diff --git a/Makefile b/Makefile
index 5f7cdca06d..769aeacb8c 100755
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ AR = ar
 LD = ld
 
 EXECUTABLE = factor
-VERSION = 0.91
+VERSION = 0.92
 
 IMAGE = factor.image
 BUNDLE = Factor.app
diff --git a/README.txt b/README.txt
index dd7c3e7ad3..754791aa1a 100755
--- a/README.txt
+++ b/README.txt
@@ -146,12 +146,13 @@ usage documentation, enter the following in the UI listener:
 The Factor source tree is organized as follows:
 
   build-support/ - scripts used for compiling Factor
-  core/ - Factor core library and compiler
-  extra/ - more libraries
+  vm/ - sources for the Factor VM, written in C
+  core/ - Factor core library
+  basis/ - Factor basis library, compiler, tools
+  extra/ - more libraries and applications
   fonts/ - TrueType fonts used by UI
   misc/ - editor modes, icons, etc
   unmaintained/ - unmaintained contributions, please help!
-  vm/ - sources for the Factor VM, written in C
 
 * Community
 
diff --git a/extra/alarms/alarms-docs.factor b/basis/alarms/alarms-docs.factor
similarity index 74%
rename from extra/alarms/alarms-docs.factor
rename to basis/alarms/alarms-docs.factor
index b25df236c9..49480c0fe0 100755
--- a/extra/alarms/alarms-docs.factor
+++ b/basis/alarms/alarms-docs.factor
@@ -9,13 +9,19 @@ HELP: add-alarm
 { $description "Creates and registers an alarm. If " { $snippet "frequency" } " is " { $link f } ", this will be a one-time alarm, otherwise it will fire with the given frequency. The quotation will be called from the alarm thread." } ;
 
 HELP: later
-{ $values { "quot" quotation } { "dt" duration } { "alarm" alarm } }
-{ $description "Creates and registers an alarm which calls the quotation once at " { $snippet "time" } { $link from-now } "." } ;
+{ $values { "quot" quotation } { "duration" duration } { "alarm" alarm } }
+{ $description "Creates and registers an alarm which calls the quotation once at " { $snippet "time" } " from now." } ;
 
 HELP: cancel-alarm
 { $values { "alarm" alarm } }
 { $description "Cancels an alarm. Does nothing if the alarm is not active." } ;
 
+HELP: every
+{ $values
+     { "quot" quotation } { "duration" duration }
+     { "alarm" alarm } }
+{ $description "Creates and registers an alarm which calls the quotation repeatedly, using " { $snippet "dt" } " as the frequency." } ;
+
 ARTICLE: "alarms" "Alarms"
 "Alarms provide a lightweight way to schedule one-time and recurring tasks without spawning a new thread."
 { $subsection alarm }
diff --git a/extra/alarms/alarms-tests.factor b/basis/alarms/alarms-tests.factor
similarity index 100%
rename from extra/alarms/alarms-tests.factor
rename to basis/alarms/alarms-tests.factor
diff --git a/extra/alarms/alarms.factor b/basis/alarms/alarms.factor
similarity index 56%
rename from extra/alarms/alarms.factor
rename to basis/alarms/alarms.factor
index ddc1d34121..7fdeca9ae6 100755
--- a/extra/alarms/alarms.factor
+++ b/basis/alarms/alarms.factor
@@ -1,11 +1,15 @@
 ! Copyright (C) 2005, 2008 Slava Pestov, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays calendar combinators generic init kernel math
-namespaces sequences heaps boxes threads debugger quotations
-assocs math.order ;
+USING: accessors arrays calendar combinators generic init
+kernel math namespaces sequences heaps boxes threads debugger
+quotations assocs math.order ;
 IN: alarms
 
-TUPLE: alarm quot time interval entry ;
+TUPLE: alarm
+    { quot callable initial: [ ] }
+    { time timestamp }
+    interval
+    { entry box } ;
 
 <PRIVATE
 
@@ -15,31 +19,28 @@ SYMBOL: alarm-thread
 : notify-alarm-thread ( -- )
     alarm-thread get-global interrupt ;
 
-: check-alarm
-    dup duration? over not or [ "Not a duration" throw ] unless
-    over timestamp? [ "Not a timestamp" throw ] unless
-    pick callable? [ "Not a quotation" throw ] unless ; inline
+ERROR: bad-alarm-frequency frequency ;
+: check-alarm ( frequency/f -- frequency/f )
+    dup [ duration? ] [ not ] bi or [ bad-alarm-frequency ] unless ;
 
 : <alarm> ( quot time frequency -- alarm )
     check-alarm <box> alarm boa ;
 
 : register-alarm ( alarm -- )
-    dup dup alarm-time alarms get-global heap-push*
-    swap alarm-entry >box
+    dup dup time>> alarms get-global heap-push*
+    swap entry>> >box
     notify-alarm-thread ;
 
 : alarm-expired? ( alarm now -- ? )
-    >r alarm-time r> before=? ;
+    [ time>> ] dip before=? ;
 
 : reschedule-alarm ( alarm -- )
-    dup alarm-time over alarm-interval time+
-    over set-alarm-time
-    register-alarm ;
+    dup [ swap interval>> time+ ] change-time register-alarm ;
 
 : call-alarm ( alarm -- )
-    dup alarm-entry box> drop
-    dup alarm-quot "Alarm execution" spawn drop
-    dup alarm-interval [ reschedule-alarm ] [ drop ] if ;
+    [ entry>> box> drop ]
+    [ quot>> "Alarm execution" spawn drop ]
+    [ dup interval>> [ reschedule-alarm ] [ drop ] if ] tri ;
 
 : (trigger-alarms) ( alarms now -- )
     over heap-empty? [
@@ -57,7 +58,7 @@ SYMBOL: alarm-thread
 
 : next-alarm ( alarms -- timestamp/f )
     dup heap-empty?
-    [ drop f ] [ heap-peek drop alarm-time ] if ;
+    [ drop f ] [ heap-peek drop time>> ] if ;
 
 : alarm-thread-loop ( -- )
     alarms get-global
@@ -66,7 +67,7 @@ SYMBOL: alarm-thread
 
 : cancel-alarms ( alarms -- )
     [
-        heap-pop-all [ nip alarm-entry box> drop ] assoc-each
+        heap-pop-all [ nip entry>> box> drop ] assoc-each
     ] when* ;
 
 : init-alarms ( -- )
@@ -81,11 +82,11 @@ PRIVATE>
 : add-alarm ( quot time frequency -- alarm )
     <alarm> [ register-alarm ] keep ;
 
-: later ( quot dt -- alarm )
-    from-now f add-alarm ;
+: later ( quot duration -- alarm )
+    hence f add-alarm ;
 
-: every ( quot dt -- alarm )
-    [ from-now ] keep add-alarm ;
+: every ( quot duration -- alarm )
+    [ hence ] keep add-alarm ;
 
 : cancel-alarm ( alarm -- )
-    alarm-entry [ alarms get-global heap-delete ] if-box? ;
+    entry>> [ alarms get-global heap-delete ] if-box? ;
diff --git a/extra/alarms/authors.txt b/basis/alarms/authors.txt
similarity index 100%
rename from extra/alarms/authors.txt
rename to basis/alarms/authors.txt
diff --git a/basis/alias/alias-docs.factor b/basis/alias/alias-docs.factor
new file mode 100644
index 0000000000..f4d4ac0361
--- /dev/null
+++ b/basis/alias/alias-docs.factor
@@ -0,0 +1,17 @@
+USING: kernel words help.markup help.syntax ;
+IN: alias
+
+HELP: ALIAS:
+{ $syntax "ALIAS: new-word existing-word" }
+{ $values { "new-word" word } { "existing-word" word } }
+{ $description "Creates a " { $snippet "new" } " inlined word that calls the " { $snippet "existing" } " word." }
+{ $examples
+    { $example "USING: alias prettyprint sequences ;"
+               "IN: alias.test"
+               "ALIAS: sequence-nth nth"
+               "0 { 10 20 30 } sequence-nth ."
+               "10"
+    }
+} ;
+
+
diff --git a/basis/alias/alias.factor b/basis/alias/alias.factor
new file mode 100755
index 0000000000..4de4d833fa
--- /dev/null
+++ b/basis/alias/alias.factor
@@ -0,0 +1,18 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors words quotations kernel effects sequences parser ;
+IN: alias
+
+PREDICATE: alias < word "alias" word-prop ;
+
+M: alias reset-word
+    [ call-next-method ] [ f "alias" set-word-prop ] bi ;
+
+M: alias stack-effect
+    def>> first stack-effect ;
+
+: define-alias ( new old -- )
+    [ 1quotation define-inline ]
+    [ drop t "alias" set-word-prop ] 2bi ;
+
+: ALIAS: CREATE-WORD scan-word define-alias ; parsing
diff --git a/core/alien/arrays/authors.txt b/basis/alias/authors.txt
similarity index 100%
rename from core/alien/arrays/authors.txt
rename to basis/alias/authors.txt
diff --git a/core/alien/arrays/arrays-docs.factor b/basis/alien/arrays/arrays-docs.factor
similarity index 100%
rename from core/alien/arrays/arrays-docs.factor
rename to basis/alien/arrays/arrays-docs.factor
diff --git a/core/alien/arrays/arrays.factor b/basis/alien/arrays/arrays.factor
similarity index 94%
rename from core/alien/arrays/arrays.factor
rename to basis/alien/arrays/arrays.factor
index 0f756e0ad0..71c3fd6ff2 100644
--- a/core/alien/arrays/arrays.factor
+++ b/basis/alien/arrays/arrays.factor
@@ -10,7 +10,7 @@ M: array c-type ;
 
 M: array heap-size unclip heap-size [ * ] reduce ;
 
-M: array c-type-align first c-type c-type-align ;
+M: array c-type-align first c-type-align ;
 
 M: array c-type-stack-align? drop f ;
 
diff --git a/core/alien/c-types/authors.txt b/basis/alien/arrays/authors.txt
similarity index 100%
rename from core/alien/c-types/authors.txt
rename to basis/alien/arrays/authors.txt
diff --git a/core/alien/arrays/summary.txt b/basis/alien/arrays/summary.txt
similarity index 100%
rename from core/alien/arrays/summary.txt
rename to basis/alien/arrays/summary.txt
diff --git a/core/alien/compiler/authors.txt b/basis/alien/c-types/authors.txt
similarity index 100%
rename from core/alien/compiler/authors.txt
rename to basis/alien/c-types/authors.txt
diff --git a/core/alien/c-types/c-types-docs.factor b/basis/alien/c-types/c-types-docs.factor
similarity index 98%
rename from core/alien/c-types/c-types-docs.factor
rename to basis/alien/c-types/c-types-docs.factor
index 8da030c7d1..03208de63a 100755
--- a/core/alien/c-types/c-types-docs.factor
+++ b/basis/alien/c-types/c-types-docs.factor
@@ -1,7 +1,7 @@
 IN: alien.c-types
 USING: alien help.syntax help.markup libc kernel.private
 byte-arrays math strings hashtables alien.syntax
-bit-arrays float-arrays debugger destructors ;
+debugger destructors ;
 
 HELP: <c-type>
 { $values { "type" hashtable } }
@@ -200,7 +200,7 @@ $nl
 "Structure and union types are specified by the name of the structure or union." ;
 
 ARTICLE: "c-byte-arrays" "Passing data in byte arrays"
-"Instances of the " { $link byte-array } ", " { $link bit-array } " and " { $link float-array } " class can be passed to C functions; the C function receives a pointer to the first element of the array."
+"Instances of the " { $link byte-array } " class can be passed to C functions; the C function receives a pointer to the first element of the array."
 $nl
 "Byte arrays can be allocated directly with a byte count using the " { $link <byte-array> } " word. However in most cases, instead of computing a size in bytes directly, it is easier to use a higher-level word which expects C type and outputs a byte array large enough to hold that type:"
 { $subsection <c-object> }
@@ -253,4 +253,4 @@ $nl
 "New C types can be defined:"
 { $subsection "c-structs" }
 { $subsection "c-unions" }
-{ $subsection "reading-writing-memory" } ;
+{ $see-also "aliens" } ;
diff --git a/core/alien/c-types/c-types-tests.factor b/basis/alien/c-types/c-types-tests.factor
similarity index 87%
rename from core/alien/c-types/c-types-tests.factor
rename to basis/alien/c-types/c-types-tests.factor
index 5f57068bab..edda9e7fdb 100755
--- a/core/alien/c-types/c-types-tests.factor
+++ b/basis/alien/c-types/c-types-tests.factor
@@ -2,6 +2,12 @@ IN: alien.c-types.tests
 USING: alien alien.syntax alien.c-types kernel tools.test
 sequences system libc alien.strings io.encodings.utf8 ;
 
+\ expand-constants must-infer
+
+: xyz 123 ;
+
+[ { "blah" 123 } ] [ { "blah" xyz } expand-constants ] unit-test
+
 : foo ( -- n ) "fdafd" f dlsym [ 123 ] unless* ;
 
 [ 123 ] [ foo ] unit-test
@@ -48,3 +54,5 @@ TYPEDEF: uchar* MyLPBYTE
 [
     0 B{ 1 2 3 4 } <displaced-alien> <void*>
 ] must-fail
+
+[ t ] [ { t f t } >c-bool-array { 1 0 1 } >c-int-array = ] unit-test
diff --git a/core/alien/c-types/c-types.factor b/basis/alien/c-types/c-types.factor
similarity index 80%
rename from core/alien/c-types/c-types.factor
rename to basis/alien/c-types/c-types.factor
index 44c0112c77..f44941d88f 100755
--- a/core/alien/c-types/c-types.factor
+++ b/basis/alien/c-types/c-types.factor
@@ -1,11 +1,10 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: bit-arrays byte-arrays float-arrays arrays
-assocs kernel kernel.private libc math
+USING: byte-arrays arrays assocs kernel kernel.private libc math
 namespaces parser sequences strings words assocs splitting
 math.parser cpu.architecture alien alien.accessors quotations
 layouts system compiler.units io.files io.encodings.binary
-accessors combinators ;
+accessors combinators effects continuations ;
 IN: alien.c-types
 
 DEFER: <int>
@@ -38,6 +37,7 @@ ERROR: no-c-type name ;
         dup string? [ (c-type) ] when
     ] when ;
 
+! C type protocol
 GENERIC: c-type ( name -- type ) foldable
 
 : resolve-pointer-type ( name -- name )
@@ -63,6 +63,60 @@ M: string c-type ( name -- type )
         ] ?if
     ] if ;
 
+GENERIC: c-type-boxer ( name -- boxer )
+
+M: c-type c-type-boxer boxer>> ;
+
+M: string c-type-boxer c-type c-type-boxer ;
+
+GENERIC: c-type-boxer-quot ( name -- quot )
+
+M: c-type c-type-boxer-quot boxer-quot>> ;
+
+M: string c-type-boxer-quot c-type c-type-boxer-quot ;
+
+GENERIC: c-type-unboxer ( name -- boxer )
+
+M: c-type c-type-unboxer unboxer>> ;
+
+M: string c-type-unboxer c-type c-type-unboxer ;
+
+GENERIC: c-type-unboxer-quot ( name -- quot )
+
+M: c-type c-type-unboxer-quot unboxer-quot>> ;
+
+M: string c-type-unboxer-quot c-type c-type-unboxer-quot ;
+
+GENERIC: c-type-reg-class ( name -- reg-class )
+
+M: c-type c-type-reg-class reg-class>> ;
+
+M: string c-type-reg-class c-type c-type-reg-class ;
+
+GENERIC: c-type-getter ( name -- quot )
+
+M: c-type c-type-getter getter>> ;
+
+M: string c-type-getter c-type c-type-getter ;
+
+GENERIC: c-type-setter ( name -- quot )
+
+M: c-type c-type-setter setter>> ;
+
+M: string c-type-setter c-type c-type-setter ;
+
+GENERIC: c-type-align ( name -- n )
+
+M: c-type c-type-align align>> ;
+
+M: string c-type-align c-type c-type-align ;
+
+GENERIC: c-type-stack-align? ( name -- ? )
+
+M: c-type c-type-stack-align? stack-align?>> ;
+
+M: string c-type-stack-align? c-type c-type-stack-align? ;
+
 : c-type-box ( n type -- )
     dup c-type-reg-class
     swap c-type-boxer [ "No boxer" throw ] unless*
@@ -73,10 +127,6 @@ M: string c-type ( name -- type )
     swap c-type-unboxer [ "No unboxer" throw ] unless*
     %unbox ;
 
-M: string c-type-align c-type c-type-align ;
-
-M: string c-type-stack-align? c-type c-type-stack-align? ;
-
 GENERIC: box-parameter ( n ctype -- )
 
 M: c-type box-parameter c-type-box ;
@@ -108,29 +158,25 @@ GENERIC: heap-size ( type -- size ) foldable
 
 M: string heap-size c-type heap-size ;
 
-M: c-type heap-size c-type-size ;
+M: c-type heap-size size>> ;
 
 GENERIC: stack-size ( type -- size ) foldable
 
 M: string stack-size c-type stack-size ;
 
-M: c-type stack-size c-type-size ;
+M: c-type stack-size size>> ;
 
 GENERIC: byte-length ( seq -- n ) flushable
 
-M: bit-array byte-length length 7 + -3 shift ;
-
 M: byte-array byte-length length ;
 
-M: float-array byte-length length "double" heap-size * ;
-
 : c-getter ( name -- quot )
-    c-type c-type-getter [
+    c-type-getter [
         [ "Cannot read struct fields with type" throw ]
     ] unless* ;
 
 : c-setter ( name -- quot )
-    c-type c-type-setter [
+    c-type-setter [
         [ "Cannot write struct fields with type" throw ]
     ] unless* ;
 
@@ -156,7 +202,9 @@ M: float-array byte-length length "double" heap-size * ;
     swap dup length memcpy ;
 
 : (define-nth) ( word type quot -- )
-    >r heap-size [ rot * ] swap prefix r> append define-inline ;
+    [
+        \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
+    ] [ ] make define-inline ;
 
 : nth-word ( name vocab -- word )
     >r "-nth" append r> create ;
@@ -203,9 +251,9 @@ M: long-long-type box-return ( type -- )
 : c-bool> ( int -- ? )
     zero? not ;
 
-: >c-array ( seq type word -- )
-    >r >r dup length dup r> <c-array> dup -roll r>
-    [ execute ] 2curry 2each ; inline
+: >c-array ( seq type word -- byte-array )
+    [ [ dup length ] dip <c-array> ] dip
+    [ [ execute ] 2curry each-index ] 2keep drop ; inline
 
 : >c-array-quot ( type vocab -- quot )
     dupd set-nth-word [ >c-array ] 2curry ;
@@ -214,7 +262,8 @@ M: long-long-type box-return ( type -- )
     >r ">c-" swap "-array" 3append r> create ;
 
 : define-to-array ( type vocab -- )
-    [ to-array-word ] 2keep >c-array-quot define ;
+    [ to-array-word ] 2keep >c-array-quot
+    (( array -- byte-array )) define-declared ;
 
 : c-array>quot ( type vocab -- quot )
     [
@@ -227,7 +276,8 @@ M: long-long-type box-return ( type -- )
     >r "c-" swap "-array>" 3append r> create ;
 
 : define-from-array ( type vocab -- )
-    [ from-array-word ] 2keep c-array>quot define ;
+    [ from-array-word ] 2keep c-array>quot
+    (( c-ptr n -- array )) define-declared ;
 
 : define-primitive-type ( type name -- )
     "alien.c-types"
@@ -240,16 +290,20 @@ M: long-long-type box-return ( type -- )
     } 2cleave ;
 
 : expand-constants ( c-type -- c-type' )
-    #! We use word-def call instead of execute to get around
-    #! staging violations
     dup array? [
-        unclip >r [ dup word? [ word-def call ] when ] map
-        r> prefix
+        unclip >r [
+            dup word? [
+                def>> { } swap with-datastack first
+            ] when
+        ] map r> prefix
     ] when ;
 
 : malloc-file-contents ( path -- alien len )
     binary file-contents dup malloc-byte-array swap length ;
 
+: if-void ( type true false -- )
+    pick "void" = [ drop nip call ] [ nip call ] if ; inline
+
 [
     <c-type>
         [ alien-cell ] >>getter
@@ -352,7 +406,7 @@ M: long-long-type box-return ( type -- )
 
     <c-type>
         [ alien-unsigned-4 zero? not ] >>getter
-        [ 1 0 ? set-alien-unsigned-4 ] >>setter
+        [ [ 1 0 ? ] 2dip set-alien-unsigned-4 ] >>setter
         4 >>size
         4 >>align
         "box_boolean" >>boxer
@@ -361,7 +415,7 @@ M: long-long-type box-return ( type -- )
 
     <c-type>
         [ alien-float ] >>getter
-        [ >r >r >float r> r> set-alien-float ] >>setter
+        [ [ >float ] 2dip set-alien-float ] >>setter
         4 >>size
         4 >>align
         "box_float" >>boxer
@@ -372,7 +426,7 @@ M: long-long-type box-return ( type -- )
 
     <c-type>
         [ alien-double ] >>getter
-        [ >r >r >float r> r> set-alien-double ] >>setter
+        [ [ >float ] 2dip set-alien-double ] >>setter
         8 >>size
         8 >>align
         "box_double" >>boxer
diff --git a/core/alien/c-types/summary.txt b/basis/alien/c-types/summary.txt
similarity index 100%
rename from core/alien/c-types/summary.txt
rename to basis/alien/c-types/summary.txt
diff --git a/core/alien/remote-control/authors.txt b/basis/alien/remote-control/authors.txt
similarity index 100%
rename from core/alien/remote-control/authors.txt
rename to basis/alien/remote-control/authors.txt
diff --git a/core/alien/remote-control/remote-control.factor b/basis/alien/remote-control/remote-control.factor
similarity index 66%
rename from core/alien/remote-control/remote-control.factor
rename to basis/alien/remote-control/remote-control.factor
index 1d713f6edd..9cd9050ea8 100755
--- a/core/alien/remote-control/remote-control.factor
+++ b/basis/alien/remote-control/remote-control.factor
@@ -1,21 +1,21 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types alien.strings parser threads words
-kernel.private kernel io.encodings.utf8 ;
+USING: accessors alien alien.c-types alien.strings parser
+threads words kernel.private kernel io.encodings.utf8 eval ;
 IN: alien.remote-control
 
-: eval-callback
+: eval-callback ( -- callback )
     "void*" { "char*" } "cdecl"
     [ eval>string utf8 malloc-string ] alien-callback ;
 
-: yield-callback
+: yield-callback ( -- callback )
     "void" { } "cdecl" [ yield ] alien-callback ;
 
-: sleep-callback
+: sleep-callback ( -- callback )
     "void" { "long" } "cdecl" [ sleep ] alien-callback ;
 
 : ?callback ( word -- alien )
-    dup compiled? [ execute ] [ drop f ] if ; inline
+    dup compiled>> [ execute ] [ drop f ] if ; inline
 
 : init-remote-control ( -- )
     \ eval-callback ?callback 16 setenv
diff --git a/core/alien/remote-control/summary.txt b/basis/alien/remote-control/summary.txt
similarity index 100%
rename from core/alien/remote-control/summary.txt
rename to basis/alien/remote-control/summary.txt
diff --git a/core/alien/strings/strings-docs.factor b/basis/alien/strings/strings-docs.factor
similarity index 81%
rename from core/alien/strings/strings-docs.factor
rename to basis/alien/strings/strings-docs.factor
index 27b0122ebe..3dc358336c 100644
--- a/core/alien/strings/strings-docs.factor
+++ b/basis/alien/strings/strings-docs.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.syntax strings byte-arrays alien libc
-debugger ;
+debugger io.encodings.string sequences ;
 IN: alien.strings
 
 HELP: string>alien
@@ -38,7 +38,11 @@ HELP: utf16n
 ARTICLE: "c-strings" "C strings"
 "C string types are arrays with shape " { $snippet "{ \"char*\" encoding }" } ", where " { $snippet "encoding" } " is an encoding descriptor. The type " { $snippet "\"char*\"" } " is an alias for " { $snippet "{ \"char*\" utf8 }" } ". See " { $link "encodings-descriptors" } " for information about encoding descriptors."
 $nl
-"Passing a Factor string to a C function expecting a C string allocates a " { $link byte-array } " in the Factor heap; the string is then converted to the requested format and a raw pointer is passed to the function. If the conversion fails, for example if the string contains null bytes or characters with values higher than 255, a " { $link c-string-error. } " is thrown."
+"Passing a Factor string to a C function expecting a C string allocates a " { $link byte-array } " in the Factor heap; the string is then converted to the requested format and a raw pointer is passed to the function."
+$nl
+"If the conversion fails, for example if the string contains null bytes or characters with values higher than 255, a " { $link c-string-error. } " is thrown."
+$nl
+"Care must be taken if the C function expects a " { $snippet "char*" } " with a length in bytes, rather than a null-terminated " { $snippet "char*" } "; passing the result of calling " { $link length } " on the string object will not suffice. This is because a Factor string of " { $emphasis "n" } " characters will not necessarily encode to " { $emphasis "n" } " bytes. The correct idiom for C functions which take a string with a length is to first encode the string using " { $link encode } ", and then pass the resulting byte array together with the length of this byte array."
 $nl
 "Sometimes a C function has a parameter type of " { $snippet "void*" } ", and various data types, among them strings, can be passed in. In this case, strings are not automatically converted to aliens, and instead you must call one of these words:"
 { $subsection string>alien }
diff --git a/core/alien/strings/strings-tests.factor b/basis/alien/strings/strings-tests.factor
similarity index 100%
rename from core/alien/strings/strings-tests.factor
rename to basis/alien/strings/strings-tests.factor
diff --git a/core/alien/strings/strings.factor b/basis/alien/strings/strings.factor
similarity index 98%
rename from core/alien/strings/strings.factor
rename to basis/alien/strings/strings.factor
index 827d478d06..70bbe773ee 100755
--- a/core/alien/strings/strings.factor
+++ b/basis/alien/strings/strings.factor
@@ -100,7 +100,7 @@ M: utf16n <encoder> drop utf16n <encoder> ;
     os windows? [ utf16n ] [ utf8 ] if alien>string ;
 
 : dll-path ( dll -- string )
-    (dll-path) alien>native-string ;
+    path>> alien>native-string ;
 
 : string>symbol ( str -- alien )
     [ os wince? [ utf16n ] [ utf8 ] if string>alien ]
diff --git a/core/alien/structs/authors.txt b/basis/alien/structs/authors.txt
similarity index 100%
rename from core/alien/structs/authors.txt
rename to basis/alien/structs/authors.txt
diff --git a/basis/alien/structs/fields/fields.factor b/basis/alien/structs/fields/fields.factor
new file mode 100644
index 0000000000..5273c2c7ba
--- /dev/null
+++ b/basis/alien/structs/fields/fields.factor
@@ -0,0 +1,76 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays kernel kernel.private math namespaces
+sequences strings words effects combinators alien.c-types ;
+IN: alien.structs.fields
+
+TUPLE: field-spec name offset type reader writer ;
+
+: reader-effect ( type spec -- effect )
+    [ 1array ] [ name>> 1array ] bi* <effect> ;
+
+PREDICATE: slot-reader < word "reading" word-prop >boolean ;
+
+: set-reader-props ( class spec -- )
+    2dup reader-effect
+    over reader>>
+    swap "declared-effect" set-word-prop
+    reader>> swap "reading" set-word-prop ;
+
+: writer-effect ( type spec -- effect )
+    name>> swap 2array 0 <effect> ;
+
+PREDICATE: slot-writer < word "writing" word-prop >boolean ;
+
+: set-writer-props ( class spec -- )
+    2dup writer-effect
+    over writer>>
+    swap "declared-effect" set-word-prop
+    writer>> swap "writing" set-word-prop ;
+
+: reader-word ( class name vocab -- word )
+    >r >r "-" r> 3append r> create ;
+
+: writer-word ( class name vocab -- word )
+    >r [ swap "set-" % % "-" % % ] "" make r> create ;
+
+: <field-spec> ( struct-name vocab type field-name -- spec )
+    field-spec new
+        0 >>offset
+        swap >>name
+        swap expand-constants >>type
+        3dup name>> swap reader-word >>reader
+        3dup name>> swap writer-word >>writer
+    2nip ;
+
+: align-offset ( offset type -- offset )
+    c-type-align align ;
+
+: struct-offsets ( specs -- size )
+    0 [
+        [ type>> align-offset ] keep
+        [ (>>offset) ] [ type>> heap-size + ] 2bi
+    ] reduce ;
+
+: define-struct-slot-word ( spec word quot -- )
+    rot offset>> prefix define-inline ;
+
+: define-getter ( type spec -- )
+    [ set-reader-props ] keep
+    [ ]
+    [ reader>> ]
+    [
+        type>>
+        [ c-getter ] [ c-type-boxer-quot ] bi append
+    ] tri
+    define-struct-slot-word ;
+
+: define-setter ( type spec -- )
+    [ set-writer-props ] keep
+    [ ]
+    [ writer>> ]
+    [ type>> c-setter ] tri
+    define-struct-slot-word ;
+
+: define-field ( type spec -- )
+    [ define-getter ] [ define-setter ] 2bi ;
diff --git a/core/alien/structs/structs-docs.factor b/basis/alien/structs/structs-docs.factor
similarity index 52%
rename from core/alien/structs/structs-docs.factor
rename to basis/alien/structs/structs-docs.factor
index baf0b40707..62b8510d17 100755
--- a/core/alien/structs/structs-docs.factor
+++ b/basis/alien/structs/structs-docs.factor
@@ -1,69 +1,7 @@
+USING: accessors alien.c-types strings help.markup help.syntax
+alien.syntax sequences io arrays kernel words assocs namespaces
+accessors ;
 IN: alien.structs
-USING: alien.c-types strings help.markup help.syntax
-alien.syntax sequences io arrays slots.deprecated
-kernel words slots assocs namespaces ;
-
-! Deprecated code
-: ($spec-reader-values) ( slot-spec class -- element )
-    dup ?word-name swap 2array
-    over slot-spec-name
-    rot slot-spec-type 2array 2array
-    [ { $instance } swap suffix ] assoc-map ;
-
-: $spec-reader-values ( slot-spec class -- )
-    ($spec-reader-values) $values ;
-
-: $spec-reader-description ( slot-spec class -- )
-    [
-        "Outputs the value stored in the " ,
-        { $snippet } rot slot-spec-name suffix ,
-        " slot of " ,
-        { $instance } swap suffix ,
-        " instance." ,
-    ] { } make $description ;
-
-: $spec-reader ( reader slot-specs class -- )
-    >r slot-of-reader r>
-    over [
-        2dup $spec-reader-values
-        2dup $spec-reader-description
-    ] when 2drop ;
-
-GENERIC: slot-specs ( help-type -- specs )
-
-M: word slot-specs "slots" word-prop ;
-
-: $slot-reader ( reader -- )
-    first dup "reading" word-prop [ slot-specs ] keep
-    $spec-reader ;
-
-: $spec-writer-values ( slot-spec class -- )
-    ($spec-reader-values) reverse $values ;
-
-: $spec-writer-description ( slot-spec class -- )
-    [
-        "Stores a new value to the " ,
-        { $snippet } rot slot-spec-name suffix ,
-        " slot of " ,
-        { $instance } swap suffix ,
-        " instance." ,
-    ] { } make $description ;
-
-: $spec-writer ( writer slot-specs class -- )
-    >r slot-of-writer r>
-    over [
-        2dup $spec-writer-values
-        2dup $spec-writer-description
-        dup ?word-name 1array $side-effects
-    ] when 2drop ;
-
-: $slot-writer ( reader -- )
-    first dup "writing" word-prop [ slot-specs ] keep
-    $spec-writer ;
-
-M: string slot-specs c-type struct-type-fields ;
-
-M: array ($instance) first ($instance) " array" write ;
 
 ARTICLE: "c-structs" "C structure types"
 "A " { $snippet "struct" } " in C is essentially a block of memory with the value of each structure field stored at a fixed offset from the start of the block. The C library interface provides some utilities to define words which read and write structure fields given a base address."
diff --git a/core/alien/structs/structs-tests.factor b/basis/alien/structs/structs-tests.factor
similarity index 92%
rename from core/alien/structs/structs-tests.factor
rename to basis/alien/structs/structs-tests.factor
index bfdcd31b99..8c7d9f9b29 100644
--- a/core/alien/structs/structs-tests.factor
+++ b/basis/alien/structs/structs-tests.factor
@@ -7,7 +7,7 @@ C-STRUCT: bar
     { { "int" 8 } "y" } ;
 
 [ 36 ] [ "bar" heap-size ] unit-test
-[ t ] [ \ <displaced-alien> "bar" c-type c-type-getter memq? ] unit-test
+[ t ] [ \ <displaced-alien> "bar" c-type-getter memq? ] unit-test
 
 C-STRUCT: align-test
     { "int" "x" }
diff --git a/basis/alien/structs/structs.factor b/basis/alien/structs/structs.factor
new file mode 100755
index 0000000000..e82d663d08
--- /dev/null
+++ b/basis/alien/structs/structs.factor
@@ -0,0 +1,62 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays generic hashtables kernel kernel.private
+math namespaces parser sequences strings words libc
+alien.c-types alien.structs.fields cpu.architecture ;
+IN: alien.structs
+
+: if-value-structs? ( ctype true false -- )
+    value-structs?
+    [ drop call ] [ >r 2drop "void*" r> call ] if ; inline
+
+TUPLE: struct-type size align fields ;
+
+M: struct-type heap-size size>> ;
+
+M: struct-type c-type-align align>> ;
+
+M: struct-type c-type-stack-align? drop f ;
+
+M: struct-type unbox-parameter
+    [ heap-size %unbox-struct ]
+    [ unbox-parameter ]
+    if-value-structs? ;
+
+M: struct-type unbox-return
+    f swap heap-size %unbox-struct ;
+
+M: struct-type box-parameter
+    [ heap-size %box-struct ]
+    [ box-parameter ]
+    if-value-structs? ;
+
+M: struct-type box-return
+    f swap heap-size %box-struct ;
+
+M: struct-type stack-size
+    [ heap-size ] [ stack-size ] if-value-structs? ;
+
+: c-struct? ( type -- ? ) (c-type) struct-type? ;
+
+: (define-struct) ( name vocab size align fields -- )
+    >r [ align ] keep r>
+    struct-type boa
+    -rot define-c-type ;
+
+: define-struct-early ( name vocab fields -- fields )
+    -rot [ rot first2 <field-spec> ] 2curry map ;
+
+: compute-struct-align ( types -- n )
+    [ c-type-align ] map supremum ;
+
+: define-struct ( name vocab fields -- )
+    pick >r
+    [ struct-offsets ] keep
+    [ [ type>> ] map compute-struct-align ] keep
+    [ (define-struct) ] keep
+    r> [ swap define-field ] curry each ;
+
+: define-union ( name vocab members -- )
+    [ expand-constants ] map
+    [ [ heap-size ] map supremum ] keep
+    compute-struct-align f (define-struct) ;
diff --git a/core/alien/structs/summary.txt b/basis/alien/structs/summary.txt
similarity index 100%
rename from core/alien/structs/summary.txt
rename to basis/alien/structs/summary.txt
diff --git a/core/alien/syntax/authors.txt b/basis/alien/syntax/authors.txt
similarity index 100%
rename from core/alien/syntax/authors.txt
rename to basis/alien/syntax/authors.txt
diff --git a/core/alien/syntax/summary.txt b/basis/alien/syntax/summary.txt
similarity index 100%
rename from core/alien/syntax/summary.txt
rename to basis/alien/syntax/summary.txt
diff --git a/core/alien/syntax/syntax-docs.factor b/basis/alien/syntax/syntax-docs.factor
similarity index 97%
rename from core/alien/syntax/syntax-docs.factor
rename to basis/alien/syntax/syntax-docs.factor
index 6565ea0e2c..37cbd12801 100755
--- a/core/alien/syntax/syntax-docs.factor
+++ b/basis/alien/syntax/syntax-docs.factor
@@ -11,7 +11,7 @@ HELP: ALIEN:
 { $syntax "ALIEN: address" }
 { $values { "address" "a non-negative integer" } }
 { $description "Creates an alien object at parse time." }
-{ $notes "Alien objects are invalidated between image saves and loads." } ;
+{ $notes "Alien objects are invalidated between image saves and loads, and hence source files should not contain alien literals; this word is for interactive use only. See " { $link "alien-expiry" } " for details." } ;
 
 ARTICLE: "syntax-aliens" "Alien object literal syntax"
 { $subsection POSTPONE: ALIEN: }
diff --git a/core/alien/syntax/syntax.factor b/basis/alien/syntax/syntax.factor
similarity index 82%
rename from core/alien/syntax/syntax.factor
rename to basis/alien/syntax/syntax.factor
index b2e819f8fb..7629897fc0 100755
--- a/core/alien/syntax/syntax.factor
+++ b/basis/alien/syntax/syntax.factor
@@ -1,9 +1,10 @@
 ! Copyright (C) 2005, 2008 Slava Pestov, Alex Chapman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays alien alien.c-types alien.structs alien.arrays
-alien.strings kernel math namespaces parser sequences words
-quotations math.parser splitting effects prettyprint
-prettyprint.sections prettyprint.backend assocs combinators ;
+USING: accessors arrays alien alien.c-types alien.structs
+alien.arrays alien.strings kernel math namespaces parser
+sequences words quotations math.parser splitting grouping
+effects prettyprint prettyprint.sections prettyprint.backend
+assocs combinators lexer strings.parser ;
 IN: alien.syntax
 
 <PRIVATE
@@ -36,6 +37,8 @@ PRIVATE>
 
 : ALIEN: scan string>number <alien> parsed ; parsing
 
+: BAD-ALIEN <bad-alien> parsed ; parsing
+
 : LIBRARY: scan "c-library" set ; parsing
 
 : FUNCTION:
@@ -66,7 +69,7 @@ PRIVATE>
 
 M: alien pprint*
     {
-        { [ dup expired? ] [ drop "( alien expired )" text ] }
+        { [ dup expired? ] [ drop \ BAD-ALIEN pprint-word ] }
         { [ dup pinned-c-ptr? not ] [ drop "( displaced alien )" text ] }
         [ \ ALIEN: [ alien-address pprint* ] pprint-prefix ]
     } cond ;
diff --git a/extra/ascii/ascii-docs.factor b/basis/ascii/ascii-docs.factor
similarity index 100%
rename from extra/ascii/ascii-docs.factor
rename to basis/ascii/ascii-docs.factor
diff --git a/extra/ascii/ascii-tests.factor b/basis/ascii/ascii-tests.factor
similarity index 100%
rename from extra/ascii/ascii-tests.factor
rename to basis/ascii/ascii-tests.factor
diff --git a/extra/ascii/ascii.factor b/basis/ascii/ascii.factor
similarity index 77%
rename from extra/ascii/ascii.factor
rename to basis/ascii/ascii.factor
index 30b801a950..c009c66cde 100755
--- a/extra/ascii/ascii.factor
+++ b/basis/ascii/ascii.factor
@@ -1,6 +1,7 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.order sequences ;
+USING: kernel math math.order sequences
+combinators.short-circuit ;
 IN: ascii
 
 : blank? ( ch -- ? ) " \t\n\r" member? ; inline
@@ -20,7 +21,7 @@ IN: ascii
     dup printable? [ "\"\\" member? not ] [ drop f ] if ; inline
 
 : Letter? ( ch -- ? )
-    dup letter? [ drop t ] [ LETTER? ] if ; inline
+    [ [ letter? ] [ LETTER? ] ] 1|| ;
 
 : alpha? ( ch -- ? )
-    dup Letter? [ drop t ] [ digit? ] if ; inline
+    [ [ Letter? ] [ digit? ] ] 1|| ;
diff --git a/core/bit-arrays/authors.txt b/basis/ascii/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/bit-arrays/authors.txt
rename to basis/ascii/authors.txt
diff --git a/extra/ascii/summary.txt b/basis/ascii/summary.txt
similarity index 100%
rename from extra/ascii/summary.txt
rename to basis/ascii/summary.txt
diff --git a/core/io/encodings/utf16/tags.txt b/basis/ascii/tags.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/io/encodings/utf16/tags.txt
rename to basis/ascii/tags.txt
diff --git a/extra/base64/authors.txt b/basis/base64/authors.txt
similarity index 100%
rename from extra/base64/authors.txt
rename to basis/base64/authors.txt
diff --git a/extra/base64/base64-docs.factor b/basis/base64/base64-docs.factor
similarity index 100%
rename from extra/base64/base64-docs.factor
rename to basis/base64/base64-docs.factor
diff --git a/basis/base64/base64-tests.factor b/basis/base64/base64-tests.factor
new file mode 100644
index 0000000000..9958e7943f
--- /dev/null
+++ b/basis/base64/base64-tests.factor
@@ -0,0 +1,19 @@
+USING: kernel tools.test base64 strings ;
+IN: base64.tests
+
+[ "abcdefghijklmnopqrstuvwxyz" ] [ "abcdefghijklmnopqrstuvwxyz" >base64 base64> >string
+] unit-test
+[ "" ] [ "" >base64 base64> >string ] unit-test
+[ "a" ] [ "a" >base64 base64> >string ] unit-test
+[ "ab" ] [ "ab" >base64 base64> >string ] unit-test
+[ "abc" ] [ "abc" >base64 base64> >string ] unit-test
+
+! From http://en.wikipedia.org/wiki/Base64
+[ "TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRoZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=" ]
+[
+    "Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure."
+    >base64 >string
+] unit-test
+
+\ >base64 must-infer
+\ base64> must-infer
diff --git a/extra/base64/base64.factor b/basis/base64/base64.factor
similarity index 60%
rename from extra/base64/base64.factor
rename to basis/base64/base64.factor
index 074640c536..747cfa1128 100644
--- a/extra/base64/base64.factor
+++ b/basis/base64/base64.factor
@@ -1,11 +1,12 @@
-USING: kernel math sequences namespaces io.binary splitting
- strings hashtables ;
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math sequences io.binary splitting grouping ;
 IN: base64
 
 <PRIVATE
 
 : count-end ( seq quot -- count )
-    >r [ length ] keep r> find-last drop dup [ - 1- ] [ 2drop 0 ] if ;
+    >r [ length ] keep r> find-last drop dup [ - 1- ] [ 2drop 0 ] if ; inline
 
 : ch>base64 ( ch -- ch )
     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" nth ;
@@ -20,28 +21,26 @@ IN: base64
     } nth ;
 
 : encode3 ( seq -- seq )
-    be> 4 [ 3 swap - -6 * shift HEX: 3f bitand ch>base64 ] with map ;
+    be> 4 <reversed> [ -6 * shift HEX: 3f bitand ch>base64 ] with B{ } map-as ;
 
 : decode4 ( str -- str )
-    [ base64>ch ] map 0 [ swap 6 shift bitor ] reduce 3 >be ;
+    0 [ base64>ch swap 6 shift bitor ] reduce 3 >be ;
 
 : >base64-rem ( str -- str )
-    [ 3 0 pad-right encode3 ] keep length 1+ head 4 CHAR: = pad-right ;
+    [ 3 0 pad-right encode3 ] [ length 1+ ] bi head 4 CHAR: = pad-right ;
 
 PRIVATE>
 
 : >base64 ( seq -- base64 )
     #! cut string into two pieces, convert 3 bytes at a time
     #! pad string with = when not enough bits
-    dup length dup 3 mod - cut swap
-    [
-        3 <groups> [ encode3 % ] each
-        dup empty? [ drop ] [ >base64-rem % ] if
-    ] "" make ;
+    dup length dup 3 mod - cut
+    [ 3 <groups> [ encode3 ] map concat ]
+    [ [ "" ] [ >base64-rem ] if-empty ]
+    bi* append ;
 
 : base64> ( base64 -- str )
     #! input length must be a multiple of 4
-    [
-        [ 4 <groups> [ decode4 % ] each ] keep [ CHAR: = = not ] count-end 
-    ] SBUF" " make swap [ dup pop* ] times >string ;
-
+    [ 4 <groups> [ decode4 ] map concat ]
+    [ [ CHAR: = = not ] count-end ]
+    bi head* ;
diff --git a/extra/base64/summary.txt b/basis/base64/summary.txt
similarity index 100%
rename from extra/base64/summary.txt
rename to basis/base64/summary.txt
diff --git a/core/bootstrap/compiler/authors.txt b/basis/biassocs/authors.txt
similarity index 100%
rename from core/bootstrap/compiler/authors.txt
rename to basis/biassocs/authors.txt
diff --git a/basis/biassocs/biassocs-docs.factor b/basis/biassocs/biassocs-docs.factor
new file mode 100644
index 0000000000..1fde3d05b3
--- /dev/null
+++ b/basis/biassocs/biassocs-docs.factor
@@ -0,0 +1,28 @@
+IN: biassocs
+USING: help.markup help.syntax assocs kernel ;
+
+HELP: biassoc
+{ $class-description "The class of bidirectional assocs. Bidirectional assoc are implemented by combining two assocs, with one the transpose of the other." } ;
+
+HELP: <biassoc>
+{ $values { "exemplar" assoc } { "biassoc" biassoc } }
+{ $description "Creates a new biassoc using a new assoc of the same type as " { $snippet "exemplar" } " for underlying storage." } ;
+
+HELP: <bihash>
+{ $values { "biassoc" biassoc } }
+{ $description "Creates a new biassoc using a pair of hashtables for underlying storage." } ;
+
+HELP: once-at
+{ $values { "value" object } { "key" object } { "assoc" assoc } }
+{ $description "If the assoc does not contain the given key, adds the key/value pair to the assoc, otherwise does nothing." } ;
+
+ARTICLE: "biassocs" "Bidirectional assocs"
+"A " { $emphasis "bidirectional assoc" } " combines a pair of assocs to form a data structure where both normal assoc opeartions (eg, " { $link at } "), as well as " { $link "assocs-values" } " (eg, " { $link value-at } ") run in sub-linear time."
+$nl
+"Bidirectional assocs implement the entire assoc protocol with the exception of " { $link delete-at } ". Duplicate values are allowed, however value lookups with " { $link value-at } " only return the first key that a given value was stored with."
+{ $subsection biassoc }
+{ $subsection biassoc? }
+{ $subsection <biassoc> }
+{ $subsection <bihash> } ;
+
+ABOUT: "biassocs"
diff --git a/basis/biassocs/biassocs-tests.factor b/basis/biassocs/biassocs-tests.factor
new file mode 100644
index 0000000000..4cd7f00f80
--- /dev/null
+++ b/basis/biassocs/biassocs-tests.factor
@@ -0,0 +1,22 @@
+IN: biassocs.tests
+USING: biassocs assocs namespaces tools.test ;
+
+<bihash> "h" set
+
+[ 0 ] [ "h" get assoc-size ] unit-test
+
+[ ] [ 1 2 "h" get set-at ] unit-test
+
+[ 1 ] [ 2 "h" get at ] unit-test
+
+[ 2 ] [ 1 "h" get value-at ] unit-test
+
+[ 1 ] [ "h" get assoc-size ] unit-test
+
+[ ] [ 1 3 "h" get set-at ] unit-test
+
+[ 1 ] [ 3 "h" get at ] unit-test
+
+[ 2 ] [ 1 "h" get value-at ] unit-test
+
+[ 2 ] [ "h" get assoc-size ] unit-test
diff --git a/basis/biassocs/biassocs.factor b/basis/biassocs/biassocs.factor
new file mode 100644
index 0000000000..a9f0cabd10
--- /dev/null
+++ b/basis/biassocs/biassocs.factor
@@ -0,0 +1,40 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel assocs accessors summary ;
+IN: biassocs
+
+TUPLE: biassoc from to ;
+
+: <biassoc> ( exemplar -- biassoc )
+    [ clone ] [ clone ] bi biassoc boa ;
+
+: <bihash> ( -- biassoc )
+    H{ } <biassoc> ;
+
+M: biassoc assoc-size from>> assoc-size ;
+
+M: biassoc at* from>> at* ;
+
+M: biassoc value-at* to>> at* ;
+
+: once-at ( value key assoc -- )
+    2dup key? [ 3drop ] [ set-at ] if ;
+
+M: biassoc set-at
+    [ from>> set-at ] [ swapd to>> once-at ] 3bi ;
+
+ERROR: no-biassoc-deletion ;
+
+M: no-biassoc-deletion summary
+    drop "biassocs do not support deletion" ;
+
+M: biassoc delete-at
+    no-biassoc-deletion ;
+
+M: biassoc >alist
+    from>> >alist ;
+
+M: biassoc clear-assoc
+    [ from>> clear-assoc ] [ to>> clear-assoc ] bi ;
+
+INSTANCE: biassoc assoc
diff --git a/basis/biassocs/summary.txt b/basis/biassocs/summary.txt
new file mode 100644
index 0000000000..84c5b15afc
--- /dev/null
+++ b/basis/biassocs/summary.txt
@@ -0,0 +1 @@
+Bidirectional assocs
diff --git a/core/bit-arrays/tags.txt b/basis/biassocs/tags.txt
similarity index 100%
rename from core/bit-arrays/tags.txt
rename to basis/biassocs/tags.txt
diff --git a/basis/binary-search/binary-search-docs.factor b/basis/binary-search/binary-search-docs.factor
new file mode 100644
index 0000000000..8b85e078ce
--- /dev/null
+++ b/basis/binary-search/binary-search-docs.factor
@@ -0,0 +1,43 @@
+IN: binary-search
+USING: help.markup help.syntax sequences kernel math.order ;
+
+ARTICLE: "binary-search" "Binary search"
+"The " { $emphasis "binary search" } " algorithm allows elements to be located in sorted sequence in " { $snippet "O(log n)" } " time."
+{ $subsection search }
+"Variants of sequence words optimized for sorted sequences:"
+{ $subsection sorted-index }
+{ $subsection sorted-member? }
+{ $subsection sorted-memq? }
+{ $see-also "order-specifiers" "sequences-sorting" } ;
+
+ABOUT: "binary-search"
+
+HELP: search
+{ $values { "seq" "a sorted sequence" } { "quot" "a quotation with stack effect " { $snippet "( elt -- <=> )" } } { "i" "an index, or " { $link f } } { "elt" "an element, or " { $link f } } }
+{ $description "Performs a binary search on a sequence, calling the quotation to decide whether to end the search (" { $link +eq+ } "), search lower (" { $link +lt+ } ") or search higher (" { $link +gt+ } ")."
+$nl
+"If the sequence is non-empty, outputs the index and value of the closest match, which is either an element for which the quotation output " { $link +eq+ } ", or failing that, least element for which the quotation output " { $link +lt+ } "."
+$nl
+"If the sequence is empty, outputs " { $link f } " " { $link f } "." }
+{ $notes "If the sequence has at least one element, this word always outputs a valid index, because it finds the closest match, not necessarily an exact one. In this respect its behavior differs from " { $link find } "." } ;
+
+{ find find-from find-last find-last find-last-from search } related-words
+
+HELP: sorted-index
+{ $values { "obj" object } { "seq" "a sorted sequence" } { "i" "an index, or " { $link f } } }
+{ $description "Outputs the index and value of the element closest to " { $snippet "elt" } " in the sequence. See " { $link search } " for details." }
+{ $notes "If the sequence has at least one element, this word always outputs a valid index, because it finds the closest match, not necessarily an exact one. In this respect its behavior differs from " { $link index } "." } ;
+
+{ index index-from last-index last-index-from sorted-index } related-words
+
+HELP: sorted-member?
+{ $values { "obj" object } { "seq" "a sorted sequence" } { "?" "a boolean" } }
+{ $description "Tests if the sorted sequence contains " { $snippet "elt" } ". Equality is tested with " { $link = } "." } ;
+
+{ member? sorted-member? } related-words
+
+HELP: sorted-memq?
+{ $values { "obj" object } { "seq" "a sorted sequence" } { "?" "a boolean" } }
+{ $description "Tests if the sorted sequence contains " { $snippet "elt" } ". Equality is tested with " { $link eq? } "." } ;
+
+{ memq? sorted-memq? } related-words
diff --git a/basis/binary-search/binary-search-tests.factor b/basis/binary-search/binary-search-tests.factor
new file mode 100644
index 0000000000..77b1c16505
--- /dev/null
+++ b/basis/binary-search/binary-search-tests.factor
@@ -0,0 +1,17 @@
+IN: binary-search.tests
+USING: binary-search math.order vectors kernel tools.test ;
+
+\ sorted-member? must-infer
+
+[ f ] [ 3 { } [ <=> ] with search drop ] unit-test
+[ 0 ] [ 3 { 3 } [ <=> ] with search drop ] unit-test
+[ 1 ] [ 2 { 1 2 3 } [ <=> ] with search drop ] unit-test
+[ 3 ] [ 4 { 1 2 3 4 5 6 } [ <=> ] with search drop ] unit-test
+[ 2 ] [ 3.5 { 1 2 3 4 5 6 7 8 } [ <=> ] with search drop ] unit-test
+[ 4 ] [ 5.5 { 1 2 3 4 5 6 7 8 } [ <=> ] with search drop ] unit-test
+[ 10 ] [ 10 20 >vector [ <=> ] with search drop ] unit-test
+
+[ t ] [ "hello" { "alligrator" "cat" "fish" "hello" "ikarus" "java" } sorted-member? ] unit-test
+[ 3 ] [ "hey" { "alligrator" "cat" "fish" "hello" "ikarus" "java" } sorted-index ] unit-test
+[ f ] [ "hello" { "alligrator" "cat" "fish" "ikarus" "java" } sorted-member? ] unit-test
+[ f ] [ "zebra" { "alligrator" "cat" "fish" "ikarus" "java" } sorted-member? ] unit-test
diff --git a/basis/binary-search/binary-search.factor b/basis/binary-search/binary-search.factor
new file mode 100644
index 0000000000..f29e05c023
--- /dev/null
+++ b/basis/binary-search/binary-search.factor
@@ -0,0 +1,48 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences sequences.private accessors math
+math.order combinators hints arrays ;
+IN: binary-search
+
+<PRIVATE
+
+: midpoint ( seq -- elt )
+    [ midpoint@ ] keep nth-unsafe ; inline
+
+: decide ( quot seq -- quot seq <=> )
+    [ midpoint swap call ] 2keep rot ; inline
+
+: finish ( quot slice -- i elt )
+    [ [ from>> ] [ midpoint@ ] bi + ] [ seq>> ] bi
+    [ drop ] [ dup ] [ ] tri* nth ; inline
+
+: (search) ( quot: ( elt -- <=> ) seq -- i elt )
+    dup length 1 <= [
+        finish
+    ] [
+        decide {
+            { +eq+ [ finish ] }
+            { +lt+ [ dup midpoint@ head-slice (search) ] }
+            { +gt+ [ dup midpoint@ tail-slice (search) ] }
+        } case
+    ] if ; inline recursive
+
+PRIVATE>
+
+: search ( seq quot -- i elt )
+    over empty? [ 2drop f f ] [ swap <flat-slice> (search) ] if ;
+    inline
+
+: natural-search ( obj seq -- i elt )
+    [ <=> ] with search ;
+
+HINTS: natural-search array ;
+
+: sorted-index ( obj seq -- i )
+    natural-search drop ;
+
+: sorted-member? ( obj seq -- ? )
+    dupd natural-search nip = ;
+
+: sorted-memq? ( obj seq -- ? )
+    dupd natural-search nip eq? ;
diff --git a/core/bootstrap/image/authors.txt b/basis/bit-arrays/authors.txt
similarity index 100%
rename from core/bootstrap/image/authors.txt
rename to basis/bit-arrays/authors.txt
diff --git a/core/bit-arrays/bit-arrays-docs.factor b/basis/bit-arrays/bit-arrays-docs.factor
similarity index 51%
rename from core/bit-arrays/bit-arrays-docs.factor
rename to basis/bit-arrays/bit-arrays-docs.factor
index f804ed21f4..fab2a62062 100644
--- a/core/bit-arrays/bit-arrays-docs.factor
+++ b/basis/bit-arrays/bit-arrays-docs.factor
@@ -1,9 +1,9 @@
 USING: arrays help.markup help.syntax kernel
-kernel.private prettyprint strings vectors sbufs ;
+kernel.private math prettyprint strings vectors sbufs ;
 IN: bit-arrays
 
 ARTICLE: "bit-arrays" "Bit arrays"
-"Bit array are a fixed-size mutable sequences (" { $link "sequence-protocol" } ") whose elements are either " { $link t } " or " { $link f } ". Each element only uses one bit of storage, hence the name. The literal syntax is covered in " { $link "syntax-bit-arrays" } "."
+"Bit array are a fixed-size mutable sequences (" { $link "sequence-protocol" } ") whose elements are either " { $link t } " or " { $link f } ". Each element only uses one bit of storage, hence the name."
 $nl
 "Bit array words are in the " { $vocab-link "bit-arrays" } " vocabulary."
 $nl
@@ -17,12 +17,23 @@ $nl
 { $subsection <bit-array> }
 "Efficiently setting and clearing all bits in a bit array:"
 { $subsection set-bits }
-{ $subsection clear-bits } ;
+{ $subsection clear-bits }
+"Converting between unsigned integers and their binary representation:"
+{ $subsection integer>bit-array }
+{ $subsection bit-array>integer }
+"Bit array literal syntax:"
+{ $subsection POSTPONE: ?{ } ;
 
 ABOUT: "bit-arrays"
 
+HELP: ?{
+{ $syntax "?{ elements... }" }
+{ $values { "elements" "a list of booleans" } }
+{ $description "Marks the beginning of a literal bit array. Literal bit arrays are terminated by " { $link POSTPONE: } } "." } 
+{ $examples { $code "?{ t f t }" } } ;
+
 HELP: bit-array
-{ $description "The class of fixed-length bit arrays. See " { $link "syntax-bit-arrays" } " for syntax and " { $link "bit-arrays" } " for general information." } ;
+{ $description "The class of fixed-length bit arrays." } ;
 
 HELP: <bit-array> ( n -- bit-array )
 { $values { "n" "a non-negative integer" } { "bit-array" "a new " { $link bit-array } } }
@@ -47,3 +58,13 @@ HELP: set-bits
     { $code "[ drop t ] change-each" }
 }
 { $side-effects "bit-array" } ;
+
+HELP: integer>bit-array
+{ $values { "n" integer } { "bit-array" bit-array } }
+{ $description "Outputs a freshly-allocated bit array whose elements correspond to the bits in the binary representation of the given unsigned integer value." }
+{ $notes "The bits of the integer are stored in the resulting bit array in order of ascending significance, least significant bit first. This word will fail if passed a negative integer. If you want the two's-complement binary representation of a negative number, use " { $link bitnot } " to get the complement of the number first. This word works with fixnums or bignums of any size; it is not limited by fixnum size or machine word size." } ;
+
+HELP: bit-array>integer
+{ $values { "bit-array" bit-array } { "n" integer } }
+{ $description "Outputs the unsigned integer whose binary representation corresponds to the contents of the given bit array." }
+{ $notes "The bits of the integer are taken from the bit array in order of ascending significance, least significant bit first. This word is able to return fixnums or bignums of any size; it is not limited by fixnum size or machine word size." } ;
diff --git a/basis/bit-arrays/bit-arrays-tests.factor b/basis/bit-arrays/bit-arrays-tests.factor
new file mode 100755
index 0000000000..a5ae23dde6
--- /dev/null
+++ b/basis/bit-arrays/bit-arrays-tests.factor
@@ -0,0 +1,78 @@
+USING: sequences sequences.private arrays bit-arrays kernel
+tools.test math random ;
+IN: bit-arrays.tests
+
+[ 100 ] [ 100 <bit-array> length ] unit-test
+
+[
+    { t f t }
+] [
+    3 <bit-array> t 0 pick set-nth t 2 pick set-nth
+    >array
+] unit-test
+
+[
+    { t f t }
+] [
+    { t f t } >bit-array >array
+] unit-test
+
+[
+    { t f t } { f t f }
+] [
+    { t f t } >bit-array dup clone dup [ not ] change-each
+    [ >array ] bi@
+] unit-test
+
+[
+    { f f f f f }
+] [
+    { t f t t f } >bit-array dup clear-bits >array
+] unit-test
+
+[
+    { t t t t t }
+] [
+    { t f t t f } >bit-array dup set-bits >array
+] unit-test
+
+[ t ] [
+    100 [
+        drop 100 [ 2 random zero? ] replicate
+        dup >bit-array >array =
+    ] all?
+] unit-test
+
+[ ?{ f } ] [
+    1 2 { t f t f } <slice> >bit-array
+] unit-test
+
+[ ?{ f t } ] [ 0 2 ?{ f t f } subseq ] unit-test
+
+[ ?{ t f t f f f } ] [ 6 ?{ t f t } resize ] unit-test
+
+[ ?{ t t } ] [ 2 ?{ t t f t f t f t t t f t } resize ] unit-test
+
+[ -10 ?{ } resize ] must-fail
+
+[ -1 integer>bit-array ] must-fail
+[ ?{ } ] [ 0 integer>bit-array ] unit-test
+[ ?{ f t } ] [ 2 integer>bit-array ] unit-test
+[ ?{ t t t t t t t t t } ] [ 511 integer>bit-array ] unit-test
+[ ?{ 
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+} ] [
+    HEX: ffffffffffffffffffffffffffffffff integer>bit-array
+] unit-test
+
+[ 14 ] [ ?{ f t t t } bit-array>integer ] unit-test
+[ 0 ] [ ?{ } bit-array>integer ] unit-test
+[ HEX: ffffffffffffffffffffffffffffffff ] [ ?{
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+    t t t t t t t t   t t t t t t t t   t t t t t t t t  t t t t t t t t
+} bit-array>integer ] unit-test
diff --git a/basis/bit-arrays/bit-arrays.factor b/basis/bit-arrays/bit-arrays.factor
new file mode 100755
index 0000000000..11601f7b63
--- /dev/null
+++ b/basis/bit-arrays/bit-arrays.factor
@@ -0,0 +1,95 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.c-types accessors math alien.accessors kernel
+kernel.private locals sequences sequences.private byte-arrays
+parser prettyprint.backend ;
+IN: bit-arrays
+
+TUPLE: bit-array
+{ length array-capacity read-only }
+{ underlying byte-array read-only } ;
+
+<PRIVATE
+
+: n>byte -3 shift ; inline
+
+: byte/bit ( n alien -- byte bit )
+    over n>byte alien-unsigned-1 swap 7 bitand ; inline
+
+: set-bit ( ? byte bit -- byte )
+    2^ rot [ bitor ] [ bitnot bitand ] if ; inline
+
+: bits>cells 31 + -5 shift ; inline
+
+: bits>bytes 7 + n>byte ; inline
+
+: (set-bits) ( bit-array n -- )
+    [ [ length bits>cells ] keep ] dip
+    [ -rot underlying>> set-uint-nth ] 2curry
+    each ; inline
+
+PRIVATE>
+
+: <bit-array> ( n -- bit-array )
+    dup bits>bytes <byte-array> bit-array boa ; inline
+
+M: bit-array length length>> ;
+
+M: bit-array nth-unsafe
+    [ >fixnum ] [ underlying>> ] bi* byte/bit bit? ;
+
+M: bit-array set-nth-unsafe
+    [ >fixnum ] [ underlying>> ] bi*
+    [ byte/bit set-bit ] 2keep
+    swap n>byte set-alien-unsigned-1 ;
+
+: clear-bits ( bit-array -- ) 0 (set-bits) ;
+
+: set-bits ( bit-array -- ) -1 (set-bits) ;
+
+M: bit-array clone
+    [ length>> ] [ underlying>> clone ] bi bit-array boa ;
+
+: >bit-array ( seq -- bit-array )
+    T{ bit-array f 0 B{ } } clone-like ; inline
+
+M: bit-array like drop dup bit-array? [ >bit-array ] unless ;
+
+M: bit-array new-sequence drop <bit-array> ;
+
+M: bit-array equal?
+    over bit-array? [ sequence= ] [ 2drop f ] if ;
+
+M: bit-array resize
+    [ drop ] [
+        [ bits>bytes ] [ underlying>> ] bi*
+        resize-byte-array
+    ] 2bi
+    bit-array boa ;
+
+M: bit-array byte-length length 7 + -3 shift ;
+
+: ?{ \ } [ >bit-array ] parse-literal ; parsing
+
+:: integer>bit-array ( n -- bit-array ) 
+    n zero? [ 0 <bit-array> ] [
+        [let | out [ n log2 1+ <bit-array> ] i! [ 0 ] n'! [ n ] |
+            [ n' zero? not ] [
+                n' out underlying>> i set-alien-unsigned-1
+                n' -8 shift n'!
+                i 1+ i!
+            ] [ ] while
+            out
+        ]
+    ] if ;
+
+: bit-array>integer ( bit-array -- n )
+    0 swap underlying>> [ length ] keep [
+        uchar-nth swap 8 shift bitor
+    ] curry each ;
+
+INSTANCE: bit-array sequence
+
+M: bit-array pprint-delims drop \ ?{ \ } ;
+M: bit-array >pprint-sequence ;
+M: bit-array pprint* pprint-object ;
diff --git a/core/bit-arrays/summary.txt b/basis/bit-arrays/summary.txt
similarity index 100%
rename from core/bit-arrays/summary.txt
rename to basis/bit-arrays/summary.txt
diff --git a/core/dlists/tags.txt b/basis/bit-arrays/tags.txt
similarity index 100%
rename from core/dlists/tags.txt
rename to basis/bit-arrays/tags.txt
diff --git a/extra/bit-vectors/bit-vectors-docs.factor b/basis/bit-vectors/bit-vectors-docs.factor
similarity index 72%
rename from extra/bit-vectors/bit-vectors-docs.factor
rename to basis/bit-vectors/bit-vectors-docs.factor
index 41f32b4cdb..f0e4e47586 100755
--- a/extra/bit-vectors/bit-vectors-docs.factor
+++ b/basis/bit-vectors/bit-vectors-docs.factor
@@ -1,5 +1,5 @@
 USING: arrays bit-arrays help.markup help.syntax kernel
-bit-vectors.private combinators ;
+combinators ;
 IN: bit-vectors
 
 ARTICLE: "bit-vectors" "Bit vectors"
@@ -29,11 +29,6 @@ HELP: >bit-vector
 { $values { "seq" "a sequence" } { "bit-vector" bit-vector } }
 { $description "Outputs a freshly-allocated bit vector with the same elements as a given sequence." } ;
 
-HELP: bit-array>vector
-{ $values { "bit-array" "an array" } { "length" "a non-negative integer" } { "bit-vector" bit-vector } }
-{ $description "Creates a new bit vector using the array for underlying storage with the specified initial length." }
-{ $warning "This word is in the " { $vocab-link "bit-vectors.private" } " vocabulary because it does not perform type or bounds checks. User code should call " { $link >bit-vector } " instead." } ;
-
 HELP: ?V{
 { $syntax "?V{ elements... }" }
 { $values { "elements" "a list of booleans" } }
diff --git a/extra/bit-vectors/bit-vectors-tests.factor b/basis/bit-vectors/bit-vectors-tests.factor
similarity index 100%
rename from extra/bit-vectors/bit-vectors-tests.factor
rename to basis/bit-vectors/bit-vectors-tests.factor
diff --git a/extra/bit-vectors/bit-vectors.factor b/basis/bit-vectors/bit-vectors.factor
similarity index 57%
rename from extra/bit-vectors/bit-vectors.factor
rename to basis/bit-vectors/bit-vectors.factor
index c14b0a5476..404b26829b 100755
--- a/extra/bit-vectors/bit-vectors.factor
+++ b/basis/bit-vectors/bit-vectors.factor
@@ -5,25 +5,12 @@ sequences.private growable bit-arrays prettyprint.backend
 parser accessors ;
 IN: bit-vectors
 
-TUPLE: bit-vector underlying fill ;
-
-M: bit-vector underlying underlying>> { bit-array } declare ;
-
-M: bit-vector set-underlying (>>underlying) ;
-
-M: bit-vector length fill>> { array-capacity } declare ;
-
-M: bit-vector set-fill (>>fill) ;
-
-<PRIVATE
-
-: bit-array>vector ( bit-array length -- bit-vector )
-    bit-vector boa ; inline
-
-PRIVATE>
+TUPLE: bit-vector
+{ underlying bit-array initial: ?{ } }
+{ length array-capacity } ;
 
 : <bit-vector> ( n -- bit-vector )
-    <bit-array> 0 bit-array>vector ; inline
+    <bit-array> 0 bit-vector boa ; inline
 
 : >bit-vector ( seq -- bit-vector )
     T{ bit-vector f ?{ } 0 } clone-like ;
@@ -31,11 +18,11 @@ PRIVATE>
 M: bit-vector like
     drop dup bit-vector? [
         dup bit-array?
-        [ dup length bit-array>vector ] [ >bit-vector ] if
+        [ dup length bit-vector boa ] [ >bit-vector ] if
     ] unless ;
 
 M: bit-vector new-sequence
-    drop [ <bit-array> ] keep >fixnum bit-array>vector ;
+    drop [ <bit-array> ] [ >fixnum ] bi bit-vector boa ;
 
 M: bit-vector equal?
     over bit-vector? [ sequence= ] [ 2drop f ] if ;
@@ -47,5 +34,5 @@ INSTANCE: bit-vector growable
 : ?V{ \ } [ >bit-vector ] parse-literal ; parsing
 
 M: bit-vector >pprint-sequence ;
-
 M: bit-vector pprint-delims drop \ ?V{ \ } ;
+M: bit-vector pprint* pprint-object ;
diff --git a/extra/bit-vectors/summary.txt b/basis/bit-vectors/summary.txt
similarity index 100%
rename from extra/bit-vectors/summary.txt
rename to basis/bit-vectors/summary.txt
diff --git a/core/float-arrays/tags.txt b/basis/bit-vectors/tags.txt
similarity index 100%
rename from core/float-arrays/tags.txt
rename to basis/bit-vectors/tags.txt
diff --git a/core/command-line/authors.txt b/basis/bootstrap/compiler/authors.txt
similarity index 100%
rename from core/command-line/authors.txt
rename to basis/bootstrap/compiler/authors.txt
diff --git a/core/bootstrap/compiler/compiler.factor b/basis/bootstrap/compiler/compiler.factor
similarity index 55%
rename from core/bootstrap/compiler/compiler.factor
rename to basis/bootstrap/compiler/compiler.factor
index 7ad1c6978b..0b44761f5c 100755
--- a/core/bootstrap/compiler/compiler.factor
+++ b/basis/bootstrap/compiler/compiler.factor
@@ -1,11 +1,13 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: compiler cpu.architecture vocabs.loader system sequences
-namespaces parser kernel kernel.private classes classes.private
-arrays hashtables vectors classes.tuple sbufs inference.dataflow
+USING: accessors compiler cpu.architecture vocabs.loader system
+sequences namespaces parser kernel kernel.private classes
+classes.private arrays hashtables vectors classes.tuple sbufs
 hashtables.private sequences.private math classes.tuple.private
-growable namespaces.private assocs words generator command-line
-vocabs io prettyprint libc compiler.units math.order ;
+growable namespaces.private assocs words command-line vocabs io
+io.encodings.string prettyprint libc splitting math.parser
+compiler.units math.order compiler.tree.builder
+compiler.tree.optimizer ;
 IN: bootstrap.compiler
 
 ! Don't bring this in when deploying, since it will store a
@@ -14,11 +16,12 @@ IN: bootstrap.compiler
     "alien.remote-control" require
 ] unless
 
-"cpu." cpu word-name append require
+"cpu." cpu name>> append require
 
 enable-compiler
 
-: compile-uncompiled [ compiled? not ] filter compile ;
+: compile-uncompiled ( words -- )
+    [ compiled>> not ] filter compile ;
 
 nl
 "Compiling..." write flush
@@ -33,16 +36,18 @@ nl
     roll -roll declare not
 
     array? hashtable? vector?
-    tuple? sbuf? node? tombstone?
+    tuple? sbuf? tombstone?
 
-    array-capacity array-nth set-array-nth
+    array-nth set-array-nth
 
     wrap probe
 
-    underlying
+    namestack*
+} compile-uncompiled
 
-    find-pair-next namestack*
+"." write flush
 
+{
     bitand bitor bitxor bitnot
 } compile-uncompiled
 
@@ -67,15 +72,27 @@ nl
 "." write flush
 
 {
-    . lines
+    memq? split harvest sift cut cut-slice start index clone
+    set-at reverse push-all class number>string string>number
 } compile-uncompiled
 
 "." write flush
 
 {
-    malloc calloc free memcpy
+    lines prefix suffix unclip new-assoc update
+    word-prop set-word-prop 1array 2array 3array ?nth
 } compile-uncompiled
 
+"." write flush
+
+{
+    . malloc calloc free memcpy
+} compile-uncompiled
+
+{ build-tree } compile-uncompiled
+
+{ optimize-tree } compile-uncompiled
+
 vocabs [ words compile-uncompiled "." write flush ] each
 
 " done" print flush
diff --git a/core/bootstrap/compiler/summary.txt b/basis/bootstrap/compiler/summary.txt
similarity index 100%
rename from core/bootstrap/compiler/summary.txt
rename to basis/bootstrap/compiler/summary.txt
diff --git a/extra/bootstrap/handbook/handbook.factor b/basis/bootstrap/handbook/handbook.factor
similarity index 77%
rename from extra/bootstrap/handbook/handbook.factor
rename to basis/bootstrap/handbook/handbook.factor
index 2ffb77de7a..51aa9eefaf 100755
--- a/extra/bootstrap/handbook/handbook.factor
+++ b/basis/bootstrap/handbook/handbook.factor
@@ -1,3 +1,4 @@
 USING: vocabs.loader vocabs kernel ;
+IN: bootstrap.handbook
 
 "bootstrap.help" vocab [ "help.handbook" require ] when
diff --git a/core/compiler/authors.txt b/basis/bootstrap/help/authors.txt
similarity index 100%
rename from core/compiler/authors.txt
rename to basis/bootstrap/help/authors.txt
diff --git a/extra/bootstrap/help/help.factor b/basis/bootstrap/help/help.factor
similarity index 95%
rename from extra/bootstrap/help/help.factor
rename to basis/bootstrap/help/help.factor
index 9dd4fd04b2..e2a2288988 100755
--- a/extra/bootstrap/help/help.factor
+++ b/basis/bootstrap/help/help.factor
@@ -3,7 +3,7 @@ help.definitions io io.files kernel namespaces vocabs sequences
 parser vocabs.loader ;
 IN: bootstrap.help
 
-: load-help
+: load-help ( -- )
     "alien.syntax" require
     "compiler" require
 
diff --git a/extra/bootstrap/help/summary.txt b/basis/bootstrap/help/summary.txt
similarity index 100%
rename from extra/bootstrap/help/summary.txt
rename to basis/bootstrap/help/summary.txt
diff --git a/core/compiler/constants/authors.txt b/basis/bootstrap/image/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/compiler/constants/authors.txt
rename to basis/bootstrap/image/authors.txt
diff --git a/core/cpu/architecture/authors.txt b/basis/bootstrap/image/download/authors.txt
similarity index 100%
rename from core/cpu/architecture/authors.txt
rename to basis/bootstrap/image/download/authors.txt
diff --git a/extra/bootstrap/image/download/download.factor b/basis/bootstrap/image/download/download.factor
similarity index 69%
rename from extra/bootstrap/image/download/download.factor
rename to basis/bootstrap/image/download/download.factor
index c2e80fee9a..71aa2e8adc 100644
--- a/extra/bootstrap/image/download/download.factor
+++ b/basis/bootstrap/image/download/download.factor
@@ -1,13 +1,13 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-IN: bootstrap.image.download
 USING: http.client checksums checksums.openssl splitting assocs
-kernel io.files bootstrap.image sequences io ;
+kernel io.files bootstrap.image sequences io urls ;
+IN: bootstrap.image.download
 
-: url "http://factorcode.org/images/latest/" ;
+: url URL" http://factorcode.org/images/latest/" ;
 
 : download-checksums ( -- alist )
-    url "checksums.txt" append http-get
+    url "checksums.txt" >url derive-url http-get nip
     string-lines [ " " split1 ] { } map>assoc ;
 
 : need-new-image? ( image -- ? )
@@ -21,7 +21,10 @@ kernel io.files bootstrap.image sequences io ;
 : download-image ( arch -- )
     boot-image-name dup need-new-image? [
         "Downloading " write dup write "..." print
-        url prepend download
+         url over >url derive-url download
+         need-new-image? [
+             "Boot image corrupt, or checksums.txt on server out of date" throw
+         ] when
     ] [
         "Boot image up to date" print
         drop
diff --git a/extra/bootstrap/image/download/summary.txt b/basis/bootstrap/image/download/summary.txt
similarity index 100%
rename from extra/bootstrap/image/download/summary.txt
rename to basis/bootstrap/image/download/summary.txt
diff --git a/core/bootstrap/image/image-docs.factor b/basis/bootstrap/image/image-docs.factor
similarity index 100%
rename from core/bootstrap/image/image-docs.factor
rename to basis/bootstrap/image/image-docs.factor
diff --git a/core/bootstrap/image/image-tests.factor b/basis/bootstrap/image/image-tests.factor
similarity index 100%
rename from core/bootstrap/image/image-tests.factor
rename to basis/bootstrap/image/image-tests.factor
diff --git a/core/bootstrap/image/image.factor b/basis/bootstrap/image/image.factor
similarity index 80%
rename from core/bootstrap/image/image.factor
rename to basis/bootstrap/image/image.factor
index aa7377adbf..9c99ed5cdb 100755
--- a/core/bootstrap/image/image.factor
+++ b/basis/bootstrap/image/image.factor
@@ -1,19 +1,19 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien arrays bit-arrays byte-arrays generic assocs
-hashtables assocs hashtables.private io kernel kernel.private
-math namespaces parser prettyprint sequences sequences.private
-strings sbufs vectors words quotations assocs system layouts
-splitting growable classes classes.builtin classes.tuple
+USING: alien arrays byte-arrays generic assocs hashtables assocs
+hashtables.private io kernel kernel.private math namespaces
+parser prettyprint sequences sequences.private strings sbufs
+vectors words quotations assocs system layouts splitting
+grouping growable classes classes.builtin classes.tuple
 classes.tuple.private words.private io.binary io.files vocabs
-vocabs.loader source-files definitions debugger float-arrays
+vocabs.loader source-files definitions debugger
 quotations.private sequences.private combinators
-io.encodings.binary math.order accessors ;
+io.encodings.binary math.order math.private accessors slots.private ;
 IN: bootstrap.image
 
 : my-arch ( -- arch )
-    cpu word-name
-    dup "ppc" = [ >r os word-name "-" r> 3append ] when ;
+    cpu name>> 
+    dup "ppc" = [ >r os name>> "-" r> 3append ] when ;
 
 : boot-image-name ( arch -- string )
     "boot." swap ".image" 3append ;
@@ -75,7 +75,7 @@ SYMBOL: objects
 
 : data-base 1024 ; inline
 
-: userenv-size 64 ; inline
+: userenv-size 70 ; inline
 
 : header-size 10 ; inline
 
@@ -85,15 +85,16 @@ SYMBOL: objects
 : 1-offset              8 ; inline
 : -1-offset             9 ; inline
 
-: array-start 2 bootstrap-cells object tag-number - ;
-: scan@ array-start bootstrap-cell - ;
-: wrapper@ bootstrap-cell object tag-number - ;
-: word-xt@ 8 bootstrap-cells object tag-number - ;
-: quot-array@ bootstrap-cell object tag-number - ;
-: quot-xt@ 3 bootstrap-cells object tag-number - ;
+SYMBOL: sub-primitives
+
+: make-jit ( quot rc rt offset -- quad )
+    { [ { } make ] [ ] [ ] [ ] } spread 4array ; inline
 
 : jit-define ( quot rc rt offset name -- )
-    >r { [ { } make ] [ ] [ ] [ ] } spread 4array r> set ;
+    >r make-jit r> set ; inline
+
+: define-sub-primitive ( quot rc rt offset word -- )
+    >r make-jit r> sub-primitives get set-at ;
 
 ! The image being constructed; a vector of word-size integers
 SYMBOL: image
@@ -118,6 +119,7 @@ SYMBOL: jit-primitive
 SYMBOL: jit-word-jump
 SYMBOL: jit-word-call
 SYMBOL: jit-push-literal
+SYMBOL: jit-push-immediate
 SYMBOL: jit-if-word
 SYMBOL: jit-if-jump
 SYMBOL: jit-dispatch-word
@@ -125,6 +127,7 @@ SYMBOL: jit-dispatch
 SYMBOL: jit-epilog
 SYMBOL: jit-return
 SYMBOL: jit-profiling
+SYMBOL: jit-declare-word
 
 ! Default definition for undefined words
 SYMBOL: undefined-quot
@@ -147,7 +150,9 @@ SYMBOL: undefined-quot
         { jit-epilog 33 }
         { jit-return 34 }
         { jit-profiling 35 }
-        { undefined-quot 37 }
+        { jit-push-immediate 36 }
+        { jit-declare-word 42 }
+        { undefined-quot 60 }
     } at header-size + ;
 
 : emit ( cell -- ) image get push ;
@@ -203,15 +208,15 @@ GENERIC: ' ( obj -- ptr )
 
 ! Bignums
 
-: bignum-bits bootstrap-cell-bits 2 - ;
+: bignum-bits ( -- n ) bootstrap-cell-bits 2 - ;
 
-: bignum-radix bignum-bits 2^ 1- ;
+: bignum-radix ( -- n ) bignum-bits 2^ 1- ;
 
 : bignum>seq ( n -- seq )
     #! n is positive or zero.
     [ dup 0 > ]
     [ [ bignum-bits neg shift ] [ bignum-radix bitand ] bi ]
-    [ ] unfold nip ;
+    [ ] produce nip ;
 
 : emit-bignum ( n -- )
     dup dup 0 < [ neg ] when bignum>seq
@@ -235,6 +240,12 @@ M: fixnum '
     bootstrap-most-positive-fixnum between?
     [ tag-fixnum ] [ >bignum ' ] if ;
 
+TUPLE: fake-bignum n ;
+
+C: <fake-bignum> fake-bignum
+
+M: fake-bignum ' n>> tag-fixnum ;
+
 ! Floats
 
 M: float '
@@ -248,18 +259,21 @@ M: float '
 
 ! Padded with fixnums for 8-byte alignment
 
-: t, t t-offset fixup ;
+: t, ( -- ) t t-offset fixup ;
 
 M: f '
     #! f is #define F RETAG(0,F_TYPE)
     drop \ f tag-number ;
 
-:  0,  0 >bignum '  0-offset fixup ;
-:  1,  1 >bignum '  1-offset fixup ;
-: -1, -1 >bignum ' -1-offset fixup ;
+:  0, ( -- )  0 >bignum '  0-offset fixup ;
+:  1, ( -- )  1 >bignum '  1-offset fixup ;
+: -1, ( -- ) -1 >bignum ' -1-offset fixup ;
 
 ! Words
 
+: word-sub-primitive ( word -- obj )
+    global [ target-word ] bind sub-primitives get at ;
+
 : emit-word ( word -- )
     [
         [ subwords [ emit-word ] each ]
@@ -267,16 +281,17 @@ M: f '
             [
                 {
                     [ hashcode , ]
-                    [ word-name , ]
-                    [ word-vocabulary , ]
-                    [ word-def , ]
-                    [ word-props , ]
+                    [ name>> , ]
+                    [ vocabulary>> , ]
+                    [ def>> , ]
+                    [ props>> , ]
+                    [ drop f , ]
+                    [ drop 0 , ] ! count
+                    [ word-sub-primitive , ]
+                    [ drop 0 , ] ! xt
+                    [ drop 0 , ] ! code
+                    [ drop 0 , ] ! profiling
                 } cleave
-                f ,
-                0 , ! count
-                0 , ! xt
-                0 , ! code
-                0 , ! profiling
             ] { } make [ ' ] map
         ] bi
         \ word type-number object tag-number
@@ -284,7 +299,7 @@ M: f '
     ] keep put-object ;
 
 : word-error ( word msg -- * )
-    [ % dup word-vocabulary % " " % word-name % ] "" make throw ;
+    [ % dup vocabulary>> % " " % name>> % ] "" make throw ;
 
 : transfer-word ( word -- word )
     [ target-word ] keep or ;
@@ -301,7 +316,7 @@ M: word ' ;
 ! Wrappers
 
 M: wrapper '
-    wrapped ' wrapper type-number object tag-number
+    wrapped>> ' wrapper type-number object tag-number
     [ emit ] emit-object ;
 
 ! Strings
@@ -341,18 +356,14 @@ M: byte-array '
         pad-bytes emit-bytes
     ] emit-object ;
 
-M: bit-array ' bit-array emit-dummy-array ;
-
-M: float-array ' float-array emit-dummy-array ;
-
 ! Tuples
 : (emit-tuple) ( tuple -- pointer )
-    [ tuple>array rest-slice ]
+    [ tuple-slots ]
     [ class transfer-word tuple-layout ] bi prefix [ ' ] map
     tuple type-number dup [ emit-seq ] emit-object ;
 
 : emit-tuple ( tuple -- pointer )
-    dup class word-name "tombstone" =
+    dup class name>> "tombstone" =
     [ [ (emit-tuple) ] cache-object ] [ (emit-tuple) ] if ;
 
 M: tuple ' emit-tuple ;
@@ -361,11 +372,11 @@ M: tuple-layout '
     [
         [
             {
-                [ layout-hashcode , ]
-                [ layout-class , ]
-                [ layout-size , ]
-                [ layout-superclasses , ]
-                [ layout-echelon , ]
+                [ hashcode>> , ]
+                [ class>> , ]
+                [ size>> , ]
+                [ superclasses>> , ]
+                [ echelon>> , ]
             } cleave
         ] { } make [ ' ] map
         \ tuple-layout type-number
@@ -373,9 +384,9 @@ M: tuple-layout '
     ] cache-object ;
 
 M: tombstone '
-    delegate
-    "((tombstone))" "((empty))" ? "hashtables.private" lookup
-    word-def first [ emit-tuple ] cache-object ;
+    state>> "((tombstone))" "((empty))" ?
+    "hashtables.private" lookup def>> first
+    [ emit-tuple ] cache-object ;
 
 ! Arrays
 M: array '
@@ -386,10 +397,10 @@ M: array '
 
 M: quotation '
     [
-        quotation-array '
+        array>> '
         quotation type-number object tag-number [
             emit ! array
-            f ' emit ! compiled?
+            f ' emit ! compiled>>
             0 emit ! xt
             0 emit ! code
         ] emit-object
@@ -404,7 +415,7 @@ M: quotation '
     [
         {
             dictionary source-files builtins
-            update-map class<=-cache
+            update-map implementors-map class<=-cache
             class-not-cache classes-intersect-cache class-and-cache
             class-or-cache
         } [ dup get swap bootstrap-word set ] each
@@ -419,6 +430,7 @@ M: quotation '
     \ if jit-if-word set
     \ dispatch jit-dispatch-word set
     \ do-primitive jit-primitive-word set
+    \ declare jit-declare-word set
     [ undefined ] undefined-quot set
     {
         jit-code-format
@@ -428,6 +440,7 @@ M: quotation '
         jit-word-jump
         jit-word-call
         jit-push-literal
+        jit-push-immediate
         jit-if-word
         jit-if-jump
         jit-dispatch-word
@@ -435,6 +448,7 @@ M: quotation '
         jit-epilog
         jit-return
         jit-profiling
+        jit-declare-word
         undefined-quot
     } [ emit-userenv ] each ;
 
diff --git a/core/bootstrap/image/summary.txt b/basis/bootstrap/image/summary.txt
similarity index 100%
rename from core/bootstrap/image/summary.txt
rename to basis/bootstrap/image/summary.txt
diff --git a/core/bootstrap/image/tags.txt b/basis/bootstrap/image/tags.txt
similarity index 100%
rename from core/bootstrap/image/tags.txt
rename to basis/bootstrap/image/tags.txt
diff --git a/core/cpu/arm/4/authors.txt b/basis/bootstrap/image/upload/authors.txt
similarity index 100%
rename from core/cpu/arm/4/authors.txt
rename to basis/bootstrap/image/upload/authors.txt
diff --git a/extra/bootstrap/image/upload/summary.txt b/basis/bootstrap/image/upload/summary.txt
similarity index 100%
rename from extra/bootstrap/image/upload/summary.txt
rename to basis/bootstrap/image/upload/summary.txt
diff --git a/extra/bootstrap/image/upload/upload.factor b/basis/bootstrap/image/upload/upload.factor
similarity index 89%
rename from extra/bootstrap/image/upload/upload.factor
rename to basis/bootstrap/image/upload/upload.factor
index 29c9d5b072..de13b4aed4 100755
--- a/extra/bootstrap/image/upload/upload.factor
+++ b/basis/bootstrap/image/upload/upload.factor
@@ -12,9 +12,9 @@ SYMBOL: upload-images-destination
   "slava@factorcode.org:/var/www/factorcode.org/newsite/images/latest/"
   or ;
 
-: checksums "checksums.txt" temp-file ;
+: checksums ( -- temp ) "checksums.txt" temp-file ;
 
-: boot-image-names images [ boot-image-name ] map ;
+: boot-image-names ( -- seq ) images [ boot-image-name ] map ;
 
 : compute-checksums ( -- )
     checksums ascii [
diff --git a/core/cpu/arm/allot/authors.txt b/basis/bootstrap/io/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/arm/allot/authors.txt
rename to basis/bootstrap/io/authors.txt
diff --git a/extra/bootstrap/io/io.factor b/basis/bootstrap/io/io.factor
similarity index 100%
rename from extra/bootstrap/io/io.factor
rename to basis/bootstrap/io/io.factor
diff --git a/extra/bootstrap/io/summary.txt b/basis/bootstrap/io/summary.txt
similarity index 100%
rename from extra/bootstrap/io/summary.txt
rename to basis/bootstrap/io/summary.txt
diff --git a/extra/bootstrap/math/math.factor b/basis/bootstrap/math/math.factor
similarity index 100%
rename from extra/bootstrap/math/math.factor
rename to basis/bootstrap/math/math.factor
diff --git a/extra/bootstrap/math/summary.txt b/basis/bootstrap/math/summary.txt
similarity index 100%
rename from extra/bootstrap/math/summary.txt
rename to basis/bootstrap/math/summary.txt
diff --git a/extra/bootstrap/random/random.factor b/basis/bootstrap/random/random.factor
similarity index 94%
rename from extra/bootstrap/random/random.factor
rename to basis/bootstrap/random/random.factor
index 5f5e11d913..3782d517cf 100755
--- a/extra/bootstrap/random/random.factor
+++ b/basis/bootstrap/random/random.factor
@@ -1,6 +1,7 @@
 USING: vocabs.loader sequences system
 random random.mersenne-twister combinators init
 namespaces random ;
+IN: bootstrap.random
 
 "random.mersenne-twister" require
 
diff --git a/basis/bootstrap/stage2.factor b/basis/bootstrap/stage2.factor
new file mode 100755
index 0000000000..58ea725d1e
--- /dev/null
+++ b/basis/bootstrap/stage2.factor
@@ -0,0 +1,107 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors init namespaces words io
+kernel.private math memory continuations kernel io.files
+io.backend system parser vocabs sequences prettyprint
+vocabs.loader combinators splitting source-files strings
+definitions assocs compiler.errors compiler.units
+math.parser generic sets debugger command-line ;
+IN: bootstrap.stage2
+
+SYMBOL: bootstrap-time
+
+: default-image-name ( -- string )
+    vm file-name os windows? [ "." split1 drop ] when
+    ".image" append resource-path ;
+
+: do-crossref ( -- )
+    "Cross-referencing..." print flush
+    H{ } clone crossref set-global
+    xref-words
+    xref-generics
+    xref-sources ;
+
+: load-components ( -- )
+    "include" "exclude"
+    [ get-global " " split harvest ] bi@
+    diff
+    [ "bootstrap." prepend require ] each ;
+
+: count-words ( pred -- )
+    all-words swap count number>string write ;
+
+: print-report ( time -- )
+    1000 /i
+    60 /mod swap
+    "Bootstrap completed in " write number>string write
+    " minutes and " write number>string write " seconds." print
+
+    [ compiled>> ] count-words " compiled words" print
+    [ symbol? ] count-words " symbol words" print
+    [ ] count-words " words total" print
+
+    "Bootstrapping is complete." print
+    "Now, you can run Factor:" print
+    vm write " -i=" write "output-image" get print flush ;
+
+[
+    ! We time bootstrap
+    millis >r
+
+    default-image-name "output-image" set-global
+
+    "math compiler threads help io tools ui ui.tools random unicode handbook" "include" set-global
+    "" "exclude" set-global
+
+    parse-command-line
+
+    "-no-crossref" cli-args member? [ do-crossref ] unless
+
+    ! Set dll paths
+    os wince? [ "windows.ce" require ] when
+    os winnt? [ "windows.nt" require ] when
+
+    "deploy-vocab" get [
+        "stage2: deployment mode" print
+    ] [
+        "listener" require
+        "none" require
+    ] if
+
+    [
+        load-components
+
+        run-bootstrap-init
+    ] with-compiler-errors
+    :errors
+
+    f error set-global
+    f error-continuation set-global
+
+    "deploy-vocab" get [
+        "tools.deploy.shaker" run
+    ] [
+        [
+            boot
+            do-init-hooks
+            [
+                parse-command-line
+                run-user-init
+                "run" get run
+                output-stream get [ stream-flush ] when*
+            ] [ print-error 1 exit ] recover
+        ] set-boot-quot
+
+        millis r> - dup bootstrap-time set-global
+        print-report
+
+        "output-image" get save-image-and-exit
+    ] if
+] [
+    :c
+    dup print-error flush
+    "listener" vocab
+    [ restarts. vocab-main execute ]
+    [ die ] if*
+    1 exit
+] recover
diff --git a/basis/bootstrap/threads/threads.factor b/basis/bootstrap/threads/threads.factor
new file mode 100644
index 0000000000..6c30489bb4
--- /dev/null
+++ b/basis/bootstrap/threads/threads.factor
@@ -0,0 +1,7 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+IN: bootstrap.threads
+
+USE: io.thread
+USE: threads
+USE: debugger.threads
diff --git a/core/cpu/arm/architecture/authors.txt b/basis/bootstrap/tools/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/arm/architecture/authors.txt
rename to basis/bootstrap/tools/authors.txt
diff --git a/extra/bootstrap/tools/summary.txt b/basis/bootstrap/tools/summary.txt
similarity index 100%
rename from extra/bootstrap/tools/summary.txt
rename to basis/bootstrap/tools/summary.txt
diff --git a/extra/bootstrap/tools/tools.factor b/basis/bootstrap/tools/tools.factor
similarity index 90%
rename from extra/bootstrap/tools/tools.factor
rename to basis/bootstrap/tools/tools.factor
index 670bca4903..c6ec7f0b99 100755
--- a/extra/bootstrap/tools/tools.factor
+++ b/basis/bootstrap/tools/tools.factor
@@ -1,6 +1,8 @@
 USING: vocabs.loader sequences ;
+IN: bootstrap.tools
 
 {
+    "inspector"
     "bootstrap.image"
     "tools.annotations"
     "tools.crossref"
diff --git a/core/cpu/arm/assembler/authors.txt b/basis/bootstrap/ui/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/arm/assembler/authors.txt
rename to basis/bootstrap/ui/authors.txt
diff --git a/extra/bootstrap/ui/summary.txt b/basis/bootstrap/ui/summary.txt
similarity index 100%
rename from extra/bootstrap/ui/summary.txt
rename to basis/bootstrap/ui/summary.txt
diff --git a/core/cpu/arm/authors.txt b/basis/bootstrap/ui/tools/authors.txt
similarity index 100%
rename from core/cpu/arm/authors.txt
rename to basis/bootstrap/ui/tools/authors.txt
diff --git a/extra/bootstrap/ui/tools/summary.txt b/basis/bootstrap/ui/tools/summary.txt
similarity index 100%
rename from extra/bootstrap/ui/tools/summary.txt
rename to basis/bootstrap/ui/tools/summary.txt
diff --git a/extra/bootstrap/ui/tools/tools.factor b/basis/bootstrap/ui/tools/tools.factor
similarity index 100%
rename from extra/bootstrap/ui/tools/tools.factor
rename to basis/bootstrap/ui/tools/tools.factor
diff --git a/extra/bootstrap/ui/ui.factor b/basis/bootstrap/ui/ui.factor
similarity index 95%
rename from extra/bootstrap/ui/ui.factor
rename to basis/bootstrap/ui/ui.factor
index 5aa7683efc..0cdf3137f6 100644
--- a/extra/bootstrap/ui/ui.factor
+++ b/basis/bootstrap/ui/ui.factor
@@ -1,5 +1,6 @@
 USING: alien namespaces system combinators kernel sequences
 vocabs vocabs.loader ;
+IN: bootstrap.ui
 
 "bootstrap.compiler" vocab [
     "ui-backend" get [
diff --git a/basis/bootstrap/unicode/unicode.factor b/basis/bootstrap/unicode/unicode.factor
new file mode 100755
index 0000000000..1046d41bdc
--- /dev/null
+++ b/basis/bootstrap/unicode/unicode.factor
@@ -0,0 +1,5 @@
+USING: strings.parser kernel namespaces unicode.data ;
+IN: bootstrap.unicode
+
+[ name>char [ "Invalid character" throw ] unless* ]
+name>char-hook set-global
diff --git a/core/boxes/boxes-docs.factor b/basis/boxes/boxes-docs.factor
similarity index 100%
rename from core/boxes/boxes-docs.factor
rename to basis/boxes/boxes-docs.factor
diff --git a/core/boxes/boxes-tests.factor b/basis/boxes/boxes-tests.factor
similarity index 100%
rename from core/boxes/boxes-tests.factor
rename to basis/boxes/boxes-tests.factor
diff --git a/core/boxes/boxes.factor b/basis/boxes/boxes.factor
similarity index 100%
rename from core/boxes/boxes.factor
rename to basis/boxes/boxes.factor
diff --git a/extra/calendar/authors.txt b/basis/calendar/authors.txt
similarity index 100%
rename from extra/calendar/authors.txt
rename to basis/calendar/authors.txt
diff --git a/basis/calendar/calendar-docs.factor b/basis/calendar/calendar-docs.factor
new file mode 100644
index 0000000000..62ff4ad517
--- /dev/null
+++ b/basis/calendar/calendar-docs.factor
@@ -0,0 +1,606 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays kernel math strings help.markup help.syntax
+math.order ;
+IN: calendar
+
+HELP: duration
+{ $description "A duration is a period of time years, months, days, hours, minutes, and seconds.  All duration slots can store " { $link real } " numbers. Compare two durations with the " { $link <=> } " word." } ;
+
+HELP: timestamp
+{ $description "A timestamp is a date and a time with a timezone offset.  Timestamp slots must store integers except for " { $snippet "seconds" } ", which stores reals, and " { $snippet "gmt-offset" } ", which stores a " { $link duration } ". Compare two duarionts with the " { $link <=> } " word." } ;
+
+{ timestamp duration } related-words
+
+HELP: gmt-offset-duration
+{ $values { "duration" duration } }
+{ $description "Returns a " { $link duration } " object with the GMT offset returned by " { $link gmt-offset } "." } ;
+
+HELP: <date>
+{ $values { "year" integer } { "month" integer } { "day" integer } { "timestamp" timestamp } }
+{ $description "Returns a timestamp object representing the start of the specified day in your current timezone." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "2010 12 25 <date> ."
+               "T{ timestamp\n    { year 2010 }\n    { month 12 }\n    { day 25 }\n    { gmt-offset T{ duration { hour -5 } } }\n}"
+    }
+} ;
+
+HELP: month-names
+{ $values { "array" array } }
+{ $description "Returns an array with the English names of all the months." }
+{ $warning "Do not use this array for looking up a month name directly. Use month-name instead." } ;
+
+HELP: month-name
+{ $values { "n" integer } { "string" string } }
+{ $description "Looks up the month name and returns it as a string.  January has an index of 1 instead of zero." } ;
+
+HELP: month-abbreviations
+{ $values { "array" array } }
+{ $description "Returns an array with the English abbreviated names of all the months." }
+{ $warning "Do not use this array for looking up a month name directly. Use month-abbreviation instead." } ;
+
+HELP: month-abbreviation
+{ $values { "n" integer } { "string" string } }
+{ $description "Looks up the abbreviated month name and returns it as a string.  January has an index of 1 instead of zero." } ;
+
+
+HELP: day-names
+{ $values { "array" array } }
+{ $description "Returns an array with the English names of the days of the week." } ;
+
+HELP: day-name
+{ $values { "n" integer } { "string" string } }
+{ $description "Looks up the day name and returns it as a string." } ;
+
+HELP: day-abbreviations2
+{ $values { "array" array } }
+{ $description "Returns an array with the abbreviated English names of the days of the week.  This abbreviation is two characters long." } ;
+
+HELP: day-abbreviation2
+{ $values { "n" integer } { "string" string } }
+{ $description "Looks up the abbreviated day name and returns it as a string. This abbreviation is two characters long." } ;
+
+HELP: day-abbreviations3
+{ $values { "array" array } }
+{ $description "Returns an array with the abbreviated English names of the days of the week.  This abbreviation is three characters long." } ;
+
+HELP: day-abbreviation3
+{ $values { "n" integer } { "string" string } }
+{ $description "Looks up the abbreviated day name and returns it as a string. This abbreviation is three characters long." } ;
+
+{
+    day-name day-names
+    day-abbreviation2 day-abbreviations2
+    day-abbreviation3 day-abbreviations3
+} related-words
+
+HELP: average-month
+{ $values { "ratio" ratio } }
+{ $description "The length of an average month averaged over 400 years. Used internally for adding an arbitrary real number of months to a timestamp." } ;
+
+HELP: months-per-year
+{ $values { "integer" integer } }
+{ $description "Returns the number of months in a year." } ;
+
+HELP: days-per-year
+{ $values { "ratio" ratio } }
+{ $description "Returns the number of days in a year averaged over 400 years. Used internally for adding an arbitrary real number of days to a timestamp." } ;
+
+HELP: hours-per-year
+{ $values { "ratio" ratio } }
+{ $description "Returns the number of hours in a year averaged over 400 years. Used internally for adding an arbitrary real number of hours to a timestamp." } ;
+
+HELP: minutes-per-year
+{ $values { "ratio" ratio } }
+{ $description "Returns the number of minutes in a year averaged over 400 years. Used internally for adding an arbitrary real number of minutes to a timestamp." } ;
+
+HELP: seconds-per-year
+{ $values { "integer" integer } }
+{ $description "Returns the number of seconds in a year averaged over 400 years. Used internally for adding an arbitrary real number of seconds to a timestamp." } ;
+
+HELP: julian-day-number
+{ $values { "year" integer } { "month" integer } { "day" integer } { "n" integer } }
+{ $description "Calculates the Julian day number from a year, month, and day.  The difference between two Julian day numbers is the number of days that have elapsed between the two corresponding dates." }
+{ $warning "Not valid before year -4800 BCE." } ;
+
+HELP: julian-day-number>date
+{ $values { "n" integer } { "year" integer } { "month" integer } { "day" integer } }
+{ $description "Converts from a Julian day number back to a year, month, and day." } ;
+{ julian-day-number julian-day-number>date } related-words
+
+HELP: >date<
+{ $values { "timestamp" timestamp } { "year" integer } { "month" integer } { "day" integer } }
+{ $description "Explodes a " { $snippet "timestamp" } " into its year, month, and day components." }
+{ $examples { $example "USING: arrays calendar prettyprint ;"
+                       "2010 8 24 <date> >date< 3array ."
+                       "{ 2010 8 24 }"
+                       }
+} ;
+
+HELP: >time<
+{ $values { "timestamp" timestamp } { "hour" integer } { "minute" integer } { "second" integer } }
+{ $description "Explodes a " { $snippet "timestamp" } " into its hour, minute, and second components." }
+{ $examples { $example "USING: arrays calendar prettyprint ;"
+                       "now noon >time< 3array ."
+                       "{ 12 0 0 }"
+                       }
+} ;
+
+{ >date< >time< } related-words
+
+HELP: instant
+{ $values { "duration" duration } }
+{ $description "Pushes a " { $snippet "duration" } " of zero seconds." } ;
+
+HELP: years
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of years." } ;
+
+HELP: months
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of months." } ;
+
+HELP: days
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of days." } ;
+
+HELP: weeks
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of weeks." } ;
+
+HELP: hours
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of hours." } ;
+
+HELP: minutes
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of minutes." } ;
+
+HELP: seconds
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of seconds." } ;
+
+HELP: milliseconds
+{ $values { "x" number } { "duration" duration } }
+{ $description "Creates a duration object with the specified number of milliseconds." } ;
+
+{ years months days hours minutes seconds milliseconds } related-words
+
+HELP: leap-year?
+{ $values { "obj" object } { "?" "a boolean" } }
+{ $description "Returns " { $link t } " if the object represents a leap year." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "2008 leap-year? ."
+               "t"
+    }
+    { $example "USING: calendar prettyprint ;"
+               "2010 1 1 <date> leap-year? ."
+               "f"
+    }
+} ;
+
+HELP: time+
+{ $values { "time1" "timestamp or duration" } { "time2" "timestamp or duration" } { "time3" "timestamp or duration" } }
+{ $description "Adds two durations to produce a duration or adds a timestamp and a duration to produce a timestamp. The calculation takes timezones into account." }
+{ $examples
+    { $example "USING: calendar math.order prettyprint ;"
+               "10 months 2 months time+ 1 years <=> ."
+               "+eq+"
+    }
+    { $example "USING: accessors calendar math.order prettyprint ;"
+               "2010 1 1 <date> 3 days time+ day>> ."
+               "4"
+    }
+} ;
+
+HELP: duration>years
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in years." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "6 months duration>years ."
+               "1/2"
+    }
+} ;
+
+HELP: duration>months
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in months." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "30 days duration>months ."
+               "16000/16233"
+    }
+} ;
+
+HELP: duration>days
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in days." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "6 hours duration>days ."
+               "1/4"
+    }
+} ;
+
+HELP: duration>hours
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in hours." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "3/4 days duration>hours ."
+               "18"
+    }
+} ;
+HELP: duration>minutes
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in minutes." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "6 hours duration>minutes ."
+               "360"
+    }
+} ;
+HELP: duration>seconds
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in seconds." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "6 minutes duration>seconds ."
+               "360"
+    }
+} ;
+
+HELP: duration>milliseconds
+{ $values { "duration" duration } { "x" number } }
+{ $description "Calculates the length of a duration in milliseconds." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "6 seconds duration>milliseconds ."
+               "6000"
+    }
+} ;
+
+{ duration>years duration>months duration>days duration>hours duration>minutes duration>seconds duration>milliseconds } related-words
+
+
+HELP: time-
+{ $values { "time1" "timestamp or duration" } { "time2" "timestamp or duration" } { "time3" "timestamp or duration" } }
+{ $description "Subtracts two durations to produce a duration or subtracts a duration from a timestamp to produce a timestamp. The calculation takes timezones into account." }
+{ $examples
+    { $example "USING: calendar math.order prettyprint ;"
+               "10 months 2 months time- 8 months <=> ."
+               "+eq+"
+    }
+    { $example "USING: accessors calendar math.order prettyprint ;"
+               "2010 1 1 <date> 3 days time- day>> ."
+               "29"
+    }
+} ;
+
+HELP: convert-timezone
+{ $values { "timestamp" timestamp } { "duration" duration } { "timestamp" timestamp } }
+{ $description "Converts the " { $snippet "timestamp" } "'s " { $snippet "gmt-offset" } " to the GMT offset represented by the " { $snippet "duration" } "." }
+{ $examples
+    { $example "USING: accessors calendar prettyprint ;"
+               "gmt noon instant -5 >>hour convert-timezone gmt-offset>> hour>> ."
+               "-5"
+    }
+} ;
+
+HELP: >local-time
+{ $values { "timestamp" timestamp } { "timestamp" timestamp } }
+{ $description "Converts the " { $snippet "timestamp" } " to the timezone of your computer." }
+{ $examples
+    { $example "USING: accessors calendar kernel prettyprint ;"
+               "now gmt >local-time [ gmt-offset>> ] bi@ = ."
+               "t"
+    }
+} ;
+
+HELP: >gmt
+{ $values { "timestamp" timestamp } { "timestamp" timestamp } }
+{ $description "Converts the " { $snippet "timestamp" } " to the GMT timezone." }
+{ $examples
+    { $example "USING: accessors calendar kernel prettyprint ;"
+               "now >gmt gmt-offset>> hour>> ."
+               "0"
+    }
+} ;
+
+HELP: time*
+{ $values { "obj1" object } { "obj2" object } { "obj3" object } }
+{ $description "Multiplies each time slot of a timestamp or duration by a number and make a new duration from the result.  Used in the implementation of " { $link before } "." } ;
+{ time+ time- time* } related-words
+
+HELP: before
+{ $values { "duration" duration } { "-duration" duration } }
+{ $description "Negates a duration." }
+{ $examples
+    { $example "USING: accessors calendar prettyprint ;"
+               "3 hours before now noon time+ hour>> ."
+               "9"
+    }
+} ;
+
+HELP: <zero>
+{ $values { "timestamp" timestamp } }
+{ $description "Outputs a zero timestamp that consists of zeros for every slot.  Used to see if timestamps are valid." } ;
+
+HELP: valid-timestamp?
+{ $values { "timestamp" timestamp } { "?" "a boolean" } }
+{ $description "Tests if a timestamp is valid or not." } ;
+
+HELP: unix-1970
+{ $values { "timestamp" timestamp } }
+{ $description "Outputs the beginning of UNIX time, or midnight, January 1, 1970." } ;
+
+HELP: millis>timestamp
+{ $values { "x" number } { "timestamp" timestamp } }
+{ $description "Converts a number of milliseconds into a timestamp value in GMT time." }
+{ $examples
+    { $example "USING: accessors calendar prettyprint ;"
+               "1000 millis>timestamp year>> ."
+               "1970"
+    }
+} ;
+
+HELP: gmt
+{ $values { "timestamp" timestamp } }
+{ $description "Outputs the time right now, but in the GMT timezone." } ;
+
+{ gmt now } related-words
+
+HELP: now
+{ $values { "timestamp" timestamp } }
+{ $description "Outputs the time right now in your computer's timezone." }
+{ $examples
+    { $unchecked-example "USING: calendar prettyprint ;"
+        "now ."
+         "T{ timestamp f 2008 9 1 16 38 24+801/1000 T{ duration f 0 0 0 -5 0 0 } }"
+    }
+} ;
+
+HELP: hence
+{ $values { "duration" duration } { "timestamp" timestamp } }
+{ $description "Computes a time in the future that is the " { $snippet "duration" } " added to the result of " { $link now } "." }
+{ $examples
+    { $unchecked-example
+       "USING: calendar prettyprint ;"
+       "10 hours hence ."
+       "T{ timestamp f 2008 9 2 2 47 45+943/1000 T{ duration f 0 0 0 -5 0 0 } }"
+    }
+} ;
+
+HELP: ago
+{ $values { "duration" duration } { "timestamp" timestamp } }
+{ $description "Computes a time in the past that is the " { $snippet "duration" } " subtracted from the result of " { $link now } "." }
+{ $examples
+    { $unchecked-example
+       "USING: calendar prettyprint ;"
+       "3 weeks ago ."
+       "T{ timestamp f 2008 8 11 16 49 52+99/500 T{ duration f 0 0 0 -5 0 0 } }"
+    }
+} ;
+
+HELP: zeller-congruence
+{ $values { "year" integer } { "month" integer } { "day" integer } { "n" integer } }
+{ $description "An implementation of an algorithm that computes the day of the week given a date. Days are indexed starting from Sunday, which is index 0." }
+{ $notes "User code should use the " { $link day-of-week } " word, which takes a " { $snippet "timestamp" } " instead of integers." } ;
+
+HELP: days-in-year
+{ $values { "obj" "a timestamp or an integer" } { "n" integer } } 
+{ $description "Calculates the number of days in a given year." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "2004 days-in-year ."
+               "366"
+    }
+} ;
+
+HELP: days-in-month
+{ $values { "timestamp" timestamp } { "n" integer } }
+{ $description "Calculates the number of days in a given month." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "2008 8 24 <date> days-in-month ."
+               "31"
+    }
+} ;
+
+HELP: day-of-week
+{ $values { "timestamp" timestamp } { "n" integer } }
+{ $description "Calculates the index of the day of the week. Sunday will result in an index of 0." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "now sunday day-of-week ."
+               "0"
+    }
+} ;
+
+HELP: day-of-year
+{ $values { "timestamp" timestamp } { "n" integer } }
+{ $description "Calculates the day of the year, resulting in a number from 1 to 366 (leap years)." }
+{ $examples
+    { $example "USING: calendar prettyprint ;"
+               "2008 1 4 <date> day-of-year ."
+               "4"
+    }
+} ;
+
+HELP: sunday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Sunday from the current week, which starts on a Sunday." } ;
+
+HELP: monday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Monday from the current week, which starts on a Sunday." } ;
+
+HELP: tuesday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Tuesday from the current week, which starts on a Sunday." } ;
+
+HELP: wednesday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Wednesday from the current week, which starts on a Sunday." } ;
+
+HELP: thursday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Thursday from the current week, which starts on a Sunday." } ;
+
+HELP: friday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Friday from the current week, which starts on a Sunday." } ;
+
+HELP: saturday
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns the Saturday from the current week, which starts on a Sunday." } ;
+
+{ sunday monday tuesday wednesday thursday friday saturday } related-words
+
+HELP: midnight
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns a timestamp that represents today at midnight, or the beginning of the day." } ;
+
+HELP: noon
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Returns a timestamp that represents today at noon, or the middle of the day." } ;
+
+HELP: beginning-of-month
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Outputs a timestamp with the day set to one." } ;
+
+HELP: beginning-of-week
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Outputs a timestamp where the day of the week is Sunday." } ;
+
+HELP: beginning-of-year
+{ $values { "timestamp" timestamp } { "new-timestamp" timestamp } }
+{ $description "Outputs a timestamp with the month and day set to one, or January 1 of the input timestamp." } ;
+
+HELP: time-since-midnight
+{ $values { "timestamp" timestamp } { "duration" duration } }
+{ $description "Calculates a " { $snippet "duration" } " that represents the elapsed time since midnight of the input " { $snippet "timestamp" } "." } ;
+
+ARTICLE: "calendar" "Calendar"
+"The two data types used throughout the calendar library:"
+{ $subsection timestamp }
+{ $subsection duration }
+"Durations represent spans of time:"
+{ $subsection "using-durations" }
+"Arithmetic on timestamps and durations:"
+{ $subsection "timestamp-arithmetic" }
+"Getting the current timestamp:"
+{ $subsection now }
+{ $subsection gmt }
+"Converting between timestamps:"
+{ $subsection >local-time }
+{ $subsection >gmt }
+"Converting between timezones:"
+{ $subsection convert-timezone }
+"Timestamps relative to each other:"
+{ $subsection "relative-timestamps" }
+"Operations on units of time:"
+{ $subsection "years" }
+{ $subsection "months" }
+{ $subsection "days" }
+"Meta-data about the calendar:"
+{ $subsection "calendar-facts" }
+;
+
+ARTICLE: "timestamp-arithmetic" "Timestamp arithmetic"
+"Adding timestamps and durations, or durations and durations:"
+{ $subsection time+ }
+"Subtracting:"
+{ $subsection time- }
+"Element-wise multiplication:"
+{ $subsection time* } ;
+
+ARTICLE: "using-durations" "Using durations"
+"Creating a duration object:"
+{ $subsection years }
+{ $subsection months }
+{ $subsection weeks }
+{ $subsection days }
+{ $subsection hours }
+{ $subsection minutes }
+{ $subsection seconds }
+{ $subsection milliseconds }
+{ $subsection instant }
+"Converting a duration to a number:"
+{ $subsection duration>years }
+{ $subsection duration>months }
+{ $subsection duration>days }
+{ $subsection duration>hours }
+{ $subsection duration>minutes }
+{ $subsection duration>seconds }
+{ $subsection duration>milliseconds } ;
+
+ARTICLE: "relative-timestamps" "Relative timestamps"
+"In the future:"
+{ $subsection hence }
+"In the past:"
+{ $subsection ago }
+"Invert a duration:"
+{ $subsection before }
+"Days of the week relative to " { $link now } ":"
+{ $subsection sunday }
+{ $subsection monday }
+{ $subsection tuesday }
+{ $subsection wednesday }
+{ $subsection thursday }
+{ $subsection friday }
+{ $subsection saturday }
+"New timestamps relative to calendar events:"
+{ $subsection beginning-of-year }
+{ $subsection beginning-of-month }
+{ $subsection beginning-of-week }
+{ $subsection midnight }
+{ $subsection noon }
+;
+
+ARTICLE: "days" "Day operations"
+"Naming days:"
+{ $subsection day-abbreviation2 }
+{ $subsection day-abbreviations2 }
+{ $subsection day-abbreviation3 }
+{ $subsection day-abbreviations3 }
+{ $subsection day-name }
+{ $subsection day-names }
+"Calculating a Julian day number:"
+{ $subsection julian-day-number }
+"Calculate a timestamp:"
+{ $subsection julian-day-number>date }
+;
+
+ARTICLE: "calendar-facts" "Calendar facts"
+"Calendar facts:"
+{ $subsection average-month }
+{ $subsection months-per-year }
+{ $subsection days-per-year }
+{ $subsection hours-per-year }
+{ $subsection minutes-per-year }
+{ $subsection seconds-per-year }
+{ $subsection days-in-month }
+{ $subsection day-of-year }
+{ $subsection day-of-week }
+;
+
+ARTICLE: "years" "Year operations"
+"Leap year predicate:"
+{ $subsection leap-year? }
+"Find the number of days in a year:"
+{ $subsection days-in-year }
+;
+
+ARTICLE: "months" "Month operations"
+"Naming months:"
+{ $subsection month-name }
+{ $subsection month-names }
+{ $subsection month-abbreviation }
+{ $subsection month-abbreviations }
+;
+
+ABOUT: "calendar"
diff --git a/extra/calendar/calendar-tests.factor b/basis/calendar/calendar-tests.factor
similarity index 98%
rename from extra/calendar/calendar-tests.factor
rename to basis/calendar/calendar-tests.factor
index 7d9716ae1a..995bd23c09 100755
--- a/extra/calendar/calendar-tests.factor
+++ b/basis/calendar/calendar-tests.factor
@@ -33,8 +33,8 @@ IN: calendar.tests
 
 [ t ] [ 2006 10 10 0 0 0 instant <timestamp> 10 minutes time+
         2006 10 10 0 10 0 instant <timestamp> = ] unit-test
-[ t ] [ 2006 10 10 0 0 0 instant <timestamp> 10.5 minutes time+
-        2006 10 10 0 10 30 instant <timestamp> = ] unit-test
+[ +eq+ ] [ 2006 10 10 0 0 0 instant <timestamp> 10.5 minutes time+
+        2006 10 10 0 10 30 instant <timestamp> <=> ] unit-test
 [ t ] [ 2006 10 10 0 0 0 instant <timestamp> 3/4 minutes time+
         2006 10 10 0 0 45 instant <timestamp> = ] unit-test
 [ t ] [ 2006 10 10 0 0 0 instant <timestamp> -3/4 minutes time+
diff --git a/extra/calendar/calendar.factor b/basis/calendar/calendar.factor
similarity index 62%
rename from extra/calendar/calendar.factor
rename to basis/calendar/calendar.factor
index 0e21876fe9..c2c386a790 100755
--- a/extra/calendar/calendar.factor
+++ b/basis/calendar/calendar.factor
@@ -1,63 +1,94 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-
 USING: arrays kernel math math.functions namespaces sequences
-strings system vocabs.loader calendar.backend threads
-accessors combinators locals classes.tuple math.order ;
+strings system vocabs.loader threads accessors combinators
+locals classes.tuple math.order summary
+combinators.short-circuit ;
 IN: calendar
 
-TUPLE: timestamp year month day hour minute second gmt-offset ;
+HOOK: gmt-offset os ( -- hours minutes seconds )
 
-C: <timestamp> timestamp
-
-TUPLE: duration year month day hour minute second ;
+TUPLE: duration
+    { year real }
+    { month real }
+    { day real }
+    { hour real }
+    { minute real }
+    { second real } ;
 
 C: <duration> duration
 
+TUPLE: timestamp
+    { year integer }
+    { month integer }
+    { day integer }
+    { hour integer }
+    { minute integer }
+    { second real }
+    { gmt-offset duration } ;
+
+C: <timestamp> timestamp
+
 : gmt-offset-duration ( -- duration )
     0 0 0 gmt-offset <duration> ;
 
 : <date> ( year month day -- timestamp )
     0 0 0 gmt-offset-duration <timestamp> ;
 
-: month-names
+ERROR: not-a-month n ;
+M: not-a-month summary
+    drop "Months are indexed starting at 1" ;
+
+<PRIVATE
+: check-month ( n -- n )
+    dup zero? [ not-a-month ] when ;
+PRIVATE>
+
+: month-names ( -- array )
     {
-        "Not a month" "January" "February" "March" "April" "May" "June"
+        "January" "February" "March" "April" "May" "June"
         "July" "August" "September" "October" "November" "December"
     } ;
 
-: month-abbreviations
+: month-name ( n -- string )
+    check-month 1- month-names nth ;
+
+: month-abbreviations ( -- array )
     {
-        "Not a month"
-        "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"
+        "Jan" "Feb" "Mar" "Apr" "May" "Jun"
+        "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"
     } ;
 
-: day-names
+: month-abbreviation ( n -- string )
+    check-month 1- month-abbreviations nth ;
+
+: day-counts { 0 31 28 31 30 31 30 31 31 30 31 30 31 } ; inline
+
+: day-names ( -- array )
     {
         "Sunday" "Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday"
     } ;
 
-: day-abbreviations2 { "Su" "Mo" "Tu" "We" "Th" "Fr" "Sa" } ;
-: day-abbreviations3 { "Sun" "Mon" "Tue" "Wed" "Thu" "Fri" "Sat" } ;
+: day-name ( n -- string ) day-names nth ;
 
-: average-month 30+5/12 ; inline
-: months-per-year 12 ; inline
-: days-per-year 3652425/10000 ; inline
-: hours-per-year 876582/100 ; inline
-: minutes-per-year 5259492/10 ; inline
-: seconds-per-year 31556952 ; inline
+: day-abbreviations2 ( -- array )
+    { "Su" "Mo" "Tu" "We" "Th" "Fr" "Sa" } ;
 
-<PRIVATE
+: day-abbreviation2 ( n -- string )
+    day-abbreviations2 nth ;
 
-SYMBOL: a
-SYMBOL: b
-SYMBOL: c
-SYMBOL: d
-SYMBOL: e
-SYMBOL: y
-SYMBOL: m
+: day-abbreviations3 ( -- array )
+    { "Sun" "Mon" "Tue" "Wed" "Thu" "Fri" "Sat" } ;
 
-PRIVATE>
+: day-abbreviation3 ( n -- string )
+    day-abbreviations3 nth ;
+
+: average-month ( -- ratio ) 30+5/12 ; inline
+: months-per-year ( -- integer ) 12 ; inline
+: days-per-year ( -- ratio ) 3652425/10000 ; inline
+: hours-per-year ( -- ratio ) 876582/100 ; inline
+: minutes-per-year ( -- ratio ) 5259492/10 ; inline
+: seconds-per-year ( -- integer ) 31556952 ; inline
 
 :: julian-day-number ( year month day -- n )
     #! Returns a composite date number
@@ -89,15 +120,15 @@ PRIVATE>
 : >time< ( timestamp -- hour minute second )
     [ hour>> ] [ minute>> ] [ second>> ] tri ;
 
-: instant ( -- dt ) 0 0 0 0 0 0 <duration> ;
-: years ( n -- dt ) instant swap >>year ;
-: months ( n -- dt ) instant swap >>month ;
-: days ( n -- dt ) instant swap >>day ;
-: weeks ( n -- dt ) 7 * days ;
-: hours ( n -- dt ) instant swap >>hour ;
-: minutes ( n -- dt ) instant swap >>minute ;
-: seconds ( n -- dt ) instant swap >>second ;
-: milliseconds ( n -- dt ) 1000 / seconds ;
+: instant ( -- duration ) 0 0 0 0 0 0 <duration> ;
+: years ( x -- duration ) instant clone swap >>year ;
+: months ( x -- duration ) instant clone swap >>month ;
+: days ( x -- duration ) instant clone swap >>day ;
+: weeks ( x -- duration ) 7 * days ;
+: hours ( x -- duration ) instant clone swap >>hour ;
+: minutes ( x -- duration ) instant clone swap >>minute ;
+: seconds ( x -- duration ) instant clone swap >>second ;
+: milliseconds ( x -- duration ) 1000 / seconds ;
 
 GENERIC: leap-year? ( obj -- ? )
 
@@ -124,10 +155,12 @@ GENERIC: +second ( timestamp x -- timestamp )
     [ floor >integer ] keep over - ;
 
 : adjust-leap-year ( timestamp -- timestamp )
-    dup day>> 29 = over month>> 2 = pick leap-year? not and and
+    dup
+    { [ day>> 29 = ] [ month>> 2 = ] [ leap-year? not ] } 1&&
     [ 3 >>month 1 >>day ] when ;
 
-: unless-zero >r dup zero? [ drop ] r> if ; inline
+: unless-zero ( n quot -- )
+    [ dup zero? [ drop ] ] dip if ; inline
 
 M: integer +year ( timestamp n -- timestamp )
     [ [ + ] curry change-year adjust-leap-year ] unless-zero ;
@@ -189,7 +222,7 @@ M: number +second ( timestamp n -- timestamp )
 
 PRIVATE>
 
-GENERIC# time+ 1 ( time dt -- time )
+GENERIC# time+ 1 ( time1 time2 -- time3 )
 
 M: timestamp time+
     >r clone r> (time+) drop ;
@@ -207,8 +240,8 @@ M: duration time+
         2drop <duration>
     ] if ;
 
-: dt>years ( dt -- x )
-    #! Uses average month/year length since dt loses calendar
+: duration>years ( duration -- x )
+    #! Uses average month/year length since duration loses calendar
     #! data
     0 swap
     {
@@ -220,16 +253,16 @@ M: duration time+
         [ second>> seconds-per-year / + ]
     } cleave ;
 
-M: duration <=> [ dt>years ] compare ;
+M: duration <=> [ duration>years ] compare ;
 
-: dt>months ( dt -- x ) dt>years months-per-year * ;
-: dt>days ( dt -- x ) dt>years days-per-year * ;
-: dt>hours ( dt -- x ) dt>years hours-per-year * ;
-: dt>minutes ( dt -- x ) dt>years minutes-per-year * ;
-: dt>seconds ( dt -- x ) dt>years seconds-per-year * ;
-: dt>milliseconds ( dt -- x ) dt>seconds 1000 * ;
+: duration>months ( duration -- x ) duration>years months-per-year * ;
+: duration>days ( duration -- x ) duration>years days-per-year * ;
+: duration>hours ( duration -- x ) duration>years hours-per-year * ;
+: duration>minutes ( duration -- x ) duration>years minutes-per-year * ;
+: duration>seconds ( duration -- x ) duration>years seconds-per-year * ;
+: duration>milliseconds ( duration -- x ) duration>seconds 1000 * ;
 
-GENERIC: time- ( time1 time2 -- time )
+GENERIC: time- ( time1 time2 -- time3 )
 
 : convert-timezone ( timestamp duration -- timestamp )
     over gmt-offset>> over = [ drop ] [
@@ -267,22 +300,23 @@ M: timestamp time-
         } 2cleave <duration>
     ] if ;
 
-: before ( dt -- -dt )
+: before ( duration -- -duration )
     -1 time* ;
 
 M: duration time-
     before time+ ;
 
-: <zero> 0 0 0 0 0 0 instant <timestamp> ;
+: <zero> ( -- timestamp )
+    0 0 0 0 0 0 instant <timestamp> ;
 
 : valid-timestamp? ( timestamp -- ? )
     clone instant >>gmt-offset
     dup <zero> time- <zero> time+ = ;
 
 : unix-1970 ( -- timestamp )
-    1970 1 1 0 0 0 instant <timestamp> ; foldable
+    1970 1 1 0 0 0 instant <timestamp> ;
 
-: millis>timestamp ( n -- timestamp )
+: millis>timestamp ( x -- timestamp )
     >r unix-1970 r> milliseconds time+ ;
 
 : timestamp>millis ( timestamp -- n )
@@ -293,11 +327,8 @@ M: duration time-
     unix-1970 millis milliseconds time+ ;
 
 : now ( -- timestamp ) gmt >local-time ;
-
-: from-now ( dt -- timestamp ) now swap time+ ;
-: ago ( dt -- timestamp ) now swap time- ;
-
-: day-counts { 0 31 28 31 30 31 30 31 31 30 31 30 31 } ; inline
+: hence ( duration -- timestamp ) now swap time+ ;
+: ago ( duration -- timestamp ) now swap time- ;
 
 : zeller-congruence ( year month day -- n )
     #! Zeller Congruence
@@ -313,77 +344,63 @@ GENERIC: days-in-year ( obj -- n )
 M: integer days-in-year ( year -- n ) leap-year? 366 365 ? ;
 M: timestamp days-in-year ( timestamp -- n ) year>> days-in-year ;
 
-GENERIC: days-in-month ( obj -- n )
+: (days-in-month) ( year month -- n )
+    dup 2 = [ drop leap-year? 29 28 ? ] [ nip day-counts nth ] if ;
 
-M: array days-in-month ( obj -- n )
-    first2 dup 2 = [
-        drop leap-year? 29 28 ?
-    ] [
-        nip day-counts nth
-    ] if ;
+: days-in-month ( timestamp -- n )
+    >date< drop (days-in-month) ;
 
-M: timestamp days-in-month ( timestamp -- n )
-    >date< drop 2array days-in-month ;
-
-GENERIC: day-of-week ( obj -- n )
-
-M: timestamp day-of-week ( timestamp -- n )
+: day-of-week ( timestamp -- n )
     >date< zeller-congruence ;
 
-M: array day-of-week ( array -- n )
-    first3 zeller-congruence ;
-
-GENERIC: day-of-year ( obj -- n )
-
-M: array day-of-year ( array -- n )
-    first3
-    3dup day-counts rot head-slice sum +
-    swap leap-year? [
-        -roll
-        pick 3 1 <date> >r <date> r>
+:: (day-of-year) ( year month day -- n )
+    day-counts month head-slice sum day +
+    year leap-year? [
+        year month day <date>
+        year 3 1 <date>
         after=? [ 1+ ] when
-    ] [
-        >r 3drop r>
-    ] if ;
+    ] when ;
 
-M: timestamp day-of-year ( timestamp -- n )
-    >date< 3array day-of-year ;
+: day-of-year ( timestamp -- n )
+    >date< (day-of-year) ;
 
+<PRIVATE
 : day-offset ( timestamp m -- timestamp n )
     over day-of-week - ; inline
 
 : day-this-week ( timestamp n -- timestamp )
     day-offset days time+ ;
+PRIVATE>
 
-: sunday ( timestamp -- timestamp ) 0 day-this-week ;
-: monday ( timestamp -- timestamp ) 1 day-this-week ;
-: tuesday ( timestamp -- timestamp ) 2 day-this-week ;
-: wednesday ( timestamp -- timestamp ) 3 day-this-week ;
-: thursday ( timestamp -- timestamp ) 4 day-this-week ;
-: friday ( timestamp -- timestamp ) 5 day-this-week ;
-: saturday ( timestamp -- timestamp ) 6 day-this-week ;
+: sunday ( timestamp -- new-timestamp ) 0 day-this-week ;
+: monday ( timestamp -- new-timestamp ) 1 day-this-week ;
+: tuesday ( timestamp -- new-timestamp ) 2 day-this-week ;
+: wednesday ( timestamp -- new-timestamp ) 3 day-this-week ;
+: thursday ( timestamp -- new-timestamp ) 4 day-this-week ;
+: friday ( timestamp -- new-timestamp ) 5 day-this-week ;
+: saturday ( timestamp -- new-timestamp ) 6 day-this-week ;
 
-: beginning-of-day ( timestamp -- new-timestamp )
-    clone
-    0 >>hour
-    0 >>minute
-    0 >>second ; inline
+: midnight ( timestamp -- new-timestamp )
+    clone 0 >>hour 0 >>minute 0 >>second ; inline
+
+: noon ( timestamp -- new-timestamp )
+    midnight 12 >>hour ; inline
 
 : beginning-of-month ( timestamp -- new-timestamp )
-    beginning-of-day 1 >>day ;
+    midnight 1 >>day ;
 
 : beginning-of-week ( timestamp -- new-timestamp )
-    beginning-of-day sunday ;
+    midnight sunday ;
 
 : beginning-of-year ( timestamp -- new-timestamp )
     beginning-of-month 1 >>month ;
 
 : time-since-midnight ( timestamp -- duration )
-    dup beginning-of-day time- ;
+    dup midnight time- ;
 
 M: timestamp sleep-until timestamp>millis sleep-until ;
 
-M: duration sleep from-now sleep-until ;
+M: duration sleep hence sleep-until ;
 
 {
     { [ os unix? ] [ "calendar.unix" ] }
diff --git a/extra/calendar/format/format-tests.factor b/basis/calendar/format/format-tests.factor
similarity index 87%
rename from extra/calendar/format/format-tests.factor
rename to basis/calendar/format/format-tests.factor
index 3efe33e265..c433a118c2 100755
--- a/extra/calendar/format/format-tests.factor
+++ b/basis/calendar/format/format-tests.factor
@@ -3,23 +3,23 @@ io.streams.string accessors io math.order ;
 IN: calendar.format.tests
 
 [ 0 ] [
-    "Z" [ read1 read-rfc3339-gmt-offset ] with-string-reader dt>hours
+    "Z" [ read1 read-rfc3339-gmt-offset ] with-string-reader duration>hours
 ] unit-test
 
 [ 1 ] [
-    "+01" [ read1 read-rfc3339-gmt-offset ] with-string-reader dt>hours
+    "+01" [ read1 read-rfc3339-gmt-offset ] with-string-reader duration>hours
 ] unit-test
 
 [ -1 ] [
-    "-01" [ read1 read-rfc3339-gmt-offset ] with-string-reader dt>hours
+    "-01" [ read1 read-rfc3339-gmt-offset ] with-string-reader duration>hours
 ] unit-test
 
 [ -1-1/2 ] [
-    "-01:30" [ read1 read-rfc3339-gmt-offset ] with-string-reader dt>hours
+    "-01:30" [ read1 read-rfc3339-gmt-offset ] with-string-reader duration>hours
 ] unit-test
 
 [ 1+1/2 ] [
-    "+01:30" [ read1 read-rfc3339-gmt-offset ] with-string-reader dt>hours
+    "+01:30" [ read1 read-rfc3339-gmt-offset ] with-string-reader duration>hours
 ] unit-test
 
 [ ] [ now timestamp>rfc3339 drop ] unit-test
@@ -58,7 +58,7 @@ IN: calendar.format.tests
         26
         0
         37
-        42.12345
+        42+2469/20000
         T{ duration f 0 0 0 -5 0 0 }
     }
 ] [ "2008-05-26T00:37:42.12345-05:00" rfc3339>timestamp ] unit-test
diff --git a/extra/calendar/format/format.factor b/basis/calendar/format/format.factor
similarity index 81%
rename from extra/calendar/format/format.factor
rename to basis/calendar/format/format.factor
index ff1811e9d5..bfe438fae1 100755
--- a/extra/calendar/format/format.factor
+++ b/basis/calendar/format/format.factor
@@ -4,46 +4,46 @@ combinators accessors debugger
 calendar calendar.format.macros ;
 IN: calendar.format
 
-: pad-00 number>string 2 CHAR: 0 pad-left ;
+: pad-00 ( n -- str ) number>string 2 CHAR: 0 pad-left ;
 
-: pad-0000 number>string 4 CHAR: 0 pad-left ;
+: pad-0000 ( n -- str ) number>string 4 CHAR: 0 pad-left ;
 
-: pad-00000 number>string 5 CHAR: 0 pad-left ;
+: pad-00000 ( n -- str ) number>string 5 CHAR: 0 pad-left ;
 
-: write-00 pad-00 write ;
+: write-00 ( n -- ) pad-00 write ;
 
-: write-0000 pad-0000 write ;
+: write-0000 ( n -- ) pad-0000 write ;
 
-: write-00000 pad-00000 write ;
+: write-00000 ( n -- ) pad-00000 write ;
 
-: hh hour>> write-00 ;
+: hh ( time -- ) hour>> write-00 ;
 
-: mm minute>> write-00 ;
+: mm ( time -- ) minute>> write-00 ;
 
-: ss second>> >integer write-00 ;
+: ss ( time -- ) second>> >integer write-00 ;
 
-: D day>> number>string write ;
+: D ( time -- ) day>> number>string write ;
 
-: DD day>> write-00 ;
+: DD ( time -- ) day>> write-00 ;
 
-: DAY day-of-week day-abbreviations3 nth write ;
+: DAY ( time -- ) day-of-week day-abbreviation3 write ;
 
-: MM month>> write-00 ;
+: MM ( time -- ) month>> write-00 ;
 
-: MONTH month>> month-abbreviations nth write ;
+: MONTH ( time -- ) month>> month-abbreviation write ;
 
-: YYYY year>> write-0000 ;
+: YYYY ( time -- ) year>> write-0000 ;
 
-: YYYYY year>> write-00000 ;
+: YYYYY ( time -- ) year>> write-00000 ;
 
 : expect ( str -- )
     read1 swap member? [ "Parse error" throw ] unless ;
 
-: read-00 2 read string>number ;
+: read-00 ( -- n ) 2 read string>number ;
 
-: read-000 3 read string>number ;
+: read-000 ( -- n ) 3 read string>number ;
 
-: read-0000 4 read string>number ;
+: read-0000 ( -- n ) 4 read string>number ;
 
 GENERIC: day. ( obj -- )
 
@@ -57,9 +57,9 @@ GENERIC: month. ( obj -- )
 
 M: array month. ( pair -- )
     first2
-    [ month-names nth write bl number>string print ] 2keep
-    [ 1 zeller-congruence ] 2keep
-    2array days-in-month day-abbreviations2 " " join print
+    [ month-name write bl number>string print ]
+    [ 1 zeller-congruence ]
+    [ (days-in-month) day-abbreviations2 " " join print ] 2tri
     over "   " <repetition> concat write
     [
         [ 1+ day. ] keep
@@ -191,7 +191,7 @@ ERROR: invalid-timestamp-format ;
         "," read-token day-abbreviations3 member? check-timestamp drop
         read1 CHAR: \s assert=
         read-sp checked-number >>day
-        read-sp month-abbreviations index check-timestamp >>month
+        read-sp month-abbreviations index 1+ check-timestamp >>month
         read-sp checked-number >>year
         ":" read-token checked-number >>hour
         ":" read-token checked-number >>minute
@@ -206,7 +206,7 @@ ERROR: invalid-timestamp-format ;
         "," read-token day-abbreviations3 member? check-timestamp drop
         read1 CHAR: \s assert=
         "-" read-token checked-number >>day
-        "-" read-token month-abbreviations index check-timestamp >>month
+        "-" read-token month-abbreviations index 1+ check-timestamp >>month
         read-sp checked-number >>year
         ":" read-token checked-number >>hour
         ":" read-token checked-number >>minute
@@ -219,7 +219,7 @@ ERROR: invalid-timestamp-format ;
 : (cookie-string>timestamp-2) ( -- timestamp )
     timestamp new
         read-sp day-abbreviations3 member? check-timestamp drop
-        read-sp month-abbreviations index check-timestamp >>month
+        read-sp month-abbreviations index 1+ check-timestamp >>month
         read-sp checked-number >>day
         ":" read-token checked-number >>hour
         ":" read-token checked-number >>minute
@@ -244,13 +244,13 @@ ERROR: invalid-timestamp-format ;
     [ (ymdhms>timestamp) ] with-string-reader ;
 
 : (hms>timestamp) ( -- timestamp )
-    f f f read-hms instant <timestamp> ;
+    0 0 0 read-hms instant <timestamp> ;
 
 : hms>timestamp ( str -- timestamp )
     [ (hms>timestamp) ] with-string-reader ;
 
 : (ymd>timestamp) ( -- timestamp )
-    read-ymd f f f instant <timestamp> ;
+    read-ymd 0 0 0 instant <timestamp> ;
 
 : ymd>timestamp ( str -- timestamp )
     [ (ymd>timestamp) ] with-string-reader ;
@@ -261,7 +261,7 @@ ERROR: invalid-timestamp-format ;
 : timestamp>ymd ( timestamp -- str )
     [ (timestamp>ymd) ] with-string-writer ;
 
-: (timestamp>hms)
+: (timestamp>hms) ( timestamp -- )
     { hh ":" mm ":" ss } formatted ;
 
 : timestamp>hms ( timestamp -- str )
diff --git a/extra/calendar/format/macros/macros-tests.factor b/basis/calendar/format/macros/macros-tests.factor
similarity index 80%
rename from extra/calendar/format/macros/macros-tests.factor
rename to basis/calendar/format/macros/macros-tests.factor
index 91a8f80894..544332770f 100644
--- a/extra/calendar/format/macros/macros-tests.factor
+++ b/basis/calendar/format/macros/macros-tests.factor
@@ -7,7 +7,8 @@ IN: calendar.format.macros
 
 [ { [ 1 throw ] } attempt-all-quots ] [ 1 = ] must-fail-with
 
-: compiled-test-1 { [ 1 throw ] [ 2 ] } attempt-all-quots ;
+: compiled-test-1 ( -- n )
+    { [ 1 throw ] [ 2 ] } attempt-all-quots ;
 
 \ compiled-test-1 must-infer
 
diff --git a/extra/calendar/format/macros/macros.factor b/basis/calendar/format/macros/macros.factor
similarity index 100%
rename from extra/calendar/format/macros/macros.factor
rename to basis/calendar/format/macros/macros.factor
diff --git a/extra/calendar/format/summary.txt b/basis/calendar/format/summary.txt
similarity index 100%
rename from extra/calendar/format/summary.txt
rename to basis/calendar/format/summary.txt
diff --git a/extra/calendar/model/model.factor b/basis/calendar/model/model.factor
similarity index 76%
rename from extra/calendar/model/model.factor
rename to basis/calendar/model/model.factor
index aa295e0f75..60a61c2026 100755
--- a/extra/calendar/model/model.factor
+++ b/basis/calendar/model/model.factor
@@ -10,7 +10,10 @@ SYMBOL: time
     1000 sleep (time-thread) ;
 
 : time-thread ( -- )
-    [ (time-thread) ] "Time model update" spawn drop ;
+    [
+        init-namespaces
+        (time-thread)
+    ] "Time model update" spawn drop ;
 
 f <model> time set-global
 [ time-thread ] "calendar.model" add-init-hook
diff --git a/extra/calendar/model/summary.txt b/basis/calendar/model/summary.txt
similarity index 100%
rename from extra/calendar/model/summary.txt
rename to basis/calendar/model/summary.txt
diff --git a/extra/calendar/summary.txt b/basis/calendar/summary.txt
similarity index 100%
rename from extra/calendar/summary.txt
rename to basis/calendar/summary.txt
diff --git a/extra/calendar/backend/authors.txt b/basis/calendar/unix/authors.txt
similarity index 100%
rename from extra/calendar/backend/authors.txt
rename to basis/calendar/unix/authors.txt
diff --git a/basis/calendar/unix/tags.txt b/basis/calendar/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/calendar/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/calendar/unix/unix.factor b/basis/calendar/unix/unix.factor
similarity index 68%
rename from extra/calendar/unix/unix.factor
rename to basis/calendar/unix/unix.factor
index 6383d4ec42..1da554e0f1 100644
--- a/extra/calendar/unix/unix.factor
+++ b/basis/calendar/unix/unix.factor
@@ -1,5 +1,5 @@
-USING: alien alien.c-types arrays calendar.backend
-kernel structs math unix.time namespaces system ;
+USING: alien alien.c-types arrays calendar kernel structs
+math unix.time namespaces system ;
 IN: calendar.unix
 
 : get-time ( -- alien )
diff --git a/extra/calendar/unix/authors.txt b/basis/calendar/windows/authors.txt
similarity index 100%
rename from extra/calendar/unix/authors.txt
rename to basis/calendar/windows/authors.txt
diff --git a/basis/calendar/windows/tags.txt b/basis/calendar/windows/tags.txt
new file mode 100644
index 0000000000..02ec70f741
--- /dev/null
+++ b/basis/calendar/windows/tags.txt
@@ -0,0 +1,2 @@
+unportable
+windows
diff --git a/extra/calendar/windows/windows.factor b/basis/calendar/windows/windows.factor
similarity index 82%
rename from extra/calendar/windows/windows.factor
rename to basis/calendar/windows/windows.factor
index b621d3bde3..508cbb0a49 100755
--- a/extra/calendar/windows/windows.factor
+++ b/basis/calendar/windows/windows.factor
@@ -1,5 +1,5 @@
-USING: calendar.backend namespaces alien.c-types system
-windows windows.kernel32 kernel math combinators ;
+USING: calendar namespaces alien.c-types system windows
+windows.kernel32 kernel math combinators ;
 IN: calendar.windows
 
 M: windows gmt-offset ( -- hours minutes seconds )
diff --git a/extra/balloon-bomber/authors.txt b/basis/channels/authors.txt
similarity index 100%
rename from extra/balloon-bomber/authors.txt
rename to basis/channels/authors.txt
diff --git a/extra/channels/channels-docs.factor b/basis/channels/channels-docs.factor
similarity index 100%
rename from extra/channels/channels-docs.factor
rename to basis/channels/channels-docs.factor
diff --git a/extra/channels/channels-tests.factor b/basis/channels/channels-tests.factor
similarity index 95%
rename from extra/channels/channels-tests.factor
rename to basis/channels/channels-tests.factor
index df72572c67..3300faa125 100755
--- a/extra/channels/channels-tests.factor
+++ b/basis/channels/channels-tests.factor
@@ -17,7 +17,7 @@ IN: channels.tests
     from 
 ] unit-test
 
-{ V{ 1 2 3 4 } } [
+{ { 1 2 3 4 } } [
     V{ } clone <channel>
     [ from swap push ] in-thread
     [ from swap push ] in-thread
@@ -30,7 +30,7 @@ IN: channels.tests
     natural-sort
 ] unit-test
 
-{ V{ 1 2 4 9 } } [
+{ { 1 2 4 9 } } [
     V{ } clone <channel>
     [ 4 swap to ] in-thread
     [ 2 swap to ] in-thread
diff --git a/extra/channels/channels.factor b/basis/channels/channels.factor
similarity index 70%
rename from extra/channels/channels.factor
rename to basis/channels/channels.factor
index ea54766ad4..9b8c418634 100755
--- a/extra/channels/channels.factor
+++ b/basis/channels/channels.factor
@@ -2,8 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 !
 ! Channels - based on ideas from newsqueak
-USING: kernel sequences sequences.lib threads continuations
-random math ;
+USING: kernel sequences threads continuations
+random math accessors random ;
 IN: channels
 
 TUPLE: channel receivers senders ;
@@ -17,14 +17,14 @@ GENERIC: from ( channel -- value )
 <PRIVATE
 
 : wait ( channel -- )
-    [ channel-senders push ] curry
+    [ senders>> push ] curry
     "channel send" suspend drop ;
 
 : (to) ( value receivers -- )
     delete-random resume-with yield ;
 
 : notify ( continuation channel -- channel )
-    [ channel-receivers push ] keep ;
+    [ receivers>> push ] keep ;
 
 : (from) ( senders -- )
     delete-random resume ;
@@ -32,11 +32,11 @@ GENERIC: from ( channel -- value )
 PRIVATE>
 
 M: channel to ( value channel -- )
-    dup channel-receivers
-    dup empty? [ drop dup wait to ] [ nip (to) ] if ;
+    dup receivers>>
+    [ dup wait to ] [ nip (to) ] if-empty ;
 
 M: channel from ( channel -- value )
     [
-        notify channel-senders
-        dup empty? [ drop ] [ (from) ] if
+        notify senders>>
+        [ (from) ] unless-empty
     ] curry "channel receive" suspend ;
diff --git a/extra/channels/authors.txt b/basis/channels/examples/authors.txt
similarity index 100%
rename from extra/channels/authors.txt
rename to basis/channels/examples/authors.txt
diff --git a/extra/channels/examples/examples.factor b/basis/channels/examples/examples.factor
similarity index 100%
rename from extra/channels/examples/examples.factor
rename to basis/channels/examples/examples.factor
diff --git a/extra/channels/examples/summary.txt b/basis/channels/examples/summary.txt
similarity index 100%
rename from extra/channels/examples/summary.txt
rename to basis/channels/examples/summary.txt
diff --git a/extra/channels/examples/tags.txt b/basis/channels/examples/tags.txt
similarity index 100%
rename from extra/channels/examples/tags.txt
rename to basis/channels/examples/tags.txt
diff --git a/extra/channels/examples/authors.txt b/basis/channels/remote/authors.txt
similarity index 100%
rename from extra/channels/examples/authors.txt
rename to basis/channels/remote/authors.txt
diff --git a/extra/channels/remote/remote-docs.factor b/basis/channels/remote/remote-docs.factor
similarity index 100%
rename from extra/channels/remote/remote-docs.factor
rename to basis/channels/remote/remote-docs.factor
diff --git a/extra/channels/remote/remote-tests.factor b/basis/channels/remote/remote-tests.factor
similarity index 100%
rename from extra/channels/remote/remote-tests.factor
rename to basis/channels/remote/remote-tests.factor
diff --git a/extra/channels/remote/remote.factor b/basis/channels/remote/remote.factor
similarity index 85%
rename from extra/channels/remote/remote.factor
rename to basis/channels/remote/remote.factor
index c9cfc83d27..9c1878e14d 100755
--- a/extra/channels/remote/remote.factor
+++ b/basis/channels/remote/remote.factor
@@ -4,7 +4,7 @@
 ! Remote Channels
 USING: kernel init namespaces assocs arrays random
 sequences channels match concurrency.messaging
-concurrency.distributed threads ;
+concurrency.distributed threads accessors ;
 IN: channels.remote
 
 <PRIVATE
@@ -52,13 +52,13 @@ TUPLE: remote-channel node id ;
 C: <remote-channel> remote-channel 
 
 M: remote-channel to ( value remote-channel -- )
-    [ [ \ to , remote-channel-id , , ] { } make ] keep
-    remote-channel-node "remote-channels" <remote-process> 
+    [ [ \ to , id>> , , ] { } make ] keep
+    node>> "remote-channels" <remote-process> 
     send-synchronous no-channel = [ no-channel throw ] when ;
 
 M: remote-channel from ( remote-channel -- value )
-    [ [ \ from , remote-channel-id , ] { } make ] keep
-    remote-channel-node "remote-channels" <remote-process> 
+    [ [ \ from , id>> , ] { } make ] keep
+    node>> "remote-channels" <remote-process> 
     send-synchronous dup no-channel = [ no-channel throw ] when* ;
 
 [
diff --git a/extra/channels/remote/summary.txt b/basis/channels/remote/summary.txt
similarity index 100%
rename from extra/channels/remote/summary.txt
rename to basis/channels/remote/summary.txt
diff --git a/extra/channels/remote/tags.txt b/basis/channels/remote/tags.txt
similarity index 100%
rename from extra/channels/remote/tags.txt
rename to basis/channels/remote/tags.txt
diff --git a/extra/channels/summary.txt b/basis/channels/summary.txt
similarity index 100%
rename from extra/channels/summary.txt
rename to basis/channels/summary.txt
diff --git a/extra/channels/tags.txt b/basis/channels/tags.txt
similarity index 100%
rename from extra/channels/tags.txt
rename to basis/channels/tags.txt
diff --git a/extra/checksums/adler-32/adler-32-docs.factor b/basis/checksums/adler-32/adler-32-docs.factor
similarity index 100%
rename from extra/checksums/adler-32/adler-32-docs.factor
rename to basis/checksums/adler-32/adler-32-docs.factor
diff --git a/extra/checksums/adler-32/adler-32-tests.factor b/basis/checksums/adler-32/adler-32-tests.factor
similarity index 100%
rename from extra/checksums/adler-32/adler-32-tests.factor
rename to basis/checksums/adler-32/adler-32-tests.factor
diff --git a/extra/checksums/adler-32/adler-32.factor b/basis/checksums/adler-32/adler-32.factor
similarity index 100%
rename from extra/checksums/adler-32/adler-32.factor
rename to basis/checksums/adler-32/adler-32.factor
diff --git a/extra/calendar/windows/authors.txt b/basis/checksums/adler-32/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/calendar/windows/authors.txt
rename to basis/checksums/adler-32/authors.txt
diff --git a/extra/checksums/adler-32/authors.txt b/basis/checksums/common/authors.txt
similarity index 100%
rename from extra/checksums/adler-32/authors.txt
rename to basis/checksums/common/authors.txt
diff --git a/basis/checksums/common/common.factor b/basis/checksums/common/common.factor
new file mode 100644
index 0000000000..ea1c6f5b39
--- /dev/null
+++ b/basis/checksums/common/common.factor
@@ -0,0 +1,21 @@
+! Copyright (C) 2006, 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math math.bitwise strings io.binary namespaces
+grouping ;
+IN: checksums.common
+
+SYMBOL: bytes-read
+
+: calculate-pad-length ( length -- pad-length )
+    dup 56 < 55 119 ? swap - ;
+
+: pad-last-block ( str big-endian? length -- str )
+    [
+        rot %
+        HEX: 80 ,
+        dup HEX: 3f bitand calculate-pad-length 0 <string> %
+        3 shift 8 rot [ >be ] [ >le ] if %
+    ] "" make 64 group ;
+
+: update-old-new ( old new -- )
+    [ get >r get r> ] 2keep >r >r w+ dup r> set r> set ; inline
diff --git a/basis/checksums/common/summary.txt b/basis/checksums/common/summary.txt
new file mode 100644
index 0000000000..0956c052a4
--- /dev/null
+++ b/basis/checksums/common/summary.txt
@@ -0,0 +1 @@
+Some code shared by MD5, SHA1 and SHA2 implementations
diff --git a/extra/checksums/md5/authors.txt b/basis/checksums/md5/authors.txt
similarity index 100%
rename from extra/checksums/md5/authors.txt
rename to basis/checksums/md5/authors.txt
diff --git a/extra/checksums/md5/md5-docs.factor b/basis/checksums/md5/md5-docs.factor
similarity index 100%
rename from extra/checksums/md5/md5-docs.factor
rename to basis/checksums/md5/md5-docs.factor
diff --git a/extra/checksums/md5/md5-tests.factor b/basis/checksums/md5/md5-tests.factor
similarity index 100%
rename from extra/checksums/md5/md5-tests.factor
rename to basis/checksums/md5/md5-tests.factor
diff --git a/extra/checksums/md5/md5.factor b/basis/checksums/md5/md5.factor
similarity index 90%
rename from extra/checksums/md5/md5.factor
rename to basis/checksums/md5/md5.factor
index a385f6d04f..6158254f84 100755
--- a/extra/checksums/md5/md5.factor
+++ b/basis/checksums/md5/md5.factor
@@ -1,11 +1,14 @@
-! See http://www.faqs.org/rfcs/rfc1321.html
-
+! Copyright (C) 2006, 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
 USING: kernel io io.binary io.files io.streams.byte-array math
-math.functions math.parser namespaces splitting strings
-sequences crypto.common byte-arrays locals sequences.private
-io.encodings.binary symbols math.bitfields.lib checksums ;
+math.functions math.parser namespaces splitting grouping strings
+sequences byte-arrays locals sequences.private
+io.encodings.binary symbols math.bitwise checksums
+checksums.common ;
 IN: checksums.md5
 
+! See http://www.faqs.org/rfcs/rfc1321.html
+
 <PRIVATE
 
 SYMBOLS: a b c d old-a old-b old-c old-d ;
@@ -74,7 +77,7 @@ SYMBOLS: a b c d old-a old-b old-c old-d ;
 : S43 15 ; inline
 : S44 21 ; inline
 
-: (process-md5-block-F)
+: (process-md5-block-F) ( block -- block )
     dup S11 1  0  [ F ] ABCD
     dup S12 2  1  [ F ] DABC
     dup S13 3  2  [ F ] CDAB
@@ -92,7 +95,7 @@ SYMBOLS: a b c d old-a old-b old-c old-d ;
     dup S13 15 14 [ F ] CDAB
     dup S14 16 15 [ F ] BCDA ;
 
-: (process-md5-block-G)
+: (process-md5-block-G) ( block -- block )
     dup S21 17 1  [ G ] ABCD
     dup S22 18 6  [ G ] DABC
     dup S23 19 11 [ G ] CDAB
@@ -110,7 +113,7 @@ SYMBOLS: a b c d old-a old-b old-c old-d ;
     dup S23 31 7  [ G ] CDAB
     dup S24 32 12 [ G ] BCDA ;
 
-: (process-md5-block-H)
+: (process-md5-block-H) ( block -- block )
     dup S31 33 5  [ H ] ABCD
     dup S32 34 8  [ H ] DABC
     dup S33 35 11 [ H ] CDAB
@@ -128,7 +131,7 @@ SYMBOLS: a b c d old-a old-b old-c old-d ;
     dup S33 47 15 [ H ] CDAB
     dup S34 48 2  [ H ] BCDA ;
 
-: (process-md5-block-I)
+: (process-md5-block-I) ( block -- block )
     dup S41 49 0  [ I ] ABCD
     dup S42 50 7  [ I ] DABC
     dup S43 51 14 [ I ] CDAB
diff --git a/extra/checksums/null/null.factor b/basis/checksums/null/null.factor
similarity index 100%
rename from extra/checksums/null/null.factor
rename to basis/checksums/null/null.factor
diff --git a/extra/checksums/openssl/openssl-docs.factor b/basis/checksums/openssl/openssl-docs.factor
similarity index 100%
rename from extra/checksums/openssl/openssl-docs.factor
rename to basis/checksums/openssl/openssl-docs.factor
diff --git a/extra/checksums/openssl/openssl-tests.factor b/basis/checksums/openssl/openssl-tests.factor
similarity index 100%
rename from extra/checksums/openssl/openssl-tests.factor
rename to basis/checksums/openssl/openssl-tests.factor
diff --git a/extra/checksums/openssl/openssl.factor b/basis/checksums/openssl/openssl.factor
similarity index 100%
rename from extra/checksums/openssl/openssl.factor
rename to basis/checksums/openssl/openssl.factor
diff --git a/extra/checksums/sha1/authors.txt b/basis/checksums/sha1/authors.txt
similarity index 100%
rename from extra/checksums/sha1/authors.txt
rename to basis/checksums/sha1/authors.txt
diff --git a/extra/checksums/sha1/sha1-docs.factor b/basis/checksums/sha1/sha1-docs.factor
similarity index 100%
rename from extra/checksums/sha1/sha1-docs.factor
rename to basis/checksums/sha1/sha1-docs.factor
diff --git a/extra/checksums/sha1/sha1-tests.factor b/basis/checksums/sha1/sha1-tests.factor
similarity index 100%
rename from extra/checksums/sha1/sha1-tests.factor
rename to basis/checksums/sha1/sha1-tests.factor
diff --git a/extra/checksums/sha1/sha1.factor b/basis/checksums/sha1/sha1.factor
similarity index 82%
rename from extra/checksums/sha1/sha1.factor
rename to basis/checksums/sha1/sha1.factor
index 6427e0e8eb..6aa2cfa2eb 100755
--- a/extra/checksums/sha1/sha1.factor
+++ b/basis/checksums/sha1/sha1.factor
@@ -1,7 +1,9 @@
-USING: arrays combinators crypto.common kernel io
-io.encodings.binary io.files io.streams.byte-array math.vectors
-strings sequences namespaces math parser sequences vectors
-io.binary hashtables symbols math.bitfields.lib checksums ;
+! Copyright (C) 2006, 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays combinators kernel io io.encodings.binary io.files
+io.streams.byte-array math.vectors strings sequences namespaces
+math parser sequences assocs grouping vectors io.binary hashtables
+symbols math.bitwise checksums checksums.common ;
 IN: checksums.sha1
 
 ! Implemented according to RFC 3174.
@@ -45,6 +47,9 @@ SYMBOLS: h0 h1 h2 h3 h4 A B C D E w K ;
         { 3 [ bitxor bitxor ] }
     } case ;
 
+: nth-int-be ( string n -- int )
+    4 * dup 4 + rot <slice> be> ; inline
+
 : make-w ( str -- )
     #! compute w, steps a-b of RFC 3174, section 6.1
     16 [ nth-int-be w get push ] with each
@@ -113,8 +118,16 @@ INSTANCE: sha1 checksum
 M: sha1 checksum-stream ( stream -- sha1 )
     drop [ initialize-sha1 stream>sha1 get-sha1 ] with-input-stream ;
 
+: seq>2seq ( seq -- seq1 seq2 )
+    #! { abcdefgh } -> { aceg } { bdfh }
+    2 group flip [ { } { } ] [ first2 ] if-empty ;
+
+: 2seq>seq ( seq1 seq2 -- seq )
+    #! { aceg } { bdfh } -> { abcdefgh }
+    [ zip concat ] keep like ;
+
 : sha1-interleave ( string -- seq )
-    [ zero? ] left-trim
+    [ zero? ] trim-left
     dup length odd? [ rest ] when
     seq>2seq [ sha1 checksum-bytes ] bi@
     2seq>seq ;
diff --git a/extra/checksums/sha2/authors.txt b/basis/checksums/sha2/authors.txt
similarity index 100%
rename from extra/checksums/sha2/authors.txt
rename to basis/checksums/sha2/authors.txt
diff --git a/extra/checksums/sha2/sha2-docs.factor b/basis/checksums/sha2/sha2-docs.factor
similarity index 100%
rename from extra/checksums/sha2/sha2-docs.factor
rename to basis/checksums/sha2/sha2-docs.factor
diff --git a/extra/checksums/sha2/sha2-tests.factor b/basis/checksums/sha2/sha2-tests.factor
similarity index 100%
rename from extra/checksums/sha2/sha2-tests.factor
rename to basis/checksums/sha2/sha2-tests.factor
diff --git a/extra/checksums/sha2/sha2.factor b/basis/checksums/sha2/sha2.factor
similarity index 84%
rename from extra/checksums/sha2/sha2.factor
rename to basis/checksums/sha2/sha2.factor
index e5f16c9c11..ac93c05260 100755
--- a/extra/checksums/sha2/sha2.factor
+++ b/basis/checksums/sha2/sha2.factor
@@ -1,5 +1,8 @@
-USING: crypto.common kernel splitting math sequences namespaces
-io.binary symbols math.bitfields.lib checksums ;
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel splitting grouping math sequences namespaces
+io.binary symbols math.bitwise checksums checksums.common
+sbufs strings ;
 IN: checksums.sha2
 
 <PRIVATE
@@ -80,6 +83,8 @@ SYMBOLS: vars M K H S0 S1 process-M word-size block-size ;
     [ -11 bitroll-32 ] keep
     -25 bitroll-32 bitxor bitxor ; inline
 
+: slice3 ( n seq -- a b c ) >r dup 3 + r> <slice> first3 ; inline
+
 : T1 ( W n -- T1 )
     [ swap nth ] keep
     K get nth +
@@ -111,6 +116,15 @@ SYMBOLS: vars M K H S0 S1 process-M word-size block-size ;
 : seq>byte-array ( n seq -- string )
     [ swap [ >be % ] curry each ] B{ } make ;
 
+: preprocess-plaintext ( string big-endian? -- padded-string )
+    #! pad 0x80 then 00 til 8 bytes left, then 64bit length in bits
+    >r >sbuf r> over [
+        HEX: 80 ,
+        dup length HEX: 3f bitand
+        calculate-pad-length 0 <string> %
+        length 3 shift 8 rot [ >be ] [ >le ] if %
+    ] "" make over push-all ;
+
 : byte-array>sha2 ( byte-array -- string )
     t preprocess-plaintext
     block-size get group [ process-chunk ] each
diff --git a/extra/circular/authors.txt b/basis/circular/authors.txt
similarity index 100%
rename from extra/circular/authors.txt
rename to basis/circular/authors.txt
diff --git a/extra/circular/circular-tests.factor b/basis/circular/circular-tests.factor
similarity index 100%
rename from extra/circular/circular-tests.factor
rename to basis/circular/circular-tests.factor
diff --git a/extra/circular/circular.factor b/basis/circular/circular.factor
similarity index 100%
rename from extra/circular/circular.factor
rename to basis/circular/circular.factor
diff --git a/extra/circular/summary.txt b/basis/circular/summary.txt
similarity index 100%
rename from extra/circular/summary.txt
rename to basis/circular/summary.txt
diff --git a/core/heaps/tags.txt b/basis/circular/tags.txt
similarity index 100%
rename from core/heaps/tags.txt
rename to basis/circular/tags.txt
diff --git a/extra/cocoa/application/application-docs.factor b/basis/cocoa/application/application-docs.factor
similarity index 100%
rename from extra/cocoa/application/application-docs.factor
rename to basis/cocoa/application/application-docs.factor
diff --git a/extra/cocoa/application/application.factor b/basis/cocoa/application/application.factor
similarity index 79%
rename from extra/cocoa/application/application.factor
rename to basis/cocoa/application/application.factor
index 90159c1656..a28952ea33 100755
--- a/extra/cocoa/application/application.factor
+++ b/basis/cocoa/application/application.factor
@@ -1,14 +1,22 @@
 ! Copyright (C) 2006, 2007 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien io kernel namespaces core-foundation
+USING: alien alien.syntax io kernel namespaces core-foundation
 core-foundation.run-loop cocoa.messages cocoa cocoa.classes
-cocoa.runtime sequences threads debugger init inspector
-kernel.private ;
+cocoa.runtime sequences threads debugger init summary
+kernel.private assocs ;
 IN: cocoa.application
 
 : <NSString> ( str -- alien ) <CFString> -> autorelease ;
-
 : <NSArray> ( seq -- alien ) <CFArray> -> autorelease ;
+: <NSNumber> ( number -- alien ) <CFNumber> -> autorelease ;
+: <NSData> ( byte-array -- alien ) <CFData> -> autorelease ;
+: <NSDictionary> ( assoc -- alien )
+    NSMutableDictionary over assoc-size -> dictionaryWithCapacity:
+    [
+        [
+            spin -> setObject:forKey:
+        ] curry assoc-each
+    ] keep ;
 
 : NSApplicationDelegateReplySuccess 0 ;
 : NSApplicationDelegateReplyCancel  1 ;
@@ -19,6 +27,8 @@ IN: cocoa.application
 
 : NSApp ( -- app ) NSApplication -> sharedApplication ;
 
+FUNCTION: void NSBeep ( ) ;
+
 : with-cocoa ( quot -- )
     [ NSApp drop call ] with-autorelease-pool ;
 
diff --git a/core/cpu/arm/intrinsics/authors.txt b/basis/cocoa/application/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/arm/intrinsics/authors.txt
rename to basis/cocoa/application/authors.txt
diff --git a/extra/cocoa/application/summary.txt b/basis/cocoa/application/summary.txt
similarity index 100%
rename from extra/cocoa/application/summary.txt
rename to basis/cocoa/application/summary.txt
diff --git a/basis/cocoa/application/tags.txt b/basis/cocoa/application/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/application/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/allot/authors.txt b/basis/cocoa/authors.txt
similarity index 100%
rename from core/cpu/ppc/allot/authors.txt
rename to basis/cocoa/authors.txt
diff --git a/extra/cocoa/callbacks/authors.txt b/basis/cocoa/callbacks/authors.txt
similarity index 100%
rename from extra/cocoa/callbacks/authors.txt
rename to basis/cocoa/callbacks/authors.txt
diff --git a/extra/cocoa/callbacks/callbacks.factor b/basis/cocoa/callbacks/callbacks.factor
similarity index 100%
rename from extra/cocoa/callbacks/callbacks.factor
rename to basis/cocoa/callbacks/callbacks.factor
diff --git a/extra/cocoa/callbacks/summary.txt b/basis/cocoa/callbacks/summary.txt
similarity index 100%
rename from extra/cocoa/callbacks/summary.txt
rename to basis/cocoa/callbacks/summary.txt
diff --git a/basis/cocoa/callbacks/tags.txt b/basis/cocoa/callbacks/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/callbacks/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/cocoa/cocoa-docs.factor b/basis/cocoa/cocoa-docs.factor
similarity index 62%
rename from extra/cocoa/cocoa-docs.factor
rename to basis/cocoa/cocoa-docs.factor
index 30602db40b..01b0809f37 100644
--- a/extra/cocoa/cocoa-docs.factor
+++ b/basis/cocoa/cocoa-docs.factor
@@ -28,5 +28,21 @@ $nl
 { $subsection send }
 { $subsection super-send } ;
 
+ARTICLE: "cocoa" "Cocoa bridge"
+"The " { $vocab-link "cocoa" } " vocabulary implements a Factor-Cocoa bridge for Mac OS X (GNUstep is not supported)."
+$nl
+"The lowest layer uses the " { $link "alien" } " to define bindings for the various functions in Apple's Objective-C runtime. This is defined in the " { $vocab-link "cocoa.runtime" } " vocabulary."
+$nl
+"On top of this, a dynamic message send facility is built:"
+{ $subsection "objc-calling" }
+{ $subsection "objc-subclassing" }
+"A utility library is built to faciliate the development of Cocoa applications in Factor:"
+{ $subsection "cocoa-types" }
+{ $subsection "cocoa-application-utils" }
+{ $subsection "cocoa-dialogs" }
+{ $subsection "cocoa-pasteboard-utils" }
+{ $subsection "cocoa-view-utils" }
+{ $subsection "cocoa-window-utils" } ;
+
 IN: cocoa
-ABOUT: "objc-calling"
+ABOUT: "cocoa"
diff --git a/extra/cocoa/cocoa-tests.factor b/basis/cocoa/cocoa-tests.factor
similarity index 66%
rename from extra/cocoa/cocoa-tests.factor
rename to basis/cocoa/cocoa-tests.factor
index 4b56d81626..e1d6672872 100644
--- a/extra/cocoa/cocoa-tests.factor
+++ b/basis/cocoa/cocoa-tests.factor
@@ -20,10 +20,10 @@ CLASS: {
 
 test-foo
 
-[ 1 ] [ "x" get NSRect-x ] unit-test
-[ 2 ] [ "x" get NSRect-y ] unit-test
-[ 101 ] [ "x" get NSRect-w ] unit-test
-[ 102 ] [ "x" get NSRect-h ] unit-test
+[ 1.0 ] [ "x" get NSRect-x ] unit-test
+[ 2.0 ] [ "x" get NSRect-y ] unit-test
+[ 101.0 ] [ "x" get NSRect-w ] unit-test
+[ 102.0 ] [ "x" get NSRect-h ] unit-test
 
 CLASS: {
     { +superclass+ "NSObject" }
@@ -41,7 +41,7 @@ Bar [
     -> release
 ] compile-call
 
-[ 1 ] [ "x" get NSRect-x ] unit-test
-[ 2 ] [ "x" get NSRect-y ] unit-test
-[ 101 ] [ "x" get NSRect-w ] unit-test
-[ 102 ] [ "x" get NSRect-h ] unit-test
+[ 1.0 ] [ "x" get NSRect-x ] unit-test
+[ 2.0 ] [ "x" get NSRect-y ] unit-test
+[ 101.0 ] [ "x" get NSRect-w ] unit-test
+[ 102.0 ] [ "x" get NSRect-h ] unit-test
diff --git a/extra/cocoa/cocoa.factor b/basis/cocoa/cocoa.factor
similarity index 90%
rename from extra/cocoa/cocoa.factor
rename to basis/cocoa/cocoa.factor
index f4cfb20591..744d577c0d 100755
--- a/extra/cocoa/cocoa.factor
+++ b/basis/cocoa/cocoa.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: compiler io kernel cocoa.runtime cocoa.subclassing
 cocoa.messages cocoa.types sequences words vocabs parser
-core-foundation namespaces assocs hashtables compiler.units ;
+core-foundation namespaces assocs hashtables compiler.units
+lexer ;
 IN: cocoa
 
 : (remember-send) ( selector variable -- )
@@ -42,6 +43,7 @@ SYMBOL: super-sent-messages
         "NSArray"
         "NSAutoreleasePool"
         "NSBundle"
+        "NSData"
         "NSDictionary"
         "NSError"
         "NSEvent"
@@ -52,15 +54,18 @@ SYMBOL: super-sent-messages
         "NSNib"
         "NSNotification"
         "NSNotificationCenter"
+        "NSNumber"
         "NSObject"
         "NSOpenGLContext"
         "NSOpenGLPixelFormat"
         "NSOpenGLView"
         "NSOpenPanel"
         "NSPasteboard"
+        "NSPropertyListSerialization"
         "NSResponder"
         "NSSavePanel"
         "NSScreen"
+        "NSString"
         "NSView"
         "NSWindow"
         "NSWorkspace"
diff --git a/core/cpu/ppc/architecture/authors.txt b/basis/cocoa/dialogs/authors.txt
similarity index 100%
rename from core/cpu/ppc/architecture/authors.txt
rename to basis/cocoa/dialogs/authors.txt
diff --git a/extra/cocoa/dialogs/dialogs-docs.factor b/basis/cocoa/dialogs/dialogs-docs.factor
similarity index 100%
rename from extra/cocoa/dialogs/dialogs-docs.factor
rename to basis/cocoa/dialogs/dialogs-docs.factor
diff --git a/extra/cocoa/dialogs/dialogs.factor b/basis/cocoa/dialogs/dialogs.factor
similarity index 100%
rename from extra/cocoa/dialogs/dialogs.factor
rename to basis/cocoa/dialogs/dialogs.factor
diff --git a/extra/cocoa/dialogs/summary.txt b/basis/cocoa/dialogs/summary.txt
similarity index 100%
rename from extra/cocoa/dialogs/summary.txt
rename to basis/cocoa/dialogs/summary.txt
diff --git a/basis/cocoa/dialogs/tags.txt b/basis/cocoa/dialogs/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/dialogs/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/cocoa/enumeration/enumeration.factor b/basis/cocoa/enumeration/enumeration.factor
new file mode 100644
index 0000000000..765fb65ef2
--- /dev/null
+++ b/basis/cocoa/enumeration/enumeration.factor
@@ -0,0 +1,30 @@
+USING: kernel cocoa cocoa.types alien.c-types locals math sequences
+vectors fry libc ;
+IN: cocoa.enumeration
+
+: NS-EACH-BUFFER-SIZE 16 ; inline
+
+: (with-enumeration-buffers) ( quot -- )
+    "NSFastEnumerationState" heap-size swap '[
+        NS-EACH-BUFFER-SIZE "id" heap-size * [
+            NS-EACH-BUFFER-SIZE @
+        ] with-malloc
+    ] with-malloc ; inline
+
+:: (NSFastEnumeration-each) ( object quot: ( elt -- ) state stackbuf count -- )
+    object state stackbuf count -> countByEnumeratingWithState:objects:count:
+    dup zero? [ drop ] [
+        state NSFastEnumerationState-itemsPtr [ stackbuf ] unless*
+        '[ , void*-nth quot call ] each
+        object quot state stackbuf count (NSFastEnumeration-each)
+    ] if ; inline recursive
+
+: NSFastEnumeration-each ( object quot -- )
+    [ (NSFastEnumeration-each) ] (with-enumeration-buffers) ; inline
+
+: NSFastEnumeration-map ( object quot -- vector )
+    NS-EACH-BUFFER-SIZE <vector>
+    [ '[ @ , push ] NSFastEnumeration-each ] keep ; inline
+
+: NSFastEnumeration>vector ( object -- vector )
+    [ ] NSFastEnumeration-map ;
diff --git a/basis/cocoa/enumeration/tags.txt b/basis/cocoa/enumeration/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/enumeration/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/assembler/authors.txt b/basis/cocoa/messages/authors.txt
similarity index 100%
rename from core/cpu/ppc/assembler/authors.txt
rename to basis/cocoa/messages/authors.txt
diff --git a/extra/cocoa/messages/messages-docs.factor b/basis/cocoa/messages/messages-docs.factor
similarity index 100%
rename from extra/cocoa/messages/messages-docs.factor
rename to basis/cocoa/messages/messages-docs.factor
diff --git a/extra/cocoa/messages/messages.factor b/basis/cocoa/messages/messages.factor
similarity index 80%
rename from extra/cocoa/messages/messages.factor
rename to basis/cocoa/messages/messages.factor
index f917e20bc4..ceb3a0021c 100755
--- a/extra/cocoa/messages/messages.factor
+++ b/basis/cocoa/messages/messages.factor
@@ -1,10 +1,11 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types alien.strings alien.compiler
-arrays assocs combinators compiler inference.transforms kernel
+USING: accessors alien alien.c-types alien.strings
+arrays assocs combinators compiler kernel
 math namespaces parser prettyprint prettyprint.sections
 quotations sequences strings words cocoa.runtime io macros
-memoize debugger io.encodings.ascii ;
+memoize debugger io.encodings.ascii effects compiler.generator
+libc libc.private ;
 IN: cocoa.messages
 
 : make-sender ( method function -- quot )
@@ -36,7 +37,7 @@ super-message-senders global [ H{ } assoc-like ] change-at
 
 : <super> ( receiver -- super )
     "objc-super" <c-object> [
-        >r dup objc-object-isa objc-class-super-class r>
+        >r dup object_getClass class_getSuperclass r>
         set-objc-super-class
     ] keep
     [ set-objc-super-receiver ] keep ;
@@ -46,11 +47,11 @@ TUPLE: selector name object ;
 MEMO: <selector> ( name -- sel ) f \ selector boa ;
 
 : selector ( selector -- alien )
-    dup selector-object expired? [
-        dup selector-name sel_registerName
-        dup rot set-selector-object
+    dup object>> expired? [
+        dup name>> sel_registerName
+        [ >>object drop ] keep
     ] [
-        selector-object
+        object>>
     ] if ;
 
 SYMBOL: objc-methods
@@ -101,11 +102,6 @@ MACRO: (send) ( selector super? -- quot )
 : objc-meta-class ( string -- class )
     \ objc_getMetaClass (objc-class) ;
 
-: method-arg-type ( method i -- type )
-    f <void*> 0 <int> over
-    >r method_getArgumentInfo drop
-    r> *void* ascii alien>string ;
-
 SYMBOL: objc>alien-types
 
 H{
@@ -159,34 +155,32 @@ H{
 
 : parse-objc-type ( string -- ctype ) 0 swap (parse-objc-type) ;
 
+: method-arg-type ( method i -- type )
+    method_copyArgumentType
+    [ ascii alien>string parse-objc-type ] keep
+    (free) ;
+
 : method-arg-types ( method -- args )
     dup method_getNumberOfArguments
-    [ method-arg-type parse-objc-type ] with map ;
+    [ method-arg-type ] with map ;
 
 : method-return-type ( method -- ctype )
-    #! Undocumented hack! Apple does not support this feature!
-    objc-method-types parse-objc-type ;
+    method_copyReturnType
+    [ ascii alien>string parse-objc-type ] keep
+    (free) ;
 
 : register-objc-method ( method -- )
     dup method-return-type over method-arg-types 2array
     dup cache-stubs
-    swap objc-method-name sel_getName
+    swap method_getName sel_getName
     objc-methods get set-at ;
 
-: method-list@ ( ptr -- ptr )
-    "objc-method-list" heap-size swap <displaced-alien> ;
-
-: (register-objc-methods) ( objc-class iterator -- )
-    2dup class_nextMethodList [
-        dup objc-method-list-count swap method-list@ [
-            objc-method-nth register-objc-method
-        ] curry each (register-objc-methods)
-    ] [
-        2drop
-    ] if* ;
+: (register-objc-methods) ( methods count -- methods )
+    over [ void*-nth register-objc-method ] curry each ;
 
 : register-objc-methods ( class -- )
-    f <void*> (register-objc-methods) ;
+    0 <uint> [ class_copyMethodList ] keep *uint 
+    (register-objc-methods) (free) ;
 
 : class-exists? ( string -- class ) objc_getClass >boolean ;
 
@@ -196,7 +190,8 @@ H{
 : define-objc-class-word ( name quot -- )
     [
         over , , \ unless-defined , dup , \ objc-class ,
-    ] [ ] make >r "cocoa.classes" create r> define ;
+    ] [ ] make >r "cocoa.classes" create r>
+    (( -- class )) define-declared ;
 
 : import-objc-class ( name quot -- )
     2dup unless-defined
@@ -208,4 +203,4 @@ H{
     ] curry try ;
 
 : root-class ( class -- root )
-    dup objc-class-super-class [ root-class ] [ ] ?if ;
+    dup class_getSuperclass [ root-class ] [ ] ?if ;
diff --git a/extra/cocoa/messages/summary.txt b/basis/cocoa/messages/summary.txt
similarity index 100%
rename from extra/cocoa/messages/summary.txt
rename to basis/cocoa/messages/summary.txt
diff --git a/basis/cocoa/messages/tags.txt b/basis/cocoa/messages/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/messages/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/cocoa/nibs/authors.txt b/basis/cocoa/nibs/authors.txt
similarity index 100%
rename from extra/cocoa/nibs/authors.txt
rename to basis/cocoa/nibs/authors.txt
diff --git a/extra/cocoa/nibs/nibs-docs.factor b/basis/cocoa/nibs/nibs-docs.factor
similarity index 100%
rename from extra/cocoa/nibs/nibs-docs.factor
rename to basis/cocoa/nibs/nibs-docs.factor
diff --git a/extra/cocoa/nibs/nibs.factor b/basis/cocoa/nibs/nibs.factor
similarity index 100%
rename from extra/cocoa/nibs/nibs.factor
rename to basis/cocoa/nibs/nibs.factor
diff --git a/extra/cocoa/nibs/summary.txt b/basis/cocoa/nibs/summary.txt
similarity index 100%
rename from extra/cocoa/nibs/summary.txt
rename to basis/cocoa/nibs/summary.txt
diff --git a/basis/cocoa/nibs/tags.txt b/basis/cocoa/nibs/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/nibs/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/authors.txt b/basis/cocoa/pasteboard/authors.txt
similarity index 100%
rename from core/cpu/ppc/authors.txt
rename to basis/cocoa/pasteboard/authors.txt
diff --git a/extra/cocoa/pasteboard/pasteboard-docs.factor b/basis/cocoa/pasteboard/pasteboard-docs.factor
similarity index 100%
rename from extra/cocoa/pasteboard/pasteboard-docs.factor
rename to basis/cocoa/pasteboard/pasteboard-docs.factor
diff --git a/extra/cocoa/pasteboard/pasteboard.factor b/basis/cocoa/pasteboard/pasteboard.factor
similarity index 100%
rename from extra/cocoa/pasteboard/pasteboard.factor
rename to basis/cocoa/pasteboard/pasteboard.factor
diff --git a/extra/cocoa/pasteboard/summary.txt b/basis/cocoa/pasteboard/summary.txt
similarity index 100%
rename from extra/cocoa/pasteboard/summary.txt
rename to basis/cocoa/pasteboard/summary.txt
diff --git a/basis/cocoa/pasteboard/tags.txt b/basis/cocoa/pasteboard/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/pasteboard/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/intrinsics/authors.txt b/basis/cocoa/plists/authors.txt
similarity index 100%
rename from core/cpu/ppc/intrinsics/authors.txt
rename to basis/cocoa/plists/authors.txt
diff --git a/basis/cocoa/plists/plists.factor b/basis/cocoa/plists/plists.factor
new file mode 100644
index 0000000000..bb73b8fac3
--- /dev/null
+++ b/basis/cocoa/plists/plists.factor
@@ -0,0 +1,69 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: strings arrays hashtables assocs sequences
+cocoa.messages cocoa.classes cocoa.application cocoa kernel
+namespaces io.backend math cocoa.enumeration byte-arrays
+combinators alien.c-types core-foundation ;
+IN: cocoa.plists
+
+GENERIC: >plist ( value -- plist )
+
+M: number >plist
+    <NSNumber> ;
+M: t >plist
+    <NSNumber> ;
+M: f >plist
+    <NSNumber> ;
+M: string >plist
+    <NSString> ;
+M: byte-array >plist
+    <NSData> ;
+M: hashtable >plist
+    [ [ >plist ] bi@ ] assoc-map <NSDictionary> ;
+M: sequence >plist
+    [ >plist ] map <NSArray> ;
+
+: write-plist ( assoc path -- )
+    [ >plist ] [ normalize-path <NSString> ] bi* 0
+    -> writeToFile:atomically:
+    [ "write-plist failed" throw ] unless ;
+
+DEFER: plist>
+
+: (plist-NSString>) ( NSString -- string )
+    -> UTF8String ;
+
+: (plist-NSNumber>) ( NSNumber -- number )
+    dup -> doubleValue dup >integer =
+    [ -> longLongValue ]
+    [ -> doubleValue ] if ;
+
+: (plist-NSData>) ( NSData -- byte-array )
+    dup -> length <byte-array> [ -> getBytes: ] keep ;
+
+: (plist-NSArray>) ( NSArray -- vector )
+    [ plist> ] NSFastEnumeration-map ;    
+
+: (plist-NSDictionary>) ( NSDictionary -- hashtable )
+    dup [ [ -> valueForKey: ] keep swap [ plist> ] bi@ 2array ] with
+    NSFastEnumeration-map >hashtable ;
+
+: plist> ( plist -- value )
+    {
+        { [ dup NSString     -> isKindOfClass: c-bool> ] [ (plist-NSString>)      ] }
+        { [ dup NSNumber     -> isKindOfClass: c-bool> ] [ (plist-NSNumber>)      ] }
+        { [ dup NSData       -> isKindOfClass: c-bool> ] [ (plist-NSData>)        ] }
+        { [ dup NSArray      -> isKindOfClass: c-bool> ] [ (plist-NSArray>)       ] }
+        { [ dup NSDictionary -> isKindOfClass: c-bool> ] [ (plist-NSDictionary>)  ] }
+        [ ]
+    } cond ;
+
+: (read-plist) ( NSData -- id )
+    NSPropertyListSerialization swap kCFPropertyListImmutable f f <void*>
+    [ -> propertyListFromData:mutabilityOption:format:errorDescription: ] keep
+    *void* [ -> release "read-plist failed" throw ] when* ;
+
+: read-plist ( path -- assoc )
+    normalize-path <NSString>
+    NSData swap -> dataWithContentsOfFile:
+    [ (read-plist) plist> ] [ "read-plist failed" throw ] if* ;
diff --git a/basis/cocoa/plists/tags.txt b/basis/cocoa/plists/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/plists/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/x86/32/authors.txt b/basis/cocoa/runtime/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/x86/32/authors.txt
rename to basis/cocoa/runtime/authors.txt
diff --git a/basis/cocoa/runtime/runtime.factor b/basis/cocoa/runtime/runtime.factor
new file mode 100644
index 0000000000..3451ce5e6e
--- /dev/null
+++ b/basis/cocoa/runtime/runtime.factor
@@ -0,0 +1,77 @@
+! Copyright (C) 2006, 2007 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax ;
+IN: cocoa.runtime
+
+TYPEDEF: void* SEL
+
+TYPEDEF: void* id
+
+FUNCTION: char* sel_getName ( SEL aSelector ) ;
+
+FUNCTION: bool sel_isMapped ( SEL aSelector ) ;
+
+FUNCTION: SEL sel_registerName ( char* str ) ;
+
+TYPEDEF: void* Class
+TYPEDEF: void* Method
+TYPEDEF: void* Protocol
+
+C-STRUCT: objc-super
+    { "id" "receiver" }
+    { "Class" "class" } ;
+
+: CLS_CLASS        HEX: 1   ;
+: CLS_META         HEX: 2   ;
+: CLS_INITIALIZED  HEX: 4   ;
+: CLS_POSING       HEX: 8   ;
+: CLS_MAPPED       HEX: 10  ;
+: CLS_FLUSH_CACHE  HEX: 20  ;
+: CLS_GROW_CACHE   HEX: 40  ;
+: CLS_NEED_BIND    HEX: 80  ;
+: CLS_METHOD_ARRAY HEX: 100 ;
+
+FUNCTION: int objc_getClassList ( void* buffer, int bufferLen ) ;
+
+FUNCTION: Class objc_getClass ( char* class ) ;
+
+FUNCTION: Class objc_getMetaClass ( char* class ) ;
+
+FUNCTION: Protocol objc_getProtocol ( char* class ) ;
+
+FUNCTION: Class objc_allocateClassPair ( Class superclass, char* name, size_t extraBytes ) ;
+FUNCTION: void objc_registerClassPair ( Class cls ) ;
+
+FUNCTION: id class_createInstance ( Class class, uint additionalByteCount ) ;
+
+FUNCTION: id class_createInstanceFromZone ( Class class, uint additionalByteCount, void* zone ) ;
+
+FUNCTION: Method class_getInstanceMethod ( Class class, SEL selector ) ;
+
+FUNCTION: Method class_getClassMethod ( Class class, SEL selector ) ;
+
+FUNCTION: Method* class_copyMethodList ( Class class, uint* outCount ) ;
+
+FUNCTION: Class class_getSuperclass ( Class cls ) ;
+
+FUNCTION: char class_addMethod ( Class class, SEL name, void* imp, void* types ) ;
+
+FUNCTION: char class_addProtocol ( Class class, Protocol protocol ) ;
+
+FUNCTION: uint method_getNumberOfArguments ( Method method ) ;
+
+FUNCTION: uint method_getSizeOfArguments ( Method method ) ;
+
+FUNCTION: uint method_getArgumentInfo ( Method method, int argIndex, char** type, int* offset ) ;
+
+FUNCTION: void* method_copyReturnType ( Method method ) ;
+
+FUNCTION: void* method_copyArgumentType ( Method method, uint index ) ;
+
+FUNCTION: void* method_getTypeEncoding ( Method method ) ;
+
+FUNCTION: SEL method_getName ( Method method ) ;
+
+FUNCTION: void* method_setImplementation ( Method method, void* imp ) ; 
+
+FUNCTION: Class object_getClass ( id object ) ;
diff --git a/extra/cocoa/runtime/summary.txt b/basis/cocoa/runtime/summary.txt
similarity index 100%
rename from extra/cocoa/runtime/summary.txt
rename to basis/cocoa/runtime/summary.txt
diff --git a/basis/cocoa/runtime/tags.txt b/basis/cocoa/runtime/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/runtime/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/x86/64/authors.txt b/basis/cocoa/subclassing/authors.txt
similarity index 100%
rename from core/cpu/x86/64/authors.txt
rename to basis/cocoa/subclassing/authors.txt
diff --git a/extra/cocoa/subclassing/subclassing-docs.factor b/basis/cocoa/subclassing/subclassing-docs.factor
similarity index 100%
rename from extra/cocoa/subclassing/subclassing-docs.factor
rename to basis/cocoa/subclassing/subclassing-docs.factor
diff --git a/basis/cocoa/subclassing/subclassing.factor b/basis/cocoa/subclassing/subclassing.factor
new file mode 100755
index 0000000000..1ee39c35d5
--- /dev/null
+++ b/basis/cocoa/subclassing/subclassing.factor
@@ -0,0 +1,82 @@
+! Copyright (C) 2006, 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien alien.c-types alien.strings arrays assocs
+combinators compiler hashtables kernel libc math namespaces
+parser sequences words cocoa.messages cocoa.runtime
+compiler.units io.encodings.ascii generalizations
+continuations ;
+IN: cocoa.subclassing
+
+: init-method ( method -- sel imp types )
+    first3 swap
+    [ sel_registerName ] [ execute ] [ ascii string>alien ]
+    tri* ;
+
+: add-methods ( methods class -- )
+    swap
+    [ init-method class_addMethod drop ] with each ;
+
+: add-protocols ( protocols class -- )
+    swap [ objc-protocol class_addProtocol drop ] with each ;
+
+: (define-objc-class) ( protocols superclass name imeth -- )
+    -rot
+    [ objc-class ] dip 0 objc_allocateClassPair
+    [ add-methods ] [ add-protocols ] [ objc_registerClassPair ]
+    tri ;
+
+: encode-types ( return types -- encoding )
+    swap prefix [
+        alien>objc-types get at "0" append
+    ] map concat ;
+
+: prepare-method ( ret types quot -- type imp )
+    >r [ encode-types ] 2keep r> [
+        "cdecl" swap 4array % \ alien-callback ,
+    ] [ ] make define-temp ;
+
+: prepare-methods ( methods -- methods )
+    [
+        [ first4 prepare-method 3array ] map
+    ] with-compilation-unit ;
+
+: types= ( a b -- ? )
+    [ ascii alien>string ] bi@ = ;
+
+: (verify-method-type) ( class sel types -- )
+    [ class_getInstanceMethod method_getTypeEncoding ]
+    dip types=
+    [ "Objective-C method types cannot be changed once defined" throw ]
+    unless ;
+: verify-method-type ( class sel imp types -- class sel imp types )
+    4 ndup nip (verify-method-type) ;
+
+: (redefine-objc-method) ( class method -- )
+    init-method ! verify-method-type
+    drop
+    [ class_getInstanceMethod ] dip method_setImplementation drop ;
+    
+: redefine-objc-methods ( imeth name -- )
+    dup class-exists? [
+        objc_getClass swap [ (redefine-objc-method) ] with each
+    ] [
+        2drop
+    ] if ;
+
+SYMBOL: +name+
+SYMBOL: +protocols+
+SYMBOL: +superclass+
+
+: define-objc-class ( imeth hash -- )
+    clone [
+        prepare-methods
+        +name+ get "cocoa.classes" create drop
+        +name+ get 2dup redefine-objc-methods swap [
+            +protocols+ get , +superclass+ get , +name+ get , ,
+            \ (define-objc-class) ,
+        ] [ ] make import-objc-class
+    ] bind ;
+
+: CLASS:
+    parse-definition unclip
+    >hashtable define-objc-class ; parsing
diff --git a/extra/cocoa/subclassing/summary.txt b/basis/cocoa/subclassing/summary.txt
similarity index 100%
rename from extra/cocoa/subclassing/summary.txt
rename to basis/cocoa/subclassing/summary.txt
diff --git a/basis/cocoa/subclassing/tags.txt b/basis/cocoa/subclassing/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/subclassing/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/cocoa/summary.txt b/basis/cocoa/summary.txt
similarity index 100%
rename from extra/cocoa/summary.txt
rename to basis/cocoa/summary.txt
diff --git a/basis/cocoa/tags.txt b/basis/cocoa/tags.txt
new file mode 100644
index 0000000000..2320bdd648
--- /dev/null
+++ b/basis/cocoa/tags.txt
@@ -0,0 +1,2 @@
+unportable
+bindings
diff --git a/core/cpu/x86/allot/authors.txt b/basis/cocoa/types/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/x86/allot/authors.txt
rename to basis/cocoa/types/authors.txt
diff --git a/extra/cocoa/types/summary.txt b/basis/cocoa/types/summary.txt
similarity index 100%
rename from extra/cocoa/types/summary.txt
rename to basis/cocoa/types/summary.txt
diff --git a/basis/cocoa/types/tags.txt b/basis/cocoa/types/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/types/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/cocoa/types/types-docs.factor b/basis/cocoa/types/types-docs.factor
similarity index 100%
rename from extra/cocoa/types/types-docs.factor
rename to basis/cocoa/types/types-docs.factor
diff --git a/extra/cocoa/types/types.factor b/basis/cocoa/types/types.factor
similarity index 90%
rename from extra/cocoa/types/types.factor
rename to basis/cocoa/types/types.factor
index 7d21687e1b..dbaf311da2 100644
--- a/extra/cocoa/types/types.factor
+++ b/basis/cocoa/types/types.factor
@@ -64,3 +64,9 @@ C-STRUCT: CGAffineTransform
     { "float" "d" }
     { "float" "tx" }
     { "float" "ty" } ;
+
+C-STRUCT: NSFastEnumerationState
+    { "ulong" "state" }
+    { "id*" "itemsPtr" }
+    { "ulong*" "mutationsPtr" }
+    { "ulong[5]" "extra" } ;
diff --git a/core/cpu/x86/architecture/authors.txt b/basis/cocoa/views/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/x86/architecture/authors.txt
rename to basis/cocoa/views/authors.txt
diff --git a/extra/cocoa/views/summary.txt b/basis/cocoa/views/summary.txt
similarity index 100%
rename from extra/cocoa/views/summary.txt
rename to basis/cocoa/views/summary.txt
diff --git a/basis/cocoa/views/tags.txt b/basis/cocoa/views/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/views/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/cocoa/views/views-docs.factor b/basis/cocoa/views/views-docs.factor
similarity index 100%
rename from extra/cocoa/views/views-docs.factor
rename to basis/cocoa/views/views-docs.factor
diff --git a/extra/cocoa/views/views.factor b/basis/cocoa/views/views.factor
similarity index 77%
rename from extra/cocoa/views/views.factor
rename to basis/cocoa/views/views.factor
index ca631d5dea..8bfbe330b2 100644
--- a/extra/cocoa/views/views.factor
+++ b/basis/cocoa/views/views.factor
@@ -21,6 +21,10 @@ IN: cocoa.views
 : NSOpenGLPFASampleBuffers 55 ;
 : NSOpenGLPFASamples 56 ;
 : NSOpenGLPFAAuxDepthStencil 57 ;
+: NSOpenGLPFAColorFloat  58 ;
+: NSOpenGLPFAMultisample 59 ;
+: NSOpenGLPFASupersample 60 ;
+: NSOpenGLPFASampleAlpha 61 ;
 : NSOpenGLPFARendererID 70 ;
 : NSOpenGLPFASingleRenderer 71 ;
 : NSOpenGLPFANoRecovery 72 ;
@@ -34,25 +38,36 @@ IN: cocoa.views
 : NSOpenGLPFACompliant 83 ;
 : NSOpenGLPFAScreenMask 84 ;
 : NSOpenGLPFAPixelBuffer 90 ;
+: NSOpenGLPFAAllowOfflineRenderers 96 ;
 : NSOpenGLPFAVirtualScreenCount 128 ;
 
+: kCGLRendererGenericFloatID HEX: 00020400 ;
+
 <PRIVATE
 
 SYMBOL: +software-renderer+
+SYMBOL: +multisample+
 
 PRIVATE>
 
 : with-software-renderer ( quot -- )
-    t +software-renderer+ set
-    [ f +software-renderer+ set ]
-    [ ] cleanup ; inline
+    t +software-renderer+ pick with-variable ; inline
+: with-multisample ( quot -- )
+    t +multisample+ pick with-variable ; inline
 
 : <PixelFormat> ( -- pixelfmt )
     NSOpenGLPixelFormat -> alloc [
         NSOpenGLPFAWindow ,
         NSOpenGLPFADoubleBuffer ,
         NSOpenGLPFADepthSize , 16 ,
-        +software-renderer+ get [ NSOpenGLPFARobust , ] when
+        +software-renderer+ get [
+            NSOpenGLPFARendererID , kCGLRendererGenericFloatID ,
+        ] when
+        +multisample+ get [
+            NSOpenGLPFASupersample ,
+            NSOpenGLPFASampleBuffers , 1 ,
+            NSOpenGLPFASamples , 8 ,
+        ] when
         0 ,
     ] { } make >c-int-array
     -> initWithAttributes:
diff --git a/core/cpu/x86/assembler/authors.txt b/basis/cocoa/windows/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/cpu/x86/assembler/authors.txt
rename to basis/cocoa/windows/authors.txt
diff --git a/extra/cocoa/windows/summary.txt b/basis/cocoa/windows/summary.txt
similarity index 100%
rename from extra/cocoa/windows/summary.txt
rename to basis/cocoa/windows/summary.txt
diff --git a/basis/cocoa/windows/tags.txt b/basis/cocoa/windows/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cocoa/windows/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/cocoa/windows/windows-docs.factor b/basis/cocoa/windows/windows-docs.factor
similarity index 100%
rename from extra/cocoa/windows/windows-docs.factor
rename to basis/cocoa/windows/windows-docs.factor
diff --git a/extra/cocoa/windows/windows.factor b/basis/cocoa/windows/windows.factor
similarity index 97%
rename from extra/cocoa/windows/windows.factor
rename to basis/cocoa/windows/windows.factor
index 74a181f9a2..dd2d1bfd41 100755
--- a/extra/cocoa/windows/windows.factor
+++ b/basis/cocoa/windows/windows.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006, 2007 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays kernel math cocoa cocoa.messages cocoa.classes
-sequences math.bitfields ;
+sequences math.bitwise ;
 IN: cocoa.windows
 
 : NSBorderlessWindowMask     0 ; inline
diff --git a/core/cpu/x86/authors.txt b/basis/colors/authors.txt
similarity index 100%
rename from core/cpu/x86/authors.txt
rename to basis/colors/authors.txt
diff --git a/basis/colors/colors.factor b/basis/colors/colors.factor
new file mode 100644
index 0000000000..77a1f46c87
--- /dev/null
+++ b/basis/colors/colors.factor
@@ -0,0 +1,48 @@
+! Copyright (C) 2003, 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: kernel combinators sequences arrays classes.tuple accessors colors.hsv ;
+
+IN: colors
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+TUPLE: color ;
+
+TUPLE: rgba < color red green blue alpha ;
+
+TUPLE: hsva < color hue saturation value alpha ;
+
+TUPLE: gray < color gray alpha ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+GENERIC: >rgba ( object -- rgba )
+
+M: rgba >rgba ( rgba -- rgba ) ;
+
+M: hsva >rgba ( hsva -- rgba )
+  { [ hue>> ] [ saturation>> ] [ value>> ] [ alpha>> ] } cleave 4array
+  [ hsv>rgb ] [ peek ] bi suffix first4 rgba boa ;
+
+M: gray >rgba ( gray -- rgba ) [ gray>> dup dup ] [ alpha>> ] bi rgba boa ;
+
+M: color red>>   ( color -- red   ) >rgba red>>   ;
+M: color green>> ( color -- green ) >rgba green>> ;
+M: color blue>>  ( color -- blue  ) >rgba blue>>  ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: black        T{ rgba f 0.0   0.0   0.0   1.0  } ;
+: blue         T{ rgba f 0.0   0.0   1.0   1.0  } ;
+: cyan         T{ rgba f 0     0.941 0.941 1    } ;
+: gray         T{ rgba f 0.6   0.6   0.6   1.0  } ;
+: green        T{ rgba f 0.0   1.0   0.0   1.0  } ;
+: light-gray   T{ rgba f 0.95  0.95  0.95  0.95 } ;
+: light-purple T{ rgba f 0.8   0.8   1.0   1.0  } ;
+: magenta      T{ rgba f 0.941 0     0.941 1    } ;
+: orange       T{ rgba f 0.941 0.627 0     1    } ;
+: purple       T{ rgba f 0.627 0     0.941 1    } ;
+: red          T{ rgba f 1.0   0.0   0.0   1.0  } ;
+: white        T{ rgba f 1.0   1.0   1.0   1.0  } ;
+: yellow       T{ rgba f 1.0   1.0   0.0   1.0  } ;
diff --git a/core/cpu/x86/intrinsics/authors.txt b/basis/colors/hsv/authors.txt
similarity index 100%
rename from core/cpu/x86/intrinsics/authors.txt
rename to basis/colors/hsv/authors.txt
diff --git a/extra/colors/hsv/hsv.factor b/basis/colors/hsv/hsv.factor
similarity index 100%
rename from extra/colors/hsv/hsv.factor
rename to basis/colors/hsv/hsv.factor
diff --git a/extra/columns/authors.txt b/basis/columns/authors.txt
similarity index 100%
rename from extra/columns/authors.txt
rename to basis/columns/authors.txt
diff --git a/extra/columns/columns-docs.factor b/basis/columns/columns-docs.factor
similarity index 68%
rename from extra/columns/columns-docs.factor
rename to basis/columns/columns-docs.factor
index a2f0cccf3b..818ce2f752 100644
--- a/extra/columns/columns-docs.factor
+++ b/basis/columns/columns-docs.factor
@@ -4,14 +4,16 @@ IN: columns
 ARTICLE: "columns" "Column sequences"
 "A " { $emphasis "column" } " presents a column of a matrix represented as a sequence of rows:"
 { $subsection column }
-{ $subsection <column> } ;
+{ $subsection <column> }
+"A utility word:"
+{ $subsection <flipped> } ;
 
 HELP: column
 { $class-description "A virtual sequence which presents a fixed column of a matrix represented as a sequence of rows. New instances can be created by calling " { $link <column> } "." } ;
 
 HELP: <column> ( seq n -- column )
 { $values { "seq" sequence } { "n" "a non-negative integer" } { "column" column } }
-{ $description "Outputs a new virtual sequence which presents a fixed column of a matrix represented as a sequence of rows." "The " { $snippet "i" } "th element of a column is the " { $snippet "n" } "th element of the " { $snippet "i" } "th element of" { $snippet "seq" } ". Every element of " { $snippet "seq" } " must be a sequence, and all sequences must have equal length." }
+{ $description "Outputs a new virtual sequence which presents a fixed column of a matrix represented as a sequence of rows." "The " { $snippet "i" } "th element of a column is the " { $snippet "n" } "th element of the " { $snippet "i" } "th element of " { $snippet "seq" } ". Every element of " { $snippet "seq" } " must be a sequence, and all sequences must have equal length." }
 { $examples
     { $example
         "USING: arrays prettyprint columns ;"
@@ -23,4 +25,9 @@ HELP: <column> ( seq n -- column )
     "In the same sense that " { $link <reversed> } " is a virtual variant of " { $link reverse } ", " { $link <column> } " is a virtual variant of " { $snippet "swap [ nth ] curry map" } "."
 } ;
 
+HELP: <flipped>
+{ $values { "seq" sequence } { "seq'" sequence } }
+{ $description "Outputs a new virtual sequence which presents the transpose of " { $snippet "seq" } "." }
+{ $notes "This is the virtual sequence equivalent of " { $link flip } "." } ;
+
 ABOUT: "columns"
diff --git a/extra/columns/columns-tests.factor b/basis/columns/columns-tests.factor
similarity index 100%
rename from extra/columns/columns-tests.factor
rename to basis/columns/columns-tests.factor
diff --git a/extra/columns/columns.factor b/basis/columns/columns.factor
similarity index 80%
rename from extra/columns/columns.factor
rename to basis/columns/columns.factor
index 7e4a7fd408..5ac8531f58 100644
--- a/extra/columns/columns.factor
+++ b/basis/columns/columns.factor
@@ -13,3 +13,6 @@ M: column virtual@ dup col>> -rot seq>> nth bounds-check ;
 M: column length seq>> length ;
 
 INSTANCE: column virtual-sequence
+
+: <flipped> ( seq -- seq' )
+    dup empty? [ dup first length [ <column> ] with map ] unless ;
diff --git a/extra/columns/summary.txt b/basis/columns/summary.txt
similarity index 100%
rename from extra/columns/summary.txt
rename to basis/columns/summary.txt
diff --git a/extra/arrays/lib/tags.txt b/basis/columns/tags.txt
similarity index 100%
rename from extra/arrays/lib/tags.txt
rename to basis/columns/tags.txt
diff --git a/basis/combinators/short-circuit/short-circuit-tests.factor b/basis/combinators/short-circuit/short-circuit-tests.factor
new file mode 100644
index 0000000000..e392d67d2a
--- /dev/null
+++ b/basis/combinators/short-circuit/short-circuit-tests.factor
@@ -0,0 +1,32 @@
+
+USING: kernel math tools.test combinators.short-circuit ;
+
+IN: combinators.short-circuit.tests
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: must-be-t ( in -- ) [ t ] swap unit-test ;
+: must-be-f ( in -- ) [ f ] swap unit-test ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[       { [ 1 ] [ 2 ] [ 3 ] }           0&&  3 = ] must-be-t
+[ 3     { [ 0 > ] [ odd? ] [ 2 + ] }    1&&  5 = ] must-be-t
+[ 10 20 { [ + 0 > ] [ - even? ] [ + ] } 2&& 30 = ] must-be-t
+
+[       { [ 1 ] [ f ] [ 3 ] } 0&&  3 = ]          must-be-f
+[ 3     { [ 0 > ] [ even? ] [ 2 + ] } 1&& ]       must-be-f
+[ 10 20 { [ + 0 > ] [ - odd? ] [ + ] } 2&& 30 = ] must-be-f
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[ { [ 10 0 < ] [ f ] [ "factor" ] } 0|| "factor" = ] must-be-t
+
+[ 10 { [ odd? ] [ 100 > ] [ 1 + ] } 1|| 11 = ]       must-be-t
+
+[ 10 20 { [ + odd? ] [ + 100 > ] [ + ] } 2|| 30 = ]  must-be-t
+
+[ { [ 10 0 < ] [ f ] [ 0 1 = ] } 0|| ] must-be-f
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/basis/combinators/short-circuit/short-circuit.factor b/basis/combinators/short-circuit/short-circuit.factor
new file mode 100755
index 0000000000..a484e09de1
--- /dev/null
+++ b/basis/combinators/short-circuit/short-circuit.factor
@@ -0,0 +1,35 @@
+
+USING: kernel combinators quotations arrays sequences assocs
+       locals generalizations macros fry ;
+
+IN: combinators.short-circuit
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+:: n&&-rewrite ( quots N -- quot )
+   quots
+     [ '[ drop N ndup @ dup not ] [ drop N ndrop f ] 2array ]
+   map
+   [ t ] [ N nnip ] 2array suffix
+   '[ f , cond ] ;
+
+MACRO: 0&& ( quots -- quot ) 0 n&&-rewrite ;
+MACRO: 1&& ( quots -- quot ) 1 n&&-rewrite ;
+MACRO: 2&& ( quots -- quot ) 2 n&&-rewrite ;
+MACRO: 3&& ( quots -- quot ) 3 n&&-rewrite ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+:: n||-rewrite ( quots N -- quot )
+   quots
+     [ '[ drop N ndup @ dup ] [ N nnip ] 2array ]
+   map
+   [ drop N ndrop t ] [ f ] 2array suffix
+   '[ f , cond ] ;
+
+MACRO: 0|| ( quots -- quot ) 0 n||-rewrite ;
+MACRO: 1|| ( quots -- quot ) 1 n||-rewrite ;
+MACRO: 2|| ( quots -- quot ) 2 n||-rewrite ;
+MACRO: 3|| ( quots -- quot ) 3 n||-rewrite ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
diff --git a/basis/combinators/short-circuit/smart/smart-tests.factor b/basis/combinators/short-circuit/smart/smart-tests.factor
new file mode 100644
index 0000000000..7ec4a0e657
--- /dev/null
+++ b/basis/combinators/short-circuit/smart/smart-tests.factor
@@ -0,0 +1,32 @@
+
+USING: kernel math tools.test combinators.short-circuit.smart ;
+
+IN: combinators.short-circuit.smart.tests
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: must-be-t ( in -- ) [ t ] swap unit-test ;
+: must-be-f ( in -- ) [ f ] swap unit-test ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[       { [ 1 ] [ 2 ] [ 3 ] }          &&  3 = ] must-be-t
+[ 3     { [ 0 > ] [ odd? ] [ 2 + ] }    &&  5 = ] must-be-t
+[ 10 20 { [ + 0 > ] [ - even? ] [ + ] } && 30 = ] must-be-t
+
+[       { [ 1 ] [ f ] [ 3 ] } &&  3 = ]          must-be-f
+[ 3     { [ 0 > ] [ even? ] [ 2 + ] } && ]       must-be-f
+[ 10 20 { [ + 0 > ] [ - odd? ] [ + ] } && 30 = ] must-be-f
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[ { [ 10 0 < ] [ f ] [ "factor" ] } || "factor" = ] must-be-t
+
+[ 10 { [ odd? ] [ 100 > ] [ 1 + ] } || 11 = ]       must-be-t
+
+[ 10 20 { [ + odd? ] [ + 100 > ] [ + ] } || 30 = ]  must-be-t
+
+[ { [ 10 0 < ] [ f ] [ 0 1 = ] } || ] must-be-f
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/basis/combinators/short-circuit/smart/smart.factor b/basis/combinators/short-circuit/smart/smart.factor
new file mode 100644
index 0000000000..ca659cacbe
--- /dev/null
+++ b/basis/combinators/short-circuit/smart/smart.factor
@@ -0,0 +1,18 @@
+
+USING: kernel sequences math stack-checker effects accessors macros
+       combinators.short-circuit ;
+
+IN: combinators.short-circuit.smart
+
+<PRIVATE
+
+: arity ( quots -- n )
+    first infer
+    dup terminated?>> [ "Cannot determine arity" throw ] when
+    effect-height neg 1+ ;
+
+PRIVATE>
+
+MACRO: && ( quots -- quot ) dup arity n&&-rewrite ;
+
+MACRO: || ( quots -- quot ) dup arity n||-rewrite ;
diff --git a/core/cpu/x86/sse2/authors.txt b/basis/command-line/authors.txt
similarity index 100%
rename from core/cpu/x86/sse2/authors.txt
rename to basis/command-line/authors.txt
diff --git a/core/command-line/command-line-docs.factor b/basis/command-line/command-line-docs.factor
similarity index 98%
rename from core/command-line/command-line-docs.factor
rename to basis/command-line/command-line-docs.factor
index 88ea43be20..440896deac 100644
--- a/core/command-line/command-line-docs.factor
+++ b/basis/command-line/command-line-docs.factor
@@ -52,9 +52,14 @@ ARTICLE: "standard-cli-args" "Command line switches for general usage"
     { { $snippet "-script" } { "Equivalent to " { $snippet "-quiet -run=none" } "." $nl "On Unix systems, Factor can be used for scripting - just create an executable text file whose first line is:" { $code "#! /usr/local/bin/factor -script" } "The space after " { $snippet "#!" } " is necessary because of Factor syntax." } }
 } ;
 
-ARTICLE: "cli" "Command line usage"
+ARTICLE: "rc-files" "Running code on startup"
 "Unless the " { $snippet "-no-user-init" } " command line switch is specified, The startup routine runs the " { $snippet ".factor-rc" } " file in the user's home directory, if it exists. This file can contain initialization and customization for your development environment."
 $nl
+"The " { $snippet ".factor-rc" } " and " { $snippet ".factor-boot-rc" } " files can be run explicitly:"
+{ $subsection run-user-init }
+{ $subsection run-bootstrap-init } ;
+
+ARTICLE: "cli" "Command line usage"
 "Zero or more command line arguments may be passed to the Factor runtime. Command line arguments starting with a dash (" { $snippet "-" } ") is interpreted as switches. All other arguments are taken to be file names to be run by " { $link run-file } "."
 $nl
 "Switches can take one of the following three forms:"
@@ -68,9 +73,6 @@ $nl
 { $subsection "standard-cli-args" }
 "The list of command line arguments can be obtained and inspected directly:"
 { $subsection cli-args }
-"The " { $snippet ".factor-rc" } " and " { $snippet ".factor-boot-rc" } " files can be run explicitly:"
-{ $subsection run-user-init }
-{ $subsection run-bootstrap-init }
 "There is a way to override the default vocabulary to run on startup:"
 { $subsection main-vocab-hook } ;
 
diff --git a/core/command-line/command-line-tests.factor b/basis/command-line/command-line-tests.factor
similarity index 100%
rename from core/command-line/command-line-tests.factor
rename to basis/command-line/command-line-tests.factor
diff --git a/core/command-line/command-line.factor b/basis/command-line/command-line.factor
similarity index 93%
rename from core/command-line/command-line.factor
rename to basis/command-line/command-line.factor
index 84020abca0..37dbf9b7a6 100644
--- a/core/command-line/command-line.factor
+++ b/basis/command-line/command-line.factor
@@ -1,8 +1,8 @@
-! Copyright (C) 2003, 2007 Slava Pestov.
+! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: init continuations debugger hashtables io kernel
 kernel.private namespaces parser sequences strings system
-splitting io.files ;
+splitting io.files eval ;
 IN: command-line
 
 : run-bootstrap-init ( -- )
@@ -36,7 +36,7 @@ SYMBOL: main-vocab-hook
         main-vocab-hook get [ call ] [ "listener" ] if*
     ] if ;
 
-: default-cli-args
+: default-cli-args ( -- )
     global [
         "quiet" off
         "script" off
diff --git a/core/command-line/summary.txt b/basis/command-line/summary.txt
similarity index 100%
rename from core/command-line/summary.txt
rename to basis/command-line/summary.txt
diff --git a/core/debugger/authors.txt b/basis/compiler/authors.txt
similarity index 100%
rename from core/debugger/authors.txt
rename to basis/compiler/authors.txt
diff --git a/core/compiler/compiler-docs.factor b/basis/compiler/compiler-docs.factor
similarity index 93%
rename from core/compiler/compiler-docs.factor
rename to basis/compiler/compiler-docs.factor
index 341d56f1d5..1f941a0f88 100755
--- a/core/compiler/compiler-docs.factor
+++ b/basis/compiler/compiler-docs.factor
@@ -1,4 +1,4 @@
-USING: generator help.markup help.syntax words io parser
+USING: compiler.generator help.markup help.syntax words io parser
 assocs words.private sequences compiler.units ;
 IN: compiler
 
@@ -26,7 +26,9 @@ ARTICLE: "compiler" "Optimizing compiler"
 }
 "The optimizing compiler only compiles words which have a static stack effect. This means that methods defined on fundamental generic words such as " { $link nth } " should have a static stack effect; for otherwise, most of the system would be compiled with the non-optimizing compiler. See " { $link "inference" } " and " { $link "cookbook-pitfalls" } "."
 { $subsection "compiler-usage" }
-{ $subsection "compiler-errors" } ;
+{ $subsection "compiler-errors" }
+{ $subsection "hints" }
+{ $subsection "generator" } ;
 
 ABOUT: "compiler"
 
diff --git a/basis/compiler/compiler.factor b/basis/compiler/compiler.factor
new file mode 100755
index 0000000000..2dd6e440d5
--- /dev/null
+++ b/basis/compiler/compiler.factor
@@ -0,0 +1,90 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel namespaces arrays sequences io debugger words fry
+compiler.units continuations vocabs assocs dlists definitions
+math threads graphs generic combinators deques search-deques
+stack-checker stack-checker.state compiler.generator
+compiler.errors compiler.tree.builder compiler.tree.optimizer ;
+IN: compiler
+
+SYMBOL: +failed+
+
+: ripple-up ( words -- )
+    dup "compiled-effect" word-prop +failed+ eq?
+    [ usage [ word? ] filter ] [ compiled-usage keys ] if
+    [ queue-compile ] each ;
+
+: ripple-up? ( word effect -- ? )
+    #! If the word has previously been compiled and had a
+    #! different stack effect, we have to recompile any callers.
+    swap "compiled-effect" word-prop [ = not ] keep and ;
+
+: save-effect ( word effect -- )
+    [ dupd ripple-up? [ ripple-up ] [ drop ] if ]
+    [ "compiled-effect" set-word-prop ]
+    2bi ;
+
+: compile-begins ( word -- )
+    f swap compiler-error ;
+
+: compile-failed ( word error -- )
+    [ swap compiler-error ]
+    [
+        drop
+        [ compiled-unxref ]
+        [ f swap compiled get set-at ]
+        [ +failed+ save-effect ]
+        tri
+    ] 2bi ;
+
+: compile-succeeded ( effect word -- )
+    [ swap save-effect ]
+    [ compiled-unxref ]
+    [
+        dup crossref?
+        [
+            dependencies get >alist
+            generic-dependencies get >alist
+            compiled-xref
+        ] [ drop ] if
+    ] tri ;
+
+: (compile) ( word -- )
+    '[
+        H{ } clone dependencies set
+        H{ } clone generic-dependencies set
+
+        , {
+            [ compile-begins ]
+            [
+                [ build-tree-from-word ] [ compile-failed return ] recover
+                optimize-tree
+            ]
+            [ dup generate ]
+            [ compile-succeeded ]
+        } cleave
+    ] with-return ;
+
+: compile-loop ( deque -- )
+    [ (compile) yield ] slurp-deque ;
+
+: decompile ( word -- )
+    f 2array 1array t modify-code-heap ;
+
+: optimized-recompile-hook ( words -- alist )
+    [
+        <hashed-dlist> compile-queue set
+        H{ } clone compiled set
+        [ queue-compile ] each
+        compile-queue get compile-loop
+        compiled get >alist
+    ] with-scope ;
+
+: enable-compiler ( -- )
+    [ optimized-recompile-hook ] recompile-hook set-global ;
+
+: disable-compiler ( -- )
+    [ default-recompile-hook ] recompile-hook set-global ;
+
+: recompile-all ( -- )
+    forget-errors all-words compile ;
diff --git a/core/float-arrays/authors.txt b/basis/compiler/constants/authors.txt
similarity index 100%
rename from core/float-arrays/authors.txt
rename to basis/compiler/constants/authors.txt
diff --git a/basis/compiler/constants/constants.factor b/basis/compiler/constants/constants.factor
new file mode 100755
index 0000000000..80f0b4f515
--- /dev/null
+++ b/basis/compiler/constants/constants.factor
@@ -0,0 +1,25 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math kernel layouts system ;
+IN: compiler.constants
+
+! These constants must match vm/memory.h
+: card-bits 8 ;
+: deck-bits 18 ;
+: card-mark ( -- n ) HEX: 40 HEX: 80 bitor ;
+
+! These constants must match vm/layouts.h
+: header-offset ( -- n ) object tag-number neg ;
+: float-offset ( -- n ) 8 float tag-number - ;
+: string-offset ( -- n ) 4 bootstrap-cells object tag-number - ;
+: profile-count-offset ( -- n ) 7 bootstrap-cells object tag-number - ;
+: byte-array-offset ( -- n ) 2 bootstrap-cells object tag-number - ;
+: alien-offset ( -- n ) 3 bootstrap-cells object tag-number - ;
+: underlying-alien-offset ( -- n ) bootstrap-cell object tag-number - ;
+: tuple-class-offset ( -- n ) bootstrap-cell tuple tag-number - ;
+: class-hash-offset ( -- n ) bootstrap-cell object tag-number - ;
+: word-xt-offset ( -- n ) 9 bootstrap-cells object tag-number - ;
+: quot-xt-offset ( -- n ) 3 bootstrap-cells object tag-number - ;
+: word-code-offset ( -- n ) 10 bootstrap-cells object tag-number - ;
+: array-start-offset ( -- n ) 2 bootstrap-cells object tag-number - ;
+: compiled-header-size ( -- n ) 4 bootstrap-cells ;
diff --git a/core/compiler/constants/summary.txt b/basis/compiler/constants/summary.txt
similarity index 100%
rename from core/compiler/constants/summary.txt
rename to basis/compiler/constants/summary.txt
diff --git a/core/generator/authors.txt b/basis/compiler/generator/authors.txt
similarity index 100%
rename from core/generator/authors.txt
rename to basis/compiler/generator/authors.txt
diff --git a/core/generator/fixup/authors.txt b/basis/compiler/generator/fixup/authors.txt
similarity index 100%
rename from core/generator/fixup/authors.txt
rename to basis/compiler/generator/fixup/authors.txt
diff --git a/core/generator/fixup/fixup-docs.factor b/basis/compiler/generator/fixup/fixup-docs.factor
similarity index 74%
rename from core/generator/fixup/fixup-docs.factor
rename to basis/compiler/generator/fixup/fixup-docs.factor
index 64d733ef8c..a119d153e6 100644
--- a/core/generator/fixup/fixup-docs.factor
+++ b/basis/compiler/generator/fixup/fixup-docs.factor
@@ -1,6 +1,6 @@
 USING: help.syntax help.markup math kernel
-words strings alien ;
-IN: generator.fixup
+words strings alien compiler.generator ;
+IN: compiler.generator.fixup
 
 HELP: frame-required
 { $values { "n" "a non-negative integer" } }
@@ -14,3 +14,6 @@ HELP: rel-dlsym
 { $values { "name" string } { "dll" "a " { $link dll } " or " { $link f } } { "class" "a relocation class" } }
 { $description "Records that the most recently assembled instruction contains a reference to the " { $snippet "name" } " symbol from " { $snippet "dll" } ". The correct " { $snippet "class" } " to use depends on instruction formats."
 } ;
+
+HELP: literal-table
+{ $var-description "Holds a vector of literal objects referenced from the currently compiling word. If " { $link compiled-stack-traces? } " is on, " { $link begin-compiling } " ensures that the first entry is the word being compiled." } ;
diff --git a/core/generator/fixup/fixup.factor b/basis/compiler/generator/fixup/fixup.factor
similarity index 91%
rename from core/generator/fixup/fixup.factor
rename to basis/compiler/generator/fixup/fixup.factor
index a0961984ed..5a3337fb32 100755
--- a/core/generator/fixup/fixup.factor
+++ b/basis/compiler/generator/fixup/fixup.factor
@@ -3,9 +3,9 @@
 USING: arrays byte-arrays generic assocs hashtables io.binary
 kernel kernel.private math namespaces sequences words
 quotations strings alien.accessors alien.strings layouts system
-combinators math.bitfields words.private cpu.architecture
+combinators math.bitwise words.private cpu.architecture
 math.order accessors growable ;
-IN: generator.fixup
+IN: compiler.generator.fixup
 
 : no-stack-frame -1 ; inline
 
@@ -15,7 +15,7 @@ TUPLE: frame-required n ;
 
 : stack-frame-size ( code -- n )
     no-stack-frame [
-        dup frame-required? [ frame-required-n max ] [ drop ] if
+        dup frame-required? [ n>> max ] [ drop ] if
     ] reduce ;
 
 GENERIC: fixup* ( frame-size obj -- frame-size )
@@ -29,7 +29,7 @@ TUPLE: label offset ;
 : <label> ( -- label ) label new ;
 
 M: label fixup*
-    compiled-offset swap set-label-offset ;
+    compiled-offset >>offset drop ;
 
 : define-label ( name -- ) <label> swap set ;
 
@@ -72,6 +72,7 @@ SYMBOL: label-table
 : rt-xt        4 ;
 : rt-here      5 ;
 : rt-label     6 ;
+: rt-immediate 7 ;
 
 TUPLE: label-fixup label class ;
 
@@ -88,7 +89,7 @@ TUPLE: rel-fixup arg class type ;
 : rel-fixup ( arg class type -- ) \ rel-fixup boa , ;
 
 : push-4 ( value vector -- )
-    [ length ] [ B{ 0 0 0 0 } swap push-all ] [ underlying ] tri
+    [ length ] [ B{ 0 0 0 0 } swap push-all ] [ underlying>> ] tri
     swap set-alien-unsigned-4 ;
 
 M: rel-fixup fixup*
@@ -120,7 +121,7 @@ SYMBOL: literal-table
     >r add-literal r> rt-xt rel-fixup ;
 
 : rel-primitive ( word class -- )
-    >r word-def first r> rt-primitive rel-fixup ;
+    >r def>> first r> rt-primitive rel-fixup ;
 
 : rel-literal ( literal class -- )
     >r add-literal r> rt-literal rel-fixup ;
@@ -137,7 +138,7 @@ SYMBOL: literal-table
 
 : resolve-labels ( labels -- labels' )
     [
-        first3 label-offset
+        first3 offset>>
         [ "Unresolved label" throw ] unless*
         3array
     ] map concat ;
diff --git a/core/generator/fixup/summary.txt b/basis/compiler/generator/fixup/summary.txt
similarity index 100%
rename from core/generator/fixup/summary.txt
rename to basis/compiler/generator/fixup/summary.txt
diff --git a/core/generator/generator-docs.factor b/basis/compiler/generator/generator-docs.factor
similarity index 80%
rename from core/generator/generator-docs.factor
rename to basis/compiler/generator/generator-docs.factor
index 432a2a0008..45238ab00a 100755
--- a/core/generator/generator-docs.factor
+++ b/basis/compiler/generator/generator-docs.factor
@@ -1,7 +1,7 @@
-USING: help.markup help.syntax words debugger generator.fixup
-generator.registers quotations kernel vectors arrays effects
-sequences ;
-IN: generator
+USING: help.markup help.syntax words debugger
+compiler.generator.fixup compiler.generator.registers quotations
+kernel vectors arrays effects sequences ;
+IN: compiler.generator
 
 ARTICLE: "generator" "Compiled code generator"
 "Most of the words in the " { $vocab-link "generator" } " vocabulary are internal to the compiler and user code has no reason to call them."
@@ -31,16 +31,13 @@ HELP: compiled-stack-traces?
 { $values { "?" "a boolean" } }
 { $description "Iftrue, compiled code blocks will retain what word they were compiled from. This information is used by " { $link :c } " to display call stack traces after an error is thrown from compiled code. This is on by default; the deployment tool switches it off to save some space in the deployed image." } ;
 
-HELP: literal-table
-{ $var-description "Holds a vector of literal objects referenced from the currently compiling word. If " { $link compiled-stack-traces? } " is on, " { $link begin-compiling } " ensures that the first entry is the word being compiled." } ;
-
 HELP: begin-compiling
 { $values { "word" word } { "label" word } }
 { $description "Prepares to generate machine code for a word." } ;
 
 HELP: with-generator
-{ $values { "node" "a dataflow node" } { "word" word } { "label" word } { "quot" "a quotation with stack effect " { $snippet "( node -- )" } } }
-{ $description "Generates machine code for " { $snippet "label" } " by applying the quotation to the dataflow node." } ;
+{ $values { "nodes" "a sequence of nodes" } { "word" word } { "label" word } { "quot" "a quotation with stack effect " { $snippet "( node -- )" } } }
+{ $description "Generates machine code for " { $snippet "label" } " by applying the quotation to the sequence of nodes." } ;
 
 HELP: generate-node
 { $values { "node" "a dataflow node" } { "next" "a dataflow node" } }
@@ -48,17 +45,13 @@ HELP: generate-node
 { $notes "This word can only be called from inside the quotation passed to " { $link with-generator } "." } ;
 
 HELP: generate-nodes
-{ $values { "node" "a dataflow node" } } 
+{ $values { "nodes" "a sequence of nodes" } } 
 { $description "Recursively generate machine code for a dataflow graph." }
 { $notes "This word can only be called from inside the quotation passed to " { $link with-generator } "." } ;
 
 HELP: generate
-{ $values { "word" word } { "label" word } { "node" "a dataflow node" } }
-{ $description "Generates machine code for " { $snippet "label" } " from " { $snippet "node" } ". The value of " { $snippet "word" } " is retained for debugging purposes; it is the word which will appear in a call stack trace if this compiled code block throws an error when run." } ;
-
-HELP: word-dataflow
-{ $values { "word" word } { "effect" effect } { "dataflow" "a dataflow graph" } }
-{ $description "Outputs the dataflow graph of a word, taking specializers into account (see " { $link "specializers" } ")." } ;
+{ $values { "word" word } { "label" word } { "nodes" "a sequence of nodes" } }
+{ $description "Generates machine code for " { $snippet "label" } " from " { $snippet "nodes" } ". The value of " { $snippet "word" } " is retained for debugging purposes; it is the word which will appear in a call stack trace if this compiled code block throws an error when run." } ;
 
 HELP: define-intrinsics
 { $values { "word" word } { "intrinsics" "a sequence of " { $snippet "{ quot assoc }" } " pairs" } }
diff --git a/basis/compiler/generator/generator.factor b/basis/compiler/generator/generator.factor
new file mode 100755
index 0000000000..da120ce432
--- /dev/null
+++ b/basis/compiler/generator/generator.factor
@@ -0,0 +1,587 @@
+ ! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs classes combinators
+cpu.architecture effects generic hashtables io kernel
+kernel.private layouts math math.parser namespaces prettyprint
+quotations sequences system threads words vectors sets deques
+continuations.private summary alien alien.c-types
+alien.structs alien.strings alien.arrays libc compiler.errors
+stack-checker.inlining
+compiler.tree compiler.tree.builder compiler.tree.combinators
+compiler.tree.propagation.info compiler.generator.fixup
+compiler.generator.registers compiler.generator.iterator ;
+IN: compiler.generator
+
+SYMBOL: compile-queue
+SYMBOL: compiled
+
+: queue-compile ( word -- )
+    {
+        { [ dup "forgotten" word-prop ] [ ] }
+        { [ dup compiled get key? ] [ ] }
+        { [ dup inlined-block? ] [ ] }
+        { [ dup primitive? ] [ ] }
+        [ dup compile-queue get push-front ]
+    } cond drop ;
+
+: maybe-compile ( word -- )
+    dup compiled>> [ drop ] [ queue-compile ] if ;
+
+SYMBOL: compiling-word
+
+SYMBOL: compiling-label
+
+SYMBOL: compiling-loops
+
+! Label of current word, after prologue, makes recursion faster
+SYMBOL: current-label-start
+
+: compiled-stack-traces? ( -- ? ) 59 getenv ;
+
+: begin-compiling ( word label -- )
+    H{ } clone compiling-loops set
+    compiling-label set
+    compiling-word set
+    compiled-stack-traces?
+    compiling-word get f ?
+    1vector literal-table set
+    f compiling-label get compiled get set-at ;
+
+: save-machine-code ( literals relocation labels code -- )
+    4array compiling-label get compiled get set-at ;
+
+: with-generator ( nodes word label quot -- )
+    [
+        >r begin-compiling r>
+        { } make fixup
+        save-machine-code
+    ] with-scope ; inline
+
+GENERIC: generate-node ( node -- next )
+
+: generate-nodes ( nodes -- )
+    [ current-node generate-node ] iterate-nodes
+    end-basic-block ;
+
+: init-generate-nodes ( -- )
+    init-templates
+    %save-word-xt
+    %prologue-later
+    current-label-start define-label
+    current-label-start resolve-label ;
+
+: generate ( nodes word label -- )
+    [
+        init-generate-nodes
+        [ generate-nodes ] with-node-iterator
+    ] with-generator ;
+
+: intrinsics ( #call -- quot )
+    word>> "intrinsics" word-prop ;
+
+: if-intrinsics ( #call -- quot )
+    word>> "if-intrinsics" word-prop ;
+
+! node
+M: node generate-node drop iterate-next ;
+
+: %jump ( word -- )
+    dup compiling-label get eq?
+    [ drop current-label-start get ] [ %epilogue-later ] if
+    %jump-label ;
+
+: generate-call ( label -- next )
+    dup maybe-compile
+    end-basic-block
+    dup compiling-loops get at [
+        %jump-label f
+    ] [
+        tail-call? [
+            %jump f
+        ] [
+            0 frame-required
+            %call
+            iterate-next
+        ] if
+    ] ?if ;
+
+! #recursive
+: compile-recursive ( node -- next )
+    dup label>> id>> generate-call >r
+    [ child>> ] [ label>> word>> ] [ label>> id>> ] tri generate
+    r> ;
+
+: compiling-loop ( word -- )
+    <label> dup resolve-label swap compiling-loops get set-at ;
+
+: compile-loop ( node -- next )
+    end-basic-block
+    [ label>> id>> compiling-loop ] [ child>> generate-nodes ] bi
+    iterate-next ;
+
+M: #recursive generate-node
+    dup label>> loop?>> [ compile-loop ] [ compile-recursive ] if ;
+
+! #if
+: end-false-branch ( label -- )
+    tail-call? [ %return drop ] [ %jump-label ] if ;
+
+: generate-branch ( nodes -- )
+    [ copy-templates generate-nodes ] with-scope ;
+
+: generate-if ( node label -- next )
+    <label> [
+        >r >r children>> first2 swap generate-branch
+        r> r> end-false-branch resolve-label
+        generate-branch
+        init-templates
+    ] keep resolve-label iterate-next ;
+
+M: #if generate-node
+    [ <label> dup %jump-f ]
+    H{ { +input+ { { f "flag" } } } }
+    with-template
+    generate-if ;
+
+! #dispatch
+: dispatch-branch ( nodes word -- label )
+    gensym [
+        [
+            copy-templates
+            %save-dispatch-xt
+            %prologue-later
+            [ generate-nodes ] with-node-iterator
+            %return
+        ] with-generator
+    ] keep ;
+
+: dispatch-branches ( node -- )
+    children>> [
+        compiling-word get dispatch-branch
+        %dispatch-label
+    ] each ;
+
+: generate-dispatch ( node -- )
+    %dispatch dispatch-branches init-templates ;
+
+M: #dispatch generate-node
+    #! The order here is important, dispatch-branches must
+    #! run after %dispatch, so that each branch gets the
+    #! correct register state
+    tail-call? [
+        generate-dispatch iterate-next
+    ] [
+        compiling-word get gensym [
+            [
+                init-generate-nodes
+                generate-dispatch
+            ] with-generator
+        ] keep generate-call
+    ] if ;
+
+! #call
+: define-intrinsics ( word intrinsics -- )
+    "intrinsics" set-word-prop ;
+
+: define-intrinsic ( word quot assoc -- )
+    2array 1array define-intrinsics ;
+
+: define-if>branch-intrinsics ( word intrinsics -- )
+    "if-intrinsics" set-word-prop ;
+
+: if>boolean-intrinsic ( quot -- )
+    "false" define-label
+    "end" define-label
+    "false" get swap call
+    t "if-scratch" get load-literal
+    "end" get %jump-label
+    "false" resolve-label
+    f "if-scratch" get load-literal
+    "end" resolve-label
+    "if-scratch" get phantom-push ; inline
+
+: define-if>boolean-intrinsics ( word intrinsics -- )
+    [
+        >r [ if>boolean-intrinsic ] curry r>
+        { { f "if-scratch" } } +scratch+ associate assoc-union
+    ] assoc-map "intrinsics" set-word-prop ;
+
+: define-if-intrinsics ( word intrinsics -- )
+    [ +input+ associate ] assoc-map
+    2dup define-if>branch-intrinsics
+    define-if>boolean-intrinsics ;
+
+: define-if-intrinsic ( word quot inputs -- )
+    2array 1array define-if-intrinsics ;
+
+: do-if-intrinsic ( pair -- next )
+    <label> [ swap do-template skip-next ] keep generate-if ;
+
+: find-intrinsic ( #call -- pair/f )
+    intrinsics find-template ;
+
+: find-if-intrinsic ( #call -- pair/f )
+    node@ {
+        { [ dup length 2 < ] [ 2drop f ] }
+        { [ dup second #if? ] [ drop if-intrinsics find-template ] }
+        [ 2drop f ]
+    } cond ;
+
+M: #call generate-node
+    dup node-input-infos [ class>> ] map set-operand-classes
+    dup find-if-intrinsic [
+        do-if-intrinsic
+    ] [
+        dup find-intrinsic [
+            do-template iterate-next
+        ] [
+            word>> generate-call
+        ] ?if
+    ] ?if ;
+
+! #call-recursive
+M: #call-recursive generate-node label>> id>> generate-call ;
+
+! #push
+M: #push generate-node
+    literal>> <constant> phantom-push iterate-next ;
+
+! #shuffle
+M: #shuffle generate-node
+    shuffle-effect phantom-shuffle iterate-next ;
+
+M: #>r generate-node
+    [ in-d>> length ] [ out-r>> empty? ] bi
+    [ phantom-drop ] [ phantom->r ] if
+    iterate-next ;
+
+M: #r> generate-node
+    [ in-r>> length ] [ out-d>> empty? ] bi
+    [ phantom-rdrop ] [ phantom-r> ] if
+    iterate-next ;
+
+! #return
+M: #return generate-node
+    drop end-basic-block %return f ;
+
+M: #return-recursive generate-node
+    end-basic-block
+    label>> id>> compiling-loops get key?
+    [ %return ] unless f ;
+
+! #alien-invoke
+: large-struct? ( ctype -- ? )
+    dup c-struct? [
+        heap-size struct-small-enough? not
+    ] [ drop f ] if ;
+
+: alien-parameters ( params -- seq )
+    dup parameters>>
+    swap return>> large-struct? [ "void*" prefix ] when ;
+
+: alien-return ( params -- ctype )
+    return>> dup large-struct? [ drop "void" ] when ;
+
+: c-type-stack-align ( type -- align )
+    dup c-type-stack-align? [ c-type-align ] [ drop cell ] if ;
+
+: parameter-align ( n type -- n delta )
+    over >r c-type-stack-align align dup r> - ;
+
+: parameter-sizes ( types -- total offsets )
+    #! Compute stack frame locations.
+    [
+        0 [
+            [ parameter-align drop dup , ] keep stack-size +
+        ] reduce cell align
+    ] { } make ;
+
+: return-size ( ctype -- n )
+    #! Amount of space we reserve for a return value.
+    dup large-struct? [ heap-size ] [ drop 0 ] if ;
+
+: alien-stack-frame ( params -- n )
+    alien-parameters parameter-sizes drop ;
+
+: alien-invoke-frame ( params -- n )
+    #! One cell is temporary storage, temp@
+    dup return>> return-size
+    swap alien-stack-frame +
+    cell + ;
+
+: set-stack-frame ( n -- )
+    dup [ frame-required ] when* \ stack-frame set ;
+
+: with-stack-frame ( n quot -- )
+    swap set-stack-frame
+    call
+    f set-stack-frame ; inline
+
+GENERIC: reg-size ( register-class -- n )
+
+M: int-regs reg-size drop cell ;
+
+M: single-float-regs reg-size drop 4 ;
+
+M: double-float-regs reg-size drop 8 ;
+
+M: stack-params reg-size drop "void*" heap-size ;
+
+GENERIC: reg-class-variable ( register-class -- symbol )
+
+M: reg-class reg-class-variable ;
+
+M: float-regs reg-class-variable drop float-regs ;
+
+M: stack-params reg-class-variable drop stack-params ;
+
+GENERIC: inc-reg-class ( register-class -- )
+
+M: reg-class inc-reg-class
+    dup reg-class-variable inc
+    fp-shadows-int? [ reg-size stack-params +@ ] [ drop ] if ;
+
+M: float-regs inc-reg-class
+    dup call-next-method
+    fp-shadows-int? [ reg-size cell /i int-regs +@ ] [ drop ] if ;
+
+: reg-class-full? ( class -- ? )
+    [ reg-class-variable get ] [ param-regs length ] bi >= ;
+
+: spill-param ( reg-class -- n reg-class )
+    stack-params get
+    >r reg-size stack-params +@ r>
+    stack-params ;
+
+: fastcall-param ( reg-class -- n reg-class )
+    [ reg-class-variable get ] [ inc-reg-class ] [ ] tri ;
+
+: alloc-parameter ( parameter -- reg reg-class )
+    c-type-reg-class dup reg-class-full?
+    [ spill-param ] [ fastcall-param ] if
+    [ param-reg ] keep ;
+
+: (flatten-int-type) ( size -- )
+    cell /i "void*" c-type <repetition> % ;
+
+GENERIC: flatten-value-type ( type -- )
+
+M: object flatten-value-type , ;
+
+M: struct-type flatten-value-type ( type -- )
+    stack-size cell align (flatten-int-type) ;
+
+M: long-long-type flatten-value-type ( type -- )
+    stack-size cell align (flatten-int-type) ;
+
+: flatten-value-types ( params -- params )
+    #! Convert value type structs to consecutive void*s.
+    [
+        0 [
+            c-type
+            [ parameter-align (flatten-int-type) ] keep
+            [ stack-size cell align + ] keep
+            flatten-value-type
+        ] reduce drop
+    ] { } make ;
+
+: each-parameter ( parameters quot -- )
+    >r [ parameter-sizes nip ] keep r> 2each ; inline
+
+: reverse-each-parameter ( parameters quot -- )
+    >r [ parameter-sizes nip ] keep r> 2reverse-each ; inline
+
+: reset-freg-counts ( -- )
+    { int-regs float-regs stack-params } [ 0 swap set ] each ;
+
+: with-param-regs ( quot -- )
+    #! In quot you can call alloc-parameter
+    [ reset-freg-counts call ] with-scope ; inline
+
+: move-parameters ( node word -- )
+    #! Moves values from C stack to registers (if word is
+    #! %load-param-reg) and registers to C stack (if word is
+    #! %save-param-reg).
+    >r
+    alien-parameters
+    flatten-value-types
+    r> [ >r alloc-parameter r> execute ] curry each-parameter ;
+    inline
+
+: unbox-parameters ( offset node -- )
+    parameters>> [
+        %prepare-unbox >r over + r> unbox-parameter
+    ] reverse-each-parameter drop ;
+
+: prepare-box-struct ( node -- offset )
+    #! Return offset on C stack where to store unboxed
+    #! parameters. If the C function is returning a structure,
+    #! the first parameter is an implicit target area pointer,
+    #! so we need to use a different offset.
+    return>> dup large-struct?
+    [ heap-size %prepare-box-struct cell ] [ drop 0 ] if ;
+
+: objects>registers ( params -- )
+    #! Generate code for unboxing a list of C types, then
+    #! generate code for moving these parameters to register on
+    #! architectures where parameters are passed in registers.
+    [
+        [ prepare-box-struct ] keep
+        [ unbox-parameters ] keep
+        \ %load-param-reg move-parameters
+    ] with-param-regs ;
+
+: box-return* ( node -- )
+    return>> [ ] [ box-return ] if-void ;
+
+TUPLE: no-such-library name ;
+
+M: no-such-library summary
+    drop "Library not found" ;
+
+M: no-such-library compiler-error-type
+    drop +linkage+ ;
+
+: no-such-library ( name -- )
+    \ no-such-library boa
+    compiling-word get compiler-error ;
+
+TUPLE: no-such-symbol name ;
+
+M: no-such-symbol summary
+    drop "Symbol not found" ;
+
+M: no-such-symbol compiler-error-type
+    drop +linkage+ ;
+
+: no-such-symbol ( name -- )
+    \ no-such-symbol boa
+    compiling-word get compiler-error ;
+
+: check-dlsym ( symbols dll -- )
+    dup dll-valid? [
+        dupd [ dlsym ] curry contains?
+        [ drop ] [ no-such-symbol ] if
+    ] [
+        dll-path no-such-library drop
+    ] if ;
+
+: stdcall-mangle ( symbol node -- symbol )
+    "@"
+    swap parameters>> parameter-sizes drop
+    number>string 3append ;
+
+: alien-invoke-dlsym ( params -- symbols dll )
+    dup function>> dup pick stdcall-mangle 2array
+    swap library>> library dup [ dll>> ] when
+    2dup check-dlsym ;
+
+M: #alien-invoke generate-node
+    params>>
+    dup alien-invoke-frame [
+        end-basic-block
+        %prepare-alien-invoke
+        dup objects>registers
+        %prepare-var-args
+        dup alien-invoke-dlsym %alien-invoke
+        dup %cleanup
+        box-return*
+        iterate-next
+    ] with-stack-frame ;
+
+! #alien-indirect
+M: #alien-indirect generate-node
+    params>>
+    dup alien-invoke-frame [
+        ! Flush registers
+        end-basic-block
+        ! Save registers for GC
+        %prepare-alien-invoke
+        ! Save alien at top of stack to temporary storage
+        %prepare-alien-indirect
+        dup objects>registers
+        %prepare-var-args
+        ! Call alien in temporary storage
+        %alien-indirect
+        dup %cleanup
+        box-return*
+        iterate-next
+    ] with-stack-frame ;
+
+! #alien-callback
+: box-parameters ( params -- )
+    alien-parameters [ box-parameter ] each-parameter ;
+
+: registers>objects ( node -- )
+    [
+        dup \ %save-param-reg move-parameters
+        "nest_stacks" f %alien-invoke
+        box-parameters
+    ] with-param-regs ;
+
+TUPLE: callback-context ;
+
+: current-callback 2 getenv ;
+
+: wait-to-return ( token -- )
+    dup current-callback eq? [
+        drop
+    ] [
+        yield wait-to-return
+    ] if ;
+
+: do-callback ( quot token -- )
+    init-catchstack
+    dup 2 setenv
+    slip
+    wait-to-return ; inline
+
+: callback-return-quot ( ctype -- quot )
+    return>> {
+        { [ dup "void" = ] [ drop [ ] ] }
+        { [ dup large-struct? ] [ heap-size [ memcpy ] curry ] }
+        [ c-type c-type-unboxer-quot ]
+    } cond ;
+
+: callback-prep-quot ( params -- quot )
+    parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
+
+: wrap-callback-quot ( params -- quot )
+    [
+        [ callback-prep-quot ]
+        [ quot>> ]
+        [ callback-return-quot ] tri 3append ,
+        [ callback-context new do-callback ] %
+    ] [ ] make ;
+
+: %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
+
+: callback-unwind ( params -- n )
+    {
+        { [ dup abi>> "stdcall" = ] [ alien-stack-frame ] }
+        { [ dup return>> large-struct? ] [ drop 4 ] }
+        [ drop 0 ]
+    } cond ;
+
+: %callback-return ( params -- )
+    #! All the extra book-keeping for %unwind is only for x86.
+    #! On other platforms its an alias for %return.
+    dup alien-return
+    [ %unnest-stacks ] [ %callback-value ] if-void
+    callback-unwind %unwind ;
+
+: generate-callback ( params -- )
+    dup xt>> dup [
+        init-templates
+        %prologue-later
+        dup alien-stack-frame [
+            [ registers>objects ]
+            [ wrap-callback-quot %alien-callback ]
+            [ %callback-return ]
+            tri
+        ] with-stack-frame
+    ] with-generator ;
+
+M: #alien-callback generate-node
+    end-basic-block
+    params>> generate-callback iterate-next ;
diff --git a/basis/compiler/generator/iterator/iterator.factor b/basis/compiler/generator/iterator/iterator.factor
new file mode 100644
index 0000000000..203216b1c0
--- /dev/null
+++ b/basis/compiler/generator/iterator/iterator.factor
@@ -0,0 +1,45 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces sequences kernel compiler.tree ;
+IN: compiler.generator.iterator
+
+SYMBOL: node-stack
+
+: >node ( cursor -- ) node-stack get push ;
+: node> ( -- cursor ) node-stack get pop ;
+: node@ ( -- cursor ) node-stack get peek ;
+: current-node ( -- node ) node@ first ;
+: iterate-next ( -- cursor ) node@ rest-slice ;
+: skip-next ( -- next ) node> rest-slice [ first ] [ >node ] bi ;
+
+: iterate-nodes ( cursor quot: ( -- ) -- )
+    over empty? [
+        2drop
+    ] [
+        [ swap >node call node> drop ] keep iterate-nodes
+    ] if ; inline recursive
+
+: with-node-iterator ( quot -- )
+    >r V{ } clone node-stack r> with-variable ; inline
+
+DEFER: (tail-call?)
+
+: tail-phi? ( cursor -- ? )
+    [ first #phi? ] [ rest-slice (tail-call?) ] bi and ;
+
+: (tail-call?) ( cursor -- ? )
+    [ t ] [
+        [ first [ #return? ] [ #terminate? ] bi or ]
+        [ tail-phi? ]
+        bi or
+    ] if-empty ;
+
+: tail-call? ( -- ? )
+    node-stack get [
+        rest-slice
+        [ t ] [
+            [ (tail-call?) ]
+            [ first #terminate? not ]
+            bi and
+        ] if-empty
+    ] all? ;
diff --git a/core/generator/registers/authors.txt b/basis/compiler/generator/registers/authors.txt
similarity index 100%
rename from core/generator/registers/authors.txt
rename to basis/compiler/generator/registers/authors.txt
diff --git a/core/generator/registers/registers.factor b/basis/compiler/generator/registers/registers.factor
similarity index 86%
rename from core/generator/registers/registers.factor
rename to basis/compiler/generator/registers/registers.factor
index c5e1ea54a6..e909db3f83 100755
--- a/core/generator/registers/registers.factor
+++ b/basis/compiler/generator/registers/registers.factor
@@ -1,11 +1,11 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays assocs classes classes.private classes.algebra
-combinators cpu.architecture generator.fixup hashtables kernel
-layouts math namespaces quotations sequences system vectors
-words effects alien byte-arrays bit-arrays float-arrays
-accessors sets math.order ;
-IN: generator.registers
+combinators hashtables kernel layouts math namespaces quotations
+sequences system vectors words effects alien byte-arrays
+accessors sets math.order cpu.architecture
+compiler.generator.fixup ;
+IN: compiler.generator.registers
 
 SYMBOL: +input+
 SYMBOL: +output+
@@ -67,25 +67,23 @@ INSTANCE: temp-reg value
 ! A data stack location.
 TUPLE: ds-loc n class ;
 
-: <ds-loc> f ds-loc boa ;
+: <ds-loc> ( n -- loc ) f ds-loc boa ;
 
-M: ds-loc minimal-ds-loc* ds-loc-n min ;
-M: ds-loc operand-class* ds-loc-class ;
-M: ds-loc set-operand-class set-ds-loc-class ;
+M: ds-loc minimal-ds-loc* n>> min ;
 M: ds-loc live-loc?
-    over ds-loc? [ [ ds-loc-n ] bi@ = not ] [ 2drop t ] if ;
+    over ds-loc? [ [ n>> ] bi@ = not ] [ 2drop t ] if ;
 
 ! A retain stack location.
 TUPLE: rs-loc n class ;
 
-: <rs-loc> f rs-loc boa ;
-M: rs-loc operand-class* rs-loc-class ;
-M: rs-loc set-operand-class set-rs-loc-class ;
+: <rs-loc> ( n -- loc ) f rs-loc boa ;
 M: rs-loc live-loc?
-    over rs-loc? [ [ rs-loc-n ] bi@ = not ] [ 2drop t ] if ;
+    over rs-loc? [ [ n>> ] bi@ = not ] [ 2drop t ] if ;
 
 UNION: loc ds-loc rs-loc ;
 
+M: loc operand-class* class>> ;
+M: loc set-operand-class (>>class) ;
 M: loc move-spec drop loc ;
 
 INSTANCE: loc value
@@ -102,16 +100,16 @@ TUPLE: cached loc vreg ;
 
 C: <cached> cached
 
-M: cached set-operand-class cached-vreg set-operand-class ;
-M: cached operand-class* cached-vreg operand-class* ;
+M: cached set-operand-class vreg>> set-operand-class ;
+M: cached operand-class* vreg>> operand-class* ;
 M: cached move-spec drop cached ;
-M: cached live-vregs* cached-vreg live-vregs* ;
-M: cached live-loc? cached-loc live-loc? ;
-M: cached (lazy-load) >r cached-vreg r> (lazy-load) ;
+M: cached live-vregs* vreg>> live-vregs* ;
+M: cached live-loc? loc>> live-loc? ;
+M: cached (lazy-load) >r vreg>> r> (lazy-load) ;
 M: cached lazy-store
-    2dup cached-loc live-loc?
+    2dup loc>> live-loc?
     [ "live-locs" get at %move ] [ 2drop ] if ;
-M: cached minimal-ds-loc* cached-loc minimal-ds-loc* ;
+M: cached minimal-ds-loc* loc>> minimal-ds-loc* ;
 
 INSTANCE: cached value
 
@@ -121,55 +119,55 @@ TUPLE: tagged vreg class ;
 : <tagged> ( vreg -- tagged )
     f tagged boa ;
 
-M: tagged v>operand tagged-vreg v>operand ;
-M: tagged set-operand-class set-tagged-class ;
-M: tagged operand-class* tagged-class ;
+M: tagged v>operand vreg>> v>operand ;
+M: tagged set-operand-class (>>class) ;
+M: tagged operand-class* class>> ;
 M: tagged move-spec drop f ;
-M: tagged live-vregs* tagged-vreg , ;
+M: tagged live-vregs* vreg>> , ;
 
 INSTANCE: tagged value
 
 ! Unboxed alien pointers
 TUPLE: unboxed-alien vreg ;
 C: <unboxed-alien> unboxed-alien
-M: unboxed-alien v>operand unboxed-alien-vreg v>operand ;
+M: unboxed-alien v>operand vreg>> v>operand ;
 M: unboxed-alien operand-class* drop simple-alien ;
 M: unboxed-alien move-spec class ;
-M: unboxed-alien live-vregs* unboxed-alien-vreg , ;
+M: unboxed-alien live-vregs* vreg>> , ;
 
 INSTANCE: unboxed-alien value
 
 TUPLE: unboxed-byte-array vreg ;
 C: <unboxed-byte-array> unboxed-byte-array
-M: unboxed-byte-array v>operand unboxed-byte-array-vreg v>operand ;
+M: unboxed-byte-array v>operand vreg>> v>operand ;
 M: unboxed-byte-array operand-class* drop c-ptr ;
 M: unboxed-byte-array move-spec class ;
-M: unboxed-byte-array live-vregs* unboxed-byte-array-vreg , ;
+M: unboxed-byte-array live-vregs* vreg>> , ;
 
 INSTANCE: unboxed-byte-array value
 
 TUPLE: unboxed-f vreg ;
 C: <unboxed-f> unboxed-f
-M: unboxed-f v>operand unboxed-f-vreg v>operand ;
+M: unboxed-f v>operand vreg>> v>operand ;
 M: unboxed-f operand-class* drop \ f ;
 M: unboxed-f move-spec class ;
-M: unboxed-f live-vregs* unboxed-f-vreg , ;
+M: unboxed-f live-vregs* vreg>> , ;
 
 INSTANCE: unboxed-f value
 
 TUPLE: unboxed-c-ptr vreg ;
 C: <unboxed-c-ptr> unboxed-c-ptr
-M: unboxed-c-ptr v>operand unboxed-c-ptr-vreg v>operand ;
+M: unboxed-c-ptr v>operand vreg>> v>operand ;
 M: unboxed-c-ptr operand-class* drop c-ptr ;
 M: unboxed-c-ptr move-spec class ;
-M: unboxed-c-ptr live-vregs* unboxed-c-ptr-vreg , ;
+M: unboxed-c-ptr live-vregs* vreg>> , ;
 
 INSTANCE: unboxed-c-ptr value
 
 ! A constant value
 TUPLE: constant value ;
 C: <constant> constant
-M: constant operand-class* constant-value class ;
+M: constant operand-class* value>> class ;
 M: constant move-spec class ;
 
 INSTANCE: constant value
@@ -177,15 +175,13 @@ INSTANCE: constant value
 <PRIVATE
 
 ! Moving values between locations and registers
-: %move-bug "Bug in generator.registers" throw ;
+: %move-bug ( -- * ) "Bug in generator.registers" throw ;
 
 : %unbox-c-ptr ( dst src -- )
     dup operand-class {
         { [ dup \ f class<= ] [ drop %unbox-f ] }
         { [ dup simple-alien class<= ] [ drop %unbox-alien ] }
         { [ dup byte-array class<= ] [ drop %unbox-byte-array ] }
-        { [ dup bit-array class<= ] [ drop %unbox-byte-array ] }
-        { [ dup float-array class<= ] [ drop %unbox-byte-array ] }
         [ drop %unbox-any-c-ptr ]
     } cond ; inline
 
@@ -195,7 +191,9 @@ INSTANCE: constant value
     #! temp then temp to the destination.
     temp-reg over %move
     operand-class temp-reg
-    { set-operand-class set-tagged-vreg } tagged construct
+    tagged new
+        swap >>vreg
+        swap >>class
     %move ;
 
 : %move ( dst src -- )
@@ -204,7 +202,7 @@ INSTANCE: constant value
         { { f unboxed-c-ptr } [ %move-bug ] }
         { { f unboxed-byte-array } [ %move-bug ] }
 
-        { { f constant } [ constant-value swap load-literal ] }
+        { { f constant } [ value>> swap load-literal ] }
 
         { { f float } [ %box-float ] }
         { { f unboxed-alien } [ %box-alien ] }
@@ -231,7 +229,7 @@ GENERIC: finalize-height ( stack -- )
 : new-phantom-stack ( class -- stack )
     >r 0 V{ } clone r> boa ; inline
 
-: (loc)
+: (loc) ( m stack -- n )
     #! Utility for methods on <loc>
     height>> - ;
 
@@ -420,7 +418,7 @@ M: loc lazy-store
     #! with the area of the data stack above the stack pointer
     find-tmp-loc slow-shuffle-mapping [
         [
-            swap dup cached? [ cached-vreg ] when %move
+            swap dup cached? [ vreg>> ] when %move
         ] assoc-each
     ] keep >hashtable do-shuffle ;
 
@@ -480,7 +478,7 @@ M: loc lazy-store
 : substitute-vreg? ( old new -- ? )
     #! We don't substitute locs for float or alien vregs,
     #! since in those cases the boxing overhead might kill us.
-    cached-vreg tagged? >r loc? r> and ;
+    vreg>> tagged? >r loc? r> and ;
 
 : substitute-vregs ( values vregs -- )
     [ vreg-substitution ] 2map
@@ -488,7 +486,7 @@ M: loc lazy-store
     [ >r stack>> r> substitute-here ] curry each-phantom ;
 
 : set-operand ( value var -- )
-    >r dup constant? [ constant-value ] when r> set ;
+    >r dup constant? [ value>> ] when r> set ;
 
 : lazy-load ( values template -- )
     #! Set operand vars here.
@@ -506,7 +504,7 @@ M: loc lazy-store
 
 : clash? ( seq -- ? )
     phantoms [ stack>> ] bi@ append [
-        dup cached? [ cached-vreg ] when swap member?
+        dup cached? [ vreg>> ] when swap member?
     ] with contains? ;
 
 : outputs-clash? ( -- ? )
@@ -516,7 +514,7 @@ M: loc lazy-store
 
 : count-input-vregs ( phantom spec -- )
     phantom&spec [
-        >r dup cached? [ cached-vreg ] when r> first allocation
+        >r dup cached? [ vreg>> ] when r> first allocation
     ] 2map count-vregs ;
 
 : count-scratch-regs ( spec -- )
@@ -557,18 +555,15 @@ M: loc lazy-store
     #! the value is always good.
     dup quotation? [
         over constant?
-        [ >r constant-value r> call ] [ 2drop f ] if
+        [ >r value>> r> call ] [ 2drop f ] if
     ] [
         2drop t
     ] if ;
 
-: class-tag ( class -- tag/f )
-    class-tags dup length 1 = [ first ] [ drop f ] if ;
-
 : class-matches? ( actual expected -- ? )
     {
         { f [ drop t ] }
-        { known-tag [ class-tag >boolean ] }
+        { known-tag [ dup [ class-tag >boolean ] when ] }
         [ class<= ]
     } case ;
 
@@ -639,7 +634,7 @@ PRIVATE>
     [ second template-matches? ] find nip ;
 
 : operand-tag ( operand -- tag/f )
-    operand-class class-tag ;
+    operand-class dup [ class-tag ] when ;
 
 UNION: immediate fixnum POSTPONE: f ;
 
@@ -651,8 +646,8 @@ UNION: immediate fixnum POSTPONE: f ;
     phantom-datastack get stack>> push ;
 
 : phantom-shuffle ( shuffle -- )
-    [ effect-in length phantom-datastack get phantom-input ] keep
-    shuffle* phantom-datastack get phantom-append ;
+    [ in>> length phantom-datastack get phantom-input ] keep
+    shuffle phantom-datastack get phantom-append ;
 
 : phantom->r ( n -- )
     phantom-datastack get phantom-input
@@ -661,3 +656,9 @@ UNION: immediate fixnum POSTPONE: f ;
 : phantom-r> ( n -- )
     phantom-retainstack get phantom-input
     phantom-datastack get phantom-append ;
+
+: phantom-drop ( n -- )
+    phantom-datastack get phantom-input drop ;
+
+: phantom-rdrop ( n -- )
+    phantom-retainstack get phantom-input drop ;
diff --git a/core/generator/registers/summary.txt b/basis/compiler/generator/registers/summary.txt
similarity index 100%
rename from core/generator/registers/summary.txt
rename to basis/compiler/generator/registers/summary.txt
diff --git a/core/generator/summary.txt b/basis/compiler/generator/summary.txt
similarity index 100%
rename from core/generator/summary.txt
rename to basis/compiler/generator/summary.txt
diff --git a/core/compiler/tags.txt b/basis/compiler/generator/tags.txt
similarity index 100%
rename from core/compiler/tags.txt
rename to basis/compiler/generator/tags.txt
diff --git a/basis/compiler/intrinsics/intrinsics.factor b/basis/compiler/intrinsics/intrinsics.factor
new file mode 100644
index 0000000000..b995e6d737
--- /dev/null
+++ b/basis/compiler/intrinsics/intrinsics.factor
@@ -0,0 +1,23 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel classes.tuple classes.tuple.private math arrays 
+byte-arrays words stack-checker.known-words ;
+IN: compiler.intrinsics
+
+: (tuple) ( layout -- tuple )
+    "BUG: missing (tuple) intrinsic" throw ;
+
+\ (tuple) { tuple-layout } { tuple } define-primitive
+\ (tuple) make-flushable
+
+: (array) ( n -- array )
+    "BUG: missing (array) intrinsic" throw ;
+
+\ (array) { integer } { array } define-primitive
+\ (array) make-flushable
+
+: (byte-array) ( n -- byte-array )
+    "BUG: missing (byte-array) intrinsic" throw ;
+
+\ (byte-array) { integer } { byte-array } define-primitive
+\ (byte-array) make-flushable
diff --git a/core/compiler/summary.txt b/basis/compiler/summary.txt
similarity index 100%
rename from core/compiler/summary.txt
rename to basis/compiler/summary.txt
diff --git a/core/cpu/architecture/tags.txt b/basis/compiler/tags.txt
similarity index 100%
rename from core/cpu/architecture/tags.txt
rename to basis/compiler/tags.txt
diff --git a/core/alien/compiler/compiler-tests.factor b/basis/compiler/tests/alien.factor
similarity index 81%
rename from core/alien/compiler/compiler-tests.factor
rename to basis/compiler/tests/alien.factor
index 5d847e364f..e44ae681ff 100755
--- a/core/alien/compiler/compiler-tests.factor
+++ b/basis/compiler/tests/alien.factor
@@ -1,9 +1,9 @@
-IN: alien.compiler.tests
+IN: compiler.tests
 USING: alien alien.c-types alien.syntax compiler kernel
-namespaces namespaces tools.test sequences inference words
-arrays parser quotations continuations inference.backend effects
-namespaces.private io io.streams.string memory system threads
-tools.test math ;
+namespaces namespaces tools.test sequences stack-checker
+stack-checker.errors words arrays parser quotations
+continuations effects namespaces.private io io.streams.string
+memory system threads tools.test math accessors ;
 
 FUNCTION: void ffi_test_0 ;
 [ ] [ ffi_test_0 ] unit-test
@@ -77,16 +77,23 @@ FUNCTION: tiny ffi_test_17 int x ;
 
 [ [ alien-indirect ] infer ] [ inference-error? ] must-fail-with
 
-: indirect-test-1
+: indirect-test-1 ( ptr -- result )
     "int" { } "cdecl" alien-indirect ;
 
 { 1 1 } [ indirect-test-1 ] must-infer-as
 
 [ 3 ] [ "ffi_test_1" f dlsym indirect-test-1 ] unit-test
 
+: indirect-test-1' ( ptr -- )
+    "int" { } "cdecl" alien-indirect drop ;
+
+{ 1 0 } [ indirect-test-1' ] must-infer-as
+
+[ ] [ "ffi_test_1" f dlsym indirect-test-1' ] unit-test
+
 [ -1 indirect-test-1 ] must-fail
 
-: indirect-test-2
+: indirect-test-2 ( x y ptr -- result )
     "int" { "int" "int" } "cdecl" alien-indirect gc ;
 
 { 3 1 } [ indirect-test-2 ] must-infer-as
@@ -95,14 +102,14 @@ FUNCTION: tiny ffi_test_17 int x ;
 [ 2 3 "ffi_test_2" f dlsym indirect-test-2 ]
 unit-test
 
-: indirect-test-3
+: indirect-test-3 ( a b c d ptr -- result )
     "int" { "int" "int" "int" "int" } "stdcall" alien-indirect
     gc ;
 
 << "f-stdcall" f "stdcall" add-library >>
 
 [ f ] [ "f-stdcall" load-library ] unit-test
-[ "stdcall" ] [ "f-stdcall" library library-abi ] unit-test
+[ "stdcall" ] [ "f-stdcall" library abi>> ] unit-test
 
 : ffi_test_18 ( w x y z -- int )
     "int" "f-stdcall" "ffi_test_18" { "int" "int" "int" "int" }
@@ -139,7 +146,7 @@ FUNCTION: void ffi_test_20 double x1, double x2, double x3,
 
 ! Make sure XT doesn't get clobbered in stack frame
 
-: ffi_test_31
+: ffi_test_31 ( a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a ptr -- result y )
     "void"
     f "ffi_test_31"
     { "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" "int" }
@@ -272,7 +279,7 @@ FUNCTION: double ffi_test_35 test-struct-11 x int y ;
 
 C-STRUCT: test-struct-12 { "int" "a" } { "double" "x" } ;
 
-: make-struct-12
+: make-struct-12 ( x -- alien )
     "test-struct-12" <c-object>
     [ set-test-struct-12-x ] keep ;
 
@@ -286,21 +293,21 @@ FUNCTION: ulonglong ffi_test_38 ( ulonglong x, ulonglong y ) ;
 
 ! Test callbacks
 
-: callback-1 "void" { } "cdecl" [ ] alien-callback ;
+: callback-1 ( -- callback ) "void" { } "cdecl" [ ] alien-callback ;
 
-[ 0 1 ] [ [ callback-1 ] infer dup effect-in swap effect-out ] unit-test
+[ 0 1 ] [ [ callback-1 ] infer [ in>> ] [ out>> ] bi ] unit-test
 
 [ t ] [ callback-1 alien? ] unit-test
 
-: callback_test_1 "void" { } "cdecl" alien-indirect ;
+: callback_test_1 ( ptr -- ) "void" { } "cdecl" alien-indirect ;
 
 [ ] [ callback-1 callback_test_1 ] unit-test
 
-: callback-2 "void" { } "cdecl" [ [ 5 throw ] ignore-errors ] alien-callback ;
+: callback-2 ( -- callback ) "void" { } "cdecl" [ [ 5 throw ] ignore-errors ] alien-callback ;
 
 [ ] [ callback-2 callback_test_1 ] unit-test
 
-: callback-3 "void" { } "cdecl" [ 5 "x" set ] alien-callback ;
+: callback-3 ( -- callback ) "void" { } "cdecl" [ 5 "x" set ] alien-callback ;
 
 [ t ] [
     namestack*
@@ -314,7 +321,7 @@ FUNCTION: ulonglong ffi_test_38 ( ulonglong x, ulonglong y ) ;
     ] with-scope
 ] unit-test
 
-: callback-4
+: callback-4 ( -- callback )
     "void" { } "cdecl" [ "Hello world" write ] alien-callback
     gc ;
 
@@ -322,14 +329,14 @@ FUNCTION: ulonglong ffi_test_38 ( ulonglong x, ulonglong y ) ;
     [ callback-4 callback_test_1 ] with-string-writer
 ] unit-test
 
-: callback-5
+: callback-5 ( -- callback )
     "void" { } "cdecl" [ gc ] alien-callback ;
 
 [ "testing" ] [
     "testing" callback-5 callback_test_1
 ] unit-test
 
-: callback-5a
+: callback-5a ( -- callback )
     "void" { } "cdecl" [ 8000000 f <array> drop ] alien-callback ;
 
 ! Hack; if we're on ARM, we probably don't have much RAM, so
@@ -340,26 +347,26 @@ FUNCTION: ulonglong ffi_test_38 ( ulonglong x, ulonglong y ) ;
 !     ] unit-test
 ! ] unless
 
-: callback-6
+: callback-6 ( -- callback )
     "void" { } "cdecl" [ [ continue ] callcc0 ] alien-callback ;
 
 [ 1 2 3 ] [ callback-6 callback_test_1 1 2 3 ] unit-test
 
-: callback-7
+: callback-7 ( -- callback )
     "void" { } "cdecl" [ 1000 sleep ] alien-callback ;
 
 [ 1 2 3 ] [ callback-7 callback_test_1 1 2 3 ] unit-test
 
 [ f ] [ namespace global eq? ] unit-test
 
-: callback-8
+: callback-8 ( -- callback )
     "void" { } "cdecl" [
         [ continue ] callcc0
     ] alien-callback ;
 
 [ ] [ callback-8 callback_test_1 ] unit-test
 
-: callback-9
+: callback-9 ( -- callback )
     "int" { "int" "int" "int" } "cdecl" [
         + + 1+
     ] alien-callback ;
@@ -373,3 +380,24 @@ FUNCTION: int ffi_test_37 ( void* func ) ;
 [ 1 ] [ callback-9 ffi_test_37 ] unit-test
 
 [ 7 ] [ callback-9 ffi_test_37 ] unit-test
+
+C-STRUCT: test_struct_13
+{ "float" "x1" }
+{ "float" "x2" }
+{ "float" "x3" }
+{ "float" "x4" }
+{ "float" "x5" }
+{ "float" "x6" } ;
+
+: make-test-struct-13 ( -- alien )
+    "test_struct_13" <c-object>
+        1.0 over set-test_struct_13-x1
+        2.0 over set-test_struct_13-x2
+        3.0 over set-test_struct_13-x3
+        4.0 over set-test_struct_13-x4
+        5.0 over set-test_struct_13-x5
+        6.0 over set-test_struct_13-x6 ;
+
+FUNCTION: int ffi_test_39 ( long a, long b, test_struct_13 s ) ;
+
+[ 21 ] [ 12347 12347 make-test-struct-13 ffi_test_39 ] unit-test
diff --git a/core/compiler/tests/curry.factor b/basis/compiler/tests/curry.factor
similarity index 100%
rename from core/compiler/tests/curry.factor
rename to basis/compiler/tests/curry.factor
diff --git a/core/compiler/tests/float.factor b/basis/compiler/tests/float.factor
similarity index 100%
rename from core/compiler/tests/float.factor
rename to basis/compiler/tests/float.factor
diff --git a/basis/compiler/tests/folding.factor b/basis/compiler/tests/folding.factor
new file mode 100644
index 0000000000..d6868fd034
--- /dev/null
+++ b/basis/compiler/tests/folding.factor
@@ -0,0 +1,30 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel classes.mixin arrays ;
+IN: compiler.tests
+
+! Calls to generic words were not folded away.
+
+[ ] [ [ "compiler.tests.redefine11" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: math arrays ;
+    IN: compiler.tests.folding
+    GENERIC: foldable-generic ( a -- b ) foldable
+    M: integer foldable-generic f <array> ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USING: math arrays ;
+    IN: compiler.tests.folding
+    : fold-test ( -- x ) 10 foldable-generic ;
+    "> eval
+] unit-test
+
+[ t ] [
+    "fold-test" "compiler.tests.folding" lookup execute
+    "fold-test" "compiler.tests.folding" lookup execute
+    eq?
+] unit-test
diff --git a/basis/compiler/tests/insane.factor b/basis/compiler/tests/insane.factor
new file mode 100644
index 0000000000..aa79067252
--- /dev/null
+++ b/basis/compiler/tests/insane.factor
@@ -0,0 +1,5 @@
+IN: compiler.tests
+USING: words kernel stack-checker alien.strings tools.test
+compiler.units ;
+
+[ ] [ [ \ if redefined ] with-compilation-unit [ string>alien ] infer. ] unit-test
diff --git a/core/compiler/tests/intrinsics.factor b/basis/compiler/tests/intrinsics.factor
similarity index 96%
rename from core/compiler/tests/intrinsics.factor
rename to basis/compiler/tests/intrinsics.factor
index 6fb6afe0c6..f5a1a86ae3 100755
--- a/core/compiler/tests/intrinsics.factor
+++ b/basis/compiler/tests/intrinsics.factor
@@ -1,8 +1,8 @@
-USING: arrays compiler.units kernel kernel.private math
+USING: accessors arrays compiler.units kernel kernel.private math
 math.constants math.private sequences strings tools.test words
 continuations sequences.private hashtables.private byte-arrays
-strings.private system random layouts vectors.private
-sbufs.private strings.private slots.private alien math.order
+strings.private system random layouts vectors
+sbufs strings.private slots.private alien math.order
 alien.accessors alien.c-types alien.syntax alien.strings
 namespaces libc sequences.private io.encodings.ascii ;
 IN: compiler.tests
@@ -252,7 +252,7 @@ cell 8 = [
 ! Some randomized tests
 : compiled-fixnum* fixnum* ;
 
-: test-fixnum*
+: test-fixnum* ( -- )
     32 random-bits >fixnum 32 random-bits >fixnum
     2dup
     [ fixnum* ] 2keep compiled-fixnum* =
@@ -262,7 +262,7 @@ cell 8 = [
 
 : compiled-fixnum>bignum fixnum>bignum ;
 
-: test-fixnum>bignum
+: test-fixnum>bignum ( -- )
     32 random-bits >fixnum
     dup [ fixnum>bignum ] keep compiled-fixnum>bignum =
     [ drop ] [ "Oops" throw ] if ;
@@ -271,7 +271,7 @@ cell 8 = [
 
 : compiled-bignum>fixnum bignum>fixnum ;
 
-: test-bignum>fixnum
+: test-bignum>fixnum ( -- )
     5 random [ drop 32 random-bits ] map product >bignum
     dup [ bignum>fixnum ] keep compiled-bignum>fixnum =
     [ drop ] [ "Oops" throw ] if ;
@@ -332,11 +332,11 @@ cell 8 = [
 ] unit-test
 
 [ V{ 1 2 } ] [
-    { 1 2 3 } 2 [ array>vector ] compile-call
+    { 1 2 3 } 2 [ vector boa ] compile-call
 ] unit-test
 
 [ SBUF" hello" ] [
-    "hello world" 5 [ string>sbuf ] compile-call
+    "hello world" 5 [ sbuf boa ] compile-call
 ] unit-test
 
 [ [ 3 + ] ] [
@@ -377,7 +377,7 @@ cell 8 = [
 [ 252 ] [ B{ 1 2 3 -4 5 } 3 [ { byte-array fixnum } declare alien-unsigned-1 ] compile-call ] unit-test
 [ -4 ] [ B{ 1 2 3 -4 5 } 3 [ { byte-array fixnum } declare alien-signed-1 ] compile-call ] unit-test
 
-: xword-def word-def [ { fixnum } declare ] prepend ;
+: xword-def ( word -- def ) def>> [ { fixnum } declare ] prepend ;
 
 [ -100 ] [ -100 <char> [ { byte-array } declare *char ] compile-call ] unit-test
 [ 156 ] [ -100 <uchar> [ { byte-array } declare *uchar ] compile-call ] unit-test
@@ -450,3 +450,14 @@ cell 8 = [
 [ 8 ] [
     1 [ 3 fixnum-shift-fast ] compile-call
 ] unit-test
+
+TUPLE: alien-accessor-regression { b byte-array } { i fixnum } ;
+
+[ B{ 0 1 } ] [
+    B{ 0 0 } 1 alien-accessor-regression boa
+    dup [
+        { alien-accessor-regression } declare
+        [ i>> ] [ b>> ] bi over set-alien-unsigned-1
+    ] compile-call
+    b>>
+] unit-test
diff --git a/core/optimizer/optimizer-tests.factor b/basis/compiler/tests/optimizer.factor
similarity index 68%
rename from core/optimizer/optimizer-tests.factor
rename to basis/compiler/tests/optimizer.factor
index 6f4ae2c1d5..4c39da0479 100755
--- a/core/optimizer/optimizer-tests.factor
+++ b/basis/compiler/tests/optimizer.factor
@@ -1,23 +1,15 @@
-USING: arrays compiler.units generic hashtables inference kernel
-kernel.private math optimizer generator prettyprint sequences
+USING: accessors arrays compiler.units generic hashtables
+stack-checker kernel kernel.private math prettyprint sequences
 sbufs strings tools.test vectors words sequences.private
-quotations optimizer.backend classes classes.algebra
-inference.dataflow classes.tuple.private continuations growable
-optimizer.inlining namespaces hints ;
+quotations classes classes.algebra classes.tuple.private
+continuations growable namespaces hints alien.accessors
+compiler.tree.builder compiler.tree.optimizer sequences.deep ;
 IN: optimizer.tests
 
-[ H{ { 1 5 } { 3 4 } { 2 5 } } ] [
-    H{ { 1 2 } { 3 4 } } H{ { 2 5 } } union*
-] unit-test
-
-[ H{ { 1 4 } { 2 4 } { 3 4 } } ] [
-    H{ { 1 2 } { 3 4 } } H{ { 2 3 } } union*
-] unit-test
-
 GENERIC: xyz ( obj -- obj )
 M: array xyz xyz ;
 
-[ t ] [ \ xyz compiled? ] unit-test
+[ t ] [ \ xyz compiled>> ] unit-test
 
 ! Test predicate inlining
 : pred-test-1
@@ -86,7 +78,7 @@ TUPLE: pred-test ;
         3 2 (double-recursion)
     ] when ; inline
 
-: double-recursion 0 2 (double-recursion) ;
+: double-recursion ( -- ) 0 2 (double-recursion) ;
 
 [ ] [ double-recursion ] unit-test
 
@@ -101,8 +93,8 @@ TUPLE: pred-test ;
 
 ! regression
 GENERIC: void-generic ( obj -- * )
-: breakage "hi" void-generic ;
-[ t ] [ \ breakage compiled? ] unit-test
+: breakage ( -- * ) "hi" void-generic ;
+[ t ] [ \ breakage compiled>> ] unit-test
 [ breakage ] must-fail
 
 ! regression
@@ -116,31 +108,29 @@ GENERIC: void-generic ( obj -- * )
 
 ! another regression
 : constant-branch-fold-0 "hey" ; foldable
-: constant-branch-fold-1 constant-branch-fold-0 "hey" = ; inline
+: constant-branch-fold-1 ( -- ? ) constant-branch-fold-0 "hey" = ; inline
 [ 1 ] [ [ constant-branch-fold-1 [ 1 ] [ 2 ] if ] compile-call ] unit-test
 
 ! another regression
 : foo f ;
-: bar foo 4 4 = and ;
+: bar ( -- ? ) foo 4 4 = and ;
 [ f ] [ bar ] unit-test
 
-! ensure identities are working in some form
-[ t ] [
-    [ { number } declare 0 + ] dataflow optimize
-    [ #push? ] node-exists? not
-] unit-test
-
 ! compiling <tuple> with a non-literal class failed
-: <tuple>-regression <tuple> ;
+: <tuple>-regression ( class -- tuple ) <tuple> ;
 
-[ t ] [ \ <tuple>-regression compiled? ] unit-test
+[ t ] [ \ <tuple>-regression compiled>> ] unit-test
 
 GENERIC: foozul ( a -- b )
 M: reversed foozul ;
 M: integer foozul ;
 M: slice foozul ;
 
-[ reversed ] [ reversed \ foozul specific-method ] unit-test
+[ t ] [
+    reversed \ foozul specific-method
+    reversed \ foozul method
+    eq?
+] unit-test
 
 ! regression
 : constant-fold-2 f ; foldable
@@ -215,15 +205,16 @@ M: number detect-number ;
 
 ! Regression
 USE: sorting
-USE: sorting.private
+USE: binary-search
+USE: binary-search.private
 
 : old-binsearch ( elt quot seq -- elt quot i )
     dup length 1 <= [
-        slice-from
+        from>>
     ] [
         [ midpoint swap call ] 3keep roll dup zero?
-        [ drop dup slice-from swap midpoint@ + ]
-        [ partition old-binsearch ] if
+        [ drop dup from>> swap midpoint@ + ]
+        [ dup midpoint@ cut-slice old-binsearch ] if
     ] if ; inline
 
 [ 10 ] [
@@ -231,47 +222,27 @@ USE: sorting.private
     [ [ - ] swap old-binsearch ] compile-call 2nip
 ] unit-test
 
-! Regression
-TUPLE: silly-tuple a b ;
-
-[ 1 2 { silly-tuple-a silly-tuple-b } ] [
-    T{ silly-tuple f 1 2 }
-    [
-        { silly-tuple-a silly-tuple-b } [ get-slots ] keep
-    ] compile-call
-] unit-test
-
 ! Regression
 : empty-compound ;
 
 : node-successor-f-bug ( x -- * )
     [ 3 throw ] [ empty-compound ] compose [ 3 throw ] if ;
 
-[ t ] [ \ node-successor-f-bug compiled? ] unit-test
+[ t ] [ \ node-successor-f-bug compiled>> ] unit-test
 
-[ ] [ [ new ] dataflow optimize drop ] unit-test
+[ ] [ [ new ] build-tree optimize-tree drop ] unit-test
 
-[ ] [ [ <tuple> ] dataflow optimize drop ] unit-test
-
-! Make sure we have sane heuristics
-: should-inline? method flat-length 10 <= ;
-
-[ t ] [ \ fixnum \ shift should-inline? ] unit-test
-[ f ] [ \ array \ equal? should-inline? ] unit-test
-[ f ] [ \ sequence \ hashcode* should-inline? ] unit-test
-[ t ] [ \ array \ nth-unsafe should-inline? ] unit-test
-[ t ] [ \ growable \ nth-unsafe should-inline? ] unit-test
-[ t ] [ \ sbuf \ set-nth-unsafe should-inline? ] unit-test
+[ ] [ [ <tuple> ] build-tree optimize-tree drop ] unit-test
 
 ! Regression
-: lift-throw-tail-regression
+: lift-throw-tail-regression ( obj -- obj str )
     dup integer? [ "an integer" ] [
         dup string? [ "a string" ] [
             "error" throw
         ] if
     ] if ;
 
-[ t ] [ \ lift-throw-tail-regression compiled? ] unit-test
+[ t ] [ \ lift-throw-tail-regression compiled>> ] unit-test
 [ 3 "an integer" ] [ 3 lift-throw-tail-regression ] unit-test
 [ "hi" "a string" ] [ "hi" lift-throw-tail-regression ] unit-test
 
@@ -291,38 +262,16 @@ TUPLE: silly-tuple a b ;
 
 [ 1 2 3 ] [ lift-loop-tail-test-2 ] unit-test
 
-GENERIC: generic-inline-test ( x -- y )
-M: integer generic-inline-test ;
-
-: generic-inline-test-1
-    1
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test
-    generic-inline-test ;
-
-! Inlining all of the above should only take two passes
-[ { t f } ] [
-    \ generic-inline-test-1 word-def dataflow
-    [ optimize-1 , optimize-1 , drop ] { } make
-] unit-test
-
 ! Forgot a recursive inline check
 : recursive-inline-hang ( a -- a )
     dup array? [ recursive-inline-hang ] when ;
 
 HINTS: recursive-inline-hang array ;
 
-: recursive-inline-hang-1
+: recursive-inline-hang-1 ( -- a )
     { } recursive-inline-hang ;
 
-[ t ] [ \ recursive-inline-hang-1 compiled? ] unit-test
+[ t ] [ \ recursive-inline-hang-1 compiled>> ] unit-test
 
 DEFER: recursive-inline-hang-3
 
@@ -350,9 +299,66 @@ USE: sequences.private
 
 [ 2 4 6.0 0 ] [ counter-example' ] unit-test
 
-: member-test { + - * / /i } member? ;
+: member-test ( obj -- ? ) { + - * / /i } member? ;
 
 \ member-test must-infer
-[ ] [ \ member-test word-dataflow optimize 2drop ] unit-test
+[ ] [ \ member-test build-tree-from-word optimize-tree 2drop ] unit-test
 [ t ] [ \ + member-test ] unit-test
 [ f ] [ \ append member-test ] unit-test
+
+! Infinite expansion
+TUPLE: cons car cdr ;
+
+UNION: improper-list cons POSTPONE: f ;
+
+PREDICATE: list < improper-list
+    [ cdr>> list instance? ] [ t ] if* ;
+
+[ t ] [
+    T{ cons f 1 T{ cons f 2 T{ cons f 3 f } } }
+    [ list instance? ] compile-call
+] unit-test
+
+! Regression
+: interval-inference-bug ( obj -- obj x )
+    dup "a" get { array-capacity } declare >=
+    [ dup "b" get { array-capacity } declare >= [ 3 ] [ 4 ] if ] [ 5 ] if ;
+
+\ interval-inference-bug must-infer
+
+[ ] [ 1 "a" set 2 "b" set ] unit-test
+[ 2 3 ] [ 2 interval-inference-bug ] unit-test
+[ 1 4 ] [ 1 interval-inference-bug ] unit-test
+[ 0 5 ] [ 0 interval-inference-bug ] unit-test
+
+: aggressive-flush-regression ( a -- b )
+    f over >r <array> drop r> 1 + ;
+
+[ 1.0 aggressive-flush-regression drop ] must-fail
+
+[ 1 [ "hi" + drop ] compile-call ] must-fail
+
+[ "hi" f [ <array> drop ] compile-call ] must-fail
+
+TUPLE: some-tuple x ;
+
+: allot-regression ( a -- b )
+    [ ] curry some-tuple boa ;
+
+[ T{ some-tuple f [ 3 ] } ] [ 3 allot-regression ] unit-test
+
+[ 1 ] [ B{ 0 0 0 0 } [ 0 alien-signed-4 1+ ] compile-call ] unit-test
+[ 1 ] [ B{ 0 0 0 0 } [ 0 alien-unsigned-4 1+ ] compile-call ] unit-test
+[ 1 ] [ B{ 0 0 0 0 0 0 0 0 } [ 0 alien-signed-8 1+ ] compile-call ] unit-test
+[ 1 ] [ B{ 0 0 0 0 0 0 0 0 } [ 0 alien-unsigned-8 1+ ] compile-call ] unit-test
+[ 1 ] [ B{ 0 0 0 0 0 0 0 0 } [ 0 alien-signed-cell 1+ ] compile-call ] unit-test
+[ 1 ] [ B{ 0 0 0 0 0 0 0 0 } [ 0 alien-unsigned-cell 1+ ] compile-call ] unit-test
+
+: deep-find-test ( seq -- ? ) [ 5 = ] deep-find ;
+
+[ 5 ] [ { 1 2 { 3 { 4 5 } } } deep-find-test ] unit-test
+[ f ] [ { 1 2 { 3 { 4 } } } deep-find-test ] unit-test
+
+[ B{ 0 1 2 3 4 5 6 7 } ] [ [ 8 [ ] B{ } map-as ] compile-call ] unit-test
+
+[ 0 ] [ 1234 [ { fixnum } declare -64 shift ] compile-call ] unit-test
diff --git a/basis/compiler/tests/redefine1.factor b/basis/compiler/tests/redefine1.factor
new file mode 100644
index 0000000000..1b349d2296
--- /dev/null
+++ b/basis/compiler/tests/redefine1.factor
@@ -0,0 +1,58 @@
+USING: accessors compiler compiler.units tools.test math parser
+kernel sequences sequences.private classes.mixin generic
+definitions arrays words assocs eval ;
+IN: compiler.tests
+
+GENERIC: method-redefine-test ( a -- b )
+
+M: integer method-redefine-test 3 + ;
+
+: method-redefine-test-1 ( -- b ) 3 method-redefine-test ;
+
+[ 6 ] [ method-redefine-test-1 ] unit-test
+
+[ ] [ "IN: compiler.tests USE: math M: fixnum method-redefine-test 4 + ;" eval ] unit-test
+
+[ 7 ] [ method-redefine-test-1 ] unit-test
+
+[ ] [ [ fixnum \ method-redefine-test method forget ] with-compilation-unit ] unit-test
+
+[ 6 ] [ method-redefine-test-1 ] unit-test
+
+! Test ripple-up behavior
+: hey ( -- ) ;
+: there ( -- ) hey ;
+
+[ t ] [ \ hey compiled>> ] unit-test
+[ t ] [ \ there compiled>> ] unit-test
+[ ] [ "IN: compiler.tests : hey ( -- ) 3 ;" eval ] unit-test
+[ f ] [ \ hey compiled>> ] unit-test
+[ f ] [ \ there compiled>> ] unit-test
+[ ] [ "IN: compiler.tests : hey ( -- ) ;" eval ] unit-test
+[ t ] [ \ there compiled>> ] unit-test
+
+: good ( -- ) ;
+: bad ( -- ) good ;
+: ugly ( -- ) bad ;
+
+[ t ] [ \ good compiled>> ] unit-test
+[ t ] [ \ bad compiled>> ] unit-test
+[ t ] [ \ ugly compiled>> ] unit-test
+
+[ f ] [ \ good compiled-usage assoc-empty? ] unit-test
+
+[ ] [ "IN: compiler.tests : good ( -- ) 3 ;" eval ] unit-test
+
+[ f ] [ \ good compiled>> ] unit-test
+[ f ] [ \ bad compiled>> ] unit-test
+[ f ] [ \ ugly compiled>> ] unit-test
+
+[ t ] [ \ good compiled-usage assoc-empty? ] unit-test
+
+[ ] [ "IN: compiler.tests : good ( -- ) ;" eval ] unit-test
+
+[ t ] [ \ good compiled>> ] unit-test
+[ t ] [ \ bad compiled>> ] unit-test
+[ t ] [ \ ugly compiled>> ] unit-test
+
+[ f ] [ \ good compiled-usage assoc-empty? ] unit-test
diff --git a/basis/compiler/tests/redefine10.factor b/basis/compiler/tests/redefine10.factor
new file mode 100644
index 0000000000..8a6fb8a313
--- /dev/null
+++ b/basis/compiler/tests/redefine10.factor
@@ -0,0 +1,29 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel ;
+IN: compiler.tests
+
+! Mixin redefinition did not recompile all necessary words.
+
+[ ] [ [ "compiler.tests.redefine10" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: kernel math classes ;
+    IN: compiler.tests.redefine10
+    MIXIN: my-mixin
+    INSTANCE: fixnum my-mixin
+    : my-inline ( a -- b ) dup my-mixin instance? [ 1 + ] when ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USE: math
+    IN: compiler.tests.redefine10
+    INSTANCE: float my-mixin
+    "> eval
+] unit-test
+
+[ 2.0 ] [
+    1.0 "my-inline" "compiler.tests.redefine10" lookup execute
+] unit-test
diff --git a/basis/compiler/tests/redefine11.factor b/basis/compiler/tests/redefine11.factor
new file mode 100644
index 0000000000..18b1a3a430
--- /dev/null
+++ b/basis/compiler/tests/redefine11.factor
@@ -0,0 +1,32 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel classes.mixin arrays ;
+IN: compiler.tests
+
+! Mixin redefinition did not recompile all necessary words.
+
+[ ] [ [ "compiler.tests.redefine11" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: kernel math classes arrays ;
+    IN: compiler.tests.redefine11
+    MIXIN: my-mixin
+    INSTANCE: array my-mixin
+    INSTANCE: fixnum my-mixin
+    GENERIC: my-generic ( a -- b )
+    M: my-mixin my-generic drop 0 ;
+    M: object my-generic drop 1 ;
+    : my-inline ( -- b ) { } my-generic ;
+    "> eval
+] unit-test
+
+[ ] [
+    [
+        array "my-mixin" "compiler.tests.redefine11" lookup
+        remove-mixin-instance
+    ] with-compilation-unit
+] unit-test
+
+[ 1 ] [
+    "my-inline" "compiler.tests.redefine11" lookup execute
+] unit-test
diff --git a/basis/compiler/tests/redefine2.factor b/basis/compiler/tests/redefine2.factor
new file mode 100644
index 0000000000..c20a6d6233
--- /dev/null
+++ b/basis/compiler/tests/redefine2.factor
@@ -0,0 +1,18 @@
+IN: compiler.tests
+USING: compiler compiler.units tools.test math parser kernel
+sequences sequences.private classes.mixin generic definitions
+arrays words assocs eval ;
+
+DEFER: blah
+
+[ ] [ "USE: sequences USE: kernel IN: compiler.tests TUPLE: blah ; M: blah nth 2drop 3 ; INSTANCE: blah sequence" eval ] unit-test
+
+[ t ] [ blah new sequence? ] unit-test
+
+[ 3 ] [ 0 blah new nth-unsafe ] unit-test
+
+[ ] [ [ blah sequence remove-mixin-instance ] with-compilation-unit ] unit-test
+
+[ f ] [ blah new sequence? ] unit-test
+
+[ 0 blah new nth-unsafe ] must-fail
diff --git a/basis/compiler/tests/redefine3.factor b/basis/compiler/tests/redefine3.factor
new file mode 100644
index 0000000000..941d086312
--- /dev/null
+++ b/basis/compiler/tests/redefine3.factor
@@ -0,0 +1,32 @@
+IN: compiler.tests
+USING: accessors compiler compiler.units tools.test math parser
+kernel sequences sequences.private classes.mixin generic
+definitions arrays words assocs eval ;
+
+GENERIC: sheeple ( obj -- x )
+
+M: object sheeple drop "sheeple" ;
+
+MIXIN: empty-mixin
+
+M: empty-mixin sheeple drop "wake up" ;
+
+: sheeple-test ( -- string ) { } sheeple ;
+
+[ "sheeple" ] [ sheeple-test ] unit-test
+[ t ] [ \ sheeple-test compiled>> ] unit-test
+[ t ] [ object \ sheeple method \ sheeple-test "compiled-uses" word-prop key? ] unit-test
+[ f ] [ empty-mixin \ sheeple method \ sheeple-test "compiled-uses" word-prop key? ] unit-test
+
+[ ] [ "IN: compiler.tests USE: arrays INSTANCE: array empty-mixin" eval ] unit-test
+
+[ "wake up" ] [ sheeple-test ] unit-test
+[ f ] [ object \ sheeple method \ sheeple-test "compiled-uses" word-prop key? ] unit-test
+[ t ] [ empty-mixin \ sheeple method \ sheeple-test "compiled-uses" word-prop key? ] unit-test
+
+[ ] [ [ array empty-mixin remove-mixin-instance ] with-compilation-unit ] unit-test
+
+[ "sheeple" ] [ sheeple-test ] unit-test
+[ t ] [ \ sheeple-test compiled>> ] unit-test
+[ t ] [ object \ sheeple method \ sheeple-test "compiled-uses" word-prop key? ] unit-test
+[ f ] [ empty-mixin \ sheeple method \ sheeple-test "compiled-uses" word-prop key? ] unit-test
diff --git a/basis/compiler/tests/redefine4.factor b/basis/compiler/tests/redefine4.factor
new file mode 100644
index 0000000000..2f21777801
--- /dev/null
+++ b/basis/compiler/tests/redefine4.factor
@@ -0,0 +1,12 @@
+IN: compiler.tests
+USING: io.streams.string kernel tools.test eval ;
+
+: declaration-test-1 ( -- a ) 3 ; flushable
+
+: declaration-test ( -- ) declaration-test-1 drop ;
+
+[ "" ] [ [ declaration-test ] with-string-writer ] unit-test
+
+[ ] [ "IN: compiler.tests USE: io : declaration-test-1 ( -- a ) \"X\" write f ;" eval ] unit-test
+
+[ "X" ] [ [ declaration-test ] with-string-writer ] unit-test
diff --git a/basis/compiler/tests/redefine5.factor b/basis/compiler/tests/redefine5.factor
new file mode 100644
index 0000000000..ac1619b857
--- /dev/null
+++ b/basis/compiler/tests/redefine5.factor
@@ -0,0 +1,32 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel ;
+IN: compiler.tests
+
+! Regression: if dispatch was eliminated but method was not inlined,
+! compiled usage information was not recorded.
+
+[ "compiler.tests.redefine5" forget-vocab ] with-compilation-unit
+
+[ ] [
+    <"
+    USING: sorting kernel math.order ;
+    IN: compiler.tests.redefine5
+    GENERIC: my-generic ( a -- b )
+    M: object my-generic [ <=> ] sort ;
+    : my-inline ( a -- b ) my-generic ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USE: kernel
+    IN: compiler.tests.redefine5
+    TUPLE: my-tuple ;
+    M: my-tuple my-generic drop 0 ;
+    "> eval
+] unit-test
+
+[ 0 ] [
+    "my-tuple" "compiler.tests.redefine5" lookup boa
+    "my-inline" "compiler.tests.redefine5" lookup execute
+] unit-test
diff --git a/basis/compiler/tests/redefine6.factor b/basis/compiler/tests/redefine6.factor
new file mode 100644
index 0000000000..73225c55b8
--- /dev/null
+++ b/basis/compiler/tests/redefine6.factor
@@ -0,0 +1,33 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel ;
+IN: compiler.tests
+
+! Mixin redefinition did not recompile all necessary words.
+
+[ ] [ [ "compiler.tests.redefine6" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: kernel kernel.private ;
+    IN: compiler.tests.redefine6
+    GENERIC: my-generic ( a -- b )
+    MIXIN: my-mixin
+    M: my-mixin my-generic drop 0 ;
+    : my-inline ( a -- b ) { my-mixin } declare my-generic ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USING: kernel ;
+    IN: compiler.tests.redefine6
+    TUPLE: my-tuple ;
+    M: my-tuple my-generic drop 1 ;
+    INSTANCE: my-tuple my-mixin
+    "> eval
+] unit-test
+
+[ 1 ] [
+    "my-tuple" "compiler.tests.redefine6" lookup boa
+    "my-inline" "compiler.tests.redefine6" lookup execute
+] unit-test
diff --git a/basis/compiler/tests/redefine7.factor b/basis/compiler/tests/redefine7.factor
new file mode 100644
index 0000000000..164a2e3831
--- /dev/null
+++ b/basis/compiler/tests/redefine7.factor
@@ -0,0 +1,29 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel ;
+IN: compiler.tests
+
+! Mixin redefinition did not recompile all necessary words.
+
+[ ] [ [ "compiler.tests.redefine7" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: kernel math ;
+    IN: compiler.tests.redefine7
+    MIXIN: my-mixin
+    INSTANCE: fixnum my-mixin
+    : my-inline ( a -- b ) dup my-mixin? [ 1 + ] when ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USE: math
+    IN: compiler.tests.redefine7
+    INSTANCE: float my-mixin
+    "> eval
+] unit-test
+
+[ 2.0 ] [
+    1.0 "my-inline" "compiler.tests.redefine7" lookup execute
+] unit-test
diff --git a/basis/compiler/tests/redefine8.factor b/basis/compiler/tests/redefine8.factor
new file mode 100644
index 0000000000..c8b3377632
--- /dev/null
+++ b/basis/compiler/tests/redefine8.factor
@@ -0,0 +1,32 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel ;
+IN: compiler.tests
+
+! Mixin redefinition did not recompile all necessary words.
+
+[ ] [ [ "compiler.tests.redefine8" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: kernel math math.order sorting ;
+    IN: compiler.tests.redefine8
+    MIXIN: my-mixin
+    INSTANCE: fixnum my-mixin
+    GENERIC: my-generic ( a -- b )
+    ! We add the bogus quotation here to hinder inlining
+    ! since otherwise we cannot trigger this bug.
+    M: my-mixin my-generic 1 + [ [ <=> ] sort ] drop ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USE: math
+    IN: compiler.tests.redefine8
+    INSTANCE: float my-mixin
+    "> eval
+] unit-test
+
+[ 2.0 ] [
+    1.0 "my-generic" "compiler.tests.redefine8" lookup execute
+] unit-test
diff --git a/basis/compiler/tests/redefine9.factor b/basis/compiler/tests/redefine9.factor
new file mode 100644
index 0000000000..7b0f8a2e9c
--- /dev/null
+++ b/basis/compiler/tests/redefine9.factor
@@ -0,0 +1,35 @@
+USING: eval tools.test compiler.units vocabs multiline words
+kernel generic.math ;
+IN: compiler.tests
+
+! Mixin redefinition did not recompile all necessary words.
+
+[ ] [ [ "compiler.tests.redefine9" forget-vocab ] with-compilation-unit ] unit-test
+
+[ ] [
+    <"
+    USING: kernel math math.order sorting ;
+    IN: compiler.tests.redefine9
+    MIXIN: my-mixin
+    INSTANCE: fixnum my-mixin
+    GENERIC: my-generic ( a -- b )
+    ! We add the bogus quotation here to hinder inlining
+    ! since otherwise we cannot trigger this bug.
+    M: my-mixin my-generic 1 + [ [ <=> ] sort ] drop ;
+    "> eval
+] unit-test
+
+[ ] [
+    <"
+    USE: math
+    IN: compiler.tests.redefine9
+    TUPLE: my-tuple ;
+    INSTANCE: my-tuple my-mixin
+    "> eval
+] unit-test
+
+[
+    "my-tuple" "compiler.tests.redefine9" lookup boa
+    "my-generic" "compiler.tests.redefine9" lookup
+    execute
+] [ no-math-method? ] must-fail-with
diff --git a/basis/compiler/tests/reload.factor b/basis/compiler/tests/reload.factor
new file mode 100644
index 0000000000..b2b65b5868
--- /dev/null
+++ b/basis/compiler/tests/reload.factor
@@ -0,0 +1,6 @@
+IN: compiler.tests
+USE: vocabs.loader
+
+! "parser" reload
+! "sequences" reload
+! "kernel" reload
diff --git a/core/compiler/tests/simple.factor b/basis/compiler/tests/simple.factor
similarity index 80%
rename from core/compiler/tests/simple.factor
rename to basis/compiler/tests/simple.factor
index bc9c56864c..671171a959 100755
--- a/core/compiler/tests/simple.factor
+++ b/basis/compiler/tests/simple.factor
@@ -1,6 +1,6 @@
 USING: compiler.units tools.test kernel kernel.private
 sequences.private math.private math combinators strings
-alien arrays memory vocabs parser ;
+alien arrays memory vocabs parser eval ;
 IN: compiler.tests
 
 ! Test empty word
@@ -69,31 +69,31 @@ IN: compiler.tests
 
 ! Regression
 
-: empty ;
+: empty ( -- ) ;
 
 [ "b" ] [ 1 [ empty { [ "a" ] [ "b" ] } dispatch ] compile-call ] unit-test
 
-: dummy-if-1 t [ ] [ ] if ;
+: dummy-if-1 ( -- ) t [ ] [ ] if ;
 
 [ ] [ dummy-if-1 ] unit-test
 
-: dummy-if-2 f [ ] [ ] if ;
+: dummy-if-2 ( -- ) f [ ] [ ] if ;
 
 [ ] [ dummy-if-2 ] unit-test
 
-: dummy-if-3 t [ 1 ] [ 2 ] if ;
+: dummy-if-3 ( -- n ) t [ 1 ] [ 2 ] if ;
 
 [ 1 ] [ dummy-if-3 ] unit-test
 
-: dummy-if-4 f [ 1 ] [ 2 ] if ;
+: dummy-if-4 ( -- n ) f [ 1 ] [ 2 ] if ;
 
 [ 2 ] [ dummy-if-4 ] unit-test
 
-: dummy-if-5 0 dup 1 fixnum<= [ drop 1 ] [ ] if ;
+: dummy-if-5 ( -- n ) 0 dup 1 fixnum<= [ drop 1 ] [ ] if ;
 
 [ 1 ] [ dummy-if-5 ] unit-test
 
-: dummy-if-6
+: dummy-if-6 ( n -- n )
     dup 1 fixnum<= [
         drop 1
     ] [
@@ -102,7 +102,7 @@ IN: compiler.tests
 
 [ 17 ] [ 10 dummy-if-6 ] unit-test
 
-: dead-code-rec
+: dead-code-rec ( -- obj )
     t [
         3.2
     ] [
@@ -111,11 +111,11 @@ IN: compiler.tests
 
 [ 3.2 ] [ dead-code-rec ] unit-test
 
-: one-rec [ f one-rec ] [ "hi" ] if ;
+: one-rec ( ? -- obj ) [ f one-rec ] [ "hi" ] if ;
 
 [ "hi" ] [ t one-rec ] unit-test
 
-: after-if-test
+: after-if-test ( -- n )
     t [ ] [ ] if 5 ;
 
 [ 5 ] [ after-if-test ] unit-test
@@ -127,37 +127,37 @@ DEFER: countdown-b
 
 [ ] [ 10 countdown-b ] unit-test
 
-: dummy-when-1 t [ ] when ;
+: dummy-when-1 ( -- ) t [ ] when ;
 
 [ ] [ dummy-when-1 ] unit-test
 
-: dummy-when-2 f [ ] when ;
+: dummy-when-2 ( -- ) f [ ] when ;
 
 [ ] [ dummy-when-2 ] unit-test
 
-: dummy-when-3 dup [ dup fixnum* ] when ;
+: dummy-when-3 ( a -- b ) dup [ dup fixnum* ] when ;
 
 [ 16 ] [ 4 dummy-when-3 ] unit-test
 [ f ] [ f dummy-when-3 ] unit-test
 
-: dummy-when-4 dup [ dup dup fixnum* fixnum* ] when swap ;
+: dummy-when-4 ( a b -- a b ) dup [ dup dup fixnum* fixnum* ] when swap ;
 
 [ 64 f ] [ f 4 dummy-when-4 ] unit-test
 [ f t ] [ t f dummy-when-4 ] unit-test
 
-: dummy-when-5 f [ dup fixnum* ] when ;
+: dummy-when-5 ( a -- b ) f [ dup fixnum* ] when ;
 
 [ f ] [ f dummy-when-5 ] unit-test
 
-: dummy-unless-1 t [ ] unless ;
+: dummy-unless-1 ( -- ) t [ ] unless ;
 
 [ ] [ dummy-unless-1 ] unit-test
 
-: dummy-unless-2 f [ ] unless ;
+: dummy-unless-2 ( -- ) f [ ] unless ;
 
 [ ] [ dummy-unless-2 ] unit-test
 
-: dummy-unless-3 dup [ drop 3 ] unless ;
+: dummy-unless-3 ( a -- b ) dup [ drop 3 ] unless ;
 
 [ 3 ] [ f dummy-unless-3 ] unit-test
 [ 4 ] [ 4 dummy-unless-3 ] unit-test
@@ -201,7 +201,7 @@ DEFER: countdown-b
     ] compile-call
 ] unit-test
 
-GENERIC: single-combination-test
+GENERIC: single-combination-test ( obj1 obj2 -- obj )
 
 M: object single-combination-test drop ;
 M: f single-combination-test nip ;
@@ -214,13 +214,13 @@ M: integer single-combination-test drop ;
 
 DEFER: single-combination-test-2
 
-: single-combination-test-4
+: single-combination-test-4 ( obj -- obj )
     dup [ single-combination-test-2 ] when ;
 
-: single-combination-test-3
+: single-combination-test-3 ( obj -- obj )
     drop 3 ;
 
-GENERIC: single-combination-test-2
+GENERIC: single-combination-test-2 ( obj -- obj )
 M: object single-combination-test-2 single-combination-test-3 ;
 M: f single-combination-test-2 single-combination-test-4 ;
 
@@ -235,6 +235,6 @@ M: f single-combination-test-2 single-combination-test-4 ;
 10 [
     [ "compiler.tests.foo" forget-vocab ] with-compilation-unit
     [ t ] [
-        "USING: prettyprint words ; IN: compiler.tests.foo : (recursive) (  -- ) (recursive) (recursive) ; inline : recursive ( -- ) (recursive) ; \\ (recursive) compiled?" eval
+        "USING: prettyprint words accessors ; IN: compiler.tests.foo : (recursive) ( -- ) (recursive) (recursive) ; inline recursive : recursive ( -- ) (recursive) ; \\ (recursive) compiled>>" eval
     ] unit-test
 ] times
diff --git a/core/compiler/tests/stack-trace.factor b/basis/compiler/tests/stack-trace.factor
similarity index 60%
rename from core/compiler/tests/stack-trace.factor
rename to basis/compiler/tests/stack-trace.factor
index 9ee774d81d..c6cbb79ce5 100755
--- a/core/compiler/tests/stack-trace.factor
+++ b/basis/compiler/tests/stack-trace.factor
@@ -1,15 +1,15 @@
 IN: compiler.tests
 USING: compiler tools.test namespaces sequences
 kernel.private kernel math continuations continuations.private
-words splitting sorting ;
+words splitting grouping sorting accessors ;
 
 : symbolic-stack-trace ( -- newseq )
-    error-continuation get continuation-call callstack>array
+    error-continuation get call>> callstack>array
     2 group flip first ;
 
-: foo 3 throw 7 ;
-: bar foo 4 ;
-: baz bar 5 ;
+: foo ( -- * ) 3 throw 7 ;
+: bar ( -- * ) foo 4 ;
+: baz ( -- * ) bar 5 ;
 [ baz ] [ 3 = ] must-fail-with
 [ t ] [
     symbolic-stack-trace
@@ -17,9 +17,9 @@ words splitting sorting ;
     { baz bar foo throw } tail?
 ] unit-test
 
-: bleh [ 3 + ] map [ 0 > ] filter ;
+: bleh ( seq -- seq' ) [ 3 + ] map [ 0 > ] filter ;
 
-: stack-trace-contains? symbolic-stack-trace memq? ;
+: stack-trace-contains? ( word -- ? ) symbolic-stack-trace memq? ;
 
 [ t ] [
     [ { 1 "hi" } bleh ] ignore-errors \ + stack-trace-contains?
@@ -30,10 +30,3 @@ words splitting sorting ;
     \ + stack-trace-contains?
     \ > stack-trace-contains?
 ] unit-test
-
-: quux { 1 2 3 } [ "hi" throw ] sort ;
-
-[ t ] [
-    [ 10 quux ] ignore-errors
-    \ sort stack-trace-contains?
-] unit-test
diff --git a/core/compiler/tests/templates-early.factor b/basis/compiler/tests/templates-early.factor
similarity index 95%
rename from core/compiler/tests/templates-early.factor
rename to basis/compiler/tests/templates-early.factor
index 5a08ed0b5b..6b2eed0789 100755
--- a/core/compiler/tests/templates-early.factor
+++ b/basis/compiler/tests/templates-early.factor
@@ -1,9 +1,9 @@
 ! Testing templates machinery without compiling anything
 IN: compiler.tests
-USING: compiler generator generator.registers
-generator.registers.private tools.test namespaces sequences
-words kernel math effects definitions compiler.units accessors
-cpu.architecture ;
+USING: compiler compiler.generator compiler.generator.registers
+compiler.generator.registers.private tools.test namespaces
+sequences words kernel math effects definitions compiler.units
+accessors cpu.architecture ;
 
 : <int-vreg> ( n -- vreg ) int-regs <vreg> ;
 
diff --git a/core/compiler/tests/templates.factor b/basis/compiler/tests/templates.factor
similarity index 92%
rename from core/compiler/tests/templates.factor
rename to basis/compiler/tests/templates.factor
index 14d75cdc03..c8baaea164 100755
--- a/core/compiler/tests/templates.factor
+++ b/basis/compiler/tests/templates.factor
@@ -1,5 +1,5 @@
 ! Black box testing of templating optimization
-USING: arrays compiler kernel kernel.private math
+USING: accessors arrays compiler kernel kernel.private math
 hashtables.private math.private namespaces sequences
 sequences.private tools.test namespaces.private slots.private
 sequences.private byte-arrays alien alien.accessors layouts
@@ -31,7 +31,7 @@ unit-test
 
 [ 2 ] [ 1 2 [ swap fixnum/i ] compile-call ] unit-test
 
-: foo ;
+: foo ( -- ) ;
 
 [ 5 5 ]
 [ 1.2 [ tag [ foo ] keep ] compile-call ]
@@ -103,10 +103,10 @@ unit-test
 
 
 ! Test how dispatch handles the end of a basic block
-: try-breaking-dispatch
+: try-breaking-dispatch ( n a b -- a b str )
     float+ swap { [ "hey" ] [ "bye" ] } dispatch ;
 
-: try-breaking-dispatch-2
+: try-breaking-dispatch-2 ( -- ? )
     1 1.0 2.5 try-breaking-dispatch "bye" = >r 3.5 = r> and ;
 
 [ t ] [
@@ -138,12 +138,12 @@ unit-test
     0 swap hellish-bug-2 drop ;
 
 [ ] [
-    H{ { 1 2 } { 3 4 } } dup hash-array
+    H{ { 1 2 } { 3 4 } } dup array>>
     [ 0 swap hellish-bug-2 drop ] compile-call
 ] unit-test
 
 ! Regression
-: foox
+: foox ( obj -- obj )
     dup not
     [ drop 3 ] [ dup tuple? [ drop 4 ] [ drop 5 ] if ] if ;
 
@@ -189,7 +189,7 @@ TUPLE: my-tuple ;
 ] unit-test
 
 ! Regression
-: a-dummy drop "hi" print ;
+: a-dummy ( -- ) drop "hi" print ;
 
 [ ] [
     1 [
@@ -203,7 +203,7 @@ TUPLE: my-tuple ;
     ] compile-call
 ] unit-test
 
-: float-spill-bug
+: float-spill-bug ( a -- b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b )
     {
         [ dup float+ ]
         [ dup float+ ]
@@ -245,13 +245,13 @@ TUPLE: my-tuple ;
         [ dup float+ ]
     } cleave ;
 
-[ t ] [ \ float-spill-bug compiled? ] unit-test
+[ t ] [ \ float-spill-bug compiled>> ] unit-test
 
 ! Regression
 : dispatch-alignment-regression ( -- c )
     { tuple vector } 3 slot { word } declare
     dup 1 slot 0 fixnum-bitand { [ ] } dispatch ;
 
-[ t ] [ \ dispatch-alignment-regression compiled? ] unit-test
+[ t ] [ \ dispatch-alignment-regression compiled>> ] unit-test
 
 [ vector ] [ dispatch-alignment-regression ] unit-test
diff --git a/basis/compiler/tests/tuples.factor b/basis/compiler/tests/tuples.factor
new file mode 100755
index 0000000000..602b438432
--- /dev/null
+++ b/basis/compiler/tests/tuples.factor
@@ -0,0 +1,10 @@
+IN: compiler.tests
+USING: kernel tools.test compiler.units ;
+
+TUPLE: color red green blue ;
+
+[ T{ color f 1 2 3 } ]
+[ 1 2 3 [ color boa ] compile-call ] unit-test
+
+[ T{ color f f f f } ]
+[ [ color new ] compile-call ] unit-test
diff --git a/core/inference/authors.txt b/basis/compiler/tree/authors.txt
similarity index 100%
rename from core/inference/authors.txt
rename to basis/compiler/tree/authors.txt
diff --git a/basis/compiler/tree/builder/builder-docs.factor b/basis/compiler/tree/builder/builder-docs.factor
new file mode 100644
index 0000000000..8cf3796f0a
--- /dev/null
+++ b/basis/compiler/tree/builder/builder-docs.factor
@@ -0,0 +1,14 @@
+USING: help.markup help.syntax sequences quotations words 
+compiler.tree stack-checker.errors ;
+IN: compiler.tree.builder
+
+HELP: build-tree
+{ $values { "quot" quotation } { "nodes" "a sequence of nodes" } }
+{ $description "Attempts to construct tree SSA IR from a quotation." }
+{ $notes "This is the first stage of the compiler." }
+{ $errors "Throws an " { $link inference-error } " if stack effect inference fails." } ;
+
+HELP: build-tree-with
+{ $values { "in-stack" "a sequence of values" } { "quot" quotation } { "nodes" "a sequence of nodes" } { "out-stack" "a sequence of values" } }
+{ $description "Attempts to construct tree SSA IR from a quotation, starting with an initial data stack of values, and outputting stack resulting at the end." }
+{ $errors "Throws an " { $link inference-error } " if stack effect inference fails." } ;
diff --git a/basis/compiler/tree/builder/builder-tests.factor b/basis/compiler/tree/builder/builder-tests.factor
new file mode 100644
index 0000000000..30244725b2
--- /dev/null
+++ b/basis/compiler/tree/builder/builder-tests.factor
@@ -0,0 +1,11 @@
+IN: compiler.tree.builder.tests
+USING: compiler.tree.builder tools.test sequences kernel
+compiler.tree ;
+
+\ build-tree must-infer
+\ build-tree-with must-infer
+\ build-tree-from-word must-infer
+
+: inline-recursive ( -- ) inline-recursive ; inline recursive
+
+[ t ] [ \ inline-recursive build-tree-from-word [ #recursive? ] contains? nip ] unit-test
diff --git a/basis/compiler/tree/builder/builder.factor b/basis/compiler/tree/builder/builder.factor
new file mode 100644
index 0000000000..54bc445b25
--- /dev/null
+++ b/basis/compiler/tree/builder/builder.factor
@@ -0,0 +1,57 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry accessors quotations kernel sequences namespaces
+assocs words arrays vectors hints combinators stack-checker
+stack-checker.state stack-checker.visitor stack-checker.errors
+stack-checker.backend compiler.tree ;
+IN: compiler.tree.builder
+
+: with-tree-builder ( quot -- nodes )
+    [ V{ } clone stack-visitor set ] prepose
+    with-infer ; inline
+
+: build-tree ( quot -- nodes )
+    #! Not safe to call from inference transforms.
+    [ f infer-quot ] with-tree-builder nip ;
+
+: build-tree-with ( in-stack quot -- nodes out-stack )
+    #! Not safe to call from inference transforms.
+    [
+        [ >vector meta-d set ] [ f infer-quot ] bi*
+    ] with-tree-builder nip
+    unclip-last in-d>> ;
+
+: build-sub-tree ( #call quot -- nodes )
+    [ [ out-d>> ] [ in-d>> ] bi ] dip build-tree-with
+    over ends-with-terminate?
+    [ drop swap [ f swap #push ] map append ]
+    [ rot #copy suffix ]
+    if ;
+
+: (build-tree-from-word) ( word -- )
+    dup
+    [ "inline" word-prop ]
+    [ "recursive" word-prop ] bi and [
+        1quotation f infer-quot
+    ] [
+        [ specialized-def ]
+        [ dup 2array 1array ] bi infer-quot
+    ] if ;
+
+: check-cannot-infer ( word -- )
+    dup "cannot-infer" word-prop [ cannot-infer-effect ] [ drop ] if ;
+
+: check-no-compile ( word -- )
+    dup "no-compile" word-prop [ cannot-infer-effect ] [ drop ] if ;
+
+: build-tree-from-word ( word -- effect nodes )
+    [
+        [
+            {
+                [ check-cannot-infer ]
+                [ check-no-compile ]
+                [ (build-tree-from-word) ]
+                [ finish-word ]
+            } cleave
+        ] maybe-cannot-infer
+    ] with-tree-builder ;
diff --git a/basis/compiler/tree/checker/checker-tests.factor b/basis/compiler/tree/checker/checker-tests.factor
new file mode 100644
index 0000000000..5a8706b900
--- /dev/null
+++ b/basis/compiler/tree/checker/checker-tests.factor
@@ -0,0 +1,4 @@
+IN: compiler.tree.checker.tests
+USING: compiler.tree.checker tools.test ;
+
+\ check-nodes must-infer
diff --git a/basis/compiler/tree/checker/checker.factor b/basis/compiler/tree/checker/checker.factor
new file mode 100644
index 0000000000..b712a6e354
--- /dev/null
+++ b/basis/compiler/tree/checker/checker.factor
@@ -0,0 +1,210 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences kernel sets namespaces accessors assocs
+arrays combinators continuations columns math vectors
+stack-checker.branches
+compiler.tree
+compiler.tree.def-use
+compiler.tree.combinators ;
+IN: compiler.tree.checker
+
+! Check some invariants; this can help catch compiler bugs.
+
+ERROR: check-use-error value message ;
+
+: check-use ( value uses -- )
+    [ empty? [ "No use" check-use-error ] [ drop ] if ]
+    [ all-unique? [ drop ] [ "Uses not all unique" check-use-error ] if ] 2bi ;
+
+: check-def-use ( -- )
+    def-use get [ uses>> check-use ] assoc-each ;
+
+GENERIC: check-node* ( node -- )
+
+M: #shuffle check-node*
+    [ [ mapping>> values ] [ in-d>> ] bi subset? [ "Bad mapping inputs" throw ] unless ]
+    [ [ mapping>> keys ] [ out-d>> ] bi set= [ "Bad mapping outputs" throw ] unless ]
+    bi ;
+
+: check-lengths ( seq -- )
+    [ length ] map all-equal? [ "Bad lengths" throw ] unless ;
+
+M: #copy check-node* inputs/outputs 2array check-lengths ;
+
+: check->r/r> ( node -- )
+    inputs/outputs [ drop ] [ 2array check-lengths ] if-empty ;
+
+M: #>r check-node* check->r/r> ;
+
+M: #r> check-node* check->r/r> ;
+
+M: #return-recursive check-node* inputs/outputs 2array check-lengths ;
+
+M: #phi check-node*
+    [ [ phi-in-d>> <flipped> ] [ out-d>> ] bi 2array check-lengths ]
+    [ phi-in-d>> check-lengths ]
+    bi ;
+
+M: #enter-recursive check-node*
+    [ [ label>> enter-out>> ] [ out-d>> ] bi assert= ]
+    [ [ in-d>> ] [ out-d>> ] bi 2array check-lengths ]
+    [ recursive-phi-in check-lengths ]
+    tri ;
+
+M: #push check-node*
+    out-d>> length 1 = [ "Bad #push" throw ] unless ;
+
+M: node check-node* drop ;
+
+: check-values ( seq -- )
+    [ integer? ] all? [ "Bad values" throw ] unless ;
+
+ERROR: check-node-error node error ;
+
+: check-node ( node -- )
+    [
+        [ node-uses-values check-values ]
+        [ node-defs-values check-values ]
+        [ check-node* ]
+        tri
+    ] [ check-node-error ] recover ;
+
+SYMBOL: datastack
+SYMBOL: retainstack
+SYMBOL: terminated?
+
+GENERIC: check-stack-flow* ( node -- )
+
+: (check-stack-flow) ( nodes -- )
+    [ check-stack-flow* terminated? get not ] all? drop ;
+
+: init-stack-flow ( -- )
+    V{ } clone datastack set
+    V{ } clone retainstack set ;
+
+: check-stack-flow ( nodes -- )
+    [
+        init-stack-flow
+        (check-stack-flow)
+    ] with-scope ;
+
+: check-inputs ( seq var -- )
+    [ dup length ] dip [ swap cut* swap ] change
+    sequence= [ "Bad stack flow" throw ] unless ;
+
+: check-in-d ( node -- )
+    in-d>> datastack check-inputs ;
+
+: check-in-r ( node -- )
+    in-r>> retainstack check-inputs ;
+
+: check-outputs ( node var -- )
+    get push-all ;
+
+: check-out-d ( node -- )
+    out-d>> datastack check-outputs ;
+
+: check-out-r ( node -- )
+    out-r>> retainstack check-outputs ;
+
+M: #introduce check-stack-flow* check-out-d ;
+
+M: #push check-stack-flow* check-out-d ;
+
+M: #call check-stack-flow* [ check-in-d ] [ check-out-d ] bi ;
+
+M: #shuffle check-stack-flow* [ check-in-d ] [ check-out-d ] bi ;
+
+M: #>r check-stack-flow* [ check-in-d ] [ check-out-r ] bi ;
+
+M: #r> check-stack-flow* [ check-in-r ] [ check-out-d ] bi ;
+
+: assert-datastack-empty ( -- )
+    datastack get empty? [ "Data stack not empty" throw ] unless ;
+
+: assert-retainstack-empty ( -- )
+    retainstack get empty? [ "Retain stack not empty" throw ] unless ;
+
+M: #return check-stack-flow*
+    check-in-d
+    assert-datastack-empty
+    terminated? get [ assert-retainstack-empty ] unless ;
+
+M: #enter-recursive check-stack-flow*
+    check-out-d ;
+
+M: #return-recursive check-stack-flow*
+    [ check-in-d ] [ check-out-d ] bi ;
+
+M: #call-recursive check-stack-flow*
+    [ check-in-d ] [ check-out-d ] bi ;
+
+: check-terminate-in-d ( #terminate -- )
+    in-d>> datastack get over length tail* sequence=
+    [ "Bad terminate data stack" throw ] unless ;
+
+: check-terminate-in-r ( #terminate -- )
+    in-r>> retainstack get over length tail* sequence=
+    [ "Bad terminate retain stack" throw ] unless ;
+
+M: #terminate check-stack-flow*
+    terminated? on
+    [ check-terminate-in-d ]
+    [ check-terminate-in-r ] bi ;
+
+SYMBOL: branch-out
+
+: check-branch ( nodes -- stack )
+    [
+        datastack [ clone ] change
+        V{ } clone retainstack set
+        (check-stack-flow)
+        terminated? get [ assert-retainstack-empty ] unless
+        terminated? get f datastack get ?
+    ] with-scope ;
+
+M: #branch check-stack-flow*
+    [ check-in-d ]
+    [ children>> [ check-branch ] map branch-out set ]
+    bi ;
+
+: check-phi-in ( #phi -- )
+    phi-in-d>> branch-out get [
+        dup [
+            over length tail* sequence= [
+                "Branch outputs don't match phi inputs"
+                throw
+            ] unless
+        ] [
+            2drop
+        ] if
+    ] 2each ;
+
+: set-phi-datastack ( #phi -- )
+    phi-in-d>> first length
+    branch-out get [ ] find nip swap head* >vector datastack set ;
+
+M: #phi check-stack-flow*
+    branch-out get [ ] contains? [
+        [ check-phi-in ] [ set-phi-datastack ] [ check-out-d ] tri
+    ] [ drop terminated? on ] if ;
+
+M: #recursive check-stack-flow*
+    [ check-in-d ] [ child>> (check-stack-flow) ] bi ;
+
+M: #copy check-stack-flow* [ check-in-d ] [ check-out-d ] bi ;
+
+M: #alien-invoke check-stack-flow* [ check-in-d ] [ check-out-d ] bi ;
+
+M: #alien-indirect check-stack-flow* [ check-in-d ] [ check-out-d ] bi ;
+
+M: #alien-callback check-stack-flow* drop ;
+
+M: #declare check-stack-flow* drop ;
+
+: check-nodes ( nodes -- )
+    compute-def-use
+    check-def-use
+    [ [ check-node ] each-node ]
+    [ check-stack-flow ]
+    bi ;
diff --git a/core/inference/class/class-tests.factor b/basis/compiler/tree/cleanup/cleanup-tests.factor
old mode 100755
new mode 100644
similarity index 57%
rename from core/inference/class/class-tests.factor
rename to basis/compiler/tree/cleanup/cleanup-tests.factor
index e6ce2cfa0b..bb30cda685
--- a/core/inference/class/class-tests.factor
+++ b/basis/compiler/tree/cleanup/cleanup-tests.factor
@@ -1,27 +1,43 @@
-IN: inference.class.tests
-USING: arrays math.private kernel math compiler inference
-inference.dataflow optimizer tools.test kernel.private generic
-sequences words inference.class quotations alien
-alien.c-types strings sbufs sequences.private
-slots.private combinators definitions compiler.units
-system layouts vectors optimizer.math.partial accessors
-optimizer.inlining math.order ;
+IN: compiler.tree.cleanup.tests
+USING: tools.test kernel.private kernel arrays sequences
+math.private math generic words quotations alien alien.c-types
+strings sbufs sequences.private slots.private combinators
+definitions system layouts vectors math.partial-dispatch
+math.order math.functions accessors hashtables classes assocs
+io.encodings.utf8 io.encodings.ascii io.encodings fry slots
+sorting.private
+compiler.tree
+compiler.tree.combinators
+compiler.tree.cleanup
+compiler.tree.builder
+compiler.tree.normalization
+compiler.tree.propagation
+compiler.tree.checker ;
 
-[ t ] [ T{ literal-constraint f 1 2 } T{ literal-constraint f 1 2 } equal? ] unit-test
+: cleaned-up-tree ( quot -- nodes )
+    build-tree normalize propagate cleanup dup check-nodes ;
 
-[ f ] [ T{ literal-constraint f 1 3 } T{ literal-constraint f 1 2 } equal? ] unit-test
+[ t ] [ [ [ 1 ] [ 2 ] if ] cleaned-up-tree [ #if? ] contains-node? ] unit-test
 
-! Make sure these compile even though this is invalid code
-[ ] [ [ 10 mod 3.0 /i ] dataflow optimize drop ] unit-test
-[ ] [ [ 10 mod 3.0 shift ] dataflow optimize drop ] unit-test
+[ f ] [ [ f [ 1 ] [ 2 ] if ] cleaned-up-tree [ #if? ] contains-node? ] unit-test
 
-! Ensure type inference works as it is supposed to by checking
-! if various methods get inlined
+[ f ] [ [ { array } declare [ 1 ] [ 2 ] if ] cleaned-up-tree [ #if? ] contains-node? ] unit-test
+
+[ t ] [ [ { sequence } declare [ 1 ] [ 2 ] if ] cleaned-up-tree [ #if? ] contains-node? ] unit-test
+
+: recursive-test ( a -- b ) dup [ not recursive-test ] when ; inline recursive
+
+[ t ] [ [ recursive-test ] cleaned-up-tree [ #recursive? ] contains-node? ] unit-test
+
+[ f ] [ [ f recursive-test ] cleaned-up-tree [ #recursive? ] contains-node? ] unit-test
+
+[ t ] [ [ t recursive-test ] cleaned-up-tree [ #recursive? ] contains-node? ] unit-test
 
 : inlined? ( quot seq/word -- ? )
+    [ cleaned-up-tree ] dip
     dup word? [ 1array ] when
-    swap dataflow optimize
-    [ node-param swap member? ] with node-exists? not ;
+    '[ dup #call? [ word>> , member? ] [ drop f ] if ]
+    contains-node? not ;
 
 [ f ] [
     [ { integer } declare >fixnum ]
@@ -42,10 +58,6 @@ M: f detect-f ;
     [ dup [ mynot ] [ ] if detect-f ] \ detect-f inlined?
 ] unit-test
 
-[ ] [ [ fixnum< ] dataflow optimize drop ] unit-test
-
-[ ] [ [ fixnum< [ ] [ ] if ] dataflow optimize drop ] unit-test
-
 GENERIC: xyz ( n -- n )
 
 M: integer xyz ;
@@ -61,12 +73,12 @@ M: object xyz ;
     \ xyz inlined?
 ] unit-test
 
-: (fx-repeat) ( i n quot -- )
+: (fx-repeat) ( i n quot: ( i -- i ) -- )
     2over fixnum>= [
         3drop
     ] [
         [ swap >r call 1 fixnum+fast r> ] keep (fx-repeat)
-    ] if ; inline
+    ] if ; inline recursive
 
 : fx-repeat ( n quot -- )
     0 -rot (fx-repeat) ; inline
@@ -77,12 +89,12 @@ M: object xyz ;
     [ [ dup 2 + drop ] fx-repeat ] \ + inlined?
 ] unit-test
 
-: (i-repeat) ( i n quot -- )
+: (i-repeat) ( i n quot: ( i -- i ) -- )
     2over dup xyz drop >= [
         3drop
     ] [
         [ swap >r call 1+ r> ] keep (i-repeat)
-    ] if ; inline
+    ] if ; inline recursive
 
 : i-repeat >r { integer } declare r> 0 -rot (i-repeat) ; inline
 
@@ -132,48 +144,13 @@ M: object xyz ;
 
 [ f ] [ [ dup 0 < [ neg ] when ] \ - inlined? ] unit-test
 
-[ f ] [
+[ t ] [
     [
         [ no-cond ] 1
         [ 1array dup quotation? [ >quotation ] unless ] times
     ] \ quotation? inlined?
 ] unit-test
 
-[ f ] [ [ <reversed> length ] \ slot inlined? ] unit-test
-
-! We don't want to use = to compare literals
-: foo reverse ;
-
-\ foo [
-    [
-        fixnum 0 `output class,
-        V{ } dup dup push 0 `input literal,
-    ] set-constraints
-] "constraints" set-word-prop
-
-DEFER: blah
-
-[ ] [
-    [
-        \ blah
-        [ dup V{ } eq? [ foo ] when ] dup second dup push define
-    ] with-compilation-unit
-
-    \ blah word-def dataflow optimize drop
-] unit-test
-
-GENERIC: detect-fx ( n -- n )
-
-M: fixnum detect-fx ;
-
-[ t ] [
-    [
-        [ uchar-nth ] 2keep [ uchar-nth ] 2keep uchar-nth
-        >r >r 298 * r> 100 * - r> 208 * - 128 + -8 shift
-        255 min 0 max detect-fx
-    ] \ detect-fx inlined?
-] unit-test
-
 [ t ] [
     [
         1000000000000000000000000000000000 [ ] times
@@ -190,23 +167,6 @@ M: fixnum detect-fx ;
     \ +-integer-fixnum inlined?
 ] unit-test
 
-
-[ t ] [
-    [ { string sbuf } declare push-all ] \ push-all inlined?
-] unit-test
-
-[ t ] [
-    [ { string sbuf } declare push-all ] \ + inlined?
-] unit-test
-
-[ t ] [
-    [ { string sbuf } declare push-all ] \ fixnum+ inlined?
-] unit-test
-
-[ t ] [
-    [ { string sbuf } declare push-all ] \ >fixnum inlined?
-] unit-test
-
 [ t ] [
     [ { array-capacity } declare 0 < ] \ < inlined?
 ] unit-test
@@ -236,17 +196,17 @@ GENERIC: annotate-entry-test-1 ( x -- )
 
 M: fixnum annotate-entry-test-1 drop ;
 
-: (annotate-entry-test-2) ( from to quot -- )
-    2over >= [
-        3drop
+: (annotate-entry-test-2) ( from to -- )
+    2dup >= [
+        2drop
     ] [
-        [ swap >r call dup annotate-entry-test-1 1+ r> ] keep (annotate-entry-test-2)
-    ] if ; inline
+        >r dup annotate-entry-test-1 1+ r> (annotate-entry-test-2)
+    ] if ; inline recursive
 
 : annotate-entry-test-2 0 -rot (annotate-entry-test-2) ; inline
 
 [ f ] [
-    [ { bignum } declare [ ] annotate-entry-test-2 ]
+    [ { bignum } declare annotate-entry-test-2 ]
     \ annotate-entry-test-1 inlined?
 ] unit-test
 
@@ -269,10 +229,6 @@ M: float detect-float ;
     \ detect-float inlined?
 ] unit-test
 
-[ t ] [
-    [ 3 + = ] \ equal? inlined?
-] unit-test
-
 [ f ] [
     [ { fixnum fixnum } declare 7 bitand neg shift ]
     \ fixnum-shift-fast inlined?
@@ -305,11 +261,6 @@ cell-bits 32 = [
     ] unit-test
 ] when
 
-[ f ] [
-    [ { integer } declare -63 shift 4095 bitand ]
-    \ shift inlined?
-] unit-test
-
 [ t ] [
     [ B{ 1 0 } *short 0 number= ]
     \ number= inlined?
@@ -356,42 +307,12 @@ cell-bits 32 = [
     ] \ + inlined?
 ] unit-test
 
-[ f ] [
-    [
-        256 mod
-    ] { mod fixnum-mod } inlined?
-] unit-test
-
-[ f ] [
-    [
-        dup 0 >= [ 256 mod ] when
-    ] { mod fixnum-mod } inlined?
-] unit-test
-
-[ t ] [
-    [
-        { integer } declare dup 0 >= [ 256 mod ] when
-    ] { mod fixnum-mod } inlined?
-] unit-test
-
-[ t ] [
-    [
-        { integer } declare 256 rem
-    ] { mod fixnum-mod } inlined?
-] unit-test
-
-[ t ] [
-    [
-        { integer } declare [ 256 rem ] map
-    ] { mod fixnum-mod rem } inlined?
-] unit-test
-
 [ t ] [
     [ 1000 [ 1+ ] map ] { 1+ fixnum+ } inlined?
 ] unit-test
 
 : rec ( a -- b )
-    dup 0 > [ 1 - rec ] when ; inline
+    dup 0 > [ 1 - rec ] when ; inline recursive
 
 [ t ] [
     [ { fixnum } declare rec 1 + ]
@@ -399,7 +320,7 @@ cell-bits 32 = [
 ] unit-test
 
 : fib ( m -- n )
-    dup 2 < [ drop 1 ] [ dup 1 - fib swap 2 - fib + ] if ; inline
+    dup 2 < [ drop 1 ] [ dup 1 - fib swap 2 - fib + ] if ; inline recursive
 
 [ t ] [
     [ 27.0 fib ] { < - + } inlined?
@@ -421,47 +342,6 @@ cell-bits 32 = [
     [ 27/2 fib ] { < - } inlined?
 ] unit-test
 
-: hang-regression ( m n -- x )
-    over 0 number= [
-        nip
-    ] [
-        dup [
-            drop 1 hang-regression
-        ] [
-            dupd hang-regression hang-regression
-        ] if
-    ] if ; inline
-
-[ t ] [
-    [ dup fixnum? [ 3 over hang-regression ] [ 3 over hang-regression ] if
-] { } inlined? ] unit-test
-
-: detect-null ( a -- b ) dup drop ;
-
-\ detect-null {
-    { [ dup dup in-d>> first node-class null eq? ] [ [ ] f splice-quot ] }
-} define-optimizers
-
-[ t ] [
-    [ { null } declare detect-null ] \ detect-null inlined?
-] unit-test
-
-[ t ] [
-    [ { null null } declare + detect-null ] \ detect-null inlined?
-] unit-test
-
-[ f ] [
-    [ { null fixnum } declare + detect-null ] \ detect-null inlined?
-] unit-test
-
-GENERIC: detect-integer ( a -- b )
-
-M: integer detect-integer ;
-
-[ t ] [
-    [ { null fixnum } declare + detect-integer ] \ detect-integer inlined?
-] unit-test
-
 [ t ] [
     [ { fixnum } declare 10 [ -1 shift ] times ] \ shift inlined?
 ] unit-test
@@ -475,16 +355,6 @@ M: integer detect-integer ;
     \ fixnum-bitand inlined?
 ] unit-test
 
-[ t ] [
-    [ { integer } declare 127 bitand 3 + ]
-    { + +-integer-fixnum +-integer-fixnum-fast bitand } inlined?
-] unit-test
-
-[ f ] [
-    [ { integer } declare 127 bitand 3 + ]
-    { >fixnum } inlined?
-] unit-test
-
 [ t ] [
     [ { fixnum } declare [ drop ] each-integer ]
     { < <-integer-fixnum +-integer-fixnum + } inlined?
@@ -502,7 +372,7 @@ M: integer detect-integer ;
 
 [ t ] [
     [ { fixnum } declare 0 [ + ] reduce ]
-    { < <-integer-fixnum } inlined?
+    { < <-integer-fixnum nth-unsafe } inlined?
 ] unit-test
 
 [ f ] [
@@ -510,22 +380,6 @@ M: integer detect-integer ;
     \ +-integer-fixnum inlined?
 ] unit-test
 
-[ t ] [
-    [
-        { integer } declare
-        dup 0 >= [
-            615949 * 797807 + 20 2^ mod dup 19 2^ -
-        ] [ dup ] if
-    ] { * + shift mod fixnum-mod fixnum* fixnum+ fixnum- } inlined?
-] unit-test
-
-[ t ] [
-    [
-        { fixnum } declare
-        615949 * 797807 + 20 2^ mod dup 19 2^ -
-    ] { >fixnum } inlined?
-] unit-test
-
 [ f ] [
     [
         { integer } declare [ ] map
@@ -546,37 +400,60 @@ M: integer detect-integer ;
 
 [ t ] [
     [
-        { integer } declare 0 swap
-        [
-            drop 615949 * 797807 + 20 2^ rem dup 19 2^ -
-        ] map
-    ] { * + shift rem mod fixnum-mod fixnum* fixnum+ fixnum- } inlined?
+        { array } declare length
+        1 + dup 100 fixnum> [ 1 fixnum+ ] when
+    ] \ fixnum+ inlined?
 ] unit-test
+ 
+[ t ] [
+    [ [ resize-array ] keep length ] \ length inlined?
+] unit-test
+
+[ t ] [
+    [ dup 0 > [ sqrt ] when ] \ sqrt inlined?
+] unit-test
+
+[ t ] [
+    [ { utf8 } declare decode-char ] \ decode-char inlined?
+] unit-test
+
+[ t ] [
+    [ { ascii } declare decode-char ] \ decode-char inlined?
+] unit-test
+
+[ t ] [ [ { 1 2 } length ] { length length>> slot } inlined? ] unit-test
 
 [ t ] [
     [
-        { fixnum } declare 0 swap
-        [
-            drop 615949 * 797807 + 20 2^ rem dup 19 2^ -
-        ] map
-    ] { * + shift rem mod fixnum-mod fixnum* fixnum+ fixnum- >fixnum } inlined?
+        { integer } declare [ 0 >= ] map
+    ] { >= fixnum>= } inlined?
+] unit-test
+
+[ ] [
+    [
+        4 pick array-capacity?
+        [ set-slot ] [ \ array-capacity 2nip bad-slot-value ] if
+    ] cleaned-up-tree drop
+] unit-test
+
+[ ] [
+    [ { merge } declare accum>> 0 >>length ] cleaned-up-tree drop
+] unit-test
+
+[ ] [
+    [
+        [ "X" throw ]
+        [ dupd dup -1 < [ 0 >= [ ] [ "X" throw ] if ] [ drop ] if ]
+        if
+    ] cleaned-up-tree drop
 ] unit-test
 
 [ t ] [
-    [ { integer } declare bitnot detect-integer ]
-    \ detect-integer inlined?
+    [ [ 2array ] [ 0 3array ] if first ]
+    { nth-unsafe < <= > >= } inlined?
 ] unit-test
 
-! Later
-
-! [ t ] [
-!     [
-!         { integer } declare [ 256 mod ] map
-!     ] { mod fixnum-mod } inlined?
-! ] unit-test
-! 
-! [ t ] [
-!     [
-!         { integer } declare [ 0 >= ] map
-!     ] { >= fixnum>= } inlined?
-! ] unit-test
+[ ] [
+    [ [ >r "A" throw r> ] [ "B" throw ] if ]
+    cleaned-up-tree drop
+] unit-test
diff --git a/basis/compiler/tree/cleanup/cleanup.factor b/basis/compiler/tree/cleanup/cleanup.factor
new file mode 100644
index 0000000000..44a6a11802
--- /dev/null
+++ b/basis/compiler/tree/cleanup/cleanup.factor
@@ -0,0 +1,171 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors sequences sequences.deep combinators fry
+classes.algebra namespaces assocs words math math.private
+math.partial-dispatch math.intervals classes classes.tuple
+classes.tuple.private layouts definitions stack-checker.state
+stack-checker.branches
+compiler.intrinsics
+compiler.tree
+compiler.tree.combinators
+compiler.tree.propagation.info
+compiler.tree.propagation.branches ;
+IN: compiler.tree.cleanup
+
+! A phase run after propagation to finish the job, so to speak.
+! Codifies speculative inlining decisions, deletes branches
+! marked as never taken, and flattens local recursive blocks
+! that do not call themselves.
+
+GENERIC: delete-node ( node -- )
+
+M: #call-recursive delete-node
+    dup label>> [ [ eq? not ] with filter ] change-calls drop ;
+
+M: #return-recursive delete-node
+    label>> f >>return drop ;
+
+M: node delete-node drop ;
+
+: delete-nodes ( nodes -- ) [ delete-node ] each-node ;
+
+GENERIC: cleanup* ( node -- node/nodes )
+
+: cleanup ( nodes -- nodes' )
+    #! We don't recurse into children here, instead the methods
+    #! do it since the logic is a bit more involved
+    [ cleanup* ] map flatten ;
+
+: cleanup-folding? ( #call -- ? )
+    node-output-infos
+    [ f ] [ [ literal?>> ] all? ] if-empty ;
+
+: cleanup-folding ( #call -- nodes )
+    #! Replace a #call having a known result with a #drop of its
+    #! inputs followed by #push nodes for the outputs.
+    [ word>> inlined-dependency depends-on ]
+    [
+        [ node-output-infos ] [ out-d>> ] bi
+        [ [ literal>> ] dip #push ] 2map
+    ]
+    [ in-d>> #drop ]
+    tri prefix ;
+
+: add-method-dependency ( #call -- )
+    dup method>> word? [
+        [ word>> ] [ class>> ] bi depends-on-generic
+    ] [ drop ] if ;
+
+: cleanup-inlining ( #call -- nodes )
+    [
+        dup method>>
+        [ add-method-dependency ]
+        [ word>> inlined-dependency depends-on ] if
+    ] [ body>> cleanup ] bi ;
+
+! Removing overflow checks
+: no-overflow-variant ( op -- fast-op )
+    H{
+        { fixnum+ fixnum+fast }
+        { fixnum- fixnum-fast }
+        { fixnum* fixnum*fast }
+        { fixnum-shift fixnum-shift-fast }
+    } at ;
+
+: (remove-overflow-check?) ( #call -- ? )
+    node-output-infos first class>> fixnum class<= ;
+
+: small-shift? ( #call -- ? )
+    node-input-infos second interval>>
+    cell-bits tag-bits get - [ neg ] keep [a,b] interval-subset? ;
+
+: remove-overflow-check? ( #call -- ? )
+    {
+        { [ dup word>> \ fixnum-shift eq? ] [ [ (remove-overflow-check?) ] [ small-shift? ] bi and ] }
+        { [ dup word>> no-overflow-variant ] [ (remove-overflow-check?) ] }
+        [ drop f ]
+    } cond ;
+
+: remove-overflow-check ( #call -- #call )
+    [ in-d>> ] [ out-d>> ] [ word>> no-overflow-variant ] tri #call cleanup* ;
+
+M: #call cleanup*
+    {
+        { [ dup body>> ] [ cleanup-inlining ] }
+        { [ dup cleanup-folding? ] [ cleanup-folding ] }
+        { [ dup remove-overflow-check? ] [ remove-overflow-check ] }
+        [ ]
+    } cond ;
+
+M: #declare cleanup* drop f ;
+
+: delete-unreachable-branches ( #branch -- )
+    dup live-branches>> '[
+        ,
+        [ [ [ drop ] [ delete-nodes ] if ] 2each ]
+        [ select-children ]
+        2bi
+    ] change-children drop ;
+
+: fold-only-branch ( #branch -- node/nodes )
+    #! If only one branch is live we don't need to branch at
+    #! all; just drop the condition value.
+    dup live-children sift dup length {
+        { 0 [ 2drop f ] }
+        { 1 [ first swap in-d>> #drop prefix ] }
+        [ 2drop ]
+    } case ;
+
+SYMBOL: live-branches
+
+: cleanup-children ( #branch -- )
+    [ [ cleanup ] map ] change-children drop ;
+
+M: #branch cleanup*
+    {
+        [ delete-unreachable-branches ]
+        [ cleanup-children ]
+        [ fold-only-branch ]
+        [ live-branches>> live-branches set ]
+    } cleave ;
+
+: output-fs ( values -- nodes )
+    [ f swap #push ] map ;
+
+: eliminate-single-phi ( #phi -- node )
+    [ phi-in-d>> first ] [ out-d>> ] bi over [ +bottom+ eq? ] all?
+    [ [ drop ] [ output-fs ] bi* ]
+    [ #copy ]
+    if ;
+
+: eliminate-phi ( #phi -- node )
+    live-branches get sift length {
+        { 0 [ out-d>> output-fs ] }
+        { 1 [ eliminate-single-phi ] }
+        [ drop ]
+    } case ;
+
+M: #phi cleanup*
+    #! Remove #phi function inputs which no longer exist.
+    live-branches get
+    [ '[ , sift-children ] change-phi-in-d ]
+    [ '[ , sift-children ] change-phi-info-d ]
+    [ '[ , sift-children ] change-terminated ] tri
+    eliminate-phi
+    live-branches off ;
+
+: >copy ( node -- #copy ) [ in-d>> ] [ out-d>> ] bi #copy ;
+
+: flatten-recursive ( #recursive -- nodes )
+    #! convert #enter-recursive and #return-recursive into
+    #! #copy nodes.
+    child>>
+    unclip >copy prefix
+    unclip-last >copy suffix ;
+
+M: #recursive cleanup*
+    #! Inline bodies of #recursive blocks with no calls left.
+    [ cleanup ] change-child
+    dup label>> calls>> empty? [ flatten-recursive ] when ;
+
+M: node cleanup* ;
diff --git a/basis/compiler/tree/combinators/combinators-tests.factor b/basis/compiler/tree/combinators/combinators-tests.factor
new file mode 100644
index 0000000000..d012b5f658
--- /dev/null
+++ b/basis/compiler/tree/combinators/combinators-tests.factor
@@ -0,0 +1,6 @@
+IN: compiler.tree.combinators.tests
+USING: compiler.tree.combinators tools.test kernel ;
+
+{ 1 0 } [ [ drop ] each-node ] must-infer-as
+{ 1 1 } [ [ ] map-nodes ] must-infer-as
+{ 1 1 } [ [ ] contains-node? ] must-infer-as
diff --git a/basis/compiler/tree/combinators/combinators.factor b/basis/compiler/tree/combinators/combinators.factor
new file mode 100644
index 0000000000..0f4dc3f2a3
--- /dev/null
+++ b/basis/compiler/tree/combinators/combinators.factor
@@ -0,0 +1,61 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs fry kernel accessors sequences sequences.deep arrays
+stack-checker.inlining namespaces compiler.tree ;
+IN: compiler.tree.combinators
+
+: each-node ( nodes quot: ( node -- ) -- )
+    dup dup '[
+        , [
+            dup #branch? [
+                children>> [ , each-node ] each
+            ] [
+                dup #recursive? [
+                    child>> , each-node
+                ] [ drop ] if
+            ] if
+        ] bi
+    ] each ; inline recursive
+
+: map-nodes ( nodes quot: ( node -- node' ) -- nodes )
+    dup dup '[
+        @
+        dup #branch? [
+            [ [ , map-nodes ] map ] change-children
+        ] [
+            dup #recursive? [
+                [ , map-nodes ] change-child
+            ] when
+        ] if
+    ] map flatten ; inline recursive
+
+: contains-node? ( nodes quot: ( node -- ? ) -- ? )
+    dup dup '[
+        , keep swap [ drop t ] [
+            dup #branch? [
+                children>> [ , contains-node? ] contains?
+            ] [
+                dup #recursive? [
+                    child>> , contains-node?
+                ] [ drop f ] if
+            ] if
+        ] if
+    ] contains? ; inline recursive
+
+: select-children ( seq flags -- seq' )
+    [ [ drop f ] unless ] 2map ;
+
+: sift-children ( seq flags -- seq' )
+    zip [ nip ] assoc-filter keys ;
+
+: (3each) [ 3array flip ] dip [ first3 ] prepose ; inline
+
+: 3each ( seq1 seq2 seq3 quot -- seq ) (3each) each ; inline
+
+: 3map ( seq1 seq2 seq3 quot -- seq ) (3each) map ; inline
+
+: until-fixed-point ( #recursive quot: ( node -- ) -- )
+    over label>> t >>fixed-point drop
+    [ with-scope ] 2keep
+    over label>> fixed-point>> [ 2drop ] [ until-fixed-point ] if ;
+    inline recursive
diff --git a/basis/compiler/tree/comparisons/comparisons.factor b/basis/compiler/tree/comparisons/comparisons.factor
new file mode 100644
index 0000000000..5242302411
--- /dev/null
+++ b/basis/compiler/tree/comparisons/comparisons.factor
@@ -0,0 +1,50 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math math.order math.intervals assocs combinators ;
+IN: compiler.tree.comparisons
+
+! Some utilities for working with comparison operations.
+
+: comparison-ops { < > <= >= } ;
+
+: generic-comparison-ops { before? after? before=? after=? } ;
+
+: assumption ( i1 i2 op -- i3 )
+    {
+        { \ <  [ assume< ] }
+        { \ >  [ assume> ] }
+        { \ <= [ assume<= ] }
+        { \ >= [ assume>= ] }
+    } case ;
+
+: interval-comparison ( i1 i2 op -- result )
+    {
+        { \ <  [ interval< ] }
+        { \ >  [ interval> ] }
+        { \ <= [ interval<= ] }
+        { \ >= [ interval>= ] }
+    } case ;
+
+: swap-comparison ( op -- op' )
+    {
+        { < > }
+        { > < }
+        { <= >= }
+        { >= <= }
+    } at ;
+
+: negate-comparison ( op -- op' )
+    {
+        { < >= }
+        { > <= }
+        { <= > }
+        { >= < }
+    } at ;
+
+: specific-comparison ( op -- op' )
+    {
+        { before? < }
+        { after? > }
+        { before=? <= }
+        { after=? >= }
+    } at ;
diff --git a/basis/compiler/tree/dead-code/branches/branches.factor b/basis/compiler/tree/dead-code/branches/branches.factor
new file mode 100644
index 0000000000..0014a1d4d7
--- /dev/null
+++ b/basis/compiler/tree/dead-code/branches/branches.factor
@@ -0,0 +1,64 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences namespaces kernel accessors assocs sets fry
+arrays combinators columns stack-checker.backend
+stack-checker.branches compiler.tree compiler.tree.combinators
+compiler.tree.dead-code.liveness compiler.tree.dead-code.simple
+;
+IN: compiler.tree.dead-code.branches
+
+M: #if mark-live-values* look-at-inputs ;
+
+M: #dispatch mark-live-values* look-at-inputs ;
+
+: look-at-phi ( value outputs inputs -- )
+    [ index ] dip swap dup [ <column> look-at-values ] [ 2drop ] if ;
+
+M: #phi compute-live-values*
+    #! If any of the outputs of a #phi are live, then the
+    #! corresponding inputs are live too.
+    [ out-d>> ] [ phi-in-d>> ] bi look-at-phi ;
+
+SYMBOL: if-node
+
+M: #branch remove-dead-code*
+    [ [ [ (remove-dead-code) ] map ] change-children ]
+    [ if-node set ]
+    bi ;
+
+: remove-phi-inputs ( #phi -- )
+    if-node get children>>
+    [ dup ends-with-terminate? [ drop f ] [ peek out-d>> ] if ] map
+    pad-with-bottom >>phi-in-d drop ;
+
+: live-value-indices ( values -- indices )
+    [ length ] keep live-values get
+    '[ , nth , key? ] filter ; inline
+
+: drop-indexed-values ( values indices -- node )
+    [ drop filter-live ] [ nths ] 2bi
+    [ make-values ] keep
+    [ drop ] [ zip ] 2bi
+    #shuffle ;
+
+: insert-drops ( nodes values indices -- nodes' )
+    '[
+        over ends-with-terminate?
+        [ drop ] [ , drop-indexed-values suffix ] if
+    ] 2map ;
+
+: hoist-drops ( #phi -- )
+    if-node get swap
+    [ phi-in-d>> ] [ out-d>> live-value-indices ] bi
+    '[ , , insert-drops ] change-children drop ;
+
+: remove-phi-outputs ( #phi -- )
+    [ filter-live ] change-out-d drop ;
+
+M: #phi remove-dead-code*
+    {
+        [ hoist-drops ]
+        [ remove-phi-inputs ]
+        [ remove-phi-outputs ]
+        [ ]
+    } cleave ;
diff --git a/basis/compiler/tree/dead-code/dead-code-tests.factor b/basis/compiler/tree/dead-code/dead-code-tests.factor
new file mode 100644
index 0000000000..e8d2b29027
--- /dev/null
+++ b/basis/compiler/tree/dead-code/dead-code-tests.factor
@@ -0,0 +1,189 @@
+USING: namespaces assocs sequences compiler.tree.builder
+compiler.tree.dead-code compiler.tree.def-use compiler.tree
+compiler.tree.combinators compiler.tree.propagation
+compiler.tree.cleanup compiler.tree.escape-analysis
+compiler.tree.tuple-unboxing compiler.tree.debugger
+compiler.tree.normalization compiler.tree.checker tools.test
+kernel math stack-checker.state accessors combinators io
+prettyprint words sequences.deep sequences.private arrays
+classes kernel.private ;
+IN: compiler.tree.dead-code.tests
+
+\ remove-dead-code must-infer
+
+: count-live-values ( quot -- n )
+    build-tree
+    normalize
+    propagate
+    cleanup
+    escape-analysis
+    unbox-tuples
+    compute-def-use
+    remove-dead-code
+    0 swap [
+        dup
+        [ #push? ] [ #introduce? ] bi or
+        [ out-d>> length + ] [ drop ] if
+    ] each-node ;
+
+[ 3 ] [ [ 1 2 3 ] count-live-values ] unit-test
+
+[ 1 ] [ [ drop ] count-live-values ] unit-test
+
+[ 0 ] [ [ 1 drop ] count-live-values ] unit-test
+
+[ 1 ] [ [ 1 2 drop ] count-live-values ] unit-test
+
+[ 3 ] [ [ [ 1 ] [ 2 ] if ] count-live-values ] unit-test
+
+[ 1 ] [ [ [ 1 ] [ 2 ] if drop ] count-live-values ] unit-test
+
+[ 2 ] [ [ [ 1 ] [ dup ] if drop ] count-live-values ] unit-test
+
+[ 2 ] [ [ 1 + ] count-live-values ] unit-test
+
+[ 0 ] [ [ 1 2 + drop ] count-live-values ] unit-test
+
+[ 3 ] [ [ 1 + 3 + ] count-live-values ] unit-test
+
+[ 0 ] [ [ 1 2 + 3 + drop ] count-live-values ] unit-test
+
+[ 4 ] [ [ [ 1 ] [ 2 ] if 3 + ] count-live-values ] unit-test
+
+[ 1 ] [ [ [ 1 ] [ 2 ] if 3 + drop ] count-live-values ] unit-test
+
+[ 0 ] [ [ [ ] call ] count-live-values ] unit-test
+
+[ 1 ] [ [ [ 1 ] call ] count-live-values ] unit-test
+
+[ 2 ] [ [ [ 1 ] [ 2 ] compose call ] count-live-values ] unit-test
+
+[ 0 ] [ [ [ 1 ] [ 2 ] compose call + drop ] count-live-values ] unit-test
+
+[ 3 ] [ [ 10 [ ] times ] count-live-values ] unit-test
+
+: optimize-quot ( quot -- quot' )
+    build-tree
+    normalize
+    propagate
+    cleanup
+    escape-analysis
+    unbox-tuples
+    compute-def-use
+    remove-dead-code
+    "no-check" get [ dup check-nodes ] unless nodes>quot ;
+
+[ [ drop 1 ] ] [ [ >r 1 r> drop ] optimize-quot ] unit-test
+
+[ [ read drop 1 2 ] ] [ [ read >r 1 2 r> drop ] optimize-quot ] unit-test
+
+[ [ over >r + r> ] ] [ [ [ + ] [ drop ] 2bi ] optimize-quot ] unit-test
+
+[ [ [ ] [ ] if ] ] [ [ [ 1 ] [ 2 ] if drop ] optimize-quot ] unit-test
+
+: flushable-1 ( a b -- c ) 2drop f ; flushable
+: flushable-2 ( a b -- c ) 2drop f ; flushable
+
+[ [ 2nip [ ] [ ] if ] ] [
+    [ [ flushable-1 ] [ flushable-2 ] if drop ] optimize-quot
+] unit-test
+
+: non-flushable-3 ( a b -- c ) 2drop f ;
+
+[ [ [ 2drop ] [ non-flushable-3 drop ] if ] ] [
+    [ [ flushable-1 ] [ non-flushable-3 ] if drop ] optimize-quot
+] unit-test
+
+[ [ [ f ] [ f ] if ] ] [ [ [ f ] [ f ] if ] optimize-quot ] unit-test
+
+[ ] [ [ dup [ 3 throw ] [ ] if ] optimize-quot drop ] unit-test
+
+[ [ [ . ] [ drop ] if ] ] [ [ [ dup . ] [ ] if drop ] optimize-quot ] unit-test
+
+[ [ f ] ] [ [ f dup [ ] [ ] if ] optimize-quot ] unit-test
+
+[ ] [ [ over [ ] [ dup [ "X" throw ] [ "X" throw ] if ] if ] optimize-quot drop ] unit-test
+
+: boo ( a b -- c ) 2drop f ;
+
+[ [ dup 4 eq? [ nip ] [ boo ] if ] ] [ [ dup dup 4 eq? [ drop nip ] [ drop boo ] if ] optimize-quot ] unit-test
+
+: squish ( quot -- quot' )
+    [
+        {
+            { [ dup word? ] [ dup vocabulary>> [ drop "REC" ] unless ] }
+            { [ dup wrapper? ] [ dup wrapped>> vocabulary>> [ drop "WRAP" ] unless ] }
+            [ ]
+        } cond
+    ] deep-map ;
+
+: call-recursive-dce-1 ( a -- b )
+    [ call-recursive-dce-1 drop ] [ call-recursive-dce-1 ] bi ; inline recursive
+
+[ [ drop "WRAP" [ "REC" drop "REC" ] label ] ] [
+    [ call-recursive-dce-1 ] optimize-quot squish
+] unit-test
+
+: produce-a-value ( -- a ) f ;
+
+: call-recursive-dce-2 ( a -- b )
+    drop
+    produce-a-value dup . call-recursive-dce-2 ; inline recursive
+
+[ [ "WRAP" [ produce-a-value . "REC" ] label ] ] [
+    [ f call-recursive-dce-2 drop ] optimize-quot squish
+] unit-test
+
+[ [ "WRAP" [ produce-a-value . "REC" ] label ] ] [
+    [ f call-recursive-dce-2 ] optimize-quot squish
+] unit-test
+
+: call-recursive-dce-3 ( a -- )
+    call-recursive-dce-3 ; inline recursive
+
+[ [ [ drop "WRAP" [ "REC" ] label ] [ . ] if ] ] [
+    [ [ call-recursive-dce-3 ] [ . ] if ] optimize-quot squish
+] unit-test
+
+[ [ drop "WRAP" [ "REC" ] label ] ] [
+    [ call-recursive-dce-3 ] optimize-quot squish
+] unit-test
+
+: call-recursive-dce-4 ( a -- b )
+    call-recursive-dce-4 ; inline recursive
+
+[ [ drop "WRAP" [ "REC" ] label ] ] [
+    [ call-recursive-dce-4 ] optimize-quot squish
+] unit-test
+
+[ [ drop "WRAP" [ "REC" ] label ] ] [
+    [ call-recursive-dce-4 drop ] optimize-quot squish
+] unit-test
+
+[ ] [ [ f call-recursive-dce-3 swap ] optimize-quot drop ] unit-test
+
+: call-recursive-dce-5 ( -- ) call-recursive-dce-5 ; inline recursive
+
+[ ] [ [ call-recursive-dce-5 swap ] optimize-quot drop ] unit-test
+
+[ ] [ [ [ 0 -rot set-nth-unsafe ] curry (each-integer) ] optimize-quot drop ] unit-test
+
+: call-recursive-dce-6 ( i quot: ( i -- ? ) -- i )
+    dup call [ drop ] [ call-recursive-dce-6 ] if ; inline recursive
+
+[ ] [ [ [ ] curry [ ] swap compose call-recursive-dce-6 ] optimize-quot drop ] unit-test
+
+[ ] [ [ [ ] rot [ . ] curry pick [ roll 2drop call ] [ 2nip call ] if ] optimize-quot drop ] unit-test
+
+[ [ drop ] ] [ [ array? drop ] optimize-quot ] unit-test
+
+[ [ drop ] ] [ [ array instance? drop ] optimize-quot ] unit-test
+
+[ [ drop ] ] [ [ { integer } declare f <array> drop ] optimize-quot ] unit-test
+
+[ [ f <array> drop ] ] [ [ f <array> drop ] optimize-quot ] unit-test
+
+: call-recursive-dce-7 ( obj -- elt ? )
+    dup 5 = [ t ] [ dup [ call-recursive-dce-7 ] [ drop f f ] if ] if ; inline recursive
+
+[ ] [ [ call-recursive-dce-7 ] optimize-quot drop ] unit-test
diff --git a/basis/compiler/tree/dead-code/dead-code.factor b/basis/compiler/tree/dead-code/dead-code.factor
new file mode 100644
index 0000000000..38b5317d1c
--- /dev/null
+++ b/basis/compiler/tree/dead-code/dead-code.factor
@@ -0,0 +1,14 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: compiler.tree.dead-code.branches
+compiler.tree.dead-code.liveness
+compiler.tree.dead-code.recursive
+compiler.tree.dead-code.simple ;
+IN: compiler.tree.dead-code
+
+: remove-dead-code ( nodes -- nodes )
+    init-dead-code
+    mark-live-values
+    compute-live-values
+    (remove-dead-code) ;
+
diff --git a/basis/compiler/tree/dead-code/liveness/liveness.factor b/basis/compiler/tree/dead-code/liveness/liveness.factor
new file mode 100644
index 0000000000..08bfde55b2
--- /dev/null
+++ b/basis/compiler/tree/dead-code/liveness/liveness.factor
@@ -0,0 +1,51 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry accessors namespaces assocs deques search-deques
+kernel sequences sequences.deep words sets stack-checker.branches
+compiler.tree compiler.tree.def-use compiler.tree.combinators ;
+IN: compiler.tree.dead-code.liveness
+
+SYMBOL: work-list
+
+SYMBOL: live-values
+
+: live-value? ( value -- ? ) live-values get at ;
+
+: look-at-value ( values -- ) work-list get push-front ;
+
+: look-at-values ( values -- ) work-list get push-all-front ;
+
+: look-at-inputs ( node -- ) in-d>> look-at-values ;
+
+: init-dead-code ( -- )
+    <hashed-dlist> work-list set
+    H{ { +bottom+ f } } clone live-values set ;
+
+GENERIC: mark-live-values* ( node -- )
+
+: mark-live-values ( nodes -- nodes )
+    dup [ mark-live-values* ] each-node ; inline
+
+M: node mark-live-values* drop ;
+
+GENERIC: compute-live-values* ( value node -- )
+
+M: node compute-live-values* 2drop ;
+
+: iterate-live-values ( value -- )
+    dup live-values get key? [
+        drop
+    ] [
+        dup live-values get conjoin
+        dup defined-by compute-live-values*
+    ] if ;
+
+: compute-live-values ( -- )
+    work-list get [ iterate-live-values ] slurp-deque ;
+
+GENERIC: remove-dead-code* ( node -- node' )
+
+M: node remove-dead-code* ;
+
+: (remove-dead-code) ( nodes -- nodes' )
+    [ remove-dead-code* ] map flatten ;
diff --git a/basis/compiler/tree/dead-code/recursive/recursive.factor b/basis/compiler/tree/dead-code/recursive/recursive.factor
new file mode 100644
index 0000000000..03d4e919ee
--- /dev/null
+++ b/basis/compiler/tree/dead-code/recursive/recursive.factor
@@ -0,0 +1,90 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs sequences kernel locals fry
+combinators stack-checker.backend
+compiler.tree
+compiler.tree.dead-code.branches
+compiler.tree.dead-code.liveness
+compiler.tree.dead-code.simple ;
+IN: compiler.tree.dead-code.recursive
+
+M: #enter-recursive compute-live-values*
+    #! If the output of an #enter-recursive is live, then the
+    #! corresponding inputs to the #call-recursive are live also.
+    [ out-d>> ] [ recursive-phi-in ] bi look-at-phi ;
+
+M: #return-recursive compute-live-values*
+    [ out-d>> ] [ in-d>> ] bi look-at-mapping ;
+
+M: #call-recursive compute-live-values*
+    #! If the output of a #call-recursive is live, then the
+    #! corresponding inputs to #return nodes are live also.
+    [ out-d>> ] [ label>> return>> in-d>> ] bi look-at-mapping ;
+
+:: drop-dead-inputs ( inputs outputs -- #shuffle )
+    [let* | live-inputs [ inputs filter-live ]
+            new-live-inputs [ outputs inputs filter-corresponding make-values ] |
+        live-inputs
+        new-live-inputs
+        outputs
+        inputs
+        drop-values
+    ] ;
+
+M: #enter-recursive remove-dead-code*
+    [ filter-live ] change-out-d ;
+
+: drop-call-recursive-inputs ( node -- #shuffle )
+    dup [ in-d>> ] [ label>> enter-out>> ] bi drop-dead-inputs
+    [ out-d>> >>in-d drop ]
+    [ nip ]
+    2bi ;
+
+:: (drop-call-recursive-outputs) ( inputs outputs -- #shuffle )
+    [let* | new-live-outputs [ inputs outputs filter-corresponding make-values ]
+            live-outputs [ outputs filter-live ] |
+        new-live-outputs
+        live-outputs
+        live-outputs
+        new-live-outputs
+        drop-values
+    ] ;
+
+: drop-call-recursive-outputs ( node -- #shuffle )
+    dup [ label>> return>> in-d>> ] [ out-d>> ] bi
+    (drop-call-recursive-outputs)
+    [ in-d>> >>out-d drop ] keep ;
+
+M: #call-recursive remove-dead-code*
+    [ drop-call-recursive-inputs ]
+    [ ]
+    [ drop-call-recursive-outputs ]
+    tri 3array ;
+
+:: drop-recursive-inputs ( node -- shuffle )
+    [let* | shuffle [ node [ in-d>> ] [ label>> enter-out>> ] bi drop-dead-inputs ]
+            new-outputs [ shuffle out-d>> ] |
+        node new-outputs
+        [ [ label>> enter-recursive>> ] dip >>in-d drop ] [ >>in-d drop ] 2bi
+        shuffle
+    ] ;
+
+:: drop-recursive-outputs ( node -- shuffle )
+    [let* | return [ node label>> return>> ]
+            new-inputs [ return in-d>> filter-live ]
+            new-outputs [ return [ in-d>> ] [ out-d>> ] bi filter-corresponding ] |
+        return
+        [ new-inputs >>in-d new-outputs >>out-d drop ]
+        [ drop-dead-outputs ]
+        bi
+    ] ;
+
+M:: #recursive remove-dead-code* ( node -- nodes )
+    [let* | drop-inputs [ node drop-recursive-inputs ]
+            drop-outputs [ node drop-recursive-outputs ] |
+         node [ (remove-dead-code) ] change-child drop
+         node label>> [ filter-live ] change-enter-out drop
+         drop-inputs node drop-outputs 3array
+    ] ;
+
+M: #return-recursive remove-dead-code* ;
diff --git a/basis/compiler/tree/dead-code/simple/simple.factor b/basis/compiler/tree/dead-code/simple/simple.factor
new file mode 100755
index 0000000000..9ebf064f79
--- /dev/null
+++ b/basis/compiler/tree/dead-code/simple/simple.factor
@@ -0,0 +1,144 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors words assocs sequences arrays namespaces
+fry locals definitions classes.algebra
+stack-checker.state
+stack-checker.backend
+compiler.tree
+compiler.tree.propagation.info
+compiler.tree.dead-code.liveness ;
+IN: compiler.tree.dead-code.simple
+
+: flushable? ( word -- ? )
+    [ "flushable" word-prop ] [ "predicating" word-prop ] bi or ;
+
+: flushable-call? ( #call -- ? )
+    dup word>> dup flushable? [
+        "input-classes" word-prop dup [
+            [ node-input-infos ] dip
+            [ [ class>> ] dip class<= ] 2all?
+        ] [ 2drop t ] if
+    ] [ 2drop f ] if ;
+
+M: #call mark-live-values*
+    dup flushable-call? [ drop ] [ look-at-inputs ] if ;
+
+M: #alien-invoke mark-live-values* look-at-inputs ;
+
+M: #alien-indirect mark-live-values* look-at-inputs ;
+
+M: #return mark-live-values* look-at-inputs ;
+
+: look-at-mapping ( value inputs outputs -- )
+    [ index ] dip over [ nth look-at-value ] [ 2drop ] if ;
+
+M: #copy compute-live-values*
+    #! If the output of a copy is live, then the corresponding
+    #! input is live also.
+    [ out-d>> ] [ in-d>> ] bi look-at-mapping ;
+
+M: #call compute-live-values* nip look-at-inputs ;
+
+M: #>r compute-live-values*
+    [ out-r>> ] [ in-d>> ] bi look-at-mapping ;
+
+M: #r> compute-live-values*
+    [ out-d>> ] [ in-r>> ] bi look-at-mapping ;
+
+M: #shuffle compute-live-values*
+    mapping>> at look-at-value ;
+
+M: #alien-invoke compute-live-values* nip look-at-inputs ;
+
+M: #alien-indirect compute-live-values* nip look-at-inputs ;
+
+: filter-mapping ( assoc -- assoc' )
+    live-values get '[ drop , key? ] assoc-filter ;
+
+: filter-corresponding ( new old -- old' )
+    #! Remove elements from 'old' if the element with the same
+    #! index in 'new' is dead.
+    zip filter-mapping values ;
+
+: filter-live ( values -- values' )
+    [ live-value? ] filter ;
+
+:: drop-values ( inputs outputs mapping-keys mapping-values -- #shuffle )
+    inputs
+    outputs
+    outputs
+    mapping-keys
+    mapping-values
+    filter-corresponding zip #shuffle ; inline
+
+:: drop-dead-values ( outputs -- #shuffle )
+    [let* | new-outputs [ outputs make-values ]
+            live-outputs [ outputs filter-live ] |
+        new-outputs
+        live-outputs
+        outputs
+        new-outputs
+        drop-values
+    ] ;
+
+: drop-dead-outputs ( node -- #shuffle )
+    dup out-d>> drop-dead-values tuck in-d>> >>out-d drop ;
+
+: some-outputs-dead? ( #call -- ? )
+    out-d>> [ live-value? not ] contains? ;
+
+: maybe-drop-dead-outputs ( node -- nodes )
+    dup some-outputs-dead? [
+        dup drop-dead-outputs 2array
+    ] when ;
+
+M: #introduce remove-dead-code* ( #introduce -- nodes )
+    maybe-drop-dead-outputs ;
+
+M: #>r remove-dead-code*
+    [ filter-live ] change-out-r
+    [ filter-live ] change-in-d
+    dup in-d>> empty? [ drop f ] when ;
+
+M: #r> remove-dead-code*
+    [ filter-live ] change-out-d
+    [ filter-live ] change-in-r
+    dup in-r>> empty? [ drop f ] when ;
+
+M: #push remove-dead-code*
+    dup out-d>> first live-value? [ drop f ] unless ;
+
+: dead-flushable-call? ( #call -- ? )
+    dup flushable-call? [
+        out-d>> [ live-value? not ] all?
+    ] [ drop f ] if ;
+
+: remove-flushable-call ( #call -- node )
+    [ word>> flushed-dependency depends-on ]
+    [ in-d>> #drop remove-dead-code* ]
+    bi ;
+
+M: #call remove-dead-code*
+    dup dead-flushable-call?
+    [ remove-flushable-call ] [ maybe-drop-dead-outputs ] if ;
+
+M: #shuffle remove-dead-code*
+    [ filter-live ] change-in-d
+    [ filter-live ] change-out-d
+    [ filter-mapping ] change-mapping
+    dup in-d>> empty? [ drop f ] when ;
+
+M: #copy remove-dead-code*
+    [ in-d>> ] [ out-d>> ] bi
+    2dup swap zip #shuffle
+    remove-dead-code* ;
+
+M: #terminate remove-dead-code*
+    [ filter-live ] change-in-d
+    [ filter-live ] change-in-r ;
+
+M: #alien-invoke remove-dead-code*
+    maybe-drop-dead-outputs ;
+
+M: #alien-indirect remove-dead-code*
+    maybe-drop-dead-outputs ;
diff --git a/basis/compiler/tree/debugger/debugger-tests.factor b/basis/compiler/tree/debugger/debugger-tests.factor
new file mode 100644
index 0000000000..eb0bbd5ce6
--- /dev/null
+++ b/basis/compiler/tree/debugger/debugger-tests.factor
@@ -0,0 +1,5 @@
+IN: compiler.tree.debugger.tests
+USING: compiler.tree.debugger tools.test ;
+
+\ optimized. must-infer
+\ optimizer-report. must-infer
diff --git a/basis/compiler/tree/debugger/debugger.factor b/basis/compiler/tree/debugger/debugger.factor
new file mode 100644
index 0000000000..db742197a5
--- /dev/null
+++ b/basis/compiler/tree/debugger/debugger.factor
@@ -0,0 +1,148 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel assocs fry match accessors namespaces effects
+sequences sequences.private quotations generic macros arrays
+prettyprint prettyprint.backend prettyprint.sections math words
+combinators io sorting hints
+compiler.tree
+compiler.tree.builder
+compiler.tree.optimizer
+compiler.tree.combinators ;
+IN: compiler.tree.debugger
+
+! A simple tool for turning tree IR into quotations and
+! printing reports, for debugging purposes.
+
+GENERIC: node>quot ( node -- )
+
+MACRO: match-choose ( alist -- )
+    [ '[ , ] ] assoc-map '[ , match-cond ] ;
+
+MATCH-VARS: ?a ?b ?c ;
+
+: pretty-shuffle ( effect -- word/f )
+    [ in>> ] [ out>> ] bi 2array {
+        { { { } { } } [ ] }
+        { { { ?a } { ?a } } [ ] }
+        { { { ?a ?b } { ?a ?b } } [ ] }
+        { { { ?a ?b ?c } { ?a ?b ?c } } [ ] }
+        { { { ?a } { } } [ drop ] }
+        { { { ?a ?b } { } } [ 2drop ] }
+        { { { ?a ?b ?c } { } } [ 3drop ] }
+        { { { ?a } { ?a ?a } } [ dup ] }
+        { { { ?a ?b } { ?a ?b ?a ?b } } [ 2dup ] }
+        { { { ?a ?b ?c } { ?a ?b ?c ?a ?b ?c } } [ 3dup ] }
+        { { { ?a ?b } { ?a ?b ?a } } [ over ] }
+        { { { ?b ?a } { ?a ?b } } [ swap ] }
+        { { { ?b ?a ?c } { ?a ?b ?c } } [ swapd ] }
+        { { { ?a ?b } { ?a ?a ?b } } [ dupd ] }
+        { { { ?a ?b } { ?b ?a ?b } } [ tuck ] }
+        { { { ?a ?b ?c } { ?a ?b ?c ?a } } [ pick ] }
+        { { { ?a ?b ?c } { ?c ?a ?b } } [ -rot ] }
+        { { { ?a ?b ?c } { ?b ?c ?a } } [ rot ] }
+        { { { ?a ?b } { ?b } } [ nip ] }
+        { { { ?a ?b ?c } { ?c } } [ 2nip ] }
+        { _ f }
+    } match-choose ;
+
+TUPLE: shuffle-node { effect effect } ;
+
+M: shuffle-node pprint* effect>> effect>string text ;
+ 
+M: #shuffle node>quot
+    shuffle-effect dup pretty-shuffle
+    [ % ] [ shuffle-node boa , ] ?if ;
+
+M: #push node>quot literal>> , ;
+
+M: #call node>quot word>> , ;
+
+M: #call-recursive node>quot label>> id>> , ;
+
+DEFER: nodes>quot
+
+DEFER: label
+
+M: #recursive node>quot
+    [ label>> id>> literalize , ]
+    [ child>> nodes>quot , \ label , ]
+    bi ;
+
+M: #if node>quot
+    children>> [ nodes>quot ] map % \ if , ;
+
+M: #dispatch node>quot
+    children>> [ nodes>quot ] map , \ dispatch , ;
+
+M: #>r node>quot
+    [ in-d>> length ] [ out-r>> empty? \ drop \ >r ? ] bi
+    <repetition> % ;
+
+DEFER: rdrop
+
+M: #r> node>quot
+    [ in-r>> length ] [ out-d>> empty? \ rdrop \ r> ? ] bi
+    <repetition> % ;
+
+M: #alien-invoke node>quot params>> , \ #alien-invoke , ;
+
+M: #alien-indirect node>quot params>> , \ #alien-indirect , ;
+
+M: #alien-callback node>quot params>> , \ #alien-callback , ;
+
+M: node node>quot drop ;
+
+: nodes>quot ( node -- quot )
+    [ [ node>quot ] each ] [ ] make ;
+
+: optimized. ( quot/word -- )
+    dup word? [ specialized-def ] when
+    build-tree optimize-tree nodes>quot . ;
+
+SYMBOL: words-called
+SYMBOL: generics-called
+SYMBOL: methods-called
+SYMBOL: intrinsics-called
+SYMBOL: node-count
+
+: make-report ( word/quot -- assoc )
+    [
+        dup word? [ build-tree-from-word nip ] [ build-tree ] if
+        optimize-tree
+
+        H{ } clone words-called set
+        H{ } clone generics-called set
+        H{ } clone methods-called set
+        H{ } clone intrinsics-called set
+
+        0 swap [
+            >r 1+ r>
+            dup #call? [
+                word>> {
+                    { [ dup "intrinsics" word-prop over "if-intrinsics" word-prop or ] [ intrinsics-called ] }
+                    { [ dup generic? ] [ generics-called ] }
+                    { [ dup method-body? ] [ methods-called ] }
+                    [ words-called ]
+                } cond 1 -rot get at+
+            ] [ drop ] if
+        ] each-node
+        node-count set
+    ] H{ } make-assoc ;
+
+: report. ( report -- )
+    [
+        "==== Total number of IR nodes:" print
+        node-count get .
+
+        {
+            { generics-called "==== Generic word calls:" }
+            { words-called "==== Ordinary word calls:" }
+            { methods-called "==== Non-inlined method calls:" }
+            { intrinsics-called "==== Open-coded intrinsic calls:" }
+        } [
+            nl print get keys natural-sort stack.
+        ] assoc-each
+    ] bind ;
+
+: optimizer-report. ( word -- )
+    make-report report. ;
diff --git a/core/inference/backend/authors.txt b/basis/compiler/tree/def-use/authors.txt
similarity index 100%
rename from core/inference/backend/authors.txt
rename to basis/compiler/tree/def-use/authors.txt
diff --git a/basis/compiler/tree/def-use/def-use-tests.factor b/basis/compiler/tree/def-use/def-use-tests.factor
new file mode 100755
index 0000000000..993627eb15
--- /dev/null
+++ b/basis/compiler/tree/def-use/def-use-tests.factor
@@ -0,0 +1,52 @@
+USING: accessors namespaces assocs kernel sequences math
+tools.test words sets combinators.short-circuit
+stack-checker.state compiler.tree compiler.tree.builder
+compiler.tree.normalization compiler.tree.propagation
+compiler.tree.cleanup compiler.tree.def-use arrays kernel.private
+sorting math.order binary-search compiler.tree.checker ;
+IN: compiler.tree.def-use.tests
+
+\ compute-def-use must-infer
+
+[ t ] [
+    [ 1 2 3 ] build-tree compute-def-use drop
+    def-use get {
+        [ assoc-size 3 = ]
+        [ values [ uses>> [ #return? ] all? ] all? ]
+    } 1&&
+] unit-test
+
+: test-def-use ( quot -- )
+    build-tree
+    normalize
+    propagate
+    cleanup
+    compute-def-use
+    check-nodes ;
+
+: too-deep ( a b -- c )
+    dup [ drop ] [ 2dup too-deep too-deep drop ] if ; inline recursive
+
+[ ] [ [ too-deep ] build-tree normalize compute-def-use check-nodes ] unit-test
+
+! compute-def-use checks for SSA violations, so we use that to
+! ensure we generate some common patterns correctly.
+{
+    [ [ drop ] each-integer ]
+    [ [ 2drop ] curry each-integer ]
+    [ [ 1 ] [ 2 ] if drop ]
+    [ [ 1 ] [ dup ] if ]
+    [ [ 1 ] [ dup ] if drop ]
+    [ { array } declare swap ]
+    [ [ ] curry call ]
+    [ [ 1 ] [ 2 ] compose call + ]
+    [ [ 1 ] 2 [ + ] curry compose call + ]
+    [ [ 1 ] [ call 2 ] curry call + ]
+    [ [ 1 ] [ 2 ] compose swap [ 1 ] [ 2 ] if + * ]
+    [ dup slice? [ dup array? [ ] [ ] if ] [ ] if ]
+    [ dup [ drop f ] [ "A" throw ] if ]
+    [ [ <=> ] sort ]
+    [ [ <=> ] with search ]
+} [
+    [ ] swap [ test-def-use ] curry unit-test
+] each
diff --git a/basis/compiler/tree/def-use/def-use.factor b/basis/compiler/tree/def-use/def-use.factor
new file mode 100755
index 0000000000..2379f3918d
--- /dev/null
+++ b/basis/compiler/tree/def-use/def-use.factor
@@ -0,0 +1,65 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays namespaces assocs sequences kernel generic assocs
+classes vectors accessors combinators sets
+stack-checker.state
+stack-checker.branches
+compiler.tree
+compiler.tree.combinators ;
+IN: compiler.tree.def-use
+
+SYMBOL: def-use
+
+TUPLE: definition value node uses ;
+
+: <definition> ( node value -- definition )
+    definition new
+        swap >>value
+        swap >>node
+        V{ } clone >>uses ;
+
+: def-of ( value -- definition )
+    def-use get at* [ "No def" throw ] unless ;
+
+: def-value ( node value -- )
+    def-use get 2dup key? [
+        "Multiple defs" throw
+    ] [
+        [ [ <definition> ] keep ] dip set-at
+    ] if ;
+
+: used-by ( value -- nodes ) def-of uses>> ;
+
+: use-value ( node value -- ) used-by push ;
+
+: defined-by ( value -- node ) def-of node>> ;
+
+GENERIC: node-uses-values ( node -- values )
+
+M: #introduce node-uses-values drop f ;
+M: #push node-uses-values drop f ;
+M: #r> node-uses-values in-r>> ;
+M: #phi node-uses-values phi-in-d>> concat remove-bottom prune ;
+M: #declare node-uses-values declaration>> keys ;
+M: #terminate node-uses-values [ in-d>> ] [ in-r>> ] bi append ;
+M: #alien-callback node-uses-values drop f ;
+M: node node-uses-values in-d>> ;
+
+GENERIC: node-defs-values ( node -- values )
+
+M: #>r node-defs-values out-r>> ;
+M: #branch node-defs-values drop f ;
+M: #declare node-defs-values drop f ;
+M: #return node-defs-values drop f ;
+M: #recursive node-defs-values drop f ;
+M: #terminate node-defs-values drop f ;
+M: #alien-callback node-defs-values drop f ;
+M: node node-defs-values out-d>> ;
+
+: node-def-use ( node -- )
+    [ dup node-uses-values [ use-value ] with each ]
+    [ dup node-defs-values [ def-value ] with each ] bi ;
+
+: compute-def-use ( node -- node )
+    H{ } clone def-use set
+    dup [ node-def-use ] each-node ;
diff --git a/basis/compiler/tree/def-use/summary.txt b/basis/compiler/tree/def-use/summary.txt
new file mode 100644
index 0000000000..fd7c5979ae
--- /dev/null
+++ b/basis/compiler/tree/def-use/summary.txt
@@ -0,0 +1 @@
+Def/use chain construction
diff --git a/basis/compiler/tree/escape-analysis/allocations/allocations.factor b/basis/compiler/tree/escape-analysis/allocations/allocations.factor
new file mode 100644
index 0000000000..4c197d7fc0
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/allocations/allocations.factor
@@ -0,0 +1,132 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs namespaces sequences kernel math
+combinators sets disjoint-sets fry stack-checker.state ;
+IN: compiler.tree.escape-analysis.allocations
+
+! A map from values to one of the following:
+! - f -- initial status, assigned to values we have not seen yet;
+!        may potentially become an allocation later
+! - a sequence of values -- potentially unboxed tuple allocations
+! - t -- not allocated in this procedure, can never be unboxed
+SYMBOL: allocations
+
+: (allocation) ( value -- value' allocations )
+    allocations get ; inline
+
+: allocation ( value -- allocation )
+    (allocation) at ;
+
+: record-allocation ( allocation value -- )
+    (allocation) set-at ;
+
+: record-allocations ( allocations values -- )
+    [ record-allocation ] 2each ;
+
+! We track slot access to connect constructor inputs with
+! accessor outputs.
+SYMBOL: slot-accesses
+
+TUPLE: slot-access slot# value ;
+
+C: <slot-access> slot-access
+
+: record-slot-access ( out slot# in -- )
+    <slot-access> swap slot-accesses get set-at ;
+
+! We track escaping values with a disjoint set.
+SYMBOL: escaping-values
+
+SYMBOL: +escaping+
+
+: <escaping-values> ( -- disjoint-set )
+    <disjoint-set> +escaping+ over add-atom ;
+
+: init-escaping-values ( -- )
+    <escaping-values> escaping-values set ;
+
+: introduce-value ( values -- )
+    escaping-values get
+    2dup disjoint-set-member?
+    [ 2drop ] [ add-atom ] if ;
+
+: introduce-values ( values -- )
+    [ introduce-value ] each ;
+
+: <slot-value> ( -- value )
+    <value> dup introduce-value ;
+
+: merge-values ( in-values out-value -- )
+    escaping-values get equate-all-with ;
+
+: merge-slots ( values -- value )
+    <slot-value> [ merge-values ] keep ;
+
+: equate-values ( value1 value2 -- )
+    escaping-values get equate ;
+
+: add-escaping-value ( value -- )
+    [
+        allocation {
+            { [ dup not ] [ drop ] }
+            { [ dup t eq? ] [ drop ] }
+            [ [ add-escaping-value ] each ]
+        } cond
+    ]
+    [ +escaping+ equate-values ] bi ;
+
+: add-escaping-values ( values -- )
+    [ add-escaping-value ] each ;
+
+: unknown-allocation ( value -- )
+    [ add-escaping-value ]
+    [ t swap record-allocation ]
+    bi ;
+
+: unknown-allocations ( values -- )
+    [ unknown-allocation ] each ;
+
+: escaping-value? ( value -- ? )
+    +escaping+ escaping-values get equiv? ;
+
+DEFER: copy-value
+
+: copy-allocation ( allocation -- allocation' )
+    {
+        { [ dup not ] [ ] }
+        { [ dup t eq? ] [ ] }
+        [ [ <value> [ introduce-value ] [ copy-value ] [ ] tri ] map ]
+    } cond ;
+
+: copy-value ( from to -- )
+    [ equate-values ]
+    [ [ allocation copy-allocation ] dip record-allocation ]
+    2bi ;
+
+: copy-values ( from to -- )
+    [ copy-value ] 2each ;
+
+: copy-slot-value ( out slot# in -- )
+    allocation {
+        { [ dup not ] [ 3drop ] }
+        { [ dup t eq? ] [ 3drop ] }
+        [ nth swap copy-value ]
+    } cond ;
+
+! Compute which tuples escape
+SYMBOL: escaping-allocations
+
+: compute-escaping-allocations ( -- )
+    allocations get
+    [ drop escaping-value? ] assoc-filter
+    escaping-allocations set ;
+
+: escaping-allocation? ( value -- ? )
+    escaping-allocations get key? ;
+
+: unboxed-allocation ( value -- allocation/f )
+    dup escaping-allocation? [ drop f ] [ allocation ] if ;
+
+: unboxed-slot-access? ( value -- ? )
+    slot-accesses get at*
+    [ value>> unboxed-allocation >boolean ] when ;
diff --git a/basis/compiler/tree/escape-analysis/branches/branches.factor b/basis/compiler/tree/escape-analysis/branches/branches.factor
new file mode 100644
index 0000000000..b728e9a1ba
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/branches/branches.factor
@@ -0,0 +1,36 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel namespaces sequences sets fry columns
+stack-checker.branches
+compiler.tree
+compiler.tree.propagation.branches
+compiler.tree.escape-analysis.nodes
+compiler.tree.escape-analysis.allocations ;
+IN: compiler.tree.escape-analysis.branches
+
+M: #branch escape-analysis*
+    [ in-d>> add-escaping-values ]
+    [ live-children sift [ (escape-analysis) ] each ]
+    bi ;
+
+: (merge-allocations) ( values -- allocation )
+    [
+        dup [ allocation ] map sift [ drop f ] [
+            dup [ t eq? not ] all? [
+                dup [ length ] map all-equal? [
+                    nip flip
+                    [ (merge-allocations) ] [ [ merge-slots ] map ] bi
+                    [ record-allocations ] keep
+                ] [ drop add-escaping-values t ] if
+            ] [ drop add-escaping-values t ] if
+        ] if-empty
+    ] map ;
+
+: merge-allocations ( in-values out-values -- )
+    [ [ remove-bottom ] map ] dip
+    [ [ merge-values ] 2each ]
+    [ [ (merge-allocations) ] dip record-allocations ]
+    2bi ;
+
+M: #phi escape-analysis*
+    [ phi-in-d>> <flipped> ] [ out-d>> ] bi merge-allocations ;
diff --git a/basis/compiler/tree/escape-analysis/escape-analysis-tests.factor b/basis/compiler/tree/escape-analysis/escape-analysis-tests.factor
new file mode 100644
index 0000000000..f51046c6cb
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/escape-analysis-tests.factor
@@ -0,0 +1,322 @@
+IN: compiler.tree.escape-analysis.tests
+USING: compiler.tree.escape-analysis
+compiler.tree.escape-analysis.allocations compiler.tree.builder
+compiler.tree.normalization math.functions
+compiler.tree.propagation compiler.tree.cleanup
+compiler.tree.combinators compiler.tree sequences math math.private
+kernel tools.test accessors slots.private quotations.private
+prettyprint classes.tuple.private classes classes.tuple
+compiler.intrinsics namespaces compiler.tree.propagation.info
+stack-checker.errors kernel.private ;
+
+\ escape-analysis must-infer
+
+GENERIC: count-unboxed-allocations* ( m node -- n )
+
+: (count-unboxed-allocations) ( m node -- n )
+    out-d>> first escaping-allocation? [ 1+ ] unless ;
+
+M: #call count-unboxed-allocations*
+    dup [ immutable-tuple-boa? ] [ word>> \ <complex> eq? ] bi or
+    [ (count-unboxed-allocations) ] [ drop ] if ;
+
+M: #push count-unboxed-allocations*
+    dup literal>> class immutable-tuple-class?
+    [ (count-unboxed-allocations) ] [ drop ] if ;
+
+M: node count-unboxed-allocations* drop ;
+
+: count-unboxed-allocations ( quot -- sizes )
+    build-tree
+    normalize
+    propagate
+    cleanup
+    escape-analysis
+    0 swap [ count-unboxed-allocations* ] each-node ;
+
+[ 0 ] [ [ [ + ] curry ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ [ + ] curry drop ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ [ + ] curry 3 slot ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ [ + ] curry 3 slot drop ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ [ + ] curry uncurry ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ [ + ] curry call ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ [ + ] curry call ] count-unboxed-allocations ] unit-test
+
+[ 0 ] [ [ [ [ + ] curry ] [ drop [ ] ] if ] count-unboxed-allocations ] unit-test
+
+[ 2 ] [
+    [ [ [ + ] curry ] [ [ * ] curry ] if uncurry ] count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [ [ [ + ] curry ] [ [ * ] curry ] if ] count-unboxed-allocations
+] unit-test
+
+[ 3 ] [
+    [ [ [ + ] curry ] [ dup [ [ * ] curry ] [ [ / ] curry ] if ] if uncurry ] count-unboxed-allocations
+] unit-test
+
+[ 2 ] [
+    [ [ [ + ] curry 4 ] [ dup [ [ * ] curry ] [ [ / ] curry ] if uncurry ] if ] count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [ [ [ + ] curry ] [ dup [ [ * ] curry ] [ [ / ] curry ] if ] if ] count-unboxed-allocations
+] unit-test
+
+TUPLE: cons { car read-only } { cdr read-only } ;
+
+[ 0 ] [
+    [
+        dup 0 = [
+            2 cons boa
+        ] [
+            dup 1 = [
+                3 cons boa
+            ] when
+        ] if car>>
+    ] count-unboxed-allocations
+] unit-test
+
+[ 3 ] [
+    [
+        dup 0 = [
+            2 cons boa
+        ] [
+            dup 1 = [
+                3 cons boa
+            ] [
+                4 cons boa
+            ] if
+        ] if car>>
+    ] count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [
+        dup 0 = [
+            dup 1 = [
+                3 cons boa
+            ] [
+                4 cons boa
+            ] if
+        ] unless car>>
+    ] count-unboxed-allocations
+] unit-test
+
+[ 2 ] [
+    [
+        dup 0 = [
+            2 cons boa
+        ] [
+            dup 1 = [
+                3 cons boa
+            ] [
+                4 cons boa
+            ] if car>>
+        ] if
+    ] count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [
+        dup 0 = [
+            2 cons boa
+        ] [
+            dup 1 = [
+                3 cons boa dup .
+            ] [
+                4 cons boa
+            ] if
+        ] if drop
+    ] count-unboxed-allocations
+] unit-test
+
+[ 2 ] [
+    [
+        [ dup cons boa ] [ drop 1 2 cons boa ] if car>>
+    ] count-unboxed-allocations
+] unit-test
+
+[ 2 ] [
+    [
+        3dup
+        [ cons boa ] [ cons boa 3 cons boa ] if
+        [ car>> ] [ cdr>> ] bi
+    ] count-unboxed-allocations
+] unit-test
+
+[ 2 ] [
+    [
+        3dup [ cons boa ] [ cons boa . 1 2 cons boa ] if
+        [ car>> ] [ cdr>> ] bi
+    ] count-unboxed-allocations
+] unit-test
+
+[ 1 ] [
+    [ [ 3 cons boa ] [ "A" throw ] if car>> ]
+    count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [ 10 [ drop ] each-integer ] count-unboxed-allocations
+] unit-test
+
+[ 2 ] [
+    [
+        1 2 cons boa 10 [ 2drop 1 2 cons boa ] each-integer car>>
+    ] count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [
+        1 2 cons boa 10 [ drop 2 cons boa ] each-integer car>>
+    ] count-unboxed-allocations
+] unit-test
+
+: infinite-cons-loop ( a -- b ) 2 cons boa infinite-cons-loop ; inline recursive
+
+[ 0 ] [
+    [
+        1 2 cons boa infinite-cons-loop
+    ] count-unboxed-allocations
+] unit-test
+
+TUPLE: rw-box i ;
+
+C: <rw-box> rw-box
+
+[ 0 ] [ [ <rw-box> i>> ] count-unboxed-allocations ] unit-test
+
+: fake-fib ( m -- n )
+    dup i>> 1 <= [ drop 1 <rw-box> ] when ; inline recursive
+
+[ 0 ] [ [ <rw-box> fake-fib i>> ] count-unboxed-allocations ] unit-test
+
+TUPLE: ro-box { i read-only } ;
+
+C: <ro-box> ro-box
+
+: tuple-fib ( m -- n )
+    dup i>> 1 <= [
+        drop 1 <ro-box>
+    ] [
+        i>> 1- <ro-box>
+        dup tuple-fib
+        swap
+        i>> 1- <ro-box>
+        tuple-fib
+        swap i>> swap i>> + <ro-box>
+    ] if ; inline recursive
+
+[ 5 ] [ [ <ro-box> tuple-fib i>> ] count-unboxed-allocations ] unit-test
+
+[ 3 ] [ [ <ro-box> tuple-fib ] count-unboxed-allocations ] unit-test
+
+: tuple-fib' ( m -- n )
+    dup 1 <= [ 1- tuple-fib' i>> ] when <ro-box> ; inline recursive
+
+[ 0 ] [ [ tuple-fib' ] count-unboxed-allocations ] unit-test
+
+: bad-tuple-fib-1 ( m -- n )
+    dup i>> 1 <= [
+        drop 1 <ro-box>
+    ] [
+        i>> 1- <ro-box>
+        dup bad-tuple-fib-1
+        swap
+        i>> 1- <ro-box>
+        bad-tuple-fib-1 dup .
+        swap i>> swap i>> + <ro-box>
+    ] if ; inline recursive
+
+[ 3 ] [ [ <ro-box> bad-tuple-fib-1 i>> ] count-unboxed-allocations ] unit-test
+
+: bad-tuple-fib-2 ( m -- n )
+    dup .
+    dup i>> 1 <= [
+        drop 1 <ro-box>
+    ] [
+        i>> 1- <ro-box>
+        dup bad-tuple-fib-2
+        swap
+        i>> 1- <ro-box>
+        bad-tuple-fib-2
+        swap i>> swap i>> + <ro-box>
+    ] if ; inline recursive
+
+[ 2 ] [ [ <ro-box> bad-tuple-fib-2 i>> ] count-unboxed-allocations ] unit-test
+
+: tuple-fib-2 ( m -- n )
+    dup 1 <= [
+        drop 1 <ro-box>
+    ] [
+        1- dup tuple-fib-2
+        swap
+        1- tuple-fib-2
+        swap i>> swap i>> + <ro-box>
+    ] if ; inline recursive
+
+[ 2 ] [ [ tuple-fib-2 i>> ] count-unboxed-allocations ] unit-test
+
+: tuple-fib-3 ( m -- n )
+    dup 1 <= [
+        drop 1 <ro-box>
+    ] [
+        1- dup tuple-fib-3
+        swap
+        1- tuple-fib-3 dup .
+        swap i>> swap i>> + <ro-box>
+    ] if ; inline recursive
+
+[ 0 ] [ [ tuple-fib-3 i>> ] count-unboxed-allocations ] unit-test
+
+: bad-tuple-fib-3 ( m -- n )
+    dup 1 <= [
+        drop 1 <ro-box>
+    ] [
+        1- dup bad-tuple-fib-3
+        swap
+        1- bad-tuple-fib-3
+        2drop f
+    ] if ; inline recursive
+
+[ 0 ] [ [ bad-tuple-fib-3 i>> ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ <complex> >rect ] count-unboxed-allocations ] unit-test
+
+[ 0 ] [ [ 1 cons boa 2 cons boa ] count-unboxed-allocations ] unit-test
+
+[ 1 ] [ [ 1 cons boa 2 cons boa car>> ] count-unboxed-allocations ] unit-test
+
+[ 0 ] [ [ 1 cons boa 2 cons boa dup . car>> ] count-unboxed-allocations ] unit-test
+
+[ 0 ] [ [ 1 cons boa "x" get slot ] count-unboxed-allocations ] unit-test
+
+: impeach-node ( quot: ( node -- ) -- )
+    dup slip impeach-node ; inline recursive
+
+: bleach-node ( quot: ( node -- ) -- )
+    [ bleach-node ] curry [ ] compose impeach-node ; inline recursive
+
+[ 2 ] [ [ [ ] bleach-node ] count-unboxed-allocations ] unit-test
+
+[ 0 ] [
+    [ dup -1 over >= [ 0 >= [ "A" throw ] unless ] [ drop ] if ]
+    count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [ \ too-many->r boa f f \ inference-error boa ]
+    count-unboxed-allocations
+] unit-test
+
+[ 0 ] [
+    [ { null } declare [ 1 ] [ 2 ] if ] count-unboxed-allocations
+] unit-test
diff --git a/basis/compiler/tree/escape-analysis/escape-analysis.factor b/basis/compiler/tree/escape-analysis/escape-analysis.factor
new file mode 100644
index 0000000000..82e41d7b49
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/escape-analysis.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel namespaces assocs fry sequences
+compiler.tree
+compiler.tree.escape-analysis.allocations
+compiler.tree.escape-analysis.recursive
+compiler.tree.escape-analysis.branches
+compiler.tree.escape-analysis.nodes
+compiler.tree.escape-analysis.simple ;
+IN: compiler.tree.escape-analysis
+
+! This pass must run after propagation
+
+: escape-analysis ( node -- node )
+    init-escaping-values
+    H{ } clone allocations set
+    H{ } clone slot-accesses set
+    dup (escape-analysis)
+    compute-escaping-allocations ;
diff --git a/basis/compiler/tree/escape-analysis/nodes/nodes.factor b/basis/compiler/tree/escape-analysis/nodes/nodes.factor
new file mode 100644
index 0000000000..3fdde22bd8
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/nodes/nodes.factor
@@ -0,0 +1,16 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences
+compiler.tree
+compiler.tree.def-use
+compiler.tree.escape-analysis.allocations ;
+IN: compiler.tree.escape-analysis.nodes
+
+GENERIC: escape-analysis* ( node -- )
+
+: (escape-analysis) ( node -- )
+    [
+        [ node-defs-values introduce-values ]
+        [ escape-analysis* ]
+        bi
+    ] each ;
diff --git a/basis/compiler/tree/escape-analysis/recursive/recursive-tests.factor b/basis/compiler/tree/escape-analysis/recursive/recursive-tests.factor
new file mode 100644
index 0000000000..033d5b01cc
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/recursive/recursive-tests.factor
@@ -0,0 +1,15 @@
+IN: compiler.tree.escape-analysis.recursive.tests
+USING: kernel tools.test namespaces sequences
+compiler.tree.escape-analysis.recursive
+compiler.tree.escape-analysis.allocations ;
+
+H{ } clone allocations set
+<escaping-values> escaping-values set
+
+[ ] [ 8 [ introduce-value ] each ] unit-test
+
+[ ] [ { 1 2 } 3 record-allocation ] unit-test
+
+[ t ] [ { 1 2 } { 6 7 } congruent? ] unit-test
+[ f ] [ { 3 4 } { 6 7 } congruent? ] unit-test
+[ f ] [ { 3 4 5 } { 6 7 } congruent? ] unit-test
diff --git a/basis/compiler/tree/escape-analysis/recursive/recursive.factor b/basis/compiler/tree/escape-analysis/recursive/recursive.factor
new file mode 100644
index 0000000000..059ac1de02
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/recursive/recursive.factor
@@ -0,0 +1,71 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences math combinators accessors namespaces
+fry disjoint-sets
+compiler.tree
+compiler.tree.combinators
+compiler.tree.escape-analysis.nodes
+compiler.tree.escape-analysis.branches
+compiler.tree.escape-analysis.allocations ;
+IN: compiler.tree.escape-analysis.recursive
+
+: congruent? ( alloc1 alloc2 -- ? )
+    {
+        { [ 2dup [ f eq? ] either? ] [ eq? ] }
+        { [ 2dup [ t eq? ] either? ] [ eq? ] }
+        { [ 2dup [ length ] bi@ = not ] [ 2drop f ] }
+        [ [ [ allocation ] bi@ congruent? ] 2all? ]
+    } cond ;
+
+: check-fixed-point ( node alloc1 alloc2 -- )
+    [ congruent? ] 2all? [ drop ] [ label>> f >>fixed-point drop ] if ;
+
+: node-input-allocations ( node -- allocations )
+    in-d>> [ allocation ] map ;
+
+: node-output-allocations ( node -- allocations )
+    out-d>> [ allocation ] map ;
+
+: recursive-stacks ( #enter-recursive -- stacks )
+    recursive-phi-in
+    escaping-values get '[ [ , disjoint-set-member? ] all? ] filter
+    flip ;
+
+: analyze-recursive-phi ( #enter-recursive -- )
+    [ ] [ recursive-stacks ] [ out-d>> ] tri
+    [ [ merge-values ] 2each ]
+    [
+        [ (merge-allocations) ] dip
+        [ [ allocation ] map check-fixed-point ]
+        [ record-allocations ]
+        2bi
+    ] 2bi ;
+
+M: #recursive escape-analysis* ( #recursive -- )
+    [ label>> return>> in-d>> introduce-values ]
+    [
+        [
+            child>>
+            [ first out-d>> introduce-values ]
+            [ first analyze-recursive-phi ]
+            [ (escape-analysis) ]
+            tri
+        ] until-fixed-point
+    ] bi ;
+
+M: #enter-recursive escape-analysis* ( #enter-recursive -- )
+    #! Handled by #recursive
+    drop ;
+
+M: #call-recursive escape-analysis* ( #call-label -- )
+    [ ] [ label>> return>> ] [ node-output-allocations ] tri
+    [ [ node-input-allocations ] dip check-fixed-point ]
+    [ drop swap [ in-d>> ] [ out-d>> ] bi* copy-values ]
+    3bi ;
+
+M: #return-recursive escape-analysis* ( #return-recursive -- )
+    [ call-next-method ]
+    [
+        [ in-d>> ] [ label>> calls>> ] bi
+        [ out-d>> escaping-values get '[ , equate ] 2each ] with each
+    ] bi ;
diff --git a/basis/compiler/tree/escape-analysis/simple/simple.factor b/basis/compiler/tree/escape-analysis/simple/simple.factor
new file mode 100644
index 0000000000..0324b31199
--- /dev/null
+++ b/basis/compiler/tree/escape-analysis/simple/simple.factor
@@ -0,0 +1,93 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors sequences classes.tuple
+classes.tuple.private arrays math math.private slots.private
+combinators deques search-deques namespaces fry classes
+classes.algebra stack-checker.state
+compiler.intrinsics
+compiler.tree
+compiler.tree.propagation.info
+compiler.tree.escape-analysis.nodes
+compiler.tree.escape-analysis.allocations ;
+IN: compiler.tree.escape-analysis.simple
+
+M: #terminate escape-analysis* drop ;
+
+M: #renaming escape-analysis* inputs/outputs copy-values ;
+
+M: #introduce escape-analysis* out-d>> unknown-allocations ;
+
+DEFER: record-literal-allocation
+
+: make-literal-slots ( seq -- values )
+    [ <slot-value> [ swap record-literal-allocation ] keep ] map ;
+
+: object-slots ( object -- slots/f )
+    {
+        { [ dup class immutable-tuple-class? ] [ tuple-slots ] }
+        { [ dup complex? ] [ [ real-part ] [ imaginary-part ] bi 2array ] }
+        [ drop f ]
+    } cond ;
+
+: record-literal-allocation ( value object -- )
+    object-slots
+    [ make-literal-slots swap record-allocation ]
+    [ unknown-allocation ]
+    if* ;
+
+M: #push escape-analysis*
+    [ out-d>> first ] [ literal>> ] bi record-literal-allocation ;
+
+: record-unknown-allocation ( #call -- )
+    [ in-d>> add-escaping-values ]
+    [ out-d>> unknown-allocations ] bi ;
+
+: record-tuple-allocation ( #call -- )
+    dup immutable-tuple-boa?
+    [ [ in-d>> but-last ] [ out-d>> first ] bi record-allocation ]
+    [ record-unknown-allocation ]
+    if ;
+
+: record-complex-allocation ( #call -- )
+    [ in-d>> ] [ out-d>> first ] bi record-allocation ;
+
+: slot-offset ( #call -- n/f )
+    dup in-d>>
+    [ first node-value-info class>> ]
+    [ second node-value-info literal>> ] 2bi
+    dup fixnum? [
+        {
+            { [ over tuple class<= ] [ 2 - ] }
+            { [ over complex class<= ] [ 1 - ] }
+            [ drop f ]
+        } cond nip
+    ] [ 2drop f ] if ;
+
+: record-slot-call ( #call -- )
+    [ out-d>> first ] [ slot-offset ] [ in-d>> first ] tri over
+    [ [ record-slot-access ] [ copy-slot-value ] 3bi ]
+    [ [ unknown-allocation ] [ drop ] [ add-escaping-value ] tri* ]
+    if ;
+
+M: #call escape-analysis*
+    dup word>> {
+        { \ <tuple-boa> [ record-tuple-allocation ] }
+        { \ <complex> [ record-complex-allocation ] }
+        { \ slot [ record-slot-call ] }
+        [ drop record-unknown-allocation ]
+    } case ;
+
+M: #return escape-analysis*
+    in-d>> add-escaping-values ;
+
+M: #alien-invoke escape-analysis*
+    [ in-d>> add-escaping-values ]
+    [ out-d>> unknown-allocations ]
+    bi ;
+
+M: #alien-indirect escape-analysis*
+    [ in-d>> add-escaping-values ]
+    [ out-d>> unknown-allocations ]
+    bi ;
+
+M: #alien-callback escape-analysis* drop ;
diff --git a/basis/compiler/tree/finalization/finalization.factor b/basis/compiler/tree/finalization/finalization.factor
new file mode 100644
index 0000000000..5aaeed360a
--- /dev/null
+++ b/basis/compiler/tree/finalization/finalization.factor
@@ -0,0 +1,127 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel arrays accessors sequences sequences.private words
+fry namespaces math math.order memoize classes.builtin
+classes.tuple.private slots.private combinators layouts
+byte-arrays alien.accessors
+compiler.intrinsics
+compiler.tree
+compiler.tree.builder
+compiler.tree.normalization
+compiler.tree.propagation
+compiler.tree.propagation.info
+compiler.tree.cleanup
+compiler.tree.def-use
+compiler.tree.dead-code
+compiler.tree.combinators ;
+IN: compiler.tree.finalization
+
+! This pass runs after propagation, so that it can expand
+! built-in type predicates and memory allocation; these cannot
+! be expanded before propagation since we need to see 'fixnum?'
+! instead of 'tag 0 eq?' and so on, for semantic reasoning.
+! We also delete empty stack shuffles and copies to facilitate
+! tail call optimization in the code generator. After this pass
+! runs, stack flow information is no longer accurate, since we
+! punt in 'splice-quot' and don't update everything that we
+! should; this simplifies the code, improves performance, and we
+! don't need the stack flow information after this pass anyway.
+
+GENERIC: finalize* ( node -- nodes )
+
+M: #copy finalize* drop f ;
+
+M: #shuffle finalize*
+    dup shuffle-effect
+    [ in>> ] [ out>> ] bi sequence=
+    [ drop f ] when ;
+
+: splice-quot ( quot -- nodes )
+    [
+        build-tree
+        normalize
+        propagate
+        cleanup
+        compute-def-use
+        remove-dead-code
+        but-last
+    ] with-scope ;
+
+: builtin-predicate? ( #call -- ? )
+    word>> "predicating" word-prop builtin-class? ;
+
+MEMO: builtin-predicate-expansion ( word -- nodes )
+    def>> splice-quot ;
+
+: expand-builtin-predicate ( #call -- nodes )
+    word>> builtin-predicate-expansion ;
+
+: first-literal ( #call -- obj ) node-input-infos first literal>> ;
+
+: last-literal ( #call -- obj ) node-input-infos peek literal>> ;
+
+: expand-tuple-boa? ( #call -- ? )
+    dup word>> \ <tuple-boa> eq? [
+        last-literal tuple-layout?
+    ] [ drop f ] if ;
+
+MEMO: (tuple-boa-expansion) ( n -- quot )
+    [
+        [ 2 + ] map <reversed>
+        [ '[ [ , set-slot ] keep ] % ] each
+    ] [ ] make ;
+
+: tuple-boa-expansion ( layout -- quot )
+    #! No memoization here since otherwise we'd hang on to
+    #! tuple layout objects.
+    size>> (tuple-boa-expansion) \ (tuple) prefix splice-quot ;
+
+: expand-tuple-boa ( #call -- node )
+    last-literal tuple-boa-expansion ;
+
+MEMO: <array>-expansion ( n -- quot )
+    [
+        [ swap (array) ] %
+        [ \ 2dup , , [ swap set-array-nth ] % ] each
+        \ nip ,
+    ] [ ] make splice-quot ;
+
+: expand-<array>? ( #call -- ? )
+    dup word>> \ <array> eq? [
+        first-literal dup integer?
+        [ 0 32 between? ] [ drop f ] if
+    ] [ drop f ] if ;
+
+: expand-<array> ( #call -- node )
+    first-literal <array>-expansion ;
+
+: bytes>cells ( m -- n ) cell align cell /i ;
+
+MEMO: <byte-array>-expansion ( n -- quot )
+    [
+        [ (byte-array) ] %
+        bytes>cells [ cell * ] map
+        [ [ 0 over ] % , [ set-alien-unsigned-cell ] % ] each
+    ] [ ] make splice-quot ;
+
+: expand-<byte-array>? ( #call -- ? )
+    dup word>> \ <byte-array> eq? [
+        first-literal dup integer?
+        [ 0 128 between? ] [ drop f ] if
+    ] [ drop f ] if ;
+
+: expand-<byte-array> ( #call -- nodes )
+    first-literal <byte-array>-expansion ;
+
+M: #call finalize*
+    {
+        { [ dup builtin-predicate? ] [ expand-builtin-predicate ] }
+        { [ dup expand-tuple-boa? ] [ expand-tuple-boa ] }
+        { [ dup expand-<array>? ] [ expand-<array> ] }
+        { [ dup expand-<byte-array>? ] [ expand-<byte-array> ] }
+        [ ]
+    } cond ;
+
+M: node finalize* ;
+
+: finalize ( nodes -- nodes' ) [ finalize* ] map-nodes ;
diff --git a/basis/compiler/tree/loop/detection/detection-tests.factor b/basis/compiler/tree/loop/detection/detection-tests.factor
new file mode 100644
index 0000000000..5864dc368f
--- /dev/null
+++ b/basis/compiler/tree/loop/detection/detection-tests.factor
@@ -0,0 +1,150 @@
+IN: compiler.tree.loop.detection.tests
+USING: compiler.tree.loop.detection tools.test
+kernel combinators.short-circuit math sequences accessors
+compiler.tree
+compiler.tree.builder
+compiler.tree.combinators ;
+
+[ { f f f f } ] [ f { f t f f } (tail-calls) ] unit-test
+[ { f f f t } ] [ t { f t f f } (tail-calls) ] unit-test
+[ { f t t t } ] [ t { f f t t } (tail-calls) ] unit-test
+[ { f f f t } ] [ t { f f t f } (tail-calls) ] unit-test
+
+\ detect-loops must-infer
+
+: label-is-loop? ( nodes word -- ? )
+    [
+        {
+            [ drop #recursive? ]
+            [ drop label>> loop?>> ]
+            [ swap label>> word>> eq? ]
+        } 2&&
+    ] curry contains-node? ;
+
+\ label-is-loop? must-infer
+
+: label-is-not-loop? ( nodes word -- ? )
+    [
+        {
+            [ drop #recursive? ]
+            [ drop label>> loop?>> not ]
+            [ swap label>> word>> eq? ]
+        } 2&&
+    ] curry contains-node? ;
+
+\ label-is-not-loop? must-infer
+
+: loop-test-1 ( a -- )
+    dup [ 1+ loop-test-1 ] [ drop ] if ; inline recursive
+                          
+[ t ] [
+    [ loop-test-1 ] build-tree detect-loops
+    \ loop-test-1 label-is-loop?
+] unit-test
+
+[ t ] [
+    [ loop-test-1 1 2 3 ] build-tree detect-loops
+    \ loop-test-1 label-is-loop?
+] unit-test
+
+[ t ] [
+    [ [ loop-test-1 ] each ] build-tree detect-loops
+    \ loop-test-1 label-is-loop?
+] unit-test
+
+[ t ] [
+    [ [ loop-test-1 ] each ] build-tree detect-loops
+    \ (each-integer) label-is-loop?
+] unit-test
+
+: loop-test-2 ( a -- )
+    dup [ 1+ loop-test-2 1- ] [ drop ] if ; inline recursive
+
+[ t ] [
+    [ loop-test-2 ] build-tree detect-loops
+    \ loop-test-2 label-is-not-loop?
+] unit-test
+
+: loop-test-3 ( a -- )
+    dup [ [ loop-test-3 ] each ] [ drop ] if ; inline recursive
+
+[ t ] [
+    [ loop-test-3 ] build-tree detect-loops
+    \ loop-test-3 label-is-not-loop?
+] unit-test
+
+: loop-test-4 ( a -- )
+    dup [
+        loop-test-4
+    ] [
+        drop
+    ] if ; inline recursive
+
+[ f ] [
+    [ [ [ ] map ] map ] build-tree detect-loops
+    [
+        dup #recursive? [ label>> loop?>> not ] [ drop f ] if
+    ] contains-node?
+] unit-test
+
+: blah f ;
+
+DEFER: a
+
+: b ( -- )
+    blah [ b ] [ a ] if ; inline recursive
+
+: a ( -- )
+    blah [ b ] [ a ] if ; inline recursive
+
+[ t ] [
+    [ a ] build-tree detect-loops
+    \ a label-is-loop?
+] unit-test
+
+[ t ] [
+    [ a ] build-tree detect-loops
+    \ b label-is-loop?
+] unit-test
+
+[ t ] [
+    [ b ] build-tree detect-loops
+    \ a label-is-loop?
+] unit-test
+
+[ t ] [
+    [ a ] build-tree detect-loops
+    \ b label-is-loop?
+] unit-test
+
+DEFER: a'
+
+: b' ( -- )
+    blah [ b' b' ] [ a' ] if ; inline recursive
+
+: a' ( -- )
+    blah [ b' ] [ a' ] if ; inline recursive
+
+[ f ] [
+    [ a' ] build-tree detect-loops
+    \ a' label-is-loop?
+] unit-test
+
+[ f ] [
+    [ b' ] build-tree detect-loops
+    \ b' label-is-loop?
+] unit-test
+
+! I used to think this should be f, but doing this on pen and
+! paper almost convinced me that a loop conversion here is
+! sound.
+
+[ t ] [
+    [ b' ] build-tree detect-loops
+    \ a' label-is-loop?
+] unit-test
+
+[ f ] [
+    [ a' ] build-tree detect-loops
+    \ b' label-is-loop?
+] unit-test
diff --git a/basis/compiler/tree/loop/detection/detection.factor b/basis/compiler/tree/loop/detection/detection.factor
new file mode 100644
index 0000000000..1f9e42530a
--- /dev/null
+++ b/basis/compiler/tree/loop/detection/detection.factor
@@ -0,0 +1,88 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences namespaces assocs accessors fry
+compiler.tree deques search-deques ;
+IN: compiler.tree.loop.detection
+
+! A loop is a #recursive which only tail calls itself, and those
+! calls are nested inside other loops only. We optimistically
+! assume all #recursive nodes are loops, disqualifying them as
+! we see evidence to the contrary.
+
+: (tail-calls) ( tail? seq -- seq' )
+    reverse [ swap [ and ] keep ] map nip reverse ;
+
+: tail-calls ( tail? node -- seq )
+    [
+        [ #phi? ]
+        [ #return? ]
+        [ #return-recursive? ]
+        tri or or
+    ] map (tail-calls) ;
+
+SYMBOL: loop-heights
+SYMBOL: loop-calls
+SYMBOL: loop-stack
+SYMBOL: work-list
+
+GENERIC: collect-loop-info* ( tail? node -- )
+
+: non-tail-label-info ( nodes -- )
+    [ f swap collect-loop-info* ] each ;
+
+: (collect-loop-info) ( tail? nodes -- )
+    [ tail-calls ] keep [ collect-loop-info* ] 2each ;
+
+: remember-loop-info ( label -- )
+    loop-stack get length swap loop-heights get set-at ;
+
+M: #recursive collect-loop-info*
+    nip
+    [
+        [
+            label>>
+            [ loop-stack [ swap suffix ] change ]
+            [ remember-loop-info ]
+            [ t >>loop? drop ]
+            tri
+        ]
+        [ t swap child>> (collect-loop-info) ] bi
+    ] with-scope ;
+
+: current-loop-nesting ( label -- labels )
+    loop-stack get swap loop-heights get at tail ;
+
+: disqualify-loop ( label -- )
+    work-list get push-front ;
+
+M: #call-recursive collect-loop-info*
+    label>>
+    swap [ dup disqualify-loop ] unless
+    dup current-loop-nesting [ loop-calls get push-at ] with each ;
+
+M: #if collect-loop-info*
+    children>> [ (collect-loop-info) ] with each ;
+
+M: #dispatch collect-loop-info*
+    children>> [ (collect-loop-info) ] with each ;
+
+M: node collect-loop-info* 2drop ;
+
+: collect-loop-info ( node -- )
+    { } loop-stack set
+    H{ } clone loop-calls set
+    H{ } clone loop-heights set
+    <hashed-dlist> work-list set
+    t swap (collect-loop-info) ;
+
+: disqualify-loops ( -- )
+    work-list get [
+        dup loop?>> [
+            [ f >>loop? drop ]
+            [ loop-calls get at [ disqualify-loop ] each ]
+            bi
+        ] [ drop ] if
+    ] slurp-deque ;
+
+: detect-loops ( nodes -- nodes )
+    dup collect-loop-info disqualify-loops ;
diff --git a/basis/compiler/tree/normalization/normalization-tests.factor b/basis/compiler/tree/normalization/normalization-tests.factor
new file mode 100644
index 0000000000..1b4f728adc
--- /dev/null
+++ b/basis/compiler/tree/normalization/normalization-tests.factor
@@ -0,0 +1,48 @@
+IN: compiler.tree.normalization.tests
+USING: compiler.tree.builder compiler.tree.normalization
+compiler.tree compiler.tree.checker
+sequences accessors tools.test kernel math ;
+
+\ count-introductions must-infer
+\ normalize must-infer
+
+[ 3 ] [ [ 3drop 1 2 3 ] build-tree count-introductions ] unit-test
+
+[ 4 ] [ [ 3drop 1 2 3 3drop drop ] build-tree count-introductions ] unit-test
+
+[ 3 ] [ [ [ drop ] [ 2drop 3 ] if ] build-tree count-introductions ] unit-test
+
+[ 2 ] [ [ 3 [ drop ] [ 2drop 3 ] if ] build-tree count-introductions ] unit-test
+
+: foo ( -- ) swap ; inline recursive
+
+: recursive-inputs ( nodes -- n )
+    [ #recursive? ] find nip child>> first in-d>> length ;
+
+[ 0 2 ] [
+    [ foo ] build-tree
+    [ recursive-inputs ]
+    [ normalize recursive-inputs ] bi
+] unit-test
+
+[ ] [ [ [ 1 ] [ 2 ] if + * ] build-tree normalize check-nodes ] unit-test
+
+DEFER: bbb
+: aaa ( x -- ) dup [ dup >r bbb r> aaa ] [ drop ] if ; inline recursive
+: bbb ( x -- ) >r drop 0 r> aaa ; inline recursive
+
+[ ] [ [ bbb ] build-tree normalize check-nodes ] unit-test
+
+: ccc ( -- ) ccc drop 1 ; inline recursive
+
+[ ] [ [ ccc ] build-tree normalize check-nodes ] unit-test
+
+DEFER: eee
+: ddd ( -- ) eee ; inline recursive
+: eee ( -- ) swap ddd ; inline recursive
+
+[ ] [ [ eee ] build-tree normalize check-nodes ] unit-test
+
+: call-recursive-5 ( -- ) call-recursive-5 ; inline recursive
+
+[ ] [ [ call-recursive-5 swap ] build-tree normalize check-nodes ] unit-test
diff --git a/basis/compiler/tree/normalization/normalization.factor b/basis/compiler/tree/normalization/normalization.factor
new file mode 100644
index 0000000000..587dd6938b
--- /dev/null
+++ b/basis/compiler/tree/normalization/normalization.factor
@@ -0,0 +1,209 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry namespaces sequences math accessors kernel arrays
+combinators sequences.deep assocs
+stack-checker.backend
+stack-checker.branches
+stack-checker.inlining
+compiler.tree
+compiler.tree.combinators ;
+IN: compiler.tree.normalization
+
+! A transform pass done before optimization can begin to
+! fix up some oddities in the tree output by the stack checker:
+!
+! - We rewrite the code so that all #introduce nodes are
+! replaced with a single one, at the beginning of a program.
+! This simplifies subsequent analysis.
+!
+! - We collect #return-recursive and #call-recursive nodes and
+! store them in the #recursive's label slot.
+!
+! - We normalize #call-recursive as follows. The stack checker
+! says that the inputs of a #call-recursive are the entire stack
+! at the time of the call. This is a conservative estimate; we
+! don't know the exact number of stack values it touches until
+! the #return-recursive node has been visited, because of row
+! polymorphism. So in the normalize pass, we split a
+! #call-recursive into a #copy of the unchanged values and a
+! #call-recursive with trimmed inputs and outputs.
+
+! Collect introductions
+SYMBOL: introductions
+
+GENERIC: count-introductions* ( node -- )
+
+: count-introductions ( nodes -- n )
+    #! Note: we use each, not each-node, since the #branch
+    #! method recurses into children directly and we don't
+    #! recurse into #recursive at all.
+    [
+        0 introductions set
+        [ count-introductions* ] each
+        introductions get
+    ] with-scope ;
+
+: introductions+ ( n -- ) introductions [ + ] change ;
+
+M: #introduce count-introductions*
+    out-d>> length introductions+ ;
+
+M: #branch count-introductions*
+    children>>
+    [ count-introductions ] map supremum
+    introductions+ ;
+
+M: #recursive count-introductions*
+    [ label>> ] [ child>> count-introductions ] bi
+    >>introductions
+    drop ;
+
+M: node count-introductions* drop ;
+
+! Collect label info
+GENERIC: collect-label-info ( node -- )
+
+M: #return-recursive collect-label-info
+    dup label>> (>>return) ;
+
+M: #call-recursive collect-label-info
+    dup label>> calls>> push ;
+
+M: #recursive collect-label-info
+    label>> V{ } clone >>calls drop ;
+
+M: node collect-label-info drop ;
+
+! Rename
+SYMBOL: rename-map
+
+: rename-value ( value -- value' )
+    [ rename-map get at ] keep or ;
+
+: rename-values ( values -- values' )
+    rename-map get '[ [ , at ] keep or ] map ;
+
+GENERIC: rename-node-values* ( node -- node )
+
+M: #introduce rename-node-values* ;
+
+M: #shuffle rename-node-values*
+    [ rename-values ] change-in-d
+    [ [ rename-value ] assoc-map ] change-mapping ;
+
+M: #push rename-node-values* ;
+
+M: #r> rename-node-values*
+    [ rename-values ] change-in-r ;
+
+M: #terminate rename-node-values*
+    [ rename-values ] change-in-d
+    [ rename-values ] change-in-r ;
+
+M: #phi rename-node-values*
+    [ [ rename-values ] map ] change-phi-in-d ;
+
+M: #declare rename-node-values*
+    [ [ [ rename-value ] dip ] assoc-map ] change-declaration ;
+
+M: #alien-callback rename-node-values* ;
+
+M: node rename-node-values*
+    [ rename-values ] change-in-d ;
+
+: rename-node-values ( nodes -- nodes' )
+    dup [ rename-node-values* drop ] each-node ;
+
+! Normalize
+GENERIC: normalize* ( node -- node' )
+
+SYMBOL: introduction-stack
+
+: pop-introduction ( -- value )
+    introduction-stack [ unclip-last swap ] change ;
+
+: pop-introductions ( n -- values )
+    introduction-stack [ swap cut* swap ] change ;
+
+: add-renamings ( old new -- )
+    [ rename-values ] dip
+    rename-map get '[ , set-at ] 2each ;
+
+M: #introduce normalize*
+    out-d>> [ length pop-introductions ] keep add-renamings f ;
+
+SYMBOL: remaining-introductions
+
+M: #branch normalize*
+    [
+        [
+            [
+                [ normalize* ] map flatten
+                introduction-stack get
+                2array
+            ] with-scope
+        ] map unzip swap
+    ] change-children swap
+    [ remaining-introductions set ]
+    [ [ length ] map infimum introduction-stack [ swap head ] change ]
+    bi ;
+
+: eliminate-phi-introductions ( introductions seq terminated -- seq' )
+    [
+        [ nip ] [
+            dup [ +bottom+ eq? ] trim-left
+            [ [ length ] bi@ - tail* ] keep append
+        ] if
+    ] 3map ;
+
+M: #phi normalize*
+    remaining-introductions get swap dup terminated>>
+    '[ , eliminate-phi-introductions ] change-phi-in-d ;
+
+: (normalize) ( nodes introductions -- nodes )
+    introduction-stack [
+        [ normalize* ] map flatten
+    ] with-variable ;
+
+M: #recursive normalize*
+    dup label>> introductions>>
+    [ drop [ child>> first ] [ in-d>> ] bi >>in-d drop ]
+    [ make-values '[ , (normalize) ] change-child ]
+    2bi ;
+
+M: #enter-recursive normalize*
+    [ introduction-stack get prepend ] change-out-d
+    dup [ label>> ] keep >>enter-recursive drop
+    dup [ label>> ] [ out-d>> ] bi >>enter-out drop ;
+
+: unchanged-underneath ( #call-recursive -- n )
+    [ out-d>> length ] [ label>> return>> in-d>> length ] bi - ;
+
+: call<return ( #call-recursive n -- nodes )
+    neg dup make-values [
+        [ pop-introductions '[ , prepend ] change-in-d ]
+        [ '[ , prepend ] change-out-d ]
+        bi*
+    ] [ introduction-stack [ prepend ] change ] bi ;
+
+: call>return ( #call-recursive n -- #call-recursive )
+    [ [ [ in-d>> ] [ out-d>> ] bi ] [ '[ , head ] ] bi* bi@ add-renamings ]
+    [ '[ , tail ] [ change-in-d ] [ change-out-d ] bi ]
+    2bi ;
+
+M: #call-recursive normalize*
+    dup unchanged-underneath {
+        { [ dup 0 < ] [ call<return ] }
+        { [ dup 0 = ] [ drop ] }
+        { [ dup 0 > ] [ call>return ] }
+    } cond ;
+
+M: node normalize* ;
+
+: normalize ( nodes -- nodes' )
+    H{ } clone rename-map set
+    dup [ collect-label-info ] each-node
+    dup count-introductions make-values
+    [ (normalize) ] [ nip ] 2bi
+    [ #introduce prefix ] unless-empty
+    rename-node-values ;
diff --git a/basis/compiler/tree/optimizer/optimizer-tests.factor b/basis/compiler/tree/optimizer/optimizer-tests.factor
new file mode 100644
index 0000000000..1075e441e7
--- /dev/null
+++ b/basis/compiler/tree/optimizer/optimizer-tests.factor
@@ -0,0 +1,4 @@
+USING: compiler.tree.optimizer tools.test ;
+IN: compiler.tree.optimizer.tests
+
+\ optimize-tree must-infer
diff --git a/basis/compiler/tree/optimizer/optimizer.factor b/basis/compiler/tree/optimizer/optimizer.factor
new file mode 100644
index 0000000000..aafc7f137b
--- /dev/null
+++ b/basis/compiler/tree/optimizer/optimizer.factor
@@ -0,0 +1,33 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel namespaces
+compiler.tree.normalization
+compiler.tree.propagation
+compiler.tree.cleanup
+compiler.tree.escape-analysis
+compiler.tree.tuple-unboxing
+compiler.tree.def-use
+compiler.tree.dead-code
+compiler.tree.strength-reduction
+compiler.tree.loop.detection
+compiler.tree.finalization
+compiler.tree.checker ;
+IN: compiler.tree.optimizer
+
+SYMBOL: check-optimizer?
+
+: optimize-tree ( nodes -- nodes' )
+    normalize
+    propagate
+    cleanup
+    detect-loops
+    escape-analysis
+    unbox-tuples
+    compute-def-use
+    remove-dead-code
+    ! strength-reduce
+    check-optimizer? get [
+        compute-def-use
+        dup check-nodes
+    ] when
+    finalize ;
diff --git a/core/inference/class/authors.txt b/basis/compiler/tree/propagation/authors.txt
similarity index 100%
rename from core/inference/class/authors.txt
rename to basis/compiler/tree/propagation/authors.txt
diff --git a/basis/compiler/tree/propagation/branches/branches.factor b/basis/compiler/tree/propagation/branches/branches.factor
new file mode 100644
index 0000000000..f06f6792c7
--- /dev/null
+++ b/basis/compiler/tree/propagation/branches/branches.factor
@@ -0,0 +1,159 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry kernel sequences assocs accessors namespaces
+math.intervals arrays classes.algebra combinators columns
+stack-checker.branches
+compiler.tree
+compiler.tree.combinators
+compiler.tree.propagation.info
+compiler.tree.propagation.nodes
+compiler.tree.propagation.simple
+compiler.tree.propagation.constraints ;
+IN: compiler.tree.propagation.branches
+
+! For conditionals, an assoc of child node # --> constraint
+GENERIC: child-constraints ( node -- seq )
+
+M: #if child-constraints
+    in-d>> first [ =t ] [ =f ] bi 2array ;
+
+M: #dispatch child-constraints
+    children>> length f <repetition> ;
+
+GENERIC: live-branches ( #branch -- indices )
+
+M: #if live-branches
+    in-d>> first value-info class>> {
+        { [ dup null-class? ] [ { f f } ] }
+        { [ dup true-class? ] [ { t f } ] }
+        { [ dup false-class? ] [ { f t } ] }
+        [ { t t } ]
+    } cond nip ;
+
+M: #dispatch live-branches
+    [ children>> length ] [ in-d>> first value-info interval>> ] bi
+    '[ , interval-contains? ] map ;
+
+: live-children ( #branch -- children )
+    [ children>> ] [ live-branches>> ] bi select-children ;
+
+SYMBOL: infer-children-data
+
+: copy-value-info ( -- )
+    value-infos [ clone ] change
+    constraints [ clone ] change ;
+
+: no-value-info ( -- )
+    value-infos off
+    constraints off ;
+
+: infer-children ( node -- )
+    [ live-children ] [ child-constraints ] bi [
+        [
+            over
+            [ copy-value-info assume (propagate) ]
+            [ 2drop no-value-info ]
+            if
+        ] H{ } make-assoc
+    ] 2map infer-children-data set ;
+
+: compute-phi-input-infos ( phi-in -- phi-info )
+    infer-children-data get
+    [
+        '[
+            , [
+                dup +bottom+ eq?
+                [ drop null-info ] [ value-info ] if
+            ] bind
+        ] map
+    ] 2map ;
+
+: annotate-phi-inputs ( #phi -- )
+    dup phi-in-d>> compute-phi-input-infos >>phi-info-d drop ;
+
+: merge-value-infos ( infos outputs -- )
+    [ [ value-infos-union ] map ] dip set-value-infos ;
+
+SYMBOL: condition-value
+
+M: #phi propagate-before ( #phi -- )
+    [ annotate-phi-inputs ]
+    [ [ phi-info-d>> <flipped> ] [ out-d>> ] bi merge-value-infos ]
+    bi ;
+
+: branch-phi-constraints ( output values booleans -- )
+     {
+        {
+            { { t } { f } }
+            [
+                drop condition-value get
+                [ [ =t ] [ =t ] bi* <--> ]
+                [ [ =f ] [ =f ] bi* <--> ] 2bi /\
+            ]
+        }
+        {
+            { { f } { t } }
+            [
+                drop condition-value get
+                [ [ =t ] [ =f ] bi* <--> ]
+                [ [ =f ] [ =t ] bi* <--> ] 2bi /\
+            ]
+        }
+        {
+            { { t f } { f } }
+            [
+                first =t
+                condition-value get =t /\
+                swap t-->
+            ]
+        }
+        {
+            { { f } { t f } }
+            [
+                second =t
+                condition-value get =f /\
+                swap t-->
+            ]
+        }
+        ! {
+        !     { { t f } { } }
+        !     [ B
+        !         first
+        !         [ [ =t ] bi@ <--> ]
+        !         [ [ =f ] bi@ <--> ] 2bi /\
+        !     ]
+        ! }
+        ! {
+        !     { { } { t f } }
+        !     [
+        !         second
+        !         [ [ =t ] bi@ <--> ]
+        !         [ [ =f ] bi@ <--> ] 2bi /\
+        !     ]
+        ! }
+        [ 3drop f ]
+    } case assume ;
+
+M: #phi propagate-after ( #phi -- )
+    condition-value get [
+        [ out-d>> ]
+        [ phi-in-d>> <flipped> ]
+        [ phi-info-d>> <flipped> ] tri
+        [
+            [ possible-boolean-values ] map
+            branch-phi-constraints
+        ] 3each
+    ] [ drop ] if ;
+
+M: #phi propagate-around ( #phi -- )
+    [ propagate-before ] [ propagate-after ] bi ;
+
+M: #branch propagate-around
+    dup live-branches >>live-branches
+    [ infer-children ] [ annotate-node ] bi ;
+
+M: #if propagate-around
+    [ in-d>> first condition-value set ] [ call-next-method ] bi ;
+
+M: #dispatch propagate-around
+    condition-value off call-next-method ;
diff --git a/basis/compiler/tree/propagation/constraints/constraints.factor b/basis/compiler/tree/propagation/constraints/constraints.factor
new file mode 100644
index 0000000000..cfdf7f5169
--- /dev/null
+++ b/basis/compiler/tree/propagation/constraints/constraints.factor
@@ -0,0 +1,110 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays assocs math math.intervals kernel accessors
+sequences namespaces classes classes.algebra
+combinators words
+compiler.tree
+compiler.tree.propagation.info
+compiler.tree.propagation.copy ;
+IN: compiler.tree.propagation.constraints
+
+! A constraint is a statement about a value.
+
+! Maps constraints to constraints ("A implies B")
+SYMBOL: constraints
+
+GENERIC: assume* ( constraint -- )
+GENERIC: satisfied? ( constraint -- ? )
+
+M: f assume* drop ;
+
+! satisfied? is inaccurate. It's just used to prevent infinite
+! loops so its only implemented for true-constraints and
+! false-constraints.
+M: object satisfied? drop f ;
+
+: assume ( constraint -- ) dup satisfied? [ drop ] [ assume* ] if ;
+
+! Boolean constraints
+TUPLE: true-constraint value ;
+
+: =t ( value -- constriant ) resolve-copy true-constraint boa ;
+
+M: true-constraint assume*
+    [ \ f class-not <class-info> swap value>> refine-value-info ]
+    [ constraints get at [ assume ] when* ]
+    bi ;
+
+M: true-constraint satisfied?
+    value>> value-info class>> true-class? ;
+
+TUPLE: false-constraint value ;
+
+: =f ( value -- constriant ) resolve-copy false-constraint boa ;
+
+M: false-constraint assume*
+    [ \ f <class-info> swap value>> refine-value-info ]
+    [ constraints get at [ assume ] when* ]
+    bi ;
+
+M: false-constraint satisfied?
+    value>> value-info class>> false-class? ;
+
+! Class constraints
+TUPLE: class-constraint value class ;
+
+: is-instance-of ( value class -- constraint )
+    [ resolve-copy ] dip class-constraint boa ;
+
+M: class-constraint assume*
+    [ class>> <class-info> ] [ value>> ] bi refine-value-info ;
+
+! Interval constraints
+TUPLE: interval-constraint value interval ;
+
+: is-in-interval ( value interval -- constraint )
+    [ resolve-copy ] dip interval-constraint boa ;
+
+M: interval-constraint assume*
+    [ interval>> <interval-info> ] [ value>> ] bi refine-value-info ;
+
+! Literal constraints
+TUPLE: literal-constraint value literal ;
+
+: is-equal-to ( value literal -- constraint )
+    [ resolve-copy ] dip literal-constraint boa ;
+
+M: literal-constraint assume*
+    [ literal>> <literal-info> ] [ value>> ] bi refine-value-info ;
+
+! Implication constraints
+TUPLE: implication p q ;
+
+C: --> implication
+
+: assume-implication ( p q -- )
+    [ constraints get [ swap suffix ] change-at ]
+    [ satisfied? [ assume ] [ drop ] if ] 2bi ;
+
+M: implication assume*
+    [ q>> ] [ p>> ] bi assume-implication ;
+
+! Equivalence constraints
+TUPLE: equivalence p q ;
+
+C: <--> equivalence
+
+M: equivalence assume*
+    [ p>> ] [ q>> ] bi
+    [ assume-implication ]
+    [ swap assume-implication ] 2bi ;
+
+! Conjunction constraints -- sequences act as conjunctions
+M: sequence assume* [ assume ] each ;
+
+: /\ ( p q -- constraint ) 2array ;
+
+! Utilities
+: t--> ( constraint boolean-value -- constraint' ) =t swap --> ;
+
+: f--> ( constraint boolean-value -- constraint' ) =f swap --> ;
diff --git a/basis/compiler/tree/propagation/copy/copy-tests.factor b/basis/compiler/tree/propagation/copy/copy-tests.factor
new file mode 100644
index 0000000000..a99c2a2447
--- /dev/null
+++ b/basis/compiler/tree/propagation/copy/copy-tests.factor
@@ -0,0 +1,25 @@
+IN: compiler.tree.propagation.copy.tests
+USING: compiler.tree.propagation.copy tools.test namespaces kernel
+assocs ;
+
+H{ } clone copies set
+
+[ ] [ 0 introduce-value ] unit-test
+[ ] [ 1 introduce-value ] unit-test
+[ ] [ 1 2 is-copy-of ] unit-test
+[ ] [ 2 3 is-copy-of ] unit-test
+[ ] [ 2 4 is-copy-of ] unit-test
+[ ] [ 4 5 is-copy-of ] unit-test
+[ ] [ 0 6 is-copy-of ] unit-test
+
+[ 0 ] [ 0 resolve-copy ] unit-test
+[ 1 ] [ 5 resolve-copy ] unit-test
+
+! Make sure that we did path compression
+[ 1 ] [ 5 copies get at ] unit-test
+
+[ 1 ] [ 1 resolve-copy ] unit-test
+[ 1 ] [ 2 resolve-copy ] unit-test
+[ 1 ] [ 3 resolve-copy ] unit-test
+[ 1 ] [ 4 resolve-copy ] unit-test
+[ 0 ] [ 6 resolve-copy ] unit-test
diff --git a/basis/compiler/tree/propagation/copy/copy.factor b/basis/compiler/tree/propagation/copy/copy.factor
new file mode 100644
index 0000000000..2452aba4aa
--- /dev/null
+++ b/basis/compiler/tree/propagation/copy/copy.factor
@@ -0,0 +1,59 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces sequences assocs math kernel accessors fry
+combinators sets locals columns
+stack-checker.branches
+compiler.tree
+compiler.tree.def-use
+compiler.tree.combinators ;
+IN: compiler.tree.propagation.copy
+
+! Two values are copy-equivalent if they are always identical
+! at run-time ("DS" relation). This is just a weak form of
+! value numbering.
+
+! Mapping from values to their canonical leader
+SYMBOL: copies
+
+:: compress-path ( source assoc -- destination )
+    [let | destination [ source assoc at ] |
+        source destination = [ source ] [
+            [let | destination' [ destination assoc compress-path ] |
+                destination' destination = [
+                    destination' source assoc set-at
+                ] unless
+                destination'
+            ]
+        ] if
+    ] ;
+
+: resolve-copy ( copy -- val ) copies get compress-path ;
+
+: is-copy-of ( val copy -- ) copies get set-at ;
+
+: are-copies-of ( vals copies -- ) [ is-copy-of ] 2each ;
+
+: introduce-value ( val -- ) copies get conjoin ;
+
+GENERIC: compute-copy-equiv* ( node -- )
+
+M: #renaming compute-copy-equiv* inputs/outputs are-copies-of ;
+
+: compute-phi-equiv ( inputs outputs -- )
+    #! An output is a copy of every input if all inputs are
+    #! copies of the same original value.
+    [
+        swap remove-bottom [ resolve-copy ] map
+        dup [ all-equal? ] [ empty? not ] bi and
+        [ first swap is-copy-of ] [ 2drop ] if
+    ] 2each ;
+
+M: #phi compute-copy-equiv*
+    [ phi-in-d>> <flipped> ] [ out-d>> ] bi compute-phi-equiv ;
+
+M: node compute-copy-equiv* drop ;
+
+: compute-copy-equiv ( node -- )
+    [ node-defs-values [ introduce-value ] each ]
+    [ compute-copy-equiv* ]
+    bi ;
diff --git a/basis/compiler/tree/propagation/info/info-tests.factor b/basis/compiler/tree/propagation/info/info-tests.factor
new file mode 100644
index 0000000000..24f4ca59dc
--- /dev/null
+++ b/basis/compiler/tree/propagation/info/info-tests.factor
@@ -0,0 +1,72 @@
+USING: accessors math math.intervals sequences classes.algebra
+math kernel tools.test compiler.tree.propagation.info arrays ;
+IN: compiler.tree.propagation.info.tests
+
+[ f ] [ 0.0 -0.0 eql? ] unit-test
+
+[ t ] [
+    number <class-info>
+    sequence <class-info>
+    value-info-intersect
+    class>> integer class=
+] unit-test
+
+[ t t ] [
+    0 10 [a,b] <interval-info>
+    5 20 [a,b] <interval-info>
+    value-info-intersect
+    [ class>> real class= ]
+    [ interval>> 5 10 [a,b] = ]
+    bi
+] unit-test
+
+[ float 10.0 t ] [
+    10.0 <literal-info>
+    10.0 <literal-info>
+    value-info-intersect
+    [ class>> ] [ >literal< ] bi
+] unit-test
+
+[ null ] [
+    10 <literal-info>
+    10.0 <literal-info>
+    value-info-intersect
+    class>>
+] unit-test
+
+[ fixnum 10 t ] [
+    10 <literal-info>
+    10 <literal-info>
+    value-info-union
+    [ class>> ] [ >literal< ] bi
+] unit-test
+
+[ 3.0 t ] [
+    3 3 [a,b] <interval-info> float <class-info>
+    value-info-intersect >literal<
+] unit-test
+
+[ 3 t ] [
+    2 3 (a,b] <interval-info> fixnum <class-info>
+    value-info-intersect >literal<
+] unit-test
+
+[ T{ value-info f null empty-interval f f } ] [
+    fixnum -10 0 [a,b] <class/interval-info>
+    fixnum 19 29 [a,b] <class/interval-info>
+    value-info-intersect
+] unit-test
+
+[ 3 t ] [
+    3 <literal-info>
+    null-info value-info-union >literal<
+] unit-test
+
+[ ] [ { } value-infos-union drop ] unit-test
+
+TUPLE: test-tuple { x read-only } ;
+
+[ t ] [
+    f f 3 <literal-info> 3array test-tuple <tuple-info> dup
+    object-info value-info-intersect =
+] unit-test
diff --git a/basis/compiler/tree/propagation/info/info.factor b/basis/compiler/tree/propagation/info/info.factor
new file mode 100644
index 0000000000..0891a6629c
--- /dev/null
+++ b/basis/compiler/tree/propagation/info/info.factor
@@ -0,0 +1,305 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs classes classes.algebra classes.tuple
+classes.tuple.private kernel accessors math math.intervals
+namespaces sequences words combinators combinators.short-circuit
+arrays compiler.tree.propagation.copy ;
+IN: compiler.tree.propagation.info
+
+: false-class? ( class -- ? ) \ f class<= ;
+
+: true-class? ( class -- ? ) \ f class-not class<= ;
+
+: null-class? ( class -- ? ) null class<= ;
+
+GENERIC: eql? ( obj1 obj2 -- ? )
+M: object eql? eq? ;
+M: fixnum eql? eq? ;
+M: bignum eql? over bignum? [ = ] [ 2drop f ] if ;
+M: ratio eql? over ratio? [ = ] [ 2drop f ] if ;
+M: float eql? over float? [ [ double>bits ] bi@ = ] [ 2drop f ] if ;
+M: complex eql? over complex? [ = ] [ 2drop f ] if ;
+
+! Value info represents a set of objects. Don't mutate value infos
+! you receive, always construct new ones. We don't declare the
+! slots read-only to allow cloning followed by writing, and to
+! simplify constructors.
+TUPLE: value-info
+class
+interval
+literal
+literal?
+length
+slots ;
+
+: null-info T{ value-info f null empty-interval } ; inline
+
+: object-info T{ value-info f object T{ interval f { -1.0/0.0 t } { 1.0/0.0 t } } } ; inline
+
+: class-interval ( class -- interval )
+    dup real class<=
+    [ "interval" word-prop [-inf,inf] or ] [ drop f ] if ;
+
+: interval>literal ( class interval -- literal literal? )
+    #! If interval has zero length and the class is sufficiently
+    #! precise, we can turn it into a literal
+    dup empty-interval eq? [
+        2drop f f
+    ] [
+        dup from>> first {
+            { [ over interval-length 0 > ] [ 3drop f f ] }
+            { [ pick bignum class<= ] [ 2nip >bignum t ] }
+            { [ pick integer class<= ] [ 2nip >fixnum t ] }
+            { [ pick float class<= ] [
+                2nip dup zero? [ drop f f ] [ >float t ] if
+            ] }
+            [ 3drop f f ]
+        } cond
+    ] if ;
+
+: <value-info> ( -- info ) \ value-info new ;
+
+: read-only-slots ( values class -- slots )
+    all-slots
+    [ read-only>> [ drop f ] unless ] 2map
+    f prefix ;
+
+DEFER: <literal-info>
+
+: init-literal-info ( info -- info )
+    dup literal>> class >>class
+    dup literal>> dup real? [ [a,a] >>interval ] [
+        [ [-inf,inf] >>interval ] dip
+        {
+            { [ dup complex? ] [
+                [ real-part <literal-info> ]
+                [ imaginary-part <literal-info> ] bi
+                2array >>slots
+            ] }
+            { [ dup tuple? ] [
+                [ tuple-slots [ <literal-info> ] map ] [ class ] bi
+                read-only-slots >>slots
+            ] }
+            [ drop ]
+        } cond
+    ] if ; inline
+
+: init-value-info ( info -- info )
+    dup literal?>> [
+        init-literal-info
+    ] [
+        dup [ class>> null-class? ] [ interval>> empty-interval eq? ] bi or [
+            null >>class
+            empty-interval >>interval
+        ] [
+            [ [-inf,inf] or ] change-interval
+            dup class>> integer class<= [ [ integral-closure ] change-interval ] when
+            dup [ class>> ] [ interval>> ] bi interval>literal
+            [ >>literal ] [ >>literal? ] bi*
+        ] if
+    ] if ; inline
+
+: <class/interval-info> ( class interval -- info )
+    <value-info>
+        swap >>interval
+        swap >>class
+    init-value-info ; foldable
+
+: <class-info> ( class -- info )
+    dup word? [ dup "interval" word-prop ] [ f ] if [-inf,inf] or
+    <class/interval-info> ; foldable
+
+: <interval-info> ( interval -- info )
+    <value-info>
+        real >>class
+        swap >>interval
+    init-value-info ; foldable
+
+: <literal-info> ( literal -- info )
+    <value-info>
+        swap >>literal
+        t >>literal?
+    init-value-info ; foldable
+
+: <sequence-info> ( value -- info )
+    <value-info>
+        object >>class
+        swap value-info >>length
+    init-value-info ; foldable
+
+: <tuple-info> ( slots class -- info )
+    <value-info>
+        swap >>class
+        swap >>slots
+    init-value-info ;
+
+: >literal< ( info -- literal literal? )
+    [ literal>> ] [ literal?>> ] bi ;
+
+: intersect-literals ( info1 info2 -- literal literal? )
+    {
+        { [ dup literal?>> not ] [ drop >literal< ] }
+        { [ over literal?>> not ] [ nip >literal< ] }
+        { [ 2dup [ literal>> ] bi@ eql? not ] [ 2drop f f ] }
+        [ drop >literal< ]
+    } cond ;
+
+DEFER: value-info-intersect
+
+DEFER: (value-info-intersect)
+
+: intersect-lengths ( info1 info2 -- length )
+    [ length>> ] bi@ {
+        { [ dup not ] [ drop ] }
+        { [ over not ] [ nip ] }
+        [ value-info-intersect ]
+    } cond ;
+
+: intersect-slot ( info1 info2 -- info )
+    {
+        { [ dup not ] [ nip ] }
+        { [ over not ] [ drop ] }
+        [ (value-info-intersect) ]
+    } cond ;
+
+: intersect-slots ( info1 info2 -- slots )
+    [ slots>> ] bi@ {
+        { [ dup not ] [ drop ] }
+        { [ over not ] [ nip ] }
+        [
+            2dup [ length ] bi@ =
+            [ [ intersect-slot ] 2map ] [ 2drop f ] if
+        ]
+    } cond ;
+
+: (value-info-intersect) ( info1 info2 -- info )
+    [ <value-info> ] 2dip
+    {
+        [ [ class>> ] bi@ class-and >>class ]
+        [ [ interval>> ] bi@ interval-intersect >>interval ]
+        [ intersect-literals [ >>literal ] [ >>literal? ] bi* ]
+        [ intersect-lengths >>length ]
+        [ intersect-slots >>slots ]
+    } 2cleave
+    init-value-info ;
+
+: value-info-intersect ( info1 info2 -- info )
+    {
+        { [ dup class>> null-class? ] [ nip ] }
+        { [ over class>> null-class? ] [ drop ] }
+        [ (value-info-intersect) ]
+    } cond ;
+
+: union-literals ( info1 info2 -- literal literal? )
+    2dup [ literal?>> ] both? [
+        [ literal>> ] bi@ 2dup eql? [ drop t ] [ 2drop f f ] if
+    ] [ 2drop f f ] if ;
+
+DEFER: value-info-union
+
+DEFER: (value-info-union)
+
+: union-lengths ( info1 info2 -- length )
+    [ length>> ] bi@ {
+        { [ dup not ] [ nip ] }
+        { [ over not ] [ drop ] }
+        [ value-info-union ]
+    } cond ;
+
+: union-slot ( info1 info2 -- info )
+    {
+        { [ dup not ] [ nip ] }
+        { [ over not ] [ drop ] }
+        [ (value-info-union) ]
+    } cond ;
+
+: union-slots ( info1 info2 -- slots )
+    [ slots>> ] bi@
+    2dup [ length ] bi@ =
+    [ [ union-slot ] 2map ] [ 2drop f ] if ;
+
+: (value-info-union) ( info1 info2 -- info )
+    [ <value-info> ] 2dip
+    {
+        [ [ class>> ] bi@ class-or >>class ]
+        [ [ interval>> ] bi@ interval-union >>interval ]
+        [ union-literals [ >>literal ] [ >>literal? ] bi* ]
+        [ union-lengths >>length ]
+        [ union-slots >>slots ]
+    } 2cleave
+    init-value-info ;
+
+: value-info-union ( info1 info2 -- info )
+    {
+        { [ dup class>> null-class? ] [ drop ] }
+        { [ over class>> null-class? ] [ nip ] }
+        [ (value-info-union) ]
+    } cond ;
+
+: value-infos-union ( infos -- info )
+    [ null-info ]
+    [ dup first [ value-info-union ] reduce ] if-empty ;
+
+: literals<= ( info1 info2 -- ? )
+    {
+        { [ dup literal?>> not ] [ 2drop t ] }
+        { [ over literal?>> not ] [ 2drop f ] }
+        [ [ literal>> ] bi@ eql? ]
+    } cond ;
+
+: value-info<= ( info1 info2 -- ? )
+    {
+        { [ dup not ] [ 2drop t ] }
+        { [ over not ] [ 2drop f ] }
+        [
+            {
+                [ [ class>> ] bi@ class<= ]
+                [ [ interval>> ] bi@ interval-subset? ]
+                [ literals<= ]
+                [ [ length>> ] bi@ value-info<= ]
+                [ [ slots>> ] bi@ [ value-info<= ] 2all? ]
+            } 2&&
+        ]
+    } cond ;
+
+! Current value --> info mapping
+SYMBOL: value-infos
+
+: value-info ( value -- info )
+    resolve-copy value-infos get at null-info or ;
+
+: set-value-info ( info value -- )
+    resolve-copy value-infos get set-at ;
+
+: refine-value-info ( info value -- )
+    resolve-copy value-infos get [ value-info-intersect ] change-at ;
+
+: value-literal ( value -- obj ? )
+    value-info >literal< ;
+
+: possible-boolean-values ( info -- values )
+    dup literal?>> [
+        literal>> 1array
+    ] [
+        class>> {
+            { [ dup null-class? ] [ { } ] }
+            { [ dup true-class? ] [ { t } ] }
+            { [ dup false-class? ] [ { f } ] }
+            [ { t f } ]
+        } cond nip
+    ] if ;
+
+: node-value-info ( node value -- info )
+    swap info>> at* [ drop null-info ] unless ;
+
+: node-input-infos ( node -- seq )
+    dup in-d>> [ node-value-info ] with map ;
+
+: node-output-infos ( node -- seq )
+    dup out-d>> [ node-value-info ] with map ;
+
+: immutable-tuple-boa? ( #call -- ? )
+    dup word>> \ <tuple-boa> eq? [
+        dup in-d>> peek node-value-info
+        literal>> class>> immutable-tuple-class?
+    ] [ drop f ] if ;
diff --git a/basis/compiler/tree/propagation/inlining/inlining.factor b/basis/compiler/tree/propagation/inlining/inlining.factor
new file mode 100644
index 0000000000..4f93769b7f
--- /dev/null
+++ b/basis/compiler/tree/propagation/inlining/inlining.factor
@@ -0,0 +1,157 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel arrays sequences math math.order
+math.partial-dispatch generic generic.standard generic.math
+classes.algebra classes.union sets quotations assocs combinators
+words namespaces
+compiler.tree
+compiler.tree.builder
+compiler.tree.normalization
+compiler.tree.propagation.info
+compiler.tree.propagation.nodes ;
+IN: compiler.tree.propagation.inlining
+
+! Splicing nodes
+GENERIC: splicing-nodes ( #call word/quot/f -- nodes )
+
+M: word splicing-nodes
+    [ [ in-d>> ] [ out-d>> ] bi ] dip #call 1array ;
+
+M: quotation splicing-nodes
+    build-sub-tree normalize ;
+
+: propagate-body ( #call -- )
+    body>> (propagate) ;
+
+! Dispatch elimination
+: eliminate-dispatch ( #call class/f word/f -- ? )
+    dup [
+        [ >>class ] dip
+        over method>> over = [ drop ] [
+            2dup splicing-nodes
+            [ >>method ] [ >>body ] bi*
+        ] if
+        propagate-body t
+    ] [ 2drop f >>method f >>body f >>class drop f ] if ;
+
+: inlining-standard-method ( #call word -- class/f method/f )
+    [ in-d>> <reversed> ] [ [ dispatch# ] keep ] bi*
+    [ swap nth value-info class>> dup ] dip
+    specific-method ;
+
+: inline-standard-method ( #call word -- ? )
+    dupd inlining-standard-method eliminate-dispatch ;
+
+: normalize-math-class ( class -- class' )
+    {
+        null
+        fixnum bignum integer
+        ratio rational
+        float real
+        complex number
+        object
+    } [ class<= ] with find nip ;
+
+: inlining-math-method ( #call word -- class/f quot/f )
+    swap in-d>>
+    first2 [ value-info class>> normalize-math-class ] bi@
+    3dup math-both-known?
+    [ math-method* ] [ 3drop f ] if
+    number swap ;
+
+: inline-math-method ( #call word -- ? )
+    dupd inlining-math-method eliminate-dispatch ;
+
+: inlining-math-partial ( #call word -- class/f quot/f )
+    [ "derived-from" word-prop first inlining-math-method ]
+    [ nip 1quotation ] 2bi
+    [ = not ] [ drop ] 2bi and ;
+
+: inline-math-partial ( #call word -- ? )
+    dupd inlining-math-partial eliminate-dispatch ;
+
+! Method body inlining
+SYMBOL: recursive-calls
+DEFER: (flat-length)
+
+: word-flat-length ( word -- n )
+    {
+        ! not inline
+        { [ dup inline? not ] [ drop 1 ] }
+        ! recursive and inline
+        { [ dup recursive-calls get key? ] [ drop 10 ] }
+        ! inline
+        [ [ recursive-calls get conjoin ] [ def>> (flat-length) ] bi ]
+    } cond ;
+
+: (flat-length) ( seq -- n )
+    [
+        {
+            { [ dup quotation? ] [ (flat-length) 2 + ] }
+            { [ dup array? ] [ (flat-length) ] }
+            { [ dup word? ] [ word-flat-length ] }
+            [ drop 0 ]
+        } cond
+    ] sigma ;
+
+: flat-length ( word -- n )
+    H{ } clone recursive-calls [
+        [ recursive-calls get conjoin ]
+        [ def>> (flat-length) 5 /i ]
+        bi
+    ] with-variable ;
+
+: classes-known? ( #call -- ? )
+    in-d>> [
+        value-info class>>
+        [ class-types length 1 = ]
+        [ union-class? not ]
+        bi and
+    ] contains? ;
+
+: inlining-rank ( #call word -- n )
+    [ classes-known? 2 0 ? ]
+    [
+        {
+            [ flat-length 24 swap [-] 4 /i ]
+            [ "default" word-prop -4 0 ? ]
+            [ "specializer" word-prop 1 0 ? ]
+            [ method-body? 1 0 ? ]
+        } cleave
+    ] bi* + + + + ;
+
+: should-inline? ( #call word -- ? )
+    inlining-rank 5 >= ;
+
+SYMBOL: history
+
+: remember-inlining ( word -- )
+    history [ swap suffix ] change ;
+
+: inline-word ( #call word -- ? )
+    dup history get memq? [
+        2drop f
+    ] [
+        [
+            dup remember-inlining
+            dupd def>> splicing-nodes >>body
+            propagate-body
+        ] with-scope
+        t
+    ] if ;
+
+: inline-method-body ( #call word -- ? )
+    2dup should-inline? [ inline-word ] [ 2drop f ] if ;
+
+: always-inline-word? ( word -- ? )
+    { curry compose } memq? ;
+
+: do-inlining ( #call word -- ? )
+    {
+        { [ dup always-inline-word? ] [ inline-word ] }
+        { [ dup standard-generic? ] [ inline-standard-method ] }
+        { [ dup math-generic? ] [ inline-math-method ] }
+        { [ dup math-partial? ] [ inline-math-partial ] }
+        { [ dup method-body? ] [ inline-method-body ] }
+        [ 2drop f ]
+    } cond ;
diff --git a/basis/compiler/tree/propagation/known-words/known-words.factor b/basis/compiler/tree/propagation/known-words/known-words.factor
new file mode 100644
index 0000000000..d31de354d1
--- /dev/null
+++ b/basis/compiler/tree/propagation/known-words/known-words.factor
@@ -0,0 +1,296 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel effects accessors math math.private math.libm
+math.partial-dispatch math.intervals math.parser math.order
+layouts words sequences sequences.private arrays assocs classes
+classes.algebra combinators generic.math splitting fry locals
+classes.tuple alien.accessors classes.tuple.private slots.private
+definitions
+stack-checker.state
+compiler.intrinsics
+compiler.tree.comparisons
+compiler.tree.propagation.info
+compiler.tree.propagation.nodes
+compiler.tree.propagation.slots
+compiler.tree.propagation.simple
+compiler.tree.propagation.constraints ;
+IN: compiler.tree.propagation.known-words
+
+\ fixnum
+most-negative-fixnum most-positive-fixnum [a,b]
+"interval" set-word-prop
+
+\ array-capacity
+0 max-array-capacity [a,b]
+"interval" set-word-prop
+
+{ + - * / }
+[ { number number } "input-classes" set-word-prop ] each
+
+{ /f < > <= >= }
+[ { real real } "input-classes" set-word-prop ] each
+
+{ /i mod /mod }
+[ { rational rational } "input-classes" set-word-prop ] each
+
+{ bitand bitor bitxor bitnot shift }
+[ { integer integer } "input-classes" set-word-prop ] each
+
+\ bitnot { integer } "input-classes" set-word-prop
+
+{
+    fcosh
+    flog
+    fsinh
+    fexp
+    fasin
+    facosh
+    fasinh
+    ftanh
+    fatanh
+    facos
+    fpow
+    fatan
+    fatan2
+    fcos
+    ftan
+    fsin
+    fsqrt
+} [
+    dup stack-effect
+    [ in>> length real <repetition> "input-classes" set-word-prop ]
+    [ out>> length float <repetition> "default-output-classes" set-word-prop ]
+    2bi
+] each
+
+: ?change-interval ( info quot -- quot' )
+    over interval>> [ [ clone ] dip change-interval ] [ 2drop ] if ; inline
+
+{ bitnot fixnum-bitnot bignum-bitnot } [
+    [ [ interval-bitnot ] ?change-interval ] "outputs" set-word-prop
+] each
+
+\ abs [ [ interval-abs ] ?change-interval ] "outputs" set-word-prop
+
+: math-closure ( class -- newclass )
+    { fixnum bignum integer rational float real number object }
+    [ class<= ] with find nip ;
+
+: fits? ( interval class -- ? )
+    "interval" word-prop interval-subset? ;
+
+: binary-op-class ( info1 info2 -- newclass )
+    [ class>> ] bi@
+    2dup [ null-class? ] either? [ 2drop null ] [
+        [ math-closure ] bi@ math-class-max
+    ] if ;
+
+: binary-op-interval ( info1 info2 quot -- newinterval )
+    [ [ interval>> ] bi@ ] dip call ; inline
+
+: won't-overflow? ( class interval -- ? )
+    [ fixnum class<= ] [ fixnum fits? ] bi* and ;
+
+: may-overflow ( class interval -- class' interval' )
+    over null-class? [
+        2dup won't-overflow?
+        [ [ integer math-class-max ] dip ] unless
+    ] unless ;
+
+: may-be-rational ( class interval -- class' interval' )
+    over null-class? [
+        [ rational math-class-max ] dip
+    ] unless ;
+
+: number-valued ( class interval -- class' interval' )
+    [ number math-class-min ] dip ;
+
+: integer-valued ( class interval -- class' interval' )
+    [ integer math-class-min ] dip ;
+
+: real-valued ( class interval -- class' interval' )
+    [ real math-class-min ] dip ;
+
+: float-valued ( class interval -- class' interval' )
+    over null-class? [
+        [ drop float ] dip
+    ] unless ;
+
+: binary-op ( word interval-quot post-proc-quot -- )
+    '[
+        [ binary-op-class ] [ , binary-op-interval ] 2bi
+        @
+        <class/interval-info>
+    ] "outputs" set-word-prop ;
+
+\ + [ [ interval+ ] [ may-overflow number-valued ] binary-op ] each-derived-op
+\ + [ [ interval+ ] [ number-valued ] binary-op ] each-fast-derived-op
+
+\ - [ [ interval- ] [ may-overflow number-valued ] binary-op ] each-derived-op
+\ - [ [ interval- ] [ number-valued ] binary-op ] each-fast-derived-op
+
+\ * [ [ interval* ] [ may-overflow number-valued ] binary-op ] each-derived-op
+\ * [ [ interval* ] [ number-valued ] binary-op ] each-fast-derived-op
+
+\ / [ [ interval/-safe ] [ may-be-rational number-valued ] binary-op ] each-derived-op
+\ /i [ [ interval/i ] [ may-overflow integer-valued ] binary-op ] each-derived-op
+\ /f [ [ interval/f ] [ float-valued ] binary-op ] each-derived-op
+
+\ mod [ [ interval-mod ] [ real-valued ] binary-op ] each-derived-op
+\ rem [ [ interval-rem ] [ may-overflow real-valued ] binary-op ] each-derived-op
+
+\ shift [ [ interval-shift-safe ] [ may-overflow integer-valued ] binary-op ] each-derived-op
+\ shift [ [ interval-shift-safe ] [ integer-valued ] binary-op ] each-fast-derived-op
+
+\ bitand [ [ interval-bitand ] [ integer-valued ] binary-op ] each-derived-op
+\ bitor [ [ interval-bitor ] [ integer-valued ] binary-op ] each-derived-op
+\ bitxor [ [ interval-bitxor ] [ integer-valued ] binary-op ] each-derived-op
+
+:: (comparison-constraints) ( in1 in2 op -- constraint )
+    [let | i1 [ in1 value-info interval>> ]
+           i2 [ in2 value-info interval>> ] |
+       in1 i1 i2 op assumption is-in-interval
+       in2 i2 i1 op swap-comparison assumption is-in-interval
+       /\
+    ] ;
+
+:: comparison-constraints ( in1 in2 out op -- constraint )
+    in1 in2 op (comparison-constraints) out t-->
+    in1 in2 op negate-comparison (comparison-constraints) out f--> /\ ;
+
+: define-comparison-constraints ( word op -- )
+    '[ , comparison-constraints ] "constraints" set-word-prop ;
+
+comparison-ops
+[ dup '[ , define-comparison-constraints ] each-derived-op ] each
+
+generic-comparison-ops [
+    dup specific-comparison
+    '[ , , define-comparison-constraints ] each-derived-op
+] each
+
+! Remove redundant comparisons
+: fold-comparison ( info1 info2 word -- info )
+    [ [ interval>> ] bi@ ] dip interval-comparison {
+        { incomparable [ object-info ] }
+        { t [ t <literal-info> ] }
+        { f [ f <literal-info> ] }
+    } case ;
+
+comparison-ops [
+    dup '[
+        [ , fold-comparison ] "outputs" set-word-prop
+    ] each-derived-op
+] each
+
+generic-comparison-ops [
+    dup specific-comparison
+    '[ , fold-comparison ] "outputs" set-word-prop
+] each
+
+: maybe-or-never ( ? -- info )
+    [ object-info ] [ f <literal-info> ] if ;
+
+: info-intervals-intersect? ( info1 info2 -- ? )
+    [ interval>> ] bi@ intervals-intersect? ;
+
+{ number= bignum= float= } [
+    [
+        info-intervals-intersect? maybe-or-never
+    ] "outputs" set-word-prop
+] each
+
+: info-classes-intersect? ( info1 info2 -- ? )
+    [ class>> ] bi@ classes-intersect? ;
+
+\ eq? [
+    over value-info literal>> fixnum? [
+        [ value-info literal>> is-equal-to ] dip t-->
+    ] [ 3drop f ] if
+] "constraints" set-word-prop
+
+\ eq? [
+    [ info-intervals-intersect? ]
+    [ info-classes-intersect? ]
+    2bi and maybe-or-never
+] "outputs" set-word-prop
+
+{
+    { >fixnum fixnum }
+    { >bignum bignum }
+    { >float float }
+} [
+    '[
+        ,
+        [ nip ] [
+            [ interval>> ] [ class-interval ] bi*
+            interval-intersect
+        ] 2bi
+        <class/interval-info>
+    ] "outputs" set-word-prop
+] assoc-each
+
+{
+    alien-signed-1
+    alien-unsigned-1
+    alien-signed-2
+    alien-unsigned-2
+    alien-signed-4
+    alien-unsigned-4
+    alien-signed-8
+    alien-unsigned-8
+} [
+    dup name>> {
+        {
+            [ "alien-signed-" ?head ]
+            [ string>number 8 * 1- 2^ dup neg swap 1- [a,b] ]
+        }
+        {
+            [ "alien-unsigned-" ?head ]
+            [ string>number 8 * 2^ 1- 0 swap [a,b] ]
+        }
+    } cond
+    [ fixnum fits? fixnum integer ? ] keep <class/interval-info>
+    [ 2nip ] curry "outputs" set-word-prop
+] each
+
+{ <tuple> <tuple-boa> (tuple) } [
+    [
+        literal>> dup tuple-layout? [ class>> ] [ drop tuple ] if <class-info>
+        [ clear ] dip
+    ] "outputs" set-word-prop
+] each
+
+\ new [
+    literal>> dup tuple-class? [ drop tuple ] unless <class-info>
+] "outputs" set-word-prop
+
+! the output of clone has the same type as the input
+{ clone (clone) } [
+    [ clone f >>literal f >>literal? ]
+    "outputs" set-word-prop
+] each
+
+\ slot [
+    dup literal?>>
+    [ literal>> swap value-info-slot ] [ 2drop object-info ] if
+] "outputs" set-word-prop
+
+\ instance? [
+    [ value-info ] dip over literal>> class? [
+        [ literal>> ] dip predicate-constraints
+    ] [ 3drop f ] if
+] "constraints" set-word-prop
+
+\ instance? [
+    ! We need to force the caller word to recompile when the class
+    ! is redefined, since now we're making assumptions but the
+    ! class definition itself.
+    dup literal>> class?
+    [
+        literal>>
+        [ inlined-dependency depends-on ]
+        [ predicate-output-infos ]
+        bi
+    ] [ 2drop object-info ] if
+] "outputs" set-word-prop
diff --git a/basis/compiler/tree/propagation/nodes/nodes.factor b/basis/compiler/tree/propagation/nodes/nodes.factor
new file mode 100644
index 0000000000..9e4d99e462
--- /dev/null
+++ b/basis/compiler/tree/propagation/nodes/nodes.factor
@@ -0,0 +1,33 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences accessors kernel assocs sequences
+compiler.tree
+compiler.tree.propagation.copy
+compiler.tree.propagation.info ;
+IN: compiler.tree.propagation.nodes
+
+GENERIC: propagate-before ( node -- )
+
+GENERIC: propagate-after ( node -- )
+
+GENERIC: annotate-node ( node -- )
+
+GENERIC: propagate-around ( node -- )
+
+: (propagate) ( node -- )
+    [ [ compute-copy-equiv ] [ propagate-around ] bi ] each ;
+
+: extract-value-info ( values -- assoc )
+    [ dup value-info ] H{ } map>assoc ;
+
+: (annotate-node) ( node values -- )
+    extract-value-info >>info drop ; inline
+
+M: node propagate-before drop ;
+
+M: node propagate-after drop ;
+
+M: node annotate-node drop ;
+
+M: node propagate-around
+    [ propagate-before ] [ annotate-node ] [ propagate-after ] tri ;
diff --git a/basis/compiler/tree/propagation/propagation-tests.factor b/basis/compiler/tree/propagation/propagation-tests.factor
new file mode 100644
index 0000000000..f04460f32a
--- /dev/null
+++ b/basis/compiler/tree/propagation/propagation-tests.factor
@@ -0,0 +1,606 @@
+USING: kernel compiler.tree.builder compiler.tree
+compiler.tree.propagation
+compiler.tree.normalization tools.test math math.order
+accessors sequences arrays kernel.private vectors
+alien.accessors alien.c-types sequences.private
+byte-arrays classes.algebra classes.tuple.private
+math.functions math.private strings layouts
+compiler.tree.propagation.info compiler.tree.def-use
+compiler.tree.checker slots.private words hashtables
+classes assocs ;
+IN: compiler.tree.propagation.tests
+
+\ propagate must-infer
+
+: final-info ( quot -- seq )
+    build-tree
+    normalize
+    propagate
+    compute-def-use
+    dup check-nodes
+    peek node-input-infos ;
+
+: final-classes ( quot -- seq )
+    final-info [ class>> ] map ;
+
+: final-literals ( quot -- seq )
+    final-info [ literal>> ] map ;
+
+[ V{ } ] [ [ ] final-classes ] unit-test
+
+[ V{ fixnum } ] [ [ 1 ] final-classes ] unit-test
+
+[ V{ fixnum } ] [ [ 1 >r r> ] final-classes ] unit-test
+
+[ V{ fixnum object } ] [ [ 1 swap ] final-classes ] unit-test
+
+[ V{ array } ] [ [ 10 f <array> ] final-classes ] unit-test
+
+[ V{ array } ] [ [ { array } declare ] final-classes ] unit-test
+
+[ V{ array } ] [ [ 10 f <array> swap [ ] [ ] if ] final-classes ] unit-test
+
+[ V{ fixnum } ] [ [ dup fixnum? [ ] [ drop 3 ] if ] final-classes ] unit-test
+
+[ V{ 69 } ] [ [ [ 69 ] [ 69 ] if ] final-literals ] unit-test
+
+[ V{ fixnum } ] [ [ { fixnum } declare bitnot ] final-classes ] unit-test
+
+[ V{ number } ] [ [ + ] final-classes ] unit-test
+
+[ V{ float } ] [ [ { float integer } declare + ] final-classes ] unit-test
+
+[ V{ float } ] [ [ /f ] final-classes ] unit-test
+
+[ V{ integer } ] [ [ /i ] final-classes ] unit-test
+
+[ V{ integer } ] [
+    [ { integer } declare bitnot ] final-classes
+] unit-test
+
+[ V{ integer } ] [ [ 255 bitand ] final-classes ] unit-test
+
+[ V{ integer } ] [
+    [ [ 255 bitand ] [ 65535 bitand ] bi + ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [
+        { fixnum } declare [ 255 bitand ] [ 65535 bitand ] bi +
+    ] final-classes
+] unit-test
+
+[ V{ integer } ] [
+    [ { fixnum } declare [ 255 bitand ] keep + ] final-classes
+] unit-test
+
+[ V{ integer } ] [
+    [ { fixnum } declare 615949 * ] final-classes
+] unit-test
+
+[ V{ null } ] [
+    [ { null null } declare + ] final-classes
+] unit-test
+
+[ V{ null } ] [
+    [ { null fixnum } declare + ] final-classes
+] unit-test
+
+[ V{ float } ] [
+    [ { float fixnum } declare + ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ 255 bitand >fixnum 3 bitor ] final-classes
+] unit-test
+
+[ V{ 0 } ] [
+    [ >fixnum 1 mod ] final-literals
+] unit-test
+
+[ V{ 69 } ] [
+    [ >fixnum swap [ 1 mod 69 + ] [ drop 69 ] if ] final-literals
+] unit-test
+
+[ V{ fixnum } ] [
+    [ >fixnum dup 10 > [ 1 - ] when ] final-classes
+] unit-test
+
+[ V{ integer } ] [ [ >fixnum 2 * ] final-classes ] unit-test
+
+[ V{ integer } ] [
+    [ >fixnum dup 10 < drop 2 * ] final-classes
+] unit-test
+
+[ V{ integer } ] [
+    [ >fixnum dup 10 < [ 2 * ] when ] final-classes
+] unit-test
+
+[ V{ integer } ] [
+    [ >fixnum dup 10 < [ 2 * ] [ 2 * ] if ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ >fixnum dup 10 < [ dup -10 > [ 2 * ] when ] when ] final-classes
+] unit-test
+
+[ V{ f } ] [
+    [ dup 10 < [ dup 8 > [ drop 9 ] unless ] [ drop 9 ] if ] final-literals
+] unit-test
+
+[ V{ 9 } ] [
+    [
+        123 bitand
+        dup 10 < [ dup 8 > [ drop 9 ] unless ] [ drop 9 ] if
+    ] final-literals
+] unit-test
+
+[ V{ string } ] [
+    [ dup string? not [ "Oops" throw ] [ ] if ] final-classes
+] unit-test
+
+[ V{ string } ] [
+    [ dup string? not not >boolean [ ] [ "Oops" throw ] if ] final-classes
+] unit-test
+
+[ f ] [ [ t xor ] final-classes first null-class? ] unit-test
+
+[ t ] [ [ t or ] final-classes first true-class? ] unit-test
+
+[ t ] [ [ t swap or ] final-classes first true-class? ] unit-test
+
+[ t ] [ [ f and ] final-classes first false-class? ] unit-test
+
+[ t ] [ [ f swap and ] final-classes first false-class? ] unit-test
+
+[ t ] [ [ dup not or ] final-classes first true-class? ] unit-test
+
+[ t ] [ [ dup not swap or ] final-classes first true-class? ] unit-test
+
+[ t ] [ [ dup not and ] final-classes first false-class? ] unit-test
+
+[ t ] [ [ dup not swap and ] final-classes first false-class? ] unit-test
+
+[ t ] [ [ over [ drop f ] when [ "A" throw ] unless ] final-classes first false-class? ] unit-test
+
+[ V{ fixnum } ] [
+    [
+        >fixnum
+        dup [ 10 < ] [ -10 > ] bi and not [ 2 * ] unless
+    ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ { fixnum } declare (clone) ] final-classes
+] unit-test
+
+[ V{ vector } ] [
+    [ vector new ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [
+        [ uchar-nth ] 2keep [ uchar-nth ] 2keep uchar-nth
+        >r >r 298 * r> 100 * - r> 208 * - 128 + -8 shift
+        255 min 0 max
+    ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ 0 dup 10 > [ 2 * ] when ] final-classes
+] unit-test
+
+[ V{ f } ] [
+    [ [ 0.0 ] [ -0.0 ] if ] final-literals
+] unit-test
+
+[ V{ 1.5 } ] [
+    [ /f 1.5 min 1.5 max ] final-literals
+] unit-test
+
+[ V{ 1.5 } ] [
+    [
+        /f
+        dup 1.5 <= [ dup 1.5 >= [ ] [ drop 1.5 ] if ] [ drop 1.5 ] if
+    ] final-literals
+] unit-test
+
+[ V{ 1.5 } ] [
+    [
+        /f
+        dup 1.5 <= [ dup 10 >= [ ] [ drop 1.5 ] if ] [ drop 1.5 ] if
+    ] final-literals
+] unit-test
+
+[ V{ f } ] [
+    [
+        /f
+        dup 0.0 <= [ dup 0.0 >= [ drop 0.0 ] unless ] [ drop 0.0 ] if
+    ] final-literals
+] unit-test
+
+[ V{ fixnum } ] [
+    [ 0 dup 10 > [ 100 * ] when ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ 0 dup 10 > [ drop "foo" ] when ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ { fixnum } declare 3 3 - + ] final-classes
+] unit-test
+
+[ V{ t } ] [
+    [ dup 10 < [ 3 * 30 < ] [ drop t ] if ] final-literals
+] unit-test
+
+[ V{ "d" } ] [
+    [
+        3 {
+            [ "a" ]
+            [ "b" ]
+            [ "c" ]
+            [ "d" ]
+            [ "e" ]
+            [ "f" ]
+            [ "g" ]
+            [ "h" ]
+        } dispatch
+    ] final-literals
+] unit-test
+
+[ V{ "hi" } ] [
+    [ [ "hi" ] [ 123 3 throw ] if ] final-literals
+] unit-test
+
+[ V{ fixnum } ] [
+    [ >fixnum dup 100 < [ 1+ ] [ "Oops" throw ] if ] final-classes
+] unit-test
+
+[ V{ -1 } ] [
+    [ 0 dup 100 < not [ 1+ ] [ 1- ] if ] final-literals
+] unit-test
+
+[ V{ 2 } ] [
+    [ [ 1 ] [ 1 ] if 1 + ] final-literals
+] unit-test
+
+[ V{ object } ] [
+    [ 0 * 10 < ] final-classes
+] unit-test
+
+[ V{ 27 } ] [
+    [
+        123 bitand dup 10 < over 8 > and [ 3 * ] [ "B" throw ] if
+    ] final-literals
+] unit-test
+
+[ V{ 27 } ] [
+    [
+        dup number? over sequence? and [
+            dup 10 < over 8 <= not and [ 3 * ] [ "A" throw ] if
+        ] [ "B" throw ] if
+    ] final-literals
+] unit-test
+
+[ V{ string string } ] [
+    [
+        2dup [ dup string? [ "Oops" throw ] unless ] bi@ 2drop
+    ] final-classes
+] unit-test
+
+[ V{ float } ] [
+    [ { real float } declare + ] final-classes
+] unit-test
+
+[ V{ float } ] [
+    [ { float real } declare + ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ { fixnum fixnum } declare 7 bitand neg shift ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ { fixnum } declare 1 swap 7 bitand shift ] final-classes
+] unit-test
+
+cell-bits 32 = [
+    [ V{ integer } ] [
+        [ { fixnum } declare 1 swap 31 bitand shift ]
+        final-classes
+    ] unit-test
+] when
+
+! Array length propagation
+[ V{ t } ] [ [ 10 f <array> length 10 = ] final-literals ] unit-test
+
+[ V{ t } ] [ [ [ 10 f <array> length ] [ 10 <byte-array> length ] if 10 = ] final-literals ] unit-test
+
+[ V{ t } ] [ [ [ 1 f <array> ] [ 2 f <array> ] if length 3 < ] final-literals ] unit-test
+
+[ V{ 10 } ] [
+    [ { fixnum } declare dup 10 eq? [ "A" throw ] unless ] final-literals
+] unit-test
+
+! Slot propagation
+TUPLE: prop-test-tuple { x integer } ;
+
+[ V{ integer } ] [ [ { prop-test-tuple } declare x>> ] final-classes ] unit-test
+
+TUPLE: fold-boa-test-tuple { x read-only } { y read-only } { z read-only } ;
+
+[ V{ T{ fold-boa-test-tuple f 1 2 3 } } ]
+[ [ 1 2 3 fold-boa-test-tuple boa ] final-literals ]
+unit-test
+
+TUPLE: immutable-prop-test-tuple { x sequence read-only } ;
+
+[ V{ T{ immutable-prop-test-tuple f "hey" } } ] [
+    [ "hey" immutable-prop-test-tuple boa ] final-literals
+] unit-test
+
+[ V{ { 1 2 } } ] [
+    [ { 1 2 } immutable-prop-test-tuple boa x>> ] final-literals
+] unit-test
+
+[ V{ array } ] [
+    [ { array } declare immutable-prop-test-tuple boa x>> ] final-classes
+] unit-test
+
+[ V{ complex } ] [
+    [ <complex> ] final-classes
+] unit-test
+
+[ V{ complex } ] [
+    [ { float float } declare dup 0.0 <= [ "Oops" throw ] [ rect> ] if ] final-classes
+] unit-test
+
+[ V{ float float } ] [
+    [
+        { float float } declare
+        dup 0.0 <= [ "Oops" throw ] when rect>
+        [ real>> ] [ imaginary>> ] bi
+    ] final-classes
+] unit-test
+
+[ V{ complex } ] [
+    [
+        { float float object } declare
+        [ "Oops" throw ] [ <complex> ] if
+    ] final-classes
+] unit-test
+
+[ ] [ [ dup 3 slot swap 4 slot dup 3 slot swap 4 slot ] final-info drop ] unit-test
+
+[ V{ number } ] [ [ [ "Oops" throw ] [ 2 + ] if ] final-classes ] unit-test
+[ V{ number } ] [ [ [ 2 + ] [ "Oops" throw ] if ] final-classes ] unit-test
+
+[ V{ POSTPONE: f } ] [
+    [ dup 1.0 <= [ drop f ] [ 0 number= ] if ] final-classes
+] unit-test
+
+! Don't fold this
+TUPLE: mutable-tuple-test { x sequence } ;
+
+[ V{ sequence } ] [
+    [ "hey" mutable-tuple-test boa x>> ] final-classes
+] unit-test
+
+[ V{ sequence } ] [
+    [ T{ mutable-tuple-test f "hey" } x>> ] final-classes
+] unit-test
+
+[ V{ tuple-layout } ] [
+    [ T{ mutable-tuple-test f "hey" } layout-of ] final-classes
+] unit-test
+
+! Mixed mutable and immutable slots
+TUPLE: mixed-mutable-immutable { x integer } { y sequence read-only } ;
+
+[ V{ integer array } ] [
+    [
+        3 { 2 1 } mixed-mutable-immutable boa [ x>> ] [ y>> ] bi
+    ] final-classes
+] unit-test
+
+[ V{ array integer } ] [
+    [
+        3 { 2 1 } mixed-mutable-immutable boa [ y>> ] [ x>> ] bi
+    ] final-classes
+] unit-test
+
+[ V{ integer array } ] [
+    [
+        [ 2drop T{ mixed-mutable-immutable f 3 { } } ]
+        [ { array } declare mixed-mutable-immutable boa ] if
+        [ x>> ] [ y>> ] bi
+    ] final-classes
+] unit-test
+
+! Recursive propagation
+: recursive-test-1 ( a -- b ) recursive-test-1 ; inline recursive
+
+[ V{ null } ] [ [ recursive-test-1 ] final-classes ] unit-test
+
+: recursive-test-2 ( a -- b ) dup 10 < [ recursive-test-2 ] when ; inline recursive
+
+[ V{ real } ] [ [ recursive-test-2 ] final-classes ] unit-test
+
+: recursive-test-3 ( a -- b ) dup 10 < drop ; inline recursive
+
+[ V{ real } ] [ [ recursive-test-3 ] final-classes ] unit-test
+
+[ V{ real } ] [ [ [ dup 10 < ] [ ] [ ] while ] final-classes ] unit-test
+
+[ V{ float } ] [
+    [ { float } declare 10 [ 2.3 * ] times ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ 0 10 [ nip ] each-integer ] final-classes
+] unit-test
+
+[ V{ t } ] [
+    [ t 10 [ nip 0 >= ] each-integer ] final-literals
+] unit-test
+
+: recursive-test-4 ( i n -- )
+    2dup < [ >r 1+ r> recursive-test-4 ] [ 2drop ] if ; inline recursive
+
+[ ] [ [ recursive-test-4 ] final-info drop ] unit-test
+
+: recursive-test-5 ( a -- b )
+    dup 1 <= [ drop 1 ] [ dup 1 - recursive-test-5 * ] if ; inline recursive
+
+[ V{ integer } ] [ [ { integer } declare recursive-test-5 ] final-classes ] unit-test
+
+: recursive-test-6 ( a -- b )
+    dup 1 <= [ drop 1 ] [ dup 1 - recursive-test-6 swap 2 - recursive-test-6 + ] if ; inline recursive
+
+[ V{ integer } ] [ [ { fixnum } declare recursive-test-6 ] final-classes ] unit-test
+
+: recursive-test-7 ( a -- b )
+    dup 10 < [ 1+ recursive-test-7 ] when ; inline recursive
+
+[ V{ fixnum } ] [ [ 0 recursive-test-7 ] final-classes ] unit-test
+
+[ V{ fixnum } ] [ [ 1 10 [ dup 10 < [ 2 * ] when ] times ] final-classes ] unit-test
+
+[ V{ integer } ] [ [ 0 2 100 ^ [ nip ] each-integer ] final-classes ] unit-test
+
+[ ] [ [ [ ] [ ] compose curry call ] final-info drop ] unit-test
+
+[ V{ } ] [
+    [ [ drop ] [ drop ] compose curry (each-integer) ] final-classes
+] unit-test
+
+GENERIC: iterate ( obj -- next-obj ? )
+M: fixnum iterate f ;
+M: array iterate first t ;
+
+: dead-loop ( obj -- final-obj )
+    iterate [ dead-loop ] when ; inline recursive
+
+[ V{ fixnum } ] [ [ { fixnum } declare dead-loop ] final-classes ] unit-test
+
+: hang-1 ( m -- x )
+    dup 0 number= [ hang-1 ] unless ; inline recursive
+
+[ ] [ [ 3 hang-1 ] final-info drop ] unit-test
+
+: hang-2 ( m n -- x )
+    over 0 number= [
+        nip
+    ] [
+        dup [
+            drop 1 hang-2
+        ] [
+            dupd hang-2 hang-2
+        ] if
+    ] if ; inline recursive
+
+[ ] [ [ 3 over hang-2 ] final-info drop ] unit-test
+
+[ ] [
+    [
+        dup fixnum? [ 3 over hang-2 ] [ 3 over hang-2 ] if
+    ] final-info drop
+] unit-test
+
+[ V{ word } ] [
+    [ { hashtable } declare hashtable instance? ] final-classes
+] unit-test
+
+[ V{ POSTPONE: f } ] [
+    [ { vector } declare hashtable instance? ] final-classes
+] unit-test
+
+[ V{ object } ] [
+    [ { assoc } declare hashtable instance? ] final-classes
+] unit-test
+
+[ V{ word } ] [
+    [ { string } declare string? ] final-classes
+] unit-test
+
+[ V{ POSTPONE: f } ] [
+    [ 3 string? ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ { fixnum } declare [ ] curry obj>> ] final-classes
+] unit-test
+
+[ V{ fixnum } ] [
+    [ { fixnum fixnum } declare [ nth-unsafe ] curry call ] final-classes
+] unit-test
+
+[ V{ f } ] [
+    [ 10 eq? [ drop 3 ] unless ] final-literals
+] unit-test
+
+GENERIC: bad-generic ( a -- b )
+M: fixnum bad-generic 1 fixnum+fast ;
+: bad-behavior ( -- b ) 4 bad-generic ; inline recursive
+
+[ V{ fixnum } ] [ [ bad-behavior ] final-classes ] unit-test
+
+[ V{ number } ] [
+    [
+        0 10 [ bad-generic dup 123 bitand drop bad-generic 1 + ] times
+    ] final-classes
+] unit-test
+
+GENERIC: infinite-loop ( a -- b )
+M: integer infinite-loop infinite-loop ;
+
+[ ] [ [ { integer } declare infinite-loop ] final-classes drop ] unit-test
+
+[ V{ tuple } ] [ [ tuple-layout <tuple> ] final-classes ] unit-test
+
+[ ] [ [ instance? ] final-classes drop ] unit-test
+
+[ f ] [ [ V{ } clone ] final-info first literal?>> ] unit-test
+
+: fold-throw-test ( a -- b ) "A" throw ; foldable
+
+[ ] [ [ 0 fold-throw-test ] final-info drop ] unit-test
+
+: too-deep ( a b -- c )
+    dup [ drop ] [ 2dup too-deep too-deep * ] if ; inline recursive
+
+[ ] [ [ too-deep ] final-info drop ] unit-test
+
+[ ] [ [ reversed boa slice boa nth-unsafe * ] final-info drop ] unit-test
+
+MIXIN: empty-mixin
+
+[ ] [ [ { empty-mixin } declare empty-mixin? ] final-info drop ] unit-test
+
+[ V{ fixnum } ] [ [ [ bignum-shift drop ] keep ] final-classes ] unit-test
+
+[ V{ float } ] [
+    [
+        [ { float float } declare <complex> ]
+        [ 2drop C{ 0.0 0.0 } ]
+        if real-part
+    ] final-classes
+] unit-test
+
+[ V{ POSTPONE: f } ] [
+    [ { float } declare 0 eq? ] final-classes
+] unit-test
+
+! [ V{ string } ] [
+!     [ dup string? t xor [ "A" throw ] [ ] if ] final-classes
+! ] unit-test
+
+! [ t ] [ [ dup t xor or ] final-classes first true-class? ] unit-test
+
+! [ t ] [ [ dup t xor swap or ] final-classes first true-class? ] unit-test
+
+! [ t ] [ [ dup t xor and ] final-classes first false-class? ] unit-test
+
+! [ t ] [ [ dup t xor swap and ] final-classes first false-class? ] unit-test
diff --git a/basis/compiler/tree/propagation/propagation.factor b/basis/compiler/tree/propagation/propagation.factor
new file mode 100755
index 0000000000..f184418d43
--- /dev/null
+++ b/basis/compiler/tree/propagation/propagation.factor
@@ -0,0 +1,21 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel sequences namespaces hashtables
+compiler.tree
+compiler.tree.propagation.copy
+compiler.tree.propagation.info
+compiler.tree.propagation.nodes
+compiler.tree.propagation.simple
+compiler.tree.propagation.branches
+compiler.tree.propagation.recursive
+compiler.tree.propagation.constraints
+compiler.tree.propagation.known-words ;
+IN: compiler.tree.propagation
+
+! This pass must run after normalization
+
+: propagate ( node -- node )
+    H{ } clone copies set
+    H{ } clone constraints set
+    H{ } clone value-infos set
+    dup (propagate) ;
diff --git a/basis/compiler/tree/propagation/recursive/recursive-tests.factor b/basis/compiler/tree/propagation/recursive/recursive-tests.factor
new file mode 100644
index 0000000000..cf72a2a135
--- /dev/null
+++ b/basis/compiler/tree/propagation/recursive/recursive-tests.factor
@@ -0,0 +1,19 @@
+IN: compiler.tree.propagation.recursive.tests
+USING: tools.test compiler.tree.propagation.recursive
+math.intervals kernel ;
+
+[ T{ interval f { 0 t } { 1/0. t } } ] [
+    T{ interval f { 1 t } { 1 t } }
+    T{ interval f { 0 t } { 0 t } } generalize-counter-interval
+] unit-test
+
+[ T{ interval f { -1/0. t } { 10 t } } ] [
+    T{ interval f { -1 t } { -1 t } }
+    T{ interval f { 10 t } { 10 t } } generalize-counter-interval
+] unit-test
+
+[ t ] [
+    T{ interval f { 1 t } { 268435455 t } }
+    T{ interval f { -268435456 t } { 268435455 t } } tuck
+    generalize-counter-interval =
+] unit-test
diff --git a/basis/compiler/tree/propagation/recursive/recursive.factor b/basis/compiler/tree/propagation/recursive/recursive.factor
new file mode 100644
index 0000000000..649eaa763e
--- /dev/null
+++ b/basis/compiler/tree/propagation/recursive/recursive.factor
@@ -0,0 +1,86 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences accessors arrays fry math.intervals
+combinators namespaces
+stack-checker.inlining
+compiler.tree
+compiler.tree.combinators
+compiler.tree.propagation.copy
+compiler.tree.propagation.info
+compiler.tree.propagation.nodes
+compiler.tree.propagation.simple
+compiler.tree.propagation.branches
+compiler.tree.propagation.constraints ;
+IN: compiler.tree.propagation.recursive
+
+: check-fixed-point ( node infos1 infos2 -- )
+    [ value-info<= ] 2all?
+    [ drop ] [ label>> f >>fixed-point drop ] if ;
+
+: recursive-stacks ( #enter-recursive -- stacks initial )
+    [ label>> calls>> [ node-input-infos ] map flip ]
+    [ in-d>> [ value-info ] map ] bi ;
+
+: generalize-counter-interval ( interval initial-interval -- interval' )
+    {
+        { [ 2dup interval-subset? ] [ empty-interval ] }
+        { [ over empty-interval eq? ] [ empty-interval ] }
+        { [ 2dup interval>= t eq? ] [ 1./0. [a,a] ] }
+        { [ 2dup interval<= t eq? ] [ -1./0. [a,a] ] }
+        [ [-inf,inf] ]
+    } cond interval-union nip ;
+
+: generalize-counter ( info' initial -- info )
+    2dup [ class>> null-class? ] either? [ drop ] [
+        [ drop clone ] [ [ interval>> ] bi@ ] 2bi
+        generalize-counter-interval >>interval
+    ] if ;
+
+: unify-recursive-stacks ( stacks initial -- infos )
+    over empty? [ nip ] [
+        [
+            [ value-infos-union ] dip
+            [ generalize-counter ] keep
+            value-info-union
+        ] 2map
+    ] if ;
+
+: propagate-recursive-phi ( #enter-recursive -- )
+    [ ] [ recursive-stacks unify-recursive-stacks ] [ ] tri
+    [ node-output-infos check-fixed-point ]
+    [ out-d>> set-value-infos drop ]
+    3bi ;
+
+M: #recursive propagate-around ( #recursive -- )
+    [
+        constraints [ clone ] change
+
+        child>>
+        [ first compute-copy-equiv ]
+        [ first propagate-recursive-phi ]
+        [ (propagate) ]
+        tri
+    ] until-fixed-point ;
+
+: generalize-return-interval ( info -- info' )
+    dup [ literal?>> ] [ class>> null-class? ] bi or
+    [ clone [-inf,inf] >>interval ] unless ;
+
+: generalize-return ( infos -- infos' )
+    [ generalize-return-interval ] map ;
+
+: return-infos ( node -- infos )
+    label>> return>> node-input-infos generalize-return ;
+
+M: #call-recursive propagate-before ( #call-recursive -- )
+    [ ] [ return-infos ] [ node-output-infos ] tri
+    [ check-fixed-point ] [ drop swap out-d>> set-value-infos ] 3bi ;
+
+M: #call-recursive annotate-node
+    dup [ in-d>> ] [ out-d>> ] bi append (annotate-node) ;
+
+M: #enter-recursive annotate-node
+    dup out-d>> (annotate-node) ;
+
+M: #return-recursive annotate-node
+    dup in-d>> (annotate-node) ;
diff --git a/basis/compiler/tree/propagation/simple/simple.factor b/basis/compiler/tree/propagation/simple/simple.factor
new file mode 100644
index 0000000000..809a85a51f
--- /dev/null
+++ b/basis/compiler/tree/propagation/simple/simple.factor
@@ -0,0 +1,135 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry accessors kernel sequences sequences.private assocs words
+namespaces classes.algebra combinators classes classes.tuple
+classes.tuple.private continuations arrays
+math math.private slots generic definitions
+stack-checker.state
+compiler.tree
+compiler.tree.propagation.info
+compiler.tree.propagation.nodes
+compiler.tree.propagation.slots
+compiler.tree.propagation.inlining
+compiler.tree.propagation.constraints ;
+IN: compiler.tree.propagation.simple
+
+! Propagation for straight-line code.
+
+M: #introduce propagate-before
+    out-d>> [ object-info swap set-value-info ] each ;
+
+M: #push propagate-before
+    [ literal>> <literal-info> ] [ out-d>> first ] bi
+    set-value-info ;
+
+: refine-value-infos ( classes values -- )
+    [ refine-value-info ] 2each ;
+
+: class-infos ( classes -- infos )
+    [ <class-info> ] map ;
+
+: set-value-infos ( infos values -- )
+    [ set-value-info ] 2each ;
+
+M: #declare propagate-before
+    #! We need to force the caller word to recompile when the
+    #! classes mentioned in the declaration are redefined, since
+    #! now we're making assumptions but their definitions.
+    declaration>> [
+        [ inlined-dependency depends-on ]
+        [ <class-info> swap refine-value-info ]
+        bi
+    ] assoc-each ;
+
+: predicate-constraints ( value class boolean-value -- constraint )
+    [ [ is-instance-of ] dip t--> ]
+    [ [ class-not is-instance-of ] dip f--> ]
+    3bi /\ ;
+
+: custom-constraints ( #call quot -- )
+    [ [ in-d>> ] [ out-d>> ] bi append ] dip
+    with-datastack first assume ;
+
+: compute-constraints ( #call word -- )
+    dup "constraints" word-prop [ nip custom-constraints ] [
+        dup predicate? [
+            [ [ in-d>> first ] [ out-d>> first ] bi ]
+            [ "predicating" word-prop ] bi*
+            swap predicate-constraints assume
+        ] [ 2drop ] if
+    ] if* ;
+
+: call-outputs-quot ( #call word -- infos )
+    [ in-d>> [ value-info ] map ] [ "outputs" word-prop ] bi*
+    with-datastack ;
+
+: foldable-call? ( #call word -- ? )
+    "foldable" word-prop
+    [ in-d>> [ value-info literal?>> ] all? ] [ drop f ] if ;
+
+: (fold-call) ( #call word -- info )
+    [ [ out-d>> ] [ in-d>> [ value-info literal>> ] map ] bi ] [ '[ , execute ] ] bi*
+    '[ , , with-datastack [ <literal-info> ] map nip ]
+    [ drop [ object-info ] replicate ]
+    recover ;
+
+: fold-call ( #call word -- )
+    [ (fold-call) ] [ drop out-d>> ] 2bi set-value-infos ;
+
+: predicate-output-infos ( info class -- info )
+    [ class>> ] dip {
+        { [ 2dup class<= ] [ t <literal-info> ] }
+        { [ 2dup classes-intersect? not ] [ f <literal-info> ] }
+        [ object-info ]
+    } cond 2nip ;
+
+: propagate-predicate ( #call word -- infos )
+    #! We need to force the caller word to recompile when the class
+    #! is redefined, since now we're making assumptions but the
+    #! class definition itself.
+    [ in-d>> first value-info ]
+    [ "predicating" word-prop dup inlined-dependency depends-on ] bi*
+    predicate-output-infos 1array ;
+
+: default-output-value-infos ( #call word -- infos )
+    "default-output-classes" word-prop
+    [ class-infos ] [ out-d>> length object-info <repetition> ] ?if ;
+
+: output-value-infos ( #call word -- infos )
+    {
+        { [ dup tuple-constructor? ] [ propagate-tuple-constructor ] }
+        { [ dup sequence-constructor? ] [ propagate-sequence-constructor ] }
+        { [ dup predicate? ] [ propagate-predicate ] }
+        { [ dup "outputs" word-prop ] [ call-outputs-quot ] }
+        [ default-output-value-infos ]
+    } cond ;
+
+M: #call propagate-before
+    dup word>> {
+        { [ 2dup foldable-call? ] [ fold-call ] }
+        { [ 2dup do-inlining ] [ 2drop ] }
+        [
+            [ [ output-value-infos ] [ drop out-d>> ] 2bi set-value-infos ]
+            [ compute-constraints ]
+            2bi
+        ]
+    } cond ;
+
+M: #call annotate-node
+    dup [ in-d>> ] [ out-d>> ] bi append (annotate-node) ;
+
+: propagate-input-classes ( node input-classes -- )
+    class-infos swap in-d>> refine-value-infos ;
+
+M: #call propagate-after
+    dup word>> "input-classes" word-prop dup
+    [ propagate-input-classes ] [ 2drop ] if ;
+
+M: #alien-invoke propagate-before
+    out-d>> [ object-info swap set-value-info ] each ;
+
+M: #alien-indirect propagate-before
+    out-d>> [ object-info swap set-value-info ] each ;
+
+M: #return annotate-node
+    dup in-d>> (annotate-node) ;
diff --git a/basis/compiler/tree/propagation/slots/slots.factor b/basis/compiler/tree/propagation/slots/slots.factor
new file mode 100644
index 0000000000..08a8520d0a
--- /dev/null
+++ b/basis/compiler/tree/propagation/slots/slots.factor
@@ -0,0 +1,76 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry assocs arrays byte-arrays strings accessors sequences
+kernel slots classes.algebra classes.tuple classes.tuple.private
+words math math.private combinators sequences.private namespaces
+slots.private classes compiler.tree.propagation.info ;
+IN: compiler.tree.propagation.slots
+
+! Propagation of immutable slots and array lengths
+
+! Revisit this code when delegation is removed and when complex
+! numbers become tuples.
+
+UNION: fixed-length-sequence array byte-array string ;
+
+: sequence-constructor? ( word -- ? )
+    { <array> <byte-array> <string> } memq? ;
+
+: constructor-output-class ( word -- class )
+    {
+        { <array> array }
+        { <byte-array> byte-array }
+        { <string> string }
+    } at ;
+
+: propagate-sequence-constructor ( #call word -- infos )
+    [ in-d>> first <sequence-info> ]
+    [ constructor-output-class <class-info> ]
+    bi* value-info-intersect 1array ;
+
+: tuple-constructor? ( word -- ? )
+    { <tuple-boa> <complex> } memq? ;
+
+: fold-<tuple-boa> ( values class -- info )
+    [ [ literal>> ] map ] dip prefix >tuple
+    <literal-info> ;
+
+: (propagate-tuple-constructor) ( values class -- info )
+    [ [ value-info ] map ] dip [ read-only-slots ] keep
+    over rest-slice [ dup [ literal?>> ] when ] all? [
+        [ rest-slice ] dip fold-<tuple-boa>
+    ] [
+        <tuple-info>
+    ] if ;
+
+: propagate-<tuple-boa> ( #call -- info )
+    in-d>> unclip-last
+    value-info literal>> class>> (propagate-tuple-constructor) ;
+
+: propagate-<complex> ( #call -- info )
+    in-d>> [ value-info ] map complex <tuple-info> ;
+
+: propagate-tuple-constructor ( #call word -- infos )
+    {
+        { \ <tuple-boa> [ propagate-<tuple-boa> ] }
+        { \ <complex> [ propagate-<complex> ] }
+    } case 1array ;
+
+: read-only-slot? ( n class -- ? )
+    all-slots [ offset>> = ] with find nip
+    dup [ read-only>> ] when ;
+
+: literal-info-slot ( slot object -- info/f )
+    2dup class read-only-slot?
+    [ swap slot <literal-info> ] [ 2drop f ] if ;
+
+: length-accessor? ( slot info -- ? )
+    [ 1 = ] [ length>> ] bi* and ;
+
+: value-info-slot ( slot info -- info' )
+    {
+        { [ over 0 = ] [ 2drop fixnum <class-info> ] }
+        { [ 2dup length-accessor? ] [ nip length>> ] }
+        { [ dup literal?>> ] [ literal>> literal-info-slot ] }
+        [ [ 1- ] [ slots>> ] bi* ?nth ]
+    } cond [ object-info ] unless* ;
diff --git a/basis/compiler/tree/propagation/summary.txt b/basis/compiler/tree/propagation/summary.txt
new file mode 100644
index 0000000000..0b4a810b9a
--- /dev/null
+++ b/basis/compiler/tree/propagation/summary.txt
@@ -0,0 +1 @@
+Class, interval, constant propagation
diff --git a/basis/compiler/tree/strength-reduction/strength-reduction-tests.factor b/basis/compiler/tree/strength-reduction/strength-reduction-tests.factor
new file mode 100644
index 0000000000..86fe74d939
--- /dev/null
+++ b/basis/compiler/tree/strength-reduction/strength-reduction-tests.factor
@@ -0,0 +1,119 @@
+! TUPLE: declared-fixnum { x fixnum } ;
+! 
+! [ t ] [
+!     [ { declared-fixnum } declare [ 1 + ] change-x ]
+!     { + fixnum+ >fixnum } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ { declared-fixnum } declare x>> drop ]
+!     { slot } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ hashtable new ] \ new inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ dup hashtable eq? [ new ] when ] \ new inlined?
+! ] unit-test
+! 
+! [ f ] [
+!     [ { integer } declare -63 shift 4095 bitand ]
+!     \ shift inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ { integer } declare 127 bitand 3 + ]
+!     { + +-integer-fixnum +-integer-fixnum-fast bitand } inlined?
+! ] unit-test
+! 
+! [ f ] [
+!     [ { integer } declare 127 bitand 3 + ]
+!     { >fixnum } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { integer } declare
+!         dup 0 >= [
+!             615949 * 797807 + 20 2^ mod dup 19 2^ -
+!         ] [ dup ] if
+!     ] { * + shift mod fixnum-mod fixnum* fixnum+ fixnum- } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { fixnum } declare
+!         615949 * 797807 + 20 2^ mod dup 19 2^ -
+!     ] { >fixnum } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { integer } declare 0 swap
+!         [
+!             drop 615949 * 797807 + 20 2^ rem dup 19 2^ -
+!         ] map
+!     ] { * + shift rem mod fixnum-mod fixnum* fixnum+ fixnum- } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { fixnum } declare 0 swap
+!         [
+!             drop 615949 * 797807 + 20 2^ rem dup 19 2^ -
+!         ] map
+!     ] { * + shift rem mod fixnum-mod fixnum* fixnum+ fixnum- >fixnum } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ { string sbuf } declare ] \ push-all def>> append \ + inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ { string sbuf } declare ] \ push-all def>> append \ fixnum+ inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [ { string sbuf } declare ] \ push-all def>> append \ >fixnum inlined?
+! ] unit-test
+! 
+! 
+! 
+! [ t ] [
+!     [
+!         { integer } declare [ 256 mod ] map
+!     ] { mod fixnum-mod } inlined?
+! ] unit-test
+! 
+! 
+! [ f ] [
+!     [
+!         256 mod
+!     ] { mod fixnum-mod } inlined?
+! ] unit-test
+! 
+! [ f ] [
+!     [
+!         dup 0 >= [ 256 mod ] when
+!     ] { mod fixnum-mod } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { integer } declare dup 0 >= [ 256 mod ] when
+!     ] { mod fixnum-mod } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { integer } declare 256 rem
+!     ] { mod fixnum-mod } inlined?
+! ] unit-test
+! 
+! [ t ] [
+!     [
+!         { integer } declare [ 256 rem ] map
+!     ] { mod fixnum-mod rem } inlined?
+! ] unit-test
diff --git a/basis/compiler/tree/strength-reduction/strength-reduction.factor b/basis/compiler/tree/strength-reduction/strength-reduction.factor
new file mode 100644
index 0000000000..c36395bbee
--- /dev/null
+++ b/basis/compiler/tree/strength-reduction/strength-reduction.factor
@@ -0,0 +1,5 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+IN: compiler.tree.strength-reduction
+
+: strength-reduce ( nodes -- nodes' ) ;
diff --git a/basis/compiler/tree/summary.txt b/basis/compiler/tree/summary.txt
new file mode 100644
index 0000000000..f4788f9c04
--- /dev/null
+++ b/basis/compiler/tree/summary.txt
@@ -0,0 +1 @@
+High-level optimizer operating on lexical tree SSA IR
diff --git a/basis/compiler/tree/tree.factor b/basis/compiler/tree/tree.factor
new file mode 100755
index 0000000000..b6c798ca3c
--- /dev/null
+++ b/basis/compiler/tree/tree.factor
@@ -0,0 +1,211 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry arrays generic assocs kernel math namespaces parser
+sequences words vectors math.intervals effects classes
+accessors combinators stack-checker.state stack-checker.visitor
+stack-checker.inlining ;
+IN: compiler.tree
+
+! High-level tree SSA form.
+
+TUPLE: node < identity-tuple ;
+
+M: node hashcode* drop node hashcode* ;
+
+TUPLE: #introduce < node out-d ;
+
+: #introduce ( out-d -- node )
+    \ #introduce new swap >>out-d ;
+
+TUPLE: #call < node word in-d out-d body method class info ;
+
+: #call ( inputs outputs word -- node )
+    \ #call new
+        swap >>word
+        swap >>out-d
+        swap >>in-d ;
+
+TUPLE: #call-recursive < node label in-d out-d info ;
+
+: #call-recursive ( inputs outputs label -- node )
+    \ #call-recursive new
+        swap >>label
+        swap >>out-d
+        swap >>in-d ;
+
+TUPLE: #push < node literal out-d ;
+
+: #push ( literal value -- node )
+    \ #push new
+        swap 1array >>out-d
+        swap >>literal ;
+
+TUPLE: #renaming < node ;
+
+TUPLE: #shuffle < #renaming mapping in-d out-d ;
+
+: #shuffle ( inputs outputs mapping -- node )
+    \ #shuffle new
+        swap >>mapping
+        swap >>out-d
+        swap >>in-d ;
+
+: #drop ( inputs -- node )
+    { } { } #shuffle ;
+
+TUPLE: #>r < #renaming in-d out-r ;
+
+: #>r ( inputs outputs -- node )
+    \ #>r new
+        swap >>out-r
+        swap >>in-d ;
+
+TUPLE: #r> < #renaming in-r out-d ;
+
+: #r> ( inputs outputs -- node )
+    \ #r> new
+        swap >>out-d
+        swap >>in-r ;
+
+TUPLE: #terminate < node in-d in-r ;
+
+: #terminate ( in-d in-r -- node )
+    \ #terminate new
+        swap >>in-r
+        swap >>in-d ;
+
+TUPLE: #branch < node in-d children live-branches ;
+
+: new-branch ( value children class -- node )
+    new
+        swap >>children
+        swap 1array >>in-d ; inline
+
+TUPLE: #if < #branch ;
+
+: #if ( ? true false -- node )
+    2array \ #if new-branch ;
+
+TUPLE: #dispatch < #branch ;
+
+: #dispatch ( n branches -- node )
+    \ #dispatch new-branch ;
+
+TUPLE: #phi < node phi-in-d phi-info-d out-d terminated ;
+
+: #phi ( d-phi-in d-phi-out terminated -- node )
+    \ #phi new
+        swap >>terminated
+        swap >>out-d
+        swap >>phi-in-d ;
+
+TUPLE: #declare < node declaration ;
+
+: #declare ( declaration -- node )
+    \ #declare new
+        swap >>declaration ;
+
+TUPLE: #return < node in-d info ;
+
+: #return ( stack -- node )
+    \ #return new
+        swap >>in-d ;
+
+TUPLE: #recursive < node in-d word label loop? child ;
+
+: #recursive ( label inputs child -- node )
+    \ #recursive new
+        swap >>child
+        swap >>in-d
+        swap >>label ;
+
+TUPLE: #enter-recursive < node in-d out-d label info ;
+
+: #enter-recursive ( label inputs outputs -- node )
+    \ #enter-recursive new
+        swap >>out-d
+        swap >>in-d
+        swap >>label ;
+
+TUPLE: #return-recursive < #renaming in-d out-d label info ;
+
+: #return-recursive ( label inputs outputs -- node )
+    \ #return-recursive new
+        swap >>out-d
+        swap >>in-d
+        swap >>label ;
+
+TUPLE: #copy < #renaming in-d out-d ;
+
+: #copy ( inputs outputs -- node )
+    \ #copy new
+        swap >>out-d
+        swap >>in-d ;
+
+TUPLE: #alien-node < node params ;
+
+: new-alien-node ( params class -- node )
+    new
+        over in-d>> >>in-d
+        over out-d>> >>out-d
+        swap >>params ; inline
+
+TUPLE: #alien-invoke < #alien-node in-d out-d ;
+
+: #alien-invoke ( params -- node )
+    \ #alien-invoke new-alien-node ;
+
+TUPLE: #alien-indirect < #alien-node in-d out-d ;
+
+: #alien-indirect ( params -- node )
+    \ #alien-indirect new-alien-node ;
+
+TUPLE: #alien-callback < #alien-node ;
+
+: #alien-callback ( params -- node )
+    \ #alien-callback new
+        swap >>params ;
+
+: node, ( node -- ) stack-visitor get push ;
+
+GENERIC: inputs/outputs ( #renaming -- inputs outputs )
+
+M: #shuffle inputs/outputs mapping>> unzip swap ;
+M: #>r inputs/outputs [ in-d>> ] [ out-r>> ] bi ;
+M: #r> inputs/outputs [ in-r>> ] [ out-d>> ] bi ;
+M: #copy inputs/outputs [ in-d>> ] [ out-d>> ] bi ;
+M: #return-recursive inputs/outputs [ in-d>> ] [ out-d>> ] bi ;
+
+: shuffle-effect ( #shuffle -- effect )
+    [ in-d>> ] [ out-d>> ] [ mapping>> ] tri
+    '[ , at ] map
+    <effect> ;
+
+: recursive-phi-in ( #enter-recursive -- seq )
+    [ label>> calls>> [ in-d>> ] map ] [ in-d>> ] bi suffix ;
+
+: ends-with-terminate? ( nodes -- ? )
+    [ f ] [ peek #terminate? ] if-empty ;
+
+M: vector child-visitor V{ } clone ;
+M: vector #introduce, #introduce node, ;
+M: vector #call, #call node, ;
+M: vector #push, #push node, ;
+M: vector #shuffle, #shuffle node, ;
+M: vector #drop, #drop node, ;
+M: vector #>r, #>r node, ;
+M: vector #r>, #r> node, ;
+M: vector #return, #return node, ;
+M: vector #enter-recursive, #enter-recursive node, ;
+M: vector #return-recursive, #return-recursive node, ;
+M: vector #call-recursive, #call-recursive node, ;
+M: vector #terminate, #terminate node, ;
+M: vector #if, #if node, ;
+M: vector #dispatch, #dispatch node, ;
+M: vector #phi, #phi node, ;
+M: vector #declare, #declare node, ;
+M: vector #recursive, #recursive node, ;
+M: vector #copy, #copy node, ;
+M: vector #alien-invoke, #alien-invoke node, ;
+M: vector #alien-indirect, #alien-indirect node, ;
+M: vector #alien-callback, #alien-callback node, ;
diff --git a/basis/compiler/tree/tuple-unboxing/tuple-unboxing-tests.factor b/basis/compiler/tree/tuple-unboxing/tuple-unboxing-tests.factor
new file mode 100644
index 0000000000..858e40347f
--- /dev/null
+++ b/basis/compiler/tree/tuple-unboxing/tuple-unboxing-tests.factor
@@ -0,0 +1,55 @@
+IN: compiler.tree.tuple-unboxing.tests
+USING: tools.test compiler.tree.tuple-unboxing compiler.tree
+compiler.tree.builder compiler.tree.normalization
+compiler.tree.propagation compiler.tree.cleanup
+compiler.tree.escape-analysis compiler.tree.tuple-unboxing
+compiler.tree.checker compiler.tree.def-use kernel accessors
+sequences math math.private sorting math.order binary-search
+sequences.private slots.private ;
+
+\ unbox-tuples must-infer
+
+: test-unboxing ( quot -- )
+    build-tree
+    normalize
+    propagate
+    cleanup
+    escape-analysis
+    unbox-tuples
+    check-nodes ;
+
+TUPLE: cons { car read-only } { cdr read-only } ;
+
+TUPLE: empty-tuple ;
+
+{
+    [ 1 2 cons boa [ car>> ] [ cdr>> ] bi ]
+    [ empty-tuple boa drop ]
+    [ cons boa [ car>> ] [ cdr>> ] bi ]
+    [ [ 1 cons boa ] [ 2 cons boa ] if car>> ]
+    [ dup cons boa 10 [ nip dup cons boa ] each-integer car>> ]
+    [ 2 cons boa { [ ] [ ] } dispatch ]
+    [ dup [ drop f ] [ "A" throw ] if ]
+    [ [ ] [ ] curry curry dup 2 slot swap 3 slot dup 2 slot swap 3 slot drop ]
+    [ [ ] [ ] curry curry call ]
+    [ <complex> <complex> dup 1 slot drop 2 slot drop ]
+    [ 1 cons boa over [ "A" throw ] when car>> ]
+    [ [ <=> ] sort ]
+    [ [ <=> ] with search ]
+} [ [ ] swap [ test-unboxing ] curry unit-test ] each
+
+! A more complicated example
+: impeach-node ( quot: ( node -- ) -- )
+    dup slip impeach-node ; inline recursive
+
+: bleach-node ( quot: ( node -- ) -- )
+    [ bleach-node ] curry [ ] compose impeach-node ; inline recursive
+
+[ ] [ [ [ ] bleach-node ] test-unboxing ] unit-test
+
+TUPLE: box { i read-only } ;
+
+: box-test ( m -- n )
+    dup box-test i>> swap box-test drop box boa ; inline recursive
+
+[ ] [ [ T{ box f 34 } box-test i>> ] test-unboxing ] unit-test
diff --git a/basis/compiler/tree/tuple-unboxing/tuple-unboxing.factor b/basis/compiler/tree/tuple-unboxing/tuple-unboxing.factor
new file mode 100644
index 0000000000..6fc0e76310
--- /dev/null
+++ b/basis/compiler/tree/tuple-unboxing/tuple-unboxing.factor
@@ -0,0 +1,139 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces assocs accessors kernel combinators
+classes.algebra sequences sequences.deep slots.private
+classes.tuple.private math math.private arrays
+stack-checker.branches
+compiler.intrinsics
+compiler.tree
+compiler.tree.combinators
+compiler.tree.propagation.info
+compiler.tree.escape-analysis.simple
+compiler.tree.escape-analysis.allocations ;
+IN: compiler.tree.tuple-unboxing
+
+! This pass must run after escape analysis
+
+GENERIC: unbox-tuples* ( node -- node/nodes )
+
+: unbox-output? ( node -- values )
+    out-d>> first unboxed-allocation ;
+
+: (expand-#push) ( object value -- nodes )
+    dup unboxed-allocation dup [
+        [ object-slots ] [ drop ] [ ] tri*
+        [ (expand-#push) ] 2map
+    ] [
+        drop #push
+    ] if ;
+
+: expand-#push ( #push -- nodes )
+    [ literal>> ] [ out-d>> first ] bi (expand-#push) ;
+
+M: #push unbox-tuples* ( #push -- nodes )
+    dup unbox-output? [ expand-#push ] when ;
+
+: unbox-<tuple-boa> ( #call -- nodes )
+    dup unbox-output? [ in-d>> 1 tail* #drop ] when ;
+
+: unbox-<complex> ( #call -- nodes )
+    dup unbox-output? [ drop { } ] when ;
+
+: (flatten-values) ( values -- values' )
+    [ dup unboxed-allocation [ (flatten-values) ] [ ] ?if ] map ;
+
+: flatten-values ( values -- values' )
+    (flatten-values) flatten ;
+
+: prepare-slot-access ( #call -- tuple-values outputs slot-values )
+    [ in-d>> flatten-values ]
+    [ out-d>> flatten-values ]
+    [
+        out-d>> first slot-accesses get at
+        [ slot#>> ] [ value>> ] bi allocation nth
+        1array flatten-values
+    ] tri ;
+
+: slot-access-shuffle ( tuple-values outputs slot-values -- #shuffle )
+    [ drop ] [ zip ] 2bi #shuffle ;
+
+: unbox-slot-access ( #call -- nodes )
+    dup out-d>> first unboxed-slot-access? [
+        prepare-slot-access slot-access-shuffle
+    ] when ;
+
+M: #call unbox-tuples*
+    dup word>> {
+        { \ <tuple-boa> [ unbox-<tuple-boa> ] }
+        { \ <complex> [ unbox-<complex> ] }
+        { \ slot [ unbox-slot-access ] }
+        [ drop ]
+    } case ;
+
+M: #declare unbox-tuples*
+    #! We don't look at declarations after propagation anyway.
+    f >>declaration ;
+
+M: #copy unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-out-d ;
+
+M: #>r unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-out-r ;
+
+M: #r> unbox-tuples*
+    [ flatten-values ] change-in-r
+    [ flatten-values ] change-out-d ;
+
+M: #shuffle unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-out-d
+    [ unzip [ flatten-values ] bi@ zip ] change-mapping ;
+
+M: #terminate unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-in-r ;
+
+M: #phi unbox-tuples*
+    [ [ flatten-values ] map pad-with-bottom ] change-phi-in-d
+    [ flatten-values ] change-out-d ;
+
+M: #recursive unbox-tuples*
+    [ label>> [ flatten-values ] change-enter-out drop ]
+    [ [ flatten-values ] change-in-d ]
+    bi ;
+
+M: #enter-recursive unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-out-d ;
+
+M: #call-recursive unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-out-d ;
+
+M: #return-recursive unbox-tuples*
+    [ flatten-values ] change-in-d
+    [ flatten-values ] change-out-d ;
+
+! These nodes never participate in unboxing
+: assert-not-unboxed ( values -- )
+    dup array?
+    [ [ unboxed-allocation ] contains? ] [ unboxed-allocation ] if
+    [ "Unboxing wrong value" throw ] when ;
+
+M: #branch unbox-tuples* dup in-d>> assert-not-unboxed ;
+
+M: #return unbox-tuples* dup in-d>> assert-not-unboxed ;
+
+M: #introduce unbox-tuples* dup out-d>> assert-not-unboxed ;
+
+M: #alien-invoke unbox-tuples* dup in-d>> assert-not-unboxed ;
+
+M: #alien-indirect unbox-tuples* dup in-d>> assert-not-unboxed ;
+
+M: #alien-callback unbox-tuples* ;
+
+: unbox-tuples ( nodes -- nodes )
+    allocations get escaping-allocations get assoc-diff assoc-empty?
+    [ [ unbox-tuples* ] map-nodes ] unless ;
diff --git a/extra/concurrency/combinators/combinators-docs.factor b/basis/concurrency/combinators/combinators-docs.factor
similarity index 100%
rename from extra/concurrency/combinators/combinators-docs.factor
rename to basis/concurrency/combinators/combinators-docs.factor
diff --git a/extra/concurrency/combinators/combinators-tests.factor b/basis/concurrency/combinators/combinators-tests.factor
similarity index 100%
rename from extra/concurrency/combinators/combinators-tests.factor
rename to basis/concurrency/combinators/combinators-tests.factor
diff --git a/extra/concurrency/combinators/combinators.factor b/basis/concurrency/combinators/combinators.factor
similarity index 100%
rename from extra/concurrency/combinators/combinators.factor
rename to basis/concurrency/combinators/combinators.factor
diff --git a/extra/concurrency/combinators/summary.txt b/basis/concurrency/combinators/summary.txt
similarity index 100%
rename from extra/concurrency/combinators/summary.txt
rename to basis/concurrency/combinators/summary.txt
diff --git a/extra/concurrency/conditions/conditions.factor b/basis/concurrency/conditions/conditions.factor
similarity index 60%
rename from extra/concurrency/conditions/conditions.factor
rename to basis/concurrency/conditions/conditions.factor
index b10aded671..43374d3127 100755
--- a/extra/concurrency/conditions/conditions.factor
+++ b/basis/concurrency/conditions/conditions.factor
@@ -1,21 +1,20 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: dlists dlists.private threads kernel arrays sequences
-alarms ;
+USING: deques threads kernel arrays sequences alarms ;
 IN: concurrency.conditions
 
-: notify-1 ( dlist -- )
-    dup dlist-empty? [ drop ] [ pop-back resume-now ] if ;
+: notify-1 ( deque -- )
+    dup deque-empty? [ drop ] [ pop-back resume-now ] if ;
 
-: notify-all ( dlist -- )
-    [ resume-now ] dlist-slurp ;
+: notify-all ( deque -- )
+    [ resume-now ] slurp-deque ;
 
 : queue-timeout ( queue timeout -- alarm )
     #! Add an alarm which removes the current thread from the
     #! queue, and resumes it, passing it a value of t.
-    >r self over push-front* [
-        tuck delete-node
-        dlist-node-obj t swap resume-with
+    >r [ self swap push-front* ] keep [
+        [ delete-node ] [ drop node-value ] 2bi
+        t swap resume-with
     ] 2curry r> later ;
 
 : wait ( queue timeout status -- )
diff --git a/extra/concurrency/conditions/summary.txt b/basis/concurrency/conditions/summary.txt
similarity index 100%
rename from extra/concurrency/conditions/summary.txt
rename to basis/concurrency/conditions/summary.txt
diff --git a/extra/concurrency/count-downs/count-downs-docs.factor b/basis/concurrency/count-downs/count-downs-docs.factor
similarity index 87%
rename from extra/concurrency/count-downs/count-downs-docs.factor
rename to basis/concurrency/count-downs/count-downs-docs.factor
index 5da10f7b57..12681e2638 100755
--- a/extra/concurrency/count-downs/count-downs-docs.factor
+++ b/basis/concurrency/count-downs/count-downs-docs.factor
@@ -19,6 +19,7 @@ ARTICLE: "concurrency.count-downs" "Count-down latches"
 "The " { $vocab-link "concurrency.count-downs" } " vocabulary implements the " { $emphasis "count-down latch" } " data type, whichis a wrapper for a non-negative integer value which tends towards zero. A thread can either decrement the value, or wait for it to become zero."
 { $subsection <count-down> }
 { $subsection count-down }
-{ $subsection await } ;
+{ $subsection await }
+"The vocabulary was modelled after a similar feature in Java's " { $snippet "java.util.concurrent" } " library." ;
 
 ABOUT: "concurrency.count-downs"
diff --git a/extra/concurrency/count-downs/count-downs-tests.factor b/basis/concurrency/count-downs/count-downs-tests.factor
similarity index 100%
rename from extra/concurrency/count-downs/count-downs-tests.factor
rename to basis/concurrency/count-downs/count-downs-tests.factor
diff --git a/extra/concurrency/count-downs/count-downs.factor b/basis/concurrency/count-downs/count-downs.factor
similarity index 100%
rename from extra/concurrency/count-downs/count-downs.factor
rename to basis/concurrency/count-downs/count-downs.factor
diff --git a/extra/concurrency/count-downs/summary.txt b/basis/concurrency/count-downs/summary.txt
similarity index 100%
rename from extra/concurrency/count-downs/summary.txt
rename to basis/concurrency/count-downs/summary.txt
diff --git a/extra/channels/remote/authors.txt b/basis/concurrency/distributed/authors.txt
similarity index 100%
rename from extra/channels/remote/authors.txt
rename to basis/concurrency/distributed/authors.txt
diff --git a/extra/concurrency/distributed/distributed-docs.factor b/basis/concurrency/distributed/distributed-docs.factor
similarity index 92%
rename from extra/concurrency/distributed/distributed-docs.factor
rename to basis/concurrency/distributed/distributed-docs.factor
index b3f3b633cd..91de425d8a 100755
--- a/extra/concurrency/distributed/distributed-docs.factor
+++ b/basis/concurrency/distributed/distributed-docs.factor
@@ -9,7 +9,7 @@ HELP: start-node
 { $description "Starts a node server for receiving messages from remote Factor instances." } ;
 
 ARTICLE: "concurrency.distributed" "Distributed message passing"
-"The " { $vocab-link "concurrency.distributed" } " implements transparent distributed message passing."
+"The " { $vocab-link "concurrency.distributed" } " implements transparent distributed message passing, inspired by Erlang and Termite."
 { $subsection start-node }
 "Instances of " { $link thread } " can be sent to remote processes, at which point they are converted to objects holding the thread ID and the current node's host name:"
 { $subsection remote-process }
diff --git a/extra/concurrency/distributed/distributed-tests.factor b/basis/concurrency/distributed/distributed-tests.factor
similarity index 83%
rename from extra/concurrency/distributed/distributed-tests.factor
rename to basis/concurrency/distributed/distributed-tests.factor
index ca1da0deaa..528e1956b8 100755
--- a/extra/concurrency/distributed/distributed-tests.factor
+++ b/basis/concurrency/distributed/distributed-tests.factor
@@ -1,9 +1,9 @@
 IN: concurrency.distributed.tests
 USING: tools.test concurrency.distributed kernel io.files
 arrays io.sockets system combinators threads math sequences
-concurrency.messaging continuations ;
+concurrency.messaging continuations accessors prettyprint ;
 
-: test-node
+: test-node ( -- addrspec )
     {
         { [ os unix? ] [ "distributed-concurrency-test" temp-file <local> ] }
         { [ os windows? ] [ "127.0.0.1" 1238 <inet4> ] }
@@ -11,9 +11,7 @@ concurrency.messaging continuations ;
 
 [ ] [ [ "distributed-concurrency-test" temp-file delete-file ] ignore-errors ] unit-test
 
-[ ] [ test-node dup 1array swap (start-node) ] unit-test
-
-[ ] [ 100 sleep ] unit-test
+[ ] [ test-node dup (start-node) ] unit-test
 
 [ ] [
     [
diff --git a/extra/concurrency/distributed/distributed.factor b/basis/concurrency/distributed/distributed.factor
similarity index 57%
rename from extra/concurrency/distributed/distributed.factor
rename to basis/concurrency/distributed/distributed.factor
index c637f4baa3..5e2f1bb6d1 100755
--- a/extra/concurrency/distributed/distributed.factor
+++ b/basis/concurrency/distributed/distributed.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2005 Chris Double. All Rights Reserved.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: serialize sequences concurrency.messaging threads io
-io.server qualified arrays namespaces kernel io.encodings.binary
-accessors ;
+io.servers.connection io.encodings.binary
+qualified arrays namespaces kernel accessors ;
 FROM: io.sockets => host-name <inet> with-client ;
 IN: concurrency.distributed
 
@@ -10,21 +10,20 @@ SYMBOL: local-node
 
 : handle-node-client ( -- )
     deserialize
-    [ first2 get-process send ]
-    [ stop-server ] if* ;
+    [ first2 get-process send ] [ stop-server ] if* ;
 
-: (start-node) ( addrspecs addrspec -- )
-    local-node set-global
-    [
-        "concurrency.distributed"
-        binary
-        [ handle-node-client ] with-server
-    ] curry "Distributed concurrency server" spawn drop ;
+: <node-server> ( addrspec -- threaded-server )
+    <threaded-server>
+        swap >>insecure
+        binary >>encoding
+        "concurrency.distributed" >>name
+        [ handle-node-client ] >>handler ;
+
+: (start-node) ( addrspec addrspec -- )
+    local-node set-global <node-server> start-server* ;
 
 : start-node ( port -- )
-    [ internet-server ]
-    [ host-name swap <inet> ] bi
-    (start-node) ;
+    host-name over <inet> (start-node) ;
 
 TUPLE: remote-process id node ;
 
@@ -38,7 +37,7 @@ M: remote-process send ( message thread -- )
     send-remote-message ;
 
 M: thread (serialize) ( obj -- )
-    thread-id local-node get-global <remote-process>
+    id>> local-node get-global <remote-process>
     (serialize) ;
 
 : stop-node ( node -- )
diff --git a/extra/concurrency/distributed/summary.txt b/basis/concurrency/distributed/summary.txt
similarity index 100%
rename from extra/concurrency/distributed/summary.txt
rename to basis/concurrency/distributed/summary.txt
diff --git a/extra/concurrency/distributed/tags.txt b/basis/concurrency/distributed/tags.txt
similarity index 100%
rename from extra/concurrency/distributed/tags.txt
rename to basis/concurrency/distributed/tags.txt
diff --git a/core/inference/dataflow/authors.txt b/basis/concurrency/exchangers/authors.txt
similarity index 100%
rename from core/inference/dataflow/authors.txt
rename to basis/concurrency/exchangers/authors.txt
diff --git a/extra/concurrency/exchangers/exchangers-docs.factor b/basis/concurrency/exchangers/exchangers-docs.factor
similarity index 87%
rename from extra/concurrency/exchangers/exchangers-docs.factor
rename to basis/concurrency/exchangers/exchangers-docs.factor
index 6df3729e41..d283b92452 100755
--- a/extra/concurrency/exchangers/exchangers-docs.factor
+++ b/basis/concurrency/exchangers/exchangers-docs.factor
@@ -17,6 +17,8 @@ ARTICLE: "concurrency.exchangers" "Object exchange points"
 { $subsection exchanger }
 { $subsection <exchanger> }
 { $subsection exchange }
-"One use-case is two threads, where one thread reads data into a buffer and another thread processes the data. The reader thread can begin by reading the data, then passing the buffer through an exchanger, then recursing. The processing thread can begin by creating an empty buffer, and exchanging it through the exchanger. It then processes the result and recurses." ;
+"One use-case is two threads, where one thread reads data into a buffer and another thread processes the data. The reader thread can begin by reading the data, then passing the buffer through an exchanger, then recursing. The processing thread can begin by creating an empty buffer, and exchanging it through the exchanger. It then processes the result and recurses."
+$nl
+"The vocabulary was modelled after a similar feature in Java's " { $snippet "java.util.concurrent" } " library." ;
 
 ABOUT: "concurrency.exchangers"
diff --git a/extra/concurrency/exchangers/exchangers-tests.factor b/basis/concurrency/exchangers/exchangers-tests.factor
similarity index 100%
rename from extra/concurrency/exchangers/exchangers-tests.factor
rename to basis/concurrency/exchangers/exchangers-tests.factor
diff --git a/extra/concurrency/exchangers/exchangers.factor b/basis/concurrency/exchangers/exchangers.factor
similarity index 100%
rename from extra/concurrency/exchangers/exchangers.factor
rename to basis/concurrency/exchangers/exchangers.factor
diff --git a/extra/concurrency/exchangers/summary.txt b/basis/concurrency/exchangers/summary.txt
similarity index 100%
rename from extra/concurrency/exchangers/summary.txt
rename to basis/concurrency/exchangers/summary.txt
diff --git a/extra/concurrency/flags/flags-docs.factor b/basis/concurrency/flags/flags-docs.factor
similarity index 100%
rename from extra/concurrency/flags/flags-docs.factor
rename to basis/concurrency/flags/flags-docs.factor
diff --git a/extra/concurrency/flags/flags-tests.factor b/basis/concurrency/flags/flags-tests.factor
similarity index 100%
rename from extra/concurrency/flags/flags-tests.factor
rename to basis/concurrency/flags/flags-tests.factor
diff --git a/extra/concurrency/flags/flags.factor b/basis/concurrency/flags/flags.factor
similarity index 100%
rename from extra/concurrency/flags/flags.factor
rename to basis/concurrency/flags/flags.factor
diff --git a/extra/concurrency/futures/authors.txt b/basis/concurrency/futures/authors.txt
similarity index 100%
rename from extra/concurrency/futures/authors.txt
rename to basis/concurrency/futures/authors.txt
diff --git a/extra/concurrency/futures/futures-docs.factor b/basis/concurrency/futures/futures-docs.factor
similarity index 100%
rename from extra/concurrency/futures/futures-docs.factor
rename to basis/concurrency/futures/futures-docs.factor
diff --git a/extra/concurrency/futures/futures-tests.factor b/basis/concurrency/futures/futures-tests.factor
similarity index 100%
rename from extra/concurrency/futures/futures-tests.factor
rename to basis/concurrency/futures/futures-tests.factor
diff --git a/extra/concurrency/futures/futures.factor b/basis/concurrency/futures/futures.factor
similarity index 84%
rename from extra/concurrency/futures/futures.factor
rename to basis/concurrency/futures/futures.factor
index 85f1ba44a0..132342aff1 100755
--- a/extra/concurrency/futures/futures.factor
+++ b/basis/concurrency/futures/futures.factor
@@ -1,13 +1,13 @@
 ! Copyright (C) 2005, 2008 Chris Double, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: concurrency.promises concurrency.mailboxes kernel arrays
-continuations ;
+continuations accessors ;
 IN: concurrency.futures
 
 : future ( quot -- future )
     <promise> [
         [ [ >r call r> fulfill ] 2curry "Future" ] keep
-        promise-mailbox spawn-linked-to drop
+        mailbox>> spawn-linked-to drop
     ] keep ; inline
 
 : ?future-timeout ( future timeout -- value )
diff --git a/extra/concurrency/futures/summary.txt b/basis/concurrency/futures/summary.txt
similarity index 100%
rename from extra/concurrency/futures/summary.txt
rename to basis/concurrency/futures/summary.txt
diff --git a/core/inference/errors/authors.txt b/basis/concurrency/locks/authors.txt
similarity index 100%
rename from core/inference/errors/authors.txt
rename to basis/concurrency/locks/authors.txt
diff --git a/extra/concurrency/locks/locks-docs.factor b/basis/concurrency/locks/locks-docs.factor
similarity index 100%
rename from extra/concurrency/locks/locks-docs.factor
rename to basis/concurrency/locks/locks-docs.factor
diff --git a/extra/concurrency/locks/locks-tests.factor b/basis/concurrency/locks/locks-tests.factor
similarity index 93%
rename from extra/concurrency/locks/locks-tests.factor
rename to basis/concurrency/locks/locks-tests.factor
index 659bd2714e..67f9bbb15a 100755
--- a/extra/concurrency/locks/locks-tests.factor
+++ b/basis/concurrency/locks/locks-tests.factor
@@ -1,7 +1,7 @@
 IN: concurrency.locks.tests
 USING: tools.test concurrency.locks concurrency.count-downs
 concurrency.messaging concurrency.mailboxes locals kernel
-threads sequences calendar ;
+threads sequences calendar accessors ;
 
 :: lock-test-0 ( -- )
     [let | v [ V{ } clone ]
@@ -174,7 +174,7 @@ threads sequences calendar ;
     ] ;
 
 [ lock-timeout-test ] [
-    linked-error-thread thread-name "Lock timeout-er" =
+    thread>> name>> "Lock timeout-er" =
 ] must-fail-with
 
 :: read/write-test ( -- )
diff --git a/extra/concurrency/locks/locks.factor b/basis/concurrency/locks/locks.factor
similarity index 67%
rename from extra/concurrency/locks/locks.factor
rename to basis/concurrency/locks/locks.factor
index b5ea247420..8c1392dbfb 100755
--- a/extra/concurrency/locks/locks.factor
+++ b/basis/concurrency/locks/locks.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: dlists kernel threads continuations math
-concurrency.conditions ;
+USING: deques dlists kernel threads continuations math
+concurrency.conditions combinators.short-circuit accessors ;
 IN: concurrency.locks
 
 ! Simple critical sections
@@ -16,13 +16,13 @@ TUPLE: lock threads owner reentrant? ;
 <PRIVATE
 
 : acquire-lock ( lock timeout -- )
-    over lock-owner
-    [ 2dup >r lock-threads r> "lock" wait ] when drop
-    self swap set-lock-owner ;
+    over owner>>
+    [ 2dup >r threads>> r> "lock" wait ] when drop
+    self >>owner drop ;
 
 : release-lock ( lock -- )
-    f over set-lock-owner
-    lock-threads notify-1 ;
+    f >>owner
+    threads>> notify-1 ;
 
 : do-lock ( lock timeout quot acquire release -- )
     >r >r pick rot r> call ! use up  timeout acquire
@@ -34,8 +34,8 @@ TUPLE: lock threads owner reentrant? ;
 PRIVATE>
 
 : with-lock-timeout ( lock timeout quot -- )
-    pick lock-reentrant? [
-        pick lock-owner self eq? [
+    pick reentrant?>> [
+        pick owner>> self eq? [
             2nip call
         ] [
             (with-lock)
@@ -56,44 +56,43 @@ TUPLE: rw-lock readers writers reader# writer ;
 <PRIVATE
 
 : add-reader ( lock -- )
-    dup rw-lock-reader# 1+ swap set-rw-lock-reader# ;
+    [ 1+ ] change-reader# drop ;
 
 : acquire-read-lock ( lock timeout -- )
-    over rw-lock-writer
-    [ 2dup >r rw-lock-readers r> "read lock" wait ] when drop
+    over writer>>
+    [ 2dup >r readers>> r> "read lock" wait ] when drop
     add-reader ;
 
 : notify-writer ( lock -- )
-    rw-lock-writers notify-1 ;
+    writers>> notify-1 ;
 
 : remove-reader ( lock -- )
-    dup rw-lock-reader# 1- swap set-rw-lock-reader# ;
+    [ 1- ] change-reader# drop ;
 
 : release-read-lock ( lock -- )
     dup remove-reader
-    dup rw-lock-reader# zero? [ notify-writer ] [ drop ] if ;
+    dup reader#>> zero? [ notify-writer ] [ drop ] if ;
 
 : acquire-write-lock ( lock timeout -- )
-    over rw-lock-writer pick rw-lock-reader# 0 > or
-    [ 2dup >r rw-lock-writers r> "write lock" wait ] when drop
-    self swap set-rw-lock-writer ;
+    over writer>> pick reader#>> 0 > or
+    [ 2dup >r writers>> r> "write lock" wait ] when drop
+    self >>writer drop ;
 
 : release-write-lock ( lock -- )
-    f over set-rw-lock-writer
-    dup rw-lock-readers dlist-empty?
-    [ notify-writer ] [ rw-lock-readers notify-all ] if ;
+    f >>writer
+    dup readers>> deque-empty?
+    [ notify-writer ] [ readers>> notify-all ] if ;
 
 : reentrant-read-lock-ok? ( lock -- ? )
     #! If we already have a write lock, then we can grab a read
     #! lock too.
-    rw-lock-writer self eq? ;
+    writer>> self eq? ;
 
 : reentrant-write-lock-ok? ( lock -- ? )
     #! The only case where we have a writer and > 1 reader is
     #! write -> read re-entrancy, and in this case we prohibit
     #! a further write -> read -> write re-entrancy.
-    dup rw-lock-writer self eq?
-    swap rw-lock-reader# zero? and ;
+    { [ writer>> self eq? ] [ reader#>> zero? ] } 1&& ;
 
 PRIVATE>
 
diff --git a/extra/concurrency/locks/summary.txt b/basis/concurrency/locks/summary.txt
similarity index 100%
rename from extra/concurrency/locks/summary.txt
rename to basis/concurrency/locks/summary.txt
diff --git a/extra/concurrency/mailboxes/mailboxes-docs.factor b/basis/concurrency/mailboxes/mailboxes-docs.factor
similarity index 100%
rename from extra/concurrency/mailboxes/mailboxes-docs.factor
rename to basis/concurrency/mailboxes/mailboxes-docs.factor
diff --git a/extra/concurrency/mailboxes/mailboxes-tests.factor b/basis/concurrency/mailboxes/mailboxes-tests.factor
similarity index 93%
rename from extra/concurrency/mailboxes/mailboxes-tests.factor
rename to basis/concurrency/mailboxes/mailboxes-tests.factor
index 61c57bb9e9..64971eeb77 100755
--- a/extra/concurrency/mailboxes/mailboxes-tests.factor
+++ b/basis/concurrency/mailboxes/mailboxes-tests.factor
@@ -3,6 +3,8 @@ USING: concurrency.mailboxes concurrency.count-downs vectors
 sequences threads tools.test math kernel strings namespaces
 continuations calendar destructors ;
 
+{ 1 1 } [ [ integer? ] mailbox-get? ] must-infer-as
+
 [ V{ 1 2 3 } ] [
     0 <vector>
     <mailbox>
diff --git a/extra/concurrency/mailboxes/mailboxes.factor b/basis/concurrency/mailboxes/mailboxes.factor
similarity index 70%
rename from extra/concurrency/mailboxes/mailboxes.factor
rename to basis/concurrency/mailboxes/mailboxes.factor
index 1f94e018c9..6de546ca60 100755
--- a/extra/concurrency/mailboxes/mailboxes.factor
+++ b/basis/concurrency/mailboxes/mailboxes.factor
@@ -1,9 +1,10 @@
 ! Copyright (C) 2005, 2008 Chris Double, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 IN: concurrency.mailboxes
-USING: dlists threads sequences continuations destructors
-namespaces random math quotations words kernel arrays assocs
-init system concurrency.conditions accessors debugger ;
+USING: dlists deques threads sequences continuations
+destructors namespaces random math quotations words kernel
+arrays assocs init system concurrency.conditions accessors
+debugger debugger.threads locals ;
 
 TUPLE: mailbox threads data disposed ;
 
@@ -13,7 +14,7 @@ M: mailbox dispose* threads>> notify-all ;
     <dlist> <dlist> f mailbox boa ;
 
 : mailbox-empty? ( mailbox -- bool )
-    data>> dlist-empty? ;
+    data>> deque-empty? ;
 
 : mailbox-put ( obj mailbox -- )
     [ data>> push-front ]
@@ -22,13 +23,12 @@ M: mailbox dispose* threads>> notify-all ;
 : wait-for-mailbox ( mailbox timeout -- )
     >r threads>> r> "mailbox" wait ;
 
-: block-unless-pred ( mailbox timeout pred -- )
-    pick check-disposed
-    pick data>> over dlist-contains? [
-        3drop
-    ] [
-        >r 2dup wait-for-mailbox r> block-unless-pred
-    ] if ; inline
+:: block-unless-pred ( mailbox timeout pred: ( message -- ? ) -- )
+    mailbox check-disposed
+    mailbox data>> pred dlist-contains? [
+        mailbox timeout wait-for-mailbox
+        mailbox timeout pred block-unless-pred
+    ] unless ; inline recursive
 
 : block-if-empty ( mailbox timeout -- mailbox )
     over check-disposed
@@ -51,21 +51,18 @@ M: mailbox dispose* threads>> notify-all ;
     block-if-empty
     [ dup mailbox-empty? ]
     [ dup data>> pop-back ]
-    [ ] unfold nip ;
+    [ ] produce nip ;
 
 : mailbox-get-all ( mailbox -- array )
     f mailbox-get-all-timeout ;
 
 : while-mailbox-empty ( mailbox quot -- )
-    over mailbox-empty? [
-        dup >r dip r> while-mailbox-empty
-    ] [
-        2drop
-    ] if ; inline
+    [ [ mailbox-empty? ] curry ] dip [ ] while ; inline
 
 : mailbox-get-timeout? ( mailbox timeout pred -- obj )
-    3dup block-unless-pred
-    nip >r data>> r> delete-node-if ; inline
+    [ block-unless-pred ]
+    [ nip >r data>> r> delete-node-if ]
+    3bi ; inline
 
 : mailbox-get? ( mailbox pred -- obj )
     f swap mailbox-get-timeout? ; inline
@@ -84,7 +81,8 @@ M: linked-error error.
 
 C: <linked-error> linked-error
 
-: ?linked dup linked-error? [ rethrow ] when ;
+: ?linked ( message -- message )
+    dup linked-error? [ rethrow ] when ;
 
 TUPLE: linked-thread < thread supervisor ;
 
diff --git a/extra/concurrency/messaging/authors.txt b/basis/concurrency/messaging/authors.txt
similarity index 100%
rename from extra/concurrency/messaging/authors.txt
rename to basis/concurrency/messaging/authors.txt
diff --git a/extra/concurrency/messaging/messaging-docs.factor b/basis/concurrency/messaging/messaging-docs.factor
similarity index 96%
rename from extra/concurrency/messaging/messaging-docs.factor
rename to basis/concurrency/messaging/messaging-docs.factor
index 1219982f51..6c9e530d9b 100755
--- a/extra/concurrency/messaging/messaging-docs.factor
+++ b/basis/concurrency/messaging/messaging-docs.factor
@@ -56,19 +56,19 @@ ARTICLE: { "concurrency" "synchronous-sends" } "Synchronous sends"
     "USING: concurrency.messaging kernel threads ;"
     ": pong-server ( -- )"
     "    receive >r \"pong\" r> reply-synchronous ;"
-    "[ pong-server t ] spawn-server"
+    "[ pong-server t ] \"pong-server\" spawn-server"
     "\"ping\" swap send-synchronous ."
     "\"pong\""
 } ;
 
 ARTICLE: { "concurrency" "exceptions" } "Linked exceptions"
 "A thread can handle exceptions using the standard Factor exception handling mechanism. If an exception is uncaught the thread will terminate. For example:" 
-{ $code "[ 1 0 / \"This will not print\" print ] spawn" } 
+{ $code "[ 1 0 / \"This will not print\" print ] \"division-by-zero\" spawn" } 
 "Processes can be linked so that a parent thread can receive the exception that caused the child thread to terminate. In this way 'supervisor' threades can be created that are notified when child threades terminate and possibly restart them."
 { $subsection spawn-linked }
 "This will create a unidirectional link, such that if an uncaught exception causes the child to terminate, the parent thread can catch it:"
 { $code "["
-"  [ 1 0 / \"This will not print\" print ] spawn-linked drop"
+"  [ 1 0 / \"This will not print\" print ] \"linked-division\" spawn-linked drop"
 "  receive"
 "] [ \"Exception caught.\" print ] recover" } 
 "Exceptions are only raised in the parent when the parent does a " { $link receive } " or " { $link receive-if } ". This is because the exception is sent from the child to the parent as a message." ;
diff --git a/extra/concurrency/messaging/messaging-tests.factor b/basis/concurrency/messaging/messaging-tests.factor
similarity index 85%
rename from extra/concurrency/messaging/messaging-tests.factor
rename to basis/concurrency/messaging/messaging-tests.factor
index 00184bac05..0f9f97c4cc 100755
--- a/extra/concurrency/messaging/messaging-tests.factor
+++ b/basis/concurrency/messaging/messaging-tests.factor
@@ -2,12 +2,12 @@
 ! See http://factorcode.org/license.txt for BSD license.
 !
 USING: kernel threads vectors arrays sequences
-namespaces tools.test continuations dlists strings math words
+namespaces tools.test continuations deques strings math words
 match quotations concurrency.messaging concurrency.mailboxes
 concurrency.count-downs accessors ;
 IN: concurrency.messaging.tests
 
-[ ] [ my-mailbox mailbox-data dlist-delete-all ] unit-test
+[ ] [ my-mailbox data>> clear-deque ] unit-test
 
 [ "received" ] [ 
     [
@@ -47,7 +47,7 @@ SYMBOL: exit
     } match-cond ;
 
 [ -5 ] [
-    [ 0 [ counter ] [ ] [ ] while ] "Counter" spawn "counter" set
+    [ 0 [ counter ] loop ] "Counter" spawn "counter" set
     { increment 10 } "counter" get send
     { decrement 15 } "counter" get send
     [ value , self , ] { } make "counter" get send
@@ -64,4 +64,4 @@ SYMBOL: exit
 !     receive drop
 ! ] "Bad synchronous send" spawn "t" set
 
-! [ 3 "t" get send-synchronous ] must-fail
\ No newline at end of file
+! [ 3 "t" get send-synchronous ] must-fail
diff --git a/extra/concurrency/messaging/messaging.factor b/basis/concurrency/messaging/messaging.factor
similarity index 83%
rename from extra/concurrency/messaging/messaging.factor
rename to basis/concurrency/messaging/messaging.factor
index 66c5e421fa..12b5d270d4 100755
--- a/extra/concurrency/messaging/messaging.factor
+++ b/basis/concurrency/messaging/messaging.factor
@@ -4,20 +4,20 @@
 ! Concurrency library for Factor, based on Erlang/Termite style
 ! concurrency.
 USING: kernel threads concurrency.mailboxes continuations
-namespaces assocs random ;
+namespaces assocs random accessors ;
 IN: concurrency.messaging
 
 GENERIC: send ( message thread -- )
 
 : mailbox-of ( thread -- mailbox )
-    dup thread-mailbox [ ] [
-        <mailbox> dup rot set-thread-mailbox
+    dup mailbox>> [ ] [
+        <mailbox> [ >>mailbox drop ] keep
     ] ?if ;
 
 M: thread send ( message thread -- )
     check-registered mailbox-of mailbox-put ;
 
-: my-mailbox self mailbox-of ;
+: my-mailbox ( -- mailbox ) self mailbox-of ;
 
 : receive ( -- message )
     my-mailbox mailbox-get ?linked ;
@@ -45,11 +45,11 @@ TUPLE: synchronous data sender tag ;
 TUPLE: reply data tag ;
 
 : <reply> ( data synchronous -- reply )
-    synchronous-tag \ reply boa ;
+    tag>> \ reply boa ;
 
 : synchronous-reply? ( response synchronous -- ? )
     over reply?
-    [ >r reply-tag r> synchronous-tag = ]
+    [ >r tag>> r> tag>> = ]
     [ 2drop f ] if ;
 
 : send-synchronous ( message thread -- reply )
@@ -58,15 +58,15 @@ TUPLE: reply data tag ;
     ] [
         >r <synchronous> dup r> send
         [ synchronous-reply? ] curry receive-if
-        reply-data
+        data>>
     ] if ;
 
 : reply-synchronous ( message synchronous -- )
-    [ <reply> ] keep synchronous-sender send ;
+    [ <reply> ] keep sender>> send ;
 
 : handle-synchronous ( quot -- )
     receive [
-        synchronous-data swap call
+        data>> swap call
     ] keep reply-synchronous ; inline
 
 <PRIVATE
diff --git a/extra/concurrency/messaging/summary.txt b/basis/concurrency/messaging/summary.txt
similarity index 100%
rename from extra/concurrency/messaging/summary.txt
rename to basis/concurrency/messaging/summary.txt
diff --git a/extra/concurrency/promises/authors.txt b/basis/concurrency/promises/authors.txt
similarity index 100%
rename from extra/concurrency/promises/authors.txt
rename to basis/concurrency/promises/authors.txt
diff --git a/extra/concurrency/promises/promises-docs.factor b/basis/concurrency/promises/promises-docs.factor
similarity index 100%
rename from extra/concurrency/promises/promises-docs.factor
rename to basis/concurrency/promises/promises-docs.factor
diff --git a/extra/concurrency/promises/promises-tests.factor b/basis/concurrency/promises/promises-tests.factor
similarity index 100%
rename from extra/concurrency/promises/promises-tests.factor
rename to basis/concurrency/promises/promises-tests.factor
diff --git a/extra/concurrency/promises/promises.factor b/basis/concurrency/promises/promises.factor
similarity index 70%
rename from extra/concurrency/promises/promises.factor
rename to basis/concurrency/promises/promises.factor
index b432d63bfc..511decdf35 100755
--- a/extra/concurrency/promises/promises.factor
+++ b/basis/concurrency/promises/promises.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2005, 2008 Chris Double, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: concurrency.mailboxes kernel continuations ;
+USING: accessors concurrency.mailboxes kernel continuations ;
 IN: concurrency.promises
 
 TUPLE: promise mailbox ;
@@ -9,17 +9,17 @@ TUPLE: promise mailbox ;
     <mailbox> promise boa ;
 
 : promise-fulfilled? ( promise -- ? )
-    promise-mailbox mailbox-empty? not ;
+    mailbox>> mailbox-empty? not ;
 
 : fulfill ( value promise -- )
     dup promise-fulfilled? [ 
         "Promise already fulfilled" throw
     ] [
-        promise-mailbox mailbox-put
+        mailbox>> mailbox-put
     ] if ;
 
 : ?promise-timeout ( promise timeout -- result )
-    >r promise-mailbox r> block-if-empty mailbox-peek ;
+    >r mailbox>> r> block-if-empty mailbox-peek ;
 
 : ?promise ( promise -- result )
     f ?promise-timeout ;
diff --git a/extra/concurrency/promises/summary.txt b/basis/concurrency/promises/summary.txt
similarity index 100%
rename from extra/concurrency/promises/summary.txt
rename to basis/concurrency/promises/summary.txt
diff --git a/core/inference/known-words/authors.txt b/basis/concurrency/semaphores/authors.txt
similarity index 100%
rename from core/inference/known-words/authors.txt
rename to basis/concurrency/semaphores/authors.txt
diff --git a/extra/concurrency/semaphores/semaphores-docs.factor b/basis/concurrency/semaphores/semaphores-docs.factor
similarity index 96%
rename from extra/concurrency/semaphores/semaphores-docs.factor
rename to basis/concurrency/semaphores/semaphores-docs.factor
index 33f4de8783..379fd6a3a0 100755
--- a/extra/concurrency/semaphores/semaphores-docs.factor
+++ b/basis/concurrency/semaphores/semaphores-docs.factor
@@ -30,7 +30,7 @@ HELP: with-semaphore
 { $description "Calls the quotation with the semaphore held." } ;
 
 ARTICLE: "concurrency.semaphores" "Counting semaphores"
-"Counting semaphores are used to ensure that no more than a fixed number of threads are executing in a critical section at a time; as such, they generalize " { $link "concurrency.locks.mutex" } ", since locks can be thought of as semaphores with an initial count of 1."
+"Counting semaphores are used to ensure that no more than a fixed number of threads are executing in a critical section at a time; as such, they generalize " { $vocab-link "concurrency.locks" } ", since locks can be thought of as semaphores with an initial count of 1."
 $nl
 "A use-case would be a batch processing server which runs a large number of jobs which perform calculations but then need to fire off expensive external processes or perform heavy network I/O. While for most of the time, the threads can all run in parallel, it might be desired that the expensive operation is not run by more than 10 threads at once, to avoid thrashing swap space or saturating the network. This can be accomplished with a counting semaphore:"
 { $code
diff --git a/extra/concurrency/semaphores/semaphores.factor b/basis/concurrency/semaphores/semaphores.factor
similarity index 64%
rename from extra/concurrency/semaphores/semaphores.factor
rename to basis/concurrency/semaphores/semaphores.factor
index 8b88c540bc..1b55c7afa5 100755
--- a/extra/concurrency/semaphores/semaphores.factor
+++ b/basis/concurrency/semaphores/semaphores.factor
@@ -1,29 +1,34 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: dlists kernel threads math concurrency.conditions
-continuations ;
+continuations accessors summary ;
 IN: concurrency.semaphores
 
 TUPLE: semaphore count threads ;
 
+ERROR: negative-count-semaphore ;
+
+M: negative-count-semaphore summary
+    drop "Cannot have semaphore with negative count" ;
+
 : <semaphore> ( n -- semaphore )
-    dup 0 < [ "Cannot have semaphore with negative count" throw ] when
+    dup 0 < [ negative-count-semaphore ] when
     <dlist> semaphore boa ;
 
 : wait-to-acquire ( semaphore timeout -- )
-    >r semaphore-threads r> "semaphore" wait ;
+    [ threads>> ] dip "semaphore" wait ;
 
 : acquire-timeout ( semaphore timeout -- )
-    over semaphore-count zero?
+    over count>> zero?
     [ dupd wait-to-acquire ] [ drop ] if
-    dup semaphore-count 1- swap set-semaphore-count ;
+    [ 1- ] change-count drop ;
 
 : acquire ( semaphore -- )
     f acquire-timeout ;
 
 : release ( semaphore -- )
-    dup semaphore-count 1+ over set-semaphore-count
-    semaphore-threads notify-1 ;
+    [ 1+ ] change-count
+    threads>> notify-1 ;
 
 : with-semaphore-timeout ( semaphore timeout quot -- )
     pick rot acquire-timeout swap
diff --git a/extra/concurrency/semaphores/summary.txt b/basis/concurrency/semaphores/summary.txt
similarity index 100%
rename from extra/concurrency/semaphores/summary.txt
rename to basis/concurrency/semaphores/summary.txt
diff --git a/core/inference/state/authors.txt b/basis/core-foundation/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from core/inference/state/authors.txt
rename to basis/core-foundation/authors.txt
diff --git a/extra/core-foundation/core-foundation-docs.factor b/basis/core-foundation/core-foundation-docs.factor
similarity index 74%
rename from extra/core-foundation/core-foundation-docs.factor
rename to basis/core-foundation/core-foundation-docs.factor
index ef8f5842a2..d577c523cf 100644
--- a/extra/core-foundation/core-foundation-docs.factor
+++ b/basis/core-foundation/core-foundation-docs.factor
@@ -1,4 +1,4 @@
-USING: alien strings arrays help.markup help.syntax ;
+USING: alien strings arrays help.markup help.syntax destructors ;
 IN: core-foundation
 
 HELP: CF>array
@@ -37,6 +37,16 @@ HELP: load-framework
 { $values { "name" "a pathname string" } }
 { $description "Loads a Core Foundation framework." } ;
 
+HELP: &CFRelease
+{ $values { "alien" "Pointer to a Core Foundation object" } }
+{ $description "Marks the given Core Foundation object for unconditional release via " { $link CFRelease } " at the end of the enclosing " { $link with-destructors } " scope." } ;
+
+HELP: |CFRelease
+{ $values { "alien" "Pointer to a Core Foundation object" } }
+{ $description "Marks the given Core Foundation object for release via " { $link CFRelease } " in the event of an error at the end of the enclosing " { $link with-destructors } " scope." } ;
+
+{ CFRelease |CFRelease &CFRelease } related-words
+
 ARTICLE: "core-foundation" "Core foundation utilities"
 "The " { $vocab-link "core-foundation" } " vocabulary defines bindings for some frequently-used Core Foundation functions. It also provides some utility words."
 $nl
@@ -51,7 +61,9 @@ $nl
 { $subsection <CFFileSystemURL> }
 { $subsection <CFURL> }
 "Frameworks:"
-{ $subsection load-framework } ;
+{ $subsection load-framework }
+"Memory management:"
+{ $subsection &CFRelease }
+{ $subsection |CFRelease } ;
 
-IN: core-foundation
 ABOUT: "core-foundation"
diff --git a/extra/core-foundation/core-foundation.factor b/basis/core-foundation/core-foundation.factor
similarity index 54%
rename from extra/core-foundation/core-foundation.factor
rename to basis/core-foundation/core-foundation.factor
index a4bd24ccca..e51b19645a 100644
--- a/extra/core-foundation/core-foundation.factor
+++ b/basis/core-foundation/core-foundation.factor
@@ -1,21 +1,53 @@
 ! Copyright (C) 2006, 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types alien.strings alien.syntax kernel
-math sequences io.encodings.utf16 ;
+math sequences io.encodings.utf16 destructors accessors ;
 IN: core-foundation
 
 TYPEDEF: void* CFAllocatorRef
 TYPEDEF: void* CFArrayRef
+TYPEDEF: void* CFDataRef
+TYPEDEF: void* CFDictionaryRef
+TYPEDEF: void* CFMutableDictionaryRef
+TYPEDEF: void* CFNumberRef
 TYPEDEF: void* CFBundleRef
+TYPEDEF: void* CFSetRef
 TYPEDEF: void* CFStringRef
 TYPEDEF: void* CFURLRef
 TYPEDEF: void* CFUUIDRef
+TYPEDEF: void* CFTypeRef
 TYPEDEF: bool Boolean
 TYPEDEF: int CFIndex
 TYPEDEF: int SInt32
+TYPEDEF: uint UInt32
+TYPEDEF: uint CFTypeID
 TYPEDEF: double CFTimeInterval
 TYPEDEF: double CFAbsoluteTime
 
+TYPEDEF: int CFNumberType
+: kCFNumberSInt8Type 1 ; inline
+: kCFNumberSInt16Type 2 ; inline
+: kCFNumberSInt32Type 3 ; inline
+: kCFNumberSInt64Type 4 ; inline
+: kCFNumberFloat32Type 5 ; inline
+: kCFNumberFloat64Type 6 ; inline
+: kCFNumberCharType 7 ; inline
+: kCFNumberShortType 8 ; inline
+: kCFNumberIntType 9 ; inline
+: kCFNumberLongType 10 ; inline
+: kCFNumberLongLongType 11 ; inline
+: kCFNumberFloatType 12 ; inline
+: kCFNumberDoubleType 13 ; inline
+: kCFNumberCFIndexType 14 ; inline
+: kCFNumberNSIntegerType 15 ; inline
+: kCFNumberCGFloatType 16 ; inline
+: kCFNumberMaxType 16 ; inline
+
+TYPEDEF: int CFPropertyListMutabilityOptions
+: kCFPropertyListImmutable                  0 ; inline
+: kCFPropertyListMutableContainers          1 ; inline
+: kCFPropertyListMutableContainersAndLeaves 2 ; inline
+
 FUNCTION: CFArrayRef CFArrayCreateMutable ( CFAllocatorRef allocator, CFIndex capacity, void* callbacks ) ;
 
 FUNCTION: void* CFArrayGetValueAtIndex ( CFArrayRef array, CFIndex idx ) ;
@@ -24,7 +56,8 @@ FUNCTION: void CFArraySetValueAtIndex ( CFArrayRef array, CFIndex index, void* v
 
 FUNCTION: CFIndex CFArrayGetCount ( CFArrayRef array ) ;
 
-: kCFURLPOSIXPathStyle 0 ;
+: kCFURLPOSIXPathStyle 0 ; inline
+: kCFAllocatorDefault f ; inline
 
 FUNCTION: CFURLRef CFURLCreateWithFileSystemPath ( CFAllocatorRef allocator, CFStringRef filePath, int pathStyle, Boolean isDirectory ) ;
 
@@ -38,11 +71,18 @@ FUNCTION: CFIndex CFStringGetLength ( CFStringRef theString ) ;
 
 FUNCTION: void CFStringGetCharacters ( void* theString, CFIndex start, CFIndex length, void* buffer ) ;
 
+FUNCTION: CFNumberRef CFNumberCreate ( CFAllocatorRef allocator, CFNumberType theType, void* valuePtr ) ;
+
+FUNCTION: CFDataRef CFDataCreate ( CFAllocatorRef allocator, uchar* bytes, CFIndex length ) ;
+
 FUNCTION: CFBundleRef CFBundleCreate ( CFAllocatorRef allocator, CFURLRef bundleURL ) ;
 
 FUNCTION: Boolean CFBundleLoadExecutable ( CFBundleRef bundle ) ;
 
-FUNCTION: void CFRelease ( void* cf ) ;
+FUNCTION: CFTypeRef CFRetain ( CFTypeRef cf ) ;
+FUNCTION: void CFRelease ( CFTypeRef cf ) ;
+
+FUNCTION: CFTypeID CFGetTypeID ( CFTypeRef cf ) ;
 
 : CF>array ( alien -- array )
     dup CFArrayGetCount [ CFArrayGetValueAtIndex ] with map ;
@@ -80,9 +120,29 @@ FUNCTION: void CFRelease ( void* cf ) ;
         f swap CFBundleCreate
     ] keep CFRelease ;
 
+GENERIC: <CFNumber> ( number -- alien )
+M: integer <CFNumber>
+    [ f kCFNumberLongLongType ] dip <longlong> CFNumberCreate ;
+M: float <CFNumber>
+    [ f kCFNumberDoubleType ] dip <double> CFNumberCreate ;
+M: t <CFNumber>
+    drop f kCFNumberIntType 1 <int> CFNumberCreate ;
+M: f <CFNumber>
+    drop f kCFNumberIntType 0 <int> CFNumberCreate ;
+
+: <CFData> ( byte-array -- alien )
+    [ f ] dip dup length CFDataCreate ;
+
 : load-framework ( name -- )
     dup <CFBundle> [
         CFBundleLoadExecutable drop
     ] [
-        "Cannot load bundled named " prepend throw
+        "Cannot load bundle named " prepend throw
     ] ?if ;
+
+TUPLE: CFRelease-destructor alien disposed ;
+M: CFRelease-destructor dispose* alien>> CFRelease ;
+: &CFRelease ( alien -- alien )
+    dup f CFRelease-destructor boa &dispose drop ; inline
+: |CFRelease ( alien -- alien )
+    dup f CFRelease-destructor boa |dispose drop ; inline
diff --git a/extra/core-foundation/fsevents/fsevents.factor b/basis/core-foundation/fsevents/fsevents.factor
similarity index 98%
rename from extra/core-foundation/fsevents/fsevents.factor
rename to basis/core-foundation/fsevents/fsevents.factor
index 261e1d045a..f14dba6433 100644
--- a/extra/core-foundation/fsevents/fsevents.factor
+++ b/basis/core-foundation/fsevents/fsevents.factor
@@ -149,7 +149,8 @@ FUNCTION: CFStringRef FSEventStreamCopyDescription ( FSEventStreamRef streamRef
 
 SYMBOL: event-stream-callbacks
 
-: event-stream-counter \ event-stream-counter counter ;
+: event-stream-counter ( -- n )
+    \ event-stream-counter counter ;
 
 [
     event-stream-callbacks global
diff --git a/basis/core-foundation/fsevents/tags.txt b/basis/core-foundation/fsevents/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/core-foundation/fsevents/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/core-foundation/run-loop/run-loop.factor b/basis/core-foundation/run-loop/run-loop.factor
similarity index 95%
rename from extra/core-foundation/run-loop/run-loop.factor
rename to basis/core-foundation/run-loop/run-loop.factor
index 7594766635..5ffcafbbaf 100644
--- a/extra/core-foundation/run-loop/run-loop.factor
+++ b/basis/core-foundation/run-loop/run-loop.factor
@@ -12,6 +12,7 @@ IN: core-foundation.run-loop
 TYPEDEF: void* CFRunLoopRef
 
 FUNCTION: CFRunLoopRef CFRunLoopGetMain ( ) ;
+FUNCTION: CFRunLoopRef CFRunLoopGetCurrent ( ) ;
 
 FUNCTION: SInt32 CFRunLoopRunInMode (
    CFStringRef mode,
diff --git a/basis/core-foundation/run-loop/tags.txt b/basis/core-foundation/run-loop/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/core-foundation/run-loop/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/core-foundation/summary.txt b/basis/core-foundation/summary.txt
similarity index 100%
rename from extra/core-foundation/summary.txt
rename to basis/core-foundation/summary.txt
diff --git a/basis/core-foundation/tags.txt b/basis/core-foundation/tags.txt
new file mode 100644
index 0000000000..2320bdd648
--- /dev/null
+++ b/basis/core-foundation/tags.txt
@@ -0,0 +1,2 @@
+unportable
+bindings
diff --git a/core/cpu/architecture/architecture.factor b/basis/cpu/architecture/architecture.factor
similarity index 93%
rename from core/cpu/architecture/architecture.factor
rename to basis/cpu/architecture/architecture.factor
index 338c5341bc..fc11e0a731 100755
--- a/core/cpu/architecture/architecture.factor
+++ b/basis/cpu/architecture/architecture.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays generic kernel kernel.private math memory
 namespaces sequences layouts system hashtables classes alien
-byte-arrays bit-arrays float-arrays combinators words sets ;
+byte-arrays combinators words sets ;
 IN: cpu.architecture
 
 ! Register classes
@@ -41,12 +41,12 @@ HOOK: stack-frame cpu ( frame-size -- n )
 ! Set up caller stack frame
 HOOK: %prologue cpu ( n -- )
 
-: %prologue-later \ %prologue-later , ;
+: %prologue-later ( -- ) \ %prologue-later , ;
 
 ! Tear down stack frame
 HOOK: %epilogue cpu ( n -- )
 
-: %epilogue-later \ %epilogue-later , ;
+: %epilogue-later ( -- ) \ %epilogue-later , ;
 
 ! Store word XT in stack frame
 HOOK: %save-word-xt cpu ( -- )
@@ -150,6 +150,8 @@ HOOK: %alien-indirect cpu ( -- )
 
 M: stack-params param-reg drop ;
 
+M: stack-params param-regs drop f ;
+
 GENERIC: v>operand ( obj -- operand )
 
 M: integer v>operand tag-fixnum ;
@@ -162,11 +164,9 @@ PREDICATE: small-slot < integer cells small-enough? ;
 
 PREDICATE: small-tagged < integer v>operand small-enough? ;
 
-PREDICATE: inline-array < integer 32 < ;
-
 : if-small-struct ( n size true false -- ? )
-    >r >r over not over struct-small-enough? and
-    [ nip r> call r> drop ] [ r> drop r> call ] if ;
+    [ over not over struct-small-enough? and ] 2dip
+    [ [ nip ] prepose ] dip if ;
     inline
 
 : %unbox-struct ( n size -- )
@@ -195,7 +195,7 @@ HOOK: %unbox-any-c-ptr cpu ( dst src -- )
 HOOK: %box-alien cpu ( dst src -- )
 
 ! GC check
-HOOK: %gc cpu
+HOOK: %gc cpu ( -- )
 
 : operand ( var -- op ) get v>operand ; inline
 
diff --git a/core/inference/transforms/authors.txt b/basis/cpu/architecture/authors.txt
similarity index 100%
rename from core/inference/transforms/authors.txt
rename to basis/cpu/architecture/authors.txt
diff --git a/core/cpu/architecture/summary.txt b/basis/cpu/architecture/summary.txt
similarity index 100%
rename from core/cpu/architecture/summary.txt
rename to basis/cpu/architecture/summary.txt
diff --git a/core/cpu/arm/tags.txt b/basis/cpu/architecture/tags.txt
similarity index 100%
rename from core/cpu/arm/tags.txt
rename to basis/cpu/architecture/tags.txt
diff --git a/core/cpu/ppc/allot/allot.factor b/basis/cpu/ppc/allot/allot.factor
similarity index 97%
rename from core/cpu/ppc/allot/allot.factor
rename to basis/cpu/ppc/allot/allot.factor
index 49c77c65ed..5868316577 100755
--- a/core/cpu/ppc/allot/allot.factor
+++ b/basis/cpu/ppc/allot/allot.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel cpu.ppc.architecture cpu.ppc.assembler
 kernel.private namespaces math sequences generic arrays
-generator generator.registers generator.fixup system layouts
+compiler.generator compiler.generator.registers
+compiler.generator.fixup system layouts
 cpu.architecture alien ;
 IN: cpu.ppc.allot
 
diff --git a/core/inspector/authors.txt b/basis/cpu/ppc/allot/authors.txt
similarity index 100%
rename from core/inspector/authors.txt
rename to basis/cpu/ppc/allot/authors.txt
diff --git a/core/cpu/ppc/allot/summary.txt b/basis/cpu/ppc/allot/summary.txt
similarity index 100%
rename from core/cpu/ppc/allot/summary.txt
rename to basis/cpu/ppc/allot/summary.txt
diff --git a/basis/cpu/ppc/allot/tags.txt b/basis/cpu/ppc/allot/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/ppc/allot/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/architecture/architecture.factor b/basis/cpu/ppc/architecture/architecture.factor
similarity index 92%
rename from core/cpu/ppc/architecture/architecture.factor
rename to basis/cpu/ppc/architecture/architecture.factor
index 70345b1e96..0aee836cf1 100755
--- a/core/cpu/ppc/architecture/architecture.factor
+++ b/basis/cpu/ppc/architecture/architecture.factor
@@ -1,8 +1,9 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien.c-types cpu.ppc.assembler cpu.architecture generic
-kernel kernel.private math memory namespaces sequences words
-assocs generator generator.registers generator.fixup system
+USING: accessors alien.c-types cpu.ppc.assembler
+cpu.architecture generic kernel kernel.private math memory
+namespaces sequences words assocs compiler.generator
+compiler.generator.registers compiler.generator.fixup system
 layouts classes words.private alien combinators
 compiler.constants math.order ;
 IN: cpu.ppc.architecture
@@ -17,13 +18,13 @@ IN: cpu.ppc.architecture
 : ds-reg 14 ; inline
 : rs-reg 15 ; inline
 
-: reserved-area-size
+: reserved-area-size ( -- n )
     os {
         { linux [ 2 ] }
         { macosx [ 6 ] }
     } case cells ; foldable
 
-: lr-save
+: lr-save ( -- n )
     os {
         { linux [ 1 ] }
         { macosx [ 2 ] }
@@ -31,12 +32,12 @@ IN: cpu.ppc.architecture
 
 : param@ ( n -- x ) reserved-area-size + ; inline
 
-: param-save-size 8 cells ; foldable
+: param-save-size ( -- n ) 8 cells ; foldable
 
 : local@ ( n -- x )
     reserved-area-size param-save-size + + ; inline
 
-: factor-area-size 2 cells ;
+: factor-area-size ( -- n ) 2 cells ; foldable
 
 : next-save ( n -- i ) cell - ;
 
@@ -65,8 +66,8 @@ M: float-regs vregs drop { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 } ;
 
 GENERIC: loc>operand ( loc -- reg n )
 
-M: ds-loc loc>operand ds-loc-n cells neg ds-reg swap ;
-M: rs-loc loc>operand rs-loc-n cells neg rs-reg swap ;
+M: ds-loc loc>operand n>> cells neg ds-reg swap ;
+M: rs-loc loc>operand n>> cells neg rs-reg swap ;
 
 M: immediate load-literal
     [ v>operand ] bi@ LOAD ;
@@ -95,9 +96,9 @@ M: ppc %epilogue ( n -- )
     1 1 rot ADDI
     0 MTLR ;
 
-: (%call) 11 MTLR BLRL ;
+: (%call) ( -- ) 11 MTLR BLRL ;
 
-: (%jump) 11 MTCTR BCTR ;
+: (%jump) ( -- ) 11 MTCTR BCTR ;
 
 : %load-dlsym ( symbol dll register -- )
     0 swap LOAD32 rc-absolute-ppc-2/2 rel-dlsym ;
@@ -217,7 +218,7 @@ M: ppc %box-long-long ( n func -- )
         4 1 rot cell + local@ LWZ
     ] when* r> f %alien-invoke ;
 
-: temp@ stack-frame* factor-area-size - swap - ;
+: temp@ ( m -- n ) stack-frame* factor-area-size - swap - ;
 
 : struct-return@ ( size n -- n ) [ local@ ] [ temp@ ] ?if ;
 
diff --git a/core/io/styles/authors.txt b/basis/cpu/ppc/architecture/authors.txt
similarity index 100%
rename from core/io/styles/authors.txt
rename to basis/cpu/ppc/architecture/authors.txt
diff --git a/core/cpu/ppc/architecture/summary.txt b/basis/cpu/ppc/architecture/summary.txt
similarity index 100%
rename from core/cpu/ppc/architecture/summary.txt
rename to basis/cpu/ppc/architecture/summary.txt
diff --git a/basis/cpu/ppc/architecture/tags.txt b/basis/cpu/ppc/architecture/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/ppc/architecture/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/cpu/ppc/assembler/assembler-tests.factor b/basis/cpu/ppc/assembler/assembler-tests.factor
new file mode 100644
index 0000000000..9fdaaf712f
--- /dev/null
+++ b/basis/cpu/ppc/assembler/assembler-tests.factor
@@ -0,0 +1,118 @@
+IN: cpu.ppc.assembler.tests
+USING: cpu.ppc.assembler tools.test arrays kernel namespaces
+vocabs sequences ;
+
+: test-assembler ( expected quot -- )
+    [ 1array ] [ [ { } make ] curry ] bi* unit-test ;
+
+{ HEX: 38220003 } [ 1 2 3 ADDI ] test-assembler
+{ HEX: 3c220003 } [ 1 2 3 ADDIS ] test-assembler
+{ HEX: 30220003 } [ 1 2 3 ADDIC ] test-assembler
+{ HEX: 34220003 } [ 1 2 3 ADDIC. ] test-assembler
+{ HEX: 38400001 } [ 1 2 LI ] test-assembler
+{ HEX: 3c400001 } [ 1 2 LIS ] test-assembler
+{ HEX: 3822fffd } [ 1 2 3 SUBI ] test-assembler
+{ HEX: 1c220003 } [ 1 2 3 MULI ] test-assembler
+{ HEX: 7c221a14 } [ 1 2 3 ADD ] test-assembler
+{ HEX: 7c221a15 } [ 1 2 3 ADD. ] test-assembler
+{ HEX: 7c221e14 } [ 1 2 3 ADDO ] test-assembler
+{ HEX: 7c221e15 } [ 1 2 3 ADDO. ] test-assembler
+{ HEX: 7c221814 } [ 1 2 3 ADDC ] test-assembler
+{ HEX: 7c221815 } [ 1 2 3 ADDC. ] test-assembler
+{ HEX: 7c221e14 } [ 1 2 3 ADDO ] test-assembler
+{ HEX: 7c221c15 } [ 1 2 3 ADDCO. ] test-assembler
+{ HEX: 7c221914 } [ 1 2 3 ADDE ] test-assembler
+{ HEX: 7c411838 } [ 1 2 3 AND ] test-assembler
+{ HEX: 7c411839 } [ 1 2 3 AND. ] test-assembler
+{ HEX: 7c221bd6 } [ 1 2 3 DIVW ] test-assembler
+{ HEX: 7c221b96 } [ 1 2 3 DIVWU ] test-assembler
+{ HEX: 7c411a38 } [ 1 2 3 EQV ] test-assembler
+{ HEX: 7c411bb8 } [ 1 2 3 NAND ] test-assembler
+{ HEX: 7c4118f8 } [ 1 2 3 NOR ] test-assembler
+{ HEX: 7c4110f8 } [ 1 2 NOT ] test-assembler
+{ HEX: 60410003 } [ 1 2 3 ORI ] test-assembler
+{ HEX: 64410003 } [ 1 2 3 ORIS ] test-assembler
+{ HEX: 7c411b78 } [ 1 2 3 OR ] test-assembler
+{ HEX: 7c411378 } [ 1 2 MR ] test-assembler
+{ HEX: 7c221896 } [ 1 2 3 MULHW ] test-assembler
+{ HEX: 1c220003 } [ 1 2 3 MULLI ] test-assembler
+{ HEX: 7c221816 } [ 1 2 3 MULHWU ] test-assembler
+{ HEX: 7c2219d6 } [ 1 2 3 MULLW ] test-assembler
+{ HEX: 7c411830 } [ 1 2 3 SLW ] test-assembler
+{ HEX: 7c411e30 } [ 1 2 3 SRAW ] test-assembler
+{ HEX: 7c411c30 } [ 1 2 3 SRW ] test-assembler
+{ HEX: 7c411e70 } [ 1 2 3 SRAWI ] test-assembler
+{ HEX: 7c221850 } [ 1 2 3 SUBF ] test-assembler
+{ HEX: 7c221810 } [ 1 2 3 SUBFC ] test-assembler
+{ HEX: 7c221910 } [ 1 2 3 SUBFE ] test-assembler
+{ HEX: 7c410774 } [ 1 2 EXTSB ] test-assembler
+{ HEX: 68410003 } [ 1 2 3 XORI ] test-assembler
+{ HEX: 7c411a78 } [ 1 2 3 XOR ] test-assembler
+{ HEX: 7c2200d0 } [ 1 2 NEG ] test-assembler
+{ HEX: 2c220003 } [ 1 2 3 CMPI ] test-assembler
+{ HEX: 28220003 } [ 1 2 3 CMPLI ] test-assembler
+{ HEX: 7c411800 } [ 1 2 3 CMP ] test-assembler
+{ HEX: 5422190a } [ 1 2 3 4 5 RLWINM ] test-assembler
+{ HEX: 54221838 } [ 1 2 3 SLWI ] test-assembler
+{ HEX: 5422e8fe } [ 1 2 3 SRWI ] test-assembler
+{ HEX: 88220003 } [ 1 2 3 LBZ ] test-assembler
+{ HEX: 8c220003 } [ 1 2 3 LBZU ] test-assembler
+{ HEX: a8220003 } [ 1 2 3 LHA ] test-assembler
+{ HEX: ac220003 } [ 1 2 3 LHAU ] test-assembler
+{ HEX: a0220003 } [ 1 2 3 LHZ ] test-assembler
+{ HEX: a4220003 } [ 1 2 3 LHZU ] test-assembler
+{ HEX: 80220003 } [ 1 2 3 LWZ ] test-assembler
+{ HEX: 84220003 } [ 1 2 3 LWZU ] test-assembler
+{ HEX: 7c4118ae } [ 1 2 3 LBZX ] test-assembler
+{ HEX: 7c4118ee } [ 1 2 3 LBZUX ] test-assembler
+{ HEX: 7c411aae } [ 1 2 3 LHAX ] test-assembler
+{ HEX: 7c411aee } [ 1 2 3 LHAUX ] test-assembler
+{ HEX: 7c411a2e } [ 1 2 3 LHZX ] test-assembler
+{ HEX: 7c411a6e } [ 1 2 3 LHZUX ] test-assembler
+{ HEX: 7c41182e } [ 1 2 3 LWZX ] test-assembler
+{ HEX: 7c41186e } [ 1 2 3 LWZUX ] test-assembler
+{ HEX: 48000001 } [ 1 B ] test-assembler
+{ HEX: 48000001 } [ 1 BL ] test-assembler
+{ HEX: 41800004 } [ 1 BLT ] test-assembler
+{ HEX: 41810004 } [ 1 BGT ] test-assembler
+{ HEX: 40810004 } [ 1 BLE ] test-assembler
+{ HEX: 40800004 } [ 1 BGE ] test-assembler
+{ HEX: 41800004 } [ 1 BLT ] test-assembler
+{ HEX: 40820004 } [ 1 BNE ] test-assembler
+{ HEX: 41820004 } [ 1 BEQ ] test-assembler
+{ HEX: 41830004 } [ 1 BO ] test-assembler
+{ HEX: 40830004 } [ 1 BNO ] test-assembler
+{ HEX: 4c200020 } [ 1 BCLR ] test-assembler
+{ HEX: 4e800020 } [ BLR ] test-assembler
+{ HEX: 4e800021 } [ BLRL ] test-assembler
+{ HEX: 4c200420 } [ 1 BCCTR ] test-assembler
+{ HEX: 4e800420 } [ BCTR ] test-assembler
+{ HEX: 7c6102a6 } [ 3 MFXER ] test-assembler
+{ HEX: 7c6802a6 } [ 3 MFLR ] test-assembler
+{ HEX: 7c6902a6 } [ 3 MFCTR ] test-assembler
+{ HEX: 7c6103a6 } [ 3 MTXER ] test-assembler
+{ HEX: 7c6803a6 } [ 3 MTLR ] test-assembler
+{ HEX: 7c6903a6 } [ 3 MTCTR ] test-assembler
+{ HEX: 7c6102a6 } [ 3 MFXER ] test-assembler
+{ HEX: 7c6802a6 } [ 3 MFLR ] test-assembler
+{ HEX: c0220003 } [ 1 2 3 LFS ] test-assembler
+{ HEX: c4220003 } [ 1 2 3 LFSU ] test-assembler
+{ HEX: c8220003 } [ 1 2 3 LFD ] test-assembler
+{ HEX: cc220003 } [ 1 2 3 LFDU ] test-assembler
+{ HEX: d0220003 } [ 1 2 3 STFS ] test-assembler
+{ HEX: d4220003 } [ 1 2 3 STFSU ] test-assembler
+{ HEX: d8220003 } [ 1 2 3 STFD ] test-assembler
+{ HEX: dc220003 } [ 1 2 3 STFDU ] test-assembler
+{ HEX: fc201048 } [ 1 2 FMR ] test-assembler
+{ HEX: fc20101e } [ 1 2 FCTIWZ ] test-assembler
+{ HEX: fc22182a } [ 1 2 3 FADD ] test-assembler
+{ HEX: fc22182b } [ 1 2 3 FADD. ] test-assembler
+{ HEX: fc221828 } [ 1 2 3 FSUB ] test-assembler
+{ HEX: fc2200f2 } [ 1 2 3 FMUL ] test-assembler
+{ HEX: fc221824 } [ 1 2 3 FDIV ] test-assembler
+{ HEX: fc20102c } [ 1 2 FSQRT ] test-assembler
+{ HEX: fc411800 } [ 1 2 3 FCMPU ] test-assembler
+{ HEX: fc411840 } [ 1 2 3 FCMPO ] test-assembler
+{ HEX: 3c601234 HEX: 60635678 } [ HEX: 12345678 3 LOAD ] test-assembler
+
+"cpu.ppc.assembler" words [ must-infer ] each
diff --git a/basis/cpu/ppc/assembler/assembler.factor b/basis/cpu/ppc/assembler/assembler.factor
new file mode 100755
index 0000000000..d7e71f6058
--- /dev/null
+++ b/basis/cpu/ppc/assembler/assembler.factor
@@ -0,0 +1,209 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: compiler.generator.fixup kernel namespaces words
+io.binary math math.order cpu.ppc.assembler.backend ;
+IN: cpu.ppc.assembler
+
+! See the Motorola or IBM documentation for details. The opcode
+! names are standard, and the operand order is the same as in
+! the docs, except a few differences, namely, in IBM/Motorola
+! assembler syntax, loads and stores are written like:
+!
+! stw r14,10(r15)
+!
+! In Factor, we write:
+!
+! 14 15 10 STW
+
+! D-form
+D: ADDI 14
+D: ADDIC 12
+D: ADDIC. 13
+D: ADDIS 15
+D: CMPI 11
+D: CMPLI 10
+D: LBZ 34
+D: LBZU 35
+D: LFD 50
+D: LFDU 51
+D: LFS 48
+D: LFSU 49
+D: LHA 42
+D: LHAU 43
+D: LHZ 40
+D: LHZU 41
+D: LWZ 32
+D: LWZU 33
+D: MULI 7
+D: MULLI 7
+D: STB 38
+D: STBU 39
+D: STFD 54
+D: STFDU 55
+D: STFS 52
+D: STFSU 53
+D: STH 44
+D: STHU 45
+D: STW 36
+D: STWU 37
+
+! SD-form
+SD: ANDI 28
+SD: ANDIS 29
+SD: ORI 24
+SD: ORIS 25
+SD: XORI 26
+SD: XORIS 27
+
+! X-form
+X: AND 0 28 31
+X: AND. 1 28 31
+X: CMP 0 0 31
+X: CMPL 0 32 31
+X: EQV 0 284 31
+X: EQV. 1 284 31
+X: FCMPO 0 32 63
+X: FCMPU 0 0 63
+X: LBZUX 0 119 31
+X: LBZX 0 87 31
+X: LHAUX 0 375 31
+X: LHAX 0 343 31
+X: LHZUX 0 311 31
+X: LHZX 0 279 31
+X: LWZUX 0 55 31
+X: LWZX 0 23 31
+X: NAND 0 476 31
+X: NAND. 1 476 31
+X: NOR 0 124 31
+X: NOR. 1 124 31
+X: OR 0 444 31
+X: OR. 1 444 31
+X: ORC 0 412 31
+X: ORC. 1 412 31
+X: SLW 0 24 31
+X: SLW. 1 24 31
+X: SRAW 0 792 31
+X: SRAW. 1 792 31
+X: SRAWI 0 824 31
+X: SRW 0 536 31
+X: SRW. 1 536 31
+X: STBUX 0 247 31
+X: STBX 0 215 31
+X: STHUX 0 439 31
+X: STHX 0 407 31
+X: STWUX 0 183 31
+X: STWX 0 151 31
+X: XOR 0 316 31
+X: XOR. 1 316 31
+X1: EXTSB 0 954 31
+X1: EXTSB. 1 954 31
+: FMR ( a s -- ) 0 -rot 72 0 63 x-insn ;
+: FMR. ( a s -- ) 0 -rot 72 1 63 x-insn ;
+: FCTIWZ ( a s -- ) 0 -rot 0 15 63 x-insn ;
+: FCTIWZ. ( a s -- ) 0 -rot 1 15 63 x-insn ;
+
+! XO-form
+XO: ADD 0 0 266 31
+XO: ADD. 0 1 266 31
+XO: ADDC 0 0 10 31
+XO: ADDC. 0 1 10 31
+XO: ADDCO 1 0 10 31
+XO: ADDCO. 1 1 10 31
+XO: ADDE 0 0 138 31
+XO: ADDE. 0 1 138 31
+XO: ADDEO 1 0 138 31
+XO: ADDEO. 1 1 138 31
+XO: ADDO 1 0 266 31
+XO: ADDO. 1 1 266 31
+XO: DIVW 0 0 491 31
+XO: DIVW. 0 1 491 31
+XO: DIVWO 1 0 491 31
+XO: DIVWO. 1 1 491 31
+XO: DIVWU 0 0 459 31
+XO: DIVWU. 0 1 459 31
+XO: DIVWUO 1 0 459 31
+XO: DIVWUO. 1 1 459 31
+XO: MULHW 0 0 75 31
+XO: MULHW. 0 1 75 31
+XO: MULHWU 0 0 11 31
+XO: MULHWU. 0 1 11 31
+XO: MULLW 0 0 235 31
+XO: MULLW. 0 1 235 31
+XO: MULLWO 1 0 235 31
+XO: MULLWO. 1 1 235 31
+XO: SUBF 0 0 40 31
+XO: SUBF. 0 1 40 31
+XO: SUBFC 0 0 8 31
+XO: SUBFC. 0 1 8 31
+XO: SUBFCO 1 0 8 31
+XO: SUBFCO. 1 1 8 31
+XO: SUBFE 0 0 136 31
+XO: SUBFE. 0 1 136 31
+XO: SUBFEO 1 0 136 31
+XO: SUBFEO. 1 1 136 31
+XO: SUBFO 1 0 40 31
+XO: SUBFO. 1 1 40 31
+XO1: NEG 0 0 104 31
+XO1: NEG. 0 1 104 31
+XO1: NEGO 1 0 104 31
+XO1: NEGO. 1 1 104 31
+
+! A-form
+: RLWINM ( d a b c xo -- ) 0 21 a-insn ;
+: RLWINM. ( d a b c xo -- ) 1 21 a-insn ;
+: FADD ( d a b -- ) 0 21 0 63 a-insn ;
+: FADD. ( d a b -- ) 0 21 1 63 a-insn ;
+: FSUB ( d a b -- ) 0 20 0 63 a-insn ;
+: FSUB. ( d a b -- ) 0 20 1 63 a-insn ;
+: FMUL ( d a c -- )  0 swap 25 0 63 a-insn ;
+: FMUL. ( d a c -- ) 0 swap 25 1 63 a-insn ;
+: FDIV ( d a b -- ) 0 18 0 63 a-insn ;
+: FDIV. ( d a b -- ) 0 18 1 63 a-insn ;
+: FSQRT ( d b -- ) 0 swap 0 22 0 63 a-insn ;
+: FSQRT. ( d b -- ) 0 swap 0 22 1 63 a-insn ;
+
+! Branches
+: B ( dest -- ) 0 0 (B) ;
+: BL ( dest -- ) 0 1 (B) ;
+BC: LT 12 0
+BC: GE 4 0
+BC: GT 12 1
+BC: LE 4 1
+BC: EQ 12 2
+BC: NE 4 2
+BC: O  12 3
+BC: NO 4 3
+B: CLR 0 8 0 0 19
+B: CLRL 0 8 0 1 19
+B: CCTR 0 264 0 0 19
+: BLR ( -- ) 20 BCLR ;
+: BLRL ( -- ) 20 BCLRL ;
+: BCTR ( -- ) 20 BCCTR ;
+
+! Special registers
+MFSPR: XER 1
+MFSPR: LR 8
+MFSPR: CTR 9
+MTSPR: XER 1
+MTSPR: LR 8
+MTSPR: CTR 9
+
+! Pseudo-instructions
+: LI 0 rot ADDI ; inline
+: SUBI neg ADDI ; inline
+: LIS 0 rot ADDIS ; inline
+: SUBIC neg ADDIC ; inline
+: SUBIC. neg ADDIC. ; inline
+: NOT dup NOR ; inline
+: NOT. dup NOR. ; inline
+: MR dup OR ; inline
+: MR. dup OR. ; inline
+: (SLWI) 0 31 pick - ; inline
+: SLWI ( d a b -- ) (SLWI) RLWINM ;
+: SLWI. ( d a b -- ) (SLWI) RLWINM. ;
+: (SRWI) 32 over - swap 31 ; inline
+: SRWI ( d a b -- ) (SRWI) RLWINM ;
+: SRWI. ( d a b -- ) (SRWI) RLWINM. ;
+: LOAD32 ( n r -- ) >r w>h/h r> tuck LIS dup rot ORI ;
+: immediate? ( n -- ? ) HEX: -8000 HEX: 7fff between? ;
+: LOAD ( n r -- ) over immediate? [ LI ] [ LOAD32 ] if ;
diff --git a/core/libc/authors.txt b/basis/cpu/ppc/assembler/authors.txt
similarity index 100%
rename from core/libc/authors.txt
rename to basis/cpu/ppc/assembler/authors.txt
diff --git a/basis/cpu/ppc/assembler/backend/backend.factor b/basis/cpu/ppc/assembler/backend/backend.factor
new file mode 100644
index 0000000000..b881f5a974
--- /dev/null
+++ b/basis/cpu/ppc/assembler/backend/backend.factor
@@ -0,0 +1,93 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: compiler.generator.fixup kernel namespaces sequences
+words math math.bitwise io.binary parser lexer ;
+IN: cpu.ppc.assembler.backend
+
+: insn ( operand opcode -- ) { 26 0 } bitfield , ;
+
+: a-insn ( d a b c xo rc opcode -- )
+    [ { 0 1 6 11 16 21 } bitfield ] dip insn ;
+
+: b-insn ( bo bi bd aa lk opcode -- )
+    [ { 0 1 2 16 21 } bitfield ] dip insn ;
+
+: s>u16 ( s -- u ) HEX: ffff bitand ;
+
+: d-insn ( d a simm opcode -- )
+    [ s>u16 { 0 16 21 } bitfield ] dip insn ;
+
+: define-d-insn ( word opcode -- )
+    [ d-insn ] curry (( d a simm -- )) define-declared ;
+
+: D: CREATE scan-word define-d-insn ; parsing
+
+: sd-insn ( d a simm opcode -- )
+    [ s>u16 { 0 21 16 } bitfield ] dip insn ;
+
+: define-sd-insn ( word opcode -- )
+    [ sd-insn ] curry (( d a simm -- )) define-declared ;
+
+: SD: CREATE scan-word define-sd-insn ; parsing
+
+: i-insn ( li aa lk opcode -- )
+    [ { 0 1 0 } bitfield ] dip insn ;
+
+: x-insn ( a s b rc xo opcode -- )
+    [ { 1 0 11 21 16 } bitfield ] dip insn ;
+
+: (X) ( -- word quot )
+    CREATE scan-word scan-word scan-word [ x-insn ] 3curry ;
+
+: X: (X) (( a s b -- )) define-declared ; parsing
+
+: (1) ( quot -- quot' ) [ 0 ] prepose ;
+
+: X1: (X) (1) (( a s -- )) define-declared ; parsing
+
+: xfx-insn ( d spr xo opcode -- )
+    [ { 1 11 21 } bitfield ] dip insn ;
+
+: CREATE-MF ( -- word ) scan "MF" prepend create-in ;
+
+: MFSPR:
+    CREATE-MF scan-word 5 shift [ 339 31 xfx-insn ] curry
+    (( d -- )) define-declared ; parsing
+
+: CREATE-MT ( -- word ) scan "MT" prepend create-in ;
+
+: MTSPR:
+    CREATE-MT scan-word 5 shift [ 467 31 xfx-insn ] curry
+    (( d -- )) define-declared ; parsing
+
+: xo-insn ( d a b oe rc xo opcode -- )
+    [ { 1 0 10 11 16 21 } bitfield ] dip insn ;
+
+: (XO) ( -- word quot )
+    CREATE scan-word scan-word scan-word scan-word
+    [ xo-insn ] 2curry 2curry ;
+
+: XO: (XO) (( a s b -- )) define-declared ; parsing
+
+: XO1: (XO) (1) (( a s -- )) define-declared ; parsing
+
+GENERIC# (B) 2 ( dest aa lk -- )
+M: integer (B) 18 i-insn ;
+M: word (B) 0 -rot (B) rc-relative-ppc-3 rel-word ;
+M: label (B) 0 -rot (B) rc-relative-ppc-3 label-fixup ;
+
+GENERIC: BC ( a b c -- )
+M: integer BC 0 0 16 b-insn ;
+M: word BC >r 0 BC r> rc-relative-ppc-2 rel-word ;
+M: label BC >r 0 BC r> rc-relative-ppc-2 label-fixup ;
+
+: CREATE-B ( -- word ) scan "B" prepend create-in ;
+
+: BC:
+    CREATE-B scan-word scan-word
+    [ rot BC ] 2curry (( c -- )) define-declared ; parsing
+
+: B:
+    CREATE-B scan-word scan-word scan-word scan-word scan-word
+    [ b-insn ] curry curry curry curry curry
+    (( bo -- )) define-declared ; parsing
diff --git a/basis/cpu/ppc/assembler/backend/tags.txt b/basis/cpu/ppc/assembler/backend/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/ppc/assembler/backend/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/assembler/summary.txt b/basis/cpu/ppc/assembler/summary.txt
similarity index 100%
rename from core/cpu/ppc/assembler/summary.txt
rename to basis/cpu/ppc/assembler/summary.txt
diff --git a/core/listener/authors.txt b/basis/cpu/ppc/authors.txt
similarity index 100%
rename from core/listener/authors.txt
rename to basis/cpu/ppc/authors.txt
diff --git a/basis/cpu/ppc/bootstrap.factor b/basis/cpu/ppc/bootstrap.factor
new file mode 100755
index 0000000000..a0a13c989e
--- /dev/null
+++ b/basis/cpu/ppc/bootstrap.factor
@@ -0,0 +1,308 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: bootstrap.image.private kernel kernel.private namespaces
+system cpu.ppc.assembler compiler.generator.fixup compiler.units
+compiler.constants math math.private layouts words words.private
+vocabs slots.private ;
+IN: bootstrap.ppc
+
+4 \ cell set
+big-endian on
+
+4 jit-code-format set
+
+: ds-reg 14 ;
+: rs-reg 15 ;
+
+: factor-area-size ( -- n ) 4 bootstrap-cells ;
+
+: stack-frame ( -- n )
+    factor-area-size c-area-size + 4 bootstrap-cells align ;
+
+: next-save ( -- n ) stack-frame bootstrap-cell - ;
+: xt-save ( -- n ) stack-frame 2 bootstrap-cells - ;
+
+[
+    0 6 LOAD32
+    6 dup 0 LWZ
+    11 6 profile-count-offset LWZ
+    11 11 1 tag-fixnum ADDI
+    11 6 profile-count-offset STW
+    11 6 word-code-offset LWZ
+    11 11 compiled-header-size ADDI
+    11 MTCTR
+    BCTR
+] rc-absolute-ppc-2/2 rt-literal 1 jit-profiling jit-define
+
+[
+    0 6 LOAD32
+    0 MFLR
+    1 1 stack-frame SUBI
+    6 1 xt-save STW
+    stack-frame 6 LI
+    6 1 next-save STW
+    0 1 lr-save stack-frame + STW
+] rc-absolute-ppc-2/2 rt-label 1 jit-prolog jit-define
+
+[
+    0 6 LOAD32
+    6 dup 0 LWZ
+    6 ds-reg 4 STWU
+] rc-absolute-ppc-2/2 rt-literal 1 jit-push-literal jit-define
+
+[
+    0 6 LOAD32
+    6 ds-reg 4 STWU
+] rc-absolute-ppc-2/2 rt-immediate 1 jit-push-immediate jit-define
+
+[
+    0 6 LOAD32
+    4 1 MR
+    6 MTCTR
+    BCTR
+] rc-absolute-ppc-2/2 rt-primitive 1 jit-primitive jit-define
+
+[ 0 BL ] rc-relative-ppc-3 rt-xt 0 jit-word-call jit-define
+
+[ 0 B ] rc-relative-ppc-3 rt-xt 0 jit-word-jump jit-define
+
+: jit-call-quot ( -- )
+    4 3 quot-xt-offset LWZ
+    4 MTCTR
+    BCTR ;
+
+[
+    0 3 LOAD32
+    6 ds-reg 0 LWZ
+    0 6 \ f tag-number CMPI
+    2 BNE
+    3 3 4 ADDI
+    3 3 0 LWZ
+    ds-reg dup 4 SUBI
+    jit-call-quot
+] rc-absolute-ppc-2/2 rt-literal 1 jit-if-jump jit-define
+
+[
+    0 3 LOAD32
+    3 3 0 LWZ
+    6 ds-reg 0 LWZ
+    6 6 1 SRAWI
+    3 3 6 ADD
+    3 3 array-start-offset LWZ
+    ds-reg dup 4 SUBI
+    jit-call-quot
+] rc-absolute-ppc-2/2 rt-literal 1 jit-dispatch jit-define
+
+[
+    0 1 lr-save stack-frame + LWZ
+    1 1 stack-frame ADDI
+    0 MTLR
+] f f f jit-epilog jit-define
+
+[ BLR ] f f f jit-return jit-define
+
+! Sub-primitives
+
+! Quotations and words
+[
+    3 ds-reg 0 LWZ
+    ds-reg dup 4 SUBI
+    jit-call-quot
+] f f f \ (call) define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    ds-reg dup 4 SUBI
+    4 3 word-xt-offset LWZ
+    4 MTCTR
+    BCTR
+] f f f \ (execute) define-sub-primitive
+
+! Objects
+[
+    3 ds-reg 0 LWZ
+    3 3 tag-mask get ANDI
+    3 3 tag-bits get SLWI
+    3 ds-reg 0 STW
+] f f f \ tag define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZU
+    3 3 1 SRAWI
+    4 4 0 0 31 tag-bits get - RLWINM
+    4 3 3 LWZX
+    3 ds-reg 0 STW
+] f f f \ slot define-sub-primitive
+
+! Shufflers
+[
+    ds-reg dup 4 SUBI
+] f f f \ drop define-sub-primitive
+
+[
+    ds-reg dup 8 SUBI
+] f f f \ 2drop define-sub-primitive
+
+[
+    ds-reg dup 12 SUBI
+] f f f \ 3drop define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    3 ds-reg 4 STWU
+] f f f \ dup define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    ds-reg dup 8 ADDI
+    3 ds-reg 0 STW
+    4 ds-reg -4 STW
+] f f f \ 2dup define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    5 ds-reg -8 LWZ
+    ds-reg dup 12 ADDI
+    3 ds-reg 0 STW
+    4 ds-reg -4 STW
+    5 ds-reg -8 STW
+] f f f \ 3dup define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    ds-reg dup 4 SUBI
+    3 ds-reg 0 STW
+] f f f \ nip define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    ds-reg dup 8 SUBI
+    3 ds-reg 0 STW
+] f f f \ 2nip define-sub-primitive
+
+[
+    3 ds-reg -4 LWZ
+    3 ds-reg 4 STWU
+] f f f \ over define-sub-primitive
+
+[
+    3 ds-reg -8 LWZ
+    3 ds-reg 4 STWU
+] f f f \ pick define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    4 ds-reg 0 STW
+    3 ds-reg 4 STWU
+] f f f \ dupd define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    3 ds-reg 4 STWU
+    4 ds-reg -4 STW
+    3 ds-reg -8 STW
+] f f f \ tuck define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    3 ds-reg -4 STW
+    4 ds-reg 0 STW
+] f f f \ swap define-sub-primitive
+
+[
+    3 ds-reg -4 LWZ
+    4 ds-reg -8 LWZ
+    3 ds-reg -8 STW
+    4 ds-reg -4 STW
+] f f f \ swapd define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    5 ds-reg -8 LWZ
+    4 ds-reg -8 STW
+    3 ds-reg -4 STW
+    5 ds-reg 0 STW
+] f f f \ rot define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZ
+    5 ds-reg -8 LWZ
+    3 ds-reg -8 STW
+    5 ds-reg -4 STW
+    4 ds-reg 0 STW
+] f f f \ -rot define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    ds-reg dup 4 SUBI
+    3 rs-reg 4 STWU
+] f f f \ >r define-sub-primitive
+
+[
+    3 rs-reg 0 LWZ
+    rs-reg dup 4 SUBI
+    3 ds-reg 4 STWU
+] f f f \ r> define-sub-primitive
+
+! Comparisons
+: jit-compare ( insn -- )
+    0 3 LOAD32
+    3 3 0 LWZ
+    4 ds-reg 0 LWZ
+    5 ds-reg -4 LWZU
+    5 0 4 CMP
+    2 swap execute ! magic number
+    \ f tag-number 3 LI
+    3 ds-reg 0 STW ;
+
+: define-jit-compare ( insn word -- )
+    [ [ jit-compare ] curry rc-absolute-ppc-2/2 rt-literal 1 ] dip
+    define-sub-primitive ;
+
+\ BEQ \ eq? define-jit-compare
+\ BGE \ fixnum>= define-jit-compare
+\ BLE \ fixnum<= define-jit-compare
+\ BGT \ fixnum> define-jit-compare
+\ BLT \ fixnum< define-jit-compare
+
+! Math
+: jit-math ( insn -- )
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZU
+    [ 5 3 4 ] dip execute
+    5 ds-reg 0 STW ;
+
+[ \ ADD jit-math ] f f f \ fixnum+fast define-sub-primitive
+
+[ \ SUBF jit-math ] f f f \ fixnum-fast define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    4 ds-reg -4 LWZU
+    4 4 tag-bits get SRAWI
+    5 3 4 MULLW
+    5 ds-reg 0 STW
+] f f f \ fixnum*fast define-sub-primitive
+
+[ \ AND jit-math ] f f f \ fixnum-bitand define-sub-primitive
+
+[ \ OR jit-math ] f f f \ fixnum-bitor define-sub-primitive
+
+[ \ XOR jit-math ] f f f \ fixnum-bitxor define-sub-primitive
+
+[
+    3 ds-reg 0 LWZ
+    3 3 NOT
+    3 3 tag-mask get XORI
+    3 ds-reg 0 STW
+] f f f \ fixnum-bitnot define-sub-primitive
+
+[ "bootstrap.ppc" forget-vocab ] with-compilation-unit
diff --git a/core/math/bitfields/authors.txt b/basis/cpu/ppc/intrinsics/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/math/bitfields/authors.txt
rename to basis/cpu/ppc/intrinsics/authors.txt
diff --git a/core/cpu/ppc/intrinsics/intrinsics.factor b/basis/cpu/ppc/intrinsics/intrinsics.factor
similarity index 91%
rename from core/cpu/ppc/intrinsics/intrinsics.factor
rename to basis/cpu/ppc/intrinsics/intrinsics.factor
index 1b28f7262e..634040b0d0 100755
--- a/core/cpu/ppc/intrinsics/intrinsics.factor
+++ b/basis/cpu/ppc/intrinsics/intrinsics.factor
@@ -1,27 +1,31 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.accessors alien.c-types arrays cpu.ppc.assembler
-cpu.ppc.architecture cpu.ppc.allot cpu.architecture kernel
-kernel.private math math.private namespaces sequences words
-generic quotations byte-arrays hashtables hashtables.private
-generator generator.registers generator.fixup sequences.private
-sbufs vectors system layouts math.floats.private
-classes classes.tuple classes.tuple.private sbufs.private
-vectors.private strings.private slots.private combinators
-bit-arrays float-arrays compiler.constants ;
+USING: accessors alien alien.accessors alien.c-types arrays
+cpu.ppc.assembler cpu.ppc.architecture cpu.ppc.allot
+cpu.architecture kernel kernel.private math math.private
+namespaces sequences words generic quotations byte-arrays
+hashtables hashtables.private
+sequences.private sbufs vectors system layouts
+math.floats.private classes slots.private
+combinators
+compiler.constants
+compiler.intrinsics
+compiler.generator
+compiler.generator.fixup
+compiler.generator.registers ;
 IN: cpu.ppc.intrinsics
 
-: %slot-literal-known-tag
+: %slot-literal-known-tag ( -- out value offset )
     "val" operand
     "obj" operand
     "n" get cells
     "obj" get operand-tag - ;
 
-: %slot-literal-any-tag
+: %slot-literal-any-tag ( -- out value offset )
     "obj" operand "scratch1" operand %untag
     "val" operand "scratch1" operand "n" get cells ;
 
-: %slot-any
+: %slot-any ( -- out value offset )
     "obj" operand "scratch1" operand %untag
     "offset" operand "n" operand 1 SRAWI
     "scratch1" operand "val" operand "offset" operand ;
@@ -188,7 +192,7 @@ IN: cpu.ppc.intrinsics
     }
 } define-intrinsics
 
-: generate-fixnum-mod
+: generate-fixnum-mod ( -- )
     #! PowerPC doesn't have a MOD instruction; so we compute
     #! x-(x/y)*y. Puts the result in "s" operand.
     "s" operand "r" operand "y" operand MULLW
@@ -259,7 +263,7 @@ IN: cpu.ppc.intrinsics
 \ fixnum+ \ ADD \ ADDO. overflow-template
 \ fixnum- \ SUBF \ SUBFO. overflow-template
 
-: generate-fixnum/i
+: generate-fixnum/i ( -- )
     #! This VOP is funny. If there is an overflow, it falls
     #! through to the end, and the result is in "x" operand.
     #! Otherwise it jumps to the "no-overflow" label and the
@@ -437,49 +441,41 @@ IN: cpu.ppc.intrinsics
     { +clobber+ { "n" } }
 } define-intrinsic
 
-\ <tuple> [
-    tuple "layout" get layout-size 2 + cells %allot
+\ (tuple) [
+    tuple "layout" get size>> 2 + cells %allot
     ! Store layout
     "layout" get 12 load-indirect
     12 11 cell STW
-    ! Zero out the rest of the tuple
-    f v>operand 12 LI
-    "layout" get layout-size [ 12 11 rot 2 + cells STW ] each
     ! Store tagged ptr in reg
     "tuple" get tuple %store-tagged
 ] H{
-    { +input+ { { [ tuple-layout? ] "layout" } } }
+    { +input+ { { [ ] "layout" } } }
     { +scratch+ { { f "tuple" } } }
     { +output+ { "tuple" } }
 } define-intrinsic
 
-\ <array> [
+\ (array) [
     array "n" get 2 + cells %allot
     ! Store length
     "n" operand 12 LI
     12 11 cell STW
-    ! Store initial element
-    "n" get [ "initial" operand 11 rot 2 + cells STW ] each
     ! Store tagged ptr in reg
     "array" get object %store-tagged
 ] H{
-    { +input+ { { [ inline-array? ] "n" } { f "initial" } } }
+    { +input+ { { [ ] "n" } } }
     { +scratch+ { { f "array" } } }
     { +output+ { "array" } }
 } define-intrinsic
 
-\ <byte-array> [
+\ (byte-array) [
     byte-array "n" get 2 cells + %allot
     ! Store length
     "n" operand 12 LI
     12 11 cell STW
-    ! Store initial element
-    0 12 LI
-    "n" get cell align cell /i [ 12 11 rot 2 + cells STW ] each
     ! Store tagged ptr in reg
     "array" get object %store-tagged
 ] H{
-    { +input+ { { [ inline-array? ] "n" } } }
+    { +input+ { { [ ] "n" } } }
     { +scratch+ { { f "array" } } }
     { +output+ { "array" } }
 } define-intrinsic
@@ -522,8 +518,8 @@ IN: cpu.ppc.intrinsics
 ! Alien intrinsics
 : %alien-accessor ( quot -- )
     "offset" operand dup %untag-fixnum
-    "offset" operand dup "alien" operand ADD
-    "value" operand "offset" operand 0 roll call ; inline
+    "scratch" operand "offset" operand "alien" operand ADD
+    "value" operand "scratch" operand 0 roll call ; inline
 
 : alien-integer-get-template
     H{
@@ -531,7 +527,7 @@ IN: cpu.ppc.intrinsics
             { unboxed-c-ptr "alien" c-ptr }
             { f "offset" fixnum }
         } }
-        { +scratch+ { { f "value" } } }
+        { +scratch+ { { f "value" } { f "scratch" } } }
         { +output+ { "value" } }
         { +clobber+ { "offset" } }
     } ;
@@ -547,6 +543,7 @@ IN: cpu.ppc.intrinsics
             { unboxed-c-ptr "alien" c-ptr }
             { f "offset" fixnum }
         } }
+        { +scratch+ { { f "scratch" } } }
         { +clobber+ { "value" "offset" } }
     } ;
 
@@ -587,7 +584,7 @@ define-alien-integer-intrinsics
         { unboxed-c-ptr "alien" c-ptr }
         { f "offset" fixnum }
     } }
-    { +scratch+ { { unboxed-alien "value" } } }
+    { +scratch+ { { unboxed-alien "value" } { f "scratch" } } }
     { +output+ { "value" } }
     { +clobber+ { "offset" } }
 } define-intrinsic
@@ -600,6 +597,7 @@ define-alien-integer-intrinsics
         { unboxed-c-ptr "alien" c-ptr }
         { f "offset" fixnum }
     } }
+    { +scratch+ { { f "scratch" } } }
     { +clobber+ { "offset" } }
 } define-intrinsic
 
@@ -609,7 +607,7 @@ define-alien-integer-intrinsics
             { unboxed-c-ptr "alien" c-ptr }
             { f "offset" fixnum }
         } }
-        { +scratch+ { { float "value" } } }
+        { +scratch+ { { float "value" } { f "scratch" } } }
         { +output+ { "value" } }
         { +clobber+ { "offset" } }
     } ;
@@ -621,6 +619,7 @@ define-alien-integer-intrinsics
             { unboxed-c-ptr "alien" c-ptr }
             { f "offset" fixnum }
         } }
+        { +scratch+ { { f "scratch" } } }
         { +clobber+ { "offset" } }
     } ;
 
diff --git a/basis/cpu/ppc/intrinsics/tags.txt b/basis/cpu/ppc/intrinsics/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/ppc/intrinsics/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/ppc/linux/bootstrap.factor b/basis/cpu/ppc/linux/bootstrap.factor
similarity index 52%
rename from core/cpu/ppc/linux/bootstrap.factor
rename to basis/cpu/ppc/linux/bootstrap.factor
index 3900ca7f88..fd9bab4835 100755
--- a/core/cpu/ppc/linux/bootstrap.factor
+++ b/basis/cpu/ppc/linux/bootstrap.factor
@@ -3,8 +3,8 @@
 USING: parser layouts system kernel ;
 IN: bootstrap.ppc
 
-: c-area-size 10 bootstrap-cells ;
-: lr-save bootstrap-cell ;
+: c-area-size ( -- n ) 10 bootstrap-cells ;
+: lr-save ( -- n ) bootstrap-cell ;
 
-<< "resource:core/cpu/ppc/bootstrap.factor" parse-file parsed >>
+<< "resource:basis/cpu/ppc/bootstrap.factor" parse-file parsed >>
 call
diff --git a/core/cpu/ppc/macosx/bootstrap.factor b/basis/cpu/ppc/macosx/bootstrap.factor
similarity index 51%
rename from core/cpu/ppc/macosx/bootstrap.factor
rename to basis/cpu/ppc/macosx/bootstrap.factor
index db5e3a343f..f2ddc42688 100755
--- a/core/cpu/ppc/macosx/bootstrap.factor
+++ b/basis/cpu/ppc/macosx/bootstrap.factor
@@ -3,8 +3,8 @@
 USING: parser layouts system kernel ;
 IN: bootstrap.ppc
 
-: c-area-size 14 bootstrap-cells ;
-: lr-save 2 bootstrap-cells ;
+: c-area-size ( -- n ) 14 bootstrap-cells ;
+: lr-save ( -- n ) 2 bootstrap-cells ;
 
-<< "resource:core/cpu/ppc/bootstrap.factor" parse-file parsed >>
+<< "resource:basis/cpu/ppc/bootstrap.factor" parse-file parsed >>
 call
diff --git a/basis/cpu/ppc/ppc.factor b/basis/cpu/ppc/ppc.factor
new file mode 100755
index 0000000000..1577945118
--- /dev/null
+++ b/basis/cpu/ppc/ppc.factor
@@ -0,0 +1,15 @@
+USING: accessors cpu.ppc.architecture cpu.ppc.intrinsics
+cpu.architecture namespaces alien.c-types kernel system
+combinators ;
+
+{
+    { [ os macosx? ] [
+        4 "longlong" c-type (>>align)
+        4 "ulonglong" c-type (>>align)
+        4 "double" c-type (>>align)
+    ] }
+    { [ os linux? ] [
+        t "longlong" c-type (>>stack-align?)
+        t "ulonglong" c-type (>>stack-align?)
+    ] }
+} cond
diff --git a/core/cpu/ppc/summary.txt b/basis/cpu/ppc/summary.txt
similarity index 100%
rename from core/cpu/ppc/summary.txt
rename to basis/cpu/ppc/summary.txt
diff --git a/basis/cpu/ppc/tags.txt b/basis/cpu/ppc/tags.txt
new file mode 100644
index 0000000000..8e66660f70
--- /dev/null
+++ b/basis/cpu/ppc/tags.txt
@@ -0,0 +1,2 @@
+unportable
+compiler
diff --git a/core/cpu/summary.txt b/basis/cpu/summary.txt
similarity index 100%
rename from core/cpu/summary.txt
rename to basis/cpu/summary.txt
diff --git a/core/cpu/ppc/tags.txt b/basis/cpu/tags.txt
similarity index 100%
rename from core/cpu/ppc/tags.txt
rename to basis/cpu/tags.txt
diff --git a/core/cpu/x86/32/32.factor b/basis/cpu/x86/32/32.factor
similarity index 87%
rename from core/cpu/x86/32/32.factor
rename to basis/cpu/x86/32/32.factor
index 9ef8177cf3..6f255893db 100755
--- a/core/cpu/x86/32/32.factor
+++ b/basis/cpu/x86/32/32.factor
@@ -3,9 +3,11 @@
 USING: alien.c-types arrays cpu.x86.assembler
 cpu.x86.architecture cpu.x86.intrinsics cpu.x86.allot
 cpu.architecture kernel kernel.private math namespaces sequences
-generator.registers generator.fixup generator system layouts
-alien.compiler combinators command-line
-compiler compiler.units io vocabs.loader accessors ;
+stack-checker.known-words
+compiler.generator.registers compiler.generator.fixup
+compiler.generator system layouts combinators
+command-line compiler compiler.units io vocabs.loader accessors
+init ;
 IN: cpu.x86.32
 
 ! We implement the FFI for Linux, OS X and Windows all at once.
@@ -31,21 +33,23 @@ M: int-regs return-reg drop EAX ;
 M: int-regs param-regs drop { } ;
 M: int-regs vregs drop { EAX ECX EDX EBP } ;
 M: int-regs push-return-reg return-reg PUSH ;
-: load/store-int-return return-reg stack-reg rot [+] ;
+: load/store-int-return ( n reg-class -- src dst )
+    return-reg stack-reg rot [+] ;
 M: int-regs load-return-reg load/store-int-return MOV ;
 M: int-regs store-return-reg load/store-int-return swap MOV ;
 
 M: float-regs param-regs drop { } ;
 M: float-regs vregs drop { XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 } ;
 
-: FSTP 4 = [ FSTPS ] [ FSTPL ] if ;
+: FSTP ( operand size -- ) 4 = [ FSTPS ] [ FSTPL ] if ;
 
 M: float-regs push-return-reg
     stack-reg swap reg-size [ SUB  stack-reg [] ] keep FSTP ;
 
-: FLD 4 = [ FLDS ] [ FLDL ] if ;
+: FLD ( operand size -- ) 4 = [ FLDS ] [ FLDL ] if ;
 
-: load/store-float-return reg-size >r stack@ r> ;
+: load/store-float-return ( n reg-class -- op size )
+    [ stack@ ] [ reg-size ] bi* ;
 M: float-regs load-return-reg load/store-float-return FLD ;
 M: float-regs store-return-reg load/store-float-return FSTP ;
 
@@ -151,7 +155,7 @@ M: x86.32 %box ( n reg-class func -- )
         >r (%box) r> f %alien-invoke
     ] with-aligned-stack ;
     
-: (%box-long-long)
+: (%box-long-long) ( n -- )
     #! If n is f, push the return registers onto the stack; we
     #! are boxing a return value of a C function. If n is an
     #! integer, push [ESP+n]:[ESP+n+4] on the stack; we are
@@ -166,7 +170,7 @@ M: x86.32 %box ( n reg-class func -- )
 
 M: x86.32 %box-long-long ( n func -- )
     8 [
-        >r (%box-long-long) r> f %alien-invoke
+        [ (%box-long-long) ] [ f %alien-invoke ] bi*
     ] with-aligned-stack ;
 
 M: x86.32 %box-large-struct ( n size -- )
@@ -255,14 +259,16 @@ M: x86.32 %cleanup ( alien-node -- )
 M: x86.32 %unwind ( n -- ) %epilogue-later RET ;
 
 os windows? [
-    cell "longlong" c-type set-c-type-align
-    cell "ulonglong" c-type set-c-type-align
-    4 "double" c-type set-c-type-align
+    cell "longlong" c-type (>>align)
+    cell "ulonglong" c-type (>>align)
+    4 "double" c-type (>>align)
 ] unless
 
-: sse2? "Intrinsic" throw ;
+: (sse2?) ( -- ? ) "Intrinsic" throw ;
 
-\ sse2? [
+<<
+
+\ (sse2?) [
     { EAX EBX ECX EDX } [ PUSH ] each
     EAX 1 MOV
     CPUID
@@ -272,6 +278,12 @@ os windows? [
     JE
 ] { } define-if-intrinsic
 
+\ (sse2?) { } { object } define-primitive
+
+>>
+
+: sse2? ( -- ? ) (sse2?) ;
+
 "-no-sse2" cli-args member? [
     "Checking if your CPU supports SSE2..." print flush
     [ optimized-recompile-hook ] recompile-hook [
@@ -280,6 +292,14 @@ os windows? [
     [
         " - yes" print
         "cpu.x86.sse2" require
+        [
+            sse2? [
+                "This image was built to use SSE2, which your CPU does not support." print
+                "You will need to bootstrap Factor again." print
+                flush
+                1 exit
+            ] unless
+        ] "cpu.x86" add-init-hook
     ] [
         " - no" print
     ] if
diff --git a/core/math/intervals/authors.txt b/basis/cpu/x86/32/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/math/intervals/authors.txt
rename to basis/cpu/x86/32/authors.txt
diff --git a/basis/cpu/x86/32/bootstrap.factor b/basis/cpu/x86/32/bootstrap.factor
new file mode 100755
index 0000000000..81779ac9f4
--- /dev/null
+++ b/basis/cpu/x86/32/bootstrap.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: bootstrap.image.private kernel namespaces system
+cpu.x86.assembler layouts vocabs parser ;
+IN: bootstrap.x86
+
+4 \ cell set
+
+: arg0 ( -- reg ) EAX ;
+: arg1 ( -- reg ) EDX ;
+: temp-reg ( -- reg ) EBX ;
+: stack-reg ( -- reg ) ESP ;
+: ds-reg ( -- reg ) ESI ;
+: rs-reg ( -- reg ) EDI ;
+: fixnum>slot@ ( -- ) arg0 1 SAR ;
+: rex-length ( -- n ) 0 ;
+
+<< "resource:basis/cpu/x86/bootstrap.factor" parse-file parsed >>
+call
diff --git a/basis/cpu/x86/32/tags.txt b/basis/cpu/x86/32/tags.txt
new file mode 100644
index 0000000000..8e66660f70
--- /dev/null
+++ b/basis/cpu/x86/32/tags.txt
@@ -0,0 +1,2 @@
+unportable
+compiler
diff --git a/core/cpu/x86/64/64.factor b/basis/cpu/x86/64/64.factor
similarity index 94%
rename from core/cpu/x86/64/64.factor
rename to basis/cpu/x86/64/64.factor
index ebaa6056ff..6e864ab968 100755
--- a/core/cpu/x86/64/64.factor
+++ b/basis/cpu/x86/64/64.factor
@@ -1,11 +1,11 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien.c-types arrays cpu.x86.assembler
+USING: accessors alien.c-types arrays cpu.x86.assembler
 cpu.x86.architecture cpu.x86.intrinsics cpu.x86.sse2
 cpu.x86.allot cpu.architecture kernel kernel.private math
-namespaces sequences generator.registers generator.fixup system
-layouts alien alien.accessors alien.compiler alien.structs slots
-splitting assocs ;
+namespaces sequences compiler.generator compiler.generator.registers
+compiler.generator.fixup system layouts alien alien.accessors
+alien.structs slots splitting assocs ;
 IN: cpu.x86.64
 
 M: x86.64 ds-reg R14 ;
@@ -174,11 +174,11 @@ USE: cpu.x86.intrinsics
 
 ! The ABI for passing structs by value is pretty messed up
 << "void*" c-type clone "__stack_value" define-primitive-type
-stack-params "__stack_value" c-type set-c-type-reg-class >>
+stack-params "__stack_value" c-type (>>reg-class) >>
 
 : struct-types&offset ( struct-type -- pairs )
-    struct-type-fields [
-        dup slot-spec-type swap slot-spec-offset 2array
+    fields>> [
+        [ type>> ] [ offset>> ] bi 2array
     ] map ;
 
 : split-struct ( pairs -- seq )
diff --git a/core/mirrors/authors.txt b/basis/cpu/x86/64/authors.txt
similarity index 100%
rename from core/mirrors/authors.txt
rename to basis/cpu/x86/64/authors.txt
diff --git a/basis/cpu/x86/64/bootstrap.factor b/basis/cpu/x86/64/bootstrap.factor
new file mode 100755
index 0000000000..0092843bca
--- /dev/null
+++ b/basis/cpu/x86/64/bootstrap.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: bootstrap.image.private kernel namespaces system
+cpu.x86.assembler layouts vocabs parser ;
+IN: bootstrap.x86
+
+8 \ cell set
+
+: arg0 ( -- reg ) RDI ;
+: arg1 ( -- reg ) RSI ;
+: temp-reg ( -- reg ) RBX ;
+: stack-reg ( -- reg ) RSP ;
+: ds-reg ( -- reg ) R14 ;
+: rs-reg ( -- reg ) R15 ;
+: fixnum>slot@ ( -- ) ;
+: rex-length ( -- n ) 1 ;
+
+<< "resource:basis/cpu/x86/bootstrap.factor" parse-file parsed >>
+call
diff --git a/core/cpu/x86/64/summary.txt b/basis/cpu/x86/64/summary.txt
similarity index 100%
rename from core/cpu/x86/64/summary.txt
rename to basis/cpu/x86/64/summary.txt
diff --git a/basis/cpu/x86/64/tags.txt b/basis/cpu/x86/64/tags.txt
new file mode 100644
index 0000000000..8e66660f70
--- /dev/null
+++ b/basis/cpu/x86/64/tags.txt
@@ -0,0 +1,2 @@
+unportable
+compiler
diff --git a/core/cpu/x86/allot/allot.factor b/basis/cpu/x86/allot/allot.factor
similarity index 93%
rename from core/cpu/x86/allot/allot.factor
rename to basis/cpu/x86/allot/allot.factor
index 63870f94cd..611531785e 100755
--- a/core/cpu/x86/allot/allot.factor
+++ b/basis/cpu/x86/allot/allot.factor
@@ -1,12 +1,12 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel cpu.architecture cpu.x86.assembler
-cpu.x86.architecture kernel.private namespaces math
-sequences generic arrays generator generator.fixup
-generator.registers system layouts alien ;
+cpu.x86.architecture kernel.private namespaces math sequences
+generic arrays compiler.generator compiler.generator.fixup
+compiler.generator.registers system layouts alien ;
 IN: cpu.x86.allot
 
-: allot-reg
+: allot-reg ( -- reg )
     #! We temporarily use the datastack register, since it won't
     #! be accessed inside the quotation given to %allot in any
     #! case.
diff --git a/core/none/authors.txt b/basis/cpu/x86/allot/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/none/authors.txt
rename to basis/cpu/x86/allot/authors.txt
diff --git a/basis/cpu/x86/allot/tags.txt b/basis/cpu/x86/allot/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/x86/allot/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/x86/architecture/architecture.factor b/basis/cpu/x86/architecture/architecture.factor
similarity index 85%
rename from core/cpu/x86/architecture/architecture.factor
rename to basis/cpu/x86/architecture/architecture.factor
index 88881b19a8..69bc685364 100755
--- a/core/cpu/x86/architecture/architecture.factor
+++ b/basis/cpu/x86/architecture/architecture.factor
@@ -1,23 +1,23 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types alien.compiler arrays
-cpu.x86.assembler cpu.x86.assembler.private cpu.architecture
-kernel kernel.private math memory namespaces sequences words
-generator generator.registers generator.fixup system layouts
-combinators compiler.constants math.order ;
+USING: accessors alien alien.c-types arrays cpu.x86.assembler
+cpu.x86.assembler.private cpu.architecture kernel kernel.private
+math memory namespaces sequences words compiler.generator
+compiler.generator.registers compiler.generator.fixup system
+layouts combinators compiler.constants math.order ;
 IN: cpu.x86.architecture
 
-HOOK: ds-reg cpu
-HOOK: rs-reg cpu
-HOOK: stack-reg cpu
-HOOK: stack-save-reg cpu
+HOOK: ds-reg cpu ( -- reg )
+HOOK: rs-reg cpu ( -- reg )
+HOOK: stack-reg cpu ( -- reg )
+HOOK: stack-save-reg cpu ( -- reg )
 
-: stack@ stack-reg swap [+] ;
+: stack@ ( n -- op ) stack-reg swap [+] ;
 
 : reg-stack ( n reg -- op ) swap cells neg [+] ;
 
-M: ds-loc v>operand ds-loc-n ds-reg reg-stack ;
-M: rs-loc v>operand rs-loc-n rs-reg reg-stack ;
+M: ds-loc v>operand n>> ds-reg reg-stack ;
+M: rs-loc v>operand n>> rs-reg reg-stack ;
 
 M: int-regs %save-param-reg drop >r stack@ r> MOV ;
 M: int-regs %load-param-reg drop swap stack@ MOV ;
@@ -36,14 +36,14 @@ GENERIC: load-return-reg ( stack@ reg-class -- )
 GENERIC: store-return-reg ( stack@ reg-class -- )
 
 ! Only used by inline allocation
-HOOK: temp-reg-1 cpu
-HOOK: temp-reg-2 cpu
+HOOK: temp-reg-1 cpu ( -- reg )
+HOOK: temp-reg-2 cpu ( -- reg )
 
 HOOK: address-operand cpu ( address -- operand )
 
-HOOK: fixnum>slot@ cpu
+HOOK: fixnum>slot@ cpu ( op -- )
 
-HOOK: prepare-division cpu
+HOOK: prepare-division cpu ( -- )
 
 M: immediate load-literal v>operand swap v>operand MOV ;
 
@@ -53,7 +53,7 @@ M: x86 stack-frame ( n -- i )
 M: x86 %save-word-xt ( -- )
     temp-reg v>operand 0 MOV rc-absolute-cell rel-this ;
 
-: factor-area-size 4 cells ;
+: factor-area-size ( -- n ) 4 cells ;
 
 M: x86 %prologue ( n -- )
     dup cell + PUSH
@@ -120,7 +120,7 @@ M: x86 %peek [ v>operand ] bi@ MOV ;
 
 M: x86 %replace swap %peek ;
 
-: (%inc) swap cells dup 0 > [ ADD ] [ neg SUB ] if ;
+: (%inc) ( n reg -- ) swap cells dup 0 > [ ADD ] [ neg SUB ] if ;
 
 M: x86 %inc-d ( n -- ) ds-reg (%inc) ;
 
@@ -139,7 +139,7 @@ M: x86 small-enough? ( n -- ? )
 
 : %tag-fixnum ( reg -- ) tag-bits get SHL ;
 
-: temp@ stack-reg \ stack-frame get rot - [+] ;
+: temp@ ( n -- op ) stack-reg \ stack-frame get rot - [+] ;
 
 : struct-return@ ( size n -- n )
     [
diff --git a/core/optimizer/authors.txt b/basis/cpu/x86/architecture/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/optimizer/authors.txt
rename to basis/cpu/x86/architecture/authors.txt
diff --git a/basis/cpu/x86/architecture/tags.txt b/basis/cpu/x86/architecture/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/x86/architecture/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/x86/assembler/assembler-tests.factor b/basis/cpu/x86/assembler/assembler-tests.factor
similarity index 100%
rename from core/cpu/x86/assembler/assembler-tests.factor
rename to basis/cpu/x86/assembler/assembler-tests.factor
diff --git a/core/cpu/x86/assembler/assembler.factor b/basis/cpu/x86/assembler/assembler.factor
similarity index 81%
rename from core/cpu/x86/assembler/assembler.factor
rename to basis/cpu/x86/assembler/assembler.factor
index bc6a12d167..d9c25d8492 100755
--- a/core/cpu/x86/assembler/assembler.factor
+++ b/basis/cpu/x86/assembler/assembler.factor
@@ -1,8 +1,9 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generator.fixup io.binary kernel
-combinators kernel.private math namespaces parser sequences
-words system layouts math.order accessors ;
+USING: arrays compiler.generator.fixup io.binary kernel
+combinators kernel.private math namespaces sequences
+words system layouts math.order accessors
+cpu.x86.assembler.syntax ;
 IN: cpu.x86.assembler
 
 ! A postfix assembler for x86 and AMD64.
@@ -12,21 +13,6 @@ IN: cpu.x86.assembler
 ! Beware!
 
 ! Register operands -- eg, ECX
-<<
-
-: define-register ( name num size -- )
-    >r >r "cpu.x86.assembler" create dup define-symbol r> r>
-    >r dupd "register" set-word-prop r>
-    "register-size" set-word-prop ;
-
-: define-registers ( names size -- )
-    >r dup length r> [ define-register ] curry 2each ;
-
-: REGISTERS:
-    scan-word ";" parse-tokens swap define-registers ; parsing
-
->>
-
 REGISTERS: 8 AL CL DL BL ;
 
 REGISTERS: 16 AX CX DX BX SP BP SI DI ;
@@ -76,31 +62,31 @@ TUPLE: indirect base index scale displacement ;
 
 M: indirect extended? base>> extended? ;
 
-: canonicalize-EBP
+: canonicalize-EBP ( indirect -- indirect )
     #! { EBP } ==> { EBP 0 }
     dup base>> { EBP RBP R13 } member? [
         dup displacement>> [ 0 >>displacement ] unless
-    ] when drop ;
+    ] when ;
 
-: canonicalize-ESP
+: canonicalize-ESP ( indirect -- indirect )
     #! { ESP } ==> { ESP ESP }
-    dup base>> { ESP RSP R12 } member? [ ESP >>index ] when drop ;
+    dup base>> { ESP RSP R12 } member? [ ESP >>index ] when ;
 
-: canonicalize ( indirect -- )
+: canonicalize ( indirect -- indirect )
     #! Modify the indirect to work around certain addressing mode
     #! quirks.
-    [ canonicalize-EBP ] [ canonicalize-ESP ] bi ;
+    canonicalize-EBP canonicalize-ESP ;
 
 : <indirect> ( base index scale displacement -- indirect )
-    indirect boa dup canonicalize ;
+    indirect boa canonicalize ;
 
-: reg-code "register" word-prop 7 bitand ;
+: reg-code ( reg -- n ) "register" word-prop 7 bitand ;
 
-: indirect-base* base>> EBP or reg-code ;
+: indirect-base* ( op -- n ) base>> EBP or reg-code ;
 
-: indirect-index* index>> ESP or reg-code ;
+: indirect-index* ( op -- n ) index>> ESP or reg-code ;
 
-: indirect-scale* scale>> 0 or ;
+: indirect-scale* ( op -- n ) scale>> 0 or ;
 
 GENERIC: sib-present? ( op -- ? )
 
@@ -145,10 +131,10 @@ GENERIC# n, 1 ( value n -- )
 
 M: integer n, >le % ;
 M: byte n, >r value>> r> n, ;
-: 1, 1 n, ; inline
-: 4, 4 n, ; inline
-: 2, 2 n, ; inline
-: cell, bootstrap-cell n, ; inline
+: 1, ( n -- ) 1 n, ; inline
+: 4, ( n -- ) 4 n, ; inline
+: 2, ( n -- ) 2 n, ; inline
+: cell, ( n -- ) bootstrap-cell n, ; inline
 
 : mod-r/m, ( reg# indirect -- )
     [ 3 shift ] [ [ modifier 6 shift ] [ r/m ] bi ] bi* bitor bitor , ;
@@ -196,10 +182,10 @@ M: object operand-64? drop f ;
         [ nip operand-64? ]
     } cond and ;
 
-: rex.r
+: rex.r ( m op -- n )
     extended? [ BIN: 00000100 bitor ] when ;
 
-: rex.b
+: rex.b ( m op -- n )
     [ extended? [ BIN: 00000001 bitor ] when ] keep
     dup indirect? [
         index>> extended? [ BIN: 00000010 bitor ] when
@@ -225,7 +211,7 @@ M: object operand-64? drop f ;
     #! the opcode.
     >r dupd prefix-1 reg-code r> + , ;
 
-: opcode, dup array? [ % ] [ , ] if ;
+: opcode, ( opcode -- ) dup array? [ % ] [ , ] if ;
 
 : extended-opcode ( opcode -- opcode' ) OCT: 17 swap 2array ;
 
@@ -240,7 +226,7 @@ M: object operand-64? drop f ;
     #! 'reg' field of the mod-r/m byte.
     first3 >r >r over r> prefix-1 r> opcode, swap addressing ;
 
-: immediate-operand-size-bit
+: immediate-operand-size-bit ( imm dst reg,rex.w,opcode -- imm dst reg,rex.w,opcode )
     pick integer? [ first3 BIN: 1 opcode-or 3array ] when ;
 
 : immediate-1 ( imm dst reg,rex.w,opcode -- )
@@ -249,7 +235,7 @@ M: object operand-64? drop f ;
 : immediate-4 ( imm dst reg,rex.w,opcode -- )
     immediate-operand-size-bit 1-operand 4, ;
 
-: immediate-fits-in-size-bit
+: immediate-fits-in-size-bit ( imm dst reg,rex.w,opcode -- imm dst reg,rex.w,opcode )
     pick integer? [ first3 BIN: 10 opcode-or 3array ] when ;
 
 : immediate-1/4 ( imm dst reg,rex.w,opcode -- )
@@ -320,38 +306,38 @@ M: operand MOV HEX: 88 2-operand ;
 
 ! Control flow
 GENERIC: JMP ( op -- )
-: (JMP) HEX: e9 , 0 4, rc-relative ;
+: (JMP) ( -- rel-class ) HEX: e9 , 0 4, rc-relative ;
 M: callable JMP (JMP) rel-word ;
 M: label JMP (JMP) label-fixup ;
 M: operand JMP { BIN: 100 t HEX: ff } 1-operand ;
 
 GENERIC: CALL ( op -- )
-: (CALL) HEX: e8 , 0 4, rc-relative ;
+: (CALL) ( -- rel-class ) HEX: e8 , 0 4, rc-relative ;
 M: callable CALL (CALL) rel-word ;
 M: label CALL (CALL) label-fixup ;
 M: operand CALL { BIN: 010 t HEX: ff } 1-operand ;
 
 GENERIC# JUMPcc 1 ( addr opcode -- )
-: (JUMPcc) extended-opcode, 0 4, rc-relative ;
+: (JUMPcc) ( n -- rel-class ) extended-opcode, 0 4, rc-relative ;
 M: callable JUMPcc (JUMPcc) rel-word ;
 M: label JUMPcc (JUMPcc) label-fixup ;
 
-: JO  HEX: 80 JUMPcc ;
-: JNO HEX: 81 JUMPcc ;
-: JB  HEX: 82 JUMPcc ;
-: JAE HEX: 83 JUMPcc ;
-: JE  HEX: 84 JUMPcc ; ! aka JZ
-: JNE HEX: 85 JUMPcc ;
-: JBE HEX: 86 JUMPcc ;
-: JA  HEX: 87 JUMPcc ;
-: JS  HEX: 88 JUMPcc ;
-: JNS HEX: 89 JUMPcc ;
-: JP  HEX: 8a JUMPcc ;
-: JNP HEX: 8b JUMPcc ;
-: JL  HEX: 8c JUMPcc ;
-: JGE HEX: 8d JUMPcc ;
-: JLE HEX: 8e JUMPcc ;
-: JG  HEX: 8f JUMPcc ;
+: JO  ( dst -- ) HEX: 80 JUMPcc ;
+: JNO ( dst -- ) HEX: 81 JUMPcc ;
+: JB  ( dst -- ) HEX: 82 JUMPcc ;
+: JAE ( dst -- ) HEX: 83 JUMPcc ;
+: JE  ( dst -- ) HEX: 84 JUMPcc ; ! aka JZ
+: JNE ( dst -- ) HEX: 85 JUMPcc ;
+: JBE ( dst -- ) HEX: 86 JUMPcc ;
+: JA  ( dst -- ) HEX: 87 JUMPcc ;
+: JS  ( dst -- ) HEX: 88 JUMPcc ;
+: JNS ( dst -- ) HEX: 89 JUMPcc ;
+: JP  ( dst -- ) HEX: 8a JUMPcc ;
+: JNP ( dst -- ) HEX: 8b JUMPcc ;
+: JL  ( dst -- ) HEX: 8c JUMPcc ;
+: JGE ( dst -- ) HEX: 8d JUMPcc ;
+: JLE ( dst -- ) HEX: 8e JUMPcc ;
+: JG  ( dst -- ) HEX: 8f JUMPcc ;
 
 : LEAVE ( -- ) HEX: c9 , ;
 
@@ -399,8 +385,8 @@ M: operand CMP OCT: 070 2-operand ;
 : DIV  ( dst -- ) { BIN: 110 t HEX: f7 } 1-operand ;
 : IDIV ( src -- ) { BIN: 111 t HEX: f7 } 1-operand ;
 
-: CDQ HEX: 99 , ;
-: CQO HEX: 48 , CDQ ;
+: CDQ ( -- ) HEX: 99 , ;
+: CQO ( -- ) HEX: 48 , CDQ ;
 
 : ROL ( dst n -- ) swap { BIN: 000 t HEX: c0 } immediate-1 ;
 : ROR ( dst n -- ) swap { BIN: 001 t HEX: c0 } immediate-1 ;
@@ -423,26 +409,26 @@ M: operand IMUL2 OCT: 257 extended-opcode (2-operand) ;
 ! Conditional move
 : MOVcc ( dst src cc -- ) extended-opcode swapd (2-operand) ;
 
-: CMOVO  HEX: 40 MOVcc ;
-: CMOVNO HEX: 41 MOVcc ;
-: CMOVB  HEX: 42 MOVcc ;
-: CMOVAE HEX: 43 MOVcc ;
-: CMOVE  HEX: 44 MOVcc ; ! aka CMOVZ
-: CMOVNE HEX: 45 MOVcc ;
-: CMOVBE HEX: 46 MOVcc ;
-: CMOVA  HEX: 47 MOVcc ;
-: CMOVS  HEX: 48 MOVcc ;
-: CMOVNS HEX: 49 MOVcc ;
-: CMOVP  HEX: 4a MOVcc ;
-: CMOVNP HEX: 4b MOVcc ;
-: CMOVL  HEX: 4c MOVcc ;
-: CMOVGE HEX: 4d MOVcc ;
-: CMOVLE HEX: 4e MOVcc ;
-: CMOVG  HEX: 4f MOVcc ;
+: CMOVO  ( dst src -- ) HEX: 40 MOVcc ;
+: CMOVNO ( dst src -- ) HEX: 41 MOVcc ;
+: CMOVB  ( dst src -- ) HEX: 42 MOVcc ;
+: CMOVAE ( dst src -- ) HEX: 43 MOVcc ;
+: CMOVE  ( dst src -- ) HEX: 44 MOVcc ; ! aka CMOVZ
+: CMOVNE ( dst src -- ) HEX: 45 MOVcc ;
+: CMOVBE ( dst src -- ) HEX: 46 MOVcc ;
+: CMOVA  ( dst src -- ) HEX: 47 MOVcc ;
+: CMOVS  ( dst src -- ) HEX: 48 MOVcc ;
+: CMOVNS ( dst src -- ) HEX: 49 MOVcc ;
+: CMOVP  ( dst src -- ) HEX: 4a MOVcc ;
+: CMOVNP ( dst src -- ) HEX: 4b MOVcc ;
+: CMOVL  ( dst src -- ) HEX: 4c MOVcc ;
+: CMOVGE ( dst src -- ) HEX: 4d MOVcc ;
+: CMOVLE ( dst src -- ) HEX: 4e MOVcc ;
+: CMOVG  ( dst src -- ) HEX: 4f MOVcc ;
 
 ! CPU Identification
 
-: CPUID HEX: a2 extended-opcode, ;
+: CPUID ( -- ) HEX: a2 extended-opcode, ;
 
 ! x87 Floating Point Unit
 
diff --git a/core/optimizer/backend/authors.txt b/basis/cpu/x86/assembler/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/optimizer/backend/authors.txt
rename to basis/cpu/x86/assembler/authors.txt
diff --git a/basis/cpu/x86/assembler/syntax/syntax.factor b/basis/cpu/x86/assembler/syntax/syntax.factor
new file mode 100644
index 0000000000..5940663d42
--- /dev/null
+++ b/basis/cpu/x86/assembler/syntax/syntax.factor
@@ -0,0 +1,15 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel words sequences lexer parser ;
+IN: cpu.x86.assembler.syntax
+
+: define-register ( name num size -- )
+    >r >r "cpu.x86.assembler" create dup define-symbol r> r>
+    >r dupd "register" set-word-prop r>
+    "register-size" set-word-prop ;
+
+: define-registers ( names size -- )
+    >r dup length r> [ define-register ] curry 2each ;
+
+: REGISTERS: ( -- )
+    scan-word ";" parse-tokens swap define-registers ; parsing
diff --git a/basis/cpu/x86/assembler/syntax/tags.txt b/basis/cpu/x86/assembler/syntax/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/x86/assembler/syntax/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/optimizer/def-use/authors.txt b/basis/cpu/x86/authors.txt
similarity index 100%
rename from core/optimizer/def-use/authors.txt
rename to basis/cpu/x86/authors.txt
diff --git a/basis/cpu/x86/bootstrap.factor b/basis/cpu/x86/bootstrap.factor
new file mode 100755
index 0000000000..026578b377
--- /dev/null
+++ b/basis/cpu/x86/bootstrap.factor
@@ -0,0 +1,305 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: bootstrap.image.private kernel kernel.private namespaces
+system cpu.x86.assembler layouts compiler.units math
+math.private compiler.generator.fixup compiler.constants vocabs
+slots.private words words.private ;
+IN: bootstrap.x86
+
+big-endian off
+
+1 jit-code-format set
+
+: stack-frame-size ( -- n ) 4 bootstrap-cells ;
+
+[
+    ! Load word
+    temp-reg 0 MOV
+    temp-reg dup [] MOV
+    ! Bump profiling counter
+    temp-reg profile-count-offset [+] 1 tag-fixnum ADD
+    ! Load word->code
+    temp-reg temp-reg word-code-offset [+] MOV
+    ! Compute word XT
+    temp-reg compiled-header-size ADD
+    ! Jump to XT
+    temp-reg JMP
+] rc-absolute-cell rt-literal 1 rex-length + jit-profiling jit-define
+
+[
+    temp-reg 0 MOV                             ! load XT
+    stack-frame-size PUSH                      ! save stack frame size
+    temp-reg PUSH                              ! push XT
+    arg1 PUSH                                  ! alignment
+] rc-absolute-cell rt-label 1 rex-length + jit-prolog jit-define
+
+[
+    arg0 0 MOV                                 ! load literal
+    arg0 dup [] MOV
+    ds-reg bootstrap-cell ADD                  ! increment datastack pointer
+    ds-reg [] arg0 MOV                         ! store literal on datastack
+] rc-absolute-cell rt-literal 1 rex-length + jit-push-literal jit-define
+
+[
+    arg0 0 MOV                                 ! load literal
+    ds-reg bootstrap-cell ADD                  ! increment datastack pointer
+    ds-reg [] arg0 MOV                         ! store literal on datastack
+] rc-absolute-cell rt-immediate 1 rex-length + jit-push-immediate jit-define
+
+[
+    arg0 0 MOV                                 ! load XT
+    arg1 stack-reg MOV                         ! pass callstack pointer as arg 2
+    arg0 JMP                                   ! go
+] rc-absolute-cell rt-primitive 1 rex-length + jit-primitive jit-define
+
+[
+    (JMP) drop
+] rc-relative rt-xt 1 jit-word-jump jit-define
+
+[
+    (CALL) drop
+] rc-relative rt-xt 1 jit-word-call jit-define
+
+[
+    arg1 0 MOV                                 ! load addr of true quotation
+    arg0 ds-reg [] MOV                         ! load boolean
+    ds-reg bootstrap-cell SUB                  ! pop boolean
+    arg0 \ f tag-number CMP                    ! compare it with f
+    arg0 arg1 [] CMOVNE                        ! load true branch if not equal
+    arg0 arg1 bootstrap-cell [+] CMOVE         ! load false branch if equal
+    arg0 quot-xt-offset [+] JMP                ! jump to quotation-xt
+] rc-absolute-cell rt-literal 1 rex-length + jit-if-jump jit-define
+
+[
+    arg1 0 MOV                                 ! load dispatch table
+    arg1 dup [] MOV
+    arg0 ds-reg [] MOV                         ! load index
+    fixnum>slot@                               ! turn it into an array offset
+    ds-reg bootstrap-cell SUB                  ! pop index
+    arg0 arg1 ADD                              ! compute quotation location
+    arg0 arg0 array-start-offset [+] MOV       ! load quotation
+    arg0 quot-xt-offset [+] JMP                ! execute branch
+] rc-absolute-cell rt-literal 1 rex-length + jit-dispatch jit-define
+
+[
+    stack-reg stack-frame-size bootstrap-cell - ADD ! unwind stack frame
+] f f f jit-epilog jit-define
+
+[ 0 RET ] f f f jit-return jit-define
+
+! Sub-primitives
+
+! Quotations and words
+[
+    arg0 ds-reg [] MOV                         ! load from stack
+    ds-reg bootstrap-cell SUB                  ! pop stack
+    arg0 quot-xt-offset [+] JMP                ! call quotation
+] f f f \ (call) define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV                         ! load from stack
+    ds-reg bootstrap-cell SUB                  ! pop stack
+    arg0 word-xt-offset [+] JMP                ! execute word
+] f f f \ (execute) define-sub-primitive
+
+! Objects
+[
+    arg1 ds-reg [] MOV                         ! load from stack
+    arg1 tag-mask get AND                      ! compute tag
+    arg1 tag-bits get SHL                      ! tag the tag
+    ds-reg [] arg1 MOV                         ! push to stack
+] f f f \ tag define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV                         ! load slot number
+    ds-reg bootstrap-cell SUB                  ! adjust stack pointer
+    arg1 ds-reg [] MOV                         ! load object
+    fixnum>slot@                               ! turn slot number into offset
+    arg1 tag-bits get SHR                      ! mask off tag
+    arg1 tag-bits get SHL
+    arg0 arg1 arg0 [+] MOV                     ! load slot value
+    ds-reg [] arg0 MOV                         ! push to stack
+] f f f \ slot define-sub-primitive
+
+! Shufflers
+[
+    ds-reg bootstrap-cell SUB
+] f f f \ drop define-sub-primitive
+
+[
+    ds-reg 2 bootstrap-cells SUB
+] f f f \ 2drop define-sub-primitive
+
+[
+    ds-reg 3 bootstrap-cells SUB
+] f f f \ 3drop define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    ds-reg bootstrap-cell ADD
+    ds-reg [] arg0 MOV
+] f f f \ dup define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg bootstrap-cell neg [+] MOV
+    ds-reg 2 bootstrap-cells ADD
+    ds-reg [] arg0 MOV
+    ds-reg bootstrap-cell neg [+] arg1 MOV
+] f f f \ 2dup define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg -1 bootstrap-cells [+] MOV
+    temp-reg ds-reg -2 bootstrap-cells [+] MOV
+    ds-reg 3 bootstrap-cells ADD
+    ds-reg [] arg0 MOV
+    ds-reg -1 bootstrap-cells [+] arg1 MOV
+    ds-reg -2 bootstrap-cells [+] temp-reg MOV
+] f f f \ 3dup define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    ds-reg bootstrap-cell SUB
+    ds-reg [] arg0 MOV
+] f f f \ nip define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    ds-reg 2 bootstrap-cells SUB
+    ds-reg [] arg0 MOV
+] f f f \ 2nip define-sub-primitive
+
+[
+    arg0 ds-reg -1 bootstrap-cells [+] MOV
+    ds-reg bootstrap-cell ADD
+    ds-reg [] arg0 MOV
+] f f f \ over define-sub-primitive
+
+[
+    arg0 ds-reg -2 bootstrap-cells [+] MOV
+    ds-reg bootstrap-cell ADD
+    ds-reg [] arg0 MOV
+] f f f \ pick define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg -1 bootstrap-cells [+] MOV
+    ds-reg [] arg1 MOV
+    ds-reg bootstrap-cell ADD
+    ds-reg [] arg0 MOV
+] f f f \ dupd define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg -1 bootstrap-cells [+] MOV
+    ds-reg bootstrap-cell ADD
+    ds-reg [] arg0 MOV
+    ds-reg -1 bootstrap-cells [+] arg1 MOV
+    ds-reg -2 bootstrap-cells [+] arg0 MOV
+] f f f \ tuck define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg bootstrap-cell neg [+] MOV
+    ds-reg bootstrap-cell neg [+] arg0 MOV
+    ds-reg [] arg1 MOV
+] f f f \ swap define-sub-primitive
+
+[
+    arg0 ds-reg -1 bootstrap-cells [+] MOV
+    arg1 ds-reg -2 bootstrap-cells [+] MOV
+    ds-reg -2 bootstrap-cells [+] arg0 MOV
+    ds-reg -1 bootstrap-cells [+] arg1 MOV
+] f f f \ swapd define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg -1 bootstrap-cells [+] MOV
+    temp-reg ds-reg -2 bootstrap-cells [+] MOV
+    ds-reg -2 bootstrap-cells [+] arg1 MOV
+    ds-reg -1 bootstrap-cells [+] arg0 MOV
+    ds-reg [] temp-reg MOV
+] f f f \ rot define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV
+    arg1 ds-reg -1 bootstrap-cells [+] MOV
+    temp-reg ds-reg -2 bootstrap-cells [+] MOV
+    ds-reg -2 bootstrap-cells [+] arg0 MOV
+    ds-reg -1 bootstrap-cells [+] temp-reg MOV
+    ds-reg [] arg1 MOV
+] f f f \ -rot define-sub-primitive
+
+[
+    rs-reg bootstrap-cell ADD
+    arg0 ds-reg [] MOV
+    ds-reg bootstrap-cell SUB
+    rs-reg [] arg0 MOV
+] f f f \ >r define-sub-primitive
+
+[
+    ds-reg bootstrap-cell ADD
+    arg0 rs-reg [] MOV
+    rs-reg bootstrap-cell SUB
+    ds-reg [] arg0 MOV
+] f f f \ r> define-sub-primitive
+
+! Comparisons
+: jit-compare ( insn -- )
+    arg1 0 MOV                                 ! load t
+    arg1 dup [] MOV
+    temp-reg \ f tag-number MOV                ! load f
+    arg0 ds-reg [] MOV                         ! load first value
+    ds-reg bootstrap-cell SUB                  ! adjust stack pointer
+    ds-reg [] arg0 CMP                         ! compare with second value
+    [ arg1 temp-reg ] dip execute              ! move t if true
+    ds-reg [] arg1 MOV                         ! store
+    ;
+
+: define-jit-compare ( insn word -- )
+    [ [ jit-compare ] curry rc-absolute-cell rt-literal 1 rex-length + ] dip
+    define-sub-primitive ;
+
+\ CMOVNE \ eq? define-jit-compare
+\ CMOVL \ fixnum>= define-jit-compare
+\ CMOVG \ fixnum<= define-jit-compare
+\ CMOVLE \ fixnum> define-jit-compare
+\ CMOVGE \ fixnum< define-jit-compare
+
+! Math
+: jit-math ( insn -- )
+    arg0 ds-reg [] MOV                         ! load second input
+    ds-reg bootstrap-cell SUB                  ! pop stack
+    arg1 ds-reg [] MOV                         ! load first input
+    [ arg1 arg0 ] dip execute                  ! compute result
+    ds-reg [] arg1 MOV                         ! push result
+    ;
+
+[ \ ADD jit-math ] f f f \ fixnum+fast define-sub-primitive
+
+[ \ SUB jit-math ] f f f \ fixnum-fast define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV                         ! load second input
+    ds-reg bootstrap-cell SUB                  ! pop stack
+    arg1 ds-reg [] MOV                         ! load first input
+    arg0 tag-bits get SAR                      ! untag second input
+    arg0 arg1 IMUL2                            ! multiply
+    ds-reg [] arg1 MOV                         ! push result
+] f f f \ fixnum*fast define-sub-primitive
+
+[ \ AND jit-math ] f f f \ fixnum-bitand define-sub-primitive
+
+[ \ OR jit-math ] f f f \ fixnum-bitor define-sub-primitive
+
+[ \ XOR jit-math ] f f f \ fixnum-bitxor define-sub-primitive
+
+[
+    arg0 ds-reg [] MOV                         ! load input input
+    arg0 NOT                                   ! complement
+    arg0 tag-mask get XOR                      ! clear tag bits
+    ds-reg [] arg0 MOV                         ! save
+] f f f \ fixnum-bitnot define-sub-primitive
+
+[ "bootstrap.x86" forget-vocab ] with-compilation-unit
diff --git a/core/optimizer/known-words/authors.txt b/basis/cpu/x86/intrinsics/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/optimizer/known-words/authors.txt
rename to basis/cpu/x86/intrinsics/authors.txt
diff --git a/core/cpu/x86/intrinsics/intrinsics.factor b/basis/cpu/x86/intrinsics/intrinsics.factor
similarity index 91%
rename from core/cpu/x86/intrinsics/intrinsics.factor
rename to basis/cpu/x86/intrinsics/intrinsics.factor
index 667f08c053..a0cfd1b01e 100755
--- a/core/cpu/x86/intrinsics/intrinsics.factor
+++ b/basis/cpu/x86/intrinsics/intrinsics.factor
@@ -1,13 +1,17 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.accessors arrays cpu.x86.assembler
+USING: accessors alien alien.accessors arrays cpu.x86.assembler
 cpu.x86.allot cpu.x86.architecture cpu.architecture kernel
 kernel.private math math.private namespaces quotations sequences
 words generic byte-arrays hashtables hashtables.private
-generator generator.registers generator.fixup sequences.private
-sbufs sbufs.private vectors vectors.private layouts system
-classes.tuple.private strings.private slots.private
-compiler.constants ;
+sequences.private sbufs sbufs.private
+vectors vectors.private layouts system strings.private
+slots.private 
+compiler.constants
+compiler.intrinsics
+compiler.generator
+compiler.generator.fixup
+compiler.generator.registers ;
 IN: cpu.x86.intrinsics
 
 ! Type checks
@@ -20,16 +24,16 @@ IN: cpu.x86.intrinsics
 } define-intrinsic
 
 ! Slots
-: %slot-literal-known-tag
+: %slot-literal-known-tag ( -- op )
     "obj" operand
     "n" get cells
     "obj" get operand-tag - [+] ;
 
-: %slot-literal-any-tag
+: %slot-literal-any-tag ( -- op )
     "obj" operand %untag
     "obj" operand "n" get cells [+] ;
 
-: %slot-any
+: %slot-any ( -- op )
     "obj" operand %untag
     "n" operand fixnum>slot@
     "obj" operand "n" operand [+] ;
@@ -289,50 +293,42 @@ IN: cpu.x86.intrinsics
     { +clobber+ { "n" } }
 } define-intrinsic
 
-\ <tuple> [
-    tuple "layout" get layout-size 2 + cells [
+\ (tuple) [
+    tuple "layout" get size>> 2 + cells [
         ! Store layout
         "layout" get "scratch" get load-literal
         1 object@ "scratch" operand MOV
-        ! Zero out the rest of the tuple
-        "layout" get layout-size [
-            2 + object@ f v>operand MOV
-        ] each
         ! Store tagged ptr in reg
         "tuple" get tuple %store-tagged
     ] %allot
 ] H{
-    { +input+ { { [ tuple-layout? ] "layout" } } }
+    { +input+ { { [ ] "layout" } } }
     { +scratch+ { { f "tuple" } { f "scratch" } } }
     { +output+ { "tuple" } }
 } define-intrinsic
 
-\ <array> [
+\ (array) [
     array "n" get 2 + cells [
         ! Store length
         1 object@ "n" operand MOV
-        ! Zero out the rest of the tuple
-        "n" get [ 2 + object@ "initial" operand MOV ] each
         ! Store tagged ptr in reg
         "array" get object %store-tagged
     ] %allot
 ] H{
-    { +input+ { { [ inline-array? ] "n" } { f "initial" } } }
+    { +input+ { { [ ] "n" } } }
     { +scratch+ { { f "array" } } }
     { +output+ { "array" } }
 } define-intrinsic
 
-\ <byte-array> [
+\ (byte-array) [
     byte-array "n" get 2 cells + [
         ! Store length
         1 object@ "n" operand MOV
-        ! Store initial element
-        "n" get cell align cell /i [ 2 + object@ 0 MOV ] each
         ! Store tagged ptr in reg
         "array" get object %store-tagged
     ] %allot
 ] H{
-    { +input+ { { [ inline-array? ] "n" } } }
+    { +input+ { { [ ] "n" } } }
     { +scratch+ { { f "array" } } }
     { +output+ { "array" } }
 } define-intrinsic
@@ -399,23 +395,21 @@ IN: cpu.x86.intrinsics
         { +clobber+ { "offset" } }
     } ;
 
-: define-getter
+: define-getter ( word quot reg -- )
     [ %alien-integer-get ] 2curry
     alien-integer-get-template
     define-intrinsic ;
 
-: define-unsigned-getter
+: define-unsigned-getter ( word reg -- )
     [ small-reg dup XOR MOV ] swap define-getter ;
 
-: define-signed-getter
+: define-signed-getter ( word reg -- )
     [ [ >r MOV small-reg r> MOVSX ] curry ] keep define-getter ;
 
 : %alien-integer-set ( quot reg -- )
     small-reg PUSH
-    "offset" get "value" get = [
-        "value" operand %untag-fixnum
-    ] unless
     small-reg "value" operand MOV
+    small-reg %untag-fixnum
     swap %alien-accessor
     small-reg POP ; inline
 
@@ -429,7 +423,7 @@ IN: cpu.x86.intrinsics
         { +clobber+ { "value" "offset" } }
     } ;
 
-: define-setter
+: define-setter ( word reg -- )
     [ swap MOV ] swap
     [ %alien-integer-set ] 2curry
     alien-integer-set-template
diff --git a/basis/cpu/x86/intrinsics/tags.txt b/basis/cpu/x86/intrinsics/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/x86/intrinsics/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/optimizer/math/authors.txt b/basis/cpu/x86/sse2/authors.txt
similarity index 100%
rename from core/optimizer/math/authors.txt
rename to basis/cpu/x86/sse2/authors.txt
diff --git a/core/cpu/x86/sse2/sse2.factor b/basis/cpu/x86/sse2/sse2.factor
similarity index 93%
rename from core/cpu/x86/sse2/sse2.factor
rename to basis/cpu/x86/sse2/sse2.factor
index fb96649753..59a9a83ab3 100755
--- a/core/cpu/x86/sse2/sse2.factor
+++ b/basis/cpu/x86/sse2/sse2.factor
@@ -1,10 +1,10 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.accessors arrays cpu.x86.assembler
 cpu.x86.architecture cpu.x86.intrinsics generic kernel
 kernel.private math math.private memory namespaces sequences
-words generator generator.registers cpu.architecture
-math.floats.private layouts quotations ;
+words compiler.generator compiler.generator.registers
+cpu.architecture math.floats.private layouts quotations ;
 IN: cpu.x86.sse2
 
 : define-float-op ( word op -- )
diff --git a/core/cpu/x86/sse2/summary.txt b/basis/cpu/x86/sse2/summary.txt
similarity index 100%
rename from core/cpu/x86/sse2/summary.txt
rename to basis/cpu/x86/sse2/summary.txt
diff --git a/basis/cpu/x86/sse2/tags.txt b/basis/cpu/x86/sse2/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/cpu/x86/sse2/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/cpu/x86/summary.txt b/basis/cpu/x86/summary.txt
similarity index 100%
rename from core/cpu/x86/summary.txt
rename to basis/cpu/x86/summary.txt
diff --git a/extra/csv/authors.txt b/basis/csv/authors.txt
similarity index 100%
rename from extra/csv/authors.txt
rename to basis/csv/authors.txt
diff --git a/extra/csv/csv-docs.factor b/basis/csv/csv-docs.factor
similarity index 63%
rename from extra/csv/csv-docs.factor
rename to basis/csv/csv-docs.factor
index c9f39900ab..e4741f4810 100644
--- a/extra/csv/csv-docs.factor
+++ b/basis/csv/csv-docs.factor
@@ -2,20 +2,27 @@ USING: help.syntax help.markup kernel prettyprint sequences ;
 IN: csv
 
 HELP: csv
-{ $values { "stream" "a stream" }
+{ $values { "stream" "an input stream" }
           { "rows" "an array of arrays of fields" } } 
 { $description "parses a csv stream into an array of row arrays"
 } ;
 
 HELP: csv-row
-{ $values { "stream" "a stream" }
+{ $values { "stream" "an input stream" }
           { "row" "an array of fields" } } 
 { $description "parses a row from a csv stream"
 } ;
 
+HELP: write-csv
+{ $values { "rows" "an sequence of sequences of strings" }
+          { "stream" "an output stream" } } 
+{ $description "writes csv to the output stream, escaping where necessary"
+} ;
+
 
 HELP: with-delimiter
 { $values { "char" "field delimiter (e.g. CHAR: \t)" }
           { "quot" "a quotation" } }
 { $description "Sets the field delimiter for csv or csv-row words "
 } ;
+
diff --git a/extra/csv/csv-tests.factor b/basis/csv/csv-tests.factor
similarity index 86%
rename from extra/csv/csv-tests.factor
rename to basis/csv/csv-tests.factor
index 7e96dbc0a6..8261ae104a 100644
--- a/extra/csv/csv-tests.factor
+++ b/basis/csv/csv-tests.factor
@@ -1,5 +1,5 @@
-USING: io.streams.string csv tools.test shuffle ;
 IN: csv.tests
+USING: io.streams.string csv tools.test shuffle kernel strings ;
 
 ! I like to name my unit tests
 : named-unit-test ( name output input -- ) 
@@ -68,3 +68,11 @@ IN: csv.tests
 [ { { "foo" "bar" }
     { "1"   "2" } } ]
 [ "foo,\"bar\"\n1,2" <string-reader> csv ] named-unit-test
+
+"can write csv too!"
+[ "foo1,bar1\nfoo2,bar2\n" ]
+[ { { "foo1" "bar1" } { "foo2" "bar2" } } <string-writer> tuck write-csv >string ] named-unit-test
+
+"escapes quotes commas and newlines when writing"
+[ "\"fo\"\"o1\",bar1\n\"fo\no2\",\"b,ar2\"\n" ]
+[ { { "fo\"o1" "bar1" } { "fo\no2" "b,ar2" } } <string-writer> tuck write-csv >string ] named-unit-test ! "
diff --git a/extra/csv/csv.factor b/basis/csv/csv.factor
similarity index 67%
rename from extra/csv/csv.factor
rename to basis/csv/csv.factor
index 8ba0832b29..59a3f21863 100644
--- a/extra/csv/csv.factor
+++ b/basis/csv/csv.factor
@@ -4,13 +4,17 @@
 ! Simple CSV Parser
 ! Phil Dawes phil@phildawes.net
 
-USING: kernel sequences io namespaces combinators unicode.categories vars ;
+USING: kernel sequences io namespaces combinators unicode.categories ;
 IN: csv
 
-DEFER: quoted-field
+SYMBOL: delimiter
 
-VAR: delimiter
+CHAR: , delimiter set-global
 
+: delimiter> delimiter get ; inline
+    
+DEFER: quoted-field ( -- endchar )
+    
 ! trims whitespace from either end of string
 : trim-whitespace ( str -- str )
   [ blank? ] trim ; inline
@@ -44,7 +48,7 @@ VAR: delimiter
 
 : (row) ( -- sep )
   field , 
-  dup delimiter> = [ drop (row) ] when ;
+  dup delimiter get = [ drop (row) ] when ;
 
 : row ( -- eof? array[string] )
   [ (row) ] { } make ;
@@ -55,17 +59,30 @@ VAR: delimiter
 : (csv) ( -- )
   row append-if-row-not-empty
   [ (csv) ] when ;
-
-: init-vars ( -- )
-  delimiter> [ CHAR: , >delimiter ] unless ; inline
   
 : csv-row ( stream -- row )
-  init-vars
   [ row nip ] with-input-stream ;
 
 : csv ( stream -- rows )
-  init-vars
   [ [ (csv) ] { } make ] with-input-stream ;
 
 : with-delimiter ( char quot -- )
   delimiter swap with-variable ; inline
+
+: needs-escaping? ( cell -- ? )
+  [ [ "\n\"" member? ] [ delimiter get = ] bi or ] contains? ; inline ! "
+
+: escape-quotes ( cell -- cell' )
+  [ [ dup , CHAR: " = [ CHAR: " , ] when ] each ] "" make ; inline
+
+: enclose-in-quotes ( cell -- cell' )
+  CHAR: " [ prefix ] [ suffix ] bi ; inline ! "
+    
+: escape-if-required ( cell -- cell' )
+  dup needs-escaping? [ escape-quotes enclose-in-quotes ] when ; inline
+    
+: write-row ( row -- )
+  [ delimiter get write1 ] [ escape-if-required write ] interleave nl ; inline
+    
+: write-csv ( rows stream -- )
+  [ [ write-row ] each ] with-output-stream ;
diff --git a/extra/csv/summary.txt b/basis/csv/summary.txt
similarity index 100%
rename from extra/csv/summary.txt
rename to basis/csv/summary.txt
diff --git a/extra/classes/tuple/lib/authors.txt b/basis/db/authors.txt
similarity index 100%
rename from extra/classes/tuple/lib/authors.txt
rename to basis/db/authors.txt
diff --git a/basis/db/db-docs.factor b/basis/db/db-docs.factor
new file mode 100644
index 0000000000..9395fcce32
--- /dev/null
+++ b/basis/db/db-docs.factor
@@ -0,0 +1,161 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: classes kernel help.markup help.syntax sequences
+alien assocs strings math multiline ;
+IN: db
+
+HELP: db
+{ $description "The " { $snippet "db" } " class is the superclass of all other database classes.  It stores a " { $snippet "handle" } " to the database as well as insert, update, and delete queries." } ;
+
+HELP: new-db
+{ $values { "class" class } { "obj" object } }
+{ $description "Creates a new database object from a given class." } ;
+
+HELP: make-db*
+{ $values { "seq" sequence } { "db" object } { "db" object } }
+{ $description "Takes a sequence of parameters specific to each database and a class name of the database, and constructs a new database object." } ;
+
+HELP: make-db
+{ $values { "seq" sequence } { "class" class } { "db" db } }
+{ $description "Takes a sequence of parameters specific to each database and a class name of the database, and constructs a new database object." } ;
+
+HELP: db-open
+{ $values { "db" db } { "db" db } }
+{ $description "Opens a database using the configuration data stored in a " { $link db } " tuple." } ;
+
+HELP: db-close
+{ $values { "handle" alien } }
+{ $description "Closes a database using the handle provided." } ;
+
+HELP: dispose-statements
+{ $values { "assoc" assoc } }
+{ $description "Disposes an associative list of statements." } ;
+
+HELP: db-dispose
+{ $values { "db" db } }
+{ $description "Disposes of all the statements stored in the " { $link db } " object." } ;
+
+HELP: statement
+{ $description "A " { $snippet "statement" } " stores the information about a statemen, such as the SQL statement text, the in/out parameters, and type information." } ;
+
+HELP: simple-statement
+{ $description } ;
+
+HELP: prepared-statement
+{ $description } ;
+
+HELP: result-set
+{ $description } ;
+
+HELP: new-statement
+{ $values { "sql" string } { "in" sequence } { "out" sequence } { "class" class } { "statement" statement } }
+{ $description "Makes a new statement object from the given parameters." } ;
+
+HELP: <simple-statement>
+{ $values { "string" string } { "in" sequence } { "out" sequence }
+    { "statement" statement } }
+{ $description "Makes a new simple statement object from the given parameters." } ;
+
+HELP: <prepared-statement>
+{ $values { "string" string } { "in" sequence } { "out" sequence }
+    { "statement" statement } }
+{ $description "Makes a new prepared statement object from the given parameters." } ;
+
+HELP: prepare-statement
+{ $values { "statement" statement } }
+{ $description "For databases which implement a method on this generic, it does some internal processing to ready the statement for execution." } ;
+
+HELP: bind-statement*
+{ $values { "statement" statement } }
+{ $description "" } ;
+
+HELP: low-level-bind
+{ $values { "statement" statement } }
+{ $description "" } ;
+
+HELP: bind-tuple
+{ $values { "tuple" tuple } { "statement" statement } }
+{ $description "" } ;
+
+HELP: query-results
+{ $values { "query" object }
+    { "result-set" result-set }
+}
+{ $description "" } ;
+
+HELP: #rows
+{ $values { "result-set" result-set } { "n" integer } }
+{ $description "Returns the number of rows in a result set." } ;
+
+HELP: #columns
+{ $values { "result-set" result-set } { "n" integer } }
+{ $description "Returns the number of columns in a result set." } ;
+
+HELP: row-column
+{ $values { "result-set" result-set } { "column" integer }
+    { "obj" object }
+}
+{ $description "" } ;
+
+HELP: row-column-typed
+{ $values { "result-set" result-set } { "column" integer }
+    { "sql" "sql" } }
+{ $description "" } ;
+
+HELP: advance-row
+{ $values { "result-set" result-set } }
+;
+
+HELP: more-rows?
+{ $values { "result-set" result-set } { "?" "a boolean" } }
+;
+
+HELP: execute-statement*
+{ $values { "statement" statement } { "type" object } }
+{ $description } ;
+
+HELP: execute-statement
+{ $values { "statement" statement } }
+{ $description } ;
+
+ARTICLE: "db" "Low-level database library"
+{ $subsection "db-custom-database-combinators" }
+{ $subsection "db-protocol" }
+{ $subsection "db-lowlevel-tutorial" }
+"Higher-level database:"
+{ $vocab-subsection "Database types" "db.types" }
+{ $vocab-subsection "High-level tuple/database integration" "db.tuples" }
+"Supported database backends:"
+{ $vocab-subsection "SQLite" "db.sqlite" }
+{ $vocab-subsection "PostgreSQL" "db.postgresql" }
+"To add support for another database to Factor:"
+{ $subsection "db-porting-the-library" }
+;
+
+ARTICLE: "db-protocol" "Low-level database protocol"
+"The high-level protocol (see " { $vocab-link "db.tuples" } ") uses this low-level protocol for executing statements and queries."
+;
+
+ARTICLE: "db-lowlevel-tutorial" "Low-level database tutorial"
+"Although Factor makes integrating a database with its object system easy (see " { $vocab-link "db.tuples" } "), sometimes you may want to write SQL directly and get the results back as arrays of strings, for instance, when interfacing with a legacy database that doesn't easily map to " { $snippet "tuples" } "."
+;
+
+ARTICLE: "db-porting-the-library" "Porting the database library"
+"This section is not yet written."
+;
+
+
+ARTICLE: "db-custom-database-combinators" "Custom database combinators"
+"Every database library requires some effort on the programmer's part to initialize and open a database.  SQLite uses files on your harddisk, so a simple pathname is all the setup required. With PostgreSQL, you log in to a networked server as a user on a specfic port." $nl
+
+"Make a " { $snippet "with-" } " word to open, close, and use your database."
+{ $code <"
+USING: db.sqlite db io.files ;
+: with-my-database ( quot -- )
+    { "my-database.db" temp-file } sqlite-db rot with-db ;
+"> }
+
+
+;
+
+ABOUT: "db"
diff --git a/extra/db/db-tests.factor b/basis/db/db-tests.factor
similarity index 96%
rename from extra/db/db-tests.factor
rename to basis/db/db-tests.factor
index 0d95e3aea7..3f1dab2c37 100755
--- a/extra/db/db-tests.factor
+++ b/basis/db/db-tests.factor
@@ -1,5 +1,5 @@
-IN: db.tests
 USING: tools.test db kernel ;
+IN: db.tests
 
 { 1 0 } [ [ drop ] query-each ] must-infer-as
 { 1 1 } [ [ ] query-map ] must-infer-as
diff --git a/extra/db/db.factor b/basis/db/db.factor
similarity index 74%
rename from extra/db/db.factor
rename to basis/db/db.factor
index 8d1feca6c7..eac22a2999 100755
--- a/extra/db/db.factor
+++ b/basis/db/db.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays assocs classes continuations destructors kernel math
-namespaces sequences sequences.lib classes.tuple words strings
-tools.walker accessors combinators.lib ;
+namespaces sequences classes.tuple words strings
+tools.walker accessors combinators ;
 IN: db
 
 TUPLE: db
@@ -15,44 +15,29 @@ TUPLE: db
     new
         H{ } clone >>insert-statements
         H{ } clone >>update-statements
-        H{ } clone >>delete-statements ;
+        H{ } clone >>delete-statements ; inline
 
-GENERIC: make-db* ( seq class -- db )
+GENERIC: make-db* ( object db -- db )
 
-: make-db ( seq class -- db )
-    new-db make-db* ;
+: make-db ( object class -- db ) new-db make-db* ;
 
 GENERIC: db-open ( db -- db )
 HOOK: db-close db ( handle -- )
 
 : dispose-statements ( assoc -- ) values dispose-each ;
 
-: dispose-db ( db -- ) 
+: db-dispose ( db -- ) 
     dup db [
-        dup insert-statements>> dispose-statements
-        dup update-statements>> dispose-statements
-        dup delete-statements>> dispose-statements
-        handle>> db-close
+        {
+            [ insert-statements>> dispose-statements ]
+            [ update-statements>> dispose-statements ]
+            [ delete-statements>> dispose-statements ]
+            [ handle>> db-close ]
+        } cleave
     ] with-variable ;
 
-TUPLE: statement handle sql in-params out-params bind-params bound? type ;
-TUPLE: simple-statement < statement ;
-TUPLE: prepared-statement < statement ;
-
 TUPLE: result-set sql in-params out-params handle n max ;
 
-: construct-statement ( sql in out class -- statement )
-    new
-        swap >>out-params
-        swap >>in-params
-        swap >>sql ;
-
-HOOK: <simple-statement> db ( str in out -- statement )
-HOOK: <prepared-statement> db ( str in out -- statement )
-GENERIC: prepare-statement ( statement -- )
-GENERIC: bind-statement* ( statement -- )
-GENERIC: low-level-bind ( statement -- )
-GENERIC: bind-tuple ( tuple statement -- )
 GENERIC: query-results ( query -- result-set )
 GENERIC: #rows ( result-set -- n )
 GENERIC: #columns ( result-set -- n )
@@ -61,6 +46,35 @@ GENERIC# row-column-typed 1 ( result-set column -- sql )
 GENERIC: advance-row ( result-set -- )
 GENERIC: more-rows? ( result-set -- ? )
 
+: init-result-set ( result-set -- )
+    dup #rows >>max
+    0 >>n drop ;
+
+: new-result-set ( query handle class -- result-set )
+    new
+        swap >>handle
+        >r [ sql>> ] [ in-params>> ] [ out-params>> ] tri r>
+        swap >>out-params
+        swap >>in-params
+        swap >>sql ;
+
+TUPLE: statement handle sql in-params out-params bind-params bound? type retries ;
+TUPLE: simple-statement < statement ;
+TUPLE: prepared-statement < statement ;
+
+: new-statement ( sql in out class -- statement )
+    new
+        swap >>out-params
+        swap >>in-params
+        swap >>sql ;
+
+HOOK: <simple-statement> db ( string in out -- statement )
+HOOK: <prepared-statement> db ( string in out -- statement )
+GENERIC: prepare-statement ( statement -- )
+GENERIC: bind-statement* ( statement -- )
+GENERIC: low-level-bind ( statement -- )
+GENERIC: bind-tuple ( tuple statement -- )
+
 GENERIC: execute-statement* ( statement type -- )
 
 M: object execute-statement* ( statement type -- )
@@ -78,61 +92,30 @@ M: object execute-statement* ( statement type -- )
     [ bind-statement* ] keep
     t >>bound? drop ;
 
-: init-result-set ( result-set -- )
-    dup #rows >>max
-    0 >>n drop ;
-
-: construct-result-set ( query handle class -- result-set )
-    new
-        swap >>handle
-        >r [ sql>> ] [ in-params>> ] [ out-params>> ] tri r>
-        swap >>out-params
-        swap >>in-params
-        swap >>sql ;
-    
 : sql-row ( result-set -- seq )
     dup #columns [ row-column ] with map ;
 
 : sql-row-typed ( result-set -- seq )
     dup #columns [ row-column-typed ] with map ;
 
-: query-each ( statement quot -- )
+: query-each ( statement quot: ( statement -- ) -- )
     over more-rows? [
         [ call ] 2keep over advance-row query-each
     ] [
         2drop
-    ] if ; inline
+    ] if ; inline recursive
 
 : query-map ( statement quot -- seq )
-    accumulator >r query-each r> { } like ; inline
+    accumulator [ query-each ] dip { } like ; inline
 
 : with-db ( seq class quot -- )
-    >r make-db db-open db r>
+    [ make-db db-open db ] dip
     [ db get swap [ drop ] prepose with-disposal ] curry with-variable ;
     inline
 
 : default-query ( query -- result-set )
     query-results [ [ sql-row ] query-map ] with-disposal ;
 
-: do-bound-query ( obj query -- rows )
-    [ bind-statement ] keep default-query ;
-
-: do-bound-command ( obj query -- )
-    [ bind-statement ] keep execute-statement ;
-
-SYMBOL: in-transaction
-HOOK: begin-transaction db ( -- )
-HOOK: commit-transaction db ( -- )
-HOOK: rollback-transaction db ( -- )
-
-: in-transaction? ( -- ? ) in-transaction get ;
-
-: with-transaction ( quot -- )
-    t in-transaction [
-        begin-transaction
-        [ ] [ rollback-transaction ] cleanup commit-transaction
-    ] with-variable ;
-
 : sql-query ( sql -- rows )
     f f <simple-statement> [ default-query ] with-disposal ;
 
@@ -144,3 +127,20 @@ HOOK: rollback-transaction db ( -- )
             [ sql-command ] each
         ! ] with-transaction
     ] if ;
+
+SYMBOL: in-transaction
+HOOK: begin-transaction db ( -- )
+HOOK: commit-transaction db ( -- )
+HOOK: rollback-transaction db ( -- )
+
+M: db begin-transaction ( -- ) "BEGIN" sql-command ;
+M: db commit-transaction ( -- ) "COMMIT" sql-command ;
+M: db rollback-transaction ( -- ) "ROLLBACK" sql-command ;
+
+: in-transaction? ( -- ? ) in-transaction get ;
+
+: with-transaction ( quot -- )
+    t in-transaction [
+        begin-transaction
+        [ ] [ rollback-transaction ] cleanup commit-transaction
+    ] with-variable ;
diff --git a/extra/db/errors/errors.factor b/basis/db/errors/errors.factor
similarity index 99%
rename from extra/db/errors/errors.factor
rename to basis/db/errors/errors.factor
index 1e0d1e7fb4..da6301639f 100644
--- a/extra/db/errors/errors.factor
+++ b/basis/db/errors/errors.factor
@@ -6,6 +6,5 @@ IN: db.errors
 ERROR: db-error ;
 ERROR: sql-error ;
 
-
 ERROR: table-exists ;
 ERROR: bad-schema ;
diff --git a/basis/db/pools/pools-tests.factor b/basis/db/pools/pools-tests.factor
new file mode 100644
index 0000000000..f07d1e8468
--- /dev/null
+++ b/basis/db/pools/pools-tests.factor
@@ -0,0 +1,22 @@
+IN: db.pools.tests
+USING: db.pools tools.test continuations io.files namespaces
+accessors kernel math destructors ;
+
+\ <db-pool> must-infer
+
+{ 2 0 } [ [ ] with-db-pool ] must-infer-as
+
+{ 1 0 } [ [ ] with-pooled-db ] must-infer-as
+
+! Test behavior after image save/load
+USE: db.sqlite
+
+[ "pool-test.db" temp-file delete-file ] ignore-errors
+
+[ ] [ "pool-test.db" temp-file sqlite-db <db-pool> "pool" set ] unit-test
+
+[ ] [ "pool" get expired>> t >>expired drop ] unit-test
+
+[ ] [ 1000 [ "pool" get [ ] with-pooled-db ] times ] unit-test
+
+[ ] [ "pool" get dispose ] unit-test
diff --git a/extra/db/pools/pools.factor b/basis/db/pools/pools.factor
similarity index 100%
rename from extra/db/pools/pools.factor
rename to basis/db/pools/pools.factor
diff --git a/extra/db/authors.txt b/basis/db/postgresql/authors.txt
similarity index 100%
rename from extra/db/authors.txt
rename to basis/db/postgresql/authors.txt
diff --git a/extra/db/postgresql/ffi/ffi.factor b/basis/db/postgresql/ffi/ffi.factor
similarity index 99%
rename from extra/db/postgresql/ffi/ffi.factor
rename to basis/db/postgresql/ffi/ffi.factor
index 3686afa80c..4358d7f3de 100755
--- a/extra/db/postgresql/ffi/ffi.factor
+++ b/basis/db/postgresql/ffi/ffi.factor
@@ -281,7 +281,7 @@ FUNCTION: void PQclear ( PGresult* res ) ;
 FUNCTION: void PQfreemem ( void* ptr ) ;
 
 ! Exists for backward compatibility.
-: PQfreeNotify PQfreemem ;
+: PQfreeNotify ( ptr -- ) PQfreemem ;
 
 !
 ! Make an empty PGresult with given status (some apps find this
diff --git a/extra/db/postgresql/lib/lib.factor b/basis/db/postgresql/lib/lib.factor
similarity index 94%
rename from extra/db/postgresql/lib/lib.factor
rename to basis/db/postgresql/lib/lib.factor
index ebcc67374b..63284b28a3 100755
--- a/extra/db/postgresql/lib/lib.factor
+++ b/basis/db/postgresql/lib/lib.factor
@@ -5,7 +5,7 @@ quotations sequences db.postgresql.ffi alien alien.c-types
 db.types tools.walker ascii splitting math.parser combinators
 libc shuffle calendar.format byte-arrays destructors prettyprint
 accessors strings serialize io.encodings.binary io.encodings.utf8
-alien.strings io.streams.byte-array inspector ;
+alien.strings io.streams.byte-array summary present urls ;
 IN: db.postgresql.lib
 
 : postgresql-result-error-message ( res -- str/f )
@@ -66,10 +66,10 @@ M: postgresql-result-null summary ( obj -- str )
 : param-types ( statement -- seq )
     in-params>> [ type>> type>oid ] map >c-uint-array ;
 
-: malloc-byte-array/length
+: malloc-byte-array/length ( byte-array -- alien length )
     [ malloc-byte-array &free ] [ length ] bi ;
 
-: default-param-value
+: default-param-value ( obj -- alien n )
     number>string* dup [ utf8 malloc-string &free ] when 0 ;
 
 : param-values ( statement -- seq seq2 )
@@ -84,13 +84,14 @@ M: postgresql-result-null summary ( obj -- str )
             { TIME [ dup [ timestamp>hms ] when default-param-value ] }
             { DATETIME [ dup [ timestamp>ymdhms ] when default-param-value ] }
             { TIMESTAMP [ dup [ timestamp>ymdhms ] when default-param-value ] }
+            { URL [ dup [ present ] when default-param-value ] }
             [ drop default-param-value ]
         } case 2array
-    ] 2map flip dup empty? [
-        drop f f
+    ] 2map flip [
+        f f
     ] [
         first2 [ >c-void*-array ] [ >c-uint-array ] bi*
-    ] if ;
+    ] if-empty ;
 
 : param-formats ( statement -- seq )
     in-params>> [ type>> type>param-format ] map >c-uint-array ;
@@ -164,6 +165,7 @@ M: postgresql-malloc-destructor dispose ( obj -- )
         { TIMESTAMP [ pq-get-string dup [ ymdhms>timestamp ] when ] }
         { DATETIME [ pq-get-string dup [ ymdhms>timestamp ] when ] }
         { BLOB [ pq-get-blob ] }
+        { URL [ pq-get-string dup [ >url ] when ] }
         { FACTOR-BLOB [
             pq-get-blob
             dup [ bytes>object ] when ] }
diff --git a/extra/db/postgresql/postgresql-tests.factor b/basis/db/postgresql/postgresql-tests.factor
similarity index 100%
rename from extra/db/postgresql/postgresql-tests.factor
rename to basis/db/postgresql/postgresql-tests.factor
diff --git a/extra/db/postgresql/postgresql.factor b/basis/db/postgresql/postgresql.factor
similarity index 91%
rename from extra/db/postgresql/postgresql.factor
rename to basis/db/postgresql/postgresql.factor
index f55897db88..ae31b168cb 100755
--- a/extra/db/postgresql/postgresql.factor
+++ b/basis/db/postgresql/postgresql.factor
@@ -4,8 +4,8 @@ USING: arrays assocs alien alien.syntax continuations io
 kernel math math.parser namespaces prettyprint quotations
 sequences debugger db db.postgresql.lib db.postgresql.ffi
 db.tuples db.types tools.annotations math.ranges
-combinators sequences.lib classes locals words tools.walker
-namespaces.lib accessors random db.queries destructors ;
+combinators classes locals words tools.walker
+nmake accessors random db.queries destructors ;
 USE: tools.walker
 IN: db.postgresql
 
@@ -16,7 +16,7 @@ TUPLE: postgresql-statement < statement ;
 
 TUPLE: postgresql-result-set < result-set ;
 
-M: postgresql-db make-db* ( seq tuple -- db )
+M: postgresql-db make-db* ( seq db -- db )
     >r first4 r>
         swap >>db
         swap >>pass
@@ -40,15 +40,15 @@ M: postgresql-db dispose ( db -- )
 M: postgresql-statement bind-statement* ( statement -- )
     drop ;
 
-GENERIC: postgresql-bind-conversion ( tuple obj -- low-level-binding )
+GENERIC: postgresql-bind-conversion ( tuple object -- low-level-binding )
 
-M: sql-spec postgresql-bind-conversion ( tuple spec -- obj )
+M: sql-spec postgresql-bind-conversion ( tuple spec -- object )
     slot-name>> swap get-slot-named <low-level-binding> ;
 
-M: literal-bind postgresql-bind-conversion ( tuple literal-bind -- obj )
+M: literal-bind postgresql-bind-conversion ( tuple literal-bind -- object )
     nip value>> <low-level-binding> ;
 
-M: generator-bind postgresql-bind-conversion ( tuple generate-bind -- obj )
+M: generator-bind postgresql-bind-conversion ( tuple generate-bind -- object )
     dup generator-singleton>> eval-generator
     [ swap slot-name>> rot set-slot-named ] [ <low-level-binding> ] bi ;
 
@@ -66,10 +66,10 @@ M: postgresql-result-set #columns ( result-set -- n )
 : result-handle-n ( result-set -- handle n )
     [ handle>> ] [ n>> ] bi ;
 
-M: postgresql-result-set row-column ( result-set column -- obj )
+M: postgresql-result-set row-column ( result-set column -- object )
     >r result-handle-n r> pq-get-string ;
 
-M: postgresql-result-set row-column-typed ( result-set column -- obj )
+M: postgresql-result-set row-column-typed ( result-set column -- object )
     dup pick out-params>> nth type>>
     >r >r result-handle-n r> r> postgresql-column-typed ;
 
@@ -80,7 +80,7 @@ M: postgresql-statement query-results ( query -- result-set )
     ] [
         dup do-postgresql-statement
     ] if*
-    postgresql-result-set construct-result-set
+    postgresql-result-set new-result-set
     dup init-result-set ;
 
 M: postgresql-result-set advance-row ( result-set -- )
@@ -109,7 +109,7 @@ M: postgresql-statement prepare-statement ( statement -- )
     >>handle drop ;
 
 M: postgresql-db <simple-statement> ( sql in out -- statement )
-    postgresql-statement construct-statement ;
+    postgresql-statement new-statement ;
 
 M: postgresql-db <prepared-statement> ( sql in out -- statement )
     <simple-statement> dup prepare-statement ;
@@ -121,7 +121,7 @@ M: postgresql-db <prepared-statement> ( sql in out -- statement )
 M: postgresql-db bind% ( spec -- )
     bind-name% 1, ;
 
-M: postgresql-db bind# ( spec obj -- )
+M: postgresql-db bind# ( spec object -- )
     >r bind-name% f swap type>> r> <literal-bind> 1, ;
 
 : create-table-sql ( class -- statement )
@@ -239,6 +239,7 @@ M: postgresql-db persistent-table ( -- hashtable )
         { TIMESTAMP { "timestamp" "timestamp" f } }
         { BLOB { "bytea" "bytea" f } }
         { FACTOR-BLOB { "bytea" "bytea" f } }
+        { URL { "varchar" "varchar" f } }
         { +foreign-id+ { f f "references" } }
         { +autoincrement+ { f f "autoincrement" } }
         { +unique+ { f f "unique" } }
@@ -250,7 +251,8 @@ M: postgresql-db persistent-table ( -- hashtable )
         { random-generator { f f f } }
     } ;
 
-M: postgresql-db compound ( str obj -- str' )
+ERROR: no-compound-found string object ;
+M: postgresql-db compound ( string object -- string' )
     over {
         { "default" [ first number>string join-space ] }
         { "varchar" [ first number>string paren append ] }
@@ -259,5 +261,5 @@ M: postgresql-db compound ( str obj -- str' )
                 swap [ slot-name>> = ] with find nip
                 column-name>> paren append
             ] }
-        [ "no compound found" 3array throw ]
+        [ drop no-compound-found ]
     } case ;
diff --git a/extra/db/queries/queries.factor b/basis/db/queries/queries.factor
similarity index 57%
rename from extra/db/queries/queries.factor
rename to basis/db/queries/queries.factor
index 59ee60aa1f..ede7612942 100644
--- a/extra/db/queries/queries.factor
+++ b/basis/db/queries/queries.factor
@@ -1,25 +1,55 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel math namespaces sequences random
-strings math.parser math.intervals combinators
-math.bitfields.lib namespaces.lib db db.tuples db.types ;
+USING: accessors kernel math namespaces sequences random strings
+math.parser math.intervals combinators math.bitwise nmake db
+db.tuples db.types db.sql classes words shuffle arrays destructors
+continuations ;
 IN: db.queries
 
 GENERIC: where ( specs obj -- )
 
+SINGLETON: retryable
+: make-retryable ( obj -- obj' )
+    dup sequence? [
+        [ make-retryable ] map
+    ] [
+        retryable >>type
+        10 >>retries
+    ] if ;
+
 : maybe-make-retryable ( statement -- statement )
     dup in-params>> [ generator-bind? ] contains?
     [ make-retryable ] when ;
 
+: regenerate-params ( statement -- statement )
+    dup 
+    [ bind-params>> ] [ in-params>> ] bi
+    [
+        dup generator-bind? [
+            generator-singleton>> eval-generator >>value
+        ] [
+            drop
+        ] if
+    ] 2map >>bind-params ;
+    
+M: retryable execute-statement* ( statement type -- )
+    drop [ retries>> ] [
+        [
+            nip
+            [ query-results dispose t ]
+            [ ] 
+            [ regenerate-params bind-statement* f ] cleanup
+        ] curry
+    ] bi attempt-all drop ;
+
+: sql-props ( class -- columns table )
+    [ db-columns ] [ db-table ] bi ;
+
 : query-make ( class quot -- )
     >r sql-props r>
-    [ 0 sql-counter rot with-variable ] { "" { } { } } nmake
+    [ 0 sql-counter rot with-variable ] curry { "" { } { } } nmake
     <simple-statement> maybe-make-retryable ; inline
 
-M: db begin-transaction ( -- ) "BEGIN" sql-command ;
-M: db commit-transaction ( -- ) "COMMIT" sql-command ;
-M: db rollback-transaction ( -- ) "ROLLBACK" sql-command ;
-
 : where-primary-key% ( specs -- )
     " where " 0%
     find-primary-key dup column-name>> 0% " = " 0% bind% ;
@@ -36,19 +66,12 @@ M: db <update-tuple-statement> ( class -- statement )
 M: random-id-generator eval-generator ( singleton -- obj )
     drop
     system-random-generator get [
-        63 [ 2^ random ] keep 1 - set-bit
+        63 [ random-bits ] keep 1- set-bit
     ] with-random ;
 
 : interval-comparison ( ? str -- str )
     "from" = " >" " <" ? swap [ "= " append ] when ;
 
-: fp-infinity? ( float -- ? )
-    dup float? [
-        double>bits -52 shift 11 2^ 1- [ bitand ] keep =
-    ] [
-        drop f
-    ] if ;
-
 : (infinite-interval?) ( interval -- ?1 ?2 )
     [ from>> ] [ to>> ] bi
     [ first fp-infinity? ] bi@ ;
@@ -99,16 +122,15 @@ M: string where ( spec obj -- ) object-where ;
     ] with filter ;
 
 : where-clause ( tuple specs -- )
-    dupd filter-slots
-    dup empty? [
-        2drop
+    dupd filter-slots [
+        drop
     ] [
         " where " 0% [
             " and " 0%
         ] [
             2dup slot-name>> swap get-slot-named where
         ] interleave drop
-    ] if ;
+    ] if-empty ;
 
 M: db <delete-tuples-statement> ( tuple table -- sql )
     [
@@ -128,33 +150,61 @@ M: db <select-by-slots-statement> ( tuple class -- statement )
 
 : do-group ( tuple groups -- )
     [
-        ", " join " group by " prepend append
+        ", " join " group by " swap 3append
     ] curry change-sql drop ;
 
 : do-order ( tuple order -- )
     [
-        ", " join " order by " prepend append
+        ", " join " order by " swap 3append
     ] curry change-sql drop ;
 
 : do-offset ( tuple n -- )
     [
-        number>string " offset " prepend append
+        number>string " offset " swap 3append
     ] curry change-sql drop ;
 
 : do-limit ( tuple n -- )
     [
-        number>string " limit " prepend append
+        number>string " limit " swap 3append
     ] curry change-sql drop ;
 
-: make-advanced-statement ( tuple advanced -- tuple' )
+: make-query ( tuple query -- tuple' )
     dupd
     {
-        [ group>> [ do-group ] [ drop ] if* ]
-        [ order>> [ do-order ] [ drop ] if* ]
+        [ group>> [ drop ] [ do-group ] if-empty ]
+        [ order>> [ drop ] [ do-order ] if-empty ]
         [ limit>> [ do-limit ] [ drop ] if* ]
         [ offset>> [ do-offset ] [ drop ] if* ]
     } 2cleave ;
 
-M: db <advanced-select-statement> ( tuple class group order limit offset -- tuple )
-    advanced-statement boa
-    [ <select-by-slots-statement> ] dip make-advanced-statement ;
+M: db <query> ( tuple class query -- tuple )
+    [ <select-by-slots-statement> ] dip make-query ;
+
+! select ID, NAME, SCORE from EXAM limit 1 offset 3
+
+: select-tuples* ( tuple -- statement )
+    dup
+    [
+        select 0,
+        dup class db-columns [ ", " 0, ]
+        [ dup column-name>> 0, 2, ] interleave
+        from 0,
+        class name>> 0,
+    ] { { } { } { } } nmake
+    >r >r parse-sql 4drop r> r>
+    <simple-statement> maybe-make-retryable do-select ;
+
+M: db <count-statement> ( tuple class groups -- statement )
+    \ query new
+        swap >>group
+    [ [ "select count(*) from " 0% 0% where-clause ] query-make ]
+    dip make-query ;
+
+: create-index ( index-name table-name columns -- )
+    [
+        >r >r "create index " % % r> " on " % % r> "(" %
+        "," join % ")" %
+    ] "" make sql-command ;
+
+: drop-index ( index-name -- )
+    [ "drop index " % % ] "" make sql-command ;
diff --git a/extra/db/sql/sql-tests.factor b/basis/db/sql/sql-tests.factor
similarity index 100%
rename from extra/db/sql/sql-tests.factor
rename to basis/db/sql/sql-tests.factor
diff --git a/basis/db/sql/sql.factor b/basis/db/sql/sql.factor
new file mode 100755
index 0000000000..ba0673ae24
--- /dev/null
+++ b/basis/db/sql/sql.factor
@@ -0,0 +1,172 @@
+USING: kernel parser quotations classes.tuple words math.order
+nmake namespaces sequences arrays combinators
+prettyprint strings math.parser math symbols db ;
+IN: db.sql
+
+SYMBOLS: insert update delete select distinct columns from as
+where group-by having order-by limit offset is-null desc all
+any count avg table values ;
+
+: input-spec, ( obj -- ) 1, ;
+: output-spec, ( obj -- ) 2, ;
+: input, ( obj -- ) 3, ;
+: output, ( obj -- ) 4, ;
+
+DEFER: sql%
+
+: (sql-interleave) ( seq sep -- )
+    [ sql% ] curry [ sql% ] interleave ;
+
+: sql-interleave ( seq str sep -- )
+    swap sql% (sql-interleave) ;
+
+: sql-function, ( seq function -- )
+    sql% "(" sql% unclip sql% ")" sql% [ sql% ] each ;
+
+: sql-where, ( seq -- )
+    [
+        [ second 0, ]
+        [ first 0, ]
+        [ third 1, \ ? 0, ] tri
+    ] each ;
+
+HOOK: sql-create db ( object -- )
+M: db sql-create ( object -- )
+    drop
+    "create table" sql% ;
+
+HOOK: sql-drop db ( object -- )
+M: db sql-drop ( object -- )
+    drop
+    "drop table" sql% ;
+
+HOOK: sql-insert db ( object -- )
+M: db sql-insert ( object -- )
+    drop
+    "insert into" sql% ;
+
+HOOK: sql-update db ( object -- )
+M: db sql-update ( object -- )
+    drop
+    "update" sql% ;
+
+HOOK: sql-delete db ( object -- )
+M: db sql-delete ( object -- )
+    drop
+    "delete" sql% ;
+
+HOOK: sql-select db ( object -- )
+M: db sql-select ( object -- )
+    "select" sql% "," (sql-interleave) ;
+
+HOOK: sql-columns db ( object -- )
+M: db sql-columns ( object -- )
+    "," (sql-interleave) ;
+
+HOOK: sql-from db ( object -- )
+M: db sql-from ( object -- )
+    "from" "," sql-interleave ;
+
+HOOK: sql-where db ( object -- )
+M: db sql-where ( object -- )
+    "where" 0, sql-where, ;
+
+HOOK: sql-group-by db ( object -- )
+M: db sql-group-by ( object -- )
+    "group by" "," sql-interleave ;
+
+HOOK: sql-having db ( object -- )
+M: db sql-having ( object -- )
+    "having" "," sql-interleave ;
+
+HOOK: sql-order-by db ( object -- )
+M: db sql-order-by ( object -- )
+    "order by" "," sql-interleave ;
+
+HOOK: sql-offset db ( object -- )
+M: db sql-offset ( object -- )
+    "offset" sql% sql% ;
+
+HOOK: sql-limit db ( object -- )
+M: db sql-limit ( object -- )
+    "limit" sql% sql% ;
+
+! GENERIC: sql-subselect db ( object -- )
+! M: db sql-subselectselect ( object -- )
+    ! "(select" sql% sql% ")" sql% ;
+
+HOOK: sql-table db ( object -- )
+M: db sql-table ( object -- )
+    sql% ;
+
+HOOK: sql-set db ( object -- )
+M: db sql-set ( object -- )
+    "set" "," sql-interleave ;
+
+HOOK: sql-values db ( object -- )
+M: db sql-values ( object -- )
+    "values(" sql% "," (sql-interleave) ")" sql% ;
+
+HOOK: sql-count db ( object -- )
+M: db sql-count ( object -- )
+    "count" sql-function, ;
+
+HOOK: sql-sum db ( object -- )
+M: db sql-sum ( object -- )
+    "sum" sql-function, ;
+
+HOOK: sql-avg db ( object -- )
+M: db sql-avg ( object -- )
+    "avg" sql-function, ;
+
+HOOK: sql-min db ( object -- )
+M: db sql-min ( object -- )
+    "min" sql-function, ;
+
+HOOK: sql-max db ( object -- )
+M: db sql-max ( object -- )
+    "max" sql-function, ;
+
+: sql-array% ( array -- )
+    unclip
+    {
+        { \ create [ sql-create ] }
+        { \ drop [ sql-drop ] }
+        { \ insert [ sql-insert ] }
+        { \ update [ sql-update ] }
+        { \ delete [ sql-delete ] }
+        { \ select [ sql-select ] }
+        { \ columns [ sql-columns ] }
+        { \ from [ sql-from ] }
+        { \ where [ sql-where ] }
+        { \ group-by [ sql-group-by ] }
+        { \ having [ sql-having ] }
+        { \ order-by [ sql-order-by ] }
+        { \ offset [ sql-offset ] }
+        { \ limit [ sql-limit ] }
+        { \ table [ sql-table ] }
+        { \ set [ sql-set ] }
+        { \ values [ sql-values ] }
+        { \ count [ sql-count ] }
+        { \ sum [ sql-sum ] }
+        { \ avg [ sql-avg ] }
+        { \ min [ sql-min ] }
+        { \ max [ sql-max ] }
+        [ sql% [ sql% ] each ]
+    } case ;
+
+ERROR: no-sql-match ;
+: sql% ( obj -- )
+    {
+        { [ dup string? ] [ 0, ] }
+        { [ dup array? ] [ sql-array% ] }
+        { [ dup number? ] [ number>string sql% ] }
+        { [ dup symbol? ] [ unparse sql% ] }
+        { [ dup word? ] [ unparse sql% ] }
+        { [ dup quotation? ] [ call ] }
+        [ no-sql-match ]
+    } cond ;
+
+: parse-sql ( obj -- sql in-spec out-spec in out )
+    [ [ sql% ] each ] { { } { } { } } nmake
+    [ " " join ] 2dip ;
diff --git a/extra/db/sqlite/authors.txt b/basis/db/sqlite/authors.txt
similarity index 100%
rename from extra/db/sqlite/authors.txt
rename to basis/db/sqlite/authors.txt
diff --git a/extra/db/sqlite/ffi/ffi.factor b/basis/db/sqlite/ffi/ffi.factor
similarity index 98%
rename from extra/db/sqlite/ffi/ffi.factor
rename to basis/db/sqlite/ffi/ffi.factor
index b443f53e78..9f033a1d3c 100755
--- a/extra/db/sqlite/ffi/ffi.factor
+++ b/basis/db/sqlite/ffi/ffi.factor
@@ -118,6 +118,7 @@ FUNCTION: int sqlite3_bind_blob ( sqlite3_stmt* pStmt, int index, void* ptr, int
 FUNCTION: int sqlite3_bind_double ( sqlite3_stmt* pStmt, int index, double x ) ;
 FUNCTION: int sqlite3_bind_int ( sqlite3_stmt* pStmt, int index, int n ) ;
 FUNCTION: int sqlite3_bind_int64 ( sqlite3_stmt* pStmt, int index, sqlite3_int64 n ) ;
+! Bind the same function as above, but for unsigned 64bit integers
 : sqlite3-bind-uint64 ( pStmt index in64 -- int )
     "int" "sqlite" "sqlite3_bind_int64"
     { "sqlite3_stmt*" "int" "sqlite3_uint64" } alien-invoke ;
@@ -131,6 +132,7 @@ FUNCTION: int sqlite3_column_bytes ( sqlite3_stmt* pStmt, int col ) ;
 FUNCTION: char* sqlite3_column_decltype ( sqlite3_stmt* pStmt, int col ) ;
 FUNCTION: int sqlite3_column_int ( sqlite3_stmt* pStmt, int col ) ;
 FUNCTION: sqlite3_int64 sqlite3_column_int64 ( sqlite3_stmt* pStmt, int col ) ;
+! Bind the same function as above, but for unsigned 64bit integers
 : sqlite3-column-uint64 ( pStmt col -- uint64 )
     "sqlite3_uint64" "sqlite" "sqlite3_column_int64"
     { "sqlite3_stmt*" "int" } alien-invoke ;
diff --git a/extra/db/sqlite/lib/lib.factor b/basis/db/sqlite/lib/lib.factor
similarity index 94%
rename from extra/db/sqlite/lib/lib.factor
rename to basis/db/sqlite/lib/lib.factor
index b652e8fed7..03f424e8d4 100755
--- a/extra/db/sqlite/lib/lib.factor
+++ b/basis/db/sqlite/lib/lib.factor
@@ -4,7 +4,8 @@ USING: alien.c-types arrays assocs kernel math math.parser
 namespaces sequences db.sqlite.ffi db combinators
 continuations db.types calendar.format serialize
 io.streams.byte-array byte-arrays io.encodings.binary
-io.backend db.errors ;
+io.backend db.errors present urls io.encodings.utf8
+io.encodings.string accessors ;
 IN: db.sqlite.lib
 
 ERROR: sqlite-error < db-error n string ;
@@ -15,7 +16,7 @@ ERROR: sqlite-sql-error < sql-error n string ;
 
 : sqlite-statement-error ( -- * )
     SQLITE_ERROR
-    db get db-handle sqlite3_errmsg sqlite-sql-error ;
+    db get handle>> sqlite3_errmsg sqlite-sql-error ;
 
 : sqlite-check-result ( n -- )
     {
@@ -33,7 +34,7 @@ ERROR: sqlite-sql-error < sql-error n string ;
     sqlite3_close sqlite-check-result ;
 
 : sqlite-prepare ( db sql -- handle )
-    dup length "void*" <c-object> "void*" <c-object>
+    utf8 encode dup length "void*" <c-object> "void*" <c-object>
     [ sqlite3_prepare_v2 sqlite-check-result ] 2keep
     drop *void* ;
 
@@ -44,7 +45,7 @@ ERROR: sqlite-sql-error < sql-error n string ;
     >r dupd sqlite-bind-parameter-index r> ;
 
 : sqlite-bind-text ( handle index text -- )
-    dup length SQLITE_TRANSIENT
+    utf8 encode dup length SQLITE_TRANSIENT
     sqlite3_bind_text sqlite-check-result ;
 
 : sqlite-bind-int ( handle i n -- )
@@ -107,6 +108,7 @@ ERROR: sqlite-sql-error < sql-error n string ;
             object>bytes
             sqlite-bind-blob-by-name
         ] }
+        { URL [ present sqlite-bind-text-by-name ] }
         { +db-assigned-id+ [ sqlite-bind-int-by-name ] }
         { +random-id+ [ sqlite-bind-int64-by-name ] }
         { NULL [ sqlite-bind-null-by-name ] }
@@ -147,6 +149,7 @@ ERROR: sqlite-sql-error < sql-error n string ;
         { TIMESTAMP [ sqlite3_column_text dup [ ymdhms>timestamp ] when ] }
         { DATETIME [ sqlite3_column_text dup [ ymdhms>timestamp ] when ] }
         { BLOB [ sqlite-column-blob ] }
+        { URL [ sqlite3_column_text dup [ >url ] when ] }
         { FACTOR-BLOB [
             sqlite-column-blob
             dup [ bytes>object ] when
diff --git a/extra/db/sqlite/sqlite-tests.factor b/basis/db/sqlite/sqlite-tests.factor
similarity index 99%
rename from extra/db/sqlite/sqlite-tests.factor
rename to basis/db/sqlite/sqlite-tests.factor
index b30cb4ba80..67eac2702b 100755
--- a/extra/db/sqlite/sqlite-tests.factor
+++ b/basis/db/sqlite/sqlite-tests.factor
@@ -57,8 +57,7 @@ IN: db.sqlite.tests
     ] with-db
 ] unit-test
 
-[
-] [
+[ ] [
     test.db [
         [
             "insert into person(name, country) values('Jose', 'Mexico')"
diff --git a/extra/db/sqlite/sqlite.factor b/basis/db/sqlite/sqlite.factor
similarity index 86%
rename from extra/db/sqlite/sqlite.factor
rename to basis/db/sqlite/sqlite.factor
index cc4e4d116a..1eb9b566d3 100755
--- a/extra/db/sqlite/sqlite.factor
+++ b/basis/db/sqlite/sqlite.factor
@@ -1,13 +1,11 @@
 ! Copyright (C) 2005, 2008 Chris Double, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien arrays assocs classes compiler db
-hashtables io.files kernel math math.parser namespaces
-prettyprint sequences strings classes.tuple alien.c-types
-continuations db.sqlite.lib db.sqlite.ffi db.tuples
-words combinators.lib db.types combinators math.intervals
-io namespaces.lib accessors vectors math.ranges random
-math.bitfields.lib db.queries destructors ;
-USE: tools.walker
+USING: alien arrays assocs classes compiler db hashtables
+io.files kernel math math.parser namespaces prettyprint
+sequences strings classes.tuple alien.c-types continuations
+db.sqlite.lib db.sqlite.ffi db.tuples words db.types combinators
+math.intervals io nmake accessors vectors math.ranges random
+math.bitwise db.queries destructors ;
 IN: db.sqlite
 
 TUPLE: sqlite-db < db path ;
@@ -19,7 +17,7 @@ M: sqlite-db db-open ( db -- db )
     dup path>> sqlite-open >>handle ;
 
 M: sqlite-db db-close ( handle -- ) sqlite-close ;
-M: sqlite-db dispose ( db -- ) dispose-db ;
+M: sqlite-db dispose ( db -- ) db-dispose ;
 
 TUPLE: sqlite-statement < statement ;
 
@@ -29,7 +27,7 @@ M: sqlite-db <simple-statement> ( str in out -- obj )
     <prepared-statement> ;
 
 M: sqlite-db <prepared-statement> ( str in out -- obj )
-    sqlite-statement construct-statement ;
+    sqlite-statement new-statement ;
 
 : sqlite-maybe-prepare ( statement -- statement )
     dup handle>> [
@@ -44,20 +42,17 @@ M: sqlite-statement dispose ( statement -- )
 M: sqlite-result-set dispose ( result-set -- )
     f >>handle drop ;
 
-: reset-statement ( statement -- )
-    sqlite-maybe-prepare handle>> sqlite-reset ;
-
 : reset-bindings ( statement -- )
     sqlite-maybe-prepare
     handle>> [ sqlite3_reset drop ] [ sqlite3_clear_bindings drop ] bi ;
 
 M: sqlite-statement low-level-bind ( statement -- )
-    [ statement-bind-params ] [ statement-handle ] bi
-    swap [ [ key>> ] [ value>> ] [ type>> ] tri sqlite-bind-type ] with each ;
+    [ bind-params>> ] [ handle>> ] bi
+    [ swap [ key>> ] [ value>> ] [ type>> ] tri sqlite-bind-type ] curry each ;
 
 M: sqlite-statement bind-statement* ( statement -- )
     sqlite-maybe-prepare
-    dup statement-bound? [ dup reset-bindings ] when
+    dup bound?>> [ dup reset-bindings ] when
     low-level-bind ;
 
 GENERIC: sqlite-bind-conversion ( tuple obj -- array )
@@ -90,7 +85,7 @@ M: sqlite-statement bind-tuple ( tuple statement -- )
     ] keep bind-statement ;
 
 : last-insert-id ( -- id )
-    db get db-handle sqlite3_last_insert_rowid
+    db get handle>> sqlite3_last_insert_rowid
     dup zero? [ "last-id failed" throw ] when ;
 
 M: sqlite-db insert-tuple* ( tuple statement -- )
@@ -114,7 +109,7 @@ M: sqlite-result-set more-rows? ( result-set -- ? )
 
 M: sqlite-statement query-results ( query -- result-set )
     sqlite-maybe-prepare
-    dup handle>> sqlite-result-set construct-result-set
+    dup handle>> sqlite-result-set new-result-set
     dup advance-row ;
 
 M: sqlite-db create-sql-statement ( class -- statement )
@@ -182,6 +177,7 @@ M: sqlite-db persistent-table ( -- assoc )
         { DOUBLE { "real" "real" } }
         { BLOB { "blob" "blob" } }
         { FACTOR-BLOB { "blob" "blob" } }
+        { URL { "text" "text" } }
         { +autoincrement+ { f f "autoincrement" } }
         { +unique+ { f f "unique" } }
         { +default+ { f f "default" } }
diff --git a/extra/db/sqlite/test.txt b/basis/db/sqlite/test.txt
similarity index 100%
rename from extra/db/sqlite/test.txt
rename to basis/db/sqlite/test.txt
diff --git a/extra/db/summary.txt b/basis/db/summary.txt
similarity index 100%
rename from extra/db/summary.txt
rename to basis/db/summary.txt
diff --git a/extra/db/tags.txt b/basis/db/tags.txt
similarity index 100%
rename from extra/db/tags.txt
rename to basis/db/tags.txt
diff --git a/basis/db/tuples/tuples-docs.factor b/basis/db/tuples/tuples-docs.factor
new file mode 100644
index 0000000000..ed605da25f
--- /dev/null
+++ b/basis/db/tuples/tuples-docs.factor
@@ -0,0 +1,191 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: classes help.markup help.syntax io.streams.string kernel
+quotations sequences strings multiline math ;
+IN: db.tuples
+
+HELP: define-persistent
+{ $values
+     { "class" class } { "table" string } { "columns" "an array of slot specifiers" } }
+{ $description "Defines a relation from a Factor " { $snippet "tuple class" } " to a SQL database table name. The format for the slot specifiers is as follows:"
+{ $list
+    { "a slot name from the " { $snippet "tuple class" } }
+    { "the name of a database column that maps to the slot" }        { "a database type (see " { $link "db.types" } ")" }
+} } ;
+
+HELP: create-table
+{ $values
+     { "class" class } }
+{ $description "Creates a SQL table from a mapping defined by " { $link define-persistent } ". If the table already exists, the database will likely throw an error." } ;
+
+HELP: ensure-table
+{ $values
+     { "class" class } }
+{ $description "Creates a SQL table from a mapping defined by " { $link define-persistent } ". If the table already exists, the error is silently ignored." } ;
+
+HELP: ensure-tables
+{ $values
+     { "classes" null } }
+{ $description "Creates a SQL table from a mapping defined by " { $link define-persistent } ". If a table already exists, the error is silently ignored." } ;
+
+HELP: recreate-table
+{ $values
+     { "class" class } }
+{ $description "Drops an existing table and re-creates it from a mapping defined by " { $link define-persistent } ". If the table does not exist the error is silently ignored." }
+{ $warning { $emphasis "THIS WORD WILL DELETE YOUR DATA." } $nl
+" Use " { $link ensure-table } " unless you want to delete the data in this table." } ;
+
+{ create-table ensure-table ensure-tables recreate-table } related-words
+
+HELP: drop-table
+{ $values
+     { "class" class } }
+{ $description "Drops an existing table which deletes all of the data. The database will probably throw an error if the table does not exist." }
+{ $warning { $emphasis "THIS WORD WILL DELETE YOUR DATA." } } ;
+
+HELP: insert-tuple
+{ $values
+     { "tuple" tuple } }
+{ $description "Inserts a tuple into a database if a relation has been defined with " { $link define-persistent } ". If a mapping states that the database assigns a primary key to the tuple, this value will be set after this word runs." }
+{ $notes "Objects should only be inserted into a database once per object. To store the object after the initial insert, call " { $link update-tuple } "." } ;
+
+HELP: update-tuple
+{ $values
+     { "tuple" tuple } }
+{ $description "Updates a tuple that has already been inserted into a database. The tuple must have a primary key that has been set by " { $link insert-tuple } " or that is user-defined." } ;
+
+HELP: delete-tuples
+{ $values
+     { "tuple" tuple } }
+{ $description "Uses the " { $snippet "tuple" } " as an exemplar object and deletes any objects that have the same slots set. If a slot is not " { $link f } ", then it is used to generate a SQL statement that deletes tuples." }
+{ $warning "This word will delete your data." } ;
+
+{ insert-tuple update-tuple delete-tuples } related-words
+
+HELP: select-tuple
+{ $values
+     { "tuple" tuple }
+     { "tuple/f" "a tuple or f" } }
+{ $description "A SQL query is constructed from the slots of the exemplar tuple that are not " { $link f } ". Returns a single tuple from the database if it matches the query constructed from the exemplar tuple." } ;
+
+HELP: select-tuples
+{ $values
+     { "tuple" tuple }
+     { "tuples" "an array of tuples" } }
+{ $description "A SQL query is constructed from the slots of the exemplar tuple that are not " { $link f } ". Returns a multiple tuples from the database that match the query constructed from the exemplar tuple." } ;
+
+HELP: count-tuples
+{ $values
+     { "tuple" tuple } { "groups" "an array of slots to group by" }
+     { "n" integer } }
+{ $description "" } ;
+
+HELP: query
+{ $values
+     { "tuple" tuple } { "query" query }
+     { "tuples" "a sequence of tuples" } }
+{ $description "Allows for queries with group by, order by, limit, and offset clauses.  " } ;
+
+{ select-tuple select-tuples count-tuples query } related-words
+
+ARTICLE: "db-tuples" "High-level tuple/database integration"
+"Start with a tutorial:"
+{ $subsection "db-tuples-tutorial" }
+"Useful words:"
+{ $subsection "db-tuples-words" }
+
+;
+
+ARTICLE: "db-tuples-words" "High-level tuple/database words"
+"Making tuples work with a database:"
+{ $subsection define-persistent }
+"Creating tables:"
+{ $subsection create-table }
+{ $subsection ensure-table }
+{ $subsection ensure-tables }
+{ $subsection recreate-table }
+"Dropping tables:"
+{ $subsection drop-table }
+"Inserting a tuple:"
+{ $subsection insert-tuple }
+"Updating a tuple:"
+{ $subsection update-tuple }
+"Deleting tuples:"
+{ $subsection delete-tuples }
+"Querying tuples:"
+{ $subsection select-tuple }
+{ $subsection select-tuples }
+{ $subsection count-tuples }
+"Advanced querying of tuples:"
+{ $subsection query } ;
+
+
+ARTICLE: "db-tuples-protocol" "High-level tuple/database protocol"
+;
+
+ARTICLE: "db-tuples-tutorial" "Tuple database tutorial"
+"Let's make a tuple and store it in a database. To follow along, click on each code example and run it in the listener.  If you forget to run an example, just start at the top and run them all again in order." $nl
+"We're going to store books in this tutorial."
+{ $code "TUPLE: book id title author date-published edition cover-price condition ;" }
+"The title, author, and publisher should be strings; the date-published a timestamp; the edition an integer; the cover-price a float. These are the Factor types for which we will need to look up the corresponding " { $link "db.types" } ". " $nl
+"To actually bind the tuple slots to the database types, we'll use " { $link define-persistent } "."
+{ $code
+<" USING: db.tuples db.types ;
+book "BOOK"
+{
+    { "id" "ID" +db-assigned-id+ }
+    { "title" "TITLE" VARCHAR }
+    { "author" "AUTHOR" VARCHAR }
+    { "date-published" "DATE_PUBLISHED" TIMESTAMP }
+    { "edition" "EDITION" INTEGER }
+    { "cover-price" "COVER_PRICE" DOUBLE }
+    { "condition" "CONDITION" VARCHAR }
+} define-persistent "> }
+"That's all we'll have to do with the database for this tutorial. Now let's make a book."
+{ $code <" USING: calendar namespaces ;
+T{ book
+    { title "Factor for Sheeple" }
+    { author "Mister Stacky Pants" }
+    { date-published T{ timestamp { year 2009 } { month 3 } { day 3 } } }
+    { edition 1 }
+    { cover-price 13.37 }
+} book set
+"> }
+"Now we've created a book. Let's save it to the database."
+{ $code <" USING: db db.sqlite fry io.files ;
+: with-book-tutorial ( quot -- )
+     '[ "book-tutorial.db" temp-file sqlite-db , with-db ] call ;
+
+[
+    book recreate-table
+    book get insert-tuple
+] with-book-tutorial
+"> }
+"Is it really there?"
+{ $code <" [
+    T{ book { title "Factor for Sheeple" } } select-tuples .
+] with-book-tutorial "> }
+"Oops, we spilled some orange juice on the book cover."
+{ $code <" book get "Small orange juice stain on cover" >>condition "> }
+"Now let's save the modified book."
+{ $code <" [
+    book get update-tuple
+] with-book-tutorial "> }
+"And select it again.  You can query the database by any field -- just set it in the exemplar tuple you pass to " { $link select-tuples } "."
+{ $code <" [
+    T{ book { title "Factor for Sheeple" } } select-tuples
+] with-book-tutorial "> }
+"Let's drop the table because we're done."
+{ $code <" [
+    book drop-table
+] with-book-tutorial "> }
+"To summarize, the steps for using Factor's tuple database are:"
+{ $list
+    "Make a new tuple to represent your data"
+    { "Map the Factor types to the database types with " { $link define-persistent } }
+    { "Make a " { $link "db-custom-database-combinators" } " to open your database and run a " { $snippet "quotation" } }
+    { "Create a table with " { $link create-table } ", " { $link ensure-table } ", or " { $link recreate-table } }
+    { "Start making and storing objects with " { $link insert-tuple } ", " { $link update-tuple } ", " { $link delete-tuples } ", and " { $link select-tuples } }
+} ;
+
+ABOUT: "db-tuples"
diff --git a/extra/db/tuples/tuples-tests.factor b/basis/db/tuples/tuples-tests.factor
similarity index 80%
rename from extra/db/tuples/tuples-tests.factor
rename to basis/db/tuples/tuples-tests.factor
index f9a597e814..3b04454995 100755
--- a/extra/db/tuples/tuples-tests.factor
+++ b/basis/db/tuples/tuples-tests.factor
@@ -3,27 +3,28 @@
 USING: io.files kernel tools.test db db.tuples classes
 db.types continuations namespaces math math.ranges
 prettyprint calendar sequences db.sqlite math.intervals
-db.postgresql accessors random math.bitfields.lib
-math.ranges strings sequences.lib ;
+db.postgresql accessors random math.bitwise
+math.ranges strings urls fry ;
 IN: db.tuples.tests
 
 TUPLE: person the-id the-name the-number the-real
-ts date time blob factor-blob ;
+ts date time blob factor-blob url ;
 
-: <person> ( name age real ts date time blob factor-blob -- person )
-    {
-        set-person-the-name
-        set-person-the-number
-        set-person-the-real
-        set-person-ts
-        set-person-date
-        set-person-time
-        set-person-blob
-        set-person-factor-blob
-    } person construct ;
+: <person> ( name age real ts date time blob factor-blob url -- person )
+    person new
+        swap >>url
+        swap >>factor-blob
+        swap >>blob
+        swap >>time
+        swap >>date
+        swap >>ts
+        swap >>the-real
+        swap >>the-number
+        swap >>the-name ;
 
-: <user-assigned-person> ( id name age real ts date time blob factor-blob -- person )
-    <person> [ set-person-the-id ] keep ;
+: <user-assigned-person> ( id name age real ts date time blob factor-blob url -- person )
+    <person>
+        swap >>the-id ;
 
 SYMBOL: person1
 SYMBOL: person2
@@ -40,9 +41,9 @@ SYMBOL: person4
     
     [ ] [ person1 get insert-tuple ] unit-test
 
-    [ 1 ] [ person1 get person-the-id ] unit-test
+    [ 1 ] [ person1 get the-id>> ] unit-test
 
-    [ ] [ 200 person1 get set-person-the-number ] unit-test
+    [ ] [ person1 get 200 >>the-number drop ] unit-test
 
     [ ] [ person1 get update-tuple ] unit-test
 
@@ -83,8 +84,8 @@ SYMBOL: person4
             10
             3.14
             T{ timestamp f 2008 3 5 16 24 11 T{ duration f 0 0 0 0 0 0 } }
-            T{ timestamp f 2008 11 22 f f f T{ duration f 0 0 0 0 0 0 } }
-            T{ timestamp f f f f 12 34 56 T{ duration f 0 0 0 0 0 0 } }
+            T{ timestamp f 2008 11 22 0 0 0 T{ duration f 0 0 0 0 0 0 } }
+            T{ timestamp f 0 0 0 12 34 56 T{ duration f 0 0 0 0 0 0 } }
             B{ 115 116 111 114 101 105 110 97 98 108 111 98 }
         }
     ] [ T{ person f 3 } select-tuple ] unit-test
@@ -99,10 +100,11 @@ SYMBOL: person4
             10
             3.14
             T{ timestamp f 2008 3 5 16 24 11 T{ duration f 0 0 0 0 0 0 } }
-            T{ timestamp f 2008 11 22 f f f T{ duration f 0 0 0 0 0 0 } }
-            T{ timestamp f f f f 12 34 56 T{ duration f 0 0 0 0 0 0 } }
+            T{ timestamp f 2008 11 22 0 0 0 T{ duration f 0 0 0 0 0 0 } }
+            T{ timestamp f 0 0 0 12 34 56 T{ duration f 0 0 0 0 0 0 } }
             f
             H{ { 1 2 } { 3 4 } { 5 "lol" } }
+            URL" http://www.google.com/search?hl=en&q=trailer+park+boys&btnG=Google+Search"
         }
     ] [ T{ person f 4 } select-tuple ] unit-test
 
@@ -120,19 +122,20 @@ SYMBOL: person4
         { "time" "T" TIME }
         { "blob" "B" BLOB }
         { "factor-blob" "FB" FACTOR-BLOB }
+        { "url" "U" URL }
     } define-persistent
-    "billy" 10 3.14 f f f f f <person> person1 set
-    "johnny" 10 3.14 f f f f f <person> person2 set
+    "billy" 10 3.14 f f f f f f <person> person1 set
+    "johnny" 10 3.14 f f f f f f <person> person2 set
     "teddy" 10 3.14
         T{ timestamp f 2008 3 5 16 24 11 T{ duration f 0 0 0 0 0 0 } }
         T{ timestamp f 2008 11 22 0 0 0 T{ duration f 0 0 0 0 0 0 } }
-        T{ timestamp f f f f 12 34 56 T{ duration f 0 0 0 0 0 0 } }
-        B{ 115 116 111 114 101 105 110 97 98 108 111 98 } f <person> person3 set
+        T{ timestamp f 0 0 0 12 34 56 T{ duration f 0 0 0 0 0 0 } }
+        B{ 115 116 111 114 101 105 110 97 98 108 111 98 } f f <person> person3 set
     "eddie" 10 3.14
         T{ timestamp f 2008 3 5 16 24 11 T{ duration f 0 0 0 0 0 0 } }
         T{ timestamp f 2008 11 22 0 0 0 T{ duration f 0 0 0 0 0 0 } }
-        T{ timestamp f f f f 12 34 56 T{ duration f 0 0 0 0 0 0 } }
-        f H{ { 1 2 } { 3 4 } { 5 "lol" } } <person> person4 set ;
+        T{ timestamp f 0 0 0 12 34 56 T{ duration f 0 0 0 0 0 0 } }
+        f H{ { 1 2 } { 3 4 } { 5 "lol" } } URL" http://www.google.com/search?hl=en&q=trailer+park+boys&btnG=Google+Search"  <person> person4 set ;
 
 : user-assigned-person-schema ( -- )
     person "PERSON"
@@ -146,20 +149,21 @@ SYMBOL: person4
         { "time" "T" TIME }
         { "blob" "B" BLOB }
         { "factor-blob" "FB" FACTOR-BLOB }
+        { "url" "U" URL }
     } define-persistent
-    1 "billy" 10 3.14 f f f f f <user-assigned-person> person1 set
-    2 "johnny" 10 3.14 f f f f f <user-assigned-person> person2 set
+    1 "billy" 10 3.14 f f f f f f <user-assigned-person> person1 set
+    2 "johnny" 10 3.14 f f f f f f <user-assigned-person> person2 set
     3 "teddy" 10 3.14
         T{ timestamp f 2008 3 5 16 24 11 T{ duration f 0 0 0 0 0 0 } }
         T{ timestamp f 2008 11 22 0 0 0 T{ duration f 0 0 0 0 0 0 } }
-        T{ timestamp f f f f 12 34 56 T{ duration f 0 0 0 0 0 0 } }
+        T{ timestamp f 0 0 0 12 34 56 T{ duration f 0 0 0 0 0 0 } }
         B{ 115 116 111 114 101 105 110 97 98 108 111 98 }
-        f <user-assigned-person> person3 set
+        f f <user-assigned-person> person3 set
     4 "eddie" 10 3.14
         T{ timestamp f 2008 3 5 16 24 11 T{ duration f 0 0 0 0 0 0 } }
         T{ timestamp f 2008 11 22 0 0 0 T{ duration f 0 0 0 0 0 0 } }
-        T{ timestamp f f f f 12 34 56 T{ duration f 0 0 0 0 0 0 } }
-        f H{ { 1 2 } { 3 4 } { 5 "lol" } } <user-assigned-person> person4 set ;
+        T{ timestamp f 0 0 0 12 34 56 T{ duration f 0 0 0 0 0 0 } }
+        f H{ { 1 2 } { 3 4 } { 5 "lol" } } URL" http://www.google.com/search?hl=en&q=trailer+park+boys&btnG=Google+Search" <user-assigned-person> person4 set ;
 
 TUPLE: paste n summary author channel mode contents timestamp annotations ;
 TUPLE: annotation n paste-id summary author mode contents ;
@@ -197,10 +201,10 @@ TUPLE: annotation n paste-id summary author mode contents ;
 ! ] with-db
 
 : test-sqlite ( quot -- )
-    >r "tuples-test.db" temp-file sqlite-db r> with-db ;
+    [ ] swap '[ "tuples-test.db" temp-file sqlite-db , with-db ] unit-test ;
 
 : test-postgresql ( quot -- )
-    >r { "localhost" "postgres" "foob" "factor-test" } postgresql-db r> with-db ;
+    [ ] swap '[ { "localhost" "postgres" "foob" "factor-test" } postgresql-db , with-db ] unit-test ;
 
 : test-repeated-insert
     [ ] [ person ensure-table ] unit-test
@@ -227,7 +231,7 @@ TUPLE: exam id name score ;
 
 : random-exam ( -- exam )
         f
-        6 [ CHAR: a CHAR: b [a,b] random ] replicate >string
+        6 [ CHAR: a CHAR: z [a,b] random ] replicate >string
         100 random
     exam boa ;
 
@@ -340,7 +344,9 @@ TUPLE: exam id name score ;
         }
     ] [
         T{ exam } select-tuples
-    ] unit-test ;
+    ] unit-test
+
+    [ 4 ] [ T{ exam } f count-tuples ] unit-test ;
 
 TUPLE: bignum-test id m n o ;
 : <bignum-test> ( m n o -- obj )
@@ -457,6 +463,31 @@ fubbclass "FUBCLASS" { } define-persistent
     [ t ] [ fubbclass new select-tuples [ fubbclass? ] all? ] unit-test ;
 
 [ test-db-inheritance ] test-sqlite
+[ test-db-inheritance ] test-postgresql
+
+
+TUPLE: string-encoding-test id string ;
+
+string-encoding-test "STRING_ENCODING_TEST" {
+    { "id" "ID" +db-assigned-id+ }
+    { "string" "STRING" TEXT }
+} define-persistent
+
+: test-string-encoding ( -- )
+    [ ] [ string-encoding-test ensure-table ] unit-test
+
+    [ ] [
+        string-encoding-test new
+            "\u{copyright-sign}\u{bengali-letter-cha}" >>string
+        [ insert-tuple ] [ id>> "id" set ] bi
+    ] unit-test
+    
+    [ "\u{copyright-sign}\u{bengali-letter-cha}" ] [
+        string-encoding-test new "id" get >>id select-tuple string>>
+    ] unit-test ;
+
+[ test-string-encoding ] test-sqlite
+[ test-string-encoding ] test-postgresql
 
 ! Don't comment these out. These words must infer
 \ bind-tuple must-infer
diff --git a/extra/db/tuples/tuples.factor b/basis/db/tuples/tuples.factor
similarity index 61%
rename from extra/db/tuples/tuples.factor
rename to basis/db/tuples/tuples.factor
index bac141d6d2..3c3bae3adc 100755
--- a/extra/db/tuples/tuples.factor
+++ b/basis/db/tuples/tuples.factor
@@ -3,7 +3,7 @@
 USING: arrays assocs classes db kernel namespaces
 classes.tuple words sequences slots math accessors
 math.parser io prettyprint db.types continuations
-destructors mirrors sequences.lib combinators.lib ;
+destructors mirrors ;
 IN: db.tuples
 
 : define-persistent ( class table columns -- )
@@ -15,13 +15,13 @@ IN: db.tuples
 
 ERROR: not-persistent class ;
 
-: db-table ( class -- obj )
+: db-table ( class -- object )
     dup "db-table" word-prop [ ] [ not-persistent ] ?if ;
 
-: db-columns ( class -- obj )
+: db-columns ( class -- object )
     superclasses [ "db-columns" word-prop ] map concat ;
 
-: db-relations ( class -- obj )
+: db-relations ( class -- object )
     "db-relations" word-prop ;
 
 : set-primary-key ( key tuple -- )
@@ -34,52 +34,26 @@ SYMBOL: sql-counter
     sql-counter [ inc ] [ get ] bi number>string ;
 
 ! returns a sequence of prepared-statements
-HOOK: create-sql-statement db ( class -- obj )
-HOOK: drop-sql-statement db ( class -- obj )
+HOOK: create-sql-statement db ( class -- object )
+HOOK: drop-sql-statement db ( class -- object )
 
-HOOK: <insert-db-assigned-statement> db ( class -- obj )
-HOOK: <insert-user-assigned-statement> db ( class -- obj )
-HOOK: <update-tuple-statement> db ( class -- obj )
-HOOK: <delete-tuples-statement> db ( tuple class -- obj )
+HOOK: <insert-db-assigned-statement> db ( class -- object )
+HOOK: <insert-user-assigned-statement> db ( class -- object )
+HOOK: <update-tuple-statement> db ( class -- object )
+HOOK: <delete-tuples-statement> db ( tuple class -- object )
 HOOK: <select-by-slots-statement> db ( tuple class -- tuple )
-TUPLE: advanced-statement group order offset limit ;
-HOOK: <advanced-select-statement> db ( tuple class group order offset limit -- tuple )
+TUPLE: query group order offset limit ;
+HOOK: <query> db ( tuple class query -- statement' )
+HOOK: <count-statement> db ( tuple class groups -- n )
 
 HOOK: insert-tuple* db ( tuple statement -- )
 
-GENERIC: eval-generator ( singleton -- obj )
-SINGLETON: retryable
+GENERIC: eval-generator ( singleton -- object )
 
-: make-retryable ( obj -- obj' )
-    dup sequence? [
-        [ make-retryable ] map
-    ] [
-        retryable >>type
-    ] if ;
-
-: regenerate-params ( statement -- statement )
-    dup
-    [ bind-params>> ] [ in-params>> ] bi
-    [
-        dup generator-bind? [
-            generator-singleton>> eval-generator >>value
-        ] [
-            drop
-        ] if
-    ] 2map >>bind-params ;
-
-M: retryable execute-statement* ( statement type -- )
-    drop
-    [
-        [ query-results dispose t ]
-        [ ]
-        [ regenerate-params bind-statement* f ] cleanup
-    ] curry 10 retry drop ;
-
-: resulting-tuple ( class row out-params -- tuple )
+: resulting-tuple ( exemplar-tuple row out-params -- tuple )
     rot class new [
         [
-            >r slot-name>> r> set-slot-named
+            [ slot-name>> ] dip set-slot-named
         ] curry 2each
     ] keep ;
 
@@ -91,13 +65,10 @@ M: retryable execute-statement* ( statement type -- )
 : query-modify-tuple ( tuple statement -- )
     [ query-results [ sql-row-typed ] with-disposal ] keep
     out-params>> rot [
-        >r slot-name>> r> set-slot-named
+        [ slot-name>> ] dip set-slot-named
     ] curry 2each ;
 
-: sql-props ( class -- columns table )
-    [ db-columns ] [ db-table ] bi ;
-
-: with-disposals ( seq quot -- )
+: with-disposals ( object quotation -- )
     over sequence? [
         [ with-disposal ] curry each
     ] [
@@ -119,14 +90,17 @@ M: retryable execute-statement* ( statement type -- )
 : ensure-table ( class -- )
     [ create-table ] curry ignore-errors ;
 
+: ensure-tables ( classes -- )
+    [ ensure-table ] each ;
+
 : insert-db-assigned-statement ( tuple -- )
     dup class
-    db get db-insert-statements [ <insert-db-assigned-statement> ] cache
+    db get insert-statements>> [ <insert-db-assigned-statement> ] cache
     [ bind-tuple ] 2keep insert-tuple* ;
 
 : insert-user-assigned-statement ( tuple -- )
     dup class
-    db get db-insert-statements [ <insert-user-assigned-statement> ] cache
+    db get insert-statements>> [ <insert-user-assigned-statement> ] cache
     [ bind-tuple ] keep execute-statement ;
 
 : insert-tuple ( tuple -- )
@@ -135,7 +109,7 @@ M: retryable execute-statement* ( statement type -- )
 
 : update-tuple ( tuple -- )
     dup class
-    db get db-update-statements [ <update-tuple-statement> ] cache
+    db get update-statements>> [ <update-tuple-statement> ] cache
     [ bind-tuple ] keep execute-statement ;
 
 : delete-tuples ( tuple -- )
@@ -146,9 +120,22 @@ M: retryable execute-statement* ( statement type -- )
 : do-select ( exemplar-tuple statement -- tuples )
     [ [ bind-tuple ] [ query-tuples ] 2bi ] with-disposal ;
 
+: query ( tuple query -- tuples )
+    [ dup dup class ] dip <query> do-select ;
+
 : select-tuples ( tuple -- tuples )
     dup dup class <select-by-slots-statement> do-select ;
 
 : select-tuple ( tuple -- tuple/f )
-    dup dup class f f f 1 <advanced-select-statement>
-    do-select ?first ;
+    dup dup class \ query new 1 >>limit <query> do-select
+    [ f ] [ first ] if-empty ;
+
+: do-count ( exemplar-tuple statement -- tuples )
+    [
+        [ bind-tuple ] [ nip default-query ] 2bi
+    ] with-disposal ;
+
+: count-tuples ( tuple groups -- n )
+    >r dup dup class r> <count-statement> do-count
+    dup length 1 =
+    [ first first string>number ] [ [ first string>number ] map ] if ;
diff --git a/basis/db/types/types-docs.factor b/basis/db/types/types-docs.factor
new file mode 100644
index 0000000000..9300a68f2e
--- /dev/null
+++ b/basis/db/types/types-docs.factor
@@ -0,0 +1,300 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: classes hashtables help.markup help.syntax io.streams.string kernel sequences strings ;
+IN: db.types
+
+HELP: (lookup-type)
+{ $values
+     { "obj" object }
+     { "string" string } }
+{ $description "" } ;
+
+HELP: +autoincrement+
+{ $description "" } ;
+
+HELP: +db-assigned-id+
+{ $description "The database assigns a primary key to the object.  The primary key is most likely a big integer, but is database-dependent." } ;
+
+HELP: +default+
+{ $description "" } ;
+
+HELP: +foreign-id+
+{ $description "" } ;
+
+HELP: +has-many+
+{ $description "" } ;
+
+HELP: +not-null+
+{ $description "" } ;
+
+HELP: +null+
+{ $description "" } ;
+
+HELP: +primary-key+
+{ $description "" } ;
+
+HELP: +random-id+
+{ $description "Factor chooses a random number and tries to insert the tuple into the database with this number as its primary key.  The default number of retries to find a unique random number is 10, though in practice it will almost certainly succeed on the first try." } ;
+
+HELP: +serial+
+{ $description "" } ;
+
+HELP: +unique+
+{ $description "" } ;
+
+HELP: +user-assigned-id+
+{ $description "The user is responsible for choosing a primary key for tuples inserted with this database type.  Keys must be unique or else the database will throw an error.  Usually it is better to use a " { $link +db-assigned-id+ } "." } ;
+
+HELP: <generator-bind>
+{ $description "" } ;
+
+HELP: <literal-bind>
+{ $description "" } ;
+
+HELP: <low-level-binding>
+{ $description "" } ;
+
+HELP: BIG-INTEGER
+{ $description "A 64-bit integer." } ;
+
+HELP: BLOB
+{ $description "A serialized Factor object.  The database library automatically serializes the object for a SQL insert or update and deserializes it on a tuple query." } ;
+
+HELP: BOOLEAN
+{ $description "Either true or false." } ;
+
+HELP: DATE
+{ $description "A date without a time component." } ;
+
+HELP: DATETIME
+{ $description "A date and a time." } ;
+
+HELP: DOUBLE
+{ $description "Corresponds to Factor's 64bit floating-point numbers." } ;
+
+HELP: FACTOR-BLOB
+{ $description "" } ;
+
+HELP: INTEGER
+{ $description "" } ;
+
+HELP: NULL
+{ $description "" } ;
+
+HELP: REAL
+{ $description "" } ;
+
+HELP: SIGNED-BIG-INTEGER
+{ $description "For portability, if a number is known to be 64bit and signed, then this datatype may be used.  Some databases, like SQLite, cannot store arbitrary bignums as BIGINT types.  If storing arbitrary bignums, use " { $link FACTOR-BLOB } "." } ;
+
+HELP: TEXT
+{ $description "" } ;
+
+HELP: TIME
+{ $description "" } ;
+
+HELP: TIMESTAMP
+{ $description "" } ;
+
+HELP: UNSIGNED-BIG-INTEGER
+{ $description "" } ;
+
+HELP: URL
+{ $description "" } ;
+
+HELP: VARCHAR
+{ $description "" } ;
+
+HELP: assigned-id-spec?
+{ $values
+     { "spec" null }
+     { "?" "a boolean" } }
+{ $description "" } ;
+
+HELP: bind#
+{ $values
+     { "spec" null } { "obj" object } }
+{ $description "" } ;
+
+HELP: bind%
+{ $values
+     { "spec" null } }
+{ $description "" } ;
+
+HELP: compound
+{ $values
+     { "string" string } { "obj" object }
+     { "hash" hashtable } }
+{ $description "" } ;
+
+HELP: db-assigned-id-spec?
+{ $values
+     { "spec" null }
+     { "?" "a boolean" } }
+{ $description "" } ;
+
+HELP: find-primary-key
+{ $values
+     { "specs" null }
+     { "obj" object } }
+{ $description "" } ;
+
+HELP: generator-bind
+{ $description "" } ;
+
+HELP: get-slot-named
+{ $values
+     { "name" null } { "obj" object }
+     { "value" null } }
+{ $description "" } ;
+
+HELP: join-space
+{ $values
+     { "string1" string } { "string2" string }
+     { "new-string" null } }
+{ $description "" } ;
+
+HELP: literal-bind
+{ $description "" } ;
+
+HELP: lookup-create-type
+{ $values
+     { "obj" object }
+     { "string" string } }
+{ $description "" } ;
+
+HELP: lookup-modifier
+{ $values
+     { "obj" object }
+     { "string" string } }
+{ $description "" } ;
+
+HELP: lookup-type
+{ $values
+     { "obj" object }
+     { "string" string } }
+{ $description "" } ;
+
+HELP: low-level-binding
+{ $description "" } ;
+
+HELP: modifiers
+{ $values
+     { "spec" null }
+     { "string" string } }
+{ $description "" } ;
+
+HELP: no-sql-type
+{ $description "" } ;
+
+HELP: normalize-spec
+{ $values
+     { "spec" null } }
+{ $description "" } ;
+
+HELP: number>string*
+{ $values
+     { "n/string" null }
+     { "string" string } }
+{ $description "" } ;
+
+HELP: offset-of-slot
+{ $values
+     { "string" string } { "obj" object }
+     { "n" null } }
+{ $description "" } ;
+
+HELP: paren
+{ $values
+     { "string" string }
+     { "new-string" null } }
+{ $description "" } ;
+
+HELP: persistent-table
+{ $values
+    
+     { "hash" hashtable } }
+{ $description "" } ;
+
+HELP: primary-key?
+{ $values
+     { "spec" null }
+     { "?" "a boolean" } }
+{ $description "" } ;
+
+HELP: random-id-generator
+{ $description "" } ;
+
+HELP: relation?
+{ $values
+     { "spec" null }
+     { "?" "a boolean" } }
+{ $description "" } ;
+
+HELP: remove-db-assigned-id
+{ $values
+     { "specs" null }
+     { "obj" object } }
+{ $description "" } ;
+
+HELP: remove-id
+{ $values
+     { "specs" null }
+     { "obj" object } }
+{ $description "" } ;
+
+HELP: remove-relations
+{ $values
+     { "specs" null }
+     { "newcolumns" null } }
+{ $description "" } ;
+
+HELP: set-slot-named
+{ $values
+     { "value" null } { "name" null } { "obj" object } }
+{ $description "" } ;
+
+HELP: spec>tuple
+{ $values
+     { "class" class } { "spec" null }
+     { "tuple" null } }
+{ $description "" } ;
+
+HELP: sql-spec
+{ $description "" } ;
+
+HELP: unknown-modifier
+{ $description "" } ;
+
+ARTICLE: "db.types" "Database types"
+"The " { $vocab-link "db.types" } " vocabulary maps Factor types to database types." $nl
+"Primary keys:"
+{ $subsection +db-assigned-id+ }
+{ $subsection +user-assigned-id+ }
+{ $subsection +random-id+ }
+"Null and boolean types:"
+{ $subsection NULL }
+{ $subsection BOOLEAN }
+"Text types:"
+{ $subsection VARCHAR }
+{ $subsection TEXT }
+"Number types:"
+{ $subsection INTEGER }
+{ $subsection BIG-INTEGER }
+{ $subsection SIGNED-BIG-INTEGER }
+{ $subsection UNSIGNED-BIG-INTEGER }
+{ $subsection DOUBLE }
+{ $subsection REAL }
+"Calendar types:"
+{ $subsection DATE }
+{ $subsection DATETIME }
+{ $subsection TIME }
+{ $subsection TIMESTAMP }
+"Arbitrary Factor objects:"
+{ $subsection BLOB }
+{ $subsection FACTOR-BLOB }
+"Factor URLs:"
+{ $subsection URL }
+;
+
+ABOUT: "db.types"
diff --git a/extra/db/types/types.factor b/basis/db/types/types.factor
similarity index 75%
rename from extra/db/types/types.factor
rename to basis/db/types/types.factor
index 03e6b15bdb..24344acbf7 100755
--- a/extra/db/types/types.factor
+++ b/basis/db/types/types.factor
@@ -1,14 +1,14 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays assocs db kernel math math.parser
-sequences continuations sequences.deep sequences.lib
+sequences continuations sequences.deep
 words namespaces slots slots.private classes mirrors
 classes.tuple combinators calendar.format symbols
 classes.singleton accessors quotations random ;
 IN: db.types
 
 HOOK: persistent-table db ( -- hash )
-HOOK: compound db ( str obj -- hash )
+HOOK: compound db ( string obj -- hash )
 
 TUPLE: sql-spec class slot-name column-name type primary-key modifiers ;
 
@@ -30,15 +30,6 @@ UNION: +primary-key+ +db-assigned-id+ +user-assigned-id+ +random-id+ ;
 SYMBOLS: +autoincrement+ +serial+ +unique+ +default+ +null+ +not-null+
 +foreign-id+ +has-many+ ;
 
-: find-random-generator ( seq -- obj )
-    [
-        {
-            random-generator
-            system-random-generator
-            secure-random-generator
-        } member?
-    ] find nip [ system-random-generator ] unless* ;
-
 : primary-key? ( spec -- ? )
     primary-key>> +primary-key+? ;
 
@@ -65,7 +56,7 @@ SYMBOLS: +autoincrement+ +serial+ +unique+ +default+ +null+ +not-null+
 
 SYMBOLS: INTEGER BIG-INTEGER SIGNED-BIG-INTEGER UNSIGNED-BIG-INTEGER
 DOUBLE REAL BOOLEAN TEXT VARCHAR DATE TIME DATETIME TIMESTAMP BLOB
-FACTOR-BLOB NULL ;
+FACTOR-BLOB NULL URL ;
 
 : spec>tuple ( class spec -- tuple )
     3 f pad-right
@@ -78,7 +69,7 @@ FACTOR-BLOB NULL ;
         swap >>class
     dup normalize-spec ;
 
-: number>string* ( n/str -- str )
+: number>string* ( n/string -- string )
     dup number? [ number>string ] when ;
 
 : remove-db-assigned-id ( specs -- obj )
@@ -97,7 +88,7 @@ FACTOR-BLOB NULL ;
 
 ERROR: unknown-modifier ;
 
-: lookup-modifier ( obj -- str )
+: lookup-modifier ( obj -- string )
     {
         { [ dup array? ] [ unclip lookup-modifier swap compound ] }
         [ persistent-table at* [ unknown-modifier ] unless third ]
@@ -105,57 +96,42 @@ ERROR: unknown-modifier ;
 
 ERROR: no-sql-type ;
 
-: (lookup-type) ( obj -- str )
+: (lookup-type) ( obj -- string )
     persistent-table at* [ no-sql-type ] unless ;
 
-: lookup-type ( obj -- str )
+: lookup-type ( obj -- string )
     dup array? [
         unclip (lookup-type) first nip
     ] [
         (lookup-type) first
     ] if ;
 
-: lookup-create-type ( obj -- str )
+: lookup-create-type ( obj -- string )
     dup array? [
         unclip (lookup-type) second swap compound
     ] [
         (lookup-type) second
     ] if ;
 
-: single-quote ( str -- newstr )
-    "'" swap "'" 3append ;
-
-: double-quote ( str -- newstr )
-    "\"" swap "\"" 3append ;
-
-: paren ( str -- newstr )
+: paren ( string -- new-string )
     "(" swap ")" 3append ;
 
-: join-space ( str1 str2 -- newstr )
+: join-space ( string1 string2 -- new-string )
     " " swap 3append ;
 
-: modifiers ( spec -- str )
+: modifiers ( spec -- string )
     modifiers>> [ lookup-modifier ] map " " join
-    dup empty? [ " " prepend ] unless ;
+    [ "" ] [ " " prepend ] if-empty ;
 
 HOOK: bind% db ( spec -- )
 HOOK: bind# db ( spec obj -- )
 
-: offset-of-slot ( str obj -- n )
+: offset-of-slot ( string obj -- n )
     class superclasses [ "slots" word-prop ] map concat
-    slot-named slot-spec-offset ;
+    slot-named offset>> ;
 
 : get-slot-named ( name obj -- value )
     tuck offset-of-slot slot ;
 
 : set-slot-named ( value name obj -- )
     tuck offset-of-slot set-slot ;
-
-: tuple>filled-slots ( tuple -- alist )
-    <mirror> [ nip ] assoc-filter ;
-
-: tuple>params ( specs tuple -- obj )
-    [
-        >r [ type>> ] [ slot-name>> ] bi r>
-        get-slot-named swap
-    ] curry { } map>assoc ;
diff --git a/core/optimizer/pattern-match/authors.txt b/basis/debugger/authors.txt
similarity index 100%
rename from core/optimizer/pattern-match/authors.txt
rename to basis/debugger/authors.txt
diff --git a/core/debugger/debugger-docs.factor b/basis/debugger/debugger-docs.factor
similarity index 87%
rename from core/debugger/debugger-docs.factor
rename to basis/debugger/debugger-docs.factor
index 9dd23c6011..f8897712e7 100755
--- a/core/debugger/debugger-docs.factor
+++ b/basis/debugger/debugger-docs.factor
@@ -1,17 +1,9 @@
 USING: alien arrays generic generic.math help.markup help.syntax
 kernel math memory strings sbufs vectors io io.files classes
-help generic.standard continuations system debugger.private
-io.files.private listener ;
+help generic.standard continuations system io.files.private
+listener ;
 IN: debugger
 
-ARTICLE: "errors-assert" "Assertions"
-"Some words to make assertions easier to enforce:"
-{ $subsection assert }
-{ $subsection assert= }
-"Runtime stack depth checking:"
-{ $subsection depth }
-{ $subsection assert-depth } ;
-
 ARTICLE: "debugger" "The debugger"
 "Caught errors can be logged in human-readable form:"
 { $subsection print-error }
@@ -30,8 +22,6 @@ ARTICLE: "debugger" "The debugger"
 { $subsection :2 }
 { $subsection :3 }
 { $subsection :res }
-"Assertions:"
-{ $subsection "errors-assert" }
 "You can read more about error handling in " { $link "errors" } "." ;
 
 ABOUT: "debugger"
@@ -156,21 +146,3 @@ HELP: memory-error.
 HELP: primitive-error.
 { $error-description "Thrown by the Factor VM if an unsupported primitive word is called." }
 { $notes "This word is only ever thrown on Windows CE, where the " { $link cwd } ", " { $link cd } ", and " { $link os-env } " primitives are unsupported." } ;
-
-HELP: assert
-{ $values { "got" "the obtained value" } { "expect" "the expected value" } }
-{ $description "Throws an " { $link assert } " error." }
-{ $error-description "Thrown when a unit test or other assertion fails." } ;
-
-{ assert assert-depth } related-words
-
-HELP: depth
-{ $values { "n" "a non-negative integer" } }
-{ $description "Outputs the number of elements on the data stack." } ;
-
-HELP: assert-depth
-{ $values { "quot" "a quotation" } }
-{ $description "Runs a quotation. Throws an error if the total number of elements on the stack is not the same before and after the quotation runs." } ;
-
-HELP: init-debugger
-{ $description "Called on startup to set a pair of hooks which allow the " { $link throw } " word to function." } ;
diff --git a/core/debugger/debugger-tests.factor b/basis/debugger/debugger-tests.factor
similarity index 100%
rename from core/debugger/debugger-tests.factor
rename to basis/debugger/debugger-tests.factor
diff --git a/core/debugger/debugger.factor b/basis/debugger/debugger.factor
similarity index 62%
rename from core/debugger/debugger.factor
rename to basis/debugger/debugger.factor
index 17219ba92b..4d01567131 100755
--- a/core/debugger/debugger.factor
+++ b/basis/debugger/debugger.factor
@@ -1,13 +1,15 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions generic hashtables inspector io kernel
-math namespaces prettyprint prettyprint.config sequences assocs
-sequences.private strings io.styles vectors words system
-splitting math.parser classes.tuple continuations
-continuations.private combinators generic.math
-classes.builtin classes compiler.units generic.standard vocabs
-threads threads.private init kernel.private libc io.encodings
-mirrors accessors math.order destructors ;
+USING: slots arrays definitions generic hashtables summary io
+kernel math namespaces prettyprint prettyprint.config sequences
+assocs sequences.private strings io.styles io.files vectors
+words system splitting math.parser classes.tuple continuations
+continuations.private combinators generic.math classes.builtin
+classes compiler.units generic.standard vocabs init
+kernel.private io.encodings accessors math.order
+destructors source-files parser classes.tuple.parser
+effects.parser lexer compiler.errors generic.parser
+strings.parser ;
 IN: debugger
 
 GENERIC: error. ( error -- )
@@ -16,48 +18,42 @@ GENERIC: error-help ( error -- topic )
 M: object error. . ;
 M: object error-help drop f ;
 
-M: tuple error. describe ;
 M: tuple error-help class ;
 
 M: string error. print ;
 
 : :s ( -- )
-    error-continuation get continuation-data stack. ;
+    error-continuation get data>> stack. ;
 
 : :r ( -- )
-    error-continuation get continuation-retain stack. ;
+    error-continuation get retain>> stack. ;
 
 : :c ( -- )
-    error-continuation get continuation-call callstack. ;
+    error-continuation get call>> callstack. ;
 
 : :get ( variable -- value )
-    error-continuation get continuation-name assoc-stack ;
+    error-continuation get name>> assoc-stack ;
 
-: :vars ( -- )
-    error-continuation get continuation-name namestack. ;
-
-: :res ( n -- )
+: :res ( n -- * )
     1- restarts get-global nth f restarts set-global restart ;
 
-: :1 1 :res ;
-: :2 2 :res ;
-: :3 3 :res ;
+: :1 ( -- * ) 1 :res ;
+: :2 ( -- * ) 2 :res ;
+: :3 ( -- * ) 3 :res ;
 
 : restart. ( restart n -- )
     [
         1+ dup 3 <= [ ":" % # "    " % ] [ # " :res  " % ] if
-        restart-name %
+        name>> %
     ] "" make print ;
 
 : restarts. ( -- )
-    restarts get dup empty? [
-        drop
-    ] [
+    restarts get [
         nl
         "The following restarts are available:" print
         nl
-        dup length [ restart. ] 2each
-    ] if ;
+        [ restart. ] each-index
+    ] unless-empty ;
 
 : print-error ( error -- )
     [ error. flush ] curry
@@ -73,33 +69,12 @@ M: string error. print ;
 : try ( quot -- )
     [ print-error-and-restarts ] recover ;
 
-ERROR: assert got expect ;
-
-: assert= ( a b -- ) 2dup = [ 2drop ] [ assert ] if ;
-
-: depth ( -- n ) datastack length ;
-
-: trim-datastacks ( seq1 seq2 -- seq1' seq2' )
-    2dup [ length ] bi@ min tuck tail >r tail r> ;
-
-ERROR: relative-underflow stack ;
-
 M: relative-underflow summary
     drop "Too many items removed from data stack" ;
 
-ERROR: relative-overflow stack ;
-
 M: relative-overflow summary
     drop "Superfluous items pushed to data stack" ;
 
-: assert-depth ( quot -- )
-    >r datastack r> dip >r datastack r>
-    2dup [ length ] compare {
-        { +lt+ [ trim-datastacks nip relative-underflow ] }
-        { +eq+ [ 2drop ] }
-        { +gt+ [ trim-datastacks drop relative-overflow ] }
-    } case ; inline
-
 : expired-error. ( obj -- )
     "Object did not survive image save/load: " write third . ;
 
@@ -143,15 +118,15 @@ M: relative-overflow summary
 : stack-overflow. ( obj name -- )
     write " stack overflow" print drop ;
 
-: datastack-underflow. "Data" stack-underflow. ;
-: datastack-overflow. "Data" stack-overflow. ;
-: retainstack-underflow. "Retain" stack-underflow. ;
-: retainstack-overflow. "Retain" stack-overflow. ;
+: datastack-underflow. ( obj -- ) "Data" stack-underflow. ;
+: datastack-overflow. ( obj -- ) "Data" stack-overflow. ;
+: retainstack-underflow. ( obj -- ) "Retain" stack-underflow. ;
+: retainstack-overflow. ( obj -- ) "Retain" stack-overflow. ;
 
-: memory-error.
+: memory-error. ( error -- )
     "Memory protection fault at address " write third .h ;
 
-: primitive-error.
+: primitive-error. ( error -- ) 
     "Unimplemented primitive" print drop ;
 
 PREDICATE: kernel-error < array
@@ -161,7 +136,7 @@ PREDICATE: kernel-error < array
         [ second 0 15 between? ]
     } cond ;
 
-: kernel-errors
+: kernel-errors ( error -- n errors )
     second {
         { 0  [ expired-error.          ] }
         { 1  [ io-error.               ] }
@@ -190,12 +165,13 @@ M: no-method summary
 
 M: no-method error.
     "Generic word " write
-    dup no-method-generic pprint
+    dup generic>> pprint
     " does not define a method for the " write
-    dup no-method-object class pprint
+    dup object>> class pprint
     " class." print
-    "Allowed classes: " write dup no-method-generic order .
-    "Dispatching on object: " write no-method-object short. ;
+    "Dispatching on object: " write object>> short. ;
+
+M: bad-slot-value summary drop "Bad store to specialized slot" ;
 
 M: no-math-method summary
     drop "No suitable arithmetic method" ;
@@ -209,12 +185,18 @@ M: inconsistent-next-method summary
 M: check-method summary
     drop "Invalid parameters for create-method" ;
 
-M: no-tuple-class summary
-    drop "BOA constructors can only be defined for tuple classes" ;
+M: not-a-tuple summary
+    drop "Not a tuple" ;
 
 M: bad-superclass summary
     drop "Tuple classes can only inherit from other tuple classes" ;
 
+M: no-initial-value summary
+    drop "Initial value must be provided for slots specialized to this class" ;
+
+M: bad-initial-value summary
+    drop "Incompatible initial value" ;
+
 M: no-cond summary
     drop "Fall-through in cond" ;
 
@@ -223,7 +205,7 @@ M: no-case summary
 
 M: slice-error error.
     "Cannot create slice because " write
-    slice-error-reason print ;
+    reason>> print ;
 
 M: bounds-error summary drop "Sequence index out of bounds" ;
 
@@ -248,74 +230,96 @@ M: immutable summary drop "Sequence is immutable" ;
 
 M: redefine-error error.
     "Re-definition of " write
-    redefine-error-def . ;
+    def>> . ;
 
 M: undefined summary
     drop "Calling a deferred word before it has been defined" ;
 
 M: no-compilation-unit error.
     "Attempting to define " write
-    no-compilation-unit-definition pprint
+    definition>> pprint
     " outside of a compilation unit" print ;
 
 M: no-vocab summary
     drop "Vocabulary does not exist" ;
 
-M: bad-ptr summary
-    drop "Memory allocation failed" ;
-
-M: double-free summary
-    drop "Free failed since memory is not allocated" ;
-
-M: realloc-error summary
-    drop "Memory reallocation failed" ;
-
-: error-in-thread. ( thread -- )
-    "Error in thread " write
-    [
-        dup thread-id #
-        " (" % dup thread-name %
-        ", " % dup thread-quot unparse-short % ")" %
-    ] "" make swap write-object ":" print nl ;
-
-! Hooks
-M: thread error-in-thread ( error thread -- )
-    initial-thread get-global eq? [
-        die drop
-    ] [
-        global [
-            error-thread get-global error-in-thread. print-error flush
-        ] bind
-    ] if ;
-
 M: encode-error summary drop "Character encoding error" ;
 
 M: decode-error summary drop "Character decoding error" ;
 
-M: no-such-slot summary drop "No such slot" ;
-
-M: immutable-slot summary drop "Slot is immutable" ;
-
 M: bad-create summary drop "Bad parameters to create" ;
 
 M: attempt-all-error summary drop "Nothing to attempt" ;
 
 M: already-disposed summary drop "Attempting to operate on disposed object" ;
 
-<PRIVATE
+M: no-current-vocab summary
+    drop "Not in a vocabulary; IN: form required" ;
 
-: init-debugger ( -- )
-    V{ } clone set-catchstack
-    ! VM calls on error
-    [
-        self error-thread set-global
-        continuation error-continuation set-global
-        rethrow
-    ] 5 setenv
-    ! VM adds this to kernel errors, so that user-space
-    ! can identify them
-    "kernel-error" 6 setenv ;
+M: no-word-error summary
+    drop "Word not found in current vocabulary search path" ;
 
-PRIVATE>
+M: staging-violation summary
+    drop
+    "A parsing word cannot be used in the same file it is defined in." ;
 
-[ init-debugger ] "debugger" add-init-hook
+M: bad-number summary
+    drop "Bad number literal" ;
+
+M: duplicate-slot-names summary
+    drop "Duplicate slot names" ;
+
+M: invalid-slot-name summary
+    drop "Invalid slot name" ;
+
+: file. ( file -- ) path>> <pathname> . ;
+
+M: source-file-error error.
+    [ file>> file. ] [ error>> error. ] bi ;
+
+M: source-file-error summary
+    error>> summary ;
+
+M: source-file-error compute-restarts
+    error>> compute-restarts ;
+
+M: source-file-error error-help
+    error>> error-help ;
+
+M: not-in-a-method-error summary
+    drop "call-next-method can only be called in a method definition" ;
+
+GENERIC: expected>string ( obj -- str )
+
+M: f expected>string drop "end of input" ;
+M: word expected>string name>> ;
+M: string expected>string ;
+
+M: unexpected error.
+    "Expected " write
+    dup want>> expected>string write
+    " but got " write
+    got>> expected>string print ;
+
+M: lexer-error error.
+    [ lexer-dump ] [ error>> error. ] bi ;
+
+M: lexer-error summary
+    error>> summary ;
+
+M: lexer-error compute-restarts
+    error>> compute-restarts ;
+
+M: lexer-error error-help
+    error>> error-help ;
+
+M: object compiler-error. ( error word -- )
+    nl
+    "While compiling " write pprint ": " print
+    nl
+    print-error ;
+
+M: bad-effect summary
+    drop "Bad stack effect declaration" ;
+
+M: bad-escape summary drop "Bad escape code" ;
diff --git a/core/debugger/summary.txt b/basis/debugger/summary.txt
similarity index 100%
rename from core/debugger/summary.txt
rename to basis/debugger/summary.txt
diff --git a/basis/debugger/threads/threads.factor b/basis/debugger/threads/threads.factor
new file mode 100644
index 0000000000..7bb240859e
--- /dev/null
+++ b/basis/debugger/threads/threads.factor
@@ -0,0 +1,28 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors debugger continuations threads threads.private
+io io.styles prettyprint kernel math.parser namespaces ;
+IN: debugger.threads
+
+: error-in-thread. ( thread -- )
+    "Error in thread " write
+    [
+        dup id>> #
+        " (" % dup name>> %
+        ", " % dup quot>> unparse-short % ")" %
+    ] "" make swap write-object ":" print ;
+
+M: thread error-in-thread ( error thread -- )
+    initial-thread get-global eq? [
+        die drop
+    ] [
+        global [
+            error-thread get-global error-in-thread. nl
+            print-error nl
+            :c
+            flush
+        ] bind
+    ] if ;
+
+[ self error-in-thread stop ]
+thread-error-hook set-global
diff --git a/extra/delegate/author.txt b/basis/delegate/author.txt
similarity index 100%
rename from extra/delegate/author.txt
rename to basis/delegate/author.txt
diff --git a/core/io/encodings/string/authors.txt b/basis/delegate/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/io/encodings/string/authors.txt
rename to basis/delegate/authors.txt
diff --git a/extra/delegate/delegate-docs.factor b/basis/delegate/delegate-docs.factor
similarity index 62%
rename from extra/delegate/delegate-docs.factor
rename to basis/delegate/delegate-docs.factor
index e6a2ad7bf4..93bf70b950 100644
--- a/extra/delegate/delegate-docs.factor
+++ b/basis/delegate/delegate-docs.factor
@@ -28,13 +28,22 @@ HELP: group-words
 { $values { "group" "a group" } { "words" "an array of words" } }
 { $description "Given a protocol or tuple class, this returns the corresponding generic words that this group contains." } ;
 
-ARTICLE: { "delegate" "intro" } "Delegation module"
-"This vocabulary defines methods for consultation and mimicry, independent of the current Factor object system; it is a replacement for Factor's builtin delegation system. Fundamental to the concept of generic word groups, which can be specific protocols, generic words or tuple slot accessors. Fundamentally, a group is a word which has a method for " { $link group-words } ". One type of group is a tuple, which consists of the slot words. To define a group as a set of words, use"
+ARTICLE: { "delegate" "intro" } "Delegation"
+"The " { $vocab-link "delegate" } " vocabulary implements run-time consultation for method dispatch."
+$nl
+"Fundamental to the concept of " { $emphasis "protocols" } ", which are groups of tuple slot accessors, or groups of arbtirary generic words."
+$nl
+"This allows an object to implement a certain protocol by passing the method calls to another object."
+$nl
+"Unlike " { $link "tuple-subclassing" } ", which expresses " { $emphasis "is-a" } " relationships by statically including the methods and slots of the superclass in all subclasses, consultation forwards generic word calls to another distinct object."
+$nl
+"Fundamentally, a protocol is a word which has a method for " { $link group-words } ". One type of protocol is a tuple, which consists of the slot accessors. To define a protocol as a set of words, use"
 { $subsection POSTPONE: PROTOCOL: }
 { $subsection define-protocol }
-"One method of object extension which this vocabulary defines is consultation. This is slightly different from the current Factor concept of delegation, in that instead of delegating for all generic words not implemented, only generic words included in a specific group are consulted. Additionally, instead of using a single hard-coded delegate slot, you can specify any quotation to execute in order to retrieve who to consult. The literal syntax and defining word are"
+"The literal syntax and defining word are:"
 { $subsection POSTPONE: CONSULT: }
-{ $subsection define-consult } ;
+{ $subsection define-consult }
+"The " { $vocab-link "delegate.protocols" } " vocabulary defines formal protocols for the various informal protocols used in the Factor core, such as " { $link "sequence-protocol" } ", " { $link "assocs-protocol" } " or " { $link "stream-protocol" } ;
 
 IN: delegate
 ABOUT: { "delegate" "intro" }
diff --git a/extra/delegate/delegate-tests.factor b/basis/delegate/delegate-tests.factor
similarity index 80%
rename from extra/delegate/delegate-tests.factor
rename to basis/delegate/delegate-tests.factor
index ab0ea988ea..d1e7d31656 100755
--- a/extra/delegate/delegate-tests.factor
+++ b/basis/delegate/delegate-tests.factor
@@ -1,6 +1,6 @@
 USING: delegate kernel arrays tools.test words math definitions
 compiler.units parser generic prettyprint io.streams.string
-accessors ;
+accessors eval ;
 IN: delegate.tests
 
 TUPLE: hello this that ;
@@ -15,7 +15,7 @@ GENERIC# whoa 1 ( s t -- w )
 PROTOCOL: baz foo { bar 0 } { whoa 1 } ;
 
 : hello-test ( hello/goodbye -- array )
-    [ hello? ] [ hello-this ] [ hello-that ] tri 3array ;
+    [ hello? ] [ this>> ] [ that>> ] tri 3array ;
 
 CONSULT: baz goodbye these>> ;
 M: hello foo this>> ;
@@ -34,8 +34,8 @@ M: hello bing hello-test ;
 [ 3 ] [ 1 0 <hello> 2 whoa ] unit-test
 [ 3 ] [ 1 0 <hello> f <goodbye> 2 whoa ] unit-test
 
-[ ] [ 3 [ "USE: delegate IN: delegate.tests CONSULT: baz goodbye goodbye-these ;" eval ] times ] unit-test
-[ H{ { goodbye [ goodbye-these ] } } ] [ baz protocol-consult ] unit-test
+[ ] [ 3 [ "USING: accessors delegate ; IN: delegate.tests CONSULT: baz goodbye these>> ;" eval ] times ] unit-test
+[ H{ { goodbye [ these>> ] } } ] [ baz protocol-consult ] unit-test
 [ H{ } ] [ bee protocol-consult ] unit-test
 
 [ "USING: delegate ;\nIN: delegate.tests\nPROTOCOL: baz foo bar { whoa 1 } ;\n" ] [ [ baz see ] with-string-writer ] unit-test
@@ -79,3 +79,15 @@ CONSULT: beta hey value>> 1- ;
 [ -1 ] [ 1 <hey> four ] unit-test
 [ ] [ "IN: delegate.tests FORGET: alpha" eval ] unit-test
 [ f ] [ hey \ one method ] unit-test
+
+TUPLE: slot-protocol-test-1 a b ;
+TUPLE: slot-protocol-test-2 < slot-protocol-test-1 { c integer } ;
+
+TUPLE: slot-protocol-test-3 d ;
+
+CONSULT: slot-protocol-test-2 slot-protocol-test-3 d>> ;
+
+[ "a" "b" 5 ] [
+    T{ slot-protocol-test-3 f T{ slot-protocol-test-2 f "a" "b" 5 } }
+    [ a>> ] [ b>> ] [ c>> ] tri
+] unit-test
diff --git a/extra/delegate/delegate.factor b/basis/delegate/delegate.factor
similarity index 82%
rename from extra/delegate/delegate.factor
rename to basis/delegate/delegate.factor
index c375dcf874..fd9b9977e1 100755
--- a/extra/delegate/delegate.factor
+++ b/basis/delegate/delegate.factor
@@ -1,8 +1,8 @@
-! Copyright (C) 2007 Daniel Ehrenberg
+! Copyright (C) 2007, 2008 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
-USING: parser generic kernel classes words slots assocs
-sequences arrays vectors definitions prettyprint combinators.lib
-math hashtables sets ;
+USING: accessors parser generic kernel classes classes.tuple
+words slots assocs sequences arrays vectors definitions
+prettyprint math hashtables sets macros namespaces ;
 IN: delegate
 
 : protocol-words ( protocol -- words )
@@ -14,20 +14,30 @@ IN: delegate
 GENERIC: group-words ( group -- words )
 
 M: tuple-class group-words
-    "slot-names" word-prop [
-        [ reader-word ] [ writer-word ] bi
-        2array [ 0 2array ] map
+    all-slots [
+        name>>
+        [ reader-word 0 2array ]
+        [ writer-word 0 2array ] bi
+        2array
     ] map concat ;
 
 ! Consultation
 
 : consult-method ( word class quot -- )
     [ drop swap first create-method ]
-    [ nip swap first2 swapd [ ndip ] 2curry swap suffix ] 3bi
+    [
+        nip
+        [
+            over second saver %
+            %
+            dup second restorer %
+            first ,
+        ] [ ] make
+    ] 3bi
     define ;
 
 : change-word-prop ( word prop quot -- )
-    rot word-props swap change-at ; inline
+    rot props>> swap change-at ; inline
 
 : register-protocol ( group class quot -- )
     rot \ protocol-consult [ swapd ?set-at ] change-word-prop ;
diff --git a/core/io/encodings/utf16/authors.txt b/basis/delegate/protocols/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from core/io/encodings/utf16/authors.txt
rename to basis/delegate/protocols/authors.txt
diff --git a/extra/delegate/protocols/protocols.factor b/basis/delegate/protocols/protocols.factor
similarity index 92%
rename from extra/delegate/protocols/protocols.factor
rename to basis/delegate/protocols/protocols.factor
index 1e83c15694..81310c16c0 100755
--- a/extra/delegate/protocols/protocols.factor
+++ b/basis/delegate/protocols/protocols.factor
@@ -12,8 +12,7 @@ PROTOCOL: sequence-protocol
 
 PROTOCOL: assoc-protocol
     at* assoc-size >alist set-at assoc-clone-like
-    { assoc-find 1 } delete-at clear-assoc new-assoc
-    assoc-like ;
+    delete-at clear-assoc new-assoc assoc-like ;
 
 PROTOCOL: input-stream-protocol
     stream-read1 stream-read stream-read-partial stream-readln
diff --git a/extra/delegate/summary.txt b/basis/delegate/summary.txt
similarity index 100%
rename from extra/delegate/summary.txt
rename to basis/delegate/summary.txt
diff --git a/core/prettyprint/authors.txt b/basis/deques/authors.txt
similarity index 100%
rename from core/prettyprint/authors.txt
rename to basis/deques/authors.txt
diff --git a/basis/deques/deques-docs.factor b/basis/deques/deques-docs.factor
new file mode 100644
index 0000000000..5a4b33887b
--- /dev/null
+++ b/basis/deques/deques-docs.factor
@@ -0,0 +1,89 @@
+IN: deques
+USING: help.markup help.syntax kernel ;
+
+ARTICLE: "deques" "Dequeues"
+"A deque is a data structure with constant-time insertion and removal of elements at both ends. Dequeue operations are defined in the " { $vocab-link "deques" } " vocabulary."
+$nl
+"Dequeues must be instances of a mixin class:"
+{ $subsection deque }
+"Dequeues must implement a protocol."
+$nl
+"Querying the deque:"
+{ $subsection peek-front }
+{ $subsection peek-back }
+{ $subsection deque-length }
+{ $subsection deque-member? }
+"Adding and removing elements:"
+{ $subsection push-front* }
+{ $subsection push-back* }
+{ $subsection pop-front* }
+{ $subsection pop-back* }
+{ $subsection clear-deque }
+"Working with node objects output by " { $link push-front* } " and " { $link push-back* } ":"
+{ $subsection delete-node }
+{ $subsection node-value }
+"Utility operations built in terms of the above:"
+{ $subsection deque-empty? }
+{ $subsection push-front }
+{ $subsection push-all-front }
+{ $subsection push-back }
+{ $subsection push-all-back }
+{ $subsection pop-front }
+{ $subsection pop-back }
+{ $subsection slurp-deque }
+"When using a deque as a queue, the convention is to queue elements with " { $link push-front } " and deque them with " { $link pop-back } "." ;
+
+ABOUT: "deques"
+
+HELP: deque-empty?
+{ $values { "deque" { $link deque } } { "?" "a boolean" } }
+{ $description "Returns true if a deque is empty." }
+{ $notes "This operation is O(1)." } ;
+
+HELP: push-front
+{ $values { "obj" object } { "deque" deque } }
+{ $description "Push the object onto the front of the deque." } 
+{ $notes "This operation is O(1)." } ;
+
+HELP: push-front*
+{ $values { "obj" object } { "deque" deque } { "node" "a node" } }
+{ $description "Push the object onto the front of the deque and return the newly created node." } 
+{ $notes "This operation is O(1)." } ;
+
+HELP: push-back
+{ $values { "obj" object } { "deque" deque } }
+{ $description "Push the object onto the back of the deque." } 
+{ $notes "This operation is O(1)." } ;
+
+HELP: push-back*
+{ $values { "obj" object } { "deque" deque } { "node" "a node" } }
+{ $description "Push the object onto the back of the deque and return the newly created node." } 
+{ $notes "This operation is O(1)." } ;
+
+HELP: peek-front
+{ $values { "deque" deque } { "obj" object } }
+{ $description "Returns the object at the front of the deque." } ;
+
+HELP: pop-front
+{ $values { "deque" deque } { "obj" object } }
+{ $description "Pop the object off the front of the deque and return the object." }
+{ $notes "This operation is O(1)." } ;
+
+HELP: pop-front*
+{ $values { "deque" deque } }
+{ $description "Pop the object off the front of the deque." }
+{ $notes "This operation is O(1)." } ;
+
+HELP: peek-back
+{ $values { "deque" deque } { "obj" object } }
+{ $description "Returns the object at the back of the deque." } ;
+
+HELP: pop-back
+{ $values { "deque" deque } { "obj" object } }
+{ $description "Pop the object off the back of the deque and return the object." }
+{ $notes "This operation is O(1)." } ;
+
+HELP: pop-back*
+{ $values { "deque" deque } }
+{ $description "Pop the object off the back of the deque." }
+{ $notes "This operation is O(1)." } ;
diff --git a/basis/deques/deques.factor b/basis/deques/deques.factor
new file mode 100644
index 0000000000..1d86a3f1db
--- /dev/null
+++ b/basis/deques/deques.factor
@@ -0,0 +1,43 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences math ;
+IN: deques
+
+GENERIC: push-front* ( obj deque -- node )
+GENERIC: push-back* ( obj deque -- node )
+GENERIC: peek-front ( deque -- obj )
+GENERIC: peek-back ( deque -- obj )
+GENERIC: pop-front* ( deque -- )
+GENERIC: pop-back* ( deque -- )
+GENERIC: delete-node ( node deque -- )
+GENERIC: deque-length ( deque -- n )
+GENERIC: deque-member? ( value deque -- ? )
+GENERIC: clear-deque ( deque -- )
+GENERIC: node-value ( node -- value )
+
+: deque-empty? ( deque -- ? )
+    deque-length zero? ;
+
+: push-front ( obj deque -- )
+    push-front* drop ;
+
+: push-all-front ( seq deque -- )
+    [ push-front ] curry each ;
+
+: push-back ( obj deque -- )
+    push-back* drop ;
+
+: push-all-back ( seq deque -- )
+    [ push-back ] curry each ;
+
+: pop-front ( deque -- obj )
+    [ peek-front ] [ pop-front* ] bi ;
+
+: pop-back ( deque -- obj )
+    [ peek-back ] [ pop-back* ] bi ;
+
+: slurp-deque ( deque quot -- )
+    [ drop [ deque-empty? not ] curry ]
+    [ [ pop-back ] prepose curry ] 2bi [ ] while ; inline
+
+MIXIN: deque
diff --git a/basis/deques/summary.txt b/basis/deques/summary.txt
new file mode 100644
index 0000000000..2f348ebb05
--- /dev/null
+++ b/basis/deques/summary.txt
@@ -0,0 +1 @@
+Double-ended queue protocol and common operations
diff --git a/extra/bit-vectors/tags.txt b/basis/deques/tags.txt
similarity index 100%
rename from extra/bit-vectors/tags.txt
rename to basis/deques/tags.txt
diff --git a/extra/disjoint-set/authors.txt b/basis/disjoint-sets/authors.txt
similarity index 100%
rename from extra/disjoint-set/authors.txt
rename to basis/disjoint-sets/authors.txt
diff --git a/basis/disjoint-sets/disjoint-sets-docs.factor b/basis/disjoint-sets/disjoint-sets-docs.factor
new file mode 100644
index 0000000000..40e14b7fca
--- /dev/null
+++ b/basis/disjoint-sets/disjoint-sets-docs.factor
@@ -0,0 +1,58 @@
+IN: disjoint-sets
+USING: help.markup help.syntax kernel assocs math ;
+
+HELP: <disjoint-set>
+{ $values { "disjoint-set" disjoint-set } }
+{ $description "Creates a new disjoint set data structure with no elements." } ;
+
+HELP: add-atom
+{ $values { "a" object } { "disjoint-set" disjoint-set } }
+{ $description "Adds a new element to the disjoint set, initially only equivalent to itself." } ;
+
+HELP: equiv-set-size
+{ $values { "a" object } { "disjoint-set" disjoint-set } { "n" integer } }
+{ $description "Outputs the number of elements in the equivalence class of " { $snippet "a" } "." } ;
+
+HELP: equiv?
+{ $values { "a" object } { "b" object } { "disjoint-set" disjoint-set } { "?" "a boolean" } }
+{ $description "Tests if two elements belong to the same equivalence class." } ;
+
+HELP: equate
+{ $values { "a" object } { "b" object } { "disjoint-set" disjoint-set } }
+{ $description "Merges the equivalence classes of two elements, which must previously have been added with " { $link add-atom } "." } ;
+
+HELP: assoc>disjoint-set
+{ $values { "assoc" assoc } { "disjoint-set" disjoint-set } }
+{ $description "Given an assoc representation of a graph where the keys are vertices and key/value pairs are edges, creates a disjoint set whose elements are the keys of assoc, and two keys are equvalent if they belong to the same connected component of the graph." }
+{ $examples
+    { $example
+        "USING: disjoint-sets kernel prettyprint ;"
+        "H{ { 1 1 } { 2 1 } { 3 4 } { 4 4 } { 5 3 } } assoc>disjoint-set"
+        "1 2 pick equiv? ."
+        "4 5 pick equiv? ."
+        "1 5 pick equiv? ."
+        "drop"
+        "t\nt\nf"
+    }
+} ;
+
+ARTICLE: "disjoint-sets" "Disjoint sets"
+"The " { $emphasis "disjoint set" } " data structure, also known as " { $emphasis "union-find" } " (after the two main operations which it supports) represents a set of elements partitioned into disjoint equivalence classes, or alternatively, an equivalence relation on a set."
+$nl
+"The two main supported operations are equating two elements, which joins their equivalence classes, and checking if two elements belong to the same equivalence class. Both operations have the time complexity of the inverse Ackermann function, which for all intents and purposes is constant time."
+$nl
+"The class of disjoint sets:"
+{ $subsection disjoint-set }
+"Creating new disjoint sets:"
+{ $subsection <disjoint-set> }
+{ $subsection assoc>disjoint-set }
+"Queries:"
+{ $subsection equiv? }
+{ $subsection equiv-set-size }
+"Adding elements:"
+{ $subsection add-atom }
+"Equating elements:"
+{ $subsection equate }
+"Additionally, disjoint sets implement the " { $link clone } " generic word." ;
+
+ABOUT: "disjoint-sets"
diff --git a/basis/disjoint-sets/disjoint-sets.factor b/basis/disjoint-sets/disjoint-sets.factor
new file mode 100644
index 0000000000..4ef787d33b
--- /dev/null
+++ b/basis/disjoint-sets/disjoint-sets.factor
@@ -0,0 +1,108 @@
+! Copyright (C) 2008 Eric Mertens.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays hints kernel locals math hashtables
+assocs fry sequences ;
+IN: disjoint-sets
+
+TUPLE: disjoint-set
+{ parents hashtable read-only }
+{ ranks hashtable read-only }
+{ counts hashtable read-only } ;
+
+<PRIVATE
+
+: count ( a disjoint-set -- n )
+    counts>> at ; inline
+
+: add-count ( p a disjoint-set -- )
+    [ count [ + ] curry ] keep counts>> swap change-at ; inline
+
+: parent ( a disjoint-set -- p )
+    parents>> at ; inline
+
+: set-parent ( p a disjoint-set -- )
+    parents>> set-at ; inline
+
+: link-sets ( p a disjoint-set -- )
+    [ set-parent ] [ add-count ] 3bi ; inline
+
+: rank ( a disjoint-set -- r )
+    ranks>> at ; inline
+
+: inc-rank ( a disjoint-set -- )
+    ranks>> [ 1+ ] change-at ; inline
+
+: representative? ( a disjoint-set -- ? )
+    dupd parent = ; inline
+
+GENERIC: representative ( a disjoint-set -- p )
+
+M: disjoint-set representative
+    2dup representative? [ drop ] [
+        [ [ parent ] keep representative dup ] 2keep set-parent
+    ] if ;
+
+: representatives ( a b disjoint-set -- r r )
+    [ representative ] curry bi@ ; inline
+
+: ranks ( a b disjoint-set -- r r )
+    [ rank ] curry bi@ ; inline
+
+:: branch ( a b neg zero pos -- )
+    a b = zero [ a b < neg pos if ] if ; inline
+
+PRIVATE>
+
+: <disjoint-set> ( -- disjoint-set )
+    H{ } clone H{ } clone H{ } clone disjoint-set boa ;
+
+GENERIC: add-atom ( a disjoint-set -- )
+
+M: disjoint-set add-atom
+    [ dupd parents>> set-at ]
+    [ 0 -rot ranks>> set-at ]
+    [ 1 -rot counts>> set-at ]
+    2tri ;
+
+: add-atoms ( seq disjoint-set -- ) '[ , add-atom ] each ;
+
+GENERIC: disjoint-set-member? ( a disjoint-set -- ? )
+
+M: disjoint-set disjoint-set-member? parents>> key? ;
+
+GENERIC: equiv-set-size ( a disjoint-set -- n )
+
+M: disjoint-set equiv-set-size [ representative ] keep count ;
+
+GENERIC: equiv? ( a b disjoint-set -- ? )
+
+M: disjoint-set equiv? representatives = ;
+
+GENERIC: equate ( a b disjoint-set -- )
+
+M:: disjoint-set equate ( a b disjoint-set -- )
+    a b disjoint-set representatives
+    2dup = [ 2drop ] [
+        2dup disjoint-set ranks
+        [ swap ] [ over disjoint-set inc-rank ] [ ] branch
+        disjoint-set link-sets
+    ] if ;
+
+: equate-all-with ( seq a disjoint-set -- )
+    '[ , , equate ] each ;
+
+: equate-all ( seq disjoint-set -- )
+    over empty? [ 2drop ] [
+        [ unclip-slice ] dip equate-all-with
+    ] if ;
+
+M: disjoint-set clone
+    [ parents>> ] [ ranks>> ] [ counts>> ] tri [ clone ] tri@
+    disjoint-set boa ;
+
+: assoc>disjoint-set ( assoc -- disjoint-set )
+    <disjoint-set>
+    [ '[ drop , add-atom ] assoc-each ]
+    [ '[ , equate ] assoc-each ]
+    [ nip ]
+    2tri ;
diff --git a/extra/disjoint-set/summary.txt b/basis/disjoint-sets/summary.txt
similarity index 100%
rename from extra/disjoint-set/summary.txt
rename to basis/disjoint-sets/summary.txt
diff --git a/extra/circular/tags.txt b/basis/disjoint-sets/tags.txt
similarity index 100%
rename from extra/circular/tags.txt
rename to basis/disjoint-sets/tags.txt
diff --git a/core/dlists/authors.txt b/basis/dlists/authors.txt
similarity index 100%
rename from core/dlists/authors.txt
rename to basis/dlists/authors.txt
diff --git a/basis/dlists/dlists-docs.factor b/basis/dlists/dlists-docs.factor
new file mode 100755
index 0000000000..557010cf7c
--- /dev/null
+++ b/basis/dlists/dlists-docs.factor
@@ -0,0 +1,50 @@
+USING: help.markup help.syntax kernel quotations
+deques ;
+IN: dlists
+
+ARTICLE: "dlists" "Double-linked lists"
+"A double-linked list is the canonical implementation of a " { $link deque } "."
+$nl
+"Double-linked lists form a class:"
+{ $subsection dlist }
+{ $subsection dlist? }
+"Constructing a double-linked list:"
+{ $subsection <dlist> }
+"Double-linked lists support all the operations of the deque protocol (" { $link "deques" } ") as well as the following."
+$nl
+"Iterating over elements:"
+{ $subsection dlist-each }
+{ $subsection dlist-find }
+{ $subsection dlist-contains? }
+"Deleting a node matching a predicate:"
+{ $subsection delete-node-if* }
+{ $subsection delete-node-if } ;
+
+ABOUT: "dlists"
+
+HELP: dlist-find
+{ $values { "dlist" { $link dlist } } { "quot" quotation } { "obj/f" "an object or " { $link f } } { "?" "a boolean" } }
+{ $description "Applies the quotation to each element of the " { $link dlist } " in turn, until it outputs a true value or the end of the " { $link dlist } " is reached.  Outputs either the object it found or " { $link f } ", and a boolean which is true if an object is found." }
+{ $notes "Returns a boolean to allow dlists to store " { $link f } "."
+    $nl
+    "This operation is O(n)."
+} ;
+
+HELP: dlist-contains?
+{ $values { "dlist" { $link dlist } } { "quot" quotation } { "?" "a boolean" } }
+{ $description "Just like " { $link dlist-find } " except it doesn't return the object." }
+{ $notes "This operation is O(n)." } ;
+
+HELP: delete-node-if*
+{ $values { "dlist" { $link dlist } } { "quot" quotation } { "obj/f" "an object or " { $link f } } { "?" "a boolean" } }
+{ $description "Calls " { $link dlist-find } " on the " { $link dlist } " and deletes the node returned, if any.  Returns the value of the deleted node and a boolean to allow the deleted value to distinguished from " { $link f } ", for nothing deleted." }
+{ $notes "This operation is O(n)." } ;
+
+HELP: delete-node-if
+{ $values { "dlist" { $link dlist } } { "quot" quotation } { "obj/f" "an object or " { $link f } } }
+{ $description "Like " { $link delete-node-if* } " but cannot distinguish from deleting a node whose value is " { $link f } " or not deleting an element." }
+{ $notes "This operation is O(n)." } ;
+
+HELP: dlist-each
+{ $values { "dlist" { $link dlist } } { "quot" quotation } }
+{ $description "Iterate a " { $link dlist } ", calling quot on each element." } ;
diff --git a/core/dlists/dlists-tests.factor b/basis/dlists/dlists-tests.factor
similarity index 57%
rename from core/dlists/dlists-tests.factor
rename to basis/dlists/dlists-tests.factor
index 886572c867..15022452ee 100755
--- a/core/dlists/dlists-tests.factor
+++ b/basis/dlists/dlists-tests.factor
@@ -1,17 +1,17 @@
-USING: dlists dlists.private kernel tools.test random assocs
-sets sequences namespaces sorting debugger io prettyprint
+USING: deques dlists dlists.private kernel tools.test random
+assocs sets sequences namespaces sorting debugger io prettyprint
 math accessors classes ;
 IN: dlists.tests
 
-[ t ] [ <dlist> dlist-empty? ] unit-test
+[ t ] [ <dlist> deque-empty? ] unit-test
 
 [ T{ dlist f T{ dlist-node f 1 f f } T{ dlist-node f 1 f f } 1 } ]
 [ <dlist> 1 over push-front ] unit-test
 
 ! Make sure empty lists are empty
-[ t ] [ <dlist> dlist-empty? ] unit-test
-[ f ] [ <dlist> 1 over push-front dlist-empty? ] unit-test
-[ f ] [ <dlist> 1 over push-back dlist-empty? ] unit-test
+[ t ] [ <dlist> deque-empty? ] unit-test
+[ f ] [ <dlist> 1 over push-front deque-empty? ] unit-test
+[ f ] [ <dlist> 1 over push-back deque-empty? ] unit-test
 
 [ 1 ] [ <dlist> 1 over push-front pop-front ] unit-test
 [ 1 ] [ <dlist> 1 over push-front pop-back ] unit-test
@@ -25,22 +25,22 @@ IN: dlists.tests
 ! Test the prev,next links for two nodes
 [ f ] [
     <dlist> 1 over push-back 2 over push-back
-    dlist-front dlist-node-prev
+    front>> prev>>
 ] unit-test
 
 [ 2 ] [
     <dlist> 1 over push-back 2 over push-back
-    dlist-front dlist-node-next dlist-node-obj
+    front>> next>> obj>>
 ] unit-test
 
 [ 1 ] [
     <dlist> 1 over push-back 2 over push-back
-    dlist-front dlist-node-next dlist-node-prev dlist-node-obj
+    front>> next>> prev>> obj>>
 ] unit-test
 
 [ f ] [
     <dlist> 1 over push-back 2 over push-back
-    dlist-front dlist-node-next dlist-node-next
+    front>> next>> next>>
 ] unit-test
 
 [ f f ] [ <dlist> [ 1 = ] dlist-find ] unit-test
@@ -50,55 +50,30 @@ IN: dlists.tests
 [ t ] [ <dlist> 1 over push-back [ 1 = ] dlist-contains? ] unit-test
 
 [ 1 ] [ <dlist> 1 over push-back [ 1 = ] delete-node-if ] unit-test
-[ t ] [ <dlist> 1 over push-back dup [ 1 = ] delete-node-if drop dlist-empty? ] unit-test
-[ t ] [ <dlist> 1 over push-back dup [ 1 = ] delete-node-if drop dlist-empty? ] unit-test
-[ 0 ] [ <dlist> 1 over push-back dup [ 1 = ] delete-node-if drop dlist-length ] unit-test
-[ 1 ] [ <dlist> 1 over push-back 2 over push-back dup [ 1 = ] delete-node-if drop dlist-length ] unit-test
-[ 2 ] [ <dlist> 1 over push-back 2 over push-back 3 over push-back dup [ 1 = ] delete-node-if drop dlist-length ] unit-test
-[ 2 ] [ <dlist> 1 over push-back 2 over push-back 3 over push-back dup [ 2 = ] delete-node-if drop dlist-length ] unit-test
-[ 2 ] [ <dlist> 1 over push-back 2 over push-back 3 over push-back dup [ 3 = ] delete-node-if drop dlist-length ] unit-test
+[ t ] [ <dlist> 1 over push-back dup [ 1 = ] delete-node-if drop deque-empty? ] unit-test
+[ t ] [ <dlist> 1 over push-back dup [ 1 = ] delete-node-if drop deque-empty? ] unit-test
+[ 0 ] [ <dlist> 1 over push-back dup [ 1 = ] delete-node-if drop deque-length ] unit-test
+[ 1 ] [ <dlist> 1 over push-back 2 over push-back dup [ 1 = ] delete-node-if drop deque-length ] unit-test
+[ 2 ] [ <dlist> 1 over push-back 2 over push-back 3 over push-back dup [ 1 = ] delete-node-if drop deque-length ] unit-test
+[ 2 ] [ <dlist> 1 over push-back 2 over push-back 3 over push-back dup [ 2 = ] delete-node-if drop deque-length ] unit-test
+[ 2 ] [ <dlist> 1 over push-back 2 over push-back 3 over push-back dup [ 3 = ] delete-node-if drop deque-length ] unit-test
 
-[ 0 ] [ <dlist> dlist-length ] unit-test
-[ 1 ] [ <dlist> 1 over push-front dlist-length ] unit-test
-[ 0 ] [ <dlist> 1 over push-front dup pop-front* dlist-length ] unit-test
-
-: assert-same-elements
-    [ prune natural-sort ] bi@ assert= ;
-
-: dlist-delete-all [ dlist-delete drop ] curry each ;
-
-: dlist>array [ [ , ] dlist-slurp ] { } make ;
-
-[ ] [
-    5 [ drop 30 random >fixnum ] map prune
-    6 [ drop 30 random >fixnum ] map prune [
-        <dlist>
-        [ push-all-front ]
-        [ dlist-delete-all ]
-        [ dlist>array ] tri
-    ] 2keep swap diff assert-same-elements
-] unit-test
-
-[ ] [
-    <dlist> "d" set
-    1 "d" get push-front
-    2 "d" get push-front
-    3 "d" get push-front
-    4 "d" get push-front
-    2 "d" get dlist-delete drop
-    3 "d" get dlist-delete drop
-    4 "d" get dlist-delete drop
-] unit-test
-
-[ 1 ] [ "d" get dlist-length ] unit-test
-[ 1 ] [ "d" get dlist>array length ] unit-test
+[ 0 ] [ <dlist> deque-length ] unit-test
+[ 1 ] [ <dlist> 1 over push-front deque-length ] unit-test
+[ 0 ] [ <dlist> 1 over push-front dup pop-front* deque-length ] unit-test
 
 [ t ] [ <dlist> 4 over push-back 5 over push-back [ obj>> 4 = ] dlist-find-node drop class dlist-node = ] unit-test
 [ t ] [ <dlist> 4 over push-back 5 over push-back [ obj>> 5 = ] dlist-find-node drop class dlist-node = ] unit-test
 [ t ] [ <dlist> 4 over push-back 5 over push-back* [ = ] curry dlist-find-node drop class dlist-node = ] unit-test
 [ ] [ <dlist> 4 over push-back 5 over push-back [ drop ] dlist-each ] unit-test
 
-[ <dlist> peek-front ] must-fail
-[ <dlist> peek-back ] must-fail
+[ <dlist> peek-front ] [ empty-dlist? ] must-fail-with
+[ <dlist> peek-back ] [ empty-dlist? ] must-fail-with
 [ <dlist> pop-front ] [ empty-dlist? ] must-fail-with
 [ <dlist> pop-back ] [ empty-dlist? ] must-fail-with
+
+[ t ] [ <dlist> 3 over push-front 4 over push-back 3 swap deque-member? ] unit-test
+
+[ f ] [ <dlist> 3 over push-front 4 over push-back -1 swap deque-member? ] unit-test
+
+[ f ] [ <dlist> 0 swap deque-member? ] unit-test
diff --git a/core/dlists/dlists.factor b/basis/dlists/dlists.factor
similarity index 61%
rename from core/dlists/dlists.factor
rename to basis/dlists/dlists.factor
index e07bfcdabe..3b3cae2820 100755
--- a/core/dlists/dlists.factor
+++ b/basis/dlists/dlists.factor
@@ -1,16 +1,17 @@
 ! Copyright (C) 2007, 2008 Mackenzie Straight, Doug Coleman,
 ! Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators kernel math sequences accessors inspector ;
+USING: combinators kernel math sequences accessors deques
+summary ;
 IN: dlists
 
 TUPLE: dlist front back length ;
 
 : <dlist> ( -- obj )
     dlist new
-    0 >>length ;
+        0 >>length ;
 
-: dlist-empty? ( dlist -- ? ) front>> not ;
+M: dlist deque-length length>> ;
 
 <PRIVATE
 
@@ -18,6 +19,8 @@ TUPLE: dlist-node obj prev next ;
 
 C: <dlist-node> dlist-node
 
+M: dlist-node node-value obj>> ;
+
 : inc-length ( dlist -- )
     [ 1+ ] change-length drop ; inline
 
@@ -45,11 +48,11 @@ C: <dlist-node> dlist-node
 : set-front-to-back ( dlist -- )
     dup front>> [ dup back>> >>front ] unless drop ;
 
-: (dlist-find-node) ( dlist-node quot -- node/f ? )
+: (dlist-find-node) ( dlist-node quot: ( node -- ? ) -- node/f ? )
     over [
         [ call ] 2keep rot
         [ drop t ] [ >r next>> r> (dlist-find-node) ] if
-    ] [ 2drop f f ] if ; inline
+    ] [ 2drop f f ] if ; inline recursive
 
 : dlist-find-node ( dlist quot -- node/f ? )
     >r front>> r> (dlist-find-node) ; inline
@@ -57,69 +60,59 @@ C: <dlist-node> dlist-node
 : dlist-each-node ( dlist quot -- )
     [ f ] compose dlist-find-node 2drop ; inline
 
+: unlink-node ( dlist-node -- )
+    dup prev>> over next>> set-prev-when
+    dup next>> swap prev>> set-next-when ;
+
 PRIVATE>
 
-: push-front* ( obj dlist -- dlist-node )
+M: dlist push-front* ( obj dlist -- dlist-node )
     [ front>> f swap <dlist-node> dup dup set-next-prev ] keep
     [ (>>front) ] keep
     [ set-back-to-front ] keep
     inc-length ;
 
-: push-front ( obj dlist -- )
-    push-front* drop ;
-
-: push-all-front ( seq dlist -- )
-    [ push-front ] curry each ;
-
-: push-back* ( obj dlist -- dlist-node )
+M: dlist push-back* ( obj dlist -- dlist-node )
     [ back>> f <dlist-node> ] keep
     [ back>> set-next-when ] 2keep
     [ (>>back) ] 2keep
     [ set-front-to-back ] keep
     inc-length ;
 
-: push-back ( obj dlist -- )
-    push-back* drop ;
-
-: push-all-back ( seq dlist -- )
-    [ push-back ] curry each ;
-
 ERROR: empty-dlist ;
 
 M: empty-dlist summary ( dlist -- )
-    drop "Emtpy dlist" ;
+    drop "Empty dlist" ;
 
-: peek-front ( dlist -- obj )
-    front>> [ empty-dlist ] unless* obj>> ;
+M: dlist peek-front ( dlist -- obj )
+    front>> [ obj>> ] [ empty-dlist ] if* ;
 
-: pop-front ( dlist -- obj )
-    dup front>> [ empty-dlist ] unless*
+M: dlist pop-front* ( dlist -- )
+    dup front>> [ empty-dlist ] unless
     [
+        dup front>>
         dup next>>
         f rot (>>next)
         f over set-prev-when
         swap (>>front)
-    ] 2keep obj>>
-    swap [ normalize-back ] keep dec-length ;
+    ] keep
+    [ normalize-back ] keep
+    dec-length ;
 
-: pop-front* ( dlist -- )
-    pop-front drop ;
+M: dlist peek-back ( dlist -- obj )
+    back>> [ obj>> ] [ empty-dlist ] if* ;
 
-: peek-back ( dlist -- obj )
-    back>> [ empty-dlist ] unless* obj>> ;
-
-: pop-back ( dlist -- obj )
-    dup back>> [ empty-dlist ] unless*
+M: dlist pop-back* ( dlist -- )
+    dup back>> [ empty-dlist ] unless
     [
+        dup back>>
         dup prev>>
         f rot (>>prev)
         f over set-next-when
         swap (>>back)
-    ] 2keep obj>>
-    swap [ normalize-front ] keep dec-length ;
-
-: pop-back* ( dlist -- )
-    pop-back drop ;
+    ] keep
+    [ normalize-front ] keep
+    dec-length ;
 
 : dlist-find ( dlist quot -- obj/f ? )
     [ obj>> ] prepose
@@ -128,21 +121,20 @@ M: empty-dlist summary ( dlist -- )
 : dlist-contains? ( dlist quot -- ? )
     dlist-find nip ; inline
 
-: unlink-node ( dlist-node -- )
-    dup prev>> over next>> set-prev-when
-    dup next>> swap prev>> set-next-when ;
+M: dlist deque-member? ( value dlist -- ? )
+    [ = ] with dlist-contains? ;
 
-: delete-node ( dlist dlist-node -- )
+M: dlist delete-node ( dlist-node dlist -- )
     {
-        { [ over front>> over eq? ] [ drop pop-front* ] }
-        { [ over back>> over eq? ] [ drop pop-back* ] }
-        [ unlink-node dec-length ]
+        { [ 2dup front>> eq? ] [ nip pop-front* ] }
+        { [ 2dup back>> eq? ] [ nip pop-back* ] }
+        [ dec-length unlink-node ]
     } cond ;
 
 : delete-node-if* ( dlist quot -- obj/f ? )
     dupd dlist-find-node [
         dup [
-            [ delete-node ] keep obj>> t
+            [ swap delete-node ] keep obj>> t
         ] [
             2drop f f
         ] if
@@ -151,13 +143,9 @@ M: empty-dlist summary ( dlist -- )
     ] if ; inline
 
 : delete-node-if ( dlist quot -- obj/f )
-    [ obj>> ] prepose
-    delete-node-if* drop ; inline
+    [ obj>> ] prepose delete-node-if* drop ; inline
 
-: dlist-delete ( obj dlist -- obj/f )
-    swap [ eq? ] curry delete-node-if ;
-
-: dlist-delete-all ( dlist -- )
+M: dlist clear-deque ( dlist -- )
     f >>front
     f >>back
     0 >>length
@@ -166,9 +154,6 @@ M: empty-dlist summary ( dlist -- )
 : dlist-each ( dlist quot -- )
     [ obj>> ] prepose dlist-each-node ; inline
 
-: dlist-slurp ( dlist quot -- )
-    over dlist-empty?
-    [ 2drop ] [ [ >r pop-back r> call ] 2keep dlist-slurp ] if ;
-    inline
-
 : 1dlist ( obj -- dlist ) <dlist> [ push-front ] keep ;
+
+INSTANCE: dlist deque
diff --git a/core/dlists/summary.txt b/basis/dlists/summary.txt
similarity index 100%
rename from core/dlists/summary.txt
rename to basis/dlists/summary.txt
diff --git a/extra/columns/tags.txt b/basis/dlists/tags.txt
similarity index 100%
rename from extra/columns/tags.txt
rename to basis/dlists/tags.txt
diff --git a/core/prettyprint/backend/authors.txt b/basis/documents/authors.txt
similarity index 100%
rename from core/prettyprint/backend/authors.txt
rename to basis/documents/authors.txt
diff --git a/extra/documents/documents-docs.factor b/basis/documents/documents-docs.factor
similarity index 100%
rename from extra/documents/documents-docs.factor
rename to basis/documents/documents-docs.factor
diff --git a/extra/documents/documents-tests.factor b/basis/documents/documents-tests.factor
similarity index 100%
rename from extra/documents/documents-tests.factor
rename to basis/documents/documents-tests.factor
diff --git a/extra/documents/documents.factor b/basis/documents/documents.factor
similarity index 89%
rename from extra/documents/documents.factor
rename to basis/documents/documents.factor
index 435a0aca55..cac7574e35 100755
--- a/extra/documents/documents.factor
+++ b/basis/documents/documents.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2006, 2007 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays io kernel math models namespaces sequences strings
-splitting combinators unicode.categories math.order ;
+USING: accessors arrays io kernel math models namespaces
+sequences strings splitting combinators unicode.categories
+math.order ;
 IN: documents
 
 : +col ( loc n -- newloc ) >r first2 r> + 2array ;
@@ -14,23 +15,23 @@ IN: documents
 
 : lines-equal? ( loc1 loc2 -- ? ) [ first ] bi@ number= ;
 
-TUPLE: document locs ;
+TUPLE: document < model locs ;
 
 : <document> ( -- document )
-    V{ "" } clone <model> V{ } clone
-    { set-delegate set-document-locs } document construct ;
+    V{ "" } clone document new-model
+    V{ } clone >>locs ;
 
-: add-loc document-locs push ;
+: add-loc ( loc document -- ) locs>> push ;
 
-: remove-loc document-locs delete ;
+: remove-loc ( loc document -- ) locs>> delete ;
 
 : update-locs ( loc document -- )
-    document-locs [ set-model ] with each ;
+    locs>> [ set-model ] with each ;
 
-: doc-line ( n document -- string ) model-value nth ;
+: doc-line ( n document -- string ) value>> nth ;
 
 : doc-lines ( from to document -- slice )
-    >r 1+ r> model-value <slice> ;
+    >r 1+ r> value>> <slice> ;
 
 : start-on-line ( document from line# -- n1 )
     >r dup first r> = [ nip second ] [ 2drop 0 ] if ;
@@ -98,7 +99,7 @@ TUPLE: document locs ;
     >r >r >r "" r> r> r> set-doc-range ;
 
 : last-line# ( document -- line )
-    model-value length 1- ;
+    value>> length 1- ;
 
 : validate-line ( line document -- line )
     last-line# min 0 max ;
@@ -116,7 +117,7 @@ TUPLE: document locs ;
     [ last-line# ] keep line-end ;
 
 : validate-loc ( loc document -- newloc )
-    over first over model-value length >= [
+    over first over value>> length >= [
         nip doc-end
     ] [
         over first 0 < [
@@ -127,11 +128,11 @@ TUPLE: document locs ;
     ] if ;
 
 : doc-string ( document -- str )
-    model-value "\n" join ;
+    value>> "\n" join ;
 
 : set-doc-string ( string document -- )
     >r string-lines V{ } like r> [ set-model ] keep
-    dup doc-end swap update-locs ;
+    [ doc-end ] [ update-locs ] bi ;
 
 : clear-doc ( document -- )
     "" swap set-doc-string ;
@@ -178,7 +179,7 @@ M: one-char-elt next-elt 2drop ;
     >r >r first2 swap r> doc-line r> call
     r> =col ; inline
 
-: ((word-elt)) [ ?nth blank? ] 2keep ;
+: ((word-elt)) ( n seq -- ? n seq ) [ ?nth blank? ] 2keep ;
 
 : break-detector ( ? -- quot )
     [ >r blank? r> xor ] curry ; inline
diff --git a/extra/documents/summary.txt b/basis/documents/summary.txt
similarity index 100%
rename from extra/documents/summary.txt
rename to basis/documents/summary.txt
diff --git a/core/prettyprint/config/authors.txt b/basis/editors/authors.txt
similarity index 100%
rename from core/prettyprint/config/authors.txt
rename to basis/editors/authors.txt
diff --git a/extra/editors/editors-docs.factor b/basis/editors/editors-docs.factor
similarity index 84%
rename from extra/editors/editors-docs.factor
rename to basis/editors/editors-docs.factor
index 2b9e4cc021..0f50e40eb4 100644
--- a/extra/editors/editors-docs.factor
+++ b/basis/editors/editors-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax parser vocabs.loader ;
+USING: help.markup help.syntax parser source-files vocabs.loader ;
 IN: editors
 
 ARTICLE: "editor" "Editor integration"
@@ -35,4 +35,4 @@ HELP: no-edit-hook
 { $error-description "Thrown when " { $link edit } " is called when the " { $link edit-hook } " variable is not set. See " { $link "editor" } "." } ;
 
 HELP: :edit
-{ $description "If the most recent error was a " { $link parse-error } " thrown while parsing a source file, opens the source file at the failing line in the default editor using the " { $link edit-hook } ". See " { $link "editor" } "." } ;
+{ $description "If the most recent error was a " { $link source-file-error } " thrown while parsing a source file, opens the source file at the failing line in the default editor using the " { $link edit-hook } ". See " { $link "editor" } "." } ;
diff --git a/extra/editors/editors.factor b/basis/editors/editors.factor
similarity index 56%
rename from extra/editors/editors.factor
rename to basis/editors/editors.factor
index a15a12830c..90c40f9bd5 100755
--- a/extra/editors/editors.factor
+++ b/basis/editors/editors.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: parser kernel namespaces sequences definitions io.files
-inspector continuations tools.crossref tools.vocabs 
-io prettyprint source-files assocs vocabs vocabs.loader
-io.backend splitting accessors ;
+USING: parser lexer kernel namespaces sequences definitions
+io.files summary continuations tools.crossref tools.vocabs io
+prettyprint source-files assocs vocabs vocabs.loader io.backend
+splitting accessors ;
 IN: editors
 
 TUPLE: no-edit-hook ;
@@ -35,25 +35,39 @@ SYMBOL: edit-hook
 : edit-vocab ( name -- )
     vocab-source-path 1 edit-location ;
 
-GENERIC: find-parse-error ( error -- error' )
+GENERIC: error-file ( error -- file )
 
-M: parse-error find-parse-error
-    dup error>> find-parse-error [ ] [ ] ?if ;
+GENERIC: error-line ( error -- line )
 
-M: condition find-parse-error
-    error>> find-parse-error ;
+M: lexer-error error-file
+    error>> error-file ;
 
-M: object find-parse-error
+M: lexer-error error-line
+    [ error>> error-line ] [ line>> ] bi or ;
+
+M: source-file-error error-file
+    [ error>> error-file ] [ file>> path>> ] bi or ;
+
+M: source-file-error error-line
+    error>> error-line ;
+
+M: condition error-file
+    error>> error-file ;
+
+M: condition error-line
+    error>> error-line ;
+
+M: object error-file
+    drop f ;
+
+M: object error-line
     drop f ;
 
 : :edit ( -- )
-    error get find-parse-error [
-        [ file>> path>> ] [ line>> ] bi edit-location
-    ] when* ;
+    error get [ error-file ] [ error-line ] bi
+    2dup and [ edit-location ] [ 2drop ] if ;
 
-: fix ( word -- )
-    [ "Fixing " write pprint " and all usages..." print nl ]
-    [ [ usage ] keep prefix ] bi
+: edit-each ( seq -- )
     [
         [ "Editing " write . ]
         [
@@ -63,3 +77,8 @@ M: object find-parse-error
             readln
         ] bi
     ] all? drop ;
+
+: fix ( word -- )
+    [ "Fixing " write pprint " and all usages..." print nl ]
+    [ [ smart-usage ] keep prefix ] bi
+    edit-each ;
diff --git a/extra/editors/editpadpro/authors.txt b/basis/editors/editpadpro/authors.txt
similarity index 100%
rename from extra/editors/editpadpro/authors.txt
rename to basis/editors/editpadpro/authors.txt
diff --git a/extra/editors/editpadpro/editpadpro-docs.factor b/basis/editors/editpadpro/editpadpro-docs.factor
similarity index 100%
rename from extra/editors/editpadpro/editpadpro-docs.factor
rename to basis/editors/editpadpro/editpadpro-docs.factor
diff --git a/extra/editors/editpadpro/editpadpro.factor b/basis/editors/editpadpro/editpadpro.factor
similarity index 100%
rename from extra/editors/editpadpro/editpadpro.factor
rename to basis/editors/editpadpro/editpadpro.factor
diff --git a/extra/editors/editpadpro/summary.txt b/basis/editors/editpadpro/summary.txt
similarity index 100%
rename from extra/editors/editpadpro/summary.txt
rename to basis/editors/editpadpro/summary.txt
diff --git a/basis/editors/editpadpro/tags.txt b/basis/editors/editpadpro/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/editpadpro/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/editplus/authors.txt b/basis/editors/editplus/authors.txt
similarity index 100%
rename from extra/editors/editplus/authors.txt
rename to basis/editors/editplus/authors.txt
diff --git a/extra/editors/editplus/editplus.factor b/basis/editors/editplus/editplus.factor
similarity index 100%
rename from extra/editors/editplus/editplus.factor
rename to basis/editors/editplus/editplus.factor
diff --git a/extra/editors/editplus/summary.txt b/basis/editors/editplus/summary.txt
similarity index 100%
rename from extra/editors/editplus/summary.txt
rename to basis/editors/editplus/summary.txt
diff --git a/basis/editors/editplus/tags.txt b/basis/editors/editplus/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/editplus/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/arrays/lib/authors.txt b/basis/editors/emacs/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/arrays/lib/authors.txt
rename to basis/editors/emacs/authors.txt
diff --git a/extra/editors/emacs/emacs-docs.factor b/basis/editors/emacs/emacs-docs.factor
similarity index 100%
rename from extra/editors/emacs/emacs-docs.factor
rename to basis/editors/emacs/emacs-docs.factor
diff --git a/extra/editors/emacs/emacs.factor b/basis/editors/emacs/emacs.factor
similarity index 100%
rename from extra/editors/emacs/emacs.factor
rename to basis/editors/emacs/emacs.factor
diff --git a/extra/editors/emacs/summary.txt b/basis/editors/emacs/summary.txt
similarity index 100%
rename from extra/editors/emacs/summary.txt
rename to basis/editors/emacs/summary.txt
diff --git a/basis/editors/emacs/tags.txt b/basis/editors/emacs/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/emacs/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/db/postgresql/authors.txt b/basis/editors/emeditor/authors.txt
similarity index 100%
rename from extra/db/postgresql/authors.txt
rename to basis/editors/emeditor/authors.txt
diff --git a/extra/editors/emeditor/emeditor.factor b/basis/editors/emeditor/emeditor.factor
similarity index 100%
rename from extra/editors/emeditor/emeditor.factor
rename to basis/editors/emeditor/emeditor.factor
diff --git a/extra/editors/emeditor/summary.txt b/basis/editors/emeditor/summary.txt
similarity index 100%
rename from extra/editors/emeditor/summary.txt
rename to basis/editors/emeditor/summary.txt
diff --git a/basis/editors/emeditor/tags.txt b/basis/editors/emeditor/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/emeditor/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/gvim/authors.txt b/basis/editors/gvim/authors.txt
similarity index 100%
rename from extra/editors/gvim/authors.txt
rename to basis/editors/gvim/authors.txt
diff --git a/extra/editors/gvim/gvim.factor b/basis/editors/gvim/gvim.factor
similarity index 56%
rename from extra/editors/gvim/gvim.factor
rename to basis/editors/gvim/gvim.factor
index 62150bdf49..4cc9de17a1 100755
--- a/extra/editors/gvim/gvim.factor
+++ b/basis/editors/gvim/gvim.factor
@@ -1,16 +1,16 @@
 USING: io.backend io.files kernel math math.parser
 namespaces sequences system combinators
-editors.vim editors.gvim.backend vocabs.loader ;
+editors.vim vocabs.loader ;
 IN: editors.gvim
 
-TUPLE: gvim ;
+SINGLETON: gvim
+
+HOOK: gvim-path io-backend ( -- path )
 
 M: gvim vim-command ( file line -- string )
-    [ "\"" % gvim-path % "\" \"" % swap % "\" +" % # ] "" make ;
+    [ gvim-path , swap , "+" swap number>string append , ] { } make ;
 
-t vim-detach set-global ! don't block the ui
-
-T{ gvim } vim-editor set-global
+gvim vim-editor set-global
 
 {
     { [ os unix? ] [ "editors.gvim.unix" ] }
diff --git a/extra/editors/gvim/summary.txt b/basis/editors/gvim/summary.txt
similarity index 100%
rename from extra/editors/gvim/summary.txt
rename to basis/editors/gvim/summary.txt
diff --git a/basis/editors/gvim/tags.txt b/basis/editors/gvim/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/gvim/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/emeditor/authors.txt b/basis/editors/gvim/unix/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/editors/emeditor/authors.txt
rename to basis/editors/gvim/unix/authors.txt
diff --git a/basis/editors/gvim/unix/tags.txt b/basis/editors/gvim/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/gvim/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/gvim/unix/unix.factor b/basis/editors/gvim/unix/unix.factor
similarity index 63%
rename from extra/editors/gvim/unix/unix.factor
rename to basis/editors/gvim/unix/unix.factor
index 3b8f7454c1..82b6bf199d 100644
--- a/extra/editors/gvim/unix/unix.factor
+++ b/basis/editors/gvim/unix/unix.factor
@@ -1,4 +1,4 @@
-USING: io.unix.backend kernel namespaces editors.gvim.backend
+USING: io.unix.backend kernel namespaces editors.gvim
 system ;
 IN: editors.gvim.unix
 
diff --git a/extra/editors/gvim/backend/authors.txt b/basis/editors/gvim/windows/authors.txt
similarity index 100%
rename from extra/editors/gvim/backend/authors.txt
rename to basis/editors/gvim/windows/authors.txt
diff --git a/basis/editors/gvim/windows/tags.txt b/basis/editors/gvim/windows/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/gvim/windows/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/gvim/windows/windows.factor b/basis/editors/gvim/windows/windows.factor
similarity index 76%
rename from extra/editors/gvim/windows/windows.factor
rename to basis/editors/gvim/windows/windows.factor
index daf5409c94..8c4e1aaacb 100755
--- a/extra/editors/gvim/windows/windows.factor
+++ b/basis/editors/gvim/windows/windows.factor
@@ -1,4 +1,4 @@
-USING: editors.gvim.backend io.files io.windows kernel namespaces
+USING: editors.gvim io.files io.windows kernel namespaces
 sequences windows.shell32 io.paths system ;
 IN: editors.gvim.windows
 
diff --git a/core/prettyprint/sections/authors.txt b/basis/editors/jedit/authors.txt
similarity index 100%
rename from core/prettyprint/sections/authors.txt
rename to basis/editors/jedit/authors.txt
diff --git a/extra/editors/jedit/jedit.factor b/basis/editors/jedit/jedit.factor
similarity index 100%
rename from extra/editors/jedit/jedit.factor
rename to basis/editors/jedit/jedit.factor
diff --git a/extra/editors/jedit/summary.txt b/basis/editors/jedit/summary.txt
similarity index 100%
rename from extra/editors/jedit/summary.txt
rename to basis/editors/jedit/summary.txt
diff --git a/basis/editors/jedit/tags.txt b/basis/editors/jedit/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/jedit/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/gvim/unix/authors.txt b/basis/editors/notepadpp/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/editors/gvim/unix/authors.txt
rename to basis/editors/notepadpp/authors.txt
diff --git a/extra/editors/notepadpp/notepadpp.factor b/basis/editors/notepadpp/notepadpp.factor
similarity index 100%
rename from extra/editors/notepadpp/notepadpp.factor
rename to basis/editors/notepadpp/notepadpp.factor
diff --git a/extra/editors/notepadpp/summary.txt b/basis/editors/notepadpp/summary.txt
similarity index 100%
rename from extra/editors/notepadpp/summary.txt
rename to basis/editors/notepadpp/summary.txt
diff --git a/basis/editors/notepadpp/tags.txt b/basis/editors/notepadpp/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/notepadpp/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/scite/authors.txt b/basis/editors/scite/authors.txt
similarity index 100%
rename from extra/editors/scite/authors.txt
rename to basis/editors/scite/authors.txt
diff --git a/extra/editors/scite/scite.factor b/basis/editors/scite/scite.factor
similarity index 100%
rename from extra/editors/scite/scite.factor
rename to basis/editors/scite/scite.factor
diff --git a/extra/editors/scite/summary.txt b/basis/editors/scite/summary.txt
similarity index 100%
rename from extra/editors/scite/summary.txt
rename to basis/editors/scite/summary.txt
diff --git a/basis/editors/scite/tags.txt b/basis/editors/scite/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/scite/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/summary.txt b/basis/editors/summary.txt
similarity index 100%
rename from extra/editors/summary.txt
rename to basis/editors/summary.txt
diff --git a/core/listener/tags.txt b/basis/editors/tags.txt
similarity index 100%
rename from core/listener/tags.txt
rename to basis/editors/tags.txt
diff --git a/extra/editors/gvim/windows/authors.txt b/basis/editors/ted-notepad/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/editors/gvim/windows/authors.txt
rename to basis/editors/ted-notepad/authors.txt
diff --git a/extra/editors/ted-notepad/summary.txt b/basis/editors/ted-notepad/summary.txt
similarity index 100%
rename from extra/editors/ted-notepad/summary.txt
rename to basis/editors/ted-notepad/summary.txt
diff --git a/basis/editors/ted-notepad/tags.txt b/basis/editors/ted-notepad/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/ted-notepad/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/ted-notepad/ted-notepad.factor b/basis/editors/ted-notepad/ted-notepad.factor
similarity index 100%
rename from extra/editors/ted-notepad/ted-notepad.factor
rename to basis/editors/ted-notepad/ted-notepad.factor
diff --git a/extra/editors/textmate/authors.txt b/basis/editors/textmate/authors.txt
similarity index 100%
rename from extra/editors/textmate/authors.txt
rename to basis/editors/textmate/authors.txt
diff --git a/extra/editors/textmate/summary.txt b/basis/editors/textmate/summary.txt
similarity index 100%
rename from extra/editors/textmate/summary.txt
rename to basis/editors/textmate/summary.txt
diff --git a/basis/editors/textmate/tags.txt b/basis/editors/textmate/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/textmate/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/textmate/textmate.factor b/basis/editors/textmate/textmate.factor
similarity index 100%
rename from extra/editors/textmate/textmate.factor
rename to basis/editors/textmate/textmate.factor
diff --git a/extra/editors/textwrangler/authors.txt b/basis/editors/textwrangler/authors.txt
similarity index 100%
rename from extra/editors/textwrangler/authors.txt
rename to basis/editors/textwrangler/authors.txt
diff --git a/extra/editors/textwrangler/summary.txt b/basis/editors/textwrangler/summary.txt
similarity index 100%
rename from extra/editors/textwrangler/summary.txt
rename to basis/editors/textwrangler/summary.txt
diff --git a/basis/editors/textwrangler/tags.txt b/basis/editors/textwrangler/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/textwrangler/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/textwrangler/textwrangler.factor b/basis/editors/textwrangler/textwrangler.factor
similarity index 100%
rename from extra/editors/textwrangler/textwrangler.factor
rename to basis/editors/textwrangler/textwrangler.factor
diff --git a/extra/editors/notepadpp/authors.txt b/basis/editors/ultraedit/authors.txt
similarity index 100%
rename from extra/editors/notepadpp/authors.txt
rename to basis/editors/ultraedit/authors.txt
diff --git a/extra/editors/ultraedit/summary.txt b/basis/editors/ultraedit/summary.txt
similarity index 100%
rename from extra/editors/ultraedit/summary.txt
rename to basis/editors/ultraedit/summary.txt
diff --git a/basis/editors/ultraedit/tags.txt b/basis/editors/ultraedit/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/ultraedit/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/ultraedit/ultraedit.factor b/basis/editors/ultraedit/ultraedit.factor
similarity index 100%
rename from extra/editors/ultraedit/ultraedit.factor
rename to basis/editors/ultraedit/ultraedit.factor
diff --git a/extra/editors/vim/authors.txt b/basis/editors/vim/authors.txt
similarity index 100%
rename from extra/editors/vim/authors.txt
rename to basis/editors/vim/authors.txt
diff --git a/extra/editors/vim/generate-syntax/generate-syntax.factor b/basis/editors/vim/generate-syntax/generate-syntax.factor
similarity index 100%
rename from extra/editors/vim/generate-syntax/generate-syntax.factor
rename to basis/editors/vim/generate-syntax/generate-syntax.factor
diff --git a/basis/editors/vim/generate-syntax/tags.txt b/basis/editors/vim/generate-syntax/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/vim/generate-syntax/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/vim/summary.txt b/basis/editors/vim/summary.txt
similarity index 100%
rename from extra/editors/vim/summary.txt
rename to basis/editors/vim/summary.txt
diff --git a/basis/editors/vim/tags.txt b/basis/editors/vim/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/vim/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/vim/vim-docs.factor b/basis/editors/vim/vim-docs.factor
similarity index 70%
rename from extra/editors/vim/vim-docs.factor
rename to basis/editors/vim/vim-docs.factor
index 020117564d..cf42884084 100644
--- a/extra/editors/vim/vim-docs.factor
+++ b/basis/editors/vim/vim-docs.factor
@@ -11,7 +11,5 @@ $nl
 "USE: vim"
 "\"c:\\\\program files\\\\vim\\\\vim70\\\\gvim\" vim-path set-global"
 }
-"On Unix, you may omit the last line if " { $snippet "\"vim\"" } " is in your " { $snippet "$PATH" } "."
-$nl
-"If you are running the terminal version of Vim, you want it to block Factor until exiting, but for GVim the opposite is desired, so that one can work in Factor and GVim concurrently. The " { $link vim-detach } " global variable can be set to " { $link t } " to detach the Vim process. The default is " { $link f } "." ;
+"On Unix, you may omit the last line if " { $snippet "\"vim\"" } " is in your " { $snippet "$PATH" } "." ;
 
diff --git a/extra/editors/vim/vim.factor b/basis/editors/vim/vim.factor
similarity index 59%
rename from extra/editors/vim/vim.factor
rename to basis/editors/vim/vim.factor
index 9ce256868b..bfbb8f15a5 100755
--- a/extra/editors/vim/vim.factor
+++ b/basis/editors/vim/vim.factor
@@ -3,24 +3,20 @@ namespaces parser prettyprint sequences editors accessors ;
 IN: editors.vim
 
 SYMBOL: vim-path
-SYMBOL: vim-detach
 
 SYMBOL: vim-editor
-HOOK: vim-command vim-editor
+HOOK: vim-command vim-editor ( file line -- array )
 
-TUPLE: vim ;
+SINGLETON: vim
 
-M: vim vim-command ( file line -- array )
+M: vim vim-command
     [
         vim-path get , swap , "+" swap number>string append ,
     ] { } make ;
 
 : vim-location ( file line -- )
-    vim-command
-    <process> swap >>command
-    vim-detach get-global [ t >>detached ] when
-    try-process ;
+    vim-command try-process ;
 
 "vim" vim-path set-global
 [ vim-location ] edit-hook set-global
-T{ vim } vim-editor set-global
+vim vim-editor set-global
diff --git a/extra/editors/ted-notepad/authors.txt b/basis/editors/wordpad/authors.txt
similarity index 100%
rename from extra/editors/ted-notepad/authors.txt
rename to basis/editors/wordpad/authors.txt
diff --git a/extra/editors/wordpad/summary.txt b/basis/editors/wordpad/summary.txt
similarity index 100%
rename from extra/editors/wordpad/summary.txt
rename to basis/editors/wordpad/summary.txt
diff --git a/basis/editors/wordpad/tags.txt b/basis/editors/wordpad/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/editors/wordpad/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/wordpad/wordpad.factor b/basis/editors/wordpad/wordpad.factor
similarity index 100%
rename from extra/editors/wordpad/wordpad.factor
rename to basis/editors/wordpad/wordpad.factor
diff --git a/basis/eval/eval-docs.factor b/basis/eval/eval-docs.factor
new file mode 100644
index 0000000000..057d291b7f
--- /dev/null
+++ b/basis/eval/eval-docs.factor
@@ -0,0 +1,18 @@
+IN: eval
+USING: help.markup help.syntax strings io ;
+
+HELP: eval
+{ $values { "str" string } }
+{ $description "Parses Factor source code from a string, and calls the resulting quotation." }
+{ $errors "Throws an error if the input is malformed, or if the evaluation itself throws an error." } ;
+
+HELP: eval>string
+{ $values { "str" string } { "output" string } }
+{ $description "Evaluates the Factor code in " { $snippet "str" } " with " { $link output-stream } " rebound to a string output stream, then outputs the resulting string." } ;
+
+ARTICLE: "eval" "Evaluating strings at runtime"
+"Evaluating strings at runtime:"
+{ $subsection eval }
+{ $subsection eval>string } ;
+
+ABOUT: "eval"
diff --git a/basis/eval/eval.factor b/basis/eval/eval.factor
new file mode 100644
index 0000000000..5b22fec159
--- /dev/null
+++ b/basis/eval/eval.factor
@@ -0,0 +1,14 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: splitting parser compiler.units kernel namespaces
+debugger io.streams.string ;
+IN: eval
+
+: eval ( str -- )
+    [ string-lines parse-fresh ] with-compilation-unit call ;
+
+: eval>string ( str -- output )
+    [
+        parser-notes off
+        [ [ eval ] keep ] try drop
+    ] with-string-writer ;
diff --git a/extra/io/launcher/authors.txt b/basis/farkup/authors.txt
similarity index 100%
rename from extra/io/launcher/authors.txt
rename to basis/farkup/authors.txt
diff --git a/basis/farkup/farkup-docs.factor b/basis/farkup/farkup-docs.factor
new file mode 100644
index 0000000000..f2d53d2362
--- /dev/null
+++ b/basis/farkup/farkup-docs.factor
@@ -0,0 +1,51 @@
+USING: help.markup help.syntax strings io ;
+IN: farkup
+
+HELP: convert-farkup
+{ $values { "string" string } { "string'" string } }
+{ $description "Parse a Farkup string and convert it to an HTML string." } ;
+
+HELP: write-farkup
+{ $values { "string" string } }
+{ $description "Parse a Farkup string and writes the resulting HTML to " { $link output-stream } "." } ;
+
+HELP: farkup ( string -- farkup )
+{ $values { "string" string } { "farkup" "a Farkup syntax tree node" } }
+{ $description "Parses Farkup and outputs a tree of " { $link "farkup-ast" } "." } ;
+
+HELP: (write-farkup)
+{ $values { "farkup" "a Farkup syntax tree node" } }
+{ $description "Writes a Farkup syntax tree as HTML on " { $link output-stream } "." } ;
+
+ARTICLE: "farkup-ast" "Farkup syntax tree nodes"
+"The " { $link farkup } " word outputs a tree of nodes corresponding to the Farkup syntax of the input string. This tree can be programatically traversed and mutated before being passed on to " { $link write-farkup } "."
+{ $subsection heading1 }
+{ $subsection heading2 }
+{ $subsection heading3 }
+{ $subsection heading4 }
+{ $subsection strong }
+{ $subsection emphasis }
+{ $subsection superscript }
+{ $subsection subscript }
+{ $subsection inline-code }
+{ $subsection paragraph }
+{ $subsection list-item }
+{ $subsection list }
+{ $subsection table }
+{ $subsection table-row }
+{ $subsection link }
+{ $subsection image }
+{ $subsection code } ;
+
+ARTICLE: "farkup" "Farkup"
+"The " { $vocab-link "farkup" } " vocabulary implements Farkup (Factor mARKUP), a simple markup language. Farkup was loosely based on the markup languages employed by MediaWiki and " { $url "http://reddit.com" } "."
+$nl
+"The main entry points for converting Farkup to HTML:"
+{ $subsection convert-farkup }
+{ $subsection write-farkup }
+"The syntax tree of a piece of Farkup can also be inspected and modified:"
+{ $subsection farkup }
+{ $subsection (write-farkup) }
+{ $subsection "farkup-ast" } ;
+
+ABOUT: "farkup"
diff --git a/extra/farkup/farkup-tests.factor b/basis/farkup/farkup-tests.factor
old mode 100755
new mode 100644
similarity index 60%
rename from extra/farkup/farkup-tests.factor
rename to basis/farkup/farkup-tests.factor
index 17d286252e..e25fa34960
--- a/extra/farkup/farkup-tests.factor
+++ b/basis/farkup/farkup-tests.factor
@@ -1,12 +1,26 @@
-USING: farkup kernel tools.test ;
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: farkup kernel peg peg.ebnf tools.test namespaces ;
 IN: farkup.tests
 
-[ "<ul><li>foo</li></ul>" ] [ "-foo" convert-farkup ] unit-test
-[ "<ul><li>foo</li></ul>\n" ] [ "-foo\n" convert-farkup ] unit-test
-[ "<ul><li>foo</li><li>bar</li></ul>" ] [ "-foo\n-bar" convert-farkup ] unit-test
-[ "<ul><li>foo</li><li>bar</li></ul>\n" ] [ "-foo\n-bar\n" convert-farkup ] unit-test
+relative-link-prefix off
+disable-images? off
+link-no-follow? off
 
-[ "<ul><li>foo</li></ul>\n<p>bar\n</p>" ] [ "-foo\nbar\n" convert-farkup ] unit-test
+[ "Baz" ] [ "Foo/Bar/Baz" simple-link-title ] unit-test
+[ "Baz" ] [ "Baz" simple-link-title ] unit-test
+
+[ ] [
+    "abcd-*strong*\nasdifj\nweouh23ouh23"
+    "paragraph" \ farkup rule parse drop
+] unit-test
+
+[ ] [
+    "abcd-*strong*\nasdifj\nweouh23ouh23\n"
+    "paragraph" \ farkup rule parse drop
+] unit-test
+
+[ "<p>a-b</p>" ] [ "a-b" convert-farkup ] unit-test
 [ "<p>*foo\nbar\n</p>" ] [ "*foo\nbar\n" convert-farkup ] unit-test
 [ "<p><strong>Wow!</strong></p>" ] [ "*Wow!*" convert-farkup ] unit-test
 [ "<p><em>Wow.</em></p>" ] [ "_Wow._" convert-farkup ] unit-test
@@ -15,11 +29,20 @@ IN: farkup.tests
 [ "<p>*</p>" ] [ "\\*" convert-farkup ] unit-test
 [ "<p>**</p>" ] [ "\\**" convert-farkup ] unit-test
 
-[ "" ] [ "\n\n" convert-farkup ] unit-test
-[ "" ] [ "\r\n\r\n" convert-farkup ] unit-test
-[ "" ] [ "\r\r\r\r" convert-farkup ] unit-test
-[ "\n" ] [ "\r\r\r" convert-farkup ] unit-test
-[ "\n" ] [ "\n\n\n" convert-farkup ] unit-test
+[ "<ul><li>a-b</li></ul>" ] [ "-a-b" convert-farkup ] unit-test
+[ "<ul><li>foo</li></ul>" ] [ "-foo" convert-farkup ] unit-test
+[ "<ul><li>foo</li>\n</ul>" ] [ "-foo\n" convert-farkup ] unit-test
+[ "<ul><li>foo</li>\n<li>bar</li></ul>" ] [ "-foo\n-bar" convert-farkup ] unit-test
+[ "<ul><li>foo</li>\n<li>bar</li>\n</ul>" ] [ "-foo\n-bar\n" convert-farkup ] unit-test
+
+[ "<ul><li>foo</li>\n</ul><p>bar\n</p>" ] [ "-foo\nbar\n" convert-farkup ] unit-test
+
+
+[ "\n\n" ] [ "\n\n" convert-farkup ] unit-test
+[ "\n\n" ] [ "\r\n\r\n" convert-farkup ] unit-test
+[ "\n\n\n\n" ] [ "\r\r\r\r" convert-farkup ] unit-test
+[ "\n\n\n" ] [ "\r\r\r" convert-farkup ] unit-test
+[ "\n\n\n" ] [ "\n\n\n" convert-farkup ] unit-test
 [ "<p>foo</p><p>bar</p>" ] [ "foo\n\nbar" convert-farkup ] unit-test
 [ "<p>foo</p><p>bar</p>" ] [ "foo\r\n\r\nbar" convert-farkup ] unit-test
 [ "<p>foo</p><p>bar</p>" ] [ "foo\r\rbar" convert-farkup ] unit-test
@@ -29,7 +52,7 @@ IN: farkup.tests
 [ "\n<p>bar\n</p>" ] [ "\rbar\r" convert-farkup ] unit-test
 [ "\n<p>bar\n</p>" ] [ "\r\nbar\r\n" convert-farkup ] unit-test
 
-[ "<p>foo</p>\n<p>bar</p>" ] [ "foo\n\n\nbar" convert-farkup ] unit-test
+[ "<p>foo</p><p>bar</p>" ] [ "foo\n\n\nbar" convert-farkup ] unit-test
 
 [ "" ] [ "" convert-farkup ] unit-test
 
@@ -65,20 +88,33 @@ IN: farkup.tests
 [ "<pre><span class='KEYWORD3'>int</span> <span class='FUNCTION'>main</span><span class='OPERATOR'>(</span><span class='OPERATOR'>)</span>\n</pre>" ]
 [ "[c{int main()}]" convert-farkup ] unit-test
 
-[ "<p><img src=\"lol.jpg\"/></p>" ] [ "[[image:lol.jpg]]" convert-farkup ] unit-test
-[ "<p><img src=\"lol.jpg\" alt=\"teh lol\"/></p>" ] [ "[[image:lol.jpg|teh lol]]" convert-farkup ] unit-test
-[ "<p><a href=\"lol.com\">lol.com</a></p>" ] [ "[[lol.com]]" convert-farkup ] unit-test
-[ "<p><a href=\"lol.com\">haha</a></p>" ] [ "[[lol.com|haha]]" convert-farkup ] unit-test
+[ "<p><img src='lol.jpg'/></p>" ] [ "[[image:lol.jpg]]" convert-farkup ] unit-test
+[ "<p><img src='lol.jpg' alt='teh lol'/></p>" ] [ "[[image:lol.jpg|teh lol]]" convert-farkup ] unit-test
+[ "<p><a href='http://lol.com'>http://lol.com</a></p>" ] [ "[[http://lol.com]]" convert-farkup ] unit-test
+[ "<p><a href='http://lol.com'>haha</a></p>" ] [ "[[http://lol.com|haha]]" convert-farkup ] unit-test
+[ "<p><a href='Foo/Bar'>Bar</a></p>" ] [ "[[Foo/Bar]]" convert-farkup ] unit-test
+
+"/wiki/view/" relative-link-prefix [
+    [ "<p><a href='/wiki/view/Foo/Bar'>Bar</a></p>" ] [ "[[Foo/Bar]]" convert-farkup ] unit-test
+] with-variable
 
 [ ] [ "[{}]" convert-farkup drop ] unit-test
 
+[ "<pre>hello\n</pre>" ] [ "[{hello}]" convert-farkup ] unit-test
+
 [
     "<p>Feature comparison:\n<table><tr><td>a</td><td>Factor</td><td>Java</td><td>Lisp</td></tr><tr><td>Coolness</td><td>Yes</td><td>No</td><td>No</td></tr><tr><td>Badass</td><td>Yes</td><td>No</td><td>No</td></tr><tr><td>Enterprise</td><td>Yes</td><td>Yes</td><td>No</td></tr><tr><td>Kosher</td><td>Yes</td><td>No</td><td>Yes</td></tr></table></p>"
 ] [ "Feature comparison:\n|a|Factor|Java|Lisp|\n|Coolness|Yes|No|No|\n|Badass|Yes|No|No|\n|Enterprise|Yes|Yes|No|\n|Kosher|Yes|No|Yes|\n" convert-farkup ] unit-test
 
 [
-    "<p>Feature comparison:\n\n<table><tr><td>a</td><td>Factor</td><td>Java</td><td>Lisp</td></tr><tr><td>Coolness</td><td>Yes</td><td>No</td><td>No</td></tr><tr><td>Badass</td><td>Yes</td><td>No</td><td>No</td></tr><tr><td>Enterprise</td><td>Yes</td><td>Yes</td><td>No</td></tr><tr><td>Kosher</td><td>Yes</td><td>No</td><td>Yes</td></tr></table></p>"
+    "<p>Feature comparison:</p><table><tr><td>a</td><td>Factor</td><td>Java</td><td>Lisp</td></tr><tr><td>Coolness</td><td>Yes</td><td>No</td><td>No</td></tr><tr><td>Badass</td><td>Yes</td><td>No</td><td>No</td></tr><tr><td>Enterprise</td><td>Yes</td><td>Yes</td><td>No</td></tr><tr><td>Kosher</td><td>Yes</td><td>No</td><td>Yes</td></tr></table>"
 ] [ "Feature comparison:\n\n|a|Factor|Java|Lisp|\n|Coolness|Yes|No|No|\n|Badass|Yes|No|No|\n|Enterprise|Yes|Yes|No|\n|Kosher|Yes|No|Yes|\n" convert-farkup ] unit-test
 
-[ "<p>a-b</p>" ] [ "a-b" convert-farkup ] unit-test
-[ "<ul><li>a-b</li></ul>" ] [ "-a-b" convert-farkup ] unit-test
+[
+    "<p>This wiki is written in <a href='Factor'>Factor</a> and is hosted on a <a href='http://linode.com'>http://linode.com</a> virtual server.</p>"
+] [
+    "This wiki is written in [[Factor]] and is hosted on a [[http://linode.com|http://linode.com]] virtual server."
+    convert-farkup
+] unit-test
+
+[ "<p><a href='a'>a</a> <a href='b'>c</a></p>" ] [ "[[a]] [[b|c]]" convert-farkup ] unit-test
diff --git a/basis/farkup/farkup.factor b/basis/farkup/farkup.factor
new file mode 100644
index 0000000000..4d6ac127ad
--- /dev/null
+++ b/basis/farkup/farkup.factor
@@ -0,0 +1,191 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays combinators html.elements io io.streams.string
+kernel math memoize namespaces peg peg.ebnf prettyprint
+sequences sequences.deep strings xml.entities vectors splitting
+xmode.code2html ;
+IN: farkup
+
+SYMBOL: relative-link-prefix
+SYMBOL: disable-images?
+SYMBOL: link-no-follow?
+
+TUPLE: heading1 obj ;
+TUPLE: heading2 obj ;
+TUPLE: heading3 obj ;
+TUPLE: heading4 obj ;
+TUPLE: strong obj ;
+TUPLE: emphasis obj ;
+TUPLE: superscript obj ;
+TUPLE: subscript obj ;
+TUPLE: inline-code obj ;
+TUPLE: paragraph obj ;
+TUPLE: list-item obj ;
+TUPLE: list obj ;
+TUPLE: table obj ;
+TUPLE: table-row obj ;
+TUPLE: link href text ;
+TUPLE: image href text ;
+TUPLE: code mode string ;
+
+: absolute-url? ( string -- ? )
+    { "http://" "https://" "ftp://" } [ head? ] with contains? ;
+
+: simple-link-title ( string -- string' )
+    dup absolute-url? [ "/" last-split1 swap or ] unless ;
+
+EBNF: farkup
+nl               = ("\r\n" | "\r" | "\n") => [[ drop "\n" ]]
+2nl              = nl nl
+
+heading1      = "=" (!("=" | nl).)+ "="
+    => [[ second >string heading1 boa ]]
+
+heading2      = "==" (!("=" | nl).)+ "=="
+    => [[ second >string heading2 boa ]]
+
+heading3      = "===" (!("=" | nl).)+ "==="
+    => [[ second >string heading3 boa ]]
+
+heading4      = "====" (!("=" | nl).)+ "===="
+    => [[ second >string heading4 boa ]]
+
+strong        = "*" (!("*" | nl).)+ "*"
+    => [[ second >string strong boa ]]
+
+emphasis      = "_" (!("_" | nl).)+ "_"
+    => [[ second >string emphasis boa ]]
+
+superscript   = "^" (!("^" | nl).)+ "^"
+    => [[ second >string superscript boa ]]
+
+subscript     = "~" (!("~" | nl).)+ "~"
+    => [[ second >string subscript boa ]]
+
+inline-code   = "%" (!("%" | nl).)+ "%"
+    => [[ second >string inline-code boa ]]
+
+escaped-char  = "\" .                => [[ second ]]
+
+link-content     = (!("|"|"]").)+
+
+image-link       = "[[image:" link-content  "|" link-content "]]"
+                    => [[ [ second >string ] [ fourth >string ] bi image boa ]]
+                  | "[[image:" link-content "]]"
+                    => [[ second >string f image boa ]]
+
+simple-link      = "[[" link-content "]]"
+    => [[ second >string dup simple-link-title link boa ]]
+
+labelled-link    = "[[" link-content "|" link-content "]]"
+    => [[ [ second >string ] [ fourth >string ] bi link boa ]]
+
+link             = image-link | labelled-link | simple-link
+
+heading          = heading4 | heading3 | heading2 | heading1
+
+inline-tag       = strong | emphasis | superscript | subscript | inline-code
+                   | link | escaped-char
+
+inline-delimiter = '*' | '_' | '^' | '~' | '%' | '\' | '['
+
+table-column     = (list | (!(nl | inline-delimiter | '|').)+ | inline-tag | inline-delimiter  ) '|'
+    => [[ first ]]
+table-row        = "|" (table-column)+
+    => [[ second table-row boa ]]
+table            =  ((table-row nl => [[ first ]] )+ table-row? | table-row)
+    => [[ table boa ]]
+
+paragraph-item = ( table | (!(nl | code | heading | inline-delimiter | table ).) | inline-tag | inline-delimiter)+
+paragraph = ((paragraph-item nl => [[ first ]])+ nl+ => [[ first ]]
+             | (paragraph-item nl)+ paragraph-item?
+             | paragraph-item)
+    => [[ paragraph boa ]]
+                
+list-item      = '-' ((!(inline-delimiter | nl).)+ | inline-tag)*
+    => [[ second list-item boa ]]
+list = ((list-item nl)+ list-item? | list-item)
+    => [[ list boa ]]
+
+code       =  '[' (!('{' | nl | '[').)+ '{' (!("}]").)+ "}]"
+    => [[ [ second >string ] [ fourth >string ] bi code boa ]]
+
+simple-code
+           = "[{" (!("}]").)+ "}]"
+    => [[ second f swap code boa ]]
+
+stand-alone
+           = (code | simple-code | heading | list | table | paragraph | nl)*
+;EBNF
+
+
+
+: invalid-url "javascript:alert('Invalid URL in farkup');" ;
+
+: check-url ( href -- href' )
+    {
+        { [ dup empty? ] [ drop invalid-url ] }
+        { [ dup [ 127 > ] contains? ] [ drop invalid-url ] }
+        { [ dup first "/\\" member? ] [ drop invalid-url ] }
+        { [ CHAR: : over member? ] [ dup absolute-url? [ drop invalid-url ] unless ] }
+        [ relative-link-prefix get prepend ]
+    } cond ;
+
+: escape-link ( href text -- href-esc text-esc )
+    >r check-url escape-quoted-string r> escape-string ;
+
+: write-link ( href text -- )
+    escape-link
+    [ <a =href link-no-follow? get [ "true" =nofollow ] when a> ]
+    [ write </a> ]
+    bi* ;
+
+: write-image-link ( href text -- )
+    disable-images? get [
+        2drop
+        <strong> "Images are not allowed" write </strong>
+    ] [
+        escape-link
+        [ <img =src ] [ [ =alt ] unless-empty img/> ] bi*
+    ] if ;
+
+: render-code ( string mode -- string' )
+    >r string-lines r>
+    [
+        <pre>
+            htmlize-lines
+        </pre>
+    ] with-string-writer write ;
+
+GENERIC: (write-farkup) ( farkup -- )
+: <foo.> ( string -- ) <foo> write ;
+: </foo.> ( string -- ) </foo> write ;
+: in-tag. ( obj quot string -- ) [ <foo.> call ] keep </foo.> ; inline
+M: heading1 (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "h1" in-tag. ;
+M: heading2 (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "h2" in-tag. ;
+M: heading3 (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "h3" in-tag. ;
+M: heading4 (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "h4" in-tag. ;
+M: strong (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "strong" in-tag. ;
+M: emphasis (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "em" in-tag. ;
+M: superscript (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "sup" in-tag. ;
+M: subscript (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "sub" in-tag. ;
+M: inline-code (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "code" in-tag. ;
+M: list-item (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "li" in-tag. ;
+M: list (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "ul" in-tag. ;
+M: paragraph (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "p" in-tag. ;
+M: link (write-farkup) ( obj -- ) [ href>> ] [ text>> ] bi write-link ;
+M: image (write-farkup) ( obj -- ) [ href>> ] [ text>> ] bi write-image-link ;
+M: code (write-farkup) ( obj -- ) [ string>> ] [ mode>> ] bi render-code ;
+M: table-row (write-farkup) ( obj -- )
+    obj>> [ [ [ (write-farkup) ] "td" in-tag. ] each ] "tr" in-tag. ;
+M: table (write-farkup) ( obj -- ) [ obj>> (write-farkup) ] "table" in-tag. ;
+M: fixnum (write-farkup) ( obj -- ) write1 ;
+M: string (write-farkup) ( obj -- ) write ;
+M: vector (write-farkup) ( obj -- ) [ (write-farkup) ] each ;
+M: f (write-farkup) ( obj -- ) drop ;
+
+: write-farkup ( string -- )
+    farkup (write-farkup) ;
+
+: convert-farkup ( string -- string' )
+    farkup [ (write-farkup) ] with-string-writer ;
diff --git a/extra/farkup/summary.txt b/basis/farkup/summary.txt
similarity index 100%
rename from extra/farkup/summary.txt
rename to basis/farkup/summary.txt
diff --git a/extra/ascii/tags.txt b/basis/farkup/tags.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/ascii/tags.txt
rename to basis/farkup/tags.txt
diff --git a/core/refs/authors.txt b/basis/float-arrays/authors.txt
similarity index 100%
rename from core/refs/authors.txt
rename to basis/float-arrays/authors.txt
diff --git a/core/float-arrays/float-arrays-docs.factor b/basis/float-arrays/float-arrays-docs.factor
similarity index 76%
rename from core/float-arrays/float-arrays-docs.factor
rename to basis/float-arrays/float-arrays-docs.factor
index cb36aade6b..6c775dbd78 100644
--- a/core/float-arrays/float-arrays-docs.factor
+++ b/basis/float-arrays/float-arrays-docs.factor
@@ -3,7 +3,7 @@ kernel help.markup help.syntax math ;
 IN: float-arrays
 
 ARTICLE: "float-arrays" "Float arrays"
-"Float arrays are fixed-size mutable sequences (" { $link "sequence-protocol" } ") whose elements are instances of " { $link float } ". Elements are unboxed, hence the memory usage is lower than an equivalent " { $link array } " of floats. The literal syntax is covered in " { $link "syntax-float-arrays" } "."
+"Float arrays are fixed-size mutable sequences (" { $link "sequence-protocol" } ") whose elements are instances of " { $link float } ". Elements are unboxed, hence the memory usage is lower than an equivalent " { $link array } " of floats."
 $nl
 "Float array words are in the " { $vocab-link "float-arrays" } " vocabulary."
 $nl
@@ -19,16 +19,24 @@ $nl
 { $subsection 1float-array }
 { $subsection 2float-array }
 { $subsection 3float-array }
-{ $subsection 4float-array } ;
+{ $subsection 4float-array }
+"Float array literal syntax:"
+{ $subsection POSTPONE: F{ } ;
 
 ABOUT: "float-arrays"
 
-HELP: float-array
-{ $description "The class of float arrays. See " { $link "syntax-float-arrays" } " for syntax and " { $link "float-arrays" } " for general information." } ;
+HELP: F{
+{ $syntax "F{ elements... }" }
+{ $values { "elements" "a list of real numbers" } }
+{ $description "Marks the beginning of a literal float array. Literal float arrays are terminated by " { $link POSTPONE: } } "." } 
+{ $examples { $code "F{ 1.0 2.0 3.0 }" } } ;
 
-HELP: <float-array> ( n initial -- float-array )
-{ $values { "n" "a non-negative integer" } { "initial" float } { "float-array" "a new float array" } }
-{ $description "Creates a new float array holding " { $snippet "n" } " floats with the specified initial element." } ;
+HELP: float-array
+{ $description "The class of float arrays." } ;
+
+HELP: <float-array> ( n -- float-array )
+{ $values { "n" "a non-negative integer" } { "float-array" "a new float array" } }
+{ $description "Creates a new float array holding " { $snippet "n" } " floats with all elements initially set to " { $snippet "0.0" } "." } ;
 
 HELP: >float-array
 { $values { "seq" "a sequence" } { "float-array" float-array } }
diff --git a/basis/float-arrays/float-arrays-tests.factor b/basis/float-arrays/float-arrays-tests.factor
new file mode 100755
index 0000000000..64070b99b7
--- /dev/null
+++ b/basis/float-arrays/float-arrays-tests.factor
@@ -0,0 +1,12 @@
+IN: float-arrays.tests
+USING: float-arrays tools.test sequences.private ;
+
+[ F{ 0.0 0.0 0.0 } ] [ 3 <float-array> ] unit-test
+
+[ F{ 1 2 3 0 0 0 } ] [ 6 F{ 1 2 3 } resize ] unit-test
+
+[ F{ 1 2 } ] [ 2 F{ 1 2 3 4 5 6 7 8 9 } resize ] unit-test
+
+[ -10 F{ } resize ] must-fail
+
+[ F{ 1.3 } ] [ 1.3 1float-array ] unit-test
diff --git a/basis/float-arrays/float-arrays.factor b/basis/float-arrays/float-arrays.factor
new file mode 100755
index 0000000000..411643ddc0
--- /dev/null
+++ b/basis/float-arrays/float-arrays.factor
@@ -0,0 +1,83 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel kernel.private alien.accessors sequences
+sequences.private math math.private byte-arrays accessors
+alien.c-types parser prettyprint.backend ;
+IN: float-arrays
+
+TUPLE: float-array
+{ length array-capacity read-only }
+{ underlying byte-array read-only } ;
+
+: <float-array> ( n -- float-array )
+    dup "double" <c-array> float-array boa ; inline
+
+M: float-array clone
+    [ length>> ] [ underlying>> clone ] bi float-array boa ;
+
+M: float-array length length>> ;
+
+M: float-array nth-unsafe
+    underlying>> double-nth ;
+
+M: float-array set-nth-unsafe
+    [ >float ] 2dip underlying>> set-double-nth ;
+
+: >float-array ( seq -- float-array )
+    T{ float-array } clone-like ; inline
+
+M: float-array like
+    drop dup float-array? [ >float-array ] unless ;
+
+M: float-array new-sequence
+    drop <float-array> ;
+
+M: float-array equal?
+    over float-array? [ sequence= ] [ 2drop f ] if ;
+
+M: float-array resize
+    [ drop ] [
+        [ "double" heap-size * ] [ underlying>> ] bi*
+        resize-byte-array
+    ] 2bi
+    float-array boa ;
+
+M: float-array byte-length length "double" heap-size * ;
+
+INSTANCE: float-array sequence
+
+: 1float-array ( x -- array )
+    1 <float-array> [ set-first ] keep ; inline
+
+: 2float-array ( x y -- array )
+    T{ float-array } 2sequence ; inline
+
+: 3float-array ( x y z -- array )
+    T{ float-array } 3sequence ; inline
+
+: 4float-array ( w x y z -- array )
+    T{ float-array } 4sequence ; inline
+
+: F{ \ } [ >float-array ] parse-literal ; parsing
+
+M: float-array pprint-delims drop \ F{ \ } ;
+M: float-array >pprint-sequence ;
+M: float-array pprint* pprint-object ;
+
+USING: hints math.vectors arrays ;
+
+HINTS: vneg { float-array } { array } ;
+HINTS: v*n { float-array float } { array object } ;
+HINTS: n*v { float float-array } { array object } ;
+HINTS: v/n { float-array float } { array object } ;
+HINTS: n/v { float float-array } { object array } ;
+HINTS: v+ { float-array float-array } { array array } ;
+HINTS: v- { float-array float-array } { array array } ;
+HINTS: v* { float-array float-array } { array array } ;
+HINTS: v/ { float-array float-array } { array array } ;
+HINTS: vmax { float-array float-array } { array array } ;
+HINTS: vmin { float-array float-array } { array array } ;
+HINTS: v. { float-array float-array } { array array } ;
+HINTS: norm-sq { float-array } { array } ;
+HINTS: norm { float-array } { array } ;
+HINTS: normalize { float-array } { array } ;
diff --git a/core/float-arrays/summary.txt b/basis/float-arrays/summary.txt
similarity index 100%
rename from core/float-arrays/summary.txt
rename to basis/float-arrays/summary.txt
diff --git a/extra/digraphs/tags.txt b/basis/float-arrays/tags.txt
similarity index 100%
rename from extra/digraphs/tags.txt
rename to basis/float-arrays/tags.txt
diff --git a/extra/float-vectors/float-vectors-docs.factor b/basis/float-vectors/float-vectors-docs.factor
similarity index 74%
rename from extra/float-vectors/float-vectors-docs.factor
rename to basis/float-vectors/float-vectors-docs.factor
index 5e06f05a2b..714c8512c1 100755
--- a/extra/float-vectors/float-vectors-docs.factor
+++ b/basis/float-vectors/float-vectors-docs.factor
@@ -1,5 +1,5 @@
 USING: arrays float-arrays help.markup help.syntax kernel
-float-vectors.private combinators ;
+combinators ;
 IN: float-vectors
 
 ARTICLE: "float-vectors" "Float vectors"
@@ -30,11 +30,6 @@ HELP: >float-vector
 { $description "Outputs a freshly-allocated float vector with the same elements as a given sequence." }
 { $errors "Throws an error if the sequence contains elements other than real numbers." } ;
 
-HELP: float-array>vector
-{ $values { "float-array" "an array" } { "length" "a non-negative integer" } { "float-vector" float-vector } }
-{ $description "Creates a new float vector using the array for underlying storage with the specified initial length." }
-{ $warning "This word is in the " { $vocab-link "float-vectors.private" } " vocabulary because it does not perform type or bounds checks. User code should call " { $link >float-vector } " instead." } ;
-
 HELP: FV{
 { $syntax "FV{ elements... }" }
 { $values { "elements" "a list of real numbers" } }
diff --git a/extra/float-vectors/float-vectors-tests.factor b/basis/float-vectors/float-vectors-tests.factor
similarity index 63%
rename from extra/float-vectors/float-vectors-tests.factor
rename to basis/float-vectors/float-vectors-tests.factor
index 383dd4bcf2..1483b269e0 100755
--- a/extra/float-vectors/float-vectors-tests.factor
+++ b/basis/float-vectors/float-vectors-tests.factor
@@ -1,10 +1,10 @@
+USING: tools.test float-vectors vectors sequences kernel math ;
 IN: float-vectors.tests
-USING: tools.test float-vectors vectors sequences kernel ;
 
 [ 0 ] [ 123 <float-vector> length ] unit-test
 
 : do-it
-    12345 [ over push ] each ;
+    12345 [ >float over push ] each ;
 
 [ t ] [
     3 <float-vector> do-it
diff --git a/extra/float-vectors/float-vectors.factor b/basis/float-vectors/float-vectors.factor
similarity index 56%
rename from extra/float-vectors/float-vectors.factor
rename to basis/float-vectors/float-vectors.factor
index d51f0d4e44..8e93582f04 100755
--- a/extra/float-vectors/float-vectors.factor
+++ b/basis/float-vectors/float-vectors.factor
@@ -5,25 +5,12 @@ sequences.private growable float-arrays prettyprint.backend
 parser accessors ;
 IN: float-vectors
 
-TUPLE: float-vector underlying fill ;
-
-M: float-vector underlying underlying>> { float-array } declare ;
-
-M: float-vector set-underlying (>>underlying) ;
-
-M: float-vector length fill>> { array-capacity } declare ;
-
-M: float-vector set-fill (>>fill) ;
-
-<PRIVATE
-
-: float-array>vector ( float-array length -- float-vector )
-    float-vector boa ; inline
-
-PRIVATE>
+TUPLE: float-vector
+{ underlying float-array initial: F{ } }
+{ length array-capacity } ;
 
 : <float-vector> ( n -- float-vector )
-    0.0 <float-array> 0 float-array>vector ; inline
+    <float-array> 0 float-vector boa ; inline
 
 : >float-vector ( seq -- float-vector )
     T{ float-vector f F{ } 0 } clone-like ;
@@ -31,11 +18,11 @@ PRIVATE>
 M: float-vector like
     drop dup float-vector? [
         dup float-array?
-        [ dup length float-array>vector ] [ >float-vector ] if
+        [ dup length float-vector boa ] [ >float-vector ] if
     ] unless ;
 
 M: float-vector new-sequence
-    drop [ 0.0 <float-array> ] keep >fixnum float-array>vector ;
+    drop [ <float-array> ] [ >fixnum ] bi float-vector boa ;
 
 M: float-vector equal?
     over float-vector? [ sequence= ] [ 2drop f ] if ;
@@ -47,5 +34,5 @@ INSTANCE: float-vector growable
 : FV{ \ } [ >float-vector ] parse-literal ; parsing
 
 M: float-vector >pprint-sequence ;
-
 M: float-vector pprint-delims drop \ FV{ \ } ;
+M: float-vector pprint* pprint-object ;
diff --git a/extra/float-vectors/summary.txt b/basis/float-vectors/summary.txt
similarity index 100%
rename from extra/float-vectors/summary.txt
rename to basis/float-vectors/summary.txt
diff --git a/extra/disjoint-set/tags.txt b/basis/float-vectors/tags.txt
similarity index 100%
rename from extra/disjoint-set/tags.txt
rename to basis/float-vectors/tags.txt
diff --git a/core/threads/authors.txt b/basis/freetype/authors.txt
similarity index 100%
rename from core/threads/authors.txt
rename to basis/freetype/authors.txt
diff --git a/extra/freetype/freetype.factor b/basis/freetype/freetype.factor
similarity index 91%
rename from extra/freetype/freetype.factor
rename to basis/freetype/freetype.factor
index f34bdc9920..8572a8bd91 100755
--- a/extra/freetype/freetype.factor
+++ b/basis/freetype/freetype.factor
@@ -155,6 +155,16 @@ C-STRUCT: face
     { "face-size*" "size" }
     { "void*" "charmap" } ;
 
+C-STRUCT: FT_Bitmap
+    { "int" "rows" }
+    { "int" "width" }
+    { "int" "pitch" }
+    { "void*" "buffer" }
+    { "short" "num_grays" }
+    { "char" "pixel_mode" }
+    { "char" "palette_mode" }
+    { "void*" "palette" } ;
+
 FUNCTION: FT_Error FT_New_Face ( void* library, FT_Char* font, FT_Long index, face* face ) ;
 
 FUNCTION: FT_Error FT_New_Memory_Face ( void* library, FT_Byte* file_base, FT_Long file_size, FT_Long face_index, FT_Face* aface ) ;
@@ -170,6 +180,15 @@ C-ENUM:
     FT_RENDER_MODE_LCD
     FT_RENDER_MODE_LCD_V ;
 
+C-ENUM:
+    FT_PIXEL_MODE_NONE
+    FT_PIXEL_MODE_MONO
+    FT_PIXEL_MODE_GRAY
+    FT_PIXEL_MODE_GRAY2
+    FT_PIXEL_MODE_GRAY4
+    FT_PIXEL_MODE_LCD
+    FT_PIXEL_MODE_LCD_V ;
+
 FUNCTION: int FT_Render_Glyph ( glyph* slot, int render_mode ) ;
 
 FUNCTION: void FT_Done_Face ( face* face ) ;
@@ -177,3 +196,4 @@ FUNCTION: void FT_Done_Face ( face* face ) ;
 FUNCTION: void FT_Done_FreeType ( void* library ) ;
 
 FUNCTION: FT_Long FT_MulFix ( FT_Long a, FT_Long b ) ;
+
diff --git a/extra/freetype/summary.txt b/basis/freetype/summary.txt
similarity index 100%
rename from extra/freetype/summary.txt
rename to basis/freetype/summary.txt
diff --git a/core/libc/tags.txt b/basis/freetype/tags.txt
similarity index 100%
rename from core/libc/tags.txt
rename to basis/freetype/tags.txt
diff --git a/extra/fry/authors.txt b/basis/fry/authors.txt
similarity index 100%
rename from extra/fry/authors.txt
rename to basis/fry/authors.txt
diff --git a/extra/fry/fry-docs.factor b/basis/fry/fry-docs.factor
similarity index 79%
rename from extra/fry/fry-docs.factor
rename to basis/fry/fry-docs.factor
index 7a444fecbc..05cde62c1f 100755
--- a/extra/fry/fry-docs.factor
+++ b/basis/fry/fry-docs.factor
@@ -19,10 +19,11 @@ HELP: fry
 
 HELP: '[
 { $syntax "code... ]" }
-{ $description "Literal fried quotation. Expands into code which takes values from the stack and substituting them in." } ;
+{ $description "Literal fried quotation. Expands into code which takes values from the stack and substitutes them in place of the fry specifiers " { $link , } " and " { $link @ } "." }
+{ $examples "See " { $link "fry.examples" } "." } ;
 
 ARTICLE: "fry.examples" "Examples of fried quotations"
-"Conceptually, " { $link fry } " is tricky however the general idea is easy to grasp once presented with examples."
+"The easiest way to understand fried quotations is to look at some examples."
 $nl
 "If a quotation does not contain any fry specifiers, then " { $link POSTPONE: '[ } " behaves just like " { $link POSTPONE: [ } ":"
 { $code "{ 10 20 30 } '[ . ] each" }
@@ -38,11 +39,12 @@ $nl
     "{ 10 20 30 } 5 [ 3 ] swap [ / ] curry compose map"
     "{ 10 20 30 } [ 3 5 / ] map"
 }
-"Occurrences of " { $link @ } " are simply syntax sugar for " { $snippet ", call" } ". The following three lines are equivalent:"
+"Occurrences of " { $link @ } " are simply syntax sugar for " { $snippet ", call" } ". The following four lines are equivalent:"
 { $code 
-    "{ 10 20 30 } [ sq ] '[ @ . ] map"
-    "{ 10 20 30 } [ sq ] [ . ] compose map"
-    "{ 10 20 30 } [ sq . ] map"
+    "{ 10 20 30 } [ sq ] '[ @ . ] each"
+    "{ 10 20 30 } [ sq ] [ call . ] curry each"
+    "{ 10 20 30 } [ sq ] [ . ] compose each"
+    "{ 10 20 30 } [ sq . ] each"
 }
 "The " { $link , } " and " { $link @ } " specifiers may be freely mixed:"
 { $code
@@ -50,16 +52,17 @@ $nl
     "{ 8 13 14 27 } [ even? ] 5 [ dup ] swap [ ? ] curry 3compose map"
     "{ 8 13 14 27 } [ even? dup 5 ? ] map"
 }
-"Occurrences of " { $link _ } " have the effect of enclosing all code to their left with " { $link >r } " and " { $link r> } ":"
+"Occurrences of " { $link _ } " have the effect of enclosing all code to their left in a quotation passed to " { $link dip } ". The following four lines are equivalent:"
 { $code 
     "{ 10 20 30 } 1 '[ , _ / ] map"
+    "{ 10 20 30 } 1 [ [ ] curry dip / ] curry map"
     "{ 10 20 30 } 1 [ swap / ] curry map"
     "{ 10 20 30 } [ 1 swap / ] map"
 }
 "For any quotation body " { $snippet "X" } ", the following two are equivalent:"
 { $code
-    "[ >r X r> ]"
-    "[ X _ ]"
+    "[ [ X ] dip ]"
+    "'[ X _ ]"
 }
 "Here are some built-in combinators rewritten in terms of fried quotations:"
 { $table
@@ -73,8 +76,11 @@ $nl
 } ;
 
 ARTICLE: "fry.philosophy" "Fried quotation philosophy"
-"Fried quotations generalize quotation-building words such as " { $link curry } " and " { $link compose } "."
-$nl
+"Fried quotations generalize quotation-building words such as " { $link curry } " and " { $link compose } ". They can clean up code with lots of currying and composition, particularly when quotations are nested:"
+{ $code
+    "'[ [ , key? ] all? ] filter"
+    "[ [ key? ] curry all? ] curry filter"
+}
 "There is a mapping from fried quotations to lexical closures as defined in the " { $vocab-link "locals" } " vocabulary. Namely, a fried quotation is equivalent to a ``let'' form where each local binding is only used once, and bindings are used in the same order in which they are defined. The following two lines are equivalent:"
 { $code
     "'[ 3 , + 4 , / ]"
@@ -87,7 +93,7 @@ $nl
 } ;
 
 ARTICLE: "fry.limitations" "Fried quotation limitations"
-"As with " { $vocab-link "locals" } ", fried quotations cannot contain " { $link >r } " and " { $link r> } "." ;
+"As with " { $vocab-link "locals" } ", fried quotations cannot contain " { $link >r } " and " { $link r> } ". This is not a real limitation in practice, since " { $link dip } " can be used instead." ;
 
 ARTICLE: "fry" "Fried quotations"
 "A " { $emphasis "fried quotation" } " differs from a literal quotation in that when it is evaluated, instead of just pushing itself on the stack, it consumes zero or more stack values and inserts them into the quotation."
diff --git a/extra/fry/fry-tests.factor b/basis/fry/fry-tests.factor
similarity index 100%
rename from extra/fry/fry-tests.factor
rename to basis/fry/fry-tests.factor
diff --git a/extra/fry/fry.factor b/basis/fry/fry.factor
similarity index 62%
rename from extra/fry/fry.factor
rename to basis/fry/fry.factor
index 4581c048fd..2b84d58d06 100755
--- a/extra/fry/fry.factor
+++ b/basis/fry/fry.factor
@@ -1,25 +1,26 @@
 ! Copyright (C) 2008 Slava Pestov, Eduardo Cavazos.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel sequences combinators parser splitting
+USING: kernel sequences combinators parser splitting math
 quotations arrays namespaces qualified ;
 QUALIFIED: namespaces
 IN: fry
 
-: , "Only valid inside a fry" throw ;
-: @ "Only valid inside a fry" throw ;
-: _ "Only valid inside a fry" throw ;
+: , ( -- * ) "Only valid inside a fry" throw ;
+: @ ( -- * ) "Only valid inside a fry" throw ;
+: _ ( -- * ) "Only valid inside a fry" throw ;
 
 DEFER: (shallow-fry)
+DEFER: shallow-fry
 
 : ((shallow-fry)) ( accum quot adder -- result )
-    >r [ ] swap (shallow-fry) r>
-    append swap dup empty? [ drop ] [
+    >r shallow-fry r>
+    append swap [
         [ prepose ] curry append
-    ] if ; inline
+    ] unless-empty ; inline
 
 : (shallow-fry) ( accum quot -- result )
-    dup empty? [
-        drop 1quotation
+    [
+        1quotation
     ] [
         unclip {
             { \ , [ [ curry ] ((shallow-fry)) ] }
@@ -30,33 +31,29 @@ DEFER: (shallow-fry)
 
             [ swap >r suffix r> (shallow-fry) ]
         } case
-    ] if ;
+    ] if-empty ;
 
 : shallow-fry ( quot -- quot' ) [ ] swap (shallow-fry) ;
 
-: deep-fry ( quot -- quot' )
-    { _ } last-split1 [
-        [
-            shallow-fry %
-            [ >r ] %
-            deep-fry %
-            [ [ dip ] curry r> compose ] %
-        ] [ ] make
+: deep-fry ( quot -- quot )
+    { _ } last-split1 dup [
+      shallow-fry [ >r ] rot
+      deep-fry    [ [ dip ] curry r> compose ] 4array concat
     ] [
-        shallow-fry
-    ] if* ;
+        drop shallow-fry
+    ] if ;
 
 : fry-specifier? ( obj -- ? ) { , namespaces:, @ } member? ;
 
 : count-inputs ( quot -- n )
     [
         {
-            { [ dup callable? ] [ count-inputs ] }
-            { [ dup fry-specifier? ] [ drop 1 ] }
-            [ drop 0 ]
+            { [ dup callable?      ] [ count-inputs ] }
+            { [ dup fry-specifier? ] [ drop 1       ] }
+                                     [ drop 0       ]
         } cond
     ] map sum ;
-
+    
 : fry ( quot -- quot' )
     [
         [
diff --git a/extra/fry/summary.txt b/basis/fry/summary.txt
similarity index 100%
rename from extra/fry/summary.txt
rename to basis/fry/summary.txt
diff --git a/extra/fry/tags.txt b/basis/fry/tags.txt
similarity index 100%
rename from extra/fry/tags.txt
rename to basis/fry/tags.txt
diff --git a/extra/furnace/actions/actions-tests.factor b/basis/furnace/actions/actions-tests.factor
similarity index 63%
rename from extra/furnace/actions/actions-tests.factor
rename to basis/furnace/actions/actions-tests.factor
index 8aa0f92b97..60a526fb24 100755
--- a/extra/furnace/actions/actions-tests.factor
+++ b/basis/furnace/actions/actions-tests.factor
@@ -21,3 +21,21 @@ blah
     init-request
     { } "action-1" get call-responder
 ] unit-test
+
+<action>
+    "a" >>rest
+    [ "a" param string>number sq ] >>display
+"action-2" set
+
+STRING: action-request-test-2
+GET http://foo/bar/123 HTTP/1.1
+
+blah
+;
+
+[ 25 ] [
+    action-request-test-2 lf>crlf
+    [ read-request ] with-string-reader
+    init-request
+    { "5" } "action-2" get call-responder
+] unit-test
diff --git a/basis/furnace/actions/actions.factor b/basis/furnace/actions/actions.factor
new file mode 100755
index 0000000000..1370ae95b2
--- /dev/null
+++ b/basis/furnace/actions/actions.factor
@@ -0,0 +1,136 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors sequences kernel assocs combinators
+validators http hashtables namespaces fry continuations locals
+io arrays math boxes splitting urls
+xml.entities
+http.server
+http.server.responses
+furnace
+furnace.redirection
+furnace.conversations
+html.forms
+html.elements
+html.components
+html.components
+html.templates.chloe
+html.templates.chloe.syntax ;
+IN: furnace.actions
+
+SYMBOL: params
+
+SYMBOL: rest
+
+: render-validation-messages ( -- )
+    form get errors>>
+    [
+        <ul "errors" =class ul>
+            [ <li> escape-string write </li> ] each
+        </ul>
+    ] unless-empty ;
+
+CHLOE: validation-messages drop render-validation-messages ;
+
+TUPLE: action rest authorize init display validate submit ;
+
+: new-action ( class -- action )
+    new [ ] >>init [ ] >>validate [ ] >>authorize ; inline
+
+: <action> ( -- action )
+    action new-action ;
+
+: merge-forms ( form -- )
+    form get
+    [ [ errors>> ] bi@ push-all ]
+    [ [ values>> ] bi@ swap update ]
+    [ swap validation-failed>> >>validation-failed drop ]
+    2tri ;
+
+: set-nested-form ( form name -- )
+    [
+        merge-forms
+    ] [
+        unclip [ set-nested-form ] nest-form
+    ] if-empty ;
+
+: restore-validation-errors ( -- )
+    form cget [
+        nested-forms cget set-nested-form
+    ] when* ;
+
+: handle-get ( action -- response )
+    '[
+        , dup display>> [
+            {
+                [ init>> call ]
+                [ authorize>> call ]
+                [ drop restore-validation-errors ]
+                [ display>> call ]
+            } cleave
+        ] [ drop <400> ] if
+    ] with-exit-continuation ;
+
+: param ( name -- value )
+    params get at ;
+
+: revalidate-url-key "__u" ;
+
+: revalidate-url ( -- url/f )
+    revalidate-url-key param
+    dup [ >url [ same-host? ] keep and ] when ;
+
+: validation-failed ( -- * )
+    post-request? revalidate-url and [
+        begin-conversation
+        nested-forms-key param " " split harvest nested-forms cset
+        form get form cset
+        <redirect>
+    ] [ <400> ] if*
+    exit-with ;
+
+: handle-post ( action -- response )
+    '[
+        , dup submit>> [
+            [ validate>> call ]
+            [ authorize>> call ]
+            [ submit>> call ]
+            tri
+        ] [ drop <400> ] if
+    ] with-exit-continuation ;
+
+: handle-rest ( path action -- assoc )
+    rest>> dup [ [ "/" join ] dip associate ] [ 2drop f ] if ;
+
+: init-action ( path action -- )
+    begin-form
+    handle-rest
+    request get request-params assoc-union params set ;
+
+M: action call-responder* ( path action -- response )
+    [ init-action ] keep
+    request get method>> {
+        { "GET" [ handle-get ] }
+        { "HEAD" [ handle-get ] }
+        { "POST" [ handle-post ] }
+    } case ;
+
+M: action modify-form
+    drop url get revalidate-url-key hidden-form-field ;
+
+: check-validation ( -- )
+    validation-failed? [ validation-failed ] when ;
+
+: validate-params ( validators -- )
+    params get swap validate-values check-validation ;
+
+: validate-integer-id ( -- )
+    { { "id" [ v-number ] } } validate-params ;
+
+TUPLE: page-action < action template ;
+
+: <chloe-content> ( path -- response )
+    resolve-template-path <chloe> "text/html" <content> ;
+
+: <page-action> ( -- page )
+    page-action new-action
+        dup '[ , template>> <chloe-content> ] >>display ;
diff --git a/basis/furnace/alloy/alloy.factor b/basis/furnace/alloy/alloy.factor
new file mode 100644
index 0000000000..29cb37b557
--- /dev/null
+++ b/basis/furnace/alloy/alloy.factor
@@ -0,0 +1,30 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences db.tuples alarms calendar db fry
+furnace.db
+furnace.cache
+furnace.referrer
+furnace.sessions
+furnace.conversations
+furnace.auth.providers
+furnace.auth.login.permits ;
+IN: furnace.alloy
+
+: <alloy> ( responder db params -- responder' )
+    '[
+        <conversations>
+        <sessions>
+        , , <db-persistence>
+        <check-form-submissions>
+    ] call ;
+
+: state-classes { session conversation permit } ; inline
+
+: init-furnace-tables ( -- )
+    state-classes ensure-tables
+    user ensure-table ;
+
+: start-expiring ( db params -- )
+    '[
+        , , [ state-classes [ expire-state ] each ] with-db
+    ] 5 minutes every drop ;
diff --git a/basis/furnace/auth/auth-tests.factor b/basis/furnace/auth/auth-tests.factor
new file mode 100644
index 0000000000..220a8cd04c
--- /dev/null
+++ b/basis/furnace/auth/auth-tests.factor
@@ -0,0 +1,6 @@
+USING: furnace.auth tools.test ;
+IN: furnace.auth.tests
+
+\ logged-in-username must-infer
+\ <protected> must-infer
+\ new-realm must-infer
diff --git a/basis/furnace/auth/auth.factor b/basis/furnace/auth/auth.factor
new file mode 100755
index 0000000000..54e936a313
--- /dev/null
+++ b/basis/furnace/auth/auth.factor
@@ -0,0 +1,166 @@
+! Copyright (c) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs namespaces kernel sequences sets
+destructors combinators fry logging
+io.encodings.utf8 io.encodings.string io.binary random
+checksums checksums.sha2
+html.forms
+http.server
+http.server.filters
+http.server.dispatchers
+furnace
+furnace.actions
+furnace.redirection
+furnace.boilerplate
+furnace.auth.providers
+furnace.auth.providers.db ;
+IN: furnace.auth
+
+SYMBOL: logged-in-user
+
+: logged-in? ( -- ? )
+    logged-in-user get >boolean ;
+
+: username ( -- string/f )
+    logged-in-user get dup [ username>> ] when ;
+
+GENERIC: init-user-profile ( responder -- )
+
+M: object init-user-profile drop ;
+
+M: dispatcher init-user-profile
+    default>> init-user-profile ;
+
+M: filter-responder init-user-profile
+    responder>> init-user-profile ;
+
+: profile ( -- assoc ) logged-in-user get profile>> ;
+
+: user-changed ( -- )
+    logged-in-user get t >>changed? drop ;
+
+: uget ( key -- value )
+    profile at ;
+
+: uset ( value key -- )
+    profile set-at
+    user-changed ;
+
+: uchange ( quot key -- )
+    profile swap change-at
+    user-changed ; inline
+
+SYMBOL: capabilities
+
+V{ } clone capabilities set-global
+
+: define-capability ( word -- ) capabilities get adjoin ;
+
+TUPLE: realm < dispatcher name users checksum secure ;
+
+GENERIC: login-required* ( description capabilities realm -- response )
+
+GENERIC: init-realm ( realm -- )
+
+GENERIC: logged-in-username ( realm -- username )
+
+: login-required ( description capabilities -- * )
+    realm get login-required* exit-with ;
+
+: new-realm ( responder name class -- realm )
+    new-dispatcher
+        swap >>name
+        swap >>default
+        users-in-db >>users
+        sha-256 >>checksum
+        t >>secure ; inline
+
+: users ( -- provider )
+    realm get users>> ;
+
+TUPLE: user-saver user ;
+
+C: <user-saver> user-saver
+
+M: user-saver dispose
+    user>> dup changed?>> [ users update-user ] [ drop ] if ;
+
+: save-user-after ( user -- )
+    <user-saver> &dispose drop ;
+
+: init-user ( user -- )
+    [ [ logged-in-user set ] [ save-user-after ] bi ] when* ;
+
+\ init-user DEBUG add-input-logging
+
+M: realm call-responder* ( path responder -- response )
+    dup realm set
+    logged-in? [
+        dup init-realm
+        dup logged-in-username
+        dup [ users get-user ] when
+        init-user
+    ] unless
+    call-next-method ;
+
+: encode-password ( string salt -- bytes )
+    [ utf8 encode ] [ 4 >be ] bi* append
+    realm get checksum>> checksum-bytes ;
+
+: >>encoded-password ( user string -- user )
+    32 random-bits [ encode-password ] keep
+    [ >>password ] [ >>salt ] bi* ; inline
+
+: valid-login? ( password user -- ? )
+    [ salt>> encode-password ] [ password>> ] bi = ;
+
+: check-login ( password username -- user/f )
+    users get-user dup [ [ valid-login? ] keep and ] [ 2drop f ] if ;
+
+: if-secure-realm ( quot -- )
+    realm get secure>> [ if-secure ] [ call ] if ; inline
+
+TUPLE: secure-realm-only < filter-responder ;
+
+C: <secure-realm-only> secure-realm-only
+
+M: secure-realm-only call-responder*
+    '[ , , call-next-method ] if-secure-realm ;
+
+TUPLE: protected < filter-responder description capabilities ;
+
+: <protected> ( responder -- protected )
+    protected new
+        swap >>responder ;
+
+: have-capabilities? ( capabilities -- ? )
+    realm get secure>> secure-connection? not and [ drop f ] [
+        logged-in-user get {
+            { [ dup not ] [ 2drop f ] }
+            { [ dup deleted>> 1 = ] [ 2drop f ] }
+            [ capabilities>> subset? ]
+        } cond
+    ] if ;
+
+M: protected call-responder* ( path responder -- response )
+    dup protected set
+    dup capabilities>> have-capabilities?
+    [ call-next-method ] [
+        [ drop ] [ [ description>> ] [ capabilities>> ] bi ] bi*
+        realm get login-required*
+    ] if ;
+
+: <auth-boilerplate> ( responder -- responder' )
+    <boilerplate> { realm "boilerplate" } >>template ;
+
+: password-mismatch ( -- * )
+    "passwords do not match" validation-error
+    validation-failed ;
+
+: same-password-twice ( -- )
+    "new-password" value "verify-password" value =
+    [ password-mismatch ] unless ;
+
+: user-exists ( -- * )
+    "username taken" validation-error
+    validation-failed ;
diff --git a/basis/furnace/auth/basic/basic.factor b/basis/furnace/auth/basic/basic.factor
new file mode 100755
index 0000000000..ff3c302b40
--- /dev/null
+++ b/basis/furnace/auth/basic/basic.factor
@@ -0,0 +1,29 @@
+! Copyright (c) 2007 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel splitting base64 namespaces strings
+http http.server.responses furnace.auth ;
+IN: furnace.auth.basic
+
+TUPLE: basic-auth-realm < realm ;
+
+: <basic-auth-realm> ( responder name -- realm )
+    basic-auth-realm new-realm ;
+
+: parse-basic-auth ( header -- username/f password/f )
+    dup [
+        " " split1 swap "Basic" = [
+            base64> >string ":" split1
+        ] [ drop f f ] if
+    ] [ drop f f ] if ;
+
+: <401> ( realm -- response )
+    401 "Invalid username or password" <trivial-response>
+    [ "Basic realm=\"" % swap % "\"" % ] "" make "WWW-Authenticate" set-header ;
+
+M: basic-auth-realm login-required* ( description capabilities realm -- response )
+    2nip name>> <401> ;
+
+M: basic-auth-realm logged-in-username ( realm -- uid )
+    drop
+    request get "authorization" header parse-basic-auth
+    dup [ over check-login swap and ] [ 2drop f ] if ;
diff --git a/extra/furnace/auth/login/boilerplate.xml b/basis/furnace/auth/boilerplate.xml
similarity index 100%
rename from extra/furnace/auth/login/boilerplate.xml
rename to basis/furnace/auth/boilerplate.xml
diff --git a/basis/furnace/auth/features/deactivate-user/deactivate-user.factor b/basis/furnace/auth/features/deactivate-user/deactivate-user.factor
new file mode 100644
index 0000000000..43560d021c
--- /dev/null
+++ b/basis/furnace/auth/features/deactivate-user/deactivate-user.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel assocs namespaces accessors db db.tuples urls
+http.server.dispatchers
+furnace.conversations
+furnace.actions
+furnace.auth
+furnace.auth.providers ;
+IN: furnace.auth.features.deactivate-user
+
+: <deactivate-user-action> ( -- action )
+    <action>
+        [
+            logged-in-user get
+                1 >>deleted
+                t >>changed?
+            drop
+            URL" $realm" end-aside
+        ] >>submit ;
+    
+: allow-deactivation ( realm -- realm )
+    <deactivate-user-action> <protected>
+        "delete your profile" >>description
+    "deactivate-user" add-responder ;
+
+: allow-deactivation? ( -- ? )
+    realm get responders>> "deactivate-user" swap key? ;
diff --git a/basis/furnace/auth/features/edit-profile/edit-profile-tests.factor b/basis/furnace/auth/features/edit-profile/edit-profile-tests.factor
new file mode 100644
index 0000000000..d0fdf22c27
--- /dev/null
+++ b/basis/furnace/auth/features/edit-profile/edit-profile-tests.factor
@@ -0,0 +1,4 @@
+IN: furnace.auth.features.edit-profile.tests
+USING: tools.test furnace.auth.features.edit-profile ;
+
+\ allow-edit-profile must-infer
diff --git a/basis/furnace/auth/features/edit-profile/edit-profile.factor b/basis/furnace/auth/features/edit-profile/edit-profile.factor
new file mode 100644
index 0000000000..e6d85809b9
--- /dev/null
+++ b/basis/furnace/auth/features/edit-profile/edit-profile.factor
@@ -0,0 +1,65 @@
+! Copyright (c) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors namespaces sequences assocs
+validators urls html.forms http.server.dispatchers
+furnace.auth
+furnace.actions
+furnace.conversations ;
+IN: furnace.auth.features.edit-profile
+
+: <edit-profile-action> ( -- action )
+    <page-action>
+        [
+            logged-in-user get
+            [ username>> "username" set-value ]
+            [ realname>> "realname" set-value ]
+            [ email>> "email" set-value ]
+            tri
+        ] >>init
+
+        { realm "features/edit-profile/edit-profile" } >>template
+
+        [
+            username "username" set-value
+
+            {
+                { "realname" [ [ v-one-line ] v-optional ] }
+                { "password" [ ] }
+                { "new-password" [ [ v-password ] v-optional ] }
+                { "verify-password" [ [ v-password ] v-optional ] } 
+                { "email" [ [ v-email ] v-optional ] }
+            } validate-params
+
+            { "password" "new-password" "verify-password" }
+            [ value empty? not ] contains? [
+                "password" value username check-login
+                [ "incorrect password" validation-error ] unless
+
+                same-password-twice
+            ] when
+        ] >>validate
+
+        [
+            logged-in-user get
+
+            "new-password" value
+            [ >>encoded-password ] unless-empty
+
+            "realname" value >>realname
+            "email" value >>email
+
+            t >>changed?
+
+            drop
+
+            URL" $realm" end-aside
+        ] >>submit
+
+    <protected>
+        "edit your profile" >>description ;
+
+: allow-edit-profile ( login -- login )
+    <edit-profile-action> <auth-boilerplate> "edit-profile" add-responder ;
+
+: allow-edit-profile? ( -- ? )
+    realm get responders>> "edit-profile" swap key? ;
diff --git a/extra/furnace/auth/login/edit-profile.xml b/basis/furnace/auth/features/edit-profile/edit-profile.xml
similarity index 86%
rename from extra/furnace/auth/login/edit-profile.xml
rename to basis/furnace/auth/features/edit-profile/edit-profile.xml
index 6beaf5de6d..a9d7994e97 100644
--- a/extra/furnace/auth/login/edit-profile.xml
+++ b/basis/furnace/auth/features/edit-profile/edit-profile.xml
@@ -4,7 +4,7 @@
 
 	<t:title>Edit Profile</t:title>
 
-	<t:form t:action="$login/edit-profile">
+	<t:form t:action="$realm/edit-profile">
 
 	<table>
 	
@@ -67,4 +67,7 @@
 
 	</t:form>
 	
+	<t:if t:code="furnace.auth.features.deactivate-user:allow-deactivation?">
+		<t:button t:action="$realm/deactivate-user">Delete User</t:button>
+	</t:if>
 </t:chloe>
diff --git a/extra/furnace/auth/login/recover-1.xml b/basis/furnace/auth/features/recover-password/recover-1.xml
similarity index 94%
rename from extra/furnace/auth/login/recover-1.xml
rename to basis/furnace/auth/features/recover-password/recover-1.xml
index 21fbe6fd39..46e52d5319 100644
--- a/extra/furnace/auth/login/recover-1.xml
+++ b/basis/furnace/auth/features/recover-password/recover-1.xml
@@ -6,7 +6,7 @@
 
 	<p>Enter the username and e-mail address you used to register for this site, and you will receive a link for activating a new password.</p>
 
-	<t:form t:action="recover-password">
+	<t:form t:action="$realm/recover-password">
 
 		<table>
 
diff --git a/extra/furnace/auth/login/recover-2.xml b/basis/furnace/auth/features/recover-password/recover-2.xml
similarity index 100%
rename from extra/furnace/auth/login/recover-2.xml
rename to basis/furnace/auth/features/recover-password/recover-2.xml
diff --git a/extra/furnace/auth/login/recover-3.xml b/basis/furnace/auth/features/recover-password/recover-3.xml
similarity index 94%
rename from extra/furnace/auth/login/recover-3.xml
rename to basis/furnace/auth/features/recover-password/recover-3.xml
index 2e412d1f18..a71118ea31 100644
--- a/extra/furnace/auth/login/recover-3.xml
+++ b/basis/furnace/auth/features/recover-password/recover-3.xml
@@ -6,7 +6,7 @@
 
 	<p>Choose a new password for your account.</p>
 
-	<t:form t:action="new-password">
+	<t:form t:action="$realm/recover-3">
 
 		<table>
 
diff --git a/extra/furnace/auth/login/recover-4.xml b/basis/furnace/auth/features/recover-password/recover-4.xml
similarity index 60%
rename from extra/furnace/auth/login/recover-4.xml
rename to basis/furnace/auth/features/recover-password/recover-4.xml
index f5d02fa858..d71a01bc25 100755
--- a/extra/furnace/auth/login/recover-4.xml
+++ b/basis/furnace/auth/features/recover-password/recover-4.xml
@@ -4,6 +4,6 @@
 
 	<t:title>Recover lost password: step 4 of 4</t:title>
 
-	<p>Your password has been reset. You may now <t:a t:href="login">log in</t:a>.</p>
+	<p>Your password has been reset. You may now <t:a t:href="$realm">proceed</t:a>.</p>
 
 </t:chloe>
diff --git a/basis/furnace/auth/features/recover-password/recover-password-tests.factor b/basis/furnace/auth/features/recover-password/recover-password-tests.factor
new file mode 100644
index 0000000000..b589c52624
--- /dev/null
+++ b/basis/furnace/auth/features/recover-password/recover-password-tests.factor
@@ -0,0 +1,4 @@
+IN: furnace.auth.features.recover-password
+USING: tools.test furnace.auth.features.recover-password ;
+
+\ allow-password-recovery must-infer
diff --git a/basis/furnace/auth/features/recover-password/recover-password.factor b/basis/furnace/auth/features/recover-password/recover-password.factor
new file mode 100644
index 0000000000..77915f1083
--- /dev/null
+++ b/basis/furnace/auth/features/recover-password/recover-password.factor
@@ -0,0 +1,124 @@
+! Copyright (c) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces accessors kernel assocs arrays io.sockets threads
+fry urls smtp validators html.forms present
+http http.server.responses http.server.redirection
+http.server.dispatchers
+furnace furnace.actions furnace.auth furnace.auth.providers
+furnace.redirection ;
+IN: furnace.auth.features.recover-password
+
+SYMBOL: lost-password-from
+
+: current-host ( -- string )
+    url get host>> host-name or ;
+
+: new-password-url ( user -- url )
+    URL" recover-3" clone
+        swap
+        [ username>> "username" set-query-param ]
+        [ ticket>> "ticket" set-query-param ]
+        bi
+    adjust-url relative-to-request ;
+
+: password-email ( user -- email )
+    <email>
+        [ "[ " % current-host % " ] password recovery" % ] "" make >>subject
+        lost-password-from get >>from
+        over email>> 1array >>to
+        [
+            "This e-mail was sent by the application server on " % current-host % "\n" %
+            "because somebody, maybe you, clicked on a ``recover password'' link in the\n" %
+            "login form, and requested a new password for the user named ``" %
+            over username>> % "''.\n" %
+            "\n" %
+            "If you believe that this request was legitimate, you may click the below link in\n" %
+            "your browser to set a new password for your account:\n" %
+            "\n" %
+            swap new-password-url present %
+            "\n\n" %
+            "Love,\n" %
+            "\n" %
+            "  FactorBot\n" %
+        ] "" make >>body ;
+
+: send-password-email ( user -- )
+    '[ , password-email send-email ]
+    "E-mail send thread" spawn drop ;
+
+: <recover-action-1> ( -- action )
+    <page-action>
+        { realm "features/recover-password/recover-1" } >>template
+
+        [
+            {
+                { "username" [ v-username ] }
+                { "email" [ v-email ] }
+                { "captcha" [ v-captcha ] }
+            } validate-params
+        ] >>validate
+
+        [
+            "email" value "username" value
+            users issue-ticket [
+                send-password-email
+            ] when*
+
+            URL" $realm/recover-2" <redirect>
+        ] >>submit ;
+
+: <recover-action-2> ( -- action )
+    <page-action>
+        { realm "features/recover-password/recover-2" } >>template ;
+
+: <recover-action-3> ( -- action )
+    <page-action>
+        [
+            {
+                { "username" [ v-username ] }
+                { "ticket" [ v-required ] }
+            } validate-params
+        ] >>init
+
+        { realm "features/recover-password/recover-3" } >>template
+
+        [
+            {
+                { "username" [ v-username ] }
+                { "ticket" [ v-required ] }
+                { "new-password" [ v-password ] }
+                { "verify-password" [ v-password ] }
+            } validate-params
+
+            same-password-twice
+        ] >>validate
+
+        [
+            "ticket" value
+            "username" value
+            users claim-ticket [
+                "new-password" value >>encoded-password
+                users update-user
+
+                URL" $realm/recover-4" <redirect>
+            ] [
+                <403>
+            ] if*
+        ] >>submit ;
+
+: <recover-action-4> ( -- action )
+    <page-action>
+        { realm "features/recover-password/recover-4" } >>template ;
+
+: allow-password-recovery ( login -- login )
+    <recover-action-1> <auth-boilerplate>
+        "recover-password" add-responder
+    <recover-action-2> <auth-boilerplate>
+        "recover-2" add-responder
+    <recover-action-3> <auth-boilerplate>
+        "recover-3" add-responder
+    <recover-action-4> <auth-boilerplate>
+        "recover-4" add-responder ;
+
+: allow-password-recovery? ( -- ? )
+    realm get responders>> "recover-password" swap key? ;
diff --git a/extra/furnace/auth/login/register.xml b/basis/furnace/auth/features/registration/register.xml
similarity index 100%
rename from extra/furnace/auth/login/register.xml
rename to basis/furnace/auth/features/registration/register.xml
diff --git a/basis/furnace/auth/features/registration/registration-tests.factor b/basis/furnace/auth/features/registration/registration-tests.factor
new file mode 100644
index 0000000000..e770f35586
--- /dev/null
+++ b/basis/furnace/auth/features/registration/registration-tests.factor
@@ -0,0 +1,4 @@
+IN: furnace.auth.features.registration.tests
+USING: tools.test furnace.auth.features.registration ;
+
+\ allow-registration must-infer
diff --git a/basis/furnace/auth/features/registration/registration.factor b/basis/furnace/auth/features/registration/registration.factor
new file mode 100644
index 0000000000..da58e2b2ed
--- /dev/null
+++ b/basis/furnace/auth/features/registration/registration.factor
@@ -0,0 +1,46 @@
+! Copyright (c) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs kernel namespaces validators html.forms urls
+http.server.dispatchers
+furnace furnace.auth furnace.auth.providers furnace.actions
+furnace.redirection ;
+IN: furnace.auth.features.registration
+
+: <register-action> ( -- action )
+    <page-action>
+        { realm "features/registration/register" } >>template
+
+        [
+            {
+                { "username" [ v-username ] }
+                { "realname" [ [ v-one-line ] v-optional ] }
+                { "new-password" [ v-password ] }
+                { "verify-password" [ v-password ] }
+                { "email" [ [ v-email ] v-optional ] }
+                { "captcha" [ v-captcha ] }
+            } validate-params
+
+            same-password-twice
+        ] >>validate
+
+        [
+            "username" value <user>
+                "realname" value >>realname
+                "new-password" value >>encoded-password
+                "email" value >>email
+                H{ } clone >>profile
+
+            users new-user [ user-exists ] unless*
+
+            realm get init-user-profile
+
+            URL" $realm" <redirect>
+        ] >>submit
+    <auth-boilerplate>
+    <secure-realm-only> ;
+
+: allow-registration ( login -- login )
+    <register-action> "register" add-responder ;
+
+: allow-registration? ( -- ? )
+    realm get responders>> "register" swap key? ;
diff --git a/basis/furnace/auth/login/login-tests.factor b/basis/furnace/auth/login/login-tests.factor
new file mode 100755
index 0000000000..64f7bd3b96
--- /dev/null
+++ b/basis/furnace/auth/login/login-tests.factor
@@ -0,0 +1,4 @@
+IN: furnace.auth.login.tests
+USING: tools.test furnace.auth.login ;
+
+\ <login-realm> must-infer
diff --git a/basis/furnace/auth/login/login.factor b/basis/furnace/auth/login/login.factor
new file mode 100755
index 0000000000..1a4477023d
--- /dev/null
+++ b/basis/furnace/auth/login/login.factor
@@ -0,0 +1,104 @@
+! Copyright (c) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors namespaces sequences math.parser
+calendar validators urls logging html.forms
+http http.server http.server.dispatchers
+furnace
+furnace.auth
+furnace.actions
+furnace.sessions
+furnace.utilities
+furnace.redirection
+furnace.conversations
+furnace.auth.login.permits ;
+IN: furnace.auth.login
+
+SYMBOL: permit-id
+
+: permit-id-key ( realm -- string )
+    [ >hex 2 CHAR: 0 pad-left ] { } map-as concat
+    "__p_" prepend ;
+
+: client-permit-id ( realm -- id/f )
+    permit-id-key client-state dup [ string>number ] when ;
+
+TUPLE: login-realm < realm timeout domain ;
+
+M: login-realm init-realm
+    name>> client-permit-id permit-id set ;
+
+M: login-realm logged-in-username
+    drop permit-id get dup [ get-permit-uid ] when ;
+
+M: login-realm modify-form ( responder -- )
+    drop permit-id get realm get name>> permit-id-key hidden-form-field ;
+
+: <permit-cookie> ( -- cookie )
+    permit-id get realm get name>> permit-id-key <cookie>
+        "$login-realm" resolve-base-path >>path
+        realm get
+        [ domain>> >>domain ]
+        [ secure>> >>secure ]
+        bi ;
+
+: put-permit-cookie ( response -- response' )
+    <permit-cookie> put-cookie ;
+
+\ put-permit-cookie DEBUG add-input-logging
+
+: successful-login ( user -- response )
+    [ username>> make-permit permit-id set ] [ init-user ] bi
+    URL" $realm" end-aside
+    put-permit-cookie ;
+
+\ successful-login DEBUG add-input-logging
+
+: logout ( -- )
+    permit-id get [ delete-permit ] when*
+    URL" $realm" end-aside ;
+
+SYMBOL: description
+SYMBOL: capabilities
+
+: flashed-variables { description capabilities } ;
+
+: login-failed ( -- * )
+    "invalid username or password" validation-error
+    validation-failed ;
+
+: <login-action> ( -- action )
+    <page-action>
+        [
+            description cget "description" set-value
+            capabilities cget words>strings "capabilities" set-value
+        ] >>init
+
+        { login-realm "login" } >>template
+
+        [
+            {
+                { "username" [ v-required ] }
+                { "password" [ v-required ] }
+            } validate-params
+
+            "password" value
+            "username" value check-login
+            [ successful-login ] [ login-failed ] if*
+        ] >>submit
+    <auth-boilerplate>
+    <secure-realm-only> ;
+
+: <logout-action> ( -- action )
+    <action>
+        [ logout ] >>submit ;
+
+M: login-realm login-required* ( description capabilities login -- response )
+    begin-aside
+    [ description cset ] [ capabilities cset ] [ drop ] tri*
+    URL" $realm/login" >secure-url <redirect> ;
+
+: <login-realm> ( responder name -- auth )
+    login-realm new-realm
+        <login-action> "login" add-responder
+        <logout-action> "logout" add-responder
+        20 minutes >>timeout ;
diff --git a/extra/furnace/auth/login/login.xml b/basis/furnace/auth/login/login.xml
similarity index 57%
rename from extra/furnace/auth/login/login.xml
rename to basis/furnace/auth/login/login.xml
index a52aed59d7..81f9520e76 100644
--- a/extra/furnace/auth/login/login.xml
+++ b/basis/furnace/auth/login/login.xml
@@ -4,6 +4,19 @@
 
 	<t:title>Login</t:title>
 
+	<t:if t:value="description">
+		<p>You must log in to <t:label t:name="description" />.</p>
+	</t:if>
+
+	<t:if t:value="capabilities">
+		<p>Your user must have the following capabilities:</p>
+		<ul>
+			<t:each t:name="capabilities">
+				<li><t:label t:name="value" /></li>
+			</t:each>
+		</ul>
+	</t:if>
+
 	<t:form t:action="login">
 
 		<table>
@@ -30,11 +43,11 @@
 	</t:form>
 
 	<p>
-		<t:if t:code="furnace.auth.login:allow-registration?">
+		<t:if t:code="furnace.auth.features.registration:allow-registration?">
 			<t:a t:href="register">Register</t:a>
 		</t:if>
 		|
-		<t:if t:code="furnace.auth.login:allow-password-recovery?">
+		<t:if t:code="furnace.auth.features.recover-password:allow-password-recovery?">
 			<t:a t:href="recover-password">Recover Password</t:a>
 		</t:if>
 	</p>
diff --git a/basis/furnace/auth/login/permits/permits.factor b/basis/furnace/auth/login/permits/permits.factor
new file mode 100644
index 0000000000..1a9784f147
--- /dev/null
+++ b/basis/furnace/auth/login/permits/permits.factor
@@ -0,0 +1,30 @@
+USING: accessors namespaces kernel combinators.short-circuit
+db.tuples db.types furnace.auth furnace.sessions furnace.cache ;
+
+IN: furnace.auth.login.permits
+
+TUPLE: permit < server-state session uid ;
+
+permit "PERMITS" {
+    { "session" "SESSION" BIG-INTEGER +not-null+ }
+    { "uid" "UID" { VARCHAR 255 } +not-null+ }
+} define-persistent
+
+: touch-permit ( permit -- )
+    realm get touch-state ;
+
+: get-permit-uid ( id -- uid )
+    permit get-state {
+        [ ]
+        [ session>> session get id>> = ]
+        [ [ touch-permit ] [ uid>> ] bi ]
+    } 1&& ;
+
+: make-permit ( uid -- id )
+    permit new
+        swap >>uid
+        session get id>> >>session
+    [ touch-permit ] [ insert-tuple ] [ id>> ] tri ;
+                                                                    
+: delete-permit ( id -- )
+    permit new-server-state delete-tuples ;
diff --git a/extra/furnace/auth/providers/assoc/assoc-tests.factor b/basis/furnace/auth/providers/assoc/assoc-tests.factor
similarity index 85%
rename from extra/furnace/auth/providers/assoc/assoc-tests.factor
rename to basis/furnace/auth/providers/assoc/assoc-tests.factor
index 8f9eeaa7a5..8fe1dd4dd4 100755
--- a/extra/furnace/auth/providers/assoc/assoc-tests.factor
+++ b/basis/furnace/auth/providers/assoc/assoc-tests.factor
@@ -1,11 +1,11 @@
 IN: furnace.auth.providers.assoc.tests
-USING: furnace.actions furnace.auth.providers 
+USING: furnace.actions furnace.auth furnace.auth.providers 
 furnace.auth.providers.assoc furnace.auth.login
 tools.test namespaces accessors kernel ;
 
-<action> <login>
+<action> "Test" <login-realm>
     <users-in-memory> >>users
-login set
+realm set
 
 [ t ] [
     "slava" <user>
diff --git a/extra/furnace/auth/providers/assoc/assoc.factor b/basis/furnace/auth/providers/assoc/assoc.factor
similarity index 100%
rename from extra/furnace/auth/providers/assoc/assoc.factor
rename to basis/furnace/auth/providers/assoc/assoc.factor
diff --git a/extra/furnace/auth/providers/db/db-tests.factor b/basis/furnace/auth/providers/db/db-tests.factor
similarity index 89%
rename from extra/furnace/auth/providers/db/db-tests.factor
rename to basis/furnace/auth/providers/db/db-tests.factor
index 714dcb416f..fac5c23e4a 100755
--- a/extra/furnace/auth/providers/db/db-tests.factor
+++ b/basis/furnace/auth/providers/db/db-tests.factor
@@ -1,20 +1,19 @@
 IN: furnace.auth.providers.db.tests
 USING: furnace.actions
+furnace.auth
 furnace.auth.login
 furnace.auth.providers
 furnace.auth.providers.db tools.test
 namespaces db db.sqlite db.tuples continuations
 io.files accessors kernel ;
 
-<action> <login>
-    users-in-db >>users
-login set
+<action> "test" <login-realm> realm set
 
 [ "auth-test.db" temp-file delete-file ] ignore-errors
 
 "auth-test.db" temp-file sqlite-db [
 
-    init-users-table
+    user ensure-table
 
     [ t ] [
         "slava" <user>
diff --git a/extra/furnace/auth/providers/db/db.factor b/basis/furnace/auth/providers/db/db.factor
similarity index 96%
rename from extra/furnace/auth/providers/db/db.factor
rename to basis/furnace/auth/providers/db/db.factor
index 90306e5181..72eb0d462a 100755
--- a/extra/furnace/auth/providers/db/db.factor
+++ b/basis/furnace/auth/providers/db/db.factor
@@ -18,8 +18,6 @@ user "USERS"
     { "deleted" "DELETED" INTEGER +not-null+ }
 } define-persistent
 
-: init-users-table user ensure-table ;
-
 SINGLETON: users-in-db
 
 M: users-in-db get-user
diff --git a/extra/furnace/auth/providers/null/null.factor b/basis/furnace/auth/providers/null/null.factor
similarity index 100%
rename from extra/furnace/auth/providers/null/null.factor
rename to basis/furnace/auth/providers/null/null.factor
diff --git a/extra/furnace/auth/providers/providers.factor b/basis/furnace/auth/providers/providers.factor
similarity index 100%
rename from extra/furnace/auth/providers/providers.factor
rename to basis/furnace/auth/providers/providers.factor
diff --git a/basis/furnace/boilerplate/boilerplate.factor b/basis/furnace/boilerplate/boilerplate.factor
new file mode 100644
index 0000000000..59f71b1524
--- /dev/null
+++ b/basis/furnace/boilerplate/boilerplate.factor
@@ -0,0 +1,37 @@
+! Copyright (c) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel math.order namespaces furnace combinators.short-circuit
+html.forms
+html.templates
+html.templates.chloe
+locals
+http.server
+http.server.filters ;
+IN: furnace.boilerplate
+
+TUPLE: boilerplate < filter-responder template init ;
+
+: <boilerplate> ( responder -- boilerplate )
+    boilerplate new
+        swap >>responder
+        [ ] >>init ;
+
+: wrap-boilerplate? ( response -- ? )
+    {
+        [ code>> { [ 200 = ] [ 400 499 between? ] } 1|| ]
+        [ content-type>> "text/html" = ]
+    } 1&& ;
+
+M:: boilerplate call-responder* ( path responder -- )
+    begin-form
+    path responder call-next-method
+    responder init>> call
+    dup content-type>> "text/html" = [
+        clone [| body |
+            [
+                body
+                responder template>> resolve-template-path <chloe>
+                with-boilerplate
+            ]
+        ] change-body
+    ] when ;
diff --git a/basis/furnace/cache/cache.factor b/basis/furnace/cache/cache.factor
new file mode 100644
index 0000000000..a5308c171e
--- /dev/null
+++ b/basis/furnace/cache/cache.factor
@@ -0,0 +1,36 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors math.intervals
+system calendar alarms fry
+random db db.tuples db.types
+http.server.filters ;
+IN: furnace.cache
+
+TUPLE: server-state id expires ;
+
+: new-server-state ( id class -- server-state )
+    new swap >>id ; inline
+
+server-state f
+{
+    { "id" "ID" +random-id+ system-random-generator }
+    { "expires" "EXPIRES" BIG-INTEGER +not-null+ }
+} define-persistent
+
+: get-state ( id class -- state )
+    new-server-state select-tuple ;
+
+: expire-state ( class -- )
+    new
+        -1.0/0.0 millis [a,b] >>expires
+    delete-tuples ;
+
+TUPLE: server-state-manager < filter-responder timeout ;
+
+: new-server-state-manager ( responder class -- responder' )
+    new
+        swap >>responder
+        20 minutes >>timeout ; inline
+
+: touch-state ( state manager -- )
+    timeout>> hence timestamp>millis >>expires drop ;
diff --git a/basis/furnace/chloe-tags/chloe-tags-tests.factor b/basis/furnace/chloe-tags/chloe-tags-tests.factor
new file mode 100644
index 0000000000..f172ce36f6
--- /dev/null
+++ b/basis/furnace/chloe-tags/chloe-tags-tests.factor
@@ -0,0 +1,19 @@
+USING: html.forms furnace.chloe-tags tools.test ;
+IN: furnace.chloe-tags.tests
+
+[ f ] [ f parse-query-attr ] unit-test
+
+[ f ] [ "" parse-query-attr ] unit-test
+
+[ H{ { "a" "b" } } ] [
+    begin-form
+    "b" "a" set-value
+    "a" parse-query-attr
+] unit-test
+
+[ H{ { "a" "b" } { "c" "d" } } ] [
+    begin-form
+    "b" "a" set-value
+    "d" "c" set-value
+    "a,c" parse-query-attr
+] unit-test
diff --git a/basis/furnace/chloe-tags/chloe-tags.factor b/basis/furnace/chloe-tags/chloe-tags.factor
new file mode 100644
index 0000000000..8822bca519
--- /dev/null
+++ b/basis/furnace/chloe-tags/chloe-tags.factor
@@ -0,0 +1,126 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays kernel combinators assocs
+namespaces sequences splitting words
+fry urls multiline present qualified
+xml
+xml.data
+xml.entities
+xml.writer
+xml.utilities
+html.components
+html.elements
+html.forms
+html.templates
+html.templates.chloe
+html.templates.chloe.compiler
+html.templates.chloe.syntax
+http
+http.server
+http.server.redirection
+http.server.responses
+furnace ;
+QUALIFIED-WITH: assocs a
+IN: furnace.chloe-tags
+
+! Chloe tags
+: parse-query-attr ( string -- assoc )
+    [ f ] [ "," split [ dup value ] H{ } map>assoc ] if-empty ;
+
+: a-url-path ( href rest -- string )
+    dup [ value ] when
+    [ [ "/" ?tail drop "/" ] dip present 3append ] when* ;
+
+: a-url ( href rest query value-name -- url )
+    dup [ >r 3drop r> value ] [
+        drop
+        <url>
+            swap parse-query-attr >>query
+            -rot a-url-path >>path
+        adjust-url relative-to-request
+    ] if ;
+
+: compile-a-url ( tag -- )
+    {
+        [ "href" required-attr compile-attr ]
+        [ "rest" optional-attr compile-attr ]
+        [ "query" optional-attr compile-attr ]
+        [ "value" optional-attr compile-attr ]
+    } cleave [ a-url ] [code] ;
+
+CHLOE: atom
+    [ compile-children>string ] [ compile-a-url ] bi
+    [ add-atom-feed ] [code] ;
+
+CHLOE: write-atom drop [ write-atom-feeds ] [code] ;
+
+: compile-link-attrs ( tag -- )
+    #! Side-effects current namespace.
+    attrs>> '[ [ , _ link-attr ] each-responder ] [code] ;
+
+: a-start-tag ( tag -- )
+    [ compile-link-attrs ] [ compile-a-url ] bi
+    [ <a =href a> ] [code] ;
+
+: a-end-tag ( tag -- )
+    drop [ </a> ] [code] ;
+
+CHLOE: a
+    [
+        [ a-start-tag ] [ compile-children ] [ a-end-tag ] tri
+    ] compile-with-scope ;
+
+: compile-hidden-form-fields ( for -- )
+    '[
+        , [ "," split [ hidden render ] each ] when*
+        nested-forms get " " join f like nested-forms-key hidden-form-field
+        [ modify-form ] each-responder
+    ] [code] ;
+
+: compile-form-attrs ( method action attrs -- )
+    [ <form ] [code]
+    [ compile-attr [ =method ] [code] ]
+    [ compile-attr [ resolve-base-path =action ] [code] ]
+    [ compile-attrs ]
+    tri*
+    [ form> ] [code] ;
+
+: form-start-tag ( tag -- )
+    [
+        [ "method" optional-attr "post" or ]
+        [ "action" required-attr ]
+        [ attrs>> non-chloe-attrs-only ] tri
+        compile-form-attrs
+    ]
+    [ "for" optional-attr compile-hidden-form-fields ] bi ;
+
+: form-end-tag ( tag -- )
+    drop [ </form> ] [code] ;
+
+CHLOE: form
+    [
+        {
+            [ compile-link-attrs ]
+            [ form-start-tag ]
+            [ compile-children ]
+            [ form-end-tag ]
+        } cleave
+    ] compile-with-scope ;
+
+STRING: button-tag-markup
+<t:form class="inline" xmlns:t="http://factorcode.org/chloe/1.0">
+    <button type="submit"></button>
+</t:form>
+;
+
+: add-tag-attrs ( attrs tag -- )
+    attrs>> swap update ;
+
+CHLOE: button
+    button-tag-markup string>xml body>>
+    {
+        [ [ attrs>> chloe-attrs-only ] dip add-tag-attrs ]
+        [ [ attrs>> non-chloe-attrs-only ] dip "button" tag-named add-tag-attrs ]
+        [ [ children>> ] dip "button" tag-named (>>children) ]
+        [ nip ]
+    } 2cleave compile-chloe-tag ;
diff --git a/basis/furnace/conversations/conversations.factor b/basis/furnace/conversations/conversations.factor
new file mode 100644
index 0000000000..26b62f9b07
--- /dev/null
+++ b/basis/furnace/conversations/conversations.factor
@@ -0,0 +1,179 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces assocs kernel sequences accessors hashtables
+urls db.types db.tuples math.parser fry logging combinators
+html.templates.chloe.syntax
+http http.server http.server.filters http.server.redirection
+furnace
+furnace.cache
+furnace.scopes
+furnace.sessions
+furnace.redirection ;
+IN: furnace.conversations
+
+TUPLE: conversation < scope
+session
+method url post-data ;
+
+: <conversation> ( id -- aside )
+    conversation new-server-state ;
+
+conversation "CONVERSATIONS" {
+    { "session" "SESSION" BIG-INTEGER +not-null+ }
+    { "method" "METHOD" { VARCHAR 10 } }
+    { "url" "URL" URL }
+    { "post-data" "POST_DATA" FACTOR-BLOB }
+} define-persistent
+
+: conversation-id-key "__c" ;
+
+TUPLE: conversations < server-state-manager ;
+
+: <conversations> ( responder -- responder' )
+    conversations new-server-state-manager ;
+
+SYMBOL: conversation
+
+SYMBOL: conversation-id
+
+: cget ( key -- value )
+    conversation get scope-get ;
+
+: cset ( value key -- )
+    conversation get scope-set ;
+
+: cchange ( key quot -- )
+    conversation get scope-change ; inline
+
+: get-conversation ( id -- conversation )
+    dup [ conversation get-state ] when
+    dup [ dup session>> session get id>> = [ drop f ] unless ] when ;
+
+: request-conversation-id ( request -- id )
+    conversation-id-key swap request-params at string>number ;
+
+: request-conversation ( request -- conversation )
+    request-conversation-id get-conversation ;
+
+: save-conversation-after ( conversation -- )
+    conversations get save-scope-after ;
+
+: set-conversation ( conversation -- )
+    [
+        [ conversation set ]
+        [ id>> conversation-id set ]
+        [ save-conversation-after ]
+        tri
+    ] when* ;
+
+: init-conversations ( conversations -- )
+    conversations set
+    request get request-conversation-id
+    get-conversation
+    set-conversation ;
+
+M: conversations call-responder*
+    [ init-conversations ]
+    [ conversations set ]
+    [ call-next-method ]
+    tri ;
+
+: empty-conversastion ( -- conversation )
+    conversation empty-scope
+        session get id>> >>session ;
+
+: touch-conversation ( conversation -- )
+    conversations get touch-state ;
+
+: add-conversation ( conversation -- )
+    [ touch-conversation ] [ insert-tuple ] bi ;
+
+: begin-conversation* ( -- conversation )
+    empty-conversastion dup add-conversation ;
+
+: begin-conversation ( -- )
+    conversation get [
+        begin-conversation*
+        set-conversation
+    ] unless ;
+
+: end-conversation ( -- )
+    conversation off
+    conversation-id off ;
+
+: <conversation-redirect> ( url seq -- response )
+    begin-conversation
+    [ [ get ] keep cset ] each
+    <redirect> ;
+
+: restore-conversation ( seq -- )
+    conversation get dup [
+        namespace>>
+        [ '[ , key? ] filter ]
+        [ '[ [ , at ] keep set ] each ]
+        bi
+    ] [ 2drop ] if ;
+
+: begin-aside ( -- )
+    begin-conversation
+    conversation get
+        request get
+        [ method>> >>method ]
+        [ url>> >>url ]
+        [ post-data>> >>post-data ]
+        tri
+    touch-conversation ;
+
+: end-aside-post ( aside -- response )
+    request [
+        clone
+            over post-data>> >>post-data
+            over url>> >>url
+    ] change
+    [ url>> url set ]
+    [ url>> path>> split-path ] bi
+    conversations get responder>> call-responder ;
+
+\ end-aside-post DEBUG add-input-logging
+
+ERROR: end-aside-in-get-error ;
+
+: move-on ( id -- response )
+    post-request? [ end-aside-in-get-error ] unless
+    dup method>> {
+        { "GET" [ url>> <redirect> ] }
+        { "HEAD" [ url>> <redirect> ] }
+        { "POST" [ end-aside-post ] }
+    } case ;
+
+: get-aside ( id -- conversation )
+    get-conversation dup [ dup method>> [ drop f ] unless ] when ;
+
+: end-aside* ( url id -- response )
+    get-aside [ move-on ] [ <redirect> ] ?if ;
+
+: end-aside ( default -- response )
+    conversation-id get
+    end-conversation
+    end-aside* ;
+
+M: conversations link-attr ( tag -- )
+    drop
+    "aside" optional-attr {
+        { "none" [ conversation-id off ] }
+        { "begin" [ begin-aside ] }
+        { "current" [ ] }
+        { f [ ] }
+    } case ;
+
+M: conversations modify-query ( query conversations -- query' )
+    drop
+    conversation-id get [
+        conversation-id-key associate assoc-union
+    ] when* ;
+
+M: conversations modify-form ( conversations -- )
+    drop
+    conversation-id get
+    conversation-id-key
+    hidden-form-field ;
diff --git a/extra/furnace/db/db-tests.factor b/basis/furnace/db/db-tests.factor
similarity index 100%
rename from extra/furnace/db/db-tests.factor
rename to basis/furnace/db/db-tests.factor
diff --git a/extra/furnace/db/db.factor b/basis/furnace/db/db.factor
similarity index 84%
rename from extra/furnace/db/db.factor
rename to basis/furnace/db/db.factor
index 8487b4b3fc..b4a4386015 100755
--- a/extra/furnace/db/db.factor
+++ b/basis/furnace/db/db.factor
@@ -1,8 +1,7 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel accessors continuations namespaces destructors
-db db.pools io.pools http.server http.server.filters
-furnace.sessions ;
+db db.pools io.pools http.server http.server.filters ;
 IN: furnace.db
 
 TUPLE: db-persistence < filter-responder pool ;
diff --git a/extra/furnace/furnace-tests.factor b/basis/furnace/furnace-tests.factor
similarity index 77%
rename from extra/furnace/furnace-tests.factor
rename to basis/furnace/furnace-tests.factor
index 5cf2dad9ad..223b20455d 100644
--- a/extra/furnace/furnace-tests.factor
+++ b/basis/furnace/furnace-tests.factor
@@ -1,6 +1,7 @@
 IN: furnace.tests
 USING: http.server.dispatchers http.server.responses
-http.server furnace tools.test kernel namespaces accessors ;
+http.server furnace tools.test kernel namespaces accessors
+io.streams.string ;
 TUPLE: funny-dispatcher < dispatcher ;
 
 : <funny-dispatcher> funny-dispatcher new-dispatcher ;
@@ -28,3 +29,7 @@ M: base-path-check-responder call-responder*
     V{ } responder-nesting set
     "a/b/c" split-path main-responder get call-responder body>>
 ] unit-test
+
+[ "<input type='hidden' name='foo' value='&amp;&amp;&amp;'/>" ]
+[ [ "&&&" "foo" hidden-form-field ] with-string-writer ]
+unit-test
diff --git a/basis/furnace/furnace.factor b/basis/furnace/furnace.factor
new file mode 100644
index 0000000000..b90587fba8
--- /dev/null
+++ b/basis/furnace/furnace.factor
@@ -0,0 +1,112 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces assocs sequences kernel classes splitting
+vocabs.loader accessors strings combinators arrays
+continuations present fry
+urls html.elements
+http http.server http.server.redirection ;
+IN: furnace
+
+: nested-responders ( -- seq )
+    responder-nesting get values ;
+
+: each-responder ( quot -- )
+   nested-responders swap each ; inline
+
+: base-path ( string -- pair )
+    dup responder-nesting get
+    [ second class superclasses [ name>> = ] with contains? ] with find nip
+    [ first ] [ "No such responder: " swap append throw ] ?if ;
+
+: resolve-base-path ( string -- string' )
+    "$" ?head [
+        [
+            "/" split1 [ base-path [  "/" % % ] each "/" % ] dip %
+        ] "" make
+    ] when ;
+
+: vocab-path ( vocab -- path )
+    dup vocab-dir vocab-append-path ;
+
+: resolve-template-path ( pair -- path )
+    [
+        first2 [ vocabulary>> vocab-path % ] [ "/" % % ] bi*
+    ] "" make ;
+
+GENERIC: modify-query ( query responder -- query' )
+
+M: object modify-query drop ;
+
+GENERIC: adjust-url ( url -- url' )
+
+M: url adjust-url
+    clone
+        [ [ modify-query ] each-responder ] change-query
+        [ resolve-base-path ] change-path
+    relative-to-request ;
+
+M: string adjust-url ;
+
+GENERIC: link-attr ( tag responder -- )
+
+M: object link-attr 2drop ;
+
+GENERIC: modify-form ( responder -- )
+
+M: object modify-form drop ;
+
+: hidden-form-field ( value name -- )
+    over [
+        <input
+            "hidden" =type
+            =name
+            present =value
+        input/>
+    ] [ 2drop ] if ;
+
+: nested-forms-key "__n" ;
+
+: request-params ( request -- assoc )
+    dup method>> {
+        { "GET" [ url>> query>> ] }
+        { "HEAD" [ url>> query>> ] }
+        { "POST" [
+            post-data>>
+            dup content-type>> "application/x-www-form-urlencoded" =
+            [ content>> ] [ drop f ] if
+        ] }
+    } case ;
+
+: referrer ( -- referrer )
+    #! Typo is intentional, its in the HTTP spec!
+    "referer" request get header>> at >url ;
+
+: user-agent ( -- user-agent )
+    "user-agent" request get header>> at "" or ;
+
+: same-host? ( url -- ? )
+    url get
+    [ [ protocol>> ] [ host>> ] [ port>> ] tri 3array ] bi@ = ;
+
+: cookie-client-state ( key request -- value/f )
+    swap get-cookie dup [ value>> ] when ;
+
+: post-client-state ( key request -- value/f )
+    request-params at ;
+
+: client-state ( key -- value/f )
+    request get dup method>> {
+        { "GET" [ cookie-client-state ] }
+        { "HEAD" [ cookie-client-state ] }
+        { "POST" [ post-client-state ] }
+    } case ;
+
+SYMBOL: exit-continuation
+
+: exit-with ( value -- )
+    exit-continuation get continue-with ;
+
+: with-exit-continuation ( quot -- )
+    '[ exit-continuation set @ ] callcc1 exit-continuation off ;
+
+"furnace.chloe-tags" require
diff --git a/extra/furnace/json/json.factor b/basis/furnace/json/json.factor
similarity index 100%
rename from extra/furnace/json/json.factor
rename to basis/furnace/json/json.factor
diff --git a/basis/furnace/redirection/redirection.factor b/basis/furnace/redirection/redirection.factor
new file mode 100644
index 0000000000..942cafd21a
--- /dev/null
+++ b/basis/furnace/redirection/redirection.factor
@@ -0,0 +1,45 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors combinators namespaces fry
+io.servers.connection urls http http.server
+http.server.redirection http.server.responses
+http.server.filters furnace ;
+IN: furnace.redirection
+
+: <redirect> ( url -- response )
+    adjust-url request get method>> {
+        { "GET" [ <temporary-redirect> ] }
+        { "HEAD" [ <temporary-redirect> ] }
+        { "POST" [ <permanent-redirect> ] }
+    } case ;
+
+: >secure-url ( url -- url' )
+    clone
+        "https" >>protocol
+        secure-port >>port ;
+
+: <secure-redirect> ( url -- response )
+    >secure-url <redirect> ;
+
+TUPLE: redirect-responder to ;
+
+: <redirect-responder> ( url -- responder )
+    redirect-responder boa ;
+
+M: redirect-responder call-responder* nip to>> <redirect> ;
+
+TUPLE: secure-only < filter-responder ;
+
+C: <secure-only> secure-only
+
+: secure-connection? ( -- ? ) url get protocol>> "https" = ;
+
+: if-secure ( quot -- response )
+    {
+        { [ secure-connection? ] [ call ] }
+        { [ request get method>> "POST" = ] [ drop <400> ] }
+        [ drop url get <secure-redirect> ]
+    } cond ; inline
+
+M: secure-only call-responder*
+    '[ , , call-next-method ] if-secure ;
diff --git a/basis/furnace/referrer/referrer.factor b/basis/furnace/referrer/referrer.factor
new file mode 100644
index 0000000000..4cfd4bb6c6
--- /dev/null
+++ b/basis/furnace/referrer/referrer.factor
@@ -0,0 +1,17 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel http.server http.server.filters
+http.server.responses furnace ;
+IN: furnace.referrer
+
+TUPLE: referrer-check < filter-responder quot ;
+
+C: <referrer-check> referrer-check
+
+M: referrer-check call-responder*
+    referrer over quot>> call
+    [ call-next-method ]
+    [ 2drop 403 "Bad referrer" <trivial-response> ] if ;
+
+: <check-form-submissions> ( responder -- responder' )
+    [ same-host? post-request? not or ] <referrer-check> ;
diff --git a/basis/furnace/scopes/scopes.factor b/basis/furnace/scopes/scopes.factor
new file mode 100644
index 0000000000..daad0dcf91
--- /dev/null
+++ b/basis/furnace/scopes/scopes.factor
@@ -0,0 +1,42 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors assocs destructors
+db.tuples db.types furnace.cache ;
+IN: furnace.scopes
+
+TUPLE: scope < server-state namespace changed? ;
+
+: empty-scope ( class -- scope )
+    f swap new-server-state
+        H{ } clone >>namespace ; inline
+
+scope f
+{
+    { "namespace" "NAMESPACE" FACTOR-BLOB +not-null+ }
+} define-persistent
+
+: scope-changed ( scope -- )
+    t >>changed? drop ;
+
+: scope-get ( key scope -- value )
+    dup [ namespace>> at ] [ 2drop f ] if ;
+
+: scope-set ( value key scope -- )
+    [ namespace>> set-at ] [ scope-changed ] bi ;
+
+: scope-change ( key quot scope -- )
+    [ namespace>> swap change-at ] [ scope-changed ] bi ; inline
+
+! Destructor
+TUPLE: scope-saver scope manager ;
+
+C: <scope-saver> scope-saver
+
+M: scope-saver dispose
+    [ manager>> ] [ scope>> ] bi
+    dup changed?>> [
+        [ swap touch-state ] [ update-tuple ] bi
+    ] [ 2drop ] if ;
+
+: save-scope-after ( scope manager -- )
+    <scope-saver> &dispose drop ;
diff --git a/extra/editors/ultraedit/authors.txt b/basis/furnace/sessions/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/editors/ultraedit/authors.txt
rename to basis/furnace/sessions/authors.txt
diff --git a/extra/furnace/sessions/sessions-tests.factor b/basis/furnace/sessions/sessions-tests.factor
similarity index 90%
rename from extra/furnace/sessions/sessions-tests.factor
rename to basis/furnace/sessions/sessions-tests.factor
index a7a663ffa8..98d1bbdfc9 100755
--- a/extra/furnace/sessions/sessions-tests.factor
+++ b/basis/furnace/sessions/sessions-tests.factor
@@ -1,9 +1,9 @@
 IN: furnace.sessions.tests
 USING: tools.test http furnace.sessions
 furnace.actions http.server http.server.responses
-math namespaces kernel accessors
+math namespaces kernel accessors io.sockets io.servers.connection
 prettyprint io.streams.string io.files splitting destructors
-sequences db db.sqlite continuations urls math.parser
+sequences db db.tuples db.sqlite continuations urls math.parser
 furnace ;
 
 : with-session
@@ -54,7 +54,9 @@ M: foo call-responder*
 "auth-test.db" temp-file sqlite-db [
 
     <request> init-request
-    init-sessions-table
+    session ensure-table
+
+    "127.0.0.1" 1234 <inet4> remote-address set
 
     [ ] [
         <foo> <sessions>
diff --git a/basis/furnace/sessions/sessions.factor b/basis/furnace/sessions/sessions.factor
new file mode 100755
index 0000000000..718953c58c
--- /dev/null
+++ b/basis/furnace/sessions/sessions.factor
@@ -0,0 +1,109 @@
+! Copyright (C) 2008 Doug Coleman, Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs kernel math.intervals math.parser namespaces
+strings random accessors quotations hashtables sequences continuations
+fry calendar combinators combinators.short-circuit destructors alarms
+io.servers.connection
+db db.tuples db.types
+http http.server http.server.dispatchers http.server.filters
+html.elements
+furnace furnace.cache furnace.scopes ;
+IN: furnace.sessions
+
+TUPLE: session < scope user-agent client ;
+
+: <session> ( id -- session )
+    session new-server-state ;
+
+session "SESSIONS"
+{
+    { "user-agent" "USER_AGENT" TEXT +not-null+ }
+    { "client" "CLIENT" TEXT +not-null+ }
+} define-persistent
+
+: get-session ( id -- session )
+    dup [ session get-state ] when ;
+
+GENERIC: init-session* ( responder -- )
+
+M: object init-session* drop ;
+
+M: dispatcher init-session* default>> init-session* ;
+
+M: filter-responder init-session* responder>> init-session* ;
+
+TUPLE: sessions < server-state-manager domain verify? ;
+
+: <sessions> ( responder -- responder' )
+    sessions new-server-state-manager
+        t >>verify? ;
+
+: session-changed ( -- )
+    session get scope-changed ;
+
+: sget ( key -- value ) session get scope-get ;
+
+: sset ( value key -- ) session get scope-set ;
+
+: schange ( key quot -- ) session get scope-change ; inline
+
+: init-session ( session -- )
+    session [ sessions get init-session* ] with-variable ;
+
+: touch-session ( session -- )
+    sessions get touch-state ;
+
+: remote-host ( -- string )
+    {
+        [ request get "x-forwarded-for" header ]
+        [ remote-address get host>> ]
+    } 0|| ;
+
+: empty-session ( -- session )
+    session empty-scope
+        remote-host >>client
+        user-agent >>user-agent
+        dup touch-session ;
+
+: begin-session ( -- session )
+    empty-session [ init-session ] [ insert-tuple ] [ ] tri ;
+
+: save-session-after ( session -- )
+    sessions get save-scope-after ;
+
+: existing-session ( path session -- response )
+    [ session set ] [ save-session-after ] bi
+    sessions get responder>> call-responder ;
+
+: session-id-key "__s" ;
+
+: verify-session ( session -- session )
+    sessions get verify?>> [
+        dup [
+            dup
+            [ client>> remote-host = ]
+            [ user-agent>> user-agent = ]
+            bi and [ drop f ] unless
+        ] when
+    ] when ;
+
+: request-session ( -- session/f )
+    session-id-key
+    client-state dup string? [ string>number ] when
+    get-session verify-session ;
+
+: <session-cookie> ( -- cookie )
+    session get id>> session-id-key <cookie>
+        "$sessions" resolve-base-path >>path
+        sessions get domain>> >>domain ;
+
+: put-session-cookie ( response -- response' )
+    <session-cookie> put-cookie ;
+
+M: sessions modify-form ( responder -- )
+    drop session get id>> session-id-key hidden-form-field ;
+
+M: sessions call-responder* ( path responder -- response )
+    sessions set
+    request-session [ begin-session ] unless*
+    existing-session put-session-cookie ;
diff --git a/basis/furnace/syndication/syndication.factor b/basis/furnace/syndication/syndication.factor
new file mode 100644
index 0000000000..31a978aef3
--- /dev/null
+++ b/basis/furnace/syndication/syndication.factor
@@ -0,0 +1,53 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel sequences fry
+combinators syndication
+http.server.responses http.server.redirection
+furnace furnace.actions ;
+IN: furnace.syndication
+
+GENERIC: feed-entry-title ( object -- string )
+
+GENERIC: feed-entry-date ( object -- timestamp )
+
+GENERIC: feed-entry-url ( object -- url )
+
+GENERIC: feed-entry-description ( object -- description )
+
+M: object feed-entry-description drop f ;
+
+GENERIC: >entry ( object -- entry )
+
+M: entry >entry ;
+
+M: object >entry
+    <entry>
+        swap {
+            [ feed-entry-title >>title ]
+            [ feed-entry-date >>date ]
+            [ feed-entry-url >>url ]
+            [ feed-entry-description >>description ]
+        } cleave ;
+
+: process-entries ( seq -- seq' )
+    20 short head-slice [
+        >entry clone
+        [ adjust-url relative-to-request ] change-url
+    ] map ;
+
+: <feed-content> ( body -- response )
+    feed>xml "application/atom+xml" <content> ;
+
+TUPLE: feed-action < action title url entries ;
+
+: <feed-action> ( -- action )
+    feed-action new-action
+        dup '[
+            feed new
+                ,
+                [ title>> call >>title ]
+                [ url>> call adjust-url relative-to-request >>url ]
+                [ entries>> call process-entries >>entries ]
+                tri
+            <feed-content>
+        ] >>display ;
diff --git a/basis/furnace/utilities/utilities.factor b/basis/furnace/utilities/utilities.factor
new file mode 100644
index 0000000000..4bfbdcd943
--- /dev/null
+++ b/basis/furnace/utilities/utilities.factor
@@ -0,0 +1,19 @@
+! Copyright (c) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors words kernel sequences splitting ;
+IN: furnace.utilities
+
+: word>string ( word -- string )
+    [ vocabulary>> ] [ name>> ] bi ":" swap 3append ;
+
+: words>strings ( seq -- seq' )
+    [ word>string ] map ;
+
+ERROR: no-such-word name vocab ;
+
+: string>word ( string -- word )
+    ":" split1 swap 2dup lookup dup
+    [ 2nip ] [ drop no-such-word ] if ;
+
+: strings>words ( seq -- seq' )
+    [ string>word ] map ;
diff --git a/basis/generalizations/generalizations-docs.factor b/basis/generalizations/generalizations-docs.factor
new file mode 100755
index 0000000000..ba53e6c591
--- /dev/null
+++ b/basis/generalizations/generalizations-docs.factor
@@ -0,0 +1,166 @@
+USING: help.syntax help.markup kernel sequences quotations
+math arrays ;
+IN: generalizations
+
+HELP: nsequence
+{ $values { "n" integer } { "seq" "an exemplar" } }
+{ $description "A generalization of " { $link 2sequence } ", "
+{ $link 3sequence } ", and " { $link 4sequence } " "
+"that constructs a sequence from the top " { $snippet "n" } " elements of the stack."
+}
+{ $examples
+    { $example "USING: generalizations prettyprint ;" "CHAR: f CHAR: i CHAR: s CHAR: h 4 \"\" nsequence ." "\"fish\"" }
+} ;
+
+HELP: narray
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link 1array } ", "
+{ $link 2array } ", " { $link 3array } " and " { $link 4array } " "
+"that constructs an array from the top " { $snippet "n" } " elements of the stack."
+} ;
+
+{ nsequence narray } related-words
+
+HELP: firstn
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link first } ", "
+{ $link first2 } ", " { $link first3 } " and " { $link first4 } " "
+"that pushes the first " { $snippet "n" } " elements of a sequence on the stack."
+} ;
+
+HELP: npick
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link dup } ", "
+{ $link over } " and " { $link pick } " that can work "
+"for any stack depth. The nth item down the stack will be copied and "
+"placed on the top of the stack."
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 4 npick .s" "1\n2\n3\n4\n1" }
+}
+{ $see-also dup over pick } ;
+
+HELP: ndup
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link dup } ", "
+{ $link 2dup } " and " { $link 3dup } " that can work "
+"for any number of items. The n topmost items on the stack will be copied and "
+"placed on the top of the stack."
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 4 ndup .s" "1\n2\n3\n4\n1\n2\n3\n4" }
+}
+{ $see-also dup 2dup 3dup } ;
+
+HELP: nnip
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link nip } " and " { $link 2nip }
+" that can work "
+"for any number of items."
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 3 nnip .s" "4" }
+}
+{ $see-also nip 2nip } ;
+
+HELP: ndrop
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link drop }
+" that can work "
+"for any number of items."
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 3 ndrop .s" "1" }
+}
+{ $see-also drop 2drop 3drop } ;
+
+HELP: nrot
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link rot } " that works for any "
+"number of items on the stack. "
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 4 nrot .s" "2\n3\n4\n1" }
+}
+{ $see-also rot -nrot } ;
+
+HELP: -nrot
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link -rot } " that works for any "
+"number of items on the stack. "
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 4 -nrot .s" "4\n1\n2\n3" }
+}
+{ $see-also rot nrot } ;
+
+HELP: nrev
+{ $values { "n" integer } }
+{ $description "A generalization of " { $link spin } " that reverses any number of items at the top of the stack."
+}
+{ $examples
+  { $example "USING: prettyprint generalizations ;" "1 2 3 4 4 nrev .s" "4\n3\n2\n1" }
+}
+{ $see-also rot nrot } ;
+
+HELP: ndip
+{ $values { "quot" quotation } { "n" number } }
+{ $description "A generalization of " { $link dip } " that can work " 
+"for any stack depth. The quotation will be called with a stack that "
+"has 'n' items removed first. The 'n' items are then put back on the "
+"stack. The quotation can consume and produce any number of items."
+} 
+{ $examples
+  { $example "USING: generalizations kernel prettyprint ;" "1 2 [ dup ] 1 ndip .s" "1\n1\n2" }
+  { $example "USING: generalizations kernel prettyprint ;" "1 2 3 [ drop ] 2 ndip .s" "2\n3" }
+}
+{ $see-also dip 2dip } ;
+
+HELP: nslip
+{ $values { "n" number } }
+{ $description "A generalization of " { $link slip } " that can work " 
+"for any stack depth. The first " { $snippet "n" } " items after the quotation will be "
+"removed from the stack, the quotation called, and the items restored."
+} 
+{ $examples
+  { $example "USING: generalizations prettyprint ;" "[ 99 ] 1 2 3 4 5 5 nslip .s" "99\n1\n2\n3\n4\n5" }
+}
+{ $see-also slip nkeep } ;
+
+HELP: nkeep
+{ $values { "quot" quotation } { "n" number } }
+{ $description "A generalization of " { $link keep } " that can work " 
+"for any stack depth. The first " { $snippet "n" } " items after the quotation will be "
+"saved, the quotation called, and the items restored."
+} 
+{ $examples
+  { $example "USING: generalizations kernel prettyprint ;" "1 2 3 4 5 [ drop drop drop drop drop 99 ] 5 nkeep .s" "99\n1\n2\n3\n4\n5" }
+}
+{ $see-also keep nslip } ;
+
+ARTICLE: "generalizations" "Generalized shuffle words and combinators"
+"The " { $vocab-link "generalizations" } " vocabulary defines a number of stack shuffling words and combinators for use in "
+"macros where the arity of the input quotations depends on an "
+"input parameter."
+$nl
+"Generalized sequence operations:"
+{ $subsection narray }
+{ $subsection nsequence }
+{ $subsection firstn }
+"Generated stack shuffle operations:"
+{ $subsection ndup }
+{ $subsection npick }
+{ $subsection nrot }
+{ $subsection -nrot }
+{ $subsection nnip }
+{ $subsection ndrop }
+{ $subsection nrev }
+"Generalized combinators:"
+{ $subsection ndip }
+{ $subsection nslip }
+{ $subsection nkeep }
+{ $subsection ncurry } 
+{ $subsection nwith } 
+{ $subsection napply } ;
+
+ABOUT: "generalizations"
diff --git a/basis/generalizations/generalizations-tests.factor b/basis/generalizations/generalizations-tests.factor
new file mode 100755
index 0000000000..75985c9368
--- /dev/null
+++ b/basis/generalizations/generalizations-tests.factor
@@ -0,0 +1,38 @@
+USING: tools.test generalizations kernel math arrays sequences ;
+IN: generalizations.tests
+
+{ 1 2 3 4 1 } [ 1 2 3 4 4 npick ] unit-test
+{ 1 2 3 4 2 } [ 1 2 3 4 3 npick ] unit-test
+{ 1 2 3 4 3 } [ 1 2 3 4 2 npick ] unit-test
+{ 1 2 3 4 4 } [ 1 2 3 4 1 npick ] unit-test
+[ 1 1 ndup ] must-infer
+{ 1 1 } [ 1 1 ndup ] unit-test
+{ 1 2 1 2 } [ 1 2 2 ndup ] unit-test
+{ 1 2 3 1 2 3 } [ 1 2 3 3 ndup ] unit-test
+{ 1 2 3 4 1 2 3 4 } [ 1 2 3 4 4 ndup ] unit-test
+[ 1 2 2 nrot ] must-infer
+{ 2 1 } [ 1 2 2 nrot ] unit-test
+{ 2 3 1 } [ 1 2 3 3 nrot ] unit-test
+{ 2 3 4 1 } [ 1 2 3 4 4 nrot ] unit-test
+[ 1 2 2 -nrot ] must-infer
+{ 2 1 } [ 1 2 2 -nrot ] unit-test
+{ 3 1 2 } [ 1 2 3 3 -nrot ] unit-test
+{ 4 1 2 3 } [ 1 2 3 4 4 -nrot ] unit-test
+[ 1 2 3 4 3 nnip ] must-infer
+{ 4 } [ 1 2 3 4 3 nnip ] unit-test
+[ 1 2 3 4 4 ndrop ] must-infer
+{ 0 } [ 0 1 2 3 4 4 ndrop ] unit-test
+
+[ [ 99 ] 1 2 3 4 5 5 nslip ] must-infer
+{ 99 1 2 3 4 5 } [ [ 99 ] 1 2 3 4 5 5 nslip ] unit-test
+[ 1 2 3 4 5 [ drop drop drop drop drop 2 ] 5 nkeep ] must-infer
+{ 2 1 2 3 4 5 } [ 1 2 3 4 5 [ drop drop drop drop drop 2 ] 5 nkeep ] unit-test
+[ [ 1 2 3 + ] ] [ 1 2 3 [ + ] 3 ncurry ] unit-test
+[ { 1 2 } { 2 4 } { 3 8 } { 4 16 } { 5 32 } ] [ 1 2 3 4 5 [ dup 2^ 2array ] 5 napply ] unit-test
+[ [ dup 2^ 2array ] 5 napply ] must-infer
+
+[ { "xyc" "xyd" } ] [ "x" "y" { "c" "d" } [ 3append ] 2 nwith map ] unit-test
+
+[ 1 2 3 4 ] [ { 1 2 3 4 } 4 firstn ] unit-test
+[ ] [ { } 0 firstn ] unit-test
+[ "a" ] [ { "a" } 1 firstn ] unit-test
diff --git a/basis/generalizations/generalizations.factor b/basis/generalizations/generalizations.factor
new file mode 100755
index 0000000000..c97e9c7b91
--- /dev/null
+++ b/basis/generalizations/generalizations.factor
@@ -0,0 +1,65 @@
+! Copyright (C) 2007, 2008 Chris Double, Doug Coleman, Eduardo
+! Cavazos, Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences sequences.private namespaces math
+math.ranges combinators macros quotations fry arrays ;
+IN: generalizations
+
+MACRO: nsequence ( n seq -- quot )
+    [ drop <reversed> ] [ '[ , , new-sequence ] ] 2bi
+    [ '[ @ [ , swap set-nth-unsafe ] keep ] ] reduce ;
+
+MACRO: narray ( n -- quot )
+    '[ , { } nsequence ] ;
+
+MACRO: firstn ( n -- )
+    dup zero? [ drop [ drop ] ] [
+        [ [ '[ , _ nth-unsafe ] ] map ]
+        [ 1- '[ , _ bounds-check 2drop ] ]
+        bi prefix '[ , cleave ]
+    ] if ;
+
+MACRO: npick ( n -- )
+    1- dup saver [ dup ] rot [ r> swap ] n*quot 3append ;
+
+MACRO: ndup ( n -- )
+    dup '[ , npick ] n*quot ;
+
+MACRO: nrot ( n -- )
+    1- dup saver swap [ r> swap ] n*quot append ;
+
+MACRO: -nrot ( n -- )
+    1- dup [ swap >r ] n*quot swap restorer append ;
+
+MACRO: ndrop ( n -- )
+    [ drop ] n*quot ;
+
+: nnip ( n -- )
+    swap >r ndrop r> ; inline
+
+MACRO: ntuck ( n -- )
+    2 + [ dupd -nrot ] curry ;
+
+MACRO: nrev ( n -- quot )
+    1 [a,b] [ ] [ '[ @ , -nrot ] ] reduce ;
+
+MACRO: ndip ( quot n -- )
+    dup saver -rot restorer 3append ;
+
+MACRO: nslip ( n -- )
+    dup saver [ call ] rot restorer 3append ;
+
+MACRO: nkeep ( n -- )
+    [ ] [ 1+ ] [ ] tri
+    '[ [ , ndup ] dip , -nrot , nslip ] ;
+
+MACRO: ncurry ( n -- )
+    [ curry ] n*quot ;
+
+MACRO: nwith ( n -- )
+    [ with ] n*quot ;
+
+MACRO: napply ( n -- )
+    2 [a,b]
+    [ [ 1- ] keep '[ , ntuck , nslip ] ]
+    map concat >quotation [ call ] append ;
diff --git a/extra/ascii/authors.txt b/basis/globs/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/ascii/authors.txt
rename to basis/globs/authors.txt
diff --git a/extra/globs/globs-tests.factor b/basis/globs/globs-tests.factor
similarity index 100%
rename from extra/globs/globs-tests.factor
rename to basis/globs/globs-tests.factor
diff --git a/extra/globs/globs.factor b/basis/globs/globs.factor
similarity index 59%
rename from extra/globs/globs.factor
rename to basis/globs/globs.factor
index 4fa56bcf93..c7d5413a47 100755
--- a/extra/globs/globs.factor
+++ b/basis/globs/globs.factor
@@ -1,18 +1,22 @@
 ! Copyright (C) 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: parser-combinators regexp lazy-lists sequences kernel
+USING: parser-combinators regexp lists sequences kernel
 promises strings unicode.case ;
 IN: globs
 
 <PRIVATE
 
-: 'char' [ ",*?" member? not ] satisfy ;
+: 'char' ( -- parser )
+    [ ",*?" member? not ] satisfy ;
 
-: 'string' 'char' <+> [ >lower token ] <@ ;
+: 'string' ( -- parser )
+    'char' <+> [ >lower token ] <@ ;
 
-: 'escaped-char' "\\" token any-char-parser &> [ 1token ] <@ ;
+: 'escaped-char' ( -- parser )
+    "\\" token any-char-parser &> [ 1token ] <@ ;
 
-: 'escaped-string' 'string' 'escaped-char' <|> ;
+: 'escaped-string' ( -- parser )
+    'string' 'escaped-char' <|> ;
 
 DEFER: 'term'
 
@@ -23,7 +27,7 @@ DEFER: 'term'
     'glob' "," token nonempty-list-of "{" "}" surrounded-by
     [ <or-parser> ] <@ ;
 
-LAZY: 'term'
+LAZY: 'term' ( -- parser )
     'union'
     'character-class' <|>
     "?" token [ drop any-char-parser ] <@ <|>
@@ -32,7 +36,7 @@ LAZY: 'term'
 
 PRIVATE>
 
-: <glob> 'glob' just parse-1 just ;
+: <glob> ( string -- glob ) 'glob' just parse-1 just ;
 
 : glob-matches? ( input glob -- ? )
     [ >lower ] [ <glob> ] bi* parse nil? not ;
diff --git a/extra/globs/summary.txt b/basis/globs/summary.txt
similarity index 100%
rename from extra/globs/summary.txt
rename to basis/globs/summary.txt
diff --git a/extra/delegate/authors.txt b/basis/hash2/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/delegate/authors.txt
rename to basis/hash2/authors.txt
diff --git a/extra/hash2/hash2-docs.factor b/basis/hash2/hash2-docs.factor
similarity index 97%
rename from extra/hash2/hash2-docs.factor
rename to basis/hash2/hash2-docs.factor
index b3e1a53cea..a778f3c441 100644
--- a/extra/hash2/hash2-docs.factor
+++ b/basis/hash2/hash2-docs.factor
@@ -1,7 +1,7 @@
 USING: help.syntax help.markup ;
 IN: hash2
 
-ARTICLE: { "hash2" "intro" } "hash2 Vocabulary"
+ARTICLE: { "hash2" "intro" } "Hash2"
 "The hash2 vocabulary specifies a simple minimal datastructure for hash tables with two integers as keys. These hash tables are fixed size and do not conform to the associative mapping protocol. Words used in creating and manipulating these hash tables include:"
 { $subsection <hash2> }
 { $subsection hash2 }
diff --git a/extra/hash2/hash2-tests.factor b/basis/hash2/hash2-tests.factor
similarity index 100%
rename from extra/hash2/hash2-tests.factor
rename to basis/hash2/hash2-tests.factor
diff --git a/extra/hash2/hash2.factor b/basis/hash2/hash2.factor
similarity index 100%
rename from extra/hash2/hash2.factor
rename to basis/hash2/hash2.factor
diff --git a/extra/hash2/summary.txt b/basis/hash2/summary.txt
similarity index 100%
rename from extra/hash2/summary.txt
rename to basis/hash2/summary.txt
diff --git a/extra/float-vectors/tags.txt b/basis/hash2/tags.txt
similarity index 100%
rename from extra/float-vectors/tags.txt
rename to basis/hash2/tags.txt
diff --git a/core/heaps/authors.txt b/basis/heaps/authors.txt
similarity index 100%
rename from core/heaps/authors.txt
rename to basis/heaps/authors.txt
diff --git a/core/heaps/heaps-docs.factor b/basis/heaps/heaps-docs.factor
similarity index 100%
rename from core/heaps/heaps-docs.factor
rename to basis/heaps/heaps-docs.factor
diff --git a/core/heaps/heaps-tests.factor b/basis/heaps/heaps-tests.factor
similarity index 94%
rename from core/heaps/heaps-tests.factor
rename to basis/heaps/heaps-tests.factor
index d55b547b8f..13b6a97654 100755
--- a/core/heaps/heaps-tests.factor
+++ b/basis/heaps/heaps-tests.factor
@@ -48,7 +48,7 @@ IN: heaps.tests
 : test-entry-indices ( n -- ? )
     random-alist
     <min-heap> [ heap-push-all ] keep
-    data>> dup length swap [ entry-index ] map sequence= ;
+    data>> dup length swap [ index>> ] map sequence= ;
 
 14 [
     [ t ] swap [ 2^ test-entry-indices ] curry unit-test
@@ -58,7 +58,7 @@ IN: heaps.tests
     dup length random dup pick nth >r swap delete-nth r> ;
 
 : sort-entries ( entries -- entries' )
-    [ [ entry-key ] compare ] sort ;
+    [ [ key>> ] compare ] sort ;
 
 : delete-test ( n -- ? )
     [
@@ -67,7 +67,7 @@ IN: heaps.tests
         dup data>> clone swap
     ] keep 3 /i [ 2dup >r delete-random r> heap-delete ] times
     data>>
-    [ [ entry-key ] map ] bi@
+    [ [ key>> ] map ] bi@
     [ natural-sort ] bi@ ;
 
 11 [
diff --git a/core/heaps/heaps.factor b/basis/heaps/heaps.factor
similarity index 84%
rename from core/heaps/heaps.factor
rename to basis/heaps/heaps.factor
index 57f0e0ac72..21eab2b8f1 100755
--- a/core/heaps/heaps.factor
+++ b/basis/heaps/heaps.factor
@@ -2,11 +2,9 @@
 ! Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math sequences arrays assocs sequences.private
-growable accessors math.order ;
+growable accessors math.order summary ;
 IN: heaps
 
-MIXIN: priority-queue
-
 GENERIC: heap-push* ( value key heap -- entry )
 GENERIC: heap-peek ( heap -- value key )
 GENERIC: heap-pop* ( heap -- )
@@ -36,13 +34,10 @@ TUPLE: max-heap < heap ;
 
 : <max-heap> ( -- max-heap ) max-heap <heap> ;
 
-INSTANCE: min-heap priority-queue
-INSTANCE: max-heap priority-queue
-
-M: priority-queue heap-empty? ( heap -- ? )
+M: heap heap-empty? ( heap -- ? )
     data>> empty? ;
 
-M: priority-queue heap-size ( heap -- n )
+M: heap heap-size ( heap -- n )
     data>> length ;
 
 <PRIVATE
@@ -66,7 +61,7 @@ M: priority-queue heap-size ( heap -- n )
     >r right r> data-nth ; inline
 
 : data-set-nth ( entry n heap -- )
-    >r [ swap set-entry-index ] 2keep r>
+    >r [ >>index drop ] 2keep r>
     data>> set-nth-unsafe ;
 
 : data-push ( entry heap -- n )
@@ -92,7 +87,7 @@ M: priority-queue heap-size ( heap -- n )
 
 GENERIC: heap-compare ( pair1 pair2 heap -- ? )
 
-: (heap-compare) drop [ entry-key ] compare ; inline
+: (heap-compare) drop [ key>> ] compare ; inline
 
 M: min-heap heap-compare (heap-compare) +gt+ eq? ;
 
@@ -152,7 +147,7 @@ DEFER: down-heap
 
 PRIVATE>
 
-M: priority-queue heap-push* ( value key heap -- entry )
+M: heap heap-push* ( value key heap -- entry )
     [ <entry> dup ] keep [ data-push ] keep up-heap ;
 
 : heap-push ( value key heap -- ) heap-push* drop ;
@@ -163,16 +158,19 @@ M: priority-queue heap-push* ( value key heap -- entry )
 : >entry< ( entry -- key value )
     [ value>> ] [ key>> ] bi ;
 
-M: priority-queue heap-peek ( heap -- value key )
+M: heap heap-peek ( heap -- value key )
     data-first >entry< ;
 
-: entry>index ( entry heap -- n )
-    over entry-heap eq? [
-        "Invalid entry passed to heap-delete" throw
-    ] unless
-    entry-index ;
+ERROR: bad-heap-delete ;
 
-M: priority-queue heap-delete ( entry heap -- )
+M: bad-heap-delete summary 
+    drop "Invalid entry passed to heap-delete" ;
+    
+: entry>index ( entry heap -- n )
+    over heap>> eq? [ bad-heap-delete ] unless
+    index>> ;
+
+M: heap heap-delete ( entry heap -- )
     [ entry>index ] keep
     2dup heap-size 1- = [
         nip data-pop*
@@ -182,13 +180,13 @@ M: priority-queue heap-delete ( entry heap -- )
         down-heap
     ] if ;
 
-M: priority-queue heap-pop* ( heap -- )
+M: heap heap-pop* ( heap -- )
     dup data-first swap heap-delete ;
 
-M: priority-queue heap-pop ( heap -- value key )
+M: heap heap-pop ( heap -- value key )
     dup data-first [ swap heap-delete ] keep >entry< ;
 
 : heap-pop-all ( heap -- alist )
     [ dup heap-empty? not ]
     [ dup heap-pop swap 2array ]
-    [ ] unfold nip ;
+    [ ] produce nip ;
diff --git a/core/heaps/summary.txt b/basis/heaps/summary.txt
similarity index 100%
rename from core/heaps/summary.txt
rename to basis/heaps/summary.txt
diff --git a/extra/hash2/tags.txt b/basis/heaps/tags.txt
similarity index 100%
rename from extra/hash2/tags.txt
rename to basis/heaps/tags.txt
diff --git a/extra/benchmark/empty-loop/authors.txt b/basis/help/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/benchmark/empty-loop/authors.txt
rename to basis/help/authors.txt
diff --git a/extra/bootstrap/help/authors.txt b/basis/help/cookbook/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/bootstrap/help/authors.txt
rename to basis/help/cookbook/authors.txt
diff --git a/extra/help/cookbook/cookbook.factor b/basis/help/cookbook/cookbook.factor
similarity index 94%
rename from extra/help/cookbook/cookbook.factor
rename to basis/help/cookbook/cookbook.factor
index c2e12469c5..aef6ce6809 100755
--- a/extra/help/cookbook/cookbook.factor
+++ b/basis/help/cookbook/cookbook.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.syntax io kernel math namespaces parser
-prettyprint sequences vocabs.loader namespaces inference ;
+prettyprint sequences vocabs.loader namespaces stack-checker ;
 IN: help.cookbook
 
 ARTICLE: "cookbook-syntax" "Basic syntax cookbook"
@@ -11,7 +11,7 @@ $nl
 $nl
 "Factor evaluates code left to right, and stores intermediate values on a " { $emphasis "stack" } ". If you think of the stack as a pile of papers, then " { $emphasis "pushing" } " a value on the stack corresponds to placing a piece of paper at the top of the pile, while " { $emphasis "popping" } " a value corresponds to removing the topmost piece."
 $nl
-"Most words have a " { $emphasis "stack effect declaration" } ", for example " { $snippet "( x y -- z )" } " denotes that a word takes two inputs, with " { $snippet "y" } " at the top of the stack, and returns one output. Stack effect declarations can be viewed by browsing source code, or using tools such as " { $link see } ". See " { $link "effect-declaration" } "."
+"All words except those which only push literals on the stack must have a " { $emphasis "stack effect declaration" } ", for example " { $snippet "( x y -- z )" } " denotes that a word takes two inputs, with " { $snippet "y" } " at the top of the stack, and returns one output. Stack effect declarations can be viewed by browsing source code, or using tools such as " { $link see } "; they are also checked by the compiler. See " { $link "effect-declaration" } "."
 $nl
 "Coming back to the example in the beginning of this article, the following series of steps occurs as the code is evaluated:"
 { $table
@@ -41,7 +41,7 @@ ARTICLE: "cookbook-colon-defs" "Shuffle word and definition cookbook"
 "The " { $link dup } " word makes a copy of the value at the top of the stack:"
 { $example "5 dup * ." "25" }
 "The " { $link sq } " word is actually defined as follows:"
-{ $code ": sq dup * ;" }
+{ $code ": sq ( x -- y ) dup * ;" }
 "(You could have looked this up yourself by clicking on the " { $link sq } " word itself.)"
 $nl
 "Note the key elements in a word definition: The colon " { $link POSTPONE: : } " denotes the start of a word definition. The name of the new word must immediately follow. The word definition then continues on until the " { $link POSTPONE: ; } " token signifies the end of the definition. This type of word definition is called a " { $emphasis "compound definition." }
@@ -60,11 +60,13 @@ $nl
     "This syntax will be familiar to anybody who has used Forth before. However the behavior is slightly different. In most Forth systems, the below code prints 2, because the definition of " { $snippet "b" } " still refers to the previous definition of " { $snippet "a" } ":"
     { $code
         ": a 1 ;"
-        ": b a 1 + ;"
+        ": b ( -- x ) a 1 + ;"
         ": a 2 ;"
         "b ."
     }
     "In Factor, this example will print 3 since word redefinition is explicitly supported."
+    $nl
+    "Indeed, redefining a word twice in the same source file is an error; this is almost always a mistake since there's no way to call the first definition. See " { $link "definition-checking" } "."
 }
 { $references
     { "A whole slew of shuffle words can be used to rearrange the stack. There are forms of word definition other than colon definition, words can be defined entirely at runtime, and word definitions can be " { $emphasis "annotated" } " with tracing calls and breakpoints without modifying the source code." }
@@ -180,6 +182,7 @@ $nl
 ARTICLE: "cookbook-io" "Input and output cookbook"
 "Ask the user for their age, and print it back:"
 { $code
+    "USING: io math.parser ;"
     ": ask-age ( -- ) \"How old are you?\" print ;"
     ": read-age ( -- n ) readln string>number ;"
     ": print-age ( n -- )"
@@ -191,22 +194,26 @@ ARTICLE: "cookbook-io" "Input and output cookbook"
 }
 "Print the lines of a file in sorted order:"
 { $code
-    "utf8 \"lines.txt\" file-lines natural-sort [ print ] each"
+    "USING: io io.encodings.utf8 io.files sequences sorting ;"
+    "\"lines.txt\" utf8 file-lines natural-sort [ print ] each"
 }
 "Read 1024 bytes from a file:"
 { $code
+    "USING: io io.encodings.binary io.files ;"
     "\"data.bin\" binary [ 1024 read ] with-file-reader"
 }
 "Convert a file of 4-byte cells from little to big endian or vice versa, by directly mapping it into memory and operating on it with sequence words:"
 { $code
+    "USING: accessors grouping io.files io.mmap kernel sequences ;"
     "\"mydata.dat\" dup file-info size>> ["
     "    4 <sliced-groups> [ reverse-here ] change-each"
     "] with-mapped-file"
 }
 "Send some bytes to a remote host:"
 { $code
-    "\"myhost\" 1033 <inet>"
-    "[ { 12 17 102 } >string write ] with-client"
+    "USING: io io.encodings.ascii io.sockets strings ;"
+    "\"myhost\" 1033 <inet> ascii"
+    "[ B{ 12 17 102 } write ] with-client"
 }
 { $references
     { }
@@ -242,7 +249,7 @@ ARTICLE: "cookbook-application" "Application cookbook"
 }
 "See " { $link POSTPONE: MAIN: } " for details. The " { $link run } " word loads a vocabulary if necessary, and calls its main entry point; try the following, it's fun:"
 { $code "\"tetris\" run" }
-"On Mac OS X and Windows, stand-alone applications can also be deployed; these are genuine, 100% native code double-clickable executables:"
+"Factor can deploy stand-alone executables; they do not have any external dependencies and consist entirely of compiled native machine code:"
 { $code "\"tetris\" deploy-tool" }
 { $references
     { }
diff --git a/extra/bootstrap/image/download/authors.txt b/basis/help/crossref/authors.txt
similarity index 100%
rename from extra/bootstrap/image/download/authors.txt
rename to basis/help/crossref/authors.txt
diff --git a/extra/help/crossref/crossref-docs.factor b/basis/help/crossref/crossref-docs.factor
similarity index 93%
rename from extra/help/crossref/crossref-docs.factor
rename to basis/help/crossref/crossref-docs.factor
index 4331a45490..6ec35b23ce 100644
--- a/extra/help/crossref/crossref-docs.factor
+++ b/basis/help/crossref/crossref-docs.factor
@@ -13,7 +13,7 @@ HELP: help-path
 { $values { "topic" "an article name or a word" } { "seq" "a new sequence" } }
 { $description "Outputs a sequence of all help articles which contain " { $snippet "topic" } " as a subsection, traversing all the way up to the root." }
 { $examples
-    { $example "USING: help.crossref prettyprint ;" "\"sequences\" help-path ." "{ \"collections\" \"handbook\" }" }
+    { $example "USING: help.crossref prettyprint ;" "\"sequences\" help-path ." "{ \"collections\" \"handbook-language-reference\" \"handbook\" }" }
 } ;
 
 HELP: xref-article
diff --git a/extra/help/crossref/crossref-tests.factor b/basis/help/crossref/crossref-tests.factor
similarity index 96%
rename from extra/help/crossref/crossref-tests.factor
rename to basis/help/crossref/crossref-tests.factor
index 1d569d8a8f..2e8c173944 100755
--- a/extra/help/crossref/crossref-tests.factor
+++ b/basis/help/crossref/crossref-tests.factor
@@ -1,7 +1,7 @@
 IN: help.crossref.tests
 USING: help.crossref help.topics help.markup tools.test words
 definitions assocs sequences kernel namespaces parser arrays
-io.streams.string continuations debugger compiler.units ;
+io.streams.string continuations debugger compiler.units eval ;
 
 [ ] [
     "IN: help.crossref.tests USING: help.syntax help.markup ; : foo ; HELP: foo \"foo is great\" ; ARTICLE: \"foo\" \"Foo\" { $subsection foo } ;" eval
diff --git a/extra/help/crossref/crossref.factor b/basis/help/crossref/crossref.factor
similarity index 92%
rename from extra/help/crossref/crossref.factor
rename to basis/help/crossref/crossref.factor
index 54ede93aa1..9eec5b859e 100644
--- a/extra/help/crossref/crossref.factor
+++ b/basis/help/crossref/crossref.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays definitions generic assocs
 io kernel namespaces prettyprint prettyprint.sections
-sequences words inspector classes help.topics help.markup ;
+sequences words summary classes help.topics help.markup ;
 IN: help.crossref
 
 : article-children ( topic -- seq )
diff --git a/extra/help/crossref/summary.txt b/basis/help/crossref/summary.txt
similarity index 100%
rename from extra/help/crossref/summary.txt
rename to basis/help/crossref/summary.txt
diff --git a/extra/bootstrap/image/upload/authors.txt b/basis/help/definitions/authors.txt
similarity index 100%
rename from extra/bootstrap/image/upload/authors.txt
rename to basis/help/definitions/authors.txt
diff --git a/extra/help/definitions/definitions-tests.factor b/basis/help/definitions/definitions-tests.factor
similarity index 87%
rename from extra/help/definitions/definitions-tests.factor
rename to basis/help/definitions/definitions-tests.factor
index 7134c6b0b0..1b8bcccce7 100755
--- a/extra/help/definitions/definitions-tests.factor
+++ b/basis/help/definitions/definitions-tests.factor
@@ -1,6 +1,6 @@
 USING: math definitions help.topics help tools.test
 prettyprint parser io.streams.string kernel source-files
-assocs namespaces words io sequences ;
+assocs namespaces words io sequences eval accessors ;
 IN: help.definitions.tests
 
 [ ] [ \ + >link see ] unit-test
@@ -10,7 +10,7 @@ IN: help.definitions.tests
         "IN: help.definitions.tests USING: help.syntax ; : hello ; HELP: hello \"test\" ; ARTICLE: \"hello\" \"world\" ; ARTICLE: \"hello2\" \"world\" ;" <string-reader> "foo"
         parse-stream drop
 
-        "foo" source-file source-file-definitions first assoc-size
+        "foo" source-file definitions>> first assoc-size
     ] unit-test
 
     [ t ] [ "hello" articles get key? ] unit-test
@@ -23,7 +23,7 @@ IN: help.definitions.tests
         "IN: help.definitions.tests USING: help.syntax ; : hello ; ARTICLE: \"hello\" \"world\" ;" <string-reader> "foo"
         parse-stream drop
 
-        "foo" source-file source-file-definitions first assoc-size
+        "foo" source-file definitions>> first assoc-size
     ] unit-test
 
     [ t ] [ "hello" articles get key? ] unit-test
diff --git a/basis/help/definitions/definitions.factor b/basis/help/definitions/definitions.factor
new file mode 100755
index 0000000000..e5202e1306
--- /dev/null
+++ b/basis/help/definitions/definitions.factor
@@ -0,0 +1,37 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors definitions help help.topics help.syntax
+prettyprint.backend prettyprint words kernel effects ;
+IN: help.definitions
+
+! Definition protocol implementation
+
+M: link definer drop \ ARTICLE: \ ; ;
+
+M: link where name>> article loc>> ;
+
+M: link set-where name>> article (>>loc) ;
+
+M: link forget* name>> remove-article ;
+
+M: link definition article-content ;
+
+M: link synopsis*
+    dup definer.
+    dup name>> pprint*
+    article-title pprint* ;
+
+M: word-link definer drop \ HELP: \ ; ;
+
+M: word-link where name>> "help-loc" word-prop ;
+
+M: word-link set-where name>> swap "help-loc" set-word-prop ;
+
+M: word-link definition name>> "help" word-prop ;
+
+M: word-link synopsis*
+    dup definer.
+    name>> dup pprint-word
+    stack-effect. ;
+
+M: word-link forget* name>> remove-word-help ;
diff --git a/extra/help/definitions/summary.txt b/basis/help/definitions/summary.txt
similarity index 100%
rename from extra/help/definitions/summary.txt
rename to basis/help/definitions/summary.txt
diff --git a/extra/bootstrap/io/authors.txt b/basis/help/handbook/authors.txt
similarity index 100%
rename from extra/bootstrap/io/authors.txt
rename to basis/help/handbook/authors.txt
diff --git a/extra/help/handbook/handbook-tests.factor b/basis/help/handbook/handbook-tests.factor
similarity index 100%
rename from extra/help/handbook/handbook-tests.factor
rename to basis/help/handbook/handbook-tests.factor
diff --git a/extra/help/handbook/handbook.factor b/basis/help/handbook/handbook.factor
similarity index 82%
rename from extra/help/handbook/handbook.factor
rename to basis/help/handbook/handbook.factor
index 863a538b47..1b488b1d48 100755
--- a/extra/help/handbook/handbook.factor
+++ b/basis/help/handbook/handbook.factor
@@ -1,9 +1,10 @@
 USING: help help.markup help.syntax help.definitions help.topics
 namespaces words sequences classes assocs vocabs kernel arrays
 prettyprint.backend kernel.private io generic math system
-strings sbufs vectors byte-arrays bit-arrays float-arrays
-quotations io.streams.byte-array io.encodings.string
-classes.builtin parser ;
+strings sbufs vectors byte-arrays
+quotations io.streams.byte-array
+classes.builtin parser lexer classes.predicate classes.union
+classes.intersection classes.singleton classes.tuple ;
 IN: help.handbook
 
 ARTICLE: "conventions" "Conventions"
@@ -40,8 +41,8 @@ $nl
 "Common terminology and abbreviations used throughout Factor and its documentation:"
 { $table
     { "Term" "Definition" }
-    { "alist" { "an association list. See " { $link "alists" } } }
-    { "assoc" "an associative mapping" }
+    { "alist" { "an association list; see " { $link "alists" } } }
+    { "assoc" { "an associative mapping; see " { $link "assocs" } } }
     { "associative mapping" { "an object whose class implements the " { $link "assocs-protocol" } } }
     { "boolean"               { { $link t } " or " { $link f } } }
     { "class"                 { "a set of objects identified by a " { $emphasis "class word" } " together with a discriminating predicate. See " { $link "classes" } } }
@@ -50,8 +51,9 @@ $nl
     { "generic word"          { "a word whose behavior depends can be specialized on the class of one of its inputs. See " { $link "generic" } } }
     { "method"                { "a specialized behavior of a generic word on a class. See " { $link "generic" } } }
     { "object"                { "any datum which can be identified" } }
+    { "ordering specifier"    { "see " { $link "order-specifiers" } } }
     { "pathname string"       { "an OS-specific pathname which identifies a file" } }
-    { "sequence" { "an object whose class implements the " { $link "sequence-protocol" } } }
+    { "sequence" { "a sequence; see " { $link "sequence-protocol" } } }
     { "slot"                  { "a component of an object which can store a value" } }
     { "stack effect"          { "a pictorial representation of a word's inputs and outputs, for example " { $snippet "+ ( x y -- z )" } ". See " { $link "effects" } } }
     { "true value"            { "any object not equal to " { $link f } } }
@@ -70,37 +72,6 @@ ARTICLE: "evaluator" "Evaluation semantics"
 "If the last action performed is the execution of a word, the current quotation is not saved on the call stack; this is known as " { $snippet "tail-recursion" } " and allows iterative algorithms to execute without incurring unbounded call stack usage."
 { $see-also "compiler" } ;
 
-USING: concurrency.combinators
-concurrency.messaging
-concurrency.promises
-concurrency.futures
-concurrency.locks
-concurrency.semaphores
-concurrency.count-downs
-concurrency.exchangers
-concurrency.flags ;
-
-ARTICLE: "concurrency" "Concurrency"
-"Factor supports a variety of concurrency abstractions, however they are mostly used to multiplex input/output operations since the thread scheduling is co-operative and only one CPU is used at a time."
-$nl
-"Factor's concurrency support was insipired by Erlang, Termite, Scheme48 and Java's " { $snippet "java.util.concurrent" } " library."
-$nl
-"The basic building blocks:"
-{ $subsection "threads" }
-"High-level abstractions:"
-{ $subsection "concurrency.combinators" }
-{ $subsection "concurrency.promises" }
-{ $subsection "concurrency.futures" }
-{ $subsection "concurrency.mailboxes" }
-{ $subsection "concurrency.messaging" }
-"Shared-state abstractions:"
-{ $subsection "concurrency.locks" }
-{ $subsection "concurrency.semaphores" }
-{ $subsection "concurrency.count-downs" }
-{ $subsection "concurrency.exchangers" }
-{ $subsection "concurrency.flags" }
-"Other concurrency abstractions include " { $vocab-link "concurrency.distributed" } " and " { $vocab-link "channels" } "." ;
-
 ARTICLE: "objects" "Objects"
 "An " { $emphasis "object" } " is any datum which may be identified. All values are objects in Factor. Each object carries type information, and types are checked at runtime; Factor is dynamically typed."
 { $subsection "equality" }
@@ -128,7 +99,9 @@ ARTICLE: "numbers" "Numbers"
 "Advanced features:"
 { $subsection "math-vectors" }
 { $subsection "math-intervals" }
-{ $subsection "math-bitfields" } ;
+{ $subsection "math-bitfields" }
+"Implementation:"
+{ $subsection "math.libm" } ;
 
 USE: io.buffers
 
@@ -140,32 +113,33 @@ ARTICLE: "collections" "Collections"
 { $subsection "quotations" }
 "Fixed-length specialized sequences:"
 { $subsection "strings" }
-{ $subsection "bit-arrays" }
 { $subsection "byte-arrays" }
-{ $subsection "float-arrays" }
-"Resizable sequence:"
+"Resizable sequences:"
 { $subsection "vectors" }
-"Resizable specialized sequences:"
+{ $subsection "byte-vectors" }
 { $subsection "sbufs" }
-{ $vocab-subsection "Bit vectors" "bit-vectors" }
-{ $vocab-subsection "Byte vectors" "byte-vectors" }
-{ $vocab-subsection "Float vectors" "float-vectors" }
+{ $subsection "growable" }
 { $heading "Associative mappings" }
 { $subsection "assocs" }
 { $subsection "namespaces" }
+{ $subsection "refs" }
 "Implementations:"
 { $subsection "hashtables" }
 { $subsection "alists" }
 { $subsection "enums" }
+{ $heading "Double-ended queues" }
+{ $subsection "deques" }
+"Implementations:"
+{ $subsection "dlists" }
+{ $subsection "search-deques" }
 { $heading "Other collections" }
 { $subsection "boxes" }
-{ $subsection "dlists" }
 { $subsection "heaps" }
 { $subsection "graphs" }
-{ $subsection "buffers" } ;
+{ $subsection "buffers" }
+"There are many other collections in " { $snippet "extra/" } ", such as " { $vocab-link "disjoint-sets" } ", " { $vocab-link "persistent-vectors" } ", and " { $vocab-link "tuple-arrays" } "." ;
 
-USING: io.sockets io.launcher io.mmap io.monitors
-io.encodings.utf8 io.encodings.utf16 io.encodings.binary io.encodings.ascii io.files ;
+USING: io.encodings.utf8 io.encodings.utf16 io.encodings.binary io.encodings.ascii io.files ;
 
 ARTICLE: "encodings-introduction" "An introduction to encodings"
 "In order to express text in terms of binary, some sort of encoding has to be used. In a modern context, this is understood as a two-way mapping between Unicode code points (characters) and some amount of binary. Since English isn't the only language in the world, ASCII is not sufficient as a mapping from binary to Unicode; it can't even express em-dashes or curly quotes. Unicode was designed as a universal character set that could potentially represent everything." $nl
@@ -186,6 +160,10 @@ $nl
 ARTICLE: "io" "Input and output"
 { $heading "Streams" }
 { $subsection "streams" }
+{ $subsection "io.files" }
+{ $heading "Encodings" }
+{ $subsection "encodings-introduction" }
+{ $subsection "io.encodings" }
 "Wrapper streams:"
 { $subsection "io.streams.duplex" }
 { $subsection "io.streams.plain" }
@@ -194,21 +172,10 @@ ARTICLE: "io" "Input and output"
 "Utilities:"
 { $subsection "stream-binary" }
 { $subsection "styles" }
-{ $heading "Encodings" }
-{ $subsection "encodings-introduction" }
-{ $subsection "io.encodings" }
-{ $subsection "io.encodings.string" }
-{ $heading "Files" }
-{ $subsection "io.files" }
-{ $subsection "io.mmap" }
-{ $subsection "io.monitors" }
-{ $heading "Communications" }
-{ $subsection "network-streams" }
-{ $subsection "io.launcher" }
-{ $subsection "io.pipes" }
-{ $heading "Other features" }
-{ $subsection "io.timeouts" }
 { $subsection "checksums" }
+"Implementation:"
+{ $subsection "io.streams.c" }
+{ $subsection "io.ports" }
 { $see-also "destructors" } ;
 
 ARTICLE: "tools" "Developer tools"
@@ -218,6 +185,8 @@ ARTICLE: "tools" "Developer tools"
 { $subsection "listener" }
 { $subsection "tools.crossref" }
 { $subsection "inspector" }
+{ $subsection "tools.completion" }
+{ $subsection "summary" }
 "Debugging tools:"
 { $subsection "tools.annotations" }
 { $subsection "tools.test" }
@@ -243,55 +212,73 @@ ARTICLE: "type-index" "Type index"
 { $index [ builtins get sift ] } ;
 
 ARTICLE: "class-index" "Class index"
-{ $index [ classes ] } ;
+{ $heading "Built-in classes" }
+{ $index [ classes [ builtin-class? ] filter ] }
+{ $heading "Tuple classes" }
+{ $index [ classes [ tuple-class? ] filter ] }
+{ $heading "Singleton classes" }
+{ $index [ classes [ singleton-class? ] filter ] }
+{ $heading "Union classes" }
+{ $index [ classes [ union-class? ] filter ] }
+{ $heading "Intersection classes" }
+{ $index [ classes [ intersection-class? ] filter ] }
+{ $heading "Predicate classes" }
+{ $index [ classes [ predicate-class? ] filter ] } ;
 
 ARTICLE: "program-org" "Program organization"
 { $subsection "definitions" }
 { $subsection "vocabularies" }
 { $subsection "parser" }
-{ $subsection "vocabs.loader" } ;
+{ $subsection "vocabs.loader" }
+{ $subsection "source-files" } ;
 
 USING: help.cookbook help.tutorial ;
 
-ARTICLE: "handbook" "Factor documentation"
-"Welcome to Factor."
-{ $heading "Starting points" }
-{ $subsection "cookbook" }
-{ $subsection "first-program" }
-{ $subsection "vocab-index" }
-{ $heading "Language reference" }
+ARTICLE: "handbook-language-reference" "Language reference"
 { $subsection "conventions" }
 { $subsection "syntax" }
 { $subsection "dataflow" }
 { $subsection "objects" }
 { $subsection "program-org" }
-{ $heading "Library reference" }
 { $subsection "numbers" }
 { $subsection "collections" }
-{ $subsection "io" }
-{ $subsection "concurrency" }
-{ $subsection "system" }
-{ $subsection "alien" }
-{ $heading "Environment reference" }
-{ $subsection "cli" }
-{ $subsection "images" }
+{ $subsection "io" } ;
+
+ARTICLE: "handbook-environment-reference" "Environment reference"
 { $subsection "prettyprint" }
 { $subsection "tools" }
+{ $subsection "cli" }
+{ $subsection "rc-files" }
 { $subsection "help" }
 { $subsection "inference" }
 { $subsection "compiler" }
+{ $subsection "system" }
+{ $subsection "images" }
+{ $subsection "alien" }
+{ $subsection "init" }
 { $subsection "layouts" }
-{ $heading "User interface" }
-{ $about "ui" }
-{ $about "ui.tools" }
-{ $heading "Index" }
+{ $see-also "program-org" } ;
+
+ARTICLE: "handbook-library-reference" "Library reference"
+"This index only includes articles from loaded vocabularies. To explore more vocabularies, see " { $link "vocab-index" } "."
+{ $index [ "handbook" orphan-articles remove ] } ;
+
+ARTICLE: "handbook" "Factor documentation"
+"Welcome to Factor."
+$nl
+"Explore the code base:"
+{ $subsection "vocab-index" }
+"Learn the language:"
+{ $subsection "cookbook" }
+{ $subsection "first-program" }
+{ $subsection "handbook-language-reference" }
+{ $subsection "handbook-environment-reference" }
+{ $subsection "handbook-library-reference" }
+"The below indices only include articles from loaded vocabularies. To explore more vocabularies, see " { $link "vocab-index" } "."
+{ $subsection "article-index" }
 { $subsection "primitive-index" }
 { $subsection "error-index" }
 { $subsection "type-index" }
 { $subsection "class-index" } ;
 
-{ <array> <string> <sbuf> <vector> <byte-array> <bit-array> <float-array> }
-related-words
-
-{ >array >quotation >string >sbuf >vector >byte-array >bit-array >float-array }
-related-words
+ABOUT: "handbook"
diff --git a/extra/help/handbook/summary.txt b/basis/help/handbook/summary.txt
similarity index 100%
rename from extra/help/handbook/summary.txt
rename to basis/help/handbook/summary.txt
diff --git a/extra/help/help-docs.factor b/basis/help/help-docs.factor
similarity index 95%
rename from extra/help/help-docs.factor
rename to basis/help/help-docs.factor
index f20ce89263..643e121f5e 100755
--- a/extra/help/help-docs.factor
+++ b/basis/help/help-docs.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.crossref help.stylesheet help.topics
-help.syntax definitions io prettyprint inspector arrays math
+help.syntax definitions io prettyprint summary arrays math
 sequences vocabs ;
 IN: help
 
@@ -14,6 +14,7 @@ ARTICLE: "span-elements" "Span elements"
 { $subsection $link }
 { $subsection $vocab-link }
 { $subsection $snippet }
+{ $subsection $slot }
 { $subsection $url } ;
 
 ARTICLE: "block-elements" "Block elements"
@@ -84,6 +85,7 @@ $nl
     { "or an array of the form " { $snippet "{ $directive content... }" } ", where " { $snippet "$directive" } " is a markup word whose name starts with " { $snippet "$" } ", and " { $snippet "content..." } " is a series of markup elements" }
 }
 { $subsection "element-types" }
+{ $subsection "printing-elements" }
 "Related words can be cross-referenced:"
 { $subsection related-words }
 { $see-also "help.lint" } ;
@@ -211,6 +213,18 @@ HELP: $code
     { $markup-example { $code "2 2 + ." } }
 } ;
 
+HELP: $nl
+{ $values { "children" "unused parameter" } }
+{ $description "Prints a paragraph break. The parameter is unused." } ;
+
+HELP: $snippet
+{ $values { "children" "markup elements" } }
+{ $description "Prints a key word or otherwise notable snippet of text, such as a type or a word input parameter. To document slot names, use " { $link $slot } "." } ;
+
+HELP: $slot
+{ $values { "children" "markup elements" } }
+{ $description "Prints a tuple slot name in the same way as a snippet. The help tool can check that there exists an accessor with this name." } ;
+
 HELP: $vocabulary
 { $values { "element" "a markup element of the form " { $snippet "{ word }" } } }
 { $description "Prints a word's vocabulary. This markup element is automatically output by the help system, so help descriptions of parsing words should not call it." } ;
@@ -398,5 +412,5 @@ HELP: ABOUT:
 { $description "Defines the main documentation article for the current vocabulary." } ;
 
 HELP: vocab-help
-{ $values { "vocab" "a vocabulary specifier" } { "help" "a help article" } }
+{ $values { "vocab-spec" "a vocabulary specifier" } { "help" "a help article" } }
 { $description "Outputs the main help article for a vocabulary. The main help article can be set with " { $link POSTPONE: ABOUT:  } "." } ;
diff --git a/extra/help/help-tests.factor b/basis/help/help-tests.factor
similarity index 100%
rename from extra/help/help-tests.factor
rename to basis/help/help-tests.factor
diff --git a/extra/help/help.factor b/basis/help/help.factor
similarity index 76%
rename from extra/help/help.factor
rename to basis/help/help.factor
index 75a14e645b..b2fff22372 100755
--- a/extra/help/help.factor
+++ b/basis/help/help.factor
@@ -1,10 +1,10 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays io kernel namespaces parser prettyprint sequences
-words assocs definitions generic quotations effects slots
-continuations classes.tuple debugger combinators vocabs
-help.stylesheet help.topics help.crossref help.markup sorting
-classes vocabs.loader ;
+USING: accessors arrays io io.styles kernel namespaces parser
+prettyprint sequences words assocs definitions generic
+quotations effects slots continuations classes.tuple debugger
+combinators vocabs help.stylesheet help.topics help.crossref
+help.markup sorting classes vocabs.loader ;
 IN: help
 
 GENERIC: word-help* ( word -- content )
@@ -31,6 +31,10 @@ M: predicate word-help* drop \ $predicate ;
     articles get keys
     all-words [ word-help ] filter append ;
 
+: orphan-articles ( -- seq )
+    articles get keys
+    [ article-parent not ] filter ;
+
 : xref-help ( -- )
     all-articles [ xref-article ] each ;
 
@@ -43,15 +47,15 @@ M: predicate word-help* drop \ $predicate ;
 : all-errors ( -- seq )
     all-words [ error? ] filter sort-articles ;
 
-M: word article-name word-name ;
+M: word article-name name>> ;
 
 M: word article-title
-    dup parsing? over symbol? or [
-        word-name
+    dup [ parsing-word? ] [ symbol? ] bi or [
+        name>> 
     ] [
-        dup word-name
-        swap stack-effect
-        [ effect>string " " swap 3append ] when*
+        [ name>> ]
+        [ stack-effect [ effect>string " " prepend ] [ "" ] if* ] bi
+        append
     ] if ;
 
 M: word article-content
@@ -68,15 +72,13 @@ M: word article-parent "help-parent" word-prop ;
 M: word set-article-parent swap "help-parent" set-word-prop ;
 
 : $doc-path ( article -- )
-    help-path dup empty? [
-        drop
-    ] [
+    help-path [
         [
             help-path-style get [
                 "Parent topics: " write $links
             ] with-style
         ] ($block)
-    ] if ;
+    ] unless-empty ;
 
 : $title ( topic -- )
     title-style get [
@@ -108,21 +110,12 @@ M: word set-article-parent swap "help-parent" set-word-prop ;
     sort-articles [ \ $subsection swap 2array ] map print-element ;
 
 : $index ( element -- )
-    first call dup empty?
-    [ drop ] [ [ ($index) ] ($block) ] if ;
+    first call [ ($index) ] unless-empty ;
 
 : $about ( element -- )
     first vocab-help [ 1array $subsection ] when* ;
 
-: (:help-multi)
-    "This error has multiple delegates:" print
-    ($index) nl
-    "Use \\ ... help to get help about a specific delegate." print ;
-
-: (:help-none)
-    drop "No help for this error. " print ;
-
-: (:help-debugger)
+: :help-debugger ( -- )
     nl
     "Debugger commands:" print
     nl
@@ -135,12 +128,8 @@ M: word set-article-parent swap "help-parent" set-word-prop ;
     ":vars - list all variables at error time" print ;
 
 : :help ( -- )
-    error get delegates [ error-help ] map sift
-    {
-        { [ dup empty? ] [ (:help-none) ] }
-        { [ dup length 1 = ] [ first help ] }
-        [ (:help-multi) ]
-    } cond (:help-debugger) ;
+    error get error-help [ help ] [ "No help for this error. " print ] if*
+    :help-debugger ;
 
 : remove-article ( name -- )
     dup articles get key? [
diff --git a/basis/help/html/html.factor b/basis/help/html/html.factor
new file mode 100644
index 0000000000..b1bf8958a8
--- /dev/null
+++ b/basis/help/html/html.factor
@@ -0,0 +1,5 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+IN: help.html
+
+
diff --git a/extra/bootstrap/tools/authors.txt b/basis/help/lint/authors.txt
similarity index 100%
rename from extra/bootstrap/tools/authors.txt
rename to basis/help/lint/authors.txt
diff --git a/extra/help/lint/lint-docs.factor b/basis/help/lint/lint-docs.factor
similarity index 100%
rename from extra/help/lint/lint-docs.factor
rename to basis/help/lint/lint-docs.factor
diff --git a/extra/help/lint/lint.factor b/basis/help/lint/lint.factor
similarity index 68%
rename from extra/help/lint/lint.factor
rename to basis/help/lint/lint.factor
index a9ec7f9267..4ad9067457 100755
--- a/extra/help/lint/lint.factor
+++ b/basis/help/lint/lint.factor
@@ -1,11 +1,11 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: sequences parser kernel help help.markup help.topics
-words strings classes tools.vocabs namespaces io
+USING: fry accessors sequences parser kernel help help.markup
+help.topics words strings classes tools.vocabs namespaces io
 io.streams.string prettyprint definitions arrays vectors
-combinators splitting debugger hashtables sorting effects vocabs
-vocabs.loader assocs editors continuations classes.predicate
-macros combinators.lib sequences.lib math sets ;
+combinators combinators.short-circuit splitting debugger
+hashtables sorting effects vocabs vocabs.loader assocs editors
+continuations classes.predicate macros math sets eval ;
 IN: help.lint
 
 : check-example ( element -- )
@@ -27,13 +27,10 @@ IN: help.lint
     ] unless ;
 
 : effect-values ( word -- seq )
-    stack-effect dup effect-in swap effect-out append [
-        {
-            { [ dup word? ] [ word-name ] }
-            { [ dup integer? ] [ drop "object" ] }
-            { [ dup string? ] [ ] }
-        } cond
-    ] map prune natural-sort ;
+    stack-effect
+    [ in>> ] [ out>> ] bi append
+    [ dup pair? [ first ] when effect>string ] map
+    prune natural-sort ;
 
 : contains-funky-elements? ( element -- ? )
     {
@@ -42,20 +39,19 @@ IN: help.lint
         $predicate
         $class-description
         $error-description
-    } swap [ elements f like ] curry contains? ;
+    } swap '[ , elements empty? not ] contains? ;
 
 : check-values ( word element -- )
     {
-        [ over "declared-effect" word-prop ]
-        [ dup contains-funky-elements? not ]
-        [ over macro? not ]
+        [ drop "declared-effect" word-prop not ]
+        [ nip contains-funky-elements? ]
+        [ drop macro? ]
         [
-            2dup extract-values >array
-            >r effect-values >array
-            r> assert=
-            t
+            [ effect-values >array ]
+            [ extract-values >array ]
+            bi* =
         ]
-    } && 3drop ;
+    } 2|| [ "$values don't match stack effect" throw ] unless ;
 
 : check-see-also ( word element -- )
     nip \ $see-also swap elements [
@@ -77,14 +73,13 @@ IN: help.lint
 : all-word-help ( words -- seq )
     [ word-help ] filter ;
 
-TUPLE: help-error topic ;
+TUPLE: help-error topic error ;
 
-: <help-error> ( topic delegate -- error )
-    { set-help-error-topic set-delegate } help-error construct ;
+C: <help-error> help-error
 
 M: help-error error.
-    "In " write dup help-error-topic ($link) nl
-    delegate error. ;
+    "In " write dup topic>> pprint nl
+    error>> error. ;
 
 : check-something ( obj quot -- )
     flush [ <help-error> , ] recover ; inline
@@ -113,37 +108,42 @@ M: help-error error.
     articles get keys
     vocabs [ dup vocab-docs-path swap ] H{ } map>assoc
     H{ } clone [
-        [
-            >r >r dup >link where ?first r> at r> [ ?push ] change-at
-        ] 2curry each
+        '[
+            dup >link where dup
+            [ first , at , push-at ] [ 2drop ] if
+        ] each
     ] keep ;
 
+: check-about ( vocab -- )
+    [ vocab-help [ article drop ] when* ] check-something ;
+
 : check-vocab ( vocab -- seq )
     "Checking " write dup write "..." print
     [
-        dup words [ check-word ] each
-        "vocab-articles" get at [ check-article ] each
+        [ check-about ]
+        [ words [ check-word ] each ]
+        [ "vocab-articles" get at [ check-article ] each ]
+        tri
     ] { } make ;
 
 : run-help-lint ( prefix -- alist )
     [
         all-vocabs-seq [ vocab-name ] map "all-vocabs" set
-        articles get keys "group-articles" set
+        group-articles "vocab-articles" set
         child-vocabs
         [ dup check-vocab ] { } map>assoc
         [ nip empty? not ] assoc-filter
     ] with-scope ;
 
 : typos. ( assoc -- )
-    dup empty? [
-        drop
+    [
         "==== ALL CHECKS PASSED" print
     ] [
         [
             swap vocab-heading.
             [ error. nl ] each
         ] assoc-each
-    ] if ;
+    ] if-empty ;
 
 : help-lint ( prefix -- ) run-help-lint typos. ;
 
diff --git a/extra/help/lint/summary.txt b/basis/help/lint/summary.txt
similarity index 100%
rename from extra/help/lint/summary.txt
rename to basis/help/lint/summary.txt
diff --git a/extra/editors/tags.txt b/basis/help/lint/tags.txt
similarity index 100%
rename from extra/editors/tags.txt
rename to basis/help/lint/tags.txt
diff --git a/extra/bootstrap/ui/authors.txt b/basis/help/markup/authors.txt
similarity index 100%
rename from extra/bootstrap/ui/authors.txt
rename to basis/help/markup/authors.txt
diff --git a/extra/help/markup/markup-tests.factor b/basis/help/markup/markup-tests.factor
similarity index 68%
rename from extra/help/markup/markup-tests.factor
rename to basis/help/markup/markup-tests.factor
index 6b138a18ab..222c4e7d3f 100644
--- a/extra/help/markup/markup-tests.factor
+++ b/basis/help/markup/markup-tests.factor
@@ -1,13 +1,13 @@
 USING: definitions help help.markup kernel sequences tools.test
-words parser namespaces assocs generic io.streams.string ;
+words parser namespaces assocs generic io.streams.string accessors ;
 IN: help.markup.tests
 
 TUPLE: blahblah quux ;
 
 [ "an int" ] [ [ { "int" } $instance ] with-string-writer ] unit-test
 
-[ ] [ \ blahblah-quux help ] unit-test
-[ ] [ \ set-blahblah-quux help ] unit-test
+[ ] [ \ quux>> help ] unit-test
+[ ] [ \ >>quux help ] unit-test
 [ ] [ \ blahblah? help ] unit-test
 
 : fooey "fooey" throw ;
diff --git a/extra/help/markup/markup.factor b/basis/help/markup/markup.factor
similarity index 80%
rename from extra/help/markup/markup.factor
rename to basis/help/markup/markup.factor
index 378dd1e2fe..3077a93ed4 100755
--- a/extra/help/markup/markup.factor
+++ b/basis/help/markup/markup.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions generic io kernel assocs hashtables
-namespaces parser prettyprint sequences strings io.styles
-vectors words math sorting splitting classes
-slots vocabs help.stylesheet help.topics vocabs.loader ;
+USING: accessors arrays definitions generic io kernel assocs
+hashtables namespaces parser prettyprint sequences strings
+io.styles vectors words math sorting splitting classes slots
+vocabs help.stylesheet help.topics vocabs.loader alias ;
 IN: help.markup
 
 ! Simple markup language.
@@ -15,15 +15,15 @@ IN: help.markup
 ! Element types are words whose name begins with $.
 
 PREDICATE: simple-element < array
-    dup empty? [ drop t ] [ first word? not ] if ;
+    [ t ] [ first word? not ] if-empty ;
 
 SYMBOL: last-element
 SYMBOL: span
 SYMBOL: block
 SYMBOL: table
 
-: last-span? last-element get span eq? ;
-: last-block? last-element get block eq? ;
+: last-span? ( -- ? ) last-element get span eq? ;
+: last-block? ( -- ? ) last-element get block eq? ;
 
 : ($span) ( quot -- )
     last-block? [ nl ] when
@@ -58,18 +58,26 @@ M: f print-element drop ;
 
 ! Some spans
 
-: $snippet [ snippet-style get print-element* ] ($span) ;
+: $snippet ( children -- )
+    [ snippet-style get print-element* ] ($span) ;
 
-: $emphasis [ emphasis-style get print-element* ] ($span) ;
+! for help-lint
+ALIAS: $slot $snippet
 
-: $strong [ strong-style get print-element* ] ($span) ;
+: $emphasis ( children -- )
+    [ emphasis-style get print-element* ] ($span) ;
 
-: $url [ url-style get print-element* ] ($span) ;
+: $strong ( children -- )
+    [ strong-style get print-element* ] ($span) ;
 
-: $nl nl nl drop ;
+: $url ( children -- )
+    [ url-style get print-element* ] ($span) ;
+
+: $nl ( children -- )
+    nl nl drop ;
 
 ! Some blocks
-: ($heading)
+: ($heading) ( children quot -- )
     last-element get [ nl ] when ($block) ; inline
 
 : $heading ( element -- )
@@ -138,13 +146,13 @@ M: f print-element drop ;
     link-style get [ write-object ] with-style ;
 
 : ($link) ( article -- )
-    [ dup article-name swap >link write-link ] ($span) ;
+    [ [ article-name ] [ >link ] bi write-link ] ($span) ;
 
 : $link ( element -- )
     first ($link) ;
 
 : ($long-link) ( object -- )
-    dup article-title swap >link write-link ;
+    [ article-title ] [ >link ] bi write-link ;
 
 : ($subsection) ( element quot -- )
     [
@@ -173,7 +181,7 @@ M: f print-element drop ;
     first dup vocab-name swap ($vocab-link) ;
 
 : $vocabulary ( element -- )
-    first word-vocabulary [
+    first vocabulary>> [
         "Vocabulary" $heading nl dup ($vocab-link)
     ] when* ;
 
@@ -183,6 +191,9 @@ M: f print-element drop ;
 : $links ( topics -- )
     [ [ ($link) ] textual-list ] ($span) ;
 
+: $vocab-links ( vocabs -- )
+    [ vocab ] map $links ;
+
 : $see-also ( topics -- )
     "See also" $heading $links ;
 
@@ -190,8 +201,8 @@ M: f print-element drop ;
     dup [ "related" set-word-prop ] curry each ;
 
 : $related ( element -- )
-    first dup "related" word-prop remove dup empty?
-    [ drop ] [ $see-also ] if ;
+    first dup "related" word-prop remove
+    [ $see-also ] unless-empty ;
 
 : ($grid) ( style quot -- )
     [
@@ -225,12 +236,12 @@ M: f print-element drop ;
 GENERIC: ($instance) ( element -- )
 
 M: word ($instance)
-    dup word-name a/an write bl ($link) ;
+    dup name>> a/an write bl ($link) ;
 
 M: string ($instance)
     dup a/an write bl $snippet ;
 
-: $instance first ($instance) ;
+: $instance ( children -- ) first ($instance) ;
 
 : values-row ( seq -- seq )
     unclip \ $snippet swap ?word-name 2array
@@ -250,14 +261,16 @@ M: string ($instance)
 : $notes ( element -- )
     "Notes" $heading print-element ;
 
-: ($see) ( word -- )
+: ($see) ( word quot -- )
     [
         snippet-style get [
-            code-style get [ see ] with-nesting
+            code-style get swap with-nesting
         ] with-style
-    ] ($block) ;
+    ] ($block) ; inline
 
-: $see ( element -- ) first ($see) ;
+: $see ( element -- ) first [ see ] ($see) ;
+
+: $synopsis ( element -- ) first [ synopsis write ] ($see) ;
 
 : $definition ( element -- )
     "Definition" $heading $see ;
@@ -278,18 +291,23 @@ M: string ($instance)
     drop
     "Shuffle word. Re-arranges the stack according to the stack effect pattern." $description ;
 
-: $low-level-note
+: $low-level-note ( children -- )
     drop
     "Calling this word directly is not necessary in most cases. Higher-level words call it automatically." $notes ;
 
-: $values-x/y
+: $values-x/y ( children -- )
     drop { { "x" number } { "y" number } } $values ;
 
-: $io-error
+: $parsing-note ( children -- )
+    drop
+    "This word should only be called from parsing words."
+    $notes ;
+
+: $io-error ( children -- )
     drop
     "Throws an error if the I/O operation fails." $errors ;
 
-: $prettyprinting-note
+: $prettyprinting-note ( children -- )
     drop {
         "This word should only be called from inside the "
         { $link with-pprint } " combinator."
diff --git a/extra/help/markup/summary.txt b/basis/help/markup/summary.txt
similarity index 100%
rename from extra/help/markup/summary.txt
rename to basis/help/markup/summary.txt
diff --git a/extra/bootstrap/ui/tools/authors.txt b/basis/help/stylesheet/authors.txt
similarity index 100%
rename from extra/bootstrap/ui/tools/authors.txt
rename to basis/help/stylesheet/authors.txt
diff --git a/extra/help/stylesheet/stylesheet.factor b/basis/help/stylesheet/stylesheet.factor
similarity index 81%
rename from extra/help/stylesheet/stylesheet.factor
rename to basis/help/stylesheet/stylesheet.factor
index 68810e2369..50357db8cf 100755
--- a/extra/help/stylesheet/stylesheet.factor
+++ b/basis/help/stylesheet/stylesheet.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2005, 2006 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io.styles namespaces ;
+USING: io.styles namespaces colors ;
 IN: help.stylesheet
 
 SYMBOL: default-span-style
@@ -17,7 +17,7 @@ H{
 
 SYMBOL: link-style
 H{
-    { foreground { 0 0 0.3 1 } }
+    { foreground T{ rgba f 0 0 0.3 1 } }
     { font-style bold }
 } link-style set-global
 
@@ -33,7 +33,7 @@ H{
     { font-size 18 }
     { font-style bold }
     { wrap-margin 500 }
-    { page-color { 0.8 0.8 0.8 1 } }
+    { page-color T{ rgba f 0.8 0.8 0.8 1 } }
     { border-width 5 }
 } title-style set-global
 
@@ -58,12 +58,12 @@ SYMBOL: snippet-style
 H{
     { font "monospace" }
     { font-size 12 }
-    { foreground { 0.1 0.1 0.4 1 } }
+    { foreground T{ rgba f 0.1 0.1 0.4 1 } }
 } snippet-style set-global
 
 SYMBOL: code-style
 H{
-    { page-color { 0.8 0.8 0.8 0.5 } }
+    { page-color T{ rgba f 0.8 0.8 0.8 0.5 } }
     { border-width 5 }
     { wrap-margin f }
 } code-style set-global
@@ -74,13 +74,13 @@ H{ { font-style bold } } input-style set-global
 SYMBOL: url-style
 H{
     { font "monospace" }
-    { foreground { 0.0 0.0 1.0 1.0 } }
+    { foreground T{ rgba f 0.0 0.0 1.0 1.0 } }
 } url-style set-global
 
 SYMBOL: warning-style
 H{
-    { page-color { 0.95 0.95 0.95 1 } }
-    { border-color { 1 0 0 1 } }
+    { page-color T{ rgba f 0.95 0.95 0.95 1 } }
+    { border-color T{ rgba f 1 0 0 1 } }
     { border-width 5 }
     { wrap-margin 500 }
 } warning-style set-global
@@ -93,7 +93,7 @@ H{
 SYMBOL: table-style
 H{
     { table-gap { 5 5 } }
-    { table-border { 0.8 0.8 0.8 1.0 } }
+    { table-border T{ rgba f 0.8 0.8 0.8 1.0 } }
 } table-style set-global
 
 SYMBOL: list-style
diff --git a/extra/help/stylesheet/summary.txt b/basis/help/stylesheet/summary.txt
similarity index 100%
rename from extra/help/stylesheet/summary.txt
rename to basis/help/stylesheet/summary.txt
diff --git a/extra/help/summary.txt b/basis/help/summary.txt
similarity index 100%
rename from extra/help/summary.txt
rename to basis/help/summary.txt
diff --git a/extra/cocoa/application/authors.txt b/basis/help/syntax/authors.txt
similarity index 100%
rename from extra/cocoa/application/authors.txt
rename to basis/help/syntax/authors.txt
diff --git a/extra/help/syntax/summary.txt b/basis/help/syntax/summary.txt
similarity index 100%
rename from extra/help/syntax/summary.txt
rename to basis/help/syntax/summary.txt
diff --git a/extra/help/syntax/syntax-tests.factor b/basis/help/syntax/syntax-tests.factor
similarity index 62%
rename from extra/help/syntax/syntax-tests.factor
rename to basis/help/syntax/syntax-tests.factor
index bcf92b77c7..e7438edd4d 100755
--- a/extra/help/syntax/syntax-tests.factor
+++ b/basis/help/syntax/syntax-tests.factor
@@ -1,5 +1,6 @@
+USING: kernel tools.test parser vocabs help.syntax namespaces
+eval accessors ;
 IN: help.syntax.tests
-USING: tools.test parser vocabs help.syntax namespaces ;
 
 [
     [ "foobar" ] [
@@ -12,10 +13,5 @@ USING: tools.test parser vocabs help.syntax namespaces ;
         "help.syntax.tests" vocab vocab-help
     ] unit-test
     
-    SYMBOL: xyz
-    
-    [ xyz ] [
-        "IN: help.syntax.tests USE: help.syntax ABOUT: xyz" eval
-        "help.syntax.tests" vocab vocab-help
-    ] unit-test
+    [ ] [ "help.syntax.tests" vocab f >>help drop ] unit-test
 ] with-file-vocabs
diff --git a/extra/help/syntax/syntax.factor b/basis/help/syntax/syntax.factor
similarity index 74%
rename from extra/help/syntax/syntax.factor
rename to basis/help/syntax/syntax.factor
index 65120a5d01..42d5ba1781 100755
--- a/extra/help/syntax/syntax.factor
+++ b/basis/help/syntax/syntax.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel parser sequences words help help.topics
-namespaces vocabs definitions compiler.units ;
+USING: accessors arrays kernel parser sequences words help
+help.topics namespaces vocabs definitions compiler.units ;
 IN: help.syntax
 
 : HELP:
@@ -16,7 +16,6 @@ IN: help.syntax
     over add-article >link r> remember-definition ; parsing
 
 : ABOUT:
-    scan-object
     in get vocab
     dup changed-definition
-    set-vocab-help ; parsing
+    scan-object >>help drop ; parsing
diff --git a/extra/cocoa/authors.txt b/basis/help/topics/authors.txt
similarity index 100%
rename from extra/cocoa/authors.txt
rename to basis/help/topics/authors.txt
diff --git a/extra/help/topics/summary.txt b/basis/help/topics/summary.txt
similarity index 100%
rename from extra/help/topics/summary.txt
rename to basis/help/topics/summary.txt
diff --git a/extra/help/topics/topics-docs.factor b/basis/help/topics/topics-docs.factor
similarity index 88%
rename from extra/help/topics/topics-docs.factor
rename to basis/help/topics/topics-docs.factor
index 8afdb59245..08195ee07d 100644
--- a/extra/help/topics/topics-docs.factor
+++ b/basis/help/topics/topics-docs.factor
@@ -1,5 +1,6 @@
-USING: help.markup help.syntax help.topics help.crossref help io
-hashtables ;
+USING: help.markup help.syntax help.crossref help io io.styles
+hashtables strings ;
+IN: help.topics
 
 HELP: articles
 { $var-description "Hashtable mapping article names to " { $link article } " instances." } ;
@@ -14,11 +15,11 @@ HELP: article
 { $description "Outputs a named " { $link article } " object." } ;
 
 HELP: article-title
-{ $values { "article" "an article name or a word" } { "title" "a string" } }
+{ $values { "topic" "an article name or a word" } { "string" string } }
 { $description "Outputs the title of a specific help article." } ;
 
 HELP: article-content
-{ $values { "article" "an article name or a word" } { "content" "a markup element" } }
+{ $values { "topic" "an article name or a word" } { "content" "a markup element" } }
 { $description "Outputs the content of a specific help article." } ;
 
 HELP: all-articles
diff --git a/extra/help/topics/topics-tests.factor b/basis/help/topics/topics-tests.factor
similarity index 60%
rename from extra/help/topics/topics-tests.factor
rename to basis/help/topics/topics-tests.factor
index 1099f747bc..f53bdee9c7 100644
--- a/extra/help/topics/topics-tests.factor
+++ b/basis/help/topics/topics-tests.factor
@@ -1,8 +1,13 @@
-USING: definitions help help.topics help.crossref help.markup
-help.syntax kernel sequences tools.test words parser namespaces
-assocs source-files ;
+USING: accessors definitions help help.topics help.crossref
+help.markup help.syntax kernel sequences tools.test words parser
+namespaces assocs source-files eval ;
 IN: help.topics.tests
 
+\ article-name must-infer
+\ article-title must-infer
+\ article-content must-infer
+\ article-parent must-infer
+
 ! Test help cross-referencing
 
 [ ] [ "Test B" { "Hello world." } <article> { "test" "b" } add-article ] unit-test
@@ -11,7 +16,7 @@ IN: help.topics.tests
 
 SYMBOL: foo
 
-[ ] [ { "test" "a" } "Test A" { { $subsection foo } } <article> add-article ] unit-test
+[ ] [ "Test A" { { $subsection foo } } <article> { "test" "a" } add-article ] unit-test
 
 ! Test article location recording
 
@@ -29,6 +34,6 @@ SYMBOL: foo
 ] unit-test
 
 [ { "testfile" 2 } ]
-[ { "test" 1 } articles get at article-loc ] unit-test
+[ { "test" 1 } articles get at loc>> ] unit-test
 
 [ ] [ { "test" 1 } remove-article ] unit-test
diff --git a/extra/help/topics/topics.factor b/basis/help/topics/topics.factor
similarity index 68%
rename from extra/help/topics/topics.factor
rename to basis/help/topics/topics.factor
index afdae38c5a..cdb32b18ee 100755
--- a/extra/help/topics/topics.factor
+++ b/basis/help/topics/topics.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.x
-USING: arrays definitions generic assocs
+USING: accessors arrays definitions generic assocs
 io kernel namespaces prettyprint prettyprint.sections
-sequences words inspector classes strings vocabs ;
+sequences words summary classes strings vocabs ;
 IN: help.topics
 
 TUPLE: link name ;
@@ -16,12 +16,12 @@ M: link >link ;
 M: vocab-spec >link ;
 M: object >link link boa ;
 
-PREDICATE: word-link < link link-name word? ;
+PREDICATE: word-link < link name>> word? ;
 
 M: link summary
     [
         "Link: " %
-        link-name dup word? [ summary ] [ unparse ] if %
+        name>> dup word? [ summary ] [ unparse ] if %
     ] "" make ;
 
 ! Help articles
@@ -34,6 +34,8 @@ SYMBOL: article-xref
 article-xref global [ H{ } assoc-like ] change-at
 
 GENERIC: article-name ( topic -- string )
+GENERIC: article-title ( topic -- string )
+GENERIC: article-content ( topic -- content )
 GENERIC: article-parent ( topic -- parent )
 GENERIC: set-article-parent ( parent topic -- )
 
@@ -42,11 +44,11 @@ TUPLE: article title content loc ;
 : <article> ( title content -- article )
     f \ article boa ;
 
-M: article article-name article-title ;
+M: article article-name title>> ;
+M: article article-title title>> ;
+M: article article-content content>> ;
 
-TUPLE: no-article name ;
-
-: no-article ( name -- * ) \ no-article boa throw ;
+ERROR: no-article name ;
 
 M: no-article summary
     drop "Help article does not exist" ;
@@ -60,11 +62,11 @@ M: object article-content article article-content ;
 M: object article-parent article-xref get at ;
 M: object set-article-parent article-xref get set-at ;
 
-M: link article-name link-name article-name ;
-M: link article-title link-name article-title ;
-M: link article-content link-name article-content ;
-M: link article-parent link-name article-parent ;
-M: link set-article-parent link-name set-article-parent ;
+M: link article-name name>> article-name ;
+M: link article-title name>> article-title ;
+M: link article-content name>> article-content ;
+M: link article-parent name>> article-parent ;
+M: link set-article-parent name>> set-article-parent ;
 
 ! Special case: f help
 M: f article-name drop \ f article-name ;
diff --git a/extra/cocoa/dialogs/authors.txt b/basis/help/tutorial/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/cocoa/dialogs/authors.txt
rename to basis/help/tutorial/authors.txt
diff --git a/extra/help/tutorial/tutorial.factor b/basis/help/tutorial/tutorial.factor
similarity index 100%
rename from extra/help/tutorial/tutorial.factor
rename to basis/help/tutorial/tutorial.factor
diff --git a/extra/cocoa/messages/authors.txt b/basis/hints/authors.txt
similarity index 100%
rename from extra/cocoa/messages/authors.txt
rename to basis/hints/authors.txt
diff --git a/basis/hints/hints-docs.factor b/basis/hints/hints-docs.factor
new file mode 100644
index 0000000000..99c4a2ddfc
--- /dev/null
+++ b/basis/hints/hints-docs.factor
@@ -0,0 +1,28 @@
+IN: hints
+USING: help.markup help.syntax words quotations sequences ;
+
+ARTICLE: "hints" "Compiler specialization hints"
+"Specialization hints help the compiler generate efficient code."
+$nl
+"Specialization hints can help words which call a lot of generic words on the same object - perhaps in a loop - and in most cases, it is anticipated that this object is of a certain class. Using specialization hints, the compiler can be instructed to compile a branch at the beginning of the word; if the branch is taken, the input object has the assumed class, and inlining of generic methods can take place."
+$nl
+"Specialization hints are not declarations; if the inputs do not match what is specified, the word will still run, possibly slower if the compiled code cannot inline methods because of insufficient static type information."
+$nl
+"In some cases, specialization will not help at all, and can make generated code slower from the increase in code size. The compiler is capable of inferring enough static type information to generate efficient code in many cases without explicit help from the programmer. Specializers should be used as a last resort, after profiling shows that a critical loop makes a lot of repeated calls to generic words which dispatch on the same class."
+$nl
+"Type hints are declared with a parsing word:"
+{ $subsection POSTPONE: HINTS: }
+"The specialized version of a word which will be compiled by the compiler can be inspected:"
+{ $subsection specialized-def } ;
+
+HELP: specialized-def
+{ $values { "word" word } { "quot" quotation } }
+{ $description "Outputs the definition of a word after it has been split into specialized branches. This is the definition which will actually be compiled by the compiler." } ;
+
+HELP: HINTS:
+{ $values { "word" word } { "hints..." "a list of sequences of classes" } }
+{ $description "Defines specialization hints for each words. Each sequence of classes in the list will cause a specialized version of the word to be compiled." }
+{ $examples "The " { $link append } " word has a specializer for the very common case where two strings or two arrays are appended:"
+{ $code "HINTS: append { string string } { array array } ;" } } ;
+
+ABOUT: "hints"
diff --git a/basis/hints/hints.factor b/basis/hints/hints.factor
new file mode 100644
index 0000000000..da6ab96959
--- /dev/null
+++ b/basis/hints/hints.factor
@@ -0,0 +1,110 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: parser words definitions kernel sequences assocs arrays
+kernel.private fry combinators accessors vectors strings sbufs
+byte-arrays byte-vectors io.binary io.streams.string splitting
+math generic generic.standard generic.standard.engines ;
+IN: hints
+
+: (make-specializer) ( class picker -- quot )
+    swap "predicate" word-prop append ;
+
+: make-specializer ( classes -- quot )
+    dup length <reversed>
+    [ (picker) 2array ] 2map
+    [ drop object eq? not ] assoc-filter
+    [ [ t ] ] [
+        [ (make-specializer) ] { } assoc>map
+        unclip [ swap [ f ] \ if 3array append [ ] like ] reduce
+    ] if-empty ;
+
+: specializer-cases ( quot word -- default alist )
+    dup [ array? ] all? [ 1array ] unless [
+        [ make-specializer ] keep
+        '[ , declare ] pick append
+    ] { } map>assoc ;
+
+: method-declaration ( method -- quot )
+    [ "method-generic" word-prop dispatch# object <array> ]
+    [ "method-class" word-prop ]
+    bi prefix ;
+
+: specialize-method ( quot method -- quot' )
+    method-declaration '[ , declare ] prepend ;
+
+: specialize-quot ( quot specializer -- quot' )
+    specializer-cases alist>quot ;
+
+: standard-method? ( method -- ? )
+    dup method-body? [
+        "method-generic" word-prop standard-generic?
+    ] [ drop f ] if ;
+
+: specialized-def ( word -- quot )
+    dup def>> swap {
+        { [ dup standard-method? ] [ specialize-method ] }
+        {
+            [ dup "specializer" word-prop ]
+            [ "specializer" word-prop specialize-quot ]
+        }
+        [ drop ]
+    } cond ;
+
+: specialized-length ( specializer -- n )
+    dup [ array? ] all? [ first ] when length ;
+
+: HINTS:
+    scan-word
+    [ redefined ]
+    [ parse-definition "specializer" set-word-prop ] bi ;
+    parsing
+
+! Default specializers
+{ first first2 first3 first4 }
+[ { array } "specializer" set-word-prop ] each
+
+{ peek pop* pop push } [
+    { vector } "specializer" set-word-prop
+] each
+
+\ push-all
+{ { string sbuf } { array vector } { byte-array byte-vector } }
+"specializer" set-word-prop
+
+\ append
+{ { string string } { array array } }
+"specializer" set-word-prop
+
+\ subseq
+{ { fixnum fixnum string } { fixnum fixnum array } }
+"specializer" set-word-prop
+
+\ reverse-here
+{ { string } { array } }
+"specializer" set-word-prop
+
+\ mismatch
+{ string string }
+"specializer" set-word-prop
+
+\ find-last-sep { string sbuf } "specializer" set-word-prop
+
+\ >string { sbuf } "specializer" set-word-prop
+
+\ >array { { string } { vector } } "specializer" set-word-prop
+
+\ >vector { { array } { vector } } "specializer" set-word-prop
+
+\ >sbuf { string } "specializer" set-word-prop
+
+\ split, { string string } "specializer" set-word-prop
+
+\ memq? { array } "specializer" set-word-prop
+
+\ member? { fixnum string } "specializer" set-word-prop
+
+\ assoc-stack { vector } "specializer" set-word-prop
+
+\ >le { { fixnum fixnum } { bignum fixnum } } "specializer" set-word-prop
+
+\ >be { { bignum fixnum } { fixnum fixnum } } "specializer" set-word-prop
diff --git a/extra/hints/summary.txt b/basis/hints/summary.txt
similarity index 100%
rename from extra/hints/summary.txt
rename to basis/hints/summary.txt
diff --git a/extra/hints/tags.txt b/basis/hints/tags.txt
similarity index 100%
rename from extra/hints/tags.txt
rename to basis/hints/tags.txt
diff --git a/extra/html/components/components-tests.factor b/basis/html/components/components-tests.factor
similarity index 89%
rename from extra/html/components/components-tests.factor
rename to basis/html/components/components-tests.factor
index 1f77768115..56c7118ab9 100644
--- a/extra/html/components/components-tests.factor
+++ b/basis/html/components/components-tests.factor
@@ -1,9 +1,9 @@
 IN: html.components.tests
 USING: tools.test kernel io.streams.string
 io.streams.null accessors inspector html.streams
-html.elements html.components namespaces ;
+html.elements html.components html.forms namespaces ;
 
-[ ] [ blank-values ] unit-test
+[ ] [ begin-form ] unit-test
 
 [ ] [ 3 "hi" set-value ] unit-test
 
@@ -17,8 +17,6 @@ TUPLE: color red green blue ;
 
 [ ] [ "jimmy" "red" set-value ] unit-test
 
-[ "123.5" ] [ 123.5 object>string ] unit-test
-
 [ "jimmy" ] [
     [
         "red" label render
@@ -65,7 +63,7 @@ TUPLE: color red green blue ;
     ] with-null-writer
 ] unit-test
 
-[ ] [ blank-values ] unit-test
+[ ] [ begin-form ] unit-test
 
 [ ] [ "new york" "city1" set-value ] unit-test
 
@@ -103,7 +101,7 @@ TUPLE: color red green blue ;
     ] with-null-writer
 ] unit-test
 
-[ ] [ blank-values ] unit-test
+[ ] [ begin-form ] unit-test
 
 [ ] [ t "delivery" set-value ] unit-test
 
@@ -157,8 +155,8 @@ M: link-test link-href drop "http://www.apple.com/foo&bar" ;
 
 [ ] [ "-foo\n-bar" "farkup" set-value ] unit-test
 
-[ "<ul><li>foo</li><li>bar</li></ul>" ] [
-    [ "farkup" farkup render ] with-string-writer
+[ "<ul><li>foo</li>\n<li>bar</li></ul>" ] [
+    [ "farkup" T{ farkup } render ] with-string-writer
 ] unit-test
 
 [ ] [ { 1 2 3 } "object" set-value ] unit-test
@@ -169,12 +167,19 @@ M: link-test link-href drop "http://www.apple.com/foo&bar" ;
     =
 ] unit-test
 
-[ ] [ blank-values ] unit-test
+[ ] [ begin-form ] unit-test
 
 [ ] [
     "factor" [
         "concatenative" "model" set-value
-    ] nest-values
+    ] nest-form
 ] unit-test
 
-[ H{ { "factor" H{ { "model" "concatenative" } } } } ] [ values get ] unit-test
+[
+    H{
+        {
+            "factor"
+            T{ form f V{ } H{ { "model" "concatenative" } } }
+        }
+    }
+] [ values ] unit-test
diff --git a/extra/html/components/components.factor b/basis/html/components/components.factor
similarity index 54%
rename from extra/html/components/components.factor
rename to basis/html/components/components.factor
index c013007a14..0969dd7ef3 100644
--- a/extra/html/components/components.factor
+++ b/basis/html/components/components.factor
@@ -1,79 +1,37 @@
 ! Copyright (C) 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors kernel namespaces io math.parser assocs classes
-classes.tuple words arrays sequences sequences.lib splitting
-mirrors hashtables combinators continuations math strings
-fry locals calendar calendar.format xml.entities validators
-html.elements html.streams xmode.code2html farkup inspector
-lcs.diff2html urls ;
+classes.tuple words arrays sequences splitting mirrors
+hashtables combinators continuations math strings inspector
+fry locals calendar calendar.format xml.entities
+validators urls present
+xmode.code2html lcs.diff2html farkup
+html.elements html.streams html.forms ;
 IN: html.components
 
-SYMBOL: values
-
-: value values get at ;
-
-: set-value values get set-at ;
-
-: blank-values H{ } clone values set ;
-
-: prepare-value ( name object -- value name object )
-    [ [ value ] keep ] dip ; inline
-
-: from-object ( object -- )
-    dup assoc? [ <mirror> ] unless
-    values get swap update ;
-
-: deposit-values ( destination names -- )
-    [ dup value ] H{ } map>assoc update ;
-
-: deposit-slots ( destination names -- )
-    [ <mirror> ] dip deposit-values ;
-
-: with-each-index ( seq quot -- )
-    '[
-        [
-            values [ clone ] change
-            1+ "index" set-value @
-        ] with-scope
-    ] each-index ; inline
-
-: with-each-value ( seq quot -- )
-    '[ "value" set-value @ ] with-each-index ; inline
-
-: with-each-object ( seq quot -- )
-    '[ from-object @ ] with-each-index ; inline
-
-: with-values ( object quot -- )
-    '[ blank-values , from-object @ ] with-scope ; inline
-
-: nest-values ( name quot -- )
-    swap [
-        [
-            H{ } clone [ values set call ] keep
-        ] with-scope
-    ] dip set-value ; inline
-
 GENERIC: render* ( value name render -- )
 
 : render ( name renderer -- )
-    over named-validation-messages get at [
-        [ value>> ] [ message>> ] bi
-        [ -rot render* ] dip
-        render-error
-    ] [
-        prepare-value render*
-    ] if* ;
+    prepare-value
+    [
+        dup validation-error?
+        [ [ message>> ] [ value>> ] bi ]
+        [ f swap ]
+        if
+    ] 2dip
+    render*
+    [ render-error ] when* ;
 
 <PRIVATE
 
 : render-input ( value name type -- )
-    <input =type =name object>string =value input/> ;
+    <input =type =name present =value input/> ;
 
 PRIVATE>
 
 SINGLETON: label
 
-M: label render* 2drop object>string escape-string write ;
+M: label render* 2drop present escape-string write ;
 
 SINGLETON: hidden
 
@@ -82,9 +40,9 @@ M: hidden render* drop "hidden" render-input ;
 : render-field ( value name size type -- )
     <input
         =type
-        [ object>string =size ] when*
+        [ present =size ] when*
         =name
-        object>string =value
+        present =value
     input/> ;
 
 TUPLE: field size ;
@@ -111,11 +69,11 @@ TUPLE: textarea rows cols ;
 
 M: textarea render*
     <textarea
-        [ rows>> [ object>string =rows ] when* ]
-        [ cols>> [ object>string =cols ] when* ] bi
+        [ rows>> [ present =rows ] when* ]
+        [ cols>> [ present =cols ] when* ] bi
         =name
     textarea>
-        object>string escape-string write
+        present escape-string write
     </textarea> ;
 
 ! Choice
@@ -126,7 +84,7 @@ TUPLE: choice size multiple choices ;
 
 : render-option ( text selected? -- )
     <option [ "true" =selected ] when option>
-        object>string escape-string write
+        present escape-string write
     </option> ;
 
 : render-options ( options selected -- )
@@ -135,7 +93,7 @@ TUPLE: choice size multiple choices ;
 M: choice render*
     <select
         swap =name
-        dup size>> [ object>string =size ] when*
+        dup size>> [ present =size ] when*
         dup multiple>> [ "true" =multiple ] when
     select>
         [ choices>> value ] [ multiple>> ] bi
@@ -162,12 +120,18 @@ M: checkbox render*
 GENERIC: link-title ( obj -- string )
 GENERIC: link-href ( obj -- url )
 
+M: string link-title ;
+M: string link-href ;
+
+M: url link-title ;
+M: url link-href ;
+
 SINGLETON: link
 
 M: link render*
     2drop
     <a dup link-href =href a>
-        link-title object>string escape-string write
+        link-title present escape-string write
     </a> ;
 
 ! XMode code component
@@ -180,10 +144,20 @@ M: code render*
     [ string-lines ] [ drop ] [ mode>> value ] tri* htmlize-lines ;
 
 ! Farkup component
-SINGLETON: farkup
+TUPLE: farkup no-follow disable-images ;
+
+: string>boolean ( string -- boolean )
+    {
+        { "true" [ t ] }
+        { "false" [ f ] }
+    } case ;
 
 M: farkup render*
-    2drop string-lines "\n" join convert-farkup write ;
+    [
+        [ no-follow>> [ string>boolean link-no-follow? set ] when* ]
+        [ disable-images>> [ string>boolean disable-images? set ] when* ] bi
+        drop string-lines "\n" join write-farkup
+    ] with-scope ;
 
 ! Inspector component
 SINGLETON: inspector
diff --git a/extra/html/elements/authors.txt b/basis/html/elements/authors.txt
similarity index 100%
rename from extra/html/elements/authors.txt
rename to basis/html/elements/authors.txt
diff --git a/extra/html/elements/elements-tests.factor b/basis/html/elements/elements-tests.factor
similarity index 100%
rename from extra/html/elements/elements-tests.factor
rename to basis/html/elements/elements-tests.factor
diff --git a/extra/html/elements/elements.factor b/basis/html/elements/elements.factor
similarity index 79%
rename from extra/html/elements/elements.factor
rename to basis/html/elements/elements.factor
index 8d92d9f4d7..89f8b01a19 100644
--- a/extra/html/elements/elements.factor
+++ b/basis/html/elements/elements.factor
@@ -5,7 +5,7 @@
 
 USING: io kernel namespaces prettyprint quotations
 sequences strings words xml.entities compiler.units effects
-urls math math.parser combinators calendar calendar.format ;
+urls math math.parser combinators present fry ;
 
 IN: html.elements
 
@@ -65,52 +65,50 @@ SYMBOL: html
     #! dynamically creating words.
     >r >r elements-vocab create r> r> define-declared ;
 
-: <foo> "<" swap ">" 3append ;
-
-: empty-effect T{ effect f 0 0 } ;
+: <foo> ( str -- <str> ) "<" swap ">" 3append ;
 
 : def-for-html-word-<foo> ( name -- )
     #! Return the name and code for the <foo> patterned
     #! word.
-    dup <foo> swap [ <foo> write-html ] curry
-    empty-effect html-word ;
+    dup <foo> swap '[ , <foo> write-html ]
+    (( -- )) html-word ;
 
-: <foo "<" prepend ;
+: <foo ( str -- <str ) "<" prepend ;
 
 : def-for-html-word-<foo ( name -- )
     #! Return the name and code for the <foo patterned
     #! word.
-    <foo dup [ write-html ] curry
-    empty-effect html-word ;
+    <foo dup '[ , write-html ]
+    (( -- )) html-word ;
 
-: foo> ">" append ;
+: foo> ( str -- foo> ) ">" append ;
 
 : def-for-html-word-foo> ( name -- )
     #! Return the name and code for the foo> patterned
     #! word.
-    foo> [ ">" write-html ] empty-effect html-word ;
+    foo> [ ">" write-html ] (( -- )) html-word ;
 
-: </foo> "</" swap ">" 3append ;
+: </foo> ( str -- </str> ) "</" swap ">" 3append ;
 
 : def-for-html-word-</foo> ( name -- )
     #! Return the name and code for the </foo> patterned
     #! word.
-    </foo> dup [ write-html ] curry empty-effect html-word ;
+    </foo> dup '[ , write-html ] (( -- )) html-word ;
 
-: <foo/> "<" swap "/>" 3append ;
+: <foo/> ( str -- <str/> ) "<" swap "/>" 3append ;
 
 : def-for-html-word-<foo/> ( name -- )
     #! Return the name and code for the <foo/> patterned
     #! word.
-    dup <foo/> swap [ <foo/> write-html ] curry
-    empty-effect html-word ;
+    dup <foo/> swap '[ , <foo/> write-html ]
+    (( -- )) html-word ;
 
-: foo/> "/>" append ;
+: foo/> ( str -- str/> ) "/>" append ;
 
 : def-for-html-word-foo/> ( name -- )
     #! Return the name and code for the foo/> patterned
     #! word.
-    foo/> [ "/>" write-html ] empty-effect html-word ;
+    foo/> [ "/>" write-html ] (( -- )) html-word ;
 
 : define-closed-html-word ( name -- )
     #! Given an HTML tag name, define the words for
@@ -127,29 +125,16 @@ SYMBOL: html
     dup def-for-html-word-<foo
     def-for-html-word-foo/> ;
 
-: object>string ( object -- string )
-    #! Should this be generic and in the core?
-    {
-        { [ dup real? ] [ number>string ] }
-        { [ dup timestamp? ] [ timestamp>string ] }
-        { [ dup url? ] [ url>string ] }
-        { [ dup string? ] [ ] }
-        { [ dup word? ] [ word-name ] }
-        { [ dup not ] [ drop "" ] }
-    } cond ;
-
 : write-attr ( value name -- )
     " " write-html
     write-html
     "='" write-html
-    object>string escape-quoted-string write-html
+    present escape-quoted-string write-html
     "'" write-html ;
 
-: attribute-effect T{ effect f { "string" } 0 } ;
-
 : define-attribute-word ( name -- )
     dup "=" prepend swap
-    [ write-attr ] curry attribute-effect html-word ;
+    '[ , write-attr ] (( string -- )) html-word ;
 
 ! Define some closed HTML tags
 [
@@ -157,6 +142,7 @@ SYMBOL: html
     "ol" "li" "form" "a" "p" "html" "head" "body" "title"
     "b" "i" "ul" "table" "tbody" "tr" "td" "th" "pre" "textarea"
     "script" "div" "span" "select" "option" "style" "input"
+    "strong"
 ] [ define-closed-html-word ] each
 
 ! Define some open HTML tags
@@ -175,6 +161,8 @@ SYMBOL: html
     "src" "language" "colspan" "onchange" "rel"
     "width" "selected" "onsubmit" "xmlns" "lang" "xml:lang"
     "media" "title" "multiple" "checked"
+    "summary" "cellspacing" "align" "scope" "abbr"
+    "nofollow" "alt"
 ] [ define-attribute-word ] each
 
 >>
diff --git a/basis/html/forms/forms-tests.factor b/basis/html/forms/forms-tests.factor
new file mode 100644
index 0000000000..d2dc3ed3a3
--- /dev/null
+++ b/basis/html/forms/forms-tests.factor
@@ -0,0 +1,67 @@
+IN: html.forms.tests
+USING: kernel sequences tools.test assocs html.forms validators accessors
+namespaces ;
+
+: with-validation ( quot -- messages )
+    [
+        begin-form
+        call
+    ] with-scope ; inline
+
+[ 14 ] [
+    [
+        "14" [ v-number 13 v-min-value 100 v-max-value ] validate
+    ] with-validation
+] unit-test
+
+[ t ] [
+    [
+        "140" [ v-number 13 v-min-value 100 v-max-value ] validate
+        [ validation-error? ]
+        [ value>> "140" = ]
+        bi and
+    ] with-validation
+] unit-test
+
+TUPLE: person name age ;
+
+person {
+    { "name" [ ] }
+    { "age" [ v-number 13 v-min-value 100 v-max-value ] }
+} define-validators
+
+[ t t ] [
+    [
+        { { "age" "" } }
+        { { "age" [ v-required ] } }
+        validate-values
+        validation-failed?
+        "age" value
+        [ validation-error? ]
+        [ message>> "required" = ]
+        bi and
+    ] with-validation
+] unit-test
+
+[ H{ { "a" 123 } } f ] [
+    [
+        H{
+            { "a" "123" }
+            { "b" "c" }
+            { "c" "d" }
+        }
+        H{
+            { "a" [ v-integer ] }
+        } validate-values
+        values
+        validation-failed?
+    ] with-validation
+] unit-test
+
+[ t "foo" ] [
+    [
+        "foo" validation-error
+        validation-failed?
+        form get errors>> first
+    ] with-validation
+] unit-test
diff --git a/basis/html/forms/forms.factor b/basis/html/forms/forms.factor
new file mode 100644
index 0000000000..911e545f87
--- /dev/null
+++ b/basis/html/forms/forms.factor
@@ -0,0 +1,106 @@
+! Copyright (C) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors strings namespaces assocs hashtables
+mirrors math fry sequences words continuations ;
+IN: html.forms
+
+TUPLE: form errors values validation-failed ;
+
+: <form> ( -- form )
+    form new
+        V{ } clone >>errors
+        H{ } clone >>values ;
+
+M: form clone
+    call-next-method
+        [ clone ] change-errors
+        [ clone ] change-values ;
+
+: check-value-name ( name -- name )
+    dup string? [ "Value name not a string" throw ] unless ;
+
+: values ( -- assoc )
+    form get values>> ;
+
+: value ( name -- value )
+    check-value-name values at ;
+
+: set-value ( value name -- )
+    check-value-name values set-at ;
+
+: begin-form ( -- ) <form> form set ;
+
+: prepare-value ( name object -- value name object )
+    [ [ value ] keep ] dip ; inline
+
+: from-object ( object -- )
+    [ values ] [ make-mirror ] bi* update ;
+
+: to-object ( destination names -- )
+    [ make-mirror ] [ values extract-keys ] bi* update ;
+
+: with-each-value ( name quot -- )
+    [ value ] dip '[
+        [
+            form [ clone ] change
+            1+ "index" set-value
+            "value" set-value
+            @
+        ] with-scope
+    ] each-index ; inline
+
+: with-each-object ( name quot -- )
+    [ value ] dip '[
+        [
+            begin-form
+            1+ "index" set-value
+            from-object
+            @
+        ] with-scope
+    ] each-index ; inline
+
+SYMBOL: nested-forms
+
+: with-form ( name quot -- )
+    '[
+        ,
+        [ nested-forms [ swap prefix ] change ]
+        [ value form set ]
+        bi
+        @
+    ] with-scope ; inline
+
+: nest-form ( name quot -- )
+    swap [
+        [
+            <form> form set
+            call
+            form get
+        ] with-scope
+    ] dip set-value ; inline
+
+TUPLE: validation-error value message ;
+
+C: <validation-error> validation-error
+
+: validation-error ( message -- )
+    form get
+    t >>validation-failed
+    errors>> push ;
+
+: validation-failed? ( -- ? )
+    form get validation-failed>> ;
+
+: define-validators ( class validators -- )
+    >hashtable "validators" set-word-prop ;
+
+: validate ( value quot -- result )
+    [ <validation-error> ] recover ; inline
+
+: validate-value ( name value quot -- )
+    validate
+    dup validation-error? [ form get t >>validation-failed drop ] when
+    swap set-value ;
+
+: validate-values ( assoc validators -- assoc' )
+    swap '[ dup , at _ validate-value ] assoc-each ;
diff --git a/extra/html/streams/authors.txt b/basis/html/streams/authors.txt
similarity index 100%
rename from extra/html/streams/authors.txt
rename to basis/html/streams/authors.txt
diff --git a/extra/html/streams/streams-tests.factor b/basis/html/streams/streams-tests.factor
similarity index 81%
rename from extra/html/streams/streams-tests.factor
rename to basis/html/streams/streams-tests.factor
index 14f1621346..b5707c158f 100644
--- a/extra/html/streams/streams-tests.factor
+++ b/basis/html/streams/streams-tests.factor
@@ -1,6 +1,6 @@
-USING: html.streams html.streams.private
-io io.streams.string io.styles kernel
-namespaces tools.test xml.writer sbufs sequences inspector ;
+USING: html.streams html.streams.private accessors io
+io.streams.string io.styles kernel namespaces tools.test
+xml.writer sbufs sequences inspector colors ;
 IN: html.streams.tests
 
 : make-html-string
@@ -31,7 +31,7 @@ IN: html.streams.tests
 TUPLE: funky town ;
 
 M: funky browser-link-href
-    "http://www.funky-town.com/" swap funky-town append ;
+    "http://www.funky-town.com/" swap town>> append ;
 
 [ "<a href='http://www.funky-town.com/austin'>&lt;</a>" ] [
     [
@@ -52,7 +52,7 @@ M: funky browser-link-href
 [
     [
         "car"
-        H{ { foreground { 1 0 1 1 } } }
+        H{ { foreground T{ rgba f 1 0 1 1 } } }
         format
     ] make-html-string
 ] unit-test
@@ -60,7 +60,7 @@ M: funky browser-link-href
 [ "<div style='background-color: #ff00ff; white-space: pre; font-family: monospace; '>cdr</div>" ]
 [
     [
-        H{ { page-color { 1 0 1 1 } } }
+        H{ { page-color T{ rgba f 1 0 1 1 } } }
         [ "cdr" write ] with-nesting
     ] make-html-string
 ] unit-test
diff --git a/extra/html/streams/streams.factor b/basis/html/streams/streams.factor
similarity index 89%
rename from extra/html/streams/streams.factor
rename to basis/html/streams/streams.factor
index e3f45e4c25..6a15b76bd3 100755
--- a/extra/html/streams/streams.factor
+++ b/basis/html/streams/streams.factor
@@ -1,9 +1,11 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: generic assocs help http io io.styles io.files continuations
-io.streams.string kernel math math.order math.parser namespaces
-quotations assocs sequences strings words html.elements
-xml.entities sbufs continuations destructors accessors ;
+
+USING: combinators generic assocs help http io io.styles io.files
+       continuations io.streams.string kernel math math.order math.parser
+       namespaces quotations assocs sequences strings words html.elements
+       xml.entities sbufs continuations destructors accessors arrays ;
+
 IN: html.streams
 
 GENERIC: browser-link-href ( presented -- href )
@@ -47,9 +49,9 @@ TUPLE: html-sub-stream < html-stream style parent ;
         ] [ call ] if*
     ] [ call ] if* ; inline
 
-: hex-color, ( triplet -- )
-    3 head-slice
-    [ 255 * >fixnum >hex 2 CHAR: 0 pad-left % ] each ;
+: hex-color, ( color -- )
+    [ red>> ] [ green>> ] [ blue>> ] tri
+    [ 255 * >fixnum >hex 2 CHAR: 0 pad-left % ] tri@ ;
 
 : fg-css, ( color -- )
     "color: #" % hex-color, "; " % ;
@@ -86,11 +88,11 @@ TUPLE: html-sub-stream < html-stream style parent ;
     ] make-css ;
 
 : span-tag ( style quot -- )
-    over span-css-style dup empty? [
-        drop call
+    over span-css-style [
+        call
     ] [
         <span =style span> call </span>
-    ] if ; inline
+    ] if-empty ; inline
 
 : format-html-span ( string style stream -- )
     stream>> [
@@ -119,11 +121,11 @@ M: html-span-stream dispose
     ] make-css ;
 
 : div-tag ( style quot -- )
-    swap div-css-style dup empty? [
-        drop call
+    swap div-css-style [
+        call
     ] [
         <div =style div> call </div>
-    ] if ; inline
+    ] if-empty ; inline
 
 : format-html-div ( string style stream -- )
     stream>> [
@@ -135,7 +137,7 @@ TUPLE: html-block-stream < html-sub-stream ;
 M: html-block-stream dispose ( quot style stream -- )
     end-sub-stream a-div format-html-div ;
 
-: border-spacing-css,
+: border-spacing-css, ( pair -- )
     "padding: " % first2 max 2 /i # "px; " % ;
 
 : table-style ( style -- str )
diff --git a/extra/html/streams/summary.txt b/basis/html/streams/summary.txt
similarity index 100%
rename from extra/html/streams/summary.txt
rename to basis/html/streams/summary.txt
diff --git a/extra/html/streams/tags.txt b/basis/html/streams/tags.txt
similarity index 100%
rename from extra/html/streams/tags.txt
rename to basis/html/streams/tags.txt
diff --git a/extra/html/templates/chloe/chloe-tests.factor b/basis/html/templates/chloe/chloe-tests.factor
similarity index 75%
rename from extra/html/templates/chloe/chloe-tests.factor
rename to basis/html/templates/chloe/chloe-tests.factor
index d4c02061b2..9eb4a5709c 100644
--- a/extra/html/templates/chloe/chloe-tests.factor
+++ b/basis/html/templates/chloe/chloe-tests.factor
@@ -1,32 +1,17 @@
 USING: html.templates html.templates.chloe
 tools.test io.streams.string kernel sequences ascii boxes
-namespaces xml html.components
-splitting unicode.categories furnace ;
+namespaces xml html.components html.forms
+splitting unicode.categories furnace accessors ;
 IN: html.templates.chloe.tests
 
-[ f ] [ f parse-query-attr ] unit-test
-
-[ f ] [ "" parse-query-attr ] unit-test
-
-[ H{ { "a" "b" } } ] [
-    blank-values
-    "b" "a" set-value
-    "a" parse-query-attr
-] unit-test
-
-[ H{ { "a" "b" } { "c" "d" } } ] [
-    blank-values
-    "b" "a" set-value
-    "d" "c" set-value
-    "a,c" parse-query-attr
-] unit-test
+reset-templates
 
 : run-template
     with-string-writer [ "\r\n\t" member? not ] filter
     "?>" split1 nip ; inline
 
 : test-template ( name -- template )
-    "resource:extra/html/templates/chloe/test/"
+    "resource:basis/html/templates/chloe/test/"
     prepend <chloe> ;
 
 [ "Hello world" ] [
@@ -69,7 +54,7 @@ IN: html.templates.chloe.tests
     ] run-template
 ] unit-test
 
-[ ] [ blank-values ] unit-test
+[ ] [ begin-form ] unit-test
 
 [ ] [ "A label" "label" set-value ] unit-test
 
@@ -148,3 +133,35 @@ TUPLE: person first-name last-name ;
         "test9" test-template call-template
     ] run-template
 ] unit-test
+
+[ ] [ H{ { "a" H{ { "b" "c" } } } } values set ] unit-test
+
+[ "<form method='post' action='foo'><input type='hidden' name='__n' value='a'/></form>" ] [
+    [
+        "test10" test-template call-template
+    ] run-template
+] unit-test
+
+[ ] [ begin-form ] unit-test
+
+[ ] [
+    <form> H{ { "first-name" "RBaxter" } { "last-name" "Unknown" } } >>values "person" set-value
+] unit-test
+
+[ "<table><tr><td>RBaxter</td><td>Unknown</td></tr></table>" ] [
+    [
+        "test11" test-template call-template
+    ] run-template [ blank? not ] filter
+] unit-test
+
+[ ] [
+    begin-form
+    { "a" "b" } "choices" set-value
+    "true" "b" set-value
+] unit-test
+
+[ "<input type='checkbox' name='a'>a</input><input type='checkbox' name='b' checked='true'>b</input>" ] [
+    [
+        "test12" test-template call-template
+    ] run-template
+] unit-test
diff --git a/basis/html/templates/chloe/chloe.factor b/basis/html/templates/chloe/chloe.factor
new file mode 100644
index 0000000000..45e59c3b6d
--- /dev/null
+++ b/basis/html/templates/chloe/chloe.factor
@@ -0,0 +1,108 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel sequences combinators kernel fry
+namespaces classes.tuple assocs splitting words arrays memoize
+io io.files io.encodings.utf8 io.streams.string unicode.case
+mirrors math urls present multiline quotations xml xml.data
+html.forms
+html.elements
+html.components
+html.templates
+html.templates.chloe.compiler
+html.templates.chloe.components
+html.templates.chloe.syntax ;
+IN: html.templates.chloe
+
+! Chloe is Ed's favorite web designer
+TUPLE: chloe path ;
+
+C: <chloe> chloe
+
+CHLOE: chloe compile-children ;
+
+CHLOE: title compile-children>string [ set-title ] [code] ;
+
+CHLOE: write-title
+    drop
+    "head" tag-stack get member?
+    "title" tag-stack get member? not and
+    [ <title> write-title </title> ] [ write-title ] ? [code] ;
+
+CHLOE: style
+    dup "include" optional-attr [
+        utf8 file-contents [ add-style ] [code-with]
+    ] [
+        compile-children>string [ add-style ] [code]
+    ] ?if ;
+
+CHLOE: write-style
+    drop [ <style> write-style </style> ] [code] ;
+
+CHLOE: even
+    [ "index" value even? swap when ] process-children ;
+
+CHLOE: odd
+    [ "index" value odd? swap when ] process-children ;
+
+: (bind-tag) ( tag quot -- )
+    [
+        [ "name" required-attr compile-attr ] keep
+    ] dip process-children ; inline
+
+CHLOE: each [ with-each-value ] (bind-tag) ;
+
+CHLOE: bind-each [ with-each-object ] (bind-tag) ;
+
+CHLOE: bind [ with-form ] (bind-tag) ;
+
+CHLOE: comment drop ;
+
+CHLOE: call-next-template
+    drop reset-buffer \ call-next-template , ;
+
+: attr>word ( value -- word/f )
+    ":" split1 swap lookup ;
+
+: if>quot ( tag -- quot )
+    [
+        [ "code" optional-attr [ attr>word [ , ] [ f , ] if* ] [ t , ] if* ]
+        [ "value" optional-attr [ , \ value , ] [ t , ] if* ]
+        bi
+        \ and ,
+    ] [ ] make ;
+
+CHLOE: if dup if>quot [ swap when ] append process-children ;
+
+CHLOE-SINGLETON: label
+CHLOE-SINGLETON: link
+CHLOE-SINGLETON: inspector
+CHLOE-SINGLETON: comparison
+CHLOE-SINGLETON: html
+CHLOE-SINGLETON: hidden
+
+CHLOE-TUPLE: farkup
+CHLOE-TUPLE: field
+CHLOE-TUPLE: textarea
+CHLOE-TUPLE: password
+CHLOE-TUPLE: choice
+CHLOE-TUPLE: checkbox
+CHLOE-TUPLE: code
+
+: read-template ( chloe -- xml )
+    path>> ".xml" append utf8 <file-reader> read-xml ;
+
+MEMO: template-quot ( chloe -- quot )
+    read-template compile-template ;
+
+MEMO: nested-template-quot ( chloe -- quot )
+    read-template compile-nested-template ;
+
+: reset-templates ( -- )
+    { template-quot nested-template-quot } [ reset-memoized ] each ;
+
+M: chloe call-template*
+    nested-template? get
+    [ nested-template-quot ] [ template-quot ] if
+    assert-depth ;
+
+INSTANCE: chloe template
diff --git a/basis/html/templates/chloe/compiler/compiler.factor b/basis/html/templates/chloe/compiler/compiler.factor
new file mode 100644
index 0000000000..044d2edb90
--- /dev/null
+++ b/basis/html/templates/chloe/compiler/compiler.factor
@@ -0,0 +1,131 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs namespaces kernel sequences accessors combinators
+strings splitting io io.streams.string present xml.writer
+xml.data xml.entities html.forms html.templates.chloe.syntax ;
+IN: html.templates.chloe.compiler
+
+: chloe-attrs-only ( assoc -- assoc' )
+    [ drop url>> chloe-ns = ] assoc-filter ;
+
+: non-chloe-attrs-only ( assoc -- assoc' )
+    [ drop url>> chloe-ns = not ] assoc-filter ;
+
+: chloe-tag? ( tag -- ? )
+    dup xml? [ body>> ] when
+    {
+        { [ dup tag? not ] [ f ] }
+        { [ dup url>> chloe-ns = not ] [ f ] }
+        [ t ]
+    } cond nip ;
+
+SYMBOL: string-buffer
+
+SYMBOL: tag-stack
+
+DEFER: compile-element
+
+: compile-children ( tag -- )
+    [ compile-element ] each ;
+
+: [write] ( string -- ) string-buffer get push-all ;
+
+: reset-buffer ( -- )
+    string-buffer get [
+        [ >string , \ write , ] [ delete-all ] bi
+    ] unless-empty ;
+
+: [code] ( quot -- )
+    reset-buffer % ;
+
+: [code-with] ( obj quot -- )
+    reset-buffer [ , ] [ % ] bi* ;
+
+: expand-attr ( value -- )
+    [ value present write ] [code-with] ;
+
+: compile-attr ( value -- )
+    reset-buffer "@" ?head [ , [ value present ] % ] [ , ] if ;
+
+: compile-attrs ( assoc -- )
+    [
+        " " [write]
+        swap name>string [write]
+        "=\"" [write]
+        "@" ?head [ expand-attr ] [ escape-quoted-string [write] ] if
+        "\"" [write]
+    ] assoc-each ;
+
+: compile-start-tag ( tag -- )
+    "<" [write]
+    [ name>string [write] ] [ compile-attrs ] bi
+    ">" [write] ;
+
+: compile-end-tag ( tag -- )
+    "</" [write]
+    name>string [write]
+    ">" [write] ;
+
+: compile-tag ( tag -- )
+    {
+        [ main>> tag-stack get push ]
+        [ compile-start-tag ]
+        [ compile-children ]
+        [ compile-end-tag ]
+        [ drop tag-stack get pop* ]
+    } cleave ;
+
+: compile-chloe-tag ( tag -- )
+    ! "Unknown chloe tag: " prepend throw
+    dup main>> dup tags get at
+    [ curry assert-depth ] [ 2drop ] ?if ;
+
+: compile-element ( element -- )
+    {
+        { [ dup chloe-tag? ] [ compile-chloe-tag ] }
+        { [ dup [ tag? ] [ xml? ] bi or ] [ compile-tag ] }
+        { [ dup string? ] [ escape-string [write] ] }
+        { [ dup comment? ] [ drop ] }
+        [ [ write-item ] [code-with] ]
+    } cond ;
+
+: with-compiler ( quot -- quot' )
+    [
+        SBUF" " string-buffer set
+        V{ } clone tag-stack set
+        call
+        reset-buffer
+    ] [ ] make ; inline
+
+: compile-nested-template ( xml -- quot )
+    [ compile-element ] with-compiler ;
+
+: compile-chunk ( seq -- )
+    [ compile-element ] each ;
+
+: compile-quot ( quot -- )
+    reset-buffer
+    [
+        SBUF" " string-buffer set
+        call
+        reset-buffer
+    ] [ ] make , ; inline
+
+: process-children ( tag quot -- )
+    [ [ compile-children ] compile-quot ] [ % ] bi* ; inline
+
+: compile-children>string ( tag -- )
+     [ with-string-writer ] process-children ;
+
+: compile-with-scope ( quot -- )
+    compile-quot [ with-scope ] [code] ; inline
+
+: compile-template ( xml -- quot )
+    [
+        {
+            [ prolog>> [ write-prolog ] [code-with] ]
+            [ before>> compile-chunk ]
+            [ compile-element ]
+            [ after>> compile-chunk ]
+        } cleave
+    ] with-compiler ;
diff --git a/basis/html/templates/chloe/components/components.factor b/basis/html/templates/chloe/components/components.factor
new file mode 100644
index 0000000000..e8703a1235
--- /dev/null
+++ b/basis/html/templates/chloe/components/components.factor
@@ -0,0 +1,35 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs sequences kernel parser fry quotations
+classes.tuple
+html.components
+html.templates.chloe.compiler
+html.templates.chloe.syntax ;
+IN: html.templates.chloe.components
+
+: singleton-component-tag ( tag class -- )
+    [ "name" required-attr compile-attr ]
+    [ literalize [ render ] [code-with] ]
+    bi* ;
+
+: CHLOE-SINGLETON:
+    scan-word
+    [ name>> ] [ '[ , singleton-component-tag ] ] bi
+    define-chloe-tag ;
+    parsing
+
+: compile-component-attrs ( tag class -- )
+    [ attrs>> [ drop main>> "name" = not ] assoc-filter ] dip
+    [ all-slots swap '[ name>> , at compile-attr ] each ]
+    [ [ boa ] [code-with] ]
+    bi ;
+
+: tuple-component-tag ( tag class -- )
+    [ drop "name" required-attr compile-attr ] [ compile-component-attrs ] 2bi
+    [ render ] [code] ;
+
+: CHLOE-TUPLE:
+    scan-word
+    [ name>> ] [ '[ , tuple-component-tag ] ] bi
+    define-chloe-tag ;
+    parsing
diff --git a/extra/html/templates/chloe/syntax/syntax.factor b/basis/html/templates/chloe/syntax/syntax.factor
similarity index 50%
rename from extra/html/templates/chloe/syntax/syntax.factor
rename to basis/html/templates/chloe/syntax/syntax.factor
index 7eeb756a39..90c171917b 100644
--- a/extra/html/templates/chloe/syntax/syntax.factor
+++ b/basis/html/templates/chloe/syntax/syntax.factor
@@ -2,9 +2,9 @@
 ! See http://factorcode.org/license.txt for BSD license.
 IN: html.templates.chloe.syntax
 USING: accessors kernel sequences combinators kernel namespaces
-classes.tuple assocs splitting words arrays memoize parser
+classes.tuple assocs splitting words arrays memoize parser lexer
 io io.files io.encodings.utf8 io.streams.string
-unicode.case tuple-syntax mirrors fry math urls
+unicode.case mirrors fry math urls
 multiline xml xml.data xml.writer xml.utilities
 html.elements
 html.components
@@ -21,9 +21,9 @@ tags global [ H{ } clone or ] change-at
 
 : chloe-ns "http://factorcode.org/chloe/1.0" ; inline
 
-MEMO: chloe-name ( string -- name )
+: chloe-name ( string -- name )
     name new
-        swap >>tag
+        swap >>main
         chloe-ns >>url ;
 
 : required-attr ( tag name -- value )
@@ -32,30 +32,3 @@ MEMO: chloe-name ( string -- name )
 
 : optional-attr ( tag name -- value )
     chloe-name swap at ;
-
-: singleton-component-tag ( tag class -- )
-    [ "name" required-attr ] dip render ;
-
-: CHLOE-SINGLETON:
-    scan-word
-    [ word-name ] [ '[ , singleton-component-tag ] ] bi
-    define-chloe-tag ;
-    parsing
-
-: attrs>slots ( tag tuple -- )
-    [ attrs>> ] [ <mirror> ] bi*
-    '[
-        swap tag>> dup "name" =
-        [ 2drop ] [ , set-at ] if
-    ] assoc-each ;
-
-: tuple-component-tag ( tag class -- )
-    [ drop "name" required-attr ]
-    [ new [ attrs>slots ] keep ]
-    2bi render ;
-
-: CHLOE-TUPLE:
-    scan-word
-    [ word-name ] [ '[ , tuple-component-tag ] ] bi
-    define-chloe-tag ;
-    parsing
diff --git a/extra/html/templates/chloe/test/test1.xml b/basis/html/templates/chloe/test/test1.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test1.xml
rename to basis/html/templates/chloe/test/test1.xml
diff --git a/basis/html/templates/chloe/test/test10.xml b/basis/html/templates/chloe/test/test10.xml
new file mode 100644
index 0000000000..33fe2008a5
--- /dev/null
+++ b/basis/html/templates/chloe/test/test10.xml
@@ -0,0 +1,3 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0"><t:bind t:name="a"><t:form t:action="foo"/></t:bind></t:chloe>
diff --git a/basis/html/templates/chloe/test/test11.xml b/basis/html/templates/chloe/test/test11.xml
new file mode 100644
index 0000000000..f74256bd84
--- /dev/null
+++ b/basis/html/templates/chloe/test/test11.xml
@@ -0,0 +1,14 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<table>
+		<t:bind t:name="person">
+			<tr>
+				<td><t:label t:name="first-name"/></td>
+				<td><t:label t:name="last-name"/></td>
+			</tr>
+		</t:bind>
+	</table>
+
+</t:chloe>
diff --git a/basis/html/templates/chloe/test/test12.xml b/basis/html/templates/chloe/test/test12.xml
new file mode 100644
index 0000000000..b26778c96e
--- /dev/null
+++ b/basis/html/templates/chloe/test/test12.xml
@@ -0,0 +1,3 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0"><t:each t:name="choices"><t:checkbox t:name="@value" t:label="@value" /></t:each></t:chloe>
diff --git a/extra/html/templates/chloe/test/test2.xml b/basis/html/templates/chloe/test/test2.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test2.xml
rename to basis/html/templates/chloe/test/test2.xml
diff --git a/extra/html/templates/chloe/test/test3-aux.xml b/basis/html/templates/chloe/test/test3-aux.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test3-aux.xml
rename to basis/html/templates/chloe/test/test3-aux.xml
diff --git a/extra/html/templates/chloe/test/test3.xml b/basis/html/templates/chloe/test/test3.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test3.xml
rename to basis/html/templates/chloe/test/test3.xml
diff --git a/extra/html/templates/chloe/test/test4.xml b/basis/html/templates/chloe/test/test4.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test4.xml
rename to basis/html/templates/chloe/test/test4.xml
diff --git a/extra/html/templates/chloe/test/test5.xml b/basis/html/templates/chloe/test/test5.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test5.xml
rename to basis/html/templates/chloe/test/test5.xml
diff --git a/extra/html/templates/chloe/test/test6.xml b/basis/html/templates/chloe/test/test6.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test6.xml
rename to basis/html/templates/chloe/test/test6.xml
diff --git a/extra/html/templates/chloe/test/test7.xml b/basis/html/templates/chloe/test/test7.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test7.xml
rename to basis/html/templates/chloe/test/test7.xml
diff --git a/extra/html/templates/chloe/test/test8.xml b/basis/html/templates/chloe/test/test8.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test8.xml
rename to basis/html/templates/chloe/test/test8.xml
diff --git a/extra/html/templates/chloe/test/test9.xml b/basis/html/templates/chloe/test/test9.xml
similarity index 100%
rename from extra/html/templates/chloe/test/test9.xml
rename to basis/html/templates/chloe/test/test9.xml
diff --git a/extra/html/templates/fhtml/authors.txt b/basis/html/templates/fhtml/authors.txt
similarity index 100%
rename from extra/html/templates/fhtml/authors.txt
rename to basis/html/templates/fhtml/authors.txt
diff --git a/extra/html/templates/fhtml/fhtml-tests.factor b/basis/html/templates/fhtml/fhtml-tests.factor
similarity index 91%
rename from extra/html/templates/fhtml/fhtml-tests.factor
rename to basis/html/templates/fhtml/fhtml-tests.factor
index 43ea28fa55..b863087a92 100755
--- a/extra/html/templates/fhtml/fhtml-tests.factor
+++ b/basis/html/templates/fhtml/fhtml-tests.factor
@@ -4,7 +4,7 @@ tools.test sequences parser ;
 IN: html.templates.fhtml.tests
 
 : test-template ( path -- ? )
-    "resource:extra/html/templates/fhtml/test/"
+    "resource:basis/html/templates/fhtml/test/"
     prepend
     [
         ".fhtml" append <fhtml> [ call-template ] with-string-writer
diff --git a/extra/html/templates/fhtml/fhtml.factor b/basis/html/templates/fhtml/fhtml.factor
similarity index 92%
rename from extra/html/templates/fhtml/fhtml.factor
rename to basis/html/templates/fhtml/fhtml.factor
index 74e5c37ef1..e435fdce5f 100755
--- a/extra/html/templates/fhtml/fhtml.factor
+++ b/basis/html/templates/fhtml/fhtml.factor
@@ -4,7 +4,7 @@
 USING: continuations sequences kernel namespaces debugger
 combinators math quotations generic strings splitting
 accessors assocs fry
-parser io io.files io.streams.string io.encodings.utf8
+parser lexer io io.files io.streams.string io.encodings.utf8
 html.elements
 html.templates ;
 IN: html.templates.fhtml
@@ -55,8 +55,8 @@ DEFER: <% delimiter
 
 : parse-template-lines ( lines -- quot )
     <template-lexer> [
-        V{ } clone lexer get parse-%> f (parse-until)
-    ] with-parser ;
+        V{ } clone lexer get parse-%> f (parse-until) >quotation
+    ] with-lexer ;
 
 : parse-template ( string -- quot )
     [
diff --git a/extra/html/templates/fhtml/test/bug.fhtml b/basis/html/templates/fhtml/test/bug.fhtml
similarity index 100%
rename from extra/html/templates/fhtml/test/bug.fhtml
rename to basis/html/templates/fhtml/test/bug.fhtml
diff --git a/extra/html/templates/fhtml/test/bug.html b/basis/html/templates/fhtml/test/bug.html
similarity index 100%
rename from extra/html/templates/fhtml/test/bug.html
rename to basis/html/templates/fhtml/test/bug.html
diff --git a/extra/html/templates/fhtml/test/example.fhtml b/basis/html/templates/fhtml/test/example.fhtml
similarity index 100%
rename from extra/html/templates/fhtml/test/example.fhtml
rename to basis/html/templates/fhtml/test/example.fhtml
diff --git a/extra/html/templates/fhtml/test/example.html b/basis/html/templates/fhtml/test/example.html
similarity index 100%
rename from extra/html/templates/fhtml/test/example.html
rename to basis/html/templates/fhtml/test/example.html
diff --git a/extra/html/templates/fhtml/test/stack.fhtml b/basis/html/templates/fhtml/test/stack.fhtml
similarity index 100%
rename from extra/html/templates/fhtml/test/stack.fhtml
rename to basis/html/templates/fhtml/test/stack.fhtml
diff --git a/extra/html/templates/fhtml/test/stack.html b/basis/html/templates/fhtml/test/stack.html
similarity index 100%
rename from extra/html/templates/fhtml/test/stack.html
rename to basis/html/templates/fhtml/test/stack.html
diff --git a/extra/html/templates/templates.factor b/basis/html/templates/templates.factor
similarity index 100%
rename from extra/html/templates/templates.factor
rename to basis/html/templates/templates.factor
diff --git a/extra/cocoa/pasteboard/authors.txt b/basis/http/authors.txt
similarity index 100%
rename from extra/cocoa/pasteboard/authors.txt
rename to basis/http/authors.txt
diff --git a/extra/cocoa/plists/authors.txt b/basis/http/client/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/cocoa/plists/authors.txt
rename to basis/http/client/authors.txt
diff --git a/extra/http/client/client-tests.factor b/basis/http/client/client-tests.factor
similarity index 51%
rename from extra/http/client/client-tests.factor
rename to basis/http/client/client-tests.factor
index daf4ad88d3..1219ae0b97 100755
--- a/extra/http/client/client-tests.factor
+++ b/basis/http/client/client-tests.factor
@@ -1,5 +1,5 @@
 USING: http.client http.client.private http tools.test
-tuple-syntax namespaces urls ;
+namespaces urls ;
 [ "localhost" f ] [ "localhost" parse-host ] unit-test
 [ "localhost" 8888 ] [ "localhost:8888" parse-host ] unit-test
 
@@ -9,12 +9,12 @@ tuple-syntax namespaces urls ;
 [ "www.arc.com" ] [ "http://www.arc.com////" download-name ] unit-test
 
 [
-    TUPLE{ request
-        url: TUPLE{ url protocol: "http" host: "www.apple.com" port: 80 path: "/index.html" }
-        method: "GET"
-        version: "1.1"
-        cookies: V{ }
-        header: H{ { "connection" "close" } { "user-agent" "Factor http.client vocabulary" } }
+    T{ request
+        { url T{ url { protocol "http" } { host "www.apple.com" } { port 80 } { path "/index.html" } } }
+        { method "GET" }
+        { version "1.1" }
+        { cookies V{ } }
+        { header H{ { "connection" "close" } { "user-agent" "Factor http.client" } } }
     }
 ] [
     "http://www.apple.com/index.html"
@@ -22,12 +22,12 @@ tuple-syntax namespaces urls ;
 ] unit-test
 
 [
-    TUPLE{ request
-        url: TUPLE{ url protocol: "https" host: "www.amazon.com" port: 443 path: "/index.html" }
-        method: "GET"
-        version: "1.1"
-        cookies: V{ }
-        header: H{ { "connection" "close" } { "user-agent" "Factor http.client vocabulary" } }
+    T{ request
+        { url T{ url { protocol "https" } { host "www.amazon.com" } { port 443 } { path "/index.html" } } }
+        { method "GET" }
+        { version "1.1" }
+        { cookies V{ } }
+        { header H{ { "connection" "close" } { "user-agent" "Factor http.client" } } }
     }
 ] [
     "https://www.amazon.com/index.html"
diff --git a/basis/http/client/client.factor b/basis/http/client/client.factor
new file mode 100755
index 0000000000..8dc1924a12
--- /dev/null
+++ b/basis/http/client/client.factor
@@ -0,0 +1,185 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs kernel math math.parser namespaces
+sequences io io.sockets io.streams.string io.files io.timeouts
+strings splitting calendar continuations accessors vectors
+math.order hashtables byte-arrays prettyprint
+io.encodings
+io.encodings.string
+io.encodings.ascii
+io.encodings.8-bit
+io.encodings.binary
+io.streams.duplex
+fry debugger summary ascii urls present
+http http.parsers ;
+IN: http.client
+
+: write-request-line ( request -- request )
+    dup
+    [ method>> write bl ]
+    [ url>> relative-url present write bl ]
+    [ "HTTP/" write version>> write crlf ]
+    tri ;
+
+: url-host ( url -- string )
+    [ host>> ] [ port>> ] bi dup "http" protocol-port =
+    [ drop ] [ ":" swap number>string 3append ] if ;
+
+: write-request-header ( request -- request )
+    dup header>> >hashtable
+    over url>> host>> [ over url>> url-host "host" pick set-at ] when
+    over post-data>> [
+        [ raw>> length "content-length" pick set-at ]
+        [ content-type>> "content-type" pick set-at ]
+        bi
+    ] when*
+    over cookies>> f like [ unparse-cookie "cookie" pick set-at ] when*
+    write-header ;
+
+GENERIC: >post-data ( object -- post-data )
+
+M: post-data >post-data ;
+
+M: string >post-data "application/octet-stream" <post-data> ;
+
+M: byte-array >post-data "application/octet-stream" <post-data> ;
+
+M: assoc >post-data assoc>query "application/x-www-form-urlencoded" <post-data> ;
+
+M: f >post-data ;
+
+: unparse-post-data ( request -- request )
+    [ >post-data ] change-post-data ;
+
+: write-post-data ( request -- request )
+    dup method>> "POST" = [ dup post-data>> raw>> write ] when ; 
+
+: write-request ( request -- )
+    unparse-post-data
+    write-request-line
+    write-request-header
+    write-post-data
+    flush
+    drop ;
+
+: read-response-line ( response -- response )
+    read-crlf parse-response-line first3
+    [ >>version ] [ >>code ] [ >>message ] tri* ;
+
+: read-response-header ( response -- response )
+    read-header >>header
+    dup "set-cookie" header parse-set-cookie >>cookies
+    dup "content-type" header [
+        parse-content-type
+        [ >>content-type ]
+        [ >>content-charset ] bi*
+    ] when* ;
+
+: read-response ( -- response )
+    <response>
+    read-response-line
+    read-response-header ;
+
+: max-redirects 10 ;
+
+ERROR: too-many-redirects ;
+
+M: too-many-redirects summary
+    drop
+    [ "Redirection limit of " % max-redirects # " exceeded" % ] "" make ;
+
+DEFER: (http-request)
+
+<PRIVATE
+
+SYMBOL: redirects
+
+: redirect-url ( request url -- request )
+    '[ , >url derive-url ensure-port ] change-url ;
+
+: do-redirect ( response data -- response data )
+    over code>> 300 399 between? [
+        drop
+        redirects inc
+        redirects get max-redirects < [
+            request get
+            swap "location" header redirect-url
+            "GET" >>method (http-request)
+        ] [
+            too-many-redirects
+        ] if
+    ] when ;
+
+PRIVATE>
+
+: read-chunk-size ( -- n )
+    read-crlf ";" split1 drop [ blank? ] trim-right
+    hex> [ "Bad chunk size" throw ] unless* ;
+
+: read-chunks ( -- )
+    read-chunk-size dup zero?
+    [ drop ] [ read % read-crlf B{ } assert= read-chunks ] if ;
+
+: read-response-body ( response -- response data )
+    dup "transfer-encoding" header "chunked" = [
+        binary decode-input
+        [ read-chunks ] B{ } make
+        over content-charset>> decode
+    ] [
+        dup content-charset>> decode-input
+        input-stream get contents
+    ] if ;
+
+: (http-request) ( request -- response data )
+    dup request [
+        dup url>> url-addr ascii [
+            1 minutes timeouts
+            write-request
+            read-response
+            read-response-body
+        ] with-client
+        do-redirect
+    ] with-variable ;
+
+: success? ( code -- ? ) 200 = ;
+
+ERROR: download-failed response body ;
+
+M: download-failed error.
+    "HTTP download failed:" print nl
+    [ response>> . nl ] [ body>> write ] bi ;
+
+: check-response ( response data -- response data )
+    over code>> success? [ download-failed ] unless ;
+
+: http-request ( request -- response data )
+    (http-request) check-response ;
+
+: <get-request> ( url -- request )
+    <request>
+        "GET" >>method
+        swap >url ensure-port >>url ;
+
+: http-get ( url -- response data )
+    <get-request> http-request ;
+
+: download-name ( url -- name )
+    present file-name "?" split1 drop "/" ?tail drop ;
+
+: download-to ( url file -- )
+    #! Downloads the contents of a URL to a file.
+    swap http-get
+    [ content-charset>> ] [ '[ , write ] ] bi*
+    with-file-writer ;
+
+: download ( url -- )
+    dup download-name download-to ;
+
+: <post-request> ( post-data url -- request )
+    <request>
+        "POST" >>method
+        swap >url ensure-port >>url
+        swap >>post-data ;
+
+: http-post ( post-data url -- response data )
+    <post-request> http-request ;
diff --git a/extra/http/client/summary.txt b/basis/http/client/summary.txt
similarity index 100%
rename from extra/http/client/summary.txt
rename to basis/http/client/summary.txt
diff --git a/extra/http/client/tags.txt b/basis/http/client/tags.txt
similarity index 100%
rename from extra/http/client/tags.txt
rename to basis/http/client/tags.txt
diff --git a/basis/http/http-tests.factor b/basis/http/http-tests.factor
new file mode 100755
index 0000000000..3294940d89
--- /dev/null
+++ b/basis/http/http-tests.factor
@@ -0,0 +1,352 @@
+USING: http http.server http.client tools.test multiline
+io.streams.string io.encodings.utf8 io.encodings.8-bit
+io.encodings.binary io.encodings.string kernel arrays splitting
+sequences assocs io.sockets db db.sqlite continuations urls
+hashtables accessors ;
+IN: http.tests
+
+[ "text/plain" latin1 ] [ "text/plain" parse-content-type ] unit-test
+
+[ "text/html" utf8 ] [ "text/html;  charset=UTF-8" parse-content-type ] unit-test
+
+[ "application/octet-stream" binary ] [ "application/octet-stream" parse-content-type ] unit-test
+
+: lf>crlf "\n" split "\r\n" join ;
+
+STRING: read-request-test-1
+POST /bar HTTP/1.1
+Some-Header: 1
+Some-Header: 2
+Content-Length: 4
+Content-type: application/octet-stream
+
+blah
+;
+
+[
+    T{ request
+        { url T{ url { path "/bar" } } }
+        { method "POST" }
+        { version "1.1" }
+        { header H{ { "some-header" "1; 2" } { "content-length" "4" } { "content-type" "application/octet-stream" } } }
+        { post-data T{ post-data { content "blah" } { raw "blah" } { content-type "application/octet-stream" } } }
+        { cookies V{ } }
+    }
+] [
+    read-request-test-1 lf>crlf [
+        read-request
+    ] with-string-reader
+] unit-test
+
+STRING: read-request-test-1'
+POST /bar HTTP/1.1
+content-length: 4
+content-type: application/octet-stream
+some-header: 1; 2
+
+blah
+;
+
+read-request-test-1' 1array [
+    read-request-test-1 lf>crlf
+    [ read-request ] with-string-reader
+    [ write-request ] with-string-writer
+    ! normalize crlf
+    string-lines "\n" join
+] unit-test
+
+STRING: read-request-test-2
+HEAD  /bar   HTTP/1.1
+Host: www.sex.com
+
+;
+
+[
+    T{ request
+        { url T{ url { host "www.sex.com" } { path "/bar" } } }
+        { method "HEAD" }
+        { version "1.1" }
+        { header H{ { "host" "www.sex.com" } } }
+        { cookies V{ } }
+    }
+] [
+    read-request-test-2 lf>crlf [
+        read-request
+    ] with-string-reader
+] unit-test
+
+STRING: read-request-test-3
+GET nested HTTP/1.0
+
+;
+
+[ read-request-test-3 lf>crlf [ read-request ] with-string-reader ]
+[ "Bad request: URL" = ]
+must-fail-with
+
+STRING: read-request-test-4
+GET /blah HTTP/1.0
+Host: "www.amazon.com"
+;
+
+[ "www.amazon.com" ]
+[
+    read-request-test-4 lf>crlf [ read-request ] with-string-reader
+    "host" header
+] unit-test
+
+STRING: read-response-test-1
+HTTP/1.1 404 not found
+Content-Type: text/html; charset=UTF-8
+
+blah
+;
+
+[
+    T{ response
+        { version "1.1" }
+        { code 404 }
+        { message "not found" }
+        { header H{ { "content-type" "text/html; charset=UTF-8" } } }
+        { cookies { } }
+        { content-type "text/html" }
+        { content-charset utf8 }
+    }
+] [
+    read-response-test-1 lf>crlf
+    [ read-response ] with-string-reader
+] unit-test
+
+
+STRING: read-response-test-1'
+HTTP/1.1 404 not found
+content-type: text/html; charset=UTF-8
+
+
+;
+
+read-response-test-1' 1array [
+    read-response-test-1 lf>crlf
+    [ read-response ] with-string-reader
+    [ write-response ] with-string-writer
+    ! normalize crlf
+    string-lines "\n" join
+] unit-test
+
+[ t ] [
+    "rmid=732423sdfs73242; path=/; domain=.example.net; expires=Fri, 31-Dec-2010 23:59:59 GMT"
+    dup parse-set-cookie first unparse-set-cookie =
+] unit-test
+
+[ t ] [
+    "a="
+    dup parse-set-cookie first unparse-set-cookie =
+] unit-test
+
+STRING: read-response-test-2
+HTTP/1.1 200 Content follows
+Set-Cookie: oo="bar; a=b"; httponly=yes; sid=123456
+
+
+;
+
+[ 2 ] [
+    read-response-test-2 lf>crlf
+    [ read-response ] with-string-reader
+    cookies>> length
+] unit-test
+
+STRING: read-response-test-3
+HTTP/1.1 200 Content follows
+Set-Cookie: oo="bar; a=b"; comment="your mom"; httponly=yes
+
+
+;
+
+[ 1 ] [
+    read-response-test-3 lf>crlf
+    [ read-response ] with-string-reader
+    cookies>> length
+] unit-test
+
+! Live-fire exercise
+USING: http.server http.server.static furnace.sessions furnace.alloy
+furnace.actions furnace.auth furnace.auth.login furnace.db http.client
+io.servers.connection io.files io io.encodings.ascii
+accessors namespaces threads
+http.server.responses http.server.redirection furnace.redirection
+http.server.dispatchers db.tuples ;
+
+: add-quit-action
+    <action>
+        [ stop-server "Goodbye" "text/html" <content> ] >>display
+    "quit" add-responder ;
+
+: test-db "test.db" temp-file sqlite-db ;
+
+[ test-db drop delete-file ] ignore-errors
+
+test-db [
+    init-furnace-tables
+] with-db
+
+: test-httpd ( -- )
+    #! Return as soon as server is running.
+    <http-server>
+        1237 >>insecure
+        f >>secure
+    start-server* ;
+
+[ ] [
+    [
+        <dispatcher>
+            add-quit-action
+            <dispatcher>
+                "resource:basis/http/test" <static> >>default
+            "nested" add-responder
+            <action>
+                [ URL" redirect-loop" <temporary-redirect> ] >>display
+            "redirect-loop" add-responder
+        main-responder set
+
+        test-httpd
+    ] with-scope
+] unit-test
+
+[ t ] [
+    "resource:basis/http/test/foo.html" ascii file-contents
+    "http://localhost:1237/nested/foo.html" http-get nip =
+] unit-test
+
+[ "http://localhost:1237/redirect-loop" http-get nip ]
+[ too-many-redirects? ] must-fail-with
+
+[ "Goodbye" ] [
+    "http://localhost:1237/quit" http-get nip
+] unit-test
+
+! HTTP client redirect bug
+[ ] [
+    [
+        <dispatcher>
+            add-quit-action
+            <action> [ "quit" <temporary-redirect> ] >>display
+            "redirect" add-responder
+        main-responder set
+
+        test-httpd
+    ] with-scope
+] unit-test
+
+[ "Goodbye" ] [
+    "http://localhost:1237/redirect" http-get nip
+] unit-test
+
+
+[ ] [
+    [ "http://localhost:1237/quit" http-get 2drop ] ignore-errors
+] unit-test
+
+! Dispatcher bugs
+[ ] [
+    [
+        <dispatcher>
+            <action> <protected>
+            "Test" <login-realm>
+            <sessions>
+            "" add-responder
+            add-quit-action
+            <dispatcher>
+                <action> "a" add-main-responder
+            "d" add-responder
+        test-db <db-persistence>
+        main-responder set
+
+        test-httpd
+    ] with-scope
+] unit-test
+
+: 404? [ download-failed? ] [ response>> code>> 404 = ] bi and ;
+
+! This should give a 404 not an infinite redirect loop
+[ "http://localhost:1237/d/blah" http-get nip ] [ 404? ] must-fail-with
+
+! This should give a 404 not an infinite redirect loop
+[ "http://localhost:1237/blah/" http-get nip ] [ 404? ] must-fail-with
+
+[ "Goodbye" ] [ "http://localhost:1237/quit" http-get nip ] unit-test
+
+[ ] [
+    [
+        <dispatcher>
+            <action> [ [ "Hi" write ] "text/plain" <content> ] >>display
+            "Test" <login-realm>
+            <sessions>
+            "" add-responder
+            add-quit-action
+        test-db <db-persistence>
+        main-responder set
+
+        test-httpd
+    ] with-scope
+] unit-test
+
+[ "Hi" ] [ "http://localhost:1237/" http-get nip ] unit-test
+
+[ "Goodbye" ] [ "http://localhost:1237/quit" http-get nip ] unit-test
+
+USING: html.components html.elements html.forms
+xml xml.utilities validators
+furnace furnace.conversations ;
+
+SYMBOL: a
+
+[ ] [
+    [
+        <dispatcher>
+            <action>
+                [ a get-global "a" set-value ] >>init
+                [ [ <html> "a" <field> render </html> ] "text/html" <content> ] >>display
+                [ { { "a" [ v-integer ] } } validate-params ] >>validate
+                [ "a" value a set-global URL" " <redirect> ] >>submit
+            <conversations>
+            <sessions>
+            >>default
+            add-quit-action
+        test-db <db-persistence>
+        main-responder set
+
+        test-httpd
+    ] with-scope
+] unit-test
+
+3 a set-global
+
+: test-a string>xml "input" tag-named "value" swap at ;
+
+[ "3" ] [
+    "http://localhost:1237/" http-get
+    swap dup cookies>> "cookies" set session-id-key get-cookie
+    value>> "session-id" set test-a
+] unit-test
+
+[ "4" ] [
+    H{ { "a" "4" } { "__u" "http://localhost:1237/" } } "session-id" get session-id-key associate assoc-union
+    "http://localhost:1237/" <post-request> "cookies" get >>cookies http-request nip test-a
+] unit-test
+
+[ 4 ] [ a get-global ] unit-test
+
+! Test flash scope
+[ "xyz" ] [
+    H{ { "a" "xyz" } { "__u" "http://localhost:1237/" } } "session-id" get session-id-key associate assoc-union
+    "http://localhost:1237/" <post-request> "cookies" get >>cookies http-request nip test-a
+] unit-test
+
+[ 4 ] [ a get-global ] unit-test
+
+[ "Goodbye" ] [ "http://localhost:1237/quit" http-get nip ] unit-test
+
+! Test cloning
+[ f ] [ <404> dup clone "b" "a" set-header drop "a" header ] unit-test
+[ f ] [ <404> dup clone "b" "a" <cookie> put-cookie drop "a" get-cookie ] unit-test
diff --git a/basis/http/http.factor b/basis/http/http.factor
new file mode 100755
index 0000000000..03cca05ff3
--- /dev/null
+++ b/basis/http/http.factor
@@ -0,0 +1,230 @@
+! Copyright (C) 2003, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel combinators math namespaces
+assocs sequences splitting sorting sets debugger
+strings vectors hashtables quotations arrays byte-arrays
+math.parser calendar calendar.format present
+
+io io.encodings io.encodings.iana io.encodings.binary
+io.encodings.8-bit
+
+unicode.case unicode.categories qualified
+
+urls
+
+http.parsers ;
+
+EXCLUDE: fry => , ;
+
+IN: http
+
+: crlf ( -- ) "\r\n" write ;
+
+: read-crlf ( -- bytes )
+    "\r" read-until
+    [ CHAR: \r assert= read1 CHAR: \n assert= ] when* ;
+
+: (read-header) ( -- alist )
+    [ read-crlf dup f like ] [ parse-header-line ] [ drop ] produce ;
+
+: collect-headers ( assoc -- assoc' )
+    H{ } clone [ '[ , push-at ] assoc-each ] keep ;
+
+: process-header ( alist -- assoc )
+    f swap [ [ swap or dup ] dip swap ] assoc-map nip
+    collect-headers [ "; " join ] assoc-map
+    >hashtable ;
+
+: read-header ( -- assoc )
+    (read-header) process-header ;
+
+: header-value>string ( value -- string )
+    {
+        { [ dup timestamp? ] [ timestamp>http-string ] }
+        { [ dup array? ] [ [ header-value>string ] map "; " join ] }
+        [ present ]
+    } cond ;
+
+: check-header-string ( str -- str )
+    #! http://en.wikipedia.org/wiki/HTTP_Header_Injection
+    dup "\r\n\"" intersect empty?
+    [ "Header injection attack" throw ] unless ;
+
+: write-header ( assoc -- )
+    >alist sort-keys [
+        [ check-header-string write ": " write ]
+        [ header-value>string check-header-string write crlf ] bi*
+    ] assoc-each crlf ;
+
+TUPLE: cookie name value version comment path domain expires max-age http-only secure ;
+
+: <cookie> ( value name -- cookie )
+    cookie new
+        swap >>name
+        swap >>value ;
+
+: parse-set-cookie ( string -- seq )
+    [
+        f swap
+        (parse-set-cookie)
+        [
+            swap {
+                { "version" [ >>version ] }
+                { "comment" [ >>comment ] }
+                { "expires" [ cookie-string>timestamp >>expires ] }
+                { "max-age" [ string>number seconds >>max-age ] }
+                { "domain" [ >>domain ] }
+                { "path" [ >>path ] }
+                { "httponly" [ drop t >>http-only ] }
+                { "secure" [ drop t >>secure ] }
+                [ <cookie> dup , nip ]
+            } case
+        ] assoc-each
+        drop
+    ] { } make ;
+
+: parse-cookie ( string -- seq )
+    [
+        f swap
+        (parse-cookie)
+        [
+            swap {
+                { "$version" [ >>version ] }
+                { "$domain" [ >>domain ] }
+                { "$path" [ >>path ] }
+                [ <cookie> dup , nip ]
+            } case
+        ] assoc-each
+        drop
+    ] { } make ;
+
+: check-cookie-string ( string -- string' )
+    dup "=;'\"\r\n" intersect empty?
+    [ "Bad cookie name or value" throw ] unless ;
+
+: unparse-cookie-value ( key value -- )
+    {
+        { f [ drop ] }
+        { t [ check-cookie-string , ] }
+        [
+            {
+                { [ dup timestamp? ] [ timestamp>cookie-string ] }
+                { [ dup duration? ] [ duration>seconds number>string ] }
+                { [ dup real? ] [ number>string ] }
+                [ ]
+            } cond
+            [ check-cookie-string ] bi@ "=" swap 3append ,
+        ]
+    } case ;
+
+: check-cookie-value ( string -- string )
+    [ "Cookie value must not be f" throw ] unless* ;
+
+: (unparse-cookie) ( cookie -- strings )
+    [
+        dup name>> check-cookie-string >lower
+        over value>> check-cookie-value unparse-cookie-value
+        "$path" over path>> unparse-cookie-value
+        "$domain" over domain>> unparse-cookie-value
+        drop
+    ] { } make ;
+
+: unparse-cookie ( cookies -- string )
+    [ (unparse-cookie) ] map concat "; " join ;
+
+: unparse-set-cookie ( cookie -- string )
+    [
+        dup name>> check-cookie-string >lower
+        over value>> check-cookie-value unparse-cookie-value
+        "path" over path>> unparse-cookie-value
+        "domain" over domain>> unparse-cookie-value
+        "expires" over expires>> unparse-cookie-value
+        "max-age" over max-age>> unparse-cookie-value
+        "httponly" over http-only>> unparse-cookie-value
+        "secure" over secure>> unparse-cookie-value
+        drop
+    ] { } make "; " join ;
+
+TUPLE: request
+method
+url
+version
+header
+post-data
+cookies ;
+
+: set-header ( request/response value key -- request/response )
+    pick header>> set-at ;
+
+: <request> ( -- request )
+    request new
+        "1.1" >>version
+        <url>
+            H{ } clone >>query
+        >>url
+        H{ } clone >>header
+        V{ } clone >>cookies
+        "close" "connection" set-header
+        "Factor http.client" "user-agent" set-header ;
+
+: header ( request/response key -- value )
+    swap header>> at ;
+
+TUPLE: response
+version
+code
+message
+header
+cookies
+content-type
+content-charset
+body ;
+
+: <response> ( -- response )
+    response new
+        "1.1" >>version
+        H{ } clone >>header
+        "close" "connection" set-header
+        now timestamp>http-string "date" set-header
+        "Factor http.server" "server" set-header
+        latin1 >>content-charset
+        V{ } clone >>cookies ;
+
+M: response clone
+    call-next-method
+        [ clone ] change-header
+        [ clone ] change-cookies ;
+
+: get-cookie ( request/response name -- cookie/f )
+    [ cookies>> ] dip '[ , _ name>> = ] find nip ;
+
+: delete-cookie ( request/response name -- )
+    over cookies>> [ get-cookie ] dip delete ;
+
+: put-cookie ( request/response cookie -- request/response )
+    [ name>> dupd get-cookie [ dupd delete-cookie ] when* ] keep
+    over cookies>> push ;
+
+TUPLE: raw-response
+version
+code
+message
+body ;
+
+: <raw-response> ( -- response )
+    raw-response new
+        "1.1" >>version ;
+
+TUPLE: post-data raw content content-type ;
+
+: <post-data> ( raw content-type -- post-data )
+    post-data new
+        swap >>content-type
+        swap >>raw ;
+
+: parse-content-type-attributes ( string -- attributes )
+    " " split harvest [ "=" split1 [ >lower ] dip ] { } map>assoc ;
+
+: parse-content-type ( content-type -- type encoding )
+    ";" split1 parse-content-type-attributes "charset" swap at
+    name>encoding over "text/" head? latin1 binary ? or ;
diff --git a/basis/http/parsers/parsers.factor b/basis/http/parsers/parsers.factor
new file mode 100644
index 0000000000..2a31373951
--- /dev/null
+++ b/basis/http/parsers/parsers.factor
@@ -0,0 +1,168 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: combinators.short-circuit math math.order math.parser kernel
+sequences sequences.deep peg peg.parsers assocs arrays
+hashtables strings unicode.case namespaces ascii ;
+IN: http.parsers
+
+: except ( quot -- parser )
+    [ not ] compose satisfy ; inline
+
+: except-these ( quots -- parser )
+    [ 1|| ] curry except ; inline
+
+: ctl? ( ch -- ? )
+    { [ 0 31 between? ] [ 127 = ] } 1|| ;
+
+: tspecial? ( ch -- ? )
+    "()<>@,;:\\\"/[]?={} \t" member? ;
+
+: 'token' ( -- parser )
+    { [ ctl? ] [ tspecial? ] } except-these repeat1 ;
+
+: case-insensitive ( parser -- parser' )
+    [ flatten >string >lower ] action ;
+
+: case-sensitive ( parser -- parser' )
+    [ flatten >string ] action ;
+
+: 'space' ( -- parser )
+    [ " \t" member? ] satisfy repeat0 hide ;
+
+: one-of ( strings -- parser )
+    [ token ] map choice ;
+
+: 'http-method' ( -- parser )
+    { "OPTIONS" "GET" "HEAD" "POST" "PUT" "DELETE" "TRACE" "CONNECT" } one-of ;
+
+: 'url' ( -- parser )
+    [ " \t\r\n" member? ] except repeat1 case-sensitive ;
+
+: 'http-version' ( -- parser )
+    [
+        "HTTP" token hide ,
+        'space' ,
+        "/" token hide ,
+        'space' ,
+        "1" token ,
+        "." token ,
+        { "0" "1" } one-of ,
+    ] seq* [ concat >string ] action ;
+
+PEG: parse-request-line ( string -- triple )
+    #! Triple is { method url version }
+    [ 
+        'space' ,
+        'http-method' ,
+        'space' ,
+        'url' ,
+        'space' ,
+        'http-version' ,
+        'space' ,
+    ] seq* just ;
+
+: 'text' ( -- parser )
+    [ ctl? ] except ;
+
+: 'response-code' ( -- parser )
+    [ digit? ] satisfy 3 exactly-n [ string>number ] action ;
+
+: 'response-message' ( -- parser )
+    'text' repeat0 case-sensitive ;
+
+PEG: parse-response-line ( string -- triple )
+    #! Triple is { version code message }
+    [
+        'space' ,
+        'http-version' ,
+        'space' ,
+        'response-code' ,
+        'space' ,
+        'response-message' ,
+    ] seq* just ;
+
+: 'crlf' ( -- parser )
+    "\r\n" token ;
+
+: 'lws' ( -- parser )
+    [ " \t" member? ] satisfy repeat1 ;
+
+: 'qdtext' ( -- parser )
+    { [ CHAR: " = ] [ ctl? ] } except-these ;
+
+: 'quoted-char' ( -- parser )
+    "\\" token hide any-char 2seq ;
+
+: 'quoted-string' ( -- parser )
+    'quoted-char' 'qdtext' 2choice repeat0 "\"" "\"" surrounded-by ;
+
+: 'ctext' ( -- parser )
+    { [ ctl? ] [ "()" member? ] } except-these ;
+
+: 'comment' ( -- parser )
+    'ctext' 'comment' 2choice repeat0 "(" ")" surrounded-by ;
+
+: 'field-name' ( -- parser )
+    'token' case-insensitive ;
+
+: 'field-content' ( -- parser )
+    'quoted-string' case-sensitive
+    'text' repeat0 case-sensitive
+    2choice ;
+
+PEG: parse-header-line ( string -- pair )
+    #! Pair is either { name value } or { f value }. If f, its a
+    #! continuation of the previous header line.
+    [
+        'field-name' ,
+        'space' ,
+        ":" token hide ,
+        'space' ,
+        'field-content' ,
+    ] seq*
+    [
+        'lws' [ drop f ] action ,
+        'field-content' ,
+    ] seq*
+    2choice ;
+
+: 'word' ( -- parser )
+    'token' 'quoted-string' 2choice ;
+
+: 'value' ( -- parser )
+    'quoted-string'
+    [ ";" member? ] except repeat0
+    2choice case-sensitive ;
+
+: 'attr' ( -- parser )
+    'token' case-insensitive ;
+
+: 'av-pair' ( -- parser )
+    [
+        'space' ,
+        'attr' ,
+        'space' ,
+            [ "=" token , 'space' , 'value' , ] seq* [ peek ] action
+            epsilon [ drop f ] action
+        2choice ,
+        'space' ,
+    ] seq* ;
+
+: 'av-pairs' ( -- parser )
+    'av-pair' ";" token list-of optional ;
+
+PEG: (parse-set-cookie) ( string -- alist ) 'av-pairs' just ;
+
+: 'cookie-value' ( -- parser )
+    [
+        'space' ,
+        'attr' ,
+        'space' ,
+        "=" token hide ,
+        'space' ,
+        'value' ,
+        'space' ,
+    ] seq* ;
+
+PEG: (parse-cookie) ( string -- alist )
+    'cookie-value' [ ";," member? ] satisfy list-of optional just ;
diff --git a/extra/cocoa/runtime/authors.txt b/basis/http/server/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/cocoa/runtime/authors.txt
rename to basis/http/server/authors.txt
diff --git a/extra/http/server/cgi/cgi.factor b/basis/http/server/cgi/cgi.factor
similarity index 73%
rename from extra/http/server/cgi/cgi.factor
rename to basis/http/server/cgi/cgi.factor
index cf8a35f141..354ebd8f70 100755
--- a/extra/http/server/cgi/cgi.factor
+++ b/basis/http/server/cgi/cgi.factor
@@ -5,8 +5,6 @@ combinators arrays io.launcher io http.server.static http.server
 http accessors sequences strings math.parser fry urls ;
 IN: http.server.cgi
 
-: post? request get method>> "POST" = ;
-
 : cgi-variables ( script-path -- assoc )
     #! This needs some work.
     [
@@ -16,10 +14,10 @@ IN: http.server.cgi
 
         [ "PATH_TRANSLATED" set ] [ "SCRIPT_FILENAME" set ] bi
 
-        request get url>> path>> "SCRIPT_NAME" set
+        url get path>> "SCRIPT_NAME" set
 
-        request get url>> host>> "SERVER_NAME" set
-        request get url>> port>> number>string "SERVER_PORT" set
+        url get host>> "SERVER_NAME" set
+        url get port>> number>string "SERVER_PORT" set
         "" "PATH_INFO" set
         "" "REMOTE_HOST" set
         "" "REMOTE_ADDR" set
@@ -28,15 +26,17 @@ IN: http.server.cgi
         "" "REMOTE_IDENT" set
 
         request get method>> "REQUEST_METHOD" set
-        request get url>> query>> assoc>query "QUERY_STRING" set
+        url get query>> assoc>query "QUERY_STRING" set
         request get "cookie" header "HTTP_COOKIE" set 
 
         request get "user-agent" header "HTTP_USER_AGENT" set
         request get "accept" header "HTTP_ACCEPT" set
 
-        post? [
-            request get post-data-type>> "CONTENT_TYPE" set
-            request get post-data>> length number>string "CONTENT_LENGTH" set
+        post-request? [
+            request get post-data>> raw>>
+            [ "CONTENT_TYPE" set ]
+            [ length number>string "CONTENT_LENGTH" set ]
+            bi
         ] when
     ] H{ } make-assoc ;
 
@@ -51,7 +51,7 @@ IN: http.server.cgi
     "CGI output follows" >>message
     swap '[
         , output-stream get swap <cgi-process> <process-stream> [
-            post? [ request get post-data>> write flush ] when
+            post-request? [ request get post-data>> raw>> write flush ] when
             input-stream get swap (stream-copy)
         ] with-stream
     ] >>body ;
diff --git a/extra/http/server/dispatchers/dispatchers-tests.factor b/basis/http/server/dispatchers/dispatchers-tests.factor
similarity index 100%
rename from extra/http/server/dispatchers/dispatchers-tests.factor
rename to basis/http/server/dispatchers/dispatchers-tests.factor
diff --git a/extra/http/server/dispatchers/dispatchers.factor b/basis/http/server/dispatchers/dispatchers.factor
similarity index 83%
rename from extra/http/server/dispatchers/dispatchers.factor
rename to basis/http/server/dispatchers/dispatchers.factor
index 36eb447fc3..405d96d1f5 100644
--- a/extra/http/server/dispatchers/dispatchers.factor
+++ b/basis/http/server/dispatchers/dispatchers.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel namespaces sequences assocs accessors
-http http.server http.server.responses ;
+USING: kernel namespaces sequences assocs accessors splitting
+unicode.case urls http http.server http.server.responses ;
 IN: http.server.dispatchers
 
 TUPLE: dispatcher default responders ;
@@ -31,8 +31,11 @@ TUPLE: vhost-dispatcher default responders ;
 : <vhost-dispatcher> ( -- dispatcher )
     vhost-dispatcher new-dispatcher ;
 
+: canonical-host ( host -- host' )
+    >lower "www." ?head drop "." ?tail drop ;
+
 : find-vhost ( dispatcher -- responder )
-    request get url>> host>> over responders>> at*
+    url get host>> canonical-host over responders>> at*
     [ nip ] [ drop default>> ] if ;
 
 M: vhost-dispatcher call-responder* ( path dispatcher -- response )
diff --git a/extra/http/server/filters/filters.factor b/basis/http/server/filters/filters.factor
similarity index 100%
rename from extra/http/server/filters/filters.factor
rename to basis/http/server/filters/filters.factor
diff --git a/extra/http/server/redirection/redirection-tests.factor b/basis/http/server/redirection/redirection-tests.factor
similarity index 71%
rename from extra/http/server/redirection/redirection-tests.factor
rename to basis/http/server/redirection/redirection-tests.factor
index 0b88231855..c7a1370397 100644
--- a/extra/http/server/redirection/redirection-tests.factor
+++ b/basis/http/server/redirection/redirection-tests.factor
@@ -1,6 +1,6 @@
 IN: http.server.redirection.tests
 USING: http http.server.redirection urls accessors
-namespaces tools.test ;
+namespaces tools.test present kernel ;
 
 \ relative-to-request must-infer
 
@@ -11,38 +11,39 @@ namespaces tools.test ;
             "www.apple.com" >>host
             "/xxx/bar" >>path
             { { "a" "b" } } >>query
+        dup url set
         >>url
     request set
 
     [ "http://www.apple.com:80/xxx/bar" ] [ 
-        <url> relative-to-request url>string 
+        <url> relative-to-request present 
     ] unit-test
 
     [ "http://www.apple.com:80/xxx/baz" ] [
-        <url> "baz" >>path relative-to-request url>string
+        <url> "baz" >>path relative-to-request present
     ] unit-test
     
     [ "http://www.apple.com:80/xxx/baz?c=d" ] [
-        <url> "baz" >>path { { "c" "d" } } >>query relative-to-request url>string
+        <url> "baz" >>path { { "c" "d" } } >>query relative-to-request present
     ] unit-test
     
     [ "http://www.apple.com:80/xxx/bar?c=d" ] [
-        <url> { { "c" "d" } } >>query relative-to-request url>string
+        <url> { { "c" "d" } } >>query relative-to-request present
     ] unit-test
     
     [ "http://www.apple.com:80/flip" ] [
-        <url> "/flip" >>path relative-to-request url>string
+        <url> "/flip" >>path relative-to-request present
     ] unit-test
     
     [ "http://www.apple.com:80/flip?c=d" ] [
-        <url> "/flip" >>path { { "c" "d" } } >>query relative-to-request url>string
+        <url> "/flip" >>path { { "c" "d" } } >>query relative-to-request present
     ] unit-test
     
     [ "http://www.jedit.org:80/" ] [
-        "http://www.jedit.org" >url relative-to-request url>string
+        "http://www.jedit.org" >url relative-to-request present
     ] unit-test
     
     [ "http://www.jedit.org:80/?a=b" ] [
-        "http://www.jedit.org" >url { { "a" "b" } } >>query relative-to-request url>string
+        "http://www.jedit.org" >url { { "a" "b" } } >>query relative-to-request present
     ] unit-test
 ] with-scope
diff --git a/extra/http/server/redirection/redirection.factor b/basis/http/server/redirection/redirection.factor
similarity index 78%
rename from extra/http/server/redirection/redirection.factor
rename to basis/http/server/redirection/redirection.factor
index 3cd01345aa..314c09e33d 100644
--- a/extra/http/server/redirection/redirection.factor
+++ b/basis/http/server/redirection/redirection.factor
@@ -1,11 +1,15 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel accessors combinators namespaces
+USING: kernel accessors combinators namespaces strings
 logging urls http http.server http.server.responses ;
 IN: http.server.redirection
 
-: relative-to-request ( url -- url' )
-    request get url>>
+GENERIC: relative-to-request ( url -- url' )
+
+M: string relative-to-request ;
+
+M: url relative-to-request
+    url get
         clone
         f >>query
     swap derive-url ensure-port ;
diff --git a/extra/http/server/responses/responses.factor b/basis/http/server/responses/responses.factor
similarity index 92%
rename from extra/http/server/responses/responses.factor
rename to basis/http/server/responses/responses.factor
index 277ca392b7..4056f0c7f0 100644
--- a/extra/http/server/responses/responses.factor
+++ b/basis/http/server/responses/responses.factor
@@ -1,13 +1,14 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: html.elements math.parser http accessors kernel
-io io.streams.string ;
+io io.streams.string io.encodings.utf8 ;
 IN: http.server.responses
 
 : <content> ( body content-type -- response )
     <response>
         200 >>code
         "Document follows" >>message
+        utf8 >>content-charset
         swap >>content-type
         swap >>body ;
     
diff --git a/basis/http/server/server-tests.factor b/basis/http/server/server-tests.factor
new file mode 100644
index 0000000000..c29912b8c7
--- /dev/null
+++ b/basis/http/server/server-tests.factor
@@ -0,0 +1,4 @@
+USING: http http.server math sequences continuations tools.test ;
+IN: http.server.tests
+
+[ t ] [ [ \ + first ] [ <500> ] recover response? ] unit-test
diff --git a/basis/http/server/server.factor b/basis/http/server/server.factor
new file mode 100755
index 0000000000..436d626578
--- /dev/null
+++ b/basis/http/server/server.factor
@@ -0,0 +1,255 @@
+! Copyright (C) 2003, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors sequences arrays namespaces splitting
+vocabs.loader destructors assocs debugger continuations
+combinators tools.vocabs tools.time math math.parser present
+io vectors
+io.sockets
+io.sockets.secure
+io.encodings
+io.encodings.iana
+io.encodings.utf8
+io.encodings.ascii
+io.encodings.binary
+io.streams.limited
+io.servers.connection
+io.timeouts
+fry logging logging.insomniac calendar urls
+http
+http.parsers
+http.server.responses
+html.templates
+html.elements
+html.streams ;
+IN: http.server
+
+: check-absolute ( url -- url )
+    dup path>> "/" head? [ "Bad request: URL" throw ] unless ; inline
+
+: read-request-line ( request -- request )
+    read-crlf parse-request-line first3
+    [ >>method ] [ >url check-absolute >>url ] [ >>version ] tri* ;
+
+: read-request-header ( request -- request )
+    read-header >>header ;
+
+: parse-post-data ( post-data -- post-data )
+    [ ] [ raw>> ] [ content-type>> ] tri
+    "application/x-www-form-urlencoded" = [ query>assoc ] when
+    >>content ;
+
+: read-post-data ( request -- request )
+    dup method>> "POST" = [
+        [ ]
+        [ "content-length" header string>number read ]
+        [ "content-type" header ] tri
+        <post-data> parse-post-data >>post-data
+    ] when ;
+
+: extract-host ( request -- request )
+    [ ] [ url>> ] [ "host" header parse-host ] tri
+    [ >>host ] [ >>port ] bi*
+    drop ;
+
+: extract-cookies ( request -- request )
+    dup "cookie" header [ parse-cookie >>cookies ] when* ;
+
+: read-request ( -- request )
+    <request>
+    read-request-line
+    read-request-header
+    read-post-data
+    extract-host
+    extract-cookies ;
+
+GENERIC: write-response ( response -- )
+
+GENERIC: write-full-response ( request response -- )
+
+: write-response-line ( response -- response )
+    dup
+    [ "HTTP/" write version>> write bl ]
+    [ code>> present write bl ]
+    [ message>> write crlf ]
+    tri ;
+
+: unparse-content-type ( request -- content-type )
+    [ content-type>> "application/octet-stream" or ]
+    [ content-charset>> encoding>name ]
+    bi
+    [ "; charset=" swap 3append ] when* ;
+
+: ensure-domain ( cookie -- cookie )
+    [
+        url get host>> dup "localhost" =
+        [ drop ] [ or ] if
+    ] change-domain ;
+
+: write-response-header ( response -- response )
+    #! We send one set-cookie header per cookie, because that's
+    #! what Firefox expects.
+    dup header>> >alist >vector
+    over unparse-content-type "content-type" pick set-at
+    over cookies>> [
+        ensure-domain unparse-set-cookie
+        "set-cookie" swap 2array over push
+    ] each
+    write-header ;
+
+: write-response-body ( response -- response )
+    dup body>> call-template ;
+
+M: response write-response ( respose -- )
+    write-response-line
+    write-response-header
+    flush
+    drop ;
+
+M: response write-full-response ( request response -- )
+    dup write-response
+    swap method>> "HEAD" = [
+        [ content-charset>> encode-output ]
+        [ write-response-body ]
+        bi
+    ] unless ;
+
+M: raw-response write-response ( respose -- )
+    write-response-line
+    write-response-body
+    drop ;
+
+M: raw-response write-full-response ( response -- )
+    write-response ;
+
+: post-request? ( -- ? ) request get method>> "POST" = ;
+
+SYMBOL: responder-nesting
+
+SYMBOL: main-responder
+
+SYMBOL: development?
+
+SYMBOL: benchmark?
+
+! path is a sequence of path component strings
+GENERIC: call-responder* ( path responder -- response )
+
+TUPLE: trivial-responder response ;
+
+C: <trivial-responder> trivial-responder
+
+M: trivial-responder call-responder* nip response>> clone ;
+
+main-responder global [ <404> <trivial-responder> or ] change-at
+
+: invert-slice ( slice -- slice' )
+    dup slice? [ [ seq>> ] [ from>> ] bi head-slice ] [ drop { } ] if ;
+
+: add-responder-nesting ( path responder -- )
+    [ invert-slice ] dip 2array responder-nesting get push ;
+
+: call-responder ( path responder -- response )
+    [ add-responder-nesting ] [ call-responder* ] 2bi ;
+
+: http-error. ( error -- )
+    "Internal server error" [
+        [ print-error nl :c ] with-html-stream
+    ] simple-page ;
+
+: <500> ( error -- response )
+    500 "Internal server error" <trivial-response>
+    swap development? get [ '[ , http-error. ] >>body ] [ drop ] if ;
+
+: do-response ( response -- )
+    [ request get swap write-full-response ]
+    [
+        [ \ do-response log-error ]
+        [
+            utf8 [
+                development? get
+                [ http-error. ] [ drop "Response error" write ] if
+            ] with-encoded-output
+        ] bi
+    ] recover ;
+
+LOG: httpd-hit NOTICE
+
+LOG: httpd-header NOTICE
+
+: log-header ( headers name -- )
+    tuck header 2array httpd-header ;
+
+: log-request ( request -- )
+    [ [ method>> ] [ url>> ] bi 2array httpd-hit ]
+    [ { "user-agent" "x-forwarded-for" } [ log-header ] with each ]
+    bi ;
+
+: split-path ( string -- path )
+    "/" split harvest ;
+
+: init-request ( request -- )
+    [ request set ] [ url>> url set ] bi
+    V{ } clone responder-nesting set ;
+
+: dispatch-request ( request -- response )
+    url>> path>> split-path main-responder get call-responder ;
+
+: prepare-request ( request -- )
+    [
+        local-address get
+        [ secure? "https" "http" ? >>protocol ]
+        [ port>> '[ , or ] change-port ]
+        bi
+    ] change-url drop ;
+
+: valid-request? ( request -- ? )
+    url>> port>> local-address get port>> = ;
+
+: do-request ( request -- response )
+    '[
+        ,
+        {
+            [ init-request ]
+            [ prepare-request ]
+            [ log-request ]
+            [ dup valid-request? [ dispatch-request ] [ drop <400> ] if ]
+        } cleave
+    ] [ [ \ do-request log-error ] [ <500> ] bi ] recover ;
+
+: ?refresh-all ( -- )
+    development? get-global [ global [ refresh-all ] bind ] when ;
+
+LOG: httpd-benchmark DEBUG
+
+: ?benchmark ( quot -- )
+    benchmark? get [
+        [ benchmark ] [ first ] bi url get rot 3array
+        httpd-benchmark
+    ] [ call ] if ; inline
+
+TUPLE: http-server < threaded-server ;
+
+M: http-server handle-client*
+    drop
+    [
+        64 1024 * limit-input
+        ?refresh-all
+        [ read-request ] ?benchmark
+        [ do-request ] ?benchmark
+        [ do-response ] ?benchmark
+    ] with-destructors ;
+
+: <http-server> ( -- server )
+    http-server new-threaded-server
+        "http.server" >>name
+        "http" protocol-port >>insecure
+        "https" protocol-port >>secure ;
+
+: httpd ( port -- )
+    <http-server>
+        swap >>insecure
+        f >>secure
+    start-server ;
+
+: http-insomniac ( -- )
+    "http.server" { "httpd-hit" } schedule-insomniac ;
diff --git a/extra/http/server/static/static.factor b/basis/http/server/static/static.factor
similarity index 87%
rename from extra/http/server/static/static.factor
rename to basis/http/server/static/static.factor
index 1d86a73cfa..dfbe93d86d 100755
--- a/extra/http/server/static/static.factor
+++ b/basis/http/server/static/static.factor
@@ -29,7 +29,10 @@ TUPLE: file-responder root hook special allow-listings ;
         H{ } clone >>special ;
 
 : (serve-static) ( path mime-type -- response )
-    [ [ binary <file-reader> &dispose ] dip <content> ]
+    [
+        [ binary <file-reader> &dispose ] dip
+        <content> binary >>content-charset
+    ]
     [ drop file-info [ size>> ] [ modified>> ] bi ] 2bi
     [ "content-length" set-header ]
     [ "last-modified" set-header ] bi* ;
@@ -42,9 +45,9 @@ TUPLE: file-responder root hook special allow-listings ;
     [ file-responder get hook>> call ] [ 2drop <304> ] if ;
 
 : serving-path ( filename -- filename )
-    file-responder get root>> right-trim-separators
+    file-responder get root>> trim-right-separators
     "/"
-    rot "" or left-trim-separators 3append ;
+    rot "" or trim-left-separators 3append ;
 
 : serve-file ( filename -- response )
     dup mime-type
@@ -79,12 +82,12 @@ TUPLE: file-responder root hook special allow-listings ;
     "index.html" append-path dup exists? [ drop f ] unless ;
 
 : serve-directory ( filename -- response )
-    request get path>> "/" tail? [
+    url get path>> "/" tail? [
         dup
         find-index [ serve-file ] [ list-directory ] ?if
     ] [
         drop
-        request get url>> clone [ "/" append ] change-path <permanent-redirect>
+        url get clone [ "/" append ] change-path <permanent-redirect>
     ] if ;
 
 : serve-object ( filename -- response )
diff --git a/extra/http/server/summary.txt b/basis/http/server/summary.txt
similarity index 100%
rename from extra/http/server/summary.txt
rename to basis/http/server/summary.txt
diff --git a/extra/http/server/tags.txt b/basis/http/server/tags.txt
similarity index 100%
rename from extra/http/server/tags.txt
rename to basis/http/server/tags.txt
diff --git a/extra/http/summary.txt b/basis/http/summary.txt
similarity index 100%
rename from extra/http/summary.txt
rename to basis/http/summary.txt
diff --git a/extra/http/tags.txt b/basis/http/tags.txt
similarity index 100%
rename from extra/http/tags.txt
rename to basis/http/tags.txt
diff --git a/extra/http/test/foo.html b/basis/http/test/foo.html
similarity index 100%
rename from extra/http/test/foo.html
rename to basis/http/test/foo.html
diff --git a/extra/cocoa/subclassing/authors.txt b/basis/inspector/authors.txt
similarity index 100%
rename from extra/cocoa/subclassing/authors.txt
rename to basis/inspector/authors.txt
diff --git a/core/inspector/inspector-docs.factor b/basis/inspector/inspector-docs.factor
similarity index 82%
rename from core/inspector/inspector-docs.factor
rename to basis/inspector/inspector-docs.factor
index ab1c38b0b7..82e1e104d1 100644
--- a/core/inspector/inspector-docs.factor
+++ b/basis/inspector/inspector-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax kernel classes io io.styles ;
+USING: help.markup help.syntax kernel classes io io.styles mirrors ;
 IN: inspector
 
 ARTICLE: "inspector" "The inspector"
@@ -22,9 +22,7 @@ $nl
 { $subsection inspector-hook }
 "A description of an object can be printed without starting the inspector:"
 { $subsection describe }
-{ $subsection describe* }
-"A word for getting very brief descriptions of words and general objects:"
-{ $subsection summary } ;
+{ $subsection describe* } ;
 
 ABOUT: "inspector"
 
@@ -43,21 +41,10 @@ $nl
 { $examples { $code "global describe" } } ;
 
 HELP: describe*
-{ $values { "obj" object } { "flags" "an assoc" } }
-{ $description "Print a tabular overview of the object."
-$nl
-"The assoc can contain any of the following keys:"
-{ $list
-    { { $link +number-rows+ } " - if set to a true value, every row of output will begin with a row number." }
-    { { $link +editable+ } " - if set to a true value, keys and values will be editable in place, if the output stream supports it." }
-    { { $link +sequence+ } " - if set to a true value, keys will not be printed, only values." }
-} }
+{ $values { "obj" object } { "mirror" mirror } { "keys" "a sequence of objects" } }
+{ $description "Print a tabular overview of the object." }
 { $notes "This word is a factor of " { $link describe } " and " { $link inspect } "." } ;
 
-HELP: summary
-{ $values { "object" object } { "string" "a string" } }
-{ $contract "Outputs a brief description of the object." } ;
-
 HELP: inspector-stack
 { $var-description "If the inspector is running, this variable holds previously-inspected objects." } ;
 
diff --git a/basis/inspector/inspector-tests.factor b/basis/inspector/inspector-tests.factor
new file mode 100644
index 0000000000..c230364342
--- /dev/null
+++ b/basis/inspector/inspector-tests.factor
@@ -0,0 +1,37 @@
+USING: kernel tools.test math namespaces prettyprint
+sequences inspector io.streams.string ;
+IN: inspector.tests
+
+[ 1 2 3 ] describe
+f describe
+\ + describe
+H{ } describe
+H{ } describe
+
+[ "fixnum instance\n" ] [ [ 3 describe ] with-string-writer ] unit-test
+
+[ ] [ inspector-hook get-global inspector-hook set ] unit-test
+
+[ ] [ H{ } clone inspect ] unit-test
+
+[ ] [ "a" "b" &add ] unit-test
+
+[ H{ { "b" "a" } } ] [ me get ] unit-test
+
+[ ] [ "x" 0 &put ] unit-test
+
+[ H{ { "b" "x" } } ] [ me get ] unit-test
+
+[ ] [ 0 &at ] unit-test
+
+[ "x" ] [ me get ] unit-test
+
+[ ] [ &back ] unit-test
+
+[ ] [ "y" 0 &rename ] unit-test
+
+[ H{ { "y" "x" } } ] [ me get ] unit-test
+
+[ ] [ 0 &delete ] unit-test
+
+[ H{ } ] [ me get ] unit-test
diff --git a/core/inspector/inspector.factor b/basis/inspector/inspector.factor
similarity index 60%
rename from core/inspector/inspector.factor
rename to basis/inspector/inspector.factor
index 0ab016b0fa..7b451d5266 100755
--- a/core/inspector/inspector.factor
+++ b/basis/inspector/inspector.factor
@@ -1,48 +1,11 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic hashtables io kernel assocs math
+USING: accessors arrays generic hashtables io kernel assocs math
 namespaces prettyprint sequences strings io.styles vectors words
 quotations mirrors splitting math.parser classes vocabs refs
-sets ;
+sets sorting summary debugger continuations ;
 IN: inspector
 
-GENERIC: summary ( object -- string )
-
-: object-summary ( object -- string )
-    class word-name " instance" append ;
-
-M: object summary object-summary ;
-
-M: input summary
-    [
-        "Input: " %
-        input-string "\n" split1 swap %
-        "..." "" ? %
-    ] "" make ;
-
-M: word summary synopsis ;
-
-M: sequence summary
-    [
-        dup class word-name %
-        " with " %
-        length #
-        " elements" %
-    ] "" make ;
-
-M: assoc summary
-    [
-        dup class word-name %
-        " with " %
-        assoc-size #
-        " entries" %
-    ] "" make ;
-
-! Override sequence => integer instance
-M: f summary object-summary ;
-
-M: integer summary object-summary ;
-
 : value-editor ( path -- )
     [
         [ pprint-short ] presented-printer set
@@ -70,54 +33,64 @@ SYMBOL: +editable+
 : write-value ( mirror key -- )
     <value-ref> write-slot-editor ;
 
-: describe-row ( obj key n -- )
+: describe-row ( mirror key n -- )
     [
         +number-rows+ get [ pprint-cell ] [ drop ] if
-        2dup write-key write-value
+        [ write-key ] [ write-value ] 2bi
     ] with-row ;
 
 : summary. ( obj -- ) [ summary ] keep write-object nl ;
 
-: describe* ( obj flags -- )
-    clone [
-        dup summary.
-        make-mirror dup keys dup empty? [
-            2drop
-        ] [
-            dup enum? [ +sequence+ on ] when
-            standard-table-style [
-                dup length
-                rot [ -rot describe-row ] curry 2each
-            ] tabular-output
-        ] if
-    ] bind ;
+: sorted-keys ( assoc -- alist )
+    dup hashtable? [
+        keys
+        [ [ unparse-short ] keep ] { } map>assoc
+        sort-keys values
+    ] [ keys ] if ;
 
-: describe ( obj -- ) H{ } describe* ;
+: describe* ( obj mirror keys -- )
+    rot summary.
+    [
+        drop
+    ] [
+        dup enum? [ +sequence+ on ] when
+        standard-table-style [
+            swap [ -rot describe-row ] curry each-index
+        ] tabular-output
+    ] if-empty ;
+
+: describe ( obj -- )
+    dup make-mirror dup sorted-keys describe* ;
+
+M: tuple error. describe ;
 
 : namestack. ( seq -- )
-    [
-        [ global eq? not ] filter
-        [ keys ] map concat prune
-    ] keep [ dupd assoc-stack ] curry H{ } map>assoc describe ;
+    [ [ global eq? not ] filter [ keys ] gather ] keep
+    [ dupd assoc-stack ] curry H{ } map>assoc describe ;
 
 : .vars ( -- )
     namestack namestack. ;
 
+: :vars ( -- )
+    error-continuation get name>> namestack. ;
+
 SYMBOL: inspector-hook
 
-[ H{ { +number-rows+ t } } describe* ] inspector-hook set-global
+[ t +number-rows+ [ describe* ] with-variable ] inspector-hook set-global
 
 SYMBOL: inspector-stack
 
 SYMBOL: me
 
 : reinspect ( obj -- )
-    dup me set
-    dup make-mirror dup mirror set keys \ keys set
-    inspector-hook get call ;
+    [ me set ]
+    [
+        dup make-mirror dup mirror set dup sorted-keys dup \ keys set
+        inspector-hook get call
+    ] bi ;
 
 : (inspect) ( obj -- )
-    dup inspector-stack get push reinspect ;
+    [ inspector-stack get push ] [ reinspect ] bi ;
 
 : key@ ( n -- key ) \ keys get nth ;
 
@@ -150,6 +123,7 @@ SYMBOL: me
     "&add ( value key -- ) add new slot" print
     "&delete ( n -- ) remove a slot" print
     "&rename ( key n -- ) change a slot's key" print
+    "&globals ( -- ) inspect global namespace" print
     "&help -- display this message" print
     nl ;
 
@@ -160,3 +134,5 @@ SYMBOL: me
 
 : inspect ( obj -- )
     inspector-stack get [ (inspect) ] [ inspector ] if ;
+
+: &globals ( -- ) global inspect ;
diff --git a/core/inspector/summary.txt b/basis/inspector/summary.txt
similarity index 100%
rename from core/inspector/summary.txt
rename to basis/inspector/summary.txt
diff --git a/core/inspector/tags.txt b/basis/inspector/tags.txt
similarity index 100%
rename from core/inspector/tags.txt
rename to basis/inspector/tags.txt
diff --git a/extra/interval-maps/authors.txt b/basis/interval-maps/authors.txt
similarity index 100%
rename from extra/interval-maps/authors.txt
rename to basis/interval-maps/authors.txt
diff --git a/extra/interval-maps/interval-maps-docs.factor b/basis/interval-maps/interval-maps-docs.factor
similarity index 100%
rename from extra/interval-maps/interval-maps-docs.factor
rename to basis/interval-maps/interval-maps-docs.factor
diff --git a/extra/interval-maps/interval-maps-tests.factor b/basis/interval-maps/interval-maps-tests.factor
similarity index 100%
rename from extra/interval-maps/interval-maps-tests.factor
rename to basis/interval-maps/interval-maps-tests.factor
diff --git a/extra/interval-maps/interval-maps.factor b/basis/interval-maps/interval-maps.factor
similarity index 58%
rename from extra/interval-maps/interval-maps.factor
rename to basis/interval-maps/interval-maps.factor
index 888665030d..a62855d78f 100755
--- a/extra/interval-maps/interval-maps.factor
+++ b/basis/interval-maps/interval-maps.factor
@@ -1,48 +1,45 @@
-USING: kernel sequences arrays accessors tuple-arrays
-math.order sorting math assocs locals namespaces ;
+! Copyright (C) 2008 Daniel Ehrenberg.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences arrays accessors grouping math.order
+sorting binary-search math assocs locals namespaces ;
 IN: interval-maps
 
 TUPLE: interval-map array ;
 
 <PRIVATE
-TUPLE: interval-node from to value ;
 
-: fixup-value ( value ? -- value/f ? )
-    [ drop f f ] unless* ;
+: find-interval ( key interval-map -- interval-node )
+    [ first <=> ] with search nip ;
 
-: find-interval ( key interval-map -- i )
-    [ from>> <=> ] binsearch ;
-
-: interval-contains? ( object interval-node -- ? )
-    [ from>> ] [ to>> ] bi between? ;
+: interval-contains? ( key interval-node -- ? )
+    first2 between? ;
 
 : all-intervals ( sequence -- intervals )
-    [ >r dup number? [ dup 2array ] when r> ] assoc-map
-    { } assoc-like ;
+    [ >r dup number? [ dup 2array ] when r> ] { } assoc-map-as ;
 
 : disjoint? ( node1 node2 -- ? )
-    [ to>> ] [ from>> ] bi* < ;
+    [ second ] [ first ] bi* < ;
 
 : ensure-disjoint ( intervals -- intervals )
     dup [ disjoint? ] monotonic?
     [ "Intervals are not disjoint" throw ] unless ;
 
 : >intervals ( specification -- intervals )
-    [ >r first2 r> interval-node boa ] { } assoc>map ;
+    [ suffix ] { } assoc>map concat 3 <groups> ;
+
 PRIVATE>
 
 : interval-at* ( key map -- value ? )
-    array>> [ find-interval ] 2keep swapd nth
-    [ nip value>> ] [ interval-contains? ] 2bi
-    fixup-value ;
+    [ drop ] [ array>> find-interval ] 2bi
+    tuck interval-contains? [ third t ] [ drop f f ] if ;
 
 : interval-at ( key map -- value ) interval-at* drop ;
+
 : interval-key? ( key map -- ? ) interval-at* nip ;
 
 : <interval-map> ( specification -- map )
     all-intervals [ [ first second ] compare ] sort
-    >intervals ensure-disjoint >tuple-array
-    interval-map boa ;
+    >intervals ensure-disjoint interval-map boa ;
 
 : <interval-set> ( specification -- map )
     [ dup 2array ] map <interval-map> ;
diff --git a/extra/interval-maps/summary.txt b/basis/interval-maps/summary.txt
similarity index 100%
rename from extra/interval-maps/summary.txt
rename to basis/interval-maps/summary.txt
diff --git a/extra/interval-maps/tags.txt b/basis/interval-maps/tags.txt
similarity index 100%
rename from extra/interval-maps/tags.txt
rename to basis/interval-maps/tags.txt
diff --git a/extra/cocoa/types/authors.txt b/basis/io/buffers/authors.txt
similarity index 100%
rename from extra/cocoa/types/authors.txt
rename to basis/io/buffers/authors.txt
diff --git a/extra/io/buffers/buffers-docs.factor b/basis/io/buffers/buffers-docs.factor
similarity index 60%
rename from extra/io/buffers/buffers-docs.factor
rename to basis/io/buffers/buffers-docs.factor
index a11a7adead..fbe352185c 100755
--- a/extra/io/buffers/buffers-docs.factor
+++ b/basis/io/buffers/buffers-docs.factor
@@ -1,14 +1,18 @@
-USING: help.markup help.syntax byte-arrays alien ;
+USING: help.markup help.syntax byte-arrays alien destructors ;
 IN: io.buffers
 
 ARTICLE: "buffers" "Locked I/O buffers"
-"I/O buffers are first-in-first-out queues of bytes. Their key feature is that they are backed by manually allocated storage that does not get moved by the garbage collector. They are used to implement native I/O backends."
+"I/O buffers are first-in-first-out queues of bytes."
+$nl
+"Buffers are backed by manually allocated storage that does not get moved by the garbage collector; they are also low-level and sacrifice error checking for efficiency."
+$nl
+"Buffers are used to implement native I/O backends."
 $nl
 "Buffer words are found in the " { $vocab-link "buffers" } " vocabulary."
 { $subsection buffer }
 { $subsection <buffer> }
-"Buffers must be manually deallocated:"
-{ $subsection buffer-free }
+"Buffers must be manually deallocated by calling " { $link dispose } "."
+$nl
 "Buffer operations:"
 { $subsection buffer-reset }
 { $subsection buffer-length }
@@ -20,7 +24,6 @@ $nl
 { $subsection buffer-pop }
 { $subsection buffer-read }
 "Writing to the buffer:"
-{ $subsection extend-buffer }
 { $subsection byte>buffer }
 { $subsection >buffer }
 { $subsection n>buffer } ;
@@ -32,19 +35,14 @@ HELP: buffer
 $nl
 "Buffers have two internal pointers:"
 { $list
-    { { $link buffer-fill } " - the fill pointer, a write index where new data is added" }
-    { { $link buffer-pos } " - the position, a read index where data is consumed" }
+    { { $snippet "fill" } " - the fill pointer, a write index where new data is added" }
+    { { $snippet "pos" } " - the position, a read index where data is consumed" }
 } } ;
 
 HELP: <buffer>
 { $values { "n" "a non-negative integer" } { "buffer" buffer } }
 { $description "Creates a buffer with an initial capacity of " { $snippet "n" } " bytes." } ;
 
-HELP: buffer-free
-{ $values { "buffer" buffer } }
-{ $description "De-allocates a buffer's underlying storage. The buffer may not be used after being freed." }
-{ $warning "You " { $emphasis "must" } " free a buffer using this word, before letting the GC collect the buffer tuple instance." } ;
-
 HELP: buffer-reset
 { $values { "n" "a non-negative integer" } { "buffer" buffer } }
 { $description "Resets the fill pointer to 0 and the position to " { $snippet "count" } "." } ;
@@ -61,10 +59,6 @@ HELP: buffer-end
 { $values { "buffer" buffer } { "alien" alien } }
 { $description "Outputs the memory address of the current fill-pointer." } ;
 
-HELP: (buffer-read)
-{ $values { "n" "a non-negative integer" } { "buffer" buffer } { "byte-array" byte-array } }
-{ $description "Outputs a byte array of the first " { $snippet "n" } " bytes at the buffer's current position. If there are less than " { $snippet "n" } " bytes available, the output is truncated." } ;
-
 HELP: buffer-read
 { $values { "n" "a non-negative integer" } { "buffer" buffer } { "byte-array" byte-array } }
 { $description "Collects a byte array of " { $snippet "n" } " bytes starting from the buffer's current position, and advances the position accordingly. If there are less than " { $snippet "n" } " bytes available, the output is truncated." } ;
@@ -81,28 +75,20 @@ HELP: buffer-empty?
 { $values { "buffer" buffer } { "?" "a boolean" } }
 { $description "Tests if the buffer contains no more data to be read." } ;
 
-HELP: extend-buffer
-{ $values { "n" "a non-negative integer" } { "buffer" buffer } }
-{ $description "Grows a buffer to fit " { $snippet "n" } " bytes of data." } ;
-
-HELP: check-overflow
-{ $values { "n" "a non-negative integer" } { "buffer" buffer } }
-{ $description "Grows the buffer, if possible, so it can accomodate " { $snippet "n" } " bytes." }
-{ $warning "I/O system implementations should call this word or one of the other words that calls this word, at the beginning of an I/O transaction, when the buffer is empty. Buffers cannot be resized if they contain data; one of the requirements of a buffer is to remain fixed in memory while I/O operations are in progress." }
-{ $errors "Throws an error if the buffer contains unread data, and the new data does not fit." } ;
-
 HELP: >buffer
 { $values { "byte-array" byte-array } { "buffer" buffer } }
-{ $description "Copies a byte array to the buffer's fill pointer, and advances it accordingly." } ;
+{ $description "Copies a byte array to the buffer's fill pointer, and advances it accordingly." }
+{ $warning "This word will corrupt memory if the byte array is larger than the space available in the buffer." } ;
 
 HELP: byte>buffer
 { $values { "byte" "a byte" } { "buffer" buffer } }
-{ $description "Appends a single byte to a buffer." } ;
+{ $description "Appends a single byte to a buffer." }
+{ $warning "This word will corrupt memory if the buffer is full." } ;
 
 HELP: n>buffer
 { $values { "n" "a non-negative integer" } { "buffer" buffer } }
 { $description "Advances the fill pointer by " { $snippet "n" } " bytes." }
-{ $errors "Throws an error if the buffer does not contain " { $snippet "n" } " bytes of data." } ;
+{ $warning "This word will leave the buffer in an invalid state if it does not have " { $snippet "n" } " bytes available." } ;
 
 HELP: buffer-peek
 { $values { "buffer" buffer } { "byte" "a byte" } }
diff --git a/extra/io/buffers/buffers-tests.factor b/basis/io/buffers/buffers-tests.factor
similarity index 73%
rename from extra/io/buffers/buffers-tests.factor
rename to basis/io/buffers/buffers-tests.factor
index f66f9ed313..b3c5c4ee90 100755
--- a/extra/io/buffers/buffers-tests.factor
+++ b/basis/io/buffers/buffers-tests.factor
@@ -1,9 +1,10 @@
 IN: io.buffers.tests
 USING: alien alien.c-types io.buffers kernel kernel.private libc
-sequences tools.test namespaces byte-arrays strings accessors ;
+sequences tools.test namespaces byte-arrays strings accessors
+destructors ;
 
 : buffer-set ( string buffer -- )
-    over >byte-array over buffer-ptr byte-array>memory
+    over >byte-array over ptr>> byte-array>memory
     >r length r> buffer-reset ;
 
 : string>buffer ( string -- buffer )
@@ -18,7 +19,7 @@ sequences tools.test namespaces byte-arrays strings accessors ;
     65536 <buffer>
     dup buffer-read-all
     over buffer-capacity
-    rot buffer-free
+    rot dispose
 ] unit-test
 
 [ "hello world" "" ] [
@@ -26,34 +27,34 @@ sequences tools.test namespaces byte-arrays strings accessors ;
     dup buffer-read-all >string
     0 pick buffer-reset
     over buffer-read-all >string
-    rot buffer-free
+    rot dispose
 ] unit-test
 
 [ "hello" ] [
     "hello world" string>buffer
-    5 over buffer-read >string swap buffer-free
+    5 over buffer-read >string swap dispose
 ] unit-test
 
 [ 11 ] [
     "hello world" string>buffer
-    [ buffer-length ] keep buffer-free
+    [ buffer-length ] keep dispose
 ] unit-test
 
 [ "hello world" ] [
     "hello" 1024 <buffer> [ buffer-set ] keep
     " world" >byte-array over >buffer
-    dup buffer-read-all >string swap buffer-free
+    dup buffer-read-all >string swap dispose
 ] unit-test
 
 [ CHAR: e ] [
     "hello" string>buffer
-    1 over buffer-consume [ buffer-pop ] keep buffer-free
+    1 over buffer-consume [ buffer-pop ] keep dispose
 ] unit-test
 
 "hello world" string>buffer "b" set
 [ "hello world" ] [ 1000 "b" get buffer-read >string ] unit-test
-"b" get buffer-free
+"b" get dispose
 
 100 <buffer> "b" set
 [ 1000 "b" get n>buffer >string ] must-fail
-"b" get buffer-free
+"b" get dispose
diff --git a/basis/io/buffers/buffers.factor b/basis/io/buffers/buffers.factor
new file mode 100755
index 0000000000..e6a0070ee0
--- /dev/null
+++ b/basis/io/buffers/buffers.factor
@@ -0,0 +1,96 @@
+! Copyright (C) 2004, 2005 Mackenzie Straight.
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien alien.accessors alien.c-types
+alien.syntax kernel libc math sequences byte-arrays strings
+hints accessors math.order destructors combinators ;
+IN: io.buffers
+
+TUPLE: buffer
+{ size fixnum }
+{ ptr simple-alien }
+{ fill fixnum }
+{ pos fixnum }
+disposed ;
+
+: <buffer> ( n -- buffer )
+    dup malloc 0 0 f buffer boa ;
+
+M: buffer dispose* ptr>> free ;
+
+: buffer-reset ( n buffer -- )
+    swap >>fill 0 >>pos drop ;
+
+: buffer-capacity ( buffer -- n )
+    [ size>> ] [ fill>> ] bi - ; inline
+
+: buffer-empty? ( buffer -- ? )
+    fill>> zero? ; inline
+
+: buffer-consume ( n buffer -- )
+    [ + ] change-pos
+    dup [ pos>> ] [ fill>> ] bi <
+    [ 0 >>pos 0 >>fill ] unless drop ; inline
+
+: buffer-peek ( buffer -- byte )
+    [ ptr>> ] [ pos>> ] bi alien-unsigned-1 ; inline
+
+: buffer-pop ( buffer -- byte )
+    [ buffer-peek ] [ 1 swap buffer-consume ] bi ;
+
+HINTS: buffer-pop buffer ;
+
+: buffer-length ( buffer -- n )
+    [ fill>> ] [ pos>> ] bi - ; inline
+
+: buffer@ ( buffer -- alien )
+    [ pos>> ] [ ptr>> ] bi <displaced-alien> ;
+
+: buffer-read ( n buffer -- byte-array )
+    [ buffer-length min ] keep
+    [ buffer@ ] [ buffer-consume ] 2bi
+    swap memory>byte-array ;
+
+HINTS: buffer-read fixnum buffer ;
+
+: buffer-end ( buffer -- alien )
+    [ fill>> ] [ ptr>> ] bi <displaced-alien> ; inline
+
+: n>buffer ( n buffer -- )
+    [ + ] change-fill drop ; inline
+
+HINTS: n>buffer fixnum buffer ;
+
+: >buffer ( byte-array buffer -- )
+    [ buffer-end byte-array>memory ]
+    [ [ length ] dip n>buffer ]
+    2bi ;
+
+HINTS: >buffer byte-array buffer ;
+
+: byte>buffer ( byte buffer -- )
+    [ [ ptr>> ] [ fill>> ] bi set-alien-unsigned-1 ]
+    [ 1 swap n>buffer ]
+    bi ;
+
+HINTS: byte>buffer fixnum buffer ;
+
+: search-buffer-until ( pos fill ptr separators -- n )
+    [ [ swap alien-unsigned-1 ] dip memq? ] 2curry find-from drop ;
+
+: finish-buffer-until ( buffer n -- byte-array separator )
+    [
+        over pos>> -
+        over buffer-read
+        swap buffer-pop
+    ] [
+        [ buffer-length ] keep
+        buffer-read f
+    ] if* ;
+
+: buffer-until ( separators buffer -- byte-array separator )
+    swap [ { [ ] [ pos>> ] [ fill>> ] [ ptr>> ] } cleave ] dip
+    search-buffer-until
+    finish-buffer-until ;
+
+HINTS: buffer-until { string buffer } ;
diff --git a/extra/io/buffers/summary.txt b/basis/io/buffers/summary.txt
similarity index 100%
rename from extra/io/buffers/summary.txt
rename to basis/io/buffers/summary.txt
diff --git a/extra/io/encodings/8-bit/8-bit-docs.factor b/basis/io/encodings/8-bit/8-bit-docs.factor
similarity index 94%
rename from extra/io/encodings/8-bit/8-bit-docs.factor
rename to basis/io/encodings/8-bit/8-bit-docs.factor
index 33d629b105..8f5e955998 100644
--- a/extra/io/encodings/8-bit/8-bit-docs.factor
+++ b/basis/io/encodings/8-bit/8-bit-docs.factor
@@ -24,20 +24,13 @@ ARTICLE: "io.encodings.8-bit" "8-bit encodings"
 { $subsection koi8-r }
 { $subsection windows-1252 }
 { $subsection ebcdic }
-{ $subsection mac-roman }
-"Words used in defining these"
-{ $subsection 8-bit }
-{ $subsection define-8-bit-encoding } ;
+{ $subsection mac-roman } ;
 
 ABOUT: "io.encodings.8-bit"
 
 HELP: 8-bit
 { $class-description "Describes an 8-bit encoding, including its name (a symbol) and a table used for encoding and decoding." } ;
 
-HELP: define-8-bit-encoding
-{ $values { "name" string } { "stream" "an input stream" } }
-{ $description "Creates a new encoding. The stream should be in a similar format to those at " { $url "ftp://ftp.unicode.org/Public/MAPPINGS/ISO8859/" } } ;
-
 HELP: latin1
 { $description "This is the ISO-8859-1 encoding, also called Latin-1: Western European. It is an 8-bit superset of ASCII which is the default for a mimetype starting with 'text' and provides the characters necessary for most western European languages." } 
 { $see-also "encodings-introduction" } ;
diff --git a/extra/io/encodings/8-bit/8-bit-tests.factor b/basis/io/encodings/8-bit/8-bit-tests.factor
similarity index 68%
rename from extra/io/encodings/8-bit/8-bit-tests.factor
rename to basis/io/encodings/8-bit/8-bit-tests.factor
index 24cd4137d4..8b18e2a9af 100644
--- a/extra/io/encodings/8-bit/8-bit-tests.factor
+++ b/basis/io/encodings/8-bit/8-bit-tests.factor
@@ -1,4 +1,5 @@
-USING: io.encodings.string io.encodings.8-bit tools.test strings arrays ;
+USING: io.encodings.string io.encodings.8-bit
+io.encodings.8-bit.private tools.test strings arrays ;
 IN: io.encodings.8-bit.tests
 
 [ B{ CHAR: f CHAR: o CHAR: o } ] [ "foo" latin1 encode ] unit-test
@@ -8,3 +9,6 @@ IN: io.encodings.8-bit.tests
 [ "bar" ] [ "bar" latin1 decode ] unit-test
 [ { CHAR: b 233 CHAR: r } ] [ { CHAR: b 233 CHAR: r } latin1 decode >array ] unit-test
 [ { HEX: fffd HEX: 20AC } ] [ { HEX: 81 HEX: 80 } windows-1252 decode >array ] unit-test
+
+[ t ] [ \ latin1 8-bit-encoding? ] unit-test
+[ "bar" ] [ "bar" \ latin1 decode ] unit-test
diff --git a/extra/io/encodings/8-bit/8-bit.factor b/basis/io/encodings/8-bit/8-bit.factor
similarity index 62%
rename from extra/io/encodings/8-bit/8-bit.factor
rename to basis/io/encodings/8-bit/8-bit.factor
index a8cd1fea91..2cafb6be47 100755
--- a/extra/io/encodings/8-bit/8-bit.factor
+++ b/basis/io/encodings/8-bit/8-bit.factor
@@ -30,15 +30,12 @@ IN: io.encodings.8-bit
 } ;
 
 : encoding-file ( file-name -- stream )
-    "resource:extra/io/encodings/8-bit/" ".TXT"
-    swapd 3append ascii <file-reader> ;
-
-: tail-if ( seq n -- newseq )
-    2dup swap length <= [ tail ] [ drop ] if ;
+    "resource:basis/io/encodings/8-bit/" swap ".TXT"
+    3append ascii <file-reader> ;
 
 : process-contents ( lines -- assoc )
     [ "#" split1 drop ] map harvest
-    [ "\t" split 2 head [ 2 tail-if hex> ] map ] map ;
+    [ "\t" split 2 head [ 2 short tail hex> ] map ] map ;
 
 : byte>ch ( assoc -- array )
     256 replacement-char <array>
@@ -51,32 +48,40 @@ IN: io.encodings.8-bit
     lines process-contents
     [ byte>ch ] [ ch>byte ] bi ;
 
-TUPLE: 8-bit name decode encode ;
+SYMBOL: 8-bit-encodings
+
+TUPLE: 8-bit decode encode ;
 
 : encode-8-bit ( char stream assoc -- )
-    swapd at* [ encode-error ] unless swap stream-write1 ;
+    swapd at*
+    [ swap stream-write1 ] [ nip encode-error ] if ; inline
 
-M: 8-bit encode-char
-    encode>> encode-8-bit ;
+M: 8-bit encode-char encode>> encode-8-bit ;
 
 : decode-8-bit ( stream array -- char/f )
     swap stream-read1 dup
-    [ swap nth [ replacement-char ] unless* ]
-    [ nip ] if ;
+    [ swap nth [ replacement-char ] unless* ] [ 2drop f ] if ; inline
 
-M: 8-bit decode-char
-    decode>> decode-8-bit ;
+M: 8-bit decode-char decode>> decode-8-bit ;
 
-: make-8-bit ( word byte>ch ch>byte -- )
-    [ 8-bit boa ] 2curry dupd curry define ;
+PREDICATE: 8-bit-encoding < word
+    8-bit-encodings get-global key? ;
 
-: define-8-bit-encoding ( name stream -- )
-    >r in get create r> parse-file make-8-bit ;
+M: 8-bit-encoding <encoder>
+    8-bit-encodings get-global at <encoder> ;
+
+M: 8-bit-encoding <decoder>
+    8-bit-encodings get-global at <decoder> ;
 
 PRIVATE>
 
 [
-    "io.encodings.8-bit" in [
-        mappings [ encoding-file define-8-bit-encoding ] assoc-each
-    ] with-variable
+    mappings [
+        [ "io.encodings.8-bit" create ]
+        [ encoding-file parse-file 8-bit boa ]
+        bi*
+    ] assoc-map
+    [ keys [ define-symbol ] each ]
+    [ 8-bit-encodings set-global ]
+    bi
 ] with-compilation-unit
diff --git a/extra/io/encodings/8-bit/8859-1.TXT b/basis/io/encodings/8-bit/8859-1.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-1.TXT
rename to basis/io/encodings/8-bit/8859-1.TXT
diff --git a/extra/io/encodings/8-bit/8859-10.TXT b/basis/io/encodings/8-bit/8859-10.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-10.TXT
rename to basis/io/encodings/8-bit/8859-10.TXT
diff --git a/extra/io/encodings/8-bit/8859-11.TXT b/basis/io/encodings/8-bit/8859-11.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-11.TXT
rename to basis/io/encodings/8-bit/8859-11.TXT
diff --git a/extra/io/encodings/8-bit/8859-13.TXT b/basis/io/encodings/8-bit/8859-13.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-13.TXT
rename to basis/io/encodings/8-bit/8859-13.TXT
diff --git a/extra/io/encodings/8-bit/8859-14.TXT b/basis/io/encodings/8-bit/8859-14.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-14.TXT
rename to basis/io/encodings/8-bit/8859-14.TXT
diff --git a/extra/io/encodings/8-bit/8859-15.TXT b/basis/io/encodings/8-bit/8859-15.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-15.TXT
rename to basis/io/encodings/8-bit/8859-15.TXT
diff --git a/extra/io/encodings/8-bit/8859-16.TXT b/basis/io/encodings/8-bit/8859-16.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-16.TXT
rename to basis/io/encodings/8-bit/8859-16.TXT
diff --git a/extra/io/encodings/8-bit/8859-2.TXT b/basis/io/encodings/8-bit/8859-2.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-2.TXT
rename to basis/io/encodings/8-bit/8859-2.TXT
diff --git a/extra/io/encodings/8-bit/8859-3.TXT b/basis/io/encodings/8-bit/8859-3.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-3.TXT
rename to basis/io/encodings/8-bit/8859-3.TXT
diff --git a/extra/io/encodings/8-bit/8859-4.TXT b/basis/io/encodings/8-bit/8859-4.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-4.TXT
rename to basis/io/encodings/8-bit/8859-4.TXT
diff --git a/extra/io/encodings/8-bit/8859-5.TXT b/basis/io/encodings/8-bit/8859-5.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-5.TXT
rename to basis/io/encodings/8-bit/8859-5.TXT
diff --git a/extra/io/encodings/8-bit/8859-6.TXT b/basis/io/encodings/8-bit/8859-6.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-6.TXT
rename to basis/io/encodings/8-bit/8859-6.TXT
diff --git a/extra/io/encodings/8-bit/8859-7.TXT b/basis/io/encodings/8-bit/8859-7.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-7.TXT
rename to basis/io/encodings/8-bit/8859-7.TXT
diff --git a/extra/io/encodings/8-bit/8859-8.TXT b/basis/io/encodings/8-bit/8859-8.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-8.TXT
rename to basis/io/encodings/8-bit/8859-8.TXT
diff --git a/extra/io/encodings/8-bit/8859-9.TXT b/basis/io/encodings/8-bit/8859-9.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/8859-9.TXT
rename to basis/io/encodings/8-bit/8859-9.TXT
diff --git a/extra/io/encodings/8-bit/CP037.TXT b/basis/io/encodings/8-bit/CP037.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/CP037.TXT
rename to basis/io/encodings/8-bit/CP037.TXT
diff --git a/extra/io/encodings/8-bit/CP1252.TXT b/basis/io/encodings/8-bit/CP1252.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/CP1252.TXT
rename to basis/io/encodings/8-bit/CP1252.TXT
diff --git a/extra/io/encodings/8-bit/KOI8-R.TXT b/basis/io/encodings/8-bit/KOI8-R.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/KOI8-R.TXT
rename to basis/io/encodings/8-bit/KOI8-R.TXT
diff --git a/extra/io/encodings/8-bit/ROMAN.TXT b/basis/io/encodings/8-bit/ROMAN.TXT
similarity index 100%
rename from extra/io/encodings/8-bit/ROMAN.TXT
rename to basis/io/encodings/8-bit/ROMAN.TXT
diff --git a/extra/delegate/protocols/authors.txt b/basis/io/encodings/8-bit/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/delegate/protocols/authors.txt
rename to basis/io/encodings/8-bit/authors.txt
diff --git a/extra/io/encodings/8-bit/summary.txt b/basis/io/encodings/8-bit/summary.txt
similarity index 100%
rename from extra/io/encodings/8-bit/summary.txt
rename to basis/io/encodings/8-bit/summary.txt
diff --git a/extra/farkup/tags.txt b/basis/io/encodings/8-bit/tags.txt
similarity index 100%
rename from extra/farkup/tags.txt
rename to basis/io/encodings/8-bit/tags.txt
diff --git a/basis/io/encodings/ascii/ascii-docs.factor b/basis/io/encodings/ascii/ascii-docs.factor
new file mode 100644
index 0000000000..fa496a3526
--- /dev/null
+++ b/basis/io/encodings/ascii/ascii-docs.factor
@@ -0,0 +1,11 @@
+USING: help.markup help.syntax ;
+IN: io.encodings.ascii
+
+HELP: ascii
+{ $class-description "ASCII encoding descriptor." } ;
+
+ARTICLE: "ascii" "ASCII encoding"
+"By default, if there's a non-ASCII character in an input stream, it will be replaced with a replacement character (U+FFFD), and if a non-ASCII character is used in output, an exception is thrown."
+{ $subsection ascii } ;
+
+ABOUT: "ascii"
diff --git a/extra/io/encodings/ascii/ascii-tests.factor b/basis/io/encodings/ascii/ascii-tests.factor
similarity index 100%
rename from extra/io/encodings/ascii/ascii-tests.factor
rename to basis/io/encodings/ascii/ascii-tests.factor
diff --git a/extra/io/encodings/ascii/ascii.factor b/basis/io/encodings/ascii/ascii.factor
similarity index 70%
rename from extra/io/encodings/ascii/ascii.factor
rename to basis/io/encodings/ascii/ascii.factor
index 9ff120c5fa..08dc8d07d9 100755
--- a/extra/io/encodings/ascii/ascii.factor
+++ b/basis/io/encodings/ascii/ascii.factor
@@ -5,12 +5,11 @@ IN: io.encodings.ascii
 
 <PRIVATE
 : encode-if< ( char stream encoding max -- )
-    nip 1- pick < [ encode-error ] [ stream-write1 ] if ;
+    nip 1- pick < [ encode-error ] [ stream-write1 ] if ; inline
 
 : decode-if< ( stream encoding max -- character )
-    nip swap stream-read1
-    [ tuck > [ drop replacement-char ] unless ]
-    [ drop f ] if* ;
+    nip swap stream-read1 dup
+    [ tuck > [ drop replacement-char ] unless ] [ 2drop f ] if ; inline
 PRIVATE>
 
 SINGLETON: ascii
diff --git a/extra/hash2/authors.txt b/basis/io/encodings/ascii/authors.txt
similarity index 100%
rename from extra/hash2/authors.txt
rename to basis/io/encodings/ascii/authors.txt
diff --git a/extra/io/encodings/ascii/summary.txt b/basis/io/encodings/ascii/summary.txt
similarity index 100%
rename from extra/io/encodings/ascii/summary.txt
rename to basis/io/encodings/ascii/summary.txt
diff --git a/extra/io/encodings/8-bit/tags.txt b/basis/io/encodings/ascii/tags.txt
similarity index 100%
rename from extra/io/encodings/8-bit/tags.txt
rename to basis/io/encodings/ascii/tags.txt
diff --git a/extra/io/encodings/8-bit/authors.txt b/basis/io/encodings/iana/authors.txt
similarity index 100%
rename from extra/io/encodings/8-bit/authors.txt
rename to basis/io/encodings/iana/authors.txt
diff --git a/extra/io/encodings/iana/character-sets b/basis/io/encodings/iana/character-sets
similarity index 100%
rename from extra/io/encodings/iana/character-sets
rename to basis/io/encodings/iana/character-sets
diff --git a/extra/io/encodings/iana/iana-docs.factor b/basis/io/encodings/iana/iana-docs.factor
similarity index 100%
rename from extra/io/encodings/iana/iana-docs.factor
rename to basis/io/encodings/iana/iana-docs.factor
diff --git a/extra/io/encodings/iana/iana-tests.factor b/basis/io/encodings/iana/iana-tests.factor
similarity index 100%
rename from extra/io/encodings/iana/iana-tests.factor
rename to basis/io/encodings/iana/iana-tests.factor
diff --git a/extra/io/encodings/iana/iana.factor b/basis/io/encodings/iana/iana.factor
similarity index 85%
rename from extra/io/encodings/iana/iana.factor
rename to basis/io/encodings/iana/iana.factor
index dd429c1670..dcd806d9a0 100755
--- a/extra/io/encodings/iana/iana.factor
+++ b/basis/io/encodings/iana/iana.factor
@@ -41,6 +41,13 @@ PRIVATE>
         [ second ] map { "None" } diff
     ] map ;
 
+: more-aliases ( -- assoc )
+    H{
+        { "UTF8" utf8 }
+        { "utf8" utf8 }
+        { "utf-8" utf8 }
+    } ;
+
 : make-n>e ( stream -- n>e )
     parse-iana [ [
         dup [
@@ -48,8 +55,8 @@ PRIVATE>
             [ swap [ set ] with each ]
             [ drop ] if*
         ] with each
-    ] each ] H{ } make-assoc ;
+    ] each ] H{ } make-assoc more-aliases assoc-union ;
 PRIVATE>
 
-"resource:extra/io/encodings/iana/character-sets"
+"resource:basis/io/encodings/iana/character-sets"
 ascii <file-reader> make-n>e \ n>e-table set-value
diff --git a/extra/io/encodings/iana/summary.txt b/basis/io/encodings/iana/summary.txt
similarity index 100%
rename from extra/io/encodings/iana/summary.txt
rename to basis/io/encodings/iana/summary.txt
diff --git a/extra/io/encodings/ascii/authors.txt b/basis/io/encodings/strict/authors.txt
similarity index 100%
rename from extra/io/encodings/ascii/authors.txt
rename to basis/io/encodings/strict/authors.txt
diff --git a/extra/io/encodings/strict/strict-docs.factor b/basis/io/encodings/strict/strict-docs.factor
similarity index 97%
rename from extra/io/encodings/strict/strict-docs.factor
rename to basis/io/encodings/strict/strict-docs.factor
index e8a4f18179..b7edec2de7 100644
--- a/extra/io/encodings/strict/strict-docs.factor
+++ b/basis/io/encodings/strict/strict-docs.factor
@@ -6,5 +6,3 @@ IN: io.encodings.strict
 HELP: strict ( encoding -- strict-encoding )
 { $values { "encoding" "an encoding descriptor" } { "strict-encoding" "a strict encoding descriptor" } }
 { $description "Makes an encoding strict, that is, in the presence of a malformed code point, an error is thrown. Note that the existence of a replacement character in a file (U+FFFD) also throws an error." } ;
-
-ABOUT: strict
diff --git a/extra/io/encodings/strict/strict-tests.factor b/basis/io/encodings/strict/strict-tests.factor
similarity index 100%
rename from extra/io/encodings/strict/strict-tests.factor
rename to basis/io/encodings/strict/strict-tests.factor
diff --git a/extra/io/encodings/strict/strict.factor b/basis/io/encodings/strict/strict.factor
similarity index 90%
rename from extra/io/encodings/strict/strict.factor
rename to basis/io/encodings/strict/strict.factor
index 21eb231075..3288de601d 100644
--- a/extra/io/encodings/strict/strict.factor
+++ b/basis/io/encodings/strict/strict.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2008 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io.encodings kernel accessors inspector ;
+USING: io.encodings kernel accessors summary ;
 IN: io.encodings.strict
 
 TUPLE: strict code ;
diff --git a/extra/io/encodings/strict/summary.txt b/basis/io/encodings/strict/summary.txt
similarity index 100%
rename from extra/io/encodings/strict/summary.txt
rename to basis/io/encodings/strict/summary.txt
diff --git a/extra/io/encodings/ascii/tags.txt b/basis/io/encodings/strict/tags.txt
similarity index 100%
rename from extra/io/encodings/ascii/tags.txt
rename to basis/io/encodings/strict/tags.txt
diff --git a/extra/io/encodings/iana/authors.txt b/basis/io/encodings/string/authors.txt
similarity index 100%
rename from extra/io/encodings/iana/authors.txt
rename to basis/io/encodings/string/authors.txt
diff --git a/core/io/encodings/string/string-docs.factor b/basis/io/encodings/string/string-docs.factor
similarity index 100%
rename from core/io/encodings/string/string-docs.factor
rename to basis/io/encodings/string/string-docs.factor
diff --git a/core/io/encodings/string/string-tests.factor b/basis/io/encodings/string/string-tests.factor
similarity index 100%
rename from core/io/encodings/string/string-tests.factor
rename to basis/io/encodings/string/string-tests.factor
diff --git a/core/io/encodings/string/string.factor b/basis/io/encodings/string/string.factor
similarity index 100%
rename from core/io/encodings/string/string.factor
rename to basis/io/encodings/string/string.factor
diff --git a/core/io/encodings/string/summary.txt b/basis/io/encodings/string/summary.txt
similarity index 100%
rename from core/io/encodings/string/summary.txt
rename to basis/io/encodings/string/summary.txt
diff --git a/core/io/encodings/string/tags.factor b/basis/io/encodings/string/tags.factor
similarity index 100%
rename from core/io/encodings/string/tags.factor
rename to basis/io/encodings/string/tags.factor
diff --git a/core/io/encodings/utf16/.utf16.factor.swo b/basis/io/encodings/utf16/.utf16.factor.swo
similarity index 100%
rename from core/io/encodings/utf16/.utf16.factor.swo
rename to basis/io/encodings/utf16/.utf16.factor.swo
diff --git a/extra/io/encodings/strict/authors.txt b/basis/io/encodings/utf16/authors.txt
similarity index 100%
rename from extra/io/encodings/strict/authors.txt
rename to basis/io/encodings/utf16/authors.txt
diff --git a/core/io/encodings/utf16/summary.txt b/basis/io/encodings/utf16/summary.txt
similarity index 100%
rename from core/io/encodings/utf16/summary.txt
rename to basis/io/encodings/utf16/summary.txt
diff --git a/extra/io/encodings/strict/tags.txt b/basis/io/encodings/utf16/tags.txt
similarity index 100%
rename from extra/io/encodings/strict/tags.txt
rename to basis/io/encodings/utf16/tags.txt
diff --git a/core/io/encodings/utf16/utf16-docs.factor b/basis/io/encodings/utf16/utf16-docs.factor
similarity index 96%
rename from core/io/encodings/utf16/utf16-docs.factor
rename to basis/io/encodings/utf16/utf16-docs.factor
index f37a9d1d58..dc499b5ed4 100644
--- a/core/io/encodings/utf16/utf16-docs.factor
+++ b/basis/io/encodings/utf16/utf16-docs.factor
@@ -1,7 +1,7 @@
 USING: help.markup help.syntax io.encodings strings ;
 IN: io.encodings.utf16
 
-ARTICLE: "io.encodings.utf16" "UTF-16"
+ARTICLE: "io.encodings.utf16" "UTF-16 encoding"
 "The UTF-16 encoding is a variable-width encoding. Unicode code points are encoded as 2 or 4 byte sequences. There are three encoding descriptor classes for working with UTF-16, depending on endianness or the presence of a BOM:"
 { $subsection utf16 }
 { $subsection utf16le }
diff --git a/core/io/encodings/utf16/utf16-tests.factor b/basis/io/encodings/utf16/utf16-tests.factor
similarity index 96%
rename from core/io/encodings/utf16/utf16-tests.factor
rename to basis/io/encodings/utf16/utf16-tests.factor
index ac5caba61c..fd251c76db 100755
--- a/core/io/encodings/utf16/utf16-tests.factor
+++ b/basis/io/encodings/utf16/utf16-tests.factor
@@ -1,5 +1,6 @@
 USING: kernel tools.test io.encodings.utf16 arrays sbufs
-io.streams.byte-array sequences io.encodings io unicode
+io.streams.byte-array sequences io.encodings io
+bootstrap.unicode
 io.encodings.string alien.c-types alien.strings accessors classes ;
 IN: io.encodings.utf16.tests
 
diff --git a/core/io/encodings/utf16/utf16.factor b/basis/io/encodings/utf16/utf16.factor
similarity index 95%
rename from core/io/encodings/utf16/utf16.factor
rename to basis/io/encodings/utf16/utf16.factor
index c0aaadc947..037087e452 100755
--- a/core/io/encodings/utf16/utf16.factor
+++ b/basis/io/encodings/utf16/utf16.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006, 2008 Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: math kernel sequences sbufs vectors namespaces io.binary
-io.encodings combinators splitting io byte-arrays inspector ;
+io.encodings combinators splitting io byte-arrays ;
 IN: io.encodings.utf16
 
 SINGLETON: utf16be
@@ -10,6 +10,8 @@ SINGLETON: utf16le
 
 SINGLETON: utf16
 
+ERROR: missing-bom ;
+
 <PRIVATE
 
 ! UTF-16BE decoding
@@ -107,9 +109,6 @@ M: utf16le encode-char ( char stream encoding -- )
 
 : start-utf16be? ( seq1 -- seq2 ? ) bom-be ?head ;
 
-TUPLE: missing-bom ;
-M: missing-bom summary drop "The BOM for a UTF-16 stream was missing" ;
-
 : bom>le/be ( bom -- le/be )
     dup bom-le sequence= [ drop utf16le ] [
         bom-be sequence= [ utf16be ] [ missing-bom ] if
diff --git a/extra/io/windows/ce/files/authors.txt b/basis/io/launcher/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/windows/ce/files/authors.txt
rename to basis/io/launcher/authors.txt
diff --git a/extra/io/launcher/launcher-docs.factor b/basis/io/launcher/launcher-docs.factor
similarity index 100%
rename from extra/io/launcher/launcher-docs.factor
rename to basis/io/launcher/launcher-docs.factor
diff --git a/extra/io/launcher/launcher-tests.factor b/basis/io/launcher/launcher-tests.factor
similarity index 100%
rename from extra/io/launcher/launcher-tests.factor
rename to basis/io/launcher/launcher-tests.factor
diff --git a/extra/io/launcher/launcher.factor b/basis/io/launcher/launcher.factor
similarity index 84%
rename from extra/io/launcher/launcher.factor
rename to basis/io/launcher/launcher.factor
index 131cadfaf0..1b22ca8501 100755
--- a/extra/io/launcher/launcher.factor
+++ b/basis/io/launcher/launcher.factor
@@ -4,7 +4,7 @@ USING: system kernel namespaces strings hashtables sequences
 assocs combinators vocabs.loader init threads continuations
 math accessors concurrency.flags destructors
 io io.backend io.timeouts io.pipes io.pipes.private io.encodings
-io.streams.duplex io.ports ;
+io.streams.duplex io.ports debugger prettyprint summary ;
 IN: io.launcher
 
 TUPLE: process < identity-tuple
@@ -53,7 +53,7 @@ SYMBOL: +realtime-priority+
     dup handle>> swap status>> or ;
 
 : process-running? ( process -- ? )
-    process-handle >boolean ;
+    handle>> >boolean ;
 
 ! Non-blocking process exit notification facility
 SYMBOL: processes
@@ -80,7 +80,7 @@ SYMBOL: wait-flag
     V{ } clone swap processes get set-at
     wait-flag get-global raise-flag ;
 
-M: process hashcode* process-handle hashcode* ;
+M: process hashcode* handle>> hashcode* ;
 
 : pass-environment? ( process -- ? )
     dup environment>> assoc-empty? not
@@ -99,9 +99,14 @@ M: process hashcode* process-handle hashcode* ;
 
 GENERIC: >process ( obj -- process )
 
+ERROR: process-already-started ;
+
+M: process-already-started summary
+    drop "Process has already been started once" ;
+
 M: process >process
     dup process-started? [
-        "Process has already been started once" throw
+        process-already-started
     ] when
     clone ;
 
@@ -111,6 +116,8 @@ HOOK: current-process-handle io-backend ( -- handle )
 
 HOOK: run-process* io-backend ( process -- handle )
 
+ERROR: process-was-killed ;
+
 : wait-for-process ( process -- status )
     [
         dup handle>>
@@ -119,7 +126,7 @@ HOOK: run-process* io-backend ( process -- handle )
             "process" suspend drop
         ] when
         dup killed>>
-        [ "Process was killed" throw ] [ status>> ] if
+        [ process-was-killed ] [ status>> ] if
     ] with-timeout ;
 
 : run-detached ( desc -- process )
@@ -131,11 +138,16 @@ HOOK: run-process* io-backend ( process -- handle )
     run-detached
     dup detached>> [ dup wait-for-process drop ] unless ;
 
-ERROR: process-failed code ;
+ERROR: process-failed process code ;
+
+M: process-failed error.
+    dup "Process exited with error code " write code>> . nl
+    "Launch descriptor:" print nl
+    process>> . ;
 
 : try-process ( desc -- )
-    run-process wait-for-process dup zero?
-    [ drop ] [ process-failed ] if ;
+    run-process dup wait-for-process dup zero?
+    [ 2drop ] [ process-failed ] if ;
 
 HOOK: kill-process* io-backend ( handle -- )
 
@@ -145,7 +157,7 @@ HOOK: kill-process* io-backend ( handle -- )
 
 M: process timeout timeout>> ;
 
-M: process set-timeout set-process-timeout ;
+M: process set-timeout swap >>timeout drop ;
 
 M: process cancel-operation kill-process ;
 
@@ -178,7 +190,7 @@ M: object run-pipeline-element
             [ |dispose drop ]
             [
                 swap >process
-                    [ swap in>> or ] change-stdout
+                    [ swap in>> or ] change-stdin
                 run-detached
             ]
             [ in>> dispose ]
@@ -195,8 +207,8 @@ M: object run-pipeline-element
             [ [ |dispose drop ] bi@ ]
             [
                 rot >process
-                    [ swap out>> or ] change-stdout
                     [ swap in>> or ] change-stdin
+                    [ swap out>> or ] change-stdout
                 run-detached
             ]
             [ [ out>> dispose ] [ in>> dispose ] bi* ]
@@ -217,13 +229,22 @@ GENERIC: underlying-handle ( stream -- handle )
 
 M: port underlying-handle handle>> ;
 
+ERROR: invalid-duplex-stream ;
+
 M: duplex-stream underlying-handle
     [ in>> underlying-handle ]
     [ out>> underlying-handle ] bi
-    [ = [ "Invalid duplex stream" throw ] when ] keep ;
+    [ = [ invalid-duplex-stream ] when ] keep ;
 
 M: encoder underlying-handle
     stream>> underlying-handle ;
 
 M: decoder underlying-handle
     stream>> underlying-handle ;
+
+{
+    { [ os unix? ] [ "io.unix.launcher" require ] }
+    { [ os winnt? ] [ "io.windows.nt.launcher" require ] }
+    { [ os wince? ] [ "io.windows.launcher" require ] }
+    [ ]
+} cond
diff --git a/extra/io/launcher/summary.txt b/basis/io/launcher/summary.txt
similarity index 100%
rename from extra/io/launcher/summary.txt
rename to basis/io/launcher/summary.txt
diff --git a/extra/editors/wordpad/authors.txt b/basis/io/mmap/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/editors/wordpad/authors.txt
rename to basis/io/mmap/authors.txt
diff --git a/extra/io/mmap/mmap-docs.factor b/basis/io/mmap/mmap-docs.factor
similarity index 89%
rename from extra/io/mmap/mmap-docs.factor
rename to basis/io/mmap/mmap-docs.factor
index 4ac85232b8..c774103fca 100755
--- a/extra/io/mmap/mmap-docs.factor
+++ b/basis/io/mmap/mmap-docs.factor
@@ -5,8 +5,8 @@ IN: io.mmap
 HELP: mapped-file
 { $class-description "The class of memory-mapped files, opened by " { $link <mapped-file> } " and closed by " { $link close-mapped-file } ". The following two slots are of interest to users:"
     { $list
-        { { $link mapped-file-length } " - the length of the mapped file area, in bytes" }
-        { { $link mapped-file-address } " - an " { $link alien } " pointing at the file's memory area" }
+        { { $snippet "length" } " - the length of the mapped file area, in bytes" }
+        { { $snippet "address" } " - an " { $link alien } " pointing at the file's memory area" }
     }
 } ;
 
@@ -33,8 +33,7 @@ ARTICLE: "io.mmap" "Memory-mapped files"
 $nl
 "A utility combinator which wraps the above:"
 { $subsection with-mapped-file }
-"Memory mapped files implement the " { $link "sequence-protocol" } " and present themselves as a sequence of bytes. The underlying memory area can also be accessed directly:"
-{ $subsection mapped-file-address }
+"Memory mapped files implement the " { $link "sequence-protocol" } " and present themselves as a sequence of bytes. The underlying memory area can also be accessed directly with the " { $snippet "address" } " slot." $nl
 "Data can be read and written from the memory area using alien words. See " { $link "reading-writing-memory" } "." ;
 
 ABOUT: "io.mmap"
diff --git a/extra/io/mmap/mmap-tests.factor b/basis/io/mmap/mmap-tests.factor
similarity index 100%
rename from extra/io/mmap/mmap-tests.factor
rename to basis/io/mmap/mmap-tests.factor
diff --git a/extra/io/mmap/mmap.factor b/basis/io/mmap/mmap.factor
similarity index 85%
rename from extra/io/mmap/mmap.factor
rename to basis/io/mmap/mmap.factor
index dde5210995..01e7054ef1 100755
--- a/extra/io/mmap/mmap.factor
+++ b/basis/io/mmap/mmap.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: continuations destructors io.backend kernel quotations
 sequences system alien alien.accessors accessors
-sequences.private ;
+sequences.private system vocabs.loader combinators ;
 IN: io.mmap
 
 TUPLE: mapped-file address handle length disposed ;
@@ -29,3 +29,8 @@ M: mapped-file dispose* ( mmap -- ) close-mapped-file ;
 
 : with-mapped-file ( path length quot -- )
     >r <mapped-file> r> with-disposal ; inline
+
+{
+    { [ os unix? ] [ "io.unix.mmap" require ] }
+    { [ os winnt? ] [ "io.windows.mmap" require ] }
+} cond
diff --git a/extra/io/mmap/summary.txt b/basis/io/mmap/summary.txt
similarity index 100%
rename from extra/io/mmap/summary.txt
rename to basis/io/mmap/summary.txt
diff --git a/extra/cocoa/views/authors.txt b/basis/io/monitors/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/cocoa/views/authors.txt
rename to basis/io/monitors/authors.txt
diff --git a/extra/io/monitors/monitors-docs.factor b/basis/io/monitors/monitors-docs.factor
similarity index 86%
rename from extra/io/monitors/monitors-docs.factor
rename to basis/io/monitors/monitors-docs.factor
index b81bd1d303..ce59e23b45 100755
--- a/extra/io/monitors/monitors-docs.factor
+++ b/basis/io/monitors/monitors-docs.factor
@@ -55,23 +55,31 @@ ARTICLE: "io.monitors.descriptors" "File system change descriptors"
 { $subsection +rename-file+ } ;
 
 ARTICLE: "io.monitors.platforms" "Monitors on different platforms"
-"Whether the " { $snippet "path" } " output value of " { $link next-change } " contains an absolute path or a path relative to the path given to " { $link <monitor> } " is platform-specific. User code should not assume either case."
+"Whether the " { $snippet "path" } " output value of " { $link next-change } " contains an absolute path or a path relative to the path given to " { $link <monitor> } " is unspecified, and may even vary on the same platform. User code should not assume either case."
+$nl
+"If the immediate path being monitored was changed, then " { $snippet "path" } " will equal " { $snippet "\"\"" } "; however this condition is not reported on all platforms. See below."
 { $heading "Mac OS X" }
 "Factor uses " { $snippet "FSEventStream" } "s to implement monitors on Mac OS X. This requires Mac OS X 10.5 or later."
 $nl
 { $snippet "FSEventStream" } "s always monitor directory hierarchies recursively, and the " { $snippet "recursive?" } " parameter to " { $link <monitor> } " has no effect."
 $nl
 "The " { $snippet "changed" } " output value of the " { $link next-change } " word always outputs " { $link +modify-file+ } " and the " { $snippet "path" } " output value is always the directory containing the file that changed. Unlike other platforms, fine-grained information is not available."
+$nl
+"Only directories may be monitored, not individual files. Changes to the directory itself (permissions, modification time, and so on) are not reported; only changes to children are reported."
 { $heading "Windows" }
 "Factor uses " { $snippet "ReadDirectoryChanges" } " to implement monitors on Windows."
 $nl
 "Both recursive and non-recursive monitors are directly supported by the operating system."
+$nl
+"Only directories may be monitored, not individual files. Changes to the directory itself (permissions, modification time, and so on) are not reported; only changes to children are reported."
 { $heading "Linux" }
 "Factor uses " { $snippet "inotify" } " to implement monitors on Linux. This requires Linux kernel version 2.6.16 or later."
 $nl
 "Factor simulates recursive monitors by creating a hierarchy of monitors for every subdirectory, since " { $snippet "inotify" } " can only monitor a single directory. This is transparent to user code."
 $nl
 "Inside a single " { $link with-monitors } " scope, only one monitor may be created for any given directory."
+$nl
+"Both directories and files may be monitored. Unlike Mac OS X and Windows, changes to the immediate directory being monitored (permissions, modification time, and so on) are reported."
 { $heading "BSD" }
 "Factor uses " { $snippet "kqueue" } " to implement monitors on BSD."
 $nl
diff --git a/extra/io/monitors/monitors-tests.factor b/basis/io/monitors/monitors-tests.factor
similarity index 95%
rename from extra/io/monitors/monitors-tests.factor
rename to basis/io/monitors/monitors-tests.factor
index bd33954436..1cc97753b7 100755
--- a/extra/io/monitors/monitors-tests.factor
+++ b/basis/io/monitors/monitors-tests.factor
@@ -54,8 +54,8 @@ os { winnt linux macosx } member? [
                     "m" get next-change drop
                     dup print flush
                     dup parent-directory
-                    [ right-trim-separators "xyz" tail? ] either? not
-                ] [ ] [ ] while
+                    [ trim-right-separators "xyz" tail? ] either? not
+                ] loop
 
                 "c1" get count-down
                 
@@ -63,8 +63,8 @@ os { winnt linux macosx } member? [
                     "m" get next-change drop
                     dup print flush
                     dup parent-directory
-                    [ right-trim-separators "yxy" tail? ] either? not
-                ] [ ] [ ] while
+                    [ trim-right-separators "yxy" tail? ] either? not
+                ] loop
 
                 "c2" get count-down
             ] "Monitor test thread" spawn drop
diff --git a/extra/io/monitors/monitors.factor b/basis/io/monitors/monitors.factor
similarity index 82%
rename from extra/io/monitors/monitors.factor
rename to basis/io/monitors/monitors.factor
index 65c1eb7e82..7f33f0caa6 100755
--- a/extra/io/monitors/monitors.factor
+++ b/basis/io/monitors/monitors.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: io.backend kernel continuations destructors namespaces
 sequences assocs hashtables sorting arrays threads boxes
-io.timeouts accessors concurrency.mailboxes ;
+io.timeouts accessors concurrency.mailboxes
+system vocabs.loader combinators ;
 IN: io.monitors
 
 HOOK: init-monitors io-backend ( -- )
@@ -53,3 +54,10 @@ SYMBOL: +rename-file+
 
 : with-monitor ( path recursive? quot -- )
     >r <monitor> r> with-disposal ; inline
+
+{
+    { [ os macosx? ] [ "io.unix.macosx.monitors" require ] }
+    { [ os linux? ] [ "io.unix.linux.monitors" require ] }
+    { [ os winnt? ] [ "io.windows.nt.monitors" require ] }
+    [ ]
+} cond
diff --git a/extra/io/monitors/recursive/recursive-tests.factor b/basis/io/monitors/recursive/recursive-tests.factor
similarity index 100%
rename from extra/io/monitors/recursive/recursive-tests.factor
rename to basis/io/monitors/recursive/recursive-tests.factor
diff --git a/extra/io/monitors/recursive/recursive.factor b/basis/io/monitors/recursive/recursive.factor
similarity index 100%
rename from extra/io/monitors/recursive/recursive.factor
rename to basis/io/monitors/recursive/recursive.factor
diff --git a/extra/io/monitors/summary.txt b/basis/io/monitors/summary.txt
similarity index 100%
rename from extra/io/monitors/summary.txt
rename to basis/io/monitors/summary.txt
diff --git a/extra/io/pipes/pipes-docs.factor b/basis/io/pipes/pipes-docs.factor
similarity index 100%
rename from extra/io/pipes/pipes-docs.factor
rename to basis/io/pipes/pipes-docs.factor
diff --git a/extra/io/pipes/pipes-tests.factor b/basis/io/pipes/pipes-tests.factor
similarity index 100%
rename from extra/io/pipes/pipes-tests.factor
rename to basis/io/pipes/pipes-tests.factor
diff --git a/extra/io/pipes/pipes.factor b/basis/io/pipes/pipes.factor
similarity index 72%
rename from extra/io/pipes/pipes.factor
rename to basis/io/pipes/pipes.factor
index f98fa4b0d4..ca4046fe07 100644
--- a/extra/io/pipes/pipes.factor
+++ b/basis/io/pipes/pipes.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: io.encodings io.backend io.ports io.streams.duplex
-io splitting sequences sequences.lib namespaces kernel
+io splitting grouping sequences namespaces kernel
 destructors math concurrency.combinators accessors
-arrays continuations quotations ;
+arrays continuations quotations system vocabs.loader combinators ;
 IN: io.pipes
 
 TUPLE: pipe in out ;
@@ -22,8 +22,11 @@ HOOK: (pipe) io-backend ( -- pipe )
 
 <PRIVATE
 
-: ?reader [ <input-port> &dispose ] [ input-stream get ] if* ;
-: ?writer [ <output-port> &dispose ] [ output-stream get ] if* ;
+: ?reader ( handle/f -- stream )
+    [ <input-port> &dispose ] [ input-stream get ] if* ;
+
+: ?writer ( handle/f -- stream )
+    [ <output-port> &dispose ] [ output-stream get ] if* ;
 
 GENERIC: run-pipeline-element ( input-fd output-fd obj -- quot )
 
@@ -48,3 +51,9 @@ PRIVATE>
         >r [ first in>> ] [ second out>> ] bi
         r> run-pipeline-element
     ] 2parallel-map ;
+
+{
+    { [ os unix? ] [ "io.unix.pipes" require ] }
+    { [ os winnt? ] [ "io.windows.nt.pipes" require ] }
+    [ ]
+} cond
diff --git a/extra/cocoa/windows/authors.txt b/basis/io/pools/authors.txt
similarity index 100%
rename from extra/cocoa/windows/authors.txt
rename to basis/io/pools/authors.txt
diff --git a/extra/io/pools/pools-docs.factor b/basis/io/pools/pools-docs.factor
similarity index 100%
rename from extra/io/pools/pools-docs.factor
rename to basis/io/pools/pools-docs.factor
diff --git a/extra/io/pools/pools.factor b/basis/io/pools/pools.factor
similarity index 94%
rename from extra/io/pools/pools.factor
rename to basis/io/pools/pools.factor
index 033ba3cbfb..aa734e6809 100644
--- a/extra/io/pools/pools.factor
+++ b/basis/io/pools/pools.factor
@@ -9,8 +9,8 @@ TUPLE: pool connections disposed expired ;
 : check-pool ( pool -- )
     dup check-disposed
     dup expired>> expired? [
-        ALIEN: 31337 >>expired
-        connections>> [ delete-all ] [ dispose-each ] bi
+        31337 <alien> >>expired
+        connections>> delete-all
     ] [ drop ] if ;
 
 : <pool> ( class -- pool )
@@ -34,6 +34,7 @@ GENERIC: make-connection ( pool -- conn )
     dup check-pool [ make-connection ] keep return-connection ;
 
 : acquire-connection ( pool -- conn )
+    dup check-pool
     [ dup connections>> empty? ] [ dup new-connection ] [ ] while
     connections>> pop ;
 
diff --git a/extra/io/pools/summary.txt b/basis/io/pools/summary.txt
similarity index 100%
rename from extra/io/pools/summary.txt
rename to basis/io/pools/summary.txt
diff --git a/extra/io/pools/tags.txt b/basis/io/pools/tags.txt
similarity index 100%
rename from extra/io/pools/tags.txt
rename to basis/io/pools/tags.txt
diff --git a/extra/colors/authors.txt b/basis/io/ports/authors.txt
similarity index 100%
rename from extra/colors/authors.txt
rename to basis/io/ports/authors.txt
diff --git a/extra/io/ports/ports-docs.factor b/basis/io/ports/ports-docs.factor
similarity index 90%
rename from extra/io/ports/ports-docs.factor
rename to basis/io/ports/ports-docs.factor
index 7420cac115..47485193cf 100755
--- a/extra/io/ports/ports-docs.factor
+++ b/basis/io/ports/ports-docs.factor
@@ -64,7 +64,3 @@ HELP: (wait-to-read)
 HELP: wait-to-read
 { $values { "port" input-port } { "eof?" "a boolean" } }
 { $description "If the port's buffer has unread data, returns immediately, otherwise suspends the current thread until some data is available for reading. If the buffer was empty and no more data could be read, outputs " { $link t } " to indicate end-of-file; otherwise outputs " { $link f } "." } ;
-
-HELP: can-write?
-{ $values { "len" "a positive integer" } { "buffer" buffer } { "?" "a boolean" } }
-{ $description "Tests if the port's output buffer can accomodate " { $snippet "len" } " bytes. If the buffer is empty, this always outputs " { $link t } ", since in that case the buffer will be grown automatically." } ;
diff --git a/extra/io/ports/ports.factor b/basis/io/ports/ports.factor
similarity index 65%
rename from extra/io/ports/ports.factor
rename to basis/io/ports/ports.factor
index 549362ad0c..909b2dcf3b 100755
--- a/extra/io/ports/ports.factor
+++ b/basis/io/ports/ports.factor
@@ -3,8 +3,8 @@
 USING: math kernel io sequences io.buffers io.timeouts generic
 byte-vectors system io.encodings math.order io.backend
 continuations debugger classes byte-arrays namespaces splitting
-dlists assocs io.encodings.binary inspector accessors
-destructors ;
+grouping dlists assocs io.encodings.binary summary accessors
+destructors combinators ;
 IN: io.ports
 
 SYMBOL: default-buffer-size
@@ -19,7 +19,7 @@ M: port set-timeout (>>timeout) ;
 : <port> ( handle class -- port )
     new swap >>handle ; inline
 
-TUPLE: buffered-port < port buffer ;
+TUPLE: buffered-port < port { buffer buffer } ;
 
 : <buffered-port> ( handle class -- port )
     <port>
@@ -35,7 +35,7 @@ HOOK: (wait-to-read) io-backend ( port -- )
 : wait-to-read ( port -- eof? )
     dup buffer>> buffer-empty? [
         dup (wait-to-read) buffer>> buffer-empty?
-    ] [ drop f ] if ;
+    ] [ drop f ] if ; inline
 
 M: input-port stream-read1
     dup check-disposed
@@ -71,16 +71,36 @@ M: input-port stream-read
         ] [ 2nip ] if
     ] [ 2nip ] if ;
 
+: read-until-step ( separators port -- string/f separator/f )
+    dup wait-to-read [ 2drop f f ] [ buffer>> buffer-until ] if ;
+
+: read-until-loop ( seps port buf -- separator/f )
+    2over read-until-step over [
+        >r over push-all r> dup [
+            >r 3drop r>
+        ] [
+            drop read-until-loop
+        ] if
+    ] [
+        >r 2drop 2drop r>
+    ] if ;
+
+M: input-port stream-read-until ( seps port -- str/f sep/f )
+    2dup read-until-step dup [ >r 2nip r> ] [
+        over [
+            drop
+            BV{ } like [ read-until-loop ] keep B{ } like swap
+        ] [ >r 2nip r> ] if
+    ] if ;
+
 TUPLE: output-port < buffered-port ;
 
 : <output-port> ( handle -- output-port )
     output-port <buffered-port> ;
 
-: can-write? ( len buffer -- ? )
-    [ buffer-fill + ] keep buffer-capacity <= ;
-
 : wait-to-write ( len port -- )
-    tuck buffer>> can-write? [ drop ] [ stream-flush ] if ;
+    tuck buffer>> buffer-capacity <=
+    [ drop ] [ stream-flush ] if ;
 
 M: output-port stream-write1
     dup check-disposed
@@ -89,8 +109,8 @@ M: output-port stream-write1
 
 M: output-port stream-write
     dup check-disposed
-    over length over buffer>> buffer-size > [
-        [ buffer>> buffer-size <groups> ]
+    over length over buffer>> size>> > [
+        [ buffer>> size>> <groups> ]
         [ [ stream-write ] curry ] bi
         each
     ] [
@@ -113,16 +133,16 @@ M: output-port stream-flush ( port -- )
 
 M: output-port dispose*
     [
-        [ handle>> &dispose drop ]
-        [ port-flush ]
-        [ handle>> shutdown ]
-        tri
+        {
+            [ handle>> &dispose drop ]
+            [ buffer>> &dispose drop ]
+            [ port-flush ]
+            [ handle>> shutdown ]
+        } cleave
     ] with-destructors ;
 
 M: buffered-port dispose*
-    [ call-next-method ]
-    [ [ [ buffer-free ] when* f ] change-buffer drop ]
-    bi ;
+    [ call-next-method ] [ buffer>> dispose ] bi ;
 
 M: port cancel-operation handle>> cancel-operation ;
 
@@ -132,3 +152,13 @@ M: port dispose*
         [ handle>> shutdown ]
         bi
     ] with-destructors ;
+
+! Fast-path optimization
+USING: hints strings io.encodings.utf8 io.encodings.ascii
+io.encodings.private ;
+
+HINTS: decoder-read-until { string input-port utf8 } { string input-port ascii } ;
+
+HINTS: decoder-readln { input-port utf8 } { input-port ascii } ;
+
+HINTS: decoder-write { string output-port utf8 } { string output-port ascii } ;
diff --git a/extra/io/ports/summary.txt b/basis/io/ports/summary.txt
similarity index 100%
rename from extra/io/ports/summary.txt
rename to basis/io/ports/summary.txt
diff --git a/extra/colors/hsv/authors.txt b/basis/io/servers/connection/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/colors/hsv/authors.txt
rename to basis/io/servers/connection/authors.txt
diff --git a/basis/io/servers/connection/connection-docs.factor b/basis/io/servers/connection/connection-docs.factor
new file mode 100755
index 0000000000..839f3d8414
--- /dev/null
+++ b/basis/io/servers/connection/connection-docs.factor
@@ -0,0 +1,112 @@
+IN: io.servers.connection
+USING: help help.syntax help.markup io io.sockets
+io.sockets.secure concurrency.semaphores calendar classes math ;
+
+ARTICLE: "server-config" "Threaded server configuration"
+"The " { $link threaded-server } " tuple has a variety of slots which can be set before starting the server with " { $link start-server } " or " { $link start-server* } "."
+{ $subsection "server-config-logging" }
+{ $subsection "server-config-listen" }
+{ $subsection "server-config-limit" }
+{ $subsection "server-config-stream" }
+{ $subsection "server-config-handler" } ;
+
+ARTICLE: "server-config-logging" "Logging connections"
+"The " { $snippet "name" } " slot of a threaded server instance should be set to a string naming the logging service name to use. See " { $link "logging" } " for details." ;
+
+ARTICLE: "server-config-listen" "Setting ports to listen on"
+"The " { $snippet "insecure" } " slot of a threaded server instance contains an integer, an address specifier, or a sequence of address specifiers. Integer port numbers are interpreted as an " { $link inet4 } "/" { $link inet6 } " pair listening on all interfaces for given port number. All other address specifiers are interpeted as per " { $link "network-addressing" } "."
+$nl
+"The " { $snippet "secure" } " slot of a threaded server instance is interpreted in the same manner as the " { $snippet "insecure" } " slot, except that secure encrypted connections are then allowed. If this slot is set, the " { $snippet "secure-config" } " slot should also be set to a " { $link secure-config } " instance containing SSL server configuration. See " { $link "ssl-config" } " for details."
+$nl
+"Two utility words for producing address specifiers:"
+{ $subsection local-server }
+{ $subsection internet-server } ;
+
+ARTICLE: "server-config-limit" "Limiting connections"
+"The " { $snippet "max-connections" } " slot is initially set to " { $link f } ", which disables connection limiting, but can be set to an integer specifying the maximum number of simultaneous connections."
+$nl
+"Another method to limit connections is to set the " { $snippet "semaphore" } " slot to a " { $link semaphore } ". The server will hold the semaphore while servicing the client connection."
+$nl
+"Setting the " { $snippet "max-connections" } " slot is equivalent to storing a semaphore with this initial count in the " { $snippet "semaphore" } " slot. The " { $snippet "semaphore" } " slot is useful for enforcing a maximum connection count shared between multiple threaded servers. See " { $link "concurrency.semaphores" } " for details." ;
+
+ARTICLE: "server-config-stream" "Client stream parameters"
+"The " { $snippet "encoding" } " and " { $snippet "timeout" } " slots of the threaded server can be set to an encoding descriptor or a " { $link duration } ", respectively. See " { $link "io.encodings" } " and " { $link "io.timeouts" } " for details." ;
+
+ARTICLE: "server-config-handler" "Client handler quotation"
+"The " { $snippet "handler" } " slot of a threaded server instance should be set to a quotation which handles client connections. Client handlers are run in their own thread, with the following variables rebound:"
+{ $list
+    { $link input-stream }
+    { $link output-stream }
+    { $link local-address }
+    { $link remote-address }
+    { $link threaded-server }
+}
+"An alternate way to implement client handlers is to subclass " { $link threaded-server } ", and define a method on " { $link handle-client* } "."
+$nl
+"The two methods are equivalent, representing a functional versus an object-oriented approach to the problem." ;
+
+ARTICLE: "io.servers.connection" "Threaded servers"
+"The " { $vocab-link "io.servers.connection" } " vocabulary implements a generic server abstraction for " { $link "network-connection" } ". A set of threads listen for connections, and additional threads are spawned for each client connection. In addition to this basic functionality, it provides some advanced features such as logging, connection limits and secure socket support."
+{ $subsection threaded-server }
+{ $subsection "server-config" }
+"Creating threaded servers with client handler quotations:"
+{ $subsection <threaded-server> }
+"Client handlers can also be implemented by subclassing a threaded server; see " { $link "server-config-handler" } " for details:"
+{ $subsection new-threaded-server }
+{ $subsection handle-client* }
+"Starting the server:"
+{ $subsection start-server }
+{ $subsection start-server* }
+{ $subsection wait-for-server }
+"From within the dynamic scope of a client handler, several words can be used to interact with the threaded server:"
+{ $subsection remote-address }
+{ $subsection stop-server }
+{ $subsection secure-port }
+{ $subsection insecure-port }
+"Additionally, the " { $link local-address } " variable is set, as in " { $link with-client } "." ;
+
+ABOUT: "io.servers.connection"
+
+HELP: threaded-server
+{ $var-description "In client handlers, stores the current threaded server instance." }
+{ $class-description "The class of threaded servers. New instances are created with " { $link <threaded-server> } ". This class may be subclassed, and instances of subclasses should be created with " { $link new-threaded-server } ". See " { $link "server-config" } " for slot documentation." } ;
+
+HELP: new-threaded-server
+{ $values { "class" class } { "threaded-server" threaded-server } }
+{ $description "Creates a new instance of a subclass of " { $link threaded-server } ". Subclasses can implement the " { $link handle-client* } " generic word." } ;
+
+HELP: <threaded-server>
+{ $values { "threaded-server" threaded-server } }
+{ $description "Creates a new threaded server. Its slots should be filled in as per " { $link "server-config" } ", before " { $link start-server } " is called to begin waiting for connections." } ;
+
+HELP: remote-address
+{ $var-description "Variable holding the address specifier of the current client connection. See " { $link "network-addressing" } "." } ;
+
+HELP: handle-client*
+{ $values { "threaded-server" threaded-server } }
+{ $contract "Handles a client connection. Default implementation calls quotation stored in the " { $snippet "handler" } " slot of the threaded server." } ;
+
+HELP: start-server
+{ $values { "threaded-server" threaded-server } }
+{ $description "Starts a threaded server, returning when a client handler calls " { $link stop-server } "." } ;
+
+HELP: wait-for-server
+{ $values { "threaded-server" threaded-server } }
+{ $description "Waits for a threaded server to begin accepting connections." } ;
+
+HELP: start-server*
+{ $values { "threaded-server" threaded-server } }
+{ $description "Starts a threaded server, returning as soon as it is accepting connections." } ;
+
+HELP: stop-server
+{ $description "Stops the current threaded server, preventing it from accepting any more connections and returning to the caller of " { $link start-server } ". All client connections which have already been opened continue to be serviced." } ;
+
+HELP: secure-port
+{ $values { "n" "an " { $link integer } " or " { $link f } } }
+{ $description "Outputs the port number on which the current threaded server accepts secure socket connections. Outputs " { $link f } " if the current threaded server does not accept secure socket connections." }
+{ $notes "Can only be used from the dynamic scope of a " { $link handle-client* } " call." } ;
+
+HELP: insecure-port
+{ $values { "n" "an " { $link integer } " or " { $link f } } }
+{ $description "Outputs the port number on which the current threaded server accepts ordinary socket connections. Outputs " { $link f } " if the current threaded server does not accept ordinary socket connections." }
+{ $notes "Can only be used from the dynamic scope of a " { $link handle-client* } " call." } ;
diff --git a/basis/io/servers/connection/connection-tests.factor b/basis/io/servers/connection/connection-tests.factor
new file mode 100755
index 0000000000..aa8df0b16c
--- /dev/null
+++ b/basis/io/servers/connection/connection-tests.factor
@@ -0,0 +1,51 @@
+IN: io.servers.connection
+USING: tools.test io.servers.connection io.sockets namespaces
+io.servers.connection.private kernel accessors sequences
+concurrency.promises io.encodings.ascii io threads calendar ;
+
+[ t ] [ <threaded-server> listen-on empty? ] unit-test
+
+[ f ] [
+    <threaded-server>
+        25 internet-server >>insecure
+    listen-on
+    empty?
+] unit-test
+
+[ t ] [
+    T{ inet4 f "1.2.3.4" 1234 } T{ inet4 f "1.2.3.5" 1235 }
+    [ log-connection ] 2keep
+    [ remote-address get = ] [ local-address get = ] bi*
+    and
+] unit-test
+
+[ ] [ <threaded-server> init-server drop ] unit-test
+
+[ 10 ] [
+    <threaded-server>
+        10 >>max-connections
+    init-server semaphore>> count>> 
+] unit-test
+
+[ ] [ <promise> "p" set ] unit-test
+
+[ ] [
+    <threaded-server>
+        5 >>max-connections
+        1237 >>insecure
+        [ "Hello world." write stop-server ] >>handler
+    "server" set
+] unit-test
+
+[ ] [
+    [
+        "server" get start-server
+        t "p" get fulfill
+    ] in-thread
+] unit-test
+
+[ ] [ "server" get wait-for-server ] unit-test
+
+[ "Hello world." ] [ "localhost" 1237 <inet> ascii <client> drop contents ] unit-test
+
+[ t ] [ "p" get 2 seconds ?promise-timeout ] unit-test
diff --git a/basis/io/servers/connection/connection.factor b/basis/io/servers/connection/connection.factor
new file mode 100755
index 0000000000..f789f7b114
--- /dev/null
+++ b/basis/io/servers/connection/connection.factor
@@ -0,0 +1,144 @@
+! Copyright (C) 2003, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: continuations destructors kernel math math.parser
+namespaces parser sequences strings prettyprint debugger
+quotations combinators logging calendar assocs
+fry accessors arrays io io.sockets io.encodings.ascii
+io.sockets.secure io.files io.streams.duplex io.timeouts
+io.encodings threads concurrency.combinators
+concurrency.semaphores concurrency.flags
+combinators.short-circuit ;
+IN: io.servers.connection
+
+TUPLE: threaded-server
+name
+secure insecure
+secure-config
+sockets
+max-connections
+semaphore
+timeout
+encoding
+handler
+ready ;
+
+: local-server ( port -- addrspec ) "localhost" swap <inet> ;
+
+: internet-server ( port -- addrspec ) f swap <inet> ;
+
+: new-threaded-server ( class -- threaded-server )
+    new
+        "server" >>name
+        ascii >>encoding
+        1 minutes >>timeout
+        V{ } clone >>sockets
+        <secure-config> >>secure-config
+        [ "No handler quotation" throw ] >>handler
+        <flag> >>ready ; inline
+
+: <threaded-server> ( -- threaded-server )
+    threaded-server new-threaded-server ;
+
+SYMBOL: remote-address
+
+GENERIC: handle-client* ( threaded-server -- )
+
+<PRIVATE
+
+: >insecure ( addrspec -- addrspec' )
+    dup { [ integer? ] [ string? ] } 1|| [ internet-server ] when ;
+
+: >secure ( addrspec -- addrspec' )
+    >insecure
+    dup { [ secure? ] [ not ] } 1|| [ <secure> ] unless ;
+
+: listen-on ( threaded-server -- addrspecs )
+    [ secure>> >secure ] [ insecure>> >insecure ] bi
+    [ resolve-host ] bi@ append ;
+
+LOG: accepted-connection NOTICE
+
+: log-connection ( remote local -- )
+    [ [ remote-address set ] [ local-address set ] bi* ]
+    [ 2array accepted-connection ]
+    2bi ;
+
+M: threaded-server handle-client* handler>> call ;
+
+: handle-client ( client remote local -- )
+    '[
+        , , log-connection
+        threaded-server get
+        [ timeout>> timeouts ] [ handle-client* ] bi
+    ] with-stream ;
+
+: thread-name ( server-name addrspec -- string )
+    unparse-short " connection from " swap 3append ;
+
+: accept-connection ( threaded-server -- )
+    [ accept ] [ addr>> ] bi
+    [ '[ , , , handle-client ] ]
+    [ drop threaded-server get name>> swap thread-name ] 2bi
+    spawn drop ;
+
+: accept-loop ( threaded-server -- )
+    [
+        threaded-server get semaphore>>
+        [ [ accept-connection ] with-semaphore ]
+        [ accept-connection ]
+        if*
+    ] [ accept-loop ] bi ; inline recursive
+
+: started-accept-loop ( threaded-server -- )
+    threaded-server get
+    [ sockets>> push ] [ ready>> raise-flag ] bi ;
+
+: start-accept-loop ( addrspec -- )
+    threaded-server get encoding>> <server>
+    [ started-accept-loop ] [ [ accept-loop ] with-disposal ] bi ;
+
+\ start-accept-loop ERROR add-error-logging
+
+: init-server ( threaded-server -- threaded-server )
+    dup semaphore>> [
+        dup max-connections>> [
+            <semaphore> >>semaphore
+        ] when*
+    ] unless ;
+
+PRIVATE>
+
+: start-server ( threaded-server -- )
+    init-server
+    dup secure-config>> [
+        dup threaded-server [
+            dup name>> [
+                listen-on [
+                    start-accept-loop
+                ] parallel-each
+            ] with-logging
+        ] with-variable
+    ] with-secure-context ;
+
+: wait-for-server ( threaded-server -- )
+    ready>> wait-for-flag ;
+
+: start-server* ( threaded-server -- )
+    [ [ start-server ] curry "Threaded server" spawn drop ]
+    [ wait-for-server ]
+    bi ;
+
+: stop-server ( -- )
+    threaded-server get [ f ] change-sockets drop dispose-each ;
+
+GENERIC: port ( addrspec -- n )
+
+M: integer port ;
+
+M: object port port>> ;
+
+: secure-port ( -- n )
+    threaded-server get dup [ secure>> port ] when ;
+
+: insecure-port ( -- n )
+    threaded-server get dup [ insecure>> port ] when ;
diff --git a/basis/io/servers/connection/summary.txt b/basis/io/servers/connection/summary.txt
new file mode 100644
index 0000000000..8269ecfc38
--- /dev/null
+++ b/basis/io/servers/connection/summary.txt
@@ -0,0 +1 @@
+Multi-threaded TCP/IP servers
diff --git a/extra/io/server/tags.txt b/basis/io/servers/connection/tags.txt
similarity index 100%
rename from extra/io/server/tags.txt
rename to basis/io/servers/connection/tags.txt
diff --git a/extra/concurrency/exchangers/authors.txt b/basis/io/servers/packet/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/concurrency/exchangers/authors.txt
rename to basis/io/servers/packet/authors.txt
diff --git a/basis/io/servers/packet/datagram.factor b/basis/io/servers/packet/datagram.factor
new file mode 100644
index 0000000000..03596ee43c
--- /dev/null
+++ b/basis/io/servers/packet/datagram.factor
@@ -0,0 +1,21 @@
+IN: io.servers.datagram
+
+<PRIVATE
+
+LOG: received-datagram NOTICE
+
+: datagram-loop ( quot datagram -- )
+    [
+        [ receive dup received-datagram [ swap call ] dip ] keep
+        pick [ send ] [ 3drop ] if
+    ] 2keep datagram-loop ; inline
+
+: spawn-datagrams ( quot addrspec -- )
+    <datagram> [ datagram-loop ] with-disposal ; inline
+
+\ spawn-datagrams NOTICE add-input-logging
+
+PRIVATE>
+
+: with-datagrams ( seq service quot -- )
+    '[ [ , _ spawn-datagrams ] parallel-each ] with-logging ; inline
diff --git a/basis/io/servers/packet/summary.txt b/basis/io/servers/packet/summary.txt
new file mode 100644
index 0000000000..29247a2937
--- /dev/null
+++ b/basis/io/servers/packet/summary.txt
@@ -0,0 +1 @@
+Multi-threaded UDP/IP servers
diff --git a/extra/io/sockets/secure/tags.txt b/basis/io/servers/packet/tags.txt
similarity index 100%
rename from extra/io/sockets/secure/tags.txt
rename to basis/io/servers/packet/tags.txt
diff --git a/extra/io/sockets/authors.txt b/basis/io/sockets/authors.txt
similarity index 100%
rename from extra/io/sockets/authors.txt
rename to basis/io/sockets/authors.txt
diff --git a/extra/concurrency/locks/authors.txt b/basis/io/sockets/secure/authors.txt
similarity index 100%
rename from extra/concurrency/locks/authors.txt
rename to basis/io/sockets/secure/authors.txt
diff --git a/extra/io/sockets/secure/secure-docs.factor b/basis/io/sockets/secure/secure-docs.factor
similarity index 100%
rename from extra/io/sockets/secure/secure-docs.factor
rename to basis/io/sockets/secure/secure-docs.factor
diff --git a/basis/io/sockets/secure/secure-tests.factor b/basis/io/sockets/secure/secure-tests.factor
new file mode 100755
index 0000000000..557bba52d2
--- /dev/null
+++ b/basis/io/sockets/secure/secure-tests.factor
@@ -0,0 +1,12 @@
+IN: io.sockets.secure.tests
+USING: accessors kernel io.sockets io.sockets.secure tools.test ;
+
+[ "hello" 24 ] [ "hello" 24 <inet> <secure> [ host>> ] [ port>> ] bi ] unit-test
+
+[ ] [
+    <secure-config>
+        "resource:basis/openssl/test/server.pem" >>key-file
+        "resource:basis/openssl/test/dh1024.pem" >>dh-file
+        "password" >>password
+    [ ] with-secure-context
+] unit-test
diff --git a/extra/io/sockets/secure/secure.factor b/basis/io/sockets/secure/secure.factor
old mode 100644
new mode 100755
similarity index 74%
rename from extra/io/sockets/secure/secure.factor
rename to basis/io/sockets/secure/secure.factor
index 448a5cdda0..3e516dff8b
--- a/extra/io/sockets/secure/secure.factor
+++ b/basis/io/sockets/secure/secure.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors kernel symbols namespaces continuations
-destructors io.sockets sequences inspector calendar ;
+destructors io.sockets sequences summary calendar delegate
+system vocabs.loader combinators ;
 IN: io.sockets.secure
 
 SYMBOL: secure-socket-timeout
@@ -25,7 +26,7 @@ ephemeral-key-bits ;
     secure-config new
         SSLv23 >>method
         1024 >>ephemeral-key-bits
-        "resource:extra/openssl/cacert.pem" >>ca-file
+        "resource:basis/openssl/cacert.pem" >>ca-file
         t >>verify ;
 
 TUPLE: secure-context config handle disposed ;
@@ -42,8 +43,10 @@ TUPLE: secure addrspec ;
 
 C: <secure> secure
 
-: resolve-secure-host ( host port passive? -- seq )
-    resolve-host [ <secure> ] map ;
+CONSULT: inet secure addrspec>> ;
+
+M: secure resolve-host ( secure -- seq )
+    addrspec>> resolve-host [ <secure> ] map ;
 
 HOOK: check-certificate secure-socket-backend ( host handle -- )
 
@@ -53,9 +56,8 @@ PREDICATE: secure-inet < secure addrspec>> inet? ;
 
 M: secure-inet (client)
     [
-        addrspec>>
-        [ [ host>> ] [ port>> ] bi f resolve-secure-host (client) >r |dispose r> ] keep
-        host>> pick handle>> check-certificate
+        [ resolve-host (client) [ |dispose ] dip ] keep
+        addrspec>> host>> pick handle>> check-certificate
     ] with-destructors ;
 
 PRIVATE>
@@ -74,3 +76,8 @@ ERROR: common-name-verify-error expected got ;
 
 M: common-name-verify-error summary
     drop "Common name verification failed" ;
+
+{
+    { [ os unix? ] [ "io.unix.sockets.secure" require ] }
+    { [ os windows? ] [ "openssl" require ] }
+} cond
diff --git a/extra/io/sockets/secure/summary.txt b/basis/io/sockets/secure/summary.txt
similarity index 100%
rename from extra/io/sockets/secure/summary.txt
rename to basis/io/sockets/secure/summary.txt
diff --git a/extra/io/sockets/tags.txt b/basis/io/sockets/secure/tags.txt
similarity index 100%
rename from extra/io/sockets/tags.txt
rename to basis/io/sockets/secure/tags.txt
diff --git a/extra/io/sockets/sockets-docs.factor b/basis/io/sockets/sockets-docs.factor
similarity index 87%
rename from extra/io/sockets/sockets-docs.factor
rename to basis/io/sockets/sockets-docs.factor
index 78cddd5d3b..3c77be254c 100755
--- a/extra/io/sockets/sockets-docs.factor
+++ b/basis/io/sockets/sockets-docs.factor
@@ -27,8 +27,9 @@ $nl
     { { $link inet4 } " - a TCP/IP connection to an IPv4 address and port number; no name lookup is performed" }
     { { $link inet6 } " - a TCP/IP connection to an IPv6 address and port number; no name lookup is performed" }
 }
-"The " { $vocab-link "io.server" } " library defines a nice high-level wrapper around " { $link <server> } " which makes it easy to listen for IPv4 and IPv6 connections simultaneously, perform logging, and optionally only allow connections from the loopback interface."
-{ $see-also "io.sockets.secure" } ;
+"The " { $vocab-link "io.servers.connection" } " library defines high-level wrappers around " { $link <server> } " which makes it easy to listen for IPv4, IPv6 and secure socket connections simultaneously, perform logging, and optionally only allow connections from the loopback interface."
+$nl
+"The " { $vocab-link "io.sockets.secure" } " vocabulary implements secure, encrypted sockets via SSL and TLS." ;
 
 ARTICLE: "network-packet" "Packet-oriented networking"
 "A packet-oriented socket can be opened with this word:"
@@ -61,7 +62,7 @@ ARTICLE: "network-streams" "Networking"
 ABOUT: "network-streams"
 
 HELP: local
-{ $class-description "Local address specifier for Unix domain sockets on Unix systems. The " { $link local-path } " slot holds the path name of the socket. New instances are created by calling " { $link <local> } "." }
+{ $class-description "Local address specifier for Unix domain sockets on Unix systems. The " { $snippet "path" } " slot holds the path name of the socket. New instances are created by calling " { $link <local> } "." }
 { $examples
     { $code "\"/tmp/.X11-unix/0\" <local>" }
 } ;
@@ -79,7 +80,7 @@ HELP: inet
 HELP: inet4
 { $class-description "IPv4 address/port number specifier for TCP/IP and UDP/IP connections. The " { $snippet "host" } " and " { $snippet "port" } " slots hold the IPv4 address and port number, respectively. New instances are created by calling " { $link <inet4> } "." }
 { $notes
-"New instances should not be created directly; instead, use " { $link resolve-host } " to look up the address associated to a host name. Also, try to support IPv6 where possible."
+"Most applications do not operate on IPv4 addresses directly, and instead should use " { $link resolve-host } " to look up the address associated to a host name. Also, try to support IPv6 where possible."
 }
 { $examples
     { $code "\"127.0.0.1\" 8080 <inet4>" }
@@ -88,7 +89,7 @@ HELP: inet4
 HELP: inet6
 { $class-description "IPv6 address/port number specifier for TCP/IP and UDP/IP connections. The " { $snippet "host" } " and " { $snippet "port" } " slots hold the IPv6 address and port number, respectively. New instances are created by calling " { $link <inet6> } "." }
 { $notes
-"New instances should not be created directly; instead, use " { $link resolve-host } " to look up the address associated to a host name." }
+"Most applications do not operate on IPv6 addresses directly, and instead should use " { $link resolve-host } " to look up the address associated to a host name." }
 { $examples
     { $code "\"::1\" 8080 <inet6>" }
 } ;
@@ -118,10 +119,10 @@ HELP: <server>
 }
 { $notes
     "To start a TCP/IP server which listens for connections from any host, use an address specifier returned by the following code, where 1234 is the desired port number:"
-    { $code "f 1234 t resolve-host" }
+    { $code "f 1234 <inet> resolve-host" }
     "To start a server which listens for connections from the loopback interface only, use an address specifier returned by the following code, where 1234 is the desired port number:"
-    { $code "\"localhost\" 1234 t resolve-host" }
-    "Since " { $link resolve-host } " can return multiple address specifiers, your server code must listen on them all to work properly. The " { $vocab-link "io.server" } " vocabulary can be used to help with this."
+    { $code "\"localhost\" 1234 <inet> resolve-host" }
+    "Since " { $link resolve-host } " can return multiple address specifiers, your server code must listen on them all to work properly. The " { $vocab-link "io.servers.connection" } " vocabulary can be used to help with this."
     $nl
     "To start a TCP/IP server which listens for connections on a randomly-assigned port, set the port number in the address specifier to 0, and then read the " { $snippet "addr" } " slot of the server instance to obtain the actual port number it is listening on:"
     { $unchecked-example
@@ -148,9 +149,9 @@ HELP: <datagram>
 }
 { $notes
     "To accept UDP/IP packets from any host, use an address specifier returned by the following code, where 1234 is the desired port number:"
-    { $code "f 1234 t resolve-host" }
+    { $code "f 1234 <inet> resolve-host" }
     "To accept UDP/IP packets from the loopback interface only, use an address specifier returned by the following code, where 1234 is the desired port number:"
-    { $code "\"localhost\" 1234 t resolve-host" }
+    { $code "\"localhost\" 1234 <inet> resolve-host" }
     "Since " { $link resolve-host } " can return multiple address specifiers, your code must create a datagram socket for each one and co-ordinate packet sending accordingly."
     "Datagrams are low-level binary ports that don't map onto streams, so the constructor does not use an encoding"
 }
@@ -165,3 +166,7 @@ HELP: send
 { $values { "packet" byte-array } { "addrspec" "an address specifier" } { "datagram" "a datagram socket" } }
 { $description "Sends a packet to the given address." }
 { $errors "Throws an error if the packet could not be sent." } ;
+
+HELP: resolve-host
+{ $values { "addrspec" "an address specifier" } { "seq" "a sequence of address specifiers" } }
+{ $description "Resolves host names to IP addresses." } ;
diff --git a/extra/io/sockets/sockets-tests.factor b/basis/io/sockets/sockets-tests.factor
similarity index 97%
rename from extra/io/sockets/sockets-tests.factor
rename to basis/io/sockets/sockets-tests.factor
index 8264bec032..4b95a31512 100755
--- a/extra/io/sockets/sockets-tests.factor
+++ b/basis/io/sockets/sockets-tests.factor
@@ -45,7 +45,7 @@ concurrency.promises threads io.streams.string ;
 [ "1:2:0:0:0:0:3:4" ]
 [ B{ 0 1 0 2 0 0 0 0 0 0 0 0 0 3 0 4 } T{ inet6 } inet-ntop ] unit-test
 
-[ t ] [ "localhost" 80 f resolve-host length 1 >= ] unit-test
+[ t ] [ "localhost" 80 <inet> resolve-host length 1 >= ] unit-test
 
 ! Smoke-test UDP
 [ ] [ "127.0.0.1" 0 <inet4> <datagram> "datagram1" set ] unit-test
diff --git a/extra/io/sockets/sockets.factor b/basis/io/sockets/sockets.factor
similarity index 83%
rename from extra/io/sockets/sockets.factor
rename to basis/io/sockets/sockets.factor
index c5dbded093..8c9f26b1dd 100755
--- a/extra/io/sockets/sockets.factor
+++ b/basis/io/sockets/sockets.factor
@@ -5,7 +5,8 @@ USING: generic kernel io.backend namespaces continuations
 sequences arrays io.encodings io.ports io.streams.duplex
 io.encodings.ascii alien.strings io.binary accessors destructors
 classes debugger byte-arrays system combinators parser
-alien.c-types math.parser splitting math assocs inspector ;
+alien.c-types math.parser splitting grouping
+math assocs summary system vocabs.loader combinators ;
 IN: io.sockets
 
 << {
@@ -71,22 +72,14 @@ M: inet4 sockaddr-type drop "sockaddr-in" c-type ;
 M: inet4 make-sockaddr ( inet -- sockaddr )
     "sockaddr-in" <c-object>
     AF_INET over set-sockaddr-in-family
-    over inet4-port htons over set-sockaddr-in-port
-    over inet4-host
+    over port>> htons over set-sockaddr-in-port
+    over host>>
     "0.0.0.0" or
     rot inet-pton *uint over set-sockaddr-in-addr ;
 
-<PRIVATE
-
-SYMBOL: port-override
-
-: (port) port-override get swap or ;
-
-PRIVATE>
-
 M: inet4 parse-sockaddr
     >r dup sockaddr-in-addr <uint> r> inet-ntop
-    swap sockaddr-in-port ntohs (port) <inet4> ;
+    swap sockaddr-in-port ntohs <inet4> ;
 
 TUPLE: inet6 host port ;
 
@@ -102,11 +95,11 @@ M: invalid-inet6 summary drop "Invalid IPv6 address" ;
 <PRIVATE
 
 : parse-inet6 ( string -- seq )
-    dup empty? [ drop f ] [
+    [ f ] [
         ":" split [
             hex> [ "Component not a number" throw ] unless*
         ] B{ } map-as
-    ] if ;
+    ] if-empty ;
 
 : pad-inet6 ( string1 string2 -- seq )
     2dup [ length ] bi@ + 8 swap -
@@ -133,13 +126,13 @@ M: inet6 sockaddr-type drop "sockaddr-in6" c-type ;
 M: inet6 make-sockaddr ( inet -- sockaddr )
     "sockaddr-in6" <c-object>
     AF_INET6 over set-sockaddr-in6-family
-    over inet6-port htons over set-sockaddr-in6-port
-    over inet6-host "::" or
+    over port>> htons over set-sockaddr-in6-port
+    over host>> "::" or
     rot inet-pton over set-sockaddr-in6-addr ;
 
 M: inet6 parse-sockaddr
     >r dup sockaddr-in6-addr r> inet-ntop
-    swap sockaddr-in6-port ntohs (port) <inet6> ;
+    swap sockaddr-in6-port ntohs <inet6> ;
 
 : addrspec-of-family ( af -- addrspec )
     {
@@ -258,42 +251,43 @@ HOOK: (send) io-backend ( packet addrspec datagram -- )
     [ addrinfo>addrspec ] map
     sift ;
 
-: prepare-resolve-host ( host serv passive? -- host' serv' flags )
-    #! If the port is a number, we resolve for 'http' then
-    #! change it later. This is a workaround for a FreeBSD
-    #! getaddrinfo() limitation -- on Windows, Linux and Mac,
-    #! we can convert a number to a string and pass that as the
-    #! service name, but on FreeBSD this gives us an unknown
-    #! service error.
-    >r
-    dup integer? [ port-override set "http" ] when
-    r> AI_PASSIVE 0 ? ;
-
 HOOK: addrinfo-error io-backend ( n -- )
 
-: resolve-host ( host serv passive? -- seq )
-    [
-        prepare-resolve-host
-        "addrinfo" <c-object>
-        [ set-addrinfo-flags ] keep
-        PF_UNSPEC over set-addrinfo-family
-        IPPROTO_TCP over set-addrinfo-protocol
-        f <void*> [ getaddrinfo addrinfo-error ] keep *void*
-        [ parse-addrinfo-list ] keep
-        freeaddrinfo
-    ] with-scope ;
+GENERIC: resolve-host ( addrspec -- seq )
+
+TUPLE: inet host port ;
+
+C: <inet> inet
+
+: resolve-passive-host ( -- addrspecs )
+    { T{ inet6 f "::" f } T{ inet4 f "0.0.0.0" f } } [ clone ] map ;
+
+: prepare-addrinfo ( -- addrinfo )
+    "addrinfo" <c-object>
+    PF_UNSPEC over set-addrinfo-family
+    IPPROTO_TCP over set-addrinfo-protocol ;
+
+: fill-in-ports ( addrspecs port -- addrspecs )
+    [ >>port ] curry map ;
+
+M: inet resolve-host
+    [ port>> ] [ host>> ] bi [
+        f prepare-addrinfo f <void*>
+        [ getaddrinfo addrinfo-error ] keep *void*
+        [ parse-addrinfo-list ] keep freeaddrinfo
+    ] [ resolve-passive-host ] if*
+    swap fill-in-ports ;
+
+M: f resolve-host drop { } ;
+
+M: object resolve-host 1array ;
 
 : host-name ( -- string )
     256 <byte-array> dup dup length gethostname
     zero? [ "gethostname failed" throw ] unless
     ascii alien>string ;
 
-TUPLE: inet host port ;
-
-C: <inet> inet
-
-M: inet (client)
-    [ host>> ] [ port>> ] bi f resolve-host (client) ;
+M: inet (client) resolve-host (client) ;
 
 ERROR: invalid-inet-server addrspec ;
 
@@ -302,3 +296,9 @@ M: invalid-inet-server summary
 
 M: inet (server)
     invalid-inet-server ;
+
+{
+    { [ os unix? ] [ "io.unix.sockets" require ] }
+    { [ os winnt? ] [ "io.windows.nt.sockets" require ] }
+    { [ os wince? ] [ "io.windows.ce.sockets" require ] }
+} cond
diff --git a/extra/io/sockets/summary.txt b/basis/io/sockets/summary.txt
similarity index 100%
rename from extra/io/sockets/summary.txt
rename to basis/io/sockets/summary.txt
diff --git a/basis/io/sockets/tags.txt b/basis/io/sockets/tags.txt
new file mode 100644
index 0000000000..992ae12982
--- /dev/null
+++ b/basis/io/sockets/tags.txt
@@ -0,0 +1 @@
+network
diff --git a/extra/concurrency/semaphores/authors.txt b/basis/io/streams/duplex/authors.txt
similarity index 100%
rename from extra/concurrency/semaphores/authors.txt
rename to basis/io/streams/duplex/authors.txt
diff --git a/extra/io/streams/duplex/duplex-docs.factor b/basis/io/streams/duplex/duplex-docs.factor
similarity index 100%
rename from extra/io/streams/duplex/duplex-docs.factor
rename to basis/io/streams/duplex/duplex-docs.factor
diff --git a/extra/io/streams/duplex/duplex-tests.factor b/basis/io/streams/duplex/duplex-tests.factor
similarity index 100%
rename from extra/io/streams/duplex/duplex-tests.factor
rename to basis/io/streams/duplex/duplex-tests.factor
diff --git a/extra/io/streams/duplex/duplex.factor b/basis/io/streams/duplex/duplex.factor
similarity index 87%
rename from extra/io/streams/duplex/duplex.factor
rename to basis/io/streams/duplex/duplex.factor
index 02d7ab61be..6f3be15016 100755
--- a/extra/io/streams/duplex/duplex.factor
+++ b/basis/io/streams/duplex/duplex.factor
@@ -1,13 +1,10 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel continuations destructors io io.encodings
-io.encodings.private io.timeouts debugger inspector listener
+io.encodings.private io.timeouts debugger summary listener
 accessors delegate delegate.protocols ;
 IN: io.streams.duplex
 
-! We ensure that the stream can only be closed once, to preserve
-! integrity of duplex I/O ports.
-
 TUPLE: duplex-stream in out ;
 
 C: <duplex-stream> duplex-stream
diff --git a/extra/io/streams/duplex/summary.txt b/basis/io/streams/duplex/summary.txt
similarity index 100%
rename from extra/io/streams/duplex/summary.txt
rename to basis/io/streams/duplex/summary.txt
diff --git a/basis/io/streams/limited/limited-tests.factor b/basis/io/streams/limited/limited-tests.factor
new file mode 100644
index 0000000000..eb5b921260
--- /dev/null
+++ b/basis/io/streams/limited/limited-tests.factor
@@ -0,0 +1,40 @@
+IN: io.streams.limited.tests
+USING: io io.streams.limited io.encodings io.encodings.string
+io.encodings.ascii io.encodings.binary io.streams.byte-array
+namespaces tools.test strings kernel ;
+
+[ ] [
+    "hello world\nhow are you today\nthis is a very long line indeed"
+    ascii encode binary <byte-reader> "data" set
+] unit-test
+
+[ ] [ "data" get 24 <limited-stream> "limited" set ] unit-test
+
+[ CHAR: h ] [ "limited" get stream-read1 ] unit-test
+
+[ ] [ "limited" get ascii <decoder> "decoded" set ] unit-test
+
+[ "ello world" ] [ "decoded" get stream-readln ] unit-test
+
+[ "how " ] [ 4 "decoded" get stream-read ] unit-test
+
+[ "decoded" get stream-readln ] [ limit-exceeded? ] must-fail-with
+
+[ ] [
+    "abc\ndef\nghi"
+    ascii encode binary <byte-reader> "data" set
+] unit-test
+
+[ ] [ "data" get 7 <limited-stream> "limited" set ] unit-test
+
+[ "abc" CHAR: \n ] [ "\n" "limited" get stream-read-until [ >string ] dip ] unit-test
+
+[ "\n" "limited" get stream-read-until ] [ limit-exceeded? ] must-fail-with
+
+[ "he" CHAR: l ] [
+    B{ CHAR: h CHAR: e CHAR: l CHAR: l CHAR: o }
+    ascii <byte-reader> [
+        5 limit-input
+        "l" read-until
+    ] with-input-stream
+] unit-test
diff --git a/basis/io/streams/limited/limited.factor b/basis/io/streams/limited/limited.factor
new file mode 100644
index 0000000000..e89b31a884
--- /dev/null
+++ b/basis/io/streams/limited/limited.factor
@@ -0,0 +1,47 @@
+! Copyright (C) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math io io.encodings destructors accessors
+sequences namespaces ;
+IN: io.streams.limited
+
+TUPLE: limited-stream stream count limit ;
+
+: <limited-stream> ( stream limit -- stream' )
+    limited-stream new
+        swap >>limit
+        swap >>stream
+        0 >>count ;
+
+GENERIC# limit 1 ( stream limit -- stream' )
+
+M: decoder limit [ clone ] dip [ limit ] curry change-stream ;
+
+M: object limit <limited-stream> ;
+
+: limit-input ( limit -- ) input-stream [ swap limit ] change ;
+
+ERROR: limit-exceeded ;
+
+: check-limit ( n stream -- )
+    [ + ] change-count
+    [ count>> ] [ limit>> ] bi >=
+    [ limit-exceeded ] when ; inline
+
+M: limited-stream stream-read1
+    1 over check-limit stream>> stream-read1 ;
+
+M: limited-stream stream-read
+    2dup check-limit stream>> stream-read ;
+
+M: limited-stream stream-read-partial
+    2dup check-limit stream>> stream-read-partial ;
+
+: (read-until) ( stream seps buf -- stream seps buf sep/f )
+    3dup [ [ stream-read1 dup ] dip memq? ] dip
+    swap [ drop ] [ push (read-until) ] if ;
+
+M: limited-stream stream-read-until
+    swap BV{ } clone (read-until) [ 2nip B{ } like ] dip ;
+
+M: limited-stream dispose
+    stream>> dispose ;
diff --git a/core/io/streams/memory/memory.factor b/basis/io/streams/memory/memory.factor
similarity index 100%
rename from core/io/streams/memory/memory.factor
rename to basis/io/streams/memory/memory.factor
diff --git a/extra/core-foundation/authors.txt b/basis/io/streams/null/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/core-foundation/authors.txt
rename to basis/io/streams/null/authors.txt
diff --git a/extra/io/streams/null/null.factor b/basis/io/streams/null/null.factor
similarity index 100%
rename from extra/io/streams/null/null.factor
rename to basis/io/streams/null/null.factor
diff --git a/extra/documents/authors.txt b/basis/io/styles/authors.txt
similarity index 100%
rename from extra/documents/authors.txt
rename to basis/io/styles/authors.txt
diff --git a/core/io/styles/styles-docs.factor b/basis/io/styles/styles-docs.factor
similarity index 92%
rename from core/io/styles/styles-docs.factor
rename to basis/io/styles/styles-docs.factor
index 5481560f94..48b72255a7 100644
--- a/core/io/styles/styles-docs.factor
+++ b/basis/io/styles/styles-docs.factor
@@ -24,8 +24,14 @@ ARTICLE: "table-styles" "Table styles"
 { $subsection table-gap }
 { $subsection table-border } ;
 
+HELP: write-object
+{ $values { "str" string } { "obj" "an object" } }
+{ $description "Writes a string to " { $link output-stream } ", associating it with the object. If formatted output is supported, the string will become a clickable presentation of the object, otherwise this word behaves like a call to " { $link write } "." }
+$io-error ;
+
 ARTICLE: "presentations" "Presentations"
-"The " { $link presented } " style can be used to emit clickable objects. The " { $link write-object } " word should be used instead of setting this directly." ;
+"The " { $link presented } " style can be used to emit clickable objects. A utility word for outputting this style:"
+{ $subsection write-object } ;
 
 ARTICLE: "styles" "Formatted output"
 "The " { $link stream-format } ", " { $link with-style } ", " { $link with-nesting } " and " { $link tabular-output } " words take a hashtable of style attributes. Output stream implementations are free to ignore style information."
@@ -94,7 +100,7 @@ HELP: font-style
 { $description "Character style. Font style, one of " { $link plain } ", " { $link bold } ", " { $link italic } ", or " { $link bold-italic } "." }
 { $examples
     "This example outputs text in all three styles:"
-    { $code "{ plain bold italic bold-italic }\n[ [ word-name ] keep font-style associate format nl ] each" }
+    { $code "{ plain bold italic bold-italic }\n[ [ name>> ] keep font-style associate format nl ] each" }
 }  ;
 
 HELP: presented
diff --git a/core/io/styles/styles.factor b/basis/io/styles/styles.factor
similarity index 77%
rename from core/io/styles/styles.factor
rename to basis/io/styles/styles.factor
index 4c19d87435..b0eb327927 100644
--- a/core/io/styles/styles.factor
+++ b/basis/io/styles/styles.factor
@@ -1,5 +1,6 @@
-! Copyright (C) 2005, 2006 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
+USING: hashtables io colors ;
 IN: io.styles
 
 SYMBOL: plain
@@ -32,10 +33,12 @@ SYMBOL: table-border
 : standard-table-style ( -- style )
     H{
         { table-gap { 5 5 } }
-        { table-border { 0.8 0.8 0.8 1.0 } }
+        { table-border T{ rgba f 0.8 0.8 0.8 1.0 } }
     } ;
 
 ! Input history
 TUPLE: input string ;
 
 C: <input> input
+
+: write-object ( str obj -- ) presented associate format ;
diff --git a/core/io/styles/summary.txt b/basis/io/styles/summary.txt
similarity index 100%
rename from core/io/styles/summary.txt
rename to basis/io/styles/summary.txt
diff --git a/core/io/thread/thread.factor b/basis/io/thread/thread.factor
similarity index 100%
rename from core/io/thread/thread.factor
rename to basis/io/thread/thread.factor
diff --git a/extra/io/timeouts/summary.txt b/basis/io/timeouts/summary.txt
similarity index 100%
rename from extra/io/timeouts/summary.txt
rename to basis/io/timeouts/summary.txt
diff --git a/extra/io/timeouts/timeouts-docs.factor b/basis/io/timeouts/timeouts-docs.factor
similarity index 100%
rename from extra/io/timeouts/timeouts-docs.factor
rename to basis/io/timeouts/timeouts-docs.factor
diff --git a/extra/io/timeouts/timeouts.factor b/basis/io/timeouts/timeouts.factor
similarity index 100%
rename from extra/io/timeouts/timeouts.factor
rename to basis/io/timeouts/timeouts.factor
diff --git a/extra/editors/authors.txt b/basis/io/unix/authors.txt
similarity index 100%
rename from extra/editors/authors.txt
rename to basis/io/unix/authors.txt
diff --git a/extra/editors/jedit/authors.txt b/basis/io/unix/backend/authors.txt
similarity index 100%
rename from extra/editors/jedit/authors.txt
rename to basis/io/unix/backend/authors.txt
diff --git a/extra/io/unix/backend/backend.factor b/basis/io/unix/backend/backend.factor
similarity index 64%
rename from extra/io/unix/backend/backend.factor
rename to basis/io/unix/backend/backend.factor
index 67856a0570..aa27b21d98 100755
--- a/extra/io/unix/backend/backend.factor
+++ b/basis/io/unix/backend/backend.factor
@@ -1,10 +1,11 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien generic assocs kernel kernel.private math
-io.ports sequences strings structs sbufs threads unix
+USING: alien alien.c-types generic assocs kernel kernel.private
+math io.ports sequences strings structs sbufs threads unix
 vectors io.buffers io.backend io.encodings math.parser
 continuations system libc qualified namespaces io.timeouts
-io.encodings.utf8 destructors accessors inspector combinators ;
+io.encodings.utf8 destructors accessors summary combinators
+locals ;
 QUALIFIED: io
 IN: io.unix.backend
 
@@ -12,17 +13,19 @@ GENERIC: handle-fd ( handle -- fd )
 
 TUPLE: fd fd disposed ;
 
+: init-fd ( fd -- fd )
+    [
+        |dispose
+        dup fd>> F_SETFL O_NONBLOCK fcntl io-error
+        dup fd>> F_SETFD FD_CLOEXEC fcntl io-error
+    ] with-destructors ;
+
 : <fd> ( n -- fd )
     #! We drop the error code rather than calling io-error,
     #! since on OS X 10.3, this operation fails from init-io
     #! when running the Factor.app (presumably because fd 0 and
     #! 1 are closed).
-    fd new
-        swap
-        [ F_SETFL O_NONBLOCK fcntl drop ]
-        [ F_SETFD FD_CLOEXEC fcntl drop ]
-        [ >>fd ]
-        tri ;
+    f fd boa ;
 
 M: fd dispose
     dup disposed>> [ drop ] [
@@ -44,14 +47,11 @@ TUPLE: mx fd reads writes ;
 
 GENERIC: add-input-callback ( thread fd mx -- )
 
-: add-callback ( thread fd assoc -- )
-    [ ?push ] change-at ;
-
-M: mx add-input-callback reads>> add-callback ;
+M: mx add-input-callback reads>> push-at ;
 
 GENERIC: add-output-callback ( thread fd mx -- )
 
-M: mx add-output-callback writes>> add-callback ;
+M: mx add-output-callback writes>> push-at ;
 
 GENERIC: remove-input-callbacks ( fd mx -- callbacks )
 
@@ -125,7 +125,8 @@ M: fd refill
     } cond ;
 
 M: unix (wait-to-read) ( port -- )
-    dup dup handle>> refill dup
+    dup
+    dup handle>> dup check-disposed refill dup
     [ dupd wait-for-port (wait-to-read) ] [ 2drop ] if ;
 
 ! Writers
@@ -144,13 +145,62 @@ M: fd drain
     } cond ;
 
 M: unix (wait-to-write) ( port -- )
-    dup dup handle>> drain dup [ wait-for-port ] [ 2drop ] if ;
+    dup
+    dup handle>> dup check-disposed drain
+    dup [ wait-for-port ] [ 2drop ] if ;
 
 M: unix io-multiplex ( ms/f -- )
     mx get-global wait-for-events ;
 
+! On Unix, you're not supposed to set stdin to non-blocking
+! because the fd might be shared with another process (either
+! parent or child). So what we do is have the VM start a thread
+! which pumps data from the real stdin to a pipe. We set the
+! pipe to non-blocking, and read from it instead of the real
+! stdin. Very crufty, but it will suffice until we get native
+! threading support at the language level.
+TUPLE: stdin control size data disposed ;
+
+M: stdin dispose*
+    [
+        [ control>> &dispose drop ]
+        [ size>> &dispose drop ]
+        [ data>> &dispose drop ]
+        tri
+    ] with-destructors ;
+
+: wait-for-stdin ( stdin -- n )
+    [ control>> CHAR: X over io:stream-write1 io:stream-flush ]
+    [ size>> "ssize_t" heap-size swap io:stream-read *int ]
+    bi ;
+
+:: refill-stdin ( buffer stdin size -- )
+    stdin data>> handle-fd buffer buffer-end size read
+    dup 0 < [
+        drop
+        err_no EINTR = [ buffer stdin size refill-stdin ] [ (io-error) ] if
+    ] [
+        size = [ "Error reading stdin pipe" throw ] unless
+        size buffer n>buffer
+    ] if ;
+
+M: stdin refill
+    [ buffer>> ] [ dup wait-for-stdin ] bi* refill-stdin f ;
+
+: control-write-fd ( -- fd ) "control_write" f dlsym *uint ;
+
+: size-read-fd ( -- fd ) "size_read" f dlsym *uint ;
+
+: data-read-fd ( -- fd ) "stdin_read" f dlsym *uint ;
+
+: <stdin> ( -- stdin )
+    stdin new
+        control-write-fd <fd> <output-port> >>control
+        size-read-fd <fd> init-fd <input-port> >>size
+        data-read-fd <fd> >>data ;
+
 M: unix (init-stdio) ( -- )
-    0 <fd> <input-port>
+    <stdin> <input-port>
     1 <fd> <output-port>
     2 <fd> <output-port> ;
 
diff --git a/extra/io/unix/backend/summary.txt b/basis/io/unix/backend/summary.txt
similarity index 100%
rename from extra/io/unix/backend/summary.txt
rename to basis/io/unix/backend/summary.txt
diff --git a/basis/io/unix/backend/tags.txt b/basis/io/unix/backend/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/backend/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/eval-server/authors.txt b/basis/io/unix/bsd/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/eval-server/authors.txt
rename to basis/io/unix/bsd/authors.txt
diff --git a/extra/io/unix/bsd/bsd.factor b/basis/io/unix/bsd/bsd.factor
similarity index 90%
rename from extra/io/unix/bsd/bsd.factor
rename to basis/io/unix/bsd/bsd.factor
index c8219a9f63..50b4b610da 100755
--- a/extra/io/unix/bsd/bsd.factor
+++ b/basis/io/unix/bsd/bsd.factor
@@ -2,8 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 IN: io.unix.bsd
 USING: namespaces system kernel accessors assocs continuations
-unix
-io.backend io.unix.backend io.unix.select io.monitors ;
+unix io.backend io.unix.backend io.unix.select ;
 
 M: bsd init-io ( -- )
     <select-mx> mx set-global ;
diff --git a/basis/io/unix/bsd/tags.txt b/basis/io/unix/bsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/bsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/freetype/authors.txt b/basis/io/unix/epoll/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/freetype/authors.txt
rename to basis/io/unix/epoll/authors.txt
diff --git a/extra/io/unix/epoll/epoll.factor b/basis/io/unix/epoll/epoll.factor
similarity index 100%
rename from extra/io/unix/epoll/epoll.factor
rename to basis/io/unix/epoll/epoll.factor
diff --git a/basis/io/unix/epoll/tags.txt b/basis/io/unix/epoll/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/epoll/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/globs/authors.txt b/basis/io/unix/files/authors.txt
similarity index 100%
rename from extra/globs/authors.txt
rename to basis/io/unix/files/authors.txt
diff --git a/extra/io/unix/files/files-tests.factor b/basis/io/unix/files/files-tests.factor
similarity index 100%
rename from extra/io/unix/files/files-tests.factor
rename to basis/io/unix/files/files-tests.factor
diff --git a/extra/io/unix/files/files.factor b/basis/io/unix/files/files.factor
similarity index 92%
rename from extra/io/unix/files/files.factor
rename to basis/io/unix/files/files.factor
index 9f554a044b..c6eda50855 100755
--- a/extra/io/unix/files/files.factor
+++ b/basis/io/unix/files/files.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: io.backend io.ports io.unix.backend io.files io
 unix unix.stat unix.time kernel math continuations
-math.bitfields byte-arrays alien combinators calendar
+math.bitwise byte-arrays alien combinators calendar
 io.encodings.binary accessors sequences strings system
 io.files.private destructors ;
 
@@ -19,7 +19,7 @@ M: unix cd ( path -- ) [ chdir ] unix-system-call drop ;
 : open-read ( path -- fd ) O_RDONLY file-mode open-file ;
 
 M: unix (file-reader) ( path -- stream )
-    open-read <fd> <input-port> ;
+    open-read <fd> init-fd <input-port> ;
 
 : write-flags { O_WRONLY O_CREAT O_TRUNC } flags ; inline
 
@@ -27,7 +27,7 @@ M: unix (file-reader) ( path -- stream )
     write-flags file-mode open-file ;
 
 M: unix (file-writer) ( path -- stream )
-    open-write <fd> <output-port> ;
+    open-write <fd> init-fd <output-port> ;
 
 : append-flags { O_WRONLY O_APPEND O_CREAT } flags ; inline
 
@@ -38,7 +38,7 @@ M: unix (file-writer) ( path -- stream )
     ] with-destructors ;
 
 M: unix (file-appender) ( path -- stream )
-    open-append <fd> <output-port> ;
+    open-append <fd> init-fd <output-port> ;
 
 : touch-mode ( -- n )
     { O_WRONLY O_APPEND O_CREAT O_EXCL } flags ; foldable
diff --git a/extra/io/unix/files/summary.txt b/basis/io/unix/files/summary.txt
similarity index 100%
rename from extra/io/unix/files/summary.txt
rename to basis/io/unix/files/summary.txt
diff --git a/basis/io/unix/files/tags.txt b/basis/io/unix/files/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/files/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/unix/files/unique/tags.txt b/basis/io/unix/files/unique/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/files/unique/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/files/unique/unique.factor b/basis/io/unix/files/unique/unique.factor
similarity index 83%
rename from extra/io/unix/files/unique/unique.factor
rename to basis/io/unix/files/unique/unique.factor
index dca2f51958..95e321fd93 100644
--- a/extra/io/unix/files/unique/unique.factor
+++ b/basis/io/unix/files/unique/unique.factor
@@ -1,4 +1,4 @@
-USING: kernel io.ports io.unix.backend math.bitfields
+USING: kernel io.ports io.unix.backend math.bitwise
 unix io.files.unique.backend system ;
 IN: io.unix.files.unique
 
diff --git a/extra/io/unix/freebsd/freebsd.factor b/basis/io/unix/freebsd/freebsd.factor
similarity index 100%
rename from extra/io/unix/freebsd/freebsd.factor
rename to basis/io/unix/freebsd/freebsd.factor
diff --git a/basis/io/unix/freebsd/tags.txt b/basis/io/unix/freebsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/freebsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/help/authors.txt b/basis/io/unix/kqueue/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/help/authors.txt
rename to basis/io/unix/kqueue/authors.txt
diff --git a/extra/io/unix/kqueue/kqueue.factor b/basis/io/unix/kqueue/kqueue.factor
similarity index 98%
rename from extra/io/unix/kqueue/kqueue.factor
rename to basis/io/unix/kqueue/kqueue.factor
index 8888d0182f..b3e69a453c 100755
--- a/extra/io/unix/kqueue/kqueue.factor
+++ b/basis/io/unix/kqueue/kqueue.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien.c-types kernel math math.bitfields namespaces
+USING: alien.c-types kernel math math.bitwise namespaces
 locals accessors combinators threads vectors hashtables
 sequences assocs continuations sets
 unix unix.time unix.kqueue unix.process
diff --git a/basis/io/unix/kqueue/tags.txt b/basis/io/unix/kqueue/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/kqueue/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/help/cookbook/authors.txt b/basis/io/unix/launcher/authors.txt
similarity index 100%
rename from extra/help/cookbook/authors.txt
rename to basis/io/unix/launcher/authors.txt
diff --git a/extra/io/unix/launcher/launcher-tests.factor b/basis/io/unix/launcher/launcher-tests.factor
similarity index 87%
rename from extra/io/unix/launcher/launcher-tests.factor
rename to basis/io/unix/launcher/launcher-tests.factor
index 6d1f7f1796..33988c273b 100755
--- a/extra/io/unix/launcher/launcher-tests.factor
+++ b/basis/io/unix/launcher/launcher-tests.factor
@@ -1,7 +1,8 @@
 IN: io.unix.launcher.tests
 USING: io.files tools.test io.launcher arrays io namespaces
 continuations math io.encodings.binary io.encodings.ascii
-accessors kernel sequences io.encodings.utf8 destructors ;
+accessors kernel sequences io.encodings.utf8 destructors
+io.streams.duplex ;
 
 [ ] [
     [ "launcher-test-1" temp-file delete-file ] ignore-errors
@@ -111,4 +112,12 @@ accessors kernel sequences io.encodings.utf8 destructors ;
     "append-test" temp-file utf8 file-contents
 ] unit-test
 
-[ ] [ "ls" utf8 <process-stream> contents drop ] unit-test
+[ t ] [ "ls" utf8 <process-stream> contents >boolean ] unit-test
+
+[ "Hello world.\n" ] [
+    "cat" utf8 <process-stream> [
+        "Hello world.\n" write
+        output-stream get dispose
+        input-stream get contents
+    ] with-stream
+] unit-test
diff --git a/extra/io/unix/launcher/launcher.factor b/basis/io/unix/launcher/launcher.factor
similarity index 91%
rename from extra/io/unix/launcher/launcher.factor
rename to basis/io/unix/launcher/launcher.factor
index 3b9c8fc7af..fb8dc85cf8 100755
--- a/extra/io/unix/launcher/launcher.factor
+++ b/basis/io/unix/launcher/launcher.factor
@@ -30,17 +30,14 @@ USE: unix
         } at set-priority
     ] when* ;
 
-: redirect-fd ( oldfd fd -- )
-    2dup = [ 2drop ] [ dupd dup2 io-error close-file ] if ;
-
 : reset-fd ( fd -- )
-    #! We drop the error code because on *BSD, fcntl of
-    #! /dev/null fails.
-    [ F_SETFL 0 fcntl drop ]
-    [ F_SETFD 0 fcntl drop ] bi ;
+    [ F_SETFL 0 fcntl io-error ] [ F_SETFD 0 fcntl io-error ] bi ;
+
+: redirect-fd ( oldfd fd -- )
+    2dup = [ 2drop ] [ dup2 io-error ] if ;
 
 : redirect-inherit ( obj mode fd -- )
-    2nip reset-fd ;
+    3drop ;
 
 : redirect-file ( obj mode fd -- )
     >r >r normalize-path r> file-mode
@@ -62,7 +59,8 @@ USE: unix
         [ >r >r underlying-handle r> r> redirect ]
     } cond ;
 
-: ?closed dup +closed+ eq? [ drop "/dev/null" ] when ;
+: ?closed ( obj -- obj' )
+    dup +closed+ eq? [ drop "/dev/null" ] when ;
 
 : setup-redirection ( process -- process )
     dup stdin>> ?closed read-flags 0 redirect
diff --git a/extra/io/unix/launcher/parser/parser-tests.factor b/basis/io/unix/launcher/parser/parser-tests.factor
similarity index 100%
rename from extra/io/unix/launcher/parser/parser-tests.factor
rename to basis/io/unix/launcher/parser/parser-tests.factor
diff --git a/extra/io/unix/launcher/parser/parser.factor b/basis/io/unix/launcher/parser/parser.factor
similarity index 65%
rename from extra/io/unix/launcher/parser/parser.factor
rename to basis/io/unix/launcher/parser/parser.factor
index f3bb82343a..e5e83ab4e9 100755
--- a/extra/io/unix/launcher/parser/parser.factor
+++ b/basis/io/unix/launcher/parser/parser.factor
@@ -1,7 +1,6 @@
 ! Copyright (C) 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: peg peg.parsers kernel sequences strings words
-memoize ;
+USING: peg peg.parsers kernel sequences strings words ;
 IN: io.unix.launcher.parser
 
 ! Our command line parser. Supported syntax:
@@ -9,20 +8,20 @@ IN: io.unix.launcher.parser
 ! foo\ bar -- escaping the space
 ! 'foo bar' -- quotation
 ! "foo bar" -- quotation
-MEMO: 'escaped-char' ( -- parser )
-    "\\" token [ drop t ] satisfy 2seq [ second ] action ;
+: 'escaped-char' ( -- parser )
+    "\\" token any-char 2seq [ second ] action ;
 
-MEMO: 'quoted-char' ( delimiter -- parser' )
+: 'quoted-char' ( delimiter -- parser' )
     'escaped-char'
     swap [ member? not ] curry satisfy
     2choice ; inline
 
-MEMO: 'quoted' ( delimiter -- parser )
+: 'quoted' ( delimiter -- parser )
     dup 'quoted-char' repeat0 swap dup surrounded-by ;
 
-MEMO: 'unquoted' ( -- parser ) " '\"" 'quoted-char' repeat1 ;
+: 'unquoted' ( -- parser ) " '\"" 'quoted-char' repeat1 ;
 
-MEMO: 'argument' ( -- parser )
+: 'argument' ( -- parser )
     "\"" 'quoted'
     "'" 'quoted'
     'unquoted' 3choice
diff --git a/basis/io/unix/launcher/parser/tags.txt b/basis/io/unix/launcher/parser/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/launcher/parser/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/unix/launcher/tags.txt b/basis/io/unix/launcher/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/launcher/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/help/crossref/authors.txt b/basis/io/unix/linux/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/help/crossref/authors.txt
rename to basis/io/unix/linux/authors.txt
diff --git a/extra/io/unix/linux/linux.factor b/basis/io/unix/linux/linux.factor
similarity index 100%
rename from extra/io/unix/linux/linux.factor
rename to basis/io/unix/linux/linux.factor
diff --git a/basis/io/unix/linux/monitors/monitors-tests.factor b/basis/io/unix/linux/monitors/monitors-tests.factor
new file mode 100644
index 0000000000..c71b053919
--- /dev/null
+++ b/basis/io/unix/linux/monitors/monitors-tests.factor
@@ -0,0 +1,34 @@
+IN: io.unix.linux.monitors.tests
+USING: io.monitors tools.test io.files system sequences
+continuations namespaces concurrency.count-downs kernel io
+threads calendar prettyprint destructors io.timeouts ;
+
+! On Linux, a notification on the directory itself would report an invalid
+! path name
+[
+    [ ] [ "monitor-test-self" temp-file make-directories ] unit-test
+    
+    ! Non-recursive
+    [ ] [ "monitor-test-self" temp-file f <monitor> "m" set ] unit-test
+
+    [ ] [ "monitor-test-self" temp-file touch-file ] unit-test
+
+    [ t ] [
+        "m" get next-change drop
+        [ "" = ] [ "monitor-test-self" temp-file = ] bi or
+    ] unit-test
+
+    [ ] [ "m" get dispose ] unit-test
+    
+    ! Recursive
+    [ ] [ "monitor-test-self" temp-file t <monitor> "m" set ] unit-test
+
+    [ ] [ "monitor-test-self" temp-file touch-file ] unit-test
+
+    [ t ] [
+        "m" get next-change drop
+        [ "" = ] [ "monitor-test-self" temp-file = ] bi or
+    ] unit-test
+
+    [ ] [ "m" get dispose ] unit-test
+] with-monitors
diff --git a/extra/io/unix/linux/monitors/monitors.factor b/basis/io/unix/linux/monitors/monitors.factor
similarity index 89%
rename from extra/io/unix/linux/monitors/monitors.factor
rename to basis/io/unix/linux/monitors/monitors.factor
index 4c0bf5daf9..ff23fba0c6 100644
--- a/extra/io/unix/linux/monitors/monitors.factor
+++ b/basis/io/unix/linux/monitors/monitors.factor
@@ -4,7 +4,7 @@ USING: kernel io.backend io.monitors io.monitors.recursive
 io.files io.buffers io.monitors io.ports io.timeouts
 io.unix.backend io.unix.select io.encodings.utf8
 unix.linux.inotify assocs namespaces threads continuations init
-math math.bitfields sets alien alien.strings alien.c-types
+math math.bitwise sets alien alien.strings alien.c-types
 vocabs.loader accessors system hashtables destructors unix ;
 IN: io.unix.linux.monitors
 
@@ -23,9 +23,9 @@ TUPLE: linux-monitor < monitor wd inotify watches disposed ;
 : wd>monitor ( wd -- monitor ) watches get at ;
 
 : <inotify> ( -- port/f )
-    inotify_init dup 0 < [ drop f ] [ <fd> <input-port> ] if ;
+    inotify_init dup 0 < [ drop f ] [ <fd> init-fd <input-port> ] if ;
 
-: inotify-fd inotify get handle>> handle-fd ;
+: inotify-fd ( -- fd ) inotify get handle>> handle-fd ;
 
 : check-existing ( wd -- )
     watches get key? [
@@ -41,7 +41,7 @@ TUPLE: linux-monitor < monitor wd inotify watches disposed ;
     [ (add-watch) ] [ drop ] 2bi r>
     <linux-monitor> [ ] [ ] [ wd>> ] tri watches get set-at ;
 
-: check-inotify
+: check-inotify ( -- )
     inotify get [
         "Calling <monitor> outside with-monitors" throw
     ] unless ;
@@ -83,12 +83,15 @@ M: linux-monitor dispose* ( monitor -- )
         drop
     ] { } make prune ;
 
+: parse-event-name ( event -- name )
+    dup inotify-event-len zero?
+    [ drop "" ] [ inotify-event-name utf8 alien>string ] if ;
+
 : parse-file-notify ( buffer -- path changed )
     dup inotify-event-mask ignore-flags? [
         drop f f
     ] [
-        [ inotify-event-name utf8 alien>string ]
-        [ inotify-event-mask parse-action ] bi
+        [ parse-event-name ] [ inotify-event-mask parse-action ] bi
     ] if ;
 
 : events-exhausted? ( i buffer -- ? )
diff --git a/basis/io/unix/linux/monitors/tags.txt b/basis/io/unix/linux/monitors/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/linux/monitors/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/unix/linux/tags.txt b/basis/io/unix/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/unix/macosx/macosx.factor b/basis/io/unix/macosx/macosx.factor
new file mode 100644
index 0000000000..77140b81c9
--- /dev/null
+++ b/basis/io/unix/macosx/macosx.factor
@@ -0,0 +1,6 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+IN: io.unix.macosx
+USING: io.unix.bsd io.backend system ;
+
+macosx set-io-backend
diff --git a/extra/io/unix/macosx/macosx.factor b/basis/io/unix/macosx/monitors/monitors.factor
similarity index 77%
rename from extra/io/unix/macosx/macosx.factor
rename to basis/io/unix/macosx/monitors/monitors.factor
index 3471dc856a..a5f36aa93b 100644
--- a/extra/io/unix/macosx/macosx.factor
+++ b/basis/io/unix/macosx/monitors/monitors.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io.unix.bsd io.backend io.monitors core-foundation.fsevents
-continuations kernel sequences namespaces arrays system locals
-accessors destructors ;
-IN: io.unix.macosx
+USING: io.backend io.monitors
+core-foundation.fsevents continuations kernel sequences
+namespaces arrays system locals accessors destructors ;
+IN: io.unix.macosx.monitors
 
 TUPLE: macosx-monitor < monitor handle ;
 
diff --git a/basis/io/unix/macosx/monitors/tags.txt b/basis/io/unix/macosx/monitors/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/macosx/monitors/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/unix/macosx/tags.txt b/basis/io/unix/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/help/definitions/authors.txt b/basis/io/unix/mmap/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/help/definitions/authors.txt
rename to basis/io/unix/mmap/authors.txt
diff --git a/extra/io/unix/mmap/mmap.factor b/basis/io/unix/mmap/mmap.factor
similarity index 91%
rename from extra/io/unix/mmap/mmap.factor
rename to basis/io/unix/mmap/mmap.factor
index c31e23849e..d5dcda9436 100755
--- a/extra/io/unix/mmap/mmap.factor
+++ b/basis/io/unix/mmap/mmap.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien io io.files kernel math math.bitfields system unix
+USING: alien io io.files kernel math math.bitwise system unix
 io.unix.backend io.ports io.mmap destructors locals accessors ;
 IN: io.unix.mmap
 
diff --git a/basis/io/unix/mmap/tags.txt b/basis/io/unix/mmap/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/mmap/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/netbsd/netbsd.factor b/basis/io/unix/netbsd/netbsd.factor
similarity index 100%
rename from extra/io/unix/netbsd/netbsd.factor
rename to basis/io/unix/netbsd/netbsd.factor
diff --git a/basis/io/unix/netbsd/tags.txt b/basis/io/unix/netbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/netbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/openbsd/openbsd.factor b/basis/io/unix/openbsd/openbsd.factor
similarity index 100%
rename from extra/io/unix/openbsd/openbsd.factor
rename to basis/io/unix/openbsd/openbsd.factor
diff --git a/basis/io/unix/openbsd/tags.txt b/basis/io/unix/openbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/openbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/pipes/pipes-tests.factor b/basis/io/unix/pipes/pipes-tests.factor
similarity index 83%
rename from extra/io/unix/pipes/pipes-tests.factor
rename to basis/io/unix/pipes/pipes-tests.factor
index 27a490d801..6ea74043ca 100644
--- a/extra/io/unix/pipes/pipes-tests.factor
+++ b/basis/io/unix/pipes/pipes-tests.factor
@@ -2,7 +2,7 @@ USING: tools.test io.pipes io.unix.pipes io.encodings.utf8
 io.encodings io namespaces sequences ;
 IN: io.unix.pipes.tests
 
-[ { 0 0 } ] [ { "ls" "grep x" } run-pipeline ] unit-test
+[ { 0 0 } ] [ { "ls" "grep ." } run-pipeline ] unit-test
 
 [ { 0 f 0 } ] [
     {
@@ -12,6 +12,6 @@ IN: io.unix.pipes.tests
             output-stream [ utf8 <encoder> ] change
             input-stream get lines reverse [ print ] each f
         ]
-        "grep x"
+        "grep ."
     } run-pipeline
 ] unit-test
diff --git a/extra/io/unix/pipes/pipes.factor b/basis/io/unix/pipes/pipes.factor
similarity index 81%
rename from extra/io/unix/pipes/pipes.factor
rename to basis/io/unix/pipes/pipes.factor
index 71366bfa4a..53c336c555 100644
--- a/extra/io/unix/pipes/pipes.factor
+++ b/basis/io/unix/pipes/pipes.factor
@@ -8,4 +8,4 @@ QUALIFIED: io.pipes
 M: unix io.pipes:(pipe) ( -- pair )
     2 "int" <c-array>
     dup pipe io-error
-    2 c-int-array> first2 [ <fd> ] bi@ io.pipes:pipe boa ;
+    2 c-int-array> first2 [ <fd> init-fd ] bi@ io.pipes:pipe boa ;
diff --git a/basis/io/unix/pipes/tags.txt b/basis/io/unix/pipes/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/pipes/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/help/handbook/authors.txt b/basis/io/unix/select/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/help/handbook/authors.txt
rename to basis/io/unix/select/authors.txt
diff --git a/extra/io/unix/select/select.factor b/basis/io/unix/select/select.factor
similarity index 88%
rename from extra/io/unix/select/select.factor
rename to basis/io/unix/select/select.factor
index fea5f4e9ae..f0547da10e 100755
--- a/extra/io/unix/select/select.factor
+++ b/basis/io/unix/select/select.factor
@@ -30,10 +30,10 @@ TUPLE: select-mx < mx read-fdset write-fdset ;
 : init-fdset ( fds fdset -- )
     [ >r t swap munge r> set-nth ] curry each ;
 
-: read-fdset/tasks
+: read-fdset/tasks ( mx -- seq fdset )
     [ reads>> keys ] [ read-fdset>> ] bi ;
 
-: write-fdset/tasks
+: write-fdset/tasks ( mx -- seq fdset )
     [ writes>> keys ] [ write-fdset>> ] bi ;
 
 : max-fd ( assoc -- n )
@@ -44,8 +44,8 @@ TUPLE: select-mx < mx read-fdset write-fdset ;
 
 : init-fdsets ( mx -- nfds read write except )
     [ num-fds ]
-    [ read-fdset/tasks [ init-fdset ] keep ]
-    [ write-fdset/tasks [ init-fdset ] keep ] tri
+    [ read-fdset/tasks [ init-fdset ] [ underlying>> ] bi ]
+    [ write-fdset/tasks [ init-fdset ] [ underlying>> ] bi ] tri
     f ;
 
 M:: select-mx wait-for-events ( ms mx -- )
diff --git a/basis/io/unix/select/tags.txt b/basis/io/unix/select/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/select/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/help/lint/authors.txt b/basis/io/unix/sockets/authors.txt
similarity index 100%
rename from extra/help/lint/authors.txt
rename to basis/io/unix/sockets/authors.txt
diff --git a/extra/io/unix/sockets/secure/secure-tests.factor b/basis/io/unix/sockets/secure/secure-tests.factor
similarity index 93%
rename from extra/io/unix/sockets/secure/secure-tests.factor
rename to basis/io/unix/sockets/secure/secure-tests.factor
index cbda002354..d2a1649686 100644
--- a/extra/io/unix/sockets/secure/secure-tests.factor
+++ b/basis/io/unix/sockets/secure/secure-tests.factor
@@ -9,12 +9,12 @@ concurrency.promises byte-arrays locals calendar io.timeouts ;
 
 [ ] [ <promise> "port" set ] unit-test
 
-: with-test-context
+: with-test-context ( quot -- )
     <secure-config>
-        "resource:extra/openssl/test/server.pem" >>key-file
-        "resource:extra/openssl/test/dh1024.pem" >>dh-file
+        "resource:basis/openssl/test/server.pem" >>key-file
+        "resource:basis/openssl/test/dh1024.pem" >>dh-file
         "password" >>password
-    swap with-secure-context ;
+    swap with-secure-context ; inline
 
 :: server-test ( quot -- )
     [
@@ -28,12 +28,12 @@ concurrency.promises byte-arrays locals calendar io.timeouts ;
         ] with-test-context
     ] "SSL server test" spawn drop ;
 
-: client-test
+: client-test ( -- string )
     <secure-config> [
         "127.0.0.1" "port" get ?promise <inet4> <secure> ascii <client> drop contents
     ] with-secure-context ;
 
-[ ] [ [ class word-name write ] server-test ] unit-test
+[ ] [ [ class name>> write ] server-test ] unit-test
 
 [ "secure" ] [ client-test ] unit-test
 
diff --git a/extra/io/unix/sockets/secure/secure.factor b/basis/io/unix/sockets/secure/secure.factor
similarity index 88%
rename from extra/io/unix/sockets/secure/secure.factor
rename to basis/io/unix/sockets/secure/secure.factor
index 946e0e7be5..a8adedf25a 100755
--- a/extra/io/unix/sockets/secure/secure.factor
+++ b/basis/io/unix/sockets/secure/secure.factor
@@ -6,7 +6,7 @@ continuations destructors
 openssl openssl.libcrypto openssl.libssl
 io.files io.ports io.unix.backend io.unix.sockets
 io.encodings.ascii io.buffers io.sockets io.sockets.secure
-io.timeouts system inspector ;
+io.timeouts system summary ;
 IN: io.unix.sockets.secure
 
 M: ssl-handle handle-fd file>> handle-fd ;
@@ -118,13 +118,27 @@ M: secure (get-local-address) addrspec>> (get-local-address) ;
     dup dup handle>> SSL_connect check-connect-response dup
     [ dupd wait-for-fd do-ssl-connect ] [ 2drop ] if ;
 
+: resume-session ( ssl-handle ssl-session -- )
+    [ [ handle>> ] dip SSL_set_session ssl-error ]
+    [ drop do-ssl-connect ]
+    2bi ;
+
+: begin-session ( ssl-handle addrspec -- )
+    [ drop do-ssl-connect ]
+    [ [ handle>> SSL_get1_session ] dip save-session ]
+    2bi ;
+
+: secure-connection ( ssl-handle addrspec -- )
+    dup get-session [ resume-session ] [ begin-session ] ?if ;
+
 M: secure establish-connection ( client-out remote -- )
-    [ addrspec>> establish-connection ]
+    addrspec>>
+    [ establish-connection ]
     [
-        drop handle>>
-        [ [ do-ssl-connect ] with-timeout ]
-        [ t >>connected drop ]
-        bi
+        [ handle>> ] dip
+        [ [ secure-connection ] curry with-timeout ]
+        [ drop t >>connected drop ]
+        2bi
     ] 2bi ;
 
 M: secure (server) addrspec>> (server) ;
diff --git a/basis/io/unix/sockets/secure/tags.txt b/basis/io/unix/sockets/secure/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/sockets/secure/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/sockets/sockets.factor b/basis/io/unix/sockets/sockets.factor
similarity index 92%
rename from extra/io/unix/sockets/sockets.factor
rename to basis/io/unix/sockets/sockets.factor
index d4059c102a..50952dd217 100755
--- a/extra/io/unix/sockets/sockets.factor
+++ b/basis/io/unix/sockets/sockets.factor
@@ -5,7 +5,7 @@ namespaces threads sequences byte-arrays io.ports
 io.binary io.unix.backend io.streams.duplex
 io.backend io.ports io.files io.files.private
 io.encodings.utf8 math.parser continuations libc combinators
-system accessors qualified destructors unix locals ;
+system accessors qualified destructors unix locals init ;
 
 EXCLUDE: io => read write close ;
 EXCLUDE: io.sockets => accept ;
@@ -13,7 +13,7 @@ EXCLUDE: io.sockets => accept ;
 IN: io.unix.sockets
 
 : socket-fd ( domain type -- fd )
-    0 socket dup io-error <fd> |dispose ;
+    0 socket dup io-error <fd> init-fd |dispose ;
 
 : set-socket-option ( fd level opt -- )
     >r >r handle-fd r> r> 1 <int> "int" heap-size setsockopt io-error ;
@@ -67,7 +67,7 @@ M: object ((client)) ( addrspec -- fd )
 M: object (server) ( addrspec -- handle )
     [
         SOCK_STREAM server-socket-fd
-        dup handle-fd 10 listen io-error
+        dup handle-fd 128 listen io-error
     ] with-destructors ;
 
 : do-accept ( server addrspec -- fd sockaddr )
@@ -77,7 +77,7 @@ M: object (server) ( addrspec -- handle )
 M: object (accept) ( server addrspec -- fd sockaddr )
     2dup do-accept
     {
-        { [ over 0 >= ] [ >r 2nip <fd> r> ] }
+        { [ over 0 >= ] [ >r 2nip <fd> init-fd r> ] }
         { [ err_no EINTR = ] [ 2drop (accept) ] }
         { [ err_no EAGAIN = ] [
             2drop
@@ -96,7 +96,7 @@ SYMBOL: receive-buffer
 
 : packet-size 65536 ; inline
 
-packet-size <byte-array> receive-buffer set-global
+[ packet-size malloc receive-buffer set-global ] "io.unix.sockets" add-init-hook
 
 :: do-receive ( port -- packet sockaddr )
     port addr>> empty-sockaddr/size [| sockaddr len |
@@ -107,7 +107,7 @@ packet-size <byte-array> receive-buffer set-global
         sockaddr ! from
         len <int> ! fromlen
         recvfrom dup 0 >= [
-            receive-buffer get-global swap head sockaddr
+            receive-buffer get-global swap memory>byte-array sockaddr
         ] [
             drop f f
         ] if
diff --git a/extra/io/unix/sockets/summary.txt b/basis/io/unix/sockets/summary.txt
similarity index 100%
rename from extra/io/unix/sockets/summary.txt
rename to basis/io/unix/sockets/summary.txt
diff --git a/basis/io/unix/sockets/tags.txt b/basis/io/unix/sockets/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/sockets/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/summary.txt b/basis/io/unix/summary.txt
similarity index 100%
rename from extra/io/unix/summary.txt
rename to basis/io/unix/summary.txt
diff --git a/basis/io/unix/tags.txt b/basis/io/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/unix/unix-tests.factor b/basis/io/unix/unix-tests.factor
similarity index 100%
rename from extra/io/unix/unix-tests.factor
rename to basis/io/unix/unix-tests.factor
diff --git a/basis/io/unix/unix.factor b/basis/io/unix/unix.factor
new file mode 100755
index 0000000000..93b5fa620e
--- /dev/null
+++ b/basis/io/unix/unix.factor
@@ -0,0 +1,4 @@
+USING: accessors system words sequences vocabs.loader
+io.unix.backend io.unix.files ;
+
+"io.unix." os name>> append require
diff --git a/extra/io/windows/authors.txt b/basis/io/windows/authors.txt
similarity index 100%
rename from extra/io/windows/authors.txt
rename to basis/io/windows/authors.txt
diff --git a/extra/io/windows/files/files.factor b/basis/io/windows/files/files.factor
similarity index 95%
rename from extra/io/windows/files/files.factor
rename to basis/io/windows/files/files.factor
index ef3db0dcd1..5698ab6cf2 100755
--- a/extra/io/windows/files/files.factor
+++ b/basis/io/windows/files/files.factor
@@ -4,13 +4,12 @@ USING: alien.c-types io.binary io.backend io.files io.buffers
 io.windows kernel math splitting
 windows windows.kernel32 windows.time calendar combinators
 math.functions sequences namespaces words symbols system
-combinators.lib io.ports destructors accessors
-math.bitfields math.bitfields.lib ;
+io.ports destructors accessors math.bitwise ;
 IN: io.windows.files
 
 : open-file ( path access-mode create-mode flags -- handle )
     [
-        >r >r share-mode security-attributes-inherit r> r>
+        >r >r share-mode default-security-attributes r> r>
         CreateFile-flags f CreateFile opened-file
     ] with-destructors ;
 
@@ -61,6 +60,7 @@ C: <FileArgs> FileArgs
 
 : make-FileArgs ( port -- <FileArgs> )
     {
+        [ handle>> check-disposed ]
         [ handle>> handle>> ]
         [ buffer>> ]
         [ buffer>> buffer-length ]
@@ -122,7 +122,7 @@ SYMBOLS: +read-only+ +hidden+ +system+
 +not-content-indexed+ +encrypted+ ;
 
 : win32-file-attribute ( n attr symbol -- n )
-    >r dupd mask? [ r> , ] [ r> drop ] if ;
+    >r dupd mask? r> swap [ , ] [ drop ] if ;
 
 : win32-file-attributes ( n -- seq )
     [
@@ -146,7 +146,7 @@ SYMBOLS: +read-only+ +hidden+ +system+
 : win32-file-type ( n -- symbol )
     FILE_ATTRIBUTE_DIRECTORY mask? +directory+ +regular-file+ ? ;
 
-: WIN32_FIND_DATA>file-info
+: WIN32_FIND_DATA>file-info ( WIN32_FIND_DATA -- file-info )
     {
         [ WIN32_FIND_DATA-dwFileAttributes win32-file-type ]
         [
@@ -167,7 +167,7 @@ SYMBOLS: +read-only+ +hidden+ +system+
         FindClose win32-error=0/f
     ] keep ;
 
-: BY_HANDLE_FILE_INFORMATION>file-info
+: BY_HANDLE_FILE_INFORMATION>file-info ( HANDLE_FILE_INFORMATION -- file-info )
     {
         [ BY_HANDLE_FILE_INFORMATION-dwFileAttributes win32-file-type ]
         [
@@ -216,11 +216,11 @@ M: winnt link-info ( path -- info )
         "FILETIME" <c-object>
         "FILETIME" <c-object>
         [ GetFileTime win32-error=0/f ] 3keep
-        [ FILETIME>timestamp >local-time ] 3apply
+        [ FILETIME>timestamp >local-time ] tri@
     ] with-destructors ;
 
 : (set-file-times) ( handle timestamp/f timestamp/f timestamp/f -- )
-    [ timestamp>FILETIME ] 3apply
+    [ timestamp>FILETIME ] tri@
     SetFileTime win32-error=0/f ;
 
 : set-file-times ( path timestamp/f timestamp/f timestamp/f -- )
diff --git a/basis/io/windows/files/tags.txt b/basis/io/windows/files/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/files/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/windows/files/unique/tags.txt b/basis/io/windows/files/unique/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/files/unique/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/files/unique/unique.factor b/basis/io/windows/files/unique/unique.factor
similarity index 100%
rename from extra/io/windows/files/unique/unique.factor
rename to basis/io/windows/files/unique/unique.factor
diff --git a/extra/io/windows/ce/sockets/authors.txt b/basis/io/windows/launcher/authors.txt
similarity index 100%
rename from extra/io/windows/ce/sockets/authors.txt
rename to basis/io/windows/launcher/authors.txt
diff --git a/extra/io/windows/launcher/launcher-tests.factor b/basis/io/windows/launcher/launcher-tests.factor
similarity index 100%
rename from extra/io/windows/launcher/launcher-tests.factor
rename to basis/io/windows/launcher/launcher-tests.factor
diff --git a/extra/io/windows/launcher/launcher.factor b/basis/io/windows/launcher/launcher.factor
similarity index 88%
rename from extra/io/windows/launcher/launcher.factor
rename to basis/io/windows/launcher/launcher.factor
index 1cfb91d716..eabd044bb4 100755
--- a/extra/io/windows/launcher/launcher.factor
+++ b/basis/io/windows/launcher/launcher.factor
@@ -6,7 +6,7 @@ windows.types math windows.kernel32
 namespaces io.launcher kernel sequences windows.errors
 splitting system threads init strings combinators
 io.backend accessors concurrency.flags io.files assocs
-io.files.private windows destructors classes.tuple.lib ;
+io.files.private windows destructors ;
 IN: io.windows.launcher
 
 TUPLE: CreateProcess-args
@@ -30,14 +30,24 @@ TUPLE: CreateProcess-args
     0 >>dwCreateFlags ;
 
 : call-CreateProcess ( CreateProcess-args -- )
-    CreateProcess-args >tuple< CreateProcess win32-error=0/f ;
+    {
+        [ lpApplicationName>> ]
+        [ lpCommandLine>> ]
+        [ lpProcessAttributes>> ]
+        [ lpThreadAttributes>> ]
+        [ bInheritHandles>> ]
+        [ dwCreateFlags>> ]
+        [ lpEnvironment>> ]
+        [ lpCurrentDirectory>> ]
+        [ lpStartupInfo>> ]
+        [ lpProcessInformation>> ]
+    } cleave
+    CreateProcess win32-error=0/f ;
 
 : count-trailing-backslashes ( str n -- str n )
-    >r "\\" ?tail [
-        r> 1+ count-trailing-backslashes
-    ] [
-        r>
-    ] if ;
+    >r "\\" ?tail r> swap [
+        1+ count-trailing-backslashes
+    ] when ;
 
 : fix-trailing-backslashes ( str -- str' )
     0 count-trailing-backslashes
@@ -141,13 +151,13 @@ M: windows kill-process* ( handle -- )
     swap win32-error=0/f ;
 
 : process-exited ( process -- )
-    dup process-handle exit-code
-    over process-handle dispose-process
+    dup handle>> exit-code
+    over handle>> dispose-process
     notify-exit ;
 
 M: windows wait-for-processes ( -- ? )
     processes get keys dup
-    [ process-handle PROCESS_INFORMATION-hProcess ] map
+    [ handle>> PROCESS_INFORMATION-hProcess ] map
     dup length swap >c-void*-array 0 0
     WaitForMultipleObjects
     dup HEX: ffffffff = [ win32-error ] when
diff --git a/basis/io/windows/launcher/tags.txt b/basis/io/windows/launcher/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/launcher/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/farkup/authors.txt b/basis/io/windows/mmap/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/farkup/authors.txt
rename to basis/io/windows/mmap/authors.txt
diff --git a/extra/io/windows/mmap/mmap-tests.factor b/basis/io/windows/mmap/mmap-tests.factor
similarity index 100%
rename from extra/io/windows/mmap/mmap-tests.factor
rename to basis/io/windows/mmap/mmap-tests.factor
diff --git a/extra/io/windows/mmap/mmap.factor b/basis/io/windows/mmap/mmap.factor
similarity index 82%
rename from extra/io/windows/mmap/mmap.factor
rename to basis/io/windows/mmap/mmap.factor
index 72dfca9df3..e5b0d10f2f 100755
--- a/extra/io/windows/mmap/mmap.factor
+++ b/basis/io/windows/mmap/mmap.factor
@@ -1,14 +1,14 @@
 USING: alien alien.c-types arrays destructors generic io.mmap
 io.ports io.windows io.windows.files io.windows.privileges
-kernel libc math math.bitfields namespaces quotations sequences
+kernel libc math math.bitwise namespaces quotations sequences
 windows windows.advapi32 windows.kernel32 io.backend system
 accessors locals ;
 IN: io.windows.mmap
 
-: create-file-mapping
+: create-file-mapping ( hFile lpAttributes flProtect dwMaximumSizeHigh dwMaximumSizeLow lpName -- HANDLE )
     CreateFileMapping [ win32-error=0/f ] keep <win32-handle> ;
 
-: map-view-of-file
+: map-view-of-file ( hFileMappingObject dwDesiredAccess dwFileOffsetHigh dwFileOffsetLow dwNumberOfBytesToMap -- HANDLE )
     MapViewOfFile [ win32-error=0/f ] keep ;
 
 :: mmap-open ( path length access-mode create-mode protect access -- handle handle address )
diff --git a/basis/io/windows/mmap/tags.txt b/basis/io/windows/mmap/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/mmap/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/authors.txt b/basis/io/windows/nt/authors.txt
similarity index 100%
rename from extra/io/windows/nt/authors.txt
rename to basis/io/windows/nt/authors.txt
diff --git a/extra/io/windows/ce/backend/authors.txt b/basis/io/windows/nt/backend/authors.txt
similarity index 100%
rename from extra/io/windows/ce/backend/authors.txt
rename to basis/io/windows/nt/backend/authors.txt
diff --git a/extra/io/windows/nt/backend/backend.factor b/basis/io/windows/nt/backend/backend.factor
similarity index 94%
rename from extra/io/windows/nt/backend/backend.factor
rename to basis/io/windows/nt/backend/backend.factor
index 1a7462f304..7fbc1dbcf9 100755
--- a/extra/io/windows/nt/backend/backend.factor
+++ b/basis/io/windows/nt/backend/backend.factor
@@ -1,9 +1,8 @@
 USING: alien alien.c-types arrays assocs combinators
 continuations destructors io io.backend io.ports io.timeouts
 io.windows io.windows.files libc kernel math namespaces
-sequences threads classes.tuple.lib windows windows.errors
-windows.kernel32 strings splitting io.files
-io.buffers qualified ascii combinators.lib system
+sequences threads windows windows.errors windows.kernel32
+strings splitting io.files io.buffers qualified ascii system
 accessors locals ;
 QUALIFIED: windows.winsock
 IN: io.windows.nt.backend
@@ -74,7 +73,7 @@ M: winnt add-completion ( win32-handle -- )
     ] if ;
 
 M: win32-handle cancel-operation
-    handle>> CancelIo drop ;
+    [ check-disposed ] [ handle>> CancelIo drop ] bi ;
 
 M: winnt io-multiplex ( ms -- )
     handle-overlapped [ 0 io-multiplex ] when ;
diff --git a/basis/io/windows/nt/backend/tags.txt b/basis/io/windows/nt/backend/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/backend/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/backend/authors.txt b/basis/io/windows/nt/files/authors.txt
similarity index 100%
rename from extra/io/windows/nt/backend/authors.txt
rename to basis/io/windows/nt/files/authors.txt
diff --git a/extra/io/windows/nt/files/files-tests.factor b/basis/io/windows/nt/files/files-tests.factor
similarity index 92%
rename from extra/io/windows/nt/files/files-tests.factor
rename to basis/io/windows/nt/files/files-tests.factor
index 0fa4b4151c..830861eba0 100755
--- a/extra/io/windows/nt/files/files-tests.factor
+++ b/basis/io/windows/nt/files/files-tests.factor
@@ -21,8 +21,8 @@ IN: io.windows.nt.files.tests
 [ t ] [ "\\\\" root-directory? ] unit-test
 [ t ] [ "/" root-directory? ] unit-test
 [ t ] [ "//" root-directory? ] unit-test
-[ t ] [ "c:\\" right-trim-separators root-directory? ] unit-test
-[ t ] [ "Z:\\" right-trim-separators root-directory? ] unit-test
+[ t ] [ "c:\\" trim-right-separators root-directory? ] unit-test
+[ t ] [ "Z:\\" trim-right-separators root-directory? ] unit-test
 [ f ] [ "c:\\foo" root-directory? ] unit-test
 [ f ] [ "." root-directory? ] unit-test
 [ f ] [ ".." root-directory? ] unit-test
diff --git a/extra/io/windows/nt/files/files.factor b/basis/io/windows/nt/files/files.factor
similarity index 74%
rename from extra/io/windows/nt/files/files.factor
rename to basis/io/windows/nt/files/files.factor
index 67161716a3..5fbacfa325 100755
--- a/extra/io/windows/nt/files/files.factor
+++ b/basis/io/windows/nt/files/files.factor
@@ -3,8 +3,8 @@ io.timeouts io.ports io.windows io.windows.files
 io.windows.nt.backend windows windows.kernel32
 kernel libc math threads system
 alien.c-types alien.arrays alien.strings sequences combinators
-combinators.lib sequences.lib ascii splitting alien strings
-assocs namespaces io.files.private accessors ;
+combinators.short-circuit ascii splitting alien strings
+assocs namespaces io.files.private accessors tr ;
 IN: io.windows.nt.files
 
 M: winnt cwd
@@ -22,30 +22,29 @@ M: winnt root-directory? ( path -- ? )
     {
         { [ dup empty? ] [ f ] }
         { [ dup [ path-separator? ] all? ] [ t ] }
-        { [ dup right-trim-separators
-          { [ dup length 2 = ] [ dup second CHAR: : = ] } && nip ] [
-            t
-        ] }
+        { [ dup trim-right-separators { [ length 2 = ] [ second CHAR: : = ] } 1&& ] [ t ] }
         [ f ]
     } cond nip ;
 
 ERROR: not-absolute-path ;
 
 : root-directory ( string -- string' )
-    {
-        [ dup length 2 >= ]
-        [ dup second CHAR: : = ]
-        [ dup first Letter? ]
-    } && [ 2 head ] [ not-absolute-path ] if ;
+    dup {
+        [ length 2 >= ]
+        [ second CHAR: : = ]
+        [ first Letter? ]
+    } 1&& [ 2 head ] [ not-absolute-path ] if ;
 
 : prepend-prefix ( string -- string' )
     dup unicode-prefix head? [
         unicode-prefix prepend
     ] unless ;
 
+TR: normalize-separators "/" "\\" ;
+
 M: winnt normalize-path ( string -- string' )
     (normalize-path)
-    { { CHAR: / CHAR: \\ } } substitute
+    normalize-separators
     prepend-prefix ;
 
 M: winnt CreateFile-flags ( DWORD -- DWORD )
diff --git a/basis/io/windows/nt/files/tags.txt b/basis/io/windows/nt/files/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/files/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/files/authors.txt b/basis/io/windows/nt/launcher/authors.txt
similarity index 100%
rename from extra/io/windows/nt/files/authors.txt
rename to basis/io/windows/nt/launcher/authors.txt
diff --git a/extra/io/windows/nt/launcher/launcher-tests.factor b/basis/io/windows/nt/launcher/launcher-tests.factor
similarity index 84%
rename from extra/io/windows/nt/launcher/launcher-tests.factor
rename to basis/io/windows/nt/launcher/launcher-tests.factor
index 254f845c48..d5e77caa19 100755
--- a/extra/io/windows/nt/launcher/launcher-tests.factor
+++ b/basis/io/windows/nt/launcher/launcher-tests.factor
@@ -1,7 +1,7 @@
 IN: io.windows.launcher.nt.tests
 USING: io.launcher tools.test calendar accessors
 namespaces kernel system arrays io io.files io.encodings.ascii
-sequences parser assocs hashtables math continuations ;
+sequences parser assocs hashtables math continuations eval ;
 
 [ ] [
     <process>
@@ -41,7 +41,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "stderr.factor" 3array >>command
             "out.txt" temp-file >>stdout
@@ -59,7 +59,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "stderr.factor" 3array >>command
             "out.txt" temp-file >>stdout
@@ -73,7 +73,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ "output" ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "stderr.factor" 3array >>command
             "err2.txt" temp-file >>stderr
@@ -86,7 +86,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ t ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "env.factor" 3array >>command
         ascii <process-reader> contents
@@ -96,7 +96,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ t ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "env.factor" 3array >>command
             +replace-environment+ >>environment-mode
@@ -108,7 +108,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ "B" ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "env.factor" 3array >>command
             { { "A" "B" } } >>environment
@@ -119,7 +119,7 @@ sequences parser assocs hashtables math continuations ;
 ] unit-test
 
 [ f ] [
-    "resource:extra/io/windows/nt/launcher/test" [
+    "resource:basis/io/windows/nt/launcher/test" [
         <process>
             vm "-script" "env.factor" 3array >>command
             { { "HOME" "XXX" } } >>environment
@@ -145,7 +145,7 @@ sequences parser assocs hashtables math continuations ;
 
 [ "Hello appender\r\nHello appender\r\n" ] [
     2 [
-        "resource:extra/io/windows/nt/launcher/test" [
+        "resource:basis/io/windows/nt/launcher/test" [
             <process>
                 vm "-script" "append.factor" 3array >>command
                 "append-test" temp-file <appender> >>stdout
diff --git a/extra/io/windows/nt/launcher/launcher.factor b/basis/io/windows/nt/launcher/launcher.factor
similarity index 93%
rename from extra/io/windows/nt/launcher/launcher.factor
rename to basis/io/windows/nt/launcher/launcher.factor
index 6c86b53049..ff11c456ca 100755
--- a/extra/io/windows/nt/launcher/launcher.factor
+++ b/basis/io/windows/nt/launcher/launcher.factor
@@ -46,7 +46,7 @@ IN: io.windows.nt.launcher
     path normalize-path
     access-mode
     share-mode
-    security-attributes-inherit
+    default-security-attributes
     create-mode
     FILE_ATTRIBUTE_NORMAL ! flags and attributes
     f ! template file
@@ -58,11 +58,8 @@ IN: io.windows.nt.launcher
     redirect-file
     dup 0 FILE_END set-file-pointer ;
 
-: set-inherit ( handle ? -- )
-    >r HANDLE_FLAG_INHERIT r> >BOOLEAN SetHandleInformation win32-error=0/f ;
-
 : redirect-handle ( handle access-mode create-mode -- handle )
-    2drop handle>> duplicate-handle dup t set-inherit ;
+    2drop handle>> duplicate-handle ;
 
 : redirect-stream ( stream access-mode create-mode -- handle )
     >r >r underlying-handle handle>> r> r> redirect-handle ;
@@ -75,7 +72,8 @@ IN: io.windows.nt.launcher
         { [ pick appender? ] [ redirect-append ] }
         { [ pick win32-file? ] [ redirect-handle ] }
         [ redirect-stream ]
-    } cond ;
+    } cond
+    dup [ dup t set-inherit ] when ;
 
 : redirect-stdout ( process args -- handle )
     drop
diff --git a/basis/io/windows/nt/launcher/tags.txt b/basis/io/windows/nt/launcher/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/launcher/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/launcher/test/append.factor b/basis/io/windows/nt/launcher/test/append.factor
similarity index 100%
rename from extra/io/windows/nt/launcher/test/append.factor
rename to basis/io/windows/nt/launcher/test/append.factor
diff --git a/extra/io/windows/nt/launcher/test/env.factor b/basis/io/windows/nt/launcher/test/env.factor
similarity index 100%
rename from extra/io/windows/nt/launcher/test/env.factor
rename to basis/io/windows/nt/launcher/test/env.factor
diff --git a/extra/io/windows/nt/launcher/test/stderr.factor b/basis/io/windows/nt/launcher/test/stderr.factor
similarity index 100%
rename from extra/io/windows/nt/launcher/test/stderr.factor
rename to basis/io/windows/nt/launcher/test/stderr.factor
diff --git a/extra/furnace/sessions/authors.txt b/basis/io/windows/nt/monitors/authors.txt
similarity index 100%
rename from extra/furnace/sessions/authors.txt
rename to basis/io/windows/nt/monitors/authors.txt
diff --git a/extra/io/windows/nt/monitors/monitors-tests.factor b/basis/io/windows/nt/monitors/monitors-tests.factor
similarity index 100%
rename from extra/io/windows/nt/monitors/monitors-tests.factor
rename to basis/io/windows/nt/monitors/monitors-tests.factor
diff --git a/extra/io/windows/nt/monitors/monitors.factor b/basis/io/windows/nt/monitors/monitors.factor
similarity index 98%
rename from extra/io/windows/nt/monitors/monitors.factor
rename to basis/io/windows/nt/monitors/monitors.factor
index fa4d19a46e..54cb3b1104 100755
--- a/extra/io/windows/nt/monitors/monitors.factor
+++ b/basis/io/windows/nt/monitors/monitors.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types libc destructors locals
 kernel math assocs namespaces continuations sequences hashtables
-sorting arrays combinators math.bitfields strings system
+sorting arrays combinators math.bitwise strings system
 accessors threads splitting
 io.backend io.windows io.windows.nt.backend io.windows.nt.files
 io.monitors io.ports io.buffers io.files io.timeouts io
diff --git a/basis/io/windows/nt/monitors/tags.txt b/basis/io/windows/nt/monitors/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/monitors/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/io/windows/nt/nt.factor b/basis/io/windows/nt/nt.factor
new file mode 100755
index 0000000000..efde4f4035
--- /dev/null
+++ b/basis/io/windows/nt/nt.factor
@@ -0,0 +1,7 @@
+! Copyright (C) 2004, 2008 Mackenzie Straight, Doug Coleman,
+! Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: vocabs.loader io.windows io.windows.nt.backend
+io.windows.nt.files io.windows.files io.backend system ;
+
+winnt set-io-backend
diff --git a/extra/help/markup/authors.txt b/basis/io/windows/nt/pipes/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/help/markup/authors.txt
rename to basis/io/windows/nt/pipes/authors.txt
diff --git a/extra/io/windows/nt/pipes/pipes.factor b/basis/io/windows/nt/pipes/pipes.factor
similarity index 89%
rename from extra/io/windows/nt/pipes/pipes.factor
rename to basis/io/windows/nt/pipes/pipes.factor
index 97c2e49627..aa52152b75 100755
--- a/extra/io/windows/nt/pipes/pipes.factor
+++ b/basis/io/windows/nt/pipes/pipes.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007, 2008 Doug Coleman, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types arrays destructors io io.windows libc
-windows.types math.bitfields windows.kernel32 windows namespaces
+windows.types math.bitwise windows.kernel32 windows namespaces
 kernel sequences windows.errors assocs math.parser system random
 combinators accessors io.pipes io.ports ;
 IN: io.windows.nt.pipes
@@ -16,13 +16,13 @@ IN: io.windows.nt.pipes
     4096
     4096
     0
-    security-attributes-inherit
+    default-security-attributes
     CreateNamedPipe opened-file ;
 
 : open-other-end ( name -- handle )
     GENERIC_WRITE
     { FILE_SHARE_READ FILE_SHARE_WRITE } flags
-    security-attributes-inherit
+    default-security-attributes
     OPEN_EXISTING
     FILE_FLAG_OVERLAPPED
     f
diff --git a/basis/io/windows/nt/pipes/tags.txt b/basis/io/windows/nt/pipes/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/pipes/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/privileges/privileges.factor b/basis/io/windows/nt/privileges/privileges.factor
similarity index 92%
rename from extra/io/windows/nt/privileges/privileges.factor
rename to basis/io/windows/nt/privileges/privileges.factor
index 007d05f9af..8418d09a5e 100755
--- a/extra/io/windows/nt/privileges/privileges.factor
+++ b/basis/io/windows/nt/privileges/privileges.factor
@@ -1,6 +1,6 @@
 USING: alien alien.c-types alien.syntax arrays continuations
 destructors generic io.mmap io.ports io.windows io.windows.files
-kernel libc math math.bitfields namespaces quotations sequences windows
+kernel libc math math.bitwise namespaces quotations sequences windows
 windows.advapi32 windows.kernel32 io.backend system accessors
 io.windows.privileges ;
 IN: io.windows.nt.privileges
diff --git a/basis/io/windows/nt/privileges/tags.txt b/basis/io/windows/nt/privileges/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/privileges/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/launcher/authors.txt b/basis/io/windows/nt/sockets/authors.txt
similarity index 100%
rename from extra/io/windows/nt/launcher/authors.txt
rename to basis/io/windows/nt/sockets/authors.txt
diff --git a/basis/io/windows/nt/sockets/sockets.factor b/basis/io/windows/nt/sockets/sockets.factor
new file mode 100755
index 0000000000..41c5e88f5f
--- /dev/null
+++ b/basis/io/windows/nt/sockets/sockets.factor
@@ -0,0 +1,216 @@
+USING: alien alien.accessors alien.c-types byte-arrays
+continuations destructors io.ports io.timeouts io.sockets
+io.sockets io namespaces io.streams.duplex io.windows
+io.windows.sockets io.windows.nt.backend windows.winsock kernel
+libc math sequences threads system combinators accessors ;
+IN: io.windows.nt.sockets
+
+: malloc-int ( object -- object )
+    "int" heap-size malloc tuck 0 set-alien-signed-4 ; inline
+
+M: winnt WSASocket-flags ( -- DWORD )
+    WSA_FLAG_OVERLAPPED ;
+
+: get-ConnectEx-ptr ( socket -- void* )
+    SIO_GET_EXTENSION_FUNCTION_POINTER
+    WSAID_CONNECTEX
+    "GUID" heap-size
+    "void*" <c-object>
+    [
+        "void*" heap-size
+        "DWORD" <c-object>
+        f
+        f
+        WSAIoctl SOCKET_ERROR = [
+            winsock-error-string throw
+        ] when
+    ] keep *void* ;
+
+TUPLE: ConnectEx-args port
+    s name namelen lpSendBuffer dwSendDataLength
+    lpdwBytesSent lpOverlapped ptr ;
+
+: wait-for-socket ( args -- n )
+    [ lpOverlapped>> ] [ port>> ] bi twiddle-thumbs ; inline
+
+: <ConnectEx-args> ( sockaddr size -- ConnectEx )
+    ConnectEx-args new
+        swap >>namelen
+        swap >>name
+        f >>lpSendBuffer
+        0 >>dwSendDataLength
+        f >>lpdwBytesSent
+        (make-overlapped) >>lpOverlapped ; inline
+
+: call-ConnectEx ( ConnectEx -- )
+    {
+        [ s>> ]
+        [ name>> ]
+        [ namelen>> ]
+        [ lpSendBuffer>> ]
+        [ dwSendDataLength>> ]
+        [ lpdwBytesSent>> ]
+        [ lpOverlapped>> ]
+        [ ptr>> ]
+    } cleave
+    "int"
+    { "SOCKET" "sockaddr_in*" "int" "PVOID" "DWORD" "LPDWORD" "void*" }
+    "stdcall" alien-indirect drop
+    winsock-error-string [ throw ] when* ; inline
+
+M: object establish-connection ( client-out remote -- )
+    make-sockaddr/size <ConnectEx-args>
+        swap >>port
+        dup port>> handle>> handle>> >>s
+        dup s>> get-ConnectEx-ptr >>ptr
+        dup call-ConnectEx
+        wait-for-socket drop ;
+
+TUPLE: AcceptEx-args port
+    sListenSocket sAcceptSocket lpOutputBuffer dwReceiveDataLength
+    dwLocalAddressLength dwRemoteAddressLength lpdwBytesReceived lpOverlapped ;
+
+: init-accept-buffer ( addr AcceptEx -- )
+    swap sockaddr-type heap-size 16 +
+        [ >>dwLocalAddressLength ] [ >>dwRemoteAddressLength ] bi
+        dup dwLocalAddressLength>> 2 * malloc &free >>lpOutputBuffer
+        drop ; inline
+
+: <AcceptEx-args> ( server addr -- AcceptEx )
+    AcceptEx-args new
+        2dup init-accept-buffer
+        swap SOCK_STREAM open-socket |dispose handle>> >>sAcceptSocket
+        over handle>> handle>> >>sListenSocket
+        swap >>port
+        0 >>dwReceiveDataLength
+        f >>lpdwBytesReceived
+        (make-overlapped) >>lpOverlapped ; inline
+
+: call-AcceptEx ( AcceptEx -- )
+    {
+        [ sListenSocket>> ]
+        [ sAcceptSocket>> ]
+        [ lpOutputBuffer>> ]
+        [ dwReceiveDataLength>> ]
+        [ dwLocalAddressLength>> ]
+        [ dwRemoteAddressLength>> ]
+        [ lpdwBytesReceived>> ]
+        [ lpOverlapped>> ]
+    } cleave AcceptEx drop
+    winsock-error-string [ throw ] when* ; inline
+
+: extract-remote-address ( AcceptEx -- sockaddr )
+    {
+        [ lpOutputBuffer>> ]
+        [ dwReceiveDataLength>> ]
+        [ dwLocalAddressLength>> ]
+        [ dwRemoteAddressLength>> ]
+    } cleave
+    f <void*>
+    0 <int>
+    f <void*>
+    [ 0 <int> GetAcceptExSockaddrs ] keep *void* ; inline
+
+M: object (accept) ( server addr -- handle sockaddr )
+    [
+        <AcceptEx-args>
+        {
+            [ call-AcceptEx ]
+            [ wait-for-socket drop ]
+            [ sAcceptSocket>> <win32-socket> ]
+            [ extract-remote-address ]
+        } cleave
+    ] with-destructors ;
+
+TUPLE: WSARecvFrom-args port
+       s lpBuffers dwBufferCount lpNumberOfBytesRecvd
+       lpFlags lpFrom lpFromLen lpOverlapped lpCompletionRoutine ;
+
+: make-receive-buffer ( -- WSABUF )
+    "WSABUF" malloc-object &free
+    default-buffer-size get over set-WSABUF-len
+    default-buffer-size get malloc &free over set-WSABUF-buf ; inline
+
+: <WSARecvFrom-args> ( datagram -- WSARecvFrom )
+    WSARecvFrom-args new
+        swap >>port
+        dup port>> handle>> handle>> >>s
+        dup port>> addr>> sockaddr-type heap-size
+            [ malloc &free >>lpFrom ]
+            [ malloc-int &free >>lpFromLen ] bi
+        make-receive-buffer >>lpBuffers
+        1 >>dwBufferCount
+        0 malloc-int &free >>lpFlags
+        0 malloc-int &free >>lpNumberOfBytesRecvd
+        (make-overlapped) >>lpOverlapped ; inline
+
+: call-WSARecvFrom ( WSARecvFrom -- )
+    {
+        [ s>> ]
+        [ lpBuffers>> ]
+        [ dwBufferCount>> ]
+        [ lpNumberOfBytesRecvd>> ]
+        [ lpFlags>> ]
+        [ lpFrom>> ]
+        [ lpFromLen>> ]
+        [ lpOverlapped>> ]
+        [ lpCompletionRoutine>> ]
+    } cleave WSARecvFrom socket-error* ; inline
+
+: parse-WSARecvFrom ( n WSARecvFrom -- packet sockaddr )
+    [ lpBuffers>> WSABUF-buf swap memory>byte-array ]
+    [ [ lpFrom>> ] [ lpFromLen>> *int ] bi memory>byte-array ] bi ; inline
+
+M: winnt (receive) ( datagram -- packet addrspec )
+    [
+        <WSARecvFrom-args>
+        [ call-WSARecvFrom ]
+        [ wait-for-socket ]
+        [ parse-WSARecvFrom ]
+        tri
+    ] with-destructors ;
+
+TUPLE: WSASendTo-args port
+       s lpBuffers dwBufferCount lpNumberOfBytesSent
+       dwFlags lpTo iToLen lpOverlapped lpCompletionRoutine ;
+
+: make-send-buffer ( packet -- WSABUF )
+    "WSABUF" malloc-object &free
+    [ >r malloc-byte-array &free r> set-WSABUF-buf ]
+    [ >r length r> set-WSABUF-len ]
+    [ nip ]
+    2tri ; inline
+
+: <WSASendTo-args> ( packet addrspec datagram -- WSASendTo )
+    WSASendTo-args new
+        swap >>port
+        dup port>> handle>> handle>> >>s
+        swap make-sockaddr/size
+            >r malloc-byte-array &free
+            r> [ >>lpTo ] [ >>iToLen ] bi*
+        swap make-send-buffer >>lpBuffers
+        1 >>dwBufferCount
+        0 >>dwFlags
+        0 <uint> >>lpNumberOfBytesSent
+        (make-overlapped) >>lpOverlapped ; inline
+
+: call-WSASendTo ( WSASendTo -- )
+    {
+        [ s>> ]
+        [ lpBuffers>> ]
+        [ dwBufferCount>> ]
+        [ lpNumberOfBytesSent>> ]
+        [ dwFlags>> ]
+        [ lpTo>> ]
+        [ iToLen>> ]
+        [ lpOverlapped>> ]
+        [ lpCompletionRoutine>> ]
+    } cleave WSASendTo socket-error* ; inline
+
+M: winnt (send) ( packet addrspec datagram -- )
+    [
+        <WSASendTo-args>
+        [ call-WSASendTo ]
+        [ wait-for-socket drop ]
+        bi
+    ] with-destructors ;
diff --git a/basis/io/windows/nt/sockets/tags.txt b/basis/io/windows/nt/sockets/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/sockets/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/summary.txt b/basis/io/windows/nt/summary.txt
similarity index 100%
rename from extra/io/windows/nt/summary.txt
rename to basis/io/windows/nt/summary.txt
diff --git a/basis/io/windows/nt/tags.txt b/basis/io/windows/nt/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/nt/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/privileges/privileges.factor b/basis/io/windows/privileges/privileges.factor
similarity index 50%
rename from extra/io/windows/privileges/privileges.factor
rename to basis/io/windows/privileges/privileges.factor
index 144c799912..e169bdf12f 100755
--- a/extra/io/windows/privileges/privileges.factor
+++ b/basis/io/windows/privileges/privileges.factor
@@ -1,4 +1,5 @@
-USING: io.backend kernel continuations sequences ;
+USING: io.backend kernel continuations sequences
+system vocabs.loader combinators ;
 IN: io.windows.privileges
 
 HOOK: set-privilege io-backend ( name ? -- ) inline
@@ -6,3 +7,8 @@ HOOK: set-privilege io-backend ( name ? -- ) inline
 : with-privileges ( seq quot -- )
     over [ [ t set-privilege ] each ] curry compose
     swap [ [ f set-privilege ] each ] curry [ ] cleanup ; inline
+
+{
+    { [ os winnt? ] [ "io.windows.nt.privileges" require ] }
+    { [ os wince? ] [ "io.windows.ce.privileges" require ] }
+} cond
diff --git a/basis/io/windows/privileges/tags.txt b/basis/io/windows/privileges/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/privileges/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/sockets/sockets.factor b/basis/io/windows/sockets/sockets.factor
similarity index 94%
rename from extra/io/windows/sockets/sockets.factor
rename to basis/io/windows/sockets/sockets.factor
index 359776d639..d9ab10d5e3 100755
--- a/extra/io/windows/sockets/sockets.factor
+++ b/basis/io/windows/sockets/sockets.factor
@@ -7,8 +7,7 @@ HOOK: WSASocket-flags io-backend ( -- DWORD )
 TUPLE: win32-socket < win32-file ;
 
 : <win32-socket> ( handle -- win32-socket )
-    win32-socket new
-        swap >>handle ;
+    win32-socket new-win32-handle ;
 
 M: win32-socket dispose ( stream -- )
     handle>> closesocket drop ;
diff --git a/basis/io/windows/sockets/tags.txt b/basis/io/windows/sockets/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/io/windows/sockets/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/summary.txt b/basis/io/windows/summary.txt
similarity index 100%
rename from extra/io/windows/summary.txt
rename to basis/io/windows/summary.txt
diff --git a/basis/io/windows/tags.txt b/basis/io/windows/tags.txt
new file mode 100644
index 0000000000..02ec70f741
--- /dev/null
+++ b/basis/io/windows/tags.txt
@@ -0,0 +1,2 @@
+unportable
+windows
diff --git a/extra/io/windows/windows.factor b/basis/io/windows/windows.factor
similarity index 87%
rename from extra/io/windows/windows.factor
rename to basis/io/windows/windows.factor
index 5e10389c44..6f6c29fc55 100755
--- a/extra/io/windows/windows.factor
+++ b/basis/io/windows/windows.factor
@@ -5,13 +5,16 @@ io.buffers io.files io.ports io.sockets io.binary
 io.sockets io.timeouts windows.errors strings
 kernel math namespaces sequences windows windows.kernel32
 windows.shell32 windows.types windows.winsock splitting
-continuations math.bitfields system accessors ;
+continuations math.bitwise system accessors ;
 IN: io.windows
 
+: set-inherit ( handle ? -- )
+    >r HANDLE_FLAG_INHERIT r> >BOOLEAN SetHandleInformation win32-error=0/f ;
+
 TUPLE: win32-handle handle disposed ;
 
 : new-win32-handle ( handle class -- win32-handle )
-    new swap >>handle ;
+    new swap [ >>handle ] [ f set-inherit ] bi ;
 
 : <win32-handle> ( handle -- win32-handle )
     win32-handle new-win32-handle ;
@@ -49,7 +52,3 @@ HOOK: add-completion io-backend ( port -- )
     "SECURITY_ATTRIBUTES" <c-object>
     "SECURITY_ATTRIBUTES" heap-size
     over set-SECURITY_ATTRIBUTES-nLength ;
-
-: security-attributes-inherit ( -- obj )
-    default-security-attributes
-    TRUE over set-SECURITY_ATTRIBUTES-bInheritHandle ; foldable
diff --git a/extra/concurrency/distributed/authors.txt b/basis/json/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/concurrency/distributed/authors.txt
rename to basis/json/authors.txt
diff --git a/extra/cpu/8080/authors.txt b/basis/json/reader/authors.txt
similarity index 100%
rename from extra/cpu/8080/authors.txt
rename to basis/json/reader/authors.txt
diff --git a/extra/json/reader/reader-docs.factor b/basis/json/reader/reader-docs.factor
similarity index 100%
rename from extra/json/reader/reader-docs.factor
rename to basis/json/reader/reader-docs.factor
diff --git a/extra/json/reader/reader-tests.factor b/basis/json/reader/reader-tests.factor
similarity index 91%
rename from extra/json/reader/reader-tests.factor
rename to basis/json/reader/reader-tests.factor
index 4b7bd56f01..995ae0e0b8 100644
--- a/extra/json/reader/reader-tests.factor
+++ b/basis/json/reader/reader-tests.factor
@@ -11,9 +11,9 @@ IN: json.reader.tests
 { 102.0 } [ "102.0" json> ] unit-test
 { 102.5 } [ "102.5" json> ] unit-test
 { 102.5 } [ "102.50" json> ] unit-test
-{ -10250 } [ "-102.5e2" json> ] unit-test
-{ -10250 } [ "-102.5E+2" json> ] unit-test
-{ 10.25 } [ "1025e-2" json> ] unit-test
+{ -10250.0 } [ "-102.5e2" json> ] unit-test
+{ -10250.0 } [ "-102.5E+2" json> ] unit-test
+{ 10+1/4 } [ "1025e-2" json> ] unit-test
 { 0.125 } [ "0.125" json> ] unit-test
 { -0.125 } [ "-0.125" json> ] unit-test
 
diff --git a/extra/json/reader/reader.factor b/basis/json/reader/reader.factor
similarity index 97%
rename from extra/json/reader/reader.factor
rename to basis/json/reader/reader.factor
index 5e6b16dc2f..e21b1292e3 100755
--- a/extra/json/reader/reader.factor
+++ b/basis/json/reader/reader.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel parser-combinators namespaces sequences promises strings 
        assocs math math.parser math.vectors math.functions math.order
-       lazy-lists hashtables ascii ;
+       lists hashtables ascii accessors ;
 IN: json.reader
 
 ! Grammar for JSON from RFC 4627
@@ -169,11 +169,12 @@ LAZY: 'value' ( -- parser )
     'array' ,
     'number' ,
   ] [<|>] spaced ;
+ERROR: could-not-parse-json ;
 
 : json> ( string -- object )
   #! Parse a json formatted string to a factor object
   'value' parse dup nil? [ 
-    "Could not parse json" throw
+      could-not-parse-json
   ] [ 
-    car parse-result-parsed 
+    car parsed>> 
   ] if ;
diff --git a/extra/json/reader/summary.txt b/basis/json/reader/summary.txt
similarity index 100%
rename from extra/json/reader/summary.txt
rename to basis/json/reader/summary.txt
diff --git a/extra/json/summary.txt b/basis/json/summary.txt
similarity index 100%
rename from extra/json/summary.txt
rename to basis/json/summary.txt
diff --git a/extra/cpu/8080/emulator/authors.txt b/basis/json/writer/authors.txt
similarity index 100%
rename from extra/cpu/8080/emulator/authors.txt
rename to basis/json/writer/authors.txt
diff --git a/extra/json/writer/summary.txt b/basis/json/writer/summary.txt
similarity index 100%
rename from extra/json/writer/summary.txt
rename to basis/json/writer/summary.txt
diff --git a/extra/json/writer/writer-docs.factor b/basis/json/writer/writer-docs.factor
similarity index 100%
rename from extra/json/writer/writer-docs.factor
rename to basis/json/writer/writer-docs.factor
diff --git a/extra/json/writer/writer.factor b/basis/json/writer/writer.factor
similarity index 86%
rename from extra/json/writer/writer.factor
rename to basis/json/writer/writer.factor
index a68c65087e..0d22494b13 100644
--- a/extra/json/writer/writer.factor
+++ b/basis/json/writer/writer.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel io.streams.string io strings splitting sequences math 
        math.parser assocs classes words namespaces prettyprint
-       hashtables mirrors ;
+       hashtables mirrors tr ;
 IN: json.writer
 
 #! Writes the object out to a stream in JSON format
@@ -24,10 +24,7 @@ M: number json-print ( num -- )
 M: sequence json-print ( array -- ) 
   CHAR: [ write1 [ >json ] map "," join write CHAR: ] write1 ;
 
-: jsvar-encode ( string -- string )
-  #! Convert the string so that it contains characters usable within
-  #! javascript variable names.
-  { { CHAR: - CHAR: _ } } substitute ;
+TR: jsvar-encode "-" "_" ;
   
 : tuple>fields ( object -- seq )
   <mirror> [
diff --git a/extra/lcs/authors.txt b/basis/lcs/authors.txt
similarity index 100%
rename from extra/lcs/authors.txt
rename to basis/lcs/authors.txt
diff --git a/extra/lcs/diff2html/diff2html.factor b/basis/lcs/diff2html/diff2html.factor
similarity index 89%
rename from extra/lcs/diff2html/diff2html.factor
rename to basis/lcs/diff2html/diff2html.factor
index 754e69a476..b92eeb1250 100644
--- a/extra/lcs/diff2html/diff2html.factor
+++ b/basis/lcs/diff2html/diff2html.factor
@@ -3,14 +3,14 @@
 USING: lcs html.elements kernel qualified ;
 FROM: accessors => item>> ;
 FROM: io => write ;
-FROM: sequences => each empty? ;
+FROM: sequences => each if-empty ;
 FROM: xml.entities => escape-string ;
 IN: lcs.diff2html
 
 GENERIC: diff-line ( obj -- )
 
 : write-item ( item -- )
-    item>> dup empty? [ drop "&nbsp;" ] [ escape-string ] if write ;
+    item>> [ "&nbsp;" ] [ escape-string ] if-empty write ;
 
 M: retain diff-line
     <tr>
diff --git a/extra/lcs/lcs-docs.factor b/basis/lcs/lcs-docs.factor
similarity index 97%
rename from extra/lcs/lcs-docs.factor
rename to basis/lcs/lcs-docs.factor
index 49e46c7641..0ca84edaea 100755
--- a/extra/lcs/lcs-docs.factor
+++ b/basis/lcs/lcs-docs.factor
@@ -22,7 +22,7 @@ HELP: delete
 HELP: insert
 { $class-description "Represents an action in an edit script where an item is added, going from the initial sequence to the final sequence. This has one slot, called item, containing the thing which is inserted" } ;
 
-ARTICLE: "lcs" "LCS, Diffing and Distance"
+ARTICLE: "lcs" "LCS, diffing and distance"
 "This vocabulary provides words for three apparently unrelated but in fact very similar problems: finding a longest common subsequence between two sequences, getting a minimal edit script (diff) between two sequences, and calculating the Levenshtein distance between two sequences. The implementations of these algorithms are very closely related, and all running times are O(nm), where n and m are the lengths of the input sequences."
 { $subsection lcs }
 { $subsection diff }
diff --git a/extra/lcs/lcs-tests.factor b/basis/lcs/lcs-tests.factor
similarity index 93%
rename from extra/lcs/lcs-tests.factor
rename to basis/lcs/lcs-tests.factor
index 3aa10a0687..7d9a9ffd27 100755
--- a/extra/lcs/lcs-tests.factor
+++ b/basis/lcs/lcs-tests.factor
@@ -2,6 +2,10 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: tools.test lcs ;
 
+\ lcs must-infer
+\ diff must-infer
+\ levenshtein must-infer
+
 [ 3 ] [ "sitting" "kitten" levenshtein ] unit-test
 [ 3 ] [ "kitten" "sitting" levenshtein ] unit-test
 [ 1 ] [ "freshpak" "freshpack" levenshtein ] unit-test
diff --git a/extra/lcs/lcs.factor b/basis/lcs/lcs.factor
similarity index 86%
rename from extra/lcs/lcs.factor
rename to basis/lcs/lcs.factor
index e5155a786e..6f9ae3c883 100755
--- a/extra/lcs/lcs.factor
+++ b/basis/lcs/lcs.factor
@@ -1,5 +1,5 @@
 USING: sequences kernel math locals math.order math.ranges
-accessors combinators.lib arrays namespaces combinators ;
+accessors arrays namespaces combinators combinators.short-circuit ;
 IN: lcs
 
 <PRIVATE
@@ -56,22 +56,26 @@ TUPLE: trace-state old new table i j ;
     {
         [ i>> 0 > ] [ j>> 0 > ]
         [ [ old-nth ] [ new-nth ] bi = ]
-    } <-&& ;
+    } 1&& ;
 
 : do-retain ( state -- state )
     dup old-nth retain boa ,
     [ 1- ] change-i [ 1- ] change-j ;
 
 : inserted? ( state -- ? )
-    [ j>> 0 > ]
-    [ [ i>> zero? ] [ top-beats-side? ] or? ] and? ;
+    {
+        [ j>> 0 > ]
+        [ { [ i>> zero? ] [ top-beats-side? ] } 1|| ]
+    } 1&& ;
 
 : do-insert ( state -- state )
     dup new-nth insert boa , [ 1- ] change-j ;
 
 : deleted? ( state -- ? )
-    [ i>> 0 > ]
-    [ [ j>> zero? ] [ top-beats-side? not ] or? ] and? ;
+    {
+        [ i>> 0 > ]
+        [ { [ j>> zero? ] [ top-beats-side? not ] } 1|| ]
+    } 1&& ;
 
 : do-delete ( state -- state )
     dup old-nth delete boa , [ 1- ] change-i ;
diff --git a/extra/lcs/summary.txt b/basis/lcs/summary.txt
similarity index 100%
rename from extra/lcs/summary.txt
rename to basis/lcs/summary.txt
diff --git a/extra/lcs/tags.txt b/basis/lcs/tags.txt
similarity index 100%
rename from extra/lcs/tags.txt
rename to basis/lcs/tags.txt
diff --git a/extra/help/stylesheet/authors.txt b/basis/libc/authors.txt
similarity index 100%
rename from extra/help/stylesheet/authors.txt
rename to basis/libc/authors.txt
diff --git a/core/libc/libc-docs.factor b/basis/libc/libc-docs.factor
similarity index 100%
rename from core/libc/libc-docs.factor
rename to basis/libc/libc-docs.factor
diff --git a/core/libc/libc-tests.factor b/basis/libc/libc-tests.factor
similarity index 62%
rename from core/libc/libc-tests.factor
rename to basis/libc/libc-tests.factor
index 249399bdd0..b00463127f 100755
--- a/core/libc/libc-tests.factor
+++ b/basis/libc/libc-tests.factor
@@ -4,8 +4,8 @@ destructors kernel ;
 
 100 malloc "block" set
 
-[ t ] [ "block" get mallocs get key? ] unit-test
+[ t ] [ "block" get mallocs key? ] unit-test
 
 [ ] [ [ "block" get &free drop ] with-destructors ] unit-test
 
-[ f ] [ "block" get mallocs get key? ] unit-test
+[ f ] [ "block" get mallocs key? ] unit-test
diff --git a/core/libc/libc.factor b/basis/libc/libc.factor
similarity index 75%
rename from core/libc/libc.factor
rename to basis/libc/libc.factor
index dff6e9e0f1..cf4e2fb722 100755
--- a/core/libc/libc.factor
+++ b/basis/libc/libc.factor
@@ -2,8 +2,8 @@
 ! Copyright (C) 2007, 2008 Slava Pestov
 ! Copyright (C) 2007, 2008 Doug Coleman
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien assocs continuations destructors init kernel
-namespaces accessors ;
+USING: alien assocs continuations destructors kernel
+namespaces accessors sets summary ;
 IN: libc
 
 <PRIVATE
@@ -20,34 +20,49 @@ IN: libc
 : (realloc) ( alien size -- newalien )
     "void*" "libc" "realloc" { "void*" "ulong" } alien-invoke ;
 
-SYMBOL: mallocs
+SYMBOL: malloc-expiry
+
+: mallocs ( -- assoc )
+    malloc-expiry get-global expired? [
+        -1 <alien> malloc-expiry set-global
+        H{ } clone dup \ mallocs set-global
+    ] [
+        \ mallocs get-global
+    ] if ;
 
 PRIVATE>
 
 ERROR: bad-ptr ;
 
+M: bad-ptr summary
+    drop "Memory allocation failed" ;
+
 : check-ptr ( c-ptr -- c-ptr )
     [ bad-ptr ] unless* ;
 
 ERROR: double-free ;
 
+M: double-free summary
+    drop "Free failed since memory is not allocated" ;
+
 ERROR: realloc-error ptr size ;
 
+M: realloc-error summary
+    drop "Memory reallocation failed" ;
+
 <PRIVATE
 
-[ H{ } clone mallocs set-global ] "libc" add-init-hook
-
 : add-malloc ( alien -- )
-    dup mallocs get-global set-at ;
+    mallocs conjoin ;
 
 : delete-malloc ( alien -- )
     [
-        mallocs get-global delete-at*
+        mallocs delete-at*
         [ double-free ] unless drop
     ] when* ;
 
 : malloc-exists? ( alien -- ? )
-    mallocs get-global key? ;
+    mallocs key? ;
 
 PRIVATE>
 
diff --git a/core/libc/summary.txt b/basis/libc/summary.txt
similarity index 100%
rename from core/libc/summary.txt
rename to basis/libc/summary.txt
diff --git a/extra/cairo/tags.txt b/basis/libc/tags.txt
similarity index 100%
rename from extra/cairo/tags.txt
rename to basis/libc/tags.txt
diff --git a/extra/help/syntax/authors.txt b/basis/listener/authors.txt
similarity index 100%
rename from extra/help/syntax/authors.txt
rename to basis/listener/authors.txt
diff --git a/core/listener/listener-docs.factor b/basis/listener/listener-docs.factor
similarity index 100%
rename from core/listener/listener-docs.factor
rename to basis/listener/listener-docs.factor
diff --git a/core/listener/listener-tests.factor b/basis/listener/listener-tests.factor
similarity index 98%
rename from core/listener/listener-tests.factor
rename to basis/listener/listener-tests.factor
index 24449049e0..e681bac314 100755
--- a/core/listener/listener-tests.factor
+++ b/basis/listener/listener-tests.factor
@@ -1,6 +1,6 @@
 USING: io io.streams.string io.streams.duplex listener
 tools.test parser math namespaces continuations vocabs kernel
-compiler.units ;
+compiler.units eval ;
 IN: listener.tests
 
 : hello "Hi" print ; parsing
diff --git a/core/listener/listener.factor b/basis/listener/listener.factor
similarity index 84%
rename from core/listener/listener.factor
rename to basis/listener/listener.factor
index e00e64f4bc..feddbdc042 100755
--- a/core/listener/listener.factor
+++ b/basis/listener/listener.factor
@@ -1,9 +1,10 @@
 ! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays hashtables io kernel math math.parser memory
-namespaces parser sequences strings io.styles
+namespaces parser lexer sequences strings io.styles
 vectors words generic system combinators continuations debugger
-definitions compiler.units accessors ;
+definitions compiler.units accessors colors ;
+
 IN: listener
 
 SYMBOL: quit-flag
@@ -41,7 +42,7 @@ M: object stream-read-quot
 
 : prompt. ( -- )
     "( " in get " )" 3append
-    H{ { background { 1 0.7 0.7 1 } } } format bl flush ;
+    H{ { background T{ rgba f 1 0.7 0.7 1 } } } format bl flush ;
 
 SYMBOL: error-hook
 
@@ -51,7 +52,7 @@ SYMBOL: error-hook
     listener-hook get call prompt.
     [ read-quot [ [ error-hook get call ] recover ] [ bye ] if* ]
     [
-        dup parse-error? [
+        dup lexer-error? [
             error-hook get call
         ] [
             rethrow
@@ -59,9 +60,7 @@ SYMBOL: error-hook
     ] recover ;
 
 : until-quit ( -- )
-    quit-flag get
-    [ quit-flag off ]
-    [ listen until-quit ] if ; inline
+    quit-flag get [ quit-flag off ] [ listen until-quit ] if ;
 
 : listener ( -- )
     [ until-quit ] with-interactive-vocabs ;
diff --git a/core/listener/summary.txt b/basis/listener/summary.txt
similarity index 100%
rename from core/listener/summary.txt
rename to basis/listener/summary.txt
diff --git a/extra/help/lint/tags.txt b/basis/listener/tags.txt
similarity index 100%
rename from extra/help/lint/tags.txt
rename to basis/listener/tags.txt
diff --git a/extra/help/topics/authors.txt b/basis/locals/authors.txt
similarity index 100%
rename from extra/help/topics/authors.txt
rename to basis/locals/authors.txt
diff --git a/basis/locals/backend/backend-tests.factor b/basis/locals/backend/backend-tests.factor
new file mode 100644
index 0000000000..9352714509
--- /dev/null
+++ b/basis/locals/backend/backend-tests.factor
@@ -0,0 +1,39 @@
+IN: locals.backend.tests
+USING: tools.test locals.backend kernel arrays ;
+
+[ 3 ] [ 3 >r 1 get-local r> drop ] unit-test
+
+[ 4 ] [ 3 4 >r >r 2 get-local 2 drop-locals ] unit-test
+
+: get-local-test-1 ( -- x ) 3 >r 1 get-local r> drop ;
+
+\ get-local-test-1 must-infer
+
+[ 3 ] [ get-local-test-1 ] unit-test
+
+: get-local-test-2 ( -- x ) 3 4 >r >r 2 get-local 2 drop-locals ;
+
+\ get-local-test-2 must-infer
+
+[ 4 ] [ get-local-test-2 ] unit-test
+
+: get-local-test-3 ( -- a b ) 3 4 >r >r 2 get-local r> r> 2array ;
+
+\ get-local-test-3 must-infer
+
+[ 4 { 3 4 } ] [ get-local-test-3 ] unit-test
+
+: get-local-test-4 ( -- a b )
+    3 4 >r >r r> r> dup swap >r swap >r r> r> 2array ;
+
+\ get-local-test-4 must-infer
+
+[ 4 { 3 4 } ] [ get-local-test-4 ] unit-test
+
+[ 1 2 ] [ 1 2 2 load-locals r> r> ] unit-test
+
+: load-locals-test-1 ( -- a b ) 1 2 2 load-locals r> r> ;
+
+\ load-locals-test-1 must-infer
+
+[ 1 2 ] [ load-locals-test-1 ] unit-test
diff --git a/basis/locals/backend/backend.factor b/basis/locals/backend/backend.factor
new file mode 100644
index 0000000000..27772d19d0
--- /dev/null
+++ b/basis/locals/backend/backend.factor
@@ -0,0 +1,17 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math kernel slots.private sequences effects words ;
+IN: locals.backend
+
+: load-locals ( n -- )
+    dup zero? [ drop ] [ swap >r 1- load-locals ] if ;
+
+: get-local ( n -- value )
+    dup zero? [ drop dup ] [ r> swap 1- get-local swap >r ] if ;
+
+: local-value 2 slot ; inline
+
+: set-local-value 2 set-slot ; inline
+
+: drop-locals ( n -- )
+    dup zero? [ drop ] [ r> drop 1- drop-locals ] if ;
diff --git a/extra/locals/locals-docs.factor b/basis/locals/locals-docs.factor
similarity index 88%
rename from extra/locals/locals-docs.factor
rename to basis/locals/locals-docs.factor
index 961017f39e..b3b676c1cb 100644
--- a/extra/locals/locals-docs.factor
+++ b/basis/locals/locals-docs.factor
@@ -101,15 +101,27 @@ $nl
 ARTICLE: "locals-limitations" "Limitations of locals"
 "The first limitation is that the " { $link >r } " and " { $link r> } " words may not be used together with locals. Instead, use the " { $link dip } " combinator."
 $nl
-"Another limitation is that closure conversion does not descend into arrays, hashtables or other types of literals. For example, the following does not work:"
+"Another limitation concerns combinators implemented as macros. Locals can only be used with such combinators if the input array immediately precedes the combinator call. For example, the following will work:"
 { $code
-    ":: bad-cond-usage ( a -- ... )"
+    ":: good-cond-usage ( a -- ... )"
     "    {"
     "        { [ a 0 < ] [ ... ] }"
     "        { [ a 0 > ] [ ... ] }"
     "        { [ a 0 = ] [ ... ] }"
     "    } cond ;"
-} ;
+}
+"But not the following:"
+{ $code
+    ": my-cond ( alist -- ) cond ; inline"
+    ""
+    ":: bad-cond-usage ( a -- ... )"
+    "    {"
+    "        { [ a 0 < ] [ ... ] }"
+    "        { [ a 0 > ] [ ... ] }"
+    "        { [ a 0 = ] [ ... ] }"
+    "    } my-cond ;"
+}
+"The reason is that locals are rewritten into stack code at parse time, whereas macro expansion is performed later during compile time. To circumvent this problem, the " { $vocab-link "macros.expander" } " vocabulary is used to rewrite simple macro usages prior to local transformation, however "{ $vocab-link "macros.expander" } " does not deal with more complicated cases where the literal inputs to the macro do not immediately precede the macro call in the source." ;
 
 ARTICLE: "locals" "Local variables and lexical closures"
 "The " { $vocab-link "locals" } " vocabulary implements lexical scope with full closures, both downward and upward. Mutable bindings are supported, including assignment to bindings in outer scope."
diff --git a/extra/locals/locals-tests.factor b/basis/locals/locals-tests.factor
similarity index 74%
rename from extra/locals/locals-tests.factor
rename to basis/locals/locals-tests.factor
index 4e670cdac0..59ec325f39 100755
--- a/extra/locals/locals-tests.factor
+++ b/basis/locals/locals-tests.factor
@@ -1,6 +1,7 @@
 USING: locals math sequences tools.test hashtables words kernel
 namespaces arrays strings prettyprint io.streams.string parser
-accessors ;
+accessors generic eval combinators combinators.short-circuit
+combinators.short-circuit.smart ;
 IN: locals.tests
 
 :: foo ( a b -- a a ) a a ;
@@ -265,3 +266,67 @@ M:: fixnum next-method-test ( a -- b ) a call-next-method 1 + ;
     [ \ a-word-with-locals see ] with-string-writer
     new-definition =
 ] unit-test
+
+: method-definition "USING: locals locals.tests sequences ;\nM:: sequence method-with-locals ( a -- y ) a reverse ;\n" ;
+
+GENERIC: method-with-locals ( x -- y )
+
+M:: sequence method-with-locals ( a -- y ) a reverse ;
+
+[ t ] [
+    [ \ sequence \ method-with-locals method see ] with-string-writer
+    method-definition =
+] unit-test
+
+:: cond-test ( a b -- c )
+    {
+        { [ a b < ] [ 3 ] }
+        { [ a b = ] [ 4 ] }
+        { [ a b > ] [ 5 ] }
+    } cond ;
+
+[ 3 ] [ 1 2 cond-test ] unit-test
+[ 4 ] [ 2 2 cond-test ] unit-test
+[ 5 ] [ 3 2 cond-test ] unit-test
+
+:: 0&&-test ( a -- ? )
+    { [ a integer? ] [ a even? ] [ a 10 > ] } 0&& ;
+
+[ f ] [ 1.5 0&&-test ] unit-test
+[ f ] [ 3 0&&-test ] unit-test
+[ f ] [ 8 0&&-test ] unit-test
+[ t ] [ 12 0&&-test ] unit-test
+
+:: &&-test ( a -- ? )
+    { [ a integer? ] [ a even? ] [ a 10 > ] } && ;
+
+[ f ] [ 1.5 &&-test ] unit-test
+[ f ] [ 3 &&-test ] unit-test
+[ f ] [ 8 &&-test ] unit-test
+[ t ] [ 12 &&-test ] unit-test
+
+:: wlet-&&-test ( a -- ? )
+    [wlet | is-integer? [ a integer? ]
+            is-even? [ a even? ]
+            >10? [ a 10 > ] |
+        { [ is-integer? ] [ is-even? ] [ >10? ] } &&
+    ] ;
+
+! [ f ] [ 1.5 wlet-&&-test ] unit-test
+! [ f ] [ 3 wlet-&&-test ] unit-test
+! [ f ] [ 8 wlet-&&-test ] unit-test
+! [ t ] [ 12 wlet-&&-test ] unit-test
+
+[ { 10       } ] [ 10       [| a     | { a     } ] call ] unit-test
+[ { 10 20    } ] [ 10 20    [| a b   | { a b   } ] call ] unit-test
+[ { 10 20 30 } ] [ 10 20 30 [| a b c | { a b c } ] call ] unit-test
+
+[ { 10 20 30 } ] [ [let | a [ 10 ] b [ 20 ] c [ 30 ] | { a b c } ] ] unit-test
+
+[ V{ 10 20 30 } ] [ 10 20 30 [| a b c | V{ a b c } ] call ] unit-test
+
+[ H{ { 10 "a" } { 20 "b" } { 30 "c" } } ]
+[ 10 20 30 [| a b c | H{ { a "a" } { b "b" } { c "c" } } ] call ] unit-test
+
+[ T{ slice f 0 3 "abc" } ]
+[ 0 3 "abc" [| from to seq | T{ slice f from to seq } ] call ] unit-test
\ No newline at end of file
diff --git a/extra/locals/locals.factor b/basis/locals/locals.factor
similarity index 69%
rename from extra/locals/locals.factor
rename to basis/locals/locals.factor
index e74d0b6078..af5f6834bc 100755
--- a/extra/locals/locals.factor
+++ b/basis/locals/locals.factor
@@ -1,11 +1,14 @@
 ! Copyright (C) 2007, 2008 Slava Pestov, Eduardo Cavazos.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel namespaces sequences sequences.private assocs math
-inference.transforms parser words quotations debugger macros
-arrays macros splitting combinators prettyprint.backend
-definitions prettyprint hashtables prettyprint.sections sets
-sequences.private effects generic compiler.units accessors
-locals.backend memoize ;
+       vectors strings classes.tuple generalizations 
+       parser words quotations debugger macros arrays macros splitting
+       combinators prettyprint.backend definitions prettyprint
+       hashtables prettyprint.sections sets sequences.private effects
+       effects.parser generic generic.parser compiler.units accessors
+       locals.backend memoize macros.expander lexer
+       stack-checker.known-words ;
+
 IN: locals
 
 ! Inspired by
@@ -17,23 +20,34 @@ TUPLE: lambda vars body ;
 
 C: <lambda> lambda
 
-TUPLE: let bindings body ;
+TUPLE: binding-form bindings body ;
+
+TUPLE: let < binding-form ;
 
 C: <let> let
 
-TUPLE: let* bindings body ;
+TUPLE: let* < binding-form ;
 
 C: <let*> let*
 
-TUPLE: wlet bindings body ;
+TUPLE: wlet < binding-form ;
 
 C: <wlet> wlet
 
+M: lambda expand-macros clone [ expand-macros ] change-body ;
+
+M: binding-form expand-macros
+    clone
+        [ [ expand-macros ] assoc-map ] change-bindings
+        [ expand-macros ] change-body ;
+
 PREDICATE: local < word "local?" word-prop ;
 
 : <local> ( name -- word )
     #! Create a local variable identifier
-    f <word> dup t "local?" set-word-prop ;
+    f <word>
+    dup t "local?" set-word-prop
+    dup { } { object } define-primitive ;
 
 PREDICATE: local-word < word "local-word?" word-prop ;
 
@@ -43,34 +57,39 @@ PREDICATE: local-word < word "local-word?" word-prop ;
 PREDICATE: local-reader < word "local-reader?" word-prop ;
 
 : <local-reader> ( name -- word )
-    f <word> dup t "local-reader?" set-word-prop ;
+    f <word>
+    dup t "local-reader?" set-word-prop
+    dup { } { object } define-primitive ;
 
 PREDICATE: local-writer < word "local-writer?" word-prop ;
 
 : <local-writer> ( reader -- word )
-    dup word-name "!" append f <word>
-    [ t "local-writer?" set-word-prop ] keep
-    [ "local-writer" set-word-prop ] 2keep
-    [ swap "local-reader" set-word-prop ] keep ;
+    dup name>> "!" append f <word> {
+        [ nip { object } { } define-primitive ]
+        [ nip t "local-writer?" set-word-prop ]
+        [ swap "local-reader" set-word-prop ]
+        [ "local-writer" set-word-prop ]
+        [ nip ]
+    } 2cleave ;
 
 TUPLE: quote local ;
 
 C: <quote> quote
 
 : local-index ( obj args -- n )
-    [ dup quote? [ quote-local ] when eq? ] with find drop ;
+    [ dup quote? [ local>> ] when eq? ] with find drop ;
 
 : read-local-quot ( obj args -- quot )
     local-index 1+ [ get-local ] curry ;
 
 : localize-writer ( obj args -- quot )
-  >r "local-reader" word-prop r>
-  read-local-quot [ set-local-value ] append ;
+    >r "local-reader" word-prop r>
+    read-local-quot [ set-local-value ] append ;
 
 : localize ( obj args -- quot )
     {
         { [ over local? ]        [ read-local-quot ] }
-        { [ over quote? ]        [ >r quote-local r> read-local-quot ] }
+        { [ over quote? ]        [ >r local>> r> read-local-quot ] }
         { [ over local-word? ]   [ read-local-quot [ call ] append ] }
         { [ over local-reader? ] [ read-local-quot [ local-value ] append ] }
         { [ over local-writer? ] [ localize-writer ] }
@@ -81,8 +100,8 @@ C: <quote> quote
 UNION: special local quote local-word local-reader local-writer ;
 
 : load-locals-quot ( args -- quot )
-    dup empty? [
-        drop [ ]
+    [
+        [ ]
     ] [
         dup [ local-reader? ] contains? [
             <reversed> [
@@ -91,14 +110,10 @@ UNION: special local quote local-word local-reader local-writer ;
         ] [
             length [ load-locals ] curry >quotation
         ] if
-    ] if ;
+    ] if-empty ;
 
 : drop-locals-quot ( args -- quot )
-    dup empty? [
-        drop [ ]
-    ] [
-        length [ drop-locals ] curry
-    ] if ;
+    [ [ ] ] [ length [ drop-locals ] curry ] if-empty ;
 
 : point-free-body ( quot args -- newquot )
     >r but-last-slice r> [ localize ] curry map concat ;
@@ -146,7 +161,8 @@ GENERIC: lambda-rewrite* ( obj -- )
 
 GENERIC: local-rewrite* ( obj -- )
 
-: lambda-rewrite
+: lambda-rewrite ( form -- form' )
+    expand-macros
     [ local-rewrite* ] [ ] make
     [ [ lambda-rewrite* ] each ] [ ] make ;
 
@@ -184,18 +200,78 @@ M: object lambda-rewrite* , ;
 
 M: object local-rewrite* , ;
 
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+! Broil is used to support locals in literals
+
+DEFER: [broil]
+DEFER: [broil-hashtable]
+DEFER: [broil-tuple]
+
+: broil-element ( obj -- quot )
+  {
+    { [ dup number?    ] [            1quotation ] }
+    { [ dup string?    ] [            1quotation ] }
+    { [ dup sequence?  ] [ [broil]               ] }
+    { [ dup hashtable? ] [ [broil-hashtable]     ] }
+    { [ dup tuple?     ] [ [broil-tuple]         ] }
+    { [ dup local?     ] [            1quotation ] }
+    { [ dup word?      ] [ literalize 1quotation ] }
+    { [ t              ] [            1quotation ] }
+  }
+  cond ;
+
+: [broil] ( seq -- quot )
+  [ [ broil-element ] map concat >quotation ]
+  [ length ]
+  [        ]
+  tri
+  [ nsequence ] curry curry compose ;
+  
+MACRO: broil ( seq -- quot ) [broil] ;
+
+: [broil-hashtable] ( hashtable -- quot )
+  >alist
+  [ [ broil-element ] map concat >quotation ]
+  [ length ]
+  [        ]
+  tri
+  [ nsequence >hashtable ] curry curry compose ;
+
+MACRO: broil-hashtable ( hashtable -- quot ) [broil-hashtable] ;
+
+: [broil-tuple] ( tuple -- quot )
+  tuple>array
+  [ [ broil-element ] map concat >quotation ]
+  [ length ]
+  [        ]
+  tri
+  [ nsequence >tuple ] curry curry compose ;
+
+MACRO: broil-tuple ( tuple -- quot ) [broil-tuple] ;
+
+! Engage broil on arrays and vectors. Can't do it on 'sequence'
+! because that will pick up strings and integers. What do do...
+
+M: array     local-rewrite* ( array      -- ) [broil]           % ;
+M: vector    local-rewrite* ( vector     -- ) [broil]           % ;
+M: tuple     local-rewrite* ( tuple      -- ) [broil-tuple]     % ;
+M: hashtable local-rewrite* ( hashtable  -- ) [broil-hashtable] % ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
 : make-local ( name -- word )
     "!" ?tail [
         <local-reader>
-        dup <local-writer> dup word-name set
+        dup <local-writer> dup name>> set
     ] [ <local> ] if
-    dup dup word-name set ;
+    dup dup name>> set ;
 
 : make-locals ( seq -- words assoc )
     [ [ make-local ] map ] H{ } make-assoc ;
 
 : make-local-word ( name -- word )
-    <local-word> dup dup word-name set ;
+    <local-word> dup dup name>> set ;
 
 : push-locals ( assoc -- )
     use get push ;
@@ -273,22 +349,22 @@ M: wlet local-rewrite*
     let-rewrite ;
 
 : parse-locals ( -- vars assoc )
-    parse-effect
+    ")" parse-effect
     word [ over "declared-effect" set-word-prop ] when*
-    effect-in make-locals dup push-locals ;
+    in>> [ dup pair? [ first ] when ] map make-locals dup push-locals ;
 
 : parse-locals-definition ( word -- word quot )
     scan "(" assert= parse-locals \ ; (parse-lambda) <lambda>
     2dup "lambda" set-word-prop
     lambda-rewrite first ;
 
-: (::) CREATE-WORD parse-locals-definition ;
+: (::) ( -- word def ) CREATE-WORD parse-locals-definition ;
 
-: (M::)
+: (M::) ( -- word def )
     CREATE-METHOD
     [ parse-locals-definition ] with-method-definition ;
 
-: parsed-lambda ( form -- )
+: parsed-lambda ( accum form -- accum )
     in-lambda? get [ parsed ] [ lambda-rewrite over push-all ] if ;
 
 PRIVATE>
@@ -365,7 +441,7 @@ M: lambda-word definition
     "lambda" word-prop body>> ;
 
 M: lambda-word reset-word
-    [ f "lambda" set-word-prop ] [ call-next-method ] bi ;
+    [ call-next-method ] [ f "lambda" set-word-prop ] bi ;
 
 INTERSECTION: lambda-macro macro lambda-word ;
 
@@ -400,13 +476,13 @@ M: lambda-memoized reset-word
 : method-stack-effect ( method -- effect )
     dup "lambda" word-prop vars>>
     swap "method-generic" word-prop stack-effect
-    dup [ effect-out ] when
+    dup [ out>> ] when
     <effect> ;
 
 M: lambda-method synopsis*
     dup dup dup definer.
-    "method-specializer" word-prop pprint*
-    "method-generic" word-prop pprint*
+    "method-class" word-prop pprint-word
+    "method-generic" word-prop pprint-word
     method-stack-effect effect>string comment. ;
 
 PRIVATE>
diff --git a/extra/locals/summary.txt b/basis/locals/summary.txt
similarity index 100%
rename from extra/locals/summary.txt
rename to basis/locals/summary.txt
diff --git a/extra/locals/tags.txt b/basis/locals/tags.txt
similarity index 100%
rename from extra/locals/tags.txt
rename to basis/locals/tags.txt
diff --git a/extra/logging/analysis/analysis-docs.factor b/basis/logging/analysis/analysis-docs.factor
similarity index 100%
rename from extra/logging/analysis/analysis-docs.factor
rename to basis/logging/analysis/analysis-docs.factor
diff --git a/extra/logging/analysis/analysis.factor b/basis/logging/analysis/analysis.factor
similarity index 61%
rename from extra/logging/analysis/analysis.factor
rename to basis/logging/analysis/analysis.factor
index cd1429ac53..1e1e31c501 100755
--- a/extra/logging/analysis/analysis.factor
+++ b/basis/logging/analysis/analysis.factor
@@ -1,7 +1,9 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences namespaces words assocs logging sorting
-prettyprint io io.styles strings logging.parser calendar.format ;
+prettyprint io io.styles io.files io.encodings.utf8
+strings combinators accessors arrays
+logging.server logging.parser calendar.format ;
 IN: logging.analysis
 
 SYMBOL: word-names
@@ -10,11 +12,11 @@ SYMBOL: word-histogram
 SYMBOL: message-histogram
 
 : analyze-entry ( entry -- )
-    dup second ERROR eq? [ dup errors get push ] when
-    dup second CRITICAL eq? [ dup errors get push ] when
-    1 over third word-histogram get at+
-    dup third word-names get member? [
-        1 over rest message-histogram get at+
+    dup level>> { ERROR CRITICAL } memq? [ dup errors get push ] when
+    1 over word-name>> word-histogram get at+
+    dup word-name>> word-names get member? [
+        1 over [ level>> ] [ word-name>> ] [ message>> ] tri 3array
+        message-histogram get at+
     ] when
     drop ;
 
@@ -41,12 +43,14 @@ SYMBOL: message-histogram
         ] curry assoc-each
     ] tabular-output ;
 
-: log-entry.
+: log-entry. ( entry -- )
     "====== " write
-    dup first (timestamp>string) bl
-    dup second pprint bl
-    dup third write nl
-    fourth "\n" join print ;
+    {
+        [ date>> (timestamp>string) bl ]
+        [ level>> pprint bl ]
+        [ word-name>> write nl ]
+        [ message>> "\n" join print ]
+    } cleave ;
 
 : errors. ( errors -- )
     [ log-entry. ] each ;
@@ -55,7 +59,7 @@ SYMBOL: message-histogram
     "==== INTERESTING MESSAGES:" print nl
     "Total: " write dup values sum . nl
     [
-        dup second write ": " write third "\n" join write
+        dup level>> write ": " write message>> "\n" join write
     ] histogram.
     nl
     "==== WORDS:" print nl
@@ -66,3 +70,6 @@ SYMBOL: message-histogram
 
 : analyze-log ( lines word-names -- )
     >r parse-log r> analyze-entries analysis. ;
+
+: analyze-log-file ( service word-names -- )
+    >r parse-log-file r> analyze-entries analysis. ;
diff --git a/extra/logging/analysis/authors.txt b/basis/logging/analysis/authors.txt
similarity index 100%
rename from extra/logging/analysis/authors.txt
rename to basis/logging/analysis/authors.txt
diff --git a/extra/logging/analysis/summary.txt b/basis/logging/analysis/summary.txt
similarity index 100%
rename from extra/logging/analysis/summary.txt
rename to basis/logging/analysis/summary.txt
diff --git a/extra/logging/analysis/tags.txt b/basis/logging/analysis/tags.txt
similarity index 100%
rename from extra/logging/analysis/tags.txt
rename to basis/logging/analysis/tags.txt
diff --git a/extra/logging/authors.txt b/basis/logging/authors.txt
similarity index 100%
rename from extra/logging/authors.txt
rename to basis/logging/authors.txt
diff --git a/extra/logging/insomniac/authors.txt b/basis/logging/insomniac/authors.txt
similarity index 100%
rename from extra/logging/insomniac/authors.txt
rename to basis/logging/insomniac/authors.txt
diff --git a/extra/logging/insomniac/insomniac-docs.factor b/basis/logging/insomniac/insomniac-docs.factor
similarity index 100%
rename from extra/logging/insomniac/insomniac-docs.factor
rename to basis/logging/insomniac/insomniac-docs.factor
diff --git a/extra/logging/insomniac/insomniac.factor b/basis/logging/insomniac/insomniac.factor
similarity index 78%
rename from extra/logging/insomniac/insomniac.factor
rename to basis/logging/insomniac/insomniac.factor
index c7d1faf42e..79d9410994 100755
--- a/extra/logging/insomniac/insomniac.factor
+++ b/basis/logging/insomniac/insomniac.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: logging.analysis logging.server logging smtp kernel
 io.files io.streams.string namespaces alarms assocs
-io.encodings.utf8 accessors calendar qualified ;
+io.encodings.utf8 accessors calendar sequences qualified ;
 QUALIFIED: io.sockets
 IN: logging.insomniac
 
@@ -10,11 +10,7 @@ SYMBOL: insomniac-sender
 SYMBOL: insomniac-recipients
 
 : ?analyze-log ( service word-names -- string/f )
-    >r log-path 1 log# dup exists? [
-        utf8 file-lines r> [ analyze-log ] with-string-writer
-    ] [
-        r> 2drop f
-    ] if ;
+    [ analyze-log-file ] with-string-writer ;
 
 : email-subject ( service -- string )
     [
@@ -22,14 +18,14 @@ SYMBOL: insomniac-recipients
     ] "" make ;
 
 : (email-log-report) ( service word-names -- )
-    dupd ?analyze-log dup [
+    dupd ?analyze-log [ drop ] [
         <email>
             swap >>body
             insomniac-recipients get >>to
             insomniac-sender get >>from
             swap email-subject >>subject
         send-email
-    ] [ 2drop ] if ;
+    ] if-empty ;
 
 \ (email-log-report) NOTICE add-error-logging
 
diff --git a/extra/logging/insomniac/summary.txt b/basis/logging/insomniac/summary.txt
similarity index 100%
rename from extra/logging/insomniac/summary.txt
rename to basis/logging/insomniac/summary.txt
diff --git a/extra/logging/insomniac/tags.txt b/basis/logging/insomniac/tags.txt
similarity index 100%
rename from extra/logging/insomniac/tags.txt
rename to basis/logging/insomniac/tags.txt
diff --git a/extra/logging/logging-docs.factor b/basis/logging/logging-docs.factor
similarity index 97%
rename from extra/logging/logging-docs.factor
rename to basis/logging/logging-docs.factor
index df0b132ac8..f4bdbfc64d 100755
--- a/extra/logging/logging-docs.factor
+++ b/basis/logging/logging-docs.factor
@@ -115,9 +115,9 @@ ARTICLE: "logging" "Logging framework"
 { $subsection "logging.levels" }
 { $subsection "logging.messages" }
 { $subsection "logging.rotation" }
-{ $vocab-subsection "Log file parser" "logging.parser" }
-{ $vocab-subsection "Log analysis" "logging.analysis" }
-{ $vocab-subsection "Automated log analysis" "logging.insomniac" }
+{ $subsection "logging.parser" }
+{ $subsection "logging.analysis" }
+{ $subsection "logging.insomniac" }
 { $subsection "logging.server" } ;
 
 ABOUT: "logging"
diff --git a/extra/logging/logging-tests.factor b/basis/logging/logging-tests.factor
similarity index 100%
rename from extra/logging/logging-tests.factor
rename to basis/logging/logging-tests.factor
diff --git a/extra/logging/logging.factor b/basis/logging/logging.factor
similarity index 76%
rename from extra/logging/logging.factor
rename to basis/logging/logging.factor
index df03bf320b..aa4e46fad1 100755
--- a/extra/logging/logging.factor
+++ b/basis/logging/logging.factor
@@ -3,8 +3,8 @@
 USING: logging.server sequences namespaces concurrency.messaging
 words kernel arrays shuffle tools.annotations
 prettyprint.config prettyprint debugger io.streams.string
-splitting continuations effects arrays.lib parser strings
-combinators.lib quotations fry symbols accessors ;
+splitting continuations effects generalizations parser strings
+quotations fry symbols accessors ;
 IN: logging
 
 SYMBOLS: DEBUG NOTICE WARNING ERROR CRITICAL ;
@@ -23,7 +23,7 @@ SYMBOL: log-service
 : log-message ( msg word level -- )
     check-log-message
     log-service get dup [
-        [ [ string-lines ] [ word-name ] [ word-name ] tri* ] dip
+        [ [ string-lines ] [ name>> ] [ name>> ] tri* ] dip
         4array "log-message" send-to-log-server
     ] [
         4drop
@@ -42,22 +42,18 @@ SYMBOL: log-service
 
 <PRIVATE
 
-: one-string?
-    {
-        [ dup array? ]
-        [ dup length 1 = ]
-        [ dup first string? ]
-    } && nip ;
-
 : stack>message ( obj -- inputs>message )
-    dup one-string? [ first ] [
-        H{
-            { string-limit f }
-            { line-limit 1 }
-            { nesting-limit 3 }
-            { margin 0 }
-        } clone [ unparse ] bind
-    ] if ;
+    dup array? [ dup length 1 = [ first ] when ] when
+    dup string? [
+        [
+            boa-tuples? on
+            string-limit? off
+            1 line-limit set
+            3 nesting-limit set
+            0 margin set
+            unparse
+        ] with-scope
+    ] unless ;
 
 PRIVATE>
 
@@ -77,7 +73,7 @@ PRIVATE>
         3drop
     ] if ; inline
 
-: input# stack-effect in>> length ;
+: input# ( word -- n ) stack-effect in>> length ;
 
 : input-logging-quot ( quot word level -- quot' )
     rot [ [ input# ] keep ] 2dip '[ , , , log-stack @ ] ;
@@ -85,7 +81,7 @@ PRIVATE>
 : add-input-logging ( word level -- )
     [ input-logging-quot ] (define-logging) ;
 
-: output# stack-effect out>> length ;
+: output# ( word -- n ) stack-effect out>> length ;
 
 : output-logging-quot ( quot word level -- quot' )
     [ [ output# ] keep ] dip '[ @ , , , log-stack ] ;
@@ -121,4 +117,10 @@ PRIVATE>
     #! Syntax: name level
     CREATE-WORD dup scan-word
     '[ 1array stack>message , , log-message ]
-    define ; parsing
+    (( message -- )) define-declared ; parsing
+
+USE: vocabs.loader
+
+"logging.parser" require
+"logging.analysis" require
+"logging.insomniac" require
diff --git a/extra/logging/parser/authors.txt b/basis/logging/parser/authors.txt
similarity index 100%
rename from extra/logging/parser/authors.txt
rename to basis/logging/parser/authors.txt
diff --git a/extra/logging/parser/parser-docs.factor b/basis/logging/parser/parser-docs.factor
similarity index 92%
rename from extra/logging/parser/parser-docs.factor
rename to basis/logging/parser/parser-docs.factor
index dc80f9e87f..76c7ab6c90 100644
--- a/extra/logging/parser/parser-docs.factor
+++ b/basis/logging/parser/parser-docs.factor
@@ -3,7 +3,7 @@ USING: help.markup help.syntax assocs logging math calendar ;
 
 HELP: parse-log
 { $values { "lines" "a sequence of strings" } { "entries" "a sequence of log entries" } }
-{ $description "Parses a sequence of log entries. Malformed entries are printed out and ignore. The result is a sequence of arrays of the shape " { $snippet "{ timestamp level word-name message }" } ", where"
+{ $description "Parses a sequence of log entries. Malformed entries are printed out and ignore. The result is a sequence of arrays of the shape " { $snippet "{ timestamp level name>> message }" } ", where"
     { $list
         { { $snippet "timestamp" } " is a " { $link timestamp } }
         { { $snippet "level" } " is a log level; see " { $link "logging.levels" } }
diff --git a/basis/logging/parser/parser.factor b/basis/logging/parser/parser.factor
new file mode 100755
index 0000000000..2448243201
--- /dev/null
+++ b/basis/logging/parser/parser.factor
@@ -0,0 +1,84 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors peg peg.parsers memoize kernel sequences
+logging arrays words strings vectors io io.files io.encodings.utf8
+namespaces combinators logging.server calendar calendar.format ;
+IN: logging.parser
+
+TUPLE: log-entry date level word-name message ;
+
+: string-of ( quot -- parser )
+    satisfy repeat0 [ >string ] action ; inline
+
+SYMBOL: multiline
+
+: 'date' ( -- parser )
+    [ "]" member? not ] string-of [
+        dup multiline-header =
+        [ drop multiline ] [ rfc3339>timestamp ] if
+    ] action
+    "[" "]" surrounded-by ;
+
+: 'log-level' ( -- parser )
+    log-levels [
+        [ name>> token ] keep [ nip ] curry action
+    ] map choice ;
+
+: 'word-name' ( -- parser )
+    [ " :" member? not ] string-of ;
+
+SYMBOL: malformed
+
+: 'malformed-line' ( -- parser )
+    [ drop t ] string-of
+    [ log-entry new swap >>message malformed >>level ] action ;
+
+: 'log-message' ( -- parser )
+    [ drop t ] string-of
+    [ 1vector ] action ;
+
+: 'log-line' ( -- parser )
+    [
+        'date' ,
+        " " token hide ,
+        'log-level' ,
+        " " token hide ,
+        'word-name' ,
+        ": " token hide ,
+        'log-message' ,
+    ] seq* [ first4 log-entry boa ] action
+    'malformed-line' 2choice ;
+
+PEG: parse-log-line ( string -- entry ) 'log-line' ;
+
+: malformed? ( line -- ? )
+    level>> malformed eq? ;
+
+: multiline? ( line -- ? )
+    level>> multiline eq? ;
+
+: malformed-line ( line -- )
+    "Warning: malformed log line:" print
+    message>> print ;
+
+: add-multiline ( line -- )
+    building get empty? [
+        "Warning: log begins with multiline entry" print drop
+    ] [
+        message>> first building get peek message>> push
+    ] if ;
+
+: parse-log ( lines -- entries )
+    [
+        [
+            parse-log-line {
+                { [ dup malformed? ] [ malformed-line ] }
+                { [ dup multiline? ] [ add-multiline ] }
+                [ , ]
+            } cond
+        ] each
+    ] { } make ;
+
+: parse-log-file ( service -- entries )
+    log-path 1 log# dup exists?
+    [ utf8 file-lines parse-log ] [ drop f ] if ;
diff --git a/extra/logging/parser/summary.txt b/basis/logging/parser/summary.txt
similarity index 100%
rename from extra/logging/parser/summary.txt
rename to basis/logging/parser/summary.txt
diff --git a/extra/logging/parser/tags.txt b/basis/logging/parser/tags.txt
similarity index 100%
rename from extra/logging/parser/tags.txt
rename to basis/logging/parser/tags.txt
diff --git a/extra/logging/server/authors.txt b/basis/logging/server/authors.txt
similarity index 100%
rename from extra/logging/server/authors.txt
rename to basis/logging/server/authors.txt
diff --git a/extra/logging/server/server-docs.factor b/basis/logging/server/server-docs.factor
similarity index 100%
rename from extra/logging/server/server-docs.factor
rename to basis/logging/server/server-docs.factor
diff --git a/extra/logging/server/server.factor b/basis/logging/server/server.factor
similarity index 85%
rename from extra/logging/server/server.factor
rename to basis/logging/server/server.factor
index 2a4e34e015..d13ae616be 100755
--- a/extra/logging/server/server.factor
+++ b/basis/logging/server/server.factor
@@ -28,7 +28,7 @@ SYMBOL: log-files
 
 : multiline-header 20 CHAR: - <string> ; foldable
 
-: (write-message) ( msg word-name level multi? -- )
+: (write-message) ( msg name>> level multi? -- )
     [
         "[" write multiline-header write "] " write
     ] [
@@ -36,7 +36,7 @@ SYMBOL: log-files
     ] if
     write bl write ": " write print ;
 
-: write-message ( msg word-name level -- )
+: write-message ( msg name>> level -- )
     rot harvest {
         { [ dup empty? ] [ 3drop ] }
         { [ dup length 1 = ] [ first -rot f (write-message) ] }
@@ -47,7 +47,7 @@ SYMBOL: log-files
     } cond ;
 
 : (log-message) ( msg -- )
-    #! msg: { msg word-name level service }
+    #! msg: { msg name>> level service }
     first4 log-stream [ write-message flush ] with-output-stream* ;
 
 : try-dispose ( stream -- )
@@ -67,7 +67,7 @@ SYMBOL: log-files
 : ?delete-file ( path -- )
     dup exists? [ delete-file ] [ drop ] if ;
 
-: delete-oldest keep-logs log# ?delete-file ;
+: delete-oldest ( service -- ) keep-logs log# ?delete-file ;
 
 : ?move-file ( old new -- )
     over exists? [ move-file ] [ 2drop ] if ;
@@ -93,7 +93,12 @@ SYMBOL: log-files
     } case log-server-loop ;
 
 : log-server ( -- )
-    [ [ log-server-loop ] [ error. (close-logs) ] recover t ]
+    [
+        init-namespaces
+        [ log-server-loop ]
+        [ error. (close-logs) ]
+        recover t
+    ]
     "Log server" spawn-server
     "log-server" set-global ;
 
diff --git a/extra/logging/server/summary.txt b/basis/logging/server/summary.txt
similarity index 100%
rename from extra/logging/server/summary.txt
rename to basis/logging/server/summary.txt
diff --git a/extra/logging/server/tags.txt b/basis/logging/server/tags.txt
similarity index 100%
rename from extra/logging/server/tags.txt
rename to basis/logging/server/tags.txt
diff --git a/extra/logging/summary.txt b/basis/logging/summary.txt
similarity index 100%
rename from extra/logging/summary.txt
rename to basis/logging/summary.txt
diff --git a/extra/logging/tags.txt b/basis/logging/tags.txt
similarity index 100%
rename from extra/logging/tags.txt
rename to basis/logging/tags.txt
diff --git a/extra/help/tutorial/authors.txt b/basis/macros/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/help/tutorial/authors.txt
rename to basis/macros/authors.txt
diff --git a/basis/macros/expander/expander-tests.factor b/basis/macros/expander/expander-tests.factor
new file mode 100644
index 0000000000..fe0154b725
--- /dev/null
+++ b/basis/macros/expander/expander-tests.factor
@@ -0,0 +1,9 @@
+IN: macros.expander.tests
+USING: macros.expander tools.test math combinators.short-circuit
+kernel ;
+
+[ t ] [ 20 [ { [ integer? ] [ even? ] [ 10 > ] } 1&& ] expand-macros call ] unit-test
+
+[ f ] [ 15 [ { [ integer? ] [ even? ] [ 10 > ] } 1&& ] expand-macros call ] unit-test
+
+[ f ] [ 5.0 [ { [ integer? ] [ even? ] [ 10 > ] } 1&& ] expand-macros call ] unit-test
diff --git a/basis/macros/expander/expander.factor b/basis/macros/expander/expander.factor
new file mode 100644
index 0000000000..0a1703de58
--- /dev/null
+++ b/basis/macros/expander/expander.factor
@@ -0,0 +1,51 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences namespaces quotations accessors words
+continuations vectors effects math stack-checker.transforms ;
+IN: macros.expander
+
+GENERIC: expand-macros ( quot -- quot' )
+
+<PRIVATE
+
+SYMBOL: stack
+
+: begin ( -- ) V{ } clone stack set ;
+
+: end ( -- )
+    stack get
+    [ [ literalize , ] each ]
+    [ delete-all ]
+    bi ;
+
+: literal ( obj -- ) stack get push ;
+
+GENERIC: expand-macros* ( obj -- )
+
+: (expand-macros) ( quot -- )
+    [ expand-macros* ] each ;
+
+M: wrapper expand-macros* wrapped>> literal ;
+
+: expand-macro ( quot -- )
+    stack [ swap with-datastack >vector ] change
+    stack get pop >quotation end (expand-macros) ;
+
+: expand-macro? ( word -- quot ? )
+    dup [ "macro" word-prop ] [ "transform-quot" word-prop ] bi or dup [
+        swap [ stack-effect in>> length ] [ "transform-n" word-prop ] bi or
+        stack get length <=
+    ] [ 2drop f f ] if ;
+
+M: word expand-macros*
+    dup expand-macro? [ nip expand-macro ] [ drop end , ] if ;
+
+M: object expand-macros* literal ;
+
+M: callable expand-macros*
+    expand-macros literal ;
+
+M: callable expand-macros ( quot -- quot' )
+    [ begin (expand-macros) end ] [ ] make ;
+
+PRIVATE>
diff --git a/extra/macros/macros-docs.factor b/basis/macros/macros-docs.factor
similarity index 59%
rename from extra/macros/macros-docs.factor
rename to basis/macros/macros-docs.factor
index 44d1f32c8f..704cae459a 100644
--- a/extra/macros/macros-docs.factor
+++ b/basis/macros/macros-docs.factor
@@ -3,7 +3,7 @@ IN: macros
 
 HELP: MACRO:
 { $syntax "MACRO: word ( inputs... -- ) definition... ;" }
-{ $description "Defines a compile-time code transformation. If all inputs to the word are literal, then the macro body is invoked at compile-time to produce a quotation; this quotation is then spliced into the compiled code. If the inputs are not literal, or if the word is invoked from interpreted code, the macro body will execute every time and the result will be passed to " { $link call } "."
+{ $description "Defines a compile-time code transformation. If all inputs to the word are literal and the word calling the macro has a static stack effect, then the macro body is invoked at compile-time to produce a quotation; this quotation is then spliced into the compiled code. If the inputs are not literal, or if the word is invoked from a word which does not have a static stack effect, the macro body will execute every time and the result will be passed to " { $link call } "."
 $nl
 "The stack effect declaration must be present because it tells the compiler how many literal inputs to expect."
 }
@@ -17,23 +17,11 @@ $nl
 HELP: macro
 { $class-description "Class of words defined with " { $link POSTPONE: MACRO: } "." } ;
 
-HELP: macro-expand
-{ $values { "..." "inputs to a macro" } { "word" macro } { "quot" quotation } }
-{ $description "Expands a macro. Useful for debugging." }
-{ $examples
-    { $code "{ [ dup integer? ] [ dup 0 > ] [ dup 13 mod zero? ] } \ && macro-expand ." }
-} ;
-
 ARTICLE: "macros" "Macros"
 "The " { $vocab-link "macros" } " vocabulary implements macros in the Lisp sense; compile-time code transformers and generators. Macros can be used to calculate lookup tables and generate code at compile time, which can improve performance, the level of abstraction and simplify code."
 $nl
 "Defining new macros:"
 { $subsection POSTPONE: MACRO: }
-"Expanding macros for debugging purposes:"
-{ $subsection macro-expand }
-! "Two sample macros which implement short-circuiting boolean operators (as found in C, Java and similar languages):"
-! { $subsection && }
-! { $subsection || }
 "Macros are really just a very thin layer of syntax sugar over " { $link "compiler-transforms" } "." ;
 
 ABOUT: "macros"
diff --git a/extra/macros/macros-tests.factor b/basis/macros/macros-tests.factor
similarity index 65%
rename from extra/macros/macros-tests.factor
rename to basis/macros/macros-tests.factor
index d5011b0ecb..7b061ab2f5 100644
--- a/extra/macros/macros-tests.factor
+++ b/basis/macros/macros-tests.factor
@@ -1,6 +1,6 @@
 IN: macros.tests
 USING: tools.test macros math kernel arrays
-vectors io.streams.string prettyprint parser ;
+vectors io.streams.string prettyprint parser eval ;
 
 MACRO: see-test ( a b -- c ) + ;
 
@@ -12,3 +12,6 @@ unit-test
     "USING: math ;\nIN: macros.tests\n: see-test ( a b -- c ) - ;\n" dup eval
     [ \ see-test see ] with-string-writer =
 ] unit-test
+
+[ ] [ "USING: macros stack-checker kernel ; IN: hanging-macro MACRO: c ( quot -- ) infer drop [ ] ; : a ( -- ) [ a ] c ;" eval ] unit-test
+
diff --git a/extra/macros/macros.factor b/basis/macros/macros.factor
similarity index 60%
rename from extra/macros/macros.factor
rename to basis/macros/macros.factor
index 88bfd01fbe..0a6621f044 100755
--- a/extra/macros/macros.factor
+++ b/basis/macros/macros.factor
@@ -1,15 +1,15 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: parser kernel sequences words effects
-inference.transforms combinators assocs definitions quotations
-namespaces memoize ;
+stack-checker.transforms combinators assocs definitions
+quotations namespaces memoize accessors ;
 IN: macros
 
 : real-macro-effect ( word -- effect' )
-    "declared-effect" word-prop effect-in 1 <effect> ;
+    "declared-effect" word-prop in>> 1 <effect> ;
 
 : define-macro ( word definition -- )
-    over "declared-effect" word-prop effect-in length >r
+    over "declared-effect" word-prop in>> length >r
     2dup "macro" set-word-prop
     2dup over real-macro-effect memoize-quot [ call ] append define
     r> define-transform ;
@@ -24,12 +24,10 @@ M: macro definer drop \ MACRO: \ ; ;
 M: macro definition "macro" word-prop ;
 
 M: macro reset-word
-    [ f "macro" set-word-prop ] [ call-next-method ] bi ;
-
-: macro-expand ( ... word -- quot ) "macro" word-prop call ;
+    [ call-next-method ] [ f "macro" set-word-prop ] bi ;
 
 : n*quot ( n seq -- seq' ) <repetition> concat >quotation ;
 
-: saver \ >r <repetition> >quotation ;
+: saver ( n -- quot ) \ >r <repetition> >quotation ;
 
-: restorer \ r> <repetition> >quotation ;
+: restorer ( n -- quot ) \ r> <repetition> >quotation ;
diff --git a/extra/macros/summary.txt b/basis/macros/summary.txt
similarity index 100%
rename from extra/macros/summary.txt
rename to basis/macros/summary.txt
diff --git a/extra/macros/tags.txt b/basis/macros/tags.txt
similarity index 100%
rename from extra/macros/tags.txt
rename to basis/macros/tags.txt
diff --git a/extra/json/authors.txt b/basis/match/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/json/authors.txt
rename to basis/match/authors.txt
diff --git a/extra/match/match-docs.factor b/basis/match/match-docs.factor
similarity index 100%
rename from extra/match/match-docs.factor
rename to basis/match/match-docs.factor
diff --git a/extra/match/match-tests.factor b/basis/match/match-tests.factor
similarity index 100%
rename from extra/match/match-tests.factor
rename to basis/match/match-tests.factor
diff --git a/extra/match/match.factor b/basis/match/match.factor
similarity index 93%
rename from extra/match/match.factor
rename to basis/match/match.factor
index c5a063ab98..0ae285d20d 100755
--- a/extra/match/match.factor
+++ b/basis/match/match.factor
@@ -2,8 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 !
 ! Based on pattern matching code from Paul Graham's book 'On Lisp'.
-USING: parser kernel words namespaces sequences classes.tuple
-combinators macros assocs math ;
+USING: parser lexer kernel words namespaces sequences classes.tuple
+combinators macros assocs math effects ;
 IN: match
 
 SYMBOL: _
@@ -11,7 +11,7 @@ SYMBOL: _
 : define-match-var ( name -- )
     create-in
     dup t "match-var" set-word-prop
-    dup [ get ] curry define ;
+    dup [ get ] curry (( -- value )) define-declared ;
 
 : define-match-vars ( seq -- )
     [ define-match-var ] each ;
diff --git a/extra/match/summary.txt b/basis/match/summary.txt
similarity index 100%
rename from extra/match/summary.txt
rename to basis/match/summary.txt
diff --git a/extra/match/tags.txt b/basis/match/tags.txt
similarity index 100%
rename from extra/match/tags.txt
rename to basis/match/tags.txt
diff --git a/extra/math/ranges/authors.txt b/basis/math/bitwise/authors.txt
similarity index 100%
rename from extra/math/ranges/authors.txt
rename to basis/math/bitwise/authors.txt
diff --git a/core/math/bitfields/bitfields-docs.factor b/basis/math/bitwise/bitwise-docs.factor
similarity index 75%
rename from core/math/bitfields/bitfields-docs.factor
rename to basis/math/bitwise/bitwise-docs.factor
index f9d16d2b6c..247523369b 100644
--- a/core/math/bitfields/bitfields-docs.factor
+++ b/basis/math/bitwise/bitwise-docs.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.syntax math ;
-IN: math.bitfields
+IN: math.bitwise
 
 ARTICLE: "math-bitfields" "Constructing bit fields"
 "Some applications, such as binary communication protocols and assemblers, need to construct integers from elaborate bit field specifications. Hand-coding this using " { $link shift } " and " { $link bitor } " results in repetitive code. A higher-level facility exists to factor out this repetition:"
@@ -35,3 +35,16 @@ HELP: bitfield
         "    } ;"
     }
 } ;
+
+HELP: bits 
+{ $values { "m" integer } { "n" integer } { "m'" integer } }
+{ $description "Keep only n bits from the integer m." }
+{ $example "USING: math.bitwise prettyprint ;" "HEX: 123abcdef 16 bits .h" "cdef" } ;
+
+HELP: bitroll
+{ $values { "x" "an integer (input)" } { "s" "an integer (shift)" } { "w" "an integer (wrap)" } { "y" integer } }
+{ $description "Roll n by s bits to the left, wrapping around after w bits." }
+{ $examples
+    { $example "USING: math.bitwise prettyprint ;" "1 -1 32 bitroll .b" "10000000000000000000000000000000" }
+    { $example "USING: math.bitwise prettyprint ;" "HEX: ffff0000 8 32 bitroll .h" "ff0000ff" }
+} ;
diff --git a/basis/math/bitwise/bitwise-tests.factor b/basis/math/bitwise/bitwise-tests.factor
new file mode 100755
index 0000000000..8b13cb23b3
--- /dev/null
+++ b/basis/math/bitwise/bitwise-tests.factor
@@ -0,0 +1,29 @@
+USING: accessors math math.bitwise tools.test kernel words ;
+IN: math.bitwise.tests
+
+[ 0 ] [ 1 0 0 bitroll ] unit-test
+[ 1 ] [ 1 0 1 bitroll ] unit-test
+[ 1 ] [ 1 1 1 bitroll ] unit-test
+[ 1 ] [ 1 0 2 bitroll ] unit-test
+[ 1 ] [ 1 0 1 bitroll ] unit-test
+[ 1 ] [ 1 20 2 bitroll ] unit-test
+[ 1 ] [ 1 8 8 bitroll ] unit-test
+[ 1 ] [ 1 -8 8 bitroll ] unit-test
+[ 1 ] [ 1 -32 8 bitroll ] unit-test
+[ 128 ] [ 1 -1 8 bitroll ] unit-test
+[ 8 ] [ 1 3 32 bitroll ] unit-test
+
+[ 0 ] [ { } bitfield ] unit-test
+[ 256 ] [ 1 { 8 } bitfield ] unit-test
+[ 268 ] [ 3 1 { 8 2 } bitfield ] unit-test
+[ 268 ] [ 1 { 8 { 3 2 } } bitfield ] unit-test
+[ 512 ] [ 1 { { 1+ 8 } } bitfield ] unit-test
+
+: a 1 ; inline
+: b 2 ; inline
+
+: foo ( -- flags ) { a b } flags ;
+
+[ 3 ] [ foo ] unit-test
+[ 3 ] [ { a b } flags ] unit-test
+\ foo must-infer
diff --git a/basis/math/bitwise/bitwise.factor b/basis/math/bitwise/bitwise.factor
new file mode 100644
index 0000000000..60c585c779
--- /dev/null
+++ b/basis/math/bitwise/bitwise.factor
@@ -0,0 +1,94 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays kernel math math.functions sequences
+sequences.private words namespaces macros hints
+combinators fry ;
+IN: math.bitwise
+
+! utilities
+: clear-bit ( x n -- y ) 2^ bitnot bitand ; inline
+: set-bit ( x n -- y ) 2^ bitor ; inline
+: bit-clear? ( x n -- ? ) 2^ bitand zero? ; inline
+: unmask ( x n -- ? ) bitnot bitand ; inline
+: unmask? ( x n -- ? ) unmask 0 > ; inline
+: mask ( x n -- ? ) bitand ; inline
+: mask? ( x n -- ? ) mask 0 > ; inline
+: wrap ( m n -- m' ) 1- bitand ; inline
+: bits ( m n -- m' ) 2^ wrap ; inline
+: mask-bit ( m n -- m' ) 1- 2^ mask ; inline
+
+: shift-mod ( n s w -- n )
+    >r shift r> 2^ wrap ; inline
+
+: bitroll ( x s w -- y )
+     [ wrap ] keep
+     [ shift-mod ]
+     [ [ - ] keep shift-mod ] 3bi bitor ; inline
+
+: bitroll-32 ( n s -- n' ) 32 bitroll ;
+
+HINTS: bitroll-32 bignum fixnum ;
+
+: bitroll-64 ( n s -- n' ) 64 bitroll ;
+
+HINTS: bitroll-64 bignum fixnum ;
+
+! 32-bit arithmetic
+: w+ ( int int -- int ) + 32 bits ; inline
+: w- ( int int -- int ) - 32 bits ; inline
+: w* ( int int -- int ) * 32 bits ; inline
+
+! flags
+MACRO: flags ( values -- )
+    [ 0 ] [ [ execute bitor ] curry compose ] reduce ;
+
+! bitfield
+<PRIVATE
+
+GENERIC: (bitfield-quot) ( spec -- quot )
+
+M: integer (bitfield-quot) ( spec -- quot )
+    [ swapd shift bitor ] curry ;
+
+M: pair (bitfield-quot) ( spec -- quot )
+    first2 over word? [ >r swapd execute r> ] [ ] ?
+    [ shift bitor ] append 2curry ;
+
+PRIVATE>
+
+MACRO: bitfield ( bitspec -- )
+    [ 0 ] [ (bitfield-quot) compose ] reduce ;
+
+! bit-count
+<PRIVATE
+
+DEFER: byte-bit-count
+
+<<
+
+\ byte-bit-count
+256 [
+    0 swap [ [ 1+ ] when ] each-bit
+] B{ } map-as '[ HEX: ff bitand , nth-unsafe ] define-inline
+
+>>
+
+GENERIC: (bit-count) ( x -- n )
+
+M: fixnum (bit-count)
+    {
+        [           byte-bit-count ]
+        [ -8  shift byte-bit-count ]
+        [ -16 shift byte-bit-count ]
+        [ -24 shift byte-bit-count ]
+    } cleave + + + ;
+
+M: bignum (bit-count)
+    dup 0 = [ drop 0 ] [
+        [ byte-bit-count ] [ -8 shift (bit-count) ] bi +
+    ] if ;
+
+PRIVATE>
+
+: bit-count ( x -- n )
+    dup 0 >= [ (bit-count) ] [ bitnot (bit-count) ] if ; inline
diff --git a/basis/math/bitwise/summary.txt b/basis/math/bitwise/summary.txt
new file mode 100644
index 0000000000..23f73db76c
--- /dev/null
+++ b/basis/math/bitwise/summary.txt
@@ -0,0 +1 @@
+Bitwise arithmetic utilities
diff --git a/extra/hints/authors.txt b/basis/math/complex/authors.txt
similarity index 100%
rename from extra/hints/authors.txt
rename to basis/math/complex/authors.txt
diff --git a/extra/math/complex/complex-docs.factor b/basis/math/complex/complex-docs.factor
similarity index 75%
rename from extra/math/complex/complex-docs.factor
rename to basis/math/complex/complex-docs.factor
index 82cb14c391..bed3a655b1 100755
--- a/extra/math/complex/complex-docs.factor
+++ b/basis/math/complex/complex-docs.factor
@@ -2,23 +2,29 @@ USING: help.markup help.syntax math math.private math.functions
 math.complex.private ;
 IN: math.complex
 
+ARTICLE: "complex-numbers-zero" "Embedding of real numbers in complex numbers"
+"Constructing a complex number with an imaginary component equal to an integer zero simply returns the real number corresponding to the real component:"
+{ $example "USING: math prettyprint ;" "C{ 1 2 } C{ 3 -2 } + ." "4" }
+"Constructing a complex number with an imaginary component equal to floating point zero will still output a new complex number, however:"
+{ $example "USING: math prettyprint ;" "C{ 0.0 2.0 } C{ 0.0 1.0 } * ." "C{ 2.0 0.0 }" }
+"Unlike math, where all real numbers are also complex numbers, Factor only considers a number to be a complex number if its imaginary part is non-zero. However, complex number operations are fully supported for real numbers; they are treated as having an imaginary part of zero." ;
+
 ARTICLE: "complex-numbers" "Complex numbers"
 { $subsection complex }
 "Complex numbers arise as solutions to quadratic equations whose graph does not intersect the " { $emphasis "x" } " axis. Their literal syntax is covered in " { $link "syntax-complex-numbers" } "."
 $nl
-"Unlike math, where all real numbers are also complex numbers, Factor only considers a number to be a complex number if its imaginary part is non-zero. However, complex number operations are fully supported for real numbers; they are treated as having an imaginary part of zero."
-$nl
 "Complex numbers can be taken apart:"
 { $subsection real-part }
 { $subsection imaginary-part }
 { $subsection >rect }
 "Complex numbers can be constructed from real numbers:"
 { $subsection rect> }
+{ $subsection "complex-numbers-zero" }
 { $see-also "syntax-complex-numbers" } ;
 HELP: complex
 { $class-description "The class of complex numbers with non-zero imaginary part." } ;
 
-ABOUT: "math.complex"
+ABOUT: "complex-numbers"
 
 HELP: 2>rect
 { $values { "x" "a complex number" } { "y" "a complex number" } { "xr" "real part of " { $snippet "x" } } { "xi" "imaginary part of " { $snippet "x" } } { "yr" "real part of " { $snippet "y" } } { "yi" "imaginary part of " { $snippet "y" } } }
diff --git a/extra/math/complex/complex-tests.factor b/basis/math/complex/complex-tests.factor
similarity index 79%
rename from extra/math/complex/complex-tests.factor
rename to basis/math/complex/complex-tests.factor
index 063871ce5b..4b0481eca1 100755
--- a/extra/math/complex/complex-tests.factor
+++ b/basis/math/complex/complex-tests.factor
@@ -5,9 +5,14 @@ IN: math.complex.tests
 [ 1 C{ 0 1 } rect> ] must-fail
 [ C{ 0 1 } 1 rect> ] must-fail
 
-[ f ] [ C{ 5 12.5 } 5  = ] unit-test
-[ t ] [ C{ 1.0 2.0 } C{ 1 2 }  = ] unit-test
-[ f ] [ C{ 1.0 2.3 } C{ 1 2 }  = ] unit-test
+[ f ] [ C{ 5 12.5 } 5 = ] unit-test
+[ f ] [ C{ 5 12.5 } 5 number= ] unit-test
+
+[ f ] [ C{ 1.0 2.0 } C{ 1 2 } = ] unit-test
+[ t ] [ C{ 1.0 2.0 } C{ 1 2 } number= ] unit-test
+
+[ f ] [ C{ 1.0 2.3 } C{ 1 2 } = ] unit-test
+[ f ] [ C{ 1.0 2.3 } C{ 1 2 } number= ] unit-test
 
 [ C{ 2 5 } ] [ 2 5  rect> ] unit-test
 [ 2 5 ] [ C{ 2 5 }  >rect ] unit-test
@@ -30,7 +35,7 @@ IN: math.complex.tests
 
 [ C{ 0 1 } ] [ C{ 0 1 } 1  * ] unit-test
 [ C{ 0 1 } ] [ 1 C{ 0 1 }  * ] unit-test
-[ C{ 0 1.0 } ] [ 1.0 C{ 0 1 }  * ] unit-test
+[ C{ 0.0 1.0 } ] [ 1.0 C{ 0 1 }  * ] unit-test
 [ -1 ] [ C{ 0 1 } C{ 0 1 }  * ] unit-test
 [ C{ 0 1 } ] [ 1 C{ 0 1 }  * ] unit-test
 [ C{ 0 1 } ] [ C{ 0 1 } 1  * ] unit-test
@@ -45,18 +50,18 @@ IN: math.complex.tests
 
 [ C{ -3 4 } ] [ C{ 3 -4 }  neg ] unit-test
 
-[ 5 ] [ C{ 3 4 } abs ] unit-test
-[ 5 ] [ -5.0 abs ] unit-test
+[ 5.0 ] [ C{ 3 4 } abs ] unit-test
+[ 5.0 ] [ -5.0 abs ] unit-test
 
 ! Make sure arguments are sane
-[ 0 ] [ 0 arg ] unit-test
-[ 0 ] [ 1 arg ] unit-test
+[ 0.0 ] [ 0 arg ] unit-test
+[ 0.0 ] [ 1 arg ] unit-test
 [ t ] [ -1 arg 3.14 3.15 between? ] unit-test
 [ t ] [ C{ 0 1 } arg 1.57 1.58 between? ] unit-test
 [ t ] [ C{ 0 -1 } arg -1.58 -1.57 between? ] unit-test
 
-[ 1 0 ] [ 1 >polar ] unit-test
-[ 1 ] [ -1 >polar drop ] unit-test
+[ 1.0 0.0 ] [ 1 >polar ] unit-test
+[ 1.0 ] [ -1 >polar drop ] unit-test
 [ t ] [ -1 >polar nip 3.14 3.15 between? ] unit-test
 
 ! I broke something
diff --git a/extra/math/complex/complex.factor b/basis/math/complex/complex.factor
similarity index 74%
rename from extra/math/complex/complex.factor
rename to basis/math/complex/complex.factor
index 588f34d3fc..acc8a9d6d6 100755
--- a/extra/math/complex/complex.factor
+++ b/basis/math/complex/complex.factor
@@ -1,19 +1,30 @@
-! Copyright (C) 2006 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-IN: math.complex.private
-USING: kernel kernel.private math math.private
+USING: accessors kernel kernel.private math math.private
 math.libm math.functions prettyprint.backend arrays
 math.functions.private sequences parser ;
+IN: math.complex.private
 
 M: real real-part ;
 M: real imaginary-part drop 0 ;
 
+M: complex real-part real>> ;
+M: complex imaginary-part imaginary>> ;
+
 M: complex absq >rect [ sq ] bi@ + ;
 
 : 2>rect ( x y -- xr yr xi yi )
     [ [ real-part ] bi@ ] 2keep
     [ imaginary-part ] bi@ ; inline
 
+M: complex hashcode*
+    nip >rect [ hashcode ] bi@ bitxor ;
+
+M: complex equal?
+    over complex? [
+        2>rect = [ = ] [ 2drop f ] if
+    ] [ 2drop f ] if ;
+
 M: complex number=
     2>rect number= [ number= ] [ 2drop f ] if ;
 
@@ -33,12 +44,10 @@ M: complex abs absq >float fsqrt ;
 
 M: complex sqrt >polar swap fsqrt swap 2.0 / polar> ;
 
-M: complex hashcode* nip >rect >fixnum swap >fixnum bitxor ;
-
 IN: syntax
 
 : C{ \ } [ first2 rect> ] parse-literal ; parsing
 
 M: complex pprint-delims drop \ C{ \ } ;
-
 M: complex >pprint-sequence >rect 2array ;
+M: complex pprint* pprint-object ;
diff --git a/extra/math/complex/summary.txt b/basis/math/complex/summary.txt
similarity index 100%
rename from extra/math/complex/summary.txt
rename to basis/math/complex/summary.txt
diff --git a/extra/http/authors.txt b/basis/math/constants/authors.txt
similarity index 100%
rename from extra/http/authors.txt
rename to basis/math/constants/authors.txt
diff --git a/extra/math/constants/constants-docs.factor b/basis/math/constants/constants-docs.factor
similarity index 100%
rename from extra/math/constants/constants-docs.factor
rename to basis/math/constants/constants-docs.factor
diff --git a/extra/math/constants/constants.factor b/basis/math/constants/constants.factor
similarity index 64%
rename from extra/math/constants/constants.factor
rename to basis/math/constants/constants.factor
index c207eaa63c..118a8e8197 100755
--- a/extra/math/constants/constants.factor
+++ b/basis/math/constants/constants.factor
@@ -1,5 +1,6 @@
-! Copyright (C) 2004, 2005 Slava Pestov.
+! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
+USE: math
 IN: math.constants
 
 : e ( -- e ) 2.7182818284590452354 ; inline
@@ -7,3 +8,5 @@ IN: math.constants
 : phi ( -- phi ) 1.61803398874989484820 ; inline
 : pi ( -- pi ) 3.14159265358979323846 ; inline
 : epsilon ( -- epsilon ) 2.2204460492503131e-16 ; inline
+: smallest-float ( -- x ) HEX: 1 bits>double ; foldable
+: largest-float ( -- x ) HEX: 7fefffffffffffff bits>double ; foldable
diff --git a/extra/math/constants/summary.txt b/basis/math/constants/summary.txt
similarity index 100%
rename from extra/math/constants/summary.txt
rename to basis/math/constants/summary.txt
diff --git a/extra/http/client/authors.txt b/basis/math/functions/authors.txt
similarity index 100%
rename from extra/http/client/authors.txt
rename to basis/math/functions/authors.txt
diff --git a/extra/math/functions/functions-docs.factor b/basis/math/functions/functions-docs.factor
similarity index 98%
rename from extra/math/functions/functions-docs.factor
rename to basis/math/functions/functions-docs.factor
index c023258105..bbfd8f41be 100755
--- a/extra/math/functions/functions-docs.factor
+++ b/basis/math/functions/functions-docs.factor
@@ -106,7 +106,7 @@ HELP: (rect>)
 
 HELP: rect>
 { $values { "x" real } { "y" real } { "z" number } }
-{ $description "Creates a complex number from real and imaginary components." } ;
+{ $description "Creates a complex number from real and imaginary components. If " { $snippet "z" } " is an integer zero, this will simply output " { $snippet "x" } "." } ;
 
 HELP: >rect
 { $values { "z" number } { "x" real } { "y" real } }
diff --git a/extra/math/functions/functions-tests.factor b/basis/math/functions/functions-tests.factor
similarity index 90%
rename from extra/math/functions/functions-tests.factor
rename to basis/math/functions/functions-tests.factor
index 6176c12d21..d5bdac761f 100755
--- a/extra/math/functions/functions-tests.factor
+++ b/basis/math/functions/functions-tests.factor
@@ -12,10 +12,11 @@ IN: math.functions.tests
 [ 0.25 ] [ 2.0 -2.0 fpow ] unit-test
 
 [ 4.0 ] [ 16 sqrt ] unit-test
-[ C{ 0 4.0 } ] [ -16 sqrt ] unit-test
+[ 2.0 ] [ 4.0 0.5 ^ ] unit-test
+[ C{ 0.0 4.0 } ] [ -16 sqrt ] unit-test
 
-[ 4.0 ] [ 2 2 ^ ] unit-test
-[ 0.25 ] [ 2 -2 ^ ] unit-test
+[ 4 ] [ 2 2 ^ ] unit-test
+[ 1/4 ] [ 2 -2 ^ ] unit-test
 [ t ] [ 2 0.5 ^ 2 ^ 2 2.00001 between? ] unit-test
 [ t ] [ e pi i* ^ real-part -1.0 = ] unit-test
 [ t ] [ e pi i* ^ imaginary-part -0.00001 0.00001 between? ] unit-test
@@ -27,6 +28,8 @@ IN: math.functions.tests
 [ 0 ] [ 0 3.0 ^ ] unit-test
 [ 0 ] [ 0 3 ^ ] unit-test
 
+[ 0.0 ] [ 1 log ] unit-test
+
 [ 1.0 ] [ 0 cosh ] unit-test
 [ 0.0 ] [ 1 acosh ] unit-test
             
@@ -44,7 +47,10 @@ IN: math.functions.tests
 
 [ t ] [ 10 asin sin 10 1.e-10 ~ ] unit-test
 [ t ] [ -1 sqrt neg dup acos cos 1.e-10 ~ ] unit-test
+[ t ] [ -100 atan tan -100 1.e-10 ~ ] unit-test
 [ t ] [ 10 asinh sinh 10 1.e-10 ~ ] unit-test
+[ t ] [ 10 atanh tanh 10 1.e-10 ~ ] unit-test
+[ t ] [ 0.5 atanh tanh 0.5 1.e-10 ~ ] unit-test
 
 [ 100 ] [ 100 100 gcd nip ] unit-test
 [ 100 ] [ 1000 100 gcd nip ] unit-test
@@ -70,7 +76,7 @@ IN: math.functions.tests
     gcd nip
 ] unit-test
 
-: verify-gcd
+: verify-gcd ( a b -- ? )
     2dup gcd
     >r rot * swap rem r> = ; 
 
diff --git a/extra/math/functions/functions.factor b/basis/math/functions/functions.factor
similarity index 79%
rename from extra/math/functions/functions.factor
rename to basis/math/functions/functions.factor
index bb43e4a721..8516292e9d 100755
--- a/extra/math/functions/functions.factor
+++ b/basis/math/functions/functions.factor
@@ -7,7 +7,7 @@ IN: math.functions
 <PRIVATE
 
 : (rect>) ( x y -- z )
-    dup zero? [ drop ] [ <complex> ] if ; inline
+    dup 0 = [ drop ] [ <complex> ] if ; inline
 
 PRIVATE>
 
@@ -23,30 +23,58 @@ GENERIC: sqrt ( x -- y ) foldable
 M: real sqrt
     >float dup 0.0 < [ neg fsqrt 0.0 swap rect> ] [ fsqrt ] if ;
 
-: each-bit ( n quot -- )
-    over 0 number= pick -1 number= or [
+: each-bit ( n quot: ( ? -- ) -- )
+    over 0 = pick -1 = or [
         2drop
     ] [
         2dup >r >r >r odd? r> call r> 2/ r> each-bit
-    ] if ; inline
-
-GENERIC: (^) ( x y -- z ) foldable
+    ] if ; inline recursive
 
 : ^n ( z w -- z^w )
     1 swap [
         [ dupd * ] when >r sq r>
     ] each-bit nip ; inline
 
-M: integer (^)
-    dup 0 < [ neg ^n recip ] [ ^n ] if ;
+: integer^ ( x y -- z )
+    dup 0 > [ ^n ] [ neg ^n recip ] if ; inline
+
+: >rect ( z -- x y )
+    [ real-part ] [ imaginary-part ] bi ; inline
+
+: >float-rect ( z -- x y )
+    >rect [ >float ] bi@ ; inline
+
+: >polar ( z -- abs arg )
+    >float-rect [ [ sq ] bi@ + fsqrt ] [ swap fatan2 ] 2bi ;
+    inline
+
+: cis ( arg -- z ) dup fcos swap fsin rect> ; inline
+
+: polar> ( abs arg -- z ) cis * ; inline
+
+: ^mag ( w abs arg -- magnitude )
+    >r >r >float-rect swap r> swap fpow r> rot * fexp /f ;
+    inline
+
+: ^theta ( w abs arg -- theta )
+    >r >r >float-rect r> flog * swap r> * + ; inline
+
+: ^complex ( x y -- z )
+    swap >polar [ ^mag ] [ ^theta ] 3bi polar> ; inline
+
+: real^? ( x y -- ? )
+    2dup [ real? ] both? [ drop 0 >= ] [ 2drop f ] if ; inline
+
+: 0^ ( x -- z )
+    dup zero? [ drop 0./0. ] [ 0 < 1./0. 0 ? ] if ; inline
 
 : ^ ( x y -- z )
-    over zero? [
-        dup zero?
-        [ 2drop 0.0 0.0 / ] [ 0 < [ drop 1.0 0.0 / ] when ] if
-    ] [
-        (^)
-    ] if ; inline
+    {
+        { [ over zero? ] [ nip 0^ ] }
+        { [ dup integer? ] [ integer^ ] }
+        { [ 2dup real^? ] [ fpow ] }
+        [ ^complex ]
+    } cond ;
 
 : (^mod) ( n x y -- z )
     1 swap [
@@ -98,42 +126,27 @@ M: real absq sq ;
         [ ~abs ]
     } cond ;
 
-: >rect ( z -- x y ) dup real-part swap imaginary-part ; inline
-
 : conjugate ( z -- z* ) >rect neg rect> ; inline
 
-: >float-rect ( z -- x y )
-    >rect swap >float swap >float ; inline
-
 : arg ( z -- arg ) >float-rect swap fatan2 ; inline
 
-: >polar ( z -- abs arg )
-    >float-rect [ [ sq ] bi@ + fsqrt ] 2keep swap fatan2 ;
-    inline
-
-: cis ( arg -- z ) dup fcos swap fsin rect> ; inline
-
-: polar> ( abs arg -- z ) cis * ; inline
-
-: ^mag ( w abs arg -- magnitude )
-    >r >r >float-rect swap r> swap fpow r> rot * fexp /f ;
-    inline
-
-: ^theta ( w abs arg -- theta )
-    >r >r >float-rect r> flog * swap r> * + ; inline
-
-M: number (^)
-    swap >polar 3dup ^theta >r ^mag r> polar> ;
-
 : [-1,1]? ( x -- ? )
     dup complex? [ drop f ] [ abs 1 <= ] if ; inline
 
 : >=1? ( x -- ? )
     dup complex? [ drop f ] [ 1 >= ] if ; inline
 
-: exp ( x -- y ) >rect swap fexp swap polar> ; inline
+GENERIC: exp ( x -- y )
 
-: log ( x -- y ) >polar swap flog swap rect> ; inline
+M: real exp fexp ;
+
+M: complex exp >rect swap fexp swap polar> ;
+
+GENERIC: log ( x -- y )
+
+M: real log dup 0.0 >= [ flog ] [ 0.0 rect> log ] if ;
+
+M: complex log >polar swap flog swap rect> ;
 
 : cos ( x -- y )
     dup complex? [
@@ -182,17 +195,17 @@ M: number (^)
 : coth ( x -- y ) tanh recip ; inline
 
 : acosh ( x -- y )
-    dup >=1? [ facosh ] [ dup sq 1- sqrt + log ] if ; inline
+    dup sq 1- sqrt + log ; inline
 
 : asech ( x -- y ) recip acosh ; inline
 
 : asinh ( x -- y )
-    dup complex? [ dup sq 1+ sqrt + log ] [ fasinh ] if ; inline
+    dup sq 1+ sqrt + log ; inline
 
 : acosech ( x -- y ) recip asinh ; inline
 
 : atanh ( x -- y )
-    dup [-1,1]? [ fatanh ] [ dup 1+ swap 1- neg / log 2 / ] if ; inline
+    dup 1+ swap 1- neg / log 2 / ; inline
 
 : acoth ( x -- y ) recip atanh ; inline
 
diff --git a/extra/math/functions/summary.txt b/basis/math/functions/summary.txt
similarity index 100%
rename from extra/math/functions/summary.txt
rename to basis/math/functions/summary.txt
diff --git a/basis/math/geometry/geometry.factor b/basis/math/geometry/geometry.factor
new file mode 100644
index 0000000000..d82478dd7f
--- /dev/null
+++ b/basis/math/geometry/geometry.factor
@@ -0,0 +1,11 @@
+
+IN: math.geometry
+
+GENERIC: width  ( object -- width )
+GENERIC: height ( object -- width )
+
+GENERIC# set-width!  1 ( object width  -- object )
+GENERIC# set-height! 1 ( object height -- object )
+
+GENERIC# set-x! 1 ( object x -- object )
+GENERIC# set-y! 1 ( object y -- object )
\ No newline at end of file
diff --git a/basis/math/geometry/rect/rect-docs.factor b/basis/math/geometry/rect/rect-docs.factor
new file mode 100644
index 0000000000..a892940363
--- /dev/null
+++ b/basis/math/geometry/rect/rect-docs.factor
@@ -0,0 +1,49 @@
+USING: help.markup help.syntax ;
+
+IN: math.geometry.rect
+
+HELP: rect
+{ $class-description "A rectangle with the following slots:"
+    { $list
+        { { $link rect-loc } " - the top-left corner of the rectangle as an x/y pair" }
+        { { $link rect-dim } " - the dimensions of the rectangle as a width/height pair" }
+    }
+    "Rectangles are constructed by calling " { $link <rect> } " and " { $link <extent-rect> } "."
+} ;
+
+HELP: <rect> ( loc dim -- rect )
+{ $values { "loc" "a pair of integers" } { "dim" "a pair of integers" } { "rect" "a new " { $link rect } } }
+{ $description "Creates a new rectangle with the specified top-left location and dimensions." } ;
+
+{ <zero-rect> <rect> <extent-rect> } related-words
+
+HELP: rect-bounds
+{ $values { "rect" rect } { "loc" "a pair of integers" } { "dim" "a pair of integers" } }
+{ $description "Outputs the location and dimensions of a rectangle." } ;
+
+{ rect-bounds rect-extent } related-words
+
+HELP: <extent-rect> ( loc ext -- rect )
+{ $values { "loc" "a pair of integers" } { "ext" "a pair of integers" } { "rect" "a new " { $link rect } } }
+{ $description "Creates a new rectangle with the specified top-left and bottom-right corner locations." } ;
+
+HELP: rect-extent
+{ $values { "rect" rect } { "loc" "a pair of integers" } { "ext" "a pair of integers" } }
+{ $description "Outputs the location of the top-left and bottom-right corners of a rectangle." } ;
+
+HELP: offset-rect
+{ $values { "rect" rect } { "loc" "a pair of integers" } { "newrect" "a new " { $link rect } } }
+{ $description "Creates a new rectangle with the same dimensions, and top-left corner translated by " { $snippet "loc" } "." } ;
+
+HELP: rect-intersect
+{ $values { "rect1" rect } { "rect2" rect } { "newrect" "a new " { $link rect } } }
+{ $description "Computes the intersection of two rectangles." } ;
+
+HELP: intersects?
+{ $values { "rect/point" "a " { $link rect } " or a pair of integers" } { "rect" rect } { "?" "a boolean" } }
+{ $description "Tests if two rectangles (or a point and a rectangle, respectively) have a non-empty intersection." } ;
+
+HELP: <zero-rect>
+{ $values { "rect" "a new " { $link rect } } }
+{ $description "Creates a rectangle located at the origin with zero dimensions." } ;
+
diff --git a/basis/math/geometry/rect/rect-tests.factor b/basis/math/geometry/rect/rect-tests.factor
new file mode 100644
index 0000000000..0d2a8bc1ea
--- /dev/null
+++ b/basis/math/geometry/rect/rect-tests.factor
@@ -0,0 +1,37 @@
+
+USING: tools.test math.geometry.rect ;
+
+IN: math.geometry.rect.tests
+
+[ T{ rect f { 10 10 } { 20 20 } } ]
+[
+    T{ rect f { 10 10 } { 50 50 } }
+    T{ rect f { -10 -10 } { 40 40 } }
+    rect-intersect
+] unit-test
+
+[ T{ rect f { 200 200 } { 0 0 } } ]
+[
+    T{ rect f { 100 100 } { 50 50 } }
+    T{ rect f { 200 200 } { 40 40 } }
+    rect-intersect
+] unit-test
+
+[ f ] [
+    T{ rect f { 100 100 } { 50 50 } }
+    T{ rect f { 200 200 } { 40 40 } }
+    intersects?
+] unit-test
+
+[ t ] [
+    T{ rect f { 100 100 } { 50 50 } }
+    T{ rect f { 120 120 } { 40 40 } }
+    intersects?
+] unit-test
+
+[ f ] [
+    T{ rect f { 1000 100 } { 50 50 } }
+    T{ rect f { 120 120 } { 40 40 } }
+    intersects?
+] unit-test
+
diff --git a/basis/math/geometry/rect/rect.factor b/basis/math/geometry/rect/rect.factor
new file mode 100644
index 0000000000..dd634f4a3b
--- /dev/null
+++ b/basis/math/geometry/rect/rect.factor
@@ -0,0 +1,68 @@
+
+USING: kernel arrays sequences
+       math math.points math.vectors math.geometry
+       accessors ;
+
+IN: math.geometry.rect
+
+TUPLE: rect loc dim ;
+
+GENERIC: rect-loc ( obj -- loc )
+GENERIC: rect-dim ( obj -- dim )
+
+: init-rect ( rect -- rect ) { 0 0 } clone >>loc { 0 0 } clone >>dim ;
+
+: <rect> ( loc dim -- rect ) rect boa ;
+
+: <zero-rect> ( -- rect ) rect new init-rect ;
+
+M: array rect-loc ;
+
+M: array rect-dim drop { 0 0 } ;
+
+M: rect rect-loc loc>> ;
+
+M: rect rect-dim dim>> ;
+
+: rect-bounds ( rect -- loc dim ) dup rect-loc swap rect-dim ;
+
+: rect-extent ( rect -- loc ext ) rect-bounds over v+ ;
+
+: 2rect-extent ( rect rect -- loc1 loc2 ext1 ext2 )
+    [ rect-extent ] bi@ swapd ;
+
+: <extent-rect> ( loc ext -- rect ) over [v-] <rect> ;
+
+: offset-rect ( rect loc -- newrect )
+    over rect-loc v+ swap rect-dim <rect> ;
+
+: (rect-intersect) ( rect rect -- array array )
+    2rect-extent vmin >r vmax r> ;
+
+: rect-intersect ( rect1 rect2 -- newrect )
+    (rect-intersect) <extent-rect> ;
+
+: intersects? ( rect/point rect -- ? )
+    (rect-intersect) [v-] { 0 0 } = ;
+
+: (rect-union) ( rect rect -- array array )
+    2rect-extent vmax >r vmin r> ;
+
+: rect-union ( rect1 rect2 -- newrect )
+    (rect-union) <extent-rect> ;
+
+M: rect width  ( rect -- width  ) dim>> first  ;
+M: rect height ( rect -- height ) dim>> second ;
+
+M: rect set-width!  ( rect width  -- rect ) over dim>> set-first  ;
+M: rect set-height! ( rect height -- rect ) over dim>> set-second ;
+
+M: rect set-x! ( rect x -- rect ) over loc>> set-first  ;
+M: rect set-y! ( rect y -- rect ) over loc>> set-second ;
+
+! Accessing corners
+
+: top-left     ( rect -- point ) loc>> ;
+: top-right    ( rect -- point ) [ loc>> ] [ width  1 - ] bi v+x ;
+: bottom-left  ( rect -- point ) [ loc>> ] [ height 1 - ] bi v+y ;
+: bottom-right ( rect -- point ) [ loc>> ] [ dim>> ] bi v+ { 1 1 } v- ;
diff --git a/extra/http/server/authors.txt b/basis/math/intervals/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/http/server/authors.txt
rename to basis/math/intervals/authors.txt
diff --git a/core/math/intervals/intervals-docs.factor b/basis/math/intervals/intervals-docs.factor
similarity index 79%
rename from core/math/intervals/intervals-docs.factor
rename to basis/math/intervals/intervals-docs.factor
index 59fb0df18e..c5e5a6e7b8 100644
--- a/core/math/intervals/intervals-docs.factor
+++ b/basis/math/intervals/intervals-docs.factor
@@ -14,6 +14,10 @@ ARTICLE: "math-intervals-new" "Creating intervals"
 { $subsection [-inf,a) }
 { $subsection [a,inf] }
 { $subsection (a,inf] }
+"The set of all real numbers with infinities:"
+{ $subsection [-inf,inf] }
+"The empty set:"
+{ $subsection empty-interval }
 "Another constructor:"
 { $subsection points>interval } ;
 
@@ -24,16 +28,23 @@ ARTICLE: "math-intervals-arithmetic" "Interval arithmetic"
 { $subsection interval* }
 { $subsection interval/ }
 { $subsection interval/i }
-{ $subsection interval-shift }
+{ $subsection interval-mod }
+{ $subsection interval-rem }
 { $subsection interval-min }
 { $subsection interval-max }
+"Bitwise operations on intervals:"
+{ $subsection interval-shift }
+{ $subsection interval-bitand }
+{ $subsection interval-bitor }
+{ $subsection interval-bitxor }
 "Unary operations on intervals:"
 { $subsection interval-1+ }
 { $subsection interval-1- }
 { $subsection interval-neg }
 { $subsection interval-bitnot }
 { $subsection interval-recip }
-{ $subsection interval-2/ } ;
+{ $subsection interval-2/ }
+{ $subsection interval-abs } ;
 
 ARTICLE: "math-intervals-sets" "Set-theoretic operations on intervals"
 { $subsection interval-contains? }
@@ -53,12 +64,20 @@ ARTICLE: "math-intervals-compare" "Comparing intervals"
 { $subsection assume> }
 { $subsection assume>= } ;
 
+ARTICLE: "math-interval-properties" "Properties of interval arithmetic"
+"For some operations, interval arithmetic yields inaccurate results, either because the result of lifting some operations to intervals does not result in intervals (bitwise operations, for example) or for the sake of simplicity of implementation."
+$nl
+"However, one important property holds for all operations. Suppose " { $emphasis "I, J" } " are intervals and " { $emphasis "op" } " is an operation. If " { $emphasis "x" } " is an element of " { $emphasis "I" } " and " { $emphasis "y" } " is an element of " { $emphasis "J" } ", then " { $emphasis "x op y" } " is an element of " { $emphasis "I op J" } "."
+$nl
+"In other words, the resulting interval might be an overestimate, but it is never an underestimate." ;
+
 ARTICLE: "math-intervals" "Intervals"
 "Interval arithmetic is performed on ranges of real numbers, rather than exact values. It is used by the Factor compiler to convert arbitrary-precision arithmetic to machine arithmetic, by inferring bounds for integer calculations."
-$nl
+{ $subsection "math-interval-properties" }
 "The class of intervals:"
 { $subsection interval }
 { $subsection interval? }
+"Interval operations:"
 { $subsection "math-intervals-new" }
 { $subsection "math-intervals-arithmetic" }
 { $subsection "math-intervals-sets" }
@@ -69,7 +88,7 @@ ABOUT: "math-intervals"
 HELP: interval
 { $class-description "An interval represents a set of real numbers between two endpoints; the endpoints can either be included or excluded from the interval."
 $nl
-"The " { $link interval-from } " and " { $link interval-to } " slots store endpoints, represented as arrays of the shape " { $snippet "{ number included? }" } "."
+"The " { $snippet "from" } " and " { $snippet "to" } " slots store endpoints, represented as arrays of the shape " { $snippet "{ number included? }" } "."
 $nl
 "Intervals are created by calling " { $link [a,b] } ", " { $link (a,b) } ", " { $link [a,b) } ", " { $link (a,b] } " or " { $link [a,a] } "." } ;
 
@@ -144,6 +163,26 @@ HELP: interval-max
 { $values { "i1" interval } { "i2" interval } { "i3" interval } }
 { $description "Outputs the interval values obtained by lifting the " { $link max } " word to " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
 
+HELP: interval-mod
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Outputs an interval containing all possible values obtained by aplying " { $link mod } " to elements of " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
+
+HELP: interval-rem
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Outputs an interval containing all possible values obtained by aplying " { $link rem } " to elements of " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
+
+HELP: interval-bitand
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Outputs an interval containing all possible values obtained by aplying " { $link bitand } " to elements of " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
+
+HELP: interval-bitor
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Outputs an interval containing all possible values obtained by aplying " { $link bitor } " to elements of " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
+
+HELP: interval-bitxor
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Outputs an interval containing all possible values obtained by aplying " { $link bitxor } " to elements of " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
+
 HELP: interval-min
 { $values { "i1" interval } { "i2" interval } { "i3" interval } }
 { $description "Outputs the interval values obtained by lifting the " { $link min } " word to " { $snippet "i1" } " and " { $snippet "i2" } "." } ;
@@ -160,6 +199,10 @@ HELP: interval-neg
 { $values { "i1" interval } { "i2" interval } }
 { $description "Negates an interval." } ;
 
+HELP: interval-abs
+{ $values { "i1" interval } { "i2" interval } }
+{ $description "Absolute value of an interval." } ;
+
 HELP: interval-intersect
 { $values { "i1" interval } { "i2" interval } { "i3" "an " { $link interval  } " or " { $link f } } }
 { $description "Outputs the set-theoretic intersection of " { $snippet "i1" } " and " { $snippet "i2" } ". If " { $snippet "i1" } " and " { $snippet "i2" } " do not intersect, outputs " { $link f } "." } ;
@@ -181,12 +224,16 @@ HELP: interval-closure
 { $description "Outputs the smallest closed interval containing the endpoints of " { $snippet "i1" } "." } ;
 
 HELP: interval/
-{ $values { "i1" interval } { "i2" interval } { "i3" "an " { $link interval } " or " { $link f } } }
-{ $description "Divides " { $snippet "i1" } " by " { $snippet "i2" } ", using " { $link / } " to perform the division. Outputs " { $link f } " if " { $snippet "i2" } " contains points arbitrarily close to zero." } ;
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Divides " { $snippet "i1" } " by " { $snippet "i2" } ", using " { $link / } " to perform the division." } ;
 
 HELP: interval/i
-{ $values { "i1" interval } { "i2" interval } { "i3" "an " { $link interval } " or " { $link f } } }
-{ $description "Divides " { $snippet "i1" } " by " { $snippet "i2" } ", using " { $link /i } " to perform the division. Outputs " { $link f } " if " { $snippet "i2" } " contains points arbitrarily close to zero." } ;
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Divides " { $snippet "i1" } " by " { $snippet "i2" } ", using " { $link /i } " to perform the division." } ;
+
+HELP: interval/f
+{ $values { "i1" interval } { "i2" interval } { "i3" interval } }
+{ $description "Divides " { $snippet "i1" } " by " { $snippet "i2" } ", using " { $link /f } " to perform the division." } ;
 
 HELP: interval-recip
 { $values { "i1" interval } { "i2" interval } }
diff --git a/basis/math/intervals/intervals-tests.factor b/basis/math/intervals/intervals-tests.factor
new file mode 100755
index 0000000000..7d8d496737
--- /dev/null
+++ b/basis/math/intervals/intervals-tests.factor
@@ -0,0 +1,336 @@
+USING: math.intervals kernel sequences words math math.order
+arrays prettyprint tools.test random vocabs combinators
+accessors ;
+IN: math.intervals.tests
+
+[ empty-interval ] [ 2 2 (a,b) ] unit-test
+
+[ empty-interval ] [ 2 2 [a,b) ] unit-test
+
+[ empty-interval ] [ 2 2 (a,b] ] unit-test
+
+[ empty-interval ] [ 3 2 [a,b] ] unit-test
+
+[ T{ interval f { 1 t } { 2 t } } ] [ 1 2 [a,b] ] unit-test
+
+[ T{ interval f { 1 t } { 2 f } } ] [ 1 2 [a,b) ] unit-test
+
+[ T{ interval f { 1 f } { 2 f } } ] [ 1 2 (a,b) ] unit-test
+
+[ T{ interval f { 1 f } { 2 t } } ] [ 1 2 (a,b] ] unit-test
+
+[ T{ interval f { 1 t } { 1 t } } ] [ 1 [a,a] ] unit-test
+
+[ t ] [ { 3 t } { 3 f } endpoint< ] unit-test
+[ t ] [ { 2 f } { 3 f } endpoint< ] unit-test
+[ f ] [ { 3 f } { 3 t } endpoint< ] unit-test
+[ t ] [ { 4 f } { 3 t } endpoint> ] unit-test
+[ f ] [ { 3 f } { 3 t } endpoint> ] unit-test
+
+[ empty-interval ] [ 1 2 [a,b] empty-interval interval+ ] unit-test
+
+[ empty-interval ] [ empty-interval 1 2 [a,b] interval+ ] unit-test
+
+[ t ] [
+    1 2 [a,b] -3 3 [a,b] interval+ -2 5 [a,b] =
+] unit-test
+
+[ t ] [
+    1 2 [a,b] -3 3 (a,b) interval+ -2 5 (a,b) =
+] unit-test
+
+[ empty-interval ] [ 1 2 [a,b] empty-interval interval- ] unit-test
+
+[ empty-interval ] [ empty-interval 1 2 [a,b] interval- ] unit-test
+
+[ t ] [
+    1 2 [a,b] 0 1 [a,b] interval- 0 2 [a,b] =
+] unit-test
+
+[ empty-interval ] [ 1 2 [a,b] empty-interval interval* ] unit-test
+
+[ empty-interval ] [ empty-interval 1 2 [a,b] interval* ] unit-test
+
+[ t ] [
+    1 2 [a,b] 0 4 [a,b] interval* 0 8 [a,b] =
+] unit-test
+
+[ t ] [
+    1 2 [a,b] -4 4 [a,b] interval* -8 8 [a,b] =
+] unit-test
+
+[ t ] [
+    1 2 [a,b] -0.5 0.5 [a,b] interval* -1.0 1.0 [a,b] =
+] unit-test
+
+[ t ] [
+    1 2 [a,b] -0.5 0.5 (a,b] interval* -1.0 1.0 (a,b] =
+] unit-test
+
+[ t ] [
+    -1 1 [a,b] -1 1 (a,b] interval* -1 1 [a,b] =
+] unit-test
+
+[ t ] [ 1 2 [a,b] dup empty-interval interval-union = ] unit-test
+
+[ t ] [ empty-interval 1 2 [a,b] tuck interval-union = ] unit-test
+
+[ t ] [
+    0 1 (a,b) 0 1 [a,b] interval-union 0 1 [a,b] =
+] unit-test
+
+[ t ] [
+    0 1 (a,b) 1 2 [a,b] interval-union 0 2 (a,b] =
+] unit-test
+
+[ f ] [ 0 1 (a,b) f interval-union ] unit-test
+
+[ t ] [
+    0 1 (a,b) 0 1 [a,b] interval-intersect 0 1 (a,b) =
+] unit-test
+
+[ empty-interval ] [ 0 5 [a,b] -1 [a,a] interval-intersect ] unit-test
+
+[ empty-interval ] [ 0 5 (a,b] 0 [a,a] interval-intersect ] unit-test
+
+[ empty-interval ] [ empty-interval -1 [a,a] interval-intersect ] unit-test
+
+[ empty-interval ] [ 0 5 (a,b] empty-interval interval-intersect ] unit-test
+
+[ t ] [
+    empty-interval empty-interval interval-subset?
+] unit-test
+
+[ t ] [
+    empty-interval 0 1 [a,b] interval-subset?
+] unit-test
+
+[ t ] [
+    0 1 (a,b) 0 1 [a,b] interval-subset?
+] unit-test
+
+[ f ] [
+    0 0 1 (a,b) interval-contains?
+] unit-test
+
+[ t ] [
+    0.5 0 1 (a,b) interval-contains?
+] unit-test
+
+[ f ] [
+    1 0 1 (a,b) interval-contains?
+] unit-test
+
+[ empty-interval ] [ -1 1 (a,b) empty-interval interval/ ] unit-test
+
+[ t ] [ 0 0 331 [a,b) -1775 -953 (a,b) interval/ interval-contains? ] unit-test
+
+[ t ] [ -1 1 (a,b) -1 1 (a,b) interval/ [-inf,inf] = ] unit-test
+
+[ t ] [ -1 1 (a,b) 0 1 (a,b) interval/ [-inf,inf] = ] unit-test
+
+"math.ratios.private" vocab [
+    [ t ] [
+        -1 1 (a,b) 0.5 1 (a,b) interval/ -2.0 2.0 (a,b) =
+    ] unit-test
+] when
+
+[ f ] [ empty-interval interval-singleton? ] unit-test
+
+[ t ] [ 1 [a,a] interval-singleton? ] unit-test
+
+[ f ] [ 1 1 [a,b) interval-singleton? ] unit-test
+
+[ f ] [ 1 3 [a,b) interval-singleton? ] unit-test
+
+[ f ] [ 1 1 (a,b) interval-singleton? ] unit-test
+
+[ 2 ] [ 1 3 [a,b) interval-length ] unit-test
+
+[ 0 ] [ empty-interval interval-length ] unit-test
+
+[ t ] [ 0 5 [a,b] 5 [a,a] interval<= ] unit-test
+
+[ incomparable ] [ empty-interval 5 [a,a] interval< ] unit-test
+
+[ incomparable ] [ 5 [a,a] empty-interval interval< ] unit-test
+
+[ incomparable ] [ 0 5 [a,b] 5 [a,a] interval< ] unit-test
+
+[ t ] [ 0 5 [a,b) 5 [a,a] interval< ] unit-test
+
+[ f ] [ 0 5 [a,b] -1 [a,a] interval< ] unit-test
+
+[ incomparable ] [ 0 5 [a,b] 1 [a,a] interval< ] unit-test
+
+[ t ] [ -1 1 (a,b) -1 [a,a] interval> ] unit-test
+
+[ t ] [ -1 1 (a,b) -1 [a,a] interval>= ] unit-test
+
+[ f ] [ -1 1 (a,b) -1 [a,a] interval< ] unit-test
+
+[ f ] [ -1 1 (a,b) -1 [a,a] interval<= ] unit-test
+
+[ t ] [ -1 1 (a,b] 1 [a,a] interval<= ] unit-test
+
+[ t ] [ -1 1 (a,b] 1 2 [a,b] interval<= ] unit-test
+
+[ incomparable ] [ -1 1 (a,b] empty-interval interval>= ] unit-test
+
+[ incomparable ] [ empty-interval -1 1 (a,b] interval>= ] unit-test
+
+[ incomparable ] [ -1 1 (a,b] 1 2 [a,b] interval>= ] unit-test
+
+[ incomparable ] [ -1 1 (a,b] 1 2 [a,b] interval> ] unit-test
+
+[ t ] [ -1 1 (a,b] 1 2 (a,b] interval<= ] unit-test
+
+[ f ] [ 0 10 [a,b] 0 [a,a] interval< ] unit-test
+
+[ f ] [ 0 10 [a,b] 10 [a,a] interval> ] unit-test
+
+[ incomparable ] [ 0 [a,a] 0 10 [a,b] interval< ] unit-test
+
+[ incomparable ] [ 10 [a,a] 0 10 [a,b] interval> ] unit-test
+
+[ t ] [ 0 [a,a] 0 10 [a,b] interval<= ] unit-test
+
+[ incomparable ] [ 0 [a,a] 0 10 [a,b] interval>= ] unit-test
+
+[ t ] [ 0 10 [a,b] 0 [a,a] interval>= ] unit-test
+
+[ t ] [
+    418
+    418 423 [a,b)
+    79 893 (a,b]
+    interval-max
+    interval-contains?
+] unit-test
+
+[ t ] [ 1 100 [a,b] -1 1 [a,b] interval/i [-inf,inf] = ] unit-test
+
+! Interval random tester
+: random-element ( interval -- n )
+    dup to>> first over from>> first tuck - random +
+    2dup swap interval-contains? [
+        nip
+    ] [
+        drop random-element
+    ] if ;
+
+: random-interval ( -- interval )
+    2000 random 1000 - dup 2 1000 random + +
+    1 random zero? [ [ neg ] bi@ swap ] when
+    4 random {
+        { 0 [ [a,b] ] }
+        { 1 [ [a,b) ] }
+        { 2 [ (a,b) ] }
+        { 3 [ (a,b] ] }
+    } case ;
+
+: random-unary-op ( -- pair )
+    {
+        { bitnot interval-bitnot }
+        { abs interval-abs }
+        { 2/ interval-2/ }
+        { 1+ interval-1+ }
+        { 1- interval-1- }
+        { neg interval-neg }
+    }
+    "math.ratios.private" vocab [
+        { recip interval-recip } suffix
+    ] when
+    random ;
+
+: unary-test ( -- ? )
+    random-interval random-unary-op ! 2dup . .
+    0 pick interval-contains? over first \ recip eq? and [
+        2drop t
+    ] [
+        [ >r random-element ! dup .
+        r> first execute ] 2keep
+        second execute interval-contains?
+    ] if ;
+
+[ t ] [ 80000 [ drop unary-test ] all? ] unit-test
+
+: random-binary-op ( -- pair )
+    {
+        { + interval+ }
+        { - interval- }
+        { * interval* }
+        { /i interval/i }
+        { mod interval-mod }
+        { rem interval-rem }
+        { bitand interval-bitand }
+        { bitor interval-bitor }
+        { bitxor interval-bitxor }
+        { shift interval-shift }
+        { min interval-min }
+        { max interval-max }
+    }
+    "math.ratios.private" vocab [
+        { / interval/ } suffix
+    ] when
+    random ;
+
+: binary-test ( -- ? )
+    random-interval random-interval random-binary-op ! 3dup . . .
+    0 pick interval-contains? over first { / /i mod rem } member? and [
+        3drop t
+    ] [
+        [ >r [ random-element ] bi@ ! 2dup . .
+        r> first execute ] 3keep
+        second execute interval-contains?
+    ] if ;
+
+[ t ] [ 80000 [ drop binary-test ] all? ] unit-test
+
+: random-comparison ( -- pair )
+    {
+        { < interval< }
+        { <= interval<= }
+        { > interval> }
+        { >= interval>= }
+    } random ;
+
+: comparison-test ( -- ? )
+    random-interval random-interval random-comparison
+    [ >r [ random-element ] bi@ r> first execute ] 3keep
+    second execute dup incomparable eq? [ 2drop t ] [ = ] if ;
+
+[ t ] [ 40000 [ drop comparison-test ] all? ] unit-test
+
+[ t ] [ -10 10 [a,b] 0 100 [a,b] assume> 0 10 (a,b] = ] unit-test
+
+[ t ] [ -10 10 [a,b] 0 100 [a,b] assume>= 0 10 [a,b] = ] unit-test
+
+[ t ] [ -10 10 [a,b] 0 100 [a,b] assume< -10 10 [a,b] = ] unit-test
+
+[ t ] [ -10 10 [a,b] -100 0 [a,b] assume< -10 0 [a,b) = ] unit-test
+
+[ t ] [ -10 10 [a,b] -100 0 [a,b] assume<= -10 0 [a,b] = ] unit-test
+
+[ t ] [ -10 10 [a,b] 0 100 [a,b] assume<= -10 10 [a,b] = ] unit-test
+
+[ t ] [ -10 10 [a,b] interval-abs 0 10 [a,b] = ] unit-test
+
+! Test that commutative interval ops really are
+: random-interval-or-empty ( -- )
+    10 random 0 = [ empty-interval ] [ random-interval ] if ;
+
+: random-commutative-op ( -- op )
+    {
+        interval+ interval*
+        interval-bitor interval-bitand interval-bitxor
+        interval-max interval-min
+    } random ;
+
+[ t ] [
+    80000 [
+        drop
+        random-interval-or-empty random-interval-or-empty
+        random-commutative-op
+        [ execute ] [ swapd execute ] 3bi =
+    ] all?
+] unit-test
diff --git a/basis/math/intervals/intervals.factor b/basis/math/intervals/intervals.factor
new file mode 100755
index 0000000000..7c3bf27e9d
--- /dev/null
+++ b/basis/math/intervals/intervals.factor
@@ -0,0 +1,398 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+! Based on Slate's src/unfinished/interval.slate by Brian Rice.
+USING: accessors kernel sequences arrays math math.order
+combinators generic ;
+IN: math.intervals
+
+SYMBOL: empty-interval
+
+TUPLE: interval { from read-only } { to read-only } ;
+
+: <interval> ( from to -- int )
+    over first over first {
+        { [ 2dup > ] [ 2drop 2drop empty-interval ] }
+        { [ 2dup = ] [
+            2drop over second over second and
+            [ interval boa ] [ 2drop empty-interval ] if
+        ] }
+        [ 2drop interval boa ]
+    } cond ;
+
+: open-point ( n -- endpoint ) f 2array ;
+
+: closed-point ( n -- endpoint ) t 2array ;
+
+: [a,b] ( a b -- interval )
+    >r closed-point r> closed-point <interval> ; foldable
+
+: (a,b) ( a b -- interval )
+    >r open-point r> open-point <interval> ; foldable
+
+: [a,b) ( a b -- interval )
+    >r closed-point r> open-point <interval> ; foldable
+
+: (a,b] ( a b -- interval )
+    >r open-point r> closed-point <interval> ; foldable
+
+: [a,a] ( a -- interval )
+    closed-point dup <interval> ; foldable
+
+: [-inf,a] ( a -- interval ) -1./0. swap [a,b] ; inline
+
+: [-inf,a) ( a -- interval ) -1./0. swap [a,b) ; inline
+
+: [a,inf] ( a -- interval ) 1./0. [a,b] ; inline
+
+: (a,inf] ( a -- interval ) 1./0. (a,b] ; inline
+
+: [-inf,inf] ( -- interval )
+    T{ interval f { -1./0. t } { 1./0. t } } ; inline
+
+: compare-endpoints ( p1 p2 quot -- ? )
+    >r over first over first r> call [
+        2drop t
+    ] [
+        over first over first = [
+            swap second swap second not or
+        ] [
+            2drop f
+        ] if
+    ] if ; inline
+
+: endpoint< ( p1 p2 -- ? ) [ < ] compare-endpoints ;
+
+: endpoint<= ( p1 p2 -- ? ) [ endpoint< ] 2keep = or ;
+
+: endpoint> ( p1 p2 -- ? ) [ > ] compare-endpoints ;
+
+: endpoint>= ( p1 p2 -- ? ) [ endpoint> ] 2keep = or ;
+
+: endpoint-min ( p1 p2 -- p3 ) [ endpoint< ] most ;
+
+: endpoint-max ( p1 p2 -- p3 ) [ endpoint> ] most ;
+
+: interval>points ( int -- from to )
+    [ from>> ] [ to>> ] bi ;
+
+: points>interval ( seq -- interval )
+    dup [ first fp-nan? ] contains?
+    [ drop [-inf,inf] ] [
+        dup first
+        [ [ endpoint-min ] reduce ]
+        [ [ endpoint-max ] reduce ]
+        2bi <interval>
+    ] if ;
+
+: (interval-op) ( p1 p2 quot -- p3 )
+    [ [ first ] [ first ] [ ] tri* call ]
+    [ drop [ second ] both? ]
+    3bi 2array ; inline
+
+: interval-op ( i1 i2 quot -- i3 )
+    {
+        [ [ from>> ] [ from>> ] [ ] tri* (interval-op) ]
+        [ [ to>>   ] [ from>> ] [ ] tri* (interval-op) ]
+        [ [ to>>   ] [ to>>   ] [ ] tri* (interval-op) ]
+        [ [ from>> ] [ to>>   ] [ ] tri* (interval-op) ]
+    } 3cleave 4array points>interval ; inline
+
+: do-empty-interval ( i1 i2 quot -- i3 )
+    {
+        { [ pick empty-interval eq? ] [ drop drop ] }
+        { [ over empty-interval eq? ] [ drop nip ] }
+        [ call ]
+    } cond ; inline
+
+: interval+ ( i1 i2 -- i3 )
+    [ [ + ] interval-op ] do-empty-interval ;
+
+: interval- ( i1 i2 -- i3 )
+    [ [ - ] interval-op ] do-empty-interval ;
+
+: interval-intersect ( i1 i2 -- i3 )
+    {
+        { [ dup empty-interval eq? ] [ nip ] }
+        { [ over empty-interval eq? ] [ drop ] }
+        [
+            2dup and [
+                [ interval>points ] bi@ swapd
+                [ [ swap endpoint< ] most ]
+                [ [ swap endpoint> ] most ] 2bi*
+                <interval>
+            ] [
+                or
+            ] if
+        ]
+    } cond ;
+
+: intervals-intersect? ( i1 i2 -- ? )
+    interval-intersect empty-interval eq? not ;
+
+: interval-union ( i1 i2 -- i3 )
+    {
+        { [ dup empty-interval eq? ] [ drop ] }
+        { [ over empty-interval eq? ] [ nip ] }
+        [
+            2dup and [
+                [ interval>points 2array ] bi@ append points>interval
+            ] [
+                2drop f
+            ] if
+        ]
+    } cond ;
+
+: interval-subset? ( i1 i2 -- ? )
+    dupd interval-intersect = ;
+
+: interval-contains? ( x int -- ? )
+    dup empty-interval eq? [ 2drop f ] [
+        [ from>> first2 [ >= ] [ > ] if ]
+        [ to>>   first2 [ <= ] [ < ] if ]
+        2bi and
+    ] if ;
+
+: interval-zero? ( int -- ? )
+    0 swap interval-contains? ;
+
+: interval* ( i1 i2 -- i3 )
+    [ [ [ * ] interval-op ] do-empty-interval ]
+    [ [ interval-zero? ] either? ]
+    2bi [ 0 [a,a] interval-union ] when ;
+
+: interval-1+ ( i1 -- i2 ) 1 [a,a] interval+ ;
+
+: interval-1- ( i1 -- i2 ) -1 [a,a] interval+ ;
+
+: interval-neg ( i1 -- i2 ) -1 [a,a] interval* ;
+
+: interval-bitnot ( i1 -- i2 ) interval-neg interval-1- ;
+
+: interval-sq ( i1 -- i2 ) dup interval* ;
+
+: interval-singleton? ( int -- ? )
+    dup empty-interval eq? [
+        drop f
+    ] [
+        interval>points
+        2dup [ second ] bi@ and
+        [ [ first ] bi@ = ]
+        [ 2drop f ] if
+    ] if ;
+
+: interval-length ( int -- n )
+    {
+        { [ dup empty-interval eq? ] [ drop 0 ] }
+        { [ dup not ] [ drop 0 ] }
+        [ interval>points [ first ] bi@ swap - ]
+    } cond ;
+
+: interval-closure ( i1 -- i2 )
+    dup [ interval>points [ first ] bi@ [a,b] ] when ;
+
+: interval-integer-op ( i1 i2 quot -- i3 )
+    >r 2dup
+    [ interval>points [ first integer? ] both? ] both?
+    r> [ 2drop [-inf,inf] ] if ; inline
+
+: interval-shift ( i1 i2 -- i3 )
+    #! Inaccurate; could be tighter
+    [
+        [
+            [ interval-closure ] bi@
+            [ shift ] interval-op
+        ] interval-integer-op
+    ] do-empty-interval ;
+
+: interval-shift-safe ( i1 i2 -- i3 )
+    [
+        dup to>> first 100 > [
+            2drop [-inf,inf]
+        ] [
+            interval-shift
+        ] if
+    ] do-empty-interval ;
+
+: interval-max ( i1 i2 -- i3 )
+    #! Inaccurate; could be tighter
+    [ [ interval-closure ] bi@ [ max ] interval-op ] do-empty-interval ;
+
+: interval-min ( i1 i2 -- i3 )
+    #! Inaccurate; could be tighter
+    [ [ interval-closure ] bi@ [ min ] interval-op ] do-empty-interval ;
+
+: interval-interior ( i1 -- i2 )
+    dup empty-interval eq? [
+        interval>points [ first ] bi@ (a,b)
+    ] unless ;
+
+: interval-division-op ( i1 i2 quot -- i3 )
+    {
+        { [ 0 pick interval-closure interval-contains? ] [ 3drop [-inf,inf] ] }
+        { [ pick interval-zero? ] [ call 0 [a,a] interval-union ] }
+        [ call ]
+    } cond ; inline
+
+: interval/ ( i1 i2 -- i3 )
+    [ [ [ / ] interval-op ] interval-division-op ] do-empty-interval ;
+
+: interval/-safe ( i1 i2 -- i3 )
+    #! Just a hack to make the compiler work if bootstrap.math
+    #! is not loaded.
+    \ integer \ / method [ interval/ ] [ 2drop f ] if ;
+
+: interval/i ( i1 i2 -- i3 )
+    [
+        [
+            [
+                [ interval-closure ] bi@
+                [ /i ] interval-op
+            ] interval-integer-op
+        ] interval-division-op
+    ] do-empty-interval ;
+
+: interval/f ( i1 i2 -- i3 )
+    [ [ [ /f ] interval-op ] interval-division-op ] do-empty-interval ;
+
+: (interval-abs) ( i1 -- i2 )
+    interval>points [ first2 [ abs ] dip 2array ] bi@ 2array ;
+
+: interval-abs ( i1 -- i2 )
+    {
+        { [ dup empty-interval eq? ] [ ] }
+        { [ 0 over interval-contains? ] [ (interval-abs) { 0 t } suffix points>interval ] }
+        [ (interval-abs) points>interval ]
+    } cond ;
+
+: interval-mod ( i1 i2 -- i3 )
+    #! Inaccurate.
+    [
+        [
+            nip interval-abs to>> first [ neg ] keep (a,b)
+        ] interval-division-op
+    ] do-empty-interval ;
+
+: interval-rem ( i1 i2 -- i3 )
+    #! Inaccurate.
+    [
+        [
+            nip interval-abs to>> first 0 swap [a,b)
+        ] interval-division-op
+    ] do-empty-interval ;
+
+: interval-recip ( i1 -- i2 ) 1 [a,a] swap interval/ ;
+
+: interval-2/ ( i1 -- i2 ) -1 [a,a] interval-shift ;
+
+SYMBOL: incomparable
+
+: left-endpoint-< ( i1 i2 -- ? )
+    [ swap interval-subset? ]
+    [ nip interval-singleton? ]
+    [ [ from>> ] bi@ = ]
+    2tri and and ;
+
+: right-endpoint-< ( i1 i2 -- ? )
+    [ interval-subset? ]
+    [ drop interval-singleton? ]
+    [ [ to>> ] bi@ = ]
+    2tri and and ;
+
+: (interval<) ( i1 i2 -- i1 i2 ? )
+    over from>> over from>> endpoint< ;
+
+: interval< ( i1 i2 -- ? )
+    {
+        { [ 2dup [ empty-interval eq? ] either? ] [ incomparable ] }
+        { [ 2dup interval-intersect empty-interval eq? ] [ (interval<) ] }
+        { [ 2dup left-endpoint-< ] [ f ] }
+        { [ 2dup right-endpoint-< ] [ f ] }
+        [ incomparable ]
+    } cond 2nip ;
+
+: left-endpoint-<= ( i1 i2 -- ? )
+    >r from>> r> to>> = ;
+
+: right-endpoint-<= ( i1 i2 -- ? )
+    >r to>> r> from>> = ;
+
+: interval<= ( i1 i2 -- ? )
+    {
+        { [ 2dup [ empty-interval eq? ] either? ] [ incomparable ] }
+        { [ 2dup interval-intersect empty-interval eq? ] [ (interval<) ] }
+        { [ 2dup right-endpoint-<= ] [ t ] }
+        [ incomparable ]
+    } cond 2nip ;
+
+: interval> ( i1 i2 -- ? )
+    swap interval< ;
+
+: interval>= ( i1 i2 -- ? )
+    swap interval<= ;
+
+: interval-bitand-pos ( i1 i2 -- ? )
+    [ to>> first ] bi@ min 0 swap [a,b] ;
+
+: interval-bitand-neg ( i1 i2 -- ? )
+    dup from>> first 0 < [ drop ] [ nip ] if
+    0 swap to>> first [a,b] ;
+
+: interval-nonnegative? ( i -- ? )
+    from>> first 0 >= ;
+
+: interval-bitand ( i1 i2 -- i3 )
+    #! Inaccurate.
+    [
+        {
+            {
+                [ 2dup [ interval-nonnegative? ] both? ]
+                [ interval-bitand-pos ]
+            }
+            {
+                [ 2dup [ interval-nonnegative? ] either? ]
+                [ interval-bitand-neg ]
+            }
+            [ 2drop [-inf,inf] ]
+        } cond
+    ] do-empty-interval ;
+
+: interval-bitor ( i1 i2 -- i3 )
+    #! Inaccurate.
+    [
+        2dup [ interval-nonnegative? ] both?
+        [
+            [ interval>points [ first ] bi@ ] bi@
+            4array supremum 0 swap next-power-of-2 [a,b]
+        ] [ 2drop [-inf,inf] ] if
+    ] do-empty-interval ;
+
+: interval-bitxor ( i1 i2 -- i3 )
+    #! Inaccurate.
+    interval-bitor ;
+
+: assume< ( i1 i2 -- i3 )
+    dup empty-interval eq? [ drop ] [
+        to>> first [-inf,a) interval-intersect
+    ] if ;
+
+: assume<= ( i1 i2 -- i3 )
+    dup empty-interval eq? [ drop ] [
+        to>> first [-inf,a] interval-intersect
+    ] if ;
+
+: assume> ( i1 i2 -- i3 )
+    dup empty-interval eq? [ drop ] [
+        from>> first (a,inf] interval-intersect
+    ] if ;
+
+: assume>= ( i1 i2 -- i3 )
+    dup empty-interval eq? [ drop ] [
+        from>> first [a,inf] interval-intersect
+    ] if ;
+
+: integral-closure ( i1 -- i2 )
+    dup empty-interval eq? [
+        [ from>> first2 [ 1+ ] unless ]
+        [ to>> first2 [ 1- ] unless ]
+        bi [a,b]
+    ] unless ;
diff --git a/core/math/intervals/summary.txt b/basis/math/intervals/summary.txt
similarity index 100%
rename from core/math/intervals/summary.txt
rename to basis/math/intervals/summary.txt
diff --git a/extra/io/buffers/authors.txt b/basis/math/libm/authors.txt
similarity index 100%
rename from extra/io/buffers/authors.txt
rename to basis/math/libm/authors.txt
diff --git a/extra/math/libm/libm-docs.factor b/basis/math/libm/libm-docs.factor
similarity index 100%
rename from extra/math/libm/libm-docs.factor
rename to basis/math/libm/libm-docs.factor
diff --git a/extra/math/libm/libm.factor b/basis/math/libm/libm.factor
old mode 100644
new mode 100755
similarity index 97%
rename from extra/math/libm/libm.factor
rename to basis/math/libm/libm.factor
index f70c8d2a77..8bda6a6dd0
--- a/extra/math/libm/libm.factor
+++ b/basis/math/libm/libm.factor
@@ -15,18 +15,6 @@ IN: math.libm
     "double" "libm" "atan" { "double" } alien-invoke ;
     foldable
 
-: facosh ( x -- y )
-    "double" "libm" "acosh" { "double" } alien-invoke ;
-    foldable
-
-: fasinh ( x -- y )
-    "double" "libm" "asinh" { "double" } alien-invoke ;
-    foldable
-
-: fatanh ( x -- y )
-    "double" "libm" "atanh" { "double" } alien-invoke ;
-    foldable
-
 : fatan2 ( x y -- z )
     "double" "libm" "atan2" { "double" "double" } alien-invoke ;
     foldable
@@ -70,3 +58,16 @@ IN: math.libm
 : fsqrt ( x -- y )
     "double" "libm" "sqrt" { "double" } alien-invoke ;
     foldable
+    
+! Windows doesn't have these...
+: facosh ( x -- y )
+    "double" "libm" "acosh" { "double" } alien-invoke ;
+    foldable
+
+: fasinh ( x -- y )
+    "double" "libm" "asinh" { "double" } alien-invoke ;
+    foldable
+
+: fatanh ( x -- y )
+    "double" "libm" "atanh" { "double" } alien-invoke ;
+    foldable
diff --git a/extra/math/libm/summary.txt b/basis/math/libm/summary.txt
similarity index 100%
rename from extra/math/libm/summary.txt
rename to basis/math/libm/summary.txt
diff --git a/extra/cocoa/tags.txt b/basis/math/libm/tags.txt
similarity index 100%
rename from extra/cocoa/tags.txt
rename to basis/math/libm/tags.txt
diff --git a/core/optimizer/math/partial/partial-tests.factor b/basis/math/partial-dispatch/partial-dispatch-tests.factor
similarity index 83%
rename from core/optimizer/math/partial/partial-tests.factor
rename to basis/math/partial-dispatch/partial-dispatch-tests.factor
index 671933b682..64605b1818 100644
--- a/core/optimizer/math/partial/partial-tests.factor
+++ b/basis/math/partial-dispatch/partial-dispatch-tests.factor
@@ -1,6 +1,5 @@
-IN: optimizer.math.partial.tests
-USING: optimizer.math.partial tools.test math kernel
-sequences ;
+IN: math.partial-dispatch.tests
+USING: math.partial-dispatch tools.test math kernel sequences ;
 
 [ t ] [ \ + integer fixnum math-both-known? ] unit-test
 [ t ] [ \ + bignum fixnum math-both-known? ] unit-test
diff --git a/basis/math/partial-dispatch/partial-dispatch.factor b/basis/math/partial-dispatch/partial-dispatch.factor
new file mode 100644
index 0000000000..baa5558f7f
--- /dev/null
+++ b/basis/math/partial-dispatch/partial-dispatch.factor
@@ -0,0 +1,161 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel kernel.private math math.private words
+sequences parser namespaces assocs quotations arrays locals
+generic generic.math hashtables effects compiler.units ;
+IN: math.partial-dispatch
+
+! Partial dispatch.
+
+! This code will be overhauled and generalized when
+! multi-methods go into the core.
+PREDICATE: math-partial < word
+    "derived-from" word-prop >boolean ;
+
+:: fixnum-integer-op ( a b fix-word big-word -- c )
+    b tag 0 eq? [
+        a b fix-word execute
+    ] [
+       a fixnum>bignum b big-word execute
+    ] if ; inline
+
+:: integer-fixnum-op ( a b fix-word big-word -- c )
+    a tag 0 eq? [
+        a b fix-word execute
+    ] [
+        a b fixnum>bignum big-word execute
+    ] if ; inline
+
+:: integer-integer-op ( a b fix-word big-word -- c )
+    b tag 0 eq? [
+        a b fix-word big-word integer-fixnum-op
+    ] [
+        a dup tag 0 eq? [ fixnum>bignum ] when
+        b big-word execute
+    ] if ; inline
+
+: integer-op-combinator ( triple -- word )
+    [
+        [ second name>> % "-" % ]
+        [ third name>> % "-op" % ]
+        bi
+    ] "" make "math.partial-dispatch" lookup ;
+
+: integer-op-word ( triple -- word )
+    [ name>> ] map "-" join "math.partial-dispatch" create ;
+
+: integer-op-quot ( triple fix-word big-word -- quot )
+    rot integer-op-combinator 1quotation 2curry ;
+
+: define-integer-op-word ( triple fix-word big-word -- )
+    [
+        [ 2drop integer-op-word ] [ integer-op-quot ] 3bi
+        (( x y -- z )) define-declared
+    ] [
+        2drop
+        [ integer-op-word ] keep
+        "derived-from" set-word-prop
+    ] 3bi ;
+
+: define-integer-op-words ( triples fix-word big-word -- )
+    [ define-integer-op-word ] 2curry each ;
+
+: integer-op-triples ( word -- triples )
+    {
+        { fixnum integer }
+        { integer fixnum }
+        { integer integer }
+    } swap [ prefix ] curry map ;
+
+: define-integer-ops ( word fix-word big-word -- )
+    >r >r integer-op-triples r> r>
+    [ define-integer-op-words ]
+    [ 2drop [ dup integer-op-word ] { } map>assoc % ]
+    3bi ;
+
+: define-math-ops ( op -- )
+    { fixnum bignum float }
+    [ [ dup 3array ] [ swap method ] 2bi ] with { } map>assoc
+    [ nip ] assoc-filter
+    [ def>> peek ] assoc-map % ;
+
+SYMBOL: math-ops
+
+SYMBOL: fast-math-ops
+
+: math-op ( word left right -- word' ? )
+    3array math-ops get at* ;
+
+: math-method* ( word left right -- quot )
+    3dup math-op
+    [ >r 3drop r> 1quotation ] [ drop math-method ] if ;
+
+: math-both-known? ( word left right -- ? )
+    3dup math-op
+    [ 2drop 2drop t ]
+    [ drop math-class-max swap specific-method >boolean ] if ;
+
+: (derived-ops) ( word assoc -- words )
+    swap [ rot first eq? nip ] curry assoc-filter values ;
+
+: derived-ops ( word -- words )
+    [ 1array ]
+    [ math-ops get (derived-ops) ]
+    bi append ;
+
+: fast-derived-ops ( word -- words )
+    fast-math-ops get (derived-ops) ;
+
+: all-derived-ops ( word -- words )
+    [ derived-ops ] [ fast-derived-ops ] bi append ;
+
+: each-derived-op ( word quot -- )
+    >r derived-ops r> each ; inline
+
+: each-fast-derived-op ( word quot -- )
+    >r fast-derived-ops r> each ; inline
+
+[
+    [
+        \ +       define-math-ops
+        \ -       define-math-ops
+        \ *       define-math-ops
+        \ shift   define-math-ops
+        \ mod     define-math-ops
+        \ /i      define-math-ops
+
+        \ bitand  define-math-ops
+        \ bitor   define-math-ops
+        \ bitxor  define-math-ops
+
+        \ <       define-math-ops
+        \ <=      define-math-ops
+        \ >       define-math-ops
+        \ >=      define-math-ops
+        \ number= define-math-ops
+
+        \ + \ fixnum+ \ bignum+ define-integer-ops
+        \ - \ fixnum- \ bignum- define-integer-ops
+        \ * \ fixnum* \ bignum* define-integer-ops
+        \ shift \ fixnum-shift \ bignum-shift define-integer-ops
+        \ mod \ fixnum-mod \ bignum-mod define-integer-ops
+        \ /i \ fixnum/i \ bignum/i define-integer-ops
+
+        \ bitand \ fixnum-bitand \ bignum-bitand define-integer-ops
+        \ bitor \ fixnum-bitor \ bignum-bitor define-integer-ops
+        \ bitxor \ fixnum-bitxor \ bignum-bitxor define-integer-ops
+
+        \ < \ fixnum< \ bignum< define-integer-ops
+        \ <= \ fixnum<= \ bignum<= define-integer-ops
+        \ > \ fixnum> \ bignum> define-integer-ops
+        \ >= \ fixnum>= \ bignum>= define-integer-ops
+        \ number= \ eq? \ bignum= define-integer-ops
+    ] { } make >hashtable math-ops set-global
+
+    H{
+        { { + fixnum fixnum } fixnum+fast }
+        { { - fixnum fixnum } fixnum-fast }
+        { { * fixnum fixnum } fixnum*fast }
+        { { shift fixnum fixnum } fixnum-shift-fast }
+    } fast-math-ops set-global
+] with-compilation-unit
diff --git a/basis/math/points/points.factor b/basis/math/points/points.factor
new file mode 100644
index 0000000000..c8654869e2
--- /dev/null
+++ b/basis/math/points/points.factor
@@ -0,0 +1,27 @@
+USING: kernel arrays math.vectors sequences math ;
+
+IN: math.points
+
+<PRIVATE
+
+: X ( x -- point )      0   0 3array ;
+: Y ( y -- point ) 0 swap   0 3array ;
+: Z ( z -- point ) 0    0 rot 3array ;
+
+PRIVATE>
+
+: v+x ( seq x -- seq ) X v+ ;
+: v-x ( seq x -- seq ) X v- ;
+
+: v+y ( seq y -- seq ) Y v+ ;
+: v-y ( seq y -- seq ) Y v- ;
+
+: v+z ( seq z -- seq ) Z v+ ;
+: v-z ( seq z -- seq ) Z v- ;
+
+: rise ( pt2 pt1 -- n ) [ second ] bi@ - ;
+: run ( pt2 pt1 -- n ) [ first ] bi@ - ;
+: slope ( pt pt -- slope ) [ rise ] [ run ] 2bi / ;
+: distance ( point point -- float ) v- norm ;
+: midpoint ( point point -- point ) v+ 2 v/n ;
+: linear-solution ( pt pt -- x ) [ drop first2 ] [ slope ] 2bi / - ;
\ No newline at end of file
diff --git a/extra/symbols/authors.txt b/basis/math/ranges/authors.txt
similarity index 100%
rename from extra/symbols/authors.txt
rename to basis/math/ranges/authors.txt
diff --git a/basis/math/ranges/ranges-docs.factor b/basis/math/ranges/ranges-docs.factor
new file mode 100644
index 0000000000..f3c65e51a4
--- /dev/null
+++ b/basis/math/ranges/ranges-docs.factor
@@ -0,0 +1,27 @@
+USING: help.syntax help.markup arrays sequences ;
+
+IN: math.ranges
+
+ARTICLE: "ranges" "Ranges"
+"A " { $emphasis "range" } " is a virtual sequence with real number elements "
+"ranging from " { $emphasis "a" } " to " { $emphasis "b" } " by " { $emphasis "step" } "."
+$nl
+"The class of ranges:"
+{ $subsection range }
+"Creating ranges with integer end-points. The standard mathematical convention is used, where " { $snippet "(" } " or " { $snippet ")" } " denotes that the end-point itself " { $emphasis "is not" } " part of the range; " { $snippet "[" } " or " { $snippet "]" } " denotes that the end-point " { $emphasis "is" } " part of the range:"
+{ $subsection [a,b] }
+{ $subsection (a,b] }
+{ $subsection [a,b) }
+{ $subsection (a,b) }
+{ $subsection [0,b] }
+{ $subsection [1,b] }
+{ $subsection [0,b) }
+"Creating general ranges:"
+{ $subsection <range> }
+"Ranges are most frequently used with sequence combinators as a means of iterating over integers. For example,"
+{ $code
+    "3 10 [a,b] [ sqrt ] map"
+}
+"A range can be converted into a concrete sequence using a word such as " { $link >array } ". In most cases this is unnecessary since ranges implement the sequence protocol already. It is necessary if a mutable sequence is needed, for use with words such as " { $link set-nth } " or " { $link change-each } "." ;
+  
+ABOUT: "ranges"
\ No newline at end of file
diff --git a/extra/math/ranges/ranges-tests.factor b/basis/math/ranges/ranges-tests.factor
similarity index 100%
rename from extra/math/ranges/ranges-tests.factor
rename to basis/math/ranges/ranges-tests.factor
diff --git a/extra/math/ranges/ranges.factor b/basis/math/ranges/ranges.factor
similarity index 66%
rename from extra/math/ranges/ranges.factor
rename to basis/math/ranges/ranges.factor
index eb26232969..5acdc43ca3 100755
--- a/extra/math/ranges/ranges.factor
+++ b/basis/math/ranges/ranges.factor
@@ -2,12 +2,15 @@ USING: kernel layouts math math.order namespaces sequences
 sequences.private accessors ;
 IN: math.ranges
 
-TUPLE: range from length step ;
+TUPLE: range
+{ from read-only }
+{ length read-only }
+{ step read-only } ;
 
 : <range> ( a b step -- range )
     >r over - r>
     [ / 1+ 0 max >integer ] keep
-    range boa ;
+    range boa ; inline
 
 M: range length ( seq -- n )
     length>> ;
@@ -23,19 +26,19 @@ INSTANCE: range immutable-sequence
 
 : ,b) dup neg rot + swap ; inline
 
-: [a,b] ( a b -- range ) twiddle <range> ;
+: [a,b] ( a b -- range ) twiddle <range> ; inline
 
-: (a,b] ( a b -- range ) twiddle (a, <range> ;
+: (a,b] ( a b -- range ) twiddle (a, <range> ; inline
 
-: [a,b) ( a b -- range ) twiddle ,b) <range> ;
+: [a,b) ( a b -- range ) twiddle ,b) <range> ; inline
 
-: (a,b) ( a b -- range ) twiddle (a, ,b) <range> ;
+: (a,b) ( a b -- range ) twiddle (a, ,b) <range> ; inline
 
-: [0,b] ( b -- range ) 0 swap [a,b] ;
+: [0,b] ( b -- range ) 0 swap [a,b] ; inline
 
-: [1,b] ( b -- range ) 1 swap [a,b] ;
+: [1,b] ( b -- range ) 1 swap [a,b] ; inline
 
-: [0,b) ( b -- range ) 0 swap [a,b) ;
+: [0,b) ( b -- range ) 0 swap [a,b) ; inline
 
 : range-increasing? ( range -- ? )
     step>> 0 > ;
diff --git a/extra/math/ranges/summary.txt b/basis/math/ranges/summary.txt
similarity index 100%
rename from extra/math/ranges/summary.txt
rename to basis/math/ranges/summary.txt
diff --git a/extra/io/monitors/authors.txt b/basis/math/ratios/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/monitors/authors.txt
rename to basis/math/ratios/authors.txt
diff --git a/extra/math/ratios/ratios-docs.factor b/basis/math/ratios/ratios-docs.factor
similarity index 97%
rename from extra/math/ratios/ratios-docs.factor
rename to basis/math/ratios/ratios-docs.factor
index b780a7c322..903017e371 100755
--- a/extra/math/ratios/ratios-docs.factor
+++ b/basis/math/ratios/ratios-docs.factor
@@ -27,11 +27,11 @@ HELP: ratio
 HELP: rational
 { $class-description "The class of rational numbers, a disjoint union of integers and ratios." } ;
 
-HELP: numerator ( a/b -- a )
+HELP: numerator
 { $values { "a/b" rational } { "a" integer } }
 { $description "Outputs the numerator of a rational number. Acts as the identity on integers." } ;
 
-HELP: denominator ( a/b -- b )
+HELP: denominator
 { $values { "a/b" rational } { "b" "a positive integer" } }
 { $description "Outputs the denominator of a rational number. Always outputs 1 with integers." } ;
 
diff --git a/extra/math/ratios/ratios-tests.factor b/basis/math/ratios/ratios-tests.factor
similarity index 97%
rename from extra/math/ratios/ratios-tests.factor
rename to basis/math/ratios/ratios-tests.factor
index 28801fa2e9..c01e7377b2 100755
--- a/extra/math/ratios/ratios-tests.factor
+++ b/basis/math/ratios/ratios-tests.factor
@@ -81,8 +81,8 @@ unit-test
 [ -1/2 ] [ 1/2 1- ] unit-test
 [ 3/2 ] [ 1/2 1+ ] unit-test
 
-[ 1 ] [ 0.5 1/2 + ] unit-test
-[ 1 ] [ 1/2 0.5 + ] unit-test
+[ 1.0 ] [ 0.5 1/2 + ] unit-test
+[ 1.0 ] [ 1/2 0.5 + ] unit-test
 
 [ 1/268435456 ] [ -1 -268435456 >fixnum / ] unit-test
 [ 268435456 ] [ -268435456 >fixnum -1 / ] unit-test
diff --git a/extra/math/ratios/ratios.factor b/basis/math/ratios/ratios.factor
similarity index 74%
rename from extra/math/ratios/ratios.factor
rename to basis/math/ratios/ratios.factor
index 43cbc3fc10..5dde4fbb99 100755
--- a/extra/math/ratios/ratios.factor
+++ b/basis/math/ratios/ratios.factor
@@ -1,7 +1,7 @@
-! Copyright (C) 2004, 2006 Slava Pestov.
+! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel kernel.private math math.functions math.private ;
 IN: math.ratios
-USING: kernel kernel.private math math.functions math.private ;
 
 : >fraction ( a/b -- a b )
     dup numerator swap denominator ; inline
@@ -30,6 +30,14 @@ M: integer /
         2dup gcd nip tuck /i >r /i r> fraction>
     ] if ;
 
+M: ratio hashcode*
+    nip >fraction [ hashcode ] bi@ bitxor ;
+
+M: ratio equal?
+    over ratio? [
+        2>fraction = [ = ] [ 2drop f ] if
+    ] [ 2drop f ] if ;
+
 M: ratio number=
     2>fraction number= [ number= ] [ 2drop f ] if ;
 
@@ -37,6 +45,9 @@ M: ratio >fixnum >fraction /i >fixnum ;
 M: ratio >bignum >fraction /i >bignum ;
 M: ratio >float >fraction /f ;
 
+M: ratio numerator numerator>> ;
+M: ratio denominator denominator>> ;
+
 M: ratio < scale < ;
 M: ratio <= scale <= ;
 M: ratio > scale > ;
@@ -48,5 +59,5 @@ M: ratio * 2>fraction * >r * r> / ;
 M: ratio / scale / ;
 M: ratio /i scale /i ;
 M: ratio /f scale /f ;
-M: ratio mod 2dup >r >r /i r> r> rot * - ;
+M: ratio mod [ /i ] 2keep rot * - ;
 M: ratio /mod [ /i ] 2keep mod ;
diff --git a/extra/math/ratios/summary.txt b/basis/math/ratios/summary.txt
similarity index 100%
rename from extra/math/ratios/summary.txt
rename to basis/math/ratios/summary.txt
diff --git a/extra/io/pools/authors.txt b/basis/math/vectors/authors.txt
similarity index 100%
rename from extra/io/pools/authors.txt
rename to basis/math/vectors/authors.txt
diff --git a/extra/math/vectors/summary.txt b/basis/math/vectors/summary.txt
similarity index 100%
rename from extra/math/vectors/summary.txt
rename to basis/math/vectors/summary.txt
diff --git a/extra/math/vectors/vectors-docs.factor b/basis/math/vectors/vectors-docs.factor
similarity index 100%
rename from extra/math/vectors/vectors-docs.factor
rename to basis/math/vectors/vectors-docs.factor
diff --git a/extra/math/vectors/vectors-tests.factor b/basis/math/vectors/vectors-tests.factor
similarity index 100%
rename from extra/math/vectors/vectors-tests.factor
rename to basis/math/vectors/vectors-tests.factor
diff --git a/basis/math/vectors/vectors.factor b/basis/math/vectors/vectors.factor
new file mode 100755
index 0000000000..b6ac459123
--- /dev/null
+++ b/basis/math/vectors/vectors.factor
@@ -0,0 +1,46 @@
+! Copyright (C) 2005, 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays kernel sequences math math.functions hints
+math.order ;
+IN: math.vectors
+
+: vneg ( u -- v ) [ neg ] map ;
+
+: v*n ( u n -- v ) [ * ] curry map ;
+: n*v ( n u -- v ) [ * ] with map ;
+: v/n ( u n -- v ) [ / ] curry map ;
+: n/v ( n u -- v ) [ / ] with map ;
+
+: v+   ( u v -- w ) [ + ] 2map ;
+: v-   ( u v -- w ) [ - ] 2map ;
+: [v-] ( u v -- w ) [ [-] ] 2map ;
+: v*   ( u v -- w ) [ * ] 2map ;
+: v/   ( u v -- w ) [ / ] 2map ;
+: vmax ( u v -- w ) [ max ] 2map ;
+: vmin ( u v -- w ) [ min ] 2map ;
+
+: v. ( u v -- x ) 0 [ * + ] 2reduce ;
+: norm-sq ( v -- x ) 0 [ absq + ] reduce ;
+: norm ( v -- x ) norm-sq sqrt ;
+: normalize ( u -- v ) dup norm v/n ;
+
+: set-axis ( u v axis -- w )
+    [ >r zero? 2over ? r> swap nth ] map-index 2nip ;
+
+HINTS: vneg { array } ;
+HINTS: norm-sq { array } ;
+HINTS: norm { array } ;
+HINTS: normalize { array } ;
+
+HINTS: n*v { object array } ;
+HINTS: v*n { array object } ;
+HINTS: n/v { array } ;
+HINTS: v/n { array object } ;
+
+HINTS: v+ { array array } ;
+HINTS: v- { array array } ;
+HINTS: v* { array array } ;
+HINTS: v/ { array array } ;
+HINTS: vmax { array array } ;
+HINTS: vmin { array array } ;
+HINTS: v. { array array } ;
diff --git a/extra/memoize/authors.txt b/basis/memoize/authors.txt
similarity index 100%
rename from extra/memoize/authors.txt
rename to basis/memoize/authors.txt
diff --git a/extra/memoize/memoize-docs.factor b/basis/memoize/memoize-docs.factor
similarity index 100%
rename from extra/memoize/memoize-docs.factor
rename to basis/memoize/memoize-docs.factor
diff --git a/extra/memoize/memoize-tests.factor b/basis/memoize/memoize-tests.factor
similarity index 94%
rename from extra/memoize/memoize-tests.factor
rename to basis/memoize/memoize-tests.factor
index c2592b38ca..1f819d281d 100644
--- a/extra/memoize/memoize-tests.factor
+++ b/basis/memoize/memoize-tests.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007 Slava Pestov, Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: math kernel memoize tools.test parser
-prettyprint io.streams.string sequences ;
+prettyprint io.streams.string sequences eval ;
 IN: memoize.tests
 
 MEMO: fib ( m -- n )
diff --git a/extra/memoize/memoize.factor b/basis/memoize/memoize.factor
similarity index 79%
rename from extra/memoize/memoize.factor
rename to basis/memoize/memoize.factor
index 1c0491a7ab..4b1a4a67d5 100755
--- a/extra/memoize/memoize.factor
+++ b/basis/memoize/memoize.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2007 Slava Pestov, Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel hashtables sequences arrays words namespaces
-parser math assocs effects definitions quotations ;
+parser math assocs effects definitions quotations summary
+accessors ;
 IN: memoize
 
 : packer ( n -- quot )
@@ -11,10 +12,10 @@ IN: memoize
     { [ drop ] [ ] [ first2 ] [ first3 ] [ first4 ] } nth ;
 
 : #in ( word -- n )
-    stack-effect effect-in length ;
+    stack-effect in>> length ;
 
 : #out ( word -- n )
-    stack-effect effect-out length ;
+    stack-effect out>> length ;
 
 : pack/unpack ( quot word -- newquot )
     [ dup #in unpacker % swap % #out packer % ] [ ] make ;
@@ -28,10 +29,13 @@ IN: memoize
         #out unpacker %
     ] [ ] make ;
 
+ERROR: too-many-arguments ;
+
+M: too-many-arguments summary
+    drop "There must be no more than 4 input and 4 output arguments" ;
+
 : check-memoized ( word -- )
-    dup #in 4 > swap #out 4 > or [
-        "There must be no more than 4 input and 4 output arguments" throw
-    ] when ;
+    dup #in 4 > swap #out 4 > or [ too-many-arguments ] when ;
 
 : define-memoized ( word quot -- )
     over check-memoized
@@ -48,8 +52,8 @@ M: memoized definer drop \ MEMO: \ ; ;
 M: memoized definition "memo-quot" word-prop ;
 
 M: memoized reset-word
-    [ { "memoize" "memo-quot" } reset-props ]
     [ call-next-method ]
+    [ { "memoize" "memo-quot" } reset-props ]
     bi ;
 
 : memoize-quot ( quot effect -- memo-quot )
@@ -59,5 +63,5 @@ M: memoized reset-word
 : reset-memoized ( word -- )
     "memoize" word-prop clear-assoc ;
 
-: invalidate-memoized ! ( inputs... word )
+: invalidate-memoized ( inputs... word -- )
     [ #in packer call ] [ "memoize" word-prop delete-at ] bi ;
diff --git a/extra/memoize/summary.txt b/basis/memoize/summary.txt
similarity index 100%
rename from extra/memoize/summary.txt
rename to basis/memoize/summary.txt
diff --git a/extra/memoize/tags.txt b/basis/memoize/tags.txt
similarity index 100%
rename from extra/memoize/tags.txt
rename to basis/memoize/tags.txt
diff --git a/extra/io/ports/authors.txt b/basis/mime-types/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/io/ports/authors.txt
rename to basis/mime-types/authors.txt
diff --git a/extra/mime-types/mime-types-tests.factor b/basis/mime-types/mime-types-tests.factor
similarity index 100%
rename from extra/mime-types/mime-types-tests.factor
rename to basis/mime-types/mime-types-tests.factor
diff --git a/extra/mime-types/mime-types.factor b/basis/mime-types/mime-types.factor
similarity index 92%
rename from extra/mime-types/mime-types.factor
rename to basis/mime-types/mime-types.factor
index a228a8904c..9489da8149 100755
--- a/extra/mime-types/mime-types.factor
+++ b/basis/mime-types/mime-types.factor
@@ -5,7 +5,7 @@ kernel namespaces fry memoize ;
 IN: mime-types
 
 MEMO: mime-db ( -- seq )
-    "resource:extra/mime-types/mime.types" ascii file-lines
+    "resource:basis/mime-types/mime.types" ascii file-lines
     [ "#" head? not ] filter [ " \t" split harvest ] map harvest ;
 
 : nonstandard-mime-types ( -- assoc )
diff --git a/extra/mime-types/mime.types b/basis/mime-types/mime.types
similarity index 100%
rename from extra/mime-types/mime.types
rename to basis/mime-types/mime.types
diff --git a/extra/io/server/authors.txt b/basis/mirrors/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/server/authors.txt
rename to basis/mirrors/authors.txt
diff --git a/core/mirrors/mirrors-docs.factor b/basis/mirrors/mirrors-docs.factor
similarity index 85%
rename from core/mirrors/mirrors-docs.factor
rename to basis/mirrors/mirrors-docs.factor
index 60de841568..d6a8d51fbe 100755
--- a/core/mirrors/mirrors-docs.factor
+++ b/basis/mirrors/mirrors-docs.factor
@@ -13,10 +13,6 @@ $nl
 
 ABOUT: "mirrors"
 
-HELP: object-slots
-{ $values { "obj" object } { "seq" "a sequence of " { $link slot-spec } " instances" } }
-{ $description "Outputs a sequence of slot specifiers for the object." } ;
-
 HELP: mirror
 { $class-description "An associative structure which wraps an object and presents itself as a mapping from slot names to the object's slot values. Mirrors are used to build reflective developer tools."
 $nl
@@ -24,7 +20,7 @@ $nl
 $nl
 "Mirrors are created by calling " { $link <mirror> } " or " { $link make-mirror } "." } ;
 
-HELP: <mirror>
+HELP: <mirror> ( object -- mirror )
 { $values { "object" object } { "mirror" mirror } } 
 { $description "Creates a " { $link mirror } " reflecting an object." }
 { $examples
@@ -34,7 +30,7 @@ HELP: <mirror>
         "TUPLE: circle center radius ;"
         "C: <circle> circle"
         "{ 100 50 } 15 <circle> <mirror> >alist ."
-        "{ { \"delegate\" f } { \"center\" { 100 50 } } { \"radius\" 15 } }"
+        "{ { \"center\" { 100 50 } } { \"radius\" 15 } }"
     }
 } ;
 
diff --git a/basis/mirrors/mirrors-tests.factor b/basis/mirrors/mirrors-tests.factor
new file mode 100755
index 0000000000..aad033600a
--- /dev/null
+++ b/basis/mirrors/mirrors-tests.factor
@@ -0,0 +1,61 @@
+USING: mirrors tools.test assocs kernel arrays accessors words
+namespaces math slots parser eval ;
+IN: mirrors.tests
+
+TUPLE: foo bar baz ;
+
+C: <foo> foo
+
+[ 2 ] [ 1 2 <foo> <mirror> assoc-size ] unit-test
+
+[ { "bar" "baz" } ] [ 1 2 <foo> <mirror> keys ] unit-test
+
+[ 1 t ] [ "bar" 1 2 <foo> <mirror> at* ] unit-test
+
+[ f f ] [ "hi" 1 2 <foo> <mirror> at* ] unit-test
+
+[ 3 ] [
+    3 "baz" 1 2 <foo> [ <mirror> set-at ] keep baz>>
+] unit-test
+
+[ 3 "hi" 1 2 <foo> <mirror> set-at ] must-fail
+
+[ 3 "numerator" 1/2 <mirror> set-at ] must-fail
+
+[ "foo" ] [
+    gensym [
+        <mirror> [
+            "foo" "name" set
+        ] bind
+    ] [ name>> ] bi
+] unit-test
+
+[ gensym <mirror> [ "compiled" off ] bind ] must-fail
+
+TUPLE: declared-mirror-test
+{ a integer initial: 0 } ;
+
+[ 5 ] [
+    3 declared-mirror-test boa <mirror> [
+        5 "a" set
+        "a" get
+    ] bind
+] unit-test
+
+[ 3 declared-mirror-test boa <mirror> [ t "a" set ] bind ] must-fail
+
+TUPLE: color
+{ red integer }
+{ green integer }
+{ blue integer } ;
+
+[ T{ color f 0 0 0 } ] [
+    1 2 3 color boa [ <mirror> clear-assoc ] keep
+] unit-test
+
+! Test reshaping with a mirror
+1 2 3 color boa <mirror> "mirror" set
+
+[ ] [ "IN: mirrors.tests USE: math TUPLE: color { green integer } { red integer } { blue integer } ;" eval ] unit-test
+
+[ 1 ] [ "red" "mirror" get at ] unit-test
diff --git a/basis/mirrors/mirrors.factor b/basis/mirrors/mirrors.factor
new file mode 100755
index 0000000000..ce99314ce6
--- /dev/null
+++ b/basis/mirrors/mirrors.factor
@@ -0,0 +1,57 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs hashtables kernel sequences generic words
+arrays classes slots slots.private classes.tuple
+classes.tuple.private math vectors quotations accessors
+combinators ;
+IN: mirrors
+
+TUPLE: mirror { object read-only } ;
+
+C: <mirror> mirror
+
+: object-slots ( mirror -- slots ) object>> class all-slots ; inline
+
+M: mirror at*
+    [ nip object>> ] [ object-slots slot-named ] 2bi
+    dup [ offset>> slot t ] [ 2drop f f ] if ;
+
+ERROR: no-such-slot slot ;
+ERROR: read-only-slot slot ;
+
+: check-set-slot ( val slot -- val offset )
+    {
+        { [ dup not ] [ no-such-slot ] }
+        { [ dup read-only>> ] [ read-only-slot ] }
+        { [ 2dup class>> instance? not ] [ class>> bad-slot-value ] }
+        [ offset>> ]
+    } cond ; inline
+
+M: mirror set-at ( val key mirror -- )
+    [ object-slots slot-named check-set-slot ] [ object>> ] bi
+    swap set-slot ;
+
+M: mirror delete-at ( key mirror -- )
+    f -rot set-at ;
+
+M: mirror clear-assoc ( mirror -- )
+    [ object>> ] [ object-slots ] bi [
+        [ initial>> ] [ offset>> ] bi swapd set-slot
+    ] with each ;
+
+M: mirror >alist ( mirror -- alist )
+    [ object-slots [ [ name>> ] map ] [ [ offset>> ] map ] bi ]
+    [ object>> [ swap slot ] curry ] bi
+    map zip ;
+
+M: mirror assoc-size object>> layout-of size>> ;
+
+INSTANCE: mirror assoc
+
+GENERIC: make-mirror ( obj -- assoc )
+M: hashtable make-mirror ;
+M: integer make-mirror drop f ;
+M: array make-mirror <enum> ;
+M: vector make-mirror <enum> ;
+M: quotation make-mirror <enum> ;
+M: object make-mirror <mirror> ;
diff --git a/core/mirrors/summary.txt b/basis/mirrors/summary.txt
similarity index 100%
rename from core/mirrors/summary.txt
rename to basis/mirrors/summary.txt
diff --git a/core/mirrors/tags.txt b/basis/mirrors/tags.txt
similarity index 100%
rename from core/mirrors/tags.txt
rename to basis/mirrors/tags.txt
diff --git a/extra/io/sockets/secure/authors.txt b/basis/models/authors.txt
similarity index 100%
rename from extra/io/sockets/secure/authors.txt
rename to basis/models/authors.txt
diff --git a/basis/models/compose/compose-docs.factor b/basis/models/compose/compose-docs.factor
new file mode 100755
index 0000000000..0f88499618
--- /dev/null
+++ b/basis/models/compose/compose-docs.factor
@@ -0,0 +1,31 @@
+USING: help.syntax help.markup kernel math classes classes.tuple
+calendar models ;
+IN: models.compose
+
+HELP: compose
+{ $class-description "Composed model values are computed by collecting the values from a sequence of underlying models into a new sequence. Composed models are automatically updated when underlying models change. Composed models are constructed by " { $link <compose> } "."
+$nl
+"A composed model whose children are all " { $link "models-range" } " conforms to the " { $link "range-model-protocol" } " and represents a point in n-dimensional space which is bounded by a rectangle." }
+{ $examples
+    "The following code displays a pair of sliders, and an updating label showing their current values:"
+    { $code
+        "USING: models ui.gadgets.labels ui.gadgets.sliders ui.gadgets.panes ;"
+        ": <funny-slider> <x-slider> 100 over set-slider-max ;"
+        "<funny-slider> <funny-slider> 2array"
+        "dup make-pile gadget."
+        "dup [ gadget-model ] map <compose> [ unparse ] <filter>"
+        "<label-control> gadget."
+    }
+} ;
+
+HELP: <compose>
+{ $values { "models" "a sequence of models" } { "compose" "a new " { $link compose } } }
+{ $description "Creates a new instance of " { $link compose } ". The value of the new compose model is obtained by mapping the " { $snippet "value" } " slot accessor over the given sequence of models." }
+{ $examples "See the example in the documentation for " { $link compose } "." } ;
+
+ARTICLE: "models-compose" "Composed models"
+"Composed model values are computed by collecting the values from a sequence of underlying models into a new sequence."
+{ $subsection compose }
+{ $subsection <compose> } ;
+
+ABOUT: "models-compose"
diff --git a/basis/models/compose/compose-tests.factor b/basis/models/compose/compose-tests.factor
new file mode 100755
index 0000000000..16a5ab339c
--- /dev/null
+++ b/basis/models/compose/compose-tests.factor
@@ -0,0 +1,24 @@
+USING: arrays generic kernel math models namespaces sequences assocs
+tools.test models.compose accessors ;
+IN: models.compose.tests
+
+! Test compose
+[ ] [
+    1 <model> "a" set
+    2 <model> "b" set
+    "a" get "b" get 2array <compose> "c" set
+] unit-test
+
+[ ] [ "c" get activate-model ] unit-test
+
+[ { 1 2 } ] [ "c" get value>> ] unit-test
+
+[ ] [ 3 "b" get set-model ] unit-test
+
+[ { 1 3 } ] [ "c" get value>> ] unit-test
+
+[ ] [ { 4 5 } "c" get set-model ] unit-test
+
+[ { 4 5 } ] [ "c" get value>> ] unit-test
+
+[ ] [ "c" get deactivate-model ] unit-test
diff --git a/basis/models/compose/compose.factor b/basis/models/compose/compose.factor
new file mode 100755
index 0000000000..a2c3385248
--- /dev/null
+++ b/basis/models/compose/compose.factor
@@ -0,0 +1,54 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors models kernel sequences ;
+IN: models.compose
+
+TUPLE: compose < model ;
+
+: new-compose ( models class -- compose )
+    f swap new-model
+        swap clone >>dependencies ; inline
+
+: <compose> ( models -- compose )
+    compose new-compose ;
+
+: composed-value [ dependencies>> ] dip map ; inline
+
+: set-composed-value [ dependencies>> ] dip 2each ; inline
+
+M: compose model-changed
+    nip
+    [ [ value>> ] composed-value ] keep set-model ;
+
+M: compose model-activated dup model-changed ;
+
+M: compose update-model
+    dup value>> swap [ set-model ] set-composed-value ;
+
+M: compose range-value
+    [ range-value ] composed-value ;
+
+M: compose range-page-value
+    [ range-page-value ] composed-value ;
+
+M: compose range-min-value
+    [ range-min-value ] composed-value ;
+
+M: compose range-max-value
+    [ range-max-value ] composed-value ;
+
+M: compose range-max-value*
+    [ range-max-value* ] composed-value ;
+
+M: compose set-range-value
+    [ clamp-value ] keep
+    [ set-range-value ] set-composed-value ;
+
+M: compose set-range-page-value
+    [ set-range-page-value ] set-composed-value ;
+
+M: compose set-range-min-value
+    [ set-range-min-value ] set-composed-value ;
+
+M: compose set-range-max-value
+    [ set-range-max-value ] set-composed-value ;
diff --git a/basis/models/delay/delay-docs.factor b/basis/models/delay/delay-docs.factor
new file mode 100755
index 0000000000..1f7aff1286
--- /dev/null
+++ b/basis/models/delay/delay-docs.factor
@@ -0,0 +1,29 @@
+USING: help.syntax help.markup kernel math classes classes.tuple
+calendar models ;
+IN: models.delay
+
+HELP: delay
+{ $class-description "Delay models have the same value as their underlying model, however the value only changes after a timer expires. If the underlying model's value changes again before the timer expires, the timer restarts. Delay models are constructed by " { $link <delay> } "." }
+{ $examples
+    "The following code displays a sliders and a label which is updated half a second after the slider stops changing:"
+    { $code
+        "USING: models ui.gadgets.labels ui.gadgets.sliders ui.gadgets.panes calendar ;"
+        ": <funny-slider>"
+        "    0 0 0 100 <range> <x-slider> 500 over set-slider-max ;"
+        "<funny-slider> dup gadget."
+        "gadget-model 1/2 seconds <delay> [ number>string ] <filter>"
+        "<label-control> gadget."
+    }
+} ;
+
+HELP: <delay>
+{ $values { "model" model } { "timeout" duration } { "delay" delay } }
+{ $description "Creates a new instance of " { $link delay } ". The timeout must elapse from the time the underlying model last changed to when the delay model value is changed and its connections are notified." }
+{ $examples "See the example in the documentation for " { $link delay } "." } ;
+
+ARTICLE: "models-delay" "Delay models"
+"Delay models are used to implement delayed updating of gadgets in response to user input."
+{ $subsection delay }
+{ $subsection <delay> } ;
+
+ABOUT: "models-delay"
diff --git a/basis/models/delay/delay.factor b/basis/models/delay/delay.factor
new file mode 100755
index 0000000000..a1d4ee9907
--- /dev/null
+++ b/basis/models/delay/delay.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel models alarms ;
+IN: models.delay
+
+TUPLE: delay < model model timeout alarm ;
+
+: update-delay-model ( delay -- )
+    [ model>> value>> ] keep set-model ;
+
+: <delay> ( model timeout -- delay )
+    f delay new-model
+        swap >>timeout
+        over >>model
+        [ add-dependency ] keep ;
+
+: cancel-delay ( delay -- )
+    alarm>> [ cancel-alarm ] when* ;
+
+: start-delay ( delay -- )
+    dup
+    [ [ f >>alarm update-delay-model ] curry ] [ timeout>> ] bi later
+    >>alarm drop ;
+
+M: delay model-changed nip dup cancel-delay start-delay ;
+
+M: delay model-activated update-delay-model ;
diff --git a/basis/models/filter/filter-docs.factor b/basis/models/filter/filter-docs.factor
new file mode 100755
index 0000000000..8c50aac65b
--- /dev/null
+++ b/basis/models/filter/filter-docs.factor
@@ -0,0 +1,27 @@
+USING: help.syntax help.markup kernel math classes classes.tuple
+calendar models ;
+IN: models.filter
+
+HELP: filter
+{ $class-description "Filter model values are computed by applying a quotation to the value of another model. Filters are automatically updated when the underlying model changes. Filters are constructed by " { $link <filter> } "." }
+{ $examples
+    "The following code displays a label showing the result of applying " { $link sq } " to the value 5:"
+    { $code
+        "USING: models ui.gadgets.labels ui.gadgets.panes ;"
+        "5 <model> [ sq ] <filter> [ number>string ] <filter>"
+        "<label-control> gadget."
+    }
+    "An exercise for the reader is to keep the original model around on the stack, and change its value to 6, observing that the label will immediately display 36."
+} ;
+
+HELP: <filter>
+{ $values { "model" model } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } { "filter" "a new " { $link filter } } }
+{ $description "Creates a new instance of " { $link filter } ". The value of the new filter model is computed by applying the quotation to the value." }
+{ $examples "See the example in the documentation for " { $link filter } "." } ;
+
+ARTICLE: "models-filter" "Filter models"
+"Filter model values are computed by applying a quotation to the value of another model."
+{ $subsection filter }
+{ $subsection <filter> } ;
+
+ABOUT: "models-filter"
diff --git a/basis/models/filter/filter-tests.factor b/basis/models/filter/filter-tests.factor
new file mode 100755
index 0000000000..ad43568e06
--- /dev/null
+++ b/basis/models/filter/filter-tests.factor
@@ -0,0 +1,24 @@
+USING: arrays generic kernel math models namespaces sequences assocs
+tools.test models.filter accessors ;
+IN: models.filter.tests
+
+! Test multiple filters
+3 <model> "x" set
+"x" get [ 2 * ] <filter> dup "z" set
+[ 1+ ] <filter> "y" set
+[ ] [ "y" get activate-model ] unit-test
+[ t ] [ "z" get "x" get connections>> memq? ] unit-test
+[ 7 ] [ "y" get value>> ] unit-test
+[ ] [ 4 "x" get set-model ] unit-test
+[ 9 ] [ "y" get value>> ] unit-test
+[ ] [ "y" get deactivate-model ] unit-test
+[ f ] [ "z" get "x" get connections>> memq? ] unit-test
+
+3 <model> "x" set
+"x" get [ sq ] <filter> "y" set
+
+4 "x" get set-model
+
+"y" get activate-model
+[ 16 ] [ "y" get value>> ] unit-test
+"y" get deactivate-model
diff --git a/basis/models/filter/filter.factor b/basis/models/filter/filter.factor
new file mode 100755
index 0000000000..b16bdc9a48
--- /dev/null
+++ b/basis/models/filter/filter.factor
@@ -0,0 +1,17 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors models kernel ;
+IN: models.filter
+
+TUPLE: filter < model model quot ;
+
+: <filter> ( model quot -- filter )
+    f filter new-model
+        swap >>quot
+        over >>model
+        [ add-dependency ] keep ;
+
+M: filter model-changed
+    [ [ value>> ] [ quot>> ] bi* call ] [ nip ] 2bi set-model ;
+
+M: filter model-activated [ model>> ] keep model-changed ;
diff --git a/basis/models/history/history-docs.factor b/basis/models/history/history-docs.factor
new file mode 100755
index 0000000000..d1577298c2
--- /dev/null
+++ b/basis/models/history/history-docs.factor
@@ -0,0 +1,36 @@
+USING: help.syntax help.markup kernel math classes classes.tuple
+calendar models ;
+IN: models.history
+
+HELP: history
+{ $class-description "History models record a timeline of previous values on calls to " { $link add-history } ", and can travel back and forth on the timeline with " { $link go-back } " and " { $link go-forward } ". History models are constructed by " { $link <history> } "." } ;
+
+HELP: <history>
+{ $values { "value" object } { "history" "a new " { $link history } } }
+{ $description "Creates a new history model with an initial value." } ;
+
+{ <history> add-history go-back go-forward } related-words
+
+HELP: go-back
+{ $values { "history" history } }
+{ $description "Restores the previous value and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
+
+HELP: go-forward
+{ $values { "history" history } }
+{ $description "Restores the value set prior to the last call to " { $link go-back } " and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
+
+HELP: add-history
+{ $values { "history" history } }
+{ $description "Adds the current value to the history." } ;
+
+ARTICLE: "models-history" "History models"
+"History models record previous values."
+{ $subsection history }
+{ $subsection <history> }
+"Recording history:"
+{ $subsection add-history }
+"Navigating the history:"
+{ $subsection go-back }
+{ $subsection go-forward } ;
+
+ABOUT: "models-history"
diff --git a/basis/models/history/history-tests.factor b/basis/models/history/history-tests.factor
new file mode 100755
index 0000000000..c89dd5c5b3
--- /dev/null
+++ b/basis/models/history/history-tests.factor
@@ -0,0 +1,37 @@
+USING: arrays generic kernel math models namespaces sequences assocs
+tools.test models.history accessors ;
+IN: models.history.tests
+
+f <history> "history" set
+
+"history" get add-history
+
+[ t ] [ "history" get back>> empty? ] unit-test
+[ t ] [ "history" get forward>> empty? ] unit-test
+
+"history" get add-history
+3 "history" get set-model
+
+[ t ] [ "history" get back>> empty? ] unit-test
+[ t ] [ "history" get forward>> empty? ] unit-test
+
+"history" get add-history
+4 "history" get set-model
+
+[ f ] [ "history" get back>> empty? ] unit-test
+[ t ] [ "history" get forward>> empty? ] unit-test
+
+"history" get go-back
+
+[ 3 ] [ "history" get value>> ] unit-test
+
+[ t ] [ "history" get back>> empty? ] unit-test
+[ f ] [ "history" get forward>> empty? ] unit-test
+
+"history" get go-forward
+
+[ 4 ] [ "history" get value>> ] unit-test
+
+[ f ] [ "history" get back>> empty? ] unit-test
+[ t ] [ "history" get forward>> empty? ] unit-test
+
diff --git a/basis/models/history/history.factor b/basis/models/history/history.factor
new file mode 100755
index 0000000000..caf6f39d5c
--- /dev/null
+++ b/basis/models/history/history.factor
@@ -0,0 +1,31 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel models sequences ;
+IN: models.history
+
+TUPLE: history < model back forward ;
+
+: reset-history ( history -- history )
+    V{ } clone >>back
+    V{ } clone >>forward ; inline
+
+: <history> ( value -- history )
+    history new-model
+        reset-history ;
+
+: (add-history) ( history to -- )
+    swap value>> dup [ swap push ] [ 2drop ] if ;
+
+: go-back/forward ( history to from -- )
+    [ 2drop ]
+    [ >r dupd (add-history) r> pop swap set-model ] if-empty ;
+
+: go-back ( history -- )
+    dup [ forward>> ] [ back>> ] bi go-back/forward ;
+
+: go-forward ( history -- )
+    dup [ back>> ] [ forward>> ] bi go-back/forward ;
+
+: add-history ( history -- )
+    dup forward>> delete-all
+    dup back>> (add-history) ;
diff --git a/basis/models/mapping/mapping-tests.factor b/basis/models/mapping/mapping-tests.factor
new file mode 100755
index 0000000000..6e1a1dc8d0
--- /dev/null
+++ b/basis/models/mapping/mapping-tests.factor
@@ -0,0 +1,34 @@
+USING: arrays generic kernel math models namespaces sequences assocs
+tools.test models.mapping accessors ;
+IN: models.mapping.tests
+
+! Test mapping
+[ ] [
+    [
+        1 <model> "one" set
+        2 <model> "two" set
+    ] H{ } make-assoc
+    <mapping> "m" set
+] unit-test
+
+[ ] [ "m" get activate-model ] unit-test
+
+[ H{ { "one" 1 } { "two" 2 } } ] [
+    "m" get value>>
+] unit-test
+
+[ ] [
+    H{ { "one" 3 } { "two" 4 } } 
+    "m" get set-model
+] unit-test
+
+[ H{ { "one" 3 } { "two" 4 } } ] [
+    "m" get value>>
+] unit-test
+
+[ H{ { "one" 5 } { "two" 4 } } ] [
+    5 "one" "m" get assoc>> at set-model
+    "m" get value>>
+] unit-test
+
+[ ] [ "m" get deactivate-model ] unit-test
diff --git a/basis/models/mapping/mapping.factor b/basis/models/mapping/mapping.factor
new file mode 100755
index 0000000000..c401714dd4
--- /dev/null
+++ b/basis/models/mapping/mapping.factor
@@ -0,0 +1,21 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors models kernel assocs ;
+IN: models.mapping
+
+TUPLE: mapping < model assoc ;
+
+: <mapping> ( models -- mapping )
+    f mapping new-model
+        over values >>dependencies
+        swap >>assoc ;
+
+M: mapping model-changed
+    nip [ assoc>> [ value>> ] assoc-map ] keep set-model ;
+
+M: mapping model-activated
+    dup model-changed ;
+
+M: mapping update-model
+    [ value>> ] [ assoc>> ] bi
+    [ swapd at set-model ] curry assoc-each ;
diff --git a/basis/models/models-docs.factor b/basis/models/models-docs.factor
new file mode 100755
index 0000000000..97e4557ada
--- /dev/null
+++ b/basis/models/models-docs.factor
@@ -0,0 +1,147 @@
+USING: help.syntax help.markup kernel math classes classes.tuple
+calendar ;
+IN: models
+
+HELP: model
+{ $class-description "A mutable cell holding a single value. When the value is changed, a sequence of connected objects are notified. Models have the following slots:"
+    { $list
+        { { $snippet "value" } " - the value of the model. Use " { $link set-model } " to change the value." }
+        { { $snippet "connections" } " - a sequence of objects implementing the " { $link model-changed } " generic word, to be notified when the model's value changes." }
+        { { $snippet "dependencies" } " - a sequence of models which should have this model added to their sequence of connections when activated." }
+        { { $snippet "ref" } " - a reference count tracking the number of models which depend on this one." }
+    }
+"Other classes may delegate to " { $link model } "."
+} ;
+
+HELP: <model>
+{ $values { "value" object } { "model" "a new " { $link model } } }
+{ $description "Creates a new model with an initial value." } ;
+
+HELP: add-dependency
+{ $values { "dep" model } { "model" model } }
+{ $description "Registers a dependency. When " { $snippet "model" } " is activated, it will be added to " { $snippet "dep" } "'s connections and notified when " { $snippet "dep" } " changes." }
+{ $notes "This word should not be called directly unless you are implementing your own model class." } ;
+
+{ add-dependency remove-dependency activate-model deactivate-model } related-words
+
+HELP: remove-dependency
+{ $values { "dep" model } { "model" model } }
+{ $description "Unregisters a dependency." }
+{ $notes "This word should not be called directly unless you are implementing your own model class." } ;
+
+HELP: model-activated
+{ $values { "model" model } }
+{ $contract "Called after a model has been activated." } ;
+
+{ model-activated activate-model deactivate-model } related-words
+
+HELP: activate-model
+{ $values { "model" model } }
+{ $description "Increments the reference count of the model. If it was previously zero, this model is added as a connection to all models registered as dependencies by " { $link add-dependency } "." }
+{ $warning "Calls to " { $link activate-model } " and " { $link deactivate-model } " should be balanced to keep the reference counting consistent, otherwise " { $link model-changed } " might be called at the wrong time or not at all." } ;
+
+HELP: deactivate-model
+{ $values { "model" model } }
+{ $description "Decrements the reference count of the model. If it reaches zero, this model is removed as a connection from all models registered as dependencies by " { $link add-dependency } "." }
+{ $warning "Calls to " { $link activate-model } " and " { $link deactivate-model } " should be balanced to keep the reference counting consistent, otherwise " { $link model-changed } " might be called at the wrong time or not at all." } ;
+
+HELP: model-changed
+{ $values { "model" model } { "observer" object } }
+{ $contract "Called to notify observers of a model that the model value has changed as a result of a call to " { $link set-model } ". Observers can be registered with " { $link add-connection } "." } ;
+
+{ add-connection remove-connection model-changed } related-words
+
+HELP: add-connection
+{ $values { "observer" object } { "model" model } }
+{ $contract "Registers an object interested in being notified of changes to the model's value. When the value is changed as a result of a call to " { $link set-model } ", the " { $link model-changed } " word is called on the observer." } ;
+
+HELP: remove-connection
+{ $values { "observer" object } { "model" model } }
+{ $contract "Unregisters an object no longer interested in being notified of changes to the model's value." } ;
+
+HELP: set-model
+{ $values { "value" object } { "model" model } }
+{ $description "Changes the value of a model and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
+
+{ set-model change-model (change-model) } related-words
+
+HELP: change-model
+{ $values { "model" model } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } }
+{ $description "Applies the quotation to the current value of the model to yield a new value, then changes the value of the model to the new value, and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
+
+HELP: (change-model)
+{ $values { "model" model } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } }
+{ $description "Applies the quotation to the current value of the model to yield a new value, then changes the value of the model to the new value without notifying any observers registered with " { $link add-connection } "." }
+{ $notes "There are very few reasons for user code to call this word. Instead, call " { $link change-model } ", which notifies observers." } ;
+
+HELP: range-value
+{ $values { "model" model } { "value" object } }
+{ $contract "Outputs the current value of a range model." } ;
+
+HELP: range-page-value
+{ $values { "model" model } { "value" object } }
+{ $contract "Outputs the page size of a range model." } ;
+
+HELP: range-min-value
+{ $values { "model" model } { "value" object } }
+{ $contract "Outputs the minimum value of a range model." } ;
+
+HELP: range-max-value
+{ $values { "model" model } { "value" object } }
+{ $contract "Outputs the maximum value of a range model." } ;
+
+HELP: range-max-value*
+{ $values { "model" model } { "value" object } }
+{ $contract "Outputs the slider position for a range model. Since the bottom of the slider cannot exceed the maximum value, this is equal to the maximum value minus the page size." } ;
+
+HELP: set-range-value
+{ $values { "value" object } { "model" model } }
+{ $description "Sets the current value of a range model." } 
+{ $side-effects "model" } ;
+
+HELP: set-range-page-value
+{ $values { "value" object } { "model" model } }
+{ $description "Sets the page size of a range model." } 
+{ $side-effects "model" } ;
+
+HELP: set-range-min-value
+{ $values { "value" object } { "model" model } }
+{ $description "Sets the minimum value of a range model." } 
+{ $side-effects "model" } ;
+
+HELP: set-range-max-value
+{ $values { "value" object } { "model" model } }
+{ $description "Sets the maximum value of a range model." }
+{ $side-effects "model" } ;
+
+ARTICLE: "models" "Models"
+"The " { $vocab-link "models" } " vocabulary provides basic support for dataflow programming. A model is an observable value. Changing a model's value notifies other objects which depend on the model automatically, and models may depend on each other's values."
+$nl
+"The class of models:"
+{ $subsection model }
+"Creating models:"
+{ $subsection <model> }
+"Adding and removing connections:"
+{ $subsection add-connection }
+{ $subsection remove-connection }
+"Generic word called on model connections when the model value changes:"
+{ $subsection model-changed }
+"When using models which are not associated with controls (or when unit testing controls), you must activate and deactivate models manually:"
+{ $subsection activate-model }
+{ $subsection deactivate-model }
+{ $subsection "models-impl" }
+{ $subsection "models-filter" }
+{ $subsection "models-compose" }
+{ $subsection "models-history" }
+{ $subsection "models-range" }
+{ $subsection "models-delay" } ;
+
+ARTICLE: "models-impl" "Implementing models"
+"New types of models can be defined, for example see " { $vocab-link "models.filter" } "."
+$nl
+"Models can execute hooks when activated:"
+{ $subsection model-activated }
+"Models can override requests to change their value, for example to perform validation:"
+{ $subsection set-model } ;
+
+ABOUT: "models"
diff --git a/basis/models/models-tests.factor b/basis/models/models-tests.factor
new file mode 100755
index 0000000000..fe10d3ab8e
--- /dev/null
+++ b/basis/models/models-tests.factor
@@ -0,0 +1,33 @@
+USING: arrays generic kernel math models models.compose
+namespaces sequences assocs accessors tools.test ;
+IN: models.tests
+
+TUPLE: model-tester hit? ;
+
+: <model-tester> model-tester new ;
+
+M: model-tester model-changed nip t >>hit? drop ;
+
+[ T{ model-tester f t } ]
+[
+    T{ model-tester f f } 3 <model> 2dup add-connection
+    5 swap set-model
+] unit-test
+
+3 <model> "model-a" set
+4 <model> "model-b" set
+"model-a" get "model-b" get 2array <compose> "model-c" set
+
+"model-c" get activate-model
+[ { 3 4 } ] [ "model-c" get value>>  ] unit-test
+"model-c" get deactivate-model
+
+T{ model-tester f f } "tester" set
+
+[ T{ model-tester f t } { 6 4 } ]
+[
+    "tester" get "model-c" get add-connection
+    6 "model-a" get set-model
+    "tester" get
+    "model-c" get value>>
+] unit-test
diff --git a/basis/models/models.factor b/basis/models/models.factor
new file mode 100755
index 0000000000..45519f7021
--- /dev/null
+++ b/basis/models/models.factor
@@ -0,0 +1,114 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors generic kernel math sequences arrays assocs
+alarms calendar math.order ;
+IN: models
+
+TUPLE: model < identity-tuple
+value connections dependencies ref locked? ;
+
+: new-model ( value class -- model )
+    new
+        swap >>value
+        V{ } clone >>connections
+        V{ } clone >>dependencies
+        0 >>ref ; inline
+
+: <model> ( value -- model )
+    model new-model ;
+
+M: model hashcode* drop model hashcode* ;
+
+: add-dependency ( dep model -- )
+    dependencies>> push ;
+
+: remove-dependency ( dep model -- )
+    dependencies>> delete ;
+
+DEFER: add-connection
+
+GENERIC: model-activated ( model -- )
+
+M: model model-activated drop ;
+
+: ref-model ( model -- n )
+    [ 1+ ] change-ref ref>> ;
+
+: unref-model ( model -- n )
+    [ 1- ] change-ref ref>> ;
+
+: activate-model ( model -- )
+    dup ref-model 1 = [
+        dup dependencies>>
+        [ dup activate-model dupd add-connection ] each
+        model-activated
+    ] [
+        drop
+    ] if ;
+
+DEFER: remove-connection
+
+: deactivate-model ( model -- )
+    dup unref-model zero? [
+        dup dependencies>>
+        [ dup deactivate-model remove-connection ] with each
+    ] [
+        drop
+    ] if ;
+
+GENERIC: model-changed ( model observer -- )
+
+: add-connection ( observer model -- )
+    dup connections>> empty? [ dup activate-model ] when
+    connections>> push ;
+
+: remove-connection ( observer model -- )
+    [ connections>> delete ] keep
+    dup connections>> empty? [ dup deactivate-model ] when
+    drop ;
+
+: with-locked-model ( model quot -- )
+    swap
+    t >>locked?
+    slip
+    f >>locked? drop ; inline
+
+GENERIC: update-model ( model -- )
+
+M: model update-model drop ;
+
+: notify-connections ( model -- )
+    dup connections>> [ model-changed ] with each ;
+
+: set-model ( value model -- )
+    dup locked?>> [
+        2drop
+    ] [
+        dup [
+            swap >>value
+            [ update-model ] [ notify-connections ] bi
+        ] with-locked-model
+    ] if ;
+
+: ((change-model)) ( model quot -- newvalue model )
+    over >r >r value>> r> call r> ; inline
+
+: change-model ( model quot -- )
+    ((change-model)) set-model ; inline
+
+: (change-model) ( model quot -- )
+    ((change-model)) (>>value) ; inline
+
+GENERIC: range-value ( model -- value )
+GENERIC: range-page-value ( model -- value )
+GENERIC: range-min-value ( model -- value )
+GENERIC: range-max-value ( model -- value )
+GENERIC: range-max-value* ( model -- value )
+GENERIC: set-range-value ( value model -- )
+GENERIC: set-range-page-value ( value model -- )
+GENERIC: set-range-min-value ( value model -- )
+GENERIC: set-range-max-value ( value model -- )
+
+: clamp-value ( value range -- newvalue )
+    [ range-min-value max ] keep
+    range-max-value* min ;
diff --git a/basis/models/range/range-docs.factor b/basis/models/range/range-docs.factor
new file mode 100755
index 0000000000..6a767b2e13
--- /dev/null
+++ b/basis/models/range/range-docs.factor
@@ -0,0 +1,58 @@
+USING: help.syntax help.markup kernel math classes classes.tuple
+calendar models ;
+IN: models.range
+
+HELP: range
+{ $class-description "Range models implement the " { $link "range-model-protocol" } " with real numbers as the minimum, current, maximum, and page size. Range models are created with " { $link <range> } "." }
+{ $notes { $link "ui.gadgets.sliders" } " use range models." } ;
+
+HELP: range-model
+{ $values { "range" range } { "model" model } }
+{ $description "Outputs a model holding a range model's current value." }
+{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
+
+HELP: range-min
+{ $values { "range" range } { "model" model } }
+{ $description "Outputs a model holding a range model's minimum value." }
+{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
+
+HELP: range-max
+{ $values { "range" range } { "model" model } }
+{ $description "Outputs a model holding a range model's maximum value." }
+{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
+
+HELP: range-page
+{ $values { "range" range } { "model" model } }
+{ $description "Outputs a model holding a range model's page size." }
+{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
+
+HELP: move-by
+{ $values { "amount" real } { "range" range } }
+{ $description "Adds a number to a range model's current value." }
+{ $side-effects "range" } ;
+
+HELP: move-by-page
+{ $values { "amount" real } { "range" range } }
+{ $description "Adds a multiple of the page size to a range model's current value." }
+{ $side-effects "range" } ;
+
+ARTICLE: "models-range" "Range models"
+"Range models ensure their value is a real number within a fixed range."
+{ $subsection range }
+{ $subsection <range> }
+"Range models conform to a protocol for getting and setting the current value, as well as the endpoints of the range."
+{ $subsection "range-model-protocol" } ;
+
+ARTICLE: "range-model-protocol" "Range model protocol"
+"The range model protocol is implemented by the " { $link range } " and " { $link compose } " classes. User-defined models may implement it too."
+{ $subsection range-value          }
+{ $subsection range-page-value     } 
+{ $subsection range-min-value      } 
+{ $subsection range-max-value      } 
+{ $subsection range-max-value*     } 
+{ $subsection set-range-value      } 
+{ $subsection set-range-page-value } 
+{ $subsection set-range-min-value  } 
+{ $subsection set-range-max-value  } ;
+
+ABOUT: "models-range"
diff --git a/basis/models/range/range-tests.factor b/basis/models/range/range-tests.factor
new file mode 100755
index 0000000000..c8a2d1acc6
--- /dev/null
+++ b/basis/models/range/range-tests.factor
@@ -0,0 +1,36 @@
+IN: models.range.tests
+USING: arrays generic kernel math models namespaces sequences assocs
+tools.test models.range ;
+
+! Test <range> 
+: setup-range 0 0 0 255 <range> ;
+
+! clamp-value should not go past range ends
+[ 0   ] [ -10 setup-range clamp-value ] unit-test
+[ 255 ] [ 2000 setup-range clamp-value ] unit-test
+[ 14  ] [ 14 setup-range clamp-value ] unit-test
+
+! range min/max/page values should be correct
+[ 0 ] [ setup-range range-page-value ] unit-test
+[ 0 ] [ setup-range range-min-value ] unit-test
+[ 255 ] [ setup-range range-max-value ] unit-test
+
+! should be able to set the value within the range and get back
+[ 15 ] [ setup-range 15 over set-range-value range-value ] unit-test
+[ 0 ] [ setup-range -15 over set-range-value range-value ] unit-test
+[ 255 ] [ setup-range 4000 over set-range-value range-value ] unit-test
+
+! should be able to change the range min/max/page value
+[ 1 ] [ setup-range 1 over set-range-page-value range-page-value ] unit-test
+[ 50 ] [ setup-range 50 over set-range-min-value range-min-value ] unit-test
+[ 4000 ] [ setup-range 4000 over set-range-max-value range-max-value ] unit-test
+
+! should be able to move by positive and negative values
+[ 30 ] [ setup-range 30 over move-by range-value ] unit-test
+[ 0 ] [ setup-range 30 over move-by -30 over move-by range-value ] unit-test
+
+! should be able to move by a page of 10
+[ 10 ] [ 
+  setup-range 10 over set-range-page-value 
+  1 over move-by-page range-value 
+] unit-test
diff --git a/basis/models/range/range.factor b/basis/models/range/range.factor
new file mode 100755
index 0000000000..8e230a2d0c
--- /dev/null
+++ b/basis/models/range/range.factor
@@ -0,0 +1,42 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel models arrays sequences math math.order
+models.compose ;
+IN: models.range
+
+TUPLE: range < compose ;
+
+: <range> ( value min max page -- range )
+    4array [ <model> ] map range new-compose ;
+
+: range-model ( range -- model ) dependencies>> first ;
+: range-page ( range -- model ) dependencies>> second ;
+: range-min ( range -- model ) dependencies>> third ;
+: range-max ( range -- model ) dependencies>> fourth ;
+
+M: range range-value
+    [ range-model value>> ] keep clamp-value ;
+
+M: range range-page-value range-page value>> ;
+
+M: range range-min-value range-min value>> ;
+
+M: range range-max-value range-max value>> ;
+
+M: range range-max-value*
+    [ range-max-value ] [ range-page-value ] bi [-] ;
+
+M: range set-range-value
+    [ clamp-value ] [ range-model ] bi set-model ;
+
+M: range set-range-page-value range-page set-model ;
+
+M: range set-range-min-value range-min set-model ;
+
+M: range set-range-max-value range-max set-model ;
+
+: move-by ( amount range -- )
+    [ range-value + ] keep set-range-value ;
+
+: move-by-page ( amount range -- )
+    [ range-page-value * ] keep move-by ;
diff --git a/extra/models/summary.txt b/basis/models/summary.txt
similarity index 100%
rename from extra/models/summary.txt
rename to basis/models/summary.txt
diff --git a/extra/models/tags.txt b/basis/models/tags.txt
similarity index 100%
rename from extra/models/tags.txt
rename to basis/models/tags.txt
diff --git a/extra/multiline/authors.txt b/basis/multiline/authors.txt
similarity index 100%
rename from extra/multiline/authors.txt
rename to basis/multiline/authors.txt
diff --git a/extra/multiline/multiline-docs.factor b/basis/multiline/multiline-docs.factor
similarity index 51%
rename from extra/multiline/multiline-docs.factor
rename to basis/multiline/multiline-docs.factor
index 0c0eb5e9dd..4782571d4a 100644
--- a/extra/multiline/multiline-docs.factor
+++ b/basis/multiline/multiline-docs.factor
@@ -9,14 +9,30 @@ HELP: <"
 { $syntax "<\" text \">" }
 { $description "This forms a multiline string literal ending in \">. Unlike the " { $link POSTPONE: STRING: } " form, you can end it in the middle of a line. This construct is non-nesting. In the example above, the string would be parsed as \"text\"." } ;
 
-{ POSTPONE: <" POSTPONE: STRING: } related-words
+HELP: /*
+{ $syntax "/* comment */" }
+{ $description "Provides C-like comments that can span multiple lines. One caveat is that " { $snippet "/*" } " and " { $snippet "*/" } " are still tokens and must not abut the comment text itself." }
+{ $example "USING: multiline ;"
+           "/* I think that I shall never see"
+           "   A poem lovely as a tree. */"
+           ""
+} ;
 
-HELP: parse-here
-{ $values { "str" "a string" } }
-{ $description "Parses a multiline string literal, as used by " { $link POSTPONE: STRING: } "." } ;
+{ POSTPONE: <" POSTPONE: STRING: } related-words
 
 HELP: parse-multiline-string
 { $values { "end-text" "a string delineating the end" } { "str" "the parsed string" } }
-{ $description "Parses a multiline string literal, as used by " { $link POSTPONE: <" } ". The end-text is the delimiter for the end." } ;
+{ $description "Parses the input stream until the " { $snippet "end-text" } " is reached and returns the parsed text as a string." }
+{ $notes "Used to implement " { $link POSTPONE: /* } " and " { $link POSTPONE: <" } "." } ;
 
-{ parse-here parse-multiline-string } related-words
+ARTICLE: "multiline" "Multiline"
+"Multiline strings:"
+{ $subsection POSTPONE: STRING: }
+{ $subsection POSTPONE: <" }
+"Multiline comments:"
+{ $subsection POSTPONE: /* }
+"Writing new multiline parsing words:"
+{ $subsection parse-multiline-string }
+;
+
+ABOUT: "multiline"
diff --git a/extra/multiline/multiline-tests.factor b/basis/multiline/multiline-tests.factor
similarity index 100%
rename from extra/multiline/multiline-tests.factor
rename to basis/multiline/multiline-tests.factor
diff --git a/extra/multiline/multiline.factor b/basis/multiline/multiline.factor
similarity index 75%
rename from extra/multiline/multiline.factor
rename to basis/multiline/multiline.factor
index ce79bdaf5f..856b9ad456 100755
--- a/extra/multiline/multiline.factor
+++ b/basis/multiline/multiline.factor
@@ -1,10 +1,12 @@
 ! Copyright (C) 2007 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces parser kernel sequences words quotations math ;
+USING: namespaces parser lexer kernel sequences words quotations math
+accessors ;
 IN: multiline
 
+<PRIVATE
 : next-line-text ( -- str )
-    lexer get dup next-line lexer-line-text ;
+    lexer get dup next-line line-text>> ;
 
 : (parse-here) ( -- )
     next-line-text [
@@ -12,6 +14,7 @@ IN: multiline
         [ drop lexer get next-line ]
         [ % "\n" % (parse-here) ] if
     ] [ ";" unexpected-eof ] if* ;
+PRIVATE>
 
 : parse-here ( -- str )
     [ (parse-here) ] "" make but-last
@@ -21,20 +24,21 @@ IN: multiline
     CREATE-WORD
     parse-here 1quotation define-inline ; parsing
 
+<PRIVATE
 : (parse-multiline-string) ( start-index end-text -- end-index )
-    lexer get lexer-line-text [
+    lexer get line-text>> [
         2dup start
         [ rot dupd >r >r swap subseq % r> r> length + ] [
             rot tail % "\n" % 0
             lexer get next-line swap (parse-multiline-string)
         ] if*
     ] [ nip unexpected-eof ] if* ;
+PRIVATE>
 
 : parse-multiline-string ( end-text -- str )
     [
-        lexer get lexer-column swap (parse-multiline-string)
-        lexer get set-lexer-column
-    ] "" make rest but-last ;
+        lexer get [ swap (parse-multiline-string) ] change-column drop
+    ] "" make rest-slice but-last ;
 
 : <"
     "\">" parse-multiline-string parsed ; parsing
diff --git a/extra/multiline/summary.txt b/basis/multiline/summary.txt
similarity index 100%
rename from extra/multiline/summary.txt
rename to basis/multiline/summary.txt
diff --git a/extra/multiline/tags.txt b/basis/multiline/tags.txt
similarity index 100%
rename from extra/multiline/tags.txt
rename to basis/multiline/tags.txt
diff --git a/basis/nmake/nmake-tests.factor b/basis/nmake/nmake-tests.factor
new file mode 100644
index 0000000000..a6b1afb297
--- /dev/null
+++ b/basis/nmake/nmake-tests.factor
@@ -0,0 +1,8 @@
+IN: nmake.tests
+USING: nmake kernel tools.test ;
+
+[ ] [ [ ] { } nmake ] unit-test
+
+[ { 1 } { 2 } ] [ [ 1 0, 2 1, ] { { } { } } nmake ] unit-test
+
+[ [ ] [ call ] curry { { } } nmake ] must-infer
diff --git a/basis/nmake/nmake.factor b/basis/nmake/nmake.factor
new file mode 100644
index 0000000000..80c3ce3411
--- /dev/null
+++ b/basis/nmake/nmake.factor
@@ -0,0 +1,44 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces sequences math.parser kernel macros
+generalizations locals ;
+IN: nmake
+
+SYMBOL: building-seq 
+: get-building-seq ( n -- seq )
+    building-seq get nth ;
+
+: n, ( obj n -- ) get-building-seq push ;
+: n% ( seq n -- ) get-building-seq push-all ;
+: n# ( num n -- ) >r number>string r> n% ;
+
+: 0, ( obj -- ) 0 n, ;
+: 0% ( seq -- ) 0 n% ;
+: 0# ( num -- ) 0 n# ;
+: 1, ( obj -- ) 1 n, ;
+: 1% ( seq -- ) 1 n% ;
+: 1# ( num -- ) 1 n# ;
+: 2, ( obj -- ) 2 n, ;
+: 2% ( seq -- ) 2 n% ;
+: 2# ( num -- ) 2 n# ;
+: 3, ( obj -- ) 3 n, ;
+: 3% ( seq -- ) 3 n% ;
+: 3# ( num -- ) 3 n# ;
+: 4, ( obj -- ) 4 n, ;
+: 4% ( seq -- ) 4 n% ;
+: 4# ( num -- ) 4 n# ;
+
+MACRO: finish-nmake ( exemplars -- )
+    length [ firstn ] curry ;
+
+:: nmake ( quot exemplars -- )
+    [
+        exemplars
+        [ 0 swap new-resizable ] map
+        building-seq set
+
+        quot call
+
+        building-seq get
+        exemplars [ [ like ] 2map ] [ finish-nmake ] bi
+    ] with-scope ; inline
diff --git a/extra/io/streams/duplex/authors.txt b/basis/none/authors.txt
similarity index 100%
rename from extra/io/streams/duplex/authors.txt
rename to basis/none/authors.txt
diff --git a/core/none/deploy.factor b/basis/none/deploy.factor
similarity index 100%
rename from core/none/deploy.factor
rename to basis/none/deploy.factor
diff --git a/core/none/none-docs.factor b/basis/none/none-docs.factor
similarity index 100%
rename from core/none/none-docs.factor
rename to basis/none/none-docs.factor
diff --git a/core/none/none.factor b/basis/none/none.factor
similarity index 100%
rename from core/none/none.factor
rename to basis/none/none.factor
diff --git a/core/none/summary.txt b/basis/none/summary.txt
similarity index 100%
rename from core/none/summary.txt
rename to basis/none/summary.txt
diff --git a/extra/opengl/authors.txt b/basis/opengl/authors.txt
similarity index 100%
rename from extra/opengl/authors.txt
rename to basis/opengl/authors.txt
diff --git a/extra/io/streams/null/authors.txt b/basis/opengl/gl/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/streams/null/authors.txt
rename to basis/opengl/gl/authors.txt
diff --git a/extra/opengl/gl/extensions/extensions.factor b/basis/opengl/gl/extensions/extensions.factor
similarity index 98%
rename from extra/opengl/gl/extensions/extensions.factor
rename to basis/opengl/gl/extensions/extensions.factor
index 8f2eee9459..fd547c8b5a 100644
--- a/extra/opengl/gl/extensions/extensions.factor
+++ b/basis/opengl/gl/extensions/extensions.factor
@@ -1,6 +1,6 @@
 USING: alien alien.syntax combinators kernel parser sequences
 system words namespaces hashtables init math arrays assocs
-continuations ;
+continuations lexer ;
 IN: opengl.gl.extensions
 
 ERROR: unknown-gl-platform ;
diff --git a/extra/opengl/gl/gl-docs.factor b/basis/opengl/gl/gl-docs.factor
similarity index 98%
rename from extra/opengl/gl/gl-docs.factor
rename to basis/opengl/gl/gl-docs.factor
index f244b4d119..adc4d6f774 100644
--- a/extra/opengl/gl/gl-docs.factor
+++ b/basis/opengl/gl/gl-docs.factor
@@ -3,7 +3,7 @@ USING: help.syntax help.markup ;
 
 IN: opengl.gl
 
-ARTICLE: "opengl-low-level" "OpenGL Library (low level)"
+ARTICLE: "opengl-low-level" "OpenGL binding"
   { $subsection "opengl-specifying-vertices" }
   { $subsection "opengl-geometric-primitives" }
   { $subsection "opengl-modeling-transformations" } ;
diff --git a/extra/opengl/gl/gl.factor b/basis/opengl/gl/gl.factor
similarity index 100%
rename from extra/opengl/gl/gl.factor
rename to basis/opengl/gl/gl.factor
diff --git a/extra/opengl/gl/macosx/macosx.factor b/basis/opengl/gl/macosx/macosx.factor
similarity index 100%
rename from extra/opengl/gl/macosx/macosx.factor
rename to basis/opengl/gl/macosx/macosx.factor
diff --git a/basis/opengl/gl/macosx/tags.txt b/basis/opengl/gl/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/opengl/gl/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/opengl/gl/summary.txt b/basis/opengl/gl/summary.txt
similarity index 100%
rename from extra/opengl/gl/summary.txt
rename to basis/opengl/gl/summary.txt
diff --git a/extra/core-foundation/tags.txt b/basis/opengl/gl/tags.txt
similarity index 100%
rename from extra/core-foundation/tags.txt
rename to basis/opengl/gl/tags.txt
diff --git a/extra/opengl/gl/unix/authors.txt b/basis/opengl/gl/unix/authors.txt
similarity index 100%
rename from extra/opengl/gl/unix/authors.txt
rename to basis/opengl/gl/unix/authors.txt
diff --git a/basis/opengl/gl/unix/tags.txt b/basis/opengl/gl/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/opengl/gl/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/opengl/gl/unix/unix.factor b/basis/opengl/gl/unix/unix.factor
similarity index 100%
rename from extra/opengl/gl/unix/unix.factor
rename to basis/opengl/gl/unix/unix.factor
diff --git a/extra/opengl/gl/windows/authors.txt b/basis/opengl/gl/windows/authors.txt
similarity index 100%
rename from extra/opengl/gl/windows/authors.txt
rename to basis/opengl/gl/windows/authors.txt
diff --git a/basis/opengl/gl/windows/tags.txt b/basis/opengl/gl/windows/tags.txt
new file mode 100644
index 0000000000..02ec70f741
--- /dev/null
+++ b/basis/opengl/gl/windows/tags.txt
@@ -0,0 +1,2 @@
+unportable
+windows
diff --git a/extra/opengl/gl/windows/windows.factor b/basis/opengl/gl/windows/windows.factor
similarity index 100%
rename from extra/opengl/gl/windows/windows.factor
rename to basis/opengl/gl/windows/windows.factor
diff --git a/extra/io/unix/authors.txt b/basis/opengl/glu/authors.txt
similarity index 100%
rename from extra/io/unix/authors.txt
rename to basis/opengl/glu/authors.txt
diff --git a/extra/opengl/glu/glu.factor b/basis/opengl/glu/glu.factor
similarity index 100%
rename from extra/opengl/glu/glu.factor
rename to basis/opengl/glu/glu.factor
diff --git a/extra/opengl/glu/summary.txt b/basis/opengl/glu/summary.txt
similarity index 100%
rename from extra/opengl/glu/summary.txt
rename to basis/opengl/glu/summary.txt
diff --git a/extra/freetype/tags.txt b/basis/opengl/glu/tags.txt
similarity index 100%
rename from extra/freetype/tags.txt
rename to basis/opengl/glu/tags.txt
diff --git a/extra/opengl/opengl-docs.factor b/basis/opengl/opengl-docs.factor
similarity index 89%
rename from extra/opengl/opengl-docs.factor
rename to basis/opengl/opengl-docs.factor
index b168f4cad1..87981789a7 100644
--- a/extra/opengl/opengl-docs.factor
+++ b/basis/opengl/opengl-docs.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.syntax io kernel math quotations
-opengl.gl assocs vocabs.loader sequences ;
+opengl.gl assocs vocabs.loader sequences accessors ;
 IN: opengl
 
 HELP: gl-color
@@ -91,17 +91,17 @@ HELP: do-attribs
 HELP: sprite
 { $class-description "A sprite is an OpenGL texture together with a display list which renders a textured quad. Sprites are used to draw text in the UI. Sprites have the following slots:"
     { $list
-        { { $link sprite-dlist } " - an OpenGL display list ID" }
-        { { $link sprite-texture } " - an OpenGL texture ID" }
-        { { $link sprite-loc } " - top-left corner of the sprite" }
-        { { $link sprite-dim } " - dimensions of the sprite" }
-        { { $link sprite-dim2 } " - dimensions of the sprite, rounded up to the nearest powers of two" }
+        { { $snippet "dlist" } " - an OpenGL display list ID" }
+        { { $snippet "texture" } " - an OpenGL texture ID" }
+        { { $snippet "loc" } " - top-left corner of the sprite" }
+        { { $snippet "dim" } " - dimensions of the sprite" }
+        { { $snippet "dim2" } " - dimensions of the sprite, rounded up to the nearest powers of two" }
     }
 } ;
 
 HELP: gray-texture
 { $values { "sprite" sprite } { "pixmap" "an alien or byte array" } { "id" "an OpenGL texture ID" } }
-{ $description "Creates a new OpenGL texture from a 1 byte per pixel image whose dimensions are equal to " { $link sprite-dim2 } "." } ;
+{ $description "Creates a new OpenGL texture from a 1 byte per pixel image whose dimensions are equal to " { $snippet "dim2" } "." } ;
 
 HELP: gen-dlist
 { $values { "id" integer } }
@@ -123,9 +123,12 @@ HELP: with-translation
 { $values { "loc" "a pair of integers" } { "quot" quotation } }
 { $description "Calls the quotation with a translation by " { $snippet "loc" } " pixels applied to the current " { $link GL_MODELVIEW } " matrix, restoring the matrix when the quotation is done." } ;
 
+
 ARTICLE: "gl-utilities" "OpenGL utility words"
-"In addition to the full OpenGL API, the " { $vocab-link "opengl" } " vocabulary includes some utility words to give OpenGL a more Factor-like feel."
+"The " { $vocab-link "opengl" } " vocabulary implements some utility words to give OpenGL a more Factor-like feel."
 $nl
+"The " { $vocab-link "opengl.gl" } " and " { $vocab-link "opengl.glu" } " vocabularies have the actual OpenGL bindings."
+{ $subsection "opengl-low-level" }
 "Wrappers:"
 { $subsection gl-color }
 { $subsection gl-vertex }
diff --git a/extra/opengl/opengl.factor b/basis/opengl/opengl.factor
similarity index 80%
rename from extra/opengl/opengl.factor
rename to basis/opengl/opengl.factor
index 79470131f3..2d1b644050 100755
--- a/extra/opengl/opengl.factor
+++ b/basis/opengl/opengl.factor
@@ -2,15 +2,21 @@
 ! Portions copyright (C) 2007 Eduardo Cavazos.
 ! Portions copyright (C) 2008 Joe Groff.
 ! See http://factorcode.org/license.txt for BSD license.
+
 USING: alien alien.c-types continuations kernel libc math macros
-namespaces math.vectors math.constants math.functions
-math.parser opengl.gl opengl.glu combinators arrays sequences
-splitting words byte-arrays assocs combinators.lib ;
+       namespaces math.vectors math.constants math.functions
+       math.parser opengl.gl opengl.glu combinators arrays sequences
+       splitting words byte-arrays assocs colors accessors ;
+
 IN: opengl
 
-: coordinates [ first2 ] bi@ ;
+: coordinates ( point1 point2 -- x1 y2 x2 y2 )
+    [ first2 ] bi@ ;
 
-: fix-coordinates [ first2 [ >fixnum ] bi@ ] bi@ ;
+: fix-coordinates ( point1 point2 -- x1 y2 x2 y2 )
+    [ first2 [ >fixnum ] bi@ ] bi@ ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : gl-color ( color -- ) first4 glColor4d ; inline
 
@@ -20,6 +26,14 @@ IN: opengl
 : gl-clear ( color -- )
     gl-clear-color GL_COLOR_BUFFER_BIT glClear ;
 
+: color>raw ( object -- r g b a )
+  >rgba { [ red>> ] [ green>> ] [ blue>> ] [ alpha>> ] } cleave ;
+
+: set-color       ( object -- ) color>raw glColor4d ;
+: set-clear-color ( object -- ) color>raw glClearColor ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
 : gl-error ( -- )
     glGetError dup zero? [
         "GL error: " over gluErrorString append throw
@@ -73,7 +87,8 @@ MACRO: all-enabled-client-state ( seq quot -- )
     >r { 0.5 0.5 } v+ r> { 0.5 0.5 } v- gl-fill-rect
     GL_FRONT_AND_BACK GL_FILL glPolygonMode ;
 
-: (gl-poly) [ [ gl-vertex ] each ] do-state ;
+: (gl-poly) ( points state -- )
+    [ [ gl-vertex ] each ] do-state ;
 
 : gl-fill-poly ( points -- )
     dup length 2 > GL_POLYGON GL_LINES ? (gl-poly) ;
@@ -81,13 +96,17 @@ MACRO: all-enabled-client-state ( seq quot -- )
 : gl-poly ( points -- )
     GL_LINE_LOOP (gl-poly) ;
 
-: circle-steps dup length v/n 2 pi * v*n ;
+: circle-steps ( steps -- angles )
+    dup length v/n 2 pi * v*n ;
 
-: unit-circle dup [ sin ] map swap [ cos ] map ;
+: unit-circle ( angles -- points1 points2 )
+    [ [ sin ] map ] [ [ cos ] map ] bi ;
 
-: adjust-points [ [ 1 + 0.5 * ] map ] bi@ ;
+: adjust-points ( points1 points2 -- points1' points2' )
+    [ [ 1 + 0.5 * ] map ] bi@ ;
 
-: scale-points zip [ v* ] with map [ v+ ] with map ;
+: scale-points ( loc dim points1 points2 -- points )
+    zip [ v* ] with map [ v+ ] with map ;
 
 : circle-points ( loc dim steps -- points )
     circle-steps unit-circle adjust-points scale-points ;
@@ -105,7 +124,7 @@ MACRO: all-enabled-client-state ( seq quot -- )
     GL_QUAD_STRIP [
         swap >r prepare-gradient r>
         [ length dup 1- v/n ] keep [
-            >r >r 2dup r> r> gl-color v*n
+            >r >r 2dup r> r> set-color v*n
             dup gl-vertex v+ gl-vertex
         ] 2each 2drop
     ] do-state ;
@@ -161,9 +180,9 @@ TUPLE: sprite loc dim dim2 dlist texture ;
 : <sprite> ( loc dim dim2 -- sprite )
     f f sprite boa ;
 
-: sprite-size2 sprite-dim2 first2 ;
+: sprite-size2 ( sprite -- w h ) dim2>> first2 ;
 
-: sprite-width sprite-dim first ;
+: sprite-width ( sprite -- w ) dim>> first ;
 
 : gray-texture ( sprite pixmap -- id )
     gen-texture [
@@ -188,6 +207,8 @@ TUPLE: sprite loc dim dim2 dlist texture ;
 
 : gl-translate ( point -- ) first2 0.0 glTranslated ;
 
+<PRIVATE
+
 : top-left drop 0 0 glTexCoord2i 0.0 0.0 glVertex2d ; inline
 
 : top-right 1 0 glTexCoord2i first 0.0 glVertex2d ; inline
@@ -196,14 +217,16 @@ TUPLE: sprite loc dim dim2 dlist texture ;
 
 : bottom-right 1 1 glTexCoord2i gl-vertex ; inline
 
+PRIVATE>
+
 : four-sides ( dim -- )
     dup top-left dup top-right dup bottom-right bottom-left ;
 
 : draw-sprite ( sprite -- )
-    dup sprite-loc gl-translate
-    GL_TEXTURE_2D over sprite-texture glBindTexture
+    dup loc>> gl-translate
+    GL_TEXTURE_2D over texture>> glBindTexture
     init-texture
-    GL_QUADS [ sprite-dim2 four-sides ] do-state
+    GL_QUADS [ dim2>> four-sides ] do-state
     GL_TEXTURE_2D 0 glBindTexture ;
 
 : rect-vertices ( lower-left upper-right -- )
@@ -220,14 +243,14 @@ TUPLE: sprite loc dim dim2 dlist texture ;
     ] do-matrix ;
 
 : init-sprite ( texture sprite -- )
-    [ set-sprite-texture ] keep
-    [ make-sprite-dlist ] keep set-sprite-dlist ;
+    swap >>texture
+    dup make-sprite-dlist >>dlist drop ;
 
 : delete-dlist ( id -- ) 1 glDeleteLists ;
 
 : free-sprite ( sprite -- )
-    dup sprite-dlist delete-dlist
-    sprite-texture delete-texture ;
+    [ dlist>> delete-dlist ]
+    [ texture>> delete-texture ] bi ;
 
 : free-sprites ( sprites -- )
     [ nip [ free-sprite ] when* ] assoc-each ;
diff --git a/extra/opengl/summary.txt b/basis/opengl/summary.txt
similarity index 100%
rename from extra/opengl/summary.txt
rename to basis/opengl/summary.txt
diff --git a/extra/math/libm/tags.txt b/basis/opengl/tags.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/math/libm/tags.txt
rename to basis/opengl/tags.txt
diff --git a/extra/openssl/authors.txt b/basis/openssl/authors.txt
similarity index 100%
rename from extra/openssl/authors.txt
rename to basis/openssl/authors.txt
diff --git a/extra/openssl/cacert.pem b/basis/openssl/cacert.pem
similarity index 100%
rename from extra/openssl/cacert.pem
rename to basis/openssl/cacert.pem
diff --git a/extra/openssl/libcrypto/libcrypto.factor b/basis/openssl/libcrypto/libcrypto.factor
similarity index 100%
rename from extra/openssl/libcrypto/libcrypto.factor
rename to basis/openssl/libcrypto/libcrypto.factor
diff --git a/extra/openssl/libssl/libssl.factor b/basis/openssl/libssl/libssl.factor
similarity index 55%
rename from extra/openssl/libssl/libssl.factor
rename to basis/openssl/libssl/libssl.factor
index 3218d67b5c..f1dc21f993 100755
--- a/extra/openssl/libssl/libssl.factor
+++ b/basis/openssl/libssl/libssl.factor
@@ -1,12 +1,8 @@
 ! Copyright (C) 2007 Elie CHAFTARI
+! Portions copyright (C) 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-!
-! Tested with OpenSSL 0.9.8a_0 on Mac OS X 10.4.9 PowerPC
-!
-! export LD_LIBRARY_PATH=/opt/local/lib
-
 USING: alien alien.syntax combinators kernel system namespaces
-assocs parser sequences words quotations ;
+assocs parser lexer sequences words quotations math.bitwise ;
 
 IN: openssl.libssl
 
@@ -24,11 +20,47 @@ IN: openssl.libssl
 : SSL_FILETYPE_ASN1  X509_FILETYPE_ASN1 ; inline
 : SSL_FILETYPE_PEM   X509_FILETYPE_PEM ; inline
 
-: SSL_CTRL_NEED_TMP_RSA      1 ; inline
-: SSL_CTRL_SET_TMP_RSA       2 ; inline
-: SSL_CTRL_SET_TMP_DH        3 ; inline
-: SSL_CTRL_SET_TMP_RSA_CB    4 ; inline
-: SSL_CTRL_SET_TMP_DH_CB     5 ; inline
+: SSL_CTRL_NEED_TMP_RSA             1 ; inline
+: SSL_CTRL_SET_TMP_RSA              2 ; inline
+: SSL_CTRL_SET_TMP_DH               3 ; inline
+: SSL_CTRL_SET_TMP_RSA_CB           4 ; inline
+: SSL_CTRL_SET_TMP_DH_CB            5 ; inline
+
+: SSL_CTRL_GET_SESSION_REUSED       6 ; inline
+: SSL_CTRL_GET_CLIENT_CERT_REQUEST  7 ; inline
+: SSL_CTRL_GET_NUM_RENEGOTIATIONS   8 ; inline
+: SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS 9 ; inline
+: SSL_CTRL_GET_TOTAL_RENEGOTIATIONS 10 ; inline
+: SSL_CTRL_GET_FLAGS                11 ; inline
+: SSL_CTRL_EXTRA_CHAIN_CERT         12 ; inline
+
+: SSL_CTRL_SET_MSG_CALLBACK         13 ; inline
+: SSL_CTRL_SET_MSG_CALLBACK_ARG     14 ; inline
+
+: SSL_CTRL_SESS_NUMBER              20 ; inline
+: SSL_CTRL_SESS_CONNECT             21 ; inline
+: SSL_CTRL_SESS_CONNECT_GOOD        22 ; inline
+: SSL_CTRL_SESS_CONNECT_RENEGOTIATE 23 ; inline
+: SSL_CTRL_SESS_ACCEPT              24 ; inline
+: SSL_CTRL_SESS_ACCEPT_GOOD         25 ; inline
+: SSL_CTRL_SESS_ACCEPT_RENEGOTIATE  26 ; inline
+: SSL_CTRL_SESS_HIT                 27 ; inline
+: SSL_CTRL_SESS_CB_HIT              28 ; inline
+: SSL_CTRL_SESS_MISSES              29 ; inline
+: SSL_CTRL_SESS_TIMEOUTS            30 ; inline
+: SSL_CTRL_SESS_CACHE_FULL          31 ; inline
+: SSL_CTRL_OPTIONS                  32 ; inline
+: SSL_CTRL_MODE                     33 ; inline
+
+: SSL_CTRL_GET_READ_AHEAD           40 ; inline
+: SSL_CTRL_SET_READ_AHEAD           41 ; inline
+: SSL_CTRL_SET_SESS_CACHE_SIZE      42 ; inline
+: SSL_CTRL_GET_SESS_CACHE_SIZE      43 ; inline
+: SSL_CTRL_SET_SESS_CACHE_MODE      44 ; inline
+: SSL_CTRL_GET_SESS_CACHE_MODE      45 ; inline
+
+: SSL_CTRL_GET_MAX_CERT_LIST        50 ; inline
+: SSL_CTRL_SET_MAX_CERT_LIST        51 ; inline
 
 : SSL_ERROR_NONE             0 ; inline
 : SSL_ERROR_SSL              1 ; inline
@@ -55,8 +87,9 @@ IN: openssl.libssl
     } ;
 
 TYPEDEF: void* ssl-method
-TYPEDEF: void* ssl-ctx
-TYPEDEF: void* ssl-pointer
+TYPEDEF: void* SSL_CTX*
+TYPEDEF: void* SSL_SESSION*
+TYPEDEF: void* SSL*
 
 LIBRARY: libssl
 
@@ -64,7 +97,7 @@ LIBRARY: libssl
 ! ssl.h
 ! ===============================================
 
-FUNCTION: char* SSL_get_version ( ssl-pointer ssl ) ;
+FUNCTION: char* SSL_get_version ( SSL* ssl ) ;
 
 ! Maps OpenSSL errors to strings
 FUNCTION: void SSL_load_error_strings (  ) ;
@@ -94,42 +127,50 @@ FUNCTION: ssl-method TLSv1_server_method (  ) ;
 FUNCTION: ssl-method TLSv1_method (  ) ;
 
 ! Creates the context
-FUNCTION: ssl-ctx SSL_CTX_new ( ssl-method method ) ;
+FUNCTION: SSL_CTX* SSL_CTX_new ( ssl-method method ) ;
 
 ! Load the certificates and private keys into the SSL_CTX
-FUNCTION: int SSL_CTX_use_certificate_chain_file ( ssl-ctx ctx,
+FUNCTION: int SSL_CTX_use_certificate_chain_file ( SSL_CTX* ctx,
                                                    char* file ) ; ! PEM type
 
-FUNCTION: ssl-pointer SSL_new ( ssl-ctx ctx ) ;
+FUNCTION: SSL* SSL_new ( SSL_CTX* ctx ) ;
 
-FUNCTION: int SSL_set_fd ( ssl-pointer ssl, int fd ) ;
+FUNCTION: int SSL_set_fd ( SSL* ssl, int fd ) ;
 
-FUNCTION: void SSL_set_bio ( ssl-pointer ssl, void* rbio, void* wbio ) ;
+FUNCTION: void SSL_set_bio ( SSL* ssl, void* rbio, void* wbio ) ;
 
-FUNCTION: int SSL_get_error ( ssl-pointer ssl, int ret ) ;
+FUNCTION: int SSL_set_session ( SSL* to, SSL_SESSION* session ) ;
 
-FUNCTION: void SSL_set_connect_state ( ssl-pointer ssl ) ;
+FUNCTION: int SSL_get_error ( SSL* ssl, int ret ) ;
 
-FUNCTION: void SSL_set_accept_state ( ssl-pointer ssl ) ;
+FUNCTION: void SSL_set_connect_state ( SSL* ssl ) ;
 
-FUNCTION: int SSL_connect ( ssl-pointer ssl ) ;
+FUNCTION: void SSL_set_accept_state ( SSL* ssl ) ;
 
-FUNCTION: int SSL_accept ( ssl-pointer ssl ) ;
+FUNCTION: int SSL_connect ( SSL* ssl ) ;
 
-FUNCTION: int SSL_write ( ssl-pointer ssl, void* buf, int num ) ;
+FUNCTION: int SSL_accept ( SSL* ssl ) ;
 
-FUNCTION: int SSL_read ( ssl-pointer ssl, void* buf, int num ) ;
+FUNCTION: int SSL_write ( SSL* ssl, void* buf, int num ) ;
 
-FUNCTION: int SSL_shutdown ( ssl-pointer ssl ) ;
+FUNCTION: int SSL_read ( SSL* ssl, void* buf, int num ) ;
+
+FUNCTION: int SSL_shutdown ( SSL* ssl ) ;
 
 : SSL_SENT_SHUTDOWN 1 ;
 : SSL_RECEIVED_SHUTDOWN 2 ;
 
-FUNCTION: int SSL_get_shutdown ( ssl-pointer ssl ) ;
+FUNCTION: int SSL_get_shutdown ( SSL* ssl ) ;
 
-FUNCTION: void SSL_free ( ssl-pointer ssl ) ;
+FUNCTION: int SSL_CTX_set_session_id_context ( SSL_CTX* ctx, char* sid_ctx, uint len ) ;
 
-FUNCTION: int SSL_want ( ssl-pointer ssl ) ;
+FUNCTION: SSL_SESSION* SSL_get1_session ( SSL* ssl ) ;
+
+FUNCTION: void SSL_free ( SSL* ssl ) ;
+
+FUNCTION: void SSL_SESSION_free ( SSL_SESSION* ses ) ;
+
+FUNCTION: int SSL_want ( SSL* ssl ) ;
 
 : SSL_NOTHING 1 ; inline
 : SSL_WRITING 2 ; inline
@@ -140,55 +181,55 @@ FUNCTION: long SSL_get_verify_result ( SSL* ssl ) ;
 
 FUNCTION: X509* SSL_get_peer_certificate ( SSL* s ) ;
 
-FUNCTION: void SSL_CTX_free ( ssl-ctx ctx ) ;
+FUNCTION: void SSL_CTX_free ( SSL_CTX* ctx ) ;
 
 FUNCTION: void RAND_seed ( void* buf, int num ) ;
 
-FUNCTION: int SSL_set_cipher_list ( ssl-pointer ssl, char* str ) ;
+FUNCTION: int SSL_set_cipher_list ( SSL* ssl, char* str ) ;
 
-FUNCTION: int SSL_use_RSAPrivateKey_file ( ssl-pointer ssl, char* str ) ;
+FUNCTION: int SSL_use_RSAPrivateKey_file ( SSL* ssl, char* str ) ;
 
-FUNCTION: int SSL_CTX_use_RSAPrivateKey_file ( ssl-ctx ctx, int type ) ;
+FUNCTION: int SSL_CTX_use_RSAPrivateKey_file ( SSL_CTX* ctx, int type ) ;
 
-FUNCTION: int SSL_use_certificate_file ( ssl-pointer ssl,
+FUNCTION: int SSL_use_certificate_file ( SSL* ssl,
                                          char* str, int type ) ;
 
-FUNCTION: int SSL_CTX_load_verify_locations ( ssl-ctx ctx, char* CAfile,
+FUNCTION: int SSL_CTX_load_verify_locations ( SSL_CTX* ctx, char* CAfile,
                                               char* CApath ) ;
 
-FUNCTION: int SSL_CTX_set_default_verify_paths ( ssl-ctx ctx ) ;
+FUNCTION: int SSL_CTX_set_default_verify_paths ( SSL_CTX* ctx ) ;
 
 : SSL_VERIFY_NONE 0 ; inline
 : SSL_VERIFY_PEER 1 ; inline
 : SSL_VERIFY_FAIL_IF_NO_PEER_CERT 2 ; inline
 : SSL_VERIFY_CLIENT_ONCE 4 ; inline
 
-FUNCTION: void SSL_CTX_set_verify ( ssl-ctx ctx, int mode, void* callback ) ;
+FUNCTION: void SSL_CTX_set_verify ( SSL_CTX* ctx, int mode, void* callback ) ;
 
-FUNCTION: void SSL_CTX_set_client_CA_list ( ssl-ctx ctx, ssl-pointer list ) ;
+FUNCTION: void SSL_CTX_set_client_CA_list ( SSL_CTX* ctx, SSL* list ) ;
 
-FUNCTION: ssl-pointer SSL_load_client_CA_file ( char* file ) ;
+FUNCTION: SSL* SSL_load_client_CA_file ( char* file ) ;
 
 ! Used to manipulate settings of the SSL_CTX and SSL objects.
 ! This function should never be called directly
-FUNCTION: long SSL_CTX_ctrl ( ssl-ctx ctx, int cmd, long larg, void* parg ) ;
+FUNCTION: long SSL_CTX_ctrl ( SSL_CTX* ctx, int cmd, long larg, void* parg ) ;
 
-FUNCTION: void SSL_CTX_set_default_passwd_cb ( ssl-ctx ctx, void* cb ) ;
+FUNCTION: void SSL_CTX_set_default_passwd_cb ( SSL_CTX* ctx, void* cb ) ;
 
-FUNCTION: void SSL_CTX_set_default_passwd_cb_userdata ( ssl-ctx ctx,
+FUNCTION: void SSL_CTX_set_default_passwd_cb_userdata ( SSL_CTX* ctx,
                                                         void* u ) ;
 
-FUNCTION: int SSL_CTX_use_PrivateKey_file ( ssl-ctx ctx, char* file,
+FUNCTION: int SSL_CTX_use_PrivateKey_file ( SSL_CTX* ctx, char* file,
                                             int type ) ;
 
-! Sets the maximum depth for the allowed ctx certificate chain verification 
-FUNCTION: void SSL_CTX_set_verify_depth ( ssl-ctx ctx, int depth ) ;
+! Sets the maximum depth for the allowed ctx certificate chain verification
+FUNCTION: void SSL_CTX_set_verify_depth ( SSL_CTX* ctx, int depth ) ;
 
 ! Sets DH parameters to be used to be dh.
 ! The key is inherited by all ssl objects created from ctx
-FUNCTION: void SSL_CTX_set_tmp_dh_callback ( ssl-ctx ctx, void* dh ) ;
+FUNCTION: void SSL_CTX_set_tmp_dh_callback ( SSL_CTX* ctx, void* dh ) ;
 
-FUNCTION: void SSL_CTX_set_tmp_rsa_callback ( ssl-ctx ctx, void* rsa ) ;
+FUNCTION: void SSL_CTX_set_tmp_rsa_callback ( SSL_CTX* ctx, void* rsa ) ;
 
 FUNCTION: void* BIO_f_ssl (  ) ;
 
@@ -198,6 +239,23 @@ FUNCTION: void* BIO_f_ssl (  ) ;
 : SSL_CTX_set_tmp_dh ( ctx dh -- n )
     >r SSL_CTRL_SET_TMP_DH 0 r> SSL_CTX_ctrl ;
 
+: SSL_CTX_set_session_cache_mode ( ctx mode -- n )
+    >r SSL_CTRL_SET_SESS_CACHE_MODE r> f SSL_CTX_ctrl ;
+
+: SSL_SESS_CACHE_OFF                      HEX: 0000 ; inline
+: SSL_SESS_CACHE_CLIENT                   HEX: 0001 ; inline
+: SSL_SESS_CACHE_SERVER                   HEX: 0002 ; inline
+
+: SSL_SESS_CACHE_BOTH ( -- n )
+    { SSL_SESS_CACHE_CLIENT SSL_SESS_CACHE_SERVER } flags ; inline
+
+: SSL_SESS_CACHE_NO_AUTO_CLEAR            HEX: 0080 ; inline
+: SSL_SESS_CACHE_NO_INTERNAL_LOOKUP       HEX: 0100 ; inline
+: SSL_SESS_CACHE_NO_INTERNAL_STORE        HEX: 0200 ; inline
+
+: SSL_SESS_CACHE_NO_INTERNAL ( -- n )
+    { SSL_SESS_CACHE_NO_INTERNAL_LOOKUP SSL_SESS_CACHE_NO_INTERNAL_STORE } flags ; inline
+
 ! ===============================================
 ! x509.h
 ! ===============================================
diff --git a/extra/openssl/openssl-tests.factor b/basis/openssl/openssl-tests.factor
similarity index 56%
rename from extra/openssl/openssl-tests.factor
rename to basis/openssl/openssl-tests.factor
index 5990153073..93af70b3e0 100755
--- a/extra/openssl/openssl-tests.factor
+++ b/basis/openssl/openssl-tests.factor
@@ -4,17 +4,17 @@ openssl namespaces accessors tools.test continuations kernel ;
 openssl secure-socket-backend [
     [ ] [
         <secure-config>
-            "resource:extra/openssl/test/server.pem" >>key-file
-            "resource:extra/openssl/test/root.pem" >>ca-file
-            "resource:extra/openssl/test/dh1024.pem" >>dh-file
+            "resource:basis/openssl/test/server.pem" >>key-file
+            "resource:basis/openssl/test/root.pem" >>ca-file
+            "resource:basis/openssl/test/dh1024.pem" >>dh-file
             "password" >>password
         [ ] with-secure-context
     ] unit-test
 
     [
         <secure-config>
-            "resource:extra/openssl/test/server.pem" >>key-file
-            "resource:extra/openssl/test/root.pem" >>ca-file
+            "resource:basis/openssl/test/server.pem" >>key-file
+            "resource:basis/openssl/test/root.pem" >>ca-file
             "wrong password" >>password
         [ ] with-secure-context
     ] must-fail
diff --git a/extra/openssl/openssl.factor b/basis/openssl/openssl.factor
similarity index 83%
rename from extra/openssl/openssl.factor
rename to basis/openssl/openssl.factor
index 03343820db..284e42cd1b 100755
--- a/extra/openssl/openssl.factor
+++ b/basis/openssl/openssl.factor
@@ -2,8 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors byte-arrays kernel debugger sequences namespaces math
 math.order combinators init alien alien.c-types alien.strings libc
-continuations destructors debugger inspector
-locals unicode.case
+continuations destructors debugger summary splitting assocs
+random math.parser locals unicode.case
 openssl.libcrypto openssl.libssl
 io.backend io.ports io.files io.encodings.8-bit io.sockets.secure
 io.timeouts ;
@@ -48,7 +48,13 @@ SYMBOL: ssl-initialized?
 
 [ f ssl-initialized? set-global ] "openssl" add-init-hook
 
-TUPLE: openssl-context < secure-context aliens ;
+TUPLE: openssl-context < secure-context aliens sessions ;
+
+: set-session-cache ( ctx -- )
+    handle>>
+    [ SSL_SESS_CACHE_BOTH SSL_CTX_set_session_cache_mode ssl-error ]
+    [ 32 random-bits >hex dup length SSL_CTX_set_session_id_context ssl-error ]
+    bi ;
 
 : load-certificate-chain ( ctx -- )
     dup config>> key-file>> [
@@ -105,7 +111,7 @@ TUPLE: openssl-context < secure-context aliens ;
 
 TUPLE: bio handle disposed ;
 
-: <bio> f bio boa ;
+: <bio> ( handle -- bio ) f bio boa ;
 
 M: bio dispose* handle>> BIO_free ssl-error ;
 
@@ -121,7 +127,7 @@ M: bio dispose* handle>> BIO_free ssl-error ;
 
 TUPLE: rsa handle disposed ;
 
-: <rsa> f rsa boa ;
+: <rsa> ( handle -- rsa ) f rsa boa ;
 
 M: rsa dispose* handle>> RSA_free ;
 
@@ -133,12 +139,20 @@ M: rsa dispose* handle>> RSA_free ;
     ] bi
     SSL_CTX_set_tmp_rsa ssl-error ;
 
+: <openssl-context> ( config ctx -- context )
+    openssl-context new
+        swap >>handle
+        swap >>config
+        V{ } clone >>aliens
+        H{ } clone >>sessions ;
+
 M: openssl <secure-context> ( config -- context )
     maybe-init-ssl
     [
         dup method>> ssl-method SSL_CTX_new
-        dup ssl-error f V{ } clone openssl-context boa |dispose
+        dup ssl-error <openssl-context> |dispose
         {
+            [ set-session-cache ]
             [ load-certificate-chain ]
             [ set-default-password ]
             [ use-private-key-file ]
@@ -152,8 +166,9 @@ M: openssl <secure-context> ( config -- context )
 
 M: openssl-context dispose*
     [ aliens>> [ free ] each ]
+    [ sessions>> values [ SSL_SESSION_free ] each ]
     [ handle>> SSL_CTX_free ]
-    bi ;
+    tri ;
 
 TUPLE: ssl-handle file handle connected disposed ;
 
@@ -188,8 +203,12 @@ M: ssl-handle dispose*
     [ 256 X509_NAME_get_text_by_NID ] keep
     swap -1 = [ drop f ] [ latin1 alien>string ] if ;
 
+: common-names-match? ( expected actual -- ? )
+    [ >lower ] bi@ "*." ?head [ tail? ] [ = ] if ;
+
 : check-common-name ( host ssl-handle -- )
-    SSL_get_peer_certificate common-name 2dup [ >lower ] bi@ =
+    SSL_get_peer_certificate common-name
+    2dup common-names-match?
     [ 2drop ] [ common-name-verify-error ] if ;
 
 M: openssl check-certificate ( host ssl -- )
@@ -200,4 +219,11 @@ M: openssl check-certificate ( host ssl -- )
         2bi
     ] [ 2drop ] if ;
 
+: get-session ( addrspec -- session/f )
+    current-secure-context sessions>> at
+    dup expired? [ drop f ] when ;
+
+: save-session ( session addrspec -- )
+    current-secure-context sessions>> set-at ;
+
 openssl secure-socket-backend set-global
diff --git a/extra/openssl/summary.txt b/basis/openssl/summary.txt
similarity index 100%
rename from extra/openssl/summary.txt
rename to basis/openssl/summary.txt
diff --git a/extra/openssl/tags.txt b/basis/openssl/tags.txt
similarity index 100%
rename from extra/openssl/tags.txt
rename to basis/openssl/tags.txt
diff --git a/extra/openssl/test/dh1024.pem b/basis/openssl/test/dh1024.pem
similarity index 100%
rename from extra/openssl/test/dh1024.pem
rename to basis/openssl/test/dh1024.pem
diff --git a/extra/openssl/test/root.pem b/basis/openssl/test/root.pem
similarity index 100%
rename from extra/openssl/test/root.pem
rename to basis/openssl/test/root.pem
diff --git a/extra/openssl/test/server.pem b/basis/openssl/test/server.pem
similarity index 100%
rename from extra/openssl/test/server.pem
rename to basis/openssl/test/server.pem
diff --git a/extra/json/reader/authors.txt b/basis/peg/authors.txt
similarity index 100%
rename from extra/json/reader/authors.txt
rename to basis/peg/authors.txt
diff --git a/extra/json/writer/authors.txt b/basis/peg/ebnf/authors.txt
similarity index 100%
rename from extra/json/writer/authors.txt
rename to basis/peg/ebnf/authors.txt
diff --git a/basis/peg/ebnf/ebnf-tests.factor b/basis/peg/ebnf/ebnf-tests.factor
new file mode 100644
index 0000000000..a6d3cf0b21
--- /dev/null
+++ b/basis/peg/ebnf/ebnf-tests.factor
@@ -0,0 +1,522 @@
+! Copyright (C) 2007 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+!
+USING: kernel tools.test peg peg.ebnf words math math.parser 
+       sequences accessors peg.parsers parser namespaces arrays 
+       strings eval ;
+IN: peg.ebnf.tests
+
+{ T{ ebnf-non-terminal f "abc" } } [
+  "abc" 'non-terminal' parse 
+] unit-test
+
+{ T{ ebnf-terminal f "55" } } [
+  "'55'" 'terminal' parse 
+] unit-test
+
+{
+  T{ ebnf-rule f 
+     "digit"
+     T{ ebnf-choice f
+        V{ T{ ebnf-terminal f "1" } T{ ebnf-terminal f "2" } }
+     }
+  } 
+} [
+  "digit = '1' | '2'" 'rule' parse
+] unit-test
+
+{
+  T{ ebnf-rule f 
+     "digit" 
+     T{ ebnf-sequence f
+        V{ T{ ebnf-terminal f "1" } T{ ebnf-terminal f "2" } }
+     }
+  }   
+} [
+  "digit = '1' '2'" 'rule' parse
+] unit-test
+
+{
+  T{ ebnf-choice f
+     V{ 
+       T{ ebnf-sequence f
+          V{ T{ ebnf-non-terminal f "one" } T{ ebnf-non-terminal f "two" } }
+       }
+       T{ ebnf-non-terminal f "three" }
+     }
+  } 
+} [
+  "one two | three" 'choice' parse
+] unit-test
+
+{
+  T{ ebnf-sequence f
+     V{ 
+       T{ ebnf-non-terminal f "one" }
+       T{ ebnf-whitespace f
+         T{ ebnf-choice f
+            V{ T{ ebnf-non-terminal f "two" } T{ ebnf-non-terminal f "three" } }
+         }
+       }
+     }
+  } 
+} [
+  "one {two | three}" 'choice' parse
+] unit-test
+
+{
+  T{ ebnf-sequence f
+     V{ 
+       T{ ebnf-non-terminal f "one" }
+       T{ ebnf-repeat0 f
+          T{ ebnf-sequence f
+             V{
+                T{ ebnf-choice f
+                   V{ T{ ebnf-non-terminal f "two" } T{ ebnf-non-terminal f "three" } }
+                }
+                T{ ebnf-non-terminal f "four" }
+             }
+          }
+        }
+     }
+  } 
+} [
+  "one ((two | three) four)*" 'choice' parse
+] unit-test
+
+{
+  T{ ebnf-sequence f
+     V{ 
+         T{ ebnf-non-terminal f "one" } 
+         T{ ebnf-optional f T{ ebnf-non-terminal f "two" } }
+         T{ ebnf-non-terminal f "three" }
+     }
+  } 
+} [
+  "one ( two )? three" 'choice' parse
+] unit-test
+
+{ "foo" } [
+  "\"foo\"" 'identifier' parse
+] unit-test
+
+{ "foo" } [
+  "'foo'" 'identifier' parse
+] unit-test
+
+{ "foo" } [
+  "foo" 'non-terminal' parse symbol>>
+] unit-test
+
+{ "foo" } [
+  "foo]" 'non-terminal' parse symbol>>
+] unit-test
+
+{ V{ "a" "b" } } [
+  "ab" [EBNF foo='a' 'b' EBNF] 
+] unit-test
+
+{ V{ 1 "b" } } [
+  "ab" [EBNF foo=('a')[[ drop 1 ]] 'b' EBNF]
+] unit-test
+
+{ V{ 1 2 } } [
+  "ab" [EBNF foo=('a') [[ drop 1 ]] ('b') [[ drop 2 ]] EBNF]
+] unit-test
+
+{ CHAR: A } [
+  "A" [EBNF foo=[A-Z] EBNF]
+] unit-test
+
+{ CHAR: Z } [
+  "Z" [EBNF foo=[A-Z] EBNF]
+] unit-test
+
+[
+  "0" [EBNF foo=[A-Z] EBNF]  
+] must-fail
+
+{ CHAR: 0 } [
+  "0" [EBNF foo=[^A-Z] EBNF]
+] unit-test
+
+[
+  "A" [EBNF foo=[^A-Z] EBNF]  
+] must-fail
+
+[
+  "Z" [EBNF foo=[^A-Z] EBNF]  
+] must-fail
+
+{ V{ "1" "+" "foo" } } [
+  "1+1" [EBNF foo='1' '+' '1' [[ drop "foo" ]] EBNF]
+] unit-test
+
+{ "foo" } [
+  "1+1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] EBNF]
+] unit-test
+
+{ "foo" } [
+  "1+1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] | '1' '-' '1' => [[ drop "bar" ]] EBNF]
+] unit-test
+
+{ "bar" } [
+  "1-1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] | '1' '-' '1' => [[ drop "bar" ]] EBNF]
+] unit-test
+
+{ 6 } [
+  "4+2" [EBNF num=[0-9] => [[ digit> ]] foo=num:x '+' num:y => [[ x y + ]] EBNF]
+] unit-test
+
+{ 6 } [
+  "4+2" [EBNF foo=[0-9]:x '+' [0-9]:y => [[ x digit> y digit> + ]] EBNF]
+] unit-test
+
+{ 10 } [
+  { 1 2 3 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ x y + ]] | num EBNF]
+] unit-test
+
+[
+  { "a" 2 3 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ x y + ]] | num EBNF] 
+] must-fail
+
+{ 3 } [
+  { 1 2 "a" 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ x y + ]] | num EBNF]
+] unit-test
+
+[
+  "ab" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] 
+] must-fail
+
+{ V{ "a" " " "b" } } [
+  "a b" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF]
+] unit-test
+
+{ V{ "a" "\t" "b" } } [
+  "a\tb" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF]
+] unit-test
+
+{ V{ "a" "\n" "b" } } [
+  "a\nb" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF]
+] unit-test
+
+{ V{ "a" f "b" } } [
+  "ab" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF]
+] unit-test
+
+{ V{ "a" " " "b" } } [
+  "a b" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF]
+] unit-test
+
+
+{ V{ "a" "\t" "b" } } [
+  "a\tb" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF]
+] unit-test
+
+{ V{ "a" "\n" "b" } } [
+  "a\nb" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF]
+] unit-test
+
+{ V{ "a" "b" } } [
+  "ab" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF]
+] unit-test
+
+{ V{ "a" "b" } } [
+  "a\tb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF]
+] unit-test
+
+{ V{ "a" "b" } } [
+  "a\nb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF]
+] unit-test
+
+[
+  "axb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] 
+] must-fail
+
+{ V{ V{ 49 } "+" V{ 49 } } } [ 
+  #! Test direct left recursion. 
+  #! Using packrat, so first part of expr fails, causing 2nd choice to be used  
+  "1+1" [EBNF num=([0-9])+ expr=expr "+" num | num EBNF]
+] unit-test
+
+{ V{ V{ V{ 49 } "+" V{ 49 } } "+" V{ 49 } } } [ 
+  #! Test direct left recursion. 
+  #! Using packrat, so first part of expr fails, causing 2nd choice to be used  
+  "1+1+1" [EBNF num=([0-9])+ expr=expr "+" num | num EBNF]
+] unit-test
+
+{ V{ V{ V{ 49 } "+" V{ 49 } } "+" V{ 49 } } } [ 
+  #! Test indirect left recursion. 
+  #! Using packrat, so first part of expr fails, causing 2nd choice to be used  
+  "1+1+1" [EBNF num=([0-9])+ x=expr expr=x "+" num | num EBNF]
+] unit-test
+
+{ t } [
+  "abcd='9' | ('8'):x => [[ x ]]" 'ebnf' (parse) remaining>> empty?
+] unit-test
+
+EBNF: primary 
+Primary = PrimaryNoNewArray
+PrimaryNoNewArray =  ClassInstanceCreationExpression
+                   | MethodInvocation
+                   | FieldAccess
+                   | ArrayAccess
+                   | "this"
+ClassInstanceCreationExpression =  "new" ClassOrInterfaceType "(" ")"
+                                 | Primary "." "new" Identifier "(" ")"
+MethodInvocation =  Primary "." MethodName "(" ")"
+                  | MethodName "(" ")"
+FieldAccess =  Primary "." Identifier
+             | "super" "." Identifier  
+ArrayAccess =  Primary "[" Expression "]" 
+             | ExpressionName "[" Expression "]"
+ClassOrInterfaceType = ClassName | InterfaceTypeName
+ClassName = "C" | "D"
+InterfaceTypeName = "I" | "J"
+Identifier = "x" | "y" | ClassOrInterfaceType
+MethodName = "m" | "n"
+ExpressionName = Identifier
+Expression = "i" | "j"
+main = Primary
+;EBNF 
+
+{ "this" } [
+  "this" primary
+] unit-test
+
+{ V{ "this" "." "x" } } [
+  "this.x" primary
+] unit-test
+
+{ V{ V{ "this" "." "x" } "." "y" } } [
+  "this.x.y" primary
+] unit-test
+
+{ V{ V{ "this" "." "x" } "." "m" "(" ")" } } [
+  "this.x.m()" primary
+] unit-test
+
+{ V{ V{ V{ "x" "[" "i" "]" } "[" "j" "]" } "." "y" } } [
+  "x[i][j].y" primary
+] unit-test
+
+'ebnf' compile must-infer
+
+{ V{ V{ "a" "b" } "c" } } [
+  "abc" [EBNF a="a" "b" foo=(a "c") EBNF]
+] unit-test
+
+{ V{ V{ "a" "b" } "c" } } [
+  "abc" [EBNF a="a" "b" foo={a "c"} EBNF]
+] unit-test
+
+{ V{ V{ "a" "b" } "c" } } [
+  "abc" [EBNF a="a" "b" foo=a "c" EBNF]
+] unit-test
+
+[
+  "a bc" [EBNF a="a" "b" foo=(a "c") EBNF] 
+] must-fail
+
+[
+  "a bc" [EBNF a="a" "b" foo=a "c" EBNF] 
+] must-fail
+
+[
+  "a bc" [EBNF a="a" "b" foo={a "c"} EBNF]
+] must-fail
+
+[
+  "ab c" [EBNF a="a" "b" foo=a "c" EBNF] 
+] must-fail
+
+{ V{ V{ "a" "b" } "c" } } [
+  "ab c" [EBNF a="a" "b" foo={a "c"} EBNF]
+] unit-test
+
+[
+  "ab c" [EBNF a="a" "b" foo=(a "c") EBNF] 
+] must-fail
+
+[
+  "a b c" [EBNF a="a" "b" foo=a "c" EBNF] 
+] must-fail
+
+[
+  "a b c" [EBNF a="a" "b" foo=(a "c") EBNF] 
+] must-fail
+
+[
+  "a b c" [EBNF a="a" "b" foo={a "c"} EBNF] 
+] must-fail
+
+{ V{ V{ V{ "a" "b" } "c" } V{ V{ "a" "b" } "c" } } } [
+  "ab cab c" [EBNF a="a" "b" foo={a "c"}* EBNF]
+] unit-test
+
+{ V{ } } [
+  "ab cab c" [EBNF a="a" "b" foo=(a "c")* EBNF]
+] unit-test
+
+{ V{ V{ V{ "a" "b" } "c" } V{ V{ "a" "b" } "c" } } } [
+  "ab c ab c" [EBNF a="a" "b" foo={a "c"}* EBNF]
+] unit-test
+
+{ V{ } } [
+  "ab c ab c" [EBNF a="a" "b" foo=(a "c")* EBNF]
+] unit-test
+
+{ V{ "a" "a" "a" } } [
+  "aaa" [EBNF a=('a')* b=!('b') a:x => [[ x ]] EBNF]
+] unit-test
+
+{ t } [
+  "aaa" [EBNF a=('a')* b=!('b') a:x => [[ x ]] EBNF]
+  "aaa" [EBNF a=('a')* b=!('b') (a):x => [[ x ]] EBNF] =
+] unit-test
+
+{ V{ "a" "a" "a" } } [
+  "aaa" [EBNF a=('a')* b=a:x => [[ x ]] EBNF]
+] unit-test
+
+{ t } [
+  "aaa" [EBNF a=('a')* b=a:x => [[ x ]] EBNF]
+  "aaa" [EBNF a=('a')* b=(a):x => [[ x ]] EBNF] =
+] unit-test
+
+{ t } [
+  "number=(digit)+:n 'a'" 'ebnf' (parse) remaining>> length zero?
+] unit-test
+
+{ t } [
+  "number=(digit)+ 'a'" 'ebnf' (parse) remaining>> length zero?
+] unit-test
+
+{ t } [
+  "number=digit+ 'a'" 'ebnf' (parse) remaining>> length zero?
+] unit-test
+
+{ t } [
+  "number=digit+:n 'a'" 'ebnf' (parse) remaining>> length zero?
+] unit-test
+
+{ t } [
+  "foo=(name):n !(keyword) => [[ n ]]" 'rule' parse
+  "foo=name:n !(keyword) => [[ n ]]" 'rule' parse =
+] unit-test
+
+{ t } [
+  "foo=!(keyword) (name):n => [[ n ]]" 'rule' parse
+  "foo=!(keyword) name:n => [[ n ]]" 'rule' parse =
+] unit-test
+
+<<
+EBNF: parser1 
+foo='a' 
+;EBNF
+>>
+
+EBNF: parser2
+foo=<foreign parser1 foo> 'b'
+;EBNF
+
+EBNF: parser3
+foo=<foreign parser1> 'c'
+;EBNF
+
+EBNF: parser4
+foo=<foreign any-char> 'd'
+;EBNF
+
+{ "a" } [
+  "a" parser1
+] unit-test
+
+{ V{ "a" "b" } } [
+  "ab" parser2
+] unit-test
+
+{ V{ "a" "c" } } [
+  "ac" parser3
+] unit-test
+
+{ V{ CHAR: a "d" } } [
+  "ad" parser4
+] unit-test
+
+{ t } [
+ "USING: kernel peg.ebnf ; \"a\\n\" [EBNF foo='a' '\n'  => [[ drop \"\n\" ]] EBNF]" eval drop t
+] unit-test
+
+[
+  "USING: peg.ebnf ; <EBNF foo='a' foo='b' EBNF>" eval drop
+] must-fail
+
+{ t } [
+  #! Rule lookup occurs in a namespace. This causes an incorrect duplicate rule
+  #! if a var in a namespace is set. This unit test is to remind me to fix this.
+  [ "fail" "foo" set "foo='a'" 'ebnf' parse transform drop t ] with-scope
+] unit-test
+
+#! Tokenizer tests
+{ V{ "a" CHAR: b } } [
+  "ab" [EBNF tokenizer=default foo="a" . EBNF]
+] unit-test
+
+TUPLE: ast-number value ;
+
+EBNF: a-tokenizer 
+Letter            = [a-zA-Z]
+Digit             = [0-9]
+Digits            = Digit+
+SingleLineComment = "//" (!("\n") .)* "\n" => [[ ignore ]]
+MultiLineComment  = "/*" (!("*/") .)* "*/" => [[ ignore ]]
+Space             = " " | "\t" | "\r" | "\n" | SingleLineComment | MultiLineComment
+Spaces            = Space* => [[ ignore ]]
+Number            = Digits:ws '.' Digits:fs => [[ ws "." fs 3array concat >string string>number ast-number boa ]]
+                    | Digits => [[ >string string>number ast-number boa ]]  
+Special            =   "("   | ")"   | "{"   | "}"   | "["   | "]"   | ","   | ";"
+                     | "?"   | ":"   | "!==" | "~="  | "===" | "=="  | "="   | ">="
+                     | ">"   | "<="  | "<"   | "++"  | "+="  | "+"   | "--"  | "-="
+                     | "-"   | "*="  | "*"   | "/="  | "/"   | "%="  | "%"   | "&&="
+                     | "&&"  | "||=" | "||"  | "."   | "!"
+Tok                = Spaces (Number | Special )
+;EBNF
+
+{ V{ CHAR: 1 T{ ast-number f 23 } ";" CHAR: x } } [
+  "123;x" [EBNF bar = . 
+                tokenizer = <foreign a-tokenizer Tok>  foo=. 
+                tokenizer=default baz=. 
+                main = bar foo foo baz 
+          EBNF]
+] unit-test
+
+{ V{ CHAR: 5 "+" CHAR: 2 } } [
+  "5+2" [EBNF 
+          space=(" " | "\n") 
+          number=[0-9] 
+          operator=("*" | "+") 
+          spaces=space* => [[ ignore ]] 
+          tokenizer=spaces (number | operator) 
+          main= . . . 
+        EBNF]
+] unit-test
+
+{ V{ CHAR: 5 "+" CHAR: 2 } } [
+  "5 + 2" [EBNF 
+          space=(" " | "\n") 
+          number=[0-9] 
+          operator=("*" | "+") 
+          spaces=space* => [[ ignore ]] 
+          tokenizer=spaces (number | operator) 
+          main= . . . 
+        EBNF]
+] unit-test
+
+{ "++" } [
+  "++--" [EBNF tokenizer=("++" | "--") main="++" EBNF]
+] unit-test
+
+{ "\\" } [
+  "\\" [EBNF foo="\\" EBNF]
+] unit-test
diff --git a/extra/peg/ebnf/ebnf.factor b/basis/peg/ebnf/ebnf.factor
similarity index 59%
rename from extra/peg/ebnf/ebnf.factor
rename to basis/peg/ebnf/ebnf.factor
index 8a3a06c58d..7083262c49 100644
--- a/extra/peg/ebnf/ebnf.factor
+++ b/basis/peg/ebnf/ebnf.factor
@@ -1,13 +1,46 @@
 ! Copyright (C) 2007 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel compiler.units parser words arrays strings math.parser sequences 
+USING: kernel compiler.units words arrays strings math.parser sequences 
        quotations vectors namespaces math assocs continuations peg
-       peg.parsers unicode.categories multiline combinators.lib 
-       splitting accessors effects sequences.deep peg.search ;
+       peg.parsers unicode.categories multiline 
+       splitting accessors effects sequences.deep peg.search
+       combinators.short-circuit lexer io.streams.string
+       stack-checker io prettyprint combinators parser ;
 IN: peg.ebnf
 
+: rule ( name word -- parser )
+  #! Given an EBNF word produced from EBNF: return the EBNF rule
+  "ebnf-parser" word-prop at ;
+
+TUPLE: tokenizer any one many ;
+
+: default-tokenizer ( -- tokenizer )
+  T{ tokenizer f 
+    [ any-char ]
+    [ token ]
+    [ [ = ] curry any-char swap semantic ]
+  } ;
+
+: parser-tokenizer ( parser -- tokenizer )
+  [ 1quotation ] keep
+  [ swap [ = ] curry semantic ] curry dup \ tokenizer boa ;
+
+: rule-tokenizer ( name word -- tokenizer )
+  rule parser-tokenizer ;
+
+: tokenizer ( -- word )
+  \ tokenizer get-global [ default-tokenizer ] unless* ;
+
+: reset-tokenizer ( -- )
+  default-tokenizer \ tokenizer set-global ;
+
+: TOKENIZER: 
+  scan search [ "Tokenizer not found" throw ] unless*
+  execute \ tokenizer set-global ; parsing
+
 TUPLE: ebnf-non-terminal symbol ;
 TUPLE: ebnf-terminal symbol ;
+TUPLE: ebnf-foreign word rule ;
 TUPLE: ebnf-any-character ;
 TUPLE: ebnf-range pattern ;
 TUPLE: ebnf-ensure group ;
@@ -18,6 +51,7 @@ TUPLE: ebnf-repeat0 group ;
 TUPLE: ebnf-repeat1 group ;
 TUPLE: ebnf-optional group ;
 TUPLE: ebnf-whitespace group ;
+TUPLE: ebnf-tokenizer elements ;
 TUPLE: ebnf-rule symbol elements ;
 TUPLE: ebnf-action parser code ;
 TUPLE: ebnf-var parser name ;
@@ -26,6 +60,7 @@ TUPLE: ebnf rules ;
 
 C: <ebnf-non-terminal> ebnf-non-terminal
 C: <ebnf-terminal> ebnf-terminal
+C: <ebnf-foreign> ebnf-foreign
 C: <ebnf-any-character> ebnf-any-character
 C: <ebnf-range> ebnf-range
 C: <ebnf-ensure> ebnf-ensure
@@ -36,12 +71,17 @@ C: <ebnf-repeat0> ebnf-repeat0
 C: <ebnf-repeat1> ebnf-repeat1
 C: <ebnf-optional> ebnf-optional
 C: <ebnf-whitespace> ebnf-whitespace
+C: <ebnf-tokenizer> ebnf-tokenizer
 C: <ebnf-rule> ebnf-rule
 C: <ebnf-action> ebnf-action
 C: <ebnf-var> ebnf-var
 C: <ebnf-semantic> ebnf-semantic
 C: <ebnf> ebnf
 
+: filter-hidden ( seq -- seq )
+  #! Remove elements that produce no AST from sequence
+  [ ebnf-ensure-not? not ] filter [ ebnf-ensure? not ] filter ;
+
 : syntax ( string -- parser )
   #! Parses the string, ignoring white space, and
   #! does not put the result in the AST.
@@ -52,6 +92,26 @@ C: <ebnf> ebnf
   #! begin and end.
   [ syntax ] 2dip syntax pack ;
 
+#! Don't want to use 'replace' in an action since replace doesn't infer.
+#! Do the compilation of the peg at parse time and call (replace).
+PEG: escaper ( string -- ast )
+  [
+    "\\t" token [ drop "\t" ] action ,
+    "\\n" token [ drop "\n" ] action ,
+    "\\r" token [ drop "\r" ] action ,
+    "\\\\" token [ drop "\\" ] action ,
+  ] choice* any-char-parser 2array choice repeat0 ;
+
+: replace-escapes ( string -- string )
+  escaper sift [ [ tree-write ] each ] with-string-writer ;
+
+: insert-escapes ( string -- string )
+  [
+    "\t" token [ drop "\\t" ] action ,
+    "\n" token [ drop "\\n" ] action ,
+    "\r" token [ drop "\\r" ] action ,
+  ] choice* replace ;
+
 : 'identifier' ( -- parser )
   #! Return a parser that parses an identifer delimited by
   #! a quotation character. The quotation can be single
@@ -60,7 +120,7 @@ C: <ebnf> ebnf
   [
     [ CHAR: " = not ] satisfy repeat1 "\"" "\"" surrounded-by ,
     [ CHAR: ' = not ] satisfy repeat1 "'" "'" surrounded-by ,
-  ] choice* [ >string ] action ;
+  ] choice* [ >string replace-escapes ] action ;
   
 : 'non-terminal' ( -- parser )
   #! A non-terminal is the name of another rule. It can
@@ -87,7 +147,9 @@ C: <ebnf> ebnf
       [ dup CHAR: ? = ]
       [ dup CHAR: : = ]
       [ dup CHAR: ~ = ]
-    } || not nip    
+      [ dup CHAR: < = ]
+      [ dup CHAR: > = ]
+    } 0|| not nip    
   ] satisfy repeat1 [ >string <ebnf-non-terminal> ] action ;
 
 : 'terminal' ( -- parser )
@@ -95,6 +157,24 @@ C: <ebnf> ebnf
   #! and it represents the literal value of the identifier.
   'identifier' [ <ebnf-terminal> ] action ;
 
+: 'foreign-name' ( -- parser )
+  #! Parse a valid foreign parser name
+  [
+    {
+      [ dup blank?    ]
+      [ dup CHAR: > = ]
+    } 0|| not nip    
+  ] satisfy repeat1 [ >string ] action ;
+
+: 'foreign' ( -- parser )
+  #! A foreign call is a call to a rule in another ebnf grammar
+  [
+    "<foreign" syntax ,
+    'foreign-name' sp ,
+    'foreign-name' sp optional ,
+    ">" syntax ,
+  ] seq* [ first2 <ebnf-foreign> ] action ;
+
 : 'any-character' ( -- parser )
   #! A parser to match the symbol for any character match.
   [ CHAR: . = ] satisfy [ drop <ebnf-any-character> ] action ;
@@ -113,11 +193,18 @@ C: <ebnf> ebnf
   #! The latter indicates that it is the beginning of a
   #! new rule.
   [
-    [ 
-      'non-terminal' ,
-      'terminal' ,
-      'range-parser' ,
-      'any-character' ,
+    [
+      [ 
+        'non-terminal' ,
+        'terminal' ,
+        'foreign' ,
+        'range-parser' ,
+        'any-character' ,
+      ] choice* 
+      [ dup , "*" token hide , ] seq* [ first <ebnf-repeat0> ] action ,
+      [ dup , "+" token hide , ] seq* [ first <ebnf-repeat1> ] action ,
+      [ dup , "?[" token ensure-not , "?" token hide , ] seq* [ first <ebnf-optional> ] action ,
+      ,
     ] choice* ,
     [
       "=" syntax ensure-not ,
@@ -125,6 +212,8 @@ C: <ebnf> ebnf
     ] choice* ,
   ] seq* [ first ] action ;
 
+DEFER: 'action'
+
 : 'element' ( -- parser )
   [
     [ ('element') , ":" syntax , "a-zA-Z" range-pattern repeat1 [ >string ] action , ] seq* [ first2 <ebnf-var> ] action ,
@@ -192,14 +281,18 @@ DEFER: 'choice'
 : ('sequence') ( -- parser )
   #! A sequence of terminals and non-terminals, including
   #! groupings of those. 
-  [ 
-    'ensure-not' sp ,
-    'ensure' sp ,
-    'element' sp ,
-    'group' sp , 
-    'repeat0' sp ,
-    'repeat1' sp ,
-    'optional' sp , 
+  [
+    [ 
+      'ensure-not' sp ,
+      'ensure' sp ,
+      'element' sp ,
+      'group' sp , 
+      'repeat0' sp ,
+      'repeat1' sp ,
+      'optional' sp , 
+    ] choice* 
+    [ dup  , ":" syntax , "a-zA-Z" range-pattern repeat1 [ >string ] action , ] seq* [ first2 <ebnf-var> ] action ,
+    ,
   ] choice* ;
 
 : 'action' ( -- parser )
@@ -222,18 +315,25 @@ DEFER: 'choice'
 : 'actioned-sequence' ( -- parser )
   [
     [ 'sequence' , "=>" syntax , 'action' , ] seq* [ first2 <ebnf-action> ] action ,
-    [ 'sequence' , ":" syntax , "a-zA-Z" range-pattern repeat1 [ >string ] action , "=>" syntax , 'action' , ] seq* [ first3 >r <ebnf-var> r> <ebnf-action> ] action ,
-    [ 'sequence' , ":" syntax , "a-zA-Z" range-pattern repeat1 [ >string ] action , ] seq* [ first2 <ebnf-var> ] action ,
     'sequence' ,
   ] choice* ;
   
 : 'choice' ( -- parser )
-  'actioned-sequence' sp "|" token sp list-of [ 
+  'actioned-sequence' sp repeat1 [ dup length 1 = [ first ] [ <ebnf-sequence> ] if  ] action "|" token sp list-of [ 
     dup length 1 = [ first ] [ <ebnf-choice> ] if
   ] action ;
  
+: 'tokenizer' ( -- parser )
+  [
+    "tokenizer" syntax ,
+    "=" syntax ,
+    ">" token ensure-not ,
+    [ "default" token sp , 'choice' , ] choice* ,
+  ] seq* [ first <ebnf-tokenizer> ] action ;
+
 : 'rule' ( -- parser )
   [
+    "tokenizer" token ensure-not , 
     'non-terminal' [ symbol>> ] action  ,
     "=" syntax  ,
     ">" token ensure-not ,
@@ -241,7 +341,7 @@ DEFER: 'choice'
   ] seq* [ first2 <ebnf-rule> ] action ;
 
 : 'ebnf' ( -- parser )
-  'rule' sp repeat1 [ <ebnf> ] action ;
+  [ 'tokenizer' sp , 'rule' sp , ] choice* repeat1 [ <ebnf> ] action ;
 
 GENERIC: (transform) ( ast -- parser )
 
@@ -259,11 +359,23 @@ SYMBOL: ignore-ws
 
 M: ebnf (transform) ( ast -- parser )
   rules>> [ (transform) ] map peek ;
+
+M: ebnf-tokenizer (transform) ( ast -- parser )
+  elements>> dup "default" = [
+    drop default-tokenizer \ tokenizer set-global any-char
+  ] [
+  (transform) 
+  dup parser-tokenizer \ tokenizer set-global
+  ] if ;
   
 M: ebnf-rule (transform) ( ast -- parser )
   dup elements>> 
   (transform) [
-    swap symbol>> set
+    swap symbol>> dup get parser? [ 
+      "Rule '" over append "' defined more than once" append throw 
+    ] [ 
+      set 
+    ] if
   ] keep ;
 
 M: ebnf-sequence (transform) ( ast -- parser )
@@ -279,7 +391,7 @@ M: ebnf-choice (transform) ( ast -- parser )
   options>> [ (transform) ] map choice ;
 
 M: ebnf-any-character (transform) ( ast -- parser )
-  drop any-char ;
+  drop tokenizer any>> call ;
 
 M: ebnf-range (transform) ( ast -- parser )
   pattern>> range-pattern ;
@@ -309,23 +421,29 @@ M: ebnf-whitespace (transform) ( ast -- parser )
 GENERIC: build-locals ( code ast -- code )
 
 M: ebnf-sequence build-locals ( code ast -- code )
-  elements>> dup [ ebnf-var? ] filter empty? [
-    drop 
-  ] [ 
-    [
-      "USING: locals sequences ;  [let* | " %
-        dup length swap [
-          dup ebnf-var? [
-            name>> % 
-            " [ " % # " over nth ] " %
-          ] [
-            2drop
-          ] if
-        ] 2each
-        " | " %
-        %  
-        " ]" %     
-    ] "" make 
+  #! Note the need to filter out this ebnf items that
+  #! leave nothing in the AST
+  elements>> filter-hidden dup length 1 = [ 
+    first build-locals 
+  ]  [
+    dup [ ebnf-var? ] filter empty? [
+      drop 
+    ] [ 
+      [
+        "USING: locals sequences ;  [let* | " %
+          dup length swap [
+            dup ebnf-var? [
+              name>> % 
+              " [ " % # " over nth ] " %
+            ] [
+              2drop
+            ] if
+          ] 2each
+          " | " %
+          %  
+          " nip ]" %     
+      ] "" make 
+    ] if
   ] if ;
 
 M: ebnf-var build-locals ( code ast -- )
@@ -334,29 +452,50 @@ M: ebnf-var build-locals ( code ast -- )
     name>> % " [ dup ] " %
     " | " %
     %  
-    " ]" %     
+    " nip ]" %     
   ] "" make ;
 
 M: object build-locals ( code ast -- )
   drop ;
    
+: check-action-effect ( quot -- quot )
+  dup infer {
+    { [ dup (( a -- b )) effect<= ] [ drop ] }
+    { [ dup (( -- b )) effect<= ] [ drop [ drop ] prepose ] }
+    [
+      [ 
+        "Bad effect: " write effect>string write 
+        " for quotation " write pprint
+      ] with-string-writer throw
+    ]
+  } cond ;
+ 
 M: ebnf-action (transform) ( ast -- parser )
-  [ parser>> (transform) ] [ code>> ] [ parser>> ] tri build-locals 
-  string-lines parse-lines action ;
+  [ parser>> (transform) ] [ code>> insert-escapes ] [ parser>> ] tri build-locals  
+  string-lines parse-lines check-action-effect action ;
 
 M: ebnf-semantic (transform) ( ast -- parser )
-  [ parser>> (transform) ] [ code>> ] [ parser>> ] tri build-locals 
+  [ parser>> (transform) ] [ code>> insert-escapes ] [ parser>> ] tri build-locals 
   string-lines parse-lines semantic ;
 
 M: ebnf-var (transform) ( ast -- parser )
   parser>> (transform) ;
 
 M: ebnf-terminal (transform) ( ast -- parser )
-  symbol>> token ;
+  symbol>> tokenizer one>> call ;
+
+M: ebnf-foreign (transform) ( ast -- parser )
+  dup word>> search
+  [ "Foreign word '" swap word>> append "' not found" append throw ] unless*
+  swap rule>> [ main ] unless* dupd swap rule [
+    nip
+  ] [
+    execute
+  ] if* ;
 
 : parser-not-found ( name -- * )
   [
-    "Parser " % % " not found." %
+    "Parser '" % % "' not found." %
   ] "" make throw ;
 
 M: ebnf-non-terminal (transform) ( ast -- parser )
@@ -365,39 +504,37 @@ M: ebnf-non-terminal (transform) ( ast -- parser )
   ] [ ] make box ;
 
 : transform-ebnf ( string -- object )
-  'ebnf' parse parse-result-ast transform ;
+  'ebnf' parse transform ;
 
 : check-parse-result ( result -- result )
   dup [
-    dup parse-result-remaining [ blank? ] trim empty? [
+    dup remaining>> [ blank? ] trim empty? [
       [ 
         "Unable to fully parse EBNF. Left to parse was: " %
-        parse-result-remaining % 
+        remaining>> % 
       ] "" make throw
     ] unless
   ] [
     "Could not parse EBNF" throw
   ] if ;
 
+: parse-ebnf ( string -- hashtable )
+  'ebnf' (parse) check-parse-result ast>> transform ;
+
 : ebnf>quot ( string -- hashtable quot )
-  'ebnf' parse check-parse-result 
-  parse-result-ast transform dup dup parser [ main swap at compile ] with-variable
-  [ compiled-parse ] curry [ with-scope ] curry ;
+  parse-ebnf dup dup parser [ main swap at compile ] with-variable
+  [ compiled-parse ] curry [ with-scope ast>> ] curry ;
 
-: replace-escapes ( string -- string )
-  [
-    "\\t" token [ drop "\t" ] action ,
-    "\\n" token [ drop "\n" ] action ,
-    "\\r" token [ drop "\r" ] action ,
-  ] choice* replace ;
+: <EBNF "EBNF>" reset-tokenizer parse-multiline-string parse-ebnf main swap at  
+  parsed reset-tokenizer ; parsing
 
-: [EBNF "EBNF]" parse-multiline-string replace-escapes ebnf>quot nip parsed ; parsing
+: [EBNF "EBNF]" reset-tokenizer parse-multiline-string ebnf>quot nip 
+  parsed \ call parsed reset-tokenizer ; parsing
 
 : EBNF: 
-  CREATE-WORD dup 
-  ";EBNF" parse-multiline-string replace-escapes
-  ebnf>quot swapd 1 1 <effect> define-declared "ebnf-parser" set-word-prop ; parsing
+  reset-tokenizer CREATE-WORD dup ";EBNF" parse-multiline-string  
+  ebnf>quot swapd 1 1 <effect> define-declared "ebnf-parser" set-word-prop 
+  reset-tokenizer ; parsing
+
+
 
-: rule ( name word -- parser )
-  #! Given an EBNF word produced from EBNF: return the EBNF rule
-  "ebnf-parser" word-prop at ;
\ No newline at end of file
diff --git a/extra/peg/ebnf/summary.txt b/basis/peg/ebnf/summary.txt
similarity index 100%
rename from extra/peg/ebnf/summary.txt
rename to basis/peg/ebnf/summary.txt
diff --git a/extra/peg/ebnf/tags.txt b/basis/peg/ebnf/tags.txt
similarity index 100%
rename from extra/peg/ebnf/tags.txt
rename to basis/peg/ebnf/tags.txt
diff --git a/extra/peg/parsers/parsers-docs.factor b/basis/peg/parsers/parsers-docs.factor
similarity index 77%
rename from extra/peg/parsers/parsers-docs.factor
rename to basis/peg/parsers/parsers-docs.factor
index d71fdaea3b..7ffd458fce 100755
--- a/extra/peg/parsers/parsers-docs.factor
+++ b/basis/peg/parsers/parsers-docs.factor
@@ -11,7 +11,7 @@ HELP: 1token
 } { $description
     "Calls 1string on a character and returns a parser that matches that character."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"a\" CHAR: a 1token parse parse-result-ast ." "\"a\"" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"a\" CHAR: a 1token parse ." "\"a\"" }
 } { $see-also 'string' } ;
 
 HELP: (list-of)
@@ -33,8 +33,8 @@ HELP: list-of
     "Returns a parser that returns a list of items separated by the separator parser.  Hides the separators and matches a list of one or more items."
 } { $notes "Use " { $link list-of-many } " to ensure a list contains two or more items." }
 { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"a\" \"a\" token \",\" token list-of parse parse-result-ast ." "V{ \"a\" }" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"a,a,a,a\" \"a\" token \",\" token list-of parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"a\" \"a\" token \",\" token list-of parse  ." "V{ \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"a,a,a,a\" \"a\" token \",\" token list-of parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
 } { $see-also list-of-many } ;
     
 HELP: list-of-many
@@ -46,8 +46,8 @@ HELP: list-of-many
     "Returns a parser that returns a list of items separated by the separator parser.  Hides the separators and matches a list of two or more items."
 } { $notes "Use " { $link list-of } " to return a list of only one item."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"a\" \"a\" token \",\" token list-of-many parse ." "f" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"a,a,a,a\" \"a\" token \",\" token list-of-many parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $code "USING: peg peg.parsers prettyprint ;" "\"a\" \"a\" token \",\" token list-of-many parse => exception" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"a,a,a,a\" \"a\" token \",\" token list-of-many parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
 } { $see-also list-of } ;
 
 HELP: epsilon
@@ -72,8 +72,8 @@ HELP: exactly-n
 } { $description
     "Returns a parser that matches an exact repetition of the input parser."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaa\" \"a\" token 4 exactly-n parse ." "f" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 4 exactly-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $code "USING: peg peg.parsers prettyprint ;" "\"aaa\" \"a\" token 4 exactly-n parse => exception" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 4 exactly-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
 } { $see-also at-least-n at-most-n from-m-to-n } ;
 
 HELP: at-least-n
@@ -84,9 +84,9 @@ HELP: at-least-n
 } { $description
     "Returns a parser that matches n or more repetitions of the input parser."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaa\" \"a\" token 4 at-least-n parse ." "f" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 4 at-least-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaaa\" \"a\" token 4 at-least-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" \"a\" }" }
+    { $code "USING: peg peg.parsers prettyprint ;" "\"aaa\" \"a\" token 4 at-least-n parse => exception"}
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 4 at-least-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaaa\" \"a\" token 4 at-least-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" \"a\" }" }
 } { $see-also exactly-n at-most-n from-m-to-n } ;
 
 HELP: at-most-n
@@ -97,8 +97,8 @@ HELP: at-most-n
 } { $description
     "Returns a parser that matches n or fewer repetitions of the input parser."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 4 at-most-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaaa\" \"a\" token 4 at-most-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 4 at-most-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaaa\" \"a\" token 4 at-most-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
 } { $see-also exactly-n at-least-n from-m-to-n } ;
 
 HELP: from-m-to-n
@@ -110,9 +110,9 @@ HELP: from-m-to-n
 } { $description
     "Returns a parser that matches between and including m to n repetitions of the input parser."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaa\" \"a\" token 3 4 from-m-to-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" }" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 3 4 from-m-to-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
-    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaaa\" \"a\" token 3 4 from-m-to-n parse parse-result-ast ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaa\" \"a\" token 3 4 from-m-to-n parse ." "V{ \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaa\" \"a\" token 3 4 from-m-to-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"aaaaa\" \"a\" token 3 4 from-m-to-n parse ." "V{ \"a\" \"a\" \"a\" \"a\" }" }
 } { $see-also exactly-n at-most-n at-least-n } ;
 
 HELP: pack
@@ -124,7 +124,7 @@ HELP: pack
 } { $description
     "Returns a parser that parses the begin, body, and end parsers in order.  The begin and end parsers are hidden."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"hi123bye\" \"hi\" token 'integer' \"bye\" token pack parse parse-result-ast ." "123" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"hi123bye\" \"hi\" token 'integer' \"bye\" token pack parse ." "123" }
 } { $see-also surrounded-by } ;
 
 HELP: surrounded-by
@@ -136,7 +136,7 @@ HELP: surrounded-by
 } { $description
     "Calls token on begin and end to make them into string parsers.  Returns a parser that parses the begin, body, and end parsers in order.  The begin and end parsers are hidden."
 } { $examples
-    { $example "USING: peg peg.parsers prettyprint ;" "\"hi123bye\" 'integer' \"hi\" \"bye\" surrounded-by parse parse-result-ast ." "123" }
+    { $example "USING: peg peg.parsers prettyprint ;" "\"hi123bye\" 'integer' \"hi\" \"bye\" surrounded-by parse ." "123" }
 } { $see-also pack } ;
 
 HELP: 'digit'
@@ -173,7 +173,7 @@ HELP: range-pattern
 "of characters separated with a dash (-) represents the "
 "range of characters from the first to the second, inclusive."
 { $examples
-    { $example "USING: peg peg.parsers prettyprint strings ;" "\"a\" \"_a-zA-Z\" range-pattern parse parse-result-ast 1string ." "\"a\"" } 
-    { $example "USING: peg peg.parsers prettyprint ;\n\"0\" \"^0-9\" range-pattern parse ." "f" } 
+    { $example "USING: peg peg.parsers prettyprint strings ;" "\"a\" \"_a-zA-Z\" range-pattern parse 1string ." "\"a\"" } 
+    { $code "USING: peg peg.parsers prettyprint ;\n\"0\" \"^0-9\" range-pattern parse => exception"} 
 }
 }  ;
diff --git a/basis/peg/parsers/parsers-tests.factor b/basis/peg/parsers/parsers-tests.factor
new file mode 100644
index 0000000000..20d19c9a64
--- /dev/null
+++ b/basis/peg/parsers/parsers-tests.factor
@@ -0,0 +1,51 @@
+USING: kernel peg peg.parsers tools.test accessors ;
+IN: peg.parsers.tests
+
+{ V{ "a" } }
+[ "a" "a" token "," token list-of parse ] unit-test
+
+{ V{ "a" "a" "a" "a" } }
+[ "a,a,a,a" "a" token "," token list-of parse ] unit-test
+
+[ "a" "a" token "," token list-of-many parse ] must-fail
+
+{ V{ "a" "a" "a" "a" } }
+[ "a,a,a,a" "a" token "," token list-of-many parse ] unit-test
+
+[ "aaa" "a" token 4 exactly-n parse ] must-fail
+
+{ V{ "a" "a" "a" "a" } }
+[ "aaaa" "a" token 4 exactly-n parse ] unit-test
+
+[ "aaa" "a" token 4 at-least-n parse ] must-fail
+
+{ V{ "a" "a" "a" "a" } }
+[ "aaaa" "a" token 4 at-least-n parse ] unit-test
+
+{ V{ "a" "a" "a" "a" "a" } }
+[ "aaaaa" "a" token 4 at-least-n parse ] unit-test
+
+{ V{ "a" "a" "a" "a" } }
+[ "aaaa" "a" token 4 at-most-n parse ] unit-test
+
+{ V{ "a" "a" "a" "a" } }
+[ "aaaaa" "a" token 4 at-most-n parse ] unit-test
+
+{ V{ "a" "a" "a" } }
+[ "aaa" "a" token 3 4 from-m-to-n parse ] unit-test
+
+{ V{ "a" "a" "a" "a" } }
+[ "aaaa" "a" token 3 4 from-m-to-n parse ] unit-test
+
+{ V{ "a" "a" "a" "a" } }
+[ "aaaaa" "a" token 3 4 from-m-to-n parse ] unit-test
+
+{ 97 }
+[ "a" any-char parse ] unit-test
+
+{ V{ } }
+[ "" epsilon parse ] unit-test
+
+{ "a" } [
+  "a" "a" token just parse
+] unit-test
\ No newline at end of file
diff --git a/extra/peg/parsers/parsers.factor b/basis/peg/parsers/parsers.factor
similarity index 83%
rename from extra/peg/parsers/parsers.factor
rename to basis/peg/parsers/parsers.factor
index 784e6c064c..93de40d672 100755
--- a/extra/peg/parsers/parsers.factor
+++ b/basis/peg/parsers/parsers.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2007, 2008 Chris Double, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences strings namespaces math assocs shuffle 
-     vectors arrays combinators.lib math.parser 
+     vectors arrays math.parser accessors
      unicode.categories sequences.deep peg peg.private 
-     peg.search math.ranges words memoize ;
+     peg.search math.ranges words ;
 IN: peg.parsers
 
 TUPLE: just-parser p1 ;
@@ -11,24 +11,22 @@ TUPLE: just-parser p1 ;
 : just-pattern
   [
     execute dup [
-      dup parse-result-remaining empty? [ drop f ] unless
+      dup remaining>> empty? [ drop f ] unless
     ] when
   ] ;
 
 
 M: just-parser (compile) ( parser -- quot )
-  just-parser-p1 compiled-parser just-pattern curry ;
+  p1>> compile-parser just-pattern curry ;
 
-MEMO: just ( parser -- parser )
-  just-parser boa init-parser ;
+: just ( parser -- parser )
+  just-parser boa wrap-peg ;
 
 : 1token ( ch -- parser ) 1string token ;
 
-<PRIVATE
 : (list-of) ( items separator repeat1? -- parser )
   >r over 2seq r> [ repeat1 ] [ repeat0 ] if [ concat ] action 2seq
   [ unclip 1vector swap first append ] action ;
-PRIVATE>
 
 : list-of ( items separator -- parser )
   hide f (list-of) ;
@@ -47,10 +45,10 @@ PRIVATE>
 
 PRIVATE>
 
-MEMO: exactly-n ( parser n -- parser' )
+: exactly-n ( parser n -- parser' )
   swap <repetition> seq ;
 
-MEMO: at-most-n ( parser n -- parser' )
+: at-most-n ( parser n -- parser' )
   dup zero? [
     2drop epsilon
   ] [
@@ -58,15 +56,15 @@ MEMO: at-most-n ( parser n -- parser' )
     -rot 1- at-most-n 2choice
   ] if ;
 
-MEMO: at-least-n ( parser n -- parser' )
+: at-least-n ( parser n -- parser' )
   dupd exactly-n swap repeat0 2seq
   [ flatten-vectors ] action ;
 
-MEMO: from-m-to-n ( parser m n -- parser' )
+: from-m-to-n ( parser m n -- parser' )
   >r [ exactly-n ] 2keep r> swap - at-most-n 2seq
   [ flatten-vectors ] action ;
 
-MEMO: pack ( begin body end -- parser )
+: pack ( begin body end -- parser )
   >r >r hide r> r> hide 3seq [ first ] action ;
 
 : surrounded-by ( parser begin end -- parser' )
diff --git a/extra/peg/peg-docs.factor b/basis/peg/peg-docs.factor
similarity index 91%
rename from extra/peg/peg-docs.factor
rename to basis/peg/peg-docs.factor
index 10e05a2512..00390c1b1e 100644
--- a/extra/peg/peg-docs.factor
+++ b/basis/peg/peg-docs.factor
@@ -7,11 +7,11 @@ HELP: parse
 { $values 
   { "input" "a string" } 
   { "parser" "a parser" } 
-  { "result" "a parse-result or f" } 
+  { "ast" "an object" } 
 }
 { $description 
-    "Given the input string, parse it using the given parser. The result is a <parse-result> object if "
-    "the parse was successful, otherwise it is f." } 
+    "Given the input string, parse it using the given parser. The result is the abstract "
+    "syntax tree returned by the parser." } 
 { $see-also compile } ;
 
 HELP: compile
@@ -20,7 +20,7 @@ HELP: compile
   { "word" "a word" } 
 }
 { $description 
-    "Compile the parser to a word. The word will have stack effect ( -- result )."
+    "Compile the parser to a word. The word will have stack effect ( -- ast )."
 } 
 { $see-also parse } ;
 
@@ -104,8 +104,7 @@ HELP: semantic
     "Returns a parser that succeeds if the 'p1' parser succeeds and the quotation called with "
     "the AST produced by 'p1' on the stack returns true." }
 { $examples 
-  { $example "USING: kernel math peg prettyprint ;" "\"A\" [ drop t ] satisfy [ 66 > ] semantic parse ." "f" } 
-  { $example "USING: kernel math peg prettyprint ;" "\"C\" [ drop t ] satisfy [ 66 > ] semantic parse parse-result-ast ." "67" } 
+  { $example "USING: kernel math peg prettyprint ;" "\"C\" [ drop t ] satisfy [ 66 > ] semantic parse ." "67" } 
 } ;
 
 HELP: ensure
diff --git a/extra/peg/peg-tests.factor b/basis/peg/peg-tests.factor
similarity index 67%
rename from extra/peg/peg-tests.factor
rename to basis/peg/peg-tests.factor
index 1beeb51678..11001ca411 100644
--- a/extra/peg/peg-tests.factor
+++ b/basis/peg/peg-tests.factor
@@ -5,99 +5,99 @@ USING: kernel tools.test strings namespaces arrays sequences
        peg peg.private accessors words math accessors ;
 IN: peg.tests
 
-{ f } [
+[
   "endbegin" "begin" token parse
-] unit-test
+] must-fail
 
 { "begin" "end" } [
-  "beginend" "begin" token parse 
-  { ast>> remaining>> } get-slots
+  "beginend" "begin" token (parse) 
+  [ ast>> ] [ remaining>> ] bi
   >string
 ] unit-test
 
-{ f } [
+[
   "" CHAR: a CHAR: z range parse
-] unit-test
+] must-fail
 
-{ f } [
+[
   "1bcd" CHAR: a CHAR: z range parse
-] unit-test
+] must-fail
 
 { CHAR: a } [
-  "abcd" CHAR: a CHAR: z range parse ast>>
+  "abcd" CHAR: a CHAR: z range parse
 ] unit-test
 
 { CHAR: z } [
-  "zbcd" CHAR: a CHAR: z range parse ast>>
+  "zbcd" CHAR: a CHAR: z range parse
 ] unit-test
 
-{ f } [
+[
   "bad" "a" token "b" token 2array seq parse
-] unit-test
+] must-fail
 
 { V{ "g" "o" } } [
-  "good" "g" token "o" token 2array seq parse ast>>
+  "good" "g" token "o" token 2array seq parse
 ] unit-test
 
 { "a" } [
-  "abcd" "a" token "b" token 2array choice parse ast>>
+  "abcd" "a" token "b" token 2array choice parse
 ] unit-test
 
 { "b" } [
-  "bbcd" "a" token "b" token 2array choice parse ast>>
+  "bbcd" "a" token "b" token 2array choice parse
 ] unit-test
 
-{ f } [
+[
   "cbcd" "a" token "b" token 2array choice parse 
-] unit-test
+] must-fail
 
-{ f } [
+[
   "" "a" token "b" token 2array choice parse 
+] must-fail
+
+{ 0 } [
+  "" "a" token repeat0 parse length
 ] unit-test
 
 { 0 } [
-  "" "a" token repeat0 parse ast>> length
-] unit-test
-
-{ 0 } [
-  "b" "a" token repeat0 parse ast>> length
+  "b" "a" token repeat0 parse length
 ] unit-test
 
 { V{ "a" "a" "a" } } [
-  "aaab" "a" token repeat0 parse ast>> 
+  "aaab" "a" token repeat0 parse 
 ] unit-test
 
-{ f } [
+[
   "" "a" token repeat1 parse 
-] unit-test
+] must-fail
 
-{ f } [
+[
   "b" "a" token repeat1 parse 
-] unit-test
+] must-fail
 
 { V{ "a" "a" "a" } } [
-  "aaab" "a" token repeat1 parse ast>>
+  "aaab" "a" token repeat1 parse
 ] unit-test
 
 { V{ "a" "b" } } [ 
-  "ab" "a" token optional "b" token 2array seq parse ast>> 
+  "ab" "a" token optional "b" token 2array seq parse 
 ] unit-test
 
 { V{ f "b" } } [ 
-  "b" "a" token optional "b" token 2array seq parse ast>> 
+  "b" "a" token optional "b" token 2array seq parse 
 ] unit-test
 
-{ f } [ 
+[ 
   "cb" "a" token optional "b" token 2array seq parse  
-] unit-test
+] must-fail
 
 { V{ CHAR: a CHAR: b } } [
-  "ab" "a" token ensure CHAR: a CHAR: z range dup 3array seq parse ast>>
+  "ab" "a" token ensure CHAR: a CHAR: z range dup 3array seq parse
 ] unit-test
 
-{ f } [
+[
   "bb" "a" token ensure CHAR: a CHAR: z range 2array seq parse 
-] unit-test
+] must-fail
 
 { t } [
   "a+b" 
@@ -117,47 +117,47 @@ IN: peg.tests
   parse [ t ] [ f ] if
 ] unit-test
 
-{ f } [
+[
   "a++b" 
   "a" token "+" token "++" token 2array choice "b" token 3array seq
   parse [ t ] [ f ] if
-] unit-test
+] must-fail
 
 { 1 } [
-  "a" "a" token [ drop 1 ] action parse ast>> 
+  "a" "a" token [ drop 1 ] action parse 
 ] unit-test
 
 { V{ 1 1 } } [
-  "aa" "a" token [ drop 1 ] action dup 2array seq parse ast>> 
+  "aa" "a" token [ drop 1 ] action dup 2array seq parse 
 ] unit-test
 
-{ f } [
+[
   "b" "a" token [ drop 1 ] action parse 
-] unit-test
+] must-fail
 
-{ f } [ 
+[ 
   "b" [ CHAR: a = ] satisfy parse 
-] unit-test
+] must-fail
 
 { CHAR: a } [ 
-  "a" [ CHAR: a = ] satisfy parse ast>>
+  "a" [ CHAR: a = ] satisfy parse
 ] unit-test
 
 { "a" } [
-  "    a" "a" token sp parse ast>>
+  "    a" "a" token sp parse
 ] unit-test
 
 { "a" } [
-  "a" "a" token sp parse ast>>
+  "a" "a" token sp parse
 ] unit-test
 
 { V{ "a" } } [
-  "[a]" "[" token hide "a" token "]" token hide 3array seq parse ast>>
+  "[a]" "[" token hide "a" token "]" token hide 3array seq parse
 ] unit-test
 
-{ f } [
+[
   "a]" "[" token hide "a" token "]" token hide 3array seq parse 
-] unit-test
+] must-fail
 
 
 { V{ "1" "-" "1" } V{ "1" "+" "1" } } [
@@ -165,8 +165,8 @@ IN: peg.tests
     [ "1" token , "-" token , "1" token , ] seq* ,
     [ "1" token , "+" token , "1" token , ] seq* ,
   ] choice* 
-  "1-1" over parse ast>> swap
-  "1+1" swap parse ast>>
+  "1-1" over parse swap
+  "1+1" swap parse
 ] unit-test
 
 : expr ( -- parser ) 
@@ -175,21 +175,22 @@ IN: peg.tests
   [ expr ] delay "+" token "1" token 3seq "1" token 2choice ;
 
 { V{ V{ "1" "+" "1" } "+" "1" } } [
-  "1+1+1" expr parse ast>>   
+  "1+1+1" expr parse   
 ] unit-test
 
 { t } [
   #! Ensure a circular parser doesn't loop infinitely
   [ f , "a" token , ] seq*
-  dup parsers>>
+  dup peg>> parsers>>
   dupd 0 swap set-nth compile word?
 ] unit-test
 
-{ f } [
+[
   "A" [ drop t ] satisfy [ 66 >= ] semantic parse 
-] unit-test
+] must-fail
 
 { CHAR: B } [
-  "B" [ drop t ] satisfy [ 66 >= ] semantic parse ast>>
+  "B" [ drop t ] satisfy [ 66 >= ] semantic parse
 ] unit-test
 
+{ f } [ \ + T{ parser f f f } equal? ] unit-test
\ No newline at end of file
diff --git a/extra/peg/peg.factor b/basis/peg/peg.factor
similarity index 53%
rename from extra/peg/peg.factor
rename to basis/peg/peg.factor
index b420574a3b..9ef1ac658e 100755
--- a/extra/peg/peg.factor
+++ b/basis/peg/peg.factor
@@ -1,59 +1,107 @@
 ! Copyright (C) 2007, 2008 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel sequences strings fry namespaces math assocs shuffle 
-       vectors arrays math.parser math.order
-       unicode.categories compiler.units parser
-       words quotations effects memoize accessors locals effects splitting ;
+USING: kernel sequences strings fry namespaces math assocs shuffle debugger io
+       vectors arrays math.parser math.order vectors combinators
+       classes sets unicode.categories compiler.units parser
+       words quotations effects memoize accessors locals effects splitting 
+       combinators.short-circuit combinators.short-circuit.smart
+       generalizations ;
 IN: peg
 
 USE: prettyprint
 
 TUPLE: parse-result remaining ast ;
+TUPLE: parse-error position messages ; 
+TUPLE: parser peg compiled id ;
 
-TUPLE: parser id compiled ;
-
-M: parser equal? [ id>> ] bi@ = ;
-
+M: parser equal?    { [ [ class ] bi@ = ] [ [ id>> ] bi@ = ] } 2&& ;
 M: parser hashcode* id>> hashcode* ;
 
-C: <parser> parser
+C: <parse-result> parse-result
+C: <parse-error>  parse-error
 
+M: parse-error error.
+  "Peg parsing error at character position " write dup position>> number>string write 
+  "." print "Expected " write messages>> [ " or " write ] [ write ] interleave nl ;
+
+SYMBOL: error-stack
+
+: (merge-errors) ( a b -- c )
+  {
+    { [ over position>> not ] [ nip ] } 
+    { [ dup  position>> not ] [ drop ] } 
+    [ 2dup [ position>> ] bi@ <=> {
+        { +lt+ [ nip ] }
+        { +gt+ [ drop ] }
+        { +eq+ [ messages>> over messages>> union [ position>> ] dip <parse-error> ] }
+      } case 
+    ]
+  } cond ;
+
+: merge-errors ( -- )
+  error-stack get dup length 1 >  [
+    dup pop over pop swap (merge-errors) swap push
+  ] [
+    drop
+  ] if ;
+
+: add-error ( remaining message -- )
+  <parse-error> error-stack get push ;
+  
 SYMBOL: ignore 
 
-: <parse-result> ( remaining ast -- parse-result )
-  parse-result boa ;
+: packrat ( id -- cache )
+  #! The packrat cache is a mapping of parser-id->cache.
+  #! For each parser it maps to a cache holding a mapping
+  #! of position->result. The packrat cache therefore keeps
+  #! track of all parses that have occurred at each position
+  #! of the input string and the results obtained from that
+  #! parser.
+  \ packrat get [ drop H{ } clone ] cache ;
 
-SYMBOL: packrat
 SYMBOL: pos
 SYMBOL: input
 SYMBOL: fail
 SYMBOL: lrstack
-SYMBOL: heads
+
+: heads ( -- cache )
+  #! A mapping from position->peg-head.	It maps a
+  #! position in the input string being parsed to 
+  #! the head of the left recursion which is currently
+  #! being grown. It is 'f' at any position where
+  #! left recursion growth is not underway.
+  \ heads get ;
 
 : failed? ( obj -- ? )
   fail = ;
 
-: delegates ( -- cache )
-  \ delegates get-global [ H{ } clone dup \ delegates set-global ] unless* ;
+: peg-cache ( -- cache )
+  #! Holds a hashtable mapping a peg tuple to
+  #! the parser tuple for that peg. The parser tuple
+  #! holds a unique id and the compiled form of that peg.
+  \ peg-cache get-global [
+    H{ } clone dup \ peg-cache set-global
+  ] unless* ;
 
 : reset-pegs ( -- )
-  H{ } clone \ delegates set-global ;
+  H{ } clone \ peg-cache set-global ;
 
 reset-pegs 
 
+#! An entry in the table of memoized parse results
+#! ast = an AST produced from the parse
+#!       or the symbol 'fail'
+#!       or a left-recursion object
+#! pos = the position in the input string of this entry
 TUPLE: memo-entry ans pos ;
-C: <memo-entry> memo-entry
 
-TUPLE: left-recursion seed rule head next ;
-C: <left-recursion> left-recursion
- 
-TUPLE: peg-head rule involved-set eval-set ;
-C: <head> peg-head
+TUPLE: left-recursion seed rule-id head next ; 
+TUPLE: peg-head rule-id involved-set eval-set ;
 
-: rule-parser ( rule -- parser ) 
+: rule-id ( word -- id ) 
   #! A rule is the parser compiled down to a word. It has
-  #! a "peg" property containing the original parser.
-  "peg" word-prop ;
+  #! a "peg-id" property containing the id of the original parser.
+  "peg-id" word-prop ;
 
 : input-slice ( -- slice )
   #! Return a slice of the input from the current parse position
@@ -62,12 +110,7 @@ C: <head> peg-head
 : input-from ( input -- n )
   #! Return the index from the original string that the
   #! input slice is based on.
-  dup slice? [ slice-from ] [ drop 0 ] if ;
-
-: input-cache ( parser -- cache )
-  #! From the packrat cache, obtain the cache for the parser 
-  #! that maps the position to the parser result.
-  id>> packrat get [ drop H{ } clone ] cache ;
+  dup slice? [ from>> ] [ drop 0 ] if ;
 
 : process-rule-result ( p result -- result )
   [
@@ -79,16 +122,18 @@ C: <head> peg-head
 : eval-rule ( rule -- ast )
   #! Evaluate a rule, return an ast resulting from it.
   #! Return fail if the rule failed. The rule has
-  #! stack effect ( input -- parse-result )
+  #! stack effect ( -- parse-result )
   pos get swap execute process-rule-result ; inline
 
-: memo ( pos rule -- memo-entry )
+: memo ( pos id -- memo-entry )
   #! Return the result from the memo cache. 
-  rule-parser input-cache at ;
+  packrat at 
+!  "  memo result " write dup . 
+  ;
 
-: set-memo ( memo-entry pos rule -- )
+: set-memo ( memo-entry pos id -- )
   #! Store an entry in the cache
-  rule-parser input-cache set-at ;
+  packrat set-at ;
 
 : update-m ( ast m -- )
   swap >>ans pos get >>pos drop ;
@@ -100,33 +145,33 @@ C: <head> peg-head
 : setup-growth ( h p -- )
   pos set dup involved-set>> clone >>eval-set drop ;
 
-: (grow-lr) ( h p r m -- )
+: (grow-lr) ( h p r: ( -- result ) m -- )
   >r >r [ setup-growth ] 2keep r> r>
   >r dup eval-rule r> swap
   dup pick stop-growth? [
-    4drop drop
+    5 ndrop
   ] [
     over update-m
     (grow-lr)
-  ] if ; inline
+  ] if ; inline recursive
  
 : grow-lr ( h p r m -- ast )
-  >r >r [ heads get set-at ] 2keep r> r>
+  >r >r [ heads set-at ] 2keep r> r>
   pick over >r >r (grow-lr) r> r>
-  swap heads get delete-at
+  swap heads delete-at
   dup pos>> pos set ans>>
   ; inline
 
 :: (setup-lr) ( r l s -- )
   s head>> l head>> eq? [
     l head>> s (>>head)
-    l head>> [ s rule>> suffix ] change-involved-set drop
+    l head>> [ s rule-id>> suffix ] change-involved-set drop
     r l s next>> (setup-lr)
   ] unless ;
 
 :: setup-lr ( r l -- )
   l head>> [
-    r V{ } clone V{ } clone <head> l (>>head)
+    r rule-id V{ } clone V{ } clone peg-head boa l (>>head)
   ] unless
   r l lrstack get (setup-lr) ;
 
@@ -134,7 +179,7 @@ C: <head> peg-head
   [let* |
           h [ m ans>> head>> ]
         |
-    h rule>> r eq? [
+    h rule-id>> r rule-id eq? [
       m ans>> seed>> m (>>ans)
       m ans>> failed? [
         fail
@@ -148,15 +193,15 @@ C: <head> peg-head
 
 :: recall ( r p -- memo-entry )
   [let* |
-          m [ p r memo ]
-          h [ p heads get at ]
+          m [ p r rule-id memo ]
+          h [ p heads at ]
         |
     h [
-      m r h involved-set>> h rule>> suffix member? not and [
-        fail p <memo-entry>
+      m r rule-id h involved-set>> h rule-id>> suffix member? not and [
+        fail p memo-entry boa
       ] [
-        r h eval-set>> member? [
-          h [ r swap remove ] change-eval-set drop
+        r rule-id h eval-set>> member? [
+          h [ r rule-id swap remove ] change-eval-set drop
           r eval-rule
           m update-m
           m
@@ -171,8 +216,8 @@ C: <head> peg-head
 
 :: apply-non-memo-rule ( r p -- ast )
   [let* |
-          lr  [ fail r f lrstack get <left-recursion> ]
-          m   [ lr lrstack set lr p <memo-entry> dup p r set-memo ]
+          lr  [ fail r rule-id f lrstack get left-recursion boa ]
+          m   [ lr lrstack set lr p memo-entry boa dup p r rule-id set-memo ]
           ans [ r eval-rule ]
         |
     lrstack get next>> lrstack set
@@ -194,10 +239,15 @@ C: <head> peg-head
     nip
   ] if ; 
 
+USE: prettyprint
+
 : apply-rule ( r p -- ast )
+!   2dup [ rule-id ] dip 2array "apply-rule: " write .
    2dup recall [
+!     "  memoed" print
      nip apply-memo-rule
    ] [
+!     "  not memoed" print
      apply-non-memo-rule
    ] if* ; inline
 
@@ -207,27 +257,37 @@ C: <head> peg-head
     input set
     0 pos set
     f lrstack set
-    H{ } clone heads set
-    H{ } clone packrat set
+    V{ } clone error-stack set
+    H{ } clone \ heads set
+    H{ } clone \ packrat set
   ] H{ } make-assoc swap bind ; inline
 
 
-GENERIC: (compile) ( parser -- quot )
+GENERIC: (compile) ( peg -- quot )
 
-: execute-parser ( word -- result )
-  pos get apply-rule dup failed? [ 
+: process-parser-result ( result -- result )
+  dup failed? [ 
     drop f 
   ] [
     input-slice swap <parse-result>
-  ] if ; inline
+  ] if ;
+    
+: execute-parser ( word -- result )
+  pos get apply-rule process-parser-result ; inline
 
 : parser-body ( parser -- quot )
   #! Return the body of the word that is the compiled version
   #! of the parser.
-  gensym 2dup swap (compile) 0 1 <effect> define-declared swap dupd "peg" set-word-prop
+  gensym 2dup swap peg>> (compile) 0 1 <effect> define-declared swap dupd id>> "peg-id" set-word-prop
   [ execute-parser ] curry ;
 
-: compiled-parser ( parser -- word )
+: preset-parser-word ( parser -- parser word )
+  gensym [ >>compiled ] keep ;
+
+: define-parser-word ( parser word -- )
+  swap parser-body (( -- result )) define-declared ;
+
+: compile-parser ( parser -- word )
   #! Look to see if the given parser has been compiled.
   #! If not, compile it to a temporary word, cache it,
   #! and return it. Otherwise return the existing one.
@@ -237,7 +297,7 @@ GENERIC: (compile) ( parser -- quot )
   dup compiled>> [
     nip
   ] [
-    gensym tuck >>compiled 2dup parser-body 0 1 <effect> define-declared dupd "peg" set-word-prop
+    preset-parser-word [ define-parser-word ] keep
   ] if* ;
 
 SYMBOL: delayed
@@ -246,22 +306,25 @@ SYMBOL: delayed
   #! Work through all delayed parsers and recompile their
   #! words to have the correct bodies.
   delayed get [
-    call compiled-parser 1quotation 0 1 <effect> define-declared
+    call compile-parser 1quotation 0 1 <effect> define-declared
   ] assoc-each ;
 
 : compile ( parser -- word )
   [
     H{ } clone delayed [ 
-      compiled-parser fixup-delayed 
+      compile-parser fixup-delayed 
     ] with-variable
   ] with-compilation-unit ;
 
 : compiled-parse ( state word -- result )
-  swap [ execute ] with-packrat ; inline 
+  swap [ execute [ error-stack get first throw ] unless* ] with-packrat ; inline 
 
-: parse ( input parser -- result )
+: (parse) ( input parser -- result )
   dup word? [ compile ] unless compiled-parse ;
 
+: parse ( input parser -- ast )
+  (parse) ast>> ;
+
 <PRIVATE
 
 SYMBOL: id 
@@ -274,24 +337,25 @@ SYMBOL: id
     1 id set-global 0
   ] if* ;
 
-: init-parser ( parser -- parser )
-  #! Set the delegate for the parser. Equivalent parsers
-  #! get a delegate with the same id.
-  dup clone delegates [
-    drop next-id f <parser> 
-  ] cache over set-delegate ;
+: wrap-peg ( peg -- parser )
+  #! Wrap a parser tuple around the peg object.
+  #! Look for an existing parser tuple for that
+  #! peg object.
+  peg-cache [
+    f next-id parser boa 
+  ] cache ;
 
 TUPLE: token-parser symbol ;
 
 : parse-token ( input string -- result )
   #! Parse the string, returning a parse result
-  dup >r ?head-slice [
-    r> <parse-result> 
+  [ ?head-slice ] keep swap [
+    <parse-result> f f add-error
   ] [
-    r> 2drop f
+    >r drop pos get "token '" r> append "'" append 1vector add-error f
   ] if ;
 
-M: token-parser (compile) ( parser -- quot )
+M: token-parser (compile) ( peg -- quot )
   symbol>> '[ input-slice , parse-token ] ;
    
 TUPLE: satisfy-parser quot ;
@@ -308,7 +372,7 @@ TUPLE: satisfy-parser quot ;
   ] if ; inline
 
 
-M: satisfy-parser (compile) ( parser -- quot )
+M: satisfy-parser (compile) ( peg -- quot )
   quot>> '[ input-slice , parse-satisfy ] ;
 
 TUPLE: range-parser min max ;
@@ -324,7 +388,7 @@ TUPLE: range-parser min max ;
     ] if
   ] if ;
 
-M: range-parser (compile) ( parser -- quot )
+M: range-parser (compile) ( peg -- quot )
   [ min>> ] [ max>> ] bi '[ input-slice , , parse-range ] ;
 
 TUPLE: seq-parser parsers ;
@@ -351,33 +415,38 @@ TUPLE: seq-parser parsers ;
     2drop f
   ] if ; inline
 
-M: seq-parser (compile) ( parser -- quot )
+M: seq-parser (compile) ( peg -- quot )
   [
     [ input-slice V{ } clone <parse-result> ] %
-    parsers>> [ compiled-parser 1quotation , \ parse-seq-element , ] each 
+    [
+      parsers>> unclip compile-parser 1quotation [ parse-seq-element ] curry ,
+      [ compile-parser 1quotation [ merge-errors ] compose [ parse-seq-element ] curry , ] each 
+    ] { } make , \ && , 
   ] [ ] make ;
 
 TUPLE: choice-parser parsers ;
 
-M: choice-parser (compile) ( parser -- quot )
+M: choice-parser (compile) ( peg -- quot )
   [ 
-    f ,
-    parsers>> [ compiled-parser 1quotation , \ unless* , ] each
+    [
+      parsers>> [ compile-parser ] map 
+      unclip 1quotation , [ 1quotation [ merge-errors ] compose , ] each
+    ] { } make , \ || ,
   ] [ ] make ;
 
 TUPLE: repeat0-parser p1 ;
 
-: (repeat) ( quot result -- result )
+: (repeat) ( quot: ( -- result ) result -- result )
   over call [
     [ remaining>> swap (>>remaining) ] 2keep 
     ast>> swap [ ast>> push ] keep
     (repeat) 
   ] [
     nip
-  ] if* ; inline
+  ] if* ; inline recursive
 
-M: repeat0-parser (compile) ( parser -- quot )
-  p1>> compiled-parser 1quotation '[ 
+M: repeat0-parser (compile) ( peg -- quot )
+  p1>> compile-parser 1quotation '[ 
     input-slice V{ } clone <parse-result> , swap (repeat) 
   ] ; 
 
@@ -390,8 +459,8 @@ TUPLE: repeat1-parser p1 ;
     f
   ] if* ;
 
-M: repeat1-parser (compile) ( parser -- quot )
-  p1>> compiled-parser 1quotation '[ 
+M: repeat1-parser (compile) ( peg -- quot )
+  p1>> compile-parser 1quotation '[ 
     input-slice V{ } clone <parse-result> , swap (repeat) repeat1-empty-check  
   ] ; 
 
@@ -400,8 +469,8 @@ TUPLE: optional-parser p1 ;
 : check-optional ( result -- result )
   [ input-slice f <parse-result> ] unless* ;
 
-M: optional-parser (compile) ( parser -- quot )
-  p1>> compiled-parser 1quotation '[ @ check-optional ] ;
+M: optional-parser (compile) ( peg -- quot )
+  p1>> compile-parser 1quotation '[ @ check-optional ] ;
 
 TUPLE: semantic-parser p1 quot ;
 
@@ -412,8 +481,8 @@ TUPLE: semantic-parser p1 quot ;
     drop
   ] if ; inline
 
-M: semantic-parser (compile) ( parser -- quot )
-  [ p1>> compiled-parser 1quotation ] [ quot>> ] bi  
+M: semantic-parser (compile) ( peg -- quot )
+  [ p1>> compile-parser 1quotation ] [ quot>> ] bi  
   '[ @ , check-semantic ] ;
 
 TUPLE: ensure-parser p1 ;
@@ -421,16 +490,16 @@ TUPLE: ensure-parser p1 ;
 : check-ensure ( old-input result -- result )
   [ ignore <parse-result> ] [ drop f ] if ;
 
-M: ensure-parser (compile) ( parser -- quot )
-  p1>> compiled-parser 1quotation '[ input-slice @ check-ensure ] ;
+M: ensure-parser (compile) ( peg -- quot )
+  p1>> compile-parser 1quotation '[ input-slice @ check-ensure ] ;
 
 TUPLE: ensure-not-parser p1 ;
 
 : check-ensure-not ( old-input result -- result )
   [ drop f ] [ ignore <parse-result> ] if ;
 
-M: ensure-not-parser (compile) ( parser -- quot )
-  p1>> compiled-parser 1quotation '[ input-slice @ check-ensure-not ] ;
+M: ensure-not-parser (compile) ( peg -- quot )
+  p1>> compile-parser 1quotation '[ input-slice @ check-ensure-not ] ;
 
 TUPLE: action-parser p1 quot ;
 
@@ -441,26 +510,19 @@ TUPLE: action-parser p1 quot ;
     drop
   ] if ; inline
 
-M: action-parser (compile) ( parser -- quot )
-  [ p1>> compiled-parser 1quotation ] [ quot>> ] bi '[ @ , check-action ] ;
-
-: left-trim-slice ( string -- string )
-  #! Return a new string without any leading whitespace
-  #! from the original string.
-  dup empty? [
-    dup first blank? [ rest-slice left-trim-slice ] when
-  ] unless ;
+M: action-parser (compile) ( peg -- quot )
+  [ p1>> compile-parser 1quotation ] [ quot>> ] bi '[ @ , check-action ] ;
 
 TUPLE: sp-parser p1 ;
 
-M: sp-parser (compile) ( parser -- quot )
-  p1>> compiled-parser 1quotation '[ 
-    input-slice left-trim-slice input-from pos set @ 
+M: sp-parser (compile) ( peg -- quot )
+  p1>> compile-parser 1quotation '[ 
+    input-slice [ blank? ] trim-left-slice input-from pos set @ 
   ] ;
 
 TUPLE: delay-parser quot ;
 
-M: delay-parser (compile) ( parser -- quot )
+M: delay-parser (compile) ( peg -- quot )
   #! For efficiency we memoize the quotation.
   #! This way it is run only once and the 
   #! parser constructed once at run time.
@@ -468,29 +530,26 @@ M: delay-parser (compile) ( parser -- quot )
 
 TUPLE: box-parser quot ;
 
-M: box-parser (compile) ( parser -- quot )
+M: box-parser (compile) ( peg -- quot )
   #! Calls the quotation at compile time
   #! to produce the parser to be compiled.
   #! This differs from 'delay' which calls
-  #! it at run time. Due to using the runtime
-  #! environment at compile time, this parser
-  #! must not be cached, so we clear out the
-  #! delgates cache.
-  f >>compiled quot>> call compiled-parser 1quotation ;
+  #! it at run time.
+  quot>> call compile-parser 1quotation ;
 
 PRIVATE>
 
 : token ( string -- parser )
-  token-parser boa init-parser ;      
+  token-parser boa wrap-peg ;      
 
 : satisfy ( quot -- parser )
-  satisfy-parser boa init-parser ;
+  satisfy-parser boa wrap-peg ;
 
 : range ( min max -- parser )
-  range-parser boa init-parser ;
+  range-parser boa wrap-peg ;
 
 : seq ( seq -- parser )
-  seq-parser boa init-parser ;
+  seq-parser boa wrap-peg ;
 
 : 2seq ( parser1 parser2 -- parser )
   2array seq ;
@@ -505,7 +564,7 @@ PRIVATE>
   { } make seq ; inline 
 
 : choice ( seq -- parser )
-  choice-parser boa init-parser ;
+  choice-parser boa wrap-peg ;
 
 : 2choice ( parser1 parser2 -- parser )
   2array choice ;
@@ -520,38 +579,38 @@ PRIVATE>
   { } make choice ; inline 
 
 : repeat0 ( parser -- parser )
-  repeat0-parser boa init-parser ;
+  repeat0-parser boa wrap-peg ;
 
 : repeat1 ( parser -- parser )
-  repeat1-parser boa init-parser ;
+  repeat1-parser boa wrap-peg ;
 
 : optional ( parser -- parser )
-  optional-parser boa init-parser ;
+  optional-parser boa wrap-peg ;
 
 : semantic ( parser quot -- parser )
-  semantic-parser boa init-parser ;
+  semantic-parser boa wrap-peg ;
 
 : ensure ( parser -- parser )
-  ensure-parser boa init-parser ;
+  ensure-parser boa wrap-peg ;
 
 : ensure-not ( parser -- parser )
-  ensure-not-parser boa init-parser ;
+  ensure-not-parser boa wrap-peg ;
 
 : action ( parser quot -- parser )
-  action-parser boa init-parser ;
+  action-parser boa wrap-peg ;
 
 : sp ( parser -- parser )
-  sp-parser boa init-parser ;
+  sp-parser boa wrap-peg ;
 
 : hide ( parser -- parser )
   [ drop ignore ] action ;
 
 : delay ( quot -- parser )
-  delay-parser boa init-parser ;
+  delay-parser boa wrap-peg ;
 
 : box ( quot -- parser )
   #! because a box has its quotation run at compile time
-  #! it must always have a new parser delgate created, 
+  #! it must always have a new parser wrapper created, 
   #! not a cached one. This is because the same box,
   #! compiled twice can have a different compiled word
   #! due to running at compile time.
@@ -561,13 +620,26 @@ PRIVATE>
   #! parse. The action adds an indirection with a parser type
   #! that gets memoized and fixes this. Need to rethink how
   #! to fix boxes so this isn't needed...
-  box-parser boa next-id f <parser> over set-delegate [ ] action ;
+  box-parser boa f next-id parser boa [ ] action ;
+
+ERROR: parse-failed input word ;
+
+M: parse-failed error.
+  "The " write dup word>> pprint " word could not parse the following input:" print nl
+  input>> . ;
 
 : PEG:
-  (:) [
+  (:)
+  [let | def [ ] word [ ] |
     [
-        call compile [ compiled-parse ] curry
-        [ dup [ parse-result-ast ] [ "Parse failed" throw ] if ]
-        append define
-    ] with-compilation-unit
-  ] 2curry over push-all ; parsing
+      [
+        [let | compiled-def [ def call compile ] |
+          [
+            dup compiled-def compiled-parse
+            [ ast>> ] [ word parse-failed ] ?if
+          ]
+          word swap define
+        ]
+      ] with-compilation-unit
+    ] over push-all
+  ] ; parsing
diff --git a/extra/lazy-lists/examples/authors.txt b/basis/peg/search/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/lazy-lists/examples/authors.txt
rename to basis/peg/search/authors.txt
diff --git a/extra/peg/search/search-docs.factor b/basis/peg/search/search-docs.factor
similarity index 100%
rename from extra/peg/search/search-docs.factor
rename to basis/peg/search/search-docs.factor
diff --git a/extra/peg/search/search-tests.factor b/basis/peg/search/search-tests.factor
similarity index 100%
rename from extra/peg/search/search-tests.factor
rename to basis/peg/search/search-tests.factor
diff --git a/extra/peg/search/search.factor b/basis/peg/search/search.factor
similarity index 72%
rename from extra/peg/search/search.factor
rename to basis/peg/search/search.factor
index 7ab7e83d12..04e4affe39 100755
--- a/extra/peg/search/search.factor
+++ b/basis/peg/search/search.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math io io.streams.string sequences strings
-combinators peg memoize arrays ;
+combinators peg memoize arrays continuations ;
 IN: peg.search
 
 : tree-write ( object -- )
@@ -16,15 +16,12 @@ MEMO: any-char-parser ( -- parser )
   [ drop t ] satisfy ;
 
 : search ( string parser -- seq )
-  any-char-parser [ drop f ] action 2array choice repeat0 parse dup [
-    parse-result-ast sift
-  ] [
-    drop { }
-  ] if ;
+  any-char-parser [ drop f ] action 2array choice repeat0 
+  [ parse sift ] [ 3drop { } ] recover ;
 
 
 : (replace) ( string parser -- seq )
-  any-char-parser 2array choice repeat0 parse parse-result-ast sift ;
+  any-char-parser 2array choice repeat0 parse sift ;
 
 : replace ( string parser -- result )
  [  (replace) [ tree-write ] each ] with-string-writer ;
diff --git a/extra/peg/search/summary.txt b/basis/peg/search/summary.txt
similarity index 100%
rename from extra/peg/search/summary.txt
rename to basis/peg/search/summary.txt
diff --git a/extra/peg/search/tags.txt b/basis/peg/search/tags.txt
similarity index 100%
rename from extra/peg/search/tags.txt
rename to basis/peg/search/tags.txt
diff --git a/extra/peg/summary.txt b/basis/peg/summary.txt
similarity index 100%
rename from extra/peg/summary.txt
rename to basis/peg/summary.txt
diff --git a/extra/peg/tags.txt b/basis/peg/tags.txt
similarity index 100%
rename from extra/peg/tags.txt
rename to basis/peg/tags.txt
diff --git a/basis/persistent/assocs/assocs.factor b/basis/persistent/assocs/assocs.factor
new file mode 100644
index 0000000000..59fbd3a51e
--- /dev/null
+++ b/basis/persistent/assocs/assocs.factor
@@ -0,0 +1,18 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel assocs ;
+IN: persistent.assocs
+
+GENERIC: new-at ( value key assoc -- assoc' )
+
+M: assoc new-at clone [ set-at ] keep ;
+
+GENERIC: pluck-at ( key assoc -- assoc' )
+
+M: assoc pluck-at clone [ delete-at ] keep ;
+
+: changed-at ( key assoc quot -- assoc' )
+    [ [ at ] dip call ] [ drop new-at ] 3bi ; inline
+
+: conjoined ( key assoc -- assoc' )
+    dupd new-at ;
diff --git a/extra/io/unix/backend/authors.txt b/basis/persistent/assocs/authors.txt
similarity index 100%
rename from extra/io/unix/backend/authors.txt
rename to basis/persistent/assocs/authors.txt
diff --git a/basis/persistent/assocs/summary.txt b/basis/persistent/assocs/summary.txt
new file mode 100644
index 0000000000..5fe330f444
--- /dev/null
+++ b/basis/persistent/assocs/summary.txt
@@ -0,0 +1 @@
+Persistent associative mapping protocol
diff --git a/extra/sequences/next/tags.txt b/basis/persistent/assocs/tags.txt
similarity index 100%
rename from extra/sequences/next/tags.txt
rename to basis/persistent/assocs/tags.txt
diff --git a/extra/qualified/authors.txt b/basis/persistent/deques/authors.txt
similarity index 100%
rename from extra/qualified/authors.txt
rename to basis/persistent/deques/authors.txt
diff --git a/basis/persistent/deques/deques-docs.factor b/basis/persistent/deques/deques-docs.factor
new file mode 100644
index 0000000000..43018bed16
--- /dev/null
+++ b/basis/persistent/deques/deques-docs.factor
@@ -0,0 +1,56 @@
+USING: help.markup help.syntax kernel sequences ;
+IN: persistent.deques
+
+ARTICLE: "persistent.deques" "Persistent deques"
+"A deque is a data structure that can be used as both a queue and a stack. That is, there are two ends, the front and the back, and values can be pushed onto and popped off of both ends. These operations take O(1) amortized time and space in a normal usage pattern."
+$nl
+"This vocabulary provides a deque implementation which is persistent and purely functional: old versions of deques are not modified by operations. Instead, each push and pop operation creates a new deque based off the old one."
+$nl
+"The class of persistent deques:"
+{ $subsection deque }
+"To create a deque:"
+{ $subsection <deque> }
+{ $subsection sequence>deque }
+"To test if a deque is empty:"
+{ $subsection deque-empty? }
+"To manipulate deques:"
+{ $subsection push-front }
+{ $subsection push-back }
+{ $subsection pop-front }
+{ $subsection pop-back }
+{ $subsection deque>sequence } ;
+
+HELP: deque
+{ $class-description "This is the class of persistent (functional) double-ended queues. All deque operations can be done in O(1) amortized time for single-threaded access while maintaining the old version. For more information, see " { $link "persistent.deques" } "." } ;
+
+HELP: <deque>
+{ $values { "deque" "an empty deque" } }
+{ $description "Creates an empty deque." } ;
+
+HELP: sequence>deque
+{ $values { "sequence" sequence } { "deque" deque } }
+{ $description "Given a sequence, creates a deque containing those elements in the order such that the beginning of the sequence is on the front and the end is on the back." } ;
+
+HELP: deque>sequence
+{ $values { "deque" deque } { "sequence" sequence } }
+{ $description "Given a deque, creates a sequence containing those elements, such that the front side of the deque is the beginning of the sequence." } ;
+
+HELP: deque-empty?
+{ $values { "deque" deque } { "?" "t/f" } }
+{ $description "Returns true if the deque is empty. This takes constant time." } ;
+
+HELP: push-front
+{ $values { "deque" deque } { "item" object } { "newdeque" deque } }
+{ $description "Creates a new deque with the given object pushed onto the front side. This takes constant time." } ;
+
+HELP: push-back
+{ $values { "deque" deque } { "item" object } { "newdeque" deque } }
+{ $description "Creates a new deque with the given object pushed onto the back side. This takes constant time." } ;
+
+HELP: pop-front
+{ $values { "deque" object } { "item" object } { "newdeque" deque } }
+{ $description "Creates a new deque with the frontmost item removed. This takes amortized constant time with single-threaded access." } ;
+
+HELP: pop-back
+{ $values { "deque" object } { "item" object } { "newdeque" deque } }
+{ $description "Creates a new deque with the backmost item removed. This takes amortized constant time with single-threaded access." } ;
diff --git a/basis/persistent/deques/deques-tests.factor b/basis/persistent/deques/deques-tests.factor
new file mode 100644
index 0000000000..96c7bd7ea2
--- /dev/null
+++ b/basis/persistent/deques/deques-tests.factor
@@ -0,0 +1,38 @@
+! Copyback (C) 2008 Daniel Ehrenberg
+! See http://factorcode.org/license.txt for BSD license.
+USING: tools.test persistent.deques kernel math ;
+IN: persistent.deques.tests
+
+[ 3 2 1 t ]
+[ { 1 2 3 } sequence>deque 3 [ pop-back ] times deque-empty? ] unit-test
+
+[ 1 2 3 t ]
+[ { 1 2 3 } sequence>deque 3 [ pop-front ] times deque-empty? ] unit-test
+
+[ 1 3 2 t ]
+[ { 1 2 3 } sequence>deque pop-front 2 [ pop-back ] times deque-empty? ]
+unit-test
+
+[ { 2 3 4 5 6 1 } ]
+[ { 1 2 3 4 5 6 } sequence>deque pop-front swap push-back deque>sequence ]
+unit-test
+
+[ 1 ] [ { 1 2 3 4 } sequence>deque peek-front ] unit-test
+[ 4 ] [ { 1 2 3 4 } sequence>deque peek-back ] unit-test
+
+[ 1 t ] [ <deque> 1 push-front pop-back deque-empty? ] unit-test
+[ 1 t ] [ <deque> 1 push-front pop-front deque-empty? ] unit-test
+[ 1 t ] [ <deque> 1 push-back pop-front deque-empty? ] unit-test
+[ 1 t ] [ <deque> 1 push-back pop-back deque-empty? ] unit-test
+
+[ 1 f ]
+[ <deque> 1 push-front 2 push-front pop-back deque-empty? ] unit-test
+
+[ 1 f ]
+[ <deque> 1 push-back 2 push-back pop-front deque-empty? ] unit-test
+
+[ 2 f ]
+[ <deque> 1 push-back 2 push-back pop-back deque-empty? ] unit-test
+
+[ 2 f ]
+[ <deque> 1 push-front 2 push-front pop-front deque-empty? ] unit-test
diff --git a/basis/persistent/deques/deques.factor b/basis/persistent/deques/deques.factor
new file mode 100644
index 0000000000..83c4a196d9
--- /dev/null
+++ b/basis/persistent/deques/deques.factor
@@ -0,0 +1,87 @@
+! Copyback (C) 2008 Daniel Ehrenberg
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors math qualified ;
+QUALIFIED: sequences
+IN: persistent.deques
+
+! Amortized O(1) push/pop on both ends for single-threaded access
+! In a pathological case, if there are m modified versions from the
+!   same source, it could take O(m) amortized time per update.
+
+<PRIVATE
+TUPLE: cons { car read-only } { cdr read-only } ;
+C: <cons> cons
+
+: each ( list quot: ( elt -- ) -- )
+    over
+    [ [ >r car>> r> call ] [ >r cdr>> r> ] 2bi each ]
+    [ 2drop ] if ; inline recursive
+
+: reduce ( list start quot -- end )
+    swapd each ; inline
+
+: reverse ( list -- reversed )
+    f [ swap <cons> ] reduce ;
+
+: length ( list -- length )
+    0 [ drop 1+ ] reduce ;
+
+: cut ( list index -- back front-reversed )
+    f swap [ >r [ cdr>> ] [ car>> ] bi r> <cons> ] times ;
+
+: split-reverse ( list -- back-reversed front )
+    dup length 2/ cut [ reverse ] bi@ ;
+PRIVATE>
+
+TUPLE: deque { front read-only } { back read-only } ;
+: <deque> ( -- deque ) T{ deque } ;
+
+<PRIVATE
+: flip ( deque -- newdeque )
+    [ back>> ] [ front>> ] bi deque boa ;
+
+: flipped ( deque quot -- newdeque )
+    >r flip r> call flip ;
+PRIVATE>
+
+: deque-empty? ( deque -- ? )
+    [ front>> ] [ back>> ] bi or not ;
+
+<PRIVATE
+: push ( item deque -- newdeque )
+    [ front>> <cons> ] [ back>> ] bi deque boa ; inline
+PRIVATE>
+
+: push-front ( deque item -- newdeque )
+    swap push ;
+
+: push-back ( deque item -- newdeque )
+    swap [ push ] flipped ;
+
+<PRIVATE
+: remove ( deque -- item newdeque )
+    [ front>> car>> ] [ [ front>> cdr>> ] [ back>> ] bi deque boa ] bi ; inline
+
+: transfer ( deque -- item newdeque )
+    back>> [ split-reverse deque boa remove ]
+    [ "Popping from an empty deque" throw ] if* ; inline
+
+: pop ( deque -- item newdeque )
+    dup front>> [ remove ] [ transfer ] if ; inline
+PRIVATE>
+
+: pop-front ( deque -- item newdeque )
+    pop ;
+
+: pop-back ( deque -- item newdeque )
+    [ pop ] flipped ;
+
+: peek-front ( deque -- item ) pop-front drop ;
+
+: peek-back ( deque -- item ) pop-back drop ;
+
+: sequence>deque ( sequence -- deque )
+    <deque> [ push-back ] sequences:reduce ;
+
+: deque>sequence ( deque -- sequence )
+    [ dup deque-empty? not ] [ pop-front swap ] [ ] sequences:produce nip ;
diff --git a/basis/persistent/deques/summary.txt b/basis/persistent/deques/summary.txt
new file mode 100644
index 0000000000..021a1e3fef
--- /dev/null
+++ b/basis/persistent/deques/summary.txt
@@ -0,0 +1 @@
+Persistent amortized O(1) deques
diff --git a/extra/trees/avl/tags.txt b/basis/persistent/deques/tags.txt
similarity index 100%
rename from extra/trees/avl/tags.txt
rename to basis/persistent/deques/tags.txt
diff --git a/extra/io/unix/bsd/authors.txt b/basis/persistent/hashtables/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/unix/bsd/authors.txt
rename to basis/persistent/hashtables/authors.txt
diff --git a/basis/persistent/hashtables/config/config.factor b/basis/persistent/hashtables/config/config.factor
new file mode 100644
index 0000000000..a761e2d327
--- /dev/null
+++ b/basis/persistent/hashtables/config/config.factor
@@ -0,0 +1,8 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: layouts kernel parser math ;
+IN: persistent.hashtables.config
+
+: radix-bits ( -- n ) << cell 4 = 4 5 ? parsed >> ; foldable
+: radix-mask ( -- n ) radix-bits 2^ 1- ; foldable
+: full-bitmap-mask ( -- n ) radix-bits 2^ 2^ 1- ; inline
diff --git a/basis/persistent/hashtables/hashtables-tests.factor b/basis/persistent/hashtables/hashtables-tests.factor
new file mode 100644
index 0000000000..ac6aa240cc
--- /dev/null
+++ b/basis/persistent/hashtables/hashtables-tests.factor
@@ -0,0 +1,116 @@
+IN: persistent.hashtables.tests
+USING: persistent.hashtables persistent.assocs hashtables assocs
+tools.test kernel namespaces random math.ranges sequences fry ;
+
+[ t ] [ PH{ } assoc-empty? ] unit-test
+
+[ PH{ { "A" "B" } } ] [ PH{ } "B" "A" rot new-at ] unit-test
+
+[ "B" ] [ "A" PH{ { "A" "B" } } at ] unit-test
+
+[ f ] [ "X" PH{ { "A" "B" } } at ] unit-test
+
+! We have to define these first so that they're compiled before
+! the below hashtables are parsed...
+<<
+
+TUPLE: hash-0-a ;
+
+M: hash-0-a hashcode* 2drop 0 ;
+
+TUPLE: hash-0-b ;
+
+M: hash-0-b hashcode* 2drop 0 ;
+
+>>
+
+[ ] [
+    PH{ }
+    "a" T{ hash-0-a } rot new-at
+    "b" T{ hash-0-b } rot new-at
+    "ph" set
+] unit-test
+
+[
+    H{
+        { T{ hash-0-a } "a" }
+        { T{ hash-0-b } "b" }
+    }
+] [ "ph" get >hashtable ] unit-test
+ 
+[
+    H{
+        { T{ hash-0-b } "b" }
+    }
+] [ "ph" get T{ hash-0-a } swap pluck-at >hashtable ] unit-test
+
+[
+    H{
+        { T{ hash-0-a } "a" }
+    }
+] [ "ph" get T{ hash-0-b } swap pluck-at >hashtable ] unit-test
+
+[
+    H{
+        { T{ hash-0-a } "a" }
+        { T{ hash-0-b } "b" }
+    }
+] [ "ph" get "X" swap pluck-at >hashtable ] unit-test
+
+[ ] [
+    PH{ }
+    "B" "A" rot new-at
+    "D" "C" rot new-at
+    "ph" set
+] unit-test
+
+[ H{ { "A" "B" } { "C" "D" } } ] [
+    "ph" get >hashtable
+] unit-test
+
+[ H{ { "C" "D" } } ] [
+    "ph" get "A" swap pluck-at >hashtable
+] unit-test
+
+[ H{ { "A" "B" } { "C" "D" } { "E" "F" } } ] [
+    "ph" get "F" "E" rot new-at >hashtable
+] unit-test
+
+[ H{ { "C" "D" } { "E" "F" } } ] [
+    "ph" get "F" "E" rot new-at "A" swap pluck-at >hashtable
+] unit-test
+
+: random-string ( -- str )
+    1000000 random ; ! [ CHAR: a CHAR: z [a,b] random ] "" replicate-as ;
+
+: random-assocs ( -- hash phash )
+    [ random-string ] replicate
+    [ H{ } clone [ '[ swap , set-at ] each-index ] keep ]
+    [ PH{ } clone swap [ spin new-at ] each-index ]
+    bi ;
+
+: ok? ( assoc1 assoc2 -- ? )
+    [ assoc= ] [ [ assoc-size ] bi@ = ] 2bi and ;
+
+: test-persistent-hashtables-1 ( n -- )
+    random-assocs ok? ;
+
+[ t ] [ 10 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 20 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 30 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 50 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 100 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 500 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 1000 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 5000 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 10000 test-persistent-hashtables-1 ] unit-test
+[ t ] [ 50000 test-persistent-hashtables-1 ] unit-test
+
+: test-persistent-hashtables-2 ( n -- )
+    random-assocs
+    dup keys [
+        [ nip over delete-at ] [ swap pluck-at nip ] 3bi
+        2dup ok?
+    ] all? 2nip ;
+
+[ t ] [ 6000 test-persistent-hashtables-2 ] unit-test
diff --git a/basis/persistent/hashtables/hashtables.factor b/basis/persistent/hashtables/hashtables.factor
new file mode 100644
index 0000000000..2e2be264bb
--- /dev/null
+++ b/basis/persistent/hashtables/hashtables.factor
@@ -0,0 +1,55 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: kernel math accessors assocs fry combinators parser
+prettyprint.backend namespaces
+persistent.assocs
+persistent.hashtables.nodes
+persistent.hashtables.nodes.empty
+persistent.hashtables.nodes.leaf
+persistent.hashtables.nodes.full
+persistent.hashtables.nodes.bitmap
+persistent.hashtables.nodes.collision ;
+IN: persistent.hashtables
+
+TUPLE: persistent-hash
+{ root read-only initial: empty-node }
+{ count fixnum read-only } ;
+
+M: persistent-hash assoc-size count>> ;
+
+M: persistent-hash at*
+     [ dup hashcode >fixnum ] [ root>> ] bi* (entry-at)
+     dup [ value>> t ] [ f ] if ;
+
+M: persistent-hash new-at ( value key assoc -- assoc' )
+    [
+        { [ 0 ] [ ] [ dup hashcode >fixnum ] [ root>> ] } spread
+        (new-at) 1 0 ?
+    ] [ count>> ] bi +
+    persistent-hash boa ;
+
+M: persistent-hash pluck-at
+    [ [ dup hashcode >fixnum ] [ root>> ] bi* (pluck-at) ] keep
+    {
+        { [ 2dup root>> eq? ] [ nip ] }
+        { [ over not ] [ 2drop T{ persistent-hash } ] }
+        [ count>> 1- persistent-hash boa ]
+    } cond ;
+
+M: persistent-hash >alist [ root>> >alist% ] { } make ;
+
+: >persistent-hash ( assoc -- phash )
+    T{ persistent-hash } swap [ spin new-at ] assoc-each ;
+
+M: persistent-hash equal?
+    over persistent-hash? [ assoc= ] [ 2drop f ] if ;
+
+M: persistent-hash hashcode* nip assoc-size ;
+
+M: persistent-hash clone ;
+
+: PH{ \ } [ >persistent-hash ] parse-literal ; parsing
+
+M: persistent-hash pprint-delims drop \ PH{ \ } ;
+M: persistent-hash >pprint-sequence >alist ;
+M: persistent-hash pprint* pprint-object ;
diff --git a/basis/persistent/hashtables/nodes/bitmap/bitmap.factor b/basis/persistent/hashtables/nodes/bitmap/bitmap.factor
new file mode 100644
index 0000000000..f231043274
--- /dev/null
+++ b/basis/persistent/hashtables/nodes/bitmap/bitmap.factor
@@ -0,0 +1,86 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: math math.bitwise arrays kernel accessors locals sequences
+sequences.private
+persistent.sequences
+persistent.hashtables.config
+persistent.hashtables.nodes ;
+IN: persistent.hashtables.nodes.bitmap
+
+: index ( bit bitmap -- n ) [ 1- ] dip bitand bit-count ; inline
+
+M:: bitmap-node (entry-at) ( key hashcode bitmap-node -- entry )
+    [let* | shift [ bitmap-node shift>> ]
+            bit [ hashcode shift bitpos ]
+            bitmap [ bitmap-node bitmap>> ]
+            nodes [ bitmap-node nodes>> ] |
+       bitmap bit bitand 0 eq? [ f ] [
+           key hashcode
+           bit bitmap index nodes nth-unsafe
+           (entry-at)
+        ] if
+    ] ;
+
+M:: bitmap-node (new-at) ( shift value key hashcode bitmap-node -- node' added-leaf )
+    [let* | shift [ bitmap-node shift>> ]
+            bit [ hashcode shift bitpos ]
+            bitmap [ bitmap-node bitmap>> ]
+            idx [ bit bitmap index ]
+            nodes [ bitmap-node nodes>> ] |
+        bitmap bit bitand 0 eq? [
+            [let | new-leaf [ value key hashcode <leaf-node> ] |
+                bitmap bit bitor
+                new-leaf idx nodes insert-nth
+                shift
+                <bitmap-node>
+                new-leaf
+            ]
+        ] [
+            [let | n [ idx nodes nth ] |
+                shift radix-bits + value key hashcode n (new-at)
+                [let | new-leaf [ ] n' [ ] |
+                    n n' eq? [
+                        bitmap-node
+                    ] [
+                        bitmap
+                        n' idx nodes new-nth
+                        shift
+                        <bitmap-node>
+                    ] if
+                    new-leaf
+                ]
+            ]
+        ] if
+    ] ;
+
+M:: bitmap-node (pluck-at) ( key hashcode bitmap-node -- node' )
+    [let | bit [ hashcode bitmap-node shift>> bitpos ]
+           bitmap [ bitmap-node bitmap>> ]
+           nodes [ bitmap-node nodes>> ]
+           shift [ bitmap-node shift>> ] |
+           bit bitmap bitand 0 eq? [ bitmap-node ] [
+            [let* | idx [ bit bitmap index ]
+                    n [ idx nodes nth-unsafe ]
+                    n' [ key hashcode n (pluck-at) ] |
+                n n' eq? [
+                    bitmap-node
+                ] [
+                    n' [
+                        bitmap
+                        n' idx nodes new-nth
+                        shift
+                        <bitmap-node>
+                    ] [
+                        bitmap bit eq? [ f ] [
+                            bitmap bit bitnot bitand
+                            idx nodes remove-nth
+                            shift
+                            <bitmap-node>
+                        ] if
+                    ] if
+                ] if
+            ]
+        ] if
+    ] ;
+
+M: bitmap-node >alist% ( node -- ) nodes>> >alist-each% ;
diff --git a/basis/persistent/hashtables/nodes/collision/collision.factor b/basis/persistent/hashtables/nodes/collision/collision.factor
new file mode 100644
index 0000000000..83003e5c47
--- /dev/null
+++ b/basis/persistent/hashtables/nodes/collision/collision.factor
@@ -0,0 +1,59 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: kernel accessors math arrays fry sequences
+locals persistent.sequences
+persistent.hashtables.config
+persistent.hashtables.nodes
+persistent.hashtables.nodes.leaf ;
+IN: persistent.hashtables.nodes.collision
+
+: find-index ( key hashcode collision-node -- n leaf-node )
+    leaves>> -rot '[ , , _ matching-key? ] find ; inline
+
+M:: collision-node (entry-at) ( key hashcode collision-node -- leaf-node )
+    key hashcode collision-node find-index nip ;
+
+M:: collision-node (pluck-at) ( key hashcode collision-node -- leaf-node )
+    hashcode collision-node hashcode>> eq? [
+        [let | idx [ key hashcode collision-node find-index drop ] |
+            idx [
+                idx collision-node leaves>> smash [
+                    collision-node hashcode>>
+                    <collision-node>
+                ] when
+            ] [ collision-node ] if
+        ]
+    ] [ collision-node ] if ;
+
+M:: collision-node (new-at) ( shift value key hashcode collision-node -- node' added-leaf )
+    hashcode collision-node hashcode>> eq? [
+        key hashcode collision-node find-index
+        [let | leaf-node [ ] idx [ ] |
+            idx [
+                value leaf-node value>> = [
+                    collision-node f
+                ] [
+                    hashcode
+                    value key hashcode <leaf-node>
+                    idx
+                    collision-node leaves>>
+                    new-nth
+                    <collision-node>
+                    f
+                ] if
+            ] [
+                [let | new-leaf-node [ value key hashcode <leaf-node> ] |
+                    hashcode
+                    collision-node leaves>>
+                    new-leaf-node
+                    suffix
+                    <collision-node>
+                    new-leaf-node
+                ]
+            ] if
+        ]
+    ] [
+        shift collision-node value key hashcode make-bitmap-node
+    ] if ;
+
+M: collision-node >alist% leaves>> >alist-each% ;
diff --git a/basis/persistent/hashtables/nodes/empty/empty.factor b/basis/persistent/hashtables/nodes/empty/empty.factor
new file mode 100644
index 0000000000..95a310acd9
--- /dev/null
+++ b/basis/persistent/hashtables/nodes/empty/empty.factor
@@ -0,0 +1,15 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: accessors kernel locals persistent.hashtables.nodes ;
+IN: persistent.hashtables.nodes.empty
+
+M: empty-node (entry-at) 3drop f ;
+
+M: empty-node (pluck-at) 2nip ;
+
+M:: empty-node (new-at) ( shift value key hashcode node -- node' added-leaf )
+    value key hashcode <leaf-node> dup ;
+
+M: empty-node >alist% drop ;
+
+M: empty-node hashcode>> drop 0 ;
diff --git a/basis/persistent/hashtables/nodes/full/full.factor b/basis/persistent/hashtables/nodes/full/full.factor
new file mode 100644
index 0000000000..5c60c91dca
--- /dev/null
+++ b/basis/persistent/hashtables/nodes/full/full.factor
@@ -0,0 +1,51 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: math accessors kernel arrays sequences sequences.private
+locals
+persistent.sequences
+persistent.hashtables.config
+persistent.hashtables.nodes ;
+IN: persistent.hashtables.nodes.full
+
+M:: full-node (new-at) ( shift value key hashcode full-node -- node' added-leaf )
+    [let* | nodes [ full-node nodes>> ] 
+            idx [ hashcode full-node shift>> mask ]
+            n [ idx nodes nth-unsafe ] |
+        shift radix-bits + value key hashcode n (new-at)
+        [let | new-leaf [ ] n' [ ] |
+            n n' eq? [
+                full-node
+            ] [
+                n' idx nodes new-nth shift <full-node>
+            ] if
+            new-leaf
+        ]
+    ] ;
+
+M:: full-node (pluck-at) ( key hashcode full-node -- node' )
+    [let* | idx [ hashcode full-node shift>> mask ]
+            n [ idx full-node nodes>> nth ]
+            n' [ key hashcode n (pluck-at) ] |
+        n n' eq? [
+            full-node
+        ] [
+            n' [
+                n' idx full-node nodes>> new-nth
+                full-node shift>>
+                <full-node>
+            ] [
+                hashcode full-node shift>> bitpos bitnot full-bitmap-mask bitand
+                idx full-node nodes>> remove-nth
+                full-node shift>>
+                <bitmap-node>
+            ] if
+        ] if
+    ] ;
+
+M:: full-node (entry-at) ( key hashcode full-node -- node' )
+    key hashcode
+    hashcode full-node shift>> mask
+    full-node nodes>> nth-unsafe
+    (entry-at) ;
+
+M: full-node >alist% nodes>> >alist-each% ;
diff --git a/basis/persistent/hashtables/nodes/leaf/leaf.factor b/basis/persistent/hashtables/nodes/leaf/leaf.factor
new file mode 100644
index 0000000000..7fa4cfe401
--- /dev/null
+++ b/basis/persistent/hashtables/nodes/leaf/leaf.factor
@@ -0,0 +1,28 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: kernel accessors locals math arrays namespaces
+persistent.hashtables.config
+persistent.hashtables.nodes ;
+IN: persistent.hashtables.nodes.leaf
+
+: matching-key? ( key hashcode leaf-node -- ? )
+    tuck hashcode>> eq? [ key>> = ] [ 2drop f ] if ; inline
+
+M: leaf-node (entry-at) [ matching-key? ] keep and ;
+
+M: leaf-node (pluck-at) [ matching-key? not ] keep and ;
+
+M:: leaf-node (new-at) ( shift value key hashcode leaf-node -- node' added-leaf )
+    hashcode leaf-node hashcode>> eq? [
+        key leaf-node key>> = [
+            value leaf-node value>> =
+            [ leaf-node f ] [ value key hashcode <leaf-node> f ] if
+        ] [
+            [let | new-leaf [ value key hashcode <leaf-node> ] |
+                hashcode leaf-node new-leaf 2array <collision-node>
+                new-leaf
+            ]
+        ] if
+    ] [ shift leaf-node value key hashcode make-bitmap-node ] if ;
+
+M: leaf-node >alist% [ key>> ] [ value>> ] bi 2array , ;
diff --git a/basis/persistent/hashtables/nodes/nodes.factor b/basis/persistent/hashtables/nodes/nodes.factor
new file mode 100644
index 0000000000..d681cd57fa
--- /dev/null
+++ b/basis/persistent/hashtables/nodes/nodes.factor
@@ -0,0 +1,64 @@
+! Based on Clojure's PersistentHashMap by Rich Hickey.
+
+USING: math arrays kernel sequences
+accessors locals persistent.hashtables.config ;
+IN: persistent.hashtables.nodes
+
+SINGLETON: empty-node
+
+TUPLE: leaf-node
+{ value read-only }
+{ key read-only }
+{ hashcode fixnum read-only } ;
+
+C: <leaf-node> leaf-node
+
+TUPLE: collision-node
+{ hashcode fixnum read-only }
+{ leaves array read-only } ;
+
+C: <collision-node> collision-node
+
+TUPLE: full-node
+{ nodes array read-only }
+{ shift fixnum read-only }
+{ hashcode fixnum read-only } ;
+
+: <full-node> ( nodes shift -- node )
+    over first hashcode>> full-node boa ;
+
+TUPLE: bitmap-node
+{ bitmap fixnum read-only }
+{ nodes array read-only }
+{ shift fixnum read-only }
+{ hashcode fixnum read-only } ;
+
+: <bitmap-node> ( bitmap nodes shift -- node )
+    pick full-bitmap-mask =
+    [ <full-node> nip ]
+    [ over first hashcode>> bitmap-node boa ] if ;
+
+GENERIC: (entry-at) ( key hashcode node -- entry )
+
+GENERIC: (new-at) ( shift value key hashcode node -- node' added-leaf )
+
+GENERIC: (pluck-at) ( key hashcode node -- node' )
+
+GENERIC: >alist% ( node -- )
+
+: >alist-each% ( nodes -- ) [ >alist% ] each ;
+
+: mask ( hash shift -- n ) neg shift radix-mask bitand ; inline
+
+: bitpos ( hash shift -- n ) mask 2^ ; inline
+
+: smash ( idx seq -- seq/elt ? )
+    dup length 2 = [ [ 1 = ] dip first2 ? f ] [ remove-nth t ] if ; inline
+
+:: make-bitmap-node ( shift branch value key hashcode -- node' added-leaf )
+    shift value key hashcode
+    branch hashcode>> shift bitpos
+    branch 1array
+    shift
+    <bitmap-node>
+    (new-at) ; inline
diff --git a/basis/persistent/hashtables/summary.txt b/basis/persistent/hashtables/summary.txt
new file mode 100644
index 0000000000..27321fa936
--- /dev/null
+++ b/basis/persistent/hashtables/summary.txt
@@ -0,0 +1 @@
+Persistent hashtables with O(1) insertion, removal and lookup
diff --git a/extra/tuple-arrays/tags.txt b/basis/persistent/hashtables/tags.txt
similarity index 100%
rename from extra/tuple-arrays/tags.txt
rename to basis/persistent/hashtables/tags.txt
diff --git a/extra/rss/authors.txt b/basis/persistent/heaps/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/rss/authors.txt
rename to basis/persistent/heaps/authors.txt
diff --git a/basis/persistent/heaps/heaps-docs.factor b/basis/persistent/heaps/heaps-docs.factor
new file mode 100644
index 0000000000..a56022a039
--- /dev/null
+++ b/basis/persistent/heaps/heaps-docs.factor
@@ -0,0 +1,58 @@
+USING: help.syntax help.markup kernel arrays assocs ;
+IN: persistent.heaps
+
+HELP: <persistent-heap>
+{ $values { "heap" "a persistent heap" } }
+{ $description "Creates a new persistent heap" } ;
+
+HELP: <singleton-heap>
+{ $values { "value" object } { "prio" "a priority" } { "heap" "a persistent heap" } }
+{ $description "Creates a new persistent heap consisting of one object with the given priority." } ;
+
+HELP: pheap-empty?
+{ $values { "heap" "a persistent heap" } { "?" "a boolean" } }
+{ $description "Returns true if this is an empty persistent heap." } ;
+
+HELP: pheap-peek
+{ $values { "heap" "a persistent heap" } { "value" "an object in the heap" } { "prio" "the minimum priority" } }
+{ $description "Gets the object in the heap with minumum priority." } ;
+
+HELP: pheap-push
+{ $values { "heap" "a persistent heap" } { "value" object } { "prio" "a priority" } { "newheap" "a new persistent heap" } }
+{ $description "Creates a new persistent heap also containing the given object of the given priority." } ;
+
+HELP: pheap-pop*
+{ $values { "heap" "a persistent heap" } { "newheap" "a new persistent heap" } }
+{ $description "Creates a new persistent heap with the minimum element removed." } ;
+
+HELP: pheap-pop
+{ $values { "heap" "a persistent heap" } { "newheap" "a new persistent heap" } { "value" object } { "prio" "a priority" } }
+{ $description "Creates a new persistent heap with the minimum element removed, returning that element and its priority." } ;
+
+HELP: assoc>pheap
+{ $values { "assoc" assoc } { "heap" "a persistent heap" } }
+{ $description "Creates a new persistent heap from an associative mapping whose keys are the entries in the heap and whose values are the associated priorities." } ;
+
+HELP: pheap>alist
+{ $values { "heap" "a persistent heap" } { "alist" "an association list" } }
+{ $description "Creates an association list whose keys are the entries in the heap and whose values are the associated priorities. It is in sorted order by priority. This does not modify the heap." } ;
+
+HELP: pheap>values
+{ $values { "heap" "a persistent heap" } { "seq" array } }
+{ $description "Creates an an array of all of the values in the heap, in sorted order by priority. This does not modify the heap." } ;
+
+ARTICLE: "persistent-heaps" "Persistent heaps"
+"This vocabulary implements persistent minheaps, aka priority queues. They are purely functional and support efficient O(log n) operations of pushing and popping, with O(1) time access to the minimum element. To create heaps, use the following words:"
+{ $subsection <persistent-heap> }
+{ $subsection <singleton-heap> }
+"To manipulate them:"
+{ $subsection pheap-peek }
+{ $subsection pheap-push }
+{ $subsection pheap-pop }
+{ $subsection pheap-pop* }
+{ $subsection pheap-empty? }
+{ $subsection assoc>pheap }
+{ $subsection pheap>alist }
+{ $subsection pheap>values } ;
+
+ABOUT: "persistent-heaps"
diff --git a/basis/persistent/heaps/heaps-tests.factor b/basis/persistent/heaps/heaps-tests.factor
new file mode 100644
index 0000000000..cecd6dab53
--- /dev/null
+++ b/basis/persistent/heaps/heaps-tests.factor
@@ -0,0 +1,11 @@
+USING: persistent.heaps tools.test ;
+IN: persistent.heaps.tests
+
+: test-input
+    { { "hello" 3 } { "goodbye" 2 } { "whatever" 5 }
+      { "foo" 1 } { "bar" -1 } { "baz" -7 } { "bing" 0 } } ;
+
+[
+    { { "baz" -7 } { "bar" -1 } { "bing" 0 } { "foo" 1 }
+      { "goodbye" 2 } { "hello" 3 } { "whatever" 5 } }
+] [ test-input assoc>pheap pheap>alist ] unit-test
diff --git a/basis/persistent/heaps/heaps.factor b/basis/persistent/heaps/heaps.factor
new file mode 100644
index 0000000000..6381b91dc3
--- /dev/null
+++ b/basis/persistent/heaps/heaps.factor
@@ -0,0 +1,103 @@
+USING: kernel accessors locals combinators math arrays
+assocs namespaces sequences ;
+IN: persistent.heaps
+! These are minheaps
+
+<PRIVATE
+TUPLE: branch value prio left right ;
+TUPLE: empty-heap ;
+
+PREDICATE: singleton-heap < branch
+    [ left>> ] [ right>> ] bi [ empty-heap? ] both? ;
+
+C: <branch> branch
+: >branch< ( branch -- value prio left right )
+    { [ value>> ] [ prio>> ] [ left>> ] [ right>> ] } cleave ;
+PRIVATE>
+
+: <persistent-heap> ( -- heap ) T{ empty-heap } ;
+
+: <singleton-heap> ( value prio -- heap )
+    <persistent-heap> <persistent-heap> <branch> ;
+
+: pheap-empty? ( heap -- ? ) empty-heap? ;
+
+: empty-pheap ( -- * )
+    "Attempt to delete from an empty heap" throw ;
+
+<PRIVATE
+: remove-left ( heap -- value prio newheap )
+    dup [ left>> ] [ right>> ] bi [ pheap-empty? ] both?
+    [ [ value>> ] [ prio>> ] bi <persistent-heap> ]
+    [ >branch< swap remove-left -rot [ <branch> ] 2dip rot ] if ;
+
+: both-with? ( obj a b quot -- ? )
+   swap >r with r> swap both? ; inline
+
+GENERIC: sift-down ( value prio left right -- heap )
+
+: singleton-sift-down ( value prio singleton empty -- heap )
+    3dup drop prio>> <= [ <branch> ] [
+        drop -rot [ [ value>> ] [ prio>> ] bi ] 2dip
+        <singleton-heap> <persistent-heap> <branch>
+    ] if ;
+
+M: empty-heap sift-down 
+    over singleton-heap? [ singleton-sift-down ] [ <branch> ] if ;
+
+:: reroot-left ( value prio left right -- heap )
+    left value>> left prio>>
+    value prio left left>> left right>> sift-down
+    right <branch> ;
+
+:: reroot-right ( value prio left right -- heap )
+    right value>> right prio>> left
+    value prio right left>> right right>> sift-down
+    <branch> ;
+
+M: branch sift-down ! both arguments are branches
+    3dup [ prio>> <= ] both-with? [ <branch> ] [
+        2dup [ prio>> ] bi@ <= [ reroot-left ] [ reroot-right ] if
+    ] if ;
+PRIVATE>
+
+GENERIC: pheap-peek ( heap -- value prio )
+M: empty-heap pheap-peek empty-pheap ;
+M: branch pheap-peek [ value>> ] [ prio>> ] bi ;
+
+GENERIC: pheap-push ( value prio heap -- newheap )
+
+M: empty-heap pheap-push
+    drop <singleton-heap> ;
+
+<PRIVATE
+: push-top ( value prio heap -- newheap )
+    [ [ value>> ] [ prio>> ] [ right>> ] tri pheap-push ]
+    [ left>> ] bi <branch> ;
+
+: push-in ( value prio heap -- newheap )
+    [ 2nip [ value>> ] [ prio>> ] bi ]
+    [ right>> pheap-push ]
+    [ 2nip left>> ] 3tri <branch> ;
+PRIVATE>
+
+M: branch pheap-push
+    2dup prio>> <= [ push-top ] [ push-in ] if ;
+
+: pheap-pop* ( heap -- newheap )
+    dup pheap-empty? [ empty-pheap ] [
+        dup left>> pheap-empty?
+        [ drop <persistent-heap> ]
+        [ [ left>> remove-left ] keep right>> swap sift-down ] if
+    ] if ;
+
+: pheap-pop ( heap -- newheap value prio )
+    [ pheap-pop* ] [ pheap-peek ] bi ;
+
+: assoc>pheap ( assoc -- heap ) ! Assoc is value => prio
+    <persistent-heap> swap [ rot pheap-push ] assoc-each ;
+
+: pheap>alist ( heap -- alist )
+    [ dup pheap-empty? not ] [ pheap-pop 2array ] [ ] produce nip ;
+
+: pheap>values ( heap -- seq ) pheap>alist keys ;
diff --git a/basis/persistent/heaps/summary.txt b/basis/persistent/heaps/summary.txt
new file mode 100644
index 0000000000..1451439c65
--- /dev/null
+++ b/basis/persistent/heaps/summary.txt
@@ -0,0 +1 @@
+Datastructure for functional peristent heaps, from ML for the Working Programmer
diff --git a/unmaintained/isequences/tags.txt b/basis/persistent/heaps/tags.txt
similarity index 100%
rename from unmaintained/isequences/tags.txt
rename to basis/persistent/heaps/tags.txt
diff --git a/extra/io/unix/epoll/authors.txt b/basis/persistent/sequences/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/unix/epoll/authors.txt
rename to basis/persistent/sequences/authors.txt
diff --git a/basis/persistent/sequences/sequences-docs.factor b/basis/persistent/sequences/sequences-docs.factor
new file mode 100644
index 0000000000..986b16c737
--- /dev/null
+++ b/basis/persistent/sequences/sequences-docs.factor
@@ -0,0 +1,23 @@
+IN: persistent.sequences
+USING: help.markup help.syntax math sequences kernel ;
+
+HELP: new-nth
+{ $values { "val" object } { "i" integer } { "seq" sequence } { "seq'" sequence } }
+{ $contract "Persistent analogue of " { $link set-nth } ". Outputs a new sequence with the " { $snippet "i" } "th element replaced by " { $snippet "val" } "." } ;
+
+HELP: ppush
+{ $values { "val" object } { "seq" sequence } { "seq'" sequence } }
+{ $contract "Persistent analogue of " { $link push } ". Outputs a new sequence with all elements of " { $snippet "seq" } " together with " { $snippet "val" } " added at the end." } ;
+
+HELP: ppop
+{ $values { "seq" sequence } { "seq'" sequence } }
+{ $contract "Persistent analogue of " { $link pop* } ". Outputs a new sequence with all elements of " { $snippet "seq" } " except for the final element." } ;
+
+ARTICLE: "persistent.sequences" "Persistent sequence protocol"
+"The persistent sequence protocol consists of the non-mutating sequence protocol words, such as  " { $link length } " and " { $link nth } ", together with the following operations:"
+{ $subsection new-nth }
+{ $subsection ppush }
+{ $subsection ppop }
+"The default implementations of the above run in " { $snippet "O(n)" } " time; the " { $vocab-link "persistent.vectors" } " vocabulary provides an implementation of these operations in " { $snippet "O(1)" } " time." ;
+
+ABOUT: "persistent.sequences"
diff --git a/basis/persistent/sequences/sequences.factor b/basis/persistent/sequences/sequences.factor
new file mode 100644
index 0000000000..961e8bfce7
--- /dev/null
+++ b/basis/persistent/sequences/sequences.factor
@@ -0,0 +1,16 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences kernel ;
+IN: persistent.sequences
+
+GENERIC: ppush ( val seq -- seq' )
+
+M: sequence ppush swap suffix ;
+
+GENERIC: ppop ( seq -- seq' )
+
+M: sequence ppop 1 head* ;
+
+GENERIC: new-nth ( val i seq -- seq' )
+
+M: sequence new-nth clone [ set-nth ] keep ;
diff --git a/basis/persistent/sequences/summary.txt b/basis/persistent/sequences/summary.txt
new file mode 100644
index 0000000000..a2184274d6
--- /dev/null
+++ b/basis/persistent/sequences/summary.txt
@@ -0,0 +1 @@
+Persistent sequence protocol
diff --git a/basis/persistent/sequences/tags.txt b/basis/persistent/sequences/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/persistent/sequences/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/io/unix/files/authors.txt b/basis/persistent/vectors/authors.txt
similarity index 100%
rename from extra/io/unix/files/authors.txt
rename to basis/persistent/vectors/authors.txt
diff --git a/basis/persistent/vectors/summary.txt b/basis/persistent/vectors/summary.txt
new file mode 100644
index 0000000000..e190af57eb
--- /dev/null
+++ b/basis/persistent/vectors/summary.txt
@@ -0,0 +1 @@
+Immutable vectors with O(log_32 n) random access, push, and pop
diff --git a/basis/persistent/vectors/tags.txt b/basis/persistent/vectors/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/persistent/vectors/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/basis/persistent/vectors/vectors-docs.factor b/basis/persistent/vectors/vectors-docs.factor
new file mode 100644
index 0000000000..4816877a35
--- /dev/null
+++ b/basis/persistent/vectors/vectors-docs.factor
@@ -0,0 +1,28 @@
+USING: help.markup help.syntax kernel math sequences ;
+IN: persistent.vectors
+
+HELP: PV{
+{ $syntax "elements... }" }
+{ $description "Parses a literal " { $link persistent-vector } "." } ;
+
+HELP: >persistent-vector
+{ $values { "seq" sequence } { "pvec" persistent-vector } }
+{ $description "Creates a " { $link persistent-vector } " with the same elements as " { $snippet "seq" } "." } ;
+
+HELP: persistent-vector
+{ $class-description "The class of persistent vectors." } ;
+
+ARTICLE: "persistent.vectors" "Persistent vectors"
+"A " { $emphasis "persistent vector" } " differs from an ordinary vector (" { $link "vectors" } ") in that it is immutable, and all operations yield new persistent vectors instead of modifying inputs. Unlike immutable operations on ordinary sequences, persistent vector operations are efficient and run in sub-linear time."
+$nl
+"The class of persistent vectors:"
+{ $subsection persistent-vector }
+"Converting a sequence into a persistent vector:"
+{ $subsection >persistent-vector }
+"Persistent vectors have a literal syntax:"
+{ $subsection POSTPONE: PV{ }
+"The empty persistent vector, written " { $snippet "PV{ }" } ", is used for building up all other persistent vectors."
+$nl
+"This implementation of persistent vectors is based on the " { $snippet "clojure.lang.PersistentVector" } " class from Rich Hickey's Clojure language for the JVM (" { $url "http://clojure.org" } ")." ;
+
+ABOUT: "persistent.vectors"
diff --git a/basis/persistent/vectors/vectors-tests.factor b/basis/persistent/vectors/vectors-tests.factor
new file mode 100644
index 0000000000..c232db8533
--- /dev/null
+++ b/basis/persistent/vectors/vectors-tests.factor
@@ -0,0 +1,78 @@
+IN: persistent-vectors.tests
+USING: accessors tools.test persistent.vectors
+persistent.sequences sequences kernel arrays random namespaces
+vectors math math.order ;
+
+\ new-nth must-infer
+\ ppush must-infer
+\ ppop must-infer
+
+[ 0 ] [ PV{ } length ] unit-test
+
+[ 1 ] [ 3 PV{ } ppush length ] unit-test
+
+[ 3 ] [ 3 PV{ } ppush first ] unit-test
+
+[ PV{ 3 1 3 3 7 } ] [
+    PV{ } { 3 1 3 3 7 } [ swap ppush ] each
+] unit-test
+
+[ { 3 1 3 3 7 } ] [
+    PV{ } { 3 1 3 3 7 } [ swap ppush ] each >array
+] unit-test
+
+{ 100 1060 2000 10000 100000 1000000 } [
+    [ t ] swap [ dup >persistent-vector sequence= ] curry unit-test
+] each
+
+[ ] [ 10000 [ 16 random-bits ] PV{ } replicate-as "1" set ] unit-test
+[ ] [ "1" get >vector "2" set ] unit-test
+
+[ t ] [
+    3000 [
+        drop
+        16 random-bits 10000 random
+        [ "1" [ new-nth ] change ]
+        [ "2" [ new-nth ] change ] 2bi
+        "1" get "2" get sequence=
+    ] all?
+] unit-test
+
+[ PV{ } ppop ] [ empty-error? ] must-fail-with
+
+[ t ] [ PV{ 3 } ppop empty? ] unit-test
+
+[ PV{ 3 7 } ] [ PV{ 3 7 6 } ppop ] unit-test
+
+[ PV{ 3 7 6 5 } ] [ 5 PV{ 3 7 6 } ppush ] unit-test
+
+[ ] [ PV{ } "1" set ] unit-test
+[ ] [ V{ } clone "2" set ] unit-test
+
+: push/pop-test ( vec -- vec' ) 3 swap ppush 3 swap ppush ppop ;
+
+[ ] [ PV{ } 10000 [ push/pop-test ] times drop ] unit-test
+
+[ PV{ } ] [
+    PV{ }
+    10000 [ 1 swap ppush ] times
+    10000 [ ppop ] times
+] unit-test
+
+[ t ] [
+    10000 >persistent-vector 752 [ ppop ] times dup length sequence=
+] unit-test
+
+[ t ] [
+    100 [
+        drop
+        100 random [
+            16 random-bits [ "1" [ ppush ] change ] [ "2" get push ] bi
+        ] times
+        100 random "1" get length min [
+            "1" [ ppop ] change
+            "2" get pop*
+        ] times
+        "1" get "2" get sequence=
+    ] all?
+] unit-test
diff --git a/basis/persistent/vectors/vectors.factor b/basis/persistent/vectors/vectors.factor
new file mode 100644
index 0000000000..92b3f82a54
--- /dev/null
+++ b/basis/persistent/vectors/vectors.factor
@@ -0,0 +1,188 @@
+! Based on Clojure's PersistentVector by Rich Hickey.
+
+USING: math accessors kernel sequences.private sequences arrays
+combinators combinators.short-circuit parser prettyprint.backend
+persistent.sequences ;
+IN: persistent.vectors
+
+<PRIVATE
+
+TUPLE: node { children array } { level fixnum } ;
+
+PRIVATE>
+
+ERROR: empty-error pvec ;
+
+TUPLE: persistent-vector
+{ count fixnum }
+{ root node initial: T{ node f { } 1 } }
+{ tail node initial: T{ node f { } 0 } } ;
+
+M: persistent-vector length count>> ;
+
+: node-size 32 ; inline
+
+: node-mask node-size mod ; inline
+
+: node-shift -5 * shift ; inline
+
+: node-nth ( i node -- obj )
+    [ node-mask ] [ children>> ] bi* nth ;
+
+: body-nth ( i node -- i node' )
+    dup level>> [
+        dupd [ level>> node-shift ] keep node-nth
+    ] times ;
+
+: tail-offset ( pvec -- n )
+    [ count>> ] [ tail>> children>> length ] bi - ;
+
+M: persistent-vector nth-unsafe
+    2dup tail-offset >=
+    [ tail>> ] [ root>> body-nth ] if
+    node-nth ;
+
+: node-add ( val node -- node' )
+    clone [ ppush ] change-children ;
+
+: ppush-tail ( val pvec -- pvec' )
+    [ node-add ] change-tail ;
+
+: full? ( node -- ? )
+    children>> length node-size = ;
+
+: 1node ( val level -- node )
+    [ 1array ] dip node boa ;
+
+: 2node ( first second -- node )
+    [ 2array ] [ drop level>> 1+ ] 2bi node boa ;
+
+: new-child ( new-child node -- node' expansion/f )
+    dup full? [ tuck level>> 1node ] [ node-add f ] if ;
+
+: new-last ( val seq -- seq' )
+    [ length 1- ] keep new-nth ;
+
+: node-set-last ( child node -- node' )
+    clone [ new-last ] change-children ;
+
+: (ppush-new-tail) ( tail node -- node' expansion/f )
+    dup level>> 1 = [
+        new-child
+    ] [
+        tuck children>> peek (ppush-new-tail)
+        [ swap new-child ] [ swap node-set-last f ] ?if
+    ] if ;
+
+: do-expansion ( pvec root expansion/f -- pvec )
+    [ 2node ] when* >>root ;
+
+: ppush-new-tail ( val pvec -- pvec' )
+    [ ] [ tail>> ] [ root>> ] tri
+    (ppush-new-tail) do-expansion
+    swap 0 1node >>tail ;
+
+M: persistent-vector ppush ( val pvec -- pvec' )
+    clone
+    dup tail>> full?
+    [ ppush-new-tail ] [ ppush-tail ] if
+    [ 1+ ] change-count ;
+
+: node-set-nth ( val i node -- node' )
+    clone [ new-nth ] change-children ;
+
+: node-change-nth ( i node quot -- node' )
+    [ clone ] dip [
+        [ clone ] dip [ change-nth ] 2keep drop
+    ] curry change-children ; inline
+
+: (new-nth) ( val i node -- node' )
+    dup level>> 0 = [
+        [ node-mask ] dip node-set-nth
+    ] [
+        [ dupd level>> node-shift node-mask ] keep
+        [ (new-nth) ] node-change-nth
+    ] if ;
+
+M: persistent-vector new-nth ( obj i pvec -- pvec' )
+    2dup count>> = [ nip ppush ] [
+        clone
+        2dup tail-offset >= [
+            [ node-mask ] dip
+            [ node-set-nth ] change-tail
+        ] [
+            [ (new-nth) ] change-root
+        ] if
+    ] if ;
+
+! The pop code is really convoluted. I don't understand Rich Hickey's
+! original code. It uses a 'Box' out parameter which is passed around
+! inside a recursive function, and gets mutated along the way to boot.
+! Super-confusing.
+: ppop-tail ( pvec -- pvec' )
+    [ clone [ ppop ] change-children ] change-tail ;
+
+: (ppop-contraction) ( node -- node' tail' )
+    clone [ unclip-last swap ] change-children swap ;
+
+: ppop-contraction ( node -- node' tail' )
+    dup children>> length 1 =
+    [ children>> peek f swap ]
+    [ (ppop-contraction) ]
+    if ;
+
+: (ppop-new-tail) ( root -- root' tail' )
+    dup level>> 1 > [
+        dup children>> peek (ppop-new-tail) [
+            dup
+            [ swap node-set-last ]
+            [ drop ppop-contraction drop ]
+            if
+        ] dip
+    ] [
+        ppop-contraction
+    ] if ;
+
+: trivial? ( node -- ? )
+    { [ level>> 1 > ] [ children>> length 1 = ] } 1&& ;
+
+: ppop-new-tail ( pvec -- pvec' )
+    dup root>> (ppop-new-tail) [
+        {
+            { [ dup not ] [ drop T{ node f { } 1 } ] }
+            { [ dup trivial? ] [ children>> first ] }
+            [ ]
+        } cond
+    ] dip [ >>root ] [ >>tail ] bi* ;
+
+PRIVATE>
+
+M: persistent-vector ppop ( pvec -- pvec' )
+    dup count>> {
+        { 0 [ empty-error ] }
+        { 1 [ drop T{ persistent-vector } ] }
+        [
+            [
+                clone
+                dup tail>> children>> length 1 >
+                [ ppop-tail ] [ ppop-new-tail ] if
+            ] dip 1- >>count
+        ]
+    } case ;
+
+M: persistent-vector like
+    drop T{ persistent-vector } [ swap ppush ] reduce ;
+
+M: persistent-vector equal?
+    over persistent-vector? [ sequence= ] [ 2drop f ] if ;
+
+: >persistent-vector ( seq -- pvec )
+    T{ persistent-vector } like ;
+
+: PV{ \ } [ >persistent-vector ] parse-literal ; parsing
+
+M: persistent-vector pprint-delims drop \ PV{ \ } ;
+M: persistent-vector >pprint-sequence ;
+M: persistent-vector pprint* pprint-object ;
+
+INSTANCE: persistent-vector immutable-sequence
diff --git a/basis/present/present.factor b/basis/present/present.factor
new file mode 100644
index 0000000000..519e995fe5
--- /dev/null
+++ b/basis/present/present.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors math math.parser calendar calendar.format
+strings words kernel effects ;
+IN: present
+
+GENERIC: present ( object -- string )
+
+M: real present number>string ;
+
+M: timestamp present timestamp>string ;
+
+M: string present ;
+
+M: word present name>> ;
+
+M: effect present effect>string ;
+
+M: f present drop "" ;
diff --git a/extra/io/unix/kqueue/authors.txt b/basis/prettyprint/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/unix/kqueue/authors.txt
rename to basis/prettyprint/authors.txt
diff --git a/extra/io/unix/launcher/authors.txt b/basis/prettyprint/backend/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/unix/launcher/authors.txt
rename to basis/prettyprint/backend/authors.txt
diff --git a/core/prettyprint/backend/backend-docs.factor b/basis/prettyprint/backend/backend-docs.factor
similarity index 92%
rename from core/prettyprint/backend/backend-docs.factor
rename to basis/prettyprint/backend/backend-docs.factor
index c6eff28d08..cc4f5cedb5 100755
--- a/core/prettyprint/backend/backend-docs.factor
+++ b/basis/prettyprint/backend/backend-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax io kernel prettyprint
+USING: help.markup help.syntax io kernel
 prettyprint.config prettyprint.sections words strings ;
 IN: prettyprint.backend
 
@@ -24,7 +24,7 @@ HELP: unparse-ch
 
 HELP: do-string-limit
 { $values { "str" string } { "trimmed" "a possibly trimmed string" } }
-{ $description "If " { $link string-limit } " is on, trims the string such that it does not exceed the margin, appending \"...\" if trimming took place." } ;
+{ $description "If " { $link string-limit? } " is on, trims the string such that it does not exceed the margin, appending \"...\" if trimming took place." } ;
 
 HELP: pprint-string
 { $values { "obj" object } { "str" string } { "prefix" string } { "suffix" string } }
diff --git a/core/prettyprint/backend/backend.factor b/basis/prettyprint/backend/backend.factor
similarity index 71%
rename from core/prettyprint/backend/backend.factor
rename to basis/prettyprint/backend/backend.factor
index f992b9ca01..c2fd94e5cf 100755
--- a/core/prettyprint/backend/backend.factor
+++ b/basis/prettyprint/backend/backend.factor
@@ -1,15 +1,17 @@
 ! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays byte-arrays byte-vectors bit-arrays generic
+USING: accessors arrays byte-arrays byte-vectors generic
 hashtables io assocs kernel math namespaces sequences strings
 sbufs io.styles vectors words prettyprint.config
 prettyprint.sections quotations io io.files math.parser effects
 classes.tuple math.order classes.tuple.private classes
-float-arrays ;
+combinators colors ;
 IN: prettyprint.backend
 
 GENERIC: pprint* ( obj -- )
 
+M: effect pprint* effect>string "(" swap ")" 3append text ;
+
 : ?effect-height ( word -- n )
     stack-effect [ effect-height ] [ 0 ] if* ;
 
@@ -26,14 +28,16 @@ GENERIC: pprint* ( obj -- )
 : word-style ( word -- style )
     dup "word-style" word-prop >hashtable [
         [
-            dup presented set
-            dup parsing? over delimiter? rot t eq? or or
-            [ bold font-style set ] when
+            [ presented set ]
+            [
+                [ parsing-word? ] [ delimiter? ] [ t eq? ] tri or or
+                [ bold font-style set ] when
+            ] bi
         ] bind
     ] keep ;
 
 : word-name* ( word -- str )
-    word-name "( no name )" or ;
+    name>> "( no name )" or ;
 
 : pprint-word ( word -- )
     dup record-vocab
@@ -43,13 +47,16 @@ GENERIC: pprint* ( obj -- )
     <block swap pprint-word call block> ; inline
 
 M: word pprint*
-    dup parsing? [
+    dup parsing-word? [
         \ POSTPONE: [ pprint-word ] pprint-prefix
     ] [
-        dup "break-before" word-prop line-break
-        dup pprint-word
-        dup ?start-group dup ?end-group
-        "break-after" word-prop line-break
+        {
+            [ "break-before" word-prop line-break ]
+            [ pprint-word ]
+            [ ?start-group ]
+            [ ?end-group ]
+            [ "break-after" word-prop line-break ]
+        } cleave
     ] if ;
 
 M: real pprint* number>string text ;
@@ -73,7 +80,7 @@ M: f pprint* drop \ f pprint-word ;
     dup ch>ascii-escape [ "\\" % ] [ ] ?if , ;
 
 : do-string-limit ( str -- trimmed )
-    string-limit get [
+    string-limit? get [
         dup length margin get > [
             margin get 3 - head "..." append
         ] when
@@ -82,7 +89,7 @@ M: f pprint* drop \ f pprint-word ;
 : string-style ( obj -- hash )
     [
         presented set
-        { 0.3 0.3 0.3 1.0 } foreground set
+        T{ rgba f 0.3 0.3 0.3 1.0 } foreground set
     ] H{ } make-assoc ;
 
 : unparse-string ( str prefix suffix -- str )
@@ -98,7 +105,7 @@ M: sbuf pprint*
     dup "SBUF\" " "\"" pprint-string ;
 
 M: pathname pprint*
-    dup pathname-string "P\" " "\"" pprint-string ;
+    dup string>> "P\" " "\"" pprint-string ;
 
 ! Sequences
 : nesting-limit? ( -- ? )
@@ -110,7 +117,7 @@ M: pathname pprint*
 : check-recursion ( obj quot -- )
     nesting-limit? [
         drop
-        "~" over class word-name "~" 3append
+        "~" over class name>> "~" 3append
         swap present-text
     ] [
         over recursion-check get memq? [
@@ -122,6 +129,30 @@ M: pathname pprint*
         ] if
     ] if ; inline
 
+: tuple>assoc ( tuple -- assoc )
+    [ class all-slots ] [ tuple-slots ] bi zip
+    [ [ initial>> ] dip = not ] assoc-filter
+    [ [ name>> ] dip ] assoc-map ;
+
+: pprint-slot-value ( name value -- )
+    <flow \ { pprint-word
+    [ text ] [ f <inset pprint* block> ] bi*
+    \ } pprint-word block> ;
+
+M: tuple pprint*
+    boa-tuples? get [ call-next-method ] [
+        [
+            <flow
+            \ T{ pprint-word
+            dup class pprint-word
+            t <inset
+            tuple>assoc [ pprint-slot-value ] assoc-each
+            block>
+            \ } pprint-word
+            block>
+        ] check-recursion
+    ] if ;
+
 : do-length-limit ( seq -- trimmed n/f )
     length-limit get dup [
         over length over [-]
@@ -140,9 +171,7 @@ M: curry pprint-delims drop \ [ \ ] ;
 M: compose pprint-delims drop \ [ \ ] ;
 M: array pprint-delims drop \ { \ } ;
 M: byte-array pprint-delims drop \ B{ \ } ;
-M: bit-array pprint-delims drop \ ?{ \ } ;
 M: byte-vector pprint-delims drop \ BV{ \ } ;
-M: float-array pprint-delims drop \ F{ \ } ;
 M: vector pprint-delims drop \ V{ \ } ;
 M: hashtable pprint-delims drop \ H{ \ } ;
 M: tuple pprint-delims drop \ T{ \ } ;
@@ -158,10 +187,13 @@ M: byte-vector >pprint-sequence ;
 M: curry >pprint-sequence ;
 M: compose >pprint-sequence ;
 M: hashtable >pprint-sequence >alist ;
-M: tuple >pprint-sequence tuple>array ;
-M: wrapper >pprint-sequence wrapped 1array ;
+M: wrapper >pprint-sequence wrapped>> 1array ;
 M: callstack >pprint-sequence callstack>array ;
 
+M: tuple >pprint-sequence
+    [ class ] [ tuple-slots ] bi
+    [ 1array ] [ [ f 2array ] dip append ] if-empty ;
+
 GENERIC: pprint-narrow? ( obj -- ? )
 
 M: object pprint-narrow? drop f ;
@@ -181,21 +213,23 @@ M: tuple pprint-narrow? drop t ;
     ] check-recursion ;
 
 M: object pprint* pprint-object ;
+M: vector pprint* pprint-object ;
+M: hashtable pprint* pprint-object ;
 
 M: curry pprint*
-    dup curry-quot callable? [ pprint-object ] [
+    dup quot>> callable? [ pprint-object ] [
         "( invalid curry )" swap present-text
     ] if ;
 
 M: compose pprint*
-    dup compose-first over compose-second [ callable? ] both?
+    dup [ first>> callable? ] [ second>> callable? ] bi and
     [ pprint-object ] [
         "( invalid compose )" swap present-text
     ] if ;
 
 M: wrapper pprint*
-    dup wrapped word? [
-        <block \ \ pprint-word wrapped pprint-word block>
+    dup wrapped>> word? [
+        <block \ \ pprint-word wrapped>> pprint-word block>
     ] [
         pprint-object
     ] if ;
diff --git a/core/prettyprint/backend/summary.txt b/basis/prettyprint/backend/summary.txt
similarity index 100%
rename from core/prettyprint/backend/summary.txt
rename to basis/prettyprint/backend/summary.txt
diff --git a/extra/io/unix/linux/authors.txt b/basis/prettyprint/config/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/unix/linux/authors.txt
rename to basis/prettyprint/config/authors.txt
diff --git a/core/prettyprint/config/config-docs.factor b/basis/prettyprint/config/config-docs.factor
similarity index 81%
rename from core/prettyprint/config/config-docs.factor
rename to basis/prettyprint/config/config-docs.factor
index 1a2fd69949..dda565d5c9 100644
--- a/core/prettyprint/config/config-docs.factor
+++ b/basis/prettyprint/config/config-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax io kernel prettyprint
+USING: help.markup help.syntax io kernel
 prettyprint.sections words ;
 IN: prettyprint.config
 
@@ -19,5 +19,9 @@ HELP: length-limit
 HELP: line-limit
 { $var-description "The maximum number of lines output by the prettyprinter before output is truncated with \"...\". The default is " { $link f } ", denoting unlimited line count." } ;
 
-HELP: string-limit
+HELP: string-limit?
 { $var-description "Toggles whether printed strings are truncated to the margin." } ;
+
+HELP: boa-tuples?
+{ $var-description "Toggles whether tuples print in BOA-form or assoc-form." }
+{ $notes "See " { $link POSTPONE: T{ } " for a description of both literal tuple forms." } ;
diff --git a/core/prettyprint/config/config.factor b/basis/prettyprint/config/config.factor
similarity index 69%
rename from core/prettyprint/config/config.factor
rename to basis/prettyprint/config/config.factor
index 6a649bc5a6..d986791f94 100644
--- a/core/prettyprint/config/config.factor
+++ b/basis/prettyprint/config/config.factor
@@ -1,9 +1,9 @@
-! Copyright (C) 2003, 2007 Slava Pestov.
+! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-IN: prettyprint.config
 USING: arrays generic assocs io kernel math
 namespaces sequences strings io.styles vectors words
 continuations ;
+IN: prettyprint.config
 
 ! Configuration
 SYMBOL: tab-size
@@ -11,10 +11,8 @@ SYMBOL: margin
 SYMBOL: nesting-limit
 SYMBOL: length-limit
 SYMBOL: line-limit
-SYMBOL: string-limit
+SYMBOL: string-limit?
+SYMBOL: boa-tuples?
 
-global [
-    4 tab-size set
-    64 margin set
-    string-limit off
-] bind
+4 tab-size set-global
+64 margin set-global
diff --git a/core/prettyprint/config/summary.txt b/basis/prettyprint/config/summary.txt
similarity index 100%
rename from core/prettyprint/config/summary.txt
rename to basis/prettyprint/config/summary.txt
diff --git a/core/prettyprint/prettyprint-docs.factor b/basis/prettyprint/prettyprint-docs.factor
similarity index 96%
rename from core/prettyprint/prettyprint-docs.factor
rename to basis/prettyprint/prettyprint-docs.factor
index f7f0f7ee44..44cf5f724f 100755
--- a/core/prettyprint/prettyprint-docs.factor
+++ b/basis/prettyprint/prettyprint-docs.factor
@@ -26,7 +26,8 @@ ARTICLE: "prettyprint-variables" "Prettyprint control variables"
 { $subsection nesting-limit }
 { $subsection length-limit }
 { $subsection line-limit }
-{ $subsection string-limit }
+{ $subsection string-limit? }
+{ $subsection boa-tuples? }
 "Note that the " { $link short. } " and " { $link pprint-short } " variables override some of these variables."
 {
     $warning "Treat the global variables as essentially being constants. Only ever rebind them in a nested scope."
@@ -86,7 +87,7 @@ $nl
 { $subsection "prettyprint-section-protocol" } ;
 
 ARTICLE: "prettyprint-literal" "Literal prettyprinting protocol"
-"Unless a more specialized method exists for the input class, the " { $link pprint* } " word outputs an object in a standard format, ultimately calling two generic words:"
+"Most custom data types have a literal syntax which resembles a sequence. An easy way to define such a syntax is to add a method to the " { $link pprint* } " generic word which calls " { $link pprint-object } ", and then to provide methods on two other generic words:"
 { $subsection pprint-delims }
 { $subsection >pprint-sequence }
 "For example, consider the following data type, together with a parsing word for creating literals:"
@@ -104,10 +105,11 @@ ARTICLE: "prettyprint-literal" "Literal prettyprinting protocol"
 { $code "RECT[ 100 * 200 ]" }
 "Without further effort, the literal does not print in the same way:"
 { $unchecked-example "RECT[ 100 * 200 ] ." "T{ rect f 100 200 }" }
-"However, we can define two methods easily enough:"
+"However, we can define three methods easily enough:"
 { $code
     "M: rect pprint-delims drop \\ RECT[ \\ ] ;"
     "M: rect >pprint-sequence dup rect-w \\ * rot rect-h 3array ;"
+    "M: rect pprint* pprint-object ;"
 }
 "Now, it will be printed in a custom way:"
 { $unchecked-example "RECT[ 100 * 200 ] ." "RECT[ 100 * 200 ]" } ;
diff --git a/core/prettyprint/prettyprint-tests.factor b/basis/prettyprint/prettyprint-tests.factor
similarity index 88%
rename from core/prettyprint/prettyprint-tests.factor
rename to basis/prettyprint/prettyprint-tests.factor
index f5ec263f11..9bffb34ed1 100755
--- a/core/prettyprint/prettyprint-tests.factor
+++ b/basis/prettyprint/prettyprint-tests.factor
@@ -2,7 +2,8 @@ USING: arrays definitions io.streams.string io.streams.duplex
 kernel math namespaces parser prettyprint prettyprint.config
 prettyprint.sections sequences tools.test vectors words
 effects splitting generic.standard prettyprint.private
-continuations generic compiler.units tools.walker ;
+continuations generic compiler.units tools.walker eval
+accessors ;
 IN: prettyprint.tests
 
 [ "4" ] [ 4 unparse ] unit-test
@@ -34,23 +35,6 @@ unit-test
 
 [ "SBUF\" hello world\"" ] [ SBUF" hello world" unparse ] unit-test
 
-
-[ "( a b -- c d )" ] [
-    { "a" "b" } { "c" "d" } <effect> effect>string
-] unit-test
-
-[ "( -- c d )" ] [
-    { } { "c" "d" } <effect> effect>string
-] unit-test
-
-[ "( a b -- )" ] [
-    { "a" "b" } { } <effect> effect>string
-] unit-test
-
-[ "( -- )" ] [
-    { } { } <effect> effect>string
-] unit-test
-
 [ "W{ \\ + }" ] [ [ W{ \ + } ] first unparse ] unit-test
 
 [ ] [ \ fixnum see ] unit-test
@@ -118,11 +102,20 @@ unit-test
         ] keep =
     ] with-scope ;
 
-: method-test
+GENERIC: method-layout
+
+M: complex method-layout
+    "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+    ;
+
+M: fixnum method-layout ;
+
+M: integer method-layout ;
+
+M: object method-layout ;
+
+[
     {
-        "IN: prettyprint.tests"
-        "GENERIC: method-layout"
-        ""
         "USING: math prettyprint.tests ;"
         "M: complex method-layout"
         "    \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\""
@@ -136,10 +129,10 @@ unit-test
         ""
         "USING: kernel prettyprint.tests ;"
         "M: object method-layout ;"
-    } ;
-
-[ t ] [
-    "method-layout" method-test check-see
+        ""
+    }
+] [
+    [ \ method-layout see-methods ] with-string-writer "\n" split
 ] unit-test
 
 : retain-stack-test
@@ -184,9 +177,11 @@ unit-test
     "another-retain-layout" another-retain-layout-test check-see
 ] unit-test
 
+DEFER: parse-error-file
+
 : another-soft-break-test
     {
-        "USING: namespaces parser sequences ;"
+        "USING: namespaces sequences ;"
         "IN: prettyprint.tests"
         ": another-soft-break-layout ( node -- quot )"
         "    parse-error-file"
@@ -200,11 +195,11 @@ unit-test
 
 : string-layout
     {
-        "USING: io kernel parser ;"
+        "USING: accessors debugger io kernel ;"
         "IN: prettyprint.tests"
         ": string-layout-test ( error -- )"
-        "    \"Expected \" write dup unexpected-want expected>string write"
-        "    \" but got \" write unexpected-got expected>string print ;"
+        "    \"Expected \" write dup want>> expected>string write"
+        "    \" but got \" write got>> expected>string print ;"
     } ;
 
 
@@ -270,7 +265,16 @@ unit-test
     "another-narrow-layout" another-narrow-test check-see
 ] unit-test
 
-: class-see-test
+IN: prettyprint.tests
+TUPLE: class-see-layout ;
+
+IN: prettyprint.tests
+GENERIC: class-see-layout ( x -- y )
+
+USING: prettyprint.tests ;
+M: class-see-layout class-see-layout ;
+
+[
     {
         "IN: prettyprint.tests"
         "TUPLE: class-see-layout ;"
@@ -278,15 +282,22 @@ unit-test
         "IN: prettyprint.tests"
         "GENERIC: class-see-layout ( x -- y )"
         ""
-        "USING: prettyprint.tests ;"
-        "M: class-see-layout class-see-layout ;"
-    } ;
-
-[ t ] [
-    "class-see-layout" class-see-test check-see
+    }
+] [
+    [ \ class-see-layout see ] with-string-writer "\n" split
 ] unit-test
 
-[ ] [ \ effect-in synopsis drop ] unit-test
+[
+    {
+        "USING: prettyprint.tests ;"
+        "M: class-see-layout class-see-layout ;"
+        ""
+    }
+] [
+    [ \ class-see-layout see-methods ] with-string-writer "\n" split
+] unit-test
+
+[ ] [ \ in>> synopsis drop ] unit-test
 
 ! Regression
 [ t ] [
diff --git a/core/prettyprint/prettyprint.factor b/basis/prettyprint/prettyprint.factor
similarity index 72%
rename from core/prettyprint/prettyprint.factor
rename to basis/prettyprint/prettyprint.factor
index a3c3f4926b..3b9d034378 100755
--- a/core/prettyprint/prettyprint.factor
+++ b/basis/prettyprint/prettyprint.factor
@@ -1,14 +1,16 @@
 ! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-IN: prettyprint
+
 USING: arrays generic generic.standard assocs io kernel
 math namespaces sequences strings io.styles io.streams.string
 vectors words prettyprint.backend prettyprint.sections
-prettyprint.config sorting splitting math.parser vocabs
+prettyprint.config sorting splitting grouping math.parser vocabs
 definitions effects classes.builtin classes.tuple io.files
 classes continuations hashtables classes.mixin classes.union
 classes.intersection classes.predicate classes.singleton
-combinators quotations sets ;
+combinators quotations sets accessors colors ;
+
+IN: prettyprint
 
 : make-pprint ( obj quot -- block in use )
     [
@@ -36,13 +38,13 @@ combinators quotations sets ;
     [ write-in nl ] when* ;
 
 : use. ( seq -- )
-    dup empty? [ drop ] [
+    [
         natural-sort [
             \ USING: pprint-word
             [ pprint-vocab ] each
             \ ; pprint-word
         ] with-pprint nl
-    ] if ;
+    ] unless-empty ;
 
 : vocabs. ( in use -- )
     dupd remove [ { "syntax" "scratchpad" } member? not ] filter
@@ -56,11 +58,7 @@ combinators quotations sets ;
 
 : pprint ( obj -- ) [ pprint* ] with-pprint ;
 
-: . ( obj -- )
-    H{
-       { length-limit 1000 }
-       { nesting-limit 10 }
-    } clone [ pprint ] bind nl ;
+: . ( obj -- ) pprint nl ;
 
 : pprint-use ( obj -- ) [ pprint* ] with-use ;
 
@@ -73,7 +71,8 @@ combinators quotations sets ;
        { line-limit 1 }
        { length-limit 15 }
        { nesting-limit 2 }
-       { string-limit t }
+       { string-limit? t }
+       { boa-tuples? t }
     } clone [ pprint ] bind ;
 
 : unparse-short ( obj -- str )
@@ -95,11 +94,11 @@ combinators quotations sets ;
 SYMBOL: ->
 
 \ ->
-{ { foreground { 1 1 1 1 } } { background { 0 0 0 1 } } }
+{ { foreground T{ rgba f 1 1 1 1 } } { background T{ rgba f 0 0 0 1 } } }
 "word-style" set-word-prop
 
 : remove-step-into ( word -- )
-    building get dup empty? [ drop ] [ nip pop wrapped ] if , ;
+    building get [ nip pop wrapped>> ] unless-empty , ;
 
 : (remove-breakpoints) ( quot -- newquot )
     [
@@ -126,7 +125,7 @@ PRIVATE>
 : callstack. ( callstack -- )
     callstack>array 2 <groups> [
         remove-breakpoints
-        2 nesting-limit [ . ] with-variable
+        3 nesting-limit [ . ] with-variable
     ] assoc-each ;
 
 : .c ( -- ) callstack callstack. ;
@@ -139,52 +138,57 @@ GENERIC: see ( defspec -- )
     [ H{ { font-style italic } } styled-text ] when* ;
 
 : seeing-word ( word -- )
-    word-vocabulary pprinter-in set ;
+    vocabulary>> pprinter-in set ;
 
 : definer. ( defspec -- )
     definer drop pprint-word ;
 
 : stack-effect. ( word -- )
-    dup parsing? over symbol? or not swap stack-effect and
+    [ [ parsing-word? ] [ symbol? ] bi or not ] [ stack-effect ] bi and
     [ effect>string comment. ] when* ;
 
 : word-synopsis ( word -- )
-    dup seeing-word
-    dup definer.
-    dup pprint-word
-    stack-effect. ;
+    {
+        [ seeing-word ]
+        [ definer. ]
+        [ pprint-word ]
+        [ stack-effect. ] 
+    } cleave ;
 
 M: word synopsis* word-synopsis ;
 
 M: simple-generic synopsis* word-synopsis ;
 
 M: standard-generic synopsis*
-    dup definer.
-    dup seeing-word
-    dup pprint-word
-    dup dispatch# pprint*
-    stack-effect. ;
+    {
+        [ definer. ]
+        [ seeing-word ]
+        [ pprint-word ]
+        [ dispatch# pprint* ]
+        [ stack-effect. ]
+    } cleave ;
 
 M: hook-generic synopsis*
-    dup definer.
-    dup seeing-word
-    dup pprint-word
-    dup "combination" word-prop hook-combination-var pprint*
-    stack-effect. ;
+    {
+        [ definer. ]
+        [ seeing-word ]
+        [ pprint-word ]
+        [ "combination" word-prop var>> pprint* ]
+        [ stack-effect. ]
+    } cleave ;
 
 M: method-spec synopsis*
     first2 method synopsis* ;
 
 M: method-body synopsis*
-    dup dup
-    definer.
-    "method-class" word-prop pprint-word
-    "method-generic" word-prop pprint-word ;
+    [ definer. ]
+    [ "method-class" word-prop pprint-word ]
+    [ "method-generic" word-prop pprint-word ] tri ;
 
 M: mixin-instance synopsis*
-    dup definer.
-    dup mixin-instance-class pprint-word
-    mixin-instance-mixin pprint-word ;
+    [ definer. ]
+    [ class>> pprint-word ]
+    [ mixin>> pprint-word ] tri ;
 
 M: pathname synopsis* pprint* ;
 
@@ -209,18 +213,19 @@ GENERIC: declarations. ( obj -- )
 M: object declarations. drop ;
 
 : declaration. ( word prop -- )
-    tuck word-name word-prop [ pprint-word ] [ drop ] if ;
+    tuck name>> word-prop [ pprint-word ] [ drop ] if ;
 
 M: word declarations.
     {
         POSTPONE: parsing
         POSTPONE: delimiter
         POSTPONE: inline
+        POSTPONE: recursive
         POSTPONE: foldable
         POSTPONE: flushable
     } [ declaration. ] with each ;
 
-: pprint-; \ ; pprint-word ;
+: pprint-; ( -- ) \ ; pprint-word ;
 
 : (see) ( spec -- )
     <colon dup synopsis*
@@ -263,13 +268,41 @@ M: predicate-class see-class*
 M: singleton-class see-class* ( class -- )
     \ SINGLETON: pprint-word pprint-word ;
 
+GENERIC: pprint-slot-name ( object -- )
+
+M: string pprint-slot-name text ;
+
+M: array pprint-slot-name
+    <flow \ { pprint-word
+    f <inset unclip text pprint-elements block>
+    \ } pprint-word block> ;
+
+: unparse-slot ( slot-spec -- array )
+    [
+        dup name>> ,
+        dup class>> object eq? [
+            dup class>> ,
+            initial: ,
+            dup initial>> ,
+        ] unless
+        dup read-only>> [
+            read-only ,
+        ] when
+        drop
+    ] { } make ;
+
+: pprint-slot ( slot-spec -- )
+    unparse-slot
+    dup length 1 = [ first ] when
+    pprint-slot-name ;
+
 M: tuple-class see-class*
     <colon \ TUPLE: pprint-word
     dup pprint-word
     dup superclass tuple eq? [
         "<" text dup superclass pprint-word
     ] unless
-    slot-names [ text ] each
+    <block "slots" word-prop [ pprint-slot ] each block>
     pprint-; block> ;
 
 M: word see-class* drop ;
@@ -277,14 +310,6 @@ M: word see-class* drop ;
 M: builtin-class see-class*
     drop "! Built-in class" comment. ;
 
-: see-all ( seq -- )
-    natural-sort [ nl see ] each ;
-
-: see-implementors ( class -- seq )
-    dup implementors
-    [ method ] with map
-    natural-sort ;
-
 : see-class ( class -- )
     dup class? [
         [
@@ -292,9 +317,6 @@ M: builtin-class see-class*
         ] with-use nl
     ] when drop ;
 
-: see-methods ( generic -- seq )
-    "methods" word-prop values natural-sort ;
-
 M: word see
     dup see-class
     dup class? over symbol? not and [
@@ -303,8 +325,20 @@ M: word see
     dup class? over symbol? and not [
         [ dup (see) ] with-use nl
     ] when
+    drop ;
+
+: see-all ( seq -- )
+    natural-sort [ nl ] [ see ] interleave ;
+
+: (see-implementors) ( class -- seq )
+    dup implementors [ method ] with map natural-sort ;
+
+: (see-methods) ( generic -- seq )
+    "methods" word-prop values natural-sort ;
+
+: see-methods ( word -- )
     [
-        dup class? [ dup see-implementors % ] when
-        dup generic? [ dup see-methods % ] when
+        dup class? [ dup (see-implementors) % ] when
+        dup generic? [ dup (see-methods) % ] when
         drop
     ] { } make prune see-all ;
diff --git a/extra/io/unix/mmap/authors.txt b/basis/prettyprint/sections/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/unix/mmap/authors.txt
rename to basis/prettyprint/sections/authors.txt
diff --git a/core/prettyprint/sections/sections-docs.factor b/basis/prettyprint/sections/sections-docs.factor
similarity index 100%
rename from core/prettyprint/sections/sections-docs.factor
rename to basis/prettyprint/sections/sections-docs.factor
diff --git a/core/prettyprint/sections/sections.factor b/basis/prettyprint/sections/sections.factor
similarity index 91%
rename from core/prettyprint/sections/sections.factor
rename to basis/prettyprint/sections/sections.factor
index 73d3620107..13c86ea994 100644
--- a/core/prettyprint/sections/sections.factor
+++ b/basis/prettyprint/sections/sections.factor
@@ -3,7 +3,7 @@
 USING: arrays generic hashtables io kernel math assocs
 namespaces sequences strings io.styles vectors words
 prettyprint.config splitting classes continuations
-io.streams.nested accessors ;
+io.streams.nested accessors sets ;
 IN: prettyprint.sections
 
 ! State
@@ -20,7 +20,7 @@ TUPLE: pprinter last-newline line-count indent ;
 : <pprinter> ( -- pprinter ) 0 1 0 pprinter boa ;
 
 : record-vocab ( word -- )
-    word-vocabulary [ dup pprinter-use get set-at ] when* ;
+    vocabulary>> [ pprinter-use get conjoin ] when* ;
 
 ! Utility words
 : line-limit? ( -- ? )
@@ -115,10 +115,10 @@ M: object short-section? section-fits? ;
 
 : pprint-section ( section -- )
     dup short-section? [
-        dup section-style [ short-section ] with-style
+        dup style>> [ short-section ] with-style
     ] [
         [ <long-section ]
-        [ dup section-style [ long-section ] with-style ]
+        [ dup style>> [ long-section ] with-style ]
         [ long-section> ]
         tri
     ] if ;
@@ -171,10 +171,11 @@ M: block section-fits? ( section -- ? )
     line-limit? [ drop t ] [ call-next-method ] if ;
 
 : pprint-sections ( block advancer -- )
-    swap sections>> [ line-break? not ] filter
-    unclip pprint-section [
-        dup rot call pprint-section
-    ] with each ; inline
+    [
+        sections>> [ line-break? not ] filter
+        unclip-slice pprint-section
+    ] dip
+    [ [ pprint-section ] bi ] curry each ; inline
 
 M: block short-section ( block -- )
     [ advance ] pprint-sections ;
@@ -190,9 +191,9 @@ M: block short-section ( block -- )
 : if-nonempty ( block quot -- )
     >r dup empty-block? [ drop ] r> if ; inline
 
-: (<block) pprinter-stack get push ;
+: (<block) ( block -- ) pprinter-stack get push ;
 
-: <block f <block> (<block) ;
+: <block ( -- ) f <block> (<block) ;
 
 : <object ( obj -- ) presented associate <block> (<block) ;
 
@@ -204,7 +205,7 @@ TUPLE: text < section string ;
         swap >>style
         swap >>string ;
 
-M: text short-section text-string write ;
+M: text short-section string>> write ;
 
 M: text long-section short-section ;
 
@@ -288,19 +289,15 @@ M: colon unindent-first-line? drop t ;
 SYMBOL: prev
 SYMBOL: next
 
-: split-groups [ t , ] when ;
-
-M: f section-start-group? drop t ;
-
-M: f section-end-group? drop f ;
+: split-groups ( ? -- ) [ t , ] when ;
 
 : split-before ( section -- )
-    [ section-start-group? prev get section-end-group? and ]
+    [ start-group?>> prev get [ end-group?>> ] [ t ] if* and ]
     [ flow? prev get flow? not and ]
     bi or split-groups ;
 
 : split-after ( section -- )
-    section-end-group? split-groups ;
+    [ end-group?>> ] [ f ] if* split-groups ;
 
 : group-flow ( seq -- newseq )
     [
diff --git a/core/prettyprint/sections/summary.txt b/basis/prettyprint/sections/summary.txt
similarity index 100%
rename from core/prettyprint/sections/summary.txt
rename to basis/prettyprint/sections/summary.txt
diff --git a/core/prettyprint/summary.txt b/basis/prettyprint/summary.txt
similarity index 100%
rename from core/prettyprint/summary.txt
rename to basis/prettyprint/summary.txt
diff --git a/core/prettyprint/tags.txt b/basis/prettyprint/tags.txt
similarity index 100%
rename from core/prettyprint/tags.txt
rename to basis/prettyprint/tags.txt
diff --git a/extra/sequences/deep/authors.txt b/basis/qualified/authors.txt
similarity index 100%
rename from extra/sequences/deep/authors.txt
rename to basis/qualified/authors.txt
diff --git a/extra/qualified/qualified-docs.factor b/basis/qualified/qualified-docs.factor
similarity index 100%
rename from extra/qualified/qualified-docs.factor
rename to basis/qualified/qualified-docs.factor
diff --git a/extra/qualified/qualified-tests.factor b/basis/qualified/qualified-tests.factor
similarity index 100%
rename from extra/qualified/qualified-tests.factor
rename to basis/qualified/qualified-tests.factor
diff --git a/extra/qualified/qualified.factor b/basis/qualified/qualified.factor
similarity index 81%
rename from extra/qualified/qualified.factor
rename to basis/qualified/qualified.factor
index 3ce6d30819..d636cc0152 100644
--- a/extra/qualified/qualified.factor
+++ b/basis/qualified/qualified.factor
@@ -1,5 +1,7 @@
-USING: kernel sequences assocs hashtables parser vocabs words namespaces
-vocabs.loader debugger sets ;
+! Copyright (C) 2007, 2008 Daniel Ehrenberg.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences assocs hashtables parser lexer
+vocabs words namespaces vocabs.loader debugger sets ;
 IN: qualified
 
 : define-qualified ( vocab-name prefix-name -- )
@@ -15,7 +17,7 @@ IN: qualified
     #! Syntax: QUALIFIED-WITH: vocab prefix
     scan scan define-qualified ; parsing
 
-: expect=> scan "=>" assert= ;
+: expect=> ( -- ) scan "=>" assert= ;
 
 : partial-vocab ( words name -- assoc )
     dupd [
diff --git a/extra/qualified/summary.txt b/basis/qualified/summary.txt
similarity index 100%
rename from extra/qualified/summary.txt
rename to basis/qualified/summary.txt
diff --git a/extra/qualified/tags.txt b/basis/qualified/tags.txt
similarity index 100%
rename from extra/qualified/tags.txt
rename to basis/qualified/tags.txt
diff --git a/extra/random/dummy/dummy.factor b/basis/random/dummy/dummy.factor
similarity index 100%
rename from extra/random/dummy/dummy.factor
rename to basis/random/dummy/dummy.factor
diff --git a/extra/io/mmap/authors.txt b/basis/random/mersenne-twister/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/mmap/authors.txt
rename to basis/random/mersenne-twister/authors.txt
diff --git a/extra/random/mersenne-twister/mersenne-twister-docs.factor.bak b/basis/random/mersenne-twister/mersenne-twister-docs.factor.bak
similarity index 100%
rename from extra/random/mersenne-twister/mersenne-twister-docs.factor.bak
rename to basis/random/mersenne-twister/mersenne-twister-docs.factor.bak
diff --git a/extra/random/mersenne-twister/mersenne-twister-tests.factor b/basis/random/mersenne-twister/mersenne-twister-tests.factor
similarity index 100%
rename from extra/random/mersenne-twister/mersenne-twister-tests.factor
rename to basis/random/mersenne-twister/mersenne-twister-tests.factor
diff --git a/extra/random/mersenne-twister/mersenne-twister.factor b/basis/random/mersenne-twister/mersenne-twister.factor
similarity index 96%
rename from extra/random/mersenne-twister/mersenne-twister.factor
rename to basis/random/mersenne-twister/mersenne-twister.factor
index 01e79abff2..0a730190c2 100755
--- a/extra/random/mersenne-twister/mersenne-twister.factor
+++ b/basis/random/mersenne-twister/mersenne-twister.factor
@@ -3,7 +3,7 @@
 ! mersenne twister based on 
 ! http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/MT2002/CODES/mt19937ar.c
 USING: arrays kernel math namespaces sequences system init
-accessors math.ranges random circular math.bitfields.lib
+accessors math.ranges random circular math.bitwise
 combinators ;
 IN: random.mersenne-twister
 
diff --git a/extra/random/mersenne-twister/summary.txt b/basis/random/mersenne-twister/summary.txt
similarity index 100%
rename from extra/random/mersenne-twister/summary.txt
rename to basis/random/mersenne-twister/summary.txt
diff --git a/extra/random/random-docs.factor b/basis/random/random-docs.factor
similarity index 93%
rename from extra/random/random-docs.factor
rename to basis/random/random-docs.factor
index a8a214dcc7..74751328d5 100644
--- a/extra/random/random-docs.factor
+++ b/basis/random/random-docs.factor
@@ -27,7 +27,13 @@ HELP: random
 
 HELP: random-bytes
 { $values { "n" "an integer" } { "byte-array" "a random integer" } }
-{ $description "Outputs an integer with n bytes worth of bits." } ;
+{ $description "Outputs an integer with n bytes worth of bits." }
+{ $examples 
+    { $unchecked-example "USING: prettyprint random ;"
+               "5 random-bytes ."
+               "B{ 135 50 185 119 240 }"
+    }
+} ;
 
 HELP: random-bits
 { $values { "n" "an integer" } { "r" "a random integer" } }
diff --git a/basis/random/random-tests.factor b/basis/random/random-tests.factor
new file mode 100644
index 0000000000..89c0c02c4a
--- /dev/null
+++ b/basis/random/random-tests.factor
@@ -0,0 +1,17 @@
+USING: random sequences tools.test kernel math math.functions
+sets ;
+IN: random.tests
+
+[ 4 ] [ 4 random-bytes length ] unit-test
+[ 7 ] [ 7 random-bytes length ] unit-test
+
+[ 4 ] [ [ 4 random-bytes length ] with-secure-random ] unit-test
+[ 7 ] [ [ 7 random-bytes length ] with-secure-random ] unit-test
+
+[ 2 ] [ V{ 10 20 30 } [ delete-random drop ] keep length ] unit-test
+[ V{ } [ delete-random drop ] keep length ] must-fail
+
+[ t ] [ 10000 [ 0 [ drop 187 random + ] reduce ] keep / 2 * 187 10 ~ ] unit-test
+[ t ] [ 10000 [ 0 [ drop 400 random + ] reduce ] keep / 2 * 400 10 ~ ] unit-test
+
+[ t ] [ 1000 [ 400 random ] replicate prune length 256 > ] unit-test
diff --git a/extra/random/random.factor b/basis/random/random.factor
similarity index 80%
rename from extra/random/random.factor
rename to basis/random/random.factor
index b4b6ad9aff..0a421288d5 100755
--- a/extra/random/random.factor
+++ b/basis/random/random.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien.c-types kernel math namespaces sequences
 io.backend io.binary combinators system vocabs.loader
-inspector ;
+summary math.bitwise ;
 IN: random
 
 SYMBOL: system-random-generator
@@ -29,19 +29,21 @@ M: f random-32* ( obj -- * ) no-random-number-generator ;
 
 : random-bytes ( n -- byte-array )
     [
-        dup 4 rem zero? [ 1+ ] unless
+        dup 3 mask zero? [ 1+ ] unless
         random-generator get random-bytes*
     ] keep head ;
 
 : random ( seq -- elt )
-    dup empty? [
-        drop f
-    ] [
+    [ f ] [
         [
-            length dup log2 7 + 8 /i
-            random-bytes byte-array>bignum swap mod
+            length dup log2 7 + 8 /i 1+ random-bytes
+            [ length 3 shift 2^ ] [ byte-array>bignum ] bi
+            swap / * >integer
         ] keep nth
-    ] if ;
+    ] if-empty ;
+
+: delete-random ( seq -- elt )
+    [ length random ] keep [ nth ] 2keep delete-nth ;
 
 : random-bits ( n -- r ) 2^ random ;
 
diff --git a/basis/random/unix/tags.txt b/basis/random/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/random/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/random/unix/unix.factor b/basis/random/unix/unix.factor
similarity index 57%
rename from extra/random/unix/unix.factor
rename to basis/random/unix/unix.factor
index e534691ecd..90f3d1efbb 100644
--- a/extra/random/unix/unix.factor
+++ b/basis/random/unix/unix.factor
@@ -1,19 +1,14 @@
-USING: alien.c-types io io.files io.ports kernel
-namespaces random io.encodings.binary init
-accessors system ;
+USING: alien.c-types io io.files kernel namespaces random
+io.encodings.binary init accessors system ;
 IN: random.unix
 
-TUPLE: unix-random path ;
+TUPLE: unix-random reader ;
 
-C: <unix-random> unix-random
-
-: file-read-unbuffered ( n path -- bytes )
-    over default-buffer-size [
-        binary [ read ] with-file-reader
-    ] with-variable ;
+: <unix-random> ( path -- random )
+    binary <file-reader> unix-random boa ;
 
 M: unix-random random-bytes* ( n tuple -- byte-array )
-    path>> file-read-unbuffered ;
+    reader>> stream-read ;
 
 os openbsd? [
     [
diff --git a/basis/random/windows/tags.txt b/basis/random/windows/tags.txt
new file mode 100644
index 0000000000..02ec70f741
--- /dev/null
+++ b/basis/random/windows/tags.txt
@@ -0,0 +1,2 @@
+unportable
+windows
diff --git a/extra/random/windows/windows.factor b/basis/random/windows/windows.factor
similarity index 100%
rename from extra/random/windows/windows.factor
rename to basis/random/windows/windows.factor
diff --git a/extra/io/unix/select/authors.txt b/basis/refs/authors.txt
similarity index 100%
rename from extra/io/unix/select/authors.txt
rename to basis/refs/authors.txt
diff --git a/core/refs/refs-docs.factor b/basis/refs/refs-docs.factor
similarity index 95%
rename from core/refs/refs-docs.factor
rename to basis/refs/refs-docs.factor
index dff671fdc2..0034b7e566 100644
--- a/core/refs/refs-docs.factor
+++ b/basis/refs/refs-docs.factor
@@ -4,7 +4,7 @@ USING: help.markup help.syntax kernel ;
 IN: refs
 
 ARTICLE: "refs" "References to assoc entries"
-"A " { $emphasis "reference" } " is an object encapsulating an assoc and a key; the reference then refers to either the key itself, or the value associated to the key. References can be read, written, and deleted."
+"A " { $emphasis "reference" } " is an object encapsulating an assoc and a key; the reference then refers to either the key itself, or the value associated to the key. References can be read, written, and deleted. References are defined in the " { $vocab-link "refs" } " vocabulary."
 { $subsection get-ref }
 { $subsection set-ref }
 { $subsection delete-ref }
diff --git a/core/refs/refs-tests.factor b/basis/refs/refs-tests.factor
similarity index 100%
rename from core/refs/refs-tests.factor
rename to basis/refs/refs-tests.factor
diff --git a/core/refs/refs.factor b/basis/refs/refs.factor
similarity index 100%
rename from core/refs/refs.factor
rename to basis/refs/refs.factor
diff --git a/core/refs/summary.txt b/basis/refs/summary.txt
similarity index 100%
rename from core/refs/summary.txt
rename to basis/refs/summary.txt
diff --git a/extra/io/unix/sockets/authors.txt b/basis/search-deques/authors.txt
similarity index 100%
rename from extra/io/unix/sockets/authors.txt
rename to basis/search-deques/authors.txt
diff --git a/basis/search-deques/search-deques-docs.factor b/basis/search-deques/search-deques-docs.factor
new file mode 100644
index 0000000000..fef770b0f8
--- /dev/null
+++ b/basis/search-deques/search-deques-docs.factor
@@ -0,0 +1,21 @@
+IN: search-deques
+USING: help.markup help.syntax kernel dlists hashtables
+deques assocs ;
+
+ARTICLE: "search-deques" "Search deques"
+"A search deque is a data structure with constant-time insertion and removal of elements at both ends, and constant-time membership tests. Inserting an element more than once has no effect. Search deques implement all deque operations in terms of an underlying deque, and membership testing with " { $link deque-member? } " is implemented with an underlying assoc. Search deques are defined in the " { $vocab-link "search-deques" } " vocabulary."
+$nl
+"Creating a search deque:"
+{ $subsection <search-deque> }
+"Default implementation:"
+{ $subsection <hashed-dlist> } ;
+
+ABOUT: "search-deques"
+
+HELP: <search-deque> ( assoc deque -- search-deque )
+{ $values { "assoc" assoc } { "deque" deque } { "search-deque" search-deque } }
+{ $description "Creates a new " { $link search-deque } "." } ;
+
+HELP: <hashed-dlist> ( -- search-deque )
+{ $values { "search-deque" search-deque } }
+{ $description "Creates a new " { $link search-deque } " backed by a " { $link dlist } ", with a " { $link hashtable } " for fast membership tests." } ;
diff --git a/basis/search-deques/search-deques-tests.factor b/basis/search-deques/search-deques-tests.factor
new file mode 100644
index 0000000000..cf2837a84c
--- /dev/null
+++ b/basis/search-deques/search-deques-tests.factor
@@ -0,0 +1,35 @@
+IN: search-deques.tests
+USING: search-deques tools.test namespaces
+kernel sequences words deques vocabs ;
+
+<hashed-dlist> "h" set
+
+[ t ] [ "h" get deque-empty? ] unit-test
+
+[ ] [ 3 "h" get push-front* "1" set ] unit-test
+[ ] [ 1 "h" get push-front ] unit-test
+[ ] [ 3 "h" get push-front* "2" set ] unit-test
+[ ] [ 3 "h" get push-front* "3" set ] unit-test
+[ ] [ 7 "h" get push-front ] unit-test
+
+[ t ] [ "1" get "2" get eq? ] unit-test
+[ t ] [ "2" get "3" get eq? ] unit-test
+
+[ 3 ] [ "h" get deque-length ] unit-test
+[ t ] [ 7 "h" get deque-member? ] unit-test
+
+[ 3 ] [ "1" get node-value ] unit-test
+[ ] [ "1" get "h" get delete-node ] unit-test
+
+[ 2 ] [ "h" get deque-length ] unit-test
+[ 1 ] [ "h" get pop-back ] unit-test
+[ 7 ] [ "h" get pop-back ] unit-test
+
+[ f ] [ 7 "h" get deque-member? ] unit-test
+
+[ ] [
+    <hashed-dlist>
+    [ all-words swap [ push-front ] curry each ]
+    [ [ drop ] slurp-deque ]
+    bi
+] unit-test
diff --git a/basis/search-deques/search-deques.factor b/basis/search-deques/search-deques.factor
new file mode 100644
index 0000000000..8e5506090c
--- /dev/null
+++ b/basis/search-deques/search-deques.factor
@@ -0,0 +1,53 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel assocs deques dlists hashtables ;
+IN: search-deques
+
+TUPLE: search-deque assoc deque ;
+
+C: <search-deque> search-deque
+
+: <hashed-dlist> ( -- search-deque )
+    0 <hashtable> <dlist> <search-deque> ;
+
+M: search-deque deque-length deque>> deque-length ;
+
+M: search-deque peek-front deque>> peek-front ;
+
+M: search-deque peek-back deque>> peek-back ;
+
+M: search-deque push-front*
+    2dup assoc>> at* [ 2nip ] [
+        drop
+        [ deque>> push-front* ] [ assoc>> ] 2bi
+        [ 2drop ] [ set-at ] 3bi
+    ] if ;
+
+M: search-deque push-back*
+    2dup assoc>> at* [ 2nip ] [
+        drop
+        [ deque>> push-back* ] [ assoc>> ] 2bi
+        [ 2drop ] [ set-at ] 3bi
+    ] if ;
+
+M: search-deque pop-front*
+    [ [ deque>> peek-front ] [ assoc>> ] bi delete-at ]
+    [ deque>> pop-front* ]
+    bi ;
+
+M: search-deque pop-back*
+    [ [ deque>> peek-back ] [ assoc>> ] bi delete-at ]
+    [ deque>> pop-back* ]
+    bi ;
+
+M: search-deque delete-node
+    [ deque>> delete-node ]
+    [ [ node-value ] [ assoc>> ] bi* delete-at ] 2bi ;
+
+M: search-deque clear-deque
+    [ deque>> clear-deque ] [ assoc>> clear-assoc ] bi ;
+
+M: search-deque deque-member?
+    assoc>> key? ;
+
+INSTANCE: search-deque deque
diff --git a/basis/search-deques/summary.txt b/basis/search-deques/summary.txt
new file mode 100644
index 0000000000..9102bf2d58
--- /dev/null
+++ b/basis/search-deques/summary.txt
@@ -0,0 +1 @@
+Double-ended queues with sub-linear membership testing
diff --git a/basis/search-deques/tags.txt b/basis/search-deques/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/search-deques/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/sequences/next/authors.txt b/basis/sequences/deep/authors.txt
similarity index 100%
rename from extra/sequences/next/authors.txt
rename to basis/sequences/deep/authors.txt
diff --git a/extra/sequences/deep/deep-docs.factor b/basis/sequences/deep/deep-docs.factor
similarity index 100%
rename from extra/sequences/deep/deep-docs.factor
rename to basis/sequences/deep/deep-docs.factor
diff --git a/extra/sequences/deep/deep-tests.factor b/basis/sequences/deep/deep-tests.factor
similarity index 100%
rename from extra/sequences/deep/deep-tests.factor
rename to basis/sequences/deep/deep-tests.factor
diff --git a/extra/sequences/deep/deep.factor b/basis/sequences/deep/deep.factor
similarity index 54%
rename from extra/sequences/deep/deep.factor
rename to basis/sequences/deep/deep.factor
index c0e516e471..2e50fa5411 100644
--- a/extra/sequences/deep/deep.factor
+++ b/basis/sequences/deep/deep.factor
@@ -5,30 +5,32 @@ IN: sequences.deep
 
 ! All traversal goes in postorder
 
-: branch? ( object -- ? )
-    dup sequence? [
-        dup string? swap number? or not
-    ] [ drop f ] if ;
+GENERIC: branch? ( object -- ? )
 
-: deep-each ( obj quot -- )
+M: sequence branch? drop t ;
+M: integer branch? drop f ;
+M: string branch? drop f ;
+M: object branch? drop f ;
+
+: deep-each ( obj quot: ( elt -- ) -- )
     [ call ] 2keep over branch?
-    [ [ deep-each ] curry each ] [ 2drop ] if ; inline
+    [ [ deep-each ] curry each ] [ 2drop ] if ; inline recursive
 
-: deep-map ( obj quot -- newobj )
+: deep-map ( obj quot: ( elt -- elt' ) -- newobj )
     [ call ] keep over branch?
-    [ [ deep-map ] curry map ] [ drop ] if ; inline
+    [ [ deep-map ] curry map ] [ drop ] if ; inline recursive
 
-: deep-filter ( obj quot -- seq )
+: deep-filter ( obj quot: ( elt -- ? ) -- seq )
     over >r
     pusher >r deep-each r>
-    r> dup branch? [ like ] [ drop ] if ; inline
+    r> dup branch? [ like ] [ drop ] if ; inline recursive
 
-: deep-find-from ( obj quot -- elt ? )
+: deep-find-from ( obj quot: ( elt -- ? ) -- elt ? )
     [ call ] 2keep rot [ drop t ] [
         over branch? [
             f -rot [ >r nip r> deep-find-from ] curry find drop >boolean
         ] [ 2drop f f ] if  
-    ] if ; inline
+    ] if ; inline recursive
 
 : deep-find ( obj quot -- elt ) deep-find-from drop ; inline
 
@@ -37,10 +39,10 @@ IN: sequences.deep
 : deep-all? ( obj quot -- ? )
     [ not ] compose deep-contains? not ; inline
 
-: deep-change-each ( obj quot -- )
+: deep-change-each ( obj quot: ( elt -- elt' ) -- )
     over branch? [ [
         [ call ] keep over >r deep-change-each r>
-    ] curry change-each ] [ 2drop ] if ; inline
+    ] curry change-each ] [ 2drop ] if ; inline recursive
 
 : flatten ( obj -- seq )
     [ branch? not ] deep-filter ;
diff --git a/extra/sequences/deep/summary.txt b/basis/sequences/deep/summary.txt
similarity index 100%
rename from extra/sequences/deep/summary.txt
rename to basis/sequences/deep/summary.txt
diff --git a/basis/sequences/deep/tags.txt b/basis/sequences/deep/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/sequences/deep/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/state-parser/authors.txt b/basis/sequences/next/authors.txt
similarity index 100%
rename from extra/state-parser/authors.txt
rename to basis/sequences/next/authors.txt
diff --git a/extra/sequences/next/next-tests.factor b/basis/sequences/next/next-tests.factor
similarity index 100%
rename from extra/sequences/next/next-tests.factor
rename to basis/sequences/next/next-tests.factor
diff --git a/extra/sequences/next/next.factor b/basis/sequences/next/next.factor
similarity index 100%
rename from extra/sequences/next/next.factor
rename to basis/sequences/next/next.factor
diff --git a/extra/sequences/next/summary.txt b/basis/sequences/next/summary.txt
similarity index 100%
rename from extra/sequences/next/summary.txt
rename to basis/sequences/next/summary.txt
diff --git a/basis/sequences/next/tags.txt b/basis/sequences/next/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/sequences/next/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/serialize/authors.txt b/basis/serialize/authors.txt
similarity index 100%
rename from extra/serialize/authors.txt
rename to basis/serialize/authors.txt
diff --git a/extra/serialize/serialize-docs.factor b/basis/serialize/serialize-docs.factor
similarity index 100%
rename from extra/serialize/serialize-docs.factor
rename to basis/serialize/serialize-docs.factor
diff --git a/extra/serialize/serialize-tests.factor b/basis/serialize/serialize-tests.factor
similarity index 82%
rename from extra/serialize/serialize-tests.factor
rename to basis/serialize/serialize-tests.factor
index c5734b2ae8..3a75ad65b6 100755
--- a/extra/serialize/serialize-tests.factor
+++ b/basis/serialize/serialize-tests.factor
@@ -2,9 +2,9 @@
 ! See http://factorcode.org/license.txt for BSD license.
 ! 
 USING: tools.test kernel serialize io io.streams.byte-array math
-alien arrays byte-arrays sequences math prettyprint parser
-classes math.constants io.encodings.binary random
-combinators.lib assocs ;
+alien arrays byte-arrays bit-arrays float-arrays sequences math
+prettyprint parser classes math.constants io.encodings.binary
+random assocs ;
 IN: serialize.tests
 
 : test-serialize-cell
@@ -15,12 +15,11 @@ IN: serialize.tests
 [ t ] [
     100 [
         drop
-        {
-            [ 40 [        test-serialize-cell ] all? ]
-            [  4 [ 40 *   test-serialize-cell ] all? ]
-            [  4 [ 400 *  test-serialize-cell ] all? ]
-            [  4 [ 4000 * test-serialize-cell ] all? ]
-        } &&
+        40 [        test-serialize-cell ] all?
+         4 [ 40 *   test-serialize-cell ] all?
+         4 [ 400 *  test-serialize-cell ] all?
+         4 [ 4000 * test-serialize-cell ] all?
+        and and and
     ] all?
 ] unit-test
 
diff --git a/extra/serialize/serialize.factor b/basis/serialize/serialize.factor
similarity index 86%
rename from extra/serialize/serialize.factor
rename to basis/serialize/serialize.factor
index fcf57714d6..52c1535886 100755
--- a/extra/serialize/serialize.factor
+++ b/basis/serialize/serialize.factor
@@ -8,11 +8,11 @@
 !
 USING: namespaces sequences kernel math io math.functions
 io.binary strings classes words sbufs classes.tuple arrays
-vectors byte-arrays bit-arrays quotations hashtables assocs
-help.syntax help.markup float-arrays splitting
-io.streams.byte-array io.encodings.string io.encodings.utf8
-io.encodings.binary combinators accessors locals prettyprint
-compiler.units sequences.private classes.tuple.private ;
+vectors byte-arrays quotations hashtables assocs help.syntax
+help.markup splitting io.streams.byte-array io.encodings.string
+io.encodings.utf8 io.encodings.binary combinators accessors
+locals prettyprint compiler.units sequences.private
+classes.tuple.private ;
 IN: serialize
 
 ! Variable holding a assoc of objects already serialized
@@ -130,9 +130,6 @@ M: hashtable (serialize) ( obj -- )
         [ add-object ] [ >alist (serialize) ] bi
     ] serialize-shared ;
 
-M: bit-array (serialize) ( obj -- )
-    CHAR: b serialize-seq ;
-
 M: byte-array (serialize) ( obj -- )
     [
         CHAR: A write1
@@ -141,15 +138,6 @@ M: byte-array (serialize) ( obj -- )
         [ write ] tri
     ] serialize-shared ;
 
-M: float-array (serialize) ( obj -- )
-    [
-        CHAR: f write1
-        [ add-object ]
-        [ length serialize-cell ]
-        [ [ double>bits 8 >be write ] each ]
-        tri
-    ] serialize-shared ;
-
 M: string (serialize) ( obj -- )
     [
         CHAR: s write1
@@ -168,27 +156,27 @@ M: string (serialize) ( obj -- )
     [
         CHAR: G write1
         [ add-object ]
-        [ word-def (serialize) ]
-        [ word-props (serialize) ]
+        [ def>> (serialize) ]
+        [ props>> (serialize) ]
         tri
     ] serialize-shared ;
 
 : serialize-word ( word -- )
     CHAR: w write1
-    [ word-name (serialize) ]
-    [ word-vocabulary (serialize) ]
+    [ name>> (serialize) ]
+    [ vocabulary>> (serialize) ]
     bi ;
 
 M: word (serialize) ( obj -- )
     {
         { [ dup t eq? ] [ serialize-true ] }
-        { [ dup word-vocabulary not ] [ serialize-gensym ] }
+        { [ dup vocabulary>> not ] [ serialize-gensym ] }
         [ serialize-word ]
     } cond ;
 
 M: wrapper (serialize) ( obj -- )
     CHAR: W write1
-    wrapped (serialize) ;
+    wrapped>> (serialize) ;
 
 DEFER: (deserialize) ( -- obj )
 
@@ -239,7 +227,7 @@ SYMBOL: deserialized
     gensym {
         [ intern-object ]
         [ (deserialize) define ]
-        [ (deserialize) swap set-word-props ]
+        [ (deserialize) >>props drop ]
         [ ]
     } cleave ;
 
@@ -260,12 +248,6 @@ SYMBOL: deserialized
 : deserialize-byte-array ( -- byte-array )
     B{ } [ read1 ] (deserialize-seq) ;
 
-: deserialize-bit-array ( -- bit-array )
-    ?{ } [ (deserialize) ] (deserialize-seq) ;
-
-: deserialize-float-array ( -- float-array )
-    F{ } [ 8 read be> bits>double ] (deserialize-seq) ;
-
 : deserialize-hashtable ( -- hashtable )
     H{ } clone
     [ intern-object ]
@@ -296,9 +278,7 @@ SYMBOL: deserialized
             { CHAR: T [ deserialize-tuple ] }
             { CHAR: W [ deserialize-wrapper ] }
             { CHAR: a [ deserialize-array ] }
-            { CHAR: b [ deserialize-bit-array ] }
             { CHAR: c [ deserialize-complex ] }
-            { CHAR: f [ deserialize-float-array ] }
             { CHAR: h [ deserialize-hashtable ] }
             { CHAR: m [ deserialize-negative-integer ] }
             { CHAR: n [ deserialize-false ] }
diff --git a/extra/serialize/summary.txt b/basis/serialize/summary.txt
similarity index 100%
rename from extra/serialize/summary.txt
rename to basis/serialize/summary.txt
diff --git a/extra/shuffle/authors.txt b/basis/shuffle/authors.txt
similarity index 100%
rename from extra/shuffle/authors.txt
rename to basis/shuffle/authors.txt
diff --git a/basis/shuffle/shuffle-tests.factor b/basis/shuffle/shuffle-tests.factor
new file mode 100755
index 0000000000..b5168b903c
--- /dev/null
+++ b/basis/shuffle/shuffle-tests.factor
@@ -0,0 +1,4 @@
+USING: shuffle tools.test ;
+
+[ 8 ] [ 5 6 7 8 3nip ] unit-test
+[ 3 1 2 3 ] [ 1 2 3 tuckd ] unit-test
diff --git a/basis/shuffle/shuffle.factor b/basis/shuffle/shuffle.factor
new file mode 100644
index 0000000000..9a0dfe0e88
--- /dev/null
+++ b/basis/shuffle/shuffle.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2007 Chris Double, Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel generalizations ;
+
+IN: shuffle
+
+: 2swap ( x y z t -- z t x y ) rot >r rot r> ; inline
+
+: nipd ( a b c -- b c ) rot drop ; inline
+
+: 3nip ( a b c d -- d ) 3 nnip ; inline
+
+: 4nip ( a b c d e -- e ) 4 nnip ; inline
+
+: 4dup ( a b c d -- a b c d a b c d ) 4 ndup ; inline
+
+: 4drop ( a b c d -- ) 3drop drop ; inline
+
+: tuckd ( x y z -- z x y z ) 2 ntuck ; inline
diff --git a/extra/shuffle/summary.txt b/basis/shuffle/summary.txt
similarity index 100%
rename from extra/shuffle/summary.txt
rename to basis/shuffle/summary.txt
diff --git a/extra/shuffle/tags.txt b/basis/shuffle/tags.txt
similarity index 100%
rename from extra/shuffle/tags.txt
rename to basis/shuffle/tags.txt
diff --git a/extra/smtp/authors.txt b/basis/smtp/authors.txt
similarity index 100%
rename from extra/smtp/authors.txt
rename to basis/smtp/authors.txt
diff --git a/extra/smtp/server/server.factor b/basis/smtp/server/server.factor
similarity index 96%
rename from extra/smtp/server/server.factor
rename to basis/smtp/server/server.factor
index 824651030d..a6a8bb2cca 100755
--- a/extra/smtp/server/server.factor
+++ b/basis/smtp/server/server.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2007 Elie CHAFTARI
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators kernel prettyprint io io.timeouts io.server
+USING: combinators kernel prettyprint io io.timeouts
 sequences namespaces io.sockets continuations calendar
 io.encodings.ascii io.streams.duplex destructors ;
 IN: smtp.server
diff --git a/basis/smtp/smtp-docs.factor b/basis/smtp/smtp-docs.factor
new file mode 100644
index 0000000000..435b04504d
--- /dev/null
+++ b/basis/smtp/smtp-docs.factor
@@ -0,0 +1,40 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel quotations help.syntax help.markup
+io.sockets strings calendar ;
+IN: smtp
+
+HELP: smtp-server
+{ $description "Holds an " { $link inet } " object with the address of an SMTP server." } ;
+
+HELP: smtp-read-timeout
+{ $description "Holds an " { $link duration } " object that specifies how long to wait for a response from the SMTP server." } ;
+
+HELP: with-smtp-connection
+{ $values { "quot" quotation } }
+{ $description "Connects to an SMTP server stored in " { $link smtp-server } " and calls the quotation." } ;
+
+HELP: <email>
+{ $values { "email" email } }
+{ $description "Creates an empty " { $link email } " object." } ;
+
+HELP: send-email
+{ $values { "email" email } }
+{ $description "Sends an " { $link email } " object to an STMP server stored in the " { $link smtp-server } " variable.  The required slots are " { $slot "from" } " and " { $slot "to" } "." }
+{ $examples
+    { $unchecked-example "USING: accessors smtp ;"
+    "<email>"
+    "    \"groucho@marx.bros\" >>from"
+    "    { \"chico@marx.bros\" \"harpo@marx.bros\" } >>to"
+    "    { \"gummo@marx.bros\" } >>cc"
+    "    { \"zeppo@marx.bros\" } >>bcc"
+    "    \"Pickup line\" >>subject"
+    "    \"If I said you had a beautiful body, would you hold it against me?\" >>body"
+    "send-email"
+    ""
+    }
+} ;
+
+ARTICLE: "smtp" "SMTP Client Library"
+"Sending an email:"
+{ $subsection send-email } ;
diff --git a/extra/smtp/smtp-tests.factor b/basis/smtp/smtp-tests.factor
similarity index 88%
rename from extra/smtp/smtp-tests.factor
rename to basis/smtp/smtp-tests.factor
index 5d350d80c4..f8b321fdac 100755
--- a/extra/smtp/smtp-tests.factor
+++ b/basis/smtp/smtp-tests.factor
@@ -1,14 +1,8 @@
 USING: smtp tools.test io.streams.string io.sockets threads
 smtp.server kernel sequences namespaces logging accessors
-assocs sorting ;
+assocs sorting smtp.private ;
 IN: smtp.tests
 
-[ t ] [
-    <email>
-    dup clone "a" "b" set-header drop
-    headers>> assoc-empty?
-] unit-test
-
 { 0 0 } [ [ ] with-smtp-connection ] must-infer-as
 
 [ "hello\nworld" validate-address ] must-fail
@@ -60,12 +54,13 @@ IN: smtp.tests
             "Ed <dharmatech@factorcode.org>"
         } >>to
         "Doug <erg@factorcode.org>" >>from
-    prepare
-    dup headers>> >alist sort-keys [
-        drop { "Date" "Message-Id" } member? not
-    ] assoc-filter
-    over to>>
-    rot from>>
+    [
+        email>headers sort-keys [
+            drop { "Date" "Message-Id" } member? not
+        ] assoc-filter
+    ]
+    [ to>> [ extract-email ] map ]
+    [ from>> extract-email ] tri
 ] unit-test
 
 [ ] [ [ 4321 mock-smtp-server ] "SMTP server" spawn drop ] unit-test
diff --git a/basis/smtp/smtp.factor b/basis/smtp/smtp.factor
new file mode 100755
index 0000000000..fa98c7a947
--- /dev/null
+++ b/basis/smtp/smtp.factor
@@ -0,0 +1,186 @@
+! Copyright (C) 2007, 2008 Elie CHAFTARI, Dirk Vleugels,
+! Slava Pestov, Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays namespaces io io.timeouts kernel logging
+io.sockets sequences combinators splitting assocs strings
+math.parser random system calendar io.encodings.ascii summary
+calendar.format accessors sets hashtables ;
+IN: smtp
+
+SYMBOL: smtp-domain
+SYMBOL: smtp-server     "localhost" "smtp" <inet> smtp-server set-global
+SYMBOL: smtp-read-timeout    1 minutes smtp-read-timeout set-global
+SYMBOL: esmtp           t esmtp set-global
+
+LOG: log-smtp-connection NOTICE ( addrspec -- )
+
+: with-smtp-connection ( quot -- )
+    smtp-server get
+    dup log-smtp-connection
+    ascii [
+        smtp-domain [ host-name or ] change
+        smtp-read-timeout get timeouts
+        call
+    ] with-client ; inline
+
+TUPLE: email
+    { from string }
+    { to array }
+    { cc array }
+    { bcc array }
+    { subject string }
+    { body string } ;
+
+: <email> ( -- email ) email new ;
+
+<PRIVATE
+: crlf ( -- ) "\r\n" write ;
+
+: command ( string -- ) write crlf flush ;
+
+: helo ( -- )
+    esmtp get "EHLO " "HELO " ? host-name append command ;
+
+ERROR: bad-email-address email ;
+
+: validate-address ( string -- string' )
+    #! Make sure we send funky stuff to the server by accident.
+    dup "\r\n>" intersect empty?
+    [ bad-email-address ] unless ;
+
+: mail-from ( fromaddr -- )
+    "MAIL FROM:<" swap validate-address ">" 3append command ;
+
+: rcpt-to ( to -- )
+    "RCPT TO:<" swap validate-address ">" 3append command ;
+
+: data ( -- )
+    "DATA" command ;
+
+ERROR: message-contains-dot message ;
+
+M: message-contains-dot summary ( obj -- string )
+    drop
+    "Message cannot contain . on a line by itself" ;
+
+: validate-message ( msg -- msg' )
+    "." over member?
+    [ message-contains-dot ] when ;
+
+: send-body ( body -- )
+    string-lines
+    validate-message
+    [ write crlf ] each
+    "." command ;
+
+: quit ( -- )
+    "QUIT" command ;
+
+LOG: smtp-response DEBUG
+
+ERROR: smtp-error message ;
+ERROR: smtp-server-busy < smtp-error ;
+ERROR: smtp-syntax-error < smtp-error ;
+ERROR: smtp-command-not-implemented < smtp-error ;
+ERROR: smtp-bad-authentication < smtp-error ;
+ERROR: smtp-mailbox-unavailable < smtp-error ;
+ERROR: smtp-user-not-local < smtp-error ;
+ERROR: smtp-exceeded-storage-allocation < smtp-error ;
+ERROR: smtp-bad-mailbox-name < smtp-error ;
+ERROR: smtp-transaction-failed < smtp-error ;
+
+: check-response ( response -- )
+    dup smtp-response
+    {
+        { [ dup "bye" head? ] [ drop ] }
+        { [ dup "220" head? ] [ drop ] }
+        { [ dup "235" swap subseq? ] [ drop ] }
+        { [ dup "250" head? ] [ drop ] }
+        { [ dup "221" head? ] [ drop ] }
+        { [ dup "354" head? ] [ drop ] }
+        { [ dup "4" head? ] [ smtp-server-busy ] }
+        { [ dup "500" head? ] [ smtp-syntax-error ] }
+        { [ dup "501" head? ] [ smtp-command-not-implemented ] }
+        { [ dup "50" head? ] [ smtp-syntax-error ] }
+        { [ dup "53" head? ] [ smtp-bad-authentication ] }
+        { [ dup "550" head? ] [ smtp-mailbox-unavailable ] }
+        { [ dup "551" head? ] [ smtp-user-not-local ] }
+        { [ dup "552" head? ] [ smtp-exceeded-storage-allocation ] }
+        { [ dup "553" head? ] [ smtp-bad-mailbox-name ] }
+        { [ dup "554" head? ] [ smtp-transaction-failed ] }
+        [ smtp-error ]
+    } cond ;
+
+: multiline? ( response -- boolean )
+    3 swap ?nth CHAR: - = ;
+
+: process-multiline ( multiline -- response )
+    >r readln r> 2dup " " append head? [
+        drop dup smtp-response
+    ] [
+        swap check-response process-multiline
+    ] if ;
+
+: receive-response ( -- response )
+    readln
+    dup multiline? [ 3 head process-multiline ] when ;
+
+: get-ok ( -- ) receive-response check-response ;
+
+ERROR: invalid-header-string string ;
+
+: validate-header ( string -- string' )
+    dup "\r\n" intersect empty?
+    [ invalid-header-string ] unless ;
+
+: write-header ( key value -- )
+    [ validate-header write ]
+    [ ": " write validate-header write ] bi* crlf ;
+
+: write-headers ( assoc -- )
+    [ write-header ] assoc-each ;
+
+: message-id ( -- string )
+    [
+        "<" %
+        64 random-bits #
+        "-" %
+        millis #
+        "@" %
+        smtp-domain get [ host-name ] unless* %
+        ">" %
+    ] "" make ;
+
+: extract-email ( recepient -- email )
+    ! This could be much smarter.
+    " " last-split1 swap or "<" ?head drop ">" ?tail drop ;
+
+: email>headers ( email -- hashtable )
+    [
+        {
+            [ from>> "From" set ]
+            [ to>> ", " join "To" set ]
+            [ cc>> ", " join [ "Cc" set ] unless-empty ]
+            [ subject>> "Subject" set ]
+        } cleave
+        now timestamp>rfc822 "Date" set
+        message-id "Message-Id" set
+    ] { } make-assoc ;
+
+: (send-email) ( headers email -- )
+    [
+        helo get-ok
+        dup from>> extract-email mail-from get-ok
+        dup to>> [ extract-email rcpt-to get-ok ] each
+        dup cc>> [ extract-email rcpt-to get-ok ] each
+        dup bcc>> [ extract-email rcpt-to get-ok ] each
+        data get-ok
+        swap write-headers
+        crlf
+        body>> send-body get-ok
+        quit get-ok
+    ] with-smtp-connection ;
+PRIVATE>
+
+: send-email ( email -- )
+    [ email>headers ] keep (send-email) ;
diff --git a/extra/smtp/summary.txt b/basis/smtp/summary.txt
similarity index 100%
rename from extra/smtp/summary.txt
rename to basis/smtp/summary.txt
diff --git a/extra/smtp/tags.txt b/basis/smtp/tags.txt
similarity index 100%
rename from extra/smtp/tags.txt
rename to basis/smtp/tags.txt
diff --git a/extra/tuple-arrays/authors.txt b/basis/sorting/insertion/authors.txt
similarity index 100%
rename from extra/tuple-arrays/authors.txt
rename to basis/sorting/insertion/authors.txt
diff --git a/basis/sorting/insertion/insertion-tests.factor b/basis/sorting/insertion/insertion-tests.factor
new file mode 100644
index 0000000000..38b0082ade
--- /dev/null
+++ b/basis/sorting/insertion/insertion-tests.factor
@@ -0,0 +1,4 @@
+IN: sorting.insertion
+USING: sorting.insertion sequences kernel tools.test ;
+
+[ { { 1 1 } { 1 2 } { 2 0 } } ] [ { { 2 0 } { 1 1 } { 1 2 } } dup [ first ] insertion-sort ] unit-test
diff --git a/basis/sorting/insertion/insertion.factor b/basis/sorting/insertion/insertion.factor
new file mode 100644
index 0000000000..8bc12e2704
--- /dev/null
+++ b/basis/sorting/insertion/insertion.factor
@@ -0,0 +1,16 @@
+USING: locals sequences kernel math ;
+IN: sorting.insertion
+
+<PRIVATE
+:: insert ( seq quot: ( elt -- elt' ) n -- )
+    n zero? [
+        n n 1- [ seq nth quot call ] bi@ >= [
+            n n 1- seq exchange
+            seq quot n 1- insert
+        ] unless
+    ] unless ; inline recursive
+PRIVATE>
+
+: insertion-sort ( seq quot -- )
+    ! quot is a transformation on elements
+    over length [ insert ] with with each ; inline
diff --git a/basis/sorting/insertion/summary.txt b/basis/sorting/insertion/summary.txt
new file mode 100644
index 0000000000..a71be797d9
--- /dev/null
+++ b/basis/sorting/insertion/summary.txt
@@ -0,0 +1 @@
+Insertion sort
diff --git a/basis/sorting/insertion/tags.txt b/basis/sorting/insertion/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/sorting/insertion/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/basis/stack-checker/alien/alien.factor b/basis/stack-checker/alien/alien.factor
new file mode 100644
index 0000000000..f81b7fdaa3
--- /dev/null
+++ b/basis/stack-checker/alien/alien.factor
@@ -0,0 +1,84 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences accessors combinators math namespaces
+init sets words
+alien alien.c-types
+stack-checker.backend stack-checker.errors stack-checker.visitor ;
+IN: stack-checker.alien
+
+TUPLE: alien-node-params return parameters abi in-d out-d ;
+
+TUPLE: alien-invoke-params < alien-node-params library function ;
+
+TUPLE: alien-indirect-params < alien-node-params ;
+
+TUPLE: alien-callback-params < alien-node-params quot xt ;
+
+: pop-parameters ( -- seq )
+    pop-literal nip [ expand-constants ] map ;
+
+: param-prep-quot ( node -- quot )
+    parameters>> [ c-type c-type-unboxer-quot ] map spread>quot ;
+
+: alien-stack ( params extra -- )
+    over parameters>> length + consume-d >>in-d
+    dup return>> "void" = 0 1 ? produce-d >>out-d
+    drop ;
+
+: return-prep-quot ( node -- quot )
+    return>> [ [ ] ] [ c-type c-type-boxer-quot ] if-void ;
+
+: infer-alien-invoke ( -- )
+    alien-invoke-params new
+    ! Compile-time parameters
+    pop-parameters >>parameters
+    pop-literal nip >>function
+    pop-literal nip >>library
+    pop-literal nip >>return
+    ! Quotation which coerces parameters to required types
+    dup param-prep-quot recursive-state get infer-quot
+    ! Set ABI
+    dup library>> library [ abi>> ] [ "cdecl" ] if* >>abi
+    ! Magic #: consume exactly the number of inputs
+    dup 0 alien-stack
+    ! Add node to IR
+    dup #alien-invoke,
+    ! Quotation which coerces return value to required type
+    return-prep-quot recursive-state get infer-quot ;
+
+: infer-alien-indirect ( -- )
+    alien-indirect-params new
+    ! Compile-time parameters
+    pop-literal nip >>abi
+    pop-parameters >>parameters
+    pop-literal nip >>return
+    ! Quotation which coerces parameters to required types
+    dup param-prep-quot [ dip ] curry recursive-state get infer-quot
+    ! Magic #: consume the function pointer, too
+    dup 1 alien-stack
+    ! Add node to IR
+    dup #alien-indirect,
+    ! Quotation which coerces return value to required type
+    return-prep-quot recursive-state get infer-quot ;
+
+! Callbacks are registered in a global hashtable. If you clear
+! this hashtable, they will all be blown away by code GC, beware
+SYMBOL: callbacks
+
+[ H{ } clone callbacks set-global ] "alien.compiler" add-init-hook
+
+: register-callback ( word -- ) callbacks get conjoin ;
+
+: callback-bottom ( params -- )
+    xt>> [ [ register-callback ] [ word-xt drop <alien> ] bi ] curry
+    recursive-state get infer-quot ;
+
+: infer-alien-callback ( -- )
+    alien-callback-params new
+    pop-literal nip >>quot
+    pop-literal nip >>abi
+    pop-parameters >>parameters
+    pop-literal nip >>return
+    gensym >>xt
+    dup callback-bottom
+    #alien-callback, ;
diff --git a/extra/io/windows/nt/pipes/authors.txt b/basis/stack-checker/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/windows/nt/pipes/authors.txt
rename to basis/stack-checker/authors.txt
diff --git a/extra/locals/authors.txt b/basis/stack-checker/backend/authors.txt
similarity index 100%
rename from extra/locals/authors.txt
rename to basis/stack-checker/backend/authors.txt
diff --git a/basis/stack-checker/backend/backend.factor b/basis/stack-checker/backend/backend.factor
new file mode 100755
index 0000000000..f4cd2c4a8e
--- /dev/null
+++ b/basis/stack-checker/backend/backend.factor
@@ -0,0 +1,191 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry arrays generic io io.streams.string kernel math
+namespaces parser prettyprint sequences strings vectors words
+quotations effects classes continuations debugger assocs
+combinators compiler.errors accessors math.order definitions
+sets generic.standard.engines.tuple stack-checker.state
+stack-checker.visitor stack-checker.errors ;
+IN: stack-checker.backend
+
+: push-d ( obj -- ) meta-d get push ;
+
+: pop-d  ( -- obj )
+    meta-d get [
+        <value> dup 1array #introduce, d-in inc
+    ] [ pop ] if-empty ;
+
+: peek-d ( -- obj ) pop-d dup push-d ;
+
+: consume-d ( n -- seq ) [ pop-d ] replicate reverse ;
+
+: output-d ( values -- ) meta-d get push-all ;
+
+: ensure-d ( n -- values ) consume-d dup output-d ;
+
+: make-values ( n -- values )
+    [ <value> ] replicate ;
+
+: produce-d ( n -- values )
+    make-values dup meta-d get push-all ;
+
+: push-r ( obj -- ) meta-r get push ;
+
+: pop-r  ( -- obj )
+    meta-r get dup empty?
+    [ too-many-r> inference-error ] [ pop ] if ;
+
+: consume-r ( n -- seq ) [ pop-r ] replicate reverse ;
+
+: output-r ( seq -- ) meta-r get push-all ;
+
+: pop-literal ( -- rstate obj )
+    pop-d
+    [ 1array #drop, ]
+    [ literal [ recursion>> ] [ value>> ] bi ] bi ;
+
+GENERIC: apply-object ( obj -- )
+
+: push-literal ( obj -- )
+    dup <literal> make-known [ nip push-d ] [ #push, ] 2bi ;
+
+M: wrapper apply-object
+    wrapped>>
+    [ dup word? [ called-dependency depends-on ] [ drop ] if ]
+    [ push-literal ]
+    bi ;
+
+M: object apply-object push-literal ;
+
+: terminate ( -- )
+    terminated? on meta-d get clone meta-r get clone #terminate, ;
+
+: infer-quot ( quot rstate -- )
+    recursive-state get [
+        recursive-state set
+        [ apply-object terminated? get not ] all? drop
+    ] dip recursive-state set ;
+
+: infer-quot-recursive ( quot word label -- )
+    2array recursive-state get swap prefix infer-quot ;
+
+: time-bomb ( error -- )
+    '[ , throw ] recursive-state get infer-quot ;
+
+: bad-call ( -- )
+    "call must be given a callable" time-bomb ;
+
+: infer-literal-quot ( literal -- )
+    dup recursive-quotation? [
+        value>> recursive-quotation-error inference-error
+    ] [
+        dup value>> callable? [
+            [ value>> ]
+            [ [ recursion>> ] keep f 2array prefix ]
+            bi infer-quot
+        ] [
+            drop bad-call
+        ] if
+    ] if ;
+
+: infer->r ( n -- )
+    consume-d dup copy-values [ #>r, ] [ nip output-r ] 2bi ;
+
+: infer-r> ( n -- )
+    consume-r dup copy-values [ #r>, ] [ nip output-d ] 2bi ;
+
+: undo-infer ( -- )
+    recorded get [ f "inferred-effect" set-word-prop ] each ;
+
+: consume/produce ( effect quot -- )
+    #! quot is ( inputs outputs -- )
+    [
+        [
+            [ in>> length consume-d ]
+            [ out>> length produce-d ]
+            bi
+        ] dip call
+    ] [
+        drop
+        terminated?>> [ terminate ] when
+    ] 2bi ; inline
+
+: check->r ( -- )
+    meta-r get empty? terminated? get or
+    [ \ too-many->r inference-error ] unless ;
+
+: end-infer ( -- )
+    check->r
+    meta-d get clone #return, ;
+
+: effect-required? ( word -- ? )
+    {
+        { [ dup inline? ] [ drop f ] }
+        { [ dup deferred? ] [ drop f ] }
+        { [ dup crossref? not ] [ drop f ] }
+        [ def>> [ [ word? ] [ primitive? not ] bi and ] contains? ]
+    } cond ;
+
+: ?missing-effect ( word -- )
+    dup effect-required?
+    [ missing-effect inference-error ] [ drop ] if ;
+
+: check-effect ( word effect -- )
+    over stack-effect {
+        { [ dup not ] [ 2drop ?missing-effect ] }
+        { [ 2dup effect<= ] [ 3drop ] }
+        [ effect-error ]
+    } cond ;
+
+: finish-word ( word -- )
+    current-effect
+    [ check-effect ]
+    [ drop recorded get push ]
+    [ "inferred-effect" set-word-prop ]
+    2tri ;
+
+: cannot-infer-effect ( word -- * )
+    "cannot-infer" word-prop throw ;
+
+: maybe-cannot-infer ( word quot -- )
+    [ [ "cannot-infer" set-word-prop ] keep throw ] recover ; inline
+
+: infer-word ( word -- effect )
+    [
+        [
+            init-inference
+            init-known-values
+            stack-visitor off
+            dependencies off
+            generic-dependencies off
+            [ [ def>> ] [ ] [ ] tri infer-quot-recursive end-infer ]
+            [ finish-word current-effect ]
+            bi
+        ] with-scope
+    ] maybe-cannot-infer ;
+
+: apply-word/effect ( word effect -- )
+    swap '[ , #call, ] consume/produce ;
+
+: required-stack-effect ( word -- effect )
+    dup stack-effect [ ] [ \ missing-effect inference-error ] ?if ;
+
+: call-recursive-word ( word -- )
+    dup required-stack-effect apply-word/effect ;
+
+: cached-infer ( word -- )
+    dup "inferred-effect" word-prop apply-word/effect ;
+
+: with-infer ( quot -- effect visitor )
+    [
+        [
+            V{ } clone recorded set
+            init-inference
+            init-known-values
+            stack-visitor off
+            call
+            end-infer
+            current-effect
+            stack-visitor get
+        ] [ ] [ undo-infer ] cleanup
+    ] with-scope ; inline
diff --git a/core/inference/backend/summary.txt b/basis/stack-checker/backend/summary.txt
similarity index 100%
rename from core/inference/backend/summary.txt
rename to basis/stack-checker/backend/summary.txt
diff --git a/extra/macros/authors.txt b/basis/stack-checker/branches/authors.txt
similarity index 100%
rename from extra/macros/authors.txt
rename to basis/stack-checker/branches/authors.txt
diff --git a/basis/stack-checker/branches/branches.factor b/basis/stack-checker/branches/branches.factor
new file mode 100644
index 0000000000..4685483103
--- /dev/null
+++ b/basis/stack-checker/branches/branches.factor
@@ -0,0 +1,109 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry vectors sequences assocs math accessors kernel
+combinators quotations namespaces stack-checker.state
+stack-checker.backend stack-checker.errors stack-checker.visitor
+;
+IN: stack-checker.branches
+
+: balanced? ( pairs -- ? )
+    [ second ] filter [ first2 length - ] map all-equal? ;
+
+SYMBOL: +bottom+
+
+: unify-inputs ( max-d-in d-in meta-d -- new-meta-d )
+    dup [ [ - +bottom+ <repetition> ] dip append ] [ 3drop f ] if ;
+
+: pad-with-bottom ( seq -- newseq )
+    dup empty? [
+        dup [ length ] map supremum
+        '[ , +bottom+ pad-left ] map
+    ] unless ;
+
+: phi-inputs ( max-d-in pairs -- newseq )
+    dup empty? [ nip ] [
+        swap '[ , _ first2 unify-inputs ] map
+        pad-with-bottom
+    ] if ;
+
+: remove-bottom ( seq -- seq' )
+    +bottom+ swap remove ;
+
+: unify-values ( values -- phi-out )
+    remove-bottom
+    [ <value> ] [
+        [ known ] map dup all-eq?
+        [ first make-known ] [ drop <value> ] if
+    ] if-empty ;
+
+: phi-outputs ( phi-in -- stack )
+    flip [ unify-values ] map ;
+
+SYMBOL: quotations
+
+: unify-branches ( ins stacks -- in phi-in phi-out )
+    zip [ 0 { } { } ] [
+        [ keys supremum ] [ ] [ balanced? ] tri
+        [ dupd phi-inputs dup phi-outputs ]
+        [ quotations get unbalanced-branches-error ]
+        if
+    ] if-empty ;
+
+: branch-variable ( seq symbol -- seq )
+    '[ , _ at ] map ;
+
+: active-variable ( seq symbol -- seq )
+    [ [ terminated? over at [ drop f ] when ] map ] dip
+    branch-variable ;
+
+: datastack-phi ( seq -- phi-in phi-out )
+    [ d-in branch-variable ] [ meta-d active-variable ] bi
+    unify-branches
+    [ d-in set ] [ ] [ dup >vector meta-d set ] tri* ;
+
+: terminated-phi ( seq -- terminated )
+    terminated? branch-variable ;
+
+: terminate-branches ( seq -- )
+    [ terminated? swap at ] all? [ terminate ] when ;
+
+: compute-phi-function ( seq -- )
+    [ quotation active-variable sift quotations set ]
+    [ [ datastack-phi ] [ terminated-phi ] bi #phi, ]
+    [ terminate-branches ]
+    tri ;
+
+: copy-inference ( -- )
+    meta-d [ clone ] change
+    V{ } clone meta-r set
+    d-in [ ] change ;
+
+: infer-branch ( literal -- namespace )
+    [
+        copy-inference
+        nest-visitor
+        [ value>> quotation set ] [ infer-literal-quot ] bi
+        check->r
+    ] H{ } make-assoc ; inline
+
+: infer-branches ( branches -- input children data )
+    [ pop-d ] dip
+    [ infer-branch ] map
+    [ stack-visitor branch-variable ] keep ;
+
+: (infer-if) ( branches -- )
+    infer-branches [ first2 #if, ] dip compute-phi-function ;
+
+: infer-if ( -- )
+    2 consume-d
+    dup [ known [ curried? ] [ composed? ] bi or ] contains? [
+        output-d
+        [ rot [ drop call ] [ nip call ] if ]
+        recursive-state get infer-quot
+    ] [
+        [ #drop, ] [ [ literal ] map (infer-if) ] bi
+    ] if ;
+
+: infer-dispatch ( -- )
+    pop-literal nip [ <literal> ] map
+    infer-branches [ #dispatch, ] dip compute-phi-function ;
diff --git a/extra/math/complex/authors.txt b/basis/stack-checker/errors/authors.txt
similarity index 100%
rename from extra/math/complex/authors.txt
rename to basis/stack-checker/errors/authors.txt
diff --git a/basis/stack-checker/errors/errors-docs.factor b/basis/stack-checker/errors/errors-docs.factor
new file mode 100644
index 0000000000..f4d7c80e13
--- /dev/null
+++ b/basis/stack-checker/errors/errors-docs.factor
@@ -0,0 +1,121 @@
+USING: help.markup help.syntax kernel effects sequences
+sequences.private words ;
+IN: stack-checker.errors
+
+HELP: literal-expected
+{ $error-description "Thrown when inference encounters a " { $link call } " or " { $link if } " being applied to a value which is not known to be a literal. Such a form can have an arbitrary stack effect, and does not compile." }
+{ $notes "This error will be thrown when compiling any combinator, such as " { $link each } ". However, words calling combinators can compile if the combinator is declared " { $link POSTPONE: inline } " and the quotation being passed in is a literal." }
+{ $examples
+    "In this example, words calling " { $snippet "literal-expected-example" } " will compile, even if " { $snippet "literal-expected-example" } " does not compile itself:"
+    { $code
+        ": literal-expected-example ( quot -- )"
+        "    [ call ] [ call ] bi ; inline"
+    }
+} ;
+
+HELP: unbalanced-branches-error
+{ $values { "in" "a sequence of integers" } { "out" "a sequence of integers" } }
+{ $description "Throws an " { $link unbalanced-branches-error } "." }
+{ $error-description "Thrown when inference encounters an " { $link if } " or " { $link dispatch } " where the branches do not all exit with the same stack height." }
+{ $notes "Conditionals with variable stack effects are considered to be bad style and should be avoided since they do not compile."
+$nl
+"If this error comes up when inferring the stack effect of a recursive word, check the word's stack effect declaration; it might be wrong." }
+{ $examples
+    { $code
+        ": unbalanced-branches-example ( a b c -- )"
+        "    [ + ] [ dup ] if ;"
+    }
+} ;
+
+HELP: too-many->r
+{ $error-description "Thrown if inference notices a quotation pushing elements on the retain stack without popping them at the end." }
+{ $examples
+    { $code
+        ": too-many->r-example ( a b -- )"
+        "    >r 3 + >r ;"
+    }
+} ;
+
+HELP: too-many-r>
+{ $error-description "Thrown if inference notices a quotation popping elements from the return stack it did not place there." }
+{ $examples
+    { $code
+        ": too-many-r>-example ( a b -- )"
+        "    r> 3 + >r ;"
+    }
+} ;
+
+HELP: missing-effect
+{ $error-description "Thrown when inference encounters a word lacking a stack effect declaration. Stack effects of words must be declared, with the exception of words which only push literals on the stack." }
+{ $examples
+    { $code
+        ": missing-effect-example"
+        "    + * ;"
+    }
+} ;
+
+HELP: effect-error
+{ $values { "word" word } { "effect" "an instance of " { $link effect } } }
+{ $description "Throws an " { $link effect-error } "." }
+{ $error-description "Thrown when a word's inferred stack effect does not match its declared stack effect." } ;
+
+HELP: recursive-quotation-error
+{ $error-description "Thrown when a quotation calls itself, directly or indirectly, within the same word. Stack effect inference becomes equivalent to the halting problem if quotation recursion has to be taken into account, hence it is not permitted." }
+{ $examples
+    "Here is an example of quotation recursion:"
+    { $code "[ [ dup call ] dup call ] infer." }
+} ;
+
+HELP: undeclared-recursion-error
+{ $error-description "Thrown when an " { $link POSTPONE: inline } " word which is not declared " { $link POSTPONE: recursive } " calls itself, directly or indirectly. The " { $link POSTPONE: recursive } " declaration is mandatory for such words." } ;
+
+HELP: diverging-recursion-error
+{ $error-description "Thrown when stack effect inference determines that a recursive word might take an arbitrary number of values from the stack." }
+{ $notes "Such words do not have a static stack effect and most likely indicate programmer error." }
+{ $examples
+    { $code
+        ": diverging-recursion-example ( -- )"
+        "    [ diverging-recursion-example f ] when ; inline recursive"
+    }
+} ;
+
+HELP: unbalanced-recursion-error
+{ $error-description "Thrown when stack effect inference determines that an inline recursive word has an incorrect stack effect declaration." }
+{ $examples
+    { $code
+        ": unbalanced-recursion-example ( quot: ( -- ? ) -- b )"
+        "    dup call [ unbalanced-recursion-example ] [ drop ] if ;"
+        "    inline recursive"
+    }
+} ;
+
+HELP: inconsistent-recursive-call-error
+{ $error-description "Thrown when stack effect inference determines that an inline recursive word calls itself with a different set of quotation parameters than were input." }
+{ $examples
+    { $code
+        ": inconsistent-recursive-call-example ( quot: ( -- ? ) -- b )"
+        "    [ not ] compose inconsistent-recursive-call-example ; inline recursive"
+    }
+} ;
+
+ARTICLE: "inference-errors" "Inference warnings and errors"
+"Main wrapper for all inference warnings and errors:"
+{ $subsection inference-error }
+"Inference warnings:"
+{ $subsection literal-expected }
+"Inference errors:"
+{ $subsection recursive-quotation-error }
+{ $subsection unbalanced-branches-error }
+{ $subsection effect-error }
+{ $subsection missing-effect }
+"Inference errors for inline recursive words:"
+{ $subsection undeclared-recursion-error }
+{ $subsection diverging-recursion-error }
+{ $subsection unbalanced-recursion-error }
+{ $subsection inconsistent-recursive-call-error }
+"Retain stack usage errors:"
+{ $subsection too-many->r }
+{ $subsection too-many-r> }
+"See " { $link "shuffle-words" } " for retain stack usage conventions. This error can only occur if your code calls " { $link >r } " and " { $link r> } " directly. The " { $link dip } " combinator is safer to use because there is no way to leave the retain stack in an unbalanced state." ;
+
+ABOUT: "inference-errors"
diff --git a/basis/stack-checker/errors/errors.factor b/basis/stack-checker/errors/errors.factor
new file mode 100644
index 0000000000..3d92aea3e8
--- /dev/null
+++ b/basis/stack-checker/errors/errors.factor
@@ -0,0 +1,112 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel generic sequences prettyprint io words arrays
+summary effects debugger assocs accessors namespaces
+compiler.errors ;
+IN: stack-checker.errors
+
+SYMBOL: recursive-state
+
+TUPLE: inference-error error type rstate ;
+
+M: inference-error compiler-error-type type>> ;
+
+M: inference-error error-help error>> error-help ;
+
+: (inference-error) ( ... class type -- * )
+    >r boa r>
+    recursive-state get
+    \ inference-error boa throw ; inline
+
+: inference-error ( ... class -- * )
+    +error+ (inference-error) ; inline
+
+: inference-warning ( ... class -- * )
+    +warning+ (inference-error) ; inline
+
+M: inference-error error.
+    [
+        rstate>>
+        [ "Nesting:" print stack. ] unless-empty
+    ] [ error>> error. ] bi ;
+
+TUPLE: literal-expected ;
+
+M: literal-expected summary
+    drop "Literal value expected" ;
+
+TUPLE: unbalanced-branches-error branches quots ;
+
+: unbalanced-branches-error ( branches quots -- * )
+    \ unbalanced-branches-error inference-error ;
+
+M: unbalanced-branches-error error.
+    "Unbalanced branches:" print
+    [ quots>> ] [ branches>> [ length <effect> ] { } assoc>map ] bi zip
+    [ [ first pprint-short bl ] [ second effect>string print ] bi ] each ;
+
+TUPLE: too-many->r ;
+
+M: too-many->r summary
+    drop
+    "Quotation pushes elements on retain stack without popping them" ;
+
+TUPLE: too-many-r> ;
+
+M: too-many-r> summary
+    drop
+    "Quotation pops retain stack elements which it did not push" ;
+
+TUPLE: missing-effect word ;
+
+M: missing-effect error.
+    "The word " write
+    word>> pprint
+    " must declare a stack effect" print ;
+
+TUPLE: effect-error word inferred declared ;
+
+: effect-error ( word inferred declared -- * )
+    \ effect-error inference-error ;
+
+M: effect-error error.
+    "Stack effects of the word " write
+    [ word>> pprint " do not match." print ]
+    [ "Inferred: " write inferred>> effect>string . ]
+    [ "Declared: " write declared>> effect>string . ] tri ;
+
+TUPLE: recursive-quotation-error quot ;
+
+M: recursive-quotation-error error.
+    "The quotation " write
+    quot>> pprint
+    " calls itself." print
+    "Stack effect inference is undecidable when quotation-level recursion is permitted." print ;
+
+TUPLE: undeclared-recursion-error word ;
+
+M: undeclared-recursion-error error.
+    "The inline recursive word " write
+    word>> pprint
+    " must be declared recursive" print ;
+
+TUPLE: diverging-recursion-error word ;
+
+M: diverging-recursion-error error.
+    "The recursive word " write
+    word>> pprint
+    " digs arbitrarily deep into the stack" print ;
+
+TUPLE: unbalanced-recursion-error word height ;
+
+M: unbalanced-recursion-error error.
+    "The recursive word " write
+    word>> pprint
+    " leaves with the stack having the wrong height" print ;
+
+TUPLE: inconsistent-recursive-call-error word ;
+
+M: inconsistent-recursive-call-error error.
+    "The recursive word " write
+    word>> pprint
+    " calls itself with a different set of quotation parameters than were input" print ;
diff --git a/core/inference/errors/summary.txt b/basis/stack-checker/errors/summary.txt
similarity index 100%
rename from core/inference/errors/summary.txt
rename to basis/stack-checker/errors/summary.txt
diff --git a/extra/math/constants/authors.txt b/basis/stack-checker/inlining/authors.txt
similarity index 100%
rename from extra/math/constants/authors.txt
rename to basis/stack-checker/inlining/authors.txt
diff --git a/basis/stack-checker/inlining/inlining.factor b/basis/stack-checker/inlining/inlining.factor
new file mode 100644
index 0000000000..07ff016b2d
--- /dev/null
+++ b/basis/stack-checker/inlining/inlining.factor
@@ -0,0 +1,153 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry namespaces assocs kernel sequences words accessors
+definitions math math.order effects classes arrays combinators
+vectors arrays
+stack-checker.state
+stack-checker.visitor
+stack-checker.backend
+stack-checker.branches
+stack-checker.errors
+stack-checker.known-words ;
+IN: stack-checker.inlining
+
+! Code to handle inline words. Much of the complexity stems from
+! having to handle recursive inline words.
+
+: (inline-word) ( word label -- )
+    [ [ def>> ] keep ] dip infer-quot-recursive ;
+
+TUPLE: inline-recursive < identity-tuple
+id
+word
+enter-out enter-recursive
+return calls
+fixed-point
+introductions
+loop? ;
+
+M: inline-recursive hashcode* id>> hashcode* ;
+
+: inlined-block? ( word -- ? ) "inlined-block" word-prop ;
+
+: <inline-recursive> ( word -- label )
+    inline-recursive new
+        gensym dup t "inlined-block" set-word-prop >>id
+        swap >>word ;
+
+: quotation-param? ( obj -- ? )
+    dup pair? [ second effect? ] [ drop f ] if ;
+
+: make-copies ( values effect-in -- values' )
+    [ length cut* ] keep
+    [ quotation-param? [ copy-value ] [ drop <value> ] if ] 2map
+    [ make-values ] dip append ;
+
+SYMBOL: enter-in
+SYMBOL: enter-out
+
+: prepare-stack ( word -- )
+    required-stack-effect in>>
+    [ length ensure-d drop ] [
+        meta-d get clone enter-in set
+        meta-d get swap make-copies enter-out set
+    ] bi ;
+
+: emit-enter-recursive ( label -- )
+    enter-out get >>enter-out
+    enter-in get enter-out get #enter-recursive,
+    enter-out get >vector meta-d set ;
+
+: entry-stack-height ( label -- stack )
+    enter-out>> length ;
+
+: check-return ( word label -- )
+    2dup
+    [ stack-effect effect-height ]
+    [ entry-stack-height current-stack-height swap - ]
+    bi*
+    = [ 2drop ] [
+        terminated? get [ 2drop ] [
+            word>> current-stack-height
+            unbalanced-recursion-error inference-error
+        ] if
+    ] if ;
+
+: end-recursive-word ( word label -- )
+    [ check-return ]
+    [ meta-d get dup copy-values dup meta-d set #return-recursive, ]
+    bi ;
+
+: recursive-word-inputs ( label -- n )
+    entry-stack-height d-in get + ;
+
+: (inline-recursive-word) ( word -- label in out visitor terminated? )
+    dup prepare-stack
+    [
+        init-inference
+        nest-visitor
+
+        dup <inline-recursive>
+        [ dup emit-enter-recursive (inline-word) ]
+        [ end-recursive-word ]
+        [ nip ]
+        2tri
+
+        check->r
+
+        dup recursive-word-inputs
+        meta-d get
+        stack-visitor get
+        terminated? get
+    ] with-scope ;
+
+: inline-recursive-word ( word -- )
+    (inline-recursive-word)
+    [ [ consume-d ] [ output-d ] [ ] tri* #recursive, ] dip
+    [ terminate ] when ;
+
+: check-call-height ( label -- )
+    dup entry-stack-height current-stack-height >
+    [ word>> diverging-recursion-error inference-error ] [ drop ] if ;
+
+: trim-stack ( label seq -- stack )
+    swap word>> required-stack-effect in>> length tail* ;
+
+: call-site-stack ( label -- stack )
+    meta-d get trim-stack ;
+
+: trimmed-enter-out ( label -- stack )
+    dup enter-out>> trim-stack ;
+
+: check-call-site-stack ( label -- )
+    [ ] [ call-site-stack ] [ trimmed-enter-out ] tri
+    [ dup known [ [ known ] bi@ = ] [ 2drop t ] if ] 2all?
+    [ drop ] [ word>> inconsistent-recursive-call-error inference-error ] if ;
+
+: check-call ( label -- )
+    [ check-call-height ] [ check-call-site-stack ] bi ;
+
+: adjust-stack-effect ( effect -- effect' )
+    [ in>> ] [ out>> ] bi
+    meta-d get length pick length [-]
+    object <repetition> '[ , prepend ] bi@
+    <effect> ;
+
+: call-recursive-inline-word ( word -- )
+    dup "recursive" word-prop [
+        [ required-stack-effect adjust-stack-effect ] [ ] [ recursive-label ] tri
+        [ 2nip check-call ] [ nip '[ , #call-recursive, ] consume/produce ] 3bi
+    ] [ undeclared-recursion-error inference-error ] if ;
+
+: inline-word ( word -- )
+    [ inlined-dependency depends-on ]
+    [
+        {
+            { [ dup inline-recursive-label ] [ call-recursive-inline-word ] }
+            { [ dup "recursive" word-prop ] [ inline-recursive-word ] }
+            [ dup (inline-word) ]
+        } cond
+    ] bi ;
+
+M: word apply-object
+    dup inline? [ inline-word ] [ non-inline-word ] if ;
diff --git a/extra/math/functions/authors.txt b/basis/stack-checker/known-words/authors.txt
similarity index 100%
rename from extra/math/functions/authors.txt
rename to basis/stack-checker/known-words/authors.txt
diff --git a/basis/stack-checker/known-words/known-words.factor b/basis/stack-checker/known-words/known-words.factor
new file mode 100755
index 0000000000..80e888a3e9
--- /dev/null
+++ b/basis/stack-checker/known-words/known-words.factor
@@ -0,0 +1,605 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry accessors alien alien.accessors arrays byte-arrays
+classes sequences.private continuations.private effects generic
+hashtables hashtables.private io io.backend io.files
+io.files.private io.streams.c kernel kernel.private math
+math.private memory namespaces namespaces.private parser
+prettyprint quotations quotations.private sbufs sbufs.private
+sequences sequences.private slots.private strings
+strings.private system threads.private classes.tuple
+classes.tuple.private vectors vectors.private words definitions
+words.private assocs summary compiler.units system.private
+combinators locals.backend words.private quotations.private
+stack-checker.state
+stack-checker.backend
+stack-checker.branches
+stack-checker.errors
+stack-checker.transforms
+stack-checker.visitor
+stack-checker.alien ;
+IN: stack-checker.known-words
+
+: infer-primitive ( word -- )
+    dup
+    [ "input-classes" word-prop ]
+    [ "default-output-classes" word-prop ] bi <effect>
+    apply-word/effect ;
+
+{
+    { drop  (( x     --             )) }
+    { 2drop (( x y   --             )) }
+    { 3drop (( x y z --             )) }
+    { dup   (( x     -- x x         )) }
+    { 2dup  (( x y   -- x y x y     )) }
+    { 3dup  (( x y z -- x y z x y z )) }
+    { rot   (( x y z -- y z x       )) }
+    { -rot  (( x y z -- z x y       )) }
+    { dupd  (( x y   -- x x y       )) }
+    { swapd (( x y z -- y x z       )) }
+    { nip   (( x y   -- y           )) }
+    { 2nip  (( x y z -- z           )) }
+    { tuck  (( x y   -- y x y       )) }
+    { over  (( x y   -- x y x       )) }
+    { pick  (( x y z -- x y z x     )) }
+    { swap  (( x y   -- y x         )) }
+} [ "shuffle" set-word-prop ] assoc-each
+
+: infer-shuffle ( shuffle -- )
+    [ in>> length consume-d ] keep ! inputs shuffle
+    [ drop ] [ shuffle dup copy-values dup output-d ] 2bi ! inputs outputs copies
+    [ nip ] [ swap zip ] 2bi ! inputs copies mapping
+    #shuffle, ;
+
+: infer-shuffle-word ( word -- )
+    "shuffle" word-prop infer-shuffle ;
+
+: infer-declare ( -- )
+    pop-literal nip
+    [ length ensure-d ] keep zip
+    #declare, ;
+
+GENERIC: infer-call* ( value known -- )
+
+: infer-call ( value -- ) dup known infer-call* ;
+
+M: literal infer-call*
+    [ 1array #drop, ] [ infer-literal-quot ] bi* ;
+
+M: curried infer-call*
+    swap push-d
+    [ uncurry ] recursive-state get infer-quot
+    [ quot>> known pop-d [ set-known ] keep ]
+    [ obj>> known pop-d [ set-known ] keep ] bi
+    push-d infer-call ;
+
+M: composed infer-call*
+    swap push-d
+    [ uncompose ] recursive-state get infer-quot
+    [ quot2>> known pop-d [ set-known ] keep ]
+    [ quot1>> known pop-d [ set-known ] keep ] bi
+    push-d push-d
+    1 infer->r pop-d infer-call
+    terminated? get [ 1 infer-r> pop-d infer-call ] unless ;
+
+M: object infer-call*
+    \ literal-expected inference-warning ;
+
+: infer-curry ( -- )
+    2 consume-d
+    dup first2 <curried> make-known
+    [ push-d ] [ 1array ] bi
+    \ curry #call, ;
+
+: infer-compose ( -- )
+    2 consume-d
+    dup first2 <composed> make-known
+    [ push-d ] [ 1array ] bi
+    \ compose #call, ;
+
+: infer-execute ( -- )
+    pop-literal nip
+    dup word? [
+        apply-object
+    ] [
+        drop
+        "execute must be given a word" time-bomb
+    ] if ;
+
+: infer-<tuple-boa> ( -- )
+    \ <tuple-boa>
+    peek-d literal value>> size>> 1+ { tuple } <effect>
+    apply-word/effect ;
+
+: infer-(throw) ( -- )
+    \ (throw)
+    peek-d literal value>> 2 + f <effect> t >>terminated?
+    apply-word/effect ;
+
+: infer-exit ( -- )
+    \ exit
+    { integer } { } t >>terminated? <effect>
+    apply-word/effect ;
+
+: infer-load-locals ( -- )
+    pop-literal nip
+    [ dup reverse <effect> infer-shuffle ]
+    [ infer->r ]
+    bi ;
+
+: infer-get-local ( -- )
+    pop-literal nip
+    [ infer-r> ]
+    [ dup 0 prefix <effect> infer-shuffle ]
+    [ infer->r ]
+    tri ;
+
+: infer-drop-locals ( -- )
+    pop-literal nip
+    [ infer-r> ]
+    [ { } <effect> infer-shuffle ] bi ;
+
+: infer-special ( word -- )
+    {
+        { \ >r [ 1 infer->r ] }
+        { \ r> [ 1 infer-r> ] }
+        { \ declare [ infer-declare ] }
+        { \ call [ pop-d infer-call ] }
+        { \ (call) [ pop-d infer-call ] }
+        { \ curry [ infer-curry ] }
+        { \ compose [ infer-compose ] }
+        { \ execute [ infer-execute ] }
+        { \ (execute) [ infer-execute ] }
+        { \ if [ infer-if ] }
+        { \ dispatch [ infer-dispatch ] }
+        { \ <tuple-boa> [ infer-<tuple-boa> ] }
+        { \ (throw) [ infer-(throw) ] }
+        { \ exit [ infer-exit ] }
+        { \ load-locals [ infer-load-locals ] }
+        { \ get-local [ infer-get-local ] }
+        { \ drop-locals [ infer-drop-locals ] }
+        { \ do-primitive [ \ do-primitive cannot-infer-effect ] }
+        { \ alien-invoke [ infer-alien-invoke ] }
+        { \ alien-indirect [ infer-alien-indirect ] }
+        { \ alien-callback [ infer-alien-callback ] }
+    } case ;
+
+{
+    >r r> declare call (call) curry compose execute (execute) if
+dispatch <tuple-boa> (throw) load-locals get-local drop-locals
+do-primitive alien-invoke alien-indirect alien-callback
+} [ t "special" set-word-prop ] each
+
+{ call execute dispatch load-locals get-local drop-locals }
+[ t "no-compile" set-word-prop ] each
+
+: non-inline-word ( word -- )
+    dup called-dependency depends-on
+    {
+        { [ dup "shuffle" word-prop ] [ infer-shuffle-word ] }
+        { [ dup "special" word-prop ] [ infer-special ] }
+        { [ dup "primitive" word-prop ] [ infer-primitive ] }
+        { [ dup "transform-quot" word-prop ] [ apply-transform ] }
+        { [ dup "macro" word-prop ] [ apply-macro ] }
+        { [ dup "cannot-infer" word-prop ] [ cannot-infer-effect ] }
+        { [ dup "inferred-effect" word-prop ] [ cached-infer ] }
+        { [ dup recursive-label ] [ call-recursive-word ] }
+        [ dup infer-word apply-word/effect ]
+    } cond ;
+
+: define-primitive ( word inputs outputs -- )
+    [ 2drop t "primitive" set-word-prop ]
+    [ drop "input-classes" set-word-prop ]
+    [ nip "default-output-classes" set-word-prop ]
+    3tri ;
+
+! Stack effects for all primitives
+\ fixnum< { fixnum fixnum } { object } define-primitive
+\ fixnum< make-foldable
+
+\ fixnum<= { fixnum fixnum } { object } define-primitive
+\ fixnum<= make-foldable
+
+\ fixnum> { fixnum fixnum } { object } define-primitive
+\ fixnum> make-foldable
+
+\ fixnum>= { fixnum fixnum } { object } define-primitive
+\ fixnum>= make-foldable
+
+\ eq? { object object } { object } define-primitive
+\ eq? make-foldable
+
+\ bignum>fixnum { bignum } { fixnum } define-primitive
+\ bignum>fixnum make-foldable
+
+\ float>fixnum { float } { fixnum } define-primitive
+\ bignum>fixnum make-foldable
+
+\ fixnum>bignum { fixnum } { bignum } define-primitive
+\ fixnum>bignum make-foldable
+
+\ float>bignum { float } { bignum } define-primitive
+\ float>bignum make-foldable
+
+\ fixnum>float { fixnum } { float } define-primitive
+\ fixnum>float make-foldable
+
+\ bignum>float { bignum } { float } define-primitive
+\ bignum>float make-foldable
+
+\ <ratio> { integer integer } { ratio } define-primitive
+\ <ratio> make-foldable
+
+\ string>float { string } { float } define-primitive
+\ string>float make-foldable
+
+\ float>string { float } { string } define-primitive
+\ float>string make-foldable
+
+\ float>bits { real } { integer } define-primitive
+\ float>bits make-foldable
+
+\ double>bits { real } { integer } define-primitive
+\ double>bits make-foldable
+
+\ bits>float { integer } { float } define-primitive
+\ bits>float make-foldable
+
+\ bits>double { integer } { float } define-primitive
+\ bits>double make-foldable
+
+\ <complex> { real real } { complex } define-primitive
+\ <complex> make-foldable
+
+\ fixnum+ { fixnum fixnum } { integer } define-primitive
+\ fixnum+ make-foldable
+
+\ fixnum+fast { fixnum fixnum } { fixnum } define-primitive
+\ fixnum+fast make-foldable
+
+\ fixnum- { fixnum fixnum } { integer } define-primitive
+\ fixnum- make-foldable
+
+\ fixnum-fast { fixnum fixnum } { fixnum } define-primitive
+\ fixnum-fast make-foldable
+
+\ fixnum* { fixnum fixnum } { integer } define-primitive
+\ fixnum* make-foldable
+
+\ fixnum*fast { fixnum fixnum } { fixnum } define-primitive
+\ fixnum*fast make-foldable
+
+\ fixnum/i { fixnum fixnum } { integer } define-primitive
+\ fixnum/i make-foldable
+
+\ fixnum-mod { fixnum fixnum } { fixnum } define-primitive
+\ fixnum-mod make-foldable
+
+\ fixnum/mod { fixnum fixnum } { integer fixnum } define-primitive
+\ fixnum/mod make-foldable
+
+\ fixnum-bitand { fixnum fixnum } { fixnum } define-primitive
+\ fixnum-bitand make-foldable
+
+\ fixnum-bitor { fixnum fixnum } { fixnum } define-primitive
+\ fixnum-bitor make-foldable
+
+\ fixnum-bitxor { fixnum fixnum } { fixnum } define-primitive
+\ fixnum-bitxor make-foldable
+
+\ fixnum-bitnot { fixnum } { fixnum } define-primitive
+\ fixnum-bitnot make-foldable
+
+\ fixnum-shift { fixnum fixnum } { integer } define-primitive
+\ fixnum-shift make-foldable
+
+\ fixnum-shift-fast { fixnum fixnum } { fixnum } define-primitive
+\ fixnum-shift-fast make-foldable
+
+\ bignum= { bignum bignum } { object } define-primitive
+\ bignum= make-foldable
+
+\ bignum+ { bignum bignum } { bignum } define-primitive
+\ bignum+ make-foldable
+
+\ bignum- { bignum bignum } { bignum } define-primitive
+\ bignum- make-foldable
+
+\ bignum* { bignum bignum } { bignum } define-primitive
+\ bignum* make-foldable
+
+\ bignum/i { bignum bignum } { bignum } define-primitive
+\ bignum/i make-foldable
+
+\ bignum-mod { bignum bignum } { bignum } define-primitive
+\ bignum-mod make-foldable
+
+\ bignum/mod { bignum bignum } { bignum bignum } define-primitive
+\ bignum/mod make-foldable
+
+\ bignum-bitand { bignum bignum } { bignum } define-primitive
+\ bignum-bitand make-foldable
+
+\ bignum-bitor { bignum bignum } { bignum } define-primitive
+\ bignum-bitor make-foldable
+
+\ bignum-bitxor { bignum bignum } { bignum } define-primitive
+\ bignum-bitxor make-foldable
+
+\ bignum-bitnot { bignum } { bignum } define-primitive
+\ bignum-bitnot make-foldable
+
+\ bignum-shift { bignum fixnum } { bignum } define-primitive
+\ bignum-shift make-foldable
+
+\ bignum< { bignum bignum } { object } define-primitive
+\ bignum< make-foldable
+
+\ bignum<= { bignum bignum } { object } define-primitive
+\ bignum<= make-foldable
+
+\ bignum> { bignum bignum } { object } define-primitive
+\ bignum> make-foldable
+
+\ bignum>= { bignum bignum } { object } define-primitive
+\ bignum>= make-foldable
+
+\ bignum-bit? { bignum integer } { object } define-primitive
+\ bignum-bit? make-foldable
+
+\ bignum-log2 { bignum } { bignum } define-primitive
+\ bignum-log2 make-foldable
+
+\ byte-array>bignum { byte-array } { bignum } define-primitive
+\ byte-array>bignum make-foldable
+
+\ float= { float float } { object } define-primitive
+\ float= make-foldable
+
+\ float+ { float float } { float } define-primitive
+\ float+ make-foldable
+
+\ float- { float float } { float } define-primitive
+\ float- make-foldable
+
+\ float* { float float } { float } define-primitive
+\ float* make-foldable
+
+\ float/f { float float } { float } define-primitive
+\ float/f make-foldable
+
+\ float< { float float } { object } define-primitive
+\ float< make-foldable
+
+\ float-mod { float float } { float } define-primitive
+\ float-mod make-foldable
+
+\ float<= { float float } { object } define-primitive
+\ float<= make-foldable
+
+\ float> { float float } { object } define-primitive
+\ float> make-foldable
+
+\ float>= { float float } { object } define-primitive
+\ float>= make-foldable
+
+\ <word> { object object } { word } define-primitive
+\ <word> make-flushable
+
+\ word-xt { word } { integer integer } define-primitive
+\ word-xt make-flushable
+
+\ getenv { fixnum } { object } define-primitive
+\ getenv make-flushable
+
+\ setenv { object fixnum } { } define-primitive
+
+\ (exists?) { string } { object } define-primitive
+
+\ (directory) { string } { array } define-primitive
+
+\ gc { } { } define-primitive
+
+\ gc-stats { } { array } define-primitive
+
+\ save-image { string } { } define-primitive
+
+\ save-image-and-exit { string } { } define-primitive
+
+\ data-room { } { integer integer array } define-primitive
+\ data-room make-flushable
+
+\ code-room { } { integer integer integer integer } define-primitive
+\ code-room  make-flushable
+
+\ os-env { string } { object } define-primitive
+
+\ millis { } { integer } define-primitive
+\ millis make-flushable
+
+\ tag { object } { fixnum } define-primitive
+\ tag make-foldable
+
+\ dlopen { string } { dll } define-primitive
+
+\ dlsym { string object } { c-ptr } define-primitive
+
+\ dlclose { dll } { } define-primitive
+
+\ <byte-array> { integer } { byte-array } define-primitive
+\ <byte-array> make-flushable
+
+\ <displaced-alien> { integer c-ptr } { c-ptr } define-primitive
+\ <displaced-alien> make-flushable
+
+\ alien-signed-cell { c-ptr integer } { integer } define-primitive
+\ alien-signed-cell make-flushable
+
+\ set-alien-signed-cell { integer c-ptr integer } { } define-primitive
+
+\ alien-unsigned-cell { c-ptr integer } { integer } define-primitive
+\ alien-unsigned-cell make-flushable
+
+\ set-alien-unsigned-cell { integer c-ptr integer } { } define-primitive
+
+\ alien-signed-8 { c-ptr integer } { integer } define-primitive
+\ alien-signed-8 make-flushable
+
+\ set-alien-signed-8 { integer c-ptr integer } { } define-primitive
+
+\ alien-unsigned-8 { c-ptr integer } { integer } define-primitive
+\ alien-unsigned-8 make-flushable
+
+\ set-alien-unsigned-8 { integer c-ptr integer } { } define-primitive
+
+\ alien-signed-4 { c-ptr integer } { integer } define-primitive
+\ alien-signed-4 make-flushable
+
+\ set-alien-signed-4 { integer c-ptr integer } { } define-primitive
+
+\ alien-unsigned-4 { c-ptr integer } { integer } define-primitive
+\ alien-unsigned-4 make-flushable
+
+\ set-alien-unsigned-4 { integer c-ptr integer } { } define-primitive
+
+\ alien-signed-2 { c-ptr integer } { fixnum } define-primitive
+\ alien-signed-2 make-flushable
+
+\ set-alien-signed-2 { integer c-ptr integer } { } define-primitive
+
+\ alien-unsigned-2 { c-ptr integer } { fixnum } define-primitive
+\ alien-unsigned-2 make-flushable
+
+\ set-alien-unsigned-2 { integer c-ptr integer } { } define-primitive
+
+\ alien-signed-1 { c-ptr integer } { fixnum } define-primitive
+\ alien-signed-1 make-flushable
+
+\ set-alien-signed-1 { integer c-ptr integer } { } define-primitive
+
+\ alien-unsigned-1 { c-ptr integer } { fixnum } define-primitive
+\ alien-unsigned-1 make-flushable
+
+\ set-alien-unsigned-1 { integer c-ptr integer } { } define-primitive
+
+\ alien-float { c-ptr integer } { float } define-primitive
+\ alien-float make-flushable
+
+\ set-alien-float { float c-ptr integer } { } define-primitive
+
+\ alien-double { c-ptr integer } { float } define-primitive
+\ alien-double make-flushable
+
+\ set-alien-double { float c-ptr integer } { } define-primitive
+
+\ alien-cell { c-ptr integer } { simple-c-ptr } define-primitive
+\ alien-cell make-flushable
+
+\ set-alien-cell { c-ptr c-ptr integer } { } define-primitive
+
+\ alien-address { alien } { integer } define-primitive
+\ alien-address make-flushable
+
+\ slot { object fixnum } { object } define-primitive
+\ slot make-flushable
+
+\ set-slot { object object fixnum } { } define-primitive
+
+\ string-nth { fixnum string } { fixnum } define-primitive
+\ string-nth make-flushable
+
+\ set-string-nth { fixnum fixnum string } { } define-primitive
+
+\ resize-array { integer array } { array } define-primitive
+\ resize-array make-flushable
+
+\ resize-byte-array { integer byte-array } { byte-array } define-primitive
+\ resize-byte-array make-flushable
+
+\ resize-string { integer string } { string } define-primitive
+\ resize-string make-flushable
+
+\ <array> { integer object } { array } define-primitive
+\ <array> make-flushable
+
+\ begin-scan { } { } define-primitive
+
+\ next-object { } { object } define-primitive
+
+\ end-scan { } { } define-primitive
+
+\ size { object } { fixnum } define-primitive
+\ size make-flushable
+
+\ die { } { } define-primitive
+
+\ fopen { string string } { alien } define-primitive
+
+\ fgetc { alien } { object } define-primitive
+
+\ fwrite { string alien } { } define-primitive
+
+\ fputc { object alien } { } define-primitive
+
+\ fread { integer string } { object } define-primitive
+
+\ fflush { alien } { } define-primitive
+
+\ fclose { alien } { } define-primitive
+
+\ <wrapper> { object } { wrapper } define-primitive
+\ <wrapper> make-foldable
+
+\ (clone) { object } { object } define-primitive
+\ (clone) make-flushable
+
+\ <string> { integer integer } { string } define-primitive
+\ <string> make-flushable
+
+\ array>quotation { array } { quotation } define-primitive
+\ array>quotation make-flushable
+
+\ quotation-xt { quotation } { integer } define-primitive
+\ quotation-xt make-flushable
+
+\ <tuple> { tuple-layout } { tuple } define-primitive
+\ <tuple> make-flushable
+
+\ <tuple-layout> { word fixnum array fixnum } { tuple-layout } define-primitive
+\ <tuple-layout> make-foldable
+
+\ datastack { } { array } define-primitive
+\ datastack make-flushable
+
+\ retainstack { } { array } define-primitive
+\ retainstack make-flushable
+
+\ callstack { } { callstack } define-primitive
+\ callstack make-flushable
+
+\ callstack>array { callstack } { array } define-primitive
+\ callstack>array make-flushable
+
+\ (sleep) { integer } { } define-primitive
+
+\ become { array array } { } define-primitive
+
+\ innermost-frame-quot { callstack } { quotation } define-primitive
+
+\ innermost-frame-scan { callstack } { fixnum } define-primitive
+
+\ set-innermost-frame-quot { quotation callstack } { } define-primitive
+
+\ (os-envs) { } { array } define-primitive
+
+\ set-os-env { string string } { } define-primitive
+
+\ unset-os-env { string } { } define-primitive
+
+\ (set-os-envs) { array } { } define-primitive
+
+\ dll-valid? { object } { object } define-primitive
+
+\ modify-code-heap { array object } { } define-primitive
+
+\ unimplemented { } { } define-primitive
diff --git a/core/inference/known-words/summary.txt b/basis/stack-checker/known-words/summary.txt
similarity index 100%
rename from core/inference/known-words/summary.txt
rename to basis/stack-checker/known-words/summary.txt
diff --git a/core/inference/inference-docs.factor b/basis/stack-checker/stack-checker-docs.factor
similarity index 74%
rename from core/inference/inference-docs.factor
rename to basis/stack-checker/stack-checker-docs.factor
index d79c82ed65..a9df463703 100755
--- a/core/inference/inference-docs.factor
+++ b/basis/stack-checker/stack-checker-docs.factor
@@ -1,7 +1,11 @@
 USING: help.syntax help.markup kernel sequences words io
-effects inference.dataflow inference.backend classes
-math combinators inference.transforms inference.state ;
-IN: inference
+effects classes math combinators
+stack-checker.backend
+stack-checker.branches
+stack-checker.errors
+stack-checker.transforms
+stack-checker.state ;
+IN: stack-checker
 
 ARTICLE: "inference-simple" "Straight-line stack effects"
 "The simplest case to look at is that of a quotation which does not have any branches or recursion, and just pushes literals and calls words, each of which has a known stack effect."
@@ -41,15 +45,21 @@ $nl
 "The call to " { $link if } " takes one value from the stack, a generalized boolean. The first branch " { $snippet "[ + ]" } " has stack effect " { $snippet "( x x -- x )" } " and the second has stack effect " { $snippet "( x -- )" } ". Since both branches decrease the height of the stack by one, we say that the stack effect of the two branches is " { $snippet "( x x -- x )" } ", and together with the boolean popped off the stack by " { $link if } ", this gives a total stack effect of " { $snippet "( x x x -- x )" } "." ;
 
 ARTICLE: "inference-recursive" "Stack effects of recursive words"
-"Recursive words must declare a stack effect. When a recursive call is encountered, the declared stack effect is substituted in. When inference is complete, the inferred stack effect is compared with the declared stack effect."
+"When a recursive call is encountered, the declared stack effect is substituted in. When inference is complete, the inferred stack effect is compared with the declared stack effect."
 $nl
 "Attempting to infer the stack effect of a recursive word which outputs a variable number of objects on the stack will fail. For example, the following will throw an " { $link unbalanced-branches-error } ":"
 { $code ": foo ( seq -- ) dup empty? [ drop ] [ dup pop foo ] if" "[ foo ] infer." }
 "If you declare an incorrect stack effect, inference will fail also. Badly defined recursive words cannot confuse the inferencer." ;
 
-ARTICLE: "inference-limitations" "Inference limitations"
-"Mutually recursive words are supported, but mutually recursive " { $emphasis "inline" } " words are not."
+ARTICLE: "inference-recursive-combinators" "Recursive combinator inference"
+"Most combinators are not explicitly recursive; instead, they are implemented in terms of existing combinators, for example " { $link while } ", " { $link map } ", and the " { $link "compositional-combinators" } "."
 $nl
+"Combinators which are recursive require additional care."
+$nl
+"If a recursive word takes quotation parameters from the stack and calls them, it must be declared " { $link POSTPONE: inline } " (as documented in " { $link "inference-combinators" } ") as well as " { $link POSTPONE: recursive } "."
+$nl
+"Furthermore, the input parameters which are quotations must be annotated in the stack effect. For example,"
+{ $see loop }
 "An inline recursive word cannot pass a quotation through the recursive call. For example, the following will not infer:"
 { $code ": foo ( a b c -- d e f ) [ f foo drop ] when 2dup call ; inline" "[ 1 [ 1+ ] foo ] infer." }
 "However a small change can be made:"
@@ -65,34 +75,10 @@ ARTICLE: "compiler-transforms" "Compiler transforms"
 { $subsection define-transform }
 "An example is the " { $link cond } " word. If the association list of quotations it is given is literal, the entire form is expanded into a series of nested calls to " { $link if } "."
 $nl
-"Further customization can be achieved by hooking into the lower-level machinery used by " { $link define-transform } ", the " { $snippet "\"infer\"" } " word property."
-$nl
-"This property can hold a quotation to be called when the stack effect of a call to this word is being inferred. This quotation can access all internal state of the stack effect inferencer, such as the known literals on the data stack."
-{ $subsection pop-literal }
-{ $subsection infer-quot }
-{ $subsection infer-quot-value }
 "The " { $vocab-link "macros" } " vocabulary defines some nice syntax sugar which makes compiler transforms easier to work with." ;
 
-ARTICLE: "dataflow-graphs" "Inspecting the dataflow graph"
-"The dataflow graph used by " { $link "compiler" } " can be obtained:"
-{ $subsection dataflow }
-"The " { $vocab-link "optimizer.debugger" } " tool prints the dataflow graph in human readable form."
-$nl ;
-
-ARTICLE: "inference-errors" "Inference errors"
-"Main wrapper for all inference errors:"
-{ $subsection inference-error }
-"Specific inference errors:"
-{ $subsection no-effect }
-{ $subsection literal-expected }
-{ $subsection too-many->r }
-{ $subsection too-many-r> }
-{ $subsection unbalanced-branches-error }
-{ $subsection effect-error }
-{ $subsection recursive-declare-error } ;
-
 ARTICLE: "inference" "Stack effect inference"
-"The stack effect inference tool is used to check correctness of code before it is run. It is also used by the compiler to build a dataflow graph on which optimizations can be performed. Only words for which a stack effect can be inferred will compile."
+"The stack effect inference tool is used to check correctness of code before it is run. It is also used by the optimizing compiler to build the high-level SSA representation on which optimizations can be performed. Only words for which a stack effect can be inferred will compile with the optimizing compiler; all other words will be compiled with the non-optimizing compiler (see " { $link "compiler" } ")."
 $nl
 "The main entry point is a single word which takes a quotation and prints its stack effect and variable usage:"
 { $subsection infer. }
@@ -102,13 +88,13 @@ $nl
 $nl
 "The following articles describe the implementation of the stack effect inference algorithm:"
 { $subsection "inference-simple" }
-{ $subsection "inference-combinators" }
-{ $subsection "inference-branches" }
 { $subsection "inference-recursive" } 
-{ $subsection "inference-limitations" }
+{ $subsection "inference-combinators" }
+{ $subsection "inference-recursive-combinators" }
+{ $subsection "inference-branches" }
 { $subsection "inference-errors" }
-{ $subsection "dataflow-graphs" }
-{ $subsection "compiler-transforms" } ;
+{ $subsection "compiler-transforms" }
+{ $see-also "effects" } ;
 
 ABOUT: "inference"
 
@@ -116,18 +102,12 @@ HELP: inference-error
 { $values { "class" class } }
 { $description "Creates an instance of " { $snippet "class" } ", wraps it in an " { $link inference-error } " and throws the result." }
 { $error-description
-    "Thrown by " { $link infer } " and " { $link dataflow } " when the stack effect of a quotation cannot be inferred."
+    "Thrown by " { $link infer } " when the stack effect of a quotation cannot be inferred."
     $nl
     "The " { $snippet "error" } " slot contains one of several possible " { $link "inference-errors" } "."
 } ;
 
 
-HELP: dataflow-graph
-{ $var-description "In the dynamic extent of " { $link infer } " and " { $link dataflow } ", holds the first node of the dataflow graph being constructed." } ;
-
-HELP: current-node
-{ $var-description "In the dynamic extent of " { $link infer } " and " { $link dataflow } ", holds the most recently added node of the dataflow graph being constructed." } ;
-
 HELP: infer
 { $values { "quot" "a quotation" } { "effect" "an instance of " { $link effect } } }
 { $description "Attempts to infer the quotation's stack effect. For interactive testing, the " { $link infer. } " word should be called instead since it presents the output in a nicely formatted manner." }
@@ -140,17 +120,6 @@ HELP: infer.
 
 { infer infer. } related-words
 
-HELP: dataflow
-{ $values { "quot" "a quotation" } { "dataflow" "a dataflow node" } }
-{ $description "Attempts to construct a dataflow graph showing stack flow in the quotation." }
-{ $notes "This is the first stage of the compiler." }
-{ $errors "Throws an " { $link inference-error } " if stack effect inference fails." } ;
-
-HELP: dataflow-with
-{ $values { "quot" "a quotation" } { "stack" "a vector" } { "dataflow" "a dataflow node" } }
-{ $description "Attempts to construct a dataflow graph showing stack flow in the quotation, starting with an initial data stack of values." }
-{ $errors "Throws an " { $link inference-error } " if stack effect inference fails." } ;
-
 HELP: forget-errors
 { $description "Removes markers indicating which words do not have stack effects."
 $nl
diff --git a/core/inference/inference-tests.factor b/basis/stack-checker/stack-checker-tests.factor
similarity index 75%
rename from core/inference/inference-tests.factor
rename to basis/stack-checker/stack-checker-tests.factor
index 0d3eb03cf4..9bf8ed62f0 100755
--- a/core/inference/inference-tests.factor
+++ b/basis/stack-checker/stack-checker-tests.factor
@@ -1,15 +1,15 @@
-USING: arrays generic inference inference.backend
-inference.dataflow kernel classes kernel.private math
-math.parser math.private namespaces namespaces.private parser
-sequences strings vectors words quotations effects tools.test
-continuations generic.standard sorting assocs definitions
-prettyprint io inspector classes.tuple classes.union
-classes.predicate debugger threads.private io.streams.string
-io.timeouts io.thread sequences.private destructors ;
-IN: inference.tests
+USING: accessors arrays generic stack-checker
+stack-checker.backend stack-checker.errors kernel classes
+kernel.private math math.parser math.private namespaces
+namespaces.private parser sequences strings vectors words
+quotations effects tools.test continuations generic.standard
+sorting assocs definitions prettyprint io inspector
+classes.tuple classes.union classes.predicate debugger
+threads.private io.streams.string io.timeouts io.thread
+sequences.private destructors combinators eval ;
+IN: stack-checker.tests
 
-[ ] [ [ 1 ] dataflow [ ] transform-nodes drop ] unit-test
-[ ] [ [ 1 2 3 ] dataflow [ ] transform-nodes drop ] unit-test
+\ infer. must-infer
 
 { 0 2 } [ 2 "Hello" ] must-infer-as
 { 1 2 } [ dup ] must-infer-as
@@ -48,20 +48,12 @@ IN: inference.tests
 ] must-fail
 
 ! Test inference of termination of control flow
-: termination-test-1
-    "foo" throw ;
+: termination-test-1 ( -- * ) "foo" throw ;
 
-: termination-test-2 [ termination-test-1 ] [ 3 ] if ;
+: termination-test-2 ( ? -- x ) [ termination-test-1 ] [ 3 ] if ;
 
 { 1 1 } [ termination-test-2 ] must-infer-as
 
-: infinite-loop infinite-loop ;
-
-[ [ infinite-loop ] infer ] must-fail
-
-: no-base-case-1 dup [ no-base-case-1 ] [ no-base-case-1 ] if ;
-[ [ no-base-case-1 ] infer ] must-fail
-
 : simple-recursion-1 ( obj -- obj )
     dup [ simple-recursion-1 ] [ ] if ;
 
@@ -131,7 +123,7 @@ SYMBOL: sym-test
 
 { 0 1 } [ sym-test ] must-infer-as
 
-: terminator-branch
+: terminator-branch ( a -- b )
     dup [
         length
     ] [
@@ -156,7 +148,7 @@ M: fixnum potential-hang dup [ potential-hang ] when ;
 
 TUPLE: funny-cons car cdr ;
 GENERIC: iterate ( obj -- )
-M: funny-cons iterate funny-cons-cdr iterate ;
+M: funny-cons iterate cdr>> iterate ;
 M: f iterate drop ;
 M: real iterate drop ;
 
@@ -188,21 +180,20 @@ DEFER: blah4
 { 3 0 } [ blah4 ] must-infer-as
 
 ! Regression
-: bad-combinator ( obj quot -- )
+: bad-combinator ( obj quot: ( -- ) -- )
     over [
         2drop
     ] [
         [ swap slip ] keep swap bad-combinator
-    ] if ; inline
+    ] if ; inline recursive
 
 [ [ [ 1 ] [ ] bad-combinator ] infer ] must-fail
 
 ! Regression
-: bad-input#
+{ 2 2 } [
     dup string? [ 2array throw ] unless
-    over string? [ 2array throw ] unless ;
-
-{ 2 2 } [ bad-input# ] must-infer-as
+    over string? [ 2array throw ] unless
+] must-infer-as
 
 ! Regression
 
@@ -220,11 +211,11 @@ DEFER: do-crap*
 
 ! Regression
 : too-deep ( a b -- c )
-    dup [ drop ] [ 2dup too-deep too-deep * ] if ; inline
+    dup [ drop ] [ 2dup too-deep too-deep * ] if ; inline recursive
 { 2 1 } [ too-deep ] must-infer-as
 
 ! Error reporting is wrong
-MATH: xyz
+MATH: xyz ( a b -- c )
 M: fixnum xyz 2array ;
 M: float xyz
     [ 3 ] bi@ swapd >r 2array swap r> 2array swap ;
@@ -275,12 +266,12 @@ DEFER: Y
 
 ! This one comes from UI code
 DEFER: #1
-: #2 ( a b -- ) dup [ call ] [ 2drop ] if ; inline
+: #2 ( a b: ( -- ) -- ) dup [ call ] [ 2drop ] if ; inline
 : #3 ( a -- ) [ #1 ] #2 ;
 : #4 ( a -- ) dup [ drop ] [ dup #4 dup #3 call ] if ;
 : #1 ( a -- ) dup [ dup #4 dup #3 ] [ ] if drop ;
 
-[ \ #4 word-def infer ] must-fail
+[ \ #4 def>> infer ] must-fail
 [ [ #1 ] infer ] must-fail
 
 ! Similar
@@ -332,7 +323,7 @@ DEFER: bar
 [ [ r> ] infer ] [ inference-error? ] must-fail-with
 
 ! Regression
-[ [ get-slots ] infer ] [ inference-error? ] must-fail-with
+[ [ cleave ] infer ] [ inference-error? ] must-fail-with
 
 ! Test some curry stuff
 { 1 1 } [ 3 [ ] curry 4 [ ] curry if ] must-infer-as
@@ -405,6 +396,8 @@ DEFER: bar
 \ define-tuple-class must-infer
 \ define-union-class must-infer
 \ define-predicate-class must-infer
+\ instance? must-infer
+\ next-method-quot must-infer
 
 ! Test words with continuations
 { 0 0 } [ [ drop ] callcc0 ] must-infer-as
@@ -448,7 +441,7 @@ DEFER: bar
 ! Incorrect stack declarations on inline recursive words should
 ! be caught
 : fooxxx ( a b -- c ) over [ foo ] when ; inline
-: barxxx fooxxx ;
+: barxxx ( a b -- c ) fooxxx ;
 
 [ [ barxxx ] infer ] must-fail
 
@@ -472,32 +465,8 @@ M: string my-hook "a string" ;
 
 DEFER: deferred-word
 
-: calls-deferred-word [ deferred-word ] [ 3 ] if ;
+{ 1 1 } [ [ deferred-word ] [ 3 ] if ] must-infer-as
 
-{ 1 1 } [ calls-deferred-word ] must-infer-as
-
-USE: inference.dataflow
-
-{ 1 0 } [ [ iterate-next ] iterate-nodes ] must-infer-as
-
-{ 1 0 }
-[
-    [ [ iterate-next ] iterate-nodes ] with-node-iterator
-] must-infer-as
-
-: nilpotent ( quot -- )
-    t [ [ call ] keep nilpotent ] [ drop ] if ; inline
-
-: semisimple ( quot -- )
-    [ call ] keep [ [ semisimple ] keep ] nilpotent drop ; inline
-
-{ 0 1 }
-[ [ ] [ call ] keep [ [ call ] keep ] nilpotent ]
-must-infer-as
-
-{ 0 0 } [ [ ] semisimple ] must-infer-as
-
-{ 1 0 } [ [ drop ] each-node ] must-infer-as
 
 DEFER: an-inline-word
 
@@ -546,13 +515,68 @@ ERROR: custom-error ;
 
 [ [ missing->r-check ] infer ] must-fail
 
-{ 1 0 } [ [ ] map-children ] must-infer-as
-
 ! Corner case
-! [ [ [ f dup ] [ dup ] [ ] unfold ] infer ] must-fail
+[ [ [ f dup ] [ dup ] [ ] produce ] infer ] must-fail
 
-! [ [ [ f dup ] [ ] [ ] while ] infer ] must-fail
+[ [ [ f dup ] [ ] [ ] while ] infer ] must-fail
 
-! : erg's-inference-bug ( -- ) f dup [ erg's-inference-bug ] when ; inline
+: erg's-inference-bug ( -- ) f dup [ erg's-inference-bug ] when ; inline
 
-! [ [ erg's-inference-bug ] infer ] must-fail
+[ [ erg's-inference-bug ] infer ] must-fail
+
+: inference-invalidation-a ( -- ) ;
+: inference-invalidation-b ( quot -- ) [ inference-invalidation-a ] dip call ; inline
+: inference-invalidation-c ( a b -- c ) [ + ] inference-invalidation-b ; inline
+
+[ 7 ] [ 4 3 inference-invalidation-c ] unit-test
+
+{ 2 1 } [ [ + ] inference-invalidation-b ] must-infer-as
+
+[ ] [ "IN: stack-checker.tests : inference-invalidation-a ( -- a b ) 1 2 ;" eval ] unit-test
+
+[ 3 ] [ inference-invalidation-c ] unit-test
+
+{ 0 1 } [ inference-invalidation-c ] must-infer-as
+
+GENERIC: inference-invalidation-d ( obj -- )
+
+M: object inference-invalidation-d inference-invalidation-c 2drop ;
+
+\ inference-invalidation-d must-infer
+
+[ ] [ "IN: stack-checker.tests : inference-invalidation-a ( -- ) ;" eval ] unit-test
+
+[ [ inference-invalidation-d ] infer ] must-fail
+
+: bad-recursion-3 ( -- ) dup [ >r bad-recursion-3 r> ] when ; inline
+[ [ bad-recursion-3 ] infer ] must-fail
+
+: bad-recursion-4 ( -- ) 4 [ dup call roll ] times ; inline
+[ [ [ ] [ 1 2 3 ] over dup bad-recursion-4 ] infer ] must-fail
+
+: bad-recursion-5 ( obj quot: ( -- ) -- ) dup call swap bad-recursion-5 ; inline recursive
+[ [ f [ ] bad-recursion-5 ] infer ] must-fail
+
+: bad-recursion-6 ( quot: ( -- ) -- )
+    dup bad-recursion-6 call ; inline recursive
+[ [ [ drop f ] bad-recursion-6 ] infer ] must-fail
+
+{ 3 0 } [ [ 2drop "A" throw ] [ ] if 2drop ] must-infer-as
+{ 2 0 } [ drop f f [ 2drop "A" throw ] [ ] if 2drop ] must-infer-as
+
+: unbalanced-retain-usage ( a b -- )
+    dup 10 < [ 2drop 5 1 + unbalanced-retain-usage ] [ 2drop ] if ;
+    inline recursive
+
+[ [ unbalanced-retain-usage ] infer ] [ inference-error? ] must-fail-with
+
+DEFER: eee'
+: ddd' ( ? -- ) [ f eee' ] when ; inline recursive
+: eee' ( ? -- ) >r swap [ ] r> ddd' call ; inline recursive
+
+[ [ eee' ] infer ] [ inference-error? ] must-fail-with
+
+: bogus-error ( x -- )
+    dup "A" throw [ bogus-error ] [ drop ] if ; inline recursive
+
+[ bogus-error ] must-infer
diff --git a/basis/stack-checker/stack-checker.factor b/basis/stack-checker/stack-checker.factor
new file mode 100755
index 0000000000..bc3b65518c
--- /dev/null
+++ b/basis/stack-checker/stack-checker.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2004, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel io effects namespaces sequences quotations vocabs
+generic words stack-checker.backend stack-checker.state
+stack-checker.known-words stack-checker.transforms
+stack-checker.errors stack-checker.inlining
+stack-checker.visitor.dummy ;
+IN: stack-checker
+
+GENERIC: infer ( quot -- effect )
+
+M: callable infer ( quot -- effect )
+    [ recursive-state get infer-quot ] with-infer drop ;
+
+: infer. ( quot -- )
+    #! Safe to call from inference transforms.
+    infer effect>string print ;
+
+: forget-errors ( -- )
+    all-words [
+        dup subwords [ f "cannot-infer" set-word-prop ] each
+        f "cannot-infer" set-word-prop
+    ] each ;
+
+: forget-effects ( -- )
+    forget-errors
+    all-words [ f "inferred-effect" set-word-prop ] each ;
diff --git a/extra/math/libm/authors.txt b/basis/stack-checker/state/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/math/libm/authors.txt
rename to basis/stack-checker/state/authors.txt
diff --git a/basis/stack-checker/state/state-tests.factor b/basis/stack-checker/state/state-tests.factor
new file mode 100644
index 0000000000..a4dea993c0
--- /dev/null
+++ b/basis/stack-checker/state/state-tests.factor
@@ -0,0 +1,30 @@
+IN: stack-checker.state.tests
+USING: tools.test stack-checker.state words kernel namespaces
+definitions ;
+
+: computing-dependencies ( quot -- dependencies )
+    H{ } clone [ dependencies rot with-variable ] keep ;
+    inline
+
+SYMBOL: a
+SYMBOL: b
+
+[ ] [ a called-dependency depends-on ] unit-test
+
+[ H{ { a called-dependency } } ] [
+    [ a called-dependency depends-on ] computing-dependencies
+] unit-test
+
+[ H{ { a called-dependency } { b inlined-dependency } } ] [
+    [
+        a called-dependency depends-on b inlined-dependency depends-on
+    ] computing-dependencies
+] unit-test
+
+[ H{ { a inlined-dependency } { b inlined-dependency } } ] [
+    [
+        a inlined-dependency depends-on
+        a called-dependency depends-on
+        b inlined-dependency depends-on
+    ] computing-dependencies
+] unit-test
diff --git a/basis/stack-checker/state/state.factor b/basis/stack-checker/state/state.factor
new file mode 100755
index 0000000000..0d0de7f19b
--- /dev/null
+++ b/basis/stack-checker/state/state.factor
@@ -0,0 +1,106 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs namespaces sequences kernel definitions math
+effects accessors words fry classes.algebra stack-checker.errors
+compiler.units ;
+IN: stack-checker.state
+
+: <value> ( -- value ) \ <value> counter ;
+
+SYMBOL: known-values
+
+: known ( value -- known ) known-values get at ;
+
+: set-known ( known value -- )
+    over [ known-values get set-at ] [ 2drop ] if ;
+
+: make-known ( known -- value )
+    <value> [ set-known ] keep ;
+
+: copy-value ( value -- value' )
+    known make-known ;
+
+: copy-values ( values -- values' )
+    [ copy-value ] map ;
+
+! Literal value
+TUPLE: literal < identity-tuple value recursion ;
+
+: <literal> ( obj -- value )
+    recursive-state get \ literal boa ;
+
+: literal ( value -- literal )
+    known dup literal?
+    [  \ literal-expected inference-warning ] unless ;
+
+! Result of curry
+TUPLE: curried obj quot ;
+
+C: <curried> curried
+
+! Result of compose
+TUPLE: composed quot1 quot2 ;
+
+C: <composed> composed
+
+! Did the current control-flow path throw an error?
+SYMBOL: terminated?
+
+! Number of inputs current word expects from the stack
+SYMBOL: d-in
+
+! Compile-time data stack
+SYMBOL: meta-d
+
+! Compile-time retain stack
+SYMBOL: meta-r
+
+: current-stack-height ( -- n ) meta-d get length d-in get - ;
+
+: current-effect ( -- effect )
+    d-in get
+    meta-d get length <effect>
+    terminated? get >>terminated? ;
+
+: init-inference ( -- )
+    terminated? off
+    V{ } clone meta-d set
+    V{ } clone meta-r set
+    0 d-in set ;
+
+: init-known-values ( -- )
+    H{ } clone known-values set ;
+
+: recursive-label ( word -- label/f )
+    recursive-state get at ;
+
+: local-recursive-state ( -- assoc )
+    recursive-state get dup keys
+    [ dup word? [ inline? ] when not ] find drop
+    [ head-slice ] when* ;
+
+: inline-recursive-label ( word -- label/f )
+    local-recursive-state at ;
+
+: recursive-quotation? ( quot -- ? )
+    local-recursive-state [ first eq? ] with contains? ;
+
+! Words that the current quotation depends on
+SYMBOL: dependencies
+
+: depends-on ( word how -- )
+    over primitive? [ 2drop ] [
+        dependencies get dup [
+            swap '[ , strongest-dependency ] change-at
+        ] [ 3drop ] if
+    ] if ;
+
+! Generic words that the current quotation depends on
+SYMBOL: generic-dependencies
+
+: depends-on-generic ( generic class -- )
+    generic-dependencies get dup
+    [ swap '[ null or , class-or ] change-at ] [ 3drop ] if ;
+
+! Words we've inferred the stack effect of, for rollback
+SYMBOL: recorded
diff --git a/core/inference/state/summary.txt b/basis/stack-checker/state/summary.txt
similarity index 100%
rename from core/inference/state/summary.txt
rename to basis/stack-checker/state/summary.txt
diff --git a/core/inference/summary.txt b/basis/stack-checker/summary.txt
similarity index 100%
rename from core/inference/summary.txt
rename to basis/stack-checker/summary.txt
diff --git a/core/inference/tags.txt b/basis/stack-checker/tags.txt
similarity index 100%
rename from core/inference/tags.txt
rename to basis/stack-checker/tags.txt
diff --git a/extra/math/ratios/authors.txt b/basis/stack-checker/transforms/authors.txt
similarity index 100%
rename from extra/math/ratios/authors.txt
rename to basis/stack-checker/transforms/authors.txt
diff --git a/core/inference/transforms/summary.txt b/basis/stack-checker/transforms/summary.txt
similarity index 100%
rename from core/inference/transforms/summary.txt
rename to basis/stack-checker/transforms/summary.txt
diff --git a/core/inference/transforms/transforms-docs.factor b/basis/stack-checker/transforms/transforms-docs.factor
similarity index 78%
rename from core/inference/transforms/transforms-docs.factor
rename to basis/stack-checker/transforms/transforms-docs.factor
index a6f0c8e0bf..a178669595 100755
--- a/core/inference/transforms/transforms-docs.factor
+++ b/basis/stack-checker/transforms/transforms-docs.factor
@@ -1,4 +1,4 @@
-IN: inference.transforms
+IN: stack-checker.transforms
 USING: help.markup help.syntax combinators words kernel ;
 
 HELP: define-transform
@@ -12,8 +12,3 @@ HELP: define-transform
 $nl
 "The " { $link cond } " word compiles to efficient code because it is transformed using " { $link cond>quot } ":"
 { $code "\\ cond [ cond>quot ] 1 define-transform" } } ;
-
-HELP: duplicated-slots-error
-{ $values { "names" "a sequence of setter words" } }
-{ $description "Throws a " { $link duplicated-slots-error } "." }
-{ $error-description "Thrown by stack effect inference if a " { $link set-slots } " form is given an array of slot setters that includes duplicates. Since writing to the same slot multiple times has no useful effect, this is a programmer error, so it is caught at compile time." } ;
diff --git a/basis/stack-checker/transforms/transforms-tests.factor b/basis/stack-checker/transforms/transforms-tests.factor
new file mode 100755
index 0000000000..8ae30dcd97
--- /dev/null
+++ b/basis/stack-checker/transforms/transforms-tests.factor
@@ -0,0 +1,44 @@
+IN: stack-checker.transforms.tests
+USING: sequences stack-checker.transforms tools.test math kernel
+quotations stack-checker accessors combinators words arrays
+classes classes.tuple ;
+
+: compose-n-quot ( word -- quot' ) <repetition> >quotation ;
+: compose-n ( quot -- ) compose-n-quot call ;
+\ compose-n [ compose-n-quot ] 2 define-transform
+: compose-n-test ( a b c -- x ) 2 \ + compose-n ;
+
+[ 6 ] [ 1 2 3 compose-n-test ] unit-test
+
+TUPLE: color r g b ;
+
+C: <color> color
+
+: cleave-test ( color -- r g b )
+    { [ r>> ] [ g>> ] [ b>> ] } cleave ;
+
+{ 1 3 } [ cleave-test ] must-infer-as
+
+[ 1 2 3 ] [ 1 2 3 <color> cleave-test ] unit-test
+
+[ 1 2 3 ] [ 1 2 3 <color> \ cleave-test def>> call ] unit-test
+
+: 2cleave-test ( a b -- c d e ) { [ 2array ] [ + ] [ - ] } 2cleave ;
+
+[ { 1 2 } 3 -1 ] [ 1 2 2cleave-test ] unit-test
+
+[ { 1 2 } 3 -1 ] [ 1 2 \ 2cleave-test def>> call ] unit-test
+
+: spread-test ( a b c -- d e f ) { [ sq ] [ neg ] [ recip ] } spread ;
+
+[ 16 -3 1/6 ] [ 4 3 6 spread-test ] unit-test
+
+[ 16 -3 1/6 ] [ 4 3 6 \ spread-test def>> call ] unit-test
+
+[ fixnum instance? ] must-infer
+
+: bad-new-test ( -- obj ) V{ } new ;
+
+[ bad-new-test ] must-infer
+
+[ bad-new-test ] must-fail
diff --git a/basis/stack-checker/transforms/transforms.factor b/basis/stack-checker/transforms/transforms.factor
new file mode 100755
index 0000000000..d60565e849
--- /dev/null
+++ b/basis/stack-checker/transforms/transforms.factor
@@ -0,0 +1,166 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: fry accessors arrays kernel words sequences generic math
+namespaces quotations assocs combinators classes.tuple
+classes.tuple.private effects summary hashtables classes generic
+sets definitions generic.standard slots.private continuations
+stack-checker.backend stack-checker.state stack-checker.visitor
+stack-checker.errors ;
+IN: stack-checker.transforms
+
+: give-up-transform ( word -- )
+    dup recursive-label
+    [ call-recursive-word ]
+    [ dup infer-word apply-word/effect ]
+    if ;
+
+: ((apply-transform)) ( word quot values stack -- )
+    rot with-datastack first2
+    dup [
+        [
+            [ drop ] [
+                [ length meta-d get '[ , pop* ] times ]
+                [ #drop, ]
+                bi
+            ] bi*
+        ] 2dip
+        swap infer-quot
+    ] [
+        3drop give-up-transform
+    ] if ; inline
+
+: (apply-transform) ( word quot n -- )
+    ensure-d dup [ known literal? ] all? [
+        dup empty? [
+            recursive-state get 1array
+        ] [
+            [ ]
+            [ [ literal value>> ] map ]
+            [ first literal recursion>> ] tri
+            prefix
+        ] if
+        ((apply-transform))
+    ] [ 2drop give-up-transform ] if ;
+
+: apply-transform ( word -- )
+    [ inlined-dependency depends-on ] [
+        [ ]
+        [ "transform-quot" word-prop ]
+        [ "transform-n" word-prop ]
+        tri
+        (apply-transform)
+    ] bi ;
+
+: apply-macro ( word -- )
+    [ inlined-dependency depends-on ] [
+        [ ]
+        [ "macro" word-prop ]
+        [ "declared-effect" word-prop in>> length ]
+        tri
+        (apply-transform)
+    ] bi ;
+
+: define-transform ( word quot n -- )
+    [ drop "transform-quot" set-word-prop ]
+    [ nip "transform-n" set-word-prop ]
+    3bi ;
+
+! Combinators
+\ cond [ cond>quot ] 1 define-transform
+
+\ case [
+    [
+        [ no-case ]
+    ] [
+        dup peek quotation? [
+            dup peek swap but-last
+        ] [
+            [ no-case ] swap
+        ] if case>quot
+    ] if-empty
+] 1 define-transform
+
+\ cleave [ cleave>quot ] 1 define-transform
+
+\ 2cleave [ 2cleave>quot ] 1 define-transform
+
+\ 3cleave [ 3cleave>quot ] 1 define-transform
+
+\ spread [ spread>quot ] 1 define-transform
+
+\ (call-next-method) [
+    [ [ inlined-dependency depends-on ] bi@ ] [ next-method-quot ] 2bi
+] 2 define-transform
+
+! Constructors
+\ boa [
+    dup tuple-class? [
+        dup inlined-dependency depends-on
+        [ "boa-check" word-prop ]
+        [ tuple-layout '[ , <tuple-boa> ] ]
+        bi append
+    ] [ drop f ] if
+] 1 define-transform
+
+\ new [
+    dup tuple-class? [
+        dup inlined-dependency depends-on
+        [
+            [ all-slots [ initial>> literalize , ] each ]
+            [ literalize , ] bi
+            \ boa ,
+        ] [ ] make
+    ] [ drop f ] if
+] 1 define-transform
+
+! Membership testing
+: bit-member-n 256 ; inline
+
+: bit-member? ( seq -- ? )
+    #! Can we use a fast byte array test here?
+    {
+        { [ dup length 8 < ] [ f ] }
+        { [ dup [ integer? not ] contains? ] [ f ] }
+        { [ dup [ 0 < ] contains? ] [ f ] }
+        { [ dup [ bit-member-n >= ] contains? ] [ f ] }
+        [ t ]
+    } cond nip ;
+
+: bit-member-seq ( seq -- flags )
+    bit-member-n swap [ member? 1 0 ? ] curry B{ } map-as ;
+
+: exact-float? ( f -- ? )
+    dup float? [ dup >integer >float = ] [ drop f ] if ; inline
+
+: bit-member-quot ( seq -- newquot )
+    [
+        bit-member-seq ,
+        [
+            {
+                { [ over fixnum? ] [ ?nth 1 eq? ] }
+                { [ over bignum? ] [ ?nth 1 eq? ] }
+                { [ over exact-float? ] [ ?nth 1 eq? ] }
+                [ 2drop f ]
+            } cond
+        ] %
+    ] [ ] make ;
+
+: member-quot ( seq -- newquot )
+    dup bit-member? [
+        bit-member-quot
+    ] [
+        [ literalize [ t ] ] { } map>assoc
+        [ drop f ] suffix [ case ] curry
+    ] if ;
+
+\ member? [
+    dup sequence? [ member-quot ] [ drop f ] if
+] 1 define-transform
+
+: memq-quot ( seq -- newquot )
+    [ [ dupd eq? ] curry [ drop t ] ] { } map>assoc
+    [ drop f ] suffix [ cond ] curry ;
+
+\ memq? [
+    dup sequence? [ memq-quot ] [ drop f ] if
+] 1 define-transform
diff --git a/extra/math/vectors/authors.txt b/basis/stack-checker/visitor/authors.txt
similarity index 100%
rename from extra/math/vectors/authors.txt
rename to basis/stack-checker/visitor/authors.txt
diff --git a/basis/stack-checker/visitor/dummy/dummy.factor b/basis/stack-checker/visitor/dummy/dummy.factor
new file mode 100644
index 0000000000..a24d8e226d
--- /dev/null
+++ b/basis/stack-checker/visitor/dummy/dummy.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: stack-checker.visitor kernel ;
+IN: stack-checker.visitor.dummy
+
+M: f child-visitor f ;
+M: f #introduce, drop ;
+M: f #call, 3drop ;
+M: f #call-recursive, 3drop ;
+M: f #push, 2drop ;
+M: f #shuffle, 3drop ;
+M: f #>r, 2drop ;
+M: f #r>, 2drop ;
+M: f #return, drop ;
+M: f #enter-recursive, 3drop ;
+M: f #return-recursive, 3drop ;
+M: f #terminate, 2drop ;
+M: f #if, 3drop ;
+M: f #dispatch, 2drop ;
+M: f #phi, 3drop ;
+M: f #declare, drop ;
+M: f #recursive, 3drop ;
+M: f #copy, 2drop ;
+M: f #drop, drop ;
+M: f #alien-invoke, drop ;
+M: f #alien-indirect, drop ;
+M: f #alien-callback, drop ;
diff --git a/basis/stack-checker/visitor/visitor.factor b/basis/stack-checker/visitor/visitor.factor
new file mode 100644
index 0000000000..7d8ec90453
--- /dev/null
+++ b/basis/stack-checker/visitor/visitor.factor
@@ -0,0 +1,32 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel arrays namespaces ;
+IN: stack-checker.visitor
+
+SYMBOL: stack-visitor
+
+HOOK: child-visitor stack-visitor ( -- visitor )
+
+: nest-visitor ( -- ) child-visitor stack-visitor set ;
+
+HOOK: #introduce, stack-visitor ( values -- )
+HOOK: #call, stack-visitor ( inputs outputs word -- )
+HOOK: #call-recursive, stack-visitor ( inputs outputs word -- )
+HOOK: #push, stack-visitor ( literal value -- )
+HOOK: #shuffle, stack-visitor ( inputs outputs mapping -- )
+HOOK: #drop, stack-visitor ( values -- )
+HOOK: #>r, stack-visitor ( inputs outputs -- )
+HOOK: #r>, stack-visitor ( inputs outputs -- )
+HOOK: #terminate, stack-visitor ( in-d in-r -- )
+HOOK: #if, stack-visitor ( ? true false -- )
+HOOK: #dispatch, stack-visitor ( n branches -- )
+HOOK: #phi, stack-visitor ( d-phi-in d-phi-out terminated -- )
+HOOK: #declare, stack-visitor ( declaration -- )
+HOOK: #return, stack-visitor ( stack -- )
+HOOK: #enter-recursive, stack-visitor ( label inputs outputs -- )
+HOOK: #return-recursive, stack-visitor ( label inputs outputs -- )
+HOOK: #recursive, stack-visitor ( label inputs visitor -- )
+HOOK: #copy, stack-visitor ( inputs outputs -- )
+HOOK: #alien-invoke, stack-visitor ( params -- )
+HOOK: #alien-indirect, stack-visitor ( params -- )
+HOOK: #alien-callback, stack-visitor ( params -- )
diff --git a/extra/tuple-syntax/authors.txt b/basis/state-parser/authors.txt
similarity index 100%
rename from extra/tuple-syntax/authors.txt
rename to basis/state-parser/authors.txt
diff --git a/extra/state-parser/state-parser-docs.factor b/basis/state-parser/state-parser-docs.factor
similarity index 100%
rename from extra/state-parser/state-parser-docs.factor
rename to basis/state-parser/state-parser-docs.factor
diff --git a/extra/state-parser/state-parser-tests.factor b/basis/state-parser/state-parser-tests.factor
similarity index 100%
rename from extra/state-parser/state-parser-tests.factor
rename to basis/state-parser/state-parser-tests.factor
diff --git a/extra/state-parser/state-parser.factor b/basis/state-parser/state-parser.factor
similarity index 87%
rename from extra/state-parser/state-parser.factor
rename to basis/state-parser/state-parser.factor
index b41d7f5023..15c83bf73a 100644
--- a/extra/state-parser/state-parser.factor
+++ b/basis/state-parser/state-parser.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2005, 2006 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
 USING: io io.streams.string kernel math namespaces sequences
-strings circular prettyprint debugger ascii sbufs fry inspector
-accessors sequences.lib ;
+strings circular prettyprint debugger ascii sbufs fry summary
+accessors ;
 IN: state-parser
 
 ! * Basic underlying words
@@ -48,7 +48,7 @@ M: expected summary ( obj -- str )
     ] with-string-writer ;
 
 TUPLE: unexpected-end < parsing-error ;
-: unexpected-end \ unexpected-end parsing-error throw ;
+: unexpected-end ( -- * ) \ unexpected-end parsing-error throw ;
 M: unexpected-end summary ( obj -- str )
     [
         call-next-method write
@@ -56,7 +56,7 @@ M: unexpected-end summary ( obj -- str )
     ] with-string-writer ;
 
 TUPLE: missing-close < parsing-error ;
-: missing-close \ missing-close parsing-error throw ;
+: missing-close ( -- * ) \ missing-close parsing-error throw ;
 M: missing-close summary ( obj -- str )
     [
         call-next-method write
@@ -88,13 +88,12 @@ SYMBOL: prolog-data
 : next* ( -- )
     get-char [ (next) record ] when ;
 
-: skip-until ( quot -- )
-    #! quot: ( -- ? )
+: skip-until ( quot: ( -- ? ) -- )
     get-char [
         [ call ] keep swap [ drop ] [
             next skip-until
         ] if
-    ] [ drop ] if ; inline
+    ] [ drop ] if ; inline recursive
 
 : take-until ( quot -- string )
     #! Take the substring of a string starting at spot
@@ -111,7 +110,7 @@ SYMBOL: prolog-data
     [ dup get-char = ] take-until nip ;
 
 TUPLE: not-enough-characters < parsing-error ;
-: not-enough-characters
+: not-enough-characters ( -- * )
     \ not-enough-characters parsing-error throw ;
 M: not-enough-characters summary ( obj -- str )
     [
@@ -121,7 +120,7 @@ M: not-enough-characters summary ( obj -- str )
 
 : take ( n -- string )
     [ 1- ] [ <sbuf> ] bi [
-        '[ drop get-char [ next , push f ] [ t ] if* ] attempt-each drop
+        '[ drop get-char [ next , push f ] [ t ] if* ] contains? drop
     ] keep get-char [ over push ] when* >string ;
 
 : pass-blank ( -- )
@@ -144,7 +143,7 @@ M: not-enough-characters summary ( obj -- str )
     ] if next ;
 
 : expect-string ( string -- )
-    dup [ drop get-char next ] map 2dup =
+    dup [ get-char next ] replicate 2dup =
     [ 2drop ] [ expected ] if ;
 
 : init-parser ( -- )
diff --git a/extra/state-parser/summary.txt b/basis/state-parser/summary.txt
similarity index 100%
rename from extra/state-parser/summary.txt
rename to basis/state-parser/summary.txt
diff --git a/extra/io/sockets/headers/authors.txt b/basis/structs/authors.txt
similarity index 100%
rename from extra/io/sockets/headers/authors.txt
rename to basis/structs/authors.txt
diff --git a/extra/structs/structs.factor b/basis/structs/structs.factor
similarity index 100%
rename from extra/structs/structs.factor
rename to basis/structs/structs.factor
diff --git a/extra/structs/summary.txt b/basis/structs/summary.txt
similarity index 100%
rename from extra/structs/summary.txt
rename to basis/structs/summary.txt
diff --git a/basis/summary/summary-docs.factor b/basis/summary/summary-docs.factor
new file mode 100644
index 0000000000..4dfbd16ed4
--- /dev/null
+++ b/basis/summary/summary-docs.factor
@@ -0,0 +1,12 @@
+IN: summary
+USING: kernel strings help.markup help.syntax ;
+
+ARTICLE: "summary" "Summary"
+"A word for getting very brief descriptions of words and general objects:"
+{ $subsection summary } ;
+
+HELP: summary
+{ $values { "object" object } { "string" string } }
+{ $contract "Outputs a brief description of the object." } ;
+
+ABOUT: "summary"
diff --git a/basis/summary/summary.factor b/basis/summary/summary.factor
new file mode 100644
index 0000000000..5da6599c63
--- /dev/null
+++ b/basis/summary/summary.factor
@@ -0,0 +1,42 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors classes sequences splitting kernel namespaces
+words math math.parser io.styles prettyprint assocs ;
+IN: summary
+
+GENERIC: summary ( object -- string )
+
+: object-summary ( object -- string )
+    class name>> " instance" append ;
+
+M: object summary object-summary ;
+
+M: input summary
+    [
+        "Input: " %
+        string>> "\n" split1 swap %
+        "..." "" ? %
+    ] "" make ;
+
+M: word summary synopsis ;
+
+M: sequence summary
+    [
+        dup class name>> %
+        " with " %
+        length #
+        " elements" %
+    ] "" make ;
+
+M: assoc summary
+    [
+        dup class name>> %
+        " with " %
+        assoc-size #
+        " entries" %
+    ] "" make ;
+
+! Override sequence => integer instance
+M: f summary object-summary ;
+
+M: integer summary object-summary ;
diff --git a/basis/symbols/authors.txt b/basis/symbols/authors.txt
new file mode 100644
index 0000000000..f372b574ae
--- /dev/null
+++ b/basis/symbols/authors.txt
@@ -0,0 +1,2 @@
+Slava Pestov
+Doug Coleman
diff --git a/extra/symbols/symbols-docs.factor b/basis/symbols/symbols-docs.factor
similarity index 100%
rename from extra/symbols/symbols-docs.factor
rename to basis/symbols/symbols-docs.factor
diff --git a/extra/symbols/symbols-tests.factor b/basis/symbols/symbols-tests.factor
similarity index 86%
rename from extra/symbols/symbols-tests.factor
rename to basis/symbols/symbols-tests.factor
index 1ae4a38cb7..274c4de85b 100755
--- a/extra/symbols/symbols-tests.factor
+++ b/basis/symbols/symbols-tests.factor
@@ -1,4 +1,5 @@
-USING: kernel symbols tools.test parser generic words accessors ;
+USING: kernel symbols tools.test parser generic words accessors
+eval ;
 IN: symbols.tests
 
 [ ] [ SYMBOLS: a b c ; ] unit-test
diff --git a/extra/symbols/symbols.factor b/basis/symbols/symbols.factor
similarity index 79%
rename from extra/symbols/symbols.factor
rename to basis/symbols/symbols.factor
index 20cf16e640..6cf8eac6fb 100755
--- a/extra/symbols/symbols.factor
+++ b/basis/symbols/symbols.factor
@@ -1,6 +1,7 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: parser sequences words kernel classes.singleton ;
+USING: parser lexer sequences words kernel classes.singleton
+classes.parser ;
 IN: symbols
 
 : SYMBOLS:
diff --git a/basis/syndication/authors.txt b/basis/syndication/authors.txt
new file mode 100755
index 0000000000..89b32cecee
--- /dev/null
+++ b/basis/syndication/authors.txt
@@ -0,0 +1,3 @@
+Daniel Ehrenberg
+Chris Double
+Slava Pestov
diff --git a/extra/rss/readme.txt b/basis/syndication/readme.txt
similarity index 100%
rename from extra/rss/readme.txt
rename to basis/syndication/readme.txt
diff --git a/extra/rss/summary.txt b/basis/syndication/summary.txt
similarity index 100%
rename from extra/rss/summary.txt
rename to basis/syndication/summary.txt
diff --git a/extra/rss/rss-tests.factor b/basis/syndication/syndication-tests.factor
similarity index 63%
rename from extra/rss/rss-tests.factor
rename to basis/syndication/syndication-tests.factor
index 0e6bb0b9c1..eb2095203c 100755
--- a/extra/rss/rss-tests.factor
+++ b/basis/syndication/syndication-tests.factor
@@ -1,6 +1,9 @@
-USING: rss io kernel io.files tools.test io.encodings.utf8
-calendar ;
-IN: rss.tests
+USING: syndication io kernel io.files tools.test io.encodings.utf8
+calendar urls ;
+IN: syndication.tests
+
+\ download-feed must-infer
+\ feed>xml must-infer
 
 : load-news-file ( filename -- feed )
     #! Load an news syndication file and process it, returning
@@ -11,32 +14,32 @@ IN: rss.tests
     feed
     f
     "Meerkat"
-    "http://meerkat.oreillynet.com"
+    URL" http://meerkat.oreillynet.com"
     {
         T{
             entry
             f
             "XML: A Disruptive Technology"
-            "http://c.moreover.com/click/here.pl?r123"
+            URL" http://c.moreover.com/click/here.pl?r123"
             "\n      XML is placing increasingly heavy loads on the existing technical\n      infrastructure of the Internet.\n    "
             f
         }
     }
-} ] [ "resource:extra/rss/rss1.xml" load-news-file ] unit-test
+} ] [ "resource:basis/syndication/test/rss1.xml" load-news-file ] unit-test
 [ T{
     feed
     f
     "dive into mark"
-    "http://example.org/"
+    URL" http://example.org/"
     {
         T{
             entry
             f
             "Atom draft-07 snapshot"
-            "http://example.org/2005/04/02/atom"
+            URL" http://example.org/2005/04/02/atom"
             "\n         <div xmlns=\"http://www.w3.org/1999/xhtml\">\n           <p><i>[Update: The Atom draft is finished.]</i></p>\n         </div>\n       "
 
             T{ timestamp f 2003 12 13 8 29 29 T{ duration f 0 0 0 -4 0 0 } }
         }
     }
-} ] [ "resource:extra/rss/atom.xml" load-news-file ] unit-test
+} ] [ "resource:basis/syndication/test/atom.xml" load-news-file ] unit-test
diff --git a/basis/syndication/syndication.factor b/basis/syndication/syndication.factor
new file mode 100644
index 0000000000..2fa8abcd59
--- /dev/null
+++ b/basis/syndication/syndication.factor
@@ -0,0 +1,135 @@
+! Copyright (C) 2006 Chris Double, Daniel Ehrenberg.
+! Portions copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: xml.utilities kernel assocs xml.generator math.order
+    strings sequences xml.data xml.writer
+    io.streams.string combinators xml xml.entities io.files io
+    http.client namespaces xml.generator hashtables
+    calendar.format accessors continuations urls present ;
+IN: syndication
+
+: any-tag-named ( tag names -- tag-inside )
+    f -rot [ tag-named nip dup ] with find 2drop ;
+
+TUPLE: feed title url entries ;
+
+: <feed> ( -- feed ) feed new ;
+
+TUPLE: entry title url description date ;
+
+: set-entries ( feed entries -- feed )
+    [ dup url>> ] dip
+    [ [ derive-url ] change-url ] with map
+    >>entries ;
+
+: <entry> ( -- entry ) entry new ;
+
+: try-parsing-timestamp ( string -- timestamp )
+    [ rfc822>timestamp ] [ drop rfc3339>timestamp ] recover ;
+
+: rss1.0-entry ( tag -- entry )
+    entry new
+    swap {
+        [ "title" tag-named children>string >>title ]
+        [ "link" tag-named children>string >url >>url ]
+        [ "description" tag-named children>string >>description ]
+        [
+            f "date" "http://purl.org/dc/elements/1.1/" <name>
+            tag-named dup [ children>string try-parsing-timestamp ] when
+            >>date
+        ]
+    } cleave ;
+
+: rss1.0 ( xml -- feed )
+    feed new
+    swap [
+        "channel" tag-named
+        [ "title" tag-named children>string >>title ]
+        [ "link" tag-named children>string >url >>url ] bi
+    ] [ "item" tags-named [ rss1.0-entry ] map set-entries ] bi ;
+
+: rss2.0-entry ( tag -- entry )
+    entry new
+    swap {
+        [ "title" tag-named children>string >>title ]
+        [ { "link" "guid" } any-tag-named children>string >url >>url ]
+        [ { "description" "encoded" } any-tag-named children>string >>description ]
+        [
+            { "date" "pubDate" } any-tag-named
+            children>string try-parsing-timestamp >>date
+        ]
+    } cleave ;
+
+: rss2.0 ( xml -- feed )
+    feed new
+    swap
+    "channel" tag-named 
+    [ "title" tag-named children>string >>title ]
+    [ "link" tag-named children>string >url >>url ]
+    [ "item" tags-named [ rss2.0-entry ] map set-entries ]
+    tri ;
+
+: atom1.0-entry ( tag -- entry )
+    entry new
+    swap {
+        [ "title" tag-named children>string >>title ]
+        [ "link" tag-named "href" swap at >url >>url ]
+        [
+            { "content" "summary" } any-tag-named
+            dup children>> [ string? not ] contains?
+            [ children>> [ write-chunk ] with-string-writer ]
+            [ children>string ] if >>description
+        ]
+        [
+            { "published" "updated" "issued" "modified" } 
+            any-tag-named children>string try-parsing-timestamp
+            >>date
+        ]
+    } cleave ;
+
+: atom1.0 ( xml -- feed )
+    feed new
+    swap
+    [ "title" tag-named children>string >>title ]
+    [ "link" tag-named "href" swap at >url >>url ]
+    [ "entry" tags-named [ atom1.0-entry ] map set-entries ]
+    tri ;
+
+: xml>feed ( xml -- feed )
+    dup main>> {
+        { "RDF" [ rss1.0 ] }
+        { "rss" [ rss2.0 ] }
+        { "feed" [ atom1.0 ] }
+    } case ;
+
+: read-feed ( string -- feed )
+    [ string>xml xml>feed ] with-html-entities ;
+
+: download-feed ( url -- feed )
+    #! Retrieve an news syndication file, return as a feed tuple.
+    http-get nip read-feed ;
+
+! Atom generation
+: simple-tag, ( content name -- )
+    [ , ] tag, ;
+
+: simple-tag*, ( content name attrs -- )
+    [ , ] tag*, ;
+
+: entry, ( entry -- )
+    "entry" [
+        {
+            [ title>> "title" { { "type" "html" } } simple-tag*, ]
+            [ url>> present "href" associate "link" swap contained*, ]
+            [ date>> timestamp>rfc3339 "published" simple-tag, ]
+            [ description>> [ "content" { { "type" "html" } } simple-tag*, ] when* ]
+        } cleave
+    ] tag, ;
+
+: feed>xml ( feed -- xml )
+    "feed" { { "xmlns" "http://www.w3.org/2005/Atom" } } [
+        [ title>> "title" simple-tag, ]
+        [ url>> present "href" associate "link" swap contained*, ]
+        [ entries>> [ entry, ] each ]
+        tri
+    ] make-xml* ;
diff --git a/basis/syndication/tags.txt b/basis/syndication/tags.txt
new file mode 100644
index 0000000000..c0772185a0
--- /dev/null
+++ b/basis/syndication/tags.txt
@@ -0,0 +1 @@
+web
diff --git a/extra/rss/atom.xml b/basis/syndication/test/atom.xml
similarity index 100%
rename from extra/rss/atom.xml
rename to basis/syndication/test/atom.xml
diff --git a/extra/rss/rss1.xml b/basis/syndication/test/rss1.xml
similarity index 100%
rename from extra/rss/rss1.xml
rename to basis/syndication/test/rss1.xml
diff --git a/extra/mime-types/authors.txt b/basis/threads/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/mime-types/authors.txt
rename to basis/threads/authors.txt
diff --git a/core/threads/summary.txt b/basis/threads/summary.txt
similarity index 100%
rename from core/threads/summary.txt
rename to basis/threads/summary.txt
diff --git a/core/threads/threads-docs.factor b/basis/threads/threads-docs.factor
similarity index 93%
rename from core/threads/threads-docs.factor
rename to basis/threads/threads-docs.factor
index 7d8791d493..3c4715d3e3 100755
--- a/core/threads/threads-docs.factor
+++ b/basis/threads/threads-docs.factor
@@ -1,6 +1,6 @@
 USING: help.markup help.syntax kernel kernel.private io
 threads.private continuations dlists init quotations strings
-assocs heaps boxes namespaces ;
+assocs heaps boxes namespaces deques ;
 IN: threads
 
 ARTICLE: "threads-start/stop" "Starting and stopping threads"
@@ -38,7 +38,7 @@ ARTICLE: "thread-state" "Thread-local state and variables"
 { $subsection tchange }
 "Each thread has its own independent set of thread-local variables and newly-spawned threads begin with an empty set."
 $nl
-"Global hashtable of all threads, keyed by " { $link thread-id } ":"
+"Global hashtable of all threads, keyed by " { $snippet "id" } ":"
 { $subsection threads }
 "Threads have an identity independent of continuations. If a continuation is refied in one thread and then resumed in another thread, the code running in that continuation will observe a change in the value output by " { $link self } "." ;
 
@@ -63,10 +63,10 @@ ABOUT: "threads"
 HELP: thread
 { $class-description "A thread. The slots are as follows:"
     { $list
-        { { $link thread-id } " - a unique identifier assigned to each thread." }
-        { { $link thread-name } " - the name passed to " { $link spawn } "." }
-        { { $link thread-quot } " - the initial quotation passed to " { $link spawn } "." }
-        { { $link thread-continuation } " - a " { $link box } "; if the thread is ready to run, the box holds the continuation, otherwise it is empty." }
+        { { $snippet "id" } " - a unique identifier assigned to each thread." }
+        { { $snippet "name" } " - the name passed to " { $link spawn } "." }
+        { { $snippet "quot" } " - the initial quotation passed to " { $link spawn } "." }
+        { { $snippet "continuation" } " - a " { $link box } "; if the thread is ready to run, the box holds the continuation, otherwise it is empty." }
     }
 } ;
 
@@ -86,7 +86,7 @@ HELP: run-queue
 { $var-description "Global variable holding the queue of runnable threads. Calls to " { $link yield } " switch to the thread which has been in the queue for the longest period of time."
 $nl
 "By convention, threads are queued with " { $link push-front } 
-" and dequeued with " { $link pop-back } "." } ;
+" and dequed with " { $link pop-back } "." } ;
 
 HELP: resume
 { $values { "thread" thread } }
diff --git a/core/threads/threads-tests.factor b/basis/threads/threads-tests.factor
similarity index 95%
rename from core/threads/threads-tests.factor
rename to basis/threads/threads-tests.factor
index 122b7f1d59..adac84338d 100755
--- a/core/threads/threads-tests.factor
+++ b/basis/threads/threads-tests.factor
@@ -41,3 +41,5 @@ yield
     ] ;
 
 [ t ] [ spawn-namespace-test ] unit-test
+
+[ "a" [ 1 1 + ] spawn 100 sleep ] must-fail
diff --git a/core/threads/threads.factor b/basis/threads/threads.factor
similarity index 85%
rename from core/threads/threads.factor
rename to basis/threads/threads.factor
index a1c7e208dc..8a4d433273 100755
--- a/core/threads/threads.factor
+++ b/basis/threads/threads.factor
@@ -4,18 +4,24 @@
 USING: arrays hashtables heaps kernel kernel.private math
 namespaces sequences vectors continuations continuations.private
 dlists assocs system combinators init boxes accessors
-math.order ;
+math.order deques strings quotations ;
 IN: threads
 
 SYMBOL: initial-thread
 
 TUPLE: thread
-name quot exit-handler
-id
-continuation state runnable
-mailbox variables sleep-entry ;
+{ name string }
+{ quot callable initial: [ ] }
+{ exit-handler callable initial: [ ] }
+{ id integer }
+continuation
+state
+runnable
+mailbox
+variables
+sleep-entry ;
 
-: self ( -- thread ) 40 getenv ; inline
+: self ( -- thread ) 63 getenv ; inline
 
 ! Thread-local storage
 : tnamespace ( -- assoc )
@@ -30,18 +36,18 @@ mailbox variables sleep-entry ;
 : tchange ( key quot -- )
     tnamespace swap change-at ; inline
 
-: threads 41 getenv ;
+: threads 64 getenv ;
 
 : thread ( id -- thread ) threads at ;
 
 : thread-registered? ( thread -- ? )
     id>> threads key? ;
 
-: check-unregistered
+: check-unregistered ( thread -- thread )
     dup thread-registered?
     [ "Thread already stopped" throw ] when ;
 
-: check-registered
+: check-registered ( thread -- thread )
     dup thread-registered?
     [ "Thread is not running" throw ] unless ;
 
@@ -53,7 +59,7 @@ mailbox variables sleep-entry ;
 : unregister-thread ( thread -- )
     check-registered id>> threads delete-at ;
 
-: set-self ( thread -- ) 40 setenv ; inline
+: set-self ( thread -- ) 63 setenv ; inline
 
 PRIVATE>
 
@@ -62,15 +68,14 @@ PRIVATE>
         swap >>name
         swap >>quot
         \ thread counter >>id
-        <box> >>continuation
-        [ ] >>exit-handler ; inline
+        <box> >>continuation ; inline
 
 : <thread> ( quot name -- thread )
     \ thread new-thread ;
 
-: run-queue 42 getenv ;
+: run-queue 65 getenv ;
 
-: sleep-queue 43 getenv ;
+: sleep-queue 66 getenv ;
 
 : resume ( thread -- )
     f >>state
@@ -86,7 +91,7 @@ PRIVATE>
 
 : sleep-time ( -- ms/f )
     {
-        { [ run-queue dlist-empty? not ] [ 0 ] }
+        { [ run-queue deque-empty? not ] [ 0 ] }
         { [ sleep-queue heap-empty? ] [ f ] }
         [ sleep-queue heap-peek nip millis [-] ]
     } cond ;
@@ -146,7 +151,7 @@ DEFER: next
 
 : next ( -- * )
     expire-sleep-loop
-    run-queue dup dlist-empty? [
+    run-queue dup deque-empty? [
         drop no-runnable-threads
     ] [
         pop-back dup array? [ first2 ] [ f swap ] if (next)
@@ -195,7 +200,7 @@ M: real sleep
     <thread> [ (spawn) ] keep ;
 
 : spawn-server ( quot name -- thread )
-    >r [ [ ] [ ] while ] curry r> spawn ;
+    >r [ loop ] curry r> spawn ;
 
 : in-thread ( quot -- )
     >r datastack r>
@@ -207,20 +212,17 @@ GENERIC: error-in-thread ( error thread -- )
 <PRIVATE
 
 : init-threads ( -- )
-    H{ } clone 41 setenv
-    <dlist> 42 setenv
-    <min-heap> 43 setenv
+    H{ } clone 64 setenv
+    <dlist> 65 setenv
+    <min-heap> 66 setenv
     initial-thread global
-    [ drop f "Initial" <thread> ] cache
+    [ drop [ ] "Initial" <thread> ] cache
     <box> >>continuation
     t >>runnable
     f >>state
     dup register-thread
     set-self ;
 
-[ self error-in-thread stop ]
-thread-error-hook set-global
-
 PRIVATE>
 
 [ init-threads ] "threads" add-init-hook
diff --git a/extra/tools/annotations/annotations-docs.factor b/basis/tools/annotations/annotations-docs.factor
similarity index 51%
rename from extra/tools/annotations/annotations-docs.factor
rename to basis/tools/annotations/annotations-docs.factor
index affb95c761..f0a3235e62 100755
--- a/extra/tools/annotations/annotations-docs.factor
+++ b/basis/tools/annotations/annotations-docs.factor
@@ -1,4 +1,5 @@
-USING: help.markup help.syntax words parser ;
+USING: help.markup help.syntax words parser quotations strings
+system sequences ;
 IN: tools.annotations
 
 ARTICLE: "tools.annotations" "Word annotations"
@@ -20,6 +21,8 @@ HELP: watch
 { $values { "word" word } }
 { $description "Annotates a word definition to print the data stack on entry and exit." } ;
 
+{ watch watch-vars reset } related-words
+
 HELP: breakpoint
 { $values { "word" word } }
 { $description "Annotates a word definition to enter the single stepper when executed." } ;
@@ -27,3 +30,36 @@ HELP: breakpoint
 HELP: breakpoint-if
 { $values { "quot" "a quotation with stack effect" { $snippet "( -- ? )" } } { "word" word } }
 { $description "Annotates a word definition to enter the single stepper if the quotation yields true." } ;
+
+HELP: annotate-methods
+{ $values
+     { "word" word } { "quot" quotation } }
+{ $description "Annotates the word -- for generic words, all its methods -- with the quotation." } ;
+
+HELP: entering
+{ $values
+     { "str" string } }
+{ $description "Prints a message and the inputs to the word before the word has been called." } ;
+
+HELP: leaving
+{ $values
+     { "str" string } }
+{ $description "Prints a message and the outputs from a word after a word has been called." } ;
+
+HELP: reset
+{ $values
+     { "word" word } }
+{ $description "Resets any annotations on a word." }
+{ $notes "This word will remove a " { $link watch } "." } ;
+
+HELP: watch-vars
+{ $values
+     { "word" word } { "vars" "a sequence of symbols" } }
+{ $description "Annotates a word definition to print the " { $snippet "vars" } " upon entering the word. This word is useful for debugging." } ;
+
+HELP: word-inputs
+{ $values
+     { "word" word }
+     { "seq" sequence } }
+{ $description "Makes a sequence of the inputs to a word by counting the number of inputs in the stack effect and saving that many items from the datastack." } ;
+
diff --git a/extra/tools/annotations/annotations-tests.factor b/basis/tools/annotations/annotations-tests.factor
similarity index 54%
rename from extra/tools/annotations/annotations-tests.factor
rename to basis/tools/annotations/annotations-tests.factor
index ec8f48a161..1e1eccb8b5 100755
--- a/extra/tools/annotations/annotations-tests.factor
+++ b/basis/tools/annotations/annotations-tests.factor
@@ -1,4 +1,5 @@
-USING: tools.test tools.annotations math parser ;
+USING: tools.test tools.annotations math parser eval
+io.streams.string kernel ;
 IN: tools.annotations.tests
 
 : foo ;
@@ -24,3 +25,16 @@ M: integer some-generic 1+ ;
 [ ] [ \ some-generic reset ] unit-test
 
 [ 2 ] [ 3 some-generic ] unit-test
+
+! slava's bug
+GENERIC: another-generic ( a -- b )
+
+M: object another-generic ;
+
+\ another-generic watch
+
+[ ] [ "IN: tools.annotations.tests GENERIC: another-generic ( a -- b )" eval ] unit-test
+
+[ ] [ \ another-generic reset ] unit-test
+
+[ "" ] [ [ 3 another-generic drop ] with-string-writer ] unit-test
diff --git a/extra/tools/annotations/annotations.factor b/basis/tools/annotations/annotations.factor
similarity index 82%
rename from extra/tools/annotations/annotations.factor
rename to basis/tools/annotations/annotations.factor
index d6016f280c..96c2ec2fcc 100755
--- a/extra/tools/annotations/annotations.factor
+++ b/basis/tools/annotations/annotations.factor
@@ -1,8 +1,9 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel words parser io inspector quotations sequences
-prettyprint continuations effects definitions compiler.units
-namespaces assocs tools.walker generic ;
+USING: accessors kernel words parser io summary quotations
+sequences prettyprint continuations effects definitions
+compiler.units namespaces assocs tools.walker generic
+inspector ;
 IN: tools.annotations
 
 GENERIC: reset ( word -- )
@@ -24,13 +25,13 @@ M: word reset
         "Cannot annotate a word twice" throw
     ] when
     [
-        over dup word-def "unannotated-def" set-word-prop
-        >r dup word-def r> call define
+        over dup def>> "unannotated-def" set-word-prop
+        >r dup def>> r> call define
     ] with-compilation-unit ; inline
 
 : word-inputs ( word -- seq )
     stack-effect [
-        >r datastack r> effect-in length tail*
+        >r datastack r> in>> length tail*
     ] [
         datastack
     ] if* ;
@@ -43,7 +44,7 @@ M: word reset
 : leaving ( str -- )
     "/-- Leaving: " write dup .
     stack-effect [
-        >r datastack r> effect-out length tail* stack.
+        >r datastack r> out>> length tail* stack.
     ] [
         .s
     ] if* "\\--" print flush ;
diff --git a/extra/models/authors.txt b/basis/tools/annotations/authors.txt
similarity index 100%
rename from extra/models/authors.txt
rename to basis/tools/annotations/authors.txt
diff --git a/extra/tools/annotations/summary.txt b/basis/tools/annotations/summary.txt
similarity index 100%
rename from extra/tools/annotations/summary.txt
rename to basis/tools/annotations/summary.txt
diff --git a/extra/tools/annotations/tags.txt b/basis/tools/annotations/tags.txt
similarity index 100%
rename from extra/tools/annotations/tags.txt
rename to basis/tools/annotations/tags.txt
diff --git a/extra/opengl/gl/authors.txt b/basis/tools/completion/authors.txt
similarity index 100%
rename from extra/opengl/gl/authors.txt
rename to basis/tools/completion/authors.txt
diff --git a/extra/tools/completion/completion-docs.factor b/basis/tools/completion/completion-docs.factor
similarity index 100%
rename from extra/tools/completion/completion-docs.factor
rename to basis/tools/completion/completion-docs.factor
diff --git a/extra/tools/completion/completion.factor b/basis/tools/completion/completion.factor
similarity index 100%
rename from extra/tools/completion/completion.factor
rename to basis/tools/completion/completion.factor
diff --git a/extra/tools/completion/summary.txt b/basis/tools/completion/summary.txt
similarity index 100%
rename from extra/tools/completion/summary.txt
rename to basis/tools/completion/summary.txt
diff --git a/extra/opengl/glu/authors.txt b/basis/tools/crossref/authors.txt
similarity index 100%
rename from extra/opengl/glu/authors.txt
rename to basis/tools/crossref/authors.txt
diff --git a/extra/tools/crossref/crossref-docs.factor b/basis/tools/crossref/crossref-docs.factor
similarity index 100%
rename from extra/tools/crossref/crossref-docs.factor
rename to basis/tools/crossref/crossref-docs.factor
diff --git a/extra/tools/crossref/crossref-tests.factor b/basis/tools/crossref/crossref-tests.factor
similarity index 83%
rename from extra/tools/crossref/crossref-tests.factor
rename to basis/tools/crossref/crossref-tests.factor
index 0717763ed0..5bf917f906 100755
--- a/extra/tools/crossref/crossref-tests.factor
+++ b/basis/tools/crossref/crossref-tests.factor
@@ -6,7 +6,7 @@ GENERIC: foo
 
 M: integer foo + ;
 
-"resource:extra/tools/crossref/test/foo.factor" run-file
+"resource:basis/tools/crossref/test/foo.factor" run-file
 
 [ t ] [ integer \ foo method \ + usage member? ] unit-test
 [ t ] [ \ foo usage [ pathname? ] contains? ] unit-test
diff --git a/extra/tools/crossref/crossref.factor b/basis/tools/crossref/crossref.factor
similarity index 64%
rename from extra/tools/crossref/crossref.factor
rename to basis/tools/crossref/crossref.factor
index f4515a9ebe..c4b046eccc 100755
--- a/extra/tools/crossref/crossref.factor
+++ b/basis/tools/crossref/crossref.factor
@@ -1,16 +1,16 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions assocs io kernel
+USING: accessors arrays definitions assocs io kernel
 math namespaces prettyprint sequences strings io.styles words
-generic tools.completion quotations parser inspector
+generic tools.completion quotations parser summary
 sorting hashtables vocabs parser source-files ;
 IN: tools.crossref
 
 : usage. ( word -- )
-    usage sorted-definitions. ;
+    smart-usage sorted-definitions. ;
 
 : words-matching ( str -- seq )
-    all-words [ dup word-name ] { } map>assoc completions ;
+    all-words [ dup name>> ] { } map>assoc completions ;
 
 : apropos ( str -- )
     words-matching synopsis-alist reverse definitions. ;
diff --git a/extra/tools/crossref/summary.txt b/basis/tools/crossref/summary.txt
similarity index 100%
rename from extra/tools/crossref/summary.txt
rename to basis/tools/crossref/summary.txt
diff --git a/extra/tools/crossref/tags.txt b/basis/tools/crossref/tags.txt
similarity index 100%
rename from extra/tools/crossref/tags.txt
rename to basis/tools/crossref/tags.txt
diff --git a/extra/tools/crossref/test/foo.factor b/basis/tools/crossref/test/foo.factor
similarity index 100%
rename from extra/tools/crossref/test/foo.factor
rename to basis/tools/crossref/test/foo.factor
diff --git a/extra/optimizer/debugger/authors.txt b/basis/tools/deploy/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/optimizer/debugger/authors.txt
rename to basis/tools/deploy/authors.txt
diff --git a/extra/tools/annotations/authors.txt b/basis/tools/deploy/backend/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/tools/annotations/authors.txt
rename to basis/tools/deploy/backend/authors.txt
diff --git a/extra/tools/deploy/backend/backend.factor b/basis/tools/deploy/backend/backend.factor
similarity index 89%
rename from extra/tools/deploy/backend/backend.factor
rename to basis/tools/deploy/backend/backend.factor
index 6c5f7e7775..ae4f6a8d62 100755
--- a/extra/tools/deploy/backend/backend.factor
+++ b/basis/tools/deploy/backend/backend.factor
@@ -3,7 +3,7 @@
 USING: namespaces continuations.private kernel.private init
 assocs kernel vocabs words sequences memory io system arrays
 continuations math definitions mirrors splitting parser classes
-inspector layouts vocabs.loader prettyprint.config prettyprint
+summary layouts vocabs.loader prettyprint.config prettyprint
 debugger io.streams.c io.files io.backend
 quotations io.launcher words.private tools.deploy.config
 bootstrap.image io.encodings.utf8 destructors accessors ;
@@ -40,16 +40,15 @@ IN: tools.deploy.backend
     my-boot-image-name resource-path exists?
     [ my-arch make-image ] unless ;
 
-: ?, [ , ] [ drop ] if ;
-
 : bootstrap-profile ( -- profile )
-    [
-        "math" deploy-math? get ?,
-        "compiler" deploy-compiler? get ?,
-        "ui" deploy-ui? get ?,
-        "io" native-io? ?,
-        "random" deploy-random? get ?,
-    ] { } make ;
+    {
+        { "math"     deploy-math?     }
+        { "compiler" deploy-compiler? }
+        { "threads"  deploy-threads?  }
+        { "ui"       deploy-ui?       }
+        { "random"   deploy-random?   }
+    } [ nip get ] assoc-filter keys
+    native-io? [ "io" suffix ] when ;
 
 : staging-image-name ( profile -- name )
     "staging."
diff --git a/extra/tools/completion/authors.txt b/basis/tools/deploy/config/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/tools/completion/authors.txt
rename to basis/tools/deploy/config/authors.txt
diff --git a/extra/tools/deploy/config/config-docs.factor b/basis/tools/deploy/config/config-docs.factor
similarity index 100%
rename from extra/tools/deploy/config/config-docs.factor
rename to basis/tools/deploy/config/config-docs.factor
diff --git a/extra/tools/deploy/config/config.factor b/basis/tools/deploy/config/config.factor
similarity index 82%
rename from extra/tools/deploy/config/config.factor
rename to basis/tools/deploy/config/config.factor
index 589d6c613b..0ebda89b15 100755
--- a/extra/tools/deploy/config/config.factor
+++ b/basis/tools/deploy/config/config.factor
@@ -22,9 +22,9 @@ SYMBOL: deploy-io
         { 3 "Level 3 - Non-blocking streams and networking" }
     } ;
 
-: strip-io? deploy-io get 1 = ;
+: strip-io? ( -- ? ) deploy-io get 1 = ;
 
-: native-io? deploy-io get 3 = ;
+: native-io? ( -- ? ) deploy-io get 3 = ;
 
 SYMBOL: deploy-reflection
 
@@ -38,11 +38,11 @@ SYMBOL: deploy-reflection
         { 6 "Level 6 - Full environment" }
     } ;
 
-: strip-word-names? deploy-reflection get 2 < ;
-: strip-prettyprint? deploy-reflection get 3 < ;
-: strip-debugger? deploy-reflection get 4 < ;
-: strip-dictionary? deploy-reflection get 5 < ;
-: strip-globals? deploy-reflection get 6 < ;
+: strip-word-names? ( -- ? ) deploy-reflection get 2 < ;
+: strip-prettyprint? ( -- ? ) deploy-reflection get 3 < ;
+: strip-debugger? ( -- ? ) deploy-reflection get 4 < ;
+: strip-dictionary? ( -- ? ) deploy-reflection get 5 < ;
+: strip-globals? ( -- ? ) deploy-reflection get 6 < ;
 
 SYMBOL: deploy-word-props?
 SYMBOL: deploy-word-defs?
@@ -73,7 +73,7 @@ SYMBOL: deploy-image
 : deploy-config ( vocab -- assoc )
     dup default-config swap
     dup deploy-config-path vocab-file-contents
-    parse-fresh dup empty? [ drop ] [ first assoc-union ] if ;
+    parse-fresh [ first assoc-union ] unless-empty ;
 
 : set-deploy-config ( assoc vocab -- )
     >r unparse-use string-lines r>
diff --git a/extra/tools/deploy/deploy-docs.factor b/basis/tools/deploy/deploy-docs.factor
similarity index 100%
rename from extra/tools/deploy/deploy-docs.factor
rename to basis/tools/deploy/deploy-docs.factor
diff --git a/basis/tools/deploy/deploy-tests.factor b/basis/tools/deploy/deploy-tests.factor
new file mode 100755
index 0000000000..acee098b8f
--- /dev/null
+++ b/basis/tools/deploy/deploy-tests.factor
@@ -0,0 +1,96 @@
+IN: tools.deploy.tests
+USING: tools.test system io.files kernel tools.deploy.config
+tools.deploy.backend math sequences io.launcher arrays
+namespaces continuations layouts accessors ;
+
+: shake-and-bake ( vocab -- )
+    [ "test.image" temp-file delete-file ] ignore-errors
+    "resource:" [
+        >r vm
+        "test.image" temp-file
+        r> dup deploy-config make-deploy-image
+    ] with-directory ;
+
+: small-enough? ( n -- ? )
+    >r "test.image" temp-file file-info size>> r> cell 4 / * <= ;
+
+[ ] [ "hello-world" shake-and-bake ] unit-test
+
+[ t ] [ 500000 small-enough? ] unit-test
+
+[ ] [ "sudoku" shake-and-bake ] unit-test
+
+[ t ] [ 800000 small-enough? ] unit-test
+
+[ ] [ "hello-ui" shake-and-bake ] unit-test
+
+[ t ] [ 1300000 small-enough? ] unit-test
+
+[ "staging.math-compiler-threads-ui-strip.image" ] [
+    "hello-ui" deploy-config
+    [ bootstrap-profile staging-image-name file-name ] bind
+] unit-test
+
+[ ] [ "maze" shake-and-bake ] unit-test
+
+[ t ] [ 1200000 small-enough? ] unit-test
+
+! [ ] [ "tetris" shake-and-bake ] unit-test
+! 
+! [ t ] [ 1500000 small-enough? ] unit-test
+! 
+[ ] [ "bunny" shake-and-bake ] unit-test
+
+[ t ] [ 2500000 small-enough? ] unit-test
+
+{
+    "tools.deploy.test.1"
+    "tools.deploy.test.2"
+    "tools.deploy.test.3"
+    "tools.deploy.test.4"
+} [
+    [ ] swap [
+        shake-and-bake
+        vm
+        "-i=" "test.image" temp-file append
+        2array try-process
+    ] curry unit-test
+] each
+
+USING: http.client http.server http.server.dispatchers
+http.server.responses http.server.static io.servers.connection ;
+
+SINGLETON: quit-responder
+
+M: quit-responder call-responder*
+    2drop stop-server "Goodbye" "text/html" <content> ;
+
+: add-quot-responder ( responder -- responder )
+    quit-responder "quit" add-responder ;
+
+: test-httpd ( -- )
+    #! Return as soon as server is running.
+    <http-server>
+        1237 >>insecure
+        f >>secure
+    start-server* ;
+
+[ ] [
+    [
+        <dispatcher>
+            add-quot-responder
+            "resource:basis/http/test" <static> >>default
+        main-responder set
+
+        test-httpd
+    ] with-scope
+] unit-test
+
+[ ] [
+    "tools.deploy.test.5" shake-and-bake
+    vm
+    "-i=" "test.image" temp-file append
+    2array try-process
+] unit-test
+
+[ ] [ "http://localhost:1237/quit" http-get 2drop ] unit-test
diff --git a/extra/tools/deploy/deploy.factor b/basis/tools/deploy/deploy.factor
similarity index 100%
rename from extra/tools/deploy/deploy.factor
rename to basis/tools/deploy/deploy.factor
diff --git a/extra/tools/crossref/authors.txt b/basis/tools/deploy/macosx/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/tools/crossref/authors.txt
rename to basis/tools/deploy/macosx/authors.txt
diff --git a/extra/tools/deploy/macosx/macosx.factor b/basis/tools/deploy/macosx/macosx.factor
similarity index 100%
rename from extra/tools/deploy/macosx/macosx.factor
rename to basis/tools/deploy/macosx/macosx.factor
diff --git a/extra/tools/deploy/macosx/summary.txt b/basis/tools/deploy/macosx/summary.txt
similarity index 100%
rename from extra/tools/deploy/macosx/summary.txt
rename to basis/tools/deploy/macosx/summary.txt
diff --git a/basis/tools/deploy/macosx/tags.txt b/basis/tools/deploy/macosx/tags.txt
new file mode 100644
index 0000000000..660d511420
--- /dev/null
+++ b/basis/tools/deploy/macosx/tags.txt
@@ -0,0 +1,2 @@
+unportable
+tools
diff --git a/extra/tools/deploy/restage/restage.factor b/basis/tools/deploy/restage/restage.factor
similarity index 100%
rename from extra/tools/deploy/restage/restage.factor
rename to basis/tools/deploy/restage/restage.factor
diff --git a/extra/tools/deploy/authors.txt b/basis/tools/deploy/shaker/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/tools/deploy/authors.txt
rename to basis/tools/deploy/shaker/authors.txt
diff --git a/extra/tools/deploy/shaker/shaker.factor b/basis/tools/deploy/shaker/shaker.factor
similarity index 58%
rename from extra/tools/deploy/shaker/shaker.factor
rename to basis/tools/deploy/shaker/shaker.factor
index e8675f5891..7e37436654 100755
--- a/extra/tools/deploy/shaker/shaker.factor
+++ b/basis/tools/deploy/shaker/shaker.factor
@@ -1,9 +1,10 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: qualified io.streams.c init fry namespaces assocs kernel
-parser tools.deploy.config vocabs sequences words words.private
-memory kernel.private continuations io prettyprint
-vocabs.loader debugger system strings sets ;
+USING: accessors qualified io.streams.c init fry namespaces
+assocs kernel parser lexer strings.parser tools.deploy.config
+vocabs sequences words words.private memory kernel.private
+continuations io prettyprint vocabs.loader debugger system
+strings sets vectors quotations byte-arrays ;
 QUALIFIED: bootstrap.stage2
 QUALIFIED: classes
 QUALIFIED: command-line
@@ -12,21 +13,20 @@ QUALIFIED: compiler.units
 QUALIFIED: continuations
 QUALIFIED: definitions
 QUALIFIED: init
-QUALIFIED: inspector
 QUALIFIED: io.backend
 QUALIFIED: io.thread
 QUALIFIED: layouts
-QUALIFIED: libc.private
-QUALIFIED: libc.private
 QUALIFIED: listener
 QUALIFIED: prettyprint.config
 QUALIFIED: source-files
-QUALIFIED: threads
 QUALIFIED: vocabs
 IN: tools.deploy.shaker
 
+! This file is some hairy shit.
+
 : strip-init-hooks ( -- )
     "Stripping startup hooks" show
+    "cpu.x86" init-hooks get delete-at
     "command-line" init-hooks get delete-at
     "libc" init-hooks get delete-at
     deploy-threads? get [
@@ -42,52 +42,123 @@ IN: tools.deploy.shaker
 : strip-debugger ( -- )
     strip-debugger? [
         "Stripping debugger" show
-        "resource:extra/tools/deploy/shaker/strip-debugger.factor"
+        "resource:basis/tools/deploy/shaker/strip-debugger.factor"
         run-file
     ] when ;
 
 : strip-libc ( -- )
     "libc" vocab [
         "Stripping manual memory management debug code" show
-        "resource:extra/tools/deploy/shaker/strip-libc.factor"
+        "resource:basis/tools/deploy/shaker/strip-libc.factor"
         run-file
     ] when ;
 
 : strip-cocoa ( -- )
     "cocoa" vocab [
         "Stripping unused Cocoa methods" show
-        "resource:extra/tools/deploy/shaker/strip-cocoa.factor"
+        "resource:basis/tools/deploy/shaker/strip-cocoa.factor"
         run-file
     ] when ;
 
 : strip-word-names ( words -- )
     "Stripping word names" show
-    [ f over set-word-name f swap set-word-vocabulary ] each ;
+    [ f >>name f >>vocabulary drop ] each ;
 
 : strip-word-defs ( words -- )
     "Stripping symbolic word definitions" show
-    [ [ ] swap set-word-def ] each ;
+    [ "no-def-strip" word-prop not ] filter
+    [ [ ] >>def drop ] each ;
 
-: strip-word-props ( retain-props words -- )
+: sift-assoc ( assoc -- assoc' ) [ nip ] assoc-filter ;
+
+: strip-word-props ( stripped-props words -- )
     "Stripping word properties" show
     [
         [
-            word-props swap
-            '[ , nip member? ] assoc-filter
-            f assoc-like
-        ] keep set-word-props
+            props>> swap
+            '[ drop , member? not ] assoc-filter sift-assoc
+            dup assoc-empty? [ drop f ] [ >alist >vector ] if
+        ] keep (>>props)
     ] with each ;
 
-: retained-props ( -- seq )
+: stripped-word-props ( -- seq )
     [
-        "class" ,
-        "metaclass" ,
-        "layout" ,
-        deploy-ui? get [
-            "gestures" ,
-            "commands" ,
-            { "+nullary+" "+listener+" "+description+" }
-            [ "ui.commands" lookup , ] each
+        strip-dictionary? [
+            {
+                "cannot-infer"
+                "coercer"
+                "combination"
+                "compiled-effect"
+                "compiled-generic-uses"
+                "compiled-uses"
+                "constraints"
+                "declared-effect"
+                "default"
+                "default-method"
+                "default-output-classes"
+                "derived-from"
+                "engines"
+                "if-intrinsics"
+                "infer"
+                "inferred-effect"
+                "inline"
+                "inlined-block"
+                "input-classes"
+                "interval"
+                "intrinsics"
+                "lambda"
+                "loc"
+                "local-reader"
+                "local-reader?"
+                "local-writer"
+                "local-writer?"
+                "local?"
+                "macro"
+                "members"
+                "memo-quot"
+                "method-class"
+                "method-generic"
+                "methods"
+                "no-compile"
+                "optimizer-hooks"
+                "outputs"
+                "participants"
+                "predicate"
+                "predicate-definition"
+                "predicating"
+                "reader"
+                "reading"
+                "recursive"
+                "shuffle"
+                "slot-names"
+                "slots"
+                "special"
+                "specializer"
+                "step-into"
+                "step-into?"
+                "transform-n"
+                "transform-quot"
+                "tuple-dispatch-generic"
+                "type"
+                "writer"
+                "writing"
+            } %
+        ] when
+        
+        strip-prettyprint? [
+            {
+                "break-before"
+                "break-after"
+                "delimiter"
+                "flushable"
+                "foldable"
+                "inline"
+                "lambda"
+                "macro"
+                "memo-quot"
+                "parsing"
+                "word-style"
+            } %
         ] when
     ] { } make ;
 
@@ -110,6 +181,8 @@ IN: tools.deploy.shaker
     [
         "callbacks" "alien.compiler" lookup ,
 
+        "inspector-hook" "inspector" lookup ,
+
         {
             bootstrap.stage2:bootstrap-time
             continuations:error
@@ -118,26 +191,26 @@ IN: tools.deploy.shaker
             continuations:restarts
             listener:error-hook
             init:init-hooks
-            inspector:inspector-hook
             io.thread:io-thread
-            libc.private:mallocs
             source-files:source-files
             input-stream
             output-stream
             error-stream
         } %
 
+        "mallocs" "libc.private" lookup ,
+
         deploy-threads? [
-            threads:initial-thread ,
+            "initial-thread" "threads" lookup ,
         ] unless
 
         strip-io? [ io.backend:io-backend , ] when
 
-        [
-            io.backend:io-backend ,
-            "default-buffer-size" "io.ports" lookup ,
-        ] { } make
-        { "alarms" "io" "tools" } strip-vocab-globals %
+        { } {
+            "alarms"
+            "tools"
+            "io.launcher"
+        } strip-vocab-globals %
 
         strip-dictionary? [
             { } { "cpu" } strip-vocab-globals %
@@ -150,9 +223,11 @@ IN: tools.deploy.shaker
                 classes:class-or-cache
                 classes:class<=-cache
                 classes:classes-intersect-cache
+                classes:implementors-map
                 classes:update-map
                 command-line:main-vocab-hook
                 compiled-crossref
+                compiled-generic-crossref
                 compiler.units:recompile-hook
                 compiler.units:update-tuples-hook
                 definitions:crossref
@@ -171,13 +246,14 @@ IN: tools.deploy.shaker
                 word
             } %
 
-            { } { "optimizer.math.partial" } strip-vocab-globals %
+            { } { "math.partial-dispatch" } strip-vocab-globals %
         ] when
 
         strip-prettyprint? [
             {
                 prettyprint.config:margin
-                prettyprint.config:string-limit
+                prettyprint.config:string-limit?
+                prettyprint.config:boa-tuples?
                 prettyprint.config:tab-size
             } %
         ] when
@@ -209,17 +285,32 @@ IN: tools.deploy.shaker
         global swap
         '[ drop , member? not ] assoc-filter
         [ drop string? not ] assoc-filter ! strip CLI args
+        sift-assoc
         dup keys unparse show
         21 setenv
     ] [ drop ] if ;
 
+: compress ( pred string -- )
+    "Compressing " prepend show
+    instances
+    dup H{ } clone [ [ ] cache ] curry map
+    become ; inline
+
+: compress-byte-arrays ( -- )
+    [ byte-array? ] "byte arrays" compress ;
+
+: compress-quotations ( -- )
+    [ quotation? ] "quotations" compress ;
+
+: compress-strings ( -- )
+    [ string? ] "strings" compress ;
+
 : finish-deploy ( final-image -- )
     "Finishing up" show
     >r { } set-datastack r>
     { } set-retainstack
     V{ } set-namestack
     V{ } set-catchstack
-    
     "Saving final image" show
     [ save-image-and-exit ] call-clear ;
 
@@ -241,9 +332,12 @@ SYMBOL: deploy-vocab
     strip-recompile-hook
     strip-init-hooks
     deploy-vocab get vocab-main set-boot-quot*
-    retained-props >r
+    stripped-word-props >r
     stripped-globals strip-globals
-    r> strip-words ;
+    r> strip-words
+    compress-byte-arrays
+    compress-quotations
+    compress-strings ;
 
 : (deploy) ( final-image vocab config -- )
     #! Does the actual work of a deployment in the slave
diff --git a/extra/tools/deploy/shaker/strip-cocoa.factor b/basis/tools/deploy/shaker/strip-cocoa.factor
similarity index 94%
rename from extra/tools/deploy/shaker/strip-cocoa.factor
rename to basis/tools/deploy/shaker/strip-cocoa.factor
index 0c77a52f94..de5aee68e2 100755
--- a/extra/tools/deploy/shaker/strip-cocoa.factor
+++ b/basis/tools/deploy/shaker/strip-cocoa.factor
@@ -21,6 +21,9 @@ global [
     sent-messages off
     super-sent-messages off
 
+    alien>objc-types off
+    objc>alien-types off
+
     ! We need this for strip-stack-traces to work fully
     { message-senders super-message-senders }
     [ get values compile ] each
diff --git a/extra/tools/deploy/shaker/strip-debugger.factor b/basis/tools/deploy/shaker/strip-debugger.factor
similarity index 61%
rename from extra/tools/deploy/shaker/strip-debugger.factor
rename to basis/tools/deploy/shaker/strip-debugger.factor
index 5caab02e69..2302b61715 100755
--- a/extra/tools/deploy/shaker/strip-debugger.factor
+++ b/basis/tools/deploy/shaker/strip-debugger.factor
@@ -1,8 +1,8 @@
 USING: kernel threads threads.private ;
 IN: debugger
 
-: print-error die ;
+: print-error ( error -- ) die drop ;
 
-: error. die ;
+: error. ( error -- ) die drop ;
 
 M: thread error-in-thread ( error thread -- ) die 2drop ;
diff --git a/basis/tools/deploy/shaker/strip-libc.factor b/basis/tools/deploy/shaker/strip-libc.factor
new file mode 100755
index 0000000000..9c2dc4e8ec
--- /dev/null
+++ b/basis/tools/deploy/shaker/strip-libc.factor
@@ -0,0 +1,10 @@
+USING: libc.private ;
+IN: libc
+
+: malloc ( size -- newalien ) (malloc) check-ptr ;
+
+: realloc ( alien size -- newalien ) (realloc) check-ptr ;
+
+: calloc ( size count -- newalien ) (calloc) check-ptr ;
+
+: free ( alien -- ) (free) ;
diff --git a/extra/tools/deploy/summary.txt b/basis/tools/deploy/summary.txt
similarity index 100%
rename from extra/tools/deploy/summary.txt
rename to basis/tools/deploy/summary.txt
diff --git a/extra/tools/deploy/macosx/tags.txt b/basis/tools/deploy/tags.txt
similarity index 100%
rename from extra/tools/deploy/macosx/tags.txt
rename to basis/tools/deploy/tags.txt
diff --git a/extra/tools/deploy/test/1/1.factor b/basis/tools/deploy/test/1/1.factor
similarity index 60%
rename from extra/tools/deploy/test/1/1.factor
rename to basis/tools/deploy/test/1/1.factor
index 0bf8b10d0c..0ca85bca8c 100755
--- a/extra/tools/deploy/test/1/1.factor
+++ b/basis/tools/deploy/test/1/1.factor
@@ -1,6 +1,6 @@
 IN: tools.deploy.test.1
 USING: threads ;
 
-: deploy-test-1 1000 sleep ;
+: deploy-test-1 ( -- ) 1000 sleep ;
 
 MAIN: deploy-test-1
diff --git a/extra/tools/deploy/test/1/deploy.factor b/basis/tools/deploy/test/1/deploy.factor
similarity index 100%
rename from extra/tools/deploy/test/1/deploy.factor
rename to basis/tools/deploy/test/1/deploy.factor
index 490c21a067..6846b3b53e 100755
--- a/extra/tools/deploy/test/1/deploy.factor
+++ b/basis/tools/deploy/test/1/deploy.factor
@@ -1,15 +1,15 @@
 USING: tools.deploy.config ;
 H{
-    { deploy-word-defs? f }
-    { deploy-random? f }
-    { deploy-name "tools.deploy.test.1" }
     { deploy-threads? t }
-    { deploy-compiler? t }
-    { deploy-math? t }
+    { deploy-random? f }
     { deploy-c-types? f }
-    { deploy-io 2 }
-    { deploy-reflection 1 }
     { deploy-ui? f }
-    { "stop-after-last-window?" t }
     { deploy-word-props? f }
+    { deploy-word-defs? f }
+    { deploy-math? t }
+    { deploy-io 2 }
+    { deploy-name "tools.deploy.test.1" }
+    { deploy-compiler? t }
+    { deploy-reflection 1 }
+    { "stop-after-last-window?" t }
 }
diff --git a/extra/tools/deploy/test/2/2.factor b/basis/tools/deploy/test/2/2.factor
similarity index 59%
rename from extra/tools/deploy/test/2/2.factor
rename to basis/tools/deploy/test/2/2.factor
index e029e3050a..afd83f510e 100755
--- a/extra/tools/deploy/test/2/2.factor
+++ b/basis/tools/deploy/test/2/2.factor
@@ -1,6 +1,6 @@
 IN: tools.deploy.test.2
 USING: calendar calendar.format ;
 
-: deploy-test-2 now (timestamp>string) ;
+: deploy-test-2 ( -- ) now (timestamp>string) ;
 
 MAIN: deploy-test-2
diff --git a/extra/tools/deploy/test/2/deploy.factor b/basis/tools/deploy/test/2/deploy.factor
similarity index 100%
rename from extra/tools/deploy/test/2/deploy.factor
rename to basis/tools/deploy/test/2/deploy.factor
index b8c37af20a..4c34a77b66 100755
--- a/extra/tools/deploy/test/2/deploy.factor
+++ b/basis/tools/deploy/test/2/deploy.factor
@@ -1,15 +1,15 @@
 USING: tools.deploy.config ;
 H{
-    { deploy-word-defs? f }
-    { deploy-random? f }
-    { deploy-name "tools.deploy.test.2" }
     { deploy-threads? t }
-    { deploy-compiler? t }
-    { deploy-math? t }
+    { deploy-random? f }
     { deploy-c-types? f }
-    { deploy-io 2 }
-    { deploy-reflection 1 }
     { deploy-ui? f }
-    { "stop-after-last-window?" t }
     { deploy-word-props? f }
+    { deploy-word-defs? f }
+    { deploy-math? t }
+    { deploy-io 2 }
+    { deploy-name "tools.deploy.test.2" }
+    { deploy-compiler? t }
+    { deploy-reflection 1 }
+    { "stop-after-last-window?" t }
 }
diff --git a/basis/tools/deploy/test/3/3.factor b/basis/tools/deploy/test/3/3.factor
new file mode 100755
index 0000000000..5919fa15db
--- /dev/null
+++ b/basis/tools/deploy/test/3/3.factor
@@ -0,0 +1,7 @@
+IN: tools.deploy.test.3
+USING: io.encodings.ascii io.encodings.string system kernel ;
+
+: deploy-test-3 ( -- )
+    "xyzthg" ascii encode drop ;
+
+MAIN: deploy-test-3
diff --git a/extra/tools/deploy/test/3/deploy.factor b/basis/tools/deploy/test/3/deploy.factor
similarity index 100%
rename from extra/tools/deploy/test/3/deploy.factor
rename to basis/tools/deploy/test/3/deploy.factor
index dde8291658..84347164b6 100755
--- a/extra/tools/deploy/test/3/deploy.factor
+++ b/basis/tools/deploy/test/3/deploy.factor
@@ -1,15 +1,15 @@
 USING: tools.deploy.config ;
 H{
-    { deploy-word-defs? f }
-    { deploy-random? f }
-    { deploy-name "tools.deploy.test.3" }
     { deploy-threads? t }
-    { deploy-compiler? t }
-    { deploy-math? t }
+    { deploy-random? f }
     { deploy-c-types? f }
-    { deploy-io 3 }
-    { deploy-reflection 1 }
     { deploy-ui? f }
-    { "stop-after-last-window?" t }
     { deploy-word-props? f }
+    { deploy-word-defs? f }
+    { deploy-math? t }
+    { deploy-io 3 }
+    { deploy-name "tools.deploy.test.3" }
+    { deploy-compiler? t }
+    { deploy-reflection 1 }
+    { "stop-after-last-window?" t }
 }
diff --git a/basis/tools/deploy/test/4/4.factor b/basis/tools/deploy/test/4/4.factor
new file mode 100644
index 0000000000..a9ee71131c
--- /dev/null
+++ b/basis/tools/deploy/test/4/4.factor
@@ -0,0 +1,7 @@
+IN: tools.deploy.test.4
+USING: io.encodings.8-bit io.encodings.string kernel ;
+
+: deploy-test-4 ( -- )
+    "xyzthg" \ latin7 encode drop ;
+
+MAIN: deploy-test-4
diff --git a/basis/tools/deploy/test/4/deploy.factor b/basis/tools/deploy/test/4/deploy.factor
new file mode 100644
index 0000000000..b1a6736bde
--- /dev/null
+++ b/basis/tools/deploy/test/4/deploy.factor
@@ -0,0 +1,15 @@
+USING: tools.deploy.config ;
+H{
+    { deploy-threads? t }
+    { deploy-random? f }
+    { deploy-c-types? f }
+    { deploy-ui? f }
+    { deploy-word-props? f }
+    { deploy-word-defs? f }
+    { deploy-math? t }
+    { deploy-io 2 }
+    { deploy-name "tools.deploy.test.4" }
+    { deploy-compiler? t }
+    { deploy-reflection 1 }
+    { "stop-after-last-window?" t }
+}
diff --git a/basis/tools/deploy/test/5/5.factor b/basis/tools/deploy/test/5/5.factor
new file mode 100644
index 0000000000..debc020d49
--- /dev/null
+++ b/basis/tools/deploy/test/5/5.factor
@@ -0,0 +1,7 @@
+IN: tools.deploy.test.5
+USING: http.client kernel ;
+
+: deploy-test-5 ( -- )
+    "http://localhost:1237/foo.html" http-get 2drop ;
+
+MAIN: deploy-test-5
diff --git a/basis/tools/deploy/test/5/deploy.factor b/basis/tools/deploy/test/5/deploy.factor
new file mode 100644
index 0000000000..f5f8bc0352
--- /dev/null
+++ b/basis/tools/deploy/test/5/deploy.factor
@@ -0,0 +1,15 @@
+USING: tools.deploy.config ;
+H{
+    { deploy-threads? t }
+    { deploy-random? f }
+    { deploy-c-types? f }
+    { deploy-ui? f }
+    { deploy-word-props? f }
+    { deploy-word-defs? f }
+    { deploy-math? t }
+    { deploy-io 3 }
+    { deploy-name "tools.deploy.test.5" }
+    { deploy-compiler? t }
+    { deploy-reflection 1 }
+    { "stop-after-last-window?" t }
+}
diff --git a/extra/tools/deploy/unix/authors.txt b/basis/tools/deploy/unix/authors.txt
similarity index 100%
rename from extra/tools/deploy/unix/authors.txt
rename to basis/tools/deploy/unix/authors.txt
diff --git a/extra/tools/deploy/unix/summary.txt b/basis/tools/deploy/unix/summary.txt
similarity index 100%
rename from extra/tools/deploy/unix/summary.txt
rename to basis/tools/deploy/unix/summary.txt
diff --git a/basis/tools/deploy/unix/tags.txt b/basis/tools/deploy/unix/tags.txt
new file mode 100644
index 0000000000..660d511420
--- /dev/null
+++ b/basis/tools/deploy/unix/tags.txt
@@ -0,0 +1,2 @@
+unportable
+tools
diff --git a/extra/tools/deploy/unix/unix.factor b/basis/tools/deploy/unix/unix.factor
similarity index 100%
rename from extra/tools/deploy/unix/unix.factor
rename to basis/tools/deploy/unix/unix.factor
diff --git a/extra/tools/deploy/backend/authors.txt b/basis/tools/deploy/windows/authors.txt
similarity index 100%
rename from extra/tools/deploy/backend/authors.txt
rename to basis/tools/deploy/windows/authors.txt
diff --git a/extra/tools/deploy/windows/summary.txt b/basis/tools/deploy/windows/summary.txt
similarity index 100%
rename from extra/tools/deploy/windows/summary.txt
rename to basis/tools/deploy/windows/summary.txt
diff --git a/extra/tools/deploy/windows/tags.txt b/basis/tools/deploy/windows/tags.txt
similarity index 56%
rename from extra/tools/deploy/windows/tags.txt
rename to basis/tools/deploy/windows/tags.txt
index 6eee6b9766..b58a515ed8 100644
--- a/extra/tools/deploy/windows/tags.txt
+++ b/basis/tools/deploy/windows/tags.txt
@@ -1,2 +1,3 @@
+unportable
 windows
 tools
diff --git a/extra/tools/deploy/windows/windows-tests.factor b/basis/tools/deploy/windows/windows-tests.factor
similarity index 100%
rename from extra/tools/deploy/windows/windows-tests.factor
rename to basis/tools/deploy/windows/windows-tests.factor
diff --git a/extra/tools/deploy/windows/windows.factor b/basis/tools/deploy/windows/windows.factor
similarity index 100%
rename from extra/tools/deploy/windows/windows.factor
rename to basis/tools/deploy/windows/windows.factor
diff --git a/extra/tools/disassembler/authors.txt b/basis/tools/disassembler/authors.txt
similarity index 100%
rename from extra/tools/disassembler/authors.txt
rename to basis/tools/disassembler/authors.txt
diff --git a/extra/tools/disassembler/disassembler-docs.factor b/basis/tools/disassembler/disassembler-docs.factor
similarity index 100%
rename from extra/tools/disassembler/disassembler-docs.factor
rename to basis/tools/disassembler/disassembler-docs.factor
diff --git a/extra/tools/disassembler/disassembler-tests.factor b/basis/tools/disassembler/disassembler-tests.factor
similarity index 100%
rename from extra/tools/disassembler/disassembler-tests.factor
rename to basis/tools/disassembler/disassembler-tests.factor
diff --git a/extra/tools/disassembler/disassembler.factor b/basis/tools/disassembler/disassembler.factor
similarity index 83%
rename from extra/tools/disassembler/disassembler.factor
rename to basis/tools/disassembler/disassembler.factor
index 39ee85b07a..887fd1b6d7 100755
--- a/extra/tools/disassembler/disassembler.factor
+++ b/basis/tools/disassembler/disassembler.factor
@@ -2,13 +2,13 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: io.files io words alien kernel math.parser alien.syntax
 io.launcher system assocs arrays sequences namespaces qualified
-system math generator.fixup io.encodings.ascii accessors
-generic ;
+system math compiler.generator.fixup io.encodings.ascii
+accessors generic tr ;
 IN: tools.disassembler
 
-: in-file "gdb-in.txt" temp-file ;
+: in-file ( -- path ) "gdb-in.txt" temp-file ;
 
-: out-file "gdb-out.txt" temp-file ;
+: out-file ( -- path ) "gdb-out.txt" temp-file ;
 
 GENERIC: make-disassemble-cmd ( obj -- )
 
@@ -36,8 +36,7 @@ M: method-spec make-disassemble-cmd
     try-process
     out-file ascii file-lines ;
 
-: tabs>spaces ( str -- str' )
-    { { CHAR: \t CHAR: \s } } substitute ;
+TR: tabs>spaces "\t" "\s" ;
 
 : disassemble ( obj -- )
     make-disassemble-cmd run-gdb
diff --git a/extra/tools/disassembler/summary.txt b/basis/tools/disassembler/summary.txt
similarity index 100%
rename from extra/tools/disassembler/summary.txt
rename to basis/tools/disassembler/summary.txt
diff --git a/extra/tools/deploy/config/authors.txt b/basis/tools/memory/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/tools/deploy/config/authors.txt
rename to basis/tools/memory/authors.txt
diff --git a/extra/tools/memory/memory-docs.factor b/basis/tools/memory/memory-docs.factor
similarity index 100%
rename from extra/tools/memory/memory-docs.factor
rename to basis/tools/memory/memory-docs.factor
diff --git a/extra/tools/memory/memory-tests.factor b/basis/tools/memory/memory-tests.factor
similarity index 100%
rename from extra/tools/memory/memory-tests.factor
rename to basis/tools/memory/memory-tests.factor
diff --git a/extra/tools/memory/memory.factor b/basis/tools/memory/memory.factor
old mode 100644
new mode 100755
similarity index 94%
rename from extra/tools/memory/memory.factor
rename to basis/tools/memory/memory.factor
index 9628b218e9..f61694da78
--- a/extra/tools/memory/memory.factor
+++ b/basis/tools/memory/memory.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences vectors arrays generic assocs io math
 namespaces parser prettyprint strings io.styles vectors words
-system sorting splitting math.parser classes memory combinators ;
+system sorting splitting grouping math.parser classes memory
+combinators ;
 IN: tools.memory
 
 <PRIVATE
@@ -32,10 +33,10 @@ IN: tools.memory
     [ [ write-cell ] each ] with-row ;
 
 : (data-room.) ( -- )
-    data-room 2 <groups> dup length [
+    data-room 2 <groups> [
         [ first2 ] [ number>string "Generation " prepend ] bi*
         write-total/used/free
-    ] 2each
+    ] each-index
     "Decks" write-total
     "Cards" write-total ;
 
diff --git a/extra/tools/memory/summary.txt b/basis/tools/memory/summary.txt
similarity index 100%
rename from extra/tools/memory/summary.txt
rename to basis/tools/memory/summary.txt
diff --git a/extra/tools/deploy/tags.txt b/basis/tools/memory/tags.txt
similarity index 100%
rename from extra/tools/deploy/tags.txt
rename to basis/tools/memory/tags.txt
diff --git a/extra/tools/deploy/macosx/authors.txt b/basis/tools/profiler/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/tools/deploy/macosx/authors.txt
rename to basis/tools/profiler/authors.txt
diff --git a/extra/tools/profiler/profiler-docs.factor b/basis/tools/profiler/profiler-docs.factor
similarity index 83%
rename from extra/tools/profiler/profiler-docs.factor
rename to basis/tools/profiler/profiler-docs.factor
index 50bbc527d1..69edf1a7e0 100755
--- a/extra/tools/profiler/profiler-docs.factor
+++ b/basis/tools/profiler/profiler-docs.factor
@@ -44,7 +44,7 @@ HELP: vocab-profile.
 HELP: usage-profile.
 { $values { "word" word } }
 { $description "Prints a table of call counts from the most recent invocation of " { $link profile } ", for words which directly call " { $snippet "word" } " only." }
-{ $notes "This word obtains the list of static usages with the " { $link usage } " word, and is not aware of dynamic call history. Consider the following scenario. A word " { $snippet "X" } " can execute word " { $snippet "Y" } " in a conditional branch, and " { $snippet "X" } " is executed many times during the profiling run, but this particular branch executing " { $snippet "Y" } " is never taken. However, some other word does execute " { $snippet "Y" } " multiple times. Then " { $snippet "\\ Y usage-profile." } " will list a number of calls to " { $snippet "X" } ", even though " { $snippet "Y" } " was never executed " { $emphasis "from" } " " { $snippet "X" } "." }
+{ $notes "This word obtains the list of static usages with the " { $link smart-usage } " word, and is not aware of dynamic call history. Consider the following scenario. A word " { $snippet "X" } " can execute word " { $snippet "Y" } " in a conditional branch, and " { $snippet "X" } " is executed many times during the profiling run, but this particular branch executing " { $snippet "Y" } " is never taken. However, some other word does execute " { $snippet "Y" } " multiple times. Then " { $snippet "\\ Y usage-profile." } " will list a number of calls to " { $snippet "X" } ", even though " { $snippet "Y" } " was never executed " { $emphasis "from" } " " { $snippet "X" } "." }
 { $examples { $code "\\ + usage-profile." } } ;
 
 HELP: vocabs-profile.
diff --git a/basis/tools/profiler/profiler-tests.factor b/basis/tools/profiler/profiler-tests.factor
new file mode 100755
index 0000000000..75ca5ede8c
--- /dev/null
+++ b/basis/tools/profiler/profiler-tests.factor
@@ -0,0 +1,56 @@
+IN: tools.profiler.tests
+USING: accessors tools.profiler tools.test kernel memory math
+threads alien tools.profiler.private sequences compiler.units ;
+
+[ t ] [
+    \ length counter>>
+    10 [ { } length drop ] times
+    \ length counter>> =
+] unit-test
+
+[ ] [ [ 10 [ gc ] times ] profile ] unit-test
+
+[ ] [ [ 1000 sleep ] profile ] unit-test 
+
+[ ] [ profile. ] unit-test
+
+[ ] [ vocabs-profile. ] unit-test
+
+[ ] [ "kernel.private" vocab-profile. ] unit-test
+
+[ ] [ \ + usage-profile. ] unit-test
+
+: callback-test ( -- callback ) "void" { } "cdecl" [ ] alien-callback ;
+
+: indirect-test ( callback -- ) "void" { } "cdecl" alien-indirect ;
+
+: foobar ;
+
+[
+    [ ] [ callback-test indirect-test ] unit-test
+    foobar
+] profile
+
+[ 1 ] [ \ foobar counter>> ] unit-test
+
+: fooblah { } [ ] each ;
+
+: foobaz fooblah fooblah ;
+
+[ foobaz ] profile
+
+[ 1 ] [ \ foobaz counter>> ] unit-test
+
+[ 2 ] [ \ fooblah counter>> ] unit-test
+
+: recompile-while-profiling-test ( -- ) ;
+
+[ ] [
+    [
+        333 [ recompile-while-profiling-test ] times
+        { recompile-while-profiling-test } compile
+        333 [ recompile-while-profiling-test ] times
+    ] profile
+] unit-test
+
+[ 666 ] [ \ recompile-while-profiling-test counter>> ] unit-test
diff --git a/extra/tools/profiler/profiler.factor b/basis/tools/profiler/profiler.factor
similarity index 87%
rename from extra/tools/profiler/profiler.factor
rename to basis/tools/profiler/profiler.factor
index 6a5fce6281..b7f7ae97a6 100755
--- a/extra/tools/profiler/profiler.factor
+++ b/basis/tools/profiler/profiler.factor
@@ -1,6 +1,6 @@
-! Copyright (C) 2007 Slava Pestov.
+! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: words sequences math prettyprint kernel arrays io
+USING: accessors words sequences math prettyprint kernel arrays io
 io.styles namespaces assocs kernel.private strings combinators
 sorting math.parser vocabs definitions tools.profiler.private
 continuations generic ;
@@ -10,7 +10,7 @@ IN: tools.profiler
     [ t profiling call ] [ f profiling ] [ ] cleanup ;
 
 : counters ( words -- assoc )
-    [ dup profile-counter ] { } map>assoc ;
+    [ dup counter>> ] { } map>assoc ;
 
 GENERIC: (profile.) ( obj -- )
 
@@ -58,14 +58,14 @@ M: method-body (profile.)
     "Call counts for words which call " write
     dup pprint
     ":" print
-    usage [ word? ] filter counters counters. ;
+    smart-usage [ word? ] filter counters counters. ;
 
 : vocabs-profile. ( -- )
     "Call counts for all vocabularies:" print
     vocabs [
         dup words
         [ "predicating" word-prop not ] filter
-        [ profile-counter ] map sum
+        [ counter>> ] map sum
     ] { } map>assoc counters. ;
 
 : method-profile. ( -- )
diff --git a/extra/tools/profiler/summary.txt b/basis/tools/profiler/summary.txt
similarity index 100%
rename from extra/tools/profiler/summary.txt
rename to basis/tools/profiler/summary.txt
diff --git a/extra/tools/deploy/unix/tags.txt b/basis/tools/profiler/tags.txt
similarity index 100%
rename from extra/tools/deploy/unix/tags.txt
rename to basis/tools/profiler/tags.txt
diff --git a/basis/tools/scaffold/authors.txt b/basis/tools/scaffold/authors.txt
new file mode 100644
index 0000000000..b4bd0e7b35
--- /dev/null
+++ b/basis/tools/scaffold/authors.txt
@@ -0,0 +1 @@
+Doug Coleman
\ No newline at end of file
diff --git a/basis/tools/scaffold/scaffold-docs.factor b/basis/tools/scaffold/scaffold-docs.factor
new file mode 100644
index 0000000000..e22e10f8c9
--- /dev/null
+++ b/basis/tools/scaffold/scaffold-docs.factor
@@ -0,0 +1,47 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: help.markup help.syntax kernel strings words ;
+IN: tools.scaffold
+
+HELP: developer-name
+{ $description "Set this symbol to hold your name so that the scaffold tools can generate the correct file header for copyright. Setting this variable in your .factor-boot-rc file is recommended." }
+{ $unchecked-example "USING: namespaces tools.scaffold ;\n\"Stacky Guy\" developer-name set-global" } ;
+
+HELP: help.
+{ $values
+     { "word" word } }
+{ $description "Prints out scaffold help markup for a given word." } ;
+
+HELP: scaffold-help
+{ $values
+     { "vocab-root" "a vocabulary root string" } { "string" string } }
+{ $description "Takes an existing vocabulary and creates a help file with scaffolded help for each word. This word only works if no help file yet exists." } ;
+
+HELP: scaffold-undocumented
+{ $values
+     { "string" string } }
+{ $description "Prints scaffolding documenation for undocumented words in a vocabuary except for automatically generated class predicates." } ;
+
+{ scaffold-help scaffold-undocumented } related-words
+
+HELP: scaffold-vocab
+{ $values
+     { "vocab-root" "a vocabulary root string" } { "string" string } }
+{ $description "Creates a direcory in the given root for a new vocabulary and adds a main .factor file, a tests file, and an authors.txt file." } ;
+
+HELP: using
+{ $description "Stores the vocabularies that are pulled into the documentation file from looking up the stack effect types." } ;
+
+ARTICLE: "tools.scaffold" "Scaffold tool"
+"Scaffold setup:"
+{ $subsection developer-name }
+"Generate new vocabs:"
+{ $subsection scaffold-vocab }
+"Generate help scaffolding:"
+{ $subsection scaffold-help }
+{ $subsection scaffold-undocumented }
+{ $subsection help. }
+"Types that are unrecognized by the scaffold generator will be of type " { $link null } ". The developer should change these to strings that describe the stack effect names instead."
+;
+
+ABOUT: "tools.scaffold"
diff --git a/basis/tools/scaffold/scaffold.factor b/basis/tools/scaffold/scaffold.factor
new file mode 100644
index 0000000000..12f9a55795
--- /dev/null
+++ b/basis/tools/scaffold/scaffold.factor
@@ -0,0 +1,262 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs io.files hashtables kernel namespaces sequences
+vocabs.loader io combinators io.encodings.utf8 calendar accessors
+math.parser io.streams.string ui.tools.operations quotations
+strings arrays prettyprint words vocabs sorting sets
+classes math alien ;
+IN: tools.scaffold
+
+SYMBOL: developer-name
+SYMBOL: using
+
+ERROR: not-a-vocab-root string ;
+ERROR: vocab-name-contains-separator path ;
+ERROR: vocab-name-contains-dot path ;
+ERROR: no-vocab vocab ;
+
+<PRIVATE
+: root? ( string -- ? )
+    vocab-roots get member?  ;
+
+: check-vocab-name ( string -- string )
+    dup dup [ CHAR: . = ] trim [ length ] bi@ =
+    [ vocab-name-contains-dot ] unless
+    ".." over subseq? [ vocab-name-contains-dot ] when
+    dup [ path-separator? ] contains?
+    [ vocab-name-contains-separator ] when ;
+
+: check-root ( string -- string )
+    check-vocab-name
+    dup "resource:" head? [ "resource:" prepend ] unless
+    dup root? [ not-a-vocab-root ] unless ;
+
+: directory-exists ( path -- )
+    "Not creating a directory, it already exists: " write print ;
+
+: scaffold-directory ( path -- )
+    dup exists? [ directory-exists ] [ make-directories ] if ;
+
+: not-scaffolding ( path -- )
+    "Not creating scaffolding for " write <pathname> . ;
+
+: scaffolding ( path -- )
+    "Creating scaffolding for " write <pathname> . ;
+
+: scaffold-path ( path string -- path ? )
+    dupd [ file-name ] dip append append-path
+    dup exists? [ dup not-scaffolding f ] [ dup scaffolding t ] if ;
+
+: scaffold-copyright ( -- )
+    "! Copyright (C) " write now year>> number>string write
+    developer-name get [ "Your name" ] unless* bl write "." print
+    "! See http://factorcode.org/license.txt for BSD license." print ;
+
+: main-file-string ( vocab -- string )
+    [
+        scaffold-copyright
+        "USING: ;" print
+        "IN: " write print
+    ] with-string-writer ;
+
+: set-scaffold-main-file ( path vocab -- )
+    main-file-string swap utf8 set-file-contents ;
+
+: scaffold-main ( path vocab -- )
+    [ ".factor" scaffold-path ] dip
+    swap [ set-scaffold-main-file ] [ 2drop ] if ;
+
+: tests-file-string ( vocab -- string )
+    [
+        scaffold-copyright
+        "USING: tools.test " write dup write " ;" print
+        "IN: " write write ".tests" print
+    ] with-string-writer ;
+
+: set-scaffold-tests-file ( path vocab -- )
+    tests-file-string swap utf8 set-file-contents ;
+
+: scaffold-tests ( path vocab -- )
+    [ "-tests.factor" scaffold-path ] dip
+    swap [ set-scaffold-tests-file ] [ 2drop ] if ;
+
+: scaffold-authors ( path -- )
+    "authors.txt" append-path dup exists? [
+        not-scaffolding
+    ] [
+        dup scaffolding
+        developer-name get swap utf8 set-file-contents
+    ] if ;
+
+: lookup-type ( string -- object/string ? )
+    H{
+        { "object" object } { "obj" object }
+        { "obj1" object } { "obj2" object }
+        { "obj3" object } { "obj4" object }
+        { "quot" quotation } { "quot1" quotation }
+        { "quot2" quotation } { "quot3" quotation }
+        { "quot'" quotation }
+        { "string" string } { "string1" string }
+        { "string2" string } { "string3" string }
+        { "str" string }
+        { "str1" string } { "str2" string } { "str3" string }
+        { "hash" hashtable }
+        { "hashtable" hashtable }
+        { "?" "a boolean" }
+        { "ch" "a character" }
+        { "word" word }
+        { "array" array }
+        { "duration" duration }
+        { "path" "a pathname string" }
+        { "vocab" "a vocabulary specifier" }
+        { "vocab-root" "a vocabulary root string" }
+        { "c-ptr" c-ptr }
+        { "seq" sequence } { "seq1" sequence } { "seq2" sequence }
+        { "seq3" sequence } { "seq4" sequence }
+        { "seq1'" sequence } { "seq2'" sequence }
+        { "newseq" sequence } 
+        { "assoc" assoc } { "assoc1" assoc } { "assoc2" assoc }
+        { "assoc3" assoc } { "newassoc" assoc }
+        { "alist" "an array of key/value pairs" }
+        { "keys" sequence } { "values" sequence }
+        { "class" class } { "tuple" tuple }
+    } at* ;
+
+: add-using ( object -- )
+    vocabulary>> using get [ conjoin ] [ drop ] if* ;
+
+: ($values.) ( array -- )
+    [
+        " { " write
+        dup array? [ first ] when
+        dup lookup-type [
+            [ unparse write bl ]
+            [ [ pprint ] [ dup string? [ drop ] [ add-using ] if ] bi ] bi*
+        ] [
+            drop unparse write bl null pprint
+            null add-using
+        ] if
+        " }" write
+    ] each ;
+
+: $values. ( word -- )
+    "declared-effect" word-prop [
+        [ in>> ] [ out>> ] bi
+        2dup [ empty? ] bi@ and [
+            2drop
+        ] [
+            "{ $values" print
+            [ "    " write ($values.) ]
+            [ [ nl "    " write ($values.) ] unless-empty ] bi*
+            " }" write nl
+        ] if
+    ] when* ;
+
+: $description. ( word -- )
+    drop
+    "{ $description \"\" } ;" print ;
+
+: help-header. ( word -- )
+    "HELP: " write name>> print ;
+
+: (help.) ( word -- )
+    [ help-header. ] [ $values. ] [ $description. ] tri ;
+
+: interesting-words ( vocab -- array )
+    words
+    [ [ "help" word-prop ] [ predicate? ] bi or not ] filter
+    natural-sort ;
+
+: interesting-words. ( vocab -- )
+    interesting-words [ (help.) nl ] each ;
+
+: help-file-string ( str1 -- str2 )
+    [
+        {
+            [ "IN: " write print nl ]
+            [ interesting-words. ]
+            [
+                [ "ARTICLE: " write unparse dup write bl print ]
+                [ "{ $vocab-link " write pprint " }" print ] bi
+                ";" print nl
+            ]
+            [ "ABOUT: " write unparse print ]
+        } cleave
+    ] with-string-writer ;
+
+: write-using ( -- )
+    "USING:" write
+    using get keys
+    { "help.markup" "help.syntax" } append natural-sort 
+    [ bl write ] each
+    " ;" print ;
+
+: set-scaffold-help-file ( path vocab -- )
+    swap utf8 <file-writer> [
+        scaffold-copyright help-file-string write-using write
+    ] with-output-stream ;
+
+: check-scaffold ( vocab-root string -- vocab-root string )
+    [ check-root ] [ check-vocab-name ] bi* ;
+
+: vocab>scaffold-path ( vocab-root string -- path )
+    path-separator first CHAR: . associate substitute
+    append-path ;
+
+: prepare-scaffold ( vocab-root string -- string path )
+    check-scaffold [ vocab>scaffold-path ] keep ;
+
+: with-scaffold ( quot -- )
+    [ H{ } clone using ] dip with-variable ; inline
+
+: check-vocab ( vocab -- vocab )
+    dup find-vocab-root [ no-vocab ] unless ;
+PRIVATE>
+
+: link-vocab ( vocab -- )
+    check-vocab
+    "Edit documentation: " write
+    [ find-vocab-root ] keep
+    [ append-path ] keep "-docs.factor" append append-path
+    <pathname> . ;
+
+: help. ( word -- )
+    [ (help.) ] [ nl vocabulary>> link-vocab ] bi ;
+
+: scaffold-help ( vocab-root string -- )
+    [
+        check-vocab
+        prepare-scaffold
+        [ "-docs.factor" scaffold-path ] dip
+        swap [ set-scaffold-help-file ] [ 2drop ] if
+    ] with-scaffold ;
+
+: scaffold-undocumented ( string -- )
+    [ interesting-words. ] [ link-vocab ] bi ;
+
+: scaffold-vocab ( vocab-root string -- )
+    prepare-scaffold
+    {
+        [ drop scaffold-directory ]
+        [ scaffold-main ]
+        [ scaffold-tests ]
+        [ drop scaffold-authors ]
+        [ nip require ]
+    } 2cleave ;
+
+SYMBOL: examples-flag
+
+: example ( -- )
+    {
+        "{ $example \"\" \"USING: prettyprint ;\""
+        "           \"\""
+        "           \"\""
+        "}"
+    } [ examples-flag get [ "    " write ] when print ] each ;
+
+: examples ( n -- )
+    t \ examples-flag [
+        "{ $examples " print
+        [ example ] times
+        "}" print
+    ] with-variable ;
diff --git a/extra/tools/summary.txt b/basis/tools/summary.txt
similarity index 100%
rename from extra/tools/summary.txt
rename to basis/tools/summary.txt
diff --git a/extra/tools/deploy/shaker/authors.txt b/basis/tools/test/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/tools/deploy/shaker/authors.txt
rename to basis/tools/test/authors.txt
diff --git a/extra/tools/test/summary.txt b/basis/tools/test/summary.txt
similarity index 100%
rename from extra/tools/test/summary.txt
rename to basis/tools/test/summary.txt
diff --git a/extra/tools/memory/tags.txt b/basis/tools/test/tags.txt
similarity index 100%
rename from extra/tools/memory/tags.txt
rename to basis/tools/test/tags.txt
diff --git a/extra/tools/test/test-docs.factor b/basis/tools/test/test-docs.factor
similarity index 100%
rename from extra/tools/test/test-docs.factor
rename to basis/tools/test/test-docs.factor
diff --git a/extra/tools/test/test.factor b/basis/tools/test/test.factor
similarity index 83%
rename from extra/tools/test/test.factor
rename to basis/tools/test/test.factor
index 8ef80c6add..d3304bbdb1 100755
--- a/extra/tools/test/test.factor
+++ b/basis/tools/test/test.factor
@@ -1,10 +1,9 @@
 ! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces arrays prettyprint sequences kernel
-vectors quotations words parser assocs combinators
-continuations debugger io io.files vocabs
-vocabs.loader source-files compiler.units inspector
-inference effects tools.vocabs ;
+USING: accessors namespaces arrays prettyprint sequences kernel
+vectors quotations words parser assocs combinators continuations
+debugger io io.styles io.files vocabs vocabs.loader source-files
+compiler.units summary stack-checker effects tools.vocabs ;
 IN: tools.test
 
 SYMBOL: failures
@@ -31,7 +30,7 @@ SYMBOL: this-test
     ] 2curry (unit-test) ;
 
 : short-effect ( effect -- pair )
-    dup effect-in length swap effect-out length 2array ;
+    [ in>> length ] [ out>> length ] bi 2array ;
 
 : must-infer-as ( effect quot -- )
     >r 1quotation r> [ infer short-effect ] curry unit-test ;
@@ -68,8 +67,7 @@ SYMBOL: this-test
 : test-failures. ( assoc -- )
     [
         nl
-        dup empty? [
-            drop
+        [
             "==== ALL TESTS PASSED" print
         ] [
             "==== FAILING TESTS:" print
@@ -77,16 +75,16 @@ SYMBOL: this-test
                 swap vocab-heading.
                 [ failure. nl ] each
             ] assoc-each
-        ] if
+        ] if-empty
     ] [
         "==== NOTHING TO TEST" print
     ] if* ;
 
 : run-tests ( prefix -- failures )
-    child-vocabs dup empty? [ drop f ] [
+    child-vocabs [ f ] [
         [ dup run-test ] { } map>assoc
         [ second empty? not ] filter
-    ] if ;
+    ] if-empty ;
 
 : test ( prefix -- )
     run-tests test-failures. ;
diff --git a/extra/tools/test/tools.factor b/basis/tools/test/tools.factor
similarity index 100%
rename from extra/tools/test/tools.factor
rename to basis/tools/test/tools.factor
diff --git a/extra/tools/deploy/windows/authors.txt b/basis/tools/test/ui/authors.txt
similarity index 100%
rename from extra/tools/deploy/windows/authors.txt
rename to basis/tools/test/ui/authors.txt
diff --git a/extra/tools/test/ui/ui.factor b/basis/tools/test/ui/ui.factor
similarity index 100%
rename from extra/tools/test/ui/ui.factor
rename to basis/tools/test/ui/ui.factor
diff --git a/extra/tools/threads/threads-docs.factor b/basis/tools/threads/threads-docs.factor
similarity index 100%
rename from extra/tools/threads/threads-docs.factor
rename to basis/tools/threads/threads-docs.factor
diff --git a/extra/tools/threads/threads.factor b/basis/tools/threads/threads.factor
similarity index 71%
rename from extra/tools/threads/threads.factor
rename to basis/tools/threads/threads.factor
index 2bd38cf304..1b75e46e25 100755
--- a/extra/tools/threads/threads.factor
+++ b/basis/tools/threads/threads.factor
@@ -2,19 +2,19 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: threads kernel prettyprint prettyprint.config
 io io.styles sequences assocs namespaces sorting boxes
-heaps.private system math math.parser math.order ;
+heaps.private system math math.parser math.order accessors ;
 IN: tools.threads
 
 : thread. ( thread -- )
-    dup thread-id pprint-cell
-    dup thread-name over [ write-object ] with-cell
-    dup thread-state [
+    dup id>> pprint-cell
+    dup name>> over [ write-object ] with-cell
+    dup state>> [
         [ dup self eq? "running" "yield" ? ] unless*
         write
     ] with-cell
     [
-        thread-sleep-entry [
-            entry-key millis [-] number>string write
+        sleep-entry>> [
+            key>> millis [-] number>string write
             " ms" write
         ] when*
     ] with-cell ;
diff --git a/extra/tools/memory/authors.txt b/basis/tools/time/authors.txt
similarity index 100%
rename from extra/tools/memory/authors.txt
rename to basis/tools/time/authors.txt
diff --git a/extra/tools/time/summary.txt b/basis/tools/time/summary.txt
similarity index 100%
rename from extra/tools/time/summary.txt
rename to basis/tools/time/summary.txt
diff --git a/extra/tools/profiler/tags.txt b/basis/tools/time/tags.txt
similarity index 100%
rename from extra/tools/profiler/tags.txt
rename to basis/tools/time/tags.txt
diff --git a/extra/tools/time/time-docs.factor b/basis/tools/time/time-docs.factor
similarity index 100%
rename from extra/tools/time/time-docs.factor
rename to basis/tools/time/time-docs.factor
diff --git a/extra/tools/time/time.factor b/basis/tools/time/time.factor
similarity index 95%
rename from extra/tools/time/time.factor
rename to basis/tools/time/time.factor
index 82d3491743..3078f40e1a 100644
--- a/extra/tools/time/time.factor
+++ b/basis/tools/time/time.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math math.vectors memory io io.styles prettyprint
-namespaces system sequences splitting assocs strings ;
+namespaces system sequences splitting grouping assocs strings ;
 IN: tools.time
 
 : benchmark ( quot -- runtime )
diff --git a/extra/tools/profiler/authors.txt b/basis/tools/vocabs/browser/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/tools/profiler/authors.txt
rename to basis/tools/vocabs/browser/authors.txt
diff --git a/extra/tools/vocabs/browser/browser-docs.factor b/basis/tools/vocabs/browser/browser-docs.factor
similarity index 100%
rename from extra/tools/vocabs/browser/browser-docs.factor
rename to basis/tools/vocabs/browser/browser-docs.factor
diff --git a/extra/tools/vocabs/browser/browser-tests.factor b/basis/tools/vocabs/browser/browser-tests.factor
similarity index 100%
rename from extra/tools/vocabs/browser/browser-tests.factor
rename to basis/tools/vocabs/browser/browser-tests.factor
diff --git a/extra/tools/vocabs/browser/browser.factor b/basis/tools/vocabs/browser/browser.factor
similarity index 81%
rename from extra/tools/vocabs/browser/browser.factor
rename to basis/tools/vocabs/browser/browser.factor
index 86035ae1a4..c3296df280 100755
--- a/extra/tools/vocabs/browser/browser.factor
+++ b/basis/tools/vocabs/browser/browser.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel combinators vocabs vocabs.loader tools.vocabs io
-io.files io.styles help.markup help.stylesheet sequences assocs
-help.topics namespaces prettyprint words sorting definitions
-arrays inspector ;
+USING: accessors kernel combinators vocabs vocabs.loader
+tools.vocabs io io.files io.styles help.markup help.stylesheet
+sequences assocs help.topics namespaces prettyprint words
+sorting definitions arrays summary sets generic ;
 IN: tools.vocabs.browser
 
 : vocab-status-string ( vocab -- string )
@@ -36,14 +36,14 @@ IN: tools.vocabs.browser
 
 : vocabs. ( assoc -- )
     [
-        dup empty? [
-            2drop
+        [
+            drop
         ] [
             swap root-heading.
             standard-table-style [
                 vocab-headings. [ vocab. ] each
             ] ($grid)
-        ] if
+        ] if-empty
     ] assoc-each ;
 
 : describe-summary ( vocab -- )
@@ -98,31 +98,31 @@ C: <vocab-author> vocab-author
     ] when* ;
 
 : describe-words ( vocab -- )
-    words dup empty? [
+    words [
         "Words" $heading
-        dup natural-sort $links
-    ] unless drop ;
+        natural-sort $links
+    ] unless-empty ;
 
 : vocab-xref ( vocab quot -- vocabs )
-    >r dup vocab-name swap words r> map
-    [ [ word? ] filter [ word-vocabulary ] map ] map>set
-    remove sift [ vocab ] map ; inline
+    >r dup vocab-name swap words [ generic? not ] filter r> map
+    [ [ word? ] filter [ vocabulary>> ] map ] gather natural-sort
+    remove sift ; inline
 
 : vocab-uses ( vocab -- vocabs ) [ uses ] vocab-xref ;
 
 : vocab-usage ( vocab -- vocabs ) [ usage ] vocab-xref ;
 
 : describe-uses ( vocab -- )
-    vocab-uses dup empty? [
+    vocab-uses [
         "Uses" $heading
-        dup $links
-    ] unless drop ;
+        $vocab-links
+    ] unless-empty ;
 
 : describe-usage ( vocab -- )
-    vocab-usage dup empty? [
+    vocab-usage [
         "Used by" $heading
-        dup $links
-    ] unless drop ;
+        $vocab-links
+    ] unless-empty ;
 
 : $describe-vocab ( element -- )
     first
@@ -181,12 +181,12 @@ M: vocab-spec article-parent drop "vocab-index" ;
 M: vocab-tag >link ;
 
 M: vocab-tag article-title
-    vocab-tag-name "Vocabularies tagged ``" swap "''" 3append ;
+    name>> "Vocabularies tagged ``" swap "''" 3append ;
 
-M: vocab-tag article-name vocab-tag-name ;
+M: vocab-tag article-name name>> ;
 
 M: vocab-tag article-content
-    \ $tagged-vocabs swap vocab-tag-name 2array ;
+    \ $tagged-vocabs swap name>> 2array ;
 
 M: vocab-tag article-parent drop "vocab-index" ;
 
@@ -195,12 +195,12 @@ M: vocab-tag summary article-title ;
 M: vocab-author >link ;
 
 M: vocab-author article-title
-    vocab-author-name "Vocabularies by " prepend ;
+    name>> "Vocabularies by " prepend ;
 
-M: vocab-author article-name vocab-author-name ;
+M: vocab-author article-name name>> ;
 
 M: vocab-author article-content
-    \ $authored-vocabs swap vocab-author-name 2array ;
+    \ $authored-vocabs swap name>> 2array ;
 
 M: vocab-author article-parent drop "vocab-index" ;
 
diff --git a/extra/tools/test/tags.txt b/basis/tools/vocabs/browser/tags.txt
similarity index 100%
rename from extra/tools/test/tags.txt
rename to basis/tools/vocabs/browser/tags.txt
diff --git a/extra/tools/test/authors.txt b/basis/tools/vocabs/monitor/authors.txt
similarity index 100%
rename from extra/tools/test/authors.txt
rename to basis/tools/vocabs/monitor/authors.txt
diff --git a/extra/tools/vocabs/monitor/monitor-tests.factor b/basis/tools/vocabs/monitor/monitor-tests.factor
similarity index 100%
rename from extra/tools/vocabs/monitor/monitor-tests.factor
rename to basis/tools/vocabs/monitor/monitor-tests.factor
diff --git a/extra/tools/vocabs/monitor/monitor.factor b/basis/tools/vocabs/monitor/monitor.factor
similarity index 85%
rename from extra/tools/vocabs/monitor/monitor.factor
rename to basis/tools/vocabs/monitor/monitor.factor
index ee5198a8f4..ed2e486ecc 100755
--- a/extra/tools/vocabs/monitor/monitor.factor
+++ b/basis/tools/vocabs/monitor/monitor.factor
@@ -2,12 +2,16 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: threads io.files io.monitors init kernel
 vocabs vocabs.loader tools.vocabs namespaces continuations
-sequences splitting assocs command-line concurrency.messaging io.backend sets ;
+sequences splitting assocs command-line concurrency.messaging
+io.backend sets tr ;
 IN: tools.vocabs.monitor
 
+TR: convert-separators "/\\" ".." ;
+
 : vocab-dir>vocab-name ( path -- vocab )
-    left-trim-separators right-trim-separators
-    { { CHAR: / CHAR: . } { CHAR: \\ CHAR: . } } substitute ;
+    trim-left-separators
+    trim-right-separators
+    convert-separators ;
 
 : path>vocab-name ( path -- vocab )
     dup ".factor" tail? [ parent-directory ] when ;
diff --git a/extra/tools/vocabs/monitor/summary.txt b/basis/tools/vocabs/monitor/summary.txt
similarity index 100%
rename from extra/tools/vocabs/monitor/summary.txt
rename to basis/tools/vocabs/monitor/summary.txt
diff --git a/extra/tools/vocabs/vocabs-docs.factor b/basis/tools/vocabs/vocabs-docs.factor
similarity index 100%
rename from extra/tools/vocabs/vocabs-docs.factor
rename to basis/tools/vocabs/vocabs-docs.factor
diff --git a/extra/tools/vocabs/vocabs-tests.factor b/basis/tools/vocabs/vocabs-tests.factor
similarity index 100%
rename from extra/tools/vocabs/vocabs-tests.factor
rename to basis/tools/vocabs/vocabs-tests.factor
diff --git a/extra/tools/vocabs/vocabs.factor b/basis/tools/vocabs/vocabs.factor
similarity index 76%
rename from extra/tools/vocabs/vocabs.factor
rename to basis/tools/vocabs/vocabs.factor
index effa17c179..1c7e8d28d2 100755
--- a/extra/tools/vocabs/vocabs.factor
+++ b/basis/tools/vocabs/vocabs.factor
@@ -1,10 +1,10 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io.files kernel io.encodings.utf8 vocabs.loader vocabs
-sequences namespaces math.parser arrays hashtables assocs
-memoize inspector sorting splitting combinators source-files
-io debugger continuations compiler.errors init
-checksums checksums.crc32 sets ;
+USING: kernel io io.styles io.files io.encodings.utf8
+vocabs.loader vocabs sequences namespaces math.parser arrays
+hashtables assocs memoize summary sorting splitting combinators
+source-files debugger continuations compiler.errors init
+checksums checksums.crc32 sets accessors ;
 IN: tools.vocabs
 
 : vocab-tests-file ( vocab -- path )
@@ -61,10 +61,10 @@ SYMBOL: failures
 
 : source-modified? ( path -- ? )
     dup source-files get at [
-        dup source-file-path
+        dup path>>
         dup exists? [
             utf8 file-lines crc32 checksum-lines
-            swap source-file-checksum = not
+            swap checksum>> = not
         ] [
             2drop f
         ] if
@@ -165,17 +165,17 @@ MEMO: vocab-file-contents ( vocab name -- seq )
 
 : vocab-summary ( vocab -- summary )
     dup dup vocab-summary-path vocab-file-contents
-    dup empty? [
-        drop vocab-name " vocabulary" append
+    [
+        vocab-name " vocabulary" append
     ] [
         nip first
-    ] if ;
+    ] if-empty ;
 
 M: vocab summary
     [
         dup vocab-summary %
         " (" %
-        vocab-words assoc-size #
+        words>> assoc-size #
         " words)" %
     ] "" make ;
 
@@ -190,7 +190,7 @@ M: vocab-link summary vocab-summary ;
     vocab-dir "tags.txt" append-path ;
 
 : vocab-tags ( vocab -- tags )
-    dup vocab-tags-path vocab-file-contents ;
+    dup vocab-tags-path vocab-file-contents harvest ;
 
 : set-vocab-tags ( tags vocab -- )
     dup vocab-tags-path set-vocab-file-contents ;
@@ -202,7 +202,7 @@ M: vocab-link summary vocab-summary ;
     vocab-dir "authors.txt" append-path ;
 
 : vocab-authors ( vocab -- authors )
-    dup vocab-authors-path vocab-file-contents ;
+    dup vocab-authors-path vocab-file-contents harvest ;
 
 : set-vocab-authors ( authors vocab -- )
     dup vocab-authors-path set-vocab-file-contents ;
@@ -212,11 +212,9 @@ M: vocab-link summary vocab-summary ;
 
 : (all-child-vocabs) ( root name -- vocabs )
     [ vocab-dir append-path subdirs ] keep
-    dup empty? [
-        drop
-    ] [
+    [
         swap [ "." swap 3append ] with map
-    ] if ;
+    ] unless-empty ;
 
 : vocabs-in-dir ( root name -- )
     dupd (all-child-vocabs) [
@@ -232,39 +230,15 @@ M: vocab-link summary vocab-summary ;
 MEMO: all-vocabs-seq ( -- seq )
     all-vocabs values concat ;
 
-: dangerous? ( name -- ? )
-    #! Hack
-    {
-        { [ "cpu." ?head ] [ t ] }
-        { [ "io.unix" ?head ] [ t ] }
-        { [ "io.windows" ?head ] [ t ] }
-        { [ "ui.x11" ?head ] [ t ] }
-        { [ "ui.windows" ?head ] [ t ] }
-        { [ "ui.cocoa" ?head ] [ t ] }
-        { [ "cocoa" ?head ] [ t ] }
-        { [ "core-foundation" ?head ] [ t ] }
-        { [ "vocabs.loader.test" ?head ] [ t ] }
-        { [ "editors." ?head ] [ t ] }
-        { [ ".windows" ?tail ] [ t ] }
-        { [ ".unix" ?tail ] [ t ] }
-        { [ "unix" ?head ] [ t ] }
-        { [ ".linux" ?tail ] [ t ] }
-        { [ ".bsd" ?tail ] [ t ] }
-        { [ ".macosx" ?tail ] [ t ] }
-        { [ "windows." ?head ] [ t ] }
-        { [ "cocoa" ?head ] [ t ] }
-        { [ ".test" ?tail ] [ t ] }
-        { [ "raptor" ?head ] [ t ] }
-        { [ dup "tools.deploy.app" = ] [ t ] }
-        [ f ]
-    } cond nip ;
+: unportable? ( name -- ? )
+    vocab-tags "unportable" swap member? ;
 
-: filter-dangerous ( seq -- seq' )
-    [ vocab-name dangerous? not ] filter ;
+: filter-unportable ( seq -- seq' )
+    [ vocab-name unportable? not ] filter ;
 
 : try-everything ( -- failures )
     all-vocabs-seq
-    filter-dangerous
+    filter-unportable
     require-all ;
 
 : load-everything ( -- )
@@ -291,14 +265,11 @@ MEMO: all-vocabs-seq ( -- seq )
         [ vocab-dir? ] with filter
     ] curry map concat ;
 
-: map>set ( seq quot -- )
-    map concat prune natural-sort ; inline
-
 MEMO: all-tags ( -- seq )
-    all-vocabs-seq [ vocab-tags ] map>set ;
+    all-vocabs-seq [ vocab-tags ] gather natural-sort ;
 
 MEMO: all-authors ( -- seq )
-    all-vocabs-seq [ vocab-authors ] map>set ;
+    all-vocabs-seq [ vocab-authors ] gather natural-sort ;
 
 : reset-cache ( -- )
     root-cache get-global clear-assoc
diff --git a/extra/tools/test/ui/authors.txt b/basis/tools/walker/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/tools/test/ui/authors.txt
rename to basis/tools/walker/authors.txt
diff --git a/extra/tools/time/authors.txt b/basis/tools/walker/debug/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/tools/time/authors.txt
rename to basis/tools/walker/debug/authors.txt
diff --git a/extra/tools/walker/debug/debug.factor b/basis/tools/walker/debug/debug.factor
similarity index 82%
rename from extra/tools/walker/debug/debug.factor
rename to basis/tools/walker/debug/debug.factor
index 1fded308b4..f2155ec125 100755
--- a/extra/tools/walker/debug/debug.factor
+++ b/basis/tools/walker/debug/debug.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: concurrency.promises models tools.walker kernel
 sequences concurrency.messaging locals continuations
-threads namespaces namespaces.private assocs ;
+threads namespaces namespaces.private assocs accessors ;
 IN: tools.walker.debug
 
 :: test-walker ( quot -- data )
@@ -26,6 +26,6 @@ IN: tools.walker.debug
         send-synchronous drop
 
         p ?promise
-        thread-variables walker-continuation swap at
-        model-value continuation-data
+        variables>> walker-continuation swap at
+        value>> data>>
     ] ;
diff --git a/extra/tools/walker/summary.txt b/basis/tools/walker/summary.txt
similarity index 100%
rename from extra/tools/walker/summary.txt
rename to basis/tools/walker/summary.txt
diff --git a/extra/tools/walker/walker-tests.factor b/basis/tools/walker/walker-tests.factor
similarity index 87%
rename from extra/tools/walker/walker-tests.factor
rename to basis/tools/walker/walker-tests.factor
index 2d4a6c3396..e002af8f6d 100755
--- a/extra/tools/walker/walker-tests.factor
+++ b/basis/tools/walker/walker-tests.factor
@@ -1,6 +1,7 @@
 USING: tools.walker io io.streams.string kernel math
 math.private namespaces prettyprint sequences tools.test
-continuations math.parser threads arrays tools.walker.debug ;
+continuations math.parser threads arrays tools.walker.debug
+generic.standard sequences.private kernel.private ;
 IN: tools.walker.tests
 
 [ { } ] [
@@ -49,6 +50,10 @@ IN: tools.walker.tests
     [ 5 6 number= ] test-walker
 ] unit-test
 
+[ { 0 } ] [
+    [ 0 { array-capacity } declare ] test-walker
+] unit-test
+
 [ { f } ] [
     [ "XYZ" "XYZ" mismatch ] test-walker
 ] unit-test
@@ -97,6 +102,9 @@ IN: tools.walker.tests
 [ { 6 } ]
 [ [ [ 3 throw ] [ 2 * ] recover ] test-walker ] unit-test
 
+[ { T{ no-method f + nth } } ]
+[ [ [ 0 \ + nth ] [ ] recover ] test-walker ] unit-test
+
 [ { } ] [
     [ "a" "b" set "c" "d" set [ ] test-walker ] with-scope
 ] unit-test
diff --git a/extra/tools/walker/walker.factor b/basis/tools/walker/walker.factor
similarity index 90%
rename from extra/tools/walker/walker.factor
rename to basis/tools/walker/walker.factor
index 2417e7ac39..c1073eda8c 100755
--- a/extra/tools/walker/walker.factor
+++ b/basis/tools/walker/walker.factor
@@ -3,7 +3,7 @@
 USING: threads kernel namespaces continuations combinators
 sequences math namespaces.private continuations.private
 concurrency.messaging quotations kernel.private words
-sequences.private assocs models arrays accessors
+sequences.private assocs models models.filter arrays accessors
 generic generic.standard definitions ;
 IN: tools.walker
 
@@ -22,8 +22,8 @@ DEFER: start-walker-thread
 
 : get-walker-thread ( -- status continuation thread )
     walker-thread tget [
-        [ thread-variables walker-status swap at ]
-        [ thread-variables walker-continuation swap at ]
+        [ variables>> walker-status swap at ]
+        [ variables>> walker-continuation swap at ]
         [ ] tri
     ] [
         f <model>
@@ -43,7 +43,7 @@ DEFER: start-walker-thread
     } cond ;
 
 : break ( -- )
-    continuation callstack over set-continuation-call
+    continuation callstack >>call
     show-walker send-synchronous
     after-break ;
 
@@ -64,9 +64,9 @@ M: object add-breakpoint ;
 
 : (step-into-quot) ( quot -- ) add-breakpoint call ;
 
-: (step-into-if) ? (step-into-quot) ;
+: (step-into-if) ( true false ? -- ) ? (step-into-quot) ;
 
-: (step-into-dispatch) nth (step-into-quot) ;
+: (step-into-dispatch) ( array n -- ) nth (step-into-quot) ;
 
 : (step-into-execute) ( word -- )
     {
@@ -75,14 +75,17 @@ M: object add-breakpoint ;
         { [ dup hook-generic? ] [ effective-method (step-into-execute) ] }
         { [ dup uses \ suspend swap member? ] [ execute break ] }
         { [ dup primitive? ] [ execute break ] }
-        [ word-def (step-into-quot) ]
+        [ def>> (step-into-quot) ]
     } cond ;
 
 \ (step-into-execute) t "step-into?" set-word-prop
 
-: (step-into-continuation)
+: (step-into-continuation) ( -- )
     continuation callstack >>call break ;
 
+: (step-into-call-next-method) ( class generic -- )
+    next-method-quot (step-into-quot) ;
+
 ! Messages sent to walker thread
 SYMBOL: step
 SYMBOL: step-out
@@ -132,6 +135,7 @@ SYMBOL: +stopped+
     { if [ (step-into-if) ] }
     { dispatch [ (step-into-dispatch) ] }
     { continuation [ (step-into-continuation) ] }
+    { (call-next-method) [ (step-into-call-next-method) ] }
 } [ "step-into" set-word-prop ] assoc-each
 
 {
@@ -159,7 +163,7 @@ SYMBOL: +stopped+
     ] change-frame ;
 
 : status ( -- symbol )
-    walker-status tget model-value ;
+    walker-status tget value>> ;
 
 : set-status ( symbol -- )
     walker-status tget set-model ;
@@ -193,7 +197,7 @@ SYMBOL: +stopped+
 : step-back-msg ( continuation -- continuation' )
     walker-history tget
     [ pop* ]
-    [ dup empty? [ drop ] [ nip pop ] if ] bi ;
+    [ [ nip pop ] unless-empty ] bi ;
 
 : walker-suspended ( continuation -- continuation' )
     +suspended+ set-status
@@ -244,7 +248,7 @@ SYMBOL: +stopped+
 : associate-thread ( walker -- )
     walker-thread tset
     [ f walker-thread tget send-synchronous drop ]
-    self set-thread-exit-handler ;
+    self (>>exit-handler) ;
 
 : start-walker-thread ( status continuation -- thread' )
     self [
@@ -254,10 +258,10 @@ SYMBOL: +stopped+
         V{ } clone walker-history tset
         walker-loop
     ] 3curry
-    "Walker on " self thread-name append spawn
+    "Walker on " self name>> append spawn
     [ associate-thread ] keep ;
 
 ! For convenience
 IN: syntax
 
-: B break ;
+: B ( -- ) break ;
diff --git a/extra/tools/vocabs/browser/authors.txt b/basis/tr/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/tools/vocabs/browser/authors.txt
rename to basis/tr/authors.txt
diff --git a/basis/tr/summary.txt b/basis/tr/summary.txt
new file mode 100644
index 0000000000..8678446951
--- /dev/null
+++ b/basis/tr/summary.txt
@@ -0,0 +1 @@
+Fast character-to-character translation of ASCII strings
diff --git a/basis/tr/tr-tests.factor b/basis/tr/tr-tests.factor
new file mode 100644
index 0000000000..c168f5384d
--- /dev/null
+++ b/basis/tr/tr-tests.factor
@@ -0,0 +1,8 @@
+IN: tr.tests
+USING: tr tools.test unicode.case ;
+
+TR: tr-test ch>upper "ABC" "XYZ" ;
+
+[ "XXYY" ] [ "aabb" tr-test ] unit-test
+[ "XXYY" ] [ "AABB" tr-test ] unit-test
+[ { 12345 } ] [ { 12345 } tr-test ] unit-test
diff --git a/basis/tr/tr.factor b/basis/tr/tr.factor
new file mode 100644
index 0000000000..b5ad2ba430
--- /dev/null
+++ b/basis/tr/tr.factor
@@ -0,0 +1,37 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: byte-arrays strings sequences sequences.private
+fry kernel words parser lexer assocs math.order ;
+IN: tr
+
+<PRIVATE
+
+: compute-tr ( quot from to -- mapping )
+    zip [ 256 ] 2dip '[ [ @ , at ] keep or ] B{ } map-as ; inline
+
+: tr-hints ( word -- )
+    { { byte-array } { string } } "specializer" set-word-prop ;
+
+: create-tr ( token -- word )
+    create-in dup tr-hints ;
+
+: tr-quot ( mapping -- quot )
+    '[ [ dup 0 255 between? [ , nth-unsafe ] when ] map ] ;
+
+: define-tr ( word mapping -- )
+    tr-quot (( seq -- translated )) define-declared ;
+
+: fast-tr-quot ( mapping -- quot )
+    '[ [ , nth-unsafe ] change-each ] ;
+
+: define-fast-tr ( word mapping -- )
+    fast-tr-quot (( seq -- )) define-declared ;
+
+PRIVATE>
+
+: TR:
+    scan parse-definition
+    unclip-last [ unclip-last ] dip compute-tr
+    [ [ create-tr ] dip define-tr ]
+    [ [ "-fast" append create-tr ] dip define-fast-tr ] 2bi ;
+    parsing
diff --git a/extra/unicode/authors.txt b/basis/tuple-arrays/authors.txt
similarity index 100%
rename from extra/unicode/authors.txt
rename to basis/tuple-arrays/authors.txt
diff --git a/extra/tuple-arrays/summary.txt b/basis/tuple-arrays/summary.txt
similarity index 100%
rename from extra/tuple-arrays/summary.txt
rename to basis/tuple-arrays/summary.txt
diff --git a/basis/tuple-arrays/tags.txt b/basis/tuple-arrays/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/basis/tuple-arrays/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/basis/tuple-arrays/tuple-arrays-docs.factor b/basis/tuple-arrays/tuple-arrays-docs.factor
new file mode 100644
index 0000000000..18f5547e7f
--- /dev/null
+++ b/basis/tuple-arrays/tuple-arrays-docs.factor
@@ -0,0 +1,13 @@
+USING: help.syntax help.markup splitting kernel sequences ;
+IN: tuple-arrays
+
+HELP: tuple-array
+{ $description "The class of packed homogeneous tuple arrays. They are created with " { $link <tuple-array> } ". All elements are of the same tuple class. Mutations done to an element are not copied back to the packed array unless it is explicitly written back. To convert a sequence to a tuple array, use the word " { $link >tuple-array } "." } ;
+
+HELP: <tuple-array>
+{ $values { "class" "a tuple class" } { "length" "a non-negative integer" } { "tuple-array" tuple-array } }
+{ $description "Creates an instance of the " { $link <tuple-array> } " class with the given length and containing the given tuple class." } ;
+
+HELP: >tuple-array
+{ $values { "seq" sequence } { "tuple-array" tuple-array } }
+{ $description "Converts a sequence into a homogeneous unboxed tuple array of the type indicated by the first element." } ;
diff --git a/basis/tuple-arrays/tuple-arrays-tests.factor b/basis/tuple-arrays/tuple-arrays-tests.factor
new file mode 100755
index 0000000000..7aa49b880f
--- /dev/null
+++ b/basis/tuple-arrays/tuple-arrays-tests.factor
@@ -0,0 +1,21 @@
+USING: tuple-arrays sequences tools.test namespaces kernel
+math accessors ;
+IN: tuple-arrays.tests
+
+SYMBOL: mat
+TUPLE: foo bar ;
+C: <foo> foo
+[ 2 ] [ 2 foo <tuple-array> dup mat set length ] unit-test
+[ T{ foo } ] [ mat get first ] unit-test
+[ T{ foo f 2 } ] [ T{ foo f 2 } 0 mat get [ set-nth ] keep first ] unit-test
+[ t ] [ { T{ foo f 1 } T{ foo f 2 } } >tuple-array dup mat set tuple-array? ] unit-test
+[ T{ foo f 3 } t ] 
+[ mat get [ bar>> 2 + <foo> ] map [ first ] keep tuple-array? ] unit-test
+
+[ 2 ] [ 2 foo <tuple-array> dup mat set length ] unit-test
+[ T{ foo } ] [ mat get first ] unit-test
+[ T{ foo f 1 } ] [ T{ foo f 1 } 0 mat get [ set-nth ] keep first ] unit-test
+
+TUPLE: baz { bing integer } bong ;
+[ 0 ] [ 1 baz <tuple-array> first bing>> ] unit-test
+[ f ] [ 1 baz <tuple-array> first bong>> ] unit-test
diff --git a/basis/tuple-arrays/tuple-arrays.factor b/basis/tuple-arrays/tuple-arrays.factor
new file mode 100644
index 0000000000..5da7085773
--- /dev/null
+++ b/basis/tuple-arrays/tuple-arrays.factor
@@ -0,0 +1,34 @@
+! Copyright (C) 2007 Daniel Ehrenberg.
+! See http://factorcode.org/license.txt for BSD license.
+USING: splitting grouping classes.tuple classes math kernel
+sequences arrays accessors ;
+IN: tuple-arrays
+
+TUPLE: tuple-array { seq read-only } { class read-only } ;
+
+: <tuple-array> ( length class -- tuple-array )
+    [
+        new tuple>array 1 tail
+        [ <repetition> concat ] [ length ] bi <sliced-groups>
+    ] [ ] bi tuple-array boa ;
+
+M: tuple-array nth
+    [ seq>> nth ] [ class>> ] bi prefix >tuple ;
+
+M: tuple-array set-nth ( elt n seq -- )
+    >r >r tuple>array 1 tail r> r> seq>> set-nth ;
+
+M: tuple-array new-sequence
+    class>> <tuple-array> ;
+
+: >tuple-array ( seq -- tuple-array )
+    dup empty? [
+        0 over first class <tuple-array> clone-like
+    ] unless ;
+
+M: tuple-array like 
+    drop dup tuple-array? [ >tuple-array ] unless ;
+
+M: tuple-array length seq>> length ;
+
+INSTANCE: tuple-array sequence
diff --git a/extra/tools/vocabs/monitor/authors.txt b/basis/ui/authors.txt
similarity index 100%
rename from extra/tools/vocabs/monitor/authors.txt
rename to basis/ui/authors.txt
diff --git a/extra/tools/walker/authors.txt b/basis/ui/backend/authors.txt
similarity index 100%
rename from extra/tools/walker/authors.txt
rename to basis/ui/backend/authors.txt
diff --git a/extra/ui/backend/backend.factor b/basis/ui/backend/backend.factor
similarity index 95%
rename from extra/ui/backend/backend.factor
rename to basis/ui/backend/backend.factor
index 7ca09b89b4..0840d07cbc 100755
--- a/extra/ui/backend/backend.factor
+++ b/basis/ui/backend/backend.factor
@@ -23,6 +23,8 @@ HOOK: select-gl-context ui-backend ( handle -- )
 
 HOOK: flush-gl-context ui-backend ( handle -- )
 
+HOOK: beep ui-backend ( -- )
+
 : with-gl-context ( handle quot -- )
     swap [ select-gl-context call ] keep
     glFlush flush-gl-context gl-error ; inline
diff --git a/extra/ui/backend/summary.txt b/basis/ui/backend/summary.txt
similarity index 100%
rename from extra/ui/backend/summary.txt
rename to basis/ui/backend/summary.txt
diff --git a/extra/tools/walker/debug/authors.txt b/basis/ui/clipboards/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/tools/walker/debug/authors.txt
rename to basis/ui/clipboards/authors.txt
diff --git a/extra/ui/clipboards/clipboards-docs.factor b/basis/ui/clipboards/clipboards-docs.factor
similarity index 100%
rename from extra/ui/clipboards/clipboards-docs.factor
rename to basis/ui/clipboards/clipboards-docs.factor
diff --git a/basis/ui/clipboards/clipboards.factor b/basis/ui/clipboards/clipboards.factor
new file mode 100644
index 0000000000..e1b591dfb9
--- /dev/null
+++ b/basis/ui/clipboards/clipboards.factor
@@ -0,0 +1,42 @@
+! Copyright (C) 2006, 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: kernel accessors ui.gadgets ui.gestures namespaces ;
+
+IN: ui.clipboards
+
+! Two text transfer buffers
+
+TUPLE: clipboard contents ;
+
+GENERIC: clipboard-contents ( clipboard -- string )
+
+GENERIC: set-clipboard-contents ( string clipboard -- )
+
+M: clipboard clipboard-contents contents>> ;
+
+M: clipboard set-clipboard-contents (>>contents) ;
+
+: <clipboard> ( -- clipboard ) "" clipboard boa ;
+
+GENERIC: paste-clipboard ( gadget clipboard -- )
+
+M: object paste-clipboard
+    clipboard-contents dup [ swap user-input ] [ 2drop ] if ;
+
+GENERIC: copy-clipboard ( string gadget clipboard -- )
+
+M: object copy-clipboard nip set-clipboard-contents ;
+
+SYMBOL: clipboard
+SYMBOL: selection
+
+: gadget-copy ( gadget clipboard -- )
+    over gadget-selection?
+        [ >r [ gadget-selection ] keep r> copy-clipboard ]
+        [ 2drop ]
+    if ;
+
+: com-copy ( gadget -- ) clipboard get gadget-copy ;
+
+: com-copy-selection ( gadget -- ) selection get gadget-copy ;
diff --git a/extra/ui/clipboards/summary.txt b/basis/ui/clipboards/summary.txt
similarity index 100%
rename from extra/ui/clipboards/summary.txt
rename to basis/ui/clipboards/summary.txt
diff --git a/extra/ui/authors.txt b/basis/ui/cocoa/authors.txt
similarity index 100%
rename from extra/ui/authors.txt
rename to basis/ui/cocoa/authors.txt
diff --git a/extra/ui/cocoa/cocoa.factor b/basis/ui/cocoa/cocoa.factor
similarity index 60%
rename from extra/ui/cocoa/cocoa.factor
rename to basis/ui/cocoa/cocoa.factor
index d1b7f22b41..1a05d23aa0 100755
--- a/extra/ui/cocoa/cocoa.factor
+++ b/basis/ui/cocoa/cocoa.factor
@@ -1,11 +1,11 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: math arrays cocoa cocoa.application command-line
-kernel memory namespaces cocoa.messages cocoa.runtime
-cocoa.subclassing cocoa.pasteboard cocoa.types cocoa.windows
-cocoa.classes cocoa.application sequences system ui ui.backend
-ui.clipboards ui.gadgets ui.gadgets.worlds ui.cocoa.views
-core-foundation threads ;
+USING: accessors math arrays cocoa cocoa.application
+command-line kernel memory namespaces cocoa.messages
+cocoa.runtime cocoa.subclassing cocoa.pasteboard cocoa.types
+cocoa.windows cocoa.classes cocoa.application sequences system
+ui ui.backend ui.clipboards ui.gadgets ui.gadgets.worlds
+ui.cocoa.views core-foundation threads math.geometry.rect ;
 IN: ui.cocoa
 
 TUPLE: handle view window ;
@@ -16,10 +16,7 @@ SINGLETON: cocoa-ui-backend
 
 M: cocoa-ui-backend do-events ( -- )
     [
-        [
-            NSApp [ dup do-event ] [ ] [ ] while drop
-            ui-wait
-        ] ui-try
+        [ NSApp [ do-event ] curry loop ui-wait ] ui-try
     ] with-autorelease-pool ;
 
 TUPLE: pasteboard handle ;
@@ -27,10 +24,10 @@ TUPLE: pasteboard handle ;
 C: <pasteboard> pasteboard
 
 M: pasteboard clipboard-contents
-    pasteboard-handle pasteboard-string ;
+    handle>> pasteboard-string ;
 
 M: pasteboard set-clipboard-contents
-    pasteboard-handle set-pasteboard-string ;
+    handle>> set-pasteboard-string ;
 
 : init-clipboard ( -- )
     NSPasteboard -> generalPasteboard <pasteboard>
@@ -38,7 +35,7 @@ M: pasteboard set-clipboard-contents
     <clipboard> selection set-global ;
 
 : world>NSRect ( world -- NSRect )
-    dup world-loc first2 rot rect-dim first2 <NSRect> ;
+    dup window-loc>> first2 rot rect-dim first2 <NSRect> ;
 
 : gadget-window ( world -- )
     [
@@ -47,29 +44,29 @@ M: pasteboard set-clipboard-contents
         dup install-window-delegate
         over -> release
         <handle>
-    ] keep set-world-handle ;
+    ] keep (>>handle) ;
 
 M: cocoa-ui-backend set-title ( string world -- )
-    world-handle handle-window swap <NSString> -> setTitle: ;
+    handle>> window>> swap <NSString> -> setTitle: ;
 
 : enter-fullscreen ( world -- )
-    world-handle handle-view
+    handle>> view>>
     NSScreen -> mainScreen
     f -> enterFullScreenMode:withOptions:
     drop ;
 
 : exit-fullscreen ( world -- )
-    world-handle handle-view f -> exitFullScreenModeWithOptions: ;
+    handle>> view>> f -> exitFullScreenModeWithOptions: ;
 
 M: cocoa-ui-backend set-fullscreen* ( ? world -- )
     swap [ enter-fullscreen ] [ exit-fullscreen ] if ;
 
 M: cocoa-ui-backend fullscreen* ( world -- ? )
-    world-handle handle-view -> isInFullScreenMode zero? not ;
+    handle>> view>> -> isInFullScreenMode zero? not ;
 
 : auto-position ( world -- )
-    dup world-loc { 0 0 } = [
-        world-handle handle-window -> center
+    dup window-loc>> { 0 0 } = [
+        handle>> window>> -> center
     ] [
         drop
     ] if ;
@@ -77,29 +74,32 @@ M: cocoa-ui-backend fullscreen* ( world -- ? )
 M: cocoa-ui-backend (open-window) ( world -- )
     dup gadget-window
     dup auto-position
-    world-handle handle-window f -> makeKeyAndOrderFront: ;
+    handle>> window>> f -> makeKeyAndOrderFront: ;
 
 M: cocoa-ui-backend (close-window) ( handle -- )
-    handle-window -> release ;
+    window>> -> release ;
 
 M: cocoa-ui-backend close-window ( gadget -- )
     find-world [
-        world-handle [
-            handle-window f -> performClose:
+        handle>> [
+            window>> f -> performClose:
         ] when*
     ] when* ;
 
 M: cocoa-ui-backend raise-window* ( world -- )
-    world-handle [
-        handle-window dup f -> orderFront: -> makeKeyWindow
+    handle>> [
+        window>> dup f -> orderFront: -> makeKeyWindow
         NSApp 1 -> activateIgnoringOtherApps:
     ] when* ;
 
 M: cocoa-ui-backend select-gl-context ( handle -- )
-    handle-view -> openGLContext -> makeCurrentContext ;
+    view>> -> openGLContext -> makeCurrentContext ;
 
 M: cocoa-ui-backend flush-gl-context ( handle -- )
-    handle-view -> openGLContext -> flushBuffer ;
+    view>> -> openGLContext -> flushBuffer ;
+
+M: cocoa-ui-backend beep ( -- )
+    NSBeep ;
 
 SYMBOL: cocoa-init-hook
 
@@ -107,7 +107,6 @@ M: cocoa-ui-backend ui
     "UI" assert.app [
         [
             init-clipboard
-            stop-after-last-window? off
             cocoa-init-hook get [ call ] when*
             start-ui
             finish-launching
diff --git a/extra/ui/cocoa/summary.txt b/basis/ui/cocoa/summary.txt
similarity index 100%
rename from extra/ui/cocoa/summary.txt
rename to basis/ui/cocoa/summary.txt
diff --git a/basis/ui/cocoa/tags.txt b/basis/ui/cocoa/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/ui/cocoa/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/backend/authors.txt b/basis/ui/cocoa/tools/authors.txt
similarity index 100%
rename from extra/ui/backend/authors.txt
rename to basis/ui/cocoa/tools/authors.txt
diff --git a/extra/ui/cocoa/tools/summary.txt b/basis/ui/cocoa/tools/summary.txt
similarity index 100%
rename from extra/ui/cocoa/tools/summary.txt
rename to basis/ui/cocoa/tools/summary.txt
diff --git a/basis/ui/cocoa/tools/tags.txt b/basis/ui/cocoa/tools/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/ui/cocoa/tools/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/cocoa/tools/tools.factor b/basis/ui/cocoa/tools/tools.factor
similarity index 92%
rename from extra/ui/cocoa/tools/tools.factor
rename to basis/ui/cocoa/tools/tools.factor
index 3ff34f677d..876e9e5df1 100755
--- a/extra/ui/cocoa/tools/tools.factor
+++ b/basis/ui/cocoa/tools/tools.factor
@@ -4,7 +4,7 @@ USING: alien.syntax cocoa cocoa.nibs cocoa.application
 cocoa.classes cocoa.dialogs cocoa.pasteboard cocoa.subclassing
 core-foundation help.topics kernel memory namespaces parser
 system ui ui.tools.browser ui.tools.listener ui.tools.workspace
-ui.cocoa ;
+ui.cocoa eval locals ;
 IN: ui.cocoa.tools
 
 : finder-run-files ( alien -- )
@@ -52,10 +52,10 @@ CLASS: {
     NSApp FactorApplicationDelegate install-delegate ;
 
 ! Service support; evaluate Factor code from other apps
-: do-service ( pboard error quot -- )
-    pick >r >r
-    ?pasteboard-string dup [ r> call ] [ r> 2drop f ] if
-    dup [ r> set-pasteboard-string ] [ r> 2drop ] if ;
+:: do-service ( pboard error quot -- )
+    pboard error ?pasteboard-string
+    dup [ quot call ] when
+    [ pboard set-pasteboard-string ] when* ;
 
 CLASS: {
     { +superclass+ "NSObject" }
diff --git a/extra/ui/clipboards/authors.txt b/basis/ui/cocoa/views/authors.txt
similarity index 100%
rename from extra/ui/clipboards/authors.txt
rename to basis/ui/cocoa/views/authors.txt
diff --git a/extra/ui/cocoa/views/summary.txt b/basis/ui/cocoa/views/summary.txt
similarity index 100%
rename from extra/ui/cocoa/views/summary.txt
rename to basis/ui/cocoa/views/summary.txt
diff --git a/basis/ui/cocoa/views/tags.txt b/basis/ui/cocoa/views/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/ui/cocoa/views/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/cocoa/views/views.factor b/basis/ui/cocoa/views/views.factor
similarity index 95%
rename from extra/ui/cocoa/views/views.factor
rename to basis/ui/cocoa/views/views.factor
index 20e6e19de5..45ab8ac0ce 100755
--- a/extra/ui/cocoa/views/views.factor
+++ b/basis/ui/cocoa/views/views.factor
@@ -1,9 +1,10 @@
 ! Copyright (C) 2006, 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types arrays assocs cocoa kernel math cocoa.messages
-cocoa.subclassing cocoa.classes cocoa.views cocoa.application
-cocoa.pasteboard cocoa.types cocoa.windows sequences ui ui.gadgets
-ui.gadgets.worlds ui.gestures core-foundation threads combinators ;
+USING: accessors alien alien.c-types arrays assocs cocoa kernel
+math cocoa.messages cocoa.subclassing cocoa.classes cocoa.views
+cocoa.application cocoa.pasteboard cocoa.types cocoa.windows
+sequences ui ui.gadgets ui.gadgets.worlds ui.gestures
+core-foundation threads combinators math.geometry.rect ;
 IN: ui.cocoa.views
 
 : send-mouse-moved ( view event -- )
@@ -126,7 +127,6 @@ CLASS: {
     { +protocols+ { "NSTextInput" } }
 }
 
-! Rendering
 ! Rendering
 { "drawRect:" "void" { "id" "SEL" "id" "NSRect" }
     [ 3drop window relayout-1 ]
@@ -337,7 +337,7 @@ CLASS: {
 { "updateFactorGadgetSize:" "void" { "id" "SEL" "id" }
     [
         [
-            2drop dup view-dim swap window set-gadget-dim yield
+            2drop dup view-dim swap window (>>dim) yield
         ] ui-try
     ]
 }
@@ -377,7 +377,7 @@ CLASS: {
     [
         2nip -> object
         dup window-content-rect NSRect-x-y 2array
-        swap -> contentView window set-world-loc
+        swap -> contentView window (>>window-loc)
     ]
 }
 
diff --git a/extra/ui/cocoa/authors.txt b/basis/ui/commands/authors.txt
similarity index 100%
rename from extra/ui/cocoa/authors.txt
rename to basis/ui/commands/authors.txt
diff --git a/extra/ui/commands/commands-docs.factor b/basis/ui/commands/commands-docs.factor
similarity index 86%
rename from extra/ui/commands/commands-docs.factor
rename to basis/ui/commands/commands-docs.factor
index 5ff0752c19..804236dadc 100644
--- a/extra/ui/commands/commands-docs.factor
+++ b/basis/ui/commands/commands-docs.factor
@@ -1,30 +1,36 @@
-USING: ui.gestures help.markup help.syntax strings kernel
+USING: accessors ui.gestures help.markup help.syntax strings kernel
 hashtables quotations words classes sequences namespaces
 arrays assocs ;
 IN: ui.commands
 
-: command-map-row
+: command-map-row ( gesture command -- seq )
     [
-        dup first gesture>string ,
-        second dup command-name ,
-        dup command-word \ $link swap 2array ,
-        command-description ,
-    ] [ ] make ;
+        [ gesture>string , ]
+        [
+            [ command-name , ]
+            [ command-word \ $link swap 2array , ]
+            [ command-description , ]
+            tri
+        ] bi*
+    ] { } make ;
 
-: command-map. ( command-map -- )
-    [ command-map-row ] map
+: command-map. ( alist -- )
+    [ command-map-row ] { } assoc>map
     { "Shortcut" "Command" "Word" "Notes" }
     [ \ $strong swap ] { } map>assoc prefix
     $table ;
 
 : $command-map ( element -- )
-    first2
-    dup (command-name) " commands" append $heading
-    swap command-map
-    dup command-map-blurb print-element command-map. ;
+    [ second (command-name) " commands" append $heading ]
+    [
+        first2 swap command-map
+        [ blurb>> print-element ] [ commands>> command-map. ] bi
+    ] bi ;
 
 : $command ( element -- )
-    reverse first3 command-map value-at gesture>string $snippet ;
+    reverse first3 command-map
+    commands>> value-at gesture>string
+    $snippet ;
 
 HELP: +nullary+
 { $description "A key which may be set in the hashtable passed to " { $link define-command } ". If set to a true value, the command does not take any inputs, and the value passed to " { $link invoke-command } " will be ignored. Otherwise, it takes one input." } ;
@@ -67,7 +73,7 @@ HELP: command-word
 HELP: command-map
 { $values { "group" string } { "class" "a class word" } { "command-map" "a " { $link command-map } " or " { $link f } } }
 { $description "Outputs a named command map defined on a class." }
-{ $class-description "A command map stores a group of related commands. Instances of this class delegate to arrays so behave like sequences; additionally the " { $link command-map-blurb } " slot stores a string description of the command group, or " { $link f } "."
+{ $class-description "A command map stores a group of related commands. The " { $snippet "commands" } " slot stores an association list mapping gestures to commands, and the " { $snippet "blurb" } " slot stores an optional one-line description string of this command map."
 $nl
 "Command maps are created by calling " { $link <command-map> } " or " { $link define-command-map } "." } ;
 
diff --git a/extra/ui/commands/commands-tests.factor b/basis/ui/commands/commands-tests.factor
similarity index 100%
rename from extra/ui/commands/commands-tests.factor
rename to basis/ui/commands/commands-tests.factor
diff --git a/extra/ui/commands/commands.factor b/basis/ui/commands/commands.factor
similarity index 78%
rename from extra/ui/commands/commands.factor
rename to basis/ui/commands/commands.factor
index f341595969..2677c496ec 100755
--- a/extra/ui/commands/commands.factor
+++ b/basis/ui/commands/commands.factor
@@ -1,8 +1,8 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions kernel sequences strings math assocs
-words generic namespaces assocs quotations splitting
-ui.gestures unicode.case unicode.categories ;
+USING: accessors arrays definitions kernel sequences strings
+math assocs words generic namespaces assocs quotations splitting
+ui.gestures unicode.case unicode.categories tr ;
 IN: ui.commands
 
 SYMBOL: +nullary+
@@ -15,16 +15,14 @@ GENERIC: invoke-command ( target command -- )
 
 GENERIC: command-name ( command -- str )
 
-TUPLE: command-map blurb ;
+TUPLE: command-map blurb commands ;
 
 GENERIC: command-description ( command -- str/f )
 
 GENERIC: command-word ( command -- word )
 
 : <command-map> ( blurb commands -- command-map )
-    { } like
-    { set-command-map-blurb set-delegate }
-    \ command-map construct ;
+    { } like \ command-map boa ;
 
 : commands ( class -- hash )
     dup "commands" word-prop [ ] [
@@ -37,7 +35,8 @@ GENERIC: command-word ( command -- word )
 : command-gestures ( class -- hash )
     commands values [
         [
-            [ first ] filter
+            commands>>
+            [ drop ] assoc-filter
             [ [ invoke-command ] curry swap set ] assoc-each
         ] each
     ] H{ } make-assoc ;
@@ -50,11 +49,13 @@ GENERIC: command-word ( command -- word )
     swap pick commands set-at
     update-gestures ;
 
+TR: convert-command-name "-" " " ;
+
 : (command-name) ( string -- newstring )
-    { { CHAR: - CHAR: \s } } substitute >title ;
+    convert-command-name >title ;
 
 M: word command-name ( word -- str )
-    word-name
+    name>> 
     "com-" ?head drop
     dup first Letter? [ rest ] unless
     (command-name) ;
@@ -66,7 +67,7 @@ M: word command-description ( word -- str )
     H{ { +nullary+ f } { +listener+ f } { +description+ f } } ;
 
 : define-command ( word hash -- )
-    [ word-props ] [ default-flags swap assoc-union ] bi* update ;
+    [ props>> ] [ default-flags swap assoc-union ] bi* update ;
 
 : command-quot ( target command -- quot )
     dup 1quotation swap +nullary+ word-prop
diff --git a/extra/ui/commands/summary.txt b/basis/ui/commands/summary.txt
similarity index 100%
rename from extra/ui/commands/summary.txt
rename to basis/ui/commands/summary.txt
diff --git a/extra/ui/cocoa/tools/authors.txt b/basis/ui/freetype/authors.txt
similarity index 100%
rename from extra/ui/cocoa/tools/authors.txt
rename to basis/ui/freetype/authors.txt
diff --git a/extra/ui/freetype/freetype-docs.factor b/basis/ui/freetype/freetype-docs.factor
similarity index 81%
rename from extra/ui/freetype/freetype-docs.factor
rename to basis/ui/freetype/freetype-docs.factor
index 855df9f564..ef01c6756c 100755
--- a/extra/ui/freetype/freetype-docs.factor
+++ b/basis/ui/freetype/freetype-docs.factor
@@ -16,12 +16,35 @@ HELP: init-freetype
 { $notes "Do not call this word if you are using the UI." } ;
 
 HELP: font
-{ $class-description "A font which has been loaded by FreeType. Font instances have the following slots:"
-    { $list
-        { { $link font-ascent } ", " { $link font-descent } ", " { $link font-height } " - metrics." }
-        { { $link font-handle } " - alien pointer to an " { $snippet "FT_Face" } "." }
-        { { $link font-widths } " - sequence of character widths. Use " { $link char-width } " and " { $link string-width } " to compute string widths instead of reading this sequence directly." }
-    }
+
+{ $class-description
+
+"A font which has been loaded by FreeType. Font instances have the following slots:"
+
+{
+  $list
+  {
+    { $snippet "ascent"  } ", "
+    { $snippet "descent" } ", "
+    { $snippet "height"  } " - metrics."
+  }
+
+  {
+    { $snippet "handle" }
+    " - alien pointer to an "
+    { $snippet "FT_Face" } "."
+  }
+
+  {
+    { $snippet "widths" }
+    " - sequence of character widths. Use "
+    { $snippet "width" }
+    " and "
+    { $snippet "width" }
+    " to compute string widths instead of reading this sequence directly."
+  }
+}
+
 } ;
 
 HELP: close-freetype
diff --git a/extra/ui/freetype/freetype.factor b/basis/ui/freetype/freetype.factor
similarity index 93%
rename from extra/ui/freetype/freetype.factor
rename to basis/ui/freetype/freetype.factor
index 3512bbf670..d2dfe56ed4 100755
--- a/extra/ui/freetype/freetype.factor
+++ b/basis/ui/freetype/freetype.factor
@@ -33,7 +33,7 @@ ascent descent height handle widths ;
 
 M: font hashcode* drop font hashcode* ;
 
-: close-font ( font -- ) font-handle FT_Done_Face ;
+: close-font ( font -- ) handle>> FT_Done_Face ;
 
 : close-freetype ( -- )
     global [
@@ -111,11 +111,11 @@ M: freetype-renderer open-font ( font -- open-font )
     freetype drop open-fonts get [ <font> ] cache ;
 
 : load-glyph ( font char -- glyph )
-    >r font-handle dup r> 0 FT_Load_Char
+    >r handle>> dup r> 0 FT_Load_Char
     freetype-error face-glyph ;
 
 : char-width ( open-font char -- w )
-    over font-widths [
+    over widths>> [
         dupd load-glyph glyph-hori-advance ft-ceil
     ] cache nip ;
 
@@ -123,7 +123,7 @@ M: freetype-renderer string-width ( open-font string -- w )
     0 -rot [ char-width + ] with each ;
 
 M: freetype-renderer string-height ( open-font string -- h )
-    drop font-height ;
+    drop height>> ;
 
 : glyph-size ( glyph -- dim )
     dup glyph-hori-advance ft-ceil
@@ -142,7 +142,7 @@ M: freetype-renderer string-height ( open-font string -- h )
     i end < [
         i j bitmap texture copy-pixel
             bitmap texture end (copy-row)
-    ] when ; inline
+    ] when ; inline recursive
 
 :: copy-row ( i j bitmap texture width width2 -- i j )
     i j bitmap texture i width + (copy-row)
@@ -166,7 +166,7 @@ M: freetype-renderer string-height ( open-font string -- h )
 
 : glyph-texture-loc ( glyph font -- loc )
     over glyph-hori-bearing-x ft-floor -rot
-    font-ascent swap glyph-hori-bearing-y - ft-floor 2array ;
+    ascent>> swap glyph-hori-bearing-y - ft-floor 2array ;
 
 : glyph-texture-size ( glyph -- dim )
     [ glyph-bitmap-width next-power-of-2 ]
@@ -184,7 +184,7 @@ M: freetype-renderer string-height ( open-font string -- h )
 : draw-char ( open-font sprites char loc -- )
     GL_MODELVIEW [
         0 0 glTranslated
-        char-sprite sprite-dlist glCallList
+        char-sprite dlist>> glCallList
     ] do-matrix ;
 
 : char-widths ( open-font string -- widths )
@@ -203,7 +203,7 @@ M: freetype-renderer string-height ( open-font string -- h )
     ] do-enabled ;
 
 : font-sprites ( font world -- open-font sprites )
-    world-fonts [ open-font H{ } clone 2array ] cache first2 ;
+    fonts>> [ open-font H{ } clone 2array ] cache first2 ;
 
 M: freetype-renderer draw-string ( font string loc -- )
     >r >r world get font-sprites r> r> (draw-string) ;
@@ -212,7 +212,7 @@ M: freetype-renderer draw-string ( font string loc -- )
     char-widths [ scan-sums ] [ 2 v/n ] bi v+ ;
 
 M: freetype-renderer x>offset ( x open-font string -- n )
-    dup >r run-char-widths [ <= ] with find drop
-    [ r> drop ] [ r> length ] if* ;
+    [ run-char-widths [ <= ] with find drop ] keep swap
+    [ ] [ length ] ?if ;
 
 T{ freetype-renderer } font-renderer set-global
diff --git a/extra/ui/freetype/summary.txt b/basis/ui/freetype/summary.txt
similarity index 100%
rename from extra/ui/freetype/summary.txt
rename to basis/ui/freetype/summary.txt
diff --git a/extra/ui/cocoa/views/authors.txt b/basis/ui/gadgets/authors.txt
similarity index 100%
rename from extra/ui/cocoa/views/authors.txt
rename to basis/ui/gadgets/authors.txt
diff --git a/extra/ui/commands/authors.txt b/basis/ui/gadgets/books/authors.txt
similarity index 100%
rename from extra/ui/commands/authors.txt
rename to basis/ui/gadgets/books/authors.txt
diff --git a/extra/ui/gadgets/books/books-docs.factor b/basis/ui/gadgets/books/books-docs.factor
similarity index 65%
rename from extra/ui/gadgets/books/books-docs.factor
rename to basis/ui/gadgets/books/books-docs.factor
index 197ef7d4a2..f6f5d7dd4d 100755
--- a/extra/ui/gadgets/books/books-docs.factor
+++ b/basis/ui/gadgets/books/books-docs.factor
@@ -2,10 +2,17 @@ USING: help.markup help.syntax ui.gadgets models ;
 IN: ui.gadgets.books
 
 HELP: book
-{ $class-description "A book is a control containing one or more children. The " { $link control-value } " is the index of exactly one child to be visible at any one time, the rest being hidden by having their " { $link gadget-visible? } " slots set to " { $link f } ". The sole visible child assumes the dimensions of the book gadget."
+{ $class-description "A book is a control containing one or more children. The " { $link control-value } " is the index of exactly one child to be visible at any one time, the rest being hidden by having their " { $snippet "visible?" } " slots set to " { $link f } ". The sole visible child assumes the dimensions of the book gadget."
 $nl
 "Books are created by calling " { $link <book> } "." } ;
 
 HELP: <book>
 { $values { "pages" "a sequence of gadgets" } { "model" model } { "book" book } }
 { $description "Creates a " { $link book } " control, which contains the gadgets in " { $snippet "pages" } ". A book shows one child at a time, determined by the value of the model, which must be an integer " } ;
+
+ARTICLE: "ui-book-layout" "Book layouts"
+"Books can contain any number of children, and display one child at a time."
+{ $subsection book }
+{ $subsection <book> } ;
+
+ABOUT: "ui-book-layout"
diff --git a/extra/ui/gadgets/books/books-tests.factor b/basis/ui/gadgets/books/books-tests.factor
similarity index 100%
rename from extra/ui/gadgets/books/books-tests.factor
rename to basis/ui/gadgets/books/books-tests.factor
diff --git a/basis/ui/gadgets/books/books.factor b/basis/ui/gadgets/books/books.factor
new file mode 100755
index 0000000000..161677b56a
--- /dev/null
+++ b/basis/ui/gadgets/books/books.factor
@@ -0,0 +1,30 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel sequences models ui.gadgets math.geometry.rect ;
+IN: ui.gadgets.books
+
+TUPLE: book < gadget ;
+
+: hide-all ( book -- ) children>> [ hide-gadget ] each ;
+
+: current-page ( book -- gadget ) [ control-value ] keep nth-gadget ;
+
+M: book model-changed ( model book -- )
+    nip
+    dup hide-all
+    dup current-page show-gadget
+    relayout ;
+
+: new-book ( pages model class -- book )
+  new-gadget
+    swap >>model
+    swap add-gadgets ; inline
+
+: <book> ( pages model -- book ) book new-book ;
+
+M: book pref-dim* ( book -- dim ) children>> pref-dims max-dim ;
+
+M: book layout* ( book -- )
+   [ dim>> ] [ children>> ] bi [ (>>dim) ] with each ;
+
+M: book focusable-child* ( book -- child/t ) current-page ;
diff --git a/extra/ui/gadgets/books/summary.txt b/basis/ui/gadgets/books/summary.txt
similarity index 100%
rename from extra/ui/gadgets/books/summary.txt
rename to basis/ui/gadgets/books/summary.txt
diff --git a/extra/ui/freetype/authors.txt b/basis/ui/gadgets/borders/authors.txt
similarity index 100%
rename from extra/ui/freetype/authors.txt
rename to basis/ui/gadgets/borders/authors.txt
diff --git a/extra/ui/gadgets/borders/borders-docs.factor b/basis/ui/gadgets/borders/borders-docs.factor
similarity index 100%
rename from extra/ui/gadgets/borders/borders-docs.factor
rename to basis/ui/gadgets/borders/borders-docs.factor
diff --git a/basis/ui/gadgets/borders/borders-tests.factor b/basis/ui/gadgets/borders/borders-tests.factor
new file mode 100644
index 0000000000..0151996c02
--- /dev/null
+++ b/basis/ui/gadgets/borders/borders-tests.factor
@@ -0,0 +1,25 @@
+IN: ui.gadgets.borders.tests
+USING: tools.test accessors namespaces kernel
+ui.gadgets ui.gadgets.borders math.geometry.rect ;
+
+[ { 110 210 } ] [ <gadget> { 100 200 } >>dim 5 <border> pref-dim ] unit-test
+
+[ ] [ <gadget> { 100 200 } >>dim "g" set ] unit-test
+
+[ ] [ "g" get 0 <border> { 100 200 } >>dim "b" set ] unit-test
+
+[ T{ rect f { 0 0 } { 100 200 } } ] [ "b" get border-child-rect ] unit-test
+
+[ ] [ "g" get 5 <border> { 210 210 } >>dim "b" set ] unit-test
+
+[ T{ rect f { 55 5 } { 100 200 } } ] [ "b" get border-child-rect ] unit-test
+
+[ ] [ "b" get { 0 0 } >>align drop ] unit-test
+
+[ { 5 5 } ] [ "b" get { 100 200 } border-loc ] unit-test
+
+[ T{ rect f { 5 5 } { 100 200 } } ] [ "b" get border-child-rect ] unit-test
+
+[ ] [ "b" get { 1 1 } >>fill drop ] unit-test
+
+[ T{ rect f { 5 5 } { 200 200 } } ] [ "b" get border-child-rect ] unit-test
diff --git a/basis/ui/gadgets/borders/borders.factor b/basis/ui/gadgets/borders/borders.factor
new file mode 100644
index 0000000000..4609562af4
--- /dev/null
+++ b/basis/ui/gadgets/borders/borders.factor
@@ -0,0 +1,48 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays ui.gadgets kernel math
+namespaces vectors sequences math.vectors math.geometry.rect ;
+IN: ui.gadgets.borders
+
+TUPLE: border < gadget
+{ size initial: { 0 0 } }
+{ fill initial: { 0 0 } }
+{ align initial: { 1/2 1/2 } } ;
+
+: new-border ( child class -- border )
+    new-gadget [ swap add-gadget drop ] keep ; inline
+
+: <border> ( child gap -- border )
+    swap border new-border
+        swap dup 2array >>size ;
+
+M: border pref-dim*
+    [ size>> 2 v*n ] keep
+    gadget-child pref-dim v+ ;
+
+: border-major-dim ( border -- dim )
+    [ dim>> ] [ size>> 2 v*n ] bi v- ;
+
+: border-minor-dim ( border -- dim )
+    gadget-child pref-dim ;
+
+: scale ( a b s -- c )
+    tuck { 1 1 } swap v- [ v* ] 2bi@ v+ ;
+
+: border-dim ( border -- dim )
+    [ border-major-dim ] [ border-minor-dim ] [ fill>> ] tri scale ;
+
+: border-loc ( border dim -- loc )
+    [ [ size>> ] [ align>> ] [ border-major-dim ] tri ] dip
+    v- v* v+ [ >fixnum ] map ;
+
+: border-child-rect ( border -- rect )
+    dup border-dim [ border-loc ] keep <rect> ;
+
+M: border layout*
+    dup border-child-rect swap gadget-child
+    over loc>> >>loc
+    swap dim>> swap (>>dim) ;
+
+M: border focusable-child*
+    gadget-child ;
diff --git a/extra/ui/gadgets/borders/summary.txt b/basis/ui/gadgets/borders/summary.txt
similarity index 100%
rename from extra/ui/gadgets/borders/summary.txt
rename to basis/ui/gadgets/borders/summary.txt
diff --git a/extra/ui/gadgets/authors.txt b/basis/ui/gadgets/buttons/authors.txt
similarity index 100%
rename from extra/ui/gadgets/authors.txt
rename to basis/ui/gadgets/buttons/authors.txt
diff --git a/extra/ui/gadgets/buttons/buttons-docs.factor b/basis/ui/gadgets/buttons/buttons-docs.factor
similarity index 82%
rename from extra/ui/gadgets/buttons/buttons-docs.factor
rename to basis/ui/gadgets/buttons/buttons-docs.factor
index 02ddcc3d8a..c4edaac144 100755
--- a/extra/ui/gadgets/buttons/buttons-docs.factor
+++ b/basis/ui/gadgets/buttons/buttons-docs.factor
@@ -5,13 +5,13 @@ IN: ui.gadgets.buttons
 HELP: button
 { $class-description "A button is a " { $link gadget } " which responds to mouse clicks by invoking a quotation."
 $nl
-"A button's appearance can vary depending on the state of the mouse button if the " { $link gadget-interior } " or " { $link gadget-boundary } " slots are set to instances of " { $link button-paint } "."
+"A button's appearance can vary depending on the state of the mouse button if the " { $snippet "interior" } " or " { $snippet "boundary" } " slots are set to instances of " { $link button-paint } "."
 $nl
-"A button can be selected, which is distinct from being pressed. This state is held in the " { $link button-selected? } " slot, and is used by the " { $link <toggle-buttons> } " word to construct a row of buttons for choosing among several alternatives." } ;
+"A button can be selected, which is distinct from being pressed. This state is held in the " { $snippet "selected?" } " slot, and is used by the " { $link <toggle-buttons> } " word to construct a row of buttons for choosing among several alternatives." } ;
 
 HELP: <button>
-{ $values { "gadget" gadget } { "quot" "a quotation with stack effect " { $snippet "( button -- )" } } { "button" "a new " { $link button } } }
-{ $description "Creates a new " { $link button } " which calls the quotation when clicked. The given gadget becomes the button's delegate." } ;
+{ $values { "label" gadget } { "quot" "a quotation with stack effect " { $snippet "( button -- )" } } { "button" "a new " { $link button } } }
+{ $description "Creates a new " { $link button } " which calls the quotation when clicked. The given gadget becomes the button's only child." } ;
 
 HELP: <roll-button>
 { $values { "label" "a label specifier" } { "quot" "a quotation with stack effect " { $snippet "( button -- )" } } { "button" button } }
@@ -28,10 +28,10 @@ HELP: <repeat-button>
 HELP: button-paint
 { $class-description "A class implementing the " { $link draw-boundary } " and " { $link draw-interior } " gneeric words by delegating to an object in one of four slots which depend on the state of the button being drawn:"
     { $list
-        { { $link button-paint-plain } " - the button is inactive" }
-        { { $link button-paint-rollover } " - the button is under the mouse" }
-        { { $link button-paint-pressed } " - the button is under the mouse and a mouse button is held down" }
-        { { $link button-paint-selected } " - the button is selected (see " { $link <toggle-buttons> }  }
+        { { $snippet "plain"    } " - the button is inactive" }
+        { { $snippet "rollover" } " - the button is under the mouse" }
+        { { $snippet "pressed"  } " - the button is under the mouse and a mouse button is held down" }
+        { { $snippet "selected" } " - the button is selected (see " { $link <toggle-buttons> }  }
     }
 "The " { $link <roll-button> } " and " { $link <bevel-button> } " words create " { $link button } " instances with specific " { $link button-paint } "." } ;
 
diff --git a/extra/ui/gadgets/buttons/buttons-tests.factor b/basis/ui/gadgets/buttons/buttons-tests.factor
similarity index 80%
rename from extra/ui/gadgets/buttons/buttons-tests.factor
rename to basis/ui/gadgets/buttons/buttons-tests.factor
index 6c5d757dd4..bdd9ebaf13 100755
--- a/extra/ui/gadgets/buttons/buttons-tests.factor
+++ b/basis/ui/gadgets/buttons/buttons-tests.factor
@@ -1,6 +1,7 @@
-IN: ui.gadgets.buttons.tests
 USING: ui.commands ui.gadgets.buttons ui.gadgets.labels
-ui.gadgets tools.test namespaces sequences kernel models ;
+ui.gadgets tools.test namespaces sequences kernel models
+accessors ;
+IN: ui.gadgets.buttons.tests
 
 TUPLE: foo-gadget ;
 
@@ -15,7 +16,7 @@ TUPLE: foo-gadget ;
 
 T{ foo-gadget } <toolbar> "t" set
 
-[ 2 ] [ "t" get gadget-children length ] unit-test
+[ 2 ] [ "t" get children>> length ] unit-test
 [ "Foo A" ] [ "t" get gadget-child gadget-child label-string ] unit-test
 
 [ ] [
@@ -34,7 +35,7 @@ T{ foo-gadget } <toolbar> "t" set
 \ <checkbox> must-infer
 
 [ 0 ] [
-    "religion" get gadget-child radio-control-value
+    "religion" get gadget-child value>>
 ] unit-test
 
 [ 2 ] [
diff --git a/extra/ui/gadgets/buttons/buttons.factor b/basis/ui/gadgets/buttons/buttons.factor
similarity index 50%
rename from extra/ui/gadgets/buttons/buttons.factor
rename to basis/ui/gadgets/buttons/buttons.factor
index 9910082ebf..e04e385a23 100755
--- a/extra/ui/gadgets/buttons/buttons.factor
+++ b/basis/ui/gadgets/buttons/buttons.factor
@@ -1,14 +1,16 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui.commands ui.gadgets ui.gadgets.borders
-ui.gadgets.labels ui.gadgets.theme
-ui.gadgets.tracks ui.gadgets.packs ui.gadgets.worlds ui.gestures
-ui.render kernel math models namespaces sequences strings
-quotations assocs combinators classes colors classes.tuple
-opengl math.vectors ;
+USING: accessors arrays kernel math models namespaces sequences
+       strings quotations assocs combinators classes colors
+       classes.tuple opengl math.vectors
+       ui.commands ui.gadgets ui.gadgets.borders
+       ui.gadgets.labels ui.gadgets.theme
+       ui.gadgets.tracks ui.gadgets.packs ui.gadgets.worlds ui.gestures
+       ui.render math.geometry.rect ;
+
 IN: ui.gadgets.buttons
 
-TUPLE: button pressed? selected? quot ;
+TUPLE: button < border pressed? selected? quot ;
 
 : buttons-down? ( -- ? )
     hand-buttons get-global empty? not ;
@@ -23,14 +25,13 @@ TUPLE: button pressed? selected? quot ;
     dup mouse-clicked?
     over button-rollover? and
     buttons-down? and
-    over set-button-pressed?
+    over (>>pressed?)
     relayout-1 ;
 
 : if-clicked ( button quot -- )
     >r dup button-update dup button-rollover? r> [ drop ] if ;
 
-: button-clicked ( button -- )
-    dup button-quot if-clicked ;
+: button-clicked ( button -- ) dup quot>> if-clicked ;
 
 button H{
     { T{ button-up } [ button-clicked ] }
@@ -39,23 +40,25 @@ button H{
     { T{ mouse-enter } [ button-update ] }
 } set-gestures
 
-: <button> ( gadget quot -- button )
-    button new
-    [ set-button-quot ] keep
-    [ set-gadget-delegate ] keep ;
+: new-button ( label quot class -- button )
+    [ swap >label ] dip new-border swap >>quot ; inline
+
+: <button> ( label quot -- button )
+    button new-button ;
 
 TUPLE: button-paint plain rollover pressed selected ;
 
 C: <button-paint> button-paint
 
-: find-button [ [ button? ] is? ] find-parent ;
+: find-button ( gadget -- button )
+    [ button? ] find-parent ;
 
 : button-paint ( button paint -- button paint )
     over find-button {
-        { [ dup button-pressed? ] [ drop button-paint-pressed ] }
-        { [ dup button-selected? ] [ drop button-paint-selected ] }
-        { [ dup button-rollover? ] [ drop button-paint-rollover ] }
-        [ drop button-paint-plain ]
+        { [ dup pressed?>> ] [ drop pressed>> ] }
+        { [ dup selected?>> ] [ drop selected>> ] }
+        { [ dup button-rollover? ] [ drop rollover>> ] }
+        [ drop plain>> ]
     } cond ;
 
 M: button-paint draw-interior
@@ -64,27 +67,32 @@ M: button-paint draw-interior
 M: button-paint draw-boundary
     button-paint draw-boundary ;
 
-: roll-button-theme ( button -- )
-    f black <solid> dup f <button-paint>
-    swap set-gadget-boundary ;
+: align-left ( button -- button )
+    { 0 1/2 } >>align ; inline
+
+: roll-button-theme ( button -- button )
+    f black <solid> dup f <button-paint> >>boundary
+    align-left ; inline
 
 : <roll-button> ( label quot -- button )
-    >r >label r>
-    <button> dup roll-button-theme ;
+    <button> roll-button-theme ;
 
-: bevel-button-theme ( gadget -- )
+: <bevel-button-paint> ( -- paint )
     plain-gradient
     rollover-gradient
     pressed-gradient
     selected-gradient
-    <button-paint> over set-gadget-interior
-    faint-boundary ;
+    <button-paint> ;
+
+: bevel-button-theme ( gadget -- gadget )
+    <bevel-button-paint> >>interior
+    { 5 5 } >>size
+    faint-boundary ; inline
 
 : <bevel-button> ( label quot -- button )
-    >r >label 5 <border> r>
-    <button> dup bevel-button-theme ;
+    <button> bevel-button-theme ;
 
-TUPLE: repeat-button ;
+TUPLE: repeat-button < button ;
 
 repeat-button H{
     { T{ drag } [ button-clicked ] }
@@ -93,15 +101,14 @@ repeat-button H{
 : <repeat-button> ( label quot -- button )
     #! Button that calls the quotation every 100ms as long as
     #! the mouse is held down.
-    repeat-button new
-    [ >r <bevel-button> r> set-gadget-delegate ] keep ;
+    repeat-button new-button bevel-button-theme ;
 
 TUPLE: checkmark-paint color ;
 
 C: <checkmark-paint> checkmark-paint
 
 M: checkmark-paint draw-interior
-    checkmark-paint-color gl-color
+    color>> set-color
     origin get [
         rect-dim
         { 0 0 } over gl-line
@@ -114,45 +121,45 @@ M: checkmark-paint draw-interior
     black <solid>
     black <checkmark-paint>
     <button-paint>
-    over set-gadget-interior
+    over (>>interior)
     black <solid>
-    swap set-gadget-boundary ;
+    swap (>>boundary) ;
 
 : <checkmark> ( -- gadget )
     <gadget>
     dup checkmark-theme
-    { 14 14 } over set-gadget-dim ;
+    { 14 14 } over (>>dim) ;
 
 : toggle-model ( model -- )
     [ not ] change-model ;
 
-: checkbox-theme
-    f over set-gadget-interior
-    { 5 5 } over set-pack-gap
-    1/2 swap set-pack-align ;
+: checkbox-theme ( gadget -- gadget )
+    f >>interior
+    { 5 5 } >>gap
+    1/2 >>align ; inline
 
-TUPLE: checkbox ;
+TUPLE: checkbox < button ;
 
 : <checkbox> ( model label -- checkbox )
-    <checkmark>
-    label-on-right
-    over [ toggle-model drop ] curry <button>
-    checkbox construct-control
-    dup checkbox-theme ;
+    <checkmark> label-on-right checkbox-theme
+    [ model>> toggle-model ]
+    checkbox new-button
+        swap >>model
+        align-left ;
 
 M: checkbox model-changed
-    swap model-value over set-button-selected? relayout-1 ;
+    swap value>> over (>>selected?) relayout-1 ;
 
 TUPLE: radio-paint color ;
 
 C: <radio-paint> radio-paint
 
 M: radio-paint draw-interior
-    radio-paint-color gl-color
+    color>> set-color
     origin get { 4 4 } v+ swap rect-dim { 8 8 } v- 12 gl-fill-circle ;
 
 M: radio-paint draw-boundary
-    radio-paint-color gl-color
+    color>> set-color
     origin get { 1 1 } v+ swap rect-dim { 2 2 } v- 12 gl-circle ;
 
 : radio-knob-theme ( gadget -- )
@@ -161,52 +168,54 @@ M: radio-paint draw-boundary
     black <radio-paint>
     black <radio-paint>
     <button-paint>
-    over set-gadget-interior
+    over (>>interior)
     black <radio-paint>
-    swap set-gadget-boundary ;
+    swap (>>boundary) ;
 
 : <radio-knob> ( -- gadget )
     <gadget>
     dup radio-knob-theme
-    { 16 16 } over set-gadget-dim ;
+    { 16 16 } over (>>dim) ;
 
-TUPLE: radio-control value ;
+TUPLE: radio-control < button value ;
 
-: <radio-control> ( value model gadget quot -- control )
-    >r pick [ swap set-control-value ] curry r> call
-    radio-control construct-control
-    tuck set-radio-control-value ; inline
+: <radio-control> ( value model label -- control )
+    [ [ value>> ] keep set-control-value ]
+    radio-control new-button
+        swap >>model
+        swap >>value
+        align-left ; inline
 
 M: radio-control model-changed
-    swap model-value
-    over radio-control-value =
-    over set-button-selected?
+    swap value>>
+    over value>> =
+    over (>>selected?)
     relayout-1 ;
 
-: <radio-controls> ( model assoc quot -- )
-    #! quot has stack effect ( value model label -- )
-    swapd [ swapd call gadget, ] 2curry assoc-each ; inline
+: <radio-controls> ( parent model assoc quot -- parent )
+  #! quot has stack effect ( value model label -- )
+  swapd [ swapd call add-gadget ] 2curry assoc-each ; inline
 
-: radio-button-theme
-    { 5 5 } over set-pack-gap 1/2 swap set-pack-align ;
+: radio-button-theme ( gadget -- gadget )
+    { 5 5 } >>gap
+    1/2 >>align ; inline
 
 : <radio-button> ( value model label -- gadget )
-    <radio-knob> label-on-right
-    [ <button> ] <radio-control>
-    dup radio-button-theme ;
-
-: radio-buttons-theme
-    { 5 5 } swap set-pack-gap ;
+    <radio-knob> label-on-right radio-button-theme <radio-control> ;
 
 : <radio-buttons> ( model assoc -- gadget )
-    [ [ <radio-button> ] <radio-controls> ] make-filled-pile
-    dup radio-buttons-theme ;
+  <filled-pile>
+    -rot
+    [ <radio-button> ] <radio-controls>
+  { 5 5 } >>gap ;
 
 : <toggle-button> ( value model label -- gadget )
-    [ <bevel-button> ] <radio-control> ;
+    <radio-control> bevel-button-theme ;
 
 : <toggle-buttons> ( model assoc -- gadget )
-    [ [ <toggle-button> ] <radio-controls> ] make-shelf ;
+  <shelf>
+    -rot
+    [ <toggle-button> ] <radio-controls> ;
 
 : command-button-quot ( target command -- quot )
     [ invoke-command drop ] 2curry ;
@@ -218,9 +227,7 @@ M: radio-control model-changed
     <bevel-button> ;
 
 : <toolbar> ( target -- toolbar )
-    [
-        "toolbar" over class command-map swap
-        [ -rot <command-button> gadget, ] curry assoc-each
-    ] make-shelf ;
-
-: toolbar, ( -- ) g <toolbar> f track, ;
+  <shelf>
+    swap
+    "toolbar" over class command-map commands>> swap
+    [ -rot <command-button> add-gadget ] curry assoc-each ;
diff --git a/extra/ui/gadgets/buttons/summary.txt b/basis/ui/gadgets/buttons/summary.txt
similarity index 100%
rename from extra/ui/gadgets/buttons/summary.txt
rename to basis/ui/gadgets/buttons/summary.txt
diff --git a/extra/ui/gadgets/books/authors.txt b/basis/ui/gadgets/canvas/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/ui/gadgets/books/authors.txt
rename to basis/ui/gadgets/canvas/authors.txt
diff --git a/basis/ui/gadgets/canvas/canvas-tests.factor b/basis/ui/gadgets/canvas/canvas-tests.factor
new file mode 100755
index 0000000000..bc87064c92
--- /dev/null
+++ b/basis/ui/gadgets/canvas/canvas-tests.factor
@@ -0,0 +1,4 @@
+IN: ui.gadgets.canvas.tests
+USING: ui.gadgets.canvas tools.test kernel ;
+
+{ 1 0 } [ [ drop ] draw-canvas ] must-infer-as
diff --git a/extra/ui/gadgets/canvas/canvas.factor b/basis/ui/gadgets/canvas/canvas.factor
old mode 100644
new mode 100755
similarity index 57%
rename from extra/ui/gadgets/canvas/canvas.factor
rename to basis/ui/gadgets/canvas/canvas.factor
index 15df44fda4..4ff7519a85
--- a/extra/ui/gadgets/canvas/canvas.factor
+++ b/basis/ui/gadgets/canvas/canvas.factor
@@ -1,27 +1,26 @@
 ! Copyright (C) 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: ui.backend ui.gadgets ui.gadgets.theme ui.gadgets.lib
+USING: ui.backend ui.gadgets ui.gadgets.theme
 ui.gadgets.worlds ui.render opengl opengl.gl kernel namespaces
-classes.tuple colors ;
+classes.tuple colors accessors ;
 IN: ui.gadgets.canvas
 
-TUPLE: canvas dlist ;
+TUPLE: canvas < gadget dlist ;
 
-: <canvas> ( -- canvas )
-    canvas construct-gadget
-    dup black solid-interior ;
+: new-canvas ( class -- canvas )
+    new-gadget black solid-interior ; inline
 
 : delete-canvas-dlist ( canvas -- )
-    dup find-gl-context
-    dup canvas-dlist [ delete-dlist ] when*
-    f swap set-canvas-dlist ;
+    [ find-gl-context ]
+    [ dlist>> [ delete-dlist ] when* ]
+    [ f >>dlist drop ] tri ;
 
 : make-canvas-dlist ( canvas quot -- dlist )
-    over >r GL_COMPILE swap make-dlist dup r>
-    set-canvas-dlist ;
+    [ drop ] [ GL_COMPILE swap make-dlist ] 2bi
+    [ >>dlist drop ] keep ; inline
 
 : cache-canvas-dlist ( canvas quot -- dlist )
-    over canvas-dlist dup
+    over dlist>> dup
     [ 2nip ] [ drop make-canvas-dlist ] if ; inline
 
 : draw-canvas ( canvas quot -- )
diff --git a/extra/ui/gadgets/borders/authors.txt b/basis/ui/gadgets/editors/authors.txt
similarity index 100%
rename from extra/ui/gadgets/borders/authors.txt
rename to basis/ui/gadgets/editors/authors.txt
diff --git a/extra/ui/gadgets/editors/editors-docs.factor b/basis/ui/gadgets/editors/editors-docs.factor
similarity index 77%
rename from extra/ui/gadgets/editors/editors-docs.factor
rename to basis/ui/gadgets/editors/editors-docs.factor
index 42d300d330..b691668206 100755
--- a/extra/ui/gadgets/editors/editors-docs.factor
+++ b/basis/ui/gadgets/editors/editors-docs.factor
@@ -7,32 +7,34 @@ HELP: editor
 $nl
 "Editors have the following slots:"
 { $list
-    { { $link editor-font } " - a font specifier." }
-    { { $link editor-color } " - text color specifier." }
-    { { $link editor-caret-color } " - caret color specifier." }
-    { { $link editor-selection-color } " - selection background color specifier." }
-    { { $link editor-caret } " - a model storing a line/column pair." }
-    { { $link editor-mark } " - a model storing a line/column pair. If there is no selection, the mark is equal to the caret, otherwise the mark is located at the opposite end of the selection from the caret." }
-    { { $link editor-focused? } " - a boolean." }
+    { { $snippet "font" } " - a font specifier." }
+    { { $snippet "color" } " - text color specifier." }
+    { { $snippet "caret-color" } " - caret color specifier." }
+    { { $snippet "selection-color" } " - selection background color specifier." }
+    { { $snippet "caret" } " - a model storing a line/column pair." }
+    { { $snippet "mark" } " - a model storing a line/column pair. If there is no selection, the mark is equal to the caret, otherwise the mark is located at the opposite end of the selection from the caret." }
+    { { $snippet "focused?" } " - a boolean." }
 } } ;
 
 HELP: <editor>
 { $values { "editor" "a new " { $link editor } } }
 { $description "Creates a new " { $link editor } " with an empty document." } ;
 
-HELP: editor-caret ( editor -- caret )
-{ $values { "editor" editor } { "caret" model } }
-{ $description "Outputs a " { $link model } " holding the current caret location." } ;
+! 'editor-caret' is now an old accessor, but it's documented as a word here. Maybe move this description somewhere else.
 
-{ editor-caret editor-caret* editor-mark editor-mark* } related-words
+! HELP: editor-caret ( editor -- caret )
+! { $values { "editor" editor } { "caret" model } }
+! { $description "Outputs a " { $link model } " holding the current caret location." } ;
+
+{ editor-caret* editor-mark* } related-words
 
 HELP: editor-caret*
 { $values { "editor" editor } { "loc" "a pair of integers" } }
 { $description "Outputs the current caret location as a line/column number pair." } ;
 
-HELP: editor-mark ( editor -- mark )
-{ $values { "editor" editor } { "mark" model } }
-{ $description "Outputs a " { $link model } " holding the current mark location." } ;
+! HELP: editor-mark ( editor -- mark )
+! { $values { "editor" editor } { "mark" model } }
+! { $description "Outputs a " { $link model } " holding the current mark location." } ;
 
 HELP: editor-mark*
 { $values { "editor" editor } { "loc" "a pair of integers" } }
@@ -74,9 +76,7 @@ HELP: set-editor-string
 
 ARTICLE: "gadgets-editors-selection" "The caret and mark"
 "If there is no selection, the caret and the mark are at the same location; otherwise the mark delimits the end-point of the selection opposite the caret."
-{ $subsection editor-caret }
 { $subsection editor-caret* }
-{ $subsection editor-mark }
 { $subsection editor-mark* }
 { $subsection change-caret }
 { $subsection change-caret&mark }
diff --git a/extra/ui/gadgets/editors/editors-tests.factor b/basis/ui/gadgets/editors/editors-tests.factor
similarity index 75%
rename from extra/ui/gadgets/editors/editors-tests.factor
rename to basis/ui/gadgets/editors/editors-tests.factor
index f3a6b9fd5d..274d62ea46 100755
--- a/extra/ui/gadgets/editors/editors-tests.factor
+++ b/basis/ui/gadgets/editors/editors-tests.factor
@@ -1,6 +1,8 @@
-USING: ui.gadgets.editors tools.test kernel io io.streams.plain
-definitions namespaces ui.gadgets ui.gadgets.grids prettyprint
-documents ui.gestures tools.test.ui models ;
+USING: accessors ui.gadgets.editors tools.test kernel io
+io.streams.plain definitions namespaces ui.gadgets
+ui.gadgets.grids prettyprint documents ui.gestures tools.test.ui
+models ;
+IN: ui.gadgets.editors.tests
 
 [ "foo bar" ] [
     <editor> "editor" set
@@ -33,7 +35,7 @@ documents ui.gestures tools.test.ui models ;
     <editor> "editor" set
     "editor" get [
         "bar\nbaz quux" "editor" get set-editor-string
-        { 0 3 } "editor" get editor-caret set-model
+        { 0 3 } "editor" get caret>> set-model
         "editor" get select-word
         "editor" get gadget-selection
     ] with-grafted-gadget
@@ -44,5 +46,5 @@ documents ui.gestures tools.test.ui models ;
 "hello" <model> <field> "field" set
 
 "field" get [
-    [ "hello" ] [ "field" get field-model model-value ] unit-test
+    [ "hello" ] [ "field" get field-model>> value>> ] unit-test
 ] with-grafted-gadget
diff --git a/extra/ui/gadgets/editors/editors.factor b/basis/ui/gadgets/editors/editors.factor
similarity index 61%
rename from extra/ui/gadgets/editors/editors.factor
rename to basis/ui/gadgets/editors/editors.factor
index c4a808bb2d..8142297318 100755
--- a/extra/ui/gadgets/editors/editors.factor
+++ b/basis/ui/gadgets/editors/editors.factor
@@ -1,91 +1,87 @@
-! Copyright (C) 2006, 2007 Slava Pestov
+! Copyright (C) 2006, 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays documents ui.clipboards ui.commands ui.gadgets
-ui.gadgets.borders ui.gadgets.buttons ui.gadgets.labels
-ui.gadgets.scrollers ui.gadgets.theme ui.render ui.gestures io
-kernel math models namespaces opengl opengl.gl sequences strings
-io.styles math.vectors sorting colors combinators assocs
-math.order ;
+USING: accessors arrays documents io kernel math models
+namespaces opengl opengl.gl sequences strings io.styles
+math.vectors sorting colors combinators assocs math.order
+ui.clipboards ui.commands ui.gadgets ui.gadgets.borders
+ui.gadgets.buttons ui.gadgets.labels ui.gadgets.scrollers
+ui.gadgets.theme ui.gadgets.wrappers ui.render ui.gestures
+math.geometry.rect ;
 IN: ui.gadgets.editors
 
-TUPLE: editor
-self
+TUPLE: editor < gadget
 font color caret-color selection-color
 caret mark
 focused? ;
 
 : <loc> ( -- loc ) { 0 0 } <model> ;
 
-: init-editor-locs ( editor -- )
-    <loc> over set-editor-caret
-    <loc> swap set-editor-mark ;
+: init-editor-locs ( editor -- editor )
+    <loc> >>caret
+    <loc> >>mark ; inline
 
-: editor-theme ( editor -- )
-    black over set-editor-color
-    red over set-editor-caret-color
-    selection-color over set-editor-selection-color
-    monospace-font swap set-editor-font ;
+: editor-theme ( editor -- editor )
+    black >>color
+    red >>caret-color
+    selection-color >>selection-color
+    monospace-font >>font ; inline
+
+: new-editor ( class -- editor )
+    new-gadget
+        <document> >>model
+        init-editor-locs
+        editor-theme ; inline
 
 : <editor> ( -- editor )
-    <document> <gadget> editor construct-control
-    dup dup set-editor-self
-    dup init-editor-locs
-    dup editor-theme ;
-
-: field-theme ( gadget -- )
-    gray <solid> swap set-gadget-boundary ;
-
-: construct-editor ( object class -- tuple )
-    >r { set-gadget-delegate } r> construct
-    dup dup set-editor-self ; inline
+    editor new-editor ;
 
 : activate-editor-model ( editor model -- )
     2dup add-connection
     dup activate-model
-    swap gadget-model add-loc ;
+    swap model>> add-loc ;
 
 : deactivate-editor-model ( editor model -- )
     2dup remove-connection
     dup deactivate-model
-    swap gadget-model remove-loc ;
+    swap model>> remove-loc ;
 
 M: editor graft*
     dup
-    dup editor-caret activate-editor-model
-    dup editor-mark activate-editor-model ;
+    dup caret>> activate-editor-model
+    dup mark>> activate-editor-model ;
 
 M: editor ungraft*
     dup
-    dup editor-caret deactivate-editor-model
-    dup editor-mark deactivate-editor-model ;
+    dup caret>> deactivate-editor-model
+    dup mark>> deactivate-editor-model ;
 
-: editor-caret* ( editor -- loc ) editor-caret model-value ;
+: editor-caret* ( editor -- loc ) caret>> value>> ;
 
-: editor-mark* ( editor -- loc ) editor-mark model-value ;
+: editor-mark* ( editor -- loc ) mark>> value>> ;
 
 : set-caret ( loc editor -- )
-    [ gadget-model validate-loc ] keep
-    editor-caret set-model ;
+    [ model>> validate-loc ] keep
+    caret>> set-model ;
 
 : change-caret ( editor quot -- )
-    over >r >r dup editor-caret* swap gadget-model r> call r>
+    over >r >r dup editor-caret* swap model>> r> call r>
     set-caret ; inline
 
 : mark>caret ( editor -- )
-    dup editor-caret* swap editor-mark set-model ;
+    dup editor-caret* swap mark>> set-model ;
 
 : change-caret&mark ( editor quot -- )
     over >r change-caret r> mark>caret ; inline
 
 : editor-line ( n editor -- str ) control-value nth ;
 
-: editor-font* ( editor -- font ) editor-font open-font ;
+: editor-font* ( editor -- font ) font>> open-font ;
 
 : line-height ( editor -- n )
     editor-font* "" string-height ;
 
 : y>line ( y editor -- line# )
-    [ line-height / >fixnum ] keep gadget-model validate-line ;
+    [ line-height / >fixnum ] keep model>> validate-line ;
 
 : point>loc ( point editor -- loc )
     [
@@ -100,11 +96,9 @@ M: editor ungraft*
 : click-loc ( editor model -- )
     >r clicked-loc r> set-model ;
 
-: focus-editor ( editor -- )
-    t over set-editor-focused? relayout-1 ;
+: focus-editor ( editor -- ) t over (>>focused?) relayout-1 ;
 
-: unfocus-editor ( editor -- )
-    f over set-editor-focused? relayout-1 ;
+: unfocus-editor ( editor -- ) f over (>>focused?) relayout-1 ;
 
 : (offset>x) ( font col# str -- x )
     swap head-slice string-width ;
@@ -125,15 +119,15 @@ M: editor ungraft*
     line-height 0 swap 2array ;
 
 : scroll>caret ( editor -- )
-    dup gadget-graft-state second [
+    dup graft-state>> second [
         dup caret-loc over caret-dim { 1 0 } v+ <rect>
         over scroll>rect
     ] when drop ;
 
 : draw-caret ( -- )
-    editor get editor-focused? [
+    editor get focused?>> [
         editor get
-        dup editor-caret-color gl-color
+        dup caret-color>> set-color
         dup caret-loc origin get v+
         swap caret-dim over v+
         [ { 0.5 -0.5 } v+ ] bi@ gl-line
@@ -146,7 +140,7 @@ M: editor ungraft*
     line-translation gl-translate ;
 
 : draw-line ( editor str -- )
-    >r editor-font r> { 0 0 } draw-string ;
+    >r font>> r> { 0 0 } draw-string ;
 
 : first-visible-line ( editor -- n )
     clip get rect-loc second origin get second -
@@ -161,7 +155,7 @@ M: editor ungraft*
         swap
         dup first-visible-line \ first-visible-line set
         dup last-visible-line \ last-visible-line set
-        dup gadget-model document set
+        dup model>> document set
         editor set
         call
     ] with-scope ; inline
@@ -177,7 +171,7 @@ M: editor ungraft*
 
 : draw-lines ( -- )
     \ first-visible-line get [
-        editor get dup editor-color gl-color
+        editor get dup color>> set-color
         dup visible-lines
         [ draw-line 1 translate-lines ] with each
     ] with-editor-translation ;
@@ -196,7 +190,7 @@ M: editor ungraft*
     (draw-selection) ;
 
 : draw-selection ( -- )
-    editor get editor-selection-color gl-color
+    editor get selection-color>> set-color
     editor get selection-start/end
     over first [
         2dup [
@@ -211,44 +205,44 @@ M: editor draw-gadget*
 M: editor pref-dim*
     dup editor-font* swap control-value text-dim ;
 
-: contents-changed
-    editor-self swap
-    over editor-caret [ over validate-loc ] (change-model)
-    over editor-mark [ over validate-loc ] (change-model)
+: contents-changed ( model editor -- )
+    swap
+    over caret>> [ over validate-loc ] (change-model)
+    over mark>> [ over validate-loc ] (change-model)
     drop relayout ;
 
-: caret/mark-changed
-    nip editor-self dup relayout-1 scroll>caret ;
+: caret/mark-changed ( model editor -- )
+    nip [ relayout-1 ] [ scroll>caret ] bi ;
 
 M: editor model-changed
     {
-        { [ 2dup gadget-model eq? ] [ contents-changed ] }
-        { [ 2dup editor-caret eq? ] [ caret/mark-changed ] }
-        { [ 2dup editor-mark eq? ] [ caret/mark-changed ] }
+        { [ 2dup model>> eq? ] [ contents-changed ] }
+        { [ 2dup caret>> eq? ] [ caret/mark-changed ] }
+        { [ 2dup mark>> eq? ] [ caret/mark-changed ] }
     } cond ;
 
 M: editor gadget-selection?
     selection-start/end = not ;
 
 M: editor gadget-selection
-    [ selection-start/end ] keep gadget-model doc-range ;
+    [ selection-start/end ] keep model>> doc-range ;
 
 : remove-selection ( editor -- )
-    [ selection-start/end ] keep gadget-model remove-doc-range ;
+    [ selection-start/end ] keep model>> remove-doc-range ;
 
 M: editor user-input*
-    [ selection-start/end ] keep gadget-model set-doc-range t ;
+    [ selection-start/end ] keep model>> set-doc-range t ;
 
 : editor-string ( editor -- string )
-    gadget-model doc-string ;
+    model>> doc-string ;
 
 : set-editor-string ( string editor -- )
-    gadget-model set-doc-string ;
+    model>> set-doc-string ;
 
 M: editor gadget-text* editor-string % ;
 
 : extend-selection ( editor -- )
-    dup request-focus dup editor-caret click-loc ;
+    dup request-focus dup caret>> click-loc ;
 
 : mouse-elt ( -- element )
     hand-click# get {
@@ -261,12 +255,12 @@ M: editor gadget-text* editor-string % ;
 
 : drag-selection-caret ( loc editor element -- loc )
     >r [ drag-direction? ] 2keep
-    gadget-model
+    model>>
     r> prev/next-elt ? ;
 
 : drag-selection-mark ( loc editor element -- loc )
     >r [ drag-direction? not ] 2keep
-    nip dup editor-mark* swap gadget-model
+    nip dup editor-mark* swap model>>
     r> prev/next-elt ? ;
 
 : drag-caret&mark ( editor -- caret mark )
@@ -276,8 +270,8 @@ M: editor gadget-text* editor-string % ;
 
 : drag-selection ( editor -- )
     dup drag-caret&mark
-    pick editor-mark set-model
-    swap editor-caret set-model ;
+    pick mark>> set-model
+    swap caret>> set-model ;
 
 : editor-cut ( editor clipboard -- )
     dupd gadget-copy remove-selection ;
@@ -286,8 +280,8 @@ M: editor gadget-text* editor-string % ;
     over gadget-selection? [
         drop nip remove-selection
     ] [
-        over >r >r dup editor-caret* swap gadget-model
-        r> call r> gadget-model remove-doc-range
+        over >r >r dup editor-caret* swap model>>
+        r> call r> model>> remove-doc-range
     ] if ; inline
 
 : editor-delete ( editor elt -- )
@@ -309,11 +303,11 @@ M: editor gadget-text* editor-string % ;
     dupd editor-select-next mark>caret ;
 
 : editor-select ( from to editor -- )
-    tuck editor-caret set-model editor-mark set-model ;
+    tuck caret>> set-model mark>> set-model ;
 
 : select-elt ( editor elt -- )
     over >r
-    >r dup editor-caret* swap gadget-model r> prev/next-elt
+    >r dup editor-caret* swap model>> r> prev/next-elt
     r> editor-select ;
 
 : start-of-document ( editor -- ) T{ doc-elt } editor-prev ;
@@ -322,22 +316,28 @@ M: editor gadget-text* editor-string % ;
 
 : position-caret ( editor -- )
     mouse-elt dup T{ one-char-elt } =
-    [ drop dup extend-selection dup editor-mark click-loc ]
+    [ drop dup extend-selection dup mark>> click-loc ]
     [ select-elt ] if ;
 
-: insert-newline "\n" swap user-input ;
+: insert-newline ( editor -- ) "\n" swap user-input ;
 
-: delete-next-character T{ char-elt } editor-delete ;
+: delete-next-character ( editor -- ) 
+    T{ char-elt } editor-delete ;
 
-: delete-previous-character T{ char-elt } editor-backspace ;
+: delete-previous-character ( editor -- ) 
+    T{ char-elt } editor-backspace ;
 
-: delete-previous-word T{ word-elt } editor-delete ;
+: delete-previous-word ( editor -- ) 
+    T{ word-elt } editor-delete ;
 
-: delete-next-word T{ word-elt } editor-backspace ;
+: delete-next-word ( editor -- ) 
+    T{ word-elt } editor-backspace ;
 
-: delete-to-start-of-line T{ one-line-elt } editor-delete ;
+: delete-to-start-of-line ( editor -- ) 
+    T{ one-line-elt } editor-delete ;
 
-: delete-to-end-of-line T{ one-line-elt } editor-backspace ;
+: delete-to-end-of-line ( editor -- ) 
+    T{ one-line-elt } editor-backspace ;
 
 editor "general" f {
     { T{ key-down f f "DELETE" } delete-next-character }
@@ -350,11 +350,11 @@ editor "general" f {
     { T{ key-down f { A+ } "BACKSPACE" } delete-to-end-of-line }
 } define-command-map
 
-: paste clipboard get paste-clipboard ;
+: paste ( editor -- ) clipboard get paste-clipboard ;
 
-: paste-selection selection get paste-clipboard ;
+: paste-selection ( editor -- ) selection get paste-clipboard ;
 
-: cut clipboard get editor-cut ;
+: cut ( editor -- ) clipboard get editor-cut ;
 
 editor "clipboard" f {
     { T{ paste-action } paste }
@@ -380,17 +380,17 @@ editor "clipboard" f {
         T{ char-elt } editor-next
     ] if ;
 
-: previous-line T{ line-elt } editor-prev ;
+: previous-line ( editor -- ) T{ line-elt } editor-prev ;
 
-: next-line T{ line-elt } editor-next ;
+: next-line ( editor -- ) T{ line-elt } editor-next ;
 
-: previous-word T{ word-elt } editor-prev ;
+: previous-word ( editor -- ) T{ word-elt } editor-prev ;
 
-: next-word T{ word-elt } editor-next ;
+: next-word ( editor -- ) T{ word-elt } editor-next ;
 
-: start-of-line T{ one-line-elt } editor-prev ;
+: start-of-line ( editor -- ) T{ one-line-elt } editor-prev ;
 
-: end-of-line T{ one-line-elt } editor-next ;
+: end-of-line ( editor -- ) T{ one-line-elt } editor-next ;
 
 editor "caret-motion" f {
     { T{ button-down } position-caret }
@@ -406,36 +406,46 @@ editor "caret-motion" f {
     { T{ key-down f { C+ } "END" } end-of-document }
 } define-command-map
 
-: select-all T{ doc-elt } select-elt ;
+: select-all ( editor -- ) T{ doc-elt } select-elt ;
 
-: select-line T{ one-line-elt } select-elt ;
+: select-line ( editor -- ) T{ one-line-elt } select-elt ;
 
-: select-word T{ one-word-elt } select-elt ;
+: select-word ( editor -- ) T{ one-word-elt } select-elt ;
 
 : selected-word ( editor -- string )
     dup gadget-selection?
     [ dup select-word ] unless
     gadget-selection ;
 
-: select-previous-character T{ char-elt } editor-select-prev ;
+: select-previous-character ( editor -- ) 
+    T{ char-elt } editor-select-prev ;
 
-: select-next-character T{ char-elt } editor-select-next ;
+: select-next-character ( editor -- ) 
+    T{ char-elt } editor-select-next ;
 
-: select-previous-line T{ line-elt } editor-select-prev ;
+: select-previous-line ( editor -- ) 
+    T{ line-elt } editor-select-prev ;
 
-: select-next-line T{ line-elt } editor-select-next ;
+: select-next-line ( editor -- ) 
+    T{ line-elt } editor-select-next ;
 
-: select-previous-word T{ word-elt } editor-select-prev ;
+: select-previous-word ( editor -- ) 
+    T{ word-elt } editor-select-prev ;
 
-: select-next-word T{ word-elt } editor-select-next ;
+: select-next-word ( editor -- ) 
+    T{ word-elt } editor-select-next ;
 
-: select-start-of-line T{ one-line-elt } editor-select-prev ;
+: select-start-of-line ( editor -- ) 
+    T{ one-line-elt } editor-select-prev ;
 
-: select-end-of-line T{ one-line-elt } editor-select-next ;
+: select-end-of-line ( editor -- ) 
+    T{ one-line-elt } editor-select-next ;
 
-: select-start-of-document T{ doc-elt } editor-select-prev ;
+: select-start-of-document ( editor -- ) 
+    T{ doc-elt } editor-select-prev ;
 
-: select-end-of-document T{ doc-elt } editor-select-next ;
+: select-end-of-document ( editor -- ) 
+    T{ doc-elt } editor-select-next ;
 
 editor "selection" f {
     { T{ button-down f { S+ } } extend-selection }
@@ -458,10 +468,10 @@ editor "selection" f {
 } define-command-map
 
 ! Multi-line editors
-TUPLE: multiline-editor ;
+TUPLE: multiline-editor < editor ;
 
 : <multiline-editor> ( -- editor )
-    <editor> multiline-editor construct-editor ;
+    multiline-editor new-editor ;
 
 multiline-editor "general" f {
     { T{ key-down f f "RET" } insert-newline }
@@ -469,33 +479,34 @@ multiline-editor "general" f {
     { T{ key-down f f "ENTER" } insert-newline }
 } define-command-map
 
-TUPLE: source-editor ;
+TUPLE: source-editor < multiline-editor ;
 
 : <source-editor> ( -- editor )
-    <multiline-editor> source-editor construct-editor ;
+    source-editor new-editor ;
 
-! Fields are like editors except they edit an external model
-TUPLE: field model editor ;
+! Fields wrap an editor and edit an external model
+TUPLE: field < wrapper field-model editor ;
+
+: field-theme ( gadget -- gadget )
+    gray <solid> >>boundary ; inline
 
 : <field-border> ( gadget -- border )
     2 <border>
-    { 1 0 } over set-border-fill
-    dup field-theme ;
+        { 1 0 } >>fill
+        field-theme ;
 
 : <field> ( model -- gadget )
-    <editor> dup <field-border>
-    { set-field-model set-field-editor set-gadget-delegate }
-    field construct ;
+    <editor> dup <field-border> field new-wrapper
+        swap >>editor
+        swap >>field-model ;
 
 M: field graft*
-    dup field-model model-value
-    over field-editor set-editor-string
-    dup field-editor gadget-model add-connection ;
+    [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
+    [ dup editor>> model>> add-connection ]
+    bi ;
 
 M: field ungraft*
-    dup field-editor gadget-model remove-connection ;
+    dup editor>> model>> remove-connection ;
 
 M: field model-changed
-    nip
-    dup field-editor editor-string
-    swap field-model set-model ;
+    nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
diff --git a/extra/ui/gadgets/editors/summary.txt b/basis/ui/gadgets/editors/summary.txt
similarity index 100%
rename from extra/ui/gadgets/editors/summary.txt
rename to basis/ui/gadgets/editors/summary.txt
diff --git a/extra/ui/gadgets/buttons/authors.txt b/basis/ui/gadgets/frames/authors.txt
similarity index 100%
rename from extra/ui/gadgets/buttons/authors.txt
rename to basis/ui/gadgets/frames/authors.txt
diff --git a/basis/ui/gadgets/frames/frames-docs.factor b/basis/ui/gadgets/frames/frames-docs.factor
new file mode 100755
index 0000000000..36c7feed97
--- /dev/null
+++ b/basis/ui/gadgets/frames/frames-docs.factor
@@ -0,0 +1,46 @@
+USING: help.syntax help.markup ui.gadgets kernel arrays
+quotations classes.tuple ui.gadgets.grids ;
+IN: ui.gadgets.frames
+
+ARTICLE: "ui-frame-layout" "Frame layouts"
+"Frames resemble " { $link "ui-grid-layout" } " except the size of grid is fixed at 3x3, and the center gadget fills up any available space. Because frames inherit from grids, grid layout words can be used to add and remove children."
+{ $subsection frame }
+"Creating empty frames:"
+{ $subsection <frame> }
+"A set of mnemonic words for the positions on a frame's 3x3 grid; these words push values which may be passed to " { $link grid-add } ":"
+{ $subsection @center }
+{ $subsection @left }
+{ $subsection @right }
+{ $subsection @top }
+{ $subsection @bottom }
+{ $subsection @top-left }
+{ $subsection @top-right }
+{ $subsection @bottom-left }
+{ $subsection @bottom-right } ;
+
+: $ui-frame-constant ( element -- )
+    drop
+    { $description "Symbolic constant for a common input to " { $link grid-add } "." } print-element ;
+
+HELP: @center $ui-frame-constant ;
+HELP: @left $ui-frame-constant ;
+HELP: @right $ui-frame-constant ;
+HELP: @top $ui-frame-constant ;
+HELP: @bottom $ui-frame-constant ;
+HELP: @top-left $ui-frame-constant ;
+HELP: @top-right $ui-frame-constant ;
+HELP: @bottom-left $ui-frame-constant ;
+HELP: @bottom-right $ui-frame-constant ;
+
+HELP: frame
+{ $class-description "A frame is a gadget which lays out its children in a 3x3 grid. If the frame is enlarged past its preferred size, the center gadget fills up available room."
+$nl
+"Frames are constructed by calling " { $link <frame> } " and since they inherit from " { $link grid } ", children can be managed with " { $link grid-add } " and " { $link grid-remove } "." } ;
+
+HELP: <frame>
+{ $values { "frame" frame } }
+{ $description "Creates a new " { $link frame } " for laying out gadgets in a 3x3 grid." } ;
+
+{ grid frame } related-words
+
+ABOUT: "ui-frame-layout"
diff --git a/extra/ui/gadgets/frames/frames-tests.factor b/basis/ui/gadgets/frames/frames-tests.factor
similarity index 100%
rename from extra/ui/gadgets/frames/frames-tests.factor
rename to basis/ui/gadgets/frames/frames-tests.factor
diff --git a/extra/ui/gadgets/frames/frames.factor b/basis/ui/gadgets/frames/frames.factor
similarity index 64%
rename from extra/ui/gadgets/frames/frames.factor
rename to basis/ui/gadgets/frames/frames.factor
index 28fefbe1ae..c210d1b7e2 100644
--- a/extra/ui/gadgets/frames/frames.factor
+++ b/basis/ui/gadgets/frames/frames.factor
@@ -1,14 +1,15 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays generic kernel math namespaces sequences words
-splitting math.vectors ui.gadgets.grids ui.gadgets ;
+splitting grouping math.vectors ui.gadgets.grids ui.gadgets
+math.geometry.rect ;
 IN: ui.gadgets.frames
 
 ! A frame arranges gadgets in a 3x3 grid, where the center
 ! gadgets gets left-over space.
-TUPLE: frame ;
+TUPLE: frame < grid ;
 
-: <frame-grid> 9 [ drop <gadget> ] map 3 group ;
+: <frame-grid> ( -- grid ) 9 [ <gadget> ] replicate 3 group ;
 
 : @center 1 1 ;
 : @left 0 1 ;
@@ -21,9 +22,11 @@ TUPLE: frame ;
 : @bottom-left 0 2 ;
 : @bottom-right 2 2 ;
 
+: new-frame ( class -- frame )
+    <frame-grid> swap new-grid ; inline
+
 : <frame> ( -- frame )
-    frame new
-    <frame-grid> <grid> over set-gadget-delegate ;
+    frame new-frame ;
 
 : (fill-center) ( vec n -- )
     over first pick third v+ [v-] 1 rot set-nth ;
@@ -35,12 +38,3 @@ M: frame layout*
     dup compute-grid
     [ rot rect-dim fill-center ] 3keep
     grid-layout ;
-
-: make-frame ( quot -- frame )
-    <frame> make-gadget ; inline
-
-: build-frame ( tuple quot -- tuple )
-    <frame> build-gadget ; inline
-
-: frame, ( gadget i j -- )
-    \ make-gadget get -rot grid-add ;
diff --git a/extra/ui/gadgets/frames/summary.txt b/basis/ui/gadgets/frames/summary.txt
similarity index 100%
rename from extra/ui/gadgets/frames/summary.txt
rename to basis/ui/gadgets/frames/summary.txt
diff --git a/extra/ui/gadgets/gadgets-docs.factor b/basis/ui/gadgets/gadgets-docs.factor
similarity index 58%
rename from extra/ui/gadgets/gadgets-docs.factor
rename to basis/ui/gadgets/gadgets-docs.factor
index 018d1f1f86..394841c599 100755
--- a/extra/ui/gadgets/gadgets-docs.factor
+++ b/basis/ui/gadgets/gadgets-docs.factor
@@ -1,72 +1,20 @@
 USING: help.markup help.syntax opengl kernel strings
-classes.tuple classes quotations models ;
+       classes.tuple classes quotations models math.geometry.rect ;
 IN: ui.gadgets
 
-HELP: rect
-{ $class-description "A rectangle with the following slots:"
-    { $list
-        { { $link rect-loc } " - the top-left corner of the rectangle as an x/y pair" }
-        { { $link rect-dim } " - the dimensions of the rectangle as a width/height pair" }
-    }
-    "Rectangles are constructed by calling " { $link <rect> } " and " { $link <extent-rect> } "."
-} ;
-
-HELP: <rect> ( loc dim -- rect )
-{ $values { "loc" "a pair of integers" } { "dim" "a pair of integers" } { "rect" "a new " { $link rect } } }
-{ $description "Creates a new rectangle with the specified top-left location and dimensions." } ;
-
-{ <zero-rect> <rect> <extent-rect> } related-words
-
-HELP: set-rect-dim ( dim rect -- )
-{ $values { "dim" "a pair of integers" } { "rect" rect } }
-{ $description "Modifies the dimensions of a rectangle. To resize a gadget, use " { $link set-gadget-dim } " or " { $link set-layout-dim } " instead." }
-{ $side-effects "rect" } ;
-
-HELP: rect-bounds
-{ $values { "rect" rect } { "loc" "a pair of integers" } { "dim" "a pair of integers" } }
-{ $description "Outputs the location and dimensions of a rectangle." } ;
-
-{ rect-bounds rect-extent } related-words
-
-HELP: <extent-rect> ( loc ext -- rect )
-{ $values { "loc" "a pair of integers" } { "ext" "a pair of integers" } { "rect" "a new " { $link rect } } }
-{ $description "Creates a new rectangle with the specified top-left and bottom-right corner locations." } ;
-
-HELP: rect-extent
-{ $values { "rect" rect } { "loc" "a pair of integers" } { "ext" "a pair of integers" } }
-{ $description "Outputs the location of the top-left and bottom-right corners of a rectangle." } ;
-
-HELP: offset-rect
-{ $values { "rect" rect } { "loc" "a pair of integers" } { "newrect" "a new " { $link rect } } }
-{ $description "Creates a new rectangle with the same dimensions, and top-left corner translated by " { $snippet "loc" } "." } ;
-
-HELP: rect-intersect
-{ $values { "rect1" rect } { "rect2" rect } { "newrect" "a new " { $link rect } } }
-{ $description "Computes the intersection of two rectangles." } ;
-
-HELP: intersects?
-{ $values { "rect/point" "a " { $link rect } " or a pair of integers" } { "rect" rect } { "?" "a boolean" } }
-{ $description "Tests if two rectangles (or a point and a rectangle, respectively) have a non-empty intersection." } ;
-
 HELP: gadget-child
 { $values { "gadget" gadget } { "child" gadget } }
-{ $description "Outputs the first child of the gadget. Typicallykernel.private this word is used with gadgets which are known to have an only child." } ;
+{ $description "Outputs the first child of the gadget. Typically this word is used with gadgets which are known to have an only child." } ;
 
 HELP: nth-gadget
 { $values { "n" "a non-negative integer" } { "gadget" gadget } { "child" gadget } }
 { $description "Outputs the " { $snippet "n" } "th child of the gadget." }
 { $errors "Throws an error if " { $snippet "n" } " is negative or greater than or equal to the number of children." } ;
 
-HELP: <zero-rect>
-{ $values { "rect" "a new " { $link rect } } }
-{ $description "Creates a rectangle located at the origin with zero dimensions." } ;
-
 HELP: <gadget>
 { $values { "gadget" "a new " { $link gadget } } }
 { $description "Creates a new gadget." } ;
 
-{ <gadget> set-gadget-delegate } related-words
-
 HELP: relative-loc
 { $values { "fromgadget" gadget } { "togadget" gadget } { "loc" "a pair of integers" } }
 { $description
@@ -83,7 +31,7 @@ HELP: user-input*
 HELP: children-on
 { $values { "rect/point" "a " { $link rect } " or a pair of integers" } { "gadget" gadget } { "seq" "a sequence of gadgets" } }
 { $contract "Outputs a sequence of gadgets which potentially intersect a rectangle or contain a point in the co-ordinate system of the gadget." }
-{ $notes "This does not have to be an accurate intersection test, and simply returning " { $link gadget-children } " is a valid implementation. However, an accurate intersection test reduces the amount of work done when drawing this gadget if it is partially clipped and not all children are visible." } ;
+{ $notes "This does not have to be an accurate intersection test, and simply returning " { $snippet "children" } " is a valid implementation. However, an accurate intersection test reduces the amount of work done when drawing this gadget if it is partially clipped and not all children are visible." } ;
 
 HELP: pick-up
 { $values { "point" "a pair of integers" } { "gadget" gadget } { "child/f" "a " { $link gadget } " or " { $link f } } }
@@ -99,11 +47,6 @@ HELP: each-child
 { $values { "gadget" gadget } { "quot" "a quotation with stack effect " { $snippet "( child -- )" } } }
 { $description "Applies the quotation to each child of the gadget." } ;
 
-HELP: set-gadget-delegate
-{ $values { "gadget" gadget } { "tuple" tuple } }
-{ $description "Sets the delegate of " { $snippet "tuple" } " to " { $snippet "gadget" } ". This is like " { $link set-delegate } ", except that to ensure correct behavior, the parent of each child of " { $snippet "gadget" } " is changed to " { $snippet "tuple" } "." }
-{ $notes "This word should be used instead of " { $link set-delegate } " when setting a tuple's delegate to a gadget." } ;
-
 HELP: gadget-selection?
 { $values { "gadget" gadget } { "?" "a boolean" } }
 { $contract "Outputs if the gadget has an active text selection; if so, the selected text can be obtained with a call to " { $link gadget-selection } "." } ;
@@ -114,7 +57,7 @@ HELP: gadget-selection
 
 HELP: relayout
 { $values { "gadget" gadget } }
-{ $description "Relayout and redraw a gadget before the next iteration of the event loop. Unlike " { $link relayout-1 } ", this relayouts all parents up to a gadget having " { $link gadget-root? } " set, so this word should be used when the gadget's dimensions have potentially changed." } ;
+{ $description "Relayout and redraw a gadget before the next iteration of the event loop. Unlike " { $link relayout-1 } ", this relayouts all parents up to a gadget having " { $snippet "root?" } " set, so this word should be used when the gadget's dimensions have potentially changed." } ;
 
 HELP: relayout-1
 { $values { "gadget" gadget } }
@@ -122,16 +65,6 @@ HELP: relayout-1
 
 { relayout relayout-1 } related-words
 
-HELP: set-layout-dim
-{ $values { "dim" "a pair of integers" } { "gadget" gadget } }
-{ $description "Resizes a gadget inside a " { $link layout* } " method." }
-{ $warning "Do not call this word outside of a " { $link layout* } " method, or otherwise the gadget will not be relayout automatically. Instead, use " { $link set-gadget-dim } "." } ;
-
-HELP: set-gadget-dim
-{ $values { "dim" "a pair of integers" } { "gadget" gadget } }
-{ $description "Resizes and relayouts a gadget before the next iteration of the event loop." }
-{ $warning "Do not call this word inside a " { $link layout* } " method, or otherwise unnecessary work will be done by the UI to ensure the gadget is relayout. Instead, use " { $link set-layout-dim } "." } ;
-
 HELP: pref-dim*
 { $values { "gadget" gadget } { "dim" "a pair of integers" } }
 { $contract "Outputs the preferred dimensions of the gadget, possibly computing them from the preferred dimensions of the gadget's children." }
@@ -197,13 +130,13 @@ HELP: clear-gadget
 { $side-effects "gadget" } ;
 
 HELP: add-gadget
-{ $values { "gadget" gadget } { "parent" gadget } }
+{ $values { "parent" gadget } { "child" gadget } }
 { $description "Adds a child gadget to a parent. If the gadget is contained in another gadget, " { $link unparent } " is called on the gadget first. The parent will be relayout." }
 { $notes "Adding a gadget to a parent may result in " { $link graft* } " being called on the children, if the parent is visible on the screen." }
 { $side-effects "parent" } ;
 
 HELP: add-gadgets
-{ $values { "seq" "a sequence of gadgets" } { "parent" gadget } }
+{ $values { "parent" gadget } { "children" "a sequence of gadgets" } }
 { $description "Adds a sequence of gadgets to a parent. The parent will be relayout." }
 { $notes "This may result in " { $link graft* } " being called on the children, if the parent is visible on the screen." }
 { $side-effects "parent" } ;
@@ -237,57 +170,7 @@ HELP: focusable-child
 { $values { "gadget" gadget } { "child" gadget } }
 { $description "Outputs the child of the gadget which would prefer to receive keyboard focus." } ;
 
-HELP: gadget,
-{ $values { "gadget" gadget } }
-{ $description "Adds a new child to the gadget being constructed. This word can only be used from a quotation passed to " { $link make-gadget } " or " { $link build-gadget } "." } ;
-
-HELP: make-gadget
-{ $values { "quot" quotation } { "gadget" gadget } }
-{ $description "Calls the quotation in a new scope with the gadget stored in the " { $link make-gadget } " variable." } ;
-
-HELP: build-gadget
-{ $values { "tuple" tuple } { "quot" quotation } { "gadget" gadget } }
-{ $description "Delegates the tuple to the gadget, and calls the quotation in a new scope with the tuple stored in the " { $link make-gadget } " and " { $link gadget } " variables." } ;
-
-HELP: with-gadget
-{ $values { "gadget" gadget } { "quot" quotation } } 
-{ $description "Calls the quotation in a new scope with the " { $link gadget } " and " { $link make-gadget } " variables set to " { $snippet "gadget" } ". The quotation can call " { $link g } " and " { $link g-> } " to access the gadget." } ;
-
-HELP: g
-{ $values { "gadget" gadget } }
-{ $description "Outputs the gadget being built. Can only be used inside a quotation passed to " { $link build-gadget } "." } ;
-
-HELP: g->
-{ $values { "x" object } { "gadget" gadget } }
-{ $description "Duplicates the top of the stack and outputs the gadget being built. Can only be used inside a quotation passed to " { $link build-gadget } "." } ;
-
-HELP: construct-control
-{ $values { "model" model } { "gadget" gadget } { "class" class } { "control" gadget } }
-{ $description "Creates a new control linked to the given model. The gadget parameter becomes the control's delegate. The quotation is called when the model value changes." }
-{ $examples
-    "The following example creates a gadget whose fill color is determined by the value of a model:"
-    { $code
-        "USING: ui.gadgets ui.gadgets.panes models ;"
-        ": set-fill-color >r <solid> r> set-gadget-interior ;"
-        ""
-        "TUPLE: color-gadget ;"
-        ""
-        "M: color-gadget model-changed"
-        "    >r model-value r> set-fill-color ;"
-        ""
-        ": <color-gadget> ( model -- gadget )"
-        "    <gadget>"
-        "    { 100 100 } over set-rect-dim"
-        "    color-gadget"
-        "    construct-control ;"
-        ""
-        "{ 1.0 0.0 0.5 1.0 } <model> <color-gadget>"
-        "gadget."
-    }
-    "The " { $vocab-link "color-picker" } " module extends this example into a more elaborate color chooser."
-} ;
-
-{ construct-control control-value set-control-value gadget-model } related-words
+{ control-value set-control-value } related-words
 
 HELP: control-value
 { $values { "control" gadget } { "value" object } }
@@ -298,12 +181,9 @@ HELP: set-control-value
 { $description "Sets the value of the control's model." } ;
 
 ARTICLE: "ui-control-impl" "Implementing controls"
-"A " { $emphasis "control" } " is a gadget which is linked to an underlying " { $link model } " by having its " { $link gadget-model } " slot set to a model instance."
+"A " { $emphasis "control" } " is a gadget which is linked to an underlying " { $link model } " by having its " { $snippet "model" } " slot set to a " { $link model } " instance."
 $nl
-"To implement a new control, simply use this word in your constructor:"
-{ $subsection construct-control }
 "Some utility words useful in control implementations:"
-{ $subsection gadget-model }
 { $subsection control-value }
 { $subsection set-control-value }
 { $see-also "models" } ;
diff --git a/basis/ui/gadgets/gadgets-tests.factor b/basis/ui/gadgets/gadgets-tests.factor
new file mode 100755
index 0000000000..a1602effe9
--- /dev/null
+++ b/basis/ui/gadgets/gadgets-tests.factor
@@ -0,0 +1,163 @@
+USING: accessors ui.gadgets ui.gadgets.packs ui.gadgets.worlds
+tools.test namespaces models kernel dlists deques math sets
+math.parser ui sequences hashtables assocs io arrays prettyprint
+io.streams.string math.geometry.rect ;
+IN: ui.gadgets.tests
+
+[ { 300 300 } ]
+[
+    ! c contains b contains a
+    <gadget> "a" set
+    <gadget> "b" set
+    "a" get "b" get swap add-gadget drop
+    <gadget> "c" set
+    "b" get "c" get swap add-gadget drop
+
+    ! position a and b
+    "a" get { 100 200 } >>loc drop
+    "b" get { 200 100 } >>loc drop
+
+    ! give c a loc, it doesn't matter
+    "c" get { -1000 23 } >>loc drop
+
+    ! what is the location of a inside c?
+    "a" get "c" get relative-loc
+] unit-test
+
+<gadget> "g1" set
+"g1" get { 10 10 } >>loc
+         { 30 30 } >>dim drop
+<gadget> "g2" set
+"g2" get { 20 20 } >>loc
+         { 50 500 } >>dim drop
+<gadget> "g3" set
+"g3" get { 100 200 } >>dim drop
+
+"g1" get "g2" get swap add-gadget drop
+"g2" get "g3" get swap add-gadget drop
+
+[ { 30 30 } ] [ "g1" get screen-loc ] unit-test
+[ { 30 30 } ] [ "g1" get screen-rect rect-loc ] unit-test
+[ { 30 30 } ] [ "g1" get screen-rect rect-dim ] unit-test
+[ { 20 20 } ] [ "g2" get screen-loc ] unit-test
+[ { 20 20 } ] [ "g2" get screen-rect rect-loc ] unit-test
+[ { 50 180 } ] [ "g2" get screen-rect rect-dim ] unit-test
+[ { 0 0 } ] [ "g3" get screen-loc ] unit-test
+[ { 0 0 } ] [ "g3" get screen-rect rect-loc ] unit-test
+[ { 100 200 } ] [ "g3" get screen-rect rect-dim ] unit-test
+
+<gadget> "g1" set
+"g1" get { 300 300 } >>dim drop
+<gadget> "g2" set
+"g2" get "g1" get swap add-gadget drop
+"g2" get { 20 20 } >>loc
+         { 20 20 } >>dim drop
+<gadget> "g3" set
+"g3" get "g1" get swap add-gadget drop
+"g3" get { 100 100 } >>loc
+         { 20 20 } >>dim drop
+
+[ t ] [ { 30 30 } "g2" get inside? ] unit-test
+
+[ t ] [ { 30 30 } "g1" get (pick-up) "g2" get eq? ] unit-test
+
+[ t ] [ { 30 30 } "g1" get pick-up "g2" get eq? ] unit-test
+
+[ t ] [ { 110 110 } "g1" get pick-up "g3" get eq? ] unit-test
+
+<gadget> "g4" set
+"g4" get "g2" get swap add-gadget drop
+"g4" get { 5 5 } >>loc
+         { 1 1 } >>dim drop
+
+[ t ] [ { 25 25 } "g1" get pick-up "g4" get eq? ] unit-test
+
+TUPLE: mock-gadget < gadget graft-called ungraft-called ;
+
+: <mock-gadget> ( -- gadget )
+    mock-gadget new-gadget 0 >>graft-called 0 >>ungraft-called ;
+
+M: mock-gadget graft*
+    [ 1+ ] change-graft-called drop ;
+
+M: mock-gadget ungraft*
+    [ 1+ ] change-ungraft-called drop ;
+
+! We can't print to output-stream here because that might be a pane
+! stream, and our graft-queue rebinding here would be captured
+! by code adding children to the pane...
+[
+    <dlist> \ graft-queue [
+        [ ] [ <mock-gadget> dup queue-graft unqueue-graft ] unit-test
+        [ t ] [ graft-queue deque-empty? ] unit-test
+    ] with-variable
+
+    <dlist> \ graft-queue [
+        [ t ] [ graft-queue deque-empty? ] unit-test
+
+        <mock-gadget> "g" set
+        [ ] [ "g" get queue-graft ] unit-test
+        [ f ] [ graft-queue deque-empty? ] unit-test
+        [ { f t } ] [ "g" get graft-state>> ] unit-test
+        [ ] [ "g" get graft-later ] unit-test
+        [ { f t } ] [ "g" get graft-state>> ] unit-test
+        [ ] [ "g" get ungraft-later ] unit-test
+        [ { f f } ] [ "g" get graft-state>> ] unit-test
+        [ t ] [ graft-queue deque-empty? ] unit-test
+        [ ] [ "g" get ungraft-later ] unit-test
+        [ ] [ "g" get graft-later ] unit-test
+        [ ] [ notify-queued ] unit-test
+        [ { t t } ] [ "g" get graft-state>> ] unit-test
+        [ t ] [ graft-queue deque-empty? ] unit-test
+        [ ] [ "g" get graft-later ] unit-test
+        [ 1 ] [ "g" get graft-called>> ] unit-test
+        [ ] [ "g" get ungraft-later ] unit-test
+        [ { t f } ] [ "g" get graft-state>> ] unit-test
+        [ ] [ notify-queued ] unit-test
+        [ 1 ] [ "g" get ungraft-called>> ] unit-test
+        [ { f f } ] [ "g" get graft-state>> ] unit-test
+    ] with-variable
+
+    : add-some-children
+        3 [
+            <mock-gadget> over <model> >>model
+            dup "g" get swap add-gadget drop
+            swap 1+ number>string set
+        ] each ;
+
+    : status-flags
+        { "g" "1" "2" "3" } [ get graft-state>> ] map prune ;
+
+    : notify-combo ( ? ? -- )
+        nl "===== Combo: " write 2dup 2array . nl
+        <dlist> \ graft-queue [
+            <mock-gadget> "g" set
+            [ ] [ add-some-children ] unit-test
+            [ V{ { f f } } ] [ status-flags ] unit-test
+            [ ] [ "g" get graft ] unit-test
+            [ V{ { f t } } ] [ status-flags ] unit-test
+            dup [ [ ] [ notify-queued ] unit-test ] when
+            [ ] [ "g" get clear-gadget ] unit-test
+            [ [ 1 ] [ graft-queue length>> ] unit-test ] unless
+            [ [ ] [ notify-queued ] unit-test ] when
+            [ ] [ add-some-children ] unit-test
+            [ { f t } ] [ "1" get graft-state>> ] unit-test
+            [ { f t } ] [ "2" get graft-state>> ] unit-test
+            [ { f t } ] [ "3" get graft-state>> ] unit-test
+            [ ] [ graft-queue [ "x" print notify ] slurp-deque ] unit-test
+            [ ] [ notify-queued ] unit-test
+            [ V{ { t t } } ] [ status-flags ] unit-test
+        ] with-variable ;
+
+    { { f f } { f t } { t f } { t t } } [ notify-combo ] assoc-each
+] with-string-writer print
+
+\ <gadget> must-infer
+\ unparent must-infer
+\ add-gadget must-infer
+\ add-gadgets must-infer
+\ clear-gadget must-infer
+
+\ relayout must-infer
+\ relayout-1 must-infer
+\ pref-dim must-infer
diff --git a/extra/ui/gadgets/gadgets.factor b/basis/ui/gadgets/gadgets.factor
similarity index 50%
rename from extra/ui/gadgets/gadgets.factor
rename to basis/ui/gadgets/gadgets.factor
index 411552cc32..15850ae357 100755
--- a/extra/ui/gadgets/gadgets.factor
+++ b/basis/ui/gadgets/gadgets.factor
@@ -1,78 +1,45 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays hashtables kernel models math namespaces sequences
-quotations math.vectors combinators sorting vectors dlists
-models threads concurrency.flags math.order ;
+USING: accessors arrays hashtables kernel models math namespaces
+       sequences quotations math.vectors combinators sorting
+       binary-search vectors dlists deques models threads
+       concurrency.flags math.order math.geometry.rect ;
+
 IN: ui.gadgets
 
 SYMBOL: ui-notify-flag
 
 : notify-ui-thread ( -- ) ui-notify-flag get-global raise-flag ;
 
-TUPLE: rect loc dim ;
+TUPLE: gadget < rect
+       pref-dim parent children orientation focus
+       visible? root? clipped? layout-state graft-state graft-node
+       interior boundary
+       model ;
 
-C: <rect> rect
-
-M: array rect-loc ;
-
-M: array rect-dim drop { 0 0 } ;
-
-: rect-bounds ( rect -- loc dim ) dup rect-loc swap rect-dim ;
-
-: rect-extent ( rect -- loc ext ) rect-bounds over v+ ;
-
-: 2rect-extent ( rect rect -- loc1 loc2 ext1 ext2 )
-    [ rect-extent ] bi@ swapd ;
-
-: <extent-rect> ( loc ext -- rect ) over [v-] <rect> ;
-
-: offset-rect ( rect loc -- newrect )
-    over rect-loc v+ swap rect-dim <rect> ;
-
-: (rect-intersect) ( rect rect -- array array )
-    2rect-extent vmin >r vmax r> ;
-
-: rect-intersect ( rect1 rect2 -- newrect )
-    (rect-intersect) <extent-rect> ;
-
-: intersects? ( rect/point rect -- ? )
-    (rect-intersect) [v-] { 0 0 } = ;
-
-: (rect-union) ( rect rect -- array array )
-    2rect-extent vmax >r vmin r> ;
-
-: rect-union ( rect1 rect2 -- newrect )
-    (rect-union) <extent-rect> ;
-
-TUPLE: gadget < identity-tuple
-pref-dim parent children orientation focus
-visible? root? clipped? layout-state graft-state graft-node
-interior boundary
-model ;
+M: gadget equal? 2drop f ;
 
 M: gadget hashcode* drop gadget hashcode* ;
 
 M: gadget model-changed 2drop ;
 
-: gadget-child ( gadget -- child ) gadget-children first ;
+: gadget-child ( gadget -- child ) children>> first ;
 
-: nth-gadget ( n gadget -- child ) gadget-children nth ;
+: nth-gadget ( n gadget -- child ) children>> nth ;
 
-: <zero-rect> ( -- rect ) { 0 0 } dup <rect> ;
+: init-gadget ( gadget -- gadget )
+  init-rect
+  { 0 1 } >>orientation
+  t       >>visible?
+  { f f } >>graft-state ; inline
+
+: new-gadget ( class -- gadget ) new init-gadget ; inline
 
 : <gadget> ( -- gadget )
-    <zero-rect> { 0 1 } t { f f } {
-        set-delegate
-        set-gadget-orientation
-        set-gadget-visible?
-        set-gadget-graft-state
-    } gadget construct ;
-
-: construct-gadget ( class -- tuple )
-    >r <gadget> r> construct-delegate ; inline
+    gadget new-gadget ;
 
 : activate-control ( gadget -- )
-    dup gadget-model dup [
+    dup model>> dup [
         2dup add-connection
         swap model-changed
     ] [
@@ -80,20 +47,20 @@ M: gadget model-changed 2drop ;
     ] if ;
 
 : deactivate-control ( gadget -- )
-    dup gadget-model dup [ 2dup remove-connection ] when 2drop ;
+    dup model>> dup [ 2dup remove-connection ] when 2drop ;
 
 : control-value ( control -- value )
-    gadget-model model-value ;
+    model>> value>> ;
 
 : set-control-value ( value control -- )
-    gadget-model set-model ;
+    model>> set-model ;
 
 : relative-loc ( fromgadget togadget -- loc )
     2dup eq? [
         2drop { 0 0 }
     ] [
         over rect-loc >r
-        >r gadget-parent r> relative-loc
+        >r parent>> r> relative-loc
         r> v+
     ] if ;
 
@@ -103,22 +70,21 @@ M: gadget user-input* 2drop t ;
 
 GENERIC: children-on ( rect/point gadget -- seq )
 
-M: gadget children-on nip gadget-children ;
+M: gadget children-on nip children>> ;
 
-: (fast-children-on) ( dim axis gadgets -- i )
-    swapd [ rect-loc v- over v. 0 <=> ] binsearch nip ;
+: ((fast-children-on)) ( gadget dim axis -- <=> )
+    [ swap loc>> v- ] dip v. 0 <=> ;
+
+: (fast-children-on) ( dim axis children -- i )
+    -rot [ ((fast-children-on)) ] 2curry search drop ;
 
 : fast-children-on ( rect axis children -- from to )
-    3dup
-    >r >r dup rect-loc swap rect-dim v+
-    r> r> (fast-children-on) ?1+
-    >r
-    >r >r rect-loc
-    r> r> (fast-children-on) 0 or
-    r> ;
+    [ [ rect-loc ] 2dip (fast-children-on) 0 or ]
+    [ [ rect-bounds v+ ] 2dip (fast-children-on) ?1+ ]
+    3bi ;
 
 : inside? ( bounds gadget -- ? )
-    dup gadget-visible? [ intersects? ] [ 2drop f ] if ;
+    dup visible?>> [ intersects? ] [ 2drop f ] if ;
 
 : (pick-up) ( point gadget -- gadget )
     dupd children-on [ inside? ] with find-last nip ;
@@ -132,19 +98,10 @@ M: gadget children-on nip gadget-children ;
 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
 
 : orient ( gadget seq1 seq2 -- seq )
-    >r >r gadget-orientation r> r> [ pick set-axis ] 2map nip ;
+    >r >r orientation>> r> r> [ pick set-axis ] 2map nip ;
 
 : each-child ( gadget quot -- )
-    >r gadget-children r> each ; inline
-
-: set-gadget-delegate ( gadget tuple -- )
-    over [
-        dup pick [ set-gadget-parent ] with each-child
-    ] when set-delegate ;
-
-: construct-control ( model gadget class -- control )
-    >r tuck set-gadget-model
-    { set-gadget-delegate } r> construct ; inline
+    >r children>> r> each ; inline
 
 ! Selection protocol
 GENERIC: gadget-selection? ( gadget -- ? )
@@ -161,14 +118,14 @@ GENERIC: gadget-text* ( gadget -- )
 GENERIC: gadget-text-separator ( gadget -- str )
 
 M: gadget gadget-text-separator
-    gadget-orientation { 0 1 } = "\n" "" ? ;
+    orientation>> { 0 1 } = "\n" "" ? ;
 
 : gadget-seq-text ( seq gadget -- )
     gadget-text-separator swap
     [ dup % ] [ gadget-text* ] interleave drop ;
 
 M: gadget gadget-text*
-    dup gadget-children swap gadget-seq-text ;
+    dup children>> swap gadget-seq-text ;
 
 M: array gadget-text*
     [ gadget-text* ] each ;
@@ -176,9 +133,9 @@ M: array gadget-text*
 : gadget-text ( gadget -- string ) [ gadget-text* ] "" make ;
 
 : invalidate ( gadget -- )
-    \ invalidate swap set-gadget-layout-state ;
+    \ invalidate swap (>>layout-state) ;
 
-: forget-pref-dim ( gadget -- ) f swap set-gadget-pref-dim ;
+: forget-pref-dim ( gadget -- ) f swap (>>pref-dim) ;
 
 : layout-queue ( -- queue ) \ layout-queue get ;
 
@@ -191,42 +148,42 @@ M: array gadget-text*
 DEFER: relayout
 
 : invalidate* ( gadget -- )
-    \ invalidate* over set-gadget-layout-state
+    \ invalidate* over (>>layout-state)
     dup forget-pref-dim
-    dup gadget-root?
-    [ layout-later ] [ gadget-parent [ relayout ] when* ] if ;
+    dup root?>>
+    [ layout-later ] [ parent>> [ relayout ] when* ] if ;
 
 : relayout ( gadget -- )
-    dup gadget-layout-state \ invalidate* eq?
+    dup layout-state>> \ invalidate* eq?
     [ drop ] [ invalidate* ] if ;
 
 : relayout-1 ( gadget -- )
-    dup gadget-layout-state
+    dup layout-state>>
     [ drop ] [ dup invalidate layout-later ] if ;
 
-: show-gadget t swap set-gadget-visible? ;
+: show-gadget ( gadget -- ) t swap (>>visible?) ;
 
-: hide-gadget f swap set-gadget-visible? ;
+: hide-gadget ( gadget -- ) f swap (>>visible?) ;
 
-: (set-rect-dim) ( dim gadget quot -- )
-    >r 2dup rect-dim =
-    [ [ 2drop ] [ set-rect-dim ] if ] 2keep
-    [ drop ] r> if ; inline
+DEFER: in-layout?
 
-: set-layout-dim ( dim gadget -- )
-    [ invalidate ] (set-rect-dim) ;
+: do-invalidate ( gadget -- gadget )
+  in-layout? get [ dup invalidate ] [ dup invalidate* ] if ;
 
-: set-gadget-dim ( dim gadget -- )
-    [ invalidate* ] (set-rect-dim) ;
+M: gadget (>>dim) ( dim gadget -- )
+   2dup dim>> =
+     [ 2drop ]
+     [ tuck call-next-method do-invalidate drop ]
+   if ;
 
 GENERIC: pref-dim* ( gadget -- dim )
 
 : ?set-gadget-pref-dim ( dim gadget -- )
-    dup gadget-layout-state
-    [ 2drop ] [ set-gadget-pref-dim ] if ;
+    dup layout-state>>
+    [ 2drop ] [ (>>pref-dim) ] if ;
 
 : pref-dim ( gadget -- dim )
-    dup gadget-pref-dim [ ] [
+    dup pref-dim>> [ ] [
         [ pref-dim* dup ] keep ?set-gadget-pref-dim
     ] ?if ;
 
@@ -238,27 +195,26 @@ GENERIC: layout* ( gadget -- )
 
 M: gadget layout* drop ;
 
-: prefer ( gadget -- ) dup pref-dim swap set-layout-dim ;
+: prefer ( gadget -- ) dup pref-dim swap (>>dim) ;
 
-: validate ( gadget -- ) f swap set-gadget-layout-state ;
+: validate ( gadget -- ) f swap (>>layout-state) ;
 
 : layout ( gadget -- )
-    dup gadget-layout-state [
+    dup layout-state>> [
         dup validate
         dup layout*
         dup [ layout ] each-child
     ] when drop ;
 
-: graft-queue \ graft-queue get ;
+: graft-queue ( -- dlist ) \ graft-queue get ;
 
 : unqueue-graft ( gadget -- )
-    graft-queue over gadget-graft-node delete-node
-    dup gadget-graft-state first { t t } { f f } ?
-    swap set-gadget-graft-state ;
+    [ graft-node>> graft-queue delete-node ]
+    [ [ first { t t } { f f } ? ] change-graft-state drop ] bi ;
 
 : (queue-graft) ( gadget flags -- )
-    over set-gadget-graft-state
-    dup graft-queue push-front* swap set-gadget-graft-node
+    >>graft-state
+    dup graft-queue push-front* >>graft-node drop
     notify-ui-thread ;
 
 : queue-graft ( gadget -- )
@@ -268,7 +224,7 @@ M: gadget layout* drop ;
     { t f } (queue-graft) ;
 
 : graft-later ( gadget -- )
-    dup gadget-graft-state {
+    dup graft-state>> {
         { { f t } [ drop ] }
         { { t t } [ drop ] }
         { { t f } [ unqueue-graft ] }
@@ -276,7 +232,7 @@ M: gadget layout* drop ;
     } case ;
 
 : ungraft-later ( gadget -- )
-    dup gadget-graft-state {
+    dup graft-state>> {
         { { f f } [ drop ] }
         { { t f } [ drop ] }
         { { f t } [ unqueue-graft ] }
@@ -300,25 +256,25 @@ M: gadget ungraft* drop ;
 : (unparent) ( gadget -- )
     dup ungraft
     dup forget-pref-dim
-    f swap set-gadget-parent ;
+    f swap (>>parent) ;
 
 : unfocus-gadget ( child gadget -- )
-    tuck gadget-focus eq?
-    [ f swap set-gadget-focus ] [ drop ] if ;
+    tuck focus>> eq?
+    [ f swap (>>focus) ] [ drop ] if ;
 
 SYMBOL: in-layout?
 
-: not-in-layout
+: not-in-layout ( -- )
     in-layout? get
     [ "Cannot add/remove gadgets in layout*" throw ] when ;
 
 : unparent ( gadget -- )
     not-in-layout
     [
-        dup gadget-parent dup [
+        dup parent>> dup [
             over (unparent)
             [ unfocus-gadget ] 2keep
-            [ gadget-children delete ] keep
+            [ children>> delete ] keep
             relayout
         ] [
             2drop
@@ -327,32 +283,37 @@ SYMBOL: in-layout?
 
 : (clear-gadget) ( gadget -- )
     dup [ (unparent) ] each-child
-    f over set-gadget-focus
-    f swap set-gadget-children ;
+    f over (>>focus)
+    f swap (>>children) ;
 
 : clear-gadget ( gadget -- )
     not-in-layout
     dup (clear-gadget) relayout ;
 
-: ((add-gadget)) ( gadget box -- )
-    [ gadget-children ?push ] keep set-gadget-children ;
+: ((add-gadget)) ( parent child -- parent )
+    over children>> ?push >>children ;
 
-: (add-gadget) ( gadget box -- )
-    over unparent
-    dup pick set-gadget-parent
-    [ ((add-gadget)) ] 2keep
-    gadget-graft-state second [ graft ] [ drop ] if ;
+: (add-gadget) ( parent child -- parent )
+    dup unparent
+    over >>parent
+    tuck ((add-gadget))
+    tuck graft-state>> second
+        [ graft ]
+        [ drop  ]
+    if ;
 
-: add-gadget ( gadget parent -- )
+: add-gadget ( parent child -- parent )
     not-in-layout
-    [ (add-gadget) ] keep relayout ;
-
-: add-gadgets ( seq parent -- )
+    (add-gadget)
+    dup relayout ;
+  
+: add-gadgets ( parent children -- parent )
     not-in-layout
-    swap [ over (add-gadget) ] each relayout ;
+    [ (add-gadget) ] each
+    dup relayout ;
 
 : parents ( gadget -- seq )
-    [ gadget-parent ] follow ;
+    [ parent>> ] follow ;
 
 : each-parent ( gadget quot -- ? )
     >r parents r> all? ; inline
@@ -364,7 +325,7 @@ SYMBOL: in-layout?
     parents { 0 0 } [ rect-loc v+ ] reduce ;
 
 : (screen-rect) ( gadget -- loc ext )
-    dup gadget-parent [
+    dup parent>> [
         >r rect-extent r> (screen-rect)
         >r tuck v+ r> vmin >r v+ r>
     ] [
@@ -378,7 +339,7 @@ SYMBOL: in-layout?
     {
         { [ 2dup eq? ] [ 2drop t ] }
         { [ dup not ] [ 2drop f ] }
-        [ gadget-parent child? ]
+        [ parent>> child? ]
     } cond ;
 
 GENERIC: focusable-child* ( gadget -- child/t )
@@ -391,7 +352,7 @@ M: gadget focusable-child* drop t ;
 
 GENERIC: request-focus-on ( child gadget -- )
 
-M: gadget request-focus-on gadget-parent request-focus-on ;
+M: gadget request-focus-on parent>> request-focus-on ;
 
 M: f request-focus-on 2drop ;
 
@@ -399,21 +360,4 @@ M: f request-focus-on 2drop ;
     [ focusable-child ] keep request-focus-on ;
 
 : focus-path ( world -- seq )
-    [ gadget-focus ] follow ;
-
-: make-gadget ( quot gadget -- gadget )
-    [ \ make-gadget rot with-variable ] keep ; inline
-
-: gadget, ( gadget -- ) \ make-gadget get add-gadget ;
-
-: g ( -- gadget ) gadget get ;
-
-: g-> ( x -- x x gadget ) dup g ;
-
-: with-gadget ( gadget quot -- )
-    [
-        swap dup \ make-gadget set gadget set call
-    ] with-scope ; inline
-
-: build-gadget ( tuple quot gadget -- tuple )
-    pick set-gadget-delegate over >r with-gadget r> ; inline
+    [ focus>> ] follow ;
diff --git a/extra/ui/gadgets/canvas/authors.txt b/basis/ui/gadgets/grid-lines/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/ui/gadgets/canvas/authors.txt
rename to basis/ui/gadgets/grid-lines/authors.txt
diff --git a/extra/ui/gadgets/grid-lines/grid-lines-docs.factor b/basis/ui/gadgets/grid-lines/grid-lines-docs.factor
similarity index 85%
rename from extra/ui/gadgets/grid-lines/grid-lines-docs.factor
rename to basis/ui/gadgets/grid-lines/grid-lines-docs.factor
index 92f6846774..0838f1ded7 100755
--- a/extra/ui/gadgets/grid-lines/grid-lines-docs.factor
+++ b/basis/ui/gadgets/grid-lines/grid-lines-docs.factor
@@ -3,4 +3,4 @@ ui.render ;
 IN: ui.gadgets.grid-lines
 
 HELP: grid-lines
-{ $class-description "A class implementing the " { $link draw-boundary } " generic word to draw lines between the cells of a " { $link grid } ". The color of the lines is a color specifier stored in the " { $link grid-lines-color } " slot." } ;
+{ $class-description "A class implementing the " { $link draw-boundary } " generic word to draw lines between the cells of a " { $link grid } ". The color of the lines is a color specifier stored in the " { $snippet "color" } " slot." } ;
diff --git a/extra/ui/gadgets/grid-lines/grid-lines.factor b/basis/ui/gadgets/grid-lines/grid-lines.factor
similarity index 78%
rename from extra/ui/gadgets/grid-lines/grid-lines.factor
rename to basis/ui/gadgets/grid-lines/grid-lines.factor
index 533116824b..f4266adba1 100755
--- a/extra/ui/gadgets/grid-lines/grid-lines.factor
+++ b/basis/ui/gadgets/grid-lines/grid-lines.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math namespaces opengl opengl.gl sequences
-math.vectors ui.gadgets ui.gadgets.grids ui.render ;
+USING: kernel accessors math namespaces opengl opengl.gl sequences
+math.vectors ui.gadgets ui.gadgets.grids ui.render math.geometry.rect ;
 IN: ui.gadgets.grid-lines
 
 TUPLE: grid-lines color ;
@@ -10,7 +10,7 @@ C: <grid-lines> grid-lines
 
 SYMBOL: grid-dim
 
-: half-gap grid get grid-gap [ 2/ ] map ; inline
+: half-gap grid get gap>> [ 2/ ] map ; inline
 
 : grid-line-from/to ( orientation point -- from to )
     half-gap v-
@@ -25,7 +25,7 @@ SYMBOL: grid-dim
 M: grid-lines draw-boundary
     origin get [
         -0.5 -0.5 0.0 glTranslated
-        grid-lines-color gl-color [
+        color>> set-color [
             dup grid set
             dup rect-dim half-gap v- grid-dim set
             compute-grid
diff --git a/extra/ui/gadgets/grid-lines/summary.txt b/basis/ui/gadgets/grid-lines/summary.txt
similarity index 100%
rename from extra/ui/gadgets/grid-lines/summary.txt
rename to basis/ui/gadgets/grid-lines/summary.txt
diff --git a/extra/ui/gadgets/editors/authors.txt b/basis/ui/gadgets/grids/authors.txt
similarity index 100%
rename from extra/ui/gadgets/editors/authors.txt
rename to basis/ui/gadgets/grids/authors.txt
diff --git a/extra/ui/gadgets/grids/grids-docs.factor b/basis/ui/gadgets/grids/grids-docs.factor
similarity index 73%
rename from extra/ui/gadgets/grids/grids-docs.factor
rename to basis/ui/gadgets/grids/grids-docs.factor
index a3a65f633f..64e14c4961 100755
--- a/extra/ui/gadgets/grids/grids-docs.factor
+++ b/basis/ui/gadgets/grids/grids-docs.factor
@@ -1,12 +1,22 @@
 USING: ui.gadgets help.markup help.syntax arrays ;
 IN: ui.gadgets.grids
 
+ARTICLE: "ui-grid-layout" "Grid layouts"
+"Grid gadgets layout their children in a rectangular grid."
+{ $subsection grid }
+"Creating grids from a fixed set of gadgets:"
+{ $subsection <grid> }
+"Managing chidren:"
+{ $subsection grid-add }
+{ $subsection grid-remove }
+{ $subsection grid-child } ;
+
 HELP: grid
 { $class-description "A grid gadget lays out its children so that all gadgets in a column have equal width and all gadgets in a row have equal height."
 $nl
-"The " { $link grid-gap } " slot stores a pair of integers, the horizontal and vertical gap between children, respectively."
+"The " { $snippet "gap" } " slot stores a pair of integers, the horizontal and vertical gap between children, respectively."
 $nl
-"The " { $link grid-fill? } " slot stores a boolean, indicating if grid cells should assume their preferred size, or if they should fill the dimensions of the cell. The default is " { $link t } "."
+"The " { $snippet "fill?" } " slot stores a boolean, indicating if grid cells should assume their preferred size, or if they should fill the dimensions of the cell. The default is " { $link t } "."
 $nl
 "Grids are created by calling " { $link <grid> } " and children are managed with " { $link grid-add } " and " { $link grid-remove } "."
 $nl
@@ -22,7 +32,7 @@ HELP: grid-child
 { $errors "Throws an error if the indices are out of bounds." } ;
 
 HELP: grid-add
-{ $values { "gadget" gadget } { "grid" grid } { "i" "non-negative integer" } { "j" "non-negative integer" } }
+{ $values { "grid" grid } { "child" gadget } { "i" "non-negative integer" } { "j" "non-negative integer" } }
 { $description "Adds a child gadget at the specified location." }
 { $side-effects "grid" } ;
 
@@ -30,3 +40,5 @@ HELP: grid-remove
 { $values { "grid" grid } { "i" "non-negative integer" } { "j" "non-negative integer" } }
 { $description "Removes a child gadget from the specified location." }
 { $side-effects "grid" } ;
+
+ABOUT: "ui-grid-layout"
diff --git a/extra/ui/gadgets/grids/grids-tests.factor b/basis/ui/gadgets/grids/grids-tests.factor
similarity index 88%
rename from extra/ui/gadgets/grids/grids-tests.factor
rename to basis/ui/gadgets/grids/grids-tests.factor
index f20275ff25..9015b7ec1b 100644
--- a/extra/ui/gadgets/grids/grids-tests.factor
+++ b/basis/ui/gadgets/grids/grids-tests.factor
@@ -1,10 +1,10 @@
 USING: ui.gadgets ui.gadgets.grids tools.test kernel arrays
-namespaces ;
+namespaces math.geometry.rect accessors ;
 IN: ui.gadgets.grids.tests
 
 [ { 0 0 } ] [ { } <grid> pref-dim ] unit-test
 
-: 100x100 <gadget> { 100 100 } over set-rect-dim ;
+: 100x100 <gadget> { 100 100 } >>dim ;
 
 [ { 100 100 } ] [
     100x100
@@ -38,7 +38,7 @@ IN: ui.gadgets.grids.tests
     100x100 dup "a" set
     100x100 dup "b" set
     2array 1array <grid>
-    { 10 10 } over set-grid-gap
+    { 10 10 } >>gap
     dup prefer
     dup layout
     rect-dim
diff --git a/extra/ui/gadgets/grids/grids.factor b/basis/ui/gadgets/grids/grids.factor
similarity index 53%
rename from extra/ui/gadgets/grids/grids.factor
rename to basis/ui/gadgets/grids/grids.factor
index 9951256249..42e8cfdfdf 100644
--- a/extra/ui/gadgets/grids/grids.factor
+++ b/basis/ui/gadgets/grids/grids.factor
@@ -1,33 +1,36 @@
-! Copyright (C) 2006 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays kernel math namespaces sequences words io
-io.streams.string math.vectors ui.gadgets columns ;
+io.streams.string math.vectors ui.gadgets columns accessors
+math.geometry.rect ;
 IN: ui.gadgets.grids
 
-TUPLE: grid children gap fill? ;
+TUPLE: grid < gadget
+grid
+{ gap initial: { 0 0 } }
+{ fill? initial: t } ;
 
-: set-grid-children* ( children grid -- )
-    [ set-grid-children ] 2keep >r concat r> add-gadgets ;
+: new-grid ( children class -- grid )
+    new-gadget
+    [ (>>grid) ] [ >r concat r> swap add-gadgets drop ] [ nip ] 2tri ;
+    inline
 
 : <grid> ( children -- grid )
-    grid construct-gadget
-    [ set-grid-children* ] keep
-    { 0 0 } over set-grid-gap
-    t over set-grid-fill? ;
+    grid new-grid ;
 
-: grid-child ( grid i j -- gadget ) rot grid-children nth nth ;
+: grid-child ( grid i j -- gadget ) rot grid>> nth nth ;
 
-: grid-add ( gadget grid i j -- )
-    >r >r 2dup add-gadget r> r>
-    3dup grid-child unparent rot grid-children nth set-nth ;
+: grid-add ( grid child i j -- grid )
+  >r >r dupd swap r> r>
+  >r >r 2dup swap add-gadget drop r> r>
+  3dup grid-child unparent rot grid>> nth set-nth ;
 
-: grid-remove ( grid i j -- )
-    >r >r >r <gadget> r> r> r> grid-add ;
+: grid-remove ( grid i j -- grid ) <gadget> -rot grid-add ;
 
 : pref-dim-grid ( grid -- dims )
-    grid-children [ [ pref-dim ] map ] map ;
+    grid>> [ [ pref-dim ] map ] map ;
 
-: (compute-grid) [ max-dim ] map ;
+: (compute-grid) ( grid -- seq ) [ max-dim ] map ;
 
 : compute-grid ( grid -- horiz vert )
     pref-dim-grid dup flip (compute-grid) swap (compute-grid) ;
@@ -45,27 +48,27 @@ TUPLE: grid children gap fill? ;
     dupd add-gaps dim-sum v+ ;
 
 M: grid pref-dim*
-    dup grid-gap swap compute-grid >r over r>
+    dup gap>> swap compute-grid >r over r>
     gap-sum >r gap-sum r> (pair-up) ;
 
 : do-grid ( dims grid quot -- )
-    -rot grid-children
+    -rot grid>>
     [ [ pick call ] 2each ] 2each
     drop ; inline
 
 : grid-positions ( grid dims -- locs )
-    >r grid-gap dup r> add-gaps swap [ v+ ] accumulate nip ;
+    >r gap>> dup r> add-gaps swap [ v+ ] accumulate nip ;
 
 : position-grid ( grid horiz vert -- )
     pick >r
     >r over r> grid-positions >r grid-positions r>
-    pair-up r> [ set-rect-loc ] do-grid ;
+    pair-up r> [ (>>loc) ] do-grid ;
 
 : resize-grid ( grid horiz vert -- )
-    pick grid-fill? [
-        pair-up swap [ set-layout-dim ] do-grid
+    pick fill?>> [
+        pair-up swap [ (>>dim) ] do-grid
     ] [
-        2drop grid-children [ [ prefer ] each ] each
+        2drop grid>> [ [ prefer ] each ] each
     ] if ;
 
 : grid-layout ( grid horiz vert -- )
@@ -74,15 +77,16 @@ M: grid pref-dim*
 M: grid layout* dup compute-grid grid-layout ;
 
 M: grid children-on ( rect gadget -- seq )
-    dup gadget-children empty? [
-        2drop f
-    ] [
-        { 0 1 } swap grid-children
+    dup children>> empty?
+      [ 2drop f ]
+      [
+        { 0 1 } swap grid>>
         [ 0 <column> fast-children-on ] keep
         <slice> concat
-    ] if ;
+      ]
+    if ;
 
 M: grid gadget-text*
-    grid-children
+    grid>>
     [ [ gadget-text ] map ] map format-table
     [ CHAR: \n , ] [ % ] interleave ;
diff --git a/extra/ui/gadgets/grids/summary.txt b/basis/ui/gadgets/grids/summary.txt
similarity index 100%
rename from extra/ui/gadgets/grids/summary.txt
rename to basis/ui/gadgets/grids/summary.txt
diff --git a/extra/ui/gadgets/frames/authors.txt b/basis/ui/gadgets/incremental/authors.txt
similarity index 100%
rename from extra/ui/gadgets/frames/authors.txt
rename to basis/ui/gadgets/incremental/authors.txt
diff --git a/basis/ui/gadgets/incremental/incremental-docs.factor b/basis/ui/gadgets/incremental/incremental-docs.factor
new file mode 100755
index 0000000000..28c28be3a7
--- /dev/null
+++ b/basis/ui/gadgets/incremental/incremental-docs.factor
@@ -0,0 +1,44 @@
+USING: ui.gadgets help.markup help.syntax ui.gadgets.packs ;
+IN: ui.gadgets.incremental
+
+HELP: incremental
+{ $class-description "Incremental layout gadgets inherit from " { $link pack } " and implement an optimization where the relayout operation after adding a child to be done in constant time."
+$nl
+"Incremental layout gadgets are created by calling " { $link <incremental> } "."
+$nl
+"Children are managed with the " { $link add-incremental } " and " { $link clear-incremental } " words."
+$nl
+"Not every " { $link pack } " can use incremental layout, since incremental layout does not support non-default values for " { $snippet "align" } ", " { $snippet "fill" } ", and " { $snippet "gap" } "." } ;
+
+HELP: <incremental>
+{ $values { "incremental" "a new instance of " { $link incremental } } }
+{ $description "Creates a new incremental layout gadget." } ;
+
+{ <incremental> add-incremental clear-incremental } related-words
+
+HELP: add-incremental
+{ $values { "gadget" gadget } { "incremental" incremental } }
+{ $description "Adds the gadget to the incremental layout and performs relayout immediately in constant time." }
+{ $side-effects "incremental" } ;
+
+HELP: clear-incremental
+{ $values { "incremental" incremental } }
+{ $description "Removes all gadgets from the incremental layout and performs relayout immediately in constant time." }
+{ $side-effects "incremental" } ;
+
+ARTICLE: "ui-incremental-layout" "Incremental layouts"
+"Incremental layout gadgets are like " { $link "ui-pack-layout" } " except the relayout operation after adding a new child can be done in constant time."
+$nl
+"With all layouts, relayout requests from consecutive additions and removals are of children are coalesced and result in only one relayout operation being performed, however the run time of the relayout operation itself depends on the number of children."
+$nl
+"Incremental layout is used by " { $link "ui.gadgets.panes" } " to ensure that new lines of output does not take longer to display when the pane already has previous output."
+$nl
+"Incremental layouts are not a general replacement for " { $link "ui-pack-layout" } " and there are some limitations to be aware of."
+{ $subsection incremental }
+{ $subsection <incremental> }
+"Children are added and removed with a special set of words which perform necessary relayout immediately:"
+{ $subsection add-incremental }
+{ $subsection clear-incremental }
+"Calling " { $link unparent } " to remove a child of an incremental layout is permitted, however the relayout following the removal will not be performed in constant time, because all gadgets following the removed gadget need to be moved." ;
+
+ABOUT: "ui-incremental-layout"
diff --git a/extra/ui/gadgets/incremental/incremental.factor b/basis/ui/gadgets/incremental/incremental.factor
similarity index 56%
rename from extra/ui/gadgets/incremental/incremental.factor
rename to basis/ui/gadgets/incremental/incremental.factor
index c90b955eb7..4d67080775 100755
--- a/extra/ui/gadgets/incremental/incremental.factor
+++ b/basis/ui/gadgets/incremental/incremental.factor
@@ -1,6 +1,7 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io kernel math namespaces math.vectors ui.gadgets ;
+USING: io kernel math namespaces math.vectors ui.gadgets
+ui.gadgets.packs accessors math.geometry.rect ;
 IN: ui.gadgets.incremental
 
 ! Incremental layout allows adding lines to panes to be O(1).
@@ -14,47 +15,47 @@ IN: ui.gadgets.incremental
 ! New gadgets are added at
 !   incremental-cursor gadget-orientation v*
 
-TUPLE: incremental cursor ;
+TUPLE: incremental < pack cursor ;
 
-: <incremental> ( pack -- incremental )
-    dup pref-dim
-    { set-gadget-delegate set-incremental-cursor }
-    incremental construct ;
+: <incremental> ( -- incremental )
+    incremental new-gadget
+        { 0 1 } >>orientation
+        { 0 0 } >>cursor ;
 
 M: incremental pref-dim*
-    dup gadget-layout-state [
-        dup delegate pref-dim over set-incremental-cursor
-    ] when incremental-cursor ;
+    dup layout-state>> [
+        dup call-next-method over (>>cursor)
+    ] when cursor>> ;
 
 : next-cursor ( gadget incremental -- cursor )
     [
-        swap rect-dim swap incremental-cursor
+        swap rect-dim swap cursor>>
         2dup v+ >r vmax r>
-    ] keep gadget-orientation set-axis ;
+    ] keep orientation>> set-axis ;
 
 : update-cursor ( gadget incremental -- )
-    [ next-cursor ] keep set-incremental-cursor ;
+    [ next-cursor ] keep (>>cursor) ;
 
 : incremental-loc ( gadget incremental -- )
-    dup incremental-cursor swap gadget-orientation v*
-    swap set-rect-loc ;
+    [ cursor>> ] [ orientation>> ] bi v*
+    >>loc drop ;
 
 : prefer-incremental ( gadget -- )
-    dup forget-pref-dim dup pref-dim swap set-rect-dim ;
+    dup forget-pref-dim dup pref-dim >>dim drop ;
 
 : add-incremental ( gadget incremental -- )
     not-in-layout
-    2dup (add-gadget)
+    2dup swap (add-gadget) drop
     over prefer-incremental
     over layout-later
     2dup incremental-loc
     tuck update-cursor
     dup prefer-incremental
-    gadget-parent [ invalidate* ] when* ;
+    parent>> [ invalidate* ] when* ;
 
 : clear-incremental ( incremental -- )
     not-in-layout
     dup (clear-gadget)
     dup forget-pref-dim
-    { 0 0 } over set-incremental-cursor
-    gadget-parent [ relayout ] when* ;
+    { 0 0 } over (>>cursor)
+    parent>> [ relayout ] when* ;
diff --git a/extra/ui/gadgets/incremental/summary.txt b/basis/ui/gadgets/incremental/summary.txt
similarity index 100%
rename from extra/ui/gadgets/incremental/summary.txt
rename to basis/ui/gadgets/incremental/summary.txt
diff --git a/extra/ui/gadgets/grid-lines/authors.txt b/basis/ui/gadgets/labelled/authors.txt
similarity index 100%
rename from extra/ui/gadgets/grid-lines/authors.txt
rename to basis/ui/gadgets/labelled/authors.txt
diff --git a/extra/ui/gadgets/labelled/labelled-docs.factor b/basis/ui/gadgets/labelled/labelled-docs.factor
similarity index 100%
rename from extra/ui/gadgets/labelled/labelled-docs.factor
rename to basis/ui/gadgets/labelled/labelled-docs.factor
diff --git a/basis/ui/gadgets/labelled/labelled.factor b/basis/ui/gadgets/labelled/labelled.factor
new file mode 100755
index 0000000000..64020c7626
--- /dev/null
+++ b/basis/ui/gadgets/labelled/labelled.factor
@@ -0,0 +1,56 @@
+! Copyright (C) 2006, 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays ui.gadgets.buttons ui.gadgets.borders
+ui.gadgets.labels ui.gadgets.panes ui.gadgets.scrollers
+ui.gadgets.tracks ui.gadgets.theme ui.gadgets.frames
+ui.gadgets.grids io kernel math models namespaces prettyprint
+sequences sequences words classes.tuple ui.gadgets ui.render
+colors accessors ;
+IN: ui.gadgets.labelled
+
+TUPLE: labelled-gadget < track content ;
+
+: <labelled-gadget> ( gadget title -- newgadget )
+  { 0 1 } labelled-gadget new-track
+    swap <label> reverse-video-theme f track-add
+    swap >>content
+    dup content>> 1 track-add ;
+
+M: labelled-gadget focusable-child* content>> ;
+
+: <labelled-scroller> ( gadget title -- gadget )
+    >r <scroller> r> <labelled-gadget> ;
+
+: <labelled-pane> ( model quot scrolls? title -- gadget )
+    >r >r <pane-control> r> over (>>scrolls?) r>
+    <labelled-scroller> ;
+
+: <close-box> ( quot -- button/f )
+    gray close-box <polygon-gadget> swap <bevel-button> ;
+
+: title-theme ( gadget -- )
+    { 1 0 } over (>>orientation)
+    T{ gradient f {
+        T{ rgba f 0.65 0.65 1.0 1.0 }
+        T{ rgba f 0.65 0.45 1.0 1.0 }
+    } } swap (>>interior) ;
+
+: <title-label> ( text -- label ) <label> dup title-theme ;
+
+: <title-bar> ( title quot -- gadget )
+  <frame>
+    swap dup [ <close-box> @left grid-add ] [ drop ] if
+    swap <title-label> @center grid-add ;
+
+TUPLE: closable-gadget < frame content ;
+
+: find-closable-gadget ( parent -- child )
+    [ closable-gadget? ] find-parent ;
+
+: <closable-gadget> ( gadget title quot -- gadget )
+  closable-gadget new-frame
+    -rot <title-bar> @top grid-add
+    swap >>content
+    dup content>> @center grid-add ;
+    
+M: closable-gadget focusable-child* content>> ;
diff --git a/extra/ui/gadgets/labelled/summary.txt b/basis/ui/gadgets/labelled/summary.txt
similarity index 100%
rename from extra/ui/gadgets/labelled/summary.txt
rename to basis/ui/gadgets/labelled/summary.txt
diff --git a/extra/ui/gadgets/grids/authors.txt b/basis/ui/gadgets/labels/authors.txt
similarity index 100%
rename from extra/ui/gadgets/grids/authors.txt
rename to basis/ui/gadgets/labels/authors.txt
diff --git a/extra/ui/gadgets/labels/labels-docs.factor b/basis/ui/gadgets/labels/labels-docs.factor
similarity index 100%
rename from extra/ui/gadgets/labels/labels-docs.factor
rename to basis/ui/gadgets/labels/labels-docs.factor
diff --git a/basis/ui/gadgets/labels/labels.factor b/basis/ui/gadgets/labels/labels.factor
new file mode 100755
index 0000000000..ed951824b8
--- /dev/null
+++ b/basis/ui/gadgets/labels/labels.factor
@@ -0,0 +1,74 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays hashtables io kernel math namespaces
+opengl sequences strings splitting
+ui.gadgets ui.gadgets.tracks ui.gadgets.theme ui.render colors
+models ;
+IN: ui.gadgets.labels
+
+! A label gadget draws a string.
+TUPLE: label < gadget text font color ;
+
+: label-string ( label -- string )
+    text>> dup string? [ "\n" join ] unless ; inline
+
+: set-label-string ( string label -- )
+    CHAR: \n pick memq? [
+        >r string-lines r> (>>text)
+    ] [
+        (>>text)
+    ] if ; inline
+
+: label-theme ( gadget -- gadget )
+    sans-serif-font >>font
+    black >>color ; inline
+
+: new-label ( string class -- label )
+    new-gadget
+    [ set-label-string ] keep
+    label-theme ; inline
+
+: <label> ( string -- label )
+    label new-label ;
+
+M: label pref-dim*
+    [ font>> open-font ] [ text>> ] bi text-dim ;
+
+M: label draw-gadget*
+    [ color>> set-color ]
+    [ [ font>> ] [ text>> ] bi origin get draw-text ] bi ;
+
+M: label gadget-text* label-string % ;
+
+TUPLE: label-control < label ;
+
+M: label-control model-changed
+    swap value>> over set-label-string relayout ;
+
+: <label-control> ( model -- gadget )
+    "" label-control new-label
+        swap >>model ;
+
+: text-theme ( gadget -- gadget )
+    black >>color
+    monospace-font >>font ;
+
+: reverse-video-theme ( label -- label )
+    white >>color
+    black solid-interior ;
+
+GENERIC: >label ( obj -- gadget )
+M: string >label <label> ;
+M: array >label <label> ;
+M: object >label ;
+M: f >label drop <gadget> ;
+
+: label-on-left ( gadget label -- button )
+  { 1 0 } <track>
+    swap >label f track-add
+    swap        1 track-add ;
+    
+: label-on-right ( label gadget -- button )
+  { 1 0 } <track>
+    swap        f track-add
+    swap >label 1 track-add ;
diff --git a/extra/ui/gadgets/labels/summary.txt b/basis/ui/gadgets/labels/summary.txt
similarity index 100%
rename from extra/ui/gadgets/labels/summary.txt
rename to basis/ui/gadgets/labels/summary.txt
diff --git a/extra/ui/gadgets/incremental/authors.txt b/basis/ui/gadgets/lists/authors.txt
similarity index 100%
rename from extra/ui/gadgets/incremental/authors.txt
rename to basis/ui/gadgets/lists/authors.txt
diff --git a/extra/ui/gadgets/lists/lists-docs.factor b/basis/ui/gadgets/lists/lists-docs.factor
similarity index 100%
rename from extra/ui/gadgets/lists/lists-docs.factor
rename to basis/ui/gadgets/lists/lists-docs.factor
diff --git a/extra/ui/gadgets/lists/lists-tests.factor b/basis/ui/gadgets/lists/lists-tests.factor
similarity index 100%
rename from extra/ui/gadgets/lists/lists-tests.factor
rename to basis/ui/gadgets/lists/lists-tests.factor
diff --git a/extra/ui/gadgets/lists/lists.factor b/basis/ui/gadgets/lists/lists.factor
similarity index 67%
rename from extra/ui/gadgets/lists/lists.factor
rename to basis/ui/gadgets/lists/lists.factor
index fd5234ab03..67c0ccc496 100755
--- a/extra/ui/gadgets/lists/lists.factor
+++ b/basis/ui/gadgets/lists/lists.factor
@@ -1,65 +1,70 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: ui.commands ui.gestures ui.render ui.gadgets
+USING: accessors ui.commands ui.gestures ui.render ui.gadgets
 ui.gadgets.labels ui.gadgets.scrollers
 kernel sequences models opengl math math.order namespaces
 ui.gadgets.presentations ui.gadgets.viewports ui.gadgets.packs
-math.vectors classes.tuple ;
+math.vectors classes.tuple math.geometry.rect colors ;
+
 IN: ui.gadgets.lists
 
-TUPLE: list index presenter color hook ;
+TUPLE: list < pack index presenter color hook ;
 
-: list-theme ( list -- )
-    { 0.8 0.8 1.0 1.0 } swap set-list-color ;
+: list-theme ( list -- list )
+    T{ rgba f 0.8 0.8 1.0 1.0 } >>color ; inline
 
 : <list> ( hook presenter model -- gadget )
-    <filled-pile> list construct-control
-    [ set-list-presenter ] keep
-    [ set-list-hook ] keep
-    0 over set-list-index
-    dup list-theme ;
+    list new-gadget
+        { 0 1 } >>orientation
+        1 >>fill
+        0 >>index
+        swap >>model
+        swap >>presenter
+        swap >>hook
+        list-theme ;
 
 : calc-bounded-index ( n list -- m )
     control-value length 1- min 0 max ;
 
 : bound-index ( list -- )
-    dup list-index over calc-bounded-index
-    swap set-list-index ;
+    dup index>> over calc-bounded-index
+    swap (>>index) ;
 
 : list-presentation-hook ( list -- quot )
-    list-hook [ [ [ list? ] is? ] find-parent ] prepend ;
+    hook>> [ [ list? ] find-parent ] prepend ;
 
 : <list-presentation> ( hook elt presenter -- gadget )
-    keep <presentation>
-    [ set-presentation-hook ] keep
-    [ text-theme ] keep ;
+    keep >r >label text-theme r>
+    <presentation>
+    swap >>hook ; inline
 
 : <list-items> ( list -- seq )
-    dup list-presentation-hook
-    over list-presenter
-    rot control-value [
+    [ list-presentation-hook ]
+    [ presenter>> ]
+    [ control-value ]
+    tri [
         >r 2dup r> swap <list-presentation>
     ] map 2nip ;
 
 M: list model-changed
     nip
     dup clear-gadget
-    dup <list-items> over add-gadgets
+    dup <list-items> over swap add-gadgets drop
     bound-index ;
 
 : selected-rect ( list -- rect )
-    dup list-index swap gadget-children ?nth ;
+    dup index>> swap children>> ?nth ;
 
 M: list draw-gadget*
     origin get [
-        dup list-color gl-color
+        dup color>> set-color
         selected-rect [ rect-extent gl-fill-rect ] when*
     ] with-translation ;
 
 M: list focusable-child* drop t ;
 
 : list-value ( list -- object )
-    dup list-index swap control-value ?nth ;
+    dup index>> swap control-value ?nth ;
 
 : scroll>selected ( list -- )
     #! We change the rectangle's width to zero to avoid
@@ -74,26 +79,26 @@ M: list focusable-child* drop t ;
         2drop
     ] [
         [ control-value length rem ] keep
-        [ set-list-index ] keep
+        [ (>>index) ] keep
         [ relayout-1 ] keep
         scroll>selected
     ] if ;
 
 : select-previous ( list -- )
-    dup list-index 1- swap select-index ;
+    dup index>> 1- swap select-index ;
 
 : select-next ( list -- )
-    dup list-index 1+ swap select-index ;
+    dup index>> 1+ swap select-index ;
 
 : invoke-value-action ( list -- )
     dup list-empty? [
-        dup list-hook call
+        dup hook>> call
     ] [
-        dup list-index swap nth-gadget invoke-secondary
+        dup index>> swap nth-gadget invoke-secondary
     ] if ;
 
 : select-gadget ( gadget list -- )
-    swap over gadget-children index
+    swap over children>> index
     [ swap select-index ] [ drop ] if* ;
 
 : clamp-loc ( point max -- point )
diff --git a/extra/ui/gadgets/lists/summary.txt b/basis/ui/gadgets/lists/summary.txt
similarity index 100%
rename from extra/ui/gadgets/lists/summary.txt
rename to basis/ui/gadgets/lists/summary.txt
diff --git a/extra/ui/gadgets/labelled/authors.txt b/basis/ui/gadgets/menus/authors.txt
similarity index 100%
rename from extra/ui/gadgets/labelled/authors.txt
rename to basis/ui/gadgets/menus/authors.txt
diff --git a/extra/ui/gadgets/menus/menus-docs.factor b/basis/ui/gadgets/menus/menus-docs.factor
similarity index 100%
rename from extra/ui/gadgets/menus/menus-docs.factor
rename to basis/ui/gadgets/menus/menus-docs.factor
diff --git a/extra/ui/gadgets/menus/menus.factor b/basis/ui/gadgets/menus/menus.factor
similarity index 65%
rename from extra/ui/gadgets/menus/menus.factor
rename to basis/ui/gadgets/menus/menus.factor
index 34051eaac0..26e405f6db 100644
--- a/extra/ui/gadgets/menus/menus.factor
+++ b/basis/ui/gadgets/menus/menus.factor
@@ -1,32 +1,33 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui.commands ui.gadgets ui.gadgets.buttons
+USING: accessors arrays ui.commands ui.gadgets ui.gadgets.buttons
 ui.gadgets.worlds ui.gestures generic hashtables kernel math
 models namespaces opengl sequences math.vectors
-ui.gadgets.theme ui.gadgets.packs ui.gadgets.borders colors ;
+ui.gadgets.theme ui.gadgets.packs ui.gadgets.borders colors
+math.geometry.rect ;
 IN: ui.gadgets.menus
 
 : menu-loc ( world menu -- loc )
     >r rect-dim r> pref-dim [v-] hand-loc get-global vmin ;
 
-TUPLE: menu-glass ;
+TUPLE: menu-glass < gadget ;
 
 : <menu-glass> ( menu world -- glass )
-    menu-glass construct-gadget
-    >r over menu-loc over set-rect-loc r>
-    [ add-gadget ] keep ;
+    menu-glass new-gadget
+    >r over menu-loc >>loc r>
+    [ swap add-gadget drop ] keep ;
 
 M: menu-glass layout* gadget-child prefer ;
 
 : hide-glass ( world -- )
-    dup world-glass [ unparent ] when*
-    f swap set-world-glass ;
+    dup glass>> [ unparent ] when*
+    f swap (>>glass) ;
 
 : show-glass ( gadget world -- )
     over hand-clicked set-global
     [ hide-glass ] keep
-    [ add-gadget ] 2keep
-    set-world-glass ;
+    [ swap add-gadget drop ] 2keep
+    (>>glass) ;
 
 : show-menu ( gadget owner -- )
     find-world [ <menu-glass> ] keep show-glass ;
@@ -42,11 +43,12 @@ M: menu-glass layout* gadget-child prefer ;
     [ hand-clicked get find-world hide-glass ]
     3append <roll-button> ;
 
-: menu-theme ( gadget -- )
-    dup light-gray solid-interior
+: menu-theme ( gadget -- gadget )
+    light-gray solid-interior
     faint-boundary ;
 
 : <commands-menu> ( hook target commands -- gadget )
-    [
-        [ >r 2dup r> <menu-item> gadget, ] each 2drop
-    ] make-filled-pile 5 <border> dup menu-theme ;
+  <filled-pile>
+  -roll
+    [ <menu-item> add-gadget ] with with each
+  5 <border> menu-theme ;
diff --git a/extra/ui/gadgets/menus/summary.txt b/basis/ui/gadgets/menus/summary.txt
similarity index 100%
rename from extra/ui/gadgets/menus/summary.txt
rename to basis/ui/gadgets/menus/summary.txt
diff --git a/extra/ui/gadgets/labels/authors.txt b/basis/ui/gadgets/packs/authors.txt
similarity index 100%
rename from extra/ui/gadgets/labels/authors.txt
rename to basis/ui/gadgets/packs/authors.txt
diff --git a/basis/ui/gadgets/packs/packs-docs.factor b/basis/ui/gadgets/packs/packs-docs.factor
new file mode 100755
index 0000000000..14a229067b
--- /dev/null
+++ b/basis/ui/gadgets/packs/packs-docs.factor
@@ -0,0 +1,60 @@
+USING: ui.gadgets help.markup help.syntax generic kernel
+classes.tuple quotations ;
+IN: ui.gadgets.packs
+
+ARTICLE: "ui-pack-layout" "Pack layouts"
+"Pack gadgets layout their children along a single axis."
+{ $subsection pack }
+"Creating empty packs:"
+{ $subsection <pack> }
+{ $subsection <pile> }
+{ $subsection <shelf> }
+
+"For more control, custom layouts can reuse portions of pack layout logic:"
+{ $subsection pack-pref-dim }
+{ $subsection pack-layout } ;
+
+HELP: pack
+{ $class-description "A gadget which lays out its children along a single axis stored in the " { $snippet "orientation" } " slot. Can be constructed with one of the following words:"
+{ $list
+    { $link <pack> }
+    { $link <pile> }
+    { $link <shelf> }
+}
+"Packs have the following slots:"
+{ $list
+    { { $snippet "align" } " a rational number between 0 and 1, the alignment of gadgets along the axis perpendicular to the pack's orientation" }
+    { { $snippet "fill" } " a rational number between 0 and 1, where 0 gives each gadget its preferred size and 1 fills the dimension perpendicular to the pack's orientation" }
+    { { $snippet "gap" } " a pair of integers, the horizontal and vertical gap between children" }
+}
+"Custom gadgets can inherit from the " { $link pack } " class and implement their own " { $link pref-dim* } " and " { $link layout* } " methods, reusing pack layout logic by calling " { $link pack-pref-dim } " and " { $link pack-layout } "." } ;
+
+HELP: pack-layout
+{ $values { "pack" "a new " { $link pack } } { "sizes" "a sequence of pairs of integers" } }
+{ $description "Lays out the pack's children along the " { $snippet "orientation" } " of the pack, with each gadget receiving its size from the corresponding index of the " { $snippet "sizes" } " sequence." }
+{ $notes
+    "This word is useful if you are writing your own layout gadget which inherits from " { $link pack } ". This allows you to reuse layout logic while computing gadget sizes using a custom procedure."
+} ;
+
+HELP: <pack>
+{ $values { "orientation" "an orientation specifier" } { "pack" "a new " { $link pack } } }
+{ $description "Creates a new pack which lays out children along the given axis. Children are laid out vertically if the orientation is " { $snippet "{ 0 1 }" } " and horizontally if the orientation is " { $snippet "{ 1 0 }" } "." } ;
+
+{ <pack> <pile> <shelf> } related-words
+
+HELP: <pile>
+{ $values { "pack" "a new " { $link pack } } }
+{ $description "Creates a new " { $link pack } " which lays out its children vertically." } ;
+
+HELP: <shelf>
+{ $values { "pack" "a new " { $link pack } } }
+{ $description "Creates a new " { $link pack } " which lays out its children horizontally." } ;
+
+HELP: pack-pref-dim
+{ $values { "gadget" gadget } { "sizes" "a sequence of pairs of integers" } { "dim" "a pair of integers" } }
+{ $description "Computes the preferred size of a pack, with each gadget receiving its size from the corresponding index of the " { $snippet "sizes" } " sequence." }
+{ $notes
+    "This word is useful if you are writing your own layout gadget which inherits from " { $link pack } ". This allows you to reuse layout logic while computing gadget sizes using a custom procedure."
+} ;
+
+ABOUT: "ui-pack-layout"
diff --git a/extra/ui/gadgets/packs/packs-tests.factor b/basis/ui/gadgets/packs/packs-tests.factor
similarity index 60%
rename from extra/ui/gadgets/packs/packs-tests.factor
rename to basis/ui/gadgets/packs/packs-tests.factor
index 28a656e2ad..065267d7be 100644
--- a/extra/ui/gadgets/packs/packs-tests.factor
+++ b/basis/ui/gadgets/packs/packs-tests.factor
@@ -1,14 +1,12 @@
 IN: ui.gadgets.packs.tests
 USING: ui.gadgets.packs ui.gadgets.labels ui.gadgets ui.render
-kernel namespaces tools.test math.parser sequences ;
+kernel namespaces tools.test math.parser sequences math.geometry.rect ;
 
 [ t ] [
     { 0 0 } { 100 100 } <rect> clip set
 
-    [
-        100 [ number>string <label> gadget, ] each
-    ] make-pile
-
+    <pile>
+      100 [ number>string <label> add-gadget ] each
     dup layout
 
     visible-children [ label? ] all?
diff --git a/basis/ui/gadgets/packs/packs.factor b/basis/ui/gadgets/packs/packs.factor
new file mode 100755
index 0000000000..207708afdf
--- /dev/null
+++ b/basis/ui/gadgets/packs/packs.factor
@@ -0,0 +1,62 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences ui.gadgets kernel math math.functions
+math.vectors namespaces math.order accessors math.geometry.rect ;
+IN: ui.gadgets.packs
+
+TUPLE: pack < gadget
+  { align initial: 0       }
+  { fill  initial: 0       }
+  { gap   initial: { 0 0 } } ;
+
+: packed-dim-2 ( gadget sizes -- list )
+    [ over rect-dim over v- rot fill>> v*n v+ ] with map ;
+
+: packed-dims ( gadget sizes -- seq )
+    2dup packed-dim-2 swap orient ;
+
+: gap-locs ( gap sizes -- seq )
+    { 0 0 } [ v+ over v+ ] accumulate 2nip ;
+
+: aligned-locs ( gadget sizes -- seq )
+    [ >r dup align>> swap rect-dim r> v- n*v ] with map ;
+
+: packed-locs ( gadget sizes -- seq )
+    over gap>> over gap-locs >r dupd aligned-locs r> orient ;
+
+: round-dims ( seq -- newseq )
+    { 0 0 } swap
+    [ swap v- dup [ ceiling >fixnum ] map [ swap v- ] keep ] map
+    nip ;
+
+: pack-layout ( pack sizes -- )
+    round-dims over children>>
+    >r dupd packed-dims r> 2dup [ (>>dim) ] 2each
+    >r packed-locs r> [ (>>loc) ] 2each ;
+
+: <pack> ( orientation -- pack )
+    pack new-gadget
+        swap >>orientation ;
+
+: <pile> ( -- pack ) { 0 1 } <pack> ;
+
+: <filled-pile> ( -- pack ) <pile> 1 over (>>fill) ;
+
+: <shelf> ( -- pack ) { 1 0 } <pack> ;
+
+: gap-dims ( gap sizes -- seeq )
+    [ dim-sum ] keep length 1 [-] rot n*v v+ ;
+
+: pack-pref-dim ( gadget sizes -- dim )
+    over gap>> over gap-dims >r max-dim r>
+    rot orientation>> set-axis ;
+
+M: pack pref-dim*
+    dup children>> pref-dims pack-pref-dim ;
+
+M: pack layout*
+    dup children>> pref-dims pack-layout ;
+
+M: pack children-on ( rect gadget -- seq )
+    dup orientation>> swap children>>
+    [ fast-children-on ] keep <slice> ;
diff --git a/extra/ui/gadgets/packs/summary.txt b/basis/ui/gadgets/packs/summary.txt
similarity index 100%
rename from extra/ui/gadgets/packs/summary.txt
rename to basis/ui/gadgets/packs/summary.txt
diff --git a/extra/ui/gadgets/lists/authors.txt b/basis/ui/gadgets/panes/authors.txt
similarity index 100%
rename from extra/ui/gadgets/lists/authors.txt
rename to basis/ui/gadgets/panes/authors.txt
diff --git a/extra/ui/gadgets/panes/panes-docs.factor b/basis/ui/gadgets/panes/panes-docs.factor
similarity index 100%
rename from extra/ui/gadgets/panes/panes-docs.factor
rename to basis/ui/gadgets/panes/panes-docs.factor
diff --git a/extra/ui/gadgets/panes/panes-tests.factor b/basis/ui/gadgets/panes/panes-tests.factor
similarity index 92%
rename from extra/ui/gadgets/panes/panes-tests.factor
rename to basis/ui/gadgets/panes/panes-tests.factor
index 31bb4233bf..109c0a1461 100755
--- a/extra/ui/gadgets/panes/panes-tests.factor
+++ b/basis/ui/gadgets/panes/panes-tests.factor
@@ -1,17 +1,18 @@
-IN: ui.gadgets.panes.tests
 USING: alien ui.gadgets.panes ui.gadgets namespaces
 kernel sequences io io.styles io.streams.string tools.test
 prettyprint definitions help help.syntax help.markup
-help.stylesheet splitting tools.test.ui models math inspector ;
+help.stylesheet splitting tools.test.ui models math summary
+inspector accessors ;
+IN: ui.gadgets.panes.tests
 
-: #children "pane" get gadget-children length ;
+: #children "pane" get children>> length ;
 
 [ ] [ <pane> "pane" set ] unit-test
 
 [ ] [ #children "num-children" set ] unit-test
 
 [ ] [
-    "pane" get <pane-stream> [ 10000 [ . ] each ] with-output-stream*
+    "pane" get <pane-stream> [ 100 [ . ] each ] with-output-stream*
 ] unit-test
 
 [ t ] [ #children "num-children" get = ] unit-test
diff --git a/extra/ui/gadgets/panes/panes.factor b/basis/ui/gadgets/panes/panes.factor
similarity index 56%
rename from extra/ui/gadgets/panes/panes.factor
rename to basis/ui/gadgets/panes/panes.factor
index 2b83e7db71..7f00084104 100755
--- a/extra/ui/gadgets/panes/panes.factor
+++ b/basis/ui/gadgets/panes/panes.factor
@@ -1,58 +1,55 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays ui.gadgets ui.gadgets.borders ui.gadgets.buttons
-ui.gadgets.labels ui.gadgets.scrollers
-ui.gadgets.paragraphs ui.gadgets.incremental ui.gadgets.packs
-ui.gadgets.theme ui.clipboards ui.gestures ui.traverse ui.render
-hashtables io kernel namespaces sequences io.styles strings
-quotations math opengl combinators math.vectors
-sorting splitting io.streams.nested assocs
-ui.gadgets.presentations ui.gadgets.slots ui.gadgets.grids
-ui.gadgets.grid-lines classes.tuple models continuations
-destructors accessors ;
+       ui.gadgets.labels ui.gadgets.scrollers
+       ui.gadgets.paragraphs ui.gadgets.incremental ui.gadgets.packs
+       ui.gadgets.theme ui.clipboards ui.gestures ui.traverse ui.render
+       hashtables io kernel namespaces sequences io.styles strings
+       quotations math opengl combinators math.vectors
+       sorting splitting io.streams.nested assocs
+       ui.gadgets.presentations ui.gadgets.slots ui.gadgets.grids
+       ui.gadgets.grid-lines classes.tuple models continuations
+       destructors accessors math.geometry.rect ;
+
 IN: ui.gadgets.panes
 
-TUPLE: pane output current prototype scrolls?
-selection-color caret mark selecting? ;
+TUPLE: pane < pack
+       output current prototype scrolls?
+       selection-color caret mark selecting? ;
 
-: clear-selection ( pane -- )
-    f over set-pane-caret
-    f swap set-pane-mark ;
+: clear-selection ( pane -- pane ) f >>caret f >>mark ;
 
-: add-output 2dup set-pane-output add-gadget ;
+: add-output  ( pane current -- pane ) [ >>output  ] [ add-gadget ] bi ;
+: add-current ( pane current -- pane ) [ >>current ] [ add-gadget ] bi ;
 
-: add-current 2dup set-pane-current add-gadget ;
+: prepare-line ( pane -- pane )
+  clear-selection
+  dup prototype>> clone add-current ;
 
-: prepare-line ( pane -- )
-    dup clear-selection
-    dup pane-prototype clone swap add-current ;
-
-: pane-caret&mark ( pane -- caret mark )
-    dup pane-caret swap pane-mark ;
+: pane-caret&mark ( pane -- caret mark ) [ caret>> ] [ mark>> ] bi ;
 
 : selected-children ( pane -- seq )
     [ pane-caret&mark sort-pair ] keep gadget-subtree ;
 
 M: pane gadget-selection? pane-caret&mark and ;
 
-M: pane gadget-selection
-    selected-children gadget-text ;
+M: pane gadget-selection ( pane -- string/f ) selected-children gadget-text ;
 
 : pane-clear ( pane -- )
-    dup clear-selection
-    dup pane-output clear-incremental
-    pane-current clear-gadget ;
+  clear-selection
+  [ output>> clear-incremental ]
+  [ current>> clear-gadget ]
+  bi ;
 
-: pane-theme ( editor -- )
-    selection-color swap set-pane-selection-color ;
+: new-pane ( class -- pane )
+    new-gadget
+        { 0 1 } >>orientation
+        <shelf> >>prototype
+        <incremental> add-output
+        prepare-line
+        selection-color >>selection-color ;
 
-: <pane> ( -- pane )
-    pane new
-    <pile> over set-delegate
-    <shelf> over set-pane-prototype
-    <pile> <incremental> over add-output
-    dup prepare-line
-    dup pane-theme ;
+: <pane> ( -- pane ) pane new-pane ;
 
 GENERIC: draw-selection ( loc obj -- )
 
@@ -63,15 +60,15 @@ M: gadget draw-selection ( loc gadget -- )
     swap offset-rect [ rect-extent gl-fill-rect ] if-fits ;
 
 M: node draw-selection ( loc node -- )
-    2dup node-value swap offset-rect [
+    2dup value>> swap offset-rect [
         drop 2dup
-        [ node-value rect-loc v+ ] keep
-        node-children [ draw-selection ] with each
+        [ value>> rect-loc v+ ] keep
+        children>> [ draw-selection ] with each
     ] if-fits 2drop ;
 
 M: pane draw-gadget*
     dup gadget-selection? [
-        dup pane-selection-color gl-color
+        dup selection-color>> set-color
         origin get over rect-loc v- swap selected-children
         [ draw-selection ] with each
     ] [
@@ -79,40 +76,40 @@ M: pane draw-gadget*
     ] if ;
 
 : scroll-pane ( pane -- )
-    dup pane-scrolls? [ scroll>bottom ] [ drop ] if ;
+    dup scrolls?>> [ scroll>bottom ] [ drop ] if ;
 
 TUPLE: pane-stream pane ;
 
 C: <pane-stream> pane-stream
 
 : smash-line ( current -- gadget )
-    dup gadget-children {
+    dup children>> {
         { [ dup empty? ] [ 2drop "" <label> ] }
         { [ dup length 1 = ] [ nip first ] }
         [ drop ]
     } cond ;
 
-: smash-pane ( pane -- gadget ) pane-output smash-line ;
+: smash-pane ( pane -- gadget ) output>> smash-line ;
 
-: pane-nl ( pane -- )
-    dup pane-current dup unparent smash-line
-    over pane-output add-incremental
+: pane-nl ( pane -- pane )
+    dup current>> dup unparent smash-line
+    over output>> add-incremental
     prepare-line ;
 
 : pane-write ( pane seq -- )
-    [ dup pane-nl ]
-    [ over pane-current stream-write ]
+    [ pane-nl ]
+    [ over current>> stream-write ]
     interleave drop ;
 
 : pane-format ( style pane seq -- )
-    [ dup pane-nl ]
-    [ 2over pane-current stream-format ]
+    [ pane-nl ]
+    [ 2over current>> stream-format ]
     interleave 2drop ;
 
 GENERIC: write-gadget ( gadget stream -- )
 
-M: pane-stream write-gadget
-    pane-stream-pane pane-current add-gadget ;
+M: pane-stream write-gadget ( gadget pane-stream -- )
+   pane>> current>> swap add-gadget drop ;
 
 M: style-stream write-gadget
     stream>> write-gadget ;
@@ -124,7 +121,7 @@ M: style-stream write-gadget
     output-stream get print-gadget ;
 
 : ?nl ( stream -- )
-    dup pane-stream-pane pane-current gadget-children empty?
+    dup pane>> current>> children>> empty?
     [ dup stream-nl ] unless drop ;
 
 : with-pane ( pane quot -- )
@@ -135,26 +132,26 @@ M: style-stream write-gadget
 : make-pane ( quot -- gadget )
     <pane> [ swap with-pane ] keep smash-pane ; inline
 
-: <scrolling-pane> ( -- pane )
-    <pane> t over set-pane-scrolls? ;
+: <scrolling-pane> ( -- pane ) <pane> t over (>>scrolls?) ;
 
-TUPLE: pane-control quot ;
+TUPLE: pane-control < pane quot ;
 
-M: pane-control model-changed
-    swap model-value swap dup pane-control-quot with-pane ;
+M: pane-control model-changed ( model pane-control -- )
+   [ value>> ] [ dup quot>> ] bi* with-pane ;
 
 : <pane-control> ( model quot -- pane )
-    >r <pane> pane-control construct-control r>
-    over set-pane-control-quot ;
+    pane-control new-pane
+        swap >>quot
+        swap >>model ;
 
 : do-pane-stream ( pane-stream quot -- )
-    >r pane-stream-pane r> keep scroll-pane ; inline
+    >r pane>> r> keep scroll-pane ; inline
 
 M: pane-stream stream-nl
-    [ pane-nl ] do-pane-stream ;
+    [ pane-nl drop ] do-pane-stream ;
 
 M: pane-stream stream-write1
-    [ pane-current stream-write1 ] do-pane-stream ;
+    [ current>> stream-write1 ] do-pane-stream ;
 
 M: pane-stream stream-write
     [ swap string-lines pane-write ] do-pane-stream ;
@@ -175,10 +172,10 @@ M: pane-stream make-span-stream
     >r pick at r> when* ; inline
 
 : apply-foreground-style ( style gadget -- style gadget )
-    foreground [ over set-label-color ] apply-style ;
+    foreground [ over (>>color) ] apply-style ;
 
 : apply-background-style ( style gadget -- style gadget )
-    background [ dupd solid-interior ] apply-style ;
+    background [ solid-interior ] apply-style ;
 
 : specified-font ( style -- font )
     [ font swap at "monospace" or ] keep
@@ -186,32 +183,34 @@ M: pane-stream make-span-stream
     font-size swap at 12 or 3array ;
 
 : apply-font-style ( style gadget -- style gadget )
-    over specified-font over set-label-font ;
+    over specified-font over (>>font) ;
 
 : apply-presentation-style ( style gadget -- style gadget )
     presented [ <presentation> ] apply-style ;
 
-: <styled-label> ( style text -- gadget )
-    <label>
+: style-label ( style gadget -- gadget )
     apply-foreground-style
     apply-background-style
     apply-font-style
     apply-presentation-style
-    nip ;
+    nip ; inline
+
+: <styled-label> ( style text -- gadget )
+    <label> style-label ;
 
 ! Paragraph styles
 
 : apply-wrap-style ( style pane -- style pane )
     wrap-margin [
-        2dup <paragraph> swap set-pane-prototype
-        <paragraph> over set-pane-current
+        2dup <paragraph> >>prototype drop
+        <paragraph> >>current
     ] apply-style ;
 
 : apply-border-color-style ( style gadget -- style gadget )
-    border-color [ dupd solid-boundary ] apply-style ;
+    border-color [ solid-boundary ] apply-style ;
 
 : apply-page-color-style ( style gadget -- style gadget )
-    page-color [ dupd solid-interior ] apply-style ;
+    page-color [ solid-interior ] apply-style ;
 
 : apply-path-style ( style gadget -- style gadget )
     presented-path [ <editable-slot> ] apply-style ;
@@ -220,9 +219,7 @@ M: pane-stream make-span-stream
     border-width [ <border> ] apply-style ;
 
 : apply-printer-style ( style gadget -- style gadget )
-    presented-printer [
-        [ make-pane ] curry over set-editable-slot-printer
-    ] apply-style ;
+    presented-printer [ [ make-pane ] curry >>printer ] apply-style ;
 
 : style-pane ( style pane -- pane )
     apply-border-width-style
@@ -233,54 +230,53 @@ M: pane-stream make-span-stream
     apply-printer-style
     nip ;
 
-TUPLE: nested-pane-stream style parent ;
+TUPLE: nested-pane-stream < pane-stream style parent ;
 
-: <nested-pane-stream> ( style parent -- stream )
-    >r <pane> apply-wrap-style <pane-stream> r> {
-        set-nested-pane-stream-style
-        set-delegate
-        set-nested-pane-stream-parent
-    } nested-pane-stream construct ;
+: new-nested-pane-stream ( style parent class -- stream )
+    new
+        swap >>parent
+        swap <pane> apply-wrap-style [ >>style ] [ >>pane ] bi* ;
+    inline
 
 : unnest-pane-stream ( stream -- child parent )
     dup ?nl
-    dup nested-pane-stream-style
-    over pane-stream-pane smash-pane style-pane
-    swap nested-pane-stream-parent ;
+    dup style>>
+    over pane>> smash-pane style-pane
+    swap parent>> ;
 
-TUPLE: pane-block-stream ;
+TUPLE: pane-block-stream < nested-pane-stream ;
 
 M: pane-block-stream dispose
     unnest-pane-stream write-gadget ;
 
 M: pane-stream make-block-stream
-    <nested-pane-stream> pane-block-stream construct-delegate ;
+    pane-block-stream new-nested-pane-stream ;
 
 ! Tables
 : apply-table-gap-style ( style grid -- style grid )
-    table-gap [ over set-grid-gap ] apply-style ;
+    table-gap [ over (>>gap) ] apply-style ;
 
 : apply-table-border-style ( style grid -- style grid )
-    table-border [ <grid-lines> over set-gadget-boundary ]
+    table-border [ <grid-lines> over (>>boundary) ]
     apply-style ;
 
 : styled-grid ( style grid -- grid )
     <grid>
-    f over set-grid-fill?
+    f over (>>fill?)
     apply-table-gap-style
     apply-table-border-style
     nip ;
 
-TUPLE: pane-cell-stream ;
+TUPLE: pane-cell-stream < nested-pane-stream ;
 
 M: pane-cell-stream dispose ?nl ;
 
 M: pane-stream make-cell-stream
-    <nested-pane-stream> pane-cell-stream construct-delegate ;
+    pane-cell-stream new-nested-pane-stream ;
 
 M: pane-stream stream-write-table
     >r
-    swap [ [ pane-stream-pane smash-pane ] map ] map
+    swap [ [ pane>> smash-pane ] map ] map
     styled-grid
     r> print-gadget ;
 
@@ -290,16 +286,13 @@ M: pack dispose drop ;
 M: paragraph dispose drop ;
 
 : gadget-write ( string gadget -- )
-    over empty? [
-        2drop
-    ] [
-        >r <label> dup text-theme r> add-gadget
-    ] if ;
+    over empty?
+    [ 2drop ] [ >r <label> text-theme r> swap add-gadget drop ] if ;
 
 M: pack stream-write gadget-write ;
 
 : gadget-bl ( style stream -- )
-    >r " " <styled-label> <word-break-gadget> r> add-gadget ;
+    >r " " <word-break-gadget> style-label r> swap add-gadget drop ;
 
 M: paragraph stream-write
     swap " " split
@@ -317,7 +310,7 @@ M: paragraph stream-write1
 
 : gadget-format ( string style stream -- )
     pick empty?
-    [ 3drop ] [ >r swap <styled-label> r> add-gadget ] if ;
+    [ 3drop ] [ >r swap <styled-label> r> swap add-gadget drop ] if ;
 
 M: pack stream-format
     gadget-format ;
@@ -332,18 +325,17 @@ M: paragraph stream-format
         2drop
     ] if ;
 
-: caret>mark ( pane -- )
-    dup pane-caret over set-pane-mark relayout-1 ;
+: caret>mark ( pane -- pane )
+  dup caret>> >>mark
+  dup relayout-1 ;
 
 GENERIC: sloppy-pick-up* ( loc gadget -- n )
 
-M: pack sloppy-pick-up*
-    dup gadget-orientation
-    swap gadget-children
-    (fast-children-on) ;
+M: pack sloppy-pick-up* ( loc gadget -- n )
+   [ orientation>> ] [ children>> ] bi (fast-children-on) ;
 
 M: gadget sloppy-pick-up*
-    gadget-children [ inside? ] with find-last drop ;
+    children>> [ inside? ] with find-last drop ;
 
 M: f sloppy-pick-up*
     2drop f ;
@@ -357,42 +349,40 @@ M: f sloppy-pick-up*
     [ 3drop { } ]
     if ;
 
-: move-caret ( pane -- )
-    dup hand-rel
-    over sloppy-pick-up
-    over set-pane-caret
-    relayout-1 ;
+: move-caret ( pane -- pane )
+  dup hand-rel
+  over sloppy-pick-up
+  over (>>caret)
+  dup relayout-1 ;
 
-: begin-selection ( pane -- )
-    dup move-caret f swap set-pane-mark ;
+: begin-selection ( pane -- ) move-caret f swap (>>mark) ;
 
 : extend-selection ( pane -- )
     hand-moved? [
-        dup pane-selecting? [
-            dup move-caret
+        dup selecting?>> [
+            move-caret
         ] [
             dup hand-clicked get child? [
-                t over set-pane-selecting?
+                t >>selecting?
                 dup hand-clicked set-global
-                dup move-caret
-                dup caret>mark
+                move-caret
+                caret>mark
             ] when
         ] if
-        dup dup pane-caret gadget-at-path scroll>gadget
+        dup dup caret>> gadget-at-path scroll>gadget
     ] when drop ;
 
 : end-selection ( pane -- )
-    f over set-pane-selecting?
+    f >>selecting?
     hand-moved? [
-        dup com-copy-selection
-        request-focus
+        [ com-copy-selection ] [ request-focus ] bi
     ] [
         relayout-1
     ] if ;
 
 : select-to-caret ( pane -- )
-    dup pane-mark [ dup caret>mark ] unless
-    dup move-caret
+    dup mark>> [ caret>mark ] unless
+    move-caret
     dup request-focus
     com-copy-selection ;
 
diff --git a/extra/ui/gadgets/panes/summary.txt b/basis/ui/gadgets/panes/summary.txt
similarity index 100%
rename from extra/ui/gadgets/panes/summary.txt
rename to basis/ui/gadgets/panes/summary.txt
diff --git a/extra/ui/gadgets/menus/authors.txt b/basis/ui/gadgets/paragraphs/authors.txt
similarity index 100%
rename from extra/ui/gadgets/menus/authors.txt
rename to basis/ui/gadgets/paragraphs/authors.txt
diff --git a/extra/ui/gadgets/paragraphs/paragraphs.factor b/basis/ui/gadgets/paragraphs/paragraphs.factor
similarity index 72%
rename from extra/ui/gadgets/paragraphs/paragraphs.factor
rename to basis/ui/gadgets/paragraphs/paragraphs.factor
index 9f375d0126..fed1fb97f1 100644
--- a/extra/ui/gadgets/paragraphs/paragraphs.factor
+++ b/basis/ui/gadgets/paragraphs/paragraphs.factor
@@ -1,24 +1,24 @@
 ! Copyright (C) 2005, 2007 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui.gadgets ui.gadgets.labels ui.render kernel math
-namespaces sequences math.order ;
+USING: accessors arrays ui.gadgets ui.gadgets.labels ui.render kernel math
+namespaces sequences math.order math.geometry.rect ;
 IN: ui.gadgets.paragraphs
 
 ! A word break gadget
-TUPLE: word-break-gadget ;
+TUPLE: word-break-gadget < label ;
 
-: <word-break-gadget> ( gadget -- gadget )
-    { set-delegate } word-break-gadget construct ;
+: <word-break-gadget> ( text -- gadget )
+    word-break-gadget new-label ;
 
 M: word-break-gadget draw-gadget* drop ;
 
 ! A gadget that arranges its children in a word-wrap style.
-TUPLE: paragraph margin ;
+TUPLE: paragraph < gadget margin ;
 
 : <paragraph> ( margin -- gadget )
-    paragraph construct-gadget
-    { 1 0 } over set-gadget-orientation
-    [ set-paragraph-margin ] keep ;
+    paragraph new-gadget
+    { 1 0 } over (>>orientation)
+    [ (>>margin) ] keep ;
 
 SYMBOL: x SYMBOL: max-x
 
@@ -30,7 +30,7 @@ SYMBOL: margin
 
 : overrun? ( width -- ? ) x get + margin get > ;
 
-: zero-vars [ 0 swap set ] each ;
+: zero-vars ( seq -- ) [ 0 swap set ] each ;
 
 : wrap-line ( -- )
     line-height get y +@
@@ -56,7 +56,7 @@ SYMBOL: margin
 : wrap-dim ( -- dim ) max-x get max-y get 2array ;
 
 : init-wrap ( paragraph -- )
-    paragraph-margin margin set
+    margin>> margin set
     { x max-x y max-y line-height } zero-vars ;
 
 : do-wrap ( paragraph quot -- dim )
@@ -69,4 +69,4 @@ M: paragraph pref-dim*
     [ 2drop ] do-wrap ;
 
 M: paragraph layout*
-    [ swap dup prefer set-rect-loc ] do-wrap drop ;
+    [ swap dup prefer (>>loc) ] do-wrap drop ;
diff --git a/extra/ui/gadgets/paragraphs/summary.txt b/basis/ui/gadgets/paragraphs/summary.txt
similarity index 100%
rename from extra/ui/gadgets/paragraphs/summary.txt
rename to basis/ui/gadgets/paragraphs/summary.txt
diff --git a/extra/ui/gadgets/packs/authors.txt b/basis/ui/gadgets/presentations/authors.txt
similarity index 100%
rename from extra/ui/gadgets/packs/authors.txt
rename to basis/ui/gadgets/presentations/authors.txt
diff --git a/extra/ui/gadgets/presentations/presentations-docs.factor b/basis/ui/gadgets/presentations/presentations-docs.factor
similarity index 65%
rename from extra/ui/gadgets/presentations/presentations-docs.factor
rename to basis/ui/gadgets/presentations/presentations-docs.factor
index f226df5c2a..c651e849a2 100755
--- a/extra/ui/gadgets/presentations/presentations-docs.factor
+++ b/basis/ui/gadgets/presentations/presentations-docs.factor
@@ -1,6 +1,6 @@
 USING: help.markup help.syntax ui.gadgets.buttons
-ui.gadgets.menus models ui.operations inspector kernel
-ui.gadgets.worlds ui.gadgets ;
+ui.gadgets.menus models ui.operations summary kernel
+ui.gadgets.worlds ui.gadgets ui.gadgets.status-bar ;
 IN: ui.gadgets.presentations
 
 HELP: presentation
@@ -10,23 +10,23 @@ $nl
 $nl
 "Presentations have two slots:"
 { $list
-    { { $link presentation-object } " - the object being presented." }
-    { { $link presentation-hook } " - a quotation with stack effect " { $snippet "( presentation -- )" } ". The default value is " { $snippet "[ drop ]" } "." }
+    { { $snippet "object" } " - the object being presented." }
+    { { $snippet "hook" } " - a quotation with stack effect " { $snippet "( presentation -- )" } ". The default value is " { $snippet "[ drop ]" } "." }
 } } ;
 
 HELP: invoke-presentation
 { $values { "presentation" presentation } { "command" "a command" } }
-{ $description "Calls the " { $link presentation-hook } " and then invokes the command on the " { $link presentation-object } "." } ;
+{ $description "Calls the " { $snippet "hook" } " and then invokes the command on the " { $snippet "object" } "." } ;
 
 { invoke-presentation invoke-primary invoke-secondary } related-words
 
 HELP: invoke-primary
 { $values { "presentation" presentation } } 
-{ $description "Invokes the " { $link primary-operation } " associated to the " { $link presentation-object } ". This word is executed when the presentation is clicked with the left mouse button." } ;
+{ $description "Invokes the " { $link primary-operation } " associated to the " { $snippet "object" } ". This word is executed when the presentation is clicked with the left mouse button." } ;
 
 HELP: invoke-secondary
 { $values { "presentation" presentation } } 
-{ $description "Invokes the " { $link secondary-operation } " associated to the " { $link presentation-object } ". This word is executed when a list receives a " { $snippet "RET" } " key press." } ;
+{ $description "Invokes the " { $link secondary-operation } " associated to the " { $snippet "object" } ". This word is executed when a list receives a " { $snippet "RET" } " key press." } ;
 
 HELP: <presentation>
 { $values { "label" "a label" } { "object" object } { "button" "a new " { $link button } } }
@@ -37,9 +37,11 @@ HELP: <presentation>
 
 { <commands-menu> <toolbar> operations-menu show-menu } related-words
 
+{ <status-bar> show-mouse-help show-status show-summary hide-status } related-words
+
 HELP: show-mouse-help
 { $values { "presentation" presentation } }
-{ $description "Displays a " { $link summary } " of the " { $link presentation-object } "in the status bar of the " { $link world } " containing this presentation. This word is executed when the mouse enters the presentation." } ;
+{ $description "Displays a " { $link summary } " of the " { $snippet "object" } "in the status bar of the " { $link world } " containing this presentation. This word is executed when the mouse enters the presentation." } ;
 
 ARTICLE: "ui.gadgets.presentations" "Presentation gadgets"
 "Outliner gadgets are usually not constructed directly, and instead are written to " { $link "ui.gadgets.panes" } " with formatted stream output words (" { $link "presentations" } ")."
diff --git a/extra/ui/gadgets/presentations/presentations-tests.factor b/basis/ui/gadgets/presentations/presentations-tests.factor
similarity index 65%
rename from extra/ui/gadgets/presentations/presentations-tests.factor
rename to basis/ui/gadgets/presentations/presentations-tests.factor
index 55ba2604e8..358bf2b791 100644
--- a/extra/ui/gadgets/presentations/presentations-tests.factor
+++ b/basis/ui/gadgets/presentations/presentations-tests.factor
@@ -1,14 +1,14 @@
-IN: ui.gadgets.presentations.tests
 USING: math ui.gadgets.presentations ui.gadgets tools.test
 prettyprint ui.gadgets.buttons io io.streams.string kernel
-classes.tuple ;
+classes.tuple accessors ;
+IN: ui.gadgets.presentations.tests
 
 [ t ] [
-    "Hi" \ + <presentation> [ gadget? ] is?
+    "Hi" \ + <presentation> gadget?
 ] unit-test
 
 [ "+" ] [
     [
-        \ + f \ pprint <command-button> dup button-quot call
+        \ + f \ pprint <command-button> dup quot>> call
     ] with-string-writer
 ] unit-test
diff --git a/extra/ui/gadgets/presentations/presentations.factor b/basis/ui/gadgets/presentations/presentations.factor
similarity index 55%
rename from extra/ui/gadgets/presentations/presentations.factor
rename to basis/ui/gadgets/presentations/presentations.factor
index 78e4deda53..c5f078e82e 100644
--- a/extra/ui/gadgets/presentations/presentations.factor
+++ b/basis/ui/gadgets/presentations/presentations.factor
@@ -1,43 +1,43 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions ui.gadgets ui.gadgets.borders
-ui.gadgets.buttons ui.gadgets.labels ui.gadgets.menus
-ui.gadgets.worlds hashtables io kernel prettyprint sequences
-strings io.styles words help math models namespaces quotations
-ui.commands ui.operations ui.gestures ;
+USING: arrays accessors definitions hashtables io kernel
+prettyprint sequences strings io.styles words help math models
+namespaces quotations
+ui.gadgets ui.gadgets.borders ui.gadgets.buttons
+ui.gadgets.labels ui.gadgets.menus ui.gadgets.worlds
+ui.gadgets.status-bar ui.commands ui.operations ui.gestures ;
 IN: ui.gadgets.presentations
 
-TUPLE: presentation object hook ;
+TUPLE: presentation < button object hook ;
 
 : invoke-presentation ( presentation command -- )
-    over dup presentation-hook call
-    >r presentation-object r> invoke-command ;
+    over dup hook>> call
+    >r object>> r> invoke-command ;
 
 : invoke-primary ( presentation -- )
-    dup presentation-object primary-operation
+    dup object>> primary-operation
     invoke-presentation ;
 
 : invoke-secondary ( presentation -- )
-    dup presentation-object secondary-operation
+    dup object>> secondary-operation
     invoke-presentation ;
 
 : show-mouse-help ( presentation -- )
-    dup presentation-object over show-summary button-update ;
+    dup object>> over show-summary button-update ;
 
 : <presentation> ( label object -- button )
-    presentation new
-    [ drop ] over set-presentation-hook
-    [ set-presentation-object ] keep
-    swap [ invoke-primary ] <roll-button>
-    over set-gadget-delegate ;
+    swap [ invoke-primary ] presentation new-button
+        swap >>object
+        [ drop ] >>hook
+        roll-button-theme ;
 
 M: presentation ungraft*
     dup hand-gadget get-global child? [ dup hide-status ] when
-    delegate ungraft* ;
+    call-next-method ;
 
 : <operations-menu> ( presentation -- menu )
-    dup dup presentation-hook curry
-    swap presentation-object
+    dup dup hook>> curry
+    swap object>>
     dup object-operations <commands-menu> ;
 
 : operations-menu ( presentation -- )
diff --git a/extra/ui/gadgets/presentations/summary.txt b/basis/ui/gadgets/presentations/summary.txt
similarity index 100%
rename from extra/ui/gadgets/presentations/summary.txt
rename to basis/ui/gadgets/presentations/summary.txt
diff --git a/extra/ui/gadgets/panes/authors.txt b/basis/ui/gadgets/scrollers/authors.txt
similarity index 100%
rename from extra/ui/gadgets/panes/authors.txt
rename to basis/ui/gadgets/scrollers/authors.txt
diff --git a/extra/ui/gadgets/scrollers/scrollers-docs.factor b/basis/ui/gadgets/scrollers/scrollers-docs.factor
similarity index 98%
rename from extra/ui/gadgets/scrollers/scrollers-docs.factor
rename to basis/ui/gadgets/scrollers/scrollers-docs.factor
index ee82339f33..3554c735a7 100755
--- a/extra/ui/gadgets/scrollers/scrollers-docs.factor
+++ b/basis/ui/gadgets/scrollers/scrollers-docs.factor
@@ -1,5 +1,5 @@
 USING: ui.gadgets help.markup help.syntax ui.gadgets.viewports
-ui.gadgets.sliders ;
+ui.gadgets.sliders math.geometry.rect ;
 IN: ui.gadgets.scrollers
 
 HELP: scroller
diff --git a/extra/ui/gadgets/scrollers/scrollers-tests.factor b/basis/ui/gadgets/scrollers/scrollers-tests.factor
similarity index 55%
rename from extra/ui/gadgets/scrollers/scrollers-tests.factor
rename to basis/ui/gadgets/scrollers/scrollers-tests.factor
index 5ccd6c7cd8..48251c4927 100755
--- a/extra/ui/gadgets/scrollers/scrollers-tests.factor
+++ b/basis/ui/gadgets/scrollers/scrollers-tests.factor
@@ -1,9 +1,9 @@
-IN: ui.gadgets.scrollers.tests
-USING: ui.gadgets ui.gadgets.scrollers
-namespaces tools.test kernel models ui.gadgets.viewports
+USING: ui.gadgets ui.gadgets.scrollers namespaces tools.test
+kernel models models.compose models.range ui.gadgets.viewports
 ui.gadgets.labels ui.gadgets.grids ui.gadgets.frames
 ui.gadgets.sliders math math.vectors arrays sequences
-tools.test.ui ;
+tools.test.ui math.geometry.rect accessors ;
+IN: ui.gadgets.scrollers.tests
 
 [ ] [
     <gadget> "g" set
@@ -12,11 +12,11 @@ tools.test.ui ;
 
 [ { 100 200 } ] [
     { 100 200 } "g" get scroll>rect
-    "s" get scroller-follows rect-loc
+    "s" get follows>> rect-loc
 ] unit-test
 
 [ ] [ "s" get scroll>bottom ] unit-test
-[ t ] [ "s" get scroller-follows ] unit-test
+[ t ] [ "s" get follows>> ] unit-test
 
 [ ] [
     <gadget> dup "g" set
@@ -25,46 +25,46 @@ tools.test.ui ;
 ] unit-test
 
 "v" get [
-    [ { 10 20 } ] [ "v" get gadget-model range-value ] unit-test
+    [ { 10 20 } ] [ "v" get model>> range-value ] unit-test
 
     [ { 10 20 } ] [ "g" get rect-loc vneg { 3 3 } v+ ] unit-test
 ] with-grafted-gadget
 
 [ ] [
-    <gadget> { 100 100 } over set-rect-dim
+    <gadget> { 100 100 } >>dim
     dup "g" set <scroller> "s" set
 ] unit-test
 
-[ ] [ { 50 50 } "s" get set-rect-dim ] unit-test
+[ ] [ "s" get { 50 50 } >>dim drop ] unit-test
 
 [ ] [ "s" get layout ] unit-test
 
 "s" get [
-    [ { 34 34 } ] [ "s" get scroller-viewport rect-dim ] unit-test
+    [ { 34 34 } ] [ "s" get viewport>> rect-dim ] unit-test
 
-    [ { 106 106 } ] [ "s" get scroller-viewport viewport-dim ] unit-test
+    [ { 106 106 } ] [ "s" get viewport>> viewport-dim ] unit-test
 
     [ ] [ { 0 0 } "s" get scroll ] unit-test
 
-    [ { 0 0 } ] [ "s" get gadget-model range-min-value ] unit-test
+    [ { 0 0 } ] [ "s" get model>> range-min-value ] unit-test
 
-    [ { 106 106 } ] [ "s" get gadget-model range-max-value ] unit-test
+    [ { 106 106 } ] [ "s" get model>> range-max-value ] unit-test
 
     [ ] [ { 10 20 } "s" get scroll ] unit-test
 
-    [ { 10 20 } ] [ "s" get gadget-model range-value ] unit-test
+    [ { 10 20 } ] [ "s" get model>> range-value ] unit-test
 
-    [ { 10 20 } ] [ "s" get scroller-viewport gadget-model range-value ] unit-test
+    [ { 10 20 } ] [ "s" get viewport>> model>> range-value ] unit-test
 
     [ { 10 20 } ] [ "g" get rect-loc vneg { 3 3 } v+ ] unit-test
 ] with-grafted-gadget
 
-<gadget> { 600 400 } over set-rect-dim "g1" set
-<gadget> { 600 10 } over set-rect-dim "g2" set
-"g2" get "g1" get add-gadget
+<gadget> { 600 400 } >>dim "g1" set
+<gadget> { 600 10 } >>dim "g2" set
+"g2" get "g1" get swap add-gadget drop
 
 "g1" get <scroller>
-{ 300 300 } over set-rect-dim
+{ 300 300 } >>dim
 dup layout
 "s" set
 
@@ -80,9 +80,9 @@ dup layout
 [ ] [ "Hi" <label> dup "l" set <scroller> "s" set ] unit-test
 
 [ t ] [ "l" get find-scroller "s" get eq? ] unit-test
-[ t ] [ "l" get dup find-scroller scroller-viewport swap child? ] unit-test
+[ t ] [ "l" get dup find-scroller viewport>> swap child? ] unit-test
 [ t ] [ "l" get find-scroller* "s" get eq? ] unit-test
-[ f ] [ "s" get scroller-viewport find-scroller* ] unit-test
+[ f ] [ "s" get viewport>> find-scroller* ] unit-test
 [ t ] [ "s" get @right grid-child slider? ] unit-test
 [ f ] [ "s" get @right grid-child find-scroller* ] unit-test
 
diff --git a/basis/ui/gadgets/scrollers/scrollers.factor b/basis/ui/gadgets/scrollers/scrollers.factor
new file mode 100755
index 0000000000..70e56fc31c
--- /dev/null
+++ b/basis/ui/gadgets/scrollers/scrollers.factor
@@ -0,0 +1,142 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays ui.gadgets ui.gadgets.viewports
+ui.gadgets.frames ui.gadgets.grids ui.gadgets.theme
+ui.gadgets.sliders ui.gestures kernel math namespaces sequences
+models models.range models.compose
+combinators math.vectors classes.tuple math.geometry.rect ;
+IN: ui.gadgets.scrollers
+
+TUPLE: scroller < frame viewport x y follows ;
+
+: find-scroller ( gadget -- scroller/f )
+    [ scroller? ] find-parent ;
+
+: scroll-up-page ( scroller -- ) y>> -1 swap slide-by-page ;
+
+: scroll-down-page ( scroller -- ) y>> 1 swap slide-by-page ;
+
+: scroll-up-line ( scroller -- ) y>> -1 swap slide-by-line ;
+
+: scroll-down-line ( scroller -- ) y>> 1 swap slide-by-line ;
+
+: do-mouse-scroll ( scroller -- )
+    scroll-direction get-global first2
+    pick y>> slide-by-line
+    swap x>> slide-by-line ;
+
+scroller H{
+    { T{ mouse-scroll } [ do-mouse-scroll ] }
+} set-gestures
+
+: <scroller-model> ( -- model )
+    0 0 0 0 <range> 0 0 0 0 <range> 2array <compose> ;
+
+: new-scroller ( gadget class -- scroller )
+  new-frame
+    t >>root?
+    <scroller-model> >>model
+    faint-boundary
+
+    dup model>> dependencies>> first  <x-slider> >>x dup x>> @bottom grid-add
+    dup model>> dependencies>> second <y-slider> >>y dup y>> @right  grid-add
+
+    swap over model>> <viewport> >>viewport
+    dup viewport>> @center grid-add ;
+    
+: <scroller> ( gadget -- scroller ) scroller new-scroller ;
+
+: scroll ( value scroller -- )
+    [
+        dup viewport>> rect-dim { 0 0 }
+        rot viewport>> viewport-dim 4array flip
+    ] keep
+    2dup control-value = [ 2drop ] [ set-control-value ] if ;
+
+: rect-min ( rect1 rect2 -- rect )
+    >r [ rect-loc ] keep r> [ rect-dim ] bi@ vmin <rect> ;
+
+: (scroll>rect) ( rect scroller -- )
+    [
+        scroller-value vneg offset-rect
+        viewport-gap offset-rect
+    ] keep
+    [ viewport>> rect-min ] keep
+    [
+        viewport>> 2rect-extent
+        >r >r v- { 0 0 } vmin r> r> v- { 0 0 } vmax v+
+    ] keep dup scroller-value rot v+ swap scroll ;
+
+: relative-scroll-rect ( rect gadget scroller -- newrect )
+    viewport>> gadget-child relative-loc offset-rect ;
+
+: find-scroller* ( gadget -- scroller )
+    dup find-scroller dup [
+        2dup viewport>> gadget-child
+        swap child? [ nip ] [ 2drop f ] if
+    ] [
+        2drop f
+    ] if ;
+
+: scroll>rect ( rect gadget -- )
+    dup find-scroller* dup [
+        [ relative-scroll-rect ] keep
+        [ (>>follows) ] keep
+        relayout
+    ] [
+        3drop
+    ] if ;
+
+: (scroll>gadget) ( gadget scroller -- )
+    >r { 0 0 } over pref-dim <rect> swap r>
+    [ relative-scroll-rect ] keep
+    (scroll>rect) ;
+
+: scroll>gadget ( gadget -- )
+    dup find-scroller* dup [
+        [ (>>follows) ] keep
+        relayout
+    ] [
+        2drop
+    ] if ;
+
+: (scroll>bottom) ( scroller -- )
+    dup viewport>> viewport-dim { 0 1 } v* swap scroll ;
+
+: scroll>bottom ( gadget -- )
+    find-scroller [
+        t over (>>follows) relayout-1
+    ] when* ;
+
+: scroll>top ( gadget -- )
+    <zero-rect> swap scroll>rect ;
+
+GENERIC: update-scroller ( scroller follows -- )
+
+M: t update-scroller drop (scroll>bottom) ;
+
+M: gadget update-scroller swap (scroll>gadget) ;
+
+M: rect update-scroller swap (scroll>rect) ;
+
+M: f update-scroller drop dup scroller-value swap scroll ;
+
+M: scroller layout*
+    dup call-next-method
+    dup follows>>
+    [ update-scroller ] 2keep
+    swap (>>follows) ;
+
+M: scroller focusable-child*
+    viewport>> ;
+
+M: scroller model-changed
+    nip f swap (>>follows) ;
+
+TUPLE: limited-scroller < scroller fixed-dim ;
+
+: <limited-scroller> ( gadget dim -- scroller )
+    >r limited-scroller new-scroller r> >>fixed-dim ;
+
+M: limited-scroller pref-dim*
+    fixed-dim>> ;
diff --git a/extra/ui/gadgets/scrollers/summary.txt b/basis/ui/gadgets/scrollers/summary.txt
similarity index 100%
rename from extra/ui/gadgets/scrollers/summary.txt
rename to basis/ui/gadgets/scrollers/summary.txt
diff --git a/extra/ui/gadgets/paragraphs/authors.txt b/basis/ui/gadgets/sliders/authors.txt
similarity index 100%
rename from extra/ui/gadgets/paragraphs/authors.txt
rename to basis/ui/gadgets/sliders/authors.txt
diff --git a/extra/ui/gadgets/sliders/sliders-docs.factor b/basis/ui/gadgets/sliders/sliders-docs.factor
similarity index 90%
rename from extra/ui/gadgets/sliders/sliders-docs.factor
rename to basis/ui/gadgets/sliders/sliders-docs.factor
index e5de7c2208..63284f135d 100755
--- a/extra/ui/gadgets/sliders/sliders-docs.factor
+++ b/basis/ui/gadgets/sliders/sliders-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax ui.gadgets models ;
+USING: help.markup help.syntax ui.gadgets models models.range ;
 IN: ui.gadgets.sliders
 
 HELP: elevator
@@ -30,7 +30,7 @@ HELP: slide-by-page
 
 HELP: slide-by-line
 { $values { "amount" "an integer" } { "slider" slider } }
-{ $description "Adds the amount multiplied by " { $link slider-line } " to the slider's current position." } ;
+{ $description "Adds the amount multiplied by the " { $snippet "line" } " slot to the slider's current position." } ;
 
 HELP: <slider>
 { $values { "range" range } { "orientation" "an orientation specifier" } { "slider" "a new " { $link slider } } }
@@ -56,6 +56,6 @@ ARTICLE: "ui.gadgets.sliders" "Slider gadgets"
 { $subsection slide-by }
 { $subsection slide-by-line }
 { $subsection slide-by-page }
-"Since sliders are controls the value can be get and set by calling " { $link gadget-model } "." ;
+"Since sliders are controls the value can be get and set by via the " { $snippet "model" } " slot. " ;
 
 ABOUT: "ui.gadgets.sliders"
diff --git a/basis/ui/gadgets/sliders/sliders.factor b/basis/ui/gadgets/sliders/sliders.factor
new file mode 100755
index 0000000000..8d673e66ad
--- /dev/null
+++ b/basis/ui/gadgets/sliders/sliders.factor
@@ -0,0 +1,160 @@
+! Copyright (C) 2005, 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays ui.gestures ui.gadgets ui.gadgets.buttons
+ui.gadgets.frames ui.gadgets.grids math.order
+ui.gadgets.theme ui.render kernel math namespaces sequences
+vectors models models.range math.vectors math.functions
+quotations colors math.geometry.rect ;
+IN: ui.gadgets.sliders
+
+TUPLE: elevator < gadget direction ;
+
+: find-elevator ( gadget -- elevator/f ) [ elevator? ] find-parent ;
+
+TUPLE: slider < frame elevator thumb saved line ;
+
+: find-slider ( gadget -- slider/f ) [ slider? ] find-parent ;
+
+: elevator-length ( slider -- n )
+  [ elevator>> dim>> ] [ orientation>> ] bi v. ;
+
+: min-thumb-dim 15 ;
+
+: slider-value ( gadget -- n ) model>> range-value >fixnum ;
+: slider-page  ( gadget -- n ) model>> range-page-value    ;
+: slider-max   ( gadget -- n ) model>> range-max-value     ;
+: slider-max*  ( gadget -- n ) model>> range-max-value*    ;
+
+: thumb-dim ( slider -- h )
+    dup slider-page over slider-max 1 max / 1 min
+    over elevator-length * min-thumb-dim max
+    over elevator>> rect-dim
+    rot orientation>> v. min ;
+
+: slider-scale ( slider -- n )
+    #! A scaling factor such that if x is a slider co-ordinate,
+    #! x*n is the screen position of the thumb, and conversely
+    #! for x/n. The '1 max' calls avoid division by zero.
+    dup elevator-length over thumb-dim - 1 max
+    swap slider-max* 1 max / ;
+
+: slider>screen ( m scale -- n ) slider-scale * ;
+: screen>slider ( m scale -- n ) slider-scale / ;
+
+M: slider model-changed nip elevator>> relayout-1 ;
+
+TUPLE: thumb < gadget ;
+
+: begin-drag ( thumb -- )
+    find-slider dup slider-value swap (>>saved) ;
+
+: do-drag ( thumb -- )
+    find-slider drag-loc over orientation>> v.
+    over screen>slider swap [ saved>> + ] keep
+    model>> set-range-value ;
+
+thumb H{
+    { T{ button-down } [ begin-drag ] }
+    { T{ button-up } [ drop ] }
+    { T{ drag } [ do-drag ] }
+} set-gestures
+
+: thumb-theme ( thumb -- thumb )
+    plain-gradient >>interior
+    faint-boundary ; inline
+
+: <thumb> ( vector -- thumb )
+    thumb new-gadget
+        swap >>orientation
+        t >>root?
+    thumb-theme ;
+
+: slide-by ( amount slider -- ) model>> move-by ;
+
+: slide-by-page ( amount slider -- ) model>> move-by-page ;
+
+: compute-direction ( elevator -- -1/1 )
+    dup find-slider swap hand-click-rel
+    over orientation>> v.
+    over screen>slider
+    swap slider-value - sgn ;
+
+: elevator-hold ( elevator -- )
+    dup direction>> swap find-slider slide-by-page ;
+
+: elevator-click ( elevator -- )
+    dup compute-direction over (>>direction)
+    elevator-hold ;
+
+elevator H{
+    { T{ drag } [ elevator-hold ] }
+    { T{ button-down } [ elevator-click ] }
+} set-gestures
+
+: <elevator> ( vector -- elevator )
+  elevator new-gadget
+    swap             >>orientation
+    lowered-gradient >>interior ;
+
+: (layout-thumb) ( slider n -- n thumb )
+    over orientation>> n*v swap thumb>> ;
+
+: thumb-loc ( slider -- loc )
+    dup slider-value swap slider>screen ;
+
+: layout-thumb-loc ( slider -- )
+    dup thumb-loc (layout-thumb)
+    >r [ floor ] map r> (>>loc) ;
+
+: layout-thumb-dim ( slider -- )
+    dup dup thumb-dim (layout-thumb) >r
+    >r dup rect-dim r>
+    rot orientation>> set-axis [ ceiling ] map
+    r> (>>dim) ;
+
+: layout-thumb ( slider -- )
+    dup layout-thumb-loc layout-thumb-dim ;
+
+M: elevator layout*
+    find-slider layout-thumb ;
+
+: slide-by-line ( amount slider -- ) [ line>> * ] keep slide-by ;
+
+: <slide-button> ( vector polygon amount -- button )
+    >r gray swap <polygon-gadget> r>
+    [ swap find-slider slide-by-line ] curry <repeat-button>
+    [ (>>orientation) ] keep ;
+
+: elevator, ( gadget orientation -- gadget )
+  tuck <elevator> >>elevator
+  swap <thumb>    >>thumb
+  dup elevator>> over thumb>> add-gadget
+  @center grid-add ;
+
+: <left-button>  ( -- button ) { 0 1 } arrow-left -1 <slide-button> ;
+: <right-button> ( -- button ) { 0 1 } arrow-right 1 <slide-button> ;
+: <up-button>    ( -- button ) { 1 0 } arrow-up   -1 <slide-button> ;
+: <down-button>  ( -- button ) { 1 0 } arrow-down  1 <slide-button> ;
+
+: <slider> ( range orientation -- slider )
+    slider new-frame
+        swap >>orientation
+        swap >>model
+        32 >>line ;
+
+: <x-slider> ( range -- slider )
+  { 1 0 } <slider>
+    <left-button> @left grid-add
+    { 0 1 } elevator,
+    <right-button> @right grid-add ;
+
+: <y-slider> ( range -- slider )
+  { 0 1 } <slider>
+    <up-button> @top grid-add
+    { 1 0 } elevator,
+    <down-button> @bottom grid-add ;
+
+M: slider pref-dim*
+    dup call-next-method
+    swap orientation>> [ 40 v*n ] keep
+    set-axis ;
diff --git a/extra/ui/gadgets/sliders/summary.txt b/basis/ui/gadgets/sliders/summary.txt
similarity index 100%
rename from extra/ui/gadgets/sliders/summary.txt
rename to basis/ui/gadgets/sliders/summary.txt
diff --git a/extra/ui/gadgets/presentations/authors.txt b/basis/ui/gadgets/slots/authors.txt
similarity index 100%
rename from extra/ui/gadgets/presentations/authors.txt
rename to basis/ui/gadgets/slots/authors.txt
diff --git a/extra/ui/gadgets/slots/slots-tests.factor b/basis/ui/gadgets/slots/slots-tests.factor
similarity index 83%
rename from extra/ui/gadgets/slots/slots-tests.factor
rename to basis/ui/gadgets/slots/slots-tests.factor
index b955a2604d..d6adbdbff5 100644
--- a/extra/ui/gadgets/slots/slots-tests.factor
+++ b/basis/ui/gadgets/slots/slots-tests.factor
@@ -1,4 +1,6 @@
 IN: ui.gadgets.slots.tests
 USING: assocs ui.gadgets.slots tools.test refs ;
 
+\ <editable-slot> must-infer
+
 [ t ] [ { 1 2 3 } 2 <value-ref> <slot-editor> slot-editor? ] unit-test
diff --git a/extra/ui/gadgets/slots/slots.factor b/basis/ui/gadgets/slots/slots.factor
similarity index 55%
rename from extra/ui/gadgets/slots/slots.factor
rename to basis/ui/gadgets/slots/slots.factor
index d9afce15a7..b111caa179 100755
--- a/extra/ui/gadgets/slots/slots.factor
+++ b/basis/ui/gadgets/slots/slots.factor
@@ -1,10 +1,10 @@
-! Copyright (C) 2007 Slava Pestov.
+! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces ui.gadgets ui.gestures ui.commands kernel
-ui.gadgets.scrollers parser prettyprint ui.gadgets.buttons
-sequences arrays ui.gadgets.borders ui.gadgets.tracks
-ui.gadgets.editors io math
-definitions math.vectors assocs refs ;
+USING: accessors namespaces kernel parser prettyprint
+sequences arrays io math definitions math.vectors assocs refs
+ui.gadgets ui.gestures ui.commands ui.gadgets.scrollers
+ui.gadgets.buttons ui.gadgets.borders ui.gadgets.tracks
+ui.gadgets.editors eval ;
 IN: ui.gadgets.slots
 
 TUPLE: update-object ;
@@ -13,11 +13,11 @@ TUPLE: update-slot ;
 
 TUPLE: edit-slot ;
 
-TUPLE: slot-editor ref text ;
+TUPLE: slot-editor < track ref text ;
 
 : revert ( slot-editor -- )
-    dup slot-editor-ref get-ref unparse-use
-    swap slot-editor-text set-editor-string ;
+    dup ref>> get-ref unparse-use
+    swap text>> set-editor-string ;
 
 \ revert H{
     { +description+ "Revert any uncomitted changes." }
@@ -32,21 +32,21 @@ M: value-ref finish-editing
     drop T{ update-slot } swap send-gesture drop ;
 
 : slot-editor-value ( slot-editor -- object )
-    slot-editor-text control-value parse-fresh ;
+    text>> control-value parse-fresh ;
 
 : commit ( slot-editor -- )
-    dup slot-editor-text control-value parse-fresh first
-    over slot-editor-ref set-ref
-    dup slot-editor-ref finish-editing ;
+    dup text>> control-value parse-fresh first
+    over ref>> set-ref
+    dup ref>> finish-editing ;
 
 \ commit H{
     { +description+ "Parse the object being edited, and store the result back into the edited slot." }
 } define-command
 
 : com-eval ( slot-editor -- )
-    [ slot-editor-text editor-string eval ] keep
-    [ slot-editor-ref set-ref ] keep
-    dup slot-editor-ref finish-editing ;
+    [ text>> editor-string eval ] keep
+    [ ref>> set-ref ] keep
+    dup ref>> finish-editing ;
 
 \ com-eval H{
     { +listener+ t }
@@ -54,7 +54,7 @@ M: value-ref finish-editing
 } define-command
 
 : delete ( slot-editor -- )
-    dup slot-editor-ref delete-ref
+    dup ref>> delete-ref
     T{ update-object } swap send-gesture drop ;
 
 \ delete H{
@@ -69,16 +69,16 @@ M: value-ref finish-editing
 } define-command
 
 : <slot-editor> ( ref -- gadget )
-    slot-editor new
-    [ set-slot-editor-ref ] keep
-    [
-        toolbar,
-        <source-editor> g-> set-slot-editor-text
-        <scroller> 1 track,
-    ] { 0 1 } build-track
+  { 0 1 } slot-editor new-track
+    swap >>ref
+    dup <toolbar> f track-add
+    <source-editor> >>text
+    dup text>> <scroller> 1 track-add
     dup revert ;
+    
+M: slot-editor pref-dim* call-next-method { 600 200 } vmin ;
 
-M: slot-editor pref-dim* delegate pref-dim* { 600 200 } vmin ;
+M: slot-editor focusable-child* text>> ;
 
 slot-editor "toolbar" f {
     { T{ key-down f { C+ } "RET" } commit }
@@ -88,7 +88,7 @@ slot-editor "toolbar" f {
     { T{ key-down f f "ESC" } close }
 } define-command-map
 
-TUPLE: editable-slot printer ref ;
+TUPLE: editable-slot < track printer ref ;
 
 : <edit-button> ( -- gadget )
     "..."
@@ -96,21 +96,22 @@ TUPLE: editable-slot printer ref ;
     <roll-button> ;
 
 : display-slot ( gadget editable-slot -- )
-    dup clear-track
-    [ 1 track, <edit-button> f track, ] with-gadget ;
+  dup clear-track
+    swap          1 track-add
+    <edit-button> f track-add
+  drop ;
 
 : update-slot ( editable-slot -- )
-    [
-        dup editable-slot-ref get-ref
-        swap editable-slot-printer call
-    ] keep
-    [ display-slot ] keep
-    scroll>gadget ;
+    [ [ ref>> get-ref ] [ printer>> ] bi call ] keep
+    display-slot ;
 
 : edit-slot ( editable-slot -- )
-    dup clear-track dup [
-        dup editable-slot-ref <slot-editor> 1 track,
-    ] with-gadget scroll>gadget ;
+    [ clear-track ]
+    [
+        dup ref>> <slot-editor>
+        [ 1 track-add drop ]
+        [ [ scroll>gadget ] [ request-focus ] bi* ] 2bi
+    ] bi ;
 
 \ editable-slot H{
     { T{ update-slot } [ update-slot ] }
@@ -118,8 +119,7 @@ TUPLE: editable-slot printer ref ;
 } set-gestures
 
 : <editable-slot> ( gadget ref -- editable-slot )
-    editable-slot new
-    { 1 0 } <track> over set-gadget-delegate
-    [ drop <gadget> ] over set-editable-slot-printer
-    [ set-editable-slot-ref ] keep
-    [ display-slot ] keep ;
+    { 1 0 } editable-slot new-track
+        swap >>ref
+        [ drop <gadget> ] >>printer
+        [ display-slot ] keep ;
diff --git a/extra/ui/gadgets/slots/summary.txt b/basis/ui/gadgets/slots/summary.txt
similarity index 100%
rename from extra/ui/gadgets/slots/summary.txt
rename to basis/ui/gadgets/slots/summary.txt
diff --git a/extra/ui/gadgets/scrollers/authors.txt b/basis/ui/gadgets/status-bar/authors.txt
similarity index 100%
rename from extra/ui/gadgets/scrollers/authors.txt
rename to basis/ui/gadgets/status-bar/authors.txt
diff --git a/basis/ui/gadgets/status-bar/status-bar-docs.factor b/basis/ui/gadgets/status-bar/status-bar-docs.factor
new file mode 100755
index 0000000000..6203cd474e
--- /dev/null
+++ b/basis/ui/gadgets/status-bar/status-bar-docs.factor
@@ -0,0 +1,8 @@
+USING: help.markup help.syntax models
+ui.gadgets ui.gadgets.worlds ;
+IN: ui.gadgets.status-bar
+
+HELP: <status-bar>
+{ $values { "model" model } { "gadget" "a new " { $link gadget } } }
+{ $description "Creates a new " { $link gadget } " displaying the model value, which must be a string or " { $link f } "." }
+{ $notes "If the " { $snippet "model" } " is " { $snippet "status" } ", this gadget will display mouse over help for " { $link "ui.gadgets.presentations" } "." } ;
diff --git a/basis/ui/gadgets/status-bar/status-bar.factor b/basis/ui/gadgets/status-bar/status-bar.factor
new file mode 100755
index 0000000000..431804f4ca
--- /dev/null
+++ b/basis/ui/gadgets/status-bar/status-bar.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors models models.delay models.filter
+sequences ui.gadgets.labels ui.gadgets.theme ui.gadgets.tracks
+ui.gadgets.worlds ui.gadgets ui kernel calendar summary ;
+IN: ui.gadgets.status-bar
+
+: <status-bar> ( model -- gadget )
+    1/10 seconds <delay> [ "" like ] <filter> <label-control>
+    reverse-video-theme
+    t >>root? ;
+
+: open-status-window ( gadget title -- )
+    f <model> [ <world> ] keep
+    <status-bar> f track-add
+    open-world-window ;
+
+: show-summary ( object gadget -- )
+    >r [ summary ] [ "" ] if* r> show-status ;
diff --git a/extra/ui/gadgets/status-bar/summary.txt b/basis/ui/gadgets/status-bar/summary.txt
similarity index 100%
rename from extra/ui/gadgets/status-bar/summary.txt
rename to basis/ui/gadgets/status-bar/summary.txt
diff --git a/extra/ui/gadgets/summary.txt b/basis/ui/gadgets/summary.txt
similarity index 100%
rename from extra/ui/gadgets/summary.txt
rename to basis/ui/gadgets/summary.txt
diff --git a/extra/ui/gadgets/sliders/authors.txt b/basis/ui/gadgets/theme/authors.txt
similarity index 100%
rename from extra/ui/gadgets/sliders/authors.txt
rename to basis/ui/gadgets/theme/authors.txt
diff --git a/extra/ui/gadgets/theme/summary.txt b/basis/ui/gadgets/theme/summary.txt
similarity index 100%
rename from extra/ui/gadgets/theme/summary.txt
rename to basis/ui/gadgets/theme/summary.txt
diff --git a/basis/ui/gadgets/theme/theme.factor b/basis/ui/gadgets/theme/theme.factor
new file mode 100644
index 0000000000..46fa0105a3
--- /dev/null
+++ b/basis/ui/gadgets/theme/theme.factor
@@ -0,0 +1,60 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! Copyright (C) 2006, 2007 Alex Chapman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays kernel sequences io.styles ui.gadgets ui.render
+colors accessors ;
+IN: ui.gadgets.theme
+
+: solid-interior ( gadget color -- gadget )
+    <solid> >>interior ; inline
+
+: solid-boundary ( gadget color -- gadget )
+    <solid> >>boundary ; inline
+
+: faint-boundary ( gadget -- gadget )
+    gray solid-boundary ; inline
+
+: selection-color ( -- color ) light-purple ;
+
+: plain-gradient
+    T{ gradient f {
+        T{ gray f 0.94 1.0 }
+        T{ gray f 0.83 1.0 }
+        T{ gray f 0.83 1.0 }
+        T{ gray f 0.62 1.0 }
+    } } ;
+
+: rollover-gradient
+    T{ gradient f {
+        T{ gray f 1.0  1.0 }
+        T{ gray f 0.9  1.0 }
+        T{ gray f 0.9  1.0 }
+        T{ gray f 0.75 1.0 }
+    } } ;
+
+: pressed-gradient
+    T{ gradient f {
+        T{ gray f 0.75 1.0 }
+        T{ gray f 0.9  1.0 }
+        T{ gray f 0.9  1.0 }
+        T{ gray f 1.0  1.0 }
+    } } ;
+
+: selected-gradient
+    T{ gradient f {
+        T{ gray f 0.65 1.0 }
+        T{ gray f 0.8  1.0 }
+        T{ gray f 0.8  1.0 }
+        T{ gray f 1.0  1.0 }
+    } } ;
+
+: lowered-gradient
+    T{ gradient f {
+        T{ gray f 0.37 1.0 }
+        T{ gray f 0.43 1.0 }
+        T{ gray f 0.5  1.0 }
+    } } ;
+
+: sans-serif-font { "sans-serif" plain 12 } ;
+
+: monospace-font { "monospace" plain 12 } ;
diff --git a/extra/ui/gadgets/slots/authors.txt b/basis/ui/gadgets/tracks/authors.txt
similarity index 100%
rename from extra/ui/gadgets/slots/authors.txt
rename to basis/ui/gadgets/tracks/authors.txt
diff --git a/extra/ui/gadgets/tracks/summary.txt b/basis/ui/gadgets/tracks/summary.txt
similarity index 100%
rename from extra/ui/gadgets/tracks/summary.txt
rename to basis/ui/gadgets/tracks/summary.txt
diff --git a/basis/ui/gadgets/tracks/tracks-docs.factor b/basis/ui/gadgets/tracks/tracks-docs.factor
new file mode 100755
index 0000000000..9ed5bf4223
--- /dev/null
+++ b/basis/ui/gadgets/tracks/tracks-docs.factor
@@ -0,0 +1,24 @@
+USING: ui.gadgets.packs help.markup help.syntax ui.gadgets
+arrays kernel quotations classes.tuple ;
+IN: ui.gadgets.tracks
+
+ARTICLE: "ui-track-layout" "Track layouts"
+"Track gadgets are like " { $link "ui-pack-layout" } " except each child is resized to a fixed multiple of the track's dimension."
+{ $subsection track }
+"Creating empty tracks:"
+{ $subsection <track> }
+"Adding children:"
+{ $subsection track-add } ;
+
+HELP: track
+{ $class-description "A track is like a " { $link pack } " except each child is resized to a fixed multiple of the track's dimension in the direction of " { $snippet "orientation" } ". Tracks are created by calling " { $link <track> } "." } ;
+
+HELP: <track>
+{ $values { "orientation" "an orientation specifier" } { "track" "a new " { $link track } } }
+{ $description "Creates a new track which lays out children along the given axis. Children are laid out vertically if the orientation is " { $snippet "{ 0 1 }" } " and horizontally if the orientation is " { $snippet "{ 1 0 }" } "." } ; 
+
+HELP: track-add
+{ $values { "gadget" gadget } { "track" track } { "constraint" "a number between 0 and 1, or " { $link f } } }
+{ $description "Adds a new child to a track. If the constraint is " { $link f } ", the child always occupies its preferred size. Otherwise, the constrant is a fraction of the total size which is allocated for the child." } ;
+
+ABOUT: "ui-track-layout"
diff --git a/basis/ui/gadgets/tracks/tracks-tests.factor b/basis/ui/gadgets/tracks/tracks-tests.factor
new file mode 100644
index 0000000000..6feaf52b47
--- /dev/null
+++ b/basis/ui/gadgets/tracks/tracks-tests.factor
@@ -0,0 +1,16 @@
+USING: kernel ui.gadgets ui.gadgets.tracks tools.test
+       math.geometry.rect accessors ;
+IN: ui.gadgets.tracks.tests
+
+[ { 100 100 } ] [
+  { 0 1 } <track>
+    <gadget> { 100 100 } >>dim 1 track-add
+  pref-dim
+] unit-test
+
+[ { 100 110 } ] [
+  { 0 1 } <track>
+    <gadget> { 10 10 }   >>dim f track-add
+    <gadget> { 100 100 } >>dim 1 track-add
+  pref-dim
+] unit-test
diff --git a/basis/ui/gadgets/tracks/tracks.factor b/basis/ui/gadgets/tracks/tracks.factor
new file mode 100644
index 0000000000..cf679424e0
--- /dev/null
+++ b/basis/ui/gadgets/tracks/tracks.factor
@@ -0,0 +1,66 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors io kernel math namespaces
+       sequences words math.vectors ui.gadgets ui.gadgets.packs
+       math.geometry.rect fry ;
+
+IN: ui.gadgets.tracks
+
+TUPLE: track < pack sizes ;
+
+: normalized-sizes ( track -- seq )
+  sizes>> dup sift sum '[ dup [ , / ] when ] map ;
+
+: init-track ( track -- track )
+  init-gadget
+  V{ } clone >>sizes
+  1          >>fill ;
+
+: new-track ( orientation class -- track )
+  new
+    init-track
+    swap >>orientation ;
+
+: <track> ( orientation -- track ) track new-track ;
+
+: alloted-dim ( track -- dim )
+  [ children>> ] [ sizes>> ] bi { 0 0 }
+  [ [ drop { 0 0 } ] [ pref-dim ] if v+ ] 2reduce ;
+
+: available-dim ( track -- dim ) [ dim>> ] [ alloted-dim ] bi v- ;
+
+: track-layout ( track -- sizes )
+    [ available-dim ] [ children>> ] [ normalized-sizes ] tri
+    [ [ over n*v ] [ pref-dim ] ?if ] 2map nip ;
+
+M: track layout* ( track -- ) dup track-layout pack-layout ;
+
+: track-pref-dims-1 ( track -- dim ) children>> pref-dims max-dim ;
+
+: track-pref-dims-2 ( track -- dim )
+  [ children>> pref-dims ] [ normalized-sizes ] bi
+  [ [ v/n ] when* ] 2map
+  max-dim
+  [ >fixnum ] map ;
+
+M: track pref-dim* ( gadget -- dim )
+   [ track-pref-dims-1                           ]
+   [ [ alloted-dim ] [ track-pref-dims-2 ] bi v+ ]
+   [ orientation>>                               ]
+   tri
+   set-axis ;
+
+: track-add ( track gadget constraint -- track )
+  pick sizes>> push add-gadget ;
+
+: track-remove ( track gadget -- track )
+  dupd dup
+    [
+      [ swap children>> index ]
+      [ unparent sizes>>      ] 2bi
+      delete-nth 
+    ]
+    [ 2drop ]
+  if ;
+
+: clear-track ( track -- ) V{ } clone >>sizes clear-gadget ;
diff --git a/extra/ui/gadgets/status-bar/authors.txt b/basis/ui/gadgets/viewports/authors.txt
similarity index 100%
rename from extra/ui/gadgets/status-bar/authors.txt
rename to basis/ui/gadgets/viewports/authors.txt
diff --git a/extra/ui/gadgets/viewports/summary.txt b/basis/ui/gadgets/viewports/summary.txt
similarity index 100%
rename from extra/ui/gadgets/viewports/summary.txt
rename to basis/ui/gadgets/viewports/summary.txt
diff --git a/extra/ui/gadgets/viewports/viewports-docs.factor b/basis/ui/gadgets/viewports/viewports-docs.factor
similarity index 100%
rename from extra/ui/gadgets/viewports/viewports-docs.factor
rename to basis/ui/gadgets/viewports/viewports-docs.factor
diff --git a/extra/ui/gadgets/viewports/viewports.factor b/basis/ui/gadgets/viewports/viewports.factor
similarity index 50%
rename from extra/ui/gadgets/viewports/viewports.factor
rename to basis/ui/gadgets/viewports/viewports.factor
index 7dd95d542d..c6e4b044cd 100755
--- a/extra/ui/gadgets/viewports/viewports.factor
+++ b/basis/ui/gadgets/viewports/viewports.factor
@@ -1,27 +1,29 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 IN: ui.gadgets.viewports
-USING: arrays ui.gadgets ui.gadgets.borders
-kernel math namespaces sequences models math.vectors ;
+USING: accessors arrays ui.gadgets ui.gadgets.borders
+kernel math namespaces sequences models math.vectors math.geometry.rect ;
 
 : viewport-gap { 3 3 } ; inline
 
-TUPLE: viewport ;
+TUPLE: viewport < gadget ;
 
-: find-viewport [ viewport? ] find-parent ;
+: find-viewport ( gadget -- viewport )
+    [ viewport? ] find-parent ;
 
 : viewport-dim ( viewport -- dim )
     gadget-child pref-dim viewport-gap 2 v*n v+ ;
 
 : <viewport> ( content model -- viewport )
-    <gadget> viewport construct-control
-    t over set-gadget-clipped?
-    [ add-gadget ] keep ;
+    viewport new-gadget
+        swap >>model
+        t >>clipped?
+        [ swap add-gadget drop ] keep ;
 
 M: viewport layout*
     dup rect-dim viewport-gap 2 v*n v-
     over gadget-child pref-dim vmax
-    swap gadget-child set-layout-dim ;
+    swap gadget-child (>>dim) ;
 
 M: viewport focusable-child*
     gadget-child ;
@@ -29,18 +31,17 @@ M: viewport focusable-child*
 M: viewport pref-dim* viewport-dim ;
 
 : scroller-value ( scroller -- loc )
-    gadget-model range-value [ >fixnum ] map ;
+    model>> range-value [ >fixnum ] map ;
 
 M: viewport model-changed
     nip
     dup relayout-1
     dup scroller-value
     vneg viewport-gap v+
-    swap gadget-child set-rect-loc ;
+    swap gadget-child (>>loc) ;
 
 : visible-dim ( gadget -- dim )
-    dup gadget-parent viewport? [
-        gadget-parent rect-dim viewport-gap 2 v*n v-
-    ] [
-        rect-dim
-    ] if ;
+    dup parent>> viewport?
+      [ parent>> rect-dim viewport-gap 2 v*n v- ]
+      [ rect-dim ]
+    if ;
diff --git a/extra/ui/gadgets/theme/authors.txt b/basis/ui/gadgets/worlds/authors.txt
similarity index 100%
rename from extra/ui/gadgets/theme/authors.txt
rename to basis/ui/gadgets/worlds/authors.txt
diff --git a/extra/ui/gadgets/worlds/summary.txt b/basis/ui/gadgets/worlds/summary.txt
similarity index 100%
rename from extra/ui/gadgets/worlds/summary.txt
rename to basis/ui/gadgets/worlds/summary.txt
diff --git a/extra/ui/gadgets/worlds/worlds-docs.factor b/basis/ui/gadgets/worlds/worlds-docs.factor
similarity index 59%
rename from extra/ui/gadgets/worlds/worlds-docs.factor
rename to basis/ui/gadgets/worlds/worlds-docs.factor
index c5c5c642f7..122d14eed7 100755
--- a/extra/ui/gadgets/worlds/worlds-docs.factor
+++ b/basis/ui/gadgets/worlds/worlds-docs.factor
@@ -11,7 +11,7 @@ HELP: hand-world
 HELP: set-title
 { $values { "string" string } { "world" world } }
 { $description "Sets the title bar of the native window containing the world." }
-{ $notes "This word should not be called directly by user code. Instead, change the " { $link world-title } " model; see " { $link "models" } "." } ;
+{ $notes "This word should not be called directly by user code. Instead, change the " { $snippet "title" } " slot model; see " { $link "models" } "." } ;
 
 HELP: select-gl-context
 { $values { "handle" "a backend-specific handle" } }
@@ -27,17 +27,17 @@ HELP: focus-path
 { $notes "This word is used to avoid sending " { $link gain-focus } " gestures to a gadget which requests focus on an unfocused top-level window, so that, for instance, a text editing caret does not appear in this case." } ;
 
 HELP: world
-{ $class-description "A gadget which appears at the top of the gadget hieararchy, and in turn may be displayed in a native window. Worlds delegate to " { $link gadget } " instances and have the following slots:"
+{ $class-description "A gadget which appears at the top of the gadget hieararchy, and in turn may be displayed in a native window. Worlds have the following slots:"
     { $list
-        { { $link world-active? } " - if set to " { $link f } ", the world will not be drawn. This slot is set to " { $link f } " if an error is thrown while drawing the world; this prevents multiple debugger windows from being shown." }
-        { { $link world-glass } " - a glass pane in front of the primary gadget, used to implement behaviors such as popup menus which are hidden when the mouse is clicked outside the menu." }
-        { { $link world-title } " - a string to be displayed in the title bar of the native window containing the world." }
-        { { $link world-status } " - a " { $link model } " holding a string to be displayed in the world's status bar." }
-        { { $link world-focus } " - the current owner of the keyboard focus in the world." }
-        { { $link world-focused? } " - a boolean indicating if the native window containing the world has keyboard focus." }
-        { { $link world-fonts } " - a hashtable mapping font instances to vectors of " { $link sprite } " instances." }
-        { { $link world-handle } " - a backend-specific native handle representing the native window containing the world, or " { $link f } " if the world is not grafted." }
-        { { $link world-loc } " - the on-screen location of the native window containing the world. The co-ordinate system here is backend-specific." }
+        { { $snippet "active?" } " - if set to " { $link f } ", the world will not be drawn. This slot is set to " { $link f } " if an error is thrown while drawing the world; this prevents multiple debugger windows from being shown." }
+        { { $snippet "glass" } " - a glass pane in front of the primary gadget, used to implement behaviors such as popup menus which are hidden when the mouse is clicked outside the menu." }
+        { { $snippet "title" } " - a string to be displayed in the title bar of the native window containing the world." }
+        { { $snippet "status" } " - a " { $link model } " holding a string to be displayed in the world's status bar." }
+        { { $snippet "focus" } " - the current owner of the keyboard focus in the world." }
+        { { $snippet "focused?" } " - a boolean indicating if the native window containing the world has keyboard focus." }
+        { { $snippet "fonts" } " - a hashtable mapping font instances to vectors of " { $link sprite } " instances." }
+        { { $snippet "handle" } " - a backend-specific native handle representing the native window containing the world, or " { $link f } " if the world is not grafted." }
+        { { $snippet "window-loc" } " - the on-screen location of the native window containing the world. The co-ordinate system here is backend-specific." }
     }
 } ;
 
@@ -46,7 +46,7 @@ HELP: <world>
 { $description "Creates a new " { $link world } " delegating to the given gadget." } ;
 
 HELP: find-world
-{ $values { "gadget" gadget } { "world" "a " { $link world } " or " { $link f } } }
+{ $values { "gadget" gadget } { "world/f" "a " { $link world } " or " { $link f } } }
 { $description "Finds the " { $link world } " containing the gadget, or outputs " { $link f } " if the gadget is not grafted." } ;
 
 HELP: draw-world
diff --git a/extra/ui/gadgets/worlds/worlds-tests.factor b/basis/ui/gadgets/worlds/worlds-tests.factor
similarity index 58%
rename from extra/ui/gadgets/worlds/worlds-tests.factor
rename to basis/ui/gadgets/worlds/worlds-tests.factor
index 2e186d875d..dbaaa33a51 100644
--- a/extra/ui/gadgets/worlds/worlds-tests.factor
+++ b/basis/ui/gadgets/worlds/worlds-tests.factor
@@ -1,12 +1,12 @@
-IN: ui.gadgets.worlds.tests
 USING: ui.gadgets ui.gadgets.packs ui.gadgets.worlds tools.test
-namespaces models kernel ;
+namespaces models kernel accessors ;
+IN: ui.gadgets.worlds.tests
 
 ! Test focus behavior
 <gadget> "g1" set
 
 : <test-world> ( gadget -- world )
-    [ gadget, ] make-pile "Hi" f <world> ;
+    "Hi" f <world> ;
 
 [ ] [
     "g1" get <test-world> "w" set
@@ -14,11 +14,11 @@ namespaces models kernel ;
 
 [ ] [ "g1" get request-focus ] unit-test
 
-[ t ] [ "w" get gadget-focus "g1" get eq? ] unit-test
+[ t ] [ "w" get focus>> "g1" get eq? ] unit-test
 
 <gadget> "g1" set
 <gadget> "g2" set
-"g1" get "g2" get add-gadget
+"g1" get "g2" get swap add-gadget drop
 
 [ ] [
     "g2" get <test-world> "w" set
@@ -26,15 +26,15 @@ namespaces models kernel ;
 
 [ ] [ "g1" get request-focus ] unit-test
 
-[ t ] [ "w" get gadget-focus "g2" get eq? ] unit-test
-[ t ] [ "g2" get gadget-focus "g1" get eq? ] unit-test
-[ f ] [ "g1" get gadget-focus ] unit-test
+[ t ] [ "w" get focus>> "g2" get eq? ] unit-test
+[ t ] [ "g2" get focus>> "g1" get eq? ] unit-test
+[ f ] [ "g1" get focus>> ] unit-test
 
 <gadget> "g1" set
 <gadget> "g2" set
 <gadget> "g3" set
-"g1" get "g3" get add-gadget
-"g2" get "g3" get add-gadget
+"g1" get "g3" get swap add-gadget drop
+"g2" get "g3" get swap add-gadget drop
 
 [ ] [
     "g3" get <test-world> "w" set
@@ -42,20 +42,20 @@ namespaces models kernel ;
 
 [ ] [ "g1" get request-focus ] unit-test
 [ ] [ "g2" get unparent ] unit-test
-[ t ] [ "g3" get gadget-focus "g1" get eq? ] unit-test
+[ t ] [ "g3" get focus>> "g1" get eq? ] unit-test
 
 [ t ] [ <gadget> dup <test-world> focusable-child eq? ] unit-test
 
-TUPLE: focusing ;
+TUPLE: focusing < gadget ;
 
 : <focusing>
-    focusing construct-gadget ;
+    focusing new-gadget ;
 
-TUPLE: focus-test ;
+TUPLE: focus-test < gadget ;
 
 : <focus-test>
-    focus-test construct-gadget
-    <focusing> over add-gadget ;
+    focus-test new-gadget
+    <focusing> over swap add-gadget drop ;
 
 M: focus-test focusable-child* gadget-child ;
 
@@ -63,6 +63,6 @@ M: focus-test focusable-child* gadget-child ;
 
 [ ] [ "f" get <test-world> request-focus ] unit-test
 
-[ t ] [ "f" get gadget-focus "f" get gadget-child eq? ] unit-test
+[ t ] [ "f" get focus>> "f" get gadget-child eq? ] unit-test
 
 [ t ] [ "f" get gadget-child focusing? ] unit-test
diff --git a/extra/ui/gadgets/worlds/worlds.factor b/basis/ui/gadgets/worlds/worlds.factor
similarity index 61%
rename from extra/ui/gadgets/worlds/worlds.factor
rename to basis/ui/gadgets/worlds/worlds.factor
index b63e7f9d2e..cedd03e39e 100755
--- a/extra/ui/gadgets/worlds/worlds.factor
+++ b/basis/ui/gadgets/worlds/worlds.factor
@@ -1,84 +1,84 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs continuations kernel math models
+USING: accessors arrays assocs continuations kernel math models
 namespaces opengl sequences io combinators math.vectors
-ui.gadgets ui.gestures ui.render ui.backend inspector ;
+ui.gadgets ui.gestures ui.render ui.backend ui.gadgets.tracks
+debugger math.geometry.rect ;
 IN: ui.gadgets.worlds
 
-TUPLE: world < identity-tuple
+TUPLE: world < track
 active? focused?
 glass
 title status
 fonts handle
-loc ;
+window-loc ;
 
-: find-world [ world? ] find-parent ;
-
-M: f world-status ;
+: find-world ( gadget -- world/f ) [ world? ] find-parent ;
 
 : show-status ( string/f gadget -- )
-    find-world world-status [ set-model ] [ drop ] if* ;
-
-: show-summary ( object gadget -- )
-    >r [ summary ] [ "" ] if* r> show-status ;
+    find-world dup [
+        status>> dup [ set-model ] [ 2drop ] if
+    ] [ 2drop ] if ;
 
 : hide-status ( gadget -- ) f swap show-status ;
 
+ERROR: no-world-found ;
+
+: find-gl-context ( gadget -- )
+    find-world dup
+    [ handle>> select-gl-context ] [ no-world-found ] if ;
+
 : (request-focus) ( child world ? -- )
-    pick gadget-parent pick eq? [
-        >r >r dup gadget-parent dup r> r>
+    pick parent>> pick eq? [
+        >r >r dup parent>> dup r> r>
         [ (request-focus) ] keep
     ] unless focus-child ;
 
 M: world request-focus-on ( child gadget -- )
     2dup eq?
-    [ 2drop ] [ dup world-focused? (request-focus) ] if ;
+    [ 2drop ] [ dup focused?>> (request-focus) ] if ;
 
 : <world> ( gadget title status -- world )
-    t H{ } clone { 0 0 } {
-        set-gadget-delegate
-        set-world-title
-        set-world-status
-        set-world-active?
-        set-world-fonts
-        set-world-loc
-    } world construct
-    t over set-gadget-root?
+    { 0 1 } world new-track
+        t >>root?
+        t >>active?
+        H{ } clone >>fonts
+        { 0 0 } >>window-loc
+        swap >>status
+        swap >>title
+        swap 1 track-add
     dup request-focus ;
 
-M: world hashcode* drop world hashcode* ;
-
 M: world layout*
-    dup delegate layout*
-    dup world-glass [
-        >r dup rect-dim r> set-layout-dim
+    dup call-next-method
+    dup glass>> [
+        >r dup rect-dim r> (>>dim)
     ] when* drop ;
 
 M: world focusable-child* gadget-child ;
 
-M: world children-on nip gadget-children ;
+M: world children-on nip children>> ;
 
 : (draw-world) ( world -- )
-    dup world-handle [
+    dup handle>> [
         [ dup init-gl ] keep draw-gadget
     ] with-gl-context ;
 
 : draw-world? ( world -- ? )
     #! We don't draw deactivated worlds, or those with 0 size.
     #! On Windows, the latter case results in GL errors.
-    dup world-active?
-    over world-handle
+    dup active?>>
+    over handle>>
     rot rect-dim [ 0 > ] all? and and ;
 
-TUPLE: world-error world ;
+TUPLE: world-error error world ;
 
-: <world-error> ( error world -- error )
-    { set-delegate set-world-error-world }
-    world-error construct ;
+C: <world-error> world-error
 
 SYMBOL: ui-error-hook
 
-: ui-error ( error -- ) ui-error-hook get call ;
+: ui-error ( error -- )
+    ui-error-hook get [ call ] [ print-error ] if* ;
 
 [ rethrow ] ui-error-hook set-global
 
@@ -89,7 +89,7 @@ SYMBOL: ui-error-hook
                 (draw-world)
             ] [
                 over <world-error> ui-error
-                f swap set-world-active?
+                f swap (>>active?)
             ] recover
         ] with-variable
     ] [
diff --git a/basis/ui/gadgets/wrappers/wrappers.factor b/basis/ui/gadgets/wrappers/wrappers.factor
new file mode 100644
index 0000000000..b750e3c2a4
--- /dev/null
+++ b/basis/ui/gadgets/wrappers/wrappers.factor
@@ -0,0 +1,17 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors ui.gadgets kernel ;
+
+IN: ui.gadgets.wrappers
+
+TUPLE: wrapper < gadget ;
+
+: new-wrapper ( child class -- wrapper ) new-gadget swap add-gadget ;
+
+: <wrapper> ( child -- border ) wrapper new-wrapper ;
+
+M: wrapper pref-dim* ( wrapper -- dim ) gadget-child pref-dim ;
+
+M: wrapper layout* ( wrapper -- ) [ dim>> ] [ gadget-child ] bi (>>dim) ;
+
+M: wrapper focusable-child* ( wrapper -- child/t ) gadget-child ;
diff --git a/extra/ui/gadgets/tracks/authors.txt b/basis/ui/gestures/authors.txt
similarity index 100%
rename from extra/ui/gadgets/tracks/authors.txt
rename to basis/ui/gestures/authors.txt
diff --git a/extra/ui/gestures/gestures-docs.factor b/basis/ui/gestures/gestures-docs.factor
similarity index 89%
rename from extra/ui/gestures/gestures-docs.factor
rename to basis/ui/gestures/gestures-docs.factor
index 299498b1b8..0575ff17f0 100644
--- a/extra/ui/gestures/gestures-docs.factor
+++ b/basis/ui/gestures/gestures-docs.factor
@@ -6,18 +6,16 @@ HELP: set-gestures
 { $values { "class" "a class word" } { "hash" hashtable } }
 { $description "Sets the gestures a gadget class responds to. The hashtable maps gestures to quotations with stack effect " { $snippet "( gadget -- )" } "." } ;
 
-HELP: handle-gesture*
-{ $values { "gadget" "the receiver of the gesture" } { "gesture" "a gesture" } { "delegate" "an object" } { "?" "a boolean" } }
-{ $contract "Handles a gesture sent to a gadget. As the delegation chain is traversed, this generic word is called with every delegate of the gadget at the top of the stack, however the front-most delegate remains fixed as the " { $snippet "gadget" } " parameter."
+HELP: handle-gesture
+{ $values { "gesture" "a gesture" } { "gadget" "the receiver of the gesture" } { "?" "a boolean" } }
+{ $contract "Handles a gesture sent to a gadget."
 $nl
-"Outputs " { $link f } " if the gesture was handled, and " { $link t } " if the gesture should be passed on to the gadget's delegate." }
+"Outputs " { $link f } " if the gesture was handled, and " { $link t } " if the gesture should be passed on to the gadget's parent."
+$nl
+"The default implementation looks at the " { $snippet "\"gestures\"" } " word property of each superclass of the gadget's class." }
 { $notes "Methods should be defined on this word if you desire to handle an arbitrary set of gestures. To define handlers for a fixed set, it is easier to use " { $link set-gestures } "." } ;
 
-HELP: handle-gesture
-{ $values { "gesture" "a gesture" } { "gadget" gadget } { "?" "a boolean" } }
-{ $description "Calls " { $link handle-gesture* } " on every delegate of " { $snippet "gadget" } ". Outputs " { $link f } " if some delegate handled the gesture, else outputs " { $link t } "." } ;
-
-{ send-gesture handle-gesture handle-gesture* set-gestures } related-words
+{ send-gesture handle-gesture set-gestures } related-words
 
 HELP: send-gesture
 { $values { "gesture" "a gesture" } { "gadget" gadget } { "?" "a boolean" } }
@@ -32,13 +30,13 @@ HELP: motion
 { $examples { $code "T{ motion }" } } ;
 
 HELP: drag
-{ $class-description "Mouse drag gesture. The " { $link drag-# } " slot is either set to a mouse button number, or " { $link f } " indicating no specific button is expected." } ;
+{ $class-description "Mouse drag gesture. The " { $snippet "#" } " slot is either set to a mouse button number, or " { $link f } " indicating no specific button is expected." } ;
 
 HELP: button-up
 { $class-description "Mouse button up gesture. Instances have two slots:"
     { $list
-        { { $link button-up-mods } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
-        { { $link button-up-# } " - a mouse button number, or " { $link f } " indicating no specific button is expected" }
+        { { $snippet "mods" } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
+        { { $snippet "#" } " - a mouse button number, or " { $link f } " indicating no specific button is expected" }
     }
 }
 { $examples { $code "T{ button-up f f 1 }" "T{ button-up }" } } ;
@@ -46,8 +44,8 @@ HELP: button-up
 HELP: button-down
 { $class-description "Mouse button down gesture. Instances have two slots:"
     { $list
-        { { $link button-down-mods } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
-        { { $link button-down-# } " - a mouse button number, or " { $link f } " indicating no specific button is expected" }
+        { { $snippet "mods" } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
+        { { $snippet "#" } " - a mouse button number, or " { $link f } " indicating no specific button is expected" }
     }
 }
 { $examples { $code "T{ button-down f f 1 }" "T{ button-down }" } } ;
@@ -111,8 +109,8 @@ HELP: S+
 HELP: key-down
 { $class-description "Key down gesture. Instances have two slots:"
     { $list
-        { { $link key-down-mods } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
-    { { $link key-down-sym } " - a string denoting the key pressed; see " { $link "keyboard-gestures" } }
+        { { $snippet "mods" } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
+    { { $snippet "sym" } " - a string denoting the key pressed; see " { $link "keyboard-gestures" } }
     }
 }
 { $examples { $code "T{ key-down f { C+ } \"a\" }" "T{ key-down f f \"TAB\" }" } } ;
@@ -120,8 +118,8 @@ HELP: key-down
 HELP: key-up
 { $class-description "Key up gesture. Instances have two slots:"
     { $list
-        { { $link key-up-mods } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
-    { { $link key-up-sym } " - a string denoting the key pressed; see " { $link "keyboard-gestures" } }
+        { { $snippet "mods" } " - a sequence of modifiers; see " { $link "keyboard-gestures" } }
+    { { $snippet "sym" } " - a string denoting the key pressed; see " { $link "keyboard-gestures" } }
     }
 }
 { $examples { $code "T{ key-up f { C+ } \"a\" }" "T{ key-up f f \"TAB\" }" } } ;
@@ -203,7 +201,7 @@ $nl
 "There are two ways to define gesture handling logic. The simplest way is to associate a fixed set of gestures with a class:"
 { $subsection set-gestures }
 "Another way is to define a generic word on a class which handles all gestures sent to gadgets of that class:"
-{ $subsection handle-gesture* }
+{ $subsection handle-gesture }
 "Sometimes a gesture needs to be presented to the user:"
 { $subsection gesture>string }
 "Keyboard input:"
diff --git a/extra/ui/gestures/gestures.factor b/basis/ui/gestures/gestures.factor
similarity index 86%
rename from extra/ui/gestures/gestures.factor
rename to basis/ui/gestures/gestures.factor
index 5bba095253..1170ea3fd1 100755
--- a/extra/ui/gestures/gestures.factor
+++ b/basis/ui/gestures/gestures.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs kernel math models namespaces
+USING: accessors arrays assocs kernel math models namespaces
 sequences words strings system hashtables math.parser
 math.vectors classes.tuple classes ui.gadgets boxes
 calendar alarms symbols combinators sets columns ;
@@ -8,16 +8,12 @@ IN: ui.gestures
 
 : set-gestures ( class hash -- ) "gestures" set-word-prop ;
 
-GENERIC: handle-gesture* ( gadget gesture delegate -- ? )
+GENERIC: handle-gesture ( gesture gadget -- ? )
 
-: default-gesture-handler ( gadget gesture delegate -- ? )
-    class "gestures" word-prop at dup
-    [ call f ] [ 2drop t ] if ;
-
-M: object handle-gesture* default-gesture-handler ;
-
-: handle-gesture ( gesture gadget -- ? )
-    tuck delegates [ >r 2dup r> handle-gesture* ] all? 2nip ;
+M: object handle-gesture
+    tuck class superclasses
+    [ "gestures" word-prop ] map
+    assoc-stack dup [ call f ] [ 2drop t ] if ;
 
 : send-gesture ( gesture gadget -- ? )
     [ dupd handle-gesture ] each-parent nip ;
@@ -54,7 +50,7 @@ TUPLE: zoom-in-action ;  C: <zoom-in-action> zoom-in-action
 TUPLE: zoom-out-action ; C: <zoom-out-action> zoom-out-action
 
 : generalize-gesture ( gesture -- newgesture )
-    tuple>array but-last >tuple ;
+    clone f >># ;
 
 ! Modifiers
 SYMBOLS: C+ A+ M+ S+ ;
@@ -112,7 +108,7 @@ SYMBOL: double-click-timeout
 
 : drag-gesture ( -- )
     hand-buttons get-global
-    dup empty? [ drop ] [ first <drag> button-gesture ] if ;
+    [ first <drag> button-gesture ] unless-empty ;
 
 SYMBOL: drag-timer
 
@@ -121,7 +117,7 @@ SYMBOL: drag-timer
 : start-drag-timer ( -- )
     hand-buttons get-global empty? [
         [ drag-gesture ]
-        300 milliseconds from-now
+        300 milliseconds hence
         100 milliseconds
         add-alarm drag-timer get-global >box
     ] when ;
@@ -161,20 +157,20 @@ SYMBOL: drag-timer
 
 : focus-child ( child gadget ? -- )
     [
-        dup gadget-focus [
+        dup focus>> [
             dup send-lose-focus
             f swap t focus-child
         ] when*
-        dupd set-gadget-focus [
+        dupd (>>focus) [
             send-gain-focus
         ] when*
     ] [
-        set-gadget-focus
+        (>>focus)
     ] if ;
 
 : modifier ( mod modifiers -- seq )
     [ second swap bitand 0 > ] with filter
-    0 <column> prune dup empty? [ drop f ] [ >array ] if ;
+    0 <column> prune [ f ] [ >array ] if-empty ;
 
 : drag-loc ( -- loc )
     hand-loc get-global hand-click-loc get-global v- ;
@@ -192,7 +188,7 @@ SYMBOL: drag-timer
     dup hand-last-button get = ;
 
 : multi-click-position? ( -- ? )
-    hand-loc get hand-click-loc get v- norm 10 <= ;
+    hand-loc get hand-click-loc get v- norm-sq 100 <= ;
 
 : multi-click? ( button -- ? )
     {
@@ -230,14 +226,14 @@ SYMBOL: drag-timer
 : send-button-down ( gesture loc world -- )
     move-hand
     start-drag-timer
-    dup button-down-#
+    dup #>>
     dup update-click# hand-buttons get-global push
     update-clicked
     button-gesture ;
 
 : send-button-up ( gesture loc world -- )
     move-hand
-    dup button-up-# hand-buttons get-global delete
+    dup #>> hand-buttons get-global delete
     stop-drag-timer
     button-gesture ;
 
@@ -248,7 +244,7 @@ SYMBOL: drag-timer
     drop ;
 
 : world-focus ( world -- gadget )
-    dup gadget-focus [ world-focus ] [ ] ?if ;
+    dup focus>> [ world-focus ] [ ] ?if ;
 
 : send-action ( world gesture -- )
     swap world-focus send-gesture drop ;
@@ -262,24 +258,24 @@ SYMBOL: drag-timer
 GENERIC: gesture>string ( gesture -- string/f )
 
 : modifiers>string ( modifiers -- string )
-    [ word-name ] map concat >string ;
+    [ name>> ] map concat >string ;
 
 M: key-down gesture>string
-    dup key-down-mods modifiers>string
-    swap key-down-sym append ;
+    dup mods>> modifiers>string
+    swap sym>> append ;
 
 M: button-up gesture>string
     [
-        dup button-up-mods modifiers>string %
+        dup mods>> modifiers>string %
         "Click Button" %
-        button-up-# [ " " % # ] when*
+        #>> [ " " % # ] when*
     ] "" make ;
 
 M: button-down gesture>string
     [
-        dup button-down-mods modifiers>string %
+        dup mods>> modifiers>string %
         "Press Button" %
-        button-down-# [ " " % # ] when*
+        #>> [ " " % # ] when*
     ] "" make ;
 
 M: left-action gesture>string drop "Swipe left" ;
diff --git a/extra/ui/gestures/summary.txt b/basis/ui/gestures/summary.txt
similarity index 100%
rename from extra/ui/gestures/summary.txt
rename to basis/ui/gestures/summary.txt
diff --git a/extra/ui/gadgets/viewports/authors.txt b/basis/ui/operations/authors.txt
similarity index 100%
rename from extra/ui/gadgets/viewports/authors.txt
rename to basis/ui/operations/authors.txt
diff --git a/extra/ui/operations/operations-docs.factor b/basis/ui/operations/operations-docs.factor
similarity index 89%
rename from extra/ui/operations/operations-docs.factor
rename to basis/ui/operations/operations-docs.factor
index 5f7ed60f38..ebdf3eee1f 100644
--- a/extra/ui/operations/operations-docs.factor
+++ b/basis/ui/operations/operations-docs.factor
@@ -22,11 +22,11 @@ HELP: operation
 $nl
 "Operations have the following slots:"
 { $list
-    { { $link operation-predicate } " - a quotation with stack effect " { $snippet "( obj -- ? )" } }
-    { { $link operation-command } " - a " { $link word } }
-    { { $link operation-translator } " - a quotation with stack effect " { $snippet "( obj -- newobj )" } ", or " { $link f } }
-    { { $link operation-hook } " - a quotation with stack effect " { $snippet "( obj -- newobj )" } ", or " { $link f } }
-    { { $link operation-listener? } " - a boolean" }
+    { { $snippet "predicate" } " - a quotation with stack effect " { $snippet "( obj -- ? )" } }
+    { { $snippet "command" } " - a " { $link word } }
+    { { $snippet "translator" } " - a quotation with stack effect " { $snippet "( obj -- newobj )" } ", or " { $link f } }
+    { { $snippet "hook" } " - a quotation with stack effect " { $snippet "( obj -- newobj )" } ", or " { $link f } }
+    { { $snippet "listener?" } " - a boolean" }
 } } ;
 
 HELP: operation-gesture
@@ -38,7 +38,7 @@ HELP: operations
 
 HELP: object-operations
 { $values { "obj" object } { "operations" "a sequence of " { $link operation } " instances" } }
-{ $description "Outputs a sequence of operations applicable to the given object, by testing each defined operation's " { $link operation-predicate } " quotation in turn." } ;
+{ $description "Outputs a sequence of operations applicable to the given object, by testing each defined operation's " { $snippet "predicate" } " quotation in turn." } ;
 
 HELP: primary-operation
 { $values { "obj" object } { "operation" "an " { $link operation  } " or " { $link f } } }
diff --git a/extra/ui/operations/operations-tests.factor b/basis/ui/operations/operations-tests.factor
similarity index 87%
rename from extra/ui/operations/operations-tests.factor
rename to basis/ui/operations/operations-tests.factor
index 1072340cce..6e4e7c3a5d 100755
--- a/extra/ui/operations/operations-tests.factor
+++ b/basis/ui/operations/operations-tests.factor
@@ -1,14 +1,14 @@
 IN: ui.operations.tests
 USING: ui.operations ui.commands prettyprint kernel namespaces
 tools.test ui.gadgets ui.gadgets.editors parser io
-io.streams.string math help help.markup ;
+io.streams.string math help help.markup accessors ;
 
 : my-pprint pprint ;
 
 [ drop t ] \ my-pprint [ ] [ ] f operation boa "op" set
 
 [ [ 3 my-pprint ] ] [
-    3 "op" get operation-command command-quot
+    3 "op" get command>> command-quot
 ] unit-test
 
 [ "3" ] [ [ 3 "op" get invoke-command ] with-string-writer ] unit-test
diff --git a/extra/ui/operations/operations.factor b/basis/ui/operations/operations.factor
similarity index 60%
rename from extra/ui/operations/operations.factor
rename to basis/ui/operations/operations.factor
index ac414b2cb9..8b4817dcac 100755
--- a/extra/ui/operations/operations.factor
+++ b/basis/ui/operations/operations.factor
@@ -1,8 +1,8 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions kernel ui.commands ui.gestures
-sequences strings math words generic namespaces hashtables
-help.markup quotations assocs ;
+USING: accessors arrays definitions kernel ui.commands
+ui.gestures sequences strings math words generic namespaces
+hashtables help.markup quotations assocs ;
 IN: ui.operations
 
 SYMBOL: +keyboard+
@@ -12,42 +12,41 @@ SYMBOL: +secondary+
 TUPLE: operation predicate command translator hook listener? ;
 
 : <operation> ( predicate command -- operation )
-    [ ] [ ] {
-        set-operation-predicate
-        set-operation-command
-        set-operation-translator
-        set-operation-hook
-    } operation construct ;
+    operation new
+        [ ] >>hook
+        [ ] >>translator
+        swap >>command
+        swap >>predicate ;
 
 PREDICATE: listener-operation < operation
-    dup operation-command listener-command?
-    swap operation-listener? or ;
+    dup command>> listener-command?
+    swap listener?>> or ;
 
 M: operation command-name
-    operation-command command-name ;
+    command>> command-name ;
 
 M: operation command-description
-    operation-command command-description ;
+    command>> command-description ;
 
-M: operation command-word operation-command command-word ;
+M: operation command-word command>> command-word ;
 
 : operation-gesture ( operation -- gesture )
-    operation-command +keyboard+ word-prop ;
+    command>> +keyboard+ word-prop ;
 
 SYMBOL: operations
 
 : object-operations ( obj -- operations )
-    operations get [ operation-predicate call ] with filter ;
+    operations get [ predicate>> call ] with filter ;
 
 : find-operation ( obj quot -- command )
     >r object-operations r> find-last nip ; inline
 
 : primary-operation ( obj -- operation )
-    [ operation-command +primary+ word-prop ] find-operation ;
+    [ command>> +primary+ word-prop ] find-operation ;
 
 : secondary-operation ( obj -- operation )
     dup
-    [ operation-command +secondary+ word-prop ] find-operation
+    [ command>> +secondary+ word-prop ] find-operation
     [ ] [ primary-operation ] ?if ;
 
 : default-flags ( -- assoc )
@@ -60,9 +59,9 @@ SYMBOL: operations
 
 : modify-operation ( hook translator operation -- operation )
     clone
-    tuck set-operation-translator
-    tuck set-operation-hook
-    t over set-operation-listener? ;
+    tuck (>>translator)
+    tuck (>>hook)
+    t over (>>listener?) ;
 
 : modify-operations ( operations hook translator -- operations )
     rot [ >r 2dup r> modify-operation ] map 2nip ;
@@ -77,9 +76,9 @@ SYMBOL: operations
 : operation-quot ( target command -- quot )
     [
         swap literalize ,
-        dup operation-translator %
-        operation-command ,
+        dup translator>> %
+        command>> ,
     ] [ ] make ;
 
 M: operation invoke-command ( target command -- )
-    [ operation-hook call ] keep operation-quot call ;
+    [ hook>> call ] keep operation-quot call ;
diff --git a/extra/ui/operations/summary.txt b/basis/ui/operations/summary.txt
similarity index 100%
rename from extra/ui/operations/summary.txt
rename to basis/ui/operations/summary.txt
diff --git a/extra/ui/gadgets/worlds/authors.txt b/basis/ui/render/authors.txt
similarity index 100%
rename from extra/ui/gadgets/worlds/authors.txt
rename to basis/ui/render/authors.txt
diff --git a/extra/ui/render/render-docs.factor b/basis/ui/render/render-docs.factor
similarity index 66%
rename from extra/ui/render/render-docs.factor
rename to basis/ui/render/render-docs.factor
index fb4c000971..fc16ed9345 100755
--- a/extra/ui/render/render-docs.factor
+++ b/basis/ui/render/render-docs.factor
@@ -1,27 +1,25 @@
 USING: ui.gadgets ui.gestures help.markup help.syntax
-kernel classes strings opengl.gl models ;
+kernel classes strings opengl.gl models math.geometry.rect ;
 IN: ui.render
 
 HELP: gadget
 { $class-description "An object which displays itself on the screen and acts on user input gestures. Gadgets have the following slots:"
     { $list
-        { { $link gadget-pref-dim } " - a cached value for " { $link pref-dim } "; do not read or write this slot directly." }
-        { { $link gadget-parent } " - the gadget containing this one, or " { $link f } " if this gadget is not part of the visible gadget hierarchy." }
-        { { $link gadget-children } " - a vector of child gadgets. Do not modify this vector directly, instead use " { $link add-gadget } ", " { $link add-gadgets } ", " { $link unparent } " or " { $link clear-gadget } "." }
-        { { $link gadget-orientation } " - an orientation specifier. This slot is used by layout gadgets." }
-        { { $link gadget-layout-state } " - stores the layout state of the gadget. Do not read or write this slot directly, instead call " { $link relayout } " and " { $link relayout-1 } " if the gadget needs to be re-laid out." }
-        { { $link gadget-visible? } " - a boolean indicating if the gadget should display and receive user input." }
-        { { $link gadget-root? } " - if set to " { $link t } ", layout changes in this gadget will not propagate to the gadget's parent." }
-        { { $link gadget-clipped? } " - a boolean indicating if clipping will be enabled when drawing this gadget's children." }
-        { { $link gadget-interior } " - an object whose class implements the " { $link draw-interior } " generic word." }
-        { { $link gadget-boundary } " - an object whose class implements the " { $link draw-boundary } " generic word." }
-        { { $link gadget-model } " - a " { $link model } " or " { $link f } "; see " { $link "ui-control-impl" } }
+        { { $snippet "pref-dim" } " - a cached value for " { $link pref-dim } "; do not read or write this slot directly." }
+        { { $snippet "parent" } " - the gadget containing this one, or " { $link f } " if this gadget is not part of the visible gadget hierarchy." }
+        { { $snippet "children" } " - a vector of child gadgets. Do not modify this vector directly, instead use " { $link add-gadget } ", " { $link add-gadgets } ", " { $link unparent } " or " { $link clear-gadget } "." }
+        { { $snippet "orientation" } " - an orientation specifier. This slot is used by layout gadgets." }
+        { { $snippet "layout-state" } " - stores the layout state of the gadget. Do not read or write this slot directly, instead call " { $link relayout } " and " { $link relayout-1 } " if the gadget needs to be re-laid out." }
+        { { $snippet "visible?" } " - a boolean indicating if the gadget should display and receive user input." }
+        { { $snippet "root?" } " - if set to " { $link t } ", layout changes in this gadget will not propagate to the gadget's parent." }
+        { { $snippet "clipped?" } " - a boolean indicating if clipping will be enabled when drawing this gadget's children." }
+        { { $snippet "interior" } " - an object whose class implements the " { $link draw-interior } " generic word." }
+        { { $snippet "boundary" } " - an object whose class implements the " { $link draw-boundary } " generic word." }
+        { { $snippet "model" } " - a " { $link model } " or " { $link f } "; see " { $link "ui-control-impl" } }
     }
-"Gadgets delegate to " { $link rect } " instances holding their location and dimensions." }
+"Gadgets subclass the " { $link rect } " class, and thus all instances have " { $snippet "loc" } " and " { $snippet "dim" } " instances holding their location and dimensions." }
 { $notes
-"Other classes may delegate to " { $link gadget } " in order to re-implement generic words such as " { $link draw-gadget* } " and " { $link user-input* } ", or to define gestures with " { $link set-gestures } "." }
-{ $warning
-"When setting a tuple's delegate to be a gadget, " { $link set-gadget-delegate } " should be used instead of " { $link set-delegate } "." } ;
+"Other classes may inherit from " { $link gadget } " in order to re-implement generic words such as " { $link draw-gadget* } " and " { $link user-input* } ", or to define gestures with " { $link set-gestures } "." } ;
 
 HELP: clip
 { $var-description "The current clipping rectangle." } ;
@@ -33,23 +31,23 @@ HELP: draw-gadget*
 
 HELP: draw-interior
 { $values { "interior" object } { "gadget" gadget } } 
-{ $contract "Draws the interior of a gadget by making OpenGL calls. The " { $link gadget-interior } " slot may be set to objects implementing this generic word." } ;
+{ $contract "Draws the interior of a gadget by making OpenGL calls. The " { $snippet "interior" } " slot may be set to objects implementing this generic word." } ;
 
 HELP: draw-boundary
 { $values { "boundary" object } { "gadget" gadget } } 
-{ $contract "Draws the boundary of a gadget by making OpenGL calls. The " { $link gadget-boundary } " slot may be set to objects implementing this generic word." } ;
+{ $contract "Draws the boundary of a gadget by making OpenGL calls. The " { $snippet "boundary" } " slot may be set to objects implementing this generic word." } ;
 
 HELP: solid
-{ $class-description "A class implementing the " { $link draw-boundary } " and " { $link draw-interior } " generic words to draw a solid outline or a solid fill, respectively. The " { $link solid-color } " slot stores a color specifier." } ;
+{ $class-description "A class implementing the " { $link draw-boundary } " and " { $link draw-interior } " generic words to draw a solid outline or a solid fill, respectively. The " { $snippet "color" } " slot stores a color specifier." } ;
 
 HELP: gradient
-{ $class-description "A class implementing the " { $link draw-interior } " generic word to draw a smoothly shaded transition between colors. The " { $link gradient-colors } " slot stores a sequence of color specifiers and the gradient is drawn in the direction given by the " { $link gadget-orientation } " slot of the gadget." } ;
+{ $class-description "A class implementing the " { $link draw-interior } " generic word to draw a smoothly shaded transition between colors. The " { $snippet "colors" } " slot stores a sequence of color specifiers and the gradient is drawn in the direction given by the " { $snippet "orientation" } " slot of the gadget." } ;
 
 HELP: polygon
 { $class-description "A class implementing the " { $link draw-boundary } " and " { $link draw-interior } " generic words to draw a solid outline or a solid filled polygon, respectively. Instances of " { $link polygon } " have two slots:"
     { $list
-        { { $link polygon-color } " - a color specifier" }
-        { { $link polygon-points } " - a sequence of points" }
+        { { $snippet "color" } " - a color specifier" }
+        { { $snippet "points" } " - a sequence of points" }
     }
 } ;
 
@@ -96,17 +94,17 @@ ARTICLE: "gadgets-polygons" "Polygon gadgets"
 ARTICLE: "ui-paint" "Customizing gadget appearance"
 "The UI carries out the following steps when drawing a gadget:"
 { $list
-    { "The " { $link draw-interior } " generic word is called on the value of the " { $link gadget-interior } " slot." }
+    { "The " { $link draw-interior } " generic word is called on the value of the " { $snippet "interior" } " slot." }
     { "The " { $link draw-gadget* } " generic word is called on the gadget." }
     { "The gadget's visible children are drawn, determined by calling " { $link visible-children } " on the gadget." }
-    { "The " { $link draw-boundary } " generic word is called on the value of the " { $link gadget-boundary } " slot." }
+    { "The " { $link draw-boundary } " generic word is called on the value of the " { $snippet "boundary" } " slot." }
 }
 "Now, each one of these steps will be covered in detail."
 { $subsection "ui-pen-protocol" }
 { $subsection "ui-paint-custom" } ;
 
 ARTICLE: "ui-pen-protocol" "UI pen protocol"
-"The " { $link gadget-interior } " and " { $link gadget-boundary } " slots of a gadget facilitate easy factoring and sharing of drawing logic. Objects stored in these slots must implement the pen protocol:"
+"The " { $snippet "interior" } " and " { $snippet "boundary" } " slots of a gadget facilitate easy factoring and sharing of drawing logic. Objects stored in these slots must implement the pen protocol:"
 { $subsection draw-interior }
 { $subsection draw-boundary }
 "The default value of these slots is the " { $link f } " singleton, which implements the above protocol by doing nothing."
@@ -141,7 +139,7 @@ $nl
 $nl
 "OpenGL state must not be altered as a result of drawing a gadget, so any flags which were enabled should be disabled, and vice versa."
 $nl
-"Gadgets must not draw outside of their bounding box, however clipping is not enforced by default, for performance reasons. This can be changed by setting the " { $link gadget-clipped? } " slot to " { $link t } " in the gadget's constructor."
+"Gadgets must not draw outside of their bounding box, however clipping is not enforced by default, for performance reasons. This can be changed by setting the " { $snippet "clipped?" } " slot to " { $link t } " in the gadget's constructor."
 $nl
 "Saving the " { $link GL_MODELVIEW } " matrix and enabling/disabling flags can be done in a clean way using the combinators documented in the following section."
 { $subsection "gl-utilities" }
diff --git a/extra/ui/render/render.factor b/basis/ui/render/render.factor
similarity index 86%
rename from extra/ui/render/render.factor
rename to basis/ui/render/render.factor
index d33a789fe7..2147fc2b53 100644
--- a/extra/ui/render/render.factor
+++ b/basis/ui/render/render.factor
@@ -1,8 +1,9 @@
 ! Copyright (C) 2005, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien arrays hashtables io kernel math namespaces opengl
+USING: accessors alien arrays hashtables io kernel math namespaces opengl
 opengl.gl opengl.glu sequences strings io.styles vectors
-combinators math.vectors ui.gadgets colors math.order ;
+combinators math.vectors ui.gadgets colors
+math.order math.geometry.rect ;
 IN: ui.render
 
 SYMBOL: clip
@@ -34,7 +35,7 @@ SYMBOL: viewport-translation
     init-clip
     ! white gl-clear is broken w.r.t window resizing
     ! Linux/PPC Radeon 9200
-    white gl-color
+    white set-color
     clip get rect-extent gl-fill-rect ;
 
 GENERIC: draw-gadget* ( gadget -- )
@@ -59,10 +60,10 @@ DEFER: draw-gadget
 : (draw-gadget) ( gadget -- )
     [
         dup translate
-        dup dup gadget-interior draw-interior
+        dup dup interior>> draw-interior
         dup draw-gadget*
         dup visible-children [ draw-gadget ] each
-        dup gadget-boundary draw-boundary
+        dup boundary>> draw-boundary
     ] with-scope ;
 
 : >absolute ( rect -- rect )
@@ -78,8 +79,8 @@ DEFER: draw-gadget
 
 : draw-gadget ( gadget -- )
     {
-        { [ dup gadget-visible? not ] [ drop ] }
-        { [ dup gadget-clipped? not ] [ (draw-gadget) ] }
+        { [ dup visible?>> not ] [ drop ] }
+        { [ dup clipped?>> not ] [ (draw-gadget) ] }
         [ [ (draw-gadget) ] with-clipping ]
     } cond ;
 
@@ -93,8 +94,8 @@ TUPLE: solid color ;
 C: <solid> solid
 
 ! Solid pen
-: (solid)
-    solid-color gl-color rect-dim >r origin get dup r> v+ ;
+: (solid) ( gadget paint -- loc dim )
+    color>> set-color rect-dim >r origin get dup r> v+ ;
 
 M: solid draw-interior (solid) gl-fill-rect ;
 
@@ -107,8 +108,8 @@ C: <gradient> gradient
 
 M: gradient draw-interior
     origin get [
-        over gadget-orientation
-        swap gradient-colors
+        over orientation>>
+        swap colors>>
         rot rect-dim
         gl-gradient
     ] with-translation ;
@@ -120,7 +121,7 @@ C: <polygon> polygon
 
 : draw-polygon ( polygon quot -- )
     origin get [
-        >r dup polygon-color gl-color polygon-points r> call
+        >r dup color>> set-color points>> r> call
     ] with-translation ; inline
 
 M: polygon draw-boundary
@@ -137,8 +138,8 @@ M: polygon draw-interior
 
 : <polygon-gadget> ( color points -- gadget )
     dup max-dim
-    >r <polygon> <gadget> r> over set-rect-dim
-    [ set-gadget-interior ] keep ;
+    >r <polygon> <gadget> r> >>dim
+    [ (>>interior) ] keep ;
 
 ! Font rendering
 SYMBOL: font-renderer
diff --git a/extra/ui/render/summary.txt b/basis/ui/render/summary.txt
similarity index 100%
rename from extra/ui/render/summary.txt
rename to basis/ui/render/summary.txt
diff --git a/extra/ui/summary.txt b/basis/ui/summary.txt
similarity index 100%
rename from extra/ui/summary.txt
rename to basis/ui/summary.txt
diff --git a/extra/ui/gestures/authors.txt b/basis/ui/tools/authors.txt
similarity index 100%
rename from extra/ui/gestures/authors.txt
rename to basis/ui/tools/authors.txt
diff --git a/extra/ui/operations/authors.txt b/basis/ui/tools/browser/authors.txt
similarity index 100%
rename from extra/ui/operations/authors.txt
rename to basis/ui/tools/browser/authors.txt
diff --git a/extra/ui/tools/browser/browser-tests.factor b/basis/ui/tools/browser/browser-tests.factor
similarity index 100%
rename from extra/ui/tools/browser/browser-tests.factor
rename to basis/ui/tools/browser/browser-tests.factor
diff --git a/extra/ui/tools/browser/browser.factor b/basis/ui/tools/browser/browser.factor
similarity index 52%
rename from extra/ui/tools/browser/browser.factor
rename to basis/ui/tools/browser/browser.factor
index b8a6f7ec2c..33523701aa 100755
--- a/extra/ui/tools/browser/browser.factor
+++ b/basis/ui/tools/browser/browser.factor
@@ -1,71 +1,67 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: debugger ui.tools.workspace help help.topics kernel
-models ui.commands ui.gadgets ui.gadgets.panes
+models models.history ui.commands ui.gadgets ui.gadgets.panes
 ui.gadgets.scrollers ui.gadgets.tracks ui.gestures
-ui.gadgets.buttons compiler.units assocs words vocabs ;
+ui.gadgets.buttons compiler.units assocs words vocabs
+accessors ;
 IN: ui.tools.browser
 
-TUPLE: browser-gadget pane history ;
+TUPLE: browser-gadget < track pane history ;
 
 : show-help ( link help -- )
-    dup browser-gadget-history add-history
-    >r >link r> browser-gadget-history set-model ;
+    dup history>> add-history
+    >r >link r> history>> set-model ;
 
 : <help-pane> ( browser-gadget -- gadget )
-    browser-gadget-history
-    [ [ dup help ] try drop ] <pane-control> ;
+    history>> [ [ help ] curry try ] <pane-control> ;
 
 : init-history ( browser-gadget -- )
-    "handbook" >link <history>
-    swap set-browser-gadget-history ;
+    "handbook" >link <history> >>history drop ;
 
 : <browser-gadget> ( -- gadget )
-    browser-gadget new
-    dup init-history [
-        toolbar,
-        g <help-pane> g-> set-browser-gadget-pane
-        <scroller> 1 track,
-    ] { 0 1 } build-track ;
+  { 0 1 } browser-gadget new-track
+    dup init-history
+    dup <toolbar> f track-add
+    dup <help-pane> >>pane
+    dup pane>> <scroller> 1 track-add ;
 
 M: browser-gadget call-tool* show-help ;
 
 M: browser-gadget tool-scroller
-    browser-gadget-pane find-scroller ;
+    pane>> find-scroller ;
 
 M: browser-gadget graft*
-    dup add-definition-observer
-    delegate graft* ;
+    [ add-definition-observer ] [ call-next-method ] bi ;
 
 M: browser-gadget ungraft*
-    dup delegate ungraft*
-    remove-definition-observer ;
+    [ call-next-method ] [ remove-definition-observer ] bi ;
 
 : showing-definition? ( defspec assoc -- ? )
     [ key? ] 2keep
-    [ >r dup word-link? [ link-name ] when r> key? ] 2keep
+    [ >r dup word-link? [ name>> ] when r> key? ] 2keep
     >r dup vocab-link? [ vocab ] when r> key?
     or or ;
 
 M: browser-gadget definitions-changed ( assoc browser -- )
-    browser-gadget-history
-    dup model-value rot showing-definition?
+    history>>
+    dup value>> rot showing-definition?
     [ notify-connections ] [ drop ] if ;
 
 : help-action ( browser-gadget -- link )
-    browser-gadget-history model-value >link ;
+    history>> value>> >link ;
 
-: com-follow browser-gadget call-tool ;
+: com-follow ( link -- ) browser-gadget call-tool ;
 
-: com-back browser-gadget-history go-back ;
+: com-back ( browser -- ) history>> go-back ;
 
-: com-forward browser-gadget-history go-forward ;
+: com-forward ( browser -- ) history>> go-forward ;
 
-: com-documentation "handbook" swap show-help ;
+: com-documentation ( browser -- ) "handbook" swap show-help ;
 
-: com-vocabularies "vocab-index" swap show-help ;
+: com-vocabularies ( browser -- ) "vocab-index" swap show-help ;
 
-: browser-help "ui-browser" help-window ;
+: browser-help ( -- ) "ui-browser" help-window ;
 
 \ browser-help H{ { +nullary+ t } } define-command
 
diff --git a/extra/ui/tools/browser/summary.txt b/basis/ui/tools/browser/summary.txt
similarity index 100%
rename from extra/ui/tools/browser/summary.txt
rename to basis/ui/tools/browser/summary.txt
diff --git a/extra/tools/time/tags.txt b/basis/ui/tools/browser/tags.txt
similarity index 100%
rename from extra/tools/time/tags.txt
rename to basis/ui/tools/browser/tags.txt
diff --git a/extra/ui/render/authors.txt b/basis/ui/tools/debugger/authors.txt
similarity index 100%
rename from extra/ui/render/authors.txt
rename to basis/ui/tools/debugger/authors.txt
diff --git a/extra/ui/tools/debugger/debugger-docs.factor b/basis/ui/tools/debugger/debugger-docs.factor
similarity index 100%
rename from extra/ui/tools/debugger/debugger-docs.factor
rename to basis/ui/tools/debugger/debugger-docs.factor
diff --git a/basis/ui/tools/debugger/debugger.factor b/basis/ui/tools/debugger/debugger.factor
new file mode 100644
index 0000000000..4ba4374bb8
--- /dev/null
+++ b/basis/ui/tools/debugger/debugger.factor
@@ -0,0 +1,62 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays ui ui.commands ui.gestures ui.gadgets
+       ui.gadgets.worlds ui.gadgets.packs ui.gadgets.buttons
+       ui.gadgets.labels ui.gadgets.panes ui.gadgets.presentations
+       ui.gadgets.viewports ui.gadgets.lists ui.gadgets.tracks
+       ui.gadgets.scrollers ui.gadgets.panes hashtables io kernel math
+       models namespaces sequences sequences words continuations
+       debugger prettyprint ui.tools.traceback help editors ;
+
+IN: ui.tools.debugger
+
+: <restart-list> ( restarts restart-hook -- gadget )
+    [ name>> ] rot <model> <list> ;
+
+TUPLE: debugger < track restarts ;
+
+: <debugger-display> ( restart-list error -- gadget )
+    <filled-pile>
+        <pane>
+            swapd tuck [ print-error ] with-pane
+        add-gadget
+
+        swap add-gadget ;
+
+: <debugger> ( error restarts restart-hook -- gadget )
+    { 0 1 } debugger new-track
+        dup <toolbar> f track-add
+        -rot <restart-list> >>restarts
+        dup restarts>> rot <debugger-display> <scroller> 1 track-add ;
+
+M: debugger focusable-child* restarts>> ;
+
+: debugger-window ( error -- )
+    #! No restarts for the debugger window
+    f [ drop ] <debugger> "Error" open-window ;
+
+[ debugger-window ] ui-error-hook set-global
+
+M: world-error error.
+    "An error occurred while drawing the world " write
+    dup world>> pprint-short "." print
+    "This world has been deactivated to prevent cascading errors." print
+    error>> error. ;
+
+debugger "gestures" f {
+    { T{ button-down } request-focus }
+} define-command-map
+
+: com-traceback ( -- ) error-continuation get traceback-window ;
+
+\ com-traceback H{ { +nullary+ t } } define-command
+
+\ :help H{ { +nullary+ t } { +listener+ t } } define-command
+
+\ :edit H{ { +nullary+ t } { +listener+ t } } define-command
+
+debugger "toolbar" f {
+    { T{ key-down f f "s" } com-traceback }
+    { T{ key-down f f "h" } :help }
+    { T{ key-down f f "e" } :edit }
+} define-command-map
diff --git a/extra/ui/tools/debugger/summary.txt b/basis/ui/tools/debugger/summary.txt
similarity index 100%
rename from extra/ui/tools/debugger/summary.txt
rename to basis/ui/tools/debugger/summary.txt
diff --git a/extra/tools/vocabs/browser/tags.txt b/basis/ui/tools/debugger/tags.txt
similarity index 100%
rename from extra/tools/vocabs/browser/tags.txt
rename to basis/ui/tools/debugger/tags.txt
diff --git a/extra/ui/tools/authors.txt b/basis/ui/tools/deploy/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/ui/tools/authors.txt
rename to basis/ui/tools/deploy/authors.txt
diff --git a/extra/ui/tools/deploy/deploy-docs.factor b/basis/ui/tools/deploy/deploy-docs.factor
similarity index 100%
rename from extra/ui/tools/deploy/deploy-docs.factor
rename to basis/ui/tools/deploy/deploy-docs.factor
diff --git a/basis/ui/tools/deploy/deploy.factor b/basis/ui/tools/deploy/deploy.factor
new file mode 100755
index 0000000000..285757e390
--- /dev/null
+++ b/basis/ui/tools/deploy/deploy.factor
@@ -0,0 +1,119 @@
+! Copyright (C) 2007 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: ui.gadgets colors kernel ui.render namespaces
+       models models.mapping sequences ui.gadgets.buttons
+       ui.gadgets.packs ui.gadgets.labels tools.deploy.config
+       namespaces ui.gadgets.editors ui.gadgets.borders ui.gestures
+       ui.commands assocs ui.gadgets.tracks ui ui.tools.listener
+       tools.deploy vocabs ui.tools.workspace system accessors ;
+
+IN: ui.tools.deploy
+
+TUPLE: deploy-gadget < pack vocab settings ;
+
+: bundle-name ( parent -- parent )
+    deploy-name get <field>
+    "Executable name:" label-on-left add-gadget ;
+
+: deploy-ui ( parent -- parent )
+    deploy-ui? get
+    "Include user interface framework" <checkbox> add-gadget ;
+
+: exit-when-windows-closed ( parent -- parent )
+    "stop-after-last-window?" get
+    "Exit when last UI window closed" <checkbox> add-gadget ;
+
+: io-settings ( parent -- parent )
+    "Input/output support:" <label> add-gadget
+    deploy-io get deploy-io-options <radio-buttons> add-gadget ;
+
+: reflection-settings ( parent -- parent )
+    "Reflection support:" <label> add-gadget
+    deploy-reflection get deploy-reflection-options <radio-buttons> add-gadget ;
+
+: advanced-settings ( parent -- parent )
+    "Advanced:" <label> add-gadget
+    deploy-compiler? get "Use optimizing compiler" <checkbox> add-gadget
+    deploy-math? get "Rational and complex number support" <checkbox> add-gadget
+    deploy-threads? get "Threading support" <checkbox> add-gadget
+    deploy-random? get "Random number generator support" <checkbox> add-gadget
+    deploy-word-props? get "Retain all word properties" <checkbox> add-gadget
+    deploy-word-defs? get "Retain all word definitions" <checkbox> add-gadget
+    deploy-c-types? get "Retain all C types" <checkbox> add-gadget ;
+
+: deploy-settings-theme ( gadget -- gadget )
+  { 10 10 } >>gap
+  1         >>fill ;
+
+: <deploy-settings> ( vocab -- control )
+    default-config [ <model> ] assoc-map
+        [
+            <pile>
+            bundle-name
+            deploy-ui
+            os macosx? [ exit-when-windows-closed ] when
+            io-settings
+            reflection-settings
+            advanced-settings
+
+            deploy-settings-theme
+            namespace <mapping> over (>>model)
+        ]
+    bind ;
+
+: find-deploy-gadget ( gadget -- deploy-gadget )
+    [ deploy-gadget? ] find-parent ;
+
+: find-deploy-vocab ( gadget -- vocab )
+    find-deploy-gadget vocab>> ;
+
+: find-deploy-config ( gadget -- config )
+    find-deploy-vocab deploy-config ;
+
+: find-deploy-settings ( gadget -- settings )
+    find-deploy-gadget settings>> ;
+
+: com-revert ( gadget -- )
+    dup find-deploy-config
+    swap find-deploy-settings set-control-value ;
+
+: com-save ( gadget -- )
+    dup find-deploy-settings control-value
+    swap find-deploy-vocab set-deploy-config ;
+
+: com-deploy ( gadget -- )
+    dup com-save
+    dup find-deploy-vocab [ deploy ] curry call-listener
+    close-window ;
+
+: com-help ( -- )
+    "ui.tools.deploy" help-window ;
+
+\ com-help H{
+    { +nullary+ t }
+} define-command
+
+: com-close ( gadget -- )
+    close-window ;
+
+deploy-gadget "toolbar" f {
+    { f com-close }
+    { f com-help }
+    { f com-revert }
+    { f com-save }
+    { T{ key-down f f "RET" } com-deploy }
+} define-command-map
+
+: <deploy-gadget> ( vocab -- gadget )
+    deploy-gadget new-gadget
+      over                           >>vocab
+      { 0 1 }                        >>orientation
+      swap <deploy-settings>         >>settings    
+      dup settings>>                 add-gadget
+      dup <toolbar> { 10 10 } >>gap  add-gadget
+    deploy-settings-theme
+    dup com-revert ;
+    
+: deploy-tool ( vocab -- )
+    vocab-name dup <deploy-gadget> 10 <border>
+    "Deploying \"" rot "\"" 3append open-window ;
diff --git a/extra/ui/tools/browser/authors.txt b/basis/ui/tools/inspector/authors.txt
similarity index 100%
rename from extra/ui/tools/browser/authors.txt
rename to basis/ui/tools/inspector/authors.txt
diff --git a/extra/ui/tools/inspector/inspector.factor b/basis/ui/tools/inspector/inspector.factor
similarity index 52%
rename from extra/ui/tools/inspector/inspector.factor
rename to basis/ui/tools/inspector/inspector.factor
index e4079a331e..273d6bc549 100644
--- a/extra/ui/tools/inspector/inspector.factor
+++ b/basis/ui/tools/inspector/inspector.factor
@@ -1,37 +1,36 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: ui.tools.workspace inspector kernel ui.commands
+USING: accessors ui.tools.workspace inspector kernel ui.commands
 ui.gadgets ui.gadgets.panes ui.gadgets.scrollers
 ui.gadgets.slots ui.gadgets.tracks ui.gestures
 ui.gadgets.buttons namespaces ;
 IN: ui.tools.inspector
 
-TUPLE: inspector-gadget object pane ;
+TUPLE: inspector-gadget < track object pane ;
 
 : refresh ( inspector -- )
-    dup inspector-gadget-object swap inspector-gadget-pane [
-        H{ { +editable+ t } { +number-rows+ t } } describe*
+    [ object>> ] [ pane>> ] bi [
+        +editable+ on
+        +number-rows+ on
+        describe
     ] with-pane ;
 
 : <inspector-gadget> ( -- gadget )
-    inspector-gadget new
-    [
-        toolbar,
-        <pane> g-> set-inspector-gadget-pane <scroller> 1 track,
-    ] { 0 1 } build-track ;
-
-: inspect-object ( obj inspector -- )
-    [ set-inspector-gadget-object ] keep refresh ;
+  { 0 1 } inspector-gadget new-track
+    dup <toolbar> f track-add
+    <pane> >>pane
+    dup pane>> <scroller> 1 track-add ;
+    
+: inspect-object ( obj mirror keys inspector -- )
+    2nip swap >>object refresh ;
 
 \ &push H{ { +nullary+ t } { +listener+ t } } define-command
 
 \ &back H{ { +nullary+ t } { +listener+ t } } define-command
 
-: globals ( -- ) global inspect ;
+\ &globals H{ { +nullary+ t } { +listener+ t } } define-command
 
-\ globals H{ { +nullary+ t } { +listener+ t } } define-command
-
-: inspector-help "ui-inspector" help-window ;
+: inspector-help ( -- ) "ui-inspector" help-window ;
 
 \ inspector-help H{ { +nullary+ t } } define-command
 
@@ -39,7 +38,7 @@ inspector-gadget "toolbar" f {
     { T{ update-object } refresh }
     { f &push }
     { f &back }
-    { f globals }
+    { f &globals }
     { T{ key-down f f "F1" } inspector-help }
 } define-command-map
 
@@ -48,4 +47,4 @@ inspector-gadget "multi-touch" f {
 } define-command-map
 
 M: inspector-gadget tool-scroller
-    inspector-gadget-pane find-scroller ;
+    pane>> find-scroller ;
diff --git a/extra/ui/tools/inspector/summary.txt b/basis/ui/tools/inspector/summary.txt
similarity index 100%
rename from extra/ui/tools/inspector/summary.txt
rename to basis/ui/tools/inspector/summary.txt
diff --git a/extra/ui/tools/browser/tags.txt b/basis/ui/tools/inspector/tags.txt
similarity index 100%
rename from extra/ui/tools/browser/tags.txt
rename to basis/ui/tools/inspector/tags.txt
diff --git a/extra/ui/tools/debugger/authors.txt b/basis/ui/tools/interactor/authors.txt
similarity index 100%
rename from extra/ui/tools/debugger/authors.txt
rename to basis/ui/tools/interactor/authors.txt
diff --git a/extra/ui/tools/interactor/interactor-docs.factor b/basis/ui/tools/interactor/interactor-docs.factor
similarity index 100%
rename from extra/ui/tools/interactor/interactor-docs.factor
rename to basis/ui/tools/interactor/interactor-docs.factor
diff --git a/extra/ui/tools/interactor/interactor-tests.factor b/basis/ui/tools/interactor/interactor-tests.factor
similarity index 53%
rename from extra/ui/tools/interactor/interactor-tests.factor
rename to basis/ui/tools/interactor/interactor-tests.factor
index f8d5e33df9..37f43faa8b 100755
--- a/extra/ui/tools/interactor/interactor-tests.factor
+++ b/basis/ui/tools/interactor/interactor-tests.factor
@@ -1,7 +1,7 @@
 IN: ui.tools.interactor.tests
 USING: ui.tools.interactor ui.gadgets.panes namespaces
 ui.gadgets.editors concurrency.promises threads listener
-tools.test kernel calendar parser accessors ;
+tools.test kernel calendar parser accessors calendar io ;
 
 \ <interactor> must-infer
 
@@ -41,3 +41,47 @@ tools.test kernel calendar parser accessors ;
 [ ] [ 1000 sleep ] unit-test
 
 [ ] [ "interactor" get interactor-eof ] unit-test
+
+[ ] [ <pane> <pane-stream> <interactor> "interactor" set ] unit-test
+
+: text "Hello world.\nThis is a test." ;
+
+[ ] [ text "interactor" get set-editor-string ] unit-test
+
+[ ] [ <promise> "promise" set ] unit-test
+
+[ ] [
+    [
+        "interactor" get register-self
+        "interactor" get contents "promise" get fulfill
+    ] in-thread
+] unit-test
+
+[ ] [ 100 sleep ] unit-test
+
+[ ] [ "interactor" get evaluate-input ] unit-test
+
+[ ] [ 100 sleep ] unit-test
+    
+[ ] [ "interactor" get interactor-eof ] unit-test
+
+[ t ] [ "promise" get 2 seconds ?promise-timeout text = ] unit-test
+
+[ ] [ <pane> <pane-stream> <interactor> "interactor" set ] unit-test
+
+[ ] [ text "interactor" get set-editor-string ] unit-test
+
+[ ] [ <promise> "promise" set ] unit-test
+
+[ ] [
+    [
+        "interactor" get register-self
+        "interactor" get stream-read1 "promise" get fulfill
+    ] in-thread
+] unit-test
+
+[ ] [ 100 sleep ] unit-test
+
+[ ] [ "interactor" get evaluate-input ] unit-test
+
+[ CHAR: H ] [ "promise" get 2 seconds ?promise-timeout ] unit-test
diff --git a/extra/ui/tools/interactor/interactor.factor b/basis/ui/tools/interactor/interactor.factor
similarity index 71%
rename from extra/ui/tools/interactor/interactor.factor
rename to basis/ui/tools/interactor/interactor.factor
index 400169908b..a36610a7f5 100755
--- a/extra/ui/tools/interactor/interactor.factor
+++ b/basis/ui/tools/interactor/interactor.factor
@@ -2,16 +2,18 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays assocs combinators continuations documents
 hashtables io io.styles kernel math math.order math.vectors
-models namespaces parser prettyprint quotations sequences
-strings threads listener classes.tuple ui.commands ui.gadgets
-ui.gadgets.editors ui.gadgets.presentations ui.gadgets.worlds
-ui.gestures definitions calendar concurrency.flags
-concurrency.mailboxes ui.tools.workspace accessors sets ;
+models models.delay namespaces parser lexer prettyprint
+quotations sequences strings threads listener classes.tuple
+ui.commands ui.gadgets ui.gadgets.editors ui.gadgets.status-bar
+ui.gadgets.presentations ui.gadgets.worlds ui.gestures
+definitions calendar concurrency.flags concurrency.mailboxes
+ui.tools.workspace accessors sets destructors ;
 IN: ui.tools.interactor
 
 ! If waiting is t, we're waiting for user input, and invoking
 ! evaluate-input resumes the thread.
-TUPLE: interactor output history flag mailbox thread waiting help ;
+TUPLE: interactor < source-editor
+output history flag mailbox thread waiting help ;
 
 : register-self ( interactor -- )
     <mailbox> >>mailbox
@@ -34,26 +36,24 @@ TUPLE: interactor output history flag mailbox thread waiting help ;
         assoc-stack
     ] if ;
 
-: <help-model> ( interactor -- model )
-    editor-caret 1/3 seconds <delay> ;
+: <help-model> ( interactor -- model ) caret>> 1/3 seconds <delay> ;
 
 : <interactor> ( output -- gadget )
-    <source-editor>
-    interactor construct-editor
+    interactor new-editor
         V{ } clone >>history
         <flag> >>flag
         dup <help-model> >>help
         swap >>output ;
 
 M: interactor graft*
-    [ delegate graft* ] [ dup help>> add-connection ] bi ;
+    [ call-next-method ] [ dup help>> add-connection ] bi ;
 
 M: interactor ungraft*
-    [ dup help>> remove-connection ] [ delegate ungraft ] bi ;
+    [ dup help>> remove-connection ] [ call-next-method ] bi ;
 
 : word-at-loc ( loc interactor -- word )
     over [
-        [ gadget-model T{ one-word-elt } elt-string ] keep
+        [ model>> T{ one-word-elt } elt-string ] keep
         interactor-use assoc-stack
     ] [
         2drop f
@@ -61,9 +61,9 @@ M: interactor ungraft*
 
 M: interactor model-changed
     2dup help>> eq? [
-        swap model-value over word-at-loc swap show-summary
+        swap value>> over word-at-loc swap show-summary
     ] [
-        delegate model-changed
+        call-next-method
     ] if ;
 
 : write-input ( string input -- )
@@ -76,12 +76,12 @@ M: interactor model-changed
     ] with-output-stream* ;
 
 : add-interactor-history ( str interactor -- )
-    over empty? [ 2drop ] [ interactor-history adjoin ] if ;
+    over empty? [ 2drop ] [ history>> adjoin ] if ;
 
 : interactor-continue ( obj interactor -- )
     mailbox>> mailbox-put ;
 
-: clear-input ( interactor -- ) gadget-model clear-doc ;
+: clear-input ( interactor -- ) model>> clear-doc ;
 
 : interactor-finish ( interactor -- )
     #! The spawn is a kludge to make it infer. Stupid.
@@ -110,9 +110,11 @@ M: interactor model-changed
         } cleave
     ] [ drop f ] if ;
 
+: interactor-read ( interactor -- lines )
+    [ interactor-yield ] [ interactor-finish ] bi ;
+
 M: interactor stream-readln
-    [ interactor-yield ] [ interactor-finish ] bi
-    dup [ first ] when ;
+    interactor-read dup [ first ] when ;
 
 : interactor-call ( quot interactor -- )
     dup interactor-busy? [
@@ -124,19 +126,29 @@ M: interactor stream-read
     swap dup zero? [
         2drop ""
     ] [
-        >r stream-readln dup length r> min head
+        >r interactor-read dup [ "\n" join ] when r> short head
     ] if ;
 
 M: interactor stream-read-partial
     stream-read ;
 
+M: interactor stream-read1
+    dup interactor-read {
+        { [ dup not ] [ 2drop f ] }
+        { [ dup empty? ] [ drop stream-read1 ] }
+        { [ dup first empty? ] [ 2drop CHAR: \n ] }
+        [ nip first first ]
+    } cond ;
+
+M: interactor dispose drop ;
+
 : go-to-error ( interactor error -- )
     [ line>> 1- ] [ column>> ] bi 2array
     over set-caret
     mark>caret ;
 
 : handle-parse-error ( interactor error -- )
-    dup parse-error? [ 2dup go-to-error error>> ] when
+    dup lexer-error? [ 2dup go-to-error error>> ] when
     swap find-workspace debugger-popup ;
 
 : try-parse ( lines interactor -- quot/error/f )
@@ -144,7 +156,7 @@ M: interactor stream-read-partial
         drop parse-lines-interactive
     ] [
         2nip
-        dup parse-error? [
+        dup lexer-error? [
             dup error>> unexpected-eof? [ drop f ] when
         ] when
     ] recover ;
@@ -167,7 +179,7 @@ M: interactor stream-read-quot
     } cond ;
 
 M: interactor pref-dim*
-    [ line-height 4 * 0 swap 2array ] [ delegate pref-dim* ] bi
+    [ line-height 4 * 0 swap 2array ] [ call-next-method ] bi
     vmax ;
 
 interactor "interactor" f {
diff --git a/extra/ui/tools/interactor/summary.txt b/basis/ui/tools/interactor/summary.txt
similarity index 100%
rename from extra/ui/tools/interactor/summary.txt
rename to basis/ui/tools/interactor/summary.txt
diff --git a/extra/ui/tools/deploy/authors.txt b/basis/ui/tools/listener/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/ui/tools/deploy/authors.txt
rename to basis/ui/tools/listener/authors.txt
diff --git a/extra/ui/tools/listener/listener-tests.factor b/basis/ui/tools/listener/listener-tests.factor
similarity index 92%
rename from extra/ui/tools/listener/listener-tests.factor
rename to basis/ui/tools/listener/listener-tests.factor
index 2fae62a8fc..dff45251d1 100755
--- a/extra/ui/tools/listener/listener-tests.factor
+++ b/basis/ui/tools/listener/listener-tests.factor
@@ -5,7 +5,7 @@ ui.gadgets.panes vocabs words tools.test.ui slots.private
 threads arrays generic threads accessors listener ;
 IN: ui.tools.listener.tests
 
-[ f ] [ "word" source-editor command-map empty? ] unit-test
+[ f ] [ "word" source-editor command-map commands>> empty? ] unit-test
 
 [ ] [ <listener-gadget> [ ] with-grafted-gadget ] unit-test
 
@@ -30,7 +30,7 @@ IN: ui.tools.listener.tests
     ] unit-test
     
     [ t ] [
-        "i" get gadget-model doc-end
+        "i" get model>> doc-end
         "i" get editor-caret* =
     ] unit-test
 
diff --git a/extra/ui/tools/listener/listener.factor b/basis/ui/tools/listener/listener.factor
similarity index 74%
rename from extra/ui/tools/listener/listener.factor
rename to basis/ui/tools/listener/listener.factor
index 013bc57584..4c20abca87 100755
--- a/extra/ui/tools/listener/listener.factor
+++ b/basis/ui/tools/listener/listener.factor
@@ -10,11 +10,11 @@ prettyprint listener debugger threads boxes concurrency.flags
 math arrays generic accessors combinators assocs ;
 IN: ui.tools.listener
 
-TUPLE: listener-gadget input output stack ;
+TUPLE: listener-gadget < track input output stack ;
 
-: listener-output, ( -- )
-    <scrolling-pane> g-> set-listener-gadget-output
-    <scroller> "Output" <labelled-gadget> 1 track, ;
+: listener-output, ( listener -- listener )
+  <scrolling-pane> >>output
+  dup output>> <scroller> "Output" <labelled-gadget> 1 track-add ;
 
 : listener-streams ( listener -- input output )
     [ input>> ] [ output>> <pane-stream> ] bi ;
@@ -22,14 +22,16 @@ TUPLE: listener-gadget input output stack ;
 : <listener-input> ( listener -- gadget )
     output>> <pane-stream> <interactor> ;
 
-: listener-input, ( -- )
-    g <listener-input> g-> set-listener-gadget-input
-    <limited-scroller> { 0 100 } >>dim
-    "Input" <labelled-gadget> f track, ;
+: listener-input, ( listener -- listener )
+  dup <listener-input> >>input
+  dup input>>
+    { 0 100 } <limited-scroller>
+    "Input" <labelled-gadget>
+  f track-add ;
 
 : welcome. ( -- )
    "If this is your first time with Factor, please read the " print
-   "cookbook" ($link) "." print nl ;
+   "handbook" ($link) "." print nl ;
 
 M: listener-gadget focusable-child*
     input>> ;
@@ -62,7 +64,7 @@ M: listener-command invoke-command ( target command -- )
     command-quot call-listener ;
 
 M: listener-operation invoke-command ( target command -- )
-    [ operation-hook call ] keep operation-quot call-listener ;
+    [ hook>> call ] keep operation-quot call-listener ;
 
 : eval-listener ( string -- )
     get-workspace
@@ -70,11 +72,9 @@ M: listener-operation invoke-command ( target command -- )
     evaluate-input ;
 
 : listener-run-files ( seq -- )
-    dup empty? [
-        drop
-    ] [
+    [
         [ [ run-file ] each ] curry call-listener
-    ] if ;
+    ] unless-empty ;
 
 : com-end ( listener -- )
     input>> interactor-eof ;
@@ -90,7 +90,7 @@ M: listener-operation invoke-command ( target command -- )
 GENERIC: word-completion-string ( word -- string )
 
 M: word word-completion-string
-    word-name ;
+    name>> ;
 
 M: method-body word-completion-string
     "method-generic" word-prop word-completion-string ;
@@ -101,14 +101,14 @@ M: engine-word word-completion-string
     "engine-generic" word-prop word-completion-string ;
 
 : use-if-necessary ( word seq -- )
-    over word-vocabulary [
+    over vocabulary>> [
         2dup assoc-stack pick = [ 2drop ] [
-            >r word-vocabulary vocab-words r> push
+            >r vocabulary>> vocab-words r> push
         ] if
     ] [ 2drop ] if ;
 
 : insert-word ( word -- )
-    get-workspace workspace-listener input>>
+    get-workspace listener>> input>>
     [ >r word-completion-string r> user-input ]
     [ interactor-use use-if-necessary ]
     2bi ;
@@ -118,21 +118,21 @@ M: engine-word word-completion-string
     dup "\n" join pick add-interactor-history
     swap select-all ;
 
-TUPLE: stack-display ;
+TUPLE: stack-display < track ;
 
-: <stack-display> ( -- gadget )
-    stack-display new
-    g workspace-listener swap [
-        dup <toolbar> f track,
-        stack>> [ [ stack. ] curry try ]
-        t "Data stack" <labelled-pane> 1 track,
-    ] { 0 1 } build-track ;
+: <stack-display> ( workspace -- gadget )
+  listener>>
+  { 0 1 } stack-display new-track
+    over <toolbar> f track-add
+    swap
+      stack>> [ [ stack. ] curry try ] t "Data stack" <labelled-pane>
+    1 track-add ;
 
 M: stack-display tool-scroller
-    find-workspace workspace-listener tool-scroller ;
+    find-workspace listener>> tool-scroller ;
 
 : ui-listener-hook ( listener -- )
-    >r datastack r> listener-gadget-stack set-model ;
+    >r datastack r> stack>> set-model ;
 
 : ui-error-hook ( error listener -- )
     find-workspace debugger-popup ;
@@ -166,13 +166,15 @@ M: stack-display tool-scroller
     } cleave ;
 
 : init-listener ( listener -- )
-    f <model> swap set-listener-gadget-stack ;
+    f <model> swap (>>stack) ;
 
 : <listener-gadget> ( -- gadget )
-    listener-gadget new dup init-listener
-    [ listener-output, listener-input, ] { 0 1 } build-track ;
-
-: listener-help "ui-listener" help-window ;
+  { 0 1 } listener-gadget new-track
+    dup init-listener
+    listener-output,
+    listener-input, ;
+    
+: listener-help ( -- ) "ui-listener" help-window ;
 
 \ listener-help H{ { +nullary+ t } } define-command
 
@@ -184,12 +186,12 @@ listener-gadget "toolbar" f {
     { T{ key-down f f "F1" } listener-help }
 } define-command-map
 
-M: listener-gadget handle-gesture* ( gadget gesture delegate -- ? )
-    3dup drop swap find-workspace workspace-page handle-gesture
-    [ default-gesture-handler ] [ 3drop f ] if ;
+M: listener-gadget handle-gesture ( gesture gadget -- ? )
+    2dup find-workspace workspace-page handle-gesture
+    [ call-next-method ] [ 2drop f ] if ;
 
 M: listener-gadget graft*
-    [ delegate graft* ] [ restart-listener ] bi ;
+    [ call-next-method ] [ restart-listener ] bi ;
 
 M: listener-gadget ungraft*
-    [ com-end ] [ delegate ungraft* ] bi ;
+    [ com-end ] [ call-next-method ] bi ;
diff --git a/extra/ui/tools/listener/summary.txt b/basis/ui/tools/listener/summary.txt
similarity index 100%
rename from extra/ui/tools/listener/summary.txt
rename to basis/ui/tools/listener/summary.txt
diff --git a/extra/ui/tools/debugger/tags.txt b/basis/ui/tools/listener/tags.txt
similarity index 100%
rename from extra/ui/tools/debugger/tags.txt
rename to basis/ui/tools/listener/tags.txt
diff --git a/extra/ui/tools/inspector/authors.txt b/basis/ui/tools/operations/authors.txt
similarity index 100%
rename from extra/ui/tools/inspector/authors.txt
rename to basis/ui/tools/operations/authors.txt
diff --git a/extra/ui/tools/operations/operations.factor b/basis/ui/tools/operations/operations.factor
similarity index 82%
rename from extra/ui/tools/operations/operations.factor
rename to basis/ui/tools/operations/operations.factor
index 51a545db47..e3c3d46904 100755
--- a/extra/ui/tools/operations/operations.factor
+++ b/basis/ui/tools/operations/operations.factor
@@ -3,12 +3,12 @@
 USING: continuations definitions ui.tools.browser
 ui.tools.interactor ui.tools.listener ui.tools.profiler
 ui.tools.search ui.tools.traceback ui.tools.workspace generic
-help.topics inference inspector io.files io.styles kernel
-namespaces parser prettyprint quotations tools.annotations
-editors tools.profiler tools.test tools.time tools.walker
-ui.commands ui.gadgets.editors ui.gestures ui.operations
-ui.tools.deploy vocabs vocabs.loader words sequences
-tools.vocabs classes compiler.units ;
+help.topics stack-checker summary inspector io.files io.styles
+kernel namespaces parser prettyprint quotations
+tools.annotations editors tools.profiler tools.test tools.time
+tools.walker ui.commands ui.gadgets.editors ui.gestures
+ui.operations ui.tools.deploy vocabs vocabs.loader words
+sequences tools.vocabs classes compiler.units accessors ;
 IN: ui.tools.operations
 
 V{ } clone operations set-global
@@ -19,25 +19,25 @@ V{ } clone operations set-global
     { +listener+ t }
 } define-operation
 
-: com-prettyprint . ;
+: com-prettyprint ( obj -- ) . ;
 
 [ drop t ] \ com-prettyprint H{
     { +listener+ t }
 } define-operation
 
-: com-push ;
+: com-push ( obj -- obj ) ;
 
 [ drop t ] \ com-push H{
     { +listener+ t }
 } define-operation
 
-: com-unparse unparse listener-input ;
+: com-unparse ( obj -- ) unparse listener-input ;
 
 [ drop t ] \ com-unparse H{ } define-operation
 
 ! Input
 
-: com-input input-string listener-input ;
+: com-input ( obj -- ) string>> listener-input ;
 
 [ input? ] \ com-input H{
     { +primary+ t }
@@ -58,7 +58,7 @@ V{ } clone operations set-global
 } define-operation
 
 ! Pathnames
-: edit-file edit ;
+: edit-file ( pathname -- ) edit ;
 
 [ pathname? ] \ edit-file H{
     { +keyboard+ T{ key-down f { C+ } "E" } }
@@ -109,28 +109,29 @@ GENERIC: com-stack-effect ( obj -- )
 
 M: quotation com-stack-effect infer. ;
 
-M: word com-stack-effect word-def com-stack-effect ;
+M: word com-stack-effect def>> com-stack-effect ;
 
 [ word? ] \ com-stack-effect H{
     { +listener+ t }
 } define-operation
 
 ! Vocabularies
-: com-vocab-words get-workspace swap show-vocab-words ;
+: com-vocab-words ( vocab -- )
+    get-workspace swap show-vocab-words ;
 
 [ vocab? ] \ com-vocab-words H{
     { +secondary+ t }
     { +keyboard+ T{ key-down f { C+ } "B" } }
 } define-operation
 
-: com-enter-in vocab-name set-in ;
+: com-enter-in ( vocab -- ) vocab-name set-in ;
 
 [ vocab? ] \ com-enter-in H{
     { +keyboard+ T{ key-down f { C+ } "I" } }
     { +listener+ t }
 } define-operation
 
-: com-use-vocab vocab-name use+ ;
+: com-use-vocab ( vocab -- ) vocab-name use+ ;
 
 [ vocab-spec? ] \ com-use-vocab H{
     { +secondary+ t }
@@ -165,7 +166,8 @@ M: word com-stack-effect word-def com-stack-effect ;
     { +listener+ t }
 } define-operation
 
-: com-show-profile profiler-gadget call-tool ;
+: com-show-profile ( workspace -- )
+    profiler-gadget call-tool ;
 
 : com-profile ( quot -- ) profile f com-show-profile ;
 
diff --git a/extra/ui/tools/operations/summary.txt b/basis/ui/tools/operations/summary.txt
similarity index 100%
rename from extra/ui/tools/operations/summary.txt
rename to basis/ui/tools/operations/summary.txt
diff --git a/extra/ui/tools/interactor/authors.txt b/basis/ui/tools/profiler/authors.txt
similarity index 100%
rename from extra/ui/tools/interactor/authors.txt
rename to basis/ui/tools/profiler/authors.txt
diff --git a/extra/ui/tools/profiler/profiler.factor b/basis/ui/tools/profiler/profiler.factor
similarity index 71%
rename from extra/ui/tools/profiler/profiler.factor
rename to basis/ui/tools/profiler/profiler.factor
index 8b8d2c07a3..98717fc7bc 100755
--- a/extra/ui/tools/profiler/profiler.factor
+++ b/basis/ui/tools/profiler/profiler.factor
@@ -2,21 +2,19 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: ui.tools.workspace kernel quotations tools.profiler
 ui.commands ui.gadgets ui.gadgets.panes ui.gadgets.scrollers
-ui.gadgets.tracks ui.gestures ui.gadgets.buttons ;
+ui.gadgets.tracks ui.gestures ui.gadgets.buttons accessors ;
 IN: ui.tools.profiler
 
-TUPLE: profiler-gadget pane ;
+TUPLE: profiler-gadget < track pane ;
 
 : <profiler-gadget> ( -- gadget )
-    profiler-gadget new
-    [
-        toolbar,
-        <pane> g-> set-profiler-gadget-pane
-        <scroller> 1 track,
-    ] { 0 1 } build-track ;
-
+  { 0 1 } profiler-gadget new-track
+    dup <toolbar> f track-add
+    <pane> >>pane
+    dup pane>> <scroller> 1 track-add ;
+    
 : with-profiler-pane ( gadget quot -- )
-    >r profiler-gadget-pane r> with-pane ;
+    >r pane>> r> with-pane ;
 
 : com-full-profile ( gadget -- )
     [ profile. ] with-profiler-pane ;
@@ -27,7 +25,7 @@ TUPLE: profiler-gadget pane ;
 : com-method-profile ( gadget -- )
     [ method-profile. ] with-profiler-pane ;
 
-: profiler-help "ui-profiler" help-window ;
+: profiler-help ( -- ) "ui-profiler" help-window ;
 
 \ profiler-help H{ { +nullary+ t } } define-command
 
@@ -41,10 +39,10 @@ profiler-gadget "toolbar" f {
 GENERIC: profiler-presentation ( obj -- quot )
 
 M: usage-profile profiler-presentation
-    usage-profile-word [ usage-profile. ] curry ;
+    word>> [ usage-profile. ] curry ;
 
 M: vocab-profile profiler-presentation
-    vocab-profile-vocab [ vocab-profile. ] curry ;
+    vocab>> [ vocab-profile. ] curry ;
 
 M: f profiler-presentation
     drop [ vocabs-profile. ] ;
diff --git a/extra/ui/tools/profiler/summary.txt b/basis/ui/tools/profiler/summary.txt
similarity index 100%
rename from extra/ui/tools/profiler/summary.txt
rename to basis/ui/tools/profiler/summary.txt
diff --git a/extra/ui/tools/inspector/tags.txt b/basis/ui/tools/profiler/tags.txt
similarity index 100%
rename from extra/ui/tools/inspector/tags.txt
rename to basis/ui/tools/profiler/tags.txt
diff --git a/extra/ui/tools/listener/authors.txt b/basis/ui/tools/search/authors.txt
similarity index 100%
rename from extra/ui/tools/listener/authors.txt
rename to basis/ui/tools/search/authors.txt
diff --git a/extra/ui/tools/search/search-tests.factor b/basis/ui/tools/search/search-tests.factor
similarity index 85%
rename from extra/ui/tools/search/search-tests.factor
rename to basis/ui/tools/search/search-tests.factor
index 4a75ebfc96..dcfb7346b4 100755
--- a/extra/ui/tools/search/search-tests.factor
+++ b/basis/ui/tools/search/search-tests.factor
@@ -1,6 +1,6 @@
 USING: assocs ui.tools.search help.topics io.files io.styles
 kernel namespaces sequences source-files threads
-tools.test ui.gadgets ui.gestures vocabs
+tools.test ui.gadgets ui.gestures vocabs accessors
 vocabs.loader words tools.test.ui debugger ;
 IN: ui.tools.search.tests
 
@@ -10,12 +10,12 @@ IN: ui.tools.search.tests
     T{ key-down f { C+ } "x" } swap search-gesture
 ] unit-test
 
-: assert-non-empty empty? f assert= ;
+: assert-non-empty ( obj -- ) empty? f assert= ;
 
 : update-live-search ( search -- seq )
     dup [
         300 sleep
-        live-search-list control-value
+        list>> control-value
     ] with-grafted-gadget ;
 
 : test-live-search ( gadget quot -- ? )
@@ -29,7 +29,7 @@ IN: ui.tools.search.tests
 [ t ] [
     "" all-words t <definition-search>
     dup [
-        { "set-word-prop" } over live-search-field set-control-value
+        { "set-word-prop" } over field>> set-control-value
         300 sleep
         search-value \ set-word-prop eq?
     ] with-grafted-gadget
diff --git a/extra/ui/tools/search/search.factor b/basis/ui/tools/search/search.factor
similarity index 69%
rename from extra/ui/tools/search/search.factor
rename to basis/ui/tools/search/search.factor
index b18c0c1ad6..5237813fe0 100755
--- a/extra/ui/tools/search/search.factor
+++ b/basis/ui/tools/search/search.factor
@@ -1,40 +1,43 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: assocs ui.tools.interactor ui.tools.listener
+USING: accessors assocs ui.tools.interactor ui.tools.listener
 ui.tools.workspace help help.topics io.files io.styles kernel
-models namespaces prettyprint quotations sequences sorting
-source-files definitions strings tools.completion tools.crossref
-classes.tuple ui.commands ui.gadgets ui.gadgets.editors
-ui.gadgets.lists ui.gadgets.scrollers ui.gadgets.tracks
-ui.gestures ui.operations vocabs words vocabs.loader
-tools.vocabs unicode.case calendar ui ;
+models models.delay models.filter namespaces prettyprint
+quotations sequences sorting source-files definitions strings
+tools.completion tools.crossref classes.tuple ui.commands
+ui.gadgets ui.gadgets.editors ui.gadgets.lists
+ui.gadgets.scrollers ui.gadgets.tracks ui.gestures ui.operations
+vocabs words vocabs.loader tools.vocabs unicode.case calendar ui
+;
 IN: ui.tools.search
 
-TUPLE: live-search field list ;
+TUPLE: live-search < track field list ;
 
 : search-value ( live-search -- value )
-    live-search-list list-value ;
+    list>> list-value ;
 
 : search-gesture ( gesture live-search -- operation/f )
     search-value object-operations
     [ operation-gesture = ] with find nip ;
 
-M: live-search handle-gesture* ( gadget gesture delegate -- ? )
-    drop over search-gesture dup [
+M: live-search handle-gesture ( gesture live-search -- ? )
+    tuck search-gesture dup [
         over find-workspace hide-popup
         >r search-value r> invoke-command f
     ] [
         2drop t
     ] if ;
 
-: find-live-search [ [ live-search? ] is? ] find-parent ;
+: find-live-search ( gadget -- search )
+    [ live-search? ] find-parent ;
 
-: find-search-list find-live-search live-search-list ;
+: find-search-list ( gadget -- list )
+    find-live-search list>> ;
 
-TUPLE: search-field ;
+TUPLE: search-field < editor ;
 
 : <search-field> ( -- gadget )
-    <editor> search-field construct-editor ;
+    search-field new-editor ;
 
 search-field H{
     { T{ key-down f f "UP" } [ find-search-list select-previous ] }
@@ -44,12 +47,12 @@ search-field H{
     { T{ key-down f f "RET" } [ find-search-list invoke-value-action ] }
 } set-gestures
 
-: <search-model> ( producer -- model )
-    >r g live-search-field gadget-model
+: <search-model> ( live-search producer -- live-search filter )
+    >r dup field>> model>>                   ! live-search model :: producer
     ui-running? [ 1/5 seconds <delay> ] when
     [ "\n" join ] r> append <filter> ;
 
-: <search-list> ( seq limited? presenter -- gadget )
+: <search-list> ( live-search seq limited? presenter -- live-search list )
     >r
     [ limited-completions ] [ completions ] ? curry
     <search-model>
@@ -57,21 +60,22 @@ search-field H{
     swap <list> ;
 
 : <live-search> ( string seq limited? presenter -- gadget )
-    live-search new
-    [
-        <search-field> g-> set-live-search-field f track,
-        <search-list> g-> set-live-search-list
-        <scroller> 1 track,
-    ] { 0 1 } build-track
-    [ live-search-field set-editor-string ] keep
-    [ live-search-field end-of-document ] keep ;
+  { 0 1 } live-search new-track
+    <search-field> >>field
+    dup field>> f track-add
+    -roll <search-list> >>list
+    dup list>> <scroller> 1 track-add
 
-M: live-search focusable-child* live-search-field ;
+  swap                         
+    over field>> set-editor-string
+  dup field>> end-of-document ;
+
+M: live-search focusable-child* field>> ;
 
 M: live-search pref-dim* drop { 400 200 } ;
 
 : current-word ( workspace -- string )
-    workspace-listener listener-gadget-input selected-word ;
+    listener>> input>> selected-word ;
 
 : definition-candidates ( words -- candidates )
     [ dup synopsis >lower ] { } map>assoc sort-values ;
@@ -80,7 +84,7 @@ M: live-search pref-dim* drop { 400 200 } ;
     >r definition-candidates r> [ synopsis ] <live-search> ;
 
 : word-candidates ( words -- candidates )
-    [ dup word-name >lower ] { } map>assoc ;
+    [ dup name>> >lower ] { } map>assoc ;
 
 : <word-search> ( string words limited? -- gadget )
     >r word-candidates r> [ synopsis ] <live-search> ;
@@ -94,8 +98,8 @@ M: live-search pref-dim* drop { 400 200 } ;
     "Words in " rot vocab-name append show-titled-popup ;
 
 : show-word-usage ( workspace word -- )
-    "" over usage f <definition-search>
-    "Words and methods using " rot word-name append
+    "" over smart-usage f <definition-search>
+    "Words and methods using " rot name>> append
     show-titled-popup ;
 
 : help-candidates ( seq -- candidates )
@@ -114,7 +118,7 @@ M: live-search pref-dim* drop { 400 200 } ;
 
 : <source-file-search> ( string files -- gadget )
     source-file-candidates
-    f [ pathname-string ] <live-search> ;
+    f [ string>> ] <live-search> ;
 
 : all-source-files ( -- seq )
     source-files get keys natural-sort ;
@@ -142,13 +146,13 @@ M: live-search pref-dim* drop { 400 200 } ;
 
 : <history-search> ( string seq -- gadget )
     history-candidates
-    f [ input-string ] <live-search> ;
+    f [ string>> ] <live-search> ;
 
 : listener-history ( listener -- seq )
-    listener-gadget-input interactor-history <reversed> ;
+    input>> history>> <reversed> ;
 
 : com-history ( workspace -- )
-    "" over workspace-listener listener-history <history-search>
+    "" over listener>> listener-history <history-search>
     "History search" show-titled-popup ;
 
 workspace "toolbar" f {
diff --git a/extra/ui/tools/search/summary.txt b/basis/ui/tools/search/summary.txt
similarity index 100%
rename from extra/ui/tools/search/summary.txt
rename to basis/ui/tools/search/summary.txt
diff --git a/extra/ui/tools/summary.txt b/basis/ui/tools/summary.txt
similarity index 100%
rename from extra/ui/tools/summary.txt
rename to basis/ui/tools/summary.txt
diff --git a/extra/ui/tools/listener/tags.txt b/basis/ui/tools/tags.txt
similarity index 100%
rename from extra/ui/tools/listener/tags.txt
rename to basis/ui/tools/tags.txt
diff --git a/extra/ui/tools/tools-docs.factor b/basis/ui/tools/tools-docs.factor
similarity index 96%
rename from extra/ui/tools/tools-docs.factor
rename to basis/ui/tools/tools-docs.factor
index 4a8e1ddf4a..7f7b012a35 100755
--- a/extra/ui/tools/tools-docs.factor
+++ b/basis/ui/tools/tools-docs.factor
@@ -1,10 +1,10 @@
-USING: editors help.markup help.syntax inspector io listener
-parser prettyprint tools.profiler tools.walker ui.commands
-ui.gadgets.editors ui.gadgets.panes ui.gadgets.presentations
-ui.gadgets.slots ui.operations ui.tools.browser
-ui.tools.interactor ui.tools.inspector ui.tools.listener
-ui.tools.operations ui.tools.profiler ui.tools.walker
-ui.tools.workspace vocabs ;
+USING: editors help.markup help.syntax summary inspector io
+io.styles listener parser prettyprint tools.profiler
+tools.walker ui.commands ui.gadgets.editors ui.gadgets.panes
+ui.gadgets.presentations ui.gadgets.slots ui.operations
+ui.tools.browser ui.tools.interactor ui.tools.inspector
+ui.tools.listener ui.tools.operations ui.tools.profiler
+ui.tools.walker ui.tools.workspace vocabs ;
 IN: ui.tools
 
 ARTICLE: "ui-presentations" "Presentations in the UI"
diff --git a/extra/ui/tools/tools-tests.factor b/basis/ui/tools/tools-tests.factor
similarity index 73%
rename from extra/ui/tools/tools-tests.factor
rename to basis/ui/tools/tools-tests.factor
index 47b0d51705..b38dd52b6e 100755
--- a/extra/ui/tools/tools-tests.factor
+++ b/basis/ui/tools/tools-tests.factor
@@ -2,21 +2,19 @@ USING: ui.tools ui.tools.interactor ui.tools.listener
 ui.tools.search ui.tools.workspace kernel models namespaces
 sequences tools.test ui.gadgets ui.gadgets.buttons
 ui.gadgets.labelled ui.gadgets.presentations
-ui.gadgets.scrollers vocabs tools.test.ui ui ;
+ui.gadgets.scrollers vocabs tools.test.ui ui accessors ;
 IN: ui.tools.tests
 
+[ f ]
 [
-    [ f ] [
-        0 <model> <gadget> [ set-gadget-model ] keep gadget set
-        <workspace-tabs> gadget-children empty?
-    ] unit-test
-] with-scope
+  <gadget> 0 <model> >>model <workspace-tabs> children>> empty?
+] unit-test
 
 [ ] [ <workspace> "w" set ] unit-test
 [ ] [ "w" get com-scroll-up ] unit-test
 [ ] [ "w" get com-scroll-down ] unit-test
 [ t ] [
-    "w" get workspace-book gadget-children
+    "w" get book>> children>>
     [ tool-scroller ] map sift [ scroller? ] all?
 ] unit-test
 [ ] [ "w" get hide-popup ] unit-test
@@ -37,8 +35,8 @@ IN: ui.tools.tests
 
     [ ] [ notify-queued ] unit-test
 
-    [ ] [ "w" get workspace-popup closable-gadget-content
-    live-search-list gadget-child "p" set ] unit-test
+    [ ] [ "w" get popup>> content>>
+    list>> gadget-child "p" set ] unit-test
 
     [ t ] [ "p" get presentation? ] unit-test
 
@@ -49,7 +47,7 @@ IN: ui.tools.tests
     [ t ] [ "c" get button? ] unit-test
 
     [ ] [
-        "w" get workspace-listener listener-gadget-input
+        "w" get listener>> input>>
         3 handle-parse-error
     ] unit-test
 
diff --git a/extra/ui/tools/tools.factor b/basis/ui/tools/tools.factor
similarity index 66%
rename from extra/ui/tools/tools.factor
rename to basis/ui/tools/tools.factor
index 494e9d6737..21fa44b593 100755
--- a/extra/ui/tools/tools.factor
+++ b/basis/ui/tools/tools.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs debugger ui.tools.workspace
+USING: accessors arrays assocs debugger ui.tools.workspace
 ui.tools.operations ui.tools.traceback ui.tools.browser
 ui.tools.inspector ui.tools.listener ui.tools.profiler
 ui.tools.operations inspector io kernel math models namespaces
@@ -12,34 +12,39 @@ tools.test tools.vocabs ui.gadgets.buttons ui.gadgets.status-bar
 mirrors ;
 IN: ui.tools
 
-: <workspace-tabs> ( -- tabs )
-    g gadget-model
-    "tool-switching" workspace command-map
+: <workspace-tabs> ( workspace -- tabs )
+  model>>
+  "tool-switching" workspace command-map commands>>
     [ command-string ] { } assoc>map <enum> >alist
-    <toggle-buttons> ;
+  <toggle-buttons> ;
 
-: <workspace-book> ( -- gadget )
-    [
-        <stack-display> ,
-        <browser-gadget> ,
-        <inspector-gadget> ,
-        <profiler-gadget> ,
-    ] { } make g gadget-model <book> ;
+: <workspace-book> ( workspace -- gadget )
 
+  dup
+    <stack-display>
+    <browser-gadget>
+    <inspector-gadget>
+    <profiler-gadget>
+  4array
+
+  swap model>>
+
+  <book> ;
+  
 : <workspace> ( -- workspace )
-    0 <model> { 0 1 } <track> workspace construct-control [
-        [
-            <listener-gadget> g set-workspace-listener
-            <workspace-book> g set-workspace-book
-            <workspace-tabs> f track,
-            g workspace-book 1/5 track,
-            g workspace-listener 4/5 track,
-            toolbar,
-        ] with-gadget
-    ] keep ;
+  { 0 1 } workspace new-track
+
+    0 <model>            >>model
+    <listener-gadget>    >>listener
+    dup <workspace-book> >>book
+    
+    dup <workspace-tabs> f   track-add
+    dup book>>           1/5 track-add
+    dup listener>>       4/5 track-add
+    dup <toolbar>        f   track-add ;
 
 : resize-workspace ( workspace -- )
-    dup track-sizes over control-value zero? [
+    dup sizes>> over control-value zero? [
         1/5 1 pick set-nth
         4/5 2 rot set-nth
     ] [
@@ -49,19 +54,19 @@ IN: ui.tools
 
 M: workspace model-changed
     nip
-    dup workspace-listener listener-gadget-output scroll>bottom
+    dup listener>> output>> scroll>bottom
     dup resize-workspace
     request-focus ;
 
 [ workspace-window ] ui-hook set-global
 
-: com-listener stack-display select-tool ;
+: com-listener ( workspace -- ) stack-display select-tool ;
 
-: com-browser browser-gadget select-tool ;
+: com-browser ( workspace -- ) browser-gadget select-tool ;
 
-: com-inspector inspector-gadget select-tool ;
+: com-inspector ( workspace -- ) inspector-gadget select-tool ;
 
-: com-profiler profiler-gadget select-tool ;
+: com-profiler ( workspace -- ) profiler-gadget select-tool ;
 
 workspace "tool-switching" f {
     { T{ key-down f { A+ } "1" } com-listener }
diff --git a/extra/ui/tools/operations/authors.txt b/basis/ui/tools/traceback/authors.txt
similarity index 100%
rename from extra/ui/tools/operations/authors.txt
rename to basis/ui/tools/traceback/authors.txt
diff --git a/extra/ui/tools/traceback/summary.txt b/basis/ui/tools/traceback/summary.txt
similarity index 100%
rename from extra/ui/tools/traceback/summary.txt
rename to basis/ui/tools/traceback/summary.txt
diff --git a/basis/ui/tools/traceback/traceback.factor b/basis/ui/tools/traceback/traceback.factor
new file mode 100755
index 0000000000..92c5e09a88
--- /dev/null
+++ b/basis/ui/tools/traceback/traceback.factor
@@ -0,0 +1,53 @@
+! Copyright (C) 2006, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors continuations kernel models namespaces
+       prettyprint ui ui.commands ui.gadgets ui.gadgets.labelled assocs
+       ui.gadgets.tracks ui.gadgets.buttons ui.gadgets.panes
+       ui.gadgets.status-bar ui.gadgets.scrollers ui.gestures sequences
+       hashtables inspector ;
+
+IN: ui.tools.traceback
+
+: <callstack-display> ( model -- gadget )
+    [ [ call>> callstack. ] when* ]
+    t "Call stack" <labelled-pane> ;
+
+: <datastack-display> ( model -- gadget )
+    [ [ data>> stack. ] when* ]
+    t "Data stack" <labelled-pane> ;
+
+: <retainstack-display> ( model -- gadget )
+    [ [ retain>> stack. ] when* ]
+    t "Retain stack" <labelled-pane> ;
+
+TUPLE: traceback-gadget < track ;
+
+M: traceback-gadget pref-dim* drop { 550 600 } ;
+
+: <traceback-gadget> ( model -- gadget )
+  { 0 1 } traceback-gadget new-track
+    swap >>model
+
+    dup model>>
+      { 1 0 } <track>
+        over <datastack-display>   1/2 track-add
+        swap <retainstack-display> 1/2 track-add
+      1/3 track-add
+
+    dup model>> <callstack-display> 2/3 track-add
+
+    dup <toolbar> f track-add ;
+
+: <namestack-display> ( model -- gadget )
+    [ [ name>> namestack. ] when* ]
+    <pane-control> ;
+
+: <variables-gadget> ( model -- gadget )
+    <namestack-display> { 400 400 } <limited-scroller> ;
+
+: variables ( traceback -- )
+    model>> <variables-gadget>
+    "Dynamic variables" open-status-window ;
+
+: traceback-window ( continuation -- )
+    <model> <traceback-gadget> "Traceback" open-window ;
diff --git a/extra/ui/tools/profiler/authors.txt b/basis/ui/tools/walker/authors.txt
similarity index 100%
rename from extra/ui/tools/profiler/authors.txt
rename to basis/ui/tools/walker/authors.txt
diff --git a/extra/ui/tools/walker/summary.txt b/basis/ui/tools/walker/summary.txt
similarity index 100%
rename from extra/ui/tools/walker/summary.txt
rename to basis/ui/tools/walker/summary.txt
diff --git a/extra/ui/tools/profiler/tags.txt b/basis/ui/tools/walker/tags.txt
similarity index 100%
rename from extra/ui/tools/profiler/tags.txt
rename to basis/ui/tools/walker/tags.txt
diff --git a/extra/ui/tools/walker/walker-docs.factor b/basis/ui/tools/walker/walker-docs.factor
similarity index 100%
rename from extra/ui/tools/walker/walker-docs.factor
rename to basis/ui/tools/walker/walker-docs.factor
diff --git a/extra/ui/tools/walker/walker-tests.factor b/basis/ui/tools/walker/walker-tests.factor
similarity index 100%
rename from extra/ui/tools/walker/walker-tests.factor
rename to basis/ui/tools/walker/walker-tests.factor
diff --git a/extra/ui/tools/walker/walker.factor b/basis/ui/tools/walker/walker.factor
similarity index 63%
rename from extra/ui/tools/walker/walker.factor
rename to basis/ui/tools/walker/walker.factor
index edf4a5bb86..51091c576d 100755
--- a/extra/ui/tools/walker/walker.factor
+++ b/basis/ui/tools/walker/walker.factor
@@ -1,22 +1,24 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel concurrency.messaging inspector ui.tools.listener
-ui.tools.traceback ui.gadgets.buttons ui.gadgets.status-bar
-ui.gadgets.tracks ui.commands ui.gadgets models
-ui.tools.workspace ui.gestures ui.gadgets.labels ui threads
-namespaces tools.walker assocs combinators ;
+USING: accessors kernel concurrency.messaging inspector
+ui.tools.listener ui.tools.traceback ui.gadgets.buttons
+ui.gadgets.status-bar ui.gadgets.tracks ui.commands ui.gadgets
+models models.filter ui.tools.workspace ui.gestures
+ui.gadgets.labels ui threads namespaces tools.walker assocs
+combinators ;
 IN: ui.tools.walker
 
-TUPLE: walker-gadget
+TUPLE: walker-gadget < track
 status continuation thread
 traceback
 closing? ;
 
 : walker-command ( walker msg -- )
     swap
-    dup walker-gadget-thread thread-registered?
-    [ walker-gadget-thread send-synchronous drop ]
-    [ 2drop ] if ;
+    dup thread>> thread-registered?
+    [ thread>> send-synchronous drop ]
+    [ 2drop ]
+    if ;
 
 : com-step ( walker -- ) step walker-command ;
 
@@ -31,17 +33,15 @@ closing? ;
 : com-abandon ( walker -- ) abandon walker-command ;
 
 M: walker-gadget ungraft*
-    [ t swap set-walker-gadget-closing? ]
-    [ com-continue ]
-    [ delegate ungraft* ] tri ;
+    [ t >>closing? drop ] [ com-continue ] [ call-next-method ] tri ;
 
 M: walker-gadget focusable-child*
-    walker-gadget-traceback ;
+    traceback>> ;
 
 : walker-state-string ( status thread -- string )
     [
         "Thread: " %
-        dup thread-name %
+        dup name>> %
         " (" %
         swap {
             { +stopped+ "Stopped" }
@@ -56,13 +56,17 @@ M: walker-gadget focusable-child*
     [ walker-state-string ] curry <filter> <label-control> ;
 
 : <walker-gadget> ( status continuation thread -- gadget )
-    over <traceback-gadget> f walker-gadget boa [
-        toolbar,
-        g walker-gadget-status self <thread-status> f track,
-        g walker-gadget-traceback 1 track,
-    ] { 0 1 } build-track ;
+    { 0 1 } walker-gadget new-track
+        swap >>thread
+        swap >>continuation
+        swap >>status
+        dup continuation>> <traceback-gadget> >>traceback
 
-: walker-help "ui-walker" help-window ;
+        dup <toolbar>                     f track-add
+        dup status>> self <thread-status> f track-add
+        dup traceback>>                   1 track-add ;
+    
+: walker-help ( -- ) "ui-walker" help-window ;
 
 \ walker-help H{ { +nullary+ t } } define-command
 
@@ -80,15 +84,15 @@ walker-gadget "toolbar" f {
 : walker-for-thread? ( thread gadget -- ? )
     {
         { [ dup walker-gadget? not ] [ 2drop f ] }
-        { [ dup walker-gadget-closing? ] [ 2drop f ] }
-        [ walker-gadget-thread eq? ]
+        { [ dup closing?>> ] [ 2drop f ] }
+        [ thread>> eq? ]
     } cond ;
 
 : find-walker-window ( thread -- world/f )
     [ swap walker-for-thread? ] curry find-window ;
 
 : walker-window ( status continuation thread -- )
-    [ <walker-gadget> ] [ thread-name ] bi open-status-window ;
+    [ <walker-gadget> ] [ name>> ] bi open-status-window ;
 
 [
     dup find-walker-window dup
diff --git a/extra/ui/tools/search/authors.txt b/basis/ui/tools/workspace/authors.txt
similarity index 100%
rename from extra/ui/tools/search/authors.txt
rename to basis/ui/tools/workspace/authors.txt
diff --git a/extra/ui/tools/workspace/summary.txt b/basis/ui/tools/workspace/summary.txt
similarity index 100%
rename from extra/ui/tools/workspace/summary.txt
rename to basis/ui/tools/workspace/summary.txt
diff --git a/extra/ui/tools/tags.txt b/basis/ui/tools/workspace/tags.txt
similarity index 100%
rename from extra/ui/tools/tags.txt
rename to basis/ui/tools/workspace/tags.txt
diff --git a/extra/ui/tools/workspace/workspace-tests.factor b/basis/ui/tools/workspace/workspace-tests.factor
similarity index 100%
rename from extra/ui/tools/workspace/workspace-tests.factor
rename to basis/ui/tools/workspace/workspace-tests.factor
diff --git a/extra/ui/tools/workspace/workspace.factor b/basis/ui/tools/workspace/workspace.factor
similarity index 68%
rename from extra/ui/tools/workspace/workspace.factor
rename to basis/ui/tools/workspace/workspace.factor
index 5a334ab56b..ab6b3fe1cf 100755
--- a/extra/ui/tools/workspace/workspace.factor
+++ b/basis/ui/tools/workspace/workspace.factor
@@ -1,24 +1,23 @@
 ! Copyright (C) 2006, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: classes continuations help help.topics kernel models
-sequences ui ui.backend ui.tools.debugger ui.gadgets
-ui.gadgets.books ui.gadgets.buttons ui.gadgets.labelled
-ui.gadgets.panes ui.gadgets.scrollers ui.gadgets.tracks
-ui.gadgets.worlds ui.gadgets.presentations ui.gadgets.status-bar
-ui.commands ui.gestures assocs arrays namespaces accessors ;
+       sequences ui ui.backend ui.tools.debugger ui.gadgets
+       ui.gadgets.books ui.gadgets.buttons ui.gadgets.labelled
+       ui.gadgets.panes ui.gadgets.scrollers ui.gadgets.tracks
+       ui.gadgets.worlds ui.gadgets.presentations ui.gadgets.status-bar
+       ui.commands ui.gestures assocs arrays namespaces accessors ;
+
 IN: ui.tools.workspace
 
-TUPLE: workspace book listener popup ;
+TUPLE: workspace < track book listener popup ;
 
-: find-workspace [ workspace? ] find-parent ;
+: find-workspace ( gadget -- workspace ) [ workspace? ] find-parent ;
 
 SYMBOL: workspace-window-hook
 
-: workspace-window* ( -- workspace )
-    workspace-window-hook get call ;
+: workspace-window* ( -- workspace ) workspace-window-hook get call ;
 
-: workspace-window ( -- )
-    workspace-window* drop ;
+: workspace-window ( -- ) workspace-window* drop ;
 
 GENERIC: call-tool* ( arg tool -- )
 
@@ -27,10 +26,10 @@ GENERIC: tool-scroller ( tool -- scroller )
 M: gadget tool-scroller drop f ;
 
 : find-tool ( class workspace -- index tool )
-    workspace-book gadget-children [ class eq? ] with find ;
+  book>> children>> [ class eq? ] with find ;
 
 : show-tool ( class workspace -- tool )
-    [ find-tool swap ] keep workspace-book gadget-model
+    [ find-tool swap ] keep book>> model>>
     set-model ;
 
 : select-tool ( workspace class -- ) swap show-tool drop ;
@@ -51,20 +50,20 @@ M: gadget tool-scroller drop f ;
 : help-window ( topic -- )
     [
         <pane> [ [ help ] with-pane ] keep
-        <limited-scroller> { 550 700 } >>dim
+        { 550 700 } <limited-scroller>
     ] keep
     article-title open-window ;
 
 : hide-popup ( workspace -- )
-    dup workspace-popup over track-remove
-    f over set-workspace-popup
-    request-focus ;
+  dup popup>> track-remove
+  f >>popup
+  request-focus ;
 
 : show-popup ( gadget workspace -- )
-    dup hide-popup
-    2dup set-workspace-popup
-    dupd f track-add
-    request-focus ;
+  dup hide-popup
+  over >>popup
+  over f track-add drop
+  request-focus ;
 
 : show-titled-popup ( workspace gadget title -- )
     [ find-workspace hide-popup ] <closable-gadget>
@@ -82,10 +81,10 @@ SYMBOL: workspace-dim
 M: workspace pref-dim* drop workspace-dim get ;
 
 M: workspace focusable-child*
-    dup workspace-popup [ ] [ workspace-listener ] ?if ;
+    dup popup>> [ ] [ listener>> ] ?if ;
 
 : workspace-page ( workspace -- gadget )
-    workspace-book current-page ;
+    book>> current-page ;
 
 M: workspace tool-scroller ( workspace -- scroller )
     workspace-page tool-scroller ;
diff --git a/extra/ui/tools/traceback/authors.txt b/basis/ui/traverse/authors.txt
similarity index 100%
rename from extra/ui/tools/traceback/authors.txt
rename to basis/ui/traverse/authors.txt
diff --git a/extra/ui/traverse/summary.txt b/basis/ui/traverse/summary.txt
similarity index 100%
rename from extra/ui/traverse/summary.txt
rename to basis/ui/traverse/summary.txt
diff --git a/extra/ui/traverse/traverse-tests.factor b/basis/ui/traverse/traverse-tests.factor
similarity index 89%
rename from extra/ui/traverse/traverse-tests.factor
rename to basis/ui/traverse/traverse-tests.factor
index 5e6ac4125b..8486aaff21 100755
--- a/extra/ui/traverse/traverse-tests.factor
+++ b/basis/ui/traverse/traverse-tests.factor
@@ -1,14 +1,14 @@
-IN: ui.traverse.tests
-USING: ui.gadgets ui.gadgets.labels namespaces sequences kernel
+USING: accessors ui.gadgets ui.gadgets.labels namespaces sequences kernel
 math arrays tools.test io ui.gadgets.panes ui.traverse
 definitions compiler.units ;
+IN: ui.traverse.tests
 
-M: array gadget-children ;
+M: array children>> ;
 
 GENERIC: (flatten-tree) ( node -- )
 
 M: node (flatten-tree)
-    node-children [ (flatten-tree) ] each ;
+    children>> [ (flatten-tree) ] each ;
 
 M: object (flatten-tree) , ;
 
@@ -62,4 +62,4 @@ M: object (flatten-tree) , ;
     { 0 1 } { 2 0 1 } { { "a" "b" "c" "d" } { "e" "f" "g" } { { "h" "i" } "j" } } gadgets-in-range
 ] unit-test
 
-[ { array gadget-children } forget ] with-compilation-unit
+[ { array children>> } forget ] with-compilation-unit
diff --git a/extra/ui/traverse/traverse.factor b/basis/ui/traverse/traverse.factor
similarity index 85%
rename from extra/ui/traverse/traverse.factor
rename to basis/ui/traverse/traverse.factor
index 85b2266159..440f6487c2 100644
--- a/extra/ui/traverse/traverse.factor
+++ b/basis/ui/traverse/traverse.factor
@@ -1,13 +1,13 @@
 ! Copyright (C) 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces sequences kernel math arrays io ui.gadgets
+USING: accessors namespaces sequences kernel math arrays io ui.gadgets
 generic combinators ;
 IN: ui.traverse
 
 TUPLE: node value children ;
 
 : traverse-step ( path gadget -- path' gadget' )
-    >r unclip r> gadget-children ?nth ;
+    >r unclip r> children>> ?nth ;
 
 : make-node ( quot -- ) { } make node boa , ; inline
 
@@ -19,7 +19,7 @@ TUPLE: node value children ;
             nip ,
         ] [
             [
-                2dup gadget-children swap first head-slice %
+                2dup children>> swap first head-slice %
                 tuck traverse-step traverse-to-path
             ] make-node
         ] if
@@ -34,7 +34,7 @@ TUPLE: node value children ;
         ] [
             [
                 2dup traverse-step traverse-from-path
-                tuck gadget-children swap first 1+ tail-slice %
+                tuck children>> swap first 1+ tail-slice %
             ] make-node
         ] if
     ] if ;
@@ -43,7 +43,7 @@ TUPLE: node value children ;
     traverse-step traverse-from-path ;
 
 : (traverse-middle) ( frompath topath gadget -- )
-    >r >r first 1+ r> first r> gadget-children <slice> % ;
+    >r >r first 1+ r> first r> children>> <slice> % ;
 
 : traverse-post ( topath gadget -- )
     traverse-step traverse-to-path ;
@@ -77,7 +77,7 @@ DEFER: (gadget-subtree)
     [ (gadget-subtree) ] { } make ;
 
 M: node gadget-text*
-    dup node-children swap node-value gadget-seq-text ;
+    dup children>> swap value>> gadget-seq-text ;
 
 : gadget-text-range ( frompath topath gadget -- str )
     gadget-subtree gadget-text ;
diff --git a/extra/ui/ui-docs.factor b/basis/ui/ui-docs.factor
similarity index 67%
rename from extra/ui/ui-docs.factor
rename to basis/ui/ui-docs.factor
index 1b1e9d99f3..e086b7ebae 100755
--- a/extra/ui/ui-docs.factor
+++ b/basis/ui/ui-docs.factor
@@ -1,8 +1,6 @@
-USING: ui.gadgets.worlds ui.gadgets ui.backend help.markup
-help.syntax strings quotations debugger io.styles namespaces
-ui.gadgets.tracks ui.gadgets.packs ui.gadgets.grids
-ui.gadgets.frames ui.gadgets.books ui.gadgets.panes
-ui.gadgets.incremental ;
+USING: help.markup help.syntax strings quotations debugger
+io.styles namespaces ui.backend ui.gadgets ui.gadgets.worlds
+ui.gadgets.tracks ui.gadgets.packs ui.gadgets.grids math.geometry.rect ;
 IN: ui
 
 HELP: windows
@@ -76,21 +74,21 @@ ARTICLE: "ui-glossary" "UI glossary"
             }
         }
     }
-    { "gadget" { "a graphical element which responds to user input. Gadgets are tuples which (directly or indirectly) delegate to " { $link gadget } " instances." } }
+    { "gadget" { "a graphical element which responds to user input. Gadgets are tuples which (directly or indirectly) inherit from " { $link gadget } "." } }
     { "label specifier" { "a string, " { $link f } " or a gadget. See " { $link "ui.gadgets.buttons" } } }
     { "orientation specifier" { "one of " { $snippet "{ 0 1 }" } " or " { $snippet "{ 1 0 }" } ", with the former denoting vertical orientation and the latter denoting horizontal. Using a vector instead of symbolic constants allows these values to be directly useful in co-ordinate calculations" } }
     { "point" "a pair of integers denoting a pixel location on screen" }
 } ;
 
 ARTICLE: "building-ui" "Building user interfaces"
-"A gadget is a graphical element which responds to user input. Gadgets are implemented as tuples which (directly or indirectly) delegate to instances of " { $link gadget } ", which in turn delegates to " { $link rect } "."
+"A gadget is a graphical element which responds to user input. Gadgets are implemented as tuples which (directly or indirectly) inherit from " { $link gadget } ", which in turn inherits from " { $link rect } "."
 { $subsection gadget }
-"Gadgets are arranged in a hierarchy, and all visible gadgets except for instances of " { $link world } " are contained in a parent gadget, stored in the " { $link gadget-parent } " slot."
+"Gadgets are arranged in a hierarchy, and all visible gadgets except for instances of " { $link world } " are contained in a parent gadget, stored in the " { $snippet "parent" } " slot."
 { $subsection "ui-geometry" }
 { $subsection "ui-layouts" }
 { $subsection "gadgets" }
-{ $subsection "models" }
-{ $subsection "ui-windows" } ;
+{ $subsection "ui-windows" }
+{ $see-also "models" } ;
 
 ARTICLE: "gadgets" "Pre-made UI gadgets"
 { $subsection "ui.gadgets.labels" }
@@ -106,7 +104,7 @@ ARTICLE: "gadgets" "Pre-made UI gadgets"
 { $subsection "ui.gadgets.lists" } ;
 
 ARTICLE: "ui-geometry" "Gadget geometry"
-"Instances of " { $link gadget } " (and thus all gadgets) delegate to rectangles which specify the gadget's bounding box:"
+"The " { $link gadget } " class inherits from the " { $link rect } " class, and thus all gadgets have a bounding box:"
 { $subsection rect }
 "Rectangles can be taken apart:"
 { $subsection rect-loc }
@@ -121,8 +119,10 @@ ARTICLE: "ui-geometry" "Gadget geometry"
 { $subsection offset-rect }
 { $subsection rect-intersect }
 { $subsection intersects? }
-"A gadget's bounding box is always relative to its parent:"
-{ $subsection gadget-parent }
+
+! "A gadget's bounding box is always relative to its parent. "
+! { $subsection gadget-parent }
+
 "Word for converting from a child gadget's co-ordinate system to a parent's:"
 { $subsection relative-loc }
 { $subsection screen-loc }
@@ -172,7 +172,7 @@ $nl
 ARTICLE: "ui-backend-windows" "UI backend window management"
 "The high-level " { $link open-window } " word eventually calls a low-level word which you must implement:"
 { $subsection open-world-window }
-"This word should create a native window, store some kind of handle in the " { $link world-handle } " slot, then call two words:"
+"This word should create a native window, store some kind of handle in the " { $snippet "handle" } " slot, then call two words:"
 { $subsection register-window }
 "The following words must also be implemented:"
 { $subsection set-title }
@@ -213,8 +213,8 @@ $nl
 { $subsection unparent }
 { $subsection add-gadgets }
 { $subsection clear-gadget }
-"Working with gadget children:"
-{ $subsection gadget-children }
+"The children of a gadget are available via the "
+{ $snippet "children" } " slot. " "Working with gadget children:"
 { $subsection gadget-child }
 { $subsection nth-gadget }
 { $subsection each-child }
@@ -234,114 +234,15 @@ ARTICLE: "ui-layout-combinators" "Creating layouts using combinators"
 "The " { $link make } " combinator provides a convenient way of constructing sequences by keeping the intermediate sequence off the stack until construction is done. The " { $link , } " and " { $link % } " words operate on this implicit sequence, reducing stack noise."
 $nl
 "Similar tools exist for constructing complex gadget hierarchies. Different words are used for different types of gadgets; see " { $link "ui-pack-layout" } ", " { $link "ui-track-layout" } " and " { $link "ui-frame-layout" } " for specifics. This section documents their common factors."
-$nl
-"Gadget construction combinators whose names are prefixed with " { $snippet "make-" } " construct new gadgets and push them on the stack. The primitive combinator used to define all combinators of this form:"
-{ $subsection make-gadget }
-"Words such as " { $link gadget, } " and " { $link track, } " access the gadget through the " { $link make-gadget } " variable."
-$nl
-"Combinators whose names are prefixed with " { $snippet "build-" } " take a tuple as input, and construct a new gadget which the tuple will delegate to. The primitive combinator used to define all combinators of this form:"
-{ $subsection build-gadget }
-"In this case, the new gadget is stored in both the " { $link make-gadget } " and " { $link gadget } " variables."
-$nl
-"A combinator which stores a gadget in the " { $link gadget } " variable; it is used by " { $link build-gadget } ":"
-{ $subsection with-gadget }
-"The following words access the " { $link gadget } " variable; they can be used from " { $link with-gadget } " and " { $link build-gadget } " to store child gadgets in tuple slots:"
-{ $subsection g }
-{ $subsection g-> } ;
-
-ARTICLE: "ui-pack-layout" "Pack layouts"
-"Pack gadgets layout their children along a single axis."
-{ $subsection pack }
-"Creating empty packs:"
-{ $subsection <pack> }
-{ $subsection <pile> }
-{ $subsection <shelf> }
-"Creating packs using a combinator:"
-{ $subsection make-pile }
-{ $subsection make-filled-pile }
-{ $subsection make-shelf }
-{ $subsection gadget, }
-"For more control, custom layouts can reuse portions of pack layout logic:"
-{ $subsection pack-pref-dim }
-{ $subsection pack-layout } ;
-
-ARTICLE: "ui-track-layout" "Track layouts"
-"Track gadgets are like " { $link "ui-pack-layout" } " except each child is resized to a fixed multiple of the track's dimension."
-{ $subsection track }
-"Creating empty tracks:"
-{ $subsection <track> }
-"Adding children:"
-{ $subsection track-add }
-"Creating new tracks using a combinator:"
-{ $subsection make-track }
-{ $subsection build-track }
-{ $subsection track, }
-"New gadgets can be defined which delegate to tracks for layout:"
-{ $subsection build-track } ;
-
-ARTICLE: "ui-grid-layout" "Grid layouts"
-"Grid gadgets layout their children in a rectangular grid."
-{ $subsection grid }
-"Creating grids from a fixed set of gadgets:"
-{ $subsection <grid> }
-"Managing chidren:"
-{ $subsection grid-add }
-{ $subsection grid-remove }
-{ $subsection grid-child } ;
-
-ARTICLE: "ui-frame-layout" "Frame layouts"
-"Frames resemble " { $link "ui-grid-layout" } " except the size of grid is fixed at 3x3, and the center gadget fills up any available space. Because frames delegate to grids, grid layout words can be used to add and remove children."
-{ $subsection frame }
-"Creating empty frames:"
-{ $subsection <frame> }
-"Creating new frames using a combinator:"
-{ $subsection make-frame }
-{ $subsection build-frame }
-{ $subsection frame, }
-"New gadgets can be defined which delegate to frames for layout:"
-{ $subsection build-frame }
-"A set of mnemonic words for the positions on a frame's 3x3 grid; these words push values which may be passed to " { $link grid-add } " or " { $link frame, } ":"
-{ $subsection @center }
-{ $subsection @left }
-{ $subsection @right }
-{ $subsection @top }
-{ $subsection @bottom }
-{ $subsection @top-left }
-{ $subsection @top-right }
-{ $subsection @bottom-left }
-{ $subsection @bottom-right } ;
-
-ARTICLE: "ui-book-layout" "Book layouts"
-"Books can contain any number of children, and display one child at a time."
-{ $subsection book }
-{ $subsection <book> } ;
+;
 
 ARTICLE: "ui-null-layout" "Manual layouts"
-"When automatic layout is not appropriate, gadgets can be added to a parent with no layout policy, and then positioned and sized manually:"
-{ $subsection set-rect-loc }
-{ $subsection set-gadget-dim } ;
-
-ARTICLE: "ui-incremental-layout" "Incremental layouts"
-"Incremental layout gadgets are like " { $link "ui-pack-layout" } " except the relayout operation after adding a new child can be done in constant time."
-$nl
-"With all layouts, relayout requests from consecutive additions and removals are of children are coalesced and result in only one relayout operation being performed, however the run time of the relayout operation itself depends on the number of children."
-$nl
-"Incremental layout is used by " { $link pane } " gadgets to ensure that new lines of output does not take longer to display when the pane already has previous output."
-$nl
-"Incremental layouts are not a general replacement for " { $link "ui-pack-layout" } " and there are some limitations to be aware of."
-{ $subsection incremental }
-{ $subsection <incremental> }
-"Children are added and removed with a special set of words which perform necessary relayout immediately:"
-{ $subsection add-incremental }
-{ $subsection clear-incremental }
-"Calling " { $link unparent } " to remove a child of an incremental layout is permitted, however the relayout following the removal will not be performed in constant time, because all gadgets following the removed gadget need to be moved." ;
+"When automatic layout is not appropriate, gadgets can be added to a parent with no layout policy, and then positioned and sized manually by setting the " { $snippet "loc" } " field." ;
 
 ARTICLE: "ui-layout-impl" "Implementing layout gadgets"
 "The relayout process proceeds top-down, with parents laying out their children, which in turn lay out their children. Custom layout policy is implemented by defining a method on a generic word:"
 { $subsection layout* }
-"When a " { $link layout* } " method is called, the size and location of the gadget has already been determined by its parent, and the method's job is to lay out the gadget's children. Children can be positioned and resized with a pair of words:"
-{ $subsection set-rect-loc }
-{ $subsection set-layout-dim }
+"When a " { $link layout* } " method is called, the size and location of the gadget has already been determined by its parent, and the method's job is to lay out the gadget's children. Children can be positioned and resized by setting a pair of slots, " { $snippet "loc" } " and " { $snippet "dim" } "." $nl
 "Some assorted utility words which are useful for implementing layout logic:"
 { $subsection pref-dim }
 { $subsection pref-dims }
@@ -349,7 +250,7 @@ ARTICLE: "ui-layout-impl" "Implementing layout gadgets"
 { $subsection max-dim }
 { $subsection dim-sum }
 { $warning
-    "When implementing the " { $link layout* } " generic word for a gadget which intends to delegate to another layout, the " { $link children-on } " word might have to be re-implemented as well."
+    "When implementing the " { $link layout* } " generic word for a gadget which inherits from another layout, the " { $link children-on } " word might have to be re-implemented as well."
     $nl
     "For example, suppose you want a " { $link grid } " layout which also displays a popup gadget on top. The implementation of " { $link children-on } " for the " { $link grid } " class determines which children of the grid are visible at one time, and this will never include your popup, so it will not be rendered, nor will it respond to gestures. The solution is to re-implement " { $link children-on } " on your class."
 } ;
@@ -359,10 +260,8 @@ ARTICLE: "new-gadgets" "Implementing new gadgets"
 $nl
 "Bare gadgets can be constructed directly, which is useful if all you need is a custom appearance with no further behavior (see " { $link "ui-pen-protocol" } "):"
 { $subsection <gadget> }
-"You can construct a new tuple which delegates to a bare gadget:"
-{ $subsection construct-gadget }
-"You can also delegate a tuple to an existing gadget:"
-{ $subsection set-gadget-delegate }
+"New gadgets are defined as subclasses of an existing gadget type, perhaps even " { $link gadget } " itself. A parametrized constructor should be used to construct subclasses:"
+{ $subsection new-gadget }
 "Further topics:"
 { $subsection "ui-gestures" }
 { $subsection "ui-paint" }
diff --git a/extra/ui/ui.factor b/basis/ui/ui.factor
similarity index 87%
rename from extra/ui/ui.factor
rename to basis/ui/ui.factor
index 7aca45a210..22abfc8f21 100755
--- a/extra/ui/ui.factor
+++ b/basis/ui/ui.factor
@@ -1,10 +1,10 @@
 ! Copyright (C) 2006, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays assocs io kernel math models namespaces
-prettyprint dlists sequences threads sequences words
+prettyprint dlists deques sequences threads sequences words
 debugger ui.gadgets ui.gadgets.worlds ui.gadgets.tracks
 ui.gestures ui.backend ui.render continuations init combinators
-hashtables concurrency.flags sets ;
+hashtables concurrency.flags sets accessors ;
 IN: ui
 
 ! Assoc mapping aliens to gadgets
@@ -15,7 +15,7 @@ SYMBOL: stop-after-last-window?
 : event-loop? ( -- ? )
     {
         { [ stop-after-last-window? get not ] [ t ] }
-        { [ graft-queue dlist-empty? not ] [ t ] }
+        { [ graft-queue deque-empty? not ] [ t ] }
         { [ windows get-global empty? not ] [ t ] }
         [ f ]
     } cond ;
@@ -51,31 +51,31 @@ SYMBOL: stop-after-last-window?
     T{ gain-focus } swap each-gesture ;
 
 : focus-world ( world -- )
-    t over set-world-focused?
+    t over (>>focused?)
     dup raised-window
     focus-path f focus-gestures ;
 
 : unfocus-world ( world -- )
-    f over set-world-focused?
+    f over (>>focused?)
     focus-path f swap focus-gestures ;
 
 M: world graft*
     dup (open-window)
-    dup world-title over set-title
+    dup title>> over set-title
     request-focus ;
 
 : reset-world ( world -- )
     #! This is used when a window is being closed, but also
     #! when restoring saved worlds on image startup.
-    dup world-fonts clear-assoc
+    dup fonts>> clear-assoc
     dup unfocus-world
-    f swap set-world-handle ;
+    f swap (>>handle) ;
 
 M: world ungraft*
     dup free-fonts
     dup hand-clicked close-global
     dup hand-gadget close-global
-    dup world-handle (close-window)
+    dup handle>> (close-window)
     reset-world ;
 
 : find-window ( quot -- world )
@@ -90,21 +90,21 @@ SYMBOL: ui-hook
     V{ } clone windows set-global ;
 
 : restore-gadget-later ( gadget -- )
-    dup gadget-graft-state {
+    dup graft-state>> {
         { { f f } [ ] }
         { { f t } [ ] }
         { { t t } [
-            { f f } over set-gadget-graft-state
+            { f f } over (>>graft-state)
         ] }
         { { t f } [
             dup unqueue-graft
-            { f f } over set-gadget-graft-state
+            { f f } over (>>graft-state)
         ] }
     } case graft-later ;
 
 : restore-gadget ( gadget -- )
     dup restore-gadget-later
-    gadget-children [ restore-gadget ] each ;
+    children>> [ restore-gadget ] each ;
 
 : restore-world ( world -- )
     dup reset-world restore-gadget ;
@@ -126,22 +126,22 @@ SYMBOL: ui-hook
         in-layout? on
         layout-queue [
             dup layout find-world [ , ] when*
-        ] dlist-slurp
+        ] slurp-deque
     ] { } make prune ;
 
 : redraw-worlds ( seq -- )
     [ dup update-hand draw-world ] each ;
 
 : notify ( gadget -- )
-    dup gadget-graft-state
+    dup graft-state>>
     dup first { f f } { t t } ?
-    pick set-gadget-graft-state {
+    pick (>>graft-state) {
         { { f t } [ dup activate-control graft* ] }
         { { t f } [ dup deactivate-control ungraft* ] }
     } case ;
 
 : notify-queued ( -- )
-    graft-queue [ notify ] dlist-slurp ;
+    graft-queue [ notify ] slurp-deque ;
 
 : update-ui ( -- )
     [ notify-queued layout-queued redraw-worlds ] assert-depth ;
@@ -172,10 +172,9 @@ SYMBOL: ui-thread
     "UI update" spawn drop ;
 
 : open-world-window ( world -- )
-    dup pref-dim over set-gadget-dim dup relayout graft ;
+    dup pref-dim over (>>dim) dup relayout graft ;
 
 : open-window ( gadget title -- )
-    >r [ 1 track, ] { 0 1 } make-track r>
     f <world> open-world-window ;
 
 : set-fullscreen? ( ? gadget -- )
diff --git a/extra/io/sockets/headers/bsd/authors.txt b/basis/ui/windows/authors.txt
similarity index 100%
rename from extra/io/sockets/headers/bsd/authors.txt
rename to basis/ui/windows/authors.txt
diff --git a/basis/ui/windows/tags.txt b/basis/ui/windows/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/ui/windows/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/windows/windows.factor b/basis/ui/windows/windows.factor
similarity index 92%
rename from extra/ui/windows/windows.factor
rename to basis/ui/windows/windows.factor
index 5e17d02542..f6481225ae 100755
--- a/extra/ui/windows/windows.factor
+++ b/basis/ui/windows/windows.factor
@@ -3,25 +3,28 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types alien.strings arrays assocs ui
 ui.gadgets ui.backend ui.clipboards ui.gadgets.worlds
-ui.gestures io kernel math math.vectors namespaces prettyprint
+ui.gestures io kernel math math.vectors namespaces
 sequences strings vectors words windows.kernel32 windows.gdi32
 windows.user32 windows.opengl32 windows.messages windows.types
 windows.nt windows threads libc combinators continuations
 command-line shuffle opengl ui.render unicode.case ascii
-math.bitfields locals symbols accessors ;
+math.bitwise locals symbols accessors math.geometry.rect ;
 IN: ui.windows
 
 SINGLETON: windows-ui-backend
 
-: crlf>lf CHAR: \r swap remove ;
-: lf>crlf [ [ dup CHAR: \n = [ CHAR: \r , ] when , ] each ] "" make ;
+: crlf>lf ( str -- str' )
+    CHAR: \r swap remove ;
+
+: lf>crlf ( str -- str' )
+    [ [ dup CHAR: \n = [ CHAR: \r , ] when , ] each ] "" make ;
 
 : enum-clipboard ( -- seq )
     0
     [ EnumClipboardFormats win32-error dup dup 0 > ]
     [ ]
     [ drop ]
-    unfold nip ;
+    produce nip ;
 
 : with-clipboard ( quot -- )
     f OpenClipboard win32-error=0/f
@@ -90,12 +93,12 @@ SYMBOLS: msg-obj class-name-ptr mouse-captured ;
 : handle-wm-size ( hWnd uMsg wParam lParam -- )
     2nip
     [ lo-word ] keep hi-word 2array
-    dup { 0 0 } = [ 2drop ] [ swap window set-gadget-dim ] if ;
+    dup { 0 0 } = [ 2drop ] [ swap window (>>dim) ] if ;
 
 : handle-wm-move ( hWnd uMsg wParam lParam -- )
     2nip
     [ lo-word ] keep hi-word 2array
-    swap window set-world-loc ;
+    swap window (>>window-loc) ;
 
 : wm-keydown-codes ( -- key )
     H{
@@ -127,7 +130,7 @@ SYMBOLS: msg-obj class-name-ptr mouse-captured ;
         { 123 "F12" }
     } ;
 
-: key-state-down?
+: key-state-down? ( key -- ? )
     GetKeyState 16 bit? ;
 
 : left-shift? ( -- ? ) VK_LSHIFT key-state-down? ;
@@ -204,9 +207,9 @@ SYMBOLS: msg-obj class-name-ptr mouse-captured ;
     wParam keystroke>gesture <key-up>
     hWnd window-focus send-gesture drop ;
 
-: set-window-active ( hwnd uMsg wParam lParam ? -- n )
-    >r 4dup r> 2nip nip
-    swap window set-world-active? DefWindowProc ;
+:: set-window-active ( hwnd uMsg wParam lParam ? -- n )
+    ? hwnd window (>>active?)
+    hwnd uMsg wParam lParam DefWindowProc ;
 
 : handle-wm-syscommand ( hWnd uMsg wParam lParam -- n )
     {
@@ -218,14 +221,14 @@ SYMBOLS: msg-obj class-name-ptr mouse-captured ;
     } cond ;
 
 : cleanup-window ( handle -- )
-    dup win-title [ free ] when*
-    dup win-hRC wglDeleteContext win32-error=0/f
-    dup win-hWnd swap win-hDC ReleaseDC win32-error=0/f ;
+    dup title>> [ free ] when*
+    dup hRC>> wglDeleteContext win32-error=0/f
+    dup hWnd>> swap hDC>> ReleaseDC win32-error=0/f ;
 
 M: windows-ui-backend (close-window)
-    dup win-hWnd unregister-window
+    dup hWnd>> unregister-window
     dup cleanup-window
-    win-hWnd DestroyWindow win32-error=0/f ;
+    hWnd>> DestroyWindow win32-error=0/f ;
 
 : handle-wm-close ( hWnd uMsg wParam lParam -- )
     3drop window ungraft ;
@@ -380,7 +383,7 @@ SYMBOL: trace-messages?
     "uint" { "void*" "uint" "long" "long" } "stdcall" [
         [
             pick
-            trace-messages? get-global [ dup windows-message-name . ] when
+            trace-messages? get-global [ dup windows-message-name name>> print flush ] when
             wm-handlers get-global at* [ call ] [ drop DefWindowProc ] if
         ] ui-try
      ] alien-callback ;
@@ -417,7 +420,7 @@ M: windows-ui-backend do-events
     style 0 ex-style AdjustWindowRectEx win32-error=0/f ;
 
 : make-RECT ( world -- RECT )
-    dup world-loc { 40 40 } vmax dup rot rect-dim v+
+    dup window-loc>> { 40 40 } vmax dup rot rect-dim v+
     "RECT" <c-object>
     over first over set-RECT-right
     swap second over set-RECT-bottom
@@ -469,28 +472,28 @@ M: windows-ui-backend do-events
 M: windows-ui-backend (open-window) ( world -- )
     [ create-window dup setup-gl ] keep
     [ f <win> ] keep
-    [ swap win-hWnd register-window ] 2keep
-    dupd set-world-handle
-    win-hWnd show-window ;
+    [ swap hWnd>> register-window ] 2keep
+    dupd (>>handle)
+    hWnd>> show-window ;
 
 M: windows-ui-backend select-gl-context ( handle -- )
-    [ win-hDC ] keep win-hRC wglMakeCurrent win32-error=0/f ;
+    [ hDC>> ] keep hRC>> wglMakeCurrent win32-error=0/f ;
 
 M: windows-ui-backend flush-gl-context ( handle -- )
-    win-hDC SwapBuffers win32-error=0/f ;
+    hDC>> SwapBuffers win32-error=0/f ;
 
 ! Move window to front
 M: windows-ui-backend raise-window* ( world -- )
-    world-handle [
-        win-hWnd SetFocus drop
+    handle>> [
+        hWnd>> SetFocus drop
     ] when* ;
 
 M: windows-ui-backend set-title ( string world -- )
-    world-handle
-    dup win-title [ free ] when*
+    handle>>
+    dup title>> [ free ] when*
     >r utf16n malloc-string r>
-    2dup set-win-title
-    win-hWnd WM_SETTEXT 0 roll alien-address SendMessage drop ;
+    2dup (>>title)
+    hWnd>> WM_SETTEXT 0 roll alien-address SendMessage drop ;
 
 M: windows-ui-backend ui
     [
@@ -503,6 +506,9 @@ M: windows-ui-backend ui
         ] [ cleanup-win32-ui ] [ ] cleanup
     ] ui-running ;
 
+M: windows-ui-backend beep ( -- )
+    0 MessageBeep drop ;
+
 windows-ui-backend ui-backend set-global
 
 [ "ui" ] main-vocab-hook set-global
diff --git a/extra/ui/tools/walker/authors.txt b/basis/ui/x11/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/ui/tools/walker/authors.txt
rename to basis/ui/x11/authors.txt
diff --git a/basis/ui/x11/tags.txt b/basis/ui/x11/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/ui/x11/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/x11/x11.factor b/basis/ui/x11/x11.factor
similarity index 81%
rename from extra/ui/x11/x11.factor
rename to basis/ui/x11/x11.factor
index 50d383e6b8..854a0b0c62 100755
--- a/extra/ui/x11/x11.factor
+++ b/basis/ui/x11/x11.factor
@@ -1,18 +1,18 @@
-! Copyright (C) 2005, 2007 Eduardo Cavazos and Slava Pestov
+! Copyright (C) 2005, 2008 Eduardo Cavazos and Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types arrays ui ui.gadgets ui.gestures
-ui.backend ui.clipboards ui.gadgets.worlds ui.render assocs
-kernel math namespaces opengl sequences strings x11.xlib
+USING: accessors alien alien.c-types arrays ui ui.gadgets
+ui.gestures ui.backend ui.clipboards ui.gadgets.worlds ui.render
+assocs kernel math namespaces opengl sequences strings x11.xlib
 x11.events x11.xim x11.glx x11.clipboard x11.constants
 x11.windows io.encodings.string io.encodings.ascii
 io.encodings.utf8 combinators debugger command-line qualified
-math.vectors classes.tuple opengl.gl threads ;
+math.vectors classes.tuple opengl.gl threads math.geometry.rect ;
 QUALIFIED: system
 IN: ui.x11
 
 SINGLETON: x11-ui-backend
 
-: XA_NET_WM_NAME "_NET_WM_NAME" x-atom ;
+: XA_NET_WM_NAME ( -- atom ) "_NET_WM_NAME" x-atom ;
 
 TUPLE: x11-handle window glx xic ;
 
@@ -21,8 +21,8 @@ C: <x11-handle> x11-handle
 M: world expose-event nip relayout ;
 
 M: world configure-event
-    over configured-loc over set-world-loc
-    swap configured-dim over set-gadget-dim
+    over configured-loc over (>>window-loc)
+    swap configured-dim over (>>dim)
     ! In case dimensions didn't change
     relayout-1 ;
 
@@ -69,7 +69,7 @@ M: world configure-event
 
 : key-down-event>gesture ( event world -- string gesture )
     dupd
-    world-handle x11-handle-xic lookup-string
+    handle>> xic>> lookup-string
     >r swap event-modifiers r> key-code <key-down> ;
 
 M: world key-down-event
@@ -116,14 +116,14 @@ M: world motion-event
 
 M: world focus-in-event
     nip
-    dup world-handle x11-handle-xic XSetICFocus focus-world ;
+    dup handle>> xic>> XSetICFocus focus-world ;
 
 M: world focus-out-event
     nip
-    dup world-handle x11-handle-xic XUnsetICFocus unfocus-world ;
+    dup handle>> xic>> XUnsetICFocus unfocus-world ;
 
 M: world selection-notify-event
-    [ world-handle x11-handle-window selection-from-event ] keep
+    [ handle>> window>> selection-from-event ] keep
     world-focus user-input ;
 
 : supported-type? ( atom -- ? )
@@ -149,7 +149,7 @@ M: world selection-notify-event
     >r 8 PropModeReplace r>
     [
         XSelectionRequestEvent-selection
-        clipboard-for-atom x-clipboard-contents
+        clipboard-for-atom contents>>
     ] keep encode-clipboard dup length XChangeProperty drop ;
 
 M: world selection-request-event
@@ -161,19 +161,19 @@ M: world selection-request-event
     } cond ;
 
 M: x11-ui-backend (close-window) ( handle -- )
-    dup x11-handle-xic XDestroyIC
-    dup x11-handle-glx destroy-glx
-    x11-handle-window dup unregister-window
+    dup xic>> XDestroyIC
+    dup glx>> destroy-glx
+    window>> dup unregister-window
     destroy-window ;
 
 M: world client-event
     swap close-box? [ ungraft ] [ drop ] if ;
 
 : gadget-window ( world -- )
-    dup world-loc over rect-dim glx-window
+    dup window-loc>> over rect-dim glx-window
     over "Factor" create-xic <x11-handle>
-    2dup x11-handle-window register-window
-    swap set-world-handle ;
+    2dup window>> register-window
+    swap (>>handle) ;
 
 : wait-event ( -- event )
     QueuedAfterFlush events-queued 0 > [
@@ -188,16 +188,16 @@ M: x11-ui-backend do-events
     [ [ 2dup handle-event ] assert-depth ] when 2drop ;
 
 : x-clipboard@ ( gadget clipboard -- prop win )
-    x-clipboard-atom swap
-    find-world world-handle x11-handle-window ;
+    atom>> swap
+    find-world handle>> window>> ;
 
 M: x-clipboard copy-clipboard
     [ x-clipboard@ own-selection ] keep
-    set-x-clipboard-contents ;
+    (>>contents) ;
 
 M: x-clipboard paste-clipboard
-    >r find-world world-handle x11-handle-window
-    r> x-clipboard-atom convert-selection ;
+    >r find-world handle>> window>>
+    r> atom>> convert-selection ;
 
 : init-clipboard ( -- )
     XA_PRIMARY <x-clipboard> selection set-global
@@ -212,11 +212,11 @@ M: x-clipboard paste-clipboard
     r> utf8 encode dup length XChangeProperty drop ;
 
 M: x11-ui-backend set-title ( string world -- )
-    world-handle x11-handle-window swap dpy get -rot
+    handle>> window>> swap dpy get -rot
     3dup set-title-old set-title-new ;
     
 M: x11-ui-backend set-fullscreen* ( ? world -- )
-    world-handle x11-handle-window "XClientMessageEvent" <c-object>
+    handle>> window>> "XClientMessageEvent" <c-object>
     tuck set-XClientMessageEvent-window
     swap _NET_WM_STATE_ADD _NET_WM_STATE_REMOVE ?
     over set-XClientMessageEvent-data0
@@ -230,20 +230,20 @@ M: x11-ui-backend set-fullscreen* ( ? world -- )
 
 M: x11-ui-backend (open-window) ( world -- )
     dup gadget-window
-    world-handle x11-handle-window dup set-closable map-window ;
+    handle>> window>> dup set-closable map-window ;
 
 M: x11-ui-backend raise-window* ( world -- )
-    world-handle [
-        dpy get swap x11-handle-window XRaiseWindow drop
+    handle>> [
+        dpy get swap window>> XRaiseWindow drop
     ] when* ;
 
 M: x11-ui-backend select-gl-context ( handle -- )
     dpy get swap
-    dup x11-handle-window swap x11-handle-glx glXMakeCurrent
+    dup window>> swap glx>> glXMakeCurrent
     [ "Failed to set current GLX context" throw ] unless ;
 
 M: x11-ui-backend flush-gl-context ( handle -- )
-    dpy get swap x11-handle-window glXSwapBuffers ;
+    dpy get swap window>> glXSwapBuffers ;
 
 M: x11-ui-backend ui ( -- )
     [
@@ -257,6 +257,9 @@ M: x11-ui-backend ui ( -- )
         ] with-x
     ] ui-running ;
 
+M: x11-ui-backend beep ( -- )
+    dpy get 100 XBell drop ;
+
 x11-ui-backend ui-backend set-global
 
 [ "DISPLAY" system:os-env "ui" "listener" ? ]
diff --git a/extra/unicode/breaks/authors.txt b/basis/unicode/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/unicode/breaks/authors.txt
rename to basis/unicode/authors.txt
diff --git a/extra/unicode/case/authors.txt b/basis/unicode/breaks/authors.txt
similarity index 100%
rename from extra/unicode/case/authors.txt
rename to basis/unicode/breaks/authors.txt
diff --git a/extra/unicode/breaks/breaks-tests.factor b/basis/unicode/breaks/breaks-tests.factor
similarity index 100%
rename from extra/unicode/breaks/breaks-tests.factor
rename to basis/unicode/breaks/breaks-tests.factor
diff --git a/extra/unicode/breaks/breaks.factor b/basis/unicode/breaks/breaks.factor
similarity index 89%
rename from extra/unicode/breaks/breaks.factor
rename to basis/unicode/breaks/breaks.factor
index 23dfc16e78..e4018e4d20 100755
--- a/extra/unicode/breaks/breaks.factor
+++ b/basis/unicode/breaks/breaks.factor
@@ -1,8 +1,7 @@
-USING: unicode.categories kernel math combinators splitting
+USING: combinators.short-circuit unicode.categories kernel math combinators splitting
 sequences math.parser io.files io assocs arrays namespaces
 math.ranges unicode.normalize values io.encodings.ascii
-unicode.syntax unicode.data compiler.units alien.syntax sets
-combinators.lib ;
+unicode.syntax unicode.data compiler.units alien.syntax sets ;
 IN: unicode.breaks
 
 C-ENUM: Any L V T Extend Control CR LF graphemes ;
@@ -23,8 +22,7 @@ CATEGORY: grapheme-control Zl Zp Cc Cf ;
 
 CATEGORY: (extend) Me Mn ;
 : extend? ( ch -- ? )
-    [ (extend)? ]
-    [ "Other_Grapheme_Extend" property? ] or? ;
+    { [ (extend)? ] [ "Other_Grapheme_Extend" property? ] } 1|| ;
 
 : grapheme-class ( ch -- class )
     {
@@ -35,7 +33,7 @@ CATEGORY: (extend) Me Mn ;
     } cond ;
 
 : init-grapheme-table ( -- table )
-    graphemes [ drop graphemes f <array> ] map ;
+    graphemes [ graphemes f <array> ] replicate ;
 
 SYMBOL: table
 
@@ -82,10 +80,10 @@ VALUE: grapheme-table
     nip swap length or 1+ ;
 
 : (>graphemes) ( str -- )
-    dup empty? [ drop ] [
+    [
         dup first-grapheme cut-slice
         swap , (>graphemes)
-    ] if ;
+    ] unless-empty ;
 
 : >graphemes ( str -- graphemes )
     [ (>graphemes) ] { } make ;
diff --git a/extra/unicode/breaks/tags.txt b/basis/unicode/breaks/tags.txt
similarity index 100%
rename from extra/unicode/breaks/tags.txt
rename to basis/unicode/breaks/tags.txt
diff --git a/extra/unicode/case/SpecialCasing.txt b/basis/unicode/case/SpecialCasing.txt
similarity index 100%
rename from extra/unicode/case/SpecialCasing.txt
rename to basis/unicode/case/SpecialCasing.txt
diff --git a/extra/unicode/categories/authors.txt b/basis/unicode/case/authors.txt
similarity index 100%
rename from extra/unicode/categories/authors.txt
rename to basis/unicode/case/authors.txt
diff --git a/extra/unicode/case/case-tests.factor b/basis/unicode/case/case-tests.factor
similarity index 90%
rename from extra/unicode/case/case-tests.factor
rename to basis/unicode/case/case-tests.factor
index 531fa2faab..6401ce201e 100755
--- a/extra/unicode/case/case-tests.factor
+++ b/basis/unicode/case/case-tests.factor
@@ -1,5 +1,9 @@
 USING: unicode.case tools.test namespaces ;
 
+\ >upper must-infer
+\ >lower must-infer
+\ >title must-infer
+
 [ "Hello How Are You? I'M Good" ] [ "hEllo how ARE yOU? I'm good" >title ] unit-test
 [ "FUSS" ] [ "Fu\u0000DF" >upper ] unit-test
 [ "\u0003C3\u0003C2" ] [ "\u0003A3\u0003A3" >lower ] unit-test
diff --git a/extra/unicode/case/case.factor b/basis/unicode/case/case.factor
similarity index 79%
rename from extra/unicode/case/case.factor
rename to basis/unicode/case/case.factor
index c377bda462..0234a959da 100755
--- a/extra/unicode/case/case.factor
+++ b/basis/unicode/case/case.factor
@@ -1,6 +1,6 @@
-USING: kernel unicode.data sequences sequences.next namespaces
+USING: unicode.data sequences sequences.next namespaces
 unicode.normalize math unicode.categories combinators
-assocs strings splitting ;
+assocs strings splitting kernel accessors ;
 IN: unicode.case
 
 : at-default ( key assoc -- value/key ) over >r at r> or ;
@@ -70,30 +70,38 @@ SYMBOL: locale ! Just casing locale, or overall?
 : final-sigma ( string -- string )
     HEX: 3A3 over member? [ sigma-map ] when ;
 
+! : map-case ( string string-quot char-quot -- case )
+!     [
+!         rot [
+!             -rot [
+!                 rot dup special-casing at
+!                 [ -rot drop call % ]
+!                 [ -rot nip call , ] ?if
+!             ] 2keep
+!         ] each 2drop
+!     ] "" make ; inline
+
 : map-case ( string string-quot char-quot -- case )
     [
-        rot [
-            -rot [
-                rot dup special-casing at
-                [ -rot drop call % ]
-                [ -rot nip call , ] ?if
-            ] 2keep
-        ] each 2drop
+        [
+            [ dup special-casing at ] 2dip
+            [ [ % ] compose ] [ [ , ] compose ] bi* ?if
+        ] 2curry each
     ] "" make ; inline
 
 : >lower ( string -- lower )
     i-dot? [ turk>lower ] when
-    final-sigma [ code-point-lower ] [ ch>lower ] map-case ;
+    final-sigma [ lower>> ] [ ch>lower ] map-case ;
 
 : >upper ( string -- upper )
     i-dot? [ turk>upper ] when
-    [ code-point-upper ] [ ch>upper ] map-case ;
+    [ upper>> ] [ ch>upper ] map-case ;
 
 : >title ( string -- title )
     final-sigma
     CHAR: \s swap
     [ tuck word-boundary swapd
-        [ code-point-title ] [ code-point-lower ] if ]
+        [ title>> ] [ lower>> ] if ]
     [ tuck word-boundary swapd 
         [ ch>title ] [ ch>lower ] if ]
     map-case nip ;
diff --git a/extra/unicode/case/tags.txt b/basis/unicode/case/tags.txt
similarity index 100%
rename from extra/unicode/case/tags.txt
rename to basis/unicode/case/tags.txt
diff --git a/extra/unicode/data/authors.txt b/basis/unicode/categories/authors.txt
similarity index 100%
rename from extra/unicode/data/authors.txt
rename to basis/unicode/categories/authors.txt
diff --git a/extra/unicode/categories/categories-tests.factor b/basis/unicode/categories/categories-tests.factor
similarity index 100%
rename from extra/unicode/categories/categories-tests.factor
rename to basis/unicode/categories/categories-tests.factor
diff --git a/extra/unicode/categories/categories.factor b/basis/unicode/categories/categories.factor
similarity index 100%
rename from extra/unicode/categories/categories.factor
rename to basis/unicode/categories/categories.factor
diff --git a/extra/unicode/categories/tags.txt b/basis/unicode/categories/tags.txt
similarity index 100%
rename from extra/unicode/categories/tags.txt
rename to basis/unicode/categories/tags.txt
diff --git a/extra/unicode/collation/CollationTest_SHIFTED.txt b/basis/unicode/collation/CollationTest_SHIFTED.txt
similarity index 100%
rename from extra/unicode/collation/CollationTest_SHIFTED.txt
rename to basis/unicode/collation/CollationTest_SHIFTED.txt
diff --git a/extra/unicode/collation/allkeys.txt b/basis/unicode/collation/allkeys.txt
similarity index 100%
rename from extra/unicode/collation/allkeys.txt
rename to basis/unicode/collation/allkeys.txt
diff --git a/extra/unicode/collation/collation-docs.factor b/basis/unicode/collation/collation-docs.factor
similarity index 97%
rename from extra/unicode/collation/collation-docs.factor
rename to basis/unicode/collation/collation-docs.factor
index 0e92042ddd..3847ca2237 100644
--- a/extra/unicode/collation/collation-docs.factor
+++ b/basis/unicode/collation/collation-docs.factor
@@ -3,7 +3,7 @@ IN: unicode.collation
 
 ABOUT: "unicode.collation"
 
-ARTICLE: "unicode.collation" "Unicode collation algorithm"
+ARTICLE: "unicode.collation" "Unicode collation algorithm (UCA)"
 "The Unicode Collation Algorithm (UTS #10) forms a reasonable way to sort strings when accouting for all of the characters in Unicode. At the moment, only the default Unicode collation element table (DUCET) is used, but a more accurate collation would take locale into account. The following words are defined:"
 { $subsection sort-strings }
 { $subsection collation-key }
diff --git a/extra/unicode/collation/collation-tests.factor b/basis/unicode/collation/collation-tests.factor
similarity index 75%
rename from extra/unicode/collation/collation-tests.factor
rename to basis/unicode/collation/collation-tests.factor
index 16ac50d5a9..bf87c6b7da 100755
--- a/extra/unicode/collation/collation-tests.factor
+++ b/basis/unicode/collation/collation-tests.factor
@@ -1,10 +1,10 @@
-USING: io io.files splitting unicode.collation sequences kernel
-io.encodings.utf8 math.parser math.order tools.test assocs
-io.streams.null words combinators.lib ;
+USING: io io.files splitting grouping unicode.collation
+sequences kernel io.encodings.utf8 math.parser math.order
+tools.test assocs io.streams.null words ;
 IN: unicode.collation.tests
 
 : parse-test ( -- strings )
-    "resource:extra/unicode/collation/CollationTest_SHIFTED.txt"
+    "resource:basis/unicode/collation/CollationTest_SHIFTED.txt"
     utf8 file-lines 5 tail
     [ ";" split1 drop " " split [ hex> ] "" map-as ] map ;
 
@@ -17,7 +17,7 @@ IN: unicode.collation.tests
 
 : test-equality
     { primary= secondary= tertiary= quaternary= }
-    [ execute ] 2with each ;
+    [ execute ] with with each ;
 
 [ f f f f ] [ "hello" "hi" test-equality ] unit-test
 [ t f f f ] [ "hello" "h\u0000e9llo" test-equality ] unit-test
diff --git a/extra/unicode/collation/collation.factor b/basis/unicode/collation/collation.factor
similarity index 87%
rename from extra/unicode/collation/collation.factor
rename to basis/unicode/collation/collation.factor
index f71a58be85..d71fffaaab 100755
--- a/extra/unicode/collation/collation.factor
+++ b/basis/unicode/collation/collation.factor
@@ -1,7 +1,7 @@
-USING: sequences io.files io.encodings.ascii kernel values
-splitting accessors math.parser ascii io assocs strings math
-namespaces sorting combinators math.order arrays
-unicode.normalize unicode.data combinators.lib locals
+USING: combinators.short-circuit sequences io.files
+io.encodings.ascii kernel values splitting accessors math.parser
+ascii io assocs strings math namespaces sorting combinators
+math.order arrays unicode.normalize unicode.data locals
 unicode.syntax macros sequences.deep words unicode.breaks
 quotations ;
 IN: unicode.collation
@@ -26,7 +26,7 @@ TUPLE: weight primary secondary tertiary ignorable? ;
     lines filter-comments
     [ parse-line ] H{ } map>assoc ;
 
-"resource:extra/unicode/collation/allkeys.txt"
+"resource:basis/unicode/collation/allkeys.txt"
 ascii <file-reader> parse-ducet \ ducet set-value
 
 ! Fix up table for long contractions
@@ -58,8 +58,7 @@ ducet insert-helpers
     HEX: 7FFF bitand HEX: 8000 bitor 0 0 f weight boa ;
 
 : illegal? ( char -- ? )
-    [ "Noncharacter_Code_Point" property? ]
-    [ category "Cs" = ] or? ;
+    { [ "Noncharacter_Code_Point" property? ] [ category "Cs" = ] } 1|| ;
 
 : derive-weight ( char -- weights )
     first dup illegal?
@@ -87,7 +86,7 @@ ducet insert-helpers
 : add ( char -- )
     dup blocked? [ 1string , ] [
         dup possible-bases dup length
-        [ ?combine ] 2with contains?
+        [ ?combine ] with with contains?
         [ drop ] [ 1string , ] if
     ] if ;
 
@@ -137,7 +136,7 @@ PRIVATE>
 : insensitive= ( str1 str2 levels-removed -- ? )
     [
         swap collation-key swap
-        [ [ 0 = not ] right-trim but-last ] times
+        [ [ 0 = not ] trim-right but-last ] times
     ] curry bi@ = ;
 PRIVATE>
 
diff --git a/extra/unicode/data/PropList.txt b/basis/unicode/data/PropList.txt
similarity index 100%
rename from extra/unicode/data/PropList.txt
rename to basis/unicode/data/PropList.txt
diff --git a/extra/unicode/data/SpecialCasing.txt b/basis/unicode/data/SpecialCasing.txt
similarity index 100%
rename from extra/unicode/data/SpecialCasing.txt
rename to basis/unicode/data/SpecialCasing.txt
diff --git a/extra/unicode/data/UnicodeData.txt b/basis/unicode/data/UnicodeData.txt
similarity index 100%
rename from extra/unicode/data/UnicodeData.txt
rename to basis/unicode/data/UnicodeData.txt
diff --git a/extra/unicode/normalize/authors.txt b/basis/unicode/data/authors.txt
similarity index 100%
rename from extra/unicode/normalize/authors.txt
rename to basis/unicode/data/authors.txt
diff --git a/extra/unicode/data/data.factor b/basis/unicode/data/data.factor
similarity index 86%
rename from extra/unicode/data/data.factor
rename to basis/unicode/data/data.factor
index f9e5667947..6d6ed276a8 100755
--- a/extra/unicode/data/data.factor
+++ b/basis/unicode/data/data.factor
@@ -1,8 +1,8 @@
-USING: assocs math kernel sequences io.files hashtables
-quotations splitting arrays math.parser hash2 math.order
-byte-arrays words namespaces words compiler.units parser
-io.encodings.ascii values interval-maps ascii sets assocs.lib
-combinators.lib combinators locals math.ranges sorting ;
+USING: combinators.short-circuit assocs math kernel sequences
+io.files hashtables quotations splitting grouping arrays
+math.parser hash2 math.order byte-arrays words namespaces words
+compiler.units parser io.encodings.ascii values interval-maps
+ascii sets combinators locals math.ranges sorting ;
 IN: unicode.data
 
 VALUE: simple-lower
@@ -39,18 +39,18 @@ VALUE: properties
     ascii file-lines [ split-; ] map ;
 
 : load-data ( -- data )
-    "resource:extra/unicode/data/UnicodeData.txt" data ;
+    "resource:basis/unicode/data/UnicodeData.txt" data ;
 
 : filter-comments ( lines -- lines )
     [ "#@" split first ] map harvest ;
 
 : (process-data) ( index data -- newdata )
     filter-comments
-    [ [ nth ] keep first swap 2array ] with map
+    [ [ nth ] keep first swap ] with { } map>assoc
     [ >r hex> r> ] assoc-map ;
 
 : process-data ( index data -- hash )
-    (process-data) [ hex> ] assoc-map >hashtable ;
+    (process-data) [ hex> ] assoc-map [ nip ] assoc-filter >hashtable ;
 
 : (chain-decomposed) ( hash value -- newvalue )
     [
@@ -62,7 +62,7 @@ VALUE: properties
     dup [ swap (chain-decomposed) ] curry assoc-map ;
 
 : first* ( seq -- ? )
-    second [ empty? ] [ first ] or? ;
+    second { [ empty? ] [ first ] } 1|| ;
 
 : (process-decomposed) ( data -- alist )
     5 swap (process-data)
@@ -107,7 +107,7 @@ VALUE: properties
 
 :: fill-ranges ( table -- table )
     name-map >alist sort-values keys
-    [ [ "first>" tail? ] [ "last>" tail? ] or? ] filter
+    [ { [ "first>" tail? ] [ "last>" tail? ] } 1|| ] filter
     2 group [
         [ name>char ] bi@ [ [a,b] ] [ table ?nth ] bi
         [ swap table ?set-nth ] curry each
@@ -125,7 +125,7 @@ VALUE: properties
 : process-names ( data -- names-hash )
     1 swap (process-data) [
         ascii-lower { { CHAR: \s CHAR: - } } substitute swap
-    ] assoc-map >hashtable ;
+    ] H{ } assoc-map-as ;
 
 : multihex ( hexstring -- string )
     " " split [ hex> ] map sift ;
@@ -140,7 +140,7 @@ C: <code-point> code-point
 
 ! Extra properties
 : properties-lines ( -- lines )
-    "resource:extra/unicode/data/PropList.txt"
+    "resource:basis/unicode/data/PropList.txt"
     ascii file-lines ;
 
 : parse-properties ( -- {{[a,b],prop}} )
@@ -151,7 +151,7 @@ C: <code-point> code-point
 
 : properties>intervals ( properties -- assoc[str,interval] )
     dup values prune [ f ] H{ } map>assoc
-    [ [ insert-at ] curry assoc-each ] keep
+    [ [ push-at ] curry assoc-each ] keep
     [ <interval-set> ] assoc-map ;
 
 : load-properties ( -- assoc )
@@ -159,7 +159,7 @@ C: <code-point> code-point
 
 ! Special casing data
 : load-special-casing ( -- special-casing )
-    "resource:extra/unicode/data/SpecialCasing.txt" data
+    "resource:basis/unicode/data/SpecialCasing.txt" data
     [ length 5 = ] filter
     [ [ set-code-point ] each ] H{ } make-assoc ;
 
diff --git a/extra/unicode/data/tags.txt b/basis/unicode/data/tags.txt
similarity index 100%
rename from extra/unicode/data/tags.txt
rename to basis/unicode/data/tags.txt
diff --git a/extra/unicode/normalize/NormalizationTest.txt b/basis/unicode/normalize/NormalizationTest.txt
similarity index 100%
rename from extra/unicode/normalize/NormalizationTest.txt
rename to basis/unicode/normalize/NormalizationTest.txt
diff --git a/extra/unicode/syntax/authors.txt b/basis/unicode/normalize/authors.txt
similarity index 100%
rename from extra/unicode/syntax/authors.txt
rename to basis/unicode/normalize/authors.txt
diff --git a/extra/unicode/normalize/normalize-tests.factor b/basis/unicode/normalize/normalize-tests.factor
similarity index 96%
rename from extra/unicode/normalize/normalize-tests.factor
rename to basis/unicode/normalize/normalize-tests.factor
index d4de423e36..cae1380ab4 100755
--- a/extra/unicode/normalize/normalize-tests.factor
+++ b/basis/unicode/normalize/normalize-tests.factor
@@ -21,7 +21,7 @@ IN: unicode.normalize.tests
 [ "\u00d55c" ] [ "\u001112\u001161\u0011ab" nfc ] unit-test
 
 : parse-test ( -- tests )
-    "resource:extra/unicode/normalize/NormalizationTest.txt"
+    "resource:basis/unicode/normalize/NormalizationTest.txt"
     utf8 file-lines filter-comments
     [ ";" split 5 head [ " " split [ hex> ] "" map-as ] map ] map ;
 
diff --git a/extra/unicode/normalize/normalize.factor b/basis/unicode/normalize/normalize.factor
similarity index 97%
rename from extra/unicode/normalize/normalize.factor
rename to basis/unicode/normalize/normalize.factor
index 576c5a7e20..6f36461d38 100755
--- a/extra/unicode/normalize/normalize.factor
+++ b/basis/unicode/normalize/normalize.factor
@@ -1,5 +1,5 @@
 USING: sequences namespaces unicode.data kernel math arrays
-locals combinators.lib sequences.lib combinators.lib ;
+locals sorting.insertion accessors ;
 IN: unicode.normalize
 
 ! Conjoining Jamo behavior
@@ -43,7 +43,7 @@ IN: unicode.normalize
 : reorder-next ( string i -- new-i done? )
     over [ non-starter? ] find-from drop [
         reorder-slice
-        >r dup [ combining-class ] insertion-sort slice-to r>
+        >r dup [ combining-class ] insertion-sort to>> r>
     ] [ length t ] if* ;
 
 : reorder-loop ( string start -- )
diff --git a/extra/unicode/normalize/tags.txt b/basis/unicode/normalize/tags.txt
similarity index 100%
rename from extra/unicode/normalize/tags.txt
rename to basis/unicode/normalize/tags.txt
diff --git a/extra/unicode/script/Scripts.txt b/basis/unicode/script/Scripts.txt
similarity index 100%
rename from extra/unicode/script/Scripts.txt
rename to basis/unicode/script/Scripts.txt
diff --git a/extra/unicode/script/authors.txt b/basis/unicode/script/authors.txt
similarity index 100%
rename from extra/unicode/script/authors.txt
rename to basis/unicode/script/authors.txt
diff --git a/extra/unicode/script/script-docs.factor b/basis/unicode/script/script-docs.factor
similarity index 91%
rename from extra/unicode/script/script-docs.factor
rename to basis/unicode/script/script-docs.factor
index 05828b778f..6612825c21 100755
--- a/extra/unicode/script/script-docs.factor
+++ b/basis/unicode/script/script-docs.factor
@@ -4,5 +4,3 @@ IN: unicode.script
 HELP: script-of
 { $values { "char" "a code point" } { "script" "a symbol" } }
 { $description "Gets a symbol representing the code point of a given character. The word name of the symbol is the same as the one " } ;
-
-ABOUT: script-of
diff --git a/extra/unicode/script/script-tests.factor b/basis/unicode/script/script-tests.factor
similarity index 100%
rename from extra/unicode/script/script-tests.factor
rename to basis/unicode/script/script-tests.factor
diff --git a/extra/unicode/script/script.factor b/basis/unicode/script/script.factor
similarity index 88%
rename from extra/unicode/script/script.factor
rename to basis/unicode/script/script.factor
index 7a5dcc36b6..40b0751e2c 100755
--- a/extra/unicode/script/script.factor
+++ b/basis/unicode/script/script.factor
@@ -1,4 +1,4 @@
-USING: values kernel sequences assocs io.files
+USING: accessors values kernel sequences assocs io.files
 io.encodings ascii math.ranges io splitting math.parser 
 namespaces byte-arrays locals math sets io.encodings.ascii
 words compiler.units arrays interval-maps unicode.data ;
@@ -14,7 +14,7 @@ SYMBOL: interned
 
 : range, ( value key -- )
     swap interned get
-    [ word-name = ] with find nip 2array , ;
+    [ name>> = ] with find nip 2array , ;
 
 : expand-ranges ( assoc -- interval-map )
     [
@@ -36,7 +36,7 @@ SYMBOL: interned
     ] with-variable ;
 
 : load-script ( -- )
-    "resource:extra/unicode/script/Scripts.txt"
+    "resource:basis/unicode/script/Scripts.txt"
     ascii <file-reader> parse-script process-script ;
 
 load-script
diff --git a/extra/unicode/script/summary.txt b/basis/unicode/script/summary.txt
similarity index 100%
rename from extra/unicode/script/summary.txt
rename to basis/unicode/script/summary.txt
diff --git a/extra/unicode/summary.txt b/basis/unicode/summary.txt
similarity index 100%
rename from extra/unicode/summary.txt
rename to basis/unicode/summary.txt
diff --git a/extra/wrap/authors.txt b/basis/unicode/syntax/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/wrap/authors.txt
rename to basis/unicode/syntax/authors.txt
diff --git a/extra/unicode/syntax/syntax.factor b/basis/unicode/syntax/syntax.factor
similarity index 92%
rename from extra/unicode/syntax/syntax.factor
rename to basis/unicode/syntax/syntax.factor
index b5ba25db4e..9df14a3928 100755
--- a/extra/unicode/syntax/syntax.factor
+++ b/basis/unicode/syntax/syntax.factor
@@ -1,6 +1,6 @@
-USING: unicode.data kernel math sequences parser bit-arrays
+USING: unicode.data kernel math sequences parser lexer bit-arrays
 namespaces sequences.private arrays quotations assocs
-classes.predicate math.order ;
+classes.predicate math.order eval ;
 IN: unicode.syntax
 
 ! Character classes (categories)
diff --git a/extra/unicode/syntax/tags.txt b/basis/unicode/syntax/tags.txt
similarity index 100%
rename from extra/unicode/syntax/tags.txt
rename to basis/unicode/syntax/tags.txt
diff --git a/extra/unicode/tags.txt b/basis/unicode/tags.txt
similarity index 100%
rename from extra/unicode/tags.txt
rename to basis/unicode/tags.txt
diff --git a/extra/ui/tools/workspace/authors.txt b/basis/unix/authors.txt
similarity index 100%
rename from extra/ui/tools/workspace/authors.txt
rename to basis/unix/authors.txt
diff --git a/extra/ui/traverse/authors.txt b/basis/unix/bsd/authors.txt
similarity index 100%
rename from extra/ui/traverse/authors.txt
rename to basis/unix/bsd/authors.txt
diff --git a/extra/unix/bsd/bsd.factor b/basis/unix/bsd/bsd.factor
similarity index 82%
rename from extra/unix/bsd/bsd.factor
rename to basis/unix/bsd/bsd.factor
index 0c669d2258..6934d5b8dc 100755
--- a/extra/unix/bsd/bsd.factor
+++ b/basis/unix/bsd/bsd.factor
@@ -7,13 +7,16 @@ IN: unix
 
 : MAXPATHLEN 1024 ; inline
 
-: O_RDONLY  HEX: 0000 ; inline
-: O_WRONLY  HEX: 0001 ; inline
-: O_RDWR    HEX: 0002 ; inline
-: O_APPEND  HEX: 0008 ; inline
-: O_CREAT   HEX: 0200 ; inline
-: O_TRUNC   HEX: 0400 ; inline
-: O_EXCL    HEX: 0800 ; inline
+: O_RDONLY   HEX: 0000 ; inline
+: O_WRONLY   HEX: 0001 ; inline
+: O_RDWR     HEX: 0002 ; inline
+: O_NONBLOCK HEX: 0004 ; inline
+: O_APPEND   HEX: 0008 ; inline
+: O_CREAT    HEX: 0200 ; inline
+: O_TRUNC    HEX: 0400 ; inline
+: O_EXCL     HEX: 0800 ; inline
+: O_NOCTTY   HEX: 20000 ; inline
+: O_NDELAY O_NONBLOCK ; inline
 
 : SOL_SOCKET HEX: ffff ; inline
 : SO_REUSEADDR HEX: 4 ; inline
@@ -24,7 +27,6 @@ IN: unix
 : F_SETFD 2 ; inline
 : F_SETFL 4 ; inline
 : FD_CLOEXEC 1 ; inline
-: O_NONBLOCK 4 ; inline
 
 C-STRUCT: sockaddr-in
     { "uchar" "len" }
diff --git a/extra/unix/bsd/freebsd/freebsd.factor b/basis/unix/bsd/freebsd/freebsd.factor
similarity index 100%
rename from extra/unix/bsd/freebsd/freebsd.factor
rename to basis/unix/bsd/freebsd/freebsd.factor
diff --git a/basis/unix/bsd/freebsd/tags.txt b/basis/unix/bsd/freebsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/bsd/freebsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/bsd/macosx/macosx.factor b/basis/unix/bsd/macosx/macosx.factor
similarity index 100%
rename from extra/unix/bsd/macosx/macosx.factor
rename to basis/unix/bsd/macosx/macosx.factor
diff --git a/basis/unix/bsd/macosx/tags.txt b/basis/unix/bsd/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/bsd/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/bsd/netbsd/netbsd.factor b/basis/unix/bsd/netbsd/netbsd.factor
similarity index 100%
rename from extra/unix/bsd/netbsd/netbsd.factor
rename to basis/unix/bsd/netbsd/netbsd.factor
diff --git a/basis/unix/bsd/netbsd/tags.txt b/basis/unix/bsd/netbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/bsd/netbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/bsd/openbsd/openbsd.factor b/basis/unix/bsd/openbsd/openbsd.factor
similarity index 100%
rename from extra/unix/bsd/openbsd/openbsd.factor
rename to basis/unix/bsd/openbsd/openbsd.factor
diff --git a/basis/unix/bsd/openbsd/tags.txt b/basis/unix/bsd/openbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/bsd/openbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/bsd/summary.txt b/basis/unix/bsd/summary.txt
similarity index 100%
rename from extra/unix/bsd/summary.txt
rename to basis/unix/bsd/summary.txt
diff --git a/basis/unix/bsd/tags.txt b/basis/unix/bsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/bsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/x11/authors.txt b/basis/unix/kqueue/authors.txt
similarity index 100%
rename from extra/ui/x11/authors.txt
rename to basis/unix/kqueue/authors.txt
diff --git a/extra/unix/kqueue/freebsd/freebsd.factor b/basis/unix/kqueue/freebsd/freebsd.factor
similarity index 100%
rename from extra/unix/kqueue/freebsd/freebsd.factor
rename to basis/unix/kqueue/freebsd/freebsd.factor
diff --git a/basis/unix/kqueue/freebsd/tags.txt b/basis/unix/kqueue/freebsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/kqueue/freebsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/kqueue/kqueue.factor b/basis/unix/kqueue/kqueue.factor
similarity index 97%
rename from extra/unix/kqueue/kqueue.factor
rename to basis/unix/kqueue/kqueue.factor
index 080820ebd0..83c3bb5232 100644
--- a/extra/unix/kqueue/kqueue.factor
+++ b/basis/unix/kqueue/kqueue.factor
@@ -3,7 +3,7 @@
 USING: alien.syntax system sequences vocabs.loader words ;
 IN: unix.kqueue
 
-<< "unix.kqueue." os word-name append require >>
+<< "unix.kqueue." os name>> append require >>
 
 FUNCTION: int kqueue ( ) ;
 
diff --git a/extra/unix/kqueue/macosx/macosx.factor b/basis/unix/kqueue/macosx/macosx.factor
similarity index 100%
rename from extra/unix/kqueue/macosx/macosx.factor
rename to basis/unix/kqueue/macosx/macosx.factor
diff --git a/basis/unix/kqueue/macosx/tags.txt b/basis/unix/kqueue/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/kqueue/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/kqueue/netbsd/netbsd.factor b/basis/unix/kqueue/netbsd/netbsd.factor
similarity index 100%
rename from extra/unix/kqueue/netbsd/netbsd.factor
rename to basis/unix/kqueue/netbsd/netbsd.factor
diff --git a/basis/unix/kqueue/netbsd/tags.txt b/basis/unix/kqueue/netbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/kqueue/netbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/kqueue/openbsd/openbsd.factor b/basis/unix/kqueue/openbsd/openbsd.factor
similarity index 100%
rename from extra/unix/kqueue/openbsd/openbsd.factor
rename to basis/unix/kqueue/openbsd/openbsd.factor
diff --git a/basis/unix/kqueue/openbsd/tags.txt b/basis/unix/kqueue/openbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/kqueue/openbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/unix/kqueue/tags.txt b/basis/unix/kqueue/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/kqueue/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/authors.txt b/basis/unix/linux/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/unix/authors.txt
rename to basis/unix/linux/authors.txt
diff --git a/extra/unix/bsd/authors.txt b/basis/unix/linux/epoll/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/unix/bsd/authors.txt
rename to basis/unix/linux/epoll/authors.txt
diff --git a/extra/unix/linux/epoll/epoll.factor b/basis/unix/linux/epoll/epoll.factor
similarity index 100%
rename from extra/unix/linux/epoll/epoll.factor
rename to basis/unix/linux/epoll/epoll.factor
diff --git a/basis/unix/linux/epoll/tags.txt b/basis/unix/linux/epoll/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/epoll/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/editors/emacs/authors.txt b/basis/unix/linux/fs/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/editors/emacs/authors.txt
rename to basis/unix/linux/fs/authors.txt
diff --git a/extra/unix/linux/fs/fs.factor b/basis/unix/linux/fs/fs.factor
similarity index 100%
rename from extra/unix/linux/fs/fs.factor
rename to basis/unix/linux/fs/fs.factor
diff --git a/basis/unix/linux/fs/tags.txt b/basis/unix/linux/fs/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/fs/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/generic/lib/authors.txt b/basis/unix/linux/if/authors.txt
similarity index 100%
rename from extra/generic/lib/authors.txt
rename to basis/unix/linux/if/authors.txt
diff --git a/extra/unix/linux/if/if.factor b/basis/unix/linux/if/if.factor
similarity index 100%
rename from extra/unix/linux/if/if.factor
rename to basis/unix/linux/if/if.factor
diff --git a/basis/unix/linux/if/tags.txt b/basis/unix/linux/if/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/if/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/lsys/authors.txt b/basis/unix/linux/ifreq/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/lsys/authors.txt
rename to basis/unix/linux/ifreq/authors.txt
diff --git a/extra/unix/linux/ifreq/ifreq.factor b/basis/unix/linux/ifreq/ifreq.factor
similarity index 100%
rename from extra/unix/linux/ifreq/ifreq.factor
rename to basis/unix/linux/ifreq/ifreq.factor
diff --git a/basis/unix/linux/ifreq/tags.txt b/basis/unix/linux/ifreq/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/ifreq/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/linux/inotify/inotify.factor b/basis/unix/linux/inotify/inotify.factor
similarity index 87%
rename from extra/unix/linux/inotify/inotify.factor
rename to basis/unix/linux/inotify/inotify.factor
index b7b721efc7..3385e454d2 100644
--- a/extra/unix/linux/inotify/inotify.factor
+++ b/basis/unix/linux/inotify/inotify.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien.syntax math math.bitfields ;
+USING: alien.syntax math math.bitwise ;
 IN: unix.linux.inotify
 
 C-STRUCT: inotify-event
@@ -28,8 +28,8 @@ C-STRUCT: inotify-event
 : IN_Q_OVERFLOW HEX: 4000 ; inline  ! Event queued overflowed
 : IN_IGNORED HEX: 8000 ; inline     ! File was ignored
 
-: IN_CLOSE IN_CLOSE_WRITE IN_CLOSE_NOWRITE bitor ; inline ! close
-: IN_MOVE IN_MOVED_FROM IN_MOVED_TO bitor ; inline        ! moves
+: IN_CLOSE ( -- n ) IN_CLOSE_WRITE IN_CLOSE_NOWRITE bitor ; inline ! close
+: IN_MOVE ( -- n ) IN_MOVED_FROM IN_MOVED_TO bitor ; inline        ! moves
 
 : IN_ONLYDIR HEX: 1000000 ; inline     ! only watch the path if it is a directory
 : IN_DONT_FOLLOW HEX: 2000000 ; inline ! don't follow a sym link
@@ -37,14 +37,14 @@ C-STRUCT: inotify-event
 : IN_ISDIR HEX: 40000000 ; inline      ! event occurred against dir
 : IN_ONESHOT HEX: 80000000 ; inline    ! only send event once
 
-: IN_CHANGE_EVENTS
+: IN_CHANGE_EVENTS ( -- n )
     {
         IN_MODIFY IN_ATTRIB IN_MOVED_FROM
         IN_MOVED_TO IN_DELETE IN_CREATE IN_DELETE_SELF
         IN_MOVE_SELF
     } flags ; foldable
 
-: IN_ALL_EVENTS
+: IN_ALL_EVENTS ( -- n )
     {
         IN_ACCESS IN_MODIFY IN_ATTRIB IN_CLOSE_WRITE
         IN_CLOSE_NOWRITE IN_OPEN IN_MOVED_FROM
diff --git a/basis/unix/linux/inotify/tags.txt b/basis/unix/linux/inotify/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/inotify/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/linux/linux.factor b/basis/unix/linux/linux.factor
similarity index 93%
rename from extra/unix/linux/linux.factor
rename to basis/unix/linux/linux.factor
index 0efacee294..0c08cf0f2b 100755
--- a/extra/unix/linux/linux.factor
+++ b/basis/unix/linux/linux.factor
@@ -7,13 +7,16 @@ USING: alien.syntax ;
 
 : MAXPATHLEN 1024 ; inline
 
-: O_RDONLY  HEX: 0000 ; inline
-: O_WRONLY  HEX: 0001 ; inline
-: O_RDWR    HEX: 0002 ; inline
-: O_CREAT   HEX: 0040 ; inline
-: O_EXCL    HEX: 0080 ; inline
-: O_TRUNC   HEX: 0200 ; inline
-: O_APPEND  HEX: 0400 ; inline
+: O_RDONLY   HEX: 0000 ; inline
+: O_WRONLY   HEX: 0001 ; inline
+: O_RDWR     HEX: 0002 ; inline
+: O_CREAT    HEX: 0040 ; inline
+: O_EXCL     HEX: 0080 ; inline
+: O_NOCTTY   HEX: 0100 ; inline
+: O_TRUNC    HEX: 0200 ; inline
+: O_APPEND   HEX: 0400 ; inline
+: O_NONBLOCK HEX: 0800 ; inline
+: O_NDELAY O_NONBLOCK ; inline
 
 : SOL_SOCKET 1 ; inline
 
@@ -28,7 +31,6 @@ USING: alien.syntax ;
 : FD_CLOEXEC 1 ; inline
 
 : F_SETFL 4 ; inline
-: O_NONBLOCK HEX: 800 ; inline
 
 C-STRUCT: addrinfo
     { "int" "flags" }
diff --git a/extra/lsys/strings/authors.txt b/basis/unix/linux/route/authors.txt
similarity index 100%
rename from extra/lsys/strings/authors.txt
rename to basis/unix/linux/route/authors.txt
diff --git a/extra/unix/linux/route/route.factor b/basis/unix/linux/route/route.factor
similarity index 100%
rename from extra/unix/linux/route/route.factor
rename to basis/unix/linux/route/route.factor
diff --git a/basis/unix/linux/route/tags.txt b/basis/unix/linux/route/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/route/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/lsys/strings/interpret/authors.txt b/basis/unix/linux/sockios/authors.txt
similarity index 100%
rename from extra/lsys/strings/interpret/authors.txt
rename to basis/unix/linux/sockios/authors.txt
diff --git a/extra/unix/linux/sockios/sockios.factor b/basis/unix/linux/sockios/sockios.factor
similarity index 100%
rename from extra/unix/linux/sockios/sockios.factor
rename to basis/unix/linux/sockios/sockios.factor
diff --git a/basis/unix/linux/sockios/tags.txt b/basis/unix/linux/sockios/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/sockios/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/lsys/strings/rewrite/authors.txt b/basis/unix/linux/swap/authors.txt
similarity index 100%
rename from extra/lsys/strings/rewrite/authors.txt
rename to basis/unix/linux/swap/authors.txt
diff --git a/extra/unix/linux/swap/swap.factor b/basis/unix/linux/swap/swap.factor
similarity index 100%
rename from extra/unix/linux/swap/swap.factor
rename to basis/unix/linux/swap/swap.factor
diff --git a/basis/unix/linux/swap/tags.txt b/basis/unix/linux/swap/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/swap/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/unix/linux/tags.txt b/basis/unix/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/lsys/tortoise/authors.txt b/basis/unix/process/authors.txt
similarity index 100%
rename from extra/lsys/tortoise/authors.txt
rename to basis/unix/process/authors.txt
diff --git a/extra/unix/process/process.factor b/basis/unix/process/process.factor
similarity index 95%
rename from extra/unix/process/process.factor
rename to basis/unix/process/process.factor
index 644276ef7d..7d3d757705 100755
--- a/extra/unix/process/process.factor
+++ b/basis/unix/process/process.factor
@@ -37,7 +37,8 @@ FUNCTION: int execve ( char* path, char** argv, char** envp ) ;
     >r [ first ] [ ] bi r> exec-with-env ;
 
 : with-fork ( child parent -- )
-    fork-process dup zero? -roll swap curry if ; inline
+    [ [ fork-process dup zero? ] dip [ drop ] prepose ] dip
+    if ; inline
 
 : SIGKILL 9 ; inline
 : SIGTERM 15 ; inline
diff --git a/basis/unix/process/tags.txt b/basis/unix/process/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/process/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/kqueue/authors.txt b/basis/unix/solaris/authors.txt
similarity index 100%
rename from extra/unix/kqueue/authors.txt
rename to basis/unix/solaris/authors.txt
diff --git a/extra/unix/solaris/solaris.factor b/basis/unix/solaris/solaris.factor
similarity index 100%
rename from extra/unix/solaris/solaris.factor
rename to basis/unix/solaris/solaris.factor
diff --git a/basis/unix/solaris/tags.txt b/basis/unix/solaris/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/solaris/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/freebsd/32/32.factor b/basis/unix/stat/freebsd/32/32.factor
similarity index 100%
rename from extra/unix/stat/freebsd/32/32.factor
rename to basis/unix/stat/freebsd/32/32.factor
diff --git a/basis/unix/stat/freebsd/32/tags.txt b/basis/unix/stat/freebsd/32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/freebsd/32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/freebsd/64/64.factor b/basis/unix/stat/freebsd/64/64.factor
similarity index 100%
rename from extra/unix/stat/freebsd/64/64.factor
rename to basis/unix/stat/freebsd/64/64.factor
diff --git a/basis/unix/stat/freebsd/64/tags.txt b/basis/unix/stat/freebsd/64/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/freebsd/64/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/freebsd/freebsd.factor b/basis/unix/stat/freebsd/freebsd.factor
similarity index 100%
rename from extra/unix/stat/freebsd/freebsd.factor
rename to basis/unix/stat/freebsd/freebsd.factor
diff --git a/basis/unix/stat/freebsd/tags.txt b/basis/unix/stat/freebsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/freebsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/linux/32/32.factor b/basis/unix/stat/linux/32/32.factor
similarity index 100%
rename from extra/unix/stat/linux/32/32.factor
rename to basis/unix/stat/linux/32/32.factor
diff --git a/basis/unix/stat/linux/32/tags.txt b/basis/unix/stat/linux/32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/linux/32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/linux/64/64.factor b/basis/unix/stat/linux/64/64.factor
similarity index 100%
rename from extra/unix/stat/linux/64/64.factor
rename to basis/unix/stat/linux/64/64.factor
diff --git a/basis/unix/stat/linux/64/tags.txt b/basis/unix/stat/linux/64/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/linux/64/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/linux/linux.factor b/basis/unix/stat/linux/linux.factor
similarity index 100%
rename from extra/unix/stat/linux/linux.factor
rename to basis/unix/stat/linux/linux.factor
diff --git a/basis/unix/stat/linux/tags.txt b/basis/unix/stat/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/macosx/macosx.factor b/basis/unix/stat/macosx/macosx.factor
similarity index 82%
rename from extra/unix/stat/macosx/macosx.factor
rename to basis/unix/stat/macosx/macosx.factor
index 552547442a..4d84e38399 100644
--- a/extra/unix/stat/macosx/macosx.factor
+++ b/basis/unix/stat/macosx/macosx.factor
@@ -28,6 +28,6 @@ C-STRUCT: stat
 FUNCTION: int stat  ( char* pathname, stat* buf ) ;
 FUNCTION: int lstat ( char* pathname, stat* buf ) ;
 
-: stat-st_atim stat-st_atimespec ;
-: stat-st_mtim stat-st_mtimespec ;
-: stat-st_ctim stat-st_ctimespec ;
+: stat-st_atim ( stat -- timespec ) stat-st_atimespec ;
+: stat-st_mtim ( stat -- timespec ) stat-st_mtimespec ;
+: stat-st_ctim ( stat -- timespec ) stat-st_ctimespec ;
diff --git a/basis/unix/stat/macosx/tags.txt b/basis/unix/stat/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/netbsd/32/32.factor b/basis/unix/stat/netbsd/32/32.factor
similarity index 87%
rename from extra/unix/stat/netbsd/32/32.factor
rename to basis/unix/stat/netbsd/32/32.factor
index d4b39a90d1..55f5108c70 100644
--- a/extra/unix/stat/netbsd/32/32.factor
+++ b/basis/unix/stat/netbsd/32/32.factor
@@ -25,5 +25,5 @@ C-STRUCT: stat
 FUNCTION: int __stat30  ( char* pathname, stat* buf ) ;
 FUNCTION: int __lstat30 ( char* pathname, stat* buf ) ;
 
-: stat __stat30 ;
-: lstat __lstat30 ;
+: stat ( pathname buf -- n ) __stat30 ; inline
+: lstat ( pathname buf -- n ) __lstat30 ; inline
diff --git a/basis/unix/stat/netbsd/32/tags.txt b/basis/unix/stat/netbsd/32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/netbsd/32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/netbsd/64/64.factor b/basis/unix/stat/netbsd/64/64.factor
similarity index 87%
rename from extra/unix/stat/netbsd/64/64.factor
rename to basis/unix/stat/netbsd/64/64.factor
index 46ab43eeca..163695b524 100644
--- a/extra/unix/stat/netbsd/64/64.factor
+++ b/basis/unix/stat/netbsd/64/64.factor
@@ -25,5 +25,5 @@ C-STRUCT: stat
 FUNCTION: int __stat13 ( char* pathname, stat* buf ) ;
 FUNCTION: int __lstat13 ( char* pathname, stat* buf ) ;
 
-: stat __stat13 ; inline
-: lstat __lstat13 ; inline
+: stat ( pathname buf -- n ) __stat13 ; inline
+: lstat ( pathname buf -- n ) __lstat13 ; inline
diff --git a/basis/unix/stat/netbsd/64/tags.txt b/basis/unix/stat/netbsd/64/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/netbsd/64/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/netbsd/netbsd.factor b/basis/unix/stat/netbsd/netbsd.factor
similarity index 100%
rename from extra/unix/stat/netbsd/netbsd.factor
rename to basis/unix/stat/netbsd/netbsd.factor
diff --git a/basis/unix/stat/netbsd/tags.txt b/basis/unix/stat/netbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/netbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/openbsd/openbsd.factor b/basis/unix/stat/openbsd/openbsd.factor
similarity index 100%
rename from extra/unix/stat/openbsd/openbsd.factor
rename to basis/unix/stat/openbsd/openbsd.factor
diff --git a/basis/unix/stat/openbsd/tags.txt b/basis/unix/stat/openbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/openbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/stat/stat.factor b/basis/unix/stat/stat.factor
similarity index 100%
rename from extra/unix/stat/stat.factor
rename to basis/unix/stat/stat.factor
diff --git a/basis/unix/stat/tags.txt b/basis/unix/stat/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/stat/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/summary.txt b/basis/unix/summary.txt
similarity index 100%
rename from extra/unix/summary.txt
rename to basis/unix/summary.txt
diff --git a/basis/unix/tags.txt b/basis/unix/tags.txt
new file mode 100644
index 0000000000..2320bdd648
--- /dev/null
+++ b/basis/unix/tags.txt
@@ -0,0 +1,2 @@
+unportable
+bindings
diff --git a/basis/unix/time/tags.txt b/basis/unix/time/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/time/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/time/time.factor b/basis/unix/time/time.factor
similarity index 89%
rename from extra/unix/time/time.factor
rename to basis/unix/time/time.factor
index 460631d9ea..4fbb20dca0 100644
--- a/extra/unix/time/time.factor
+++ b/basis/unix/time/time.factor
@@ -29,4 +29,5 @@ C-STRUCT: timespec
     [ set-timespec-sec ] keep ;
 
 FUNCTION: time_t time ( time_t* t ) ;
-FUNCTION: tm* localtime ( time_t* clock ) ;
\ No newline at end of file
+FUNCTION: tm* localtime ( time_t* clock ) ;
+FUNCTION: int gettimeofday ( timespec* TP, void* TZP ) ;
diff --git a/extra/unix/types/freebsd/freebsd.factor b/basis/unix/types/freebsd/freebsd.factor
similarity index 85%
rename from extra/unix/types/freebsd/freebsd.factor
rename to basis/unix/types/freebsd/freebsd.factor
index 6e01ae9fd5..e012ebcbd6 100755
--- a/extra/unix/types/freebsd/freebsd.factor
+++ b/basis/unix/types/freebsd/freebsd.factor
@@ -4,8 +4,6 @@ IN: unix.types
 
 ! FreeBSD 7 x86.32
 
-! Need to verify on 64-bit
-
 TYPEDEF: ushort          __uint16_t
 TYPEDEF: uint           __uint32_t
 TYPEDEF: int            __int32_t
@@ -21,6 +19,6 @@ TYPEDEF: __int64_t      off_t
 TYPEDEF: __int64_t      blkcnt_t
 TYPEDEF: __uint32_t     blksize_t
 TYPEDEF: __uint32_t     fflags_t
-TYPEDEF: int            ssize_t
+TYPEDEF: long           ssize_t
 TYPEDEF: int            pid_t
-TYPEDEF: int            time_t
\ No newline at end of file
+TYPEDEF: int            time_t
diff --git a/basis/unix/types/freebsd/tags.txt b/basis/unix/types/freebsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/freebsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/linux/linux.factor b/basis/unix/types/linux/linux.factor
similarity index 100%
rename from extra/unix/types/linux/linux.factor
rename to basis/unix/types/linux/linux.factor
diff --git a/basis/unix/types/linux/tags.txt b/basis/unix/types/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/macosx/macosx.factor b/basis/unix/types/macosx/macosx.factor
similarity index 100%
rename from extra/unix/types/macosx/macosx.factor
rename to basis/unix/types/macosx/macosx.factor
diff --git a/basis/unix/types/macosx/tags.txt b/basis/unix/types/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/netbsd/32/32.factor b/basis/unix/types/netbsd/32/32.factor
similarity index 100%
rename from extra/unix/types/netbsd/32/32.factor
rename to basis/unix/types/netbsd/32/32.factor
diff --git a/basis/unix/types/netbsd/32/tags.txt b/basis/unix/types/netbsd/32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/netbsd/32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/netbsd/64/64.factor b/basis/unix/types/netbsd/64/64.factor
similarity index 100%
rename from extra/unix/types/netbsd/64/64.factor
rename to basis/unix/types/netbsd/64/64.factor
diff --git a/basis/unix/types/netbsd/64/tags.txt b/basis/unix/types/netbsd/64/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/netbsd/64/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/netbsd/netbsd.factor b/basis/unix/types/netbsd/netbsd.factor
similarity index 100%
rename from extra/unix/types/netbsd/netbsd.factor
rename to basis/unix/types/netbsd/netbsd.factor
diff --git a/basis/unix/types/netbsd/tags.txt b/basis/unix/types/netbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/netbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/openbsd/openbsd.factor b/basis/unix/types/openbsd/openbsd.factor
similarity index 96%
rename from extra/unix/types/openbsd/openbsd.factor
rename to basis/unix/types/openbsd/openbsd.factor
index 5bdda212d8..a07e6f1c6a 100755
--- a/extra/unix/types/openbsd/openbsd.factor
+++ b/basis/unix/types/openbsd/openbsd.factor
@@ -27,6 +27,6 @@ TYPEDEF: __int64_t      off_t
 TYPEDEF: __int64_t      blkcnt_t
 TYPEDEF: __uint32_t     blksize_t
 TYPEDEF: __uint32_t     fflags_t
-TYPEDEF: int            ssize_t
+TYPEDEF: long           ssize_t
 TYPEDEF: int            pid_t
 TYPEDEF: int            time_t
diff --git a/basis/unix/types/openbsd/tags.txt b/basis/unix/types/openbsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/openbsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/unix/types/tags.txt b/basis/unix/types/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/unix/types/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/unix/types/types.factor b/basis/unix/types/types.factor
similarity index 100%
rename from extra/unix/types/types.factor
rename to basis/unix/types/types.factor
diff --git a/extra/unix/unix.factor b/basis/unix/unix.factor
similarity index 99%
rename from extra/unix/unix.factor
rename to basis/unix/unix.factor
index 07eb2950fa..2011fa0dcb 100755
--- a/extra/unix/unix.factor
+++ b/basis/unix/unix.factor
@@ -4,7 +4,7 @@
 USING: alien alien.c-types alien.syntax kernel libc structs sequences
        continuations byte-arrays strings
        math namespaces system combinators vocabs.loader qualified
-       accessors inference macros locals shuffle arrays.lib 
+       accessors stack-checker macros locals generalizations 
        unix.types debugger io prettyprint ;
 
 IN: unix
@@ -192,4 +192,3 @@ FUNCTION: ssize_t write ( int fd, void* buf, size_t nbytes ) ;
     { [ os bsd? ] [ "unix.bsd" require ] }
     { [ os solaris? ] [ "unix.solaris" require ] }
 } cond
-
diff --git a/extra/unix/linux/authors.txt b/basis/urls/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/unix/linux/authors.txt
rename to basis/urls/authors.txt
diff --git a/extra/urls/summary.txt b/basis/urls/summary.txt
similarity index 100%
rename from extra/urls/summary.txt
rename to basis/urls/summary.txt
diff --git a/extra/urls/tags.txt b/basis/urls/tags.txt
similarity index 100%
rename from extra/urls/tags.txt
rename to basis/urls/tags.txt
diff --git a/basis/urls/urls-tests.factor b/basis/urls/urls-tests.factor
new file mode 100644
index 0000000000..7f835b2918
--- /dev/null
+++ b/basis/urls/urls-tests.factor
@@ -0,0 +1,227 @@
+IN: urls.tests
+USING: urls urls.private tools.test
+arrays kernel assocs present accessors ;
+
+[ "hello%20world" ] [ "hello world" url-encode ] unit-test
+[ "hello world" ] [ "hello%20world" url-decode ] unit-test
+[ "~hello world" ] [ "%7ehello+world" url-decode ] unit-test
+[ f ] [ "%XX%XX%XX" url-decode ] unit-test
+[ f ] [ "%XX%XX%X" url-decode ] unit-test
+
+[ "hello world"   ] [ "hello+world"    url-decode ] unit-test
+[ "hello world"   ] [ "hello%20world"  url-decode ] unit-test
+[ " ! "           ] [ "%20%21%20"      url-decode ] unit-test
+[ "hello world"   ] [ "hello world%"   url-decode ] unit-test
+[ "hello world"   ] [ "hello world%x"  url-decode ] unit-test
+[ "hello%20world" ] [ "hello world"    url-encode ] unit-test
+[ "%20%21%20"     ] [ " ! "            url-encode ] unit-test
+
+[ "\u001234hi\u002045" ] [ "\u001234hi\u002045" url-encode url-decode ] unit-test
+
+[ "a=b&a=c" ] [ { { "a" { "b" "c" } } } assoc>query ] unit-test
+
+[ H{ { "a" "b" } } ] [ "a=b" query>assoc ] unit-test
+
+[ H{ { "a" { "b" "c" } } } ] [ "a=b&a=c" query>assoc ] unit-test
+
+[ "a=3" ] [ { { "a" 3 } } assoc>query ] unit-test
+
+: urls
+    {
+        {
+            T{ url
+                { protocol "http" }
+                { host "www.apple.com" }
+                { port 1234 }
+                { path "/a/path" }
+                { query H{ { "a" "b" } } }
+                { anchor "foo" }
+            }
+            "http://www.apple.com:1234/a/path?a=b#foo"
+        }
+        {
+            T{ url
+                { protocol "http" }
+                { host "www.apple.com" }
+                { path "/a/path" }
+                { query H{ { "a" "b" } } }
+                { anchor "foo" }
+            }
+            "http://www.apple.com/a/path?a=b#foo"
+        }
+        {
+            T{ url
+                { protocol "http" }
+                { host "www.apple.com" }
+                { port 1234 }
+                { path "/another/fine/path" }
+                { anchor "foo" }
+            }
+            "http://www.apple.com:1234/another/fine/path#foo"
+        }
+        {
+            T{ url
+                { path "/a/relative/path" }
+                { anchor "foo" }
+            }
+            "/a/relative/path#foo"
+        }
+        {
+            T{ url
+                { path "/a/relative/path" }
+            }
+            "/a/relative/path"
+        }
+        {
+            T{ url
+                { path "a/relative/path" }
+            }
+            "a/relative/path"
+        }
+        {
+            T{ url
+                { path "bar" }
+                { query H{ { "a" "b" } } }
+            }
+            "bar?a=b"
+        }
+        {
+            T{ url
+                { protocol "ftp" }
+                { host "ftp.kernel.org" }
+                { username "slava" }
+                { path "/" }
+            }
+            "ftp://slava@ftp.kernel.org/"
+        }
+        {
+            T{ url
+                { protocol "ftp" }
+                { host "ftp.kernel.org" }
+                { username "slava" }
+                { password "secret" }
+                { path "/" }
+            }
+            "ftp://slava:secret@ftp.kernel.org/"
+        }
+    } ;
+
+urls [
+    [ 1array ] [ [ >url ] curry ] bi* unit-test
+] assoc-each
+
+urls [
+    swap [ 1array ] [ [ present ] curry ] bi* unit-test
+] assoc-each
+
+[ "b" ] [ "a" "b" url-append-path ] unit-test
+
+[ "a/b" ] [ "a/c" "b" url-append-path ] unit-test
+
+[ "a/b" ] [ "a/" "b" url-append-path ] unit-test
+
+[ "/b" ] [ "a" "/b" url-append-path ] unit-test
+
+[ "/b" ] [ "a/b/" "/b" url-append-path ] unit-test
+
+[ "/xxx/bar" ] [ "/xxx/baz" "bar" url-append-path ] unit-test
+
+[
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { port 1234 }
+        { path "/a/path" }
+    }
+] [
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { port 1234 }
+        { path "/foo" }
+    }
+
+    T{ url
+        { path "/a/path" }
+    }
+
+    derive-url
+] unit-test
+
+[
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { port 1234 }
+        { path "/a/path/relative/path" }
+        { query H{ { "a" "b" } } }
+        { anchor "foo" }
+    }
+] [
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { port 1234 }
+        { path "/a/path/" }
+    }
+
+    T{ url
+        { path "relative/path" }
+        { query H{ { "a" "b" } } }
+        { anchor "foo" }
+    }
+
+    derive-url
+] unit-test
+
+[
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { port 1234 }
+        { path "/a/path/relative/path" }
+        { query H{ { "a" "b" } } }
+        { anchor "foo" }
+    }
+] [
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { port 1234 }
+        { path "/a/path/" }
+    }
+
+    T{ url
+        { path "relative/path" }
+        { query H{ { "a" "b" } } }
+        { anchor "foo" }
+    }
+
+    derive-url
+] unit-test
+
+[
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { path "/xxx/baz" }
+    }
+] [
+    T{ url
+        { protocol "http" }
+        { host "www.apple.com" }
+        { path "/xxx/bar" }
+    }
+
+    T{ url
+        { path "baz" }
+    }
+
+    derive-url
+] unit-test
+
+[ "a" ] [
+    <url> "a" "b" set-query-param "b" query-param
+] unit-test
+
+[ "foo#3" ] [ URL" foo" clone 3 >>anchor present ] unit-test
diff --git a/extra/urls/urls.factor b/basis/urls/urls.factor
similarity index 78%
rename from extra/urls/urls.factor
rename to basis/urls/urls.factor
index 5c89205d5b..299f305371 100644
--- a/extra/urls/urls.factor
+++ b/basis/urls/urls.factor
@@ -1,32 +1,37 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel unicode.categories combinators sequences splitting
-fry namespaces assocs arrays strings io.sockets
-io.sockets.secure io.encodings.string io.encodings.utf8
-math math.parser accessors mirrors parser
-prettyprint.backend hashtables ;
+USING: kernel ascii combinators combinators.short-circuit
+sequences splitting fry namespaces assocs arrays strings
+io.sockets io.sockets.secure io.encodings.string
+io.encodings.utf8 math math.parser accessors parser
+strings.parser lexer prettyprint.backend hashtables present ;
 IN: urls
 
 : url-quotable? ( ch -- ? )
     #! In a URL, can this character be used without
     #! URL-encoding?
     {
-        { [ dup letter? ] [ t ] }
-        { [ dup LETTER? ] [ t ] }
-        { [ dup digit? ] [ t ] }
-        { [ dup "/_-.:" member? ] [ t ] }
-        [ f ]
-    } cond nip ; foldable
+        [ letter? ]
+        [ LETTER? ]
+        [ digit? ]
+        [ "/_-." member? ]
+    } 1|| ; foldable
+
+<PRIVATE
 
 : push-utf8 ( ch -- )
     1string utf8 encode
     [ CHAR: % , >hex 2 CHAR: 0 pad-left % ] each ;
 
+PRIVATE>
+
 : url-encode ( str -- str )
     [
         [ dup url-quotable? [ , ] [ push-utf8 ] if ] each
     ] "" make ;
 
+<PRIVATE
+
 : url-decode-hex ( index str -- )
     2dup length 2 - >= [
         2drop
@@ -51,9 +56,13 @@ IN: urls
         ] if url-decode-iter
     ] if ;
 
+PRIVATE>
+
 : url-decode ( str -- str )
     [ 0 swap url-decode-iter ] "" make utf8 decode ;
 
+<PRIVATE
+
 : add-query-param ( value key assoc -- )
     [
         at [
@@ -65,6 +74,8 @@ IN: urls
         ] when*
     ] 2keep set-at ;
 
+PRIVATE>
+
 : query>assoc ( query -- assoc )
     dup [
         "&" split H{ } clone [
@@ -77,11 +88,7 @@ IN: urls
 
 : assoc>query ( hash -- str )
     [
-        {
-            { [ dup number? ] [ number>string 1array ] }
-            { [ dup string? ] [ 1array ] }
-            { [ dup sequence? ] [ ] }
-        } cond
+        dup array? [ [ present ] map ] [ present 1array ] if
     ] assoc-map
     [
         [
@@ -108,6 +115,8 @@ TUPLE: url protocol username password host port path query anchor ;
         ] when
     ] bi* ;
 
+<PRIVATE
+
 : parse-host-part ( url protocol rest -- url string' )
     [ >>protocol ] [
         "//" ?head [ "Invalid URL" throw ] unless
@@ -121,8 +130,12 @@ TUPLE: url protocol username password host port path query anchor ;
         ] [ "/" prepend ] bi*
     ] bi* ;
 
+PRIVATE>
+
 GENERIC: >url ( obj -- url )
 
+M: f >url drop <url> ;
+
 M: url >url ;
 
 M: string >url
@@ -135,6 +148,8 @@ M: string >url
     ]
     [ url-decode >>anchor ] bi* ;
 
+<PRIVATE
+
 : unparse-username-password ( url -- )
     dup username>> dup [
         % password>> [ ":" % % ] when* "@" %
@@ -150,13 +165,13 @@ M: string >url
         [ path>> "/" head? [ "/" % ] unless ]
     } cleave ;
 
-: url>string ( url -- string )
+M: url present
     [
         {
             [ dup protocol>> dup [ unparse-host-part ] [ 2drop ] if ]
             [ path>> url-encode % ]
             [ query>> dup assoc-empty? [ drop ] [ "?" % assoc>query % ] if ]
-            [ anchor>> [ "#" % url-encode % ] when* ]
+            [ anchor>> [ "#" % present url-encode % ] when* ]
         } cleave
     ] "" make ;
 
@@ -169,14 +184,25 @@ M: string >url
         [ [ "/" last-split1 drop "/" ] dip 3append ]
     } cond ;
 
+PRIVATE>
+
 : derive-url ( base url -- url' )
-    [ clone dup ] dip
-    2dup [ path>> ] bi@ url-append-path
-    [ [ <mirror> ] bi@ [ nip ] assoc-filter update ] dip
-    >>path ;
+    [ clone ] dip over {
+        [ [ protocol>> ] either? >>protocol ]
+        [ [ username>> ] either? >>username ]
+        [ [ password>> ] either? >>password ]
+        [ [ host>>     ] either? >>host ]
+        [ [ port>>     ] either? >>port ]
+        [ [ path>>     ] bi@ swap url-append-path >>path ]
+        [ [ query>>    ] either? >>query ]
+        [ [ anchor>>   ] either? >>anchor ]
+    } 2cleave ;
 
 : relative-url ( url -- url' )
-    clone f >>protocol f >>host f >>port ;
+    clone
+        f >>protocol
+        f >>host
+        f >>port ;
 
 ! Half-baked stuff follows
 : secure-protocol? ( protocol -- ? )
@@ -199,4 +225,4 @@ M: string >url
 ! Literal syntax
 : URL" lexer get skip-blank parse-string >url parsed ; parsing
 
-M: url pprint* dup url>string "URL\" " "\"" pprint-string ;
+M: url pprint* dup present "URL\" " "\"" pprint-string ;
diff --git a/extra/validators/validators-tests.factor b/basis/validators/validators-tests.factor
similarity index 52%
rename from extra/validators/validators-tests.factor
rename to basis/validators/validators-tests.factor
index 7d4325cbb6..bd24323f20 100644
--- a/extra/validators/validators-tests.factor
+++ b/basis/validators/validators-tests.factor
@@ -2,14 +2,6 @@ IN: validators.tests
 USING: kernel sequences tools.test validators accessors
 namespaces assocs ;
 
-: with-validation ( quot -- messages )
-    [
-        init-validation
-        call
-        validation-messages get
-        named-validation-messages get >alist append
-    ] with-scope ; inline
-
 [ "" v-one-line ] must-fail
 [ "hello world" ] [ "hello world" v-one-line ] unit-test
 [ "hello\nworld" v-one-line ] must-fail
@@ -60,59 +52,3 @@ namespaces assocs ;
 [ "4561_2612_1234_5467" v-credit-card ] must-fail
 
 [ "4561-2621-1234-5467" v-credit-card ] must-fail
-
-
-[ 14 V{ } ] [
-    [
-        "14" "age" [ v-number 13 v-min-value 100 v-max-value ] validate
-    ] with-validation
-] unit-test
-
-[ f t ] [
-    [
-        "140" "age" [ v-number 13 v-min-value 100 v-max-value ] validate
-    ] with-validation first
-    [ first "age" = ]
-    [ second validation-error? ]
-    [ second value>> "140" = ]
-    tri and and
-] unit-test
-
-TUPLE: person name age ;
-
-person {
-    { "name" [ ] }
-    { "age" [ v-number 13 v-min-value 100 v-max-value ] }
-} define-validators
-
-[ t t ] [
-    [
-        { { "age" "" } } required-values
-        validation-failed?
-    ] with-validation first
-    [ first "age" = ]
-    [ second validation-error? ]
-    [ second message>> "required" = ]
-    tri and and
-] unit-test
-
-[ H{ { "a" 123 } } f V{ } ] [
-    [
-        H{
-            { "a" "123" }
-            { "b" "c" }
-            { "c" "d" }
-        }
-        H{
-            { "a" [ v-integer ] }
-        } validate-values
-        validation-failed?
-    ] with-validation
-] unit-test
-
-[ t "foo" ] [
-    [
-        "foo" validation-error
-        validation-failed?
-    ] with-validation first message>>
-] unit-test
diff --git a/extra/validators/validators.factor b/basis/validators/validators.factor
similarity index 61%
rename from extra/validators/validators.factor
rename to basis/validators/validators.factor
index aeb2dc2f80..b786ef5529 100644
--- a/extra/validators/validators.factor
+++ b/basis/validators/validators.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2006, 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel continuations sequences sequences.lib math
-namespaces sets math.parser math.ranges assocs regexp fry
-unicode.categories arrays hashtables words combinators mirrors
+USING: kernel continuations sequences math
+namespaces sets math.parser math.ranges assocs regexp
+unicode.categories arrays hashtables words
 classes quotations xmode.catalog ;
 IN: validators
 
@@ -107,53 +107,3 @@ IN: validators
     ] [
         "invalid credit card number format" throw
     ] if ;
-
-SYMBOL: validation-messages
-SYMBOL: named-validation-messages
-
-: init-validation ( -- )
-    V{ } clone validation-messages set
-    H{ } clone named-validation-messages set ;
-
-: (validation-message) ( obj -- )
-    validation-messages get push ;
-
-: (validation-message-for) ( obj name -- )
-    named-validation-messages get set-at ;
-
-TUPLE: validation-message message ;
-
-C: <validation-message> validation-message
-
-: validation-message ( string -- )
-    <validation-message> (validation-message) ;
-
-: validation-message-for ( string name -- )
-    [ <validation-message> ] dip (validation-message-for) ;
-
-TUPLE: validation-error message value ;
-
-C: <validation-error> validation-error
-
-: validation-error ( message -- )
-    f <validation-error> (validation-message) ;
-
-: validation-error-for ( message value name -- )
-    [ <validation-error> ] dip (validation-message-for) ;
-
-: validation-failed? ( -- ? )
-    validation-messages get [ validation-error? ] contains?
-    named-validation-messages get [ nip validation-error? ] assoc-contains?
-    or ;
-
-: define-validators ( class validators -- )
-    >hashtable "validators" set-word-prop ;
-
-: validate ( value name quot -- result )
-    '[ drop @ ] [ -rot validation-error-for f ] recover ; inline
-
-: required-values ( assoc -- )
-    [ swap [ v-required ] validate drop ] assoc-each ;
-
-: validate-values ( assoc validators -- assoc' )
-    swap '[ [ [ dup , at ] keep ] dip validate ] assoc-map ;
diff --git a/extra/values/authors.txt b/basis/values/authors.txt
similarity index 100%
rename from extra/values/authors.txt
rename to basis/values/authors.txt
diff --git a/extra/values/summary.txt b/basis/values/summary.txt
similarity index 100%
rename from extra/values/summary.txt
rename to basis/values/summary.txt
diff --git a/extra/values/tags.txt b/basis/values/tags.txt
similarity index 100%
rename from extra/values/tags.txt
rename to basis/values/tags.txt
diff --git a/extra/values/values-docs.factor b/basis/values/values-docs.factor
similarity index 100%
rename from extra/values/values-docs.factor
rename to basis/values/values-docs.factor
diff --git a/extra/values/values-tests.factor b/basis/values/values-tests.factor
similarity index 100%
rename from extra/values/values-tests.factor
rename to basis/values/values-tests.factor
diff --git a/basis/values/values.factor b/basis/values/values.factor
new file mode 100755
index 0000000000..7f19898b18
--- /dev/null
+++ b/basis/values/values.factor
@@ -0,0 +1,15 @@
+USING: accessors kernel parser sequences words effects ;
+IN: values
+
+: VALUE:
+    CREATE-WORD { f } clone [ first ] curry
+    (( -- value )) define-declared ; parsing
+
+: set-value ( value word -- )
+    def>> first set-first ;
+
+: get-value ( word -- value )
+    def>> first first ;
+
+: change-value ( word quot -- )
+    over >r >r get-value r> call r> set-value ; inline
diff --git a/extra/windows/advapi32/advapi32.factor b/basis/windows/advapi32/advapi32.factor
old mode 100644
new mode 100755
similarity index 98%
rename from extra/windows/advapi32/advapi32.factor
rename to basis/windows/advapi32/advapi32.factor
index 0d2f164c8d..251b59a4d8
--- a/extra/windows/advapi32/advapi32.factor
+++ b/basis/windows/advapi32/advapi32.factor
@@ -1,4 +1,4 @@
-USING: alien.syntax kernel math windows.types math.bitfields ;
+USING: alias alien.syntax kernel math windows.types math.bitwise ;
 IN: windows.advapi32
 LIBRARY: advapi32
 
@@ -164,9 +164,9 @@ TYPEDEF: ACCESS_ALLOWED_CALLBACK_ACE* PACCESS_ALLOWED_CALLBACK_ACE
 : TOKEN_QUERY                  HEX: 0008 ; inline
 : TOKEN_QUERY_SOURCE           HEX: 0010 ; inline
 : TOKEN_ADJUST_DEFAULT         HEX: 0080 ; inline
-: TOKEN_READ STANDARD_RIGHTS_READ TOKEN_QUERY bitor ;
+: TOKEN_READ ( -- n ) STANDARD_RIGHTS_READ TOKEN_QUERY bitor ;
 
-: TOKEN_WRITE
+: TOKEN_WRITE ( -- n )
     {
         STANDARD_RIGHTS_WRITE
         TOKEN_ADJUST_PRIVILEGES
@@ -174,7 +174,7 @@ TYPEDEF: ACCESS_ALLOWED_CALLBACK_ACE* PACCESS_ALLOWED_CALLBACK_ACE
         TOKEN_ADJUST_DEFAULT
     } flags ; foldable
 
-: TOKEN_ALL_ACCESS
+: TOKEN_ALL_ACCESS ( -- n )
     {
         STANDARD_RIGHTS_REQUIRED
         TOKEN_ASSIGN_PRIMARY
@@ -336,7 +336,8 @@ FUNCTION: BOOL CryptAcquireContextW ( HCRYPTPROV* phProv,
                                       DWORD dwProvType,
                                       DWORD dwFlags ) ;
 
-: CryptAcquireContext CryptAcquireContextW ;
+ALIAS: CryptAcquireContext CryptAcquireContextW
+
 ! : CryptContextAddRef ;
 ! : CryptCreateHash ;
 ! : CryptDecrypt ;
@@ -496,7 +497,7 @@ FUNCTION: BOOL CryptReleaseContext ( HCRYPTPROV hProv, DWORD dwFlags ) ;
 
 ! : GetUserNameA ;
 FUNCTION: BOOL GetUserNameW ( LPCTSTR lpBuffer, LPDWORD lpnSize ) ;
-: GetUserName GetUserNameW ;
+ALIAS: GetUserName GetUserNameW
 
 ! : GetWindowsAccountDomainSid ;
 ! : I_ScIsSecurityProcess ;
@@ -541,7 +542,7 @@ FUNCTION: BOOL InitializeAcl ( PACL pAcl, DWORD nAclLength, DWORD dwAclRevision
 FUNCTION: BOOL LookupPrivilegeValueW ( LPCTSTR lpSystemName,
                                LPCTSTR lpName,
                                PLUID lpLuid ) ;
-: LookupPrivilegeValue LookupPrivilegeValueW ;
+ALIAS: LookupPrivilegeValue LookupPrivilegeValueW
 
 ! : LookupSecurityDescriptorPartsA ;
 ! : LookupSecurityDescriptorPartsW ;
diff --git a/extra/io/windows/ce/authors.txt b/basis/windows/advapi32/authors.txt
similarity index 100%
rename from extra/io/windows/ce/authors.txt
rename to basis/windows/advapi32/authors.txt
diff --git a/basis/windows/advapi32/tags.txt b/basis/windows/advapi32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/advapi32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/authors.txt b/basis/windows/authors.txt
similarity index 100%
rename from extra/windows/authors.txt
rename to basis/windows/authors.txt
diff --git a/extra/io/windows/mmap/authors.txt b/basis/windows/ce/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/windows/mmap/authors.txt
rename to basis/windows/ce/authors.txt
diff --git a/extra/windows/ce/ce.factor b/basis/windows/ce/ce.factor
similarity index 100%
rename from extra/windows/ce/ce.factor
rename to basis/windows/ce/ce.factor
diff --git a/basis/windows/ce/tags.txt b/basis/windows/ce/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/ce/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/com/authors.txt b/basis/windows/com/authors.txt
similarity index 100%
rename from extra/windows/com/authors.txt
rename to basis/windows/com/authors.txt
diff --git a/extra/windows/com/com-docs.factor b/basis/windows/com/com-docs.factor
similarity index 68%
rename from extra/windows/com/com-docs.factor
rename to basis/windows/com/com-docs.factor
index 68663b4cdb..8c7584828f 100644
--- a/extra/windows/com/com-docs.factor
+++ b/basis/windows/com/com-docs.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.syntax io kernel math quotations
-multiline ;
+multiline destructors ;
 IN: windows.com
 
 HELP: com-query-interface
@@ -13,3 +13,14 @@ HELP: com-add-ref
 HELP: com-release
 { $values { "interface" "Pointer to a COM interface implementing " { $snippet "IUnknown" } } }
 { $description "A small wrapper around " { $link IUnknown::Release } ". Decrements the reference count on " { $snippet "interface" } ", releasing the underlying object if the reference count has reached zero." } ;
+
+HELP: &com-release
+{ $values { "interface" "Pointer to a COM interface implementing " { $snippet "IUnknown" } } }
+{ $description "Marks the given COM interface for unconditional release via " { $link com-release } " at the end of the enclosing " { $link with-destructors } " scope." } ;
+
+HELP: |com-release
+{ $values { "interface" "Pointer to a COM interface implementing " { $snippet "IUnknown" } } }
+{ $description "Marks the given COM interface for release via " { $link com-release } " in the event of an error at the end of the enclosing " { $link with-destructors } " scope." } ;
+
+{ com-release &com-release |com-release } related-words
+
diff --git a/extra/windows/com/com-tests.factor b/basis/windows/com/com-tests.factor
similarity index 74%
rename from extra/windows/com/com-tests.factor
rename to basis/windows/com/com-tests.factor
index abba8874d6..289581a929 100755
--- a/extra/windows/com/com-tests.factor
+++ b/basis/windows/com/com-tests.factor
@@ -1,7 +1,7 @@
 USING: kernel windows.com windows.com.syntax windows.ole32
-alien alien.syntax tools.test libc alien.c-types arrays.lib 
+alien alien.syntax tools.test libc alien.c-types 
 namespaces arrays continuations accessors math windows.com.wrapper
-windows.com.wrapper.private destructors ;
+windows.com.wrapper.private destructors effects ;
 IN: windows.com.tests
 
 COM-INTERFACE: ISimple IUnknown {216fb341-0eb2-44b1-8edb-60b76e353abc}
@@ -16,10 +16,16 @@ COM-INTERFACE: IUnrelated IUnknown {b06ac3f4-30e4-406b-a7cd-c29cead4552c}
     int xPlus ( int y )
     int xMulAdd ( int mul, int add ) ;
 
-"{216fb341-0eb2-44b1-8edb-60b76e353abc}" string>guid 1array [ ISimple-iid ] unit-test
-"{9620ecec-8438-423b-bb14-86f835aa40dd}" string>guid 1array [ IInherited-iid ] unit-test
-"{00000000-0000-0000-C000-000000000046}" string>guid 1array [ IUnknown-iid ] unit-test
-"{b06ac3f4-30e4-406b-a7cd-c29cead4552c}" string>guid 1array [ IUnrelated-iid ] unit-test
+{ GUID: {216fb341-0eb2-44b1-8edb-60b76e353abc} } [ ISimple-iid ] unit-test
+{ GUID: {9620ecec-8438-423b-bb14-86f835aa40dd} } [ IInherited-iid ] unit-test
+{ GUID: {00000000-0000-0000-C000-000000000046} } [ IUnknown-iid ] unit-test
+{ GUID: {b06ac3f4-30e4-406b-a7cd-c29cead4552c} } [ IUnrelated-iid ] unit-test
+
+{ (( -- iid )) } [ \ ISimple-iid stack-effect ] unit-test
+{ (( this -- HRESULT )) } [ \ ISimple::returnOK stack-effect ] unit-test
+{ (( this -- int )) } [ \ IInherited::getX stack-effect ] unit-test
+{ (( this newX -- )) } [ \ IInherited::setX stack-effect ] unit-test
+{ (( this mul add -- int )) } [ \ IUnrelated::xMulAdd stack-effect ] unit-test
 
 SYMBOL: +test-wrapper+
 SYMBOL: +guinea-pig-implementation+
@@ -39,7 +45,7 @@ C: <test-implementation> test-implementation
     } }
     { "IUnrelated" {
         [ swap x>> + ] ! IUnrelated::xPlus
-        [ spin x>> * + ] ! IUnrealted::xMulAdd
+        [ spin x>> * + ] ! IUnrelated::xMulAdd
     } }
 } <com-wrapper>
 dup +test-wrapper+ set [
@@ -49,7 +55,11 @@ dup +test-wrapper+ set [
 
         S_OK 1array [ +guinea-pig-implementation+ get ISimple::returnOK ] unit-test
         E_FAIL <long> *long 1array [ +guinea-pig-implementation+ get ISimple::returnError ] unit-test
-        20 1array [ +guinea-pig-implementation+ get dup 20 IInherited::setX IInherited::getX ] unit-test
+        20 1array [
+            +guinea-pig-implementation+ get
+            [ 20 IInherited::setX ]
+            [ IInherited::getX ] bi
+        ] unit-test
         420 1array [
             +guinea-pig-implementation+ get
             IUnrelated-iid com-query-interface
diff --git a/extra/windows/com/com.factor b/basis/windows/com/com.factor
old mode 100644
new mode 100755
similarity index 76%
rename from extra/windows/com/com.factor
rename to basis/windows/com/com.factor
index 4833a7412a..9649de6402
--- a/extra/windows/com/com.factor
+++ b/basis/windows/com/com.factor
@@ -1,5 +1,6 @@
 USING: alien alien.c-types windows.com.syntax windows.ole32
-windows.types continuations kernel alien.syntax ;
+windows.types continuations kernel alien.syntax libc
+destructors accessors ;
 IN: windows.com
 
 LIBRARY: ole32
@@ -27,9 +28,9 @@ COM-INTERFACE: IDropTarget IUnknown {00000122-0000-0000-C000-000000000046}
     HRESULT Drop ( IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect ) ;
 
 : com-query-interface ( interface iid -- interface' )
-    f <void*>
-    [ IUnknown::QueryInterface ole32-error ] keep
-    *void* ;
+    "void*" heap-size [
+        [ IUnknown::QueryInterface ole32-error ] keep *void*
+    ] with-malloc ;
 
 : com-add-ref ( interface -- interface )
      [ IUnknown::AddRef drop ] keep ; inline
@@ -39,3 +40,11 @@ COM-INTERFACE: IDropTarget IUnknown {00000122-0000-0000-C000-000000000046}
 
 : with-com-interface ( interface quot -- )
     over [ slip ] [ com-release ] [ ] cleanup ; inline
+
+TUPLE: com-destructor interface disposed ;
+M: com-destructor dispose* interface>> com-release ;
+
+: &com-release ( interface -- interface )
+    dup f com-destructor boa &dispose drop ;
+: |com-release ( interface -- interface )
+    dup f com-destructor boa |dispose drop ;
diff --git a/extra/windows/com/summary.txt b/basis/windows/com/summary.txt
similarity index 100%
rename from extra/windows/com/summary.txt
rename to basis/windows/com/summary.txt
diff --git a/extra/windows/com/syntax/authors.txt b/basis/windows/com/syntax/authors.txt
similarity index 100%
rename from extra/windows/com/syntax/authors.txt
rename to basis/windows/com/syntax/authors.txt
diff --git a/extra/windows/com/syntax/summary.txt b/basis/windows/com/syntax/summary.txt
similarity index 100%
rename from extra/windows/com/syntax/summary.txt
rename to basis/windows/com/syntax/summary.txt
diff --git a/extra/windows/com/syntax/syntax-docs.factor b/basis/windows/com/syntax/syntax-docs.factor
old mode 100644
new mode 100755
similarity index 86%
rename from extra/windows/com/syntax/syntax-docs.factor
rename to basis/windows/com/syntax/syntax-docs.factor
index fa06d5e4e7..62a3c6eaa0
--- a/extra/windows/com/syntax/syntax-docs.factor
+++ b/basis/windows/com/syntax/syntax-docs.factor
@@ -1,26 +1,30 @@
-USING: help.markup help.syntax io kernel math quotations
-multiline ;
-IN: windows.com.syntax
-
-HELP: COM-INTERFACE:
-{ $syntax <"
-COM-INTERFACE: <interface> <parent> <iid>
-    <function-1> ( <params1> )
-    <function-2> ( <params2> )
-    ... ;
-"> }
-{ $description "\nFor the interface " { $snippet "<interface>" } ", a word " { $snippet "<interface>-iid ( -- iid )" } " is defined to push the interface GUID (IID) onto the stack. Words of the form " { $snippet "<interface>::<function>" } " are also defined to invoke each method, as well as the methods inherited from " { $snippet "<parent>" } ". A " { $snippet "<parent>" } " of " { $snippet "f" } " indicates that the interface is a root interface. (Note that COM conventions demand that all interfaces at least inherit from " { $snippet "IUnknown" } ".)\n\nExample:" }
-{ $code <"
-COM-INTERFACE: IUnknown f {00000000-0000-0000-C000-000000000046}
-    HRESULT QueryInterface ( REFGUID iid, void** ppvObject )
-    ULONG AddRef ( )
-    ULONG Release ( ) ;
-
-COM-INTERFACE: ISimple IUnknown {216fb341-0eb2-44b1-8edb-60b76e353abc}
-    HRESULT returnOK ( )
-    HRESULT returnError ( ) ;
-
-COM-INTERFACE: IInherited ISimple {9620ecec-8438-423b-bb14-86f835aa40dd}
-    int getX ( )
-    void setX ( int newX ) ;
-"> } ;
+USING: help.markup help.syntax io kernel math quotations
+multiline ;
+IN: windows.com.syntax
+
+HELP: GUID:
+{ $syntax "GUID: {01234567-89ab-cdef-0123-456789abcdef}" }
+{ $description "\nCreate a COM globally-unique identifier (GUID) literal at parse time, and push it onto the data stack." } ;
+
+HELP: COM-INTERFACE:
+{ $syntax <"
+COM-INTERFACE: <interface> <parent> <iid>
+    <function-1> ( <params1> )
+    <function-2> ( <params2> )
+    ... ;
+"> }
+{ $description "\nFor the interface " { $snippet "<interface>" } ", a word " { $snippet "<interface>-iid ( -- iid )" } " is defined to push the interface GUID (IID) onto the stack. Words of the form " { $snippet "<interface>::<function>" } " are also defined to invoke each method, as well as the methods inherited from " { $snippet "<parent>" } ". A " { $snippet "<parent>" } " of " { $snippet "f" } " indicates that the interface is a root interface. (Note that COM conventions demand that all interfaces at least inherit from " { $snippet "IUnknown" } ".)\n\nExample:" }
+{ $code <"
+COM-INTERFACE: IUnknown f {00000000-0000-0000-C000-000000000046}
+    HRESULT QueryInterface ( REFGUID iid, void** ppvObject )
+    ULONG AddRef ( )
+    ULONG Release ( ) ;
+
+COM-INTERFACE: ISimple IUnknown {216fb341-0eb2-44b1-8edb-60b76e353abc}
+    HRESULT returnOK ( )
+    HRESULT returnError ( ) ;
+
+COM-INTERFACE: IInherited ISimple {9620ecec-8438-423b-bb14-86f835aa40dd}
+    int getX ( )
+    void setX ( int newX ) ;
+"> } ;
diff --git a/extra/windows/com/syntax/syntax.factor b/basis/windows/com/syntax/syntax.factor
similarity index 72%
rename from extra/windows/com/syntax/syntax.factor
rename to basis/windows/com/syntax/syntax.factor
index b63a5c3337..2f766a3a51 100755
--- a/extra/windows/com/syntax/syntax.factor
+++ b/basis/windows/com/syntax/syntax.factor
@@ -1,6 +1,7 @@
-USING: alien alien.c-types kernel windows.ole32 combinators.lib
-parser splitting sequences.lib sequences namespaces assocs
-quotations shuffle accessors words macros alien.syntax fry ;
+USING: alien alien.c-types effects kernel windows.ole32
+parser lexer splitting grouping sequences namespaces
+assocs quotations generalizations accessors words macros alien.syntax
+fry arrays ;
 IN: windows.com.syntax
 
 <PRIVATE
@@ -40,7 +41,7 @@ unless
 : (parse-com-function) ( tokens -- definition )
     [ second ]
     [ first ]
-    [ 3 tail 2 group [ first ] map "void*" prefix ]
+    [ 3 tail [ CHAR: , swap remove ] map 2 group { "void*" "this" } prefix ]
     tri
     <com-function-definition> ;
 
@@ -62,14 +63,24 @@ unless
     dup parent>> [ family-tree-functions ] [ { } ] if*
     swap functions>> append ;
 
+: (invocation-quot) ( function return parameters -- quot )
+    [ first ] map [ com-invoke ] 3curry ;
+
+: (stack-effect-from-return-and-parameters) ( return parameters -- stack-effect )
+    swap
+    [ [ second ] map ]
+    [ dup "void" = [ drop { } ] [ 1array ] if ] bi*
+    <effect> ;
+
 : (define-word-for-function) ( function interface n -- )
     -rot [ (function-word) swap ] 2keep drop
-    { return>> parameters>> } get-slots
-    [ com-invoke ] 3curry
-    define ;
+    [ return>> ] [ parameters>> ] bi
+    [ (invocation-quot) ] 2keep
+    (stack-effect-from-return-and-parameters)
+    define-declared ;
 
 : define-words-for-com-interface ( definition -- )
-    [ [ (iid-word) ] [ iid>> 1quotation ] bi define ]
+    [ [ (iid-word) ] [ iid>> 1quotation ] bi (( -- iid )) define-declared ]
     [ name>> "com-interface" swap typedef ]
     [
         dup family-tree-functions
@@ -89,3 +100,4 @@ PRIVATE>
     define-words-for-com-interface
     ; parsing
 
+: GUID: scan string>guid parsed ; parsing
diff --git a/extra/windows/com/syntax/tags.txt b/basis/windows/com/syntax/tags.txt
similarity index 65%
rename from extra/windows/com/syntax/tags.txt
rename to basis/windows/com/syntax/tags.txt
index 49139bab66..71c5900baf 100644
--- a/extra/windows/com/syntax/tags.txt
+++ b/basis/windows/com/syntax/tags.txt
@@ -1,3 +1,4 @@
-windows
-com
-bindings
+unportable
+windows
+com
+bindings
diff --git a/extra/windows/com/tags.txt b/basis/windows/com/tags.txt
similarity index 65%
rename from extra/windows/com/tags.txt
rename to basis/windows/com/tags.txt
index 49139bab66..71c5900baf 100644
--- a/extra/windows/com/tags.txt
+++ b/basis/windows/com/tags.txt
@@ -1,3 +1,4 @@
-windows
-com
-bindings
+unportable
+windows
+com
+bindings
diff --git a/extra/windows/com/wrapper/authors.txt b/basis/windows/com/wrapper/authors.txt
similarity index 100%
rename from extra/windows/com/wrapper/authors.txt
rename to basis/windows/com/wrapper/authors.txt
diff --git a/extra/windows/com/wrapper/summary.txt b/basis/windows/com/wrapper/summary.txt
similarity index 100%
rename from extra/windows/com/wrapper/summary.txt
rename to basis/windows/com/wrapper/summary.txt
diff --git a/extra/windows/com/wrapper/tags.txt b/basis/windows/com/wrapper/tags.txt
similarity index 65%
rename from extra/windows/com/wrapper/tags.txt
rename to basis/windows/com/wrapper/tags.txt
index ffb665dc8f..71c5900baf 100644
--- a/extra/windows/com/wrapper/tags.txt
+++ b/basis/windows/com/wrapper/tags.txt
@@ -1,3 +1,4 @@
+unportable
 windows
 com
 bindings
diff --git a/extra/windows/com/wrapper/wrapper-docs.factor b/basis/windows/com/wrapper/wrapper-docs.factor
similarity index 91%
rename from extra/windows/com/wrapper/wrapper-docs.factor
rename to basis/windows/com/wrapper/wrapper-docs.factor
index 89b199a38b..c863bb2762 100755
--- a/extra/windows/com/wrapper/wrapper-docs.factor
+++ b/basis/windows/com/wrapper/wrapper-docs.factor
@@ -5,7 +5,7 @@ IN: windows.com.wrapper
 
 HELP: <com-wrapper>
 { $values { "implementations" "an assoc relating COM interface names to arrays of quotations implementing that interface" } { "wrapper" "a " { $link com-wrapper } " tuple" } }
-{ $description "Constructs a " { $link com-wrapper } " tuple. Each key in the " { $snippet "implementations" } " assoc must be the name of an interface defined with " { $link POSTPONE: COM-INTERFACE: } ". The corresponding value must be an array of quotations implementing the methods of that interface in order, including those of its parent interfaces. The " { $snippet "IUnknown" } " methods (" { $link IUnknown::QueryInterface } ", " { $link IUnknown::AddRef } ", and " { $link IUnknown::Release } ") will be defined automatically and must not be specified in the array. These quotations should have stack effects mirroring those of the interface methods being implemented; for example, a method " { $snippet "void foobar ( int foo, int bar )" } " should be implemented with a quotation of effect " { $snippet "( this foo bar -- )" } ". The " { $snippet "this" } " parameter (that is, the leftmost parameter of any COM method) will be automatically converted from an alien pointer to the underlying Factor object before the quotation is invoked.\n\nThe resulting wrapper can be applied to a Factor object using the " { $link com-wrap } " word. The COM interface pointer returned by " { $snippet "com-wrap" } " can then be passed to C functions requiring a COM object as a parameter. The vtables constructed by " { $snippet "<com-wrapper>" } " are stored on the non-GC heap in order to be accessible to C functions; when the wrapper objects and its vtables are no longer needed, the object's resources must be freed using " { $link dispose } ".\n\nExample:" }
+{ $description "Constructs a " { $link com-wrapper } " tuple. Each key in the " { $snippet "implementations" } " assoc must be the name of an interface defined with " { $link POSTPONE: COM-INTERFACE: } ". The corresponding value must be an array of quotations implementing the methods of that interface in order, including those of its parent interfaces. The " { $snippet "IUnknown" } " methods (" { $link IUnknown::QueryInterface } ", " { $link IUnknown::AddRef } ", and " { $link IUnknown::Release } ") will be defined automatically and must not be specified in the array. These quotations should have stack effects mirroring those of the interface methods being implemented; for example, a method " { $snippet "void foobar ( int foo, int bar )" } " should be implemented with a quotation of effect " { $snippet "( this foo bar -- )" } ". The " { $snippet "this" } " parameter (that is, the leftmost parameter of any COM method) will be automatically converted from an alien pointer to the underlying Factor object before the quotation is invoked.\n\nThe resulting wrapper can be applied to a Factor object using the " { $link com-wrap } " word. The COM interface pointer returned by " { $snippet "com-wrap" } " can then be passed to C functions requiring a COM object as a parameter. The vtables constructed by " { $snippet "<com-wrapper>" } " are stored on the non-GC heap in order to be accessible to C functions; when the wrapper object and its vtables are no longer needed, the object's resources must be freed using " { $link dispose } ".\n\nExample:" }
 { $code <"
 COM-INTERFACE: ISimple IUnknown {216fb341-0eb2-44b1-8edb-60b76e353abc}
     HRESULT returnOK ( )
@@ -38,4 +38,4 @@ HELP: com-wrap
 { $description "Allocates a COM object using the implementations in the " { $snippet "wrapper" } " object for the vtables and " { $snippet "object" } " for the \"this\" parameter. The COM object is allocated on the heap with an initial reference count of 1. The object will automatically deallocate itself when its reference count reaches 0 as a result of calling " { $link IUnknown::Release } " or " { $link com-release } " on it.\n\nNote that if " { $snippet "wrapper" } " implements multiple interfaces, you cannot count on the returned COM object pointer implementing any particular interface beyond " { $snippet "IUnknown" } ". You will need to use " { $link com-query-interface } " or " { $link IUnknown::QueryInterface } " to ask the object for the particular interface you need." } ;
 
 HELP: com-wrapper
-{ $class-description "The tuple class used to store COM wrapper information. Objects of this class should be treated as opaque by user code. A com-wrapper can be constructed using the " { $link <com-wrapper> } " constructor and applied to a Factor object using " { $link com-wrap } "." } ;
+{ $class-description "The tuple class used to store COM wrapper information. Objects of this class should be treated as opaque by user code. A com-wrapper can be constructed using the " { $link <com-wrapper> } " constructor and applied to a Factor object using " { $link com-wrap } ". When no longer needed, release the com-wrapper's internally allocated data with " { $link dispose } "." } ;
diff --git a/basis/windows/com/wrapper/wrapper.factor b/basis/windows/com/wrapper/wrapper.factor
new file mode 100755
index 0000000000..59b616ecc7
--- /dev/null
+++ b/basis/windows/com/wrapper/wrapper.factor
@@ -0,0 +1,166 @@
+USING: alien alien.c-types windows.com.syntax init
+windows.com.syntax.private windows.com continuations kernel
+namespaces windows.ole32 libc vocabs assocs accessors arrays
+sequences quotations combinators math words compiler.units
+destructors fry math.parser generalizations sets ;
+IN: windows.com.wrapper
+
+TUPLE: com-wrapper callbacks vtbls disposed ;
+
+<PRIVATE
+
+SYMBOL: +wrapped-objects+
++wrapped-objects+ get-global
+[ H{ } +wrapped-objects+ set-global ]
+unless
+
+SYMBOL: +live-wrappers+
++live-wrappers+ get-global
+[ V{ } +live-wrappers+ set-global ]
+unless
+
+SYMBOL: +vtbl-counter+
++vtbl-counter+ get-global
+[ 0 +vtbl-counter+ set-global ]
+unless
+
+"windows.com.wrapper.callbacks" create-vocab drop
+
+: (next-vtbl-counter) ( -- n )
+    +vtbl-counter+ [ 1+ dup ] change ;
+
+: com-unwrap ( wrapped -- object )
+    +wrapped-objects+ get-global at*
+    [ "invalid COM wrapping pointer" throw ] unless ;
+
+: (free-wrapped-object) ( wrapped -- )
+    [ +wrapped-objects+ get-global delete-at ] keep
+    free ;
+
+: (query-interface-cases) ( interfaces -- cases )
+    [
+        [ find-com-interface-definition family-tree [ iid>> ] map ] dip
+        1quotation [ 2array ] curry map
+    ] map-index concat
+    [ drop f ] suffix ;
+
+: (make-query-interface) ( interfaces -- quot )
+    (query-interface-cases) 
+    '[
+        swap 16 memory>byte-array
+        , case
+        [
+            "void*" heap-size * rot <displaced-alien> com-add-ref
+            0 rot set-void*-nth S_OK
+        ] [ nip f 0 rot set-void*-nth E_NOINTERFACE ] if*
+    ] ;
+
+: (make-add-ref) ( interfaces -- quot )
+    length "void*" heap-size * '[
+        , swap <displaced-alien>
+        0 over ulong-nth
+        1+ [ 0 rot set-ulong-nth ] keep
+    ] ;
+
+: (make-release) ( interfaces -- quot )
+    length "void*" heap-size * '[
+        , over <displaced-alien>
+        0 over ulong-nth
+        1- [ 0 rot set-ulong-nth ] keep
+        dup zero? [ swap (free-wrapped-object) ] [ nip ] if
+    ] ;
+
+: (make-iunknown-methods) ( interfaces -- quots )
+    [ (make-query-interface) ]
+    [ (make-add-ref) ]
+    [ (make-release) ] tri
+    3array ;
+    
+: (thunk) ( n -- quot )
+    dup 0 =
+    [ drop [ ] ]
+    [ "void*" heap-size neg * '[ , swap <displaced-alien> ] ]
+    if ;
+
+: (thunked-quots) ( quots iunknown-methods thunk -- {thunk,quot}s )
+    [ '[ , '[ @ com-unwrap ] [ swap 2array ] curry map ] ]
+    [ '[ ,                   [ swap 2array ] curry map ] ] bi bi*
+    swap append ;
+
+: compile-alien-callback ( word return parameters abi quot -- word )
+    '[ , , , , alien-callback ]
+    [ [ (( -- alien )) define-declared ] pick slip ]
+    with-compilation-unit ;
+
+: byte-array>malloc ( byte-array -- alien )
+    [ byte-length malloc ] [ over byte-array>memory ] bi ;
+
+: (callback-word) ( function-name interface-name counter -- word )
+    [ "::" rot 3append "-callback-" ] dip number>string 3append
+    "windows.com.wrapper.callbacks" create ;
+
+: (finish-thunk) ( param-count thunk quot -- thunked-quot )
+    [ [ drop [ ] ] [ swap 1- '[ , , ndip ] ] if-empty ]
+    dip compose ;
+
+: (make-interface-callbacks) ( interface-name quots iunknown-methods n -- words )
+    (thunk) (thunked-quots)
+    swap [ find-com-interface-definition family-tree-functions ]
+    keep (next-vtbl-counter) '[
+        swap [
+            [ name>> , , (callback-word) ]
+            [ return>> ] [
+                parameters>>
+                [ [ first ] map ]
+                [ length ] bi
+            ] tri
+        ] [
+            first2 (finish-thunk)
+        ] bi*
+        "stdcall" swap compile-alien-callback
+    ] 2map ;
+
+: (make-callbacks) ( implementations -- sequence )
+    dup [ first ] map (make-iunknown-methods)
+    [ >r >r first2 r> r> swap (make-interface-callbacks) ]
+    curry map-index ;
+
+: (malloc-wrapped-object) ( wrapper -- wrapped-object )
+    vtbls>> length "void*" heap-size *
+    [ "ulong" heap-size + malloc ] keep
+    over <displaced-alien>
+    1 0 rot set-ulong-nth ;
+
+: (callbacks>vtbl) ( callbacks -- vtbl )
+    [ execute ] map >c-void*-array byte-array>malloc ;
+: (callbacks>vtbls) ( callbacks -- vtbls )
+    [ (callbacks>vtbl) ] map ;
+
+: (allocate-wrapper) ( wrapper -- )
+    dup callbacks>> (callbacks>vtbls) >>vtbls
+    f >>disposed drop ;
+
+: (init-hook) ( -- )
+    +live-wrappers+ get-global [ (allocate-wrapper) ] each
+    H{ } +wrapped-objects+ set-global ;
+
+[ (init-hook) ] "windows.com.wrapper" add-init-hook
+
+PRIVATE>
+
+: allocate-wrapper ( wrapper -- )
+    [ (allocate-wrapper) ]
+    [ +live-wrappers+ get adjoin ] bi ;
+
+: <com-wrapper> ( implementations -- wrapper )
+    (make-callbacks) f f com-wrapper boa
+    dup allocate-wrapper ;
+
+M: com-wrapper dispose*
+    [ [ free ] each f ] change-vtbls
+    +live-wrappers+ get-global delete ;
+
+: com-wrap ( object wrapper -- wrapped-object )
+    [ vtbls>> ] [ (malloc-wrapped-object) ] bi
+    [ [ set-void*-nth ] curry each-index ] keep
+    [ +wrapped-objects+ get-global set-at ] keep ;
diff --git a/basis/windows/dinput/authors.txt b/basis/windows/dinput/authors.txt
new file mode 100755
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/basis/windows/dinput/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/basis/windows/dinput/constants/constants.factor b/basis/windows/dinput/constants/constants.factor
new file mode 100755
index 0000000000..6c55ff0e67
--- /dev/null
+++ b/basis/windows/dinput/constants/constants.factor
@@ -0,0 +1,854 @@
+USING: windows.dinput windows.kernel32 windows.ole32 windows.com
+windows.com.syntax alien alien.c-types alien.syntax kernel system namespaces
+combinators sequences symbols fry math accessors macros words quotations
+libc continuations generalizations splitting locals assocs init ;
+IN: windows.dinput.constants
+
+! Some global variables aren't provided by the DirectInput DLL (they're in the
+! dinput8.lib import library), so we lovingly hand-craft equivalent values here
+
+SYMBOLS:
+    GUID_XAxis_malloced GUID_YAxis_malloced GUID_ZAxis_malloced
+    GUID_RxAxis_malloced GUID_RyAxis_malloced GUID_RzAxis_malloced
+    GUID_Slider_malloced GUID_Button_malloced GUID_Key_malloced GUID_POV_malloced GUID_Unknown_malloced
+    GUID_SysMouse_malloced GUID_SysKeyboard_malloced GUID_Joystick_malloced GUID_SysMouseEm_malloced
+    GUID_SysMouseEm2_malloced GUID_SysKeyboardEm_malloced GUID_SysKeyboardEm2_malloced
+    c_dfDIKeyboard c_dfDIKeyboard_HID c_dfDIMouse2 c_dfDIJoystick2 ;
+
+<PRIVATE
+
+: (field-spec-of) ( field struct -- field-spec )
+    c-type fields>> [ name>> = ] with find nip ;
+: (offsetof) ( field struct -- offset )
+    [ (field-spec-of) offset>> ] [ drop 0 ] if* ;
+: (sizeof) ( field struct -- size )
+    [ (field-spec-of) type>> "[" split1 drop heap-size ] [ drop 1 ] if* ;
+
+: (flag) ( thing -- integer )
+    {
+        { [ dup word? ] [ execute ] }
+        { [ dup callable? ] [ call ] }
+        [ ]
+    } cond ;
+
+: (flags) ( array -- )
+    0 [ (flag) bitor ] reduce ;
+
+: (DIOBJECTDATAFORMAT) ( pguid dwOfs dwType dwFlags alien -- alien )
+    [ {
+        [ set-DIOBJECTDATAFORMAT-dwFlags ]
+        [ set-DIOBJECTDATAFORMAT-dwType ]
+        [ set-DIOBJECTDATAFORMAT-dwOfs ]
+        [ set-DIOBJECTDATAFORMAT-pguid ]
+    } cleave ] keep ;
+
+: <DIOBJECTDATAFORMAT> ( struct {pguid-var,field,index,dwType-flags,dwFlags} -- alien )
+    {
+        [ first dup word? [ get ] when ]
+        [ second rot [ (offsetof) ] [ (sizeof) ] 2bi ]
+        [ third * + ]
+        [ fourth (flags) ]
+        [ 4 swap nth (flag) ]
+    } cleave
+    "DIOBJECTDATAFORMAT" <c-object> (DIOBJECTDATAFORMAT) ;
+
+: malloc-DIOBJECTDATAFORMAT-array ( struct array -- alien )
+    [ nip length "DIOBJECTDATAFORMAT" malloc-array dup ]
+    [
+        -rot [| args i alien struct |
+            struct args <DIOBJECTDATAFORMAT>
+            i alien set-DIOBJECTDATAFORMAT-nth
+        ] 2curry each-index
+    ] 2bi ;
+
+: (DIDATAFORMAT) ( dwSize dwObjSize dwFlags dwDataSize dwNumObjs rgodf alien -- alien )
+    [ {
+        [ set-DIDATAFORMAT-rgodf ]
+        [ set-DIDATAFORMAT-dwNumObjs ]
+        [ set-DIDATAFORMAT-dwDataSize ]
+        [ set-DIDATAFORMAT-dwFlags ]
+        [ set-DIDATAFORMAT-dwObjSize ]
+        [ set-DIDATAFORMAT-dwSize ]
+    } cleave ] keep ;
+
+: <DIDATAFORMAT> ( dwFlags dwDataSize struct rgodf-array -- alien )
+    [ "DIDATAFORMAT" heap-size "DIOBJECTDATAFORMAT" heap-size ] 4 ndip
+    [ nip length ] [ malloc-DIOBJECTDATAFORMAT-array ] 2bi
+    "DIDATAFORMAT" <c-object> (DIDATAFORMAT) ;
+
+: (malloc-guid-symbol) ( symbol guid -- )
+    global swap '[ [
+        , execute [ byte-length malloc ] [ over byte-array>memory ] bi
+    ] unless* ] change-at ;
+
+: define-guid-constants ( -- )
+    {
+        { GUID_XAxis_malloced          GUID_XAxis }
+        { GUID_YAxis_malloced          GUID_YAxis }
+        { GUID_ZAxis_malloced          GUID_ZAxis }
+        { GUID_RxAxis_malloced         GUID_RxAxis }
+        { GUID_RyAxis_malloced         GUID_RyAxis }
+        { GUID_RzAxis_malloced         GUID_RzAxis }
+        { GUID_Slider_malloced         GUID_Slider }
+        { GUID_Button_malloced         GUID_Button }
+        { GUID_Key_malloced            GUID_Key }
+        { GUID_POV_malloced            GUID_POV }
+        { GUID_Unknown_malloced        GUID_Unknown }
+        { GUID_SysMouse_malloced       GUID_SysMouse }
+        { GUID_SysKeyboard_malloced    GUID_SysKeyboard }
+        { GUID_Joystick_malloced       GUID_Joystick }
+        { GUID_SysMouseEm_malloced     GUID_SysMouseEm }
+        { GUID_SysMouseEm2_malloced    GUID_SysMouseEm2 }
+        { GUID_SysKeyboardEm_malloced  GUID_SysKeyboardEm }
+        { GUID_SysKeyboardEm2_malloced GUID_SysKeyboardEm2 }
+    } [ first2 (malloc-guid-symbol) ] each ;
+
+: define-joystick-format-constant ( -- )
+    c_dfDIJoystick2 global [ [
+        DIDF_ABSAXIS
+        "DIJOYSTATE2" heap-size
+        "DIJOYSTATE2" {
+            { GUID_XAxis_malloced  "lX"           0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_YAxis_malloced  "lY"           0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_ZAxis_malloced  "lZ"           0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_RxAxis_malloced "lRx"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_RyAxis_malloced "lRy"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_RzAxis_malloced "lRz"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_Slider_malloced "rglSlider"    0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_Slider_malloced "rglSlider"    1 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } 0 }
+            { GUID_POV_malloced    "rgdwPOV"      0 { DIDFT_OPTIONAL DIDFT_POV    DIDFT_ANYINSTANCE } 0 }
+            { GUID_POV_malloced    "rgdwPOV"      1 { DIDFT_OPTIONAL DIDFT_POV    DIDFT_ANYINSTANCE } 0 }
+            { GUID_POV_malloced    "rgdwPOV"      2 { DIDFT_OPTIONAL DIDFT_POV    DIDFT_ANYINSTANCE } 0 }
+            { GUID_POV_malloced    "rgdwPOV"      3 { DIDFT_OPTIONAL DIDFT_POV    DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   0 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   1 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   2 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   3 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   4 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   5 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   6 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   7 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   8 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"   9 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  10 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  11 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  12 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  13 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  14 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  15 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  16 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  17 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  18 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  19 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  20 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  21 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  22 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  23 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  24 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  25 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  26 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  27 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  28 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  29 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  30 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  31 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  32 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  33 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  34 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  35 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  36 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  37 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  38 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  39 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  40 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  41 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  42 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  43 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  44 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  45 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  46 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  47 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  48 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  49 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  50 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  51 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  52 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  53 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  54 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  55 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  56 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  57 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  58 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  59 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  60 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  61 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  62 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  63 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  64 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  65 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  66 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  67 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  68 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  69 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  70 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  71 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  72 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  73 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  74 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  75 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  76 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  77 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  78 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  79 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  80 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  81 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  82 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  83 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  84 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  85 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  86 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  87 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  88 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  89 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  90 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  91 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  92 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  93 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  94 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  95 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  96 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  97 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  98 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons"  99 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 100 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 101 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 102 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 103 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 104 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 105 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 106 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 107 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 108 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 109 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 110 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 111 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 112 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 113 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 114 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 115 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 116 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 117 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 118 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 119 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 120 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 121 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 122 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 123 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 124 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 125 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 126 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { f           "rgbButtons" 127 { DIDFT_OPTIONAL DIDFT_BUTTON DIDFT_ANYINSTANCE } 0 }
+            { GUID_XAxis_malloced  "lVX"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_YAxis_malloced  "lVY"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_ZAxis_malloced  "lVZ"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_RxAxis_malloced "lVRx"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_RyAxis_malloced "lVRy"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_RzAxis_malloced "lVRz"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_Slider_malloced "rglVSlider"   0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_Slider_malloced "rglVSlider"   1 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTVELOCITY }
+            { GUID_XAxis_malloced  "lAX"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_YAxis_malloced  "lAY"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_ZAxis_malloced  "lAZ"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_RxAxis_malloced "lARx"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_RyAxis_malloced "lARy"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_RzAxis_malloced "lARz"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_Slider_malloced "rglASlider"   0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_Slider_malloced "rglASlider"   1 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTACCEL }
+            { GUID_XAxis_malloced  "lFX"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_YAxis_malloced  "lFY"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_ZAxis_malloced  "lFZ"          0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_RxAxis_malloced "lFRx"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_RyAxis_malloced "lFRy"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_RzAxis_malloced "lFRz"         0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_Slider_malloced "rglFSlider"   0 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+            { GUID_Slider_malloced "rglFSlider"   1 { DIDFT_OPTIONAL DIDFT_AXIS   DIDFT_ANYINSTANCE } DIDOI_ASPECTFORCE }
+        } <DIDATAFORMAT>
+    ] unless* ] change-at ;
+
+: define-mouse-format-constant ( -- )
+    c_dfDIMouse2 global [ [
+        DIDF_RELAXIS
+        "DIMOUSESTATE2" heap-size
+        "DIMOUSESTATE2" {
+            { GUID_XAxis_malloced  "lX"         0 {                DIDFT_ANYINSTANCE DIDFT_AXIS   } 0 }
+            { GUID_YAxis_malloced  "lY"         0 {                DIDFT_ANYINSTANCE DIDFT_AXIS   } 0 }
+            { GUID_ZAxis_malloced  "lZ"         0 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_AXIS   } 0 }
+            { GUID_Button_malloced "rgbButtons" 0 {                DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 1 {                DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 2 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 3 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 4 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 5 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 6 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+            { GUID_Button_malloced "rgbButtons" 7 { DIDFT_OPTIONAL DIDFT_ANYINSTANCE DIDFT_BUTTON } 0 }
+        } <DIDATAFORMAT>
+    ] unless* ] change-at ;
+
+! Not a standard DirectInput format. Included for cross-platform niceness.
+! This format returns the keyboard keys in USB HID order rather than Windows
+! order
+: define-hid-keyboard-format-constant ( -- )
+    c_dfDIKeyboard_HID global [ [
+        DIDF_RELAXIS
+        256
+        f {
+            { GUID_Key_malloced f   0 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   1 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   2 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   3 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   4 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_A DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   5 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_B DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   6 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_C DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   7 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_D DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   8 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_E DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   9 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  10 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_G DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  11 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_H DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  12 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_I DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  13 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_J DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  14 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_K DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  15 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_L DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  16 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_M DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  17 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_N DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  18 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_O DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  19 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_P DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  20 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_Q DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  21 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_R DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  22 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_S DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  23 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_T DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  24 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_U DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  25 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_V DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  26 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_W DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  27 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_X DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  28 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_Y DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  29 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_Z DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  30 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_1 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  31 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_2 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  32 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_3 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  33 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_4 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  34 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_5 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  35 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_6 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  36 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_7 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  37 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_8 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  38 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_9 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  39 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  40 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RETURN DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  41 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_ESCAPE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  42 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_BACK DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  43 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_TAB DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  44 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_SPACE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  45 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_MINUS DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  46 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_EQUALS DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  47 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_LBRACKET DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  48 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RBRACKET DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  49 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_BACKSLASH DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  50 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  51 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_SEMICOLON DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  52 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_APOSTROPHE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  53 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_GRAVE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  54 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_COMMA  DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  55 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_PERIOD DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  56 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_SLASH  DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  57 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_CAPITAL DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  58 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F1 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  59 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F2 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  60 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F3 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  61 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F4 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  62 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F5 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  63 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F6 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  64 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F7 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  65 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F8 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  66 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F9 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  67 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F10 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  68 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F11 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  69 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F12 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  70 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_SYSRQ DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  71 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_SCROLL DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  72 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_PAUSE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  73 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_INSERT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  74 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_HOME DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  75 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_PRIOR DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  76 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_DELETE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  77 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_END DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  78 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NEXT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  79 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RIGHT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  80 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_LEFT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  81 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_DOWN DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  82 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_UP DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  83 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMLOCK DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  84 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_DIVIDE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  85 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_MULTIPLY DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  86 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_SUBTRACT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  87 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_ADD DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  88 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPADENTER DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  89 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD1 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  90 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD2 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  91 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD3 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  92 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD4 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  93 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD5 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  94 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD6 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  95 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD7 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  96 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD8 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  97 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD9 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  98 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPAD0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  99 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_DECIMAL DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 100 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_OEM_102 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 101 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_APPS DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 102 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_POWER DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 103 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NUMPADEQUALS DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 104 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F13 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 105 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F14 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 106 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_F15 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 107 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 108 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 109 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 110 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 111 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 112 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 113 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 114 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 115 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 116 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 117 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 118 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 119 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 120 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 121 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 122 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 123 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 124 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 125 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 126 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 127 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_MUTE DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 128 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_VOLUMEUP DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 129 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_VOLUMEDOWN DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 130 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 131 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 132 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 133 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_ABNT_C2 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 134 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 135 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_ABNT_C1 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 136 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_KANA DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 137 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_YEN DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 138 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_CONVERT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 139 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_NOCONVERT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 140 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 141 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 142 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 143 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 144 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 145 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 146 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 147 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 148 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 149 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 150 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 151 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 152 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 153 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 154 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 155 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 156 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 157 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 158 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 159 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 160 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 161 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 162 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 163 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 164 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 165 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 166 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 167 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 168 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 169 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 170 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 171 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 172 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 173 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 174 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 175 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 176 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 177 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 178 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 179 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 180 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 181 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 182 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 183 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 184 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 185 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 186 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 187 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 188 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 189 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 190 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 191 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 192 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 193 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 194 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 195 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 196 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 197 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 198 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 199 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 200 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 201 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 202 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 203 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 204 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 205 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 206 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 207 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 208 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 209 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 210 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 211 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 212 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 213 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 214 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 215 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 216 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 217 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 218 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 219 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 220 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 221 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 222 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 223 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 224 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_LCONTROL DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 225 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_LSHIFT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 226 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_LMENU DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 227 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_LWIN DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 228 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RCONTROL DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 229 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RSHIFT DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 230 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RMENU DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 231 { DIDFT_OPTIONAL DIDFT_BUTTON [ DIK_RWIN DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 232 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 233 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 234 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 235 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 236 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 237 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 238 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 239 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 240 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 241 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 242 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 243 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 244 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 245 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 246 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 247 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 248 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 249 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 250 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 251 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 252 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 253 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 254 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 255 { DIDFT_OPTIONAL DIDFT_BUTTON [ 0 DIDFT_MAKEINSTANCE ] } 0 }
+        } <DIDATAFORMAT>
+    ] unless* ] change-at ;
+
+: define-keyboard-format-constant ( -- )
+    c_dfDIKeyboard global [ [
+        DIDF_RELAXIS
+        256
+        f {
+            { GUID_Key_malloced f   0 { DIDFT_OPTIONAL DIDFT_BUTTON [   0 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   1 { DIDFT_OPTIONAL DIDFT_BUTTON [   1 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   2 { DIDFT_OPTIONAL DIDFT_BUTTON [   2 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   3 { DIDFT_OPTIONAL DIDFT_BUTTON [   3 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   4 { DIDFT_OPTIONAL DIDFT_BUTTON [   4 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   5 { DIDFT_OPTIONAL DIDFT_BUTTON [   5 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   6 { DIDFT_OPTIONAL DIDFT_BUTTON [   6 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   7 { DIDFT_OPTIONAL DIDFT_BUTTON [   7 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   8 { DIDFT_OPTIONAL DIDFT_BUTTON [   8 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f   9 { DIDFT_OPTIONAL DIDFT_BUTTON [   9 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  10 { DIDFT_OPTIONAL DIDFT_BUTTON [  10 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  11 { DIDFT_OPTIONAL DIDFT_BUTTON [  11 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  12 { DIDFT_OPTIONAL DIDFT_BUTTON [  12 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  13 { DIDFT_OPTIONAL DIDFT_BUTTON [  13 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  14 { DIDFT_OPTIONAL DIDFT_BUTTON [  14 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  15 { DIDFT_OPTIONAL DIDFT_BUTTON [  15 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  16 { DIDFT_OPTIONAL DIDFT_BUTTON [  16 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  17 { DIDFT_OPTIONAL DIDFT_BUTTON [  17 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  18 { DIDFT_OPTIONAL DIDFT_BUTTON [  18 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  19 { DIDFT_OPTIONAL DIDFT_BUTTON [  19 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  20 { DIDFT_OPTIONAL DIDFT_BUTTON [  20 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  21 { DIDFT_OPTIONAL DIDFT_BUTTON [  21 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  22 { DIDFT_OPTIONAL DIDFT_BUTTON [  22 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  23 { DIDFT_OPTIONAL DIDFT_BUTTON [  23 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  24 { DIDFT_OPTIONAL DIDFT_BUTTON [  24 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  25 { DIDFT_OPTIONAL DIDFT_BUTTON [  25 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  26 { DIDFT_OPTIONAL DIDFT_BUTTON [  26 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  27 { DIDFT_OPTIONAL DIDFT_BUTTON [  27 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  28 { DIDFT_OPTIONAL DIDFT_BUTTON [  28 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  29 { DIDFT_OPTIONAL DIDFT_BUTTON [  29 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  30 { DIDFT_OPTIONAL DIDFT_BUTTON [  30 DIDFT_MAKEINSTANCE ] } 0 }
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+            { GUID_Key_malloced f  33 { DIDFT_OPTIONAL DIDFT_BUTTON [  33 DIDFT_MAKEINSTANCE ] } 0 }
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+            { GUID_Key_malloced f  38 { DIDFT_OPTIONAL DIDFT_BUTTON [  38 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  39 { DIDFT_OPTIONAL DIDFT_BUTTON [  39 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  40 { DIDFT_OPTIONAL DIDFT_BUTTON [  40 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  41 { DIDFT_OPTIONAL DIDFT_BUTTON [  41 DIDFT_MAKEINSTANCE ] } 0 }
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+            { GUID_Key_malloced f  45 { DIDFT_OPTIONAL DIDFT_BUTTON [  45 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  46 { DIDFT_OPTIONAL DIDFT_BUTTON [  46 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  47 { DIDFT_OPTIONAL DIDFT_BUTTON [  47 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  48 { DIDFT_OPTIONAL DIDFT_BUTTON [  48 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  49 { DIDFT_OPTIONAL DIDFT_BUTTON [  49 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  50 { DIDFT_OPTIONAL DIDFT_BUTTON [  50 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  51 { DIDFT_OPTIONAL DIDFT_BUTTON [  51 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  52 { DIDFT_OPTIONAL DIDFT_BUTTON [  52 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  53 { DIDFT_OPTIONAL DIDFT_BUTTON [  53 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  54 { DIDFT_OPTIONAL DIDFT_BUTTON [  54 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  55 { DIDFT_OPTIONAL DIDFT_BUTTON [  55 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  56 { DIDFT_OPTIONAL DIDFT_BUTTON [  56 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  57 { DIDFT_OPTIONAL DIDFT_BUTTON [  57 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  58 { DIDFT_OPTIONAL DIDFT_BUTTON [  58 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  59 { DIDFT_OPTIONAL DIDFT_BUTTON [  59 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  60 { DIDFT_OPTIONAL DIDFT_BUTTON [  60 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  61 { DIDFT_OPTIONAL DIDFT_BUTTON [  61 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  62 { DIDFT_OPTIONAL DIDFT_BUTTON [  62 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  63 { DIDFT_OPTIONAL DIDFT_BUTTON [  63 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  64 { DIDFT_OPTIONAL DIDFT_BUTTON [  64 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  65 { DIDFT_OPTIONAL DIDFT_BUTTON [  65 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  66 { DIDFT_OPTIONAL DIDFT_BUTTON [  66 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  67 { DIDFT_OPTIONAL DIDFT_BUTTON [  67 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  68 { DIDFT_OPTIONAL DIDFT_BUTTON [  68 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  69 { DIDFT_OPTIONAL DIDFT_BUTTON [  69 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  70 { DIDFT_OPTIONAL DIDFT_BUTTON [  70 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  71 { DIDFT_OPTIONAL DIDFT_BUTTON [  71 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  72 { DIDFT_OPTIONAL DIDFT_BUTTON [  72 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  73 { DIDFT_OPTIONAL DIDFT_BUTTON [  73 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  74 { DIDFT_OPTIONAL DIDFT_BUTTON [  74 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  75 { DIDFT_OPTIONAL DIDFT_BUTTON [  75 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  76 { DIDFT_OPTIONAL DIDFT_BUTTON [  76 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  77 { DIDFT_OPTIONAL DIDFT_BUTTON [  77 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  78 { DIDFT_OPTIONAL DIDFT_BUTTON [  78 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  79 { DIDFT_OPTIONAL DIDFT_BUTTON [  79 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  80 { DIDFT_OPTIONAL DIDFT_BUTTON [  80 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  81 { DIDFT_OPTIONAL DIDFT_BUTTON [  81 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  82 { DIDFT_OPTIONAL DIDFT_BUTTON [  82 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  83 { DIDFT_OPTIONAL DIDFT_BUTTON [  83 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  84 { DIDFT_OPTIONAL DIDFT_BUTTON [  84 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  85 { DIDFT_OPTIONAL DIDFT_BUTTON [  85 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  86 { DIDFT_OPTIONAL DIDFT_BUTTON [  86 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  87 { DIDFT_OPTIONAL DIDFT_BUTTON [  87 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  88 { DIDFT_OPTIONAL DIDFT_BUTTON [  88 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  89 { DIDFT_OPTIONAL DIDFT_BUTTON [  89 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  90 { DIDFT_OPTIONAL DIDFT_BUTTON [  90 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  91 { DIDFT_OPTIONAL DIDFT_BUTTON [  91 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  92 { DIDFT_OPTIONAL DIDFT_BUTTON [  92 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  93 { DIDFT_OPTIONAL DIDFT_BUTTON [  93 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  94 { DIDFT_OPTIONAL DIDFT_BUTTON [  94 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  95 { DIDFT_OPTIONAL DIDFT_BUTTON [  95 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  96 { DIDFT_OPTIONAL DIDFT_BUTTON [  96 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  97 { DIDFT_OPTIONAL DIDFT_BUTTON [  97 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  98 { DIDFT_OPTIONAL DIDFT_BUTTON [  98 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f  99 { DIDFT_OPTIONAL DIDFT_BUTTON [  99 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 100 { DIDFT_OPTIONAL DIDFT_BUTTON [ 100 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 101 { DIDFT_OPTIONAL DIDFT_BUTTON [ 101 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 102 { DIDFT_OPTIONAL DIDFT_BUTTON [ 102 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 103 { DIDFT_OPTIONAL DIDFT_BUTTON [ 103 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 104 { DIDFT_OPTIONAL DIDFT_BUTTON [ 104 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 105 { DIDFT_OPTIONAL DIDFT_BUTTON [ 105 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 106 { DIDFT_OPTIONAL DIDFT_BUTTON [ 106 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 107 { DIDFT_OPTIONAL DIDFT_BUTTON [ 107 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 108 { DIDFT_OPTIONAL DIDFT_BUTTON [ 108 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 109 { DIDFT_OPTIONAL DIDFT_BUTTON [ 109 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 110 { DIDFT_OPTIONAL DIDFT_BUTTON [ 110 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 111 { DIDFT_OPTIONAL DIDFT_BUTTON [ 111 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 112 { DIDFT_OPTIONAL DIDFT_BUTTON [ 112 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 113 { DIDFT_OPTIONAL DIDFT_BUTTON [ 113 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 114 { DIDFT_OPTIONAL DIDFT_BUTTON [ 114 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 115 { DIDFT_OPTIONAL DIDFT_BUTTON [ 115 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 116 { DIDFT_OPTIONAL DIDFT_BUTTON [ 116 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 117 { DIDFT_OPTIONAL DIDFT_BUTTON [ 117 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 118 { DIDFT_OPTIONAL DIDFT_BUTTON [ 118 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 119 { DIDFT_OPTIONAL DIDFT_BUTTON [ 119 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 120 { DIDFT_OPTIONAL DIDFT_BUTTON [ 120 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 121 { DIDFT_OPTIONAL DIDFT_BUTTON [ 121 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 122 { DIDFT_OPTIONAL DIDFT_BUTTON [ 122 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 123 { DIDFT_OPTIONAL DIDFT_BUTTON [ 123 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 124 { DIDFT_OPTIONAL DIDFT_BUTTON [ 124 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 125 { DIDFT_OPTIONAL DIDFT_BUTTON [ 125 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 126 { DIDFT_OPTIONAL DIDFT_BUTTON [ 126 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 127 { DIDFT_OPTIONAL DIDFT_BUTTON [ 127 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 128 { DIDFT_OPTIONAL DIDFT_BUTTON [ 128 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 129 { DIDFT_OPTIONAL DIDFT_BUTTON [ 129 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 130 { DIDFT_OPTIONAL DIDFT_BUTTON [ 130 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 131 { DIDFT_OPTIONAL DIDFT_BUTTON [ 131 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 132 { DIDFT_OPTIONAL DIDFT_BUTTON [ 132 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 133 { DIDFT_OPTIONAL DIDFT_BUTTON [ 133 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 134 { DIDFT_OPTIONAL DIDFT_BUTTON [ 134 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 135 { DIDFT_OPTIONAL DIDFT_BUTTON [ 135 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 136 { DIDFT_OPTIONAL DIDFT_BUTTON [ 136 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 137 { DIDFT_OPTIONAL DIDFT_BUTTON [ 137 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 138 { DIDFT_OPTIONAL DIDFT_BUTTON [ 138 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 139 { DIDFT_OPTIONAL DIDFT_BUTTON [ 139 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 140 { DIDFT_OPTIONAL DIDFT_BUTTON [ 140 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 141 { DIDFT_OPTIONAL DIDFT_BUTTON [ 141 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 142 { DIDFT_OPTIONAL DIDFT_BUTTON [ 142 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 143 { DIDFT_OPTIONAL DIDFT_BUTTON [ 143 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 144 { DIDFT_OPTIONAL DIDFT_BUTTON [ 144 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 145 { DIDFT_OPTIONAL DIDFT_BUTTON [ 145 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 146 { DIDFT_OPTIONAL DIDFT_BUTTON [ 146 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 147 { DIDFT_OPTIONAL DIDFT_BUTTON [ 147 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 148 { DIDFT_OPTIONAL DIDFT_BUTTON [ 148 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 149 { DIDFT_OPTIONAL DIDFT_BUTTON [ 149 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 150 { DIDFT_OPTIONAL DIDFT_BUTTON [ 150 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 151 { DIDFT_OPTIONAL DIDFT_BUTTON [ 151 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 152 { DIDFT_OPTIONAL DIDFT_BUTTON [ 152 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 153 { DIDFT_OPTIONAL DIDFT_BUTTON [ 153 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 154 { DIDFT_OPTIONAL DIDFT_BUTTON [ 154 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 155 { DIDFT_OPTIONAL DIDFT_BUTTON [ 155 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 156 { DIDFT_OPTIONAL DIDFT_BUTTON [ 156 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 157 { DIDFT_OPTIONAL DIDFT_BUTTON [ 157 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 158 { DIDFT_OPTIONAL DIDFT_BUTTON [ 158 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 159 { DIDFT_OPTIONAL DIDFT_BUTTON [ 159 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 160 { DIDFT_OPTIONAL DIDFT_BUTTON [ 160 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 161 { DIDFT_OPTIONAL DIDFT_BUTTON [ 161 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 162 { DIDFT_OPTIONAL DIDFT_BUTTON [ 162 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 163 { DIDFT_OPTIONAL DIDFT_BUTTON [ 163 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 164 { DIDFT_OPTIONAL DIDFT_BUTTON [ 164 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 165 { DIDFT_OPTIONAL DIDFT_BUTTON [ 165 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 166 { DIDFT_OPTIONAL DIDFT_BUTTON [ 166 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 167 { DIDFT_OPTIONAL DIDFT_BUTTON [ 167 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 168 { DIDFT_OPTIONAL DIDFT_BUTTON [ 168 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 169 { DIDFT_OPTIONAL DIDFT_BUTTON [ 169 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 170 { DIDFT_OPTIONAL DIDFT_BUTTON [ 170 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 171 { DIDFT_OPTIONAL DIDFT_BUTTON [ 171 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 172 { DIDFT_OPTIONAL DIDFT_BUTTON [ 172 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 173 { DIDFT_OPTIONAL DIDFT_BUTTON [ 173 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 174 { DIDFT_OPTIONAL DIDFT_BUTTON [ 174 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 175 { DIDFT_OPTIONAL DIDFT_BUTTON [ 175 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 176 { DIDFT_OPTIONAL DIDFT_BUTTON [ 176 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 177 { DIDFT_OPTIONAL DIDFT_BUTTON [ 177 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 178 { DIDFT_OPTIONAL DIDFT_BUTTON [ 178 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 179 { DIDFT_OPTIONAL DIDFT_BUTTON [ 179 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 180 { DIDFT_OPTIONAL DIDFT_BUTTON [ 180 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 181 { DIDFT_OPTIONAL DIDFT_BUTTON [ 181 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 182 { DIDFT_OPTIONAL DIDFT_BUTTON [ 182 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 183 { DIDFT_OPTIONAL DIDFT_BUTTON [ 183 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 184 { DIDFT_OPTIONAL DIDFT_BUTTON [ 184 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 185 { DIDFT_OPTIONAL DIDFT_BUTTON [ 185 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 186 { DIDFT_OPTIONAL DIDFT_BUTTON [ 186 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 187 { DIDFT_OPTIONAL DIDFT_BUTTON [ 187 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 188 { DIDFT_OPTIONAL DIDFT_BUTTON [ 188 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 189 { DIDFT_OPTIONAL DIDFT_BUTTON [ 189 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 190 { DIDFT_OPTIONAL DIDFT_BUTTON [ 190 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 191 { DIDFT_OPTIONAL DIDFT_BUTTON [ 191 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 192 { DIDFT_OPTIONAL DIDFT_BUTTON [ 192 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 193 { DIDFT_OPTIONAL DIDFT_BUTTON [ 193 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 194 { DIDFT_OPTIONAL DIDFT_BUTTON [ 194 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 195 { DIDFT_OPTIONAL DIDFT_BUTTON [ 195 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 196 { DIDFT_OPTIONAL DIDFT_BUTTON [ 196 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 197 { DIDFT_OPTIONAL DIDFT_BUTTON [ 197 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 198 { DIDFT_OPTIONAL DIDFT_BUTTON [ 198 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 199 { DIDFT_OPTIONAL DIDFT_BUTTON [ 199 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 200 { DIDFT_OPTIONAL DIDFT_BUTTON [ 200 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 201 { DIDFT_OPTIONAL DIDFT_BUTTON [ 201 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 202 { DIDFT_OPTIONAL DIDFT_BUTTON [ 202 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 203 { DIDFT_OPTIONAL DIDFT_BUTTON [ 203 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 204 { DIDFT_OPTIONAL DIDFT_BUTTON [ 204 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 205 { DIDFT_OPTIONAL DIDFT_BUTTON [ 205 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 206 { DIDFT_OPTIONAL DIDFT_BUTTON [ 206 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 207 { DIDFT_OPTIONAL DIDFT_BUTTON [ 207 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 208 { DIDFT_OPTIONAL DIDFT_BUTTON [ 208 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 209 { DIDFT_OPTIONAL DIDFT_BUTTON [ 209 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 210 { DIDFT_OPTIONAL DIDFT_BUTTON [ 210 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 211 { DIDFT_OPTIONAL DIDFT_BUTTON [ 211 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 212 { DIDFT_OPTIONAL DIDFT_BUTTON [ 212 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 213 { DIDFT_OPTIONAL DIDFT_BUTTON [ 213 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 214 { DIDFT_OPTIONAL DIDFT_BUTTON [ 214 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 215 { DIDFT_OPTIONAL DIDFT_BUTTON [ 215 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 216 { DIDFT_OPTIONAL DIDFT_BUTTON [ 216 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 217 { DIDFT_OPTIONAL DIDFT_BUTTON [ 217 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 218 { DIDFT_OPTIONAL DIDFT_BUTTON [ 218 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 219 { DIDFT_OPTIONAL DIDFT_BUTTON [ 219 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 220 { DIDFT_OPTIONAL DIDFT_BUTTON [ 220 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 221 { DIDFT_OPTIONAL DIDFT_BUTTON [ 221 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 222 { DIDFT_OPTIONAL DIDFT_BUTTON [ 222 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 223 { DIDFT_OPTIONAL DIDFT_BUTTON [ 223 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 224 { DIDFT_OPTIONAL DIDFT_BUTTON [ 224 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 225 { DIDFT_OPTIONAL DIDFT_BUTTON [ 225 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 226 { DIDFT_OPTIONAL DIDFT_BUTTON [ 226 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 227 { DIDFT_OPTIONAL DIDFT_BUTTON [ 227 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 228 { DIDFT_OPTIONAL DIDFT_BUTTON [ 228 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 229 { DIDFT_OPTIONAL DIDFT_BUTTON [ 229 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 230 { DIDFT_OPTIONAL DIDFT_BUTTON [ 230 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 231 { DIDFT_OPTIONAL DIDFT_BUTTON [ 231 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 232 { DIDFT_OPTIONAL DIDFT_BUTTON [ 232 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 233 { DIDFT_OPTIONAL DIDFT_BUTTON [ 233 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 234 { DIDFT_OPTIONAL DIDFT_BUTTON [ 234 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 235 { DIDFT_OPTIONAL DIDFT_BUTTON [ 235 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 236 { DIDFT_OPTIONAL DIDFT_BUTTON [ 236 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 237 { DIDFT_OPTIONAL DIDFT_BUTTON [ 237 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 238 { DIDFT_OPTIONAL DIDFT_BUTTON [ 238 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 239 { DIDFT_OPTIONAL DIDFT_BUTTON [ 239 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 240 { DIDFT_OPTIONAL DIDFT_BUTTON [ 240 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 241 { DIDFT_OPTIONAL DIDFT_BUTTON [ 241 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 242 { DIDFT_OPTIONAL DIDFT_BUTTON [ 242 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 243 { DIDFT_OPTIONAL DIDFT_BUTTON [ 243 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 244 { DIDFT_OPTIONAL DIDFT_BUTTON [ 244 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 245 { DIDFT_OPTIONAL DIDFT_BUTTON [ 245 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 246 { DIDFT_OPTIONAL DIDFT_BUTTON [ 246 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 247 { DIDFT_OPTIONAL DIDFT_BUTTON [ 247 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 248 { DIDFT_OPTIONAL DIDFT_BUTTON [ 248 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 249 { DIDFT_OPTIONAL DIDFT_BUTTON [ 249 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 250 { DIDFT_OPTIONAL DIDFT_BUTTON [ 250 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 251 { DIDFT_OPTIONAL DIDFT_BUTTON [ 251 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 252 { DIDFT_OPTIONAL DIDFT_BUTTON [ 252 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 253 { DIDFT_OPTIONAL DIDFT_BUTTON [ 253 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 254 { DIDFT_OPTIONAL DIDFT_BUTTON [ 254 DIDFT_MAKEINSTANCE ] } 0 }
+            { GUID_Key_malloced f 255 { DIDFT_OPTIONAL DIDFT_BUTTON [ 255 DIDFT_MAKEINSTANCE ] } 0 }
+        } <DIDATAFORMAT>
+    ] unless* ] change-at ;
+
+: define-format-constants ( -- )
+    define-joystick-format-constant
+    define-mouse-format-constant
+    define-keyboard-format-constant
+    define-hid-keyboard-format-constant ;
+
+: define-constants
+    define-guid-constants
+    define-format-constants ;
+
+[ define-constants ] "windows.dinput.constants" add-init-hook
+define-constants
+
+: free-dinput-constants ( -- )
+    {
+        GUID_XAxis_malloced GUID_YAxis_malloced GUID_ZAxis_malloced
+        GUID_RxAxis_malloced GUID_RyAxis_malloced GUID_RzAxis_malloced
+        GUID_Slider_malloced GUID_Button_malloced GUID_Key_malloced GUID_POV_malloced GUID_Unknown_malloced
+        GUID_SysMouse_malloced GUID_SysKeyboard_malloced GUID_Joystick_malloced GUID_SysMouseEm_malloced
+        GUID_SysMouseEm2_malloced GUID_SysKeyboardEm_malloced GUID_SysKeyboardEm2_malloced
+    } [ global [ [ free ] when* f ] change-at ] each
+    {
+        c_dfDIKeyboard c_dfDIKeyboard_HID c_dfDIMouse2 c_dfDIJoystick2
+    } [ global [ [ DIDATAFORMAT-rgodf free ] when* f ] change-at ] each ;
+
+PRIVATE>
+
diff --git a/basis/windows/dinput/constants/tags.txt b/basis/windows/dinput/constants/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/dinput/constants/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/basis/windows/dinput/dinput.factor b/basis/windows/dinput/dinput.factor
new file mode 100755
index 0000000000..0c75f43770
--- /dev/null
+++ b/basis/windows/dinput/dinput.factor
@@ -0,0 +1,697 @@
+USING: windows.kernel32 windows.ole32 windows.com windows.com.syntax
+alien alien.c-types alien.syntax kernel system namespaces math ;
+IN: windows.dinput
+
+<<
+    os windows?
+    [ "dinput" "dinput8.dll" "stdcall" add-library ]
+    when
+>>
+
+LIBRARY: dinput
+
+TYPEDEF: void* LPDIENUMDEVICESCALLBACKW
+: LPDIENUMDEVICESCALLBACKW ( quot -- alien )
+    [ "BOOL" { "LPCDIDEVICEINSTANCEW" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+TYPEDEF: void* LPDIENUMDEVICESBYSEMANTICSCBW
+: LPDIENUMDEVICESBYSEMANTICSCBW ( quot -- alien )
+    [ "BOOL" { "LPCDIDEVICEINSTANCEW" "IDirectInputDevice8W*" "DWORD" "DWORD" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+TYPEDEF: void* LPDICONFIGUREDEVICESCALLBACK
+: LPDICONFIGUREDEVICESCALLBACK ( quot -- alien )
+    [ "BOOL" { "IUnknown*" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+TYPEDEF: void* LPDIENUMEFFECTSCALLBACKW
+: LPDIENUMEFFECTSCALLBACKW ( quot -- alien )
+    [ "BOOL" { "LPCDIEFFECTINFOW" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+TYPEDEF: void* LPDIENUMCREATEDEFFECTOBJECTSCALLBACK
+: LPDIENUMCREATEDEFFECTOBJECTSCALLBACK
+    [ "BOOL" { "LPDIRECTINPUTEFFECT" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+TYPEDEF: void* LPDIENUMEFFECTSINFILECALLBACK
+: LPDIENUMEFFECTSINFILECALLBACK
+    [ "BOOL" { "LPCDIFILEEFFECT" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+TYPEDEF: void* LPDIENUMDEVICEOBJECTSCALLBACKW
+: LPDIENUMDEVICEOBJECTSCALLBACKW
+    [ "BOOL" { "LPCDIDEVICEOBJECTINSTANCEW" "LPVOID" } "stdcall" ]
+    dip alien-callback ; inline
+
+TYPEDEF: DWORD D3DCOLOR
+
+C-STRUCT: DIDEVICEINSTANCEW
+    { "DWORD"      "dwSize" }
+    { "GUID"       "guidInstance" }
+    { "GUID"       "guidProduct" }
+    { "DWORD"      "dwDevType" }
+    { "WCHAR[260]" "tszInstanceName" }
+    { "WCHAR[260]" "tszProductName" }
+    { "GUID"       "guidFFDriver" }
+    { "WORD"       "wUsagePage" }
+    { "WORD"       "wUsage" } ;
+TYPEDEF: DIDEVICEINSTANCEW* LPDIDEVICEINSTANCEW
+TYPEDEF: DIDEVICEINSTANCEW* LPCDIDEVICEINSTANCEW
+C-UNION: DIACTION-union "LPCWSTR" "UINT" ;
+C-STRUCT: DIACTIONW
+    { "UINT_PTR"       "uAppData" }
+    { "DWORD"          "dwSemantic" }
+    { "DWORD"          "dwFlags" }
+    { "DIACTION-union" "lptszActionName-or-uResIdString" }
+    { "GUID"           "guidInstance" }
+    { "DWORD"          "dwObjID" }
+    { "DWORD"          "dwHow" } ;
+TYPEDEF: DIACTIONW* LPDIACTIONW
+TYPEDEF: DIACTIONW* LPCDIACTIONW
+C-STRUCT: DIACTIONFORMATW
+    { "DWORD"       "dwSize" }
+    { "DWORD"       "dwActionSize" }
+    { "DWORD"       "dwDataSize" }
+    { "DWORD"       "dwNumActions" }
+    { "LPDIACTIONW" "rgoAction" }
+    { "GUID"        "guidActionMap" }
+    { "DWORD"       "dwGenre" }
+    { "DWORD"       "dwBufferSize" }
+    { "LONG"        "lAxisMin" }
+    { "LONG"        "lAxisMax" }
+    { "HINSTANCE"   "hInstString" }
+    { "FILETIME"    "ftTimeStamp" }
+    { "DWORD"       "dwCRC" }
+    { "WCHAR[260]"  "tszActionMap" } ;
+TYPEDEF: DIACTIONFORMATW* LPDIACTIONFORMATW
+TYPEDEF: DIACTIONFORMATW* LPCDIACTIONFORMATW
+C-STRUCT: DICOLORSET
+    { "DWORD"    "dwSize" }
+    { "D3DCOLOR" "cTextFore" }
+    { "D3DCOLOR" "cTextHighlight" }
+    { "D3DCOLOR" "cCalloutLine" }
+    { "D3DCOLOR" "cCalloutHighlight" }
+    { "D3DCOLOR" "cBorder" }
+    { "D3DCOLOR" "cControlFill" }
+    { "D3DCOLOR" "cHighlightFill" }
+    { "D3DCOLOR" "cAreaFill" } ;
+TYPEDEF: DICOLORSET* LPDICOLORSET
+TYPEDEF: DICOLORSET* LPCDICOLORSET
+
+C-STRUCT: DICONFIGUREDEVICESPARAMSW
+    { "DWORD"             "dwSize" }
+    { "DWORD"             "dwcUsers" }
+    { "LPWSTR"            "lptszUserNames" }
+    { "DWORD"             "dwcFormats" }
+    { "LPDIACTIONFORMATW" "lprgFormats" }
+    { "HWND"              "hwnd" }
+    { "DICOLORSET"        "dics" }
+    { "IUnknown*"         "lpUnkDDSTarget" } ;
+TYPEDEF: DICONFIGUREDEVICESPARAMSW* LPDICONFIGUREDEVICESPARAMSW
+TYPEDEF: DICONFIGUREDEVICESPARAMSW* LPDICONFIGUREDEVICESPARAMSW
+
+C-STRUCT: DIDEVCAPS
+    { "DWORD" "dwSize" }
+    { "DWORD" "dwFlags" }
+    { "DWORD" "dwDevType" }
+    { "DWORD" "dwAxes" }
+    { "DWORD" "dwButtons" }
+    { "DWORD" "dwPOVs" }
+    { "DWORD" "dwFFSamplePeriod" }
+    { "DWORD" "dwFFMinTimeResolution" }
+    { "DWORD" "dwFirmwareRevision" }
+    { "DWORD" "dwHardwareRevision" }
+    { "DWORD" "dwFFDriverVersion" } ;
+TYPEDEF: DIDEVCAPS* LPDIDEVCAPS
+TYPEDEF: DIDEVCAPS* LPCDIDEVCAPS
+C-STRUCT: DIDEVICEOBJECTINSTANCEW
+    { "DWORD" "dwSize" }
+    { "GUID" "guidType" }
+    { "DWORD" "dwOfs" }
+    { "DWORD" "dwType" }
+    { "DWORD" "dwFlags" }
+    { "WCHAR[260]" "tszName" }
+    { "DWORD" "dwFFMaxForce" }
+    { "DWORD" "dwFFForceResolution" }
+    { "WORD" "wCollectionNumber" }
+    { "WORD" "wDesignatorIndex" }
+    { "WORD" "wUsagePage" }
+    { "WORD" "wUsage" }
+    { "DWORD" "dwDimension" }
+    { "WORD" "wExponent" }
+    { "WORD" "wReportId" } ;
+TYPEDEF: DIDEVICEOBJECTINSTANCEW* LPDIDEVICEOBJECTINSTANCEW
+TYPEDEF: DIDEVICEOBJECTINSTANCEW* LPCDIDEVICEOBJECTINSTANCEW
+C-STRUCT: DIDEVICEOBJECTDATA
+    { "DWORD"    "dwOfs" }
+    { "DWORD"    "dwData" }
+    { "DWORD"    "dwTimeStamp" }
+    { "DWORD"    "dwSequence" }
+    { "UINT_PTR" "uAppData" } ;
+TYPEDEF: DIDEVICEOBJECTDATA* LPDIDEVICEOBJECTDATA
+TYPEDEF: DIDEVICEOBJECTDATA* LPCDIDEVICEOBJECTDATA
+C-STRUCT: DIOBJECTDATAFORMAT
+    { "GUID*" "pguid" }
+    { "DWORD" "dwOfs" }
+    { "DWORD" "dwType" }
+    { "DWORD" "dwFlags" } ;
+TYPEDEF: DIOBJECTDATAFORMAT* LPDIOBJECTDATAFORMAT
+TYPEDEF: DIOBJECTDATAFORMAT* LPCDIOBJECTDATAFORMAT
+C-STRUCT: DIDATAFORMAT
+    { "DWORD" "dwSize" }
+    { "DWORD" "dwObjSize" }
+    { "DWORD" "dwFlags" }
+    { "DWORD" "dwDataSize" }
+    { "DWORD" "dwNumObjs" }
+    { "LPDIOBJECTDATAFORMAT" "rgodf" } ;
+TYPEDEF: DIDATAFORMAT* LPDIDATAFORMAT
+TYPEDEF: DIDATAFORMAT* LPCDIDATAFORMAT
+C-STRUCT: DIPROPHEADER
+    { "DWORD" "dwSize" }
+    { "DWORD" "dwHeaderSize" }
+    { "DWORD" "dwObj" }
+    { "DWORD" "dwHow" } ;
+TYPEDEF: DIPROPHEADER* LPDIPROPHEADER
+TYPEDEF: DIPROPHEADER* LPCDIPROPHEADER
+C-STRUCT: DIPROPDWORD
+    { "DIPROPHEADER" "diph" }
+    { "DWORD"        "dwData" } ;
+TYPEDEF: DIPROPDWORD* LPDIPROPDWORD
+TYPEDEF: DIPROPDWORD* LPCDIPROPDWORD
+C-STRUCT: DIPROPPOINTER
+    { "DIPROPHEADER" "diph" }
+    { "UINT_PTR" "uData" } ;
+TYPEDEF: DIPROPPOINTER* LPDIPROPPOINTER
+TYPEDEF: DIPROPPOINTER* LPCDIPROPPOINTER
+C-STRUCT: DIPROPRANGE
+    { "DIPROPHEADER" "diph" }
+    { "LONG" "lMin" }
+    { "LONG" "lMax" } ;
+TYPEDEF: DIPROPRANGE* LPDIPROPRANGE
+TYPEDEF: DIPROPRANGE* LPCDIPROPRANGE
+C-STRUCT: DIPROPCAL
+    { "DIPROPHEADER" "diph" }
+    { "LONG" "lMin" }
+    { "LONG" "lCenter" }
+    { "LONG" "lMax" } ;
+TYPEDEF: DIPROPCAL* LPDIPROPCAL
+TYPEDEF: DIPROPCAL* LPCDIPROPCAL
+C-STRUCT: DIPROPGUIDANDPATH
+    { "DIPROPHEADER" "diph" }
+    { "GUID" "guidClass" }
+    { "WCHAR[260]"   "wszPath" } ;
+TYPEDEF: DIPROPGUIDANDPATH* LPDIPROPGUIDANDPATH
+TYPEDEF: DIPROPGUIDANDPATH* LPCDIPROPGUIDANDPATH
+C-STRUCT: DIPROPSTRING
+    { "DIPROPHEADER" "diph" }
+    { "WCHAR[260]"   "wsz" } ;
+TYPEDEF: DIPROPSTRING* LPDIPROPSTRING
+TYPEDEF: DIPROPSTRING* LPCDIPROPSTRING
+C-STRUCT: CPOINT
+    { "LONG" "lP" }
+    { "DWORD" "dwLog" } ;
+C-STRUCT: DIPROPCPOINTS
+    { "DIPROPHEADER" "diph" }
+    { "DWORD" "dwCPointsNum" }
+    { "CPOINT[8]" "cp" } ;
+TYPEDEF: DIPROPCPOINTS* LPDIPROPCPOINTS
+TYPEDEF: DIPROPCPOINTS* LPCDIPROPCPOINTS
+C-STRUCT: DIENVELOPE
+    { "DWORD" "dwSize" }
+    { "DWORD" "dwAttackLevel" }
+    { "DWORD" "dwAttackTime" }
+    { "DWORD" "dwFadeLevel" }
+    { "DWORD" "dwFadeTime" } ;
+TYPEDEF: DIENVELOPE* LPDIENVELOPE
+TYPEDEF: DIENVELOPE* LPCDIENVELOPE
+C-STRUCT: DIEFFECT
+    { "DWORD" "dwSize" }
+    { "DWORD" "dwFlags" }
+    { "DWORD" "dwDuration" }
+    { "DWORD" "dwSamplePeriod" }
+    { "DWORD" "dwGain" }
+    { "DWORD" "dwTriggerButton" }
+    { "DWORD" "dwTriggerRepeatInterval" }
+    { "DWORD" "cAxes" }
+    { "LPDWORD" "rgdwAxes" }
+    { "LPLONG" "rglDirection" }
+    { "LPDIENVELOPE" "lpEnvelope" }
+    { "DWORD" "cbTypeSpecificParams" }
+    { "LPVOID" "lpvTypeSpecificParams" }
+    { "DWORD" "dwStartDelay" } ;
+TYPEDEF: DIEFFECT* LPDIEFFECT
+TYPEDEF: DIEFFECT* LPCDIEFFECT
+C-STRUCT: DIEFFECTINFOW
+    { "DWORD"      "dwSize" }
+    { "GUID"       "guid" }
+    { "DWORD"      "dwEffType" }
+    { "DWORD"      "dwStaticParams" }
+    { "DWORD"      "dwDynamicParams" }
+    { "WCHAR[260]" "tszName" } ;
+TYPEDEF: DIEFFECTINFOW* LPDIEFFECTINFOW
+TYPEDEF: DIEFFECTINFOW* LPCDIEFFECTINFOW
+C-STRUCT: DIEFFESCAPE
+    { "DWORD"  "dwSize" }
+    { "DWORD"  "dwCommand" }
+    { "LPVOID" "lpvInBuffer" }
+    { "DWORD"  "cbInBuffer" }
+    { "LPVOID" "lpvOutBuffer" }
+    { "DWORD"  "cbOutBuffer" } ;
+TYPEDEF: DIEFFESCAPE* LPDIEFFESCAPE
+TYPEDEF: DIEFFESCAPE* LPCDIEFFESCAPE
+C-STRUCT: DIFILEEFFECT
+    { "DWORD"       "dwSize" }
+    { "GUID"        "GuidEffect" }
+    { "LPCDIEFFECT" "lpDiEffect" }
+    { "CHAR[260]"   "szFriendlyName" } ;
+TYPEDEF: DIFILEEFFECT* LPDIFILEEFFECT
+TYPEDEF: DIFILEEFFECT* LPCDIFILEEFFECT
+C-STRUCT: DIDEVICEIMAGEINFOW
+    { "WCHAR[260]" "tszImagePath" }
+    { "DWORD"      "dwFlags" }
+    { "DWORD"      "dwViewID" }
+    { "RECT"       "rcOverlay" }
+    { "DWORD"      "dwObjID" }
+    { "DWORD"      "dwcValidPts" }
+    { "POINT[5]"   "rgptCalloutLine" }
+    { "RECT"       "rcCalloutRect" }
+    { "DWORD"      "dwTextAlign" } ;
+TYPEDEF: DIDEVICEIMAGEINFOW* LPDIDEVICEIMAGEINFOW
+TYPEDEF: DIDEVICEIMAGEINFOW* LPCDIDEVICEIMAGEINFOW
+C-STRUCT: DIDEVICEIMAGEINFOHEADERW
+    { "DWORD" "dwSize" }
+    { "DWORD" "dwSizeImageInfo" }
+    { "DWORD" "dwcViews" }
+    { "DWORD" "dwcButtons" }
+    { "DWORD" "dwcAxes" }
+    { "DWORD" "dwcPOVs" }
+    { "DWORD" "dwBufferSize" }
+    { "DWORD" "dwBufferUsed" }
+    { "DIDEVICEIMAGEINFOW*" "lprgImageInfoArray" } ;
+TYPEDEF: DIDEVICEIMAGEINFOHEADERW* LPDIDEVICEIMAGEINFOHEADERW
+TYPEDEF: DIDEVICEIMAGEINFOHEADERW* LPCDIDEVICEIMAGEINFOHEADERW
+
+C-STRUCT: DIMOUSESTATE2
+    { "LONG"    "lX" }
+    { "LONG"    "lY" }
+    { "LONG"    "lZ" }
+    { "BYTE[8]" "rgbButtons" } ;
+TYPEDEF: DIMOUSESTATE2* LPDIMOUSESTATE2
+TYPEDEF: DIMOUSESTATE2* LPCDIMOUSESTATE2
+
+C-STRUCT: DIJOYSTATE2
+    { "LONG"      "lX" }
+    { "LONG"      "lY" }
+    { "LONG"      "lZ" }
+    { "LONG"      "lRx" }
+    { "LONG"      "lRy" }
+    { "LONG"      "lRz" }
+    { "LONG[2]"   "rglSlider" }
+    { "DWORD[4]"  "rgdwPOV" }
+    { "BYTE[128]" "rgbButtons" }
+    { "LONG"      "lVX" }
+    { "LONG"      "lVY" }
+    { "LONG"      "lVZ" }
+    { "LONG"      "lVRx" }
+    { "LONG"      "lVRy" }
+    { "LONG"      "lVRz" }
+    { "LONG[2]"   "rglVSlider" }
+    { "LONG"      "lAX" }
+    { "LONG"      "lAY" }
+    { "LONG"      "lAZ" }
+    { "LONG"      "lARx" }
+    { "LONG"      "lARy" }
+    { "LONG"      "lARz" }
+    { "LONG[2]"   "rglASlider" }
+    { "LONG"      "lFX" }
+    { "LONG"      "lFY" }
+    { "LONG"      "lFZ" }
+    { "LONG"      "lFRx" }
+    { "LONG"      "lFRy" }
+    { "LONG"      "lFRz" }
+    { "LONG[2]"   "rglFSlider" } ;
+TYPEDEF: DIJOYSTATE2* LPDIJOYSTATE2
+TYPEDEF: DIJOYSTATE2* LPCDIJOYSTATE2
+
+COM-INTERFACE: IDirectInputEffect IUnknown {E7E1F7C0-88D2-11D0-9AD0-00A0C9A06E35}
+    HRESULT Initialize ( HINSTANCE hinst, DWORD dwVersion, REFGUID rguid )
+    HRESULT GetEffectGuid ( LPGUID pguid )
+    HRESULT GetParameters ( LPDIEFFECT peff, DWORD dwFlags )
+    HRESULT SetParameters ( LPCDIEFFECT peff, DWORD dwFlags )
+    HRESULT Start ( DWORD dwIterations, DWORD dwFlags )
+    HRESULT Stop ( )
+    HRESULT GetEffectStatus ( LPDWORD pdwFlags )
+    HRESULT Download ( )
+    HRESULT Unload ( )
+    HRESULT Escape ( LPDIEFFESCAPE pesc ) ;
+
+COM-INTERFACE: IDirectInputDevice8W IUnknown {54D41081-DC15-4833-A41B-748F73A38179}
+    HRESULT GetCapabilities ( LPDIDEVCAPS lpDIDeviceCaps )
+    HRESULT EnumObjects ( LPDIENUMDEVICEOBJECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags )
+    HRESULT GetProperty ( REFGUID rguidProp, LPDIPROPHEADER pdiph )
+    HRESULT SetProperty ( REFGUID rguidProp, LPCDIPROPHEADER pdiph )
+    HRESULT Acquire ( )
+    HRESULT Unacquire ( )
+    HRESULT GetDeviceState ( DWORD cbData, LPVOID lpvData )
+    HRESULT GetDeviceData ( DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags )
+    HRESULT SetDataFormat ( LPCDIDATAFORMAT lpdf )
+    HRESULT SetEventNotification ( HANDLE hEvent )
+    HRESULT SetCooperativeLevel ( HWND hwnd, DWORD dwFlags )
+    HRESULT GetObjectInfo ( LPDIDEVICEOBJECTINSTANCEW rdidoi, DWORD dwObj, DWORD dwHow )
+    HRESULT GetDeviceInfo ( LPDIDEVICEINSTANCEW pdidi )
+    HRESULT RunControlPanel ( HWND hwndOwner, DWORD dwFlags )
+    HRESULT Initialize ( HINSTANCE hinst, DWORD dwVersion, REFGUID rguid )
+    HRESULT CreateEffect ( REFGUID rguid, LPCDIEFFECT lpeff, IDirectInputEffect** ppdeff, LPUNKNOWN punkOuter )
+    HRESULT EnumEffects ( LPDIENUMEFFECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwEffType )
+    HRESULT GetEffectInfo ( LPDIEFFECTINFOW pdei, REFGUID rguid )
+    HRESULT GetForceFeedbackState ( LPDWORD pdwOut )
+    HRESULT SendForceFeedbackCommand ( DWORD dwFlags )
+    HRESULT EnumCreatedEffectObjects ( LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl )
+    HRESULT Escape ( LPDIEFFESCAPE pesc )
+    HRESULT Poll ( )
+    HRESULT SendDeviceData ( DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl )
+    HRESULT EnumEffectsInFile ( LPCWSTR lpszFileName, LPDIENUMEFFECTSINFILECALLBACK lpCallback, LPVOID pvRef, DWORD dwFlags )
+    HRESULT WriteEffectToFile ( LPCWSTR lpszFileName, DWORD dwEntries, LPDIFILEEFFECT rgDiFileEffect, DWORD dwFlags )
+    HRESULT BuildActionMap ( LPDIACTIONFORMATW lpdiaf, LPCWSTR lpszUserName, DWORD dwFlags )
+    HRESULT SetActionMap ( LPDIACTIONFORMATW lpdiActionFormat, LPCWSTR lpwszUserName, DWORD dwFlags )
+    HRESULT GetImageInfo ( LPDIDEVICEIMAGEINFOHEADERW lpdiDeviceImageInfoHeader ) ;
+
+COM-INTERFACE: IDirectInput8W IUnknown {BF798031-483A-4DA2-AA99-5D64ED369700}
+    HRESULT CreateDevice ( REFGUID rguid, IDirectInputDevice8W** lplpDevice, LPUNKNOWN pUnkOuter )
+    HRESULT EnumDevices ( DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags )
+    HRESULT GetDeviceStatus ( REFGUID rguidInstance )
+    HRESULT RunControlPanel ( HWND hwndOwner, DWORD dwFlags )
+    HRESULT Initialize ( HINSTANCE hinst, DWORD dwVersion )
+    HRESULT FindDevice ( REFGUID rguidClass, LPCWSTR pwszName, LPGUID pguidInstance )
+    HRESULT EnumDevicesBySemantics ( LPCWSTR pwszUserName, LPDIACTIONFORMATW lpdiActionFormat, LPDIENUMDEVICESBYSEMANTICSCBW lpCallback, LPVOID pvRef, DWORD dwFlags )
+    HRESULT ConfigureDevices ( LPDICONFIGUREDEVICESCALLBACK lpdiCallback, LPDICONFIGUREDEVICESPARAMSW lpdiCDParams, DWORD dwFlags, LPVOID pvRefData ) ;
+
+FUNCTION: HRESULT DirectInput8Create ( HINSTANCE hinst, DWORD dwVersion, REFIID riidtlf, LPVOID* ppvOut, LPUNKNOWN punkOuter ) ;
+
+: DIRECTINPUT_VERSION HEX: 0800 ; inline
+
+: DI8DEVCLASS_ALL             0 ; inline
+: DI8DEVCLASS_DEVICE          1 ; inline
+: DI8DEVCLASS_POINTER         2 ; inline
+: DI8DEVCLASS_KEYBOARD        3 ; inline
+: DI8DEVCLASS_GAMECTRL        4 ; inline
+
+: DIEDFL_ALLDEVICES       HEX: 00000000 ; inline
+: DIEDFL_ATTACHEDONLY     HEX: 00000001 ; inline
+: DIEDFL_FORCEFEEDBACK    HEX: 00000100 ; inline
+: DIEDFL_INCLUDEALIASES   HEX: 00010000 ; inline
+: DIEDFL_INCLUDEPHANTOMS  HEX: 00020000 ; inline
+: DIEDFL_INCLUDEHIDDEN    HEX: 00040000 ; inline
+
+: DIENUM_STOP             0 ; inline
+: DIENUM_CONTINUE         1 ; inline
+
+: DIDF_ABSAXIS            1 ;
+: DIDF_RELAXIS            2 ;
+
+: DIDFT_ALL           HEX: 00000000 ; inline
+
+: DIDFT_RELAXIS       HEX: 00000001 ; inline
+: DIDFT_ABSAXIS       HEX: 00000002 ; inline
+: DIDFT_AXIS          HEX: 00000003 ; inline
+
+: DIDFT_PSHBUTTON     HEX: 00000004 ; inline
+: DIDFT_TGLBUTTON     HEX: 00000008 ; inline
+: DIDFT_BUTTON        HEX: 0000000C ; inline
+
+: DIDFT_POV           HEX: 00000010 ; inline
+: DIDFT_COLLECTION    HEX: 00000040 ; inline
+: DIDFT_NODATA        HEX: 00000080 ; inline
+
+: DIDFT_ANYINSTANCE   HEX: 00FFFF00 ; inline
+: DIDFT_INSTANCEMASK  DIDFT_ANYINSTANCE ; inline
+: DIDFT_MAKEINSTANCE ( n -- instance ) 8 shift                   ; inline
+: DIDFT_GETTYPE      ( n -- type     ) HEX: FF bitand            ; inline
+: DIDFT_GETINSTANCE  ( n -- instance ) -8 shift HEX: FFFF bitand ; inline
+: DIDFT_FFACTUATOR        HEX: 01000000 ; inline
+: DIDFT_FFEFFECTTRIGGER   HEX: 02000000 ; inline
+: DIDFT_OUTPUT            HEX: 10000000 ; inline
+: DIDFT_VENDORDEFINED     HEX: 04000000 ; inline
+: DIDFT_ALIAS             HEX: 08000000 ; inline
+: DIDFT_OPTIONAL          HEX: 80000000 ; inline
+
+: DIDFT_ENUMCOLLECTION ( n -- instance ) 8 shift HEX: FFFF bitand ; inline
+: DIDFT_NOCOLLECTION      HEX: 00FFFF00 ; inline
+
+: DIDOI_FFACTUATOR        HEX: 00000001 ; inline
+: DIDOI_FFEFFECTTRIGGER   HEX: 00000002 ; inline
+: DIDOI_POLLED            HEX: 00008000 ; inline
+: DIDOI_ASPECTPOSITION    HEX: 00000100 ; inline
+: DIDOI_ASPECTVELOCITY    HEX: 00000200 ; inline
+: DIDOI_ASPECTACCEL       HEX: 00000300 ; inline
+: DIDOI_ASPECTFORCE       HEX: 00000400 ; inline
+: DIDOI_ASPECTMASK        HEX: 00000F00 ; inline
+: DIDOI_GUIDISUSAGE       HEX: 00010000 ; inline
+
+: DISCL_EXCLUSIVE     HEX: 00000001 ; inline
+: DISCL_NONEXCLUSIVE  HEX: 00000002 ; inline
+: DISCL_FOREGROUND    HEX: 00000004 ; inline
+: DISCL_BACKGROUND    HEX: 00000008 ; inline
+: DISCL_NOWINKEY      HEX: 00000010 ; inline
+
+: DIK_ESCAPE          HEX: 01 ; inline
+: DIK_1               HEX: 02 ; inline
+: DIK_2               HEX: 03 ; inline
+: DIK_3               HEX: 04 ; inline
+: DIK_4               HEX: 05 ; inline
+: DIK_5               HEX: 06 ; inline
+: DIK_6               HEX: 07 ; inline
+: DIK_7               HEX: 08 ; inline
+: DIK_8               HEX: 09 ; inline
+: DIK_9               HEX: 0A ; inline
+: DIK_0               HEX: 0B ; inline
+: DIK_MINUS           HEX: 0C ; inline
+: DIK_EQUALS          HEX: 0D ; inline
+: DIK_BACK            HEX: 0E ; inline
+: DIK_TAB             HEX: 0F ; inline
+: DIK_Q               HEX: 10 ; inline
+: DIK_W               HEX: 11 ; inline
+: DIK_E               HEX: 12 ; inline
+: DIK_R               HEX: 13 ; inline
+: DIK_T               HEX: 14 ; inline
+: DIK_Y               HEX: 15 ; inline
+: DIK_U               HEX: 16 ; inline
+: DIK_I               HEX: 17 ; inline
+: DIK_O               HEX: 18 ; inline
+: DIK_P               HEX: 19 ; inline
+: DIK_LBRACKET        HEX: 1A ; inline
+: DIK_RBRACKET        HEX: 1B ; inline
+: DIK_RETURN          HEX: 1C ; inline
+: DIK_LCONTROL        HEX: 1D ; inline
+: DIK_A               HEX: 1E ; inline
+: DIK_S               HEX: 1F ; inline
+: DIK_D               HEX: 20 ; inline
+: DIK_F               HEX: 21 ; inline
+: DIK_G               HEX: 22 ; inline
+: DIK_H               HEX: 23 ; inline
+: DIK_J               HEX: 24 ; inline
+: DIK_K               HEX: 25 ; inline
+: DIK_L               HEX: 26 ; inline
+: DIK_SEMICOLON       HEX: 27 ; inline
+: DIK_APOSTROPHE      HEX: 28 ; inline
+: DIK_GRAVE           HEX: 29 ; inline
+: DIK_LSHIFT          HEX: 2A ; inline
+: DIK_BACKSLASH       HEX: 2B ; inline
+: DIK_Z               HEX: 2C ; inline
+: DIK_X               HEX: 2D ; inline
+: DIK_C               HEX: 2E ; inline
+: DIK_V               HEX: 2F ; inline
+: DIK_B               HEX: 30 ; inline
+: DIK_N               HEX: 31 ; inline
+: DIK_M               HEX: 32 ; inline
+: DIK_COMMA           HEX: 33 ; inline
+: DIK_PERIOD          HEX: 34 ; inline
+: DIK_SLASH           HEX: 35 ; inline
+: DIK_RSHIFT          HEX: 36 ; inline
+: DIK_MULTIPLY        HEX: 37 ; inline
+: DIK_LMENU           HEX: 38 ; inline
+: DIK_SPACE           HEX: 39 ; inline
+: DIK_CAPITAL         HEX: 3A ; inline
+: DIK_F1              HEX: 3B ; inline
+: DIK_F2              HEX: 3C ; inline
+: DIK_F3              HEX: 3D ; inline
+: DIK_F4              HEX: 3E ; inline
+: DIK_F5              HEX: 3F ; inline
+: DIK_F6              HEX: 40 ; inline
+: DIK_F7              HEX: 41 ; inline
+: DIK_F8              HEX: 42 ; inline
+: DIK_F9              HEX: 43 ; inline
+: DIK_F10             HEX: 44 ; inline
+: DIK_NUMLOCK         HEX: 45 ; inline
+: DIK_SCROLL          HEX: 46 ; inline
+: DIK_NUMPAD7         HEX: 47 ; inline
+: DIK_NUMPAD8         HEX: 48 ; inline
+: DIK_NUMPAD9         HEX: 49 ; inline
+: DIK_SUBTRACT        HEX: 4A ; inline
+: DIK_NUMPAD4         HEX: 4B ; inline
+: DIK_NUMPAD5         HEX: 4C ; inline
+: DIK_NUMPAD6         HEX: 4D ; inline
+: DIK_ADD             HEX: 4E ; inline
+: DIK_NUMPAD1         HEX: 4F ; inline
+: DIK_NUMPAD2         HEX: 50 ; inline
+: DIK_NUMPAD3         HEX: 51 ; inline
+: DIK_NUMPAD0         HEX: 52 ; inline
+: DIK_DECIMAL         HEX: 53 ; inline
+: DIK_OEM_102         HEX: 56 ; inline
+: DIK_F11             HEX: 57 ; inline
+: DIK_F12             HEX: 58 ; inline
+: DIK_F13             HEX: 64 ; inline
+: DIK_F14             HEX: 65 ; inline
+: DIK_F15             HEX: 66 ; inline
+: DIK_KANA            HEX: 70 ; inline
+: DIK_ABNT_C1         HEX: 73 ; inline
+: DIK_CONVERT         HEX: 79 ; inline
+: DIK_NOCONVERT       HEX: 7B ; inline
+: DIK_YEN             HEX: 7D ; inline
+: DIK_ABNT_C2         HEX: 7E ; inline
+: DIK_NUMPADEQUALS    HEX: 8D ; inline
+: DIK_PREVTRACK       HEX: 90 ; inline
+: DIK_AT              HEX: 91 ; inline
+: DIK_COLON           HEX: 92 ; inline
+: DIK_UNDERLINE       HEX: 93 ; inline
+: DIK_KANJI           HEX: 94 ; inline
+: DIK_STOP            HEX: 95 ; inline
+: DIK_AX              HEX: 96 ; inline
+: DIK_UNLABELED       HEX: 97 ; inline
+: DIK_NEXTTRACK       HEX: 99 ; inline
+: DIK_NUMPADENTER     HEX: 9C ; inline
+: DIK_RCONTROL        HEX: 9D ; inline
+: DIK_MUTE            HEX: A0 ; inline
+: DIK_CALCULATOR      HEX: A1 ; inline
+: DIK_PLAYPAUSE       HEX: A2 ; inline
+: DIK_MEDIASTOP       HEX: A4 ; inline
+: DIK_VOLUMEDOWN      HEX: AE ; inline
+: DIK_VOLUMEUP        HEX: B0 ; inline
+: DIK_WEBHOME         HEX: B2 ; inline
+: DIK_NUMPADCOMMA     HEX: B3 ; inline
+: DIK_DIVIDE          HEX: B5 ; inline
+: DIK_SYSRQ           HEX: B7 ; inline
+: DIK_RMENU           HEX: B8 ; inline
+: DIK_PAUSE           HEX: C5 ; inline
+: DIK_HOME            HEX: C7 ; inline
+: DIK_UP              HEX: C8 ; inline
+: DIK_PRIOR           HEX: C9 ; inline
+: DIK_LEFT            HEX: CB ; inline
+: DIK_RIGHT           HEX: CD ; inline
+: DIK_END             HEX: CF ; inline
+: DIK_DOWN            HEX: D0 ; inline
+: DIK_NEXT            HEX: D1 ; inline
+: DIK_INSERT          HEX: D2 ; inline
+: DIK_DELETE          HEX: D3 ; inline
+: DIK_LWIN            HEX: DB ; inline
+: DIK_RWIN            HEX: DC ; inline
+: DIK_APPS            HEX: DD ; inline
+: DIK_POWER           HEX: DE ; inline
+: DIK_SLEEP           HEX: DF ; inline
+: DIK_WAKE            HEX: E3 ; inline
+: DIK_WEBSEARCH       HEX: E5 ; inline
+: DIK_WEBFAVORITES    HEX: E6 ; inline
+: DIK_WEBREFRESH      HEX: E7 ; inline
+: DIK_WEBSTOP         HEX: E8 ; inline
+: DIK_WEBFORWARD      HEX: E9 ; inline
+: DIK_WEBBACK         HEX: EA ; inline
+: DIK_MYCOMPUTER      HEX: EB ; inline
+: DIK_MAIL            HEX: EC ; inline
+: DIK_MEDIASELECT     HEX: ED ; inline
+
+: DIK_BACKSPACE       DIK_BACK ; inline
+: DIK_NUMPADSTAR      DIK_MULTIPLY ; inline
+: DIK_LALT            DIK_LMENU ; inline
+: DIK_CAPSLOCK        DIK_CAPITAL ; inline
+: DIK_NUMPADMINUS     DIK_SUBTRACT ; inline
+: DIK_NUMPADPLUS      DIK_ADD ; inline
+: DIK_NUMPADPERIOD    DIK_DECIMAL ; inline
+: DIK_NUMPADSLASH     DIK_DIVIDE ; inline
+: DIK_RALT            DIK_RMENU ; inline
+: DIK_UPARROW         DIK_UP ; inline
+: DIK_PGUP            DIK_PRIOR ; inline
+: DIK_LEFTARROW       DIK_LEFT ; inline
+: DIK_RIGHTARROW      DIK_RIGHT ; inline
+: DIK_DOWNARROW       DIK_DOWN ; inline
+: DIK_PGDN            DIK_NEXT ; inline
+
+: DIK_CIRCUMFLEX      DIK_PREVTRACK ; inline
+
+: DI8DEVTYPE_DEVICE           HEX: 11 ; inline
+: DI8DEVTYPE_MOUSE            HEX: 12 ; inline
+: DI8DEVTYPE_KEYBOARD         HEX: 13 ; inline
+: DI8DEVTYPE_JOYSTICK         HEX: 14 ; inline
+: DI8DEVTYPE_GAMEPAD          HEX: 15 ; inline
+: DI8DEVTYPE_DRIVING          HEX: 16 ; inline
+: DI8DEVTYPE_FLIGHT           HEX: 17 ; inline
+: DI8DEVTYPE_1STPERSON        HEX: 18 ; inline
+: DI8DEVTYPE_DEVICECTRL       HEX: 19 ; inline
+: DI8DEVTYPE_SCREENPOINTER    HEX: 1A ; inline
+: DI8DEVTYPE_REMOTE           HEX: 1B ; inline
+: DI8DEVTYPE_SUPPLEMENTAL     HEX: 1C ; inline
+
+: GET_DIDEVICE_TYPE ( dwType -- type ) HEX: FF bitand ; inline
+
+: DIPROPRANGE_NOMIN       HEX: 80000000 ; inline
+: DIPROPRANGE_NOMAX       HEX: 7FFFFFFF ; inline
+: MAXCPOINTSNUM           8 ; inline
+
+: DIPH_DEVICE             0 ; inline
+: DIPH_BYOFFSET           1 ; inline
+: DIPH_BYID               2 ; inline
+: DIPH_BYUSAGE            3 ; inline
+
+: DIMAKEUSAGEDWORD ( UsagePage Usage -- DWORD ) 16 shift bitor ; inline
+
+: DIPROP_BUFFERSIZE           1 <alien> ; inline
+: DIPROP_AXISMODE             2 <alien> ; inline
+
+: DIPROPAXISMODE_ABS      0 ; inline
+: DIPROPAXISMODE_REL      1 ; inline
+
+: DIPROP_GRANULARITY          3 <alien> ; inline
+: DIPROP_RANGE                4 <alien> ; inline
+: DIPROP_DEADZONE             5 <alien> ; inline
+: DIPROP_SATURATION           6 <alien> ; inline
+: DIPROP_FFGAIN               7 <alien> ; inline
+: DIPROP_FFLOAD               8 <alien> ; inline
+: DIPROP_AUTOCENTER           9 <alien> ; inline
+
+: DIPROPAUTOCENTER_OFF    0 ; inline
+: DIPROPAUTOCENTER_ON     1 ; inline
+
+: DIPROP_CALIBRATIONMODE     10 <alien> ; inline
+
+: DIPROPCALIBRATIONMODE_COOKED    0 ; inline
+: DIPROPCALIBRATIONMODE_RAW       1 ; inline
+
+: DIPROP_CALIBRATION         11 <alien> ; inline
+: DIPROP_GUIDANDPATH         12 <alien> ; inline
+: DIPROP_INSTANCENAME        13 <alien> ; inline
+: DIPROP_PRODUCTNAME         14 <alien> ; inline
+: DIPROP_JOYSTICKID          15 <alien> ; inline
+: DIPROP_GETPORTDISPLAYNAME  16 <alien> ; inline
+: DIPROP_PHYSICALRANGE       18 <alien> ; inline
+: DIPROP_LOGICALRANGE        19 <alien> ; inline
+: DIPROP_KEYNAME             20 <alien> ; inline
+: DIPROP_CPOINTS             21 <alien> ; inline
+: DIPROP_APPDATA             22 <alien> ; inline
+: DIPROP_SCANCODE            23 <alien> ; inline
+: DIPROP_VIDPID              24 <alien> ; inline
+: DIPROP_USERNAME            25 <alien> ; inline
+: DIPROP_TYPENAME            26 <alien> ; inline
+
+: GUID_XAxis          GUID: {A36D02E0-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_YAxis          GUID: {A36D02E1-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_ZAxis          GUID: {A36D02E2-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_RxAxis         GUID: {A36D02F4-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_RyAxis         GUID: {A36D02F5-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_RzAxis         GUID: {A36D02E3-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_Slider         GUID: {A36D02E4-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_Button         GUID: {A36D02F0-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_Key            GUID: {55728220-D33C-11CF-BFC7-444553540000} ; inline
+: GUID_POV            GUID: {A36D02F2-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_Unknown        GUID: {A36D02F3-C9F3-11CF-BFC7-444553540000} ; inline
+: GUID_SysMouse       GUID: {6F1D2B60-D5A0-11CF-BFC7-444553540000} ; inline
+: GUID_SysKeyboard    GUID: {6F1D2B61-D5A0-11CF-BFC7-444553540000} ; inline
+: GUID_Joystick       GUID: {6F1D2B70-D5A0-11CF-BFC7-444553540000} ; inline
+: GUID_SysMouseEm     GUID: {6F1D2B80-D5A0-11CF-BFC7-444553540000} ; inline
+: GUID_SysMouseEm2    GUID: {6F1D2B81-D5A0-11CF-BFC7-444553540000} ; inline
+: GUID_SysKeyboardEm  GUID: {6F1D2B82-D5A0-11CF-BFC7-444553540000} ; inline
+: GUID_SysKeyboardEm2 GUID: {6F1D2B83-D5A0-11CF-BFC7-444553540000} ; inline
diff --git a/basis/windows/dinput/summary.txt b/basis/windows/dinput/summary.txt
new file mode 100755
index 0000000000..7747560f97
--- /dev/null
+++ b/basis/windows/dinput/summary.txt
@@ -0,0 +1 @@
+DirectInput bindings
diff --git a/extra/windows/tags.txt b/basis/windows/dinput/tags.txt
old mode 100644
new mode 100755
similarity index 60%
rename from extra/windows/tags.txt
rename to basis/windows/dinput/tags.txt
index 5aebfa6848..1431506222
--- a/extra/windows/tags.txt
+++ b/basis/windows/dinput/tags.txt
@@ -1,2 +1,3 @@
+unportable
 windows
 bindings
diff --git a/extra/windows/dragdrop-listener/dragdrop-listener.factor b/basis/windows/dragdrop-listener/dragdrop-listener.factor
similarity index 100%
rename from extra/windows/dragdrop-listener/dragdrop-listener.factor
rename to basis/windows/dragdrop-listener/dragdrop-listener.factor
diff --git a/basis/windows/dragdrop-listener/tags.txt b/basis/windows/dragdrop-listener/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/dragdrop-listener/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/windows/nt/monitors/authors.txt b/basis/windows/errors/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/io/windows/nt/monitors/authors.txt
rename to basis/windows/errors/authors.txt
diff --git a/extra/windows/errors/errors.factor b/basis/windows/errors/errors.factor
similarity index 100%
rename from extra/windows/errors/errors.factor
rename to basis/windows/errors/errors.factor
diff --git a/basis/windows/errors/tags.txt b/basis/windows/errors/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/errors/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/random/mersenne-twister/authors.txt b/basis/windows/gdi32/authors.txt
similarity index 100%
rename from extra/random/mersenne-twister/authors.txt
rename to basis/windows/gdi32/authors.txt
diff --git a/extra/windows/gdi32/gdi32.factor b/basis/windows/gdi32/gdi32.factor
old mode 100644
new mode 100755
similarity index 99%
rename from extra/windows/gdi32/gdi32.factor
rename to basis/windows/gdi32/gdi32.factor
index b1f9d8a048..b9ba51844c
--- a/extra/windows/gdi32/gdi32.factor
+++ b/basis/windows/gdi32/gdi32.factor
@@ -1,7 +1,7 @@
 ! FUNCTION: AbortDoc
 ! Copyright (C) 2005, 2006 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.syntax kernel windows.types ;
+USING: alien alien.syntax kernel windows.types alias ;
 IN: windows.gdi32
 
 ! Stock Logical Objects
diff --git a/basis/windows/gdi32/tags.txt b/basis/windows/gdi32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/gdi32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/structs/authors.txt b/basis/windows/kernel32/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/structs/authors.txt
rename to basis/windows/kernel32/authors.txt
diff --git a/extra/windows/kernel32/kernel32.factor b/basis/windows/kernel32/kernel32.factor
old mode 100644
new mode 100755
similarity index 97%
rename from extra/windows/kernel32/kernel32.factor
rename to basis/windows/kernel32/kernel32.factor
index 36f8b51e52..108e02cb46
--- a/extra/windows/kernel32/kernel32.factor
+++ b/basis/windows/kernel32/kernel32.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2005, 2006 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.syntax kernel windows.types ;
+USING: alien alien.syntax kernel windows.types alias ;
 IN: windows.kernel32
 
 : MAX_PATH 260 ; inline
@@ -594,7 +594,7 @@ FUNCTION: BOOL ConnectNamedPipe ( HANDLE hNamedPipe, LPOVERLAPPED lpOverlapped )
 ! FUNCTION: CopyFileExA
 ! FUNCTION: CopyFileExW
 FUNCTION: BOOL CopyFileW ( LPCTSTR lpExistingFileName, LPCTSTR lpNewFileName, BOOL bFailIfExists ) ;
-: CopyFile CopyFileW ; inline
+ALIAS: CopyFile CopyFileW
 ! FUNCTION: CopyLZFile
 ! FUNCTION: CreateActCtxA
 ! FUNCTION: CreateActCtxW
@@ -603,7 +603,7 @@ FUNCTION: BOOL CopyFileW ( LPCTSTR lpExistingFileName, LPCTSTR lpNewFileName, BO
 ! FUNCTION: CreateDirectoryExA
 ! FUNCTION: CreateDirectoryExW
 FUNCTION: BOOL CreateDirectoryW ( LPCTSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttribytes ) ;
-: CreateDirectory CreateDirectoryW ; inline
+ALIAS: CreateDirectory CreateDirectoryW
 
 ! FUNCTION: CreateEventA
 ! FUNCTION: CreateEventW
@@ -612,7 +612,7 @@ FUNCTION: BOOL CreateDirectoryW ( LPCTSTR lpPathName, LPSECURITY_ATTRIBUTES lpSe
 
 
 FUNCTION: HANDLE CreateFileW ( LPCTSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttribures, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile ) ;
-: CreateFile CreateFileW ; inline
+ALIAS: CreateFile CreateFileW
 
 FUNCTION: HANDLE  CreateFileMappingW ( HANDLE hFile,
                                        LPSECURITY_ATTRIBUTES lpAttributes,
@@ -620,7 +620,7 @@ FUNCTION: HANDLE  CreateFileMappingW ( HANDLE hFile,
                                        DWORD dwMaximumSizeHigh,
                                        DWORD dwMaximumSizeLow,
                                        LPCTSTR lpName ) ;
-: CreateFileMapping CreateFileMappingW ;
+ALIAS: CreateFileMapping CreateFileMappingW
 
 ! FUNCTION: CreateHardLinkA
 ! FUNCTION: CreateHardLinkW
@@ -636,7 +636,7 @@ FUNCTION: HANDLE CreateIoCompletionPort ( HANDLE hFileHandle, HANDLE hExistingCo
 ! FUNCTION: CreateMutexW
 ! FUNCTION: CreateNamedPipeA
 FUNCTION: HANDLE CreateNamedPipeW ( LPCTSTR lpName, DWORD dwOpenMode, DWORD dwPipeMode, DWORD nMaxInstances, DWORD nOutBufferSize, DWORD nInBufferSize, DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES lpSecurityAttributes ) ;
-: CreateNamedPipe CreateNamedPipeW ;
+ALIAS: CreateNamedPipe CreateNamedPipeW
 
 ! FUNCTION: CreateNlsSecurityDescriptor
 FUNCTION: BOOL CreatePipe ( PHANDLE hReadPipe, PHANDLE hWritePipe, LPSECURITY_ATTRIBUTES lpPipeAttributes, DWORD nSize ) ;
@@ -675,7 +675,7 @@ FUNCTION: BOOL CreateProcessW ( LPCTSTR lpApplicationname,
                                 LPCTSTR lpCurrentDirectory,
                                 LPSTARTUPINFO lpStartupInfo,
                                 LPPROCESS_INFORMATION lpProcessInformation ) ;
-: CreateProcess CreateProcessW ;
+ALIAS: CreateProcess CreateProcessW
 ! FUNCTION: CreateProcessInternalA
 ! FUNCTION: CreateProcessInternalW
 ! FUNCTION: CreateProcessInternalWSecure
@@ -713,7 +713,7 @@ FUNCTION: HANDLE CreateRemoteThread ( HANDLE hProcess,
 ! FUNCTION: DeleteFiber
 ! FUNCTION: DeleteFileA
 FUNCTION: BOOL DeleteFileW ( LPCTSTR lpFileName ) ;
-: DeleteFile DeleteFileW ;
+ALIAS: DeleteFile DeleteFileW
 ! FUNCTION: DeleteTimerQueue
 ! FUNCTION: DeleteTimerQueueEx
 ! FUNCTION: DeleteTimerQueueTimer
@@ -804,12 +804,12 @@ FUNCTION: BOOL FindCloseChangeNotification ( HANDLE hChangeHandle ) ;
 FUNCTION: HANDLE FindFirstChangeNotificationW ( LPCTSTR lpPathName,
                                         BOOL bWatchSubtree,
                                         DWORD dwNotifyFilter ) ;
-: FindFirstChangeNotification FindFirstChangeNotificationW ;
+ALIAS: FindFirstChangeNotification FindFirstChangeNotificationW
 ! FUNCTION: FindFirstFileA
 ! FUNCTION: FindFirstFileExA
 ! FUNCTION: FindFirstFileExW
 FUNCTION: HANDLE FindFirstFileW ( LPCTSTR lpFileName, LPWIN32_FIND_DATA lpFindFileData ) ;
-: FindFirstFile FindFirstFileW ;
+ALIAS: FindFirstFile FindFirstFileW
 ! FUNCTION: FindFirstVolumeA
 ! FUNCTION: FindFirstVolumeMountPointA
 ! FUNCTION: FindFirstVolumeMountPointW
@@ -817,7 +817,7 @@ FUNCTION: HANDLE FindFirstFileW ( LPCTSTR lpFileName, LPWIN32_FIND_DATA lpFindFi
 FUNCTION: BOOL FindNextChangeNotification ( HANDLE hChangeHandle ) ;
 ! FUNCTION: FindNextFileA
 FUNCTION: BOOL FindNextFileW ( HANDLE hFindFile, LPWIN32_FIND_DATA lpFindFileData ) ;
-: FindNextFile FindNextFileW ;
+ALIAS: FindNextFile FindNextFileW
 ! FUNCTION: FindNextVolumeA
 ! FUNCTION: FindNextVolumeMountPointA
 ! FUNCTION: FindNextVolumeMountPointW
@@ -867,7 +867,7 @@ FUNCTION: BOOL FindNextFileW ( HANDLE hFindFile, LPWIN32_FIND_DATA lpFindFileDat
 FUNCTION: BOOL GetComputerNameW ( LPTSTR lpBuffer, LPDWORD lpnSize ) ;
 ! FUNCTION: GetComputerNameExW
 ! FUNCTION: GetComputerNameW
-: GetComputerName GetComputerNameW ;
+ALIAS: GetComputerName GetComputerNameW
 ! FUNCTION: GetConsoleAliasA
 ! FUNCTION: GetConsoleAliasesA
 ! FUNCTION: GetConsoleAliasesLengthA
@@ -902,7 +902,7 @@ FUNCTION: BOOL GetComputerNameW ( LPTSTR lpBuffer, LPDWORD lpnSize ) ;
 ! FUNCTION: GetConsoleScreenBufferInfo
 ! FUNCTION: GetConsoleSelectionInfo
 FUNCTION: DWORD GetConsoleTitleW ( LPWSTR lpConsoleTitle, DWORD nSize ) ;
-: GetConsoleTitle GetConsoleTitleW ; inline
+ALIAS: GetConsoleTitle GetConsoleTitleW
 ! FUNCTION: GetConsoleWindow
 ! FUNCTION: GetCPFileNameFromRegistry
 ! FUNCTION: GetCPInfo
@@ -914,7 +914,7 @@ FUNCTION: DWORD GetConsoleTitleW ( LPWSTR lpConsoleTitle, DWORD nSize ) ;
 ! FUNCTION: GetCurrentConsoleFont
 ! FUNCTION: GetCurrentDirectoryA
 FUNCTION: BOOL GetCurrentDirectoryW ( DWORD len, LPTSTR buf ) ;
-: GetCurrentDirectory GetCurrentDirectoryW ; inline
+ALIAS: GetCurrentDirectory GetCurrentDirectoryW
 FUNCTION: HANDLE GetCurrentProcess ( ) ;
 FUNCTION: DWORD GetCurrentProcessId ( ) ;
 FUNCTION: HANDLE GetCurrentThread ( ) ;
@@ -951,7 +951,7 @@ FUNCTION: DWORD GetFileAttributesW ( LPCTSTR lpFileName ) ;
 
 FUNCTION: BOOL GetFileAttributesExW ( LPCTSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId, LPVOID lpFileInformation ) ;
 
-: GetFileAttributesEx GetFileAttributesExW ;
+ALIAS: GetFileAttributesEx GetFileAttributesExW
 
 FUNCTION: BOOL GetFileInformationByHandle ( HANDLE hFile, LPBY_HANDLE_FILE_INFORMATION lpFileInformation ) ;
 FUNCTION: DWORD GetFileSize ( HANDLE hFile, LPDWORD lpFileSizeHigh ) ;
@@ -962,7 +962,7 @@ FUNCTION: DWORD GetFileType ( HANDLE hFile ) ;
 ! FUNCTION: GetFirmwareEnvironmentVariableW
 ! FUNCTION: GetFullPathNameA
 FUNCTION: DWORD GetFullPathNameW ( LPCTSTR lpFileName, DWORD nBufferLength, LPTSTR lpBuffer, LPTSTR* lpFilePart ) ;
-: GetFullPathName GetFullPathNameW ;
+ALIAS: GetFullPathName GetFullPathNameW
 
 !  clear "license.txt" 32768 "char[32768]" <c-object> f over >r GetFullPathName r> swap 2 * head >string .
 
@@ -985,7 +985,7 @@ FUNCTION: DWORD GetLastError ( ) ;
 ! FUNCTION: GetModuleFileNameA
 ! FUNCTION: GetModuleFileNameW
 FUNCTION: HMODULE GetModuleHandleW ( LPCWSTR lpModuleName ) ;
-: GetModuleHandle GetModuleHandleW ; inline
+ALIAS: GetModuleHandle GetModuleHandleW
 ! FUNCTION: GetModuleHandleExA
 ! FUNCTION: GetModuleHandleExW
 ! FUNCTION: GetNamedPipeHandleStateA
@@ -1051,7 +1051,7 @@ FUNCTION: HANDLE GetStdHandle ( DWORD nStdHandle ) ;
 ! FUNCTION: GetSystemDefaultUILanguage
 ! FUNCTION: GetSystemDirectoryA
 FUNCTION: UINT GetSystemDirectoryW ( LPTSTR lpBuffer, UINT uSize ) ;
-: GetSystemDirectory GetSystemDirectoryW ; inline
+ALIAS: GetSystemDirectory GetSystemDirectoryW
 FUNCTION: void GetSystemInfo ( LPSYSTEM_INFO lpSystemInfo ) ;
 ! FUNCTION: GetSystemPowerStatus
 ! FUNCTION: GetSystemRegistryQuota
@@ -1061,7 +1061,7 @@ FUNCTION: void GetSystemTimeAsFileTime ( LPFILETIME lpSystemTimeAsFileTime ) ;
 ! FUNCTION: GetSystemTimes
 ! FUNCTION: GetSystemWindowsDirectoryA
 FUNCTION: UINT GetSystemWindowsDirectoryW ( LPTSTR lpBuffer, UINT uSize ) ;
-: GetSystemWindowsDirectory GetSystemWindowsDirectoryW ; inline
+ALIAS: GetSystemWindowsDirectory GetSystemWindowsDirectoryW
 ! FUNCTION: GetSystemWow64DirectoryA
 ! FUNCTION: GetSystemWow64DirectoryW
 ! FUNCTION: GetTapeParameters
@@ -1089,7 +1089,7 @@ FUNCTION: DWORD GetTimeZoneInformation ( LPTIME_ZONE_INFORMATION lpTimeZoneInfor
 ! FUNCTION: GetVDMCurrentDirectories
 FUNCTION: DWORD GetVersion ( ) ;
 FUNCTION: BOOL GetVersionExW ( LPOSVERSIONINFO lpVersionInfo ) ;
-: GetVersionEx GetVersionExW ;
+ALIAS: GetVersionEx GetVersionExW
 ! FUNCTION: GetVolumeInformationA
 ! FUNCTION: GetVolumeInformationW
 ! FUNCTION: GetVolumeNameForVolumeMountPointA
@@ -1100,7 +1100,7 @@ FUNCTION: BOOL GetVersionExW ( LPOSVERSIONINFO lpVersionInfo ) ;
 ! FUNCTION: GetVolumePathNameW
 ! FUNCTION: GetWindowsDirectoryA
 FUNCTION: UINT GetWindowsDirectoryW ( LPTSTR lpBuffer, UINT uSize ) ;
-: GetWindowsDirectory GetWindowsDirectoryW ; inline
+ALIAS: GetWindowsDirectory GetWindowsDirectoryW
 ! FUNCTION: GetWriteWatch
 ! FUNCTION: GlobalAddAtomA
 ! FUNCTION: GlobalAddAtomW
@@ -1182,7 +1182,8 @@ FUNCTION: BOOL IsProcessorFeaturePresent ( DWORD ProcessorFeature ) ;
 ! FUNCTION: LeaveCriticalSection
 ! FUNCTION: LoadLibraryA
 ! FUNCTION: LoadLibraryExA
-! FUNCTION: LoadLibraryExW
+FUNCTION: HMODULE LoadLibraryExW ( LPCTSTR lpFile, HANDLE hFile, DWORD flags ) ;
+ALIAS: LoadLibraryEx LoadLibraryExW
 ! FUNCTION: LoadLibraryW
 ! FUNCTION: LoadModule
 ! FUNCTION: LoadResource
@@ -1252,7 +1253,7 @@ FUNCTION: LPVOID MapViewOfFileEx ( HANDLE hFileMappingObject,
 ! FUNCTION: MoveFileExA
 ! FUNCTION: MoveFileExW
 FUNCTION: BOOL MoveFileW ( LPCTSTR lpExistingFileName, LPCTSTR lpNewFileName ) ;
-: MoveFile MoveFileW ;
+ALIAS: MoveFile MoveFileW
 ! FUNCTION: MoveFileWithProgressA
 ! FUNCTION: MoveFileWithProgressW
 ! FUNCTION: MulDiv
@@ -1270,7 +1271,7 @@ FUNCTION: BOOL MoveFileW ( LPCTSTR lpExistingFileName, LPCTSTR lpNewFileName ) ;
 FUNCTION: HANDLE OpenFileMappingW ( DWORD dwDesiredAccess,
                                     BOOL bInheritHandle,
                                     LPCTSTR lpName ) ;
-: OpenFileMapping OpenFileMappingW ;
+ALIAS: OpenFileMapping OpenFileMappingW
 ! FUNCTION: OpenJobObjectA
 ! FUNCTION: OpenJobObjectW
 ! FUNCTION: OpenMutexA
@@ -1340,7 +1341,7 @@ FUNCTION: BOOL ReadProcessMemory ( HANDLE hProcess, void* lpBaseAddress, void* l
 ! FUNCTION: ReleaseSemaphore
 ! FUNCTION: RemoveDirectoryA
 FUNCTION: BOOL RemoveDirectoryW ( LPCTSTR lpPathName ) ;
-: RemoveDirectory RemoveDirectoryW ;
+ALIAS: RemoveDirectory RemoveDirectoryW
 ! FUNCTION: RemoveLocalAlternateComputerNameA
 ! FUNCTION: RemoveLocalAlternateComputerNameW
 ! FUNCTION: RemoveVectoredExceptionHandler
@@ -1404,13 +1405,13 @@ FUNCTION: BOOL RemoveDirectoryW ( LPCTSTR lpPathName ) ;
 ! FUNCTION: SetConsoleScreenBufferSize
 FUNCTION: BOOL SetConsoleTextAttribute ( HANDLE hConsoleOutput, WORD wAttributes ) ;
 FUNCTION: BOOL SetConsoleTitleW ( LPCWSTR lpConsoleTitle ) ;
-: SetConsoleTitle SetConsoleTitleW ;
+ALIAS: SetConsoleTitle SetConsoleTitleW
 ! FUNCTION: SetConsoleWindowInfo
 ! FUNCTION: SetCPGlobal
 ! FUNCTION: SetCriticalSectionSpinCount
 ! FUNCTION: SetCurrentDirectoryA
 FUNCTION: BOOL SetCurrentDirectoryW ( LPCWSTR lpDirectory ) ;
-: SetCurrentDirectory SetCurrentDirectoryW ; inline
+ALIAS: SetCurrentDirectory SetCurrentDirectoryW
 ! FUNCTION: SetDefaultCommConfigA
 ! FUNCTION: SetDefaultCommConfigW
 ! FUNCTION: SetDllDirectoryA
diff --git a/basis/windows/kernel32/tags.txt b/basis/windows/kernel32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/kernel32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/taxes/authors.txt b/basis/windows/messages/authors.txt
similarity index 100%
rename from extra/taxes/authors.txt
rename to basis/windows/messages/authors.txt
diff --git a/extra/windows/messages/messages.factor b/basis/windows/messages/messages.factor
old mode 100644
new mode 100755
similarity index 99%
rename from extra/windows/messages/messages.factor
rename to basis/windows/messages/messages.factor
index 4c20d0fb42..0f271b4b59
--- a/extra/windows/messages/messages.factor
+++ b/basis/windows/messages/messages.factor
@@ -1,13 +1,13 @@
 ! Copyright (C) 2005, 2006 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: assocs hashtables kernel math namespaces words
+USING: accessors assocs hashtables kernel math namespaces words
 windows.types vocabs sequences ;
 IN: windows.messages
 
 SYMBOL: windows-messages
 
 "windows.messages" words
-[ word-name "windows-message" head? not ] filter
+[ name>> "windows-message" head? not ] filter
 [ dup execute swap ] { } map>assoc
 windows-messages set-global
 
diff --git a/basis/windows/messages/tags.txt b/basis/windows/messages/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/messages/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/ui/windows/authors.txt b/basis/windows/nt/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/ui/windows/authors.txt
rename to basis/windows/nt/authors.txt
diff --git a/extra/windows/nt/nt.factor b/basis/windows/nt/nt.factor
similarity index 100%
rename from extra/windows/nt/nt.factor
rename to basis/windows/nt/nt.factor
diff --git a/basis/windows/nt/tags.txt b/basis/windows/nt/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/nt/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/ole32/authors.txt b/basis/windows/ole32/authors.txt
similarity index 100%
rename from extra/windows/ole32/authors.txt
rename to basis/windows/ole32/authors.txt
diff --git a/basis/windows/ole32/ole32-tests.factor b/basis/windows/ole32/ole32-tests.factor
new file mode 100644
index 0000000000..ecd25738b1
--- /dev/null
+++ b/basis/windows/ole32/ole32-tests.factor
@@ -0,0 +1,36 @@
+USING: kernel tools.test windows.ole32 alien.c-types ;
+IN: windows.ole32.tests
+
+[ t ] [
+    "{01234567-89ab-cdef-0123-456789abcdef}" string>guid
+    "{01234567-89ab-cdef-0123-456789abcdef}" string>guid
+    guid=
+] unit-test
+        
+[ f ] [
+    "{76543210-89ab-cdef-0123-456789abcdef}" string>guid
+    "{01234567-89ab-cdef-0123-456789abcdef}" string>guid
+    guid=
+] unit-test
+        
+[ f ] [
+    "{01234567-89ab-cdef-0123-fedcba987654}" string>guid
+    "{01234567-89ab-cdef-0123-456789abcdef}" string>guid
+    guid=
+] unit-test
+        
+little-endian?
+[ B{
+    HEX: 67 HEX: 45 HEX: 23 HEX: 01 HEX: ab HEX: 89 HEX: ef HEX: cd
+    HEX: 01 HEX: 23 HEX: 45 HEX: 67 HEX: 89 HEX: ab HEX: cd HEX: ef
+} ]
+[ B{
+    HEX: 01 HEX: 23 HEX: 45 HEX: 67 HEX: 89 HEX: ab HEX: cd HEX: ef
+    HEX: 01 HEX: 23 HEX: 45 HEX: 67 HEX: 89 HEX: ab HEX: cd HEX: ef
+} ] ?
+[ "{01234567-89ab-cdef-0123-456789abcdef}" string>guid ]
+unit-test
+
+[ "{01234567-89ab-cdef-0123-456789abcdef}" ]
+[ "{01234567-89ab-cdef-0123-456789abcdef}" string>guid guid>string ]
+unit-test
diff --git a/extra/windows/ole32/ole32.factor b/basis/windows/ole32/ole32.factor
old mode 100644
new mode 100755
similarity index 67%
rename from extra/windows/ole32/ole32.factor
rename to basis/windows/ole32/ole32.factor
index a71a569f16..21b07f9a7d
--- a/extra/windows/ole32/ole32.factor
+++ b/basis/windows/ole32/ole32.factor
@@ -1,6 +1,6 @@
 USING: alien alien.syntax alien.c-types alien.strings math
-kernel sequences windows windows.types combinators.lib
-math.order ;
+kernel sequences windows windows.types debugger io accessors
+math.order namespaces math.parser windows.kernel32 combinators ;
 IN: windows.ole32
 
 LIBRARY: ole32
@@ -10,6 +10,7 @@ TYPEDEF: void* LPUNKNOWN
 TYPEDEF: wchar_t* LPOLESTR
 TYPEDEF: wchar_t* LPCOLESTR
 
+TYPEDEF: REFGUID LPGUID
 TYPEDEF: REFGUID REFIID
 TYPEDEF: REFGUID REFCLSID
 
@@ -114,23 +115,67 @@ FUNCTION: void ReleaseStgMedium ( LPSTGMEDIUM pmedium ) ;
 : succeeded? ( hresult -- ? )
     0 HEX: 7FFFFFFF between? ;
 
+TUPLE: ole32-error error-code ;
+C: <ole32-error> ole32-error
+
+M: ole32-error error.
+    "COM method failed: " print error-code>> (win32-error-string) print ;
+
 : ole32-error ( hresult -- )
-    dup succeeded? [
-        drop
-    ] [ (win32-error-string) throw ] if ;
+    dup succeeded? [ drop ] [ <ole32-error> throw ] if ;
 
 : ole-initialize ( -- )
     f OleInitialize ole32-error ;
 
 : guid= ( a b -- ? )
-    IsEqualGUID c-bool> ;
+    [ 16 memory>byte-array ] bi@ = ;
 
 : GUID-STRING-LENGTH
     "{01234567-89ab-cdef-0123-456789abcdef}" length ; inline
 
-: string>guid ( string -- guid )
-    utf16n string>alien "GUID" <c-object> [ CLSIDFromString ole32-error ] keep ;
-: guid>string ( guid -- string )
-    GUID-STRING-LENGTH 1+ [ "ushort" <c-array> ] keep
-    [ StringFromGUID2 drop ] { 2 } multikeep utf16n alien>string ;
+: (guid-section>guid) ( guid string start end quot -- )
+    [ roll subseq hex> swap ] dip call ; inline
+: (guid-byte>guid) ( guid string start end byte -- )
+    [ roll subseq hex> ] dip
+    rot GUID-Data4 set-uchar-nth ; inline
+
+: string>guid ( string -- guid )
+    "GUID" <c-object> [ {
+        [  1  9 [ set-GUID-Data1 ] (guid-section>guid) ]
+
+        [ 10 14 [ set-GUID-Data2 ] (guid-section>guid) ]
+
+        [ 15 19 [ set-GUID-Data3 ] (guid-section>guid) ]
+
+        [ 20 22 0 (guid-byte>guid) ]
+        [ 22 24 1 (guid-byte>guid) ]
+
+        [ 25 27 2 (guid-byte>guid) ]
+        [ 27 29 3 (guid-byte>guid) ]
+        [ 29 31 4 (guid-byte>guid) ]
+        [ 31 33 5 (guid-byte>guid) ]
+        [ 33 35 6 (guid-byte>guid) ]
+        [ 35 37 7 (guid-byte>guid) ]
+    } 2cleave ] keep ;
+
+: (guid-section%) ( guid quot len -- )
+    [ call >hex ] dip CHAR: 0 pad-left % ; inline
+: (guid-byte%) ( guid byte -- )
+    swap GUID-Data4 uchar-nth >hex 2
+    CHAR: 0 pad-left % ; inline
+
+: guid>string ( guid -- string )
+    [ "{" % {
+        [ [ GUID-Data1 ] 8 (guid-section%) "-" % ]
+        [ [ GUID-Data2 ] 4 (guid-section%) "-" % ]
+        [ [ GUID-Data3 ] 4 (guid-section%) "-" % ]
+        [ 0 (guid-byte%) ]
+        [ 1 (guid-byte%) "-" % ]
+        [ 2 (guid-byte%) ]
+        [ 3 (guid-byte%) ]
+        [ 4 (guid-byte%) ]
+        [ 5 (guid-byte%) ]
+        [ 6 (guid-byte%) ]
+        [ 7 (guid-byte%) "}" % ]
+    } cleave ] "" make ;
 
diff --git a/basis/windows/ole32/tags.txt b/basis/windows/ole32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/ole32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/advapi32/authors.txt b/basis/windows/opengl32/authors.txt
similarity index 100%
rename from extra/windows/advapi32/authors.txt
rename to basis/windows/opengl32/authors.txt
diff --git a/extra/windows/opengl32/opengl32.factor b/basis/windows/opengl32/opengl32.factor
old mode 100644
new mode 100755
similarity index 98%
rename from extra/windows/opengl32/opengl32.factor
rename to basis/windows/opengl32/opengl32.factor
index c38579c95e..df09d9327a
--- a/extra/windows/opengl32/opengl32.factor
+++ b/basis/windows/opengl32/opengl32.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2006 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types alien.syntax parser namespaces kernel
-math math.bitfields windows.types windows.types init assocs
+math math.bitwise windows.types windows.types init assocs
 sequences libc ;
 IN: windows.opengl32
 
@@ -71,7 +71,7 @@ IN: windows.opengl32
 : WGL_SWAP_UNDERLAY14     HEX: 20000000 ; inline
 : WGL_SWAP_UNDERLAY15     HEX: 40000000 ; inline
 
-: pfd-dwFlags
+: pfd-dwFlags ( -- n )
     { PFD_DRAW_TO_WINDOW PFD_SUPPORT_OPENGL PFD_DOUBLEBUFFER } flags ;
 
 ! TODO: compare to http://www.nullterminator.net/opengl32.html
diff --git a/basis/windows/opengl32/tags.txt b/basis/windows/opengl32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/opengl32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/ce/authors.txt b/basis/windows/shell32/authors.txt
similarity index 100%
rename from extra/windows/ce/authors.txt
rename to basis/windows/shell32/authors.txt
diff --git a/extra/windows/shell32/shell32.factor b/basis/windows/shell32/shell32.factor
similarity index 100%
rename from extra/windows/shell32/shell32.factor
rename to basis/windows/shell32/shell32.factor
diff --git a/basis/windows/shell32/tags.txt b/basis/windows/shell32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/shell32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/summary.txt b/basis/windows/summary.txt
similarity index 100%
rename from extra/windows/summary.txt
rename to basis/windows/summary.txt
diff --git a/basis/windows/tags.txt b/basis/windows/tags.txt
new file mode 100644
index 0000000000..1431506222
--- /dev/null
+++ b/basis/windows/tags.txt
@@ -0,0 +1,3 @@
+unportable
+windows
+bindings
diff --git a/extra/windows/errors/authors.txt b/basis/windows/time/authors.txt
similarity index 100%
rename from extra/windows/errors/authors.txt
rename to basis/windows/time/authors.txt
diff --git a/basis/windows/time/tags.txt b/basis/windows/time/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/time/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/time/time-tests.factor b/basis/windows/time/time-tests.factor
similarity index 100%
rename from extra/windows/time/time-tests.factor
rename to basis/windows/time/time-tests.factor
diff --git a/extra/windows/time/time.factor b/basis/windows/time/time.factor
similarity index 96%
rename from extra/windows/time/time.factor
rename to basis/windows/time/time.factor
index 63b12de1ff..5e23f8cc01 100644
--- a/extra/windows/time/time.factor
+++ b/basis/windows/time/time.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.c-types kernel math windows windows.kernel32
-namespaces calendar calendar.backend ;
+namespaces calendar ;
 IN: windows.time
 
 : >64bit ( lo hi -- n )
diff --git a/extra/windows/gdi32/authors.txt b/basis/windows/types/authors.txt
similarity index 100%
rename from extra/windows/gdi32/authors.txt
rename to basis/windows/types/authors.txt
diff --git a/basis/windows/types/tags.txt b/basis/windows/types/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/types/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/types/types.factor b/basis/windows/types/types.factor
similarity index 100%
rename from extra/windows/types/types.factor
rename to basis/windows/types/types.factor
diff --git a/extra/windows/kernel32/authors.txt b/basis/windows/user32/authors.txt
similarity index 100%
rename from extra/windows/kernel32/authors.txt
rename to basis/windows/user32/authors.txt
diff --git a/basis/windows/user32/tags.txt b/basis/windows/user32/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/user32/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/user32/user32.factor b/basis/windows/user32/user32.factor
old mode 100644
new mode 100755
similarity index 94%
rename from extra/windows/user32/user32.factor
rename to basis/windows/user32/user32.factor
index e3e8a23ca7..e5c9f96275
--- a/extra/windows/user32/user32.factor
+++ b/basis/windows/user32/user32.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2006 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien alien.syntax parser namespaces kernel math
-windows.types shuffle math.bitfields ;
+windows.types generalizations math.bitwise alias ;
 IN: windows.user32
 
 ! HKL for ActivateKeyboardLayout
@@ -32,7 +32,7 @@ IN: windows.user32
 : WS_MAXIMIZEBOX      HEX: 00010000 ; inline
 
 ! Common window styles
-: WS_OVERLAPPEDWINDOW
+: WS_OVERLAPPEDWINDOW ( -- n )
     {
         WS_OVERLAPPED
         WS_CAPTION
@@ -42,7 +42,7 @@ IN: windows.user32
         WS_MAXIMIZEBOX
     } flags ; foldable
 
-: WS_POPUPWINDOW
+: WS_POPUPWINDOW ( -- n )
     { WS_POPUP WS_BORDER WS_SYSMENU } flags ; foldable
 
 : WS_CHILDWINDOW      WS_CHILD ; inline
@@ -50,7 +50,7 @@ IN: windows.user32
 : WS_TILED            WS_OVERLAPPED ; inline
 : WS_ICONIC           WS_MINIMIZE ; inline
 : WS_SIZEBOX          WS_THICKFRAME ; inline
-: WS_TILEDWINDOW      WS_OVERLAPPEDWINDOW ; inline
+: WS_TILEDWINDOW WS_OVERLAPPEDWINDOW ; inline
 
 ! Extended window styles
 
@@ -528,6 +528,27 @@ C-STRUCT: TRACKMOUSEEVENT
     { "DWORD" "dwHoverTime" } ;
 TYPEDEF: TRACKMOUSEEVENT* LPTRACKMOUSEEVENT
 
+: DBT_DEVICEARRIVAL HEX: 8000 ; inline
+: DBT_DEVICEREMOVECOMPLETE HEX: 8004 ; inline
+
+: DBT_DEVTYP_DEVICEINTERFACE 5 ; inline
+
+: DEVICE_NOTIFY_WINDOW_HANDLE 0 ; inline
+: DEVICE_NOTIFY_SERVICE_HANDLE 1 ; inline
+
+: DEVICE_NOTIFY_ALL_INTERFACE_CLASSES 4 ; inline
+
+C-STRUCT: DEV_BROADCAST_HDR
+    { "DWORD" "dbch_size" }
+    { "DWORD" "dbch_devicetype" }
+    { "DWORD" "dbch_reserved" } ;
+C-STRUCT: DEV_BROADCAST_DEVICEW
+    { "DWORD" "dbcc_size" }
+    { "DWORD" "dbcc_devicetype" }
+    { "DWORD" "dbcc_reserved" }
+    { "GUID"  "dbcc_classguid" }
+    { "WCHAR[1]" "dbcc_name" } ;
+
 LIBRARY: user32
 
 FUNCTION: HKL ActivateKeyboardLayout ( HKL hkl, UINT Flags ) ;
@@ -606,14 +627,14 @@ FUNCTION: BOOL CloseClipboard ( ) ;
 ! FUNCTION: CloseWindowStation
 ! FUNCTION: CopyAcceleratorTableA
 FUNCTION: int CopyAcceleratorTableW ( HACCEL hAccelSrc, LPACCEL lpAccelDst, int cAccelEntries ) ;
-: CopyAcceleratorTable CopyAcceleratorTableW ; inline
+ALIAS: CopyAcceleratorTable CopyAcceleratorTableW
 ! FUNCTION: CopyIcon
 ! FUNCTION: CopyImage
 ! FUNCTION: CopyRect
 ! FUNCTION: CountClipboardFormats
 ! FUNCTION: CreateAcceleratorTableA
 FUNCTION: HACCEL CreateAcceleratorTableW ( LPACCEL lpaccl, int cEntries ) ;
-: CreateAcceleratorTable CreateAcceleratorTableW ; inline
+ALIAS: CreateAcceleratorTable CreateAcceleratorTableW
 ! FUNCTION: CreateCaret
 ! FUNCTION: CreateCursor
 ! FUNCTION: CreateDesktopA
@@ -647,9 +668,9 @@ FUNCTION: HWND CreateWindowExW (
                 HINSTANCE hInstance,
                 LPVOID lpParam ) ;
 
-: CreateWindowEx CreateWindowExW ; inline
+ALIAS: CreateWindowEx CreateWindowExW
 
-: CreateWindow 0 12 -nrot CreateWindowEx ;
+: CreateWindow 0 12 -nrot CreateWindowEx ; inline
 
 
 ! FUNCTION: CreateWindowStationA
@@ -698,7 +719,7 @@ FUNCTION: HWND CreateWindowExW (
 ! FUNCTION: DefMDIChildProcW
 ! FUNCTION: DefRawInputProc
 FUNCTION: LRESULT DefWindowProcW ( HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam ) ;
-: DefWindowProc DefWindowProcW ; inline
+ALIAS: DefWindowProc DefWindowProcW
 ! FUNCTION: DeleteMenu
 ! FUNCTION: DeregisterShellHookWindow
 FUNCTION: BOOL DestroyAcceleratorTable ( HACCEL hAccel ) ;
@@ -717,7 +738,7 @@ FUNCTION: BOOL DestroyWindow ( HWND hWnd ) ;
 ! FUNCTION: DisableProcessWindowsGhosting
 
 FUNCTION: LONG DispatchMessageW ( MSG* lpMsg ) ;
-: DispatchMessage DispatchMessageW ; inline
+ALIAS: DispatchMessage DispatchMessageW
 
 ! FUNCTION: DisplayExitWindowsWarnings
 ! FUNCTION: DlgDirListA
@@ -808,14 +829,14 @@ FUNCTION: HWND GetCapture ( ) ;
 ! FUNCTION: GetCaretBlinkTime
 ! FUNCTION: GetCaretPos
 FUNCTION: BOOL GetClassInfoW ( HINSTANCE hInst, LPCWSTR lpszClass, LPWNDCLASS lpwcx ) ;
-: GetClassInfo GetClassInfoW ;
+ALIAS: GetClassInfo GetClassInfoW
 
 FUNCTION: BOOL GetClassInfoExW ( HINSTANCE hInst, LPCWSTR lpszClass, LPWNDCLASSEX lpwcx ) ;
-: GetClassInfoEx GetClassInfoExW ; inline
+ALIAS: GetClassInfoEx GetClassInfoExW
 
 FUNCTION: ULONG_PTR GetClassLongW ( HWND hWnd, int nIndex ) ;
-: GetClassLong GetClassLongW ; inline
-: GetClassLongPtr GetClassLongW ; inline
+ALIAS: GetClassLong GetClassLongW
+ALIAS: GetClassLongPtr GetClassLongW
 
 
 ! FUNCTION: GetClassNameA
@@ -884,7 +905,7 @@ FUNCTION: SHORT GetKeyState ( int nVirtKey ) ;
 ! FUNCTION: GetMenuStringW
 
 FUNCTION: BOOL GetMessageW ( LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax ) ;
-: GetMessage GetMessageW ; inline
+ALIAS: GetMessage GetMessageW
 
 ! FUNCTION: GetMessageExtraInfo
 ! FUNCTION: GetMessagePos
@@ -1020,11 +1041,11 @@ FUNCTION: HACCEL LoadAcceleratorsW ( HINSTANCE hInstance, LPCTSTR lpTableName )
 
 ! FUNCTION: HCURSOR LoadCursorW ( HINSTANCE hInstance, LPCWSTR lpCursorName ) ;
 FUNCTION: HCURSOR LoadCursorW ( HINSTANCE hInstance, ushort lpCursorName ) ;
-: LoadCursor LoadCursorW ; inline
+ALIAS: LoadCursor LoadCursorW
 
 ! FUNCTION: HICON LoadIconA ( HINSTANCE hInstance, LPCTSTR lpIconName ) ;
 FUNCTION: HICON LoadIconW ( HINSTANCE hInstance, LPCTSTR lpIconName ) ;
-: LoadIcon LoadIconW ; inline
+ALIAS: LoadIcon LoadIconW
 
 ! FUNCTION: LoadImageA
 ! FUNCTION: LoadImageW
@@ -1048,10 +1069,10 @@ FUNCTION: HICON LoadIconW ( HINSTANCE hInstance, LPCTSTR lpIconName ) ;
 ! FUNCTION: MapDialogRect
 
 FUNCTION: UINT MapVirtualKeyW ( UINT uCode, UINT uMapType ) ;
-: MapVirtualKey MapVirtualKeyW ; inline
+ALIAS: MapVirtualKey MapVirtualKeyW
 
 FUNCTION: UINT MapVirtualKeyExW ( UINT uCode, UINT uMapType, HKL dwhkl ) ;
-: MapVirtualKeyEx MapVirtualKeyExW ; inline
+ALIAS: MapVirtualKeyEx MapVirtualKeyExW
 
 ! FUNCTION: MapWindowPoints
 ! FUNCTION: MB_GetString
@@ -1093,9 +1114,9 @@ FUNCTION: int MessageBoxExW (
 ! FUNCTION: int MessageBoxIndirectW ( MSGBOXPARAMSW* params ) ;
 
 
-: MessageBox MessageBoxW ;
+ALIAS: MessageBox MessageBoxW
 
-: MessageBoxEx MessageBoxExW ;
+ALIAS: MessageBoxEx MessageBoxExW
 
 ! : MessageBoxIndirect
     ! \ MessageBoxIndirectW \ MessageBoxIndirectA unicode-exec ;
@@ -1140,7 +1161,7 @@ FUNCTION: BOOL OpenClipboard ( HWND hWndNewOwner ) ;
 ! FUNCTION: PaintMenuBar
 FUNCTION: BOOL PeekMessageA ( LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg ) ;
 FUNCTION: BOOL PeekMessageW ( LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg ) ;
-: PeekMessage PeekMessageW ;
+ALIAS: PeekMessage PeekMessageW
 
 ! FUNCTION: PostMessageA
 ! FUNCTION: PostMessageW
@@ -1166,18 +1187,19 @@ FUNCTION: void PostQuitMessage ( int nExitCode ) ;
 ! FUNCTION: RecordShutdownReason
 ! FUNCTION: RedrawWindow
 
-FUNCTION: ATOM RegisterClassA ( WNDCLASS* lpWndClass) ;
+FUNCTION: ATOM RegisterClassA ( WNDCLASS* lpWndClass ) ;
 FUNCTION: ATOM RegisterClassW ( WNDCLASS* lpWndClass ) ;
 FUNCTION: ATOM RegisterClassExA ( WNDCLASSEX* lpwcx ) ;
 FUNCTION: ATOM RegisterClassExW ( WNDCLASSEX* lpwcx ) ;
 
-: RegisterClass RegisterClassW ;
-: RegisterClassEx RegisterClassExW ;
+ALIAS: RegisterClass RegisterClassW
+ALIAS: RegisterClassEx RegisterClassExW
 
 ! FUNCTION: RegisterClipboardFormatA
 ! FUNCTION: RegisterClipboardFormatW
-! FUNCTION: RegisterDeviceNotificationA
-! FUNCTION: RegisterDeviceNotificationW
+FUNCTION: HANDLE RegisterDeviceNotificationA ( HANDLE hRecipient, LPVOID NotificationFilter, DWORD Flags ) ;
+FUNCTION: HANDLE RegisterDeviceNotificationW ( HANDLE hRecipient, LPVOID NotificationFilter, DWORD Flags ) ;
+ALIAS: RegisterDeviceNotification RegisterDeviceNotificationW
 ! FUNCTION: RegisterHotKey
 ! FUNCTION: RegisterLogonProcess
 ! FUNCTION: RegisterMessagePumpHook
@@ -1208,7 +1230,7 @@ FUNCTION: int ReleaseDC ( HWND hWnd, HDC hDC ) ;
 ! FUNCTION: SendIMEMessageExW
 ! FUNCTION: UINT SendInput ( UINT nInputs, LPINPUT pInputs, int cbSize ) ;
 FUNCTION: LRESULT SendMessageW ( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) ;
-: SendMessage SendMessageW ;
+ALIAS: SendMessage SendMessageW
 ! FUNCTION: SendMessageCallbackA
 ! FUNCTION: SendMessageCallbackW
 ! FUNCTION: SendMessageTimeoutA
@@ -1221,8 +1243,8 @@ FUNCTION: HWND SetCapture ( HWND hWnd ) ;
 ! FUNCTION: SetCaretPos
 
 FUNCTION: ULONG_PTR SetClassLongW ( HWND hWnd, int nIndex, LONG_PTR dwNewLong ) ;
-: SetClassLongPtr SetClassLongW ;
-: SetClassLong SetClassLongW ;
+ALIAS: SetClassLongPtr SetClassLongW
+ALIAS: SetClassLong SetClassLongW
 
 ! FUNCTION: SetClassWord
 FUNCTION: HANDLE SetClipboardData ( UINT uFormat, HANDLE hMem ) ;
@@ -1243,7 +1265,7 @@ FUNCTION: BOOL SetForegroundWindow ( HWND hWnd ) ;
 ! FUNCTION: SetKeyboardState
 ! type is ignored
 FUNCTION: void SetLastErrorEx ( DWORD dwErrCode, DWORD dwType ) ; 
-: SetLastError 0 SetLastErrorEx ;
+: SetLastError 0 SetLastErrorEx ; inline
 ! FUNCTION: SetLayeredWindowAttributes
 ! FUNCTION: SetLogonNotifyWindow
 ! FUNCTION: SetMenu
@@ -1285,10 +1307,10 @@ FUNCTION: void SetLastErrorEx ( DWORD dwErrCode, DWORD dwType ) ;
 ! FUNCTION: SetWindowPlacement
 FUNCTION: BOOL SetWindowPos ( HWND hWnd, HWND hWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags ) ;
 
-: HWND_BOTTOM ALIEN: 1 ;
-: HWND_NOTOPMOST ALIEN: -2 ;
-: HWND_TOP ALIEN: 0 ;
-: HWND_TOPMOST ALIEN: -1 ;
+: HWND_BOTTOM ( -- alien ) 1 <alien> ;
+: HWND_NOTOPMOST ( -- alien ) -2 <alien> ;
+: HWND_TOP ( -- alien ) 0 <alien> ;
+: HWND_TOPMOST ( -- alien ) -1 <alien> ;
 
 ! FUNCTION: SetWindowRgn
 ! FUNCTION: SetWindowsHookA
@@ -1330,7 +1352,7 @@ FUNCTION: BOOL TrackMouseEvent ( LPTRACKMOUSEEVENT lpEventTrack ) ;
 ! FUNCTION: TranslateAccelerator
 ! FUNCTION: TranslateAcceleratorA
 FUNCTION: int TranslateAcceleratorW ( HWND hWnd, HACCEL hAccTable, LPMSG lpMsg ) ;
-: TranslateAccelerator TranslateAcceleratorW ; inline
+ALIAS: TranslateAccelerator TranslateAcceleratorW
 
 ! FUNCTION: TranslateMDISysAccel
 FUNCTION: BOOL TranslateMessage ( MSG* lpMsg ) ;
@@ -1343,8 +1365,8 @@ FUNCTION: BOOL TranslateMessage ( MSG* lpMsg ) ;
 ! FUNCTION: UnlockWindowStation
 ! FUNCTION: UnpackDDElParam
 FUNCTION: BOOL UnregisterClassW ( LPCWSTR lpClassName, HINSTANCE hInstance ) ;
-: UnregisterClass UnregisterClassW ;
-! FUNCTION: UnregisterDeviceNotification
+ALIAS: UnregisterClass UnregisterClassW
+FUNCTION: BOOL UnregisterDeviceNotification ( HANDLE hDevNotify ) ;
 ! FUNCTION: UnregisterHotKey
 ! FUNCTION: UnregisterMessagePumpHook
 ! FUNCTION: UnregisterUserApiHook
diff --git a/extra/windows/windows.factor b/basis/windows/windows.factor
similarity index 98%
rename from extra/windows/windows.factor
rename to basis/windows/windows.factor
index 3e7520d406..2fc1dbf122 100644
--- a/extra/windows/windows.factor
+++ b/basis/windows/windows.factor
@@ -40,7 +40,7 @@ FUNCTION: void* error_message ( DWORD id ) ;
         win32-error-string throw
     ] when ;
 
-: expected-io-errors
+: expected-io-errors ( -- seq )
     ERROR_SUCCESS
     ERROR_IO_INCOMPLETE
     ERROR_IO_PENDING
diff --git a/extra/windows/messages/authors.txt b/basis/windows/winsock/authors.txt
similarity index 100%
rename from extra/windows/messages/authors.txt
rename to basis/windows/winsock/authors.txt
diff --git a/basis/windows/winsock/tags.txt b/basis/windows/winsock/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/windows/winsock/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/windows/winsock/winsock.factor b/basis/windows/winsock/winsock.factor
similarity index 98%
rename from extra/windows/winsock/winsock.factor
rename to basis/windows/winsock/winsock.factor
index 57181d2704..3c4230e21e 100755
--- a/extra/windows/winsock/winsock.factor
+++ b/basis/windows/winsock/winsock.factor
@@ -2,7 +2,7 @@
 
 USING: alien alien.c-types alien.strings alien.syntax arrays
 byte-arrays kernel math sequences windows.types windows.kernel32
-windows.errors structs windows math.bitfields ;
+windows.errors structs windows math.bitwise alias ;
 IN: windows.winsock
 
 USE: libc
@@ -74,7 +74,7 @@ TYPEDEF: void* SOCKET
 : AI_PASSIVE     1 ; inline
 : AI_CANONNAME   2 ; inline
 : AI_NUMERICHOST 4 ; inline
-: AI_MASK { AI_PASSIVE AI_CANONNAME AI_NUMERICHOST } flags ;
+: AI_MASK ( -- n ) { AI_PASSIVE AI_CANONNAME AI_NUMERICHOST } flags ;
 
 : NI_NUMERICHOST 1 ;
 : NI_NUMERICSERV 2 ;
@@ -138,7 +138,7 @@ C-STRUCT: addrinfo
     { "sockaddr*" "addr" }
     { "addrinfo*" "next" } ;
 
-: hostent-addr hostent-addr-list *void* ; ! *uint ;
+: hostent-addr ( hostent -- addr ) hostent-addr-list *void* ; ! *uint ;
 
 LIBRARY: winsock
 
@@ -365,7 +365,7 @@ FUNCTION: SOCKET WSASocketW ( int af,
                              LPWSAPROTOCOL_INFOW lpProtocolInfo,
                              GROUP g,
                              DWORD flags ) ;
-: WSASocket WSASocketW ;
+ALIAS: WSASocket WSASocketW
 
 FUNCTION: DWORD WSAWaitForMultipleEvents ( DWORD cEvents,
                                            WSAEVENT* lphEvents,
@@ -384,7 +384,7 @@ FUNCTION: void GetAcceptExSockaddrs ( void* a, int b, int c, int d, void* e, voi
 
 : SIO_GET_EXTENSION_FUNCTION_POINTER -939524090 ; inline
 
-: WSAID_CONNECTEX
+: WSAID_CONNECTEX ( -- GUID )
     "GUID" <c-object>
     HEX: 25a207b9 over set-GUID-Data1
     HEX: ddf3 over set-GUID-Data2
diff --git a/extra/xml-rpc/authors.txt b/basis/wrap/authors.txt
similarity index 100%
rename from extra/xml-rpc/authors.txt
rename to basis/wrap/authors.txt
diff --git a/extra/wrap/summary.txt b/basis/wrap/summary.txt
similarity index 100%
rename from extra/wrap/summary.txt
rename to basis/wrap/summary.txt
diff --git a/extra/wrap/tags.txt b/basis/wrap/tags.txt
similarity index 100%
rename from extra/wrap/tags.txt
rename to basis/wrap/tags.txt
diff --git a/extra/wrap/wrap.factor b/basis/wrap/wrap.factor
similarity index 100%
rename from extra/wrap/wrap.factor
rename to basis/wrap/wrap.factor
diff --git a/extra/x11/clipboard/authors.txt b/basis/x11/clipboard/authors.txt
similarity index 100%
rename from extra/x11/clipboard/authors.txt
rename to basis/x11/clipboard/authors.txt
diff --git a/extra/x11/clipboard/clipboard.factor b/basis/x11/clipboard/clipboard.factor
similarity index 92%
rename from extra/x11/clipboard/clipboard.factor
rename to basis/x11/clipboard/clipboard.factor
index 9e1e0ef920..1007b47a5b 100755
--- a/extra/x11/clipboard/clipboard.factor
+++ b/basis/x11/clipboard/clipboard.factor
@@ -8,9 +8,9 @@ IN: x11.clipboard
 ! This code was based on by McCLIM's Backends/CLX/port.lisp
 ! and http://common-lisp.net/~crhodes/clx/demo/clipboard.lisp.
 
-: XA_CLIPBOARD "CLIPBOARD" x-atom ;
+: XA_CLIPBOARD ( -- atom ) "CLIPBOARD" x-atom ;
 
-: XA_UTF8_STRING "UTF8_STRING" x-atom ;
+: XA_UTF8_STRING ( -- atom ) "UTF8_STRING" x-atom ;
 
 TUPLE: x-clipboard atom contents ;
 
@@ -33,10 +33,10 @@ TUPLE: x-clipboard atom contents ;
     [ XGetWindowProperty drop ] keep snarf-property ;
 
 : selection-from-event ( event window -- string )
-    >r XSelectionEvent-property zero? [
-        r> drop f
+    swap XSelectionEvent-property zero? [
+        drop f
     ] [
-        r> selection-property 1 window-property utf8 decode
+        selection-property 1 window-property utf8 decode
     ] if ;
 
 : own-selection ( prop win -- )
diff --git a/extra/x11/clipboard/summary.txt b/basis/x11/clipboard/summary.txt
similarity index 100%
rename from extra/x11/clipboard/summary.txt
rename to basis/x11/clipboard/summary.txt
diff --git a/extra/x11/constants/authors.txt b/basis/x11/constants/authors.txt
similarity index 100%
rename from extra/x11/constants/authors.txt
rename to basis/x11/constants/authors.txt
diff --git a/extra/x11/constants/constants.factor b/basis/x11/constants/constants.factor
similarity index 94%
rename from extra/x11/constants/constants.factor
rename to basis/x11/constants/constants.factor
index 5781fdc806..fcce09380f 100644
--- a/extra/x11/constants/constants.factor
+++ b/basis/x11/constants/constants.factor
@@ -45,7 +45,7 @@ TYPEDEF: uchar KeyCode
 ! with button names below.
 
 
-: AnyModifier           1 15 shift ; ! used in GrabButton, GrabKey
+: AnyModifier          ( -- n ) 15 2^ ; ! used in GrabButton, GrabKey
 
 ! button names. Used as arguments to GrabButton and as detail in ButtonPress
 ! and ButtonRelease events.  Not to be confused with button masks above.
@@ -128,8 +128,8 @@ TYPEDEF: uchar KeyCode
 
 ! Used in SetInputFocus, GetInputFocus
 
-: RevertToNone          None ;
-: RevertToPointerRoot   PointerRoot ;
+: RevertToNone         ( -- n ) None ;
+: RevertToPointerRoot  ( -- n ) PointerRoot ;
 : RevertToParent        2 ;
 
 ! *****************************************************************
@@ -307,9 +307,9 @@ TYPEDEF: uchar KeyCode
 
 ! Flags used in StoreNamedColor, StoreColors
 
-: DoRed         1 0 shift ;
-: DoGreen       1 1 shift ;
-: DoBlue        1 2 shift ;
+: DoRed        ( -- n ) 0 2^ ;
+: DoGreen      ( -- n ) 1 2^ ;
+: DoBlue       ( -- n ) 2 2^ ;
 
 ! *****************************************************************
 ! * CURSOR STUFF
@@ -334,14 +334,14 @@ TYPEDEF: uchar KeyCode
 
 ! masks for ChangeKeyboardControl
 
-: KBKeyClickPercent     1 0 shift ;
-: KBBellPercent         1 1 shift ;
-: KBBellPitch           1 2 shift ;
-: KBBellDuration        1 3 shift ;
-: KBLed                 1 4 shift ;
-: KBLedMode             1 5 shift ;
-: KBKey                 1 6 shift ;
-: KBAutoRepeatMode      1 7 shift ;
+: KBKeyClickPercent    ( -- n ) 0 2^ ;
+: KBBellPercent        ( -- n ) 1 2^ ;
+: KBBellPitch          ( -- n ) 2 2^ ;
+: KBBellDuration       ( -- n ) 3 2^ ;
+: KBLed                ( -- n ) 4 2^ ;
+: KBLedMode            ( -- n ) 5 2^ ;
+: KBKey                ( -- n ) 6 2^ ;
+: KBAutoRepeatMode     ( -- n ) 7 2^ ;
 
 : MappingSuccess        0 ;
 : MappingBusy           1 ;
diff --git a/extra/x11/constants/summary.txt b/basis/x11/constants/summary.txt
similarity index 100%
rename from extra/x11/constants/summary.txt
rename to basis/x11/constants/summary.txt
diff --git a/extra/x11/events/authors.txt b/basis/x11/events/authors.txt
similarity index 100%
rename from extra/x11/events/authors.txt
rename to basis/x11/events/authors.txt
diff --git a/extra/x11/events/events.factor b/basis/x11/events/events.factor
similarity index 100%
rename from extra/x11/events/events.factor
rename to basis/x11/events/events.factor
diff --git a/extra/x11/events/summary.txt b/basis/x11/events/summary.txt
similarity index 100%
rename from extra/x11/events/summary.txt
rename to basis/x11/events/summary.txt
diff --git a/extra/x11/glx/authors.txt b/basis/x11/glx/authors.txt
similarity index 100%
rename from extra/x11/glx/authors.txt
rename to basis/x11/glx/authors.txt
diff --git a/extra/x11/glx/glx.factor b/basis/x11/glx/glx.factor
similarity index 100%
rename from extra/x11/glx/glx.factor
rename to basis/x11/glx/glx.factor
diff --git a/extra/x11/glx/summary.txt b/basis/x11/glx/summary.txt
similarity index 100%
rename from extra/x11/glx/summary.txt
rename to basis/x11/glx/summary.txt
diff --git a/extra/opengl/gl/tags.txt b/basis/x11/glx/tags.txt
similarity index 100%
rename from extra/opengl/gl/tags.txt
rename to basis/x11/glx/tags.txt
diff --git a/extra/x11/summary.txt b/basis/x11/summary.txt
similarity index 100%
rename from extra/x11/summary.txt
rename to basis/x11/summary.txt
diff --git a/extra/opengl/glu/tags.txt b/basis/x11/tags.txt
similarity index 100%
rename from extra/opengl/glu/tags.txt
rename to basis/x11/tags.txt
diff --git a/extra/x11/windows/authors.txt b/basis/x11/windows/authors.txt
similarity index 100%
rename from extra/x11/windows/authors.txt
rename to basis/x11/windows/authors.txt
diff --git a/extra/x11/windows/summary.txt b/basis/x11/windows/summary.txt
similarity index 100%
rename from extra/x11/windows/summary.txt
rename to basis/x11/windows/summary.txt
diff --git a/basis/x11/windows/tags.txt b/basis/x11/windows/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/basis/x11/windows/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/x11/windows/windows.factor b/basis/x11/windows/windows.factor
similarity index 93%
rename from extra/x11/windows/windows.factor
rename to basis/x11/windows/windows.factor
index f9158c2956..aed45655f6 100755
--- a/extra/x11/windows/windows.factor
+++ b/basis/x11/windows/windows.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2006 Eduardo Cavazos and Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types hashtables kernel math math.vectors math.bitfields
-namespaces sequences x11.xlib x11.constants x11.glx ;
+USING: alien alien.c-types hashtables kernel math math.vectors
+math.bitwise namespaces sequences x11.xlib x11.constants x11.glx ;
 IN: x11.windows
 
 : create-window-mask ( -- n )
diff --git a/extra/unix/linux/epoll/authors.txt b/basis/x11/xim/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/unix/linux/epoll/authors.txt
rename to basis/x11/xim/authors.txt
diff --git a/extra/x11/xim/summary.txt b/basis/x11/xim/summary.txt
similarity index 100%
rename from extra/x11/xim/summary.txt
rename to basis/x11/xim/summary.txt
diff --git a/extra/opengl/tags.txt b/basis/x11/xim/tags.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/opengl/tags.txt
rename to basis/x11/xim/tags.txt
diff --git a/extra/x11/xim/xim.factor b/basis/x11/xim/xim.factor
similarity index 100%
rename from extra/x11/xim/xim.factor
rename to basis/x11/xim/xim.factor
diff --git a/extra/lsys/tortoise/graphics/authors.txt b/basis/x11/xlib/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/lsys/tortoise/graphics/authors.txt
rename to basis/x11/xlib/authors.txt
diff --git a/extra/x11/xlib/summary.txt b/basis/x11/xlib/summary.txt
similarity index 100%
rename from extra/x11/xlib/summary.txt
rename to basis/x11/xlib/summary.txt
diff --git a/extra/unix/tags.txt b/basis/x11/xlib/tags.txt
similarity index 100%
rename from extra/unix/tags.txt
rename to basis/x11/xlib/tags.txt
diff --git a/extra/x11/xlib/xlib.factor b/basis/x11/xlib/xlib.factor
similarity index 98%
rename from extra/x11/xlib/xlib.factor
rename to basis/x11/xlib/xlib.factor
index 154bf4d6ff..eecf427c9e 100755
--- a/extra/x11/xlib/xlib.factor
+++ b/basis/x11/xlib/xlib.factor
@@ -12,7 +12,7 @@
 ! and note the section.
 
 USING: kernel arrays alien alien.c-types alien.strings
-alien.syntax math math.bitfields words sequences namespaces
+alien.syntax math math.bitwise words sequences namespaces
 continuations io.encodings.ascii ;
 IN: x11.xlib
 
@@ -1079,17 +1079,17 @@ FUNCTION: Status XWithdrawWindow (
 
 ! 17.1.7 - Setting and Reading the WM_NORMAL_HINTS Property
 
-: USPosition    1 0 shift ; inline
-: USSize        1 1 shift ; inline
-: PPosition     1 2 shift ; inline
-: PSize         1 3 shift ; inline
-: PMinSize      1 4 shift ; inline
-: PMaxSize      1 5 shift ; inline
-: PResizeInc    1 6 shift ; inline
-: PAspect       1 7 shift ; inline
-: PBaseSize     1 8 shift ; inline
-: PWinGravity   1 9 shift ; inline
-: PAllHints 
+: USPosition   ( -- n ) 0 2^ ; inline
+: USSize       ( -- n ) 1 2^ ; inline
+: PPosition    ( -- n ) 2 2^ ; inline
+: PSize        ( -- n ) 3 2^ ; inline
+: PMinSize     ( -- n ) 4 2^ ; inline
+: PMaxSize     ( -- n ) 5 2^ ; inline
+: PResizeInc   ( -- n ) 6 2^ ; inline
+: PAspect      ( -- n ) 7 2^ ; inline
+: PBaseSize    ( -- n ) 8 2^ ; inline
+: PWinGravity  ( -- n ) 9 2^ ; inline
+: PAllHints    ( -- n )
     { PPosition PSize PMinSize PMaxSize PResizeInc PAspect } flags ; foldable
 
 C-STRUCT: XSizeHints
@@ -1257,8 +1257,8 @@ FUNCTION: Status XSetStandardProperties (
 
 FUNCTION: void XFree ( void* data ) ;
 FUNCTION: int XStoreName ( Display* display, Window w, char* window_name ) ;
-
 FUNCTION: void XSetWMNormalHints ( Display* display, Window w, XSizeHints* hints ) ;
+FUNCTION: int XBell ( Display* display, int percent ) ;
 
 ! !!! INPUT METHODS
 
@@ -1366,7 +1366,7 @@ SYMBOL: root
 
 : x-atom ( string -- atom ) dpy get swap 0 XInternAtom ;
 
-: check-display
+: check-display ( alien -- alien' )
     [
         "Cannot connect to X server - check $DISPLAY" throw
     ] unless* ;
diff --git a/extra/xml/authors.txt b/basis/xml-rpc/authors.txt
similarity index 100%
rename from extra/xml/authors.txt
rename to basis/xml-rpc/authors.txt
diff --git a/extra/xml-rpc/example.factor b/basis/xml-rpc/example.factor
similarity index 86%
rename from extra/xml-rpc/example.factor
rename to basis/xml-rpc/example.factor
index 0223dfde69..836a85d52d 100644
--- a/extra/xml-rpc/example.factor
+++ b/basis/xml-rpc/example.factor
@@ -22,6 +22,6 @@ USING: kernel hashtables xml-rpc xml calendar sequences
     put-http-response ;
 
 : test-rpc-arith
-    "add" { 1 2 } <rpc-method> send-rpc xml>string
-    "text/xml" swap "http://localhost:8080/responder/rpc/"
+    "add" { 1 2 } <rpc-method> send-rpc
+    "http://localhost:8080/responder/rpc/"
     http-post ;
diff --git a/extra/xml-rpc/summary.txt b/basis/xml-rpc/summary.txt
similarity index 100%
rename from extra/xml-rpc/summary.txt
rename to basis/xml-rpc/summary.txt
diff --git a/extra/xml-rpc/tags.txt b/basis/xml-rpc/tags.txt
similarity index 100%
rename from extra/xml-rpc/tags.txt
rename to basis/xml-rpc/tags.txt
diff --git a/extra/xml-rpc/xml-rpc-docs.factor b/basis/xml-rpc/xml-rpc-docs.factor
similarity index 100%
rename from extra/xml-rpc/xml-rpc-docs.factor
rename to basis/xml-rpc/xml-rpc-docs.factor
diff --git a/extra/xml-rpc/xml-rpc-tests.factor b/basis/xml-rpc/xml-rpc-tests.factor
similarity index 100%
rename from extra/xml-rpc/xml-rpc-tests.factor
rename to basis/xml-rpc/xml-rpc-tests.factor
diff --git a/extra/xml-rpc/xml-rpc.factor b/basis/xml-rpc/xml-rpc.factor
similarity index 81%
rename from extra/xml-rpc/xml-rpc.factor
rename to basis/xml-rpc/xml-rpc.factor
index d41f66739c..9472f5e09d 100755
--- a/extra/xml-rpc/xml-rpc.factor
+++ b/basis/xml-rpc/xml-rpc.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2005, 2006 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel xml arrays math generic http.client combinators
-    hashtables namespaces io base64 sequences strings calendar
-    xml.data xml.writer xml.utilities assocs math.parser debugger
-    calendar.format math.order ;
+USING: accessors kernel xml arrays math generic http.client
+combinators hashtables namespaces io base64 sequences strings
+calendar xml.data xml.writer xml.utilities assocs math.parser
+debugger calendar.format math.order ;
 IN: xml-rpc
 
 ! * Sending RPC requests
@@ -17,7 +17,7 @@ M: integer item>xml
     [ "Integers must fit in 32 bits" throw ] unless
     number>string "i4" build-tag ;
 
-PREDICATE: boolean < object { t f } member? ;
+UNION: boolean t POSTPONE: f ;
 
 M: boolean item>xml
     "1" "0" ? "boolean" build-tag ;
@@ -48,7 +48,7 @@ TUPLE: base64 string ;
 C: <base64> base64
 
 M: base64 item>xml
-    base64-string >base64 "base64" build-tag ;
+    string>> >base64 "base64" build-tag ;
 
 : params ( seq -- xml )
     [ item>xml "value" build-tag "param" build-tag ] map
@@ -80,11 +80,11 @@ C: <rpc-fault> rpc-fault
 
 GENERIC: send-rpc ( rpc -- xml )
 M: rpc-method send-rpc
-    [ rpc-method-name ] keep rpc-method-params method-call ;
+    [ name>> ] [ params>> ] bi method-call ;
 M: rpc-response send-rpc
-    rpc-response-params return-params ;
+    params>> return-params ;
 M: rpc-fault send-rpc
-    [ rpc-fault-code ] keep rpc-fault-string return-fault ;
+    [ code>> ] [ string>> ] bi return-fault ;
 
 ! * Recieving RPC requests
 ! this needs to have much better error checking
@@ -96,8 +96,8 @@ TUPLE: server-error tag message ;
 
 M: server-error error.
     "Error in XML supplied to server" print
-    "Description: " write dup server-error-message print
-    "Tag: " write server-error-tag xml>string print ;
+    "Description: " write dup message>> print
+    "Tag: " write tag>> xml>string print ;
 
 PROCESS: xml>item ( tag -- object )
 
@@ -139,18 +139,18 @@ TAG: array xml>item
     first-child-tag params>array ;
 
 : parse-method ( xml -- string array )
-    children-tags dup first children>string
-    swap second params>array ;
+    children-tags first2
+    [ children>string ] [ params>array ] bi* ;
 
 : parse-fault ( xml -- fault-code fault-string )
     first-child-tag first-child-tag first-child-tag
     xml>item [ "faultCode" get "faultString" get ] bind ;
 
 : receive-rpc ( xml -- rpc )
-    dup name-tag dup "methodCall" =
+    dup main>> dup "methodCall" =
     [ drop parse-method <rpc-method> ] [
         "methodResponse" = [
-            dup first-child-tag name-tag "fault" =
+            dup first-child-tag main>> "fault" =
             [ parse-fault <rpc-fault> ]
             [ parse-rpc-response <rpc-response> ] if
         ] [ "Bad main tag name" server-error ] if
@@ -158,8 +158,7 @@ TAG: array xml>item
 
 : post-rpc ( rpc url -- rpc )
     ! This needs to do something in the event of an error
-    >r "text/xml" swap send-rpc xml>string r> http-post
-    2nip string>xml receive-rpc ;
+    >r send-rpc r> http-post nip string>xml receive-rpc ;
 
 : invoke-method ( params method url -- )
     >r swap <rpc-method> r> post-rpc ;
diff --git a/extra/xml/char-classes/authors.txt b/basis/xml/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/xml/char-classes/authors.txt
rename to basis/xml/authors.txt
diff --git a/extra/xml/backend/backend.factor b/basis/xml/backend/backend.factor
similarity index 100%
rename from extra/xml/backend/backend.factor
rename to basis/xml/backend/backend.factor
diff --git a/extra/xml/data/authors.txt b/basis/xml/char-classes/authors.txt
similarity index 100%
rename from extra/xml/data/authors.txt
rename to basis/xml/char-classes/authors.txt
diff --git a/extra/xml/char-classes/char-classes.factor b/basis/xml/char-classes/char-classes.factor
similarity index 100%
rename from extra/xml/char-classes/char-classes.factor
rename to basis/xml/char-classes/char-classes.factor
diff --git a/extra/xml/entities/authors.txt b/basis/xml/data/authors.txt
similarity index 100%
rename from extra/xml/entities/authors.txt
rename to basis/xml/data/authors.txt
diff --git a/extra/xml/data/data.factor b/basis/xml/data/data.factor
similarity index 56%
rename from extra/xml/data/data.factor
rename to basis/xml/data/data.factor
index da2e4ccb32..0af2ec4700 100755
--- a/extra/xml/data/data.factor
+++ b/basis/xml/data/data.factor
@@ -1,25 +1,26 @@
 ! Copyright (C) 2005, 2006 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences sequences.private assocs arrays
-delegate.protocols delegate vectors ;
+delegate.protocols delegate vectors accessors multiline
+macros words quotations combinators slots ;
 IN: xml.data
 
-TUPLE: name space tag url ;
+TUPLE: name space main url ;
 C: <name> name
 
 : ?= ( object/f object/f -- ? )
     2dup and [ = ] [ 2drop t ] if ;
 
 : names-match? ( name1 name2 -- ? )
-    [ name-space swap name-space ?= ] 2keep
-    [ name-url swap name-url ?= ] 2keep
-    name-tag swap name-tag ?= and and ;
+    [ [ space>> ] bi@ ?= ]
+    [ [ url>> ] bi@ ?= ]
+    [ [ main>> ] bi@ ?= ] 2tri and and ;
 
-: <name-tag> ( string -- name )
+: <simple-name> ( string -- name )
     f swap f <name> ;
 
 : assure-name ( string/name -- name )
-    dup name? [ <name-tag> ] unless ;
+    dup name? [ <simple-name> ] unless ;
 
 TUPLE: opener name attrs ;
 C: <opener> opener
@@ -42,13 +43,11 @@ C: <instruction> instruction
 TUPLE: prolog version encoding standalone ;
 C: <prolog> prolog
 
-TUPLE: tag attrs children ;
-
 TUPLE: attrs alist ;
 C: <attrs> attrs
 
 : attr@ ( key alist -- index {key,value} )
-    >r assure-name r> attrs-alist
+    >r assure-name r> alist>>
     [ first names-match? ] with find ;
 
 M: attrs at*
@@ -58,12 +57,12 @@ M: attrs set-at
         2nip set-second
     ] [
         >r assure-name swap 2array r>
-        [ attrs-alist ?push ] keep set-attrs-alist
+        [ alist>> ?push ] keep (>>alist)
     ] if* ;
 
-M: attrs assoc-size attrs-alist length ;
+M: attrs assoc-size alist>> length ;
 M: attrs new-assoc drop V{ } new-sequence <attrs> ;
-M: attrs >alist attrs-alist ;
+M: attrs >alist alist>> ;
 
 : >attrs ( assoc -- attrs )
     dup [
@@ -74,61 +73,71 @@ M: attrs assoc-like
     drop dup attrs? [ >attrs ] unless ;
 
 M: attrs clear-assoc
-    f swap set-attrs-alist ;
+    f >>alist drop ;
 M: attrs delete-at
-    tuck attr@ drop [ swap attrs-alist delete-nth ] [ drop ] if* ;
+    tuck attr@ drop [ swap alist>> delete-nth ] [ drop ] if* ;
 
 M: attrs clone
-    attrs-alist clone <attrs> ;
+    alist>> clone <attrs> ;
 
 INSTANCE: attrs assoc
 
+TUPLE: tag name attrs children ;
+
 : <tag> ( name attrs children -- tag )
-    >r >r assure-name r> T{ attrs } assoc-like r>
-    { set-delegate set-tag-attrs set-tag-children }
-    tag construct ;
+    [ assure-name ] [ T{ attrs } assoc-like ] [ ] tri*
+    tag boa ;
 
 ! For convenience, tags follow the assoc protocol too (for attrs)
-CONSULT: assoc-protocol tag tag-attrs ;
+CONSULT: assoc-protocol tag attrs>> ;
 INSTANCE: tag assoc
 
 ! They also follow the sequence protocol (for children)
-CONSULT: sequence-protocol tag tag-children ;
+CONSULT: sequence-protocol tag children>> ;
 INSTANCE: tag sequence
 
+CONSULT: name tag name>> ;
+
 M: tag like
     over tag? [ drop ] [
-        [ delegate ] keep tag-attrs
+        [ name>> ] keep attrs>>
         rot dup [ V{ } like ] when <tag>
     ] if ;
 
+MACRO: clone-slots ( class -- tuple )
+    [
+        "slots" word-prop
+        [ name>> reader-word 1quotation [ clone ] compose ] map
+        [ cleave ] curry
+    ] [ [ boa ] curry ] bi compose ;
+
 M: tag clone
-    [ delegate clone ] keep [ tag-attrs clone ] keep
-    tag-children clone
-    { set-delegate set-tag-attrs set-tag-children } tag construct ;
+    tag clone-slots ;
 
-TUPLE: xml prolog before main after ;
-: <xml> ( prolog before main after -- xml )
-    { set-xml-prolog set-xml-before set-delegate set-xml-after }
-    xml construct ;
+TUPLE: xml prolog before body after ;
+C: <xml> xml
 
-CONSULT: sequence-protocol xml delegate ;
+CONSULT: sequence-protocol xml body>> ;
 INSTANCE: xml sequence
 
-CONSULT: assoc-protocol xml delegate ;
+CONSULT: assoc-protocol xml body>> ;
 INSTANCE: xml assoc
 
+CONSULT: tag xml body>> ;
+
+CONSULT: name xml body>> ;
+
 <PRIVATE
 : tag>xml ( xml tag -- newxml )
-    swap [ dup xml-prolog swap xml-before rot ] keep xml-after <xml> ;
+    >r [ prolog>> ] [ before>> ] [ after>> ] tri r>
+    swap <xml> ;
 
 : seq>xml ( xml seq -- newxml )
-    over delegate like tag>xml ;
+    over body>> like tag>xml ;
 PRIVATE>
 
 M: xml clone
-    [ xml-prolog clone ] keep [ xml-before clone ] keep
-    [ delegate clone ] keep xml-after clone <xml> ;
+   xml clone-slots ;
 
 M: xml like
     swap dup xml? [ nip ] [
@@ -139,5 +148,5 @@ M: xml like
 : <contained-tag> ( name attrs -- tag )
     f <tag> ;
 
-PREDICATE: contained-tag < tag tag-children not ;
-PREDICATE: open-tag < tag tag-children ;
+PREDICATE: contained-tag < tag children>> not ;
+PREDICATE: open-tag < tag children>> ;
diff --git a/extra/xml/errors/authors.txt b/basis/xml/entities/authors.txt
similarity index 100%
rename from extra/xml/errors/authors.txt
rename to basis/xml/entities/authors.txt
diff --git a/extra/xml/entities/entities.factor b/basis/xml/entities/entities.factor
similarity index 100%
rename from extra/xml/entities/entities.factor
rename to basis/xml/entities/entities.factor
diff --git a/extra/xml/generator/authors.txt b/basis/xml/errors/authors.txt
similarity index 100%
rename from extra/xml/generator/authors.txt
rename to basis/xml/errors/authors.txt
diff --git a/extra/xml/errors/errors-tests.factor b/basis/xml/errors/errors-tests.factor
similarity index 97%
rename from extra/xml/errors/errors-tests.factor
rename to basis/xml/errors/errors-tests.factor
index 402c76dc01..ab061530fe 100755
--- a/extra/xml/errors/errors-tests.factor
+++ b/basis/xml/errors/errors-tests.factor
@@ -14,7 +14,7 @@ T{ not-yes/no f 1 41 "maybe" } "<?xml version='1.0' standalone='maybe'?><x/>" xm
 T{ extra-attrs f 1 32 V{ T{ name f "" "foo" f } }
 } "<?xml version='1.1' foo='bar'?><x/>" xml-error-test
 T{ bad-version f 1 28 "5 million" } "<?xml version='5 million'?><x/>" xml-error-test
-T{ notags f 1 0 } "" xml-error-test
+T{ notags f } "" xml-error-test
 T{ multitags } "<x/><y/>" xml-error-test
 T{ bad-prolog  f 1 26 T{ prolog f "1.0" "UTF-8" f }
 } "<x/><?xml version='1.0'?>" xml-error-test
diff --git a/extra/xml/errors/errors.factor b/basis/xml/errors/errors.factor
similarity index 96%
rename from extra/xml/errors/errors.factor
rename to basis/xml/errors/errors.factor
index 53f2046a54..bafa325e89 100644
--- a/extra/xml/errors/errors.factor
+++ b/basis/xml/errors/errors.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2006 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
 USING: xml.data xml.writer kernel generic io prettyprint math 
-debugger sequences state-parser accessors inspector
+debugger sequences state-parser accessors summary
 namespaces io.streams.string xml.backend ;
 IN: xml.errors
 
@@ -40,7 +40,7 @@ M: xml-string-error summary ( obj -- str )
     ] with-string-writer ;
 
 TUPLE: mismatched < parsing-error open close ;
-: <mismatched>
+: <mismatched> ( open close -- error )
     \ mismatched parsing-error swap >>close swap >>open ;
 M: mismatched summary ( obj -- str )
     [
@@ -53,7 +53,7 @@ M: mismatched summary ( obj -- str )
 TUPLE: unclosed < parsing-error tags ;
 : <unclosed> ( -- unclosed )
     unclosed parsing-error
-        xml-stack get rest-slice [ first opener-name ] map >>tags ;
+        xml-stack get rest-slice [ first name>> ] map >>tags ;
 M: unclosed summary ( obj -- str )
     [
         dup call-next-method write
@@ -111,7 +111,7 @@ M: extra-attrs summary ( obj -- str )
     ] with-string-writer ;
 
 TUPLE: bad-version < parsing-error num ;
-: <bad-version>
+: <bad-version> ( num -- error )
     \ bad-version parsing-error swap >>num ;
 M: bad-version summary ( obj -- str )
     [
@@ -171,7 +171,7 @@ M: bad-directive summary ( obj -- str )
     [
         dup call-next-method write
         "Misplaced directive:" print
-        bad-directive-dir write-item nl
+        dir>> write-item nl
     ] with-string-writer ;
 
 UNION: xml-parse-error multitags notags extra-attrs nonexist-ns
diff --git a/extra/xml/tests/authors.txt b/basis/xml/generator/authors.txt
similarity index 100%
rename from extra/xml/tests/authors.txt
rename to basis/xml/generator/authors.txt
diff --git a/basis/xml/generator/generator-tests.factor b/basis/xml/generator/generator-tests.factor
new file mode 100644
index 0000000000..052e5eab7f
--- /dev/null
+++ b/basis/xml/generator/generator-tests.factor
@@ -0,0 +1,3 @@
+USING: tools.test io.streams.string xml.generator xml.writer accessors ;
+[ "<html><body><a href=\"blah\"/></body></html>" ]
+[ "html" [ "body" [ "a" { { "href" "blah" } } contained*, ] tag, ] make-xml [ body>> write-item ] with-string-writer ] unit-test
diff --git a/basis/xml/generator/generator.factor b/basis/xml/generator/generator.factor
new file mode 100644
index 0000000000..0de1692e00
--- /dev/null
+++ b/basis/xml/generator/generator.factor
@@ -0,0 +1,25 @@
+! Copyright (C) 2006, 2007 Daniel Ehrenberg
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces kernel xml.data xml.utilities assocs sequences ;
+IN: xml.generator
+
+: comment, ( string -- ) <comment> , ;
+: directive, ( string -- ) <directive> , ;
+: instruction, ( string -- ) <instruction> , ;
+: nl, ( -- ) "\n" , ;
+
+: (tag,) ( name attrs quot -- tag )
+    -rot >r >r V{ } make r> r> rot <tag> ; inline
+: tag*, ( name attrs quot -- )
+    (tag,) , ; inline
+
+: contained*, ( name attrs -- )
+    f <tag> , ;
+
+: tag, ( name quot -- ) f swap tag*, ; inline
+: contained, ( name -- ) f contained*, ; inline
+
+: make-xml* ( name attrs quot -- xml )
+    (tag,) build-xml ; inline
+: make-xml ( name quot -- xml )
+    f swap make-xml* ; inline
diff --git a/extra/xml/summary.txt b/basis/xml/summary.txt
similarity index 100%
rename from extra/xml/summary.txt
rename to basis/xml/summary.txt
diff --git a/extra/xml/tags.txt b/basis/xml/tags.txt
similarity index 100%
rename from extra/xml/tags.txt
rename to basis/xml/tags.txt
diff --git a/extra/xml/tests/arithmetic.factor b/basis/xml/tests/arithmetic.factor
similarity index 100%
rename from extra/xml/tests/arithmetic.factor
rename to basis/xml/tests/arithmetic.factor
diff --git a/extra/xml/tokenize/authors.txt b/basis/xml/tests/authors.txt
similarity index 100%
rename from extra/xml/tokenize/authors.txt
rename to basis/xml/tests/authors.txt
diff --git a/extra/xml/tests/soap.factor b/basis/xml/tests/soap.factor
similarity index 88%
rename from extra/xml/tests/soap.factor
rename to basis/xml/tests/soap.factor
index c7452bb079..d2568a24e1 100755
--- a/extra/xml/tests/soap.factor
+++ b/basis/xml/tests/soap.factor
@@ -10,6 +10,6 @@ IN: xml.tests
     [ assemble-data ] map ;
 
 [ "http://www.foxnews.com/oreilly/" ] [
-    "resource:extra/xml/tests/soap.xml" file>xml
+    "resource:basis/xml/tests/soap.xml" file>xml
     parse-result first first
 ] unit-test
diff --git a/extra/xml/tests/soap.xml b/basis/xml/tests/soap.xml
similarity index 100%
rename from extra/xml/tests/soap.xml
rename to basis/xml/tests/soap.xml
diff --git a/extra/xml/tests/templating.factor b/basis/xml/tests/templating.factor
similarity index 86%
rename from extra/xml/tests/templating.factor
rename to basis/xml/tests/templating.factor
index d81e807fe5..e95dad6618 100644
--- a/extra/xml/tests/templating.factor
+++ b/basis/xml/tests/templating.factor
@@ -1,5 +1,5 @@
 USING: kernel xml sequences assocs tools.test io arrays namespaces
-    xml.data xml.utilities xml.writer generic sequences.deep ;
+accessors xml.data xml.utilities xml.writer generic sequences.deep ;
 IN: xml.tests
 
 : sub-tag
@@ -11,7 +11,7 @@ GENERIC: (r-ref) ( xml -- )
 M: tag (r-ref)
     sub-tag over at* [
         ref-table get at
-        swap set-tag-children
+        >>children drop
     ] [ 2drop ] if ;
 M: object (r-ref) drop ;
 
@@ -34,7 +34,7 @@ M: object (r-ref) drop ;
     [
         H{
             { "foo" { "foo" } }
-            { "bar" { "blah" T{ tag T{ name f "" "a" "" } V{ } f } } }
+            { "bar" { "blah" T{ tag f T{ name f "" "a" "" } f f } } }
             { "baz" f }
         } ref-table set
         sample-doc string>xml dup template xml>string
diff --git a/extra/xml/tests/test.factor b/basis/xml/tests/test.factor
similarity index 74%
rename from extra/xml/tests/test.factor
rename to basis/xml/tests/test.factor
index 7794930144..f2bd5ce1e3 100644
--- a/extra/xml/tests/test.factor
+++ b/basis/xml/tests/test.factor
@@ -3,30 +3,30 @@
 IN: xml.tests
 USING: kernel xml tools.test io namespaces sequences xml.errors xml.entities
     parser strings xml.data io.files xml.writer xml.utilities state-parser 
-    continuations assocs sequences.deep ;
+    continuations assocs sequences.deep accessors ;
 
 ! This is insufficient
 \ read-xml must-infer
 
 SYMBOL: xml-file
-[ ] [ "resource:extra/xml/tests/test.xml"
+[ ] [ "resource:basis/xml/tests/test.xml"
     [ file>xml ] with-html-entities xml-file set ] unit-test
-[ "1.0" ] [ xml-file get xml-prolog prolog-version ] unit-test
-[ f ] [ xml-file get xml-prolog prolog-standalone ] unit-test
-[ "a" ] [ xml-file get name-space ] unit-test
-[ "http://www.hello.com" ] [ xml-file get name-url ] unit-test
+[ "1.0" ] [ xml-file get prolog>> version>> ] unit-test
+[ f ] [ xml-file get prolog>> standalone>> ] unit-test
+[ "a" ] [ xml-file get space>> ] unit-test
+[ "http://www.hello.com" ] [ xml-file get url>> ] unit-test
 [ "that" ] [
     xml-file get T{ name f "" "this" "http://d.de" } swap at
 ] unit-test
-[ t ] [ xml-file get tag-children second contained-tag? ] unit-test
+[ t ] [ xml-file get children>> second contained-tag? ] unit-test
 [ "<a></b>" string>xml ] [ xml-parse-error? ] must-fail-with
 [ T{ comment f "This is where the fun begins!" } ] [
-    xml-file get xml-before [ comment? ] find nip
+    xml-file get before>> [ comment? ] find nip
 ] unit-test
 [ "xsl stylesheet=\"that-one.xsl\"" ] [
-    xml-file get xml-after [ instruction? ] find nip instruction-text
+    xml-file get after>> [ instruction? ] find nip text>>
 ] unit-test
-[ V{ "fa&g" } ] [ xml-file get "x" get-id tag-children ] unit-test
+[ V{ "fa&g" } ] [ xml-file get "x" get-id children>> ] unit-test
 [ "that" ] [ xml-file get "this" swap at ] unit-test
 [ "<?xml version=\"1.0\" encoding=\"UTF-8\"?><a b=\"c\"/>" ]
     [ "<a b='c'/>" string>xml xml>string ] unit-test
diff --git a/extra/xml/tests/test.xml b/basis/xml/tests/test.xml
similarity index 100%
rename from extra/xml/tests/test.xml
rename to basis/xml/tests/test.xml
diff --git a/extra/xml/utilities/authors.txt b/basis/xml/tokenize/authors.txt
similarity index 100%
rename from extra/xml/utilities/authors.txt
rename to basis/xml/tokenize/authors.txt
diff --git a/extra/xml/tokenize/tokenize.factor b/basis/xml/tokenize/tokenize.factor
similarity index 93%
rename from extra/xml/tokenize/tokenize.factor
rename to basis/xml/tokenize/tokenize.factor
index b4ff3a4ce9..0c3ef2c1df 100644
--- a/extra/xml/tokenize/tokenize.factor
+++ b/basis/xml/tokenize/tokenize.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: xml.errors xml.data xml.utilities xml.char-classes sets
 xml.entities kernel state-parser kernel namespaces strings math
-math.parser sequences assocs arrays splitting combinators unicode.case ;
+math.parser sequences assocs arrays splitting combinators unicode.case
+accessors ;
 IN: xml.tokenize
 
 ! XML namespace processing: ns = namespace
@@ -14,8 +15,8 @@ SYMBOL: ns-stack
     ! this should check to make sure URIs are valid
     [
         [
-            swap dup name-space "xmlns" =
-            [ name-tag set ]
+            swap dup space>> "xmlns" =
+            [ main>> set ]
             [
                 T{ name f "" "xmlns" f } names-match?
                 [ "" set ] [ drop ] if
@@ -24,8 +25,8 @@ SYMBOL: ns-stack
     ] { } make-assoc f like ;
 
 : add-ns ( name -- )
-    dup name-space dup ns-stack get assoc-stack
-    [ nip ] [ <nonexist-ns> throw ] if* swap set-name-url ;
+    dup space>> dup ns-stack get assoc-stack
+    [ nip ] [ <nonexist-ns> throw ] if* >>url drop ;
 
 : push-ns ( hash -- )
     ns-stack get push ;
@@ -48,7 +49,7 @@ SYMBOL: ns-stack
 ! Parsing names
 
 : version=1.0? ( -- ? )
-    prolog-data get prolog-version "1.0" = ;
+    prolog-data get version>> "1.0" = ;
 
 ! version=1.0? is calculated once and passed around for efficiency
 
@@ -68,7 +69,7 @@ SYMBOL: ns-stack
 
 : (parse-entity) ( string -- )
     dup entities at [ , ] [ 
-        prolog-data get prolog-standalone
+        prolog-data get standalone>>
         [ <no-entity> throw ] [
             dup extra-entities get at
             [ , ] [ <no-entity> throw ] ?if
@@ -163,7 +164,7 @@ SYMBOL: ns-stack
         T{ name f "" "encoding" f }
         T{ name f "" "standalone" f }
     } diff
-    dup empty? [ drop ] [ <extra-attrs> throw ] if ; 
+    [ <extra-attrs> throw ] unless-empty ; 
 
 : good-version ( version -- version )
     dup { "1.0" "1.1" } member? [ <bad-version> throw ] unless ;
diff --git a/extra/xml/writer/authors.txt b/basis/xml/utilities/authors.txt
similarity index 100%
rename from extra/xml/writer/authors.txt
rename to basis/xml/utilities/authors.txt
diff --git a/basis/xml/utilities/utilities-tests.factor b/basis/xml/utilities/utilities-tests.factor
new file mode 100644
index 0000000000..c150c7133d
--- /dev/null
+++ b/basis/xml/utilities/utilities-tests.factor
@@ -0,0 +1,8 @@
+IN: xml.utilities.tests
+USING: xml xml.utilities tools.test ;
+
+[ "bar" ] [ "<foo>bar</foo>" string>xml children>string ] unit-test
+
+[ "" ] [ "<foo></foo>" string>xml children>string ] unit-test
+
+[ "" ] [ "<foo/>" string>xml children>string ] unit-test
diff --git a/extra/xml/utilities/utilities.factor b/basis/xml/utilities/utilities.factor
similarity index 80%
rename from extra/xml/utilities/utilities.factor
rename to basis/xml/utilities/utilities.factor
index 87a0242412..2acb353bb6 100755
--- a/extra/xml/utilities/utilities.factor
+++ b/basis/xml/utilities/utilities.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2005, 2006 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel namespaces sequences words io assocs
-quotations strings parser arrays xml.data xml.writer debugger
-splitting vectors sequences.deep ;
+USING: accessors kernel namespaces sequences words io assocs
+quotations strings parser lexer arrays xml.data xml.writer debugger
+splitting vectors sequences.deep combinators ;
 IN: xml.utilities
 
 ! * System for words specialized on tag names
@@ -10,13 +10,13 @@ IN: xml.utilities
 TUPLE: process-missing process tag ;
 M: process-missing error.
     "Tag <" write
-    dup process-missing-tag print-name
+    dup tag>> print-name
     "> not implemented on process process " write
-    process-missing-process word-name print ;
+    name>> print ;
 
 : run-process ( tag word -- )
     2dup "xtable" word-prop
-    >r dup name-tag r> at* [ 2nip call ] [
+    >r dup main>> r> at* [ 2nip call ] [
         drop \ process-missing boa throw
     ] if ;
 
@@ -48,16 +48,18 @@ M: process-missing error.
     standard-prolog { } rot { } <xml> ;
 
 : children>string ( tag -- string )
-    tag-children
-    dup [ string? ] all?
-    [ "XML tag unexpectedly contains non-text children" throw ] unless
-    concat ;
+    children>> {
+        { [ dup empty? ] [ drop "" ] }
+        { [ dup [ string? not ] contains? ]
+          [ "XML tag unexpectedly contains non-text children" throw ] }
+        [ concat ]
+    } cond ;
 
 : children-tags ( tag -- sequence )
-    tag-children [ tag? ] filter ;
+    children>> [ tag? ] filter ;
 
 : first-child-tag ( tag -- tag )
-    tag-children [ tag? ] find nip ;
+    children>> [ tag? ] find nip ;
 
 ! * Accessing part of an XML document
 ! for tag- words, a start means that it searches all children
@@ -90,7 +92,7 @@ M: process-missing error.
     assure-name [ tag-with-attr? ] 2curry find nip ;
 
 : tags-with-attr ( tag attr-value attr-name -- tags-seq )
-    tags@ [ tag-with-attr? ] 2curry filter tag-children ;
+    tags@ [ tag-with-attr? ] 2curry filter children>> ;
 
 : deep-tag-with-attr ( tag attr-value attr-name -- matching-tag )
     assure-name [ tag-with-attr? ] 2curry deep-find ;
@@ -108,8 +110,8 @@ M: process-missing error.
     names-match? [ "Unexpected XML tag found" throw ] unless ;
 
 : insert-children ( children tag -- )
-    dup tag-children [ push-all ]
-    [ >r V{ } like r> set-tag-children ] if ;
+    dup children>> [ push-all ]
+    [ swap V{ } like >>children drop ] if ;
 
 : insert-child ( child tag -- )
     >r 1vector r> insert-children ;
diff --git a/unmaintained/shufflers/authors.txt b/basis/xml/writer/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from unmaintained/shufflers/authors.txt
rename to basis/xml/writer/authors.txt
diff --git a/basis/xml/writer/writer-tests.factor b/basis/xml/writer/writer-tests.factor
new file mode 100644
index 0000000000..acfe4bfe1e
--- /dev/null
+++ b/basis/xml/writer/writer-tests.factor
@@ -0,0 +1,5 @@
+IN: xml.writer.tests
+USING: xml.data xml.writer tools.test ;
+
+[ "foo" ] [ T{ name { main "foo" } } name>string ] unit-test
+[ "ns:foo" ] [ T{ name { space "ns" } { main "foo" } } name>string ] unit-test
diff --git a/extra/xml/writer/writer.factor b/basis/xml/writer/writer.factor
similarity index 74%
rename from extra/xml/writer/writer.factor
rename to basis/xml/writer/writer.factor
index 41e5422830..ae6fddacc3 100644
--- a/extra/xml/writer/writer.factor
+++ b/basis/xml/writer/writer.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2006 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
 USING: hashtables kernel math namespaces sequences strings
-assocs combinators io io.streams.string
+assocs combinators io io.streams.string accessors
 xml.data wrap xml.entities unicode.categories ;
 IN: xml.writer
 
@@ -34,13 +34,14 @@ SYMBOL: indenter
 : ?filter-children ( children -- no-whitespace )
     xml-pprint? get [
         [ dup string? [ trim-whitespace ] when ] map
-        [ dup empty? swap string? and not ] filter
+        [ [ empty? ] [ string? ] bi and not ] filter
     ] when ;
 
+: name>string ( name -- string )
+    [ main>> ] [ space>> ] bi [ ":" rot 3append ] unless-empty ;
+
 : print-name ( name -- )
-    dup name-space f like
-    [ write CHAR: : write1 ] when*
-    name-tag write ;
+    name>string write ;
 
 : print-attrs ( assoc -- )
     [
@@ -59,7 +60,7 @@ M: string write-item
 
 : write-tag ( tag -- )
     ?indent CHAR: < write1
-    dup print-name tag-attrs print-attrs ;
+    dup print-name attrs>> print-attrs ;
 
 : write-start-tag ( tag -- )
     write-tag ">" write ;
@@ -68,7 +69,7 @@ M: contained-tag write-item
     write-tag "/>" write ;
 
 : write-children ( tag -- )
-    indent tag-children ?filter-children
+    indent children>> ?filter-children
     [ write-item ] each unindent ;
 
 : write-end-tag ( tag -- )
@@ -85,18 +86,18 @@ M: open-tag write-item
     r> xml-pprint? set ;
 
 M: comment write-item
-    "<!--" write comment-text write "-->" write ;
+    "<!--" write text>> write "-->" write ;
 
 M: directive write-item
-    "<!" write directive-text write CHAR: > write1 ;
+    "<!" write text>> write CHAR: > write1 ;
 
 M: instruction write-item
-    "<?" write instruction-text write "?>" write ;
+    "<?" write text>> write "?>" write ;
 
 : write-prolog ( xml -- )
-    "<?xml version=\"" write dup prolog-version write
-    "\" encoding=\"" write dup prolog-encoding write
-    prolog-standalone [ "\" standalone=\"yes" write ] when
+    "<?xml version=\"" write dup version>> write
+    "\" encoding=\"" write dup encoding>> write
+    standalone>> [ "\" standalone=\"yes" write ] when
     "\"?>" write ;
 
 : write-chunk ( seq -- )
@@ -104,12 +105,15 @@ M: instruction write-item
 
 : write-xml ( xml -- )
     {
-        [ xml-prolog write-prolog ]
-        [ xml-before write-chunk ]
-        [ write-item ]
-        [ xml-after write-chunk ]
+        [ prolog>> write-prolog ]
+        [ before>> write-chunk ]
+        [ body>> write-item ]
+        [ after>> write-chunk ]
     } cleave ;
 
+M: xml write-item
+    body>> write-item ;
+
 : print-xml ( xml -- )
     write-xml nl ;
 
diff --git a/extra/xml/xml-docs.factor b/basis/xml/xml-docs.factor
similarity index 100%
rename from extra/xml/xml-docs.factor
rename to basis/xml/xml-docs.factor
diff --git a/extra/xml/xml.factor b/basis/xml/xml.factor
similarity index 90%
rename from extra/xml/xml.factor
rename to basis/xml/xml.factor
index 4e2ad7a672..67168bfb49 100644
--- a/extra/xml/xml.factor
+++ b/basis/xml/xml.factor
@@ -38,19 +38,19 @@ M: directive process
     add-child ;
 
 M: contained process
-    [ contained-name ] keep contained-attrs 
+    [ name>> ] [ attrs>> ] bi
     <contained-tag> add-child ;
 
 M: opener process push-xml ;
 
 : check-closer ( name opener -- name opener )
     dup [ <unopened> throw ] unless
-    2dup opener-name =
-    [ opener-name swap <mismatched> throw ] unless ;
+    2dup name>> =
+    [ name>> swap <mismatched> throw ] unless ;
 
 M: closer process
-    closer-name pop-xml first2
-    >r check-closer opener-attrs r>
+    name>> pop-xml first2
+    >r check-closer attrs>> r>
     <tag> add-child ;
 
 : init-xml-stack ( -- )
@@ -102,10 +102,10 @@ TUPLE: pull-xml scope ;
         init-parser reset-prolog init-ns-stack
         text-now? on
     ] H{ } make-assoc
-    { set-pull-xml-scope } pull-xml construct ;
+    pull-xml boa ;
 
 : pull-event ( pull -- xml-event/f )
-    pull-xml-scope [
+    scope>> [
         text-now? get [ parse-text f ] [
             get-char [ make-tag t ] [ f f ] if
         ] if text-now? set
@@ -127,17 +127,17 @@ TUPLE: pull-xml scope ;
 : call-under ( quot object -- quot )
     swap dup slip ; inline
 
-: sax-loop ( quot -- ) ! quot: xml-elem --
+: sax-loop ( quot: ( xml-elem -- ) -- )
     parse-text call-under
     get-char [ make-tag call-under sax-loop ]
-    [ drop ] if ; inline
+    [ drop ] if ; inline recursive
 
-: sax ( stream quot -- ) ! quot: xml-elem --
+: sax ( stream quot: ( xml-elem -- ) -- )
     swap [
         reset-prolog init-ns-stack
         prolog-data get call-under
         sax-loop
-    ] state-parse ; inline
+    ] state-parse ; inline recursive
 
 : (read-xml) ( -- )
     [ process ] sax-loop ; inline
diff --git a/extra/xmode/README.txt b/basis/xmode/README.txt
similarity index 100%
rename from extra/xmode/README.txt
rename to basis/xmode/README.txt
diff --git a/extra/unix/solaris/authors.txt b/basis/xmode/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/unix/solaris/authors.txt
rename to basis/xmode/authors.txt
diff --git a/extra/urls/authors.txt b/basis/xmode/catalog/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/urls/authors.txt
rename to basis/xmode/catalog/authors.txt
diff --git a/extra/xmode/catalog/catalog-tests.factor b/basis/xmode/catalog/catalog-tests.factor
similarity index 100%
rename from extra/xmode/catalog/catalog-tests.factor
rename to basis/xmode/catalog/catalog-tests.factor
diff --git a/extra/xmode/catalog/catalog.factor b/basis/xmode/catalog/catalog.factor
similarity index 69%
rename from extra/xmode/catalog/catalog.factor
rename to basis/xmode/catalog/catalog.factor
index 8c6025f726..16da4be1d3 100755
--- a/extra/xmode/catalog/catalog.factor
+++ b/basis/xmode/catalog/catalog.factor
@@ -1,18 +1,18 @@
 USING: xmode.loader xmode.utilities xmode.rules namespaces
 strings splitting assocs sequences kernel io.files xml memoize
-words globs combinators io.encodings.utf8 sorting ;
+words globs combinators io.encodings.utf8 sorting accessors ;
 IN: xmode.catalog
 
 TUPLE: mode file file-name-glob first-line-glob ;
 
-<TAGS: parse-mode-tag
+<TAGS: parse-mode-tag ( modes tag -- )
 
 TAG: MODE
     "NAME" over at >r
     mode new {
-        { "FILE" f set-mode-file }
-        { "FILE_NAME_GLOB" f set-mode-file-name-glob }
-        { "FIRST_LINE_GLOB" f set-mode-first-line-glob }
+        { "FILE" f (>>file) }
+        { "FILE_NAME_GLOB" f (>>file-name-glob) }
+        { "FIRST_LINE_GLOB" f (>>first-line-glob) }
     } init-from-tag r>
     rot set-at ;
 
@@ -24,7 +24,7 @@ TAGS>
     ] keep ;
 
 MEMO: modes ( -- modes )
-    "resource:extra/xmode/modes/catalog"
+    "resource:basis/xmode/modes/catalog"
     file>xml parse-modes-tag ;
 
 MEMO: mode-names ( -- modes )
@@ -35,8 +35,8 @@ MEMO: mode-names ( -- modes )
 
 MEMO: (load-mode) ( name -- rule-sets )
     modes at [
-        mode-file
-        "resource:extra/xmode/modes/" prepend
+        file>>
+        "resource:basis/xmode/modes/" prepend
         utf8 <file-reader> parse-mode
     ] [
         "text" (load-mode)
@@ -52,11 +52,11 @@ SYMBOL: rule-sets
     dup -roll at* [ nip ] [ drop no-such-rule-set ] if ;
 
 : resolve-delegate ( rule -- )
-    dup rule-delegate dup string?
-    [ get-rule-set nip swap set-rule-delegate ] [ 2drop ] if ;
+    dup delegate>> dup string?
+    [ get-rule-set nip swap (>>delegate) ] [ 2drop ] if ;
 
 : each-rule ( rule-set quot -- )
-    >r rule-set-rules values concat r> each ; inline
+    >r rules>> values concat r> each ; inline
 
 : resolve-delegates ( ruleset -- )
     [ resolve-delegate ] each-rule ;
@@ -65,14 +65,14 @@ SYMBOL: rule-sets
     over [ dupd update ] [ nip clone ] if ;
 
 : import-keywords ( parent child -- )
-    over >r [ rule-set-keywords ] bi@ ?update
-    r> set-rule-set-keywords ;
+    over >r [ keywords>> ] bi@ ?update
+    r> (>>keywords) ;
 
 : import-rules ( parent child -- )
     swap [ add-rule ] curry each-rule ;
 
 : resolve-imports ( ruleset -- )
-    dup rule-set-imports [
+    dup imports>> [
         get-rule-set swap rule-sets [
             dup resolve-delegates
             2dup import-keywords
@@ -80,16 +80,19 @@ SYMBOL: rule-sets
         ] with-variable
     ] with each ;
 
+ERROR: mutually-recursive-rulesets ruleset ;
 : finalize-rule-set ( ruleset -- )
-    dup rule-set-finalized? {
+    dup finalized?>> {
         { f [
-            1 over set-rule-set-finalized?
-            dup resolve-imports
-            dup resolve-delegates
-            t swap set-rule-set-finalized?
+            {
+                [ 1 >>finalized? drop ]
+                [ resolve-imports ]
+                [ resolve-delegates ]
+                [ t >>finalized? drop ]
+            } cleave
         ] }
         { t [ drop ] }
-        { 1 [ "Mutually recursive rule sets" throw ] }
+        { 1 [ mutually-recursive-rulesets ] }
     } case ;
 
 : finalize-mode ( rulesets -- )
@@ -107,8 +110,8 @@ SYMBOL: rule-sets
     dup [ glob-matches? ] [ 2drop f ] if ;
 
 : suitable-mode? ( file-name first-line mode -- ? )
-    tuck mode-first-line-glob ?glob-matches
-    [ 2drop t ] [ mode-file-name-glob ?glob-matches ] if ;
+    tuck first-line-glob>> ?glob-matches
+    [ 2drop t ] [ file-name-glob>> ?glob-matches ] if ;
 
 : find-mode ( file-name first-line -- mode )
     modes
diff --git a/extra/x11/xim/authors.txt b/basis/xmode/code2html/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/x11/xim/authors.txt
rename to basis/xmode/code2html/authors.txt
diff --git a/extra/xmode/code2html/code2html.factor b/basis/xmode/code2html/code2html.factor
similarity index 90%
rename from extra/xmode/code2html/code2html.factor
rename to basis/xmode/code2html/code2html.factor
index 9167517bb2..032b2b25f0 100755
--- a/extra/xmode/code2html/code2html.factor
+++ b/basis/xmode/code2html/code2html.factor
@@ -6,7 +6,7 @@ IN: xmode.code2html
 : htmlize-tokens ( tokens -- )
     [
         [ str>> ] [ id>> ] bi [
-            <span word-name =class span> escape-string write </span>
+            <span name>> =class span> escape-string write </span>
         ] [
             escape-string write
         ] if*
@@ -20,7 +20,7 @@ IN: xmode.code2html
 
 : default-stylesheet ( -- )
     <style>
-        "resource:extra/xmode/code2html/stylesheet.css"
+        "resource:basis/xmode/code2html/stylesheet.css"
         utf8 file-contents escape-string write
     </style> ;
 
diff --git a/extra/xmode/code2html/responder/responder.factor b/basis/xmode/code2html/responder/responder.factor
similarity index 100%
rename from extra/xmode/code2html/responder/responder.factor
rename to basis/xmode/code2html/responder/responder.factor
diff --git a/extra/xmode/code2html/stylesheet.css b/basis/xmode/code2html/stylesheet.css
similarity index 100%
rename from extra/xmode/code2html/stylesheet.css
rename to basis/xmode/code2html/stylesheet.css
diff --git a/extra/xmode/authors.txt b/basis/xmode/keyword-map/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/xmode/authors.txt
rename to basis/xmode/keyword-map/authors.txt
diff --git a/extra/xmode/keyword-map/keyword-map-tests.factor b/basis/xmode/keyword-map/keyword-map-tests.factor
similarity index 100%
rename from extra/xmode/keyword-map/keyword-map-tests.factor
rename to basis/xmode/keyword-map/keyword-map-tests.factor
diff --git a/basis/xmode/keyword-map/keyword-map.factor b/basis/xmode/keyword-map/keyword-map.factor
new file mode 100644
index 0000000000..877eda44aa
--- /dev/null
+++ b/basis/xmode/keyword-map/keyword-map.factor
@@ -0,0 +1,43 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel strings assocs sequences hashtables
+sorting unicode.case unicode.categories sets ;
+IN: xmode.keyword-map
+
+! Based on org.gjt.sp.jedit.syntax.KeywordMap
+TUPLE: keyword-map no-word-sep ignore-case? assoc ;
+
+: <keyword-map> ( ignore-case? -- map )
+    keyword-map new
+        swap >>ignore-case?
+        H{ } clone >>assoc ;
+
+: invalid-no-word-sep ( keyword-map -- ) f >>no-word-sep drop ;
+
+: handle-case ( key keyword-map -- key assoc )
+    [ ignore-case?>> [ >upper ] when ] [ assoc>> ] bi ;
+
+M: keyword-map assoc-size
+    assoc>> assoc-size ;
+
+M: keyword-map at* handle-case at* ;
+
+M: keyword-map set-at
+    [ handle-case set-at ] [ invalid-no-word-sep ] bi ;
+
+M: keyword-map clear-assoc
+    [ assoc>> clear-assoc ] [ invalid-no-word-sep ] bi ;
+
+M: keyword-map >alist
+    assoc>> >alist ;
+
+: (keyword-map-no-word-sep) ( assoc -- str )
+    keys concat [ alpha? not ] filter prune natural-sort ;
+
+: keyword-map-no-word-sep* ( keyword-map -- str )
+    dup no-word-sep>> [ ] [
+        dup (keyword-map-no-word-sep) >>no-word-sep
+        keyword-map-no-word-sep*
+    ] ?if ;
+
+INSTANCE: keyword-map assoc
diff --git a/extra/xmode/catalog/authors.txt b/basis/xmode/loader/authors.txt
similarity index 100%
rename from extra/xmode/catalog/authors.txt
rename to basis/xmode/loader/authors.txt
diff --git a/extra/xmode/loader/loader.factor b/basis/xmode/loader/loader.factor
similarity index 68%
rename from extra/xmode/loader/loader.factor
rename to basis/xmode/loader/loader.factor
index 68b2c85a7d..28c0de406a 100755
--- a/extra/xmode/loader/loader.factor
+++ b/basis/xmode/loader/loader.factor
@@ -1,22 +1,22 @@
 USING: xmode.loader.syntax xmode.tokens xmode.rules
 xmode.keyword-map xml.data xml.utilities xml assocs kernel
 combinators sequences math.parser namespaces parser
-xmode.utilities regexp io.files ;
+xmode.utilities regexp io.files accessors ;
 IN: xmode.loader
 
 ! Based on org.gjt.sp.jedit.XModeHandler
 
 ! RULES and its children
-<TAGS: parse-rule-tag
+<TAGS: parse-rule-tag ( rule-set tag -- )
 
-TAG: PROPS ( rule-set tag -- )
-    parse-props-tag swap set-rule-set-props ;
+TAG: PROPS
+    parse-props-tag >>props drop ;
 
-TAG: IMPORT ( rule-set tag -- )
+TAG: IMPORT
     "DELEGATE" swap at swap import-rule-set ;
 
-TAG: TERMINATE ( rule-set tag -- )
-    "AT_CHAR" swap at string>number swap set-rule-set-terminate-char ;
+TAG: TERMINATE
+    "AT_CHAR" swap at string>number >>terminate-char drop ;
 
 RULE: SEQ seq-rule
     shared-tag-attrs delegate-attr literal-start ;
@@ -45,38 +45,39 @@ RULE: MARK_PREVIOUS mark-previous-rule
 TAG: KEYWORDS ( rule-set tag -- key value )
     ignore-case? get <keyword-map>
     swap child-tags [ over parse-keyword-tag ] each
-    swap set-rule-set-keywords ;
+    swap (>>keywords) ;
 
 TAGS>
 
-: ?<regexp> dup [ ignore-case? get <regexp> ] when ;
+: ?<regexp> ( string/f -- regexp/f )
+    dup [ ignore-case? get <regexp> ] when ;
 
 : (parse-rules-tag) ( tag -- rule-set )
     <rule-set>
     {
-        { "SET" string>rule-set-name set-rule-set-name }
-        { "IGNORE_CASE" string>boolean set-rule-set-ignore-case? }
-        { "HIGHLIGHT_DIGITS" string>boolean set-rule-set-highlight-digits? }
-        { "DIGIT_RE" ?<regexp> set-rule-set-digit-re }
+        { "SET" string>rule-set-name (>>name) }
+        { "IGNORE_CASE" string>boolean (>>ignore-case?) }
+        { "HIGHLIGHT_DIGITS" string>boolean (>>highlight-digits?) }
+        { "DIGIT_RE" ?<regexp> (>>digit-re) }
         { "ESCAPE" f add-escape-rule }
-        { "DEFAULT" string>token set-rule-set-default }
-        { "NO_WORD_SEP" f set-rule-set-no-word-sep }
+        { "DEFAULT" string>token (>>default) }
+        { "NO_WORD_SEP" f (>>no-word-sep) }
     } init-from-tag ;
 
 : parse-rules-tag ( tag -- rule-set )
     dup (parse-rules-tag) [
-        dup rule-set-ignore-case? ignore-case? [
+        dup ignore-case?>> ignore-case? [
             swap child-tags [ parse-rule-tag ] with each
         ] with-variable
     ] keep ;
 
 : merge-rule-set-props ( props rule-set -- )
-    [ rule-set-props assoc-union ] keep set-rule-set-props ;
+    [ assoc-union ] change-props drop ;
 
 ! Top-level entry points
 : parse-mode-tag ( tag -- rule-sets )
     dup "RULES" tags-named [
-        parse-rules-tag dup rule-set-name swap
+        parse-rules-tag dup name>> swap
     ] H{ } map>assoc
     swap "PROPS" tag-named [
         parse-props-tag over values
diff --git a/extra/xmode/code2html/authors.txt b/basis/xmode/loader/syntax/authors.txt
similarity index 100%
rename from extra/xmode/code2html/authors.txt
rename to basis/xmode/loader/syntax/authors.txt
diff --git a/extra/xmode/loader/syntax/syntax.factor b/basis/xmode/loader/syntax/syntax.factor
similarity index 53%
rename from extra/xmode/loader/syntax/syntax.factor
rename to basis/xmode/loader/syntax/syntax.factor
index c754db61c8..5512b68b04 100644
--- a/extra/xmode/loader/syntax/syntax.factor
+++ b/basis/xmode/loader/syntax/syntax.factor
@@ -1,13 +1,13 @@
-USING: xmode.tokens xmode.rules xmode.keyword-map xml.data
+USING: accessors xmode.tokens xmode.rules xmode.keyword-map xml.data
 xml.utilities xml assocs kernel combinators sequences
-math.parser namespaces parser xmode.utilities regexp io.files ;
+math.parser namespaces parser lexer xmode.utilities regexp io.files ;
 IN: xmode.loader.syntax
 
 SYMBOL: ignore-case?
 
 ! Rule tag parsing utilities
 : (parse-rule-tag) ( rule-set tag specs class -- )
-    construct-rule swap init-from-tag swap add-rule ; inline
+    new swap init-from-tag swap add-rule ; inline
 
 : RULE:
     scan scan-word
@@ -24,7 +24,7 @@ SYMBOL: ignore-case?
         [ string>token ]
     } case ;
 
-: string>rule-set-name "MAIN" or ;
+: string>rule-set-name ( string -- name ) "MAIN" or ;
 
 ! PROP, PROPS
 : parse-prop-tag ( tag -- key value )
@@ -48,54 +48,54 @@ SYMBOL: ignore-case?
     dup children>string ignore-case? get <regexp>
     swap position-attrs <matcher> ;
 
-: shared-tag-attrs
-    { "TYPE" string>token set-rule-body-token } , ; inline
+: shared-tag-attrs ( -- )
+    { "TYPE" string>token (>>body-token) } , ; inline
 
-: delegate-attr
-    { "DELEGATE" f set-rule-delegate } , ;
+: delegate-attr ( -- )
+    { "DELEGATE" f (>>delegate) } , ;
 
-: regexp-attr
-    { "HASH_CHAR" f set-rule-chars } , ;
+: regexp-attr ( -- )
+    { "HASH_CHAR" f (>>chars) } , ;
 
-: match-type-attr
-    { "MATCH_TYPE" string>match-type set-rule-match-token } , ;
+: match-type-attr ( -- )
+    { "MATCH_TYPE" string>match-type (>>match-token) } , ;
 
-: span-attrs
-    { "NO_LINE_BREAK" string>boolean set-rule-no-line-break? } ,
-    { "NO_WORD_BREAK" string>boolean set-rule-no-word-break? } ,
-    { "NO_ESCAPE" string>boolean set-rule-no-escape? } , ;
+: span-attrs ( -- )
+    { "NO_LINE_BREAK" string>boolean (>>no-line-break?) } ,
+    { "NO_WORD_BREAK" string>boolean (>>no-word-break?) } ,
+    { "NO_ESCAPE" string>boolean (>>no-escape?) } , ;
 
-: literal-start
-    [ parse-literal-matcher swap set-rule-start ] , ;
+: literal-start ( -- )
+    [ parse-literal-matcher >>start drop ] , ;
 
-: regexp-start
-    [ parse-regexp-matcher swap set-rule-start ] , ;
+: regexp-start ( -- )
+    [ parse-regexp-matcher >>start drop ] , ;
 
-: literal-end
-    [ parse-literal-matcher swap set-rule-end ] , ;
+: literal-end ( -- )
+    [ parse-literal-matcher >>end drop ] , ;
 
 ! SPAN's children
-<TAGS: parse-begin/end-tag
+<TAGS: parse-begin/end-tag ( rule tag -- )
 
 TAG: BEGIN
     ! XXX
-    parse-literal-matcher swap set-rule-start ;
+    parse-literal-matcher >>start drop ;
 
 TAG: END
     ! XXX
-    parse-literal-matcher swap set-rule-end ;
+    parse-literal-matcher >>end drop ;
 
 TAGS>
 
-: parse-begin/end-tags
+: parse-begin/end-tags ( -- )
     [
         ! XXX: handle position attrs on span tag itself
         child-tags [ parse-begin/end-tag ] with each
     ] , ;
 
-: init-span-tag [ drop init-span ] , ;
+: init-span-tag ( -- ) [ drop init-span ] , ;
 
-: init-eol-span-tag [ drop init-eol-span ] , ;
+: init-eol-span-tag ( -- ) [ drop init-eol-span ] , ;
 
 : parse-keyword-tag ( tag keyword-map -- )
-    >r dup name-tag string>token swap children>string r> set-at ;
+    >r dup main>> string>token swap children>string r> set-at ;
diff --git a/extra/xmode/keyword-map/authors.txt b/basis/xmode/marker/authors.txt
similarity index 100%
rename from extra/xmode/keyword-map/authors.txt
rename to basis/xmode/marker/authors.txt
diff --git a/extra/xmode/loader/authors.txt b/basis/xmode/marker/context/authors.txt
similarity index 100%
rename from extra/xmode/loader/authors.txt
rename to basis/xmode/marker/context/authors.txt
diff --git a/extra/xmode/marker/context/context.factor b/basis/xmode/marker/context/context.factor
similarity index 57%
rename from extra/xmode/marker/context/context.factor
rename to basis/xmode/marker/context/context.factor
index 72ac3f2a3f..da20503fcb 100644
--- a/extra/xmode/marker/context/context.factor
+++ b/basis/xmode/marker/context/context.factor
@@ -1,4 +1,4 @@
-USING: kernel ;
+USING: accessors kernel ;
 IN: xmode.marker.context
 
 ! Based on org.gjt.sp.jedit.syntax.TokenMarker.LineContext
@@ -11,10 +11,9 @@ end
 
 : <line-context> ( ruleset parent -- line-context )
     over [ "no context" throw ] unless
-    { set-line-context-in-rule-set set-line-context-parent }
-    line-context construct ;
+    line-context new
+        swap >>parent
+        swap >>in-rule-set ;
 
 M: line-context clone
-    (clone)
-    dup line-context-parent clone
-    over set-line-context-parent ;
+    call-next-method [ clone ] change-parent ;
diff --git a/extra/xmode/marker/marker-tests.factor b/basis/xmode/marker/marker-tests.factor
similarity index 100%
rename from extra/xmode/marker/marker-tests.factor
rename to basis/xmode/marker/marker-tests.factor
diff --git a/extra/xmode/marker/marker.factor b/basis/xmode/marker/marker.factor
similarity index 71%
rename from extra/xmode/marker/marker.factor
rename to basis/xmode/marker/marker.factor
index 91ccd43907..dfdd6c801a 100755
--- a/extra/xmode/marker/marker.factor
+++ b/basis/xmode/marker/marker.factor
@@ -1,8 +1,9 @@
 IN: xmode.marker
 USING: kernel namespaces xmode.rules xmode.tokens
 xmode.marker.state xmode.marker.context xmode.utilities
-xmode.catalog sequences math assocs combinators combinators.lib
-strings regexp splitting parser-combinators ascii unicode.case ;
+xmode.catalog sequences math assocs combinators
+strings regexp splitting parser-combinators ascii unicode.case
+combinators.short-circuit accessors ;
 
 ! Based on org.gjt.sp.jedit.syntax.TokenMarker
 
@@ -11,24 +12,24 @@ strings regexp splitting parser-combinators ascii unicode.case ;
 
 : keyword-number? ( keyword -- ? )
     {
-        [ current-rule-set rule-set-highlight-digits? ]
+        [ current-rule-set highlight-digits?>> ]
         [ dup [ digit? ] contains? ]
         [
             dup [ digit? ] all? [
-                current-rule-set rule-set-digit-re
+                current-rule-set digit-re>>
                 dup [ dupd matches? ] [ drop f ] if
             ] unless*
         ]
-    } && nip ;
+    } 0&& nip ;
 
 : mark-number ( keyword -- id )
     keyword-number? DIGIT and ;
 
 : mark-keyword ( keyword -- id )
-    current-rule-set rule-set-keywords at ;
+    current-rule-set keywords>> at ;
 
 : add-remaining-token ( -- )
-    current-rule-set rule-set-default prev-token, ;
+    current-rule-set default>> prev-token, ;
 
 : mark-token ( -- )
     current-keyword
@@ -47,10 +48,10 @@ M: rule match-position drop position get ;
 : can-match-here? ( matcher rule -- ? )
     match-position {
         [ over ]
-        [ over matcher-at-line-start?     over zero?                implies ]
-        [ over matcher-at-whitespace-end? over whitespace-end get = implies ]
-        [ over matcher-at-word-start?     over last-offset get =    implies ]
-    } && 2nip ;
+        [ over at-line-start?>>     over zero?                implies ]
+        [ over at-whitespace-end?>> over whitespace-end get = implies ]
+        [ over at-word-start?>>     over last-offset get =    implies ]
+    } 0&& 2nip ;
 
 : rest-of-line ( -- str )
     line get position get tail-slice ;
@@ -62,28 +63,26 @@ M: f text-matches?
 
 M: string-matcher text-matches?
     [
-        dup string-matcher-string
-        swap string-matcher-ignore-case?
-        string-head?
-    ] keep string-matcher-string length and ;
+        [ string>> ] [ ignore-case?>> ] bi string-head?
+    ] keep string>> length and ;
 
 M: regexp text-matches?
     >r >string r> match-head ;
 
 : rule-start-matches? ( rule -- match-count/f )
-    dup rule-start tuck swap can-match-here? [
-        rest-of-line swap matcher-text text-matches?
+    dup start>> tuck swap can-match-here? [
+        rest-of-line swap text>> text-matches?
     ] [
         drop f
     ] if ;
 
 : rule-end-matches? ( rule -- match-count/f )
     dup mark-following-rule? [
-        dup rule-start swap can-match-here? 0 and
+        dup start>> swap can-match-here? 0 and
     ] [
-        dup rule-end tuck swap can-match-here? [
+        dup end>> tuck swap can-match-here? [
             rest-of-line
-            swap matcher-text context get line-context-end or
+            swap text>> context get end>> or
             text-matches?
         ] [
             drop f
@@ -93,10 +92,10 @@ M: regexp text-matches?
 DEFER: get-rules
 
 : get-always-rules ( vector/f ruleset -- vector/f )
-    f swap rule-set-rules at ?push-all ;
+    f swap rules>> at ?push-all ;
 
 : get-char-rules ( vector/f char ruleset -- vector/f )
-    >r ch>upper r> rule-set-rules at ?push-all ;
+    >r ch>upper r> rules>> at ?push-all ;
 
 : get-rules ( char ruleset -- seq )
     f -rot [ get-char-rules ] keep get-always-rules ;
@@ -107,13 +106,13 @@ GENERIC: handle-rule-end ( match-count rule -- )
 
 : find-escape-rule ( -- rule )
     context get dup
-    line-context-in-rule-set rule-set-escape-rule [ ] [
-        line-context-parent line-context-in-rule-set
-        dup [ rule-set-escape-rule ] when
+    in-rule-set>> escape-rule>> [ ] [
+        parent>> in-rule-set>>
+        dup [ escape-rule>> ] when
     ] ?if ;
 
 : check-escape-rule ( rule -- ? )
-    rule-no-escape? [ f ] [
+    no-escape?>> [ f ] [
         find-escape-rule dup [
             dup rule-start-matches? dup [
                 swap handle-rule-start
@@ -137,9 +136,9 @@ GENERIC: handle-rule-end ( match-count rule -- )
     ] when* ;
 
 : rule-match-token* ( rule -- id )
-    dup rule-match-token {
-        { f [ dup rule-body-token ] }
-        { t [ current-rule-set rule-set-default ] }
+    dup match-token>> {
+        { f [ dup body-token>> ] }
+        { t [ current-rule-set default>> ] }
         [ ]
     } case nip ;
 
@@ -155,8 +154,8 @@ M: seq-rule handle-rule-start
     ?end-rule
     mark-token
     add-remaining-token
-    tuck rule-body-token next-token,
-    rule-delegate [ push-context ] when* ;
+    tuck body-token>> next-token,
+    delegate>> [ push-context ] when* ;
 
 UNION: abstract-span-rule span-rule eol-span-rule ;
 
@@ -166,8 +165,8 @@ M: abstract-span-rule handle-rule-start
     add-remaining-token
     tuck rule-match-token* next-token,
     ! ... end subst ...
-    dup context get set-line-context-in-rule
-    rule-delegate push-context ;
+    dup context get (>>in-rule)
+    delegate>> push-context ;
 
 M: span-rule handle-rule-end
     2drop ;
@@ -176,35 +175,36 @@ M: mark-following-rule handle-rule-start
     ?end-rule
     mark-token add-remaining-token
     tuck rule-match-token* next-token,
-    f context get set-line-context-end
-    context get set-line-context-in-rule ;
+    f context get (>>end)
+    context get (>>in-rule) ;
 
 M: mark-following-rule handle-rule-end
     nip rule-match-token* prev-token,
-    f context get set-line-context-in-rule ;
+    f context get (>>in-rule) ;
 
 M: mark-previous-rule handle-rule-start
     ?end-rule
     mark-token
-    dup rule-body-token prev-token,
+    dup body-token>> prev-token,
     rule-match-token* next-token, ;
 
-: do-escaped
+: do-escaped ( -- )
     escaped? get [
         escaped? off
         ! ...
     ] when ;
 
 : check-end-delegate ( -- ? )
-    context get line-context-parent [
-        line-context-in-rule [
+    context get parent>> [
+        in-rule>> [
             dup rule-end-matches? dup [
                 [
                     swap handle-rule-end
                     ?end-rule
                     mark-token
                     add-remaining-token
-                ] keep context get line-context-parent line-context-in-rule rule-match-token* next-token,
+                ] keep context get parent>> in-rule>>
+                rule-match-token* next-token,
                 pop-context
                 seen-whitespace-end? on t
             ] [ drop check-escape-rule ] if
@@ -212,9 +212,9 @@ M: mark-previous-rule handle-rule-start
     ] [ f ] if* ;
 
 : handle-no-word-break ( -- )
-    context get line-context-parent [
-        line-context-in-rule [
-            dup rule-no-word-break? [
+    context get parent>> [
+        in-rule>> [
+            dup no-word-break?>> [
                 rule-match-token* prev-token,
                 pop-context
             ] [ drop ] if
@@ -230,11 +230,11 @@ M: mark-previous-rule handle-rule-start
 : (check-word-break) ( -- )
     check-rule
     
-    1 current-rule-set rule-set-default next-token, ;
+    1 current-rule-set default>> next-token, ;
 
 : rule-set-empty? ( ruleset -- ? )
-    dup rule-set-rules assoc-empty?
-    swap rule-set-keywords assoc-empty? and ;
+    [ rules>> ] [ keywords>> ] bi
+    [ assoc-empty? ] bi@ and ;
 
 : check-word-break ( -- ? )
     current-char dup blank? [
@@ -273,7 +273,7 @@ M: mark-previous-rule handle-rule-start
             [ check-end-delegate ]
             [ check-every-rule ]
             [ check-word-break ]
-        } || drop
+        } 0|| drop
 
         position inc
         mark-token-loop
@@ -284,9 +284,9 @@ M: mark-previous-rule handle-rule-start
     check-rule ;
 
 : unwind-no-line-break ( -- )
-    context get line-context-parent [
-        line-context-in-rule [
-            rule-no-line-break? [
+    context get parent>> [
+        in-rule>> [
+            no-line-break?>> [
                 pop-context
                 unwind-no-line-break
             ] when
diff --git a/extra/xmode/loader/syntax/authors.txt b/basis/xmode/marker/state/authors.txt
similarity index 100%
rename from extra/xmode/loader/syntax/authors.txt
rename to basis/xmode/marker/state/authors.txt
diff --git a/extra/xmode/marker/state/state.factor b/basis/xmode/marker/state/state.factor
similarity index 78%
rename from extra/xmode/marker/state/state.factor
rename to basis/xmode/marker/state/state.factor
index 2cf12f301d..9075ff6329 100755
--- a/extra/xmode/marker/state/state.factor
+++ b/basis/xmode/marker/state/state.factor
@@ -1,4 +1,4 @@
-USING: xmode.marker.context xmode.rules symbols
+USING: xmode.marker.context xmode.rules symbols accessors
 xmode.tokens namespaces kernel sequences assocs math ;
 IN: xmode.marker.state
 
@@ -9,13 +9,13 @@ SYMBOLS: line last-offset position context
  escaped?  process-escape?  delegate-end-escaped? ;
 
 : current-rule ( -- rule )
-    context get line-context-in-rule ;
+    context get in-rule>> ;
 
 : current-rule-set ( -- rule )
-    context get line-context-in-rule-set ;
+    context get in-rule-set>> ;
 
 : current-keywords ( -- keyword-map )
-    current-rule-set rule-set-keywords ;
+    current-rule-set keywords>> ;
 
 : token, ( from to id -- )
     2over = [ 3drop ] [ >r line get subseq r> <token> , ] if ;
@@ -32,9 +32,8 @@ SYMBOLS: line last-offset position context
     context [ <line-context> ] change ;
 
 : pop-context ( -- )
-    context get line-context-parent
-    dup context set
-    f swap set-line-context-in-rule ;
+    context get parent>>
+    f >>in-rule context set ;
 
 : init-token-marker ( main prev-context line -- )
     line set
diff --git a/extra/xmode/modes/actionscript.xml b/basis/xmode/modes/actionscript.xml
similarity index 100%
rename from extra/xmode/modes/actionscript.xml
rename to basis/xmode/modes/actionscript.xml
diff --git a/extra/xmode/modes/ada95.xml b/basis/xmode/modes/ada95.xml
similarity index 100%
rename from extra/xmode/modes/ada95.xml
rename to basis/xmode/modes/ada95.xml
diff --git a/extra/xmode/modes/antlr.xml b/basis/xmode/modes/antlr.xml
similarity index 100%
rename from extra/xmode/modes/antlr.xml
rename to basis/xmode/modes/antlr.xml
diff --git a/extra/xmode/modes/apacheconf.xml b/basis/xmode/modes/apacheconf.xml
similarity index 100%
rename from extra/xmode/modes/apacheconf.xml
rename to basis/xmode/modes/apacheconf.xml
diff --git a/extra/xmode/modes/apdl.xml b/basis/xmode/modes/apdl.xml
similarity index 100%
rename from extra/xmode/modes/apdl.xml
rename to basis/xmode/modes/apdl.xml
diff --git a/extra/xmode/modes/applescript.xml b/basis/xmode/modes/applescript.xml
similarity index 100%
rename from extra/xmode/modes/applescript.xml
rename to basis/xmode/modes/applescript.xml
diff --git a/extra/xmode/modes/asp.xml b/basis/xmode/modes/asp.xml
similarity index 100%
rename from extra/xmode/modes/asp.xml
rename to basis/xmode/modes/asp.xml
diff --git a/extra/xmode/modes/aspect-j.xml b/basis/xmode/modes/aspect-j.xml
similarity index 100%
rename from extra/xmode/modes/aspect-j.xml
rename to basis/xmode/modes/aspect-j.xml
diff --git a/extra/xmode/modes/assembly-m68k.xml b/basis/xmode/modes/assembly-m68k.xml
similarity index 100%
rename from extra/xmode/modes/assembly-m68k.xml
rename to basis/xmode/modes/assembly-m68k.xml
diff --git a/extra/xmode/modes/assembly-macro32.xml b/basis/xmode/modes/assembly-macro32.xml
similarity index 100%
rename from extra/xmode/modes/assembly-macro32.xml
rename to basis/xmode/modes/assembly-macro32.xml
diff --git a/extra/xmode/modes/assembly-mcs51.xml b/basis/xmode/modes/assembly-mcs51.xml
similarity index 100%
rename from extra/xmode/modes/assembly-mcs51.xml
rename to basis/xmode/modes/assembly-mcs51.xml
diff --git a/extra/xmode/modes/assembly-parrot.xml b/basis/xmode/modes/assembly-parrot.xml
similarity index 100%
rename from extra/xmode/modes/assembly-parrot.xml
rename to basis/xmode/modes/assembly-parrot.xml
diff --git a/extra/xmode/modes/assembly-r2000.xml b/basis/xmode/modes/assembly-r2000.xml
similarity index 100%
rename from extra/xmode/modes/assembly-r2000.xml
rename to basis/xmode/modes/assembly-r2000.xml
diff --git a/extra/xmode/modes/assembly-x86.xml b/basis/xmode/modes/assembly-x86.xml
similarity index 100%
rename from extra/xmode/modes/assembly-x86.xml
rename to basis/xmode/modes/assembly-x86.xml
diff --git a/extra/xmode/modes/awk.xml b/basis/xmode/modes/awk.xml
similarity index 100%
rename from extra/xmode/modes/awk.xml
rename to basis/xmode/modes/awk.xml
diff --git a/extra/xmode/modes/b.xml b/basis/xmode/modes/b.xml
similarity index 100%
rename from extra/xmode/modes/b.xml
rename to basis/xmode/modes/b.xml
diff --git a/extra/xmode/modes/batch.xml b/basis/xmode/modes/batch.xml
similarity index 100%
rename from extra/xmode/modes/batch.xml
rename to basis/xmode/modes/batch.xml
diff --git a/extra/xmode/modes/bbj.xml b/basis/xmode/modes/bbj.xml
similarity index 100%
rename from extra/xmode/modes/bbj.xml
rename to basis/xmode/modes/bbj.xml
diff --git a/extra/xmode/modes/bcel.xml b/basis/xmode/modes/bcel.xml
similarity index 100%
rename from extra/xmode/modes/bcel.xml
rename to basis/xmode/modes/bcel.xml
diff --git a/extra/xmode/modes/bibtex.xml b/basis/xmode/modes/bibtex.xml
similarity index 100%
rename from extra/xmode/modes/bibtex.xml
rename to basis/xmode/modes/bibtex.xml
diff --git a/extra/xmode/modes/c.xml b/basis/xmode/modes/c.xml
similarity index 100%
rename from extra/xmode/modes/c.xml
rename to basis/xmode/modes/c.xml
diff --git a/extra/xmode/modes/catalog b/basis/xmode/modes/catalog
similarity index 100%
rename from extra/xmode/modes/catalog
rename to basis/xmode/modes/catalog
diff --git a/extra/xmode/modes/chill.xml b/basis/xmode/modes/chill.xml
similarity index 100%
rename from extra/xmode/modes/chill.xml
rename to basis/xmode/modes/chill.xml
diff --git a/extra/xmode/modes/cil.xml b/basis/xmode/modes/cil.xml
similarity index 100%
rename from extra/xmode/modes/cil.xml
rename to basis/xmode/modes/cil.xml
diff --git a/extra/xmode/modes/clips.xml b/basis/xmode/modes/clips.xml
similarity index 100%
rename from extra/xmode/modes/clips.xml
rename to basis/xmode/modes/clips.xml
diff --git a/extra/xmode/modes/cobol.xml b/basis/xmode/modes/cobol.xml
similarity index 100%
rename from extra/xmode/modes/cobol.xml
rename to basis/xmode/modes/cobol.xml
diff --git a/extra/xmode/modes/coldfusion.xml b/basis/xmode/modes/coldfusion.xml
similarity index 100%
rename from extra/xmode/modes/coldfusion.xml
rename to basis/xmode/modes/coldfusion.xml
diff --git a/extra/xmode/modes/cplusplus.xml b/basis/xmode/modes/cplusplus.xml
similarity index 100%
rename from extra/xmode/modes/cplusplus.xml
rename to basis/xmode/modes/cplusplus.xml
diff --git a/extra/xmode/modes/csharp.xml b/basis/xmode/modes/csharp.xml
similarity index 100%
rename from extra/xmode/modes/csharp.xml
rename to basis/xmode/modes/csharp.xml
diff --git a/extra/xmode/modes/css.xml b/basis/xmode/modes/css.xml
similarity index 100%
rename from extra/xmode/modes/css.xml
rename to basis/xmode/modes/css.xml
diff --git a/extra/xmode/modes/csv.xml b/basis/xmode/modes/csv.xml
similarity index 100%
rename from extra/xmode/modes/csv.xml
rename to basis/xmode/modes/csv.xml
diff --git a/extra/xmode/modes/cvs-commit.xml b/basis/xmode/modes/cvs-commit.xml
similarity index 100%
rename from extra/xmode/modes/cvs-commit.xml
rename to basis/xmode/modes/cvs-commit.xml
diff --git a/extra/xmode/modes/d.xml b/basis/xmode/modes/d.xml
similarity index 100%
rename from extra/xmode/modes/d.xml
rename to basis/xmode/modes/d.xml
diff --git a/extra/xmode/modes/django.xml b/basis/xmode/modes/django.xml
similarity index 100%
rename from extra/xmode/modes/django.xml
rename to basis/xmode/modes/django.xml
diff --git a/extra/xmode/modes/doxygen.xml b/basis/xmode/modes/doxygen.xml
similarity index 100%
rename from extra/xmode/modes/doxygen.xml
rename to basis/xmode/modes/doxygen.xml
diff --git a/extra/xmode/modes/dsssl.xml b/basis/xmode/modes/dsssl.xml
similarity index 100%
rename from extra/xmode/modes/dsssl.xml
rename to basis/xmode/modes/dsssl.xml
diff --git a/extra/xmode/modes/eiffel.xml b/basis/xmode/modes/eiffel.xml
similarity index 100%
rename from extra/xmode/modes/eiffel.xml
rename to basis/xmode/modes/eiffel.xml
diff --git a/extra/xmode/modes/embperl.xml b/basis/xmode/modes/embperl.xml
similarity index 100%
rename from extra/xmode/modes/embperl.xml
rename to basis/xmode/modes/embperl.xml
diff --git a/extra/xmode/modes/erlang.xml b/basis/xmode/modes/erlang.xml
similarity index 100%
rename from extra/xmode/modes/erlang.xml
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rename from extra/xmode/modes/xq.xml
rename to basis/xmode/modes/xq.xml
diff --git a/extra/xmode/modes/xsl.xml b/basis/xmode/modes/xsl.xml
similarity index 100%
rename from extra/xmode/modes/xsl.xml
rename to basis/xmode/modes/xsl.xml
diff --git a/extra/xmode/modes/zpt.xml b/basis/xmode/modes/zpt.xml
similarity index 100%
rename from extra/xmode/modes/zpt.xml
rename to basis/xmode/modes/zpt.xml
diff --git a/extra/xmode/marker/authors.txt b/basis/xmode/rules/authors.txt
similarity index 100%
rename from extra/xmode/marker/authors.txt
rename to basis/xmode/rules/authors.txt
diff --git a/extra/xmode/rules/rules-tests.factor b/basis/xmode/rules/rules-tests.factor
similarity index 100%
rename from extra/xmode/rules/rules-tests.factor
rename to basis/xmode/rules/rules-tests.factor
diff --git a/extra/xmode/rules/rules.factor b/basis/xmode/rules/rules.factor
similarity index 55%
rename from extra/xmode/rules/rules.factor
rename to basis/xmode/rules/rules.factor
index df5580fc68..e3c0c65db0 100755
--- a/extra/xmode/rules/rules.factor
+++ b/basis/xmode/rules/rules.factor
@@ -1,4 +1,4 @@
-USING: xmode.tokens xmode.keyword-map kernel
+USING: accessors xmode.tokens xmode.keyword-map kernel
 sequences vectors assocs strings memoize regexp unicode.case ;
 IN: xmode.rules
 
@@ -23,26 +23,20 @@ no-word-sep
 finalized?
 ;
 
-: init-rule-set ( ruleset -- )
-    #! Call after constructor.
-    >r H{ } clone H{ } clone V{ } clone r>
-    {
-        set-rule-set-rules
-        set-rule-set-props
-        set-rule-set-imports
-    } set-slots ;
-
 : <rule-set> ( -- ruleset )
-    rule-set new dup init-rule-set ;
+    rule-set new
+        H{ } clone >>rules
+        H{ } clone >>props
+        V{ } clone >>imports ;
 
 MEMO: standard-rule-set ( id -- ruleset )
-    <rule-set> [ set-rule-set-default ] keep ;
+    <rule-set> swap >>default ;
 
 : import-rule-set ( import ruleset -- )
-    rule-set-imports push ;
+    imports>> push ;
 
 : inverted-index ( hashes key index -- )
-    [ swapd [ ?push ] change-at ] 2curry each ;
+    [ swapd push-at ] 2curry each ;
 
 : ?push-all ( seq1 seq2 -- seq1+seq2 )
     [
@@ -50,8 +44,9 @@ MEMO: standard-rule-set ( id -- ruleset )
     ] when* ;
 
 : rule-set-no-word-sep* ( ruleset -- str )
-    dup rule-set-no-word-sep
-    swap rule-set-keywords dup [ keyword-map-no-word-sep* ] when
+    [ no-word-sep>> ]
+    [ keywords>> ] bi
+    dup [ keyword-map-no-word-sep* ] when
     "_" 3append ;
 
 ! Match restrictions
@@ -72,57 +67,52 @@ delegate
 chars
 ;
 
-: construct-rule ( class -- rule )
-    >r rule new r> construct-delegate ; inline
+TUPLE: seq-rule < rule ;
 
-TUPLE: seq-rule ;
+TUPLE: span-rule < rule ;
 
-TUPLE: span-rule ;
-
-TUPLE: eol-span-rule ;
+TUPLE: eol-span-rule < rule ;
 
 : init-span ( rule -- )
-    dup rule-delegate [ drop ] [
-        dup rule-body-token standard-rule-set
-        swap set-rule-delegate
+    dup delegate>> [ drop ] [
+        dup body-token>> standard-rule-set
+        swap (>>delegate)
     ] if ;
 
 : init-eol-span ( rule -- )
     dup init-span
-    t swap set-rule-no-line-break? ;
+    t >>no-line-break? drop ;
 
-TUPLE: mark-following-rule ;
+TUPLE: mark-following-rule < rule ;
 
-TUPLE: mark-previous-rule ;
+TUPLE: mark-previous-rule < rule ;
 
-TUPLE: escape-rule ;
+TUPLE: escape-rule < rule ;
 
 : <escape-rule> ( string -- rule )
     f <string-matcher> f f f <matcher>
-    escape-rule construct-rule
-    [ set-rule-start ] keep ;
+    escape-rule new swap >>start ;
 
 GENERIC: text-hash-char ( text -- ch )
 
 M: f text-hash-char ;
 
-M: string-matcher text-hash-char string-matcher-string first ;
+M: string-matcher text-hash-char string>> first ;
 
 M: regexp text-hash-char drop f ;
 
 : rule-chars* ( rule -- string )
-    dup rule-chars
-    swap rule-start matcher-text
+    [ chars>> ] [ start>> ] bi text>>
     text-hash-char [ suffix ] when* ;
 
 : add-rule ( rule ruleset -- )
     >r dup rule-chars* >upper swap
-    r> rule-set-rules inverted-index ;
+    r> rules>> inverted-index ;
 
 : add-escape-rule ( string ruleset -- )
     over [
-        >r <escape-rule> r>
-        2dup set-rule-set-escape-rule
+        [ <escape-rule> ] dip
+        2dup (>>escape-rule)
         add-rule
     ] [
         2drop
diff --git a/extra/xmode/summary.txt b/basis/xmode/summary.txt
similarity index 100%
rename from extra/xmode/summary.txt
rename to basis/xmode/summary.txt
diff --git a/extra/xmode/marker/context/authors.txt b/basis/xmode/tokens/authors.txt
similarity index 100%
rename from extra/xmode/marker/context/authors.txt
rename to basis/xmode/tokens/authors.txt
diff --git a/extra/xmode/tokens/tokens.factor b/basis/xmode/tokens/tokens.factor
similarity index 84%
rename from extra/xmode/tokens/tokens.factor
rename to basis/xmode/tokens/tokens.factor
index 018164dfcf..b8917529d6 100755
--- a/extra/xmode/tokens/tokens.factor
+++ b/basis/xmode/tokens/tokens.factor
@@ -1,4 +1,4 @@
-USING: parser words sequences namespaces kernel assocs
+USING: accessors parser words sequences namespaces kernel assocs
 compiler.units ;
 IN: xmode.tokens
 
@@ -8,7 +8,7 @@ SYMBOL: tokens
 
 { "COMMENT1" "COMMENT2" "COMMENT3" "COMMENT4" "DIGIT" "FUNCTION" "INVALID" "KEYWORD1" "KEYWORD2" "KEYWORD3" "KEYWORD4" "LABEL" "LITERAL1" "LITERAL2" "LITERAL3" "LITERAL4" "MARKUP" "OPERATOR" "END" "NULL" } [
     create-in dup define-symbol
-    dup word-name swap
+    dup name>> swap
 ] H{ } map>assoc tokens set-global
 >>
 
diff --git a/extra/xmode/marker/state/authors.txt b/basis/xmode/utilities/authors.txt
similarity index 100%
rename from extra/xmode/marker/state/authors.txt
rename to basis/xmode/utilities/authors.txt
diff --git a/extra/xmode/utilities/test.xml b/basis/xmode/utilities/test.xml
similarity index 100%
rename from extra/xmode/utilities/test.xml
rename to basis/xmode/utilities/test.xml
diff --git a/extra/xmode/utilities/utilities-tests.factor b/basis/xmode/utilities/utilities-tests.factor
similarity index 65%
rename from extra/xmode/utilities/utilities-tests.factor
rename to basis/xmode/utilities/utilities-tests.factor
index a2183edbc9..45238ca2b1 100755
--- a/extra/xmode/utilities/utilities-tests.factor
+++ b/basis/xmode/utilities/utilities-tests.factor
@@ -1,7 +1,7 @@
 IN: xmode.utilities.tests
-USING: xmode.utilities tools.test xml xml.data kernel strings
-vectors sequences io.files prettyprint assocs unicode.case ;
-
+USING: accessors xmode.utilities tools.test xml xml.data kernel
+strings vectors sequences io.files prettyprint assocs
+unicode.case ;
 [ "hi" 3 ] [
     { 1 2 3 4 5 6 7 8 } [ H{ { 3 "hi" } } at ] map-find
 ] unit-test
@@ -14,7 +14,7 @@ TUPLE: company employees type ;
 
 : <company> V{ } clone f company boa ;
 
-: add-employee company-employees push ;
+: add-employee employees>> push ;
 
 <TAGS: parse-employee-tag
 
@@ -22,7 +22,7 @@ TUPLE: employee name description ;
 
 TAG: employee
     employee new
-    { { "name" f set-employee-name } { f set-employee-description } }
+    { { "name" f (>>name) } { f (>>description) } }
     init-from-tag swap add-employee ;
 
 TAGS>
@@ -32,10 +32,10 @@ TAGS>
 : parse-company-tag
     [
         <company>
-        { { "type" >upper set-company-type } }
+        { { "type" >upper (>>type) } }
         init-from-tag dup
     ] keep
-    tag-children [ tag? ] filter
+    children>> [ tag? ] filter
     [ parse-employee-tag ] with each ;
 
 [
@@ -45,9 +45,8 @@ TAGS>
             T{ employee f "Jane" "CFO" }
         }
         "PUBLIC"
-        "This is a great company"
     }
 ] [
-    "resource:extra/xmode/utilities/test.xml"
+    "resource:basis/xmode/utilities/test.xml"
     file>xml parse-company-tag
 ] unit-test
diff --git a/extra/xmode/utilities/utilities.factor b/basis/xmode/utilities/utilities.factor
similarity index 80%
rename from extra/xmode/utilities/utilities.factor
rename to basis/xmode/utilities/utilities.factor
index db59465b7b..8f1a6184e8 100644
--- a/extra/xmode/utilities/utilities.factor
+++ b/basis/xmode/utilities/utilities.factor
@@ -1,10 +1,10 @@
-USING: sequences assocs kernel quotations namespaces xml.data
-xml.utilities combinators macros parser words ;
+USING: accessors sequences assocs kernel quotations namespaces
+xml.data xml.utilities combinators macros parser lexer words ;
 IN: xmode.utilities
 
 : implies >r not r> or ; inline
 
-: child-tags ( tag -- seq ) tag-children [ tag? ] filter ;
+: child-tags ( tag -- seq ) children>> [ tag? ] filter ;
 
 : map-find ( seq quot -- result elt )
     f -rot
@@ -45,14 +45,13 @@ SYMBOL: tag-handler-word
     CREATE tag-handler-word set
     H{ } clone tag-handlers set ; parsing
 
-: (TAG:) swap tag-handlers get set-at ;
+: (TAG:) ( name quot -- ) swap tag-handlers get set-at ;
 
 : TAG:
-    f set-word
     scan parse-definition
     (TAG:) ; parsing
 
 : TAGS>
     tag-handler-word get
-    tag-handlers get >alist [ >r dup name-tag r> case ] curry
+    tag-handlers get >alist [ >r dup main>> r> case ] curry
     define ; parsing
diff --git a/extra/xmode/xmode.dtd b/basis/xmode/xmode.dtd
similarity index 100%
rename from extra/xmode/xmode.dtd
rename to basis/xmode/xmode.dtd
diff --git a/core/alien/alien-docs.factor b/core/alien/alien-docs.factor
index 0caf0e9a9f..814ca8613e 100755
--- a/core/alien/alien-docs.factor
+++ b/core/alien/alien-docs.factor
@@ -1,7 +1,7 @@
 USING: byte-arrays arrays help.syntax help.markup
 alien.syntax compiler definitions math libc
-debugger parser io io.backend system bit-arrays float-arrays
-alien.accessors ;
+debugger parser io io.backend system
+alien.accessors eval ;
 IN: alien
 
 HELP: alien
@@ -10,14 +10,30 @@ HELP: alien
 HELP: dll
 { $class-description "The class of native library handles. See " { $link "syntax-aliens" } " for syntax and " { $link "dll.private" } " for general information." } ;
 
-HELP: expired? ( c-ptr -- ? )
-{ $values { "c-ptr" "an alien, byte array, or " { $link f } } { "?" "a boolean" } }
-{ $description "Tests if the alien is a relic from an earlier session. When an image is loaded, any alien objects which persisted in the image are marked as being expired."
-$nl
-"A byte array is never considered to be expired, whereas passing " { $link f } " always yields true." } ;
+HELP: dll-valid? ( dll -- ? )
+{ $values { "dll" dll } { "?" "a boolean" } }
+{ $description "Returns true if the library exists and is loaded." } ;
+
+HELP: expired?
+{ $values { "c-ptr" c-ptr } { "?" "a boolean" } }
+{ $description "Tests if the alien is a relic from an earlier session. A byte array is never considered to have expired, whereas passing " { $link f } " always yields true." } ;
+
+HELP: <bad-alien>
+{ $values  { "alien" c-ptr } }
+{ $description "Constructs an invalid alien pointer that has expired." } ;
+
+HELP: <library>
+{ $values
+     { "path" "a pathname string" } { "abi" "the ABI used by the library, either " { $snippet "cdecl" } " or " { $snippet "stdcall" } }
+     { "library" library } }
+{ $description "Opens a C library using the path and ABI parameters and outputs a library tuple." }
+{ $notes "User code should use " { $link add-library } " so that the opened library is added to a global hashtable, " { $link libraries } "." } ;
+
+HELP: libraries
+{ $description "A global hashtable that keeps a list of open libraries. Use the " { $link add-library } " word to construct a library and add it with a single call." } ;
 
 HELP: <displaced-alien> ( displacement c-ptr -- alien )
-{ $values { "displacement" "an integer" } { "c-ptr" "an alien, byte array, or " { $link f } } { "alien" "a new alien" } }
+{ $values { "displacement" "an integer" } { "c-ptr" c-ptr } { "alien" "a new alien" } }
 { $description "Creates a new alien address object, wrapping a raw memory address. The alien points to a location in memory which is offset by " { $snippet "displacement" } " from the address of " { $snippet "c-ptr" } "." }
 { $notes "Passing a value of " { $link f } " for " { $snippet "c-ptr" } " creates an alien with an absolute address; this is how " { $link <alien> } " is implemented."
 $nl
@@ -26,7 +42,7 @@ $nl
 { <alien> <displaced-alien> alien-address } related-words
 
 HELP: alien-address ( c-ptr -- addr )
-{ $values { "c-ptr" "an alien or " { $link f } } { "addr" "a non-negative integer" } }
+{ $values { "c-ptr" c-ptr } { "addr" "a non-negative integer" } }
 { $description "Outputs the address of an alien." }
 { $notes "Taking the address of a " { $link byte-array } " is explicitly prohibited since byte arrays can be moved by the garbage collector between the time the address is taken, and when it is accessed. If you need to pass pointers to C functions which will persist across alien calls, you must allocate unmanaged memory instead. See " { $link "malloc" } "." } ;
 
@@ -126,7 +142,7 @@ HELP: alien-callback-error
 } ;
 
 HELP: alien-callback
-{ $values { "return" "a C return type" } { "parameters" "a sequence of C parameter types" } { "abi" "one of " { $snippet "\"cdecl\"" } " or " { $snippet "\"stdcall\"" } } { "quot" "a quotation" } { "alien" c-ptr } }
+{ $values { "return" "a C return type" } { "parameters" "a sequence of C parameter types" } { "abi" "one of " { $snippet "\"cdecl\"" } " or " { $snippet "\"stdcall\"" } } { "quot" "a quotation" } { "alien" alien } }
 { $description
     "Defines a callback from C to Factor which accepts the given set of parameters from the C caller, pushes them on the data stack, calls the quotation, and passes a return value back to the C caller. A return type of " { $snippet "\"void\"" } " indicates that no value is to be returned."
     $nl
@@ -146,15 +162,25 @@ HELP: alien-callback
 
 { alien-invoke alien-indirect alien-callback } related-words
 
+ARTICLE: "alien-expiry" "Alien expiry"
+"When an image is loaded, any alien objects which persisted from the previous session are marked as having expired. This is because the C pointers they contain are almost certainly no longer valid."
+$nl
+"For this reason, the " { $link POSTPONE: ALIEN: } " word should not be used in source files, since loading the source file then saving the image will result in the literal becoming expired. Use " { $link <alien> } " instead, and ensure the word calling " { $link <alien> } " is not declared " { $link POSTPONE: flushable } "."
+{ $subsection expired? } ;
+
 ARTICLE: "aliens" "Alien addresses"
 "Instances of the " { $link alien } " class represent pointers to C data outside the Factor heap:"
 { $subsection <alien> }
 { $subsection <displaced-alien> }
 { $subsection alien-address }
-{ $subsection expired? }
 "Anywhere that a " { $link alien } " instance is accepted, the " { $link f } " singleton may be passed in to denote a null pointer."
 $nl
-"Usually alien objects do not have to created and dereferenced directly; instead declaring C function parameters and return values as having a pointer type such as " { $snippet "void*" } " takes care of the details. See " { $link "c-types-specs" } "." ;
+"Usually alien objects do not have to created and dereferenced directly; instead declaring C function parameters and return values as having a pointer type such as " { $snippet "void*" } " takes care of the details."
+{ $subsection "syntax-aliens" }
+{ $subsection "alien-expiry" }
+"When higher-level abstractions won't do:"
+{ $subsection "reading-writing-memory" }
+{ $see-also "c-data" "c-types-specs" } ;
 
 ARTICLE: "reading-writing-memory" "Reading and writing memory directly"
 "Numerical values can be read from memory addresses and converted to Factor objects using the various typed memory accessor words:"
@@ -220,7 +246,8 @@ $nl
 "Usually one never has to deal with DLL handles directly; the C library interface creates them as required. However if direct access to these operating system facilities is required, the following primitives can be used:"
 { $subsection dlopen }
 { $subsection dlsym }
-{ $subsection dlclose } ;
+{ $subsection dlclose }
+{ $subsection dll-valid? } ;
 
 ARTICLE: "embedding-api" "Factor embedding API"
 "The Factor embedding API is defined in " { $snippet "vm/master.h" } "."
@@ -293,6 +320,7 @@ $nl
 "C library interface words are found in the " { $vocab-link "alien" } " vocabulary."
 { $warning "C does not perform runtime type checking, automatic memory management or array bounds checks. Incorrect usage of C library functions can lead to crashes, data corruption, and security exploits." }
 { $subsection "loading-libs" }
+{ $subsection "aliens" }
 { $subsection "alien-invoke" }
 { $subsection "alien-callback" }
 { $subsection "c-data" }
diff --git a/core/alien/alien-tests.factor b/core/alien/alien-tests.factor
index 28a1e98710..5a880fa5a9 100755
--- a/core/alien/alien-tests.factor
+++ b/core/alien/alien-tests.factor
@@ -1,5 +1,5 @@
 IN: alien.tests
-USING: alien alien.accessors alien.syntax byte-arrays arrays
+USING: accessors alien alien.accessors alien.syntax byte-arrays arrays
 kernel kernel.private namespaces tools.test sequences libc math
 system prettyprint layouts ;
 
@@ -58,8 +58,6 @@ cell 8 = [
 [ "ALIEN: 1234" ] [ 1234 <alien> unparse ] unit-test
 
 [ ] [ 0 B{ 1 2 3 } <displaced-alien> drop ] unit-test
-[ ] [ 0 F{ 1 2 3 } <displaced-alien> drop ] unit-test
-[ ] [ 0 ?{ t f t } <displaced-alien> drop ] unit-test
 
 [ 0 B{ 1 2 3 } <displaced-alien> alien-address ] must-fail
 
@@ -67,6 +65,10 @@ cell 8 = [
 
 [ f ] [ 0 B{ 1 2 3 } <displaced-alien> pinned-c-ptr? ] unit-test
 
+[ f ] [ 0 B{ 1 2 3 } <displaced-alien> 1 swap <displaced-alien> pinned-c-ptr? ] unit-test
+
+[ t ] [ 0 B{ 1 2 3 } <displaced-alien> 1 swap <displaced-alien> underlying>> byte-array? ] unit-test
+
 [ "( displaced alien )" ] [ 0 B{ 1 2 3 } <displaced-alien> unparse ] unit-test
 
 [ f ] [ DLL" fadfasdfsada" dll-valid? ] unit-test
diff --git a/core/alien/alien.factor b/core/alien/alien.factor
index cc37b85103..6a5dfe30df 100755
--- a/core/alien/alien.factor
+++ b/core/alien/alien.factor
@@ -1,33 +1,35 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: assocs kernel math namespaces sequences system
-kernel.private bit-arrays byte-arrays float-arrays arrays ;
+USING: accessors assocs kernel math namespaces sequences system
+kernel.private byte-arrays arrays ;
 IN: alien
 
 ! Some predicate classes used by the compiler for optimization
 ! purposes
-PREDICATE: simple-alien < alien
-    underlying-alien not ;
+PREDICATE: simple-alien < alien underlying>> not ;
 
 UNION: simple-c-ptr
-simple-alien POSTPONE: f byte-array bit-array float-array ;
-
-UNION: c-ptr
-alien POSTPONE: f byte-array bit-array float-array ;
+simple-alien POSTPONE: f byte-array ;
 
 DEFER: pinned-c-ptr?
 
-PREDICATE: pinned-alien < alien
-    underlying-alien pinned-c-ptr? ;
+PREDICATE: pinned-alien < alien underlying>> pinned-c-ptr? ;
 
 UNION: pinned-c-ptr
     pinned-alien POSTPONE: f ;
 
+GENERIC: expired? ( c-ptr -- ? ) flushable
+
+M: alien expired? expired>> ;
+
 M: f expired? drop t ;
 
 : <alien> ( address -- alien )
     f <displaced-alien> { simple-c-ptr } declare ; inline
 
+: <bad-alien> ( -- alien )
+    -1 <alien> t >>expired ; inline
+
 M: alien equal?
     over alien? [
         2dup [ expired? ] either? [
@@ -51,7 +53,7 @@ TUPLE: library path abi dll ;
     over dup [ dlopen ] when \ library boa ;
 
 : load-library ( name -- dll )
-    library dup [ library-dll ] when ;
+    library dup [ dll>> ] when ;
 
 : add-library ( name path abi -- )
     <library> swap libraries get set-at ;
diff --git a/core/alien/compiler/compiler.factor b/core/alien/compiler/compiler.factor
deleted file mode 100755
index 67665b4d7e..0000000000
--- a/core/alien/compiler/compiler.factor
+++ /dev/null
@@ -1,432 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generator generator.registers generator.fixup
-hashtables kernel math namespaces sequences words
-inference.state inference.backend inference.dataflow system
-math.parser classes alien.arrays alien.c-types alien.strings
-alien.structs alien.syntax cpu.architecture alien inspector
-quotations assocs kernel.private threads continuations.private
-libc combinators compiler.errors continuations layouts accessors
-init ;
-IN: alien.compiler
-
-TUPLE: #alien-node < node return parameters abi ;
-
-TUPLE: #alien-callback < #alien-node quot xt ;
-
-TUPLE: #alien-indirect < #alien-node ;
-
-TUPLE: #alien-invoke < #alien-node library function ;
-
-: large-struct? ( ctype -- ? )
-    dup c-struct? [
-        heap-size struct-small-enough? not
-    ] [ drop f ] if ;
-
-: alien-node-parameters* ( node -- seq )
-    dup parameters>>
-    swap return>> large-struct? [ "void*" prefix ] when ;
-
-: alien-node-return* ( node -- ctype )
-    return>> dup large-struct? [ drop "void" ] when ;
-
-: c-type-stack-align ( type -- align )
-    dup c-type-stack-align? [ c-type-align ] [ drop cell ] if ;
-
-: parameter-align ( n type -- n delta )
-    over >r c-type-stack-align align dup r> - ;
-
-: parameter-sizes ( types -- total offsets )
-    #! Compute stack frame locations.
-    [
-        0 [
-            [ parameter-align drop dup , ] keep stack-size +
-        ] reduce cell align
-    ] { } make ;
-
-: return-size ( ctype -- n )
-    #! Amount of space we reserve for a return value.
-    dup large-struct? [ heap-size ] [ drop 0 ] if ;
-
-: alien-stack-frame ( node -- n )
-    alien-node-parameters* parameter-sizes drop ;
-
-: alien-invoke-frame ( node -- n )
-    #! One cell is temporary storage, temp@
-    dup return>> return-size
-    swap alien-stack-frame +
-    cell + ;
-
-: set-stack-frame ( n -- )
-    dup [ frame-required ] when* \ stack-frame set ;
-
-: with-stack-frame ( n quot -- )
-    swap set-stack-frame
-    call
-    f set-stack-frame ; inline
-
-GENERIC: reg-size ( register-class -- n )
-
-M: int-regs reg-size drop cell ;
-
-M: single-float-regs reg-size drop 4 ;
-
-M: double-float-regs reg-size drop 8 ;
-
-GENERIC: reg-class-variable ( register-class -- symbol )
-
-M: reg-class reg-class-variable ;
-
-M: float-regs reg-class-variable drop float-regs ;
-
-GENERIC: inc-reg-class ( register-class -- )
-
-M: reg-class inc-reg-class
-    dup reg-class-variable inc
-    fp-shadows-int? [ reg-size stack-params +@ ] [ drop ] if ;
-
-M: float-regs inc-reg-class
-    dup call-next-method
-    fp-shadows-int? [ reg-size cell /i int-regs +@ ] [ drop ] if ;
-
-: reg-class-full? ( class -- ? )
-    [ reg-class-variable get ] [ param-regs length ] bi >= ;
-
-: spill-param ( reg-class -- n reg-class )
-    stack-params get
-    >r reg-size stack-params +@ r>
-    stack-params ;
-
-: fastcall-param ( reg-class -- n reg-class )
-    [ reg-class-variable get ] [ inc-reg-class ] [ ] tri ;
-
-: alloc-parameter ( parameter -- reg reg-class )
-    c-type-reg-class dup reg-class-full?
-    [ spill-param ] [ fastcall-param ] if
-    [ param-reg ] keep ;
-
-: (flatten-int-type) ( size -- )
-    cell /i "void*" c-type <repetition> % ;
-
-GENERIC: flatten-value-type ( type -- )
-
-M: object flatten-value-type , ;
-
-M: struct-type flatten-value-type ( type -- )
-    stack-size cell align (flatten-int-type) ;
-
-M: long-long-type flatten-value-type ( type -- )
-    stack-size cell align (flatten-int-type) ;
-
-: flatten-value-types ( params -- params )
-    #! Convert value type structs to consecutive void*s.
-    [
-        0 [
-            c-type
-            [ parameter-align (flatten-int-type) ] keep
-            [ stack-size cell align + ] keep
-            flatten-value-type
-        ] reduce drop
-    ] { } make ;
-
-: each-parameter ( parameters quot -- )
-    >r [ parameter-sizes nip ] keep r> 2each ; inline
-
-: reverse-each-parameter ( parameters quot -- )
-    >r [ parameter-sizes nip ] keep r> 2reverse-each ; inline
-
-: reset-freg-counts ( -- )
-    { int-regs float-regs stack-params } [ 0 swap set ] each ;
-
-: with-param-regs ( quot -- )
-    #! In quot you can call alloc-parameter
-    [ reset-freg-counts call ] with-scope ; inline
-
-: move-parameters ( node word -- )
-    #! Moves values from C stack to registers (if word is
-    #! %load-param-reg) and registers to C stack (if word is
-    #! %save-param-reg).
-    >r
-    alien-node-parameters*
-    flatten-value-types
-    r> [ >r alloc-parameter r> execute ] curry each-parameter ;
-    inline
-
-: if-void ( type true false -- )
-    pick "void" = [ drop nip call ] [ nip call ] if ; inline
-
-: alien-invoke-stack ( node extra -- )
-    over parameters>> length + dup reify-curries
-    over consume-values
-    dup return>> "void" = 0 1 ?
-    swap produce-values ;
-
-: (param-prep-quot) ( parameters -- )
-    dup empty? [
-        drop
-    ] [
-        unclip c-type c-type-unboxer-quot %
-        \ >r , (param-prep-quot) \ r> ,
-    ] if ;
-
-: param-prep-quot ( node -- quot )
-    parameters>> [ <reversed> (param-prep-quot) ] [ ] make ;
-
-: unbox-parameters ( offset node -- )
-    parameters>> [
-        %prepare-unbox >r over + r> unbox-parameter
-    ] reverse-each-parameter drop ;
-
-: prepare-box-struct ( node -- offset )
-    #! Return offset on C stack where to store unboxed
-    #! parameters. If the C function is returning a structure,
-    #! the first parameter is an implicit target area pointer,
-    #! so we need to use a different offset.
-    return>> dup large-struct?
-    [ heap-size %prepare-box-struct cell ] [ drop 0 ] if ;
-
-: objects>registers ( node -- )
-    #! Generate code for unboxing a list of C types, then
-    #! generate code for moving these parameters to register on
-    #! architectures where parameters are passed in registers.
-    [
-        [ prepare-box-struct ] keep
-        [ unbox-parameters ] keep
-        \ %load-param-reg move-parameters
-    ] with-param-regs ;
-
-: box-return* ( node -- )
-    return>> [ ] [ box-return ] if-void ;
-
-: (return-prep-quot) ( parameters -- )
-    dup empty? [
-        drop
-    ] [
-        unclip c-type c-type-boxer-quot %
-        \ >r , (return-prep-quot) \ r> ,
-    ] if ;
-
-: callback-prep-quot ( node -- quot )
-    parameters>> [ <reversed> (return-prep-quot) ] [ ] make ;
-
-: return-prep-quot ( node -- quot )
-    [ return>> [ ] [ 1array (return-prep-quot) ] if-void ] [ ] make ;
-
-M: alien-invoke-error summary
-    drop
-    "Words calling ``alien-invoke'' must be compiled with the optimizing compiler." ;
-
-: pop-parameters pop-literal nip [ expand-constants ] map ;
-
-: stdcall-mangle ( symbol node -- symbol )
-    "@"
-    swap parameters>> parameter-sizes drop
-    number>string 3append ;
-
-TUPLE: no-such-library name ;
-
-M: no-such-library summary
-    drop "Library not found" ;
-
-M: no-such-library compiler-error-type
-    drop +linkage+ ;
-
-: no-such-library ( name -- )
-    \ no-such-library boa
-    compiling-word get compiler-error ;
-
-TUPLE: no-such-symbol name ;
-
-M: no-such-symbol summary
-    drop "Symbol not found" ;
-
-M: no-such-symbol compiler-error-type
-    drop +linkage+ ;
-
-: no-such-symbol ( name -- )
-    \ no-such-symbol boa
-    compiling-word get compiler-error ;
-
-: check-dlsym ( symbols dll -- )
-    dup dll-valid? [
-        dupd [ dlsym ] curry contains?
-        [ drop ] [ no-such-symbol ] if
-    ] [
-        dll-path no-such-library drop
-    ] if ;
-
-: alien-invoke-dlsym ( node -- symbols dll )
-    dup function>> dup pick stdcall-mangle 2array
-    swap library>> library dup [ dll>> ] when
-    2dup check-dlsym ;
-
-\ alien-invoke [
-    ! Four literals
-    4 ensure-values
-    #alien-invoke new
-    ! Compile-time parameters
-    pop-parameters >>parameters
-    pop-literal nip >>function
-    pop-literal nip >>library
-    pop-literal nip >>return
-    ! Quotation which coerces parameters to required types
-    dup param-prep-quot recursive-state get infer-quot
-    ! Set ABI
-    dup library>> library [ abi>> ] [ "cdecl" ] if* >>abi
-    ! Add node to IR
-    dup node,
-    ! Magic #: consume exactly the number of inputs
-    dup 0 alien-invoke-stack
-    ! Quotation which coerces return value to required type
-    return-prep-quot recursive-state get infer-quot
-] "infer" set-word-prop
-
-M: #alien-invoke generate-node
-    dup alien-invoke-frame [
-        end-basic-block
-        %prepare-alien-invoke
-        dup objects>registers
-        %prepare-var-args
-        dup alien-invoke-dlsym %alien-invoke
-        dup %cleanup
-        box-return*
-        iterate-next
-    ] with-stack-frame ;
-
-M: alien-indirect-error summary
-    drop "Words calling ``alien-indirect'' must be compiled with the optimizing compiler." ;
-
-\ alien-indirect [
-    ! Three literals and function pointer
-    4 ensure-values
-    4 reify-curries
-    #alien-indirect new
-    ! Compile-time parameters
-    pop-literal nip >>abi
-    pop-parameters >>parameters
-    pop-literal nip >>return
-    ! Quotation which coerces parameters to required types
-    dup param-prep-quot [ dip ] curry recursive-state get infer-quot
-    ! Add node to IR
-    dup node,
-    ! Magic #: consume the function pointer, too
-    dup 1 alien-invoke-stack
-    ! Quotation which coerces return value to required type
-    return-prep-quot recursive-state get infer-quot
-] "infer" set-word-prop
-
-M: #alien-indirect generate-node
-    dup alien-invoke-frame [
-        ! Flush registers
-        end-basic-block
-        ! Save registers for GC
-        %prepare-alien-invoke
-        ! Save alien at top of stack to temporary storage
-        %prepare-alien-indirect
-        dup objects>registers
-        %prepare-var-args
-        ! Call alien in temporary storage
-        %alien-indirect
-        dup %cleanup
-        box-return*
-        iterate-next
-    ] with-stack-frame ;
-
-! Callbacks are registered in a global hashtable. If you clear
-! this hashtable, they will all be blown away by code GC, beware
-SYMBOL: callbacks
-
-[ H{ } clone callbacks set-global ] "alien.compiler" add-init-hook
-
-: register-callback ( word -- ) dup callbacks get set-at ;
-
-M: alien-callback-error summary
-    drop "Words calling ``alien-callback'' must be compiled with the optimizing compiler." ;
-
-: callback-bottom ( node -- )
-    xt>> [ [ register-callback ] [ word-xt drop <alien> ] bi ] curry
-    recursive-state get infer-quot ;
-
-\ alien-callback [
-    4 ensure-values
-    #alien-callback new dup node,
-    pop-literal nip >>quot
-    pop-literal nip >>abi
-    pop-parameters >>parameters
-    pop-literal nip >>return
-    gensym >>xt
-    callback-bottom
-] "infer" set-word-prop
-
-: box-parameters ( node -- )
-    alien-node-parameters* [ box-parameter ] each-parameter ;
-
-: registers>objects ( node -- )
-    [
-        dup \ %save-param-reg move-parameters
-        "nest_stacks" f %alien-invoke
-        box-parameters
-    ] with-param-regs ;
-
-TUPLE: callback-context ;
-
-: current-callback 2 getenv ;
-
-: wait-to-return ( token -- )
-    dup current-callback eq? [
-        drop
-    ] [
-        yield wait-to-return
-    ] if ;
-
-: do-callback ( quot token -- )
-    init-catchstack
-    dup 2 setenv
-    slip
-    wait-to-return ; inline
-
-: callback-return-quot ( ctype -- quot )
-    return>> {
-        { [ dup "void" = ] [ drop [ ] ] }
-        { [ dup large-struct? ] [ heap-size [ memcpy ] curry ] }
-        [ c-type c-type-unboxer-quot ]
-    } cond ;
-
-: wrap-callback-quot ( node -- quot )
-    [
-        [ callback-prep-quot ]
-        [ quot>> ]
-        [ callback-return-quot ] tri 3append ,
-        [ callback-context new do-callback ] %
-    ] [ ] make ;
-
-: %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
-
-: callback-unwind ( node -- n )
-    {
-        { [ dup abi>> "stdcall" = ] [ alien-stack-frame ] }
-        { [ dup return>> large-struct? ] [ drop 4 ] }
-        [ drop 0 ]
-    } cond ;
-
-: %callback-return ( node -- )
-    #! All the extra book-keeping for %unwind is only for x86.
-    #! On other platforms its an alias for %return.
-    dup alien-node-return*
-    [ %unnest-stacks ] [ %callback-value ] if-void
-    callback-unwind %unwind ;
-
-: generate-callback ( node -- )
-    dup xt>> dup [
-        init-templates
-        %prologue-later
-        dup alien-stack-frame [
-            [ registers>objects ]
-            [ wrap-callback-quot %alien-callback ]
-            [ %callback-return ]
-            tri
-        ] with-stack-frame
-    ] with-generator ;
-
-M: #alien-callback generate-node
-    end-basic-block generate-callback iterate-next ;
diff --git a/core/alien/compiler/summary.txt b/core/alien/compiler/summary.txt
deleted file mode 100644
index f5a0c6deb9..0000000000
--- a/core/alien/compiler/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-C library interface implementation
diff --git a/core/alien/structs/structs.factor b/core/alien/structs/structs.factor
deleted file mode 100755
index bc5fa5a3f1..0000000000
--- a/core/alien/structs/structs.factor
+++ /dev/null
@@ -1,104 +0,0 @@
-! Copyright (C) 2004, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic hashtables kernel kernel.private math
-namespaces parser sequences strings words libc slots
-slots.deprecated alien.c-types cpu.architecture ;
-IN: alien.structs
-
-: align-offset ( offset type -- offset )
-    c-type c-type-align align ;
-
-: struct-offsets ( specs -- size )
-    0 [
-        [ slot-spec-type align-offset ] keep
-        [ set-slot-spec-offset ] 2keep
-        slot-spec-type heap-size +
-    ] reduce ;
-
-: define-struct-slot-word ( spec word quot -- )
-    rot slot-spec-offset prefix define-inline ;
-
-: define-getter ( type spec -- )
-    [ set-reader-props ] keep
-    [ ]
-    [ slot-spec-reader ]
-    [
-        slot-spec-type
-        [ c-getter ] [ c-type c-type-boxer-quot ] bi append
-    ] tri
-    define-struct-slot-word ;
-
-: define-setter ( type spec -- )
-    [ set-writer-props ] keep
-    [ ]
-    [ slot-spec-writer ]
-    [ slot-spec-type c-setter ] tri
-    define-struct-slot-word ;
-
-: define-field ( type spec -- )
-    2dup define-getter define-setter ;
-
-: if-value-structs? ( ctype true false -- )
-    value-structs?
-    [ drop call ] [ >r 2drop "void*" r> call ] if ; inline
-
-TUPLE: struct-type size align fields ;
-
-M: struct-type heap-size struct-type-size ;
-
-M: struct-type c-type-align struct-type-align ;
-
-M: struct-type c-type-stack-align? drop f ;
-
-M: struct-type unbox-parameter
-    [ heap-size %unbox-struct ]
-    [ unbox-parameter ]
-    if-value-structs? ;
-
-M: struct-type unbox-return
-    f swap heap-size %unbox-struct ;
-
-M: struct-type box-parameter
-    [ heap-size %box-struct ]
-    [ box-parameter ]
-    if-value-structs? ;
-
-M: struct-type box-return
-    f swap heap-size %box-struct ;
-
-M: struct-type stack-size
-    [ heap-size ] [ stack-size ] if-value-structs? ;
-
-: c-struct? ( type -- ? ) (c-type) struct-type? ;
-
-: (define-struct) ( name vocab size align fields -- )
-    >r [ align ] keep r>
-    struct-type boa
-    -rot define-c-type ;
-
-: make-field ( struct-name vocab type field-name -- spec )
-    [
-        -rot expand-constants ,
-        over ,
-        3dup reader-word ,
-        writer-word ,
-    ] { } make
-    first4 0 -rot <slot-spec> ;
-
-: define-struct-early ( name vocab fields -- fields )
-    -rot [ rot first2 make-field ] 2curry map ;
-
-: compute-struct-align ( types -- n )
-    [ c-type-align ] map supremum ;
-
-: define-struct ( name vocab fields -- )
-    pick >r
-    [ struct-offsets ] keep
-    [ [ slot-spec-type ] map compute-struct-align ] keep
-    [ (define-struct) ] keep
-    r> [ swap define-field ] curry each ;
-
-: define-union ( name vocab members -- )
-    [ expand-constants ] map
-    [ [ heap-size ] map supremum ] keep
-    compute-struct-align f (define-struct) ;
diff --git a/core/arrays/arrays-tests.factor b/core/arrays/arrays-tests.factor
index a7801c7d74..415a2f37f9 100755
--- a/core/arrays/arrays-tests.factor
+++ b/core/arrays/arrays-tests.factor
@@ -1,4 +1,4 @@
-USING: arrays kernel sequences sequences.private growable
+USING: accessors arrays kernel sequences sequences.private growable
 tools.test vectors layouts system math vectors.private ;
 IN: arrays.tests
 
@@ -11,7 +11,7 @@ IN: arrays.tests
 [ V{ "a" "b" "c" } ] [ { "a" "b" "c" } >vector ] unit-test
 [ f ] [ { "a" "b" "c" } dup >array eq? ] unit-test
 [ t ] [ { "a" "b" "c" } dup { } like eq? ] unit-test
-[ t ] [ { "a" "b" "c" } dup dup length array>vector underlying eq? ] unit-test
+[ t ] [ { "a" "b" "c" } dup dup length vector boa underlying>> eq? ] unit-test
 [ V{ "a" "b" "c" } ] [ { "a" "b" "c" } V{ } like ] unit-test
 [ { "a" "b" "c" } ] [ { "a" } { "b" "c" } append ] unit-test
 [ { "a" "b" "c" "d" "e" } ]
diff --git a/core/arrays/arrays.factor b/core/arrays/arrays.factor
index 9c5f40d883..b023398762 100755
--- a/core/arrays/arrays.factor
+++ b/core/arrays/arrays.factor
@@ -1,11 +1,11 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel kernel.private math math.private sequences
-sequences.private ;
+USING: accessors kernel kernel.private math math.private
+sequences sequences.private ;
 IN: arrays
 
 M: array clone (clone) ;
-M: array length array-capacity ;
+M: array length length>> ;
 M: array nth-unsafe >r >fixnum r> array-nth ;
 M: array set-nth-unsafe >r >fixnum r> set-array-nth ;
 M: array resize resize-array ;
@@ -23,12 +23,12 @@ M: array equal?
 
 INSTANCE: array sequence
 
-: 1array ( x -- array ) 1 swap <array> ; flushable
+: 1array ( x -- array ) 1 swap <array> ; inline
 
-: 2array ( x y -- array ) { } 2sequence ; flushable
+: 2array ( x y -- array ) { } 2sequence ; inline
 
-: 3array ( x y z -- array ) { } 3sequence ; flushable
+: 3array ( x y z -- array ) { } 3sequence ; inline
 
-: 4array ( w x y z -- array ) { } 4sequence ; flushable
+: 4array ( w x y z -- array ) { } 4sequence ; inline
 
 PREDICATE: pair < array length 2 number= ;
diff --git a/core/assocs/assocs-docs.factor b/core/assocs/assocs-docs.factor
index 68be9c9b06..f969b208eb 100755
--- a/core/assocs/assocs-docs.factor
+++ b/core/assocs/assocs-docs.factor
@@ -1,7 +1,7 @@
-! Copyright (C) 2007 Daniel Ehrenberg and Slava Pestov
+! Copyright (C) 2007 Daniel Ehrenberg, Slava Pestov, and Doug Coleman
 ! See http://factorcode.org/license.txt for BSD license.
 USING: help.markup help.syntax kernel sequences
-sequences.private namespaces math ;
+sequences.private namespaces math quotations ;
 IN: assocs
 
 ARTICLE: "alists" "Association lists"
@@ -39,17 +39,16 @@ ARTICLE: "assocs-protocol" "Associative mapping protocol"
 "All associative mappings must implement methods on the following generic words:"
 { $subsection at* }
 { $subsection assoc-size }
-"At least one of the following two generic words must have a method; the " { $link assoc } " mixin has default definitions which are mutually recursive:"
 { $subsection >alist }
-{ $subsection assoc-find }
 "Mutable assocs should implement the following additional words:"
 { $subsection set-at }
 { $subsection delete-at }
 { $subsection clear-assoc }
-"The following two words are optional:"
+"The following three words are optional:"
+{ $subsection value-at* }
 { $subsection new-assoc }
 { $subsection assoc-like }
-"Assocs should also implement methods on the " { $link clone } ", " { $link equal? } " and " { $link hashcode } " generic words. Two utility words will help with the implementation of the last two:"
+"Assocs should also implement methods on the " { $link clone } ", " { $link equal? } " and " { $link hashcode* } " generic words. Two utility words will help with the implementation of the last two:"
 { $subsection assoc= }
 { $subsection assoc-hashcode }
 "Finally, assoc classes should define a word for converting other types of assocs; conventionally, such words are named " { $snippet ">" { $emphasis "class" } } " where " { $snippet { $emphasis "class" } } " is the class name. Such a word can be implemented using a utility:"
@@ -59,13 +58,19 @@ ARTICLE: "assocs-lookup" "Lookup and querying of assocs"
 "Utility operations built up from the " { $link "assocs-protocol" } ":"
 { $subsection key? }
 { $subsection at }
-{ $subsection value-at }
 { $subsection assoc-empty? }
 { $subsection keys }
 { $subsection values }
 { $subsection assoc-stack }
 { $see-also at* assoc-size } ;
 
+ARTICLE: "assocs-values" "Transposed assoc operations"
+"Most assoc words take a key and find the corresponding value. The following words take a value and find the corresponding key:"
+{ $subsection value-at }
+{ $subsection value-at* }
+{ $subsection value? }
+"With most assoc implementations, these words runs in linear time, proportional to the number of entries in the assoc. For fast value lookups, use " { $vocab-link "biassocs" } "." ;
+
 ARTICLE: "assocs-sets" "Set-theoretic operations on assocs"
 "It is often useful to use the keys of an associative mapping as a set, exploiting the constant or logarithmic lookup time of most implementations (" { $link "alists" } " being a notable exception)."
 { $subsection assoc-subset? }
@@ -76,16 +81,27 @@ ARTICLE: "assocs-sets" "Set-theoretic operations on assocs"
 { $subsection remove-all }
 { $subsection substitute }
 { $subsection substitute-here }
+{ $subsection extract-keys }
 { $see-also key? assoc-contains? assoc-all? "sets" } ;
 
 ARTICLE: "assocs-mutation" "Storing keys and values in assocs"
 "Utility operations built up from the " { $link "assocs-protocol" } ":"
 { $subsection delete-at* }
-{ $subsection delete-any }
 { $subsection rename-at }
 { $subsection change-at }
 { $subsection at+ }
-{ $see-also set-at delete-at clear-assoc } ;
+{ $see-also set-at delete-at clear-assoc push-at } ;
+
+ARTICLE: "assocs-conversions" "Associative mapping conversions"
+"Converting to other assocs:"
+{ $subsection assoc-clone-like }
+"Combining a sequence of assocs into a single assoc:"
+{ $subsection assoc-combine }
+"Creating an assoc from key/value sequences:"
+{ $subsection zip }
+"Creating key/value sequences from an assoc:"
+{ $subsection unzip }
+;
 
 ARTICLE: "assocs-combinators" "Associative mapping combinators"
 "The following combinators can be used on any associative mapping."
@@ -94,15 +110,20 @@ $nl
 $nl
 "The standard functional programming idioms:"
 { $subsection assoc-each }
+{ $subsection assoc-find }
 { $subsection assoc-map }
 { $subsection assoc-push-if }
 { $subsection assoc-filter }
 { $subsection assoc-contains? }
 { $subsection assoc-all? }
-"Three additional combinators:"
+"Additional combinators:"
 { $subsection cache }
 { $subsection map>assoc }
-{ $subsection assoc>map } ;
+{ $subsection assoc>map }
+{ $subsection assoc-map-as }
+{ $subsection search-alist }
+"Utility word:"
+{ $subsection assoc-pusher } ;
 
 ARTICLE: "assocs" "Associative mapping operations"
 "An " { $emphasis "associative mapping" } ", abbreviated " { $emphasis "assoc" } ", is a collection of key/value pairs which provides efficient lookup and storage indexed by key."
@@ -113,9 +134,11 @@ $nl
 { $subsection "assocs-protocol" }
 "A large set of utility words work on any object whose class implements the associative mapping protocol."
 { $subsection "assocs-lookup" }
+{ $subsection "assocs-values" }
 { $subsection "assocs-mutation" }
 { $subsection "assocs-combinators" }
-{ $subsection "assocs-sets" } ;
+{ $subsection "assocs-sets" }
+{ $subsection "assocs-conversions" } ;
 
 ABOUT: "assocs"
 
@@ -139,8 +162,7 @@ HELP: new-assoc
 
 HELP: assoc-find
 { $values { "assoc" assoc } { "quot" "a quotation with stack effect " { $snippet "( key value -- ? )" } } { "key" "the successful key, or f" } { "value" "the successful value, or f" } { "?" "a boolean" } }
-{ $contract "Applies a predicate quotation to each entry in the assoc. Returns the key or value that the quotation succeeds on, or " { $link f } " for both if the quotation fails. It also returns a boolean describing whether there was anything found." }
-{ $notes "The " { $link assoc } " mixin has a default implementation for this generic word which first converts the assoc to an association list, then iterates over that with the " { $link find } " combinator for sequences." } ;
+{ $description "Applies a predicate quotation to each entry in the assoc. Returns the key and value that the quotation succeeds on, or " { $link f } " for both if the quotation fails. It also returns a boolean describing whether there was anything found; this can be used to distinguish between a key and a value equal to " { $link f } ", or nothing being found." } ;
 
 HELP: clear-assoc
 { $values { "assoc" assoc } }
@@ -199,6 +221,8 @@ HELP: assoc-map
     }
 } ;
 
+{ assoc-map assoc-map-as } related-words
+
 HELP: assoc-push-if
 { $values { "accum" "a resizable mutable sequence" } { "quot" "a quotation with stack effect " { $snippet "( key value -- ? )" } } { "key" object } { "value" object } }
 { $description "If the quotation yields true when applied to the key/value pair, adds the key/value pair at the end of " { $snippet "accum" } "." } ;
@@ -234,22 +258,23 @@ HELP: assoc-stack
 { $description "Searches for the key in successive elements of the sequence, starting from the end. If an assoc containing the key is found, the associated value is output. If no assoc contains the key, outputs " { $link f } "." }
 { $notes "This word is used to implement abstractions such as nested scopes; if the sequence is a stack represented by a vector, then the most recently pushed assoc -- the innermost scope -- will be searched first." } ;
 
+HELP: value-at*
+{ $values { "value" "an object" } { "assoc" assoc } { "key/f" "the key associated to the value, or " { $link f } } { "?" "a boolean" } }
+{ $description "Looks up the key associated with a value. The boolean flag can decide beteen the case of a missing key, and a key of " { $link f } "." } ;
+
 HELP: value-at
 { $values { "value" "an object" } { "assoc" assoc } { "key/f" "the key associated to the value, or " { $link f } } }
-{ $description "Looks up the key associated with a value. No distinction is made between a missing key and a key set to " { $link f } "." }
-{ $notes "This word runs in linear time, proportional to the number of entries in the assoc." } ;
+{ $description "Looks up the key associated with a value. No distinction is made between a missing key and a key set to " { $link f } "." } ;
+
+HELP: value?
+{ $values { "value" "an object" } { "assoc" assoc } { "?" "a boolean" } }
+{ $description "Tests if an assoc contains at least one key with the given value." } ;
 
 HELP: delete-at*
 { $values { "key" "a key" } { "assoc" assoc } { "old" "the previous value or " { $link f } } { "?" "a boolean" } }
 { $description "Removes an entry from the assoc and outputs the previous value together with a boolean indicating whether it was present." }
 { $side-effects "assoc" } ;
 
-HELP: delete-any
-{ $values { "assoc" assoc } { "key" "a key" } { "value" "a value" } }
-{ $description "Removes an undetermined entry from the assoc and outputs it." }
-{ $errors "Throws an error if the assoc is empty." }
-{ $notes "This word is useful when using an assoc as an unordered queue which requires constant-time membership tests. Entries are enqueued with " { $link set-at } " and dequeued with " { $link delete-any } "." } ;
-
 HELP: rename-at
 { $values { "newkey" object } { "key" object } { "assoc" assoc } }
 { $description "Removes the values associated to " { $snippet "key" } " and re-adds it as " { $snippet "newkey" } ". Does nothing if the assoc does not contain " { $snippet "key" } "." }
@@ -328,3 +353,96 @@ HELP: >alist
 { $values { "assoc" assoc } { "newassoc" "an array of key/value pairs" } }
 { $contract "Converts an associative structure into an association list." }
 { $notes "The " { $link assoc } " mixin has a default implementation for this generic word which constructs the association list by iterating over the assoc with " { $link assoc-find } "." } ;
+
+HELP: assoc-clone-like
+{ $values
+     { "assoc" assoc } { "exemplar" assoc }
+     { "newassoc" assoc } }
+{ $description "Outputs a newly-allocated assoc with the same elements as " { $snippet "assoc" } "." }
+{ $examples { $example "USING: prettyprint assocs hashtables ;" "H{ { 1 2 } { 3 4 } } { } assoc-clone-like ." "{ { 1 2 } { 3 4 } }" } } ;
+
+HELP: assoc-combine
+{ $values
+     { "seq" "a sequence of assocs" }
+     { "union" assoc } }
+{ $description "Takes the union of all of the " { $snippet "assocs" } " in " { $snippet "seq" } "." }
+{ $examples { $example "USING: prettyprint assocs ;" "{ H{ { 1 2 } } H{ { 3 4 } } } assoc-combine ." "H{ { 1 2 } { 3 4 } }" } } ;
+
+HELP: assoc-map-as
+{ $values
+     { "assoc" assoc } { "quot" quotation } { "exemplar" assoc }
+     { "newassoc" assoc } }
+{ $description "Applies the quotation to each entry in the input assoc and collects the results in a new assoc of the stame type as the exemplar." }
+{ $examples { $example "USING: prettyprint assocs hashtables math ;" " H{ { 1 2 } { 3 4 } } [ sq ] { } assoc-map-as ." "{ { 1 4 } { 3 16 } }" } } ;
+
+HELP: assoc-pusher
+{ $values
+     { "quot" "a predicate quotation" }
+     { "quot'" quotation } { "accum" assoc } }
+{ $description "Creates a new " { $snippet "assoc" } " to accumulate the key/value pairs which return true for a predicate.  Returns a new quotation which accepts a pair of object to be tested and stored in the accumulator if the test yields true. The accumulator is left on the stack for convenience." }
+{ $example "! Find only the pairs that sum to 5:" "USING: prettyprint assocs math kernel ;"
+           "{ { 1 2 } { 2 3 } { 3 4 } } [ + 5 = ] assoc-pusher [ assoc-each ] dip ."
+           "V{ { 2 3 } }"
+}
+{ $notes "Used to implement the " { $link assoc-filter } " word." } ;
+
+
+HELP: extract-keys
+{ $values
+     { "seq" sequence } { "assoc" assoc }
+     { "subassoc" assoc } }
+{ $description "Outputs an new " { $snippet "assoc" } " with key/value pairs whose keys match the elements in the input " { $snippet "seq" } "." }
+{ $examples
+    { $example "USING: prettyprint assocs ;"
+               "{ 1 3 } { { 1 10 } { 2 20 } { 3 30 } } extract-keys ."
+               "{ { 1 10 } { 3 30 } }"
+    }
+} ;
+
+HELP: push-at
+{ $values
+     { "value" object } { "key" object } { "assoc" assoc } }
+{ $description "Pushes the " { $snippet "value" } " onto a " { $snippet "vector" } " stored at the " { $snippet "key" } " in the " { $snippet "assoc" } ". If the " { $snippet "key" } " does not yet exist, creates a new " { $snippet "vector" } " at that " { $snippet "key" } " and pushes the " { $snippet "value" } "." }
+{ $examples { $example  "USING: prettyprint assocs kernel ;"
+"H{ { \"cats\" V{ \"Mittens\" } } } \"Mew\" \"cats\" pick push-at ."
+"H{ { \"cats\" V{ \"Mittens\" \"Mew\" } } }"
+} } ;
+
+HELP: search-alist
+{ $values
+     { "key" object } { "alist" "an array of key/value pairs" }
+     { "pair/f" "a key/value pair" } { "i/f" integer } }
+{ $description "Performs an in-order traversal of a " { $snippet "alist" } " and stops when the key is matched or the end of the " { $snippet "alist" } " has been reached. If there is no match, both outputs are " { $link f } "." }
+{ $examples { $example "USING: prettyprint assocs kernel ;"
+                        "3 { { 1 2 } { 3 4 } } search-alist [ . ] bi@"
+                       "{ 3 4 }\n1"
+            } { $example "USING: prettyprint assocs kernel ;"
+                       "6 { { 1 2 } { 3 4 } } search-alist [ . ] bi@"
+                       "f\nf"
+            }
+} ;
+
+HELP: unzip
+{ $values
+     { "assoc" assoc }
+     { "keys" sequence } { "values" sequence } }
+{ $description "Outputs an array of keys and an array of values of the input " { $snippet "assoc" } "." }
+{ $examples 
+    { $example "USING: prettyprint assocs kernel ;"
+               "{ { 1 4 } { 2 5 } { 3 6 } } unzip [ . ] bi@"
+               "{ 1 2 3 }\n{ 4 5 6 }" 
+    }
+} ;
+
+HELP: zip
+{ $values
+     { "keys" sequence } { "values" sequence }
+     { "alist" "an array of key/value pairs" } }
+{ $description "Combines two sequences pairwise into a single sequence of key/value pairs." }
+{ $examples 
+    { $example "" "USING: prettyprint assocs ;"
+               "{ 1 2 3 } { 4 5 6 } zip ."
+               "{ { 1 4 } { 2 5 } { 3 6 } }"
+    }
+} ;
+{ unzip zip } related-words
diff --git a/core/assocs/assocs-tests.factor b/core/assocs/assocs-tests.factor
index 43a1bac82d..4a44dbd641 100755
--- a/core/assocs/assocs-tests.factor
+++ b/core/assocs/assocs-tests.factor
@@ -1,7 +1,7 @@
 IN: assocs.tests
 USING: kernel math namespaces tools.test vectors sequences
 sequences.private hashtables io prettyprint assocs
-continuations ;
+continuations float-arrays ;
 
 [ t ] [ H{ } dup assoc-subset? ] unit-test
 [ f ] [ H{ { 1 3 } } H{ } assoc-subset? ] unit-test
diff --git a/core/assocs/assocs.factor b/core/assocs/assocs.factor
index 6b0798f2e3..9b8065e6c4 100755
--- a/core/assocs/assocs.factor
+++ b/core/assocs/assocs.factor
@@ -20,28 +20,25 @@ GENERIC: assoc-clone-like ( assoc exemplar -- newassoc )
 
 GENERIC: >alist ( assoc -- newassoc )
 
-GENERIC# assoc-find 1 ( assoc quot -- key value ? ) inline
+: (assoc-each) ( assoc quot -- seq quot' )
+    >r >alist r> [ first2 ] prepose ; inline
 
-M: assoc assoc-find
-    >r >alist [ first2 ] r> compose find swap
-    [ first2 t ] [ drop f f f ] if ;
+: assoc-find ( assoc quot -- key value ? )
+    (assoc-each) find swap [ first2 t ] [ drop f f f ] if ; inline
 
 : key? ( key assoc -- ? ) at* nip ; inline
 
 : assoc-each ( assoc quot -- )
-    [ f ] compose assoc-find 3drop ; inline
-
-: (assoc>map) ( quot accum -- quot' )
-    [ push ] curry compose ; inline
+    (assoc-each) each ; inline
 
 : assoc>map ( assoc quot exemplar -- seq )
-    >r over assoc-size
-    <vector> [ (assoc>map) assoc-each ] keep
-    r> like ; inline
+    >r accumulator >r assoc-each r> r> like ; inline
+
+: assoc-map-as ( assoc quot exemplar -- newassoc )
+    >r [ 2array ] compose V{ } assoc>map r> assoc-like ; inline
 
 : assoc-map ( assoc quot -- newassoc )
-    over >r [ 2array ] compose V{ } assoc>map r> assoc-like ;
-    inline
+    over assoc-map-as ; inline
 
 : assoc-push-if ( key value quot accum -- )
     >r 2keep r> roll
@@ -78,12 +75,6 @@ M: assoc assoc-clone-like ( assoc exemplar -- newassoc )
 : rename-at ( newkey key assoc -- )
     tuck delete-at* [ -rot set-at ] [ 3drop ] if ;
 
-: delete-any ( assoc -- key value )
-    [
-        [ 2drop t ] assoc-find
-        [ "Assoc is empty" throw ] unless over
-    ] keep delete-at ;
-
 : assoc-empty? ( assoc -- ? )
     assoc-size zero? ;
 
@@ -93,7 +84,7 @@ M: assoc assoc-clone-like ( assoc exemplar -- newassoc )
     ] [
         3dup nth-unsafe at*
         [ >r 3drop r> ] [ drop >r 1- r> (assoc-stack) ] if
-    ] if ; inline
+    ] if ; inline recursive
 
 : assoc-stack ( key seq -- value )
     dup length 1- swap (assoc-stack) ;
@@ -119,6 +110,9 @@ M: assoc assoc-clone-like ( assoc exemplar -- newassoc )
     2dup [ assoc-size ] bi@ + pick new-assoc
     [ rot update ] keep [ swap update ] keep ;
 
+: assoc-combine ( seq -- union )
+    H{ } clone [ dupd update ] reduce ;
+
 : assoc-diff ( assoc1 assoc2 -- diff )
     [ nip key? not ] curry assoc-filter ;
 
@@ -153,15 +147,24 @@ M: assoc assoc-clone-like ( assoc exemplar -- newassoc )
 : extract-keys ( seq assoc -- subassoc )
     [ [ dupd at ] curry ] keep map>assoc ;
 
-M: assoc >alist [ 2array ] { } assoc>map ;
+GENERIC: value-at* ( value assoc -- key/f ? )
 
-: value-at ( value assoc -- key/f )
-    swap [ = nip ] curry assoc-find 2drop ;
+M: assoc value-at* swap [ = nip ] curry assoc-find nip ;
+
+: value-at ( value assoc -- key/f ) value-at* drop ;
+
+: value? ( value assoc -- ? ) value-at* nip ;
+
+: push-at ( value key assoc -- )
+    [ ?push ] change-at ;
 
 : zip ( keys values -- alist )
     2array flip ; inline
 
-: search-alist ( key alist -- pair i )
+: unzip ( assoc -- keys values )
+    dup assoc-empty? [ drop { } { } ] [ >alist flip first2 ] if ;
+
+: search-alist ( key alist -- pair/f i/f )
     [ first = ] with find swap ; inline
 
 M: sequence at*
@@ -186,7 +189,7 @@ M: sequence assoc-clone-like
     >r >alist r> clone-like ;
 
 M: sequence assoc-like
-    over sequence? [ like ] [ assoc-clone-like ] if ;
+    >r >alist r> like ;
 
 M: sequence >alist ;
 
@@ -207,7 +210,7 @@ M: enum at*
 
 M: enum set-at seq>> set-nth ;
 
-M: enum delete-at enum-seq delete-nth ;
+M: enum delete-at seq>> delete-nth ;
 
 M: enum >alist ( enum -- alist )
     seq>> [ length ] keep zip ;
diff --git a/core/bit-arrays/bit-arrays-tests.factor b/core/bit-arrays/bit-arrays-tests.factor
deleted file mode 100755
index e28c16c3c2..0000000000
--- a/core/bit-arrays/bit-arrays-tests.factor
+++ /dev/null
@@ -1,54 +0,0 @@
-USING: sequences arrays bit-arrays kernel tools.test math
-random ;
-IN: bit-arrays.tests
-
-[ 100 ] [ 100 <bit-array> length ] unit-test
-
-[
-    { t f t }
-] [
-    3 <bit-array> t 0 pick set-nth t 2 pick set-nth
-    >array
-] unit-test
-
-[
-    { t f t }
-] [
-    { t f t } >bit-array >array
-] unit-test
-
-[
-    { t f t } { f t f }
-] [
-    { t f t } >bit-array dup clone dup [ not ] change-each
-    [ >array ] bi@
-] unit-test
-
-[
-    { f f f f f }
-] [
-    { t f t t f } >bit-array dup clear-bits >array
-] unit-test
-
-[
-    { t t t t t }
-] [
-    { t f t t f } >bit-array dup set-bits >array
-] unit-test
-
-[ t ] [
-    100 [
-        drop 100 [ drop 2 random zero? ] map
-        dup >bit-array >array =
-    ] all?
-] unit-test
-
-[ ?{ f } ] [
-    1 2 { t f t f } <slice> >bit-array
-] unit-test
-
-[ ?{ t f t f f f } ] [ 6 ?{ t f t } resize-bit-array ] unit-test
-
-[ ?{ t t } ] [ 2 ?{ t t f t f t f t t t f t } resize-bit-array ] unit-test
-
-[ -10 ?{ } resize-bit-array ] must-fail
diff --git a/core/bit-arrays/bit-arrays.factor b/core/bit-arrays/bit-arrays.factor
deleted file mode 100755
index ffb9f5d195..0000000000
--- a/core/bit-arrays/bit-arrays.factor
+++ /dev/null
@@ -1,54 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: math alien.accessors kernel kernel.private sequences
-sequences.private ;
-IN: bit-arrays
-
-<PRIVATE
-
-: n>byte -3 shift ; inline
-
-: byte/bit ( n alien -- byte bit )
-    over n>byte alien-unsigned-1 swap 7 bitand ; inline
-
-: set-bit ( ? byte bit -- byte )
-    2^ rot [ bitor ] [ bitnot bitand ] if ; inline
-
-: bits>cells 31 + -5 shift ; inline
-
-: (set-bits) ( bit-array n -- )
-    over length bits>cells -rot [
-        spin 4 * set-alien-unsigned-4
-    ] 2curry each ; inline
-
-PRIVATE>
-
-M: bit-array length array-capacity ;
-
-M: bit-array nth-unsafe
-    >r >fixnum r> byte/bit bit? ;
-
-M: bit-array set-nth-unsafe
-    >r >fixnum r>
-    [ byte/bit set-bit ] 2keep
-    swap n>byte set-alien-unsigned-1 ;
-
-: clear-bits ( bit-array -- ) 0 (set-bits) ;
-
-: set-bits ( bit-array -- ) -1 (set-bits) ;
-
-M: bit-array clone (clone) ;
-
-: >bit-array ( seq -- bit-array ) ?{ } clone-like ; inline
-
-M: bit-array like drop dup bit-array? [ >bit-array ] unless ;
-
-M: bit-array new-sequence drop <bit-array> ;
-
-M: bit-array equal?
-    over bit-array? [ sequence= ] [ 2drop f ] if ;
-
-M: bit-array resize
-    resize-bit-array ;
-
-INSTANCE: bit-array sequence
diff --git a/core/bootstrap/layouts/layouts.factor b/core/bootstrap/layouts/layouts.factor
index e839576bc9..08df740305 100755
--- a/core/bootstrap/layouts/layouts.factor
+++ b/core/bootstrap/layouts/layouts.factor
@@ -1,15 +1,15 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: namespaces math words kernel alien byte-arrays
-hashtables vectors strings sbufs arrays bit-arrays
-float-arrays quotations assocs layouts classes.tuple.private
+hashtables vectors strings sbufs arrays
+quotations assocs layouts classes.tuple.private
 kernel.private ;
 
 BIN: 111 tag-mask set
 8 num-tags set
 3 tag-bits set
 
-20 num-types set
+18 num-types set
 
 H{
     { fixnum      BIN: 000 }
@@ -26,14 +26,12 @@ H{
 tag-numbers get H{
     { array 8 }
     { wrapper 9 }
-    { float-array 10 }
+    { byte-array 10 }
     { callstack 11 }
     { string 12 }
-    { bit-array 13 }
+    { tuple-layout 13 }
     { quotation 14 }
     { dll 15 }
     { alien 16 }
     { word 17 }
-    { byte-array 18 }
-    { tuple-layout 19 }
 } assoc-union type-numbers set
diff --git a/core/bootstrap/primitives.factor b/core/bootstrap/primitives.factor
index 6fc8ca7685..ad56dbd296 100755
--- a/core/bootstrap/primitives.factor
+++ b/core/bootstrap/primitives.factor
@@ -1,11 +1,11 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien arrays byte-arrays generic hashtables
-hashtables.private io kernel math namespaces parser sequences
-strings vectors words quotations assocs layouts classes
-classes.builtin classes.tuple classes.tuple.private
+hashtables.private io kernel math math.order namespaces parser
+sequences strings vectors words quotations assocs layouts
+classes classes.builtin classes.tuple classes.tuple.private
 kernel.private vocabs vocabs.loader source-files definitions
-slots.deprecated classes.union classes.intersection
+slots classes.union classes.intersection classes.predicate
 compiler.units bootstrap.image.private io.files accessors
 combinators ;
 IN: bootstrap.primitives
@@ -14,9 +14,11 @@ IN: bootstrap.primitives
 
 crossref off
 
+H{ } clone sub-primitives set
+
 "resource:core/bootstrap/syntax.factor" parse-file
 
-"resource:core/cpu/" architecture get {
+"resource:basis/cpu/" architecture get {
     { "x86.32" "x86/32" }
     { "x86.64" "x86/64" }
     { "linux-ppc" "ppc/linux" }
@@ -31,11 +33,14 @@ crossref off
 ! Bring up a bare cross-compiling vocabulary.
 "syntax" vocab vocab-words bootstrap-syntax set
 H{ } clone dictionary set
+H{ } clone new-classes set
 H{ } clone changed-definitions set
+H{ } clone changed-generics set
 H{ } clone forgotten-definitions set
 H{ } clone root-cache set
 H{ } clone source-files set
 H{ } clone update-map set
+H{ } clone implementors-map set
 init-caches
 
 ! Vocabulary for slot accessors
@@ -60,16 +65,14 @@ bootstrapping? on
     "alien"
     "alien.accessors"
     "arrays"
-    "bit-arrays"
     "byte-arrays"
     "byte-vectors"
     "classes.private"
     "classes.tuple"
     "classes.tuple.private"
+    "classes.predicate"
     "compiler.units"
     "continuations.private"
-    "float-arrays"
-    "generator"
     "growable"
     "hashtables"
     "hashtables.private"
@@ -103,24 +106,8 @@ bootstrapping? on
 } [ create-vocab drop ] each
 
 ! Builtin classes
-: lo-tag-eq-quot ( n -- quot )
-    [ \ tag , , \ eq? , ] [ ] make ;
-
-: hi-tag-eq-quot ( n -- quot )
-    [
-        [ dup tag ] % \ hi-tag tag-number , \ eq? ,
-        [ [ hi-tag ] % , \ eq? , ] [ ] make ,
-        [ drop f ] ,
-        \ if ,
-    ] [ ] make ;
-
-: builtin-predicate-quot ( class -- quot )
-    "type" word-prop
-    dup tag-mask get <
-    [ lo-tag-eq-quot ] [ hi-tag-eq-quot ] if ;
-
 : define-builtin-predicate ( class -- )
-    dup builtin-predicate-quot define-predicate ;
+    dup class>type [ builtin-instance? ] curry define-predicate ;
 
 : lookup-type-number ( word -- n )
     global [ target-word ] bind type-number ;
@@ -131,9 +118,12 @@ bootstrapping? on
     [ f f f builtin-class define-class ]
     tri ;
 
-: define-builtin-slots ( symbol slotspec -- )
-    [ drop ] [ 1 simple-slots ] 2bi
-    [ "slots" set-word-prop ] [ define-slots ] 2bi ;
+: prepare-slots ( slots -- slots' )
+    [ [ dup pair? [ first2 create ] when ] map ] map ;
+
+: define-builtin-slots ( class slots -- )
+    prepare-slots make-slots 1 finalize-slots
+    [ "slots" set-word-prop ] [ define-accessors ] 2bi ;
 
 : define-builtin ( symbol slotspec -- )
     >r [ define-builtin-predicate ] keep
@@ -148,10 +138,8 @@ bootstrapping? on
 "f" "syntax" lookup register-builtin
 "array" "arrays" create register-builtin
 "wrapper" "kernel" create register-builtin
-"float-array" "float-arrays" create register-builtin
 "callstack" "kernel" create register-builtin
 "string" "strings" create register-builtin
-"bit-array" "bit-arrays" create register-builtin
 "quotation" "quotations" create register-builtin
 "dll" "alien" create register-builtin
 "alien" "alien" create register-builtin
@@ -159,6 +147,46 @@ bootstrapping? on
 "byte-array" "byte-arrays" create register-builtin
 "tuple-layout" "classes.tuple.private" create register-builtin
 
+! For predicate classes
+"predicate-instance?" "classes.predicate" create drop
+
+! We need this before defining c-ptr below
+"f" "syntax" lookup { } define-builtin
+
+"f" "syntax" create [ not ] "predicate" set-word-prop
+"f?" "syntax" vocab-words delete-at
+
+! Some unions
+"integer" "math" create
+"fixnum" "math" lookup
+"bignum" "math" lookup
+2array
+define-union-class
+
+"rational" "math" create
+"integer" "math" lookup
+"ratio" "math" lookup
+2array
+define-union-class
+
+"real" "math" create
+"rational" "math" lookup
+"float" "math" lookup
+2array
+define-union-class
+
+"c-ptr" "alien" create [
+    "alien" "alien" lookup ,
+    "f" "syntax" lookup ,
+    "byte-array" "byte-arrays" lookup ,
+] { } make define-union-class
+
+! A predicate class used for declarations
+"array-capacity" "sequences.private" create
+"fixnum" "math" lookup
+0 bootstrap-max-array-capacity <fake-bignum> [ between? ] 2curry
+define-predicate-class
+
 ! Catch-all class for providing a default method.
 "object" "kernel" create
 [ f f { } intersection-class define-class ]
@@ -186,213 +214,79 @@ bi
 "bignum" "math" create ">bignum" "math" create 1quotation "coercer" set-word-prop
 
 "ratio" "math" create {
-    {
-        { "integer" "math" }
-        "numerator"
-        { "numerator" "math" }
-        f
-    }
-    {
-        { "integer" "math" }
-        "denominator"
-        { "denominator" "math" }
-        f
-    }
+    { "numerator" { "integer" "math" } read-only }
+    { "denominator" { "integer" "math" } read-only }
 } define-builtin
 
 "float" "math" create { } define-builtin
 "float" "math" create ">float" "math" create 1quotation "coercer" set-word-prop
 
 "complex" "math" create {
-    {
-        { "real" "math" }
-        "real-part"
-        { "real-part" "math" }
-        f
-    }
-    {
-        { "real" "math" }
-        "imaginary-part"
-        { "imaginary-part" "math" }
-        f
-    }
+    { "real" { "real" "math" } read-only }
+    { "imaginary" { "real" "math" } read-only }
 } define-builtin
 
-"f" "syntax" lookup { } define-builtin
-
-"array" "arrays" create { } define-builtin
+"array" "arrays" create {
+    { "length" { "array-capacity" "sequences.private" } read-only }
+} define-builtin
 
 "wrapper" "kernel" create {
-    {
-        { "object" "kernel" }
-        "wrapped"
-        { "wrapped" "kernel" }
-        f
-    }
+    { "wrapped" read-only }
 } define-builtin
 
 "string" "strings" create {
-    {
-        { "array-capacity" "sequences.private" }
-        "length"
-        { "length" "sequences" }
-        f
-    } {
-        { "object" "kernel" }
-        "aux"
-        { "string-aux" "strings.private" }
-        { "set-string-aux" "strings.private" }
-    }
+    { "length" { "array-capacity" "sequences.private" } read-only }
+    "aux"
 } define-builtin
 
 "quotation" "quotations" create {
-    {
-        { "object" "kernel" }
-        "array"
-        { "quotation-array" "quotations.private" }
-        f
-    }
-    {
-        { "object" "kernel" }
-        "compiled?"
-        { "quotation-compiled?" "quotations" }
-        f
-    }
+    { "array" { "array" "arrays" } read-only }
+    { "compiled" read-only }
 } define-builtin
 
 "dll" "alien" create {
-    {
-        { "byte-array" "byte-arrays" }
-        "path"
-        { "(dll-path)" "alien" }
-        f
-    }
-}
-define-builtin
-
-"alien" "alien" create {
-    {
-        { "c-ptr" "alien" }
-        "alien"
-        { "underlying-alien" "alien" }
-        f
-    } {
-        { "object" "kernel" }
-        "expired?"
-        { "expired?" "alien" }
-        f
-    }
-}
-define-builtin
-
-"word" "words" create {
-    f
-    {
-        { "object" "kernel" }
-        "name"
-        { "word-name" "words" }
-        { "set-word-name" "words" }
-    }
-    {
-        { "object" "kernel" }
-        "vocabulary"
-        { "word-vocabulary" "words" }
-        { "set-word-vocabulary" "words" }
-    }
-    {
-        { "quotation" "quotations" }
-        "def"
-        { "word-def" "words" }
-        { "set-word-def" "words.private" }
-    }
-    {
-        { "object" "kernel" }
-        "props"
-        { "word-props" "words" }
-        { "set-word-props" "words" }
-    }
-    {
-        { "object" "kernel" }
-        "compiled?"
-        { "compiled?" "words" }
-        f
-    }
-    {
-        { "fixnum" "math" }
-        "counter"
-        { "profile-counter" "tools.profiler.private" }
-        { "set-profile-counter" "tools.profiler.private" }
-    }
+    { "path" { "byte-array" "byte-arrays" } read-only }
 } define-builtin
 
-"byte-array" "byte-arrays" create { } define-builtin
+"alien" "alien" create {
+    { "underlying" { "c-ptr" "alien" } read-only }
+    "expired"
+} define-builtin
 
-"bit-array" "bit-arrays" create { } define-builtin
+"word" "words" create {
+    { "hashcode" { "fixnum" "math" } }
+    "name"
+    "vocabulary"
+    { "def" { "quotation" "quotations" } initial: [ ] }
+    "props"
+    { "compiled" read-only }
+    { "counter" { "fixnum" "math" } }
+    { "sub-primitive" read-only }
+} define-builtin
 
-"float-array" "float-arrays" create { } define-builtin
+"byte-array" "byte-arrays" create {
+    { "length" { "array-capacity" "sequences.private" } read-only }
+} define-builtin
 
 "callstack" "kernel" create { } define-builtin
 
 "tuple-layout" "classes.tuple.private" create {
-    {
-        { "fixnum" "math" }
-        "hashcode"
-        { "layout-hashcode" "classes.tuple.private" }
-        f
-    }
-    {
-        { "word" "words" }
-        "class"
-        { "layout-class" "classes.tuple.private" }
-        f
-    }
-    {
-        { "fixnum" "math" }
-        "size"
-        { "layout-size" "classes.tuple.private" }
-        f
-    }
-    {
-        { "array" "arrays" }
-        "superclasses"
-        { "layout-superclasses" "classes.tuple.private" }
-        f
-    }
-    {
-        { "fixnum" "math" }
-        "echelon"
-        { "layout-echelon" "classes.tuple.private" }
-        f
-    }
+    { "hashcode" { "fixnum" "math" } read-only }
+    { "class" { "word" "words" } initial: t read-only }
+    { "size" { "fixnum" "math" } read-only }
+    { "superclasses" { "array" "arrays" } initial: { } read-only }
+    { "echelon" { "fixnum" "math" } read-only }
 } define-builtin
 
-"tuple" "kernel" create {
-    [ { } define-builtin ]
-    [ { "delegate" } "slot-names" set-word-prop ]
-    [ define-tuple-layout ]
-    [
-        {
-            {
-                { "object" "kernel" }
-                "delegate"
-                { "delegate" "kernel" }
-                { "set-delegate" "kernel" }
-            }
-        }
-        [ drop ] [ generate-tuple-slots ] 2bi
-        [ "slots" set-word-prop ]
-        [ define-slots ]
-        2bi
-    ]
-} cleave
-
-"f" "syntax" create [ not ] "predicate" set-word-prop
-"f?" "syntax" vocab-words delete-at
+"tuple" "kernel" create
+[ { } define-builtin ]
+[ define-tuple-layout ]
+bi
 
 ! Create special tombstone values
 "tombstone" "hashtables.private" create
 tuple
-{ } define-tuple-class
+{ "state" } define-tuple-class
 
 "((empty))" "hashtables.private" create
 "tombstone" "hashtables.private" lookup f
@@ -403,116 +297,80 @@ tuple
 2array >tuple 1quotation define-inline
 
 ! Some tuple classes
-"hashtable" "hashtables" create
-tuple
-{
-    {
-        { "array-capacity" "sequences.private" }
-        "count"
-        { "hash-count" "hashtables.private" }
-        { "set-hash-count" "hashtables.private" }
-    } {
-        { "array-capacity" "sequences.private" }
-        "deleted"
-        { "hash-deleted" "hashtables.private" }
-        { "set-hash-deleted" "hashtables.private" }
-    } {
-        { "array" "arrays" }
-        "array"
-        { "hash-array" "hashtables.private" }
-        { "set-hash-array" "hashtables.private" }
-    }
-} define-tuple-class
-
-"sbuf" "sbufs" create
-tuple
-{
-    {
-        { "string" "strings" }
-        "underlying"
-        { "underlying" "growable" }
-        { "set-underlying" "growable" }
-    } {
-        { "array-capacity" "sequences.private" }
-        "length"
-        { "length" "sequences" }
-        { "set-fill" "growable" }
-    }
-} define-tuple-class
-
-"vector" "vectors" create
-tuple
-{
-    {
-        { "array" "arrays" }
-        "underlying"
-        { "underlying" "growable" }
-        { "set-underlying" "growable" }
-    } {
-        { "array-capacity" "sequences.private" }
-        "fill"
-        { "length" "sequences" }
-        { "set-fill" "growable" }
-    }
-} define-tuple-class
-
-"byte-vector" "byte-vectors" create
-tuple
-{
-    {
-        { "byte-array" "byte-arrays" }
-        "underlying"
-        { "underlying" "growable" }
-        { "set-underlying" "growable" }
-    } {
-        { "array-capacity" "sequences.private" }
-        "fill"
-        { "length" "sequences" }
-        { "set-fill" "growable" }
-    }
-} define-tuple-class
-
 "curry" "kernel" create
 tuple
 {
-    {
-        { "object" "kernel" }
-        "obj"
-        { "curry-obj" "kernel" }
-        f
-    } {
-        { "object" "kernel" }
-        "quot"
-        { "curry-quot" "kernel" }
-        f
-    }
-} define-tuple-class
+    { "obj" read-only }
+    { "quot" read-only }
+} prepare-slots define-tuple-class
 
 "curry" "kernel" lookup
-[ f "inline" set-word-prop ]
-[ ]
-[ tuple-layout [ <tuple-boa> ] curry ] tri define
+{
+    [ f "inline" set-word-prop ]
+    [ make-flushable ]
+    [ ]
+    [ tuple-layout [ <tuple-boa> ] curry ]
+} cleave
+(( obj quot -- curry )) define-declared
 
 "compose" "kernel" create
 tuple
 {
-    {
-        { "object" "kernel" }
-        "first"
-        { "compose-first" "kernel" }
-        f
-    } {
-        { "object" "kernel" }
-        "second"
-        { "compose-second" "kernel" }
-        f
-    }
-} define-tuple-class
+    { "first" read-only }
+    { "second" read-only }
+} prepare-slots define-tuple-class
 
 "compose" "kernel" lookup
-[ f "inline" set-word-prop ]
-[ ]
-[ tuple-layout [ <tuple-boa> ] curry ] tri define
+{
+    [ f "inline" set-word-prop ]
+    [ make-flushable ]
+    [ ]
+    [ tuple-layout [ <tuple-boa> ] curry ]
+} cleave
+(( quot1 quot2 -- compose )) define-declared
+
+! Sub-primitive words
+: make-sub-primitive ( word vocab -- )
+    create
+    dup reset-word
+    dup 1quotation define ;
+
+{
+    { "(execute)" "words.private" }
+    { "(call)" "kernel.private" }
+    { "fixnum+fast" "math.private" }
+    { "fixnum-fast" "math.private" }
+    { "fixnum*fast" "math.private" }
+    { "fixnum-bitand" "math.private" }
+    { "fixnum-bitor" "math.private" }
+    { "fixnum-bitxor" "math.private" }
+    { "fixnum-bitnot" "math.private" }
+    { "fixnum<" "math.private" }
+    { "fixnum<=" "math.private" }
+    { "fixnum>" "math.private" }
+    { "fixnum>=" "math.private" }
+    { "drop" "kernel" }
+    { "2drop" "kernel" }
+    { "3drop" "kernel" }
+    { "dup" "kernel" }
+    { "2dup" "kernel" }
+    { "3dup" "kernel" }
+    { "rot" "kernel" }
+    { "-rot" "kernel" }
+    { "dupd" "kernel" }
+    { "swapd" "kernel" }
+    { "nip" "kernel" }
+    { "2nip" "kernel" }
+    { "tuck" "kernel" }
+    { "over" "kernel" }
+    { "pick" "kernel" }
+    { "swap" "kernel" }
+    { ">r" "kernel" }
+    { "r>" "kernel" }
+    { "eq?" "kernel" }
+    { "tag" "kernel.private" }
+    { "slot" "slots.private" }
+} [ make-sub-primitive ] assoc-each
 
 ! Primitive words
 : make-primitive ( word vocab n -- )
@@ -520,8 +378,6 @@ tuple
     [ do-primitive ] curry [ ] like define ;
 
 {
-    { "(execute)" "words.private" }
-    { "(call)" "kernel.private" }
     { "bignum>fixnum" "math.private" }
     { "float>fixnum" "math.private" }
     { "fixnum>bignum" "math.private" }
@@ -537,24 +393,13 @@ tuple
     { "bits>double" "math" }
     { "<complex>" "math.private" }
     { "fixnum+" "math.private" }
-    { "fixnum+fast" "math.private" }
     { "fixnum-" "math.private" }
-    { "fixnum-fast" "math.private" }
     { "fixnum*" "math.private" }
-    { "fixnum*fast" "math.private" }
     { "fixnum/i" "math.private" }
     { "fixnum-mod" "math.private" }
     { "fixnum/mod" "math.private" }
-    { "fixnum-bitand" "math.private" }
-    { "fixnum-bitor" "math.private" }
-    { "fixnum-bitxor" "math.private" }
-    { "fixnum-bitnot" "math.private" }
     { "fixnum-shift" "math.private" }
     { "fixnum-shift-fast" "math.private" }
-    { "fixnum<" "math.private" }
-    { "fixnum<=" "math.private" }
-    { "fixnum>" "math.private" }
-    { "fixnum>=" "math.private" }
     { "bignum=" "math.private" }
     { "bignum+" "math.private" }
     { "bignum-" "math.private" }
@@ -586,25 +431,6 @@ tuple
     { "float>=" "math.private" }
     { "<word>" "words" }
     { "word-xt" "words" }
-    { "drop" "kernel" }
-    { "2drop" "kernel" }
-    { "3drop" "kernel" }
-    { "dup" "kernel" }
-    { "2dup" "kernel" }
-    { "3dup" "kernel" }
-    { "rot" "kernel" }
-    { "-rot" "kernel" }
-    { "dupd" "kernel" }
-    { "swapd" "kernel" }
-    { "nip" "kernel" }
-    { "2nip" "kernel" }
-    { "tuck" "kernel" }
-    { "over" "kernel" }
-    { "pick" "kernel" }
-    { "swap" "kernel" }
-    { ">r" "kernel" }
-    { "r>" "kernel" }
-    { "eq?" "kernel" }
     { "getenv" "kernel.private" }
     { "setenv" "kernel.private" }
     { "(exists?)" "io.files.private" }
@@ -624,13 +450,11 @@ tuple
     { "code-room" "memory" }
     { "os-env" "system" }
     { "millis" "system" }
-    { "tag" "kernel.private" }
     { "modify-code-heap" "compiler.units" }
     { "dlopen" "alien" }
     { "dlsym" "alien" }
     { "dlclose" "alien" }
     { "<byte-array>" "byte-arrays" }
-    { "<bit-array>" "bit-arrays" }
     { "<displaced-alien>" "alien" }
     { "alien-signed-cell" "alien.accessors" }
     { "set-alien-signed-cell" "alien.accessors" }
@@ -660,7 +484,6 @@ tuple
     { "set-alien-cell" "alien.accessors" }
     { "(throw)" "kernel.private" }
     { "alien-address" "alien" }
-    { "slot" "slots.private" }
     { "set-slot" "slots.private" }
     { "string-nth" "strings.private" }
     { "set-string-nth" "strings.private" }
@@ -689,7 +512,6 @@ tuple
     { "profiling" "tools.profiler.private" }
     { "become" "kernel.private" }
     { "(sleep)" "threads.private" }
-    { "<float-array>" "float-arrays" }
     { "<tuple-boa>" "classes.tuple.private" }
     { "callstack>array" "kernel" }
     { "innermost-frame-quot" "kernel.private" }
@@ -701,13 +523,11 @@ tuple
     { "unset-os-env" "system" }
     { "(set-os-envs)" "system.private" }
     { "resize-byte-array" "byte-arrays" }
-    { "resize-bit-array" "bit-arrays" }
-    { "resize-float-array" "float-arrays" }
     { "dll-valid?" "alien" }
     { "unimplemented" "kernel.private" }
     { "gc-reset" "memory" }
 }
-dup length [ >r first2 r> make-primitive ] 2each
+[ >r first2 r> make-primitive ] each-index
 
 ! Bump build number
 "build" "kernel" create build 1+ 1quotation define
diff --git a/core/bootstrap/stage1.factor b/core/bootstrap/stage1.factor
index 64402ca2e1..92558561d2 100755
--- a/core/bootstrap/stage1.factor
+++ b/core/bootstrap/stage1.factor
@@ -1,26 +1,30 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-IN: bootstrap.stage1
 USING: arrays debugger generic hashtables io assocs
 kernel.private kernel math memory namespaces parser
 prettyprint sequences vectors words system splitting
 init io.files bootstrap.image bootstrap.image.private vocabs
 vocabs.loader system debugger continuations ;
-
-{ "resource:core" } vocab-roots set
+IN: bootstrap.stage1
 
 "Bootstrap stage 1..." print flush
 
 "resource:core/bootstrap/primitives.factor" run-file
 
 load-help? off
+{ "resource:core" } vocab-roots set
 
 ! Create a boot quotation for the target
 [
     [
         ! Rehash hashtables, since bootstrap.image creates them
-        ! using the host image's hashing algorithms
-        [ hashtable? ] instances [ rehash ] each
+        ! using the host image's hashing algorithms. We don't
+        ! use each-object here since the catch stack isn't yet
+        ! set up.
+        begin-scan
+        [ hashtable? ] pusher [ (each-object) ] dip
+        end-scan
+        [ rehash ] each
         boot
     ] %
 
@@ -28,28 +32,16 @@ load-help? off
     "math.floats" require
     "memory" require
 
-    ! this must add its init hook before io.backend does
-    "libc" require
-
     "io.streams.c" require
-    "io.thread" require
     "vocabs.loader" require
     
     "syntax" require
     "bootstrap.layouts" require
 
     [
-        "resource:core/bootstrap/stage2.factor"
+        "resource:basis/bootstrap/stage2.factor"
         dup exists? [
-            [ run-file ]
-            [
-                :c
-                dup print-error flush
-                "listener" vocab
-                [ restarts. vocab-main execute ]
-                [ die ] if*
-                1 exit
-            ] recover
+            run-file
         ] [
             "Cannot find " write write "." print
             "Please move " write image write " to the same directory as the Factor sources," print
diff --git a/core/bootstrap/stage2.factor b/core/bootstrap/stage2.factor
deleted file mode 100755
index f94cc0ed37..0000000000
--- a/core/bootstrap/stage2.factor
+++ /dev/null
@@ -1,98 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: init command-line namespaces words debugger io
-kernel.private math memory continuations kernel io.files
-io.backend system parser vocabs sequences prettyprint
-vocabs.loader combinators splitting source-files strings
-definitions assocs compiler.errors compiler.units
-math.parser generic sets ;
-IN: bootstrap.stage2
-
-SYMBOL: bootstrap-time
-
-: default-image-name ( -- string )
-    vm file-name os windows? [ "." split1 drop ] when
-    ".image" append resource-path ;
-
-: do-crossref ( -- )
-    "Cross-referencing..." print flush
-    H{ } clone crossref set-global
-    xref-words
-    xref-generics
-    xref-sources ;
-
-: load-components ( -- )
-    "include" "exclude"
-    [ get-global " " split harvest ] bi@
-    diff
-    [ "bootstrap." prepend require ] each ;
-
-: count-words ( pred -- )
-    all-words swap filter length number>string write ;
-
-: print-report ( time -- )
-    1000 /i
-    60 /mod swap
-    "Bootstrap completed in " write number>string write
-    " minutes and " write number>string write " seconds." print
-
-    [ compiled? ] count-words " compiled words" print
-    [ symbol? ] count-words " symbol words" print
-    [ ] count-words " words total" print
-
-    "Bootstrapping is complete." print
-    "Now, you can run Factor:" print
-    vm write " -i=" write "output-image" get print flush ;
-
-! We time bootstrap
-millis >r
-
-default-image-name "output-image" set-global
-
-"math compiler help random tools ui ui.tools io handbook" "include" set-global
-"" "exclude" set-global
-
-parse-command-line
-
-"-no-crossref" cli-args member? [ do-crossref ] unless
-
-! Set dll paths
-os wince? [ "windows.ce" require ] when
-os winnt? [ "windows.nt" require ] when
-
-"deploy-vocab" get [
-    "stage2: deployment mode" print
-] [
-    "listener" require
-    "none" require
-] if
-
-[
-    load-components
-
-    run-bootstrap-init
-] with-compiler-errors
-:errors
-
-f error set-global
-f error-continuation set-global
-
-"deploy-vocab" get [
-    "tools.deploy.shaker" run
-] [
-    [
-        boot
-        do-init-hooks
-        [
-            parse-command-line
-            run-user-init
-            "run" get run
-            output-stream get [ stream-flush ] when*
-        ] [ print-error 1 exit ] recover
-    ] set-boot-quot
-
-    millis r> - dup bootstrap-time set-global
-    print-report
-
-    "output-image" get save-image-and-exit
-] if
diff --git a/core/bootstrap/syntax.factor b/core/bootstrap/syntax.factor
index d995cc3176..e7dd333ed8 100755
--- a/core/bootstrap/syntax.factor
+++ b/core/bootstrap/syntax.factor
@@ -10,10 +10,10 @@ IN: bootstrap.syntax
     "\""
     "#!"
     "("
+    "(("
     ":"
     ";"
     "<PRIVATE"
-    "?{"
     "BIN:"
     "B{"
     "BV{"
@@ -21,7 +21,6 @@ IN: bootstrap.syntax
     "CHAR:"
     "DEFER:"
     "ERROR:"
-    "F{"
     "FORGET:"
     "GENERIC#"
     "GENERIC:"
@@ -44,6 +43,7 @@ IN: bootstrap.syntax
     "SINGLETON:"
     "SYMBOL:"
     "TUPLE:"
+    "SLOT:"
     "T{"
     "UNION:"
     "INTERSECTION:"
@@ -59,6 +59,7 @@ IN: bootstrap.syntax
     "flushable"
     "foldable"
     "inline"
+    "recursive"
     "parsing"
     "t"
     "{"
@@ -67,6 +68,8 @@ IN: bootstrap.syntax
     "<<"
     ">>"
     "call-next-method"
+    "initial:"
+    "read-only"
 } [ "syntax" create drop ] each
 
 "t" "syntax" lookup define-symbol
diff --git a/core/byte-arrays/byte-arrays-docs.factor b/core/byte-arrays/byte-arrays-docs.factor
index 8a51f4c663..25bff0fce5 100755
--- a/core/byte-arrays/byte-arrays-docs.factor
+++ b/core/byte-arrays/byte-arrays-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax ;
+USING: kernel help.markup help.syntax ;
 IN: byte-arrays
 
 ARTICLE: "byte-arrays" "Byte arrays"
@@ -13,7 +13,13 @@ $nl
 { $subsection byte-array? }
 "There are several ways to construct byte arrays."
 { $subsection >byte-array }
-{ $subsection <byte-array> } ;
+{ $subsection <byte-array> }
+{ $subsection 1byte-array }
+{ $subsection 2byte-array }
+{ $subsection 3byte-array }
+{ $subsection 4byte-array }
+"Resizing byte-arrays:"
+{ $subsection resize-byte-array } ;
 
 ABOUT: "byte-arrays"
 
@@ -29,3 +35,34 @@ HELP: >byte-array
 { $description
   "Outputs a freshly-allocated byte array whose elements have the same signed byte values as a given sequence." }
 { $errors "Throws an error if the sequence contains elements other than integers." } ;
+
+HELP: 1byte-array
+{ $values
+     { "x" object }
+     { "byte-array" byte-array } }
+{ $description "Creates a new byte-array with one element." } ;
+
+HELP: 2byte-array
+{ $values
+     { "x" object } { "y" object }
+     { "byte-array" byte-array } }
+{ $description "Creates a new byte-array with two elements." } ;
+
+HELP: 3byte-array
+{ $values
+     { "x" object } { "y" object } { "z" object }
+     { "byte-array" byte-array } }
+{ $description "Creates a new byte-array with three element." } ;
+
+HELP: 4byte-array
+{ $values
+     { "w" object } { "x" object } { "y" object } { "z" object }
+     { "byte-array" byte-array } }
+{ $description "Creates a new byte-array with four elements." } ;
+
+{ 1byte-array 2byte-array 3byte-array 4byte-array } related-words
+
+HELP: resize-byte-array ( n byte-array -- newbyte-array )
+{ $values { "n" "a non-negative integer" } { "byte-array" byte-array }
+        { "newbyte-array" byte-array } }
+{ $description "Creates a new byte-array of n elements.  The contents of the existing byte-array are copied into the new byte-array; if the new byte-array is shorter, only an initial segment is copied, and if the new byte-array is longer the remaining space is filled in with 0." } ;
diff --git a/core/byte-arrays/byte-arrays.factor b/core/byte-arrays/byte-arrays.factor
index d603470810..50ea4b32ba 100755
--- a/core/byte-arrays/byte-arrays.factor
+++ b/core/byte-arrays/byte-arrays.factor
@@ -1,11 +1,11 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel kernel.private alien.accessors sequences
+USING: accessors kernel kernel.private alien.accessors sequences
 sequences.private math ;
 IN: byte-arrays
 
 M: byte-array clone (clone) ;
-M: byte-array length array-capacity ;
+M: byte-array length length>> ;
 M: byte-array nth-unsafe swap >fixnum alien-unsigned-1 ;
 M: byte-array set-nth-unsafe swap >fixnum set-alien-unsigned-1 ;
 : >byte-array ( seq -- byte-array ) B{ } clone-like ; inline
@@ -19,3 +19,11 @@ M: byte-array resize
     resize-byte-array ;
 
 INSTANCE: byte-array sequence
+
+: 1byte-array ( x -- byte-array ) 1 <byte-array> [ set-first ] keep ; inline
+
+: 2byte-array ( x y -- byte-array ) B{ } 2sequence ; inline
+
+: 3byte-array ( x y z -- byte-array ) B{ } 3sequence ; inline
+
+: 4byte-array ( w x y z -- byte-array ) B{ } 4sequence ; inline
diff --git a/core/byte-vectors/byte-vectors-docs.factor b/core/byte-vectors/byte-vectors-docs.factor
index 139cbab822..3873f73bfe 100755
--- a/core/byte-vectors/byte-vectors-docs.factor
+++ b/core/byte-vectors/byte-vectors-docs.factor
@@ -30,11 +30,6 @@ HELP: >byte-vector
 { $description "Outputs a freshly-allocated byte vector with the same elements as a given sequence." }
 { $errors "Throws an error if the sequence contains elements other than integers." } ;
 
-HELP: byte-array>vector
-{ $values { "byte-array" "an array" } { "length" "a non-negative integer" } { "byte-vector" byte-vector } }
-{ $description "Creates a new byte vector using the array for underlying storage with the specified initial length." }
-{ $warning "This word is in the " { $vocab-link "byte-vectors.private" } " vocabulary because it does not perform type or bounds checks. User code should call " { $link >byte-vector } " instead." } ;
-
 HELP: BV{
 { $syntax "BV{ elements... }" }
 { $values { "elements" "a list of bytes" } }
diff --git a/core/byte-vectors/byte-vectors.factor b/core/byte-vectors/byte-vectors.factor
index e80b797a8d..5d337cb028 100755
--- a/core/byte-vectors/byte-vectors.factor
+++ b/core/byte-vectors/byte-vectors.factor
@@ -4,15 +4,12 @@ USING: arrays kernel kernel.private math sequences
 sequences.private growable byte-arrays ;
 IN: byte-vectors
 
-<PRIVATE
-
-: byte-array>vector ( byte-array length -- byte-vector )
-    byte-vector boa ; inline
-
-PRIVATE>
+TUPLE: byte-vector
+{ underlying byte-array }
+{ length array-capacity } ;
 
 : <byte-vector> ( n -- byte-vector )
-    <byte-array> 0 byte-array>vector ; inline
+    <byte-array> 0 byte-vector boa ; inline
 
 : >byte-vector ( seq -- byte-vector )
     T{ byte-vector f B{ } 0 } clone-like ;
@@ -20,11 +17,11 @@ PRIVATE>
 M: byte-vector like
     drop dup byte-vector? [
         dup byte-array?
-        [ dup length byte-array>vector ] [ >byte-vector ] if
+        [ dup length byte-vector boa ] [ >byte-vector ] if
     ] unless ;
 
 M: byte-vector new-sequence
-    drop [ <byte-array> ] keep >fixnum byte-array>vector ;
+    drop [ <byte-array> ] [ >fixnum ] bi byte-vector boa ;
 
 M: byte-vector equal?
     over byte-vector? [ sequence= ] [ 2drop f ] if ;
diff --git a/core/classes/algebra/algebra-tests.factor b/core/classes/algebra/algebra-tests.factor
index 0b8fb9680b..4558ce4737 100755
--- a/core/classes/algebra/algebra-tests.factor
+++ b/core/classes/algebra/algebra-tests.factor
@@ -3,7 +3,8 @@ kernel math namespaces parser prettyprint sequences strings
 tools.test vectors words quotations classes classes.algebra
 classes.private classes.union classes.mixin classes.predicate
 vectors definitions source-files compiler.units growable
-random inference effects kernel.private sbufs math.order ;
+random stack-checker effects kernel.private sbufs math.order
+classes.tuple accessors ;
 IN: classes.algebra.tests
 
 \ class< must-infer
@@ -12,11 +13,9 @@ IN: classes.algebra.tests
 \ flatten-class must-infer
 \ flatten-builtin-class must-infer
 
-: class= [ class<= ] [ swap class<= ] 2bi and ;
+: class-and* ( cls1 cls2 cls3 -- ? ) >r class-and r> class= ;
 
-: class-and* >r class-and r> class= ;
-
-: class-or* >r class-or r> class= ;
+: class-or* ( cls1 cls2 cls3 -- ? ) >r class-or r> class= ;
 
 [ t ] [ object  object  object class-and* ] unit-test
 [ t ] [ fixnum  object  fixnum class-and* ] unit-test
@@ -193,9 +192,9 @@ UNION: z1 b1 c1 ;
 [ f ] [ null { number fixnum null } min-class ] unit-test
 
 ! Test for hangs?
-: random-class classes random ;
+: random-class ( -- class ) classes random ;
 
-: random-op
+: random-op ( -- word )
     {
         class-and
         class-or
@@ -204,20 +203,20 @@ UNION: z1 b1 c1 ;
 
 10 [
     [ ] [
-        20 [ drop random-op ] map >quotation
-        [ infer effect-in [ random-class ] times ] keep
+        20 [ random-op ] [ ] replicate-as
+        [ infer in>> [ random-class ] times ] keep
         call
         drop
     ] unit-test
 ] times
 
-: random-boolean
+: random-boolean ( -- ? )
     { t f } random ;
 
-: boolean>class
+: boolean>class ( ? -- class )
     object null ? ;
 
-: random-boolean-op
+: random-boolean-op ( -- word )
     {
         and
         or
@@ -225,9 +224,10 @@ UNION: z1 b1 c1 ;
         xor
     } random ;
 
-: class-xor [ class-or ] 2keep class-and class-not class-and ;
+: class-xor ( cls1 cls2 -- cls3 )
+    [ class-or ] 2keep class-and class-not class-and ;
 
-: boolean-op>class-op
+: boolean-op>class-op ( word -- word' )
     {
         { and class-and }
         { or class-or }
@@ -237,8 +237,8 @@ UNION: z1 b1 c1 ;
 
 20 [
     [ t ] [
-        20 [ drop random-boolean-op ] [ ] map-as dup .
-        [ infer effect-in [ drop random-boolean ] map dup . ] keep
+        20 [ random-boolean-op ] [ ] replicate-as dup .
+        [ infer in>> [ random-boolean ] replicate dup . ] keep
         
         [ >r [ ] each r> call ] 2keep
         
@@ -286,6 +286,8 @@ INTERSECTION: generic-class generic class ;
     generic-class flatten-class
 ] unit-test
 
+[ \ + flatten-class ] must-fail
+
 INTERSECTION: empty-intersection ;
 
 [ t ] [ object empty-intersection class<= ] unit-test
@@ -302,3 +304,14 @@ INTERSECTION: empty-intersection ;
 [ t ] [ object \ f class-not \ f class-or class<= ] unit-test
 
 [ ] [ object flatten-builtin-class drop ] unit-test
+
+SINGLETON: sa
+SINGLETON: sb
+SINGLETON: sc
+
+[ sa ] [ sa { sa sb sc } min-class ] unit-test
+
+[ +lt+ ] [ integer sequence class<=> ] unit-test
+[ +lt+ ] [ sequence object class<=> ] unit-test
+[ +gt+ ] [ object sequence class<=> ] unit-test
+[ +eq+ ] [ integer integer class<=> ] unit-test
diff --git a/core/classes/algebra/algebra.factor b/core/classes/algebra/algebra.factor
index a9c1520fc6..b32bac3a18 100755
--- a/core/classes/algebra/algebra.factor
+++ b/core/classes/algebra/algebra.factor
@@ -1,10 +1,22 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel classes classes.builtin combinators accessors
-sequences arrays vectors assocs namespaces words sorting layouts
-math hashtables kernel.private sets math.order ;
+USING: kernel classes combinators accessors sequences arrays
+vectors assocs namespaces words sorting layouts math hashtables
+kernel.private sets math.order ;
 IN: classes.algebra
 
+TUPLE: anonymous-union members ;
+
+C: <anonymous-union> anonymous-union
+
+TUPLE: anonymous-intersection participants ;
+
+C: <anonymous-intersection> anonymous-intersection
+
+TUPLE: anonymous-complement class ;
+
+C: <anonymous-complement> anonymous-complement
+
 : 2cache ( key1 key2 assoc quot -- value )
     >r >r 2array r> [ first2 ] r> compose cache ; inline
 
@@ -18,10 +30,19 @@ DEFER: (class-not)
 : class-not ( class -- complement )
     class-not-cache get [ (class-not) ] cache ;
 
-DEFER: (classes-intersect?) ( first second -- ? )
+GENERIC: (classes-intersect?) ( first second -- ? )
+
+: normalize-class ( class -- class' )
+    {
+        { [ dup members ] [ members <anonymous-union> ] }
+        { [ dup participants ] [ participants <anonymous-intersection> ] }
+        [ ]
+    } cond ;
 
 : classes-intersect? ( first second -- ? )
-    classes-intersect-cache get [ (classes-intersect?) ] 2cache ;
+    classes-intersect-cache get [
+        normalize-class (classes-intersect?)
+    ] 2cache ;
 
 DEFER: (class-and)
 
@@ -33,18 +54,6 @@ DEFER: (class-or)
 : class-or ( first second -- class )
     class-or-cache get [ (class-or) ] 2cache ;
 
-TUPLE: anonymous-union members ;
-
-C: <anonymous-union> anonymous-union
-
-TUPLE: anonymous-intersection participants ;
-
-C: <anonymous-intersection> anonymous-intersection
-
-TUPLE: anonymous-complement class ;
-
-C: <anonymous-complement> anonymous-complement
-
 : superclass<= ( first second -- ? )
     >r superclass r> class<= ;
 
@@ -63,13 +72,6 @@ C: <anonymous-complement> anonymous-complement
 : anonymous-complement<= ( first second -- ? )
     [ class>> ] bi@ swap class<= ;
 
-: normalize-class ( class -- class' )
-    {
-        { [ dup members ] [ members <anonymous-union> ] }
-        { [ dup participants ] [ participants <anonymous-intersection> ] }
-        [ ]
-    } cond ;
-
 : normalize-complement ( class -- class' )
     class>> normalize-class {
         { [ dup anonymous-union? ] [
@@ -116,40 +118,15 @@ PREDICATE: empty-intersection < anonymous-intersection participants>> empty? ;
         } cond
     ] if ;
 
-: anonymous-union-intersect? ( first second -- ? )
+M: anonymous-union (classes-intersect?)
     members>> [ classes-intersect? ] with contains? ;
 
-: anonymous-intersection-intersect? ( first second -- ? )
+M: anonymous-intersection (classes-intersect?)
     participants>> [ classes-intersect? ] with all? ;
 
-: anonymous-complement-intersect? ( first second -- ? )
+M: anonymous-complement (classes-intersect?)
     class>> class<= not ;
 
-: tuple-class-intersect? ( first second -- ? )
-    {
-        { [ over tuple eq? ] [ 2drop t ] }
-        { [ over builtin-class? ] [ 2drop f ] }
-        { [ over tuple-class? ] [ [ class<= ] [ swap class<= ] 2bi or ] }
-        [ swap classes-intersect? ]
-    } cond ;
-
-: builtin-class-intersect? ( first second -- ? )
-    {
-        { [ 2dup eq? ] [ 2drop t ] }
-        { [ over builtin-class? ] [ 2drop f ] }
-        [ swap classes-intersect? ]
-    } cond ;
-
-: (classes-intersect?) ( first second -- ? )
-    normalize-class {
-        { [ dup anonymous-union? ] [ anonymous-union-intersect? ] }
-        { [ dup anonymous-intersection? ] [ anonymous-intersection-intersect? ] }
-        { [ dup anonymous-complement? ] [ anonymous-complement-intersect? ] }
-        { [ dup tuple-class? ] [ tuple-class-intersect? ] }
-        { [ dup builtin-class? ] [ builtin-class-intersect? ] }
-        { [ dup superclass ] [ superclass classes-intersect? ] }
-    } cond ;
-
 : anonymous-union-and ( first second -- class )
     members>> [ class-and ] with map <anonymous-union> ;
 
@@ -209,42 +186,36 @@ PREDICATE: empty-intersection < anonymous-intersection participants>> empty? ;
         [ [ rank-class ] bi@ < ]
     } cond ;
 
+: class<=> ( first second -- ? )
+    {
+        { [ 2dup class<= not ] [ 2drop +gt+ ] }
+        { [ 2dup swap class<= not ] [ 2drop +lt+ ] }
+        [ [ rank-class ] bi@ <=> ]
+    } cond ;
+
+: class= ( first second -- ? )
+    [ class<= ] [ swap class<= ] 2bi and ;
+
 : largest-class ( seq -- n elt )
     dup [ [ class< ] with contains? not ] curry find-last
     [ "Topological sort failed" throw ] unless* ;
 
 : sort-classes ( seq -- newseq )
-    [ [ word-name ] compare ] sort >vector
+    [ [ name>> ] compare ] sort >vector
     [ dup empty? not ]
     [ dup largest-class >r over delete-nth r> ]
-    [ ] unfold nip ;
+    [ ] produce nip ;
 
 : min-class ( class seq -- class/f )
     over [ classes-intersect? ] curry filter
-    dup empty? [ 2drop f ] [
+    [ drop f ] [
         tuck [ class<= ] with all? [ peek ] [ drop f ] if
-    ] if ;
+    ] if-empty ;
 
-DEFER: (flatten-class)
-DEFER: flatten-builtin-class
+GENERIC: (flatten-class) ( class -- )
 
-: flatten-intersection-class ( class -- )
-    participants [ flatten-builtin-class ] map
-    dup empty? [
-        drop builtins get [ (flatten-class) ] each
-    ] [
-        unclip [ assoc-intersect ] reduce [ swap set ] assoc-each
-    ] if ;
-
-: (flatten-class) ( class -- )
-    {
-        { [ dup tuple-class? ] [ dup set ] }
-        { [ dup builtin-class? ] [ dup set ] }
-        { [ dup members ] [ members [ (flatten-class) ] each ] }
-        { [ dup participants ] [ flatten-intersection-class ] }
-        { [ dup superclass ] [ superclass (flatten-class) ] }
-        [ drop ]
-    } cond ;
+M: anonymous-union (flatten-class)
+    members>> [ (flatten-class) ] each ;
 
 : flatten-class ( class -- assoc )
     [ (flatten-class) ] H{ } make-assoc ;
@@ -258,8 +229,11 @@ DEFER: flatten-builtin-class
     flatten-builtin-class keys
     [ "type" word-prop ] map natural-sort ;
 
-: class-tags ( class -- tag/f )
+: class-tags ( class -- seq )
     class-types [
         dup num-tags get >=
         [ drop \ hi-tag tag-number ] when
     ] map prune ;
+
+: class-tag ( class -- tag/f )
+    class-tags dup length 1 = [ first ] [ drop f ] if ;
diff --git a/core/classes/builtin/builtin-tests.factor b/core/classes/builtin/builtin-tests.factor
new file mode 100644
index 0000000000..32db9a3d6e
--- /dev/null
+++ b/core/classes/builtin/builtin-tests.factor
@@ -0,0 +1,10 @@
+IN: classes.builtin.tests
+USING: tools.test words sequences kernel memory accessors ;
+
+[ f ] [
+    [ word? ] instances
+    [
+        [ name>> "f?" = ]
+        [ vocabulary>> "syntax" = ] bi and
+    ] contains?
+] unit-test
diff --git a/core/classes/builtin/builtin.factor b/core/classes/builtin/builtin.factor
index 8e992b852e..ee687c2939 100644
--- a/core/classes/builtin/builtin.factor
+++ b/core/classes/builtin/builtin.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: classes words kernel kernel.private namespaces
-sequences ;
+USING: accessors classes classes.algebra words kernel
+kernel.private namespaces sequences math math.private
+combinators assocs ;
 IN: classes.builtin
 
 SYMBOL: builtins
@@ -11,6 +12,8 @@ PREDICATE: builtin-class < class
 
 : type>class ( n -- class ) builtins get-global nth ;
 
+: class>type ( class -- n ) "type" word-prop ; foldable
+
 : bootstrap-type>class ( n -- class ) builtins get nth ;
 
 M: hi-tag class hi-tag type>class ;
@@ -18,3 +21,34 @@ M: hi-tag class hi-tag type>class ;
 M: object class tag type>class ;
 
 M: builtin-class rank-class drop 0 ;
+
+: builtin-instance? ( object n -- ? )
+    #! 7 == tag-mask get
+    #! 3 == hi-tag tag-number
+    dup 7 fixnum<= [ swap tag eq? ] [
+        swap dup tag 3 eq?
+        [ hi-tag eq? ] [ 2drop f ] if
+    ] if ; inline
+
+M: builtin-class instance?
+    class>type builtin-instance? ;
+
+M: builtin-class (flatten-class) dup set ;
+
+M: builtin-class (classes-intersect?)
+    {
+        { [ 2dup eq? ] [ 2drop t ] }
+        { [ over builtin-class? ] [ 2drop f ] }
+        [ swap classes-intersect? ]
+    } cond ;
+
+M: anonymous-intersection (flatten-class)
+    participants>> [ flatten-builtin-class ] map
+    [
+        builtins get sift [ (flatten-class) ] each
+    ] [
+        unclip [ assoc-intersect ] reduce [ swap set ] assoc-each
+    ] if-empty ;
+
+M: anonymous-complement (flatten-class)
+    drop builtins get sift [ (flatten-class) ] each ;
diff --git a/core/classes/classes-docs.factor b/core/classes/classes-docs.factor
index 9fc4f6c4e7..ff7aac36d3 100755
--- a/core/classes/classes-docs.factor
+++ b/core/classes/classes-docs.factor
@@ -1,5 +1,5 @@
 USING: help.markup help.syntax kernel kernel.private
-namespaces sequences words arrays layouts help effects math
+namespaces sequences words arrays layouts effects math
 layouts classes.private classes.union classes.mixin
 classes.predicate quotations ;
 IN: classes
@@ -28,10 +28,14 @@ $nl
 $nl
 "Classes themselves form a class:"
 { $subsection class? }
-"You can ask an object for its class:"
+"You can ask an object for its class or superclass:"
 { $subsection class }
+{ $subsection superclass }
+{ $subsection superclasses }
 "Testing if an object is an instance of a class:"
 { $subsection instance? }
+"Class predicates can be used to test instances directly:"
+{ $subsection "class-predicates" }
 "There is a universal class which all objects are an instance of, and an empty class with no instances:"
 { $subsection object }
 { $subsection null }
@@ -63,12 +67,8 @@ HELP: classes
 { $values { "seq" "a sequence of class words" } }
 { $description "Finds all class words in the dictionary." } ;
 
-HELP: tuple-class
-{ $class-description "The class of tuple class words." }
-{ $examples { $example "USING: classes prettyprint ;" "IN: scratchpad" "TUPLE: name title first last ;" "name tuple-class? ." "t" } } ;
-
 HELP: update-map
-{ $var-description "Hashtable mapping each class to a set of classes defined in terms of this class. The " { $link define-class } " word uses this information to update generic words when classes are redefined." } ;
+{ $var-description "Assoc mapping each class to a set of classes defined in terms of this class. The " { $link define-class } " word uses this information to update generic words when classes are redefined." } ;
 
 HELP: predicate-word
 { $values { "word" "a word" } { "predicate" "a predicate word" } }
@@ -81,7 +81,27 @@ $low-level-note ;
 
 HELP: superclass
 { $values { "class" class } { "super" class } }
-{ $description "Outputs the superclass of a class. All instances of this class are also instances of the superclass." } ;
+{ $description "Outputs the superclass of a class. All instances of this class are also instances of the superclass." }
+{ $examples 
+    { $example "USING: classes prettyprint ;"
+               "t superclass ."
+               "word"
+    }
+} ;
+
+HELP: superclasses
+{ $values
+     { "class" class }
+     { "supers" sequence } }
+{ $description "Outputs a sequence of superclasses of a class along with the class itself." }
+{ $examples 
+    { $example "USING: classes prettyprint ;"
+               "t superclasses ."
+               "{ word t }"
+    }
+} ;
+
+{ superclass superclasses } related-words
 
 HELP: members
 { $values { "class" class } { "seq" "a sequence of union members, or " { $link f } } }
@@ -95,3 +115,13 @@ HELP: define-class
 { $values { "word" word } { "superclass" class } { "members" "a sequence of class words" } { "participants" "a sequence of class words" } { "metaclass" class } }
 { $description "Sets a property indicating this word is a class word, thus making it an instance of " { $link class } ", and registers it with " { $link update-map } "." }
 $low-level-note ;
+
+HELP: implementors
+{ $values { "class/classes" "a class or a sequence of classes" } { "seq" "a sequence of generic words" } }
+{ $description "Finds all generic words in the dictionary implementing methods for the given set of classes." } ;
+
+HELP: instance?
+{ $values
+     { "object" object } { "class" class }
+     { "?" "a boolean" } }
+{ $description "Tests whether the input object is a member of the class." } ;
diff --git a/core/classes/classes-tests.factor b/core/classes/classes-tests.factor
index eb55b5fccd..1dee6a095c 100755
--- a/core/classes/classes-tests.factor
+++ b/core/classes/classes-tests.factor
@@ -3,157 +3,9 @@ kernel math namespaces parser prettyprint sequences strings
 tools.test vectors words quotations classes
 classes.private classes.union classes.mixin classes.predicate
 classes.algebra vectors definitions source-files
-compiler.units kernel.private ;
+compiler.units kernel.private sorting vocabs ;
 IN: classes.tests
 
-! DEFER: bah
-! FORGET: bah
-UNION: bah fixnum alien ;
-[ bah ] [ \ bah? "predicating" word-prop ] unit-test
-
-! Test redefinition of classes
-UNION: union-1 fixnum float ;
-
-GENERIC: generic-update-test ( x -- y )
-
-M: union-1 generic-update-test drop "union-1" ;
-
-[ f ] [ bignum union-1 class<= ] unit-test
-[ t ] [ union-1 number class<= ] unit-test
-[ "union-1" ] [ 1.0 generic-update-test ] unit-test
-
-"IN: classes.tests USE: math USE: arrays UNION: union-1 rational array ;" eval
-
-[ t ] [ bignum union-1 class<= ] unit-test
-[ f ] [ union-1 number class<= ] unit-test
-[ "union-1" ] [ { 1.0 } generic-update-test ] unit-test
-
-"IN: classes.tests USE: math PREDICATE: union-1 < integer even? ;" eval
-
-[ f ] [ union-1 union-class? ] unit-test
-[ t ] [ union-1 predicate-class? ] unit-test
-[ "union-1" ] [ 8 generic-update-test ] unit-test
-[ -7 generic-update-test ] must-fail
-
-! Test mixins
-MIXIN: sequence-mixin
-
-INSTANCE: array sequence-mixin
-INSTANCE: vector sequence-mixin
-INSTANCE: slice sequence-mixin
-
-MIXIN: assoc-mixin
-
-INSTANCE: hashtable assoc-mixin
-
-GENERIC: collection-size ( x -- y )
-
-M: sequence-mixin collection-size length ;
-
-M: assoc-mixin collection-size assoc-size ;
-
-[ t ] [ array sequence-mixin class<= ] unit-test
-[ t ] [ { 1 2 3 } sequence-mixin? ] unit-test
-[ 3 ] [ { 1 2 3 } collection-size ] unit-test
-[ f ] [ H{ { 1 2 } { 2 3 } } sequence-mixin? ] unit-test
-[ t ] [ H{ { 1 2 } { 2 3 } } assoc-mixin? ] unit-test
-[ 2 ] [ H{ { 1 2 } { 2 3 } } collection-size ] unit-test
-
-! Test mixing in of new classes after the fact
-DEFER: mx1
-FORGET: mx1
-
-MIXIN: mx1
-
-INSTANCE: integer mx1
-
-[ t ] [ integer mx1 class<= ] unit-test
-[ t ] [ mx1 integer class<= ] unit-test
-[ t ] [ mx1 number class<= ] unit-test
-
-"IN: classes.tests USE: arrays INSTANCE: array mx1" eval
-
-[ t ] [ array mx1 class<= ] unit-test
-[ f ] [ mx1 number class<= ] unit-test
-
-[ \ mx1 forget ] with-compilation-unit
-
-! Empty unions were causing problems
-GENERIC: empty-union-test
-
-UNION: empty-union-1 ;
-
-M: empty-union-1 empty-union-test ;
-
-UNION: empty-union-2 ;
-
-M: empty-union-2 empty-union-test ;
-
-! Redefining a class didn't update containing unions
-UNION: redefine-bug-1 fixnum ;
-
-UNION: redefine-bug-2 redefine-bug-1 quotation ;
-
-[ t ] [ fixnum redefine-bug-2 class<= ] unit-test
-[ t ] [ quotation redefine-bug-2 class<= ] unit-test
-
-[ ] [ "IN: classes.tests USE: math UNION: redefine-bug-1 bignum ;" eval ] unit-test
-
-[ t ] [ bignum redefine-bug-1 class<= ] unit-test
-[ f ] [ fixnum redefine-bug-2 class<= ] unit-test
-[ t ] [ bignum redefine-bug-2 class<= ] unit-test
-
-USE: io.streams.string
-
-2 [
-    [ "mixin-forget-test" forget-source ] with-compilation-unit
-    
-    [ ] [
-        {
-            "USING: sequences ;"
-            "IN: classes.tests"
-            "MIXIN: mixin-forget-test"
-            "INSTANCE: sequence mixin-forget-test"
-            "GENERIC: mixin-forget-test-g ( x -- y )"
-            "M: mixin-forget-test mixin-forget-test-g ;"
-        } "\n" join <string-reader> "mixin-forget-test"
-        parse-stream drop
-    ] unit-test
-    
-    [ { } ] [ { } "mixin-forget-test-g" "classes.tests" lookup execute ] unit-test
-    [ H{ } "mixin-forget-test-g" "classes.tests" lookup execute ] must-fail
-    
-    [ ] [
-        {
-            "USING: hashtables ;"
-            "IN: classes.tests"
-            "MIXIN: mixin-forget-test"
-            "INSTANCE: hashtable mixin-forget-test"
-            "GENERIC: mixin-forget-test-g ( x -- y )"
-            "M: mixin-forget-test mixin-forget-test-g ;"
-        } "\n" join <string-reader> "mixin-forget-test"
-        parse-stream drop
-    ] unit-test
-    
-    [ { } "mixin-forget-test-g" "classes.tests" lookup execute ] must-fail
-    [ H{ } ] [ H{ } "mixin-forget-test-g" "classes.tests" lookup execute ] unit-test
-] times
-
-! Method flattening interfered with mixin update
-MIXIN: flat-mx-1
-TUPLE: flat-mx-1-1 ; INSTANCE: flat-mx-1-1 flat-mx-1
-TUPLE: flat-mx-1-2 ; INSTANCE: flat-mx-1-2 flat-mx-1
-TUPLE: flat-mx-1-3 ; INSTANCE: flat-mx-1-3 flat-mx-1
-TUPLE: flat-mx-1-4 ; INSTANCE: flat-mx-1-4 flat-mx-1
-MIXIN: flat-mx-2     INSTANCE: flat-mx-2 flat-mx-1
-TUPLE: flat-mx-2-1 ; INSTANCE: flat-mx-2-1 flat-mx-2
-
-[ t ] [ T{ flat-mx-2-1 } flat-mx-1? ] unit-test
-
-! Test generic see and parsing
-[ "USING: alien math ;\nIN: classes.tests\nUNION: bah fixnum alien ;\n" ]
-[ [ \ bah see ] with-string-writer ] unit-test
-
 [ t ] [ 3 object instance? ] unit-test
 [ t ] [ 3 fixnum instance? ] unit-test
 [ f ] [ 3 float instance? ] unit-test
@@ -162,10 +14,16 @@ TUPLE: flat-mx-2-1 ; INSTANCE: flat-mx-2-1 flat-mx-2
 [ t ] [ "hi" \ hi-tag instance? ] unit-test
 
 ! Regression
-GENERIC: method-forget-test
+GENERIC: method-forget-test ( obj -- obj )
 TUPLE: method-forget-class ;
 M: method-forget-class method-forget-test ;
 
 [ f ] [ \ method-forget-test "methods" word-prop assoc-empty? ] unit-test
 [ ] [ [ \ method-forget-class forget ] with-compilation-unit ] unit-test
 [ t ] [ \ method-forget-test "methods" word-prop assoc-empty? ] unit-test
+
+[ t ] [
+    all-words [ class? ] filter
+    implementors-map get keys
+    [ natural-sort ] bi@ =
+] unit-test
diff --git a/core/classes/classes.factor b/core/classes/classes.factor
index 2c9e1d4787..5ec96bbbb0 100755
--- a/core/classes/classes.factor
+++ b/core/classes/classes.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions assocs kernel kernel.private
+USING: accessors arrays definitions assocs kernel kernel.private
 slots.private namespaces sequences strings words vectors math
-quotations combinators sorting effects graphs vocabs ;
+quotations combinators sorting effects graphs vocabs sets ;
 IN: classes
 
 SYMBOL: class<=-cache
@@ -27,24 +27,21 @@ SYMBOL: class-or-cache
 
 SYMBOL: update-map
 
+SYMBOL: implementors-map
+
 PREDICATE: class < word
     "class" word-prop ;
 
-PREDICATE: tuple-class < class
-    "metaclass" word-prop tuple-class eq? ;
-
-: classes ( -- seq ) all-words [ class? ] filter ;
+: classes ( -- seq ) implementors-map get keys ;
 
 : predicate-word ( word -- predicate )
-    [ word-name "?" append ] keep word-vocabulary create ;
-
-: predicate-effect 1 { "?" } <effect> ;
+    [ name>> "?" append ] [ vocabulary>> ] bi create ;
 
 PREDICATE: predicate < word "predicating" word-prop >boolean ;
 
 : define-predicate ( class quot -- )
     >r "predicate" word-prop first
-    r> predicate-effect define-declared ;
+    r> (( object -- ? )) define-declared ;
 
 : superclass ( class -- super )
     #! Output f for non-classes to work with algebra code
@@ -65,9 +62,19 @@ GENERIC: rank-class ( class -- n )
 
 GENERIC: reset-class ( class -- )
 
+M: class reset-class
+    {
+        "class"
+        "metaclass"
+        "superclass"
+        "members"
+        "participants"
+        "predicate"
+    } reset-props ;
+
 M: word reset-class drop ;
 
-<PRIVATE
+GENERIC: implementors ( class/classes -- seq )
 
 ! update-map
 : class-uses ( class -- seq )
@@ -78,8 +85,11 @@ M: word reset-class drop ;
         tri
     ] { } make ;
 
-: class-usages ( class -- assoc )
-    [ update-map get at ] closure ;
+: class-usage ( class -- seq ) update-map get at ;
+
+: class-usages ( class -- seq ) [ class-usage ] closure keys ;
+
+<PRIVATE
 
 : update-map+ ( class -- )
     dup class-uses update-map get add-vertex ;
@@ -87,6 +97,16 @@ M: word reset-class drop ;
 : update-map- ( class -- )
     dup class-uses update-map get remove-vertex ;
 
+M: class implementors implementors-map get at keys ;
+
+M: sequence implementors [ implementors ] gather ;
+
+: implementors-map+ ( class -- )
+    H{ } clone swap implementors-map get set-at ;
+
+: implementors-map- ( class -- )
+    implementors-map get delete-at ;
+
 : make-class-props ( superclass members participants metaclass -- assoc )
     [
         {
@@ -99,10 +119,12 @@ M: word reset-class drop ;
 
 : (define-class) ( word props -- )
     >r
+    dup class? [ dup [ implementors-map+ ] [ new-class ] bi ] unless
     dup reset-class
     dup deferred? [ dup define-symbol ] when
-    dup word-props
-    r> assoc-union over set-word-props
+    dup redefined
+    dup props>>
+    r> assoc-union >>props
     dup predicate-word
     [ 1quotation "predicate" set-word-prop ]
     [ swap "predicating" set-word-prop ]
@@ -115,13 +137,11 @@ GENERIC: update-class ( class -- )
 
 M: class update-class drop ;
 
-GENERIC: update-methods ( assoc -- )
+GENERIC: update-methods ( class seq -- )
 
 : update-classes ( class -- )
-    class-usages
-    [ [ drop update-class ] assoc-each ]
-    [ update-methods ]
-    bi ;
+    dup class-usages
+    [ nip [ update-class ] each ] [ update-methods ] 2bi ;
 
 : define-class ( word superclass members participants metaclass -- )
     #! If it was already a class, update methods after.
@@ -132,7 +152,35 @@ GENERIC: update-methods ( assoc -- )
     [ drop update-map+ ]
     2tri ;
 
+: forget-predicate ( class -- )
+    dup "predicate" word-prop
+    dup length 1 = [
+        first
+        tuck "predicating" word-prop =
+        [ forget ] [ drop ] if
+    ] [ 2drop ] if ;
+
+: forget-methods ( class -- )
+    [ implementors ] [ [ swap 2array ] curry ] bi map forget-all ;
+
+GENERIC: class-forgotten ( use class -- )
+
+: forget-class ( class -- )
+    {
+        [ dup class-usage keys [ class-forgotten ] with each ]
+        [ forget-predicate ]
+        [ forget-methods ]
+        [ implementors-map- ]
+        [ update-map- ]
+        [ reset-class ]
+    } cleave ;
+
+M: class class-forgotten
+    nip forget-class ;
+
+M: class forget* ( class -- )
+    [ call-next-method ] [ forget-class ] bi ;
+
 GENERIC: class ( object -- class )
 
-: instance? ( obj class -- ? )
-    "predicate" word-prop call ;
+GENERIC: instance? ( object class -- ? ) flushable
diff --git a/core/classes/intersection/intersection.factor b/core/classes/intersection/intersection.factor
index 7ea8e24f0a..55831fcdb4 100644
--- a/core/classes/intersection/intersection.factor
+++ b/core/classes/intersection/intersection.factor
@@ -1,21 +1,21 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: words sequences kernel assocs combinators classes
-namespaces arrays math quotations ;
+classes.algebra classes.builtin namespaces arrays math quotations ;
 IN: classes.intersection
 
 PREDICATE: intersection-class < class
     "metaclass" word-prop intersection-class eq? ;
 
 : intersection-predicate-quot ( members -- quot )
-    dup empty? [
-        drop [ drop t ]
+    [
+        [ drop t ]
     ] [
         unclip "predicate" word-prop swap [
             "predicate" word-prop [ dup ] swap [ not ] 3append
             [ drop f ]
         ] { } map>assoc alist>quot
-    ] if ;
+    ] if-empty ;
 
 : define-intersection-predicate ( class -- )
     dup participants intersection-predicate-quot define-predicate ;
@@ -27,7 +27,10 @@ M: intersection-class update-class define-intersection-predicate ;
     [ drop update-classes ]
     2bi ;
 
-M: intersection-class reset-class
-    { "class" "metaclass" "participants" } reset-props ;
-
 M: intersection-class rank-class drop 2 ;
+
+M: intersection-class instance?
+    "participants" word-prop [ instance? ] with all? ;
+
+M: intersection-class (flatten-class)
+    participants <anonymous-intersection> (flatten-class) ;
diff --git a/core/classes/mixin/mixin-tests.factor b/core/classes/mixin/mixin-tests.factor
new file mode 100644
index 0000000000..9a372e633e
--- /dev/null
+++ b/core/classes/mixin/mixin-tests.factor
@@ -0,0 +1,111 @@
+USING: alien arrays definitions generic assocs hashtables io
+kernel math namespaces parser prettyprint sequences strings
+tools.test vectors words quotations classes
+classes.private classes.union classes.mixin classes.predicate
+classes.algebra vectors definitions source-files
+compiler.units kernel.private sorting vocabs eval ;
+IN: classes.mixin.tests
+
+! Test mixins
+MIXIN: sequence-mixin
+
+INSTANCE: array sequence-mixin
+INSTANCE: vector sequence-mixin
+INSTANCE: slice sequence-mixin
+
+MIXIN: assoc-mixin
+
+INSTANCE: hashtable assoc-mixin
+
+GENERIC: collection-size ( x -- y )
+
+M: sequence-mixin collection-size length ;
+
+M: assoc-mixin collection-size assoc-size ;
+
+[ t ] [ array sequence-mixin class<= ] unit-test
+[ t ] [ { 1 2 3 } sequence-mixin? ] unit-test
+[ 3 ] [ { 1 2 3 } collection-size ] unit-test
+[ f ] [ H{ { 1 2 } { 2 3 } } sequence-mixin? ] unit-test
+[ t ] [ H{ { 1 2 } { 2 3 } } assoc-mixin? ] unit-test
+[ 2 ] [ H{ { 1 2 } { 2 3 } } collection-size ] unit-test
+
+! Test mixing in of new classes after the fact
+DEFER: mx1
+FORGET: mx1
+
+MIXIN: mx1
+
+INSTANCE: integer mx1
+
+[ t ] [ integer mx1 class<= ] unit-test
+[ t ] [ mx1 integer class<= ] unit-test
+[ t ] [ mx1 number class<= ] unit-test
+
+"IN: classes.mixin.tests USE: arrays INSTANCE: array mx1" eval
+
+[ t ] [ array mx1 class<= ] unit-test
+[ f ] [ mx1 number class<= ] unit-test
+
+[ \ mx1 forget ] with-compilation-unit
+
+USE: io.streams.string
+
+2 [
+    [ "mixin-forget-test" forget-source ] with-compilation-unit
+    
+    [ ] [
+        {
+            "USING: sequences ;"
+            "IN: classes.mixin.tests"
+            "MIXIN: mixin-forget-test"
+            "INSTANCE: sequence mixin-forget-test"
+            "GENERIC: mixin-forget-test-g ( x -- y )"
+            "M: mixin-forget-test mixin-forget-test-g ;"
+        } "\n" join <string-reader> "mixin-forget-test"
+        parse-stream drop
+    ] unit-test
+    
+    [ { } ] [ { } "mixin-forget-test-g" "classes.mixin.tests" lookup execute ] unit-test
+    [ H{ } "mixin-forget-test-g" "classes.mixin.tests" lookup execute ] must-fail
+    
+    [ ] [
+        {
+            "USING: hashtables ;"
+            "IN: classes.mixin.tests"
+            "MIXIN: mixin-forget-test"
+            "INSTANCE: hashtable mixin-forget-test"
+            "GENERIC: mixin-forget-test-g ( x -- y )"
+            "M: mixin-forget-test mixin-forget-test-g ;"
+        } "\n" join <string-reader> "mixin-forget-test"
+        parse-stream drop
+    ] unit-test
+    
+    [ { } "mixin-forget-test-g" "classes.mixin.tests" lookup execute ] must-fail
+    [ H{ } ] [ H{ } "mixin-forget-test-g" "classes.mixin.tests" lookup execute ] unit-test
+] times
+
+! Method flattening interfered with mixin update
+MIXIN: flat-mx-1
+TUPLE: flat-mx-1-1 ; INSTANCE: flat-mx-1-1 flat-mx-1
+TUPLE: flat-mx-1-2 ; INSTANCE: flat-mx-1-2 flat-mx-1
+TUPLE: flat-mx-1-3 ; INSTANCE: flat-mx-1-3 flat-mx-1
+TUPLE: flat-mx-1-4 ; INSTANCE: flat-mx-1-4 flat-mx-1
+MIXIN: flat-mx-2     INSTANCE: flat-mx-2 flat-mx-1
+TUPLE: flat-mx-2-1 ; INSTANCE: flat-mx-2-1 flat-mx-2
+
+[ t ] [ T{ flat-mx-2-1 } flat-mx-1? ] unit-test
+
+! Too eager with reset-class
+
+[ ] [ "IN: classes.mixin.tests MIXIN: blah SINGLETON: boo INSTANCE: boo blah" <string-reader> "mixin-reset-test" parse-stream drop ] unit-test
+
+[ t ] [ "blah" "classes.mixin.tests" lookup mixin-class? ] unit-test
+
+[ ] [ "IN: classes.mixin.tests MIXIN: blah" <string-reader> "mixin-reset-test" parse-stream drop ] unit-test
+
+[ t ] [ "blah" "classes.mixin.tests" lookup mixin-class? ] unit-test
+
+MIXIN: empty-mixin
+
+[ f ] [ "hi" empty-mixin? ] unit-test
diff --git a/core/classes/mixin/mixin.factor b/core/classes/mixin/mixin.factor
index 6f888ceca1..d569103d97 100755
--- a/core/classes/mixin/mixin.factor
+++ b/core/classes/mixin/mixin.factor
@@ -1,25 +1,28 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: classes classes.union words kernel sequences
-definitions combinators arrays accessors ;
+definitions combinators arrays assocs generic accessors ;
 IN: classes.mixin
 
 PREDICATE: mixin-class < union-class "mixin" word-prop ;
 
 M: mixin-class reset-class
-    { "class" "metaclass" "members" "mixin" } reset-props ;
+    [ call-next-method ] [ { "mixin" } reset-props ] bi ;
 
 M: mixin-class rank-class drop 3 ;
 
 : redefine-mixin-class ( class members -- )
-    dupd define-union-class
-    t "mixin" set-word-prop ;
+    [ (define-union-class) ]
+    [ drop t "mixin" set-word-prop ]
+    2bi ;
 
 : define-mixin-class ( class -- )
     dup mixin-class? [
         drop
     ] [
-        { } redefine-mixin-class
+        [ { } redefine-mixin-class ]
+        [ update-classes ]
+        bi
     ] if ;
 
 TUPLE: check-mixin-class mixin ;
@@ -30,17 +33,46 @@ TUPLE: check-mixin-class mixin ;
     ] unless ;
 
 : if-mixin-member? ( class mixin true false -- )
-    >r >r check-mixin-class 2dup members memq? r> r> if ; inline
+    [ check-mixin-class 2dup members memq? ] 2dip if ; inline
 
 : change-mixin-class ( class mixin quot -- )
-    [ members swap bootstrap-word ] prepose keep
+    [ [ members swap bootstrap-word ] dip call ] [ drop ] 2bi
     swap redefine-mixin-class ; inline
 
+: update-classes/new ( mixin -- )
+    class-usages
+    [ [ update-class ] each ]
+    [ implementors [ make-generic ] each ] bi ;
+
 : add-mixin-instance ( class mixin -- )
-    [ 2drop ] [ [ suffix ] change-mixin-class ] if-mixin-member? ;
+    #! Note: we call update-classes on the new member, not the
+    #! mixin. This ensures that we only have to update the
+    #! methods whose specializer intersects the new member, not
+    #! the entire mixin (since the other mixin members are not
+    #! affected at all). Also, all usages of the mixin will get
+    #! updated by transitivity; the mixins usages appear in
+    #! class-usages of the member, now that it's been added.
+    [ 2drop ] [
+        [ [ suffix ] change-mixin-class ] 2keep
+        tuck [ new-class? ] either? [
+            update-classes/new
+        ] [
+            update-classes
+        ] if
+    ] if-mixin-member? ;
 
 : remove-mixin-instance ( class mixin -- )
-    [ [ swap remove ] change-mixin-class ] [ 2drop ] if-mixin-member? ;
+    #! The order of the three clauses is important here. The last
+    #! one must come after the other two so that the entries it
+    #! adds to changed-generics are not overwritten.
+    [
+        [ [ swap remove ] change-mixin-class ]
+        [ nip update-classes ]
+        [ class-usages update-methods ]
+        2tri
+    ] [ 2drop ] if-mixin-member? ;
+
+M: mixin-class class-forgotten remove-mixin-instance ;
 
 ! Definition protocol implementation ensures that removing an
 ! INSTANCE: declaration from a source file updates the mixin.
@@ -49,8 +81,8 @@ TUPLE: mixin-instance loc class mixin ;
 M: mixin-instance equal?
     {
         { [ over mixin-instance? not ] [ f ] }
-        { [ 2dup [ mixin-instance-class ] bi@ = not ] [ f ] }
-        { [ 2dup [ mixin-instance-mixin ] bi@ = not ] [ f ] }
+        { [ 2dup [ class>> ] bi@ = not ] [ f ] }
+        { [ 2dup [ mixin>> ] bi@ = not ] [ f ] }
         [ t ]
     } cond 2nip ;
 
@@ -58,18 +90,18 @@ M: mixin-instance hashcode*
     [ class>> ] [ mixin>> ] bi 2array hashcode* ;
 
 : <mixin-instance> ( class mixin -- definition )
-    { set-mixin-instance-class set-mixin-instance-mixin }
-    mixin-instance construct ;
+    mixin-instance new
+        swap >>mixin
+        swap >>class ;
 
-M: mixin-instance where mixin-instance-loc ;
+M: mixin-instance where loc>> ;
 
-M: mixin-instance set-where set-mixin-instance-loc ;
+M: mixin-instance set-where (>>loc) ;
 
 M: mixin-instance definer drop \ INSTANCE: f ;
 
 M: mixin-instance definition drop f ;
 
 M: mixin-instance forget*
-    dup mixin-instance-class
-    swap mixin-instance-mixin dup mixin-class?
-    [ remove-mixin-instance ] [ 2drop ] if ;
+    [ class>> ] [ mixin>> ] bi
+    dup mixin-class? [ remove-mixin-instance ] [ 2drop ] if ;
diff --git a/core/classes/parser/parser.factor b/core/classes/parser/parser.factor
new file mode 100644
index 0000000000..17a7b23552
--- /dev/null
+++ b/core/classes/parser/parser.factor
@@ -0,0 +1,15 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: parser words kernel classes compiler.units lexer ;
+IN: classes.parser
+
+: save-class-location ( class -- )
+    location remember-class ;
+
+: create-class-in ( word -- word )
+    current-vocab create
+    dup save-class-location
+    dup predicate-word dup set-word save-location ;
+
+: CREATE-CLASS ( -- word )
+    scan create-class-in ;
diff --git a/core/classes/predicate/predicate.factor b/core/classes/predicate/predicate.factor
index c8de36582e..e6d6b5a0d4 100755
--- a/core/classes/predicate/predicate.factor
+++ b/core/classes/predicate/predicate.factor
@@ -1,11 +1,27 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: classes kernel namespaces words ;
+USING: classes classes.algebra kernel namespaces words sequences
+quotations arrays kernel.private assocs combinators ;
 IN: classes.predicate
 
 PREDICATE: predicate-class < class
     "metaclass" word-prop predicate-class eq? ;
 
+DEFER: predicate-instance? ( object class -- ? )
+
+: update-predicate-instance ( -- )
+    \ predicate-instance? bootstrap-word
+    classes [ predicate-class? ] filter [
+        [ literalize ]
+        [
+            [ superclass 1array [ declare ] curry ]
+            [ "predicate-definition" word-prop ]
+            bi compose
+        ]
+        bi
+    ] { } map>assoc [ case ] curry
+    define ;
+
 : predicate-quot ( class -- quot )
     [
         \ dup ,
@@ -21,14 +37,23 @@ PREDICATE: predicate-class < class
         [ dup predicate-quot define-predicate ]
         [ update-classes ]
         bi
-    ] 3tri ;
+    ]
+    3tri
+    update-predicate-instance ;
 
 M: predicate-class reset-class
-    {
-        "class"
-        "metaclass"
-        "predicate-definition"
-        "superclass"
-    } reset-props ;
+    [ call-next-method ]
+    [ { "predicate-definition" } reset-props ]
+    bi ;
 
 M: predicate-class rank-class drop 1 ;
+
+M: predicate-class instance?
+    2dup superclass instance?
+    [ predicate-instance? ] [ 2drop f ] if ;
+
+M: predicate-class (flatten-class)
+    superclass (flatten-class) ;
+
+M: predicate-class (classes-intersect?)
+    superclass classes-intersect? ;
diff --git a/core/classes/singleton/singleton.factor b/core/classes/singleton/singleton.factor
index 65d7422ed7..1d370c1859 100755
--- a/core/classes/singleton/singleton.factor
+++ b/core/classes/singleton/singleton.factor
@@ -1,6 +1,7 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: classes.predicate kernel sequences words ;
+USING: classes classes.algebra classes.predicate kernel
+sequences words ;
 IN: classes.singleton
 
 PREDICATE: singleton-class < predicate-class
@@ -9,3 +10,8 @@ PREDICATE: singleton-class < predicate-class
 
 : define-singleton-class ( word -- )
     \ word over [ eq? ] curry define-predicate-class ;
+
+M: singleton-class instance? eq? ;
+
+M: singleton-class (classes-intersect?)
+    over singleton-class? [ eq? ] [ call-next-method ] if ;
diff --git a/core/classes/tuple/parser/parser-docs.factor b/core/classes/tuple/parser/parser-docs.factor
new file mode 100644
index 0000000000..f4ecb1461e
--- /dev/null
+++ b/core/classes/tuple/parser/parser-docs.factor
@@ -0,0 +1,14 @@
+IN: classes.tuple.parser
+USING: strings help.markup help.syntax ;
+
+HELP: invalid-slot-name
+{ $values { "name" string } }
+{ $description "Throws an " { $link invalid-slot-name } " error." }
+{ $error-description "Thrown by " { $link POSTPONE: TUPLE: } " and " { $link POSTPONE: ERROR: } " if a suspect token appears as a slot name." }
+{ $notes "The suspect tokens are chosen so that the following code raises this parse error, instead of silently greating a tuple with garbage slots:"
+    { $code
+        "TUPLE: my-mistaken-tuple slot-a slot-b"
+        ""
+        ": some-word ( a b c -- ) ... ;"
+    }
+} ;
diff --git a/core/classes/tuple/parser/parser-tests.factor b/core/classes/tuple/parser/parser-tests.factor
new file mode 100644
index 0000000000..17376a594f
--- /dev/null
+++ b/core/classes/tuple/parser/parser-tests.factor
@@ -0,0 +1,98 @@
+IN: classes.tuple.parser.tests
+USING: accessors classes.tuple.parser lexer words classes
+sequences math kernel slots tools.test parser compiler.units
+arrays classes.tuple eval ;
+
+TUPLE: test-1 ;
+
+[ t ] [ test-1 "slots" word-prop empty? ] unit-test
+
+TUPLE: test-2 < test-1 ;
+
+[ t ] [ test-2 "slots" word-prop empty? ] unit-test
+[ test-1 ] [ test-2 superclass ] unit-test
+
+TUPLE: test-3 a ;
+
+[ { "a" } ] [ test-3 "slots" word-prop [ name>> ] map ] unit-test
+
+[ object ] [ "a" test-3 "slots" word-prop slot-named class>> ] unit-test
+
+TUPLE: test-4 < test-3 b ;
+
+[ { "b" } ] [ test-4 "slots" word-prop [ name>> ] map ] unit-test
+
+TUPLE: test-5 { a integer } ;
+
+[ { { "a" integer } } ]
+[
+    test-5 "slots" word-prop
+    [ [ name>> ] [ class>> ] bi 2array ] map
+] unit-test
+
+TUPLE: test-6 < test-5 { b integer } ;
+
+[ integer ] [ "b" test-6 "slots" word-prop slot-named class>> ] unit-test
+
+[ { { "b" integer } } ]
+[
+    test-6 "slots" word-prop
+    [ [ name>> ] [ class>> ] bi 2array ] map
+] unit-test
+
+TUPLE: test-7 { b integer initial: 3 } ;
+
+[ 3 ] [ "b" test-7 "slots" word-prop slot-named initial>> ] unit-test
+
+TUPLE: test-8 { b integer read-only } ;
+
+[ t ] [ "b" test-8 "slots" word-prop slot-named read-only>> ] unit-test
+
+DEFER: foo
+
+[ "IN: classes.tuple.parser.tests TUPLE: foo < test-1 < ;" eval ]
+[ error>> invalid-slot-name? ]
+must-fail-with
+
+[ "IN: classes.tuple.parser.tests TUPLE: foo :" eval ]
+[ error>> invalid-slot-name? ]
+must-fail-with
+
+[ "IN: classes.tuple.parser.tests TUPLE: foo" eval ]
+[ error>> unexpected-eof? ]
+must-fail-with
+
+2 [
+    [ "IN: classes.tuple.parser.tests USE: alien TUPLE: foo { slot dll } ;" eval ]
+    [ error>> no-initial-value? ]
+    must-fail-with
+
+    [ f ] [ \ foo tuple-class? ] unit-test
+] times
+
+2 [
+    [ "IN: classes.tuple.parser.tests USE: arrays TUPLE: foo { slot array initial: 5 } ;" eval ]
+    [ error>> bad-initial-value? ]
+    must-fail-with
+
+    [ f ] [ \ foo tuple-class? ] unit-test
+] times
+
+[ "IN: classes.tuple.parser.tests USE: arrays TUPLE: foo slot { slot array } ;" eval ]
+[ error>> duplicate-slot-names? ]
+must-fail-with
+
+[ f ] [ \ foo tuple-class? ] unit-test
+
+[ ] [
+    [
+        { test-1 test-2 test-3 test-4 test-5 test-6 test-7 test-8 foo }
+        [ dup class? [ forget-class ] [ drop ] if ] each
+    ] with-compilation-unit
+] unit-test
+
+TUPLE: syntax-test bar baz ;
+
+[ T{ syntax-test } ] [ T{ syntax-test } ] unit-test
+[ T{ syntax-test f { 2 3 } { 4 { 5 } } } ]
+[ T{ syntax-test { bar { 2 3 } } { baz { 4 { 5 } } } } ] unit-test
diff --git a/core/classes/tuple/parser/parser.factor b/core/classes/tuple/parser/parser.factor
new file mode 100644
index 0000000000..531658a5e0
--- /dev/null
+++ b/core/classes/tuple/parser/parser.factor
@@ -0,0 +1,89 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel sets namespaces sequences parser
+lexer combinators words classes.parser classes.tuple arrays
+slots math assocs ;
+IN: classes.tuple.parser
+
+: slot-names ( slots -- seq )
+    [ dup array? [ first ] when ] map ;
+
+: shadowed-slots ( superclass slots -- shadowed )
+    [ all-slots [ name>> ] map ] [ slot-names ] bi* intersect ;
+
+: check-slot-shadowing ( class superclass slots -- )
+    shadowed-slots [
+        [
+            "Definition of slot ``" %
+            %
+            "'' in class ``" %
+            name>> %
+            "'' shadows a superclass slot" %
+        ] "" make note.
+    ] with each ;
+
+ERROR: duplicate-slot-names names ;
+
+: check-duplicate-slots ( slots -- )
+    slot-names duplicates
+    [ duplicate-slot-names ] unless-empty ;
+
+ERROR: invalid-slot-name name ;
+
+: parse-long-slot-name ( -- )
+    [ scan , \ } parse-until % ] { } make ;
+
+: parse-slot-name ( string/f -- ? )
+    #! This isn't meant to enforce any kind of policy, just
+    #! to check for mistakes of this form:
+    #!
+    #! TUPLE: blahblah foo bing
+    #!
+    #! : ...
+    {
+        { [ dup not ] [ unexpected-eof ] }
+        { [ dup { ":" "(" "<" "\"" "!" } member? ] [ invalid-slot-name ] }
+        { [ dup ";" = ] [ drop f ] }
+        [ dup "{" = [ drop parse-long-slot-name ] when , t ]
+    } cond ;
+
+: parse-tuple-slots ( -- )
+    scan parse-slot-name [ parse-tuple-slots ] when ;
+
+: parse-tuple-definition ( -- class superclass slots )
+    CREATE-CLASS
+    scan {
+        { ";" [ tuple f ] }
+        { "<" [ scan-word [ parse-tuple-slots ] { } make ] }
+        [ tuple swap [ parse-slot-name [ parse-tuple-slots ] when ] { } make ]
+    } case
+    dup check-duplicate-slots
+    3dup check-slot-shadowing ;
+
+: parse-slot-value ( -- )
+    scan scan-object 2array , scan "}" assert= ;
+
+: (parse-slot-values) ( -- )
+    parse-slot-value
+    scan {
+        { "{" [ (parse-slot-values) ] }
+        { "}" [ ] }
+    } case ;
+
+: parse-slot-values ( -- )
+    [ (parse-slot-values) ] { } make ;
+
+: boa>tuple ( class slots -- tuple )
+    swap prefix >tuple ;
+
+: assoc>tuple ( class slots -- tuple )
+    [ [ ] [ initial-values ] [ all-slots ] tri ] dip
+    swap [ [ slot-named offset>> 2 - ] curry dip ] curry assoc-map
+    [ dup <enum> ] dip update boa>tuple ;
+
+: parse-tuple-literal ( -- tuple )
+    scan-word scan {
+        { "f" [ \ } parse-until boa>tuple ] }
+        { "{" [ parse-slot-values assoc>tuple ] }
+        { "}" [ new ] }
+    } case ;
diff --git a/core/classes/tuple/tuple-docs.factor b/core/classes/tuple/tuple-docs.factor
index 9f8ce83240..e16be25ce4 100755
--- a/core/classes/tuple/tuple-docs.factor
+++ b/core/classes/tuple/tuple-docs.factor
@@ -1,8 +1,40 @@
 USING: generic help.markup help.syntax kernel
 classes.tuple.private classes slots quotations words arrays
-generic.standard sequences definitions compiler.units ;
+generic.standard sequences definitions compiler.units
+growable vectors sbufs assocs math ;
 IN: classes.tuple
 
+ARTICLE: "slot-read-only-declaration" "Read-only slots"
+"By default, all slots are writable. If a slot is explicitly declared " { $link read-only } ", then no writer method is generated for the slot, and the only way to set it to a value other than its initial value is to construct an instance of the tuple with " { $link boa } ", passing the initial value for the read-only slot on the stack; the common idiom of calling " { $link new } " and then immediately filling in slot values with setter words will not work with read-only slots." ;
+
+ARTICLE: "slot-class-declaration" "Slot class declarations"
+"Class declaration is optional, and the default value is " { $link object } ", the class of all objects. If a more specific class is declared, then the object system maintains an invariant that the value of the slot must always be an instance of the class, even during construction. This invariant is enforced at a number of locations:"
+{ $list
+    { "Writer words (" { $link "accessors" } ") throw an error if the new value does not satisfy the class predicate." }
+    { "The " { $link new } " word fills in slots with their initial values; the (per-class) initial values are required to satisfy the class predicate." }
+    { "The " { $link boa } " word ensures that the values on the stack satisfy the class predicate." }
+    { { $link "mirrors" } " ensure that the value passed to " { $link set-at } " satisfies the class predicate." }
+    { "The " { $link slots>tuple } " and " { $link >tuple } " words ensure that the values in the sequence satisfy the correct class predicates." }
+    { { $link "tuple-redefinition" } " fills in new slots with initial values and ensures that changes to existing declarations result in incompatible values being replaced with the initial value of their respective slots." }
+}
+{ $subsection "slot-class-coercion" } ;
+
+ARTICLE: "slot-class-coercion" "Coercive slot declarations"
+"If the class of a slot is declared to be one of " { $link fixnum } " or " { $link float } ", then rather than testing values with the class predicate, writer words coerce values to the relevant type with " { $link >fixnum } " or " { $link >float } ". This may still result in error, but permits a wider range of values than a class predicate test. It also results in a possible loss of precision; for example, storing a large integer into a " { $link fixnum } " slot will silently overflow and discard high bits, and storing a ratio into a " { $link float } " slot may lose precision if the ratio is one which cannot be represented exactly with floating-point."
+$nl
+"This feature is mostly intended as an optimization for low-level code designed to avoid integer overflow, or where floating point precision is sufficient. Most code needs to work transparently with large integers, and thus hsould avoid the coercion behavior by using " { $link integer } " and " { $link real } " in place of " { $link fixnum } " and " { $link float } "." ;
+
+ARTICLE: "tuple-declarations" "Tuple slot declarations"
+"The slot specifier syntax of the " { $link POSTPONE: TUPLE: } " parsing word understands the following slot attributes:"
+{ $list
+    "class declaration: values must satisfy the class predicate"
+    { "whether a slot is read only or not (" { $link read-only } ")" }
+    { "an initial value (" { $link initial: } ")" }
+}
+{ $subsection "slot-read-only-declaration" }
+{ $subsection "slot-class-declaration" }
+{ $subsection "slot-initial-values" } ;
+
 ARTICLE: "parametrized-constructors" "Parameterized constructors"
 "A " { $emphasis "parametrized constructor" } " is a word which directly or indirectly calls " { $link new } " or " { $link boa } ", but instead of passing a literal class symbol, it takes the class symbol as an input from the stack."
 $nl
@@ -58,22 +90,30 @@ ARTICLE: "tuple-constructors" "Tuple constructors"
 { $subsection POSTPONE: C: }
 "By convention, construction logic is encapsulated in a word named after the tuple class surrounded in angle brackets; for example, the constructor word for a " { $snippet "point" } " class might be named " { $snippet "<point>" } "."
 $nl
+"Constructors play a part in enforcing the invariant that slot values must always match slot declarations. The " { $link new } " word fills in the tuple will initial values, and " { $link boa } " ensures that the values on the stack match the corresponding slot declarations. See " { $link "tuple-declarations" } "."
+$nl
 "All tuple construction should be done through constructor words, and construction primitives should be encapsulated and never called outside of the vocabulary where the class is defined, because this encourages looser coupling. For example, a constructor word could be changed to use memoization instead of always constructing a new instance, or it could be changed to construt a different class, without breaking callers."
 $nl
 "Examples of constructors:"
 { $code
-    "TUPLE: color red green blue alpha ;"
+    "TUPLE: color"
+    "{ red integer }"
+    "{ green integer }"
+    "{ blue integer }"
+    "{ alpha integer initial: 1 } ;"
     ""
     "! The following two are equivalent"
     "C: <rgba> rgba"
     ": <rgba> color boa ;"
     ""
     "! We can define constructors which call other constructors"
-    ": <rgb> f <rgba> ;"
+    ": <rgb> 1 <rgba> ;"
     ""
-    "! The following two are equivalent"
-    ": <color> color new ;"
-    ": <color> f f f f <rgba> ;"
+    "! The following two are equivalent; note the initial value"
+    ": <color> ( -- color ) color new ;"
+    ": <color> ( -- color ) 0 0 0 1 <rgba> ;"
+    "! Run-time error"
+    "\"not a number\" 2 3 4 color boa"
 }
 { $subsection "parametrized-constructors" } ;
 
@@ -225,37 +265,66 @@ ARTICLE: "tuple-examples" "Tuple examples"
 ARTICLE: "tuple-redefinition" "Tuple redefinition"
 "In the following, the " { $emphasis "direct slots" } " of a tuple class refers to the slot names specified in the " { $link POSTPONE: TUPLE: } " form defining the tuple class, and the " { $emphasis "effective slots" } " refers to the concatenation of the direct slots together with slots defined on superclasses."
 $nl
-"When a tuple class is redefined, all instances of the class, including subclasses, are updated. For each instance, the list of effective slots is compared with the previous list. If any slots were removed, the values are removed from the instance and are lost forever. If any slots were added, the instance gains these slots with an initial value of " { $link f } "."
+"When the " { $emphasis "effective slots" } " of a tuple class change, all instances of the class, including subclasses, are updated."
 $nl
-"There are three ways to change the list of effective slots of a class:"
+"There are three ways in which the list of effective slots may change:"
 { $list
     "Adding or removing direct slots of the class"
     "Adding or removing direct slots of a superclass of the class"
-    "Changing the inheritance hierarchy by redefining a class to have a different superclass"
+    "Changing the inheritance hierarchy by changing the superclass of a class"
+    "Declarations changing on existing slots"
 }
 "In all cases, the new effective slots are compared with the old effective slots, and each instance is updated as follows:"
 { $list
     "If any slots were removed, the values are removed from the instance and are lost forever."
-    { "If any slots were added, the instance gains these slots with an initial value of " { $link f } "." }
+    "If any slots were added, the instance gains these slots, all set to their initial values."
     "If any slots are permuted, their values in instances do not change; only the layout of the instance changes in memory."
+    "If the slot declaration of an existing slot changes, existing values are checked to see if they are still an instance of the required class. Any which are not are replaced by the initial value of that slot."
     "If the number or order of effective slots changes, any BOA constructors are recompiled."
 }
 "Note that if a slot is moved from a class to its superclass (or vice versa) in the same compilation unit, the value of the slot is preserved in existing instances, because tuple instance update always runs at the end of a compilation unit. However, if it is removed in one compilation unit and added in another, the value in existing instances is lost." ;
 
+ARTICLE: "protocol-slots" "Protocol slots"
+"A " { $emphasis "protocol slot" } " is one which is assumed to exist by the implementation of a class, without being defined on the class itself. The burden is on subclasses (or mixin instances) to provide this slot."
+$nl
+"Protocol slots are defined using a parsing word:"
+{ $subsection POSTPONE: SLOT: }
+"Protocol slots are used where the implementation of a superclass needs to assume that each subclass defines certain slots, however the slots of each subclass are potentially declared with different class specializers, thus preventing the slots from being defined in the superclass."
+$nl
+"For example, the " { $link growable } " mixin provides an implementation of the sequence protocol which wraps an underlying sequence, resizing it as necessary when elements are added beyond the length of the sequence. It assumes that the concrete mixin instances define two slots, " { $snippet "length" } " and " { $snippet "underlying" } ". These slots are defined as protocol slots:"
+{ $snippet "SLOT: length" "SLOT: underlying" }
+"An alternate approach would be to define " { $link growable } " as a tuple class with these two slots, and have other classes subclass it as required. However, this rules out subclasses defining these slots with custom type declarations."
+$nl
+"For example, compare the definitions of the " { $link sbuf } " class,"
+{ $code
+    "TUPLE: sbuf"
+    "{ underlying string }"
+    "{ length array-capacity } ;"
+    ""
+    "INSTANCE: sbuf growable"
+}
+"with that of the " { $link vector } " class:"
+{ $code
+    "TUPLE: vector"
+    "{ underlying array }"
+    "{ length array-capacity } ;"
+    ""
+    "INSTANCE: vector growable"
+} ;
+
 ARTICLE: "tuples" "Tuples"
-"Tuples are user-defined classes composed of named slots."
+"Tuples are user-defined classes composed of named slots. They are the central data type of Factor's object system."
 { $subsection "tuple-examples" }
 "A parsing word defines tuple classes:"
 { $subsection POSTPONE: TUPLE: }
-"For each tuple class, several words are defined. First, there is the class word, a class predicate, and accessor words for each slot."
+"For each tuple class, several words are defined, the class word, a class predicate, and accessor words for each slot."
 $nl
-"The class word is used for defining methods on the tuple class; it has the same name as the tuple class. The predicate is named " { $snippet { $emphasis "name" } "?" } ". Tuple slots are accessed via accessor words:"
+"The class word is used for defining methods on the tuple class; it has the same name as the tuple class. The predicate is named " { $snippet { $emphasis "name" } "?" } ". Initially, no specific words are defined for constructing new instances of the tuple. Constructors must be defined explicitly, and tuple slots are accessed via automatically-generated accessor words."
 { $subsection "accessors" }
-"Initially, no specific words are defined for constructing new instances of the tuple. Constructors must be defined explicitly:"
 { $subsection "tuple-constructors" }
-"Expressing relationships through the object system:"
 { $subsection "tuple-subclassing" }
-"Introspection:"
+{ $subsection "tuple-declarations" }
+{ $subsection "protocol-slots" }
 { $subsection "tuple-introspection" }
 "Tuple classes can be redefined; this updates existing instances:"
 { $subsection "tuple-redefinition" }
@@ -263,6 +332,10 @@ $nl
 
 ABOUT: "tuples"
 
+HELP: tuple-class
+{ $class-description "The class of tuple class words." }
+{ $examples { $example "USING: classes.tuple prettyprint ;" "IN: scratchpad" "TUPLE: name title first last ;" "name tuple-class? ." "t" } } ;
+
 HELP: tuple=
 { $values { "tuple1" tuple } { "tuple2" tuple } { "?" "a boolean" } }
 { $description "Low-level tuple equality test. User code should use " { $link = } " instead." }
@@ -273,11 +346,9 @@ HELP: tuple
 $nl
 "Tuple classes have additional word properties:"
 { $list
-    { { $snippet "\"constructor\"" } " - a word for creating instances of this tuple class" }
     { { $snippet "\"predicate\"" } " - a quotation which tests if the top of the stack is an instance of this tuple class" }
     { { $snippet "\"slots\"" } " - a sequence of " { $link slot-spec } " instances" }
-    { { $snippet "\"slot-names\"" } " - a sequence of strings naming the tuple's slots" }
-    { { $snippet "\"tuple-size\"" } " - the number of slots" }
+    { { $snippet "\"tuple-layout\"" } " - a " { $link tuple-layout } " instance" }
 } } ;
 
 HELP: define-tuple-predicate
@@ -320,8 +391,14 @@ HELP: >tuple
 { $values { "seq" sequence } { "tuple" tuple } }
 { $description "Creates a tuple with slot values taken from a sequence. The first element of the sequence must be a tuple class word and the remainder the declared slots."
 $nl
-"If the sequence has too many elements, they are ignored, and if it has too few, the remaining slots in the tuple are set to " { $link f } "." }
-{ $errors "Throws an error if the first element of the sequence is not a tuple class word." } ;
+"If the sequence has too few elements, the remaining slots in the tuple are set to their initial values." }
+{ $errors "Throws an error if one of the following occurs:"
+    { $list
+        "the first element of the sequence is not a tuple class word"
+        "the values in the sequence do not satisfy the slot class predicates"
+        "the sequence is too long"
+    }
+} ;
 
 HELP: tuple>array ( tuple -- array )
 { $values { "tuple" tuple } { "array" array } }
@@ -337,40 +414,19 @@ HELP: <tuple-boa> ( ... layout -- tuple )
 
 HELP: new
 { $values { "class" tuple-class } { "tuple" tuple } }
-{ $description "Creates a new instance of " { $snippet "class" } " with all slots initially set to " { $link f } "." }
+{ $description "Creates a new instance of " { $snippet "class" } " with all slots set to their initial values (see" { $link "tuple-declarations" } ")." }
 { $examples
     { $example
         "USING: kernel prettyprint ;"
         "IN: scratchpad"
         "TUPLE: employee number name department ;"
         "employee new ."
-        "T{ employee f f f f }"
+        "T{ employee }"
     }
 } ;
 
-HELP: construct
-{ $values { "..." "slot values" } { "slots" "a sequence of setter words" } { "class" tuple-class } { "tuple" tuple } }
-{ $description "Creates a new instance of " { $snippet "class" } ", storing consecutive stack values into the slots of the new tuple using setter words in " { $snippet "slots" } ". The top-most stack element is stored in the right-most slot." }
-{ $examples
-    "We can define a class:"
-    { $code "TUPLE: color red green blue alpha ;" }
-    "Together with two constructors:"
-    { $code
-        ": <rgb> ( r g b -- color )"
-        "    { set-color-red set-color-green set-color-blue }"
-        "    color construct ;"
-        ""
-        ": <rgba> ( r g b a -- color )"
-        "    { set-color-red set-color-green set-color-blue set-color-alpha }"
-        "    color construct ;"
-    }
-    "The last definition is actually equivalent to the following:"
-    { $code ": <rgba> ( r g b a -- color ) rgba boa ;" }
-    "Which can be abbreviated further:"
-    { $code "C: <rgba> color" }
-} ;
-
 HELP: boa
 { $values { "..." "slot values" } { "class" tuple-class } { "tuple" tuple } }
 { $description "Creates a new instance of " { $snippet "class" } " and fill in the slots from the stack, with the top-most stack element being stored in the right-most slot." }
-{ $notes "The name " { $snippet "boa" } " is shorthand for ``by order of arguments'', and ``BOA constructor'' is a pun on ``boa constrictor''." } ;
+{ $notes "The name " { $snippet "boa" } " is shorthand for ``by order of arguments'', and ``BOA constructor'' is a pun on ``boa constrictor''." }
+{ $errors "Throws an error if the slot values do not match class declarations on slots (see" { $link "tuple-declarations" } ")." } ;
diff --git a/core/classes/tuple/tuple-tests.factor b/core/classes/tuple/tuple-tests.factor
index ab6c139f7b..5c91bdf8dd 100755
--- a/core/classes/tuple/tuple-tests.factor
+++ b/core/classes/tuple/tuple-tests.factor
@@ -3,12 +3,12 @@ math.constants parser sequences tools.test words assocs
 namespaces quotations sequences.private classes continuations
 generic.standard effects classes.tuple classes.tuple.private
 arrays vectors strings compiler.units accessors classes.algebra
-calendar prettyprint io.streams.string splitting inspector
-columns math.order classes.private ;
+calendar prettyprint io.streams.string splitting summary
+columns math.order classes.private slots slots.private eval ;
 IN: classes.tuple.tests
 
 TUPLE: rect x y w h ;
-: <rect> rect boa ;
+: <rect> ( x y w h -- rect ) rect boa ;
 
 : move ( x rect -- rect )
     [ + ] change-x ;
@@ -46,13 +46,13 @@ C: <point> point
 
 [ ] [ "p" get 300 ">>z" "accessors" lookup execute drop ] unit-test
 
-[ 4 ] [ "p" get tuple-size ] unit-test
+[ 3 ] [ "p" get tuple-size ] unit-test
 
 [ 300 ] [ "p" get "z>>" "accessors" lookup execute ] unit-test
 
 [ ] [ "IN: classes.tuple.tests TUPLE: point z y ;" eval ] unit-test
 
-[ 3 ] [ "p" get tuple-size ] unit-test
+[ 2 ] [ "p" get tuple-size ] unit-test
 
 [ "p" get x>> ] must-fail
 [ 200 ] [ "p" get y>> ] unit-test
@@ -69,7 +69,7 @@ C: <predicate-test> predicate-test
 PREDICATE: silly-pred < tuple
     class \ rect = ;
 
-GENERIC: area
+GENERIC: area ( obj -- n )
 M: silly-pred area dup w>> swap h>> * ;
 
 TUPLE: circle radius ;
@@ -88,20 +88,20 @@ C: <empty> empty
 [ t length ] [ object>> t eq? ] must-fail-with
 
 [ "<constructor-test>" ]
-[ "IN: classes.tuple.test TUPLE: constructor-test ; C: <constructor-test> constructor-test" eval word word-name ] unit-test
+[ "IN: classes.tuple.test TUPLE: constructor-test ; C: <constructor-test> constructor-test" eval word name>> ] unit-test
 
 TUPLE: size-test a b c d ;
 
 [ t ] [
     T{ size-test } tuple-size
-    size-test tuple-size =
+    size-test tuple-layout size>> =
 ] unit-test
 
 GENERIC: <yo-momma>
 
 TUPLE: yo-momma ;
 
-"IN: classes.tuple.tests C: <yo-momma> yo-momma" eval
+[ ] [ "IN: classes.tuple.tests C: <yo-momma> yo-momma" eval ] unit-test
 
 [ f ] [ \ <yo-momma> generic? ] unit-test
 
@@ -109,6 +109,7 @@ TUPLE: yo-momma ;
 [
     [ t ] [ \ yo-momma class? ] unit-test
     [ ] [ \ yo-momma forget ] unit-test
+    [ ] [ \ <yo-momma> forget ] unit-test
     [ f ] [ \ yo-momma update-map get values memq? ] unit-test
 
     [ f ] [ \ yo-momma crossref get at ] unit-test
@@ -164,7 +165,7 @@ C: <t4> t4
 [ 1 ] [ <t4> 1 m2 ] unit-test
 
 ! another combination issue
-GENERIC: silly
+GENERIC: silly ( obj -- obj obj )
 
 UNION: my-union slice repetition column array vector reversed ;
 
@@ -189,15 +190,6 @@ M: vector silly "z" ;
 ! Typo
 SYMBOL: not-a-tuple-class
 
-[
-    "IN: classes.tuple.tests C: <not-a-tuple-class> not-a-tuple-class"
-    eval
-] must-fail
-
-[ t ] [
-    "not-a-tuple-class" "classes.tuple.tests" lookup symbol?
-] unit-test
-
 ! Missing check
 [ not-a-tuple-class boa ] must-fail
 [ not-a-tuple-class new ] must-fail
@@ -208,19 +200,15 @@ C: <erg's-reshape-problem> erg's-reshape-problem
 
 ! We want to make sure constructors are recompiled when
 ! tuples are reshaped
-: cons-test-1 \ erg's-reshape-problem new ;
-: cons-test-2 \ erg's-reshape-problem boa ;
+: cons-test-1 ( -- tuple ) \ erg's-reshape-problem new ;
+: cons-test-2 ( a b c d -- tuple ) \ erg's-reshape-problem boa ;
 
-"IN: classes.tuple.tests TUPLE: erg's-reshape-problem a b c d e f ;" eval
+[ ] [ "IN: classes.tuple.tests TUPLE: erg's-reshape-problem a b c d e f ;" eval ] unit-test
 
 [ ] [ 1 2 3 4 5 6 cons-test-2 "a" set ] unit-test
 
 [ t ] [ cons-test-1 tuple-size "a" get tuple-size = ] unit-test
 
-[
-    "IN: classes.tuple.tests SYMBOL: not-a-class C: <not-a-class> not-a-class" eval
-] [ error>> no-tuple-class? ] must-fail-with
-
 ! Inheritance
 TUPLE: computer cpu ram ;
 C: <computer> computer
@@ -242,7 +230,7 @@ C: <laptop> laptop
 [ t ] [ "laptop" get computer? ] unit-test
 [ t ] [ "laptop" get tuple? ] unit-test
 
-: test-laptop-slot-values
+: test-laptop-slot-values ( -- )
     [ laptop ] [ "laptop" get class ] unit-test
     [ "Pentium" ] [ "laptop" get cpu>> ] unit-test
     [ 128 ] [ "laptop" get ram>> ] unit-test
@@ -251,9 +239,9 @@ C: <laptop> laptop
 test-laptop-slot-values
 
 [ laptop ] [
-    "laptop" get tuple-layout
-    dup layout-echelon swap
-    layout-superclasses nth
+    "laptop" get 1 slot
+    dup echelon>> swap
+    superclasses>> nth
 ] unit-test
 
 [ "TUPLE: laptop < computer battery ;" ] [
@@ -275,7 +263,7 @@ C: <server> server
 [ t ] [ "server" get computer? ] unit-test
 [ t ] [ "server" get tuple? ] unit-test
 
-: test-server-slot-values
+: test-server-slot-values ( -- )
     [ server ] [ "server" get class ] unit-test
     [ "PowerPC" ] [ "server" get cpu>> ] unit-test
     [ 64 ] [ "server" get ram>> ] unit-test
@@ -360,7 +348,7 @@ test-server-slot-values
 [ 110 ] [ "server" get voltage>> ] unit-test
 
 ! Reshaping superclass and subclass simultaneously
-"IN: classes.tuple.tests TUPLE: electronic-device voltage ; TUPLE: computer < electronic-device cpu ram ;" eval
+[ ] [ "IN: classes.tuple.tests TUPLE: electronic-device voltage ; TUPLE: computer < electronic-device cpu ram ;" eval ] unit-test
 
 test-laptop-slot-values
 test-server-slot-values
@@ -375,7 +363,7 @@ C: <test2> test2
 
 "a" "b" <test2> "test" set
 
-: test-a/b
+: test-a/b ( -- )
     [ "a" ] [ "test" get a>> ] unit-test
     [ "b" ] [ "test" get b>> ] unit-test ;
 
@@ -403,7 +391,7 @@ TUPLE: move-up-2 < move-up-1 c ;
 
 T{ move-up-2 f "a" "b" "c" } "move-up" set
 
-: test-move-up
+: test-move-up ( -- )
     [ "a" ] [ "move-up" get a>> ] unit-test
     [ "b" ] [ "move-up" get b>> ] unit-test
     [ "c" ] [ "move-up" get c>> ] unit-test ;
@@ -437,7 +425,7 @@ C: <constructor-update-2> constructor-update-2
 
 { 5 1 } [ <constructor-update-2> ] must-infer-as
 
-[ { f 1 2 3 4 5 } ] [ 1 2 3 4 5 <constructor-update-2> tuple-slots ] unit-test
+[ { 1 2 3 4 5 } ] [ 1 2 3 4 5 <constructor-update-2> tuple-slots ] unit-test
 
 ! Redefinition problem
 TUPLE: redefinition-problem ;
@@ -455,41 +443,43 @@ TUPLE: redefinition-problem-2 ;
 ! Hardcore unit tests
 USE: threads
 
-\ thread slot-names "slot-names" set
+\ thread "slots" word-prop "slots" set
 
 [ ] [
     [
-        \ thread tuple { "xxx" } "slot-names" get append
+        \ thread tuple { "xxx" } "slots" get append
         define-tuple-class
     ] with-compilation-unit
 
     [ 1337 sleep ] "Test" spawn drop
 
     [
-        \ thread tuple "slot-names" get
+        \ thread tuple "slots" get
         define-tuple-class
     ] with-compilation-unit
 ] unit-test
 
 USE: vocabs
 
-\ vocab slot-names "slot-names" set
+\ vocab "slots" word-prop "slots" set
 
 [ ] [
     [
-        \ vocab tuple { "xxx" } "slot-names" get append
+        \ vocab tuple { "xxx" } "slots" get append
         define-tuple-class
     ] with-compilation-unit
 
     all-words drop
 
     [
-        \ vocab tuple "slot-names" get
+        \ vocab tuple "slots" get
         define-tuple-class
     ] with-compilation-unit
 ] unit-test
 
-[ "USE: words T{ word }" eval ] [ error>> no-method? ] must-fail-with
+[ "USE: words T{ word }" eval ]
+[ error>> T{ no-method f word new } = ]
+must-fail-with
 
 ! Accessors not being forgotten...
 [ [ ] ] [
@@ -552,11 +542,11 @@ TUPLE: subclass-forget-test-3 < subclass-forget-test-2 ;
 
 [ ] [ "IN: classes.tuple.tests FORGET: subclass-forget-test" eval ] unit-test
 
-[ H{ { subclass-forget-test-2 subclass-forget-test-2 } } ]
+[ { subclass-forget-test-2 } ]
 [ subclass-forget-test-2 class-usages ]
 unit-test
 
-[ H{ { subclass-forget-test-3 subclass-forget-test-3 } } ]
+[ { subclass-forget-test-3 } ]
 [ subclass-forget-test-3 class-usages ]
 unit-test
 
@@ -565,3 +555,157 @@ unit-test
 [ subclass-forget-test-3 new ] must-fail
 
 [ "IN: classes.tuple.tests TUPLE: subclass-forget-test-4 < subclass-forget-test-2 ;" eval ] must-fail
+
+! More
+DEFER: subclass-reset-test
+DEFER: subclass-reset-test-1
+DEFER: subclass-reset-test-2
+DEFER: subclass-reset-test-3
+
+GENERIC: break-me ( obj -- )
+
+[ ] [ [ { integer break-me } forget ] with-compilation-unit ] unit-test
+
+[ ] [ "IN: classes.tuple.tests TUPLE: subclass-reset-test ;" <string-reader> "subclass-reset-test" parse-stream drop ] unit-test
+[ ] [ "IN: classes.tuple.tests TUPLE: subclass-reset-test-1 < subclass-reset-test ;" eval ] unit-test
+[ ] [ "IN: classes.tuple.tests TUPLE: subclass-reset-test-2 < subclass-reset-test ;" eval ] unit-test
+[ ] [ "IN: classes.tuple.tests TUPLE: subclass-reset-test-3 < subclass-reset-test-2 ;" eval ] unit-test
+
+[ ] [ "IN: classes.tuple.tests USE: kernel M: subclass-reset-test-1 break-me drop ;" eval ] unit-test
+
+[ ] [ "IN: classes.tuple.tests : subclass-reset-test ;" <string-reader> "subclass-reset-test" parse-stream drop ] unit-test
+
+[ f ] [ subclass-reset-test-1 tuple-class? ] unit-test
+[ f ] [ subclass-reset-test-2 tuple-class? ] unit-test
+[ subclass-forget-test-3 new ] must-fail
+
+[ t ] [ \ break-me "methods" word-prop assoc-empty? ] unit-test
+
+[ ] [ "IN: classes.tuple.tests USE: math USE: kernel M: integer break-me drop ;" eval ] unit-test
+
+[ f ] [ \ break-me "methods" word-prop assoc-empty? ] unit-test
+
+! Insufficient type checking
+[ \ vocab tuple>array drop ] must-fail
+
+! Check type declarations
+TUPLE: declared-types { n fixnum } { m string } ;
+
+[ T{ declared-types f 0 "hi" } ]
+[ { declared-types 0 "hi" } >tuple ]
+unit-test
+
+[ { declared-types "hi" 0 } >tuple ]
+[ T{ bad-slot-value f "hi" fixnum } = ]
+must-fail-with
+
+[ T{ declared-types f 0 "hi" } ]
+[ 0.0 "hi" declared-types boa ] unit-test
+
+: foo ( a b -- c ) declared-types boa ;
+
+\ foo must-infer
+
+[ T{ declared-types f 0 "hi" } ] [ 0.0 "hi" foo ] unit-test
+
+[ "hi" 0.0 declared-types boa ]
+[ T{ no-method f "hi" >fixnum } = ]
+must-fail-with
+
+[ 0 { } declared-types boa ]
+[ T{ bad-slot-value f { } string } = ]
+must-fail-with
+
+[ "hi" 0.0 foo ]
+[ T{ no-method f "hi" >fixnum } = ]
+must-fail-with
+
+[ 0 { } foo ]
+[ T{ bad-slot-value f { } string } = ]
+must-fail-with
+
+[ T{ declared-types f 0 "" } ] [ declared-types new ] unit-test
+
+: blah ( -- vec ) vector new ;
+
+\ blah must-infer
+
+[ V{ } ] [ blah ] unit-test
+
+! Test reshaping with type declarations and slot attributes
+TUPLE: reshape-test x ;
+
+T{ reshape-test f "hi" } "tuple" set
+
+[ ] [ "IN: classes.tuple.tests TUPLE: reshape-test { x read-only } ;" eval ] unit-test
+
+[ f ] [ \ reshape-test \ (>>x) method ] unit-test
+
+[ "tuple" get 5 >>x ] must-fail
+
+[ "hi" ] [ "tuple" get x>> ] unit-test
+
+[ ] [ "IN: classes.tuple.tests USE: math TUPLE: reshape-test { x integer read-only } ;" eval ] unit-test
+
+[ 0 ] [ "tuple" get x>> ] unit-test
+
+[ ] [ "IN: classes.tuple.tests USE: math TUPLE: reshape-test { x fixnum initial: 4 read-only } ;" eval ] unit-test
+
+[ 0 ] [ "tuple" get x>> ] unit-test
+
+TUPLE: boa-coercer-test { x array-capacity } ;
+
+[ fixnum ] [ 0 >bignum boa-coercer-test boa x>> class ] unit-test
+
+[ T{ boa-coercer-test f 0 } ] [ T{ boa-coercer-test } ] unit-test
+
+! Test error classes
+ERROR: error-class-test a b c ;
+
+[ "( a b c -- * )" ] [ \ error-class-test stack-effect effect>string ] unit-test
+[ f ] [ \ error-class-test "inline" word-prop ] unit-test
+
+[ "IN: classes.tuple.tests ERROR: error-x ; : error-x 3 ;" eval ]
+[ error>> error>> redefine-error? ] must-fail-with
+
+DEFER: error-y
+
+[ ] [ [ \ error-y dup class? [ forget-class ] [ drop ] if ] with-compilation-unit ] unit-test
+
+[ ] [ "IN: classes.tuple.tests GENERIC: error-y" eval ] unit-test
+
+[ f ] [ \ error-y tuple-class? ] unit-test
+
+[ t ] [ \ error-y generic? ] unit-test
+
+[ ] [ "IN: classes.tuple.tests ERROR: error-y ;" eval ] unit-test
+
+[ t ] [ \ error-y tuple-class? ] unit-test
+
+[ f ] [ \ error-y generic? ] unit-test
+
+[ ] [
+    "IN: classes.tuple.tests TUPLE: forget-subclass-test ; TUPLE: forget-subclass-test' < forget-subclass-test ;"
+    <string-reader> "forget-subclass-test" parse-stream
+    drop
+] unit-test
+
+[ ] [ "forget-subclass-test'" "classes.tuple.tests" lookup new "bad-object" set ] unit-test
+
+[ ] [
+    "IN: classes.tuple.tests TUPLE: forget-subclass-test a ;"
+    <string-reader> "forget-subclass-test" parse-stream
+    drop
+] unit-test
+
+[ ] [
+    "IN: sequences TUPLE: reversed { seq read-only } ;" eval
+] unit-test
+
+TUPLE: bogus-hashcode-1 x ;
+
+TUPLE: bogus-hashcode-2 x ;
+
+M: bogus-hashcode-1 hashcode* 2drop 0 >bignum ;
+
+[ ] [ T{ bogus-hashcode-2 f T{ bogus-hashcode-1 } } hashcode drop ] unit-test
diff --git a/core/classes/tuple/tuple.factor b/core/classes/tuple/tuple.factor
index 4e6ce0d2bb..b5c3658542 100755
--- a/core/classes/tuple/tuple.factor
+++ b/core/classes/tuple/tuple.factor
@@ -1,172 +1,220 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions hashtables kernel
-kernel.private math namespaces sequences sequences.private
-strings vectors words quotations memory combinators generic
-classes classes.private slots.deprecated slots.private slots
-compiler.units math.private accessors assocs ;
+USING: arrays definitions hashtables kernel kernel.private math
+namespaces sequences sequences.private strings vectors words
+quotations memory combinators generic classes classes.algebra
+classes.builtin classes.private slots.private slots
+compiler.units math.private accessors assocs effects ;
 IN: classes.tuple
 
+PREDICATE: tuple-class < class
+    "metaclass" word-prop tuple-class eq? ;
+
 M: tuple class 1 slot 2 slot { word } declare ;
 
-ERROR: no-tuple-class class ;
+ERROR: not-a-tuple object ;
+
+: check-tuple ( object -- tuple )
+    dup tuple? [ not-a-tuple ] unless ; inline
+
+: all-slots ( class -- slots )
+    superclasses [ "slots" word-prop ] map concat ;
+
+PREDICATE: immutable-tuple-class < tuple-class ( class -- ? )
+    all-slots [ read-only>> ] all? ;
 
 <PRIVATE
 
-GENERIC: tuple-layout ( object -- layout )
+: tuple-layout ( class -- layout )
+    "layout" word-prop ;
 
-M: tuple-class tuple-layout "layout" word-prop ;
+: layout-of ( tuple -- layout )
+    1 slot { tuple-layout } declare ; inline
 
-M: tuple tuple-layout 1 slot ;
-
-M: tuple-layout tuple-layout ;
-
-: tuple-size tuple-layout layout-size ; inline
+: tuple-size ( tuple -- size )
+    layout-of size>> ; inline
 
 : prepare-tuple>array ( tuple -- n tuple layout )
-    [ tuple-size ] [ ] [ tuple-layout ] tri ;
+    check-tuple [ tuple-size ] [ ] [ layout-of ] tri ;
 
 : copy-tuple-slots ( n tuple -- array )
     [ array-nth ] curry map ;
 
+: check-slots ( seq class -- seq class )
+    [ ] [
+        2dup all-slots [
+            class>> 2dup instance?
+            [ 2drop ] [ bad-slot-value ] if
+        ] 2each
+    ] if-bootstrapping ; inline
+
 PRIVATE>
 
-: check-tuple ( class -- )
-    dup tuple-class?
-    [ drop ] [ no-tuple-class ] if ;
+: initial-values ( class -- slots )
+    all-slots [ initial>> ] map ;
+
+: pad-slots ( slots class -- slots' class )
+    [ initial-values over length tail append ] keep ; inline
 
 : tuple>array ( tuple -- array )
     prepare-tuple>array
     >r copy-tuple-slots r>
-    layout-class prefix ;
+    class>> prefix ;
 
 : tuple-slots ( tuple -- seq )
     prepare-tuple>array drop copy-tuple-slots ;
 
-: slots>tuple ( tuple class -- array )
+GENERIC: slots>tuple ( seq class -- tuple )
+
+M: tuple-class slots>tuple
+    check-slots pad-slots
     tuple-layout <tuple> [
-        [ tuple-size ] [ [ set-array-nth ] curry ] bi 2each
+        [ tuple-size ]
+        [ [ set-array-nth ] curry ]
+        bi 2each
     ] keep ;
 
-: >tuple ( tuple -- seq )
+: >tuple ( seq -- tuple )
     unclip slots>tuple ;
 
-: slot-names ( class -- seq )
-    "slot-names" word-prop
-    [ dup array? [ second ] when ] map ;
-
-: all-slot-names ( class -- slots )
-    superclasses [ slot-names ] map concat \ class prefix ;
-
 ERROR: bad-superclass class ;
 
 <PRIVATE
 
 : tuple= ( tuple1 tuple2 -- ? )
-    2dup [ tuple-layout ] bi@ eq? [
+    2dup [ layout-of ] bi@ eq? [
         [ drop tuple-size ]
         [ [ [ drop array-nth ] [ nip array-nth ] 3bi = ] 2curry ]
         2bi all-integers?
     ] [
         2drop f
-    ] if ;
+    ] if ; inline
 
-! Predicate generation. We optimize at the expense of simplicity
-
-: (tuple-predicate-quot) ( class -- quot )
-    #! 4 slot == layout-superclasses
-    #! 5 slot == layout-echelon
-    [
-        [ 1 slot dup 5 slot ] %
-        dup tuple-layout layout-echelon ,
-        [ fixnum>= ] %
-        [
-            dup tuple-layout layout-echelon ,
-            [ swap 4 slot array-nth ] %
-            literalize ,
-            [ eq? ] %
-        ] [ ] make ,
-        [ drop f ] ,
-        \ if ,
-    ] [ ] make ;
-
-: tuple-predicate-quot ( class -- quot )
-    [
-        [ dup tuple? ] %
-        (tuple-predicate-quot) ,
-        [ drop f ] ,
-        \ if ,
-    ] [ ] make ;
+: tuple-instance? ( object class echelon -- ? )
+    #! 4 slot == superclasses>>
+    rot dup tuple? [
+        layout-of 4 slot
+        2dup 1 slot fixnum<
+        [ array-nth eq? ] [ 3drop f ] if
+    ] [ 3drop f ] if ; inline
 
 : define-tuple-predicate ( class -- )
-    dup tuple-predicate-quot define-predicate ;
+    dup dup tuple-layout echelon>>
+    [ tuple-instance? ] 2curry define-predicate ;
 
 : superclass-size ( class -- n )
-    superclasses but-last-slice
-    [ slot-names length ] map sum ;
+    superclasses but-last [ "slots" word-prop length ] sigma ;
 
-: generate-tuple-slots ( class slots -- slot-specs )
-    over superclass-size 2 + simple-slots ;
+: (instance-check-quot) ( class -- quot )
+    [
+        \ dup ,
+        [ "predicate" word-prop % ]
+        [ [ bad-slot-value ] curry , ] bi
+        \ unless ,
+    ] [ ] make ;
+
+: (fixnum-check-quot) ( class -- quot )
+    (instance-check-quot) fixnum "coercer" word-prop prepend ;
+
+: instance-check-quot ( class -- quot )
+    {
+        { [ dup object bootstrap-word eq? ] [ drop [ ] ] }
+        { [ dup "coercer" word-prop ] [ "coercer" word-prop ] }
+        { [ dup \ fixnum class<= ] [ (fixnum-check-quot) ] }
+        [ (instance-check-quot) ]
+    } cond ;
+
+: boa-check-quot ( class -- quot )
+    all-slots [ class>> instance-check-quot ] map spread>quot ;
+
+: define-boa-check ( class -- )
+    dup boa-check-quot "boa-check" set-word-prop ;
+
+: tuple-prototype ( class -- prototype )
+    [ initial-values ] keep
+    over [ ] contains? [ slots>tuple ] [ 2drop f ] if ;
+
+: define-tuple-prototype ( class -- )
+    dup tuple-prototype "prototype" set-word-prop ;
+
+: finalize-tuple-slots ( class slots -- slots )
+    swap superclass-size 2 + finalize-slots ;
 
 : define-tuple-slots ( class -- )
-    dup dup "slot-names" word-prop generate-tuple-slots
-    [ "slots" set-word-prop ]
-    [ define-accessors ] ! new
-    [ define-slots ] ! old
-    2tri ;
+    dup dup "slots" word-prop finalize-tuple-slots
+    define-accessors ;
 
 : make-tuple-layout ( class -- layout )
     [ ]
-    [ [ superclass-size ] [ slot-names length ] bi + ]
+    [ [ superclass-size ] [ "slots" word-prop length ] bi + ]
     [ superclasses dup length 1- ] tri
     <tuple-layout> ;
 
 : define-tuple-layout ( class -- )
     dup make-tuple-layout "layout" set-word-prop ;
 
-: compute-slot-permutation ( class old-slot-names -- permutation )
-    >r all-slot-names r> [ index ] curry map ;
+: compute-slot-permutation ( new-slots old-slots -- triples )
+    [ [ [ name>> ] map ] bi@ [ index ] curry map ]
+    [ drop [ class>> ] map ]
+    [ drop [ initial>> ] map ]
+    2tri 3array flip ;
 
-: apply-slot-permutation ( old-values permutation -- new-values )
-    [ [ swap ?nth ] [ drop f ] if* ] with map ;
+: update-slot ( old-values n class initial -- value )
+    pick [
+        >r >r swap nth dup r> instance? r> swap
+        [ drop ] [ nip ] if
+    ] [ >r 3drop r> ] if ;
 
-: permute-slots ( old-values -- new-values )
-    dup first dup outdated-tuples get at
+: apply-slot-permutation ( old-values triples -- new-values )
+    [ first3 update-slot ] with map ;
+
+: permute-slots ( old-values layout -- new-values )
+    [ class>> all-slots ] [ outdated-tuples get at ] bi
     compute-slot-permutation
     apply-slot-permutation ;
 
-: change-tuple ( tuple quot -- newtuple )
-    >r tuple>array r> call >tuple ; inline
-
 : update-tuple ( tuple -- newtuple )
-    [ permute-slots ] change-tuple ;
+    [ tuple-slots ] [ layout-of ] bi
+    [ permute-slots ] [ class>> ] bi
+    slots>tuple ;
+
+: outdated-tuple? ( tuple assoc -- ? )
+    over tuple? [
+        [ [ layout-of ] dip key? ]
+        [ drop class "forgotten" word-prop not ]
+        2bi and
+    ] [ 2drop f ] if ;
 
 : update-tuples ( -- )
     outdated-tuples get
     dup assoc-empty? [ drop ] [
-        [ >r class r> key? ] curry instances
+        [ outdated-tuple? ] curry instances
         dup [ update-tuple ] map become
     ] if ;
 
 [ update-tuples ] update-tuples-hook set-global
 
 : update-tuples-after ( class -- )
-    outdated-tuples get [ all-slot-names ] cache drop ;
+    [ all-slots ] [ tuple-layout ] bi outdated-tuples get set-at ;
 
 M: tuple-class update-class
-    [ define-tuple-layout ]
-    [ define-tuple-slots ]
-    [ define-tuple-predicate ]
-    tri ;
+    {
+        [ define-boa-check ]
+        [ define-tuple-layout ]
+        [ define-tuple-slots ]
+        [ define-tuple-predicate ]
+        [ define-tuple-prototype ]
+    } cleave ;
 
 : define-new-tuple-class ( class superclass slots -- )
+    make-slots
     [ drop f f tuple-class define-class ]
-    [ nip "slot-names" set-word-prop ]
+    [ nip "slots" set-word-prop ]
     [ 2drop update-classes ]
     3tri ;
 
 : subclasses ( class -- classes )
-    class-usages keys [ tuple-class? ] filter ;
+    class-usages [ tuple-class? ] filter ;
 
 : each-subclass ( class quot -- )
     >r subclasses r> each ; inline
@@ -176,16 +224,15 @@ M: tuple-class update-class
         2drop
         [
             [ update-tuples-after ]
-            [ changed-definition ]
             [ redefined ]
-            tri
+            bi
         ] each-subclass
     ]
     [ define-new-tuple-class ]
     3bi ;
 
 : tuple-class-unchanged? ( class superclass slots -- ? )
-    rot tuck [ superclass = ] [ slot-names = ] 2bi* and ;
+    rot tuck [ superclass = ] [ "slots" word-prop = ] 2bi* and ;
 
 : valid-superclass? ( class -- ? )
     [ tuple-class? ] [ tuple eq? ] bi or ;
@@ -202,37 +249,54 @@ M: word define-tuple-class
     define-new-tuple-class ;
 
 M: tuple-class define-tuple-class
+    over check-superclass
     3dup tuple-class-unchanged?
-    [ over check-superclass 3dup redefine-tuple-class ] unless
-    3drop ;
+    [ 3drop ] [ redefine-tuple-class ] if ;
+
+: thrower-effect ( slots -- effect )
+    [ dup array? [ first ] when ] map f <effect> t >>terminated? ;
 
 : define-error-class ( class superclass slots -- )
-    [ define-tuple-class ] [ 2drop ] 3bi
-    dup [ boa throw ] curry define ;
+    [ define-tuple-class ]
+    [ 2drop reset-generic ]
+    [
+        [ dup [ boa throw ] curry ]
+        [ drop ]
+        [ thrower-effect ]
+        tri* define-declared
+    ] 3tri ;
 
 M: tuple-class reset-class
     [
-        dup "slot-names" word-prop [
+        dup "slots" word-prop [
+            name>>
             [ reader-word method forget ]
             [ writer-word method forget ] 2bi
         ] with each
     ] [
-        {
-            "class"
-            "metaclass"
-            "superclass"
-            "layout"
-            "slots"
-        } reset-props
+        [ call-next-method ]
+        [ { "layout" "slots" "boa-check" "prototype" } reset-props ]
+        bi
     ] bi ;
 
 M: tuple-class rank-class drop 0 ;
 
-M: tuple clone
-    (clone) dup delegate clone over set-delegate ;
+M: tuple-class instance?
+    dup tuple-layout echelon>> tuple-instance? ;
 
-M: tuple equal?
-    over tuple? [ tuple= ] [ 2drop f ] if ;
+M: tuple-class (flatten-class) dup set ;
+
+M: tuple-class (classes-intersect?)
+    {
+        { [ over tuple eq? ] [ 2drop t ] }
+        { [ over builtin-class? ] [ 2drop f ] }
+        { [ over tuple-class? ] [ [ class<= ] [ swap class<= ] 2bi or ] }
+        [ swap classes-intersect? ]
+    } cond ;
+
+M: tuple clone (clone) ;
+
+M: tuple equal? over tuple? [ tuple= ] [ 2drop f ] if ;
 
 M: tuple hashcode*
     [
@@ -242,13 +306,13 @@ M: tuple hashcode*
         ] 2curry each
     ] recursive-hashcode ;
 
-! Deprecated
-M: object get-slots ( obj slots -- ... )
-    [ execute ] with each ;
+M: tuple-class new
+    dup "prototype" word-prop
+    [ (clone) ] [ tuple-layout <tuple> ] ?if ;
 
-M: object set-slots ( ... obj slots -- )
-    <reversed> get-slots ;
+M: tuple-class boa
+    [ "boa-check" word-prop call ]
+    [ tuple-layout ]
+    bi <tuple-boa> ;
 
-: delegates ( obj -- seq ) [ delegate ] follow ;
-
-: is? ( obj quot -- ? ) >r delegates r> contains? ; inline
+M: tuple-class initial-value* new ;
diff --git a/core/classes/union/union-tests.factor b/core/classes/union/union-tests.factor
new file mode 100644
index 0000000000..97baf08874
--- /dev/null
+++ b/core/classes/union/union-tests.factor
@@ -0,0 +1,89 @@
+USING: alien arrays definitions generic assocs hashtables io
+kernel math namespaces parser prettyprint sequences strings
+tools.test vectors words quotations classes
+classes.private classes.union classes.mixin classes.predicate
+classes.algebra vectors definitions source-files
+compiler.units kernel.private sorting vocabs io.streams.string
+eval ;
+IN: classes.union.tests
+
+! DEFER: bah
+! FORGET: bah
+UNION: bah fixnum alien ;
+[ bah ] [ \ bah? "predicating" word-prop ] unit-test
+
+[ "USING: alien math ;\nIN: classes.union.tests\nUNION: bah fixnum alien ;\n" ]
+[ [ \ bah see ] with-string-writer ] unit-test
+
+! Test redefinition of classes
+UNION: union-1 fixnum float ;
+
+GENERIC: generic-update-test ( x -- y )
+
+M: union-1 generic-update-test drop "union-1" ;
+
+[ f ] [ bignum union-1 class<= ] unit-test
+[ t ] [ union-1 number class<= ] unit-test
+[ "union-1" ] [ 1.0 generic-update-test ] unit-test
+
+"IN: classes.union.tests USE: math USE: arrays UNION: union-1 rational array ;" eval
+
+[ t ] [ bignum union-1 class<= ] unit-test
+[ f ] [ union-1 number class<= ] unit-test
+[ "union-1" ] [ { 1.0 } generic-update-test ] unit-test
+
+"IN: classes.union.tests USE: math PREDICATE: union-1 < integer even? ;" eval
+
+[ f ] [ union-1 union-class? ] unit-test
+[ t ] [ union-1 predicate-class? ] unit-test
+[ "union-1" ] [ 8 generic-update-test ] unit-test
+[ -7 generic-update-test ] must-fail
+
+! Empty unions were causing problems
+GENERIC: empty-union-test ( obj -- obj )
+
+UNION: empty-union-1 ;
+
+M: empty-union-1 empty-union-test ;
+
+UNION: empty-union-2 ;
+
+M: empty-union-2 empty-union-test ;
+
+! Redefining a class didn't update containing unions
+UNION: redefine-bug-1 fixnum ;
+
+UNION: redefine-bug-2 redefine-bug-1 quotation ;
+
+[ t ] [ fixnum redefine-bug-2 class<= ] unit-test
+[ t ] [ quotation redefine-bug-2 class<= ] unit-test
+
+[ ] [ "IN: classes.union.tests USE: math UNION: redefine-bug-1 bignum ;" eval ] unit-test
+
+[ t ] [ bignum redefine-bug-1 class<= ] unit-test
+[ f ] [ fixnum redefine-bug-2 class<= ] unit-test
+[ t ] [ bignum redefine-bug-2 class<= ] unit-test
+
+! Too eager with reset-class
+
+[ ] [ "IN: classes.union.tests SINGLETON: foo UNION: blah foo ;" <string-reader> "union-reset-test" parse-stream drop ] unit-test
+
+[ t ] [ "blah" "classes.union.tests" lookup union-class? ] unit-test
+
+[ ] [ "IN: classes.union.tests USE: math UNION: blah integer ;" <string-reader> "union-reset-test" parse-stream drop ] unit-test
+
+[ t ] [ "blah" "classes.union.tests" lookup union-class? ] unit-test
+
+GENERIC: test-generic ( x -- y )
+
+TUPLE: a-tuple ;
+
+UNION: a-union a-tuple ;
+
+M: a-union test-generic ;
+
+[ f ] [ \ test-generic "methods" word-prop assoc-empty? ] unit-test
+
+[ ] [ [ \ a-tuple forget-class ] with-compilation-unit ] unit-test
+
+[ t ] [ \ test-generic "methods" word-prop assoc-empty? ] unit-test
diff --git a/core/classes/union/union.factor b/core/classes/union/union.factor
index 923c11183f..81a0db52be 100755
--- a/core/classes/union/union.factor
+++ b/core/classes/union/union.factor
@@ -1,33 +1,37 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: words sequences kernel assocs combinators classes
-namespaces arrays math quotations ;
+classes.algebra namespaces arrays math quotations ;
 IN: classes.union
 
 PREDICATE: union-class < class
     "metaclass" word-prop union-class eq? ;
 
 : union-predicate-quot ( members -- quot )
-    dup empty? [
-        drop [ drop f ]
+    [
+        [ drop f ]
     ] [
         unclip "predicate" word-prop swap [
             "predicate" word-prop [ dup ] prepend
             [ drop t ]
         ] { } map>assoc alist>quot
-    ] if ;
+    ] if-empty ;
 
 : define-union-predicate ( class -- )
     dup members union-predicate-quot define-predicate ;
 
 M: union-class update-class define-union-predicate ;
 
-: define-union-class ( class members -- )
-    [ f swap f union-class define-class ]
-    [ drop update-classes ]
-    2bi ;
+: (define-union-class) ( class members -- )
+    f swap f union-class define-class ;
 
-M: union-class reset-class
-    { "class" "metaclass" "members" } reset-props ;
+: define-union-class ( class members -- )
+    [ (define-union-class) ] [ drop update-classes ] 2bi ;
 
 M: union-class rank-class drop 2 ;
+
+M: union-class instance?
+    "members" word-prop [ instance? ] with contains? ;
+
+M: union-class (flatten-class)
+    members <anonymous-union> (flatten-class) ;
diff --git a/core/combinators/combinators-docs.factor b/core/combinators/combinators-docs.factor
index c65c01d2ab..a494c09b05 100755
--- a/core/combinators/combinators-docs.factor
+++ b/core/combinators/combinators-docs.factor
@@ -16,6 +16,10 @@ $nl
 { $subsection while }
 "Generalization of " { $link bi } " and " { $link tri } ":"
 { $subsection cleave }
+"Generalization of " { $link 2bi } " and " { $link 2tri } ":"
+{ $subsection 2cleave }
+"Generalization of " { $link 3bi } " and " { $link 3tri }  ":"
+{ $subsection 3cleave }
 "Generalization of " { $link bi* } " and " { $link tri* } ":"
 { $subsection spread }
 "Two combinators which abstract out nested chains of " { $link if } ":"
@@ -25,11 +29,17 @@ $nl
 $nl
 "A combinator which can help with implementing methods on " { $link hashcode* } ":"
 { $subsection recursive-hashcode }
-"An oddball combinator:"
-{ $subsection with-datastack }
+{ $subsection "assertions" }
 { $subsection "combinators-quot" }
 { $see-also "quotations" "dataflow" } ;
 
+ARTICLE: "assertions" "Assertions"
+"Some words to make assertions easier to enforce:"
+{ $subsection assert }
+{ $subsection assert= }
+"Runtime stack depth checking:"
+{ $subsection assert-depth } ;
+
 ABOUT: "combinators"
 
 HELP: cleave
@@ -44,6 +54,16 @@ HELP: cleave
     }
 } ;
 
+HELP: 2cleave
+{ $values { "x" object } { "y" object }
+          { "seq" "a sequence of quotations with stack effect " { $snippet "( x y -- ... )" } } }
+{ $description "Applies each quotation to the two objects in turn." } ;
+
+HELP: 3cleave
+{ $values { "x" object } { "y" object } { "z" object }
+          { "seq" "a sequence of quotations with stack effect " { $snippet "( x y z -- ... )" } } }
+{ $description "Applies each quotation to the three objects in turn." } ;
+
 { bi tri cleave } related-words
 
 HELP: spread
@@ -116,13 +136,6 @@ HELP: no-case
 { $description "Throws a " { $link no-case } " error." }
 { $error-description "Thrown by " { $link case } " if the object at the top of the stack does not match any case, and no default case is given." } ;
 
-HELP: with-datastack
-{ $values { "stack" sequence } { "quot" quotation } { "newstack" sequence } }
-{ $description "Executes the quotation with the given data stack contents, and outputs the new data stack after the word returns. The input sequence is not modified. Does not affect the data stack in surrounding code, other than consuming the two inputs and pushing the output." }
-{ $examples
-    { $example "USING: combinators math prettyprint ;" "{ 3 7 } [ + ] with-datastack ." "{ 10 }" }
-} ;
-
 HELP: recursive-hashcode
 { $values { "n" integer } { "obj" object } { "quot" "a quotation with stack effect " { $snippet "( n obj -- code )" } } { "code" integer } }
 { $description "A combinator used to implement methods for the " { $link hashcode* } " generic word. If " { $snippet "n" } " is less than or equal to zero, outputs 0, otherwise calls the quotation." } ;
@@ -146,7 +159,7 @@ $nl
 } } ;
 
 HELP: distribute-buckets
-{ $values { "assoc" "an alist" } { "initial" object } { "quot" "a quotation with stack effect " { $snippet "( obj -- assoc )" } } { "buckets" "a new array" } }
+{ $values { "alist" "an alist" } { "initial" object } { "quot" "a quotation with stack effect " { $snippet "( obj -- assoc )" } } { "buckets" "a new array" } }
 { $description "Sorts the entries of " { $snippet "assoc" } " into buckets, using the quotation to yield a set of keys for each entry. The hashcode of each key is computed, and the entry is placed in all corresponding buckets. Each bucket is initially cloned from " { $snippet "initial" } "; this should either be an empty vector or a one-element vector containing a pair." }
 { $notes "This word is used in the implemention of " { $link hash-case-quot } " and " { $link standard-combination } "." } ;
 
@@ -154,3 +167,7 @@ HELP: dispatch ( n array -- )
 { $values { "n" "a fixnum" } { "array" "an array of quotations" } }
 { $description "Calls the " { $snippet "n" } "th quotation in the array." }
 { $warning "This word is in the " { $vocab-link "kernel.private" } " vocabulary because it is an implementation detail used by the generic word system to accelerate method dispatch. It does not perform type or bounds checks, and user code should not need to call it directly." } ;
+
+HELP: assert-depth
+{ $values { "quot" "a quotation" } }
+{ $description "Runs a quotation. Throws an error if the total number of elements on the stack is not the same before and after the quotation runs." } ;
diff --git a/core/combinators/combinators-tests.factor b/core/combinators/combinators-tests.factor
index b612669b71..5a56d2b636 100755
--- a/core/combinators/combinators-tests.factor
+++ b/core/combinators/combinators-tests.factor
@@ -1,5 +1,6 @@
 USING: alien strings kernel math tools.test io prettyprint
-namespaces combinators words classes sequences ;
+namespaces combinators words classes sequences accessors 
+math.functions ;
 IN: combinators.tests
 
 ! Compiled
@@ -140,7 +141,7 @@ IN: combinators.tests
 [ "two" ] [ 2 case-test-1 ] unit-test
 
 ! Interpreted
-[ "two" ] [ 2 \ case-test-1 word-def call ] unit-test
+[ "two" ] [ 2 \ case-test-1 def>> call ] unit-test
 
 [ "x" case-test-1 ] must-fail
 
@@ -158,7 +159,7 @@ IN: combinators.tests
 [ 25 ] [ 5 case-test-2 ] unit-test
 
 ! Interpreted
-[ 25 ] [ 5 \ case-test-2 word-def call ] unit-test
+[ 25 ] [ 5 \ case-test-2 def>> call ] unit-test
 
 : case-test-3 ( obj -- obj' )
     {
@@ -257,12 +258,14 @@ IN: combinators.tests
 
 : do-not-call "do not call" throw ;
 
-: test-case-6
+: test-case-6 ( obj -- value )
     {
         { \ do-not-call [ "do-not-call" ] }
         { 3 [ "three" ] }
     } case ;
 
+\ test-case-6 must-infer
+
 [ "three" ] [ 3 test-case-6 ] unit-test
 [ "do-not-call" ] [ \ do-not-call test-case-6 ] unit-test
 
@@ -288,11 +291,26 @@ IN: combinators.tests
 ] unit-test
 
 ! Interpreted
-[ "a hashtable" ] [ H{ } \ case-test-3 word-def call ] unit-test
+[ "a hashtable" ] [ H{ } \ case-test-3 def>> call ] unit-test
 
-[ 1 3 t ] [ { 1 3 2 } contiguous-range? ] unit-test
-[ f ] [ { 1 2 2 4 } contiguous-range? 2nip ] unit-test
-[ f ] [ { + 3 2 } contiguous-range? 2nip ] unit-test
-[ f ] [ { 1 0 7 } contiguous-range? 2nip ] unit-test
-[ f ] [ { 1 1 3 7 } contiguous-range? 2nip ] unit-test
-[ 4 8 t ] [ { 7 6 4 8 5 } contiguous-range? ] unit-test
+[ t ] [ { 1 3 2 } contiguous-range? ] unit-test
+[ f ] [ { 1 2 2 4 } contiguous-range? ] unit-test
+[ f ] [ { + 3 2 } contiguous-range? ] unit-test
+[ f ] [ { 1 0 7 } contiguous-range? ] unit-test
+[ f ] [ { 1 1 3 7 } contiguous-range? ] unit-test
+[ t ] [ { 7 6 4 8 5 } contiguous-range? ] unit-test
+
+: test-case-7 ( obj -- str )
+    {
+        { \ + [ "plus" ] }
+        { \ - [ "minus" ] }
+        { \ * [ "times" ] }
+        { \ / [ "divide" ] }
+        { \ ^ [ "power" ] }
+        { \ [ [ "obama" ] }
+        { \ ] [ "KFC" ] }
+    } case ;
+
+\ test-case-7 must-infer
+
+[ "plus" ] [ \ + test-case-7 ] unit-test
diff --git a/core/combinators/combinators.factor b/core/combinators/combinators.factor
index f6873429fe..4a362a7f9d 100755
--- a/core/combinators/combinators.factor
+++ b/core/combinators/combinators.factor
@@ -1,36 +1,42 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays sequences sequences.private math.private
+USING: accessors arrays sequences sequences.private math.private
 kernel kernel.private math assocs quotations vectors
 hashtables sorting words sets math.order ;
 IN: combinators
 
+! cleave
 : cleave ( x seq -- )
     [ call ] with each ;
 
 : cleave>quot ( seq -- quot )
     [ [ keep ] curry ] map concat [ drop ] append [ ] like ;
 
-: 2cleave ( x seq -- )
+! 2cleave
+: 2cleave ( x y seq -- )
     [ 2keep ] each 2drop ;
 
 : 2cleave>quot ( seq -- quot )
     [ [ 2keep ] curry ] map concat [ 2drop ] append [ ] like ;
 
-: 3cleave ( x seq -- )
+! 3cleave
+: 3cleave ( x y z seq -- )
     [ 3keep ] each 3drop ;
 
 : 3cleave>quot ( seq -- quot )
     [ [ 3keep ] curry ] map concat [ 3drop ] append [ ] like ;
 
+! spread
 : spread>quot ( seq -- quot )
-    [ length [ >r ] <repetition> concat ]
-    [ [ [ r> ] prepend ] map concat ] bi
-    append [ ] like ;
+    [ ] [
+        [ dup empty? [ [ >r ] swap [ r> ] 3append ] unless ] dip
+        append
+    ] reduce ;
 
 : spread ( objs... seq -- )
     spread>quot call ;
 
+! cond
 ERROR: no-cond ;
 
 : cond ( assoc -- )
@@ -38,14 +44,23 @@ ERROR: no-cond ;
     [ dup callable? [ call ] [ second call ] if ]
     [ no-cond ] if* ;
 
+: alist>quot ( default assoc -- quot )
+    [ rot \ if 3array append [ ] like ] assoc-each ;
+
+: cond>quot ( assoc -- quot )
+    [ dup callable? [ [ t ] swap 2array ] when ] map
+    reverse [ no-cond ] swap alist>quot ;
+
+! case
 ERROR: no-case ;
+
 : case-find ( obj assoc -- obj' )
     [
         dup array? [
             dupd first dup word? [
                 execute
             ] [
-                dup wrapper? [ wrapped ] when
+                dup wrapper? [ wrapped>> ] when
             ] if =
         ] [ quotation? ] if
     ] find nip ;
@@ -57,36 +72,6 @@ ERROR: no-case ;
         { [ dup not ] [ no-case ] }
     } cond ;
 
-: with-datastack ( stack quot -- newstack )
-    datastack >r
-    >r >array set-datastack r> call
-    datastack r> swap suffix set-datastack 2nip ; inline
-
-: recursive-hashcode ( n obj quot -- code )
-    pick 0 <= [ 3drop 0 ] [ rot 1- -rot call ] if ; inline
-
-! These go here, not in sequences and hashtables, since those
-! two depend on combinators
-M: sequence hashcode*
-    [ sequence-hashcode ] recursive-hashcode ;
-
-M: reversed hashcode* [ sequence-hashcode ] recursive-hashcode ;
-
-M: slice hashcode* [ sequence-hashcode ] recursive-hashcode ;
-
-M: hashtable hashcode*
-    [
-        dup assoc-size 1 number=
-        [ assoc-hashcode ] [ nip assoc-size ] if
-    ] recursive-hashcode ;
-
-: alist>quot ( default assoc -- quot )
-    [ rot \ if 3array append [ ] like ] assoc-each ;
-
-: cond>quot ( assoc -- quot )
-    [ dup callable? [ [ t ] swap 2array ] when ] map
-    reverse [ no-cond ] swap alist>quot ;
-
 : linear-case-quot ( default assoc -- quot )
     [
         [ 1quotation \ dup prefix \ = suffix ]
@@ -105,14 +90,14 @@ M: hashtable hashcode*
 : <buckets> ( initial length -- array )
     next-power-of-2 swap [ nip clone ] curry map ;
 
-: distribute-buckets ( assoc initial quot -- buckets )
-    spin [ length <buckets> ] keep
-    [ >r 2dup r> dup first roll call (distribute-buckets) ] each
-    nip ; inline
+: distribute-buckets ( alist initial quot -- buckets )
+    swapd [ >r dup first r> call 2array ] curry map
+    [ length <buckets> dup ] keep
+    [ first2 (distribute-buckets) ] with each ; inline
 
 : hash-case-table ( default assoc -- array )
     V{ } [ 1array ] distribute-buckets
-    [ linear-case-quot ] with map ;
+    [ [ >r literalize r> ] assoc-map linear-case-quot ] with map ;
 
 : hash-dispatch-quot ( table -- quot )
     [ length 1- [ fixnum-bitand ] curry ] keep
@@ -122,42 +107,67 @@ M: hashtable hashcode*
     hash-case-table hash-dispatch-quot
     [ dup hashcode >fixnum ] prepend ;
 
-: contiguous-range? ( keys -- from to ? )
+: contiguous-range? ( keys -- ? )
     dup [ fixnum? ] all? [
         dup all-unique? [
-            dup infimum over supremum
-            [ - swap prune length + 1 = ] 2keep rot
-        ] [
-            drop f f f
-        ] if
-    ] [
-        drop f f f
-    ] if ;
+            [ prune length ]
+            [ [ supremum ] [ infimum ] bi - ]
+            bi - 1 =
+        ] [ drop f ] if
+    ] [ drop f ] if ;
 
 : dispatch-case ( value from to default array -- )
-    >r >r 3dup between? [
-        drop - >fixnum r> drop r> dispatch
+    >r >r 3dup between? r> r> rot [
+        >r 2drop - >fixnum r> dispatch
     ] [
-        2drop r> call r> drop
+        drop 2nip call
     ] if ; inline
 
-: dispatch-case-quot ( default assoc from to -- quot )
-    -roll -roll sort-keys values [ >quotation ] map
+: dispatch-case-quot ( default assoc -- quot )
+    [ nip keys [ infimum ] [ supremum ] bi ] 2keep
+    sort-keys values [ >quotation ] map
     [ dispatch-case ] 2curry 2curry ;
 
 : case>quot ( default assoc -- quot )
-    dup empty? [
-        drop
-    ] [
-        dup length 4 <=
-        over keys [ [ word? ] [ wrapper? ] bi or ] contains? or
-        [
-            linear-case-quot
-        ] [
-            dup keys contiguous-range? [
-                dispatch-case-quot
-            ] [
-                2drop hash-case-quot
-            ] if
-        ] if
-    ] if ;
+    dup keys {
+        { [ dup empty? ] [ 2drop ] }
+        { [ dup [ length 4 <= ] [ [ word? ] contains? ] bi or ] [ drop linear-case-quot ] }
+        { [ dup contiguous-range? ] [ drop dispatch-case-quot ] }
+        { [ dup [ wrapper? ] contains? not ] [ drop hash-case-quot ] }
+        { [ dup [ wrapper? ] all? ] [ drop [ >r wrapped>> r> ] assoc-map hash-case-quot ] }
+        [ drop linear-case-quot ]
+    } cond ;
+
+! assert-depth
+: trim-datastacks ( seq1 seq2 -- seq1' seq2' )
+    2dup [ length ] bi@ min tuck tail >r tail r> ;
+
+ERROR: relative-underflow stack ;
+
+ERROR: relative-overflow stack ;
+
+: assert-depth ( quot -- )
+    >r datastack r> dip >r datastack r>
+    2dup [ length ] compare {
+        { +lt+ [ trim-datastacks nip relative-underflow ] }
+        { +eq+ [ 2drop ] }
+        { +gt+ [ trim-datastacks drop relative-overflow ] }
+    } case ; inline
+
+! recursive-hashcode
+: recursive-hashcode ( n obj quot -- code )
+    pick 0 <= [ 3drop 0 ] [ rot 1- -rot call ] if ; inline
+
+! These go here, not in sequences and hashtables, since those
+! two cannot depend on us
+M: sequence hashcode* [ sequence-hashcode ] recursive-hashcode ;
+
+M: reversed hashcode* [ sequence-hashcode ] recursive-hashcode ;
+
+M: slice hashcode* [ sequence-hashcode ] recursive-hashcode ;
+
+M: hashtable hashcode*
+    [
+        dup assoc-size 1 number=
+        [ assoc-hashcode ] [ nip assoc-size ] if
+    ] recursive-hashcode ;
diff --git a/core/compiler/compiler.factor b/core/compiler/compiler.factor
deleted file mode 100755
index ef00e94dd5..0000000000
--- a/core/compiler/compiler.factor
+++ /dev/null
@@ -1,83 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel namespaces arrays sequences io inference.backend
-inference.state generator debugger words compiler.units
-continuations vocabs assocs alien.compiler dlists optimizer
-definitions math compiler.errors threads graphs generic
-inference combinators ;
-IN: compiler
-
-: ripple-up ( word -- )
-    compiled-usage [ drop queue-compile ] assoc-each ;
-
-: save-effect ( word effect -- )
-    [
-        over "compiled-effect" word-prop = [
-            dup "compiled-uses" word-prop
-            [ dup ripple-up ] when
-        ] unless drop
-    ]
-    [ "compiled-effect" set-word-prop ] 2bi ;
-
-: compile-begins ( word -- )
-    f swap compiler-error ;
-
-: compile-failed ( word error -- )
-    [ swap compiler-error ]
-    [
-        drop
-        [ f swap compiled get set-at ]
-        [ f save-effect ]
-        bi
-    ] 2bi ;
-
-: compile-succeeded ( effect word -- )
-    [ swap save-effect ]
-    [ compiled-unxref ]
-    [
-        dup compiled-crossref?
-        [ dependencies get compiled-xref ] [ drop ] if
-    ] tri ;
-
-: (compile) ( word -- )
-    [
-        H{ } clone dependencies set
-
-        {
-            [ compile-begins ]
-            [
-                [ word-dataflow ] [ compile-failed return ] recover
-                optimize
-            ]
-            [ dup generate ]
-            [ compile-succeeded ]
-        } cleave
-    ] curry with-return ;
-
-: compile-loop ( assoc -- )
-    dup assoc-empty? [ drop ] [
-        dup delete-any drop (compile)
-        yield
-        compile-loop
-    ] if ;
-
-: decompile ( word -- )
-    f 2array 1array t modify-code-heap ;
-
-: optimized-recompile-hook ( words -- alist )
-    [
-        H{ } clone compile-queue set
-        H{ } clone compiled set
-        [ queue-compile ] each
-        compile-queue get compile-loop
-        compiled get >alist
-    ] with-scope ;
-
-: enable-compiler ( -- )
-    [ optimized-recompile-hook ] recompile-hook set-global ;
-
-: disable-compiler ( -- )
-    [ default-recompile-hook ] recompile-hook set-global ;
-
-: recompile-all ( -- )
-    forget-errors all-words compile ;
diff --git a/core/compiler/constants/constants.factor b/core/compiler/constants/constants.factor
deleted file mode 100755
index 8610f490ec..0000000000
--- a/core/compiler/constants/constants.factor
+++ /dev/null
@@ -1,23 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: math kernel layouts system ;
-IN: compiler.constants
-
-! These constants must match vm/memory.h
-: card-bits 8 ;
-: deck-bits 18 ;
-: card-mark HEX: 40 HEX: 80 bitor ;
-
-! These constants must match vm/layouts.h
-: header-offset object tag-number neg ;
-: float-offset 8 float tag-number - ;
-: string-offset 4 bootstrap-cells object tag-number - ;
-: profile-count-offset 7 bootstrap-cells object tag-number - ;
-: byte-array-offset 2 bootstrap-cells object tag-number - ;
-: alien-offset 3 bootstrap-cells object tag-number - ;
-: underlying-alien-offset bootstrap-cell object tag-number - ;
-: tuple-class-offset bootstrap-cell tuple tag-number - ;
-: class-hash-offset bootstrap-cell object tag-number - ;
-: word-xt-offset 8 bootstrap-cells object tag-number - ;
-: word-code-offset 9 bootstrap-cells object tag-number - ;
-: compiled-header-size 4 bootstrap-cells ;
diff --git a/core/compiler/errors/errors.factor b/core/compiler/errors/errors.factor
index e7dc5156e4..e21348fd19 100755
--- a/core/compiler/errors/errors.factor
+++ b/core/compiler/errors/errors.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel namespaces assocs prettyprint io sequences
-sorting continuations debugger math math.parser ;
+USING: kernel namespaces assocs io sequences
+sorting continuations math math.parser ;
 IN: compiler.errors
 
 SYMBOL: +error+
@@ -12,18 +12,14 @@ GENERIC: compiler-error-type ( error -- ? )
 
 M: object compiler-error-type drop +error+ ;
 
+GENERIC# compiler-error. 1 ( error word -- )
+
 <PRIVATE
 
 SYMBOL: compiler-errors
 
 SYMBOL: with-compiler-errors?
 
-: compiler-error. ( error word -- )
-    nl
-    "While compiling " write pprint ": " print
-    nl
-    print-error ;
-
 : errors-of-type ( type -- assoc )
     compiler-errors get-global
     swap [ >r nip compiler-error-type r> eq? ] curry
@@ -53,18 +49,18 @@ SYMBOL: with-compiler-errors?
 
 PRIVATE>
 
+: :errors ( -- ) +error+ compiler-errors. ;
+
+: :warnings ( -- ) +warning+ compiler-errors. ;
+
+: :linkage ( -- ) +linkage+ compiler-errors. ;
+
 : compiler-error ( error word -- )
     with-compiler-errors? get [
         compiler-errors get pick
         [ set-at ] [ delete-at drop ] if
     ] [ 2drop ] if ;
 
-: :errors +error+ compiler-errors. ;
-
-: :warnings +warning+ compiler-errors. ;
-
-: :linkage +linkage+ compiler-errors. ;
-
 : with-compiler-errors ( quot -- )
     with-compiler-errors? get "quiet" get or [ call ] [
         [
diff --git a/core/compiler/tests/tuples.factor b/core/compiler/tests/tuples.factor
deleted file mode 100755
index 2b43ac6f56..0000000000
--- a/core/compiler/tests/tuples.factor
+++ /dev/null
@@ -1,24 +0,0 @@
-IN: compiler.tests
-USING: kernel tools.test compiler.units ;
-
-TUPLE: color red green blue ;
-
-[ T{ color f 1 2 3 } ]
-[ 1 2 3 [ color boa ] compile-call ] unit-test
-
-[ 1 3 ] [
-    1 2 3 color boa
-    [ { color-red color-blue } get-slots ] compile-call
-] unit-test
-
-[ T{ color f 10 2 20 } ] [
-    10 20
-    1 2 3 color boa [
-        [
-            { set-color-red set-color-blue } set-slots
-        ] compile-call
-    ] keep
-] unit-test
-
-[ T{ color f f f f } ]
-[ [ color new ] compile-call ] unit-test
diff --git a/core/compiler/units/units-tests.factor b/core/compiler/units/units-tests.factor
new file mode 100644
index 0000000000..b30e92bbfd
--- /dev/null
+++ b/core/compiler/units/units-tests.factor
@@ -0,0 +1,9 @@
+IN: compiler.units.tests
+USING: definitions compiler.units tools.test arrays sequences ;
+
+[ flushed-dependency ] [ f flushed-dependency strongest-dependency ] unit-test
+[ flushed-dependency ] [ flushed-dependency f strongest-dependency ] unit-test
+[ inlined-dependency ] [ flushed-dependency inlined-dependency strongest-dependency ] unit-test
+[ inlined-dependency ] [ called-dependency inlined-dependency strongest-dependency ] unit-test
+[ flushed-dependency ] [ called-dependency flushed-dependency strongest-dependency ] unit-test
+[ called-dependency ] [ called-dependency f strongest-dependency ] unit-test
diff --git a/core/compiler/units/units.factor b/core/compiler/units/units.factor
index c2e84429cf..cb361ec9e6 100755
--- a/core/compiler/units/units.factor
+++ b/core/compiler/units/units.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel continuations assocs namespaces sequences words
-vocabs definitions hashtables init sets ;
+USING: accessors arrays kernel continuations assocs namespaces
+sequences words vocabs definitions hashtables init sets
+math math.order classes classes.algebra ;
 IN: compiler.units
 
 SYMBOL: old-definitions
@@ -54,7 +55,7 @@ GENERIC: definitions-changed ( assoc obj -- )
 
 : changed-vocabs ( assoc -- vocabs )
     [ drop word? ] assoc-filter
-    [ drop word-vocabulary dup [ vocab ] when dup ] assoc-map ;
+    [ drop vocabulary>> dup [ vocab ] when dup ] assoc-map ;
 
 : updated-definitions ( -- assoc )
     H{ } clone
@@ -66,37 +67,96 @@ GENERIC: definitions-changed ( assoc obj -- )
 
 : compile ( words -- )
     recompile-hook get call
-    dup [ drop compiled-crossref? ] assoc-contains?
+    dup [ drop crossref? ] assoc-contains?
     modify-code-heap ;
 
 SYMBOL: outdated-tuples
 SYMBOL: update-tuples-hook
 
+: dependency>= ( how1 how2 -- ? )
+    [
+        {
+            called-dependency
+            flushed-dependency
+            inlined-dependency
+        } index
+    ] bi@ >= ;
+
+: strongest-dependency ( how1 how2 -- how )
+    [ called-dependency or ] bi@ [ dependency>= ] most ;
+
+: weakest-dependency ( how1 how2 -- how )
+    [ inlined-dependency or ] bi@ [ dependency>= not ] most ;
+
+: compiled-usage ( word -- assoc )
+    compiled-crossref get at ;
+
+: (compiled-usages) ( word -- assoc )
+    #! If the word is not flushable anymore, we have to recompile
+    #! all words which flushable away a call (presumably when the
+    #! word was still flushable). If the word is flushable, we
+    #! don't have to recompile words that folded this away.
+    [ compiled-usage ]
+    [ "flushable" word-prop inlined-dependency flushed-dependency ? ] bi
+    [ dependency>= nip ] curry assoc-filter ;
+
+: compiled-usages ( assoc -- assocs )
+    [ drop word? ] assoc-filter
+    [ [ drop (compiled-usages) ] { } assoc>map ] keep suffix ;
+
+: compiled-generic-usage ( word -- assoc )
+    compiled-generic-crossref get at ;
+
+: (compiled-generic-usages) ( generic class -- assoc )
+    dup class? [
+        [ compiled-generic-usage ] dip
+        [ classes-intersect? nip ] curry assoc-filter
+    ] [ 2drop f ] if ;
+
+: compiled-generic-usages ( assoc -- assocs )
+    [ (compiled-generic-usages) ] { } assoc>map ;
+
+: words-only ( assoc -- assoc' )
+    [ drop word? ] assoc-filter ;
+
+: to-recompile ( -- seq )
+    changed-definitions get compiled-usages
+    changed-generics get compiled-generic-usages
+    append assoc-combine keys ;
+
 : call-recompile-hook ( -- )
-    changed-definitions get keys [ word? ] filter
-    compiled-usages recompile-hook get call ;
+    to-recompile recompile-hook get call ;
 
 : call-update-tuples-hook ( -- )
     update-tuples-hook get call ;
 
+: unxref-forgotten-definitions ( -- )
+    forgotten-definitions get
+    keys [ word? ] filter
+    [ delete-compiled-xref ] each ;
+
 : finish-compilation-unit ( -- )
     call-recompile-hook
     call-update-tuples-hook
-    dup [ drop compiled-crossref? ] assoc-contains? modify-code-heap
-     ;
+    unxref-forgotten-definitions
+    dup [ drop crossref? ] assoc-contains? modify-code-heap ;
 
 : with-nested-compilation-unit ( quot -- )
     [
         H{ } clone changed-definitions set
+        H{ } clone changed-generics set
         H{ } clone outdated-tuples set
+        H{ } clone new-classes set
         [ finish-compilation-unit ] [ ] cleanup
     ] with-scope ; inline
 
 : with-compilation-unit ( quot -- )
     [
         H{ } clone changed-definitions set
+        H{ } clone changed-generics set
         H{ } clone forgotten-definitions set
         H{ } clone outdated-tuples set
+        H{ } clone new-classes set
         <definitions> new-definitions set
         <definitions> old-definitions set
         [
diff --git a/core/continuations/continuations-docs.factor b/core/continuations/continuations-docs.factor
index 3cb7d8a71e..3949c4b566 100755
--- a/core/continuations/continuations-docs.factor
+++ b/core/continuations/continuations-docs.factor
@@ -1,6 +1,6 @@
 USING: help.markup help.syntax kernel kernel.private
-continuations.private parser vectors arrays namespaces
-assocs words quotations ;
+continuations.private vectors arrays namespaces
+assocs words quotations lexer sequences ;
 IN: continuations
 
 ARTICLE: "errors-restartable" "Restartable errors"
@@ -77,6 +77,8 @@ $nl
 "Another two words resume continuations:"
 { $subsection continue }
 { $subsection continue-with }
+"Reflecting the datastack:"
+{ $subsection with-datastack }
 "Continuations serve as the building block for a number of higher-level abstractions, such as " { $link "errors" } " and " { $link "threads" } "."
 { $subsection "continuations.private" } ;
 
@@ -169,8 +171,8 @@ HELP: rethrow
     "This word is intended to be used in conjunction with " { $link recover } " to implement error handlers which perform an action and pass the error to the next outermost error handler."
 }
 { $examples
-    "The " { $link with-parser } " catches errors, annotates them with file name and line number information, and rethrows them:"
-    { $see with-parser }
+    "The " { $link with-lexer } " word catches errors, annotates them with the current line and column number, and rethrows them:"
+    { $see with-lexer }
 } ;
 
 HELP: throw-restarts
@@ -202,3 +204,10 @@ HELP: save-error
 { $values { "error" "an error" } }
 { $description "Called by the error handler to set the " { $link error } " and " { $link restarts } " global variables after an error was thrown." }
 $low-level-note ;
+
+HELP: with-datastack
+{ $values { "stack" sequence } { "quot" quotation } { "newstack" sequence } }
+{ $description "Executes the quotation with the given data stack contents, and outputs the new data stack after the word returns. The input sequence is not modified. Does not affect the data stack in surrounding code, other than consuming the two inputs and pushing the output." }
+{ $examples
+    { $example "USING: continuations math prettyprint ;" "{ 3 7 } [ + ] with-datastack ." "{ 10 }" }
+} ;
diff --git a/core/continuations/continuations-tests.factor b/core/continuations/continuations-tests.factor
index 27e1f02b91..28658d67d7 100755
--- a/core/continuations/continuations-tests.factor
+++ b/core/continuations/continuations-tests.factor
@@ -1,6 +1,6 @@
 USING: kernel math namespaces io tools.test sequences vectors
 continuations debugger parser memory arrays words
-kernel.private accessors ;
+kernel.private accessors eval ;
 IN: continuations.tests
 
 : (callcc1-test)
@@ -66,7 +66,7 @@ IN: continuations.tests
 
 [ 1 3 2 ] [ bar ] unit-test
 
-[ t ] [ \ bar word-def "c" get innermost-frame-quot = ] unit-test
+[ t ] [ \ bar def>> "c" get innermost-frame-quot = ] unit-test
 
 [ 1 ] [ "c" get innermost-frame-scan ] unit-test
 
@@ -104,3 +104,7 @@ SYMBOL: error-counter
 [ ] [ [ return ] with-return ] unit-test
 
 [ { } [ ] attempt-all ] [ attempt-all-error? ] must-fail-with
+
+[ { 4 } ] [ { 2 2 } [ + ] with-datastack ] unit-test
+
+\ with-datastack must-infer
diff --git a/core/continuations/continuations.factor b/core/continuations/continuations.factor
index 76f2cdef7a..bfa3848186 100755
--- a/core/continuations/continuations.factor
+++ b/core/continuations/continuations.factor
@@ -19,14 +19,11 @@ SYMBOL: restarts
 
 : c> ( -- continuation ) catchstack* pop ;
 
-: dummy ( -- obj )
-    #! Optimizing compiler assumes stack won't be messed with
-    #! in-transit. To ensure that a value is actually reified
-    #! on the stack, we put it in a non-inline word together
-    #! with a declaration.
-    f { object } declare ;
+! We have to defeat some optimizations to make continuations work
+: dummy-1 ( -- obj ) f ;
+: dummy-2 ( obj -- obj ) dup drop ;
 
-: init-catchstack V{ } clone 1 setenv ;
+: init-catchstack ( -- ) V{ } clone 1 setenv ;
 
 PRIVATE>
 
@@ -68,7 +65,7 @@ C: <continuation> continuation
     #! ( value f r:capture r:restore )
     #! Execution begins right after the call to 'continuation'.
     #! The 'restore' branch is taken.
-    >r >r dummy continuation r> r> ?if ; inline
+    >r >r dummy-1 continuation r> r> [ dummy-2 ] prepose ?if ; inline
 
 : callcc0 ( quot -- ) [ drop ] ifcc ; inline
 
@@ -109,6 +106,14 @@ SYMBOL: return-continuation
 : return ( -- )
     return-continuation get continue ;
 
+: with-datastack ( stack quot -- newstack )
+    [
+        [
+            [ [ { } like set-datastack ] dip call datastack ] dip
+            continue-with
+        ] 3 (throw)
+    ] callcc1 2nip ;
+
 GENERIC: compute-restarts ( error -- seq )
 
 <PRIVATE
@@ -173,6 +178,23 @@ M: condition compute-restarts
     [ error>> compute-restarts ]
     [
         [ restarts>> ]
-        [ condition-continuation [ <restart> ] curry ] bi
+        [ continuation>> [ <restart> ] curry ] bi
         { } assoc>map
     ] bi append ;
+
+<PRIVATE
+
+: init-error-handler ( -- )
+    V{ } clone set-catchstack
+    ! VM calls on error
+    [
+        ! 63 = self
+        63 getenv error-thread set-global
+        continuation error-continuation set-global
+        rethrow
+    ] 5 setenv
+    ! VM adds this to kernel errors, so that user-space
+    ! can identify them
+    "kernel-error" 6 setenv ;
+
+PRIVATE>
diff --git a/core/cpu/ppc/assembler/assembler.factor b/core/cpu/ppc/assembler/assembler.factor
deleted file mode 100755
index b1d7016eff..0000000000
--- a/core/cpu/ppc/assembler/assembler.factor
+++ /dev/null
@@ -1,229 +0,0 @@
-! Copyright (C) 2005, 2006 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: generator.fixup generic kernel memory namespaces
-words math math.bitfields math.order io.binary ;
-IN: cpu.ppc.assembler
-
-! See the Motorola or IBM documentation for details. The opcode
-! names are standard, and the operand order is the same as in
-! the docs, except a few differences, namely, in IBM/Motorola
-! assembler syntax, loads and stores are written like:
-!
-! stw r14,10(r15)
-!
-! In Factor, we write:
-!
-! 14 15 10 STW
-
-: insn ( operand opcode -- ) { 26 0 } bitfield , ;
-: a-form ( d a b c xo rc -- n ) { 0 1 6 11 16 21 } bitfield ;
-: b-form ( bo bi bd aa lk -- n ) { 0 1 2 16 21 } bitfield ;
-: s>u16 ( s -- u ) HEX: ffff bitand ;
-: d-form ( d a simm -- n ) s>u16 { 0 16 21 } bitfield ;
-: sd-form ( d a simm -- n ) s>u16 { 0 21 16 } bitfield ;
-: i-form ( li aa lk -- n ) { 0 1 0 } bitfield ;
-: x-form ( a s b rc xo -- n ) { 1 0 11 21 16 } bitfield ;
-: xfx-form ( d spr xo -- n ) { 1 11 21 } bitfield ;
-: xo-form ( d a b oe rc xo -- n ) { 1 0 10 11 16 21 } bitfield ;
-
-: ADDI d-form 14 insn ;   : LI 0 rot ADDI ;   : SUBI neg ADDI ;
-: ADDIS d-form 15 insn ;  : LIS 0 rot ADDIS ;
-
-: ADDIC d-form 12 insn ;  : SUBIC neg ADDIC ;
-
-: ADDIC. d-form 13 insn ; : SUBIC. neg ADDIC. ;
-
-: MULI d-form 7 insn ;
-
-: (ADD) 266 xo-form 31 insn ;
-: ADD 0 0 (ADD) ;  : ADD. 0 1 (ADD) ;
-: ADDO 1 0 (ADD) ; : ADDO. 1 1 (ADD) ;
-
-: (ADDC) 10 xo-form 31 insn ;
-: ADDC 0 0 (ADDC) ;  : ADDC. 0 1 (ADDC) ;
-: ADDCO 1 0 (ADDC) ; : ADDCO. 1 1 (ADDC) ;
-
-: (ADDE) 138 xo-form 31 insn ;
-: ADDE 0 0 (ADDE) ;  : ADDE. 0 1 (ADDE) ;
-: ADDEO 1 0 (ADDE) ; : ADDEO. 1 1 (ADDE) ;
-
-: ANDI sd-form 28 insn ;
-: ANDIS sd-form 29 insn ;
-
-: (AND) 28 x-form 31 insn ;
-: AND 0 (AND) ;  : AND. 0 (AND) ;
-
-: (DIVW) 491 xo-form 31 insn ;
-: DIVW 0 0 (DIVW) ;  : DIVW. 0 1 (DIVW) ;
-: DIVWO 1 0 (DIVW) ; : DIVWO. 1 1 (DIVW) ;
-
-: (DIVWU) 459 xo-form 31 insn ;
-: DIVWU 0 0 (DIVWU) ;  : DIVWU. 0 1 (DIVWU) ;
-: DIVWUO 1 0 (DIVWU) ; : DIVWUO. 1 1 (DIVWU) ;
-
-: (EQV) 284 x-form 31 insn ;
-: EQV 0 (EQV) ;  : EQV. 1 (EQV) ;
-
-: (NAND) 476 x-form 31 insn ;
-: NAND 0 (NAND) ;  : NAND. 1 (NAND) ;
-
-: (NOR) 124 x-form 31 insn ;
-: NOR 0 (NOR) ;  : NOR. 1 (NOR) ;
-
-: NOT dup NOR ;   : NOT. dup NOR. ;
-
-: ORI sd-form 24 insn ;  : ORIS sd-form 25 insn ;
-
-: (OR) 444 x-form 31 insn ;
-: OR 0 (OR) ;  : OR. 1 (OR) ;
-
-: (ORC) 412 x-form 31 insn ;
-: ORC 0 (ORC) ;  : ORC. 1 (ORC) ;
-
-: MR dup OR ;  : MR. dup OR. ;
-
-: (MULHW) 75 xo-form 31 insn ;
-: MULHW 0 0 (MULHW) ;  : MULHW. 0 1 (MULHW) ;
-
-: MULLI d-form 7 insn ;
-
-: (MULHWU) 11 xo-form 31 insn ;
-: MULHWU 0 0 (MULHWU) ;  : MULHWU. 0 1 (MULHWU) ;
-
-: (MULLW) 235 xo-form 31 insn ;
-: MULLW 0 0 (MULLW) ;  : MULLW. 0 1 (MULLW) ;
-: MULLWO 1 0 (MULLW) ; : MULLWO. 1 1 (MULLW) ;
-
-: (SLW) 24 x-form 31 insn ;
-: SLW 0 (SLW) ;  : SLW. 1 (SLW) ;
-
-: (SRAW) 792 x-form 31 insn ;
-: SRAW 0 (SRAW) ;  : SRAW. 1 (SRAW) ;
-
-: (SRW) 536 x-form 31 insn ;
-: SRW 0 (SRW) ;  : SRW. 1 (SRW) ;
-
-: SRAWI 0 824 x-form 31 insn ;
-
-: (SUBF) 40 xo-form 31 insn ;
-: SUBF 0 0 (SUBF) ;  : SUBF. 0 1 (SUBF) ;
-: SUBFO 1 0 (SUBF) ; : SUBFO. 1 1 (SUBF) ;
-
-: (SUBFC) 8 xo-form 31 insn ;
-: SUBFC 0 0 (SUBFC) ;  : SUBFC. 0 1 (SUBFC) ;
-: SUBFCO 1 0 (SUBFC) ; : SUBFCO. 1 1 (SUBFC) ;
-
-: (SUBFE) 136 xo-form 31 insn ;
-: SUBFE 0 0 (SUBFE) ;  : SUBFE. 0 1 (SUBFE) ;
-: SUBFEO 1 0 (SUBFE) ; : SUBFEO. 1 1 (SUBFE) ;
-
-: (EXTSB) 0 swap 954 x-form 31 insn ;
-: EXTSB 0 (EXTSB) ;
-: EXTSB. 1 (EXTSB) ;
-
-: XORI sd-form 26 insn ;  : XORIS sd-form 27 insn ;
-
-: (XOR) 316 x-form 31 insn ;
-: XOR 0 (XOR) ;  : XOR. 1 (XOR) ;
-
-: (NEG) 0 -rot 104 xo-form 31 insn ;
-: NEG 0 0 (NEG) ;  : NEG. 0 1 (NEG) ;
-: NEGO 1 0 (NEG) ; : NEGO. 1 1 (NEG) ;
-
-: CMPI d-form 11 insn ;
-: CMPLI d-form 10 insn ;
-
-: CMP 0 0 x-form 31 insn ;
-: CMPL 0 32 x-form 31 insn ;
-
-: (RLWINM) a-form 21 insn ;
-: RLWINM 0 (RLWINM) ;  : RLWINM. 1 (RLWINM) ;
-
-: (SLWI) 0 31 pick - ;
-: SLWI (SLWI) RLWINM ;  : SLWI. (SLWI) RLWINM. ;
-: (SRWI) 32 over - swap 31 ;
-: SRWI (SRWI) RLWINM ;  : SRWI. (SRWI) RLWINM. ;
-
-: LBZ d-form 34 insn ;  : LBZU d-form 35 insn ;
-: LHA d-form 42 insn ;  : LHAU d-form 43 insn ;
-: LHZ d-form 40 insn ;  : LHZU d-form 41 insn ;
-: LWZ d-form 32 insn ;  : LWZU d-form 33 insn ;
-
-: LBZX 0  87 x-form 31 insn ; : LBZUX 0 119 x-form 31 insn ;
-: LHAX 0 343 x-form 31 insn ; : LHAUX 0 375 x-form 31 insn ;
-: LHZX 0 279 x-form 31 insn ; : LHZUX 0 311 x-form 31 insn ;
-: LWZX 0  23 x-form 31 insn ; : LWZUX 0  55 x-form 31 insn ;
-
-: STB d-form 38 insn ;  : STBU d-form 39 insn ;
-: STH d-form 44 insn ;  : STHU d-form 45 insn ;
-: STW d-form 36 insn ;  : STWU d-form 37 insn ;
-
-: STBX 0 215 x-form 31 insn ; : STBUX 247 x-form 31 insn ;
-: STHX 0 407 x-form 31 insn ; : STHUX 439 x-form 31 insn ;
-: STWX 0 151 x-form 31 insn ; : STWUX 183 x-form 31 insn ;
-
-GENERIC# (B) 2 ( dest aa lk -- )
-M: integer (B) i-form 18 insn ;
-M: word (B) 0 -rot (B) rc-relative-ppc-3 rel-word ;
-M: label (B) 0 -rot (B) rc-relative-ppc-3 label-fixup ;
-
-: B 0 0 (B) ; : BL 0 1 (B) ;
-
-GENERIC: BC ( a b c -- )
-M: integer BC 0 0 b-form 16 insn ;
-M: word BC >r 0 BC r> rc-relative-ppc-2 rel-word ;
-M: label BC >r 0 BC r> rc-relative-ppc-2 label-fixup ;
-
-: BLT 12 0 rot BC ;  : BGE 4 0 rot BC ;
-: BGT 12 1 rot BC ;  : BLE 4 1 rot BC ;
-: BEQ 12 2 rot BC ;  : BNE 4 2 rot BC ;
-: BO  12 3 rot BC ;  : BNO 4 3 rot BC ;
-
-: BCLR 0 8 0 0 b-form 19 insn ;
-: BLR 20 BCLR ;
-: BCLRL 0 8 0 1 b-form 19 insn ;
-: BLRL 20 BCLRL ;
-: BCCTR 0 264 0 0 b-form 19 insn ;
-: BCTR 20 BCCTR ;
-
-: MFSPR 5 shift 339 xfx-form 31 insn ;
-: MFXER 1 MFSPR ;  : MFLR 8 MFSPR ;  : MFCTR 9 MFSPR ;
-
-: MTSPR 5 shift 467 xfx-form 31 insn ;
-: MTXER 1 MTSPR ;  : MTLR 8 MTSPR ;  : MTCTR 9 MTSPR ;
-
-: LOAD32 >r w>h/h r> tuck LIS dup rot ORI ;
-
-: LOAD ( n r -- )
-    #! PowerPC cannot load a 32 bit literal in one instruction.
-   >r dup -32768 32767 between? [ r> LI ] [ r> LOAD32 ] if ;
-
-! Floating point
-: LFS d-form 48 insn ;  : LFSU d-form 49 insn ;
-: LFD d-form 50 insn ;  : LFDU d-form 51 insn ;
-: STFS d-form 52 insn ; : STFSU d-form 53 insn ;
-: STFD d-form 54 insn ; : STFDU d-form 55 insn ;
-
-: (FMR) >r 0 -rot 72 r> x-form 63 insn ;
-: FMR 0 (FMR) ;  : FMR. 1 (FMR) ;
-
-: (FCTIWZ) >r 0 -rot r> 15 x-form 63 insn ;
-: FCTIWZ 0 (FCTIWZ) ;  : FCTIWZ. 1 (FCTIWZ) ;
-
-: (FADD) >r 0 21 r> a-form 63 insn ;
-: FADD 0 (FADD) ;  : FADD. 1 (FADD) ;
-
-: (FSUB) >r 0 20 r> a-form 63 insn ;
-: FSUB 0 (FSUB) ;  : FSUB. 1 (FSUB) ;
-
-: (FMUL) >r 0 swap 25 r> a-form 63 insn ;
-: FMUL 0 (FMUL) ;  : FMUL. 1 (FMUL) ;
-
-: (FDIV) >r 0 18 r> a-form 63 insn ;
-: FDIV 0 (FDIV) ;  : FDIV. 1 (FDIV) ;
-
-: (FSQRT) >r 0 swap 0 22 r> a-form 63 insn ;
-: FSQRT 0 (FSQRT) ;  : FSQRT. 1 (FSQRT) ;
-
-: FCMPU 0 0 x-form 63 insn ;
-: FCMPO 0 32 x-form 63 insn ;
diff --git a/core/cpu/ppc/bootstrap.factor b/core/cpu/ppc/bootstrap.factor
deleted file mode 100755
index 18c7e8b92e..0000000000
--- a/core/cpu/ppc/bootstrap.factor
+++ /dev/null
@@ -1,109 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: bootstrap.image.private kernel namespaces system
-cpu.ppc.assembler generator.fixup compiler.units
-compiler.constants math layouts words vocabs ;
-IN: bootstrap.ppc
-
-4 \ cell set
-big-endian on
-
-4 jit-code-format set
-
-: ds-reg 14 ;
-: quot-reg 3 ;
-: temp-reg 6 ;
-: aux-reg 11 ;
-
-: factor-area-size 4 bootstrap-cells ;
-
-: stack-frame
-    factor-area-size c-area-size + 4 bootstrap-cells align ;
-
-: next-save stack-frame bootstrap-cell - ;
-: xt-save stack-frame 2 bootstrap-cells - ;
-
-[
-    ! Load word
-    0 temp-reg LOAD32
-    temp-reg dup 0 LWZ
-    ! Bump profiling counter
-    aux-reg temp-reg profile-count-offset LWZ
-    aux-reg dup 1 tag-fixnum ADDI
-    aux-reg temp-reg profile-count-offset STW
-    ! Load word->code
-    aux-reg temp-reg word-code-offset LWZ
-    ! Compute word XT
-    aux-reg dup compiled-header-size ADDI
-    ! Jump to XT
-    aux-reg MTCTR
-    BCTR
-] rc-absolute-ppc-2/2 rt-literal 1 jit-profiling jit-define
-
-[
-    0 temp-reg LOAD32                          ! load XT
-    0 MFLR                                     ! load return address
-    1 1 stack-frame neg ADDI                   ! create stack frame
-    temp-reg 1 xt-save STW                     ! save XT
-    stack-frame temp-reg LI                    ! load frame size
-    temp-reg 1 next-save STW                   ! save frame size
-    0 1 lr-save stack-frame + STW              ! save return address
-] rc-absolute-ppc-2/2 rt-label 1 jit-prolog jit-define
-
-[
-    0 temp-reg LOAD32                          ! load literal
-    temp-reg dup 0 LWZ                         ! indirection
-    temp-reg ds-reg 4 STWU                     ! push literal
-] rc-absolute-ppc-2/2 rt-literal 1 jit-push-literal jit-define
-
-[
-    0 temp-reg LOAD32                          ! load primitive address
-    4 1 MR                                     ! pass stack pointer to primitive
-    temp-reg MTCTR                             ! jump to primitive
-    BCTR
-] rc-absolute-ppc-2/2 rt-primitive 1 jit-primitive jit-define
-
-[
-    0 BL
-] rc-relative-ppc-3 rt-xt 0 jit-word-call jit-define
-
-[
-    0 B
-] rc-relative-ppc-3 rt-xt 0 jit-word-jump jit-define
-
-: jit-call-quot ( -- )
-    temp-reg quot-reg quot-xt@ LWZ             ! load quotation-xt
-    temp-reg MTCTR                             ! jump to quotation-xt
-    BCTR ;
-
-[
-    0 quot-reg LOAD32                          ! point quot-reg at false branch
-    temp-reg ds-reg 0 LWZ                      ! load boolean
-    0 temp-reg \ f tag-number CMPI             ! compare it with f
-    2 BNE                                      ! skip next insn if its not f
-    quot-reg dup 4 ADDI                        ! point quot-reg at true branch
-    quot-reg dup 0 LWZ                         ! load the branch
-    ds-reg dup 4 SUBI                          ! pop boolean
-    jit-call-quot
-] rc-absolute-ppc-2/2 rt-literal 1 jit-if-jump jit-define
-
-[
-    0 quot-reg LOAD32                          ! load dispatch array
-    quot-reg dup 0 LWZ                         ! indirection
-    temp-reg ds-reg 0 LWZ                      ! load index
-    temp-reg dup 1 SRAWI                       ! turn it into an array offset
-    quot-reg dup temp-reg ADD                  ! compute quotation location
-    quot-reg dup array-start LWZ               ! load quotation
-    ds-reg dup 4 SUBI                          ! pop index
-    jit-call-quot
-] rc-absolute-ppc-2/2 rt-literal 1 jit-dispatch jit-define
-
-[
-    0 1 lr-save stack-frame + LWZ              ! load return address
-    1 1 stack-frame ADDI                       ! pop stack frame
-    0 MTLR                                     ! get ready to return
-] f f f jit-epilog jit-define
-
-[ BLR ] f f f jit-return jit-define
-
-[ "bootstrap.ppc" forget-vocab ] with-compilation-unit
diff --git a/core/cpu/ppc/ppc.factor b/core/cpu/ppc/ppc.factor
deleted file mode 100755
index eede86085b..0000000000
--- a/core/cpu/ppc/ppc.factor
+++ /dev/null
@@ -1,14 +0,0 @@
-USING: cpu.ppc.architecture cpu.ppc.intrinsics cpu.architecture
-namespaces alien.c-types kernel system combinators ;
-
-{
-    { [ os macosx? ] [
-        4 "longlong" c-type set-c-type-align
-        4 "ulonglong" c-type set-c-type-align
-        4 "double" c-type set-c-type-align
-    ] }
-    { [ os linux? ] [
-        t "longlong" c-type set-c-type-stack-align?
-        t "ulonglong" c-type set-c-type-stack-align?
-    ] }
-} cond
diff --git a/core/cpu/x86/32/bootstrap.factor b/core/cpu/x86/32/bootstrap.factor
deleted file mode 100755
index 16083a8628..0000000000
--- a/core/cpu/x86/32/bootstrap.factor
+++ /dev/null
@@ -1,18 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: bootstrap.image.private kernel namespaces system
-cpu.x86.assembler layouts vocabs parser ;
-IN: bootstrap.x86
-
-4 \ cell set
-
-: arg0 EAX ;
-: arg1 EDX ;
-: temp-reg EBX ;
-: stack-reg ESP ;
-: ds-reg ESI ;
-: fixnum>slot@ arg0 1 SAR ;
-: rex-length 0 ;
-
-<< "resource:core/cpu/x86/bootstrap.factor" parse-file parsed >>
-call
diff --git a/core/cpu/x86/32/tags.txt b/core/cpu/x86/32/tags.txt
deleted file mode 100644
index 86a7c8e637..0000000000
--- a/core/cpu/x86/32/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-compiler
diff --git a/core/cpu/x86/64/bootstrap.factor b/core/cpu/x86/64/bootstrap.factor
deleted file mode 100755
index 93bf7cca17..0000000000
--- a/core/cpu/x86/64/bootstrap.factor
+++ /dev/null
@@ -1,18 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: bootstrap.image.private kernel namespaces system
-cpu.x86.assembler layouts vocabs parser ;
-IN: bootstrap.x86
-
-8 \ cell set
-
-: arg0 RDI ;
-: arg1 RSI ;
-: temp-reg RBX ;
-: stack-reg RSP ;
-: ds-reg R14 ;
-: fixnum>slot@ ;
-: rex-length 1 ;
-
-<< "resource:core/cpu/x86/bootstrap.factor" parse-file parsed >>
-call
diff --git a/core/cpu/x86/64/tags.txt b/core/cpu/x86/64/tags.txt
deleted file mode 100644
index 86a7c8e637..0000000000
--- a/core/cpu/x86/64/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-compiler
diff --git a/core/cpu/x86/bootstrap.factor b/core/cpu/x86/bootstrap.factor
deleted file mode 100755
index ea4cadd51b..0000000000
--- a/core/cpu/x86/bootstrap.factor
+++ /dev/null
@@ -1,83 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: bootstrap.image.private kernel namespaces system
-cpu.x86.assembler layouts compiler.units math generator.fixup
-compiler.constants vocabs ;
-IN: bootstrap.x86
-
-big-endian off
-
-1 jit-code-format set
-
-: stack-frame-size 4 bootstrap-cells ;
-
-[
-    ! Load word
-    temp-reg 0 MOV
-    temp-reg dup [] MOV
-    ! Bump profiling counter
-    temp-reg profile-count-offset [+] 1 tag-fixnum ADD
-    ! Load word->code
-    temp-reg temp-reg word-code-offset [+] MOV
-    ! Compute word XT
-    temp-reg compiled-header-size ADD
-    ! Jump to XT
-    temp-reg JMP
-] rc-absolute-cell rt-literal 1 rex-length + jit-profiling jit-define
-
-[
-    temp-reg 0 MOV                             ! load XT
-    stack-frame-size PUSH                      ! save stack frame size
-    temp-reg PUSH                              ! push XT
-    arg1 PUSH                                  ! alignment
-] rc-absolute-cell rt-label 1 rex-length + jit-prolog jit-define
-
-[
-    arg0 0 MOV                                 ! load literal
-    arg0 dup [] MOV
-    ds-reg bootstrap-cell ADD                  ! increment datastack pointer
-    ds-reg [] arg0 MOV                         ! store literal on datastack
-] rc-absolute-cell rt-literal 1 rex-length + jit-push-literal jit-define
-
-[
-    arg0 0 MOV                                 ! load XT
-    arg1 stack-reg MOV                         ! pass callstack pointer as arg 2
-    arg0 JMP                                   ! go
-] rc-absolute-cell rt-primitive 1 rex-length + jit-primitive jit-define
-
-[
-    (JMP) drop
-] rc-relative rt-xt 1 jit-word-jump jit-define
-
-[
-    (CALL) drop
-] rc-relative rt-xt 1 jit-word-call jit-define
-
-[
-    arg1 0 MOV                                 ! load addr of true quotation
-    arg0 ds-reg [] MOV                         ! load boolean
-    ds-reg bootstrap-cell SUB                  ! pop boolean
-    arg0 \ f tag-number CMP                    ! compare it with f
-    arg0 arg1 [] CMOVNE                        ! load true branch if not equal
-    arg0 arg1 bootstrap-cell [+] CMOVE         ! load false branch if equal
-    arg0 quot-xt@ [+] JMP                      ! jump to quotation-xt
-] rc-absolute-cell rt-literal 1 rex-length + jit-if-jump jit-define
-
-[
-    arg1 0 MOV                                 ! load dispatch table
-    arg1 dup [] MOV
-    arg0 ds-reg [] MOV                         ! load index
-    fixnum>slot@                               ! turn it into an array offset
-    ds-reg bootstrap-cell SUB                  ! pop index
-    arg0 arg1 ADD                              ! compute quotation location
-    arg0 arg0 array-start [+] MOV              ! load quotation
-    arg0 quot-xt@ [+] JMP                      ! execute branch
-] rc-absolute-cell rt-literal 1 rex-length + jit-dispatch jit-define
-
-[
-    stack-reg stack-frame-size bootstrap-cell - ADD ! unwind stack frame
-] f f f jit-epilog jit-define
-
-[ 0 RET ] f f f jit-return jit-define
-
-[ "bootstrap.x86" forget-vocab ] with-compilation-unit
diff --git a/core/definitions/definitions.factor b/core/definitions/definitions.factor
index 459512b83a..2b8646fda4 100755
--- a/core/definitions/definitions.factor
+++ b/core/definitions/definitions.factor
@@ -1,16 +1,34 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 IN: definitions
-USING: kernel sequences namespaces assocs graphs ;
+USING: kernel sequences namespaces assocs graphs math math.order ;
 
 ERROR: no-compilation-unit definition ;
 
+SYMBOL: inlined-dependency
+SYMBOL: flushed-dependency
+SYMBOL: called-dependency
+
 SYMBOL: changed-definitions
 
 : changed-definition ( defspec -- )
-    dup changed-definitions get
-    [ no-compilation-unit ] unless*
-    set-at ;
+    inlined-dependency swap changed-definitions get
+    [ set-at ] [ no-compilation-unit ] if* ;
+
+SYMBOL: changed-generics
+
+: changed-generic ( class generic -- )
+    changed-generics get
+    [ set-at ] [ no-compilation-unit ] if* ;
+
+SYMBOL: new-classes
+
+: new-class ( word -- )
+    dup new-classes get
+    [ set-at ] [ no-compilation-unit ] if* ;
+
+: new-class? ( word -- ? )
+    new-classes get key? ;
 
 GENERIC: where ( defspec -- loc )
 
@@ -47,7 +65,17 @@ M: object uses drop f ;
 
 : xref ( defspec -- ) dup uses crossref get add-vertex ;
 
-: usage ( defspec -- seq ) \ f or crossref get at keys ;
+: usage ( defspec -- seq ) crossref get at keys ;
+
+GENERIC: irrelevant? ( defspec -- ? )
+
+M: object irrelevant? drop f ;
+
+GENERIC: smart-usage ( defspec -- seq )
+
+M: f smart-usage drop \ f smart-usage ;
+
+M: object smart-usage usage [ irrelevant? not ] filter ;
 
 : unxref ( defspec -- )
     dup uses crossref get remove-vertex ;
diff --git a/core/destructors/destructors-tests.factor b/core/destructors/destructors-tests.factor
index f442e27a04..e09a88aee4 100755
--- a/core/destructors/destructors-tests.factor
+++ b/core/destructors/destructors-tests.factor
@@ -28,7 +28,7 @@ TUPLE: dummy-destructor obj ;
 C: <dummy-destructor> dummy-destructor
 
 M: dummy-destructor dispose ( obj -- )
-    dummy-destructor-obj t swap set-dummy-obj-destroyed? ;
+    obj>> t >>destroyed? drop ;
 
 : destroy-always
     <dummy-destructor> &dispose drop ;
@@ -39,13 +39,13 @@ M: dummy-destructor dispose ( obj -- )
 [ t ] [
     [
         <dummy-obj> dup destroy-always
-    ] with-destructors dummy-obj-destroyed? 
+    ] with-destructors destroyed?>>
 ] unit-test
 
 [ f ] [
     [
         <dummy-obj> dup destroy-later
-    ] with-destructors dummy-obj-destroyed? 
+    ] with-destructors destroyed?>>
 ] unit-test
 
 [ t ] [
@@ -54,7 +54,7 @@ M: dummy-destructor dispose ( obj -- )
             dup destroy-always
             "foo" throw
         ] with-destructors
-    ] ignore-errors dummy-obj-destroyed? 
+    ] ignore-errors destroyed?>>
 ] unit-test
 
 [ t ] [
@@ -63,6 +63,6 @@ M: dummy-destructor dispose ( obj -- )
             dup destroy-later
             "foo" throw
         ] with-destructors
-    ] ignore-errors dummy-obj-destroyed? 
+    ] ignore-errors destroyed?>>
 ] unit-test
 
diff --git a/core/destructors/destructors.factor b/core/destructors/destructors.factor
index bed1c16bcf..154e1c30ac 100755
--- a/core/destructors/destructors.factor
+++ b/core/destructors/destructors.factor
@@ -21,7 +21,7 @@ M: object dispose
 : dispose-each ( seq -- )
     [
         [ [ dispose ] curry [ , ] recover ] each
-    ] { } make dup empty? [ drop ] [ peek rethrow ] if ;
+    ] { } make [ peek rethrow ] unless-empty ;
 
 : with-disposal ( object quot -- )
     over [ dispose ] curry [ ] cleanup ; inline
diff --git a/core/dlists/dlists-docs.factor b/core/dlists/dlists-docs.factor
deleted file mode 100755
index 8616d1f253..0000000000
--- a/core/dlists/dlists-docs.factor
+++ /dev/null
@@ -1,126 +0,0 @@
-USING: help.markup help.syntax kernel quotations dlists.private ;
-IN: dlists
-
-ARTICLE: "dlists" "Doubly-linked lists"
-"A doubly-linked list, or dlist, is a list of nodes. Each node has a link to the previous and next nodes, and a slot to store an object."
-$nl
-"While nodes can be modified directly, the fundamental protocol support by doubly-linked lists is that of a double-ended queue with a few additional operations. Elements can be added or removed at both ends of the dlist in constant time."
-$nl
-"When using a dlist as a simple queue, the convention is to queue elements with " { $link push-front } " and dequeue them with " { $link pop-back } "."
-$nl
-"Dlists form a class:"
-{ $subsection dlist }
-{ $subsection dlist? }
-"Constructing a dlist:"
-{ $subsection <dlist> }
-"Working with the front of the list:"
-{ $subsection push-front }
-{ $subsection push-front* }
-{ $subsection peek-front }
-{ $subsection pop-front }
-{ $subsection pop-front* }
-"Working with the back of the list:"
-{ $subsection push-back }
-{ $subsection push-back* }
-{ $subsection peek-back }
-{ $subsection pop-back }
-{ $subsection pop-back* }
-"Finding out the length:"
-{ $subsection dlist-empty? }
-{ $subsection dlist-length }
-"Iterating over elements:"
-{ $subsection dlist-each }
-{ $subsection dlist-find }
-{ $subsection dlist-contains? }
-"Deleting a node:"
-{ $subsection delete-node }
-{ $subsection dlist-delete }
-"Deleting a node matching a predicate:"
-{ $subsection delete-node-if* }
-{ $subsection delete-node-if }
-"Consuming all nodes:"
-{ $subsection dlist-slurp } ;
-
-ABOUT: "dlists"
-
-HELP: dlist-empty?
-{ $values { "dlist" { $link dlist } } { "?" "a boolean" } }
-{ $description "Returns true if a " { $link dlist } " is empty." }
-{ $notes "This operation is O(1)." } ;
-
-HELP: push-front
-{ $values { "obj" "an object" } { "dlist" dlist } }
-{ $description "Push the object onto the front of the " { $link dlist } "." } 
-{ $notes "This operation is O(1)." } ;
-
-HELP: push-front*
-{ $values { "obj" "an object" } { "dlist" dlist } { "dlist-node" dlist-node } }
-{ $description "Push the object onto the front of the " { $link dlist } " and return the newly created " { $snippet "dlist-node" } "." } 
-{ $notes "This operation is O(1)." } ;
-
-HELP: push-back
-{ $values { "obj" "an object" } { "dlist" dlist } }
-{ $description "Push the object onto the back of the " { $link dlist } "." } 
-{ $notes "This operation is O(1)." } ;
-
-HELP: push-back*
-{ $values { "obj" "an object" } { "dlist" dlist } { "dlist-node" dlist-node } }
-{ $description "Push the object onto the back of the " { $link dlist } " and return the newly created " { $snippet "dlist-node" } "." } 
-{ $notes "This operation is O(1)." } ;
-
-HELP: peek-front
-{ $values { "dlist" dlist } { "obj" "an object" } }
-{ $description "Returns the object at the front of the " { $link dlist } "." } ;
-
-HELP: pop-front
-{ $values { "dlist" dlist } { "obj" "an object" } }
-{ $description "Pop the object off the front of the " { $link dlist } " and return the object." }
-{ $notes "This operation is O(1)." } ;
-
-HELP: pop-front*
-{ $values { "dlist" dlist } }
-{ $description "Pop the object off the front of the " { $link dlist } "." }
-{ $notes "This operation is O(1)." } ;
-
-HELP: peek-back
-{ $values { "dlist" dlist } { "obj" "an object" } }
-{ $description "Returns the object at the back of the " { $link dlist } "." } ;
-
-HELP: pop-back
-{ $values { "dlist" dlist } { "obj" "an object" } }
-{ $description "Pop the object off the back of the " { $link dlist } " and return the object." }
-{ $notes "This operation is O(1)." } ;
-
-HELP: pop-back*
-{ $values { "dlist" dlist } }
-{ $description "Pop the object off the back of the " { $link dlist } "." }
-{ $notes "This operation is O(1)." } ;
-
-{ push-front push-front* push-back push-back* peek-front pop-front pop-front* peek-back pop-back pop-back* } related-words
-
-HELP: dlist-find
-{ $values { "dlist" { $link dlist } } { "quot" quotation } { "obj/f" "an object or " { $link f } } { "?" "a boolean" } }
-{ $description "Applies the quotation to each element of the " { $link dlist } " in turn, until it outputs a true value or the end of the " { $link dlist } " is reached.  Outputs either the object it found or " { $link f } ", and a boolean which is true if an object is found." }
-{ $notes "Returns a boolean to allow dlists to store " { $link f } "."
-    $nl
-    "This operation is O(n)."
-} ;
-
-HELP: dlist-contains?
-{ $values { "dlist" { $link dlist } } { "quot" quotation } { "?" "a boolean" } }
-{ $description "Just like " { $link dlist-find } " except it doesn't return the object." }
-{ $notes "This operation is O(n)." } ;
-
-HELP: delete-node-if*
-{ $values { "dlist" { $link dlist } } { "quot" quotation } { "obj/f" "an object or " { $link f } } { "?" "a boolean" } }
-{ $description "Calls " { $link dlist-find } " on the " { $link dlist } " and deletes the node returned, if any.  Returns the value of the deleted node and a boolean to allow the deleted value to distinguished from " { $link f } ", for nothing deleted." }
-{ $notes "This operation is O(n)." } ;
-
-HELP: delete-node-if
-{ $values { "dlist" { $link dlist } } { "quot" quotation } { "obj/f" "an object or " { $link f } } }
-{ $description "Like " { $link delete-node-if* } " but cannot distinguish from deleting a node whose value is " { $link f } " or not deleting an element." }
-{ $notes "This operation is O(n)." } ;
-
-HELP: dlist-each
-{ $values { "dlist" { $link dlist } } { "quot" quotation } }
-{ $description "Iterate a " { $link dlist } ", calling quot on each element." } ;
diff --git a/core/effects/effects-docs.factor b/core/effects/effects-docs.factor
index 9e37ba4c85..f9c18e410d 100644
--- a/core/effects/effects-docs.factor
+++ b/core/effects/effects-docs.factor
@@ -1,14 +1,19 @@
-USING: help.markup help.syntax math strings words ;
+USING: help.markup help.syntax math strings words kernel ;
 IN: effects
 
 ARTICLE: "effect-declaration" "Stack effect declaration"
-"It is good practice to declare the stack effects of words using the following syntax:"
-{ $code ": sq ( x -- y ) dup * ;" }
-"A stack effect declaration is written in parentheses and lists word inputs and outputs, separated by " { $snippet "--" } ". Stack effect declarations are read in using a parsing word:"
+"Stack effects of words must be declared, with the exception of words which only push literals on the stack."
+$nl
+"A stack effect declaration is written in parentheses and lists word inputs and outputs, separated by " { $snippet "--" } ". Here is an example:"
+{ $synopsis sq }
+"Parameters which are quotations can be declared by suffixing the parameter name with " { $snippet ":" } " and then writing a nested stack effect declaration:"
+{ $synopsis while }
+"Stack effect declarations are read in using a parsing word:"
 { $subsection POSTPONE: ( }
 "Stack elements in a stack effect are ordered so that the top of the stack is on the right side. Each value can be named by a data type or description. The following are some examples of value names:"
 { $table
     { { { $snippet "?" } } "a boolean" }
+    { { { $snippet "<=>" } } { "an ordering sepcifier; see " { $link "order-specifiers" } } }
     { { { $snippet "elt" } } "an object which is an element of a sequence" }
     { { { $snippet "m" } ", " { $snippet "n" } } "an integer" }
     { { { $snippet "obj" } } "an object" }
@@ -21,25 +26,26 @@ ARTICLE: "effect-declaration" "Stack effect declaration"
     { { $snippet "dim" } "a screen dimension specified as a two-element array holding width and height values" }
     { { $snippet "*" } "when this symbol appears by itself in the list of outputs, it means the word unconditionally throws an error" }
 }
-"The stack effect inferencer verifies stack effect comments to ensure the correct number of inputs and outputs is listed. Value names are ignored; only their number matters. An error is thrown if a word's declared stack effect does not match its inferred stack effect."
-$nl
-"Recursive words must declare a stack effect in order to compile. This includes all generic words, due to how delegation is implemented." ;
+"The stack effect inferencer verifies stack effect comments to ensure the correct number of inputs and outputs is listed. Value names are ignored; only their number matters. An error is thrown if a word's declared stack effect does not match its inferred stack effect. See " { $link "inference" } "." ;
 
 ARTICLE: "effects" "Stack effects"
 "A " { $emphasis "stack effect declaration" } ", for example " { $snippet "( x y -- z )" } " denotes that an operation takes two inputs, with " { $snippet "y" } " at the top of the stack, and returns one output."
 $nl
+"Stack effects of words can be declared."
+{ $subsection "effect-declaration" }
 "Stack effects are first-class, and words for working with them are found in the " { $vocab-link "effects" } " vocabulary."
 { $subsection effect }
 { $subsection effect? }
-"Stack effects of words can be declared."
-{ $subsection "effect-declaration" }
+"There is a literal syntax for stack objects. It is most often used with " { $link define-declared } "."
+{ $subsection POSTPONE: (( }
 "Getting a word's declared stack effect:"
 { $subsection stack-effect }
 "Converting a stack effect to a string form:"
 { $subsection effect>string }
 "Comparing effects:"
 { $subsection effect-height }
-{ $subsection effect<= } ;
+{ $subsection effect<= }
+{ $see-also "inference" } ;
 
 ABOUT: "effects"
 
@@ -55,7 +61,7 @@ HELP: effect<=
 { $description "Tests if " { $snippet "eff1" } " is substitutable for " { $snippet "eff2" } ". What this means is that both stack effects change the stack height by the same amount, the first takes a smaller or equal number of inputs as the second, and either both or neither one terminate execution by throwing an error." } ;
 
 HELP: effect>string
-{ $values { "effect" effect } { "string" string } }
+{ $values { "obj" object } { "str" string } }
 { $description "Turns a stack effect object into a string mnemonic." }
 { $examples
     { $example "USING: effects io ;" "1 2 <effect> effect>string print" "( object -- object object )" }
diff --git a/core/effects/effects-tests.factor b/core/effects/effects-tests.factor
index 234f567f25..c592ef6c92 100644
--- a/core/effects/effects-tests.factor
+++ b/core/effects/effects-tests.factor
@@ -1,9 +1,17 @@
 IN: effects.tests
-USING: effects tools.test ;
+USING: effects tools.test prettyprint accessors sequences ;
 
 [ t ] [ 1 1 <effect> 2 2 <effect> effect<= ] unit-test
 [ f ] [ 1 0 <effect> 2 2 <effect> effect<= ] unit-test
 [ t ] [ 2 2 <effect> 2 2 <effect> effect<= ] unit-test
 [ f ] [ 3 3 <effect> 2 2 <effect> effect<= ] unit-test
 [ f ] [ 2 3 <effect> 2 2 <effect> effect<= ] unit-test
-[ t ] [ 2 3 <effect> f effect<= ] unit-test
+[ 2 ] [ (( a b -- c )) in>> length ] unit-test
+[ 1 ] [ (( a b -- c )) out>> length ] unit-test
+
+
+[ "(( a b -- c d ))" ] [ { "a" "b" } { "c" "d" } <effect> unparse ] unit-test
+[ "(( -- c d ))" ] [ { } { "c" "d" } <effect> unparse ] unit-test
+[ "(( a b -- ))" ] [ { "a" "b" } { } <effect> unparse ] unit-test
+[ "(( -- ))" ] [ { } { } <effect> unparse ] unit-test
+[ "(( a b -- c ))" ] [ (( a b -- c )) unparse ] unit-test
diff --git a/core/effects/effects.factor b/core/effects/effects.factor
index 80a4f679c0..8a000b0615 100755
--- a/core/effects/effects.factor
+++ b/core/effects/effects.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math namespaces sequences strings words assocs
-combinators ;
+USING: kernel math math.parser namespaces sequences strings
+words assocs combinators accessors arrays ;
 IN: effects
 
 TUPLE: effect in out terminated? ;
@@ -11,58 +11,59 @@ TUPLE: effect in out terminated? ;
     effect boa ;
 
 : effect-height ( effect -- n )
-    dup effect-out length swap effect-in length - ;
+    [ out>> length ] [ in>> length ] bi - ;
 
 : effect<= ( eff1 eff2 -- ? )
     {
-        { [ dup not ] [ t ] }
-        { [ over effect-terminated? ] [ t ] }
-        { [ dup effect-terminated? ] [ f ] }
-        { [ 2dup [ effect-in length ] bi@ > ] [ f ] }
+        { [ over terminated?>> ] [ t ] }
+        { [ dup terminated?>> ] [ f ] }
+        { [ 2dup [ in>> length ] bi@ > ] [ f ] }
         { [ 2dup [ effect-height ] bi@ = not ] [ f ] }
         [ t ]
     } cond 2nip ;
 
-GENERIC: (stack-picture) ( obj -- str )
-M: string (stack-picture) ;
-M: word (stack-picture) word-name ;
-M: integer (stack-picture) drop "object" ;
+GENERIC: effect>string ( obj -- str )
+M: string effect>string ;
+M: word effect>string name>> ;
+M: integer effect>string number>string ;
+M: pair effect>string first2 [ effect>string ] bi@ ": " swap 3append ;
 
 : stack-picture ( seq -- string )
-    [ [ (stack-picture) % CHAR: \s , ] each ] "" make ;
+    dup integer? [ "object" <repetition> ] when
+    [ [ effect>string % CHAR: \s , ] each ] "" make ;
 
-: effect>string ( effect -- string )
+M: effect effect>string ( effect -- string )
     [
         "( " %
-        dup effect-in stack-picture %
-        "-- " %
-        dup effect-out stack-picture %
-        effect-terminated? [ "* " % ] when
+        [ in>> stack-picture % "-- " % ]
+        [ out>> stack-picture % ]
+        [ terminated?>> [ "* " % ] when ]
+        tri
         ")" %
     ] "" make ;
 
 GENERIC: stack-effect ( word -- effect/f )
 
-M: symbol stack-effect drop 0 1 <effect> ;
+M: symbol stack-effect drop (( -- symbol )) ;
 
 M: word stack-effect
     { "declared-effect" "inferred-effect" }
-    swap word-props [ at ] curry map [ ] find nip ;
+    swap props>> [ at ] curry map [ ] find nip ;
 
 M: effect clone
-    [ effect-in clone ] keep effect-out clone <effect> ;
+    [ in>> clone ] [ out>> clone ] bi <effect> ;
+
+: stack-height ( word -- n )
+    stack-effect effect-height ;
 
 : split-shuffle ( stack shuffle -- stack1 stack2 )
-    effect-in length cut* ;
+    in>> length cut* ;
 
 : load-shuffle ( stack shuffle -- )
-    effect-in [ set ] 2each ;
+    in>> [ set ] 2each ;
 
 : shuffled-values ( shuffle -- values )
-    effect-out [ get ] map ;
-
-: shuffle* ( stack shuffle -- newstack )
-    [ [ load-shuffle ] keep shuffled-values ] with-scope ;
+    out>> [ get ] map ;
 
 : shuffle ( stack shuffle -- newstack )
-    [ split-shuffle ] keep shuffle* append ;
+    [ [ load-shuffle ] keep shuffled-values ] with-scope ;
diff --git a/core/effects/parser/parser-docs.factor b/core/effects/parser/parser-docs.factor
new file mode 100644
index 0000000000..6cb39d208d
--- /dev/null
+++ b/core/effects/parser/parser-docs.factor
@@ -0,0 +1,9 @@
+IN: effects.parser
+USING: strings effects help.markup help.syntax ;
+
+HELP: parse-effect
+{ $values { "end" string } { "effect" "an instance of " { $link effect } } }
+{ $description "Parses a stack effect from the current input line." }
+{ $examples "This word is used by " { $link POSTPONE: ( } " and " { $link POSTPONE: (( } " to parse stack effect declarations." }
+$parsing-note ;
+
diff --git a/core/effects/parser/parser.factor b/core/effects/parser/parser.factor
new file mode 100644
index 0000000000..77bcd7cad6
--- /dev/null
+++ b/core/effects/parser/parser.factor
@@ -0,0 +1,28 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: lexer sets sequences kernel splitting effects
+combinators arrays parser ;
+IN: effects.parser
+
+DEFER: parse-effect
+
+ERROR: bad-effect ;
+
+: parse-effect-token ( end -- token/f )
+    scan tuck = [ drop f ] [
+        dup { f "(" "((" } member? [ bad-effect ] [
+            ":" ?tail [
+                scan-word {
+                    { \ ( [ ")" parse-effect ] }
+                    [ ]
+                } case 2array
+            ] when
+        ] if
+    ] if ;
+
+: parse-effect-tokens ( end -- tokens )
+    [ parse-effect-token dup ] curry [ ] [ drop ] produce ;
+
+: parse-effect ( end -- effect )
+    parse-effect-tokens { "--" } split1 dup
+    [ <effect> ] [ "Stack effect declaration must contain --" throw ] if ;
diff --git a/core/float-arrays/float-arrays-tests.factor b/core/float-arrays/float-arrays-tests.factor
deleted file mode 100755
index 0918eecd84..0000000000
--- a/core/float-arrays/float-arrays-tests.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-IN: float-arrays.tests
-USING: float-arrays tools.test ;
-
-[ F{ 1.0 1.0 1.0 } ] [ 3 1.0 <float-array> ] unit-test
-
-[ F{ 1 2 3 0 0 0 } ] [ 6 F{ 1 2 3 } resize-float-array ] unit-test
-
-[ F{ 1 2 } ] [ 2 F{ 1 2 3 4 5 6 7 8 9 } resize-float-array ] unit-test
-
-[ -10 F{ } resize-float-array ] must-fail
diff --git a/core/float-arrays/float-arrays.factor b/core/float-arrays/float-arrays.factor
deleted file mode 100755
index d25d447a46..0000000000
--- a/core/float-arrays/float-arrays.factor
+++ /dev/null
@@ -1,43 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel kernel.private alien.accessors sequences
-sequences.private math math.private ;
-IN: float-arrays
-
-<PRIVATE
-
-: float-array@ swap >fixnum 8 fixnum*fast ; inline
-
-PRIVATE>
-
-M: float-array clone (clone) ;
-M: float-array length array-capacity ;
-
-M: float-array nth-unsafe
-    float-array@ alien-double ;
-
-M: float-array set-nth-unsafe
-    >r >r >float r> r> float-array@ set-alien-double ;
-
-: >float-array ( seq -- float-array ) F{ } clone-like ; inline
-
-M: float-array like
-    drop dup float-array? [ >float-array ] unless ;
-
-M: float-array new-sequence drop 0.0 <float-array> ;
-
-M: float-array equal?
-    over float-array? [ sequence= ] [ 2drop f ] if ;
-
-M: float-array resize
-    resize-float-array ;
-
-INSTANCE: float-array sequence
-
-: 1float-array ( x -- array ) 1 swap <float-array> ; flushable
-
-: 2float-array ( x y -- array ) F{ } 2sequence ; flushable
-
-: 3float-array ( x y z -- array ) F{ } 3sequence ; flushable
-
-: 4float-array ( w x y z -- array ) F{ } 4sequence ; flushable
diff --git a/core/generator/generator.factor b/core/generator/generator.factor
deleted file mode 100755
index b8de9c3517..0000000000
--- a/core/generator/generator.factor
+++ /dev/null
@@ -1,271 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs classes combinators cpu.architecture
-effects generator.fixup generator.registers generic hashtables
-inference inference.backend inference.dataflow io kernel
-kernel.private layouts math namespaces optimizer
-optimizer.specializers prettyprint quotations sequences system
-threads words vectors ;
-IN: generator
-
-SYMBOL: compile-queue
-SYMBOL: compiled
-
-: queue-compile ( word -- )
-    {
-        { [ dup compiled get key? ] [ drop ] }
-        { [ dup inlined-block? ] [ drop ] }
-        { [ dup primitive? ] [ drop ] }
-        [ dup compile-queue get set-at ]
-    } cond ;
-
-: maybe-compile ( word -- )
-    dup compiled? [ drop ] [ queue-compile ] if ;
-
-SYMBOL: compiling-word
-
-SYMBOL: compiling-label
-
-SYMBOL: compiling-loops
-
-! Label of current word, after prologue, makes recursion faster
-SYMBOL: current-label-start
-
-: compiled-stack-traces? ( -- ? ) 36 getenv ;
-
-: begin-compiling ( word label -- )
-    H{ } clone compiling-loops set
-    compiling-label set
-    compiling-word set
-    compiled-stack-traces?
-    compiling-word get f ?
-    1vector literal-table set
-    f compiling-label get compiled get set-at ;
-
-: save-machine-code ( literals relocation labels code -- )
-    4array compiling-label get compiled get set-at ;
-
-: with-generator ( node word label quot -- )
-    [
-        >r begin-compiling r>
-        { } make fixup
-        save-machine-code
-    ] with-scope ; inline
-
-GENERIC: generate-node ( node -- next )
-
-: generate-nodes ( node -- )
-    [ node@ generate-node ] iterate-nodes end-basic-block ;
-
-: init-generate-nodes ( -- )
-    init-templates
-    %save-word-xt
-    %prologue-later
-    current-label-start define-label
-    current-label-start resolve-label ;
-
-: generate ( node word label -- )
-    [
-        init-generate-nodes
-        [ generate-nodes ] with-node-iterator
-    ] with-generator ;
-
-: word-dataflow ( word -- effect dataflow )
-    [
-        dup "no-effect" word-prop [ no-effect ] when
-        dup "no-compile" word-prop [ no-effect ] when
-        dup specialized-def over dup 2array 1array infer-quot
-        finish-word
-    ] with-infer ;
-
-: intrinsics ( #call -- quot )
-    node-param "intrinsics" word-prop ;
-
-: if-intrinsics ( #call -- quot )
-    node-param "if-intrinsics" word-prop ;
-
-! node
-M: node generate-node drop iterate-next ;
-
-: %jump ( word -- )
-    dup compiling-label get eq?
-    [ drop current-label-start get ] [ %epilogue-later ] if
-    %jump-label ;
-
-: generate-call ( label -- next )
-    dup maybe-compile
-    end-basic-block
-    dup compiling-loops get at [
-        %jump-label f
-    ] [
-        tail-call? [
-            %jump f
-        ] [
-            0 frame-required
-            %call
-            iterate-next
-        ] if
-    ] ?if ;
-
-! #label
-M: #label generate-node
-    dup node-param generate-call >r
-    dup node-child over #label-word rot node-param generate
-    r> ;
-
-! #loop
-: compiling-loop ( word -- )
-    <label> dup resolve-label swap compiling-loops get set-at ;
-
-M: #loop generate-node
-    end-basic-block
-    dup node-param compiling-loop
-    node-child generate-nodes
-    iterate-next ;
-
-! #if
-: end-false-branch ( label -- )
-    tail-call? [ %return drop ] [ %jump-label ] if ;
-
-: generate-branch ( node -- )
-    [ copy-templates generate-nodes ] with-scope ;
-
-: generate-if ( node label -- next )
-    <label> [
-        >r >r node-children first2 swap generate-branch
-        r> r> end-false-branch resolve-label
-        generate-branch
-        init-templates
-    ] keep resolve-label iterate-next ;
-
-M: #if generate-node
-    [ <label> dup %jump-f ]
-    H{ { +input+ { { f "flag" } } } }
-    with-template
-    generate-if ;
-
-! #dispatch
-: dispatch-branch ( node word -- label )
-    gensym [
-        [
-            copy-templates
-            %save-dispatch-xt
-            %prologue-later
-            [ generate-nodes ] with-node-iterator
-        ] with-generator
-    ] keep ;
-
-: dispatch-branches ( node -- )
-    node-children [
-        compiling-word get dispatch-branch
-        %dispatch-label
-    ] each ;
-
-: generate-dispatch ( node -- )
-    %dispatch dispatch-branches init-templates ;
-
-M: #dispatch generate-node
-    #! The order here is important, dispatch-branches must
-    #! run after %dispatch, so that each branch gets the
-    #! correct register state
-    tail-call? [
-        generate-dispatch iterate-next
-    ] [
-        compiling-word get gensym [
-            [
-                init-generate-nodes
-                generate-dispatch
-            ] with-generator
-        ] keep generate-call
-    ] if ;
-
-! #call
-: define-intrinsics ( word intrinsics -- )
-    "intrinsics" set-word-prop ;
-
-: define-intrinsic ( word quot assoc -- )
-    2array 1array define-intrinsics ;
-
-: define-if>branch-intrinsics ( word intrinsics -- )
-    "if-intrinsics" set-word-prop ;
-
-: if>boolean-intrinsic ( quot -- )
-    "false" define-label
-    "end" define-label
-    "false" get swap call
-    t "if-scratch" get load-literal
-    "end" get %jump-label
-    "false" resolve-label
-    f "if-scratch" get load-literal
-    "end" resolve-label
-    "if-scratch" get phantom-push ; inline
-
-: define-if>boolean-intrinsics ( word intrinsics -- )
-    [
-        >r [ if>boolean-intrinsic ] curry r>
-        { { f "if-scratch" } } +scratch+ associate assoc-union
-    ] assoc-map "intrinsics" set-word-prop ;
-
-: define-if-intrinsics ( word intrinsics -- )
-    [ +input+ associate ] assoc-map
-    2dup define-if>branch-intrinsics
-    define-if>boolean-intrinsics ;
-
-: define-if-intrinsic ( word quot inputs -- )
-    2array 1array define-if-intrinsics ;
-
-: do-if-intrinsic ( pair -- next )
-    <label> [
-        swap do-template
-        node> node-successor dup >node
-    ] keep generate-if ;
-
-: find-intrinsic ( #call -- pair/f )
-    intrinsics find-template ;
-
-: find-if-intrinsic ( #call -- pair/f )
-    dup node-successor #if? [
-        if-intrinsics find-template
-    ] [
-        drop f
-    ] if ;
-
-M: #call generate-node
-    dup node-input-classes set-operand-classes
-    dup find-if-intrinsic [
-        do-if-intrinsic
-    ] [
-        dup find-intrinsic [
-            do-template iterate-next
-        ] [
-            node-param generate-call
-        ] ?if
-    ] ?if ;
-
-! #call-label
-M: #call-label generate-node node-param generate-call ;
-
-! #push
-M: #push generate-node
-    node-out-d [ value-literal <constant> phantom-push ] each
-    iterate-next ;
-
-! #shuffle
-M: #shuffle generate-node
-    node-shuffle phantom-shuffle iterate-next ;
-
-M: #>r generate-node
-    node-in-d length
-    phantom->r
-    iterate-next ;
-
-M: #r> generate-node
-    node-out-d length
-    phantom-r>
-    iterate-next ;
-
-! #return
-M: #return generate-node
-    end-basic-block
-    node-param compiling-loops get key?
-    [ %return ] unless f ;
diff --git a/core/generator/tags.txt b/core/generator/tags.txt
deleted file mode 100644
index 86a7c8e637..0000000000
--- a/core/generator/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-compiler
diff --git a/core/generic/generic-docs.factor b/core/generic/generic-docs.factor
index 39293bfec9..becd855653 100755
--- a/core/generic/generic-docs.factor
+++ b/core/generic/generic-docs.factor
@@ -145,7 +145,7 @@ HELP: check-method
 { $error-description "Thrown if " { $link POSTPONE: M: } " or " { $link create-method } " is given an invalid class or generic word." } ;
 
 HELP: with-methods
-{ $values { "generic" generic } { "quot" "a quotation with stack effect " { $snippet "( methods -- )" } } }
+{ $values { "class" class } { "generic" generic } { "quot" "a quotation with stack effect " { $snippet "( methods -- )" } } }
 { $description "Applies a quotation to the generic word's methods hashtable, and regenerates the generic word's definition when the quotation returns." }
 $low-level-note ;
 
@@ -154,10 +154,6 @@ HELP: create-method
 { $description "Creates a method or returns an existing one. This is the runtime equivalent of " { $link POSTPONE: M: } "." }
 { $notes "To define a method, pass the output value to " { $link define } "." } ;
 
-HELP: implementors
-{ $values { "class" class } { "seq" "a sequence of generic words" } }
-{ $description "Finds all generic words in the dictionary implementing methods for this class." } ;
-
 HELP: forget-methods
 { $values { "class" class } }
 { $description "Remove all method definitions which specialize on the class." } ;
diff --git a/core/generic/generic-tests.factor b/core/generic/generic-tests.factor
index 600f422274..22c690ffaf 100755
--- a/core/generic/generic-tests.factor
+++ b/core/generic/generic-tests.factor
@@ -1,8 +1,8 @@
-USING: alien arrays definitions generic generic.standard
+USING: accessors alien arrays definitions generic generic.standard
 generic.math assocs hashtables io kernel math namespaces parser
 prettyprint sequences strings tools.test vectors words
-quotations classes classes.algebra continuations layouts
-classes.union sorting compiler.units ;
+quotations classes classes.algebra classes.tuple continuations
+layouts classes.union sorting compiler.units eval multiline ;
 IN: generic.tests
 
 GENERIC: foobar ( x -- y )
@@ -91,10 +91,7 @@ M: ratio big-generic-test "ratio" ;
 M: string big-generic-test "string" ;
 M: shit big-generic-test "shit" ;
 
-TUPLE: delegating ;
-
 [ T{ shit f } "shit" ] [ T{ shit f } big-generic-test ] unit-test
-[ T{ shit f } "shit" ] [ T{ delegating T{ shit f } } big-generic-test ] unit-test
 
 [ t ] [ \ + math-generic? ] unit-test
 
@@ -138,13 +135,13 @@ M: f tag-and-f 4 ;
 [ 3.4 3 ] [ 3.4 tag-and-f ] unit-test
 
 ! Issues with forget
-GENERIC: generic-forget-test-1
+GENERIC: generic-forget-test-1 ( a b -- c )
 
 M: integer generic-forget-test-1 / ;
 
 [ t ] [
     \ / usage [ word? ] filter
-    [ word-name "generic-forget-test-1/integer" = ] contains?
+    [ name>> "integer=>generic-forget-test-1" = ] contains?
 ] unit-test
 
 [ ] [
@@ -153,16 +150,16 @@ M: integer generic-forget-test-1 / ;
 
 [ f ] [
     \ / usage [ word? ] filter
-    [ word-name "generic-forget-test-1/integer" = ] contains?
+    [ name>> "integer=>generic-forget-test-1" = ] contains?
 ] unit-test
 
-GENERIC: generic-forget-test-2
+GENERIC: generic-forget-test-2 ( a b -- c )
 
 M: sequence generic-forget-test-2 = ;
 
 [ t ] [
     \ = usage [ word? ] filter
-    [ word-name "generic-forget-test-2/sequence" = ] contains?
+    [ name>> "sequence=>generic-forget-test-2" = ] contains?
 ] unit-test
 
 [ ] [
@@ -171,10 +168,10 @@ M: sequence generic-forget-test-2 = ;
 
 [ f ] [
     \ = usage [ word? ] filter
-    [ word-name "generic-forget-test-2/sequence" = ] contains?
+    [ name>> "sequence=>generic-forget-test-2" = ] contains?
 ] unit-test
 
-GENERIC: generic-forget-test-3
+GENERIC: generic-forget-test-3 ( a -- b )
 
 M: f generic-forget-test-3 ;
 
@@ -190,7 +187,7 @@ M: f generic-forget-test-3 ;
 
 : a-word ;
 
-GENERIC: a-generic
+GENERIC: a-generic ( a -- b )
 
 M: integer a-generic a-word ;
 
@@ -201,3 +198,27 @@ M: integer a-generic a-word ;
 [ ] [ "IN: generic.tests : a-generic ;" eval ] unit-test
 
 [ f ] [ "m" get \ a-word usage memq? ] unit-test
+
+! erg's regression
+[ ] [
+    <"
+    IN: compiler.tests
+
+    GENERIC: jeah ( a -- b )
+    TUPLE: boii ;
+    M: boii jeah ;
+    GENERIC: jeah* ( a -- b )
+    M: boii jeah* jeah ;
+    "> eval
+
+    <"
+    IN: compiler.tests
+    FORGET: boii
+    "> eval
+    
+    <"
+    IN: compiler.tests
+    TUPLE: boii ;
+    M: boii jeah ;
+    "> eval
+] unit-test
diff --git a/core/generic/generic.factor b/core/generic/generic.factor
index b9a556e316..c0a21dbaba 100755
--- a/core/generic/generic.factor
+++ b/core/generic/generic.factor
@@ -1,8 +1,9 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: words kernel sequences namespaces assocs hashtables
-definitions kernel.private classes classes.private
-classes.algebra quotations arrays vocabs effects combinators ;
+USING: accessors words kernel sequences namespaces assocs
+hashtables definitions kernel.private classes classes.private
+classes.algebra quotations arrays vocabs effects combinators
+sets ;
 IN: generic
 
 ! Method combination protocol
@@ -29,19 +30,19 @@ PREDICATE: method-spec < pair
 : order ( generic -- seq )
     "methods" word-prop keys sort-classes ;
 
-: specific-method ( class word -- class )
-    order min-class ;
+: specific-method ( class generic -- method/f )
+    tuck order min-class dup [ swap method ] [ 2drop f ] if ;
 
-GENERIC: effective-method ( ... generic -- method )
+GENERIC: effective-method ( generic -- method )
 
 : next-method-class ( class generic -- class/f )
     order [ class<= ] with filter reverse dup length 1 =
     [ drop f ] [ second ] if ;
 
-: next-method ( class generic -- class/f )
+: next-method ( class generic -- method/f )
     [ next-method-class ] keep method ;
 
-GENERIC: next-method-quot* ( class generic -- quot )
+GENERIC: next-method-quot* ( class generic combination -- quot )
 
 : next-method-quot ( class generic -- quot )
     dup "combination" word-prop next-method-quot* ;
@@ -52,25 +53,30 @@ GENERIC: next-method-quot* ( class generic -- quot )
 TUPLE: check-method class generic ;
 
 : check-method ( class generic -- class generic )
-    over class? over generic? and [
+    2dup [ class? ] [ generic? ] bi* and [
         \ check-method boa throw
     ] unless ; inline
 
-: with-methods ( generic quot -- )
-    swap [ "methods" word-prop swap call ] keep make-generic ;
-    inline
+: with-methods ( class generic quot -- )
+    [ drop changed-generic ]
+    [ [ "methods" word-prop ] dip call ]
+    [ drop make-generic drop ]
+    3tri ; inline
 
 : method-word-name ( class word -- string )
-    word-name "/" rot word-name 3append ;
+    [ name>> ] bi@ "=>" swap 3append ;
 
 PREDICATE: method-body < word
     "method-generic" word-prop >boolean ;
 
+M: method-body inline?
+    "method-generic" word-prop inline? ;
+
 M: method-body stack-effect
     "method-generic" word-prop stack-effect ;
 
 M: method-body crossref?
-    drop t ;
+    "forgotten" word-prop not ;
 
 : method-word-props ( class generic -- assoc )
     [
@@ -82,10 +88,15 @@ M: method-body crossref?
     check-method
     [ method-word-props ] 2keep
     method-word-name f <word>
-    [ set-word-props ] keep ;
+    swap >>props ;
+
+: with-implementors ( class generic quot -- )
+    [ swap implementors-map get at ] dip call ; inline
 
 : reveal-method ( method class generic -- )
-    [ set-at ] with-methods ;
+    [ [ conjoin ] with-implementors ]
+    [ [ set-at ] with-methods ]
+    2bi ;
 
 : create-method ( class generic -- method )
     2dup method dup [
@@ -94,9 +105,13 @@ M: method-body crossref?
         drop [ <method> dup ] 2keep reveal-method
     ] if ;
 
+PREDICATE: default-method < word "default" word-prop ;
+
+M: default-method irrelevant? drop t ;
+
 : <default-method> ( generic combination -- method )
-    object bootstrap-word pick <method>
-    [ -rot make-default-method define ] keep ;
+    [ drop object bootstrap-word swap <method> ] [ make-default-method ] 2bi
+    [ define ] [ drop t "default" set-word-prop ] [ drop ] 2tri ;
 
 : define-default-method ( generic combination -- )
     dupd <default-method> "default-method" set-word-prop ;
@@ -115,7 +130,10 @@ M: method-spec definition
     first2 method definition ;
 
 M: method-spec forget*
-    first2 method forget* ;
+    first2 method [ forgotten-definition ] [ forget* ] bi ;
+
+M: method-spec smart-usage
+    second smart-usage ;
 
 M: method-body definer
     drop \ M: \ ; ;
@@ -123,53 +141,37 @@ M: method-body definer
 M: method-body forget*
     dup "forgotten" word-prop [ drop ] [
         [
-            [ ]
-            [ "method-class" word-prop ]
-            [ "method-generic" word-prop ] tri
-            3dup method eq? [
-                [ delete-at ] with-methods
-                call-next-method
-            ] [ 3drop ] if
+            dup default-method? [ drop ] [
+                [
+                    [ "method-class" word-prop ]
+                    [ "method-generic" word-prop ] bi
+                    2dup method
+                ] keep eq?
+                [
+                    [ [ delete-at ] with-methods ]
+                    [ [ delete-at ] with-implementors ]
+                    2bi
+                ] [ 2drop ] if
+            ] if
         ]
-        [ t "forgotten" set-word-prop ] bi
+        [ call-next-method ] bi
     ] if ;
 
-: implementors* ( classes -- words )
-    all-words [
-        "methods" word-prop keys
-        swap [ key? ] curry contains?
-    ] with filter ;
+M: method-body smart-usage
+    "method-generic" word-prop smart-usage ;
 
-: implementors ( class -- seq )
-    dup associate implementors* ;
-
-: forget-methods ( class -- )
-    [ implementors ] [ [ swap 2array ] curry ] bi map forget-all ;
-
-M: class forget* ( class -- )
-    [
-        class-usages [
-            drop
-            [ forget-methods ]
-            [ update-map- ]
-            [ reset-class ]
-            tri
-        ] assoc-each
-    ]
-    [ call-next-method ] bi ;
-
-M: assoc update-methods ( assoc -- )
-    implementors* [ make-generic ] each ;
+M: sequence update-methods ( class seq -- )
+    implementors [
+        [ changed-generic ] [ make-generic drop ] 2bi
+    ] with each ;
 
 : define-generic ( word combination -- )
-    over "combination" word-prop over = [
-        2drop
-    ] [
+    over "combination" word-prop over = [ drop ] [
         2dup "combination" set-word-prop
+        over "methods" word-prop values forget-all
         over H{ } clone "methods" set-word-prop
         dupd define-default-method
-        make-generic
-    ] if ;
+    ] if make-generic ;
 
 M: generic subwords
     [
diff --git a/core/generic/math/math-docs.factor b/core/generic/math/math-docs.factor
index 5c15e43eb5..b0201f3248 100755
--- a/core/generic/math/math-docs.factor
+++ b/core/generic/math/math-docs.factor
@@ -15,7 +15,7 @@ HELP: no-math-method
 HELP: math-method
 { $values { "word" generic } { "class1" class } { "class2" class } { "quot" quotation } }
 { $description "Generates a definition for " { $snippet "word" } " when the two inputs are instances of " { $snippet "class1" } " and " { $snippet "class2" } ", respectively." }
-{ $examples { $example "USING: generic.math math prettyprint ;" "\\ + fixnum float math-method ." "[ [ >float ] dip +/float ]" } } ;
+{ $examples { $example "USING: generic.math math prettyprint ;" "\\ + fixnum float math-method ." "[ [ >float ] dip float=>+ ]" } } ;
 
 HELP: math-class
 { $class-description "The class of subtypes of " { $link number } " which are not " { $link null } "." } ;
diff --git a/core/generic/math/math.factor b/core/generic/math/math.factor
index 1c1368a6c2..834e19d9d9 100755
--- a/core/generic/math/math.factor
+++ b/core/generic/math/math.factor
@@ -22,8 +22,14 @@ PREDICATE: math-class < class
         [ drop { 100 100 } ]
     } cond ;
     
-: math-class-max ( class class -- class )
-    [ [ math-precedence ] compare +gt+ eq? ] most ;
+: math-class<=> ( class1 class2 -- class )
+    [ math-precedence ] compare +gt+ eq? ;
+
+: math-class-max ( class1 class2 -- class )
+    [ math-class<=> ] most ;
+
+: math-class-min ( class1 class2 -- class )
+    [ swap math-class<=> ] most ;
 
 : (math-upgrade) ( max class -- quot )
     dupd = [ drop [ ] ] [ "coercer" word-prop [ ] or ] if ;
diff --git a/core/generic/parser/parser.factor b/core/generic/parser/parser.factor
new file mode 100644
index 0000000000..70f57f85e3
--- /dev/null
+++ b/core/generic/parser/parser.factor
@@ -0,0 +1,30 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: parser kernel words generic namespaces ;
+IN: generic.parser
+
+ERROR: not-in-a-method-error ;
+
+: CREATE-GENERIC ( -- word ) CREATE dup reset-word ;
+
+: create-method-in ( class generic -- method )
+    create-method f set-word dup save-location ;
+
+: CREATE-METHOD ( -- method )
+    scan-word bootstrap-word scan-word create-method-in ;
+
+SYMBOL: current-class
+SYMBOL: current-generic
+
+: with-method-definition ( quot -- parsed )
+    [
+        >r
+        [ "method-class" word-prop current-class set ]
+        [ "method-generic" word-prop current-generic set ]
+        [ ] tri
+        r> call
+    ] with-scope ; inline
+
+: (M:) ( method def -- )
+    CREATE-METHOD [ parse-definition ] with-method-definition ;
+
diff --git a/core/generic/standard/engines/engines.factor b/core/generic/standard/engines/engines.factor
index 20e22fde82..6a5e8d1bb0 100644
--- a/core/generic/standard/engines/engines.factor
+++ b/core/generic/standard/engines/engines.factor
@@ -1,16 +1,16 @@
-USING: assocs kernel namespaces quotations generic math
-sequences combinators words classes.algebra ;
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs kernel kernel.private namespaces quotations
+generic math sequences combinators words classes.algebra arrays
+;
 IN: generic.standard.engines
 
 SYMBOL: default
 SYMBOL: assumed
+SYMBOL: (dispatch#)
 
 GENERIC: engine>quot ( engine -- quot )
 
-M: quotation engine>quot ;
-
-M: method-body engine>quot 1quotation ;
-
 : engines>quots ( assoc -- assoc' )
     [ engine>quot ] assoc-map ;
 
@@ -22,7 +22,11 @@ M: method-body engine>quot 1quotation ;
 
 : linear-dispatch-quot ( alist -- quot )
     default get [ drop ] prepend swap
-    [ >r [ dupd eq? ] curry r> \ drop prefix ] assoc-map
+    [
+        [ [ dup ] swap [ eq? ] curry compose ]
+        [ [ drop ] prepose ]
+        bi* [ ] like
+    ] assoc-map
     alist>quot ;
 
 : split-methods ( assoc class -- first second )
@@ -30,14 +34,12 @@ M: method-body engine>quot 1quotation ;
     [ [ nip class<=     ] curry assoc-filter ] 2bi ;
 
 : convert-methods ( assoc class word -- assoc' )
-    over >r >r split-methods dup assoc-empty? [
-        r> r> 3drop
+    over [ split-methods ] 2dip pick assoc-empty? [
+        3drop
     ] [
-        r> execute r> pick set-at
+        [ execute ] dip pick set-at
     ] if ; inline
 
-SYMBOL: (dispatch#)
-
 : (picker) ( n -- quot )
     {
         { 0 [ [ dup ] ] }
diff --git a/core/generic/standard/engines/predicate/predicate.factor b/core/generic/standard/engines/predicate/predicate.factor
index 9c810592a0..8846c9eee7 100644
--- a/core/generic/standard/engines/predicate/predicate.factor
+++ b/core/generic/standard/engines/predicate/predicate.factor
@@ -1,6 +1,8 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
 USING: generic.standard.engines generic namespaces kernel
-sequences classes.algebra accessors words combinators
-assocs ;
+kernel.private sequences classes.algebra accessors words
+combinators assocs arrays ;
 IN: generic.standard.engines.predicate
 
 TUPLE: predicate-dispatch-engine methods ;
@@ -24,8 +26,13 @@ C: <predicate-dispatch-engine> predicate-dispatch-engine
 : sort-methods ( assoc -- assoc' )
     >alist [ keys sort-classes ] keep extract-keys ;
 
+: methods-with-default ( engine -- assoc )
+    methods>> clone default get object bootstrap-word pick set-at ;
+
 M: predicate-dispatch-engine engine>quot
-    methods>> clone
-    default get object bootstrap-word pick set-at engines>quots
-    sort-methods prune-redundant-predicates
-    class-predicates alist>quot ;
+    methods-with-default
+    engines>quots
+    sort-methods
+    prune-redundant-predicates
+    class-predicates
+    alist>quot ;
diff --git a/core/generic/standard/engines/tag/tag.factor b/core/generic/standard/engines/tag/tag.factor
index 6344bec536..02a7af105f 100644
--- a/core/generic/standard/engines/tag/tag.factor
+++ b/core/generic/standard/engines/tag/tag.factor
@@ -38,13 +38,13 @@ C: <hi-tag-dispatch-engine> hi-tag-dispatch-engine
     \ hi-tag bootstrap-word
     \ <hi-tag-dispatch-engine> convert-methods ;
 
-: num-hi-tags num-types get num-tags get - ;
+: num-hi-tags ( -- n ) num-types get num-tags get - ;
 
 : hi-tag-number ( class -- n )
     "type" word-prop num-tags get - ;
 
 : hi-tag-quot ( -- quot )
-    [ hi-tag ] num-tags get [ fixnum-fast ] curry compose ;
+    [ 0 slot ] num-tags get [ fixnum-fast ] curry compose ;
 
 M: hi-tag-dispatch-engine engine>quot
     methods>> engines>quots* [ >r hi-tag-number r> ] assoc-map
diff --git a/core/generic/standard/engines/tuple/tuple.factor b/core/generic/standard/engines/tuple/tuple.factor
index 51ea4f8225..325f2ebb39 100644
--- a/core/generic/standard/engines/tuple/tuple.factor
+++ b/core/generic/standard/engines/tuple/tuple.factor
@@ -4,7 +4,7 @@ USING: kernel classes.tuple.private hashtables assocs sorting
 accessors combinators sequences slots.private math.parser words
 effects namespaces generic generic.standard.engines
 classes.algebra math math.private kernel.private
-quotations arrays ;
+quotations arrays definitions ;
 IN: generic.standard.engines.tuple
 
 TUPLE: echelon-dispatch-engine n methods ;
@@ -18,7 +18,7 @@ C: <trivial-tuple-dispatch-engine> trivial-tuple-dispatch-engine
 TUPLE: tuple-dispatch-engine echelons ;
 
 : push-echelon ( class method assoc -- )
-    >r swap dup "layout" word-prop layout-echelon r>
+    >r swap dup "layout" word-prop echelon>> r>
     [ ?set-at ] change-at ;
 
 : echelon-sort ( assoc -- assoc' )
@@ -44,7 +44,7 @@ M: trivial-tuple-dispatch-engine engine>quot
     >alist V{ } clone [ hashcode 1array ] distribute-buckets
     [ <trivial-tuple-dispatch-engine> ] map ;
 
-: word-hashcode% [ 1 slot ] % ;
+: word-hashcode% ( -- ) [ 1 slot ] % ;
 
 : class-hash-dispatch-quot ( methods -- quot )
     [
@@ -54,7 +54,7 @@ M: trivial-tuple-dispatch-engine engine>quot
     ] [ ] make ;
 
 : engine-word-name ( -- string )
-    generic get word-name "/tuple-dispatch-engine" append ;
+    generic get name>> "/tuple-dispatch-engine" append ;
 
 PREDICATE: engine-word < word
     "tuple-dispatch-generic" word-prop generic? ;
@@ -64,8 +64,12 @@ M: engine-word stack-effect
     [ extra-values ] [ stack-effect ] bi
     dup [ clone [ length + ] change-in ] [ 2drop f ] if ;
 
-M: engine-word compiled-crossref?
-    drop t ;
+M: engine-word inline?
+    "tuple-dispatch-generic" word-prop inline? ;
+
+M: engine-word crossref? "forgotten" word-prop not ;
+
+M: engine-word irrelevant? drop t ;
 
 : remember-engine ( word -- )
     generic get "engines" word-prop push ;
@@ -77,17 +81,19 @@ M: engine-word compiled-crossref?
 : define-engine-word ( quot -- word )
     >r <engine-word> dup r> define ;
 
-: array-nth% 2 + , [ slot { word } declare ] % ;
+: array-nth% ( n -- ) 2 + , [ slot { word } declare ] % ;
 
-: tuple-layout-superclasses ( obj -- array )
-    { tuple } declare
-    1 slot { tuple-layout } declare
-    4 slot { array } declare ; inline
+: tuple-layout-superclasses% ( -- )
+    [
+        { tuple } declare
+        1 slot { tuple-layout } declare
+        4 slot { array } declare
+    ] % ; inline
 
 : tuple-dispatch-engine-body ( engine -- quot )
     [
         picker %
-        [ tuple-layout-superclasses ] %
+        tuple-layout-superclasses%
         [ n>> array-nth% ]
         [
             methods>> [
@@ -105,7 +111,7 @@ M: echelon-dispatch-engine engine>quot
     ] [
         [
             picker %
-            [ tuple-layout-superclasses ] %
+            tuple-layout-superclasses%
             [ n>> array-nth% ]
             [
                 methods>> [
@@ -119,18 +125,24 @@ M: echelon-dispatch-engine engine>quot
 
 : >=-case-quot ( alist -- quot )
     default get [ drop ] prepend swap
-    [ >r [ dupd fixnum>= ] curry r> \ drop prefix ] assoc-map
+    [
+        [ [ dup ] swap [ fixnum>= ] curry compose ]
+        [ [ drop ] prepose ]
+        bi* [ ] like
+    ] assoc-map
     alist>quot ;
 
-: tuple-layout-echelon ( obj -- array )
-    { tuple } declare
-    1 slot { tuple-layout } declare
-    5 slot ; inline
+: tuple-layout-echelon% ( -- )
+    [
+        { tuple } declare
+        1 slot { tuple-layout } declare
+        5 slot
+    ] % ; inline
 
 M: tuple-dispatch-engine engine>quot
     [
         picker %
-        [ tuple-layout-echelon ] %
+        tuple-layout-echelon%
         [
             tuple assumed set
             echelons>> dup empty? [
diff --git a/core/generic/standard/standard-tests.factor b/core/generic/standard/standard-tests.factor
index 1bff9ae15d..52d73a9a4c 100644
--- a/core/generic/standard/standard-tests.factor
+++ b/core/generic/standard/standard-tests.factor
@@ -2,10 +2,11 @@ IN: generic.standard.tests
 USING: tools.test math math.functions math.constants
 generic.standard strings sequences arrays kernel accessors
 words float-arrays byte-arrays bit-arrays parser namespaces
-quotations inference vectors growable hashtables sbufs
-prettyprint byte-vectors bit-vectors float-vectors ;
+quotations stack-checker vectors growable hashtables sbufs
+prettyprint byte-vectors bit-vectors float-vectors definitions
+generic sets graphs assocs ;
 
-GENERIC: lo-tag-test
+GENERIC: lo-tag-test ( obj -- obj' )
 
 M: integer lo-tag-test 3 + ;
 
@@ -20,7 +21,7 @@ M: complex lo-tag-test sq ;
 [ -1/2 ] [ 1+1/2 lo-tag-test ] unit-test
 [ -16 ] [ C{ 0 4 } lo-tag-test ] unit-test
 
-GENERIC: hi-tag-test
+GENERIC: hi-tag-test ( obj -- obj' )
 
 M: string hi-tag-test ", in bed" append ;
 
@@ -52,7 +53,7 @@ TUPLE: circle < shape radius ;
 
 C: <circle> circle
 
-GENERIC: area
+GENERIC: area ( shape -- n )
 
 M: abstract-rectangle area [ width>> ] [ height>> ] bi * ;
 
@@ -62,15 +63,15 @@ M: circle area radius>> sq pi * ;
 [ 12 ] [ 4 3 2 <parallelogram> area ] unit-test
 [ t ] [ 2 <circle> area 4 pi * = ] unit-test
 
-GENERIC: perimiter
+GENERIC: perimiter ( shape -- n )
 
-: rectangle-perimiter + 2 * ;
+: rectangle-perimiter ( n -- n ) + 2 * ;
 
 M: rectangle perimiter
     [ width>> ] [ height>> ] bi
     rectangle-perimiter ;
 
-: hypotenuse [ sq ] bi@ + sqrt ;
+: hypotenuse ( a b -- c ) [ sq ] bi@ + sqrt ;
 
 M: parallelogram perimiter
     [ width>> ]
@@ -80,9 +81,9 @@ M: parallelogram perimiter
 M: circle perimiter 2 * pi * ;
 
 [ 14 ] [ 4 3 <rectangle> perimiter ] unit-test
-[ 30 ] [ 10 4 3 <parallelogram> perimiter ] unit-test
+[ 30.0 ] [ 10 4 3 <parallelogram> perimiter ] unit-test
 
-GENERIC: big-mix-test
+GENERIC: big-mix-test ( obj -- obj' )
 
 M: object big-mix-test drop "object" ;
 
@@ -124,7 +125,7 @@ M: circle big-mix-test drop "circle" ;
 [ "tuple" ] [ H{ } big-mix-test ] unit-test
 [ "object" ] [ \ + big-mix-test ] unit-test
 
-GENERIC: small-lo-tag
+GENERIC: small-lo-tag ( obj -- obj )
 
 M: fixnum small-lo-tag drop "fixnum" ;
 
@@ -225,7 +226,7 @@ M: b funky* "b" , call-next-method ;
 
 M: c funky* "c" , call-next-method ;
 
-: funky [ funky* ] { } make ;
+: funky ( obj -- seq ) [ funky* ] { } make ;
 
 [ { "b" "x" "z" } ] [ T{ b } funky ] unit-test
 
@@ -286,4 +287,33 @@ M: sbuf no-stack-effect-decl ;
 
 [ ] [ \ no-stack-effect-decl see ] unit-test
 
-[ ] [ \ no-stack-effect-decl word-def . ] unit-test
+[ ] [ \ no-stack-effect-decl def>> . ] unit-test
+
+! Cross-referencing with generic words
+TUPLE: xref-tuple-1 ;
+TUPLE: xref-tuple-2 < xref-tuple-1 ;
+
+: (xref-test) ( obj -- ) drop ;
+
+GENERIC: xref-test ( obj -- )
+
+M: xref-tuple-1 xref-test (xref-test) ;
+M: xref-tuple-2 xref-test (xref-test) ;
+
+[ t ] [
+    \ xref-test
+    \ xref-tuple-1 \ xref-test method [ usage unique ] closure key?
+] unit-test
+
+[ t ] [
+    \ xref-test
+    \ xref-tuple-2 \ xref-test method [ usage unique ] closure key?
+] unit-test
+
+[ t ] [
+    { } \ nth effective-method nip \ sequence \ nth method eq?
+] unit-test
+
+[ t ] [
+    \ + \ nth effective-method nip dup \ nth "default-method" word-prop eq? and
+] unit-test
diff --git a/core/generic/standard/standard.factor b/core/generic/standard/standard.factor
index 98194e7ef3..860781e5e2 100644
--- a/core/generic/standard/standard.factor
+++ b/core/generic/standard/standard.factor
@@ -10,33 +10,22 @@ IN: generic.standard
 
 GENERIC: dispatch# ( word -- n )
 
-M: word dispatch# "combination" word-prop dispatch# ;
+M: generic dispatch#
+    "combination" word-prop dispatch# ;
 
-: unpickers
-    {
-        [ nip ]
-        [ >r nip r> swap ]
-        [ >r >r nip r> r> -rot ]
-    } ; inline
+GENERIC: method-declaration ( class generic -- quot )
 
-: unpicker ( -- quot ) \ (dispatch#) get unpickers nth ;
+M: generic method-declaration
+    "combination" word-prop method-declaration ;
+
+M: quotation engine>quot
+    assumed get generic get method-declaration prepend ;
 
 ERROR: no-method object generic ;
 
 : error-method ( word -- quot )
     picker swap [ no-method ] curry append ;
 
-: empty-method ( word -- quot )
-    [
-        picker % [ delegate dup ] %
-        unpicker over suffix ,
-        error-method \ drop prefix , \ if ,
-    ] [ ] make ;
-
-: default-method ( word -- pair )
-    "default-method" word-prop
-    object bootstrap-word swap 2array ;
-
 : push-method ( method specializer atomic assoc -- )
     [
         [ H{ } clone <predicate-dispatch-engine> ] unless*
@@ -81,14 +70,8 @@ ERROR: no-method object generic ;
                 "methods" word-prop
                 [ generic get mangle-method ] assoc-map
                 [ find-default default set ]
-                [
-                    generic get "inline" word-prop [
-                        <predicate-dispatch-engine>
-                    ] [
-                        <big-dispatch-engine>
-                    ] if
-                ] bi
-                engine>quot
+                [ <big-dispatch-engine> ]
+                bi engine>quot
             ]
         } cleave
     ] with-scope ;
@@ -99,11 +82,11 @@ ERROR: no-next-method class generic ;
 
 : single-next-method-quot ( class generic -- quot )
     [
-        [ drop [ instance? ] curry % ]
+        [ drop "predicate" word-prop % ]
         [
             2dup next-method
             [ 2nip 1quotation ]
-            [ [ no-next-method ] 2curry ] if* ,
+            [ [ no-next-method ] 2curry [ ] like ] if* ,
         ]
         [ [ inconsistent-next-method ] 2curry , ]
         2tri
@@ -111,7 +94,9 @@ ERROR: no-next-method class generic ;
     ] [ ] make ;
 
 : single-effective-method ( obj word -- method )
-    [ order [ instance? ] with find-last nip ] keep method ;
+    [ [ order [ instance? ] with find-last nip ] keep method ]
+    [ "default-method" word-prop ]
+    bi or ;
 
 TUPLE: standard-combination # ;
 
@@ -132,13 +117,16 @@ PREDICATE: simple-generic < standard-generic
 M: standard-generic extra-values drop 0 ;
 
 M: standard-combination make-default-method
-    [ empty-method ] with-standard ;
+    [ error-method ] with-standard ;
 
 M: standard-combination perform-combination
     [ drop ] [ [ single-combination ] with-standard ] 2bi define ;
 
 M: standard-combination dispatch# #>> ;
 
+M: standard-combination method-declaration
+    dispatch# object <array> swap prefix [ declare ] curry [ ] like ;
+
 M: standard-combination next-method-quot*
     [
         single-next-method-quot picker prepend
@@ -161,6 +149,8 @@ PREDICATE: hook-generic < generic
 
 M: hook-combination dispatch# drop 0 ;
 
+M: hook-combination method-declaration 2drop [ ] ;
+
 M: hook-generic extra-values drop 1 ;
 
 M: hook-generic effective-method
diff --git a/core/graphs/graphs.factor b/core/graphs/graphs.factor
index 973d49f1fa..f2003641de 100644
--- a/core/graphs/graphs.factor
+++ b/core/graphs/graphs.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2006, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: assocs kernel namespaces sequences ;
+USING: assocs kernel namespaces sequences sets ;
 IN: graphs
 
 SYMBOL: graph
@@ -37,14 +37,14 @@ SYMBOL: graph
 
 SYMBOL: previous
 
-: (closure) ( obj quot -- )
+: (closure) ( obj quot: ( elt -- assoc ) -- )
     over previous get key? [
         2drop
     ] [
-        over dup previous get set-at
+        over previous get conjoin
         dup slip
         [ nip (closure) ] curry assoc-each
-    ] if ; inline
+    ] if ; inline recursive
 
 : closure ( obj quot -- assoc )
     H{ } clone [
diff --git a/extra/xmode/rules/authors.txt b/core/grouping/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/xmode/rules/authors.txt
rename to core/grouping/authors.txt
diff --git a/core/grouping/grouping-docs.factor b/core/grouping/grouping-docs.factor
new file mode 100644
index 0000000000..3b3a98eabd
--- /dev/null
+++ b/core/grouping/grouping-docs.factor
@@ -0,0 +1,104 @@
+USING: help.markup help.syntax sequences strings ;
+IN: grouping
+
+ARTICLE: "grouping" "Groups and clumps"
+"Splitting a sequence into disjoint, fixed-length subsequences:"
+{ $subsection group }
+"A virtual sequence for splitting a sequence into disjoint, fixed-length subsequences:"
+{ $subsection groups }
+{ $subsection <groups> }
+{ $subsection <sliced-groups> }
+"Splitting a sequence into overlapping, fixed-length subsequences:"
+{ $subsection clump }
+"A virtual sequence for splitting a sequence into overlapping, fixed-length subsequences:"
+{ $subsection clumps }
+{ $subsection <clumps> }
+{ $subsection <sliced-clumps> }
+"The difference can be summarized as the following:"
+{ $list
+    { "With groups, the subsequences form the original sequence when concatenated:"
+        { $unchecked-example "dup n groups concat sequence= ." "t" }
+    }
+    { "With clumps, collecting the first element of each subsequence but the last one, together with the last subseqence, yields the original sequence:"
+        { $unchecked-example "dup n clumps unclip-last >r [ first ] map r> append sequence= ." "t" }
+    }
+} ;
+
+ABOUT: "grouping"
+
+HELP: groups
+{ $class-description "Instances are virtual sequences whose elements are disjoint fixed-length subsequences of an underlying sequence. Groups are mutable and resizable if the underlying sequence is mutable and resizable, respectively."
+$nl
+"New groups are created by calling " { $link <groups> } " and " { $link <sliced-groups> } "." }
+{ $see-also group } ;
+
+HELP: group
+{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "array" "a sequence of sequences" } }
+{ $description "Splits the sequence into disjoint groups of " { $snippet "n" } " elements and collects the groups into a new array." }
+{ $notes "If the sequence length is not a multiple of " { $snippet "n" } ", the final subsequence in the list will be shorter than " { $snippet "n" } " elements." }
+{ $examples
+    { $example "USING: grouping prettyprint ;" "{ 3 1 3 3 7 } 2 group ." "{ { 3 1 } { 3 3 } { 7 } }" }
+} ;
+
+HELP: <groups>
+{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "groups" groups } }
+{ $description "Outputs a virtual sequence whose elements are disjoint subsequences of " { $snippet "n" } " elements from the underlying sequence." }
+{ $examples
+    { $example
+        "USING: arrays kernel prettyprint sequences grouping ;"
+        "9 >array 3 <groups> dup reverse-here concat >array ." "{ 6 7 8 3 4 5 0 1 2 }"
+    }
+} ;
+
+HELP: <sliced-groups>
+{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "groups" groups } }
+{ $description "Outputs a virtual sequence whose elements are overlapping subsequences of " { $snippet "n" } " elements from the underlying sequence." }
+{ $examples
+    { $example
+        "USING: arrays kernel prettyprint sequences grouping ;"
+        "9 >array 3 <sliced-groups>"
+        "dup [ reverse-here ] each concat >array ."
+        "{ 2 1 0 5 4 3 8 7 6 }"
+    }
+} ;
+
+HELP: clumps
+{ $class-description "Instances are virtual sequences whose elements are overlapping fixed-length subsequences o an underlying sequence. Clumps are mutable and resizable if the underlying sequence is mutable and resizable, respectively."
+$nl
+"New clumps are created by calling " { $link <clumps> } " and " { $link <sliced-clumps> } "." } ;
+
+HELP: clump
+{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "array" "a sequence of sequences" } }
+{ $description "Splits the sequence into overlapping clumps of " { $snippet "n" } " elements and collects the clumps into a new array." }
+{ $errors "Throws an error if " { $snippet "n" } " is smaller than the length of the sequence." }
+{ $examples
+    { $example "USING: grouping prettyprint ;" "{ 3 1 3 3 7 } 2 clump ." "{ { 3 1 } { 1 3 } { 3 3 } { 3 7 } }" }
+} ;
+
+HELP: <clumps>
+{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "clumps" clumps } }
+{ $description "Outputs a virtual sequence whose elements are overlapping subsequences of " { $snippet "n" } " elements from the underlying sequence." }
+{ $examples
+    "Running averages:"
+    { $example
+        "USING: grouping sequences math prettyprint kernel ;"
+        "IN: scratchpad"
+        ": share-price"
+        "    { 13/50 51/100 13/50 1/10 4/5 17/20 33/50 3/25 19/100 3/100 } ;"
+        ""
+        "share-price 4 <clumps> [ [ sum ] [ length ] bi / ] map ."
+        "{ 113/400 167/400 201/400 241/400 243/400 91/200 1/4 }"
+    }
+} ;
+
+HELP: <sliced-clumps>
+{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "clumps" clumps } }
+{ $description "Outputs a virtual sequence whose elements are overlapping slices of " { $snippet "n" } " elements from the underlying sequence." } ;
+
+{ clumps groups } related-words
+
+{ clump group } related-words
+
+{ <clumps> <groups> } related-words
+
+{ <sliced-clumps> <sliced-groups> } related-words
diff --git a/core/grouping/grouping-tests.factor b/core/grouping/grouping-tests.factor
new file mode 100644
index 0000000000..dc3d970fbf
--- /dev/null
+++ b/core/grouping/grouping-tests.factor
@@ -0,0 +1,14 @@
+USING: grouping tools.test kernel sequences arrays ;
+IN: grouping.tests
+
+[ { 1 2 3 } 0 group ] must-fail
+
+[ { "hell" "o wo" "rld" } ] [ "hello world" 4 group ] unit-test
+
+[ { V{ "a" "b" } V{ f f } } ] [
+    V{ "a" "b" } clone 2 <groups>
+    2 over set-length
+    >array
+] unit-test
+
+[ { { 1 2 } { 2 3 } } ] [ { 1 2 3 } 2 <sliced-clumps> [ >array ] map ] unit-test
diff --git a/core/grouping/grouping.factor b/core/grouping/grouping.factor
new file mode 100644
index 0000000000..332fd2635a
--- /dev/null
+++ b/core/grouping/grouping.factor
@@ -0,0 +1,68 @@
+! Copyright (C) 2005, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math math.order strings arrays vectors sequences
+accessors ;
+IN: grouping
+
+TUPLE: abstract-groups { seq read-only } { n read-only } ;
+
+: check-groups dup 0 <= [ "Invalid group count" throw ] when ; inline
+
+: new-groups ( seq n class -- groups )
+    >r check-groups r> boa ; inline
+
+GENERIC: group@ ( n groups -- from to seq )
+
+M: abstract-groups nth group@ subseq ;
+
+M: abstract-groups set-nth group@ <slice> 0 swap copy ;
+
+M: abstract-groups like drop { } like ;
+
+INSTANCE: abstract-groups sequence
+
+TUPLE: groups < abstract-groups ;
+
+: <groups> ( seq n -- groups )
+    groups new-groups ; inline
+
+M: groups length
+    [ seq>> length ] [ n>> ] bi [ + 1- ] keep /i ;
+
+M: groups set-length
+    [ n>> * ] [ seq>> ] bi set-length ;
+
+M: groups group@
+    [ n>> [ * dup ] keep + ] [ seq>> ] bi [ length min ] keep ;
+
+TUPLE: sliced-groups < groups ;
+
+: <sliced-groups> ( seq n -- groups )
+    sliced-groups new-groups ; inline
+
+M: sliced-groups nth group@ <slice> ;
+
+TUPLE: clumps < abstract-groups ;
+
+: <clumps> ( seq n -- clumps )
+    clumps new-groups ; inline
+
+M: clumps length
+    [ seq>> length ] [ n>> ] bi - 1+ ;
+
+M: clumps set-length
+    [ n>> + 1- ] [ seq>> ] bi set-length ;
+
+M: clumps group@
+    [ n>> over + ] [ seq>> ] bi ;
+
+TUPLE: sliced-clumps < clumps ;
+
+: <sliced-clumps> ( seq n -- clumps )
+    sliced-clumps new-groups ; inline
+
+M: sliced-clumps nth group@ <slice> ;
+
+: group ( seq n -- array ) <groups> { } like ;
+
+: clump ( seq n -- array ) <clumps> { } like ;
diff --git a/core/grouping/summary.txt b/core/grouping/summary.txt
new file mode 100644
index 0000000000..3695129a07
--- /dev/null
+++ b/core/grouping/summary.txt
@@ -0,0 +1 @@
+Grouping sequence elements into subsequences
diff --git a/core/grouping/tags.txt b/core/grouping/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/core/grouping/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/core/growable/growable-docs.factor b/core/growable/growable-docs.factor
index 9de3c8ab24..9f950aa36c 100755
--- a/core/growable/growable-docs.factor
+++ b/core/growable/growable-docs.factor
@@ -7,31 +7,17 @@ ARTICLE: "growable" "Resizable sequence implementation"
 $nl
 "There is a resizable sequence mixin:"
 { $subsection growable }
-"This mixin implements the sequence protocol in terms of a growable protocol:"
-{ $subsection underlying }
-{ $subsection set-underlying }
-{ $subsection set-fill }
+"This mixin implements the sequence protocol by assuming the object has two specific slots:"
+{ $list
+    { { $snippet "length" } " - the fill pointer (number of occupied elements in the underlying storage)" }
+    { { $snippet "underlying" } " - the underlying storage" }
+}
 "The underlying sequence must implement a generic word:"
 { $subsection resize }
-{ $link "vectors" } " and " { $link "sbufs" } " are implemented using the resizable sequence facility." ;
+{ $link "vectors" } ", " { $link "byte-vectors" } " and " { $link "sbufs" } " are implemented using the resizable sequence facility." ;
 
 ABOUT: "growable"
 
-HELP: set-fill
-{ $values { "n" "a new fill pointer" } { "seq" growable } }
-{ $contract "Sets the fill pointer (number of occupied elements in the underlying storage) of a resizable sequence." }
-{ $side-effects "seq" }
-{ $warning "This word is not safe. Changing the fill pointer to a negative value, or a value higher than the underlying sequence length can lead to memory corruption. User code should use " { $link set-length } " instead." } ;
-
-HELP: underlying
-{ $values { "seq" growable } { "underlying" "the underlying sequence" } }
-{ $contract "Outputs the underlying storage of a resizable sequence." } ;
-
-HELP: set-underlying
-{ $values { "underlying" sequence } { "seq" growable } }
-{ $contract "Modifies the underlying storage of a resizable sequence." }
-{ $warning "This word is not safe. Setting an underlying sequence shorter than the fill pointer can lead to memory corruption." } ;
-
 HELP: capacity
 { $values { "seq" "a vector or string buffer" } { "n" "the capacity of the sequence" } }
 { $description "Outputs the number of elements the sequence can hold without growing." } ;
diff --git a/core/growable/growable.factor b/core/growable/growable.factor
index d660610e3f..336f1da91a 100644
--- a/core/growable/growable.factor
+++ b/core/growable/growable.factor
@@ -1,24 +1,24 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 
 ! Some low-level code used by vectors and string buffers.
-USING: kernel kernel.private math math.private
+USING: accessors kernel kernel.private math math.private
 sequences sequences.private ;
 IN: growable
 
 MIXIN: growable
-GENERIC: underlying ( seq -- underlying )
-GENERIC: set-underlying ( underlying seq -- )
-GENERIC: set-fill ( n seq -- )
 
-M: growable nth-unsafe underlying nth-unsafe ;
+SLOT: length
+SLOT: underlying
 
-M: growable set-nth-unsafe underlying set-nth-unsafe ;
+M: growable length length>> ;
+M: growable nth-unsafe underlying>> nth-unsafe ;
+M: growable set-nth-unsafe underlying>> set-nth-unsafe ;
 
-: capacity ( seq -- n ) underlying length ; inline
+: capacity ( seq -- n ) underlying>> length ; inline
 
 : expand ( len seq -- )
-    [ underlying resize ] keep set-underlying ; inline
+    [ resize ] change-underlying drop ; inline
 
 : contract ( len seq -- )
     [ length ] keep
@@ -35,7 +35,7 @@ M: growable set-length ( n seq -- )
     ] [
         2dup capacity > [ 2dup expand ] when
     ] if
-    >r >fixnum r> set-fill ;
+    (>>length) ;
 
 : new-size ( old -- new ) 1+ 3 * ; inline
 
@@ -44,20 +44,26 @@ M: growable set-length ( n seq -- )
     2dup length >= [
         2dup capacity >= [ over new-size over expand ] when
         >r >fixnum r>
-        2dup >r 1 fixnum+fast r> set-fill
+        over 1 fixnum+fast over (>>length)
     ] [
         >r >fixnum r>
     ] if ; inline
 
 M: growable set-nth ensure set-nth-unsafe ;
 
-M: growable clone ( seq -- newseq )
-    (clone) dup underlying clone over set-underlying ;
+M: growable clone (clone) [ clone ] change-underlying ;
 
 M: growable lengthen ( n seq -- )
     2dup length > [
         2dup capacity > [ over new-size over expand ] when
-        2dup >r >fixnum r> set-fill
+        2dup (>>length)
+    ] when 2drop ;
+
+M: growable shorten ( n seq -- )
+    growable-check
+    2dup length < [
+        2dup contract
+        2dup (>>length)
     ] when 2drop ;
 
 INSTANCE: growable sequence
diff --git a/core/hashtables/hashtables-docs.factor b/core/hashtables/hashtables-docs.factor
index aff59ee8a5..07517afdf7 100755
--- a/core/hashtables/hashtables-docs.factor
+++ b/core/hashtables/hashtables-docs.factor
@@ -8,11 +8,9 @@ ARTICLE: "hashtables.private" "Hashtable implementation details"
 $nl
 "There are two special objects: the " { $link ((tombstone)) } " marker and the " { $link ((empty)) } " marker. Neither of these markers can be used as hashtable keys."
 $nl
-"The " { $link hash-count } " slot is the number of entries including deleted entries, and " { $link hash-deleted } " is the number of deleted entries."
+"The " { $snippet "count" } " slot is the number of entries including deleted entries, and " { $snippet "deleted" } " is the number of deleted entries."
 { $subsection <hash-array> }
-{ $subsection nth-pair }
 { $subsection set-nth-pair }
-{ $subsection find-pair }
 "If a hashtable's keys are mutated, or if hashing algorithms change, hashtables can be rehashed:"
 { $subsection rehash } ;
 
@@ -74,24 +72,12 @@ HELP: new-key@
 { $values { "key" "a key" } { "hash" hashtable } { "array" "the underlying array of the hashtable" } { "n" "the index where the key would be stored" } { "empty?" "a boolean indicating whether the location is currently empty" } }
 { $description "Searches the hashtable for the key using a linear probing strategy. If the key is not present in the hashtable, outputs the index where it should be stored." } ;
 
-HELP: nth-pair
-{ $values { "n" "an index in the sequence" } { "seq" "a sequence" } { "key" "the first element of the pair" } { "value" "the second element of the pair" } }
-{ $description "Fetches the elements with index " { $snippet "n" } " and " { $snippet "n+1" } ", respectively." }
-{ $warning "This word is in the " { $vocab-link "hashtables.private" } " vocabulary because it does not perform bounds checks." } ;
-
-{ nth-pair set-nth-pair } related-words
-
 HELP: set-nth-pair
 { $values { "value" "the second element of the pair" } { "key" "the first element of the pair" } { "seq" "a sequence" } { "n" "an index in the sequence" } }
 { $description "Stores a pair of values into the elements with index " { $snippet "n" } " and " { $snippet "n+1" } ", respectively." }
 { $warning "This word is in the " { $vocab-link "hashtables.private" } " vocabulary because it does not perform bounds checks." }
 { $side-effects "seq" } ;
 
-HELP: find-pair
-{ $values { "array" "an array of pairs" } { "quot" "a quotation with stack effect " { $snippet "( key value -- ? )" } } { "key" "the successful key" } { "value" "the successful value" } { "?" "a boolean of whether there was success" } }
-{ $description "Applies a quotation to successive pairs in the array, yielding the first successful pair." }
-{ $warning "This word is in the " { $vocab-link "hashtables.private" } " vocabulary because passing an array of odd length can lead to memory corruption." } ;
-
 HELP: reset-hash
 { $values { "n" "a positive integer specifying hashtable capacity" } { "hash" hashtable } }
 { $description "Resets the underlying array of the hashtable to a new array with the given capacity. Removes all entries from the hashtable." }
@@ -107,11 +93,6 @@ HELP: hash-deleted+
 { $description "Called to increment the deleted entry counter when an entry is removed with " { $link delete-at } }
 { $side-effects "hash" } ;
 
-HELP: (set-hash)
-{ $values { "value" "a value" } { "key" "a key to add" } { "hash" hashtable } { "new?" "a boolean" } }
-{ $description "Stores the key/value pair into the hashtable. This word does not grow the hashtable if it exceeds capacity, therefore a hang can result. User code should use " { $link set-at } " instead, which grows the hashtable if necessary." }
-{ $side-effects "hash" } ;
-
 HELP: grow-hash
 { $values { "hash" hashtable } }
 { $description "Enlarges the capacity of a hashtable. User code does not need to call this word directly." }
diff --git a/core/hashtables/hashtables-tests.factor b/core/hashtables/hashtables-tests.factor
index 4e80ed1f6e..abf3747244 100755
--- a/core/hashtables/hashtables-tests.factor
+++ b/core/hashtables/hashtables-tests.factor
@@ -28,7 +28,6 @@ unit-test
 
 [ t ] [ 12 hashcode 12 hashcode = ] unit-test
 [ t ] [ 12 >bignum hashcode 12 hashcode = ] unit-test
-[ t ] [ 12.0 hashcode 12 >bignum hashcode = ] unit-test
 
 ! Test various odd keys to see if they work.
 
@@ -164,3 +163,16 @@ H{ } "x" set
 [ { "one" "two" 3 } ] [
     { 1 2 3 } H{ { 1 "one" } { 2 "two" } } substitute
 ] unit-test
+
+! We want this to work
+[ ] [ hashtable new "h" set ] unit-test
+
+[ 0 ] [ "h" get assoc-size ] unit-test
+
+[ f f ] [ "goo" "h" get at* ] unit-test
+
+[ ] [ 1 2 "h" get set-at ] unit-test
+
+[ 1 ] [ "h" get assoc-size ] unit-test
+
+[ 1 ] [ 2 "h" get at ] unit-test
diff --git a/core/hashtables/hashtables.factor b/core/hashtables/hashtables.factor
index ea2f67255c..32fda7d2fb 100755
--- a/core/hashtables/hashtables.factor
+++ b/core/hashtables/hashtables.factor
@@ -1,13 +1,18 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel kernel.private slots.private math assocs
-       math.private sequences sequences.private vectors ;
+USING: accessors arrays kernel kernel.private slots.private math
+assocs math.private sequences sequences.private vectors grouping ;
 IN: hashtables
 
+TUPLE: hashtable
+{ count array-capacity }
+{ deleted array-capacity }
+{ array array } ;
+
 <PRIVATE
 
 : wrap ( i array -- n )
-    array-capacity 1 fixnum-fast fixnum-bitand ; inline
+    length>> 1 fixnum-fast fixnum-bitand ; inline
 
 : hash@ ( key array -- i )
     >r hashcode >fixnum dup fixnum+fast r> wrap ; inline
@@ -15,24 +20,27 @@ IN: hashtables
 : probe ( array i -- array i )
     2 fixnum+fast over wrap ; inline
 
-: (key@) ( key keys i -- array n ? )
+: no-key ( key array -- array n ? ) nip f f ; inline
+
+: (key@) ( key array i -- array n ? )
     3dup swap array-nth
     dup ((empty)) eq?
-    [ 3drop nip f f ] [
+    [ 3drop no-key ] [
         = [ rot drop t ] [ probe (key@) ] if
-    ] if ; inline
+    ] if ; inline recursive
 
 : key@ ( key hash -- array n ? )
-    hash-array 2dup hash@ (key@) ; inline
+    array>> dup length>> 0 eq?
+    [ no-key ] [ 2dup hash@ (key@) ] if ; inline
 
 : <hash-array> ( n -- array )
     1+ next-power-of-2 4 * ((empty)) <array> ; inline
 
 : init-hash ( hash -- )
-    0 over set-hash-count 0 swap set-hash-deleted ;
+    0 >>count 0 >>deleted drop ; inline
 
 : reset-hash ( n hash -- )
-    swap <hash-array> over set-hash-array init-hash ;
+    swap <hash-array> >>array init-hash ;
 
 : (new-key@) ( key keys i -- keys n empty? )
     3dup swap array-nth dup ((empty)) eq? [
@@ -43,64 +51,35 @@ IN: hashtables
         ] [
             probe (new-key@)
         ] if
-    ] if ; inline
+    ] if ; inline recursive
 
 : new-key@ ( key hash -- array n empty? )
-    hash-array 2dup hash@ (new-key@) ; inline
-
-: nth-pair ( n seq -- key value )
-    swap 2 fixnum+fast 2dup slot -rot 1 fixnum+fast slot ;
-    inline
+    array>> 2dup hash@ (new-key@) ; inline
 
 : set-nth-pair ( value key seq n -- )
     2 fixnum+fast [ set-slot ] 2keep
     1 fixnum+fast set-slot ; inline
 
 : hash-count+ ( hash -- )
-    dup hash-count 1+ swap set-hash-count ; inline
+    [ 1+ ] change-count drop ; inline
 
 : hash-deleted+ ( hash -- )
-    dup hash-deleted 1+ swap set-hash-deleted ; inline
+    [ 1+ ] change-deleted drop ; inline
 
-: (set-hash) ( value key hash -- new? )
-    2dup new-key@
-    [ rot hash-count+ set-nth-pair t ]
-    [ rot drop set-nth-pair f ] if ; inline
-
-: find-pair-next >r 2 fixnum+fast r> ; inline
-
-: (find-pair) ( quot i array -- key value ? )
-    2dup array-capacity eq? [
-        3drop f f f
-    ] [
-        2dup array-nth tombstone? [
-            find-pair-next (find-pair)
-        ] [
-            [ nth-pair rot call ] 3keep roll [
-                nth-pair >r nip r> t
-            ] [
-                find-pair-next (find-pair)
-            ] if
-        ] if
-    ] if ; inline
-
-: find-pair ( array quot -- key value ? )
-    0 rot (find-pair) ; inline
-
-: (rehash) ( hash array -- )
-    [ swap pick (set-hash) drop f ] find-pair 2drop 2drop ;
+: (rehash) ( hash alist -- )
+    swap [ swapd set-at ] curry assoc-each ; inline
 
 : hash-large? ( hash -- ? )
-    [ hash-count 3 fixnum*fast  ]
-    [ hash-array array-capacity ] bi > ;
+    [ count>> 3 fixnum*fast 1 fixnum+fast ]
+    [ array>> length>> ] bi fixnum> ; inline
 
 : hash-stale? ( hash -- ? )
-    [ hash-deleted 10 fixnum*fast ] [ hash-count ] bi fixnum> ;
+    [ deleted>> 10 fixnum*fast ] [ count>> ] bi fixnum> ; inline
 
 : grow-hash ( hash -- )
-    [ dup hash-array swap assoc-size 1+ ] keep
+    [ dup >alist swap assoc-size 1+ ] keep
     [ reset-hash ] keep
-    swap (rehash) ;
+    swap (rehash) ; inline
 
 : ?grow-hash ( hash -- )
     dup hash-large? [
@@ -122,7 +101,7 @@ M: hashtable at* ( key hash -- value ? )
     key@ [ 3 fixnum+fast slot t ] [ 2drop f f ] if ;
 
 M: hashtable clear-assoc ( hash -- )
-    dup init-hash hash-array [ drop ((empty)) ] change-each ;
+    [ init-hash ] [ array>> [ drop ((empty)) ] change-each ] bi ;
 
 M: hashtable delete-at ( key hash -- )
     tuck key@ [
@@ -133,26 +112,27 @@ M: hashtable delete-at ( key hash -- )
     ] if ;
 
 M: hashtable assoc-size ( hash -- n )
-    dup hash-count swap hash-deleted - ;
+    [ count>> ] [ deleted>> ] bi - ;
 
 : rehash ( hash -- )
-    dup hash-array
-    dup length ((empty)) <array> pick set-hash-array
-    0 pick set-hash-count
-    0 pick set-hash-deleted
-    (rehash) ;
+    dup >alist >r
+    dup clear-assoc
+    r> (rehash) ;
 
 M: hashtable set-at ( value key hash -- )
-    dup >r (set-hash) [ r> ?grow-hash ] [ r> drop ] if ;
+    dup ?grow-hash
+    2dup new-key@
+    [ rot hash-count+ set-nth-pair ]
+    [ rot drop set-nth-pair ] if ;
 
 : associate ( value key -- hash )
     2 <hashtable> [ set-at ] keep ;
 
-M: hashtable assoc-find ( hash quot -- key value ? )
-    >r hash-array r> find-pair ;
+M: hashtable >alist
+    array>> 2 <groups> [ first tombstone? not ] filter ;
 
 M: hashtable clone
-    (clone) dup hash-array clone over set-hash-array ;
+    (clone) [ clone ] change-array ;
 
 M: hashtable equal?
     over hashtable? [
diff --git a/core/inference/backend/backend-docs.factor b/core/inference/backend/backend-docs.factor
deleted file mode 100755
index 91314d1312..0000000000
--- a/core/inference/backend/backend-docs.factor
+++ /dev/null
@@ -1,72 +0,0 @@
-USING: help.syntax help.markup words effects inference.dataflow
-inference.state kernel sequences
-kernel.private combinators sequences.private ;
-IN: inference.backend
-
-HELP: literal-expected
-{ $error-description "Thrown when inference encounters a " { $link call } " or " { $link if } " being applied to a value which is not known to be a literal. Such a form can have an arbitrary stack effect, and does not compile." }
-{ $notes "This error will be thrown when compiling any combinator, such as " { $link each } ". However, words calling combinators can compile if the combinator is declared " { $link POSTPONE: inline } " and the quotation being passed in is a literal." } ;
-
-HELP: too-many->r
-{ $error-description "Thrown if inference notices a quotation pushing elements on the retain stack without popping them at the end." }
-{ $notes "See " { $link "shuffle-words" } " for retain stack usage conventions." } ;
-
-HELP: too-many-r>
-{ $error-description "Thrown if inference notices a quotation popping elements from the return stack it did not place there." }
-{ $notes "See " { $link "shuffle-words" } " for retain stack usage conventions." } ;
-
-HELP: unify-lengths
-{ $values { "seq" sequence } { "newseq" "a new sequence" } }
-{ $description "Pads sequences in " { $snippet "seq" } " with computed value placeholders to ensure they are all the same length." } ;
-
-HELP: cannot-unify-specials
-{ $description "Throws an " { $link cannot-unify-specials } "." }
-{ $error-description "Thrown when some but not all branches in a conditional output " { $link curry } " or " { $link compose } " values. This case is not supported by stack effect inference yet. It does not indicate there is a programming error." } ;
-
-HELP: unify-values
-{ $values { "seq" sequence } { "value" "an object" } }
-{ $description "If all values in the sequence are equal, outputs the value, otherwise outputs a computed value placeholder." } ;
-
-HELP: unbalanced-branches-error
-{ $values { "in" "a sequence of integers" } { "out" "a sequence of integers" } }
-{ $description "Throws an " { $link unbalanced-branches-error } "." }
-{ $error-description "Thrown when inference encounters an " { $link if } ", " { $link dispatch } " or " { $link cond } " where the branches do not all exit with the same stack height." }
-{ $notes "Conditionals with variable stack effects are considered to be bad style and should be avoided since they do not compile."
-$nl
-"If this error comes up when inferring the stack effect of a recursive word, check the word's stack effect declaration; it might be wrong." } ;
-
-HELP: unify-effect
-{ $values { "quots" "a sequence of quotations" } { "in" "a sequence of integers" } { "out" "a sequence of stacks" } { "newin" "a sequence of integers" } { "newout" "a sequence of stacks" } }
-{ $description "Unifies the stack effects of a number of branches, and outputs new values for " { $link d-in } " and " { $link meta-d } "." } ;
-
-HELP: consume/produce
-{ $values { "node" "a dataflow node" } { "effect" "an instance of " { $link effect } } }
-{ $description "Adds a node to the dataflow graph that calls " { $snippet "word" } " with a stack effect of " { $snippet "effect" } "." } ;
-
-HELP: no-effect
-{ $values { "word" word } }
-{ $description "Throws a " { $link no-effect } " error." }
-{ $error-description "Thrown when inference encounters a call to a word which is already known not to have a static stack effect, due to a prior inference attempt failing." } ;
-
-HELP: inline-word
-{ $values { "word" word } }
-{ $description "Called during inference to infer stack effects of inline words."
-$nl
-"If the inline word is recursive, a new " { $link #label } " node is added to the dataflow graph, and the word has to be inferred twice, to determine which literals survive the recursion (eg, quotations) and which don't (loop indices, etc)."
-$nl
-"If the inline word is not recursive, the resulting nodes are spliced into the dataflow graph, and no " { $link #label } " node is created." } ;
-
-HELP: effect-error
-{ $values { "word" word } { "effect" "an instance of " { $link effect } } }
-{ $description "Throws an " { $link effect-error } "." }
-{ $error-description "Thrown when a word's inferred stack effect does not match its declared stack effect." } ;
-
-HELP: recursive-declare-error
-{ $error-description "Thrown when inference encounters a recursive call to a word lacking a stack effect declaration. Recursive words must declare a stack effect in order to compile. Due to implementation detail, generic words are recursive, and thus the same restriction applies." } ;
-
-HELP: recursive-quotation-error
-{ $error-description "Thrown when a quotation calls itself, directly or indirectly, within the same word. Stack effect inference becomes equivalent to the halting problem if quotation recursion has to be taken into account, hence it is not permitted." }
-{ $examples
-    "Here is an example of quotation recursion:"
-    { $code "[ [ dup call ] dup call ] infer." }
-} ;
diff --git a/core/inference/backend/backend.factor b/core/inference/backend/backend.factor
deleted file mode 100755
index c49e7fda8a..0000000000
--- a/core/inference/backend/backend.factor
+++ /dev/null
@@ -1,500 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: inference.dataflow inference.state arrays generic io
-io.streams.string kernel math namespaces parser prettyprint
-sequences strings vectors words quotations effects classes
-continuations debugger assocs combinators compiler.errors
-generic.standard.engines.tuple accessors math.order ;
-IN: inference.backend
-
-: recursive-label ( word -- label/f )
-    recursive-state get at ;
-
-GENERIC: inline? ( word -- ? )
-
-M: method-body inline?
-    "method-generic" word-prop inline? ;
-
-M: engine-word inline?
-    "tuple-dispatch-generic" word-prop inline? ;
-
-M: word inline?
-    "inline" word-prop ;
-
-: local-recursive-state ( -- assoc )
-    recursive-state get dup keys
-    [ dup word? [ inline? ] when not ] find drop
-    [ head-slice ] when* ;
-
-: inline-recursive-label ( word -- label/f )
-    local-recursive-state at ;
-
-: recursive-quotation? ( quot -- ? )
-    local-recursive-state [ first eq? ] with contains? ;
-
-TUPLE: inference-error error type rstate ;
-
-M: inference-error compiler-error-type type>> ;
-
-M: inference-error error-help error>> error-help ;
-
-: (inference-error) ( ... class type -- * )
-    >r boa r>
-    recursive-state get
-    \ inference-error boa throw ; inline
-
-: inference-error ( ... class -- * )
-    +error+ (inference-error) ; inline
-
-: inference-warning ( ... class -- * )
-    +warning+ (inference-error) ; inline
-
-TUPLE: literal-expected ;
-
-M: object value-literal \ literal-expected inference-warning ;
-
-: pop-literal ( -- rstate obj )
-    1 #drop node,
-    pop-d dup value-literal >r value-recursion r> ;
-
-: value-vector ( n -- vector ) [ drop <computed> ] V{ } map-as ;
-
-: add-inputs ( seq stack -- n stack )
-    tuck [ length ] bi@ - dup 0 >
-    [ dup value-vector [ swapd push-all ] keep ]
-    [ drop 0 swap ] if ;
-
-: ensure-values ( seq -- )
-    meta-d [ add-inputs ] change d-in [ + ] change ;
-
-: current-effect ( -- effect )
-    d-in get meta-d get length <effect>
-    terminated? get over set-effect-terminated? ;
-
-: init-inference ( -- )
-    terminated? off
-    V{ } clone meta-d set
-    V{ } clone meta-r set
-    0 d-in set
-    dataflow-graph off
-    current-node off ;
-
-GENERIC: apply-object ( obj -- )
-
-: apply-literal ( obj -- )
-    <value> push-d #push 1 0 pick node-outputs node, ;
-
-M: object apply-object apply-literal ;
-
-M: wrapper apply-object
-    wrapped dup +called+ depends-on apply-literal ;
-
-: terminate ( -- )
-    terminated? on #terminate node, ;
-
-: infer-quot ( quot rstate -- )
-    recursive-state get >r
-    recursive-state set
-    [ apply-object terminated? get not ] all? drop
-    r> recursive-state set ;
-
-: infer-quot-recursive ( quot word label -- )
-    recursive-state get -rot 2array prefix infer-quot ;
-
-: time-bomb ( error -- )
-    [ throw ] curry recursive-state get infer-quot ;
-
-: bad-call ( -- )
-    "call must be given a callable" time-bomb ;
-
-TUPLE: recursive-quotation-error quot ;
-
-: infer-quot-value ( value -- )
-    dup recursive-quotation? [
-        value-literal recursive-quotation-error inference-error
-    ] [
-        dup value-literal callable? [
-            dup value-literal
-            over value-recursion
-            rot f 2array prefix infer-quot
-        ] [
-            drop bad-call
-        ] if
-    ] if ;
-
-TUPLE: too-many->r ;
-
-: check->r ( -- )
-    meta-r get empty? terminated? get or
-    [ \ too-many->r inference-error ] unless ;
-
-TUPLE: too-many-r> ;
-
-: check-r> ( n -- )
-    meta-r get length >
-    [ \ too-many-r> inference-error ] when ;
-
-: infer->r ( n -- )
-    dup ensure-values
-    #>r
-    over 0 pick node-inputs
-    over [ drop pop-d ] map reverse [ push-r ] each
-    0 pick pick node-outputs
-    node,
-    drop ;
-
-: infer-r> ( n -- )
-    dup check-r>
-    #r>
-    0 pick pick node-inputs
-    over [ drop pop-r ] map reverse [ push-d ] each
-    over 0 pick node-outputs
-    node,
-    drop ;
-
-: undo-infer ( -- )
-    recorded get [ f "inferred-effect" set-word-prop ] each ;
-
-: (consume-values) ( n -- )
-    meta-d get [ length swap - ] keep set-length ;
-
-: consume-values ( seq node -- )
-    >r length r>
-    over ensure-values
-    over 0 rot node-inputs
-    (consume-values) ;
-
-: produce-values ( seq node -- )
-    >r value-vector dup r> set-node-out-d
-    meta-d get push-all ;
-
-: if-inline ( word true false -- )
-    >r >r dup inline? r> r> if ; inline
-
-: consume/produce ( effect node -- )
-    over effect-in over consume-values
-    over effect-out over produce-values
-    node,
-    effect-terminated? [ terminate ] when ;
-
-GENERIC: constructor ( value -- word/f )
-
-GENERIC: infer-uncurry ( value -- )
-
-M: curried infer-uncurry
-    drop pop-d dup curried-obj push-d curried-quot push-d ;
-
-M: curried constructor
-    drop \ curry ;
-
-M: composed infer-uncurry
-    drop pop-d dup composed-quot1 push-d composed-quot2 push-d ;
-
-M: composed constructor
-    drop \ compose ;
-
-M: object infer-uncurry drop ;
-
-M: object constructor drop f ;
-
-: reify-curry ( value -- )
-    dup infer-uncurry
-    constructor [
-        peek-d reify-curry
-        1 infer->r
-        peek-d reify-curry
-        1 infer-r>
-        2 1 <effect> swap #call consume/produce
-    ] when* ;
-
-: reify-curries ( n -- )
-    meta-d get reverse [
-        dup special? [
-            over infer->r
-            dup reify-curry
-            over infer-r>
-        ] when 2drop
-    ] 2each ;
-
-: reify-all ( -- )
-    meta-d get length reify-curries ;
-
-: end-infer ( -- )
-    check->r
-    reify-all
-    f #return node, ;
-
-: unify-lengths ( seq -- newseq )
-    dup empty? [
-        dup [ length ] map supremum
-        [ swap add-inputs nip ] curry map
-    ] unless ;
-
-DEFER: unify-values
-
-: unify-curries ( seq -- value )
-    dup [ curried-obj ] map unify-values
-    swap [ curried-quot ] map unify-values
-    <curried> ;
-
-: unify-composed ( seq -- value )
-    dup [ composed-quot1 ] map unify-values
-    swap [ composed-quot2 ] map unify-values
-    <composed> ;
-
-TUPLE: cannot-unify-specials ;
-
-: cannot-unify-specials ( -- * )
-    \ cannot-unify-specials inference-warning ;
-
-: unify-values ( seq -- value )
-    {
-        { [ dup all-eq? ] [ first ] }
-        { [ dup [ curried? ] all? ] [ unify-curries ] }
-        { [ dup [ composed? ] all? ] [ unify-composed ] }
-        { [ dup [ special? ] contains? ] [ cannot-unify-specials ] }
-        [ drop <computed> ]
-    } cond ;
-
-: unify-stacks ( seq -- stack )
-    flip [ unify-values ] V{ } map-as ;
-
-: balanced? ( in out -- ? )
-    [ dup [ length - ] [ 2drop f ] if ] 2map
-    sift all-equal? ;
-
-TUPLE: unbalanced-branches-error quots in out ;
-
-: unbalanced-branches-error ( quots in out -- * )
-    \ unbalanced-branches-error inference-error ;
-
-: unify-inputs ( max-d-in d-in meta-d -- meta-d )
-    dup [
-        [ >r - r> length + ] keep add-inputs nip
-    ] [
-        2nip
-    ] if ;
-
-: unify-effect ( quots in out -- newin newout )
-    #! in is a sequence of integers, out is a sequence of
-    #! stacks.
-    2dup balanced? [
-        over supremum -rot
-        [ >r dupd r> unify-inputs ] 2map
-        sift unify-stacks
-        rot drop
-    ] [
-        unbalanced-branches-error
-    ] if ;
-
-: active-variable ( seq symbol -- seq )
-    [
-        swap terminated? over at [ 2drop f ] [ at ] if
-    ] curry map ;
-
-: branch-variable ( seq symbol -- seq )
-    [ swap at ] curry map ;
-
-: datastack-effect ( seq -- )
-    dup quotation branch-variable
-    over d-in branch-variable
-    rot meta-d active-variable
-    unify-effect meta-d set d-in set ;
-
-: retainstack-effect ( seq -- )
-    dup quotation branch-variable
-    over length 0 <repetition>
-    rot meta-r active-variable
-    unify-effect meta-r set drop ;
-
-: unify-effects ( seq -- )
-    dup datastack-effect
-    dup retainstack-effect
-    [ terminated? swap at ] all? terminated? set ;
-
-: unify-dataflow ( effects -- nodes )
-    dataflow-graph branch-variable ;
-
-: copy-inference ( -- )
-    meta-d [ clone ] change
-    meta-r [ clone ] change
-    d-in [ ] change
-    dataflow-graph off
-    current-node off ;
-
-: infer-branch ( last value -- namespace )
-    [
-        copy-inference
-        dup value-literal quotation set
-        infer-quot-value
-        terminated? get [ drop ] [ call node, ] if
-    ] H{ } make-assoc ; inline
-
-: (infer-branches) ( last branches -- list )
-    [ infer-branch ] with map
-    dup unify-effects unify-dataflow ; inline
-
-: infer-branches ( last branches node -- )
-    #! last is a quotation which provides a #return or a #values
-    1 reify-curries
-    call dup node,
-    pop-d drop
-    >r (infer-branches) r> set-node-children
-    #merge node, ; inline
-
-: make-call-node ( word effect -- )
-    swap dup inline?
-    over dup recursive-label eq? not and [
-        meta-d get clone -rot
-        recursive-label #call-label [ consume/produce ] keep
-        set-node-in-d
-    ] [
-        over effect-in length reify-curries
-        #call consume/produce
-    ] if ;
-
-TUPLE: no-effect word ;
-
-: no-effect ( word -- * ) \ no-effect inference-warning ;
-
-TUPLE: effect-error word effect ;
-
-: effect-error ( word effect -- * )
-    \ effect-error inference-error ;
-
-: check-effect ( word effect -- )
-    dup pick stack-effect effect<=
-    [ 2drop ] [ effect-error ] if ;
-
-: finish-word ( word -- )
-    current-effect
-    2dup check-effect
-    over recorded get push
-    "inferred-effect" set-word-prop ;
-
-: infer-word ( word -- effect )
-    [
-        [
-            init-inference
-            dependencies off
-            dup word-def over dup infer-quot-recursive
-            end-infer
-            finish-word
-            current-effect
-        ] with-scope
-    ] [ ] [ t "no-effect" set-word-prop ] cleanup ;
-
-: custom-infer ( word -- )
-    #! Customized inference behavior
-    dup +inlined+ depends-on
-    "infer" word-prop call ;
-
-: cached-infer ( word -- )
-    dup "inferred-effect" word-prop make-call-node ;
-
-: apply-word ( word -- )
-    {
-        { [ dup "infer" word-prop ] [ custom-infer ] }
-        { [ dup "no-effect" word-prop ] [ no-effect ] }
-        { [ dup "inferred-effect" word-prop ] [ cached-infer ] }
-        [ dup infer-word make-call-node ]
-    } cond ;
-
-TUPLE: recursive-declare-error word ;
-
-: declared-infer ( word -- )
-    dup stack-effect [
-        make-call-node
-    ] [
-        \ recursive-declare-error inference-error
-    ] if* ;
-
-GENERIC: collect-label-info* ( label node -- )
-
-M: node collect-label-info* 2drop ;
-
-: (collect-label-info) ( label node vector -- )
-    >r tuck [ param>> ] bi@ eq? r> [ push ] curry [ drop ] if ;
-    inline
-
-M: #call-label collect-label-info*
-    over calls>> (collect-label-info) ;
-
-M: #return collect-label-info*
-    over returns>> (collect-label-info) ;
-
-: collect-label-info ( #label -- )
-    V{ } clone >>calls
-    V{ } clone >>returns
-    dup [ collect-label-info* ] with each-node ;
-
-: nest-node ( -- ) #entry node, ;
-
-: unnest-node ( new-node -- new-node )
-    dup node-param #return node,
-    dataflow-graph get 1array over set-node-children ;
-
-: inlined-block? "inlined-block" word-prop ;
-
-: <inlined-block> gensym dup t "inlined-block" set-word-prop ;
-
-: inline-block ( word -- #label data )
-    [
-        copy-inference nest-node
-        dup word-def swap <inlined-block>
-        [ infer-quot-recursive ] 2keep
-        #label unnest-node
-        dup collect-label-info
-    ] H{ } make-assoc ;
-
-: join-values ( #label -- )
-    calls>> [ node-in-d ] map meta-d get suffix
-    unify-lengths unify-stacks
-    meta-d [ length tail* ] change ;
-
-: splice-node ( node -- )
-    dup node-successor [
-        dup node, penultimate-node f over set-node-successor
-        dup current-node set
-    ] when drop ;
-
-: apply-infer ( hash -- )
-    { meta-d meta-r d-in terminated? }
-    [ swap [ at ] curry map ] keep
-    [ set ] 2each ;
-
-: inline-word ( word -- )
-    dup inline-block over recursive-label? [
-        flatten-meta-d >r
-        drop join-values inline-block apply-infer
-        r> over set-node-in-d
-        dup node,
-        calls>> [
-            [ flatten-curries ] modify-values
-        ] each
-    ] [
-        apply-infer node-child node-successor splice-node drop
-    ] if ;
-
-M: word apply-object
-    [
-        dup +inlined+ depends-on
-        dup inline-recursive-label
-        [ declared-infer ] [ inline-word ] if
-    ] [
-        dup +called+ depends-on
-        dup recursive-label
-        [ declared-infer ] [ apply-word ] if
-    ] if-inline ;
-
-: with-infer ( quot -- effect dataflow )
-    [
-        [
-            V{ } clone recorded set
-            init-inference
-            call
-            end-infer
-            current-effect
-            dataflow-graph get
-        ] [ ] [ undo-infer ] cleanup
-    ] with-scope ;
diff --git a/core/inference/class/class.factor b/core/inference/class/class.factor
deleted file mode 100755
index dc632425fe..0000000000
--- a/core/inference/class/class.factor
+++ /dev/null
@@ -1,371 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic assocs hashtables inference kernel
-math namespaces sequences words parser math.intervals
-effects classes classes.algebra inference.dataflow
-inference.backend combinators accessors ;
-IN: inference.class
-
-! Class inference
-
-! A constraint is a statement about a value.
-
-! We need a notion of equality which doesn't recurse so cannot
-! infinite loop on circular data
-GENERIC: eql? ( obj1 obj2 -- ? )
-M: object eql? eq? ;
-M: number eql? number= ;
-
-! Maps constraints to constraints
-SYMBOL: constraints
-
-TUPLE: literal-constraint literal value ;
-
-C: <literal-constraint> literal-constraint
-
-M: literal-constraint equal?
-    over literal-constraint? [
-        [ [ literal>> ] bi@ eql? ]
-        [ [ value>>   ] bi@ =    ]
-        2bi and
-    ] [ 2drop f ] if ;
-
-TUPLE: class-constraint class value ;
-
-C: <class-constraint> class-constraint
-
-TUPLE: interval-constraint interval value ;
-
-C: <interval-constraint> interval-constraint
-
-GENERIC: apply-constraint ( constraint -- )
-GENERIC: constraint-satisfied? ( constraint -- ? )
-
-: `input node get in-d>> nth ;
-: `output node get out-d>> nth ;
-: class, <class-constraint> , ;
-: literal, <literal-constraint> , ;
-: interval, <interval-constraint> , ;
-
-M: f apply-constraint drop ;
-
-: make-constraints ( node quot -- constraint )
-    [ swap node set call ] { } make ; inline
-
-: set-constraints ( node quot -- )
-    make-constraints
-    unclip [ 2array ] reduce
-    apply-constraint ; inline
-
-: assume ( constraint -- )
-    constraints get at [ apply-constraint ] when* ;
-
-! Variables used by the class inferencer
-
-! Current value --> literal mapping
-SYMBOL: value-literals
-
-! Current value --> interval mapping
-SYMBOL: value-intervals
-
-! Current value --> class mapping
-SYMBOL: value-classes
-
-: value-interval* ( value -- interval/f )
-    value-intervals get at ;
-
-: set-value-interval* ( interval value -- )
-    value-intervals get set-at ;
-
-: intersect-value-interval ( interval value -- )
-    [ value-interval* interval-intersect ] keep
-    set-value-interval* ;
-
-M: interval-constraint apply-constraint
-    [ interval>> ] [ value>> ] bi intersect-value-interval ;
-
-: set-class-interval ( class value -- )
-    over class? [
-        >r "interval" word-prop r> over
-        [ set-value-interval* ] [ 2drop ] if
-    ] [ 2drop ] if ;
-
-: value-class* ( value -- class )
-    value-classes get at object or ;
-
-: set-value-class* ( class value -- )
-    over [
-        dup value-intervals get at [
-            2dup set-class-interval
-        ] unless
-        2dup <class-constraint> assume
-    ] when
-    value-classes get set-at ;
-
-: intersect-value-class ( class value -- )
-    [ value-class* class-and ] keep set-value-class* ;
-
-M: class-constraint apply-constraint
-    [ class>> ] [ value>> ] bi intersect-value-class ;
-
-: literal-interval ( value -- interval/f )
-    dup real? [ [a,a] ] [ drop f ] if ;
-
-: set-value-literal* ( literal value -- )
-    {
-        [ >r class r> set-value-class* ]
-        [ >r literal-interval r> set-value-interval* ]
-        [ <literal-constraint> assume ]
-        [ value-literals get set-at ]
-    } 2cleave ;
-
-M: literal-constraint apply-constraint
-    [ literal>> ] [ value>> ] bi set-value-literal* ;
-
-! For conditionals, an assoc of child node # --> constraint
-GENERIC: child-constraints ( node -- seq )
-
-GENERIC: infer-classes-before ( node -- )
-
-GENERIC: infer-classes-around ( node -- )
-
-M: node infer-classes-before drop ;
-
-M: node child-constraints
-    children>> length
-    dup zero? [ drop f ] [ f <repetition> ] if ;
-
-: value-literal* ( value -- obj ? )
-    value-literals get at* ;
-
-M: literal-constraint constraint-satisfied?
-    dup value>> value-literal*
-    [ swap literal>> eql? ] [ 2drop f ] if ;
-
-M: class-constraint constraint-satisfied?
-    [ value>> value-class* ] [ class>> ] bi class<= ;
-
-M: pair apply-constraint
-    first2 2dup constraints get set-at
-    constraint-satisfied? [ apply-constraint ] [ drop ] if ;
-
-M: pair constraint-satisfied?
-    first constraint-satisfied? ;
-
-: valid-keys ( seq assoc -- newassoc )
-    extract-keys [ nip ] assoc-filter f assoc-like ;
-
-: annotate-node ( node -- )
-    #! Annotate the node with the currently-inferred set of
-    #! value classes.
-    dup node-values {
-        [ value-intervals get valid-keys >>intervals ]
-        [ value-classes   get valid-keys >>classes   ]
-        [ value-literals  get valid-keys >>literals  ]
-        [ 2drop ]
-    } cleave ;
-
-: intersect-classes ( classes values -- )
-    [ intersect-value-class ] 2each ;
-
-: intersect-intervals ( intervals values -- )
-    [ intersect-value-interval ] 2each ;
-
-: predicate-constraints ( class #call -- )
-    [
-        ! If word outputs true, input is an instance of class
-        [
-            0 `input class,
-            \ f class-not 0 `output class,
-        ] set-constraints
-    ] [
-        ! If word outputs false, input is not an instance of class
-        [
-            class-not 0 `input class,
-            \ f 0 `output class,
-        ] set-constraints
-    ] 2bi ;
-
-: compute-constraints ( #call -- )
-    dup param>> "constraints" word-prop [
-        call
-    ] [
-        dup param>> "predicating" word-prop dup
-        [ swap predicate-constraints ] [ 2drop ] if
-    ] if* ;
-
-: compute-output-classes ( node word -- classes intervals )
-    dup param>> "output-classes" word-prop
-    dup [ call ] [ 2drop f f ] if ;
-
-: output-classes ( node -- classes intervals )
-    dup compute-output-classes >r
-    [ ] [ param>> "default-output-classes" word-prop ] ?if
-    r> ;
-
-M: #call infer-classes-before
-    [ compute-constraints ] keep
-    [ output-classes ] [ out-d>> ] bi
-    tuck [ intersect-classes ] [ intersect-intervals ] 2bi* ;
-
-M: #push infer-classes-before
-    out-d>> [ [ value-literal ] keep set-value-literal* ] each ;
-
-M: #if child-constraints
-    [
-        \ f class-not 0 `input class,
-        f 0 `input literal,
-    ] make-constraints ;
-
-M: #dispatch child-constraints
-    dup [
-        children>> length [ 0 `input literal, ] each
-    ] make-constraints ;
-
-M: #declare infer-classes-before
-    [ param>> ] [ in-d>> ] bi
-    [ intersect-value-class ] 2each ;
-
-DEFER: (infer-classes)
-
-: infer-children ( node -- )
-    [ children>> ] [ child-constraints ] bi [
-        [
-            value-classes [ clone ] change
-            value-literals [ clone ] change
-            value-intervals [ clone ] change
-            constraints [ clone ] change
-            apply-constraint
-            (infer-classes)
-        ] with-scope
-    ] 2each ;
-
-: pad-all ( seqs elt -- seq )
-    >r dup [ length ] map supremum r> [ pad-left ] 2curry map ;
-
-: (merge-classes) ( nodes -- seq )
-    dup length 1 = [
-        first node-input-classes
-    ] [
-        [ node-input-classes ] map null pad-all flip
-        [ null [ class-or ] reduce ] map
-    ] if ;
-
-: set-classes ( seq node -- )
-    out-d>> [ set-value-class* ] 2reverse-each ;
-
-: merge-classes ( nodes node -- )
-    >r (merge-classes) r> set-classes ;
-
-: set-intervals ( seq node -- )
-    out-d>> [ set-value-interval* ] 2reverse-each ;
-
-: merge-intervals ( nodes node -- )
-    >r
-    [ node-input-intervals ] map f pad-all flip
-    [ dup first [ interval-union ] reduce ] map
-    r> set-intervals ;
-
-: annotate-merge ( nodes #merge/#entry -- )
-    [ merge-classes ] [ merge-intervals ] 2bi ;
-
-: merge-children ( node -- )
-    dup node-successor dup #merge? [
-        swap active-children dup empty?
-        [ 2drop ] [ swap annotate-merge ] if
-    ] [ 2drop ] if ;
-
-: classes= ( inferred current -- ? )
-    2dup min-length [ tail* ] curry bi@ sequence= ;
-
-SYMBOL: fixed-point?
-
-SYMBOL: nested-labels
-
-: annotate-entry ( nodes #label -- )
-    >r (merge-classes) r> node-child
-    2dup node-output-classes classes=
-    [ 2drop ] [ set-classes fixed-point? off ] if ;
-
-: init-recursive-calls ( #label -- )
-    #! We set recursive calls to output the empty type, then
-    #! repeat inference until a fixed point is reached.
-    #! Hopefully, our type functions are monotonic so this
-    #! will always converge.
-    returns>> [ dup in-d>> [ null ] { } map>assoc >>classes drop ] each ;
-
-M: #label infer-classes-before ( #label -- )
-    [ init-recursive-calls ]
-    [ [ 1array ] keep annotate-entry ] bi ;
-
-: infer-label-loop ( #label -- )
-    fixed-point? on
-    dup node-child (infer-classes)
-    dup [ calls>> ] [ suffix ] [ annotate-entry ] tri
-    fixed-point? get [ drop ] [ infer-label-loop ] if ;
-
-M: #label infer-classes-around ( #label -- )
-    #! Now merge the types at every recursion point with the
-    #! entry types.
-    [
-        {
-            [ nested-labels get push ]
-            [ annotate-node ]
-            [ infer-classes-before ]
-            [ infer-label-loop ]
-            [ drop nested-labels get pop* ]
-        } cleave
-    ] with-scope ;
-
-: find-label ( param -- #label )
-    param>> nested-labels get [ param>> eq? ] with find nip ;
-
-M: #call-label infer-classes-before ( #call-label -- )
-    [ find-label returns>> (merge-classes) ] [ out-d>> ] bi
-    [ set-value-class* ] 2each ;
-
-M: #return infer-classes-around
-    nested-labels get length 0 > [
-        dup param>> nested-labels get peek param>> eq? [
-            [ ] [ node-input-classes ] [ in-d>> [ value-class* ] map ] tri
-            classes= not [
-                fixed-point? off
-                [ in-d>> value-classes get valid-keys ] keep
-                set-node-classes
-            ] [ drop ] if
-        ] [ call-next-method ] if
-    ] [ call-next-method ] if ;
-
-M: object infer-classes-around
-    {
-        [ infer-classes-before ]
-        [ annotate-node ]
-        [ infer-children ]
-        [ merge-children ]
-    } cleave ;
-
-: (infer-classes) ( node -- )
-    [
-        [ infer-classes-around ]
-        [ node-successor ] bi
-        (infer-classes)
-    ] when* ;
-
-: infer-classes-with ( node classes literals intervals -- )
-    [
-        V{ } clone nested-labels set
-        H{ } assoc-like value-intervals set
-        H{ } assoc-like value-literals set
-        H{ } assoc-like value-classes set
-        H{ } clone constraints set
-        (infer-classes)
-    ] with-scope ;
-
-: infer-classes ( node -- node )
-    dup f f f infer-classes-with ;
-
-: infer-classes/node ( node existing -- )
-    #! Infer classes, using the existing node's class info as a
-    #! starting point.
-    [ classes>> ] [ literals>> ] [ intervals>> ] tri
-    infer-classes-with ;
diff --git a/core/inference/class/summary.txt b/core/inference/class/summary.txt
deleted file mode 100644
index d929e6995d..0000000000
--- a/core/inference/class/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Static type and class inference
diff --git a/core/inference/dataflow/dataflow-docs.factor b/core/inference/dataflow/dataflow-docs.factor
deleted file mode 100755
index 66b3590253..0000000000
--- a/core/inference/dataflow/dataflow-docs.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-USING: help.syntax help.markup ;
-IN: inference.dataflow
-
-HELP: #return
-{ $values { "label" "a word or " { $link f } } { "node" "a new " { $link node } } }
-{ $description "Creates a node which returns from a nested label, or if " { $snippet "label" } " is " { $link f } ", the top-level word being compiled." } ;
diff --git a/core/inference/dataflow/dataflow.factor b/core/inference/dataflow/dataflow.factor
deleted file mode 100755
index d7e3e78308..0000000000
--- a/core/inference/dataflow/dataflow.factor
+++ /dev/null
@@ -1,319 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic assocs kernel math namespaces parser
-sequences words vectors math.intervals effects classes
-inference.state accessors combinators ;
-IN: inference.dataflow
-
-! Computed value
-: <computed> \ <computed> counter ;
-
-! Literal value
-TUPLE: value < identity-tuple literal uid recursion ;
-
-: <value> ( obj -- value )
-    <computed> recursive-state get value boa ;
-
-M: value hashcode* nip value-uid ;
-
-! Result of curry
-TUPLE: curried obj quot ;
-
-C: <curried> curried
-
-! Result of compose
-TUPLE: composed quot1 quot2 ;
-
-C: <composed> composed
-
-UNION: special curried composed ;
-
-TUPLE: node < identity-tuple
-param
-in-d out-d in-r out-r
-classes literals intervals
-history successor children ;
-
-M: node hashcode* drop node hashcode* ;
-
-GENERIC: flatten-curry ( value -- )
-
-M: curried flatten-curry
-    [ obj>> flatten-curry ]
-    [ quot>> flatten-curry ] bi ;
-
-M: composed flatten-curry
-    [ quot1>> flatten-curry ]
-    [ quot2>> flatten-curry ] bi ;
-
-M: object flatten-curry , ;
-
-: flatten-curries ( seq -- newseq )
-    dup [ special? ] contains? [
-        [ [ flatten-curry ] each ] { } make
-    ] when ;
-
-: flatten-meta-d ( -- seq )
-    meta-d get clone flatten-curries ;
-
-: modify-values ( node quot -- )
-    {
-        [ change-in-d ]
-        [ change-in-r ]
-        [ change-out-d ]
-        [ change-out-r ]
-    } cleave drop ; inline
-
-: node-shuffle ( node -- shuffle )
-    [ in-d>> ] [ out-d>> ] bi <effect> ;
-
-: param-node ( param class -- node )
-    new swap >>param ; inline
-
-: in-node ( seq class -- node )
-    new swap >>in-d ; inline
-
-: all-in-node ( class -- node )
-    flatten-meta-d swap in-node ; inline
-
-: out-node ( seq class -- node )
-    new swap >>out-d ; inline
-
-: all-out-node ( class -- node )
-    flatten-meta-d swap out-node ; inline
-
-: d-tail ( n -- seq )
-    dup zero? [ drop f ] [ meta-d get swap tail* ] if ;
-
-: r-tail ( n -- seq )
-    dup zero? [ drop f ] [ meta-r get swap tail* ] if ;
-
-: node-child node-children first ;
-
-TUPLE: #label < node word loop? returns calls ;
-
-: #label ( word label -- node )
-    \ #label param-node swap >>word ;
-
-PREDICATE: #loop < #label #label-loop? ;
-
-TUPLE: #entry < node ;
-
-: #entry ( -- node ) \ #entry all-out-node ;
-
-TUPLE: #call < node ;
-
-: #call ( word -- node ) \ #call param-node ;
-
-TUPLE: #call-label < node ;
-
-: #call-label ( label -- node ) \ #call-label param-node ;
-
-TUPLE: #push < node ;
-
-: #push ( -- node ) \ #push new ;
-
-TUPLE: #shuffle < node ;
-
-: #shuffle ( -- node ) \ #shuffle new ;
-
-TUPLE: #>r < node ;
-
-: #>r ( -- node ) \ #>r new ;
-
-TUPLE: #r> < node ;
-
-: #r> ( -- node ) \ #r> new ;
-
-TUPLE: #values < node ;
-
-: #values ( -- node ) \ #values all-in-node ;
-
-TUPLE: #return < node ;
-
-: #return ( label -- node )
-    \ #return all-in-node swap >>param ;
-
-TUPLE: #branch < node ;
-
-TUPLE: #if < #branch ;
-
-: #if ( -- node ) peek-d 1array \ #if in-node ;
-
-TUPLE: #dispatch < #branch ;
-
-: #dispatch ( -- node ) peek-d 1array \ #dispatch in-node ;
-
-TUPLE: #merge < node ;
-
-: #merge ( -- node ) \ #merge all-out-node ;
-
-TUPLE: #terminate < node ;
-
-: #terminate ( -- node ) \ #terminate new ;
-
-TUPLE: #declare < node ;
-
-: #declare ( classes -- node ) \ #declare param-node ;
-
-: node-inputs ( d-count r-count node -- )
-    tuck
-    [ swap d-tail flatten-curries >>in-d drop ]
-    [ swap r-tail flatten-curries >>in-r drop ] 2bi* ;
-
-: node-outputs ( d-count r-count node -- )
-    tuck
-    [ swap d-tail flatten-curries >>out-d drop ]
-    [ swap r-tail flatten-curries >>out-r drop ] 2bi* ;
-
-: node, ( node -- )
-    dataflow-graph get [
-        dup current-node [ set-node-successor ] change
-    ] [
-        dup dataflow-graph set  current-node set
-    ] if ;
-
-: node-values ( node -- values )
-    { [ in-d>> ] [ out-d>> ] [ in-r>> ] [ out-r>> ] } cleave
-    4array concat ;
-
-: last-node ( node -- last )
-    dup successor>> [ last-node ] [ ] ?if ;
-
-: penultimate-node ( node -- penultimate )
-    dup successor>> dup [
-        dup successor>>
-        [ nip penultimate-node ] [ drop ] if
-    ] [
-        2drop f
-    ] if ;
-
-: #drop ( n -- #shuffle )
-    d-tail flatten-curries \ #shuffle in-node ;
-
-: node-exists? ( node quot -- ? )
-    over [
-        2dup 2slip rot [
-            2drop t
-        ] [
-            >r [ children>> ] [ successor>> ] bi suffix r>
-            [ node-exists? ] curry contains?
-        ] if
-    ] [
-        2drop f
-    ] if ; inline
-
-GENERIC: calls-label* ( label node -- ? )
-
-M: node calls-label* 2drop f ;
-
-M: #call-label calls-label* param>> eq? ;
-
-: calls-label? ( label node -- ? )
-    [ calls-label* ] with node-exists? ;
-
-: recursive-label? ( node -- ? )
-    [ param>> ] keep calls-label? ;
-
-SYMBOL: node-stack
-
-: >node node-stack get push ;
-: node> node-stack get pop ;
-: node@ node-stack get peek ;
-
-: iterate-next ( -- node ) node@ successor>> ;
-
-: iterate-nodes ( node quot -- )
-    over [
-        [ swap >node call node> drop ] keep iterate-nodes
-    ] [
-        2drop
-    ] if ; inline
-
-: (each-node) ( quot -- next )
-    node@ [ swap call ] 2keep
-    node-children [
-        [
-            [ (each-node) ] keep swap
-        ] iterate-nodes
-    ] each drop
-    iterate-next ; inline
-
-: with-node-iterator ( quot -- )
-    >r V{ } clone node-stack r> with-variable ; inline
-
-: each-node ( node quot -- )
-    [
-        swap [
-            [ (each-node) ] keep swap
-        ] iterate-nodes drop
-    ] with-node-iterator ; inline
-
-: map-children ( node quot -- )
-    over [
-        over children>> [
-            [ map ] curry change-children drop
-        ] [
-            2drop
-        ] if
-    ] [
-        2drop
-    ] if ; inline
-
-: (transform-nodes) ( prev node quot -- )
-    dup >r call dup [
-        >>successor
-        successor>> dup successor>>
-        r> (transform-nodes)
-    ] [
-        r> 2drop f >>successor drop
-    ] if ; inline
-
-: transform-nodes ( node quot -- new-node )
-    over [
-        [ call dup dup successor>> ] keep (transform-nodes)
-    ] [ drop ] if ; inline
-
-: node-literal? ( node value -- ? )
-    dup value? >r swap literals>> key? r> or ;
-
-: node-literal ( node value -- obj )
-    dup value?
-    [ nip value-literal ] [ swap literals>> at ] if ;
-
-: node-interval ( node value -- interval )
-    swap intervals>> at ;
-
-: node-class ( node value -- class )
-    swap classes>> at object or ;
-
-: node-input-classes ( node -- seq )
-    dup in-d>> [ node-class ] with map ;
-
-: node-output-classes ( node -- seq )
-    dup out-d>> [ node-class ] with map ;
-
-: node-input-intervals ( node -- seq )
-    dup in-d>> [ node-interval ] with map ;
-
-: node-class-first ( node -- class )
-    dup in-d>> first node-class ;
-
-: active-children ( node -- seq )
-    children>> [ last-node ] map [ #terminate? not ] filter ;
-
-DEFER: #tail?
-
-PREDICATE: #tail-merge < #merge node-successor #tail? ;
-
-PREDICATE: #tail-values < #values node-successor #tail? ;
-
-UNION: #tail
-    POSTPONE: f #return #tail-values #tail-merge #terminate ;
-
-: tail-call? ( -- ? )
-    #! We don't consider calls which do non-local exits to be
-    #! tail calls, because this gives better error traces.
-    node-stack get [
-        successor>> [ #tail? ] [ #terminate? not ] bi and
-    ] all? ;
diff --git a/core/inference/dataflow/summary.txt b/core/inference/dataflow/summary.txt
deleted file mode 100644
index 6457d1c97b..0000000000
--- a/core/inference/dataflow/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Dataflow IR used by stack effect inference and compiler
diff --git a/core/inference/errors/errors.factor b/core/inference/errors/errors.factor
deleted file mode 100644
index f565420cac..0000000000
--- a/core/inference/errors/errors.factor
+++ /dev/null
@@ -1,58 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-IN: inference.errors
-USING: inference.backend inference.dataflow kernel generic
-sequences prettyprint io words arrays inspector effects debugger
-assocs accessors ;
-
-M: inference-error error.
-    dup rstate>>
-    keys [ dup value? [ value-literal ] when ] map
-    dup empty? [ "Word: " write dup peek . ] unless
-    swap error>> error. "Nesting: " write . ;
-
-M: inference-error error-help drop f ;
-
-M: unbalanced-branches-error error.
-    "Unbalanced branches:" print
-    dup unbalanced-branches-error-quots
-    over unbalanced-branches-error-in
-    rot unbalanced-branches-error-out [ length ] map
-    3array flip [ [ bl ] [ pprint ] interleave nl ] each ;
-
-M: literal-expected summary
-    drop "Literal value expected" ;
-
-M: too-many->r summary
-    drop
-    "Quotation pushes elements on retain stack without popping them" ;
-
-M: too-many-r> summary
-    drop
-    "Quotation pops retain stack elements which it did not push" ;
-
-M: no-effect error.
-    "Unable to infer stack effect of " write no-effect-word . ;
-
-M: recursive-declare-error error.
-    "The recursive word " write
-    recursive-declare-error-word pprint
-    " must declare a stack effect" print ;
-
-M: effect-error error.
-    "Stack effects of the word " write
-    dup effect-error-word pprint
-    " do not match." print
-    "Declared: " write
-    dup effect-error-word stack-effect effect>string .
-    "Inferred: " write effect-error-effect effect>string . ;
-
-M: recursive-quotation-error error.
-    "The quotation " write
-    recursive-quotation-error-quot pprint
-    " calls itself." print
-    "Stack effect inference is undecidable when quotation-level recursion is permitted." print ;
-
-M: cannot-unify-specials summary
-    drop
-    "Cannot unify branches with inconsistent special values" ;
diff --git a/core/inference/inference.factor b/core/inference/inference.factor
deleted file mode 100755
index 3f52eaadf4..0000000000
--- a/core/inference/inference.factor
+++ /dev/null
@@ -1,34 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: inference.backend inference.state inference.dataflow
-inference.known-words inference.transforms inference.errors
-kernel io effects namespaces sequences quotations vocabs
-generic words ;
-IN: inference
-
-GENERIC: infer ( quot -- effect )
-
-M: callable infer ( quot -- effect )
-    [ f infer-quot ] with-infer drop ;
-
-: infer. ( quot -- )
-    infer effect>string print ;
-
-GENERIC: dataflow ( quot -- dataflow )
-
-M: callable dataflow
-    [ f infer-quot ] with-infer nip ;
-
-GENERIC# dataflow-with 1 ( quot stack -- dataflow )
-
-M: callable dataflow-with
-    [
-        V{ } like meta-d set
-        f infer-quot
-    ] with-infer nip ;
-
-: forget-errors ( -- )
-    all-words [
-        dup subwords [ f "no-effect" set-word-prop ] each
-        f "no-effect" set-word-prop
-    ] each ;
diff --git a/core/inference/known-words/known-words.factor b/core/inference/known-words/known-words.factor
deleted file mode 100755
index 2d45ce0d0c..0000000000
--- a/core/inference/known-words/known-words.factor
+++ /dev/null
@@ -1,592 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.accessors arrays bit-arrays byte-arrays
-classes sequences.private continuations.private effects
-float-arrays generic hashtables hashtables.private
-inference.state inference.backend inference.dataflow io
-io.backend io.files io.files.private io.streams.c kernel
-kernel.private math math.private memory namespaces
-namespaces.private parser prettyprint quotations
-quotations.private sbufs sbufs.private sequences
-sequences.private slots.private strings strings.private system
-threads.private classes.tuple classes.tuple.private vectors
-vectors.private words words.private assocs inspector
-compiler.units system.private ;
-IN: inference.known-words
-
-! Shuffle words
-: infer-shuffle-inputs ( shuffle node -- )
-    >r effect-in length 0 r> node-inputs ;
-
-: shuffle-stacks ( shuffle -- )
-    meta-d [ swap shuffle ] change ;
-
-: infer-shuffle-outputs ( shuffle node -- )
-    >r effect-out length 0 r> node-outputs ;
-
-: infer-shuffle ( shuffle -- )
-    dup effect-in ensure-values
-    #shuffle
-    2dup infer-shuffle-inputs
-    over shuffle-stacks
-    2dup infer-shuffle-outputs
-    node, drop ;
-
-: define-shuffle ( word shuffle -- )
-    [ infer-shuffle ] curry "infer" set-word-prop ;
-
-{
-    { drop  T{ effect f 1 {             } } }
-    { 2drop T{ effect f 2 {             } } }
-    { 3drop T{ effect f 3 {             } } }
-    { dup   T{ effect f 1 { 0 0         } } }
-    { 2dup  T{ effect f 2 { 0 1 0 1     } } }
-    { 3dup  T{ effect f 3 { 0 1 2 0 1 2 } } }
-    { rot   T{ effect f 3 { 1 2 0       } } }
-    { -rot  T{ effect f 3 { 2 0 1       } } }
-    { dupd  T{ effect f 2 { 0 0 1       } } }
-    { swapd T{ effect f 3 { 1 0 2       } } }
-    { nip   T{ effect f 2 { 1           } } }
-    { 2nip  T{ effect f 3 { 2           } } }
-    { tuck  T{ effect f 2 { 1 0 1       } } }
-    { over  T{ effect f 2 { 0 1 0       } } }
-    { pick  T{ effect f 3 { 0 1 2 0     } } }
-    { swap  T{ effect f 2 { 1 0         } } }
-} [ define-shuffle ] assoc-each
-
-\ >r [ 1 infer->r ] "infer" set-word-prop
-
-\ r> [ 1 infer-r> ] "infer" set-word-prop
-
-\ declare [
-    1 ensure-values
-    pop-literal nip
-    dup ensure-values
-    dup length d-tail
-    swap #declare
-    [ 2dup set-node-in-d set-node-out-d ] keep
-    node,
-] "infer" set-word-prop
-
-! Primitive combinators
-GENERIC: infer-call ( value -- )
-
-M: value infer-call
-    drop
-    1 #drop node,
-    pop-d infer-quot-value ;
-
-M: curried infer-call
-    infer-uncurry peek-d infer-call ;
-
-M: composed infer-call
-    infer-uncurry
-    1 infer->r peek-d infer-call
-    terminated? get [ 1 infer-r> peek-d infer-call ] unless ;
-
-M: object infer-call
-    \ literal-expected inference-warning ;
-
-\ call [
-    1 ensure-values
-    peek-d infer-call
-] "infer" set-word-prop
-
-\ call t "no-compile" set-word-prop
-
-\ execute [
-    1 ensure-values
-    pop-literal nip
-    dup word? [
-        apply-object
-    ] [
-        drop
-        "execute must be given a word" time-bomb
-    ] if
-] "infer" set-word-prop
-
-\ if [
-    3 ensure-values
-    2 d-tail [ special? ] contains? [
-        [ rot [ drop call ] [ nip call ] if ]
-        recursive-state get infer-quot
-    ] [
-        [ #values ]
-        2 #drop node, pop-d pop-d swap 2array
-        [ #if ] infer-branches
-    ] if
-] "infer" set-word-prop
-
-\ dispatch [
-    2 ensure-values
-    [ gensym #return ]
-    pop-literal nip [ <value> ] map
-    [ #dispatch ] infer-branches
-] "infer" set-word-prop
-
-\ curry [
-    2 ensure-values
-    pop-d pop-d swap <curried> push-d
-] "infer" set-word-prop
-
-\ compose [
-    2 ensure-values
-    pop-d pop-d swap <composed> push-d
-] "infer" set-word-prop
-
-! Variadic tuple constructor
-\ <tuple-boa> [
-    \ <tuple-boa>
-    peek-d value-literal layout-size { tuple } <effect>
-    make-call-node
-] "infer" set-word-prop
-
-! Non-standard control flow
-\ (throw) [
-    \ (throw)
-    peek-d value-literal 2 + { } <effect>
-    t over set-effect-terminated?
-    make-call-node
-] "infer" set-word-prop
-
-:  set-primitive-effect ( word effect -- )
-    2dup effect-out "default-output-classes" set-word-prop
-    dupd [ make-call-node ] 2curry "infer" set-word-prop ;
-
-! Stack effects for all primitives
-\ fixnum< { fixnum fixnum } { object } <effect> set-primitive-effect
-\ fixnum< make-foldable
-
-\ fixnum<= { fixnum fixnum } { object } <effect> set-primitive-effect
-\ fixnum<= make-foldable
-
-\ fixnum> { fixnum fixnum } { object } <effect> set-primitive-effect
-\ fixnum> make-foldable
-
-\ fixnum>= { fixnum fixnum } { object } <effect> set-primitive-effect
-\ fixnum>= make-foldable
-
-\ eq? { object object } { object } <effect> set-primitive-effect
-\ eq? make-foldable
-
-\ rehash-string { string } { } <effect> set-primitive-effect
-
-\ bignum>fixnum { bignum } { fixnum } <effect> set-primitive-effect
-\ bignum>fixnum make-foldable
-
-\ float>fixnum { float } { fixnum } <effect> set-primitive-effect
-\ bignum>fixnum make-foldable
-
-\ fixnum>bignum { fixnum } { bignum } <effect> set-primitive-effect
-\ fixnum>bignum make-foldable
-
-\ float>bignum { float } { bignum } <effect> set-primitive-effect
-\ float>bignum make-foldable
-
-\ fixnum>float { fixnum } { float } <effect> set-primitive-effect
-\ fixnum>float make-foldable
-
-\ bignum>float { bignum } { float } <effect> set-primitive-effect
-\ bignum>float make-foldable
-
-\ <ratio> { integer integer } { ratio } <effect> set-primitive-effect
-\ <ratio> make-foldable
-
-\ string>float { string } { float } <effect> set-primitive-effect
-\ string>float make-foldable
-
-\ float>string { float } { string } <effect> set-primitive-effect
-\ float>string make-foldable
-
-\ float>bits { real } { integer } <effect> set-primitive-effect
-\ float>bits make-foldable
-
-\ double>bits { real } { integer } <effect> set-primitive-effect
-\ double>bits make-foldable
-
-\ bits>float { integer } { float } <effect> set-primitive-effect
-\ bits>float make-foldable
-
-\ bits>double { integer } { float } <effect> set-primitive-effect
-\ bits>double make-foldable
-
-\ <complex> { real real } { complex } <effect> set-primitive-effect
-\ <complex> make-foldable
-
-\ fixnum+ { fixnum fixnum } { integer } <effect> set-primitive-effect
-\ fixnum+ make-foldable
-
-\ fixnum+fast { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum+fast make-foldable
-
-\ fixnum- { fixnum fixnum } { integer } <effect> set-primitive-effect
-\ fixnum- make-foldable
-
-\ fixnum-fast { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-fast make-foldable
-
-\ fixnum* { fixnum fixnum } { integer } <effect> set-primitive-effect
-\ fixnum* make-foldable
-
-\ fixnum*fast { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum*fast make-foldable
-
-\ fixnum/i { fixnum fixnum } { integer } <effect> set-primitive-effect
-\ fixnum/i make-foldable
-
-\ fixnum-mod { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-mod make-foldable
-
-\ fixnum/mod { fixnum fixnum } { integer fixnum } <effect> set-primitive-effect
-\ fixnum/mod make-foldable
-
-\ fixnum-bitand { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-bitand make-foldable
-
-\ fixnum-bitor { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-bitor make-foldable
-
-\ fixnum-bitxor { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-bitxor make-foldable
-
-\ fixnum-bitnot { fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-bitnot make-foldable
-
-\ fixnum-shift { fixnum fixnum } { integer } <effect> set-primitive-effect
-\ fixnum-shift make-foldable
-
-\ fixnum-shift-fast { fixnum fixnum } { fixnum } <effect> set-primitive-effect
-\ fixnum-shift-fast make-foldable
-
-\ bignum= { bignum bignum } { object } <effect> set-primitive-effect
-\ bignum= make-foldable
-
-\ bignum+ { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum+ make-foldable
-
-\ bignum- { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum- make-foldable
-
-\ bignum* { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum* make-foldable
-
-\ bignum/i { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum/i make-foldable
-
-\ bignum-mod { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum-mod make-foldable
-
-\ bignum/mod { bignum bignum } { bignum bignum } <effect> set-primitive-effect
-\ bignum/mod make-foldable
-
-\ bignum-bitand { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum-bitand make-foldable
-
-\ bignum-bitor { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum-bitor make-foldable
-
-\ bignum-bitxor { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum-bitxor make-foldable
-
-\ bignum-bitnot { bignum } { bignum } <effect> set-primitive-effect
-\ bignum-bitnot make-foldable
-
-\ bignum-shift { bignum bignum } { bignum } <effect> set-primitive-effect
-\ bignum-shift make-foldable
-
-\ bignum< { bignum bignum } { object } <effect> set-primitive-effect
-\ bignum< make-foldable
-
-\ bignum<= { bignum bignum } { object } <effect> set-primitive-effect
-\ bignum<= make-foldable
-
-\ bignum> { bignum bignum } { object } <effect> set-primitive-effect
-\ bignum> make-foldable
-
-\ bignum>= { bignum bignum } { object } <effect> set-primitive-effect
-\ bignum>= make-foldable
-
-\ bignum-bit? { bignum integer } { object } <effect> set-primitive-effect
-\ bignum-bit? make-foldable
-
-\ bignum-log2 { bignum } { bignum } <effect> set-primitive-effect
-\ bignum-log2 make-foldable
-
-\ byte-array>bignum { byte-array } { bignum } <effect> set-primitive-effect
-\ byte-array>bignum make-foldable
-
-\ float= { float float } { object } <effect> set-primitive-effect
-\ float= make-foldable
-
-\ float+ { float float } { float } <effect> set-primitive-effect
-\ float+ make-foldable
-
-\ float- { float float } { float } <effect> set-primitive-effect
-\ float- make-foldable
-
-\ float* { float float } { float } <effect> set-primitive-effect
-\ float* make-foldable
-
-\ float/f { float float } { float } <effect> set-primitive-effect
-\ float/f make-foldable
-
-\ float< { float float } { object } <effect> set-primitive-effect
-\ float< make-foldable
-
-\ float-mod { float float } { float } <effect> set-primitive-effect
-\ float-mod make-foldable
-
-\ float<= { float float } { object } <effect> set-primitive-effect
-\ float<= make-foldable
-
-\ float> { float float } { object } <effect> set-primitive-effect
-\ float> make-foldable
-
-\ float>= { float float } { object } <effect> set-primitive-effect
-\ float>= make-foldable
-
-\ <word> { object object } { word } <effect> set-primitive-effect
-\ <word> make-flushable
-
-\ word-xt { word } { integer integer } <effect> set-primitive-effect
-\ word-xt make-flushable
-
-\ getenv { fixnum } { object } <effect> set-primitive-effect
-\ getenv make-flushable
-
-\ setenv { object fixnum } { } <effect> set-primitive-effect
-
-\ (exists?) { string } { object } <effect> set-primitive-effect
-
-\ (directory) { string } { array } <effect> set-primitive-effect
-
-\ gc { } { } <effect> set-primitive-effect
-
-\ gc-stats { } { array } <effect> set-primitive-effect
-
-\ save-image { string } { } <effect> set-primitive-effect
-
-\ save-image-and-exit { string } { } <effect> set-primitive-effect
-
-\ exit { integer } { } <effect>
-t over set-effect-terminated?
-set-primitive-effect
-
-\ data-room { } { integer integer array } <effect> set-primitive-effect
-\ data-room make-flushable
-
-\ code-room { } { integer integer integer integer } <effect> set-primitive-effect
-\ code-room  make-flushable
-
-\ os-env { string } { object } <effect> set-primitive-effect
-
-\ millis { } { integer } <effect> set-primitive-effect
-\ millis make-flushable
-
-\ tag { object } { fixnum } <effect> set-primitive-effect
-\ tag make-foldable
-
-\ cwd { } { string } <effect> set-primitive-effect
-
-\ cd { string } { } <effect> set-primitive-effect
-
-\ dlopen { string } { dll } <effect> set-primitive-effect
-
-\ dlsym { string object } { c-ptr } <effect> set-primitive-effect
-
-\ dlclose { dll } { } <effect> set-primitive-effect
-
-\ <byte-array> { integer } { byte-array } <effect> set-primitive-effect
-\ <byte-array> make-flushable
-
-\ <bit-array> { integer } { bit-array } <effect> set-primitive-effect
-\ <bit-array> make-flushable
-
-\ <float-array> { integer float } { float-array } <effect> set-primitive-effect
-\ <float-array> make-flushable
-
-\ <displaced-alien> { integer c-ptr } { c-ptr } <effect> set-primitive-effect
-\ <displaced-alien> make-flushable
-
-\ alien-signed-cell { c-ptr integer } { integer } <effect> set-primitive-effect
-\ alien-signed-cell make-flushable
-
-\ set-alien-signed-cell { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-unsigned-cell { c-ptr integer } { integer } <effect> set-primitive-effect
-\ alien-unsigned-cell make-flushable
-
-\ set-alien-unsigned-cell { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-signed-8 { c-ptr integer } { integer } <effect> set-primitive-effect
-\ alien-signed-8 make-flushable
-
-\ set-alien-signed-8 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-unsigned-8 { c-ptr integer } { integer } <effect> set-primitive-effect
-\ alien-unsigned-8 make-flushable
-
-\ set-alien-unsigned-8 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-signed-4 { c-ptr integer } { integer } <effect> set-primitive-effect
-\ alien-signed-4 make-flushable
-
-\ set-alien-signed-4 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-unsigned-4 { c-ptr integer } { integer } <effect> set-primitive-effect
-\ alien-unsigned-4 make-flushable
-
-\ set-alien-unsigned-4 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-signed-2 { c-ptr integer } { fixnum } <effect> set-primitive-effect
-\ alien-signed-2 make-flushable
-
-\ set-alien-signed-2 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-unsigned-2 { c-ptr integer } { fixnum } <effect> set-primitive-effect
-\ alien-unsigned-2 make-flushable
-
-\ set-alien-unsigned-2 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-signed-1 { c-ptr integer } { fixnum } <effect> set-primitive-effect
-\ alien-signed-1 make-flushable
-
-\ set-alien-signed-1 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-unsigned-1 { c-ptr integer } { fixnum } <effect> set-primitive-effect
-\ alien-unsigned-1 make-flushable
-
-\ set-alien-unsigned-1 { integer c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-float { c-ptr integer } { float } <effect> set-primitive-effect
-\ alien-float make-flushable
-
-\ set-alien-float { float c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-double { c-ptr integer } { float } <effect> set-primitive-effect
-\ alien-double make-flushable
-
-\ set-alien-double { float c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-cell { c-ptr integer } { simple-c-ptr } <effect> set-primitive-effect
-\ alien-cell make-flushable
-
-\ set-alien-cell { c-ptr c-ptr integer } { } <effect> set-primitive-effect
-
-\ alien-address { alien } { integer } <effect> set-primitive-effect
-\ alien-address make-flushable
-
-\ slot { object fixnum } { object } <effect> set-primitive-effect
-\ slot make-flushable
-
-\ set-slot { object object fixnum } { } <effect> set-primitive-effect
-
-\ string-nth { fixnum string } { fixnum } <effect> set-primitive-effect
-\ string-nth make-flushable
-
-\ set-string-nth { fixnum fixnum string } { } <effect> set-primitive-effect
-
-\ resize-array { integer array } { array } <effect> set-primitive-effect
-\ resize-array make-flushable
-
-\ resize-byte-array { integer byte-array } { byte-array } <effect> set-primitive-effect
-\ resize-byte-array make-flushable
-
-\ resize-bit-array { integer bit-array } { bit-array } <effect> set-primitive-effect
-\ resize-bit-array make-flushable
-
-\ resize-float-array { integer float-array } { float-array } <effect> set-primitive-effect
-\ resize-float-array make-flushable
-
-\ resize-string { integer string } { string } <effect> set-primitive-effect
-\ resize-string make-flushable
-
-\ <array> { integer object } { array } <effect> set-primitive-effect
-\ <array> make-flushable
-
-\ begin-scan { } { } <effect> set-primitive-effect
-
-\ next-object { } { object } <effect> set-primitive-effect
-
-\ end-scan { } { } <effect> set-primitive-effect
-
-\ size { object } { fixnum } <effect> set-primitive-effect
-\ size make-flushable
-
-\ die { } { } <effect> set-primitive-effect
-
-\ fopen { string string } { alien } <effect> set-primitive-effect
-
-\ fgetc { alien } { object } <effect> set-primitive-effect
-
-\ fwrite { string alien } { } <effect> set-primitive-effect
-
-\ fputc { object alien } { } <effect> set-primitive-effect
-
-\ fread { integer string } { object } <effect> set-primitive-effect
-
-\ fflush { alien } { } <effect> set-primitive-effect
-
-\ fclose { alien } { } <effect> set-primitive-effect
-
-\ expired? { object } { object } <effect> set-primitive-effect
-\ expired? make-flushable
-
-\ <wrapper> { object } { wrapper } <effect> set-primitive-effect
-\ <wrapper> make-foldable
-
-\ (clone) { object } { object } <effect> set-primitive-effect
-\ (clone) make-flushable
-
-\ <string> { integer integer } { string } <effect> set-primitive-effect
-\ <string> make-flushable
-
-\ array>quotation { array } { quotation } <effect> set-primitive-effect
-\ array>quotation make-flushable
-
-\ quotation-xt { quotation } { integer } <effect> set-primitive-effect
-\ quotation-xt make-flushable
-
-\ <tuple> { tuple-layout } { tuple } <effect> set-primitive-effect
-\ <tuple> make-flushable
-
-\ <tuple-layout> { word fixnum array fixnum } { tuple-layout } <effect> set-primitive-effect
-\ <tuple-layout> make-foldable
-
-\ datastack { } { array } <effect> set-primitive-effect
-\ datastack make-flushable
-
-\ retainstack { } { array } <effect> set-primitive-effect
-\ retainstack make-flushable
-
-\ callstack { } { callstack } <effect> set-primitive-effect
-\ callstack make-flushable
-
-\ callstack>array { callstack } { array } <effect> set-primitive-effect
-\ callstack>array make-flushable
-
-\ (sleep) { integer } { } <effect> set-primitive-effect
-
-\ become { array array } { } <effect> set-primitive-effect
-
-\ innermost-frame-quot { callstack } { quotation } <effect> set-primitive-effect
-
-\ innermost-frame-scan { callstack } { fixnum } <effect> set-primitive-effect
-
-\ set-innermost-frame-quot { quotation callstack } { } <effect> set-primitive-effect
-
-\ (os-envs) { } { array } <effect> set-primitive-effect
-
-\ set-os-env { string string } { } <effect> set-primitive-effect
-
-\ unset-os-env { string } { } <effect> set-primitive-effect
-
-\ (set-os-envs) { array } { } <effect> set-primitive-effect
-
-\ do-primitive [ \ do-primitive no-effect ] "infer" set-word-prop
-
-\ dll-valid? { object } { object } <effect> set-primitive-effect
-
-\ modify-code-heap { array object } { } <effect> set-primitive-effect
-
-\ unimplemented { } { } <effect> set-primitive-effect
diff --git a/core/inference/state/state-docs.factor b/core/inference/state/state-docs.factor
deleted file mode 100755
index 8c233e9616..0000000000
--- a/core/inference/state/state-docs.factor
+++ /dev/null
@@ -1,11 +0,0 @@
-USING: help.markup help.syntax inference.state ;
-
-HELP: d-in
-{ $var-description "During inference, holds the number of inputs which the quotation has been inferred to require so far." } ;
-
-HELP: recursive-state
-{ $var-description "During inference, holds an association list mapping words to labels." } ;
-
-HELP: terminated?
-{ $var-description "During inference, a flag set to " { $link t } " if the current control flow path unconditionally throws an error." } ;
-
diff --git a/core/inference/state/state-tests.factor b/core/inference/state/state-tests.factor
deleted file mode 100644
index c63786dc9e..0000000000
--- a/core/inference/state/state-tests.factor
+++ /dev/null
@@ -1,29 +0,0 @@
-IN: inference.state.tests
-USING: tools.test inference.state words kernel namespaces ;
-
-: computing-dependencies ( quot -- dependencies )
-    H{ } clone [ dependencies rot with-variable ] keep ;
-    inline
-
-SYMBOL: a
-SYMBOL: b
-
-[ ] [ a +called+ depends-on ] unit-test
-
-[ H{ { a +called+ } } ] [
-    [ a +called+ depends-on ] computing-dependencies
-] unit-test
-
-[ H{ { a +called+ } { b +inlined+ } } ] [
-    [
-        a +called+ depends-on b +inlined+ depends-on
-    ] computing-dependencies
-] unit-test
-
-[ H{ { a +inlined+ } { b +inlined+ } } ] [
-    [
-        a +inlined+ depends-on
-        a +called+ depends-on
-        b +inlined+ depends-on
-    ] computing-dependencies
-] unit-test
diff --git a/core/inference/state/state.factor b/core/inference/state/state.factor
deleted file mode 100755
index 6f0eecf2d9..0000000000
--- a/core/inference/state/state.factor
+++ /dev/null
@@ -1,43 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: assocs namespaces sequences kernel words ;
-IN: inference.state
-
-! Nesting state to solve recursion
-SYMBOL: recursive-state
-
-! Number of inputs current word expects from the stack
-SYMBOL: d-in
-
-! Compile-time data stack
-SYMBOL: meta-d
-
-: push-d meta-d get push ;
-: pop-d meta-d get pop ;
-: peek-d meta-d get peek ;
-
-! Compile-time retain stack
-SYMBOL: meta-r
-
-: push-r meta-r get push ;
-: pop-r meta-r get pop ;
-: peek-r meta-r get peek ;
-
-! Head of dataflow IR
-SYMBOL: dataflow-graph
-
-SYMBOL: current-node
-
-! Words that the current dataflow IR depends on
-SYMBOL: dependencies
-
-: depends-on ( word how -- )
-    swap dependencies get dup [
-        2dup at +inlined+ eq? [ 3drop ] [ set-at ] if
-    ] [ 3drop ] if ;
-
-! Did the current control-flow path throw an error?
-SYMBOL: terminated?
-
-! Words we've inferred the stack effect of, for rollback
-SYMBOL: recorded
diff --git a/core/inference/transforms/transforms-tests.factor b/core/inference/transforms/transforms-tests.factor
deleted file mode 100755
index a5b898315a..0000000000
--- a/core/inference/transforms/transforms-tests.factor
+++ /dev/null
@@ -1,61 +0,0 @@
-IN: inference.transforms.tests
-USING: sequences inference.transforms tools.test math kernel
-quotations inference accessors combinators words arrays
-classes ;
-
-: compose-n-quot <repetition> >quotation ;
-: compose-n compose-n-quot call ;
-\ compose-n [ compose-n-quot ] 2 define-transform
-: compose-n-test 2 \ + compose-n ;
-
-[ 6 ] [ 1 2 3 compose-n-test ] unit-test
-
-[ 0 ] [ { } bitfield-quot call ] unit-test
-
-[ 256 ] [ 1 { 8 } bitfield-quot call ] unit-test
-
-[ 268 ] [ 3 1 { 8 2 } bitfield-quot call ] unit-test
-
-[ 268 ] [ 1 { 8 { 3 2 } } bitfield-quot call ] unit-test
-
-[ 512 ] [ 1 { { 1+ 8 } } bitfield-quot call ] unit-test
-
-\ new must-infer
-
-TUPLE: a-tuple x y z ;
-
-: set-slots-test ( x y z -- )
-    { set-a-tuple-x set-a-tuple-y } set-slots ;
-
-\ set-slots-test must-infer
-
-: set-slots-test-2
-    { set-a-tuple-x set-a-tuple-x } set-slots ;
-
-[ [ set-slots-test-2 ] infer ] must-fail
-
-TUPLE: color r g b ;
-
-C: <color> color
-
-: cleave-test { [ r>> ] [ g>> ] [ b>> ] } cleave ;
-
-{ 1 3 } [ cleave-test ] must-infer-as
-
-[ 1 2 3 ] [ 1 2 3 <color> cleave-test ] unit-test
-
-[ 1 2 3 ] [ 1 2 3 <color> \ cleave-test word-def call ] unit-test
-
-: 2cleave-test { [ 2array ] [ + ] [ - ] } 2cleave ;
-
-[ { 1 2 } 3 -1 ] [ 1 2 2cleave-test ] unit-test
-
-[ { 1 2 } 3 -1 ] [ 1 2 \ 2cleave-test word-def call ] unit-test
-
-: spread-test { [ sq ] [ neg ] [ recip ] } spread ;
-
-[ 16 -3 1/6 ] [ 4 3 6 spread-test ] unit-test
-
-[ 16 -3 1/6 ] [ 4 3 6 \ spread-test word-def call ] unit-test
-
-[ fixnum instance? ] must-infer
diff --git a/core/inference/transforms/transforms.factor b/core/inference/transforms/transforms.factor
deleted file mode 100755
index 0040629edd..0000000000
--- a/core/inference/transforms/transforms.factor
+++ /dev/null
@@ -1,108 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel words sequences generic math namespaces
-quotations assocs combinators math.bitfields inference.backend
-inference.dataflow inference.state classes.tuple.private effects
-inspector hashtables classes generic sets ;
-IN: inference.transforms
-
-: pop-literals ( n -- rstate seq )
-    dup zero? [
-        drop recursive-state get { }
-    ] [
-        dup ensure-values
-        f swap [ 2drop pop-literal ] map reverse
-    ] if ;
-
-: transform-quot ( quot n -- newquot )
-    [ pop-literals [ ] each ] curry
-    swap
-    [ swap infer-quot ] 3compose ;
-
-: define-transform ( word quot n -- )
-    transform-quot "infer" set-word-prop ;
-
-! Combinators
-\ cond [
-    cond>quot
-] 1 define-transform
-
-\ case [
-    dup empty? [
-        drop [ no-case ]
-    ] [
-        dup peek quotation? [
-            dup peek swap but-last
-        ] [
-            [ no-case ] swap
-        ] if case>quot
-    ] if
-] 1 define-transform
-
-\ cleave [ cleave>quot ] 1 define-transform
-
-\ 2cleave [ 2cleave>quot ] 1 define-transform
-
-\ 3cleave [ 3cleave>quot ] 1 define-transform
-
-\ spread [ spread>quot ] 1 define-transform
-
-! Bitfields
-GENERIC: (bitfield-quot) ( spec -- quot )
-
-M: integer (bitfield-quot) ( spec -- quot )
-    [ swapd shift bitor ] curry ;
-
-M: pair (bitfield-quot) ( spec -- quot )
-    first2 over word? [ >r swapd execute r> ] [ ] ?
-    [ shift bitor ] append 2curry ;
-
-: bitfield-quot ( spec -- quot )
-    [ (bitfield-quot) ] map [ 0 ] prefix concat ;
-
-\ bitfield [ bitfield-quot ] 1 define-transform
-
-\ flags [
-    [ 0 , [ , \ bitor , ] each ] [ ] make
-] 1 define-transform
-
-! Tuple operations
-: [get-slots] ( slots -- quot )
-    [ [ 1quotation , \ keep , ] each \ drop , ] [ ] make ;
-
-\ get-slots [ [get-slots] ] 1 define-transform
-
-ERROR: duplicated-slots-error names ;
-
-M: duplicated-slots-error summary
-    drop "Calling set-slots with duplicate slot setters" ;
-
-\ set-slots [
-    dup all-unique?
-    [ <reversed> [get-slots] ] [ duplicated-slots-error ] if
-] 1 define-transform
-
-\ boa [
-    dup +inlined+ depends-on
-    tuple-layout [ <tuple-boa> ] curry
-] 1 define-transform
-
-\ new [
-    1 ensure-values
-    peek-d value? [
-        pop-literal
-        dup +inlined+ depends-on
-        tuple-layout [ <tuple> ] curry
-        swap infer-quot
-    ] [
-        \ new 1 1 <effect> make-call-node
-    ] if
-] "infer" set-word-prop
-
-\ instance? [
-    [ +inlined+ depends-on ] [ "predicate" word-prop ] bi
-] 1 define-transform
-
-\ (call-next-method) [
-    [ [ +inlined+ depends-on ] bi@ ] [ next-method-quot ] 2bi
-] 2 define-transform
diff --git a/core/init/init-tests.factor b/core/init/init-tests.factor
deleted file mode 100644
index ce68a1d7ab..0000000000
--- a/core/init/init-tests.factor
+++ /dev/null
@@ -1,7 +0,0 @@
-IN: init.tests
-USING: init namespaces sequences math tools.test kernel ;
-
-[ t ] [
-    init-hooks get [ first "libc" = ] find drop
-    init-hooks get [ first "io.backend" = ] find drop <
-] unit-test
diff --git a/core/init/init.factor b/core/init/init.factor
index 6ee11c76fc..953340b985 100755
--- a/core/init/init.factor
+++ b/core/init/init.factor
@@ -1,4 +1,4 @@
-! Copyright (C) 2004, 2007 Slava Pestov.
+! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: continuations continuations.private kernel
 kernel.private sequences assocs namespaces namespaces.private ;
@@ -15,7 +15,7 @@ init-hooks global [ drop V{ } clone ] cache drop
     dup init-hooks get at [ over call ] unless
     init-hooks get set-at ;
 
-: boot ( -- ) init-namespaces init-catchstack ;
+: boot ( -- ) init-namespaces init-catchstack init-error-handler ;
 
 : boot-quot ( -- quot ) 20 getenv ;
 
diff --git a/core/inspector/inspector-tests.factor b/core/inspector/inspector-tests.factor
deleted file mode 100644
index 72c1a9a6bf..0000000000
--- a/core/inspector/inspector-tests.factor
+++ /dev/null
@@ -1,11 +0,0 @@
-USING: kernel tools.test math namespaces prettyprint
-sequences inspector io.streams.string ;
-IN: inspector.tests
-
-[ 1 2 3 ] describe
-f describe
-\ + describe
-H{ } describe
-H{ } describe
-
-[ "fixnum instance\n" ] [ [ 3 describe ] with-string-writer ] unit-test
diff --git a/core/io/binary/binary-tests.factor b/core/io/binary/binary-tests.factor
index a6fea14fc7..5a496093d5 100755
--- a/core/io/binary/binary-tests.factor
+++ b/core/io/binary/binary-tests.factor
@@ -2,7 +2,9 @@ USING: io.binary tools.test classes math ;
 IN: io.binary.tests
 
 [ B{ 0 0 4 HEX: d2 } ] [ 1234 4 >be ] unit-test
+[ B{ 0 0 0 0 0 0 4 HEX: d2 } ] [ 1234 8 >be ] unit-test
 [ B{ HEX: d2 4 0 0 } ] [ 1234 4 >le ] unit-test
+[ B{ HEX: d2 4 0 0 0 0 0 0 } ] [ 1234 8 >le ] unit-test
 
 [ 1234 ] [ 1234 4 >be be> ] unit-test
 [ 1234 ] [ 1234 4 >le le> ] unit-test
diff --git a/core/io/encodings/binary/binary-docs.factor b/core/io/encodings/binary/binary-docs.factor
index fdd9828867..4da1e0811f 100644
--- a/core/io/encodings/binary/binary-docs.factor
+++ b/core/io/encodings/binary/binary-docs.factor
@@ -2,7 +2,10 @@ USING: help.syntax help.markup ;
 IN: io.encodings.binary
 
 HELP: binary
-{ $class-description "This is the encoding descriptor for binary I/O. Making an encoded stream with the binary encoding is a no-op; streams with this encoding deal with byte-arrays, not strings." }
-{ $see-also "encodings-introduction" } ;
+{ $class-description "Encoding descriptor for binary I/O." } ;
 
-ABOUT: binary
+ARTICLE: "io.encodings.binary" "Binary encoding"
+"Making an encoded stream with the binary encoding is a no-op; streams with this encoding deal with byte-arrays, not strings." 
+{ $subsection binary } ;
+
+ABOUT: "io.encodings.binary"
diff --git a/core/io/encodings/encodings.factor b/core/io/encodings/encodings.factor
index 3fe6f9d6aa..36cec298bd 100755
--- a/core/io/encodings/encodings.factor
+++ b/core/io/encodings/encodings.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: math kernel sequences sbufs vectors namespaces growable
 strings io classes continuations destructors combinators
-io.styles io.streams.plain splitting byte-arrays
+io.streams.plain splitting byte-arrays
 sequences.private accessors ;
 IN: io.encodings
 
@@ -14,7 +14,7 @@ GENERIC: encode-char ( char stream encoding -- )
 
 GENERIC: <decoder> ( stream encoding -- newstream )
 
-: replacement-char HEX: fffd ;
+: replacement-char HEX: fffd ; inline
 
 TUPLE: decoder stream code cr ;
 
@@ -28,23 +28,62 @@ ERROR: encode-error ;
 
 ! Decoding
 
-<PRIVATE
-
 M: object <decoder> f decoder boa ;
 
+<PRIVATE
+
+: cr+ t >>cr drop ; inline
+
+: cr- f >>cr drop ; inline
+
 : >decoder< ( decoder -- stream encoding )
-    [ stream>> ] [ code>> ] bi ;
+    [ stream>> ] [ code>> ] bi ; inline
 
-: cr+ t swap set-decoder-cr ; inline
+: fix-read1 ( stream char -- char )
+    over cr>> [
+        over cr-
+        dup CHAR: \n = [
+            drop dup stream-read1
+        ] when
+    ] when nip ; inline
 
-: cr- f swap set-decoder-cr ; inline
+M: decoder stream-read1
+    dup >decoder< decode-char fix-read1 ;
+
+: fix-read ( stream string -- string )
+    over cr>> [
+        over cr-
+        "\n" ?head [
+            over stream-read1 [ suffix ] when*
+        ] when
+    ] when nip ; inline
+
+: (read) ( n quot -- n string )
+    over 0 <string> [
+        [
+            slip over
+            [ swapd set-nth-unsafe f ] [ 3drop t ] if
+        ] 2curry find-integer
+    ] keep ; inline
+
+: finish-read ( n string -- string/f )
+    {
+        { [ over 0 = ] [ 2drop f ] }
+        { [ over not ] [ nip ] }
+        [ swap head ]
+    } cond ; inline
+
+M: decoder stream-read
+    tuck >decoder< [ decode-char ] 2curry (read) finish-read fix-read ;
+
+M: decoder stream-read-partial stream-read ;
 
 : line-ends/eof ( stream str -- str ) f like swap cr- ; inline
 
 : line-ends\r ( stream str -- str ) swap cr+ ; inline
 
 : line-ends\n ( stream str -- str )
-    over decoder-cr over empty? and
+    over cr>> over empty? and
     [ drop dup cr- stream-readln ] [ swap cr- ] if ; inline
 
 : handle-readln ( stream str ch -- str )
@@ -52,83 +91,74 @@ M: object <decoder> f decoder boa ;
         { f [ line-ends/eof ] }
         { CHAR: \r [ line-ends\r ] }
         { CHAR: \n [ line-ends\n ] }
-    } case ;
+    } case ; inline
 
-: fix-read ( stream string -- string )
-    over decoder-cr [
-        over cr-
-        "\n" ?head [
-            over stream-read1 [ suffix ] when*
-        ] when
-    ] when nip ;
-
-: read-loop ( n stream -- string )
-    SBUF" " clone [
-        [
-            >r nip stream-read1 dup
-            [ r> push f ] [ r> 2drop t ] if
-        ] 2curry find-integer drop
-    ] keep "" like f like ;
-
-M: decoder stream-read
-    tuck read-loop fix-read ;
-
-M: decoder stream-read-partial stream-read ;
-
-: (read-until) ( buf quot -- string/f sep/f )
-    ! quot: -- char stop?
+: ((read-until)) ( buf quot: ( -- char stop? ) -- string/f sep/f )
     dup call
     [ >r drop "" like r> ]
-    [ pick push (read-until) ] if ; inline
+    [ pick push ((read-until)) ] if ; inline recursive
 
-M: decoder stream-read-until
-    SBUF" " clone -rot >decoder<
-    [ decode-char [ dup rot memq? ] [ drop f t ] if* ] 3curry
+: (read-until) ( quot -- string/f sep/f )
+    100 <sbuf> swap ((read-until)) ; inline
+
+: decoder-read-until ( seps stream encoding -- string/f sep/f )
+    [ decode-char dup [ dup rot member? ] [ 2drop f t ] if ] 3curry
     (read-until) ;
 
-: fix-read1 ( stream char -- char )
-    over decoder-cr [
-        over cr-
-        dup CHAR: \n = [
-            drop dup stream-read1
-        ] when
-    ] when nip ;
+M: decoder stream-read-until >decoder< decoder-read-until ;
 
-M: decoder stream-read1
-    dup >decoder< decode-char fix-read1 ;
+: decoder-readln ( stream encoding -- string/f sep/f )
+    [ decode-char dup [ dup "\r\n" member? ] [ drop f t ] if ] 2curry
+    (read-until) ;
 
-M: decoder stream-readln ( stream -- str )
-    "\r\n" over stream-read-until handle-readln ;
+M: decoder stream-readln dup >decoder< decoder-readln handle-readln ;
 
-M: decoder dispose decoder-stream dispose ;
+M: decoder dispose stream>> dispose ;
 
 ! Encoding
 M: object <encoder> encoder boa ;
 
 : >encoder< ( encoder -- stream encoding )
-    [ stream>> ] [ code>> ] bi ;
+    [ stream>> ] [ code>> ] bi ; inline
 
 M: encoder stream-write1
     >encoder< encode-char ;
 
+: decoder-write ( string stream encoding -- )
+    [ encode-char ] 2curry each ;
+
 M: encoder stream-write
-    >encoder< [ encode-char ] 2curry each ;
+    >encoder< decoder-write ;
 
-M: encoder dispose encoder-stream dispose ;
+M: encoder dispose stream>> dispose ;
 
-M: encoder stream-flush encoder-stream stream-flush ;
+M: encoder stream-flush stream>> stream-flush ;
 
 INSTANCE: encoder plain-writer
 PRIVATE>
 
-: re-encode ( stream encoding -- newstream )
-    over encoder? [ >r encoder-stream r> ] when <encoder> ;
+GENERIC# re-encode 1 ( stream encoding -- newstream )
+
+M: object re-encode <encoder> ;
+
+M: encoder re-encode [ stream>> ] dip re-encode ;
 
 : encode-output ( encoding -- )
     output-stream [ swap re-encode ] change ;
 
-: re-decode ( stream encoding -- newstream )
-    over decoder? [ >r decoder-stream r> ] when <decoder> ;
+: with-encoded-output ( encoding quot -- )
+    [ [ output-stream get ] dip re-encode ] dip
+    with-output-stream* ; inline
+
+GENERIC# re-decode 1 ( stream encoding -- newstream )
+
+M: object re-decode <decoder> ;
+
+M: decoder re-decode [ stream>> ] dip re-decode ;
 
 : decode-input ( encoding -- )
     input-stream [ swap re-decode ] change ;
+
+: with-decoded-input ( encoding quot -- )
+    [ [ input-stream get ] dip re-decode ] dip
+    with-input-stream* ; inline
diff --git a/core/io/encodings/utf8/utf8-docs.factor b/core/io/encodings/utf8/utf8-docs.factor
index 7a29039eca..7e185fff69 100755
--- a/core/io/encodings/utf8/utf8-docs.factor
+++ b/core/io/encodings/utf8/utf8-docs.factor
@@ -2,7 +2,10 @@ USING: help.markup help.syntax ;
 IN: io.encodings.utf8
 
 HELP: utf8
-{ $class-description "This is the encoding descriptor for a UTF-8 encoding. UTF-8 is a variable-width encoding. 7-bit ASCII characters are encoded as single bytes, and other Unicode code points are encoded as 2 to 4 byte sequences." }
-{ $see-also "encodings-introduction" } ;
+{ $class-description "Encoding descriptor for UTF-8 encoding." } ;
 
-ABOUT: utf8
+ARTICLE: "io.encodings.utf8" "UTF-8 encoding"
+"UTF-8 is a variable-width encoding. 7-bit ASCII characters are encoded as single bytes, and other Unicode code points are encoded as 2 to 4 byte sequences."
+{ $subsection utf8 } ;
+
+ABOUT: "io.encodings.utf8"
diff --git a/core/io/encodings/utf8/utf8-tests.factor b/core/io/encodings/utf8/utf8-tests.factor
index af169854c9..a99575b4ba 100755
--- a/core/io/encodings/utf8/utf8-tests.factor
+++ b/core/io/encodings/utf8/utf8-tests.factor
@@ -1,4 +1,5 @@
-USING: io.encodings.utf8 tools.test io.encodings.string strings arrays unicode ;
+USING: io.encodings.utf8 tools.test io.encodings.string strings arrays
+bootstrap.unicode ;
 IN: io.encodings.utf8.tests
 
 : decode-utf8-w/stream ( array -- newarray )
diff --git a/core/io/encodings/utf8/utf8.factor b/core/io/encodings/utf8/utf8.factor
index 09524802e0..8030d6265e 100755
--- a/core/io/encodings/utf8/utf8.factor
+++ b/core/io/encodings/utf8/utf8.factor
@@ -11,33 +11,33 @@ SINGLETON: utf8
 <PRIVATE 
 
 : starts-2? ( char -- ? )
-    dup [ -6 shift BIN: 10 number= ] when ;
+    dup [ -6 shift BIN: 10 number= ] when ; inline
 
 : append-nums ( stream byte -- stream char )
     over stream-read1 dup starts-2?
     [ swap 6 shift swap BIN: 111111 bitand bitor ]
-    [ 2drop replacement-char ] if ;
+    [ 2drop replacement-char ] if ; inline
 
 : double ( stream byte -- stream char )
-    BIN: 11111 bitand append-nums ;
+    BIN: 11111 bitand append-nums ; inline
 
 : triple ( stream byte -- stream char )
-    BIN: 1111 bitand append-nums append-nums ;
+    BIN: 1111 bitand append-nums append-nums ; inline
 
-: quad ( stream byte -- stream char )
-    BIN: 111 bitand append-nums append-nums append-nums ;
+: quadruple ( stream byte -- stream char )
+    BIN: 111 bitand append-nums append-nums append-nums ; inline
 
 : begin-utf8 ( stream byte -- stream char )
     {
         { [ dup -7 shift zero? ] [ ] }
         { [ dup -5 shift BIN: 110 number= ] [ double ] }
         { [ dup -4 shift BIN: 1110 number= ] [ triple ] }
-        { [ dup -3 shift BIN: 11110 number= ] [ quad ] }
+        { [ dup -3 shift BIN: 11110 number= ] [ quadruple ] }
         [ drop replacement-char ]
-    } cond ;
+    } cond ; inline
 
 : decode-utf8 ( stream -- char/f )
-    dup stream-read1 dup [ begin-utf8 ] when nip ;
+    dup stream-read1 dup [ begin-utf8 ] when nip ; inline
 
 M: utf8 decode-char
     drop decode-utf8 ;
diff --git a/core/io/files/files-docs.factor b/core/io/files/files-docs.factor
index e5034d6103..8e32c100e0 100755
--- a/core/io/files/files-docs.factor
+++ b/core/io/files/files-docs.factor
@@ -1,4 +1,4 @@
-USING: help.markup help.syntax io io.styles strings
+USING: help.markup help.syntax io strings
        io.backend io.files.private quotations ;
 IN: io.files
 
@@ -121,7 +121,8 @@ ARTICLE: "io.files" "Basic file operations"
 { $subsection "file-streams" }
 { $subsection "fs-meta" }
 { $subsection "directories" }
-{ $subsection "delete-move-copy" } ;
+{ $subsection "delete-move-copy" }
+{ $subsection "symbolic-links" } ;
 
 ABOUT: "io.files"
 
@@ -169,16 +170,16 @@ HELP: +symbolic-link+
 { $description "A symbolic link file.  This type is currently implemented on Unix platforms only. See " { $link "symbolic-links" } " for words operating on symbolic links." } ;
 
 HELP: +character-device+
-{ $description "A Unix character device file. This type exists on unix platforms only." } ;
+{ $description "A Unix character device file. This type exists on Unix platforms only." } ;
 
 HELP: +block-device+
-{ $description "A Unix block device file. This type exists on unix platforms only." } ;
+{ $description "A Unix block device file. This type exists on Unix platforms only." } ;
 
 HELP: +fifo+
-{ $description "A Unix fifo file. This type exists on unix platforms only." } ;
+{ $description "A Unix fifo file. This type exists on Unix platforms only." } ;
 
 HELP: +socket+
-{ $description "A Unix socket file. This type exists on unix platforms only." } ;
+{ $description "A Unix socket file. This type exists on Unix platforms only." } ;
 
 HELP: +unknown+
 { $description "A unknown file type." } ;
@@ -326,7 +327,7 @@ HELP: resource-path
 { $description "Resolve a path relative to the Factor source code location." } ;
 
 HELP: pathname
-{ $class-description "Class of pathname presentations. Path name presentations can be created by calling " { $link <pathname> } ". Instances can be passed to " { $link write-object } " to output a clickable pathname." } ;
+{ $class-description "Class of path name objects. Path name objects can be created by calling " { $link <pathname> } "." } ;
 
 HELP: normalize-directory
 { $values { "str" "a pathname string" } { "newstr" "a new pathname string" } }
diff --git a/core/io/files/files-tests.factor b/core/io/files/files-tests.factor
index f10bcef8a9..0723096519 100755
--- a/core/io/files/files-tests.factor
+++ b/core/io/files/files-tests.factor
@@ -1,10 +1,13 @@
 IN: io.files.tests
 USING: tools.test io.files io.files.private io threads kernel
-continuations io.encodings.ascii io.files.unique sequences
-strings accessors io.encodings.utf8 math destructors ;
+continuations io.encodings.ascii sequences
+strings accessors io.encodings.utf8 math destructors
+namespaces ;
 
 \ exists? must-infer
 \ (exists?) must-infer
+\ file-info must-infer
+\ link-info must-infer
 
 [ ] [ "blahblah" temp-file dup exists? [ delete-directory ] [ drop ] if ] unit-test
 [ ] [ "blahblah" temp-file make-directory ] unit-test
@@ -123,6 +126,8 @@ strings accessors io.encodings.utf8 math destructors ;
 
 [ f ] [ "test-blah" temp-file exists? ] unit-test
 
+USE: debugger.threads
+
 [ ] [ "test-quux.txt" temp-file ascii [ [ yield "Hi" write ] "Test" spawn drop ] with-file-writer ] unit-test
 
 [ ] [ "test-quux.txt" temp-file delete-file ] unit-test
@@ -130,6 +135,7 @@ strings accessors io.encodings.utf8 math destructors ;
 [ ] [ "test-quux.txt" temp-file ascii [ [ yield "Hi" write ] "Test" spawn drop ] with-file-writer ] unit-test
 
 [ ] [ "test-quux.txt" "quux-test.txt" [ temp-file ] bi@ move-file ] unit-test
+
 [ t ] [ "quux-test.txt" temp-file exists? ] unit-test
 
 [ ] [ "quux-test.txt" temp-file delete-file ] unit-test
@@ -218,18 +224,6 @@ strings accessors io.encodings.utf8 math destructors ;
 
 [ ] [ "append-test" temp-file ascii <file-appender> dispose ] unit-test
 
-
-
-[ 123 ] [
-    "core" ".test" [
-        [
-            ascii [
-                123 CHAR: a <repetition> >string write
-            ] with-file-writer
-        ] keep file-info size>>
-    ] with-unique-file
-] unit-test
-
 [ "/usr/lib" ] [ "/usr" "lib" append-path ] unit-test
 [ "/usr/lib" ] [ "/usr/" "lib" append-path ] unit-test
 [ "/usr/lib" ] [ "/usr" "./lib" append-path ] unit-test
@@ -274,3 +268,12 @@ strings accessors io.encodings.utf8 math destructors ;
 
 [ "touch-twice-test" temp-file delete-file ] ignore-errors
 [ ] [ 2 [ "touch-twice-test" temp-file touch-file ] times ] unit-test
+
+! aum's bug
+[
+    "." current-directory set
+    ".." "resource-path" set
+    [ "../core/bootstrap/stage2.factor" ]
+    [ "resource:core/bootstrap/stage2.factor" (normalize-path) ]
+    unit-test
+] with-scope
diff --git a/core/io/files/files.factor b/core/io/files/files.factor
index ff265e43b1..e52799d10a 100755
--- a/core/io/files/files.factor
+++ b/core/io/files/files.factor
@@ -47,11 +47,11 @@ HOOK: (file-appender) io-backend ( path -- stream )
 
 : path-separator ( -- string ) os windows? "\\" "/" ? ;
 
-: right-trim-separators ( str -- newstr )
-    [ path-separator? ] right-trim ;
+: trim-right-separators ( str -- newstr )
+    [ path-separator? ] trim-right ;
 
-: left-trim-separators ( str -- newstr )
-    [ path-separator? ] left-trim ;
+: trim-left-separators ( str -- newstr )
+    [ path-separator? ] trim-left ;
 
 : last-path-separator ( path -- n ? )
     [ length 1- ] keep [ path-separator? ] find-last-from ;
@@ -59,13 +59,13 @@ HOOK: (file-appender) io-backend ( path -- stream )
 HOOK: root-directory? io-backend ( path -- ? )
 
 M: object root-directory? ( path -- ? )
-    dup empty? [ drop f ] [ [ path-separator? ] all? ] if ;
+    [ f ] [ [ path-separator? ] all? ] if-empty ;
 
 ERROR: no-parent-directory path ;
 
 : parent-directory ( path -- parent )
     dup root-directory? [
-        right-trim-separators
+        trim-right-separators
         dup last-path-separator [
             1+ cut
         ] [
@@ -80,7 +80,7 @@ ERROR: no-parent-directory path ;
 
 : head-path-separator? ( path1 ? -- ?' )
     [
-        dup empty? [ drop t ] [ first path-separator? ] if
+        [ t ] [ first path-separator? ] if-empty
     ] [
         drop f
     ] if ;
@@ -92,7 +92,7 @@ ERROR: no-parent-directory path ;
 : append-path-empty ( path1 path2 -- path' )
     {
         { [ dup head.? ] [
-            rest left-trim-separators append-path-empty
+            rest trim-left-separators append-path-empty
         ] }
         { [ dup head..? ] [ drop no-parent-directory ] }
         [ nip ]
@@ -121,18 +121,19 @@ PRIVATE>
     {
         { [ over empty? ] [ append-path-empty ] }
         { [ dup empty? ] [ drop ] }
+        { [ over trim-right-separators "." = ] [ nip ] }
         { [ dup absolute-path? ] [ nip ] }
-        { [ dup head.? ] [ rest left-trim-separators append-path ] }
+        { [ dup head.? ] [ rest trim-left-separators append-path ] }
         { [ dup head..? ] [
-            2 tail left-trim-separators
+            2 tail trim-left-separators
             >r parent-directory r> append-path
         ] }
         { [ over absolute-path? over first path-separator? and ] [
             >r 2 head r> append
         ] }
         [
-            >r right-trim-separators "/" r>
-            left-trim-separators 3append
+            >r trim-right-separators "/" r>
+            trim-left-separators 3append
         ]
     } cond ;
 
@@ -141,7 +142,7 @@ PRIVATE>
 
 : file-name ( path -- string )
     dup root-directory? [
-        right-trim-separators
+        trim-right-separators
         dup last-path-separator [ 1+ tail ] [
             drop "resource:" ?head [ file-name ] when
         ] if
@@ -199,7 +200,7 @@ SYMBOL: current-directory
 
 : (normalize-path) ( path -- path' )
     "resource:" ?head [
-        left-trim-separators resource-path
+        trim-left-separators resource-path
         (normalize-path)
     ] [
         current-directory get prepend-path
@@ -218,7 +219,7 @@ M: object normalize-path ( path -- path' )
 HOOK: make-directory io-backend ( path -- )
 
 : make-directories ( path -- )
-    normalize-path right-trim-separators {
+    normalize-path trim-right-separators {
         { [ dup "." = ] [ ] }
         { [ dup root-directory? ] [ ] }
         { [ dup empty? ] [ ] }
@@ -260,7 +261,8 @@ HOOK: delete-directory io-backend ( path -- )
         delete-file
     ] if ;
 
-: to-directory over file-name append-path ;
+: to-directory ( from to -- from to' )
+    over file-name append-path ;
 
 ! Moving and renaming files
 HOOK: move-file io-backend ( from to -- )
@@ -322,7 +324,7 @@ TUPLE: pathname string ;
 
 C: <pathname> pathname
 
-M: pathname <=> [ pathname-string ] compare ;
+M: pathname <=> [ string>> ] compare ;
 
 ! Home directory
 HOOK: home os ( -- dir )
diff --git a/core/io/io-docs.factor b/core/io/io-docs.factor
index 782d4044ae..b639696f57 100755
--- a/core/io/io-docs.factor
+++ b/core/io/io-docs.factor
@@ -87,7 +87,6 @@ $nl
 { $subsection bl }
 "Formatted output:"
 { $subsection format }
-{ $subsection write-object }
 { $subsection with-style }
 { $subsection with-nesting }
 "Tabular output:"
@@ -356,11 +355,6 @@ HELP: bl
 { $description "Outputs a space character (" { $snippet "\" \"" } ") to " { $link output-stream } "." }
 $io-error ;
 
-HELP: write-object
-{ $values { "str" string } { "obj" "an object" } }
-{ $description "Writes a string to " { $link output-stream } ", associating it with the object. If formatted output is supported, the string will become a clickable presentation of the object, otherwise this word behaves like a call to " { $link write } "." }
-$io-error ;
-
 HELP: lines
 { $values { "stream" "an input stream" } { "seq" "a sequence of strings" } }
 { $description "Reads lines of text until the stream is exhausted, collecting them in a sequence of strings." } ;
diff --git a/core/io/io.factor b/core/io/io.factor
index e8521f923c..a03aaac6d8 100755
--- a/core/io/io.factor
+++ b/core/io/io.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2003, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: hashtables generic kernel math namespaces sequences
-continuations destructors assocs io.styles ;
+continuations destructors assocs ;
 IN: io
 
 GENERIC: stream-readln ( stream -- str/f )
@@ -96,13 +96,10 @@ SYMBOL: error-stream
 
 : bl ( -- ) " " write ;
 
-: write-object ( str obj -- )
-    presented associate format ;
-
 : lines ( stream -- seq )
-    [ [ readln dup ] [ ] [ drop ] unfold ] with-input-stream ;
+    [ [ readln dup ] [ ] [ drop ] produce ] with-input-stream ;
 
 : contents ( stream -- str )
     [
-        [ 65536 read dup ] [ ] [ drop ] unfold concat f like
+        [ 65536 read dup ] [ ] [ drop ] produce concat f like
     ] with-input-stream ;
diff --git a/core/io/streams/c/c.factor b/core/io/streams/c/c.factor
index 365d5b7c5d..de6d8519ca 100755
--- a/core/io/streams/c/c.factor
+++ b/core/io/streams/c/c.factor
@@ -58,7 +58,7 @@ M: object init-io ;
 
 : stdin-handle 11 getenv ;
 : stdout-handle 12 getenv ;
-: stderr-handle 38 getenv ;
+: stderr-handle 61 getenv ;
 
 M: object (init-stdio)
     stdin-handle <c-reader>
diff --git a/core/io/streams/nested/nested-tests.factor b/core/io/streams/nested/nested-tests.factor
deleted file mode 100644
index 402cb19c3b..0000000000
--- a/core/io/streams/nested/nested-tests.factor
+++ /dev/null
@@ -1,3 +0,0 @@
-USING: io io.streams.string io.streams.nested kernel math
-namespaces io.styles tools.test ;
-IN: io.streams.nested.tests
diff --git a/core/io/streams/string/string.factor b/core/io/streams/string/string.factor
index 355e913b14..b2b75509e9 100755
--- a/core/io/streams/string/string.factor
+++ b/core/io/streams/string/string.factor
@@ -1,8 +1,8 @@
-! Copyright (C) 2003, 2007 Slava Pestov.
+! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io kernel math namespaces sequences sbufs strings
-generic splitting growable continuations destructors
-io.streams.plain io.encodings math.order ;
+USING: accessors io kernel math namespaces sequences sbufs
+strings generic splitting continuations destructors
+io.streams.plain io.encodings math.order growable ;
 IN: io.streams.string
 
 M: growable dispose drop ;
@@ -18,15 +18,16 @@ M: growable stream-flush drop ;
     <string-writer> swap [ output-stream get ] compose with-output-stream*
     >string ; inline
 
-M: growable stream-read1 dup empty? [ drop f ] [ pop ] if ;
+M: growable stream-read1 [ f ] [ pop ] if-empty ;
 
 : harden-as ( seq growble-exemplar -- newseq )
-    underlying like ;
+    underlying>> like ;
 
 : growable-read-until ( growable n -- str )
     >fixnum dupd tail-slice swap harden-as dup reverse-here ;
 
-: find-last-sep swap [ memq? ] curry find-last drop ;
+: find-last-sep ( seq seps -- n )
+    swap [ memq? ] curry find-last drop ;
 
 M: growable stream-read-until
     [ find-last-sep ] keep over [
@@ -38,13 +39,13 @@ M: growable stream-read-until
     ] if ;
 
 M: growable stream-read
-    dup empty? [
-        2drop f
+    [
+        drop f
     ] [
         [ length swap - 0 max ] keep
         [ swap growable-read-until ] 2keep
         set-length
-    ] if ;
+    ] if-empty ;
 
 M: growable stream-read-partial
     stream-read ;
diff --git a/core/kernel/kernel-docs.factor b/core/kernel/kernel-docs.factor
index c39010f228..8483293274 100755
--- a/core/kernel/kernel-docs.factor
+++ b/core/kernel/kernel-docs.factor
@@ -37,11 +37,9 @@ $nl
 { $subsection r> }
 "The top of the data stack is ``hidden'' between " { $link >r } " and " { $link r> } ":"
 { $example "1 2 3 >r .s r>" "1\n2" }
-"Words must not leave objects on the retain stack, nor expect values to be there on entry. The retain stack is for local storage within a word only, and occurrences of " { $link >r } " and " { $link r> } " must be balanced inside a single quotation. One exception is the following trick involving " { $link if } "; values may be pushed on the retain stack before the condition value is computed, as long as both branches of the " { $link if } " pop the values off the retain stack before returning:"
-{ $code
-    ": foo ( m ? n -- m+n/n )"
-    "    >r [ r> + ] [ drop r> ] if ; ! This is OK"
-} ;
+"Usages of " { $link >r } " and " { $link r> } " must be balanced within a single quotation; quotations are not permitted to pop retain stack elements they did not push, or leave elements on the retain stack after returning."
+$nl
+"The " { $link "inference" } " tool checks retain stack usage. The " { $link "slip-keep-combinators" } " combinators abstract out common retain stack usage patterns." ;
 
 ARTICLE: "cleave-shuffle-equivalence" "Expressing shuffle words with cleave combinators"
 "Cleave combinators are defined in terms of shuffle words, and mappings from certain shuffle idioms to cleave combinators are discussed in the documentation for " { $link bi } ", " { $link 2bi } ", " { $link 3bi } ", " { $link tri } ", " { $link 2tri } " and " { $link 3tri } "."
@@ -160,14 +158,14 @@ $nl
 { $subsection both? }
 { $subsection either? } ;
 
-ARTICLE: "slip-keep-combinators" "The slip and keep combinators"
+ARTICLE: "slip-keep-combinators" "The dip, slip and keep combinators"
+"The dip combinators invoke the quotation at the top of the stack, hiding the values underneath:"
+{ $subsection dip }
+{ $subsection 2dip }
 "The slip combinators invoke a quotation further down on the stack. They are most useful for implementing other combinators:"
 { $subsection slip }
 { $subsection 2slip }
 { $subsection 3slip }
-"The dip combinators invoke the quotation at the top of the stack, hiding the values underneath:"
-{ $subsection dip }
-{ $subsection 2dip }
 "The keep combinators invoke a quotation which takes a number of values off the stack, and then they restore those values:"
 { $subsection keep }
 { $subsection 2keep }
@@ -219,6 +217,16 @@ $nl
 { $example "t \\ t eq? ." "t" }
 "Many words which search collections confuse the case of no element being present with an element being found equal to " { $link f } ". If this distinction is imporant, there is usually an alternative word which can be used; for example, compare " { $link at } " with " { $link at* } "." ;
 
+ARTICLE: "conditionals-boolean-equivalence" "Expressing conditionals with boolean logic"
+"Certain simple conditional forms can be expressed in a simpler manner using boolean logic."
+$nl
+"The following two lines are equivalent:"
+{ $code "[ drop f ] unless" "swap and" }
+"The following two lines are equivalent:"
+{ $code "[ ] [ ] ?if" "swap or" }
+"The following two lines are equivalent, where " { $snippet "L" } " is a literal:"
+{ $code "[ L ] unless*" "L or" } ;
+
 ARTICLE: "conditionals" "Conditionals and logic"
 "The basic conditionals:"
 { $subsection if }
@@ -238,17 +246,20 @@ ARTICLE: "conditionals" "Conditionals and logic"
 { $subsection and }
 { $subsection or }
 { $subsection xor }
+{ $subsection "conditionals-boolean-equivalence" }
 "See " { $link "combinators" } " for forms which abstract away common patterns involving multiple nested branches."
 { $see-also "booleans" "bitwise-arithmetic" both? either? } ;
 
 ARTICLE: "equality" "Equality"
-"There are two distinct notions of ``sameness'' when it comes to objects. You can test if two references point to the same object (" { $emphasis "identity comparison" } "), or you can test if two objects are equal in a domain-specific sense, usually by being instances of the same class, and having equal slot values (" { $emphasis "value comparison" } "). Both notions of equality are equality relations in the mathematical sense."
+"There are two distinct notions of ``sameness'' when it comes to objects."
 $nl
-"Identity comparison:"
+"You can test if two references point to the same object (" { $emphasis "identity comparison" } "). This is rarely used; it is mostly useful with large, mutable objects where the object identity matters but the value is transient:"
 { $subsection eq? }
-"Value comparison:"
+"You can test if two objects are equal in a domain-specific sense, usually by being instances of the same class, and having equal slot values (" { $emphasis "value comparison" } "):"
 { $subsection = }
-"Custom value comparison methods:"
+"A third form of equality is provided by " { $link number= } ". It compares numeric value while disregarding types."
+$nl
+"Custom value comparison methods for use with " { $link = } " can be defined on a generic word:"
 { $subsection equal? }
 "Utility class:"
 { $subsection identity-tuple }
@@ -358,6 +369,13 @@ HELP: =
 { $values { "obj1" object } { "obj2" object } { "?" "a boolean" } }
 { $description
     "Tests if two objects are equal. If " { $snippet "obj1" } " and " { $snippet "obj2" } " point to the same object, outputs " { $link t } ". Otherwise, calls the " { $link equal? } " generic word."
+}
+{ $examples
+    { $example "USING: kernel prettyprint ;" "5 5 = ." "t" }
+    { $example "USING: kernel prettyprint ;" "5 005 = ." "t" }
+    { $example "USING: kernel prettyprint ;" "5 5.0 = ." "f" }
+    { $example "USING: arrays kernel prettyprint ;" "{ \"a\" \"b\" } \"a\" \"b\" 2array = ." "t" }
+    { $example "USING: arrays kernel prettyprint ;" "{ \"a\" \"b\" } [ \"a\" \"b\" ] = ." "f" }
 } ;
 
 HELP: equal?
@@ -372,8 +390,13 @@ HELP: equal?
         { { $snippet "a = b" } " implies " { $snippet "b = a" } }
         { { $snippet "a = b" } " and " { $snippet "b = c" } " implies " { $snippet "a = c" } }
     }
-    $nl
     "If a class defines a custom equality comparison test, it should also define a compatible method for the " { $link hashcode* } " generic word."
+}
+{ $examples
+    "An example demonstrating why this word should only be used to define methods on, and never called directly:"
+    { $example "USING: kernel prettyprint ;" "5 5 equal? ." "f" }
+    "Using " { $link = } " gives the expected behavior:"
+    { $example "USING: kernel prettyprint ;" "5 5 = ." "t" }
 } ;
 
 HELP: identity-tuple
@@ -390,7 +413,7 @@ HELP: clone
 { $values { "obj" object } { "cloned" "a new object" } }
 { $contract "Outputs a new object equal to the given object. This is not guaranteed to actually copy the object; it does nothing with immutable objects, and does not copy words either. However, sequences and tuples can be cloned to obtain a shallow copy of the original." } ;
 
-HELP: ? ( ? true false -- true/false )
+HELP: ?
 { $values { "?" "a generalized boolean" } { "true" object } { "false" object } { "true/false" "one two input objects" } }
 { $description "Chooses between two values depending on the boolean value of " { $snippet "cond" } "." } ;
 
@@ -398,7 +421,7 @@ HELP: >boolean
 { $values { "obj" "a generalized boolean" } { "?" "a boolean" } }
 { $description "Convert a generalized boolean into a boolean. That is, " { $link f } " retains its value, whereas anything else becomes " { $link t } "." } ;
 
-HELP: not ( obj -- ? )
+HELP: not
 { $values { "obj" "a generalized boolean" } { "?" "a boolean" } }
 { $description "For " { $link f } " outputs " { $link t } " and for anything else outputs " { $link f } "." }
 { $notes "This word implements boolean not, so applying it to integers will not yield useful results (all integers have a true value). Bitwise not is the " { $link bitnot } " word." } ;
@@ -426,7 +449,7 @@ HELP: or
 
 HELP: xor
 { $values { "obj1" "a generalized boolean" } { "obj2" "a generalized boolean" } { "?" "a generalized boolean" } }
-{ $description "Tests if at exactly one object is not " { $link f } "." }
+{ $description "If exactly one input is false, outputs the other input. Otherwise outputs " { $link f } "." }
 { $notes "This word implements boolean exclusive or, so applying it to integers will not yield useful results (all integers have a true value). Bitwise exclusive or is the " { $link bitxor } " word." } ;
 
 HELP: both?
@@ -618,7 +641,7 @@ HELP: 2bi*
     "The following two lines are equivalent:"
     { $code
         "[ p ] [ q ] 2bi*"
-        ">r >r q r> r> q"
+        ">r >r p r> r> q"
     }
 } ;
 
@@ -681,26 +704,26 @@ HELP: tri@
     }
 } ;
 
-HELP: if ( cond true false -- )
-{ $values { "cond" "a generalized boolean" } { "true" quotation } { "false" quotation } }
+HELP: if
+{ $values { "?" "a generalized boolean" } { "true" quotation } { "false" quotation } }
 { $description "If " { $snippet "cond" } " is " { $link f } ", calls the " { $snippet "false" } " quotation. Otherwise calls the " { $snippet "true" } " quotation."
 $nl
 "The " { $snippet "cond" } " value is removed from the stack before either quotation is called." } ;
 
 HELP: when
-{ $values { "cond" "a generalized boolean" } { "true" quotation } }
+{ $values { "?" "a generalized boolean" } { "true" quotation } }
 { $description "If " { $snippet "cond" } " is not " { $link f } ", calls the " { $snippet "true" } " quotation."
 $nl
 "The " { $snippet "cond" } " value is removed from the stack before the quotation is called." } ;
 
 HELP: unless
-{ $values { "cond" "a generalized boolean" } { "false" quotation } }
+{ $values { "?" "a generalized boolean" } { "false" quotation } }
 { $description "If " { $snippet "cond" } " is " { $link f } ", calls the " { $snippet "false" } " quotation."
 $nl
 "The " { $snippet "cond" } " value is removed from the stack before the quotation is called." } ;
 
 HELP: if*
-{ $values { "cond" "a generalized boolean" } { "true" "a quotation with stack effect " { $snippet "( cond -- )" } } { "false" quotation } }
+{ $values { "?" "a generalized boolean" } { "true" "a quotation with stack effect " { $snippet "( cond -- )" } } { "false" quotation } }
 { $description "Alternative conditional form that preserves the " { $snippet "cond" } " value if it is true."
 $nl
 "If the condition is true, it is retained on the stack before the " { $snippet "true" } " quotation is called. Otherwise, the condition is removed from the stack and the " { $snippet "false" } " quotation is called."
@@ -709,20 +732,18 @@ $nl
 { $code "X [ Y ] [ Z ] if*" "X dup [ Y ] [ drop Z ] if" } } ;
 
 HELP: when*
-{ $values { "cond" "a generalized boolean" } { "true" "a quotation with stack effect " { $snippet "( cond -- )" } } }
+{ $values { "?" "a generalized boolean" } { "true" "a quotation with stack effect " { $snippet "( cond -- )" } } }
 { $description "Variant of " { $link if* } " with no false quotation."
 $nl
 "The following two lines are equivalent:"
 { $code "X [ Y ] when*" "X dup [ Y ] [ drop ] if" } } ;
 
 HELP: unless*
-{ $values { "cond" "a generalized boolean" } { "false" "a quotation " } }
+{ $values { "?" "a generalized boolean" } { "false" "a quotation " } }
 { $description "Variant of " { $link if* } " with no true quotation." }
 { $notes
 "The following two lines are equivalent:"
-{ $code "X [ Y ] unless*" "X dup [ ] [ drop Y ] if" }
-"The following two lines are equivalent, where " { $snippet "L" } " is a literal:"
-{ $code "[ L ] unless*" "L or" } } ;
+{ $code "X [ Y ] unless*" "X dup [ ] [ drop Y ] if" } } ;
 
 HELP: ?if
 { $values { "default" object } { "cond" "a generalized boolean" } { "true" "a quotation with stack effect " { $snippet "( cond -- )" } } { "false" "a quotation with stack effect " { $snippet "( default -- )" } } }
@@ -785,7 +806,7 @@ HELP: most
 { $values { "x" object } { "y" object } { "quot" "a quotation with stack effect " { $snippet "( x y -- ? )" } } { "z" "either " { $snippet "x" } " or " { $snippet "y" } } }
 { $description "If the quotation yields a true value when applied to " { $snippet "x" } " and " { $snippet "y" } ", outputs " { $snippet "x" } ", otherwise outputs " { $snippet "y" } "." } ;
 
-HELP: curry ( obj quot -- curry )
+HELP: curry
 { $values { "obj" object } { "quot" callable } { "curry" curry } }
 { $description "Partial application. Outputs a " { $link callable } " which first pushes " { $snippet "obj" } " and then calls " { $snippet "quot" } "." }
 { $class-description "The class of objects created by " { $link curry } ". These objects print identically to quotations and implement the sequence protocol, however they only use two cells of storage; a reference to the object and a reference to the underlying quotation." }
@@ -823,7 +844,7 @@ HELP: with
     { $example "USING: kernel math prettyprint sequences ;" "2 { 1 2 3 } [ - ] with map ." "{ 1 0 -1 }" }
 } ;
 
-HELP: compose ( quot1 quot2 -- compose )
+HELP: compose
 { $values { "quot1" callable } { "quot2" callable } { "compose" compose } }
 { $description "Quotation composition. Outputs a " { $link callable } " which calls " { $snippet "quot1" } " followed by " { $snippet "quot2" } "." }
 { $notes
@@ -894,3 +915,12 @@ $nl
     "[ P ] [ Q ] [ ] while T"
 }
 "However, depending on the stack effects of " { $snippet "pred" } " and " { $snippet "quot" } ", the " { $snippet "tail" } " quotation might need to be non-empty in order to balance out the stack effect of branches for stack effect inference." } ;
+
+HELP: assert
+{ $values { "got" "the obtained value" } { "expect" "the expected value" } }
+{ $description "Throws an " { $link assert } " error." }
+{ $error-description "Thrown when a unit test or other assertion fails." } ;
+
+HELP: assert=
+{ $values { "a" object } { "b" object } }
+{ $description "Throws an " { $link assert } " error if " { $snippet "a" } " does not equal " { $snippet "b" } "." } ;
diff --git a/core/kernel/kernel-tests.factor b/core/kernel/kernel-tests.factor
index 4b129ad59d..5cb4abc2e9 100755
--- a/core/kernel/kernel-tests.factor
+++ b/core/kernel/kernel-tests.factor
@@ -50,6 +50,10 @@ IN: kernel.tests
 [ f ] [ 3 f and ] unit-test
 [ 4 ] [ 4 6 or ] unit-test
 [ 6 ] [ f 6 or ] unit-test
+[ f ] [ 1 2 xor ] unit-test
+[ 1 ] [ 1 f xor ] unit-test
+[ 2 ] [ f 2 xor ] unit-test
+[ f ] [ f f xor ] unit-test
 
 [ slip ] must-fail
 [ ] [ :c ] unit-test
@@ -114,6 +118,7 @@ IN: kernel.tests
 
 [ total-failure-1 ] must-fail
 
-: total-failure-2 [ ] (call) unimplemented ;
-
-[ total-failure-2 ] must-fail
+! From combinators.lib
+[ 1 1 2 2 3 3 ] [ 1 2 3 [ dup ] tri@ ] unit-test
+[ 1 4 9 ] [ 1 2 3 [ sq ] tri@ ] unit-test
+[ [ sq ] tri@ ] must-infer
diff --git a/core/kernel/kernel.factor b/core/kernel/kernel.factor
index 9112dbf25e..55ed67e0fa 100755
--- a/core/kernel/kernel.factor
+++ b/core/kernel/kernel.factor
@@ -28,20 +28,20 @@ DEFER: if
 : if ( ? true false -- ) ? call ;
 
 ! Single branch
-: unless ( cond false -- )
+: unless ( ? false -- )
     swap [ drop ] [ call ] if ; inline
 
-: when ( cond true -- )
+: when ( ? true -- )
     swap [ call ] [ drop ] if ; inline
 
 ! Anaphoric
-: if* ( cond true false -- )
+: if* ( ? true false -- )
     pick [ drop call ] [ 2nip call ] if ; inline
 
-: when* ( cond true -- )
+: when* ( ? true -- )
     over [ call ] [ 2drop ] if ; inline
 
-: unless* ( cond false -- )
+: unless* ( ? false -- )
     over [ drop ] [ nip call ] if ; inline
 
 ! Default
@@ -64,15 +64,14 @@ DEFER: if
 
 : 2keep ( x y quot -- x y ) 2over 2slip ; inline
 
-: 3keep ( x y z quot -- x y z )
-    >r 3dup r> -roll 3slip ; inline
+: 3keep ( x y z quot -- x y z ) >r 3dup r> -roll 3slip ; inline
 
 ! Cleavers
 : bi ( x p q -- )
     >r keep r> call ; inline
 
 : tri ( x p q r -- )
-    >r pick >r bi r> r> call ; inline
+    >r >r keep r> keep r> call ; inline
 
 ! Double cleavers
 : 2bi ( x y p q -- )
@@ -93,7 +92,7 @@ DEFER: if
     >r dip r> call ; inline
 
 : tri* ( x y z p q r -- )
-    >r rot >r bi* r> r> call ; inline
+    >r >r 2dip r> dip r> call ; inline
 
 ! Double spreaders
 : 2bi* ( w x y z p q -- )
@@ -110,10 +109,13 @@ DEFER: if
 : 2bi@ ( w x y z quot -- )
     dup 2bi* ; inline
 
-: while ( pred body tail -- )
+: loop ( pred: ( -- ? ) -- )
+    dup slip swap [ loop ] [ drop ] if ; inline recursive
+
+: while ( pred: ( -- ? ) body: ( -- ) tail: ( -- ) -- )
     >r >r dup slip r> r> roll
     [ >r tuck 2slip r> while ]
-    [ 2nip call ] if ; inline
+    [ 2nip call ] if ; inline recursive
 
 ! Object protocol
 GENERIC: hashcode* ( depth obj -- code )
@@ -142,11 +144,9 @@ M: object clone ;
 M: callstack clone (clone) ;
 
 ! Tuple construction
-: new ( class -- tuple )
-    tuple-layout <tuple> ;
+GENERIC: new ( class -- tuple )
 
-: boa ( ... class -- tuple )
-    tuple-layout <tuple-boa> ;
+GENERIC: boa ( ... class -- tuple )
 
 ! Quotation building
 : 2curry ( obj1 obj2 quot -- curry )
@@ -165,15 +165,15 @@ M: callstack clone (clone) ;
     compose compose ; inline
 
 ! Booleans
-: not ( obj -- ? ) f eq? ; inline
-
-: >boolean ( obj -- ? ) t f ? ; inline
+: not ( obj -- ? ) f t ? ; inline
 
 : and ( obj1 obj2 -- ? ) over ? ; inline
 
+: >boolean ( obj -- ? ) t f ? ; inline
+
 : or ( obj1 obj2 -- ? ) dupd ? ; inline
 
-: xor ( obj1 obj2 -- ? ) dup not swap ? ; inline
+: xor ( obj1 obj2 -- ? ) [ f swap ? ] when* ; inline
 
 : both? ( x y quot -- ? ) bi@ and ; inline
 
@@ -186,6 +186,10 @@ M: callstack clone (clone) ;
 ! throw errors before continuations are loaded
 : throw ( error -- * ) 5 getenv [ die ] or 1 (throw) ;
 
+ERROR: assert got expect ;
+
+: assert= ( a b -- ) 2dup = [ 2drop ] [ assert ] if ;
+
 <PRIVATE
 
 : hi-tag ( obj -- n ) 0 slot ; inline
@@ -195,16 +199,3 @@ M: callstack clone (clone) ;
 : do-primitive ( number -- ) "Improper primitive call" throw ;
 
 PRIVATE>
-
-! Deprecated
-M: object delegate drop f ;
-
-GENERIC# get-slots 1 ( tuple slots -- ... )
-
-GENERIC# set-slots 1 ( ... tuple slots -- )
-
-: construct ( ... slots class -- tuple )
-    new [ swap set-slots ] keep ; inline
-
-: construct-delegate ( delegate class -- tuple )
-    >r { set-delegate } r> construct ; inline
diff --git a/core/layouts/layouts-docs.factor b/core/layouts/layouts-docs.factor
index a54df30c50..d24963e73f 100755
--- a/core/layouts/layouts-docs.factor
+++ b/core/layouts/layouts-docs.factor
@@ -107,12 +107,15 @@ ARTICLE: "layouts-limits" "Sizes and limits"
 { $subsection max-array-capacity } ;
 
 ARTICLE: "layouts-bootstrap" "Bootstrap support"
-"Bootstrap support:"
+"Processor cell size for the target architecture:"
 { $subsection bootstrap-cell }
 { $subsection bootstrap-cells }
 { $subsection bootstrap-cell-bits }
+"Range of integers representable by " { $link fixnum } "s of the target architecture:"
 { $subsection bootstrap-most-negative-fixnum }
-{ $subsection bootstrap-most-positive-fixnum } ;
+{ $subsection bootstrap-most-positive-fixnum }
+"Maximum array size for the target architecture:"
+{ $subsection bootstrap-max-array-capacity } ;
 
 ARTICLE: "layouts" "VM memory layouts"
 "The words documented in this section do not ever need to be called by user code. They are documented for the benefit of those wishing to explore the internals of Factor's implementation."
diff --git a/core/layouts/layouts-tests.factor b/core/layouts/layouts-tests.factor
index cf50356f76..b0c5d8cfda 100755
--- a/core/layouts/layouts-tests.factor
+++ b/core/layouts/layouts-tests.factor
@@ -3,3 +3,6 @@ USING: layouts math tools.test ;
 
 [ t ] [ cell integer? ] unit-test
 [ t ] [ bootstrap-cell integer? ] unit-test
+
+! Smoke test
+[ t ] [ max-array-capacity cell-bits 2^ < ] unit-test
diff --git a/core/layouts/layouts.factor b/core/layouts/layouts.factor
index 19fe03202c..4788af1a91 100755
--- a/core/layouts/layouts.factor
+++ b/core/layouts/layouts.factor
@@ -49,6 +49,12 @@ SYMBOL: type-numbers
 : most-negative-fixnum ( -- n )
     first-bignum neg ;
 
+: (max-array-capacity) ( b -- n )
+    5 - 2^ 1- ;
+
+: max-array-capacity ( -- n )
+    cell-bits (max-array-capacity) ;
+
 : bootstrap-first-bignum ( -- n )
     bootstrap-cell-bits (first-bignum) ;
 
@@ -58,6 +64,9 @@ SYMBOL: type-numbers
 : bootstrap-most-negative-fixnum ( -- n )
     bootstrap-first-bignum neg ;
 
+: bootstrap-max-array-capacity ( -- n )
+    bootstrap-cell-bits (max-array-capacity) ;
+
 M: bignum >integer
     dup most-negative-fixnum most-positive-fixnum between?
     [ >fixnum ] when ;
diff --git a/core/lexer/lexer-docs.factor b/core/lexer/lexer-docs.factor
new file mode 100644
index 0000000000..67948cc8f9
--- /dev/null
+++ b/core/lexer/lexer-docs.factor
@@ -0,0 +1,109 @@
+IN: lexer
+USING: help.markup help.syntax kernel math sequences strings
+words quotations ;
+
+HELP: lexer
+{ $var-description "Stores the current " { $link lexer } " instance." }
+{ $class-description "An object for tokenizing parser input. It has the following slots:"
+    { $list
+        { { $snippet "text" } " - the lines being parsed; an array of strings" }
+        { { $snippet "line" } " - the line number being parsed; unlike most indices this is 1-based for friendlier error reporting and integration with text editors" }
+        { { $snippet "column" } " - the current column position, zero-based" }
+    }
+"Custom lexing can be implemented by delegating a tuple to an instance of this class and implementing the " { $link skip-word } " and " { $link skip-blank } " generic words." } ;
+
+HELP: <lexer>
+{ $values { "text" "a sequence of strings" } { "lexer" lexer } }
+{ $description "Creates a new lexer for tokenizing the given sequence of lines." } ;
+
+HELP: next-line
+{ $values { "lexer" lexer } }
+{ $description "Advances the lexer to the next input line, discarding the remainder of the current line." } ;
+
+HELP: lexer-error
+{ $error-description "Thrown when the lexer encounters invalid input. A lexer error wraps an underlying error together with line and column numbers." } ;
+
+HELP: <lexer-error>
+{ $values { "msg" "an error" } { "error" lexer-error } }
+{ $description "Creates a new " { $link lexer-error } ", filling in the location information from the current " { $link lexer } "." } ;
+
+HELP: skip
+{ $values { "i" "a starting index" } { "seq" sequence } { "?" "a boolean" } { "n" integer } }
+{ $description "Skips to the first space character (if " { $snippet "boolean" } " is " { $link f } ") or the first non-space character (otherwise)." } ;
+
+HELP: change-lexer-column
+{ $values { "lexer" lexer } { "quot" "a quotation with stack effect " { $snippet "( col line -- newcol )" } } }
+{ $description "Applies a quotation to the current column and line text to produce a new column, and moves the lexer position." } ;
+
+HELP: skip-blank
+{ $values { "lexer" lexer } }
+{ $contract "Skips whitespace characters." }
+{ $notes "Custom lexers can implement this generic word." } ;
+
+HELP: skip-word
+{ $values { "lexer" lexer } }
+{ $contract
+    "Skips until the end of the current token."
+    $nl
+    "The default implementation treats a single " { $snippet "\"" } " as a word by itself; otherwise it searches forward until a whitespace character or the end of the line."
+}
+{ $notes "Custom lexers can implement this generic word." } ;
+
+HELP: still-parsing-line?
+{ $values { "lexer" lexer } { "?" "a boolean" } }
+{ $description "Outputs " { $link f } " if the end of the current line has been reached, " { $link t } " otherwise." } ;
+
+HELP: parse-token
+{ $values { "lexer" lexer } { "str/f" "a " { $link string } " or " { $link f } } }
+{ $description "Reads the next token from the lexer. Tokens are delimited by whitespace, with the exception that " { $snippet "\"" } " is treated like a single token even when not followed by whitespace." } ;
+
+HELP: scan
+{ $values { "str/f" "a " { $link string } " or " { $link f } } }
+{ $description "Reads the next token from the lexer. See " { $link parse-token } " for details." }
+$parsing-note ;
+
+HELP: still-parsing?
+{ $values { "lexer" lexer } { "?" "a boolean" } }
+{ $description "Outputs " { $link f } " if end of input has been reached, " { $link t } " otherwise." } ;
+
+HELP: parse-tokens
+{ $values { "end" string } { "seq" "a new sequence of strings" } }
+{ $description "Reads a sequence of tokens until the first occurrence of " { $snippet "end" } ". The tokens remain as strings and are not processed in any way." }
+{ $examples "This word is used to implement " { $link POSTPONE: USING: } "." }
+$parsing-note ;
+
+HELP: unexpected
+{ $values { "want" "a " { $link word } " or " { $link f } } { "got" word } }
+{ $description "Throws an " { $link unexpected } " error." }
+{ $error-description "Thrown by the parser if an unmatched closing delimiter is encountered." }
+{ $examples
+    "Parsing the following snippet will throw this error:"
+    { $code "[ 1 2 3 }" }
+} ;
+
+HELP: unexpected-eof
+{ $values { "word" "a " { $link word } } }
+{ $description "Throws an " { $link unexpected } " error indicating the parser was looking for an occurrence of " { $snippet "word" } " but encountered end of file." } ;
+
+HELP: with-lexer
+{ $values { "lexer" lexer } { "quot" quotation } { "newquot" quotation } }
+{ $description "Calls the quotation with the " { $link lexer } " variable set to the given lexer. The quotation can make use of words such as " { $link scan } ". Any errors thrown by the quotation are wrapped in " { $link lexer-error } " instances." } ;
+
+HELP: lexer-factory
+{ $var-description "A variable holding a quotation with stack effect " { $snippet "( lines -- lexer )" } ". This quotation is called by the parser to create " { $link lexer } " instances. This variable can be rebound to a quotation which outputs a custom tuple delegating to " { $link lexer } " to customize syntax." } ;
+
+
+ARTICLE: "parser-lexer" "The lexer"
+"A variable that encapsulate internal parser state:"
+{ $subsection lexer }
+"Creating a default lexer:"
+{ $subsection <lexer> }
+"A word to test of the end of input has been reached:"
+{ $subsection still-parsing? }
+"A word to advance the lexer to the next line:"
+{ $subsection next-line }
+"Two generic words to override the lexer's token boundary detection:"
+{ $subsection skip-blank }
+{ $subsection skip-word }
+"Utility combinator:"
+{ $subsection with-lexer } ;
diff --git a/core/lexer/lexer.factor b/core/lexer/lexer.factor
new file mode 100644
index 0000000000..d284be00c9
--- /dev/null
+++ b/core/lexer/lexer.factor
@@ -0,0 +1,110 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences accessors namespaces math words strings
+io vectors arrays math.parser combinators continuations ;
+IN: lexer
+
+TUPLE: lexer text line line-text line-length column ;
+
+: next-line ( lexer -- )
+    dup [ line>> ] [ text>> ] bi ?nth >>line-text
+    dup line-text>> length >>line-length
+    [ 1+ ] change-line
+    0 >>column
+    drop ;
+
+: new-lexer ( text class -- lexer )
+    new
+        0 >>line
+        swap >>text
+    dup next-line ; inline
+
+: <lexer> ( text -- lexer )
+    lexer new-lexer ;
+
+: skip ( i seq ? -- n )
+    >r tuck r>
+    [ swap CHAR: \s eq? xor ] curry find-from drop
+    [ ] [ length ] ?if ;
+
+: change-lexer-column ( lexer quot -- )
+    swap
+    [ [ column>> ] [ line-text>> ] bi rot call ] keep
+    (>>column) ; inline
+
+GENERIC: skip-blank ( lexer -- )
+
+M: lexer skip-blank ( lexer -- )
+    [ t skip ] change-lexer-column ;
+
+GENERIC: skip-word ( lexer -- )
+
+M: lexer skip-word ( lexer -- )
+    [
+        2dup nth CHAR: " eq? [ drop 1+ ] [ f skip ] if
+    ] change-lexer-column ;
+
+: still-parsing? ( lexer -- ? )
+    [ line>> ] [ text>> ] bi length <= ;
+
+: still-parsing-line? ( lexer -- ? )
+    [ column>> ] [ line-length>> ] bi < ;
+
+: (parse-token) ( lexer -- str )
+    {
+        [ column>> ]
+        [ skip-word ]
+        [ column>> ]
+        [ line-text>> ]
+    } cleave subseq ;
+
+:  parse-token ( lexer -- str/f )
+    dup still-parsing? [
+        dup skip-blank
+        dup still-parsing-line?
+        [ (parse-token) ] [ dup next-line parse-token ] if
+    ] [ drop f ] if ;
+
+: scan ( -- str/f ) lexer get parse-token ;
+
+ERROR: unexpected want got ;
+
+PREDICATE: unexpected-eof < unexpected
+    got>> not ;
+
+: unexpected-eof ( word -- * ) f unexpected ;
+
+: (parse-tokens) ( accum end -- accum )
+    scan 2dup = [
+        2drop
+    ] [
+        [ pick push (parse-tokens) ] [ unexpected-eof ] if*
+    ] if ;
+
+: parse-tokens ( end -- seq )
+    100 <vector> swap (parse-tokens) >array ;
+
+TUPLE: lexer-error line column line-text error ;
+
+: <lexer-error> ( msg -- error )
+    \ lexer-error new
+        lexer get
+        [ line>> >>line ]
+        [ column>> >>column ]
+        [ line-text>> >>line-text ]
+        tri
+        swap >>error ;
+
+: lexer-dump ( error -- )
+    [ line>> number>string ": " append ]
+    [ line-text>> dup string? [ drop "" ] unless ]
+    [ column>> 0 or ] tri
+    pick length + CHAR: \s <string>
+    [ write ] [ print ] [ write "^" print ] tri* ;
+
+: with-lexer ( lexer quot -- newquot )
+    [ lexer set ] dip [ <lexer-error> rethrow ] recover ; inline
+
+SYMBOL: lexer-factory
+
+[ <lexer> ] lexer-factory set-global
diff --git a/core/math/bitfields/bitfields-tests.factor b/core/math/bitfields/bitfields-tests.factor
deleted file mode 100755
index 6dfc51f440..0000000000
--- a/core/math/bitfields/bitfields-tests.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-USING: math math.bitfields tools.test kernel words ;
-IN: math.bitfields.tests
-
-[ 0 ] [ { } bitfield ] unit-test
-[ 256 ] [ 1 { 8 } bitfield ] unit-test
-[ 268 ] [ 3 1 { 8 2 } bitfield ] unit-test
-[ 268 ] [ 1 { 8 { 3 2 } } bitfield ] unit-test
-[ 512 ] [ 1 { { 1+ 8 } } bitfield ] unit-test
-
-: a 1 ; inline
-: b 2 ; inline
-
-: foo { a b } flags ;
-
-[ 3 ] [ foo ] unit-test
-[ 3 ] [ { a b } flags ] unit-test
-[ t ] [ \ foo compiled? ] unit-test
diff --git a/core/math/bitfields/bitfields.factor b/core/math/bitfields/bitfields.factor
deleted file mode 100644
index 77cc40180e..0000000000
--- a/core/math/bitfields/bitfields.factor
+++ /dev/null
@@ -1,18 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel math sequences words ;
-IN: math.bitfields
-
-GENERIC: (bitfield) inline
-
-M: integer (bitfield) ( value accum shift -- newaccum )
-    swapd shift bitor ;
-
-M: pair (bitfield) ( value accum pair -- newaccum )
-    first2 >r dup word? [ swapd execute ] when r> shift bitor ;
-
-: bitfield ( values... bitspec -- n )
-    0 [ (bitfield) ] reduce ;
-
-: flags ( values -- n )
-    0 [ dup word? [ execute ] when bitor ] reduce ;
diff --git a/core/math/bitfields/summary.txt b/core/math/bitfields/summary.txt
deleted file mode 100644
index d622f818fd..0000000000
--- a/core/math/bitfields/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Domain-specific language for constructing integers
diff --git a/core/math/floats/floats-docs.factor b/core/math/floats/floats-docs.factor
index cd2a3c20c8..a1ba16c68a 100644
--- a/core/math/floats/floats-docs.factor
+++ b/core/math/floats/floats-docs.factor
@@ -24,7 +24,7 @@ ABOUT: "floats"
 HELP: float
 { $class-description "The class of double-precision floating point numbers." } ;
 
-HELP: >float ( x -- y )
+HELP: >float
 { $values { "x" real } { "y" float } }
 { $description "Converts a real to a float. This is the identity on floats, and performs a floating point division on rationals." } ;
 
diff --git a/core/math/floats/floats-tests.factor b/core/math/floats/floats-tests.factor
index 095392ed81..bd3f951b02 100755
--- a/core/math/floats/floats-tests.factor
+++ b/core/math/floats/floats-tests.factor
@@ -5,10 +5,17 @@ IN: math.floats.tests
 [ t ] [ 3.1415 number? ] unit-test
 [ f ] [ 12 float? ] unit-test
 
-[ t ] [ 1 1.0 = ] unit-test
-[ t ] [ 1 >bignum 1.0 = ] unit-test
-[ t ] [ 1.0 1 = ] unit-test
-[ t ] [ 1.0 1 >bignum = ] unit-test
+[ f ] [ 1 1.0 = ] unit-test
+[ t ] [ 1 1.0 number= ] unit-test
+
+[ f ] [ 1 >bignum 1.0 = ] unit-test
+[ t ] [ 1 >bignum 1.0 number= ] unit-test
+
+[ f ] [ 1.0 1 = ] unit-test
+[ t ] [ 1.0 1 number= ] unit-test
+
+[ f ] [ 1.0 1 >bignum = ] unit-test
+[ t ] [ 1.0 1 >bignum number= ] unit-test
 
 [ f ] [ 1 1.3 = ] unit-test
 [ f ] [ 1 >bignum 1.3 = ] unit-test
@@ -45,13 +52,10 @@ unit-test
 [ 2.0 ] [ 1.0 1+ ] unit-test
 [ 0.0 ] [ 1.0 1- ] unit-test
 
-! [ t ] [ -0.0 -0.0 = ] unit-test
-! [ f ] [ 0.0 -0.0 = ] unit-test
-
 [ t ] [ 0.0 zero? ] unit-test
 [ t ] [ -0.0 zero? ] unit-test
 
-! [ t ] [ 0.0/0.0 0.0/0.0 = ] unit-test
+! [ f ] [ 0.0/0.0 0.0/0.0 number= ] unit-test
 
 [ 0 ] [ 1/0. >bignum ] unit-test
 
diff --git a/core/math/floats/floats.factor b/core/math/floats/floats.factor
index 5cd6f067a9..9dcff9eb90 100755
--- a/core/math/floats/floats.factor
+++ b/core/math/floats/floats.factor
@@ -10,11 +10,14 @@ M: float >fixnum float>fixnum ;
 M: float >bignum float>bignum ;
 M: float >float ;
 
+M: float hashcode* nip float>bits ;
+M: float equal? over float? [ float= ] [ 2drop f ] if ;
+M: float number= float= ;
+
 M: float < float< ;
 M: float <= float<= ;
 M: float > float> ;
 M: float >= float>= ;
-M: float number= float= ;
 
 M: float + float+ ;
 M: float - float- ;
diff --git a/core/math/integers/integers-docs.factor b/core/math/integers/integers-docs.factor
index 056e19e1de..c75040b6bb 100755
--- a/core/math/integers/integers-docs.factor
+++ b/core/math/integers/integers-docs.factor
@@ -23,17 +23,21 @@ ABOUT: "integers"
 HELP: fixnum
 { $class-description "The class of fixnums, which are fixed-width integers small enough to fit in a machine cell. Because they are not heap-allocated, fixnums do not have object identity. Equality of tagged pointer bit patterns is actually " { $emphasis "value" } " equality for fixnums." } ;
 
-HELP: >fixnum ( x -- n )
+HELP: >fixnum
 { $values { "x" real } { "n" fixnum } }
 { $description "Converts a real number to a fixnum, with a possible loss of precision and overflow." } ;
 
 HELP: bignum
 { $class-description "The class of bignums, which are heap-allocated arbitrary-precision integers." } ;
 
-HELP: >bignum ( x -- n )
+HELP: >bignum
 { $values { "x" real } { "n" bignum } }
 { $description "Converts a real number to a bignum, with a possible loss of precision." } ;
 
+HELP: >integer
+{ $values { "x" real } { "n" bignum } }
+{ $description "Converts a real number to an integer, with a possible loss of precision." } ;
+
 HELP: integer
 { $class-description "The class of integers, which is a disjoint union of fixnums and bignums." } ;
 
diff --git a/core/math/integers/integers-tests.factor b/core/math/integers/integers-tests.factor
index db50d262ad..f428df33ae 100755
--- a/core/math/integers/integers-tests.factor
+++ b/core/math/integers/integers-tests.factor
@@ -192,7 +192,7 @@ unit-test
 [ f ] [ 0 power-of-2? ] unit-test
 [ t ] [ 1 power-of-2? ] unit-test
 
-: ratio>float [ >bignum ] bi@ /f ;
+: ratio>float ( a b -- f ) [ >bignum ] bi@ /f ;
 
 [ 5. ] [ 5 1 ratio>float ] unit-test
 [ 4. ] [ 4 1 ratio>float ] unit-test
@@ -206,7 +206,7 @@ unit-test
 [ HEX: 3fe553522d230931 ]
 [ 61967020039 92984792073 ratio>float double>bits ] unit-test
 
-: random-integer
+: random-integer ( -- n )
     32 random-bits
     1 random zero? [ neg ] when
     1 random zero? [ >bignum ] when ;
diff --git a/core/math/integers/integers.factor b/core/math/integers/integers.factor
index 6563a1cd11..74a93d39bd 100755
--- a/core/math/integers/integers.factor
+++ b/core/math/integers/integers.factor
@@ -1,4 +1,4 @@
-! Copyright (C) 2004, 2007 Slava Pestov.
+! Copyright (C) 2004, 2008 Slava Pestov.
 ! Copyright (C) 2008, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel kernel.private sequences
@@ -12,6 +12,8 @@ M: fixnum >fixnum ;
 M: fixnum >bignum fixnum>bignum ;
 M: fixnum >integer ;
 
+M: fixnum hashcode* nip ;
+M: fixnum equal? over bignum? [ >bignum bignum= ] [ 2drop f ] if ;
 M: fixnum number= eq? ;
 
 M: fixnum < fixnum< ;
@@ -40,14 +42,22 @@ M: fixnum bit? neg shift 1 bitand 0 > ;
 
 : (fixnum-log2) ( accum n -- accum )
     dup 1 number= [ drop ] [ >r 1+ r> 2/ (fixnum-log2) ] if ;
-    inline
+    inline recursive
 
 M: fixnum (log2) 0 swap (fixnum-log2) ;
 
 M: bignum >fixnum bignum>fixnum ;
 M: bignum >bignum ;
 
+M: bignum hashcode* nip >fixnum ;
+
+M: bignum equal?
+    over bignum? [ bignum= ] [
+        swap dup fixnum? [ >bignum bignum= ] [ 2drop f ] if
+    ] if ;
+
 M: bignum number= bignum= ;
+
 M: bignum < bignum< ;
 M: bignum <= bignum<= ;
 M: bignum > bignum> ;
diff --git a/core/math/intervals/intervals-tests.factor b/core/math/intervals/intervals-tests.factor
deleted file mode 100755
index ba728e67c0..0000000000
--- a/core/math/intervals/intervals-tests.factor
+++ /dev/null
@@ -1,224 +0,0 @@
-USING: math.intervals kernel sequences words math math.order
-arrays prettyprint tools.test random vocabs combinators ;
-IN: math.intervals.tests
-
-[ T{ interval f { 1 t } { 2 t } } ] [ 1 2 [a,b] ] unit-test
-
-[ T{ interval f { 1 t } { 2 f } } ] [ 1 2 [a,b) ] unit-test
-
-[ T{ interval f { 1 f } { 2 f } } ] [ 1 2 (a,b) ] unit-test
-
-[ T{ interval f { 1 f } { 2 t } } ] [ 1 2 (a,b] ] unit-test
-
-[ T{ interval f { 1 t } { 1 t } } ] [ 1 [a,a] ] unit-test
-
-[ t ] [ { 3 t } { 3 f } endpoint< ] unit-test
-[ t ] [ { 2 f } { 3 f } endpoint< ] unit-test
-[ f ] [ { 3 f } { 3 t } endpoint< ] unit-test
-[ t ] [ { 4 f } { 3 t } endpoint> ] unit-test
-[ f ] [ { 3 f } { 3 t } endpoint> ] unit-test
-
-[ t ] [
-    1 2 [a,b] -3 3 [a,b] interval+ -2 5 [a,b] =
-] unit-test
-
-[ t ] [
-    1 2 [a,b] -3 3 (a,b) interval+ -2 5 (a,b) =
-] unit-test
-
-[ t ] [
-    1 2 [a,b] 0 1 [a,b] interval- 0 2 [a,b] =
-] unit-test
-
-[ t ] [
-    1 2 [a,b] 0 4 [a,b] interval* 0 8 [a,b] =
-] unit-test
-
-[ t ] [
-    1 2 [a,b] -4 4 [a,b] interval* -8 8 [a,b] =
-] unit-test
-
-[ t ] [
-    1 2 [a,b] -0.5 0.5 [a,b] interval* -1 1 [a,b] =
-] unit-test
-
-[ t ] [
-    1 2 [a,b] -0.5 0.5 (a,b] interval* -1 1 (a,b] =
-] unit-test
-
-[ t ] [
-    -1 1 [a,b] -1 1 (a,b] interval* -1 1 [a,b] =
-] unit-test
-
-[ t ] [
-    0 1 (a,b) 0 1 [a,b] interval-union 0 1 [a,b] =
-] unit-test
-
-[ t ] [
-    0 1 (a,b) 1 2 [a,b] interval-union 0 2 (a,b] =
-] unit-test
-
-[ f ] [ 0 1 (a,b) f interval-union ] unit-test
-
-[ t ] [
-    0 1 (a,b) 0 1 [a,b] interval-intersect 0 1 (a,b) =
-] unit-test
-
-[ f ] [ 0 5 [a,b] -1 [a,a] interval-intersect ] unit-test
-
-[ f ] [ 0 5 (a,b] 0 [a,a] interval-intersect ] unit-test
-
-[ t ] [
-    0 1 (a,b) 0 1 [a,b] interval-subset?
-] unit-test
-
-[ f ] [
-    0 0 1 (a,b) interval-contains?
-] unit-test
-
-[ t ] [
-    0.5 0 1 (a,b) interval-contains?
-] unit-test
-
-[ f ] [
-    1 0 1 (a,b) interval-contains?
-] unit-test
-
-[ f ] [ -1 1 (a,b) -1 1 (a,b) interval/ ] unit-test
-
-[ f ] [ -1 1 (a,b) 0 1 (a,b) interval/ ] unit-test
-
-"math.ratios.private" vocab [
-    [ t ] [
-        -1 1 (a,b) 0.5 1 (a,b) interval/ -2 2 (a,b) =
-    ] unit-test
-] when
-
-[ t ] [ 1 [a,a] interval-singleton? ] unit-test
-
-[ f ] [ 1 1 [a,b) interval-singleton? ] unit-test
-
-[ f ] [ 1 3 [a,b) interval-singleton? ] unit-test
-
-[ f ] [ 1 1 (a,b) interval-singleton? ] unit-test
-
-[ 2 ] [ 1 3 [a,b) interval-length ] unit-test
-
-[ 0 ] [ f interval-length ] unit-test
-
-[ t ] [ 0 5 [a,b] 5 [a,a] interval<= ] unit-test
-
-[ incomparable ] [ 0 5 [a,b] 5 [a,a] interval< ] unit-test
-
-[ t ] [ 0 5 [a,b) 5 [a,a] interval< ] unit-test
-
-[ f ] [ 0 5 [a,b] -1 [a,a] interval< ] unit-test
-
-[ incomparable ] [ 0 5 [a,b] 1 [a,a] interval< ] unit-test
-
-[ t ] [ -1 1 (a,b) -1 [a,a] interval> ] unit-test
-
-[ t ] [ -1 1 (a,b) -1 [a,a] interval>= ] unit-test
-
-[ f ] [ -1 1 (a,b) -1 [a,a] interval< ] unit-test
-
-[ f ] [ -1 1 (a,b) -1 [a,a] interval<= ] unit-test
-
-[ t ] [ -1 1 (a,b] 1 [a,a] interval<= ] unit-test
-
-[ t ] [ -1 1 (a,b] 1 2 [a,b] interval<= ] unit-test
-
-[ incomparable ] [ -1 1 (a,b] 1 2 [a,b] interval>= ] unit-test
-
-[ incomparable ] [ -1 1 (a,b] 1 2 [a,b] interval> ] unit-test
-
-[ t ] [ -1 1 (a,b] 1 2 (a,b] interval<= ] unit-test
-
-[ f ] [ 0 10 [a,b] 0 [a,a] interval< ] unit-test
-
-[ f ] [ 0 10 [a,b] 10 [a,a] interval> ] unit-test
-
-[ incomparable ] [ 0 [a,a] 0 10 [a,b] interval< ] unit-test
-
-[ incomparable ] [ 10 [a,a] 0 10 [a,b] interval> ] unit-test
-
-[ t ] [ 0 [a,a] 0 10 [a,b] interval<= ] unit-test
-
-[ incomparable ] [ 0 [a,a] 0 10 [a,b] interval>= ] unit-test
-
-[ t ] [ 0 10 [a,b] 0 [a,a] interval>= ] unit-test
-
-[ t ] [
-    418
-    418 423 [a,b)
-    79 893 (a,b]
-    interval-max
-    interval-contains?
-] unit-test
-
-[ f ] [ 1 100 [a,b] -1 1 [a,b] interval/i ] unit-test
-
-! Interval random tester
-: random-element ( interval -- n )
-    dup interval-to first over interval-from first tuck - random +
-    2dup swap interval-contains? [
-        nip
-    ] [
-        drop random-element
-    ] if ;
-
-: random-interval ( -- interval )
-    1000 random dup 2 1000 random + +
-    1 random zero? [ [ neg ] bi@ swap ] when
-    4 random {
-        { 0 [ [a,b] ] }
-        { 1 [ [a,b) ] }
-        { 2 [ (a,b) ] }
-        { 3 [ (a,b] ] }
-    } case ;
-
-: random-op
-    {
-        { + interval+ }
-        { - interval- }
-        { * interval* }
-        { /i interval/i }
-        { shift interval-shift }
-        { min interval-min }
-        { max interval-max }
-    }
-    "math.ratios.private" vocab [
-        { / interval/ } suffix
-    ] when
-    random ;
-
-: interval-test
-    random-interval random-interval random-op ! 3dup . . .
-    0 pick interval-contains? over first { / /i } member? and [
-        3drop t
-    ] [
-        [ >r [ random-element ] bi@ ! 2dup . .
-        r> first execute ] 3keep
-        second execute interval-contains?
-    ] if ;
-
-[ t ] [ 40000 [ drop interval-test ] all? ] unit-test
-
-: random-comparison
-    {
-        { < interval< }
-        { <= interval<= }
-        { > interval> }
-        { >= interval>= }
-    } random ;
-
-: comparison-test
-    random-interval random-interval random-comparison
-    [ >r [ random-element ] bi@ r> first execute ] 3keep
-    second execute dup incomparable eq? [
-        2drop t
-    ] [
-        =
-    ] if ;
-
-[ t ] [ 40000 [ drop comparison-test ] all? ] unit-test
diff --git a/core/math/intervals/intervals.factor b/core/math/intervals/intervals.factor
deleted file mode 100755
index 324d628fd1..0000000000
--- a/core/math/intervals/intervals.factor
+++ /dev/null
@@ -1,244 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-! Based on Slate's src/unfinished/interval.slate by Brian Rice.
-USING: kernel sequences arrays math combinators math.order ;
-IN: math.intervals
-
-TUPLE: interval from to ;
-
-C: <interval> interval
-
-: open-point f 2array ;
-
-: closed-point t 2array ;
-
-: [a,b] ( a b -- interval )
-    >r closed-point r> closed-point <interval> ;
-
-: (a,b) ( a b -- interval )
-    >r open-point r> open-point <interval> ;
-
-: [a,b) ( a b -- interval )
-    >r closed-point r> open-point <interval> ;
-
-: (a,b] ( a b -- interval )
-    >r open-point r> closed-point <interval> ;
-
-: [a,a] ( a -- interval ) closed-point dup <interval> ;
-
-: [-inf,a] ( a -- interval ) -1./0. swap [a,b] ;
-
-: [-inf,a) ( a -- interval ) -1./0. swap [a,b) ;
-
-: [a,inf] ( a -- interval ) 1./0. [a,b] ;
-
-: (a,inf] ( a -- interval ) 1./0. (a,b] ;
-
-: compare-endpoints ( p1 p2 quot -- ? )
-    >r over first over first r> call [
-        2drop t
-    ] [
-        over first over first = [
-            swap second swap second not or
-        ] [
-            2drop f
-        ] if
-    ] if ; inline
-
-: endpoint< ( p1 p2 -- ? ) [ < ] compare-endpoints ;
-
-: endpoint<= ( p1 p2 -- ? ) [ endpoint< ] 2keep = or ;
-
-: endpoint> ( p1 p2 -- ? ) [ > ] compare-endpoints ;
-
-: endpoint>= ( p1 p2 -- ? ) [ endpoint> ] 2keep = or ;
-
-: endpoint-min ( p1 p2 -- p3 ) [ endpoint< ] most ;
-
-: endpoint-max ( p1 p2 -- p3 ) [ endpoint> ] most ;
-
-: interval>points ( int -- from to )
-    dup interval-from swap interval-to ;
-
-: points>interval ( seq -- interval )
-    dup first
-    [ [ endpoint-min ] reduce ] 2keep
-    [ endpoint-max ] reduce <interval> ;
-
-: (interval-op) ( p1 p2 quot -- p3 )
-    2over >r >r
-    >r [ first ] bi@ r> call
-    r> r> [ second ] both? 2array ; inline
-
-: interval-op ( i1 i2 quot -- i3 )
-    pick interval-from pick interval-from pick (interval-op) >r
-    pick interval-to pick interval-from pick (interval-op) >r
-    pick interval-to pick interval-to pick (interval-op) >r
-    pick interval-from pick interval-to pick (interval-op) >r
-    3drop r> r> r> r> 4array points>interval ; inline
-
-: interval+ ( i1 i2 -- i3 ) [ + ] interval-op ;
-
-: interval- ( i1 i2 -- i3 ) [ - ] interval-op ;
-
-: interval* ( i1 i2 -- i3 ) [ * ] interval-op ;
-
-: interval-integer-op ( i1 i2 quot -- i3 )
-    >r 2dup
-    [ interval>points [ first integer? ] both? ] both?
-    r> [ 2drop f ] if ; inline
-
-: interval-1+ ( i1 -- i2 ) 1 [a,a] interval+ ;
-
-: interval-1- ( i1 -- i2 ) -1 [a,a] interval+ ;
-
-: interval-neg ( i1 -- i2 ) -1 [a,a] interval* ;
-
-: interval-bitnot ( i1 -- i2 ) interval-neg interval-1- ;
-
-: interval-sq ( i1 -- i2 ) dup interval* ;
-
-: make-interval ( from to -- int )
-    over first over first {
-        { [ 2dup > ] [ 2drop 2drop f ] }
-        { [ 2dup = ] [
-            2drop over second over second and
-            [ <interval> ] [ 2drop f ] if
-        ] }
-        [ 2drop <interval> ]
-    } cond ;
-
-: interval-intersect ( i1 i2 -- i3 )
-    2dup and [
-        [ interval>points ] bi@ swapd
-        [ swap endpoint> ] most
-        >r [ swap endpoint< ] most r>
-        make-interval
-    ] [
-        or
-    ] if ;
-
-: interval-union ( i1 i2 -- i3 )
-    2dup and [
-        [ interval>points 2array ] bi@ append points>interval
-    ] [
-        2drop f
-    ] if ;
-
-: interval-subset? ( i1 i2 -- ? )
-    dupd interval-intersect = ;
-
-: interval-contains? ( x int -- ? )
-    >r [a,a] r> interval-subset? ;
-
-: interval-singleton? ( int -- ? )
-    interval>points
-    2dup [ second ] bi@ and
-    [ [ first ] bi@ = ]
-    [ 2drop f ] if ;
-
-: interval-length ( int -- n )
-    dup
-    [ interval>points [ first ] bi@ swap - ]
-    [ drop 0 ] if ;
-
-: interval-closure ( i1 -- i2 )
-    dup [ interval>points [ first ] bi@ [a,b] ] when ;
-
-: interval-shift ( i1 i2 -- i3 )
-    #! Inaccurate; could be tighter
-    [ [ shift ] interval-op ] interval-integer-op interval-closure ;
-
-: interval-shift-safe ( i1 i2 -- i3 )
-    dup interval-to first 100 > [
-        2drop f
-    ] [
-        interval-shift
-    ] if ;
-
-: interval-max ( i1 i2 -- i3 )
-    #! Inaccurate; could be tighter
-    [ max ] interval-op interval-closure ;
-
-: interval-min ( i1 i2 -- i3 )
-    #! Inaccurate; could be tighter
-    [ min ] interval-op interval-closure ;
-
-: interval-interior ( i1 -- i2 )
-    interval>points [ first ] bi@ (a,b) ;
-
-: interval-division-op ( i1 i2 quot -- i3 )
-    >r 0 over interval-closure interval-contains?
-    [ 2drop f ] r> if ; inline
-
-: interval/ ( i1 i2 -- i3 )
-    [ [ / ] interval-op ] interval-division-op ;
-
-: interval/i ( i1 i2 -- i3 )
-    [
-        [ [ /i ] interval-op ] interval-integer-op
-    ] interval-division-op interval-closure ;
-
-: interval-recip ( i1 -- i2 ) 1 [a,a] swap interval/ ;
-
-: interval-2/ ( i1 -- i2 ) -1 [a,a] interval-shift ;
-
-SYMBOL: incomparable
-
-: left-endpoint-< ( i1 i2 -- ? )
-    [ swap interval-subset? ] 2keep
-    [ nip interval-singleton? ] 2keep
-    [ interval-from ] bi@ =
-    and and ;
-
-: right-endpoint-< ( i1 i2 -- ? )
-    [ interval-subset? ] 2keep
-    [ drop interval-singleton? ] 2keep
-    [ interval-to ] bi@ =
-    and and ;
-
-: (interval<) over interval-from over interval-from endpoint< ;
-
-: interval< ( i1 i2 -- ? )
-    {
-        { [ 2dup interval-intersect not ] [ (interval<) ] }
-        { [ 2dup left-endpoint-< ] [ f ] }
-        { [ 2dup right-endpoint-< ] [ f ] }
-        [ incomparable ]
-    } cond 2nip ;
-
-: left-endpoint-<= ( i1 i2 -- ? )
-    >r interval-from r> interval-to = ;
-
-: right-endpoint-<= ( i1 i2 -- ? )
-    >r interval-to r> interval-from = ;
-
-: interval<= ( i1 i2 -- ? )
-    {
-        { [ 2dup interval-intersect not ] [ (interval<) ] }
-        { [ 2dup right-endpoint-<= ] [ t ] }
-        [ incomparable ]
-    } cond 2nip ;
-
-: interval> ( i1 i2 -- ? )
-    swap interval< ;
-
-: interval>= ( i1 i2 -- ? )
-    swap interval<= ;
-
-: assume< ( i1 i2 -- i3 )
-    interval-to first [-inf,a) interval-intersect ;
-
-: assume<= ( i1 i2 -- i3 )
-    interval-to first [-inf,a] interval-intersect ;
-
-: assume> ( i1 i2 -- i3 )
-    interval-from first (a,inf] interval-intersect ;
-
-: assume>= ( i1 i2 -- i3 )
-    interval-to first [a,inf] interval-intersect ;
-
-: integral-closure ( i1 -- i2 )
-    dup interval-from first2 [ 1+ ] unless
-    swap interval-to first2 [ 1- ] unless
-    [a,b] ;
diff --git a/core/math/math-docs.factor b/core/math/math-docs.factor
index b15f09e49d..b38baa5cc9 100755
--- a/core/math/math-docs.factor
+++ b/core/math/math-docs.factor
@@ -26,7 +26,9 @@ $nl
 { $subsection < }
 { $subsection <= }
 { $subsection > }
-{ $subsection >= } ;
+{ $subsection >= }
+"Numbers can be compared for equality using " { $link = } ", or a less precise test which disregards types:"
+{ $subsection number= } ;
 
 ARTICLE: "modular-arithmetic" "Modular arithmetic"
 { $subsection mod }
@@ -60,8 +62,12 @@ ABOUT: "arithmetic"
 
 HELP: number=
 { $values { "x" number } { "y" number } { "?" "a boolean" } }
-{ $description "Tests if two numbers have the same numerical value. If either input is not a number, outputs " { $link f } "." }
-{ $notes "Do not call this word directly. Calling " { $link = } " has the same effect and is more concise." } ;
+{ $description "Tests if two numbers have the same numeric value." }
+{ $notes "This word differs from " { $link = } " in that it disregards differences in type when comparing numbers." }
+{ $examples
+    { $example "USING: math prettyprint ;" "3.0 3 number= ." "t" }
+    { $example "USING: kernel math prettyprint ;" "3.0 3 = ." "f" }
+} ;
 
 HELP: <
 { $values { "x" real } { "y" real } { "?" "a boolean" } }
@@ -130,38 +136,27 @@ HELP: /
 { $see-also "division-by-zero" } ;
 
 HELP: /i
-{ $values { "x" real } { "y" real } { "z" real } }
+{ $values { "x" real } { "y" real } { "z" integer } }
 { $description
     "Divides " { $snippet "x" } " by " { $snippet "y" } ", truncating the result to an integer."
-    { $list
-        "Integer division of fixnums may overflow and yield a bignum."
-        "Integer division of bignums always yields a bignum."
-        "Integer division of floats always yields a float."
-        "Integer division of ratios and complex numbers proceeds using the relevant mathematical rules."
-    }
 }
 { $see-also "division-by-zero" } ;
 
 HELP: /f
-{ $values { "x" real } { "y" real } { "z" real } }
+{ $values { "x" real } { "y" real } { "z" float } }
 { $description
     "Divides " { $snippet "x" } " by " { $snippet "y" } ", representing the result as a floating point number."
-    { $list 
-        "Integer division of fixnums may overflow and yield a bignum."
-        "Integer division of bignums always yields a bignum."            
-        "Integer division of floats always yields a float."
-        "Integer division of ratios and complex numbers proceeds using the relevant mathematical rules."
-    }
 }
 { $see-also "division-by-zero" } ;
 
 HELP: mod
-{ $values { "x" integer } { "y" integer } { "z" integer } }
+{ $values { "x" rational } { "y" rational } { "z" rational } }
 { $description
     "Computes the remainder of dividing " { $snippet "x" } " by " { $snippet "y" } ", with the remainder being negative if " { $snippet "x" } " is negative."
     { $list 
         "Modulus of fixnums always yields a fixnum."
-        "Modulus of bignums always yields a bignum."            
+        "Modulus of bignums always yields a bignum."    
+        { "Modulus of rationals always yields a rational. In this case, the remainder is computed using the formula " { $snippet "x - (x mod y) * y" } "." }
     }
 }
 { $see-also "division-by-zero" rem } ;
@@ -223,7 +218,7 @@ HELP: bit?
 
 HELP: log2
 { $values { "x" "a positive integer" } { "n" integer } }
-{ $description "Outputs the largest integer " { $snippet "n" } " such that " { $snippet "2^n" } " is less than " { $snippet "x" } "." }
+{ $description "Outputs the largest integer " { $snippet "n" } " such that " { $snippet "2^n" } " is less than or equal to " { $snippet "x" } "." }
 { $errors "Throws an error if " { $snippet "x" } " is zero or negative." } ;
 
 HELP: 1+
@@ -254,12 +249,13 @@ HELP: recip
 { $errors "Throws an error if " { $snippet "x" } " is the integer 0." } ;
 
 HELP: rem
-{ $values { "x" integer } { "y" integer } { "z" integer } }
+{ $values { "x" rational } { "y" rational } { "z" rational } }
 { $description
     "Computes the remainder of dividing " { $snippet "x" } " by " { $snippet "y" } ", with the remainder always positive."
     { $list 
-        "Modulus of fixnums always yields a fixnum."
-        "Modulus of bignums always yields a bignum."            
+        "Given fixnums, always yields a fixnum."
+        "Given bignums, always yields a bignum."
+        "Given rationals, always yields a rational."    
     }
 }
 { $see-also "division-by-zero" mod } ;
@@ -296,19 +292,37 @@ HELP: zero?
 HELP: times
 { $values { "n" integer } { "quot" quotation } }
 { $description "Calls the quotation " { $snippet "n" } " times." }
-{ $notes "If you need to pass the current index to the quotation, use " { $link each } "." } ;
+{ $notes "If you need to pass the current index to the quotation, use " { $link each } "." }
+{ $examples
+    { $example "USING: io math ;" "3 [ \"Hi\" print ] times" "Hi\nHi\nHi" }
+} ;
 
 HELP: fp-nan?
 { $values { "x" real } { "?" "a boolean" } }
 { $description "Tests if " { $snippet "x" } " is an IEEE Not-a-Number value. While " { $snippet "x" } " can be any real number, this word will only ever yield true if " { $snippet "x" } " is a " { $link float } "." } ;
 
-HELP: real-part ( z -- x )
-{ $values { "z" number } { "x" real } }
-{ $description "Outputs the real part of a complex number. This acts as the identity on real numbers." } ;
+HELP: fp-infinity?
+{ $values { "x" real } { "?" "a boolean" } }
+{ $description "Tests if " { $snippet "x" } " is an IEEE Infinity value. While " { $snippet "x" } " can be any real number, this word will only ever yield true if " { $snippet "x" } " is a " { $link float } "." }
+{ $examples
+    { $example "USING: math prettyprint ;" "1/0. fp-infinity? ." "t" }
+    { $example "USING: io kernel math ;" "-1/0. [ fp-infinity? ] [ 0 < ] bi [ \"negative infinity\" print ] when" "negative infinity" }
+} ;
 
-HELP: imaginary-part ( z -- y )
+{ fp-nan? fp-infinity? } related-words
+
+HELP: real-part
+{ $values { "z" number } { "x" real } }
+{ $description "Outputs the real part of a complex number. This acts as the identity on real numbers." }
+{ $examples { $example "USING: math prettyprint ; C{ 1 2 } real-part ." "1" } } ;
+
+HELP: imaginary-part
 { $values { "z" number } { "y" real } }
-{ $description "Outputs the imaginary part of a complex number. This outputs zero for real numbers." } ;
+{ $description "Outputs the imaginary part of a complex number. This outputs zero for real numbers." }
+{ $examples
+    { $example "USING: math prettyprint ; C{ 1 2 } imaginary-part ." "2" }
+    { $example "USING: math prettyprint ; 3 imaginary-part ." "0" }
+} ;
 
 HELP: real
 { $class-description "The class of real numbers, which is a disjoint union of rationals and floats." } ;
diff --git a/core/math/math-tests.factor b/core/math/math-tests.factor
index fcd3b929ea..d72bb67970 100644
--- a/core/math/math-tests.factor
+++ b/core/math/math-tests.factor
@@ -9,3 +9,10 @@ IN: math.tests
 [ [ 0 1 2 3 4 ] ] [ [ 5 [ , ] each-integer ] [ ] make ] unit-test
 [ [ ] ] [ [ -1 [ , ] each-integer ] [ ] make ] unit-test
 
+[ f ] [ 1/0. fp-nan? ] unit-test
+[ f ] [ -1/0. fp-nan? ] unit-test
+[ t ] [ -0/0. fp-nan? ] unit-test
+
+[ t ] [ 1/0. fp-infinity? ] unit-test
+[ t ] [ -1/0. fp-infinity? ] unit-test
+[ f ] [ -0/0. fp-infinity? ] unit-test
diff --git a/core/math/math.factor b/core/math/math.factor
index 0218ded6ff..6efdd53825 100755
--- a/core/math/math.factor
+++ b/core/math/math.factor
@@ -1,13 +1,19 @@
-! Copyright (C) 2003, 2007 Slava Pestov.
+! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math.private ;
 IN: math
 
-GENERIC: >fixnum ( x -- y ) foldable
-GENERIC: >bignum ( x -- y ) foldable
-GENERIC: >integer ( x -- y ) foldable
+GENERIC: >fixnum ( x -- n ) foldable
+GENERIC: >bignum ( x -- n ) foldable
+GENERIC: >integer ( x -- n ) foldable
 GENERIC: >float ( x -- y ) foldable
 
+GENERIC: numerator ( a/b -- a )
+GENERIC: denominator ( a/b -- b )
+
+GENERIC: real-part ( z -- x )
+GENERIC: imaginary-part ( z -- y )
+
 MATH: number= ( x y -- ? ) foldable
 
 M: object number= 2drop f ;
@@ -60,7 +66,7 @@ PRIVATE>
 
 : ?1+ [ 1+ ] [ 0 ] if* ; inline
 
-: rem ( x y -- z ) tuck mod over + swap mod ; foldable
+: rem ( x y -- z ) abs tuck mod over + swap mod ; foldable
 
 : 2^ ( n -- 2^n ) 1 swap shift ; inline
 
@@ -76,18 +82,26 @@ UNION: real rational float ;
 
 UNION: number real complex ;
 
-M: number equal? number= ;
-
-M: real hashcode* nip >fixnum ;
-
 GENERIC: fp-nan? ( x -- ? )
 
 M: object fp-nan?
     drop f ;
 
 M: float fp-nan?
-    double>bits -51 shift BIN: 111111111111 [ bitand ] keep
-    number= ;
+    double>bits -51 shift HEX: fff [ bitand ] keep = ;
+
+GENERIC: fp-infinity? ( x -- ? )
+
+M: object fp-infinity?
+    drop f ;
+
+M: float fp-infinity? ( float -- ? )
+    double>bits
+    dup -52 shift HEX: 7ff [ bitand ] keep = [
+        HEX: fffffffffffff bitand 0 =
+    ] [
+        drop f
+    ] if ;
 
 : (next-power-of-2) ( i n -- n )
     2dup >= [
@@ -118,21 +132,21 @@ M: float fp-nan?
 
 PRIVATE>
 
-: (each-integer) ( i n quot -- )
+: (each-integer) ( i n quot: ( i -- ) -- )
     [ iterate-step iterate-next (each-integer) ]
-    [ 3drop ] if-iterate? ; inline
+    [ 3drop ] if-iterate? ; inline recursive
 
-: (find-integer) ( i n quot -- i )
+: (find-integer) ( i n quot: ( i -- ? ) -- i )
     [
         iterate-step roll
         [ 2drop ] [ iterate-next (find-integer) ] if
-    ] [ 3drop f ] if-iterate? ; inline
+    ] [ 3drop f ] if-iterate? ; inline recursive
 
-: (all-integers?) ( i n quot -- ? )
+: (all-integers?) ( i n quot: ( i -- ? ) -- ? )
     [
         iterate-step roll
         [ iterate-next (all-integers?) ] [ 3drop f ] if
-    ] [ 3drop t ] if-iterate? ; inline
+    ] [ 3drop t ] if-iterate? ; inline recursive
 
 : each-integer ( n quot -- )
     iterate-prep (each-integer) ; inline
@@ -146,7 +160,7 @@ PRIVATE>
 : all-integers? ( n quot -- ? )
     iterate-prep (all-integers?) ; inline
 
-: find-last-integer ( n quot -- i )
+: find-last-integer ( n quot: ( i -- ? ) -- i )
     over 0 < [
         2drop f
     ] [
@@ -155,4 +169,4 @@ PRIVATE>
         ] [
             >r 1- r> find-last-integer
         ] if
-    ] if ; inline
+    ] if ; inline recursive
diff --git a/core/math/order/order-docs.factor b/core/math/order/order-docs.factor
index 23ea1058ad..65edbdaaae 100644
--- a/core/math/order/order-docs.factor
+++ b/core/math/order/order-docs.factor
@@ -3,9 +3,9 @@ math.private words ;
 IN: math.order
 
 HELP: <=>
-{ $values { "obj1" object } { "obj2" object } { "symbol" symbol } }
+{ $values { "obj1" object } { "obj2" object } { "<=>" "an ordering specifier" } }
 { $contract
-    "Compares two objects using an intrinsic total order, for example, the natural order for real numbers and lexicographic order for strings."
+    "Compares two objects using an intrinsic linear order, for example, the natural order for real numbers and lexicographic order for strings."
     $nl
     "The output value is one of the following:"
     { $list
@@ -16,23 +16,23 @@ HELP: <=>
 } ;
 
 HELP: +lt+
-{ $description "Returned by " { $link <=> } " when the first object is strictly less than the second object." } ;
+{ $description "Output by " { $link <=> } " when the first object is strictly less than the second object." } ;
 
 HELP: +eq+
-{ $description "Returned by " { $link <=> } " when the first object is equal to the second object." } ;
+{ $description "Output by " { $link <=> } " when the first object is equal to the second object." } ;
 
 HELP: +gt+
-{ $description "Returned by " { $link <=> } " when the first object is strictly greater than the second object." } ;
+{ $description "Output by " { $link <=> } " when the first object is strictly greater than the second object." } ;
 
 HELP: invert-comparison
-{ $values { "symbol" symbol }
-          { "new-symbol" symbol } }
-{ $description "Invert the comparison symbol returned by " { $link <=> } ". The output for the symbol " { $snippet "+eq+" } " is itself." }
+{ $values { "<=>" symbol }
+          { "<=>'" symbol } }
+{ $description "Invert the comparison symbol returned by " { $link <=> } "." }
 { $examples
     { $example "USING: math.order prettyprint ;" "+lt+ invert-comparison ." "+gt+" } } ;
 
 HELP: compare
-{ $values { "obj1" object } { "obj2" object } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } { "symbol" "a comparison symbol, +lt+, +eq+, or +gt+" } }
+{ $values { "obj1" object } { "obj2" object } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } { "<=>" "an ordering specifier" } }
 { $description "Compares the results of applying the quotation to both objects via " { $link <=> } "." }
 { $examples { $example "USING: kernel math.order prettyprint sequences ;" "\"hello\" \"hi\" [ length ] compare ." "+gt+" }
 } ;
@@ -76,19 +76,24 @@ HELP: [-]
 { $values { "x" real } { "y" real } { "z" real } }
 { $description "Subtracts " { $snippet "y" } " from " { $snippet "x" } ". If the result is less than zero, outputs zero." } ;
 
-ARTICLE: "math.order" "Ordered objects"
+ARTICLE: "order-specifiers" "Ordering specifiers"
+"Ordering words such as " { $link <=> } " output one of the following values, indicating that of two objects being compared, the first is less than the second, the two are equal, or that the first is greater than the second:"
+{ $subsection +lt+ }
+{ $subsection +eq+ }
+{ $subsection +gt+ } ;
+    
+ARTICLE: "math.order" "Linear order protocol"
 "Some classes have an intrinsic order amongst instances:"
 { $subsection <=> }
 { $subsection compare }
 { $subsection invert-comparison }
-"The above words return one of the following symbols:"
-{ $subsection +lt+ }
-{ $subsection +eq+ }
-{ $subsection +gt+ }
+"The above words output order specifiers."
+{ $subsection "order-specifiers" }
 "Utilities for comparing objects:"
 { $subsection after? }
 { $subsection before? }
 { $subsection after=? }
-{ $subsection before=? } ;
+{ $subsection before=? }
+{ $see-also "sequences-sorting" } ;
 
 ABOUT: "math.order"
diff --git a/core/math/order/order.factor b/core/math/order/order.factor
index 76fe058ffa..aae5841185 100644
--- a/core/math/order/order.factor
+++ b/core/math/order/order.factor
@@ -7,11 +7,11 @@ SYMBOL: +lt+
 SYMBOL: +eq+
 SYMBOL: +gt+
 
-: invert-comparison ( symbol -- new-symbol )
+: invert-comparison ( <=> -- <=>' )
     #! Can't use case, index or nth here
     dup +lt+ eq? [ drop +gt+ ] [ +eq+ eq? +eq+ +lt+ ? ] if ;
 
-GENERIC: <=> ( obj1 obj2 -- symbol )
+GENERIC: <=> ( obj1 obj2 -- <=> )
 
 M: real <=> 2dup < [ 2drop +lt+ ] [ number= +eq+ +gt+ ? ] if ;
 
@@ -38,4 +38,4 @@ M: real after=? ( obj1 obj2 -- ? ) >= ;
 
 : [-] ( x y -- z ) - 0 max ; inline
 
-: compare ( obj1 obj2 quot -- symbol ) bi@ <=> ; inline
+: compare ( obj1 obj2 quot -- <=> ) bi@ <=> ; inline
diff --git a/core/math/parser/parser-tests.factor b/core/math/parser/parser-tests.factor
index 15234ee310..cee2314d07 100755
--- a/core/math/parser/parser-tests.factor
+++ b/core/math/parser/parser-tests.factor
@@ -77,10 +77,6 @@ unit-test
 [ "-101.0e-2" string>number number>string ]
 unit-test
 
-[ 5.0 ]
-[ "10.0/2" string>number ]
-unit-test
-
 [ f ]
 [ "1e1/2" string>number ]
 unit-test
@@ -104,3 +100,11 @@ unit-test
 [ "1.0/0.0" ] [ 1.0 0.0 / number>string ] unit-test
 
 [ "-1.0/0.0" ] [ -1.0 0.0 / number>string ] unit-test
+
+[ t ] [ "0/0." string>number fp-nan? ] unit-test
+
+[ 1.0/0.0 ] [ "1/0." string>number ] unit-test
+
+[ -1.0/0.0 ] [ "-1/0." string>number ] unit-test
+
+[ "-0.0" ] [ -0.0 number>string ] unit-test
diff --git a/core/math/parser/parser.factor b/core/math/parser/parser.factor
index d1b8e6fd37..05e267f035 100755
--- a/core/math/parser/parser.factor
+++ b/core/math/parser/parser.factor
@@ -43,7 +43,7 @@ DEFER: base>
 SYMBOL: radix
 SYMBOL: negative?
 
-: sign negative? get "-" "+" ? ;
+: sign ( -- str ) negative? get "-" "+" ? ;
 
 : with-radix ( radix quot -- )
     radix swap with-variable ; inline
@@ -55,8 +55,9 @@ SYMBOL: negative?
     dup [ (base>) ] [ drop 0 swap ] if ;
 
 : string>ratio ( str -- a/b )
+    "-" ?head dup negative? set swap
     "/" split1 (base>) >r whole-part r>
-    3dup and and [ / + ] [ 3drop f ] if ;
+    3dup and and [ / + swap [ neg ] when ] [ 2drop 2drop f ] if ;
 
 : valid-digits? ( seq -- ? )
     {
@@ -66,20 +67,23 @@ SYMBOL: negative?
     } cond ;
 
 : string>integer ( str -- n/f )
+    "-" ?head swap
     string>digits dup valid-digits?
-    [ radix get digits>integer ] [ drop f ] if ;
+    [ radix get digits>integer swap [ neg ] when ] [ 2drop f ] if ;
 
 PRIVATE>
 
 : base> ( str radix -- n/f )
     [
-        "-" ?head dup negative? set >r
-        {
-            { [ CHAR: / over member? ] [ string>ratio ] }
-            { [ CHAR: . over member? ] [ string>float ] }
-            [ string>integer ]
-        } cond
-        r> [ dup [ neg ] when ] when
+        CHAR: / over member? [
+            string>ratio
+        ] [
+            CHAR: . over member? [
+                string>float
+            ] [
+                string>integer
+            ] if
+        ] if
     ] with-radix ;
 
 : string>number ( str -- n/f ) 10 base> ;
@@ -92,8 +96,8 @@ PRIVATE>
 
 : integer, ( num radix -- )
     dup 1 <= [ "Invalid radix" throw ] when
-    dup >r /mod >digit , dup 0 >
-    [ r> integer, ] [ r> 2drop ] if ;
+    [ /mod >digit , ] keep over 0 >
+    [ integer, ] [ 2drop ] if ;
 
 PRIVATE>
 
@@ -143,6 +147,7 @@ M: float >base
         { [ dup fp-nan? ] [ drop "0.0/0.0" ] }
         { [ dup 1.0/0.0 = ] [ drop "1.0/0.0" ] }
         { [ dup -1.0/0.0 = ] [ drop "-1.0/0.0" ] }
+        { [ dup double>bits HEX: 8000000000000000 = ] [ drop "-0.0" ] }
         [ float>string fix-float ]
     } cond ;
 
diff --git a/core/memory/memory-docs.factor b/core/memory/memory-docs.factor
index 38f39ec588..506ae43671 100755
--- a/core/memory/memory-docs.factor
+++ b/core/memory/memory-docs.factor
@@ -7,9 +7,12 @@ ARTICLE: "images" "Images"
 { $subsection save-image }
 { $subsection save-image-and-exit }
 "To start Factor with a custom image, use the " { $snippet "-i=" { $emphasis "image" } } " command line switch; see " { $link "runtime-cli-args" } "."
-{ $see-also "tools.memory" } ;
+$nl
+"New images can be created from scratch:"
+{ $subsection "bootstrap.image" }
+{ $see-also "tools.memory" "tools.deploy" } ;
 
-ABOUT: "image"
+ABOUT: "images"
 
 HELP: begin-scan ( -- )
 { $description "Moves all objects to tenured space, disables the garbage collector, and resets the heap scan pointer to point at the first object in the heap. The " { $link next-object } " word can then be called to advance the heap scan pointer and return successive objects."
diff --git a/core/memory/memory-tests.factor b/core/memory/memory-tests.factor
index 2b5b1333c0..9fded3eb3a 100755
--- a/core/memory/memory-tests.factor
+++ b/core/memory/memory-tests.factor
@@ -3,6 +3,8 @@ sequences tools.test words namespaces layouts classes
 classes.builtin arrays quotations ;
 IN: memory.tests
 
+[ [ ] instances ] must-infer
+
 ! Code GC wasn't kicking in when needed
 : leak-step 800000 f <array> 1quotation call drop ;
 
@@ -23,3 +25,6 @@ TUPLE: testing x y z ;
         ] when*
     ] each
 ] unit-test
+
+! Erg's bug
+2 [ [ [ 3 throw ] instances ] must-fail ] times
diff --git a/core/memory/memory.factor b/core/memory/memory.factor
index 0d684c3261..42527371f2 100644
--- a/core/memory/memory.factor
+++ b/core/memory/memory.factor
@@ -1,18 +1,22 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
+USING: kernel continuations sequences vectors arrays system math ;
 IN: memory
-USING: arrays kernel sequences vectors system hashtables
-kernel.private sbufs growable assocs namespaces quotations
-math strings combinators ;
 
-: (each-object) ( quot -- )
-    next-object dup
-    [ swap [ call ] keep (each-object) ] [ 2drop ] if ; inline
+: (each-object) ( quot: ( obj -- ) -- )
+    [ next-object dup ] swap [ drop ] while ; inline
 
 : each-object ( quot -- )
-    begin-scan (each-object) end-scan ; inline
+    begin-scan [ (each-object) ] [ end-scan ] [ ] cleanup ; inline
+
+: count-instances ( quot -- n )
+    0 swap [ 1 0 ? + ] compose each-object ; inline
 
 : instances ( quot -- seq )
-    pusher >r each-object r> >array ; inline
+    #! To ensure we don't need to grow the vector while scanning
+    #! the heap, we do two scans, the first one just counts the
+    #! number of objects that satisfy the predicate.
+    [ count-instances 100 + <vector> ] keep swap
+    [ [ push-if ] 2curry each-object ] keep >array ; inline
 
 : save ( -- ) image save-image ;
diff --git a/core/mirrors/mirrors-tests.factor b/core/mirrors/mirrors-tests.factor
deleted file mode 100755
index 45970c8bae..0000000000
--- a/core/mirrors/mirrors-tests.factor
+++ /dev/null
@@ -1,28 +0,0 @@
-USING: mirrors tools.test assocs kernel arrays accessors ;
-IN: mirrors.tests
-
-TUPLE: foo bar baz ;
-
-C: <foo> foo
-
-[ { "delegate" "bar" "baz" } ] [ 1 2 <foo> <mirror> keys ] unit-test
-
-[ 1 t ] [ "bar" 1 2 <foo> <mirror> at* ] unit-test
-
-[ f f ] [ "hi" 1 2 <foo> <mirror> at* ] unit-test
-
-[ 3 ] [
-    3 "baz" 1 2 <foo> [ <mirror> set-at ] keep foo-baz
-] unit-test
-
-[ 3 "hi" 1 2 <foo> <mirror> set-at ] [
-    [ no-such-slot? ]
-    [ name>> "hi" = ]
-    [ object>> foo? ] tri and and
-] must-fail-with
-
-[ 3 "numerator" 1/2 <mirror> set-at ] [
-    [ immutable-slot? ]
-    [ name>> "numerator" = ]
-    [ object>> 1/2 = ] tri and and
-] must-fail-with
diff --git a/core/mirrors/mirrors.factor b/core/mirrors/mirrors.factor
deleted file mode 100755
index 0a49163075..0000000000
--- a/core/mirrors/mirrors.factor
+++ /dev/null
@@ -1,61 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: assocs hashtables kernel sequences generic words
-arrays classes slots slots.private classes.tuple math vectors
-quotations sorting prettyprint accessors ;
-IN: mirrors
-
-: all-slots ( class -- slots )
-    superclasses [ "slots" word-prop ] map concat ;
-
-: object-slots ( obj -- seq )
-    class all-slots ;
-
-TUPLE: mirror object slots ;
-
-: <mirror> ( object -- mirror )
-    dup object-slots mirror boa ;
-
-ERROR: no-such-slot object name ;
-
-ERROR: immutable-slot object name ;
-
-M: mirror at*
-    [ nip object>> ] [ slots>> slot-named ] 2bi
-    dup [ offset>> slot t ] [ 2drop f f ] if ;
-
-M: mirror set-at ( val key mirror -- )
-    [ nip object>> ] [ drop ] [ slots>> slot-named ] 2tri dup [
-        dup writer>> [
-            nip offset>> set-slot
-        ] [
-            drop immutable-slot
-        ] if
-    ] [
-        drop no-such-slot
-    ] if ;
-
-M: mirror delete-at ( key mirror -- )
-    f -rot set-at ;
-
-M: mirror >alist ( mirror -- alist )
-    [ slots>> [ name>> ] map ]
-    [ [ object>> ] [ slots>> ] bi [ offset>> slot ] with map ] bi
-    zip ;
-
-M: mirror assoc-size mirror-slots length ;
-
-INSTANCE: mirror assoc
-
-: sort-assoc ( assoc -- alist )
-    >alist
-    [ [ first unparse-short ] keep ] { } map>assoc
-    sort-keys values ;
-
-GENERIC: make-mirror ( obj -- assoc )
-M: hashtable make-mirror sort-assoc ;
-M: integer make-mirror drop f ;
-M: array make-mirror <enum> ;
-M: vector make-mirror <enum> ;
-M: quotation make-mirror <enum> ;
-M: object make-mirror <mirror> ;
diff --git a/core/optimizer/backend/backend.factor b/core/optimizer/backend/backend.factor
deleted file mode 100755
index 9b70ccdd9d..0000000000
--- a/core/optimizer/backend/backend.factor
+++ /dev/null
@@ -1,117 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic assocs inference inference.class
-inference.dataflow inference.backend inference.state io kernel
-math namespaces sequences vectors words quotations hashtables
-combinators classes optimizer.def-use accessors ;
-IN: optimizer.backend
-
-SYMBOL: class-substitutions
-
-SYMBOL: literal-substitutions
-
-SYMBOL: value-substitutions
-
-SYMBOL: optimizer-changed
-
-GENERIC: optimize-node* ( node -- node/t changed? )
-
-: ?union ( assoc assoc/f -- assoc' )
-    dup assoc-empty? [ drop ] [ swap assoc-union ] if ;
-
-: add-node-literals ( node assoc -- )
-    [ ?union ] curry change-literals drop ;
-
-: add-node-classes ( node assoc -- )
-    [ ?union ] curry change-classes drop ;
-
-: substitute-values ( node assoc -- )
-    dup assoc-empty? [
-        2drop
-    ] [
-        {
-            [ >r  in-d>> r> substitute-here ]
-            [ >r  in-r>> r> substitute-here ]
-            [ >r out-d>> r> substitute-here ]
-            [ >r out-r>> r> substitute-here ]
-        } 2cleave
-    ] if ;
-
-: perform-substitutions ( node -- )
-    [   class-substitutions get add-node-classes  ]
-    [ literal-substitutions get add-node-literals ]
-    [   value-substitutions get substitute-values ]
-    tri ;
-
-DEFER: optimize-nodes
-
-: optimize-children ( node -- )
-    [ optimize-nodes ] map-children ;
-
-: optimize-node ( node -- node )
-    dup [
-        dup perform-substitutions
-        dup optimize-node* [
-            nip optimizer-changed on optimize-node
-        ] [
-            dup t eq? [
-                drop dup optimize-children
-            ] [
-                nip optimize-node
-            ] if
-        ] if
-    ] when ;
-
-: optimize-nodes ( node -- newnode )
-    [
-        class-substitutions [ clone ] change
-        literal-substitutions [ clone ] change
-        [ optimize-node ] transform-nodes
-        optimizer-changed get
-    ] with-scope optimizer-changed set ;
-
-M: node optimize-node* drop t f ;
-
-! Post-inlining cleanup
-: follow ( key assoc -- value )
-    2dup at* [ swap follow nip ] [ 2drop ] if ;
-
-: union* ( assoc1 assoc2 -- assoc )
-    assoc-union [ keys ] keep
-    [ dupd follow ] curry
-    H{ } map>assoc ;
-
-: update* ( assoc1 assoc2 -- )
-    #! Not very efficient.
-    dupd union* update ;
-
-: compute-value-substitutions ( #call/#merge #return/#values -- assoc )
-    [ out-d>> ] [ in-d>> ] bi* 2array unify-lengths flip
-    [ = not ] assoc-filter >hashtable ;
-
-: cleanup-inlining ( #return/#values -- newnode changed? )
-    dup node-successor [
-        [ node-successor ] keep
-        {
-            [ nip classes>> class-substitutions get swap update ]
-            [ nip literals>> literal-substitutions get swap update ]
-            [ compute-value-substitutions value-substitutions get swap update* ]
-            [ drop node-successor ]
-        } 2cleave t
-    ] [
-        drop t f
-    ] if ;
-
-! #return
-M: #return optimize-node* cleanup-inlining ;
-
-! #values
-M: #values optimize-node* cleanup-inlining ;
-
-M: f set-node-successor 2drop ;
-
-: splice-node ( old new -- )
-    dup splice-def-use last-node set-node-successor ;
-
-: drop-inputs ( node -- #shuffle )
-    node-in-d clone \ #shuffle in-node ;
diff --git a/core/optimizer/backend/summary.txt b/core/optimizer/backend/summary.txt
deleted file mode 100644
index 78a4ac6048..0000000000
--- a/core/optimizer/backend/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Dataflow IR optimizer implementation
diff --git a/core/optimizer/collect/collect.factor b/core/optimizer/collect/collect.factor
deleted file mode 100644
index 6b9aee4e1a..0000000000
--- a/core/optimizer/collect/collect.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: inference.dataflow inference.backend kernel ;
-IN: optimizer
-
-: collect-label-infos ( node -- node )
-    dup [
-        dup #label? [ collect-label-info ] [ drop ] if
-    ] each-node ;
-
diff --git a/core/optimizer/control/control-tests.factor b/core/optimizer/control/control-tests.factor
deleted file mode 100755
index 9c6d041bca..0000000000
--- a/core/optimizer/control/control-tests.factor
+++ /dev/null
@@ -1,181 +0,0 @@
-IN: optimizer.control.tests
-USING: tools.test optimizer.control combinators kernel
-sequences inference.dataflow math inference classes strings
-optimizer ;
-
-: label-is-loop? ( node word -- ? )
-    [
-        {
-            { [ over #label? not ] [ 2drop f ] }
-            { [ over #label-word over eq? not ] [ 2drop f ] }
-            { [ over #label-loop? not ] [ 2drop f ] }
-            [ 2drop t ]
-        } cond
-    ] curry node-exists? ;
-
-: label-is-not-loop? ( node word -- ? )
-    [
-        {
-            { [ over #label? not ] [ f ] }
-            { [ over #label-word over eq? not ] [ f ] }
-            { [ over #label-loop? ] [ f ] }
-            [ t ]
-        } cond 2nip
-    ] curry node-exists? ;
-
-: loop-test-1 ( a -- )
-    dup [ 1+ loop-test-1 ] [ drop ] if ; inline
-                          
-[ t ] [
-    [ loop-test-1 ] dataflow detect-loops
-    \ loop-test-1 label-is-loop?
-] unit-test
-
-[ t ] [
-    [ loop-test-1 1 2 3 ] dataflow detect-loops
-    \ loop-test-1 label-is-loop?
-] unit-test
-
-[ t ] [
-    [ [ loop-test-1 ] each ] dataflow detect-loops
-    \ loop-test-1 label-is-loop?
-] unit-test
-
-[ t ] [
-    [ [ loop-test-1 ] each ] dataflow detect-loops
-    \ (each-integer) label-is-loop?
-] unit-test
-
-: loop-test-2 ( a -- )
-    dup [ 1+ loop-test-2 1- ] [ drop ] if ; inline
-
-[ t ] [
-    [ loop-test-2 ] dataflow detect-loops
-    \ loop-test-2 label-is-not-loop?
-] unit-test
-
-: loop-test-3 ( a -- )
-    dup [ [ loop-test-3 ] each ] [ drop ] if ; inline
-
-[ t ] [
-    [ loop-test-3 ] dataflow detect-loops
-    \ loop-test-3 label-is-not-loop?
-] unit-test
-
-: loop-test-4 ( a -- )
-    dup [
-        loop-test-4
-    ] [
-        drop
-    ] if ; inline
-
-: find-label ( node -- label )
-    dup #label? [ node-successor find-label ] unless ;
-
-: test-loop-exits
-    dataflow detect-loops find-label
-    dup node-param swap
-    [ node-child find-tail find-loop-exits [ class ] map ] keep
-    #label-loop? ;
-
-[ { #values } t ] [
-    [ loop-test-4 ] test-loop-exits
-] unit-test
-
-: loop-test-5 ( a -- )
-    dup [
-        dup string? [
-            loop-test-5
-        ] [
-            drop
-        ] if
-    ] [
-        drop
-    ] if ; inline
-
-[ { #values #values } t ] [
-    [ loop-test-5 ] test-loop-exits
-] unit-test
-
-: loop-test-6 ( a -- )
-    dup [
-        dup string? [
-            loop-test-6
-        ] [
-            3 throw
-        ] if
-    ] [
-        drop
-    ] if ; inline
-
-[ { #values } t ] [
-    [ loop-test-6 ] test-loop-exits
-] unit-test
-
-[ f ] [
-    [ [ [ ] map ] map ] dataflow detect-loops
-    [ dup #label? swap #loop? not and ] node-exists?
-] unit-test
-
-: blah f ;
-
-DEFER: a
-
-: b ( -- )
-    blah [ b ] [ a ] if ; inline
-
-: a ( -- )
-    blah [ b ] [ a ] if ; inline
-
-[ t ] [
-    [ a ] dataflow detect-loops
-    \ a label-is-loop?
-] unit-test
-
-[ t ] [
-    [ a ] dataflow detect-loops
-    \ b label-is-loop?
-] unit-test
-
-[ t ] [
-    [ b ] dataflow detect-loops
-    \ a label-is-loop?
-] unit-test
-
-[ t ] [
-    [ a ] dataflow detect-loops
-    \ b label-is-loop?
-] unit-test
-
-DEFER: a'
-
-: b' ( -- )
-    blah [ b' b' ] [ a' ] if ; inline
-
-: a' ( -- )
-    blah [ b' ] [ a' ] if ; inline
-
-[ f ] [
-    [ a' ] dataflow detect-loops
-    \ a' label-is-loop?
-] unit-test
-
-[ f ] [
-    [ b' ] dataflow detect-loops
-    \ b' label-is-loop?
-] unit-test
-
-! I used to think this should be f, but doing this on pen and
-! paper almost convinced me that a loop conversion here is
-! sound. The loop analysis algorithm looks pretty solid -- its
-! a standard iterative dataflow problem after all -- so I'm
-! tempted to believe the computer here
-[ t ] [
-    [ b' ] dataflow detect-loops
-    \ a' label-is-loop?
-] unit-test
-
-[ f ] [
-    [ a' ] dataflow detect-loops
-    \ b' label-is-loop?
-] unit-test
diff --git a/core/optimizer/control/control.factor b/core/optimizer/control/control.factor
deleted file mode 100755
index 7ab0ffc806..0000000000
--- a/core/optimizer/control/control.factor
+++ /dev/null
@@ -1,337 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic assocs inference inference.class
-inference.dataflow inference.backend inference.state io kernel
-math namespaces sequences vectors words quotations hashtables
-combinators classes classes.algebra generic.math continuations
-optimizer.def-use optimizer.backend generic.standard ;
-IN: optimizer.control
-
-! ! ! Rudimentary CFA
-
-! A LOOP
-!
-!          #label A
-!             |
-!            #if ----> #merge ----> #return
-!             |
-!       -------------
-!       |           |
-! #call-label A     |
-!       |          ...
-!    #values
-!
-! NOT A LOOP (call to A not in tail position):
-!
-!
-!          #label A
-!             |
-!            #if ----> ... ----> #merge ----> #return
-!             |
-!       -------------
-!       |           |
-! #call-label A     |
-!       |          ...
-!      ...
-!       |
-!    #values
-!
-! NOT A LOOP (call to A nested inside another label which is
-! not a loop):
-!
-!
-!          #label A
-!             |
-!            #if ----> #merge ----> ... ----> #return
-!             |
-!       -------------
-!       |           |
-!      ...      #label B
-!                   |
-!                  #if -> ...
-!                   |
-!               ---------
-!               |       |
-!         #call-label A |
-!               |       |
-!           #values     |
-!                 #call-label B
-!                       |
-!                      ...
-
-! Mapping word => { node { nesting tail? }+ height }
-! We record all calls to a label, their control nesting and
-! whether it is a tail call or not
-SYMBOL: label-info
-
-GENERIC: collect-label-info* ( node -- )
-
-M: #label collect-label-info*
-    [ V{ } clone node-stack get length 3array ] keep
-    node-param label-info get set-at ;
-
-USE: prettyprint
-
-M: #call-label collect-label-info*
-    node-param label-info get at
-    node-stack get over third tail
-    [ [ #label? ] filter [ node-param ] map ] keep
-    [ node-successor #tail? ] all? 2array
-    swap second push ;
-
-M: node collect-label-info*
-    drop ;
-
-: collect-label-info ( node -- )
-    H{ } clone label-info set
-    [ collect-label-info* ] each-node ;
-
-! Mapping word => label
-SYMBOL: potential-loops
-
-: remove-non-tail-calls ( -- )
-    label-info get
-    [ nip second [ second ] all? ] assoc-filter
-    [ first ] assoc-map
-    potential-loops set ;
-
-: remove-non-loop-calls ( -- )
-    ! Boolean is set to t if something changed.
-    !  We recurse until a fixed point is reached.
-    f label-info get [
-        ! If label X is called from within a label Y that is
-        ! no longer a potential loop, then X is no longer a
-        ! potential loop either.
-        over potential-loops get key? [
-            second [ first ] map concat
-            potential-loops get [ key? ] curry all?
-            [ drop ] [ potential-loops get delete-at t or ] if
-        ] [ 2drop ] if
-    ] assoc-each [ remove-non-loop-calls ] when ;
-
-: detect-loops ( node -- node )
-    [
-        dup
-        collect-label-info
-        remove-non-tail-calls
-        remove-non-loop-calls
-        potential-loops get [
-            nip t swap set-#label-loop?
-        ] assoc-each
-    ] with-scope ;
-
-! ! ! Constant branch folding
-!
-! BEFORE
-!
-!      #if ----> #merge ----> C
-!       |
-!   ---------
-!   |       |
-!   A       B
-!   |       |
-! #values   |
-!        #values
-!
-! AFTER
-!
-!       |
-!       A
-!       |
-!    #values
-!       |
-!    #merge
-!       |
-!       C
-
-: fold-branch ( node branch# -- node )
-    over node-children nth
-    swap node-successor over splice-node ;
-
-! #if
-: known-boolean-value? ( node value -- value ? )
-    2dup node-literal? [
-        node-literal t
-    ] [
-        node-class {
-            { [ dup null class<= ] [ drop f f ] }
-            { [ dup \ f class-not class<= ] [ drop t t ] }
-            { [ dup \ f class<= ] [ drop f t ] }
-            [ drop f f ]
-        } cond
-    ] if ;
-
-: fold-if-branch? dup node-in-d first known-boolean-value? ;
-
-: fold-if-branch ( node value -- node' )
-    over drop-inputs >r
-    0 1 ? fold-branch
-    r> [ set-node-successor ] keep ;
-
-! ! ! Lifting code after a conditional if one branch throws
-
-! BEFORE
-!
-!         #if ----> #merge ----> B ----> #return/#values
-!          |
-!          |
-!      ---------
-!      |       |
-!      |       A
-! #terminate   |
-!           #values
-!
-! AFTER
-!
-!         #if ----> #merge (*) ----> #return/#values (**)
-!          |
-!          |
-!      ---------
-!      |       |
-!      |       A
-! #terminate   |
-!           #values
-!              |
-!           #merge (***)
-!              |
-!              B
-!              |
-!        #return/#values
-!
-! (*) has the same outputs as the inputs of (**), and it is not
-! the same node as (***)
-!
-! Note: if (**) is #return is is sound to put #terminate there,
-! but not if (**) is #
-
-: only-one ( seq -- elt/f )
-    dup length 1 = [ first ] [ drop f ] if ;
-
-: lift-throw-tail? ( #if -- tail/? )
-    dup node-successor #tail?
-    [ drop f ] [ active-children only-one ] if ;
-
-: clone-node ( node -- newnode )
-    clone dup [ clone ] modify-values ;
-
-: lift-branch
-    over
-    last-node clone-node
-    dup node-in-d \ #merge out-node
-    [ set-node-successor ] keep -rot
-    >r dup node-successor r> splice-node
-    set-node-successor ;
-
-M: #if optimize-node*
-    dup fold-if-branch? [ fold-if-branch t ] [
-        drop dup lift-throw-tail? dup [
-            dupd lift-branch t
-        ] [
-            2drop t f
-        ] if
-    ] if ;
-
-! Loop tail hoising: code after a loop can sometimes go in the
-! non-recursive branch of the loop
-
-! BEFORE:
-
-!   #label -> C -> #return 1
-!     |
-!     -> #if -> #merge (*) -> #return 2
-!         |
-!     --------
-!     |      |
-!     A      B
-!     |      |
-!  #values   |
-!        #call-label
-!            |
-!            |
-!         #values
-
-! AFTER:
-
-!        #label -> #return 1
-!         |
-!         -> #if -------> #merge (*) -> #return 2
-!             |           \-------------------/
-!     ----------------              |
-!     |              |              |
-!     A              B     unreacachable code needed to
-!     |              |         preserve invariants
-!  #values           |
-!     |          #call-label
-!  #merge (*)        |
-!     |              |
-!     C           #values
-!     |
-!  #return 1
-
-: find-tail ( node -- tail )
-    dup #terminate? [
-        dup node-successor #tail? [
-            node-successor find-tail
-        ] unless
-    ] unless ;
-
-: child-tails ( node -- seq )
-    node-children [ find-tail ] map ;
-
-GENERIC: add-loop-exit* ( label node -- )
-
-M: #branch add-loop-exit*
-    child-tails [ add-loop-exit* ] with each ;
-
-M: #call-label add-loop-exit*
-    tuck node-param eq? [ drop ] [ node-successor , ] if ;
-
-M: #terminate add-loop-exit*
-    2drop ;
-
-M: node add-loop-exit*
-    nip node-successor dup #terminate? [ drop ] [ , ] if ;
-
-: find-loop-exits ( label node -- seq )
-    [ add-loop-exit* ] { } make ;
-
-: find-final-if ( node -- #if/f )
-    dup [
-        dup #if? [
-            dup node-successor #tail? [
-                node-successor find-final-if
-            ] unless
-        ] [
-            node-successor find-final-if
-        ] if
-    ] when ;
-
-: detach-node-successor ( node -- successor )
-    dup node-successor #terminate rot set-node-successor ;
-
-: lift-loop-tail? ( #label -- tail/f )
-    dup node-successor node-successor [
-        dup node-param swap node-child find-final-if dup [
-            find-loop-exits only-one
-        ] [ 2drop f ] if
-    ] [ drop f ] if ;
-
-M: #loop optimize-node*
-    dup lift-loop-tail? dup [
-        last-node "values" set
-
-        dup node-successor "tail" set
-        dup node-successor last-node "return" set
-        dup node-child find-final-if node-successor "merge" set
-
-        ! #label -> #return
-        "return" get clone-node over set-node-successor
-        ! #merge -> C
-        "merge" get clone-node "tail" get over set-node-successor
-        ! #values -> #merge ->C
-        "values" get set-node-successor
-
-        t
-    ] [
-        2drop t f
-    ] if ;
diff --git a/core/optimizer/def-use/def-use-tests.factor b/core/optimizer/def-use/def-use-tests.factor
deleted file mode 100755
index f49ab7fcba..0000000000
--- a/core/optimizer/def-use/def-use-tests.factor
+++ /dev/null
@@ -1,126 +0,0 @@
-IN: optimizer.def-use.tests
-USING: inference inference.dataflow optimizer optimizer.def-use
-namespaces assocs kernel sequences math tools.test words sets ;
-
-[ 3 { 1 1 1 } ] [
-    [ 1 2 3 ] dataflow compute-def-use drop
-    def-use get values dup length swap [ length ] map
-] unit-test
-
-: kill-set ( quot -- seq )
-    dataflow compute-def-use drop compute-dead-literals keys
-    [ value-literal ] map ;
-
-[ { [ + ] } ] [
-    [ [ 1 2 3 ] [ + ] over drop drop ] kill-set
-] unit-test
-
-[ { [ + ] } ] [
-    [ [ + ] [ 1 2 3 ] over drop nip ] kill-set
-] unit-test
-
-[ { [ + ] } ] [
-    [ [ + ] dup over 3drop ] kill-set
-] unit-test
-
-[ t ] [
-    { [ + ] [ - ] }
-    [ [ + ] [ - ] [ 1 2 3 ] pick pick 2drop >r 2drop r> ]
-    kill-set set=
-] unit-test
-
-[ t ] [
-    { [ + ] }
-    [ [ 1 2 3 ] [ 4 5 6 ] [ + ] pick >r drop r> ]
-    kill-set set=
-] unit-test
-
-[ t ] [
-    [ [ 1 ] [ 2 ] ] [ [ 1 ] [ 2 ] if ] kill-set set=
-] unit-test
-
-[ t ] [
-    { [ 5 ] [ dup ] }
-    [ [ 5 ] [ dup ] if ] kill-set set=
-] unit-test
-
-[ t ] [
-    [ [ dup ] [ dup ] ]
-    [ 5 swap [ dup ] [ dup ] if ]
-    kill-set set=
-] unit-test
-
-[ t ] [
-    [ 5 [ dup ] [ dup ] ]
-    [ 5 swap [ dup ] [ dup ] if 2drop ]
-    kill-set set=
-] unit-test
-
-: literal-kill-test ( a b -- )
-    dup [ >r dup slip r> literal-kill-test ] [ 2drop ] if ; inline
-
-[ t ] [
-    { [ ] [ >r dup slip r> literal-kill-test ] [ 2drop ] }
-    [ [ ] swap literal-kill-test ] kill-set set=
-] unit-test
-
-: p1 drop 4 ;
-: p2 3drop 1 2 ;
-: p3 drop 3 ;
-
-: regression-0
-    [ 2drop ] with assoc-find ;
-
-[ t ] [
-    [ [ 2drop ] with assoc-find ] kill-set
-    [ 2drop ] swap member?
-] unit-test
-
-[ t ] [
-    [ [ "x" 2drop ] assoc-find ] kill-set
-    [ "x" 2drop ] swap member?
-] unit-test
-
-: 2swap ( x y z t -- z t x y )
-    rot >r rot r> ; inline
-
-: regression-1
-    [ 2swap [ swapd * -rot p2 +@ ] 2keep ] assoc-each ;
-
-[ { t t } ] [
-    {
-        [ swapd * -rot p2 +@ ]
-        [ 2swap [ swapd * -rot p2 +@ ] 2keep ]
-    } \ regression-1 word-def kill-set [ member? ] curry map
-] unit-test
-
-: regression-2 ( x y -- x.y )
-    [ p1 ] bi@ [
-        [
-            rot
-            [ 2swap [ swapd * -rot p2 +@ ] 2keep ]
-            assoc-each 2drop
-        ] with assoc-each
-    ] H{ } make-assoc p3 ;
-
-[ { t t t t t } ] [
-    {
-        [ p1 ]
-        [ swapd * -rot p2 +@ ]
-        [ 2swap [ swapd * -rot p2 +@ ] 2keep ]
-        [
-            rot
-            [ 2swap [ swapd * -rot p2 +@ ] 2keep ]
-            assoc-each 2drop
-        ]
-        [
-            [
-                rot
-                [ 2swap [ swapd * -rot p2 +@ ] 2keep ]
-                assoc-each 2drop
-            ] with assoc-each
-        ]
-    }
-    \ regression-2 word-def kill-set
-    [ member? ] curry map
-] unit-test
diff --git a/core/optimizer/def-use/def-use.factor b/core/optimizer/def-use/def-use.factor
deleted file mode 100755
index a2e9f88135..0000000000
--- a/core/optimizer/def-use/def-use.factor
+++ /dev/null
@@ -1,136 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces assocs sequences inference.dataflow
-inference.backend kernel generic assocs classes vectors
-accessors combinators ;
-IN: optimizer.def-use
-
-SYMBOL: def-use
-
-: used-by ( value -- seq ) def-use get at ;
-
-: unused? ( value -- ? )
-    used-by empty? ;
-
-: uses-values ( node seq -- )
-    [ def-use get [ ?push ] change-at ] with each ;
-
-: defs-values ( seq -- )
-    #! If there is no value, set it to a new empty vector,
-    #! otherwise do nothing.
-    [ def-use get [ V{ } like ] change-at ] each ;
-
-GENERIC: node-def-use ( node -- )
-
-: compute-def-use ( node -- node )
-    H{ } clone def-use set
-    dup [ node-def-use ] each-node ;
-
-: nest-def-use ( node -- def-use )
-    [ compute-def-use drop def-use get ] with-scope ;
-
-: (node-def-use) ( node -- )
-    {
-        [ dup in-d>> uses-values ] 
-        [ dup in-r>> uses-values ] 
-        [ out-d>>    defs-values ] 
-        [ out-r>>    defs-values ]
-    } cleave ;
-
-M: object node-def-use (node-def-use) ;
-
-! nodes that don't use their values directly
-UNION: #passthru
-    #shuffle #>r #r> #call-label #merge #values #entry #declare ;
-
-M: #passthru node-def-use drop ;
-
-M: #return node-def-use
-    #! Values returned by local labels can be killed.
-    dup param>> [ drop ] [ (node-def-use) ] if ;
-
-! nodes that don't use their values directly
-UNION: #killable
-    #push #passthru ;
-
-: purge-invariants ( stacks -- seq )
-    #! Output a sequence of values which are not present in the
-    #! same position in each sequence of the stacks sequence.
-    unify-lengths flip [ all-eq? not ] filter concat ;
-
-M: #label node-def-use
-    [
-        dup in-d>> ,
-        dup node-child out-d>> ,
-        dup calls>> [ in-d>> , ] each
-    ] { } make purge-invariants uses-values ;
-
-: branch-def-use ( #branch -- )
-    active-children [ in-d>> ] map
-    purge-invariants t swap uses-values ;
-
-M: #branch node-def-use
-    #! This assumes that the last element of each branch is a
-    #! #values node.
-    dup branch-def-use (node-def-use) ;
-
-: compute-dead-literals ( -- values )
-    def-use get [ >r value? r> empty? and ] assoc-filter ;
-
-DEFER: kill-nodes
-SYMBOL: dead-literals
-
-GENERIC: kill-node* ( node -- node/t )
-
-M: node kill-node* drop t ;
-
-: prune-if ( node quot -- successor/t )
-    over >r call [ r> node-successor ] [ r> drop t ] if ;
-    inline
-
-M: #shuffle kill-node* 
-    [ [ in-d>> empty? ] [ out-d>> empty? ] bi and ] prune-if ;
-
-M: #push kill-node* 
-    [ out-d>> empty? ] prune-if ;
-
-M: #>r kill-node*
-    [ in-d>> empty? ] prune-if ;
-
-M: #r> kill-node*
-    [ in-r>> empty? ] prune-if ;
-
-: kill-node ( node -- node )
-    dup [
-        dup [ dead-literals get swap remove-all ] modify-values
-        dup kill-node* dup t eq? [
-            drop dup [ kill-nodes ] map-children
-        ] [
-            nip kill-node
-        ] if
-    ] when ;
-
-: kill-nodes ( node -- newnode )
-    [ kill-node ] transform-nodes ;
-
-: kill-values ( node -- new-node )
-    #! Remove literals which are not actually used anywhere.
-    compute-dead-literals dup assoc-empty? [ drop ] [
-        dead-literals [ kill-nodes ] with-variable
-    ] if ;
-
-: sole-consumer ( #call -- node/f )
-    out-d>> first used-by
-    dup length 1 = [ first ] [ drop f ] if ;
-
-: splice-def-use ( node -- )
-    #! As a first approximation, we take all the values used
-    #! by the set of new nodes, and push a 't' on their
-    #! def-use list here. We could perform a full graph
-    #! substitution, but we don't need to, because the next
-    #! optimizer iteration will do that. We just need a minimal
-    #! degree of accuracy; the new values should be marked as
-    #! having _some_ usage, so that flushing doesn't erronously
-    #! flush them away.
-    nest-def-use keys
-    def-use get [ [ t swap ?push ] change-at ] curry each ;
diff --git a/core/optimizer/def-use/summary.txt b/core/optimizer/def-use/summary.txt
deleted file mode 100644
index 4bd62843c1..0000000000
--- a/core/optimizer/def-use/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Value definition/use inference
diff --git a/core/optimizer/inlining/inlining-tests.factor b/core/optimizer/inlining/inlining-tests.factor
deleted file mode 100644
index 608054becb..0000000000
--- a/core/optimizer/inlining/inlining-tests.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-IN: optimizer.inlining.tests
-USING: tools.test optimizer.inlining ;
-
-\ word-flat-length must-infer
-
-\ inlining-math-method must-infer
-
-\ optimistic-inline? must-infer
-
-\ find-identity must-infer
diff --git a/core/optimizer/inlining/inlining.factor b/core/optimizer/inlining/inlining.factor
deleted file mode 100755
index 393264e459..0000000000
--- a/core/optimizer/inlining/inlining.factor
+++ /dev/null
@@ -1,231 +0,0 @@
-! Copyright (C) 2004, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic assocs inference inference.class
-inference.dataflow inference.backend inference.state io kernel
-math namespaces sequences vectors words quotations hashtables
-combinators classes classes.algebra generic.math
-optimizer.math.partial continuations optimizer.def-use
-optimizer.backend generic.standard optimizer.specializers
-optimizer.def-use optimizer.pattern-match generic.standard
-optimizer.control kernel.private ;
-IN: optimizer.inlining
-
-: remember-inlining ( node history -- )
-    [ swap set-node-history ] curry each-node ;
-
-: inlining-quot ( node quot -- node )
-    over node-in-d dataflow-with
-    dup rot infer-classes/node ;
-
-: splice-quot ( #call quot history -- node )
-    #! Must add history *before* splicing in, otherwise
-    #! the rest of the IR will also remember the history
-    pick node-history append
-    >r dupd inlining-quot dup r> remember-inlining
-    tuck splice-node ;
-
-! A heuristic to avoid excessive inlining
-DEFER: (flat-length)
-
-: word-flat-length ( word -- n )
-    {
-        ! heuristic: { ... } declare comes up in method bodies
-        ! and we don't care about it
-        { [ dup \ declare eq? ] [ drop -2 ] }
-        ! recursive
-        { [ dup get ] [ drop 1 ] }
-        ! not inline
-        { [ dup inline? not ] [ drop 1 ] }
-        ! inline
-        [ dup dup set word-def (flat-length) ]
-    } cond ;
-
-: (flat-length) ( seq -- n )
-    [
-        {
-            { [ dup quotation? ] [ (flat-length) 1+ ] }
-            { [ dup array? ] [ (flat-length) ] }
-            { [ dup word? ] [ word-flat-length ] }
-            [ drop 1 ]
-        } cond
-    ] map sum ;
-
-: flat-length ( seq -- n )
-    [ word-def (flat-length) ] with-scope ;
-
-! Single dispatch method inlining optimization
-: node-class# ( node n -- class )
-    over node-in-d <reversed> ?nth node-class ;
-
-: dispatching-class ( node word -- class )
-    [ dispatch# node-class# ] keep specific-method ;
-
-: inline-standard-method ( node word -- node )
-    2dup dispatching-class dup [
-        over +inlined+ depends-on
-        swap method 1quotation f splice-quot
-    ] [
-        3drop t
-    ] if ;
-
-! Partial dispatch of math-generic words
-: normalize-math-class ( class -- class' )
-    {
-        null
-        fixnum bignum integer
-        ratio rational
-        float real
-        complex number
-        object
-    } [ class<= ] with find nip ;
-
-: inlining-math-method ( #call word -- quot/f )
-    swap node-input-classes
-    [ first normalize-math-class ]
-    [ second normalize-math-class ] bi
-    3dup math-both-known? [ math-method* ] [ 3drop f ] if ;
-
-: inline-math-method ( #call word -- node/t )
-    [ drop ] [ inlining-math-method ] 2bi
-    dup [ f splice-quot ] [ 2drop t ] if ;
-
-: inline-math-partial ( #call word -- node/t )
-    [ drop ]
-    [
-        "derived-from" word-prop first
-        inlining-math-method dup
-    ]
-    [ nip 1quotation ] 2tri
-    [ = not ] [ drop ] 2bi and
-    [ f splice-quot ] [ 2drop t ] if ;
-
-: inline-method ( #call -- node )
-    dup node-param {
-        { [ dup standard-generic? ] [ inline-standard-method ] }
-        { [ dup math-generic? ] [ inline-math-method ] }
-        { [ dup math-partial? ] [ inline-math-partial ] }
-        [ 2drop t ]
-    } cond ;
-
-! Resolve type checks at compile time where possible
-: comparable? ( actual testing -- ? )
-    #! If actual is a subset of testing or if the two classes
-    #! are disjoint, return t.
-    2dup class<= >r classes-intersect? not r> or ;
-
-: optimize-predicate? ( #call -- ? )
-    dup node-param "predicating" word-prop dup [
-        >r node-class-first r> comparable?
-    ] [
-        2drop f
-    ] if ;
-
-: literal-quot ( node literals -- quot )
-    #! Outputs a quotation which drops the node's inputs, and
-    #! pushes some literals.
-    >r node-in-d length \ drop <repetition>
-    r> [ literalize ] map append >quotation ;
-
-: inline-literals ( node literals -- node )
-    #! Make #shuffle -> #push -> #return -> successor
-    dupd literal-quot f splice-quot ;
-
-: evaluate-predicate ( #call -- ? )
-    dup node-param "predicating" word-prop >r
-    node-class-first r> class<= ;
-
-: optimize-predicate ( #call -- node )
-    #! If the predicate is followed by a branch we fold it
-    #! immediately
-    dup evaluate-predicate swap
-    dup node-successor #if? [
-        dup drop-inputs >r
-        node-successor swap 0 1 ? fold-branch
-        r> [ set-node-successor ] keep
-    ] [
-        swap 1array inline-literals
-    ] if ;
-
-: optimizer-hooks ( node -- conditions )
-    node-param "optimizer-hooks" word-prop ;
-
-: optimizer-hook ( node -- pair/f )
-    dup optimizer-hooks [ first call ] find 2nip ;
-
-: optimize-hook ( node -- )
-    dup optimizer-hook second call ;
-
-: define-optimizers ( word optimizers -- )
-    "optimizer-hooks" set-word-prop ;
-
-: flush-eval? ( #call -- ? )
-    dup node-param "flushable" word-prop [
-        node-out-d [ unused? ] all?
-    ] [
-        drop f
-    ] if ;
-
-: flush-eval ( #call -- node )
-    dup node-param +inlined+ depends-on
-    dup node-out-d length f <repetition> inline-literals ;
-
-: partial-eval? ( #call -- ? )
-    dup node-param "foldable" word-prop [
-        dup node-in-d [ node-literal? ] with all?
-    ] [
-        drop f
-    ] if ;
-
-: literal-in-d ( #call -- inputs )
-    dup node-in-d [ node-literal ] with map ;
-
-: partial-eval ( #call -- node )
-    dup node-param +inlined+ depends-on
-    dup literal-in-d over node-param 1quotation
-    [ with-datastack inline-literals ] [ 2drop 2drop t ] recover ;
-
-: define-identities ( words identities -- )
-    [ "identities" set-word-prop ] curry each ;
-
-: find-identity ( node -- quot )
-    [ node-param "identities" word-prop ] keep
-    [ swap first in-d-match? ] curry find
-    nip dup [ second ] when ;
-
-: apply-identities ( node -- node/f )
-    dup find-identity f splice-quot ;
-
-: optimistic-inline? ( #call -- ? )
-    dup node-param "specializer" word-prop dup [
-        >r node-input-classes r> specialized-length tail*
-        [ class-types length 1 = ] all?
-    ] [
-        2drop f
-    ] if ;
-
-: splice-word-def ( #call word -- node )
-    dup +inlined+ depends-on
-    dup word-def swap 1array splice-quot ;
-
-: optimistic-inline ( #call -- node )
-    dup node-param over node-history memq? [
-        drop t
-    ] [
-        dup node-param splice-word-def
-    ] if ;
-
-: method-body-inline? ( #call -- ? )
-    node-param dup method-body?
-    [ flat-length 10 <= ] [ drop f ] if ;
-
-M: #call optimize-node*
-    {
-        { [ dup flush-eval? ] [ flush-eval ] }
-        { [ dup partial-eval? ] [ partial-eval ] }
-        { [ dup find-identity ] [ apply-identities ] }
-        { [ dup optimizer-hook ] [ optimize-hook ] }
-        { [ dup optimize-predicate? ] [ optimize-predicate ] }
-        { [ dup optimistic-inline? ] [ optimistic-inline ] }
-        { [ dup method-body-inline? ] [ optimistic-inline ] }
-        [ inline-method ]
-    } cond dup not ;
diff --git a/core/optimizer/known-words/known-words.factor b/core/optimizer/known-words/known-words.factor
deleted file mode 100755
index d1dbefe26b..0000000000
--- a/core/optimizer/known-words/known-words.factor
+++ /dev/null
@@ -1,139 +0,0 @@
-! Copyright (C) 2005, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-IN: optimizer.known-words
-USING: alien arrays generic hashtables inference.dataflow
-inference.class kernel assocs math math.private kernel.private
-sequences words parser vectors strings sbufs io namespaces
-assocs quotations sequences.private io.binary
-io.streams.string layouts splitting math.intervals
-math.floats.private classes.tuple classes.tuple.private classes
-classes.algebra optimizer.def-use optimizer.backend
-optimizer.pattern-match optimizer.inlining float-arrays
-sequences.private combinators ;
-
-{ <tuple> <tuple-boa> } [
-    [
-        dup node-in-d peek node-literal
-        dup tuple-layout? [ layout-class ] [ drop tuple ] if
-        1array f
-    ] "output-classes" set-word-prop
-] each
-
-\ new [
-    dup node-in-d peek node-literal
-    dup class? [ drop tuple ] unless 1array f
-] "output-classes" set-word-prop
-
-! the output of clone has the same type as the input
-{ clone (clone) } [
-    [
-        node-in-d [ value-class* ] map f
-    ] "output-classes" set-word-prop
-] each
-
-! not [ A ] [ B ] if ==> [ B ] [ A ] if
-: flip-branches? ( #call -- ? ) sole-consumer #if? ;
-
-: (flip-branches) ( #if -- )
-    dup node-children reverse swap set-node-children ;
-
-: flip-branches ( #call -- #if )
-    #! If a not is followed by an #if, flip branches and
-    #! remove the not.
-    dup sole-consumer (flip-branches) [ ] f splice-quot ;
-
-\ not {
-    { [ dup flip-branches? ] [ flip-branches ] }
-} define-optimizers
-
-! eq? on objects of disjoint types is always f
-: disjoint-eq? ( node -- ? )
-    node-input-classes first2 2dup and
-    [ classes-intersect? not ] [ 2drop f ] if ;
-
-\ eq? {
-    { [ dup disjoint-eq? ] [ [ f ] inline-literals ] }
-} define-optimizers
-
-: literal-member? ( #call -- ? )
-    node-in-d peek dup value?
-    [ value-literal sequence? ] [ drop f ] if ;
-
-: member-quot ( seq -- newquot )
-    [ literalize [ t ] ] { } map>assoc
-    [ drop f ] suffix [ nip case ] curry ;
-
-: expand-member ( #call -- )
-    dup node-in-d peek value-literal member-quot f splice-quot ;
-
-\ member? {
-    { [ dup literal-member? ] [ expand-member ] }
-} define-optimizers
-
-! if the result of eq? is t and the second input is a literal,
-! the first input is equal to the second
-\ eq? [
-    dup node-in-d second dup value? [
-        swap [
-            value-literal 0 `input literal,
-            \ f class-not 0 `output class,
-        ] set-constraints
-    ] [
-        2drop
-    ] if
-] "constraints" set-word-prop
-
-! eq? on the same object is always t
-{ eq? = } {
-    { { @ @ } [ 2drop t ] }
-} define-identities
-
-! Specializers
-{ first first2 first3 first4 }
-[ { array } "specializer" set-word-prop ] each
-
-{ peek pop* pop push } [
-    { vector } "specializer" set-word-prop
-] each
-
-\ push-all
-{ { string sbuf } { array vector } }
-"specializer" set-word-prop
-
-\ append
-{ { string string } { array array } }
-"specializer" set-word-prop
-
-\ subseq
-{ { fixnum fixnum string } { fixnum fixnum array } }
-"specializer" set-word-prop
-
-\ reverse-here
-{ { string } { array } }
-"specializer" set-word-prop
-
-\ mismatch
-{ string string }
-"specializer" set-word-prop
-
-\ find-last-sep { string sbuf } "specializer" set-word-prop
-
-\ >string { sbuf } "specializer" set-word-prop
-
-\ >array { { string } { vector } } "specializer" set-word-prop
-
-\ >vector { { array } { vector } } "specializer" set-word-prop
-
-\ >sbuf { string } "specializer" set-word-prop
-
-\ split, { string string } "specializer" set-word-prop
-
-\ memq? { array } "specializer" set-word-prop
-
-\ member? { fixnum string } "specializer" set-word-prop
-
-\ assoc-stack { vector } "specializer" set-word-prop
-
-\ >le { { fixnum fixnum } { bignum fixnum } } "specializer" set-word-prop
-
-\ >be { { bignum fixnum } { fixnum fixnum } } "specializer" set-word-prop
diff --git a/core/optimizer/known-words/summary.txt b/core/optimizer/known-words/summary.txt
deleted file mode 100644
index 0e944a1d71..0000000000
--- a/core/optimizer/known-words/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Hand-coded optimization rules for primitives and low-level words
diff --git a/core/optimizer/math/math.factor b/core/optimizer/math/math.factor
deleted file mode 100755
index 72e64d5b95..0000000000
--- a/core/optimizer/math/math.factor
+++ /dev/null
@@ -1,422 +0,0 @@
-! Copyright (C) 2005, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-IN: optimizer.math
-USING: alien alien.accessors arrays generic hashtables kernel
-assocs math math.private kernel.private sequences words parser
-inference.class inference.dataflow vectors strings sbufs io
-namespaces assocs quotations math.intervals sequences.private
-combinators splitting layouts math.parser classes
-classes.algebra generic.math optimizer.pattern-match
-optimizer.backend optimizer.def-use optimizer.inlining
-optimizer.math.partial generic.standard system accessors ;
-
-: define-math-identities ( word identities -- )
-    >r all-derived-ops r> define-identities ;
-
-\ number= {
-    { { @ @ } [ 2drop t ] }
-} define-math-identities
-
-\ + {
-    { { number 0 } [ drop ] }
-    { { 0 number } [ nip ] }
-} define-math-identities
-
-\ - {
-    { { number 0 } [ drop ] }
-    { { @ @ } [ 2drop 0 ] }
-} define-math-identities
-
-\ < {
-    { { @ @ } [ 2drop f ] }
-} define-math-identities
-
-\ <= {
-    { { @ @ } [ 2drop t ] }
-} define-math-identities
-
-\ > {
-    { { @ @ } [ 2drop f ] }
-} define-math-identities
-
-\ >= {
-    { { @ @ } [ 2drop t ] }
-} define-math-identities
-
-\ * {
-    { { number 1 } [ drop ] }
-    { { 1 number } [ nip ] }
-    { { number 0 } [ nip ] }
-    { { 0 number } [ drop ] }
-    { { number -1 } [ drop 0 swap - ] }
-    { { -1 number } [ nip 0 swap - ] }
-} define-math-identities
-
-\ / {
-    { { number 1 } [ drop ] }
-    { { number -1 } [ drop 0 swap - ] }
-} define-math-identities
-
-\ mod {
-    { { integer 1 } [ 2drop 0 ] }
-} define-math-identities
-
-\ rem {
-    { { integer 1 } [ 2drop 0 ] }
-} define-math-identities
-
-\ bitand {
-    { { number -1 } [ drop ] }
-    { { -1 number } [ nip ] }
-    { { @ @ } [ drop ] }
-    { { number 0 } [ nip ] }
-    { { 0 number } [ drop ] }
-} define-math-identities
-
-\ bitor {
-    { { number 0 } [ drop ] }
-    { { 0 number } [ nip ] }
-    { { @ @ } [ drop ] }
-    { { number -1 } [ nip ] }
-    { { -1 number } [ drop ] }
-} define-math-identities
-
-\ bitxor {
-    { { number 0 } [ drop ] }
-    { { 0 number } [ nip ] }
-    { { number -1 } [ drop bitnot ] }
-    { { -1 number } [ nip bitnot ] }
-    { { @ @ } [ 2drop 0 ] }
-} define-math-identities
-
-\ shift {
-    { { 0 number } [ drop ] }
-    { { number 0 } [ drop ] }
-} define-math-identities
-
-: math-closure ( class -- newclass )
-    { null fixnum bignum integer rational float real number }
-    [ class<= ] with find nip number or ;
-
-: fits? ( interval class -- ? )
-    "interval" word-prop dup
-    [ interval-subset? ] [ 2drop t ] if ;
-
-: math-output-class ( node upgrades -- newclass )
-    >r
-    in-d>> null [ value-class* math-closure math-class-max ] reduce
-    dup r> at swap or ;
-
-: won't-overflow? ( interval node -- ? )
-    node-in-d [ value-class* fixnum class<= ] all?
-    swap fixnum fits? and ;
-
-: post-process ( class interval node -- classes intervals )
-    dupd won't-overflow?
-    [ >r dup { f integer } member? [ drop fixnum ] when r> ] when
-    [ dup [ 1array ] when ] bi@ ;
-
-: math-output-interval-1 ( node word -- interval )
-    dup [
-        >r node-in-d first value-interval* dup
-        [ r> execute ] [ r> 2drop f ] if
-    ] [
-        2drop f
-    ] if ; inline
-
-: math-output-class/interval-1 ( node word -- classes intervals )
-    [ drop { } math-output-class 1array ]
-    [ math-output-interval-1 1array ] 2bi ;
-
-{
-    { bitnot interval-bitnot }
-    { fixnum-bitnot interval-bitnot }
-    { bignum-bitnot interval-bitnot }
-} [
-    [ math-output-class/interval-1 ] curry
-    "output-classes" set-word-prop
-] assoc-each
-
-: intervals ( node -- i1 i2 )
-    node-in-d first2 [ value-interval* ] bi@ ;
-
-: math-output-interval-2 ( node word -- interval )
-    dup [
-        >r intervals 2dup and [ r> execute ] [ r> 3drop f ] if
-    ] [
-        2drop f
-    ] if ; inline
-
-: math-output-class/interval-2 ( node upgrades word -- classes intervals )
-    pick >r
-    >r over r>
-    math-output-interval-2
-    >r math-output-class r>
-    r> post-process ; inline
-
-{
-    { + { { fixnum integer } } interval+ }
-    { - { { fixnum integer } } interval- }
-    { * { { fixnum integer } } interval* }
-    { / { { fixnum rational } { integer rational } } interval/ }
-    { /i { { fixnum integer } } interval/i }
-    { shift { { fixnum integer } } interval-shift-safe }
-} [
-    first3 [
-        [
-            math-output-class/interval-2
-        ] 2curry "output-classes" set-word-prop
-    ] 2curry each-derived-op
-] each
-
-: real-value? ( value -- n ? )
-    dup value? [ value-literal dup real? ] [ drop f f ] if ;
-
-: mod-range ( n -- interval )
-    dup neg swap (a,b) ;
-
-: rem-range ( n -- interval )
-    0 swap [a,b) ;
-
-: bitand-range ( n -- interval )
-    dup 0 < [ drop f ] [ 0 swap [a,b] ] if ;
-
-: math-output-interval-special ( node word -- interval )
-    dup [
-        >r node-in-d second real-value?
-        [ r> execute ] [ r> 2drop f ] if
-    ] [
-        2drop f
-    ] if ; inline
-
-: math-output-class/interval-special ( node min word -- classes intervals )
-    pick >r
-    >r over r>
-    math-output-interval-special
-    >r math-output-class r>
-    r> post-process ; inline
-
-{
-    { mod { } mod-range }
-    { rem { { fixnum integer } } rem-range }
-
-    { bitand { } bitand-range }
-    { bitor { } f }
-    { bitxor { } f }
-} [
-    first3 [
-        [
-            math-output-class/interval-special
-        ] 2curry "output-classes" set-word-prop
-    ] 2curry each-derived-op
-] each
-
-: twiddle-interval ( i1 -- i2 )
-    dup [
-        node get node-in-d
-        [ value-class* integer class<= ] all?
-        [ integral-closure ] when
-    ] when ;
-
-: (comparison-constraints) ( i1 i2 word class -- )
-    node get [
-        >r execute twiddle-interval 0 `input interval,
-        r> 0 `output class,
-    ] set-constraints ; inline
-
-: comparison-constraints ( node true false -- )
-    >r >r dup node set intervals dup [
-        2dup
-        r> \ f class-not (comparison-constraints)
-        r> \ f (comparison-constraints)
-    ] [
-        r> r> 2drop 2drop
-    ] if ; inline
-
-{
-    { < assume< assume>= }
-    { <= assume<= assume> }
-    { > assume> assume<= }
-    { >= assume>= assume< }
-} [
-    first3 [
-        [
-            [ comparison-constraints ] with-scope
-        ] 2curry "constraints" set-word-prop
-    ] 2curry each-derived-op
-] each
-
-{
-    alien-signed-1
-    alien-unsigned-1
-    alien-signed-2
-    alien-unsigned-2
-    alien-signed-4
-    alien-unsigned-4
-    alien-signed-8
-    alien-unsigned-8
-} [
-    dup word-name {
-        {
-            [ "alien-signed-" ?head ]
-            [ string>number 8 * 1- 2^ dup neg swap 1- [a,b] ]
-        }
-        {
-            [ "alien-unsigned-" ?head ]
-            [ string>number 8 * 2^ 1- 0 swap [a,b] ]
-        }
-    } cond 1array
-    [ nip f swap ] curry "output-classes" set-word-prop
-] each
-
-! Associate intervals to classes
-\ fixnum
-most-negative-fixnum most-positive-fixnum [a,b]
-"interval" set-word-prop
-
-\ array-capacity
-0 max-array-capacity [a,b]
-"interval" set-word-prop
-
-{
-    { >fixnum fixnum }
-    { >bignum bignum }
-    { >float float }
-} [
-    [
-        over node-in-d first value-interval*
-        dup pick fits? [ drop f ] unless
-        rot post-process
-    ] curry "output-classes" set-word-prop
-] assoc-each
-
-! Removing overflow checks
-: remove-overflow-check? ( #call -- ? )
-    dup out-d>> first node-class
-    [ fixnum class<= ] [ null eq? not ] bi and ;
-
-{
-    { + [ fixnum+fast ] }
-    { +-integer-fixnum [ fixnum+fast ] }
-    { - [ fixnum-fast ] }
-    { * [ fixnum*fast ] }
-    { *-integer-fixnum [ fixnum*fast ] }
-    { shift [ fixnum-shift-fast ] }
-    { fixnum+ [ fixnum+fast ] }
-    { fixnum- [ fixnum-fast ] }
-    { fixnum* [ fixnum*fast ] }
-    { fixnum-shift [ fixnum-shift-fast ] }
-} [
-    [
-        [ dup remove-overflow-check? ] ,
-        [ f splice-quot ] curry ,
-    ] { } make 1array define-optimizers
-] assoc-each
-
-! Remove redundant comparisons
-: intervals-first2 ( #call -- first second )
-    dup dup node-in-d first node-interval
-    swap dup node-in-d second node-interval ;
-
-: known-comparison? ( #call -- ? )
-    intervals-first2 and ;
-
-: perform-comparison ( #call word -- result )
-    >r intervals-first2 r> execute ; inline
-
-: foldable-comparison? ( #call word -- ? )
-    >r dup known-comparison? [
-        r> perform-comparison incomparable eq? not
-    ] [
-        r> 2drop f
-    ] if ; inline
-
-: fold-comparison ( #call word -- node )
-    dupd perform-comparison 1array inline-literals ;
-
-{
-    { < interval< }
-    { <= interval<= }
-    { > interval> }
-    { >= interval>= }
-} [
-    [
-        [
-            dup [ dupd foldable-comparison? ] curry ,
-            [ fold-comparison ] curry ,
-        ] { } make 1array define-optimizers
-    ] curry each-derived-op
-] assoc-each
-
-! The following words are handled in a similar way except if
-! the only consumer is a >fixnum we remove the overflow check
-! too
-: consumed-by? ( node word -- ? )
-    swap sole-consumer
-    dup #call? [ node-param eq? ] [ 2drop f ] if ;
-
-: coerced-to-fixnum? ( #call -- ? )
-    dup dup node-in-d [ node-class integer class<= ] with all?
-    [ \ >fixnum consumed-by? ] [ drop f ] if ;
-
-{
-    { + [ [ >fixnum ] bi@ fixnum+fast ] }
-    { - [ [ >fixnum ] bi@ fixnum-fast ] }
-    { * [ [ >fixnum ] bi@ fixnum*fast ] }
-} [
-    >r derived-ops r> [
-        [
-            [
-                dup remove-overflow-check?
-                over coerced-to-fixnum? or
-            ] ,
-            [ f splice-quot ] curry ,
-        ] { } make 1array define-optimizers
-    ] curry each
-] assoc-each
-
-: convert-rem-to-and? ( #call -- ? )
-    dup node-in-d {
-        { [ 2dup first node-class integer class<= not ] [ f ] }
-        { [ 2dup second node-literal integer? not ] [ f ] }
-        { [ 2dup second node-literal power-of-2? not ] [ f ] }
-        [ t ]
-    } cond 2nip ;
-
-: convert-mod-to-and? ( #call -- ? )
-    dup dup node-in-d first node-interval 0 [a,inf] interval-subset?
-    [ convert-rem-to-and? ] [ drop f ] if ;
-
-: convert-mod-to-and ( #call -- node )
-    dup
-    dup node-in-d second node-literal 1-
-    [ nip bitand ] curry f splice-quot ;
-
-\ mod [
-    {
-        {
-            [ dup convert-mod-to-and? ]
-            [ convert-mod-to-and ]
-        }
-    } define-optimizers
-] each-derived-op
-
-\ rem {
-    {
-        [ dup convert-rem-to-and? ]
-        [ convert-mod-to-and ]
-    }
-} define-optimizers
-
-: fixnumify-bitand? ( #call -- ? )
-    dup node-in-d second node-interval fixnum fits? ;
-
-: fixnumify-bitand ( #call -- node )
-    [ [ >fixnum ] bi@ fixnum-bitand ] f splice-quot ;
-
-\ bitand {
-    {
-        [ dup fixnumify-bitand? ]
-        [ fixnumify-bitand ]
-    }
-} define-optimizers
diff --git a/core/optimizer/math/partial/partial.factor b/core/optimizer/math/partial/partial.factor
deleted file mode 100644
index 8b5e25deb1..0000000000
--- a/core/optimizer/math/partial/partial.factor
+++ /dev/null
@@ -1,172 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel kernel.private math math.private words
-sequences parser namespaces assocs quotations arrays
-generic generic.math hashtables effects ;
-IN: optimizer.math.partial
-
-! Partial dispatch.
-
-! This code will be overhauled and generalized when
-! multi-methods go into the core.
-PREDICATE: math-partial < word
-    "derived-from" word-prop >boolean ;
-
-: fixnum-integer-op ( a b fix-word big-word -- c )
-    pick tag 0 eq? [
-        drop execute
-    ] [
-        >r drop >r fixnum>bignum r> r> execute
-    ] if ; inline
-
-: integer-fixnum-op ( a b fix-word big-word -- c )
-    >r pick tag 0 eq? [
-        r> drop execute
-    ] [
-        drop fixnum>bignum r> execute
-    ] if ; inline
-
-: integer-integer-op ( a b fix-word big-word -- c )
-    pick tag 0 eq? [
-        integer-fixnum-op
-    ] [
-        >r drop over tag 0 eq? [
-            >r fixnum>bignum r> r> execute
-        ] [
-            r> execute
-        ] if
-    ] if ; inline
-
-<<
-: integer-op-combinator ( triple -- word )
-    [
-        [ second word-name % "-" % ]
-        [ third word-name % "-op" % ]
-        bi
-    ] "" make in get lookup ;
-
-: integer-op-word ( triple fix-word big-word -- word )
-    [
-        drop
-        word-name "fast" tail? >r
-        [ "-" % ] [ word-name % ] interleave
-        r> [ "-fast" % ] when
-    ] "" make in get create ;
-
-: integer-op-quot ( word fix-word big-word -- quot )
-    rot integer-op-combinator 1quotation 2curry ;
-
-: define-integer-op-word ( word fix-word big-word -- )
-    [
-        [ integer-op-word ] [ integer-op-quot ] 3bi
-        2 1 <effect> define-declared
-    ]
-    [
-        [ integer-op-word ] [ 2drop ] 3bi
-        "derived-from" set-word-prop
-    ] 3bi ;
-
-: define-integer-op-words ( words fix-word big-word -- )
-    [ define-integer-op-word ] 2curry each ;
-
-: integer-op-triples ( word -- triples )
-    {
-        { fixnum integer }
-        { integer fixnum }
-        { integer integer }
-    } swap [ prefix ] curry map ;
-
-: define-integer-ops ( word fix-word big-word -- )
-    >r >r integer-op-triples r> r>
-    [ define-integer-op-words ]
-    [ [ 2drop ] [ [ integer-op-word ] 2curry map ] 3bi zip % ]
-    3bi ;
-
-: define-math-ops ( op -- )
-    { fixnum bignum float }
-    [ [ dup 3array ] [ swap method ] 2bi ] with { } map>assoc
-    [ nip ] assoc-filter
-    [ word-def peek ] assoc-map % ;
-
-SYMBOL: math-ops
-
-[
-    \ +       define-math-ops
-    \ -       define-math-ops
-    \ *       define-math-ops
-    \ shift   define-math-ops
-    \ mod     define-math-ops
-    \ /i      define-math-ops
-
-    \ bitand  define-math-ops
-    \ bitor   define-math-ops
-    \ bitxor  define-math-ops
-
-    \ <       define-math-ops
-    \ <=      define-math-ops
-    \ >       define-math-ops
-    \ >=      define-math-ops
-    \ number= define-math-ops
-
-    \ + \ fixnum+ \ bignum+ define-integer-ops
-    \ - \ fixnum- \ bignum- define-integer-ops
-    \ * \ fixnum* \ bignum* define-integer-ops
-    \ shift \ fixnum-shift \ bignum-shift define-integer-ops
-    \ mod \ fixnum-mod \ bignum-mod define-integer-ops
-    \ /i \ fixnum/i \ bignum/i define-integer-ops
-    
-    \ bitand \ fixnum-bitand \ bignum-bitand define-integer-ops
-    \ bitor \ fixnum-bitor \ bignum-bitor define-integer-ops
-    \ bitxor \ fixnum-bitxor \ bignum-bitxor define-integer-ops
-    
-    \ < \ fixnum< \ bignum< define-integer-ops
-    \ <= \ fixnum<= \ bignum<= define-integer-ops
-    \ > \ fixnum> \ bignum> define-integer-ops
-    \ >= \ fixnum>= \ bignum>= define-integer-ops
-    \ number= \ eq? \ bignum= define-integer-ops
-] { } make >hashtable math-ops set-global
-
-SYMBOL: fast-math-ops
-
-[
-    { { + fixnum fixnum } fixnum+fast } ,
-    { { - fixnum fixnum } fixnum-fast } ,
-    { { * fixnum fixnum } fixnum*fast } ,
-    { { shift fixnum fixnum } fixnum-shift-fast } ,
-
-    \ + \ fixnum+fast \ bignum+ define-integer-ops
-    \ - \ fixnum-fast \ bignum- define-integer-ops
-    \ * \ fixnum*fast \ bignum* define-integer-ops
-    \ shift \ fixnum-shift-fast \ bignum-shift define-integer-ops
-] { } make >hashtable fast-math-ops set-global
-
->>
-
-: math-op ( word left right -- word' ? )
-    3array math-ops get at* ;
-
-: math-method* ( word left right -- quot )
-    3dup math-op
-    [ >r 3drop r> 1quotation ] [ drop math-method ] if ;
-
-: math-both-known? ( word left right -- ? )
-    3dup math-op
-    [ 2drop 2drop t ]
-    [ drop math-class-max swap specific-method >boolean ] if ;
-
-: (derived-ops) ( word assoc -- words )
-    swap [ rot first eq? nip ] curry assoc-filter values ;
-
-: derived-ops ( word -- words )
-    [ 1array ]
-    [ math-ops get (derived-ops) ]
-    bi append ;
-
-: fast-derived-ops ( word -- words )
-    fast-math-ops get (derived-ops) ;
-
-: all-derived-ops ( word -- words )
-    [ derived-ops ] [ fast-derived-ops ] bi append ;
-
-: each-derived-op ( word quot -- )
-    >r derived-ops r> each ; inline
diff --git a/core/optimizer/math/summary.txt b/core/optimizer/math/summary.txt
deleted file mode 100644
index b89c9a8819..0000000000
--- a/core/optimizer/math/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Overflow check removal and mathematical identities
diff --git a/core/optimizer/optimizer-docs.factor b/core/optimizer/optimizer-docs.factor
deleted file mode 100755
index 4be1176cda..0000000000
--- a/core/optimizer/optimizer-docs.factor
+++ /dev/null
@@ -1,20 +0,0 @@
-USING: help.markup help.syntax quotations words math
-sequences ;
-IN: optimizer
-
-ARTICLE: "optimizer" "Optimizer"
-"The words in the " { $vocab-link "optimizer" } " vocabulary are internal to the compiler and user code has no reason to call them."
-$nl
-"The main entry point into the optimizer:"
-{ $subsection optimize }
-{ $subsection "specializers" } ;
-
-ABOUT: "optimizer"
-
-HELP: optimize-1
-{ $values { "node" "a dataflow graph" } { "newnode" "a dataflow graph" } { "?" "a boolean" } }
-{ $description "Performs a single round of optimization on the dataflow graph, and outputs the new graph together with a new flag indicating if any changes were made." } ;
-
-HELP: optimize
-{ $values { "node" "a dataflow graph" } { "newnode" "a dataflow graph" } }
-{ $description "Continues to optimize a dataflow graph until a fixed point is reached." } ;
diff --git a/core/optimizer/optimizer.factor b/core/optimizer/optimizer.factor
deleted file mode 100755
index 23cba3ea4c..0000000000
--- a/core/optimizer/optimizer.factor
+++ /dev/null
@@ -1,26 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel namespaces optimizer.backend optimizer.def-use
-optimizer.known-words optimizer.math optimizer.control
-optimizer.collect optimizer.inlining inference.class ;
-IN: optimizer
-
-: optimize-1 ( node -- newnode ? )
-    [
-        H{ } clone class-substitutions set
-        H{ } clone literal-substitutions set
-        H{ } clone value-substitutions set
-
-        collect-label-infos
-        compute-def-use
-        kill-values
-        detect-loops
-        infer-classes
-
-        optimizer-changed off
-        optimize-nodes
-        optimizer-changed get
-    ] with-scope ;
-
-: optimize ( node -- newnode )
-    optimize-1 [ optimize ] when ;
diff --git a/core/optimizer/pattern-match/pattern-match.factor b/core/optimizer/pattern-match/pattern-match.factor
deleted file mode 100755
index 51fa254a25..0000000000
--- a/core/optimizer/pattern-match/pattern-match.factor
+++ /dev/null
@@ -1,32 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-IN: optimizer.pattern-match
-USING: kernel sequences inference namespaces generic
-combinators classes classes.algebra inference.dataflow ;
-
-! Funny pattern matching
-SYMBOL: @
-
-: match-@ ( value -- ? )
-    #! All @ must be eq
-    @ get [ eq? ] [ @ set t ] if* ;
-
-: match-class ( value spec -- ? )
-    >r node get swap node-class r> class<= ;
-
-: value-match? ( value spec -- ? )
-    {
-        { [ dup @ eq? ] [ drop match-@ ] }
-        { [ dup class? ] [ match-class ] }
-        { [ over value? not ] [ 2drop f ] }
-        [ swap value-literal = ]
-    } cond ;
-
-: node-match? ( node values pattern -- ? )
-    [
-        rot node set @ off
-        [ value-match? ] 2all?
-    ] with-scope ;
-
-: in-d-match? ( node pattern -- ? )
-    >r dup node-in-d r> node-match? ;
diff --git a/core/optimizer/pattern-match/summary.txt b/core/optimizer/pattern-match/summary.txt
deleted file mode 100644
index 7f7c1c4a7d..0000000000
--- a/core/optimizer/pattern-match/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Simple pattern matching used by optimizer
diff --git a/core/optimizer/specializers/specializers-docs.factor b/core/optimizer/specializers/specializers-docs.factor
deleted file mode 100755
index de5d5d7a1f..0000000000
--- a/core/optimizer/specializers/specializers-docs.factor
+++ /dev/null
@@ -1,26 +0,0 @@
-IN: optimizer.specializers
-USING: help.markup help.syntax sequences words quotations ;
-
-ARTICLE: "specializers" "Word specializers"
-"The optimizer can be passed hints as to the classes of parameters a word is expected to be called with. The optimizer will then generate multiple versions of word when compiling, specialized to each class."
-$nl
-"Specialization hints are stored in the " { $snippet "\"specializer\"" } " word property. The value of this property is either a sequence of classes, or a sequence of sequences of classes. Each element in the sequence (or the sequence itself, in the former case) is a specialization hint."
-$nl
-"Specialization can help in the case where a word calls a lot of generic words on the same object - perhaps in a loop - and in most cases, it is anticipated that this object is of a certain class. Using specialization hints, the compiler can be instructed to compile a branch at the beginning of the word; if the branch is taken, the input object has the assumed class, and inlining of generic methods can take place."
-$nl
-"Specialization hints are not declarations; if the inputs do not match what is specified, the word will still run, possibly slower if the compiled code cannot inline methods because of insufficient static type information."
-$nl
-"In some cases, specialization will not help at all, and can make generated code slower from the increase in code size. The compiler is capable of inferring enough static type information to generate efficient code in many cases without explicit help from the programmer. Specializers should be used as a last resort, after profiling shows that a critical loop makes a lot of repeated calls to generic words which dispatch on the same class."
-$nl
-"For example, the " { $link append } " word has a specializer for the very common case where two strings or two arrays are appended:"
-{ $code
-"\\ append"
-"{ { string string } { array array } }"
-"\"specializer\" set-word-prop"
-}
-"The specialized version of a word which will be compiled by the compiler can be inspected:"
-{ $subsection specialized-def } ;
-
-HELP: specialized-def
-{ $values { "word" word } { "quot" quotation } }
-{ $description "Outputs the definition of a word after it has been split into specialized branches. This is the definition which will actually be compiled by the compiler." } ;
diff --git a/core/optimizer/specializers/specializers.factor b/core/optimizer/specializers/specializers.factor
deleted file mode 100755
index c3702e9805..0000000000
--- a/core/optimizer/specializers/specializers.factor
+++ /dev/null
@@ -1,64 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays generic hashtables kernel kernel.private math
-namespaces sequences vectors words strings layouts combinators
-sequences.private classes generic.standard
-generic.standard.engines assocs ;
-IN: optimizer.specializers
-
-: (make-specializer) ( class picker -- quot )
-    swap "predicate" word-prop append ;
-
-: make-specializer ( classes -- quot )
-    dup length <reversed>
-    [ (picker) 2array ] 2map
-    [ drop object eq? not ] assoc-filter
-    dup empty? [ drop [ t ] ] [
-        [ (make-specializer) ] { } assoc>map
-        unclip [ swap [ f ] \ if 3array append [ ] like ] reduce
-    ] if ;
-
-: tag-specializer ( quot -- newquot )
-    [
-        [ dup tag ] %
-        num-tags get swap <array> ,
-        \ dispatch ,
-    ] [ ] make ;
-
-: specializer-cases ( quot word -- default alist )
-    dup [ array? ] all? [ 1array ] unless [
-        [ make-specializer ] keep
-        [ declare ] curry pick append
-    ] { } map>assoc ;
-
-: method-declaration ( method -- quot )
-    dup "method-generic" word-prop dispatch# object <array>
-    swap "method-class" word-prop prefix ;
-
-: specialize-method ( quot method -- quot' )
-    method-declaration [ declare ] curry prepend ;
-
-: specialize-quot ( quot specializer -- quot' )
-    dup { number } = [
-        drop tag-specializer
-    ] [
-        specializer-cases alist>quot
-    ] if ;
-
-: standard-method? ( method -- ? )
-    dup method-body? [
-        "method-generic" word-prop standard-generic?
-    ] [ drop f ] if ;
-
-: specialized-def ( word -- quot )
-    dup word-def swap {
-        { [ dup standard-method? ] [ specialize-method ] }
-        {
-            [ dup "specializer" word-prop ]
-            [ "specializer" word-prop specialize-quot ]
-        }
-        [ drop ]
-    } cond ;
-
-: specialized-length ( specializer -- n )
-    dup [ array? ] all? [ first ] when length ;
diff --git a/core/optimizer/summary.txt b/core/optimizer/summary.txt
deleted file mode 100644
index 65cf363dde..0000000000
--- a/core/optimizer/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Dataflow IR optimizer
diff --git a/core/optimizer/tags.txt b/core/optimizer/tags.txt
deleted file mode 100644
index 86a7c8e637..0000000000
--- a/core/optimizer/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-compiler
diff --git a/core/parser/parser-docs.factor b/core/parser/parser-docs.factor
index 418278baee..1d8d1f0714 100755
--- a/core/parser/parser-docs.factor
+++ b/core/parser/parser-docs.factor
@@ -1,7 +1,7 @@
 USING: help.markup help.syntax kernel sequences words
 math strings vectors quotations generic effects classes
 vocabs.loader definitions io vocabs source-files
-quotations namespaces compiler.units assocs ;
+quotations namespaces compiler.units assocs lexer ;
 IN: parser
 
 ARTICLE: "vocabulary-search-shadow" "Shadowing word names"
@@ -117,55 +117,33 @@ $nl
 { $subsection parse-tokens } ;
 
 ARTICLE: "parsing-words" "Parsing words"
-"The Factor parser is follows a simple recursive-descent design. The parser reads successive tokens from the input; if the token identifies a number or an ordinary word, it is added to an accumulator vector. Otherwise if the token identifies a parsing word, the parsing word is executed immediately."
+"The Factor parser follows a simple recursive-descent design. The parser reads successive tokens from the input; if the token identifies a number or an ordinary word, it is added to an accumulator vector. Otherwise if the token identifies a parsing word, the parsing word is executed immediately."
 $nl
 "Parsing words are marked by suffixing the definition with a " { $link POSTPONE: parsing } " declaration. Here is the simplest possible parsing word; it prints a greeting at parse time:"
 { $code ": hello \"Hello world\" print ; parsing" }
-"Parsing words must have stack effect " { $snippet "( accum -- accum )" } ", where " { $snippet "accum" } " is the accumulator vector supplied by the parser. Parsing words can read input, add word definitions to the dictionary, and do anything an ordinary word can."
+"Parsing words must not pop or push items from the stack; however, they are permitted to access the accumulator vector supplied by the parser at the top of the stack. That is, parsing words must have stack effect " { $snippet "( accum -- accum )" } ", where " { $snippet "accum" } " is the accumulator vector supplied by the parser."
+$nl
+"Parsing words can read input, add word definitions to the dictionary, and do anything an ordinary word can."
+$nl
+"Because of the stack restriction, parsing words cannot pass data to other words by leaving values on the stack; instead, use " { $link parsed } " to add the data to the parse tree so that it can be evaluated later."
 $nl
 "Parsing words cannot be called from the same source file where they are defined, because new definitions are only compiled at the end of the source file. An attempt to use a parsing word in its own source file raises an error:"
-{ $link staging-violation }
+{ $subsection staging-violation }
 "Tools for implementing parsing words:"
 { $subsection "reading-ahead" }
 { $subsection "parsing-word-nest" }
 { $subsection "defining-words" }
 { $subsection "parsing-tokens" } ;
 
-ARTICLE: "parser-lexer" "The lexer"
-"Two variables that encapsulate internal parser state:"
-{ $subsection file }
-{ $subsection lexer }
-"Creating a default lexer:"
-{ $subsection <lexer> }
-"A word to test of the end of input has been reached:"
-{ $subsection still-parsing? }
-"A word to advance the lexer to the next line:"
-{ $subsection next-line }
-"Two generic words to override the lexer's token boundary detection:"
-{ $subsection skip-blank }
-{ $subsection skip-word }
-"A utility used when parsing string literals:"
-{ $subsection parse-string }
-"The parser can be invoked with a custom lexer:"
-{ $subsection (parse-lines) }
-{ $subsection with-parser } ;
-
 ARTICLE: "parser-files" "Parsing source files"
 "The parser can run source files:"
 { $subsection run-file }
 { $subsection parse-file }
-{ $subsection bootstrap-file }
 "The parser cross-references source files and definitions. This allows it to keep track of removed definitions, and prevent forward references and accidental redefinitions."
 $nl
 "While the above words are useful for one-off experiments, real programs should be written to use the vocabulary system instead; see " { $link "vocabs.loader" } "."
 { $see-also "source-files" } ;
 
-ARTICLE: "parser-usage" "Reflective parser usage"
-"The parser can be called on a string:"
-{ $subsection eval }
-"The parser can also parse from a stream:"
-{ $subsection parse-stream } ;
-
 ARTICLE: "top-level-forms" "Top level forms"
 "Any code outside of a definition is known as a " { $emphasis "top-level form" } "; top-level forms are run after the entire source file has been parsed, regardless of their position in the file."
 $nl
@@ -179,34 +157,16 @@ $nl
 "This section concerns itself with usage and extension of the parser. Standard syntax is described in " { $link "syntax" } "."
 { $subsection "vocabulary-search" }
 { $subsection "parser-files" }
-{ $subsection "parser-usage" }
 { $subsection "top-level-forms" }
 "The parser can be extended."
 { $subsection "parsing-words" }
 { $subsection "parser-lexer" }
+"The parser can be invoked reflectively;"
+{ $subsection parse-stream }
 { $see-also "definitions" "definition-checking" } ;
 
 ABOUT: "parser"
 
-: $parsing-note
-    drop
-    "This word should only be called from parsing words."
-    $notes ;
-
-HELP: lexer
-{ $var-description "Stores the current " { $link lexer } " instance." }
-{ $class-description "An object for tokenizing parser input. It has the following slots:"
-    { $list
-        { { $link lexer-text } " - the lines being parsed; an array of strings" }
-        { { $link lexer-line } " - the line number being parsed; unlike most indices this is 1-based for friendlier error reporting and integration with text editors" }
-        { { $link lexer-column } " - the current column position, zero-based" }
-    }
-"Custom lexing can be implemented by delegating a tuple to an instance of this class and implementing the " { $link skip-word } " and " { $link skip-blank } " generic words." } ;
-
-HELP: <lexer>
-{ $values { "text" "a sequence of strings" } { "lexer" lexer } }
-{ $description "Creates a new lexer for tokenizing the given sequence of lines." } ;
-
 HELP: location
 { $values { "loc" "a " { $snippet "{ path line# }" } " pair" } }
 { $description "Outputs the current parser location. This value can be passed to " { $link set-where } " or " { $link remember-definition } "." } ;
@@ -222,73 +182,9 @@ HELP: parser-notes?
 { $values { "?" "a boolean" } }
 { $description "Tests if the parser will print various notes and warnings. To disable parser notes, either set " { $link parser-notes } " to " { $link f } ", or pass the " { $snippet "-quiet" } " command line switch." } ;
 
-HELP: next-line
-{ $values { "lexer" lexer } }
-{ $description "Advances the lexer to the next input line, discarding the remainder of the current line." } ;
-
-HELP: parse-error
-{ $error-description "Thrown when the parser encounters invalid input. A parse error wraps an underlying error and holds the file being parsed, line number, and column number." } ;
-
-HELP: <parse-error>
-{ $values { "msg" "an error" } { "error" parse-error } }
-{ $description "Creates a new " { $link parse-error } ", filling in the location information from the current " { $link lexer } "." } ;
-
-HELP: skip
-{ $values { "i" "a starting index" } { "seq" sequence } { "?" "a boolean" } { "n" integer } }
-{ $description "Skips to the first space character (if " { $snippet "boolean" } " is " { $link f } ") or the first non-space character (otherwise)." } ;
-
-HELP: change-lexer-column
-{ $values { "lexer" lexer } { "quot" "a quotation with stack effect " { $snippet "( col line -- newcol )" } } }
-{ $description "Applies a quotation to the current column and line text to produce a new column, and moves the lexer position." } ;
-
-HELP: skip-blank
-{ $values { "lexer" lexer } }
-{ $contract "Skips whitespace characters." }
-{ $notes "Custom lexers can implement this generic word." } ;
-
-HELP: skip-word
-{ $values { "lexer" lexer } }
-{ $contract
-    "Skips until the end of the current token."
-    $nl
-    "The default implementation treats a single " { $snippet "\"" } " as a word by itself; otherwise it searches forward until a whitespace character or the end of the line."
-}
-{ $notes "Custom lexers can implement this generic word." } ;
-
-HELP: still-parsing-line?
-{ $values { "lexer" lexer } { "?" "a boolean" } }
-{ $description "Outputs " { $link f } " if the end of the current line has been reached, " { $link t } " otherwise." } ;
-
-HELP: parse-token
-{ $values { "lexer" lexer } { "str/f" "a " { $link string } " or " { $link f } } }
-{ $description "Reads the next token from the lexer. Tokens are delimited by whitespace, with the exception that " { $snippet "\"" } " is treated like a single token even when not followed by whitespace." } ;
-
-HELP: scan
-{ $values { "str/f" "a " { $link string } " or " { $link f } } }
-{ $description "Reads the next token from the lexer. See " { $link parse-token } " for details." }
-$parsing-note ;
-
-HELP: bad-escape
-{ $error-description "Indicates the parser encountered an invalid escape code following a backslash (" { $snippet "\\" } ") in a string literal. See " { $link "escape" } " for a list of valid escape codes." } ;
-
 HELP: bad-number
 { $error-description "Indicates the parser encountered an invalid numeric literal." } ;
 
-HELP: escape
-{ $values { "escape" "a single-character escape" } { "ch" "a character" } }
-{ $description "Converts from a single-character escape code and the corresponding character." }
-{ $examples { $example "USING: kernel parser prettyprint ;" "CHAR: n escape CHAR: \\n = ." "t" } } ;
-
-HELP: parse-string
-{ $values { "str" "a new " { $link string } } }
-{ $description "Parses the line until a quote (\"), interpreting escape codes along the way." }
-{ $errors "Throws an error if the string contains an invalid escape sequence." }
-$parsing-note ;
-
-HELP: still-parsing?
-{ $values { "lexer" lexer } { "?" "a boolean" } }
-{ $description "Outputs " { $link f } " if end of input has been reached, " { $link t } " otherwise." } ;
-
 HELP: use
 { $var-description "A variable holding the current vocabulary search path as a sequence of assocs." } ;
 
@@ -334,12 +230,6 @@ HELP: create-in
 { $description "Creates a word in the current vocabulary. Until re-defined, the word throws an error when invoked." }
 $parsing-note ;
 
-HELP: parse-tokens
-{ $values { "end" string } { "seq" "a new sequence of strings" } }
-{ $description "Reads a sequence of tokens until the first occurrence of " { $snippet "end" } ". The tokens remain as strings and are not processed in any way." }
-{ $examples "This word is used to implement " { $link POSTPONE: USING: } "." }
-$parsing-note ;
-
 HELP: CREATE
 { $values { "word" word } }
 { $description "Reads the next token from the line currently being parsed, and creates a word with that name in the current vocabulary." }
@@ -365,31 +255,6 @@ HELP: scan-word
 { $errors "Throws an error if the token does not name a word, and does not parse as a number." }
 $parsing-note ;
 
-HELP: invalid-slot-name
-{ $values { "name" string } }
-{ $description "Throws an " { $link invalid-slot-name } " error." }
-{ $error-description "Thrown by " { $link POSTPONE: TUPLE: } " and " { $link POSTPONE: ERROR: } " if a suspect token appears as a slot name." }
-{ $notes "The suspect tokens are chosen so that the following code raises this parse error, instead of silently greating a tuple with garbage slots:"
-    { $code
-        "TUPLE: my-mistaken-tuple slot-a slot-b"
-        ""
-        ": some-word ( a b c -- ) ... ;"
-    }
-} ;
-
-HELP: unexpected
-{ $values { "want" "a " { $link word } " or " { $link f } } { "got" word } }
-{ $description "Throws an " { $link unexpected } " error." }
-{ $error-description "Thrown by the parser if an unmatched closing delimiter is encountered." }
-{ $examples
-    "Parsing the following snippet will throw this error:"
-    { $code "[ 1 2 3 }" }
-} ;
-
-HELP: unexpected-eof
-{ $values { "word" "a " { $link word } } }
-{ $description "Throws an " { $link unexpected } " error indicating the parser was looking for an occurrence of " { $snippet "word" } " but encountered end of file." } ;
-
 HELP: parse-step
 { $values { "accum" vector } { "end" word } { "?" "a boolean" } }
 { $description "Parses a token. If the token is a number or an ordinary word, it is added to the accumulator. If it is a parsing word, calls the parsing word with the accumulator on the stack. Outputs " { $link f } " if " { $snippet "end" } " is encountered, " { $link t } " otherwise." }
@@ -413,28 +278,15 @@ HELP: parsed
 { $description "Convenience word for parsing words. It behaves exactly the same as " { $link push } ", except the accumulator remains on the stack." }
 $parsing-note ;
 
-HELP: with-parser
-{ $values { "lexer" lexer } { "quot" "a quotation with stack effect " { $snippet "( -- accum )" } } { "newquot" "a new " { $link quotation } } }
-{ $description "Sets up the parser and calls the quotation. The quotation can make use of parsing words such as " { $link scan } " and " { $link parse-until } ". It must yield a sequence, which is converted to a quotation and output. Any errors thrown by the quotation are wrapped in parse errors." } ;
-
 HELP: (parse-lines)
 { $values { "lexer" lexer } { "quot" "a new " { $link quotation } } }
 { $description "Parses Factor source code using a custom lexer. The vocabulary search path is taken from the current scope." }
-{ $errors "Throws a " { $link parse-error } " if the input is malformed." } ;
+{ $errors "Throws a " { $link lexer-error } " if the input is malformed." } ;
 
 HELP: parse-lines
 { $values { "lines" "a sequence of strings" } { "quot" "a new " { $link quotation } } }
 { $description "Parses Factor source code which has been tokenized into lines. The vocabulary search path is taken from the current scope." }
-{ $errors "Throws a " { $link parse-error } " if the input is malformed." } ;
-
-HELP: lexer-factory
-{ $var-description "A variable holding a quotation with stack effect " { $snippet "( lines -- lexer )" } ". This quotation is called by the parser to create " { $link lexer } " instances. This variable can be rebound to a quotation which outputs a custom tuple delegating to " { $link lexer } " to customize syntax." } ;
-
-HELP: parse-effect
-{ $values { "effect" "an instance of " { $link effect } } }
-{ $description "Parses a stack effect from the current input line." }
-{ $examples "This word is used by " { $link POSTPONE: ( } " to parse stack effect declarations." }
-$parsing-note ;
+{ $errors "Throws a " { $link lexer-error } " if the input is malformed." } ;
 
 HELP: parse-base
 { $values { "base" "an integer between 2 and 36" } { "parsed" integer } }
@@ -465,11 +317,6 @@ HELP: parse-fresh
 { $description "Parses Factor source code in a sequence of lines. The initial vocabulary search path is used (see " { $link with-file-vocabs } ")." }
 { $errors "Throws a parse error if the input is malformed." } ;
 
-HELP: eval
-{ $values { "str" string } }
-{ $description "Parses Factor source code from a string, and calls the resulting quotation." }
-{ $errors "Throws an error if the input is malformed, or if the evaluation itself throws an error." } ;
-
 HELP: filter-moved
 { $values { "assoc1" assoc } { "assoc2" assoc } { "seq" "an seqence of definitions" } }
 { $description "Removes all definitions from " { $snippet "assoc2" } " which are in " { $snippet "assoc1" } " or are are no longer present in the current " { $link file } "." } ;
@@ -501,14 +348,6 @@ HELP: ?run-file
 { $values { "path" "a pathname string" } }
 { $description "If the file exists, runs it with " { $link run-file } ", otherwise does nothing." } ;
 
-HELP: bootstrap-file
-{ $values { "path" "a pathname string" } }
-{ $description "If bootstrapping, parses the source file and adds its top level form to the quotation being constructed with " { $link make } "; the bootstrap code uses this to build up a boot quotation to be run on image startup. If not bootstrapping, just runs the file normally." } ;
-
-HELP: eval>string
-{ $values { "str" string } { "output" string } }
-{ $description "Evaluates the Factor code in " { $snippet "str" } " with " { $link output-stream } " rebound to a string output stream, then outputs the resulting string." } ;
-
 HELP: staging-violation
 { $values { "word" word } }
 { $description "Throws a " { $link staging-violation } " error." }
diff --git a/core/parser/parser-tests.factor b/core/parser/parser-tests.factor
index df6c9dadc5..c4fb977ebb 100755
--- a/core/parser/parser-tests.factor
+++ b/core/parser/parser-tests.factor
@@ -2,8 +2,7 @@ USING: arrays math parser tools.test kernel generic words
 io.streams.string namespaces classes effects source-files
 assocs sequences strings io.files definitions continuations
 sorting classes.tuple compiler.units debugger vocabs
-vocabs.loader accessors ;
-
+vocabs.loader accessors eval combinators ;
 IN: parser.tests
 
 [
@@ -63,7 +62,7 @@ IN: parser.tests
     : baz ( a b -- * ) 2array throw ;
 
     [ t ]
-    [ \ baz "declared-effect" word-prop effect-terminated? ]
+    [ \ baz "declared-effect" word-prop terminated?>> ]
     unit-test
 
     [ ] [ "IN: parser.tests USE: math : effect-parsing-test ( a b -- d ) - ;" eval ] unit-test
@@ -121,7 +120,7 @@ IN: parser.tests
         "IN: parser.tests : smudge-me ;" <string-reader> "foo"
         parse-stream drop
 
-        "foo" source-file source-file-definitions first assoc-size
+        "foo" source-file definitions>> first assoc-size
     ] unit-test
 
     [ t ] [ "smudge-me" "parser.tests" lookup >boolean ] unit-test
@@ -138,21 +137,21 @@ IN: parser.tests
         "IN: parser.tests USING: math strings ; GENERIC: smudge-me M: integer smudge-me ; M: string smudge-me ;" <string-reader> "foo"
         parse-stream drop
 
-        "foo" source-file source-file-definitions first assoc-size
+        "foo" source-file definitions>> first assoc-size
     ] unit-test
 
     [ 1 ] [
         "IN: parser.tests USING: arrays ; M: array smudge-me ;" <string-reader> "bar"
         parse-stream drop
 
-        "bar" source-file source-file-definitions first assoc-size
+        "bar" source-file definitions>> first assoc-size
     ] unit-test
 
     [ 2 ] [
         "IN: parser.tests USING: math strings ; GENERIC: smudge-me M: integer smudge-me ;" <string-reader> "foo"
         parse-stream drop
 
-        "foo" source-file source-file-definitions first assoc-size
+        "foo" source-file definitions>> first assoc-size
     ] unit-test
     
     [ t ] [
@@ -198,7 +197,7 @@ IN: parser.tests
     [
         "IN: parser.tests : x ; : y 3 throw ; this is an error"
         <string-reader> "a" parse-stream
-    ] [ parse-error? ] must-fail-with
+    ] [ source-file-error? ] must-fail-with
 
     [ t ] [
         "y" "parser.tests" lookup >boolean
@@ -298,12 +297,12 @@ IN: parser.tests
     [
         "IN: parser.tests TUPLE: another-pred-test ; GENERIC: another-pred-test?"
         <string-reader> "removing-the-predicate" parse-stream
-    ] [ error>> error>> redefine-error? ] must-fail-with
+    ] [ error>> error>> error>> redefine-error? ] must-fail-with
 
     [
         "IN: parser.tests TUPLE: class-redef-test ; TUPLE: class-redef-test ;"
         <string-reader> "redefining-a-class-1" parse-stream
-    ] [ error>> error>> redefine-error? ] must-fail-with
+    ] [ error>> error>> error>> redefine-error? ] must-fail-with
 
     [ ] [
         "IN: parser.tests TUPLE: class-redef-test ; SYMBOL: class-redef-test"
@@ -313,7 +312,7 @@ IN: parser.tests
     [
         "IN: parser.tests TUPLE: class-redef-test ; SYMBOL: class-redef-test : class-redef-test ;"
         <string-reader> "redefining-a-class-3" parse-stream drop
-    ] [ error>> error>> redefine-error? ] must-fail-with
+    ] [ error>> error>> error>> redefine-error? ] must-fail-with
 
     [ ] [
         "IN: parser.tests TUPLE: class-fwd-test ;"
@@ -323,7 +322,7 @@ IN: parser.tests
     [
         "IN: parser.tests \\ class-fwd-test"
         <string-reader> "redefining-a-class-3" parse-stream drop
-    ] [ error>> error>> no-word-error? ] must-fail-with
+    ] [ error>> error>> error>> no-word-error? ] must-fail-with
 
     [ ] [
         "IN: parser.tests TUPLE: class-fwd-test ; SYMBOL: class-fwd-test"
@@ -333,12 +332,12 @@ IN: parser.tests
     [
         "IN: parser.tests \\ class-fwd-test"
         <string-reader> "redefining-a-class-3" parse-stream drop
-    ] [ error>> error>> no-word-error? ] must-fail-with
+    ] [ error>> error>> error>> no-word-error? ] must-fail-with
 
     [
         "IN: parser.tests : foo ; TUPLE: foo ;"
         <string-reader> "redefining-a-class-4" parse-stream drop
-    ] [ error>> error>> redefine-error? ] must-fail-with
+    ] [ error>> error>> error>> redefine-error? ] must-fail-with
 
     [ ] [
         "IN: parser.tests : foo ( x y -- z ) 1 2 ; : bar ( a -- b ) ;" eval
@@ -401,7 +400,7 @@ IN: parser.tests
 ] times
 
 [ "resource:core/parser/test/assert-depth.factor" run-file ]
-[ relative-overflow-stack { 1 2 3 } sequence= ]
+[ stack>> { 1 2 3 } sequence= ]
 must-fail-with
 
 2 [
@@ -421,8 +420,6 @@ must-fail-with
     ] unit-test
 ] times
 
-[ ] [ "parser" reload ] unit-test
-
 [ ] [
     [ "this-better-not-exist" forget-vocab ] with-compilation-unit
 ] unit-test
@@ -487,3 +484,9 @@ must-fail-with
 [ t ] [ "staging-problem-test-2" "parser.tests" lookup >boolean ] unit-test
 
 [ "DEFER: blah" eval ] [ error>> no-current-vocab? ] must-fail-with
+
+[
+    "IN: parser.tests : blah ; parsing FORGET: blah" eval
+] [
+    error>> staging-violation?
+] must-fail-with
diff --git a/core/parser/parser.factor b/core/parser/parser.factor
index 46e93753b5..a86715b073 100755
--- a/core/parser/parser.factor
+++ b/core/parser/parser.factor
@@ -1,41 +1,20 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays definitions generic assocs kernel math namespaces
-prettyprint sequences strings vectors words quotations inspector
-io.styles io combinators sorting splitting math.parser effects
-continuations debugger io.files io.streams.string vocabs
-io.encodings.utf8 source-files classes classes.tuple hashtables
-compiler.errors compiler.units accessors sets ;
+sequences strings vectors words quotations io
+combinators sorting splitting math.parser effects continuations
+io.files io.streams.string vocabs io.encodings.utf8 source-files
+classes hashtables compiler.errors compiler.units accessors sets
+lexer ;
 IN: parser
 
-TUPLE: lexer text line line-text line-length column ;
-
-: next-line ( lexer -- )
-    dup [ line>> ] [ text>> ] bi ?nth >>line-text
-    dup line-text>> length >>line-length
-    [ 1+ ] change-line
-    0 >>column
-    drop ;
-
-: new-lexer ( text class -- lexer )
-    new
-        0 >>line
-        swap >>text
-    dup next-line ; inline
-
-: <lexer> ( text -- lexer )
-    lexer new-lexer ;
-
 : location ( -- loc )
-    file get lexer get lexer-line 2dup and
-    [ >r source-file-path r> 2array ] [ 2drop f ] if ;
+    file get lexer get line>> 2dup and
+    [ >r path>> r> 2array ] [ 2drop f ] if ;
 
 : save-location ( definition -- )
     location remember-definition ;
 
-: save-class-location ( class -- )
-    location remember-class ;
-
 SYMBOL: parser-notes
 
 t parser-notes set-global
@@ -43,161 +22,16 @@ t parser-notes set-global
 : parser-notes? ( -- ? )
     parser-notes get "quiet" get not and ;
 
-: file. ( file -- )
-    [
-        source-file-path <pathname> pprint
-    ] [
-        "<interactive>" write
-    ] if* ":" write ;
-
 : note. ( str -- )
     parser-notes? [
-        file get file.
-        lexer get [
-            lexer-line number>string print
-        ] [
-            nl
-        ] if*
+        file get [ path>> write ":" write ] when* 
+        lexer get line>> number>string write ": " write
         "Note: " write dup print
     ] when drop ;
 
-: skip ( i seq ? -- n )
-    over >r
-    [ swap CHAR: \s eq? xor ] curry find-from drop
-    [ r> drop ] [ r> length ] if* ;
-
-: change-lexer-column ( lexer quot -- )
-    swap
-    [ dup lexer-column swap lexer-line-text rot call ] keep
-    set-lexer-column ; inline
-
-GENERIC: skip-blank ( lexer -- )
-
-M: lexer skip-blank ( lexer -- )
-    [ t skip ] change-lexer-column ;
-
-GENERIC: skip-word ( lexer -- )
-
-M: lexer skip-word ( lexer -- )
-    [
-        2dup nth CHAR: " eq? [ drop 1+ ] [ f skip ] if
-    ] change-lexer-column ;
-
-: still-parsing? ( lexer -- ? )
-    dup lexer-line swap lexer-text length <= ;
-
-: still-parsing-line? ( lexer -- ? )
-    dup lexer-column swap lexer-line-length < ;
-
-: (parse-token) ( lexer -- str )
-    [ lexer-column ] keep
-    [ skip-word ] keep
-    [ lexer-column ] keep
-    lexer-line-text subseq ;
-
-:  parse-token ( lexer -- str/f )
-    dup still-parsing? [
-        dup skip-blank
-        dup still-parsing-line?
-        [ (parse-token) ] [ dup next-line parse-token ] if
-    ] [ drop f ] if ;
-
-: scan ( -- str/f ) lexer get parse-token ;
-
-ERROR: bad-escape ;
-
-M: bad-escape summary drop "Bad escape code" ;
-
-: escape ( escape -- ch )
-    H{
-        { CHAR: a  CHAR: \a }
-        { CHAR: e  CHAR: \e }
-        { CHAR: n  CHAR: \n }
-        { CHAR: r  CHAR: \r }
-        { CHAR: t  CHAR: \t }
-        { CHAR: s  CHAR: \s }
-        { CHAR: \s CHAR: \s }
-        { CHAR: 0  CHAR: \0 }
-        { CHAR: \\ CHAR: \\ }
-        { CHAR: \" CHAR: \" }
-    } at [ bad-escape ] unless* ;
-
-SYMBOL: name>char-hook
-
-name>char-hook global [
-    [ "Unicode support not available" throw ] or
-] change-at
-
-: unicode-escape ( str -- ch str' )
-    "{" ?head-slice [
-        CHAR: } over index cut-slice
-        >r >string name>char-hook get call r>
-        rest-slice
-    ] [
-        6 cut-slice >r hex> r>
-    ] if ;
-
-: next-escape ( str -- ch str' )
-    "u" ?head-slice [
-        unicode-escape
-    ] [
-        unclip-slice escape swap
-    ] if ;
-
-: (parse-string) ( str -- m )
-    dup [ "\"\\" member? ] find dup [
-        >r cut-slice >r % r> rest-slice r>
-        dup CHAR: " = [
-            drop slice-from
-        ] [
-            drop next-escape >r , r> (parse-string)
-        ] if
-    ] [
-        "Unterminated string" throw
-    ] if ;
-
-: parse-string ( -- str )
-    lexer get [
-        [ swap tail-slice (parse-string) ] "" make swap
-    ] change-lexer-column ;
-
-TUPLE: parse-error file line column line-text error ;
-
-: <parse-error> ( msg -- error )
-    \ parse-error new
-        file get >>file
-        lexer get line>> >>line
-        lexer get column>> >>column
-        lexer get line-text>> >>line-text
-        swap >>error ;
-
-: parse-dump ( error -- )
-    {
-        [ file>> file. ]
-        [ line>> number>string print ]
-        [ line-text>> dup string? [ print ] [ drop ] if ]
-        [ column>> 0 or CHAR: \s <string> write ]
-    } cleave
-    "^" print ;
-
-M: parse-error error.
-    [ parse-dump ] [ error>> error. ] bi ;
-
-M: parse-error summary
-    error>> summary ;
-
-M: parse-error compute-restarts
-    error>> compute-restarts ;
-
-M: parse-error error-help
-    error>> error-help ;
-
 SYMBOL: use
 SYMBOL: in
 
-: word/vocab% ( word -- )
-    "(" % dup word-vocabulary % " " % word-name % ")" % ;
-
 : (use+) ( vocab -- )
     vocab-words use get push ;
 
@@ -216,28 +50,10 @@ SYMBOL: in
 : set-in ( name -- )
     check-vocab-string dup in set create-vocab (use+) ;
 
-ERROR: unexpected want got ;
-
-PREDICATE: unexpected-eof < unexpected
-    unexpected-got not ;
-
-: unexpected-eof ( word -- * ) f unexpected ;
-
-: (parse-tokens) ( accum end -- accum )
-    scan 2dup = [
-        2drop
-    ] [
-        [ pick push (parse-tokens) ] [ unexpected-eof ] if*
-    ] if ;
-
-: parse-tokens ( end -- seq )
-    100 <vector> swap (parse-tokens) >array ;
+M: parsing-word stack-effect drop (( parsed -- parsed )) ;
 
 ERROR: no-current-vocab ;
 
-M: no-current-vocab summary ( obj -- )
-    drop "Not in a vocabulary; IN: form required" ;
-
 : current-vocab ( -- str )
     in get [ no-current-vocab ] unless* ;
 
@@ -246,33 +62,22 @@ M: no-current-vocab summary ( obj -- )
 
 : CREATE ( -- word ) scan create-in ;
 
-: CREATE-GENERIC ( -- word ) CREATE dup reset-word ;
-
 : CREATE-WORD ( -- word ) CREATE dup reset-generic ;
 
-: create-class-in ( word -- word )
-    current-vocab create
-    dup save-class-location
-    dup predicate-word dup set-word save-location ;
-
-: CREATE-CLASS ( -- word )
-    scan create-class-in ;
-
 : word-restarts ( possibilities -- restarts )
     natural-sort [
-        [ "Use the word " swap summary append ] keep
+        [
+            "Use the " swap vocabulary>> " vocabulary" 3append
+        ] keep
     ] { } map>assoc ;
 
 TUPLE: no-word-error name ;
 
-M: no-word-error summary
-    drop "Word not found in current vocabulary search path" ;
-
 : no-word ( name -- newword )
     dup no-word-error boa
     swap words-named [ forward-reference? not ] filter
     word-restarts throw-restarts
-    dup word-vocabulary (use+) ;
+    dup vocabulary>> (use+) ;
 
 : check-forward ( str word -- word/f )
     dup forward-reference? [
@@ -294,79 +99,22 @@ M: no-word-error summary
         ] ?if
     ] when ;
 
-: create-method-in ( class generic -- method )
-    create-method f set-word dup save-location ;
-
-: CREATE-METHOD ( -- method )
-    scan-word bootstrap-word scan-word create-method-in ;
-
-: shadowed-slots ( superclass slots -- shadowed )
-    >r all-slot-names r> intersect ;
-
-: check-slot-shadowing ( class superclass slots -- )
-    shadowed-slots [
-        [
-            "Definition of slot ``" %
-            %
-            "'' in class ``" %
-            word-name %
-            "'' shadows a superclass slot" %
-        ] "" make note.
-    ] with each ;
-
-ERROR: invalid-slot-name name ;
-
-M: invalid-slot-name summary
-    drop
-    "Invalid slot name" ;
-
-: (parse-tuple-slots) ( -- )
-    #! This isn't meant to enforce any kind of policy, just
-    #! to check for mistakes of this form:
-    #!
-    #! TUPLE: blahblah foo bing
-    #!
-    #! : ...
-    scan {
-        { [ dup not ] [ unexpected-eof ] }
-        { [ dup { ":" "(" "<" } member? ] [ invalid-slot-name ] }
-        { [ dup ";" = ] [ drop ] }
-        [ , (parse-tuple-slots) ]
-    } cond ;
-
-: parse-tuple-slots ( -- seq )
-    [ (parse-tuple-slots) ] { } make ;
-
-: parse-tuple-definition ( -- class superclass slots )
-    CREATE-CLASS
-    scan {
-        { ";" [ tuple f ] }
-        { "<" [ scan-word parse-tuple-slots ] }
-        [ >r tuple parse-tuple-slots r> prefix ]
-    } case 3dup check-slot-shadowing ;
-
-ERROR: not-in-a-method-error ;
-
-M: not-in-a-method-error summary
-    drop "call-next-method can only be called in a method definition" ;
-
 ERROR: staging-violation word ;
 
-M: staging-violation summary
-    drop
-    "A parsing word cannot be used in the same file it is defined in." ;
-
 : execute-parsing ( word -- )
-    [ changed-definitions get key? [ staging-violation ] when ]
-    [ execute ]
-    bi ;
+    dup changed-definitions get key? [ staging-violation ] when
+    execute ;
+
+: scan-object ( -- object )
+    scan-word dup parsing-word?
+    [ V{ } clone swap execute-parsing first ] when ;
 
 : parse-step ( accum end -- accum ? )
     scan-word {
         { [ 2dup eq? ] [ 2drop f ] }
         { [ dup not ] [ drop unexpected-eof t ] }
         { [ dup delimiter? ] [ unexpected t ] }
-        { [ dup parsing? ] [ nip execute-parsing t ] }
+        { [ dup parsing-word? ] [ nip execute-parsing t ] }
         [ pick push drop t ]
     } cond ;
 
@@ -378,78 +126,24 @@ M: staging-violation summary
 
 : parsed ( accum obj -- accum ) over push ;
 
-: with-parser ( lexer quot -- newquot )
-    swap lexer set
-    [ call >quotation ] [ <parse-error> rethrow ] recover ;
-
 : (parse-lines) ( lexer -- quot )
-    [ f parse-until ] with-parser ;
-
-SYMBOL: lexer-factory
-
-[ <lexer> ] lexer-factory set-global
+    [ f parse-until >quotation ] with-lexer ;
 
 : parse-lines ( lines -- quot )
     lexer-factory get call (parse-lines) ;
 
-! Parsing word utilities
-: parse-effect ( -- effect )
-    ")" parse-tokens "(" over member? [
-        "Stack effect declaration must not contain (" throw
-    ] [
-        { "--" } split1 dup [
-            <effect>
-        ] [
-            "Stack effect declaration must contain --" throw
-        ] if
-    ] if ;
-
-ERROR: bad-number ;
-
-: parse-base ( parsed base -- parsed )
-    scan swap base> [ bad-number ] unless* parsed ;
-
 : parse-literal ( accum end quot -- accum )
     >r parse-until r> call parsed ; inline
 
 : parse-definition ( -- quot )
     \ ; parse-until >quotation ;
 
-: (:) CREATE-WORD parse-definition ;
+: (:) ( -- word def ) CREATE-WORD parse-definition ;
 
-SYMBOL: current-class
-SYMBOL: current-generic
+ERROR: bad-number ;
 
-: with-method-definition ( quot -- parsed )
-    [
-        >r
-        [ "method-class" word-prop current-class set ]
-        [ "method-generic" word-prop current-generic set ]
-        [ ] tri
-        r> call
-    ] with-scope ; inline
-
-: (M:)
-    CREATE-METHOD [ parse-definition ] with-method-definition ;
-
-: scan-object ( -- object )
-    scan-word dup parsing?
-    [ V{ } clone swap execute first ] when ;
-
-GENERIC: expected>string ( obj -- str )
-
-M: f expected>string drop "end of input" ;
-M: word expected>string word-name ;
-M: string expected>string ;
-
-M: unexpected error.
-    "Expected " write
-    dup unexpected-want expected>string write
-    " but got " write
-    unexpected-got expected>string print ;
-
-M: bad-number summary
-    drop "Bad number literal" ;
+: parse-base ( parsed base -- parsed )
+    scan swap base> [ bad-number ] unless* parsed ;
 
 SYMBOL: bootstrap-syntax
 
@@ -467,12 +161,13 @@ SYMBOL: interactive-vocabs
     "arrays"
     "assocs"
     "combinators"
+    "compiler"
     "compiler.errors"
+    "compiler.units"
     "continuations"
     "debugger"
     "definitions"
     "editors"
-    "generic"
     "help"
     "inspector"
     "io"
@@ -480,12 +175,14 @@ SYMBOL: interactive-vocabs
     "kernel"
     "listener"
     "math"
+    "math.order"
     "memory"
     "namespaces"
     "prettyprint"
     "sequences"
     "slicing"
     "sorting"
+    "stack-checker"
     "strings"
     "syntax"
     "tools.annotations"
@@ -516,13 +213,13 @@ SYMBOL: interactive-vocabs
     "quiet" get [
         drop
     ] [
-        "Loading " write <pathname> . flush
+        "Loading " write print flush
     ] if ;
 
 : filter-moved ( assoc1 assoc2 -- seq )
     swap assoc-diff [
         drop where dup [ first ] when
-        file get source-file-path =
+        file get path>> =
     ] assoc-filter keys ;
 
 : removed-definitions ( -- assoc1 assoc2 )
@@ -538,7 +235,7 @@ SYMBOL: interactive-vocabs
 
 : reset-removed-classes ( -- )
     removed-classes
-    filter-moved [ class? ] filter [ reset-class ] each ;
+    filter-moved [ class? ] filter [ forget-class ] each ;
 
 : fix-class-words ( -- )
     #! If a class word had a compound definition which was
@@ -587,15 +284,3 @@ SYMBOL: interactive-vocabs
 
 : ?run-file ( path -- )
     dup exists? [ run-file ] [ drop ] if ;
-
-: bootstrap-file ( path -- )
-    [ parse-file % ] [ run-file ] if-bootstrapping ;
-
-: eval ( str -- )
-    [ string-lines parse-fresh ] with-compilation-unit call ;
-
-: eval>string ( str -- output )
-    [
-        parser-notes off
-        [ [ eval ] keep ] try drop
-    ] with-string-writer ;
diff --git a/core/quotations/quotations-docs.factor b/core/quotations/quotations-docs.factor
index 74c296d94c..1a16d0f92a 100755
--- a/core/quotations/quotations-docs.factor
+++ b/core/quotations/quotations-docs.factor
@@ -17,7 +17,7 @@ $nl
 "Wrappers are used to push words on the data stack; they evaluate to the object being wrapped:"
 { $subsection wrapper }
 { $subsection literalize }
-{ $see-also "basic-combinators" "combinators" } ;
+{ $see-also "dataflow" "combinators" } ;
 
 ABOUT: "quotations"
 
diff --git a/core/quotations/quotations.factor b/core/quotations/quotations.factor
index 2a0f5d289f..31e5e4753d 100755
--- a/core/quotations/quotations.factor
+++ b/core/quotations/quotations.factor
@@ -1,27 +1,35 @@
 ! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays sequences sequences.private
+USING: accessors arrays sequences sequences.private
 kernel kernel.private math assocs quotations.private
 slots.private ;
 IN: quotations
 
+<PRIVATE
+
+: uncurry dup 2 slot swap 3 slot ; inline
+
+: uncompose dup 2 slot swap 3 slot ; inline
+
+PRIVATE>
+
 M: quotation call (call) ;
 
-M: curry call dup 3 slot swap 4 slot call ;
+M: curry call uncurry call ;
 
-M: compose call dup 3 slot swap 4 slot slip call ;
+M: compose call uncompose slip call ;
 
 M: wrapper equal?
-    over wrapper? [ [ wrapped ] bi@ = ] [ 2drop f ] if ;
+    over wrapper? [ [ wrapped>> ] bi@ = ] [ 2drop f ] if ;
 
 UNION: callable quotation curry compose ;
 
 M: callable equal?
     over callable? [ sequence= ] [ 2drop f ] if ;
 
-M: quotation length quotation-array length ;
+M: quotation length array>> length ;
 
-M: quotation nth-unsafe quotation-array nth-unsafe ;
+M: quotation nth-unsafe array>> nth-unsafe ;
 
 : >quotation ( seq -- quot )
     >array array>quotation ; inline
@@ -38,26 +46,23 @@ M: object literalize ;
 
 M: wrapper literalize <wrapper> ;
 
-M: curry length curry-quot length 1+ ;
+M: curry length quot>> length 1+ ;
 
 M: curry nth
-    over zero? [
-        nip curry-obj literalize
-    ] [
-        >r 1- r> curry-quot nth
-    ] if ;
+    over zero? [ nip obj>> literalize ] [ >r 1- r> quot>> nth ] if ;
 
 INSTANCE: curry immutable-sequence
 
 M: compose length
-    [ compose-first length ]
-    [ compose-second length ] bi + ;
+    [ first>> length ] [ second>> length ] bi + ;
 
-M: compose nth
-    2dup compose-first length < [
-        compose-first
+M: compose virtual-seq first>> ;
+
+M: compose virtual@
+    2dup first>> length < [
+        first>>
     ] [
-        [ compose-first length - ] [ compose-second ] bi
-    ] if nth ;
+        [ first>> length - ] [ second>> ] bi
+    ] if ;
 
-INSTANCE: compose immutable-sequence
+INSTANCE: compose virtual-sequence
diff --git a/core/sbufs/sbufs-docs.factor b/core/sbufs/sbufs-docs.factor
index 03769ab0a9..f5a06b8beb 100644
--- a/core/sbufs/sbufs-docs.factor
+++ b/core/sbufs/sbufs-docs.factor
@@ -1,4 +1,4 @@
-USING: strings arrays byte-arrays bit-arrays help.markup
+USING: strings arrays byte-arrays help.markup
 help.syntax kernel vectors ;
 IN: sbufs
 
diff --git a/core/sbufs/sbufs.factor b/core/sbufs/sbufs.factor
index f2f45b99c9..e45d98a3df 100755
--- a/core/sbufs/sbufs.factor
+++ b/core/sbufs/sbufs.factor
@@ -1,28 +1,26 @@
-! Copyright (C) 2004, 2007 Slava Pestov.
+! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math strings sequences.private sequences strings
-growable strings.private ;
+USING: accessors kernel math strings sequences.private sequences
+strings growable strings.private ;
 IN: sbufs
 
-<PRIVATE
+TUPLE: sbuf
+{ underlying string }
+{ length array-capacity } ;
 
-: string>sbuf ( string length -- sbuf )
-    sbuf boa ; inline
-
-PRIVATE>
-
-: <sbuf> ( n -- sbuf ) 0 <string> 0 string>sbuf ; inline
+: <sbuf> ( n -- sbuf ) 0 <string> 0 sbuf boa ; inline
 
 M: sbuf set-nth-unsafe
-    underlying >r >r >fixnum r> >fixnum r> set-string-nth ;
+    [ >fixnum ] [ >fixnum ] [ underlying>> ] tri* set-string-nth ;
 
-M: sbuf new-sequence drop [ 0 <string> ] keep >fixnum string>sbuf ;
+M: sbuf new-sequence
+    drop [ 0 <string> ] [ >fixnum ] bi sbuf boa ;
 
 : >sbuf ( seq -- sbuf ) SBUF" " clone-like ; inline
 
 M: sbuf like
     drop dup sbuf? [
-        dup string? [ dup length string>sbuf ] [ >sbuf ] if
+        dup string? [ dup length sbuf boa ] [ >sbuf ] if
     ] unless ;
 
 M: sbuf new-resizable drop <sbuf> ;
@@ -35,8 +33,8 @@ M: string new-resizable drop <sbuf> ;
 M: string like
     drop dup string? [
         dup sbuf? [
-            dup length over underlying length number= [
-                underlying dup reset-string-hashcode
+            dup length over underlying>> length number= [
+                underlying>> dup reset-string-hashcode
             ] [
                 >string
             ] if
diff --git a/core/sequences/sequences-docs.factor b/core/sequences/sequences-docs.factor
index 2c1a3b8ab9..5c0dbf7985 100755
--- a/core/sequences/sequences-docs.factor
+++ b/core/sequences/sequences-docs.factor
@@ -1,5 +1,6 @@
-USING: arrays bit-arrays help.markup help.syntax math
-sequences.private vectors strings sbufs kernel math.order ;
+USING: arrays help.markup help.syntax math
+sequences.private vectors strings kernel math.order layouts
+quotations ;
 IN: sequences
 
 ARTICLE: "sequences-unsafe" "Unsafe sequence operations"
@@ -42,8 +43,8 @@ ARTICLE: "sequences-integers" "Integer sequences and counted loops"
 $nl
 "For example, the " { $link each } " combinator, given an integer, simply calls a quotation that number of times, pushing a counter on each iteration that ranges from 0 up to that integer:"
 { $example "3 [ . ] each" "0\n1\n2" }
-"A common idiom is to iterate over a sequence, while also maintaining a loop counter. This can be done using " { $link 2each } ":"
-{ $example "{ \"a\" \"b\" \"c\" } dup length [\n    \"Index: \" write . \"Element: \" write .\n] 2each" "Index: 0\nElement: \"a\"\nIndex: 1\nElement: \"b\"\nIndex: 2\nElement: \"c\"" }
+"A common idiom is to iterate over a sequence, while also maintaining a loop counter. This can be done using " { $link each-index } ", " { $link map-index } " and " { $link reduce-index } "."
+$nl
 "Combinators that produce new sequences, such as " { $link map } ", will output an array if the input is an integer." ;
 
 ARTICLE: "sequences-access" "Accessing sequence elements"
@@ -80,6 +81,7 @@ ARTICLE: "sequences-reshape" "Reshaping sequences"
 
 ARTICLE: "sequences-appending" "Appending sequences"
 { $subsection append }
+{ $subsection prepend }
 { $subsection 3append }
 { $subsection concat }
 { $subsection join }
@@ -99,6 +101,7 @@ ARTICLE: "sequences-slices" "Subsequences and slices"
 { $subsection but-last }
 "Taking a sequence apart into a head and a tail:"
 { $subsection unclip }
+{ $subsection unclip-last }
 { $subsection cut }
 { $subsection cut* }
 "A " { $emphasis "slice" } " is a virtual sequence which presents as view of a subsequence of an underlying sequence:"
@@ -115,7 +118,7 @@ ARTICLE: "sequences-slices" "Subsequences and slices"
 "Taking a sequence apart into a head and a tail:"
 { $subsection unclip-slice }
 { $subsection cut-slice }
-"A utility for words which use slices as mutable iterators:"
+"A utility for words which use slices as iterators:"
 { $subsection <flat-slice> } ;
 
 ARTICLE: "sequences-combinators" "Sequence combinators"
@@ -123,16 +126,30 @@ ARTICLE: "sequences-combinators" "Sequence combinators"
 { $subsection each }
 { $subsection reduce }
 { $subsection interleave }
-{ $subsection 2each }
-{ $subsection 2reduce }
+{ $subsection replicate }
+{ $subsection replicate-as }
 "Mapping:"
 { $subsection map }
-{ $subsection 2map }
+{ $subsection map-as }
 { $subsection accumulate }
-{ $subsection unfold }
+{ $subsection produce }
 "Filtering:"
 { $subsection push-if }
-{ $subsection filter } ;
+{ $subsection filter }
+"Testing if a sequence contains elements satisfying a predicate:"
+{ $subsection contains? }
+{ $subsection all? }
+"Testing how elements are related:"
+{ $subsection monotonic? }
+{ $subsection "sequence-2combinators" } ;
+
+ARTICLE: "sequence-2combinators" "Pair-wise sequence combinators"
+"There is a set of combinators which traverse two sequences pairwise. If one sequence is shorter than the other, than only the prefix having the length of the minimum of the two is examined."
+{ $subsection 2each }
+{ $subsection 2reduce }
+{ $subsection 2map }
+{ $subsection 2map-as }
+{ $subsection 2all? } ;
 
 ARTICLE: "sequences-tests" "Testing sequences"
 "Testing for an empty sequence:"
@@ -146,12 +163,7 @@ ARTICLE: "sequences-tests" "Testing sequences"
 { $subsection head? }
 { $subsection tail? }
 { $subsection subseq? }
-"Testing if a sequence contains elements satisfying a predicate:"
-{ $subsection contains? }
-{ $subsection all? }
-{ $subsection 2all? }
 "Testing how elements are related:"
-{ $subsection monotonic? }
 { $subsection all-eq? }
 { $subsection all-equal? } ;
 
@@ -170,6 +182,16 @@ ARTICLE: "sequences-search" "Searching sequences"
 { $subsection find-last }
 { $subsection find-last-from } ;
 
+ARTICLE: "sequences-trimming" "Trimming sequences"
+"Trimming words:"
+{ $subsection trim }
+{ $subsection trim-left }
+{ $subsection trim-right }
+"Potentially more efficient trim:"
+{ $subsection trim-slice }
+{ $subsection trim-left-slice }
+{ $subsection trim-right-slice } ;
+
 ARTICLE: "sequences-destructive" "Destructive operations"
 "These words modify their input, instead of creating a new sequence."
 $nl
@@ -231,10 +253,13 @@ $nl
 { $subsection "sequences-search" }
 { $subsection "sequences-comparing" }
 { $subsection "sequences-split" }
+{ $subsection "grouping" }
 { $subsection "sequences-destructive" }
 { $subsection "sequences-stacks" }
 { $subsection "sequences-sorting" }
+{ $subsection "binary-search" }
 { $subsection "sets" }
+{ $subsection "sequences-trimming" }
 "For inner loops:"
 { $subsection "sequences-unsafe" } ;
 
@@ -305,6 +330,51 @@ HELP: empty?
 { $values { "seq" sequence } { "?" "a boolean" } }
 { $description "Tests if the sequence has zero length." } ;
 
+HELP: if-empty
+{ $values { "seq" sequence } { "quot1" quotation } { "quot2" quotation } }
+{ $description "Makes an implicit check if the sequence is empty. An empty sequence is dropped and " { $snippet "quot1" } " is called. Otherwise, if the sequence has any elements, " { $snippet "quot2" } " is called on it." }
+{ $example
+    "USING: kernel prettyprint sequences sequences.lib ;"
+    "{ 1 2 3 } [ \"empty sequence\" ] [ sum ] if-empty ."
+    "6"
+} ;
+
+HELP: when-empty
+{ $values
+     { "seq" sequence } { "quot" "the first quotation of an " { $link if-empty } } }
+{ $description "Makes an implicit check if the sequence is empty. An empty sequence is dropped and the " { $snippet "quot" } " is called." }
+{ $examples "This word is equivalent to " { $link if-empty } " with an empty second quotation:"
+    { $example
+    "USING: sequences prettyprint ;"
+    "{ } [ { 4 5 6 } ] [ ] if-empty ."
+    "{ 4 5 6 }"
+    }
+    { $example
+    "USING: sequences prettyprint ;"
+    "{ } [ { 4 5 6 } ] when-empty ."
+    "{ 4 5 6 }"
+    }
+} ;
+
+HELP: unless-empty
+{ $values
+     { "seq" sequence } { "quot" "the second quotation of an " { $link if-empty } } }
+{ $description "Makes an implicit check if the sequence is empty. An empty sequence is dropped. Otherwise, the " { $snippet "quot" } " is called on the sequence." }
+{ $examples "This word is equivalent to " { $link if-empty } " with an empty first quotation:"
+    { $example
+    "USING: sequences prettyprint ;"
+    "{ 4 5 6 } [ ] [ sum ] if-empty ."
+    "15"
+    }
+    { $example
+    "USING: sequences prettyprint ;"
+    "{ 4 5 6 } [ sum ] unless-empty ."
+    "15"
+    }
+} ;
+
+{ if-empty when-empty unless-empty } related-words
+
 HELP: delete-all
 { $values { "seq" "a resizable sequence" } }
 { $description "Resizes the sequence to zero length, removing all elements. Not all sequences are resizable." }
@@ -412,6 +482,7 @@ HELP: first4
 
 HELP: array-capacity
 { $values { "array" "an array" } { "n" "a non-negative fixnum" } }
+{ $class-description "A predicate class whose instances are valid array sizes for the current architecture. The minimum value is zero and the maximum value is " { $link max-array-capacity } "." }
 { $description "Low-level array length accessor." }
 { $warning "This word is in the " { $vocab-link "sequences.private" } " vocabulary because it is unsafe. It does not check types, so improper use can corrupt memory." } ;
 
@@ -453,6 +524,15 @@ HELP: map
 { $values { "seq" sequence } { "quot" "a quotation with stack effect " { $snippet "( old -- new )" } } { "newseq" "a new sequence" } }
 { $description "Applies the quotation to each element of the sequence in order. The new elements are collected into a sequence of the same class as the input sequence." } ;
 
+HELP: map-as
+{ $values { "seq" sequence } { "quot" "a quotation with stack effect " { $snippet "( old -- new )" } } { "newseq" "a new sequence" } { "exemplar" sequence } }
+{ $description "Applies the quotation to each element of the sequence in order. The new elements are collected into a sequence of the same class as " { $snippet "exemplar" } "." }
+{ $examples
+    "The following example converts a string into an array of one-element strings:"
+    { $example "USING: prettyprint strings sequences ;" "\"Hello\" [ 1string ] { } map-as ." "{ \"H\" \"e\" \"l\" \"l\" \"o\" }" }
+    "Note that " { $link map } " could not be used here, because it would create another string to hold results, and one-element strings cannot themselves be elements of strings."
+} ;
+
 HELP: change-nth
 { $values { "i" "a non-negative integer" } { "seq" "a mutable sequence" } { "quot" "a quotation with stack effect " { $snippet "( elt -- newelt )" } } }
 { $description "Applies the quotation to the " { $snippet "i" } "th element of the sequence, storing the result back into the sequence." }
@@ -475,8 +555,7 @@ HELP: max-length
 
 HELP: 2each
 { $values { "seq1" sequence } { "seq2" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt1 elt2 -- )" } } }
-{ $description "Applies the quotation to pairs of elements from " { $snippet "seq1" } " and " { $snippet "seq2" } "." }
-{ $notes "If one sequence is shorter than the other, than only the prefix having the length of the minimum of the two is examined." } ;
+{ $description "Applies the quotation to pairs of elements from " { $snippet "seq1" } " and " { $snippet "seq2" } "." } ;
 
 HELP: 2reduce
 { $values { "seq1" sequence }
@@ -485,18 +564,19 @@ HELP: 2reduce
           { "quot" "a quotation with stack effect "
                    { $snippet "( prev elt1 elt2 -- next )" } }
           { "result" "the final result" } }
-{ $description "Combines successive pairs of elements from the two sequences using a ternary operation. The first input value at each iteration except the first one is the result of the previous iteration. The first input value at the first iteration is " { $snippet "identity" } "." }
-{ $notes "If one sequence is shorter than the other, then only the prefix having the length of the minimum of the two is examined." } ;
+{ $description "Combines successive pairs of elements from the two sequences using a ternary operation. The first input value at each iteration except the first one is the result of the previous iteration. The first input value at the first iteration is " { $snippet "identity" } "." } ;
 
 HELP: 2map
 { $values { "seq1" sequence } { "seq2" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt1 elt2 -- new )" } } { "newseq" "a new sequence" } }
-{ $description "Applies the quotation to each pair of elements in turn, yielding new elements which are collected into a new sequence having the same class as " { $snippet "seq1" } "." }
-{ $notes "If one sequence is shorter than the other, than only the prefix having the length of the minimum of the two is examined." } ;
+{ $description "Applies the quotation to each pair of elements in turn, yielding new elements which are collected into a new sequence having the same class as " { $snippet "seq1" } "." } ;
+
+HELP: 2map-as
+{ $values { "seq1" sequence } { "seq2" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt1 elt2 -- new )" } } { "exemplar" sequence } { "newseq" "a new sequence" } }
+{ $description "Applies the quotation to each pair of elements in turn, yielding new elements which are collected into a new sequence having the same class as " { $snippet "exemplar" } "." } ;
 
 HELP: 2all?
 { $values { "seq1" sequence } { "seq2" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt1 elt2 -- ? )" } } { "?" "a boolean" } }
-{ $description "Tests the predicate pairwise against elements of " { $snippet "seq1" } " and " { $snippet "seq2" } "." }
-{ $notes "If one sequence is shorter than the other, than only the prefix having the length of the minimum of the two is examined." } ;
+{ $description "Tests the predicate pairwise against elements of " { $snippet "seq1" } " and " { $snippet "seq2" } "." } ;
 
 HELP: find
 { $values { "seq" sequence }
@@ -566,8 +646,6 @@ HELP: index
 { $values { "obj" object } { "seq" sequence } { "n" "an index" } }
 { $description "Outputs the index of the first element in the sequence equal to " { $snippet "obj" } ". If no element is found, outputs " { $link f } "." } ;
 
-{ index index-from last-index last-index-from member? memq? } related-words
-
 HELP: index-from
 { $values { "obj" object } { "i" "a start index" } { "seq" sequence } { "n" "an index" } }
 { $description "Outputs the index of the first element in the sequence equal to " { $snippet "obj" } ", starting the search from the " { $snippet "i" } "th element. If no element is found, outputs " { $link f } "." } ;
@@ -704,7 +782,7 @@ HELP: reverse-here
 
 HELP: padding
 { $values { "seq" sequence } { "n" "a non-negative integer" } { "elt" object } { "quot" "a quotation with stack effect " { $snippet "( seq1 seq2 -- newseq )" } } { "newseq" "a new sequence" } }
-{ $description "Outputs a new string sequence of " { $snippet "elt" } " repeated, that when appended to " { $snippet "seq" } ", yields a sequence of length " { $snippet "n" } ". If the length of { " { $snippet "seq" } " is greater than " { $snippet "n" } ", this word outputs an empty sequence." } ;
+{ $description "Outputs a new string sequence of " { $snippet "elt" } " repeated, that when appended to " { $snippet "seq" } ", yields a sequence of length " { $snippet "n" } ". If the length of " { $snippet "seq" } " is greater than " { $snippet "n" } ", this word outputs an empty sequence." } ;
 
 HELP: pad-left
 { $values { "seq" sequence } { "n" "a non-negative integer" } { "elt" object } { "padded" "a new sequence" } }
@@ -745,8 +823,9 @@ HELP: slice-error
 } ;
 
 HELP: slice
-{ $class-description "A virtual sequence which presents a subrange of the elements of an underlying sequence. New instances can be created by calling " { $link <slice> } ". Slices are mutable if the underlying sequence is mutable, and mutating a slice changes the underlying sequence." }
-{ $notes "The slots of a slice should not be changed after the slice has been created, because this can break invariants." } ;
+{ $class-description "A virtual sequence which presents a subrange of the elements of an underlying sequence. New instances can be created by calling " { $link <slice> } "."
+$nl
+"Slices are mutable if the underlying sequence is mutable, and mutating a slice changes the underlying sequence. However, slices cannot be resized after creation." } ;
 
 HELP: check-slice
 { $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "seq" sequence } }
@@ -760,19 +839,19 @@ HELP: collapse-slice
 
 HELP: <flat-slice>
 { $values { "seq" sequence } { "slice" slice } }
-{ $description "Outputs a slice with the same elements as " { $snippet "seq" } ", and " { $link slice-from } " equal to 0 and " { $link slice-to } " equal to the length of " { $snippet "seq" } "." }
-{ $notes "Some words create slices then proceed to read and write the " { $link slice-from } " and " { $link slice-to } " slots of the slice. To behave predictably when they are themselves given a slice as input, they apply this word first to get a canonical slice." } ;
+{ $description "Outputs a slice with the same elements as " { $snippet "seq" } ", and " { $snippet "from" } " equal to 0 and " { $snippet "to" } " equal to the length of " { $snippet "seq" } "." }
+{ $notes "Some words create slices then proceed to read the " { $snippet "to" } " and " { $snippet "from" } " slots of the slice. To behave predictably when they are themselves given a slice as input, they apply this word first to get a canonical slice." } ;
 
 HELP: <slice>
-{ $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "seq" sequence } { "slice" "a slice" } }
+{ $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "seq" sequence } { "slice" slice } }
 { $description "Outputs a new virtual sequence sharing storage with the subrange of elements in " { $snippet "seq" } " with indices starting from and including " { $snippet "m" } ", and up to but not including " { $snippet "n" } "." }
 { $errors "Throws an error if " { $snippet "m" } " or " { $snippet "n" } " is out of bounds." }
-{ $notes "Taking the slice of a slice outputs a slice of the underlying sequence of the original slice. Keep this in mind when writing code which depends on the values of " { $link slice-from } " and " { $link slice-to } " being equal to the inputs to this word. The " { $link <flat-slice> } " word might be helpful in such situations." } ;
+{ $notes "Taking the slice of a slice outputs a slice of the underlying sequence of the original slice. Keep this in mind when writing code which depends on the values of " { $snippet "from" } " and " { $snippet "to" } " being equal to the inputs to this word. The " { $link <flat-slice> } " word might be helpful in such situations." } ;
 
 { <slice> subseq } related-words
 
 HELP: repetition
-{ $class-description "A virtual sequence consisting of " { $link repetition-elt } " repeated " { $link repetition-len } " times. Repetitions are created by calling " { $link <repetition> } "." } ;
+{ $class-description "A virtual sequence consisting of " { $snippet "elt" } " repeated " { $snippet "len" } " times. Repetitions are created by calling " { $link <repetition> } "." } ;
 
 HELP: <repetition> ( len elt -- repetition )
 { $values { "len" "a non-negative integer" } { "elt" object } { "repetition" repetition } }
@@ -796,12 +875,43 @@ HELP: push-all
 HELP: append
 { $values { "seq1" sequence } { "seq2" sequence } { "newseq" sequence } }
 { $description "Outputs a new sequence of the same type as " { $snippet "seq1" } " consisting of the elements of " { $snippet "seq1" } " followed by " { $snippet "seq2" } "." }
-{ $errors "Throws an error if " { $snippet "seq2" } " contains elements not permitted in sequences of the same class as " { $snippet "seq1" } "." } ;
+{ $errors "Throws an error if " { $snippet "seq2" } " contains elements not permitted in sequences of the same class as " { $snippet "seq1" } "." }
+{ $examples 
+    { $example "USING: prettyprint sequences ;"
+        "{ 1 2 } B{ 3 4 } append ."
+        "{ 1 2 3 4 }"
+    }
+    { $example "USING: prettyprint sequences strings ;"
+        "\"go\" \"ing\" append ."
+        "\"going\""
+    }
+} ;
+
+HELP: prepend
+{ $values { "seq1" sequence } { "seq2" sequence } { "newseq" sequence } }
+{ $description "Outputs a new sequence of the same type as " { $snippet "seq2" } " consisting of the elements of " { $snippet "seq2" } " followed by " { $snippet "seq1" } "." }
+{ $errors "Throws an error if " { $snippet "seq1" } " contains elements not permitted in sequences of the same class as " { $snippet "seq2" } "." }
+{ $examples 
+    { $example "USING: prettyprint sequences ;"
+        "{ 1 2 } B{ 3 4 } prepend ."
+        "B{ 3 4 1 2 }"
+    }
+    { $example "USING: prettyprint sequences strings ;"
+        "\"go\" \"car\" prepend ."
+        "\"cargo\""
+    }
+} ;
 
 HELP: 3append
 { $values { "seq1" sequence } { "seq2" sequence } { "seq3" sequence } { "newseq" sequence } }
 { $description "Outputs a new sequence consisting of the elements of " { $snippet "seq1" } ", " { $snippet "seq2" } " and " { $snippet "seq3" } " in turn." }
-{ $errors "Throws an error if " { $snippet "seq2" } " or " { $snippet "seq3" } " contain elements not permitted in sequences of the same class as " { $snippet "seq1" } "." } ;
+{ $errors "Throws an error if " { $snippet "seq2" } " or " { $snippet "seq3" } " contain elements not permitted in sequences of the same class as " { $snippet "seq1" } "." }
+{ $examples
+    { $example "USING: prettyprint sequences ;"
+        "\"a\" \"b\" \"c\" 3append ."
+        "\"abc\""
+    }
+} ;
 
 HELP: subseq
 { $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "seq" sequence } { "subseq" "a new sequence" } }
@@ -929,6 +1039,17 @@ HELP: unclip-slice
 { $values { "seq" sequence } { "rest" slice } { "first" object } }
 { $description "Outputs a tail sequence and the first element of " { $snippet "seq" } "; the tail sequence consists of all elements of " { $snippet "seq" } " but the first. Unlike " { $link unclip } ", this word does not make a copy of the input sequence, and runs in constant time." } ;
 
+HELP: unclip-last
+{ $values { "seq" sequence } { "butlast" sequence } { "last" object } }
+{ $description "Outputs a head sequence and the last element of " { $snippet "seq" } "; the head sequence consists of all elements of " { $snippet "seq" } " but the last." }
+{ $examples
+    { $example "USING: prettyprint sequences ;" "{ 1 2 3 } unclip-last prefix ." "{ 3 1 2 }" }
+} ;
+
+HELP: unclip-last-slice
+{ $values { "seq" sequence } { "butlast" slice } { "last" object } }
+{ $description "Outputs a head sequence and the last element of " { $snippet "seq" } "; the head sequence consists of all elements of " { $snippet "seq" } " but the last Unlike " { $link unclip-last } ", this word does not make a copy of the input sequence, and runs in constant time." } ;
+
 HELP: sum
 { $values { "seq" "a sequence of numbers" } { "n" "a number" } }
 { $description "Outputs the sum of all elements of " { $snippet "seq" } ". Outputs zero given an empty sequence." } ;
@@ -947,12 +1068,213 @@ HELP: supremum
 { $description "Outputs the greatest element of " { $snippet "seq" } "." }
 { $errors "Throws an error if the sequence is empty." } ;
 
-HELP: unfold
+HELP: produce
 { $values { "pred" "a quotation with stack effect " { $snippet "( -- ? )" } } { "quot" "a quotation with stack effect " { $snippet "( -- obj )" } } { "tail" "a quotation" } { "seq" "a sequence" } }
 { $description "Calls " { $snippet "pred" } " repeatedly. If the predicate yields " { $link f } ", stops, otherwise, calls " { $snippet "quot" } " to yield a value. Values are accumulated and returned in a sequence at the end." }
 { $examples
     "The following example divides a number by two until we reach zero, and accumulates intermediate results:"
-    { $example "USING: kernel math prettyprint sequences ;" "1337 [ dup 0 > ] [ 2/ dup ] [ ] unfold nip ." "{ 668 334 167 83 41 20 10 5 2 1 0 }" }
-    "The " { $snippet "tail" } " quotation is used when the predicate produces more than one output value. In this case, we have to drop this value even if the predicate fails in order for stack inference to calculate a stack effect for the " { $link unfold } " call:"
-    { $unchecked-example "USING: kernel prettyprint random sequences ;" "[ 10 random dup 1 > ] [ ] [ drop ] unfold ." "{ 8 2 2 9 }" }
+    { $example "USING: kernel math prettyprint sequences ;" "1337 [ dup 0 > ] [ 2/ dup ] [ ] produce nip ." "{ 668 334 167 83 41 20 10 5 2 1 0 }" }
+    "The " { $snippet "tail" } " quotation is used when the predicate produces more than one output value. In this case, we have to drop this value even if the predicate fails in order for stack inference to calculate a stack effect for the " { $link produce } " call:"
+    { $unchecked-example "USING: kernel prettyprint random sequences ;" "[ 10 random dup 1 > ] [ ] [ drop ] produce ." "{ 8 2 2 9 }" }
+} ;
+
+HELP: sigma
+{ $values { "seq" sequence } { "quot" quotation } { "n" number } }
+{ $description "Like map sum, but without creating an intermediate sequence." }
+{ $example
+    "! Find the sum of the squares [0,99]"
+    "USING: math math.ranges sequences prettyprint ;"
+    "100 [1,b] [ sq ] sigma ."
+    "338350"
+} ;
+
+HELP: count
+{ $values { "seq" sequence } { "quot" quotation } { "n" integer } }
+{ $description "Efficiently returns the number of elements that the predicate quotation matches." }
+{ $example
+    "USING: math math.ranges sequences prettyprint ;"
+    "100 [1,b] [ even? ] count ."
+    "50"
+} ;
+
+HELP: pusher
+{ $values
+     { "quot" "a predicate quotation" }
+     { "quot" quotation } { "accum" vector } }
+{ $description "Creates a new vector to accumulate the values which return true for a predicate.  Returns a new quotation which accepts an object to be tested and stored in the accumulator if the test yields true. The accumulator is left on the stack for convenience." }
+{ $example "! Find all the even numbers:" "USING: prettyprint sequences math kernel ;"
+           "10 [ even? ] pusher [ each ] dip ."
+           "V{ 0 2 4 6 8 }"
+}
+{ $notes "Used to implement the " { $link filter } " word." } ;
+
+HELP: trim-left
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "newseq" sequence } }
+{ $description "Removes elements starting from the left side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
+{ $example "" "USING: prettyprint math sequences ;"
+           "{ 0 0 1 2 3 0 0 } [ zero? ] trim-left ."
+           "{ 1 2 3 0 0 }"
+} ;
+
+HELP: trim-left-slice
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "slice" slice } }
+{ $description "Removes elements starting from the left side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice" }
+{ $example "" "USING: prettyprint math sequences ;"
+           "{ 0 0 1 2 3 0 0 } [ zero? ] trim-left-slice ."
+           "T{ slice { from 2 } { to 7 } { seq { 0 0 1 2 3 0 0 } } }"
+} ;
+
+HELP: trim-right
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "newseq" sequence } }
+{ $description "Removes elements starting from the right side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
+{ $example "" "USING: prettyprint math sequences ;"
+           "{ 0 0 1 2 3 0 0 } [ zero? ] trim-right ."
+           "{ 0 0 1 2 3 }"
+} ;
+
+HELP: trim-right-slice
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "slice" slice } }
+{ $description "Removes elements starting from the right side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice." }
+{ $example "" "USING: prettyprint math sequences ;"
+           "{ 0 0 1 2 3 0 0 } [ zero? ] trim-right-slice ."
+           "T{ slice { from 0 } { to 5 } { seq { 0 0 1 2 3 0 0 } } }"
+} ;
+
+HELP: trim
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "newseq" sequence } }
+{ $description "Removes elements starting from the left and right sides of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
+{ $example "" "USING: prettyprint math sequences ;"
+           "{ 0 0 1 2 3 0 0 } [ zero? ] trim ."
+           "{ 1 2 3 }"
+} ;
+
+HELP: trim-slice
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "slice" slice } }
+{ $description "Removes elements starting from the left and right sides of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice." }
+{ $example "" "USING: prettyprint math sequences ;"
+           "{ 0 0 1 2 3 0 0 } [ zero? ] trim-slice ."
+           "T{ slice { from 2 } { to 5 } { seq { 0 0 1 2 3 0 0 } } }"
+} ;
+
+{ trim trim-slice trim-left trim-left-slice trim-right trim-right-slice } related-words
+
+HELP: sift
+{ $values
+     { "seq" sequence }
+     { "newseq" sequence } }
+ { $description "Outputs a new sequence with all instance of " { $link f  } " removed." }
+ { $examples 
+    { $example "USING: prettyprint sequences ;"
+        "{ \"a\" 3 { } f } sift ."
+        "{ \"a\" 3 { } }"
+    }
+} ;
+
+HELP: harvest
+{ $values
+     { "seq" sequence }
+     { "newseq" sequence } }
+{ $description "Outputs a new sequence with all empty sequences removed." }
+{ $examples 
+    { $example "USING: prettyprint sequences ;"
+               "{ { } { 2 3 } { 5 } { } } harvest ."
+               "{ { 2 3 } { 5 } }"
+    }
+} ;
+
+{ filter sift harvest } related-words
+
+HELP: set-first
+{ $values
+     { "first" object } { "seq" sequence } }
+{ $description "Sets the first element of a sequence." }
+{ $examples 
+    { $example "USING: prettyprint kernel sequences ;"
+        "{ 1 2 3 4  } 5 over set-first ."
+        "{ 5 2 3 4 }"
+    }
+} ;
+
+HELP: set-second
+{ $values
+     { "second" object } { "seq" sequence } }
+{ $description "Sets the second element of a sequence." }
+{ $examples 
+    { $example "USING: prettyprint kernel sequences ;"
+        "{ 1 2 3 4  } 5 over set-second ."
+        "{ 1 5 3 4 }"
+    }
+} ;
+
+HELP: set-third
+{ $values
+     { "third" object } { "seq" sequence } }
+{ $description "Sets the third element of a sequence." }
+{ $examples 
+    { $example "USING: prettyprint kernel sequences ;"
+        "{ 1 2 3 4  } 5 over set-third ."
+        "{ 1 2 5 4 }"
+    }
+} ;
+
+HELP: set-fourth
+{ $values
+     { "fourth" object } { "seq" sequence } }
+{ $description "Sets the fourth element of a sequence." }
+{ $examples 
+    { $example "USING: prettyprint kernel sequences ;"
+        "{ 1 2 3 4  } 5 over set-fourth ."
+        "{ 1 2 3 5 }"
+    }
+} ;
+
+{ set-first set-second set-third set-fourth } related-words
+
+HELP: replicate
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "newseq" sequence } }
+{ $description "Calls the quotation for every element of the sequence in order. However, the element is not passed to the quotation -- it is dropped, and the quotation produces an element of its own that is collected into a sequence of the same class as the input sequence." }
+{ $examples 
+    { $unchecked-example "USING: prettyprint kernel sequences ;"
+        "5 [ 100 random ] replicate ."
+        "{ 52 10 45 81 30 }"
+    }
+} ;
+
+HELP: replicate-as
+{ $values
+     { "seq" sequence } { "quot" quotation } { "exemplar" sequence }
+     { "newseq" sequence } }
+{ $description "Calls the quotation for every element of the sequence in order. However, the element is not passed to the quotation -- it is dropped, and the quotation produces an element of its own that is collected into a sequence of the same class as the exemplar sequence." }
+{ $examples 
+    { $unchecked-example "USING: prettyprint kernel sequences ;"
+        "5 [ 100 random ] B{ } replicate-as ."
+        "B{ 44 8 2 33 18 }"
+    }
+} ;
+{ replicate replicate-as } related-words
+
+HELP: partition
+{ $values
+     { "seq" sequence } { "quot" quotation }
+     { "trueseq" sequence } { "falseseq" sequence } }
+     { $description "Calls a predicate quotation on each element of the input sequence.  If the test yields true, the element is added to " { $snippet "trueseq" } "; if false, it's added to " { $snippet "falseseq" } "." }
+{ $examples 
+    { $example "USING: prettyprint kernel math sequences ;"
+        "{ 1 2 3 4 5 } [ even? ] partition [ . ] bi@"
+        "{ 2 4 }\n{ 1 3 5 }"
+    }
 } ;
diff --git a/core/sequences/sequences-tests.factor b/core/sequences/sequences-tests.factor
index 81384a40c4..8018fe1cdc 100755
--- a/core/sequences/sequences-tests.factor
+++ b/core/sequences/sequences-tests.factor
@@ -1,8 +1,11 @@
 USING: arrays kernel math namespaces sequences kernel.private
-sequences.private strings sbufs tools.test vectors bit-arrays
+sequences.private strings sbufs tools.test vectors
 generic vocabs.loader ;
 IN: sequences.tests
 
+[ "empty" ] [ { } [ "empty" ] [ "not empty" ] if-empty ] unit-test
+[ { 1 } "not empty" ] [ { 1 } [ "empty" ] [ "not empty" ] if-empty ] unit-test
+
 [ V{ 1 2 3 4 } ] [ 1 5 dup <slice> >vector ] unit-test
 [ 3 ] [ 1 4 dup <slice> length ] unit-test
 [ 2 ] [ 1 3 { 1 2 3 4 } <slice> length ] unit-test
@@ -69,7 +72,7 @@ unit-test
 [ f ] [ [ { 2 } { } { } ] all-equal? ] unit-test
 [ t ] [ [ ] all-equal? ] unit-test
 [ t ] [ [ 1234 ] all-equal? ] unit-test
-[ t ] [ [ 1.0 1 1 ] all-equal? ] unit-test
+[ f ] [ [ 1.0 1 1 ] all-equal? ] unit-test
 [ t ] [ { 1 2 3 4 } [ < ] monotonic? ] unit-test
 [ f ] [ { 1 2 3 4 } [ > ] monotonic? ] unit-test
 [ [ 2 3 4 ] ] [ [ 1 2 3 ] 1 [ + ] curry map ] unit-test
@@ -222,8 +225,6 @@ unit-test
 
 [ f ] [ f V{ } like f V{ } like eq? ] unit-test
 
-[ ?{ f t } ] [ 0 2 ?{ f t f } subseq ] unit-test
-
 [ V{ f f f } ] [ 3 V{ } new-sequence ] unit-test
 [ SBUF" \0\0\0" ] [ 3 SBUF" " new-sequence ] unit-test
 
@@ -236,13 +237,32 @@ unit-test
 
 [ -1./0. 0 delete-nth ] must-fail
 [ "" ] [ "" [ CHAR: \s = ] trim ] unit-test
-[ "" ] [ "" [ CHAR: \s = ] left-trim ] unit-test
-[ "" ] [ "" [ CHAR: \s = ] right-trim ] unit-test
-[ "" ] [ "  " [ CHAR: \s = ] left-trim ] unit-test
-[ "" ] [ "  " [ CHAR: \s = ] right-trim ] unit-test
+[ "" ] [ "" [ CHAR: \s = ] trim-left ] unit-test
+[ "" ] [ "" [ CHAR: \s = ] trim-right ] unit-test
+[ "" ] [ "  " [ CHAR: \s = ] trim-left ] unit-test
+[ "" ] [ "  " [ CHAR: \s = ] trim-right ] unit-test
 [ "asdf" ] [ " asdf " [ CHAR: \s = ] trim ] unit-test
-[ "asdf " ] [ " asdf " [ CHAR: \s = ] left-trim ] unit-test
-[ " asdf" ] [ " asdf " [ CHAR: \s = ] right-trim ] unit-test
+[ "asdf " ] [ " asdf " [ CHAR: \s = ] trim-left ] unit-test
+[ " asdf" ] [ " asdf " [ CHAR: \s = ] trim-right ] unit-test
 
-! Hardcore
-[ ] [ "sequences" reload ] unit-test
+[ 328350 ] [ 100 [ sq ] sigma ] unit-test
+
+[ 50 ] [ 100 [ even? ] count ] unit-test
+[ 50 ] [ 100 [ odd?  ] count ] unit-test
+
+[ { "b" "d" } ] [ { "a" "b" "c" "d" } { 1 3 } nths ] unit-test
+[ { "a" "b" "c" "d" } ] [ { "a" "b" "c" "d" } { 0 1 2 3 } nths ] unit-test
+[ { "d" "c" "b" "a" } ] [ { "a" "b" "c" "d" } { 3 2 1 0 } nths ] unit-test
+[ { "d" "a" "b" "c" } ] [ { "a" "b" "c" "d" } { 3 0 1 2 } nths ] unit-test
+
+TUPLE: bogus-hashcode ;
+
+M: bogus-hashcode hashcode* 2drop 0 >bignum ;
+
+[ 0 ] [ { T{ bogus-hashcode } } hashcode ] unit-test
+
+[ { 2 4 6 } { 1 3 5 7 } ] [ { 1 2 3 4 5 6 7 } [ even? ] partition ] unit-test
+
+[ { 1 3 7 } ] [ 2 { 1 3 5 7 } remove-nth ] unit-test
+
+[ { 1 3 "X" 5 7 } ] [ "X" 2 { 1 3 5 7 } insert-nth ] unit-test
diff --git a/core/sequences/sequences.factor b/core/sequences/sequences.factor
index 4854ff8001..563a3ed5b0 100755
--- a/core/sequences/sequences.factor
+++ b/core/sequences/sequences.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2008 Slava Pestov, Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel kernel.private slots.private math math.private
-math.order ;
+USING: accessors kernel kernel.private slots.private math
+math.private math.order ;
 IN: sequences
 
 MIXIN: sequence
@@ -21,16 +21,27 @@ GENERIC: clone-like ( seq exemplar -- newseq ) flushable
 M: sequence like drop ;
 
 GENERIC: lengthen ( n seq -- )
+GENERIC: shorten ( n seq -- )
 
 M: sequence lengthen 2dup length > [ set-length ] [ 2drop ] if ;
 
+M: sequence shorten 2dup length < [ set-length ] [ 2drop ] if ;
+
 : empty? ( seq -- ? ) length zero? ; inline
+
+: if-empty ( seq quot1 quot2 -- )
+    [ dup empty? ] [ [ drop ] prepose ] [ ] tri* if ; inline
+
+: when-empty ( seq quot -- ) [ ] if-empty ; inline
+
+: unless-empty ( seq quot -- ) [ ] swap if-empty ; inline
+
 : delete-all ( seq -- ) 0 swap set-length ;
 
 : first ( seq -- first ) 0 swap nth ; inline
 : second ( seq -- second ) 1 swap nth ; inline
 : third ( seq -- third ) 2 swap nth ; inline
-: fourth  ( seq -- fourth ) 3 swap nth ; inline
+: fourth ( seq -- fourth ) 3 swap nth ; inline
 
 : set-first ( first seq -- ) 0 swap set-nth ; inline
 : set-second ( second seq -- ) 1 swap set-nth ; inline
@@ -57,16 +68,6 @@ INSTANCE: immutable-sequence sequence
 
 <PRIVATE
 
-: max-array-capacity ( -- n )
-    #! A bit of a pain; can't call cell-bits here
-    7 getenv 8 * 5 - 2^ 1- ; foldable
-
-PREDICATE: array-capacity < fixnum
-    0 max-array-capacity between? ;
-
-: array-capacity ( array -- n )
-    1 slot { array-capacity } declare ; inline
-
 : array-nth ( n array -- elt )
     swap 2 fixnum+fast slot ; inline
 
@@ -90,7 +91,7 @@ M: sequence set-nth-unsafe set-nth ;
 ! The f object supports the sequence protocol trivially
 M: f length drop 0 ;
 M: f nth-unsafe nip ;
-M: f like drop dup empty? [ drop f ] when ;
+M: f like drop [ f ] when-empty ;
 
 INSTANCE: f immutable-sequence
 
@@ -168,25 +169,26 @@ M: virtual-sequence new-sequence virtual-seq new-sequence ;
 INSTANCE: virtual-sequence sequence
 
 ! A reversal of an underlying sequence.
-TUPLE: reversed seq ;
+TUPLE: reversed { seq read-only } ;
 
 C: <reversed> reversed
 
-M: reversed virtual-seq reversed-seq ;
+M: reversed virtual-seq seq>> ;
 
-M: reversed virtual@ reversed-seq [ length swap - 1- ] keep ;
+M: reversed virtual@ seq>> [ length swap - 1- ] keep ;
 
-M: reversed length reversed-seq length ;
+M: reversed length seq>> length ;
 
 INSTANCE: reversed virtual-sequence
 
-: reverse ( seq -- newseq ) [ <reversed> ] [ like ] bi ;
-
 ! A slice of another sequence.
-TUPLE: slice from to seq ;
+TUPLE: slice
+{ from read-only }
+{ to read-only }
+{ seq read-only } ;
 
 : collapse-slice ( m n slice -- m' n' seq )
-    dup slice-from swap slice-seq >r tuck + >r + r> r> ; inline
+    [ from>> ] [ seq>> ] bi >r tuck + >r + r> r> ; inline
 
 ERROR: slice-error reason ;
 
@@ -200,33 +202,35 @@ ERROR: slice-error reason ;
     check-slice
     slice boa ; inline
 
-M: slice virtual-seq slice-seq ;
+M: slice virtual-seq seq>> ;
 
-M: slice virtual@ [ slice-from + ] [ slice-seq ] bi ;
+M: slice virtual@ [ from>> + ] [ seq>> ] bi ;
 
-M: slice length dup slice-to swap slice-from - ;
+M: slice length [ to>> ] [ from>> ] bi - ;
 
-: head-slice ( seq n -- slice ) (head) <slice> ;
+: short ( seq n -- seq n' ) over length min ; inline
 
-: tail-slice ( seq n -- slice ) (tail) <slice> ;
+: head-slice ( seq n -- slice ) (head) <slice> ; inline
 
-: rest-slice ( seq -- slice ) 1 tail-slice ;
+: tail-slice ( seq n -- slice ) (tail) <slice> ; inline
 
-: head-slice* ( seq n -- slice ) from-end head-slice ;
+: rest-slice ( seq -- slice ) 1 tail-slice ; inline
 
-: tail-slice* ( seq n -- slice ) from-end tail-slice ;
+: head-slice* ( seq n -- slice ) from-end head-slice ; inline
 
-: but-last-slice ( seq -- slice ) 1 head-slice* ;
+: tail-slice* ( seq n -- slice ) from-end tail-slice ; inline
+
+: but-last-slice ( seq -- slice ) 1 head-slice* ; inline
 
 INSTANCE: slice virtual-sequence
 
 ! One element repeated many times
-TUPLE: repetition len elt ;
+TUPLE: repetition { len read-only } { elt read-only } ;
 
 C: <repetition> repetition
 
-M: repetition length repetition-len ;
-M: repetition nth-unsafe nip repetition-elt ;
+M: repetition length len>> ;
+M: repetition nth-unsafe nip elt>> ;
 
 INSTANCE: repetition immutable-sequence
 
@@ -240,7 +244,8 @@ INSTANCE: repetition immutable-sequence
     ] 3keep ; inline
 
 : (copy) ( dst i src j n -- dst )
-    dup 0 <= [ 2drop 2drop ] [ 1- ((copy)) (copy) ] if ; inline
+    dup 0 <= [ 2drop 2drop ] [ 1- ((copy)) (copy) ] if ;
+    inline recursive
 
 : prepare-subseq ( from to seq -- dst i src j n )
     [ >r swap - r> new-sequence dup 0 ] 3keep
@@ -327,6 +332,9 @@ M: immutable-sequence clone-like like ;
     >r [ min-length ] 2keep r>
     [ >r 2nth-unsafe r> call ] 3curry ; inline
 
+: 2map-into ( seq1 seq2 quot into -- newseq )
+    >r (2each) r> collect ; inline
+
 : finish-find ( i seq -- i elt )
     over [ dupd nth-unsafe ] [ drop f ] if ; inline
 
@@ -334,11 +342,10 @@ M: immutable-sequence clone-like like ;
     pick >r >r (each) r> call r> finish-find ; inline
 
 : (find-from) ( n seq quot quot' -- i elt )
-    >r >r 2dup bounds-check? [
-        r> r> (find)
-    ] [
-        r> r> 2drop 2drop f f
-    ] if ; inline
+    [ 2dup bounds-check? ] 2dip
+    [ (find) ] 2curry
+    [ 2drop f f ]
+    if ; inline
 
 : (monotonic) ( seq quot -- ? )
     [ 2dup nth-unsafe rot 1+ rot nth-unsafe ]
@@ -361,6 +368,12 @@ PRIVATE>
 : map ( seq quot -- newseq )
     over map-as ; inline
 
+: replicate ( seq quot -- newseq )
+    [ drop ] prepose map ; inline
+
+: replicate-as ( seq quot exemplar -- newseq )
+    >r [ drop ] prepose r> map-as ; inline
+
 : change-each ( seq quot -- )
     over map-into ; inline
 
@@ -376,9 +389,15 @@ PRIVATE>
 : 2reduce ( seq1 seq2 identity quot -- result )
     >r -rot r> 2each ; inline
 
+: 2map-as ( seq1 seq2 quot exemplar -- newseq )
+    >r 2over min-length r>
+    [ [ 2map-into ] keep ] new-like ; inline
+
 : 2map ( seq1 seq2 quot -- newseq )
-    pick >r (2each) over r>
-    [ [ collect ] keep ] new-like ; inline
+    pick 2map-as ; inline
+
+: 2change-each ( seq1 seq2 quot -- newseq )
+    pick 2map-into ; inline
 
 : 2all? ( seq1 seq2 quot -- ? )
     (2each) all-integers? ; inline
@@ -407,19 +426,41 @@ PRIVATE>
 : filter ( seq quot -- subseq )
     over >r pusher >r each r> r> like ; inline
 
+: push-either ( elt quot accum1 accum2 -- )
+    >r >r keep swap r> r> ? push ; inline
+
+: 2pusher ( quot -- quot accum1 accum2 )
+    V{ } clone V{ } clone [ [ push-either ] 3curry ] 2keep ; inline
+
+: partition ( seq quot -- trueseq falseseq )
+    over >r 2pusher >r >r each r> r> r> tuck [ like ] 2bi@ ; inline
+
 : monotonic? ( seq quot -- ? )
     >r dup length 1- swap r> (monotonic) all? ; inline
 
 : interleave ( seq between quot -- )
     [ (interleave) ] 2curry >r dup length swap r> 2each ; inline
 
-: unfold ( pred quot tail -- seq )
-    V{ } clone [
-        swap >r [ push ] curry compose r> while
-    ] keep { } like ; inline
+: accumulator ( quot -- quot' vec )
+    V{ } clone [ [ push ] curry compose ] keep ; inline
+
+: produce ( pred quot tail -- seq )
+    swap accumulator >r swap while r> { } like ; inline
 
 : follow ( obj quot -- seq )
-    >r [ dup ] r> [ keep ] curry [ ] unfold nip ; inline
+    >r [ dup ] r> [ keep ] curry [ ] produce nip ; inline
+
+: prepare-index ( seq quot -- seq n quot )
+    >r dup length r> ; inline
+
+: each-index ( seq quot -- )
+    prepare-index 2each ; inline
+
+: map-index ( seq quot -- )
+    prepare-index 2map ; inline
+
+: reduce-index ( seq identity quot -- )
+    swapd each-index ; inline
 
 : index ( obj seq -- n )
     [ = ] with find drop ;
@@ -433,6 +474,9 @@ PRIVATE>
 : last-index-from ( obj i seq -- n )
     rot [ = ] curry find-last-from drop ;
 
+: nths ( seq indices -- seq' )
+    swap [ nth ] curry map ;
+
 : contains? ( seq quot -- ? )
     find drop >boolean ; inline
 
@@ -472,15 +516,13 @@ M: sequence <=>
     [ mismatch not ] [ 2drop f ] if ; inline
 
 : sequence-hashcode-step ( oldhash newpart -- newhash )
-    swap [
+    >fixnum swap [
         dup -2 fixnum-shift-fast swap 5 fixnum-shift-fast
         fixnum+fast fixnum+fast
     ] keep fixnum-bitxor ; inline
 
 : sequence-hashcode ( n seq -- x )
-    0 -rot [
-        hashcode* >fixnum sequence-hashcode-step
-    ] with each ; inline
+    0 -rot [ hashcode* sequence-hashcode-step ] with each ; inline
 
 M: reversed equal? over reversed? [ sequence= ] [ 2drop f ] if ;
 
@@ -513,7 +555,7 @@ M: slice equal? over slice? [ sequence= ] [ 2drop f ] if ;
 
 : peek ( seq -- elt ) [ length 1- ] [ nth ] bi ;
 
-: pop* ( seq -- ) [ length 1- ] [ set-length ] bi ;
+: pop* ( seq -- ) [ length 1- ] [ shorten ] bi ;
 
 : move-backward ( shift from to seq -- )
     2over number= [
@@ -557,8 +599,11 @@ M: slice equal? over slice? [ sequence= ] [ 2drop f ] if ;
     [ >r >r dup pick length + r> - over r> open-slice ] keep
     copy ;
 
+: remove-nth ( n seq -- seq' )
+    [ swap head-slice ] [ swap 1+ tail-slice ] 2bi append ;
+
 : pop ( seq -- elt )
-    [ length 1- ] [ [ nth ] [ set-length ] 2bi ] bi ;
+    [ length 1- ] [ [ nth ] [ shorten ] 2bi ] bi ;
 
 : all-equal? ( seq -- ? ) [ = ] monotonic? ;
 
@@ -574,18 +619,25 @@ M: slice equal? over slice? [ sequence= ] [ 2drop f ] if ;
         tuck - 1- rot exchange-unsafe
     ] each 2drop ;
 
+: reverse ( seq -- newseq )
+    [
+        dup [ length ] keep new-sequence
+        [ 0 swap copy ] keep
+        [ reverse-here ] keep
+    ] keep like ;
+
 : sum-lengths ( seq -- n )
     0 [ length + ] reduce ;
 
 : concat ( seq -- newseq )
-    dup empty? [
-        drop { }
+    [
+        { }
     ] [
         [ sum-lengths ] keep
         [ first new-resizable ] keep
         [ [ over push-all ] each ] keep
         first like
-    ] if ;
+    ] if-empty ;
 
 : joined-length ( seq glue -- n )
     >r dup sum-lengths swap length 1 [-] r> length * + ;
@@ -597,8 +649,10 @@ M: slice equal? over slice? [ sequence= ] [ 2drop f ] if ;
     ] keep like ;
 
 : padding ( seq n elt quot -- newseq )
-    >r >r over length [-] dup zero?
-    [ r> r> 3drop ] [ r> <repetition> r> call ] if ; inline
+    [
+        [ over length [-] dup zero? [ drop ] ] dip
+        [ <repetition> ] curry
+    ] dip compose if ; inline
 
 : pad-left ( seq n elt -- padded )
     [ swap dup (append) ] padding ;
@@ -625,12 +679,15 @@ M: slice equal? over slice? [ sequence= ] [ 2drop f ] if ;
 : cut-slice ( seq n -- before after )
     [ head-slice ] [ tail-slice ] 2bi ;
 
+: insert-nth ( elt n seq -- seq' )
+    swap cut-slice [ swap suffix ] dip append ;
+
 : midpoint@ ( seq -- n ) length 2/ ; inline
 
 : halves ( seq -- first second )
     dup midpoint@ cut-slice ;
 
-: binary-reduce ( seq start quot -- value )
+: binary-reduce ( seq start quot: ( elt1 elt2 -- newelt ) -- value )
     #! We can't use case here since combinators depends on
     #! sequences
     pick length dup 0 3 between? [
@@ -645,7 +702,7 @@ M: slice equal? over slice? [ sequence= ] [ 2drop f ] if ;
         >r >r halves r> r>
         [ [ binary-reduce ] 2curry bi@ ] keep
         call
-    ] if ; inline
+    ] if ; inline recursive
 
 : cut ( seq n -- before after )
     [ head ] [ tail ] 2bi ;
@@ -684,28 +741,39 @@ PRIVATE>
 : unclip-slice ( seq -- rest first )
     [ rest-slice ] [ first ] bi ;
 
-: unclip-last-slice ( seq -- butfirst last )
+: unclip-last-slice ( seq -- butlast last )
     [ but-last-slice ] [ peek ] bi ;
 
 : <flat-slice> ( seq -- slice )
     dup slice? [ { } like ] when 0 over length rot <slice> ;
     inline
 
-: left-trim ( seq quot -- newseq )
+: trim-left-slice ( seq quot -- slice )
     over >r [ not ] compose find drop r> swap
-    [ tail ] [ dup length tail ] if* ; inline
+    [ tail-slice ] [ dup length tail-slice ] if* ; inline
+    
+: trim-left ( seq quot -- newseq )
+    over [ trim-left-slice ] dip like ; inline
 
-: right-trim ( seq quot -- newseq )
+: trim-right-slice ( seq quot -- slice )
     over >r [ not ] compose find-last drop r> swap
-    [ 1+ head ] [ 0 head ] if* ; inline
+    [ 1+ head-slice ] [ 0 head-slice ] if* ; inline
+
+: trim-right ( seq quot -- newseq )
+    over [ trim-right-slice ] dip like ; inline
+
+: trim-slice ( seq quot -- slice )
+    [ trim-left-slice ] [ trim-right-slice ] bi ; inline
 
 : trim ( seq quot -- newseq )
-    [ left-trim ] [ right-trim ] bi ; inline
+    over [ trim-slice ] dip like ; inline
 
 : sum ( seq -- n ) 0 [ + ] binary-reduce ;
+
 : product ( seq -- n ) 1 [ * ] binary-reduce ;
 
 : infimum ( seq -- n ) dup first [ min ] reduce ;
+
 : supremum ( seq -- n ) dup first [ max ] reduce ;
 
 : flip ( matrix -- newmatrix )
@@ -713,3 +781,7 @@ PRIVATE>
         dup [ length ] map infimum
         swap [ [ nth-unsafe ] with { } map-as ] curry { } map-as
     ] unless ;
+
+: sigma ( seq quot -- n ) [ + ] compose 0 swap reduce ; inline
+
+: count ( seq quot -- n ) [ 1 0 ? ] compose sigma ; inline
diff --git a/core/sets/sets-docs.factor b/core/sets/sets-docs.factor
index 205d4d34bf..b3fa649dd1 100644
--- a/core/sets/sets-docs.factor
+++ b/core/sets/sets-docs.factor
@@ -8,6 +8,7 @@ $nl
 { $subsection prune }
 "Test for duplicates:"
 { $subsection all-unique? }
+{ $subsection duplicates }
 "Set operations on sequences:"
 { $subsection diff }
 { $subsection intersect }
@@ -38,6 +39,18 @@ HELP: adjoin
 }
 { $side-effects "seq" } ;
 
+HELP: conjoin
+{ $values { "elt" object } { "assoc" "an assoc" } }
+{ $description "Stores a key/value pair, both equal to " { $snippet "elt" } ", into the assoc." }
+{ $examples
+    { $example
+        "USING: kernel prettyprint sets ;"
+        "H{ } clone 1 over conjoin ."
+        "H{ { 1 1 } }"
+    }
+}
+{ $side-effects "assoc" } ;
+
 HELP: unique
 { $values { "seq" "a sequence" } { "assoc" "an assoc" } }
 { $description "Outputs a new assoc where the keys and values are equal." }
@@ -52,6 +65,13 @@ HELP: prune
     { $example "USING: sets prettyprint ;" "{ 1 1 t 3 t } prune ." "V{ 1 t 3 }" }
 } ;
 
+HELP: duplicates
+{ $values { "seq" "a sequence" } { "newseq" "a sequence" } }
+{ $description "Outputs a new sequence consisting of elements which occur more than once in " { $snippet "seq" } "." }
+{ $examples
+    { $example "USING: sets prettyprint ;" "{ 1 2 3 1 2 1 } duplicates ." "{ 1 2 1 }" }
+} ;
+
 HELP: all-unique?
 { $values { "seq" sequence } { "?" "a boolean" } }
 { $description "Tests whether a sequence contains any repeated elements." }
diff --git a/core/sets/sets.factor b/core/sets/sets.factor
index 5fbec9a7c8..c411bfcdcd 100644
--- a/core/sets/sets.factor
+++ b/core/sets/sets.factor
@@ -16,6 +16,12 @@ IN: sets
     [ ] [ length <hashtable> ] [ length <vector> ] tri
     [ [ (prune) ] 2curry each ] keep ;
 
+: duplicates ( seq -- newseq )
+    H{ } clone [ [ key? ] [ conjoin ] 2bi ] curry filter ;
+
+: gather ( seq quot -- newseq )
+    map concat prune ; inline
+
 : unique ( seq -- assoc )
     [ dup ] H{ } map>assoc ;
 
diff --git a/core/slots/deprecated/deprecated.factor b/core/slots/deprecated/deprecated.factor
deleted file mode 100755
index 3e2f899774..0000000000
--- a/core/slots/deprecated/deprecated.factor
+++ /dev/null
@@ -1,95 +0,0 @@
-! Copyright (C) 2005, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel kernel.private math namespaces
-sequences strings words effects generic generic.standard
-classes slots.private combinators slots ;
-IN: slots.deprecated
-
-: reader-effect ( class spec -- effect )
-    >r ?word-name 1array r> slot-spec-name 1array <effect> ;
-
-PREDICATE: slot-reader < word "reading" word-prop >boolean ;
-
-: set-reader-props ( class spec -- )
-    2dup reader-effect
-    over slot-spec-reader
-    swap "declared-effect" set-word-prop
-    slot-spec-reader swap "reading" set-word-prop ;
-
-: define-reader ( class spec -- )
-    dup slot-spec-reader [
-        [ set-reader-props ] 2keep
-        dup slot-spec-offset
-        over slot-spec-reader
-        rot slot-spec-type reader-quot
-        define-slot-word
-    ] [
-        2drop
-    ] if ;
-
-: writer-effect ( class spec -- effect )
-    slot-spec-name swap ?word-name 2array 0 <effect> ;
-
-PREDICATE: slot-writer < word "writing" word-prop >boolean ;
-
-: set-writer-props ( class spec -- )
-    2dup writer-effect
-    over slot-spec-writer
-    swap "declared-effect" set-word-prop
-    slot-spec-writer swap "writing" set-word-prop ;
-
-: define-writer ( class spec -- )
-    dup slot-spec-writer [
-        [ set-writer-props ] 2keep
-        dup slot-spec-offset
-        swap slot-spec-writer
-        [ set-slot ]
-        define-slot-word
-    ] [
-        2drop
-    ] if ;
-
-: define-slot ( class spec -- )
-    2dup define-reader define-writer ;
-
-: define-slots ( class specs -- )
-    [ define-slot ] with each ;
-
-: reader-word ( class name vocab -- word )
-    >r >r "-" r> 3append r> create ;
-
-: writer-word ( class name vocab -- word )
-    >r [ swap "set-" % % "-" % % ] "" make r> create ;
-
-: (simple-slot-word) ( class name -- class name vocab )
-    over word-vocabulary >r >r word-name r> r> ;
-
-: simple-reader-word ( class name -- word )
-    (simple-slot-word) reader-word ;
-
-: simple-writer-word ( class name -- word )
-    (simple-slot-word) writer-word ;
-
-: short-slot ( class name # -- spec )
-    >r object bootstrap-word over r> f f <slot-spec>
-    2over simple-reader-word over set-slot-spec-reader
-    -rot simple-writer-word over set-slot-spec-writer ;
-
-: long-slot ( spec # -- spec )
-    >r [ dup array? [ first2 create ] when ] map first4 r>
-    -rot <slot-spec> ;
-
-: simple-slots ( class slots base -- specs )
-    over length [ + ] with map [
-        {
-            { [ over not ] [ 2drop f ] }
-            { [ over string? ] [ >r dupd r> short-slot ] }
-            { [ over array? ] [ long-slot ] }
-        } cond
-    ] 2map sift nip ;
-
-: slot-of-reader ( reader specs -- spec/f )
-    [ slot-spec-reader eq? ] with find nip ;
-
-: slot-of-writer ( writer specs -- spec/f )
-    [ slot-spec-writer eq? ] with find nip ;
diff --git a/core/slots/slots-docs.factor b/core/slots/slots-docs.factor
index 29facb31f2..d2d7dc1102 100755
--- a/core/slots/slots-docs.factor
+++ b/core/slots/slots-docs.factor
@@ -1,20 +1,21 @@
 USING: help.markup help.syntax generic kernel.private parser
 words kernel quotations namespaces sequences words arrays
-effects generic.standard classes.tuple classes.builtin
-slots.private classes strings math ;
+effects generic.standard classes.builtin
+slots.private classes strings math assocs byte-arrays alien
+math classes.tuple ;
 IN: slots
 
 ARTICLE: "accessors" "Slot accessors"
-"For each tuple slot, methods are defined on two accessor words in the " { $vocab-link "accessors" } " vocabulary:"
-{ $list
-    { "The " { $emphasis "reader" } " is named " { $snippet { $emphasis "slot" } ">>" } " and pushes the value of a slot on the stack." }
-    { "The " { $emphasis "writer" } " is named " { $snippet "(>>" { $emphasis "slot" } ")" } " and stores a value into a slot. It has stack effect " { $snippet "( value object -- )" } "." }
-}
-"In addition, two utility words are defined for each distinct slot name used in the system:"
-{ $list
-    { "The " { $emphasis "setter" } " is named " { $snippet ">>" { $emphasis "slot" } } " and stores a value into a slot. It has stack effect " { $snippet "( object value -- object )" } "." }
-    { "The " { $emphasis "changer" } " is named " { $snippet "change-" { $emphasis "slot" } } ". It applies a quotation to the current slot value and stores the result back in the slot; it has stack effect " { $snippet "( object quot -- object )" } "." }
-}
+"For every tuple slot, a " { $emphasis "reader" } " method is defined in the " { $vocab-link "accessors" } " vocabulary. The reader is named " { $snippet { $emphasis "slot" } ">>" } " and given a tuple, pushes the slot value on the stack."
+$nl
+"Writable slots - that is, those not attributed " { $link read-only } " - also have a " { $emphasis "writer" } ". The writer is named " { $snippet "(>>" { $emphasis "slot" } ")" } " and stores a value into a slot. It has stack effect " { $snippet "( value object -- )" } ". If the slot is specialized to a specific class, the writer checks that the value being written into the slot is an instance of that class first. See " { $link "tuple-declarations" } " for details."
+$nl
+"In addition, two utility words are defined for each writable slot."
+$nl
+"The " { $emphasis "setter" } " is named " { $snippet ">>" { $emphasis "slot" } } " and stores a value into a slot. It has stack effect " { $snippet "( object value -- object )" } "."
+$nl
+"The " { $emphasis "changer" } " is named " { $snippet "change-" { $emphasis "slot" } } ". It applies a quotation to the current slot value and stores the result back in the slot; it has stack effect " { $snippet "( object quot -- object )" } "."
+$nl
 "Since the reader and writer are generic, words can be written which do not depend on the specific class of tuple passed in, but instead work on any tuple that defines slots with certain names."
 $nl
 "In most cases, using the setter is preferred over the writer because the stack effect is better suited to the common case where the tuple is needed again, and where the new slot value was just computed and so is at the top of the stack. For example, consider the case where you want to create a tuple and fill in the slots with literals. The following version uses setters:"
@@ -61,6 +62,27 @@ $nl
 }
 { $see-also "slots" "mirrors" } ;
 
+ARTICLE: "slot-initial-values" "Initial values of slots"
+"An initial value for a slot can be specified with the " { $link initial: } " slot declaration attribute. For certain classes, the initial value is optional; in these cases, it does not need to be specified. For others, it is required. Initial values can be used independently of class declaration, but if specified, the value must satisfy the class predicate."
+$nl
+"The following classes have default initial values:"
+{ $table
+    { { { $link f } } { $link f } }
+    { { { $link fixnum } } { $snippet "0" } }
+    { { { $link float } } { $snippet "0.0" } }
+    { { { $link string } } { $snippet "\"\"" } }
+    { { { $link byte-array } } { $snippet "B{ }" } }
+    { { { $link simple-alien } } { $snippet "BAD-ALIEN" } }
+}
+"All other classes are handled with one of two cases:"
+{ $list
+    { "If the class is a union or mixin class which " { $emphasis "contains" } " one of the above known classes, then the initial value of the class is that of the known class, with preference given to classes earlier in the list. For example, if the slot is declared " { $link object } " (this is the default), the initial value is " { $link f } ". Similarly for " { $link sequence } " and " { $link assoc } "." }
+    { "If the class is a tuple class, the initial value of the slot is a new, shared instance of the class created with " { $link new } "." }
+    { "Otherwise, a " { $link no-initial-value } " error is thrown. In this case, an initial value must be specified explicitly using " { $link initial: } "." }
+}
+"A word can be used to check if a class has an initial value or not:"
+{ $subsection initial-value } ;
+
 ARTICLE: "slots" "Slots"
 "A " { $emphasis "slot" } " is a component of an object which can store a value."
 $nl
@@ -92,15 +114,15 @@ HELP: slot-spec
 $nl
 "The slots of a slot specification are:"
 { $list
-    { { $link slot-spec-type } " - a " { $link class } " declaring the set of possible values for the slot." }
-    { { $link slot-spec-name } " - a " { $link string } " identifying the slot." }
-    { { $link slot-spec-offset } " - an " { $link integer } " offset specifying where the slot value is stored inside instances of the relevant class. This is an implementation detail." }
-    { { $link slot-spec-reader } " - a " { $link word } " for reading the value of this slot." }
-    { { $link slot-spec-writer } " - a " { $link word } " for writing the value of this slot." }
+    { { $snippet "name" } " - a " { $link string } " identifying the slot." }
+    { { $snippet "offset" } " - an " { $link integer } " offset specifying where the slot value is stored inside instances of the relevant class. This is an implementation detail." }
+    { { $snippet "class" } " - a " { $link class } " declaring the set of possible values for the slot." }
+    { { $snippet "initial" } " - an initial value for the slot." }
+    { { $snippet "read-only" } " - a boolean indicating whether the slot is read only or not. Read only slots do not have a writer method associated with them." }
 } } ;
 
 HELP: define-typecheck
-{ $values { "class" class } { "generic" "a generic word" } { "quot" quotation } }
+{ $values { "class" class } { "generic" "a generic word" } { "quot" quotation } { "props" "an assoc of word properties" } }
 { $description
     "Defines a generic word with the " { $link standard-combination } " using dispatch position 0, and having one method on " { $snippet "class" } "."
     $nl
@@ -109,36 +131,23 @@ HELP: define-typecheck
         "GENERIC: generic"
         "M: class generic quot ;"
     }
-    "It checks if the top of the stack is an instance of " { $snippet "class" } ", and if so, executes the quotation. Delegation is respected."
+    "It checks if the top of the stack is an instance of " { $snippet "class" } ", and if so, executes the quotation."
 }
-{ $notes "This word is used internally to wrap low-level code that does not do type-checking in safe user-visible words. For example, see how " { $link word-name } " is implemented." } ;
-
-HELP: define-slot-word
-{ $values { "class" class } { "slot" "a positive integer" } { "word" word } { "quot" quotation } }
-{ $description "Defines " { $snippet "word" } " to be a simple type-checking generic word that receives the slot number on the stack as a fixnum." }
-$low-level-note ;
-
-HELP: reader-effect
-{ $values { "class" class } { "spec" slot-spec } { "effect" "an instance of " { $link effect } } }
-{ $description "The stack effect of slot reader words is " { $snippet "( object -- value )" } "." } ;
+{ $notes "This word is used internally to wrap unsafe low-level code in a type-checking stub." } ;
 
 HELP: define-reader
-{ $values { "class" class } { "name" string } { "slot" integer } }
-{ $description "Defines a reader word to read a slot from instances of " { $snippet "class" } "." }
+{ $values { "class" class } { "slot-spec" slot-spec } }
+{ $description "Defines a reader word to read a slot specified by " { $snippet "slot-spec" } "." }
 $low-level-note ;
 
-HELP: writer-effect
-{ $values { "class" class } { "spec" slot-spec } { "effect" "an instance of " { $link effect } } }
-{ $description "The stack effect of slot writer words is " { $snippet "( value obj -- )" } "." } ;
-
 HELP: define-writer
-{ $values { "class" class } { "name" string } { "slot" integer } }
-{ $description "Defines a generic word " { $snippet "writer" } " to write a new value to a slot in instances of " { $snippet "class" } "." }
+{ $values { "class" class } { "slot-spec" slot-spec } }
+{ $description "Defines a generic word " { $snippet "writer" } " to write a new value to a slot specified by " { $snippet "slot-spec" } "." }
 $low-level-note ;
 
 HELP: define-slot-methods
-{ $values { "class" class } { "name" string } { "slot" integer } }
-{ $description "Defines a reader, writer, setter and changer for a slot in instances of " { $snippet "class" } "." }
+{ $values { "class" class } { "slot-spec" slot-spec } }
+{ $description "Defines a reader, writer, setter and changer for a slot specified by " { $snippet "slot-spec" } "." }
 $low-level-note ;
 
 HELP: define-accessors
diff --git a/core/slots/slots-tests.factor b/core/slots/slots-tests.factor
new file mode 100644
index 0000000000..4f4a0cadad
--- /dev/null
+++ b/core/slots/slots-tests.factor
@@ -0,0 +1,36 @@
+IN: slots.tests
+USING: math accessors slots strings generic.standard kernel
+tools.test generic words parser eval ;
+
+TUPLE: r/w-test foo ;
+
+TUPLE: r/o-test { foo read-only } ;
+
+[ r/o-test new 123 >>foo ] [ no-method? ] must-fail-with
+
+TUPLE: decl-test { foo integer } ;
+
+[ decl-test new 1.0 >>foo ] [ bad-slot-value? ] must-fail-with
+
+TUPLE: hello length ;
+
+[ 3 ] [ "xyz" length>> ] unit-test
+
+[ "xyz" 4 >>length ] [ no-method? ] must-fail-with
+
+[ t ] [ r/o-test \ foo>> method "foldable" word-prop ] unit-test
+[ t ] [ r/o-test \ foo>> method "flushable" word-prop ] unit-test
+
+[ f ] [ r/w-test \ foo>> method "foldable" word-prop ] unit-test
+[ t ] [ r/w-test \ foo>> method "flushable" word-prop ] unit-test
+
+! See if declarations are cleared on redefinition
+[ ] [ "IN: slots.tests TUPLE: r/w-test { foo read-only } ;" eval ] unit-test
+
+[ t ] [ r/w-test \ foo>> method "foldable" word-prop ] unit-test
+[ t ] [ r/w-test \ foo>> method "flushable" word-prop ] unit-test
+
+[ ] [ "IN: slots.tests TUPLE: r/w-test foo ;" eval ] unit-test
+
+[ f ] [ r/w-test \ foo>> method "foldable" word-prop ] unit-test
+[ t ] [ r/w-test \ foo>> method "flushable" word-prop ] unit-test
diff --git a/core/slots/slots.factor b/core/slots/slots.factor
index e46e507b9d..6f831c30c5 100755
--- a/core/slots/slots.factor
+++ b/core/slots/slots.factor
@@ -1,65 +1,112 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel kernel.private math namespaces
-sequences strings words effects generic generic.standard
-classes slots.private combinators ;
+USING: arrays byte-arrays kernel kernel.private math namespaces
+sequences strings words effects generic generic.standard classes
+classes.algebra slots.private combinators accessors words
+sequences.private assocs alien ;
 IN: slots
 
-TUPLE: slot-spec type name offset reader writer ;
+TUPLE: slot-spec name offset class initial read-only ;
 
-C: <slot-spec> slot-spec
+PREDICATE: reader < word "reader" word-prop ;
 
-: define-typecheck ( class generic quot -- )
-    over define-simple-generic
-    >r create-method r> define ;
+PREDICATE: writer < word "writer" word-prop ;
 
-: define-slot-word ( class slot word quot -- )
-    rot >fixnum prefix define-typecheck ;
+: <slot-spec> ( -- slot-spec )
+    slot-spec new
+        object bootstrap-word >>class ;
 
-: reader-quot ( decl -- quot )
-    [
-        \ slot ,
-        dup object bootstrap-word eq?
-        [ drop ] [ 1array , \ declare , ] if
-    ] [ ] make ;
+: define-typecheck ( class generic quot props -- )
+    [ dup define-simple-generic create-method ] 2dip
+    [ [ props>> ] [ drop ] [ ] tri* update ]
+    [ drop define ]
+    3bi ;
 
 : create-accessor ( name effect -- word )
     >r "accessors" create dup r>
     "declared-effect" set-word-prop ;
 
-: reader-effect T{ effect f { "object" } { "value" } } ; inline
+: reader-quot ( slot-spec -- quot )
+    [
+        dup offset>> ,
+        \ slot ,
+        dup class>> object bootstrap-word eq?
+        [ drop ] [ class>> 1array , \ declare , ] if
+    ] [ ] make ;
 
 : reader-word ( name -- word )
-    ">>" append reader-effect create-accessor ;
+    ">>" append (( object -- value )) create-accessor
+    dup t "reader" set-word-prop ;
 
-: define-reader ( class slot name -- )
-    reader-word object reader-quot define-slot-word ;
+: reader-props ( slot-spec -- assoc )
+    [
+        [ "reading" set ]
+        [ read-only>> [ t "foldable" set ] when ] bi
+        t "flushable" set
+    ] H{ } make-assoc ;
 
-: writer-effect T{ effect f { "value" "object" } { } } ; inline
+: define-reader ( class slot-spec -- )
+    [ name>> reader-word ] [ reader-quot ] [ reader-props ] tri
+    define-typecheck ;
 
 : writer-word ( name -- word )
-    "(>>" swap ")" 3append writer-effect create-accessor ;
+    "(>>" swap ")" 3append (( value object -- )) create-accessor
+    dup t "writer" set-word-prop ;
 
-: define-writer ( class slot name -- )
-    writer-word [ set-slot ] define-slot-word ;
+ERROR: bad-slot-value value class ;
 
-: setter-effect T{ effect f { "object" "value" } { "object" } } ; inline
+: writer-quot/object ( slot-spec -- )
+    offset>> , \ set-slot , ;
+
+: writer-quot/coerce ( slot-spec -- )
+    [ \ >r , class>> "coercer" word-prop % \ r> , ]
+    [ offset>> , \ set-slot , ]
+    bi ;
+
+: writer-quot/check ( slot-spec -- )
+    [ offset>> , ]
+    [
+        \ pick ,
+        dup class>> "predicate" word-prop %
+        [ set-slot ] ,
+        class>> [ 2nip bad-slot-value ] curry [ ] like ,
+        \ if ,
+    ]
+    bi ;
+
+: writer-quot/fixnum ( slot-spec -- )
+    [ >r >fixnum r> ] % writer-quot/check ;
+
+: writer-quot ( slot-spec -- quot )
+    [
+        {
+            { [ dup class>> object bootstrap-word eq? ] [ writer-quot/object ] }
+            { [ dup class>> "coercer" word-prop ] [ writer-quot/coerce ] }
+            { [ dup class>> fixnum bootstrap-word class<= ] [ writer-quot/fixnum ] }
+            [ writer-quot/check ]
+        } cond
+    ] [ ] make ;
+
+: writer-props ( slot-spec -- assoc )
+    [ "writing" set ] H{ } make-assoc ;
+
+: define-writer ( class slot-spec -- )
+    [ name>> writer-word ] [ writer-quot ] [ writer-props ] tri
+    define-typecheck ;
 
 : setter-word ( name -- word )
-    ">>" prepend setter-effect create-accessor ;
+    ">>" prepend (( object value -- object )) create-accessor ;
 
-: define-setter ( name -- )
-    dup setter-word dup deferred? [
+: define-setter ( slot-spec -- )
+    name>> dup setter-word dup deferred? [
         [ \ over , swap writer-word , ] [ ] make define-inline
     ] [ 2drop ] if ;
 
-: changer-effect T{ effect f { "object" "quot" } { "object" } } ; inline
-
 : changer-word ( name -- word )
-    "change-" prepend changer-effect create-accessor ;
+    "change-" prepend (( object quot -- object )) create-accessor ;
 
-: define-changer ( name -- )
-    dup changer-word dup deferred? [
+: define-changer ( slot-spec -- )
+    name>> dup changer-word dup deferred? [
         [
             [ over >r >r ] %
             over reader-word ,
@@ -68,17 +115,101 @@ C: <slot-spec> slot-spec
         ] [ ] make define-inline
     ] [ 2drop ] if ;
 
-: define-slot-methods ( class slot name -- )
-    dup define-changer
-    dup define-setter
-    3dup define-reader
-    define-writer ;
+: define-slot-methods ( class slot-spec -- )
+    [ define-reader ]
+    [
+        dup read-only>> [ 2drop ] [
+            [ define-setter drop ]
+            [ define-changer drop ]
+            [ define-writer ]
+            2tri
+        ] if
+    ] 2bi ;
 
 : define-accessors ( class specs -- )
-    [
-        dup slot-spec-offset swap slot-spec-name
-        define-slot-methods
-    ] with each ;
+    [ define-slot-methods ] with each ;
+
+: define-protocol-slot ( name -- )
+    {
+        [ reader-word drop ]
+        [ writer-word drop ]
+        [ setter-word drop ]
+        [ changer-word drop ]
+    } cleave ;
+
+ERROR: no-initial-value class ;
+
+GENERIC: initial-value* ( class -- object )
+
+M: class initial-value* no-initial-value ;
+
+: initial-value ( class -- object )
+    {
+        { [ \ f bootstrap-word over class<= ] [ f ] }
+        { [ \ array-capacity bootstrap-word over class<= ] [ 0 ] }
+        { [ float bootstrap-word over class<= ] [ 0.0 ] }
+        { [ string bootstrap-word over class<= ] [ "" ] }
+        { [ array bootstrap-word over class<= ] [ { } ] }
+        { [ byte-array bootstrap-word over class<= ] [ B{ } ] }
+        { [ simple-alien bootstrap-word over class<= ] [ <bad-alien> ] }
+        [ dup initial-value* ]
+    } cond nip ;
+
+GENERIC: make-slot ( desc -- slot-spec )
+
+M: string make-slot
+    <slot-spec>
+        swap >>name ;
+
+: peel-off-name ( slot-spec array -- slot-spec array )
+    [ first >>name ] [ rest ] bi ; inline
+
+: peel-off-class ( slot-spec array -- slot-spec array )
+    dup empty? [
+        dup first class? [
+            [ first >>class ] [ rest ] bi
+        ] when
+    ] unless ;
+
+ERROR: bad-slot-attribute key ;
+
+: peel-off-attributes ( slot-spec array -- slot-spec array )
+    dup empty? [
+        unclip {
+            { initial: [ [ first >>initial ] [ rest ] bi ] }
+            { read-only [ [ t >>read-only ] dip ] }
+            [ bad-slot-attribute ]
+        } case
+    ] unless ;
+
+ERROR: bad-initial-value name ;
+
+: check-initial-value ( slot-spec -- slot-spec )
+    dup initial>> [
+        [ ] [
+            dup [ initial>> ] [ class>> ] bi instance?
+            [ name>> bad-initial-value ] unless
+        ] if-bootstrapping
+    ] [
+        dup class>> initial-value >>initial
+    ] if ;
+
+M: array make-slot
+    <slot-spec>
+        swap
+        peel-off-name
+        peel-off-class
+        [ dup empty? not ] [ peel-off-attributes ] [ ] while drop
+    check-initial-value ;
+
+M: slot-spec make-slot
+    check-initial-value ;
+
+: make-slots ( slots -- specs )
+    [ make-slot ] map ;
+
+: finalize-slots ( specs base -- specs )
+    over length [ + ] with map [ >>offset ] 2map ;
 
 : slot-named ( name specs -- spec/f )
-    [ slot-spec-name = ] with find nip ;
+    [ name>> = ] with find nip ;
diff --git a/core/sorting/sorting-docs.factor b/core/sorting/sorting-docs.factor
index 5827a711c8..036ff2f759 100644
--- a/core/sorting/sorting-docs.factor
+++ b/core/sorting/sorting-docs.factor
@@ -2,26 +2,25 @@ USING: help.markup help.syntax kernel words math
 sequences math.order ;
 IN: sorting
 
-ARTICLE: "sequences-sorting" "Sorting and binary search"
-"Sorting and binary search combinators all take comparator quotations with stack effect " { $snippet "( elt1 elt2 -- n )" } " that order the two given elements and output a value whose sign denotes the result:"
-{ $list
-    { "positive - indicates that " { $snippet "elt1" } " follows " { $snippet "elt2" } }
-    { "zero - indicates that " { $snippet "elt1" } " is ordered equivalently to " { $snippet "elt2" } }
-    { "negative - indicates that " { $snippet "elt1" } " precedes " { $snippet "elt2" } }
-}
+ARTICLE: "sequences-sorting" "Sorting sequences"
+"The " { $vocab-link "sorting" } " vocabulary implements the merge-sort algorithm. It runs in " { $snippet "O(n log n)" } " time, and is a " { $emphasis "stable" } " sort, meaning that the order of equal elements is preserved."
+$nl
+"The algorithm only allocates two additional arrays, both the size of the input sequence, and uses iteration rather than recursion, and thus is suitable for sorting large sequences."
+$nl
+"Sorting combinators all take comparator quotations with stack effect " { $snippet "( elt1 elt2 -- <=> )" } ", where the output value is one of the three " { $link "order-specifiers" } "."
+$nl
 "Sorting a sequence with a custom comparator:"
 { $subsection sort }
 "Sorting a sequence with common comparators:"
 { $subsection natural-sort }
 { $subsection sort-keys }
-{ $subsection sort-values }
-"Binary search:"
-{ $subsection binsearch }
-{ $subsection binsearch* } ;
+{ $subsection sort-values } ;
+
+ABOUT: "sequences-sorting"
 
 HELP: sort
-{ $values { "seq" "a sequence" } { "quot" "a comparator quotation" } { "sortedseq" "a new sorted sequence" } }
-{ $description "Sorts the elements into a new sequence of the same class as " { $snippet "seq" } "." } ;
+{ $values { "seq" "a sequence" } { "quot" "a quotation with stack effect " { $snippet "( obj1 obj2 -- <=> )" } } { "sortedseq" "a new sorted sequence" } }
+{ $description "Sorts the elements into a new array." } ;
 
 HELP: sort-keys
 { $values { "seq" "an alist" } { "sortedseq" "a new sorted sequence" } }
@@ -43,24 +42,4 @@ HELP: midpoint@
 { $values { "seq" "a sequence" } { "n" integer } }
 { $description "Outputs the index of the midpoint of " { $snippet "seq" } "." } ;
 
-HELP: midpoint
-{ $values { "seq" "a sequence" } { "elt" object } }
-{ $description "Outputs the element at the midpoint of a sequence." } ;
-
-HELP: partition
-{ $values { "seq" "a sequence" } { "n" integer } { "slice" slice } }
-{ $description "Outputs a slice of the first or second half of the sequence, respectively, depending on the integer's sign." } ;
-
-HELP: binsearch
-{ $values { "elt" object } { "seq" "a sorted sequence" } { "quot" "a comparator quotation" } { "i" "the index of the search result" } }
-{ $description "Given a sequence that is sorted with respect to the " { $snippet "quot" } " comparator, searches for an element equal to " { $snippet "elt" } ", or failing that, the greatest element smaller than " { $snippet "elt" } ". Comparison is performed with " { $snippet "quot" } "."
-$nl
-"Outputs f if the sequence is empty. If the sequence has at least one element, this word always outputs a valid index." } ;
-
-HELP: binsearch*
-{ $values { "elt" object } { "seq" "a sorted sequence" } { "quot" "a comparator quotation" } { "result" "the search result" } }
-{ $description "Variant of " { $link binsearch } " which outputs the found element rather than its index in the sequence."
-$nl
-"Outputs " { $link f } " if the sequence is empty. If the sequence has at least one element, this word always outputs a sequence element." } ;
-
 { <=> compare natural-sort sort-keys sort-values } related-words
diff --git a/core/sorting/sorting-tests.factor b/core/sorting/sorting-tests.factor
index a56c41b620..74cbe3b532 100755
--- a/core/sorting/sorting-tests.factor
+++ b/core/sorting/sorting-tests.factor
@@ -1,8 +1,8 @@
 USING: sorting sequences kernel math math.order random
-tools.test vectors ;
+tools.test vectors sets vocabs ;
 IN: sorting.tests
 
-[ [ ] ] [ [ ] natural-sort ] unit-test
+[ { } ] [ { } natural-sort ] unit-test
 
 [ { 270000000 270000001 } ]
 [ T{ slice f 270000000 270000002 270000002 } natural-sort ]
@@ -11,18 +11,18 @@ unit-test
 [ t ] [
     100 [
         drop
-        100 [ drop 20 random [ drop 1000 random ] map ] map natural-sort [ before=? ] monotonic?
+        100 [ 20 random [ 1000 random ] replicate ] replicate
+        dup natural-sort
+        [ set= ] [ nip [ before=? ] monotonic? ] 2bi and
     ] all?
 ] unit-test
 
 [ ] [ { 1 2 } [ 2drop 1 ] sort drop ] unit-test
 
-[ 3 ] [ { 1 2 3 4 } midpoint ] unit-test
+! Is it a stable sort?
+[ t ] [ { { 1 "a" } { 1 "b" } { 1 "c" } } dup sort-keys = ] unit-test
 
-[ f ] [ 3 { } [ <=> ] binsearch ] unit-test
-[ 0 ] [ 3 { 3 } [ <=> ] binsearch ] unit-test
-[ 1 ] [ 2 { 1 2 3 } [ <=> ] binsearch ] unit-test
-[ 3 ] [ 4 { 1 2 3 4 5 6 } [ <=> ] binsearch ] unit-test
-[ 2 ] [ 3.5 { 1 2 3 4 5 6 7 8 } [ <=> ] binsearch ] unit-test
-[ 4 ] [ 5.5 { 1 2 3 4 5 6 7 8 } [ <=> ] binsearch ] unit-test
-[ 10 ] [ 10 20 >vector [ <=> ] binsearch ] unit-test
+[ { { 1 "a" } { 1 "b" } { 1 "c" } { 1 "e" } { 2 "d" } } ]
+[ { { 1 "a" } { 1 "b" } { 1 "c" } { 2 "d" } { 1 "e" } } sort-keys ] unit-test
+
+[ ] [ all-words natural-sort drop ] unit-test
diff --git a/core/sorting/sorting.factor b/core/sorting/sorting.factor
index dac1c08e46..b57e661624 100755
--- a/core/sorting/sorting.factor
+++ b/core/sorting/sorting.factor
@@ -1,49 +1,143 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
+! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel math sequences vectors math.order
-sequences sequences.private growable math.order ;
+USING: accessors arrays kernel math sequences vectors math.order
+sequences sequences.private math.order ;
 IN: sorting
 
-DEFER: sort
+! Optimized merge-sort:
+!
+! 1) only allocates 2 temporary arrays
+
+! 2) first phase (interchanging pairs x[i], x[i+1] where
+! x[i] > x[i+1]) is handled specially
 
 <PRIVATE
 
-: <iterator> 0 tail-slice ; inline
+TUPLE: merge
+{ seq    array }
+{ accum  vector }
+{ accum1 vector }
+{ accum2 vector }
+{ from1  array-capacity }
+{ to1    array-capacity }
+{ from2  array-capacity }
+{ to2    array-capacity } ;
 
-: this ( slice -- obj )
-    dup slice-from swap slice-seq nth-unsafe ; inline
-
-: next ( iterator -- )
-    dup slice-from 1+ swap set-slice-from ; inline
-
-: smallest ( iter1 iter2 quot -- elt )
-    >r over this over this r> call +lt+ eq?
-    -rot ? [ this ] keep next ; inline
-
-: (merge) ( iter1 iter2 quot accum -- )
-    >r pick empty? [
-        drop nip r> push-all
-    ] [
-        over empty? [
-            2drop r> push-all
+: dump ( from to seq accum -- )
+    #! Optimize common case where to - from = 1, 2, or 3.
+    >r >r 2dup swap - r> r> pick 1 = 
+    [ >r >r 2drop r> nth-unsafe r> push ] [
+        pick 2 = [
+            >r >r 2drop dup 1+
+            r> [ nth-unsafe ] curry bi@
+            r> [ push ] curry bi@
         ] [
-            3dup smallest r> [ push ] keep (merge)
+            pick 3 = [
+                >r >r 2drop dup 1+ dup 1+
+                r> [ nth-unsafe ] curry tri@
+                r> [ push ] curry tri@
+            ] [
+                >r nip subseq r> push-all
+            ] if
         ] if
     ] if ; inline
 
-: merge ( sorted1 sorted2 quot -- result )
-    >r [ [ <iterator> ] bi@ ] 2keep r>
-    rot length rot length + <vector>
-    [ (merge) ] keep underlying ; inline
+: l-elt   [ from1>> ] [ seq>> ] bi nth-unsafe ; inline
+: r-elt   [ from2>> ] [ seq>> ] bi nth-unsafe ; inline
+: l-done? [ from1>> ] [ to1>> ] bi number= ; inline
+: r-done? [ from2>> ] [ to2>> ] bi number= ; inline
+: dump-l  [ [ from1>> ] [ to1>> ] [ seq>> ] tri ] [ accum>> ] bi dump ; inline
+: dump-r  [ [ from2>> ] [ to2>> ] [ seq>> ] tri ] [ accum>> ] bi dump ; inline
+: l-next  [ [ l-elt ] [ [ 1+ ] change-from1 drop ] bi ] [ accum>> ] bi push ; inline
+: r-next  [ [ r-elt ] [ [ 1+ ] change-from2 drop ] bi ] [ accum>> ] bi push ; inline
+: decide  [ [ l-elt ] [ r-elt ] bi ] dip call +gt+ eq? ; inline
 
-: conquer ( first second quot -- result )
-    [ tuck >r >r sort r> r> sort ] keep merge ; inline
+: (merge) ( merge quot: ( elt1 elt2 -- <=> ) -- )
+    over r-done? [ drop dump-l ] [
+        over l-done? [ drop dump-r ] [
+            2dup decide
+            [ over r-next ] [ over l-next ] if
+            (merge)
+        ] if
+    ] if ; inline recursive
+
+: flip-accum ( merge -- )
+    dup [ accum>> ] [ accum1>> ] bi eq? [
+        dup accum1>> underlying>> >>seq
+        dup accum2>> >>accum
+    ] [
+        dup accum1>> >>accum
+        dup accum2>> underlying>> >>seq
+    ] if
+    dup accum>> 0 >>length 2drop ; inline
+
+: <merge> ( seq -- merge )
+    \ merge new
+        over >vector >>accum1
+        swap length <vector> >>accum2
+        dup accum1>> underlying>> >>seq
+        dup accum2>> >>accum
+        dup accum>> 0 >>length drop ; inline
+
+: compute-midpoint ( merge -- merge )
+    dup [ from1>> ] [ to2>> ] bi + 2/ >>to1 ; inline
+
+: merging ( from to merge -- )
+    swap >>to2
+    swap >>from1
+    compute-midpoint
+    dup [ to1>> ] [ seq>> length ] bi min >>to1
+    dup [ to2>> ] [ seq>> length ] bi min >>to2
+    dup to1>> >>from2
+    drop ; inline
+
+: nth-chunk ( n size -- from to ) [ * dup ] keep + ; inline
+
+: chunks ( length size -- n ) [ align ] keep /i ; inline
+
+: each-chunk ( length size quot -- )
+    [ [ chunks ] keep ] dip
+    [ nth-chunk ] prepose curry
+    each-integer ; inline
+
+: merge ( from to merge quot -- )
+    [ [ merging ] keep ] dip (merge) ; inline
+
+: sort-pass ( merge size quot -- )
+    [
+        over flip-accum
+        over [ seq>> length ] 2dip
+    ] dip
+    [ merge ] 2curry each-chunk ; inline
+
+: sort-loop ( merge quot -- )
+    [ 2 [ over seq>> length over > ] ] dip
+    [ [ 1 shift 2dup ] dip sort-pass ] curry
+    [ ] while 2drop ; inline
+
+: each-pair ( seq quot -- )
+    [ [ length 1+ 2/ ] keep ] dip
+    [ [ 1 shift dup 1+ ] dip ] prepose curry each-integer ; inline
+
+: (sort-pairs) ( i1 i2 seq quot accum -- )
+    [ 2dup length = ] 2dip rot [
+        [ drop nip nth ] dip push
+    ] [
+        [
+            [ tuck [ nth-unsafe ] 2bi@ 2dup ] dip call +gt+ eq?
+            [ swap ] when
+        ] dip tuck [ push ] 2bi@
+    ] if ; inline
+
+: sort-pairs ( merge quot -- )
+    [ [ seq>> ] [ accum>> ] bi ] dip swap
+    [ (sort-pairs) ] 2curry each-pair ; inline
 
 PRIVATE>
 
 : sort ( seq quot -- sortedseq )
-    over length 1 <=
-    [ drop ] [ over >r >r halves r> conquer r> like ] if ;
+    [ <merge> ] dip
+    [ sort-pairs ] [ sort-loop ] [ drop accum>> underlying>> ] 2tri ;
     inline
 
 : natural-sort ( seq -- sortedseq ) [ <=> ] sort ;
@@ -53,25 +147,3 @@ PRIVATE>
 : sort-values ( seq -- sortedseq ) [ [ second ] compare ] sort ;
 
 : sort-pair ( a b -- c d ) 2dup after? [ swap ] when ;
-
-: midpoint ( seq -- elt )
-    [ midpoint@ ] keep nth-unsafe ; inline
-
-: partition ( seq n -- slice )
-    +gt+ eq? not swap halves ? ; inline
-
-: (binsearch) ( elt quot seq -- i )
-    dup length 1 <= [
-        slice-from 2nip
-    ] [
-        [ midpoint swap call ] 3keep roll dup +eq+ eq?
-        [ drop dup slice-from swap midpoint@ + 2nip ]
-        [ partition (binsearch) ] if
-    ] if ; inline
-
-: binsearch ( elt seq quot -- i )
-    swap dup empty?
-    [ 3drop f ] [ <flat-slice> (binsearch) ] if ; inline
-
-: binsearch* ( elt seq quot -- result )
-    over >r binsearch [ r> ?nth ] [ r> drop f ] if* ; inline
diff --git a/core/source-files/source-files-docs.factor b/core/source-files/source-files-docs.factor
index 2f2f8fd0c0..89ffbfd795 100755
--- a/core/source-files/source-files-docs.factor
+++ b/core/source-files/source-files-docs.factor
@@ -30,10 +30,10 @@ HELP: source-file
 { $description "Outputs the source file associated to a path name, creating the source file first if it doesn't exist. Source files are retained in the " { $link source-files } " variable." }
 { $class-description "Instances retain information about loaded source files, and have the following slots:"
     { $list
-        { { $link source-file-path } " - a pathname string." }
-        { { $link source-file-checksum } " - the CRC32 checksum of the source file's contents at the time it was most recently loaded." }
-        { { $link source-file-uses } " - an assoc whose keys are words referenced from this source file's top level form." }
-        { { $link source-file-definitions } " - a pair of assocs, containing definitions and classes defined in this source file, respectively" }
+        { { $snippet "path" } " - a pathname string." }
+        { { $snippet "checksum" } " - the CRC32 checksum of the source file's contents at the time it was most recently loaded." }
+        { { $snippet "uses" } " - an assoc whose keys are words referenced from this source file's top level form." }
+        { { $snippet "definitions" } " - a pair of assocs, containing definitions and classes defined in this source file, respectively" }
     }
 } ;
 
@@ -78,4 +78,4 @@ HELP: rollback-source-file
 { $description "Records information to the source file after an incomplete parse which ended with an error." } ;
 
 HELP: file
-{ $var-description "Stores the " { $link source-file } " being parsed. The " { $link source-file-path } " of this object comes from the input parameter to " { $link with-source-file } "." } ;
+{ $var-description "Stores the " { $link source-file } " being parsed. The " { $snippet "path" } " of this object comes from the input parameter to " { $link with-source-file } "." } ;
diff --git a/core/source-files/source-files-tests.factor b/core/source-files/source-files-tests.factor
new file mode 100644
index 0000000000..e5e04c777f
--- /dev/null
+++ b/core/source-files/source-files-tests.factor
@@ -0,0 +1,5 @@
+IN: source-files.tests
+USING: source-files tools.test assocs sequences strings
+namespaces kernel ;
+
+[ { } ] [ source-files get keys [ string? not ] filter ] unit-test
diff --git a/core/source-files/source-files.factor b/core/source-files/source-files.factor
index 36a1806e12..767c2a1f79 100755
--- a/core/source-files/source-files.factor
+++ b/core/source-files/source-files.factor
@@ -1,10 +1,10 @@
 ! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays definitions generic assocs kernel math namespaces
-prettyprint sequences strings vectors words quotations inspector
-io.styles io combinators sorting splitting math.parser effects
-continuations debugger io.files checksums checksums.crc32 vocabs
-hashtables graphs compiler.units io.encodings.utf8 accessors ;
+sequences strings vectors words quotations io
+combinators sorting splitting math.parser effects continuations
+io.files checksums checksums.crc32 vocabs hashtables graphs
+compiler.units io.encodings.utf8 accessors ;
 IN: source-files
 
 SYMBOL: source-files
@@ -15,11 +15,11 @@ checksum
 uses definitions ;
 
 : record-checksum ( lines source-file -- )
-    >r crc32 checksum-lines r> set-source-file-checksum ;
+    [ crc32 checksum-lines ] dip (>>checksum) ;
 
 : (xref-source) ( source-file -- pathname uses )
-    dup source-file-path <pathname>
-    swap source-file-uses [ crossref? ] filter ;
+    [ path>> <pathname> ]
+    [ uses>> [ crossref? ] filter ] bi ;
 
 : xref-source ( source-file -- )
     (xref-source) crossref get add-vertex ;
@@ -31,19 +31,22 @@ uses definitions ;
     source-files get [ nip xref-source ] assoc-each ;
 
 : record-form ( quot source-file -- )
-    dup unxref-source
-    swap quot-uses keys over set-source-file-uses
+    tuck unxref-source
+    quot-uses keys >>uses
     xref-source ;
 
 : record-definitions ( file -- )
-    new-definitions get swap set-source-file-definitions ;
+    new-definitions get >>definitions drop ;
 
 : <source-file> ( path -- source-file )
-    <definitions>
-    { set-source-file-path set-source-file-definitions }
-    \ source-file construct ;
+    \ source-file new
+        swap >>path
+        <definitions> >>definitions ;
+
+ERROR: invalid-source-file-path path ;
 
 : source-file ( path -- source-file )
+    dup string? [ invalid-source-file-path ] unless
     source-files get [ <source-file> ] cache ;
 
 : reset-checksums ( -- )
@@ -53,7 +56,7 @@ uses definitions ;
         ] [ 2drop ] if
     ] assoc-each ;
 
-M: pathname where pathname-string 1 2array ;
+M: pathname where string>> 1 2array ;
 
 : forget-source ( path -- )
     [
@@ -66,19 +69,30 @@ M: pathname where pathname-string 1 2array ;
     bi ;
 
 M: pathname forget*
-    pathname-string forget-source ;
+    string>> forget-source ;
 
 : rollback-source-file ( file -- )
-    dup source-file-definitions new-definitions get [ assoc-union ] 2map
-    swap set-source-file-definitions ;
+    [
+        new-definitions get [ assoc-union ] 2map
+    ] change-definitions drop ;
 
 SYMBOL: file
 
+TUPLE: source-file-error file error ;
+
+: <source-file-error> ( msg -- error )
+    \ source-file-error new
+        file get >>file
+        swap >>error ;
+
 : with-source-file ( name quot -- )
     #! Should be called from inside with-compilation-unit.
     [
         swap source-file
         dup file set
-        source-file-definitions old-definitions set
-        [ ] [ file get rollback-source-file ] cleanup
+        definitions>> old-definitions set
+        [
+            file get rollback-source-file
+            <source-file-error> rethrow
+        ] recover
     ] with-scope ; inline
diff --git a/core/splitting/splitting-docs.factor b/core/splitting/splitting-docs.factor
index 1beafc710a..472b303059 100644
--- a/core/splitting/splitting-docs.factor
+++ b/core/splitting/splitting-docs.factor
@@ -1,25 +1,6 @@
 USING: help.markup help.syntax sequences strings ;
 IN: splitting
 
-ARTICLE: "groups-clumps" "Groups and clumps"
-"A virtual sequence for splitting a sequence into disjoint, fixed-length subsequences:"
-{ $subsection groups }
-{ $subsection <groups> }
-{ $subsection <sliced-groups> }
-"A virtual sequence for splitting a sequence into overlapping, fixed-length subsequences:"
-{ $subsection clumps }
-{ $subsection <clumps> }
-{ $subsection <sliced-clumps> }
-"The difference can be summarized as the following:"
-{ $list
-    { "With groups, the subsequences form the original sequence when concatenated:"
-        { $unchecked-example "dup n groups concat sequence= ." "t" }
-    }
-    { "With clumps, collecting the first element of each subsequence but the last one, together with the last subseqence, yields the original sequence:"
-        { $unchecked-example "dup n clumps unclip-last >r [ first ] map r> append sequence= ." "t" }
-    }
-} ;
-
 ARTICLE: "sequences-split" "Splitting sequences"
 "Splitting sequences at occurrences of subsequences:"
 { $subsection ?head }
@@ -29,8 +10,7 @@ ARTICLE: "sequences-split" "Splitting sequences"
 { $subsection split1 }
 { $subsection split }
 "Splitting a string into lines:"
-{ $subsection string-lines }
-{ $subsection "groups-clumps" } ;
+{ $subsection string-lines } ;
 
 ABOUT: "sequences-split"
 
@@ -49,83 +29,6 @@ HELP: split
 { $description "Splits " { $snippet "seq" } " at each occurrence of an element of " { $snippet "separators" } ", and outputs an array of pieces. The pieces do not include the elements along which the sequence was split." }
 { $examples { $example "USING: prettyprint splitting ;" "\"hello world-how are you?\" \" -\" split ." "{ \"hello\" \"world\" \"how\" \"are\" \"you?\" }" } } ;
 
-HELP: groups
-{ $class-description "Instances are virtual sequences whose elements are disjoint fixed-length subsequences of an underlying sequence. Groups are mutable and resizable if the underlying sequence is mutable and resizable, respectively."
-$nl
-"New groups are created by calling " { $link <groups> } " and " { $link <sliced-groups> } "." }
-{ $see-also group } ;
-
-HELP: group
-{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "array" "a sequence of sequences" } }
-{ $description "Splits the sequence into disjoint groups of " { $snippet "n" } " elements and collects the groups into a new array." }
-{ $notes "If the sequence length is not a multiple of " { $snippet "n" } ", the final subsequence in the list will be shorter than " { $snippet "n" } " elements." }
-{ $examples
-    { $example "USING: splitting prettyprint ;" "{ 3 1 3 3 7 } 2 group ." "{ { 3 1 } { 3 3 } { 7 } }" }
-} ;
-
-HELP: <groups>
-{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "groups" groups } }
-{ $description "Outputs a virtual sequence whose elements are disjoint subsequences of " { $snippet "n" } " elements from the underlying sequence." }
-{ $examples
-    { $example
-        "USING: arrays kernel prettyprint sequences splitting ;"
-        "9 >array 3 <groups> dup reverse-here concat >array ." "{ 6 7 8 3 4 5 0 1 2 }"
-    }
-} ;
-
-HELP: <sliced-groups>
-{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "groups" groups } }
-{ $description "Outputs a virtual sequence whose elements are overlapping subsequences of " { $snippet "n" } " elements from the underlying sequence." }
-{ $examples
-    { $example
-        "USING: arrays kernel prettyprint sequences splitting ;"
-        "9 >array 3 <sliced-groups>"
-        "dup [ reverse-here ] each concat >array ."
-        "{ 2 1 0 5 4 3 8 7 6 }"
-    }
-} ;
-
-HELP: clumps
-{ $class-description "Instances are virtual sequences whose elements are overlapping fixed-length subsequences o an underlying sequence. Clumps are mutable and resizable if the underlying sequence is mutable and resizable, respectively."
-$nl
-"New clumps are created by calling " { $link <clumps> } " and " { $link <sliced-clumps> } "." } ;
-
-HELP: clump
-{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "array" "a sequence of sequences" } }
-{ $description "Splits the sequence into overlapping clumps of " { $snippet "n" } " elements and collects the clumps into a new array." }
-{ $errors "Throws an error if " { $snippet "n" } " is smaller than the length of the sequence." }
-{ $examples
-    { $example "USING: splitting prettyprint ;" "{ 3 1 3 3 7 } 2 clump ." "{ { 3 1 } { 1 3 } { 3 3 } { 3 7 } }" }
-} ;
-
-HELP: <clumps>
-{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "clumps" clumps } }
-{ $description "Outputs a virtual sequence whose elements are overlapping subsequences of " { $snippet "n" } " elements from the underlying sequence." }
-{ $examples
-    "Running averages:"
-    { $example
-        "USING: splitting sequences math prettyprint kernel ;"
-        "IN: scratchpad"
-        ": share-price"
-        "    { 13/50 51/100 13/50 1/10 4/5 17/20 33/50 3/25 19/100 3/100 } ;"
-        ""
-        "share-price 4 <clumps> [ [ sum ] [ length ] bi / ] map ."
-        "{ 113/400 167/400 201/400 241/400 243/400 91/200 1/4 }"
-    }
-} ;
-
-HELP: <sliced-clumps>
-{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "clumps" clumps } }
-{ $description "Outputs a virtual sequence whose elements are overlapping slices of " { $snippet "n" } " elements from the underlying sequence." } ;
-
-{ clumps groups } related-words
-
-{ clump group } related-words
-
-{ <clumps> <groups> } related-words
-
-{ <sliced-clumps> <sliced-groups> } related-words
-
 HELP: ?head
 { $values { "seq" "a sequence" } { "begin" "a sequence" } { "newseq" "a new sequence" } { "?" "a boolean" } }
 { $description "Tests if " { $snippet "seq" } " starts with " { $snippet "begin" } ". If there is a match, outputs the subrange of " { $snippet "seq" } " excluding " { $snippet "begin" } ", and " { $link t } ". If there is no match, outputs " { $snippet "seq" } " and " { $link f } "." } ;
diff --git a/core/splitting/splitting-tests.factor b/core/splitting/splitting-tests.factor
index 34757e6b22..0f3dbdea1b 100644
--- a/core/splitting/splitting-tests.factor
+++ b/core/splitting/splitting-tests.factor
@@ -1,10 +1,6 @@
 USING: splitting tools.test kernel sequences arrays ;
 IN: splitting.tests
 
-[ { 1 2 3 } 0 group ] must-fail
-
-[ { "hell" "o wo" "rld" } ] [ "hello world" 4 group ] unit-test
-
 [ "hello" "world ." ] [ "hello world ." " " split1 ] unit-test
 [ "hello" "world-+." ] [ "hello-+world-+." "-+" split1 ] unit-test
 [ "goodbye" f ] [ "goodbye" " " split1 ] unit-test
@@ -56,9 +52,3 @@ unit-test
 [ { "hello" "hi" } ] [ "hello\nhi" string-lines ] unit-test
 [ { "hello" "hi" } ] [ "hello\rhi" string-lines ] unit-test
 [ { "hello" "hi" } ] [ "hello\r\nhi" string-lines ] unit-test
-
-[ { V{ "a" "b" } V{ f f } } ] [
-    V{ "a" "b" } clone 2 <groups>
-    2 over set-length
-    >array
-] unit-test
diff --git a/core/splitting/splitting.factor b/core/splitting/splitting.factor
index 62e7ef3782..38f5ae0891 100755
--- a/core/splitting/splitting.factor
+++ b/core/splitting/splitting.factor
@@ -4,69 +4,6 @@ USING: kernel math namespaces strings arrays vectors sequences
 sets math.order accessors ;
 IN: splitting
 
-TUPLE: abstract-groups seq n ;
-
-: check-groups dup 0 <= [ "Invalid group count" throw ] when ; inline
-
-: construct-groups ( seq n class -- groups )
-    >r check-groups r> boa ; inline
-
-GENERIC: group@ ( n groups -- from to seq )
-
-M: abstract-groups nth group@ subseq ;
-
-M: abstract-groups set-nth group@ <slice> 0 swap copy ;
-
-M: abstract-groups like drop { } like ;
-
-INSTANCE: abstract-groups sequence
-
-TUPLE: groups < abstract-groups ;
-
-: <groups> ( seq n -- groups )
-    groups construct-groups ; inline
-
-M: groups length
-    [ seq>> length ] [ n>> ] bi [ + 1- ] keep /i ;
-
-M: groups set-length
-    [ n>> * ] [ seq>> ] bi set-length ;
-
-M: groups group@
-    [ n>> [ * dup ] keep + ] [ seq>> ] bi [ length min ] keep ;
-
-TUPLE: sliced-groups < groups ;
-
-: <sliced-groups> ( seq n -- groups )
-    sliced-groups construct-groups ; inline
-
-M: sliced-groups nth group@ <slice> ;
-
-TUPLE: clumps < abstract-groups ;
-
-: <clumps> ( seq n -- clumps )
-    clumps construct-groups ; inline
-
-M: clumps length
-    [ seq>> length ] [ n>> ] bi - 1+ ;
-
-M: clumps set-length
-    [ n>> + 1- ] [ seq>> ] bi set-length ;
-
-M: clumps group@
-    [ n>> over + ] [ seq>> ] bi ;
-
-TUPLE: sliced-clumps < groups ;
-
-: <sliced-clumps> ( seq n -- clumps )
-    sliced-clumps construct-groups ; inline
-
-M: sliced-clumps nth group@ <slice> ;
-
-: group ( seq n -- array ) <groups> { } like ;
-
-: clump ( seq n -- array ) <clumps> { } like ;
-
 : ?head ( seq begin -- newseq ? )
     2dup head? [ length tail t ] [ drop f ] if ;
 
@@ -93,7 +30,7 @@ M: sliced-clumps nth group@ <slice> ;
 : (split) ( separators n seq -- )
     3dup rot [ member? ] curry find-from drop
     [ [ swap subseq , ] 2keep 1+ swap (split) ]
-    [ swap dup zero? [ drop ] [ tail ] if , drop ] if* ; inline
+    [ swap dup zero? [ drop ] [ tail ] if , drop ] if* ; inline recursive
 
 : split, ( seq separators -- ) 0 rot (split) ;
 
diff --git a/core/strings/parser/parser-docs.factor b/core/strings/parser/parser-docs.factor
new file mode 100644
index 0000000000..e1c53cd87a
--- /dev/null
+++ b/core/strings/parser/parser-docs.factor
@@ -0,0 +1,16 @@
+USING: help.markup help.syntax strings lexer ;
+IN: strings.parser
+
+HELP: bad-escape
+{ $error-description "Indicates the parser encountered an invalid escape code following a backslash (" { $snippet "\\" } ") in a string literal. See " { $link "escape" } " for a list of valid escape codes." } ;
+
+HELP: escape
+{ $values { "escape" "a single-character escape" } { "ch" "a character" } }
+{ $description "Converts from a single-character escape code and the corresponding character." }
+{ $examples { $example "USING: kernel prettyprint strings.parser ;" "CHAR: n escape CHAR: \\n = ." "t" } } ;
+
+HELP: parse-string
+{ $values { "str" "a new " { $link string } } }
+{ $description "Parses the line until a quote (\"), interpreting escape codes along the way." }
+{ $errors "Throws an error if the string contains an invalid escape sequence." }
+$parsing-note ;
diff --git a/core/strings/parser/parser.factor b/core/strings/parser/parser.factor
new file mode 100644
index 0000000000..8d95254539
--- /dev/null
+++ b/core/strings/parser/parser.factor
@@ -0,0 +1,60 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel assocs namespaces splitting sequences
+strings math.parser lexer accessors ;
+IN: strings.parser
+
+ERROR: bad-escape ;
+
+: escape ( escape -- ch )
+    H{
+        { CHAR: a  CHAR: \a }
+        { CHAR: e  CHAR: \e }
+        { CHAR: n  CHAR: \n }
+        { CHAR: r  CHAR: \r }
+        { CHAR: t  CHAR: \t }
+        { CHAR: s  CHAR: \s }
+        { CHAR: \s CHAR: \s }
+        { CHAR: 0  CHAR: \0 }
+        { CHAR: \\ CHAR: \\ }
+        { CHAR: \" CHAR: \" }
+    } at [ bad-escape ] unless* ;
+
+SYMBOL: name>char-hook
+
+name>char-hook global [
+    [ "Unicode support not available" throw ] or
+] change-at
+
+: unicode-escape ( str -- ch str' )
+    "{" ?head-slice [
+        CHAR: } over index cut-slice
+        >r >string name>char-hook get call r>
+        rest-slice
+    ] [
+        6 cut-slice >r hex> r>
+    ] if ;
+
+: next-escape ( str -- ch str' )
+    "u" ?head-slice [
+        unicode-escape
+    ] [
+        unclip-slice escape swap
+    ] if ;
+
+: (parse-string) ( str -- m )
+    dup [ "\"\\" member? ] find dup [
+        >r cut-slice >r % r> rest-slice r>
+        dup CHAR: " = [
+            drop from>>
+        ] [
+            drop next-escape >r , r> (parse-string)
+        ] if
+    ] [
+        "Unterminated string" throw
+    ] if ;
+
+: parse-string ( -- str )
+    lexer get [
+        [ swap tail-slice (parse-string) ] "" make swap
+    ] change-lexer-column ;
diff --git a/core/strings/strings-docs.factor b/core/strings/strings-docs.factor
index d8cef5557a..8d2a9080d4 100755
--- a/core/strings/strings-docs.factor
+++ b/core/strings/strings-docs.factor
@@ -1,4 +1,4 @@
-USING: arrays byte-arrays bit-arrays help.markup help.syntax
+USING: arrays byte-arrays help.markup help.syntax
 kernel kernel.private strings.private sequences vectors
 sbufs math ;
 IN: strings
diff --git a/core/strings/strings-tests.factor b/core/strings/strings-tests.factor
index 44e1d8859f..d10f1603f1 100755
--- a/core/strings/strings-tests.factor
+++ b/core/strings/strings-tests.factor
@@ -98,7 +98,7 @@ unit-test
 [ ] [
     [
         4 [
-            100 [ drop "obdurak" clone ] map
+            100 [ "obdurak" clone ] replicate
             gc
             dup [
                 1234 0 rot set-string-nth
diff --git a/core/strings/strings.factor b/core/strings/strings.factor
index 1484737277..8ff5a7caf4 100755
--- a/core/strings/strings.factor
+++ b/core/strings/strings.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2003, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math.private sequences kernel.private
+USING: accessors kernel math.private sequences kernel.private
 math sequences.private slots.private byte-arrays
 alien.accessors ;
 IN: strings
@@ -30,6 +30,9 @@ M: string hashcode*
     nip dup string-hashcode [ ]
     [ dup rehash-string string-hashcode ] ?if ;
 
+M: string length
+    length>> ;
+
 M: string nth-unsafe
     >r >fixnum r> string-nth ;
 
@@ -38,7 +41,7 @@ M: string set-nth-unsafe
     >r >fixnum >r >fixnum r> r> set-string-nth ;
 
 M: string clone
-    (clone) dup string-aux clone over set-string-aux ;
+    (clone) [ clone ] change-aux ;
 
 M: string resize resize-string ;
 
diff --git a/core/syntax/syntax-docs.factor b/core/syntax/syntax-docs.factor
index 0dc834ad6b..cd76967e5a 100755
--- a/core/syntax/syntax-docs.factor
+++ b/core/syntax/syntax-docs.factor
@@ -138,14 +138,6 @@ ARTICLE: "syntax-quots" "Quotation syntax"
 { $subsection POSTPONE: ] }
 "Quotations are documented in " { $link "quotations" } "." ;
 
-ARTICLE: "syntax-bit-arrays" "Bit array syntax"
-{ $subsection POSTPONE: ?{ }
-"Bit arrays are documented in " { $link "bit-arrays" } "." ;
-
-ARTICLE: "syntax-float-arrays" "Float array syntax"
-{ $subsection POSTPONE: F{ }
-"Float arrays are documented in " { $link "float-arrays" } "." ;
-
 ARTICLE: "syntax-byte-arrays" "Byte array syntax"
 { $subsection POSTPONE: B{ }
 "Byte arrays are documented in " { $link "byte-arrays" } "." ;
@@ -165,9 +157,7 @@ $nl
 { $subsection "syntax-quots" }
 { $subsection "syntax-arrays" }
 { $subsection "syntax-strings" }
-{ $subsection "syntax-bit-arrays" }
 { $subsection "syntax-byte-arrays" }
-{ $subsection "syntax-float-arrays" }
 { $subsection "syntax-vectors" }
 { $subsection "syntax-sbufs" }
 { $subsection "syntax-hashtables" }
@@ -202,6 +192,11 @@ HELP: inline
     "The non-optimizing quotation compiler ignores inlining declarations."
 } ;
 
+HELP: recursive
+{ $syntax ": foo ... ; recursive" }
+{ $description "Declares the most recently defined word as a recursive word." }
+{ $notes "This declaration is only required for " { $link POSTPONE: inline } " words which call themselves. See " { $link "inference-recursive-combinators" } "." } ;
+
 HELP: foldable
 { $syntax ": foo ... ; foldable" }
 { $description
@@ -276,18 +271,6 @@ HELP: B{
 { $description "Marks the beginning of a literal byte array. Literal byte arrays are terminated by " { $link POSTPONE: } } "." } 
 { $examples { $code "B{ 1 2 3 }" } } ;
 
-HELP: ?{
-{ $syntax "?{ elements... }" }
-{ $values { "elements" "a list of booleans" } }
-{ $description "Marks the beginning of a literal bit array. Literal bit arrays are terminated by " { $link POSTPONE: } } "." } 
-{ $examples { $code "?{ t f t }" } } ;
-
-HELP: F{
-{ $syntax "F{ elements... }" }
-{ $values { "elements" "a list of real numbers" } }
-{ $description "Marks the beginning of a literal float array. Literal float arrays are terminated by " { $link POSTPONE: } } "." } 
-{ $examples { $code "F{ 1.0 2.0 3.0 }" } } ;
-
 HELP: H{
 { $syntax "H{ { key value }... }" }
 { $values { "key" "an object" } { "value" "an object" } }
@@ -301,10 +284,31 @@ HELP: C{
 
 HELP: T{
 { $syntax "T{ class slots... }" }
-{ $values { "class" "a tuple class word" } { "slots" "list of objects" } }
-{ $description "Marks the beginning of a literal tuple. Literal tuples are terminated by " { $link POSTPONE: } } "."
+{ $values { "class" "a tuple class word" } { "slots" "slot values" } }
+{ $description "Marks the beginning of a literal tuple."
 $nl
-"The class word must always be specified. If an insufficient number of values is given after the class word, the remaining slots of the tuple are set to " { $link f } ". If too many values are given, they are ignored." } ;
+"Three literal syntax forms are recognized:"
+{ $list
+    { "empty tuple form: if no slot values are specified, then the literal tuple will have all slots set to their initial values (see " { $link "slot-initial-values" } ")." }
+    { "BOA-form: if the first element of " { $snippet "slots" } " is " { $snippet "f" } ", then the remaining elements are slot values corresponding to slots in the order in which they are defined in the " { $link POSTPONE: TUPLE: } " form." }
+    { "assoc-form: otherwise, " { $snippet "slots" } " is interpreted as a sequence of " { $snippet "{ slot-name value }" } " pairs. The " { $snippet "slot-name" } " should not be quoted." }
+}
+"BOA form is more concise, whereas assoc form is more readable for larger tuples with many slots, or if only a few slots are to be specified."
+$nl
+"With BOA form, specifying an insufficient number of values is given after the class word, the remaining slots of the tuple are set to their initial values (see " { $link "slot-initial-values" } "). If too many values are given, an error will be raised." }
+{ $examples
+"An empty tuple; since vectors have their own literal syntax, the above is equivalent to " { $snippet "V{ }" } ""
+{ $code "T{ vector }" }
+"A BOA-form tuple:"
+{ $code
+    "USE: colors"
+    "T{ rgba f 1.0 0.0 0.5 }"
+}
+"An assoc-form tuple equal to the above:"
+{ $code
+    "USE: colors"
+    "T{ rgba { red 1.0 } { green 0.0 } { blue 0.5 } }"
+} } ;
 
 HELP: W{
 { $syntax "W{ object }" }
@@ -319,9 +323,9 @@ HELP: POSTPONE:
 { $notes "This word is used inside parsing words to delegate further action to another parsing word, and to refer to parsing words literally from literal arrays and such." } ;
 
 HELP: :
-{ $syntax ": word definition... ;" }
+{ $syntax ": word ( stack -- effect ) definition... ;" }
 { $values { "word" "a new word to define" } { "definition" "a word definition" } }
-{ $description "Defines a word in the current vocabulary." }
+{ $description "Defines a word with the given stack effect in the current vocabulary. The stack effect is optional for words which only push literals on the stack." }
 { $examples { $code ": ask-name ( -- name )\n    \"What is your name? \" write readln ;\n: greet ( name -- )\n    \"Greetings, \" write print ;\n: friend ( -- )\n    ask-name greet ;" } } ;
 
 { POSTPONE: : POSTPONE: ; define } related-words
@@ -346,7 +350,7 @@ HELP: \
 { $syntax "\\ word" }
 { $values { "word" "a word" } }
 { $description "Reads the next word from the input and appends a wrapper holding the word to the parse tree. When the evaluator encounters a wrapper, it pushes the wrapped word literally on the data stack." }
-{ $examples "The following two lines are equivalent:" { $code "0 \\ <vector> execute\n0 <vector>" } } ;
+{ $examples "The following two lines are equivalent:" { $code "0 \\ <vector> execute\n0 <vector>" } "If " { $snippet "foo" } " is a symbol, the following two lines are equivalent:" { $code "foo" "\\ foo" } } ;
 
 HELP: DEFER:
 { $syntax "DEFER: word" }
@@ -407,13 +411,27 @@ HELP: P"
 { $syntax "P\" pathname\"" }
 { $values { "pathname" "a pathname string" } }
 { $description "Reads from the input string until the next occurrence of " { $link POSTPONE: " } ", creates a new " { $link pathname } ", and appends it to the parse tree." }
-{ $examples { $example "USING: io io.files ;" "P\" foo.txt\" pathname-string print" "foo.txt" } } ;
+{ $examples { $example "USING: accessors io io.files ;" "P\" foo.txt\" string>> print" "foo.txt" } } ;
 
 HELP: (
 { $syntax "( inputs -- outputs )" }
 { $values { "inputs" "a list of tokens" } { "outputs" "a list of tokens" } }
 { $description "Declares the stack effect of the most recently defined word, storing a new " { $link effect } " instance in the " { $snippet "\"declared-effect\"" } " word property." }
-{ $notes "Recursive words must have a declared stack effect to compile. See " { $link "effect-declaration" } " for details." } ;
+{ $notes "All words except those only pushing literals on the stack must have a stack effect declaration. See " { $link "effect-declaration" } " for details." } ;
+
+HELP: ((
+{ $syntax "(( inputs -- outputs ))" }
+{ $values { "inputs" "a list of tokens" } { "outputs" "a list of tokens" } }
+{ $description "Literal stack effect syntax." }
+{ $notes "Useful for meta-programming with " { $link define-declared } "." }
+{ $examples
+    { $code
+        "SYMBOL: my-dynamic-word"
+        "USING: math random words ;"
+        "3 { [ + ] [ - ] [ * ] [ / ] } random curry"
+        "(( x -- y )) define-declared"
+    }
+} ;
 
 HELP: !
 { $syntax "! comment..." }
@@ -526,12 +544,50 @@ HELP: PREDICATE:
         "it satisfies the predicate"
     }
     "Each predicate must be defined as a subclass of some other class. This ensures that predicates inheriting from disjoint classes do not need to be exhaustively tested during method dispatch."
+}
+{ $examples
+    { $code "USING: math ;" "PREDICATE: positive < integer 0 > ;" }
 } ;
 
 HELP: TUPLE:
 { $syntax "TUPLE: class slots... ;" "TUPLE: class < superclass slots ... ;" }
-{ $values { "class" "a new tuple class to define" } { "slots" "a list of slot names" } }
-{ $description "Defines a new tuple class. The superclass is optional; if left unspecified, it defaults to " { $link tuple } "." } ;
+{ $values { "class" "a new tuple class to define" } { "slots" "a list of slot specifiers" } }
+{ $description "Defines a new tuple class."
+$nl
+"The superclass is optional; if left unspecified, it defaults to " { $link tuple } "."
+$nl
+"Slot specifiers take one of the following three forms:"
+{ $list
+    { { $snippet "name" } " - a slot which can hold any object, with no attributes" }
+    { { $snippet "{ name attributes... }" } " - a slot which can hold any object, with optional attributes" }
+    { { $snippet "{ name class attributes... }" } " - a slot specialized to a specific class, with optional attributes" }
+}
+"Slot attributes are lists of slot attribute specifiers followed by values; a slot attribute specifier is one of " { $link initial: } " or " { $link read-only } ". See " { $link "tuple-declarations" } " for details." }
+{ $examples
+    "A simple tuple class:"
+    { $code "TUPLE: color red green blue ;" }
+    "Declaring slots to be integer-valued:"
+    { $code "TUPLE: color" "{ red integer }" "{ green integer }" "{ blue integer } ;" }
+    "An example mixing short and long slot specifiers:"
+    { $code "TUPLE: person" "{ age integer initial: 0 }" "{ department string initial: \"Marketing\" }" "manager ;" }
+} ;
+
+HELP: initial:
+{ $syntax "TUPLE: ... { \"slot\" initial: value } ... ;" }
+{ $values { "slot" "a slot name" } { "value" "any literal" } }
+{ $description "Specifies an initial value for a tuple slot." } ;
+
+HELP: read-only
+{ $syntax "TUPLE: ... { \"slot\" read-only } ... ;" }
+{ $values { "slot" "a slot name" } }
+{ $description "Defines a tuple slot to be read-only. If a tuple has read-only slots, instances of the tuple should only be created by calling " { $link boa } ", instead of " { $link new } ". Using " { $link boa } " is the only way to set the value of a read-only slot." } ;
+
+{ initial: read-only } related-words
+
+HELP: SLOT:
+{ $syntax "SLOT: name" }
+{ $values { "name" "a slot name" } }
+{ $description "Defines a protocol slot; that is, defines the accessor words for a slot named " { $snippet "slot" } " without associating it with any specific tuple." } ;
 
 HELP: ERROR:
 { $syntax "ERROR: class slots... ;" }
diff --git a/core/syntax/syntax.factor b/core/syntax/syntax.factor
index 27c8609a99..105bdc325f 100755
--- a/core/syntax/syntax.factor
+++ b/core/syntax/syntax.factor
@@ -1,13 +1,14 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien arrays bit-arrays byte-arrays byte-vectors
-definitions generic hashtables kernel math
-namespaces parser sequences strings sbufs vectors words
-quotations io assocs splitting classes.tuple generic.standard
-generic.math classes io.files vocabs float-arrays
-classes.union classes.intersection classes.mixin
-classes.predicate classes.singleton compiler.units
-combinators debugger ;
+USING: accessors alien arrays byte-arrays byte-vectors
+definitions generic hashtables kernel math namespaces parser
+lexer sequences strings strings.parser sbufs vectors
+words quotations io assocs splitting classes.tuple
+generic.standard generic.math generic.parser classes io.files
+vocabs classes.parser classes.union
+classes.intersection classes.mixin classes.predicate
+classes.singleton classes.tuple.parser compiler.units
+combinators effects.parser slots ;
 IN: bootstrap.syntax
 
 ! These words are defined as a top-level form, instead of with
@@ -81,15 +82,14 @@ IN: bootstrap.syntax
     "V{" [ \ } [ >vector ] parse-literal ] define-syntax
     "B{" [ \ } [ >byte-array ] parse-literal ] define-syntax
     "BV{" [ \ } [ >byte-vector ] parse-literal ] define-syntax
-    "?{" [ \ } [ >bit-array ] parse-literal ] define-syntax
-    "F{" [ \ } [ >float-array ] parse-literal ] define-syntax
     "H{" [ \ } [ >hashtable ] parse-literal ] define-syntax
-    "T{" [ \ } [ >tuple ] parse-literal ] define-syntax
+    "T{" [ parse-tuple-literal parsed ] define-syntax
     "W{" [ \ } [ first <wrapper> ] parse-literal ] define-syntax
 
     "POSTPONE:" [ scan-word parsed ] define-syntax
     "\\" [ scan-word literalize parsed ] define-syntax
     "inline" [ word make-inline ] define-syntax
+    "recursive" [ word make-recursive ] define-syntax
     "foldable" [ word make-foldable ] define-syntax
     "flushable" [ word make-flushable ] define-syntax
     "delimiter" [ word t "delimiter" set-word-prop ] define-syntax
@@ -165,10 +165,13 @@ IN: bootstrap.syntax
         parse-tuple-definition define-tuple-class
     ] define-syntax
 
+    "SLOT:" [
+        scan define-protocol-slot
+    ] define-syntax
+
     "C:" [
         CREATE-WORD
-        scan-word dup check-tuple
-        [ boa ] curry define-inline
+        scan-word [ boa ] curry define-inline
     ] define-syntax
 
     "ERROR:" [
@@ -182,11 +185,15 @@ IN: bootstrap.syntax
     ] define-syntax
 
     "(" [
-        parse-effect word
-        [ swap "declared-effect" set-word-prop ] [ drop ] if*
+        ")" parse-effect
+        word dup [ set-stack-effect ] [ 2drop ] if
     ] define-syntax
 
-    "MAIN:" [ scan-word in get vocab set-vocab-main ] define-syntax
+    "((" [
+        "))" parse-effect parsed
+    ] define-syntax
+
+    "MAIN:" [ scan-word in get vocab (>>main) ] define-syntax
 
     "<<" [
         [
@@ -203,4 +210,8 @@ IN: bootstrap.syntax
             not-in-a-method-error
         ] if
     ] define-syntax
+    
+    "initial:" "syntax" lookup define-symbol
+    
+    "read-only" "syntax" lookup define-symbol
 ] with-compilation-unit
diff --git a/core/system/system-docs.factor b/core/system/system-docs.factor
index 5aac0a8e8c..49886492ec 100755
--- a/core/system/system-docs.factor
+++ b/core/system/system-docs.factor
@@ -14,8 +14,7 @@ ARTICLE: "system" "System interface"
 "Getting the current time:"
 { $subsection millis }
 "Exiting the Factor VM:"
-{ $subsection exit }
-{ $see-also "io.files" "io.mmap" "io.monitors" "network-streams" "io.launcher" } ;
+{ $subsection exit } ;
 
 ARTICLE: "environment-variables" "Environment variables"
 "Reading environment variables:"
diff --git a/core/vectors/vectors-docs.factor b/core/vectors/vectors-docs.factor
index b130dc4a71..2af1300498 100755
--- a/core/vectors/vectors-docs.factor
+++ b/core/vectors/vectors-docs.factor
@@ -1,4 +1,4 @@
-USING: arrays byte-arrays bit-arrays help.markup
+USING: arrays byte-arrays help.markup
 help.syntax kernel sbufs strings quotations sequences.private
 vectors.private combinators ;
 IN: vectors
@@ -30,11 +30,6 @@ HELP: >vector
 { $values { "seq" "a sequence" } { "vector" vector } }
 { $description "Outputs a freshly-allocated vector with the same elements as a given sequence." } ;
 
-HELP: array>vector
-{ $values { "array" "an array" } { "length" "a non-negative integer" } { "vector" vector } }
-{ $description "Creates a new vector using the array for underlying storage with the specified initial length." }
-{ $warning "This word is in the " { $vocab-link "vectors.private" } " vocabulary because it does not perform type or bounds checks. User code should call " { $link >vector } " instead." } ;
-
 HELP: 1vector
 { $values { "x" object } { "vector" vector } }
 { $description "Create a new vector with one element." } ;
diff --git a/core/vectors/vectors-tests.factor b/core/vectors/vectors-tests.factor
index 8f64265771..4f9bba3483 100755
--- a/core/vectors/vectors-tests.factor
+++ b/core/vectors/vectors-tests.factor
@@ -1,4 +1,4 @@
-USING: arrays kernel kernel.private math namespaces
+USING: accessors arrays kernel kernel.private math namespaces
 sequences sequences.private strings tools.test vectors
 continuations random growable classes ;
 IN: vectors.tests
@@ -26,7 +26,7 @@ IN: vectors.tests
 [ V{ 1 2 } ] [ [ 1 2 ] >vector ] unit-test
 
 [ t ] [
-    100 [ drop 100 random ] map >vector
+    100 [ 100 random ] V{ } replicate-as
     dup >array >vector =
 ] unit-test
 
@@ -70,14 +70,14 @@ IN: vectors.tests
 [ "funky" ] [ "funny-stack" get pop ] unit-test
 
 [ t ] [
-    V{ 1 2 3 4 } dup underlying length
-    >r clone underlying length r>
+    V{ 1 2 3 4 } dup underlying>> length
+    >r clone underlying>> length r>
     =
 ] unit-test
 
 [ f ] [
     V{ 1 2 3 4 } dup clone
-    [ underlying ] bi@ eq?
+    [ underlying>> ] bi@ eq?
 ] unit-test
 
 [ 0 ] [
diff --git a/core/vectors/vectors.factor b/core/vectors/vectors.factor
index 4a6b41f863..dab30f306f 100755
--- a/core/vectors/vectors.factor
+++ b/core/vectors/vectors.factor
@@ -3,23 +3,21 @@
 USING: arrays kernel math sequences sequences.private growable ;
 IN: vectors
 
-<PRIVATE
+TUPLE: vector
+{ underlying array }
+{ length array-capacity } ;
 
-: array>vector ( array length -- vector )
-    vector boa ; inline
-
-PRIVATE>
-
-: <vector> ( n -- vector ) f <array> 0 array>vector ; inline
+: <vector> ( n -- vector ) f <array> 0 vector boa ; inline
 
 : >vector ( seq -- vector ) V{ } clone-like ;
 
 M: vector like
     drop dup vector? [
-        dup array? [ dup length array>vector ] [ >vector ] if
+        dup array? [ dup length vector boa ] [ >vector ] if
     ] unless ;
 
-M: vector new-sequence drop [ f <array> ] keep >fixnum array>vector ;
+M: vector new-sequence
+    drop [ f <array> ] [ >fixnum ] bi vector boa ;
 
 M: vector equal?
     over vector? [ sequence= ] [ 2drop f ] if ;
diff --git a/core/vocabs/loader/loader-docs.factor b/core/vocabs/loader/loader-docs.factor
index c0542f7b96..ebaf8b3c8f 100755
--- a/core/vocabs/loader/loader-docs.factor
+++ b/core/vocabs/loader/loader-docs.factor
@@ -1,12 +1,29 @@
 USING: vocabs help.markup help.syntax words strings io ;
 IN: vocabs.loader
 
+ARTICLE: "vocabs.roots" "Vocabulary roots"
+"The vocabulary loader searches for it in one of the root directories:"
+{ $subsection vocab-roots }
+"The default set of roots includes the following directories in the Factor source directory:"
+{ $list
+    { { $snippet "core" } " - essential system vocabularies such as " { $vocab-link "parser" } " and " { $vocab-link "sequences" } ". The vocabularies in this root constitute the boot image; see " { $link "bootstrap.image" } "." }
+    { { $snippet "basis" } " - useful libraries and tools, such as " { $vocab-link "compiler" } ", " { $vocab-link "ui" } ", " { $vocab-link "calendar" } ", and so on." }
+    { { $snippet "extra" } " - additional contributed libraries." }
+    { { $snippet "work" } " - a root for vocabularies which are not intended to be contributed back to Factor." }
+}
+"Your own vocabularies should go into " { $snippet "extra" } " or " { $snippet "work" } ", depending on whether or not you intend to contribute them back to the Factor project. If you wish to work on vocabularies outside of the Factor source directory, create a " { $snippet "~/.factor-rc" } " file like the following,"
+{ $code
+    "USING: namespaces sequences vocabs.loader ;"
+    "\"/home/jane/sources/\" vocab-roots get push"
+}
+"See " { $link "rc-files" } " for details." ;
+
 ARTICLE: "vocabs.loader" "Vocabulary loader"
 "The vocabulary loader is defined in the " { $vocab-link "vocabs.loader" } " vocabulary."
 $nl
-"Vocabulary names map directly to source files. When a vocabulary which has not been loaded is accessed, the vocabulary loader searches for it in one of the root directories:"
-{ $subsection vocab-roots }
-"A vocabulary named " { $snippet "foo.bar" } " must be defined in a " { $snippet "bar" } " directory nested inside a " { $snippet "foo" } " directory at the vocabulary root. Any level of vocabulary nesting is permitted."
+"Vocabularies are searched for in vocabulary roots."
+{ $subsection "vocabs.roots" }
+"Vocabulary names map directly to source files. A vocabulary named " { $snippet "foo.bar" } " must be defined in a " { $snippet "bar" } " directory nested inside a " { $snippet "foo" } " directory of a vocabulary root. Any level of vocabulary nesting is permitted."
 $nl
 "The vocabulary directory - " { $snippet "bar" } " in our example - can contain the following files; the first is required while the rest are optional:"
 { $list
@@ -33,7 +50,7 @@ HELP: load-vocab
 { $error-description "Thrown by " { $link POSTPONE: USE: } " and " { $link POSTPONE: USING: } " when a given vocabulary does not exist. Vocabularies must be created by " { $link POSTPONE: IN: } " before being used." } ;
 
 HELP: vocab-main
-{ $values { "vocab" "a vocabulary specifier" } { "main" word } }
+{ $values { "vocab-spec" "a vocabulary specifier" } { "main" word } }
 { $description "Outputs the main entry point for a vocabulary. The entry point can be executed with " { $link run } " and set with " { $link POSTPONE: MAIN: } "." } ;
 
 HELP: vocab-roots
diff --git a/core/vocabs/loader/loader-tests.factor b/core/vocabs/loader/loader-tests.factor
index 45b0d6b019..5ba7f7ed88 100755
--- a/core/vocabs/loader/loader-tests.factor
+++ b/core/vocabs/loader/loader-tests.factor
@@ -3,7 +3,7 @@ IN: vocabs.loader.tests
 USING: vocabs.loader tools.test continuations vocabs math
 kernel arrays sequences namespaces io.streams.string
 parser source-files words assocs classes.tuple definitions
-debugger compiler.units tools.vocabs accessors ;
+debugger compiler.units tools.vocabs accessors eval ;
 
 ! This vocab should not exist, but just in case...
 [ ] [
@@ -55,7 +55,7 @@ IN: vocabs.loader.tests
     
     [ t ] [
         "resource:core/vocabs/loader/test/a/a.factor"
-        source-file source-file-definitions dup USE: prettyprint .
+        source-file definitions>> dup USE: prettyprint .
         "v-l-t-a-hello" "vocabs.loader.test.a" lookup dup .
         swap first key?
     ] unit-test
@@ -68,7 +68,7 @@ IN: vocabs.loader.tests
     <string-reader>
     "resource:core/vocabs/loader/test/a/a.factor"
     parse-stream
-] [ error>> error>> no-word-error? ] must-fail-with
+] [ error>> error>> error>> no-word-error? ] must-fail-with
 
 0 "count-me" set-global
 
diff --git a/core/vocabs/loader/loader.factor b/core/vocabs/loader/loader.factor
index 1489750154..4677a7b5d7 100755
--- a/core/vocabs/loader/loader.factor
+++ b/core/vocabs/loader/loader.factor
@@ -1,16 +1,16 @@
 ! Copyright (C) 2007, 2008 Eduardo Cavazos, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: namespaces sequences io.files kernel assocs words vocabs
-definitions parser continuations inspector debugger io io.styles
-hashtables sorting prettyprint source-files
-arrays combinators strings system math.parser compiler.errors
-splitting init ;
+definitions parser continuations io hashtables sorting
+source-files arrays combinators strings system math.parser
+compiler.errors splitting init accessors ;
 IN: vocabs.loader
 
 SYMBOL: vocab-roots
 
 V{
     "resource:core"
+    "resource:basis"
     "resource:extra"
     "resource:work"
 } clone vocab-roots set-global
@@ -34,10 +34,11 @@ SYMBOL: root-cache
 
 H{ } clone root-cache set-global
 
+: (find-vocab-root) ( name -- path/f )
+    vocab-roots get swap [ vocab-dir? ] curry find nip ;
+
 : find-vocab-root ( vocab -- path/f )
-    vocab-name root-cache get [
-        vocab-roots get swap [ vocab-dir? ] curry find nip
-    ] cache ;
+    vocab-name dup root-cache get at [ ] [ (find-vocab-root) ] ?if ;
 
 : vocab-append-path ( vocab path -- newpath )
     swap find-vocab-root dup [ prepend-path ] [ 2drop f ] if ;
@@ -50,29 +51,22 @@ H{ } clone root-cache set-global
 
 SYMBOL: load-help?
 
-: source-was-loaded t swap set-vocab-source-loaded? ;
+: load-source ( vocab -- vocab )
+    f over set-vocab-source-loaded?
+    [ vocab-source-path [ parse-file ] [ [ ] ] if* ] keep
+    t over set-vocab-source-loaded?
+    [ [ % ] [ call ] if-bootstrapping ] dip ;
 
-: source-wasn't-loaded f swap set-vocab-source-loaded? ;
-
-: load-source ( vocab -- )
-    [ source-wasn't-loaded ] keep
-    [ vocab-source-path [ bootstrap-file ] when* ] keep
-    source-was-loaded ;
-
-: docs-were-loaded t swap set-vocab-docs-loaded? ;
-
-: docs-weren't-loaded f swap set-vocab-docs-loaded? ;
-
-: load-docs ( vocab -- )
+: load-docs ( vocab -- vocab )
     load-help? get [
-        [ docs-weren't-loaded ] keep
+        f over set-vocab-docs-loaded?
         [ vocab-docs-path [ ?run-file ] when* ] keep
-        docs-were-loaded
-    ] [ drop ] if ;
+        t over set-vocab-docs-loaded?
+    ] when ;
 
 : reload ( name -- )
     [
-        dup vocab [ dup load-source load-docs ] [ no-vocab ] ?if
+        dup vocab [ load-source load-docs drop ] [ no-vocab ] ?if
     ] with-compiler-errors ;
 
 : require ( vocab -- )
@@ -96,8 +90,8 @@ GENERIC: (load-vocab) ( name -- )
 
 M: vocab (load-vocab)
     [
-        dup vocab-source-loaded? [ dup load-source ] unless
-        dup vocab-docs-loaded? [ dup load-docs ] unless
+        dup vocab-source-loaded? [ load-source ] unless
+        dup vocab-docs-loaded? [ load-docs ] unless
         drop
     ] [ [ swap add-to-blacklist ] keep rethrow ] recover ;
 
diff --git a/core/vocabs/loader/test/a/tags.txt b/core/vocabs/loader/test/a/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/core/vocabs/loader/test/a/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/vocabs/loader/test/b/tags.txt b/core/vocabs/loader/test/b/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/core/vocabs/loader/test/b/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/vocabs/loader/test/c/tags.txt b/core/vocabs/loader/test/c/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/core/vocabs/loader/test/c/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/vocabs/loader/test/d/tags.txt b/core/vocabs/loader/test/d/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/core/vocabs/loader/test/d/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/core/vocabs/vocabs-docs.factor b/core/vocabs/vocabs-docs.factor
index 0d55499620..328dce9b03 100755
--- a/core/vocabs/vocabs-docs.factor
+++ b/core/vocabs/vocabs-docs.factor
@@ -46,19 +46,19 @@ HELP: vocab
 { $class-description "Instances represent vocabularies." } ;
 
 HELP: vocab-name
-{ $values { "vocab" "a vocabulary specifier" } { "name" string } }
+{ $values { "vocab-spec" "a vocabulary specifier" } { "name" string } }
 { $description "Outputs the name of a vocabulary." } ;
 
 HELP: vocab-words
-{ $values { "vocab" "a vocabulary specifier" } { "words" "an assoc mapping strings to words" } }
+{ $values { "vocab-spec" "a vocabulary specifier" } { "words" "an assoc mapping strings to words" } }
 { $description "Outputs the words defined in a vocabulary." } ;
 
 HELP: vocab-source-loaded?
-{ $values { "vocab" "a vocabulary specifier" } { "source-loaded?" "a boolean" } }
+{ $values { "vocab-spec" "a vocabulary specifier" } { "?" "a boolean" } }
 { $description "Outputs if the source for this vocubulary has been loaded." } ;
 
 HELP: vocab-docs-loaded?
-{ $values { "vocab" "a vocabulary specifier" } { "docs-loaded?" "a boolean" } }
+{ $values { "vocab-spec" "a vocabulary specifier" } { "?" "a boolean" } }
 { $description "Outputs if the documentation for this vocubulary has been loaded." } ;
 
 HELP: words
diff --git a/core/vocabs/vocabs.factor b/core/vocabs/vocabs.factor
index 57951e8642..1bdbe3ce14 100755
--- a/core/vocabs/vocabs.factor
+++ b/core/vocabs/vocabs.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007, 2008 Eduardo Cavazos, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: assocs strings kernel sorting namespaces sequences
-definitions ;
+USING: accessors assocs strings kernel sorting namespaces
+sequences definitions ;
 IN: vocabs
 
 SYMBOL: dictionary
@@ -12,9 +12,11 @@ main help
 source-loaded? docs-loaded? ;
 
 : <vocab> ( name -- vocab )
-    H{ } clone
-    { set-vocab-name set-vocab-words }
-    \ vocab construct ;
+    \ vocab new
+        swap >>name
+        H{ } clone >>words ;
+
+GENERIC: vocab-name ( vocab-spec -- name )
 
 GENERIC: vocab ( vocab-spec -- vocab )
 
@@ -22,38 +24,70 @@ M: vocab vocab ;
 
 M: object vocab ( name -- vocab ) vocab-name dictionary get at ;
 
+M: vocab vocab-name name>> ;
+
 M: string vocab-name ;
 
+GENERIC: vocab-words ( vocab-spec -- words )
+
+M: vocab vocab-words words>> ;
+
 M: object vocab-words vocab vocab-words ;
 
+M: f vocab-words ;
+
+GENERIC: vocab-help ( vocab-spec -- help )
+
+M: vocab vocab-help help>> ;
+
 M: object vocab-help vocab vocab-help ;
 
+M: f vocab-help ;
+
+GENERIC: vocab-main ( vocab-spec -- main )
+
+M: vocab vocab-main main>> ;
+
 M: object vocab-main vocab vocab-main ;
 
+M: f vocab-main ;
+
+GENERIC: vocab-source-loaded? ( vocab-spec -- ? )
+
+M: vocab vocab-source-loaded? source-loaded?>> ;
+
 M: object vocab-source-loaded?
     vocab vocab-source-loaded? ;
 
+M: f vocab-source-loaded? ;
+
+GENERIC: set-vocab-source-loaded? ( ? vocab-spec -- )
+
+M: vocab set-vocab-source-loaded? (>>source-loaded?) ;
+
 M: object set-vocab-source-loaded?
     vocab set-vocab-source-loaded? ;
 
+M: f set-vocab-source-loaded? 2drop ;
+
+GENERIC: vocab-docs-loaded? ( vocab-spec -- ? )
+
+M: vocab vocab-docs-loaded? docs-loaded?>> ;
+
 M: object vocab-docs-loaded?
     vocab vocab-docs-loaded? ;
 
+M: f vocab-docs-loaded? ;
+
+GENERIC: set-vocab-docs-loaded? ( ? vocab-spec -- )
+
+M: vocab set-vocab-docs-loaded? (>>docs-loaded?) ;
+
 M: object set-vocab-docs-loaded?
     vocab set-vocab-docs-loaded? ;
 
-M: f vocab-words ;
-
-M: f vocab-source-loaded? ;
-
-M: f set-vocab-source-loaded? 2drop ;
-
-M: f vocab-docs-loaded? ;
-
 M: f set-vocab-docs-loaded? 2drop ;
 
-M: f vocab-help ;
-
 : create-vocab ( name -- vocab )
     dictionary get [ <vocab> ] cache ;
 
@@ -90,10 +124,9 @@ TUPLE: vocab-link name ;
 : <vocab-link> ( name -- vocab-link )
     vocab-link boa ;
 
-M: vocab-link hashcode*
-    vocab-link-name hashcode* ;
+M: vocab-link hashcode* name>> hashcode* ;
 
-M: vocab-link vocab-name vocab-link-name ;
+M: vocab-link vocab-name name>> ;
 
 UNION: vocab-spec vocab vocab-link ;
 
diff --git a/core/words/words-docs.factor b/core/words/words-docs.factor
index 14e6197683..324f8e755f 100755
--- a/core/words/words-docs.factor
+++ b/core/words/words-docs.factor
@@ -11,10 +11,7 @@ $nl
 "Parsing words add definitions to the current vocabulary. When a source file is being parsed, the current vocabulary is initially set to " { $vocab-link "scratchpad" } ". The current vocabulary may be changed with the " { $link POSTPONE: IN: } " parsing word (see " { $link "vocabulary-search" } ")."
 { $subsection create }
 { $subsection create-in }
-{ $subsection lookup }
-"Words can output their name and vocabulary:"
-{ $subsection word-name }
-{ $subsection word-vocabulary } ;
+{ $subsection lookup } ;
 
 ARTICLE: "uninterned-words" "Uninterned words"
 "A word that is not a member of any vocabulary is said to be " { $emphasis "uninterned" } "."
@@ -83,6 +80,7 @@ $nl
 { $subsection POSTPONE: inline }
 { $subsection POSTPONE: foldable }
 { $subsection POSTPONE: flushable }
+{ $subsection POSTPONE: recursive }
 "Stack effect declarations are documented in " { $link "effect-declaration" } "." ;
 
 ARTICLE: "word-definition" "Defining words"
@@ -103,8 +101,6 @@ ARTICLE: "word-props" "Word properties"
 "Each word has a hashtable of properties."
 { $subsection word-prop }
 { $subsection set-word-prop }
-{ $subsection word-props }
-{ $subsection set-word-props }
 "The stack effect of the above two words is designed so that it is most convenient when " { $snippet "name" } " is a literal pushed on the stack right before executing this word."
 $nl
 "The following are some of the properties used by the library:"
@@ -128,13 +124,11 @@ $nl
 
     { { { $snippet "\"inferred-effect\"" } } { $link "inference" } }
 
-    { { $snippet "\"specializer\"" } { $link "specializers" } }
+    { { $snippet "\"specializer\"" } { $link "hints" } }
     
     { { { $snippet "\"intrinsics\"" } ", " { $snippet "\"if-intrinsics\"" } } { $link "generator" } }
 
     { { $snippet "\"predicating\"" } " Set on class predicates, stores the corresponding class word" }
-    
-    { { { $snippet "\"constructing\"" } ", " { $snippet "\"constructor-quot\"" } } { $link "tuple-constructors" } }
 }
 "Properties which are defined for classes only:"
 { $table
@@ -145,8 +139,6 @@ $nl
     
     { { $snippet "\"constructor\"" } { $link "tuple-constructors" } }
     
-    { { $snippet "\"slot-names\"" } { $link "tuples" } }
-    
     { { $snippet "\"type\"" } { $link "builtin-classes" } }
     
     { { { $snippet "\"superclass\"" } ", " { $snippet "\"predicate-definition\"" } } { $link "predicates" } }
@@ -159,9 +151,8 @@ $nl
 } ;
 
 ARTICLE: "word.private" "Word implementation details"
-"Primitive definition accessors:"
-{ $subsection word-def }
-{ $subsection set-word-def }
+"The " { $snippet "def" } " slot of a word holds a " { $link quotation } " instance that is called when the word is executed."
+$nl
 "An " { $emphasis "XT" } " (execution token) is the machine code address of a word:"
 { $subsection word-xt } ;
 
@@ -170,12 +161,12 @@ ARTICLE: "words" "Words"
 $nl
 "Word introspection facilities and implementation details are found in the " { $vocab-link "words" } " vocabulary."
 $nl
-"A word consists of several parts:"
-{ $list
-    "a word name,"
-    "a vocabulary name,"
-    "a definition quotation, called when the word when executed,"
-    "a set of word properties, including documentation and other meta-data."
+"Word objects contain several slots:"
+{ $table
+    { { $snippet "name" } "a word name" }
+    { { $snippet "vocabulary" } "a word vocabulary name" }
+    { { $snippet "def" } "a definition quotation" }
+    { { $snippet "props" } "an assoc of word properties, including documentation and other meta-data" }
 }
 "Words are instances of a class."
 { $subsection word }
@@ -189,10 +180,6 @@ $nl
 
 ABOUT: "words"
 
-HELP: compiled? ( word -- ? )
-{ $values { "word" word } { "?" "a boolean" } }
-{ $description "Tests if a word has been compiled." } ;
-
 HELP: execute ( word -- )
 { $values { "word" word } }
 { $description "Executes a word." }
@@ -200,26 +187,6 @@ HELP: execute ( word -- )
     { $example "USING: kernel io words ;" "IN: scratchpad" ": twice dup execute execute ;\n: hello \"Hello\" print ;\n\\ hello twice" "Hello\nHello" }
 } ;
 
-HELP: word-props ( word -- props )
-{ $values { "word" word } { "props" "an assoc" } }
-{ $description "Outputs a word's property table." } ;
-
-HELP: set-word-props ( props word -- )
-{ $values { "props" "an assoc" } { "word" word } }
-{ $description "Sets a word's property table." }
-{ $notes "The given assoc must not be a literal, since it will be mutated by future calls to " { $link set-word-prop } "." }
-{ $side-effects "word" } ;
-
-HELP: word-def ( word -- obj )
-{ $values { "word" word } { "obj" object } }
-{ $description "Outputs a word's primitive definition." } ;
-
-HELP: set-word-def ( obj word -- )
-{ $values { "obj" object } { "word" word } }
-{ $description "Sets a word's primitive definition." }
-$low-level-note
-{ $side-effects "word" } ;
-
 HELP: deferred
 { $class-description "The class of deferred words created by " { $link POSTPONE: DEFER: } "." } ;
 
@@ -334,7 +301,7 @@ HELP: bootstrap-word
 { $values { "word" word } { "target" word } }
 { $description "Looks up a word with the same name and vocabulary as the given word, performing a transformation to handle parsing words in the target dictionary. Used during bootstrap to transfer host words to the target dictionary." } ;
 
-HELP: parsing?
+HELP: parsing-word? ( obj -- ? )
 { $values { "obj" object } { "?" "a boolean" } }
 { $description "Tests if an object is a parsing word declared by " { $link POSTPONE: parsing } "." }
 { $notes "Outputs " { $link f } " if the object is not a word." } ;
diff --git a/core/words/words-tests.factor b/core/words/words-tests.factor
index 2a164ab11d..09ebcb6b77 100755
--- a/core/words/words-tests.factor
+++ b/core/words/words-tests.factor
@@ -1,7 +1,7 @@
 USING: arrays generic assocs kernel math namespaces
 sequences tools.test words definitions parser quotations
 vocabs continuations classes.tuple compiler.units
-io.streams.string accessors ;
+io.streams.string accessors eval ;
 IN: words.tests
 
 [ 4 ] [
@@ -37,7 +37,7 @@ DEFER: plist-test
 ] with-scope
 
 [ "test-scope" ] [
-    "test-scope" "scratchpad" lookup word-name
+    "test-scope" "scratchpad" lookup name>> 
 ] unit-test
 
 [ t ] [ vocabs array? ] unit-test
@@ -120,7 +120,7 @@ DEFER: x
 [ f ] [ "no-loc-2" "words.tests" lookup where ] unit-test
 
 [ ] [ "IN: words.tests : test-last ( -- ) ;" eval ] unit-test
-[ "test-last" ] [ word word-name ] unit-test
+[ "test-last" ] [ word name>> ] unit-test
 
 ! regression
 SYMBOL: quot-uses-a
@@ -183,3 +183,16 @@ SYMBOL: quot-uses-b
 [ t ] [ "decl-forget-test" "words.tests" lookup "flushable" word-prop ] unit-test
 [ ] [ "IN: words.tests : decl-forget-test ;" eval ] unit-test
 [ f ] [ "decl-forget-test" "words.tests" lookup "flushable" word-prop ] unit-test
+
+[ { } ]
+[
+    all-words [
+        "compiled-uses" word-prop
+        keys [ "forgotten" word-prop ] contains?
+    ] filter
+] unit-test
+
+[ { } ] [
+    crossref get keys
+    [ word? ] filter [ "forgotten" word-prop ] filter
+] unit-test
diff --git a/core/words/words.factor b/core/words/words.factor
index 5549f98010..5627a1a015 100755
--- a/core/words/words.factor
+++ b/core/words/words.factor
@@ -1,9 +1,9 @@
 ! Copyright (C) 2004, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays definitions graphs assocs kernel kernel.private
-slots.private math namespaces sequences strings vectors sbufs
-quotations assocs hashtables sorting words.private vocabs
-math.order sets ;
+USING: accessors arrays definitions graphs assocs kernel
+kernel.private slots.private math namespaces sequences strings
+vectors sbufs quotations assocs hashtables sorting words.private
+vocabs math.order sets ;
 IN: words
 
 : word ( -- word ) \ word get-global ;
@@ -15,37 +15,38 @@ GENERIC: execute ( word -- )
 M: word execute (execute) ;
 
 M: word <=>
-    [ dup word-name swap word-vocabulary 2array ] compare ;
+    [ [ name>> ] [ vocabulary>> ] bi 2array ] compare ;
 
 M: word definer drop \ : \ ; ;
 
-M: word definition word-def ;
+M: word definition def>> ;
 
 ERROR: undefined ;
 
 PREDICATE: deferred < word ( obj -- ? )
-    word-def [ undefined ] = ;
+    def>> [ undefined ] = ;
 M: deferred definer drop \ DEFER: f ;
 M: deferred definition drop f ;
 
 PREDICATE: symbol < word ( obj -- ? )
-    dup <wrapper> 1array swap word-def sequence= ;
+    [ def>> ] [ [ ] curry ] bi sequence= ;
 M: symbol definer drop \ SYMBOL: f ;
 M: symbol definition drop f ;
 
 PREDICATE: primitive < word ( obj -- ? )
-    word-def [ do-primitive ] tail? ;
+    [ def>> [ do-primitive ] tail? ]
+    [ sub-primitive>> >boolean ]
+    bi or ;
 M: primitive definer drop \ PRIMITIVE: f ;
 M: primitive definition drop f ;
 
-: word-prop ( word name -- value ) swap word-props at ;
+: word-prop ( word name -- value ) swap props>> at ;
 
-: remove-word-prop ( word name -- )
-    swap word-props delete-at ;
+: remove-word-prop ( word name -- ) swap props>> delete-at ;
 
 : set-word-prop ( word value name -- )
     over
-    [ pick word-props ?set-at swap set-word-props ]
+    [ pick props>> ?set-at >>props drop ]
     [ nip remove-word-prop ] if ;
 
 : reset-props ( word seq -- ) [ remove-word-prop ] with each ;
@@ -53,7 +54,7 @@ M: primitive definition drop f ;
 : lookup ( name vocab -- word ) vocab-words at ;
 
 : target-word ( word -- target )
-    dup word-name swap word-vocabulary lookup ;
+    [ name>> ] [ vocabulary>> ] bi lookup ;
 
 SYMBOL: bootstrapping?
 
@@ -69,7 +70,7 @@ M: word crossref?
     dup "forgotten" word-prop [
         drop f
     ] [
-        word-vocabulary >boolean
+        vocabulary>> >boolean
     ] if ;
 
 GENERIC: compiled-crossref? ( word -- ? )
@@ -80,8 +81,7 @@ GENERIC# (quot-uses) 1 ( obj assoc -- )
 
 M: object (quot-uses) 2drop ;
 
-M: word (quot-uses)
-    >r dup crossref? [ dup r> set-at ] [ r> 2drop ] if ;
+M: word (quot-uses) over crossref? [ conjoin ] [ 2drop ] if ;
 
 : seq-uses ( seq assoc -- ) [ (quot-uses) ] curry each ;
 
@@ -89,73 +89,93 @@ M: array (quot-uses) seq-uses ;
 
 M: callable (quot-uses) seq-uses ;
 
-M: wrapper (quot-uses) >r wrapped r> (quot-uses) ;
+M: wrapper (quot-uses) >r wrapped>> r> (quot-uses) ;
 
 : quot-uses ( quot -- assoc )
     global [ H{ } clone [ (quot-uses) ] keep ] bind ;
 
 M: word uses ( word -- seq )
-    word-def quot-uses keys ;
+    def>> quot-uses keys ;
 
 SYMBOL: compiled-crossref
 
 compiled-crossref global [ H{ } assoc-like ] change-at
 
-: compiled-xref ( word dependencies -- )
-    [ drop compiled-crossref? ] assoc-filter
-    2dup "compiled-uses" set-word-prop
-    compiled-crossref get add-vertex* ;
+SYMBOL: compiled-generic-crossref
+
+compiled-generic-crossref global [ H{ } assoc-like ] change-at
+
+: (compiled-xref) ( word dependencies word-prop variable -- )
+    [ [ set-word-prop ] curry ]
+    [ [ get add-vertex* ] curry ]
+    bi* 2bi ;
+
+: compiled-xref ( word dependencies generic-dependencies -- )
+    [ [ drop crossref? ] assoc-filter ] bi@
+    [ over ] dip
+    [ "compiled-uses" compiled-crossref (compiled-xref) ]
+    [ "compiled-generic-uses" compiled-generic-crossref (compiled-xref) ]
+    2bi* ;
+
+: (compiled-unxref) ( word word-prop variable -- )
+    [ [ [ dupd word-prop ] dip get remove-vertex* ] 2curry ]
+    [ drop [ f swap set-word-prop ] curry ]
+    2bi bi ;
 
 : compiled-unxref ( word -- )
-    dup "compiled-uses" word-prop
-    compiled-crossref get remove-vertex* ;
+    [ "compiled-uses" compiled-crossref (compiled-unxref) ]
+    [ "compiled-generic-uses" compiled-generic-crossref (compiled-unxref) ]
+    bi ;
 
 : delete-compiled-xref ( word -- )
-    dup compiled-unxref
-    compiled-crossref get delete-at ;
+    [ compiled-unxref ]
+    [ compiled-crossref get delete-at ]
+    [ compiled-generic-crossref get delete-at ]
+    tri ;
 
-SYMBOL: +inlined+
-SYMBOL: +called+
+GENERIC: inline? ( word -- ? )
 
-: compiled-usage ( word -- assoc )
-    compiled-crossref get at ;
-
-: compiled-usages ( words -- seq )
-    [ unique dup ] keep [
-        compiled-usage [ nip +inlined+ eq? ] assoc-filter update
-    ] with each keys ;
-
-<PRIVATE
+M: word inline? "inline" word-prop ;
 
 SYMBOL: visited
 
-: reset-on-redefine { "inferred-effect" "no-effect" } ; inline
+: reset-on-redefine { "inferred-effect" "cannot-infer" } ; inline
 
 : (redefined) ( word -- )
     dup visited get key? [ drop ] [
         [ reset-on-redefine reset-props ]
-        [ dup visited get set-at ]
+        [ visited get conjoin ]
         [
             crossref get at keys
             [ word? ] filter
-            [ reset-on-redefine [ word-prop ] with contains? ] filter
+            [
+                [ reset-on-redefine [ word-prop ] with contains? ]
+                [ inline? ]
+                bi or
+            ] filter
             [ (redefined) ] each
         ] tri
     ] if ;
 
-PRIVATE>
-
 : redefined ( word -- )
-    H{ } clone visited [ (redefined) ] with-variable ;
+    [ H{ } clone visited [ (redefined) ] with-variable ]
+    [ changed-definition ]
+    bi ;
 
 : define ( word def -- )
     [ ] like
     over unxref
     over redefined
-    over set-word-def
-    dup changed-definition
+    >>def
     dup crossref? [ dup xref ] when drop ;
 
+: set-stack-effect ( effect word -- )
+    2dup "declared-effect" word-prop = [ 2drop ] [
+        swap
+        [ "declared-effect" set-word-prop ]
+        [ drop dup primitive? [ dup redefined ] unless drop ] 2bi
+    ] if ;
+
 : define-declared ( word def effect -- )
     pick swap "declared-effect" set-word-prop
     define ;
@@ -163,6 +183,9 @@ PRIVATE>
 : make-inline ( word -- )
     t "inline" set-word-prop ;
 
+: make-recursive ( word -- )
+    t "recursive" set-word-prop ;
+
 : make-flushable ( word -- )
     t "flushable" set-word-prop ;
 
@@ -180,9 +203,10 @@ GENERIC: reset-word ( word -- )
 M: word reset-word
     {
         "unannotated-def"
-        "parsing" "inline" "foldable" "flushable"
+        "parsing" "inline" "recursive" "foldable" "flushable"
         "predicating"
         "reading" "writing"
+        "reader" "writer"
         "constructing"
         "declared-effect" "constructor-quot" "delimiter"
     } reset-props ;
@@ -192,9 +216,10 @@ GENERIC: subwords ( word -- seq )
 M: word subwords drop f ;
 
 : reset-generic ( word -- )
-    dup subwords forget-all
-    dup reset-word
-    { "methods" "combination" "default-method" } reset-props ;
+    [ subwords forget-all ]
+    [ reset-word ]
+    [ { "methods" "combination" "default-method" } reset-props ]
+    tri ;
 
 : gensym ( -- word )
     "( gensym )" f <word> ;
@@ -203,7 +228,7 @@ M: word subwords drop f ;
     gensym dup rot define ;
 
 : reveal ( word -- )
-    dup word-name over word-vocabulary dup vocab-words
+    dup [ name>> ] [ vocabulary>> ] bi dup vocab-words
     [ ] [ no-vocab ] ?if
     set-at ;
 
@@ -220,8 +245,7 @@ ERROR: bad-create name vocab ;
 : constructor-word ( name vocab -- word )
     >r "<" swap ">" 3append r> create ;
 
-: parsing? ( obj -- ? )
-    dup word? [ "parsing" word-prop ] [ drop f ] if ;
+PREDICATE: parsing-word < word "parsing" word-prop ;
 
 : delimiter? ( obj -- ? )
     dup word? [ "delimiter" word-prop ] [ drop f ] if ;
@@ -232,18 +256,18 @@ M: word where "loc" word-prop ;
 M: word set-where swap "loc" set-word-prop ;
 
 M: word forget*
-    dup "forgotten" word-prop [
-        dup delete-xref
-        dup delete-compiled-xref
-        dup word-name over word-vocabulary vocab-words delete-at
-        dup t "forgotten" set-word-prop
-    ] unless drop ;
+    dup "forgotten" word-prop [ drop ] [
+        [ delete-xref ]
+        [ [ name>> ] [ vocabulary>> vocab-words ] bi delete-at ]
+        [ t "forgotten" set-word-prop ]
+        tri
+    ] if ;
 
 M: word hashcode*
     nip 1 slot { fixnum } declare ;
 
 M: word literalize <wrapper> ;
 
-: ?word-name dup word? [ word-name ] when ;
+: ?word-name ( word -- name ) dup word? [ name>> ] when ;
 
 : xref-words ( -- ) all-words [ xref ] each ;
diff --git a/extra/24-game/24-game-docs.factor b/extra/24-game/24-game-docs.factor
new file mode 100644
index 0000000000..fb1f5c057b
--- /dev/null
+++ b/extra/24-game/24-game-docs.factor
@@ -0,0 +1,67 @@
+USING: help.markup help.syntax math kernel ;
+IN: 24-game
+
+HELP: play-game ( -- )
+{ $description "Starts the game!" }
+{ $examples
+    { $unchecked-example
+        "USE: 24-game"
+        "play-game"
+        "{ 8 2 1 2 }\n"
+        "Commands: { + - * / rot swap q }\n"
+        "swap\n"
+        "{ 8 2 2 1 }\n"
+        "Commands: { + - * / rot swap q }\n"
+        "-\n"
+        "{ 8 2 1 }\n"
+        "Commands: { + - * / rot swap q }\n"
+        "+\n"
+        "{ 8 3 }\n"
+        "Commands: { + - * / swap q }\n"
+        "*\n"
+        "You WON!"
+    }
+} ;
+
+HELP: 24-able ( -- vector )
+{ $values { "vector" "vector of 4 integers" } }
+{ $description
+    "Produces a vector with 4 integers. With the following condition: "
+    "If these integers were directly on the stack, one can process them into 24, "
+    "just using the provided commands and the 4 numbers. The Following are the "
+    "provided commands: "
+    { $link + } ", " { $link - } ", " { $link * } ", "
+    { $link / } ", " { $link swap } ", and " { $link rot } "."
+}
+{ $examples
+    { $example
+        "USING: 24-game kernel sequences prettyprint ;"
+        "24-able length 4 = ."
+        "t"
+    }
+    { $notes { $link 24-able? } " is used in " { $link 24-able } "." }
+} ;
+
+HELP: 24-able? ( quad -- t/f )
+{ $values
+    { "quad" "vector of 4 integers" }
+    { "t/f" "a boolean" }
+}
+{ $description
+    "Tells if it is possible to win 24-game if it was initiated "
+    "with this sequence."
+} ;
+
+HELP: build-quad ( -- array )
+{ $values
+    { "array" "an array of 4 numbers" }
+}
+{ $description "Builds an array of 4 random numbers." } ;
+ARTICLE: "24-game" "The Game of 24"
+"A classic math game, where one attempts to create 24, by applying "
+"arithmetical operations and some shuffle words to a stack of 4 numbers. "
+{ $subsection play-game }
+{ $subsection 24-able }
+{ $subsection 24-able? }
+{ $subsection build-quad } ;
+ABOUT: "24-game"
diff --git a/extra/24-game/24-game.factor b/extra/24-game/24-game.factor
new file mode 100644
index 0000000000..126215ab13
--- /dev/null
+++ b/extra/24-game/24-game.factor
@@ -0,0 +1,63 @@
+! Copyright © 2008 Reginald Keith Ford II
+! 24, the Factor game!
+
+USING: kernel random namespaces shuffle sequences
+parser io math prettyprint combinators continuations
+arrays words quotations accessors math.parser backtrack assocs ;
+
+IN: 24-game
+SYMBOL: commands
+: nop ;
+: do-something ( a b -- c ) { + - * } amb-execute ;
+: maybe-swap ( a b -- a b ) { nop swap } amb-execute ;
+: some-rots ( a b c -- a b c )
+    #! Try each permutation of 3 elements.
+    { nop rot -rot swap spin swapd } amb-execute ;
+: makes-24? ( a b c d -- ? )
+        [
+            2 [ some-rots do-something ] times
+            maybe-swap do-something
+            24 =
+        ]
+        [ 4drop ]
+    if-amb ;
+: q ( -- obj ) "quit" ;
+: show-commands ( -- ) "Commands: " write commands get unparse print ;
+: report ( vector -- ) unparse print show-commands ;
+: give-help ( -- ) "Command not found..." print show-commands ;
+: find-word ( string choices -- word ) [ name>> = ] with find nip ;
+: obtain-word ( -- word )
+    readln commands get find-word dup
+    [ drop give-help obtain-word ] unless ;
+: done? ( vector -- t/f ) 1 swap length = ;
+: victory? ( vector -- t/f ) { 24 } = ;
+: apply-word ( vector word -- array ) 1quotation with-datastack >array ;
+: update-commands ( vector -- )
+    length 3 <
+        [ commands [ \ rot swap remove ] change ]
+        [ ]
+    if ;
+DEFER: check-status
+: quit-game ( vector -- ) drop "you're a quitter" print ;
+: quit? ( vector -- t/f ) peek "quit" = ;
+: end-game ( vector -- )
+    dup victory? 
+        [ drop "You WON!" ]
+        [ pop number>string " is not 24... You lose." append ]
+    if print ;
+    
+! The following two words are mutually recursive,
+! providing the repl loop of the game
+: repeat ( vector -- )
+    dup report obtain-word apply-word dup update-commands check-status  ;
+: check-status ( object -- )
+    dup done?
+        [ end-game ] 
+        [ dup quit? [ quit-game ] [ repeat ] if ]
+    if ;
+: build-quad ( -- array ) 4 [ 10 random ] replicate >array ;
+: 24-able? ( vector -- t/f ) [ makes-24? ] with-datastack first ;
+: 24-able ( -- vector ) build-quad dup 24-able? [ drop build-quad ] unless ;
+: set-commands ( -- ) { + - * / rot swap q } commands set ;
+: play-game ( -- ) set-commands 24-able repeat ;
+MAIN: play-game
\ No newline at end of file
diff --git a/extra/24-game/authors.txt b/extra/24-game/authors.txt
new file mode 100644
index 0000000000..137b1605da
--- /dev/null
+++ b/extra/24-game/authors.txt
@@ -0,0 +1 @@
+Reginald Ford
\ No newline at end of file
diff --git a/extra/24-game/tags.txt b/extra/24-game/tags.txt
new file mode 100644
index 0000000000..d2f0464fdb
--- /dev/null
+++ b/extra/24-game/tags.txt
@@ -0,0 +1,2 @@
+demos
+games
\ No newline at end of file
diff --git a/extra/animations/animations-docs.factor b/extra/animations/animations-docs.factor
new file mode 100644
index 0000000000..000c0ce4cc
--- /dev/null
+++ b/extra/animations/animations-docs.factor
@@ -0,0 +1,65 @@
+USING: help.markup help.syntax ;
+IN: animations
+
+HELP: animate ( quot duration -- )
+
+{ $values
+    { "quot" "a quot which uses " { $link progress } }
+    { "duration" "a duration of time" }
+}
+{ $description
+    { $link animate } " calls " { $link reset-progress }
+    " , then continously calls the given quot until the"
+    " duration of time has elapsed. The quot should use "
+    { $link progress } " at least once."
+}
+{ $examples
+    { $unchecked-example 
+        "USING: animations calendar threads prettyprint ;"
+        "[ 1 sleep progress unparse write \" ms elapsed\" print ] "
+        "1/20 seconds animate ;"
+        "46 ms elapsed\n17 ms elapsed"
+    }
+    { $notes "The amount of time elapsed between these iterations will very." }
+} ;
+
+HELP: reset-progress ( -- )
+{ $description
+    "Initiates the timer. Call this before using "
+    "a loop which makes use of " { $link progress } "."
+} ;
+
+HELP: progress ( -- time )
+{ $values { "time" "an integer" } }
+{ $description
+    "Gives the time elapsed since the last time"
+    " this word was called, in milliseconds." 
+}
+{ $examples
+    { $unchecked-example
+        "USING: animations threads prettyprint ;"
+        "reset-progress 3 "
+        "[ 1 sleep progress unparse write \"ms elapsed\" print ] "
+        "times ;"
+        "31 ms elapsed\n18 ms elapsed\n16 ms elapsed"
+    }
+    { $notes "The amount of time elapsed between these iterations will very." }
+} ;
+
+ARTICLE: "animations" "Animations"
+"Provides a lightweight framework for properly simulating continuous"
+" functions of real time. This framework helps one create animations "
+"that use rates which do not change across platforms. The speed of the "
+"computer should correlate with the smoothness of the animation, not "
+"the speed of the animation!"
+{ $subsection animate }
+{ $subsection reset-progress }
+{ $subsection progress }
+! A little talk about when to use progress and when to use animate
+    { $link progress } " specifically provides the length of time since "
+    { $link reset-progress } " was called, and also calls "
+    { $link reset-progress } " as its last action. This can be directly "
+    "used when one's quote runs for a specific number of iterations, instead "
+    "of a length of time. If the animation is like most, and is expected to "
+    "run for a specific length of time, " { $link animate } " should be used." ;
+ABOUT: "animations"
\ No newline at end of file
diff --git a/extra/animations/animations.factor b/extra/animations/animations.factor
new file mode 100644
index 0000000000..8ac4abe1fa
--- /dev/null
+++ b/extra/animations/animations.factor
@@ -0,0 +1,17 @@
+! Small library for cross-platform continuous functions of real time
+
+USING: kernel shuffle system locals
+prettyprint math io namespaces threads calendar ;
+IN: animations
+
+SYMBOL: last-loop
+SYMBOL: sleep-period
+
+: reset-progress ( -- ) millis last-loop set ;
+! : my-progress ( -- progress ) millis 
+: progress ( -- progress ) millis last-loop get - reset-progress ;
+: progress-peek ( -- progress ) millis last-loop get - ;
+: set-end ( duration -- end-time ) duration>milliseconds millis + ;
+: loop ( quot end -- ) dup millis > [ [ dup call ] dip loop ] [ 2drop ] if ; inline
+: animate ( quot duration -- ) reset-progress set-end loop ; inline
+: sample ( revs quot -- avg ) reset-progress dupd times progress swap / ; inline
\ No newline at end of file
diff --git a/extra/animations/authors.txt b/extra/animations/authors.txt
new file mode 100644
index 0000000000..137b1605da
--- /dev/null
+++ b/extra/animations/authors.txt
@@ -0,0 +1 @@
+Reginald Ford
\ No newline at end of file
diff --git a/extra/arrays/lib/lib.factor b/extra/arrays/lib/lib.factor
deleted file mode 100644
index 6530e65ed6..0000000000
--- a/extra/arrays/lib/lib.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-
-USING: kernel arrays sequences sequences.private macros ;
-
-IN: arrays.lib
-
-MACRO: narray ( n -- quot )
-    dup [ f <array> ] curry
-    swap <reversed> [
-        [ swap [ set-nth-unsafe ] keep ] curry
-    ] map concat append ;
diff --git a/extra/arrays/lib/summary.txt b/extra/arrays/lib/summary.txt
deleted file mode 100644
index 5ecd994103..0000000000
--- a/extra/arrays/lib/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Non-core array words
diff --git a/extra/asn1/asn1.factor b/extra/asn1/asn1.factor
index 50102d1929..df5d11be75 100644
--- a/extra/asn1/asn1.factor
+++ b/extra/asn1/asn1.factor
@@ -3,7 +3,7 @@
 
 USING: arrays asn1.ldap assocs byte-arrays combinators
 continuations io io.binary io.streams.string kernel math
-math.parser namespaces pack strings sequences ;
+math.parser namespaces pack strings sequences accessors ;
 
 IN: asn1
 
@@ -48,17 +48,13 @@ SYMBOL: elements
 
 TUPLE: element syntax id tag tagclass encoding contentlength newobj objtype ;
 
-: <element> element new ;
-
-: set-id ( -- boolean )
-    read1 dup elements get set-element-id ;
 
 : get-id ( -- id )
-    elements get element-id ;
+    elements get id>> ;
 
 : (set-tag) ( -- )
-    elements get element-id 31 bitand
-    dup elements get set-element-tag
+    elements get id>> 31 bitand
+    dup elements get (>>tag)
     31 < [
         [ "unsupported tag encoding: #{" % 
           get-id # "}" %
@@ -67,30 +63,30 @@ TUPLE: element syntax id tag tagclass encoding contentlength newobj objtype ;
 
 : set-tagclass ( -- )
     get-id -6 shift tag-classes nth
-    elements get set-element-tagclass ;
+    elements get (>>tagclass) ;
 
 : set-encoding ( -- )
     get-id HEX: 20 bitand
     zero? "primitive" "constructed" ?
-    elements get set-element-encoding ;
+    elements get (>>encoding) ;
 
 : set-content-length ( -- )
     read1
     dup 127 <= [ 
         127 bitand read be>
-    ] unless elements get set-element-contentlength ;
+    ] unless elements get (>>contentlength) ;
 
 : set-newobj ( -- )
-    elements get element-contentlength read
-    elements get set-element-newobj ;
+    elements get contentlength>> read
+    elements get (>>newobj) ;
 
 : set-objtype ( syntax -- )
     builtin-syntax 2array [
-        elements get element-tagclass swap at
-        elements get element-encoding swap at
-        elements get element-tag
+        elements get tagclass>> swap at
+        elements get encoding>> swap at
+        elements get tag>>
         swap at [ 
-            elements get set-element-objtype
+            elements get (>>objtype)
         ] when*
     ] each ;
 
@@ -99,32 +95,36 @@ DEFER: read-ber
 SYMBOL: end
 
 : (read-array) ( -- )
-    elements get element-id [
-        elements get element-syntax read-ber
+    elements get id>> [
+        elements get syntax>> read-ber
         dup end = [ drop ] [ , (read-array) ] if
     ] when ;
 
 : read-array ( -- array ) [ (read-array) ] { } make ;
 
 : set-case ( -- object )
-    elements get element-newobj
-    elements get element-objtype {
+    elements get newobj>>
+    elements get objtype>> {
         { "boolean" [ "\0" = not ] }
         { "string" [ "" or ] }
         { "integer" [ be> ] }
         { "array" [ "" or [ read-array ] with-string-reader ] }
     } case ;
 
+: set-id ( -- boolean )
+    read1 dup elements get (>>id) ;
+
 : read-ber ( syntax -- object )
-    <element> elements set
-    elements get set-element-syntax
+    element new
+        swap >>syntax
+    elements set
     set-id [
         (set-tag)
         set-tagclass
         set-encoding
         set-content-length
         set-newobj
-        elements get element-syntax set-objtype
+        elements get syntax>> set-objtype
         set-case
     ] [ end ] if ;
 
@@ -181,10 +181,10 @@ TUPLE: tag value ;
     ] with-scope ; inline
 
 : set-tag ( value -- )
-    tagnum get set-tag-value ;
+    tagnum get (>>value) ;
 
 M: string >ber ( str -- byte-array )
-    tagnum get tag-value 1array "C" pack-native swap dup
+    tagnum get value>> 1array "C" pack-native swap dup
     length >ber-length-encoding swapd append swap
     >byte-array append ;
 
diff --git a/extra/assocs/lib/lib-tests.factor b/extra/assocs/lib/lib-tests.factor
new file mode 100644
index 0000000000..c7e1aa4fbf
--- /dev/null
+++ b/extra/assocs/lib/lib-tests.factor
@@ -0,0 +1,17 @@
+USING: kernel tools.test sequences vectors assocs.lib ;
+IN: assocs.lib.tests
+
+{ 1 1 } [ [ ?push ] histogram ] must-infer-as
+
+! substitute
+[ { 2 } ] [ { 1 } H{ { 1 2 } } [ ?at drop ] curry map ] unit-test
+[ { 3 } ] [ { 3 } H{ { 1 2 } } [ ?at drop ] curry map ] unit-test
+
+[ 2 ] [ 1 H{ { 1 2 } } [ ] [ ] if-at ] unit-test
+[ 3 ] [ 3 H{ { 1 2 } } [ ] [ ] if-at ] unit-test
+
+[ "hi" ] [ 1 H{ { 1 2 } } [ drop "hi" ] when-at ] unit-test
+[ 3 ] [ 3 H{ { 1 2 } } [ drop "hi" ] when-at ] unit-test
+[ 2 ] [ 1 H{ { 1 2 } } [ drop "hi" ] unless-at ] unit-test
+[ "hi" ] [ 3 H{ { 1 2 } } [ drop "hi" ] unless-at ] unit-test
+
diff --git a/extra/assocs/lib/lib.factor b/extra/assocs/lib/lib.factor
index c3e487a9fc..ed9b4bf0c4 100755
--- a/extra/assocs/lib/lib.factor
+++ b/extra/assocs/lib/lib.factor
@@ -1,13 +1,8 @@
 USING: arrays assocs kernel vectors sequences namespaces
-random math.parser math fry ;
+       random math.parser math fry ;
+
 IN: assocs.lib
 
-: ref-at ( table key -- value ) swap at ;
-
-: put-at* ( table key value -- ) swap rot set-at ;
-
-: put-at ( table key value -- table ) swap pick set-at ;
-
 : set-assoc-stack ( value key seq -- )
     dupd [ key? ] with find-last nip set-at ;
 
@@ -17,9 +12,6 @@ IN: assocs.lib
 : replace-at ( assoc value key -- assoc )
     >r >r dup r> 1vector r> rot set-at ;
 
-: insert-at ( value key assoc -- )
-    [ ?push ] change-at ;
-
 : peek-at* ( assoc key -- obj ? )
     swap at* dup [ >r peek r> ] when ;
 
@@ -32,7 +24,7 @@ IN: assocs.lib
 : multi-assoc-each ( assoc quot -- )
     [ with each ] curry assoc-each ; inline
 
-: insert ( value variable -- ) namespace insert-at ;
+: insert ( value variable -- ) namespace push-at ;
 
 : generate-key ( assoc -- str )
     >r 32 random-bits >hex r>
@@ -44,4 +36,14 @@ IN: assocs.lib
 : histogram ( assoc quot -- assoc' )
     H{ } clone [
         swap [ change-at ] 2curry assoc-each
-    ] keep ;
+    ] keep ; inline
+
+: ?at ( obj assoc -- value/obj ? )
+    dupd at* [ [ nip ] [ drop ] if ] keep ;
+
+: if-at ( obj assoc quot1 quot2 -- )
+    [ ?at ] 2dip if ; inline
+
+: when-at ( obj assoc quot -- ) [ ] if-at ; inline
+
+: unless-at ( obj assoc quot -- ) [ ] swap if-at ; inline
diff --git a/extra/automata/automata.factor b/extra/automata/automata.factor
index b6d4152d0e..979a733692 100644
--- a/extra/automata/automata.factor
+++ b/extra/automata/automata.factor
@@ -1,6 +1,6 @@
 
 USING: kernel math math.parser random arrays hashtables assocs sequences
-       vars ;
+       grouping vars ;
 
 IN: automata
 
@@ -32,18 +32,6 @@ dup >rule-number rule-values rule-keys [ rule> set-at ] 2each ;
 ! step-wrapped-line
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: 3nth ( n seq -- slice ) >r dup 3 + r> <slice> ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: map3-i ( seq -- i ) length 2 - ;
-
-: map3-quot ( seq quot -- quot ) >r [ 3nth ] curry r> compose ; inline
-
-: map3 ( seq quot -- seq ) >r dup map3-i swap r> map3-quot map ; inline
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
 : pattern>state ( {_a_b_c_} -- state ) rule> at ;
 
 : cap-line ( line -- 0-line-0 ) { 0 } prepend { 0 } append ;
@@ -51,10 +39,9 @@ dup >rule-number rule-values rule-keys [ rule> set-at ] 2each ;
 : wrap-line ( a-line-z -- za-line-za )
 dup peek 1array swap dup first 1array append append ;
 
-: step-line ( line -- new-line ) [ >array pattern>state ] map3 ;
-
-: step-capped-line ( line -- new-line ) cap-line step-line ;
+: step-line ( line -- new-line ) 3 <clumps> [ pattern>state ] map ;
 
+: step-capped-line  ( line -- new-line ) cap-line  step-line ;
 : step-wrapped-line ( line -- new-line ) wrap-line step-line ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
diff --git a/extra/automata/tags.txt b/extra/automata/ui/tags.txt
similarity index 100%
rename from extra/automata/tags.txt
rename to extra/automata/ui/tags.txt
diff --git a/extra/automata/ui/ui.factor b/extra/automata/ui/ui.factor
index 467db53366..037cf41118 100644
--- a/extra/automata/ui/ui.factor
+++ b/extra/automata/ui/ui.factor
@@ -6,7 +6,6 @@ USING: kernel namespaces math quotations arrays hashtables sequences threads
        ui
        ui.gestures
        ui.gadgets
-       ui.gadgets.handler
        ui.gadgets.slate
        ui.gadgets.labels
        ui.gadgets.buttons
@@ -14,8 +13,10 @@ USING: kernel namespaces math quotations arrays hashtables sequences threads
        ui.gadgets.packs
        ui.gadgets.grids
        ui.gadgets.theme
+       ui.gadgets.handler
+       accessors
        namespaces.lib assocs.lib vars
-       rewrite-closures automata ;
+       rewrite-closures automata math.geometry.rect newfx ;
 
 IN: automata.ui
 
@@ -29,7 +30,7 @@ IN: automata.ui
 
 : draw-bitmap ( bitmap -- ) GL_POINTS glBegin (draw-bitmap) glEnd ;
 
-: display ( -- ) black gl-color bitmap> draw-bitmap ;
+: display ( -- ) black set-color bitmap> draw-bitmap ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -57,29 +58,40 @@ slate> relayout-1 ;
 
 DEFER: automata-window
 
-: automata-window* ( -- ) init-rule set-interesting <frame>
+: automata-window* ( -- )
+  init-rule
+  set-interesting
 
-{
-[ "1 - Center"      [ start-center    ] view-button ]
-[ "2 - Random"      [ start-random    ] view-button ]
-[ "3 - Continue"    [ run-rule        ] view-button ]
-[ "5 - Random Rule" [ random-rule     ] view-button ]
-[ "n - New"         [ automata-window ] view-button ]
-} make*
-[ [ gadget, ] curry ] map concat ! Hack
-make-shelf over @top grid-add
+  <frame>
 
-[ display ] closed-quot <slate> { 400 400 } over set-slate-dim dup >slate
-over @center grid-add
+    <shelf>
 
-{
-{ T{ key-down f f "1" } [ [ start-center    ] view-action ] }
-{ T{ key-down f f "2" } [ [ start-random    ] view-action ] }
-{ T{ key-down f f "3" } [ [ run-rule        ] view-action ] }
-{ T{ key-down f f "5" } [ [ random-rule     ] view-action ] }
-{ T{ key-down f f "n" } [ [ automata-window ] view-action ] }
-} [ make* ] map >hashtable <handler> tuck set-gadget-delegate
-"Automata" open-window ;
+      "1 - Center"      [ start-center    ] view-button add-gadget
+      "2 - Random"      [ start-random    ] view-button add-gadget
+      "3 - Continue"    [ run-rule        ] view-button add-gadget
+      "5 - Random Rule" [ random-rule     ] view-button add-gadget
+      "n - New"         [ automata-window ] view-button add-gadget
+
+    @top grid-add
+
+    C[ display ] <slate>
+      { 400 400 } >>pdim
+    dup >slate
+
+    @center grid-add
+
+  <handler>
+
+  H{ }
+    T{ key-down f f "1" } [ start-center    ] view-action is
+    T{ key-down f f "2" } [ start-random    ] view-action is
+    T{ key-down f f "3" } [ run-rule        ] view-action is
+    T{ key-down f f "5" } [ random-rule     ] view-action is
+    T{ key-down f f "n" } [ automata-window ] view-action is
+
+  >>table
+
+  "Automata" open-window ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
diff --git a/extra/backtrack/authors.txt b/extra/backtrack/authors.txt
new file mode 100755
index 0000000000..50c9c38812
--- /dev/null
+++ b/extra/backtrack/authors.txt
@@ -0,0 +1 @@
+William Schlieper
\ No newline at end of file
diff --git a/extra/backtrack/backtrack.factor b/extra/backtrack/backtrack.factor
new file mode 100755
index 0000000000..df397025f6
--- /dev/null
+++ b/extra/backtrack/backtrack.factor
@@ -0,0 +1,69 @@
+! Copyright (C) 2008 William Schlieper
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: kernel continuations combinators sequences quotations arrays namespaces
+       fry summary assocs math math.order macros ;
+
+IN: backtrack
+
+SYMBOL: failure
+
+ERROR: amb-failure ;
+
+M: amb-failure summary drop "Backtracking failure" ;
+
+: fail ( -- )
+    failure get [ continue ]
+    [ amb-failure ] if* ;
+
+: require ( ? -- )
+    [ fail ] unless ;
+
+MACRO: checkpoint ( quot -- quot' )
+    '[ failure get ,
+       '[ '[ failure set , continue ] callcc0
+          , failure set @ ] callcc0 ] ;
+
+: number-from ( from -- from+n )
+    [ 1 + number-from ] checkpoint ;
+
+<PRIVATE
+
+: unsafe-number-from-to ( to from -- to from+n )
+    2dup = [ [ 1 + unsafe-number-from-to ] checkpoint ] unless ;
+
+: number-from-to ( to from -- to from+n )
+    2dup < [ fail ] when unsafe-number-from-to ;
+
+: amb-integer ( seq -- int )
+    length 1 - 0 number-from-to nip ;
+
+MACRO: unsafe-amb ( seq -- quot )
+    dup length 1 =
+    [ first 1quotation ]
+    [ [ first ] [ rest ] bi
+      '[ , [ drop , unsafe-amb ] checkpoint ] ] if ;
+
+PRIVATE> 
+
+: amb-lazy ( seq -- elt )
+    [ amb-integer ] [ nth ] bi ;
+
+: amb ( seq -- elt )
+    [ fail f ]
+    [ unsafe-amb ] if-empty ; inline
+
+MACRO: amb-execute ( seq -- quot )
+    [ length 1 - ] [ <enum> [ 1quotation ] assoc-map ] bi
+    '[ , 0 unsafe-number-from-to nip , case ] ;
+
+: if-amb ( true false -- )
+    [
+        [ { t f } amb ]
+        [ '[ @ require t ] ]
+        [ '[ @ f ] ]
+        tri* if
+    ] with-scope ; inline
+
+: cut-amb ( -- )
+    f failure set ;
diff --git a/extra/backtrack/summary.txt b/extra/backtrack/summary.txt
new file mode 100755
index 0000000000..d2d3918a98
--- /dev/null
+++ b/extra/backtrack/summary.txt
@@ -0,0 +1 @@
+Simple non-determinism
\ No newline at end of file
diff --git a/extra/bake/bake-tests.factor b/extra/bake/bake-tests.factor
new file mode 100644
index 0000000000..64329de92d
--- /dev/null
+++ b/extra/bake/bake-tests.factor
@@ -0,0 +1,28 @@
+
+USING: kernel tools.test bake ;
+
+IN: bake.tests
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: unit-test* ( input output -- ) swap unit-test ;
+
+: must-be-t ( in -- ) [ t ] swap unit-test ;
+: must-be-f ( in -- ) [ f ] swap unit-test ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[ 10 20 30 `{ , , , } ] [ { 10 20 30 } ] unit-test*
+
+[ 10 20 30 `{ , { , } , } ] [ { 10 { 20 } 30 } ] unit-test*
+
+[ 10 { 20 21 22 } 30 `{ , , , } ] [ { 10 { 20 21 22 } 30 } ] unit-test*
+
+[ 10 { 20 21 22 } 30 `{ , @ , } ] [ { 10 20 21 22 30 } ] unit-test*
+
+[ { 1 2 3 } `{ @ } ] [ { 1 2 3 } ] unit-test*
+
+[ { 1 2 3 } { 4 5 6 } { 7 8 9 } `{ @ @ @ } ]
+[ { 1 2 3 4 5 6 7 8 9 } ]
+unit-test*
+
diff --git a/extra/bake/bake.factor b/extra/bake/bake.factor
index 987122f05c..ef4b9d241f 100644
--- a/extra/bake/bake.factor
+++ b/extra/bake/bake.factor
@@ -1,61 +1,97 @@
 
-USING: kernel parser namespaces quotations arrays vectors strings
-       sequences assocs classes.tuple math combinators ;
+USING: kernel parser namespaces sequences quotations arrays vectors splitting
+       strings words math generalizations
+       macros combinators.lib combinators.conditional newfx ;
 
 IN: bake
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-TUPLE: insert-quot expr ;
+SYMBOL: ,
+SYMBOL: @
 
-C: <insert-quot> insert-quot 
-
-: ,[ \ ] [ >quotation <insert-quot> ] parse-literal ; parsing
+: comma? ( obj -- ? ) , = ;
+: atsym? ( obj -- ? ) @ = ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-TUPLE: splice-quot expr ;
+DEFER: [bake]
 
-C: <splice-quot> splice-quot
-
-: %[ \ ] [ >quotation <splice-quot> ] parse-literal ; parsing
+: broil-element ( obj -- quot )
+    {
+      { [ comma?    ] [ drop [ >r ]          ] }
+      { [ f =       ] [ [ >r ] prefix-on     ] }
+      { [ integer?  ] [ [ >r ] prefix-on     ] }
+      { [ string?   ] [ [ >r ] prefix-on     ] }
+      { [ sequence? ] [ [bake] [ >r ] append ] }
+      { [ word?     ] [ literalize [ >r ] prefix-on ] }
+      { [ drop t    ] [ [ >r ] prefix-on     ] }
+    }
+  1cond ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: ,u ( seq -- seq ) unclip building get push ;
+: constructor ( seq -- quot )
+    {
+      { [ array? ]     [ length [ narray ] prefix-on ] }
+!      { [ quotation? ] [ length [ ncurry ] prefix-on [ ] prefix ] }
+      { [ quotation? ] [ length [ narray >quotation ] prefix-on ] }
+      { [ vector? ]    [ length [ narray >vector    ] prefix-on ] }
+    }
+  1cond ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-SYMBOL: exemplar
-
-: reset-building ( -- ) 1024 <vector> building set ;
-
-: save-exemplar ( seq -- seq ) dup exemplar set ;
-
-: finish-baking ( -- seq ) building get exemplar get like ;
-
-DEFER: bake
-
-: bake-item ( item -- )
-  { { [ dup \ , = ]        [ drop , ] }
-    { [ dup \ % = ]        [ drop % ] }
-    { [ dup \ ,u = ]       [ drop ,u ] }
-    { [ dup insert-quot? ] [ insert-quot-expr call , ] }
-    { [ dup splice-quot? ] [ splice-quot-expr call % ] }
-    { [ dup integer? ]     [ , ] }
-    { [ dup string? ]      [ , ] }
-    { [ dup tuple? ]       [ tuple>array bake >tuple , ] }
-    { [ dup assoc? ]       [ [ >alist bake ] keep assoc-like , ] }
-    { [ dup sequence? ]    [ bake , ] }
-    { [ t ]                [ , ] } }
-  cond ;
-
-: bake-items ( seq -- ) [ bake-item ] each ;
-
-: bake ( seq -- seq )
-  [ reset-building save-exemplar bake-items finish-baking ] with-scope ;
+: [broil] ( seq -- quot )
+    [ reverse [ broil-element ] map concat ]
+    [ length  [ drop [ r> ]   ] map concat ]
+    [ constructor ]
+  tri append append
+  >quotation ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: `{ \ } [ >array ] parse-literal \ bake parsed ; parsing
+SYMBOL: saved-sequence
 
+: [connector] ( -- quot )
+  saved-sequence get quotation? [ [ compose ] ] [ [ append ] ] if ;
+
+: [starter] ( -- quot )
+  saved-sequence get
+    {
+      { [ quotation? ] [ drop [  [ ] ] ] }
+      { [ array?     ] [ drop [  { } ] ] }
+      { [ vector?    ] [ drop [ V{ } ] ] }
+    }
+  1cond ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: [simmer] ( seq -- quot )
+
+  dup saved-sequence set
+
+  { @ } split reverse
+    [ [ [bake] [connector] append [ >r ] append ] map concat ]
+    [ length [ drop [ r> ] [connector] append   ] map concat ]
+  bi
+
+  >r 1 invert-index pluck r> ! remove the last append/compose
+
+  [starter] prepend
+
+  append ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: [bake] ( seq -- quot ) [ @ member? ] [ [simmer] ] [ [broil] ] 1if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MACRO: bake ( seq -- quot ) [bake] ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+:  `{ \ } [ >array     ] parse-literal \ bake parsed ; parsing
+: `V{ \ } [ >vector    ] parse-literal \ bake parsed ; parsing
+:  `[ \ ] [ >quotation ] parse-literal \ bake parsed ; parsing
\ No newline at end of file
diff --git a/extra/bake/fry/fry-tests.factor b/extra/bake/fry/fry-tests.factor
new file mode 100755
index 0000000000..74408dc9f9
--- /dev/null
+++ b/extra/bake/fry/fry-tests.factor
@@ -0,0 +1,89 @@
+
+USING: tools.test math prettyprint kernel io arrays vectors sequences
+       generalizations bake bake.fry ;
+
+IN: bake.fry.tests
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: unit-test* ( input output -- ) swap unit-test ;
+
+: must-be-t ( in -- ) [ t ] swap unit-test ;
+: must-be-f ( in -- ) [ f ] swap unit-test ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[ [ 3 + ] ] [ 3 '[ , + ] ] unit-test
+
+[ [ 1 3 + ] ] [ 1 3 '[ , , + ] ] unit-test
+
+[ [ 1 + ] ] [ 1 [ + ] '[ , @ ] ] unit-test
+
+[ [ 1 + . ] ] [ 1 [ + ] '[ , @ . ] ] unit-test
+
+[ [ + - ] ] [ [ + ] [ - ] '[ @ @ ] ] unit-test
+
+[ [ "a" write "b" print ] ]
+[ "a" "b" '[ , write , print ] ] unit-test
+
+[ [ 1 2 + 3 4 - ] ]
+[ [ + ] [ - ] '[ 1 2 @ 3 4 @ ] ] unit-test
+
+[ 1/2 ] [
+    1 '[ , _ / ] 2 swap call
+] unit-test
+
+[ { { 1 "a" "A" } { 1 "b" "B" } { 1 "c" "C" } } ] [
+    1 '[ , _ _ 3array ]
+    { "a" "b" "c" } { "A" "B" "C" } rot 2map
+] unit-test
+
+[ { { 1 "a" } { 1 "b" } { 1 "c" } } ] [
+    '[ 1 _ 2array ]
+    { "a" "b" "c" } swap map
+] unit-test
+
+[ 1 2 ] [
+    1 2 '[ _ , ] call
+] unit-test
+
+[ { { 1 "a" 2 } { 1 "b" 2 } { 1 "c" 2 } } ] [
+    1 2 '[ , _ , 3array ]
+    { "a" "b" "c" } swap map
+] unit-test
+
+: funny-dip '[ @ _ ] call ; inline
+
+[ "hi" 3 ] [ "h" "i" 3 [ append ] funny-dip ] unit-test
+
+[ { 1 2 3 } ] [
+    3 1 '[ , [ , + ] map ] call
+] unit-test
+
+[ { 1 { 2 { 3 } } } ] [
+    1 2 3 '[ , [ , [ , 1array ] call 2array ] call 2array ] call
+] unit-test
+
+{ 1 1 } [ '[ [ [ , ] ] ] ] must-infer-as
+
+[ { { { 3 } } } ] [
+    3 '[ [ [ , 1array ] call 1array ] call 1array ] call
+] unit-test
+
+[ { { { 3 } } } ] [
+    3 '[ [ [ , 1array ] call 1array ] call 1array ] call
+] unit-test
+
+! [ 10 20 30 40 '[ , V{ , { , } } , ] ] [ [ 10 V{ 20 { 30 } } 40 ] ] unit-test*
+
+[ 10 20 30 40 '[ , V{ , { , } } , ] ]
+[ [ 10 20 30 >r r> 1 narray >r >r r> r> 2 narray >vector 40 ] ]
+unit-test*
+
+[ { 1 2 3 } { 4 5 6 } { 7 8 9 } '[ , { V{ @ } { , } } ] call ]
+[
+  { 1 2 3 }
+  { V{ 4 5 6 } { { 7 8 9 } } }
+]
+unit-test*
+
diff --git a/extra/bake/fry/fry.factor b/extra/bake/fry/fry.factor
new file mode 100644
index 0000000000..b9f9882e88
--- /dev/null
+++ b/extra/bake/fry/fry.factor
@@ -0,0 +1,80 @@
+
+USING: kernel combinators arrays vectors quotations sequences splitting
+       parser macros sequences.deep
+       combinators.short-circuit combinators.conditional bake newfx ;
+
+IN: bake.fry
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYMBOL: _
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+DEFER: (shallow-fry)
+DEFER: shallow-fry
+
+: ((shallow-fry)) ( accum quot adder -- result )
+  >r shallow-fry r>
+  append swap dup empty?
+    [ drop ]
+    [ [ prepose ] curry append ]
+  if ; inline
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: (shallow-fry) ( accum quot -- result )
+  dup empty?
+    [ drop 1quotation ]
+    [
+      unclip
+        {
+          { \ , [ [ curry   ] ((shallow-fry)) ] }
+          { \ @ [ [ compose ] ((shallow-fry)) ] }
+          [ swap >r suffix r> (shallow-fry) ]
+        }
+      case
+    ]
+  if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: shallow-fry ( quot -- quot' ) [ ] swap (shallow-fry) ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: deep-fry ( quot -- quot )
+  { _ } last-split1 dup
+    [
+      shallow-fry [ >r ] rot
+      deep-fry    [ [ dip ] curry r> compose ] 4array concat
+    ]
+    [ drop shallow-fry ]
+  if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: bakeable? ( obj -- ? ) { [ array? ] [ vector? ] } 1|| ;
+
+: fry-specifier? ( obj -- ? ) { , @ } member-of? ;
+
+: count-inputs ( quot -- n ) flatten [ fry-specifier? ] count ;
+
+: commas ( n -- seq ) , <repetition> ;
+
+: [fry] ( quot -- quot' )
+    [
+        {
+          { [ callable? ] [ [ count-inputs commas ] [ [fry]  ] bi append ] }
+          { [ bakeable? ] [ [ count-inputs commas ] [ [bake] ] bi append ] }
+          { [ drop t    ] [ 1quotation                                   ] }
+        }
+      1cond
+    ]
+  map concat deep-fry ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MACRO: fry ( seq -- quot ) [fry] ;
+
+: '[ \ ] [ >quotation ] parse-literal \ fry parsed ; parsing
\ No newline at end of file
diff --git a/extra/base64/base64-tests.factor b/extra/base64/base64-tests.factor
deleted file mode 100644
index d867351f8b..0000000000
--- a/extra/base64/base64-tests.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-USING: kernel tools.test base64 strings ;
-
-[ "abcdefghijklmnopqrstuvwxyz" ] [ "abcdefghijklmnopqrstuvwxyz" >base64 base64>
-] unit-test
-[ "" ] [ "" >base64 base64> ] unit-test
-[ "a" ] [ "a" >base64 base64> ] unit-test
-[ "ab" ] [ "ab" >base64 base64> ] unit-test
-[ "abc" ] [ "abc" >base64 base64> ] unit-test
diff --git a/extra/benchmark/backtrack/backtrack.factor b/extra/benchmark/backtrack/backtrack.factor
new file mode 100755
index 0000000000..df67872b11
--- /dev/null
+++ b/extra/benchmark/backtrack/backtrack.factor
@@ -0,0 +1,55 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: backtrack shuffle math math.ranges quotations locals fry
+kernel words io memoize macros io prettyprint sequences assocs
+combinators namespaces ;
+IN: benchmark.backtrack
+
+! This was suggested by Dr_Ford. Compute the number of quadruples
+! (a,b,c,d) with 1 <= a,b,c,d <= 10 such that we can make 24 by
+! placing them on the stack, and applying the operations
+! +, -, * and rot as many times as we wish.
+
+: nop ;
+
+: do-something ( a b -- c )
+    { + - * } amb-execute ;
+
+: some-rots ( a b c -- a b c )
+    #! Try to rot 0, 1 or 2 times.
+    { nop rot -rot } amb-execute ;
+
+MEMO: 24-from-1 ( a -- ? )
+    24 = ;
+
+MEMO: 24-from-2 ( a b -- ? )
+    [ do-something 24-from-1 ] [ 2drop ] if-amb ;
+
+MEMO: 24-from-3 ( a b c -- ? )
+    [ some-rots do-something 24-from-2 ] [ 3drop ] if-amb ;
+
+MEMO: 24-from-4 ( a b c d -- ? )
+    [ some-rots do-something 24-from-3 ] [ 4drop ] if-amb ;
+
+: find-impossible-24 ( -- n )
+    1 10 [a,b] [| a |
+        1 10 [a,b] [| b |
+            1 10 [a,b] [| c |
+                1 10 [a,b] [| d |
+                    a b c d 24-from-4
+                ] count
+            ] sigma
+        ] sigma
+    ] sigma ;
+
+: words { 24-from-1 24-from-2 24-from-3 24-from-4 } ;
+
+: backtrack-benchmark ( -- )
+    words [ reset-memoized ] each
+    find-impossible-24 pprint "/10000 quadruples can make 24." print
+    words [
+        dup pprint " tested " write "memoize" word-prop assoc-size pprint
+        " possibilities" print
+    ] each ;
+
+MAIN: backtrack-benchmark
diff --git a/extra/benchmark/base64/base64.factor b/extra/benchmark/base64/base64.factor
new file mode 100644
index 0000000000..f6e5f7ca39
--- /dev/null
+++ b/extra/benchmark/base64/base64.factor
@@ -0,0 +1,11 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math sequences kernel base64 ;
+IN: benchmark.base64
+
+: base64-benchmark ( -- )
+    65535 [ 255 bitand ] "" map-as
+    100 [ >base64 base64> ] times
+    drop ;
+
+MAIN: base64-benchmark
diff --git a/extra/benchmark/beust1/beust1.factor b/extra/benchmark/beust1/beust1.factor
new file mode 100644
index 0000000000..9849ac2dbe
--- /dev/null
+++ b/extra/benchmark/beust1/beust1.factor
@@ -0,0 +1,14 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math.ranges math.parser math.vectors sets sequences
+kernel io ;
+IN: benchmark.beust1
+
+: count-numbers ( max -- n )
+    1 [a,b] [ number>string all-unique? ] count ; inline
+
+: beust ( -- )
+    10000000 count-numbers
+    number>string " unique numbers." append print ;
+
+MAIN: beust
diff --git a/extra/benchmark/beust2/beust2.factor b/extra/benchmark/beust2/beust2.factor
new file mode 100644
index 0000000000..2ba6ed9775
--- /dev/null
+++ b/extra/benchmark/beust2/beust2.factor
@@ -0,0 +1,41 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math math.ranges math.parser sequences kernel io locals ;
+IN: benchmark.beust2
+
+! http://crazybob.org/BeustSequence.java.html
+
+:: (count-numbers) ( remaining first value used max listener: ( -- ) -- ? )
+    10 first - [| i |
+        [let* | digit [ i first + ]
+                mask [ digit 2^ ]
+                value' [ i value + ] |
+            used mask bitand zero? [
+                value max > [ t ] [
+                    remaining 1 <= [
+                        listener call f
+                    ] [
+                        remaining 1-
+                        0
+                        value' 10 *
+                        used mask bitor
+                        max
+                        listener
+                        (count-numbers)
+                    ] if
+                ] if
+            ] [ f ] if
+        ]
+    ] contains? ; inline recursive
+
+:: count-numbers ( max listener -- )
+    10 [ 1+ 1 1 0 max listener (count-numbers) ] contains? drop ;
+    inline
+
+:: beust ( -- )
+    [let | i! [ 0 ] |
+        10000000000 [ i 1+ i! ] count-numbers
+        i number>string " unique numbers." append print
+    ] ;
+
+MAIN: beust
diff --git a/extra/benchmark/binary-search/binary-search.factor b/extra/benchmark/binary-search/binary-search.factor
new file mode 100644
index 0000000000..1018e643ef
--- /dev/null
+++ b/extra/benchmark/binary-search/binary-search.factor
@@ -0,0 +1,10 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: binary-search math.primes.list math.ranges sequences
+prettyprint ;
+IN: benchmark.binary-search
+
+: binary-search-benchmark ( -- )
+    1 1000000 [a,b] [ primes-under-million sorted-member? ] map length . ;
+
+MAIN: binary-search-benchmark
diff --git a/extra/benchmark/binary-trees/binary-trees.factor b/extra/benchmark/binary-trees/binary-trees.factor
index bd3d460961..f562072f28 100644
--- a/extra/benchmark/binary-trees/binary-trees.factor
+++ b/extra/benchmark/binary-trees/binary-trees.factor
@@ -14,7 +14,7 @@ C: <tree-node> tree-node
         [ >r 2 *     r> bottom-up-tree ] 2tri
     ] [
         drop f f
-    ] if <tree-node> ;
+    ] if <tree-node> ; inline recursive
 
 GENERIC: item-check ( node -- n )
 
@@ -28,7 +28,7 @@ M: f item-check drop 0 ;
 : stretch-tree ( max-depth -- )
     1 + 0 over bottom-up-tree item-check
     [ "stretch tree of depth " write pprint ]
-    [ "\t check: " write . ] bi* ;
+    [ "\t check: " write . ] bi* ; inline
 
 :: long-lived-tree ( max-depth -- )
     0 max-depth bottom-up-tree
@@ -46,10 +46,10 @@ M: f item-check drop 0 ;
     ] each
 
     "long lived tree of depth " write max-depth pprint
-    "\t check: " write item-check . ;
+    "\t check: " write item-check . ; inline
 
 : binary-trees ( n -- )
-    min-depth 2 + max [ stretch-tree ] [ long-lived-tree ] bi ;
+    min-depth 2 + max [ stretch-tree ] [ long-lived-tree ] bi ; inline
 
 : binary-trees-main ( -- )
     16 binary-trees ;
diff --git a/extra/benchmark/continuations/continuations.factor b/extra/benchmark/continuations/continuations.factor
index 376a75b9a3..4e113d86d3 100644
--- a/extra/benchmark/continuations/continuations.factor
+++ b/extra/benchmark/continuations/continuations.factor
@@ -1,7 +1,7 @@
 USING: math kernel continuations ;
 IN: benchmark.continuations
 
-: continuations-main
+: continuations-main ( -- )
     100000 [ drop [ continue ] callcc0 ] each-integer ;
 
 MAIN: continuations-main
diff --git a/extra/benchmark/dawes/dawes.factor b/extra/benchmark/dawes/dawes.factor
new file mode 100644
index 0000000000..7cff06d1bc
--- /dev/null
+++ b/extra/benchmark/dawes/dawes.factor
@@ -0,0 +1,21 @@
+USING: sequences alien.c-types math hints kernel byte-arrays ;
+IN: benchmark.dawes
+
+! Phil Dawes's performance problem
+
+: int-length ( byte-array -- n ) length "int" heap-size /i ; inline
+
+: count-ones ( byte-array -- n )
+    0 swap [ int-length ] keep [
+        int-nth 1 = [ 1 + ] when
+    ] curry each-integer ;
+
+HINTS: count-ones byte-array ;
+
+: make-byte-array ( -- byte-array )
+    120000 [ 255 bitand ] map >c-int-array ;
+
+: dawes-benchmark ( -- )
+    make-byte-array 200 swap [ count-ones ] curry replicate drop ;
+
+MAIN: dawes-benchmark
diff --git a/extra/benchmark/dispatch1/dispatch1.factor b/extra/benchmark/dispatch1/dispatch1.factor
index 1c8701f73f..430162892d 100644
--- a/extra/benchmark/dispatch1/dispatch1.factor
+++ b/extra/benchmark/dispatch1/dispatch1.factor
@@ -1,4 +1,4 @@
-USING: classes kernel sequences vocabs math ;
+USING: classes classes.tuple kernel sequences vocabs math ;
 IN: benchmark.dispatch1
 
 GENERIC: g ( obj -- obj )
diff --git a/extra/benchmark/dispatch2/dispatch2.factor b/extra/benchmark/dispatch2/dispatch2.factor
index 53e9c9a14c..7145cd94f7 100644
--- a/extra/benchmark/dispatch2/dispatch2.factor
+++ b/extra/benchmark/dispatch2/dispatch2.factor
@@ -1,7 +1,8 @@
-USING: namespaces math sequences splitting kernel columns ;
+USING: namespaces math sequences splitting grouping
+kernel columns float-arrays bit-arrays ;
 IN: benchmark.dispatch2
 
-: sequences
+: sequences ( -- seq )
     [
         1 ,
         10 >bignum ,
@@ -21,9 +22,9 @@ IN: benchmark.dispatch2
         1 [ + ] curry ,
     ] { } make ;
 
-: don't-flush-me drop ;
+: don't-flush-me ( obj -- ) drop ;
 
-: dispatch-test
+: dispatch-test ( -- )
     1000000 sequences
     [ [ 0 swap nth don't-flush-me ] each ] curry times ;
 
diff --git a/extra/benchmark/dispatch3/dispatch3.factor b/extra/benchmark/dispatch3/dispatch3.factor
index 409d6d4a0f..d780980941 100644
--- a/extra/benchmark/dispatch3/dispatch3.factor
+++ b/extra/benchmark/dispatch3/dispatch3.factor
@@ -1,5 +1,6 @@
-USING: sequences math mirrors splitting kernel namespaces
-assocs alien.syntax columns ;
+USING: sequences math mirrors splitting grouping
+kernel namespaces assocs alien.syntax columns
+float-arrays bit-arrays ;
 IN: benchmark.dispatch3
 
 GENERIC: g ( obj -- str )
@@ -14,7 +15,7 @@ M: number g drop "number" ;
 
 M: object g drop "object" ;
 
-: objects
+: objects ( -- seq )
     [
         H{ } ,
         \ + <mirror> ,
@@ -42,7 +43,7 @@ M: object g drop "object" ;
         ALIEN: 1234 ,
     ] { } make ;
 
-: dispatch-test
+: dispatch-test ( -- )
     2000000 objects [ [ g drop ] each ] curry times ;
 
 MAIN: dispatch-test
diff --git a/extra/benchmark/dispatch4/dispatch4.factor b/extra/benchmark/dispatch4/dispatch4.factor
index a92772a923..2f989b7723 100755
--- a/extra/benchmark/dispatch4/dispatch4.factor
+++ b/extra/benchmark/dispatch4/dispatch4.factor
@@ -2,7 +2,7 @@ USING: kernel.private kernel sequences math combinators
 sequences.private ;
 IN: benchmark.dispatch4
 
-: foobar-1
+: foobar-1 ( n -- val )
     dup {
         [ 0 eq? [ 0 ] [ "x" ] if ]
         [ 1 eq? [ 1 ] [ "x" ] if ]
@@ -26,7 +26,7 @@ IN: benchmark.dispatch4
         [ 19 eq? [ 19 ] [ "x" ] if ]
     } dispatch ;
 
-: foobar-2
+: foobar-2 ( n -- val )
     {
         { [ dup 0 eq? ] [ drop 0 ] }
         { [ dup 1 eq? ] [ drop 1 ] }
@@ -50,14 +50,14 @@ IN: benchmark.dispatch4
         { [ dup 19 eq? ] [ drop 19 ] }
     } cond ;
 
-: foobar-test-1
+: foobar-test-1 ( -- )
     20000000 [
         20 [
             foobar-1 drop
         ] each
     ] times ;
 
-: foobar-test-2
+: foobar-test-2 ( -- )
     20000000 [
         20 [
             foobar-2 drop
diff --git a/extra/benchmark/dispatch5/dispatch5.factor b/extra/benchmark/dispatch5/dispatch5.factor
index 727d288765..8b6bd76f3a 100755
--- a/extra/benchmark/dispatch5/dispatch5.factor
+++ b/extra/benchmark/dispatch5/dispatch5.factor
@@ -1,4 +1,4 @@
-USING: classes kernel sequences vocabs math ;
+USING: classes classes.tuple kernel sequences vocabs math ;
 IN: benchmark.dispatch5
 
 MIXIN: g
diff --git a/extra/benchmark/empty-loop-0/empty-loop-0.factor b/extra/benchmark/empty-loop-0/empty-loop-0.factor
new file mode 100644
index 0000000000..1922274cac
--- /dev/null
+++ b/extra/benchmark/empty-loop-0/empty-loop-0.factor
@@ -0,0 +1,10 @@
+USING: math math.private kernel sequences ;
+IN: benchmark.empty-loop-0
+
+: empty-loop-0 ( n -- )
+    dup 0 fixnum< [ drop ] [ 1 fixnum-fast empty-loop-0 ] if ;
+
+: empty-loop-main ( -- )
+    50000000 empty-loop-0 ;
+
+MAIN: empty-loop-main
diff --git a/extra/benchmark/empty-loop-1/empty-loop-1.factor b/extra/benchmark/empty-loop-1/empty-loop-1.factor
new file mode 100644
index 0000000000..16303b4b4d
--- /dev/null
+++ b/extra/benchmark/empty-loop-1/empty-loop-1.factor
@@ -0,0 +1,10 @@
+USING: math math.private kernel sequences ;
+IN: benchmark.empty-loop-1
+
+: empty-loop-1 ( n -- )
+    [ drop ] each-integer ;
+
+: empty-loop-main ( -- )
+    50000000 empty-loop-1 ;
+
+MAIN: empty-loop-main
diff --git a/extra/benchmark/empty-loop-2/empty-loop-2.factor b/extra/benchmark/empty-loop-2/empty-loop-2.factor
new file mode 100644
index 0000000000..f09aee6ada
--- /dev/null
+++ b/extra/benchmark/empty-loop-2/empty-loop-2.factor
@@ -0,0 +1,10 @@
+USING: math math.private kernel sequences ;
+IN: benchmark.empty-loop-2
+
+: empty-loop-2 ( n -- )
+    [ drop ] each ;
+
+: empty-loop-main ( -- )
+    50000000 empty-loop-2 ;
+
+MAIN: empty-loop-main
diff --git a/extra/benchmark/empty-loop/empty-loop.factor b/extra/benchmark/empty-loop/empty-loop.factor
deleted file mode 100644
index 2f9f4f3c94..0000000000
--- a/extra/benchmark/empty-loop/empty-loop.factor
+++ /dev/null
@@ -1,18 +0,0 @@
-USING: math math.private kernel sequences ;
-IN: benchmark.empty-loop
-
-: empty-loop-0 ( n -- )
-    dup 0 fixnum< [ drop ] [ 1 fixnum-fast empty-loop-0 ] if ;
-
-: empty-loop-1 ( n -- )
-    [ drop ] each-integer ;
-
-: empty-loop-2 ( n -- )
-    [ drop ] each ;
-
-: empty-loop-main ( -- )
-    5000000 empty-loop-0
-    5000000 empty-loop-1
-    5000000 empty-loop-2 ;
-
-MAIN: empty-loop-main
diff --git a/extra/benchmark/euler150/euler150.factor b/extra/benchmark/euler150/euler150.factor
new file mode 100644
index 0000000000..448c8575f9
--- /dev/null
+++ b/extra/benchmark/euler150/euler150.factor
@@ -0,0 +1,7 @@
+IN: benchmark.euler150
+USING: kernel project-euler.150 ;
+
+: euler150-benchmark ( -- )
+    euler150 -271248680 assert= ;
+
+MAIN: euler150-benchmark
diff --git a/extra/benchmark/euler186/euler186.factor b/extra/benchmark/euler186/euler186.factor
new file mode 100644
index 0000000000..681ca0e269
--- /dev/null
+++ b/extra/benchmark/euler186/euler186.factor
@@ -0,0 +1,7 @@
+IN: benchmark.euler186
+USING: kernel project-euler.186 ;
+
+: euler186-benchmark ( -- )
+    euler186 2325629 assert= ;
+
+MAIN: euler186-benchmark
diff --git a/extra/benchmark/fasta/fasta.factor b/extra/benchmark/fasta/fasta.factor
index d449c0fc5b..015f762c7b 100755
--- a/extra/benchmark/fasta/fasta.factor
+++ b/extra/benchmark/fasta/fasta.factor
@@ -105,6 +105,6 @@ HINTS: random fixnum ;
 
     ] ;
 
-: run-fasta 2500000 reverse-complement-in fasta ;
+: run-fasta ( -- ) 2500000 reverse-complement-in fasta ;
 
 MAIN: run-fasta
diff --git a/extra/benchmark/fib1/fib1.factor b/extra/benchmark/fib1/fib1.factor
index ad7fb0e7e1..20f18032f0 100644
--- a/extra/benchmark/fib1/fib1.factor
+++ b/extra/benchmark/fib1/fib1.factor
@@ -9,6 +9,6 @@ IN: benchmark.fib1
         swap 1 fixnum-fast fast-fixnum-fib fixnum+fast
     ] if ;
 
-: fib-main 34 fast-fixnum-fib 9227465 assert= ;
+: fib-main ( -- ) 34 fast-fixnum-fib 9227465 assert= ;
 
 MAIN: fib-main
diff --git a/extra/benchmark/fib2/fib2.factor b/extra/benchmark/fib2/fib2.factor
index bedfedf6b0..043a98f394 100644
--- a/extra/benchmark/fib2/fib2.factor
+++ b/extra/benchmark/fib2/fib2.factor
@@ -8,6 +8,6 @@ IN: benchmark.fib2
         1 fixnum- dup fixnum-fib swap 1 fixnum- fixnum-fib fixnum+
     ] if ;
 
-: fib-main 34 fixnum-fib 9227465 assert= ;
+: fib-main ( -- ) 34 fixnum-fib 9227465 assert= ;
 
 MAIN: fib-main
diff --git a/extra/benchmark/fib3/fib3.factor b/extra/benchmark/fib3/fib3.factor
index c2b86f6bfa..13eaef8e0c 100644
--- a/extra/benchmark/fib3/fib3.factor
+++ b/extra/benchmark/fib3/fib3.factor
@@ -4,6 +4,6 @@ IN: benchmark.fib3
 : fib ( m -- n )
     dup 1 <= [ drop 1 ] [ dup 1 - fib swap 2 - fib + ] if ;
 
-: fib-main 34 fib 9227465 assert= ;
+: fib-main ( -- ) 34 fib 9227465 assert= ;
 
 MAIN: fib-main
diff --git a/extra/benchmark/fib4/fib4.factor b/extra/benchmark/fib4/fib4.factor
index a6415fb50f..c988e5722e 100644
--- a/extra/benchmark/fib4/fib4.factor
+++ b/extra/benchmark/fib4/fib4.factor
@@ -1,22 +1,22 @@
-USING: math kernel debugger ;
+USING: accessors math kernel debugger ;
 IN: benchmark.fib4
 
-TUPLE: box i ;
+TUPLE: box { i read-only } ;
 
 C: <box> box
 
 : tuple-fib ( m -- n )
-    dup box-i 1 <= [
+    dup i>> 1 <= [
         drop 1 <box>
     ] [
-        box-i 1- <box>
+        i>> 1- <box>
         dup tuple-fib
         swap
-        box-i 1- <box>
+        i>> 1- <box>
         tuple-fib
-        swap box-i swap box-i + <box>
-    ] if ;
+        swap i>> swap i>> + <box>
+    ] if ; inline recursive
 
-: fib-main T{ box f 34 } tuple-fib T{ box f 9227465 } assert= ;
+: fib-main ( -- ) T{ box f 34 } tuple-fib i>> 9227465 assert= ;
 
 MAIN: fib-main
diff --git a/extra/benchmark/fib5/fib5.factor b/extra/benchmark/fib5/fib5.factor
index 6f4765af7b..7b33a5b2b4 100644
--- a/extra/benchmark/fib5/fib5.factor
+++ b/extra/benchmark/fib5/fib5.factor
@@ -14,6 +14,6 @@ SYMBOL: n
         ] if
     ] with-scope ;
 
-: fib-main 30 namespace-fib 1346269 assert= ;
+: fib-main ( -- ) 30 namespace-fib 1346269 assert= ;
 
 MAIN: fib-main
diff --git a/extra/benchmark/fib6/fib6.factor b/extra/benchmark/fib6/fib6.factor
index cc42028df6..594b451876 100755
--- a/extra/benchmark/fib6/fib6.factor
+++ b/extra/benchmark/fib6/fib6.factor
@@ -1,7 +1,7 @@
 IN: benchmark.fib6
 USING: math kernel alien ;
 
-: fib
+: fib ( x -- y )
     "int" { "int" } "cdecl" [
         dup 1 <= [ drop 1 ] [
             1- dup fib swap 1- fib +
@@ -9,6 +9,6 @@ USING: math kernel alien ;
     ] alien-callback
     "int" { "int" } "cdecl" alien-indirect ;
 
-: fib-main 25 fib drop ;
+: fib-main ( -- ) 25 fib drop ;
 
 MAIN: fib-main
diff --git a/extra/benchmark/iteration/iteration.factor b/extra/benchmark/iteration/iteration.factor
index 61c22d5a29..f49d21d5a3 100644
--- a/extra/benchmark/iteration/iteration.factor
+++ b/extra/benchmark/iteration/iteration.factor
@@ -4,14 +4,14 @@ kernel ;
 
 : <range> ( from to -- seq ) dup <slice> ; inline
 
-: vector-iter 100 [ 0 100000 <range> >vector [ ] map drop ] times ;
-: array-iter 100 [ 0 100000 <range> >array [ ] map drop ] times ;
-: string-iter 100 [ 0 100000 <range> >string [ ] map drop ] times ;
-: sbuf-iter 100 [ 0 100000 <range> >sbuf [ ] map drop ] times ;
-: reverse-iter 100 [ 0 100000 <range> >vector <reversed> [ ] map drop ] times ;
-: dot-iter 100 [ 0 100000 <range> dup v. drop ] times ;
+: vector-iter ( -- ) 100 [ 0 100000 <range> >vector [ ] map drop ] times ;
+: array-iter ( -- ) 100 [ 0 100000 <range> >array [ ] map drop ] times ;
+: string-iter ( -- ) 100 [ 0 100000 <range> >string [ ] map drop ] times ;
+: sbuf-iter ( -- ) 100 [ 0 100000 <range> >sbuf [ ] map drop ] times ;
+: reverse-iter ( -- ) 100 [ 0 100000 <range> >vector <reversed> [ ] map drop ] times ;
+: dot-iter ( -- ) 100 [ 0 100000 <range> dup v. drop ] times ;
 
-: iter-main
+: iter-main ( -- )
     vector-iter
     array-iter
     string-iter
diff --git a/extra/benchmark/mandel/colors/colors.factor b/extra/benchmark/mandel/colors/colors.factor
new file mode 100644
index 0000000000..848fbae01e
--- /dev/null
+++ b/extra/benchmark/mandel/colors/colors.factor
@@ -0,0 +1,19 @@
+USING: math math.order kernel arrays byte-arrays sequences
+colors.hsv benchmark.mandel.params ;
+IN: benchmark.mandel.colors
+
+: scale 255 * >fixnum ; inline
+
+: scale-rgb ( r g b -- n ) [ scale ] tri@ 3byte-array ;
+
+: sat 0.85 ; inline
+: val 0.85 ; inline
+
+: <color-map> ( nb-cols -- map )
+    dup [
+        360 * swap 1+ / sat val
+        3array hsv>rgb first3 scale-rgb
+    ] with map ;
+
+: color-map ( -- map )
+    nb-iter max-color min <color-map> ; foldable
diff --git a/extra/benchmark/mandel/mandel.factor b/extra/benchmark/mandel/mandel.factor
index b9b139d7e3..a40b123ed3 100755
--- a/extra/benchmark/mandel/mandel.factor
+++ b/extra/benchmark/mandel/mandel.factor
@@ -1,69 +1,45 @@
+USING: arrays io kernel math math.functions math.order
+math.parser sequences locals byte-arrays byte-vectors io.files
+io.encodings.binary benchmark.mandel.params
+benchmark.mandel.colors ;
 IN: benchmark.mandel
-USING: arrays io kernel math math.order namespaces sequences
-byte-arrays byte-vectors math.functions math.parser io.files
-colors.hsv io.encodings.binary ;
-
-: max-color 360 ; inline
-: zoom-fact 0.8 ; inline
-: width 640 ; inline
-: height 480 ; inline
-: nb-iter 40 ; inline
-: center -0.65 ; inline
-
-: scale 255 * >fixnum ; inline
-
-: scale-rgb ( r g b -- n )
-    rot scale rot scale rot scale 3array ;
-
-: sat 0.85 ; inline
-: val 0.85 ; inline
-
-: <color-map> ( nb-cols -- map )
-    dup [
-        360 * swap 1+ / sat val
-        3array hsv>rgb first3 scale-rgb
-    ] with map ;
 
 : iter ( c z nb-iter -- x )
-    over absq 4.0 >= over zero? or
-    [ 2nip ] [ 1- >r sq dupd + r> iter ] if ; inline
+    dup 0 <= [ 2nip ] [
+        over absq 4.0 >= [ 2nip ] [
+            >r sq dupd + r> 1- iter
+        ] if
+    ] if ; inline recursive
 
-SYMBOL: cols
-
-: x-inc width 200000 zoom-fact * / ; inline
+: x-inc width  200000 zoom-fact * / ; inline
 : y-inc height 150000 zoom-fact * / ; inline
 
 : c ( i j -- c )
-    >r
-    x-inc * center real-part x-inc width 2 / * - + >float
-    r>
-    y-inc * center imaginary-part y-inc height 2 / * - + >float
+    [ x-inc * center real-part x-inc width 2 / * - + >float ]
+    [ y-inc * center imaginary-part y-inc height 2 / * - + >float ] bi*
     rect> ; inline
 
-: render ( -- )
+:: render ( accum -- )
     height [
         width swap [
-            c 0 nb-iter iter dup zero? [
-                drop "\0\0\0"
-            ] [
-                cols get [ length mod ] keep nth
-            ] if %
+            c C{ 0.0 0.0 } nb-iter iter dup zero?
+            [ drop B{ 0 0 0 } ] [ color-map [ length mod ] keep nth ] if
+            accum push-all
         ] curry each
-    ] each ;
+    ] each ; inline
 
-: ppm-header ( w h -- )
-    "P6\n" % swap # " " % # "\n255\n" % ;
+:: ppm-header ( accum -- )
+    "P6\n" accum push-all
+    width number>string accum push-all
+    " " accum push-all
+    height number>string accum push-all
+    "\n255\n" accum push-all ; inline
 
-: buf-size width height * 3 * 100 + ;
+: buf-size ( -- n ) width height * 3 * 100 + ; inline
 
 : mandel ( -- data )
-    [
-        buf-size <byte-vector> building set
-        width height ppm-header
-        nb-iter max-color min <color-map> cols set
-        render
-        building get >byte-array
-    ] with-scope ;
+    buf-size <byte-vector>
+    [ ppm-header ] [ render ] [ B{ } like ] tri ;
 
 : mandel-main ( -- )
     mandel "mandel.ppm" temp-file binary set-file-contents ;
diff --git a/extra/benchmark/mandel/params/params.factor b/extra/benchmark/mandel/params/params.factor
new file mode 100644
index 0000000000..3fcfe1d3ef
--- /dev/null
+++ b/extra/benchmark/mandel/params/params.factor
@@ -0,0 +1,8 @@
+IN: benchmark.mandel.params
+
+: max-color 360   ; inline
+: zoom-fact 0.8   ; inline
+: width     640   ; inline
+: height    480   ; inline
+: nb-iter   40    ; inline
+: center    -0.65 ; inline
diff --git a/extra/benchmark/nested-empty-loop-1/nested-empty-loop-1.factor b/extra/benchmark/nested-empty-loop-1/nested-empty-loop-1.factor
new file mode 100644
index 0000000000..a7dafeebca
--- /dev/null
+++ b/extra/benchmark/nested-empty-loop-1/nested-empty-loop-1.factor
@@ -0,0 +1,29 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math locals hints ;
+IN: benchmark.nested-empty-loop-1
+
+:: nested-empty-loop ( n -- )
+    n [
+        n [
+            n [
+                n [
+                    n [
+                        n [
+                            n [
+                                n [
+                                    n [ ] times
+                                ] times
+                            ] times
+                        ] times
+                    ] times
+                ] times
+            ] times
+        ] times
+    ] times ;
+
+HINTS: nested-empty-loop fixnum ;
+
+: nested-empty-loop-main ( -- ) 7 nested-empty-loop ;
+
+MAIN: nested-empty-loop-main
diff --git a/extra/benchmark/nested-empty-loop-2/nested-empty-loop-2.factor b/extra/benchmark/nested-empty-loop-2/nested-empty-loop-2.factor
new file mode 100644
index 0000000000..5498067f6f
--- /dev/null
+++ b/extra/benchmark/nested-empty-loop-2/nested-empty-loop-2.factor
@@ -0,0 +1,31 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math math.ranges sequences locals hints ;
+IN: benchmark.nested-empty-loop-2
+
+: times ( seq quot -- ) [ drop ] prepose each ; inline
+
+:: nested-empty-loop ( n -- )
+    1 n [a,b] [
+        1 n [a,b] [
+            1 n [a,b] [
+                1 n [a,b] [
+                    1 n [a,b] [
+                        1 n [a,b] [
+                            1 n [a,b] [
+                                1 n [a,b] [
+                                    1 n [a,b] [ ] times
+                                ] times
+                            ] times
+                        ] times
+                    ] times
+                ] times
+            ] times
+        ] times
+    ] times ;
+
+HINTS: nested-empty-loop fixnum ;
+
+: nested-empty-loop-main ( -- ) 7 nested-empty-loop ;
+
+MAIN: nested-empty-loop-main
diff --git a/extra/benchmark/nsieve-bits/nsieve-bits.factor b/extra/benchmark/nsieve-bits/nsieve-bits.factor
index fe70246cb5..4970b018da 100644
--- a/extra/benchmark/nsieve-bits/nsieve-bits.factor
+++ b/extra/benchmark/nsieve-bits/nsieve-bits.factor
@@ -7,7 +7,7 @@ bit-arrays namespaces io ;
         3drop
     ] [
         f 2over set-nth-unsafe >r over + r> clear-flags
-    ] if ; inline
+    ] if ; inline recursive
 
 : (nsieve-bits) ( count i seq -- count )
     2dup length < [
@@ -17,7 +17,7 @@ bit-arrays namespaces io ;
         ] when >r 1+ r> (nsieve-bits)
     ] [
         2drop
-    ] if ; inline
+    ] if ; inline recursive
 
 : nsieve-bits ( m -- count )
     0 2 rot 1+ <bit-array> dup set-bits (nsieve-bits) ;
@@ -31,6 +31,6 @@ bit-arrays namespaces io ;
     dup 1- 2^ 10000 * nsieve-bits.
     2 - 2^ 10000 * nsieve-bits. ;
 
-: nsieve-bits-main* 11 nsieve-bits-main ;
+: nsieve-bits-main* ( -- ) 11 nsieve-bits-main ;
 
 MAIN: nsieve-bits-main*
diff --git a/extra/benchmark/nsieve/nsieve.factor b/extra/benchmark/nsieve/nsieve.factor
index 7cae1e2a9b..dd46962322 100644
--- a/extra/benchmark/nsieve/nsieve.factor
+++ b/extra/benchmark/nsieve/nsieve.factor
@@ -7,7 +7,7 @@ arrays namespaces io ;
         3drop
     ] [
         f 2over set-nth-unsafe >r over + r> clear-flags
-    ] if ; inline
+    ] if ; inline recursive
 
 : (nsieve) ( count i seq -- count )
     2dup length < [
@@ -17,7 +17,7 @@ arrays namespaces io ;
         ] when >r 1+ r> (nsieve)
     ] [
         2drop
-    ] if ; inline
+    ] if ; inline recursive
 
 : nsieve ( m -- count )
     0 2 rot 1+ t <array> (nsieve) ;
@@ -30,6 +30,6 @@ arrays namespaces io ;
     dup 1 - 2^ 10000 * nsieve.
     2 - 2^ 10000 * nsieve. ;
 
-: nsieve-main* 9 nsieve-main ;
+: nsieve-main* ( -- ) 9 nsieve-main ;
 
 MAIN: nsieve-main*
diff --git a/extra/benchmark/partial-sums/partial-sums.factor b/extra/benchmark/partial-sums/partial-sums.factor
index 8eb883241b..2d8cdc40c7 100644
--- a/extra/benchmark/partial-sums/partial-sums.factor
+++ b/extra/benchmark/partial-sums/partial-sums.factor
@@ -58,6 +58,6 @@ HINTS: gregory fixnum ;
         ] with each
     ] tabular-output ;
 
-: partial-sums-main 2500000 partial-sums ;
+: partial-sums-main ( -- ) 2500000 partial-sums ;
 
 MAIN: partial-sums-main
diff --git a/extra/benchmark/random/random.factor b/extra/benchmark/random/random.factor
index 775595709a..985c9a59b2 100755
--- a/extra/benchmark/random/random.factor
+++ b/extra/benchmark/random/random.factor
@@ -1,7 +1,8 @@
 USING: io.files io.encodings.ascii random math.parser io math ;
 IN: benchmark.random
 
-: random-numbers-path "random-numbers.txt" temp-file ;
+: random-numbers-path ( -- path )
+    "random-numbers.txt" temp-file ;
 
 : write-random-numbers ( n -- )
     random-numbers-path ascii [
diff --git a/extra/benchmark/raytracer/raytracer.factor b/extra/benchmark/raytracer/raytracer.factor
index 3ec8cb4245..d22f339ed4 100755
--- a/extra/benchmark/raytracer/raytracer.factor
+++ b/extra/benchmark/raytracer/raytracer.factor
@@ -1,9 +1,9 @@
 ! Factor port of the raytracer benchmark from
 ! http://www.ffconsultancy.com/free/ray_tracer/languages.html
 
-USING: float-arrays compiler generic io io.files kernel math
-math.functions math.vectors math.parser namespaces sequences
-sequences.private words io.encodings.binary ;
+USING: arrays accessors float-arrays io io.files
+io.encodings.binary kernel math math.functions math.vectors
+math.parser namespaces sequences sequences.private words ;
 IN: benchmark.raytracer
 
 ! parameters
@@ -23,32 +23,33 @@ IN: benchmark.raytracer
 
 : delta 1.4901161193847656E-8 ; inline
 
-TUPLE: ray orig dir ;
+TUPLE: ray { orig float-array read-only } { dir float-array read-only } ;
 
 C: <ray> ray
 
-TUPLE: hit normal lambda ;
+TUPLE: hit { normal float-array read-only } { lambda float read-only } ;
 
 C: <hit> hit
 
 GENERIC: intersect-scene ( hit ray scene -- hit )
 
-TUPLE: sphere center radius ;
+TUPLE: sphere { center float-array read-only } { radius float read-only } ;
 
 C: <sphere> sphere
 
 : sphere-v ( sphere ray -- v )
-    swap sphere-center swap ray-orig v- ; inline
+    swap center>> swap orig>> v- ; inline
 
-: sphere-b ( ray v -- b ) swap ray-dir v. ; inline
+: sphere-b ( ray v -- b ) swap dir>> v. ; inline
 
 : sphere-disc ( sphere v b -- d )
-    sq swap norm-sq - swap sphere-radius sq + ; inline
+    sq swap norm-sq - swap radius>> sq + ; inline
 
 : -+ ( x y -- x-y x+y ) [ - ] 2keep + ; inline
 
 : sphere-b/d ( b d -- t )
-    -+ dup 0.0 < [ 2drop 1.0/0.0 ] [ >r [ 0.0 > ] keep r> ? ] if ; inline
+    -+ dup 0.0 <
+    [ 2drop 1.0/0.0 ] [ [ [ 0.0 > ] keep ] dip ? ] if ; inline
 
 : ray-sphere ( sphere ray -- t )
     2dup sphere-v tuck sphere-b [ sphere-disc ] keep
@@ -56,29 +57,31 @@ C: <sphere> sphere
     inline
 
 : sphere-n ( ray sphere l -- n )
-    pick ray-dir n*v swap sphere-center v- swap ray-orig v+ ;
+    pick dir>> n*v swap center>> v- swap orig>> v+ ;
     inline
 
 : if-ray-sphere ( hit ray sphere quot -- hit )
     #! quot: hit ray sphere l -- hit
-    >r pick hit-lambda >r 2dup swap ray-sphere dup r> >=
-    [ 3drop ] r> if ; inline
+    [
+        pick lambda>> [ 2dup swap ray-sphere dup ] dip >=
+        [ 3drop ]
+    ] dip if ; inline
 
 M: sphere intersect-scene ( hit ray sphere -- hit )
     [ [ sphere-n normalize ] keep <hit> nip ] if-ray-sphere ;
 
-TUPLE: group objs ;
+TUPLE: group < sphere { objs array read-only } ;
 
 : <group> ( objs bound -- group )
-    { set-group-objs set-delegate } group construct ;
+    [ center>> ] [ radius>> ] bi rot group boa ; inline
 
 : make-group ( bound quot -- )
-    swap >r { } make r> <group> ; inline
+    swap [ { } make ] dip <group> ; inline
 
 M: group intersect-scene ( hit ray group -- hit )
     [
         drop
-        group-objs [ >r tuck r> intersect-scene swap ] each
+        objs>> [ [ tuck ] dip intersect-scene swap ] each
         drop
     ] if-ray-sphere ;
 
@@ -88,30 +91,30 @@ M: group intersect-scene ( hit ray group -- hit )
     initial-hit -rot intersect-scene ; inline
 
 : ray-o ( ray hit -- o )
-    over ray-dir over hit-lambda v*n
-    swap hit-normal delta v*n v+
-    swap ray-orig v+ ; inline
+    over dir>> over lambda>> v*n
+    swap normal>> delta v*n v+
+    swap orig>> v+ ; inline
 
 : sray-intersect ( ray scene hit -- ray )
-    swap >r ray-o light vneg <ray> r> initial-intersect ; inline
+    swap [ ray-o light vneg <ray> ] dip initial-intersect ; inline
 
-: ray-g ( hit -- g ) hit-normal light v. ; inline
+: ray-g ( hit -- g ) normal>> light v. ; inline
 
 : cast-ray ( ray scene -- g )
-    2dup initial-intersect dup hit-lambda 1.0/0.0 = [
+    2dup initial-intersect dup lambda>> 1.0/0.0 = [
         3drop 0.0
     ] [
-        dup ray-g >r sray-intersect hit-lambda 1.0/0.0 =
-        [ r> neg ] [ r> drop 0.0 ] if
+        [ sray-intersect lambda>> 1.0/0.0 = ] keep swap
+        [ ray-g neg ] [ drop 0.0 ] if
     ] if ; inline
 
 : create-center ( c r d -- c2 )
-    >r 3.0 12.0 sqrt / * r> n*v v+ ; inline
+    [ 3.0 12.0 sqrt / * ] dip n*v v+ ; inline
 
 DEFER: create ( level c r -- scene )
 
 : create-step ( level c r d -- scene )
-    over >r create-center r> 2.0 / >r >r 1 - r> r> create ;
+    over [ create-center ] dip 2.0 / [ 1 - ] 2dip create ;
 
 : create-offsets ( quot -- )
     {
@@ -126,7 +129,7 @@ DEFER: create ( level c r -- scene )
 : create-group ( level c r -- scene )
     2dup create-bound [
         2dup <sphere> ,
-        [ >r 3dup r> create-step , ] create-offsets 3drop
+        [ [ 3dup ] dip create-step , ] create-offsets 3drop
     ] make-group ;
 
 : create ( level c r -- scene )
@@ -140,7 +143,7 @@ DEFER: create ( level c r -- scene )
 
 : ray-grid ( point ss-grid -- ray-grid )
     [
-        [ v+ normalize { 0.0 0.0 -4.0 } swap <ray> ] with map
+        [ v+ normalize F{ 0.0 0.0 -4.0 } swap <ray> ] with map
     ] with map ;
 
 : ray-pixel ( scene point -- n )
@@ -164,12 +167,12 @@ DEFER: create ( level c r -- scene )
     pixel-grid [ [ ray-pixel ] with map ] with map ;
 
 : run ( -- string )
-    levels { 0.0 -1.0 0.0 } 1.0 create ray-trace [
+    levels F{ 0.0 -1.0 0.0 } 1.0 create ray-trace [
         size size pgm-header
         [ [ oversampling sq / pgm-pixel ] each ] each
     ] B{ } make ;
 
-: raytracer-main
+: raytracer-main ( -- )
     run "raytracer.pnm" temp-file binary set-file-contents ;
 
 MAIN: raytracer-main
diff --git a/extra/benchmark/recursive/recursive.factor b/extra/benchmark/recursive/recursive.factor
index f69547df60..128ec571f2 100755
--- a/extra/benchmark/recursive/recursive.factor
+++ b/extra/benchmark/recursive/recursive.factor
@@ -3,14 +3,14 @@ IN: benchmark.recursive
 
 : fib ( m -- n )
     dup 2 < [ drop 1 ] [ [ 1 - fib ] [ 2 - fib ] bi + ] if ;
-    inline
+    inline recursive
 
 : ack ( m n -- x )
     {
         { [ over zero? ] [ nip 1+ ] }
         { [ dup zero? ] [ drop 1- 1 ack ] }
         [ [ drop 1- ] [ 1- ack ] 2bi ack ]
-    } cond ; inline
+    } cond ; inline recursive
 
 : tak ( x y z -- t )
     2over <= [
@@ -21,7 +21,7 @@ IN: benchmark.recursive
         [      1- -rot tak ]
         3tri
         tak
-    ] if ; inline
+    ] if ; inline recursive
 
 : recursive ( n -- )
     [ 3 swap ack . flush ]
@@ -32,6 +32,6 @@ IN: benchmark.recursive
 
 HINTS: recursive fixnum ;
 
-: recursive-main 11 recursive ;
+: recursive-main ( -- ) 11 recursive ;
 
 MAIN: recursive-main
diff --git a/extra/benchmark/reverse-complement/reverse-complement.factor b/extra/benchmark/reverse-complement/reverse-complement.factor
index 5fdaf49d8f..665cbba30d 100755
--- a/extra/benchmark/reverse-complement/reverse-complement.factor
+++ b/extra/benchmark/reverse-complement/reverse-complement.factor
@@ -1,30 +1,20 @@
 USING: io io.files io.streams.duplex kernel sequences
 sequences.private strings vectors words memoize splitting
-hints unicode.case continuations io.encodings.ascii ;
+grouping hints tr continuations io.encodings.ascii
+unicode.case ;
 IN: benchmark.reverse-complement
 
-MEMO: trans-map ( -- str )
-    256 >string
-    "TGCAAKYRMBDHV" "ACGTUMRYKVHDB"
-    [ pick set-nth ] 2each ;
-
-: do-trans-map ( str -- )
-    [ ch>upper trans-map nth ] change-each ;
-
-HINTS: do-trans-map string ;
+TR: trans-map ch>upper "ACGTUMRYKVHDB" "TGCAAKYRMBDHV" ;
 
 : translate-seq ( seq -- str )
-    concat dup reverse-here dup do-trans-map ;
+    concat dup reverse-here dup trans-map-fast ;
 
 : show-seq ( seq -- )
     translate-seq 60 <groups> [ print ] each ;
 
 : do-line ( seq line -- seq )
-    dup first ">;" memq? [
-        over show-seq print dup delete-all
-    ] [
-        over push
-    ] if ;
+    dup first ">;" memq?
+    [ over show-seq print dup delete-all ] [ over push ] if ;
 
 HINTS: do-line vector string ;
 
@@ -38,10 +28,10 @@ HINTS: do-line vector string ;
         ] with-file-reader
     ] with-file-writer ;
 
-: reverse-complement-in
+: reverse-complement-in ( -- path )
     "reverse-complement-in.txt" temp-file ;
 
-: reverse-complement-out
+: reverse-complement-out ( -- path )
     "reverse-complement-out.txt" temp-file ;
 
 : reverse-complement-main ( -- )
diff --git a/extra/benchmark/sockets/sockets.factor b/extra/benchmark/sockets/sockets.factor
index 673a67d93f..68e3a625a7 100755
--- a/extra/benchmark/sockets/sockets.factor
+++ b/extra/benchmark/sockets/sockets.factor
@@ -6,9 +6,9 @@ IN: benchmark.sockets
 
 SYMBOL: counter
 
-: number-of-requests 1 ;
+: number-of-requests 1000 ;
 
-: server-addr "127.0.0.1" 7777 <inet4> ;
+: server-addr ( -- addr ) "127.0.0.1" 7777 <inet4> ;
 
 : server-loop ( server -- )
     dup accept drop [
@@ -31,12 +31,14 @@ SYMBOL: counter
     ] ignore-errors ;
 
 : simple-client ( -- )
-    server-addr ascii [
-        CHAR: b write1 flush
-        number-of-requests
-        [ CHAR: a dup write1 flush read1 assert= ] times
-        counter get count-down
-    ] with-client ;
+    [
+        server-addr ascii [
+            CHAR: b write1 flush
+            number-of-requests
+            [ CHAR: a dup write1 flush read1 assert= ] times
+        ] with-client
+    ] try
+    counter get count-down ;
 
 : stop-server ( -- )
     server-addr ascii [
@@ -52,8 +54,13 @@ SYMBOL: counter
         counter get await
         stop-server
         yield yield
-    ] time ;
+    ] benchmark . flush ;
 
-: socket-benchmarks ;
+: socket-benchmarks ( -- )
+    1 clients
+    10 clients
+    20 clients
+    40 clients
+    100 clients ;
 
 MAIN: socket-benchmarks
diff --git a/extra/benchmark/sort/sort.factor b/extra/benchmark/sort/sort.factor
index cd6189fe22..983a9e86b1 100755
--- a/extra/benchmark/sort/sort.factor
+++ b/extra/benchmark/sort/sort.factor
@@ -2,7 +2,7 @@ USING: kernel sequences sorting benchmark.random math.parser
 io.files io.encodings.ascii ;
 IN: benchmark.sort
 
-: sort-benchmark
+: sort-benchmark ( -- )
     random-numbers-path
     ascii file-lines [ string>number ] map
     natural-sort drop ;
diff --git a/extra/benchmark/spectral-norm/spectral-norm.factor b/extra/benchmark/spectral-norm/spectral-norm.factor
index 5d36aa25bd..6d4d42116c 100644
--- a/extra/benchmark/spectral-norm/spectral-norm.factor
+++ b/extra/benchmark/spectral-norm/spectral-norm.factor
@@ -33,7 +33,7 @@ IN: benchmark.spectral-norm
     [ eval-A-times-u ] [ eval-At-times-u ] bi ; inline
 
 :: u/v ( n -- u v )
-    n 1.0 <float-array> dup
+    n 1.0 <repetition> >float-array dup
     10 [
         drop
         n eval-AtA-times-u
diff --git a/extra/benchmark/stack/stack.factor b/extra/benchmark/stack/stack.factor
new file mode 100644
index 0000000000..d4dc18e80f
--- /dev/null
+++ b/extra/benchmark/stack/stack.factor
@@ -0,0 +1,19 @@
+USING: kernel sequences math math.functions vectors ;
+IN: benchmark.stack
+
+: stack-loop ( vec -- )
+    1000 [
+        10000 [
+            dup pop dup ! dup 10 > [ sqrt dup 1 + ] [ dup 2 * ] if
+            pick push
+            over push
+        ] times
+        10000 [ dup pop* ] times
+    ] times
+    drop ;
+
+: stack-benchmark ( -- )
+    V{ 123456 } clone stack-loop
+    20000 <vector> 123456 over set-first stack-loop ;
+
+MAIN: stack-benchmark
diff --git a/extra/benchmark/typecheck1/typecheck1.factor b/extra/benchmark/typecheck1/typecheck1.factor
index fd7bb6e802..5ffe96292b 100644
--- a/extra/benchmark/typecheck1/typecheck1.factor
+++ b/extra/benchmark/typecheck1/typecheck1.factor
@@ -1,10 +1,10 @@
-USING: math kernel ;
+USING: math kernel accessors ;
 IN: benchmark.typecheck1
 
 TUPLE: hello n ;
 
-: foo 0 100000000 [ over hello-n + ] times ;
+: foo ( obj -- obj n ) 0 100000000 [ over n>> + ] times ;
 
-: typecheck-main 0 hello boa foo 2drop ;
+: typecheck-main ( -- ) 0 hello boa foo 2drop ;
 
 MAIN: typecheck-main
diff --git a/extra/benchmark/typecheck2/typecheck2.factor b/extra/benchmark/typecheck2/typecheck2.factor
index 0dfcc17c66..2571eda412 100644
--- a/extra/benchmark/typecheck2/typecheck2.factor
+++ b/extra/benchmark/typecheck2/typecheck2.factor
@@ -3,10 +3,10 @@ IN: benchmark.typecheck2
 
 TUPLE: hello n ;
 
-: hello-n* dup tuple? [ 3 slot ] [ 3 throw ] if ;
+: hello-n* ( obj -- value ) dup tuple? [ 2 slot ] [ 3 throw ] if ;
 
-: foo 0 100000000 [ over hello-n* + ] times ;
+: foo ( obj -- obj n ) 0 100000000 [ over hello-n* + ] times ;
 
-: typecheck-main 0 hello boa foo 2drop ;
+: typecheck-main ( -- ) 0 hello boa foo 2drop ;
 
 MAIN: typecheck-main
diff --git a/extra/benchmark/typecheck3/typecheck3.factor b/extra/benchmark/typecheck3/typecheck3.factor
index 3ca6a9f9e7..c4887c03c4 100644
--- a/extra/benchmark/typecheck3/typecheck3.factor
+++ b/extra/benchmark/typecheck3/typecheck3.factor
@@ -3,10 +3,10 @@ IN: benchmark.typecheck3
 
 TUPLE: hello n ;
 
-: hello-n* dup tag 2 eq? [ 3 slot ] [ 3 throw ] if ;
+: hello-n* ( obj -- val ) dup tag 2 eq? [ 2 slot ] [ 3 throw ] if ;
 
-: foo 0 100000000 [ over hello-n* + ] times ;
+: foo ( obj -- obj n ) 0 100000000 [ over hello-n* + ] times ;
 
-: typecheck-main 0 hello boa foo 2drop ;
+: typecheck-main ( -- ) 0 hello boa foo 2drop ;
 
 MAIN: typecheck-main
diff --git a/extra/benchmark/typecheck4/typecheck4.factor b/extra/benchmark/typecheck4/typecheck4.factor
index cc3310fef6..c881864304 100644
--- a/extra/benchmark/typecheck4/typecheck4.factor
+++ b/extra/benchmark/typecheck4/typecheck4.factor
@@ -3,10 +3,10 @@ IN: benchmark.typecheck4
 
 TUPLE: hello n ;
 
-: hello-n* 3 slot ;
+: hello-n* ( obj -- val ) 2 slot ;
 
-: foo 0 100000000 [ over hello-n* + ] times ;
+: foo ( obj -- obj n ) 0 100000000 [ over hello-n* + ] times ;
 
-: typecheck-main 0 hello boa foo 2drop ;
+: typecheck-main ( -- ) 0 hello boa foo 2drop ;
 
 MAIN: typecheck-main
diff --git a/extra/benchmark/ui-panes/ui-panes.factor b/extra/benchmark/ui-panes/ui-panes.factor
new file mode 100644
index 0000000000..6fdbdaecf6
--- /dev/null
+++ b/extra/benchmark/ui-panes/ui-panes.factor
@@ -0,0 +1,7 @@
+USING: ui.gadgets.panes prettyprint io sequences ;
+IN: benchmark.ui-panes
+
+: ui-pane-benchmark ( -- )
+    <pane> <pane-stream> [ 10000 [ . ] each ] with-output-stream* ;
+
+MAIN: ui-pane-benchmark
diff --git a/extra/bitfields/bitfields.factor b/extra/bitfields/bitfields.factor
old mode 100644
new mode 100755
index 7fcec00e98..76e8d7883d
--- a/extra/bitfields/bitfields.factor
+++ b/extra/bitfields/bitfields.factor
@@ -1,6 +1,6 @@
-USING: parser kernel math sequences namespaces assocs inspector
+USING: parser lexer kernel math sequences namespaces assocs summary
 words splitting math.parser arrays sequences.next mirrors
-shuffle compiler.units ;
+generalizations compiler.units ;
 IN: bitfields
 
 ! Example:
@@ -101,7 +101,7 @@ M: check< summary drop "Number exceeds upper bound" ;
         >ranges filter-pad [ define-setters ] 2keep define-accessors
     ] with-compilation-unit ;
 
-: parse-bitfield 
+: parse-bitfield ( -- )
     scan ";" parse-tokens parse-slots define-bitfield ;
 
 : BITFIELD:
diff --git a/extra/bitfields/tags.txt b/extra/bitfields/tags.txt
index 9ffc038dbd..f4274299b1 100644
--- a/extra/bitfields/tags.txt
+++ b/extra/bitfields/tags.txt
@@ -1,2 +1 @@
-collections
 extensions
diff --git a/extra/boids/boids.factor b/extra/boids/boids.factor
index 40ce7adb35..8c045ee270 100644
--- a/extra/boids/boids.factor
+++ b/extra/boids/boids.factor
@@ -1,19 +1,22 @@
 
-USING: kernel namespaces
+USING: combinators.short-circuit kernel namespaces
        math
        math.constants
        math.functions
        math.order
        math.vectors
        math.trig
+       math.physics.pos
+       math.physics.vel
        combinators arrays sequences random vars
-       combinators.lib ;
+       combinators.lib
+       accessors ;
 
 IN: boids
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-TUPLE: boid pos vel ;
+TUPLE: boid < vel ;
 
 C: <boid> boid
 
@@ -70,10 +73,6 @@ VAR: separation-radius
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: distance ( boid boid -- n ) [ boid-pos ] [ boid-pos ] bi* v- norm ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
 : constrain ( n a b -- n ) rot min max ;
 
 : angle-between ( vec vec -- angle )
@@ -81,10 +80,10 @@ VAR: separation-radius
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: relative-position ( self other -- v ) swap [ boid-pos ] bi@ v- ;
+: relative-position ( self other -- v ) swap [ pos>> ] bi@ v- ;
 
 : relative-angle ( self other -- angle )
-over boid-vel -rot relative-position angle-between ;
+over vel>> -rot relative-position angle-between ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -92,9 +91,9 @@ over boid-vel -rot relative-position angle-between ;
 
 : vaverage ( seq-of-vectors -- seq ) [ vsum ] [ length ] bi v/n ;
 
-: average-position ( boids -- pos ) [ boid-pos ] map vaverage ;
+: average-position ( boids -- pos ) [ pos>> ] map vaverage ;
 
-: average-velocity ( boids -- vel ) [ boid-vel ] map vaverage ;
+: average-velocity ( boids -- vel ) [ vel>> ] map vaverage ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -114,7 +113,7 @@ over boid-vel -rot relative-position angle-between ;
   { [ cohesion-radius> in-range? ]
     [ cohesion-view-angle> in-view? ]
     [ eq? not ] }
-  <--&& ;
+  2&& ;
 
 : cohesion-neighborhood ( self -- boids )
   boids> [ within-cohesion-neighborhood? ] with filter ;
@@ -123,7 +122,7 @@ over boid-vel -rot relative-position angle-between ;
   dup cohesion-neighborhood
   dup empty?
   [ 2drop { 0 0 } ]
-  [ average-position swap boid-pos v- normalize* cohesion-weight> v*n ]
+  [ average-position swap pos>> v- normalize* cohesion-weight> v*n ]
   if ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -134,7 +133,7 @@ over boid-vel -rot relative-position angle-between ;
   { [ separation-radius> in-range? ]
     [ separation-view-angle> in-view? ]
     [ eq? not ] }
-  <--&& ;
+  2&& ;
 
 : separation-neighborhood ( self -- boids )
   boids> [ within-separation-neighborhood? ] with filter ;
@@ -143,7 +142,7 @@ over boid-vel -rot relative-position angle-between ;
   dup separation-neighborhood
   dup empty?
   [ 2drop { 0 0 } ]
-  [ average-position swap boid-pos swap v- normalize* separation-weight> v*n ]
+  [ average-position swap pos>> swap v- normalize* separation-weight> v*n ]
   if ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -154,7 +153,7 @@ over boid-vel -rot relative-position angle-between ;
   { [ alignment-radius> in-range? ]
     [ alignment-view-angle> in-view? ]
     [ eq? not ] }
-  <--&& ;
+  2&& ;
 
 : alignment-neighborhood ( self -- boids )
 boids> [ within-alignment-neighborhood? ] with filter ;
@@ -206,10 +205,10 @@ cond ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: new-pos ( boid -- pos ) [ boid-pos ] [ boid-vel time-slice> v*n ] bi v+ ;
+: new-pos ( boid -- pos ) [ pos>> ] [ vel>> time-slice> v*n ] bi v+ ;
 
 : new-vel ( boid -- vel )
-  [ boid-vel ] [ acceleration time-slice> v*n ] bi v+ normalize* ;
+  [ vel>> ] [ acceleration time-slice> v*n ] bi v+ normalize* ;
 
 : wrap-pos ( pos -- pos ) { [ wrap-x ] [ wrap-y ] } parallel-call ;
 
@@ -221,7 +220,7 @@ cond ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: init-boids ( -- ) 50 random-boids >boids ;
+: init-boids ( -- ) 100 random-boids >boids ;
 
 : init-world-size ( -- ) { 100 100 } >world-size ;
 
diff --git a/extra/boids/tags.txt b/extra/boids/ui/tags.txt
similarity index 100%
rename from extra/boids/tags.txt
rename to extra/boids/ui/tags.txt
diff --git a/extra/boids/ui/ui.factor b/extra/boids/ui/ui.factor
index a1feac381d..ddb25ccd8d 100755
--- a/extra/boids/ui/ui.factor
+++ b/extra/boids/ui/ui.factor
@@ -1,6 +1,7 @@
 
-USING: kernel namespaces
+USING: combinators.short-circuit kernel namespaces
        math
+       math.trig
        math.functions
        math.vectors
        math.parser
@@ -19,7 +20,10 @@ USING: kernel namespaces
        ui.gadgets.packs
        ui.gadgets.grids
        ui.gestures
-       assocs.lib vars rewrite-closures boids ;
+       assocs.lib vars rewrite-closures boids accessors
+       math.geometry.rect
+       newfx
+       processing.shapes ;
 
 IN: boids.ui
 
@@ -27,17 +31,21 @@ IN: boids.ui
 ! draw-boid
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: point-a ( boid -- a ) boid-pos ;
-
-: point-b ( boid -- b ) [ boid-pos ] [ boid-vel normalize* 20 v*n ] bi v+ ;
-
-: boid-points ( boid -- point-a point-b ) [ point-a ] [ point-b ] bi ;
-
-: draw-boid ( boid -- ) boid-points gl-line ;
+: draw-boid ( boid -- )
+  glPushMatrix
+    dup pos>> gl-translate-2d
+        vel>> first2 rect> arg rad>deg 0 0 1 glRotated
+    { { 0 5 } { 0 -5 } { 20 0 } } triangle
+    fill-mode
+  glPopMatrix ;
 
 : draw-boids ( -- ) boids> [ draw-boid ] each ;
 
-: display ( -- ) black gl-color draw-boids ;
+: boid-color ( -- color ) T{ rgba f 1.0 0 0 0.3 } ;
+
+: display ( -- )
+  boid-color >fill-color
+  draw-boids ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -98,67 +106,70 @@ VARS: population-label cohesion-label alignment-label separation-label ;
 : boids-window* ( -- )
   init-variables init-world-size init-boids loop on
 
-  C[ display ] <slate> >slate
-    t                      slate> set-gadget-clipped?
-    { 600 400 }            slate> set-slate-dim
-    C[ [ run ] in-thread ] slate> set-slate-graft
-    C[ loop off ]          slate> set-slate-ungraft
-
-  "" <label> dup reverse-video-theme >population-label update-population-label
-
-  "" <label> dup reverse-video-theme >cohesion-label   update-cohesion-label
-  "" <label> dup reverse-video-theme >alignment-label  update-alignment-label
-  "" <label> dup reverse-video-theme >separation-label update-separation-label
+  "" <label> reverse-video-theme >population-label update-population-label
+  "" <label> reverse-video-theme >cohesion-label   update-cohesion-label
+  "" <label> reverse-video-theme >alignment-label  update-alignment-label
+  "" <label> reverse-video-theme >separation-label update-separation-label
 
   <frame>
 
-  {
-    [ "ESC - Pause" [ drop toggle-loop ] button* ]
+    <shelf>
 
-    [ "1 - Randomize" [ drop randomize ] button* ]
+       1 >>fill
 
-    [ <pile> 1 over set-pack-fill
-      population-label> over add-gadget
-      "3 - Add 10" [ drop add-10-boids ] button* over add-gadget
-      "2 - Sub 10" [ drop sub-10-boids ] button* over add-gadget ]
+      "ESC - Pause" [ drop toggle-loop ] button* add-gadget
+    
+      "1 - Randomize" [ drop randomize ] button* add-gadget
+    
+      <pile> 1 >>fill
+        population-label> add-gadget
+        "3 - Add 10" [ drop add-10-boids ] button* add-gadget
+        "2 - Sub 10" [ drop sub-10-boids ] button* add-gadget
+      add-gadget
+    
+      <pile> 1 >>fill
+        cohesion-label> add-gadget
+        "q - +0.1" [ drop inc-cohesion-weight ] button* add-gadget
+        "a - -0.1" [ drop dec-cohesion-weight ] button* add-gadget
+      add-gadget
 
-    [ <pile> 1 over set-pack-fill
-      cohesion-label> over add-gadget
-      "q - +0.1" [ drop inc-cohesion-weight ] button* over add-gadget
-      "a - -0.1" [ drop dec-cohesion-weight ] button* over add-gadget ]
+      <pile> 1 >>fill
+        alignment-label> add-gadget
+        "w - +0.1" [ drop inc-alignment-weight ] button* add-gadget
+        "s - -0.1" [ drop dec-alignment-weight ] button* add-gadget
+      add-gadget
 
-    [ <pile> 1 over set-pack-fill
-      alignment-label> over add-gadget
-      "w - +0.1" [ drop inc-alignment-weight ] button* over add-gadget
-      "s - -0.1" [ drop dec-alignment-weight ] button* over add-gadget ]
+      <pile> 1 >>fill
+        separation-label> add-gadget
+        "e - +0.1" [ drop inc-separation-weight ] button* add-gadget
+        "d - -0.1" [ drop dec-separation-weight ] button* add-gadget
+      add-gadget
 
-    [ <pile> 1 over set-pack-fill
-      separation-label> over add-gadget
-      "e - +0.1" [ drop inc-separation-weight ] button* over add-gadget
-      "d - -0.1" [ drop dec-separation-weight ] button* over add-gadget ]
+    @top grid-add
 
-  } [ call ] map [ [ gadget, ] each ] make-shelf
-    1 over set-pack-fill
-    over @top grid-add
+    C[ display ] <slate>
+      dup                    >slate
+      t                      >>clipped?
+      { 600 400 }            >>pdim
+      C[ [ run ] in-thread ] >>graft
+      C[ loop off ]          >>ungraft
+    @center grid-add
 
-  slate> over @center grid-add
+  <handler> 
+    H{ } clone
+      T{ key-down f f "1"   } C[ drop randomize             ] is
+      T{ key-down f f "2"   } C[ drop sub-10-boids          ] is
+      T{ key-down f f "3"   } C[ drop add-10-boids          ] is
+      T{ key-down f f "q"   } C[ drop inc-cohesion-weight   ] is
+      T{ key-down f f "a"   } C[ drop dec-cohesion-weight   ] is
+      T{ key-down f f "w"   } C[ drop inc-alignment-weight  ] is
+      T{ key-down f f "s"   } C[ drop dec-alignment-weight  ] is
+      T{ key-down f f "e"   } C[ drop inc-separation-weight ] is
+      T{ key-down f f "d"   } C[ drop dec-separation-weight ] is
+      T{ key-down f f "ESC" } C[ drop toggle-loop           ] is
+    >>table
 
-  H{ } clone
-    T{ key-down f f "1" } C[ drop randomize    ] put-at
-    T{ key-down f f "2" } C[ drop sub-10-boids ] put-at
-    T{ key-down f f "3" } C[ drop add-10-boids ] put-at
-
-    T{ key-down f f "q" } C[ drop inc-cohesion-weight ] put-at
-    T{ key-down f f "a" } C[ drop dec-cohesion-weight ] put-at
-
-    T{ key-down f f "w" } C[ drop inc-alignment-weight ] put-at
-    T{ key-down f f "s" } C[ drop dec-alignment-weight ] put-at
-
-    T{ key-down f f "e" } C[ drop inc-separation-weight ] put-at
-    T{ key-down f f "d" } C[ drop dec-separation-weight ] put-at
-
-    T{ key-down f f "ESC" } C[ drop toggle-loop ] put-at
-  <handler> tuck set-gadget-delegate "Boids" open-window ;
+  "Boids" open-window ;
 
 : boids-window ( -- ) [ [ boids-window* ] with-scope ] with-ui ;
 
diff --git a/extra/xmode/tokens/authors.txt b/extra/boolean-expr/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/xmode/tokens/authors.txt
rename to extra/boolean-expr/authors.txt
diff --git a/extra/boolean-expr/boolean-expr.factor b/extra/boolean-expr/boolean-expr.factor
new file mode 100644
index 0000000000..5bf4bf3ad3
--- /dev/null
+++ b/extra/boolean-expr/boolean-expr.factor
@@ -0,0 +1,95 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays classes kernel sequences sets
+io prettyprint multi-methods symbols ;
+IN: boolean-expr
+
+! Demonstrates the use of Unicode symbols in source files, and
+! multi-method dispatch.
+
+TUPLE: â‹€ x y ;
+TUPLE: � x y ;
+TUPLE: ¬ x ;
+
+SINGLETONS: ⊤ ⊥ ;
+
+SINGLETONS: P Q R S T U V W X Y Z ;
+
+UNION: □ ⋀ � ¬ ⊤ ⊥ P Q R S T U V W X Y Z ;
+
+GENERIC: â‹€ ( x y -- expr )
+
+METHOD: ⋀ { ⊤ □ } nip ;
+METHOD: ⋀ { □ ⊤ } drop ;
+METHOD: ⋀ { ⊥ □ } drop ;
+METHOD: ⋀ { □ ⊥ } nip ;
+
+METHOD: ⋀ { � □ } [ [ x>> ] dip ⋀ ] [ [ y>> ] dip ⋀ ] 2bi � ;
+METHOD: ⋀ { □ � } [ x>> ⋀ ] [ y>> ⋀ ] 2bi � ;
+
+METHOD: â‹€ { â–¡ â–¡ } \ â‹€ boa ;
+
+GENERIC: � ( x y -- expr )
+
+METHOD: � { ⊤ □ } drop ;
+METHOD: � { □ ⊤ } nip ;
+METHOD: � { ⊥ □ } nip ;
+METHOD: � { □ ⊥ } drop ;
+
+METHOD: � { □ □ } \ � boa ;
+
+GENERIC: ¬ ( x -- expr )
+
+METHOD: ¬ { ⊤ } drop ⊥ ;
+METHOD: ¬ { ⊥ } drop ⊤ ;
+
+METHOD: ¬ { ⋀ } [ x>> ¬ ] [ y>> ¬ ] bi � ;
+METHOD: ¬ { � } [ x>> ¬ ] [ y>> ¬ ] bi ⋀ ;
+
+METHOD: ¬ { □ } \ ¬ boa ;
+
+: → ( x y -- expr ) ¬ ⋀ ;
+: ⊕ ( x y -- expr ) [ � ] [ ⋀ ¬ ] 2bi ⋀ ;
+: ≣ ( x y -- expr ) [ ⋀ ] [ [ ¬ ] bi@ ⋀ ] 2bi � ;
+
+GENERIC: (cnf) ( expr -- cnf )
+
+METHOD: (cnf) { â‹€ } [ x>> (cnf) ] [ y>> (cnf) ] bi append ;
+METHOD: (cnf) { â–¡ } 1array ;
+
+GENERIC: cnf ( expr -- cnf )
+
+METHOD: cnf { � } [ x>> cnf ] [ y>> cnf ] bi append ;
+METHOD: cnf { â–¡ } (cnf) 1array ;
+
+GENERIC: satisfiable? ( expr -- ? )
+
+METHOD: satisfiable? { ⊤ } drop t ;
+METHOD: satisfiable? { ⊥ } drop f ;
+
+: partition ( seq quot -- left right )
+    [ [ not ] compose filter ] [ filter ] 2bi ; inline
+
+: (satisfiable?) ( seq -- ? )
+    [ \ ¬ instance? ] partition [ x>> ] map intersect empty? ;
+
+METHOD: satisfiable? { â–¡ }
+    cnf [ (satisfiable?) ] contains? ;
+
+GENERIC: (expr.) ( expr -- )
+
+METHOD: (expr.) { â–¡ } pprint ;
+
+: op. ( expr -- )
+    "(" write
+    [ x>> (expr.) ]
+    [ bl class pprint bl ]
+    [ y>> (expr.) ]
+    tri
+    ")" write ;
+
+METHOD: (expr.) { â‹€ } op. ;
+METHOD: (expr.) { � } op. ;
+METHOD: (expr.) { ¬ } [ class pprint ] [ x>> (expr.) ] bi ;
+
+: expr. ( expr -- ) (expr.) nl ;
diff --git a/extra/boolean-expr/summary.txt b/extra/boolean-expr/summary.txt
new file mode 100644
index 0000000000..9b51186ca9
--- /dev/null
+++ b/extra/boolean-expr/summary.txt
@@ -0,0 +1 @@
+Simple boolean expression evaluator and simplifier
diff --git a/extra/boolean-expr/tags.txt b/extra/boolean-expr/tags.txt
new file mode 100644
index 0000000000..8b13789179
--- /dev/null
+++ b/extra/boolean-expr/tags.txt
@@ -0,0 +1 @@
+
diff --git a/extra/bubble-chamber/particle/axion/axion.factor b/extra/bubble-chamber/particle/axion/axion.factor
index 54865894c6..2dafc36cde 100644
--- a/extra/bubble-chamber/particle/axion/axion.factor
+++ b/extra/bubble-chamber/particle/axion/axion.factor
@@ -1,7 +1,8 @@
 
 USING: kernel sequences random accessors multi-methods
        math math.constants math.ranges math.points combinators.cleave
-       processing bubble-chamber.common bubble-chamber.particle ;
+       processing processing.shapes
+       bubble-chamber.common bubble-chamber.particle ;
 
 IN: bubble-chamber.particle.axion
 
diff --git a/extra/bubble-chamber/particle/hadron/hadron.factor b/extra/bubble-chamber/particle/hadron/hadron.factor
index 9eecf2dd93..910df97789 100644
--- a/extra/bubble-chamber/particle/hadron/hadron.factor
+++ b/extra/bubble-chamber/particle/hadron/hadron.factor
@@ -1,9 +1,8 @@
 
 USING: kernel random math math.constants math.points accessors multi-methods
-       processing
-       processing.color
+       processing processing.shapes
        bubble-chamber.common
-       bubble-chamber.particle ;
+       bubble-chamber.particle colors ;
 
 IN: bubble-chamber.particle.hadron
 
@@ -26,7 +25,7 @@ METHOD: collide { hadron }
 
   [ 0.00001 theta-dd-small? ] [ -0.001 0.001 random-theta-dd ] [ ] while
 
-  0 1 0 <rgb> >>myc
+  0 1 0 1 rgba boa >>myc
 
   drop ;
 
diff --git a/extra/bubble-chamber/particle/muon/colors/colors.factor b/extra/bubble-chamber/particle/muon/colors/colors.factor
index e68fff5efd..644bed833b 100644
--- a/extra/bubble-chamber/particle/muon/colors/colors.factor
+++ b/extra/bubble-chamber/particle/muon/colors/colors.factor
@@ -1,7 +1,7 @@
 
 USING: kernel sequences math math.constants math.order accessors
        processing
-       processing.color ;
+       colors ;
 
 IN: bubble-chamber.particle.muon.colors
 
diff --git a/extra/bubble-chamber/particle/muon/muon.factor b/extra/bubble-chamber/particle/muon/muon.factor
index a61526fdf7..c5ee71c1b0 100644
--- a/extra/bubble-chamber/particle/muon/muon.factor
+++ b/extra/bubble-chamber/particle/muon/muon.factor
@@ -7,6 +7,7 @@ USING: kernel arrays sequences random
        multi-methods accessors
        combinators.cleave
        processing
+       processing.shapes
        bubble-chamber.common
        bubble-chamber.particle
        bubble-chamber.particle.muon.colors ;
diff --git a/extra/bubble-chamber/particle/particle.factor b/extra/bubble-chamber/particle/particle.factor
index 755a414b71..8b13e9b4b7 100644
--- a/extra/bubble-chamber/particle/particle.factor
+++ b/extra/bubble-chamber/particle/particle.factor
@@ -1,8 +1,8 @@
 
 USING: kernel sequences combinators
        math math.vectors math.functions multi-methods
-       accessors combinators.cleave processing processing.color
-       bubble-chamber.common ;
+       accessors combinators.cleave processing
+       bubble-chamber.common colors ;
 
 IN: bubble-chamber.particle
 
@@ -28,8 +28,8 @@ TUPLE: particle pos vel speed speed-d theta theta-d theta-dd myc mya ;
   0 >>theta-d
   0 >>theta-dd
 
-  0 0 0 1 <rgba> >>myc
-  0 0 0 1 <rgba> >>mya ;
+  0 0 0 1 rgba boa >>myc
+  0 0 0 1 rgba boa >>mya ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
diff --git a/extra/bubble-chamber/particle/quark/quark.factor b/extra/bubble-chamber/particle/quark/quark.factor
index 595c3b5329..194b97a9cd 100644
--- a/extra/bubble-chamber/particle/quark/quark.factor
+++ b/extra/bubble-chamber/particle/quark/quark.factor
@@ -1,6 +1,6 @@
 
 USING: kernel arrays sequences random math accessors multi-methods
-       processing
+       processing processing.shapes
        bubble-chamber.common
        bubble-chamber.particle ;
 
diff --git a/extra/taxes/tags.txt b/extra/bubble-chamber/tags.txt
similarity index 100%
rename from extra/taxes/tags.txt
rename to extra/bubble-chamber/tags.txt
diff --git a/extra/builder/release/archive/archive.factor b/extra/builder/release/archive/archive.factor
index 9b239da586..25153436e6 100644
--- a/extra/builder/release/archive/archive.factor
+++ b/extra/builder/release/archive/archive.factor
@@ -24,12 +24,23 @@ IN: builder.release.archive
 
 : windows-archive-cmd ( -- cmd ) { "zip" "-r" archive-name "factor" } ;
 
+! : macosx-archive-cmd ( -- cmd )
+!   { "hdiutil" "create"
+!               "-srcfolder" "factor"
+!               "-fs" "HFS+"
+!               "-volname" "factor"
+!               archive-name } ;
+
 : macosx-archive-cmd ( -- cmd )
+  { "mkdir" "dmg-root" }                         try-process
+  { "cp" "-r" "factor" "dmg-root" }              try-process
   { "hdiutil" "create"
-              "-srcfolder" "factor"
+              "-srcfolder" "dmg-root"
               "-fs" "HFS+"
               "-volname" "factor"
-              archive-name } ;
+              archive-name }          to-strings try-process
+  { "rm" "-rf" "dmg-root" }                      try-process
+  { "true" } ;
 
 : unix-archive-cmd ( -- cmd ) { "tar" "-cvzf" archive-name "factor" } ;
 
diff --git a/extra/builder/release/release.factor b/extra/builder/release/release.factor
index 8f4c0e30f5..28ce3e8b35 100644
--- a/extra/builder/release/release.factor
+++ b/extra/builder/release/release.factor
@@ -1,7 +1,7 @@
 
 USING: kernel debugger system namespaces sequences splitting combinators
        io io.files io.launcher prettyprint bootstrap.image
-       bake combinators.cleave
+       combinators.cleave
        builder.util
        builder.common
        builder.release.branch
diff --git a/extra/builder/release/upload/upload.factor b/extra/builder/release/upload/upload.factor
index 38f6dcb133..32a27f82fd 100644
--- a/extra/builder/release/upload/upload.factor
+++ b/extra/builder/release/upload/upload.factor
@@ -1,5 +1,5 @@
 
-USING: kernel namespaces io io.files
+USING: kernel namespaces sequences arrays io io.files
        builder.util
        builder.common
        builder.release.archive ;
@@ -8,17 +8,47 @@ IN: builder.release.upload
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: remote-location ( -- dest )
-  "factorcode.org:/var/www/factorcode.org/newsite/downloads"
-  platform
-  append-path ;
+SYMBOL: upload-host
 
-: (upload) ( -- )
-  { "scp" archive-name remote-location } to-strings
-  [ "Error uploading binary to factorcode" print ]
-  run-or-bail ;
+SYMBOL: upload-username
+
+SYMBOL: upload-directory
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: remote-location ( -- dest )
+  upload-directory get platform append ;
+
+: remote-archive-name ( -- dest )
+  remote-location "/" archive-name 3append ;
+
+: temp-archive-name ( -- dest )
+  remote-archive-name ".incomplete" append ;
+
+: upload-command ( -- args )
+  "scp"
+  archive-name
+  [ upload-username get % "@" % upload-host get % ":" % temp-archive-name % ] "" make
+  3array ;
+
+: rename-command ( -- args )
+  [
+    "ssh" ,
+    upload-host get ,
+    "-l" ,
+    upload-username get ,
+    "mv" ,
+    temp-archive-name ,
+    remote-archive-name ,
+  ] { } make ;
+
+: upload-temp-file ( -- )
+  upload-command [ "Error uploading binary to factorcode" print ] run-or-bail ;
+
+: rename-temp-file ( -- )
+  rename-command [ "Error renaming binary on factorcode" print ] run-or-bail ;
 
 : upload ( -- )
   upload-to-factorcode get
-    [ (upload) ]
+    [ upload-temp-file rename-temp-file ]
   when ;
diff --git a/extra/builder/util/util.factor b/extra/builder/util/util.factor
index db3b476365..32d1e45066 100644
--- a/extra/builder/util/util.factor
+++ b/extra/builder/util/util.factor
@@ -6,7 +6,7 @@ USING: kernel words namespaces classes parser continuations
        combinators sequences splitting quotations arrays strings tools.time
        sequences.deep accessors assocs.lib
        io.encodings.utf8
-       combinators.cleave bake calendar calendar.format ;
+       combinators.cleave calendar calendar.format eval ;
 
 IN: builder.util
 
@@ -41,14 +41,6 @@ DEFER: to-strings
 
 : host-name* ( -- name ) host-name "." split first ;
 
-! : datestamp ( -- string )
-!   now `{ ,[ dup timestamp-year   ]
-!          ,[ dup timestamp-month  ]
-!          ,[ dup timestamp-day    ]
-!          ,[ dup timestamp-hour   ]
-!          ,[     timestamp-minute ] }
-!   [ pad-00 ] map "-" join ;
-
 : datestamp ( -- string )
   now
     { year>> month>> day>> hour>> minute>> } <arr>
diff --git a/extra/bunny/bun_zipper.ply b/extra/bunny/bun_zipper.ply
new file mode 100644
index 0000000000..b590b31f0b
--- /dev/null
+++ b/extra/bunny/bun_zipper.ply
@@ -0,0 +1,105398 @@
+-0.0378297 0.12794 0.00447467 0.850855 0.5 
+-0.0447794 0.128887 0.00190497 0.900159 0.5 
+-0.0680095 0.151244 0.0371953 0.398443 0.5 
+-0.00228741 0.13015 0.0232201 0.85268 0.5 
+-0.0226054 0.126675 0.00715587 0.675938 0.5 
+-0.0251078 0.125921 0.00624226 0.711533 0.5 
+-0.0371209 0.127449 0.0017956 0.888639 0.5 
+0.033213 0.112692 0.0276861 0.652757 0.5 
+0.0380425 0.109755 0.0161689 0.708171 0.5 
+-0.0255083 0.112568 0.0366767 0.454541 0.437538 
+-0.0245306 0.112636 0.0373469 0.448754 0.455187 
+0.0274031 0.12156 0.0212208 0.533079 0.5 
+-0.0628961 0.158419 -0.0175871 0.404517 0.5 
+0.0400813 0.104202 0.0221684 0.535542 0.5 
+0.0451532 0.0931968 0.0111604 0.579563 0.425995 
+-0.0324965 0.174231 -0.00238999 0.365607 0.5 
+-0.0804587 0.135827 0.0500319 0.499575 0.5 
+-0.0724944 0.126022 0.052902 0.564827 0.5 
+-0.0804375 0.137229 0.0490949 0.406774 0.422055 
+0.00799809 0.131294 0.0169006 0.748371 0.5 
+0.0400265 0.10701 0.00816505 0.680399 0.5 
+0.0371657 0.0997172 -0.00981258 0.600054 0.5 
+-0.0905968 0.140629 0.0221693 0.824561 0.5 
+-0.0843417 0.109004 0.0243603 0.690889 0.5 
+-0.0688709 0.156258 0.0147705 0.807492 0.5 
+-0.0844782 0.152284 0.0269844 0.248168 0.41865 
+0.00536718 0.125777 0.0317922 0.555044 0.354559 
+0.00893209 0.124393 0.0330753 0.653433 0.5 
+-0.0315414 0.125778 0.00387502 0.898771 0.5 
+-0.049674 0.141672 0.0123895 0.691477 0.5 
+-0.0784825 0.135851 0.0506454 0.566256 0.5 
+-0.00425882 0.128035 0.0283342 0.271491 0.462815 
+-0.0454789 0.123431 0.0251209 0.539149 0.5 
+-0.0235385 0.11268 0.0379979 0.464537 0.5 
+-0.0790203 0.0935614 -0.0105962 0.710999 0.5 
+0.0235742 0.124212 0.0226421 0.530957 0.5 
+-0.0902127 0.122664 0.0052855 0.635593 0.5 
+0.0403742 0.101353 -0.00282827 0.574857 0.5 
+0.041224 0.101389 -0.000814438 0.49265 0.490797 
+-0.0859766 0.117044 0.000228439 0.487167 0.430737 
+-0.0499053 0.141681 0.0133989 0.685665 0.5 
+-0.0325018 0.177105 -0.00443384 0.269231 0.447035 
+-0.0774954 0.147028 0.0416906 0.414139 0.5 
+0.0240312 0.1242 0.0213823 0.524222 0.5 
+-0.0225205 0.112681 0.0384786 0.482541 0.5 
+-0.0202018 0.177138 -0.0227808 0.341071 0.440034 
+-0.0381912 0.168168 -0.0127822 0.396317 0.473039 
+-0.0214993 0.112665 0.0388138 0.514245 0.5 
+-0.0322365 0.126297 0.00653811 0.896274 0.5 
+-0.0303734 0.125779 0.00722581 0.874471 0.5 
+0.0104221 0.127848 0.0278469 0.350014 0.41288 
+-0.0463671 0.133058 0.0160254 0.599596 0.5 
+-0.0263079 0.125672 0.00579971 0.73687 0.5 
+-0.0238556 0.126292 0.00669874 0.675023 0.5 
+0.0174667 0.122816 0.0304302 0.625269 0.5 
+0.0184111 0.122524 0.0307587 0.611204 0.34486 
+0.0166382 0.123302 0.0301317 0.647156 0.5 
+0.0337656 0.111689 0.027893 0.664884 0.5 
+0.0320484 0.11465 0.0272407 0.635343 0.5 
+-0.0405044 0.166738 0.00354035 0.413994 0.469929 
+-0.0891386 0.129503 0.00423129 0.625486 0.5 
+-0.0537547 0.143134 0.0264016 0.696873 0.5 
+0.0429765 0.0987175 0.0181666 0.665192 0.5 
+0.042638 0.101488 0.0111603 0.691828 0.5 
+0.040945 0.0957511 0.0281635 0.671611 0.5 
+-0.055076 0.154226 0.0167194 0.394763 0.437313 
+-0.0246921 0.156571 -0.00408158 0.136389 0.380194 
+-0.0685096 0.147001 0.0412847 0.751812 0.5 
+-0.0715343 0.141411 0.0464325 0.627973 0.5 
+-0.0700345 0.0631474 0.0200567 0.413051 0.5 
+-0.0904383 0.119966 0.00529664 0.442613 0.376719 
+-0.0754938 0.127441 0.0530403 0.629117 0.5 
+-0.0395371 0.165252 0.00310729 0.710449 0.5 
+-0.0405211 0.16525 0.00379284 0.525639 0.48044 
+-0.0644897 0.161538 -0.0184978 0.449093 0.5 
+-0.0343115 0.126654 0.00282732 0.884528 0.5 
+-0.0460392 0.132757 0.0146796 0.568661 0.5 
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diff --git a/extra/bunny/bunny.factor b/extra/bunny/bunny.factor
index b315e4ca5a..ed89f2a809 100755
--- a/extra/bunny/bunny.factor
+++ b/extra/bunny/bunny.factor
@@ -1,34 +1,25 @@
-USING: alien alien.c-types arrays sequences math math.vectors
-math.matrices math.parser io io.files kernel opengl opengl.gl
-opengl.glu shuffle http.client vectors namespaces ui.gadgets
-ui.gadgets.canvas ui.render ui splitting combinators tools.time
-system combinators.lib float-arrays continuations
-opengl.demo-support multiline ui.gestures bunny.fixed-pipeline
-bunny.cel-shaded bunny.outlined bunny.model accessors destructors ;
+USING: accessors arrays bunny.cel-shaded bunny.fixed-pipeline
+bunny.model bunny.outlined destructors kernel math opengl.demo-support
+opengl.gl sequences ui ui.gadgets ui.gestures ui.render words ;
 IN: bunny
 
-TUPLE: bunny-gadget model geom draw-seq draw-n ;
+TUPLE: bunny-gadget < demo-gadget model-triangles geom draw-seq draw-n ;
 
 : <bunny-gadget> ( -- bunny-gadget )
-    0.0 0.0 0.375 <demo-gadget>
-    maybe-download read-model {
-        set-delegate
-        (>>model)
-    } bunny-gadget construct ;
+    0.0 0.0 0.375 bunny-gadget new-demo-gadget
+    maybe-download read-model >>model-triangles ;
 
 : bunny-gadget-draw ( gadget -- draw )
-    { draw-n>> draw-seq>> }
-    get-slots nth ;
+    [ draw-n>> ] [ draw-seq>> ] bi nth ;
 
 : bunny-gadget-next-draw ( gadget -- )
-    dup { draw-seq>> draw-n>> }
-    get-slots
+    dup [ draw-seq>> ] [ draw-n>> ] bi
     1+ swap length mod
     >>draw-n relayout-1 ;
 
 M: bunny-gadget graft* ( gadget -- )
     GL_DEPTH_TEST glEnable
-    dup model>> <bunny-geom> >>geom
+    dup model-triangles>> <bunny-geom> >>geom
     dup
     [ <bunny-fixed-pipeline> ]
     [ <bunny-cel-shaded> ]
@@ -42,13 +33,14 @@ M: bunny-gadget ungraft* ( gadget -- )
     [ draw-seq>> [ [ dispose ] when* ] each ] bi ;
 
 M: bunny-gadget draw-gadget* ( gadget -- )
-    0.15 0.15 0.15 1.0 glClearColor
-    GL_DEPTH_BUFFER_BIT GL_COLOR_BUFFER_BIT bitor glClear
-    dup demo-gadget-set-matrices
-    GL_MODELVIEW glMatrixMode
-    0.02 -0.105 0.0 glTranslatef
-    { geom>> bunny-gadget-draw } get-slots
-    draw-bunny ;
+    dup draw-seq>> empty? [ drop ] [
+        0.15 0.15 0.15 1.0 glClearColor
+        GL_DEPTH_BUFFER_BIT GL_COLOR_BUFFER_BIT bitor glClear
+        dup demo-gadget-set-matrices
+        GL_MODELVIEW glMatrixMode
+        0.02 -0.105 0.0 glTranslatef
+        [ geom>> ] [ bunny-gadget-draw ] bi draw-bunny
+    ] if ;
 
 M: bunny-gadget pref-dim* ( gadget -- dim )
     drop { 640 480 } ;
diff --git a/extra/bunny/cel-shaded/cel-shaded.factor b/extra/bunny/cel-shaded/cel-shaded.factor
index 8285cd776f..e481b47161 100644
--- a/extra/bunny/cel-shaded/cel-shaded.factor
+++ b/extra/bunny/cel-shaded/cel-shaded.factor
@@ -1,6 +1,6 @@
 USING: arrays bunny.model continuations destructors kernel
 multiline opengl opengl.shaders opengl.capabilities opengl.gl
-sequences sequences.lib accessors ;
+sequences sequences.lib accessors combinators ;
 IN: bunny.cel-shaded
 
 STRING: vertex-shader-source
@@ -78,13 +78,15 @@ TUPLE: bunny-cel-shaded program ;
     ] [ f ] if ;
 
 : (draw-cel-shaded-bunny) ( geom program -- )
-    {
-        { "light_direction" [ 1.0 -1.0 1.0 glUniform3f ] }
-        { "color"           [ 0.6 0.5 0.5 1.0 glUniform4f ] }
-        { "ambient"         [ 0.2 0.2 0.2 0.2 glUniform4f ] }
-        { "diffuse"         [ 0.8 0.8 0.8 0.8 glUniform4f ] }
-        { "shininess"       [ 100.0 glUniform1f ] }
-    } [ bunny-geom ] with-gl-program ;
+    [
+        {
+            [ "light_direction" glGetUniformLocation 1.0 -1.0 1.0 glUniform3f ]
+            [ "color"           glGetUniformLocation 0.6 0.5 0.5 1.0 glUniform4f ]
+            [ "ambient"         glGetUniformLocation 0.2 0.2 0.2 0.2 glUniform4f ]
+            [ "diffuse"         glGetUniformLocation 0.8 0.8 0.8 0.8 glUniform4f ]
+            [ "shininess"       glGetUniformLocation 100.0 glUniform1f ]
+        } cleave bunny-geom
+    ] with-gl-program ;
 
 M: bunny-cel-shaded draw-bunny
     program>> (draw-cel-shaded-bunny) ;
diff --git a/extra/bunny/deploy.factor b/extra/bunny/deploy.factor
index 643737b23c..55ac991df1 100755
--- a/extra/bunny/deploy.factor
+++ b/extra/bunny/deploy.factor
@@ -1,15 +1,15 @@
 USING: tools.deploy.config ;
 H{
-    { deploy-word-defs? f }
-    { deploy-random? f }
-    { deploy-name "Bunny" }
-    { deploy-threads? t }
-    { deploy-compiler? t }
-    { deploy-math? t }
-    { deploy-c-types? f }
     { deploy-io 3 }
+    { deploy-word-defs? f }
     { deploy-reflection 1 }
-    { deploy-ui? t }
-    { "stop-after-last-window?" t }
+    { deploy-compiler? t }
+    { deploy-random? f }
+    { deploy-c-types? f }
+    { deploy-name "Bunny" }
     { deploy-word-props? f }
+    { deploy-threads? t }
+    { "stop-after-last-window?" t }
+    { deploy-ui? t }
+    { deploy-math? t }
 }
diff --git a/extra/bunny/model/model.factor b/extra/bunny/model/model.factor
index 8fef44a76a..32312aed89 100755
--- a/extra/bunny/model/model.factor
+++ b/extra/bunny/model/model.factor
@@ -1,9 +1,7 @@
-USING: alien alien.c-types arrays sequences math math.vectors
-math.matrices math.parser io io.files kernel opengl opengl.gl
-opengl.glu io.encodings.ascii opengl.capabilities shuffle
-http.client vectors splitting tools.time system combinators
-float-arrays continuations destructors namespaces sequences.lib
-accessors ;
+USING: accessors alien.c-types arrays combinators destructors http.client
+io io.encodings.ascii io.files kernel math math.matrices math.parser
+math.vectors opengl opengl.capabilities opengl.gl sequences sequences.lib
+splitting vectors words ;
 IN: bunny.model
 
 : numbers ( str -- seq )
@@ -38,9 +36,9 @@ IN: bunny.model
     ascii [ parse-model ] with-file-reader
     [ normals ] 2keep 3array ;
 
-: model-path "bun_zipper.ply" temp-file ;
+: model-path ( -- path ) "bun_zipper.ply" temp-file ;
 
-: model-url "http://factorcode.org/bun_zipper.ply" ;
+: model-url ( -- url ) "http://factorcode.org/bun_zipper.ply" ;
 
 : maybe-download ( -- path )
     model-path dup exists? [
@@ -66,7 +64,7 @@ TUPLE: bunny-buffers array element-array nv ni ;
     {
         [
             [ first concat ] [ second concat ] bi
-            append >float-array
+            append >c-float-array
             GL_ARRAY_BUFFER swap GL_STATIC_DRAW <gl-buffer>
         ]
         [
@@ -81,15 +79,15 @@ GENERIC: bunny-geom ( geom -- )
 GENERIC: draw-bunny ( geom draw -- )
 
 M: bunny-dlist bunny-geom
-    bunny-dlist-list glCallList ;
+    list>> glCallList ;
 
 M: bunny-buffers bunny-geom
-    dup { array>> element-array>> } get-slots [
+    dup [ array>> ] [ element-array>> ] bi [
         { GL_VERTEX_ARRAY GL_NORMAL_ARRAY } [
-            GL_DOUBLE 0 0 buffer-offset glNormalPointer
+            GL_FLOAT 0 0 buffer-offset glNormalPointer
             [
-                nv>> "double" heap-size * buffer-offset
-                3 GL_DOUBLE 0 roll glVertexPointer
+                nv>> "float" heap-size * buffer-offset
+                3 GL_FLOAT 0 roll glVertexPointer
             ] [
                 ni>>
                 GL_TRIANGLES swap GL_UNSIGNED_INT 0 buffer-offset glDrawElements
@@ -101,7 +99,7 @@ M: bunny-dlist dispose
     list>> delete-dlist ;
 
 M: bunny-buffers dispose
-    { array>> element-array>> } get-slots
+    [ array>> ] [ element-array>> ] bi
     delete-gl-buffer delete-gl-buffer ;
 
 : <bunny-geom> ( model -- geom )
diff --git a/extra/bunny/outlined/outlined.factor b/extra/bunny/outlined/outlined.factor
index f3ee4594c7..cd67b8b33e 100755
--- a/extra/bunny/outlined/outlined.factor
+++ b/extra/bunny/outlined/outlined.factor
@@ -139,11 +139,7 @@ TUPLE: bunny-outlined
 
 : <bunny-outlined> ( gadget -- draw )
     outlining-supported? [
-        pass1-program pass2-program {
-            (>>gadget)
-            (>>pass1-program)
-            (>>pass2-program)
-        } bunny-outlined construct
+        pass1-program pass2-program f f f f f bunny-outlined boa
     ] [ drop f ] if ;
 
 : (framebuffer-texture) ( dim iformat xformat -- texture )
@@ -181,10 +177,9 @@ TUPLE: bunny-outlined
     ] [ drop ] if ;
 
 : remake-framebuffer-if-needed ( draw -- )
-    dup [ gadget>> dim>> ] [ framebuffer-dim>> ] bi
-    over =
-    [ 2drop ] [
-        [ dup dispose-framebuffer dup ] dip {
+    dup [ gadget>> dim>> ] [ framebuffer-dim>> ] bi =
+    [ drop ] [
+        [ dispose-framebuffer ] [ dup ] [ gadget>> dim>> ] tri {
             [
                 GL_RGBA16F_ARB GL_RGBA (framebuffer-texture)
                 [ >>color-texture drop ] keep
@@ -196,7 +191,8 @@ TUPLE: bunny-outlined
                 [ >>depth-texture drop ] keep
             ]
         } 2cleave
-        (make-framebuffer) >>framebuffer drop
+        [ (make-framebuffer) >>framebuffer ] [ >>framebuffer-dim ] bi
+        drop
     ] if ;
 
 : clear-framebuffer ( -- )
@@ -220,13 +216,14 @@ TUPLE: bunny-outlined
         [ normal-texture>> GL_TEXTURE_2D GL_TEXTURE1 bind-texture-unit ]
         [ depth-texture>>  GL_TEXTURE_2D GL_TEXTURE2 bind-texture-unit ]
         [
-            pass2-program>> {
-                { "colormap"   [ 0 glUniform1i ] }
-                { "normalmap"  [ 1 glUniform1i ] }
-                { "depthmap"   [ 2 glUniform1i ] }
-                { "line_color" [ 0.1 0.0 0.1 1.0 glUniform4f ] }
-            } [ { -1.0 -1.0 } { 1.0 1.0 } rect-vertices ]
-            with-gl-program
+            pass2-program>> [
+                {
+                    [ "colormap"   glGetUniformLocation 0 glUniform1i ]
+                    [ "normalmap"  glGetUniformLocation 1 glUniform1i ]
+                    [ "depthmap"   glGetUniformLocation 2 glUniform1i ]
+                    [ "line_color" glGetUniformLocation 0.1 0.0 0.1 1.0 glUniform4f ]
+                } cleave { -1.0 -1.0 } { 1.0 1.0 } rect-vertices
+            ] with-gl-program
         ]
     } cleave ;
 
diff --git a/extra/calendar/backend/backend.factor b/extra/calendar/backend/backend.factor
deleted file mode 100644
index 56ccf9e6cc..0000000000
--- a/extra/calendar/backend/backend.factor
+++ /dev/null
@@ -1,4 +0,0 @@
-USING: kernel system ;
-IN: calendar.backend
-
-HOOK: gmt-offset os ( -- hours minutes seconds )
diff --git a/extra/calendar/windows/tags.txt b/extra/calendar/windows/tags.txt
deleted file mode 100644
index 8e1a55995e..0000000000
--- a/extra/calendar/windows/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-windows
diff --git a/extra/cfdg/cfdg.factor b/extra/cfdg/cfdg.factor
index 63fd55a550..121c835105 100644
--- a/extra/cfdg/cfdg.factor
+++ b/extra/cfdg/cfdg.factor
@@ -3,40 +3,18 @@ USING: kernel alien.c-types combinators namespaces arrays
        sequences sequences.lib namespaces.lib splitting
        math math.functions math.vectors math.trig
        opengl.gl opengl.glu opengl ui ui.gadgets.slate
-       vars
-       random-weighted colors.hsv cfdg.gl ;
-
+       vars colors self self.slots
+       random-weighted colors.hsv cfdg.gl accessors
+       ui.gadgets.handler ui.gestures assocs ui.gadgets macros
+       qualified ;
+QUALIFIED: syntax
 IN: cfdg
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-! hsba { hue saturation brightness alpha }
+SELF-SLOTS: hsva
 
-: <hsba> 4array ;
-
-VAR: color
-
-! ( -- val )
-
-: hue>>        0 color> nth ;
-: saturation>> 1 color> nth ;
-: brightness>> 2 color> nth ;
-: alpha>>      3 color> nth ;
-
-! ( val -- )
-
-: >>hue        0 color> set-nth ;
-: >>saturation 1 color> set-nth ;
-: >>brightness 2 color> set-nth ;
-: >>alpha      3 color> set-nth ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: hsva>rgba ( hsva -- rgba ) [ 3 head hsv>rgb ] [ peek ] bi suffix ;
-
-: gl-set-hsba ( hsva -- ) hsva>rgba gl-color ;
-
-: gl-clear-hsba ( hsva -- ) hsva>rgba gl-clear ;
+: clear-color ( color -- ) set-clear-color GL_COLOR_BUFFER_BIT glClear ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -50,18 +28,18 @@ VAR: color
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: hue ( num -- ) hue>> + 360 mod >>hue ;
+: hue ( num -- ) hue-> + 360 mod ->hue ;
 
-: saturation ( num -- ) saturation>> swap adjust >>saturation ;
-: brightness ( num -- ) brightness>> swap adjust >>brightness ;
-: alpha      ( num -- ) alpha>>      swap adjust >>alpha ;
+: saturation ( num -- ) saturation-> swap adjust ->saturation ;
+: brightness ( num -- ) value->      swap adjust ->value ;
+: alpha      ( num -- ) alpha->      swap adjust ->alpha ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: h   hue ;
-: sat saturation ;
-: b   brightness ;
-: a   alpha ;
+: h   ( num -- ) hue ;
+: sat ( num -- ) saturation ;
+: b   ( num -- ) brightness ;
+: a   ( num -- ) alpha ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -69,9 +47,9 @@ VAR: color-stack
 
 : init-color-stack ( -- ) V{ } clone >color-stack ;
 
-: push-color ( -- ) color> color-stack> push   color> clone >color ;
+: push-color ( -- ) self> color-stack> push   self> clone >self ;
 
-: pop-color ( -- ) color-stack> pop dup >color gl-set-hsba ;
+: pop-color ( -- ) color-stack> pop dup >self set-color ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -102,11 +80,11 @@ VAR: threshold
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : circle ( -- )
-  color> gl-set-hsba
+  self> set-color
   gluNewQuadric dup 0 0.5 20 10 gluDisk gluDeleteQuadric ;
 
 : triangle ( -- )
-  color> gl-set-hsba
+  self> set-color
   GL_POLYGON glBegin
     0    0.577 glVertex2d
     0.5 -0.289 glVertex2d
@@ -114,7 +92,7 @@ VAR: threshold
   glEnd ;
 
 : square ( -- )
-  color> gl-set-hsba
+  self> set-color
   GL_POLYGON glBegin
     -0.5  0.5 glVertex2d
      0.5  0.5 glVertex2d
@@ -138,10 +116,10 @@ VAR: threshold
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: s  size ;
-: s* size* ;
-: r  rotate ;
-: f  flip ;
+: s  ( scale -- ) size ;
+: s* ( scale-x scale-y -- ) size* ;
+: r  ( angle -- ) rotate ;
+: f  ( angle -- ) flip ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -154,20 +132,39 @@ VAR: threshold
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: recursive ( quot -- ) iterate? swap when ;
+: recursive ( quot -- ) iterate? swap when ; inline
 
 : multi ( seq -- ) random-weighted* call ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
+: [rules] ( seq -- quot )
+  [ unclip swap [ [ do ] curry ] map concat 2array ] map
+  [ call-random-weighted ] swap prefix
+  [ when ] swap prefix
+  [ iterate? ] swap append ;
+
+MACRO: rules ( seq -- quot ) [rules] ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: [rule] ( seq -- quot )
+  [ [ do ] swap prefix ] map concat
+  [ when ] swap prefix
+  [ iterate? ] prepend ;
+
+MACRO: rule ( seq -- quot ) [rule] ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
 VAR: background
 
-: set-initial-background ( -- ) { 0 0 1 1 } clone >color ;
+: set-initial-background ( -- ) T{ hsva f 0 0 1 1 } clone >self ;
 
 : set-background ( -- )
   set-initial-background
   background> call
-  color> gl-clear-hsba ;
+  self> clear-color ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -177,7 +174,29 @@ VAR: viewport ! { left width bottom height }
 
 VAR: start-shape
 
-: set-initial-color ( -- ) { 0 0 0 1 } clone >color ;
+: set-initial-color ( -- ) T{ hsva f 0 0 0 1 } clone >self ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYMBOL: dlist
+
+! : build-model-dlist ( -- )
+!   1 glGenLists dlist set
+!   dlist get GL_COMPILE_AND_EXECUTE glNewList
+!   start-shape> call
+!   glEndList ;
+
+: build-model-dlist ( -- )
+  1 glGenLists dlist set
+  dlist get GL_COMPILE_AND_EXECUTE glNewList
+
+  set-initial-color
+
+  self> set-color
+
+  start-shape> call
+      
+  glEndList ;
 
 : display ( -- )
 
@@ -196,15 +215,43 @@ VAR: start-shape
   init-modelview-matrix-stack
   init-color-stack
 
-  set-initial-color
+  dlist get not
+    [ build-model-dlist ]
+    [ dlist get glCallList ]
+  if ;
 
-  color> gl-set-hsba
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-  start-shape> call ;
+: delete-dlist ( -- ) dlist get [ dlist get 1 glDeleteLists dlist off ] when ;
 
 : cfdg-window* ( -- )
-  [ display ] closed-quot <slate>
-  { 500 500 } over set-slate-dim
+  C[ display ] <slate>
+    { 500 500 }       >>pdim
+    C[ delete-dlist ] >>ungraft
   dup "CFDG" open-window ;
 
-: cfdg-window ( -- ) [ cfdg-window* ] with-ui ;
\ No newline at end of file
+: cfdg-window ( -- ) [ cfdg-window* ] with-ui ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYMBOL: the-slate
+
+: rebuild ( -- ) delete-dlist the-slate get relayout-1 ;
+
+: <cfdg-gadget> ( -- slate )
+  C[ display ] <slate>
+    dup the-slate set
+    { 500 500 } >>pdim
+    C[ dlist get [ dlist get 1 glDeleteLists ] when ] >>ungraft
+  <handler>
+    H{ } clone
+      T{ key-down f f "ENTER" } C[ drop rebuild ] swap pick set-at
+      T{ button-down } C[ drop rebuild ] swap pick set-at
+    >>table ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USE: fry
+
+: cfdg-window. ( quot -- )
+  '[ [ @ <cfdg-gadget> "CFDG" open-window ] with-scope ] with-ui ;
\ No newline at end of file
diff --git a/extra/cfdg/models/aqua-star/aqua-star.factor b/extra/cfdg/models/aqua-star/aqua-star.factor
index f692328515..dbb7eb5ed0 100644
--- a/extra/cfdg/models/aqua-star/aqua-star.factor
+++ b/extra/cfdg/models/aqua-star/aqua-star.factor
@@ -25,11 +25,12 @@ iterate? [
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ -1 b ] >background
-{ -60 140 -120 140 } viewport set
-0.1 threshold set
-[ anemone-begin ] start-shape set
-cfdg-window ;
+: init ( -- )
+  [ -1 b ]             >background
+  { -60 140 -120 140 } >viewport
+  0.1                  >threshold
+  [ anemone-begin ]    >start-shape ;
+
+: run ( -- ) [ init ] cfdg-window. ;
 
 MAIN: run
diff --git a/extra/cfdg/models/aqua-star/tags.txt b/extra/cfdg/models/aqua-star/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/aqua-star/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/chiaroscuro/chiaroscuro.factor b/extra/cfdg/models/chiaroscuro/chiaroscuro.factor
index 31f78c459e..d0474cdcb4 100644
--- a/extra/cfdg/models/chiaroscuro/chiaroscuro.factor
+++ b/extra/cfdg/models/chiaroscuro/chiaroscuro.factor
@@ -5,35 +5,34 @@ USING: kernel namespaces sequences math
 
 IN: cfdg.models.chiaroscuro
 
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
 DEFER: white
 
-: black ( -- ) iterate? [
-  { { 60 [ [ 0.6 s circle ] do
-           [ 0.1 x 5 r 0.99 s -0.01 b -0.01 a black ] do ] }
-    { 1 [ white black ] } }
-  call-random-weighted
-] when ;
+: black ( -- )
+  {
+    { 60 [ 0.6 s circle ] [ 0.1 x 5 r 0.99 s -0.01 b -0.01 a black ] }
+    {  1 [ white black ]                                             }
+  }
+  rules ;
 
-: white ( -- ) iterate? [
-  { { 60 [
-           [ 0.6 s circle ] do
-           [ 0.1 x -5 r 0.99 s 0.01 b -0.01 a white ] do
-         ] }
-    { 1 [
-          black white
-        ] } }
-  call-random-weighted
-] when ;
+: white ( -- )
+  {
+    { 60 [ 0.6 s circle ] [ 0.1 x -5 r 0.99 s 0.01 b -0.01 a white ] }
+    {  1 [ black white ] }
+  }
+  rules ;
 
-: chiaroscuro ( -- ) [ 0.5 b black ] do ;
+: chiaroscuro ( -- ) { [ 0.5 b black ] } rule ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ -0.5 b ] >background
-{ -3 6 -2 6 } viewport set
-0.01 threshold set
-[ chiaroscuro ] start-shape set
-cfdg-window ;
+: init ( -- )
+  [ -0.5 b ]      >background
+  { -3 6 -2 6 }   >viewport
+  0.03            >threshold  
+  [ chiaroscuro ] >start-shape ;
+
+: run ( -- ) [ init ] cfdg-window. ;
 
 MAIN: run
diff --git a/extra/cfdg/models/chiaroscuro/tags.txt b/extra/cfdg/models/chiaroscuro/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/chiaroscuro/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/flower6/flower6.factor b/extra/cfdg/models/flower6/flower6.factor
index b77968c863..91fecd7fe5 100644
--- a/extra/cfdg/models/flower6/flower6.factor
+++ b/extra/cfdg/models/flower6/flower6.factor
@@ -18,12 +18,13 @@ iterate? [
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ ] >background
-{ -1 2 -1 2 } viewport set
-0.01 threshold set
-[ flower6 ] start-shape set
-cfdg-window ;
+: init ( -- )
+  [ ]           >background
+  { -1 2 -1 2 } >viewport
+  0.01          >threshold
+  [ flower6 ]   >start-shape ;
+
+: run ( -- ) [ init ] cfdg-window. ;
 
 MAIN: run
 
diff --git a/extra/cfdg/models/flower6/tags.txt b/extra/cfdg/models/flower6/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/flower6/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/game1-turn6/game1-turn6.factor b/extra/cfdg/models/game1-turn6/game1-turn6.factor
index 0cd65242fb..5e512cd74a 100644
--- a/extra/cfdg/models/game1-turn6/game1-turn6.factor
+++ b/extra/cfdg/models/game1-turn6/game1-turn6.factor
@@ -6,29 +6,35 @@ IN: cfdg.models.game1-turn6
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: f-triangles ( -- ) iterate? [
-[ 0.1 x 0.1 y -0.33 alpha 20 hue 0.7 sat 0.8 b triangle ] do
-[ 10 hue 0.9 sat 0.33 b triangle ] do
-[ 0.9 s 10 hue 0.5 sat 1 b triangle ] do
-[ 0.8 s 5 r f-triangles ] do
-] when ;
+: f-triangles ( -- )
+  {
+    [ 0.1 x 0.1 y -0.33 alpha 20 hue 0.7 sat 0.80 b triangle ]
+    [                         10 hue 0.9 sat 0.33 b triangle ]
+    [ 0.9 s                   10 hue 0.5 sat 1.00 b triangle ]
+    [ 0.8 s 5 r f-triangles ]
+  }
+  rule ;
 
-: f-squares ( -- ) iterate? [
-[ 0.1 x 0.1 y -0.33 alpha 250 hue 0.7 sat 0.8 b square ] do
-[ 220 hue 0.9 sat 0.33 b square ] do
-[ 0.9 s 220 hue 0.25 sat 1 b square ] do
-[ 0.8 s 5 r f-squares ] do
-] when ;
+: f-squares ( -- )
+  {
+    [ 0.1 x 0.1 y -0.33 alpha 250 hue 0.70 sat 0.80 b square ]
+    [                         220 hue 0.90 sat 0.33 b square ]
+    [ 0.9 s                   220 hue 0.25 sat 1.00 b square ]
+    [ 0.8 s 5 r f-squares ]
+  }
+  rule ;
 
 DEFER: start
 
-: spiral ( -- ) iterate? [
-  { { 1 [ f-squares
-          [ 0.5 x 0.5 y 45 r f-triangles ] do
-          [ 1 y 25 r 0.9 s spiral ] do ] }
-    { 0.022 [ [ 90 flip 50 hue start ] do ] } }
-  call-random-weighted
-] when ;
+: spiral ( -- )
+  {
+    { 1 [ f-squares ]
+        [ 0.5 x 0.5 y 45 r f-triangles ]
+        [ 1 y 25 r 0.9 s spiral ] }
+            
+    { 0.022 [ 90 flip 50 hue start ] }
+  }
+  rules ;
 
 : start ( -- )
   [       spiral ] do
@@ -37,11 +43,12 @@ DEFER: start
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ 66 hue 0.4 sat 0.5 b ] >background
-{ -5 10 -5 10 } viewport set
-0.001 >threshold
-[ start ] >start-shape
-cfdg-window ;
+: init ( -- )
+  [ 66 hue 0.4 sat 0.5 b ] >background
+  { -5 10 -5 10 }          >viewport
+  0.001                    >threshold
+  [ start ]                >start-shape ;
+
+: run ( -- ) [ init ] cfdg-window. ;
 
 MAIN: run
\ No newline at end of file
diff --git a/extra/cfdg/models/game1-turn6/tags.txt b/extra/cfdg/models/game1-turn6/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/game1-turn6/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/lesson/lesson.factor b/extra/cfdg/models/lesson/lesson.factor
index 287e572929..5902c121ae 100644
--- a/extra/cfdg/models/lesson/lesson.factor
+++ b/extra/cfdg/models/lesson/lesson.factor
@@ -96,12 +96,13 @@ iterate? [
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ ] >background
-{ -5 25 -15 25 } viewport set
-0.03 threshold set
-[ toc ] start-shape set
-cfdg-window ;
+: init ( -- )
+  [ ]              >background
+  { -5 25 -15 25 } >viewport
+  0.03             >threshold
+  [ toc ]          >start-shape ;
+
+: run ( -- ) [ init ] cfdg-window. ;
 
 MAIN: run
 
diff --git a/extra/cfdg/models/lesson/tags.txt b/extra/cfdg/models/lesson/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/lesson/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/rules08/rules08.factor b/extra/cfdg/models/rules08/rules08.factor
new file mode 100644
index 0000000000..f5398582c9
--- /dev/null
+++ b/extra/cfdg/models/rules08/rules08.factor
@@ -0,0 +1,48 @@
+
+USING: namespaces sequences math random-weighted cfdg ;
+
+IN: cfdg.models.rules08
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: insct ( -- )
+  [ 1.5 5.5 size* -1 brightness triangle ] do
+  10
+    [ [ [ 1 0.9 size* -0.15 y 0.05 brightness ] times 1 5 size* triangle ] do ]
+  each ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+DEFER: line
+
+: ligne ( -- )
+  {
+    { 1   [ 4.5 y 1.15 0.8 size* -0.3 b line ] }
+    { 0.5 [ ] }
+  }
+  rules ;
+
+: line ( -- ) { [ insct ligne ] } rule ;
+
+: sole ( -- )
+  {
+    { 1    [ 1 brightness 0.5 saturation ligne ] [ 140 r 1 hue sole ] }
+    { 0.01 [ ] }
+  }
+  rules ;
+
+: centre ( -- ) { [ 1 b 5 s circle ] [ sole ] } rule ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: init ( -- )
+  [ -1 b ] >background
+  { -20 40 -20 40 } viewport set
+  [ centre ] >start-shape
+  0.0001 >threshold ;
+
+: run ( -- ) [ init ] cfdg-window. ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MAIN: run
\ No newline at end of file
diff --git a/extra/cfdg/models/rules08/tags.txt b/extra/cfdg/models/rules08/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/rules08/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/sierpinski/sierpinski.factor b/extra/cfdg/models/sierpinski/sierpinski.factor
index 1acee8309a..2333506f29 100644
--- a/extra/cfdg/models/sierpinski/sierpinski.factor
+++ b/extra/cfdg/models/sierpinski/sierpinski.factor
@@ -26,14 +26,12 @@ iterate? [
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ ] >background
-{ -4 8 -4 8 } viewport set
-0.01 >threshold
-[ top ] >start-shape
-cfdg-window ;
-
-MAIN: run
-
+: init ( -- )
+  [ ]           >background
+  { -4 8 -4 8 } >viewport
+  0.01          >threshold
+  [ top ]       >start-shape ;
 
+: run ( -- ) [ init ] cfdg-window. ;
 
+MAIN: run
\ No newline at end of file
diff --git a/extra/cfdg/models/sierpinski/tags.txt b/extra/cfdg/models/sierpinski/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/sierpinski/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/snowflake/snowflake.factor b/extra/cfdg/models/snowflake/snowflake.factor
index 951f449e68..9efb3352fa 100644
--- a/extra/cfdg/models/snowflake/snowflake.factor
+++ b/extra/cfdg/models/snowflake/snowflake.factor
@@ -25,12 +25,13 @@ spike
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: run ( -- )
-[ ] >background
-{ -40 80 -40 80 } viewport set
-0.1 threshold set
-[ snowflake ] start-shape set
-cfdg-window ;
+: init ( -- )
+  [ ]               >background
+  { -40 80 -40 80 } >viewport
+  0.1               >threshold
+  [ snowflake ]     >start-shape ;
+
+: run ( -- ) [ init ] cfdg-window. ;
 
 MAIN: run
 
diff --git a/extra/cfdg/models/snowflake/tags.txt b/extra/cfdg/models/snowflake/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/snowflake/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/cfdg/models/spirales/spirales.factor b/extra/cfdg/models/spirales/spirales.factor
new file mode 100644
index 0000000000..f804b6ba83
--- /dev/null
+++ b/extra/cfdg/models/spirales/spirales.factor
@@ -0,0 +1,28 @@
+
+USING: namespaces sequences math random-weighted cfdg ;
+
+IN: cfdg.models.spirales
+
+DEFER: line
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: block ( -- ) { [ circle ] [ 0.3 s 60 flip line ] } rule ;
+
+: a1 ( -- ) { [ 0.95 s 2 x 12 r 0.5 b 10 hue 1.5 sat a1 ] [ block ] } rule ;
+
+: line ( -- ) -0.3 a { [ 0 r a1 ] [ 120 r a1 ] [ 240 r a1 ] } rule ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: init ( -- )
+  [ -1 b ]          >background
+  { -20 40 -20 40 } >viewport
+  [ line ]          >start-shape
+  0.04              >threshold ;
+
+: run ( -- ) [ init ] cfdg-window. ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MAIN: run
\ No newline at end of file
diff --git a/extra/cfdg/models/spirales/tags.txt b/extra/cfdg/models/spirales/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/cfdg/models/spirales/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/classes/tuple/lib/lib-docs.factor b/extra/classes/tuple/lib/lib-docs.factor
deleted file mode 100644
index 0c4c11e46f..0000000000
--- a/extra/classes/tuple/lib/lib-docs.factor
+++ /dev/null
@@ -1,29 +0,0 @@
-USING: help.syntax help.markup kernel prettyprint sequences ;
-IN: classes.tuple.lib
-
-HELP: >tuple<
-{ $values { "class" "a tuple class" } }
-{ $description "Explodes the tuple so that tuple slots are on the stack in the order listed in the tuple." }
-{ $example
-    "USING: kernel prettyprint classes.tuple.lib ;"
-    "IN: scratchpad"
-    "TUPLE: foo a b c ;"
-    "1 2 3 \\ foo boa \\ foo >tuple< .s"
-    "1\n2\n3"
-}
-{ $notes "Words using " { $snippet ">tuple<" } " may be compiled." }
-{ $see-also >tuple*< } ;
-
-HELP: >tuple*<
-{ $values { "class" "a tuple class" } }
-{ $description "Explodes the tuple so that tuple slots ending with '*' are on the stack in the order listed in the tuple." }
-{ $example
-    "USING: kernel prettyprint classes.tuple.lib ;"
-    "IN: scratchpad"
-    "TUPLE: foo a bb* ccc dddd* ;"
-    "1 2 3 4 \\ foo boa \\ foo >tuple*< .s"
-    "2\n4"
-}
-{ $notes "Words using " { $snippet ">tuple*<" } " may be compiled." }
-{ $see-also >tuple< } ;
-
diff --git a/extra/classes/tuple/lib/lib-tests.factor b/extra/classes/tuple/lib/lib-tests.factor
deleted file mode 100644
index 7f7f24ab56..0000000000
--- a/extra/classes/tuple/lib/lib-tests.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-USING: kernel tools.test classes.tuple.lib ;
-IN: classes.tuple.lib.tests
-
-TUPLE: foo a b* c d* e f* ;
-
-[ 1 2 3 4 5 6 ] [ 1 2 3 4 5 6 \ foo boa \ foo >tuple< ] unit-test
-[ 2 4 6 ] [ 1 2 3 4 5 6 \ foo boa \ foo >tuple*< ] unit-test
-
diff --git a/extra/classes/tuple/lib/lib.factor b/extra/classes/tuple/lib/lib.factor
deleted file mode 100755
index 10261a1df7..0000000000
--- a/extra/classes/tuple/lib/lib.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-! Copyright (C) 2007 Doug Coleman.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel macros sequences slots words mirrors ;
-IN: classes.tuple.lib
-
-: reader-slots ( seq -- quot )
-    [ slot-spec-reader ] map [ get-slots ] curry ;
-
-MACRO: >tuple< ( class -- )
-    all-slots rest-slice reader-slots ;
-
-MACRO: >tuple*< ( class -- )
-    all-slots
-    [ slot-spec-name "*" tail? ] filter
-    reader-slots ;
-
-
diff --git a/extra/cocoa/plists/plists.factor b/extra/cocoa/plists/plists.factor
deleted file mode 100644
index 9e05773f53..0000000000
--- a/extra/cocoa/plists/plists.factor
+++ /dev/null
@@ -1,19 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: strings arrays hashtables assocs sequences
-cocoa.messages cocoa.classes cocoa.application cocoa kernel
-namespaces io.backend ;
-IN: cocoa.plists
-
-: assoc>NSDictionary ( assoc -- alien )
-    NSMutableDictionary over assoc-size -> dictionaryWithCapacity:
-    [
-        [
-            spin [ <NSString> ] bi@ -> setObject:forKey:
-        ] curry assoc-each
-    ] keep ;
-
-: write-plist ( assoc path -- )
-    >r assoc>NSDictionary
-    r> normalize-path <NSString> 0 -> writeToFile:atomically:
-    [ "write-plist failed" throw ] unless ;
diff --git a/extra/cocoa/runtime/runtime.factor b/extra/cocoa/runtime/runtime.factor
deleted file mode 100644
index 7bfc31bc44..0000000000
--- a/extra/cocoa/runtime/runtime.factor
+++ /dev/null
@@ -1,87 +0,0 @@
-! Copyright (C) 2006, 2007 Slava Pestov
-! See http://factorcode.org/license.txt for BSD license.
-USING: alien.syntax ;
-IN: cocoa.runtime
-
-TYPEDEF: void* SEL
-
-TYPEDEF: void* id
-
-FUNCTION: char* sel_getName ( SEL aSelector ) ;
-
-FUNCTION: bool sel_isMapped ( SEL aSelector ) ;
-
-FUNCTION: SEL sel_registerName ( char* str ) ;
-
-C-STRUCT: objc-super
-    { "id" "receiver" }
-    { "void*" "class" } ;
-
-: CLS_CLASS        HEX: 1   ;
-: CLS_META         HEX: 2   ;
-: CLS_INITIALIZED  HEX: 4   ;
-: CLS_POSING       HEX: 8   ;
-: CLS_MAPPED       HEX: 10  ;
-: CLS_FLUSH_CACHE  HEX: 20  ;
-: CLS_GROW_CACHE   HEX: 40  ;
-: CLS_NEED_BIND    HEX: 80  ;
-: CLS_METHOD_ARRAY HEX: 100 ;
-
-C-STRUCT: objc-class
-    { "void*" "isa" }
-    { "void*" "super-class" }
-    { "char*" "name" }
-    { "long" "version" }
-    { "long" "info" }
-    { "long" "instance-size" }
-    { "void*" "ivars" }
-    { "void*" "methodLists" }
-    { "void*" "cache" }
-    { "void*" "protocols" } ;
-
-C-STRUCT: objc-object
-    { "objc-class*" "isa" } ;
-
-FUNCTION: int objc_getClassList ( void* buffer, int bufferLen ) ;
-
-FUNCTION: objc-class* objc_getClass ( char* class ) ;
-
-FUNCTION: objc-class* objc_getMetaClass ( char* class ) ;
-
-FUNCTION: objc-class* objc_getProtocol ( char* class ) ;
-
-FUNCTION: void objc_addClass ( objc-class* class ) ;
-
-FUNCTION: id class_createInstance ( objc-class* class, uint additionalByteCount ) ;
-
-FUNCTION: id class_createInstanceFromZone ( objc-class* class, uint additionalByteCount, void* zone ) ;
-
-C-STRUCT: objc-method
-    { "SEL" "name" }
-    { "char*" "types" }
-    { "void*" "imp" } ;
-
-FUNCTION: objc-method* class_getInstanceMethod ( objc-class* class, SEL selector ) ;
-
-FUNCTION: objc-method* class_getClassMethod ( objc-class* class, SEL selector ) ;
-
-C-STRUCT: objc-method-list
-    { "void*" "obsolete" }
-    { "int" "count" } ;
-
-FUNCTION: objc-method-list* class_nextMethodList ( objc-class* class, void** iterator ) ;
-
-FUNCTION: void class_addMethods ( objc-class* class, objc-method-list* methodList ) ;
-
-FUNCTION: void class_removeMethods ( objc-class* class, objc-method-list* methodList ) ;
-
-FUNCTION: uint method_getNumberOfArguments ( objc-method* method ) ;
-
-FUNCTION: uint method_getSizeOfArguments ( objc-method* method ) ;
-
-FUNCTION: uint method_getArgumentInfo ( objc-method* method, int argIndex, char** type, int* offset ) ;
-
-C-STRUCT: objc-protocol-list
-    { "void*" "next" }
-    { "int" "count" }
-    { "objc-class*" "class" } ;
diff --git a/extra/cocoa/subclassing/subclassing.factor b/extra/cocoa/subclassing/subclassing.factor
deleted file mode 100755
index 6b3e1d330e..0000000000
--- a/extra/cocoa/subclassing/subclassing.factor
+++ /dev/null
@@ -1,117 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov
-! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types alien.strings arrays assocs
-combinators compiler hashtables kernel libc math namespaces
-parser sequences words cocoa.messages cocoa.runtime
-compiler.units io.encodings.ascii ;
-IN: cocoa.subclassing
-
-: init-method ( method alien -- )
-    >r first3 r>
-    [ >r execute r> set-objc-method-imp ] keep
-    [ >r ascii malloc-string r> set-objc-method-types ] keep
-    >r sel_registerName r> set-objc-method-name ;
-
-: <empty-method-list> ( n -- alien )
-    "objc-method-list" heap-size
-    "objc-method" heap-size pick * + 1 calloc
-    [ set-objc-method-list-count ] keep ;
-
-: <method-list> ( methods -- alien )
-    dup length dup <empty-method-list> -rot
-    [ pick method-list@ objc-method-nth init-method ] 2each ;
-
-: define-objc-methods ( class methods -- )
-    <method-list> class_addMethods ;
-
-: <objc-class> ( name info -- class )
-    "objc-class" malloc-object
-    [ set-objc-class-info ] keep
-    [ >r ascii malloc-string r> set-objc-class-name ] keep ;
-
-: <protocol-list> ( name -- protocol-list )
-    "objc-protocol-list" malloc-object
-    1 over set-objc-protocol-list-count
-    swap objc-protocol over set-objc-protocol-list-class ;
-
-! The Objective C object model is a bit funny.
-! Every class has a metaclass.
-
-! The superclass of the metaclass of X is the metaclass of the
-! superclass of X.
-
-! The metaclass of the metaclass of X is the metaclass of the
-! root class of X.
-: meta-meta-class ( class -- class ) root-class objc-class-isa ;
-
-: copy-instance-size ( class -- )
-    dup objc-class-super-class objc-class-instance-size
-    swap set-objc-class-instance-size ;
-
-: <meta-class> ( superclass name -- class )
-    CLS_META <objc-class>
-    [ >r dup objc-class-isa r> set-objc-class-super-class ] keep
-    [ >r meta-meta-class r> set-objc-class-isa ] keep
-    dup copy-instance-size ;
-
-: set-protocols ( protocols class -- )
-    swap {
-        { [ dup empty? ] [ 2drop ] }
-        { [ dup length 1 = ] [
-            first <protocol-list>
-            swap set-objc-class-protocols
-        ] }
-    } cond ;
-
-: <new-class> ( protocols metaclass superclass name -- class )
-    CLS_CLASS <objc-class>
-    [ set-objc-class-super-class ] keep
-    [ set-objc-class-isa ] keep
-    [ set-protocols ] keep
-    dup copy-instance-size ;
-
-: (define-objc-class) ( protocols superclass name imeth -- )
-    >r
-    >r objc-class r>
-    [ <meta-class> ] 2keep <new-class> dup objc_addClass
-    r> <method-list> class_addMethods ;
-
-: encode-types ( return types -- encoding )
-    swap prefix [
-        alien>objc-types get at "0" append
-    ] map concat ;
-
-: prepare-method ( ret types quot -- type imp )
-    >r [ encode-types ] 2keep r> [
-        "cdecl" swap 4array % \ alien-callback ,
-    ] [ ] make define-temp ;
-
-: prepare-methods ( methods -- methods )
-    [
-        [ first4 prepare-method 3array ] map
-    ] with-compilation-unit ;
-
-: redefine-objc-methods ( imeth name -- )
-    dup class-exists? [
-        objc_getClass swap define-objc-methods
-    ] [
-        2drop
-    ] if ;
-
-SYMBOL: +name+
-SYMBOL: +protocols+
-SYMBOL: +superclass+
-
-: define-objc-class ( imeth hash -- )
-    clone [
-        prepare-methods
-        +name+ get "cocoa.classes" create drop
-        +name+ get 2dup redefine-objc-methods swap [
-            +protocols+ get , +superclass+ get , +name+ get , ,
-            \ (define-objc-class) ,
-        ] [ ] make import-objc-class
-    ] bind ;
-
-: CLASS:
-    parse-definition unclip
-    >hashtable define-objc-class ; parsing
diff --git a/extra/color-picker/color-picker.factor b/extra/color-picker/color-picker.factor
index 0480235dfe..4a0c148145 100755
--- a/extra/color-picker/color-picker.factor
+++ b/extra/color-picker/color-picker.factor
@@ -1,40 +1,49 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
+! Copyright (C) 2006, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.functions math.parser models sequences
-ui ui.gadgets ui.gadgets.frames
-ui.gadgets.labels ui.gadgets.packs ui.gadgets.sliders ui.render
-;
+USING: kernel math math.functions math.parser models
+       models.filter models.range models.compose sequences ui
+       ui.gadgets ui.gadgets.frames ui.gadgets.labels ui.gadgets.packs
+       ui.gadgets.sliders ui.render math.geometry.rect accessors
+       ui.gadgets.grids colors ;
 IN: color-picker
 
 ! Simple example demonstrating the use of models.
 
 : <color-slider> ( model -- gadget )
-    <x-slider> 1 over set-slider-line ;
+    <x-slider> 1 >>line ;
 
-TUPLE: color-preview ;
+TUPLE: color-preview < gadget ;
 
 : <color-preview> ( model -- gadget )
-    <gadget> color-preview construct-control
-    { 100 100 } over set-rect-dim ;
+    color-preview new-gadget
+      swap        >>model
+      { 100 100 } >>dim ;
 
 M: color-preview model-changed
-    swap model-value over set-gadget-interior relayout-1 ;
+    swap value>> >>interior relayout-1 ;
 
 : <color-model> ( model -- model )
-    [ [ 256 /f ] map 1 suffix <solid> ] <filter> ;
+    [ [ 256 /f ] map 1 suffix first4 rgba boa <solid> ] <filter> ;
 
 : <color-sliders> ( -- model gadget )
-    3 [ drop 0 0 0 255 <range> ] map
+    3 [ 0 0 0 255 <range> ] replicate
     dup [ range-model ] map <compose>
-    swap [ [ <color-slider> gadget, ] each ] make-filled-pile ;
+    swap
+    <filled-pile>
+    swap
+      [ <color-slider> add-gadget ] each ;
 
 : <color-picker> ( -- gadget )
-    [
-        <color-sliders> @top frame,
-        dup <color-model> <color-preview> @center frame,
-        [ [ truncate number>string ] map " " join ] <filter>
-        <label-control> @bottom frame,
-    ] make-frame ;
+  <frame>
+    <color-sliders>
+      swap dup
+      [                               @top    grid-add ]
+      [ <color-model> <color-preview> @center grid-add ]
+      [
+        [ [ truncate number>string ] map " " join ] <filter> <label-control>
+        @bottom grid-add
+      ]
+      tri* ;
 
 : color-picker-window ( -- )
     [ <color-picker> "Color Picker" open-window ] with-ui ;
diff --git a/extra/colors/colors.factor b/extra/colors/colors.factor
deleted file mode 100644
index 911f3d0b59..0000000000
--- a/extra/colors/colors.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-! Copyright (C) 2003, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-IN: colors
-
-: black { 0.0 0.0 0.0 1.0 } ;
-: blue { 0.0 0.0 1.0 1.0 } ;
-: cyan { 0 0.941 0.941 1 } ;
-: gray { 0.6 0.6 0.6 1.0 } ;
-: green { 0.0 1.0 0.0 1.0 } ;
-: light-gray { 0.95 0.95 0.95 0.95 } ;
-: light-purple { 0.8 0.8 1.0 1.0 } ;
-: magenta { 0.941 0 0.941 1 } ;
-: orange  { 0.941 0.627 0 1 } ;
-: purple  { 0.627 0 0.941 1 } ;
-: red { 1.0 0.0 0.0 1.0 } ;
-: white { 1.0 1.0 1.0 1.0 } ;
-: yellow { 1.0 1.0 0.0 1.0 } ;
diff --git a/extra/combinators/cleave/cleave-tests.factor b/extra/combinators/cleave/cleave-tests.factor
new file mode 100644
index 0000000000..94d8c3eae0
--- /dev/null
+++ b/extra/combinators/cleave/cleave-tests.factor
@@ -0,0 +1,19 @@
+
+USING: kernel math math.functions tools.test combinators.cleave ;
+
+IN: combinators.cleave.tests
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: unit-test* ( input output -- ) swap unit-test ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[ { [ 1 ] [ 2 ] [ 3 ] [ 4 ] } 0arr ]       [ { 1 2 3 4 } ] unit-test*
+
+[ 3 { 1+ 1- 2^ } 1arr ]                    [ { 4 2 8 } ]   unit-test*
+
+[ 3 4 { [ + ] [ - ] [ ^ ] } 2arr ]         [ { 7 -1 81 } ] unit-test*
+
+[ 1 2 3 { [ + + ] [ - - ] [ * * ] } 3arr ] [ { 6 2 6 } ]   unit-test*
+
diff --git a/extra/combinators/cleave/cleave.factor b/extra/combinators/cleave/cleave.factor
old mode 100644
new mode 100755
index 8018adaaa4..f5aeeff619
--- a/extra/combinators/cleave/cleave.factor
+++ b/extra/combinators/cleave/cleave.factor
@@ -1,17 +1,36 @@
 
-USING: kernel arrays sequences macros combinators ;
+USING: kernel combinators words quotations arrays sequences locals macros
+       shuffle combinators.lib generalizations fry ;
 
 IN: combinators.cleave
 
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: >quot ( obj -- quot ) dup word? [ 1quotation ] when ;
+
+: >quots ( seq -- seq ) [ >quot ] map ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+:: [ncleave] ( SEQ N -- quot )
+   SEQ >quots [ [ N nkeep ] curry ] map concat [ N ndrop ] append >quotation ;
+
+MACRO: ncleave ( seq n -- quot ) [ncleave] ;
+
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 ! Cleave into array
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-USING: words quotations fry arrays.lib ;
+: [narr] ( seq n -- quot ) over length '[ , , ncleave , narray ] ;
 
-: >quot ( obj -- quot ) dup word? [ 1quotation ] when ;
+MACRO: narr ( seq n -- array ) [narr] ;
 
-: >quots ( seq -- seq ) [ >quot ] map ;
+MACRO: 0arr ( seq -- array ) 0 [narr] ;
+MACRO: 1arr ( seq -- array ) 1 [narr] ;
+MACRO: 2arr ( seq -- array ) 2 [narr] ;
+MACRO: 3arr ( seq -- array ) 3 [narr] ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 MACRO: <arr> ( seq -- )
   [ >quots ] [ length ] bi
diff --git a/extra/combinators/conditional/conditional.factor b/extra/combinators/conditional/conditional.factor
new file mode 100644
index 0000000000..cb27ef3f55
--- /dev/null
+++ b/extra/combinators/conditional/conditional.factor
@@ -0,0 +1,17 @@
+
+USING: kernel combinators sequences macros fry newfx combinators.cleave ;
+
+IN: combinators.conditional
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MACRO: 1if ( test then else -- ) '[ dup @ , , if ] ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MACRO: 1cond ( tbl -- )
+  [ [ 1st [ dup ] prepend ] [ 2nd ] bi {2} ] map
+  [ cond ] prefix-on ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/combinators/lib/lib-docs.factor b/extra/combinators/lib/lib-docs.factor
index 355d5647df..cde3b4d259 100755
--- a/extra/combinators/lib/lib-docs.factor
+++ b/extra/combinators/lib/lib-docs.factor
@@ -12,45 +12,11 @@ HELP: generate
     "526367"
 } ;
 
-HELP: ndip
-{ $values { "quot" quotation } { "n" number } }
-{ $description "A generalisation of " { $link dip } " that can work " 
-"for any stack depth. The quotation will be called with a stack that "
-"has 'n' items removed first. The 'n' items are then put back on the "
-"stack. The quotation can consume and produce any number of items."
-} 
-{ $examples
-  { $example "USING: combinators.lib kernel prettyprint ;" "1 2 [ dup ] 1 ndip .s" "1\n1\n2" }
-  { $example "USING: combinators.lib kernel prettyprint ;" "1 2 3 [ drop ] 2 ndip .s" "2\n3" }
-}
-{ $see-also dip 2dip } ;
-
-HELP: nslip
-{ $values { "n" number } }
-{ $description "A generalisation of " { $link slip } " that can work " 
-"for any stack depth. The first " { $snippet "n" } " items after the quotation will be "
-"removed from the stack, the quotation called, and the items restored."
-} 
-{ $examples
-  { $example "USING: combinators.lib prettyprint ;" "[ 99 ] 1 2 3 4 5 5 nslip .s" "99\n1\n2\n3\n4\n5" }
-}
-{ $see-also slip nkeep } ;
-
-HELP: nkeep
-{ $values { "quot" quotation } { "n" number } }
-{ $description "A generalisation of " { $link keep } " that can work " 
-"for any stack depth. The first " { $snippet "n" } " items after the quotation will be "
-"saved, the quotation called, and the items restored."
-} 
-{ $examples
-  { $example "USING: combinators.lib kernel prettyprint ;" "1 2 3 4 5 [ drop drop drop drop drop 99 ] 5 nkeep .s" "99\n1\n2\n3\n4\n5" }
-}
-{ $see-also keep nslip } ;
-
-HELP: &&
-{ $values { "quots" "a sequence of quotations with stack effect " { $snippet "( ... -- ... ? )" } } { "?" "a boolean" } }
-{ $description "Calls each quotation in turn; outputs " { $link f } " if one of the quotations output " { $link f } ", otherwise outputs " { $link t } ". As soon as a quotation outputs " { $link f } ", evaluation stops and subsequent quotations are not called." } ;
-
-HELP: ||
-{ $values { "quots" "a sequence of quotations with stack effect " { $snippet "( ... -- ... ? )" } } { "?" "a boolean" } }
-{ $description "Calls each quotation in turn; outputs " { $link t } " if one of the quotations output " { $link t } ", otherwise outputs " { $link f } ". As soon as a quotation outputs " { $link t } ", evaluation stops and subsequent quotations are not called." } ;
+HELP: %chance
+{ $values { "quot" quotation } { "n" integer } }
+{ $description "Calls the quotation " { $snippet "n" } " percent of the time." }
+{ $unchecked-example
+    "USING: io ;"
+    "[ \"hello, world!  maybe.\" print ] 50 %chance"
+    ""
+} ;
diff --git a/extra/combinators/lib/lib-tests.factor b/extra/combinators/lib/lib-tests.factor
index 200a667b6b..838bb08b92 100755
--- a/extra/combinators/lib/lib-tests.factor
+++ b/extra/combinators/lib/lib-tests.factor
@@ -2,56 +2,23 @@ USING: combinators.lib kernel math random sequences tools.test continuations
     arrays vectors ;
 IN: combinators.lib.tests
 
+[ 6 -1 ] [ 5 0 1 [ + ] [ - ] bi, bi* ] unit-test
+[ 6 -1 1 ] [ 5 0 1 1 [ + ] [ - ] [ * ] tri, tri* ] unit-test
+
+[ 5 4 ] [ 5 0 1 [ + ] [ - ] bi*, bi ] unit-test
+[ 5 4 5 ] [ 5 0 1 1 [ + ] [ - ] [ * ] tri*, tri ] unit-test
+
+[ 5 6 ] [ 5 0 1 [ + ] bi@, bi ] unit-test
+[ 5 6 7 ] [ 5 0 1 2 [ + ] tri@, tri ] unit-test
+
 [ 5 ] [ [ 10 random ] [ 5 = ] generate ] unit-test
 [ t ] [ [ 10 random ] [ even? ] generate even? ] unit-test
 
-[ [ 99 ] 1 2 3 4 5 5 nslip ] must-infer
-{ 99 1 2 3 4 5 } [ [ 99 ] 1 2 3 4 5 5 nslip ] unit-test
-[ 1 2 3 4 5 [ drop drop drop drop drop 2 ] 5 nkeep ] must-infer
-{ 2 1 2 3 4 5 } [ 1 2 3 4 5 [ drop drop drop drop drop 2 ] 5 nkeep ] unit-test
-[ [ 1 2 3 + ] ] [ 1 2 3 [ + ] 3 ncurry ] unit-test
-[ 1 1 2 2 3 3 ] [ 1 2 3 [ dup ] 3apply ] unit-test
-[ 1 4 9 ] [ 1 2 3 [ sq ] 3apply ] unit-test
-[ [ sq ] 3apply ] must-infer
-[ { 1 2 } { 2 4 } { 3 8 } { 4 16 } { 5 32 } ] [ 1 2 3 4 5 [ dup 2^ 2array ] 5 napply ] unit-test
-[ [ dup 2^ 2array ] 5 napply ] must-infer
-
-[ { "xyc" "xyd" } ] [ "x" "y" { "c" "d" } [ 3append ] 2 nwith map ] unit-test
-
 [ { "foo" "xbarx" } ]
 [
     { "oof" "bar" } { [ reverse ] [ "x" swap "x" 3append ] } parallel-call
 ] unit-test
 
-! &&
-
-[ t ] [
-    3 {
-        [ dup number? ] [ dup odd? ] [ dup 0 > ]
-    } && nip
-] unit-test
-
-[ f ] [
-    3 {
-        [ dup number? ] [ dup even? ] [ dup 0 > ]
-    } && nip
-] unit-test
-
-! ||
-
-[ t ] [
-    4 {
-        [ dup array? ] [ dup number? ] [ 3 throw ]
-    } || nip
-] unit-test
-
-[ f ] [
-    4 {
-        [ dup array? ] [ dup vector? ] [ dup float? ]
-    } || nip
-] unit-test
-
-
 { 1 1 } [
     [ even? ] [ drop 1 ] [ drop 2 ] ifte
 ] must-infer-as
diff --git a/extra/combinators/lib/lib.factor b/extra/combinators/lib/lib.factor
index 3976b36cb9..b2577e6636 100755
--- a/extra/combinators/lib/lib.factor
+++ b/extra/combinators/lib/lib.factor
@@ -3,41 +3,40 @@
 !                          Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel combinators fry namespaces quotations hashtables
-sequences assocs arrays inference effects math math.ranges
-arrays.lib shuffle macros continuations locals ;
+sequences assocs arrays stack-checker effects math math.ranges
+generalizations macros continuations random locals accessors ;
 
 IN: combinators.lib
 
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! Currying cleave combinators
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: bi, ( obj quot quot -- quot' quot' )
+    [ [ curry ] curry ] bi@ bi ; inline
+: tri, ( obj quot quot quot -- quot' quot' quot' )
+    [ [ curry ] curry ] tri@ tri ; inline
+
+: bi*, ( obj obj quot quot -- quot' quot' )
+    [ [ curry ] curry ] bi@ bi* ; inline
+: tri*, ( obj obj obj quot quot quot -- quot' quot' quot' )
+    [ [ curry ] curry ] tri@ tri* ; inline
+
+: bi@, ( obj obj quot -- quot' quot' )
+    [ curry ] curry bi@ ; inline
+: tri@, ( obj obj obj quot -- quot' quot' quot' )
+    [ curry ] curry tri@ ; inline
+
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 ! Generalized versions of core combinators
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-MACRO: ndip ( quot n -- ) dup saver -rot restorer 3append ;
-
-MACRO: nslip ( n -- ) dup saver [ call ] rot restorer 3append ;
+: quad ( x p q r s -- ) >r >r >r keep r> keep r> keep r> call ; inline
 
 : 4slip ( quot a b c d -- a b c d ) 4 nslip ; inline
 
-MACRO: nkeep ( n -- )
-  [ ] [ 1+ ] [ ] tri
-  '[ [ , ndup ] dip , -nrot , nslip ] ;
-
 : 4keep ( w x y z quot -- w x y z ) 4 nkeep ; inline 
 
-MACRO: ncurry ( n -- ) [ curry ] n*quot ;
-
-MACRO:: nwith ( quot n -- )
-  [let | n' [ n 1+ ] |
-    [ n' -nrot [ n' nrot quot call ] n ncurry ] ] ;
-
-MACRO: napply ( n -- )
-  2 [a,b]
-  [ [ 1- ] [ ] bi
-    '[ , ntuck , nslip ] ]
-  map concat >quotation [ call ] append ;
-
-: 3apply ( obj obj obj quot -- ) 3 napply ; inline
-
 : 2with ( param1 param2 obj quot -- obj curry )
     with with ; inline
 
@@ -59,45 +58,12 @@ MACRO: napply ( n -- )
 : assoc-map-with ( obj assoc quot -- assoc )
     with* assoc-map ; inline
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-! short circuiting words
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: short-circuit ( quots quot default -- quot )
-  1quotation -rot { } map>assoc <reversed> alist>quot ;
-
-MACRO: && ( quots -- ? )
-    [ [ not ] append [ f ] ] t short-circuit ;
-
-MACRO: <-&& ( quots -- )
-    [ [ dup ] prepend [ not ] append [ f ] ] t short-circuit
-    [ nip ] append ;
-
-MACRO: <--&& ( quots -- )
-    [ [ 2dup ] prepend [ not ] append [ f ] ] t short-circuit
-    [ 2nip ] append ;
-
-! or
-
-MACRO: || ( quots -- ? ) [ [ t ] ] f short-circuit ;
-
-MACRO: 0|| ( quots -- ? ) [ [ t ] ] f short-circuit ;
-
-MACRO: 1|| ( quots -- ? )
-  [ [ dup ] prepend [ t ] ] f short-circuit [ nip ] append ;
-
-MACRO: 2|| ( quots -- ? )
-  [ [ 2dup ] prepend [ t ] ] f short-circuit [ 2nip ] append ;
-
-MACRO: 3|| ( quots -- ? )
-  [ [ 3dup ] prepend [ t ] ] f short-circuit [ 3nip ] append ;
-
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 ! ifte
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 MACRO: preserving ( predicate -- quot )
-    dup infer effect-in
+    dup infer in>>
     dup 1+
     '[ , , nkeep , nrot ] ;
 
@@ -173,7 +139,7 @@ MACRO: multikeep ( word out-indexes -- ... )
     [ drop ] rot compose attempt-all ; inline
 
 : do-while ( pred body tail -- )
-    >r tuck 2slip r> while ;
+    >r tuck 2slip r> while ; inline
 
 : generate ( generator predicate -- obj )
     [ dup ] swap [ dup [ nip ] unless not ] 3compose
@@ -183,3 +149,5 @@ MACRO: predicates ( seq -- quot/f )
     dup [ 1quotation [ drop ] prepend ] map
     >r [ [ dup ] prepend ] map r> zip [ drop f ] suffix
     [ cond ] curry ;
+
+: %chance ( quot n -- ) 100 random > swap when ; inline
diff --git a/extra/xmode/utilities/authors.txt b/extra/cords/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/xmode/utilities/authors.txt
rename to extra/cords/authors.txt
diff --git a/extra/cords/cords-tests.factor b/extra/cords/cords-tests.factor
new file mode 100644
index 0000000000..0058c8f07a
--- /dev/null
+++ b/extra/cords/cords-tests.factor
@@ -0,0 +1,5 @@
+IN: cords.tests
+USING: cords strings tools.test kernel sequences ;
+
+[ "hello world" ] [ "hello" " world" cord-append dup like ] unit-test
+[ "hello world" ] [ { "he" "llo" " world" } cord-concat dup like ] unit-test
diff --git a/extra/cords/cords.factor b/extra/cords/cords.factor
new file mode 100644
index 0000000000..915744491f
--- /dev/null
+++ b/extra/cords/cords.factor
@@ -0,0 +1,70 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs sequences sorting binary-search math
+math.order arrays combinators kernel ;
+IN: cords
+
+<PRIVATE
+
+TUPLE: simple-cord first second ;
+
+M: simple-cord length
+    [ first>> length ] [ second>> length ] bi + ;
+
+M: simple-cord virtual-seq first>> ;
+
+M: simple-cord virtual@
+    2dup first>> length <
+    [ first>> ] [ [ first>> length - ] [ second>> ] bi ] if ;
+
+TUPLE: multi-cord count seqs ;
+
+M: multi-cord length count>> ;
+
+M: multi-cord virtual@
+    dupd
+    seqs>> [ first <=> ] with search nip
+    [ first - ] [ second ] bi ;
+
+M: multi-cord virtual-seq
+    seqs>> [ f ] [ first second ] if-empty ;
+
+: <cord> ( seqs -- cord )
+    dup length 2 = [
+        first2 simple-cord boa
+    ] [
+        [ 0 [ length + ] accumulate ] keep zip multi-cord boa
+    ] if ;
+
+PRIVATE>
+
+UNION: cord simple-cord multi-cord ;
+
+INSTANCE: cord virtual-sequence
+
+INSTANCE: multi-cord virtual-sequence
+
+: cord-append ( seq1 seq2 -- cord )
+    {
+        { [ over empty? ] [ nip ] }
+        { [ dup empty? ] [ drop ] }
+        { [ 2dup [ cord? ] both? ] [ [ seqs>> values ] bi@ append <cord> ] }
+        { [ over cord? ] [ [ seqs>> values ] dip suffix <cord> ] }
+        { [ dup cord? ] [ seqs>> values swap prefix <cord> ] }
+        [ 2array <cord> ]
+    } cond ;
+
+: cord-concat ( seqs -- cord )
+    {
+        { [ dup empty? ] [ drop f ] }
+        { [ dup length 1 = ] [ first ] }
+        [
+            [
+                {
+                    { [ dup cord? ] [ seqs>> values ] }
+                    { [ dup empty? ] [ drop { } ] }
+                    [ 1array ]
+                } cond
+            ] map concat <cord>
+        ]
+    } cond ;
diff --git a/extra/cords/summary.txt b/extra/cords/summary.txt
new file mode 100644
index 0000000000..3c69862b71
--- /dev/null
+++ b/extra/cords/summary.txt
@@ -0,0 +1 @@
+Virtual sequence concatenation
diff --git a/extra/cords/tags.txt b/extra/cords/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/extra/cords/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/coroutines/coroutines.factor b/extra/coroutines/coroutines.factor
index 3fad3adbaa..3c1f8490c4 100644
--- a/extra/coroutines/coroutines.factor
+++ b/extra/coroutines/coroutines.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2005 Chris Double, 2007 Clemens Hofreither.
 ! See http://factorcode.org/license.txt for BSD license.
+USING: kernel hashtables namespaces continuations quotations
+accessors ;
 IN: coroutines
-USING: kernel hashtables namespaces continuations quotations ;
 
 SYMBOL: current-coro
 
@@ -13,12 +14,12 @@ TUPLE: coroutine resumecc exitcc ;
   [ swapd , , \ bind , 
     "Coroutine has terminated illegally." , \ throw ,
   ] [ ] make
-  over set-coroutine-resumecc ;
+  >>resumecc ;
 
 : coresume ( v co -- result )
   [ 
-    over set-coroutine-exitcc
-    coroutine-resumecc call
+    >>exitcc
+    resumecc>> call
     #! At this point, the coroutine quotation must have terminated
     #! normally (without calling coyield or coterminate). This shouldn't happen.
     f over
@@ -31,8 +32,8 @@ TUPLE: coroutine resumecc exitcc ;
   current-coro get
   [  
     [ continue-with ] curry
-    over set-coroutine-resumecc  
-    coroutine-exitcc continue-with
+    >>resumecc
+    exitcc>> continue-with
   ] callcc1 2nip ;
 
 : coyield* ( v -- ) coyield drop ; inline
@@ -40,5 +41,5 @@ TUPLE: coroutine resumecc exitcc ;
 
 : coterminate ( v -- )
   current-coro get
-  [ ] over set-coroutine-resumecc
-  coroutine-exitcc continue-with ;
+  [ ] >>resumecc
+  exitcc>> continue-with ;
diff --git a/extra/crypto/common/common.factor b/extra/crypto/common/common.factor
index efe4653eba..61cc11f959 100644
--- a/extra/crypto/common/common.factor
+++ b/extra/crypto/common/common.factor
@@ -1,55 +1,17 @@
-USING: arrays kernel io io.binary sbufs splitting strings sequences
-namespaces math math.parser parser hints math.bitfields.lib
-assocs ;
+USING: arrays kernel io io.binary sbufs splitting grouping
+strings sequences namespaces math math.parser parser
+hints math.bitwise assocs ;
 IN: crypto.common
 
-: w+ ( int int -- int ) + 32 bits ; inline
-
 : (nth-int) ( string n -- int )
     2 shift dup 4 + rot <slice> ; inline
     
 : nth-int ( string n -- int ) (nth-int) le> ; inline
     
-: nth-int-be ( string n -- int ) (nth-int) be> ; inline
-
 : update ( num var -- ) [ w+ ] change ; inline
-    
-: calculate-pad-length ( length -- pad-length )
-    dup 56 < 55 119 ? swap - ;
 
-: preprocess-plaintext ( string big-endian? -- padded-string )
-    #! pad 0x80 then 00 til 8 bytes left, then 64bit length in bits
-    >r >sbuf r> over [
-        HEX: 80 ,
-        dup length HEX: 3f bitand
-        calculate-pad-length 0 <string> %
-        length 3 shift 8 rot [ >be ] [ >le ] if %
-    ] "" make over push-all ;
-
-SYMBOL: bytes-read
 SYMBOL: big-endian?
 
-: pad-last-block ( str big-endian? length -- str )
-    [
-        rot %
-        HEX: 80 ,
-        dup HEX: 3f bitand calculate-pad-length 0 <string> %
-        3 shift 8 rot [ >be ] [ >le ] if %
-    ] "" make 64 group ;
-
-: update-old-new ( old new -- )
-    [ get >r get r> ] 2keep >r >r w+ dup r> set r> set ; inline
-
-: slice3 ( n seq -- a b c ) >r dup 3 + r> <slice> first3 ;
-
-: seq>2seq ( seq -- seq1 seq2 )
-    #! { abcdefgh } -> { aceg } { bdfh }
-    2 group flip dup empty? [ drop { } { } ] [ first2 ] if ;
-
-: 2seq>seq ( seq1 seq2 -- seq )
-    #! { aceg } { bdfh } -> { abcdefgh }
-    [ zip concat ] keep like ;
-
 : mod-nth ( n seq -- elt )
     #! 5 "abcd" -> b
     [ length mod ] [ nth ] bi ;
diff --git a/extra/ctags/authors.txt b/extra/ctags/authors.txt
new file mode 100644
index 0000000000..158cf94ea0
--- /dev/null
+++ b/extra/ctags/authors.txt
@@ -0,0 +1 @@
+Alfredo Beaumont
diff --git a/extra/ctags/ctags-docs.factor b/extra/ctags/ctags-docs.factor
new file mode 100644
index 0000000000..b984cdce54
--- /dev/null
+++ b/extra/ctags/ctags-docs.factor
@@ -0,0 +1,100 @@
+USING: help.syntax help.markup kernel prettyprint sequences strings words math ;
+IN: ctags
+
+ARTICLE: "ctags" "Ctags file"
+{ $emphasis "ctags" } " generates a index file of every factor word in ctags format as supported by vi and other editors. More information can be found at " { $url "http://en.wikipedia.org/wiki/Ctags" } "."
+{ $subsection ctags }
+{ $subsection ctags-write }
+{ $subsection ctag-strings }
+{ $subsection ctag }
+{ $subsection ctag-word }
+{ $subsection ctag-path }
+{ $subsection ctag-lineno } ;
+
+HELP: ctags ( path -- )
+{ $values { "path" "a pathname string" } }
+{ $description "Generates a index file in ctags format and stores in " { $snippet "path" } "." }
+{ $examples
+  { $unchecked-example
+    "USING: ctags ;"
+    "\"tags\" ctags"
+    ""
+  }
+} ;
+
+HELP: ctags-write ( seq path -- )
+{ $values { "seq" sequence }
+          { "path" "a pathname string" } }
+{ $description "Stores a " { $snippet "alist" } " in " { $snippet "path" } ". " { $snippet "alist" } " must be an association list with ctags format: key must be a valid word and value a sequence whose first element is a resource name and second element is a line number" }
+{ $examples
+  { $unchecked-example
+    "USING: kernel ctags ;"
+    "{ { if  { \"resource:extra/unix/unix.factor\" 91 } } } \"tags\" ctags-write"
+    ""
+  }
+}
+{ $notes
+  { $snippet "tags" } " file will contain a single line: if\\t/path/to/factor/extra/unix/unix.factor\\t91" } ;
+
+HELP: ctag-strings ( alist -- seq )
+{ $values { "alist" "an association list" }
+          { "seq" sequence } }
+{ $description "Converts an " { $snippet "alist" } " with ctag format (a word as key and a sequence whose first element is a resource name and a second element is a line number as value) in a " { $snippet "seq" } " of ctag strings." }
+{ $examples
+  { $unchecked-example
+    "USING: kernel ctags prettyprint ;"
+    "{ { if  { \"resource:extra/unix/unix.factor\" 91 } } } ctag-strings ."
+    "{ \"if\\t/path/to/factor/extra/unix/unix.factor\\t91\" }"
+  }
+} ;
+
+HELP: ctag ( seq -- str )
+{ $values { "seq" sequence }
+          { "str" string } }
+{ $description "Outputs a string " { $snippet "str" } " in ctag format for sequence with two elements, first one must be a valid word and second one a sequence whose first element is a resource name and second element is a line number" }
+{ $examples
+  { $unchecked-example
+    "USING: kernel ctags prettyprint ;"
+    "{ if  { \"resource:extra/unix/unix.factor\" 91 } } ctag ."
+    "\"if\\t/path/to/factor/extra/unix/unix.factor\\t91\""
+  }
+} ;
+
+HELP: ctag-lineno ( ctag -- n )
+{ $values { "ctag" sequence }
+          { "n" integer } }
+{ $description "Provides de line number " { $snippet "n" } " from a sequence in ctag format " }
+{ $examples
+  { $example
+    "USING: kernel ctags prettyprint ;"
+    "{ if  { \"resource:extra/unix/unix.factor\" 91 } } ctag-lineno ."
+    "91"
+  }
+} ;
+
+HELP: ctag-path ( ctag -- path )
+{ $values { "ctag" sequence }
+          { "path" string } }
+{ $description "Provides a path string " { $snippet "path" } " from a sequence in ctag format" }
+{ $examples
+  { $example
+    "USING: kernel ctags prettyprint ;"
+    "{ if  { \"resource:extra/unix/unix.factor\" 91 } } ctag-path ."
+    "\"resource:extra/unix/unix.factor\""
+  }
+} ;
+
+HELP: ctag-word ( ctag -- word )
+{ $values { "ctag" sequence }
+          { "word" word } }
+{ $description "Provides the " { $snippet "word" } " from a sequence in ctag format " }
+{ $examples
+  { $example
+    "USING: kernel ctags prettyprint ;"
+    "{ if  { \"resource:extra/unix/unix.factor\" 91 } } ctag-word ."
+    "if"
+  }
+} ;
+
+
+ABOUT: "ctags"
diff --git a/extra/ctags/ctags-tests.factor b/extra/ctags/ctags-tests.factor
new file mode 100644
index 0000000000..c54fe99217
--- /dev/null
+++ b/extra/ctags/ctags-tests.factor
@@ -0,0 +1,28 @@
+USING: kernel ctags tools.test io.backend sequences arrays prettyprint ;
+IN: ctags.tests
+
+[ t ] [
+  91
+  { if  { "resource:extra/unix/unix.factor" 91 } } ctag-lineno =
+] unit-test
+
+[ t ] [
+  "resource:extra/unix/unix.factor"
+  { if  { "resource:extra/unix/unix.factor" 91 } } ctag-path =
+] unit-test
+
+[ t ] [
+  \ if
+  { if  { "resource:extra/unix/unix.factor" 91 } } ctag-word =
+] unit-test
+
+[ t ] [
+  "if\t" "resource:extra/unix/unix.factor" normalize-path "\t91" 3append
+  { if  { "resource:extra/unix/unix.factor" 91 } } ctag =
+] unit-test
+
+[ t ] [
+  "if\t" "resource:extra/unix/unix.factor" normalize-path "\t91" 3append 1array
+  { { if  { "resource:extra/unix/unix.factor" 91 } } } ctag-strings =
+] unit-test
+
diff --git a/extra/ctags/ctags.factor b/extra/ctags/ctags.factor
new file mode 100644
index 0000000000..e8c5608375
--- /dev/null
+++ b/extra/ctags/ctags.factor
@@ -0,0 +1,44 @@
+! Copyright (C) 2008 Alfredo Beaumont
+! See http://factorcode.org/license.txt for BSD license.
+
+! Simple Ctags generator
+! Alfredo Beaumont <alfredo.beaumont@gmail.com>
+
+USING: arrays kernel sequences io io.files io.backend
+io.encodings.ascii math.parser vocabs definitions
+namespaces words sorting ;
+IN: ctags
+
+: ctag-word ( ctag -- word )
+  first ;
+
+: ctag-path ( ctag -- path )
+  second first ;
+
+: ctag-lineno ( ctag -- n )
+  second second ;
+
+: ctag ( seq -- str )
+  [
+    dup ctag-word ?word-name %
+    "\t" %
+    dup ctag-path normalize-path %
+    "\t" %
+    ctag-lineno number>string %
+  ] "" make ;
+
+: ctag-strings ( seq1 -- seq2 )
+  [ ctag ] map ;
+
+: ctags-write ( seq path -- )
+  [ ctag-strings ] dip ascii set-file-lines ;
+
+: (ctags) ( -- seq )
+  all-words [
+    dup where [
+      2array
+    ] when*
+  ] map [ sequence? ] filter ;
+
+: ctags ( path -- )
+  (ctags) sort-keys swap ctags-write ;
\ No newline at end of file
diff --git a/extra/ctags/etags/authors.txt b/extra/ctags/etags/authors.txt
new file mode 100644
index 0000000000..158cf94ea0
--- /dev/null
+++ b/extra/ctags/etags/authors.txt
@@ -0,0 +1 @@
+Alfredo Beaumont
diff --git a/extra/ctags/etags/etags-docs.factor b/extra/ctags/etags/etags-docs.factor
new file mode 100644
index 0000000000..5bd4e10b54
--- /dev/null
+++ b/extra/ctags/etags/etags-docs.factor
@@ -0,0 +1,39 @@
+USING: help.syntax help.markup kernel prettyprint sequences strings words math ;
+IN: ctags.etags
+
+ARTICLE: "etags" "Etags file"
+{ $emphasis "Etags" } " generates a index file of every factor word in etags format as supported by emacs and other editors. More information can be found at " { $url "http://en.wikipedia.org/wiki/Ctags#Etags_2" } "."
+{ $subsection etags }
+{ $subsection etags-write }
+{ $subsection etag-strings }
+{ $subsection etag-header }
+
+HELP: etags ( path -- )
+{ $values { "path" string } }
+{ $description "Generates a index file in etags format and stores in " { $snippet "path" } "." }
+{ $examples
+  { $unchecked-example
+    "USING: ctags.etags ;"
+    "\"ETAGS\" etags"
+    ""
+  }
+} ;
+
+HELP: etags-write ( alist path -- )
+{ $values { "alist" sequence }
+          { "path" string } }
+{ $description "Stores a " { $snippet "alist" } " in " { $snippet "path" } ". " { $snippet "alist" } " must be an association list with etags format: its key must be a resource path and its value a vector, containing pairs of words and lines" }
+{ $examples
+  { $unchecked-example
+    "USING: kernel etags.ctags ;"
+    "{ { \"resource:extra/unix/unix.factor\" V{ { dup2 91 } } } } \"ETAGS\" etags-write"
+    ""
+  }
+} ;
+
+HELP: etag-strings ( alist -- seq )
+{ $values { "alist" sequence }
+          { "seq" sequence } }
+{ $description "Converts an " { $snippet "alist" } " with etag format (a path as key and a vector containing word/line pairs) in a " { $snippet "seq" } " of strings." } ;
+
+ABOUT: "etags" ;
\ No newline at end of file
diff --git a/extra/ctags/etags/etags-tests.factor b/extra/ctags/etags/etags-tests.factor
new file mode 100644
index 0000000000..6ab97e0566
--- /dev/null
+++ b/extra/ctags/etags/etags-tests.factor
@@ -0,0 +1,72 @@
+USING: kernel ctags ctags.etags tools.test io.backend sequences arrays prettyprint hashtables assocs ;
+IN: ctags.etags.tests
+
+! etag-at
+[ t ]
+[
+  V{ }
+  "path" H{ } clone etag-at =
+] unit-test
+
+[ t ]
+[
+  V{ if { "path" 1 } }
+  "path" H{ { "path" V{ if { "path" 1 } } } } etag-at =
+] unit-test
+
+! etag-vector
+[ t ]
+[
+  V{ }
+  { if { "path" 1 } } H{ } clone etag-vector =
+] unit-test
+
+[ t ]
+[
+  V{ if { "path" 1 } }
+  { if { "path" 1 } }
+  { { "path" V{ if { "path" 1 } } } } >hashtable
+  etag-vector = 
+] unit-test
+
+! etag-pair 
+[ t ]
+[
+  { if 28 }
+  { if { "resource:core/kernel/kernel.factor" 28 } } etag-pair =
+] unit-test
+
+! etag-add
+[ t ]
+[
+  H{ { "path" V{ { if  1 } } } }
+  { if { "path" 1 } } H{ } clone [ etag-add ] keep =
+] unit-test
+
+! etag-hash
+[ t ]
+[
+  H{ { "path" V{ { if 1 } } } }
+  { { if { "path" 1 } } } etag-hash =
+] unit-test
+
+! line-bytes (note that for each line implicit \n is counted)
+[ t ]
+[
+  17
+  { "1234567890" "12345" } 2 lines>bytes =
+] unit-test
+  
+! etag
+[ t ]
+[
+  "if2,11"
+  { "1234567890" "12345" } { if 2 } etag =
+] unit-test
+
+! etag-length
+[ t ]
+[
+  14
+  V{ "if2,11" "if2,11" } etag-length =
+] unit-test
diff --git a/extra/ctags/etags/etags.factor b/extra/ctags/etags/etags.factor
new file mode 100644
index 0000000000..8cc8c284b1
--- /dev/null
+++ b/extra/ctags/etags/etags.factor
@@ -0,0 +1,75 @@
+! Copyright (C) 2008 Alfredo Beaumont
+! See http://factorcode.org/license.txt for BSD license.
+
+! Emacs Etags generator
+! Alfredo Beaumont <alfredo.beaumont@gmail.com>
+USING: kernel sequences sorting assocs words prettyprint ctags
+io.encodings.ascii io.files math math.parser namespaces strings locals
+shuffle io.backend arrays ;
+IN: ctags.etags
+
+: etag-at ( key hash -- vector )
+  at [ V{ } clone ] unless* ;
+
+: etag-vector ( alist hash -- vector )
+  [ ctag-path ] dip etag-at ;
+
+: etag-pair ( ctag -- seq )
+  dup [
+    first ,
+    second second ,
+  ] { } make ;
+
+: etag-add ( ctag hash -- )
+  [ etag-vector ] 2keep [
+    [ etag-pair ] [ ctag-path ] bi [ suffix ] dip
+  ] dip set-at ;
+    
+: etag-hash ( seq -- hash )
+  H{ } clone swap [ swap [ etag-add ] keep ] each ;
+
+: lines>bytes ( seq n -- bytes )
+  head 0 [ length 1+ + ] reduce ;
+
+: file>lines ( path -- lines )
+  ascii file-lines ;
+
+: etag ( lines seq -- str )
+  [
+    dup first ?word-name %
+    1 HEX: 7f <string> %
+    second dup number>string %
+    1 CHAR: , <string> %
+    1- lines>bytes number>string %
+  ] "" make ;
+
+: etag-length ( vector -- n )
+  0 [ length + ] reduce ;
+
+: (etag-header) ( n path -- str )
+  [
+    %
+    1 CHAR: , <string> %
+    number>string %
+  ] "" make ;
+
+: etag-header ( vec1 n resource -- vec2 )
+  normalize-path (etag-header) prefix
+  1 HEX: 0c <string> prefix ;
+
+: etag-strings ( alist -- seq )
+  { } swap [
+    [
+      [ first file>lines ]
+      [ second ] bi
+      [ etag ] with map
+      dup etag-length
+    ] keep first 
+    etag-header append
+  ] each ;
+
+: etags-write ( alist path -- )
+  [ etag-strings ] dip ascii set-file-lines ; 
+
+: etags ( path -- )
+  [ (ctags) sort-values etag-hash >alist ] dip etags-write ;
\ No newline at end of file
diff --git a/extra/ctags/etags/summary.txt b/extra/ctags/etags/summary.txt
new file mode 100644
index 0000000000..4766e20a87
--- /dev/null
+++ b/extra/ctags/etags/summary.txt
@@ -0,0 +1 @@
+Etags generator
diff --git a/extra/ctags/summary.txt b/extra/ctags/summary.txt
new file mode 100644
index 0000000000..2025e02521
--- /dev/null
+++ b/extra/ctags/summary.txt
@@ -0,0 +1 @@
+Ctags generator
diff --git a/extra/db/pools/pools-tests.factor b/extra/db/pools/pools-tests.factor
deleted file mode 100644
index f0534a1d34..0000000000
--- a/extra/db/pools/pools-tests.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-IN: db.pools.tests
-USING: db.pools tools.test ;
-
-\ <db-pool> must-infer
-
-{ 2 0 } [ [ ] with-db-pool ] must-infer-as
-
-{ 1 0 } [ [ ] with-pooled-db ] must-infer-as
diff --git a/extra/db/sql/sql.factor b/extra/db/sql/sql.factor
deleted file mode 100755
index 82c6e370bd..0000000000
--- a/extra/db/sql/sql.factor
+++ /dev/null
@@ -1,71 +0,0 @@
-USING: kernel parser quotations classes.tuple words math.order
-namespaces.lib namespaces sequences arrays combinators
-prettyprint strings math.parser sequences.lib math symbols ;
-IN: db.sql
-
-SYMBOLS: insert update delete select distinct columns from as
-where group-by having order-by limit offset is-null desc all
-any count avg table values ;
-
-: input-spec, 1, ;
-: output-spec, 2, ;
-: input, 3, ;
-: output, 4, ;
-
-DEFER: sql%
-
-: (sql-interleave) ( seq sep -- )
-    [ sql% ] curry [ sql% ] interleave ;
-
-: sql-interleave ( seq str sep -- )
-    swap sql% (sql-interleave) ;
-
-: sql-function, ( seq function -- )
-    sql% "(" sql% unclip sql% ")" sql% [ sql% ] each ;
-
-: sql-array% ( array -- )
-    unclip
-    {
-        { \ columns [ "," (sql-interleave) ] }
-        { \ from [ "from" "," sql-interleave ] }
-        { \ where [ "where" "and" sql-interleave ] }
-        { \ group-by [ "group by" "," sql-interleave ] }
-        { \ having [ "having" "," sql-interleave ] }
-        { \ order-by [ "order by" "," sql-interleave ] }
-        { \ offset [ "offset" sql% sql% ] }
-        { \ limit [ "limit" sql% sql% ] }
-        { \ select [ "(select" sql% sql% ")" sql% ] }
-        { \ table [ sql% ] }
-        { \ set [ "set" "," sql-interleave ] }
-        { \ values [ "values(" sql% "," (sql-interleave) ")" sql% ] }
-        { \ count [ "count" sql-function, ] }
-        { \ sum [ "sum" sql-function, ] }
-        { \ avg [ "avg" sql-function, ] }
-        { \ min [ "min" sql-function, ] }
-        { \ max [ "max" sql-function, ] }
-        [ sql% [ sql% ] each ]
-    } case ;
-
-ERROR: no-sql-match ;
-: sql% ( obj -- )
-    {
-        { [ dup string? ] [ " " 0% 0% ] }
-        { [ dup array? ] [ sql-array% ] }
-        { [ dup number? ] [ number>string sql% ] }
-        { [ dup symbol? ] [ unparse sql% ] }
-        { [ dup word? ] [ unparse sql% ] }
-        { [ dup quotation? ] [ call ] }
-        [ no-sql-match ]
-    } cond ;
-
-: parse-sql ( obj -- sql in-spec out-spec in out )
-    [
-        unclip {
-            { \ create [ "create table" sql% ] }
-            { \ drop [ "drop table" sql% ] }
-            { \ insert [ "insert into" sql% ] }
-            { \ update [ "update" sql% ] }
-            { \ delete [ "delete" sql% ] }
-            { \ select [ "select" sql% ] }
-        } case [ sql% ] each
-    ] { "" { } { } { } { } } nmake ;
diff --git a/extra/demos/demos.factor b/extra/demos/demos.factor
new file mode 100644
index 0000000000..40149bafa9
--- /dev/null
+++ b/extra/demos/demos.factor
@@ -0,0 +1,22 @@
+
+USING: kernel fry sequences
+       vocabs.loader tools.vocabs.browser
+       ui ui.gadgets ui.gadgets.buttons ui.gadgets.packs ui.gadgets.scrollers
+       ui.tools.listener
+       accessors ;
+
+IN: demos
+
+: demo-vocabs ( -- seq ) "demos" tagged [ second ] map concat [ name>> ] map ;
+
+: <run-vocab-button> ( vocab-name -- button )
+  dup '[ drop [ , run ] call-listener ] <bevel-button> { 0 0 } >>align ;
+
+: <demo-runner> ( -- gadget )
+  <pile> 1 >>fill demo-vocabs [ <run-vocab-button> add-gadget ] each ;
+
+: demos ( -- ) [ <demo-runner> <scroller> "Demos" open-window ] with-ui ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+MAIN: demos
\ No newline at end of file
diff --git a/extra/descriptive/descriptive.factor b/extra/descriptive/descriptive.factor
index 56d62d8634..4b40747e9f 100755
--- a/extra/descriptive/descriptive.factor
+++ b/extra/descriptive/descriptive.factor
@@ -1,12 +1,12 @@
 USING: words kernel sequences combinators.lib locals
 locals.private accessors parser namespaces continuations
-inspector definitions arrays.lib arrays ;
+summary definitions generalizations arrays ;
 IN: descriptive
 
 ERROR: descriptive-error args underlying word ;
 
 M: descriptive-error summary
-    word>> "The " swap word-name " word encountered an error."
+    word>> "The " swap name>> " word encountered an error."
     3append ;
 
 <PRIVATE
diff --git a/extra/disjoint-set/disjoint-set.factor b/extra/disjoint-set/disjoint-set.factor
deleted file mode 100644
index 6f3b1e63e8..0000000000
--- a/extra/disjoint-set/disjoint-set.factor
+++ /dev/null
@@ -1,72 +0,0 @@
-USING: accessors arrays hints kernel locals math sequences ;
-
-IN: disjoint-set
-
-<PRIVATE
-
-TUPLE: disjoint-set parents ranks counts ;
-
-: count ( a disjoint-set -- n )
-    counts>> nth ; inline
-
-: add-count ( p a disjoint-set -- )
-    [ count [ + ] curry ] keep counts>> swap change-nth ; inline
-
-: parent ( a disjoint-set -- p )
-    parents>> nth ; inline
-
-: set-parent ( p a disjoint-set -- )
-    parents>> set-nth ; inline
-
-: link-sets ( p a disjoint-set -- )
-    [ set-parent ]
-    [ add-count ] 3bi ; inline
-
-: rank ( a disjoint-set -- r )
-    ranks>> nth ; inline
-
-: inc-rank ( a disjoint-set -- )
-    ranks>> [ 1+ ] change-nth ; inline
-
-: representative? ( a disjoint-set -- ? )
-    dupd parent = ; inline
-
-: representative ( a disjoint-set -- p )
-    2dup representative? [ drop ] [
-        [ [ parent ] keep representative dup ] 2keep set-parent
-    ] if ;
-
-: representatives ( a b disjoint-set -- r r )
-    [ representative ] curry bi@ ; inline
-
-: ranks ( a b disjoint-set -- r r )
-    [ rank ] curry bi@ ; inline
-
-:: branch ( a b neg zero pos -- )
-    a b = zero [ a b < neg pos if ] if ; inline
-
-PRIVATE>
-
-: <disjoint-set> ( n -- disjoint-set )
-    [ >array ]
-    [ 0 <array> ]
-    [ 1 <array> ] tri
-    disjoint-set boa ;
-
-: equiv-set-size ( a disjoint-set -- n )
-    [ representative ] keep count ;
-
-: equiv? ( a b disjoint-set -- ? )
-    representatives = ; inline
-
-:: equate ( a b disjoint-set -- )
-    a b disjoint-set representatives
-    2dup = [ 2drop ] [
-        2dup disjoint-set ranks
-        [ swap ] [ over disjoint-set inc-rank ] [ ] branch
-        disjoint-set link-sets
-    ] if ;
-
-HINTS: equate disjoint-set ;
-HINTS: representative disjoint-set ;
-HINTS: equiv-set-size disjoint-set ;
diff --git a/extra/display-stack/display-stack.factor b/extra/display-stack/display-stack.factor
new file mode 100644
index 0000000000..8da252f294
--- /dev/null
+++ b/extra/display-stack/display-stack.factor
@@ -0,0 +1,43 @@
+
+USING: kernel namespaces sequences math
+       listener io prettyprint sequences.lib fry ;
+
+IN: display-stack
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYMBOL: watched-variables
+
+: watch-var ( sym -- ) watched-variables get push ;
+
+: watch-vars ( seq -- ) watched-variables get [ push ] curry each ;
+
+: unwatch-var ( sym -- ) watched-variables get delete ;
+
+: unwatch-vars ( seq -- ) watched-variables get [ delete ] curry each ;
+
+: print-watched-variables ( -- )
+  watched-variables get length 0 >
+    [
+      "----------" print
+      watched-variables get
+        watched-variables get [ unparse ] map longest length 2 +
+        '[ [ unparse ": " append , 32 pad-right write ] [ get . ] bi ]
+      each
+
+    ]
+  when ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: display-stack ( -- )
+  V{ } clone watched-variables set
+    [
+      print-watched-variables
+      "----------" print
+      datastack [ . ] each
+      "----------" print
+      retainstack reverse [ . ] each
+    ]
+  listener-hook set ;
+
diff --git a/extra/dns/dns.factor b/extra/dns/dns.factor
index 6386655a4e..214b45ce0c 100644
--- a/extra/dns/dns.factor
+++ b/extra/dns/dns.factor
@@ -1,5 +1,6 @@
 
-USING: kernel byte-arrays combinators strings arrays sequences splitting 
+USING: kernel byte-arrays combinators strings arrays sequences splitting
+       grouping
        math math.functions math.parser random
        destructors
        io io.binary io.sockets io.encodings.binary
@@ -382,7 +383,7 @@ SYMBOLS: NO-ERROR FORMAT-ERROR SERVER-FAILURE NAME-ERROR NOT-IMPLEMENTED
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: >> neg shift ;
+: >> ( x n -- y ) neg shift ;
 
 : get-header-bits ( ba i -- qr opcode aa tc rd ra z rcode )
     get-double
@@ -423,6 +424,10 @@ SYMBOLS: NO-ERROR FORMAT-ERROR SERVER-FAILURE NAME-ERROR NOT-IMPLEMENTED
   }
     2cleave message boa ;
 
+: ba->message ( ba -- message ) parse-message ;
+
+: with-message-bytes ( ba quot -- ) >r ba->message r> call message->ba ; inline
+
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : send-receive-udp ( ba server -- ba )
diff --git a/extra/dns/forwarding/forwarding.factor b/extra/dns/forwarding/forwarding.factor
index 1c60532bbc..87f9821153 100644
--- a/extra/dns/forwarding/forwarding.factor
+++ b/extra/dns/forwarding/forwarding.factor
@@ -1,5 +1,5 @@
 
-USING: kernel
+USING: combinators.short-circuit kernel
        combinators
        vectors
        sequences
@@ -39,10 +39,6 @@ IN: dns.forwarding
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: 1&& <-&& ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
 : rrs? ( obj -- ? ) { [ NX = not ] [ f = not ] } 1&& ;
 
 : query->answer/cache ( query -- rrs/NX/f )
diff --git a/extra/dns/misc/misc.factor b/extra/dns/misc/misc.factor
index 90731cec43..6e62513a80 100644
--- a/extra/dns/misc/misc.factor
+++ b/extra/dns/misc/misc.factor
@@ -1,12 +1,34 @@
 
-USING: kernel sequences splitting io.files io.encodings.utf8 random newfx ;
+USING: kernel combinators sequences splitting math 
+       io.files io.encodings.utf8 random newfx dns.util ;
 
 IN: dns.misc
 
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
 : resolv-conf-servers ( -- seq )
   "/etc/resolv.conf" utf8 file-lines
   [ " " split ] map
   [ 1st "nameserver" = ] filter
   [ 2nd ] map ;
 
-: resolv-conf-server ( -- ip ) resolv-conf-servers random ;
\ No newline at end of file
+: resolv-conf-server ( -- ip ) resolv-conf-servers random ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: cdr-name ( name -- name ) dup CHAR: . index 1+ tail ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: domain-has-name? ( domain name -- ? )
+    {
+      { [ 2dup =       ] [ 2drop t ] }
+      { [ 2dup longer? ] [ 2drop f ] }
+      { [ t            ] [ cdr-name domain-has-name? ] }
+    }
+  cond ;
+
+: name-in-domain? ( name domain -- ? ) swap domain-has-name? ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/dns/server/server.factor b/extra/dns/server/server.factor
new file mode 100644
index 0000000000..16677d8761
--- /dev/null
+++ b/extra/dns/server/server.factor
@@ -0,0 +1,208 @@
+
+USING: kernel combinators sequences sets math threads namespaces continuations
+       debugger io io.sockets unicode.case accessors destructors
+       combinators.cleave combinators.lib combinators.short-circuit 
+       newfx fry
+       dns dns.util dns.misc ;
+
+IN: dns.server
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYMBOL: records-var
+
+: records ( -- records ) records-var get ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: {name-type-class} ( obj -- array )
+  { [ name>> >lower ] [ type>> ] [ class>> ] } <arr> ;
+
+: rr=query? ( obj obj -- ? ) [ {name-type-class} ] bi@ = ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: matching-rrs  ( query -- rrs ) records [ rr=query? ] with filter ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! zones
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: zones    ( -- names ) records [ type>> NS  = ] filter [ name>> ] map prune ;
+: my-zones ( -- names ) records [ type>> SOA = ] filter [ name>> ] map ;
+
+: delegated-zones ( -- names ) zones my-zones diff ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! name->zone
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: name->zone ( name -- zone/f )
+  zones sort-largest-first [ name-in-domain? ] with find nip ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! name->authority
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: name->authority ( name -- rrs-ns ) name->zone NS IN query boa matching-rrs ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! extract-names
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: rr->rdata-names ( rr -- names/f )
+    {
+      { [ dup type>> NS    = ] [ rdata>>            {1} ] }
+      { [ dup type>> MX    = ] [ rdata>> exchange>> {1} ] }
+      { [ dup type>> CNAME = ] [ rdata>>            {1} ] }
+      { [ t ]                  [ drop f ] }
+    }
+  cond ;
+
+: extract-rdata-names ( message -- names )
+  [ answer-section>> ] [ authority-section>> ] bi append
+  [ rr->rdata-names ] map concat ;
+
+: extract-names ( message -- names )
+  [ message-query name>> ] [ extract-rdata-names ] bi prefix-on ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! fill-authority
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: fill-authority ( message -- message )
+  dup
+    extract-names [ name->authority ] map concat prune
+    over answer-section>> diff
+  >>authority-section ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! fill-additional
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: name->rrs-a ( name -- rrs-a ) A IN query boa matching-rrs ;
+
+: fill-additional ( message -- message )
+  dup
+    extract-rdata-names [ name->rrs-a ] map concat prune
+    over answer-section>> diff
+  >>additional-section ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! query->rrs
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+DEFER: query->rrs
+
+: matching-rrs? ( query -- rrs/f ) matching-rrs [ empty? ] [ drop f ] [ ] 1if ;
+
+: matching-cname? ( query -- rrs/f )
+  [ ] [ clone CNAME >>type matching-rrs ] bi ! query rrs
+  [ empty? not ]
+    [ 1st swap clone over rdata>> >>name query->rrs prefix-on ]
+    [ 2drop f ]
+  1if ;
+
+: query->rrs ( query -- rrs/f ) { [ matching-rrs? ] [ matching-cname? ] } 1|| ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! have-answers
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: have-answers ( message -- message/f )
+  dup message-query query->rrs
+  [ empty? ]
+    [ 2drop f ]
+    [ >>answer-section fill-authority fill-additional ]
+  1if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! have-delegates?
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: cdr-name ( name -- name ) dup CHAR: . index 1+ tail ;
+
+: is-soa? ( name -- ? ) SOA IN query boa matching-rrs empty? not ;
+
+: have-ns? ( name -- rrs/f )
+  NS IN query boa matching-rrs [ empty? ] [ drop f ] [ ] 1if ;
+
+: name->delegates ( name -- rrs-ns )
+    {
+      [ "" =    { } and ]
+      [ is-soa? { } and ]
+      [ have-ns? ]
+      [ cdr-name name->delegates ]
+    }
+  1|| ;
+
+: have-delegates ( message -- message/f )
+  dup message-query name>> name->delegates ! message rrs-ns
+  [ empty? ]
+    [ 2drop f ]
+    [
+      dup [ rdata>> A IN query boa matching-rrs ] map concat
+                                           ! message rrs-ns rrs-a
+      [ >>authority-section ]
+      [ >>additional-section ]
+      bi*
+    ]
+  1if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! outsize-zones
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: outside-zones ( message -- message/f )
+  dup message-query name>> name->zone f =
+    [ ]
+    [ drop f ]
+  if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! is-nx
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: is-nx ( message -- message/f )
+  [ message-query name>> records [ name>> = ] with filter empty? ]
+    [
+      NAME-ERROR >>rcode
+      dup
+        message-query name>> name->zone SOA IN query boa matching-rrs
+      >>authority-section
+    ]
+    [ drop f ]
+  1if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: none-of-type ( message -- message )
+  dup
+    message-query name>> name->zone SOA IN query boa matching-rrs
+  >>authority-section ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: find-answer ( message -- message )
+    {
+      [ have-answers   ]
+      [ have-delegates ]
+      [ outside-zones  ]
+      [ is-nx          ]
+      [ none-of-type   ]
+    }
+  1|| ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: (handle-request) ( packet -- )
+  [ [ find-answer ] with-message-bytes ] change-data respond ;
+
+: handle-request ( packet -- ) [ (handle-request) ] curry in-thread ;
+
+: receive-loop ( socket -- )
+  [ receive-packet handle-request ] [ receive-loop ] bi ;
+
+: loop ( addr-spec -- )
+  [ <datagram> '[ , [ receive-loop ] with-disposal ] try ] [ loop ] bi ;
+
diff --git a/extra/dns/util/util.factor b/extra/dns/util/util.factor
new file mode 100644
index 0000000000..35af74b92a
--- /dev/null
+++ b/extra/dns/util/util.factor
@@ -0,0 +1,30 @@
+
+USING: kernel sequences sorting math math.order macros fry ;
+
+IN: dns.util
+
+: tri-chain ( obj p q r -- x y z )
+  >r >r call dup r> call dup r> call ; inline
+
+MACRO: 1if ( test then else -- ) '[ dup @ , , if ] ;
+
+! : 1if ( test then else -- ) >r >r >r dup r> call r> r> if ; inline ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: sort-largest-first ( seq -- seq ) [ [ length ] compare ] sort reverse ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: longer? ( seq seq -- ? ) [ length ] bi@ > ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: io.sockets accessors ;
+
+TUPLE: packet data addr socket ;
+
+: receive-packet ( socket -- packet ) [ receive ] keep packet boa ;
+
+: respond ( packet -- ) [ data>> ] [ addr>> ] [ socket>> ] tri send ;
+
diff --git a/extra/editors/gvim/backend/backend.factor b/extra/editors/gvim/backend/backend.factor
deleted file mode 100644
index e2e2f0626e..0000000000
--- a/extra/editors/gvim/backend/backend.factor
+++ /dev/null
@@ -1,4 +0,0 @@
-USING: io.backend ;
-IN: editors.gvim.backend
-
-HOOK: gvim-path io-backend ( -- path )
diff --git a/extra/eval-server/eval-server.factor b/extra/eval-server/eval-server.factor
deleted file mode 100644
index 3bfae616a2..0000000000
--- a/extra/eval-server/eval-server.factor
+++ /dev/null
@@ -1,11 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: listener io.server strings parser byte-arrays ;
-IN: eval-server
-
-: eval-server ( -- )
-    9998 local-server "eval-server" [
-        >string eval>string >byte-array
-    ] with-datagrams ;
-
-MAIN: eval-server
diff --git a/extra/eval-server/summary.txt b/extra/eval-server/summary.txt
deleted file mode 100644
index b75930ac9f..0000000000
--- a/extra/eval-server/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Listens for UDP packets on localhost:9998, evaluates them and sends back result
diff --git a/extra/eval-server/tags.txt b/extra/eval-server/tags.txt
deleted file mode 100644
index f628c95985..0000000000
--- a/extra/eval-server/tags.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-demos
-network
-tools
-applications
diff --git a/extra/factory/deploy.factor b/extra/factory/deploy.factor
deleted file mode 100644
index 84dd43b7e1..0000000000
--- a/extra/factory/deploy.factor
+++ /dev/null
@@ -1,12 +0,0 @@
-USING: tools.deploy.config ;
-V{
-    { strip-globals? f }
-    { strip-word-props? f }
-    { strip-word-names? f }
-    { strip-dictionary? f }
-    { strip-debugger? f }
-    { deploy-math? t }
-    { deploy-compiled? t }
-    { deploy-io? f }
-    { deploy-ui? f }
-}
diff --git a/extra/faq/faq.factor b/extra/faq/faq.factor
index 3cb17cf08b..525cef68ed 100644
--- a/extra/faq/faq.factor
+++ b/extra/faq/faq.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: xml kernel sequences xml.utilities combinators.lib
 math xml.data arrays assocs xml.generator xml.writer namespaces
-math.parser io ;
+math.parser io accessors ;
 IN: faq
 
 : find-after ( seq quot -- elem after )
@@ -18,19 +18,19 @@ C: <q/a> q/a
 : li>q/a ( li -- q/a )
     [ "br" tag-named*? not ] filter
     [ "strong" tag-named*? ] find-after
-    >r tag-children r> <q/a> ;
+    >r children>> r> <q/a> ;
 
 : q/a>li ( q/a -- li )
-    [ q/a-question "strong" build-tag* f "br" build-tag* 2array ] keep
-    q/a-answer append "li" build-tag* ;
+    [ question>> "strong" build-tag* f "br" build-tag* 2array ] keep
+    answer>> append "li" build-tag* ;
 
 : xml>q/a ( xml -- q/a )
-    [ "question" tag-named tag-children ] keep
-    "answer" tag-named tag-children <q/a> ;
+    [ "question" tag-named children>> ] keep
+    "answer" tag-named children>> <q/a> ;
 
 : q/a>xml ( q/a -- xml )
-    [ q/a-question "question" build-tag* ] keep
-    q/a-answer "answer" build-tag*
+    [ question>> "question" build-tag* ] keep
+    answer>> "answer" build-tag*
     "\n" swap 3array "qa" build-tag* ;
 
 ! Lists of questions
@@ -39,27 +39,27 @@ C: <question-list> question-list
 
 : xml>question-list ( list -- question-list )
     [ "title" swap at ] keep
-    tag-children [ tag? ] filter [ xml>q/a ] map
+    children>> [ tag? ] filter [ xml>q/a ] map
     <question-list> ;
 
 : question-list>xml ( question-list -- list )
-    [ question-list-seq [ q/a>xml "\n" swap 2array ]
+    [ seq>> [ q/a>xml "\n" swap 2array ]
       map concat "list" build-tag* ] keep
-    question-list-title [ "title" pick set-at ] when* ;
+    title>> [ "title" pick set-at ] when* ;
 
 : html>question-list ( h3 ol -- question-list )
     >r [ children>string ] [ f ] if* r>
     children-tags [ li>q/a ] map <question-list> ;
 
 : question-list>h3 ( id question-list -- h3 )
-    question-list-title [
+    title>> [
         "h3" build-tag
         swap number>string "id" pick set-at
     ] [ drop f ] if* ;
 
 : question-list>html ( question-list start id -- h3/f ol )
     -rot >r [ question-list>h3 ] keep
-    question-list-seq [ q/a>li ] map "ol" build-tag* r>
+    seq>> [ q/a>li ] map "ol" build-tag* r>
     number>string "start" pick set-at
     "margin-left: 5em" "style" pick set-at ;
 
@@ -72,32 +72,32 @@ C: <faq> faq
     first2 >r f prefix r> [ html>question-list ] 2map <faq> ;
 
 : header, ( faq -- )
-    dup faq-header ,
-    faq-lists first 1 -1 question-list>html nip , ;
+    dup header>> ,
+    lists>> first 1 -1 question-list>html nip , ;
 
 : br, ( -- )
     "br" contained, nl, ;
 
 : toc-link, ( question-list number -- )
     number>string "#" prepend "href" swap 2array 1array
-    "a" swap [ question-list-title , ] tag*, br, ;
+    "a" swap [ title>> , ] tag*, br, ;
 
 : toc, ( faq -- )
     "div" { { "style" "background-color: #eee; margin-left: 30%; margin-right: 30%; width: auto; padding: 5px; margin-top: 1em; margin-bottom: 1em" } } [
         "strong" [ "The big questions" , ] tag, br,
-        faq-lists rest dup length [ toc-link, ] 2each
+        lists>> rest dup length [ toc-link, ] 2each
     ] tag*, ;
 
 : faq-sections, ( question-lists -- )
-    unclip question-list-seq length 1+ dupd
-    [ question-list-seq length + ] accumulate nip
+    unclip seq>> length 1+ dupd
+    [ seq>> length + ] accumulate nip
     0 -rot [ pick question-list>html [ , nl, ] bi@ 1+ ] 2each drop ;
 
 : faq>html ( faq -- div )
     "div" [
         dup header,
         dup toc,
-        faq-lists faq-sections,
+        lists>> faq-sections,
     ] make-xml ;
 
 : xml>faq ( xml -- faq )
@@ -106,8 +106,8 @@ C: <faq> faq
 
 : faq>xml ( faq -- xml )
     "faq" [
-        "header" [ dup faq-header , ] tag,
-        faq-lists [ question-list>xml , nl, ] each
+        "header" [ dup header>> , ] tag,
+        lists>> [ question-list>xml , nl, ] each
     ] make-xml ;
 
 : read-write-faq ( xml-stream -- )
diff --git a/extra/farkup/farkup-docs.factor b/extra/farkup/farkup-docs.factor
deleted file mode 100644
index b2b662db82..0000000000
--- a/extra/farkup/farkup-docs.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-USING: help.markup help.syntax ;
-IN: farkup
-
-HELP: convert-farkup
-{ $values { "string" "a string" } { "string'" "a string" } }
-{ $description "Parse a string as farkup (Factor mARKUP) and output the result aas an string of HTML." } ;
diff --git a/extra/farkup/farkup.factor b/extra/farkup/farkup.factor
deleted file mode 100755
index 1b51bb5752..0000000000
--- a/extra/farkup/farkup.factor
+++ /dev/null
@@ -1,189 +0,0 @@
-! Copyright (C) 2008 Doug Coleman.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays io io.styles kernel memoize namespaces peg
-sequences strings html.elements xml.entities xmode.code2html
-splitting io.streams.string peg.parsers
-sequences.deep unicode.categories ;
-IN: farkup
-
-SYMBOL: relative-link-prefix
-SYMBOL: link-no-follow?
-
-<PRIVATE
-
-: delimiters ( -- string )
-    "*_^~%[-=|\\\r\n" ; inline
-
-MEMO: text ( -- parser )
-    [ delimiters member? not ] satisfy repeat1
-    [ >string escape-string ] action ;
-
-MEMO: delimiter ( -- parser )
-    [ dup delimiters member? swap "\r\n=" member? not and ] satisfy
-    [ 1string ] action ;
-
-: surround-with-foo ( string tag -- seq )
-    dup <foo> swap </foo> swapd 3array ;
-
-: delimited ( str html -- parser )
-    [
-        over token hide ,
-        text [ surround-with-foo ] swapd curry action ,
-        token hide ,
-    ] seq* ;
-
-MEMO: escaped-char ( -- parser )
-    [ "\\" token hide , any-char , ] seq* [ >string ] action ;
-
-MEMO: strong ( -- parser ) "*" "strong" delimited ;
-MEMO: emphasis ( -- parser ) "_" "em" delimited ;
-MEMO: superscript ( -- parser ) "^" "sup" delimited ;
-MEMO: subscript ( -- parser ) "~" "sub" delimited ;
-MEMO: inline-code ( -- parser ) "%" "code" delimited ;
-MEMO: nl ( -- parser )
-    "\r\n" token [ drop "\n" ] action
-    "\r" token [ drop "\n" ] action
-    "\n" token 3choice ;
-MEMO: 2nl ( -- parser ) nl hide nl hide 2seq ;
-MEMO: h1 ( -- parser ) "=" "h1" delimited ;
-MEMO: h2 ( -- parser ) "==" "h2" delimited ;
-MEMO: h3 ( -- parser ) "===" "h3" delimited ;
-MEMO: h4 ( -- parser ) "====" "h4" delimited ;
-
-MEMO: eq ( -- parser )
-    [
-        h1 ensure-not ,
-        h2 ensure-not ,
-        h3 ensure-not ,
-        h4 ensure-not ,
-        "=" token ,
-    ] seq* ;
-
-: render-code ( string mode -- string' )
-    >r string-lines r>
-    [
-        <pre>
-            htmlize-lines
-        </pre>
-    ] with-string-writer ;
-
-: check-url ( href -- href' )
-    CHAR: : over member? [
-        dup { "http://" "https://" "ftp://" } [ head? ] with contains?
-        [ drop "/" ] unless
-    ] [
-        relative-link-prefix get prepend
-    ] if ;
-
-: escape-link ( href text -- href-esc text-esc )
-    >r check-url escape-quoted-string r> escape-string ;
-
-: make-link ( href text -- seq )
-    escape-link
-    [
-        "<a" ,
-        " href=\"" , >r , r>
-        link-no-follow? get [ " nofollow=\"true\"" , ] when
-        "\">" , , "</a>" ,
-    ] { } make ;
-
-: make-image-link ( href alt -- seq )
-    escape-link
-    [
-        "<img src=\"" , swap , "\"" ,
-        dup empty? [ drop ] [ " alt=\"" , , "\"" , ] if
-        "/>" , ]
-    { } make ;
-
-MEMO: image-link ( -- parser )
-    [
-        "[[image:" token hide ,
-        [ "|]" member? not ] satisfy repeat1 [ >string ] action ,
-        "|" token hide
-            [ CHAR: ] = not ] satisfy repeat0 2seq
-            [ first >string ] action optional ,
-        "]]" token hide ,
-    ] seq* [ first2 make-image-link ] action ;
-
-MEMO: simple-link ( -- parser )
-    [
-        "[[" token hide ,
-        [ "|]" member? not ] satisfy repeat1 ,
-        "]]" token hide ,
-    ] seq* [ first dup make-link ] action ;
-
-MEMO: labelled-link ( -- parser )
-    [
-        "[[" token hide ,
-        [ CHAR: | = not ] satisfy repeat1 ,
-        "|" token hide ,
-        [ CHAR: ] = not ] satisfy repeat1 ,
-        "]]" token hide ,
-    ] seq* [ first2 make-link ] action ;
-
-MEMO: link ( -- parser )
-    [ image-link , simple-link , labelled-link , ] choice* ;
-
-DEFER: line
-MEMO: list-item ( -- parser )
-    [
-        "-" token hide , ! text ,
-        [ "\r\n" member? not ] satisfy repeat1 [ >string escape-string ] action ,
-    ] seq* [ "li" surround-with-foo ] action ;
-
-MEMO: list ( -- parser )
-    list-item nl hide list-of
-    [ "ul" surround-with-foo ] action ;
-
-MEMO: table-column ( -- parser )
-    text [ "td" surround-with-foo ] action ;
-
-MEMO: table-row ( -- parser )
-    "|" token hide
-    table-column "|" token hide list-of
-    "|" token hide nl hide optional 4seq
-    [ "tr" surround-with-foo ] action ;
-
-MEMO: table ( -- parser )
-    table-row repeat1
-    [ "table" surround-with-foo ] action ;
-
-MEMO: code ( -- parser )
-    [
-        "[" token hide ,
-        [ CHAR: { = not ] satisfy repeat1 optional [ >string ] action ,
-        "{" token hide ,
-        "}]" token ensure-not any-char 2seq repeat0 [ concat >string ] action ,
-        "}]" token hide ,
-    ] seq* [ first2 swap render-code ] action ;
-
-MEMO: line ( -- parser )
-    [
-        nl table 2seq ,
-        nl list 2seq ,
-        text , strong , emphasis , link ,
-        superscript , subscript , inline-code ,
-        escaped-char , delimiter , eq ,
-    ] choice* repeat1 ;
-
-MEMO: paragraph ( -- parser )
-    line
-    nl over 2seq repeat0
-    nl nl ensure-not 2seq optional 3seq
-    [
-        dup [ dup string? not swap [ blank? ] all? or ] deep-all?
-        [ "<p>" swap "</p>" 3array ] unless
-    ] action ;
-
-PRIVATE>
-
-PEG: parse-farkup ( -- parser )
-    [
-        list , table , h1 , h2 , h3 , h4 , code , paragraph , 2nl , nl ,
-    ] choice* repeat0 nl optional 2seq ;
-
-: write-farkup ( parse-result  -- )
-    [ dup string? [ write ] [ drop ] if ] deep-each ;
-
-: convert-farkup ( string -- string' )
-    parse-farkup [ write-farkup ] with-string-writer ;
diff --git a/extra/fjsc/fjsc-tests.factor b/extra/fjsc/fjsc-tests.factor
index ce968128be..766e2ec60c 100755
--- a/extra/fjsc/fjsc-tests.factor
+++ b/extra/fjsc/fjsc-tests.factor
@@ -4,31 +4,31 @@ USING: kernel tools.test peg fjsc ;
 IN: fjsc.tests
 
 { T{ ast-expression f V{ T{ ast-number f 55 } T{ ast-identifier f "2abc1" } T{ ast-number f 100 } } } } [
-  "55 2abc1 100" 'expression' parse parse-result-ast
+  "55 2abc1 100" 'expression' parse
 ] unit-test
 
 { T{ ast-quotation f V{ T{ ast-number f 55 } T{ ast-identifier f "2abc1" } T{ ast-number f 100 } } } } [
-  "[ 55 2abc1 100 ]" 'quotation' parse parse-result-ast
+  "[ 55 2abc1 100 ]" 'quotation' parse
 ] unit-test
 
 { T{ ast-array f V{ T{ ast-number f 55 } T{ ast-identifier f "2abc1" } T{ ast-number f 100 } } } } [
-  "{ 55 2abc1 100 }" 'array' parse parse-result-ast
+  "{ 55 2abc1 100 }" 'array' parse
 ] unit-test
 
 { T{ ast-stack-effect f V{ } V{ "d" "e" "f" } } } [
-  "( -- d e f )" 'stack-effect' parse parse-result-ast
+  "( -- d e f )" 'stack-effect' parse
 ] unit-test
 
 { T{ ast-stack-effect f V{ "a" "b" "c" } V{ "d" "e" "f" } } } [
-  "( a b c -- d e f )" 'stack-effect' parse parse-result-ast
+  "( a b c -- d e f )" 'stack-effect' parse
 ] unit-test
 
 { T{ ast-stack-effect f V{ "a" "b" "c" } V{ } } } [
-  "( a b c -- )" 'stack-effect' parse parse-result-ast
+  "( a b c -- )" 'stack-effect' parse
 ] unit-test
 
 { T{ ast-stack-effect f V{ } V{ } } } [
-  "( -- )" 'stack-effect' parse parse-result-ast
+  "( -- )" 'stack-effect' parse
 ] unit-test
 
 { f } [
@@ -37,18 +37,18 @@ IN: fjsc.tests
 
 
 { T{ ast-expression f V{ T{ ast-string f "abcd" } } } } [
-  "\"abcd\"" 'statement' parse parse-result-ast
+  "\"abcd\"" 'statement' parse
 ] unit-test
 
 { T{ ast-expression f V{ T{ ast-use f "foo" } } } } [
-  "USE: foo" 'statement' parse parse-result-ast
+  "USE: foo" 'statement' parse
 ] unit-test
 
 { T{ ast-expression f V{ T{ ast-in f "foo" } } } } [
-  "IN: foo" 'statement' parse parse-result-ast
+  "IN: foo" 'statement' parse
 ] unit-test
 
 { T{ ast-expression f V{ T{ ast-using f V{ "foo" "bar" }  } } } } [
-  "USING: foo bar ;" 'statement' parse parse-result-ast
+  "USING: foo bar ;" 'statement' parse
 ] unit-test
 
diff --git a/extra/fjsc/fjsc.factor b/extra/fjsc/fjsc.factor
index 3811949c1d..ac3b447f1c 100755
--- a/extra/fjsc/fjsc.factor
+++ b/extra/fjsc/fjsc.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2006 Chris Double. All Rights Reserved.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel peg strings promises sequences math math.parser
-       namespaces words quotations arrays hashtables io
-       io.streams.string assocs memoize ascii peg.parsers ;
+USING: accessors kernel peg strings sequences math
+math.parser namespaces words quotations arrays hashtables io
+io.streams.string assocs ascii peg.parsers accessors ;
 IN: fjsc
 
 TUPLE: ast-number value ;
@@ -20,28 +20,13 @@ TUPLE: ast-using names ;
 TUPLE: ast-in name ;
 TUPLE: ast-hashtable elements ;
 
-C: <ast-number> ast-number
-C: <ast-identifier> ast-identifier
-C: <ast-string> ast-string
-C: <ast-quotation> ast-quotation
-C: <ast-array> ast-array
-C: <ast-define> ast-define
-C: <ast-expression> ast-expression
-C: <ast-word> ast-word
-C: <ast-comment> ast-comment
-C: <ast-stack-effect> ast-stack-effect
-C: <ast-use> ast-use
-C: <ast-using> ast-using
-C: <ast-in> ast-in
-C: <ast-hashtable> ast-hashtable
-
 : identifier-middle? ( ch -- bool )
   [ blank? not ] keep
   [ "}];\"" member? not ] keep
   digit? not
   and and ;
 
-MEMO: 'identifier-ends' ( -- parser )
+: 'identifier-ends' ( -- parser )
   [
     [ blank? not ] keep
     [ CHAR: " = not ] keep
@@ -52,22 +37,22 @@ MEMO: 'identifier-ends' ( -- parser )
     and and and and and
   ] satisfy repeat0 ;
 
-MEMO: 'identifier-middle' ( -- parser )
+: 'identifier-middle' ( -- parser )
   [ identifier-middle? ] satisfy repeat1 ;
 
-MEMO: 'identifier' ( -- parser )
+: 'identifier' ( -- parser )
   [
     'identifier-ends' ,
     'identifier-middle' ,
     'identifier-ends' ,
-  ] { } make seq [
-    concat >string f <ast-identifier>
+  ] seq* [
+    concat >string f ast-identifier boa
   ] action ;
 
 
 DEFER: 'expression'
 
-MEMO: 'effect-name' ( -- parser )
+: 'effect-name' ( -- parser )
   [
     [ blank? not ] keep
     [ CHAR: ) = not ] keep
@@ -75,98 +60,98 @@ MEMO: 'effect-name' ( -- parser )
     and and
   ] satisfy repeat1 [ >string ] action ;
 
-MEMO: 'stack-effect' ( -- parser )
+: 'stack-effect' ( -- parser )
   [
     "(" token hide ,
     'effect-name' sp repeat0 ,
     "--" token sp hide ,
     'effect-name' sp repeat0 ,
     ")" token sp hide ,
-  ] { } make seq [
-    first2 <ast-stack-effect>
+  ] seq* [
+    first2 ast-stack-effect boa
   ] action ;
 
-MEMO: 'define' ( -- parser )
+: 'define' ( -- parser )
   [
     ":" token sp hide ,
-    'identifier' sp [ ast-identifier-value ] action ,
+    'identifier' sp [ value>> ] action ,
     'stack-effect' sp optional ,
     'expression' ,
     ";" token sp hide ,
-  ] { } make seq [ first3 <ast-define> ] action ;
+  ] seq* [ first3 ast-define boa ] action ;
 
-MEMO: 'quotation' ( -- parser )
+: 'quotation' ( -- parser )
   [
     "[" token sp hide ,
-    'expression' [ ast-expression-values ] action ,
+    'expression' [ values>> ] action ,
     "]" token sp hide ,
-  ] { } make seq [ first <ast-quotation> ] action ;
+  ] seq* [ first ast-quotation boa ] action ;
 
-MEMO: 'array' ( -- parser )
+: 'array' ( -- parser )
   [
     "{" token sp hide ,
-    'expression' [ ast-expression-values ] action ,
+    'expression' [ values>> ] action ,
     "}" token sp hide ,
-  ] { } make seq [ first <ast-array> ] action ;
+  ] seq* [ first ast-array boa ] action ;
 
-MEMO: 'word' ( -- parser )
+: 'word' ( -- parser )
   [
     "\\" token sp hide ,
     'identifier' sp ,
-  ] { } make seq [ first ast-identifier-value f <ast-word> ] action ;
+  ] seq* [ first value>> f ast-word boa ] action ;
 
-MEMO: 'atom' ( -- parser )
+: 'atom' ( -- parser )
   [
     'identifier' ,
-    'integer' [ <ast-number> ] action ,
-    'string' [ <ast-string> ] action ,
-  ] { } make choice ;
+    'integer' [ ast-number boa ] action ,
+    'string' [ ast-string boa ] action ,
+  ] choice* ;
 
-MEMO: 'comment' ( -- parser )
+: 'comment' ( -- parser )
   [
     [
       "#!" token sp ,
       "!" token sp ,
-    ] { } make choice hide ,
+    ] choice* hide ,
     [
       dup CHAR: \n = swap CHAR: \r = or not
     ] satisfy repeat0 ,
-  ] { } make seq [ drop <ast-comment> ] action ;
+  ] seq* [ drop ast-comment boa ] action ;
 
-MEMO: 'USE:' ( -- parser )
+: 'USE:' ( -- parser )
   [
     "USE:" token sp hide ,
     'identifier' sp ,
-  ] { } make seq [ first ast-identifier-value <ast-use> ] action ;
+  ] seq* [ first value>> ast-use boa ] action ;
 
-MEMO: 'IN:' ( -- parser )
+: 'IN:' ( -- parser )
   [
     "IN:" token sp hide ,
     'identifier' sp ,
-  ] { } make seq [ first ast-identifier-value <ast-in> ] action ;
+  ] seq* [ first value>> ast-in boa ] action ;
 
-MEMO: 'USING:' ( -- parser )
+: 'USING:' ( -- parser )
   [
     "USING:" token sp hide ,
-    'identifier' sp [ ast-identifier-value ] action repeat1 ,
+    'identifier' sp [ value>> ] action repeat1 ,
     ";" token sp hide ,
-  ] { } make seq [ first <ast-using> ] action ;
+  ] seq* [ first ast-using boa ] action ;
 
-MEMO: 'hashtable' ( -- parser )
+: 'hashtable' ( -- parser )
   [
     "H{" token sp hide ,
-    'expression' [ ast-expression-values ] action ,
+    'expression' [ values>> ] action ,
     "}" token sp hide ,
-  ] { } make seq [ first <ast-hashtable> ] action ;
+  ] seq* [ first ast-hashtable boa ] action ;
 
-MEMO: 'parsing-word' ( -- parser )
+: 'parsing-word' ( -- parser )
   [
     'USE:' ,
     'USING:' ,
     'IN:' ,
-  ] { } make choice ;
+  ] choice* ;
 
-MEMO: 'expression' ( -- parser )
+: 'expression' ( -- parser )
   [
     [
       'comment' ,
@@ -177,17 +162,17 @@ MEMO: 'expression' ( -- parser )
       'hashtable' sp ,
       'word' sp ,
       'atom' sp ,
-    ] { } make choice repeat0 [ <ast-expression> ] action
+    ] choice* repeat0 [ ast-expression boa ] action
   ] delay ;
 
-MEMO: 'statement' ( -- parser )
+: 'statement' ( -- parser )
   'expression' ;
 
 GENERIC: (compile) ( ast -- )
 GENERIC: (literal) ( ast -- )
 
 M: ast-number (literal)
-  ast-number-value number>string , ;
+  value>> number>string , ;
 
 M: ast-number (compile)
   "factor.push_data(" ,
@@ -196,7 +181,7 @@ M: ast-number (compile)
 
 M: ast-string (literal)
   "\"" ,
-  ast-string-value ,
+  value>> ,
   "\"" , ;
 
 M: ast-string (compile)
@@ -205,14 +190,14 @@ M: ast-string (compile)
   "," , ;
 
 M: ast-identifier (literal)
-  dup ast-identifier-vocab [
+  dup vocab>> [
    "factor.get_word(\"" ,
-   dup ast-identifier-vocab ,
+   dup vocab>> ,
    "\",\"" ,
-   ast-identifier-value ,
+   value>> ,
    "\")" ,
   ] [
-   "factor.find_word(\"" , ast-identifier-value , "\")" ,
+   "factor.find_word(\"" , value>> , "\")" ,
   ] if ;
 
 M: ast-identifier (compile)
@@ -220,9 +205,9 @@ M: ast-identifier (compile)
 
 M: ast-define (compile)
   "factor.define_word(\"" ,
-  dup ast-define-name ,
+  dup name>> ,
   "\",\"source\"," ,
-  ast-define-expression (compile)
+  expression>> (compile)
   "," , ;
 
 : do-expressions ( seq -- )
@@ -242,17 +227,17 @@ M: ast-define (compile)
 
 M: ast-quotation (literal)
   "factor.make_quotation(\"source\"," ,
-  ast-quotation-values do-expressions
+  values>> do-expressions
   ")" , ;
 
 M: ast-quotation (compile)
   "factor.push_data(factor.make_quotation(\"source\"," ,
-  ast-quotation-values do-expressions
+  values>> do-expressions
   ")," , ;
 
 M: ast-array (literal)
   "[" ,
-  ast-array-elements [ "," , ] [ (literal) ] interleave
+  elements>> [ "," , ] [ (literal) ] interleave
   "]" , ;
 
 M: ast-array (compile)
@@ -260,7 +245,7 @@ M: ast-array (compile)
 
 M: ast-hashtable (literal)
   "new Hashtable().fromAlist([" ,
-  ast-hashtable-elements [ "," , ] [ (literal) ] interleave
+  elements>> [ "," , ] [ (literal) ] interleave
   "])" , ;
 
 M: ast-hashtable (compile)
@@ -268,22 +253,22 @@ M: ast-hashtable (compile)
 
 
 M: ast-expression (literal)
-  ast-expression-values [
+  values>> [
     (literal)
   ] each ;
 
 M: ast-expression (compile)
-  ast-expression-values do-expressions ;
+  values>> do-expressions ;
 
 M: ast-word (literal)
-  dup ast-word-vocab [
+  dup vocab>> [
    "factor.get_word(\"" ,
-   dup ast-word-vocab ,
+   dup vocab>> ,
    "\",\"" ,
-   ast-word-value ,
+   value>> ,
    "\")" ,
   ] [
-   "factor.find_word(\"" , ast-word-value , "\")" ,
+   "factor.find_word(\"" , value>> , "\")" ,
   ] if ;
 
 M: ast-word (compile)
@@ -299,17 +284,17 @@ M: ast-stack-effect (compile)
 
 M: ast-use (compile)
   "factor.use(\"" ,
-  ast-use-name ,
+  name>> ,
   "\"," , ;
 
 M: ast-in (compile)
   "factor.set_in(\"" ,
-  ast-in-name ,
+  name>> ,
   "\"," , ;
 
 M: ast-using (compile)
   "factor.using([" ,
-  ast-using-names [
+  names>> [
     "," ,
   ] [
     "\"" , , "\"" ,
@@ -319,44 +304,44 @@ M: ast-using (compile)
 GENERIC: (parse-factor-quotation) ( object -- ast )
 
 M: number (parse-factor-quotation) ( object -- ast )
-  <ast-number> ;
+  ast-number boa ;
 
 M: symbol (parse-factor-quotation) ( object -- ast )
-  dup >string swap word-vocabulary <ast-identifier> ;
+  dup >string swap vocabulary>> ast-identifier boa ;
 
 M: word (parse-factor-quotation) ( object -- ast )
-  dup word-name swap word-vocabulary <ast-identifier> ;
+  dup name>> swap vocabulary>> ast-identifier boa ;
 
 M: string (parse-factor-quotation) ( object -- ast )
-  <ast-string> ;
+  ast-string boa ;
 
 M: quotation (parse-factor-quotation) ( object -- ast )
   [
     [ (parse-factor-quotation) , ] each
-  ] { } make <ast-quotation> ;
+  ] { } make ast-quotation boa ;
 
 M: array (parse-factor-quotation) ( object -- ast )
   [
     [ (parse-factor-quotation) , ] each
-  ] { } make <ast-array> ;
+  ] { } make ast-array boa ;
 
 M: hashtable (parse-factor-quotation) ( object -- ast )
   >alist [
     [ (parse-factor-quotation) , ] each
-  ] { } make <ast-hashtable> ;
+  ] { } make ast-hashtable boa ;
 
 M: wrapper (parse-factor-quotation) ( object -- ast )
-  wrapped dup word-name swap word-vocabulary <ast-word> ;
+  wrapped>> dup name>> swap vocabulary>> ast-word boa ;
 
 GENERIC: fjsc-parse ( object -- ast )
 
 M: string fjsc-parse ( object -- ast )
-  'expression' parse parse-result-ast ;
+  'expression' parse ast>> ;
 
 M: quotation fjsc-parse ( object -- ast )
   [
     [ (parse-factor-quotation) , ] each
-  ] { } make <ast-expression> ;
+  ] { } make ast-expression boa ;
 
 : fjsc-compile ( ast -- string )
   [
@@ -368,11 +353,11 @@ M: quotation fjsc-parse ( object -- ast )
   ] with-string-writer ;
 
 : fjsc-compile* ( string -- string )
-  'statement' parse parse-result-ast fjsc-compile ;
+  'statement' parse ast>> fjsc-compile ;
 
 : fc* ( string -- string )
   [
-  'statement' parse parse-result-ast ast-expression-values do-expressions
+  'statement' parse ast>> values>> do-expressions
   ] { } make [ write ] each ;
 
 
diff --git a/extra/ftp/server/server.factor b/extra/ftp/server/server.factor
index cce69dde0f..21a32d1776 100644
--- a/extra/ftp/server/server.factor
+++ b/extra/ftp/server/server.factor
@@ -1,10 +1,10 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors combinators io io.encodings.8-bit
+USING: combinators.short-circuit accessors combinators io io.encodings.8-bit
 io.encodings io.encodings.binary io.encodings.utf8 io.files
-io.server io.sockets kernel math.parser namespaces sequences
+io.sockets kernel math.parser namespaces sequences
 ftp io.unix.launcher.parser unicode.case splitting assocs
-classes io.server destructors calendar io.timeouts
+classes io.servers.connection destructors calendar io.timeouts
 io.streams.duplex threads continuations math
 concurrency.promises byte-arrays ;
 IN: ftp.server
@@ -144,7 +144,7 @@ M: ftp-list service-command ( stream obj -- )
     150 "Opening BINARY mode data connection for "
     rot   
     [ file-name ] [
-        " " swap  file-info file-info-size number>string
+        " " swap  file-info size>> number>string
         "(" " bytes)." swapd 3append append
     ] bi 3append server-response ;
 
@@ -305,7 +305,10 @@ ERROR: not-a-directory ;
         [ drop unrecognized-command t ]
     } case [ handle-client-loop ] when ;
 
-: handle-client ( -- )
+TUPLE: ftp-server < threaded-server ;
+
+M: ftp-server handle-client* ( server -- )
+    drop
     [
         "" [
             host-name <ftp-client> client set
@@ -313,9 +316,14 @@ ERROR: not-a-directory ;
         ] with-directory
     ] with-destructors ;
 
+: <ftp-server> ( port -- server )
+    ftp-server new-threaded-server
+        swap >>insecure
+        "ftp.server" >>name
+        latin1 >>encoding ;
+
 : ftpd ( port -- )
-    internet-server "ftp.server"
-    latin1 [ handle-client ] with-server ;
+    <ftp-server> start-server ;
 
 : ftpd-main ( -- ) 2100 ftpd ;
 
diff --git a/extra/furnace/actions/actions.factor b/extra/furnace/actions/actions.factor
deleted file mode 100755
index 5e237b02a8..0000000000
--- a/extra/furnace/actions/actions.factor
+++ /dev/null
@@ -1,101 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors sequences kernel assocs combinators
-validators http hashtables namespaces fry continuations locals
-io arrays math boxes
-xml.entities
-http.server
-http.server.responses
-furnace
-html.elements
-html.components
-html.templates.chloe
-html.templates.chloe.syntax ;
-IN: furnace.actions
-
-SYMBOL: params
-
-SYMBOL: rest-param
-
-: render-validation-messages ( -- )
-    validation-messages get
-    dup empty? [ drop ] [
-        <ul "errors" =class ul>
-            [ <li> message>> escape-string write </li> ] each
-        </ul>
-    ] if ;
-
-CHLOE: validation-messages drop render-validation-messages ;
-
-TUPLE: action rest-param init display validate submit ;
-
-: new-action ( class -- action )
-    new
-        [ ] >>init
-        [ <400> ] >>display
-        [ ] >>validate
-        [ <400> ] >>submit ;
-
-: <action> ( -- action )
-    action new-action ;
-
-: handle-get ( action -- response )
-    blank-values
-    [ init>> call ]
-    [ display>> call ]
-    bi ;
-
-: validation-failed ( -- * )
-    request get method>> "POST" =
-    [ action get display>> call ] [ <400> ] if exit-with ;
-
-: handle-post ( action -- response )
-    init-validation
-    blank-values
-    [ validate>> call ]
-    [ submit>> call ] bi ;
-
-: handle-rest-param ( arg -- )
-    dup length 1 > action get rest-param>> not or
-    [ <404> exit-with ] [
-        action get rest-param>> associate rest-param set
-    ] if ;
-
-M: action call-responder* ( path action -- response )
-    dup action set
-    '[
-        , dup empty? [ drop ] [ handle-rest-param ] if
-
-        init-validation
-        ,
-        request get
-        [ request-params rest-param get assoc-union params set ]
-        [ method>> ] bi
-        {
-            { "GET" [ handle-get ] }
-            { "HEAD" [ handle-get ] }
-            { "POST" [ handle-post ] }
-        } case
-    ] with-exit-continuation ;
-
-: param ( name -- value )
-    params get at ;
-
-: check-validation ( -- )
-    validation-failed? [ validation-failed ] when ;
-
-: validate-params ( validators -- )
-    params get swap validate-values from-object
-    check-validation ;
-
-: validate-integer-id ( -- )
-    { { "id" [ v-number ] } } validate-params ;
-
-TUPLE: page-action < action template ;
-
-: <chloe-content> ( path -- response )
-    resolve-template-path <chloe> "text/html" <content> ;
-
-: <page-action> ( -- page )
-    page-action new-action
-        dup '[ , template>> <chloe-content> ] >>display ;
diff --git a/extra/furnace/auth/auth.factor b/extra/furnace/auth/auth.factor
deleted file mode 100755
index f78cea3835..0000000000
--- a/extra/furnace/auth/auth.factor
+++ /dev/null
@@ -1,43 +0,0 @@
-! Copyright (c) 2008 Slava Pestov
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors assocs namespaces kernel sequences sets
-http.server
-http.server.filters
-http.server.dispatchers
-furnace.sessions
-furnace.auth.providers ;
-IN: furnace.auth
-
-SYMBOL: logged-in-user
-
-GENERIC: init-user-profile ( responder -- )
-
-M: object init-user-profile drop ;
-
-M: dispatcher init-user-profile
-    default>> init-user-profile ;
-
-M: filter-responder init-user-profile
-    responder>> init-user-profile ;
-
-: profile ( -- assoc ) logged-in-user get profile>> ;
-
-: user-changed ( -- )
-    logged-in-user get t >>changed? drop ;
-
-: uget ( key -- value )
-    profile at ;
-
-: uset ( value key -- )
-    profile set-at
-    user-changed ;
-
-: uchange ( quot key -- )
-    profile swap change-at
-    user-changed ; inline
-
-SYMBOL: capabilities
-
-V{ } clone capabilities set-global
-
-: define-capability ( word -- ) capabilities get adjoin ;
diff --git a/extra/furnace/auth/basic/basic.factor b/extra/furnace/auth/basic/basic.factor
deleted file mode 100755
index c8d542c219..0000000000
--- a/extra/furnace/auth/basic/basic.factor
+++ /dev/null
@@ -1,41 +0,0 @@
-! Copyright (c) 2007 Chris Double.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors quotations assocs kernel splitting
-base64 html.elements io combinators sequences
-http http.server.filters http.server.responses http.server
-furnace.auth.providers furnace.auth.login ;
-IN: furnace.auth.basic
-
-TUPLE: basic-auth < filter-responder realm provider ;
-
-C: <basic-auth> basic-auth
-
-: authorization-ok? ( provider header -- ? )
-    #! Given the realm and the 'Authorization' header,
-    #! authenticate the user.
-    dup [
-        " " split1 swap "Basic" = [
-            base64> ":" split1 spin check-login
-        ] [
-            2drop f
-        ] if
-    ] [
-        2drop f
-    ] if ;
-
-: <401> ( realm -- response )
-    401 "Unauthorized" <trivial-response>
-    "Basic realm=\"" rot "\"" 3append
-    "WWW-Authenticate" set-header
-    [
-        <html> <body>
-            "Username or Password is invalid" write
-        </body> </html>
-    ] >>body ;
-
-: logged-in? ( request responder -- ? )
-    provider>> swap "authorization" header authorization-ok? ;
-
-M: basic-auth call-responder* ( request path responder -- response )
-    pick over logged-in?
-    [ call-next-method ] [ 2nip realm>> <401> ] if ;
diff --git a/extra/furnace/auth/login/login-tests.factor b/extra/furnace/auth/login/login-tests.factor
deleted file mode 100755
index 5095ebdb85..0000000000
--- a/extra/furnace/auth/login/login-tests.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-IN: furnace.auth.login.tests
-USING: tools.test furnace.auth.login ;
-
-\ <login> must-infer
-\ allow-registration must-infer
-\ allow-password-recovery must-infer
diff --git a/extra/furnace/auth/login/login.factor b/extra/furnace/auth/login/login.factor
deleted file mode 100755
index 58ab47e3e1..0000000000
--- a/extra/furnace/auth/login/login.factor
+++ /dev/null
@@ -1,364 +0,0 @@
-! Copyright (c) 2008 Slava Pestov
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors quotations assocs kernel splitting
-combinators sequences namespaces hashtables sets
-fry arrays threads qualified random validators
-io
-io.sockets
-io.encodings.utf8
-io.encodings.string
-io.binary
-continuations
-destructors
-checksums
-checksums.sha2
-validators
-html.components
-html.elements
-urls
-http
-http.server
-http.server.dispatchers
-http.server.filters
-http.server.responses
-furnace
-furnace.auth
-furnace.auth.providers
-furnace.auth.providers.db
-furnace.actions
-furnace.flows
-furnace.sessions
-furnace.boilerplate ;
-QUALIFIED: smtp
-IN: furnace.auth.login
-
-TUPLE: login < dispatcher users checksum ;
-
-: users ( -- provider )
-    login get users>> ;
-
-: encode-password ( string salt -- bytes )
-    [ utf8 encode ] [ 4 >be ] bi* append
-    login get checksum>> checksum-bytes ;
-
-: >>encoded-password ( user string -- user )
-    32 random-bits [ encode-password ] keep
-    [ >>password ] [ >>salt ] bi* ; inline
-
-: valid-login? ( password user -- ? )
-    [ salt>> encode-password ] [ password>> ] bi = ;
-
-: check-login ( password username -- user/f )
-    users get-user dup [ [ valid-login? ] keep and ] [ 2drop f ] if ;
-
-! Destructor
-TUPLE: user-saver user ;
-
-C: <user-saver> user-saver
-
-M: user-saver dispose
-    user>> dup changed?>> [ users update-user ] [ drop ] if ;
-
-: save-user-after ( user -- )
-    <user-saver> &dispose drop ;
-
-! ! ! Login
-: successful-login ( user -- response )
-    username>> set-uid URL" $login" end-flow ;
-
-: login-failed ( -- * )
-    "invalid username or password" validation-error
-    validation-failed ;
-
-: <login-action> ( -- action )
-    <page-action>
-        { login "login" } >>template
-
-        [
-            {
-                { "username" [ v-required ] }
-                { "password" [ v-required ] }
-            } validate-params
-
-            "password" value
-            "username" value check-login
-            [ successful-login ] [ login-failed ] if*
-        ] >>submit ;
-
-! ! ! New user registration
-
-: user-exists ( -- * )
-    "username taken" validation-error
-    validation-failed ;
-
-: password-mismatch ( -- * )
-    "passwords do not match" validation-error
-    validation-failed ;
-
-: same-password-twice ( -- )
-    "new-password" value "verify-password" value =
-    [ password-mismatch ] unless ;
-
-: <register-action> ( -- action )
-    <page-action>
-        { login "register" } >>template
-
-        [
-            {
-                { "username" [ v-username ] }
-                { "realname" [ [ v-one-line ] v-optional ] }
-                { "new-password" [ v-password ] }
-                { "verify-password" [ v-password ] }
-                { "email" [ [ v-email ] v-optional ] }
-                { "captcha" [ v-captcha ] }
-            } validate-params
-
-            same-password-twice
-        ] >>validate
-
-        [
-            "username" value <user>
-                "realname" value >>realname
-                "new-password" value >>encoded-password
-                "email" value >>email
-                H{ } clone >>profile
-
-            users new-user [ user-exists ] unless*
-
-            login get init-user-profile
-
-            successful-login
-        ] >>submit ;
-
-! ! ! Editing user profile
-
-: <edit-profile-action> ( -- action )
-    <page-action>
-        [
-            logged-in-user get
-            [ username>> "username" set-value ]
-            [ realname>> "realname" set-value ]
-            [ email>> "email" set-value ]
-            tri
-        ] >>init
-
-        { login "edit-profile" } >>template
-
-        [
-            uid "username" set-value
-
-            {
-                { "realname" [ [ v-one-line ] v-optional ] }
-                { "password" [ ] }
-                { "new-password" [ [ v-password ] v-optional ] }
-                { "verify-password" [ [ v-password ] v-optional ] } 
-                { "email" [ [ v-email ] v-optional ] }
-            } validate-params
-
-            { "password" "new-password" "verify-password" }
-            [ value empty? not ] contains? [
-                "password" value uid check-login
-                [ "incorrect password" validation-error ] unless
-
-                same-password-twice
-            ] when
-        ] >>validate
-
-        [
-            logged-in-user get
-
-            "new-password" value dup empty?
-            [ drop ] [ >>encoded-password ] if
-
-            "realname" value >>realname
-            "email" value >>email
-
-            t >>changed?
-
-            drop
-
-            URL" $login" end-flow
-        ] >>submit ;
-
-! ! ! Password recovery
-
-SYMBOL: lost-password-from
-
-: current-host ( -- string )
-    request get url>> host>> host-name or ;
-
-: new-password-url ( user -- url )
-    "recover-3"
-    swap [
-        [ username>> "username" set ]
-        [ ticket>> "ticket" set ]
-        bi
-    ] H{ } make-assoc
-    derive-url ;
-
-: password-email ( user -- email )
-    smtp:<email>
-        [ "[ " % current-host % " ] password recovery" % ] "" make >>subject
-        lost-password-from get >>from
-        over email>> 1array >>to
-        [
-            "This e-mail was sent by the application server on " % current-host % "\n" %
-            "because somebody, maybe you, clicked on a ``recover password'' link in the\n" %
-            "login form, and requested a new password for the user named ``" %
-            over username>> % "''.\n" %
-            "\n" %
-            "If you believe that this request was legitimate, you may click the below link in\n" %
-            "your browser to set a new password for your account:\n" %
-            "\n" %
-            swap new-password-url %
-            "\n\n" %
-            "Love,\n" %
-            "\n" %
-            "  FactorBot\n" %
-        ] "" make >>body ;
-
-: send-password-email ( user -- )
-    '[ , password-email smtp:send-email ]
-    "E-mail send thread" spawn drop ;
-
-: <recover-action-1> ( -- action )
-    <page-action>
-        { login "recover-1" } >>template
-
-        [
-            {
-                { "username" [ v-username ] }
-                { "email" [ v-email ] }
-                { "captcha" [ v-captcha ] }
-            } validate-params
-        ] >>validate
-
-        [
-            "email" value "username" value
-            users issue-ticket [
-                send-password-email
-            ] when*
-
-            URL" $login/recover-2" <redirect>
-        ] >>submit ;
-
-: <recover-action-2> ( -- action )
-    <page-action>
-        { login "recover-2" } >>template ;
-
-: <recover-action-3> ( -- action )
-    <page-action>
-        [
-            {
-                { "username" [ v-username ] }
-                { "ticket" [ v-required ] }
-            } validate-params
-        ] >>init
-
-        { login "recover-3" } >>template
-
-        [
-            {
-                { "username" [ v-username ] }
-                { "ticket" [ v-required ] }
-                { "new-password" [ v-password ] }
-                { "verify-password" [ v-password ] }
-            } validate-params
-
-            same-password-twice
-        ] >>validate
-
-        [
-            "ticket" value
-            "username" value
-            users claim-ticket [
-                "new-password" value >>encoded-password
-                users update-user
-
-                URL" $login/recover-4" <redirect>
-            ] [
-                <403>
-            ] if*
-        ] >>submit ;
-
-: <recover-action-4> ( -- action )
-    <page-action>
-        { login "recover-4" } >>template ;
-
-! ! ! Logout
-: <logout-action> ( -- action )
-    <action>
-        [
-            f set-uid
-            URL" $login" end-flow
-        ] >>submit ;
-
-! ! ! Authentication logic
-
-TUPLE: protected < filter-responder capabilities ;
-
-C: <protected> protected
-
-: show-login-page ( -- response )
-    begin-flow
-    URL" $login/login" <redirect> ;
-
-: check-capabilities ( responder user -- ? )
-    [ capabilities>> ] bi@ subset? ;
-
-M: protected call-responder* ( path responder -- response )
-    uid dup [
-        users get-user 2dup check-capabilities [
-            [ logged-in-user set ] [ save-user-after ] bi
-            call-next-method
-        ] [
-            3drop show-login-page
-        ] if
-    ] [
-        3drop show-login-page
-    ] if ;
-
-M: login call-responder* ( path responder -- response )
-    dup login set
-    call-next-method ;
-
-: <login-boilerplate> ( responder -- responder' )
-    <boilerplate>
-        { login "boilerplate" } >>template ;
-
-: <login> ( responder -- auth )
-    login new-dispatcher
-        swap >>default
-        <login-action> <login-boilerplate> "login" add-responder
-        <logout-action> <login-boilerplate> "logout" add-responder
-        users-in-db >>users
-        sha-256 >>checksum ;
-
-! ! ! Configuration
-
-: allow-edit-profile ( login -- login )
-    <edit-profile-action> f <protected> <login-boilerplate>
-        "edit-profile" add-responder ;
-
-: allow-registration ( login -- login )
-    <register-action> <login-boilerplate>
-        "register" add-responder ;
-
-: allow-password-recovery ( login -- login )
-    <recover-action-1> <login-boilerplate>
-        "recover-password" add-responder
-    <recover-action-2> <login-boilerplate>
-        "recover-2" add-responder
-    <recover-action-3> <login-boilerplate>
-        "recover-3" add-responder
-    <recover-action-4> <login-boilerplate>
-        "recover-4" add-responder ;
-
-: allow-edit-profile? ( -- ? )
-    login get responders>> "edit-profile" swap key? ;
-
-: allow-registration? ( -- ? )
-    login get responders>> "register" swap key? ;
-
-: allow-password-recovery? ( -- ? )
-    login get responders>> "recover-password" swap key? ;
diff --git a/extra/furnace/boilerplate/boilerplate.factor b/extra/furnace/boilerplate/boilerplate.factor
deleted file mode 100644
index 42f132ada1..0000000000
--- a/extra/furnace/boilerplate/boilerplate.factor
+++ /dev/null
@@ -1,25 +0,0 @@
-! Copyright (c) 2008 Slava Pestov
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel namespaces
-html.templates html.templates.chloe
-locals
-http.server
-http.server.filters
-furnace ;
-IN: furnace.boilerplate
-
-TUPLE: boilerplate < filter-responder template ;
-
-: <boilerplate> f boilerplate boa ;
-
-M:: boilerplate call-responder* ( path responder -- )
-    path responder call-next-method
-    dup content-type>> "text/html" = [
-        clone [| body |
-            [
-                body
-                responder template>> resolve-template-path <chloe>
-                with-boilerplate
-            ]
-        ] change-body
-    ] when ;
diff --git a/extra/furnace/flows/flows.factor b/extra/furnace/flows/flows.factor
deleted file mode 100644
index eb98c1a26b..0000000000
--- a/extra/furnace/flows/flows.factor
+++ /dev/null
@@ -1,78 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors namespaces sequences arrays kernel
-assocs assocs.lib hashtables math.parser urls combinators
-furnace http http.server http.server.filters furnace.sessions
-html.elements html.templates.chloe.syntax ;
-IN: furnace.flows
-
-TUPLE: flows < filter-responder ;
-
-C: <flows> flows
-
-: begin-flow* ( -- id )
-    request get
-    [ url>> ] [ post-data>> ] [ method>> ] tri 3array
-    flows sget set-at-unique
-    session-changed ;
-
-: end-flow-post ( url post-data -- response )
-    request [
-        clone
-            "POST" >>method
-            swap >>post-data
-            swap >>url
-    ] change
-    request get url>> path>> split-path
-    flows get responder>> call-responder ;
-
-: end-flow* ( url id -- response )
-    flows sget at [
-        first3 {
-            { "GET" [ drop <redirect> ] }
-            { "HEAD" [ drop <redirect> ] }
-            { "POST" [ end-flow-post ] }
-        } case
-    ] [ <redirect> ] ?if ;
-
-SYMBOL: flow-id
-
-: flow-id-key "factorflowid" ;
-
-: begin-flow ( -- )
-    begin-flow* flow-id set ;
-
-: end-flow ( default -- response )
-    flow-id get end-flow* ;
-
-M: flows call-responder*
-    dup flows set
-    flow-id-key request get request-params at flow-id set
-    call-next-method ;
-
-M: flows init-session*
-    H{ } clone flows sset
-    call-next-method ;
-
-M: flows link-attr ( tag -- )
-    drop
-    "flow" optional-attr {
-        { "none" [ flow-id off ] }
-        { "begin" [ begin-flow ] }
-        { "current" [ ] }
-        { f [ ] }
-    } case ;
-
-M: flows modify-query ( query responder -- query' )
-    drop
-    flow-id get [ flow-id-key associate assoc-union ] when* ;
-
-M: flows hidden-form-field ( responder -- )
-    drop
-    flow-id get [
-        <input
-            "hidden" =type
-            flow-id-key =name
-            =value
-        input/>
-    ] when* ;
diff --git a/extra/furnace/furnace.factor b/extra/furnace/furnace.factor
deleted file mode 100644
index 370c4f84a3..0000000000
--- a/extra/furnace/furnace.factor
+++ /dev/null
@@ -1,183 +0,0 @@
-! Copyright (C) 2003, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors arrays kernel combinators assocs
-continuations namespaces sequences splitting words
-vocabs.loader classes
-fry urls multiline
-xml
-xml.data
-xml.writer
-xml.utilities
-html.components
-html.elements
-html.templates
-html.templates.chloe
-html.templates.chloe.syntax
-http
-http.server
-http.server.redirection
-http.server.responses
-qualified ;
-QUALIFIED-WITH: assocs a
-IN: furnace
-
-: nested-responders ( -- seq )
-    responder-nesting get a:values ;
-
-: each-responder ( quot -- )
-   nested-responders swap each ; inline
-
-: base-path ( string -- pair )
-    dup responder-nesting get
-    [ second class word-name = ] with find nip
-    [ first ] [ "No such responder: " swap append throw ] ?if ;
-
-: resolve-base-path ( string -- string' )
-    "$" ?head [
-        [
-            "/" split1 [ base-path [  "/" % % ] each "/" % ] dip %
-        ] "" make
-    ] when ;
-
-: vocab-path ( vocab -- path )
-    dup vocab-dir vocab-append-path ;
-
-: resolve-template-path ( pair -- path )
-    [
-        first2 [ word-vocabulary vocab-path % ] [ "/" % % ] bi*
-    ] "" make ;
-
-GENERIC: modify-query ( query responder -- query' )
-
-M: object modify-query drop ;
-
-: adjust-url ( url -- url' )
-    clone
-        [ [ modify-query ] each-responder ] change-query
-        [ resolve-base-path ] change-path
-    relative-to-request ;
-
-: <redirect> ( url -- response )
-    adjust-url request get method>> {
-        { "GET" [ <temporary-redirect> ] }
-        { "HEAD" [ <temporary-redirect> ] }
-        { "POST" [ <permanent-redirect> ] }
-    } case ;
-
-GENERIC: hidden-form-field ( responder -- )
-
-M: object hidden-form-field drop ;
-
-: request-params ( request -- assoc )
-    dup method>> {
-        { "GET" [ url>> query>> ] }
-        { "HEAD" [ url>> query>> ] }
-        { "POST" [ post-data>> ] }
-    } case ;
-
-SYMBOL: exit-continuation
-
-: exit-with exit-continuation get continue-with ;
-
-: with-exit-continuation ( quot -- )
-    '[ exit-continuation set @ ] callcc1 exit-continuation off ;
-
-! Chloe tags
-: parse-query-attr ( string -- assoc )
-    dup empty?
-    [ drop f ] [ "," split [ dup value ] H{ } map>assoc ] if ;
-
-CHLOE: atom
-    [ "title" required-attr ]
-    [ "href" required-attr ]
-    [ "query" optional-attr parse-query-attr ] tri
-    <url>
-        swap >>query
-        swap >>path
-    adjust-url relative-to-request
-    add-atom-feed ;
-
-CHLOE: write-atom drop write-atom-feeds ;
-
-GENERIC: link-attr ( tag responder -- )
-
-M: object link-attr 2drop ;
-
-: link-attrs ( tag -- )
-    '[ , _ link-attr ] each-responder ;
-
-: a-start-tag ( tag -- )
-    [
-        <a
-            dup link-attrs
-            dup "value" optional-attr [ value f ] [
-                [ "href" required-attr ]
-                [ "query" optional-attr parse-query-attr ]
-                bi
-            ] ?if
-            <url>
-                swap >>query
-                swap >>path
-            adjust-url relative-to-request =href
-        a>
-    ] with-scope ;
-
-CHLOE: a
-    [ a-start-tag ]
-    [ process-tag-children ]
-    [ drop </a> ]
-    tri ;
-
-: form-start-tag ( tag -- )
-    [
-        [
-            <form
-            "POST" =method
-            [ link-attrs ]
-            [ "action" required-attr resolve-base-path =action ]
-            [ tag-attrs non-chloe-attrs-only print-attrs ]
-            tri
-            form>
-        ] [
-            [ hidden-form-field ] each-responder
-            "for" optional-attr [ hidden render ] when*
-        ] bi
-    ] with-scope ;
-
-CHLOE: form
-    [ form-start-tag ]
-    [ process-tag-children ]
-    [ drop </form> ]
-    tri ;
-
-STRING: button-tag-markup
-<t:form class="inline" xmlns:t="http://factorcode.org/chloe/1.0">
-    <button type="submit"></button>
-</t:form>
-;
-
-: add-tag-attrs ( attrs tag -- )
-    tag-attrs swap update ;
-
-CHLOE: button
-    button-tag-markup string>xml delegate
-    {
-        [ [ tag-attrs chloe-attrs-only ] dip add-tag-attrs ]
-        [ [ tag-attrs non-chloe-attrs-only ] dip "button" tag-named add-tag-attrs ]
-        [ [ children>string 1array ] dip "button" tag-named set-tag-children ]
-        [ nip ]
-    } 2cleave process-chloe-tag ;
-
-: attr>word ( value -- word/f )
-    dup ":" split1 swap lookup
-    [ ] [ "No such word: " swap append throw ] ?if ;
-
-: attr>var ( value -- word/f )
-    attr>word dup symbol? [
-        "Must be a symbol: " swap append throw
-    ] unless ;
-
-: if-satisfied? ( tag -- ? )
-    "code" required-attr attr>word execute ;
-
-CHLOE: if dup if-satisfied? [ process-tag-children ] [ drop ] if ;
diff --git a/extra/furnace/rss/rss.factor b/extra/furnace/rss/rss.factor
deleted file mode 100644
index a94ef4fe51..0000000000
--- a/extra/furnace/rss/rss.factor
+++ /dev/null
@@ -1,14 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel fry
-rss http.server.responses furnace.actions ;
-IN: furnace.rss
-
-: <feed-content> ( body -- response )
-    feed>xml "application/atom+xml" <content> ;
-
-TUPLE: feed-action < action feed ;
-
-: <feed-action> ( -- feed )
-    feed-action new-action
-        dup '[ , feed>> call <feed-content> ] >>display ;
diff --git a/extra/furnace/sessions/sessions.factor b/extra/furnace/sessions/sessions.factor
deleted file mode 100755
index 5ea389c87e..0000000000
--- a/extra/furnace/sessions/sessions.factor
+++ /dev/null
@@ -1,154 +0,0 @@
-! Copyright (C) 2008 Doug Coleman, Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: assocs kernel math.intervals math.parser namespaces
-random accessors quotations hashtables sequences continuations
-fry calendar combinators destructors alarms
-db db.tuples db.types
-http http.server http.server.dispatchers http.server.filters
-html.elements furnace ;
-IN: furnace.sessions
-
-TUPLE: session id expires uid namespace changed? ;
-
-: <session> ( id -- session )
-    session new
-        swap >>id ;
-
-session "SESSIONS"
-{
-    { "id" "ID" +random-id+ system-random-generator }
-    { "expires" "EXPIRES" TIMESTAMP +not-null+ }
-    { "uid" "UID" { VARCHAR 255 } }
-    { "namespace" "NAMESPACE" FACTOR-BLOB }
-} define-persistent
-
-: get-session ( id -- session )
-    dup [ <session> select-tuple ] when ;
-
-: init-sessions-table session ensure-table ;
-
-: start-expiring-sessions ( db seq -- )
-    '[
-        , , [
-            session new
-                -1.0/0.0 now [a,b] >>expires
-            delete-tuples
-        ] with-db
-    ] 5 minutes every drop ;
-
-GENERIC: init-session* ( responder -- )
-
-M: object init-session* drop ;
-
-M: dispatcher init-session* default>> init-session* ;
-
-M: filter-responder init-session* responder>> init-session* ;
-
-TUPLE: sessions < filter-responder timeout domain ;
-
-: <sessions> ( responder -- responder' )
-    sessions new
-        swap >>responder
-        20 minutes >>timeout ;
-
-: (session-changed) ( session -- )
-    t >>changed? drop ;
-
-: session-changed ( -- )
-    session get (session-changed) ;
-
-: sget ( key -- value )
-    session get namespace>> at ;
-
-: sset ( value key -- )
-    session get
-    [ namespace>> set-at ] [ (session-changed) ] bi ;
-
-: schange ( key quot -- )
-    session get
-    [ namespace>> swap change-at ] keep
-    (session-changed) ; inline
-
-: uid ( -- uid )
-    session get uid>> ;
-
-: set-uid ( uid -- )
-    session get [ (>>uid) ] [ (session-changed) ] bi ;
-
-: init-session ( session -- )
-    session [ sessions get init-session* ] with-variable ;
-
-: cutoff-time ( -- time )
-    sessions get timeout>> from-now ;
-
-: touch-session ( session -- )
-    cutoff-time >>expires drop ;
-
-: empty-session ( -- session )
-    f <session>
-        H{ } clone >>namespace
-        dup touch-session ;
-
-: begin-session ( -- session )
-    empty-session [ init-session ] [ insert-tuple ] [ ] tri ;
-
-! Destructor
-TUPLE: session-saver session ;
-
-C: <session-saver> session-saver
-
-M: session-saver dispose
-    session>> dup changed?>> [
-        [ touch-session ] [ update-tuple ] bi
-    ] [ drop ] if ;
-
-: save-session-after ( session -- )
-    <session-saver> &dispose drop ;
-
-: existing-session ( path session -- response )
-    [ session set ] [ save-session-after ] bi
-    sessions get responder>> call-responder ;
-
-: session-id-key "factorsessid" ;
-
-: cookie-session-id ( request -- id/f )
-    session-id-key get-cookie
-    dup [ value>> string>number ] when ;
-
-: post-session-id ( request -- id/f )
-    session-id-key swap post-data>> at string>number ;
-
-: request-session-id ( -- id/f )
-    request get dup method>> {
-        { "GET" [ cookie-session-id ] }
-        { "HEAD" [ cookie-session-id ] }
-        { "POST" [ post-session-id ] }
-    } case ;
-
-: request-session ( -- session/f )
-    request-session-id get-session ;
-
-: <session-cookie> ( id -- cookie )
-    session-id-key <cookie>
-        "$sessions" resolve-base-path >>path
-        sessions get timeout>> from-now >>expires
-        sessions get domain>> >>domain ;
-
-: put-session-cookie ( response -- response' )
-    session get id>> number>string <session-cookie> put-cookie ;
-
-M: sessions hidden-form-field ( responder -- )
-    drop
-    <input
-        "hidden" =type
-        session-id-key =name
-        session get id>> number>string =value
-    input/> ;
-
-M: sessions call-responder* ( path responder -- response )
-    sessions set
-    request-session [ begin-session ] unless*
-    existing-session put-session-cookie ;
-
-: logout-all-sessions ( uid -- )
-    session new swap >>uid delete-tuples ;
diff --git a/extra/game-input/authors.txt b/extra/game-input/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/game-input/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/game-input/backend/authors.txt b/extra/game-input/backend/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/game-input/backend/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/game-input/backend/backend.factor b/extra/game-input/backend/backend.factor
new file mode 100644
index 0000000000..df61179da7
--- /dev/null
+++ b/extra/game-input/backend/backend.factor
@@ -0,0 +1,21 @@
+USING: eval multiline system combinators ;
+IN: game-input.backend
+
+STRING: set-backend-for-macosx
+USING: namespaces parser game-input.backend.iokit ;
+<< "game-input" (use+) >>
+iokit-game-input-backend game-input-backend set-global
+;
+
+STRING: set-backend-for-windows
+USING: namespaces parser game-input.backend.dinput ;
+<< "game-input" (use+) >>
+dinput-game-input-backend game-input-backend set-global
+;
+
+{
+    { [ os macosx? ] [ set-backend-for-macosx eval ] }
+    { [ os windows? ] [ set-backend-for-windows eval ] }
+    { [ t ] [ ] }
+} cond
+
diff --git a/extra/game-input/backend/dinput/authors.txt b/extra/game-input/backend/dinput/authors.txt
new file mode 100755
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/game-input/backend/dinput/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/game-input/backend/dinput/dinput.factor b/extra/game-input/backend/dinput/dinput.factor
new file mode 100755
index 0000000000..116faf60cd
--- /dev/null
+++ b/extra/game-input/backend/dinput/dinput.factor
@@ -0,0 +1,288 @@
+USING: windows.dinput windows.dinput.constants parser
+symbols alien.c-types windows.ole32 namespaces assocs kernel
+arrays vectors windows.kernel32 windows.com windows.dinput
+shuffle windows.user32 windows.messages sequences combinators
+math.geometry.rect ui.windows accessors math windows alien
+alien.strings io.encodings.utf16 continuations byte-arrays
+locals game-input.backend.dinput.keys-array ;
+<< "game-input" (use+) >>
+IN: game-input.backend.dinput
+
+SINGLETON: dinput-game-input-backend
+
+SYMBOLS: +dinput+ +keyboard-device+ +keyboard-state+
+    +controller-devices+ +controller-guids+
+    +device-change-window+ +device-change-handle+ ;
+
+: create-dinput ( -- )
+    f GetModuleHandle DIRECTINPUT_VERSION IDirectInput8W-iid
+    f <void*> [ f DirectInput8Create ole32-error ] keep *void*
+    +dinput+ set-global ;
+
+: delete-dinput ( -- )
+    +dinput+ global [ com-release f ] change-at ;
+
+: device-for-guid ( guid -- device )
+    +dinput+ get swap f <void*>
+    [ f IDirectInput8W::CreateDevice ole32-error ] keep *void* ;
+
+: set-coop-level ( device -- )
+    +device-change-window+ get DISCL_BACKGROUND DISCL_NONEXCLUSIVE bitor
+    IDirectInputDevice8W::SetCooperativeLevel ole32-error ;
+
+: set-data-format ( device format-symbol -- )
+    get IDirectInputDevice8W::SetDataFormat ole32-error ;
+
+: configure-keyboard ( keyboard -- )
+    [ c_dfDIKeyboard_HID set-data-format ] [ set-coop-level ] bi ;
+: configure-controller ( controller -- )
+    [ c_dfDIJoystick2 set-data-format ] [ set-coop-level ] bi ;
+
+: find-keyboard ( -- )
+    GUID_SysKeyboard device-for-guid
+    [ configure-keyboard ]
+    [ +keyboard-device+ set-global ] bi
+    256 <byte-array> <keys-array> keyboard-state boa
+    +keyboard-state+ set-global ;
+
+: device-info ( device -- DIDEVICEIMAGEINFOW )
+    "DIDEVICEINSTANCEW" <c-object>
+    "DIDEVICEINSTANCEW" heap-size over set-DIDEVICEINSTANCEW-dwSize
+    [ IDirectInputDevice8W::GetDeviceInfo ole32-error ] keep ;
+: device-caps ( device -- DIDEVCAPS )
+    "DIDEVCAPS" <c-object>
+    "DIDEVCAPS" heap-size over set-DIDEVCAPS-dwSize
+    [ IDirectInputDevice8W::GetCapabilities ole32-error ] keep ;
+
+: <guid> ( memory -- byte-array )
+    "GUID" heap-size memory>byte-array ;
+
+: device-guid ( device -- guid )
+    device-info DIDEVICEINSTANCEW-guidInstance <guid> ;
+
+: device-attached? ( device -- ? )
+    +dinput+ get swap device-guid
+    IDirectInput8W::GetDeviceStatus S_OK = ;
+
+: find-device-axes-callback ( -- alien )
+    [ ! ( lpddoi pvRef -- BOOL )
+        +controller-devices+ get at
+        swap DIDEVICEOBJECTINSTANCEW-guidType <guid> {
+            { [ dup GUID_XAxis = ] [ drop 0.0 >>x ] }
+            { [ dup GUID_YAxis = ] [ drop 0.0 >>y ] }
+            { [ dup GUID_ZAxis = ] [ drop 0.0 >>z ] }
+            { [ dup GUID_RxAxis = ] [ drop 0.0 >>rx ] }
+            { [ dup GUID_RyAxis = ] [ drop 0.0 >>ry ] }
+            { [ dup GUID_RzAxis = ] [ drop 0.0 >>rz ] }
+            { [ dup GUID_Slider = ] [ drop 0.0 >>slider ] }
+            [ drop ]
+        } cond drop
+        DIENUM_CONTINUE
+    ] LPDIENUMDEVICEOBJECTSCALLBACKW ;
+
+: find-device-axes ( device controller-state -- controller-state )
+    swap [ +controller-devices+ get set-at ] 2keep
+    find-device-axes-callback over DIDFT_AXIS
+    IDirectInputDevice8W::EnumObjects ole32-error ;
+
+: controller-state-template ( device -- controller-state )
+    controller-state new
+    over device-caps
+    [ DIDEVCAPS-dwButtons f <array> >>buttons ]
+    [ DIDEVCAPS-dwPOVs zero? f pov-neutral ? >>pov ] bi
+    find-device-axes ;
+
+: device-known? ( guid -- ? )
+    +controller-guids+ get key? ; inline
+
+: (add-controller) ( guid -- )
+    device-for-guid {
+        [ configure-controller ]
+        [ controller-state-template ]
+        [ dup device-guid +controller-guids+ get set-at ]
+        [ +controller-devices+ get set-at ]
+    } cleave ;
+
+: add-controller ( guid -- )
+    dup <guid> device-known? [ drop ] [ (add-controller) ] if ;
+
+: remove-controller ( device -- )
+    [ +controller-devices+ get delete-at ]
+    [ device-guid +controller-guids+ get delete-at ]
+    [ com-release ] tri ;
+
+: find-controller-callback ( -- alien )
+    [ ! ( lpddi pvRef -- BOOL )
+        drop DIDEVICEINSTANCEW-guidInstance add-controller
+        DIENUM_CONTINUE
+    ] LPDIENUMDEVICESCALLBACKW ;
+
+: find-controllers ( -- )
+    +dinput+ get DI8DEVCLASS_GAMECTRL find-controller-callback
+    f DIEDFL_ATTACHEDONLY IDirectInput8W::EnumDevices ole32-error ;
+
+: set-up-controllers ( -- )
+    4 <vector> +controller-devices+ set-global
+    4 <vector> +controller-guids+ set-global
+    find-controllers ;
+
+: find-and-remove-detached-devices ( -- )
+    +controller-devices+ get keys
+    [ device-attached? not ] filter
+    [ remove-controller ] each ;
+
+: device-interface? ( dbt-broadcast-hdr -- ? )
+    DEV_BROADCAST_HDR-dbch_devicetype DBT_DEVTYP_DEVICEINTERFACE = ;
+
+: device-arrived ( dbt-broadcast-hdr -- )
+    device-interface? [ find-controllers ] when ;
+
+: device-removed ( dbt-broadcast-hdr -- )
+    device-interface? [ find-and-remove-detached-devices ] when ;
+
+: handle-wm-devicechange ( hWnd uMsg wParam lParam -- )
+    [ 2drop ] 2dip swap {
+        { [ dup DBT_DEVICEARRIVAL = ]         [ drop <alien> device-arrived ] }
+        { [ dup DBT_DEVICEREMOVECOMPLETE = ]  [ drop <alien> device-removed ] }
+        [ 2drop ]
+    } cond ;
+
+TUPLE: window-rect < rect window-loc ;
+: <zero-window-rect> ( -- window-rect )
+    window-rect new
+    { 0 0 } >>window-loc
+    { 0 0 } >>loc
+    { 0 0 } >>dim ;
+
+: (device-notification-filter) ( -- DEV_BROADCAST_DEVICEW )
+    "DEV_BROADCAST_DEVICEW" <c-object>
+    "DEV_BROADCAST_DEVICEW" heap-size over set-DEV_BROADCAST_DEVICEW-dbcc_size
+    DBT_DEVTYP_DEVICEINTERFACE over set-DEV_BROADCAST_DEVICEW-dbcc_devicetype ;
+
+: create-device-change-window ( -- )
+    <zero-window-rect> create-window
+    [
+        (device-notification-filter)
+        DEVICE_NOTIFY_WINDOW_HANDLE DEVICE_NOTIFY_ALL_INTERFACE_CLASSES bitor
+        RegisterDeviceNotification
+        +device-change-handle+ set-global
+    ]
+    [ +device-change-window+ set-global ] bi ;
+
+: close-device-change-window ( -- )
+    +device-change-handle+ global
+    [ UnregisterDeviceNotification drop f ] change-at
+    +device-change-window+ global
+    [ DestroyWindow win32-error=0/f f ] change-at ;
+
+: add-wm-devicechange ( -- )
+    [ 4dup handle-wm-devicechange DefWindowProc ]
+    WM_DEVICECHANGE add-wm-handler ;
+
+: remove-wm-devicechange ( -- )
+    WM_DEVICECHANGE wm-handlers get-global delete-at ;
+
+: release-controllers ( -- )
+    +controller-devices+ global [
+        [ drop com-release ] assoc-each f
+    ] change-at
+    f +controller-guids+ set-global ;
+
+: release-keyboard ( -- )
+    +keyboard-device+ global
+    [ com-release f ] change-at
+    f +keyboard-state+ set-global ;
+
+M: dinput-game-input-backend (open-game-input)
+    create-dinput
+    create-device-change-window
+    find-keyboard
+    set-up-controllers
+    add-wm-devicechange ;
+
+M: dinput-game-input-backend (close-game-input)
+    remove-wm-devicechange
+    release-controllers
+    release-keyboard
+    close-device-change-window
+    delete-dinput ;
+
+M: dinput-game-input-backend (reset-game-input)
+    {
+        +dinput+ +keyboard-device+ +keyboard-state+
+        +controller-devices+ +controller-guids+
+        +device-change-window+ +device-change-handle+
+    } [ f swap set-global ] each ;
+
+M: dinput-game-input-backend get-controllers
+    +controller-devices+ get
+    [ drop controller boa ] { } assoc>map ;
+
+M: dinput-game-input-backend product-string
+    handle>> device-info DIDEVICEINSTANCEW-tszProductName
+    utf16n alien>string ;
+
+M: dinput-game-input-backend product-id
+    handle>> device-info DIDEVICEINSTANCEW-guidProduct <guid> ;
+M: dinput-game-input-backend instance-id
+    handle>> device-guid ;
+
+:: with-acquisition ( device acquired-quot succeeded-quot failed-quot -- result/f )
+    device IDirectInputDevice8W::Acquire succeeded? [
+        device acquired-quot call
+        succeeded-quot call
+    ] failed-quot if ; inline
+
+: pov-values
+    {
+        pov-up pov-up-right pov-right pov-down-right
+        pov-down pov-down-left pov-left pov-up-left
+    } ; inline
+
+: >axis ( long -- float )
+    32767 - 32767.0 /f ;
+: >slider ( long -- float )
+    65535.0 /f ;
+: >pov ( long -- symbol )
+    dup HEX: FFFF bitand HEX: FFFF =
+    [ drop pov-neutral ]
+    [ 2750 + 4500 /i pov-values nth ] if ;
+: >buttons ( alien length -- array )
+    memory>byte-array <keys-array> ;
+
+: (fill-if) ( controller-state DIJOYSTATE2 ? quot -- )
+    [ drop ] compose [ 2drop ] if ; inline
+
+: fill-controller-state ( controller-state DIJOYSTATE2 -- controller-state )
+    {
+        [ over x>> [ DIJOYSTATE2-lX >axis >>x ] (fill-if) ]
+        [ over y>> [ DIJOYSTATE2-lY >axis >>y ] (fill-if) ]
+        [ over z>> [ DIJOYSTATE2-lZ >axis >>z ] (fill-if) ]
+        [ over rx>> [ DIJOYSTATE2-lRx >axis >>rx ] (fill-if) ]
+        [ over ry>> [ DIJOYSTATE2-lRy >axis >>ry ] (fill-if) ]
+        [ over rz>> [ DIJOYSTATE2-lRz >axis >>rz ] (fill-if) ]
+        [ over slider>> [ DIJOYSTATE2-rglSlider *long >slider >>slider ] (fill-if) ]
+        [ over pov>> [ DIJOYSTATE2-rgdwPOV *uint >pov >>pov ] (fill-if) ]
+        [ DIJOYSTATE2-rgbButtons over buttons>> length >buttons >>buttons ]
+    } 2cleave ;
+
+: get-device-state ( device byte-array -- )
+    [ dup IDirectInputDevice8W::Poll ole32-error ] dip
+    [ length ] keep
+    IDirectInputDevice8W::GetDeviceState ole32-error ;
+
+: (read-controller) ( handle template -- state )
+    swap [ "DIJOYSTATE2" heap-size <byte-array> [ get-device-state ] keep ]
+    [ fill-controller-state ] [ drop f ] with-acquisition ;
+
+M: dinput-game-input-backend read-controller
+    handle>> dup +controller-devices+ get at
+    [ (read-controller) ] [ drop f ] if* ;
+
+M: dinput-game-input-backend calibrate-controller
+    handle>> f 0 IDirectInputDevice8W::RunControlPanel ole32-error ;
+
+M: dinput-game-input-backend read-keyboard
+    +keyboard-device+ get
+    [ +keyboard-state+ get [ keys>> underlying>> get-device-state ] keep ]
+    [ ] [ f ] with-acquisition ;
diff --git a/extra/game-input/backend/dinput/keys-array/keys-array.factor b/extra/game-input/backend/dinput/keys-array/keys-array.factor
new file mode 100755
index 0000000000..b2dbe9ad93
--- /dev/null
+++ b/extra/game-input/backend/dinput/keys-array/keys-array.factor
@@ -0,0 +1,15 @@
+USING: sequences sequences.private math alien.c-types
+accessors ;
+IN: game-input.backend.dinput.keys-array
+
+TUPLE: keys-array underlying ;
+C: <keys-array> keys-array
+
+: >key ( byte -- ? )
+    HEX: 80 bitand c-bool> ;
+
+M: keys-array length underlying>> length ;
+M: keys-array nth-unsafe underlying>> nth-unsafe >key ;
+
+INSTANCE: keys-array sequence
+
diff --git a/extra/game-input/backend/dinput/summary.txt b/extra/game-input/backend/dinput/summary.txt
new file mode 100755
index 0000000000..f758a5f83a
--- /dev/null
+++ b/extra/game-input/backend/dinput/summary.txt
@@ -0,0 +1 @@
+DirectInput backend for game-input
diff --git a/extra/game-input/backend/dinput/tags.txt b/extra/game-input/backend/dinput/tags.txt
new file mode 100755
index 0000000000..9098dfdba4
--- /dev/null
+++ b/extra/game-input/backend/dinput/tags.txt
@@ -0,0 +1,5 @@
+unportable
+input
+gamepads
+joysticks
+windows
diff --git a/extra/game-input/backend/iokit/authors.txt b/extra/game-input/backend/iokit/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/game-input/backend/iokit/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/game-input/backend/iokit/iokit.factor b/extra/game-input/backend/iokit/iokit.factor
new file mode 100755
index 0000000000..5267dd6d6e
--- /dev/null
+++ b/extra/game-input/backend/iokit/iokit.factor
@@ -0,0 +1,278 @@
+USING: cocoa cocoa.plists core-foundation iokit iokit.hid
+kernel cocoa.enumeration destructors math.parser cocoa.application 
+sequences locals combinators.short-circuit threads
+symbols namespaces assocs vectors arrays combinators
+core-foundation.run-loop accessors sequences.private
+alien.c-types math parser ;
+<< "game-input" (use+) >>
+IN: game-input.backend.iokit
+
+SINGLETON: iokit-game-input-backend
+
+: hid-manager-matching ( matching-seq -- alien )
+    f 0 IOHIDManagerCreate
+    [ swap >plist IOHIDManagerSetDeviceMatchingMultiple ]
+    keep ;
+
+: devices-from-hid-manager ( manager -- vector )
+    [
+        IOHIDManagerCopyDevices
+        [ &CFRelease NSFastEnumeration>vector ] [ f ] if*
+    ] with-destructors ;
+
+: game-devices-matching-seq
+    {
+        H{ { "DeviceUsage" 4 } { "DeviceUsagePage" 1 } } ! joysticks
+        H{ { "DeviceUsage" 5 } { "DeviceUsagePage" 1 } } ! gamepads
+        H{ { "DeviceUsage" 6 } { "DeviceUsagePage" 1 } } ! keyboards
+    } ; inline
+
+: buttons-matching-hash
+    H{ { "UsagePage" 9 } { "Type" 2 } } ; inline
+: keys-matching-hash
+    H{ { "UsagePage" 7 } { "Type" 2 } } ; inline
+: x-axis-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 30 } { "Type" 1 } } ; inline
+: y-axis-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 31 } { "Type" 1 } } ; inline
+: z-axis-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 32 } { "Type" 1 } } ; inline
+: rx-axis-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 33 } { "Type" 1 } } ; inline
+: ry-axis-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 34 } { "Type" 1 } } ; inline
+: rz-axis-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 35 } { "Type" 1 } } ; inline
+: slider-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 36 } { "Type" 1 } } ; inline
+: hat-switch-matching-hash
+    H{ { "UsagePage" 1 } { "Usage" HEX: 39 } { "Type" 1 } } ; inline
+
+: device-elements-matching ( device matching-hash -- vector )
+    [
+        >plist 0 IOHIDDeviceCopyMatchingElements
+        [ &CFRelease NSFastEnumeration>vector ] [ f ] if*
+    ] with-destructors ;
+
+: button-count ( device -- button-count )
+    buttons-matching-hash device-elements-matching length ;
+
+: ?axis ( device hash -- axis/f )
+    device-elements-matching [ f ] [ first ] if-empty ;
+
+: ?x-axis ( device -- ? )
+    x-axis-matching-hash ?axis ;
+: ?y-axis ( device -- ? )
+    y-axis-matching-hash ?axis ;
+: ?z-axis ( device -- ? )
+    z-axis-matching-hash ?axis ;
+: ?rx-axis ( device -- ? )
+    rx-axis-matching-hash ?axis ;
+: ?ry-axis ( device -- ? )
+    ry-axis-matching-hash ?axis ;
+: ?rz-axis ( device -- ? )
+    rz-axis-matching-hash ?axis ;
+: ?slider ( device -- ? )
+    slider-matching-hash ?axis ;
+: ?hat-switch ( device -- ? )
+    hat-switch-matching-hash ?axis ;
+
+: hid-manager-matching-game-devices ( -- alien )
+    game-devices-matching-seq hid-manager-matching ;
+
+: device-property ( device key -- value )
+    <NSString> IOHIDDeviceGetProperty plist> ;
+: element-property ( element key -- value )
+    <NSString> IOHIDElementGetProperty plist> ;
+: set-element-property ( element key value -- )
+    [ <NSString> ] [ >plist ] bi* IOHIDElementSetProperty drop ;
+: transfer-element-property ( element from-key to-key -- )
+    [ dupd element-property ] dip swap set-element-property ;
+
+: controller-device? ( device -- ? )
+    {
+        [ 1 4 IOHIDDeviceConformsTo ]
+        [ 1 5 IOHIDDeviceConformsTo ]
+    } 1|| ;
+
+: element-usage ( element -- {usage-page,usage} )
+    [ IOHIDElementGetUsagePage ] [ IOHIDElementGetUsage ] bi
+    2array ;
+
+: button? ( {usage-page,usage} -- ? )
+    first 9 = ; inline
+: keyboard-key? ( {usage-page,usage} -- ? )
+    first 7 = ; inline
+: x-axis? ( {usage-page,usage} -- ? )
+    { 1 HEX: 30 } = ; inline
+: y-axis? ( {usage-page,usage} -- ? )
+    { 1 HEX: 31 } = ; inline
+: z-axis? ( {usage-page,usage} -- ? )
+    { 1 HEX: 32 } = ; inline
+: rx-axis? ( {usage-page,usage} -- ? )
+    { 1 HEX: 33 } = ; inline
+: ry-axis? ( {usage-page,usage} -- ? )
+    { 1 HEX: 34 } = ; inline
+: rz-axis? ( {usage-page,usage} -- ? )
+    { 1 HEX: 35 } = ; inline
+: slider? ( {usage-page,usage} -- ? )
+    { 1 HEX: 36 } = ; inline
+: hat-switch? ( {usage-page,usage} -- ? )
+    { 1 HEX: 39 } = ; inline
+
+: pov-values
+    {
+        pov-up pov-up-right pov-right pov-down-right
+        pov-down pov-down-left pov-left pov-up-left
+        pov-neutral
+    } ; inline
+
+: button-value ( value -- f/(0,1] )
+    IOHIDValueGetIntegerValue dup zero? [ drop f ] when ;
+: axis-value ( value -- [-1,1] )
+    kIOHIDValueScaleTypeCalibrated IOHIDValueGetScaledValue ;
+: pov-value ( value -- pov-direction )
+    IOHIDValueGetIntegerValue pov-values ?nth [ pov-neutral ] unless* ;
+
+: record-controller ( controller-state value -- )
+    dup IOHIDValueGetElement element-usage {
+        { [ dup button? ] [ [ button-value ] [ second 1- ] bi* rot buttons>> set-nth ] } 
+        { [ dup x-axis? ] [ drop axis-value >>x drop ] }
+        { [ dup y-axis? ] [ drop axis-value >>y drop ] }
+        { [ dup z-axis? ] [ drop axis-value >>z drop ] }
+        { [ dup rx-axis? ] [ drop axis-value >>rx drop ] }
+        { [ dup ry-axis? ] [ drop axis-value >>ry drop ] }
+        { [ dup rz-axis? ] [ drop axis-value >>rz drop ] }
+        { [ dup slider? ] [ drop axis-value >>slider drop ] }
+        { [ dup hat-switch? ] [ drop pov-value >>pov drop ] }
+        [ 3drop ]
+    } cond ;
+
+SYMBOLS: +hid-manager+ +keyboard-state+ +controller-states+ ;
+
+: ?set-nth ( value nth seq -- )
+    2dup bounds-check? [ set-nth-unsafe ] [ 3drop ] if ;
+
+: record-keyboard ( value -- )
+    dup IOHIDValueGetElement element-usage keyboard-key? [
+        [ IOHIDValueGetIntegerValue c-bool> ]
+        [ IOHIDValueGetElement IOHIDElementGetUsage ] bi
+        +keyboard-state+ get ?set-nth
+    ] [ drop ] if ;
+
+: default-calibrate-saturation ( element -- )
+    [ kIOHIDElementMinKey kIOHIDElementCalibrationSaturationMinKey transfer-element-property ]
+    [ kIOHIDElementMaxKey kIOHIDElementCalibrationSaturationMaxKey transfer-element-property ]
+    bi ;
+
+: default-calibrate-axis ( element -- )
+    [ kIOHIDElementCalibrationMinKey -1.0 set-element-property ]
+    [ kIOHIDElementCalibrationMaxKey 1.0 set-element-property ]
+    [ default-calibrate-saturation ]
+    tri ;
+
+: default-calibrate-slider ( element -- )
+    [ kIOHIDElementCalibrationMinKey 0.0 set-element-property ]
+    [ kIOHIDElementCalibrationMaxKey 1.0 set-element-property ]
+    [ default-calibrate-saturation ]
+    tri ;
+
+: (default) ( ? quot -- )
+    [ f ] if* ; inline
+
+: <device-controller-state> ( device -- controller-state )
+    {
+        [ ?x-axis [ default-calibrate-axis 0.0 ] (default) ]
+        [ ?y-axis [ default-calibrate-axis 0.0 ] (default) ]
+        [ ?z-axis [ default-calibrate-axis 0.0 ] (default) ]
+        [ ?rx-axis [ default-calibrate-axis 0.0 ] (default) ]
+        [ ?ry-axis [ default-calibrate-axis 0.0 ] (default) ]
+        [ ?rz-axis [ default-calibrate-axis 0.0 ] (default) ]
+        [ ?slider [ default-calibrate-slider 0.0 ] (default) ]
+        [ ?hat-switch pov-neutral and ]
+        [ button-count f <array> ]
+    } cleave controller-state boa ;
+
+: device-matched-callback ( -- alien )
+    [| context result sender device |
+        device controller-device? [
+            device <device-controller-state>
+            device +controller-states+ get set-at
+        ] when
+    ] IOHIDDeviceCallback ;
+
+: device-removed-callback ( -- alien )
+    [| context result sender device |
+        device +controller-states+ get delete-at
+    ] IOHIDDeviceCallback ;
+
+: device-input-callback ( -- alien )
+    [| context result sender value |
+        sender controller-device?
+        [ sender +controller-states+ get at value record-controller ]
+        [ value record-keyboard ]
+        if
+    ] IOHIDValueCallback ;
+
+: initialize-variables ( manager -- )
+    +hid-manager+ set-global
+    4 <vector> +controller-states+ set-global
+    256 f <array> +keyboard-state+ set-global ;
+
+M: iokit-game-input-backend (open-game-input)
+    hid-manager-matching-game-devices {
+        [ initialize-variables ]
+        [ device-matched-callback f IOHIDManagerRegisterDeviceMatchingCallback ]
+        [ device-removed-callback f IOHIDManagerRegisterDeviceRemovalCallback ]
+        [ device-input-callback f IOHIDManagerRegisterInputValueCallback ]
+        [ 0 IOHIDManagerOpen mach-error ]
+        [
+            CFRunLoopGetMain CFRunLoopDefaultMode
+            IOHIDManagerScheduleWithRunLoop
+        ]
+    } cleave ;
+
+M: iokit-game-input-backend (reset-game-input)
+    { +hid-manager+ +keyboard-state+ +controller-states+ }
+    [ f swap set-global ] each ;
+
+M: iokit-game-input-backend (close-game-input)
+    +hid-manager+ get-global [
+        +hid-manager+ global [ 
+            [
+                CFRunLoopGetMain CFRunLoopDefaultMode
+                IOHIDManagerUnscheduleFromRunLoop
+            ]
+            [ 0 IOHIDManagerClose drop ]
+            [ CFRelease ] tri
+            f
+        ] change-at
+        f +keyboard-state+ set-global
+        f +controller-states+ set-global
+    ] when ;
+
+M: iokit-game-input-backend get-controllers ( -- sequence )
+    +controller-states+ get keys [ controller boa ] map ;
+
+: ?join ( pre post sep -- string )
+    2over start [ swap 2nip ] [ [ 2array ] dip join ] if ;
+
+M: iokit-game-input-backend product-string ( controller -- string )
+    handle>>
+    [ kIOHIDManufacturerKey device-property ]
+    [ kIOHIDProductKey      device-property ] bi " " ?join ;
+M: iokit-game-input-backend product-id ( controller -- integer )
+    handle>>
+    [ kIOHIDVendorIDKey  device-property ]
+    [ kIOHIDProductIDKey device-property ] bi 2array ;
+M: iokit-game-input-backend instance-id ( controller -- integer )
+    handle>> kIOHIDLocationIDKey device-property ;
+
+M: iokit-game-input-backend read-controller ( controller -- controller-state )
+    handle>> +controller-states+ get at clone ;
+
+M: iokit-game-input-backend read-keyboard ( -- keyboard-state )
+    +keyboard-state+ get clone keyboard-state boa ;
+
+M: iokit-game-input-backend calibrate-controller ( controller -- )
+    drop ;
diff --git a/extra/game-input/backend/iokit/summary.txt b/extra/game-input/backend/iokit/summary.txt
new file mode 100644
index 0000000000..8fc5d827d0
--- /dev/null
+++ b/extra/game-input/backend/iokit/summary.txt
@@ -0,0 +1 @@
+IOKit HID Manager backend for game-input
diff --git a/extra/game-input/backend/iokit/tags.txt b/extra/game-input/backend/iokit/tags.txt
new file mode 100644
index 0000000000..704b10bc4c
--- /dev/null
+++ b/extra/game-input/backend/iokit/tags.txt
@@ -0,0 +1,5 @@
+unportable
+gamepads
+joysticks
+mac
+input
diff --git a/extra/game-input/backend/summary.txt b/extra/game-input/backend/summary.txt
new file mode 100644
index 0000000000..6a77f8e1e0
--- /dev/null
+++ b/extra/game-input/backend/summary.txt
@@ -0,0 +1 @@
+Platform-specific backends for game-input
diff --git a/extra/game-input/backend/tags.txt b/extra/game-input/backend/tags.txt
new file mode 100644
index 0000000000..48ad1f6141
--- /dev/null
+++ b/extra/game-input/backend/tags.txt
@@ -0,0 +1,3 @@
+gamepads
+joysticks
+input
diff --git a/extra/game-input/game-input-docs.factor b/extra/game-input/game-input-docs.factor
new file mode 100755
index 0000000000..5428ca66d0
--- /dev/null
+++ b/extra/game-input/game-input-docs.factor
@@ -0,0 +1,126 @@
+USING: help.markup help.syntax kernel ui.gestures quotations
+sequences strings math ;
+IN: game-input
+
+ARTICLE: "game-input" "Game controller input"
+"The " { $vocab-link "game-input" } " vocabulary provides cross-platform access to game controller devices such as joysticks and gamepads. It also provides an interface for polling raw keyboard input." $nl
+"The game input interface must be initialized before being used:"
+{ $subsection open-game-input }
+{ $subsection close-game-input }
+{ $subsection with-game-input }
+"Once the game input interface is open, connected controller devices can be enumerated:"
+{ $subsection get-controllers }
+{ $subsection find-controller-products }
+{ $subsection find-controller-instance }
+"These " { $link controller } " objects can be queried of their identity:"
+{ $subsection product-string }
+{ $subsection product-id }
+{ $subsection instance-id }
+"A hook is provided for invoking the system calibration tool:"
+{ $subsection calibrate-controller }
+"The current state of a controller or the keyboard can be read:"
+{ $subsection read-controller }
+{ $subsection read-keyboard }
+{ $subsection controller-state }
+{ $subsection keyboard-state } ;
+
+HELP: open-game-input
+{ $description "Initializes the game input interface. An exception will be thrown if the initialization fails. If the game input interface is already opened, nothing happens." } ;
+
+HELP: close-game-input
+{ $description "Closes the game input interface, releasing any allocated resources. Once this word is called, any remaining " { $link controller } " objects are invalid. If the game input interface is not opened, nothing happens." } ;
+
+HELP: game-input-opened?
+{ $values { "?" "a boolean" } }
+{ $description "Returns true if the game input interface is open, false otherwise." } ;
+
+HELP: with-game-input
+{ $values { "quot" quotation } }
+{ $description "Initializes the game input interface for the dynamic extent of " { $snippet "quotation" } "." } ;
+
+{ open-game-input close-game-input with-game-input game-input-opened? } related-words
+
+HELP: get-controllers
+{ $values { "sequence" "A " { $link sequence } " of " { $link controller } "s" } }
+{ $description "Returns a " { $link sequence } " of " { $link controller } " objects representing the currently connected game controllers. The order of the controller objects in the sequence is not significant or guaranteed to be stable between calls to " { $snippet "get-controllers" } "." } ;
+
+HELP: find-controller-products
+{ $values { "product-id" "A product ID as returned by " { $link product-id } } { "sequence" "A " { $link sequence } " of " { $link controller } "s" } }
+{ $description "Returns a " { $link sequence } " of " { $link controller } " objects representing the currently connected game controllers with the given " { $link product-id } ". The order of the controller objects in the sequence is not significant or guaranteed to be stable between calls to " { $snippet "find-controller-products" } "." } ;
+
+HELP: find-controller-instance
+{ $values { "product-id" "A product ID as returned by " { $link product-id } } { "instance-id" "An instance ID as returned by " { $link instance-id } "." } { "controller/f" "A " { $link controller } " object, or " { $link f } } }
+{ $description "Returns the " { $link controller } " instance identified by " { $snippet "product-id" } " and " { $snippet "instance-id" } ". If the identified device is not currently attached, " { $link f } " is returned." } ;
+
+HELP: controller
+{ $class-description "Objects of this class represent game controller devices such as joysticks and gamepads. They should be treated as opaque by client code." } ;
+
+HELP: product-string
+{ $values { "controller" controller } { "string" string } }
+{ $description "Returns a human-readable string describing the game controller device represented by " { $snippet "controller" } ". This string is not necessarily unique to the product or instance; to uniquely identify the device, see " { $link product-id } " and " { $link instance-id } "." } ;
+
+HELP: product-id
+{ $values { "controller" controller } { "id" "A unique identifier" } }
+{ $description "Returns an identifier uniquely representing the kind of game controller device represented by " { $snippet "controller" } ". This identifier will be the same for devices of the same make and manufacturer. The type of the identifier value is platform-specific, but equivalent " { $snippet "product-id" } "s are guaranteed to be testable with the " { $link = } " word. The identifier can be used to find devices of the same kind with the " { $link find-controller-products } " word." } ;
+
+HELP: instance-id
+{ $values { "controller" controller } { "id" "A unique identifier" } }
+{ $description "Returns an identifier uniquely representing the game controller device represented by " { $snippet "controller" } ". This identifier paired with the device's " { $link product-id } " provides a unique identifier for a particular device that persists between reboots (but not necessarily between computers). This unique identifier can be used to find the same device again with the " { $snippet "find-controller-instance" } " word. Depending on the platform, the instance-id may change if the device is plugged into a different port. The type of the identifier value is platform-specific, but equivalent " { $snippet "instance-id" } "s are guaranteed to be testable with the " { $link = } " word." } ;
+
+{ product-string product-id instance-id find-controller-products find-controller-instance } related-words
+
+HELP: calibrate-controller
+{ $values { "controller" controller } }
+{ $description "Invokes the operating system's calibration tool for " { $snippet "controller" } ". If the operating system does not have a calibration tool, this word does nothing." } ;
+
+HELP: read-controller
+{ $values { "controller" controller } { "controller-state" controller-state } }
+{ $description "Reads the current state of " { $snippet "controller" } ". See the documentation for the " { $link controller-state } " class for details of the returned value's format. If the device is no longer available, " { $link f } " is returned." }
+{ $warning "For efficiency, the implementation may reuse the returned " { $snippet "controller-state" } " object next time " { $snippet "read-controller" } " is called on the same controller. You should " { $link clone } " any values from the returned tuple you need to preserve." } ;
+
+{ controller-state controller read-controller } related-words
+
+HELP: read-keyboard
+{ $values { "keyboard-state" keyboard-state } }
+{ $description "Reads the current raw state of the keyboard. See the documentation for the " { $link keyboard-state } " class for details on the returned value's format." }
+{ $warning "For efficiency, the implementation may reuse the returned " { $snippet "keyboard-state" } " object next time " { $snippet "read-keyboard" } " is called. You should " { $link clone } " any values from the returned tuple you need to preserve."
+$nl "The keyboard state returned by this word is unprocessed by any keymaps, modifier keys, key repeat settings, or other operating environment postprocessing. Because of this, " { $snippet "read-keyboard" } " should not be used for text entry purposes. The Factor UI's standard gesture mechanism should be used in cases where the logical meaning of keypresses is needed; see " { $link "keyboard-gestures" } "." } ;
+
+HELP: controller-state
+{ $class-description "The " { $link read-controller } " word returns objects of this class. " { $snippet "controller-state" } " objects have the following slots:"
+{ $list
+    { { $snippet "x" } " contains the position of the device's X axis." }
+    { { $snippet "y" } " contains the position of the device's Y axis." }
+    { { $snippet "z" } " contains the position of the device's Z axis, if any." }
+    { { $snippet "rx" } " contains the rotational position of the device's X axis, if available." }
+    { { $snippet "ry" } " contains the rotational position of the device's Y axis, if available." }
+    { { $snippet "rz" } " contains the rotational position of the device's Z axis, if available." }
+    { { $snippet "slider" } " contains the position of the device's throttle slider, if any." }
+    { { $snippet "pov" } " contains the state of the device's POV hat, if any." }
+    { { $snippet "buttons" } " contains a sequence of values indicating the state of every button on the device." }
+}
+"The values are formatted as follows:"
+{ $list
+    { "For the axis slots (" { $snippet "x" } ", " { $snippet "y" } ", " { $snippet "z" } ", " { $snippet "rx" } ", " { $snippet "ry" } ", " { $snippet "rz" } "), a " { $link float } " value between -1.0 and 1.0 is returned." }
+    { "For the " { $snippet "slider" } " slot, a value between 0.0 and 1.0 is returned." }
+    { "For the " { $snippet "pov" } " slot, one of the following symbols is returned:" { $list
+        { { $link pov-neutral } }
+        { { $link pov-up } }
+        { { $link pov-up-right } }
+        { { $link pov-right } }
+        { { $link pov-down-right } }
+        { { $link pov-down } }
+        { { $link pov-down-left } }
+        { { $link pov-left } }
+        { { $link pov-up-left } }
+    } }
+    { "For each element of the " { $snippet "buttons" } " array, " { $link f } " indicates that the corresponding button is released. If the button is pressed, a value between 0.0 and 1.0 is returned indicating the pressure on the button (or simply 1.0 if the device's buttons are on/off only)." }
+    { "A value of " { $link f } " in any slot (besides the elements of " { $snippet "buttons" } ") indicates that the corresponding element is not present on the device." } } } ;
+
+HELP: keyboard-state
+{ $class-description "The " { $link read-keyboard } " word returns objects of this class. The " { $snippet "keys" } " slot of a " { $snippet "keyboard-state" } " object contains a " { $link sequence } " of 256 members representing the state of the keys on the keyboard. Each element is a boolean value indicating whether the corresponding key is pressed. The sequence is indexed by scancode as defined under usage page 7 of the USB HID standard. Named scancode constants are provided in the " { $vocab-link "game-input.scancodes" } " vocabulary." }
+{ $warning "The scancodes used to index " { $snippet "keyboard-state" } " objects correspond to physical key positions on the keyboard--they are unaffected by keymaps, modifier keys, or other operating environment postprocessing. The face value of the constants in " { $vocab-link "game-input.scancodes" } " do not necessarily correspond to what the user expects the key to type. Because of this, " { $link read-keyboard } " should not be used for text entry purposes. The Factor UI's standard gesture mechanism should be used in cases where the logical meaning of keypresses is needed; see " { $link "keyboard-gestures" } "." } ;
+
+{ keyboard-state read-keyboard } related-words
+
+ABOUT: "game-input"
diff --git a/extra/game-input/game-input.factor b/extra/game-input/game-input.factor
new file mode 100755
index 0000000000..18ec04df1f
--- /dev/null
+++ b/extra/game-input/game-input.factor
@@ -0,0 +1,80 @@
+USING: arrays accessors continuations kernel symbols
+combinators.lib sequences namespaces init vocabs ;
+IN: game-input
+
+SYMBOLS: game-input-backend game-input-opened ;
+
+HOOK: (open-game-input)  game-input-backend ( -- )
+HOOK: (close-game-input) game-input-backend ( -- )
+HOOK: (reset-game-input) game-input-backend ( -- )
+
+: game-input-opened? ( -- ? )
+    game-input-opened get ;
+
+<PRIVATE
+
+M: f (reset-game-input) ;
+
+: reset-game-input ( -- )
+    game-input-opened off
+    (reset-game-input) ;
+
+: load-game-input-backend ( -- )
+    game-input-backend get
+    [ "game-input.backend" load-vocab drop ] unless ;
+
+[ reset-game-input ] "game-input" add-init-hook
+
+PRIVATE>
+
+: open-game-input ( -- )
+    game-input-opened? [
+        (open-game-input) 
+        game-input-opened on
+    ] unless ;
+: close-game-input ( -- )
+    game-input-opened? [
+        (close-game-input) 
+        reset-game-input
+    ] when ;
+
+: with-game-input ( quot -- )
+    open-game-input [ close-game-input ] [ ] cleanup ;
+
+TUPLE: controller handle ;
+TUPLE: controller-state x y z rx ry rz slider pov buttons ;
+
+M: controller-state clone
+    call-next-method dup buttons>> clone >>buttons ;
+
+SYMBOLS:
+    pov-neutral
+    pov-up pov-up-right pov-right pov-down-right
+    pov-down pov-down-left pov-left pov-up-left ;
+
+HOOK: get-controllers game-input-backend ( -- sequence )
+
+HOOK: product-string game-input-backend ( controller -- string )
+HOOK: product-id game-input-backend ( controller -- id )
+HOOK: instance-id game-input-backend ( controller -- id )
+
+: find-controller-products ( product-id -- sequence )
+    get-controllers [ product-id = ] with filter ;
+: find-controller-instance ( product-id instance-id -- controller/f )
+    get-controllers [
+        [ product-id  = ]
+        [ instance-id = ] bi, bi* and
+    ] 2with find nip ;
+
+HOOK: read-controller game-input-backend ( controller -- controller-state )
+HOOK: calibrate-controller game-input-backend ( controller -- )
+
+TUPLE: keyboard-state keys ;
+
+M: keyboard-state clone
+    call-next-method dup keys>> clone >>keys ;
+
+HOOK: read-keyboard game-input-backend ( -- keyboard-state )
+
+load-game-input-backend
+
diff --git a/extra/game-input/scancodes/authors.txt b/extra/game-input/scancodes/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/game-input/scancodes/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/game-input/scancodes/scancodes.factor b/extra/game-input/scancodes/scancodes.factor
new file mode 100644
index 0000000000..7b0e39ee9b
--- /dev/null
+++ b/extra/game-input/scancodes/scancodes.factor
@@ -0,0 +1,175 @@
+IN: game-input.scancodes
+
+: key-undefined HEX: 0000 ; inline
+: key-error-roll-over HEX: 0001 ; inline
+: key-error-post-fail HEX: 0002 ; inline
+: key-error-undefined HEX: 0003 ; inline
+: key-a HEX: 0004 ; inline
+: key-b HEX: 0005 ; inline
+: key-c HEX: 0006 ; inline
+: key-d HEX: 0007 ; inline
+: key-e HEX: 0008 ; inline
+: key-f HEX: 0009 ; inline
+: key-g HEX: 000a ; inline
+: key-h HEX: 000b ; inline
+: key-i HEX: 000c ; inline
+: key-j HEX: 000d ; inline
+: key-k HEX: 000e ; inline
+: key-l HEX: 000f ; inline
+: key-m HEX: 0010 ; inline
+: key-n HEX: 0011 ; inline
+: key-o HEX: 0012 ; inline
+: key-p HEX: 0013 ; inline
+: key-q HEX: 0014 ; inline
+: key-r HEX: 0015 ; inline
+: key-s HEX: 0016 ; inline
+: key-t HEX: 0017 ; inline
+: key-u HEX: 0018 ; inline
+: key-v HEX: 0019 ; inline
+: key-w HEX: 001a ; inline
+: key-x HEX: 001b ; inline
+: key-y HEX: 001c ; inline
+: key-z HEX: 001d ; inline
+: key-1 HEX: 001e ; inline
+: key-2 HEX: 001f ; inline
+: key-3 HEX: 0020 ; inline
+: key-4 HEX: 0021 ; inline
+: key-5 HEX: 0022 ; inline
+: key-6 HEX: 0023 ; inline
+: key-7 HEX: 0024 ; inline
+: key-8 HEX: 0025 ; inline
+: key-9 HEX: 0026 ; inline
+: key-0 HEX: 0027 ; inline
+: key-return HEX: 0028 ; inline
+: key-escape HEX: 0029 ; inline
+: key-backspace HEX: 002a ; inline
+: key-tab HEX: 002b ; inline
+: key-space HEX: 002c ; inline
+: key-- HEX: 002d ; inline
+: key-= HEX: 002e ; inline
+: key-[ HEX: 002f ; inline
+: key-] HEX: 0030 ; inline
+: key-\ HEX: 0031 ; inline
+: key-#-non-us HEX: 0032 ; inline
+: key-; HEX: 0033 ; inline
+: key-' HEX: 0034 ; inline
+: key-` HEX: 0035 ; inline
+: key-, HEX: 0036 ; inline
+: key-. HEX: 0037 ; inline
+: key-/ HEX: 0038 ; inline
+: key-caps-lock HEX: 0039 ; inline
+: key-f1 HEX: 003a ; inline
+: key-f2 HEX: 003b ; inline
+: key-f3 HEX: 003c ; inline
+: key-f4 HEX: 003d ; inline
+: key-f5 HEX: 003e ; inline
+: key-f6 HEX: 003f ; inline
+: key-f7 HEX: 0040 ; inline
+: key-f8 HEX: 0041 ; inline
+: key-f9 HEX: 0042 ; inline
+: key-f10 HEX: 0043 ; inline
+: key-f11 HEX: 0044 ; inline
+: key-f12 HEX: 0045 ; inline
+: key-print-screen HEX: 0046 ; inline
+: key-scroll-lock HEX: 0047 ; inline
+: key-pause HEX: 0048 ; inline
+: key-insert HEX: 0049 ; inline
+: key-home HEX: 004a ; inline
+: key-page-up HEX: 004b ; inline
+: key-delete HEX: 004c ; inline
+: key-end HEX: 004d ; inline
+: key-page-down HEX: 004e ; inline
+: key-right-arrow HEX: 004f ; inline
+: key-left-arrow HEX: 0050 ; inline
+: key-down-arrow HEX: 0051 ; inline
+: key-up-arrow HEX: 0052 ; inline
+: key-keypad-numlock HEX: 0053 ; inline
+: key-keypad-/ HEX: 0054 ; inline
+: key-keypad-* HEX: 0055 ; inline
+: key-keypad-- HEX: 0056 ; inline
+: key-keypad-+ HEX: 0057 ; inline
+: key-keypad-enter HEX: 0058 ; inline
+: key-keypad-1 HEX: 0059 ; inline
+: key-keypad-2 HEX: 005a ; inline
+: key-keypad-3 HEX: 005b ; inline
+: key-keypad-4 HEX: 005c ; inline
+: key-keypad-5 HEX: 005d ; inline
+: key-keypad-6 HEX: 005e ; inline
+: key-keypad-7 HEX: 005f ; inline
+: key-keypad-8 HEX: 0060 ; inline
+: key-keypad-9 HEX: 0061 ; inline
+: key-keypad-0 HEX: 0062 ; inline
+: key-keypad-. HEX: 0063 ; inline
+: key-\-non-us HEX: 0064 ; inline
+: key-application HEX: 0065 ; inline
+: key-power HEX: 0066 ; inline
+: key-keypad-= HEX: 0067 ; inline
+: key-f13 HEX: 0068 ; inline
+: key-f14 HEX: 0069 ; inline
+: key-f15 HEX: 006a ; inline
+: key-f16 HEX: 006b ; inline
+: key-f17 HEX: 006c ; inline
+: key-f18 HEX: 006d ; inline
+: key-f19 HEX: 006e ; inline
+: key-f20 HEX: 006f ; inline
+: key-f21 HEX: 0070 ; inline
+: key-f22 HEX: 0071 ; inline
+: key-f23 HEX: 0072 ; inline
+: key-f24 HEX: 0073 ; inline
+: key-execute HEX: 0074 ; inline
+: key-help HEX: 0075 ; inline
+: key-menu HEX: 0076 ; inline
+: key-select HEX: 0077 ; inline
+: key-stop HEX: 0078 ; inline
+: key-again HEX: 0079 ; inline
+: key-undo HEX: 007a ; inline
+: key-cut HEX: 007b ; inline
+: key-copy HEX: 007c ; inline
+: key-paste HEX: 007d ; inline
+: key-find HEX: 007e ; inline
+: key-mute HEX: 007f ; inline
+: key-volume-up HEX: 0080 ; inline
+: key-volume-down HEX: 0081 ; inline
+: key-locking-caps-lock HEX: 0082 ; inline
+: key-locking-num-lock HEX: 0083 ; inline
+: key-locking-scroll-lock HEX: 0084 ; inline
+: key-keypad-, HEX: 0085 ; inline
+: key-keypad-=-as-400 HEX: 0086 ; inline
+: key-international-1 HEX: 0087 ; inline
+: key-international-2 HEX: 0088 ; inline
+: key-international-3 HEX: 0089 ; inline
+: key-international-4 HEX: 008a ; inline
+: key-international-5 HEX: 008b ; inline
+: key-international-6 HEX: 008c ; inline
+: key-international-7 HEX: 008d ; inline
+: key-international-8 HEX: 008e ; inline
+: key-international-9 HEX: 008f ; inline
+: key-lang-1 HEX: 0090 ; inline
+: key-lang-2 HEX: 0091 ; inline
+: key-lang-3 HEX: 0092 ; inline
+: key-lang-4 HEX: 0093 ; inline
+: key-lang-5 HEX: 0094 ; inline
+: key-lang-6 HEX: 0095 ; inline
+: key-lang-7 HEX: 0096 ; inline
+: key-lang-8 HEX: 0097 ; inline
+: key-lang-9 HEX: 0098 ; inline
+: key-alternate-erase HEX: 0099 ; inline
+: key-sysreq HEX: 009a ; inline
+: key-cancel HEX: 009b ; inline
+: key-clear HEX: 009c ; inline
+: key-prior HEX: 009d ; inline
+: key-enter HEX: 009e ; inline
+: key-separator HEX: 009f ; inline
+: key-out HEX: 00a0 ; inline
+: key-oper HEX: 00a1 ; inline
+: key-clear-again HEX: 00a2 ; inline
+: key-crsel-props HEX: 00a3 ; inline
+: key-exsel HEX: 00a4 ; inline
+: key-left-control HEX: 00e0 ; inline
+: key-left-shift HEX: 00e1 ; inline
+: key-left-alt HEX: 00e2 ; inline
+: key-left-gui HEX: 00e3 ; inline
+: key-right-control HEX: 00e4 ; inline
+: key-right-shift HEX: 00e5 ; inline
+: key-right-alt HEX: 00e6 ; inline
+: key-right-gui HEX: 00e7 ; inline
diff --git a/extra/game-input/scancodes/summary.txt b/extra/game-input/scancodes/summary.txt
new file mode 100644
index 0000000000..b1bdefeb71
--- /dev/null
+++ b/extra/game-input/scancodes/summary.txt
@@ -0,0 +1 @@
+Scan code constants for HID keyboards
diff --git a/extra/game-input/scancodes/tags.txt b/extra/game-input/scancodes/tags.txt
new file mode 100644
index 0000000000..6f4814c59c
--- /dev/null
+++ b/extra/game-input/scancodes/tags.txt
@@ -0,0 +1,2 @@
+keyboard
+input
diff --git a/extra/game-input/summary.txt b/extra/game-input/summary.txt
new file mode 100644
index 0000000000..ef479fee55
--- /dev/null
+++ b/extra/game-input/summary.txt
@@ -0,0 +1 @@
+Cross-platform joystick, gamepad, and raw keyboard input
diff --git a/extra/game-input/tags.txt b/extra/game-input/tags.txt
new file mode 100644
index 0000000000..ae360e1776
--- /dev/null
+++ b/extra/game-input/tags.txt
@@ -0,0 +1,3 @@
+joysticks
+gamepads
+input
diff --git a/extra/generic/lib/lib.factor b/extra/generic/lib/lib.factor
deleted file mode 100644
index 975a47e93c..0000000000
--- a/extra/generic/lib/lib.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-
-USING: kernel generic sequences ;
-
-IN: generic.lib
-
-: chain ( seq -- object ) unclip swap [ tuck set-delegate ] each ;
\ No newline at end of file
diff --git a/extra/geo-ip/geo-ip.factor b/extra/geo-ip/geo-ip.factor
index 5926dd596d..aee53f24f5 100644
--- a/extra/geo-ip/geo-ip.factor
+++ b/extra/geo-ip/geo-ip.factor
@@ -1,12 +1,14 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences io.files io.launcher io.encodings.ascii
-io.streams.string http.client sequences.lib combinators
+io.streams.string http.client generalizations combinators
 math.parser math.vectors math.intervals interval-maps memoize
-csv accessors assocs strings math splitting ;
+csv accessors assocs strings math splitting grouping arrays ;
 IN: geo-ip
 
-: db-path "IpToCountry.csv" temp-file ;
+: db-path ( -- path ) "IpToCountry.csv" temp-file ;
 
-: db-url "http://software77.net/cgi-bin/ip-country/geo-ip.pl?action=download" ;
+: db-url ( -- url ) "http://software77.net/cgi-bin/ip-country/geo-ip.pl?action=download" ;
 
 : download-db ( -- path )
     db-path dup exists? [
@@ -32,15 +34,20 @@ MEMO: ip-db ( -- seq )
     [ "#" head? not ] filter "\n" join <string-reader> csv
     [ parse-ip-entry ] map ;
 
+: filter-overlaps ( alist -- alist' )
+    2 clump
+    [ first2 [ first second ] [ first first ] bi* < ] filter
+    [ first ] map ;
+
 MEMO: ip-intervals ( -- interval-map )
-    ip-db [ [ [ from>> ] [ to>> ] bi [a,b] ] keep ] { } map>assoc
-    <interval-map> ;
+    ip-db [ [ [ from>> ] [ to>> ] bi 2array ] keep ] { } map>assoc
+    filter-overlaps <interval-map> ;
 
 GENERIC: lookup-ip ( ip -- ip-entry )
 
 M: string lookup-ip
     "." split [ string>number ] map
-    { HEX: 1000000 HEX: 10000 HEX: 100 1 } v.
+    { HEX: 1000000 HEX: 10000 HEX: 100 HEX: 1 } v.
     lookup-ip ;
 
 M: integer lookup-ip ip-intervals interval-at ;
diff --git a/extra/gesture-logger/gesture-logger.factor b/extra/gesture-logger/gesture-logger.factor
index b9de7c1b74..61dc8cf77e 100644
--- a/extra/gesture-logger/gesture-logger.factor
+++ b/extra/gesture-logger/gesture-logger.factor
@@ -1,25 +1,25 @@
-! Copyright (C) 2007 Slava Pestov.
+! Copyright (C) 2007, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io kernel prettyprint ui ui.gadgets ui.gadgets.panes
-ui.gadgets.scrollers ui.gadgets.theme ui.gestures colors ;
+USING: accessors io kernel prettyprint ui ui.gadgets
+ui.gadgets.panes ui.gadgets.scrollers ui.gadgets.theme
+ui.gestures colors ;
 IN: gesture-logger
 
-TUPLE: gesture-logger stream ;
+TUPLE: gesture-logger < gadget stream ;
 
 : <gesture-logger> ( stream -- gadget )
-    \ gesture-logger construct-gadget
-    [ set-gesture-logger-stream ] keep
-    { 100 100 } over set-rect-dim
-    dup black solid-interior ;
+    \ gesture-logger new-gadget
+    swap >>stream
+    { 100 100 } >>dim
+    black solid-interior ;
 
-M: gesture-logger handle-gesture*
-    drop
-    dup T{ button-down } = [ over request-focus ] when
-    swap gesture-logger-stream [ . ] with-output-stream*
+M: gesture-logger handle-gesture
+    over T{ button-down } = [ dup request-focus ] when
+    stream>> [ . ] with-output-stream*
     t ;
 
 M: gesture-logger user-input*
-    gesture-logger-stream [
+    stream>> [
         "User input: " write print
     ] with-output-stream* t ;
 
diff --git a/extra/golden-section/golden-section.factor b/extra/golden-section/golden-section.factor
index ef6f1ca4c2..8d1e6b49d6 100644
--- a/extra/golden-section/golden-section.factor
+++ b/extra/golden-section/golden-section.factor
@@ -1,64 +1,54 @@
-USING: kernel namespaces math math.constants math.functions arrays sequences
-    opengl opengl.gl opengl.glu ui ui.render ui.gadgets ui.gadgets.theme
-    ui.gadgets.slate colors ;
+
+USING: kernel namespaces math math.constants math.functions math.order
+       arrays sequences
+       opengl opengl.gl opengl.glu ui ui.render ui.gadgets ui.gadgets.theme
+       ui.gadgets.cartesian colors accessors combinators.cleave
+       processing.shapes ;
+
 IN: golden-section
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-! To run:
-! "golden-section" run
+! omega(i) = 2*pi*i*(phi-1)
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! x(i) = 0.5*i*cos(omega(i))
+! y(i) = 0.5*i*sin(omega(i))
 
-: disk ( quadric radius center -- )
-    glPushMatrix
-    gl-translate
-    dup 0 glScalef
-    0 1 10 10 gluDisk
-    glPopMatrix ;
+! radius(i) = 10*sin((pi*i)/720)
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : omega ( i -- omega ) phi 1- * 2 * pi * ;
 
-: x ( i -- x ) dup omega cos * 0.5 * ;
+: x ( i -- x ) [ omega cos ] [ 0.5 * ] bi * ;
+: y ( i -- y ) [ omega sin ] [ 0.5 * ] bi * ;
 
-: y ( i -- y ) dup omega sin * 0.5 * ;
-
-: center ( i -- point ) dup x swap y 2array ;
+: center ( i -- point ) { x y } 1arr ;
 
 : radius ( i -- radius ) pi * 720 / sin 10 * ;
 
-: color ( i -- color ) 360.0 / dup 0.25 1 4array ;
+: color ( i -- i ) dup 360.0 / dup 0.25 1 rgba boa >fill-color ;
 
-: rim ( quadric i -- )
-    black gl-color dup radius 1.5 * swap center disk ;
+: line-width ( i -- i ) dup radius 0.5 * 1 max glLineWidth ;
 
-: inner ( quadric i -- )
-    dup color gl-color dup radius swap center disk ;
+: draw ( i -- ) [ center ] [ radius 1.5 * 2 * ] bi circle ;
 
-: dot ( quadric i -- ) 2dup rim inner ;
+: dot ( i -- ) color line-width draw ;
 
-: golden-section ( quadric -- ) 720 [ dot ] with each ;
+: golden-section ( -- ) 720 [ dot ] each ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: with-quadric ( quot -- )
-    gluNewQuadric [ swap call ] keep gluDeleteQuadric ; inline
-
-: display ( -- )
-    GL_PROJECTION glMatrixMode
-    glLoadIdentity
-    -400 400 -400 400 -1 1 glOrtho
-    GL_MODELVIEW glMatrixMode
-    glLoadIdentity
-    [ golden-section ] with-quadric ;
+: <golden-section> ( -- gadget )
+  <cartesian>
+    {  600 600 }       >>pdim
+    { -400 400 }       x-range
+    { -400 400 }       y-range
+    [ golden-section ] >>action ;
 
 : golden-section-window ( -- )
-    [
-        [ display ] <slate>
-        { 600 600 } over set-slate-dim
-        "Golden Section" open-window
-    ] with-ui ;
+  [ <golden-section> "Golden Section" open-window ] with-ui ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 MAIN: golden-section-window
diff --git a/extra/graph-theory/authors.txt b/extra/graph-theory/authors.txt
new file mode 100644
index 0000000000..93667236de
--- /dev/null
+++ b/extra/graph-theory/authors.txt
@@ -0,0 +1 @@
+William Schlieper
diff --git a/extra/graph-theory/graph-theory-docs.factor b/extra/graph-theory/graph-theory-docs.factor
new file mode 100644
index 0000000000..39c116372d
--- /dev/null
+++ b/extra/graph-theory/graph-theory-docs.factor
@@ -0,0 +1,135 @@
+! See http://factorcode.org/license.txt for BSD licence.
+USING: help.markup help.syntax ;
+
+IN: graph-theory
+
+ARTICLE: "graph-protocol" "Graph protocol"
+"All graphs must be instances of the graph mixin:"
+{ $subsection graph }
+"All graphs must implement a method on the following generic word:"
+{ $subsection vertices }
+"At least one of the following two generic words must have a method; the " { $link graph } " mixin has default definitions which are mutually recursive:"
+{ $subsection adjlist }
+{ $subsection adj? }
+"All mutable graphs must implement a method on the following generic word:"
+{ $subsection add-blank-vertex }
+"All mutable undirected graphs must implement a method on the following generic word:"
+{ $subsection add-edge }
+"Mutable directed graphs should not implement the above word, as it has a default definition defined in terms of the following generic word:"
+{ $subsection add-edge* }
+"The following two words have default definitions, but are available as generics to allow implementations to optimize them:"
+{ $subsection num-vertices }
+{ $subsection num-edges } ;
+
+HELP: graph
+{ $class-description "A mixin class whose instances are graphs.  Custom implementations of the graph protocol should be declared as instances of this mixin for all graph functionality to work correctly:"
+    { $code "INSTANCE: hex-board graph" }
+} ;
+
+{ vertices num-vertices num-edges } related-words
+
+HELP: vertices
+{ $values { "graph" graph } { "seq" "The vertices" } }
+{ $description "Returns the vertices of the graph." } ;
+
+HELP: num-vertices
+{ $values { "graph" graph } { "n" "The number of vertices" } }
+{ $description "Returns the number of vertices in the graph." } ;
+
+HELP: num-edges
+{ $values { "graph" "A graph" } { "n" "The number of edges" } }
+{ $description "Returns the number of edges in the graph." } ;
+
+{ adjlist adj? } related-words
+
+HELP: adjlist
+{ $values
+    { "from" "The index of a vertex" }
+    { "graph" "The graph to be examined" }
+    { "seq" "The adjacency list" } }
+{ $description "Returns a sequence of vertices that this vertex links to" } ;
+
+HELP: adj?
+{ $values
+    { "from" "The index of a vertex" }
+    { "to" "The index of a vertex" }
+    { "graph" "A graph" }
+    { "?" "A boolean" } }
+{ $description "Returns a boolean describing whether there is an edge in the graph between from and to." } ;
+
+{ add-blank-vertex add-blank-vertices add-edge add-edge* } related-words
+
+HELP: add-blank-vertex
+{ $values
+    { "index" "A vertex index" }
+    { "graph" "A graph" } }
+{ $description "Adds a vertex to the graph." } ;
+
+HELP: add-blank-vertices
+{ $values
+    { "seq" "A sequence of vertex indices" }
+    { "graph" "A graph" } }
+{ $description "Adds vertices with indices in seq to the graph." } ;
+
+HELP: add-edge*
+{ $values
+    { "from" "The index of a vertex" }
+    { "to" "The index of another vertex" }
+    { "graph" "A graph" } }
+{ $description "Adds a one-way edge to the graph, between " { $snippet "from" } " and " { $snippet "to" } "."
+  $nl 
+  "If you want to add a two-way edge, use " { $link add-edge } " instead." } ;
+
+HELP: add-edge
+{ $values
+    { "u" "The index of a vertex" }
+    { "v" "The index of another vertex" }
+    { "graph" "A graph" } }
+{ $description "Adds a two-way edge to the graph, between " { $snippet "u" } " and " { $snippet "v" } "."
+  $nl
+  "If you want to add a one-way edge, use " { $link add-edge* } " instead." } ;
+
+{ depth-first full-depth-first dag? topological-sort } related-words
+
+HELP: depth-first
+{ $values
+    { "v" "The vertex to start the search at" }
+    { "graph" "The graph to search" }
+    { "pre" "A quotation of the form ( n -- )" }
+    { "post" "A quotation of the form ( n -- )" }
+    { "?list" "A list of booleans describing the vertices visited in the search" }
+    { "?" "A boolean describing whether or not the end-search error was thrown" } }
+{ $description "Performs a depth-first search on " { $emphasis "graph" } ".  The variable " { $emphasis "graph" } " can be accessed in both quotations."
+  $nl
+  "The " { $emphasis "pre" } " quotation is run before the recursive application of depth-first."
+  $nl
+  "The " { $emphasis "post" } " quotation is run after the recursive application of depth-first."
+  $nl
+  { $emphasis "?list" } " is a list of booleans, " { $link t } " for every vertex visted during the search, and " { $link f } " for every vertex not visited." } ;
+
+HELP: full-depth-first
+{ $values
+    { "graph" "The graph to search" }
+    { "pre" "A quotation of the form ( n -- )" }
+    { "post" "A quotation of the form ( n -- )" }
+    { "tail" "A quotation of the form ( -- )" }
+    { "?" "A boolean describing whether or not the end-search error was thrown" } }
+{ $description "Performs a depth-first search on " { $emphasis "graph" } ".  The variable " { $emphasis "graph" } "can be accessed in both quotations."
+  $nl
+  "The " { $emphasis "pre" } " quotation is run before the recursive application of depth-first."
+  $nl
+  "The " { $emphasis "post" } " quotation is run after the recursive application of depth-first."
+  $nl
+  "The " { $emphasis "tail" } " quotation is run after each time the depth-first search runs out of nodes.  On an undirected graph this will be each connected subgroup but on a directed graph it can be more complex." } ;
+
+HELP: dag?
+{ $values
+    { "graph" graph }
+    { "?" "A boolean indicating if the graph is acyclic" } }
+{ $description "Using a depth-first search, determines if the specified directed graph is a directed acyclic graph.  An undirected graph will produce a false result, as the algorithm does not eliminate cycles of length 2, which will include any edge that goes both ways." } ;
+
+HELP: topological-sort
+{ $values
+    { "graph" graph }
+    { "seq/f" "Either a sequence of values or f" } }
+{ $description "Using a depth-first search, topologically sorts the specified directed graph.  Returns f if the graph contains any cycles, and a topologically sorted sequence otherwise." } ;
diff --git a/extra/graph-theory/graph-theory.factor b/extra/graph-theory/graph-theory.factor
new file mode 100644
index 0000000000..322f17d2dd
--- /dev/null
+++ b/extra/graph-theory/graph-theory.factor
@@ -0,0 +1,92 @@
+! Copyright (C) 2008 William Schlieper <schlieper@unc.edu>
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: kernel combinators fry continuations sequences arrays vectors assocs hashtables heaps namespaces ;
+
+IN: graph-theory
+
+MIXIN: graph
+SYMBOL: visited?
+ERROR: end-search ;
+
+GENERIC: vertices ( graph -- seq ) flushable
+
+GENERIC: num-vertices ( graph -- n ) flushable
+
+GENERIC: num-edges ( graph -- n ) flushable
+
+GENERIC: adjlist ( from graph -- seq ) flushable
+
+GENERIC: adj? ( from to graph -- ? ) flushable
+
+GENERIC: add-blank-vertex ( index graph -- )
+
+GENERIC: delete-blank-vertex ( index graph -- )
+
+GENERIC: add-edge* ( from to graph -- )
+
+GENERIC: add-edge ( u v graph -- )
+
+GENERIC: delete-edge* ( from to graph -- )
+
+GENERIC: delete-edge ( u v graph -- )
+
+M: graph num-vertices
+    vertices length ;
+
+M: graph num-edges
+   [ vertices ] [ '[ , adjlist length ] map sum ] bi ;
+
+M: graph adjlist
+    [ vertices ] [ swapd '[ , swap , adj? ] filter ] bi ;
+
+M: graph adj?
+    swapd adjlist index >boolean ;
+
+M: graph add-edge
+    [ add-edge* ] [ swapd add-edge* ] 3bi ;
+
+M: graph delete-edge
+    [ delete-edge* ] [ swapd delete-edge* ] 3bi ;
+
+: add-blank-vertices ( seq graph -- )
+    '[ , add-blank-vertex ] each ;
+
+: delete-vertex ( index graph -- )
+    [ adjlist ]
+    [ '[ , , 3dup adj? [ delete-edge* ] [ 3drop ] if ] each ]
+    [ delete-blank-vertex ] 2tri ;
+
+<PRIVATE
+
+: search-wrap ( quot graph -- ? )
+    [ [ graph set ] [ vertices [ f 2array ] map >hashtable visited? set ] bi
+      [ t ] compose [ dup end-search? [ drop f ] [ rethrow ] if ] recover ] with-scope ; inline
+
+: (depth-first) ( v pre post -- )
+    { [ 2drop visited? get t -rot set-at ] 
+      [ drop call ]
+      [ [ graph get adjlist ] 2dip
+        '[ dup visited? get at [ drop ] [ , , (depth-first) ] if ] each ]
+      [ nip call ] } 3cleave ; inline
+
+PRIVATE>
+
+: depth-first ( v graph pre post -- ?list ? )
+    '[ , , (depth-first) visited? get ] swap search-wrap ; inline
+
+: full-depth-first ( graph pre post tail -- ? )
+    '[ [ visited? get [ nip not ] assoc-find ] 
+       [ drop , , (depth-first) @ ] 
+       [ 2drop ] while ] swap search-wrap ; inline
+
+: dag? ( graph -- ? )
+    V{ } clone swap [ 2dup swap push dupd
+                     '[ , swap graph get adj? not ] all? 
+                      [ end-search ] unless ]
+                    [ drop dup pop* ] [ ] full-depth-first nip ;
+
+: topological-sort ( graph -- seq/f )
+    dup dag?
+    [ V{ } swap [ drop ] [ prefix ] [ ] full-depth-first drop ]
+    [ drop f ] if ;
diff --git a/extra/graph-theory/reversals/reversals.factor b/extra/graph-theory/reversals/reversals.factor
new file mode 100644
index 0000000000..1ea1a3fbf5
--- /dev/null
+++ b/extra/graph-theory/reversals/reversals.factor
@@ -0,0 +1,22 @@
+! Copyright (C) 2008 William Schlieper <schlieper@unc.edu>
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: accessors kernel graph-theory ;
+
+IN: graph-theory.reversals
+
+TUPLE: reversal graph ;
+
+GENERIC: reverse-graph ( graph -- reversal )
+
+M: graph reverse-graph reversal boa ;
+
+M: reversal reverse-graph graph>> ;
+
+INSTANCE: reversal graph
+
+M: reversal vertices
+    graph>> vertices ;
+
+M: reversal adj?
+    swapd graph>> adj? ;
diff --git a/extra/graph-theory/sparse/sparse.factor b/extra/graph-theory/sparse/sparse.factor
new file mode 100644
index 0000000000..33c5505f0a
--- /dev/null
+++ b/extra/graph-theory/sparse/sparse.factor
@@ -0,0 +1,35 @@
+! Copyright (C) 2008 William Schlieper <schlieper@unc.edu>
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: accessors kernel sequences arrays vectors sets assocs hashtables graph-theory namespaces fry ;
+
+IN: graph-theory.sparse
+
+TUPLE: sparse-graph alist ; 
+
+: <sparse-graph> ( -- sparse-graph )
+    H{ } clone sparse-graph boa ;
+
+: >sparse-graph ( graph -- sparse-graph )
+    [ vertices ] keep
+    '[ dup , adjlist 2array ] map >hashtable sparse-graph boa ;
+
+INSTANCE: sparse-graph graph
+
+M: sparse-graph vertices
+    alist>> keys ;
+
+M: sparse-graph adjlist
+    alist>> at ;
+
+M: sparse-graph add-blank-vertex 
+    alist>> V{ } clone -rot set-at ;
+
+M: sparse-graph delete-blank-vertex
+    alist>> delete-at ;
+
+M: sparse-graph add-edge*
+    alist>> swapd at adjoin ;
+
+M: sparse-graph delete-edge*
+    alist>> swapd at delete ;
diff --git a/extra/graph-theory/summary.txt b/extra/graph-theory/summary.txt
new file mode 100644
index 0000000000..3e1d791ab1
--- /dev/null
+++ b/extra/graph-theory/summary.txt
@@ -0,0 +1 @@
+Graph-theoretic algorithms
diff --git a/extra/graph-theory/tags.txt b/extra/graph-theory/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/extra/graph-theory/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/graphics/bitmap/bitmap.factor b/extra/graphics/bitmap/bitmap.factor
index 611319e28b..82fdc334cb 100755
--- a/extra/graphics/bitmap/bitmap.factor
+++ b/extra/graphics/bitmap/bitmap.factor
@@ -1,10 +1,11 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 
-USING: alien arrays byte-arrays combinators inspector
+USING: alien arrays byte-arrays combinators summary
 io.backend graphics.viewer io io.binary io.files kernel libc
 math math.functions namespaces opengl opengl.gl prettyprint
-sequences strings ui ui.gadgets.panes io.encodings.binary ;
+sequences strings ui ui.gadgets.panes io.encodings.binary
+accessors ;
 IN: graphics.bitmap
 
 ! Currently can only handle 24bit bitmaps.
@@ -31,36 +32,35 @@ M: bitmap-magic summary
     drop "First two bytes of bitmap stream must be 'BM'" ;
 
 : parse-file-header ( bitmap -- )
-    2 read >string dup "BM" = [ bitmap-magic ] unless
-        over set-bitmap-magic
-    4 read le> over set-bitmap-size
-    4 read le> over set-bitmap-reserved
-    4 read le> swap set-bitmap-offset ;
+    2 read >string dup "BM" = [ bitmap-magic ] unless >>magic
+    4 read le> >>size
+    4 read le> >>reserved
+    4 read le> >>offset drop ;
 
 : parse-bitmap-header ( bitmap -- )
-    4 read le> over set-bitmap-header-length
-    4 read le> over set-bitmap-width
-    4 read le> over set-bitmap-height
-    2 read le> over set-bitmap-planes
-    2 read le> over set-bitmap-bit-count
-    4 read le> over set-bitmap-compression
-    4 read le> over set-bitmap-size-image
-    4 read le> over set-bitmap-x-pels
-    4 read le> over set-bitmap-y-pels
-    4 read le> over set-bitmap-color-used
-    4 read le> swap set-bitmap-color-important ;
+    4 read le> >>header-length
+    4 read le> >>width
+    4 read le> >>height
+    2 read le> >>planes
+    2 read le> >>bit-count
+    4 read le> >>compression
+    4 read le> >>size-image
+    4 read le> >>x-pels
+    4 read le> >>y-pels
+    4 read le> >>color-used
+    4 read le> >>color-important drop ;
 
 : rgb-quads-length ( bitmap -- n )
-    [ bitmap-offset 14 - ] keep bitmap-header-length - ;
+    [ offset>> 14 - ] keep header-length>> - ;
 
 : color-index-length ( bitmap -- n )
-    [ bitmap-width ] keep [ bitmap-planes * ] keep
-    [ bitmap-bit-count * 31 + 32 /i 4 * ] keep
-    bitmap-height abs * ;
+    [ width>> ] keep [ planes>> * ] keep
+    [ bit-count>> * 31 + 32 /i 4 * ] keep
+    height>> abs * ;
 
 : parse-bitmap ( bitmap -- )
-    dup rgb-quads-length read over set-bitmap-rgb-quads
-    dup color-index-length read swap set-bitmap-color-index ;
+    dup rgb-quads-length read >>rgb-quads
+    dup color-index-length read >>color-index drop ;
 
 : load-bitmap ( path -- bitmap )
     normalize-path binary [
@@ -69,50 +69,52 @@ M: bitmap-magic summary
         dup parse-bitmap-header
         dup parse-bitmap
     ] with-file-reader
-    dup bitmap-color-index over bitmap-bit-count
-    raw-bitmap>string >byte-array over set-bitmap-array ;
+    dup color-index>> over bit-count>>
+    raw-bitmap>string >byte-array >>array ;
 
 : save-bitmap ( bitmap path -- )
     binary [
         "BM" write
-        dup bitmap-array length 14 + 40 + 4 >le write
+        dup array>> length 14 + 40 + 4 >le write
         0 4 >le write
         54 4 >le write
 
         40 4 >le write
-        dup bitmap-width 4 >le write
-        dup bitmap-height 4 >le write
-        dup bitmap-planes 1 or 2 >le write
-        dup bitmap-bit-count 24 or 2 >le write
-        dup bitmap-compression 0 or 4 >le write
-        dup bitmap-size-image 4 >le write
-        dup bitmap-x-pels 4 >le write
-        dup bitmap-y-pels 4 >le write
-        dup bitmap-color-used 4 >le write
-        dup bitmap-color-important 4 >le write
-        dup bitmap-rgb-quads write
-        bitmap-color-index write
+        {
+            [ width>> 4 >le write ]
+            [ height>> 4 >le write ]
+            [ planes>> 1 or 2 >le write ]
+            [ bit-count>> 24 or 2 >le write ]
+            [ compression>> 0 or 4 >le write ]
+            [ size-image>> 4 >le write ]
+            [ x-pels>> 4 >le write ]
+            [ y-pels>> 4 >le write ]
+            [ color-used>> 4 >le write ]
+            [ color-important>> 4 >le write ]
+            [ rgb-quads>> write ]
+            [ color-index>> write ]
+        } cleave
     ] with-file-writer ;
 
 M: bitmap draw-image ( bitmap -- )
-    dup bitmap-height 0 < [
+    dup height>> 0 < [
         0 0 glRasterPos2i
         1.0 -1.0 glPixelZoom
     ] [
-        0 over bitmap-height abs glRasterPos2i
+        0 over height>> abs glRasterPos2i
         1.0 1.0 glPixelZoom
     ] if
-    [ bitmap-width ] keep
+    [ width>> ] keep
     [
-        [ bitmap-height abs ] keep
-        bitmap-bit-count {
+        [ height>> abs ] keep
+        bit-count>> {
             ! { 32 [ GL_BGRA GL_UNSIGNED_INT_8_8_8_8 ] } ! broken
             { 24 [ GL_BGR GL_UNSIGNED_BYTE ] }
         } case
-    ] keep bitmap-array glDrawPixels ;
+    ] keep array>> glDrawPixels ;
 
-M: bitmap width ( bitmap -- ) bitmap-width ;
-M: bitmap height ( bitmap -- ) bitmap-height ;
+M: bitmap width ( bitmap -- ) width>> ;
+M: bitmap height ( bitmap -- ) height>> ;
 
 : bitmap. ( path -- )
     load-bitmap <graphics-gadget> gadget. ;
diff --git a/extra/graphics/viewer/viewer.factor b/extra/graphics/viewer/viewer.factor
index 938dc61c09..0533ffaf5d 100644
--- a/extra/graphics/viewer/viewer.factor
+++ b/extra/graphics/viewer/viewer.factor
@@ -1,26 +1,21 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-
 USING: arrays kernel math math.functions namespaces opengl
-ui.gadgets ui.render ;
+ui.gadgets ui.render accessors ;
 IN: graphics.viewer
 
-TUPLE: graphics-gadget image ;
+TUPLE: graphics-gadget < gadget image ;
 
 GENERIC: draw-image ( image -- )
 GENERIC: width ( image -- w )
 GENERIC: height ( image -- h )
 
 M: graphics-gadget pref-dim*
-    graphics-gadget-image
-    [ width ] keep height abs 2array ;
+    image>> [ width ] keep height abs 2array ;
 
 M: graphics-gadget draw-gadget* ( gadget -- )
-    origin get [
-        graphics-gadget-image draw-image
-    ] with-translation ;
+    origin get [ image>> draw-image ] with-translation ;
 
 : <graphics-gadget> ( bitmap -- gadget )
-    \ graphics-gadget construct-gadget
-    [ set-graphics-gadget-image ] keep ;
-
+    \ graphics-gadget new-gadget
+        swap >>image ;
diff --git a/extra/hardware-info/linux/tags.txt b/extra/hardware-info/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/hardware-info/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/hardware-info/macosx/tags.txt b/extra/hardware-info/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/hardware-info/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/hardware-info/windows/nt/nt.factor b/extra/hardware-info/windows/nt/nt.factor
index 2599a33754..51af5c5949 100755
--- a/extra/hardware-info/windows/nt/nt.factor
+++ b/extra/hardware-info/windows/nt/nt.factor
@@ -35,7 +35,8 @@ M: winnt total-virtual-mem ( -- n )
 M: winnt available-virtual-mem ( -- n )
     memory-status MEMORYSTATUSEX-ullAvailVirtual ;
 
-: pull-win32-string [ utf16n alien>string ] keep free ;
+: pull-win32-string ( alien -- string )
+    [ utf16n alien>string ] keep free ;
 
 : computer-name ( -- string )
     MAX_COMPUTERNAME_LENGTH 1+ [ malloc ] keep
diff --git a/extra/hardware-info/windows/tags.txt b/extra/hardware-info/windows/tags.txt
index 8e1a55995e..02ec70f741 100644
--- a/extra/hardware-info/windows/tags.txt
+++ b/extra/hardware-info/windows/tags.txt
@@ -1 +1,2 @@
+unportable
 windows
diff --git a/extra/hello-world/deploy.factor b/extra/hello-world/deploy.factor
index 77421938a9..403cb4737e 100755
--- a/extra/hello-world/deploy.factor
+++ b/extra/hello-world/deploy.factor
@@ -1,15 +1,15 @@
 USING: tools.deploy.config ;
 H{
-    { deploy-word-defs? f }
-    { deploy-random? f }
-    { deploy-name "Hello world (console)" }
-    { deploy-threads? f }
-    { deploy-compiler? f }
-    { deploy-math? f }
-    { deploy-c-types? f }
-    { deploy-io 2 }
-    { deploy-reflection 1 }
-    { deploy-ui? f }
-    { "stop-after-last-window?" t }
     { deploy-word-props? f }
+    { deploy-random? f }
+    { deploy-compiler? f }
+    { deploy-c-types? f }
+    { deploy-ui? f }
+    { deploy-reflection 1 }
+    { deploy-threads? f }
+    { deploy-io 2 }
+    { deploy-word-defs? f }
+    { "stop-after-last-window?" t }
+    { deploy-name "Hello world (console)" }
+    { deploy-math? f }
 }
diff --git a/extra/hello-world/hello-world.factor b/extra/hello-world/hello-world.factor
index 709ecb1b58..03b3db9cfd 100644
--- a/extra/hello-world/hello-world.factor
+++ b/extra/hello-world/hello-world.factor
@@ -1,6 +1,6 @@
 USE: io
 IN: hello-world
 
-: hello "Hello world" print ;
+: hello ( -- ) "Hello world" print ;
 
 MAIN: hello
diff --git a/extra/help/definitions/definitions.factor b/extra/help/definitions/definitions.factor
deleted file mode 100755
index 4d942ae3a9..0000000000
--- a/extra/help/definitions/definitions.factor
+++ /dev/null
@@ -1,37 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: definitions help help.topics help.syntax
-prettyprint.backend prettyprint words kernel effects ;
-IN: help.definitions
-
-! Definition protocol implementation
-
-M: link definer drop \ ARTICLE: \ ; ;
-
-M: link where link-name article article-loc ;
-
-M: link set-where link-name article set-article-loc ;
-
-M: link forget* link-name remove-article ;
-
-M: link definition article-content ;
-
-M: link synopsis*
-    dup definer.
-    dup link-name pprint*
-    article-title pprint* ;
-
-M: word-link definer drop \ HELP: \ ; ;
-
-M: word-link where link-name "help-loc" word-prop ;
-
-M: word-link set-where link-name swap "help-loc" set-word-prop ;
-
-M: word-link definition link-name "help" word-prop ;
-
-M: word-link synopsis*
-    dup definer.
-    link-name dup pprint-word
-    stack-effect. ;
-
-M: word-link forget* link-name remove-word-help ;
diff --git a/extra/hexdump/hexdump.factor b/extra/hexdump/hexdump.factor
index 468a8cf253..f444f5a4f2 100644
--- a/extra/hexdump/hexdump.factor
+++ b/extra/hexdump/hexdump.factor
@@ -1,5 +1,5 @@
 USING: arrays io io.streams.string kernel math math.parser namespaces
-    prettyprint sequences sequences.lib splitting strings ascii ;
+prettyprint sequences sequences.lib splitting grouping strings ascii ;
 IN: hexdump
 
 <PRIVATE
diff --git a/extra/hints/hints.factor b/extra/hints/hints.factor
deleted file mode 100644
index 266e635867..0000000000
--- a/extra/hints/hints.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-IN: hints
-USING: parser words ;
-
-: HINTS: 
-    scan-word parse-definition "specializer" set-word-prop ;
-    parsing
diff --git a/extra/html/parser/analyzer/analyzer.factor b/extra/html/parser/analyzer/analyzer.factor
index 47d352b6b8..29ccc345d3 100755
--- a/extra/html/parser/analyzer/analyzer.factor
+++ b/extra/html/parser/analyzer/analyzer.factor
@@ -1,12 +1,12 @@
 USING: assocs html.parser kernel math sequences strings ascii
-arrays shuffle unicode.case namespaces splitting http
-sequences.lib accessors io combinators http.client urls ;
+arrays generalizations shuffle unicode.case namespaces splitting
+http sequences.lib accessors io combinators http.client urls ;
 IN: html.parser.analyzer
 
 TUPLE: link attributes clickable ;
 
 : scrape-html ( url -- vector )
-    http-get parse-html ;
+    http-get nip parse-html ;
 
 : (find-relative)
     [ >r + dup r> ?nth* [ 2drop f f ] unless ] [ 2drop f ] if ; inline
@@ -56,8 +56,7 @@ TUPLE: link attributes clickable ;
 : trim-text ( vector -- vector' )
     [
         dup name>> text = [
-            [ text>> [ blank? ] trim ] keep
-            [ set-tag-text ] keep
+            [ [ blank? ] trim ] change-text
         ] when
     ] map ;
 
@@ -140,6 +139,12 @@ TUPLE: link attributes clickable ;
 : href-contains? ( str tag -- ? )
     attributes>> "href" swap at* [ subseq? ] [ 2drop f ] if ;
 
+: find-hrefs ( vector -- vector' )
+    find-links
+    [ [
+        [ name>> "a" = ]
+        [ attributes>> "href" swap key? ] bi and ] filter
+    ] map sift [ [ attributes>> "href" swap at ] map ] map concat ;
 
 : find-forms ( vector -- vector' )
     "form" over find-opening-tags-by-name
@@ -167,8 +172,7 @@ TUPLE: link attributes clickable ;
     [
         {
             { [ dup name>> "form" = ]
-                [ "form action: " write attributes>> "action" swap at print
-            ] }
+                [ "form action: " write attributes>> "action" swap at print ] }
             { [ dup name>> "input" = ] [ input. ] }
             [ drop ]
         } cond
diff --git a/extra/html/parser/parser-tests.factor b/extra/html/parser/parser-tests.factor
index 0e98c1b998..9757f70a67 100644
--- a/extra/html/parser/parser-tests.factor
+++ b/extra/html/parser/parser-tests.factor
@@ -2,19 +2,19 @@ USING: html.parser kernel tools.test ;
 IN: html.parser.tests
 
 [
-    V{ T{ tag f "html" H{ } f f f } }
+    V{ T{ tag f "html" H{ } f f } }
 ] [ "<html>" parse-html ] unit-test
 
 [
-    V{ T{ tag f "html" H{ } f f t } }
+    V{ T{ tag f "html" H{ } f t } }
 ] [ "</html>" parse-html ] unit-test
 
 [
-    V{ T{ tag f "a" H{ { "href" "http://factorcode.org/" } } f f f } }
+    V{ T{ tag f "a" H{ { "href" "http://factorcode.org/" } } f f } }
 ] [ "<a href=\"http://factorcode.org/\">" parse-html ] unit-test
 
 [
-    V{ T{ tag f "a" H{ { "href" "http://factorcode.org/" } } f f f } }
+    V{ T{ tag f "a" H{ { "href" "http://factorcode.org/" } } f f } }
 ] [ "<a   href  =  \"http://factorcode.org/\"   >" parse-html ] unit-test
 
 [
@@ -26,7 +26,6 @@ V{
         H{ { "baz" "\"quux\"" } { "foo" "bar's" } }
         f
         f
-        f
     }
 }
 ] [ "<a   foo=\"bar's\" baz='\"quux\"'  >" parse-html ] unit-test
@@ -39,25 +38,25 @@ V{
             { "foo" "bar" }
             { "href" "http://factorcode.org/" }
             { "baz" "quux" }
-        } f f f }
+        } f f }
 }
 ] [ "<a   href  =    \"http://factorcode.org/\"    foo   =  bar baz='quux'a=pirsqd  >" parse-html ] unit-test
 
 [
 V{
-    T{ tag f "html" H{ } f f f }
-    T{ tag f "head" H{ } f f f }
-    T{ tag f "head" H{ } f f t }
-    T{ tag f "html" H{ } f f t }
+    T{ tag f "html" H{ } f f }
+    T{ tag f "head" H{ } f f }
+    T{ tag f "head" H{ } f t }
+    T{ tag f "html" H{ } f t }
 }
 ] [ "<html<head</head</html" parse-html ] unit-test
 
 [
 V{
-    T{ tag f "head" H{ } f f f }
-    T{ tag f "title" H{ } f f f }
-    T{ tag f text f "Spagna" f f }
-    T{ tag f "title" H{ } f f t }
-    T{ tag f "head" H{ } f f t }
+    T{ tag f "head" H{ } f f }
+    T{ tag f "title" H{ } f f }
+    T{ tag f text f "Spagna" f }
+    T{ tag f "title" H{ } f t }
+    T{ tag f "head" H{ } f t }
 }
 ] [ "<head<title>Spagna</title></head" parse-html ] unit-test
diff --git a/extra/html/parser/parser.factor b/extra/html/parser/parser.factor
index 1ae5768f98..ccd225e6e0 100644
--- a/extra/html/parser/parser.factor
+++ b/extra/html/parser/parser.factor
@@ -1,81 +1,78 @@
-USING: arrays html.parser.utils hashtables io kernel
+USING: accessors arrays html.parser.utils hashtables io kernel
 namespaces prettyprint quotations
-sequences splitting state-parser strings unicode.categories unicode.case ;
+sequences splitting state-parser strings unicode.categories unicode.case
+sequences.lib ;
 IN: html.parser
 
-TUPLE: tag name attributes text matched? closing? ;
+TUPLE: tag name attributes text closing? ;
 
-SYMBOL: text
-SYMBOL: dtd
-SYMBOL: comment
-SYMBOL: javascript
+SINGLETON: text
+SINGLETON: dtd
+SINGLETON: comment
 SYMBOL: tagstack
 
 : push-tag ( tag -- )
     tagstack get push ;
 
 : closing-tag? ( string -- ? )
-    dup empty? [
-        drop f
-    ] [
-        dup first CHAR: / =
-        swap peek CHAR: / = or
-    ] if ;
+    [ f ]
+    [ [ first ] [ peek ] bi [ CHAR: / = ] bi@ or ] if-empty ;
 
 : <tag> ( name attributes closing? -- tag )
-    { set-tag-name set-tag-attributes set-tag-closing? }
-    tag construct ;
+    tag new
+        swap >>closing?
+        swap >>attributes
+        swap >>name ;
 
-: make-tag ( str attribs -- tag )
+: make-tag ( string attribs -- tag )
     >r [ closing-tag? ] keep "/" trim1 r> rot <tag> ;
 
-: make-text-tag ( str -- tag )
-    T{ tag f text } clone [ set-tag-text ] keep ;
+: make-text-tag ( string -- tag )
+    tag new
+        text >>name
+        swap >>text ;
 
-: make-comment-tag ( str -- tag )
-    T{ tag f comment } clone [ set-tag-text ] keep ;
+: make-comment-tag ( string -- tag )
+    tag new
+        comment >>name
+        swap >>text ;
 
-: make-dtd-tag ( str -- tag )
-    T{ tag f dtd } clone [ set-tag-text ] keep ;
+: make-dtd-tag ( string -- tag )
+    tag new
+        dtd >>name
+        swap >>text ;
 
-: read-whitespace ( -- str )
+: read-whitespace ( -- string )
     [ get-char blank? not ] take-until ;
 
-: read-whitespace* ( -- )
-    read-whitespace drop ;
+: read-whitespace* ( -- ) read-whitespace drop ;
 
-: read-token ( -- str )
+: read-token ( -- string )
     read-whitespace*
     [ get-char blank? ] take-until ;
 
-: read-single-quote ( -- str )
+: read-single-quote ( -- string )
     [ get-char CHAR: ' = ] take-until ;
 
-: read-double-quote ( -- str )
+: read-double-quote ( -- string )
     [ get-char CHAR: " = ] take-until ;
 
-: read-quote ( -- str )
-    get-char next* CHAR: ' = [
-        read-single-quote
-    ] [
-        read-double-quote
-    ] if next* ;
+: read-quote ( -- string )
+    get-char next* CHAR: ' =
+    [ read-single-quote ] [ read-double-quote ] if next* ;
 
-: read-key ( -- str )
+: read-key ( -- string )
     read-whitespace*
-    [ get-char CHAR: = = get-char blank? or ] take-until ;
+    [ get-char [ CHAR: = = ] [ blank? ] bi or ] take-until ;
 
 : read-= ( -- )
     read-whitespace*
     [ get-char CHAR: = = ] take-until drop next* ;
 
-: read-value ( -- str )
+: read-value ( -- string )
     read-whitespace*
-    get-char quote? [
-        read-quote
-    ] [
-        read-token
-    ] if ;
+    get-char quote? [ read-quote ] [ read-token ] if
+    [ blank? ] trim ;
 
 : read-comment ( -- )
     "-->" take-string* make-comment-tag push-tag ;
@@ -95,22 +92,20 @@ SYMBOL: tagstack
     [ get-char CHAR: > = get-char CHAR: < = or ] take-until
     get-char CHAR: < = [ next* ] unless ;
 
-: read-< ( -- str )
+: read-< ( -- string )
     next* get-char CHAR: ! = [
         read-bang f
     ] [
         read-tag
     ] if ;
 
-: read-until-< ( -- str )
+: read-until-< ( -- string )
     [ get-char CHAR: < = ] take-until ;
 
 : parse-text ( -- )
-    read-until-< dup empty? [
-        drop
-    ] [
+    read-until-< [
         make-text-tag push-tag
-    ] if ;
+    ] unless-empty ;
 
 : (parse-attributes) ( -- )
     read-whitespace*
@@ -122,18 +117,16 @@ SYMBOL: tagstack
 : parse-attributes ( -- hashtable )
     [ (parse-attributes) ] { } make >hashtable ;
 
-: (parse-tag)
+: (parse-tag) ( string -- string' hashtable )
     [
         read-token >lower
         parse-attributes
     ] string-parse ;
 
 : parse-tag ( -- )
-    read-< dup empty? [
-        drop
-    ] [
+    read-< [
         (parse-tag) make-tag push-tag
-    ] if ;
+    ] unless-empty ;
 
 : (parse-html) ( -- )
     get-next [
@@ -143,13 +136,7 @@ SYMBOL: tagstack
     ] when ;
 
 : tag-parse ( quot -- vector )
-    [
-        V{ } clone tagstack set
-        string-parse
-    ] with-scope ;
+    V{ } clone tagstack [ string-parse ] with-variable ;
 
 : parse-html ( string -- vector )
-    [
-        (parse-html)
-        tagstack get
-    ] tag-parse ;
+    [ (parse-html) tagstack get ] tag-parse ;
diff --git a/extra/html/parser/printer/printer.factor b/extra/html/parser/printer/printer.factor
index 3078cf23a5..4419eec70e 100644
--- a/extra/html/parser/printer/printer.factor
+++ b/extra/html/parser/printer/printer.factor
@@ -1,108 +1,89 @@
-USING: assocs html.parser html.parser.utils combinators
+USING: accessors assocs html.parser html.parser.utils combinators
 continuations hashtables
 hashtables.private io kernel math
 namespaces prettyprint quotations sequences splitting
-state-parser strings ;
+strings ;
 IN: html.parser.printer
 
-SYMBOL: no-section
-SYMBOL: html
-SYMBOL: head
-SYMBOL: body
-TUPLE: state section ;
+SYMBOL: printer
 
-! TUPLE: text bold? underline? strikethrough? ;
+TUPLE: html-printer ;
+TUPLE: text-printer < html-printer ;
+TUPLE: src-printer < html-printer ;
+TUPLE: html-prettyprinter < html-printer ;
 
-TUPLE: text-printer ;
-TUPLE: ui-printer ;
-TUPLE: src-printer ;
-UNION: printer text-printer ui-printer src-printer ;
-HOOK: print-tag printer ( tag -- )
-HOOK: print-text-tag printer ( tag -- )
-HOOK: print-comment-tag printer ( tag -- )
-HOOK: print-dtd-tag printer ( tag -- )
-HOOK: print-opening-named-tag printer ( tag -- )
-HOOK: print-closing-named-tag printer ( tag -- )
+HOOK: print-text-tag html-printer ( tag -- )
+HOOK: print-comment-tag html-printer ( tag -- )
+HOOK: print-dtd-tag html-printer ( tag -- )
+HOOK: print-opening-tag html-printer ( tag -- )
+HOOK: print-closing-tag html-printer ( tag -- )
 
-: print-tags ( vector -- )
-    [ print-tag ] each ;
+ERROR: unknown-tag-error tag ;
 
-: html-text. ( vector -- )
-    [
-        T{ text-printer } printer set
-        print-tags
-    ] with-scope ;
-
-: html-src. ( vector -- )
-    [
-        T{ src-printer } printer set
-        print-tags
-    ] with-scope ;
-
-M: printer print-text-tag ( tag -- )
-    tag-text write ;
-
-M: printer print-comment-tag ( tag -- )
-    "<!--" write
-    tag-text write
-    "-->" write ;
-
-M: printer print-dtd-tag
-    "<!" write
-    tag-text write
-    ">" write ;
-
-M: printer print-opening-named-tag ( tag -- )
-    dup tag-name {
-        { "html" [ drop ] }
-        { "head" [ drop ] }
-        { "body" [ drop ] }
-        { "title" [ "Title: " write tag-text print ] }
-    } case ;
-
-M: printer print-closing-named-tag ( tag -- )
-    drop ;
-
-: print-attributes ( hashtable -- )
-    [
-        swap bl write "=" write ?quote write
-    ] assoc-each ;
-
-M: src-printer print-opening-named-tag ( tag -- )
-    "<" write
-    dup tag-name write
-    tag-attributes dup assoc-empty? [ drop ] [ print-attributes ] if
-    ">" write ;
-
-M: src-printer print-closing-named-tag ( tag -- )
-    "</" write
-    tag-name write
-    ">" write ;
-
-TUPLE: unknown-tag-error tag ;
-
-C: <unknown-tag-error> unknown-tag-error
-
-M: printer print-tag ( tag -- )
+: print-tag ( tag -- )
     {
-        { [ dup tag-name text = ] [ print-text-tag ] }
-        { [ dup tag-name comment = ] [ print-comment-tag ] }
-        { [ dup tag-name dtd = ] [ print-dtd-tag ] }
-        { [ dup tag-name string? over tag-closing? and ]
-            [ print-closing-named-tag ] }
-        { [ dup tag-name string? ]
-            [ print-opening-named-tag ] }
-        [ <unknown-tag-error> throw ]
+        { [ dup name>> text = ] [ print-text-tag ] }
+        { [ dup name>> comment = ] [ print-comment-tag ] }
+        { [ dup name>> dtd = ] [ print-dtd-tag ] }
+        { [ dup [ name>> string? ] [ closing?>> ] bi and ]
+            [ print-closing-tag ] }
+        { [ dup name>> string? ]
+            [ print-opening-tag ] }
+        [ unknown-tag-error ]
     } cond ;
 
-SYMBOL: tablestack
+: print-tags ( vector -- ) [ print-tag ] each ;
 
-: with-html-printer
+: html-text. ( vector -- )
+    T{ text-printer } html-printer [ print-tags ] with-variable ;
+
+: html-src. ( vector -- )
+    T{ src-printer } html-printer [ print-tags ] with-variable ;
+
+M: html-printer print-text-tag ( tag -- ) text>> write ;
+
+M: html-printer print-comment-tag ( tag -- )
+    "<!--" write text>> write "-->" write ;
+
+M: html-printer print-dtd-tag ( tag -- )
+    "<!" write text>> write ">" write ;
+
+: print-attributes ( hashtable -- )
+    [ [ bl write "=" write ] [ ?quote write ] bi* ] assoc-each ;
+
+M: src-printer print-opening-tag ( tag -- )
+    "<" write
+    [ name>> write ]
+    [ attributes>> dup assoc-empty? [ drop ] [ print-attributes ] if ] bi
+    ">" write ;
+
+M: src-printer print-closing-tag ( tag -- )
+    "</" write
+    name>> write
+    ">" write ;
+
+SYMBOL: tab-width
+SYMBOL: #indentations
+SYMBOL: tagstack
+
+: prettyprint-html ( vector -- )
     [
-        V{ } clone tablestack set
+        T{ html-prettyprinter } printer set
+        V{ } clone tagstack set
+        2 tab-width set
+        0 #indentations set
+        print-tags
     ] with-scope ;
 
-! { { 1 2 } { 3 4 } }
-! H{ { table-gap { 10 10 } } } [
-    ! [ [ [ [ . ] with-cell ] each ] with-row ] each
-! ] tabular-output
+: print-tabs ( -- )
+    tab-width get #indentations get * CHAR: \s <repetition> write ; 
+
+M: html-prettyprinter print-opening-tag ( tag -- )
+    print-tabs "<" write
+    name>> write
+    ">\n" write ;
+
+M: html-prettyprinter print-closing-tag ( tag -- )
+    "</" write
+    name>> write
+    ">" write ;
diff --git a/extra/html/parser/utils/utils.factor b/extra/html/parser/utils/utils.factor
index 5083b1cec2..04b3687f7d 100644
--- a/extra/html/parser/utils/utils.factor
+++ b/extra/html/parser/utils/utils.factor
@@ -1,11 +1,10 @@
 USING: assocs circular combinators continuations hashtables
 hashtables.private io kernel math
 namespaces prettyprint quotations sequences splitting
-state-parser strings ;
+state-parser strings sequences.lib ;
 IN: html.parser.utils
 
-: string-parse-end?
-    get-next not ;
+: string-parse-end? ( -- ? ) get-next not ;
 
 : take-string* ( match -- string )
     dup length <circular-string>
@@ -13,24 +12,21 @@ IN: html.parser.utils
     dup length rot length 1- - head next* ;
 
 : trim1 ( seq ch -- newseq )
-    [ ?head drop ] keep ?tail drop ;
+    [ ?head drop ] [ ?tail drop ] bi ;
 
 : single-quote ( str -- newstr )
-    >r "'" r> "'" 3append ;
+    "'" swap "'" 3append ;
 
 : double-quote ( str -- newstr )
-    >r "\"" r> "\"" 3append ;
+    "\"" swap "\"" 3append ;
 
 : quote ( str -- newstr )
     CHAR: ' over member?
     [ double-quote ] [ single-quote ] if ;
 
 : quoted? ( str -- ? )
-    dup length 1 > [
-        [ first ] keep peek [ = ] keep "'\"" member? and
-    ] [
-        drop f
-    ] if ;
+    [ f ]
+    [ [ first ] [ peek ] bi [ = ] keep "'\"" member? and ] if-empty ;
 
 : ?quote ( str -- newstr )
     dup quoted? [ quote ] unless ;
@@ -39,4 +35,3 @@ IN: html.parser.utils
     dup quoted? [ but-last-slice rest-slice >string ] when ;
 
 : quote? ( ch -- ? ) "'\"" member? ;
-
diff --git a/extra/html/templates/chloe/chloe.factor b/extra/html/templates/chloe/chloe.factor
deleted file mode 100644
index 9e0aa3fe1d..0000000000
--- a/extra/html/templates/chloe/chloe.factor
+++ /dev/null
@@ -1,150 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel sequences combinators kernel namespaces
-classes.tuple assocs splitting words arrays memoize
-io io.files io.encodings.utf8 io.streams.string
-unicode.case tuple-syntax mirrors fry math urls
-multiline xml xml.data xml.writer xml.utilities
-html.elements
-html.components
-html.templates
-html.templates.chloe.syntax ;
-IN: html.templates.chloe
-
-! Chloe is Ed's favorite web designer
-SYMBOL: tag-stack
-
-TUPLE: chloe path ;
-
-C: <chloe> chloe
-
-DEFER: process-template
-
-: chloe-attrs-only ( assoc -- assoc' )
-    [ drop name-url chloe-ns = ] assoc-filter ;
-
-: non-chloe-attrs-only ( assoc -- assoc' )
-    [ drop name-url chloe-ns = not ] assoc-filter ;
-
-: chloe-tag? ( tag -- ? )
-    {
-        { [ dup tag? not ] [ f ] }
-        { [ dup url>> chloe-ns = not ] [ f ] }
-        [ t ]
-    } cond nip ;
-
-: process-tag-children ( tag -- )
-    [ process-template ] each ;
-
-CHLOE: chloe process-tag-children ;
-
-: children>string ( tag -- string )
-    [ process-tag-children ] with-string-writer ;
-
-CHLOE: title children>string set-title ;
-
-CHLOE: write-title
-    drop
-    "head" tag-stack get member?
-    "title" tag-stack get member? not and
-    [ <title> write-title </title> ] [ write-title ] if ;
-
-CHLOE: style
-    dup "include" optional-attr dup [
-        swap children>string empty? [
-            "style tag cannot have both an include attribute and a body" throw
-        ] unless
-        utf8 file-contents
-    ] [
-        drop children>string
-    ] if add-style ;
-
-CHLOE: write-style
-    drop <style> write-style </style> ;
-
-CHLOE: even "index" value even? [ process-tag-children ] [ drop ] if ;
-
-CHLOE: odd "index" value odd? [ process-tag-children ] [ drop ] if ;
-
-: (bind-tag) ( tag quot -- )
-    [
-        [ "name" required-attr value ] keep
-        '[ , process-tag-children ]
-    ] dip call ; inline
-
-CHLOE: each [ with-each-value ] (bind-tag) ;
-
-CHLOE: bind-each [ with-each-object ] (bind-tag) ;
-
-CHLOE: bind [ with-values ] (bind-tag) ;
-
-: error-message-tag ( tag -- )
-    children>string render-error ;
-
-CHLOE: comment drop ;
-
-CHLOE: call-next-template drop call-next-template ;
-
-CHLOE-SINGLETON: label
-CHLOE-SINGLETON: link
-CHLOE-SINGLETON: farkup
-CHLOE-SINGLETON: inspector
-CHLOE-SINGLETON: comparison
-CHLOE-SINGLETON: html
-CHLOE-SINGLETON: hidden
-
-CHLOE-TUPLE: field
-CHLOE-TUPLE: textarea
-CHLOE-TUPLE: password
-CHLOE-TUPLE: choice
-CHLOE-TUPLE: checkbox
-CHLOE-TUPLE: code
-
-: process-chloe-tag ( tag -- )
-    dup name-tag dup tags get at
-    [ call ] [ "Unknown chloe tag: " prepend throw ] ?if ;
-
-: process-tag ( tag -- )
-    {
-        [ name-tag >lower tag-stack get push ]
-        [ write-start-tag ]
-        [ process-tag-children ]
-        [ write-end-tag ]
-        [ drop tag-stack get pop* ]
-    } cleave ;
-
-: expand-attrs ( tag -- tag )
-    dup [ tag? ] is? [
-        clone [
-            [ "@" ?head [ value object>string ] when ] assoc-map
-        ] change-attrs
-    ] when ;
-
-: process-template ( xml -- )
-    expand-attrs
-    {
-        { [ dup [ chloe-tag? ] is? ] [ process-chloe-tag ] }
-        { [ dup [ tag? ] is? ] [ process-tag ] }
-        { [ t ] [ write-item ] }
-    } cond ;
-
-: process-chloe ( xml -- )
-    [
-        V{ } clone tag-stack set
-
-        nested-template? get [
-            process-template
-        ] [
-            {
-                [ xml-prolog write-prolog ]
-                [ xml-before write-chunk  ]
-                [ process-template        ]
-                [ xml-after write-chunk   ]
-            } cleave
-        ] if
-    ] with-scope ;
-
-M: chloe call-template*
-    path>> ".xml" append utf8 <file-reader> read-xml process-chloe ;
-
-INSTANCE: chloe template
diff --git a/extra/http/client/client.factor b/extra/http/client/client.factor
deleted file mode 100755
index e6c8791e20..0000000000
--- a/extra/http/client/client.factor
+++ /dev/null
@@ -1,111 +0,0 @@
-! Copyright (C) 2005, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: assocs http kernel math math.parser namespaces sequences
-io io.sockets io.streams.string io.files io.timeouts strings
-splitting calendar continuations accessors vectors math.order
-io.encodings.8-bit io.encodings.binary io.streams.duplex
-fry debugger inspector ascii urls ;
-IN: http.client
-
-: max-redirects 10 ;
-
-ERROR: too-many-redirects ;
-
-M: too-many-redirects summary
-    drop
-    [ "Redirection limit of " % max-redirects # " exceeded" % ] "" make ;
-
-DEFER: http-request
-
-<PRIVATE
-
-SYMBOL: redirects
-
-: redirect-url ( request url -- request )
-    '[ , >url derive-url ensure-port ] change-url ;
-
-: do-redirect ( response data -- response data )
-    over code>> 300 399 between? [
-        drop
-        redirects inc
-        redirects get max-redirects < [
-            request get
-            swap "location" header redirect-url
-            "GET" >>method http-request
-        ] [
-            too-many-redirects
-        ] if
-    ] when ;
-
-PRIVATE>
-
-: read-chunk-size ( -- n )
-    read-crlf ";" split1 drop [ blank? ] right-trim
-    hex> [ "Bad chunk size" throw ] unless* ;
-
-: read-chunks ( -- )
-    read-chunk-size dup zero?
-    [ drop ] [ read % read-crlf "" assert= read-chunks ] if ;
-
-: read-response-body ( response -- response data )
-    dup "transfer-encoding" header "chunked" =
-    [ [ read-chunks ] "" make ] [ input-stream get contents ] if ;
-
-: http-request ( request -- response data )
-    dup request [
-        dup url>> url-addr latin1 [
-            1 minutes timeouts
-            write-request
-            read-response
-            read-response-body
-        ] with-client
-        do-redirect
-    ] with-variable ;
-
-: <get-request> ( url -- request )
-    <request>
-        "GET" >>method
-        swap >url ensure-port >>url ;
-
-: http-get* ( url -- response data )
-    <get-request> http-request ;
-
-: success? ( code -- ? ) 200 = ;
-
-ERROR: download-failed response body ;
-
-M: download-failed error.
-    "HTTP download failed:" print nl
-    [
-        response>>
-            write-response-code
-            write-response-message nl
-        drop
-    ]
-    [ body>> write ] bi ;
-
-: check-response ( response string -- string )
-    over code>> success? [ nip ] [ download-failed ] if ;
-
-: http-get ( url -- string )
-    http-get* check-response ;
-
-: download-name ( url -- name )
-    file-name "?" split1 drop "/" ?tail drop ;
-
-: download-to ( url file -- )
-    #! Downloads the contents of a URL to a file.
-    [ http-get ] dip latin1 [ write ] with-file-writer ;
-
-: download ( url -- )
-    dup download-name download-to ;
-
-: <post-request> ( content-type content url -- request )
-    <request>
-        "POST" >>method
-        swap >url ensure-port >>url
-        swap >>post-data
-        swap >>post-data-type ;
-
-: http-post ( content-type content url -- response data )
-    <post-request> http-request ;
diff --git a/extra/http/http-tests.factor b/extra/http/http-tests.factor
deleted file mode 100755
index 471d7e276b..0000000000
--- a/extra/http/http-tests.factor
+++ /dev/null
@@ -1,221 +0,0 @@
-USING: http tools.test multiline tuple-syntax
-io.streams.string kernel arrays splitting sequences
-assocs io.sockets db db.sqlite continuations urls ;
-IN: http.tests
-
-: lf>crlf "\n" split "\r\n" join ;
-
-STRING: read-request-test-1
-GET http://foo/bar HTTP/1.1
-Some-Header: 1
-Some-Header: 2
-Content-Length: 4
-
-blah
-;
-
-[
-    TUPLE{ request
-        url: TUPLE{ url protocol: "http" port: 80 path: "/bar" }
-        method: "GET"
-        version: "1.1"
-        header: H{ { "some-header" "1; 2" } { "content-length" "4" } }
-        post-data: "blah"
-        cookies: V{ }
-    }
-] [
-    read-request-test-1 lf>crlf [
-        read-request
-    ] with-string-reader
-] unit-test
-
-STRING: read-request-test-1'
-GET /bar HTTP/1.1
-content-length: 4
-some-header: 1; 2
-
-blah
-;
-
-read-request-test-1' 1array [
-    read-request-test-1 lf>crlf
-    [ read-request ] with-string-reader
-    [ write-request ] with-string-writer
-    ! normalize crlf
-    string-lines "\n" join
-] unit-test
-
-STRING: read-request-test-2
-HEAD  http://foo/bar   HTTP/1.1
-Host: www.sex.com
-
-;
-
-[
-    TUPLE{ request
-        url: TUPLE{ url protocol: "http" port: 80 host: "www.sex.com" path: "/bar" }
-        method: "HEAD"
-        version: "1.1"
-        header: H{ { "host" "www.sex.com" } }
-        cookies: V{ }
-    }
-] [
-    read-request-test-2 lf>crlf [
-        read-request
-    ] with-string-reader
-] unit-test
-
-STRING: read-request-test-3
-GET nested HTTP/1.0
-
-;
-
-[ read-request-test-3 [ read-request ] with-string-reader ]
-[ "Bad request: URL" = ]
-must-fail-with
-
-STRING: read-response-test-1
-HTTP/1.1 404 not found
-Content-Type: text/html; charset=UTF8
-
-blah
-;
-
-[
-    TUPLE{ response
-        version: "1.1"
-        code: 404
-        message: "not found"
-        header: H{ { "content-type" "text/html; charset=UTF8" } }
-        cookies: V{ }
-        content-type: "text/html"
-        content-charset: "UTF8"
-    }
-] [
-    read-response-test-1 lf>crlf
-    [ read-response ] with-string-reader
-] unit-test
-
-
-STRING: read-response-test-1'
-HTTP/1.1 404 not found
-content-type: text/html; charset=UTF8
-
-
-;
-
-read-response-test-1' 1array [
-    read-response-test-1 lf>crlf
-    [ read-response ] with-string-reader
-    [ write-response ] with-string-writer
-    ! normalize crlf
-    string-lines "\n" join
-] unit-test
-
-[ t ] [
-    "rmid=732423sdfs73242; path=/; domain=.example.net; expires=Fri, 31-Dec-2010 23:59:59 GMT"
-    dup parse-cookies unparse-cookies =
-] unit-test
-
-! Live-fire exercise
-USING: http.server http.server.static furnace.sessions
-furnace.actions furnace.auth.login furnace.db http.client
-io.server io.files io io.encodings.ascii
-accessors namespaces threads
-http.server.responses http.server.redirection
-http.server.dispatchers ;
-
-: add-quit-action
-    <action>
-        [ stop-server "Goodbye" "text/html" <content> ] >>display
-    "quit" add-responder ;
-
-: test-db "test.db" temp-file sqlite-db ;
-
-[ test-db drop delete-file ] ignore-errors
-
-test-db [
-    init-sessions-table
-] with-db
-
-[ ] [
-    [
-        <dispatcher>
-            add-quit-action
-            <dispatcher>
-                "resource:extra/http/test" <static> >>default
-            "nested" add-responder
-            <action>
-                [ URL" redirect-loop" <temporary-redirect> ] >>display
-            "redirect-loop" add-responder
-        main-responder set
-
-        [ 1237 httpd ] "HTTPD test" spawn drop
-    ] with-scope
-] unit-test
-
-[ ] [ 100 sleep ] unit-test
-
-[ t ] [
-    "resource:extra/http/test/foo.html" ascii file-contents
-    "http://localhost:1237/nested/foo.html" http-get =
-] unit-test
-
-[ "http://localhost:1237/redirect-loop" http-get ]
-[ too-many-redirects? ] must-fail-with
-
-[ "Goodbye" ] [
-    "http://localhost:1237/quit" http-get
-] unit-test
-
-! Dispatcher bugs
-[ ] [
-    [
-        <dispatcher>
-            <action> f <protected>
-            <login>
-            <sessions>
-            "" add-responder
-            add-quit-action
-            <dispatcher>
-                <action> "a" add-main-responder
-            "d" add-responder
-        test-db <db-persistence>
-        main-responder set
-
-        [ 1237 httpd ] "HTTPD test" spawn drop
-    ] with-scope
-] unit-test
-
-[ ] [ 100 sleep ] unit-test
-
-: 404? [ download-failed? ] [ response>> code>> 404 = ] bi and ;
-
-! This should give a 404 not an infinite redirect loop
-[ "http://localhost:1237/d/blah" http-get ] [ 404? ] must-fail-with
-
-! This should give a 404 not an infinite redirect loop
-[ "http://localhost:1237/blah/" http-get ] [ 404? ] must-fail-with
-
-[ "Goodbye" ] [ "http://localhost:1237/quit" http-get ] unit-test
-
-[ ] [
-    [
-        <dispatcher>
-            <action> [ [ "Hi" write ] "text/plain" <content> ] >>display
-            <login>
-            <sessions>
-            "" add-responder
-            add-quit-action
-        test-db <db-persistence>
-        main-responder set
-
-        [ 1237 httpd ] "HTTPD test" spawn drop
-    ] with-scope
-] unit-test
-
-[ ] [ 100 sleep ] unit-test
-
-[ "Hi" ] [ "http://localhost:1237/" http-get ] unit-test
-
-[ "Goodbye" ] [ "http://localhost:1237/quit" http-get ] unit-test
diff --git a/extra/http/http.factor b/extra/http/http.factor
deleted file mode 100755
index e8f7189f75..0000000000
--- a/extra/http/http.factor
+++ /dev/null
@@ -1,386 +0,0 @@
-! Copyright (C) 2003, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel combinators math namespaces
-
-assocs sequences splitting sorting sets debugger
-strings vectors hashtables quotations arrays byte-arrays
-math.parser calendar calendar.format
-
-io io.server io.sockets.secure
-
-unicode.case unicode.categories qualified
-
-urls html.templates ;
-
-EXCLUDE: fry => , ;
-
-IN: http
-
-: crlf "\r\n" write ;
-
-: add-header ( value key assoc -- )
-    [ at dup [ "; " rot 3append ] [ drop ] if ] 2keep set-at ;
-
-: header-line ( line -- )
-    dup first blank? [
-        [ blank? ] left-trim
-        "last-header" get
-        "header" get
-        add-header
-    ] [
-        ": " split1 dup [
-            swap >lower dup "last-header" set
-            "header" get add-header
-        ] [
-            2drop
-        ] if
-    ] if ;
-
-: read-lf ( -- string )
-    "\n" read-until CHAR: \n assert= ;
-
-: read-crlf ( -- string )
-    "\r" read-until
-    [ CHAR: \r assert= read1 CHAR: \n assert= ] when* ;
-
-: read-header-line ( -- )
-    read-crlf dup
-    empty? [ drop ] [ header-line read-header-line ] if ;
-
-: read-header ( -- assoc )
-    H{ } clone [
-        "header" [ read-header-line ] with-variable
-    ] keep ;
-
-: header-value>string ( value -- string )
-    {
-        { [ dup number? ] [ number>string ] }
-        { [ dup timestamp? ] [ timestamp>http-string ] }
-        { [ dup url? ] [ url>string ] }
-        { [ dup string? ] [ ] }
-        { [ dup sequence? ] [ [ header-value>string ] map "; " join ] }
-    } cond ;
-
-: check-header-string ( str -- str )
-    #! http://en.wikipedia.org/wiki/HTTP_Header_Injection
-    dup "\r\n" intersect empty?
-    [ "Header injection attack" throw ] unless ;
-
-: write-header ( assoc -- )
-    >alist sort-keys [
-        swap url-encode write ": " write
-        header-value>string check-header-string write crlf
-    ] assoc-each crlf ;
-
-TUPLE: cookie name value path domain expires max-age http-only ;
-
-: <cookie> ( value name -- cookie )
-    cookie new
-        swap >>name
-        swap >>value ;
-
-: parse-cookies ( string -- seq )
-    [
-        f swap
-
-        ";" split [
-            [ blank? ] trim "=" split1 swap >lower {
-                { "expires" [ cookie-string>timestamp >>expires ] }
-                { "max-age" [ string>number seconds >>max-age ] }
-                { "domain" [ >>domain ] }
-                { "path" [ >>path ] }
-                { "httponly" [ drop t >>http-only ] }
-                { "" [ drop ] }
-                [ <cookie> dup , nip ]
-            } case
-        ] each
-
-        drop
-    ] { } make ;
-
-: (unparse-cookie) ( key value -- )
-    {
-        { f [ drop ] }
-        { t [ , ] }
-        [
-            {
-                { [ dup timestamp? ] [ timestamp>cookie-string ] }
-                { [ dup duration? ] [ dt>seconds number>string ] }
-                [ ]
-            } cond
-            "=" swap 3append ,
-        ]
-    } case ;
-
-: unparse-cookie ( cookie -- strings )
-    [
-        dup name>> >lower over value>> (unparse-cookie)
-        "path" over path>> (unparse-cookie)
-        "domain" over domain>> (unparse-cookie)
-        "expires" over expires>> (unparse-cookie)
-        "max-age" over max-age>> (unparse-cookie)
-        "httponly" over http-only>> (unparse-cookie)
-        drop
-    ] { } make ;
-
-: unparse-cookies ( cookies -- string )
-    [ unparse-cookie ] map concat "; " join ;
-
-TUPLE: request
-method
-url
-version
-header
-post-data
-post-data-type
-cookies ;
-
-: set-header ( request/response value key -- request/response )
-    pick header>> set-at ;
-
-: <request>
-    request new
-        "1.1" >>version
-        <url>
-            "http" >>protocol
-            H{ } clone >>query
-        >>url
-        H{ } clone >>header
-        V{ } clone >>cookies
-        "close" "connection" set-header
-        "Factor http.client vocabulary" "user-agent" set-header ;
-
-: read-method ( request -- request )
-    " " read-until [ "Bad request: method" throw ] unless
-    >>method ;
-
-: check-absolute ( url -- url )
-    dup path>> "/" head? [ "Bad request: URL" throw ] unless ; inline
-
-: read-url ( request -- request )
-    " " read-until [
-        dup empty? [ drop read-url ] [ >url check-absolute >>url ] if
-    ] [ "Bad request: URL" throw ] if ;
-
-: parse-version ( string -- version )
-    "HTTP/" ?head [ "Bad request: version" throw ] unless
-    dup { "1.0" "1.1" } member? [ "Bad request: version" throw ] unless ;
-
-: read-request-version ( request -- request )
-    read-crlf [ CHAR: \s = ] left-trim
-    parse-version
-    >>version ;
-
-: read-request-header ( request -- request )
-    read-header >>header ;
-
-: header ( request/response key -- value )
-    swap header>> at ;
-
-SYMBOL: max-post-request
-
-1024 256 * max-post-request set-global
-
-: content-length ( header -- n )
-    "content-length" swap at string>number dup [
-        dup max-post-request get > [
-            "content-length > max-post-request" throw
-        ] when
-    ] when ;
-
-: read-post-data ( request -- request )
-    dup header>> content-length [ read >>post-data ] when* ;
-
-: extract-host ( request -- request )
-    [ ] [ url>> ] [ "host" header parse-host ] tri
-    [ >>host ] [ >>port ] bi*
-    ensure-port
-    drop ;
-
-: extract-post-data-type ( request -- request )
-    dup "content-type" header >>post-data-type ;
-
-: parse-post-data ( request -- request )
-    dup post-data-type>> "application/x-www-form-urlencoded" =
-    [ dup post-data>> query>assoc >>post-data ] when ;
-
-: extract-cookies ( request -- request )
-    dup "cookie" header [ parse-cookies >>cookies ] when* ;
-
-: parse-content-type-attributes ( string -- attributes )
-    " " split harvest [ "=" split1 [ >lower ] dip ] { } map>assoc ;
-
-: parse-content-type ( content-type -- type encoding )
-    ";" split1 parse-content-type-attributes "charset" swap at ;
-
-: detect-protocol ( request -- request )
-    dup url>> remote-address get secure? "https" "http" ? >>protocol drop ;
-
-: read-request ( -- request )
-    <request>
-    read-method
-    read-url
-    read-request-version
-    read-request-header
-    read-post-data
-    detect-protocol
-    extract-host
-    extract-post-data-type
-    parse-post-data
-    extract-cookies ;
-
-: write-method ( request -- request )
-    dup method>> write bl ;
-
-: write-request-url ( request -- request )
-    dup url>> relative-url url>string write bl ;
-
-: write-version ( request -- request )
-    "HTTP/" write dup request-version write crlf ;
-
-: unparse-post-data ( request -- request )
-    dup post-data>> dup sequence? [ drop ] [
-        assoc>query >>post-data
-        "application/x-www-form-urlencoded" >>post-data-type
-    ] if ;
-
-: url-host ( url -- string )
-    [ host>> ] [ port>> ] bi dup "http" protocol-port =
-    [ drop ] [ ":" swap number>string 3append ] if ;
-
-: write-request-header ( request -- request )
-    dup header>> >hashtable
-    over url>> host>> [ over url>> url-host "host" pick set-at ] when
-    over post-data>> [ length "content-length" pick set-at ] when*
-    over post-data-type>> [ "content-type" pick set-at ] when*
-    over cookies>> f like [ unparse-cookies "cookie" pick set-at ] when*
-    write-header ;
-
-: write-post-data ( request -- request )
-    dup post-data>> [ write ] when* ;
-
-: write-request ( request -- )
-    unparse-post-data
-    write-method
-    write-request-url
-    write-version
-    write-request-header
-    write-post-data
-    flush
-    drop ;
-
-GENERIC: write-response ( response -- )
-
-GENERIC: write-full-response ( request response -- )
-
-TUPLE: response
-version
-code
-message
-header
-cookies
-content-type
-content-charset
-body ;
-
-: <response>
-    response new
-        "1.1" >>version
-        H{ } clone >>header
-        "close" "connection" set-header
-        now timestamp>http-string "date" set-header
-        V{ } clone >>cookies ;
-
-: read-response-version
-    " \t" read-until
-    [ "Bad response: version" throw ] unless
-    parse-version
-    >>version ;
-
-: read-response-code
-    " \t" read-until [ "Bad response: code" throw ] unless
-    string>number [ "Bad response: code" throw ] unless*
-    >>code ;
-
-: read-response-message
-    read-crlf >>message ;
-
-: read-response-header
-    read-header >>header
-    extract-cookies
-    dup "content-type" header [
-        parse-content-type [ >>content-type ] [ >>content-charset ] bi*
-    ] when* ;
-
-: read-response ( -- response )
-    <response>
-    read-response-version
-    read-response-code
-    read-response-message
-    read-response-header ;
-
-: write-response-version ( response -- response )
-    "HTTP/" write
-    dup version>> write bl ;
-
-: write-response-code ( response -- response )
-    dup code>> number>string write bl ;
-
-: write-response-message ( response -- response )
-    dup message>> write crlf ;
-
-: unparse-content-type ( request -- content-type )
-    [ content-type>> "application/octet-stream" or ]
-    [ content-charset>> ] bi
-    [ "; charset=" swap 3append ] when* ;
-
-: write-response-header ( response -- response )
-    dup header>> clone
-    over cookies>> f like [ unparse-cookies "set-cookie" pick set-at ] when*
-    over unparse-content-type "content-type" pick set-at
-    write-header ;
-
-: write-response-body ( response -- response )
-    dup body>> call-template ;
-
-M: response write-response ( respose -- )
-    write-response-version
-    write-response-code
-    write-response-message
-    write-response-header
-    flush
-    drop ;
-
-M: response write-full-response ( request response -- )
-    dup write-response
-    swap method>> "HEAD" = [ write-response-body ] unless ;
-
-: get-cookie ( request/response name -- cookie/f )
-    [ cookies>> ] dip '[ , _ name>> = ] find nip ;
-
-: delete-cookie ( request/response name -- )
-    over cookies>> [ get-cookie ] dip delete ;
-
-: put-cookie ( request/response cookie -- request/response )
-    [ name>> dupd get-cookie [ dupd delete-cookie ] when* ] keep
-    over cookies>> push ;
-
-TUPLE: raw-response
-version
-code
-message
-body ;
-
-: <raw-response> ( -- response )
-    raw-response new
-        "1.1" >>version ;
-
-M: raw-response write-response ( respose -- )
-    write-response-version
-    write-response-code
-    write-response-message
-    write-response-body
-    drop ;
-
-M: raw-response write-full-response ( response -- )
-    write-response nip ;
diff --git a/extra/http/server/server.factor b/extra/http/server/server.factor
deleted file mode 100755
index 02424ef974..0000000000
--- a/extra/http/server/server.factor
+++ /dev/null
@@ -1,93 +0,0 @@
-! Copyright (C) 2003, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel accessors sequences arrays namespaces splitting
-vocabs.loader http http.server.responses logging calendar
-destructors html.elements html.streams io.server
-io.encodings.8-bit io.timeouts io assocs debugger continuations
-fry tools.vocabs math ;
-IN: http.server
-
-SYMBOL: responder-nesting
-
-SYMBOL: main-responder
-
-SYMBOL: development-mode
-
-! path is a sequence of path component strings
-GENERIC: call-responder* ( path responder -- response )
-
-TUPLE: trivial-responder response ;
-
-C: <trivial-responder> trivial-responder
-
-M: trivial-responder call-responder* nip response>> clone ;
-
-main-responder global [ <404> <trivial-responder> get-global or ] change-at
-
-: invert-slice ( slice -- slice' )
-    dup slice? [ [ seq>> ] [ from>> ] bi head-slice ] [ drop { } ] if ;
-
-: add-responder-nesting ( path responder -- )
-    [ invert-slice ] dip 2array responder-nesting get push ;
-
-: call-responder ( path responder -- response )
-    [ add-responder-nesting ] [ call-responder* ] 2bi ;
-
-: http-error. ( error -- )
-    "Internal server error" [
-        [ print-error nl :c ] with-html-stream
-    ] simple-page ;
-
-: <500> ( error -- response )
-    500 "Internal server error" <trivial-response>
-    development-mode get [ swap '[ , http-error. ] >>body ] [ drop ] if ;
-
-: do-response ( response -- )
-    dup write-response
-    request get method>> "HEAD" =
-    [ drop ] [ '[ , write-response-body ] [ http-error. ] recover ] if ;
-
-LOG: httpd-hit NOTICE
-
-: log-request ( request -- )
-    [ method>> ] [ url>> [ host>> ] [ path>> ] bi ] bi 3array httpd-hit ;
-
-: split-path ( string -- path )
-    "/" split harvest ;
-
-: init-request ( request -- )
-    request set
-    V{ } clone responder-nesting set ;
-
-: dispatch-request ( request -- response )
-    url>> path>> split-path main-responder get call-responder ;
-
-: do-request ( request -- response )
-    '[
-        ,
-        [ init-request ]
-        [ log-request ]
-        [ dispatch-request ] tri
-    ] [ [ \ do-request log-error ] [ <500> ] bi ] recover ;
-
-: ?refresh-all ( -- )
-    development-mode get-global
-    [ global [ refresh-all ] bind ] when ;
-
-: handle-client ( -- )
-    [
-        1 minutes timeouts
-        ?refresh-all
-        read-request
-        do-request
-        do-response
-    ] with-destructors ;
-
-: httpd ( port -- )
-    dup integer? [ internet-server ] when
-    "http.server" latin1 [ handle-client ] with-server ;
-
-: httpd-main ( -- )
-    8888 httpd ;
-
-MAIN: httpd-main
diff --git a/extra/icfp/2006/2006.factor b/extra/icfp/2006/2006.factor
index ca6f9d5905..d12d35a6d2 100755
--- a/extra/icfp/2006/2006.factor
+++ b/extra/icfp/2006/2006.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2007 Gavin Harrison
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math sequences kernel.private namespaces arrays io
-io.files splitting io.binary math.functions vectors quotations
-combinators io.encodings.binary ;
+io.files splitting grouping io.binary math.functions vectors
+quotations combinators io.encodings.binary ;
 IN: icfp.2006
 
 SYMBOL: regs
diff --git a/extra/inverse/inverse-tests.factor b/extra/inverse/inverse-tests.factor
index 0df41cf53f..d106b1068a 100644
--- a/extra/inverse/inverse-tests.factor
+++ b/extra/inverse/inverse-tests.factor
@@ -32,7 +32,7 @@ C: <foo> foo
 : f>c ( *fahrenheit -- *celsius )
     32 - 1.8 / ;
 
-[ { 212 32 } ] [ { 100 0 } [ [ f>c ] map ] undo ] unit-test
+[ { 212.0 32.0 } ] [ { 100 0 } [ [ f>c ] map ] undo ] unit-test
 [ { t t f } ] [ { t f 1 } [ [ >boolean ] matches? ] map ] unit-test
 [ { t f } ] [ { { 1 2 3 } 4 } [ [ >array ] matches? ] map ] unit-test
 [ 9 9 ] [ 3 [ 1/2 ^ ] undo 3 [ sqrt ] undo ] unit-test
@@ -62,10 +62,10 @@ C: <nil> nil
 [ "Malformed list" ] [ [ f list-sum ] [ ] recover ] unit-test
 
 : empty-cons ( -- cons ) cons new ;
-: cons* ( cdr car -- cons ) { set-cons-cdr set-cons-car } cons construct ;
+: cons* ( cdr car -- cons ) cons boa ;
 
 [ ] [ T{ cons f f f } [ empty-cons ] undo ] unit-test
-[ 1 2 ] [ 2 1 <cons> [ cons* ] undo ] unit-test
+[ 1 2 ] [ 1 2 <cons> [ cons* ] undo ] unit-test
 
 [ t ] [ pi [ pi ] matches? ] unit-test
 [ 0.0 ] [ 0.0 pi + [ pi + ] undo ] unit-test
diff --git a/extra/inverse/inverse.factor b/extra/inverse/inverse.factor
index 705c2d070b..b843c73983 100755
--- a/extra/inverse/inverse.factor
+++ b/extra/inverse/inverse.factor
@@ -1,8 +1,11 @@
-USING: kernel words inspector slots quotations sequences assocs
-math arrays inference effects shuffle continuations debugger
-classes.tuple namespaces vectors bit-arrays byte-arrays strings
-sbufs math.functions macros sequences.private combinators
-mirrors combinators.lib ;
+! Copyright (C) 2007, 2008 Daniel Ehrenberg.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel words summary slots quotations
+sequences assocs math arrays stack-checker effects generalizations
+continuations debugger classes.tuple namespaces vectors
+bit-arrays byte-arrays strings sbufs math.functions macros
+sequences.private combinators mirrors
+combinators.short-circuit ;
 IN: inverse
 
 TUPLE: fail ;
@@ -31,14 +34,13 @@ M: no-inverse summary
     drop "The word cannot be used in pattern matching" ;
 
 : next ( revquot -- revquot* first )
-    dup empty?
     [ "Badly formed math inverse" throw ]
-    [ unclip-slice ] if ;
+    [ unclip-slice ] if-empty ;
 
 : constant-word? ( word -- ? )
     stack-effect
-    [ effect-out length 1 = ] keep
-    effect-in length 0 = and ;
+    [ out>> length 1 = ] keep
+    in>> length 0 = and ;
 
 : assure-constant ( constant -- quot )
     dup word? [ "Badly formed math inverse" throw ] when 1quotation ;
@@ -62,7 +64,7 @@ UNION: explicit-inverse normal-inverse math-inverse pop-inverse ;
 
 : enough? ( stack word -- ? )
     dup deferred? [ 2drop f ] [
-        [ >r length r> 1quotation infer effect-in >= ]
+        [ >r length r> 1quotation infer in>> >= ]
         [ 3drop f ] recover
     ] if ;
 
@@ -77,10 +79,10 @@ UNION: explicit-inverse normal-inverse math-inverse pop-inverse ;
     { [ word? ] [ primitive? not ] [
         { "inverse" "math-inverse" "pop-inverse" }
         [ word-prop ] with contains? not
-    ] } <-&& ; 
+    ] } 1&& ; 
 
 : (flatten) ( quot -- )
-    [ dup flattenable? [ word-def (flatten) ] [ , ] if ] each ;
+    [ dup flattenable? [ def>> (flatten) ] [ , ] if ] each ;
 
  : retain-stack-overflow? ( error -- ? )
     { "kernel-error" 14 f f } = ;
@@ -113,8 +115,7 @@ M: pop-inverse inverse
     "pop-inverse" word-prop compose call ;
 
 : (undo) ( revquot -- )
-    dup empty? [ drop ]
-    [ unclip-slice inverse % (undo) ] if ;
+    [ unclip-slice inverse % (undo) ] unless-empty ;
 
 : [undo] ( quot -- undo )
     flatten fold reverse [ (undo) ] [ ] make ;
@@ -204,12 +205,12 @@ DEFER: _
     "predicate" word-prop [ dupd call assure ] curry ;
 
 : slot-readers ( class -- quot )
-    all-slots rest ! tail gets rid of delegate
-    [ slot-spec-reader 1quotation [ keep ] curry ] map concat
+    all-slots
+    [ name>> reader-word 1quotation [ keep ] curry ] map concat
     [ ] like [ drop ] compose ;
 
 : ?wrapped ( object -- wrapped )
-    dup wrapper? [ wrapped ] when ;
+    dup wrapper? [ wrapped>> ] when ;
 
 : boa-inverse ( class -- quot )
     [ deconstruct-pred ] keep slot-readers compose ;
@@ -223,17 +224,6 @@ DEFER: _
 
 \ new 1 [ ?wrapped empty-inverse ] define-pop-inverse
 
-: writer>reader ( word -- word' )
-    [ "writing" word-prop "slots" word-prop ] keep
-    [ swap slot-spec-writer = ] curry find nip slot-spec-reader ;
-
-: construct-inverse ( class setters -- quot )
-    >r deconstruct-pred r>
-    [ writer>reader ] map [ get-slots ] curry
-    compose ;
-
-\ construct 2 [ >r ?wrapped r> construct-inverse ] define-pop-inverse
-
 ! More useful inverse-based combinators
 
 : recover-fail ( try fail -- )
@@ -243,11 +233,11 @@ DEFER: _
     ] recover ; inline
 
 : true-out ( quot effect -- quot' )
-    effect-out [ ndrop ] curry
+    out>> [ ndrop ] curry
     [ t ] 3compose ;
 
 : false-recover ( effect -- quot )
-    effect-in [ ndrop f ] curry [ recover-fail ] curry ;
+    in>> [ ndrop f ] curry [ recover-fail ] curry ;
 
 : [matches?] ( quot -- undoes?-quot )
     [undo] dup infer [ true-out ] keep false-recover curry ;
diff --git a/extra/io/buffers/buffers.factor b/extra/io/buffers/buffers.factor
deleted file mode 100755
index d5b917246a..0000000000
--- a/extra/io/buffers/buffers.factor
+++ /dev/null
@@ -1,77 +0,0 @@
-! Copyright (C) 2004, 2005 Mackenzie Straight.
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.accessors alien.c-types alien.syntax kernel
-kernel.private libc math sequences byte-arrays strings hints
-accessors math.order ;
-IN: io.buffers
-
-TUPLE: buffer size ptr fill pos ;
-
-: <buffer> ( n -- buffer )
-    dup malloc 0 0 buffer boa ;
-
-: buffer-free ( buffer -- )
-    dup buffer-ptr free  f swap set-buffer-ptr ;
-
-: buffer-reset ( n buffer -- )
-    0 swap { set-buffer-fill set-buffer-pos } set-slots ;
-
-: buffer-consume ( n buffer -- )
-    [ buffer-pos + ] keep
-    [ buffer-fill min ] keep
-    [ set-buffer-pos ] keep
-    dup buffer-pos over buffer-fill >= [
-        0 over set-buffer-pos
-        0 over set-buffer-fill
-    ] when drop ;
-
-: buffer@ ( buffer -- alien )
-    dup buffer-pos swap buffer-ptr <displaced-alien> ;
-
-: buffer-end ( buffer -- alien )
-    dup buffer-fill swap buffer-ptr <displaced-alien> ;
-
-: buffer-peek ( buffer -- byte )
-    buffer@ 0 alien-unsigned-1 ;
-
-: buffer-pop ( buffer -- byte )
-    dup buffer-peek 1 rot buffer-consume ;
-
-: (buffer-read) ( n buffer -- byte-array )
-    [ [ fill>> ] [ pos>> ] bi - min ] keep
-    buffer@ swap memory>byte-array ;
-
-: buffer-read ( n buffer -- byte-array )
-    [ (buffer-read) ] [ buffer-consume ] 2bi ;
-
-: buffer-length ( buffer -- n )
-    [ fill>> ] [ pos>> ] bi - ;
-
-: buffer-capacity ( buffer -- n )
-    [ size>> ] [ fill>> ] bi - ;
-
-: buffer-empty? ( buffer -- ? )
-    fill>> zero? ;
-
-: extend-buffer ( n buffer -- )
-    2dup buffer-ptr swap realloc
-    over set-buffer-ptr set-buffer-size ;
-
-: check-overflow ( n buffer -- )
-    2dup buffer-capacity > [ extend-buffer ] [ 2drop ] if ;
-
-: >buffer ( byte-array buffer -- )
-    over length over check-overflow
-    [ buffer-end byte-array>memory ] 2keep
-    [ buffer-fill swap length + ] keep set-buffer-fill ;
-
-: byte>buffer ( byte buffer -- )
-    1 over check-overflow
-    [ buffer-end 0 set-alien-unsigned-1 ] keep
-    [ 1+ ] change-fill drop ;
-
-: n>buffer ( n buffer -- )
-    [ buffer-fill + ] keep 
-    [ buffer-size > [ "Buffer overflow" throw ] when ] 2keep
-    set-buffer-fill ;
diff --git a/extra/io/encodings/ascii/ascii-docs.factor b/extra/io/encodings/ascii/ascii-docs.factor
deleted file mode 100644
index 0b54a341d9..0000000000
--- a/extra/io/encodings/ascii/ascii-docs.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-USING: help.markup help.syntax ;
-IN: io.encodings.ascii
-
-HELP: ascii
-{ $class-description "This is the encoding descriptor which denotes an ASCII encoding. By default, if there's a non-ASCII character in an input stream, it will be replaced with a replacement character (U+FFFD), and if a non-ASCII character is used in output, an exception is thrown." }
-{ $see-also "encodings-introduction" } ;
-
-ABOUT: ascii
diff --git a/extra/io/files/unique/unique-tests.factor b/extra/io/files/unique/unique-tests.factor
new file mode 100644
index 0000000000..c29a94f395
--- /dev/null
+++ b/extra/io/files/unique/unique-tests.factor
@@ -0,0 +1,13 @@
+USING: io.encodings.ascii sequences strings io io.files accessors
+tools.test kernel io.files.unique ;
+IN: io.files.unique.tests
+
+[ 123 ] [
+    "core" ".test" [
+        [
+            ascii [
+                123 CHAR: a <repetition> >string write
+            ] with-file-writer
+        ] keep file-info size>>
+    ] with-unique-file
+] unit-test
diff --git a/extra/io/files/unique/unique.factor b/extra/io/files/unique/unique.factor
index 06a3ec8dd2..db11471a7a 100644
--- a/extra/io/files/unique/unique.factor
+++ b/extra/io/files/unique/unique.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2008 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.bitfields combinators.lib math.parser
+USING: kernel math math.bitwise combinators.lib math.parser
 random sequences sequences.lib continuations namespaces
 io.files io arrays io.files.unique.backend system
 combinators vocabs.loader ;
@@ -15,7 +15,7 @@ IN: io.files.unique
     [ 10 random CHAR: 0 + ] [ random-letter ] if ;
 
 : random-name ( n -- string )
-    [ drop random-ch ] "" map-as ;
+    [ random-ch ] "" replicate-as ;
 
 : unique-length ( -- n ) 10 ; inline
 : unique-retries ( -- n ) 10 ; inline
diff --git a/extra/io/paths/paths.factor b/extra/io/paths/paths.factor
index 171f8122c5..fb4f6d3a6d 100755
--- a/extra/io/paths/paths.factor
+++ b/extra/io/paths/paths.factor
@@ -1,5 +1,5 @@
 USING: io.files kernel sequences accessors
-dlists arrays sequences.lib ;
+dlists deques arrays sequences.lib ;
 IN: io.paths
 
 TUPLE: directory-iterator path bfs queue ;
@@ -18,7 +18,7 @@ TUPLE: directory-iterator path bfs queue ;
     dup path>> over push-directory ;
 
 : next-file ( iter -- file/f )
-    dup queue>> dlist-empty? [ drop f ] [
+    dup queue>> deque-empty? [ drop f ] [
         dup queue>> pop-back first2
         [ over push-directory next-file ] [ nip ] if
     ] if ;
diff --git a/extra/windows/nt/authors.txt b/extra/io/serial/authors.txt
similarity index 100%
rename from extra/windows/nt/authors.txt
rename to extra/io/serial/authors.txt
diff --git a/extra/io/serial/serial.factor b/extra/io/serial/serial.factor
new file mode 100644
index 0000000000..936bc182bc
--- /dev/null
+++ b/extra/io/serial/serial.factor
@@ -0,0 +1,22 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien.c-types assocs combinators destructors
+kernel math math.bitwise math.parser sequences summary system
+vocabs.loader ;
+IN: io.serial
+
+TUPLE: serial stream path baud 
+    termios iflag oflag cflag lflag ;
+
+ERROR: invalid-baud baud ;
+M: invalid-baud summary ( invalid-baud -- string )
+    "Baud rate "
+    swap baud>> number>string
+    " not supported" 3append ;
+
+HOOK: lookup-baud os ( m -- n )
+HOOK: open-serial os ( serial -- stream )
+
+{
+    { [ os unix? ] [ "io.serial.unix" ] } 
+} cond require
diff --git a/extra/io/serial/summary.txt b/extra/io/serial/summary.txt
new file mode 100644
index 0000000000..5ccd99dbaa
--- /dev/null
+++ b/extra/io/serial/summary.txt
@@ -0,0 +1 @@
+Serial port library
diff --git a/extra/io/serial/tags.txt b/extra/io/serial/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/bsd/bsd.factor b/extra/io/serial/unix/bsd/bsd.factor
new file mode 100644
index 0000000000..b684190698
--- /dev/null
+++ b/extra/io/serial/unix/bsd/bsd.factor
@@ -0,0 +1,86 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax kernel math.bitwise sequences system io.serial ;
+IN: io.serial.unix
+
+M: bsd lookup-baud ( m -- n )
+    dup {
+        0 50 75 110 134 150 200 300 600 1200 1800 2400 4800
+        7200 9600 14400 19200 28800 38400 57600 76800 115200
+        230400 460800 921600
+    } member? [ invalid-baud ] unless ;
+
+: TCSANOW     0 ; inline
+: TCSADRAIN   1 ; inline
+: TCSAFLUSH   2 ; inline
+: TCSASOFT    HEX: 10 ; inline
+
+: TCIFLUSH    1 ; inline
+: TCOFLUSH    2 ; inline
+: TCIOFLUSH   3 ; inline
+: TCOOFF      1 ; inline
+: TCOON       2 ; inline
+: TCIOFF      3 ; inline
+: TCION       4 ; inline
+
+! iflags
+: IGNBRK      HEX: 00000001 ; inline
+: BRKINT      HEX: 00000002 ; inline
+: IGNPAR      HEX: 00000004 ; inline
+: PARMRK      HEX: 00000008 ; inline
+: INPCK       HEX: 00000010 ; inline
+: ISTRIP      HEX: 00000020 ; inline
+: INLCR       HEX: 00000040 ; inline
+: IGNCR       HEX: 00000080 ; inline
+: ICRNL       HEX: 00000100 ; inline
+: IXON        HEX: 00000200 ; inline
+: IXOFF       HEX: 00000400 ; inline
+: IXANY       HEX: 00000800 ; inline
+: IMAXBEL     HEX: 00002000 ; inline
+: IUTF8       HEX: 00004000 ; inline
+
+! oflags
+: OPOST       HEX: 00000001 ; inline
+: ONLCR       HEX: 00000002 ; inline
+: OXTABS      HEX: 00000004 ; inline
+: ONOEOT      HEX: 00000008 ; inline
+
+! cflags
+: CIGNORE     HEX: 00000001 ; inline
+: CSIZE       HEX: 00000300 ; inline
+: CS5         HEX: 00000000 ; inline
+: CS6         HEX: 00000100 ; inline
+: CS7         HEX: 00000200 ; inline
+: CS8         HEX: 00000300 ; inline
+: CSTOPB      HEX: 00000400 ; inline
+: CREAD       HEX: 00000800 ; inline
+: PARENB      HEX: 00001000 ; inline
+: PARODD      HEX: 00002000 ; inline
+: HUPCL       HEX: 00004000 ; inline
+: CLOCAL      HEX: 00008000 ; inline
+: CCTS_OFLOW  HEX: 00010000 ; inline
+: CRTS_IFLOW  HEX: 00020000 ; inline
+: CRTSCTS     { CCTS_OFLOW CRTS_IFLOW } flags ; inline
+: CDTR_IFLOW  HEX: 00040000 ; inline
+: CDSR_OFLOW  HEX: 00080000 ; inline
+: CCAR_OFLOW  HEX: 00100000 ; inline
+: MDMBUF      HEX: 00100000 ; inline
+
+! lflags
+: ECHOKE      HEX: 00000001 ; inline
+: ECHOE       HEX: 00000002 ; inline
+: ECHOK       HEX: 00000004 ; inline
+: ECHO        HEX: 00000008 ; inline
+: ECHONL      HEX: 00000010 ; inline
+: ECHOPRT     HEX: 00000020 ; inline
+: ECHOCTL     HEX: 00000040 ; inline
+: ISIG        HEX: 00000080 ; inline
+: ICANON      HEX: 00000100 ; inline
+: ALTWERASE   HEX: 00000200 ; inline
+: IEXTEN      HEX: 00000400 ; inline
+: EXTPROC     HEX: 00000800 ; inline
+: TOSTOP      HEX: 00400000 ; inline
+: FLUSHO      HEX: 00800000 ; inline
+: NOKERNINFO  HEX: 02000000 ; inline
+: PENDIN      HEX: 20000000 ; inline
+: NOFLSH      HEX: 80000000 ; inline
diff --git a/extra/io/serial/unix/bsd/tags.txt b/extra/io/serial/unix/bsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/unix/bsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/linux/linux.factor b/extra/io/serial/unix/linux/linux.factor
new file mode 100644
index 0000000000..342ff4499f
--- /dev/null
+++ b/extra/io/serial/unix/linux/linux.factor
@@ -0,0 +1,130 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs alien.syntax kernel io.serial system unix ;
+IN: io.serial.unix
+
+: TCSANOW     0 ; inline
+: TCSADRAIN   1 ; inline
+: TCSAFLUSH   2 ; inline
+
+: TCIFLUSH    0 ; inline
+: TCOFLUSH    1 ; inline
+: TCIOFLUSH   2 ; inline
+
+: TCOOFF      0 ; inline
+: TCOON       1 ; inline
+: TCIOFF      2 ; inline
+: TCION       3 ; inline
+
+! iflag
+: IGNBRK  OCT: 0000001 ; inline
+: BRKINT  OCT: 0000002 ; inline
+: IGNPAR  OCT: 0000004 ; inline
+: PARMRK  OCT: 0000010 ; inline
+: INPCK   OCT: 0000020 ; inline
+: ISTRIP  OCT: 0000040 ; inline
+: INLCR   OCT: 0000100 ; inline
+: IGNCR   OCT: 0000200 ; inline
+: ICRNL   OCT: 0000400 ; inline
+: IUCLC   OCT: 0001000 ; inline
+: IXON    OCT: 0002000 ; inline
+: IXANY   OCT: 0004000 ; inline
+: IXOFF   OCT: 0010000 ; inline
+: IMAXBEL OCT: 0020000 ; inline
+: IUTF8   OCT: 0040000 ; inline
+
+! oflag
+: OPOST   OCT: 0000001 ; inline
+: OLCUC   OCT: 0000002 ; inline
+: ONLCR   OCT: 0000004 ; inline
+: OCRNL   OCT: 0000010 ; inline
+: ONOCR   OCT: 0000020 ; inline
+: ONLRET  OCT: 0000040 ; inline
+: OFILL   OCT: 0000100 ; inline
+: OFDEL   OCT: 0000200 ; inline
+: NLDLY  OCT: 0000400 ; inline
+:   NL0  OCT: 0000000 ; inline
+:   NL1  OCT: 0000400 ; inline
+: CRDLY  OCT: 0003000 ; inline
+:   CR0  OCT: 0000000 ; inline
+:   CR1  OCT: 0001000 ; inline
+:   CR2  OCT: 0002000 ; inline
+:   CR3  OCT: 0003000 ; inline
+: TABDLY OCT: 0014000 ; inline
+:   TAB0 OCT: 0000000 ; inline
+:   TAB1 OCT: 0004000 ; inline
+:   TAB2 OCT: 0010000 ; inline
+:   TAB3 OCT: 0014000 ; inline
+: BSDLY  OCT: 0020000 ; inline
+:   BS0  OCT: 0000000 ; inline
+:   BS1  OCT: 0020000 ; inline
+: FFDLY  OCT: 0100000 ; inline
+:   FF0  OCT: 0000000 ; inline
+:   FF1  OCT: 0100000 ; inline
+
+! cflags
+: CSIZE   OCT: 0000060 ; inline
+:   CS5   OCT: 0000000 ; inline
+:   CS6   OCT: 0000020 ; inline
+:   CS7   OCT: 0000040 ; inline
+:   CS8   OCT: 0000060 ; inline
+: CSTOPB  OCT: 0000100 ; inline
+: CREAD   OCT: 0000200 ; inline
+: PARENB  OCT: 0000400 ; inline
+: PARODD  OCT: 0001000 ; inline
+: HUPCL   OCT: 0002000 ; inline
+: CLOCAL  OCT: 0004000 ; inline
+: CIBAUD  OCT: 002003600000 ; inline
+: CRTSCTS OCT: 020000000000 ; inline
+
+! lflags
+: ISIG    OCT: 0000001 ; inline
+: ICANON  OCT: 0000002 ; inline
+: XCASE  OCT: 0000004 ; inline
+: ECHO    OCT: 0000010 ; inline
+: ECHOE   OCT: 0000020 ; inline
+: ECHOK   OCT: 0000040 ; inline
+: ECHONL  OCT: 0000100 ; inline
+: NOFLSH  OCT: 0000200 ; inline
+: TOSTOP  OCT: 0000400 ; inline
+: ECHOCTL OCT: 0001000 ; inline
+: ECHOPRT OCT: 0002000 ; inline
+: ECHOKE  OCT: 0004000 ; inline
+: FLUSHO  OCT: 0010000 ; inline
+: PENDIN  OCT: 0040000 ; inline
+: IEXTEN  OCT: 0100000 ; inline
+
+M: linux lookup-baud ( n -- n )
+    dup H{
+        { 0 OCT: 0000000 }
+        { 50    OCT: 0000001 }
+        { 75    OCT: 0000002 }
+        { 110   OCT: 0000003 }
+        { 134   OCT: 0000004 }
+        { 150   OCT: 0000005 }
+        { 200   OCT: 0000006 }
+        { 300   OCT: 0000007 }
+        { 600   OCT: 0000010 }
+        { 1200  OCT: 0000011 }
+        { 1800  OCT: 0000012 }
+        { 2400  OCT: 0000013 }
+        { 4800  OCT: 0000014 }
+        { 9600  OCT: 0000015 }
+        { 19200 OCT: 0000016 }
+        { 38400 OCT: 0000017 }
+        { 57600   OCT: 0010001 }
+        { 115200  OCT: 0010002 }
+        { 230400  OCT: 0010003 }
+        { 460800  OCT: 0010004 }
+        { 500000  OCT: 0010005 }
+        { 576000  OCT: 0010006 }
+        { 921600  OCT: 0010007 }
+        { 1000000 OCT: 0010010 }
+        { 1152000 OCT: 0010011 }
+        { 1500000 OCT: 0010012 }
+        { 2000000 OCT: 0010013 }
+        { 2500000 OCT: 0010014 }
+        { 3000000 OCT: 0010015 }
+        { 3500000 OCT: 0010016 }
+        { 4000000 OCT: 0010017 }
+    } at* [ nip ] [ drop invalid-baud ] if ;
diff --git a/extra/io/serial/unix/linux/tags.txt b/extra/io/serial/unix/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/unix/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/tags.txt b/extra/io/serial/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/termios/bsd/bsd.factor b/extra/io/serial/unix/termios/bsd/bsd.factor
new file mode 100644
index 0000000000..414ec98438
--- /dev/null
+++ b/extra/io/serial/unix/termios/bsd/bsd.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax kernel sequences system ;
+IN: io.serial.unix.termios
+
+: NCCS 20 ; inline
+
+TYPEDEF: uint tcflag_t
+TYPEDEF: uchar cc_t
+TYPEDEF: uint speed_t
+
+C-STRUCT: termios
+    { "tcflag_t" "iflag" }           !  input mode flags
+    { "tcflag_t" "oflag" }           !  output mode flags
+    { "tcflag_t" "cflag" }           !  control mode flags
+    { "tcflag_t" "lflag" }           !  local mode flags
+    { { "cc_t" NCCS } "cc" }         !  control characters
+    { "speed_t" "ispeed" }           !  input speed
+    { "speed_t" "ospeed" } ;         !  output speed
diff --git a/extra/io/serial/unix/termios/bsd/tags.txt b/extra/io/serial/unix/termios/bsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/unix/termios/bsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/termios/linux/linux.factor b/extra/io/serial/unix/termios/linux/linux.factor
new file mode 100644
index 0000000000..c7da10a6f5
--- /dev/null
+++ b/extra/io/serial/unix/termios/linux/linux.factor
@@ -0,0 +1,20 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax kernel system unix ;
+IN: io.serial.unix.termios
+
+: NCCS 32 ; inline
+
+TYPEDEF: uchar cc_t
+TYPEDEF: uint speed_t
+TYPEDEF: uint tcflag_t
+
+C-STRUCT: termios
+    { "tcflag_t" "iflag" }           !  input mode flags
+    { "tcflag_t" "oflag" }           !  output mode flags
+    { "tcflag_t" "cflag" }           !  control mode flags
+    { "tcflag_t" "lflag" }           !  local mode flags
+    { "cc_t" "line" }                !  line discipline
+    { { "cc_t" NCCS } "cc" }         !  control characters
+    { "speed_t" "ispeed" }           !  input speed
+    { "speed_t" "ospeed" } ;         !  output speed
diff --git a/extra/io/serial/unix/termios/linux/tags.txt b/extra/io/serial/unix/termios/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/unix/termios/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/termios/tags.txt b/extra/io/serial/unix/termios/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/io/serial/unix/termios/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/io/serial/unix/termios/termios.factor b/extra/io/serial/unix/termios/termios.factor
new file mode 100644
index 0000000000..e5ccd37e87
--- /dev/null
+++ b/extra/io/serial/unix/termios/termios.factor
@@ -0,0 +1,9 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: combinators system vocabs.loader ;
+IN: io.serial.unix.termios
+
+{
+    { [ os linux? ] [ "io.serial.unix.termios.linux" ] }
+    { [ os bsd? ] [ "io.serial.unix.termios.bsd" ] }
+} cond require
diff --git a/extra/io/serial/unix/unix-tests.factor b/extra/io/serial/unix/unix-tests.factor
new file mode 100644
index 0000000000..6dd056feb5
--- /dev/null
+++ b/extra/io/serial/unix/unix-tests.factor
@@ -0,0 +1,21 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel math.bitwise serial serial.unix ;
+IN: io.serial.unix
+
+: serial-obj ( -- obj )
+    serial new
+    "/dev/ttyS0" >>path
+    19200 >>baud
+    { IGNPAR ICRNL } flags >>iflag
+    { } flags >>oflag
+    { CS8 CLOCAL CREAD } flags >>cflag
+    { ICANON } flags >>lflag ;
+
+: serial-test ( -- serial )
+    serial-obj
+    open-serial
+    dup get-termios >>termios
+    dup configure-termios
+    dup tciflush
+    dup apply-termios ;
diff --git a/extra/io/serial/unix/unix.factor b/extra/io/serial/unix/unix.factor
new file mode 100644
index 0000000000..1da6385f96
--- /dev/null
+++ b/extra/io/serial/unix/unix.factor
@@ -0,0 +1,62 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien.c-types alien.syntax combinators io.ports
+io.streams.duplex io.unix.backend system kernel math math.bitwise
+vocabs.loader unix io.serial io.serial.unix.termios ;
+IN: io.serial.unix
+
+<< {
+    { [ os linux? ] [ "io.serial.unix.linux" ] }
+    { [ os bsd? ] [ "io.serial.unix.bsd" ] }
+} cond require >>
+
+FUNCTION: speed_t cfgetispeed ( termios* t ) ;
+FUNCTION: speed_t cfgetospeed ( termios* t ) ;
+FUNCTION: int cfsetispeed ( termios* t, speed_t s ) ;
+FUNCTION: int cfsetospeed ( termios* t, speed_t s ) ;
+FUNCTION: int tcgetattr ( int i1, termios* t ) ;
+FUNCTION: int tcsetattr ( int i1, int i2, termios* t ) ;
+FUNCTION: int tcdrain ( int i1 ) ;
+FUNCTION: int tcflow ( int i1, int i2 ) ;
+FUNCTION: int tcflush ( int i1, int i2 ) ;
+FUNCTION: int tcsendbreak ( int i1, int i2 ) ;
+FUNCTION: void cfmakeraw ( termios* t ) ;
+FUNCTION: int cfsetspeed ( termios* t, speed_t s ) ;
+
+: fd>duplex-stream ( fd -- duplex-stream )
+    <fd> init-fd
+    [ <input-port> ] [ <output-port> ] bi <duplex-stream> ;
+
+: open-rw ( path -- fd ) O_RDWR file-mode open-file  ;
+: <file-rw> ( path -- stream ) open-rw fd>duplex-stream ;
+
+M: unix open-serial ( serial -- serial' )
+    path>> { O_RDWR O_NOCTTY O_NDELAY } flags file-mode open-file
+    fd>duplex-stream ;
+
+: serial-fd ( serial -- fd )
+    stream>> in>> handle>> fd>> ;
+
+: get-termios ( serial -- termios )
+    serial-fd
+    "termios" <c-object> [ tcgetattr io-error ] keep ;
+
+: configure-termios ( serial -- )
+    dup termios>>
+    {
+        [ [ iflag>> ] dip over [ set-termios-iflag ] [ 2drop ] if ]
+        [ [ oflag>> ] dip over [ set-termios-oflag ] [ 2drop ] if ]
+        [
+            [
+                [ cflag>> 0 or ] [ baud>> lookup-baud ] bi bitor
+            ] dip set-termios-cflag
+        ]
+        [ [ lflag>> ] dip over [ set-termios-lflag ] [ 2drop ] if ]
+    } 2cleave ;
+
+: tciflush ( serial -- )
+    serial-fd TCIFLUSH tcflush io-error ;
+
+: apply-termios ( serial -- )
+    [ serial-fd TCSANOW ]
+    [ termios>> ] bi tcsetattr io-error ;
diff --git a/extra/io/server/server-docs.factor b/extra/io/server/server-docs.factor
deleted file mode 100755
index 50f38cb146..0000000000
--- a/extra/io/server/server-docs.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-USING: help help.syntax help.markup io ;
-IN: io.server
-
-HELP: with-server
-{ $values { "seq" "a sequence of address specifiers" } { "service" "a string or " { $link f } } { "encoding" "an encoding to use for client connections" } { "quot" "a quotation" } }
-{ $description "Starts a TCP/IP server. The quotation is called in a new thread for each client connection, with the client connection being both the " { $link input-stream } " and " { $link output-stream } "." } ;
-
-HELP: with-datagrams
-{ $values { "seq" "a sequence of address specifiers" } { "service" "a string or " { $link f } } { "quot" "a quotation" } }
-{ $description "Starts a UDP/IP server. The quotation is called for each datagram packet received." } ;
diff --git a/extra/io/server/server-tests.factor b/extra/io/server/server-tests.factor
deleted file mode 100755
index 86cfe35bc1..0000000000
--- a/extra/io/server/server-tests.factor
+++ /dev/null
@@ -1,7 +0,0 @@
-IN: io.server.tests
-USING: tools.test io.server io.server.private kernel ;
-
-{ 2 0 } [ [ ] server-loop ] must-infer-as
-{ 2 0 } [ [ ] with-connection ] must-infer-as
-{ 1 0 } [ [ ] swap datagram-loop ] must-infer-as
-{ 2 0 } [ [ ] with-datagrams ] must-infer-as
diff --git a/extra/io/server/server.factor b/extra/io/server/server.factor
deleted file mode 100755
index 359b9c6fb4..0000000000
--- a/extra/io/server/server.factor
+++ /dev/null
@@ -1,74 +0,0 @@
-! Copyright (C) 2003, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: io io.sockets io.sockets.secure io.files
-io.streams.duplex logging continuations destructors kernel math
-math.parser namespaces parser sequences strings prettyprint
-debugger quotations calendar threads concurrency.combinators
-assocs fry ;
-IN: io.server
-
-SYMBOL: servers
-
-SYMBOL: remote-address
-
-<PRIVATE
-
-LOG: accepted-connection NOTICE
-
-: with-connection ( client remote quot -- )
-    '[
-        , [ remote-address set ] [ accepted-connection ] bi
-        @
-    ] with-stream ; inline
-
-\ with-connection DEBUG add-error-logging
-
-: accept-loop ( server quot -- )
-    [
-        >r accept r> '[ , , , with-connection ] "Client" spawn drop
-    ] 2keep accept-loop ; inline
-
-: server-loop ( addrspec encoding quot -- )
-    >r <server> dup servers get push r>
-    '[ , accept-loop ] with-disposal ; inline
-
-\ server-loop NOTICE add-error-logging
-
-PRIVATE>
-
-: local-server ( port -- seq )
-    "localhost" swap t resolve-host ;
-
-: internet-server ( port -- seq )
-    f swap t resolve-host ;
-
-: secure-server ( port -- seq )
-    internet-server [ <secure> ] map ;
-
-: with-server ( seq service encoding quot -- )
-    V{ } clone servers [
-        '[ , [ , , server-loop ] with-logging ] parallel-each
-    ] with-variable ; inline
-
-: stop-server ( -- )
-    servers get dispose-each ;
-
-<PRIVATE
-
-LOG: received-datagram NOTICE
-
-: datagram-loop ( quot datagram -- )
-    [
-        [ receive dup received-datagram >r swap call r> ] keep
-        pick [ send ] [ 3drop ] if
-    ] 2keep datagram-loop ; inline
-
-: spawn-datagrams ( quot addrspec -- )
-    <datagram> [ datagram-loop ] with-disposal ; inline
-
-\ spawn-datagrams NOTICE add-input-logging
-
-PRIVATE>
-
-: with-datagrams ( seq service quot -- )
-    '[ [ , _ spawn-datagrams ] parallel-each ] with-logging ; inline
diff --git a/extra/io/server/summary.txt b/extra/io/server/summary.txt
deleted file mode 100644
index e791b704eb..0000000000
--- a/extra/io/server/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-TCP/IP and UDP/IP servers
diff --git a/extra/io/sockets/secure/secure-tests.factor b/extra/io/sockets/secure/secure-tests.factor
deleted file mode 100644
index 9b9436a8db..0000000000
--- a/extra/io/sockets/secure/secure-tests.factor
+++ /dev/null
@@ -1 +0,0 @@
-! No unit tests here, until Windows SSL is implemented
diff --git a/extra/io/unix/unix.factor b/extra/io/unix/unix.factor
deleted file mode 100755
index 3a379de78f..0000000000
--- a/extra/io/unix/unix.factor
+++ /dev/null
@@ -1,13 +0,0 @@
-USING: system words sequences vocabs.loader ;
-
-{
-    "io.unix.backend"
-    "io.unix.files"
-    "io.unix.sockets"
-    "io.unix.sockets.secure"
-    "io.unix.launcher"
-    "io.unix.mmap"
-    "io.unix.pipes"
-} [ require ] each
-
-"io.unix." os word-name append require
diff --git a/extra/io/windows/nt/nt.factor b/extra/io/windows/nt/nt.factor
deleted file mode 100755
index 8e59a4d555..0000000000
--- a/extra/io/windows/nt/nt.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-! Copyright (C) 2004, 2008 Mackenzie Straight, Doug Coleman,
-! Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USE: vocabs.loader
-USE: io.windows
-USE: io.windows.nt.backend
-USE: io.windows.nt.files
-USE: io.windows.nt.launcher
-USE: io.windows.nt.monitors
-USE: io.windows.nt.privileges
-USE: io.windows.nt.sockets
-USE: io.windows.mmap
-USE: io.windows.files
-USE: io.backend
-USE: system
-
-winnt set-io-backend
diff --git a/extra/io/windows/nt/sockets/sockets.factor b/extra/io/windows/nt/sockets/sockets.factor
deleted file mode 100755
index a31c41942f..0000000000
--- a/extra/io/windows/nt/sockets/sockets.factor
+++ /dev/null
@@ -1,179 +0,0 @@
-USING: alien alien.accessors alien.c-types byte-arrays
-continuations destructors io.ports io.timeouts io.sockets
-io.sockets io namespaces io.streams.duplex io.windows
-io.windows.sockets
-io.windows.nt.backend windows.winsock kernel libc math sequences
-threads classes.tuple.lib system combinators accessors ;
-IN: io.windows.nt.sockets
-
-: malloc-int ( object -- object )
-    "int" heap-size malloc tuck 0 set-alien-signed-4 ; inline
-
-M: winnt WSASocket-flags ( -- DWORD )
-    WSA_FLAG_OVERLAPPED ;
-
-: get-ConnectEx-ptr ( socket -- void* )
-    SIO_GET_EXTENSION_FUNCTION_POINTER
-    WSAID_CONNECTEX
-    "GUID" heap-size
-    "void*" <c-object>
-    [
-        "void*" heap-size
-        "DWORD" <c-object>
-        f
-        f
-        WSAIoctl SOCKET_ERROR = [
-            winsock-error-string throw
-        ] when
-    ] keep *void* ;
-
-TUPLE: ConnectEx-args port
-    s* name* namelen* lpSendBuffer* dwSendDataLength*
-    lpdwBytesSent* lpOverlapped* ptr* ;
-
-: wait-for-socket ( args -- n )
-    [ lpOverlapped*>> ] [ port>> ] bi twiddle-thumbs ;
-
-: <ConnectEx-args> ( sockaddr size -- ConnectEx )
-    ConnectEx-args new
-        swap >>namelen*
-        swap >>name*
-        f >>lpSendBuffer*
-        0 >>dwSendDataLength*
-        f >>lpdwBytesSent*
-        (make-overlapped) >>lpOverlapped* ;
-
-: call-ConnectEx ( ConnectEx -- )
-    ConnectEx-args >tuple*<
-    "int"
-    { "SOCKET" "sockaddr_in*" "int" "PVOID" "DWORD" "LPDWORD" "void*" }
-    "stdcall" alien-indirect drop
-    winsock-error-string [ throw ] when* ;
-
-M: object establish-connection ( client-out remote -- )
-    make-sockaddr/size <ConnectEx-args>
-        swap >>port
-        dup port>> handle>> handle>> >>s*
-        dup s*>> get-ConnectEx-ptr >>ptr*
-        dup call-ConnectEx
-        wait-for-socket drop ;
-
-TUPLE: AcceptEx-args port
-    sListenSocket* sAcceptSocket* lpOutputBuffer* dwReceiveDataLength*
-    dwLocalAddressLength* dwRemoteAddressLength* lpdwBytesReceived* lpOverlapped* ;
-
-: init-accept-buffer ( addr AcceptEx -- )
-    swap sockaddr-type heap-size 16 +
-        [ >>dwLocalAddressLength* ] [ >>dwRemoteAddressLength* ] bi
-        dup dwLocalAddressLength*>> 2 * malloc &free >>lpOutputBuffer*
-        drop ;
-
-: <AcceptEx-args> ( server addr -- AcceptEx )
-    AcceptEx-args new
-        2dup init-accept-buffer
-        swap SOCK_STREAM open-socket |dispose handle>> >>sAcceptSocket*
-        over handle>> handle>> >>sListenSocket*
-        swap >>port
-        0 >>dwReceiveDataLength*
-        f >>lpdwBytesReceived*
-        (make-overlapped) >>lpOverlapped* ;
-
-: call-AcceptEx ( AcceptEx -- )
-    AcceptEx-args >tuple*< AcceptEx drop
-    winsock-error-string [ throw ] when* ;
-
-: extract-remote-address ( AcceptEx -- sockaddr )
-    {
-        [ lpOutputBuffer*>> ]
-        [ dwReceiveDataLength*>> ]
-        [ dwLocalAddressLength*>> ]
-        [ dwRemoteAddressLength*>> ]
-    } cleave
-    f <void*>
-    0 <int>
-    f <void*>
-    [ 0 <int> GetAcceptExSockaddrs ] keep *void* ;
-
-M: object (accept) ( server addr -- handle sockaddr )
-    [
-        <AcceptEx-args>
-        {
-            [ call-AcceptEx ]
-            [ wait-for-socket drop ]
-            [ sAcceptSocket*>> <win32-socket> ]
-            [ extract-remote-address ]
-        } cleave
-    ] with-destructors ;
-
-TUPLE: WSARecvFrom-args port
-       s* lpBuffers* dwBufferCount* lpNumberOfBytesRecvd*
-       lpFlags* lpFrom* lpFromLen* lpOverlapped* lpCompletionRoutine* ;
-
-: make-receive-buffer ( -- WSABUF )
-    "WSABUF" malloc-object &free
-    default-buffer-size get over set-WSABUF-len
-    default-buffer-size get malloc &free over set-WSABUF-buf ;
-
-: <WSARecvFrom-args> ( datagram -- WSARecvFrom )
-    WSARecvFrom-args new
-        swap >>port
-        dup port>> handle>> handle>> >>s*
-        dup port>> addr>> sockaddr-type heap-size
-            [ malloc &free >>lpFrom* ]
-            [ malloc-int &free >>lpFromLen* ] bi
-        make-receive-buffer >>lpBuffers*
-        1 >>dwBufferCount*
-        0 malloc-int &free >>lpFlags*
-        0 malloc-int &free >>lpNumberOfBytesRecvd*
-        (make-overlapped) >>lpOverlapped* ;
-
-: call-WSARecvFrom ( WSARecvFrom -- )
-    WSARecvFrom-args >tuple*< WSARecvFrom socket-error* ;
-
-: parse-WSARecvFrom ( n WSARecvFrom -- packet sockaddr )
-    [ lpBuffers*>> WSABUF-buf swap memory>byte-array ]
-    [ [ lpFrom*>> ] [ lpFromLen*>> *int ] bi memory>byte-array ] bi ;
-
-M: winnt (receive) ( datagram -- packet addrspec )
-    [
-        <WSARecvFrom-args>
-        [ call-WSARecvFrom ]
-        [ wait-for-socket ]
-        [ parse-WSARecvFrom ]
-        tri
-    ] with-destructors ;
-
-TUPLE: WSASendTo-args port
-       s* lpBuffers* dwBufferCount* lpNumberOfBytesSent*
-       dwFlags* lpTo* iToLen* lpOverlapped* lpCompletionRoutine* ;
-
-: make-send-buffer ( packet -- WSABUF )
-    "WSABUF" malloc-object &free
-    [ >r malloc-byte-array &free r> set-WSABUF-buf ]
-    [ >r length r> set-WSABUF-len ]
-    [ nip ]
-    2tri ;
-
-: <WSASendTo-args> ( packet addrspec datagram -- WSASendTo )
-    WSASendTo-args new
-        swap >>port
-        dup port>> handle>> handle>> >>s*
-        swap make-sockaddr/size
-            >r malloc-byte-array &free
-            r> [ >>lpTo* ] [ >>iToLen* ] bi*
-        swap make-send-buffer >>lpBuffers*
-        1 >>dwBufferCount*
-        0 >>dwFlags*
-        0 <uint> >>lpNumberOfBytesSent*
-        (make-overlapped) >>lpOverlapped* ;
-
-: call-WSASendTo ( WSASendTo -- )
-    WSASendTo-args >tuple*< WSASendTo socket-error* ;
-
-M: winnt (send) ( packet addrspec datagram -- )
-    [
-        <WSASendTo-args>
-        [ call-WSASendTo ]
-        [ wait-for-socket drop ]
-        bi
-    ] with-destructors ;
diff --git a/extra/io/windows/tags.txt b/extra/io/windows/tags.txt
deleted file mode 100644
index 8e1a55995e..0000000000
--- a/extra/io/windows/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-windows
diff --git a/extra/iokit/authors.txt b/extra/iokit/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/iokit/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/iokit/hid/authors.txt b/extra/iokit/hid/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/iokit/hid/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/iokit/hid/hid.factor b/extra/iokit/hid/hid.factor
new file mode 100644
index 0000000000..11ba5d3687
--- /dev/null
+++ b/extra/iokit/hid/hid.factor
@@ -0,0 +1,272 @@
+USING: iokit alien alien.syntax alien.c-types kernel
+system core-foundation ;
+IN: iokit.hid
+
+: kIOHIDDeviceKey "IOHIDDevice" ; inline
+
+: kIOHIDTransportKey                  "Transport" ; inline
+: kIOHIDVendorIDKey                   "VendorID" ; inline
+: kIOHIDVendorIDSourceKey             "VendorIDSource" ; inline
+: kIOHIDProductIDKey                  "ProductID" ; inline
+: kIOHIDVersionNumberKey              "VersionNumber" ; inline
+: kIOHIDManufacturerKey               "Manufacturer" ; inline
+: kIOHIDProductKey                    "Product" ; inline
+: kIOHIDSerialNumberKey               "SerialNumber" ; inline
+: kIOHIDCountryCodeKey                "CountryCode" ; inline
+: kIOHIDLocationIDKey                 "LocationID" ; inline
+: kIOHIDDeviceUsageKey                "DeviceUsage" ; inline
+: kIOHIDDeviceUsagePageKey            "DeviceUsagePage" ; inline
+: kIOHIDDeviceUsagePairsKey           "DeviceUsagePairs" ; inline
+: kIOHIDPrimaryUsageKey               "PrimaryUsage" ; inline
+: kIOHIDPrimaryUsagePageKey           "PrimaryUsagePage" ; inline
+: kIOHIDMaxInputReportSizeKey         "MaxInputReportSize" ; inline
+: kIOHIDMaxOutputReportSizeKey       "MaxOutputReportSize" ; inline
+: kIOHIDMaxFeatureReportSizeKey       "MaxFeatureReportSize" ; inline
+: kIOHIDReportIntervalKey             "ReportInterval" ; inline
+
+: kIOHIDElementKey                    "Elements" ; inline
+
+: kIOHIDElementCookieKey                      "ElementCookie" ; inline
+: kIOHIDElementTypeKey                        "Type" ; inline
+: kIOHIDElementCollectionTypeKey              "CollectionType" ; inline
+: kIOHIDElementUsageKey                       "Usage" ; inline
+: kIOHIDElementUsagePageKey                   "UsagePage" ; inline
+: kIOHIDElementMinKey                         "Min" ; inline
+: kIOHIDElementMaxKey                         "Max" ; inline
+: kIOHIDElementScaledMinKey                   "ScaledMin" ; inline
+: kIOHIDElementScaledMaxKey                   "ScaledMax" ; inline
+: kIOHIDElementSizeKey                        "Size" ; inline
+: kIOHIDElementReportSizeKey                  "ReportSize" ; inline
+: kIOHIDElementReportCountKey                 "ReportCount" ; inline
+: kIOHIDElementReportIDKey                    "ReportID" ; inline
+: kIOHIDElementIsArrayKey                     "IsArray" ; inline
+: kIOHIDElementIsRelativeKey                  "IsRelative" ; inline
+: kIOHIDElementIsWrappingKey                  "IsWrapping" ; inline
+: kIOHIDElementIsNonLinearKey                 "IsNonLinear" ; inline
+: kIOHIDElementHasPreferredStateKey           "HasPreferredState" ; inline
+: kIOHIDElementHasNullStateKey                "HasNullState" ; inline
+: kIOHIDElementFlagsKey                       "Flags" ; inline
+: kIOHIDElementUnitKey                        "Unit" ; inline
+: kIOHIDElementUnitExponentKey                "UnitExponent" ; inline
+: kIOHIDElementNameKey                        "Name" ; inline
+: kIOHIDElementValueLocationKey               "ValueLocation" ; inline
+: kIOHIDElementDuplicateIndexKey              "DuplicateIndex" ; inline
+: kIOHIDElementParentCollectionKey            "ParentCollection" ; inline
+
+: kIOHIDElementVendorSpecificKey
+    cpu ppc? "VendorSpecifc" "VendorSpecific" ? ; inline
+
+: kIOHIDElementCookieMinKey           "ElementCookieMin" ; inline
+: kIOHIDElementCookieMaxKey           "ElementCookieMax" ; inline
+: kIOHIDElementUsageMinKey            "UsageMin" ; inline
+: kIOHIDElementUsageMaxKey            "UsageMax" ; inline
+
+: kIOHIDElementCalibrationMinKey              "CalibrationMin" ; inline
+: kIOHIDElementCalibrationMaxKey              "CalibrationMax" ; inline
+: kIOHIDElementCalibrationSaturationMinKey    "CalibrationSaturationMin" ; inline
+: kIOHIDElementCalibrationSaturationMaxKey    "CalibrationSaturationMax" ; inline
+: kIOHIDElementCalibrationDeadZoneMinKey      "CalibrationDeadZoneMin" ; inline
+: kIOHIDElementCalibrationDeadZoneMaxKey      "CalibrationDeadZoneMax" ; inline
+: kIOHIDElementCalibrationGranularityKey      "CalibrationGranularity" ; inline
+
+: kIOHIDElementTypeInput_Misc        1 ; inline
+: kIOHIDElementTypeInput_Button      2 ; inline
+: kIOHIDElementTypeInput_Axis        3 ; inline
+: kIOHIDElementTypeInput_ScanCodes   4 ; inline
+: kIOHIDElementTypeOutput            129 ; inline
+: kIOHIDElementTypeFeature           257 ; inline
+: kIOHIDElementTypeCollection        513 ; inline
+
+: kIOHIDElementCollectionTypePhysical     HEX: 00 ; inline
+: kIOHIDElementCollectionTypeApplication    HEX: 01 ; inline
+: kIOHIDElementCollectionTypeLogical        HEX: 02 ; inline
+: kIOHIDElementCollectionTypeReport         HEX: 03 ; inline
+: kIOHIDElementCollectionTypeNamedArray     HEX: 04 ; inline
+: kIOHIDElementCollectionTypeUsageSwitch    HEX: 05 ; inline
+: kIOHIDElementCollectionTypeUsageModifier  HEX: 06 ; inline
+
+: kIOHIDReportTypeInput    0 ; inline
+: kIOHIDReportTypeOutput   1 ; inline
+: kIOHIDReportTypeFeature  2 ; inline
+: kIOHIDReportTypeCount    3 ; inline
+
+: kIOHIDOptionsTypeNone        HEX: 00 ; inline
+: kIOHIDOptionsTypeSeizeDevice HEX: 01 ; inline
+
+: kIOHIDQueueOptionsTypeNone    HEX: 00 ; inline
+: kIOHIDQueueOptionsTypeEnqueueAll HEX: 01 ; inline
+
+: kIOHIDElementFlagsConstantMask        HEX: 0001 ; inline
+: kIOHIDElementFlagsVariableMask        HEX: 0002 ; inline
+: kIOHIDElementFlagsRelativeMask        HEX: 0004 ; inline
+: kIOHIDElementFlagsWrapMask            HEX: 0008 ; inline
+: kIOHIDElementFlagsNonLinearMask       HEX: 0010 ; inline
+: kIOHIDElementFlagsNoPreferredMask     HEX: 0020 ; inline
+: kIOHIDElementFlagsNullStateMask       HEX: 0040 ; inline
+: kIOHIDElementFlagsVolativeMask        HEX: 0080 ; inline
+: kIOHIDElementFlagsBufferedByteMask    HEX: 0100 ; inline
+
+: kIOHIDValueScaleTypeCalibrated 0 ; inline
+: kIOHIDValueScaleTypePhysical   1 ; inline
+
+: kIOHIDTransactionDirectionTypeInput  0 ; inline
+: kIOHIDTransactionDirectionTypeOutput 1 ; inline
+
+: kIOHIDTransactionOptionDefaultOutputValue 1 ; inline
+
+TYPEDEF: ptrdiff_t IOHIDElementCookie
+TYPEDEF: int IOHIDElementType
+TYPEDEF: int IOHIDElementCollectionType
+TYPEDEF: int IOHIDReportType
+TYPEDEF: uint IOHIDOptionsType
+TYPEDEF: uint IOHIDQueueOptionsType
+TYPEDEF: uint IOHIDElementFlags
+TYPEDEF: void* IOHIDDeviceRef
+TYPEDEF: void* IOHIDElementRef
+TYPEDEF: void* IOHIDValueRef
+TYPEDEF: void* IOHIDManagerRef
+TYPEDEF: void* IOHIDTransactionRef
+TYPEDEF: UInt32 IOHIDValueScaleType
+TYPEDEF: UInt32 IOHIDTransactionDirectionType
+
+TYPEDEF: void* IOHIDCallback
+: IOHIDCallback ( quot -- alien )
+    [ "void" { "void*" "IOReturn" "void*" } "cdecl" ]
+    dip alien-callback ; inline
+
+TYPEDEF: void* IOHIDReportCallback
+: IOHIDReportCallback ( quot -- alien )
+    [ "void" { "void*" "IOReturn" "void*" "IOHIDReportType" "UInt32" "uchar*" "CFIndex" } "cdecl" ]
+    dip alien-callback ; inline
+
+TYPEDEF: void* IOHIDValueCallback
+: IOHIDValueCallback ( quot -- alien )
+    [ "void" { "void*" "IOReturn" "void*" "IOHIDValueRef" } "cdecl" ]
+    dip alien-callback ; inline
+
+TYPEDEF: void* IOHIDValueMultipleCallback
+: IOHIDValueMultipleCallback ( quot -- alien )
+    [ "void" { "void*" "IOReturn" "void*" "CFDictionaryRef" } "cdecl" ]
+    dip alien-callback ; inline
+
+TYPEDEF: void* IOHIDDeviceCallback
+: IOHIDDeviceCallback ( quot -- alien )
+    [ "void" { "void*" "IOReturn" "void*" "IOHIDDeviceRef" } "cdecl" ]
+    dip alien-callback ; inline
+
+! IOHIDDevice
+
+FUNCTION: CFTypeID IOHIDDeviceGetTypeID ( ) ;
+FUNCTION: IOHIDDeviceRef IOHIDDeviceCreate ( CFAllocatorRef allocator, io_service_t service ) ;
+FUNCTION: IOReturn IOHIDDeviceOpen ( IOHIDDeviceRef device, IOOptionBits options ) ;
+FUNCTION: IOReturn IOHIDDeviceClose ( IOHIDDeviceRef device, IOOptionBits options ) ;
+FUNCTION: Boolean IOHIDDeviceConformsTo ( IOHIDDeviceRef device, UInt32 usagePage, UInt32 usage ) ;
+FUNCTION: CFTypeRef IOHIDDeviceGetProperty ( IOHIDDeviceRef device, CFStringRef key ) ;
+FUNCTION: Boolean IOHIDDeviceSetProperty ( IOHIDDeviceRef device, CFStringRef key, CFTypeRef property ) ;
+FUNCTION: CFArrayRef IOHIDDeviceCopyMatchingElements ( IOHIDDeviceRef device, CFDictionaryRef matching, IOOptionBits options ) ;
+FUNCTION: void IOHIDDeviceScheduleWithRunLoop ( IOHIDDeviceRef device, CFRunLoopRef runLoop, CFStringRef runLoopMode ) ;
+FUNCTION: void IOHIDDeviceUnscheduleFromRunLoop ( IOHIDDeviceRef device, CFRunLoopRef runLoop, CFStringRef runLoopMode ) ;
+FUNCTION: void IOHIDDeviceRegisterRemovalCallback ( IOHIDDeviceRef device, IOHIDCallback callback, void* context ) ;
+FUNCTION: void IOHIDDeviceRegisterInputValueCallback ( IOHIDDeviceRef device, IOHIDValueCallback callback, void* context ) ;
+FUNCTION: void IOHIDDeviceRegisterInputReportCallback ( IOHIDDeviceRef device, uchar* report, CFIndex reportLength, IOHIDReportCallback callback, void* context ) ;
+FUNCTION: void IOHIDDeviceSetInputValueMatching ( IOHIDDeviceRef device, CFDictionaryRef matching ) ;
+FUNCTION: void IOHIDDeviceSetInputValueMatchingMultiple ( IOHIDDeviceRef device, CFArrayRef multiple ) ;
+FUNCTION: IOReturn IOHIDDeviceSetValue ( IOHIDDeviceRef device, IOHIDElementRef element, IOHIDValueRef value ) ;
+FUNCTION: IOReturn IOHIDDeviceSetValueMultiple ( IOHIDDeviceRef device, CFDictionaryRef multiple ) ;
+FUNCTION: IOReturn IOHIDDeviceSetValueWithCallback ( IOHIDDeviceRef device, IOHIDElementRef element, IOHIDValueRef value, CFTimeInterval timeout, IOHIDValueCallback callback, void* context ) ;
+FUNCTION: IOReturn IOHIDDeviceSetValueMultipleWithCallback ( IOHIDDeviceRef device, CFDictionaryRef multiple, CFTimeInterval timeout, IOHIDValueMultipleCallback callback, void* context ) ;
+FUNCTION: IOReturn IOHIDDeviceGetValue ( IOHIDDeviceRef device, IOHIDElementRef element, IOHIDValueRef* pValue ) ;
+FUNCTION: IOReturn IOHIDDeviceCopyValueMultiple ( IOHIDDeviceRef device, CFArrayRef elements, CFDictionaryRef* pMultiple ) ;
+FUNCTION: IOReturn IOHIDDeviceGetValueWithCallback ( IOHIDDeviceRef device, IOHIDElementRef element, IOHIDValueRef* pValue, CFTimeInterval timeout, IOHIDValueCallback callback, void* context ) ;
+FUNCTION: IOReturn IOHIDDeviceCopyValueMultipleWithCallback ( IOHIDDeviceRef device, CFArrayRef elements, CFDictionaryRef* pMultiple, CFTimeInterval timeout, IOHIDValueMultipleCallback callback, void* context ) ;
+FUNCTION: IOReturn IOHIDDeviceSetReport ( IOHIDDeviceRef device, IOHIDReportType reportType, CFIndex reportID, uchar* report, CFIndex reportLength ) ;
+FUNCTION: IOReturn IOHIDDeviceSetReportWithCallback ( IOHIDDeviceRef device, IOHIDReportType reportType, CFIndex reportID, uchar* report, CFIndex reportLength, CFTimeInterval timeout, IOHIDReportCallback callback, void* context ) ;
+FUNCTION: IOReturn IOHIDDeviceGetReport ( IOHIDDeviceRef device, IOHIDReportType reportType, CFIndex reportID, uchar* report, CFIndex* pReportLength ) ;
+FUNCTION: IOReturn IOHIDDeviceGetReportWithCallback ( IOHIDDeviceRef device, IOHIDReportType reportType, CFIndex reportID, uchar* report, CFIndex* pReportLength, CFTimeInterval timeout, IOHIDReportCallback callback, void* context ) ;
+
+! IOHIDManager
+
+FUNCTION: CFTypeID IOHIDManagerGetTypeID ( ) ;
+FUNCTION: IOHIDManagerRef IOHIDManagerCreate ( CFAllocatorRef allocator, IOOptionBits options ) ;
+FUNCTION: IOReturn IOHIDManagerOpen ( IOHIDManagerRef manager, IOOptionBits options ) ;
+FUNCTION: IOReturn IOHIDManagerClose ( IOHIDManagerRef manager, IOOptionBits options ) ;
+FUNCTION: CFTypeRef IOHIDManagerGetProperty ( IOHIDManagerRef manager, CFStringRef key ) ;
+FUNCTION: Boolean IOHIDManagerSetProperty ( IOHIDManagerRef manager, CFStringRef key, CFTypeRef value ) ;
+FUNCTION: void IOHIDManagerScheduleWithRunLoop ( IOHIDManagerRef manager, CFRunLoopRef runLoop, CFStringRef runLoopMode ) ;
+FUNCTION: void IOHIDManagerUnscheduleFromRunLoop ( IOHIDManagerRef manager, CFRunLoopRef runLoop, CFStringRef runLoopMode ) ;
+FUNCTION: void IOHIDManagerSetDeviceMatching ( IOHIDManagerRef manager, CFDictionaryRef matching ) ;
+FUNCTION: void IOHIDManagerSetDeviceMatchingMultiple ( IOHIDManagerRef manager, CFArrayRef multiple ) ;
+FUNCTION: CFSetRef IOHIDManagerCopyDevices ( IOHIDManagerRef manager ) ;
+FUNCTION: void IOHIDManagerRegisterDeviceMatchingCallback ( IOHIDManagerRef manager, IOHIDDeviceCallback callback, void* context ) ;
+FUNCTION: void IOHIDManagerRegisterDeviceRemovalCallback ( IOHIDManagerRef manager, IOHIDDeviceCallback callback, void* context ) ;
+FUNCTION: void IOHIDManagerRegisterInputReportCallback ( IOHIDManagerRef manager, IOHIDReportCallback callback, void* context ) ;
+FUNCTION: void IOHIDManagerRegisterInputValueCallback ( IOHIDManagerRef manager, IOHIDValueCallback callback, void* context ) ;
+FUNCTION: void IOHIDManagerSetInputValueMatching ( IOHIDManagerRef manager, CFDictionaryRef matching ) ;
+FUNCTION: void IOHIDManagerSetInputValueMatchingMultiple ( IOHIDManagerRef manager, CFArrayRef multiple ) ;
+
+! IOHIDElement
+
+FUNCTION: CFTypeID IOHIDElementGetTypeID ( ) ;
+FUNCTION: IOHIDElementRef IOHIDElementCreateWithDictionary ( CFAllocatorRef allocator, CFDictionaryRef dictionary ) ;
+FUNCTION: IOHIDDeviceRef IOHIDElementGetDevice ( IOHIDElementRef element ) ;
+FUNCTION: IOHIDElementRef IOHIDElementGetParent ( IOHIDElementRef element ) ;
+FUNCTION: CFArrayRef IOHIDElementGetChildren ( IOHIDElementRef element ) ;
+FUNCTION: void IOHIDElementAttach ( IOHIDElementRef element, IOHIDElementRef toAttach ) ;
+FUNCTION: void IOHIDElementDetach ( IOHIDElementRef element, IOHIDElementRef toDetach ) ;
+FUNCTION: CFArrayRef IOHIDElementCopyAttached ( IOHIDElementRef element ) ;
+FUNCTION: IOHIDElementCookie IOHIDElementGetCookie ( IOHIDElementRef element ) ;
+FUNCTION: IOHIDElementType IOHIDElementGetType ( IOHIDElementRef element ) ;
+FUNCTION: IOHIDElementCollectionType IOHIDElementGetCollectionType ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetUsagePage ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetUsage ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementIsVirtual ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementIsRelative ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementIsWrapping ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementIsArray ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementIsNonLinear ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementHasPreferredState ( IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDElementHasNullState ( IOHIDElementRef element ) ;
+FUNCTION: CFStringRef IOHIDElementGetName ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetReportID ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetReportSize ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetReportCount ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetUnit ( IOHIDElementRef element ) ;
+FUNCTION: UInt32 IOHIDElementGetUnitExponent ( IOHIDElementRef element ) ;
+FUNCTION: CFIndex IOHIDElementGetLogicalMin ( IOHIDElementRef element ) ;
+FUNCTION: CFIndex IOHIDElementGetLogicalMax ( IOHIDElementRef element ) ;
+FUNCTION: CFIndex IOHIDElementGetPhysicalMin ( IOHIDElementRef element ) ;
+FUNCTION: CFIndex IOHIDElementGetPhysicalMax ( IOHIDElementRef element ) ;
+FUNCTION: CFTypeRef IOHIDElementGetProperty ( IOHIDElementRef element, CFStringRef key ) ;
+FUNCTION: Boolean IOHIDElementSetProperty ( IOHIDElementRef element, CFStringRef key, CFTypeRef property ) ;
+
+! IOHIDValue
+
+FUNCTION: CFTypeID IOHIDValueGetTypeID ( ) ;
+FUNCTION: IOHIDValueRef IOHIDValueCreateWithIntegerValue ( CFAllocatorRef allocator, IOHIDElementRef element, ulonglong timeStamp, CFIndex value ) ;
+FUNCTION: IOHIDValueRef IOHIDValueCreateWithBytes ( CFAllocatorRef allocator, IOHIDElementRef element, ulonglong timeStamp, uchar* bytes, CFIndex length ) ;
+FUNCTION: IOHIDValueRef IOHIDValueCreateWithBytesNoCopy ( CFAllocatorRef allocator, IOHIDElementRef element, ulonglong timeStamp, uchar* bytes, CFIndex length ) ;
+FUNCTION: IOHIDElementRef IOHIDValueGetElement ( IOHIDValueRef value ) ;
+FUNCTION: ulonglong IOHIDValueGetTimeStamp ( IOHIDValueRef value ) ;
+FUNCTION: CFIndex IOHIDValueGetLength ( IOHIDValueRef value ) ;
+FUNCTION: uchar* IOHIDValueGetBytePtr ( IOHIDValueRef value ) ;
+FUNCTION: CFIndex IOHIDValueGetIntegerValue ( IOHIDValueRef value ) ;
+FUNCTION: double IOHIDValueGetScaledValue ( IOHIDValueRef value, IOHIDValueScaleType type ) ;
+
+! IOHIDTransaction
+
+FUNCTION: CFTypeID IOHIDTransactionGetTypeID ( ) ;
+FUNCTION: IOHIDTransactionRef IOHIDTransactionCreate ( CFAllocatorRef allocator, IOHIDDeviceRef device, IOHIDTransactionDirectionType direction, IOOptionBits options ) ;
+FUNCTION: IOHIDDeviceRef IOHIDTransactionGetDevice ( IOHIDTransactionRef transaction ) ;
+FUNCTION: IOHIDTransactionDirectionType IOHIDTransactionGetDirection ( IOHIDTransactionRef transaction ) ;
+FUNCTION: void IOHIDTransactionSetDirection ( IOHIDTransactionRef transaction, IOHIDTransactionDirectionType direction ) ;
+FUNCTION: void IOHIDTransactionAddElement ( IOHIDTransactionRef transaction, IOHIDElementRef element ) ;
+FUNCTION: void IOHIDTransactionRemoveElement ( IOHIDTransactionRef transaction, IOHIDElementRef element ) ;
+FUNCTION: Boolean IOHIDTransactionContainsElement ( IOHIDTransactionRef transaction, IOHIDElementRef element ) ;
+FUNCTION: void IOHIDTransactionScheduleWithRunLoop ( IOHIDTransactionRef transaction, CFRunLoopRef runLoop, CFStringRef runLoopMode ) ;
+FUNCTION: void IOHIDTransactionUnscheduleFromRunLoop ( IOHIDTransactionRef transaction, CFRunLoopRef runLoop, CFStringRef runLoopMode ) ;
+FUNCTION: void IOHIDTransactionSetValue ( IOHIDTransactionRef transaction, IOHIDElementRef element, IOHIDValueRef value, IOOptionBits options ) ;
+FUNCTION: IOHIDValueRef IOHIDTransactionGetValue ( IOHIDTransactionRef transaction, IOHIDElementRef element, IOOptionBits options ) ;
+FUNCTION: IOReturn IOHIDTransactionCommit ( IOHIDTransactionRef transaction ) ;
+FUNCTION: IOReturn IOHIDTransactionCommitWithCallback ( IOHIDTransactionRef transaction, CFTimeInterval timeout, IOHIDCallback callback, void* context ) ;
+FUNCTION: void IOHIDTransactionClear ( IOHIDTransactionRef transaction ) ;
+
diff --git a/extra/iokit/hid/summary.txt b/extra/iokit/hid/summary.txt
new file mode 100644
index 0000000000..5b660488a4
--- /dev/null
+++ b/extra/iokit/hid/summary.txt
@@ -0,0 +1 @@
+HID Manager bindings
diff --git a/extra/iokit/hid/tags.txt b/extra/iokit/hid/tags.txt
new file mode 100644
index 0000000000..c83070b657
--- /dev/null
+++ b/extra/iokit/hid/tags.txt
@@ -0,0 +1,3 @@
+mac
+bindings
+system
diff --git a/extra/iokit/iokit.factor b/extra/iokit/iokit.factor
new file mode 100755
index 0000000000..680723def9
--- /dev/null
+++ b/extra/iokit/iokit.factor
@@ -0,0 +1,181 @@
+USING: alien.syntax alien.c-types core-foundation system
+combinators kernel sequences debugger io accessors ;
+IN: iokit
+
+<<
+    os macosx?
+    [ "/System/Library/Frameworks/IOKit.framework" load-framework ]
+    when
+>>
+
+: kIOKitBuildVersionKey   "IOKitBuildVersion" ; inline
+: kIOKitDiagnosticsKey   "IOKitDiagnostics" ; inline
+ 
+: kIORegistryPlanesKey   "IORegistryPlanes" ; inline
+: kIOCatalogueKey    "IOCatalogue" ; inline
+
+: kIOServicePlane    "IOService" ; inline
+: kIOPowerPlane    "IOPower" ; inline
+: kIODeviceTreePlane   "IODeviceTree" ; inline
+: kIOAudioPlane    "IOAudio" ; inline
+: kIOFireWirePlane   "IOFireWire" ; inline
+: kIOUSBPlane    "IOUSB" ; inline
+
+: kIOServiceClass    "IOService" ; inline
+
+: kIOResourcesClass   "IOResources" ; inline
+
+: kIOClassKey    "IOClass" ; inline
+: kIOProbeScoreKey   "IOProbeScore" ; inline
+: kIOKitDebugKey    "IOKitDebug" ; inline
+
+: kIOProviderClassKey   "IOProviderClass" ; inline
+: kIONameMatchKey    "IONameMatch" ; inline
+: kIOPropertyMatchKey   "IOPropertyMatch" ; inline
+: kIOPathMatchKey    "IOPathMatch" ; inline
+: kIOLocationMatchKey   "IOLocationMatch" ; inline
+: kIOParentMatchKey   "IOParentMatch" ; inline
+: kIOResourceMatchKey   "IOResourceMatch" ; inline
+: kIOMatchedServiceCountKey  "IOMatchedServiceCountMatch" ; inline
+
+: kIONameMatchedKey   "IONameMatched" ; inline
+
+: kIOMatchCategoryKey   "IOMatchCategory" ; inline
+: kIODefaultMatchCategoryKey  "IODefaultMatchCategory" ; inline
+
+: kIOUserClientClassKey   "IOUserClientClass" ; inline
+
+: kIOUserClientCrossEndianKey   "IOUserClientCrossEndian" ; inline
+: kIOUserClientCrossEndianCompatibleKey  "IOUserClientCrossEndianCompatible" ; inline
+: kIOUserClientSharedInstanceKey   "IOUserClientSharedInstance" ; inline
+
+: kIOPublishNotification   "IOServicePublish" ; inline
+: kIOFirstPublishNotification  "IOServiceFirstPublish" ; inline
+: kIOMatchedNotification   "IOServiceMatched" ; inline
+: kIOFirstMatchNotification  "IOServiceFirstMatch" ; inline
+: kIOTerminatedNotification  "IOServiceTerminate" ; inline
+
+: kIOGeneralInterest   "IOGeneralInterest" ; inline
+: kIOBusyInterest    "IOBusyInterest" ; inline
+: kIOAppPowerStateInterest  "IOAppPowerStateInterest" ; inline
+: kIOPriorityPowerStateInterest  "IOPriorityPowerStateInterest" ; inline
+
+: kIOPlatformDeviceMessageKey "IOPlatformDeviceMessage" ; inline
+
+: kIOCFPlugInTypesKey   "IOCFPlugInTypes" ; inline
+
+: kIOCommandPoolSizeKey         "IOCommandPoolSize" ; inline
+
+: kIOMaximumBlockCountReadKey "IOMaximumBlockCountRead" ; inline
+: kIOMaximumBlockCountWriteKey "IOMaximumBlockCountWrite" ; inline
+: kIOMaximumByteCountReadKey "IOMaximumByteCountRead" ; inline
+: kIOMaximumByteCountWriteKey "IOMaximumByteCountWrite" ; inline
+: kIOMaximumSegmentCountReadKey "IOMaximumSegmentCountRead" ; inline
+: kIOMaximumSegmentCountWriteKey "IOMaximumSegmentCountWrite" ; inline
+: kIOMaximumSegmentByteCountReadKey "IOMaximumSegmentByteCountRead" ; inline
+: kIOMaximumSegmentByteCountWriteKey "IOMaximumSegmentByteCountWrite" ; inline
+: kIOMinimumSegmentAlignmentByteCountKey "IOMinimumSegmentAlignmentByteCount" ; inline
+: kIOMaximumSegmentAddressableBitCountKey "IOMaximumSegmentAddressableBitCount" ; inline
+
+: kIOIconKey "IOIcon" ; inline
+: kIOBundleResourceFileKey "IOBundleResourceFile" ; inline
+
+: kIOBusBadgeKey "IOBusBadge" ; inline
+: kIODeviceIconKey "IODeviceIcon" ; inline
+
+: kIOPlatformSerialNumberKey  "IOPlatformSerialNumber"  ; inline
+
+: kIOPlatformUUIDKey  "IOPlatformUUID"  ; inline
+
+: kIONVRAMDeletePropertyKey  "IONVRAM-DELETE-PROPERTY" ; inline
+: kIODTNVRAMPanicInfoKey   "aapl,panic-info" ; inline
+
+: kIOBootDeviceKey "IOBootDevice"   ; inline
+: kIOBootDevicePathKey "IOBootDevicePath"  ; inline
+: kIOBootDeviceSizeKey "IOBootDeviceSize"  ; inline
+
+: kOSBuildVersionKey   "OS Build Version" ; inline
+
+: kNilOptions 0 ; inline
+
+TYPEDEF: uint mach_port_t
+TYPEDEF: int kern_return_t
+TYPEDEF: int boolean_t
+TYPEDEF: mach_port_t io_object_t
+TYPEDEF: io_object_t io_iterator_t
+TYPEDEF: io_object_t io_registry_entry_t
+TYPEDEF: io_object_t io_service_t
+TYPEDEF: char[128] io_name_t
+TYPEDEF: char[512] io_string_t
+TYPEDEF: kern_return_t IOReturn
+
+TYPEDEF: uint IOOptionBits
+
+: MACH_PORT_NULL 0 ; inline
+: KERN_SUCCESS 0 ; inline
+
+FUNCTION: IOReturn IOMasterPort ( mach_port_t bootstrap, mach_port_t* master ) ;
+
+FUNCTION: CFDictionaryRef IOServiceMatching ( char* name ) ;
+FUNCTION: CFDictionaryRef IOServiceNameMatching ( char* name ) ;
+FUNCTION: CFDictionaryRef IOBSDNameMatching ( char* name ) ;
+
+FUNCTION: IOReturn IOObjectRetain ( io_object_t o ) ;
+FUNCTION: IOReturn IOObjectRelease ( io_object_t o ) ;
+
+FUNCTION: IOReturn IOServiceGetMatchingServices ( mach_port_t master, CFDictionaryRef matchingDict, io_iterator_t* iterator ) ;
+
+FUNCTION: io_object_t IOIteratorNext ( io_iterator_t i ) ;
+FUNCTION: void IOIteratorReset ( io_iterator_t i ) ;
+FUNCTION: boolean_t IOIteratorIsValid ( io_iterator_t i ) ;
+
+FUNCTION: IOReturn IORegistryEntryGetPath ( io_registry_entry_t entry, io_name_t plane, io_string_t path ) ;
+
+FUNCTION: IOReturn IORegistryEntryCreateCFProperties ( io_registry_entry_t entry, CFMutableDictionaryRef properties, CFAllocatorRef allocator, IOOptionBits options ) ;
+
+FUNCTION: char* mach_error_string ( IOReturn error ) ;
+
+TUPLE: mach-error error-code ;
+C: <mach-error> mach-error
+
+M: mach-error error.
+    "IOKit call failed: " print error-code>> mach_error_string print ;
+
+: mach-error ( return -- )
+    dup KERN_SUCCESS = [ drop ] [ <mach-error> throw ] if ;
+
+: master-port ( -- port )
+    MACH_PORT_NULL 0 <uint> [ IOMasterPort mach-error ] keep *uint ;
+
+: io-services-matching-dictionary ( nsdictionary -- iterator )
+    master-port swap 0 <uint>
+    [ IOServiceGetMatchingServices mach-error ] keep
+    *uint ;
+
+: io-services-matching-service ( service -- iterator )
+    IOServiceMatching io-services-matching-dictionary ;
+: io-services-matching-service-name ( service-name -- iterator )
+    IOServiceNameMatching io-services-matching-dictionary ;
+: io-services-matching-bsd-name ( bsd-name -- iterator )
+    IOBSDNameMatching io-services-matching-dictionary ;
+
+: retain-io-object ( o -- o )
+    [ IOObjectRetain mach-error ] keep ;
+: release-io-object ( o -- )
+    IOObjectRelease mach-error ;
+
+: io-objects-from-iterator* ( i -- i array )
+    [ dup IOIteratorNext dup MACH_PORT_NULL = not ]
+    [ ]
+    [ drop ] produce ;
+
+: io-objects-from-iterator ( i -- array )
+    io-objects-from-iterator* [ release-io-object ] dip ;
+    
+: properties-from-io-object ( o -- o nsdictionary )
+    dup f <void*> [
+        kCFAllocatorDefault kNilOptions
+        IORegistryEntryCreateCFProperties mach-error
+    ]
+    keep *void* ;
+
diff --git a/extra/iokit/summary.txt b/extra/iokit/summary.txt
new file mode 100644
index 0000000000..69e03254bd
--- /dev/null
+++ b/extra/iokit/summary.txt
@@ -0,0 +1 @@
+Bindings to Apple IOKit device interface
diff --git a/extra/iokit/tags.txt b/extra/iokit/tags.txt
new file mode 100644
index 0000000000..c83070b657
--- /dev/null
+++ b/extra/iokit/tags.txt
@@ -0,0 +1,3 @@
+mac
+bindings
+system
diff --git a/extra/irc/client/authors.txt b/extra/irc/client/authors.txt
index 5674120196..8421e8b778 100644
--- a/extra/irc/client/authors.txt
+++ b/extra/irc/client/authors.txt
@@ -1,2 +1,3 @@
+Bruno Deferrari
 Doug Coleman
 Slava Pestov
diff --git a/extra/irc/client/client-docs.factor b/extra/irc/client/client-docs.factor
new file mode 100644
index 0000000000..6bb6a6328e
--- /dev/null
+++ b/extra/irc/client/client-docs.factor
@@ -0,0 +1,104 @@
+USING: help.markup help.syntax quotations kernel irc.messages ;
+IN: irc.client
+
+HELP: irc-client "IRC Client object"
+"blah" ;
+
+HELP: irc-server-listener "Listener for server messages unmanaged by other listeners"
+"blah" ;
+
+HELP: irc-channel-listener "Listener for irc channels"
+"blah" ;
+
+HELP: irc-nick-listener "Listener for irc users"
+"blah" ;
+
+HELP: irc-profile "IRC Client profile object"
+"blah" ;
+
+HELP: connect-irc "Connecting to an irc server"
+{ $values { "irc-client" "an irc client object" } }
+{ $description "Connects and logins " { $link irc-client } " using the settings specified on its " { $link irc-profile } "." } ;
+
+HELP: add-listener "Listening to irc channels/users/etc"
+{ $values { "irc-listener" "an irc listener object" } { "irc-client" "an irc client object" } }
+{ $description "Registers " { $snippet "irc-listener" } " with " { $snippet "irc-client" } " and starts listening." } ;
+
+HELP: remove-listener "Stop an unregister listener"
+{ $values { "irc-listener" "an irc listener object" } { "irc-client" "an irc client object" } }
+{ $description "Unregisters " { $snippet "irc-listener" } " from " { $snippet "irc-client" } " and stops listening. This is how you part from a channel." } ;
+
+HELP: terminate-irc "Terminates an irc client"
+{ $values { "irc-client" "an irc client object" } }
+{ $description "Terminates all activity by " { $link irc-client } " cleaning up resources and notifying listeners." } ;
+
+HELP: write-message "Sends a message through a listener"
+{ $values { "message" "a string or irc message object" } { "irc-listener" "an irc listener object" } }
+{ $description "Sends " { $snippet "message" } " through " { $snippet "irc-listener" } ". Strings are automatically promoted to privmsg objects." } ;
+
+HELP: read-message "Reads a message from a listener"
+{ $values { "irc-listener" "an irc listener object" } { "message" "an irc message object" } }
+{ $description "Reads " { $snippet "message" } " from " { $snippet "irc-listener" } "." } ;
+
+ARTICLE: "irc.client" "IRC Client"
+"An IRC Client library"
+{ $heading "IRC objects:" }
+{ $subsection irc-client }
+{ $heading "Listener objects:" }
+{ $subsection irc-server-listener }
+{ $subsection irc-channel-listener }
+{ $subsection irc-nick-listener }
+{ $heading "Setup objects:" }
+{ $subsection irc-profile }
+{ $heading "Words:" }
+{ $subsection connect-irc }
+{ $subsection terminate-irc }
+{ $subsection add-listener }
+{ $subsection remove-listener }
+{ $subsection read-message }
+{ $subsection write-message }
+{ $heading "IRC messages" }
+"Some of the RFC defined irc messages as objects:"
+{ $table
+  { { $link irc-message } "base of all irc messages" }
+  { { $link logged-in } "logged in to server" }
+  { { $link ping } "ping message" }
+  { { $link join } "channel join" }
+  { { $link part } "channel part" }
+  { { $link quit } "quit from irc" }
+  { { $link privmsg } "private message (to client or channel)" }
+  { { $link kick } "kick from channel" }
+  { { $link roomlist } "list of participants in channel" }
+  { { $link nick-in-use } "chosen nick is in use by another client" }
+  { { $link notice } "notice message" }
+  { { $link mode } "mode change" }
+  { { $link unhandled } "uninmplemented/unhandled message" }
+  }
+{ $heading "Special messages" }
+"Some special messages that are created by the library and not by the irc server."
+{ $table
+  { { $link irc-end } " sent when the client isn't running anymore, listeners should stop after this." }
+  { { $link irc-disconnected } " sent to notify listeners that connection was lost." }
+  { { $link irc-connected } " sent to notify listeners that a connection with the irc server was established." } }
+
+{ $heading "Example:" }
+{ $code
+  "USING: irc.client concurrency.mailboxes ;"
+  "SYMBOL: bot"
+  "SYMBOL: mychannel"
+  "! Create the profile and client objects"
+  "\"irc.freenode.org\" irc-port \"mybot123\" f <irc-profile> <irc-client> bot set"
+  "! Connect to the server"
+  "bot get connect-irc"
+  "! Create a channel listener"
+  "\"#mychannel123\" <irc-channel-listener> mychannel set"
+  "! Register and start listener (this joins the channel)"
+  "mychannel get bot get add-listener"
+  "! Send a message to the channel"
+  "\"what's up?\" mychannel get write-message"
+  "! Read a message from the channel"
+  "mychannel get read-message"
+}
+  ;
+
+ABOUT: "irc.client"
\ No newline at end of file
diff --git a/extra/irc/client/client-tests.factor b/extra/irc/client/client-tests.factor
new file mode 100644
index 0000000000..932bdda472
--- /dev/null
+++ b/extra/irc/client/client-tests.factor
@@ -0,0 +1,178 @@
+USING: kernel tools.test accessors arrays sequences qualified
+       io io.streams.duplex namespaces threads
+       calendar irc.client.private irc.client irc.messages.private
+       concurrency.mailboxes classes assocs combinators ;
+EXCLUDE: irc.messages => join ;
+RENAME: join irc.messages => join_
+IN: irc.client.tests
+
+! Streams for testing
+TUPLE: mb-writer lines last-line disposed ;
+TUPLE: mb-reader lines disposed ;
+: <mb-writer> ( -- mb-writer ) V{ } clone V{ } clone f mb-writer boa ;
+: <mb-reader> ( -- mb-reader ) <mailbox> f mb-reader boa ;
+: push-line ( line test-reader-stream -- ) lines>> mailbox-put ;
+: <test-stream> ( -- stream ) <mb-reader> <mb-writer> <duplex-stream> ;
+M: mb-writer stream-write ( line mb-writer -- ) last-line>> push ;
+M: mb-writer stream-flush ( mb-writer -- ) drop ;
+M: mb-reader stream-readln ( mb-reader -- str/f ) lines>> mailbox-get ;
+M: mb-writer stream-nl ( mb-writer -- )
+    [ [ last-line>> concat ] [ lines>> ] bi push ] keep
+    V{ } clone >>last-line drop ;
+
+: spawn-client ( lines listeners -- irc-client )
+    "someserver" irc-port "factorbot" f <irc-profile>
+    <irc-client>
+        t >>is-running
+        <test-stream> >>stream
+    dup [ spawn-irc yield ] with-irc-client ;
+
+! to be used inside with-irc-client quotations
+: %add-named-listener ( listener -- ) [ name>> ] keep set+run-listener ;
+: %join ( channel -- ) <irc-channel-listener> irc> add-listener ;
+: %push-line ( line -- ) irc> stream>> in>> push-line yield ;
+
+: read-matching-message ( listener quot: ( msg -- ? ) -- irc-message )
+    [ in-messages>> 0.1 seconds ] dip mailbox-get-timeout? ;
+
+: with-irc ( quot: ( -- ) -- )
+    [ spawn-client ] dip [ f %push-line ] compose with-irc-client ; inline
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!                       TESTS
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+[ { t } [ irc> profile>> nickname>> me? ] unit-test
+
+  { "factorbot" } [ irc> profile>> nickname>> ] unit-test
+
+  { "someuser" } [ "someuser!n=user@some.where" parse-name ] unit-test
+
+  { "#factortest" } [ ":someuser!n=user@some.where PRIVMSG #factortest :hi"
+                      parse-irc-line forward-name ] unit-test
+
+  { "someuser" } [ ":someuser!n=user@some.where PRIVMSG factorbot :hi"
+                   parse-irc-line forward-name ] unit-test
+] with-irc
+
+! Test login and nickname set
+[ { "factorbot2" } [
+     ":some.where 001 factorbot2 :Welcome factorbot2" %push-line
+      irc> profile>> nickname>>
+  ] unit-test
+] with-irc
+
+[ { join_ "#factortest" } [
+      { ":factorbot!n=factorbo@some.where JOIN :#factortest"
+        ":ircserver.net 353 factorbot @ #factortest :@factorbot "
+        ":ircserver.net 366 factorbot #factortest :End of /NAMES list."
+        ":ircserver.net 477 factorbot #factortest :[ircserver-info] blah blah"
+      } [ %push-line ] each
+      irc> join-messages>> 0.1 seconds mailbox-get-timeout
+      [ class ] [ trailing>> ] bi
+  ] unit-test
+] with-irc
+
+[ { T{ participant-changed f "somebody" +join+ } } [
+      "#factortest" <irc-channel-listener> [ %add-named-listener ] keep
+      ":somebody!n=somebody@some.where JOIN :#factortest" %push-line
+      [ participant-changed? ] read-matching-message
+  ] unit-test
+] with-irc
+
+[ { privmsg "#factortest" "hello" } [
+      "#factortest" <irc-channel-listener> [ %add-named-listener ] keep
+      ":somebody!n=somebody@some.where PRIVMSG #factortest :hello" %push-line
+      [ privmsg? ] read-matching-message
+      [ class ] [ name>> ] [ trailing>> ] tri
+  ] unit-test
+] with-irc
+
+[ { privmsg "factorbot" "hello" } [
+      "somedude" <irc-nick-listener>  [ %add-named-listener ] keep
+      ":somedude!n=user@isp.net PRIVMSG factorbot :hello" %push-line
+      [ privmsg? ] read-matching-message
+      [ class ] [ name>> ] [ trailing>> ] tri
+  ] unit-test
+] with-irc
+
+[ { mode } [
+      "#factortest" <irc-channel-listener>  [ %add-named-listener ] keep
+      ":ircserver.net MODE #factortest +ns" %push-line
+      [ mode? ] read-matching-message class
+  ] unit-test
+] with-irc
+
+! Participant lists tests
+[ { H{ { "somedude" +normal+ } } } [
+      "#factortest" <irc-channel-listener> [ %add-named-listener ] keep
+      ":somedude!n=user@isp.net JOIN :#factortest" %push-line
+      participants>>
+  ] unit-test
+] with-irc
+
+[ { H{ { "somedude2" +normal+ } } } [
+      "#factortest" <irc-channel-listener>
+          H{ { "somedude2" +normal+ }
+             { "somedude" +normal+ } } clone >>participants
+      [ %add-named-listener ] keep
+      ":somedude!n=user@isp.net PART #factortest" %push-line
+      participants>>
+  ] unit-test
+] with-irc
+
+[ { H{ { "somedude2" +normal+ } } } [
+      "#factortest" <irc-channel-listener>
+          H{ { "somedude2" +normal+ }
+             { "somedude" +normal+ } } clone >>participants
+      [ %add-named-listener ] keep
+      ":somedude!n=user@isp.net QUIT" %push-line
+      participants>>
+  ] unit-test
+] with-irc
+
+[ { H{ { "somedude2" +normal+ } } } [
+      "#factortest" <irc-channel-listener>
+          H{ { "somedude2" +normal+ }
+             { "somedude" +normal+ } } clone >>participants
+      [ %add-named-listener ] keep
+      ":somedude2!n=user2@isp.net KICK #factortest somedude" %push-line
+      participants>>
+  ] unit-test
+] with-irc
+
+[ { H{ { "somedude2" +normal+ } } } [
+      "#factortest" <irc-channel-listener>
+          H{ { "somedude" +normal+ } } clone >>participants
+      [ %add-named-listener ] keep
+      ":somedude!n=user2@isp.net NICK :somedude2" %push-line
+      participants>>
+  ] unit-test
+] with-irc
+
+! Namelist change notification
+[ { T{ participant-changed f f f f } } [
+      "#factortest" <irc-channel-listener> [ %add-named-listener ] keep
+      ":ircserver.net 353 factorbot @ #factortest :@factorbot " %push-line
+      ":ircserver.net 366 factorbot #factortest :End of /NAMES list." %push-line
+      [ participant-changed? ] read-matching-message
+  ] unit-test
+] with-irc
+
+[ { T{ participant-changed f "somedude" +part+ f } } [
+      "#factortest" <irc-channel-listener>
+          H{ { "somedude" +normal+ } } clone >>participants
+      [ %add-named-listener ] keep
+      ":somedude!n=user@isp.net QUIT" %push-line
+      [ participant-changed? ] read-matching-message
+  ] unit-test
+] with-irc
+
+[ { T{ participant-changed f "somedude" +nick+ "somedude2" } } [
+      "#factortest" <irc-channel-listener>
+          H{ { "somedude" +normal+ } } clone >>participants
+      [ %add-named-listener ] keep
+      ":somedude!n=user2@isp.net NICK :somedude2" %push-line
+      [ participant-changed? ] read-matching-message
+  ] unit-test
+] with-irc
diff --git a/extra/irc/client/client.factor b/extra/irc/client/client.factor
index 19dca48e1d..575c26972f 100644
--- a/extra/irc/client/client.factor
+++ b/extra/irc/client/client.factor
@@ -1,70 +1,154 @@
-! Copyright (C) 2007 Doug Coleman, Slava Pestov.
+! Copyright (C) 2008 Bruno Deferrari, Doug Coleman, Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays combinators concurrency.mailboxes concurrency.futures io
-       io.encodings.8-bit io.sockets kernel namespaces sequences
-       sequences.lib splitting threads calendar classes.tuple
-       ascii assocs accessors destructors ;
+USING: concurrency.mailboxes kernel io.sockets io.encodings.8-bit calendar
+       accessors destructors namespaces io assocs arrays qualified fry
+       continuations threads strings classes combinators splitting hashtables
+       ascii irc.messages ;
+RENAME: join sequences => sjoin
+EXCLUDE: sequences => join ;
 IN: irc.client
 
 ! ======================================
 ! Setup and running objects
 ! ======================================
 
-SYMBOL: current-irc-client
-
 : irc-port 6667 ; ! Default irc port
 
-! "setup" objects
 TUPLE: irc-profile server port nickname password ;
 C: <irc-profile> irc-profile
 
-TUPLE: irc-channel-profile name password ;
-: <irc-channel-profile> ( -- irc-channel-profile ) irc-channel-profile new ;
-
-! "live" objects
-TUPLE: nick name channels log ;
-C: <nick> nick
-
-TUPLE: irc-client profile nick stream in-messages out-messages join-messages
-       listeners is-running ;
+TUPLE: irc-client profile stream in-messages out-messages join-messages
+       listeners is-running connect reconnect-time ;
 : <irc-client> ( profile -- irc-client )
-    f V{ } clone V{ } clone <nick>
-    f <mailbox> <mailbox> <mailbox> H{ } clone f irc-client boa ;
+    f <mailbox> <mailbox> <mailbox> H{ } clone f
+    [ <inet> latin1 <client> ] 15 seconds irc-client boa ;
 
 TUPLE: irc-listener in-messages out-messages ;
-: <irc-listener> ( -- irc-listener )
-    <mailbox> <mailbox> irc-listener boa ;
+TUPLE: irc-server-listener < irc-listener ;
+TUPLE: irc-channel-listener < irc-listener name password timeout participants ;
+TUPLE: irc-nick-listener < irc-listener name ;
+SYMBOL: +server-listener+
+
+! participant modes
+SYMBOL: +operator+
+SYMBOL: +voice+
+SYMBOL: +normal+
+
+: participant-mode ( n -- mode )
+    H{ { 64 +operator+ } { 43 +voice+ } { 0 +normal+ } } at ;
+
+! participant changed actions
+SYMBOL: +join+
+SYMBOL: +part+
+SYMBOL: +mode+
+SYMBOL: +nick+
+
+! listener objects
+: <irc-listener> ( -- irc-listener ) <mailbox> <mailbox> irc-listener boa ;
+
+: <irc-server-listener> ( -- irc-server-listener )
+     <mailbox> <mailbox> irc-server-listener boa ;
+
+: <irc-channel-listener> ( name -- irc-channel-listener )
+     [ <mailbox> <mailbox> ] dip f 60 seconds H{ } clone
+     irc-channel-listener boa ;
+
+: <irc-nick-listener> ( name -- irc-nick-listener )
+     [ <mailbox> <mailbox> ] dip irc-nick-listener boa ;
 
 ! ======================================
 ! Message objects
 ! ======================================
 
-SINGLETON: irc-end ! Message used when the client isn't running anymore
+TUPLE: participant-changed nick action parameter ;
+C: <participant-changed> participant-changed
 
-TUPLE: irc-message line prefix command parameters trailing timestamp ;
-TUPLE: logged-in < irc-message name ;
-TUPLE: ping < irc-message ;
-TUPLE: join < irc-message ;
-TUPLE: part < irc-message name channel ;
-TUPLE: quit < irc-message ;
-TUPLE: privmsg < irc-message name ;
-TUPLE: kick < irc-message channel who ;
-TUPLE: roomlist < irc-message channel names ;
-TUPLE: nick-in-use < irc-message asterisk name ;
-TUPLE: notice < irc-message type ;
-TUPLE: mode < irc-message name channel mode ;
-TUPLE: unhandled < irc-message ;
+SINGLETON: irc-listener-end ! send to a listener to stop its execution
+SINGLETON: irc-end          ! sent when the client isn't running anymore
+SINGLETON: irc-disconnected ! sent when connection is lost
+SINGLETON: irc-connected    ! sent when connection is established
+
+: terminate-irc ( irc-client -- )
+    [ is-running>> ] keep and [
+        [ [ irc-end ] dip in-messages>> mailbox-put ]
+        [ [ f ] dip (>>is-running) ]
+        [ stream>> dispose ]
+        tri
+    ] when* ;
 
 <PRIVATE
 
+SYMBOL: current-irc-client
+
 ! ======================================
-! Shortcuts
+! Utils
 ! ======================================
 
-: irc-client> ( -- irc-client ) current-irc-client get ;
-: irc-stream> ( -- stream ) irc-client> stream>> ;
+: irc> ( -- irc-client ) current-irc-client get ;
+: irc-stream> ( -- stream ) irc> stream>> ;
 : irc-write ( s -- ) irc-stream> stream-write ;
 : irc-print ( s -- ) irc-stream> [ stream-print ] keep stream-flush ;
+: irc-send ( irc-message -- ) irc> out-messages>> mailbox-put ;
+: listener> ( name -- listener/f ) irc> listeners>> at ;
+
+: maybe-mailbox-get ( mailbox quot: ( irc-message -- ) -- )
+    [ dup mailbox-empty? [ drop 0.1 sleep ] ] dip '[ mailbox-get @ ] if ; inline
+
+GENERIC: to-listener ( message obj -- )
+
+M: string to-listener ( message string -- )
+    listener> [ +server-listener+ listener> ] unless*
+    [ to-listener ] [ drop ] if* ;
+
+M: irc-listener to-listener ( message irc-listener -- )
+    in-messages>> mailbox-put ;
+
+: unregister-listener ( name -- )
+    irc> listeners>>
+        [ at [ irc-listener-end ] dip to-listener ]
+        [ delete-at ]
+    2bi ;
+
+: (remove-participant) ( nick listener -- )
+    [ participants>> delete-at ]
+    [ [ +part+ f <participant-changed> ] dip to-listener ] 2bi ;
+
+: remove-participant ( nick channel -- )
+    listener> [ (remove-participant) ] [ drop ] if* ;
+
+: listeners-with-participant ( nick -- seq )
+    irc> listeners>> values
+    [ dup irc-channel-listener? [ participants>> key? ] [ 2drop f ] if ]
+    with filter ;
+
+: to-listeners-with-participant ( message nickname -- )
+    listeners-with-participant [ to-listener ] with each ;
+
+: remove-participant-from-all ( nick -- )
+    dup listeners-with-participant [ (remove-participant) ] with each ;
+
+: notify-rename ( newnick oldnick listener -- )
+    [ participant-changed new +nick+ >>action
+      [ (>>nick) ] [ (>>parameter) ] [ ] tri ] dip to-listener ;
+
+: rename-participant ( newnick oldnick listener -- )
+    [ participants>> [ delete-at* drop ] [ [ swap ] dip set-at ] bi ]
+    [ notify-rename ] 3bi ;
+
+: rename-participant-in-all ( oldnick newnick -- )
+    swap dup listeners-with-participant [ rename-participant ] with with each ;
+
+: add-participant ( mode nick channel -- )
+    listener> [
+        [ participants>> set-at ]
+        [ [ +join+ f <participant-changed> ] dip to-listener ] 2bi
+    ] [ 2drop ] if* ;
+
+DEFER: me?
+
+: maybe-forward-join ( join -- )
+    [ irc-message-sender me? ] keep and
+    [ irc> join-messages>> mailbox-put ] when* ;
 
 ! ======================================
 ! IRC client messages
@@ -79,29 +163,11 @@ TUPLE: unhandled < irc-message ;
     " hostname servername :irc.factor" irc-print ;
 
 : /CONNECT ( server port -- stream )
-    <inet> latin1 <client> drop ;
+    irc> connect>> call drop ;
 
 : /JOIN ( channel password -- )
     "JOIN " irc-write
-    [ " :" swap 3append ] when* irc-print ;
-
-: /PART ( channel text -- )
-    [ "PART " irc-write irc-write ] dip
-    " :" irc-write irc-print ;
-
-: /KICK ( channel who -- )
-    [ "KICK " irc-write irc-write ] dip
-    " " irc-write irc-print ;
-
-: /PRIVMSG ( nick line -- )
-    [ "PRIVMSG " irc-write irc-write ] dip
-    " :" irc-write irc-print ;
-
-: /ACTION ( nick line -- )
-    [ 1 , "ACTION " % % 1 , ] "" make /PRIVMSG ;
-
-: /QUIT ( text -- )
-    "QUIT :" irc-write irc-print ;
+    [ [ " :" ] dip 3append ] when* irc-print ;
 
 : /PONG ( text -- )
     "PONG " irc-write irc-print ;
@@ -110,128 +176,151 @@ TUPLE: unhandled < irc-message ;
 ! Server message handling
 ! ======================================
 
-USE: prettyprint
+: me? ( string -- ? )
+    irc> profile>> nickname>> = ;
 
-GENERIC: handle-incoming-irc ( irc-message -- )
+GENERIC: forward-name ( irc-message -- name )
+M: join forward-name ( join -- name ) trailing>> ;
+M: part forward-name ( part -- name ) channel>> ;
+M: kick forward-name ( kick -- name ) channel>> ;
+M: mode forward-name ( mode -- name ) channel>> ;
+M: privmsg forward-name ( privmsg -- name )
+    dup name>> me? [ irc-message-sender ] [ name>> ] if ;
 
-M: irc-message handle-incoming-irc ( irc-message -- )
-    . ;
+UNION: single-forward join part kick mode privmsg ;
+UNION: multiple-forward nick quit ;
+UNION: broadcast-forward irc-end irc-disconnected irc-connected ;
+GENERIC: forward-message ( irc-message -- )
 
-M: logged-in handle-incoming-irc ( logged-in -- )
-    name>> irc-client> nick>> (>>name) ;
+M: irc-message forward-message ( irc-message -- )
+    +server-listener+ listener> [ to-listener ] [ drop ] if* ;
 
-M: ping handle-incoming-irc ( ping -- )
+M: single-forward forward-message ( forward-single -- )
+    dup forward-name to-listener ;
+
+M: multiple-forward forward-message ( multiple-forward -- )
+    dup irc-message-sender to-listeners-with-participant ;
+
+M: join forward-message ( join -- )
+    [ maybe-forward-join ] [ call-next-method ] bi ;
+    
+M: broadcast-forward forward-message ( irc-broadcasted-message -- )
+    irc> listeners>> values [ to-listener ] with each ;
+
+GENERIC: process-message ( irc-message -- )
+
+M: object process-message ( object -- )
+    drop ;
+    
+M: logged-in process-message ( logged-in -- )
+    name>> irc> profile>> (>>nickname) ;
+
+M: ping process-message ( ping -- )
     trailing>> /PONG ;
 
-M: nick-in-use handle-incoming-irc ( nick-in-use -- )
+M: nick-in-use process-message ( nick-in-use -- )
     name>> "_" append /NICK ;
 
-M: privmsg handle-incoming-irc ( privmsg -- )
-    dup name>> irc-client> listeners>> at
-    [ in-messages>> mailbox-put ] [ drop ] if* ;
+M: join process-message ( join -- )
+    [ drop +normal+ ] [ irc-message-sender ] [ trailing>> ] tri add-participant ;
 
-M: join handle-incoming-irc ( join -- )
-    irc-client> join-messages>> mailbox-put ;
+M: part process-message ( part -- )
+    [ irc-message-sender ] [ channel>> ] bi remove-participant ;
+
+M: kick process-message ( kick -- )
+    [ [ who>> ] [ channel>> ] bi remove-participant ]
+    [ dup who>> me? [ unregister-listener ] [ drop ] if ]
+    bi ;
+
+M: quit process-message ( quit -- )
+    irc-message-sender remove-participant-from-all ;
+
+M: nick process-message ( nick -- )
+    [ irc-message-sender ] [ trailing>> ] bi rename-participant-in-all ;
+
+: >nick/mode ( string -- nick mode )
+    dup first "+@" member? [ unclip ] [ 0 ] if participant-mode ;
+
+: names-reply>participants ( names-reply -- participants )
+    trailing>> [ blank? ] trim " " split
+    [ >nick/mode 2array ] map >hashtable ;
+
+M: names-reply process-message ( names-reply -- )
+    [ names-reply>participants ] [ channel>> listener> ] bi [
+        [ (>>participants) ]
+        [ [ f f f <participant-changed> ] dip name>> to-listener ] bi
+    ] [ drop ] if* ;
+
+: handle-incoming-irc ( irc-message -- )
+    [ forward-message ] [ process-message ] bi ;
 
 ! ======================================
 ! Client message handling
 ! ======================================
 
-GENERIC: handle-outgoing-irc ( obj -- )
-
-M: privmsg handle-outgoing-irc ( privmsg -- )
-   [ name>> ] [ trailing>> ] bi /PRIVMSG ;
-
-! ======================================
-! Message parsing
-! ======================================
-
-: split-at-first ( seq separators -- before after )
-    dupd [ member? ] curry find
-        [ cut 1 tail ]
-        [ swap ]
-    if ;
-
-: remove-heading-: ( seq -- seq ) dup ":" head? [ 1 tail ] when ;
-
-: parse-name ( string -- string )
-    remove-heading-: "!" split-at-first drop ;
-
-: split-prefix ( string -- string/f string )
-    dup ":" head?
-        [ remove-heading-: " " split1 ]
-        [ f swap ]
-    if ;
-
-: split-trailing ( string -- string string/f )
-    ":" split1 ;
-
-: string>irc-message ( string -- object )
-    dup split-prefix split-trailing
-    [ [ blank? ] trim " " split unclip swap ] dip
-    now irc-message boa ;
-
-: parse-irc-line ( string -- message )
-    string>irc-message
-    dup command>> {
-        { "PING" [ \ ping ] }
-        { "NOTICE" [ \ notice ] }
-        { "001" [ \ logged-in ] }
-        { "433" [ \ nick-in-use ] }
-        { "JOIN" [ \ join ] }
-        { "PART" [ \ part ] }
-        { "PRIVMSG" [ \ privmsg ] }
-        { "QUIT" [ \ quit ] }
-        { "MODE" [ \ mode ] }
-        { "KICK" [ \ kick ] }
-        [ drop \ unhandled ]
-    } case
-    [ [ tuple-slots ] [ parameters>> ] bi append ] dip prefix >tuple ;
+: handle-outgoing-irc ( irc-message -- )
+    irc-message>client-line irc-print ;
 
 ! ======================================
 ! Reader/Writer
 ! ======================================
 
-: stream-readln-or-close ( stream -- str/f )
-    dup stream-readln [ nip ] [ dispose f ] if* ;
-
 : handle-reader-message ( irc-message -- )
-    irc-client> in-messages>> mailbox-put ;
+    irc> in-messages>> mailbox-put ;
 
-: handle-stream-close ( -- )
-    irc-client> f >>is-running in-messages>> irc-end swap mailbox-put ;
+DEFER: (connect-irc)
 
-: reader-loop ( -- )
-    irc-client> stream>> stream-readln-or-close [
-        parse-irc-line handle-reader-message
-    ] [
-        handle-stream-close
-    ] if* ;
+: (handle-disconnect) ( -- )
+    irc>
+        [ [ irc-disconnected ] dip in-messages>> mailbox-put ]
+        [ dup reconnect-time>> sleep (connect-irc) ]
+        [ profile>> nickname>> /LOGIN ]
+    tri ;
 
-: writer-loop ( -- )
-    irc-client> out-messages>> mailbox-get handle-outgoing-irc ;
+! FIXME: do something with the exception, store somewhere to help debugging
+: handle-disconnect ( error -- )
+    drop irc> is-running>> [ (handle-disconnect) ] when ;
+
+: (reader-loop) ( -- )
+    irc> stream>> [
+        |dispose stream-readln [
+            parse-irc-line handle-reader-message
+        ] [
+            irc> terminate-irc
+        ] if*
+    ] with-destructors ;
+
+: reader-loop ( -- ? )
+    [ (reader-loop) ] [ handle-disconnect ] recover t ;
+
+: writer-loop ( -- ? )
+    irc> out-messages>> [ handle-outgoing-irc ] maybe-mailbox-get t ;
 
 ! ======================================
 ! Processing loops
 ! ======================================
 
-: in-multiplexer-loop ( -- )
-    irc-client> in-messages>> mailbox-get handle-incoming-irc ;
+: in-multiplexer-loop ( -- ? )
+    irc> in-messages>> [ handle-incoming-irc ] maybe-mailbox-get t ;
 
-! FIXME: Hack, this should be handled better
-GENERIC: add-name ( name obj -- obj )
-M: object add-name nip ;
-M: privmsg add-name swap >>name ;
-    
-: listener-loop ( name -- ) ! FIXME: take different values from the stack?
-    dup irc-client> listeners>> at [
-        out-messages>> mailbox-get add-name
-        irc-client> out-messages>>
-        mailbox-put
-    ] [ drop ] if* ;
+: strings>privmsg ( name string -- privmsg )
+    privmsg new [ (>>trailing) ] keep [ (>>name) ] keep ;
 
-: spawn-irc-loop ( quot name -- )
-    [ [ irc-client> is-running>> ] compose ] dip
+: maybe-annotate-with-name ( name obj -- obj )
+    { { [ dup string? ] [ strings>privmsg ] }
+      { [ dup privmsg instance? ] [ swap >>name ] }
+      [ nip ]
+    } cond ;
+
+: listener-loop ( name -- ? )
+    dup listener> [
+        out-messages>> [ maybe-annotate-with-name
+                         irc> out-messages>> mailbox-put ] with
+        maybe-mailbox-get t
+    ] [ drop f ] if* ;
+
+: spawn-irc-loop ( quot: ( -- ? ) name -- )
+    [ '[ irc> is-running>> [ @ ] [ f ] if ] ] dip
     spawn-server drop ;
 
 : spawn-irc ( -- )
@@ -243,33 +332,60 @@ M: privmsg add-name swap >>name ;
 ! Listener join request handling
 ! ======================================
 
-: make-registered-listener ( join -- listener )
-    <irc-listener> swap trailing>>
-    dup [ listener-loop ] curry "listener" spawn-irc-loop
-    [ irc-client> listeners>> set-at ] curry keep ;
+: set+run-listener ( name irc-listener -- )
+    over irc> listeners>> set-at
+    '[ , listener-loop ] "listener" spawn-irc-loop ;
 
-: make-join-future ( name -- future )
-    [ [ swap trailing>> = ] curry ! compare name with channel name
-      irc-client> join-messages>> 60 seconds rot mailbox-get-timeout?
-      make-registered-listener ]
-    curry future ;
+GENERIC: (add-listener) ( irc-listener -- )
+
+M: irc-channel-listener (add-listener) ( irc-channel-listener -- )
+    [ [ name>> ] [ password>> ] bi /JOIN ]
+    [ [ [ drop irc> join-messages>> ]
+        [ timeout>> ]
+        [ name>> '[ trailing>> , = ] ]
+        tri mailbox-get-timeout? trailing>> ] keep set+run-listener
+    ] bi ;
+
+M: irc-nick-listener (add-listener) ( irc-nick-listener -- )
+    [ name>> ] keep set+run-listener ;
+
+M: irc-server-listener (add-listener) ( irc-server-listener -- )
+    [ +server-listener+ ] dip set+run-listener ;
+
+GENERIC: (remove-listener) ( irc-listener -- )
+
+M: irc-nick-listener (remove-listener) ( irc-nick-listener -- )
+    name>> unregister-listener ;
+
+M: irc-channel-listener (remove-listener) ( irc-channel-listener -- )
+    [ [ name>> ] [ out-messages>> ] bi
+      [ [ part new ] dip >>channel ] dip mailbox-put ] keep
+    name>> unregister-listener ;
+
+M: irc-server-listener (remove-listener) ( irc-server-listener -- )
+   drop +server-listener+ unregister-listener ;
+
+: (connect-irc) ( irc-client -- )
+    [ profile>> [ server>> ] [ port>> ] bi /CONNECT ] keep
+        swap >>stream
+        t >>is-running
+    in-messages>> [ irc-connected ] dip mailbox-put ;
+
+: with-irc-client ( irc-client quot: ( -- ) -- )
+    [ \ current-irc-client ] dip with-variable ; inline
 
 PRIVATE>
 
-: (connect-irc) ( irc-client -- )
-    [ profile>> [ server>> ] keep port>> /CONNECT ] keep
-    swap >>stream
-    t >>is-running drop ;
-
 : connect-irc ( irc-client -- )
-    dup current-irc-client [
-        [ (connect-irc) ] [ profile>> nickname>> /LOGIN ] bi
-        spawn-irc
-    ] with-variable ;
+    [ irc>
+      [ (connect-irc) ] [ profile>> nickname>> /LOGIN ] bi
+      spawn-irc ] with-irc-client ;
 
-: listen-to ( irc-client name -- future )
-    swap current-irc-client [ [ f /JOIN ] keep make-join-future ] with-variable ;
+: add-listener ( irc-listener irc-client -- )
+    swap '[ , (add-listener) ] with-irc-client ;
 
-! shorcut for privmsgs, etc
-: sender>> ( obj -- string )
-    prefix>> parse-name ;
+: remove-listener ( irc-listener irc-client -- )
+    swap '[ , (remove-listener) ] with-irc-client ;
+
+: write-message ( message irc-listener -- ) out-messages>> mailbox-put ;
+: read-message ( irc-listener -- message ) in-messages>> mailbox-get ;
diff --git a/extra/irc/messages/authors.txt b/extra/irc/messages/authors.txt
new file mode 100644
index 0000000000..f4a8cb1dc2
--- /dev/null
+++ b/extra/irc/messages/authors.txt
@@ -0,0 +1 @@
+Bruno Deferrari
diff --git a/extra/irc/messages/messages-tests.factor b/extra/irc/messages/messages-tests.factor
new file mode 100644
index 0000000000..20f4f1b277
--- /dev/null
+++ b/extra/irc/messages/messages-tests.factor
@@ -0,0 +1,59 @@
+USING: kernel tools.test accessors arrays qualified
+       irc.messages irc.messages.private ;
+EXCLUDE: sequences => join ;
+IN: irc.messages.tests
+
+
+{ "someuser" } [ "someuser!n=user@some.where" parse-name ] unit-test
+
+irc-message new
+    ":someuser!n=user@some.where PRIVMSG #factortest :hi" >>line
+    "someuser!n=user@some.where" >>prefix
+                       "PRIVMSG" >>command
+               { "#factortest" } >>parameters
+                            "hi" >>trailing
+1array
+[ ":someuser!n=user@some.where PRIVMSG #factortest :hi"
+  string>irc-message f >>timestamp ] unit-test
+
+privmsg new
+    ":someuser!n=user@some.where PRIVMSG #factortest :hi" >>line
+    "someuser!n=user@some.where" >>prefix
+                       "PRIVMSG" >>command
+               { "#factortest" } >>parameters
+                            "hi" >>trailing
+                   "#factortest" >>name
+1array
+[ ":someuser!n=user@some.where PRIVMSG #factortest :hi"
+  parse-irc-line f >>timestamp ] unit-test
+
+join new
+    ":someuser!n=user@some.where JOIN :#factortest" >>line
+    "someuser!n=user@some.where" >>prefix
+                          "JOIN" >>command
+                             { } >>parameters
+                   "#factortest" >>trailing
+1array
+[ ":someuser!n=user@some.where JOIN :#factortest"
+  parse-irc-line f >>timestamp ] unit-test
+
+mode new
+    ":ircserver.net MODE #factortest +ns" >>line
+                          "ircserver.net" >>prefix
+                                   "MODE" >>command
+                  { "#factortest" "+ns" } >>parameters
+                            "#factortest" >>channel
+                                    "+ns" >>mode
+1array
+[ ":ircserver.net MODE #factortest +ns"
+  parse-irc-line f >>timestamp ] unit-test
+
+nick new
+    ":someuser!n=user@some.where NICK :someuser2" >>line
+                     "someuser!n=user@some.where" >>prefix
+                                           "NICK" >>command
+                                              { } >>parameters
+                                      "someuser2" >>trailing
+1array
+[ ":someuser!n=user@some.where NICK :someuser2"
+  parse-irc-line f >>timestamp ] unit-test
\ No newline at end of file
diff --git a/extra/irc/messages/messages.factor b/extra/irc/messages/messages.factor
new file mode 100755
index 0000000000..d3eca92f15
--- /dev/null
+++ b/extra/irc/messages/messages.factor
@@ -0,0 +1,130 @@
+! Copyright (C) 2008 Bruno Deferrari
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel fry splitting ascii calendar accessors combinators qualified
+       arrays classes.tuple math.order quotations ;
+RENAME: join sequences => sjoin
+EXCLUDE: sequences => join ;
+IN: irc.messages
+
+TUPLE: irc-message line prefix command parameters trailing timestamp ;
+TUPLE: logged-in < irc-message name ;
+TUPLE: ping < irc-message ;
+TUPLE: join < irc-message ;
+TUPLE: part < irc-message channel ;
+TUPLE: quit < irc-message ;
+TUPLE: nick < irc-message ;
+TUPLE: privmsg < irc-message name ;
+TUPLE: kick < irc-message channel who ;
+TUPLE: roomlist < irc-message channel names ;
+TUPLE: nick-in-use < irc-message asterisk name ;
+TUPLE: notice < irc-message type ;
+TUPLE: mode < irc-message channel mode ;
+TUPLE: names-reply < irc-message who = channel ;
+TUPLE: unhandled < irc-message ;
+
+: <irc-client-message> ( command parameters trailing -- irc-message )
+    irc-message new now >>timestamp
+    [ [ (>>trailing) ] [ (>>parameters) ] [ (>>command) ] tri ] keep ;
+
+<PRIVATE
+
+GENERIC: irc-command-string ( irc-message -- string )
+
+M: irc-message irc-command-string ( irc-message -- string ) command>> ;
+M: ping        irc-command-string ( ping -- string )    drop "PING" ;
+M: join        irc-command-string ( join -- string )    drop "JOIN" ;
+M: part        irc-command-string ( part -- string )    drop "PART" ;
+M: quit        irc-command-string ( quit -- string )    drop "QUIT" ;
+M: nick        irc-command-string ( nick -- string )    drop "NICK" ;
+M: privmsg     irc-command-string ( privmsg -- string ) drop "PRIVMSG" ;
+M: notice      irc-command-string ( notice -- string )  drop "NOTICE" ;
+M: mode        irc-command-string ( mode -- string )    drop "MODE" ;
+M: kick        irc-command-string ( kick -- string )    drop "KICK" ;
+
+GENERIC: irc-command-parameters ( irc-message -- seq )
+
+M: irc-message irc-command-parameters ( irc-message -- seq ) parameters>> ;
+M: ping        irc-command-parameters ( ping -- seq )    drop { } ;
+M: join        irc-command-parameters ( join -- seq )    drop { } ;
+M: part        irc-command-parameters ( part -- seq )    channel>> 1array ;
+M: quit        irc-command-parameters ( quit -- seq )    drop { } ;
+M: nick        irc-command-parameters ( nick -- seq )    drop { } ;
+M: privmsg     irc-command-parameters ( privmsg -- seq ) name>> 1array ;
+M: notice      irc-command-parameters ( norice -- seq )  type>> 1array ;
+M: kick irc-command-parameters ( kick -- seq )
+    [ channel>> ] [ who>> ] bi 2array ;
+M: mode irc-command-parameters ( mode -- seq )
+    [ name>> ] [ channel>> ] [ mode>> ] tri 3array ;
+
+PRIVATE>
+
+GENERIC: irc-message>client-line ( irc-message -- string )
+
+M: irc-message irc-message>client-line ( irc-message -- string )
+    [ irc-command-string ]
+    [ irc-command-parameters " " sjoin ]
+    [ trailing>> [ CHAR: : prefix ] [ "" ] if* ]
+    tri 3array " " sjoin ;
+
+GENERIC: irc-message>server-line ( irc-message -- string )
+
+M: irc-message irc-message>server-line ( irc-message -- string )
+   drop "not implemented yet" ;
+
+<PRIVATE
+! ======================================
+! Message parsing
+! ======================================
+
+: split-at-first ( seq separators -- before after )
+    dupd '[ , member? ] find
+        [ cut 1 tail ]
+        [ swap ]
+    if ;
+
+: remove-heading-: ( seq -- seq ) dup ":" head? [ 1 tail ] when ;
+
+: parse-name ( string -- string )
+    remove-heading-: "!" split-at-first drop ;
+
+: split-prefix ( string -- string/f string )
+    dup ":" head?
+        [ remove-heading-: " " split1 ]
+        [ f swap ]
+    if ;
+
+: split-trailing ( string -- string string/f )
+    ":" split1 ;
+
+PRIVATE>
+
+UNION: sender-in-prefix privmsg join part quit kick mode nick ;
+GENERIC: irc-message-sender ( irc-message -- sender )
+M: sender-in-prefix irc-message-sender ( sender-in-prefix -- sender )
+    prefix>> parse-name ;
+
+: string>irc-message ( string -- object )
+    dup split-prefix split-trailing
+    [ [ blank? ] trim " " split unclip swap ] dip
+    now irc-message boa ;
+
+: parse-irc-line ( string -- message )
+    string>irc-message
+    dup command>> {
+        { "PING" [ ping ] }
+        { "NOTICE" [ notice ] }
+        { "001" [ logged-in ] }
+        { "433" [ nick-in-use ] }
+        { "353" [ names-reply ] }
+        { "JOIN" [ join ] }
+        { "PART" [ part ] }
+        { "NICK" [ nick ] }
+        { "PRIVMSG" [ privmsg ] }
+        { "QUIT" [ quit ] }
+        { "MODE" [ mode ] }
+        { "KICK" [ kick ] }
+        [ drop unhandled ]
+    } case
+    [ [ tuple-slots ] [ parameters>> ] bi append ] dip
+    [ all-slots over [ length ] bi@ min head >quotation ] keep
+    '[ @ , boa ] call ;
diff --git a/extra/irc/ui/authors.txt b/extra/irc/ui/authors.txt
new file mode 100755
index 0000000000..50c9c38812
--- /dev/null
+++ b/extra/irc/ui/authors.txt
@@ -0,0 +1 @@
+William Schlieper
\ No newline at end of file
diff --git a/extra/irc/ui/commandparser/commandparser.factor b/extra/irc/ui/commandparser/commandparser.factor
new file mode 100755
index 0000000000..163517698a
--- /dev/null
+++ b/extra/irc/ui/commandparser/commandparser.factor
@@ -0,0 +1,17 @@
+! Copyright (C) 2008 William Schlieper
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: kernel vocabs.loader sequences strings splitting words irc.messages ;
+
+IN: irc.ui.commandparser
+
+"irc.ui.commands" require
+
+: command ( string string -- string command )
+    [ "say" ] when-empty
+    dup "irc.ui.commands" lookup
+    [ nip ]
+    [ " " append prepend "quote" "irc.ui.commands" lookup ] if* ;
+
+: parse-message ( string -- )
+    "/" ?head [ " " split1 swap command ] [ "say" command ] if execute ;
diff --git a/extra/irc/ui/commands/commands.factor b/extra/irc/ui/commands/commands.factor
new file mode 100755
index 0000000000..184a2b4de8
--- /dev/null
+++ b/extra/irc/ui/commands/commands.factor
@@ -0,0 +1,24 @@
+! Copyright (C) 2008 William Schlieper
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: accessors kernel arrays irc.client irc.messages irc.ui namespaces ;
+
+IN: irc.ui.commands
+
+: say ( string -- )
+    irc-tab get
+    [ window>> client>> profile>> nickname>> <own-message> print-irc ]
+    [ listener>> write-message ] 2bi ;
+
+: join ( string -- )
+    irc-tab get window>> join-channel ;
+
+: query ( string -- )
+    irc-tab get window>> query-nick ;
+
+: whois ( string -- )
+    "WHOIS" swap { } clone swap  <irc-client-message>
+    irc-tab get listener>> write-message ;
+
+: quote ( string -- )
+    drop ; ! THIS WILL CHANGE
diff --git a/extra/irc/ui/ircui-rc b/extra/irc/ui/ircui-rc
new file mode 100755
index 0000000000..a1533c7b4d
--- /dev/null
+++ b/extra/irc/ui/ircui-rc
@@ -0,0 +1,9 @@
+! Default system ircui-rc file
+! Copy into .ircui-rc in your home directory and then change username and such
+! To find your home directory, type "home ." into a Factor listener
+
+USING: irc.client irc.ui ;
+
+"irc.freenode.org" 8001 "factor-irc" f ! server port nick password
+{ "#concatenative" "#terrorisland" } ! all the channels you want to autojoin
+server-open
diff --git a/extra/irc/ui/load/load.factor b/extra/irc/ui/load/load.factor
new file mode 100755
index 0000000000..e6f4d07b56
--- /dev/null
+++ b/extra/irc/ui/load/load.factor
@@ -0,0 +1,16 @@
+! Copyright (C) 2008 William Schlieper
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: kernel io.files parser editors sequences ;
+
+IN: irc.ui.load
+
+: file-or ( path path -- path ) [ [ exists? ] keep ] dip ? ;
+
+: personal-ui-rc ( -- path ) home ".ircui-rc" append-path ;
+
+: system-ui-rc ( -- path ) "extra/irc/ui/ircui-rc" resource-path ;
+
+: ircui-rc ( -- path ) personal-ui-rc system-ui-rc file-or ;
+
+: run-ircui ( -- ) ircui-rc run-file ;
diff --git a/extra/irc/ui/summary.txt b/extra/irc/ui/summary.txt
new file mode 100755
index 0000000000..284672b951
--- /dev/null
+++ b/extra/irc/ui/summary.txt
@@ -0,0 +1 @@
+A simple IRC client
\ No newline at end of file
diff --git a/extra/irc/ui/ui.factor b/extra/irc/ui/ui.factor
new file mode 100755
index 0000000000..457a984820
--- /dev/null
+++ b/extra/irc/ui/ui.factor
@@ -0,0 +1,247 @@
+! Copyright (C) 2008 William Schlieper
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: accessors kernel threads combinators concurrency.mailboxes
+       sequences strings hashtables splitting fry assocs hashtables colors
+       sorting qualified unicode.collation math.order
+       ui ui.gadgets ui.gadgets.panes ui.gadgets.editors
+       ui.gadgets.scrollers ui.commands ui.gadgets.frames ui.gestures
+       ui.gadgets.tabs ui.gadgets.grids ui.gadgets.packs ui.gadgets.labels
+       io io.styles namespaces calendar calendar.format models continuations
+       irc.client irc.client.private irc.messages
+       irc.ui.commandparser irc.ui.load ;
+
+RENAME: join sequences => sjoin
+
+IN: irc.ui
+
+SYMBOL: listener
+
+SYMBOL: client
+
+TUPLE: ui-window < tabbed client ;
+
+M: ui-window ungraft*
+    client>> terminate-irc ;
+
+TUPLE: irc-tab < frame listener client window ;
+
+: write-color ( str color -- )
+    foreground associate format ;
+: dark-red T{ rgba f 0.5 0.0 0.0 1 } ;
+: dark-green T{ rgba f 0.0 0.5 0.0 1 } ;
+
+: dot-or-parens ( string -- string )
+    [ "." ]
+    [ "(" prepend ")" append ] if-empty ;
+
+GENERIC: write-irc ( irc-message -- )
+
+M: ping write-irc
+    drop "* Ping" blue write-color ;
+
+M: privmsg write-irc
+    "<" blue write-color
+    [ irc-message-sender write ] keep
+    "> " blue write-color
+    trailing>> write ;
+
+M: notice write-irc
+    [ type>> blue write-color ] keep
+    ": " blue write-color
+    trailing>> write ;
+
+TUPLE: own-message message nick timestamp ;
+
+: <own-message> ( message nick -- own-message )
+    now own-message boa ;
+
+M: own-message write-irc
+    "<" blue write-color
+    [ nick>> bold font-style associate format ] keep
+    "> " blue write-color
+    message>> write ;
+
+M: join write-irc
+    "* " dark-green write-color
+    irc-message-sender write
+    " has entered the channel." dark-green write-color ;
+
+M: part write-irc
+    "* " dark-red write-color
+    [ irc-message-sender write ] keep
+    " has left the channel" dark-red write-color
+    trailing>> dot-or-parens dark-red write-color ;
+
+M: quit write-irc
+    "* " dark-red write-color
+    [ irc-message-sender write ] keep
+    " has left IRC" dark-red write-color
+    trailing>> dot-or-parens dark-red write-color ;
+
+M: kick write-irc
+    "* " dark-red write-color
+    [ irc-message-sender write ] keep
+    " has kicked " dark-red write-color
+    [ who>> write ] keep
+    " from the channel" dark-red write-color
+    trailing>> dot-or-parens dark-red write-color ;
+
+: full-mode ( message -- mode )
+    parameters>> rest " " sjoin ;
+
+M: mode write-irc
+    "* " blue write-color
+    [ irc-message-sender write ] keep
+    " has applied mode " blue write-color
+    [ full-mode write ] keep
+    " to " blue write-color
+    channel>> write ;
+
+M: nick write-irc
+    "* " blue write-color
+    [ irc-message-sender write ] keep
+    " is now known as " blue write-color
+    trailing>> write ;
+
+M: unhandled write-irc
+    "UNHANDLED: " write
+    line>> blue write-color ;
+
+M: irc-end write-irc
+    drop "* You have left IRC" dark-red write-color ;
+
+M: irc-disconnected write-irc
+    drop "* Disconnected" dark-red write-color ;
+
+M: irc-connected write-irc
+    drop "* Connected" dark-green write-color ;
+
+M: irc-listener-end write-irc
+    drop ;
+
+M: irc-message write-irc
+    drop ; ! catch all unimplemented writes, THIS WILL CHANGE    
+
+GENERIC: time-happened ( message -- timestamp )
+
+M: irc-message time-happened timestamp>> ;
+
+M: object time-happened drop now ;
+
+: print-irc ( irc-message -- )
+    [ time-happened timestamp>hms write " " write ]
+    [ write-irc nl ] bi ;
+
+: send-message ( message -- )
+    [ print-irc ]
+    [ listener get write-message ] bi ;
+
+GENERIC: handle-inbox ( tab message -- )
+
+: value-labels ( assoc val -- seq )
+    '[ nip , = ] assoc-filter keys sort-strings [ <label> ] map ;
+
+: add-gadget-color ( pack seq color -- pack )
+    '[ , >>color add-gadget ] each ;
+
+M: object handle-inbox
+    nip print-irc ;
+
+: display ( stream tab -- )
+    '[ , [ [ t ]
+           [ , dup listener>> read-message handle-inbox ]
+           [  ] while ] with-output-stream ] "ircv" spawn drop ;
+
+: <irc-pane> ( tab -- tab pane )
+    <scrolling-pane>
+    [ <pane-stream> swap display ] 2keep ;
+
+TUPLE: irc-editor < editor outstream tab ;
+
+: <irc-editor> ( tab pane -- tab editor )
+    irc-editor new-editor
+    swap <pane-stream> >>outstream ;
+
+: editor-send ( irc-editor -- )
+    { [ outstream>> ]
+      [ [ irc-tab? ] find-parent ]
+      [ editor-string ]
+      [ "" swap set-editor-string ] } cleave
+     '[ , irc-tab set , parse-message ] with-output-stream ;
+
+irc-editor "general" f {
+    { T{ key-down f f "RET" } editor-send }
+    { T{ key-down f f "ENTER" } editor-send }
+} define-command-map
+
+: new-irc-tab ( listener ui-window class -- irc-tab )
+    new-frame
+    swap >>window
+    swap >>listener
+    <irc-pane> [ <scroller> @center grid-add ] keep
+    <irc-editor> <scroller> @bottom grid-add ;
+
+M: irc-tab graft*
+    [ listener>> ] [ window>> client>> ] bi add-listener ;
+
+M: irc-tab ungraft*
+    [ listener>> ] [ window>> client>> ] bi remove-listener ;
+
+TUPLE: irc-channel-tab < irc-tab userlist ;
+
+: <irc-channel-tab> ( listener ui-window -- irc-tab )
+    irc-channel-tab new-irc-tab
+    <pile> [ <scroller> @right grid-add ] keep >>userlist ;
+
+: update-participants ( tab -- )
+    [ userlist>> [ clear-gadget ] keep ]
+    [ listener>> participants>> ] bi
+    [ +operator+ value-labels dark-green add-gadget-color ]
+    [ +voice+ value-labels blue add-gadget-color ]
+    [ +normal+ value-labels black add-gadget-color ] tri drop ;
+
+M: participant-changed handle-inbox
+    drop update-participants ;
+
+TUPLE: irc-server-tab < irc-tab ;
+
+: <irc-server-tab> ( listener -- irc-tab )
+    f irc-server-tab new-irc-tab ;
+
+: <irc-nick-tab> ( listener ui-window -- irc-tab )
+    irc-tab new-irc-tab ;
+
+M: irc-tab pref-dim*
+    drop { 480 480 } ;
+
+: join-channel ( name ui-window -- )
+    [ dup <irc-channel-listener> ] dip
+    [ <irc-channel-tab> swap ] keep
+    add-page ;
+
+: query-nick ( nick ui-window -- )
+    [ dup <irc-nick-listener> ] dip
+    [ <irc-nick-tab> swap ] keep
+    add-page ;
+
+: irc-window ( ui-window -- )
+    [ ]
+    [ client>> profile>> server>> ] bi
+    open-window ;
+
+: ui-connect ( profile -- ui-window )
+    <irc-client>
+    { [ [ <irc-server-listener> ] dip add-listener ]
+      [ listeners>> +server-listener+ swap at <irc-server-tab> dup
+        "Server" associate ui-window new-tabbed [ swap (>>window) ] keep ]
+      [ >>client ]
+      [ connect-irc ] } cleave ;
+
+: server-open ( server port nick password channels -- )
+    [ <irc-profile> ui-connect [ irc-window ] keep ] dip
+    [ over join-channel ] each drop ;
+
+: main-run ( -- ) run-ircui ;
+
+MAIN: main-run
diff --git a/extra/joystick-demo/authors.txt b/extra/joystick-demo/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/joystick-demo/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/joystick-demo/deploy.factor b/extra/joystick-demo/deploy.factor
new file mode 100644
index 0000000000..8843ae66f3
--- /dev/null
+++ b/extra/joystick-demo/deploy.factor
@@ -0,0 +1,15 @@
+USING: tools.deploy.config ;
+H{
+    { deploy-name "joystick-demo" }
+    { deploy-io 2 }
+    { deploy-word-defs? f }
+    { deploy-c-types? t }
+    { deploy-random? t }
+    { deploy-word-props? f }
+    { deploy-reflection 1 }
+    { deploy-threads? t }
+    { deploy-math? t }
+    { "stop-after-last-window?" t }
+    { deploy-ui? t }
+    { deploy-compiler? t }
+}
diff --git a/extra/joystick-demo/joystick-demo.factor b/extra/joystick-demo/joystick-demo.factor
new file mode 100755
index 0000000000..b5289dbcbf
--- /dev/null
+++ b/extra/joystick-demo/joystick-demo.factor
@@ -0,0 +1,145 @@
+USING: ui ui.gadgets sequences kernel arrays math colors
+ui.render math.vectors accessors fry ui.gadgets.packs game-input
+ui.gadgets.labels ui.gadgets.borders alarms
+calendar locals combinators.lib strings ui.gadgets.buttons
+combinators math.parser assocs threads ;
+IN: joystick-demo
+
+: SIZE { 151 151 } ;
+: INDICATOR-SIZE { 4 4 } ;
+: FREQUENCY ( -- f ) 30 recip seconds ;
+
+TUPLE: axis-gadget < gadget indicator z-indicator pov ;
+
+M: axis-gadget pref-dim* drop SIZE ;
+
+: (rect-polygon) ( lo hi -- polygon )
+    2dup
+    [ [ second ] [ first  ] bi* swap 2array ]
+    [ [ first  ] [ second ] bi*      2array ] 2bi swapd 4array ;
+
+: indicator-polygon ( -- polygon )
+    { 0 0 } INDICATOR-SIZE (rect-polygon) ;
+
+: pov-polygons
+    V{
+        { pov-neutral    { { 70 75 } { 75 70 } { 80 75 } { 75 80 } } }
+        { pov-up         { { 70 65 } { 75 60 } { 80 65 } } }
+        { pov-up-right   { { 83 60 } { 90 60 } { 90 67 } } }
+        { pov-right      { { 85 70 } { 90 75 } { 85 80 } } }
+        { pov-down-right { { 90 83 } { 90 90 } { 83 90 } } }
+        { pov-down       { { 70 85 } { 75 90 } { 80 85 } } }
+        { pov-down-left  { { 67 90 } { 60 90 } { 60 83 } } }
+        { pov-left       { { 65 70 } { 60 75 } { 65 80 } } }
+        { pov-up-left    { { 67 60 } { 60 60 } { 60 67 } } }
+    } ;
+
+: <indicator-gadget> ( color -- indicator )
+    indicator-polygon <polygon-gadget> ;
+
+: (>loc) ( axisloc -- windowloc )
+    0.5 v*n { 0.5 0.5 } v+ SIZE v* [ >integer ] map
+    INDICATOR-SIZE 2 v/n v- ;
+
+: (xy>loc) ( x y -- xyloc )
+    2array (>loc) ;
+: (z>loc) ( z -- zloc )
+    0.0 swap 2array (>loc) ;
+
+: (xyz>loc) ( x y z -- xyloc zloc )
+    [ [ 0.0 ] unless* ] tri@
+    [ (xy>loc) ] dip (z>loc) ;
+
+: move-axis ( gadget x y z -- )
+    (xyz>loc) rot
+    [ indicator>>   (>>loc) ]
+    [ z-indicator>> (>>loc) ] bi, bi* ;
+
+: move-pov ( gadget pov -- )
+    swap pov>> [ interior>> -rot = [ gray ] [ white ] if >>color drop ]
+    with assoc-each ;
+
+:: add-pov-gadget ( gadget direction polygon -- gadget direction gadget )
+    gadget white polygon <polygon-gadget> [ add-gadget ] keep
+    direction swap ;
+
+: add-pov-gadgets ( gadget -- gadget )
+    pov-polygons [ add-pov-gadget ] assoc-map >>pov ;
+
+: <axis-gadget> ( -- gadget )
+    axis-gadget new-gadget
+    add-pov-gadgets
+    black <indicator-gadget> [ >>z-indicator ] [ add-gadget ] bi
+    red   <indicator-gadget> [ >>indicator   ] [ add-gadget ] bi
+    dup [ 0.0 0.0 0.0 move-axis ] [ f move-pov ] bi ;
+
+TUPLE: joystick-demo-gadget < pack axis raxis controller buttons alarm ;
+
+: add-gadget-with-border ( parent child -- parent )
+    2 <border> gray <solid> >>boundary add-gadget ;
+
+: add-controller-label ( gadget controller -- gadget )
+    [ >>controller ] [ product-string <label> add-gadget ] bi ;
+
+: add-axis-gadget ( gadget shelf -- gadget shelf )
+    <axis-gadget> [ >>axis ] [ add-gadget-with-border ] bi, bi* ;
+
+: add-raxis-gadget ( gadget shelf -- gadget shelf )
+    <axis-gadget> [ >>raxis ] [ add-gadget-with-border ] bi, bi* ;
+
+:: (add-button-gadgets) ( gadget shelf -- )
+    gadget controller>> read-controller buttons>> length [
+        number>string [ ] <bevel-button>
+        shelf over add-gadget drop
+    ] map gadget (>>buttons) ;
+
+: add-button-gadgets ( gadget shelf -- gadget shelf )
+    [ (add-button-gadgets) ] 2keep ;
+
+: <joystick-demo-gadget> ( controller -- gadget )
+    joystick-demo-gadget new-gadget
+    { 0 1 } >>orientation
+    swap add-controller-label
+    <shelf> add-axis-gadget add-raxis-gadget add-gadget
+    <shelf> add-button-gadgets add-gadget ;
+
+: update-buttons ( buttons button-states -- )
+    [ >>selected? drop ] 2each ;
+
+: kill-update-axes ( gadget -- )
+    gray <solid> >>interior
+    [ [ cancel-alarm ] when* f ] change-alarm
+    relayout-1 ;
+
+: (update-axes) ( gadget controller-state -- )
+    {
+        [ [ axis>>  ] [ [ x>>  ] [ y>>  ] [ z>>  ] tri ] bi* move-axis ]
+        [ [ raxis>> ] [ [ rx>> ] [ ry>> ] [ rz>> ] tri ] bi* move-axis ]
+        [ [ axis>>  ] [ pov>> ] bi* move-pov ]
+        [ [ buttons>> ] [ buttons>> ] bi* update-buttons ]
+        [ drop relayout-1 ]
+    } 2cleave ;
+
+: update-axes ( gadget -- )
+    dup controller>> read-controller
+    [ (update-axes) ] [ kill-update-axes ] if* ;
+
+M: joystick-demo-gadget graft*
+    dup '[ , update-axes ] FREQUENCY every >>alarm
+    drop ;
+
+M: joystick-demo-gadget ungraft*
+    alarm>> [ cancel-alarm ] when* ;
+
+: joystick-window ( controller -- )
+    [ <joystick-demo-gadget> ] [ product-string ] bi
+    open-window ;
+
+: joystick-demo ( -- )
+    [
+        open-game-input
+        0.1 seconds sleep ! It might take a moment to find devices...
+        get-controllers [ joystick-window ] each
+    ] with-ui ;
+
+MAIN: joystick-demo
diff --git a/extra/joystick-demo/summary.txt b/extra/joystick-demo/summary.txt
new file mode 100644
index 0000000000..e10653cafa
--- /dev/null
+++ b/extra/joystick-demo/summary.txt
@@ -0,0 +1 @@
+Demonstrate gamepad and joystick input
diff --git a/extra/joystick-demo/tags.txt b/extra/joystick-demo/tags.txt
new file mode 100644
index 0000000000..4d4417f0b8
--- /dev/null
+++ b/extra/joystick-demo/tags.txt
@@ -0,0 +1,2 @@
+gamepads
+joysticks
diff --git a/extra/key-caps/authors.txt b/extra/key-caps/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/key-caps/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/key-caps/key-caps.factor b/extra/key-caps/key-caps.factor
new file mode 100755
index 0000000000..e14a46a967
--- /dev/null
+++ b/extra/key-caps/key-caps.factor
@@ -0,0 +1,180 @@
+USING: game-input game-input.scancodes
+kernel ui.gadgets ui.gadgets.buttons sequences accessors
+words arrays assocs math calendar fry alarms ui
+ui.gadgets.borders ui.gestures ;
+IN: key-caps
+
+: key-locations H{
+    { key-escape        { {   0   0 } {  10  10 } } }
+
+    { key-f1            { {  20   0 } {  10  10 } } }
+    { key-f2            { {  30   0 } {  10  10 } } }
+    { key-f3            { {  40   0 } {  10  10 } } }
+    { key-f4            { {  50   0 } {  10  10 } } }
+
+    { key-f5            { {  65   0 } {  10  10 } } }
+    { key-f6            { {  75   0 } {  10  10 } } }
+    { key-f7            { {  85   0 } {  10  10 } } }
+    { key-f8            { {  95   0 } {  10  10 } } }
+
+    { key-f9            { { 110   0 } {  10  10 } } }
+    { key-f10           { { 120   0 } {  10  10 } } }
+    { key-f11           { { 130   0 } {  10  10 } } }
+    { key-f12           { { 140   0 } {  10  10 } } }
+
+
+    { key-`             { {   0  15 } {  10  10 } } }
+    { key-1             { {  10  15 } {  10  10 } } }
+    { key-2             { {  20  15 } {  10  10 } } }
+    { key-3             { {  30  15 } {  10  10 } } }
+    { key-4             { {  40  15 } {  10  10 } } }
+    { key-5             { {  50  15 } {  10  10 } } }
+    { key-6             { {  60  15 } {  10  10 } } }
+    { key-7             { {  70  15 } {  10  10 } } }
+    { key-8             { {  80  15 } {  10  10 } } }
+    { key-9             { {  90  15 } {  10  10 } } }
+    { key-0             { { 100  15 } {  10  10 } } }
+    { key--             { { 110  15 } {  10  10 } } }
+    { key-=             { { 120  15 } {  10  10 } } }
+    { key-backspace     { { 130  15 } {  20  10 } } }
+
+    { key-tab           { {   0  25 } {  15  10 } } }
+    { key-q             { {  15  25 } {  10  10 } } }
+    { key-w             { {  25  25 } {  10  10 } } }
+    { key-e             { {  35  25 } {  10  10 } } }
+    { key-r             { {  45  25 } {  10  10 } } }
+    { key-t             { {  55  25 } {  10  10 } } }
+    { key-y             { {  65  25 } {  10  10 } } }
+    { key-u             { {  75  25 } {  10  10 } } }
+    { key-i             { {  85  25 } {  10  10 } } }
+    { key-o             { {  95  25 } {  10  10 } } }
+    { key-p             { { 105  25 } {  10  10 } } }
+    { key-[             { { 115  25 } {  10  10 } } }
+    { key-]             { { 125  25 } {  10  10 } } }
+    { key-\             { { 135  25 } {  15  10 } } }
+
+    { key-caps-lock     { {   0  35 } {  20  10 } } }
+    { key-a             { {  20  35 } {  10  10 } } }
+    { key-s             { {  30  35 } {  10  10 } } }
+    { key-d             { {  40  35 } {  10  10 } } }
+    { key-f             { {  50  35 } {  10  10 } } }
+    { key-g             { {  60  35 } {  10  10 } } }
+    { key-h             { {  70  35 } {  10  10 } } }
+    { key-j             { {  80  35 } {  10  10 } } }
+    { key-k             { {  90  35 } {  10  10 } } }
+    { key-l             { { 100  35 } {  10  10 } } }
+    { key-;             { { 110  35 } {  10  10 } } }
+    { key-'             { { 120  35 } {  10  10 } } }
+    { key-return        { { 130  35 } {  20  10 } } }
+
+    { key-left-shift    { {   0  45 } {  25  10 } } }
+    { key-z             { {  25  45 } {  10  10 } } }
+    { key-x             { {  35  45 } {  10  10 } } }
+    { key-c             { {  45  45 } {  10  10 } } }
+    { key-v             { {  55  45 } {  10  10 } } }
+    { key-b             { {  65  45 } {  10  10 } } }
+    { key-n             { {  75  45 } {  10  10 } } }
+    { key-m             { {  85  45 } {  10  10 } } }
+    { key-,             { {  95  45 } {  10  10 } } }
+    { key-.             { { 105  45 } {  10  10 } } }
+    { key-/             { { 115  45 } {  10  10 } } }
+    { key-right-shift   { { 125  45 } {  25  10 } } }
+
+    { key-left-control  { {   0  55 } {  15  10 } } }
+    { key-left-gui      { {  15  55 } {  15  10 } } }
+    { key-left-alt      { {  30  55 } {  15  10 } } }
+    { key-space         { {  45  55 } {  45  10 } } }
+    { key-right-alt     { {  90  55 } {  15  10 } } }
+    { key-right-gui     { { 105  55 } {  15  10 } } }
+    { key-application   { { 120  55 } {  15  10 } } }
+    { key-right-control { { 135  55 } {  15  10 } } }
+
+
+    { key-print-screen  { { 155   0 } {  10  10 } } }
+    { key-scroll-lock   { { 165   0 } {  10  10 } } }
+    { key-pause         { { 175   0 } {  10  10 } } }
+    
+    { key-insert        { { 155  15 } {  10  10 } } }
+    { key-home          { { 165  15 } {  10  10 } } }
+    { key-page-up       { { 175  15 } {  10  10 } } }
+
+    { key-delete        { { 155  25 } {  10  10 } } }
+    { key-end           { { 165  25 } {  10  10 } } }
+    { key-page-down     { { 175  25 } {  10  10 } } }
+
+    { key-up-arrow      { { 165  45 } {  10  10 } } }
+    { key-left-arrow    { { 155  55 } {  10  10 } } }
+    { key-down-arrow    { { 165  55 } {  10  10 } } }
+    { key-right-arrow   { { 175  55 } {  10  10 } } }
+
+
+    { key-keypad-numlock { { 190 15 } {  10  10 } } }
+    { key-keypad-/       { { 200 15 } {  10  10 } } }
+    { key-keypad-*       { { 210 15 } {  10  10 } } }
+    { key-keypad--       { { 220 15 } {  10  10 } } }
+
+    { key-keypad-7       { { 190 25 } {  10  10 } } }
+    { key-keypad-8       { { 200 25 } {  10  10 } } }
+    { key-keypad-9       { { 210 25 } {  10  10 } } }
+    { key-keypad-+       { { 220 25 } {  10  20 } } }
+
+    { key-keypad-4       { { 190 35 } {  10  10 } } }
+    { key-keypad-5       { { 200 35 } {  10  10 } } }
+    { key-keypad-6       { { 210 35 } {  10  10 } } }
+
+    { key-keypad-1       { { 190 45 } {  10  10 } } }
+    { key-keypad-2       { { 200 45 } {  10  10 } } }
+    { key-keypad-3       { { 210 45 } {  10  10 } } }
+    { key-keypad-enter   { { 220 45 } {  10  20 } } }
+
+    { key-keypad-0       { { 190 55 } {  20  10 } } }
+    { key-keypad-.       { { 210 55 } {  10  10 } } }
+} ;
+
+: KEYBOARD-SIZE { 230 65 } ;
+: FREQUENCY ( -- f ) 30 recip seconds ;
+
+TUPLE: key-caps-gadget < gadget keys alarm ;
+
+: make-key-gadget ( scancode dim array -- )
+    [ 
+        swap [ 
+            " " [ ] <bevel-button>
+            swap [ first >>loc ] [ second >>dim ] bi
+        ] [ execute ] bi*
+    ] dip set-nth ;
+
+: add-keys-gadgets ( gadget -- gadget )
+    key-locations 256 f <array>
+    [ [ make-key-gadget ] curry assoc-each ]
+    [ [ [ add-gadget ] when* ] each ] 
+    [ >>keys ] tri ;
+
+: <key-caps-gadget> ( -- gadget )
+    key-caps-gadget new-gadget
+    add-keys-gadgets ;
+
+M: key-caps-gadget pref-dim* drop KEYBOARD-SIZE ;
+
+: update-key-caps-state ( gadget -- )
+    read-keyboard keys>> over keys>> 
+    [ [ (>>selected?) ] [ drop ] if* ] 2each 
+    relayout-1 ;
+
+M: key-caps-gadget graft*
+    dup '[ , update-key-caps-state ] FREQUENCY every >>alarm
+    drop ;
+
+M: key-caps-gadget ungraft*
+    alarm>> [ cancel-alarm ] when* ;
+
+M: key-caps-gadget handle-gesture
+    drop [ key-down? ] [ key-up? ] bi or not ;
+
+: key-caps ( -- )
+    [
+        open-game-input
+        <key-caps-gadget> 5 <border> "Key Caps" open-window
+    ] with-ui ;
+
+MAIN: key-caps
diff --git a/extra/key-caps/summary.txt b/extra/key-caps/summary.txt
new file mode 100644
index 0000000000..f7d7a2c67c
--- /dev/null
+++ b/extra/key-caps/summary.txt
@@ -0,0 +1 @@
+Graphical keyboard diagram
diff --git a/extra/key-caps/tags.txt b/extra/key-caps/tags.txt
new file mode 100644
index 0000000000..c253983475
--- /dev/null
+++ b/extra/key-caps/tags.txt
@@ -0,0 +1 @@
+keyboard
diff --git a/extra/koszul/koszul.factor b/extra/koszul/koszul.factor
index 4194ff6609..5bd679d92a 100755
--- a/extra/koszul/koszul.factor
+++ b/extra/koszul/koszul.factor
@@ -1,13 +1,13 @@
 ! Copyright (C) 2006, 2007 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs hashtables assocs io kernel math
+USING: accessors arrays assocs hashtables assocs io kernel math
 math.vectors math.matrices math.matrices.elimination namespaces
 parser prettyprint sequences words combinators math.parser
 splitting sorting shuffle symbols sets math.order ;
 IN: koszul
 
 ! Utilities
-: -1^ odd? -1 1 ? ;
+: -1^ ( m -- n ) odd? -1 1 ? ;
 
 : >alt ( obj -- vec )
     {
@@ -18,7 +18,7 @@ IN: koszul
         [ 1array >alt ]
     } cond ;
 
-: canonicalize
+: canonicalize ( assoc -- assoc' )
     [ nip zero? not ] assoc-filter ;
 
 SYMBOL: terms
@@ -41,7 +41,7 @@ SYMBOL: terms
         nip number>string
     ] [
         num-alt.
-        swap [ word-name ] map "." join
+        swap [ name>> ] map "." join
         append
     ] if ;
 
@@ -115,8 +115,7 @@ DEFER: (d)
 : x.dy ( x y -- vec ) (d) wedge -1 alt*n ;
 
 : (d) ( product -- value )
-    dup empty?
-    [ drop H{ } ] [ unclip swap [ x.dy ] 2keep dx.y alt+ ] if ;
+    [ H{ } ] [ unclip swap [ x.dy ] 2keep dx.y alt+ ] if-empty ;
 
 : linear-op ( vec quot -- vec )
         [
@@ -142,7 +141,7 @@ DEFER: (d)
 
 ! Computing a basis
 : graded ( seq -- seq )
-    dup 0 [ length max ] reduce 1+ [ drop V{ } clone ] map
+    dup 0 [ length max ] reduce 1+ [ V{ } clone ] replicate
     [ dup length pick nth push ] reduce ;
 
 : nth-basis-elt ( generators n -- elt )
@@ -184,7 +183,7 @@ DEFER: (d)
     [ length ] keep [ (graded-ker/im-d) ] curry map ;
 
 : graded-betti ( generators -- seq )
-    basis graded graded-ker/im-d flip first2 but-last 0 prefix v- ;
+    basis graded graded-ker/im-d unzip but-last 0 prefix v- ;
 
 ! Bi-graded for two-step complexes
 : (bigraded-ker/im-d) ( u-deg z-deg bigraded-basis -- null/rank )
@@ -207,11 +206,11 @@ DEFER: (d)
     [ v- ] 2map ;
 
 ! Laplacian
-: m.m' dup flip m. ;
-: m'.m dup flip swap m. ;
+: m.m' ( matrix -- matrix' ) dup flip m. ;
+: m'.m ( matrix -- matrix' ) dup flip swap m. ;
 
 : empty-matrix? ( matrix -- ? )
-    dup empty? [ drop t ] [ first empty? ] if ;
+    [ t ] [ first empty? ] if-empty ;
 
 : ?m+ ( m1 m2 -- m3 )
     over empty-matrix? [
@@ -257,17 +256,18 @@ DEFER: (d)
     [ laplacian-kernel ] graded-laplacian ;
 
 : graded-basis. ( seq -- )
-    dup length [
+    [
         "=== Degree " write pprint
         ": dimension " write dup length .
         [ alt. ] each
-    ] 2each ;
+    ] each-index ;
 
 : bigraded-triple ( u-deg z-deg bigraded-basis -- triple )
     #! d: C(u,z) ---> C(u+2,z-1)
-    [ >r >r 2 - r> 1 + r> ?nth ?nth ] 3keep
-    [ ?nth ?nth ] 3keep
-    >r >r 2 + r> 1 - r> ?nth ?nth
+    [ [ 2 - ] [ 1 + ] [ ] tri* ?nth ?nth ] 
+    [ ?nth ?nth ] 
+    [ [ 2 + ] [ 1 - ] [ ] tri* ?nth ?nth ]
+    3tri
     3array ;
 
 : bigraded-triples ( grid -- triples )
@@ -288,11 +288,11 @@ DEFER: (d)
     [ laplacian-kernel ] bigraded-laplacian ;
 
 : bigraded-basis. ( seq -- )
-    dup length [
+    [
         "=== U-degree " write .
-        dup length [
+        [
             "  === Z-degree " write pprint
             ": dimension " write dup length .
             [ "  " write alt. ] each
-        ] 2each
-    ] 2each ;
+        ] each-index
+    ] each-index ;
diff --git a/extra/lazy-lists/examples/examples.factor b/extra/lazy-lists/examples/examples.factor
deleted file mode 100644
index 844ae31085..0000000000
--- a/extra/lazy-lists/examples/examples.factor
+++ /dev/null
@@ -1,15 +0,0 @@
-! Rewritten by Matthew Willis, July 2006
-! Copyright (C) 2004 Chris Double.
-! See http://factorcode.org/license.txt for BSD license.
-
-USING: lazy-lists math kernel sequences quotations ;
-IN: lazy-lists.examples
-
-: naturals 0 lfrom ;
-: positives 1 lfrom ;
-: evens 0 [ 2 + ] lfrom-by ;
-: odds 1 lfrom [ 2 mod 1 = ] lfilter ;
-: powers-of-2 1 [ 2 * ] lfrom-by ;
-: ones 1 [ ] lfrom-by ;
-: squares naturals [ dup * ] lmap ;
-: first-five-squares 5 squares ltake list>array ;
diff --git a/extra/lazy-lists/lazy-lists.factor b/extra/lazy-lists/lazy-lists.factor
deleted file mode 100644
index 6db82ed2c1..0000000000
--- a/extra/lazy-lists/lazy-lists.factor
+++ /dev/null
@@ -1,445 +0,0 @@
-! Copyright (C) 2004 Chris Double.
-! See http://factorcode.org/license.txt for BSD license.
-!
-! Updated by Matthew Willis, July 2006
-! Updated by Chris Double, September 2006
-!
-USING: kernel sequences math vectors arrays namespaces
-quotations promises combinators io ;
-IN: lazy-lists
-
-! Lazy List Protocol
-MIXIN: list
-GENERIC: car   ( cons -- car )
-GENERIC: cdr   ( cons -- cdr )
-GENERIC: nil?  ( cons -- ? )
-
-M: promise car ( promise -- car )
-  force car ;
-
-M: promise cdr ( promise -- cdr )
-  force cdr ;
-
-M: promise nil? ( cons -- bool )
-  force nil? ;
-
-TUPLE: cons car cdr ;
-
-C: cons cons
-
-M: cons car ( cons -- car )
-    cons-car ;
-
-M: cons cdr ( cons -- cdr )
-    cons-cdr ;
-
-: nil ( -- cons )
-  T{ cons f f f } ;
-
-M: cons nil? ( cons -- bool )
-    nil eq? ;
-
-: 1list ( obj -- cons )
-    nil cons ;
-
-: 2list ( a b -- cons )
-    nil cons cons ;
-
-: 3list ( a b c -- cons )
-    nil cons cons cons ;
-
-! Both 'car' and 'cdr' are promises
-TUPLE: lazy-cons car cdr ;
-
-: lazy-cons ( car cdr -- promise )
-    [ promise ] bi@ \ lazy-cons boa
-    T{ promise f f t f } clone
-    [ set-promise-value ] keep ;
-
-M: lazy-cons car ( lazy-cons -- car )
-    lazy-cons-car force ;
-
-M: lazy-cons cdr ( lazy-cons -- cdr )
-    lazy-cons-cdr force ;
-
-M: lazy-cons nil? ( lazy-cons -- bool )
-    nil eq? ;
-
-: 1lazy-list ( a -- lazy-cons )
-  [ nil ] lazy-cons ;
-
-: 2lazy-list ( a b -- lazy-cons )
-  1lazy-list 1quotation lazy-cons ;
-
-: 3lazy-list ( a b c -- lazy-cons )
-  2lazy-list 1quotation lazy-cons ;
-
-: lnth ( n list -- elt )
-  swap [ cdr ] times car ;
-
-: (llength) ( list acc -- n )
-  over nil? [ nip ] [ [ cdr ] dip 1+ (llength) ] if ;
-
-: llength ( list -- n )
-  0 (llength) ;
-
-: uncons ( cons -- car cdr )
-    #! Return the car and cdr of the lazy list
-    dup car swap cdr ;
-
-: leach ( list quot -- )
-  swap dup nil? [ 2drop ] [ uncons swapd over 2slip leach ] if ; inline
-
-: lreduce ( list identity quot -- result )
-  swapd leach ; inline
-
-TUPLE: memoized-cons original car cdr nil? ;
-
-: not-memoized ( -- obj )
-  { } ;
-
-: not-memoized? ( obj -- bool )
-  not-memoized eq? ;
-
-: <memoized-cons> ( cons -- memoized-cons )
-  not-memoized not-memoized not-memoized
-  memoized-cons boa ;
-
-M: memoized-cons car ( memoized-cons -- car )
-  dup memoized-cons-car not-memoized? [
-    dup memoized-cons-original car [ swap set-memoized-cons-car ] keep
-  ] [
-    memoized-cons-car
-  ] if ;
-
-M: memoized-cons cdr ( memoized-cons -- cdr )
-  dup memoized-cons-cdr not-memoized? [
-    dup memoized-cons-original cdr [ swap set-memoized-cons-cdr ] keep
-  ] [
-    memoized-cons-cdr
-  ] if ;
-
-M: memoized-cons nil? ( memoized-cons -- bool )
-  dup memoized-cons-nil? not-memoized? [
-    dup memoized-cons-original nil? [ swap set-memoized-cons-nil? ] keep
-  ] [
-    memoized-cons-nil?
-  ] if ;
-
-TUPLE: lazy-map cons quot ;
-
-C: <lazy-map> lazy-map
-
-: lmap ( list quot -- result )
-    over nil? [ 2drop nil ] [ <lazy-map> <memoized-cons> ] if ;
-
-M: lazy-map car ( lazy-map -- car )
-  [ lazy-map-cons car ] keep
-  lazy-map-quot call ;
-
-M: lazy-map cdr ( lazy-map -- cdr )
-  [ lazy-map-cons cdr ] keep
-  lazy-map-quot lmap ;
-
-M: lazy-map nil? ( lazy-map -- bool )
-  lazy-map-cons nil? ;
-
-: lmap-with ( value list quot -- result )
-  with lmap ;
-
-TUPLE: lazy-take n cons ;
-
-C: <lazy-take> lazy-take
-
-: ltake ( n list -- result )
-    over zero? [ 2drop nil ] [ <lazy-take> ] if ;
-
-M: lazy-take car ( lazy-take -- car )
-  lazy-take-cons car ;
-
-M: lazy-take cdr ( lazy-take -- cdr )
-  [ lazy-take-n 1- ] keep
-  lazy-take-cons cdr ltake ;
-
-M: lazy-take nil? ( lazy-take -- bool )
-  dup lazy-take-n zero? [
-    drop t
-  ] [
-    lazy-take-cons nil?
-  ] if ;
-
-TUPLE: lazy-until cons quot ;
-
-C: <lazy-until> lazy-until
-
-: luntil ( list quot -- result )
-  over nil? [ drop ] [ <lazy-until> ] if ;
-
-M: lazy-until car ( lazy-until -- car )
-   lazy-until-cons car ;
-
-M: lazy-until cdr ( lazy-until -- cdr )
-   [ lazy-until-cons uncons swap ] keep lazy-until-quot tuck call
-   [ 2drop nil ] [ luntil ] if ;
-
-M: lazy-until nil? ( lazy-until -- bool )
-   drop f ;
-
-TUPLE: lazy-while cons quot ;
-
-C: <lazy-while> lazy-while
-
-: lwhile ( list quot -- result )
-  over nil? [ drop ] [ <lazy-while> ] if ;
-
-M: lazy-while car ( lazy-while -- car )
-   lazy-while-cons car ;
-
-M: lazy-while cdr ( lazy-while -- cdr )
-   [ lazy-while-cons cdr ] keep lazy-while-quot lwhile ;
-
-M: lazy-while nil? ( lazy-while -- bool )
-   [ car ] keep lazy-while-quot call not ;
-
-TUPLE: lazy-filter cons quot ;
-
-C: <lazy-filter> lazy-filter
-
-: lfilter ( list quot -- result )
-    over nil? [ 2drop nil ] [ <lazy-filter> <memoized-cons> ] if ;
-
-: car-filter?  ( lazy-filter -- ? )
-  [ lazy-filter-cons car ] keep
-  lazy-filter-quot call ;
-
-: skip ( lazy-filter -- )
-  [ lazy-filter-cons cdr ] keep
-  set-lazy-filter-cons ;
-
-M: lazy-filter car ( lazy-filter -- car )
-  dup car-filter? [ lazy-filter-cons ] [ dup skip ] if car ;
-
-M: lazy-filter cdr ( lazy-filter -- cdr )
-  dup car-filter? [
-    [ lazy-filter-cons cdr ] keep
-    lazy-filter-quot lfilter
-  ] [
-    dup skip cdr
-  ] if ;
-
-M: lazy-filter nil? ( lazy-filter -- bool )
-  dup lazy-filter-cons nil? [
-    drop t
-  ] [
-    dup car-filter? [
-      drop f
-    ] [
-      dup skip nil?
-    ] if
-  ] if ;
-
-: list>vector ( list -- vector )
-  [ [ , ] leach ] V{ } make ;
-
-: list>array ( list -- array )
-  [ [ , ] leach ] { } make ;
-
-TUPLE: lazy-append list1 list2 ;
-
-C: <lazy-append> lazy-append
-
-: lappend ( list1 list2 -- result )
-  over nil? [ nip ] [ <lazy-append> ] if ;
-
-M: lazy-append car ( lazy-append -- car )
-  lazy-append-list1 car ;
-
-M: lazy-append cdr ( lazy-append -- cdr )
-  [ lazy-append-list1 cdr  ] keep
-  lazy-append-list2 lappend ;
-
-M: lazy-append nil? ( lazy-append -- bool )
-   drop f ;
-
-TUPLE: lazy-from-by n quot ;
-
-C: lfrom-by lazy-from-by ( n quot -- list )
-
-: lfrom ( n -- list )
-  [ 1+ ] lfrom-by ;
-
-M: lazy-from-by car ( lazy-from-by -- car )
-  lazy-from-by-n ;
-
-M: lazy-from-by cdr ( lazy-from-by -- cdr )
-  [ lazy-from-by-n ] keep
-  lazy-from-by-quot dup slip lfrom-by ;
-
-M: lazy-from-by nil? ( lazy-from-by -- bool )
-  drop f ;
-
-TUPLE: lazy-zip list1 list2 ;
-
-C: <lazy-zip> lazy-zip
-
-: lzip ( list1 list2 -- lazy-zip )
-    over nil? over nil? or
-    [ 2drop nil ] [ <lazy-zip> ] if ;
-
-M: lazy-zip car ( lazy-zip -- car )
-    [ lazy-zip-list1 car ] keep lazy-zip-list2 car 2array ;
-
-M: lazy-zip cdr ( lazy-zip -- cdr )
-    [ lazy-zip-list1 cdr ] keep lazy-zip-list2 cdr lzip ;
-
-M: lazy-zip nil? ( lazy-zip -- bool )
-    drop f ;
-
-TUPLE: sequence-cons index seq ;
-
-C: <sequence-cons> sequence-cons
-
-: seq>list ( index seq -- list )
-  2dup length >= [
-    2drop nil
-  ] [
-    <sequence-cons>
-  ] if ;
-
-M: sequence-cons car ( sequence-cons -- car )
-  [ sequence-cons-index ] keep
-  sequence-cons-seq nth ;
-
-M: sequence-cons cdr ( sequence-cons -- cdr )
-  [ sequence-cons-index 1+ ] keep
-  sequence-cons-seq seq>list ;
-
-M: sequence-cons nil? ( sequence-cons -- bool )
-    drop f ;
-
-: >list ( object -- list )
-  {
-    { [ dup sequence? ] [ 0 swap seq>list ] }
-    { [ dup list?     ] [ ] }
-    [ "Could not convert object to a list" throw ]
-  } cond ;
-
-TUPLE: lazy-concat car cdr ;
-
-C: <lazy-concat> lazy-concat
-
-DEFER: lconcat
-
-: (lconcat) ( car cdr -- list )
-  over nil? [
-    nip lconcat
-  ] [
-    <lazy-concat>
-  ] if ;
-
-: lconcat ( list -- result )
-  dup nil? [
-    drop nil
-  ] [
-    uncons (lconcat)
-  ] if ;
-
-M: lazy-concat car ( lazy-concat -- car )
-  lazy-concat-car car ;
-
-M: lazy-concat cdr ( lazy-concat -- cdr )
-  [ lazy-concat-car cdr ] keep lazy-concat-cdr (lconcat) ;
-
-M: lazy-concat nil? ( lazy-concat -- bool )
-  dup lazy-concat-car nil? [
-    lazy-concat-cdr nil?
-  ] [
-    drop f
-  ] if ;
-
-: lcartesian-product ( list1 list2 -- result )
-  swap [ swap [ 2array ] lmap-with ] lmap-with lconcat ;
-
-: lcartesian-product* ( lists -- result )
-  dup nil? [
-    drop nil
-  ] [
-    [ car ] keep cdr [ car lcartesian-product ] keep cdr list>array swap [
-      swap [ swap [ suffix ] lmap-with ] lmap-with lconcat
-    ] reduce
-  ] if ;
-
-: lcomp ( list quot -- result )
-  [ lcartesian-product* ] dip lmap ;
-
-: lcomp* ( list guards quot -- result )
-  [ [ lcartesian-product* ] dip [ lfilter ] each ] dip lmap ;
-
-DEFER: lmerge
-
-: (lmerge) ( list1 list2 -- result )
-  over [ car ] curry -rot
-  [
-    dup [ car ] curry -rot
-    [
-      [ cdr ] bi@ lmerge
-    ] 2curry lazy-cons
-  ] 2curry lazy-cons ;
-
-: lmerge ( list1 list2 -- result )
-  {
-    { [ over nil? ] [ nip   ] }
-    { [ dup nil?  ]  [ drop ] }
-    { [ t         ]  [ (lmerge) ] }
-  } cond ;
-
-TUPLE: lazy-io stream car cdr quot ;
-
-C: <lazy-io> lazy-io
-
-: lcontents ( stream -- result )
-  f f [ stream-read1 ] <lazy-io> ;
-
-: llines ( stream -- result )
-  f f [ stream-readln ] <lazy-io> ;
-
-M: lazy-io car ( lazy-io -- car )
-  dup lazy-io-car dup [
-    nip
-  ] [
-    drop dup lazy-io-stream over lazy-io-quot call
-    swap dupd set-lazy-io-car
-  ] if ;
-
-M: lazy-io cdr ( lazy-io -- cdr )
-  dup lazy-io-cdr dup [
-    nip
-  ] [
-    drop dup
-    [ lazy-io-stream ] keep
-    [ lazy-io-quot ] keep
-    car [
-      [ f f ] dip <lazy-io> [ swap set-lazy-io-cdr ] keep
-    ] [
-      3drop nil
-    ] if
-  ] if ;
-
-M: lazy-io nil? ( lazy-io -- bool )
-  car not ;
-
-INSTANCE: cons list
-INSTANCE: sequence-cons list
-INSTANCE: memoized-cons list
-INSTANCE: promise list
-INSTANCE: lazy-io list
-INSTANCE: lazy-concat list
-INSTANCE: lazy-cons list
-INSTANCE: lazy-map list
-INSTANCE: lazy-take list
-INSTANCE: lazy-append list
-INSTANCE: lazy-from-by list
-INSTANCE: lazy-zip list
-INSTANCE: lazy-while list
-INSTANCE: lazy-until list
-INSTANCE: lazy-filter list
diff --git a/extra/lcd/lcd.factor b/extra/lcd/lcd.factor
index 952bc17f17..8123576f5e 100755
--- a/extra/lcd/lcd.factor
+++ b/extra/lcd/lcd.factor
@@ -1,7 +1,8 @@
-USING: sequences kernel math io calendar calendar.format
-calendar.model arrays models namespaces ui.gadgets
-ui.gadgets.labels
-ui.gadgets.theme ui ;
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors sequences kernel math io calendar grouping
+calendar.format calendar.model arrays models models.filter
+namespaces ui.gadgets ui.gadgets.labels ui.gadgets.theme ui ;
 IN: lcd
 
 : lcd-digit ( row digit -- str )
@@ -10,7 +11,7 @@ IN: lcd
         " | |  |   _| _| |_| |_  |_    | |_| |_|  *  "
         " |_|  |  |_  _|   |  _| |_|   | |_|   |  *  "
         "                                            "
-    } nth >r 4 * dup 4 + r> subseq ;
+    } nth 4 <groups> nth ;
 
 : lcd-row ( num row -- string )
     [ swap lcd-digit ] curry { } map-as concat ;
@@ -19,14 +20,13 @@ IN: lcd
     4 [ lcd-row ] with map "\n" join ;
 
 : hh:mm:ss ( timestamp -- string )
-    {
-        timestamp-hour timestamp-minute timestamp-second
-    } get-slots >fixnum 3array [ pad-00 ] map ":" join ;
+    [ hour>> ] [ minute>> ] [ second>> >fixnum ] tri
+    3array [ pad-00 ] map ":" join ;
 
 : <time-display> ( timestamp -- gadget )
     [ hh:mm:ss lcd ] <filter> <label-control>
     "99:99:99" lcd over set-label-string
-    monospace-font over set-label-font ;
+    monospace-font >>font ;
 
 : time-window ( -- )
     [ time get <time-display> "Time" open-window ] with-ui ;
diff --git a/extra/lisp/lisp-tests.factor b/extra/lisp/lisp-tests.factor
index 0312080907..48f6419d30 100644
--- a/extra/lisp/lisp-tests.factor
+++ b/extra/lisp/lisp-tests.factor
@@ -1,47 +1,87 @@
 ! Copyright (C) 2008 James Cash
 ! See http://factorcode.org/license.txt for BSD license.
-USING: lisp lisp.parser tools.test sequences math kernel parser ;
+USING: lisp lisp.parser tools.test sequences math kernel parser arrays lists
+quotations ;
 
 IN: lisp.test
 
 [
-    init-env
-    
-    "#f" [ f ] lisp-define
-    "#t" [ t ] lisp-define
-    
-    "+" "math" "+" define-primitve
-    "-" "math" "-" define-primitve
+    define-lisp-builtins
     
     { 5 } [
-      [ 2 3 ] "+" <lisp-symbol> funcall
+        "(+ 2 3)" lisp-eval
     ] unit-test
     
     { 8.3 } [
-     [ 10.4 2.1 ] "-" <lisp-symbol> funcall
+        "(- 10.4 2.1)" lisp-eval
     ] unit-test
     
     { 3 } [
-      "((lambda (x y) (+ x y)) 1 2)" lisp-string>factor call
+        "((lambda (x y) (+ x y)) 1 2)" lisp-eval
     ] unit-test
     
     { 42 } [
-      "((lambda (x y z) (+ x (- y z))) 40 3 1)" lisp-string>factor call
-    ] unit-test
-    
-    { 1 } [
-      "(if #t 1 2)" lisp-string>factor call
+        "((lambda (x y z) (+ x (- y z))) 40 3 1)" lisp-eval
     ] unit-test
     
     { "b" } [
-      "(cond (#f \"a\") (#t \"b\"))" lisp-string>factor call
+        "(cond (#f \"a\") (#t \"b\"))" lisp-eval
+    ] unit-test
+    
+    { "b" } [
+        "(cond ((< 1 2) \"b\") (#t \"a\"))" lisp-eval
+    ] unit-test
+        
+    { +nil+ } [
+        "(list)" lisp-eval
+    ] unit-test
+    
+    { { 1 2 3 4 5 } } [
+        "(list 1 2 3 4 5)" lisp-eval list>seq
+    ] unit-test
+    
+    { { 1 2 { 3 { 4 } 5 } } } [
+        "(list 1 2 (list 3 (list 4) 5))" lisp-eval cons>seq
     ] unit-test
     
     { 5 } [
-      "(begin (+ 1 4))" lisp-string>factor call
+        "(begin (+ 1 4))" lisp-eval
+    ] unit-test
+    
+    { 5 } [
+        "(begin (+ 5 6) (+ 1 4))" lisp-eval
+    ] unit-test
+    
+    { t } [
+        T{ lisp-symbol f "if" } lisp-macro?
+    ] unit-test
+    
+    { 1 } [
+        "(if #t 1 2)" lisp-eval
     ] unit-test
     
     { 3 } [
-       "((lambda (x) (if x (begin (+ 1 2)) (- 3 5))) #t)" lisp-string>factor call
+        "((lambda (x) (if x (+ 1 2) (- 3 5))) #t)" lisp-eval
     ] unit-test
-] with-interactive-vocabs
\ No newline at end of file
+    
+    { { 5 4 3 } } [
+        "((lambda (x &rest xs) (cons x xs)) 5 4 3)" lisp-eval cons>seq
+    ] unit-test
+    
+    { { 5 } } [
+        "((lambda (x &rest xs) (cons x xs)) 5)" lisp-eval cons>seq
+    ] unit-test
+    
+    { { 1 2 3 4 } } [
+        "((lambda (&rest xs) xs) 1 2 3 4)" lisp-eval cons>seq
+    ] unit-test
+    
+    { 10 } [
+        <LISP (begin (+ 1 2) (+ 9 1)) LISP>
+    ] unit-test
+    
+    { 4 } [
+        <LISP ((lambda (x y) (if x (+ 1 y) (+ 2 y))) #t 3) LISP>
+    ] unit-test
+    
+] with-interactive-vocabs
diff --git a/extra/lisp/lisp.factor b/extra/lisp/lisp.factor
index 82a331f2ca..e004af8655 100644
--- a/extra/lisp/lisp.factor
+++ b/extra/lisp/lisp.factor
@@ -1,102 +1,183 @@
 ! Copyright (C) 2008 James Cash
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel peg sequences arrays strings combinators.lib
-namespaces combinators math bake locals locals.private accessors
-vectors syntax lisp.parser assocs parser sequences.lib words quotations
-fry ;
+namespaces combinators math locals locals.private locals.backend accessors
+vectors syntax lisp.parser assocs parser sequences.lib words
+quotations fry lists summary combinators.short-circuit continuations multiline ;
 IN: lisp
 
 DEFER: convert-form
 DEFER: funcall
 DEFER: lookup-var
+DEFER: lookup-macro
+DEFER: lisp-macro?
+DEFER: lisp-var?
+DEFER: define-lisp-macro
 
 ! Functions to convert s-exps to quotations
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-: convert-body ( s-exp -- quot )
-    [ ] [ convert-form compose ] reduce ; inline
-  
-: convert-if ( s-exp -- quot )
-    rest first3 [ convert-form ] tri@ '[ @ , , if ] ;
-    
-: convert-begin ( s-exp -- quot )  
-    rest [ convert-form ] [ ] map-as '[ , [ funcall ] each ] ;
-    
-: convert-cond ( s-exp -- quot )  
-    rest [ body>> first2 [ convert-form ] bi@ [ '[ @ funcall ] ] dip 2array ]
-    { } map-as '[ , cond ]  ;
-    
-: convert-general-form ( s-exp -- quot )
-    unclip convert-form swap convert-body swap '[ , @ funcall ] ;
+: convert-body ( cons -- quot )
+    [ ] [ convert-form compose ] foldl ; inline
 
-! words for convert-lambda  
-<PRIVATE  
-: localize-body ( assoc body -- assoc newbody )  
-    [ dup lisp-symbol? [ over dupd [ name>> ] dip at swap or ]
-                     [ dup s-exp? [ body>> localize-body <s-exp> ] when ] if
-                   ] map ;
-    
-: localize-lambda ( body vars -- newbody newvars )
-    make-locals dup push-locals swap
-    [ swap localize-body <s-exp> convert-form swap pop-locals ] dip swap ;
-                   
-: split-lambda ( s-exp -- body vars )                   
-    first3 -rot nip [ body>> ] bi@ [ name>> ] map ; inline
-    
-: rest-lambda ( body vars -- quot )  
-    "&rest" swap [ index ] [ remove ] 2bi
-    localize-lambda <lambda>
-    '[ , cut '[ @ , ] , compose ] ;
-    
-: normal-lambda ( body vars -- quot )
-    localize-lambda <lambda> '[ , compose ] ;
-PRIVATE>
-    
-: convert-lambda ( s-exp -- quot )  
-    split-lambda "&rest" over member? [ rest-lambda ] [ normal-lambda ] if ;
-    
-: convert-quoted ( s-exp -- quot )  
-    second 1quotation ;
-    
-: convert-list-form ( s-exp -- quot )  
-    dup first dup lisp-symbol?
-    [ name>>
-      { { "lambda" [ convert-lambda ] }
-        { "quote" [ convert-quoted ] }
-        { "if" [ convert-if ] }
-        { "begin" [ convert-begin ] }
-        { "cond" [ convert-cond ] }
-       [ drop convert-general-form ]
-      } case ]
-    [ drop convert-general-form ] if ;
-    
-: convert-form ( lisp-form -- quot )
-    { { [ dup s-exp? ] [ body>> convert-list-form ] }
-    { [ dup lisp-symbol? ] [ '[ , lookup-var ] ] }
-    [ 1quotation ]
+: convert-cond ( cons -- quot )
+    cdr [ 2car [ convert-form ] bi@ 2array ]
+    { } lmap-as '[ , cond ] ;
+
+: convert-general-form ( cons -- quot )
+    uncons [ convert-body ] [ convert-form ] bi* '[ , @ funcall ] ;
+
+! words for convert-lambda
+<PRIVATE
+: localize-body ( assoc body -- newbody )
+    {
+      { [ dup list? ] [ [ lisp-symbol? ] rot '[ [ name>> , at ] [ ] bi or ] traverse ] }
+      { [ dup lisp-symbol? ] [ name>> swap at ] }
+     [ nip ]
     } cond ;
-    
+
+: localize-lambda ( body vars -- newvars newbody )
+    swap [ make-locals dup push-locals ] dip
+    dupd [ localize-body convert-form ] with lmap>array
+    >quotation swap pop-locals ;
+
+: split-lambda ( cons -- body-cons vars-seq )
+    cdr uncons [ name>> ] lmap>array ; inline
+
+: rest-lambda ( body vars -- quot )
+    "&rest" swap [ remove ] [ index ] 2bi
+    [ localize-lambda <lambda> lambda-rewrite call ] dip
+    swap '[ , cut '[ @ , seq>list ] call , call call ] 1quotation ;
+
+: normal-lambda ( body vars -- quot )
+    localize-lambda <lambda> lambda-rewrite '[ @ compose call call ] 1quotation ;
+PRIVATE>
+
+: convert-lambda ( cons -- quot )
+    split-lambda "&rest" over member? [ rest-lambda ] [ normal-lambda ] if ;
+
+: convert-quoted ( cons -- quot )
+    cadr 1quotation ;
+
+: convert-defmacro ( cons -- quot )
+    cdr [ convert-lambda ] [ car name>> ] bi define-lisp-macro [ ] ;
+
+: macro-expand ( cons -- quot )
+    uncons [ list>seq >quotation ] [ lookup-macro ] bi* call call ;
+
+<PRIVATE
+: (expand-macros) ( cons -- cons )
+    [ dup list? [ (expand-macros) dup car lisp-macro? [ macro-expand ] when ] when ] lmap ;
+PRIVATE>
+
+: expand-macros ( cons -- cons )
+    dup list? [ (expand-macros) dup car lisp-macro? [ macro-expand ] when ] when ;
+
+: convert-begin ( cons -- quot )
+    cdr [ convert-form ] [ ] lmap-as [ 1 tail* ] [ but-last ] bi
+    [ '[ { } , with-datastack drop ] ] map prepend '[ , [ call ] each ] ;
+
+: form-dispatch ( cons lisp-symbol -- quot )
+    name>>
+    { { "lambda" [ convert-lambda ] }
+      { "defmacro" [ convert-defmacro ] }
+      { "quote" [ convert-quoted ] }
+      { "cond" [ convert-cond ] }
+      { "begin" [ convert-begin ] }
+     [ drop convert-general-form ]
+    } case ;
+
+: convert-list-form ( cons -- quot )
+    dup car
+    {
+      { [ dup lisp-symbol? ] [ form-dispatch ] }
+     [ drop convert-general-form ]
+    } cond ;
+
+: convert-form ( lisp-form -- quot )
+    {
+      { [ dup cons? ] [ convert-list-form ] }
+      { [ dup lisp-var? ] [ lookup-var 1quotation ] }
+      { [ dup lisp-symbol? ] [ '[ , lookup-var ] ] }
+     [ 1quotation ]
+    } cond ;
+
 : lisp-string>factor ( str -- quot )
-    lisp-expr parse-result-ast convert-form lambda-rewrite call ;
-    
+    lisp-expr expand-macros convert-form ;
+
+: lisp-eval ( str -- * )
+    lisp-string>factor call ;
+
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 SYMBOL: lisp-env
-ERROR: no-such-var var ;
+SYMBOL: macro-env
+
+ERROR: no-such-var variable-name ;
+M: no-such-var summary drop "No such variable" ;
 
 : init-env ( -- )
-    H{ } clone lisp-env set ;
+    H{ } clone lisp-env set
+    H{ } clone macro-env set ;
 
-: lisp-define ( name quot -- )
-    swap lisp-env get set-at ;
+: lisp-define ( quot name -- )
+    lisp-env get set-at ;
     
+: define-lisp-var ( lisp-symbol body --  )
+    swap name>> lisp-define ;
+
 : lisp-get ( name -- word )
-    dup lisp-env get at [ ] [ no-such-var throw ] ?if ;
-    
+    lisp-env get at ;
+
 : lookup-var ( lisp-symbol -- quot )
-    name>> lisp-get ;
-    
+    [ name>> ] [ lisp-var? ] bi [ lisp-get ] [ no-such-var ] if ;
+
+: lisp-var? ( lisp-symbol -- ? )
+    dup lisp-symbol? [ name>> lisp-env get key? ] [ drop f ] if ;
+
 : funcall ( quot sym -- * )
-    dup lisp-symbol?  [ lookup-var ] when call ; inline
+    [ 1array [ call ] with-datastack >quotation ] dip curry call ; inline
+
+: define-primitive ( name vocab word -- )
+    swap lookup 1quotation '[ , compose call ] swap lisp-define ;
+
+: lookup-macro ( lisp-symbol -- lambda )
+    name>> macro-env get at ;
+
+: define-lisp-macro ( quot name -- )
+    macro-env get set-at ;
+
+: lisp-macro? ( car -- ? )
+    dup lisp-symbol? [ name>> macro-env get key? ] [ drop f ] if ;
+
+: define-lisp-builtins ( -- )
+   init-env
+
+   f "#f" lisp-define
+   t "#t" lisp-define
+
+   "+" "math" "+" define-primitive
+   "-" "math" "-" define-primitive
+   "<" "math" "<" define-primitive
+   ">" "math" ">" define-primitive
+
+   "cons" "lists" "cons" define-primitive
+   "car" "lists" "car" define-primitive
+   "cdr" "lists" "cdr" define-primitive
+   "append" "lists" "lappend" define-primitive
+   "nil" "lists" "nil" define-primitive
+   "nil?" "lists" "nil?" define-primitive
+
+   "set" "lisp" "define-lisp-var" define-primitive
     
-: define-primitve ( name vocab word -- )  
-    swap lookup 1quotation '[ , compose call ] lisp-define ;
\ No newline at end of file
+   "(lambda (&rest xs) xs)" lisp-string>factor first "list" lisp-define
+   "(defmacro setq (var val) (list (quote set) (list (quote quote) var) val))" lisp-eval
+    
+   <" (defmacro defun (name vars &rest body)
+        (list (quote setq) name (list (quote lambda) vars body))) "> lisp-eval
+    
+   "(defmacro if (pred tr fl) (list (quote cond) (list pred tr) (list (quote #t) fl)))" lisp-eval
+   ;
+
+: <LISP 
+    "LISP>" parse-multiline-string define-lisp-builtins
+    lisp-string>factor parsed \ call parsed ; parsing
\ No newline at end of file
diff --git a/extra/lisp/parser/parser-tests.factor b/extra/lisp/parser/parser-tests.factor
index 98a6d2a6ba..d722390f9a 100644
--- a/extra/lisp/parser/parser-tests.factor
+++ b/extra/lisp/parser/parser-tests.factor
@@ -1,46 +1,68 @@
 ! Copyright (C) 2008 James Cash
 ! See http://factorcode.org/license.txt for BSD license.
-USING: lisp.parser tools.test peg peg.ebnf ;
+USING: lisp.parser tools.test peg peg.ebnf lists ;
 
 IN: lisp.parser.tests
 
 { 1234  }  [
-  "1234" "atom" \ lisp-expr rule parse parse-result-ast
+  "1234" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { -42  }  [
-  "-42" "atom" \ lisp-expr rule parse parse-result-ast
+    "-42" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { 37/52 } [
-  "37/52" "atom" \ lisp-expr rule parse parse-result-ast
+    "37/52" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { 123.98 } [
-  "123.98" "atom" \ lisp-expr rule parse parse-result-ast
+    "123.98" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { "" } [
-  "\"\"" "atom" \ lisp-expr rule parse parse-result-ast
+    "\"\"" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { "aoeu" } [
-  "\"aoeu\"" "atom" \ lisp-expr rule parse parse-result-ast
+    "\"aoeu\"" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { "aoeu\"de" } [
-  "\"aoeu\\\"de\"" "atom" \ lisp-expr rule parse parse-result-ast
+    "\"aoeu\\\"de\"" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { T{ lisp-symbol f "foobar" } } [
-  "foobar" "atom" \ lisp-expr rule parse parse-result-ast
+    "foobar" "atom" \ lisp-expr rule parse
 ] unit-test
 
 { T{ lisp-symbol f "+" } } [
-  "+" "atom" \ lisp-expr rule parse parse-result-ast
+    "+" "atom" \ lisp-expr rule parse
 ] unit-test
 
-{ T{ s-exp f
-     V{ T{ lisp-symbol f "foo" } 1 2 "aoeu" } } } [
-  "(foo 1 2 \"aoeu\")" lisp-expr parse-result-ast
+{ +nil+ } [
+    "()" lisp-expr
+] unit-test
+
+{ T{
+    cons
+    f
+    T{ lisp-symbol f "foo" }
+    T{
+        cons
+        f
+        1
+        T{ cons f 2 T{ cons f "aoeu" +nil+ } }
+    } } } [
+    "(foo 1 2 \"aoeu\")" lisp-expr
+] unit-test
+
+{ T{ cons f
+       1
+       T{ cons f
+           T{ cons f 3 T{ cons f 4 +nil+ } }
+           T{ cons f 2 +nil+ } }
+   }
+} [
+    "(1 (3 4) 2)" lisp-expr
 ] unit-test
\ No newline at end of file
diff --git a/extra/lisp/parser/parser.factor b/extra/lisp/parser/parser.factor
index cf5ff56331..1b14f5bb34 100644
--- a/extra/lisp/parser/parser.factor
+++ b/extra/lisp/parser/parser.factor
@@ -1,16 +1,13 @@
 ! Copyright (C) 2008 James Cash
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel peg.ebnf peg.expr math.parser sequences arrays strings
-combinators.lib math ;
+USING: kernel peg peg.ebnf math.parser sequences arrays strings
+combinators.lib math fry accessors lists combinators.short-circuit ;
 
 IN: lisp.parser
 
 TUPLE: lisp-symbol name ;
 C: <lisp-symbol> lisp-symbol
 
-TUPLE: s-exp body ;
-C: <s-exp> s-exp
-
 EBNF: lisp-expr
 _            = (" " | "\t" | "\n")*
 LPAREN       = "("
@@ -24,8 +21,9 @@ rational     = integer "/" (digit)+                      => [[ first3 nip string
 number       = float
               | rational
               | integer
-id-specials  = "!" | "$" | "%" | "&" | "*" | "/" | ":" | "<" | "#"
-              | " =" | ">" | "?" | "^" | "_" | "~" | "+" | "-" | "." | "@"
+id-specials  = "!" | "$" | "%" | "&" | "*" | "/" | ":"
+              | "<" | "#" | " =" | ">" | "?" | "^" | "_"
+              | "~" | "+" | "-" | "." | "@"
 letters      = [a-zA-Z]                                  => [[ 1array >string ]]
 initials     = letters | id-specials
 numbers      = [0-9]                                     => [[ 1array >string ]]
@@ -36,6 +34,6 @@ string       = dquote ( escaped | !(dquote) . )*  dquote => [[ second >string ]]
 atom         = number
               | identifier
               | string
-list-item    = _ (atom|s-expression) _                   => [[ second ]]
-s-expression = LPAREN (list-item)* RPAREN                => [[ second <s-exp> ]]
+s-expression = LPAREN (list-item)* RPAREN                => [[ second seq>cons ]]
+list-item    = _ ( atom | s-expression ) _               => [[ second ]]
 ;EBNF
\ No newline at end of file
diff --git a/extra/lisppaste/tags.txt b/extra/lisppaste/tags.txt
index d17547f347..93e65ae758 100644
--- a/extra/lisppaste/tags.txt
+++ b/extra/lisppaste/tags.txt
@@ -1,3 +1,2 @@
-demos
 web
 network
diff --git a/extra/lists/authors.txt b/extra/lists/authors.txt
new file mode 100644
index 0000000000..4b7af4aac0
--- /dev/null
+++ b/extra/lists/authors.txt
@@ -0,0 +1 @@
+James Cash
diff --git a/extra/lazy-lists/authors.txt b/extra/lists/lazy/authors.txt
similarity index 100%
rename from extra/lazy-lists/authors.txt
rename to extra/lists/lazy/authors.txt
diff --git a/extra/lunar-rescue/authors.txt b/extra/lists/lazy/examples/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/lunar-rescue/authors.txt
rename to extra/lists/lazy/examples/authors.txt
diff --git a/extra/lazy-lists/examples/examples-tests.factor b/extra/lists/lazy/examples/examples-tests.factor
similarity index 56%
rename from extra/lazy-lists/examples/examples-tests.factor
rename to extra/lists/lazy/examples/examples-tests.factor
index d4e3ed79b8..04886e2c1c 100644
--- a/extra/lazy-lists/examples/examples-tests.factor
+++ b/extra/lists/lazy/examples/examples-tests.factor
@@ -1,5 +1,5 @@
-USING: lazy-lists.examples lazy-lists tools.test ;
-IN: lazy-lists.examples.tests
+USING: lists.lazy.examples lists.lazy tools.test ;
+IN: lists.lazy.examples.tests
 
 [ { 1 3 5 7 } ] [ 4 odds ltake list>array ] unit-test
 [ { 0 1 4 9 16 } ] [ first-five-squares ] unit-test
diff --git a/extra/lists/lazy/examples/examples.factor b/extra/lists/lazy/examples/examples.factor
new file mode 100644
index 0000000000..1d5bb49f35
--- /dev/null
+++ b/extra/lists/lazy/examples/examples.factor
@@ -0,0 +1,15 @@
+! Rewritten by Matthew Willis, July 2006
+! Copyright (C) 2004 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: lists.lazy math kernel sequences quotations ;
+IN: lists.lazy.examples
+
+: naturals ( -- list ) 0 lfrom ;
+: positives ( -- list ) 1 lfrom ;
+: evens ( -- list ) 0 [ 2 + ] lfrom-by ;
+: odds ( -- list ) 1 lfrom [ 2 mod 1 = ] lfilter ;
+: powers-of-2 ( -- list ) 1 [ 2 * ] lfrom-by ;
+: ones ( -- list ) 1 [ ] lfrom-by ;
+: squares ( -- list ) naturals [ dup * ] lazy-map ;
+: first-five-squares ( -- list ) 5 squares ltake list>array ;
diff --git a/extra/lazy-lists/lazy-lists-docs.factor b/extra/lists/lazy/lazy-docs.factor
similarity index 76%
rename from extra/lazy-lists/lazy-lists-docs.factor
rename to extra/lists/lazy/lazy-docs.factor
index b240b3fbc2..6a9359027d 100644
--- a/extra/lazy-lists/lazy-lists-docs.factor
+++ b/extra/lists/lazy/lazy-docs.factor
@@ -1,48 +1,8 @@
 ! Copyright (C) 2006 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
 
-USING: help.markup help.syntax sequences strings ;
-IN: lazy-lists 
-
-{ car cons cdr nil nil? list? uncons } related-words
-
-HELP: cons 
-{ $values { "car" "the head of the lazy list" } { "cdr" "the tail of the lazy list" } { "cons" "a cons object" } }
-{ $description "Constructs a cons cell." } ;
-
-HELP: car
-{ $values { "cons" "a cons object" } { "car" "the first item in the list" } }
-{ $description "Returns the first item in the list." } ;
-
-HELP: cdr
-{ $values { "cons" "a cons object" } { "cdr" "a cons object" } }
-{ $description "Returns the tail of the list." } ;
-
-HELP: nil 
-{ $values { "cons" "An empty cons" } }
-{ $description "Returns a representation of an empty list" } ;
-
-HELP: nil? 
-{ $values { "cons" "a cons object" } { "?" "a boolean" } }
-{ $description "Return true if the cons object is the nil cons." } ;
-
-HELP: list? ( object -- ? )
-{ $values { "object" "an object" } { "?" "a boolean" } }
-{ $description "Returns true if the object conforms to the list protocol." } ;
-
-{ 1list 2list 3list } related-words
-
-HELP: 1list
-{ $values { "obj" "an object" } { "cons" "a cons object" } }
-{ $description "Create a list with 1 element." } ;
-
-HELP: 2list
-{ $values { "a" "an object" } { "b" "an object" } { "cons" "a cons object" } }
-{ $description "Create a list with 2 elements." } ;
-
-HELP: 3list
-{ $values { "a" "an object" } { "b" "an object" } { "c" "an object" } { "cons" "a cons object" } }
-{ $description "Create a list with 3 elements." } ;
+USING: help.markup help.syntax sequences strings lists ;
+IN: lists.lazy 
 
 HELP: lazy-cons
 { $values { "car" "a quotation with stack effect ( -- X )" } { "cdr" "a quotation with stack effect ( -- cons )" } { "promise" "the resulting cons object" } }
@@ -68,37 +28,15 @@ HELP: <memoized-cons>
 { $description "Constructs a cons object that wraps an existing cons object. Requests for the car, cdr and nil? will be remembered after the first call, and the previous result returned on subsequent calls." } 
 { $see-also cons car cdr nil nil? } ;
 
-HELP: lnth
-{ $values { "n" "an integer index" } { "list" "a cons object" } { "elt" "the element at the nth index" } }
-{ $description "Outputs the nth element of the list." } 
-{ $see-also llength cons car cdr } ;
+{ lazy-map lazy-map-with ltake lfilter lappend lfrom lfrom-by lconcat lcartesian-product lcartesian-product* lcomp lcomp* lmerge lwhile luntil } related-words
 
-HELP: llength
-{ $values { "list" "a cons object" } { "n" "a non-negative integer" } }
-{ $description "Outputs the length of the list. This should not be called on an infinite list." } 
-{ $see-also lnth cons car cdr } ;
-
-HELP: uncons
-{ $values { "cons" "a cons object" } { "car" "the head of the list" } { "cdr" "the tail of the list" } }
-{ $description "Put the head and tail of the list on the stack." } ;
-
-{ leach lreduce lmap lmap-with ltake lfilter lappend lfrom lfrom-by lconcat lcartesian-product lcartesian-product* lcomp lcomp* lmerge lreduce lwhile luntil } related-words
-
-HELP: leach
-{ $values { "list" "a cons object" } { "quot" "a quotation with stack effect ( obj -- )" } }
-{ $description "Call the quotation for each item in the list." } ;
-
-HELP: lreduce
-{ $values { "list" "a cons object" } { "identity" "an object" } { "quot" "a quotation with stack effect ( prev elt -- next )" } { "result" "the final result" } }
-{ $description "Combines successive elements of the list using a binary operation, and outputs the final result." } ;
-
-HELP: lmap
+HELP: lazy-map
 { $values { "list" "a cons object" } { "quot" "a quotation with stack effect ( obj -- X )" } { "result" "resulting cons object" } }
 { $description "Perform a similar functionality to that of the " { $link map } " word, but in a lazy manner. No evaluation of the list elements occurs initially but a " { $link <lazy-map> } " object is returned which conforms to the list protocol. Calling " { $link car } ", " { $link cdr } " or " { $link nil? } " on this will evaluate elements as required." } ;
 
-HELP: lmap-with
+HELP: lazy-map-with
 { $values { "value" "an object" } { "list" "a cons object" } { "quot" "a quotation with stack effect ( obj elt -- X )" } { "result" "resulting cons object" } }
-{ $description "Variant of " { $link lmap } " which pushes a retained object on each invocation of the quotation." } ;
+{ $description "Variant of " { $link lazy-map } " which pushes a retained object on each invocation of the quotation." } ;
 
 HELP: ltake
 { $values { "n" "a non negative integer" } { "list" "a cons object" } { "result" "resulting cons object" } }
@@ -147,6 +85,8 @@ HELP: >list
 { $values { "object" "an object" } { "list" "a list" } }
 { $description "Convert the object into a list. Existing lists are passed through intact, sequences are converted using " { $link seq>list } " and other objects cause an error to be thrown." } 
 { $see-also seq>list } ;
+    
+{ leach foldl lazy-map lazy-map-with ltake lfilter lappend lfrom lfrom-by lconcat lcartesian-product lcartesian-product* lcomp lcomp* lmerge lwhile luntil } related-words
 
 HELP: lconcat
 { $values { "list" "a list of lists" } { "result" "a list" } }
@@ -175,7 +115,7 @@ HELP: lmerge
 { $values { "list1" "a list" } { "list2" "a list" } { "result" "lazy list merging list1 and list2" } }
 { $description "Return the result of merging the two lists in a lazy manner." } 
 { $examples
-  { $example "USING: lazy-lists prettyprint ;" "{ 1 2 3 } >list { 4 5 6 } >list lmerge list>array ." "{ 1 4 2 5 3 6 }" }
+  { $example "USING: lists.lazy prettyprint ;" "{ 1 2 3 } >list { 4 5 6 } >list lmerge list>array ." "{ 1 4 2 5 3 6 }" }
 } ;
 
 HELP: lcontents
@@ -187,4 +127,3 @@ HELP: llines
 { $values { "stream" "a stream" } { "result" "a list" } }
 { $description "Returns a lazy list of all lines in the file. " { $link car } " returns the next lines in the file, " { $link cdr } " returns the remaining lines as a lazy list. " { $link nil? } " indicates end of file." } 
 { $see-also lcontents } ;
-
diff --git a/extra/lazy-lists/lazy-lists-tests.factor b/extra/lists/lazy/lazy-tests.factor
similarity index 83%
rename from extra/lazy-lists/lazy-lists-tests.factor
rename to extra/lists/lazy/lazy-tests.factor
index 302299b452..5749f94364 100644
--- a/extra/lazy-lists/lazy-lists-tests.factor
+++ b/extra/lists/lazy/lazy-tests.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2006 Matthew Willis and Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
 !
-USING: lazy-lists tools.test kernel math io sequences ;
-IN: lazy-lists.tests
+USING: lists lists.lazy tools.test kernel math io sequences ;
+IN: lists.lazy.tests
 
 [ { 1 2 3 4 } ] [
   { 1 2 3 4 } >list list>array
@@ -25,5 +25,5 @@ IN: lazy-lists.tests
 ] unit-test
 
 [ { 4 5 6 } ] [ 
-    3 { 1 2 3 } >list [ + ] lmap-with list>array
+    3 { 1 2 3 } >list [ + ] lazy-map-with list>array
 ] unit-test
diff --git a/extra/lists/lazy/lazy.factor b/extra/lists/lazy/lazy.factor
new file mode 100644
index 0000000000..5854e37702
--- /dev/null
+++ b/extra/lists/lazy/lazy.factor
@@ -0,0 +1,392 @@
+! Copyright (C) 2004 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+!
+! Updated by Matthew Willis, July 2006
+! Updated by Chris Double, September 2006
+! Updated by James Cash, June 2008
+!
+USING: kernel sequences math vectors arrays namespaces
+quotations promises combinators io lists accessors ;
+IN: lists.lazy
+
+M: promise car ( promise -- car )
+    force car ;
+
+M: promise cdr ( promise -- cdr )
+    force cdr ;
+
+M: promise nil? ( cons -- bool )
+    force nil? ;
+    
+! Both 'car' and 'cdr' are promises
+TUPLE: lazy-cons car cdr ;
+
+: lazy-cons ( car cdr -- promise )
+    [ promise ] bi@ \ lazy-cons boa
+    T{ promise f f t f } clone
+        swap >>value ;
+
+M: lazy-cons car ( lazy-cons -- car )
+    car>> force ;
+
+M: lazy-cons cdr ( lazy-cons -- cdr )
+    cdr>> force ;
+
+M: lazy-cons nil? ( lazy-cons -- bool )
+    nil eq? ;
+
+: 1lazy-list ( a -- lazy-cons )
+    [ nil ] lazy-cons ;
+
+: 2lazy-list ( a b -- lazy-cons )
+    1lazy-list 1quotation lazy-cons ;
+
+: 3lazy-list ( a b c -- lazy-cons )
+    2lazy-list 1quotation lazy-cons ;
+
+TUPLE: memoized-cons original car cdr nil? ;
+
+: not-memoized ( -- obj )
+    { } ;
+
+: not-memoized? ( obj -- bool )
+    not-memoized eq? ;
+
+: <memoized-cons> ( cons -- memoized-cons )
+    not-memoized not-memoized not-memoized
+    memoized-cons boa ;
+
+M: memoized-cons car ( memoized-cons -- car )
+    dup car>> not-memoized? [
+        dup original>> car [ >>car drop ] keep
+    ] [
+        car>>
+    ] if ;
+
+M: memoized-cons cdr ( memoized-cons -- cdr )
+    dup cdr>> not-memoized? [
+        dup original>> cdr [ >>cdr drop ] keep
+    ] [
+        cdr>>
+    ] if ;
+
+M: memoized-cons nil? ( memoized-cons -- bool )
+    dup nil?>> not-memoized? [
+        dup original>> nil?  [ >>nil? drop ] keep
+    ] [
+        nil?>>
+    ] if ;
+
+TUPLE: lazy-map cons quot ;
+
+C: <lazy-map> lazy-map
+
+: lazy-map ( list quot -- result )
+    over nil? [ 2drop nil ] [ <lazy-map> <memoized-cons> ] if ;
+
+M: lazy-map car ( lazy-map -- car )
+    [ cons>> car ] keep
+    quot>> call ;
+
+M: lazy-map cdr ( lazy-map -- cdr )
+    [ cons>> cdr ] keep
+    quot>> lazy-map ;
+
+M: lazy-map nil? ( lazy-map -- bool )
+    cons>> nil? ;
+
+: lazy-map-with ( value list quot -- result )
+    with lazy-map ;
+
+TUPLE: lazy-take n cons ;
+
+C: <lazy-take> lazy-take
+
+: ltake ( n list -- result )
+        over zero? [ 2drop nil ] [ <lazy-take> ] if ;
+
+M: lazy-take car ( lazy-take -- car )
+    cons>> car ;
+
+M: lazy-take cdr ( lazy-take -- cdr )
+    [ n>> 1- ] keep
+    cons>> cdr ltake ;
+
+M: lazy-take nil? ( lazy-take -- bool )
+    dup n>> zero? [
+        drop t
+    ] [
+        cons>> nil?
+    ] if ;
+
+TUPLE: lazy-until cons quot ;
+
+C: <lazy-until> lazy-until
+
+: luntil ( list quot -- result )
+    over nil? [ drop ] [ <lazy-until> ] if ;
+
+M: lazy-until car ( lazy-until -- car )
+     cons>> car ;
+
+M: lazy-until cdr ( lazy-until -- cdr )
+     [ cons>> uncons ] keep quot>> tuck call
+     [ 2drop nil ] [ luntil ] if ;
+
+M: lazy-until nil? ( lazy-until -- bool )
+     drop f ;
+
+TUPLE: lazy-while cons quot ;
+
+C: <lazy-while> lazy-while
+
+: lwhile ( list quot -- result )
+    over nil? [ drop ] [ <lazy-while> ] if ;
+
+M: lazy-while car ( lazy-while -- car )
+     cons>> car ;
+
+M: lazy-while cdr ( lazy-while -- cdr )
+     [ cons>> cdr ] keep quot>> lwhile ;
+
+M: lazy-while nil? ( lazy-while -- bool )
+     [ car ] keep quot>> call not ;
+
+TUPLE: lazy-filter cons quot ;
+
+C: <lazy-filter> lazy-filter
+
+: lfilter ( list quot -- result )
+    over nil? [ 2drop nil ] [ <lazy-filter> <memoized-cons> ] if ;
+
+: car-filter? ( lazy-filter -- ? )
+    [ cons>> car ] [ quot>> ] bi call ;
+
+: skip ( lazy-filter -- )
+    dup cons>> cdr >>cons drop ;
+
+M: lazy-filter car ( lazy-filter -- car )
+    dup car-filter? [ cons>> ] [ dup skip ] if car ;
+
+M: lazy-filter cdr ( lazy-filter -- cdr )
+    dup car-filter? [
+        [ cons>> cdr ] [ quot>> ] bi lfilter
+    ] [
+        dup skip cdr
+    ] if ;
+
+M: lazy-filter nil? ( lazy-filter -- bool )
+    dup cons>> nil? [
+        drop t
+    ] [
+        dup car-filter? [
+            drop f
+        ] [
+            dup skip nil?
+        ] if
+    ] if ;
+
+: list>vector ( list -- vector )
+    [ [ , ] leach ] V{ } make ;
+
+: list>array ( list -- array )
+    [ [ , ] leach ] { } make ;
+
+TUPLE: lazy-append list1 list2 ;
+
+C: <lazy-append> lazy-append
+
+: lappend ( list1 list2 -- result )
+    over nil? [ nip ] [ <lazy-append> ] if ;
+
+M: lazy-append car ( lazy-append -- car )
+    list1>> car ;
+
+M: lazy-append cdr ( lazy-append -- cdr )
+    [ list1>> cdr    ] keep
+    list2>> lappend ;
+
+M: lazy-append nil? ( lazy-append -- bool )
+     drop f ;
+
+TUPLE: lazy-from-by n quot ;
+
+C: lfrom-by lazy-from-by ( n quot -- list )
+
+: lfrom ( n -- list )
+    [ 1+ ] lfrom-by ;
+
+M: lazy-from-by car ( lazy-from-by -- car )
+    n>> ;
+
+M: lazy-from-by cdr ( lazy-from-by -- cdr )
+    [ n>> ] keep
+    quot>> dup slip lfrom-by ;
+
+M: lazy-from-by nil? ( lazy-from-by -- bool )
+    drop f ;
+
+TUPLE: lazy-zip list1 list2 ;
+
+C: <lazy-zip> lazy-zip
+
+: lzip ( list1 list2 -- lazy-zip )
+        over nil? over nil? or
+        [ 2drop nil ] [ <lazy-zip> ] if ;
+
+M: lazy-zip car ( lazy-zip -- car )
+        [ list1>> car ] keep list2>> car 2array ;
+
+M: lazy-zip cdr ( lazy-zip -- cdr )
+        [ list1>> cdr ] keep list2>> cdr lzip ;
+
+M: lazy-zip nil? ( lazy-zip -- bool )
+        drop f ;
+
+TUPLE: sequence-cons index seq ;
+
+C: <sequence-cons> sequence-cons
+
+: seq>list ( index seq -- list )
+    2dup length >= [
+        2drop nil
+    ] [
+        <sequence-cons>
+    ] if ;
+
+M: sequence-cons car ( sequence-cons -- car )
+    [ index>> ] keep
+    seq>> nth ;
+
+M: sequence-cons cdr ( sequence-cons -- cdr )
+    [ index>> 1+ ] keep
+    seq>> seq>list ;
+
+M: sequence-cons nil? ( sequence-cons -- bool )
+    drop f ;
+
+: >list ( object -- list )
+    {
+        { [ dup sequence? ] [ 0 swap seq>list ] }
+        { [ dup list?         ] [ ] }
+        [ "Could not convert object to a list" throw ]
+    } cond ;
+
+TUPLE: lazy-concat car cdr ;
+
+C: <lazy-concat> lazy-concat
+
+DEFER: lconcat
+
+: (lconcat) ( car cdr -- list )
+    over nil? [
+        nip lconcat
+    ] [
+        <lazy-concat>
+    ] if ;
+
+: lconcat ( list -- result )
+    dup nil? [
+        drop nil
+    ] [
+        uncons swap (lconcat)
+    ] if ;
+
+M: lazy-concat car ( lazy-concat -- car )
+    car>> car ;
+
+M: lazy-concat cdr ( lazy-concat -- cdr )
+    [ car>> cdr ] keep cdr>> (lconcat) ;
+
+M: lazy-concat nil? ( lazy-concat -- bool )
+    dup car>> nil? [
+        cdr>> nil?
+    ] [
+        drop f
+    ] if ;
+
+: lcartesian-product ( list1 list2 -- result )
+    swap [ swap [ 2array ] lazy-map-with  ] lazy-map-with  lconcat ;
+
+: lcartesian-product* ( lists -- result )
+    dup nil? [
+        drop nil
+    ] [
+        [ car ] keep cdr [ car lcartesian-product ] keep cdr list>array swap [
+            swap [ swap [ suffix ] lazy-map-with  ] lazy-map-with  lconcat
+        ] reduce
+    ] if ;
+
+: lcomp ( list quot -- result )
+    [ lcartesian-product* ] dip lazy-map ;
+
+: lcomp* ( list guards quot -- result )
+    [ [ lcartesian-product* ] dip [ lfilter ] each ] dip lazy-map ;
+
+DEFER: lmerge
+
+: (lmerge) ( list1 list2 -- result )
+    over [ car ] curry -rot
+    [
+        dup [ car ] curry -rot
+        [
+            [ cdr ] bi@ lmerge
+        ] 2curry lazy-cons
+    ] 2curry lazy-cons ;
+
+: lmerge ( list1 list2 -- result )
+    {
+        { [ over nil? ] [ nip     ] }
+        { [ dup nil?    ]    [ drop ] }
+        { [ t                 ]    [ (lmerge) ] }
+    } cond ;
+
+TUPLE: lazy-io stream car cdr quot ;
+
+C: <lazy-io> lazy-io
+
+: lcontents ( stream -- result )
+    f f [ stream-read1 ] <lazy-io> ;
+
+: llines ( stream -- result )
+    f f [ stream-readln ] <lazy-io> ;
+
+M: lazy-io car ( lazy-io -- car )
+    dup car>> dup [
+        nip
+    ] [
+        drop dup stream>> over quot>> call
+        >>car
+    ] if ;
+
+M: lazy-io cdr ( lazy-io -- cdr )
+    dup cdr>> dup [
+        nip
+    ] [
+        drop dup
+        [ stream>> ] keep
+        [ quot>> ] keep
+        car [
+            [ f f ] dip <lazy-io> [ >>cdr drop ] keep
+        ] [
+            3drop nil
+        ] if
+    ] if ;
+
+M: lazy-io nil? ( lazy-io -- bool )
+    car not ;
+
+INSTANCE: sequence-cons list
+INSTANCE: memoized-cons list
+INSTANCE: promise list
+INSTANCE: lazy-io list
+INSTANCE: lazy-concat list
+INSTANCE: lazy-cons list
+INSTANCE: lazy-map list
+INSTANCE: lazy-take list
+INSTANCE: lazy-append list
+INSTANCE: lazy-from-by list
+INSTANCE: lazy-zip list
+INSTANCE: lazy-while list
+INSTANCE: lazy-until list
+INSTANCE: lazy-filter list
diff --git a/extra/lazy-lists/old-doc.html b/extra/lists/lazy/old-doc.html
similarity index 100%
rename from extra/lazy-lists/old-doc.html
rename to extra/lists/lazy/old-doc.html
diff --git a/extra/lazy-lists/summary.txt b/extra/lists/lazy/summary.txt
similarity index 100%
rename from extra/lazy-lists/summary.txt
rename to extra/lists/lazy/summary.txt
diff --git a/extra/lazy-lists/tags.txt b/extra/lists/lazy/tags.txt
similarity index 100%
rename from extra/lazy-lists/tags.txt
rename to extra/lists/lazy/tags.txt
diff --git a/extra/lists/lists-docs.factor b/extra/lists/lists-docs.factor
new file mode 100644
index 0000000000..cd2e6f7081
--- /dev/null
+++ b/extra/lists/lists-docs.factor
@@ -0,0 +1,104 @@
+! Copyright (C) 2006 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel help.markup help.syntax ;
+
+IN: lists
+
+{ car cons cdr nil nil? list? uncons } related-words
+
+HELP: cons 
+{ $values { "car" "the head of the lazy list" } { "cdr" "the tail of the lazy list" } { "cons" "a cons object" } }
+{ $description "Constructs a cons cell." } ;
+
+HELP: car
+{ $values { "cons" "a cons object" } { "car" "the first item in the list" } }
+{ $description "Returns the first item in the list." } ;
+
+HELP: cdr
+{ $values { "cons" "a cons object" } { "cdr" "a cons object" } }
+{ $description "Returns the tail of the list." } ;
+    
+HELP: nil 
+{ $values { "symbol" "The empty cons (+nil+)" } }
+{ $description "Returns a symbol representing the empty list" } ;
+
+HELP: nil? 
+{ $values { "object" object } { "?" "a boolean" } }
+{ $description "Return true if the cons object is the nil cons." } ;
+
+HELP: list? ( object -- ? )
+{ $values { "object" "an object" } { "?" "a boolean" } }
+{ $description "Returns true if the object conforms to the list protocol." } ;
+
+{ 1list 2list 3list } related-words
+
+HELP: 1list
+{ $values { "obj" "an object" } { "cons" "a cons object" } }
+{ $description "Create a list with 1 element." } ;
+
+HELP: 2list
+{ $values { "a" "an object" } { "b" "an object" } { "cons" "a cons object" } }
+{ $description "Create a list with 2 elements." } ;
+
+HELP: 3list
+{ $values { "a" "an object" } { "b" "an object" } { "c" "an object" } { "cons" "a cons object" } }
+{ $description "Create a list with 3 elements." } ;
+    
+HELP: lnth
+{ $values { "n" "an integer index" } { "list" "a cons object" } { "elt" "the element at the nth index" } }
+{ $description "Outputs the nth element of the list." } 
+{ $see-also llength cons car cdr } ;
+
+HELP: llength
+{ $values { "list" "a cons object" } { "n" "a non-negative integer" } }
+{ $description "Outputs the length of the list. This should not be called on an infinite list." } 
+{ $see-also lnth cons car cdr } ;
+
+HELP: uncons
+{ $values { "cons" "a cons object" }  { "cdr" "the tail of the list" } { "car" "the head of the list" } }
+{ $description "Put the head and tail of the list on the stack." } ;
+
+{ leach foldl lmap>array } related-words
+
+HELP: leach
+{ $values { "list" "a cons object" } { "quot" "a quotation with stack effect ( obj -- )" } }
+{ $description "Call the quotation for each item in the list." } ;
+
+HELP: foldl
+{ $values { "list" "a cons object" } { "identity" "an object" } { "quot" "a quotation with stack effect ( prev elt -- next )" } { "result" "the final result" } }
+{ $description "Combines successive elements of the list (in a left-assocative order) using a binary operation and outputs the final result." } ;
+
+HELP: foldr
+{ $values { "list" "a cons object" } { "identity" "an object" } { "quot" "a quotation with stack effect ( prev elt -- next )" } { "result" "the final result" } }
+{ $description "Combines successive elements of the list (in a right-assocative order) using a binary operation, and outputs the final result." } ;
+
+HELP: lmap
+{ $values { "list" "a cons object" } { "quot" "a quotation with stack effect ( old -- new )" } { "result" "the final result" } }
+{ $description "Applies the quotation to each element of the list in order, collecting the new elements into a new list." } ;
+    
+HELP: lreverse
+{ $values { "list" "a cons object" } { "newlist" "a new cons object" } }
+{ $description "Reverses the input list, outputing a new, reversed list" } ;
+    
+HELP: list>seq    
+{ $values { "list" "a cons object" } { "array" "an array object" } }
+{ $description "Turns the given cons object into an array, maintaing order." } ;
+    
+HELP: seq>list
+{ $values { "seq" "a sequence" } { "list" "a cons object" } }
+{ $description "Turns the given array into a cons object, maintaing order." } ;
+    
+HELP: cons>seq
+{ $values { "cons" "a cons object" } { "array" "an array object" } }
+{ $description "Recursively turns the given cons object into an array, maintaing order and also converting nested lists." } ;
+    
+HELP: seq>cons
+{ $values { "seq" "a sequence object" } { "cons" "a cons object" } }
+{ $description "Recursively turns the given sequence into a cons object, maintaing order and also converting nested lists." } ;
+    
+HELP: traverse    
+{ $values { "list"  "a cons object" } { "pred" "a quotation with stack effect ( list/elt -- ? )" }
+          { "quot" "a quotation with stack effect ( list/elt -- result)" }  { "result" "a new cons object" } }
+{ $description "Recursively traverses the list object, replacing any elements (which can themselves be sublists) that pred" 
+    " returns true for with the result of applying quot to." } ;
+    
diff --git a/extra/lists/lists-tests.factor b/extra/lists/lists-tests.factor
new file mode 100644
index 0000000000..4a08a4d1e3
--- /dev/null
+++ b/extra/lists/lists-tests.factor
@@ -0,0 +1,70 @@
+! Copyright (C) 2008 James Cash
+! See http://factorcode.org/license.txt for BSD license.
+USING: tools.test lists math ;
+
+IN: lists.tests
+
+{ { 3 4 5 6 7 } } [
+    { 1 2 3 4 5 } seq>list [ 2 + ] lmap list>seq 
+] unit-test
+
+{ { 3 4 5 6 } } [
+    T{ cons f 1       
+        T{ cons f 2 
+            T{ cons f 3
+                T{ cons f 4
+                +nil+ } } } } [ 2 + ] lmap>array
+] unit-test
+
+{ 10 } [
+    T{ cons f 1       
+        T{ cons f 2 
+            T{ cons f 3
+                T{ cons f 4
+                +nil+ } } } } 0 [ + ] foldl
+] unit-test
+    
+{ T{ cons f
+      1
+      T{ cons f
+          2
+          T{ cons f
+              T{ cons f
+                  3
+                  T{ cons f
+                      4
+                      T{ cons f
+                          T{ cons f 5 +nil+ }
+                          +nil+ } } }
+          +nil+ } } }
+} [
+    { 1 2 { 3 4 { 5 } } } seq>cons
+] unit-test
+    
+{ { 1 2 { 3 4 { 5 } } } } [
+  { 1 2 { 3 4 { 5 } } } seq>cons cons>seq
+] unit-test
+    
+{ T{ cons f 2 T{ cons f 3 T{ cons f 4 T{ cons f 5 +nil+ } } } } } [
+    { 1 2 3 4 } seq>cons [ 1+ ] lmap
+] unit-test
+    
+{ 15 } [
+ { 1 2 3 4 5 } seq>list 0 [ + ] foldr
+] unit-test
+    
+{ { 5 4 3 2 1 } } [
+    { 1 2 3 4 5 } seq>list lreverse list>seq
+] unit-test
+    
+{ 5 } [
+    { 1 2 3 4 5 } seq>list llength
+] unit-test
+    
+{ { 3 4 { 5 6 { 7 } } } } [
+  { 1 2 { 3 4 { 5 } } } seq>cons [ atom? ] [ 2 + ] traverse cons>seq
+] unit-test
+    
+{ { 1 2 3 4 5 6 } } [
+    { 1 2 3 } seq>list { 4 5 6 } seq>list lappend list>seq
+] unit-test
\ No newline at end of file
diff --git a/extra/lists/lists.factor b/extra/lists/lists.factor
new file mode 100644
index 0000000000..bf822889e3
--- /dev/null
+++ b/extra/lists/lists.factor
@@ -0,0 +1,112 @@
+! Copyright (C) 2008 James Cash
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences accessors math arrays vectors classes words locals ;
+
+IN: lists
+
+! List Protocol
+MIXIN: list
+GENERIC: car   ( cons -- car )
+GENERIC: cdr   ( cons -- cdr )
+GENERIC: nil?  ( object -- ?   )
+    
+TUPLE: cons car cdr ;
+
+C: cons cons
+
+M: cons car ( cons -- car )
+    car>> ;
+
+M: cons cdr ( cons -- cdr )
+    cdr>> ;
+    
+SYMBOL: +nil+
+M: word nil? +nil+ eq? ;
+M: object nil? drop f ;
+    
+: atom? ( obj -- ? ) [ list? ] [ nil? ] bi or not ;
+
+: nil ( -- symbol ) +nil+ ; 
+    
+: uncons ( cons -- cdr car )
+    [ cdr ] [ car ] bi ;
+    
+: 1list ( obj -- cons )
+    nil cons ;
+    
+: 2list ( a b -- cons )
+    nil cons cons ;
+
+: 3list ( a b c -- cons )
+    nil cons cons cons ;
+    
+: cadr ( cons -- elt )    
+    cdr car ;
+    
+: 2car ( cons -- car caar )    
+    [ car ] [ cdr car ] bi ;
+    
+: 3car ( cons -- car caar caaar )    
+    [ car ] [ cdr car ] [ cdr cdr car ] tri ;
+
+: lnth ( n list -- elt )
+    swap [ cdr ] times car ;
+    
+: (leach) ( list quot -- cdr quot )
+    [ [ car ] dip call ] [ [ cdr ] dip ] 2bi ; inline
+
+: leach ( list quot: ( elt -- ) -- )
+    over nil? [ 2drop ] [ (leach) leach ] if ; inline recursive
+
+: lmap ( list quot: ( elt -- ) -- result )
+    over nil? [ drop ] [ (leach) lmap cons ] if ; inline recursive
+
+: foldl ( list identity quot: ( obj1 obj2 -- obj ) -- result )
+    swapd leach ; inline
+
+: foldr ( list identity quot: ( obj1 obj2 -- obj ) -- result )
+    pick nil? [ [ drop ] [ ] [ drop ] tri* ] [
+        [ [ cdr ] 2dip foldr ] [ nip [ car ] dip ] 3bi
+        call
+    ] if ; inline recursive
+
+: llength ( list -- n )
+    0 [ drop 1+ ] foldl ;
+    
+: lreverse ( list -- newlist )    
+    nil [ swap cons ] foldl ;
+    
+: lappend ( list1 list2 -- newlist )    
+    [ lreverse ] dip [ swap cons ] foldl ;
+    
+: seq>list ( seq -- list )    
+    <reversed> nil [ swap cons ] reduce ;
+    
+: same? ( obj1 obj2 -- ? ) 
+    [ class ] bi@ = ;
+    
+: seq>cons ( seq -- cons )
+    [ <reversed> ] keep nil [ tuck same? [ seq>cons ] when f cons swap >>cdr ] with reduce ;
+    
+: (lmap>array) ( acc cons quot: ( elt -- elt' ) -- newcons )
+    over nil? [ 2drop ]
+    [ [ uncons ] dip [ call ] keep swapd [ suffix ] 2dip (lmap>array) ] if ;
+    inline recursive
+    
+: lmap>array ( cons quot -- newcons )
+    { } -rot (lmap>array) ; inline
+    
+: lmap-as ( cons quot exemplar -- seq )
+    [ lmap>array ] dip like ;
+    
+: cons>seq ( cons -- array )    
+    [ dup cons? [ cons>seq ] when dup nil? [ drop { } ] when ] lmap>array ;
+    
+: list>seq ( list -- array )    
+    [ ] lmap>array ;
+    
+: traverse ( list pred quot: ( list/elt -- result ) -- result )
+    [ 2over call [ tuck [ call ] 2dip ] when
+      pick list? [ traverse ] [ 2drop ] if ] 2curry lmap ; inline recursive
+    
+INSTANCE: cons list
\ No newline at end of file
diff --git a/extra/lists/summary.txt b/extra/lists/summary.txt
new file mode 100644
index 0000000000..60a18867ab
--- /dev/null
+++ b/extra/lists/summary.txt
@@ -0,0 +1 @@
+Implementation of lisp-style linked lists
diff --git a/extra/lists/tags.txt b/extra/lists/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/extra/lists/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/locals/backend/backend-tests.factor b/extra/locals/backend/backend-tests.factor
deleted file mode 100644
index 41caa87fae..0000000000
--- a/extra/locals/backend/backend-tests.factor
+++ /dev/null
@@ -1,38 +0,0 @@
-IN: locals.backend.tests
-USING: tools.test locals.backend kernel arrays ;
-
-[ 3 ] [ 3 >r 1 get-local r> drop ] unit-test
-
-[ 4 ] [ 3 4 >r >r 2 get-local 2 drop-locals ] unit-test
-
-: get-local-test-1 3 >r 1 get-local r> drop ;
-
-{ 0 1 } [ get-local-test-1 ] must-infer-as
-
-[ 3 ] [ get-local-test-1 ] unit-test
-
-: get-local-test-2 3 4 >r >r 2 get-local 2 drop-locals ;
-
-{ 0 1 } [ get-local-test-2 ] must-infer-as
-
-[ 4 ] [ get-local-test-2 ] unit-test
-
-: get-local-test-3 3 4 >r >r 2 get-local r> r> 2array ;
-
-{ 0 2 } [ get-local-test-3 ] must-infer-as
-
-[ 4 { 3 4 } ] [ get-local-test-3 ] unit-test
-
-: get-local-test-4 3 4 >r >r r> r> dup swap >r swap >r r> r> 2array ;
-
-{ 0 2 } [ get-local-test-4 ] must-infer-as
-
-[ 4 { 3 4 } ] [ get-local-test-4 ] unit-test
-
-[ 1 2 ] [ 1 2 2 load-locals r> r> ] unit-test
-
-: load-locals-test-1 1 2 2 load-locals r> r> ;
-
-{ 0 2 } [ load-locals-test-1 ] must-infer-as
-
-[ 1 2 ] [ load-locals-test-1 ] unit-test
diff --git a/extra/locals/backend/backend.factor b/extra/locals/backend/backend.factor
deleted file mode 100644
index 10bed8b5df..0000000000
--- a/extra/locals/backend/backend.factor
+++ /dev/null
@@ -1,42 +0,0 @@
-USING: math kernel slots.private inference.known-words
-inference.backend sequences effects words ;
-IN: locals.backend
-
-: load-locals ( n -- )
-    dup zero? [ drop ] [ swap >r 1- load-locals ] if ;
-
-: get-local ( n -- value )
-    dup zero? [ drop dup ] [ r> swap 1- get-local swap >r ] if ;
-
-: local-value 2 slot ; inline
-
-: set-local-value 2 set-slot ; inline
-
-: drop-locals ( n -- )
-    dup zero? [ drop ] [ r> drop 1- drop-locals ] if ;
-
-\ load-locals [
-    pop-literal nip
-    [ dup reverse <effect> infer-shuffle ]
-    [ infer->r ]
-    bi
-] "infer" set-word-prop
-
-\ get-local [
-    pop-literal nip
-    [ infer-r> ]
-    [ dup 0 prefix <effect> infer-shuffle ]
-    [ infer->r ]
-    tri
-] "infer" set-word-prop
-
-\ drop-locals [
-    pop-literal nip
-    [ infer-r> ]
-    [ { } <effect> infer-shuffle ] bi
-] "infer" set-word-prop
-
-<<
-{ load-locals get-local drop-locals }
-[ t "no-compile" set-word-prop ] each
->>
diff --git a/extra/log-viewer/tags.txt b/extra/log-viewer/tags.txt
index cb5fc203e1..8b13789179 100755
--- a/extra/log-viewer/tags.txt
+++ b/extra/log-viewer/tags.txt
@@ -1 +1 @@
-demos
+
diff --git a/extra/logging/parser/parser.factor b/extra/logging/parser/parser.factor
deleted file mode 100755
index c6b073e501..0000000000
--- a/extra/logging/parser/parser.factor
+++ /dev/null
@@ -1,72 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: parser-combinators memoize kernel sequences
-logging arrays words strings vectors io io.files
-namespaces combinators combinators.lib logging.server
-calendar calendar.format ;
-IN: logging.parser
-
-: string-of satisfy <!*> [ >string ] <@ ;
-
-SYMBOL: multiline
-
-: 'date'
-    [ "]" member? not ] string-of [
-        dup multiline-header =
-        [ drop multiline ] [ rfc3339>timestamp ] if
-    ] <@
-    "[" "]" surrounded-by ;
-
-: 'log-level'
-    log-levels [
-        [ word-name token ] keep [ nip ] curry <@
-    ] map <or-parser> ;
-
-: 'word-name'
-    [ " :" member? not ] string-of ;
-
-SYMBOL: malformed
-
-: 'malformed-line'
-    [ drop t ] string-of [ malformed swap 2array ] <@ ;
-
-: 'log-message'
-    [ drop t ] string-of [ 1vector ] <@ ;
-
-MEMO: 'log-line' ( -- parser )
-    'date' " " token <&
-    'log-level' " " token <& <&>
-    'word-name' ": " token <& <:&>
-    'log-message' <:&>
-    'malformed-line' <|> ;
-
-: parse-log-line ( string -- entry )
-    'log-line' parse-1 ;
-
-: malformed? ( line -- ? )
-    first malformed eq? ;
-
-: multiline? ( line -- ? )
-    first multiline eq? ;
-
-: malformed-line
-    "Warning: malformed log line:" print
-    second print ;
-
-: add-multiline ( line -- )
-    building get empty? [
-        "Warning: log begins with multiline entry" print drop
-    ] [
-        fourth first building get peek fourth push
-    ] if ;
-
-: parse-log ( lines -- entries )
-    [
-        [
-            parse-log-line {
-                { [ dup malformed? ] [ malformed-line ] }
-                { [ dup multiline? ] [ add-multiline ] }
-                [ , ]
-            } cond
-        ] each
-    ] { } make ;
diff --git a/extra/math/bitfields/lib/lib-docs.factor b/extra/math/bitfields/lib/lib-docs.factor
deleted file mode 100644
index bfbe9eaded..0000000000
--- a/extra/math/bitfields/lib/lib-docs.factor
+++ /dev/null
@@ -1,16 +0,0 @@
-USING: help.markup help.syntax kernel math sequences ;
-IN: math.bitfields.lib
-
-HELP: bits 
-{ $values { "m" integer } { "n" integer } { "m'" integer } }
-{ $description "Keep only n bits from the integer m." }
-{ $example "USING: math.bitfields.lib prettyprint ;" "HEX: 123abcdef 16 bits .h" "cdef" } ;
-
-HELP: bitroll
-{ $values { "x" "an integer (input)" } { "s" "an integer (shift)" } { "w" "an integer (wrap)" } { "y" integer } }
-{ $description "Roll n by s bits to the left, wrapping around after w bits." }
-{ $examples
-    { $example "USING: math.bitfields.lib prettyprint ;" "1 -1 32 bitroll .b" "10000000000000000000000000000000" }
-    { $example "USING: math.bitfields.lib prettyprint ;" "HEX: ffff0000 8 32 bitroll .h" "ff0000ff" }
-} ;
-
diff --git a/extra/math/bitfields/lib/lib-tests.factor b/extra/math/bitfields/lib/lib-tests.factor
deleted file mode 100644
index c002240e69..0000000000
--- a/extra/math/bitfields/lib/lib-tests.factor
+++ /dev/null
@@ -1,14 +0,0 @@
-USING: math.bitfields.lib tools.test ;
-IN: math.bitfields.lib.test
-
-[ 0 ] [ 1 0 0 bitroll ] unit-test
-[ 1 ] [ 1 0 1 bitroll ] unit-test
-[ 1 ] [ 1 1 1 bitroll ] unit-test
-[ 1 ] [ 1 0 2 bitroll ] unit-test
-[ 1 ] [ 1 0 1 bitroll ] unit-test
-[ 1 ] [ 1 20 2 bitroll ] unit-test
-[ 1 ] [ 1 8 8 bitroll ] unit-test
-[ 1 ] [ 1 -8 8 bitroll ] unit-test
-[ 1 ] [ 1 -32 8 bitroll ] unit-test
-[ 128 ] [ 1 -1 8 bitroll ] unit-test
-[ 8 ] [ 1 3 32 bitroll ] unit-test
diff --git a/extra/math/bitfields/lib/lib.factor b/extra/math/bitfields/lib/lib.factor
deleted file mode 100644
index 72b33b9ae7..0000000000
--- a/extra/math/bitfields/lib/lib.factor
+++ /dev/null
@@ -1,30 +0,0 @@
-USING: hints kernel math ;
-IN: math.bitfields.lib
-
-: clear-bit ( x n -- y ) 2^ bitnot bitand ; foldable
-: set-bit ( x n -- y ) 2^ bitor ; foldable
-: bit-clear? ( x n -- ? ) 2^ bitand zero? ; foldable
-: unmask ( x n -- ? ) bitnot bitand ; foldable
-: unmask? ( x n -- ? ) unmask 0 > ; foldable
-: mask ( x n -- ? ) bitand ; foldable
-: mask? ( x n -- ? ) mask 0 > ; foldable
-: wrap ( m n -- m' ) 1- bitand ; foldable
-: bits ( m n -- m' ) 2^ wrap ; inline
-: mask-bit ( m n -- m' ) 1- 2^ mask ; inline
-
-: shift-mod ( n s w -- n )
-    >r shift r> 2^ wrap ; inline
-
-: bitroll ( x s w -- y )
-     [ wrap ] keep
-     [ shift-mod ]
-     [ [ - ] keep shift-mod ] 3bi bitor ; inline
-
-: bitroll-32 ( n s -- n' ) 32 bitroll ;
-
-HINTS: bitroll-32 bignum fixnum ;
-
-: bitroll-64 ( n s -- n' ) 64 bitroll ;
-
-HINTS: bitroll-64 bignum fixnum ;
-
diff --git a/extra/math/blas/cblas/authors.txt b/extra/math/blas/cblas/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/math/blas/cblas/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/math/blas/cblas/cblas.factor b/extra/math/blas/cblas/cblas.factor
new file mode 100644
index 0000000000..131007b9d0
--- /dev/null
+++ b/extra/math/blas/cblas/cblas.factor
@@ -0,0 +1,558 @@
+USING: alien alien.c-types alien.syntax kernel system combinators ;
+IN: math.blas.cblas
+
+<< "cblas" {
+    { [ os macosx? ] [ "libblas.dylib" "cdecl" add-library ] }
+    { [ os windows? ] [ "blas.dll" "cdecl" add-library ] }
+    { [ os openbsd? ] [ "libcblas.so" "cdecl" add-library ] }
+    [ "libblas.so" "cdecl" add-library ]
+} cond >>
+
+LIBRARY: cblas
+
+TYPEDEF: int CBLAS_ORDER
+: CblasRowMajor 101 ; inline
+: CblasColMajor 102 ; inline
+
+TYPEDEF: int CBLAS_TRANSPOSE
+: CblasNoTrans   111 ; inline
+: CblasTrans     112 ; inline
+: CblasConjTrans 113 ; inline
+
+TYPEDEF: int CBLAS_UPLO
+: CblasUpper 121 ; inline
+: CblasLower 122 ; inline
+
+TYPEDEF: int CBLAS_DIAG
+: CblasNonUnit 131 ; inline
+: CblasUnit    132 ; inline
+
+TYPEDEF: int CBLAS_SIDE
+: CblasLeft  141 ; inline
+: CblasRight 142 ; inline
+
+TYPEDEF: int CBLAS_INDEX
+
+C-STRUCT: CBLAS_C
+    { "float" "real" }
+    { "float" "imag" } ;
+C-STRUCT: CBLAS_Z
+    { "double" "real" }
+    { "double" "imag" } ;
+
+! Level 1 BLAS (scalar-vector and vector-vector)
+
+FUNCTION: float  cblas_sdsdot
+    ( int N, float    alpha, float*   X, int incX, float*   Y, int incY ) ;
+FUNCTION: double cblas_dsdot
+    ( int N,                 float*   X, int incX, float*   Y, int incY ) ;
+FUNCTION: float  cblas_sdot
+    ( int N,                 float*   X, int incX, float*   Y, int incY ) ;
+FUNCTION: double cblas_ddot
+    ( int N,                 double*  X, int incX, double*  Y, int incY ) ;
+
+FUNCTION: void   cblas_cdotu_sub
+    ( int N,                 CBLAS_C* X, int incX, CBLAS_C* Y, int incY, CBLAS_C* dotu ) ;
+FUNCTION: void   cblas_cdotc_sub
+    ( int N,                 CBLAS_C* X, int incX, CBLAS_C* Y, int incY, CBLAS_C* dotc ) ;
+
+FUNCTION: void   cblas_zdotu_sub
+    ( int N,                 CBLAS_Z* X, int incX, CBLAS_Z* Y, int incY, CBLAS_Z* dotu ) ;
+FUNCTION: void   cblas_zdotc_sub
+    ( int N,                 CBLAS_Z* X, int incX, CBLAS_Z* Y, int incY, CBLAS_Z* dotc ) ;
+
+FUNCTION: float  cblas_snrm2
+    ( int N,                 float*   X, int incX ) ;
+FUNCTION: float  cblas_sasum
+    ( int N,                 float*   X, int incX ) ;
+
+FUNCTION: double cblas_dnrm2
+    ( int N,                 double*  X, int incX ) ;
+FUNCTION: double cblas_dasum
+    ( int N,                 double*  X, int incX ) ;
+
+FUNCTION: float  cblas_scnrm2
+    ( int N,                 CBLAS_C* X, int incX ) ;
+FUNCTION: float  cblas_scasum
+    ( int N,                 CBLAS_C* X, int incX ) ;
+
+FUNCTION: double cblas_dznrm2
+    ( int N,                 CBLAS_Z* X, int incX ) ;
+FUNCTION: double cblas_dzasum
+    ( int N,                 CBLAS_Z* X, int incX ) ;
+
+FUNCTION: CBLAS_INDEX cblas_isamax
+    ( int N,                 float*   X, int incX ) ;
+FUNCTION: CBLAS_INDEX cblas_idamax
+    ( int N,                 double*  X, int incX ) ;
+FUNCTION: CBLAS_INDEX cblas_icamax
+    ( int N,                 CBLAS_C* X, int incX ) ;
+FUNCTION: CBLAS_INDEX cblas_izamax
+    ( int N,                 CBLAS_Z* X, int incX ) ;
+
+FUNCTION: void cblas_sswap
+    ( int N,                 float*   X, int incX, float*   Y, int incY ) ;
+FUNCTION: void cblas_scopy
+    ( int N,                 float*   X, int incX, float*   Y, int incY ) ;
+FUNCTION: void cblas_saxpy
+    ( int N, float    alpha, float*   X, int incX, float*   Y, int incY ) ;
+
+FUNCTION: void cblas_dswap
+    ( int N,                 double*  X, int incX, double*  Y, int incY ) ;
+FUNCTION: void cblas_dcopy
+    ( int N,                 double*  X, int incX, double*  Y, int incY ) ;
+FUNCTION: void cblas_daxpy
+    ( int N, double   alpha, double*  X, int incX, double*  Y, int incY ) ;
+
+FUNCTION: void cblas_cswap
+    ( int N,                 CBLAS_C* X, int incX, CBLAS_C* Y, int incY ) ;
+FUNCTION: void cblas_ccopy
+    ( int N,                 CBLAS_C* X, int incX, CBLAS_C* Y, int incY ) ;
+FUNCTION: void cblas_caxpy
+    ( int N, CBLAS_C* alpha, CBLAS_C* X, int incX, CBLAS_C* Y, int incY ) ;
+
+FUNCTION: void cblas_zswap
+    ( int N,                 CBLAS_Z* X, int incX, CBLAS_Z* Y, int incY ) ;
+FUNCTION: void cblas_zcopy
+    ( int N,                 CBLAS_Z* X, int incX, CBLAS_Z* Y, int incY ) ;
+FUNCTION: void cblas_zaxpy
+    ( int N, CBLAS_Z* alpha, CBLAS_Z* X, int incX, CBLAS_Z* Y, int incY ) ;
+
+FUNCTION: void cblas_sscal
+    ( int N, float    alpha, float*   X, int incX ) ;
+FUNCTION: void cblas_dscal
+    ( int N, double   alpha, double*  X, int incX ) ;
+FUNCTION: void cblas_cscal
+    ( int N, CBLAS_C* alpha, CBLAS_C* X, int incX ) ;
+FUNCTION: void cblas_zscal
+    ( int N, CBLAS_Z* alpha, CBLAS_Z* X, int incX ) ;
+FUNCTION: void cblas_csscal
+    ( int N, float    alpha, CBLAS_C* X, int incX ) ;
+FUNCTION: void cblas_zdscal
+    ( int N, double   alpha, CBLAS_Z* X, int incX ) ;
+
+FUNCTION: void cblas_srotg
+    ( float* a, float* b, float* c, float* s ) ;
+FUNCTION: void cblas_srotmg
+    ( float* d1, float* d2, float* b1, float b2, float* P ) ;
+FUNCTION: void cblas_srot
+    ( int N, float* X, int incX, float* Y, int incY, float c, float s ) ;
+FUNCTION: void cblas_srotm
+    ( int N, float* X, int incX, float* Y, int incY, float* P ) ;
+
+FUNCTION: void cblas_drotg
+    ( double* a, double* b, double* c, double* s ) ;
+FUNCTION: void cblas_drotmg
+    ( double* d1, double* d2, double* b1, double b2, double* P ) ;
+FUNCTION: void cblas_drot
+    ( int N, double* X, int incX, double* Y, int incY, double c, double s ) ;
+FUNCTION: void cblas_drotm
+    ( int N, double* X, int incX, double* Y, int incY, double* P ) ;
+ 
+! Level 2 BLAS (matrix-vector)
+
+FUNCTION: void cblas_sgemv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 float alpha, float* A, int lda,
+                 float* X, int incX, float beta,
+                 float* Y, int incY ) ;
+FUNCTION: void cblas_sgbmv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 int KL, int KU, float alpha,
+                 float* A, int lda, float* X,
+                 int incX, float beta, float* Y, int incY ) ;
+FUNCTION: void cblas_strmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, float* A, int lda,
+                 float* X, int incX ) ;
+FUNCTION: void cblas_stbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, float* A, int lda,
+                 float* X, int incX ) ;
+FUNCTION: void cblas_stpmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, float* Ap, float* X, int incX ) ;
+FUNCTION: void cblas_strsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, float* A, int lda, float* X,
+                 int incX ) ;
+FUNCTION: void cblas_stbsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, float* A, int lda,
+                 float* X, int incX ) ;
+FUNCTION: void cblas_stpsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, float* Ap, float* X, int incX ) ;
+
+FUNCTION: void cblas_dgemv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 double alpha, double* A, int lda,
+                 double* X, int incX, double beta,
+                 double* Y, int incY ) ;
+FUNCTION: void cblas_dgbmv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 int KL, int KU, double alpha,
+                 double* A, int lda, double* X,
+                 int incX, double beta, double* Y, int incY ) ;
+FUNCTION: void cblas_dtrmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, double* A, int lda,
+                 double* X, int incX ) ;
+FUNCTION: void cblas_dtbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, double* A, int lda,
+                 double* X, int incX ) ;
+FUNCTION: void cblas_dtpmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, double* Ap, double* X, int incX ) ;
+FUNCTION: void cblas_dtrsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, double* A, int lda, double* X,
+                 int incX ) ;
+FUNCTION: void cblas_dtbsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, double* A, int lda,
+                 double* X, int incX ) ;
+FUNCTION: void cblas_dtpsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, double* Ap, double* X, int incX ) ;
+
+FUNCTION: void cblas_cgemv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* X, int incX, void* beta,
+                 void* Y, int incY ) ;
+FUNCTION: void cblas_cgbmv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 int KL, int KU, void* alpha,
+                 void* A, int lda, void* X,
+                 int incX, void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_ctrmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* A, int lda,
+                 void* X, int incX ) ;
+FUNCTION: void cblas_ctbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, void* A, int lda,
+                 void* X, int incX ) ;
+FUNCTION: void cblas_ctpmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* Ap, void* X, int incX ) ;
+FUNCTION: void cblas_ctrsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* A, int lda, void* X,
+                 int incX ) ;
+FUNCTION: void cblas_ctbsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, void* A, int lda,
+                 void* X, int incX ) ;
+FUNCTION: void cblas_ctpsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* Ap, void* X, int incX ) ;
+
+FUNCTION: void cblas_zgemv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* X, int incX, void* beta,
+                 void* Y, int incY ) ;
+FUNCTION: void cblas_zgbmv ( CBLAS_ORDER Order,
+                 CBLAS_TRANSPOSE TransA, int M, int N,
+                 int KL, int KU, void* alpha,
+                 void* A, int lda, void* X,
+                 int incX, void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_ztrmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* A, int lda,
+                 void* X, int incX ) ;
+FUNCTION: void cblas_ztbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, void* A, int lda,
+                 void* X, int incX ) ;
+FUNCTION: void cblas_ztpmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* Ap, void* X, int incX ) ;
+FUNCTION: void cblas_ztrsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* A, int lda, void* X,
+                 int incX ) ;
+FUNCTION: void cblas_ztbsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, int K, void* A, int lda,
+                 void* X, int incX ) ;
+FUNCTION: void cblas_ztpsv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE TransA, CBLAS_DIAG Diag,
+                 int N, void* Ap, void* X, int incX ) ;
+
+
+FUNCTION: void cblas_ssymv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, float alpha, float* A,
+                 int lda, float* X, int incX,
+                 float beta, float* Y, int incY ) ;
+FUNCTION: void cblas_ssbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, int K, float alpha, float* A,
+                 int lda, float* X, int incX,
+                 float beta, float* Y, int incY ) ;
+FUNCTION: void cblas_sspmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, float alpha, float* Ap,
+                 float* X, int incX,
+                 float beta, float* Y, int incY ) ;
+FUNCTION: void cblas_sger ( CBLAS_ORDER Order, int M, int N,
+                float alpha, float* X, int incX,
+                float* Y, int incY, float* A, int lda ) ;
+FUNCTION: void cblas_ssyr ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, float alpha, float* X,
+                int incX, float* A, int lda ) ;
+FUNCTION: void cblas_sspr ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, float alpha, float* X,
+                int incX, float* Ap ) ;
+FUNCTION: void cblas_ssyr2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, float alpha, float* X,
+                int incX, float* Y, int incY, float* A,
+                int lda ) ;
+FUNCTION: void cblas_sspr2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, float alpha, float* X,
+                int incX, float* Y, int incY, float* A ) ;
+
+FUNCTION: void cblas_dsymv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, double alpha, double* A,
+                 int lda, double* X, int incX,
+                 double beta, double* Y, int incY ) ;
+FUNCTION: void cblas_dsbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, int K, double alpha, double* A,
+                 int lda, double* X, int incX,
+                 double beta, double* Y, int incY ) ;
+FUNCTION: void cblas_dspmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, double alpha, double* Ap,
+                 double* X, int incX,
+                 double beta, double* Y, int incY ) ;
+FUNCTION: void cblas_dger ( CBLAS_ORDER Order, int M, int N,
+                double alpha, double* X, int incX,
+                double* Y, int incY, double* A, int lda ) ;
+FUNCTION: void cblas_dsyr ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, double alpha, double* X,
+                int incX, double* A, int lda ) ;
+FUNCTION: void cblas_dspr ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, double alpha, double* X,
+                int incX, double* Ap ) ;
+FUNCTION: void cblas_dsyr2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, double alpha, double* X,
+                int incX, double* Y, int incY, double* A,
+                int lda ) ;
+FUNCTION: void cblas_dspr2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, double alpha, double* X,
+                int incX, double* Y, int incY, double* A ) ;
+
+
+FUNCTION: void cblas_chemv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, void* alpha, void* A,
+                 int lda, void* X, int incX,
+                 void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_chbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, int K, void* alpha, void* A,
+                 int lda, void* X, int incX,
+                 void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_chpmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, void* alpha, void* Ap,
+                 void* X, int incX,
+                 void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_cgeru ( CBLAS_ORDER Order, int M, int N,
+                 void* alpha, void* X, int incX,
+                 void* Y, int incY, void* A, int lda ) ;
+FUNCTION: void cblas_cgerc ( CBLAS_ORDER Order, int M, int N,
+                 void* alpha, void* X, int incX,
+                 void* Y, int incY, void* A, int lda ) ;
+FUNCTION: void cblas_cher ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, float alpha, void* X, int incX,
+                void* A, int lda ) ;
+FUNCTION: void cblas_chpr ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, float alpha, void* X,
+                int incX, void* A ) ;
+FUNCTION: void cblas_cher2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo, int N,
+                void* alpha, void* X, int incX,
+                void* Y, int incY, void* A, int lda ) ;
+FUNCTION: void cblas_chpr2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo, int N,
+                void* alpha, void* X, int incX,
+                void* Y, int incY, void* Ap ) ;
+
+FUNCTION: void cblas_zhemv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, void* alpha, void* A,
+                 int lda, void* X, int incX,
+                 void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_zhbmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, int K, void* alpha, void* A,
+                 int lda, void* X, int incX,
+                 void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_zhpmv ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 int N, void* alpha, void* Ap,
+                 void* X, int incX,
+                 void* beta, void* Y, int incY ) ;
+FUNCTION: void cblas_zgeru ( CBLAS_ORDER Order, int M, int N,
+                 void* alpha, void* X, int incX,
+                 void* Y, int incY, void* A, int lda ) ;
+FUNCTION: void cblas_zgerc ( CBLAS_ORDER Order, int M, int N,
+                 void* alpha, void* X, int incX,
+                 void* Y, int incY, void* A, int lda ) ;
+FUNCTION: void cblas_zher ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, double alpha, void* X, int incX,
+                void* A, int lda ) ;
+FUNCTION: void cblas_zhpr ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                int N, double alpha, void* X,
+                int incX, void* A ) ;
+FUNCTION: void cblas_zher2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo, int N,
+                void* alpha, void* X, int incX,
+                void* Y, int incY, void* A, int lda ) ;
+FUNCTION: void cblas_zhpr2 ( CBLAS_ORDER Order, CBLAS_UPLO Uplo, int N,
+                void* alpha, void* X, int incX,
+                void* Y, int incY, void* Ap ) ;
+
+! Level 3 BLAS (matrix-matrix) 
+
+FUNCTION: void cblas_sgemm ( CBLAS_ORDER Order, CBLAS_TRANSPOSE TransA,
+                 CBLAS_TRANSPOSE TransB, int M, int N,
+                 int K, float alpha, float* A,
+                 int lda, float* B, int ldb,
+                 float beta, float* C, int ldc ) ;
+FUNCTION: void cblas_ssymm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, int M, int N,
+                 float alpha, float* A, int lda,
+                 float* B, int ldb, float beta,
+                 float* C, int ldc ) ;
+FUNCTION: void cblas_ssyrk ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE Trans, int N, int K,
+                 float alpha, float* A, int lda,
+                 float beta, float* C, int ldc ) ;
+FUNCTION: void cblas_ssyr2k ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                  CBLAS_TRANSPOSE Trans, int N, int K,
+                  float alpha, float* A, int lda,
+                  float* B, int ldb, float beta,
+                  float* C, int ldc ) ;
+FUNCTION: void cblas_strmm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 float alpha, float* A, int lda,
+                 float* B, int ldb ) ;
+FUNCTION: void cblas_strsm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 float alpha, float* A, int lda,
+                 float* B, int ldb ) ;
+
+FUNCTION: void cblas_dgemm ( CBLAS_ORDER Order, CBLAS_TRANSPOSE TransA,
+                 CBLAS_TRANSPOSE TransB, int M, int N,
+                 int K, double alpha, double* A,
+                 int lda, double* B, int ldb,
+                 double beta, double* C, int ldc ) ;
+FUNCTION: void cblas_dsymm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, int M, int N,
+                 double alpha, double* A, int lda,
+                 double* B, int ldb, double beta,
+                 double* C, int ldc ) ;
+FUNCTION: void cblas_dsyrk ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE Trans, int N, int K,
+                 double alpha, double* A, int lda,
+                 double beta, double* C, int ldc ) ;
+FUNCTION: void cblas_dsyr2k ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                  CBLAS_TRANSPOSE Trans, int N, int K,
+                  double alpha, double* A, int lda,
+                  double* B, int ldb, double beta,
+                  double* C, int ldc ) ;
+FUNCTION: void cblas_dtrmm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 double alpha, double* A, int lda,
+                 double* B, int ldb ) ;
+FUNCTION: void cblas_dtrsm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 double alpha, double* A, int lda,
+                 double* B, int ldb ) ;
+
+FUNCTION: void cblas_cgemm ( CBLAS_ORDER Order, CBLAS_TRANSPOSE TransA,
+                 CBLAS_TRANSPOSE TransB, int M, int N,
+                 int K, void* alpha, void* A,
+                 int lda, void* B, int ldb,
+                 void* beta, void* C, int ldc ) ;
+FUNCTION: void cblas_csymm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb, void* beta,
+                 void* C, int ldc ) ;
+FUNCTION: void cblas_csyrk ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE Trans, int N, int K,
+                 void* alpha, void* A, int lda,
+                 void* beta, void* C, int ldc ) ;
+FUNCTION: void cblas_csyr2k ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                  CBLAS_TRANSPOSE Trans, int N, int K,
+                  void* alpha, void* A, int lda,
+                  void* B, int ldb, void* beta,
+                  void* C, int ldc ) ;
+FUNCTION: void cblas_ctrmm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb ) ;
+FUNCTION: void cblas_ctrsm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb ) ;
+
+FUNCTION: void cblas_zgemm ( CBLAS_ORDER Order, CBLAS_TRANSPOSE TransA,
+                 CBLAS_TRANSPOSE TransB, int M, int N,
+                 int K, void* alpha, void* A,
+                 int lda, void* B, int ldb,
+                 void* beta, void* C, int ldc ) ;
+FUNCTION: void cblas_zsymm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb, void* beta,
+                 void* C, int ldc ) ;
+FUNCTION: void cblas_zsyrk ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE Trans, int N, int K,
+                 void* alpha, void* A, int lda,
+                 void* beta, void* C, int ldc ) ;
+FUNCTION: void cblas_zsyr2k ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                  CBLAS_TRANSPOSE Trans, int N, int K,
+                  void* alpha, void* A, int lda,
+                  void* B, int ldb, void* beta,
+                  void* C, int ldc ) ;
+FUNCTION: void cblas_ztrmm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb ) ;
+FUNCTION: void cblas_ztrsm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, CBLAS_TRANSPOSE TransA,
+                 CBLAS_DIAG Diag, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb ) ;
+
+FUNCTION: void cblas_chemm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb, void* beta,
+                 void* C, int ldc ) ;
+FUNCTION: void cblas_cherk ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE Trans, int N, int K,
+                 float alpha, void* A, int lda,
+                 float beta, void* C, int ldc ) ;
+FUNCTION: void cblas_cher2k ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                  CBLAS_TRANSPOSE Trans, int N, int K,
+                  void* alpha, void* A, int lda,
+                  void* B, int ldb, float beta,
+                  void* C, int ldc ) ;
+FUNCTION: void cblas_zhemm ( CBLAS_ORDER Order, CBLAS_SIDE Side,
+                 CBLAS_UPLO Uplo, int M, int N,
+                 void* alpha, void* A, int lda,
+                 void* B, int ldb, void* beta,
+                 void* C, int ldc ) ;
+FUNCTION: void cblas_zherk ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                 CBLAS_TRANSPOSE Trans, int N, int K,
+                 double alpha, void* A, int lda,
+                 double beta, void* C, int ldc ) ;
+FUNCTION: void cblas_zher2k ( CBLAS_ORDER Order, CBLAS_UPLO Uplo,
+                  CBLAS_TRANSPOSE Trans, int N, int K,
+                  void* alpha, void* A, int lda,
+                  void* B, int ldb, double beta,
+                  void* C, int ldc ) ;
+
diff --git a/extra/math/blas/cblas/summary.txt b/extra/math/blas/cblas/summary.txt
new file mode 100644
index 0000000000..c72e78eb0d
--- /dev/null
+++ b/extra/math/blas/cblas/summary.txt
@@ -0,0 +1 @@
+Low-level bindings to the C Basic Linear Algebra Subroutines (BLAS) library
diff --git a/extra/math/blas/cblas/tags.txt b/extra/math/blas/cblas/tags.txt
new file mode 100644
index 0000000000..5118958180
--- /dev/null
+++ b/extra/math/blas/cblas/tags.txt
@@ -0,0 +1,3 @@
+math
+bindings
+unportable
diff --git a/extra/math/blas/matrices/authors.txt b/extra/math/blas/matrices/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/math/blas/matrices/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/math/blas/matrices/matrices-docs.factor b/extra/math/blas/matrices/matrices-docs.factor
new file mode 100644
index 0000000000..dc6a86017a
--- /dev/null
+++ b/extra/math/blas/matrices/matrices-docs.factor
@@ -0,0 +1,245 @@
+USING: alien byte-arrays help.markup help.syntax math math.blas.vectors sequences strings ;
+IN: math.blas.matrices
+
+ARTICLE: "math.blas-summary" "Basic Linear Algebra Subroutines (BLAS) interface"
+"Factor provides an interface to high-performance vector and matrix math routines available in the system's BLAS library. A set of specialized types are provided for handling packed, unboxed vector data:"
+{ $subsection "math.blas-types" }
+"Scalar-vector and vector-vector operations are available in the " { $vocab-link "math.blas.vectors" } " vocabulary:"
+{ $subsection "math.blas.vectors" }
+"Vector-matrix and matrix-matrix operations are available in the " { $vocab-link "math.blas.matrices" } " vocabulary:"
+{ $subsection "math.blas.matrices" }
+"The low-level BLAS C interface can be accessed directly through the " { $vocab-link "math.blas.cblas" } " vocabulary." ;
+
+ARTICLE: "math.blas-types" "BLAS interface types"
+"BLAS vectors come in single- and double-precision, real and complex flavors:"
+{ $subsection float-blas-vector }
+{ $subsection double-blas-vector }
+{ $subsection float-complex-blas-vector }
+{ $subsection double-complex-blas-vector }
+"These vector types all follow the " { $link sequence } " protocol. In addition, there are corresponding types for matrix data:"
+{ $subsection float-blas-matrix }
+{ $subsection double-blas-matrix }
+{ $subsection float-complex-blas-matrix }
+{ $subsection double-complex-blas-matrix } 
+"Syntax words are provided for constructing literal vectors and matrices in the " { $vocab-link "math.blas.syntax" } " vocabulary:"
+{ $subsection "math.blas.syntax" }
+"There are BOA constructors for all vector and matrix types, which provide the most flexibility in specifying memory layout:"
+{ $subsection <float-blas-vector> }
+{ $subsection <double-blas-vector> }
+{ $subsection <float-complex-blas-vector> }
+{ $subsection <double-complex-blas-vector> }
+{ $subsection <float-blas-matrix> }
+{ $subsection <double-blas-matrix> }
+{ $subsection <float-complex-blas-matrix> }
+{ $subsection <double-complex-blas-matrix> }
+"For the simple case of creating a dense, zero-filled vector or matrix, simple empty object constructors are provided:"
+{ $subsection <empty-vector> }
+{ $subsection <empty-matrix> }
+"BLAS vectors and matrices can also be constructed from other Factor sequences:"
+{ $subsection >float-blas-vector }
+{ $subsection >double-blas-vector }
+{ $subsection >float-complex-blas-vector }
+{ $subsection >double-complex-blas-vector }
+{ $subsection >float-blas-matrix }
+{ $subsection >double-blas-matrix }
+{ $subsection >float-complex-blas-matrix }
+{ $subsection >double-complex-blas-matrix } ;
+
+ARTICLE: "math.blas.matrices" "BLAS interface matrix operations"
+"Transposing and slicing matrices:"
+{ $subsection Mtranspose }
+{ $subsection Mrows }
+{ $subsection Mcols }
+{ $subsection Msub }
+"Matrix-vector products:"
+{ $subsection n*M.V+n*V! }
+{ $subsection n*M.V+n*V }
+{ $subsection n*M.V }
+{ $subsection M.V }
+"Vector outer products:"
+{ $subsection n*V(*)V+M! }
+{ $subsection n*V(*)Vconj+M! }
+{ $subsection n*V(*)V+M }
+{ $subsection n*V(*)Vconj+M }
+{ $subsection n*V(*)V }
+{ $subsection n*V(*)Vconj }
+{ $subsection V(*) }
+{ $subsection V(*)conj }
+"Matrix products:"
+{ $subsection n*M.M+n*M! }
+{ $subsection n*M.M+n*M }
+{ $subsection n*M.M }
+{ $subsection M. }
+"Scalar-matrix products:"
+{ $subsection n*M! }
+{ $subsection n*M }
+{ $subsection M*n }
+{ $subsection M/n } ;
+
+ABOUT: "math.blas.matrices"
+
+HELP: blas-matrix-base
+{ $class-description "The base class for all BLAS matrix types. Objects of this type should not be created directly; instead, instantiate one of the typed subclasses:"
+{ $list
+    { { $link float-blas-matrix } }
+    { { $link double-blas-matrix } }
+    { { $link float-complex-blas-matrix } }
+    { { $link double-complex-blas-matrix } }
+}
+"All of these subclasses share the same tuple layout:"
+{ $list
+    { { $snippet "data" } " contains an alien pointer referencing or byte-array containing a packed, column-major array of float, double, float complex, or double complex values;" }
+    { { $snippet "ld" } " indicates the distance, in elements, between matrix columns;" }
+    { { $snippet "rows" } " and " { $snippet "cols" } " indicate the number of significant rows and columns in the matrix;" }
+    { "and " { $snippet "transpose" } ", if set to a true value, indicates that the matrix should be treated as transposed relative to its in-memory representation." }
+} } ;
+
+{ blas-vector-base blas-matrix-base } related-words
+
+HELP: float-blas-matrix
+{ $class-description "A matrix of single-precision floating-point values. For details on the tuple layout, see " { $link blas-matrix-base } "." } ;
+HELP: double-blas-matrix
+{ $class-description "A matrix of double-precision floating-point values. For details on the tuple layout, see " { $link blas-matrix-base } "." } ;
+HELP: float-complex-blas-matrix
+{ $class-description "A matrix of single-precision floating-point complex values. Complex values are stored in memory as two consecutive float values, real part then imaginary part. For details on the tuple layout, see " { $link blas-matrix-base } "." } ;
+HELP: double-complex-blas-matrix
+{ $class-description "A matrix of double-precision floating-point complex values. Complex values are stored in memory as two consecutive float values, real part then imaginary part. For details on the tuple layout, see " { $link blas-matrix-base } "." } ;
+
+{
+    float-blas-matrix double-blas-matrix float-complex-blas-matrix double-complex-blas-matrix
+    float-blas-vector double-blas-vector float-complex-blas-vector double-complex-blas-vector
+} related-words
+
+HELP: Mwidth
+{ $values { "matrix" blas-matrix-base } { "width" integer } }
+{ $description "Returns the number of columns in " { $snippet "matrix" } "." } ;
+
+HELP: Mheight
+{ $values { "matrix" blas-matrix-base } { "height" integer } }
+{ $description "Returns the number of rows in " { $snippet "matrix" } "." } ;
+
+{ Mwidth Mheight } related-words
+
+HELP: n*M.V+n*V!
+{ $values { "alpha" number } { "A" blas-matrix-base } { "x" blas-vector-base } { "beta" number } { "y" blas-vector-base } { "y=alpha*A.x+b*y" blas-vector-base } }
+{ $description "Calculate the matrix-vector product " { $snippet "αAx + βy" } ", and overwrite the current contents of " { $snippet "y" } " with the result. The width of " { $snippet "A" } " must match the length of " { $snippet "x" } ", and the height must match the length of " { $snippet "y" } ". Corresponds to the xGEMV routines in BLAS." }
+{ $side-effects "y" } ;
+
+HELP: n*V(*)V+M!
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "A" blas-matrix-base } { "A=alpha*x(*)y+A" blas-matrix-base } }
+{ $description "Calculate the outer product " { $snippet "αx⊗y + A" } " and overwrite the current contents of A with the result. The width of " { $snippet "A" } " must match the length of " { $snippet "y" } ", and its height must match the length of " { $snippet "x" } ". Corresponds to the xGER and xGERU routines in BLAS." }
+{ $side-effects "A" } ;
+
+HELP: n*V(*)Vconj+M!
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "A" blas-matrix-base } { "A=alpha*x(*)yconj+A" blas-matrix-base } }
+{ $description "Calculate the conjugate outer product " { $snippet "αx⊗y̅ + A" } " and overwrite the current contents of A with the result. The width of " { $snippet "A" } " must match the length of " { $snippet "y" } ", and its height must match the length of " { $snippet "x" } ". Corresponds to the xGERC routines in BLAS." }
+{ $side-effects "A" } ;
+
+HELP: n*M.M+n*M!
+{ $values { "alpha" number } { "A" blas-matrix-base } { "B" blas-matrix-base } { "beta" number } { "C" blas-matrix-base } { "C=alpha*A.B+beta*C" blas-matrix-base } }
+{ $description "Calculate the matrix product " { $snippet "αAB + βC" } " and overwrite the current contents of C with the result. The width of " { $snippet "A" } " and the height of " { $snippet "B" } " must match, as must the heights of " { $snippet "A" } " and " { $snippet "C" } ", and the widths of " { $snippet "B" } " and " { $snippet "C" } ". Corresponds to the xGEMM routines in BLAS." }
+{ $side-effects "C" } ;
+
+HELP: <empty-matrix>
+{ $values { "rows" integer } { "cols" integer } { "exemplar" blas-vector-base blas-matrix-base } { "matrix" blas-matrix-base } }
+{ $description "Create a matrix of all zeros with the given dimensions and the same element type as " { $snippet "exemplar" } "." } ;
+
+{ <zero-vector> <empty-vector> <empty-matrix> } related-words
+
+HELP: n*M.V+n*V
+{ $values { "alpha" number } { "A" blas-matrix-base } { "x" blas-vector-base } { "beta" number } { "y" blas-vector-base } { "alpha*A.x+b*y" blas-vector-base } }
+{ $description "Calculate the matrix-vector product " { $snippet "αAx + βy" } " and return a freshly allocated vector containing the result. The width of " { $snippet "A" } " must match the length of " { $snippet "x" } ", and the height must match the length of " { $snippet "y" } ". The returned vector will have the same length as " { $snippet "y" } ". Corresponds to the xGEMV routines in BLAS." } ;
+
+HELP: n*V(*)V+M
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "A" blas-matrix-base } { "alpha*x(*)y+A" blas-matrix-base } }
+{ $description "Calculate the outer product " { $snippet "αx⊗y + A" } " and return a freshly allocated matrix containing the result. The width of " { $snippet "A" } " must match the length of " { $snippet "y" } ", and its height must match the length of " { $snippet "x" } ". The returned matrix will have the same dimensions as " { $snippet "A" } ". Corresponds to the xGER and xGERU routines in BLAS." } ;
+
+HELP: n*V(*)Vconj+M
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "A" blas-matrix-base } { "alpha*x(*)yconj+A" blas-matrix-base } }
+{ $description "Calculate the conjugate outer product " { $snippet "αx⊗y̅ + A" } " and return a freshly allocated matrix containing the result. The width of " { $snippet "A" } " must match the length of " { $snippet "y" } ", and its height must match the length of " { $snippet "x" } ". The returned matrix will have the same dimensions as " { $snippet "A" } ". Corresponds to the xGERC routines in BLAS." } ;
+
+HELP: n*M.M+n*M
+{ $values { "alpha" number } { "A" blas-matrix-base } { "B" blas-matrix-base } { "beta" number } { "C" blas-matrix-base } { "alpha*A.B+beta*C" blas-matrix-base } }
+{ $description "Calculate the matrix product " { $snippet "αAB + βC" } " and overwrite the current contents of C with the result. The width of " { $snippet "A" } " and the height of " { $snippet "B" } " must match, as must the heights of " { $snippet "A" } " and " { $snippet "C" } ", and the widths of " { $snippet "B" } " and " { $snippet "C" } ". Corresponds to the xGEMM routines in BLAS." } ;
+
+HELP: n*M.V
+{ $values { "alpha" number } { "A" blas-matrix-base } { "x" blas-vector-base } { "alpha*A.x" blas-vector-base } }
+{ $description "Calculate the matrix-vector product " { $snippet "αAx" } " and return a freshly allocated vector containing the result. The width of " { $snippet "A" } " must match the length of " { $snippet "x" } ". The length of the returned vector will match the height of " { $snippet "A" } ". Corresponds to the xGEMV routines in BLAS." } ;
+
+HELP: M.V
+{ $values { "A" blas-matrix-base } { "x" blas-vector-base } { "A.x" blas-vector-base } }
+{ $description "Calculate the matrix-vector product " { $snippet "Ax" } " and return a freshly allocated vector containing the result. The width of " { $snippet "A" } " must match the length of " { $snippet "x" } ". The length of the returned vector will match the height of " { $snippet "A" } ". Corresponds to the xGEMV routines in BLAS." } ;
+
+{ n*M.V+n*V! n*M.V+n*V n*M.V M.V } related-words
+
+HELP: n*V(*)V
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "alpha*x(*)y" blas-matrix-base } }
+{ $description "Calculate the outer product " { $snippet "αx⊗y" } " and return a freshly allocated matrix containing the result. The returned matrix's height will match the length of " { $snippet "x" } ", and its width will match the length of " { $snippet "y" } ". Corresponds to the xGER and xGERU routines in BLAS." } ;
+
+HELP: n*V(*)Vconj
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "alpha*x(*)yconj" blas-matrix-base } }
+{ $description "Calculate the outer product " { $snippet "αx⊗y̅" } " and return a freshly allocated matrix containing the result. The returned matrix's height will match the length of " { $snippet "x" } ", and its width will match the length of " { $snippet "y" } ". Corresponds to the xGERC routines in BLAS." } ;
+
+HELP: V(*)
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "x(*)y" blas-matrix-base } }
+{ $description "Calculate the outer product " { $snippet "x⊗y" } " and return a freshly allocated matrix containing the result. The returned matrix's height will match the length of " { $snippet "x" } ", and its width will match the length of " { $snippet "y" } ". Corresponds to the xGER and xGERU routines in BLAS." } ;
+
+HELP: V(*)conj
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "x(*)yconj" blas-matrix-base } }
+{ $description "Calculate the conjugate outer product " { $snippet "x⊗y̅" } " and return a freshly allocated matrix containing the result. The returned matrix's height will match the length of " { $snippet "x" } ", and its width will match the length of " { $snippet "y" } ". Corresponds to the xGERC routines in BLAS." } ;
+
+{ n*V(*)V+M! n*V(*)Vconj+M! n*V(*)V+M n*V(*)Vconj+M n*V(*)V n*V(*)Vconj V(*) V(*)conj V. V.conj } related-words
+
+HELP: n*M.M
+{ $values { "alpha" number } { "A" blas-matrix-base } { "B" blas-matrix-base } { "alpha*A.B" blas-matrix-base } }
+{ $description "Calculate the matrix product " { $snippet "αAB" } " and return a freshly allocated matrix containing the result. The width of " { $snippet "A" } " and the height of " { $snippet "B" } " must match. The returned matrix's height will be the same as " { $snippet "A" } "'s, and its width will match " { $snippet "B" } "'s. Corresponds to the xGEMM routines in BLAS." } ;
+
+HELP: M.
+{ $values { "A" blas-matrix-base } { "B" blas-matrix-base } { "A.B" blas-matrix-base } }
+{ $description "Calculate the matrix product " { $snippet "AB" } " and return a freshly allocated matrix containing the result. The width of " { $snippet "A" } " and the height of " { $snippet "B" } " must match. The returned matrix's height will be the same as " { $snippet "A" } "'s, and its width will match " { $snippet "B" } "'s. Corresponds to the xGEMM routines in BLAS." } ;
+
+{ n*M.M+n*M! n*M.M+n*M n*M.M M. } related-words
+
+HELP: Msub
+{ $values { "matrix" blas-matrix-base } { "row" integer } { "col" integer } { "height" integer } { "width" integer } { "sub" blas-matrix-base } }
+{ $description "Select a rectangular submatrix of " { $snippet "matrix" } " with the given dimensions. The returned submatrix will share the parent matrix's storage." } ;
+
+HELP: Mrows
+{ $values { "A" blas-matrix-base } { "rows" sequence } }
+{ $description "Return a sequence of BLAS vectors representing the rows of " { $snippet "matrix" } ". Each vector will share the parent matrix's storage." } ;
+
+HELP: Mcols
+{ $values { "A" blas-matrix-base } { "cols" sequence } }
+{ $description "Return a sequence of BLAS vectors representing the columns of " { $snippet "matrix" } ". Each vector will share the parent matrix's storage." } ;
+
+HELP: n*M!
+{ $values { "n" number } { "A" blas-matrix-base } { "A=n*A" blas-matrix-base } }
+{ $description "Calculate the scalar-matrix product " { $snippet "nA" } " and overwrite the current contents of A with the result." }
+{ $side-effects "A" } ;
+
+HELP: n*M
+{ $values { "n" number } { "A" blas-matrix-base } { "n*A" blas-matrix-base } }
+{ $description "Calculate the scalar-matrix product " { $snippet "nA" } " and return a freshly allocated matrix with the same dimensions as " { $snippet "A" } " containing the result." } ;
+
+HELP: M*n
+{ $values { "A" blas-matrix-base } { "n" number } { "A*n" blas-matrix-base } }
+{ $description "Calculate the scalar-matrix product " { $snippet "nA" } " and return a freshly allocated matrix with the same dimensions as " { $snippet "A" } " containing the result." } ;
+
+HELP: M/n
+{ $values { "A" blas-matrix-base } { "n" number } { "A/n" blas-matrix-base } }
+{ $description "Calculate the scalar-matrix product " { $snippet "(1/n)A" } " and return a freshly allocated matrix with the same dimensions as " { $snippet "A" } " containing the result." } ;
+
+{ n*M! n*M M*n M/n } related-words
+
+HELP: Mtranspose
+{ $values { "matrix" blas-matrix-base } { "matrix^T" blas-matrix-base } }
+{ $description "Returns the transpose of " { $snippet "matrix" } ". The returned matrix shares storage with the original matrix." } ;
+
+HELP: element-type
+{ $values { "v" blas-vector-base blas-matrix-base } { "type" string } }
+{ $description "Return the C type of the elements in the given BLAS vector or matrix." } ;
+
+HELP: <empty-vector>
+{ $values { "length" "The length of the new vector" } { "exemplar" blas-vector-base blas-matrix-base } { "vector" blas-vector-base } }
+{ $description "Return a vector of zeros with the given " { $snippet "length" } " and the same element type as " { $snippet "v" } "." } ;
+
diff --git a/extra/math/blas/matrices/matrices-tests.factor b/extra/math/blas/matrices/matrices-tests.factor
new file mode 100644
index 0000000000..dabf3c3ee9
--- /dev/null
+++ b/extra/math/blas/matrices/matrices-tests.factor
@@ -0,0 +1,710 @@
+USING: kernel math.blas.matrices math.blas.vectors math.blas.syntax
+sequences tools.test ;
+IN: math.blas.matrices.tests
+
+! clone
+
+[ smatrix{
+    { 1.0 2.0 3.0 }
+    { 4.0 5.0 6.0 }
+    { 7.0 8.0 9.0 }
+} ] [
+    smatrix{
+        { 1.0 2.0 3.0 }
+        { 4.0 5.0 6.0 }
+        { 7.0 8.0 9.0 }
+    } clone
+] unit-test
+[ f ] [
+    smatrix{
+        { 1.0 2.0 3.0 }
+        { 4.0 5.0 6.0 }
+        { 7.0 8.0 9.0 }
+    } dup clone eq?
+] unit-test
+
+[ dmatrix{
+    { 1.0 2.0 3.0 }
+    { 4.0 5.0 6.0 }
+    { 7.0 8.0 9.0 }
+} ] [
+    dmatrix{
+        { 1.0 2.0 3.0 }
+        { 4.0 5.0 6.0 }
+        { 7.0 8.0 9.0 }
+    } clone
+] unit-test
+[ f ] [
+    dmatrix{
+        { 1.0 2.0 3.0 }
+        { 4.0 5.0 6.0 }
+        { 7.0 8.0 9.0 }
+    } dup clone eq?
+] unit-test
+
+[ cmatrix{
+    { C{ 1.0 1.0 } 2.0          3.0          }
+    { 4.0          C{ 5.0 2.0 } 6.0          }
+    { 7.0          8.0          C{ 9.0 3.0 } }
+} ] [
+    cmatrix{
+        { C{ 1.0 1.0 } 2.0          3.0          }
+        { 4.0          C{ 5.0 2.0 } 6.0          }
+        { 7.0          8.0          C{ 9.0 3.0 } }
+    } clone
+] unit-test
+[ f ] [
+    cmatrix{
+        { C{ 1.0 1.0 } 2.0          3.0          }
+        { 4.0          C{ 5.0 2.0 } 6.0          }
+        { 7.0          8.0          C{ 9.0 3.0 } }
+    } dup clone eq?
+] unit-test
+
+[ zmatrix{
+    { C{ 1.0 1.0 } 2.0          3.0          }
+    { 4.0          C{ 5.0 2.0 } 6.0          }
+    { 7.0          8.0          C{ 9.0 3.0 } }
+} ] [
+    zmatrix{
+        { C{ 1.0 1.0 } 2.0          3.0          }
+        { 4.0          C{ 5.0 2.0 } 6.0          }
+        { 7.0          8.0          C{ 9.0 3.0 } }
+    } clone
+] unit-test
+[ f ] [
+    zmatrix{
+        { C{ 1.0 1.0 } 2.0          3.0          }
+        { 4.0          C{ 5.0 2.0 } 6.0          }
+        { 7.0          8.0          C{ 9.0 3.0 } }
+    } dup clone eq?
+] unit-test
+
+! M.V
+
+[ svector{ 3.0 1.0 6.0 } ] [
+    smatrix{
+        {  0.0 1.0 0.0 1.0 }
+        { -1.0 0.0 0.0 2.0 }
+        {  0.0 0.0 1.0 3.0 }
+    }
+    svector{ 1.0 2.0 3.0 1.0 }
+    M.V
+] unit-test 
+[ svector{ -2.0 1.0 3.0 14.0 } ] [
+    smatrix{
+        {  0.0 1.0 0.0 1.0 }
+        { -1.0 0.0 0.0 2.0 }
+        {  0.0 0.0 1.0 3.0 }
+    } Mtranspose
+    svector{ 1.0 2.0 3.0 }
+    M.V
+] unit-test 
+
+[ dvector{ 3.0 1.0 6.0 } ] [
+    dmatrix{
+        {  0.0 1.0 0.0 1.0 }
+        { -1.0 0.0 0.0 2.0 }
+        {  0.0 0.0 1.0 3.0 }
+    }
+    dvector{ 1.0 2.0 3.0 1.0 }
+    M.V
+] unit-test 
+[ dvector{ -2.0 1.0 3.0 14.0 } ] [
+    dmatrix{
+        {  0.0 1.0 0.0 1.0 }
+        { -1.0 0.0 0.0 2.0 }
+        {  0.0 0.0 1.0 3.0 }
+    } Mtranspose
+    dvector{ 1.0 2.0 3.0 }
+    M.V
+] unit-test 
+
+[ cvector{ 3.0 C{ 1.0 2.0 } 6.0 } ] [
+    cmatrix{
+        {  0.0 1.0          0.0 1.0 }
+        { -1.0 C{ 0.0 1.0 } 0.0 2.0 }
+        {  0.0 0.0          1.0 3.0 }
+    }
+    cvector{ 1.0 2.0 3.0 1.0 }
+    M.V
+] unit-test 
+[ cvector{ -2.0 C{ 1.0 2.0 } 3.0 14.0 } ] [
+    cmatrix{
+        {  0.0 1.0          0.0 1.0 }
+        { -1.0 C{ 0.0 1.0 } 0.0 2.0 }
+        {  0.0 0.0          1.0 3.0 }
+    } Mtranspose
+    cvector{ 1.0 2.0 3.0 }
+    M.V
+] unit-test 
+
+[ zvector{ 3.0 C{ 1.0 2.0 } 6.0 } ] [
+    zmatrix{
+        {  0.0 1.0          0.0 1.0 }
+        { -1.0 C{ 0.0 1.0 } 0.0 2.0 }
+        {  0.0 0.0          1.0 3.0 }
+    }
+    zvector{ 1.0 2.0 3.0 1.0 }
+    M.V
+] unit-test
+[ zvector{ -2.0 C{ 1.0 2.0 } 3.0 14.0 } ] [
+    zmatrix{
+        {  0.0 1.0          0.0 1.0 }
+        { -1.0 C{ 0.0 1.0 } 0.0 2.0 }
+        {  0.0 0.0          1.0 3.0 }
+    } Mtranspose
+    zvector{ 1.0 2.0 3.0 }
+    M.V
+] unit-test 
+
+! V(*)
+
+[ smatrix{
+    { 1.0 2.0 3.0  4.0 }
+    { 2.0 4.0 6.0  8.0 }
+    { 3.0 6.0 9.0 12.0 }
+} ] [
+    svector{ 1.0 2.0 3.0 } svector{ 1.0 2.0 3.0 4.0 } V(*)
+] unit-test
+
+[ dmatrix{
+    { 1.0 2.0 3.0  4.0 }
+    { 2.0 4.0 6.0  8.0 }
+    { 3.0 6.0 9.0 12.0 }
+} ] [
+    dvector{ 1.0 2.0 3.0 } dvector{ 1.0 2.0 3.0 4.0 } V(*)
+] unit-test
+
+[ cmatrix{
+    { 1.0          2.0          C{ 3.0 -3.0 } 4.0            }
+    { 2.0          4.0          C{ 6.0 -6.0 } 8.0            }
+    { C{ 3.0 3.0 } C{ 6.0 6.0 } 18.0          C{ 12.0 12.0 } }
+} ] [
+    cvector{ 1.0 2.0 C{ 3.0 3.0 } } cvector{ 1.0 2.0 C{ 3.0 -3.0 } 4.0 } V(*)
+] unit-test
+
+[ zmatrix{
+    { 1.0          2.0          C{ 3.0 -3.0 } 4.0            }
+    { 2.0          4.0          C{ 6.0 -6.0 } 8.0            }
+    { C{ 3.0 3.0 } C{ 6.0 6.0 } 18.0          C{ 12.0 12.0 } }
+} ] [
+    zvector{ 1.0 2.0 C{ 3.0 3.0 } } zvector{ 1.0 2.0 C{ 3.0 -3.0 } 4.0 } V(*)
+] unit-test
+
+! M.
+
+[ smatrix{
+    { 1.0 0.0  0.0 4.0  0.0 }
+    { 0.0 0.0 -3.0 0.0  0.0 }
+    { 0.0 4.0  0.0 0.0 10.0 }
+    { 0.0 0.0  0.0 0.0  0.0 }
+} ] [
+    smatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } smatrix{
+        { 1.0 0.0 0.0 4.0 0.0 }
+        { 0.0 2.0 0.0 0.0 5.0 }
+        { 0.0 0.0 3.0 0.0 0.0 }
+    } M.
+] unit-test
+
+[ smatrix{
+    { 1.0  0.0  0.0 0.0 }
+    { 0.0  0.0  4.0 0.0 }
+    { 0.0 -3.0  0.0 0.0 }
+    { 4.0  0.0  0.0 0.0 }
+    { 0.0  0.0 10.0 0.0 }
+} ] [
+    smatrix{
+        { 1.0 0.0 0.0 4.0 0.0 }
+        { 0.0 2.0 0.0 0.0 5.0 }
+        { 0.0 0.0 3.0 0.0 0.0 }
+    } Mtranspose smatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } Mtranspose M.
+] unit-test
+
+[ dmatrix{
+    { 1.0 0.0  0.0 4.0  0.0 }
+    { 0.0 0.0 -3.0 0.0  0.0 }
+    { 0.0 4.0  0.0 0.0 10.0 }
+    { 0.0 0.0  0.0 0.0  0.0 }
+} ] [
+    dmatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } dmatrix{
+        { 1.0 0.0 0.0 4.0 0.0 }
+        { 0.0 2.0 0.0 0.0 5.0 }
+        { 0.0 0.0 3.0 0.0 0.0 }
+    } M.
+] unit-test
+
+[ dmatrix{
+    { 1.0  0.0  0.0 0.0 }
+    { 0.0  0.0  4.0 0.0 }
+    { 0.0 -3.0  0.0 0.0 }
+    { 4.0  0.0  0.0 0.0 }
+    { 0.0  0.0 10.0 0.0 }
+} ] [
+    dmatrix{
+        { 1.0 0.0 0.0 4.0 0.0 }
+        { 0.0 2.0 0.0 0.0 5.0 }
+        { 0.0 0.0 3.0 0.0 0.0 }
+    } Mtranspose dmatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } Mtranspose M.
+] unit-test
+
+[ cmatrix{
+    { 1.0 0.0            0.0 4.0  0.0 }
+    { 0.0 0.0           -3.0 0.0  0.0 }
+    { 0.0 C{ 4.0 -4.0 }  0.0 0.0 10.0 }
+    { 0.0 0.0            0.0 0.0  0.0 }
+} ] [
+    cmatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } cmatrix{
+        { 1.0 0.0           0.0 4.0 0.0 }
+        { 0.0 C{ 2.0 -2.0 } 0.0 0.0 5.0 }
+        { 0.0 0.0           3.0 0.0 0.0 }
+    } M.
+] unit-test
+
+[ cmatrix{
+    { 1.0  0.0  0.0          0.0 }
+    { 0.0  0.0 C{ 4.0 -4.0 } 0.0 }
+    { 0.0 -3.0  0.0          0.0 }
+    { 4.0  0.0  0.0          0.0 }
+    { 0.0  0.0 10.0          0.0 }
+} ] [
+    cmatrix{
+        { 1.0 0.0           0.0 4.0 0.0 }
+        { 0.0 C{ 2.0 -2.0 } 0.0 0.0 5.0 }
+        { 0.0 0.0           3.0 0.0 0.0 }
+    } Mtranspose cmatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } Mtranspose M.
+] unit-test
+
+[ zmatrix{
+    { 1.0 0.0            0.0 4.0  0.0 }
+    { 0.0 0.0           -3.0 0.0  0.0 }
+    { 0.0 C{ 4.0 -4.0 }  0.0 0.0 10.0 }
+    { 0.0 0.0            0.0 0.0  0.0 }
+} ] [
+    zmatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } zmatrix{
+        { 1.0 0.0           0.0 4.0 0.0 }
+        { 0.0 C{ 2.0 -2.0 } 0.0 0.0 5.0 }
+        { 0.0 0.0           3.0 0.0 0.0 }
+    } M.
+] unit-test
+
+[ zmatrix{
+    { 1.0  0.0  0.0          0.0 }
+    { 0.0  0.0 C{ 4.0 -4.0 } 0.0 }
+    { 0.0 -3.0  0.0          0.0 }
+    { 4.0  0.0  0.0          0.0 }
+    { 0.0  0.0 10.0          0.0 }
+} ] [
+    zmatrix{
+        { 1.0 0.0           0.0 4.0 0.0 }
+        { 0.0 C{ 2.0 -2.0 } 0.0 0.0 5.0 }
+        { 0.0 0.0           3.0 0.0 0.0 }
+    } Mtranspose zmatrix{
+        { 1.0 0.0  0.0 }
+        { 0.0 0.0 -1.0 }
+        { 0.0 2.0  0.0 }
+        { 0.0 0.0  0.0 }
+    } Mtranspose M.
+] unit-test
+
+! n*M
+
+[ smatrix{
+    { 2.0 0.0 }
+    { 0.0 2.0 }
+} ] [
+    2.0 smatrix{
+        { 1.0 0.0 }
+        { 0.0 1.0 }
+    } n*M
+] unit-test
+
+[ dmatrix{
+    { 2.0 0.0 }
+    { 0.0 2.0 }
+} ] [
+    2.0 dmatrix{
+        { 1.0 0.0 }
+        { 0.0 1.0 }
+    } n*M
+] unit-test
+
+[ cmatrix{
+    { C{ 2.0 1.0 } 0.0           }
+    { 0.0          C{ -1.0 2.0 } }
+} ] [
+    C{ 2.0 1.0 } cmatrix{
+        { 1.0 0.0          }
+        { 0.0 C{ 0.0 1.0 } }
+    } n*M
+] unit-test
+
+[ zmatrix{
+    { C{ 2.0 1.0 } 0.0           }
+    { 0.0          C{ -1.0 2.0 } }
+} ] [
+    C{ 2.0 1.0 } zmatrix{
+        { 1.0 0.0          }
+        { 0.0 C{ 0.0 1.0 } }
+    } n*M
+] unit-test
+
+! Mrows, Mcols
+
+[ svector{ 3.0 3.0 3.0 } ] [
+    2 smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mcols nth
+] unit-test
+[ svector{ 3.0 2.0 3.0 4.0 } ] [
+    2 smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mrows nth
+] unit-test
+[ 3 ] [
+    smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mrows length
+] unit-test
+[ 4 ] [
+    smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mcols length
+] unit-test
+[ svector{ 3.0 3.0 3.0 } ] [
+    2 smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mrows nth
+] unit-test
+[ svector{ 3.0 2.0 3.0 4.0 } ] [
+    2 smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mcols nth
+] unit-test
+[ 3 ] [
+    smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mcols length
+] unit-test
+[ 4 ] [
+    smatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mrows length
+] unit-test
+
+[ dvector{ 3.0 3.0 3.0 } ] [
+    2 dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mcols nth
+] unit-test
+[ dvector{ 3.0 2.0 3.0 4.0 } ] [
+    2 dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mrows nth
+] unit-test
+[ 3 ] [
+    dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mrows length
+] unit-test
+[ 4 ] [
+    dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mcols length
+] unit-test
+[ dvector{ 3.0 3.0 3.0 } ] [
+    2 dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mrows nth
+] unit-test
+[ dvector{ 3.0 2.0 3.0 4.0 } ] [
+    2 dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mcols nth
+] unit-test
+[ 3 ] [
+    dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mcols length
+] unit-test
+[ 4 ] [
+    dmatrix{
+        { 1.0 2.0 3.0 4.0 }
+        { 2.0 2.0 3.0 4.0 }
+        { 3.0 2.0 3.0 4.0 }
+    } Mtranspose Mrows length
+] unit-test
+
+[ cvector{ C{ 3.0 1.0 } C{ 3.0 2.0 } C{ 3.0 3.0 } } ] [
+    2 cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mcols nth
+] unit-test
+[ cvector{ C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } } ] [
+    2 cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mrows nth
+] unit-test
+[ 3 ] [
+    cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mrows length
+] unit-test
+[ 4 ] [
+    cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mcols length
+] unit-test
+[ cvector{ C{ 3.0 1.0 } C{ 3.0 2.0 } C{ 3.0 3.0 } } ] [
+    2 cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mrows nth
+] unit-test
+[ cvector{ C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } } ] [
+    2 cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mcols nth
+] unit-test
+[ 3 ] [
+    cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mcols length
+] unit-test
+[ 4 ] [
+    cmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mrows length
+] unit-test
+
+[ zvector{ C{ 3.0 1.0 } C{ 3.0 2.0 } C{ 3.0 3.0 } } ] [
+    2 zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mcols nth
+] unit-test
+[ zvector{ C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } } ] [
+    2 zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mrows nth
+] unit-test
+[ 3 ] [
+    zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mrows length
+] unit-test
+[ 4 ] [
+    zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mcols length
+] unit-test
+[ zvector{ C{ 3.0 1.0 } C{ 3.0 2.0 } C{ 3.0 3.0 } } ] [
+    2 zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mrows nth
+] unit-test
+[ zvector{ C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } } ] [
+    2 zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mcols nth
+] unit-test
+[ 3 ] [
+    zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mcols length
+] unit-test
+[ 4 ] [
+    zmatrix{
+        { C{ 1.0 1.0 } C{ 2.0 1.0 } C{ 3.0 1.0 } C{ 4.0 1.0 } }
+        { C{ 1.0 2.0 } C{ 2.0 2.0 } C{ 3.0 2.0 } C{ 4.0 2.0 } }
+        { C{ 1.0 3.0 } C{ 2.0 3.0 } C{ 3.0 3.0 } C{ 4.0 3.0 } }
+    } Mtranspose Mrows length
+] unit-test
+
+! Msub
+
+[ smatrix{
+    { 3.0 2.0 1.0 }
+    { 0.0 1.0 0.0 }
+} ] [
+    smatrix{
+        { 0.0 1.0 2.0 3.0 2.0 }
+        { 1.0 0.0 3.0 2.0 1.0 }
+        { 2.0 3.0 0.0 1.0 0.0 }
+    } 1 2 2 3 Msub
+] unit-test
+
+[ smatrix{
+    { 3.0 0.0 }
+    { 2.0 1.0 }
+    { 1.0 0.0 }
+} ] [
+    smatrix{
+        { 0.0 1.0 2.0 3.0 2.0 }
+        { 1.0 0.0 3.0 2.0 1.0 }
+        { 2.0 3.0 0.0 1.0 0.0 }
+    } Mtranspose 2 1 3 2 Msub
+] unit-test
+
+[ dmatrix{
+    { 3.0 2.0 1.0 }
+    { 0.0 1.0 0.0 }
+} ] [
+    dmatrix{
+        { 0.0 1.0 2.0 3.0 2.0 }
+        { 1.0 0.0 3.0 2.0 1.0 }
+        { 2.0 3.0 0.0 1.0 0.0 }
+    } 1 2 2 3 Msub
+] unit-test
+
+[ dmatrix{
+    { 3.0 0.0 }
+    { 2.0 1.0 }
+    { 1.0 0.0 }
+} ] [
+    dmatrix{
+        { 0.0 1.0 2.0 3.0 2.0 }
+        { 1.0 0.0 3.0 2.0 1.0 }
+        { 2.0 3.0 0.0 1.0 0.0 }
+    } Mtranspose 2 1 3 2 Msub
+] unit-test
+
+[ cmatrix{
+    { C{ 3.0 3.0 } 2.0 1.0 }
+    { 0.0          1.0 0.0 }
+} ] [
+    cmatrix{
+        { 0.0 1.0 2.0          3.0 2.0 }
+        { 1.0 0.0 C{ 3.0 3.0 } 2.0 1.0 }
+        { 2.0 3.0 0.0          1.0 0.0 }
+    } 1 2 2 3 Msub
+] unit-test
+
+[ cmatrix{
+    { C{ 3.0 3.0 } 0.0 }
+    { 2.0          1.0 }
+    { 1.0          0.0 }
+} ] [
+    cmatrix{
+        { 0.0 1.0 2.0          3.0 2.0 }
+        { 1.0 0.0 C{ 3.0 3.0 } 2.0 1.0 }
+        { 2.0 3.0 0.0          1.0 0.0 }
+    } Mtranspose 2 1 3 2 Msub
+] unit-test
+
+[ zmatrix{
+    { C{ 3.0 3.0 } 2.0 1.0 }
+    { 0.0          1.0 0.0 }
+} ] [
+    zmatrix{
+        { 0.0 1.0 2.0          3.0 2.0 }
+        { 1.0 0.0 C{ 3.0 3.0 } 2.0 1.0 }
+        { 2.0 3.0 0.0          1.0 0.0 }
+    } 1 2 2 3 Msub
+] unit-test
+
+[ zmatrix{
+    { C{ 3.0 3.0 } 0.0 }
+    { 2.0          1.0 }
+    { 1.0          0.0 }
+} ] [
+    zmatrix{
+        { 0.0 1.0 2.0          3.0 2.0 }
+        { 1.0 0.0 C{ 3.0 3.0 } 2.0 1.0 }
+        { 2.0 3.0 0.0          1.0 0.0 }
+    } Mtranspose 2 1 3 2 Msub
+] unit-test
+
diff --git a/extra/math/blas/matrices/matrices.factor b/extra/math/blas/matrices/matrices.factor
new file mode 100755
index 0000000000..4f50543e73
--- /dev/null
+++ b/extra/math/blas/matrices/matrices.factor
@@ -0,0 +1,310 @@
+USING: accessors alien alien.c-types arrays byte-arrays combinators
+combinators.lib combinators.short-circuit fry kernel locals macros
+math math.blas.cblas math.blas.vectors math.blas.vectors.private
+math.complex math.functions math.order multi-methods qualified
+sequences sequences.merged sequences.private generalizations
+shuffle symbols ;
+QUALIFIED: syntax
+IN: math.blas.matrices
+
+TUPLE: blas-matrix-base data ld rows cols transpose ;
+TUPLE: float-blas-matrix < blas-matrix-base ;
+TUPLE: double-blas-matrix < blas-matrix-base ;
+TUPLE: float-complex-blas-matrix < blas-matrix-base ;
+TUPLE: double-complex-blas-matrix < blas-matrix-base ;
+
+C: <float-blas-matrix> float-blas-matrix
+C: <double-blas-matrix> double-blas-matrix
+C: <float-complex-blas-matrix> float-complex-blas-matrix
+C: <double-complex-blas-matrix> double-complex-blas-matrix
+
+METHOD: element-type { float-blas-matrix }
+    drop "float" ;
+METHOD: element-type { double-blas-matrix }
+    drop "double" ;
+METHOD: element-type { float-complex-blas-matrix }
+    drop "CBLAS_C" ;
+METHOD: element-type { double-complex-blas-matrix }
+    drop "CBLAS_Z" ;
+
+: Mtransposed? ( matrix -- ? )
+    transpose>> ; inline
+: Mwidth ( matrix -- width )
+    dup Mtransposed? [ rows>> ] [ cols>> ] if ; inline
+: Mheight ( matrix -- height )
+    dup Mtransposed? [ cols>> ] [ rows>> ] if ; inline
+
+<PRIVATE
+
+: (blas-transpose) ( matrix -- integer )
+    transpose>> [ CblasTrans ] [ CblasNoTrans ] if ;
+
+GENERIC: (blas-matrix-like) ( data ld rows cols transpose exemplar -- matrix )
+
+METHOD: (blas-matrix-like) { object object object object object float-blas-matrix }
+    drop <float-blas-matrix> ;
+METHOD: (blas-matrix-like) { object object object object object double-blas-matrix }
+    drop <double-blas-matrix> ;
+METHOD: (blas-matrix-like) { object object object object object float-complex-blas-matrix }
+    drop <float-complex-blas-matrix> ;
+METHOD: (blas-matrix-like) { object object object object object double-complex-blas-matrix }
+    drop <double-complex-blas-matrix> ;
+
+METHOD: (blas-matrix-like) { object object object object object float-blas-vector }
+    drop <float-blas-matrix> ;
+METHOD: (blas-matrix-like) { object object object object object double-blas-vector }
+    drop <double-blas-matrix> ;
+METHOD: (blas-matrix-like) { object object object object object float-complex-blas-vector }
+    drop <float-complex-blas-matrix> ;
+METHOD: (blas-matrix-like) { object object object object object double-complex-blas-vector }
+    drop <double-complex-blas-matrix> ;
+
+METHOD: (blas-vector-like) { object object object float-blas-matrix }
+    drop <float-blas-vector> ;
+METHOD: (blas-vector-like) { object object object double-blas-matrix }
+    drop <double-blas-vector> ;
+METHOD: (blas-vector-like) { object object object float-complex-blas-matrix }
+    drop <float-complex-blas-vector> ;
+METHOD: (blas-vector-like) { object object object double-complex-blas-matrix }
+    drop <double-complex-blas-vector> ;
+
+: (validate-gemv) ( A x y -- )
+    {
+        [ drop [ Mwidth  ] [ length>> ] bi* = ]
+        [ nip  [ Mheight ] [ length>> ] bi* = ]
+    } 3&&
+    [ "Mismatched matrix and vectors in matrix-vector multiplication" throw ] unless ;
+
+:: (prepare-gemv) ( alpha A x beta y >c-arg -- order A-trans m n alpha A-data A-ld x-data x-inc beta y-data y-inc y )
+    A x y (validate-gemv)
+    CblasColMajor
+    A (blas-transpose)
+    A rows>>
+    A cols>>
+    alpha >c-arg call
+    A data>>
+    A ld>>
+    x data>>
+    x inc>>
+    beta >c-arg call
+    y data>>
+    y inc>>
+    y ; inline
+
+: (validate-ger) ( x y A -- )
+    {
+        [ nip  [ length>> ] [ Mheight ] bi* = ]
+        [ nipd [ length>> ] [ Mwidth  ] bi* = ]
+    } 3&&
+    [ "Mismatched vertices and matrix in vector outer product" throw ] unless ;
+
+:: (prepare-ger) ( alpha x y A >c-arg -- order m n alpha x-data x-inc y-data y-inc A-data A-ld A )
+    x y A (validate-ger)
+    CblasColMajor
+    A rows>>
+    A cols>>
+    alpha >c-arg call
+    x data>>
+    x inc>>
+    y data>>
+    y inc>>
+    A data>>
+    A ld>>
+    A f >>transpose ; inline
+
+: (validate-gemm) ( A B C -- )
+    {
+        [ drop [ Mwidth  ] [ Mheight ] bi* = ]
+        [ nip  [ Mheight ] bi@ = ]
+        [ nipd [ Mwidth  ] bi@ = ]
+    } 3&& [ "Mismatched matrices in matrix multiplication" throw ] unless ;
+
+:: (prepare-gemm) ( alpha A B beta C >c-arg -- order A-trans B-trans m n k alpha A-data A-ld B-data B-ld beta C-data C-ld C )
+    A B C (validate-gemm)
+    CblasColMajor
+    A (blas-transpose)
+    B (blas-transpose)
+    C rows>>
+    C cols>>
+    A Mwidth
+    alpha >c-arg call
+    A data>>
+    A ld>>
+    B data>>
+    B ld>>
+    beta >c-arg call
+    C data>>
+    C ld>>
+    C f >>transpose ; inline
+
+: (>matrix) ( arrays >c-array -- c-array ld rows cols transpose )
+    '[ <merged> @ ] [ length dup ] [ first length ] tri f ; inline
+
+PRIVATE>
+
+: >float-blas-matrix ( arrays -- matrix )
+    [ >c-float-array ] (>matrix) <float-blas-matrix> ;
+: >double-blas-matrix ( arrays -- matrix )
+    [ >c-double-array ] (>matrix) <double-blas-matrix> ;
+: >float-complex-blas-matrix ( arrays -- matrix )
+    [ (flatten-complex-sequence) >c-float-array ] (>matrix)
+    <float-complex-blas-matrix> ;
+: >double-complex-blas-matrix ( arrays -- matrix )
+    [ (flatten-complex-sequence) >c-double-array ] (>matrix)
+    <double-complex-blas-matrix> ;
+
+GENERIC: n*M.V+n*V! ( alpha A x beta y -- y=alpha*A.x+b*y )
+GENERIC: n*V(*)V+M! ( alpha x y A -- A=alpha*x(*)y+A )
+GENERIC: n*V(*)Vconj+M! ( alpha x y A -- A=alpha*x(*)yconj+A )
+GENERIC: n*M.M+n*M! ( alpha A B beta C -- C=alpha*A.B+beta*C )
+
+METHOD: n*M.V+n*V! { real float-blas-matrix float-blas-vector real float-blas-vector }
+    [ ] (prepare-gemv) [ cblas_sgemv ] dip ;
+METHOD: n*M.V+n*V! { real double-blas-matrix double-blas-vector real double-blas-vector }
+    [ ] (prepare-gemv) [ cblas_dgemv ] dip ;
+METHOD: n*M.V+n*V! { number float-complex-blas-matrix float-complex-blas-vector number float-complex-blas-vector }
+    [ (>c-complex) ] (prepare-gemv) [ cblas_cgemv ] dip ;
+METHOD: n*M.V+n*V! { number double-complex-blas-matrix double-complex-blas-vector number double-complex-blas-vector }
+    [ (>z-complex) ] (prepare-gemv) [ cblas_zgemv ] dip ;
+
+METHOD: n*V(*)V+M! { real float-blas-vector float-blas-vector float-blas-matrix }
+    [ ] (prepare-ger) [ cblas_sger ] dip ;
+METHOD: n*V(*)V+M! { real double-blas-vector double-blas-vector double-blas-matrix }
+    [ ] (prepare-ger) [ cblas_dger ] dip ;
+METHOD: n*V(*)V+M! { number float-complex-blas-vector float-complex-blas-vector float-complex-blas-matrix }
+    [ (>c-complex) ] (prepare-ger) [ cblas_cgeru ] dip ;
+METHOD: n*V(*)V+M! { number double-complex-blas-vector double-complex-blas-vector double-complex-blas-matrix }
+    [ (>z-complex) ] (prepare-ger) [ cblas_zgeru ] dip ;
+
+METHOD: n*V(*)Vconj+M! { real float-blas-vector float-blas-vector float-blas-matrix }
+    [ ] (prepare-ger) [ cblas_sger ] dip ;
+METHOD: n*V(*)Vconj+M! { real double-blas-vector double-blas-vector double-blas-matrix }
+    [ ] (prepare-ger) [ cblas_dger ] dip ;
+METHOD: n*V(*)Vconj+M! { number float-complex-blas-vector float-complex-blas-vector float-complex-blas-matrix }
+    [ (>c-complex) ] (prepare-ger) [ cblas_cgerc ] dip ;
+METHOD: n*V(*)Vconj+M! { number double-complex-blas-vector double-complex-blas-vector double-complex-blas-matrix }
+    [ (>z-complex) ] (prepare-ger) [ cblas_zgerc ] dip ;
+
+METHOD: n*M.M+n*M! { real float-blas-matrix float-blas-matrix real float-blas-matrix }
+    [ ] (prepare-gemm) [ cblas_sgemm ] dip ;
+METHOD: n*M.M+n*M! { real double-blas-matrix double-blas-matrix real double-blas-matrix }
+    [ ] (prepare-gemm) [ cblas_dgemm ] dip ;
+METHOD: n*M.M+n*M! { number float-complex-blas-matrix float-complex-blas-matrix number float-complex-blas-matrix }
+    [ (>c-complex) ] (prepare-gemm) [ cblas_cgemm ] dip ;
+METHOD: n*M.M+n*M! { number double-complex-blas-matrix double-complex-blas-matrix number double-complex-blas-matrix }
+    [ (>z-complex) ] (prepare-gemm) [ cblas_zgemm ] dip ;
+
+! XXX should do a dense clone
+syntax:M: blas-matrix-base clone
+    [ 
+        [
+            { [ data>> ] [ ld>> ] [ cols>> ] [ element-type heap-size ] } cleave
+            * * memory>byte-array
+        ] [ { [ ld>> ] [ rows>> ] [ cols>> ] [ transpose>> ] } cleave ] bi
+    ] keep (blas-matrix-like) ;
+
+! XXX try rounding stride to next 128 bit bound for better vectorizin'
+: <empty-matrix> ( rows cols exemplar -- matrix )
+    [ element-type [ * ] dip <c-array> ]
+    [ 2drop ]
+    [ f swap (blas-matrix-like) ] 3tri ;
+
+: n*M.V+n*V ( alpha A x beta y -- alpha*A.x+b*y )
+    clone n*M.V+n*V! ;
+: n*V(*)V+M ( alpha x y A -- alpha*x(*)y+A )
+    clone n*V(*)V+M! ;
+: n*V(*)Vconj+M ( alpha x y A -- alpha*x(*)yconj+A )
+    clone n*V(*)Vconj+M! ;
+: n*M.M+n*M ( alpha A B beta C -- alpha*A.B+beta*C )
+    clone n*M.M+n*M! ;
+
+: n*M.V ( alpha A x -- alpha*A.x )
+    1.0 2over [ Mheight ] dip <empty-vector>
+    n*M.V+n*V! ; inline
+
+: M.V ( A x -- A.x )
+    1.0 -rot n*M.V ; inline
+
+: n*V(*)V ( alpha x y -- alpha*x(*)y )
+    2dup [ length>> ] bi@ pick <empty-matrix>
+    n*V(*)V+M! ;
+: n*V(*)Vconj ( alpha x y -- alpha*x(*)yconj )
+    2dup [ length>> ] bi@ pick <empty-matrix>
+    n*V(*)Vconj+M! ;
+
+: V(*) ( x y -- x(*)y )
+    1.0 -rot n*V(*)V ; inline
+: V(*)conj ( x y -- x(*)yconj )
+    1.0 -rot n*V(*)Vconj ; inline
+
+: n*M.M ( alpha A B -- alpha*A.B )
+    2dup [ Mheight ] [ Mwidth ] bi* pick <empty-matrix> 
+    1.0 swap n*M.M+n*M! ;
+
+: M. ( A B -- A.B )
+    1.0 -rot n*M.M ; inline
+
+:: (Msub) ( matrix row col height width -- data ld rows cols )
+    matrix ld>> col * row + matrix element-type heap-size *
+    matrix data>> <displaced-alien>
+    matrix ld>>
+    height
+    width ;
+
+: Msub ( matrix row col height width -- sub )
+    5 npick dup transpose>>
+    [ nip [ [ swap ] 2dip swap ] when (Msub) ] 2keep
+    swap (blas-matrix-like) ;
+
+TUPLE: blas-matrix-rowcol-sequence parent inc rowcol-length rowcol-jump length ;
+C: <blas-matrix-rowcol-sequence> blas-matrix-rowcol-sequence
+
+INSTANCE: blas-matrix-rowcol-sequence sequence
+
+syntax:M: blas-matrix-rowcol-sequence length
+    length>> ;
+syntax:M: blas-matrix-rowcol-sequence nth-unsafe
+    {
+        [
+            [ rowcol-jump>> ]
+            [ parent>> element-type heap-size ]
+            [ parent>> data>> ] tri
+            [ * * ] dip <displaced-alien>
+        ]
+        [ rowcol-length>> ]
+        [ inc>> ]
+        [ parent>> ]
+    } cleave (blas-vector-like) ;
+
+: (Mcols) ( A -- columns )
+    { [ ] [ drop 1 ] [ rows>> ] [ ld>> ] [ cols>> ] } cleave
+    <blas-matrix-rowcol-sequence> ;
+: (Mrows) ( A -- rows )
+    { [ ] [ ld>> ] [ cols>> ] [ drop 1 ] [ rows>> ] } cleave
+    <blas-matrix-rowcol-sequence> ;
+
+: Mrows ( A -- rows )
+    dup transpose>> [ (Mcols) ] [ (Mrows) ] if ;
+: Mcols ( A -- cols )
+    dup transpose>> [ (Mrows) ] [ (Mcols) ] if ;
+
+: n*M! ( n A -- A=n*A )
+    [ (Mcols) [ n*V! drop ] with each ] keep ;
+
+: n*M ( n A -- n*A )
+    clone n*M! ; inline
+
+: M*n ( A n -- A*n )
+    swap n*M ; inline
+: M/n ( A n -- A/n )
+    recip swap n*M ; inline
+
+: Mtranspose ( matrix -- matrix^T )
+    [ { [ data>> ] [ ld>> ] [ rows>> ] [ cols>> ] [ transpose>> not ] } cleave ] keep (blas-matrix-like) ;
+
+syntax:M: blas-matrix-base equal?
+    {
+        [ [ Mwidth ] bi@ = ]
+        [ [ Mcols ] bi@ [ = ] 2all? ]
+    } 2&& ;
+
diff --git a/extra/math/blas/matrices/summary.txt b/extra/math/blas/matrices/summary.txt
new file mode 100644
index 0000000000..4cc5684789
--- /dev/null
+++ b/extra/math/blas/matrices/summary.txt
@@ -0,0 +1 @@
+BLAS level 2 and 3 matrix-vector and matrix-matrix operations
diff --git a/extra/math/blas/matrices/tags.txt b/extra/math/blas/matrices/tags.txt
new file mode 100644
index 0000000000..5118958180
--- /dev/null
+++ b/extra/math/blas/matrices/tags.txt
@@ -0,0 +1,3 @@
+math
+bindings
+unportable
diff --git a/extra/math/blas/syntax/authors.txt b/extra/math/blas/syntax/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/math/blas/syntax/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/math/blas/syntax/summary.txt b/extra/math/blas/syntax/summary.txt
new file mode 100644
index 0000000000..a71bebb50f
--- /dev/null
+++ b/extra/math/blas/syntax/summary.txt
@@ -0,0 +1 @@
+Literal syntax for BLAS vectors and matrices
diff --git a/extra/math/blas/syntax/syntax-docs.factor b/extra/math/blas/syntax/syntax-docs.factor
new file mode 100644
index 0000000000..6b58df738a
--- /dev/null
+++ b/extra/math/blas/syntax/syntax-docs.factor
@@ -0,0 +1,78 @@
+USING: help.markup help.syntax math.blas.matrices math.blas.vectors multiline ;
+IN: math.blas.syntax
+
+ARTICLE: "math.blas.syntax" "BLAS interface literal syntax"
+"Vectors:"
+{ $subsection POSTPONE: svector{ }
+{ $subsection POSTPONE: dvector{ }
+{ $subsection POSTPONE: cvector{ }
+{ $subsection POSTPONE: zvector{ }
+"Matrices:"
+{ $subsection POSTPONE: smatrix{ }
+{ $subsection POSTPONE: dmatrix{ }
+{ $subsection POSTPONE: cmatrix{ }
+{ $subsection POSTPONE: zmatrix{ } ;
+
+ABOUT: "math.blas.syntax"
+
+HELP: svector{
+{ $syntax "svector{ 1.0 -2.0 3.0 }" }
+{ $description "Construct a literal " { $link float-blas-vector } "." } ;
+
+HELP: dvector{
+{ $syntax "dvector{ 1.0 -2.0 3.0 }" }
+{ $description "Construct a literal " { $link double-blas-vector } "." } ;
+
+HELP: cvector{
+{ $syntax "cvector{ 1.0 -2.0 C{ 3.0 -1.0 } }" }
+{ $description "Construct a literal " { $link float-complex-blas-vector } "." } ;
+
+HELP: zvector{
+{ $syntax "dvector{ 1.0 -2.0 C{ 3.0 -1.0 } }" }
+{ $description "Construct a literal " { $link double-complex-blas-vector } "." } ;
+
+{
+    POSTPONE: svector{ POSTPONE: dvector{
+    POSTPONE: cvector{ POSTPONE: zvector{
+} related-words
+
+HELP: smatrix{
+{ $syntax <" smatrix{
+    { 1.0 0.0 0.0 1.0 }
+    { 0.0 1.0 0.0 2.0 }
+    { 0.0 0.0 1.0 3.0 }
+    { 0.0 0.0 0.0 1.0 }
+} "> }
+{ $description "Construct a literal " { $link float-blas-matrix } ". Note that although BLAS matrices are stored in column-major order, the literal is specified in row-major order." } ;
+
+HELP: dmatrix{
+{ $syntax <" dmatrix{
+    { 1.0 0.0 0.0 1.0 }
+    { 0.0 1.0 0.0 2.0 }
+    { 0.0 0.0 1.0 3.0 }
+    { 0.0 0.0 0.0 1.0 }
+} "> }
+{ $description "Construct a literal " { $link double-blas-matrix } ". Note that although BLAS matrices are stored in column-major order, the literal is specified in row-major order." } ;
+
+HELP: cmatrix{
+{ $syntax <" cmatrix{
+    { 1.0 0.0           0.0 1.0           }
+    { 0.0 C{ 0.0 1.0 }  0.0 2.0           }
+    { 0.0 0.0          -1.0 3.0           }
+    { 0.0 0.0           0.0 C{ 0.0 -1.0 } }
+} "> }
+{ $description "Construct a literal " { $link float-complex-blas-matrix } ". Note that although BLAS matrices are stored in column-major order, the literal is specified in row-major order." } ;
+
+HELP: zmatrix{
+{ $syntax <" zmatrix{
+    { 1.0 0.0           0.0 1.0           }
+    { 0.0 C{ 0.0 1.0 }  0.0 2.0           }
+    { 0.0 0.0          -1.0 3.0           }
+    { 0.0 0.0           0.0 C{ 0.0 -1.0 } }
+} "> }
+{ $description "Construct a literal " { $link double-complex-blas-matrix } ". Note that although BLAS matrices are stored in column-major order, the literal is specified in row-major order." } ;
+
+{
+    POSTPONE: smatrix{ POSTPONE: dmatrix{
+    POSTPONE: cmatrix{ POSTPONE: zmatrix{
+} related-words
diff --git a/extra/math/blas/syntax/syntax.factor b/extra/math/blas/syntax/syntax.factor
new file mode 100644
index 0000000000..6b40910687
--- /dev/null
+++ b/extra/math/blas/syntax/syntax.factor
@@ -0,0 +1,36 @@
+USING: kernel math.blas.matrices math.blas.vectors parser
+arrays prettyprint.backend sequences ;
+IN: math.blas.syntax
+
+: svector{
+    \ } [ >float-blas-vector ] parse-literal ; parsing
+: dvector{
+    \ } [ >double-blas-vector ] parse-literal ; parsing
+: cvector{
+    \ } [ >float-complex-blas-vector ] parse-literal ; parsing
+: zvector{
+    \ } [ >double-complex-blas-vector ] parse-literal ; parsing
+
+: smatrix{
+    \ } [ >float-blas-matrix ] parse-literal ; parsing
+: dmatrix{
+    \ } [ >double-blas-matrix ] parse-literal ; parsing
+: cmatrix{
+    \ } [ >float-complex-blas-matrix ] parse-literal ; parsing
+: zmatrix{
+    \ } [ >double-complex-blas-matrix ] parse-literal ; parsing
+
+M: float-blas-vector pprint-delims drop \ svector{ \ } ;
+M: double-blas-vector pprint-delims drop \ dvector{ \ } ;
+M: float-complex-blas-vector pprint-delims drop \ cvector{ \ } ;
+M: double-complex-blas-vector pprint-delims drop \ zvector{ \ } ;
+
+M: float-blas-matrix pprint-delims drop \ smatrix{ \ } ;
+M: double-blas-matrix pprint-delims drop \ dmatrix{ \ } ;
+M: float-complex-blas-matrix pprint-delims drop \ cmatrix{ \ } ;
+M: double-complex-blas-matrix pprint-delims drop \ zmatrix{ \ } ;
+
+M: blas-vector-base >pprint-sequence ;
+M: blas-vector-base pprint* pprint-object ;
+M: blas-matrix-base >pprint-sequence Mrows ;
+M: blas-matrix-base pprint* pprint-object ;
diff --git a/extra/math/blas/syntax/tags.txt b/extra/math/blas/syntax/tags.txt
new file mode 100644
index 0000000000..6a932d96d2
--- /dev/null
+++ b/extra/math/blas/syntax/tags.txt
@@ -0,0 +1,2 @@
+math
+unportable
diff --git a/extra/math/blas/vectors/authors.txt b/extra/math/blas/vectors/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/math/blas/vectors/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/math/blas/vectors/summary.txt b/extra/math/blas/vectors/summary.txt
new file mode 100644
index 0000000000..f983e855a4
--- /dev/null
+++ b/extra/math/blas/vectors/summary.txt
@@ -0,0 +1 @@
+BLAS level 1 vector operations
diff --git a/extra/math/blas/vectors/tags.txt b/extra/math/blas/vectors/tags.txt
new file mode 100644
index 0000000000..6a932d96d2
--- /dev/null
+++ b/extra/math/blas/vectors/tags.txt
@@ -0,0 +1,2 @@
+math
+unportable
diff --git a/extra/math/blas/vectors/vectors-docs.factor b/extra/math/blas/vectors/vectors-docs.factor
new file mode 100644
index 0000000000..0595f00989
--- /dev/null
+++ b/extra/math/blas/vectors/vectors-docs.factor
@@ -0,0 +1,131 @@
+USING: alien byte-arrays help.markup help.syntax math sequences ;
+IN: math.blas.vectors
+
+ARTICLE: "math.blas.vectors" "BLAS interface vector operations"
+"Slicing vectors:"
+{ $subsection Vsub }
+"Taking the norm (magnitude) of a vector:"
+{ $subsection Vnorm }
+"Summing and taking the maximum of elements:"
+{ $subsection Vasum }
+{ $subsection Viamax }
+{ $subsection Vamax }
+"Scalar-vector products:"
+{ $subsection n*V! }
+{ $subsection n*V }
+{ $subsection V*n }
+{ $subsection V/n }
+{ $subsection Vneg }
+"Vector addition:" 
+{ $subsection n*V+V! }
+{ $subsection n*V+V }
+{ $subsection V+ }
+{ $subsection V- }
+"Vector inner products:"
+{ $subsection V. }
+{ $subsection V.conj } ;
+
+ABOUT: "math.blas.vectors"
+
+HELP: blas-vector-base
+{ $class-description "The base class for all BLAS vector types. Objects of this type should not be created directly; instead, instantiate one of the typed subclasses:"
+{ $list
+    { { $link float-blas-vector } }
+    { { $link double-blas-vector } }
+    { { $link float-complex-blas-vector } }
+    { { $link double-complex-blas-vector } }
+}
+"All of these subclasses share the same tuple layout:"
+{ $list
+    { { $snippet "data" } " contains an alien pointer referencing or byte-array containing a packed array of float, double, float complex, or double complex values;" }
+    { { $snippet "length" } " indicates the length of the vector;" }
+    { "and " { $snippet "inc" } " indicates the distance, in elements, between elements." }
+} } ;
+
+HELP: float-blas-vector
+{ $class-description "A vector of single-precision floating-point values. For details on the tuple layout, see " { $link blas-vector-base } "." } ;
+HELP: double-blas-vector
+{ $class-description "A vector of double-precision floating-point values. For details on the tuple layout, see " { $link blas-vector-base } "." } ;
+HELP: float-complex-blas-vector
+{ $class-description "A vector of single-precision floating-point complex values. Complex values are stored in memory as two consecutive float values, real part then imaginary part. For details on the tuple layout, see " { $link blas-vector-base } "." } ;
+HELP: double-complex-blas-vector
+{ $class-description "A vector of single-precision floating-point complex values. Complex values are stored in memory as two consecutive float values, real part then imaginary part. For details on the tuple layout, see " { $link blas-vector-base } "." } ;
+
+HELP: n*V+V!
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "y=alpha*x+y" blas-vector-base } }
+{ $description "Calculate the vector sum " { $snippet "αx + y" } " and replace the existing contents of y with the result. Corresponds to the xAXPY routines in BLAS." }
+{ $side-effects "y" } ;
+
+HELP: n*V!
+{ $values { "alpha" number } { "x" blas-vector-base } { "x=alpha*x" blas-vector-base } }
+{ $description "Calculate the scalar-vector product " { $snippet "αx" } " and replace the existing contents of x with the result. Corresponds to the xSCAL routines in BLAS." }
+{ $side-effects "x" } ;
+
+HELP: V.
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "x.y" number } }
+{ $description "Calculate the inner product " { $snippet "xâ‹…y" } ". Corresponds to the xDOT and xDOTU routines in BLAS." } ;
+
+HELP: V.conj
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "xconj.y" number } }
+{ $description "Calculate the conjugate inner product " { $snippet "xÌ…â‹…y" } ". Corresponds to the xDOTC routines in BLAS." } ;
+
+HELP: Vnorm
+{ $values { "x" blas-vector-base } { "norm" number } }
+{ $description "Calculate the norm-2, i.e., the magnitude or absolute value, of " { $snippet "x" } " (" { $snippet "‖x‖₂" } "). Corresponds to the xNRM2 routines in BLAS." } ;
+
+HELP: Vasum
+{ $values { "x" blas-vector-base } { "sum" number } }
+{ $description "Calculate the sum of the norm-1s of the elements of " { $snippet "x" } " (" { $snippet "Σ ‖xᵢ‖�" } "). Corresponds to the xASUM routines in BLAS." } ;
+
+HELP: Vswap
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "x=y" blas-vector-base } { "y=x" blas-vector-base } }
+{ $description "Swap the contents of " { $snippet "x" } " and " { $snippet "y" } " in place. Corresponds to the xSWAP routines in BLAS." }
+{ $side-effects "x" "y" } ;
+
+HELP: Viamax
+{ $values { "x" blas-vector-base } { "max-i" integer } }
+{ $description "Return the index of the element in " { $snippet "x" } " with the largest norm-1. If more than one element has the same norm-1, returns the smallest index. Corresponds to the IxAMAX routines in BLAS." } ;
+
+HELP: Vamax
+{ $values { "x" blas-vector-base } { "max" number } }
+{ $description "Return the value of the element in " { $snippet "x" } " with the largest norm-1. If more than one element has the same norm-1, returns the first element. Corresponds to the IxAMAX routines in BLAS." } ;
+
+{ Viamax Vamax } related-words
+
+HELP: <zero-vector>
+{ $values { "exemplar" blas-vector-base } { "zero" blas-vector-base } }
+{ $description "Return a vector of zeros with the same length and element type as " { $snippet "v" } ". The vector is constructed with an " { $snippet "inc" } " of zero, so it is not suitable for receiving results from BLAS functions; it is intended to be used as a term in other vector calculations. To construct an empty vector that can be used to receive results, see " { $link <empty-vector> } "." } ;
+
+HELP: n*V+V
+{ $values { "alpha" number } { "x" blas-vector-base } { "y" blas-vector-base } { "alpha*x+y" blas-vector-base } }
+{ $description "Calculate the vector sum " { $snippet "αx + y" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " and " { $snippet "y" } " containing the result. Corresponds to the xAXPY routines in BLAS." } ;
+
+HELP: n*V
+{ $values { "alpha" "a number" } { "x" blas-vector-base } { "alpha*x" blas-vector-base } }
+{ $description "Calculate the scalar-vector product " { $snippet "αx" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " containing the result. Corresponds to the xSCAL routines in BLAS." } ;
+
+HELP: V+
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "x+y" blas-vector-base } }
+{ $description "Calculate the vector sum " { $snippet "x + y" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " and " { $snippet "y" } " containing the result. Corresponds to the xAXPY routines in BLAS." } ;
+
+HELP: V-
+{ $values { "x" blas-vector-base } { "y" blas-vector-base } { "x-y" blas-vector-base } }
+{ $description "Calculate the vector difference " { $snippet "x – y" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " and " { $snippet "y" } " containing the result. Corresponds to the xAXPY routines in BLAS." } ;
+
+HELP: Vneg
+{ $values { "x" blas-vector-base } { "-x" blas-vector-base } }
+{ $description "Negate the elements of " { $snippet "x" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " containing the result." } ;
+
+HELP: V*n
+{ $values { "x" blas-vector-base } { "alpha" number } { "x*alpha" blas-vector-base } }
+{ $description "Calculate the scalar-vector product " { $snippet "αx" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " containing the result. Corresponds to the xSCAL routines in BLAS." } ;
+
+HELP: V/n
+{ $values { "x" blas-vector-base } { "alpha" number } { "x/alpha" blas-vector-base } }
+{ $description "Calculate the scalar-vector product " { $snippet "(1/α)x" } " and return a freshly-allocated vector with the same length as " { $snippet "x" } " containing the result. Corresponds to the xSCAL routines in BLAS." } ;
+
+{ n*V+V! n*V! n*V+V n*V V+ V- Vneg V*n V/n } related-words
+
+HELP: Vsub
+{ $values { "v" blas-vector-base } { "start" integer } { "length" integer } { "sub" blas-vector-base } }
+{ $description "Slice a subvector out of " { $snippet "v" } " starting at " { $snippet "start" } " with the given " { $snippet "length" } ". The subvector will share storage with the parent vector." } ;
diff --git a/extra/math/blas/vectors/vectors-tests.factor b/extra/math/blas/vectors/vectors-tests.factor
new file mode 100644
index 0000000000..5f9e8fdc42
--- /dev/null
+++ b/extra/math/blas/vectors/vectors-tests.factor
@@ -0,0 +1,180 @@
+USING: kernel math.blas.vectors math.blas.syntax sequences tools.test ;
+IN: math.blas.vectors.tests
+
+! clone
+
+[ svector{ 1.0 2.0 3.0 } ] [ svector{ 1.0 2.0 3.0 } clone ] unit-test
+[ f ] [ svector{ 1.0 2.0 3.0 } dup clone eq? ] unit-test
+[ dvector{ 1.0 2.0 3.0 } ] [ dvector{ 1.0 2.0 3.0 } clone ] unit-test
+[ f ] [ dvector{ 1.0 2.0 3.0 } dup clone eq? ] unit-test
+[ cvector{ 1.0 C{ 2.0 3.0 } 4.0 } ] [ cvector{ 1.0 C{ 2.0 3.0 } 4.0 } clone ] unit-test
+[ f ] [ cvector{ 1.0 C{ 2.0 3.0 } 4.0 } dup clone eq? ] unit-test
+[ zvector{ 1.0 C{ 2.0 3.0 } 4.0 } ] [ zvector{ 1.0 C{ 2.0 3.0 } 4.0 } clone ] unit-test
+[ f ] [ zvector{ 1.0 C{ 2.0 3.0 } 4.0 } dup clone eq? ] unit-test
+
+! nth
+
+[ 1.0 ] [ 2 svector{ 3.0 2.0 1.0 } nth ] unit-test
+[ 1.0 ] [ 2 dvector{ 3.0 2.0 1.0 } nth ] unit-test
+
+[ C{ 1.0 2.0 } ]
+[ 2 cvector{ C{ -3.0 -2.0 } C{ -1.0 0.0 } C{ 1.0 2.0 } } nth ] unit-test
+
+[ C{ 1.0 2.0 } ]
+[ 2 zvector{ C{ -3.0 -2.0 } C{ -1.0 0.0 } C{ 1.0 2.0 } } nth ] unit-test
+
+! set-nth
+
+[ svector{ 3.0 2.0 0.0 } ] [ 0.0 2 svector{ 3.0 2.0 1.0 } [ set-nth ] keep ] unit-test
+[ dvector{ 3.0 2.0 0.0 } ] [ 0.0 2 dvector{ 3.0 2.0 1.0 } [ set-nth ] keep ] unit-test
+
+[ cvector{ C{ -3.0 -2.0 } C{ -1.0 0.0 } C{ 3.0 4.0 } } ] [
+    C{ 3.0 4.0 } 2
+    cvector{ C{ -3.0 -2.0 } C{ -1.0 0.0 } C{ 1.0 2.0 } }
+    [ set-nth ] keep
+] unit-test
+[ zvector{ C{ -3.0 -2.0 } C{ -1.0 0.0 } C{ 3.0 4.0 } } ] [
+    C{ 3.0 4.0 } 2
+    zvector{ C{ -3.0 -2.0 } C{ -1.0 0.0 } C{ 1.0 2.0 } }
+    [ set-nth ] keep
+] unit-test
+
+! V+
+
+[ svector{ 11.0 22.0 } ] [ svector{ 1.0 2.0 } svector{ 10.0 20.0 } V+ ] unit-test
+[ dvector{ 11.0 22.0 } ] [ dvector{ 1.0 2.0 } dvector{ 10.0 20.0 } V+ ] unit-test
+
+[ cvector{ 11.0 C{ 22.0 33.0 } } ]
+[ cvector{ 1.0 C{ 2.0 3.0 } } cvector{ 10.0 C{ 20.0 30.0 } } V+ ]
+unit-test
+
+[ zvector{ 11.0 C{ 22.0 33.0 } } ]
+[ zvector{ 1.0 C{ 2.0 3.0 } } zvector{ 10.0 C{ 20.0 30.0 } } V+ ]
+unit-test
+
+! V-
+
+[ svector{ 9.0 18.0 } ] [ svector{ 10.0 20.0 } svector{ 1.0 2.0 } V- ] unit-test
+[ dvector{ 9.0 18.0 } ] [ dvector{ 10.0 20.0 } dvector{ 1.0 2.0 } V- ] unit-test
+
+[ cvector{ 9.0 C{ 18.0 27.0 } } ]
+[ cvector{ 10.0 C{ 20.0 30.0 } } cvector{ 1.0 C{ 2.0 3.0 } } V- ]
+unit-test
+
+[ zvector{ 9.0 C{ 18.0 27.0 } } ]
+[ zvector{ 10.0 C{ 20.0 30.0 } } zvector{ 1.0 C{ 2.0 3.0 } } V- ]
+unit-test
+
+! Vneg
+
+[ svector{ 1.0 -2.0 } ] [ svector{ -1.0 2.0 } Vneg ] unit-test
+[ dvector{ 1.0 -2.0 } ] [ dvector{ -1.0 2.0 } Vneg ] unit-test
+
+[ cvector{ 1.0 C{ -2.0 3.0 } } ] [ cvector{ -1.0 C{ 2.0 -3.0 } } Vneg ] unit-test
+[ zvector{ 1.0 C{ -2.0 3.0 } } ] [ zvector{ -1.0 C{ 2.0 -3.0 } } Vneg ] unit-test
+
+! n*V
+
+[ svector{ 100.0 200.0 } ] [ 10.0 svector{ 10.0 20.0 } n*V ] unit-test
+[ dvector{ 100.0 200.0 } ] [ 10.0 dvector{ 10.0 20.0 } n*V ] unit-test
+
+[ cvector{ C{ 20.0 4.0 } C{ 8.0 12.0 } } ]
+[ C{ 10.0 2.0 } cvector{ 2.0 C{ 1.0 1.0 } } n*V ]
+unit-test
+
+[ zvector{ C{ 20.0 4.0 } C{ 8.0 12.0 } } ]
+[ C{ 10.0 2.0 } zvector{ 2.0 C{ 1.0 1.0 } } n*V ]
+unit-test
+
+! V*n
+
+[ svector{ 100.0 200.0 } ] [ svector{ 10.0 20.0 } 10.0 V*n ] unit-test
+[ dvector{ 100.0 200.0 } ] [ dvector{ 10.0 20.0 } 10.0 V*n ] unit-test
+
+[ cvector{ C{ 20.0 4.0 } C{ 8.0 12.0 } } ]
+[ cvector{ 2.0 C{ 1.0 1.0 } } C{ 10.0 2.0 } V*n ]
+unit-test
+
+[ zvector{ C{ 20.0 4.0 } C{ 8.0 12.0 } } ]
+[ zvector{ 2.0 C{ 1.0 1.0 } } C{ 10.0 2.0 } V*n ]
+unit-test
+
+! V/n
+
+[ svector{ 1.0 2.0 } ] [ svector{ 4.0 8.0 } 4.0 V/n ] unit-test
+[ dvector{ 1.0 2.0 } ] [ dvector{ 4.0 8.0 } 4.0 V/n ] unit-test
+
+[ cvector{ C{ 0.0 -4.0 } 1.0 } ]
+[ cvector{ C{ 4.0 -4.0 } C{ 1.0 1.0 } } C{ 1.0 1.0 } V/n ]
+unit-test
+
+[ zvector{ C{ 0.0 -4.0 } 1.0 } ]
+[ zvector{ C{ 4.0 -4.0 } C{ 1.0 1.0 } } C{ 1.0 1.0 } V/n ]
+unit-test
+
+! V.
+
+[ 7.0 ] [ svector{ 1.0 2.5 } svector{ 2.0 2.0 } V. ] unit-test
+[ 7.0 ] [ dvector{ 1.0 2.5 } dvector{ 2.0 2.0 } V. ] unit-test
+[ C{ 7.0 7.0 } ] [ cvector{ C{ 1.0 1.0 } 2.5 } cvector{ 2.0 C{ 2.0 2.0 } } V. ] unit-test
+[ C{ 7.0 7.0 } ] [ zvector{ C{ 1.0 1.0 } 2.5 } zvector{ 2.0 C{ 2.0 2.0 } } V. ] unit-test
+
+! V.conj
+
+[ C{ 7.0 3.0 } ] [ cvector{ C{ 1.0 1.0 } 2.5 } cvector{ 2.0 C{ 2.0 2.0 } } V.conj ] unit-test
+[ C{ 7.0 3.0 } ] [ zvector{ C{ 1.0 1.0 } 2.5 } zvector{ 2.0 C{ 2.0 2.0 } } V.conj ] unit-test
+
+! Vnorm
+
+[ 5.0 ] [ svector{ 3.0 4.0 } Vnorm ] unit-test
+[ 5.0 ] [ dvector{ 3.0 4.0 } Vnorm ] unit-test
+
+[ 13.0 ] [ cvector{ C{ 3.0 4.0 } 12.0 } Vnorm ] unit-test
+[ 13.0 ] [ zvector{ C{ 3.0 4.0 } 12.0 } Vnorm ] unit-test
+
+! Vasum
+
+[ 6.0 ] [ svector{ 1.0 2.0 -3.0 } Vasum ] unit-test
+[ 6.0 ] [ dvector{ 1.0 2.0 -3.0 } Vasum ] unit-test
+
+[ 15.0 ] [ cvector{ 1.0 C{ -2.0 3.0 } C{ 4.0 -5.0 } } Vasum ] unit-test
+[ 15.0 ] [ zvector{ 1.0 C{ -2.0 3.0 } C{ 4.0 -5.0 } } Vasum ] unit-test
+
+! Vswap
+
+[ svector{ 2.0 2.0 } svector{ 1.0 1.0 } ]
+[ svector{ 1.0 1.0 } svector{ 2.0 2.0 } Vswap ]
+unit-test
+
+[ dvector{ 2.0 2.0 } dvector{ 1.0 1.0 } ]
+[ dvector{ 1.0 1.0 } dvector{ 2.0 2.0 } Vswap ]
+unit-test
+
+[ cvector{ 2.0 C{ 2.0 2.0 } } cvector{ C{ 1.0 1.0 } 1.0 } ]
+[ cvector{ C{ 1.0 1.0 } 1.0 } cvector{ 2.0 C{ 2.0 2.0 } } Vswap ]
+unit-test
+
+[ zvector{ 2.0 C{ 2.0 2.0 } } zvector{ C{ 1.0 1.0 } 1.0 } ]
+[ zvector{ C{ 1.0 1.0 } 1.0 } zvector{ 2.0 C{ 2.0 2.0 } } Vswap ]
+unit-test
+
+! Viamax
+
+[ 3 ] [ svector{ 1.0 -5.0 4.0 -6.0 -1.0 } Viamax ] unit-test
+[ 3 ] [ dvector{ 1.0 -5.0 4.0 -6.0 -1.0 } Viamax ] unit-test
+[ 0 ] [ cvector{ C{ 2.0 -5.0 } 4.0 -6.0 -1.0 } Viamax ] unit-test
+[ 0 ] [ zvector{ C{ 2.0 -5.0 } 4.0 -6.0 -1.0 } Viamax ] unit-test
+
+! Vamax
+
+[ -6.0 ] [ svector{ 1.0 -5.0 4.0 -6.0 -1.0 } Vamax ] unit-test
+[ -6.0 ] [ dvector{ 1.0 -5.0 4.0 -6.0 -1.0 } Vamax ] unit-test
+[ C{ 2.0 -5.0 } ] [ cvector{ C{ 2.0 -5.0 } 4.0 -6.0 -1.0 } Vamax ] unit-test
+[ C{ 2.0 -5.0 } ] [ zvector{ C{ 2.0 -5.0 } 4.0 -6.0 -1.0 } Vamax ] unit-test
+
+! Vsub
+
+[ svector{ -5.0 4.0 -6.0 } ] [ svector{ 1.0 -5.0 4.0 -6.0 -1.0 } 1 3 Vsub ] unit-test
+[ dvector{ -5.0 4.0 -6.0 } ] [ dvector{ 1.0 -5.0 4.0 -6.0 -1.0 } 1 3 Vsub ] unit-test
+[ cvector{ -5.0 C{ 4.0 3.0 } -6.0 } ] [ cvector{ 1.0 -5.0 C{ 4.0 3.0 } -6.0 -1.0 } 1 3 Vsub ] unit-test
+[ zvector{ -5.0 C{ 4.0 3.0 } -6.0 } ] [ zvector{ 1.0 -5.0 C{ 4.0 3.0 } -6.0 -1.0 } 1 3 Vsub ] unit-test
diff --git a/extra/math/blas/vectors/vectors.factor b/extra/math/blas/vectors/vectors.factor
new file mode 100755
index 0000000000..87bc6437c3
--- /dev/null
+++ b/extra/math/blas/vectors/vectors.factor
@@ -0,0 +1,301 @@
+USING: accessors alien alien.c-types arrays byte-arrays combinators
+combinators.short-circuit fry kernel macros math math.blas.cblas
+math.complex math.functions math.order multi-methods qualified
+sequences sequences.private generalizations ;
+QUALIFIED: syntax
+IN: math.blas.vectors
+
+TUPLE: blas-vector-base data length inc ;
+TUPLE: float-blas-vector < blas-vector-base ;
+TUPLE: double-blas-vector < blas-vector-base ;
+TUPLE: float-complex-blas-vector < blas-vector-base ;
+TUPLE: double-complex-blas-vector < blas-vector-base ;
+
+INSTANCE: float-blas-vector sequence
+INSTANCE: double-blas-vector sequence
+INSTANCE: float-complex-blas-vector sequence
+INSTANCE: double-complex-blas-vector sequence
+
+C: <float-blas-vector> float-blas-vector
+C: <double-blas-vector> double-blas-vector
+C: <float-complex-blas-vector> float-complex-blas-vector
+C: <double-complex-blas-vector> double-complex-blas-vector
+
+GENERIC: n*V+V! ( alpha x y -- y=alpha*x+y )
+GENERIC: n*V!   ( alpha x -- x=alpha*x )
+
+GENERIC: V. ( x y -- x.y )
+GENERIC: V.conj ( x y -- xconj.y )
+GENERIC: Vnorm ( x -- norm )
+GENERIC: Vasum ( x -- sum )
+GENERIC: Vswap ( x y -- x=y y=x )
+
+GENERIC: Viamax ( x -- max-i )
+
+GENERIC: element-type ( v -- type )
+
+METHOD: element-type { float-blas-vector }
+    drop "float" ;
+METHOD: element-type { double-blas-vector }
+    drop "double" ;
+METHOD: element-type { float-complex-blas-vector }
+    drop "CBLAS_C" ;
+METHOD: element-type { double-complex-blas-vector }
+    drop "CBLAS_Z" ;
+
+<PRIVATE
+
+GENERIC: (blas-vector-like) ( data length inc exemplar -- vector )
+
+METHOD: (blas-vector-like) { object object object float-blas-vector }
+    drop <float-blas-vector> ;
+METHOD: (blas-vector-like) { object object object double-blas-vector }
+    drop <double-blas-vector> ;
+METHOD: (blas-vector-like) { object object object float-complex-blas-vector }
+    drop <float-complex-blas-vector> ;
+METHOD: (blas-vector-like) { object object object double-complex-blas-vector }
+    drop <double-complex-blas-vector> ;
+
+: (prepare-copy) ( v element-size -- length v-data v-inc v-dest-data v-dest-inc )
+    [ [ length>> ] [ data>> ] [ inc>> ] tri ] dip
+    4 npick * <byte-array>
+    1 ;
+
+MACRO: (do-copy) ( copy make-vector -- )
+    '[ over 6 npick , 2dip 1 @ ] ;
+
+: (prepare-swap) ( v1 v2 -- length v1-data v1-inc v2-data v2-inc v1 v2 )
+    [
+        [ [ length>> ] bi@ min ]
+        [ [ [ data>> ] [ inc>> ] bi ] bi@ ] 2bi
+    ] 2keep ;
+
+: (prepare-axpy) ( n v1 v2 -- length n v1-data v1-inc v2-data v2-inc v2 )
+    [
+        [ [ length>> ] bi@ min swap ]
+        [ [ [ data>> ] [ inc>> ] bi ] bi@ ] 2bi
+    ] keep ;
+
+: (prepare-scal) ( n v -- length n v-data v-inc v )
+    [ [ length>> swap ] [ data>> ] [ inc>> ] tri ] keep ;
+
+: (prepare-dot) ( v1 v2 -- length v1-data v1-inc v2-data v2-inc )
+    [ [ length>> ] bi@ min ]
+    [ [ [ data>> ] [ inc>> ] bi ] bi@ ] 2bi ;
+
+: (prepare-nrm2) ( v -- length v1-data v1-inc )
+    [ length>> ] [ data>> ] [ inc>> ] tri ;
+
+: (flatten-complex-sequence) ( seq -- seq' )
+    [ [ real-part ] [ imaginary-part ] bi 2array ] map concat ;
+
+: (>c-complex) ( complex -- alien )
+    [ real-part ] [ imaginary-part ] bi 2array >c-float-array ;
+: (>z-complex) ( complex -- alien )
+    [ real-part ] [ imaginary-part ] bi 2array >c-double-array ;
+
+: (c-complex>) ( alien -- complex )
+    2 c-float-array> first2 rect> ;
+: (z-complex>) ( alien -- complex )
+    2 c-double-array> first2 rect> ;
+
+: (prepare-nth) ( n v -- n*inc v-data )
+    [ inc>> ] [ data>> ] bi [ * ] dip ;
+
+MACRO: (complex-nth) ( nth-quot -- )
+    '[ 
+        [ 2 * dup 1+ ] dip
+        , curry bi@ rect>
+    ] ;
+
+: (c-complex-nth) ( n alien -- complex )
+    [ float-nth ] (complex-nth) ;
+: (z-complex-nth) ( n alien -- complex )
+    [ double-nth ] (complex-nth) ;
+
+MACRO: (set-complex-nth) ( set-nth-quot -- )
+    '[
+        [
+            [ [ real-part ] [ imaginary-part ] bi ]
+            [ 2 * dup 1+ ] bi*
+            swapd
+        ] dip
+        , curry 2bi@ 
+    ] ;
+
+: (set-c-complex-nth) ( complex n alien -- )
+    [ set-float-nth ] (set-complex-nth) ;
+: (set-z-complex-nth) ( complex n alien -- )
+    [ set-double-nth ] (set-complex-nth) ;
+
+PRIVATE>
+
+: <zero-vector> ( exemplar -- zero )
+    [ element-type <c-object> ]
+    [ length>> 0 ]
+    [ (blas-vector-like) ] tri ;
+
+: <empty-vector> ( length exemplar -- vector )
+    [ element-type <c-array> ]
+    [ 1 swap ] 2bi
+    (blas-vector-like) ;
+
+syntax:M: blas-vector-base length
+    length>> ;
+
+syntax:M: float-blas-vector nth-unsafe
+    (prepare-nth) float-nth ;
+syntax:M: float-blas-vector set-nth-unsafe
+    (prepare-nth) set-float-nth ;
+
+syntax:M: double-blas-vector nth-unsafe
+    (prepare-nth) double-nth ;
+syntax:M: double-blas-vector set-nth-unsafe
+    (prepare-nth) set-double-nth ;
+
+syntax:M: float-complex-blas-vector nth-unsafe
+    (prepare-nth) (c-complex-nth) ;
+syntax:M: float-complex-blas-vector set-nth-unsafe
+    (prepare-nth) (set-c-complex-nth) ;
+
+syntax:M: double-complex-blas-vector nth-unsafe
+    (prepare-nth) (z-complex-nth) ;
+syntax:M: double-complex-blas-vector set-nth-unsafe
+    (prepare-nth) (set-z-complex-nth) ;
+
+syntax:M: blas-vector-base equal?
+    {
+        [ [ length ] bi@ = ]
+        [ [ = ] 2all? ]
+    } 2&& ;
+
+: >float-blas-vector ( seq -- v )
+    [ >c-float-array ] [ length ] bi 1 <float-blas-vector> ;
+: >double-blas-vector ( seq -- v )
+    [ >c-double-array ] [ length ] bi 1 <double-blas-vector> ;
+: >float-complex-blas-vector ( seq -- v )
+    [ (flatten-complex-sequence) >c-float-array ] [ length ] bi
+    1 <float-complex-blas-vector> ;
+: >double-complex-blas-vector ( seq -- v )
+    [ (flatten-complex-sequence) >c-double-array ] [ length ] bi
+    1 <double-complex-blas-vector> ;
+
+syntax:M: float-blas-vector clone
+    "float" heap-size (prepare-copy)
+    [ cblas_scopy ] [ <float-blas-vector> ] (do-copy) ;
+syntax:M: double-blas-vector clone
+    "double" heap-size (prepare-copy)
+    [ cblas_dcopy ] [ <double-blas-vector> ] (do-copy) ;
+syntax:M: float-complex-blas-vector clone
+    "CBLAS_C" heap-size (prepare-copy)
+    [ cblas_ccopy ] [ <float-complex-blas-vector> ] (do-copy) ;
+syntax:M: double-complex-blas-vector clone
+    "CBLAS_Z" heap-size (prepare-copy)
+    [ cblas_zcopy ] [ <double-complex-blas-vector> ] (do-copy) ;
+
+METHOD: Vswap { float-blas-vector float-blas-vector }
+    (prepare-swap) [ cblas_sswap ] 2dip ;
+METHOD: Vswap { double-blas-vector double-blas-vector }
+    (prepare-swap) [ cblas_dswap ] 2dip ;
+METHOD: Vswap { float-complex-blas-vector float-complex-blas-vector }
+    (prepare-swap) [ cblas_cswap ] 2dip ;
+METHOD: Vswap { double-complex-blas-vector double-complex-blas-vector }
+    (prepare-swap) [ cblas_zswap ] 2dip ;
+
+METHOD: n*V+V! { real float-blas-vector float-blas-vector }
+    (prepare-axpy) [ cblas_saxpy ] dip ;
+METHOD: n*V+V! { real double-blas-vector double-blas-vector }
+    (prepare-axpy) [ cblas_daxpy ] dip ;
+METHOD: n*V+V! { number float-complex-blas-vector float-complex-blas-vector }
+    [ (>c-complex) ] 2dip
+    (prepare-axpy) [ cblas_caxpy ] dip ;
+METHOD: n*V+V! { number double-complex-blas-vector double-complex-blas-vector }
+    [ (>z-complex) ] 2dip
+    (prepare-axpy) [ cblas_zaxpy ] dip ;
+
+METHOD: n*V! { real float-blas-vector }
+    (prepare-scal) [ cblas_sscal ] dip ;
+METHOD: n*V! { real double-blas-vector }
+    (prepare-scal) [ cblas_dscal ] dip ;
+METHOD: n*V! { number float-complex-blas-vector }
+    [ (>c-complex) ] dip
+    (prepare-scal) [ cblas_cscal ] dip ;
+METHOD: n*V! { number double-complex-blas-vector }
+    [ (>z-complex) ] dip
+    (prepare-scal) [ cblas_zscal ] dip ;
+
+: n*V+V ( alpha x y -- alpha*x+y ) clone n*V+V! ; inline
+: n*V ( alpha x -- alpha*x ) clone n*V! ; inline
+
+: V+ ( x y -- x+y )
+    1.0 -rot n*V+V ; inline
+: V- ( x y -- x-y )
+    -1.0 spin n*V+V ; inline
+
+: Vneg ( x -- -x )
+    -1.0 swap n*V ; inline
+
+: V*n ( x alpha -- x*alpha )
+    swap n*V ; inline
+: V/n ( x alpha -- x/alpha )
+    recip swap n*V ; inline
+
+METHOD: V. { float-blas-vector float-blas-vector }
+    (prepare-dot) cblas_sdot ;
+METHOD: V. { double-blas-vector double-blas-vector }
+    (prepare-dot) cblas_ddot ;
+METHOD: V. { float-complex-blas-vector float-complex-blas-vector }
+    (prepare-dot)
+    "CBLAS_C" <c-object> [ cblas_cdotu_sub ] keep (c-complex>) ;
+METHOD: V. { double-complex-blas-vector double-complex-blas-vector }
+    (prepare-dot)
+    "CBLAS_Z" <c-object> [ cblas_zdotu_sub ] keep (z-complex>) ;
+
+METHOD: V.conj { float-blas-vector float-blas-vector }
+    (prepare-dot) cblas_sdot ;
+METHOD: V.conj { double-blas-vector double-blas-vector }
+    (prepare-dot) cblas_ddot ;
+METHOD: V.conj { float-complex-blas-vector float-complex-blas-vector }
+    (prepare-dot)
+    "CBLAS_C" <c-object> [ cblas_cdotc_sub ] keep (c-complex>) ;
+METHOD: V.conj { double-complex-blas-vector double-complex-blas-vector }
+    (prepare-dot)
+    "CBLAS_Z" <c-object> [ cblas_zdotc_sub ] keep (z-complex>) ;
+
+METHOD: Vnorm { float-blas-vector }
+    (prepare-nrm2) cblas_snrm2 ;
+METHOD: Vnorm { double-blas-vector }
+    (prepare-nrm2) cblas_dnrm2 ;
+METHOD: Vnorm { float-complex-blas-vector }
+    (prepare-nrm2) cblas_scnrm2 ;
+METHOD: Vnorm { double-complex-blas-vector }
+    (prepare-nrm2) cblas_dznrm2 ;
+
+METHOD: Vasum { float-blas-vector }
+    (prepare-nrm2) cblas_sasum ;
+METHOD: Vasum { double-blas-vector }
+    (prepare-nrm2) cblas_dasum ;
+METHOD: Vasum { float-complex-blas-vector }
+    (prepare-nrm2) cblas_scasum ;
+METHOD: Vasum { double-complex-blas-vector }
+    (prepare-nrm2) cblas_dzasum ;
+
+METHOD: Viamax { float-blas-vector }
+    (prepare-nrm2) cblas_isamax ;
+METHOD: Viamax { double-blas-vector }
+    (prepare-nrm2) cblas_idamax ;
+METHOD: Viamax { float-complex-blas-vector }
+    (prepare-nrm2) cblas_icamax ;
+METHOD: Viamax { double-complex-blas-vector }
+    (prepare-nrm2) cblas_izamax ;
+
+: Vamax ( x -- max )
+    [ Viamax ] keep nth ; inline
+
+: Vsub ( v start length -- sub )
+    rot [
+        [
+            nip [ inc>> ] [ element-type heap-size ] [ data>> ] tri
+            [ * * ] dip <displaced-alien>
+        ] [ swap 2nip ] [ 2nip inc>> ] 3tri
+    ] keep (blas-vector-like) ;
diff --git a/extra/math/combinatorics/combinatorics-tests.factor b/extra/math/combinatorics/combinatorics-tests.factor
index e6a2824433..5ef435a4e0 100644
--- a/extra/math/combinatorics/combinatorics-tests.factor
+++ b/extra/math/combinatorics/combinatorics-tests.factor
@@ -13,11 +13,6 @@ IN: math.combinatorics.tests
 [ { 0 1 3 2 } ] [ 1 4 permutation-indices ] unit-test
 [ { 1 2 0 6 3 5 4 } ] [ 859 7 permutation-indices ] unit-test
 
-[ { "b" "d" } ] [ { "a" "b" "c" "d" } { 1 3 } reorder ] unit-test
-[ { "a" "b" "c" "d" } ] [ { "a" "b" "c" "d" } { 0 1 2 3 } reorder ] unit-test
-[ { "d" "c" "b" "a" } ] [ { "a" "b" "c" "d" } { 3 2 1 0 } reorder ] unit-test
-[ { "d" "a" "b" "c" } ] [ { "a" "b" "c" "d" } { 3 0 1 2 } reorder ] unit-test
-
 [ 1 ] [ 0 factorial ] unit-test
 [ 1 ] [ 1 factorial ] unit-test
 [ 3628800 ] [ 10 factorial ] unit-test
diff --git a/extra/math/combinatorics/combinatorics.factor b/extra/math/combinatorics/combinatorics.factor
index 3376ea640b..6193edfb91 100644
--- a/extra/math/combinatorics/combinatorics.factor
+++ b/extra/math/combinatorics/combinatorics.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2007, 2008 Slava Pestov, Doug Coleman, Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: assocs kernel math math.order math.ranges mirrors
-namespaces sequences sorting ;
+namespaces sequences sequences.lib sorting ;
 IN: math.combinatorics
 
 <PRIVATE
@@ -16,7 +16,7 @@ IN: math.combinatorics
 !     http://msdn2.microsoft.com/en-us/library/aa302371.aspx
 
 : factoradic ( n -- factoradic )
-    0 [ over 0 > ] [ 1+ [ /mod ] keep swap ] [ ] unfold reverse 2nip ;
+    0 [ over 0 > ] [ 1+ [ /mod ] keep swap ] [ ] produce reverse 2nip ;
 
 : (>permutation) ( seq n -- seq )
     [ [ dupd >= [ 1+ ] when ] curry map ] keep prefix ;
@@ -27,9 +27,6 @@ IN: math.combinatorics
 : permutation-indices ( n seq -- permutation )
     length [ factoradic ] dip 0 pad-left >permutation ;
 
-: reorder ( seq indices -- seq )
-    [ [ over nth , ] each drop ] { } make ;
-
 PRIVATE>
 
 : factorial ( n -- n! )
@@ -42,7 +39,7 @@ PRIVATE>
     twiddle [ nPk ] keep factorial / ;
 
 : permutation ( n seq -- seq )
-    tuck permutation-indices reorder ;
+    tuck permutation-indices nths ;
 
 : all-permutations ( seq -- seq )
     [
diff --git a/extra/math/derivatives/authors.txt b/extra/math/derivatives/authors.txt
new file mode 100644
index 0000000000..3be8a6d4d3
--- /dev/null
+++ b/extra/math/derivatives/authors.txt
@@ -0,0 +1,2 @@
+Reginald Ford
+Eduardo Cavazos
\ No newline at end of file
diff --git a/extra/math/derivatives/derivatives-docs.factor b/extra/math/derivatives/derivatives-docs.factor
new file mode 100644
index 0000000000..bbb793fe92
--- /dev/null
+++ b/extra/math/derivatives/derivatives-docs.factor
@@ -0,0 +1,103 @@
+USING: help.markup help.syntax math math.functions ;
+IN: math.derivatives
+
+HELP: derivative ( x function -- m )
+{ $values { "x" "a position on the function" } { "function" "a differentiable function" } { "m" number } }
+{ $description
+    "Approximates the slope of the tangent line by using Ridders' "
+    "method of computing derivatives, from the chapter \"Accurate computation "
+    "of F'(x) and F'(x)F''(x)\", from \"Advances in Engineering Software, Vol. 4, pp. 75-76 ."
+}
+{ $examples
+    { $example
+        "USING: math math.derivatives prettyprint ;"
+        "4 [ sq ] derivative >integer ."
+        "8"
+    }
+    { $notes
+        "For applied scientists, you may play with the settings "
+        "in the source file to achieve arbitrary accuracy. "
+    }
+} ;
+
+HELP: (derivative)
+{ $values
+    { "x" "a position on the function" }
+    { "func" "a differentiable function" }
+    {
+        "h" "distance between the points of the first secant line used for "
+        "approximation of the tangent. This distance will be divided "
+        "constantly, by " { $link con } ". See " { $link init-hh }
+        " for the code which enforces this. H should be .001 to .5 -- too "
+        "small can cause bad convergence. Also, h should be small enough "
+        "to give the correct sgn(f'(x)). In other words, if you're expecting "
+        "a positive derivative, make h small enough to give the same "
+        "when plugged into the academic limit definition of a derivative. "
+        "See " { $link update-hh } " for the code which performs this task."
+    }
+    {
+        "err" "maximum tolerance of increase in error. For example, if this "
+        "is set to 2.0, the program will terminate with its nearest answer "
+        "when the error multiplies by 2. See " { $link check-safe } " for "
+        "the enforcing code."
+    }
+    {   "ans" number }
+    {   "error" number }
+}
+{ $description
+    "Approximates the slope of the tangent line by using Ridders' "
+    "method of computing derivatives, from the chapter \"Accurate computation "
+    "of F'(x) and F'(x)F''(x)\", from \"Advances in Engineering Software, "
+    "Vol. 4, pp. 75-76 ."
+}
+{ $examples
+    { $example
+        "USING: math math.derivatives prettyprint ;"
+        "4 [ sq ] derivative >integer ."
+        "8"
+    }
+    { $notes
+        "For applied scientists, you may play with the settings "
+        "in the source file to achieve arbitrary accuracy. "
+    }
+} ;
+
+HELP: derivative-func
+{ $values { "func" "a differentiable function" } { "der" "the derivative" } }
+{ $description
+    "Provides the derivative of the function. The implementation simply "
+    "attaches the " { $link derivative } " word to the end of the function."
+}
+{ $examples
+    { $example
+        "USING: kernel math.derivatives math.functions math.trig prettyprint ;"
+        "60 deg>rad [ sin ] derivative-func call 0.5 .001 ~ ."
+        "t"
+    }
+    { $notes
+        "Without a heavy algebraic system, derivatives must be "
+        "approximated. With the current settings, there is a fair trade of "
+        "speed and accuracy; the first 12 digits "
+        "will always be correct with " { $link sin } " and " { $link cos }
+        ". The following code performs a minumum and maximum error test."
+        { $code
+            "USING: kernel math math.functions math.trig sequences sequences.lib ;"
+            "360"
+            "["
+            "           deg>rad"
+            "            [ [ sin ] derivative-func call ]"
+            "           ! Note: the derivative of sin is cos"
+            "            [ cos ]"
+            "       bi - abs"
+            "] map minmax"
+            
+        }
+    }
+} ;
+
+ARTICLE: "derivatives" "The Derivative Toolkit"
+"A toolkit for computing the derivative of functions."
+{ $subsection derivative }
+{ $subsection derivative-func }
+{ $subsection (derivative) } ;
+ABOUT: "derivatives"
diff --git a/extra/math/derivatives/derivatives.factor b/extra/math/derivatives/derivatives.factor
new file mode 100644
index 0000000000..ad8d944bfe
--- /dev/null
+++ b/extra/math/derivatives/derivatives.factor
@@ -0,0 +1,123 @@
+
+USING: kernel continuations combinators sequences math
+      math.order math.ranges accessors float-arrays ;
+
+IN: math.derivatives
+
+TUPLE: state x func h err i j errt fac hh ans a done ;
+
+: largest-float ( -- x ) HEX: 7fefffffffffffff bits>double ; foldable
+: ntab ( -- val ) 8 ;
+: con ( -- val ) 1.6 ;
+: con2 ( -- val ) con con * ;
+: big ( -- val ) largest-float ;
+: safe ( -- val ) 2.0 ;
+
+! Yes, this was ported from C code.
+: a[i][i]     ( state -- elt ) [ i>>     ] [ i>>     ] [ a>> ] tri nth nth ;
+: a[j][i]     ( state -- elt ) [ i>>     ] [ j>>     ] [ a>> ] tri nth nth ;
+: a[j-1][i]   ( state -- elt ) [ i>>     ] [ j>> 1 - ] [ a>> ] tri nth nth ;
+: a[j-1][i-1] ( state -- elt ) [ i>> 1 - ] [ j>> 1 - ] [ a>> ] tri nth nth ;
+: a[i-1][i-1] ( state -- elt ) [ i>> 1 - ] [ i>> 1 - ] [ a>> ] tri nth nth ;
+
+: check-h ( state -- state )
+ dup h>> 0 = [ "h must be nonzero in dfridr" throw ] when ;
+: init-a     ( state -- state ) ntab [ ntab <float-array> ] replicate >>a ;
+: init-hh    ( state -- state ) dup h>> >>hh ;
+: init-err   ( state -- state ) big >>err ;
+: update-hh  ( state -- state ) dup hh>> con / >>hh ;
+: reset-fac  ( state -- state ) con2 >>fac ;
+: update-fac ( state -- state ) dup fac>> con2 * >>fac ;
+
+! If error is decreased, save the improved answer
+: error-decreased? ( state -- state ? ) [ ] [ errt>> ] [ err>> ] tri <= ;
+: save-improved-answer ( state -- state )
+ dup err>>   >>errt
+ dup a[j][i] >>ans ;
+
+! If higher order is worse by a significant factor SAFE, then quit early.
+: check-safe ( state -- state )
+ dup
+ [ [ a[i][i] ] [ a[i-1][i-1] ] bi - abs ] [ err>> safe * ] bi >=
+   [ t >>done ]
+ when ;
+: x+hh ( state -- val ) [ x>> ] [ hh>> ] bi + ;
+: x-hh ( state -- val ) [ x>> ] [ hh>> ] bi - ;
+: limit-approx ( state -- val )
+ [
+   [ [ x+hh ] [ func>> ] bi call ]
+   [ [ x-hh ] [ func>> ] bi call ]
+   bi -
+ ]
+ [ hh>> 2.0 * ]
+ bi / ;
+: a[0][0]! ( state -- state )
+ { [ ] [ limit-approx ] [ drop 0 ] [ drop 0 ] [ a>> ] } cleave nth set-nth ;
+: a[0][i]! ( state -- state )
+ { [ ] [ limit-approx ] [ i>> ] [ drop 0 ] [ a>> ] } cleave nth set-nth ;
+: a[j-1][i]*fac ( state -- val ) [ a[j-1][i] ] [ fac>> ] bi * ;
+: new-a[j][i] ( state -- val )
+ [ [ a[j-1][i]*fac ] [ a[j-1][i-1] ] bi - ]
+ [ fac>> 1.0 - ]
+ bi / ;
+: a[j][i]! ( state -- state )
+ { [ ] [ new-a[j][i] ] [ i>> ] [ j>> ] [ a>> ] } cleave nth set-nth ;
+
+: update-errt ( state -- state )
+ dup
+    [ [ a[j][i] ] [ a[j-1][i]   ] bi - abs ]
+    [ [ a[j][i] ] [ a[j-1][i-1] ] bi - abs ]
+ bi max
+ >>errt ;
+
+: not-done? ( state -- state ? ) dup done>> not ;
+
+: derive ( state -- state )
+ init-a
+ check-h
+ init-hh
+ a[0][0]!
+ init-err
+ 1 ntab [a,b)
+  [
+     >>i
+     not-done?
+       [
+         update-hh
+         a[0][i]!
+         reset-fac
+         1 over i>> [a,b]
+           [
+             >>j
+             a[j][i]!
+             update-fac
+             update-errt
+             error-decreased? [ save-improved-answer ] when
+           ]
+         each
+         check-safe
+       ]
+     when
+   ]
+ each ;
+
+: derivative-state ( x func h err -- state )
+    state new
+    swap >>err
+    swap >>h
+    swap >>func
+    swap >>x ;
+
+! For scientists:
+! h should be .001 to .5 -- too small can cause bad convergence,
+! h should be small enough to give the correct sgn(f'(x))
+! err is the max tolerance of gain in error for a single iteration-
+: (derivative) ( x func h err -- ans error )
+ derivative-state
+ derive
+    [ ans>> ]
+    [ errt>> ]
+ bi ;
+
+: derivative ( x func -- m ) 0.01 2.0 (derivative) drop ; 
+: derivative-func ( func -- der ) [ derivative ] curry ;
\ No newline at end of file
diff --git a/extra/math/erato/erato-tests.factor b/extra/math/erato/erato-tests.factor
index 9244fa62e2..041cb8dc3a 100644
--- a/extra/math/erato/erato-tests.factor
+++ b/extra/math/erato/erato-tests.factor
@@ -1,6 +1,6 @@
 ! Copyright (c) 2007 Samuel Tardieu.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: lazy-lists math.erato tools.test ;
+USING: lists.lazy math.erato tools.test ;
 IN: math.erato.tests
 
 [ { 2 3 5 7 11 13 17 19 } ] [ 20 lerato list>array ] unit-test
diff --git a/extra/math/erato/erato.factor b/extra/math/erato/erato.factor
index 40de92e3b1..f836d71a99 100644
--- a/extra/math/erato/erato.factor
+++ b/extra/math/erato/erato.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2007 Samuel Tardieu.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: bit-arrays kernel lazy-lists math math.functions math.primes.list
-       math.ranges sequences ;
+USING: bit-arrays kernel lists.lazy math math.functions math.primes.list
+       math.ranges sequences accessors ;
 IN: math.erato
 
 <PRIVATE
@@ -12,21 +12,21 @@ TUPLE: erato limit bits latest ;
   2/ 1- ; inline
 
 : is-prime ( n erato -- bool )
-  >r ind r> erato-bits nth ; inline
+  >r ind r> bits>> nth ; inline
 
 : indices ( n erato -- range )
-  erato-limit ind over 3 * ind swap rot <range> ;
+  limit>> ind over 3 * ind swap rot <range> ;
 
 : mark-multiples ( n erato -- )
-  over sq over erato-limit <=
-  [ [ indices ] keep erato-bits [ f -rot set-nth ] curry each ] [ 2drop ] if ;
+  over sq over limit>> <=
+  [ [ indices ] keep bits>> [ f -rot set-nth ] curry each ] [ 2drop ] if ;
 
 : <erato> ( n -- erato )
   dup ind 1+ <bit-array> 1 over set-bits erato boa ;
 
 : next-prime ( erato -- prime/f )
-  [ erato-latest 2 + ] keep [ set-erato-latest ] 2keep
-  2dup erato-limit <=
+  [ 2 + ] change-latest [ latest>> ] keep
+  2dup limit>> <=
   [
     2dup is-prime [ dupd mark-multiples ] [ nip next-prime ] if
   ] [
diff --git a/extra/math/fft/fft.factor b/extra/math/fft/fft.factor
index 4d4068158e..682d2a49db 100644
--- a/extra/math/fft/fft.factor
+++ b/extra/math/fft/fft.factor
@@ -1,7 +1,7 @@
 ! Fast Fourier Transform, copyright (C) 2007 Hans Schmid
 ! http://dressguardmeister.blogspot.com/2007/01/fft.html
 USING: arrays sequences math math.vectors math.constants
-math.functions kernel splitting columns ;
+math.functions kernel splitting grouping columns ;
 IN: math.fft
 
 : n^v ( n v -- w ) [ ^ ] with map ;
diff --git a/extra/math/function-tools/authors.txt b/extra/math/function-tools/authors.txt
new file mode 100644
index 0000000000..137b1605da
--- /dev/null
+++ b/extra/math/function-tools/authors.txt
@@ -0,0 +1 @@
+Reginald Ford
\ No newline at end of file
diff --git a/extra/math/function-tools/function-tools.factor b/extra/math/function-tools/function-tools.factor
new file mode 100644
index 0000000000..ec93a0891a
--- /dev/null
+++ b/extra/math/function-tools/function-tools.factor
@@ -0,0 +1,9 @@
+! Copyright © 2008 Reginald Keith Ford II
+! Tools for quickly comparing, transforming, and evaluating mathematical Factor functions
+
+USING: kernel math arrays sequences sequences.lib ;
+IN: math.function-tools 
+: difference-func ( func func -- func ) [ bi - ] 2curry ; inline
+: eval ( x func -- pt ) dupd call 2array ; inline
+: eval-inverse ( y func -- pt ) dupd call swap 2array ; inline
+: eval3d ( x y func -- pt ) [ 2dup ] dip call 3array ; inline
diff --git a/extra/math/haar/haar.factor b/extra/math/haar/haar.factor
index 9254fd0ce7..f1bf87161c 100644
--- a/extra/math/haar/haar.factor
+++ b/extra/math/haar/haar.factor
@@ -1,5 +1,5 @@
 ! Haar wavelet transform -- http://dmr.ath.cx/gfx/haar/
-USING: sequences math kernel splitting columns ;
+USING: sequences math kernel splitting grouping columns ;
 IN: math.haar
 
 : averages ( seq -- seq )
diff --git a/extra/math/matrices/elimination/elimination.factor b/extra/math/matrices/elimination/elimination.factor
index 7638550129..6e83a61eb3 100755
--- a/extra/math/matrices/elimination/elimination.factor
+++ b/extra/math/matrices/elimination/elimination.factor
@@ -11,7 +11,7 @@ SYMBOL: matrix
 
 : nth-row ( row# -- seq ) matrix get nth ;
 
-: change-row ( row# quot -- | quot: seq -- seq )
+: change-row ( row# quot: ( seq -- seq ) -- )
     matrix get swap change-nth ; inline
 
 : exchange-rows ( row# row# -- ) matrix get exchange ;
@@ -31,10 +31,10 @@ SYMBOL: matrix
     >r over r> nth dup zero? [
         3drop 0
     ] [
-        >r nth dup zero? [
-            r> 2drop 0
+        >r nth dup zero? r> swap [
+            2drop 0
         ] [
-            r> swap / neg
+            swap / neg
         ] if
     ] if ;
 
@@ -69,7 +69,8 @@ SYMBOL: matrix
 : echelon ( matrix -- matrix' )
     [ 0 0 (echelon) ] with-matrix ;
 
-: nonzero-rows [ [ zero? ] all? not ] filter ;
+: nonzero-rows ( matrix -- matrix' )
+    [ [ zero? ] all? not ] filter ;
 
 : null/rank ( matrix -- null rank )
     echelon dup length swap nonzero-rows length [ - ] keep ;
diff --git a/extra/math/matrices/matrices.factor b/extra/math/matrices/matrices.factor
index 294cd6278a..529ddb083a 100755
--- a/extra/math/matrices/matrices.factor
+++ b/extra/math/matrices/matrices.factor
@@ -35,13 +35,13 @@ IN: math.matrices
 
 <PRIVATE
 
-: x first ; inline
-: y second ; inline
-: z third ; inline
+: x ( seq -- elt ) first ; inline
+: y ( seq -- elt ) second ; inline
+: z ( seq -- elt ) third ; inline
 
-: i [ [ y ] [ z ] bi* * ] [ [ z ] [ y ] bi* * ] 2bi - ;
-: j [ [ z ] [ x ] bi* * ] [ [ x ] [ z ] bi* * ] 2bi - ;
-: k [ [ y ] [ x ] bi* * ] [ [ x ] [ y ] bi* * ] 2bi - ;
+: i ( seq1 seq2 -- n ) [ [ y ] [ z ] bi* * ] [ [ z ] [ y ] bi* * ] 2bi - ;
+: j ( seq1 seq2 -- n ) [ [ z ] [ x ] bi* * ] [ [ x ] [ z ] bi* * ] 2bi - ;
+: k ( seq1 seq2 -- n ) [ [ y ] [ x ] bi* * ] [ [ x ] [ y ] bi* * ] 2bi - ;
 
 PRIVATE>
 
diff --git a/extra/math/newtons-method/authors.txt b/extra/math/newtons-method/authors.txt
new file mode 100644
index 0000000000..137b1605da
--- /dev/null
+++ b/extra/math/newtons-method/authors.txt
@@ -0,0 +1 @@
+Reginald Ford
\ No newline at end of file
diff --git a/extra/math/newtons-method/newtons-method.factor b/extra/math/newtons-method/newtons-method.factor
new file mode 100644
index 0000000000..5bf71deac8
--- /dev/null
+++ b/extra/math/newtons-method/newtons-method.factor
@@ -0,0 +1,11 @@
+! Copyright © 2008 Reginald Keith Ford II
+! Newton's Method of approximating roots
+
+USING: kernel math math.derivatives ;
+IN: math.newtons-method
+
+<PRIVATE
+: newton-step ( x function -- x2 ) dupd [ call ] [ derivative ] 2bi / - ;
+: newton-precision ( -- n ) 13 ;
+PRIVATE>
+: newtons-method ( guess function -- x ) newton-precision [ [ newton-step ] keep ] times drop ;
diff --git a/extra/math/physics/pos/pos.factor b/extra/math/physics/pos/pos.factor
new file mode 100644
index 0000000000..69155686c8
--- /dev/null
+++ b/extra/math/physics/pos/pos.factor
@@ -0,0 +1,17 @@
+
+USING: kernel sequences multi-methods accessors math.vectors ;
+
+IN: math.physics.pos
+
+TUPLE: pos pos ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+GENERIC: distance ( a b -- c )
+
+METHOD: distance { sequence sequence } v- norm ;
+
+METHOD: distance { pos pos } [ pos>> ] bi@ distance ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/math/physics/vel/vel.factor b/extra/math/physics/vel/vel.factor
new file mode 100644
index 0000000000..5fc815e9b8
--- /dev/null
+++ b/extra/math/physics/vel/vel.factor
@@ -0,0 +1,7 @@
+
+USING: math.physics.pos ;
+
+IN: math.physics.vel
+
+TUPLE: vel < pos vel ;
+
diff --git a/extra/math/points/points.factor b/extra/math/points/points.factor
deleted file mode 100644
index 5efd6e07e0..0000000000
--- a/extra/math/points/points.factor
+++ /dev/null
@@ -1,22 +0,0 @@
-
-USING: kernel arrays math.vectors ;
-
-IN: math.points
-
-<PRIVATE
-
-: X ( x -- point )      0   0 3array ;
-: Y ( y -- point ) 0 swap   0 3array ;
-: Z ( z -- point ) 0    0 rot 3array ;
-
-PRIVATE>
-
-: v+x ( seq x -- seq ) X v+ ;
-: v-x ( seq x -- seq ) X v- ;
-
-: v+y ( seq y -- seq ) Y v+ ;
-: v-y ( seq y -- seq ) Y v- ;
-
-: v+z ( seq z -- seq ) Z v+ ;
-: v-z ( seq z -- seq ) Z v- ;
-
diff --git a/extra/math/polynomials/polynomials-tests.factor b/extra/math/polynomials/polynomials-tests.factor
index 73215f9167..cccf24fbff 100644
--- a/extra/math/polynomials/polynomials-tests.factor
+++ b/extra/math/polynomials/polynomials-tests.factor
@@ -22,7 +22,7 @@ USING: kernel math math.polynomials tools.test ;
 [ V{ 1 0 1 } V{ 0 0 0 } ] [ { 1 1 1 1 } { 1 1 } p/mod ] unit-test
 [ V{ 1 0 1 } V{ 0 0 0 } ] [ { 1 1 1 1 } { 1 1 0 0 0 0 0 0 } p/mod ] unit-test
 [ V{ 1 0 1 } V{ 0 0 0 } ] [ { 1 1 1 1 0 0 0 0 } { 1 1 0 0 } p/mod ] unit-test
-[ V{ 5.0 } V{ 0.0 } ] [ { 10.0 } { 2.0 } p/mod ] unit-test
+[ V{ 5.0 } V{ 0 } ] [ { 10.0 } { 2.0 } p/mod ] unit-test
 [ V{ 15/16 } V{ 0 } ] [ { 3/4 } { 4/5 } p/mod ] unit-test
 [ t ] [ { 0 1 } { 0 1 0 } p= ] unit-test
 [ f ] [ { 0 0 1 } { 0 1 0 } p= ] unit-test
diff --git a/extra/math/polynomials/polynomials.factor b/extra/math/polynomials/polynomials.factor
index 842c4c7f50..018b041afd 100644
--- a/extra/math/polynomials/polynomials.factor
+++ b/extra/math/polynomials/polynomials.factor
@@ -15,14 +15,14 @@ IN: math.polynomials
 : 2pad-right ( p p n -- p p ) 0 [ pad-right swap ] 2keep pad-right swap ;
 : pextend ( p p -- p p ) 2dup [ length ] bi@ max 2pad-right ;
 : pextend-left ( p p -- p p ) 2dup [ length ] bi@ max 2pad-left ;
-: unempty ( seq -- seq ) dup empty? [ drop { 0 } ] when ;
+: unempty ( seq -- seq ) [ { 0 } ] when-empty ;
 : 2unempty ( seq seq -- seq seq ) [ unempty ] bi@ ;
 
 PRIVATE>
 : p= ( p p -- ? ) pextend = ;
 
 : ptrim ( p -- p )
-    dup length 1 = [ [ zero? ] right-trim ] unless ;
+    dup length 1 = [ [ zero? ] trim-right ] unless ;
 
 : 2ptrim ( p p -- p p ) [ ptrim ] bi@ ;
 : p+ ( p p -- p ) pextend v+ ;
@@ -54,7 +54,7 @@ PRIVATE>
     #! divide the last two numbers in the sequences
     [ peek ] bi@ / ;
 
-: (p/mod)
+: (p/mod) ( p p -- p p )
     2dup /-last
     2dup , n*p swapd
     p- >vector
diff --git a/extra/math/primes/factors/factors.factor b/extra/math/primes/factors/factors.factor
index 2f70ab24b4..83d53c4215 100644
--- a/extra/math/primes/factors/factors.factor
+++ b/extra/math/primes/factors/factors.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2007 Samuel Tardieu.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel lazy-lists math math.primes namespaces sequences ;
+USING: arrays kernel lists math math.primes namespaces sequences ;
 IN: math.primes.factors
 
 <PRIVATE
@@ -10,14 +10,14 @@ IN: math.primes.factors
 
 : (count) ( n d -- n' )
     [ (factor) ] { } make
-    dup empty? [ drop ] [ [ first ] keep length 2array , ] if ;
+    [ [ first ] keep length 2array , ] unless-empty ;
 
 : (unique) ( n d -- n' )
     [ (factor) ] { } make
-    dup empty? [ drop ] [ first , ] if ;
+    [ first , ] unless-empty ;
 
 : (factors) ( quot list n -- )
-    dup 1 > [ swap uncons >r pick call r> swap (factors) ] [ 3drop ] if ;
+    dup 1 > [ swap uncons swap >r pick call r> swap (factors) ] [ 3drop ] if ;
 
 : (decompose) ( n quot -- seq )
     [ lprimes rot (factors) ] { } make ;
diff --git a/extra/math/primes/list/list.factor b/extra/math/primes/list/list.factor
index 7d1e2f20db..7560538028 100644
--- a/extra/math/primes/list/list.factor
+++ b/extra/math/primes/list/list.factor
@@ -6418,4 +6418,4 @@ IN: math.primes.list
 999431 999433 999437 999451 999491 999499 999521 999529 999541 999553 999563 999599
 999611 999613 999623 999631 999653 999667 999671 999683 999721 999727 999749 999763
 999769 999773 999809 999853 999863 999883 999907 999917 999931 999953 999959 999961
-999979 999983 } ;
+999979 999983 } ; inline
diff --git a/extra/math/primes/primes-tests.factor b/extra/math/primes/primes-tests.factor
index b1bcf79a49..186acc9b11 100644
--- a/extra/math/primes/primes-tests.factor
+++ b/extra/math/primes/primes-tests.factor
@@ -1,4 +1,4 @@
-USING: arrays math.primes tools.test lazy-lists ;
+USING: arrays math.primes tools.test lists.lazy ;
 
 { 1237 } [ 1234 next-prime ] unit-test
 { f t } [ 1234 prime? 1237 prime? ] unit-test
diff --git a/extra/math/primes/primes.factor b/extra/math/primes/primes.factor
index 2eeaca6c92..f3a515e72b 100644
--- a/extra/math/primes/primes.factor
+++ b/extra/math/primes/primes.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2007 Samuel Tardieu.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators kernel lazy-lists math math.functions math.miller-rabin
-       math.order math.primes.list math.ranges sequences sorting ;
+USING: combinators kernel lists.lazy math math.functions math.miller-rabin
+       math.order math.primes.list math.ranges sequences sorting
+       binary-search ;
 IN: math.primes
 
 <PRIVATE
@@ -13,14 +14,14 @@ PRIVATE>
 
 : next-prime ( n -- p )
   dup 999983 < [
-    primes-under-million [ [ <=> ] binsearch 1+ ] keep nth
+    primes-under-million [ natural-search drop 1+ ] keep nth
   ] [
     next-odd find-prime-miller-rabin
   ] if ; foldable
 
 : prime? ( n -- ? )
   dup 1000000 < [
-    dup primes-under-million [ <=> ] binsearch* =
+    dup primes-under-million natural-search nip =
   ] [
     miller-rabin
   ] if ; foldable
@@ -37,7 +38,7 @@ PRIVATE>
   {
     { [ dup 2 < ] [ drop { } ] }
     { [ dup 1000003 < ]
-      [ primes-under-million [ [ <=> ] binsearch 1+ 0 swap ] keep <slice> ] }
+      [ primes-under-million [ natural-search drop 1+ 0 swap ] keep <slice> ] }
     [ primes-under-million 1000003 lprimes-from
         rot [ <= ] curry lwhile list>array append ]
   } cond ; foldable
@@ -45,6 +46,6 @@ PRIVATE>
 : primes-between ( low high -- seq )
   primes-upto
   [ 1- next-prime ] dip
-  [ [ <=> ] binsearch ] keep [ length ] keep <slice> ; foldable
+  [ natural-search drop ] keep [ length ] keep <slice> ; foldable
 
 : coprime? ( a b -- ? ) gcd nip 1 = ; foldable
diff --git a/extra/math/quadratic/quadratic.factor b/extra/math/quadratic/quadratic.factor
index 2253582623..60929b92cb 100644
--- a/extra/math/quadratic/quadratic.factor
+++ b/extra/math/quadratic/quadratic.factor
@@ -3,13 +3,13 @@
 USING: kernel math math.functions ;
 IN: math.quadratic
 
-: monic ( c b a -- c' b' ) tuck / >r / r> ;
+: monic ( c b a -- c' b' ) tuck [ / ] 2bi@ ;
 
 : discriminant ( c b -- b d ) tuck sq 4 / swap - sqrt ;
 
-: critical ( b d -- -b/2 d ) >r -2 / r> ;
+: critical ( b d -- -b/2 d ) [ -2 / ] dip ;
 
-: +- ( x y -- x+y x-y ) [ + ] 2keep - ;
+: +- ( x y -- x+y x-y ) [ + ] [ - ] 2bi ;
 
 : quadratic ( c b a -- alpha beta )
     #! Solve a quadratic equation ax^2 + bx + c = 0
@@ -17,4 +17,4 @@ IN: math.quadratic
 
 : qeval ( x c b a -- y )
     #! Evaluate ax^2 + bx + c
-    >r pick * r> roll sq * + + ;
+    [ pick * ] dip roll sq * + + ;
diff --git a/extra/math/quaternions/quaternions-tests.factor b/extra/math/quaternions/quaternions-tests.factor
index b30a1bc271..a6d255e421 100644
--- a/extra/math/quaternions/quaternions-tests.factor
+++ b/extra/math/quaternions/quaternions-tests.factor
@@ -2,11 +2,11 @@ IN: math.quaternions.tests
 USING: tools.test math.quaternions kernel math.vectors
 math.constants ;
 
-[ 1 ] [ qi norm ] unit-test
-[ 1 ] [ qj norm ] unit-test
-[ 1 ] [ qk norm ] unit-test
-[ 1 ] [ q1 norm ] unit-test
-[ 0 ] [ q0 norm ] unit-test
+[ 1.0 ] [ qi norm ] unit-test
+[ 1.0 ] [ qj norm ] unit-test
+[ 1.0 ] [ qk norm ] unit-test
+[ 1.0 ] [ q1 norm ] unit-test
+[ 0.0 ] [ q0 norm ] unit-test
 [ t ] [ qi qj q* qk = ] unit-test
 [ t ] [ qj qk q* qi = ] unit-test
 [ t ] [ qk qi q* qj = ] unit-test
diff --git a/extra/math/quaternions/quaternions.factor b/extra/math/quaternions/quaternions.factor
index f121e4a0d1..3c450f1c05 100755
--- a/extra/math/quaternions/quaternions.factor
+++ b/extra/math/quaternions/quaternions.factor
@@ -24,7 +24,7 @@ PRIVATE>
 
 : q* ( u v -- u*v )
     #! Multiply quaternions.
-    [ q*a ] 2keep q*b 2array ;
+    [ q*a ] [ q*b ] 2bi 2array ;
 
 : qconjugate ( u -- u' )
     #! Quaternion conjugate.
@@ -74,5 +74,4 @@ PRIVATE>
     >r -0.5 * dup cos c>q swap sin r> n*v v- ;
 
 : euler ( phi theta psi -- q )
-    qk (euler) >r qj (euler) >r qi (euler) r> q* r> q* ;
-
+  [ qi (euler) ] [ qj (euler) ] [ qk (euler) ] tri* q* q* ;
diff --git a/extra/math/ranges/ranges-docs.factor b/extra/math/ranges/ranges-docs.factor
deleted file mode 100644
index a8783ee410..0000000000
--- a/extra/math/ranges/ranges-docs.factor
+++ /dev/null
@@ -1,21 +0,0 @@
-USING: help.syntax help.markup ;
-
-IN: math.ranges
-
-ARTICLE: "ranges" "Ranges"
-
-  "A " { $emphasis "range" } " is a virtual sequence with elements "
-  "ranging from a to b by step."
-
-  $nl
-
-  "Creating ranges:"
-
-  { $subsection <range> }
-  { $subsection [a,b]   }
-  { $subsection (a,b]   }
-  { $subsection [a,b)   }
-  { $subsection (a,b)   }
-  { $subsection [0,b]   }
-  { $subsection [1,b]   }
-  { $subsection [0,b)   } ;
\ No newline at end of file
diff --git a/extra/math/secant-method/authors.txt b/extra/math/secant-method/authors.txt
new file mode 100644
index 0000000000..137b1605da
--- /dev/null
+++ b/extra/math/secant-method/authors.txt
@@ -0,0 +1 @@
+Reginald Ford
\ No newline at end of file
diff --git a/extra/math/secant-method/secant-method.factor b/extra/math/secant-method/secant-method.factor
new file mode 100644
index 0000000000..e039b42bbd
--- /dev/null
+++ b/extra/math/secant-method/secant-method.factor
@@ -0,0 +1,14 @@
+! Copyright © 2008 Reginald Keith Ford II
+! Secant Method of approximating roots
+
+USING: kernel math math.function-tools math.points math.vectors ;
+IN: math.secant-method
+
+<PRIVATE
+: secant-solution ( x1 x2 function -- solution ) [ eval ] curry bi@ linear-solution ;
+: secant-step ( x1 x2 func -- x2 x3 func ) 2dup [ secant-solution ] 2dip swapd ;
+: secant-precision ( -- n ) 15 ;
+PRIVATE>
+: secant-method ( left right function -- x ) secant-precision [ secant-step ] times drop + 2 / ;
+! : close-enough? ( a b -- t/f ) - abs tiny-amount < ;
+! : secant-method2 ( left right function -- x ) 2over close-enough? [ drop average ] [ secant-step secant-method ] if  ;
\ No newline at end of file
diff --git a/extra/math/statistics/statistics-tests.factor b/extra/math/statistics/statistics-tests.factor
index 0884e1aed2..b6ff421956 100644
--- a/extra/math/statistics/statistics-tests.factor
+++ b/extra/math/statistics/statistics-tests.factor
@@ -5,7 +5,7 @@ IN: math.statistics.tests
 [ 3/2 ] [ { 1 2 } mean ] unit-test
 [ 0 ] [ { 0 0 0 } geometric-mean ] unit-test
 [ t ] [ { 2 2 2 2 } geometric-mean 2.0 .0001 ~ ] unit-test
-[ 1 ] [ { 1 1 1 } geometric-mean ] unit-test
+[ 1.0 ] [ { 1 1 1 } geometric-mean ] unit-test
 [ 1/3 ] [ { 1 1 1 } harmonic-mean ] unit-test
 
 [ 0 ] [ { 1 } range ] unit-test
@@ -14,12 +14,11 @@ IN: math.statistics.tests
 [ 5/2 ] [ { 1 2 3 4 } median ] unit-test
 
 [ 1 ] [ { 1 2 3 } var ] unit-test
-[ 1 ] [ { 1 2 3 } std ] unit-test
+[ 1.0 ] [ { 1 2 3 } std ] unit-test
 [ t ] [ { 1 2 3 4 } ste 0.6454972243679028 - .0001 < ] unit-test
 
 [ t ] [ { 23.2 33.4 22.5 66.3 44.5 } std 18.1906 - .0001 < ] unit-test
 
 [ 0 ] [ { 1 } var ] unit-test
-[ 0 ] [ { 1 } std ] unit-test
-[ 0 ] [ { 1 } ste ] unit-test
-
+[ 0.0 ] [ { 1 } std ] unit-test
+[ 0.0 ] [ { 1 } ste ] unit-test
diff --git a/extra/math/text/english/english.factor b/extra/math/text/english/english.factor
index cba8c28310..387be4d791 100755
--- a/extra/math/text/english/english.factor
+++ b/extra/math/text/english/english.factor
@@ -1,7 +1,8 @@
 ! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: combinators.lib kernel math math.functions math.parser namespaces
-    sequences splitting sequences.lib ;
+    sequences splitting grouping sequences.lib
+    combinators.short-circuit ;
 IN: math.text.english
 
 <PRIVATE
@@ -26,7 +27,7 @@ IN: math.text.english
 
 SYMBOL: and-needed?
 : set-conjunction ( seq -- )
-    first { [ dup 100 < ] [ dup 0 > ] } && and-needed? set drop ;
+    first { [ dup 100 < ] [ dup 0 > ] } 0&& and-needed? set drop ;
 
 : negative-text ( n -- str )
     0 < "Negative " "" ? ;
@@ -56,11 +57,9 @@ SYMBOL: and-needed?
 
 : text-with-scale ( index seq -- str )
     dupd nth 3digits>text swap
-    scale-numbers dup empty? [
-        drop
-    ] [
+    scale-numbers [
         " " swap 3append
-    ] if ;
+    ] unless-empty ;
 
 : append-with-conjunction ( str1 str2 -- newstr )
     over length zero? [
diff --git a/extra/math/vectors/vectors.factor b/extra/math/vectors/vectors.factor
deleted file mode 100755
index 9c9015d242..0000000000
--- a/extra/math/vectors/vectors.factor
+++ /dev/null
@@ -1,46 +0,0 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel sequences math math.functions hints
-float-arrays math.order ;
-IN: math.vectors
-
-: vneg ( u -- v ) [ neg ] map ;
-
-: v*n ( u n -- v ) [ * ] curry map ;
-: n*v ( n u -- v ) [ * ] with map ;
-: v/n ( u n -- v ) [ / ] curry map ;
-: n/v ( n u -- v ) [ / ] with map ;
-
-: v+   ( u v -- w ) [ + ] 2map ;
-: v-   ( u v -- w ) [ - ] 2map ;
-: [v-] ( u v -- w ) [ [-] ] 2map ;
-: v*   ( u v -- w ) [ * ] 2map ;
-: v/   ( u v -- w ) [ / ] 2map ;
-: vmax ( u v -- w ) [ max ] 2map ;
-: vmin ( u v -- w ) [ min ] 2map ;
-
-: v. ( u v -- x ) 0 [ * + ] 2reduce ;
-: norm-sq ( v -- x ) 0 [ absq + ] reduce ;
-: norm ( v -- x ) norm-sq sqrt ;
-: normalize ( u -- v ) dup norm v/n ;
-
-: set-axis ( u v axis -- w )
-    dup length [ >r zero? 2over ? r> swap nth ] 2map 2nip ;
-
-HINTS: vneg { float-array } { array } ;
-HINTS: norm-sq { float-array } { array } ;
-HINTS: norm { float-array } { array } ;
-HINTS: normalize { float-array } { array } ;
-
-HINTS: n*v { object float-array } { object array } ;
-HINTS: v*n { float-array object } { array object } ;
-HINTS: n/v { object float-array } { array } ;
-HINTS: v/n { float-array object } { array object } ;
-
-HINTS: v+ { float-array float-array } { array array } ;
-HINTS: v- { float-array float-array } { array array } ;
-HINTS: v* { float-array float-array } { array array } ;
-HINTS: v/ { float-array float-array } { array array } ;
-HINTS: vmax { float-array float-array } { array array } ;
-HINTS: vmin { float-array float-array } { array array } ;
-HINTS: v. { float-array float-array } { array array } ;
diff --git a/extra/maze/deploy.factor b/extra/maze/deploy.factor
index 321a30d5b2..0ba6f9abec 100755
--- a/extra/maze/deploy.factor
+++ b/extra/maze/deploy.factor
@@ -1,12 +1,15 @@
 USING: tools.deploy.config ;
-V{
-    { deploy-ui? t }
-    { deploy-io 1 }
+H{
     { deploy-reflection 1 }
-    { deploy-compiler? t }
     { deploy-math? t }
-    { deploy-word-props? f }
-    { deploy-c-types? f }
-    { "stop-after-last-window?" t }
+    { deploy-ui? t }
     { deploy-name "Maze" }
+    { deploy-compiler? t }
+    { deploy-threads? t }
+    { deploy-word-defs? f }
+    { deploy-c-types? f }
+    { deploy-io 1 }
+    { "stop-after-last-window?" t }
+    { deploy-random? t }
+    { deploy-word-props? f }
 }
diff --git a/extra/maze/maze.factor b/extra/maze/maze.factor
index dbf983be62..07f7b74265 100644
--- a/extra/maze/maze.factor
+++ b/extra/maze/maze.factor
@@ -1,7 +1,7 @@
 ! From http://www.ffconsultancy.com/ocaml/maze/index.html
 USING: sequences namespaces math math.vectors opengl opengl.gl
 arrays kernel random ui ui.gadgets ui.gadgets.canvas ui.render
-math.order ;
+math.order math.geometry.rect ;
 IN: maze
 
 : line-width 8 ;
@@ -49,10 +49,9 @@ SYMBOL: visited
     { 0 0 } dup vertex (draw-maze)
     glEnd ;
 
-TUPLE: maze ;
+TUPLE: maze < canvas ;
 
-: <maze> ( -- gadget )
-    <canvas> { set-delegate } maze construct ;
+: <maze> ( -- gadget ) maze new-canvas ;
 
 : n ( gadget -- n ) rect-dim first2 min line-width /i ;
 
diff --git a/extra/micros/authors.txt b/extra/micros/authors.txt
new file mode 100644
index 0000000000..0be42b2faa
--- /dev/null
+++ b/extra/micros/authors.txt
@@ -0,0 +1 @@
+Phil Dawes
diff --git a/extra/micros/backend/backend.factor b/extra/micros/backend/backend.factor
new file mode 100644
index 0000000000..905b6aa1ae
--- /dev/null
+++ b/extra/micros/backend/backend.factor
@@ -0,0 +1,4 @@
+IN: micros.backend
+USING: io.backend ;
+    
+HOOK: (micros) io-backend ( -- n )
diff --git a/extra/micros/micros-docs.factor b/extra/micros/micros-docs.factor
new file mode 100644
index 0000000000..98dcb9944e
--- /dev/null
+++ b/extra/micros/micros-docs.factor
@@ -0,0 +1,14 @@
+IN: micros
+USING: help.syntax help.markup kernel prettyprint sequences ;
+
+HELP: micros
+{ $values { "n" "an integer" } } 
+{ $description "Outputs the number of microseconds ellapsed since midnight January 1, 1970"
+} ;
+
+    
+HELP: micro-time
+{ $values { "quot" "a quot" }
+          { "n" "an integer" } }
+{ $description "executes the quotation and pushes the number of microseconds taken onto the stack"
+} ;
diff --git a/extra/micros/micros-tests.factor b/extra/micros/micros-tests.factor
new file mode 100644
index 0000000000..991ce04b26
--- /dev/null
+++ b/extra/micros/micros-tests.factor
@@ -0,0 +1,7 @@
+IN: micros.tests
+USING: micros tools.test math math.functions system kernel ;
+
+! a bit racy but I can't think of a better way to check this right now
+[ t ]
+[ millis 1000 / micros 1000000 / [ truncate ] bi@ = ] unit-test
+
diff --git a/extra/micros/micros.factor b/extra/micros/micros.factor
new file mode 100644
index 0000000000..554c838890
--- /dev/null
+++ b/extra/micros/micros.factor
@@ -0,0 +1,13 @@
+IN: micros
+USING: micros.backend system kernel combinators vocabs.loader math ;
+
+: micros ( -- n ) (micros) ; inline
+
+: micro-time ( quot -- n )
+  micros slip micros swap - ; inline
+
+{
+    { [ os unix? ] [ "micros.unix" ] }
+    { [ os windows? ] [ "micros.windows" ] }
+} cond require
+
diff --git a/extra/micros/summary.txt b/extra/micros/summary.txt
new file mode 100644
index 0000000000..c1bc9d6fce
--- /dev/null
+++ b/extra/micros/summary.txt
@@ -0,0 +1 @@
+Microsecond precision clock
diff --git a/extra/micros/unix/tags.txt b/extra/micros/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/micros/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/micros/unix/unix.factor b/extra/micros/unix/unix.factor
new file mode 100644
index 0000000000..c16d3623ac
--- /dev/null
+++ b/extra/micros/unix/unix.factor
@@ -0,0 +1,6 @@
+IN: micros.unix
+USING: micros.backend io.backend system alien.c-types kernel unix.time math ;
+
+M: unix (micros)
+  "timespec" <c-object> dup f gettimeofday drop
+  [ timespec-sec 1000000 * ] [ timespec-nsec ] bi + ;
diff --git a/extra/micros/windows/tags.txt b/extra/micros/windows/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/micros/windows/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/micros/windows/windows.factor b/extra/micros/windows/windows.factor
new file mode 100644
index 0000000000..b2beab720d
--- /dev/null
+++ b/extra/micros/windows/windows.factor
@@ -0,0 +1,7 @@
+IN: micros.windows
+USING: system kernel windows.time math math.functions micros.backend ;
+
+! 116444736000000000 is the windowstime epoch offset
+! since windowstime starts at 1600 and unix epoch is 1970
+M: windows (micros)
+  windows-time 116444736000000000 - 10 / truncate ;
\ No newline at end of file
diff --git a/extra/minneapolis-talk/minneapolis-talk.factor b/extra/minneapolis-talk/minneapolis-talk.factor
index 19cdcab2fb..25bad4061a 100755
--- a/extra/minneapolis-talk/minneapolis-talk.factor
+++ b/extra/minneapolis-talk/minneapolis-talk.factor
@@ -177,6 +177,6 @@ IN: minneapolis-talk
     { $slide "Questions?" }
 } ;
 
-: minneapolis-talk minneapolis-slides slides-window ;
+: minneapolis-talk ( -- ) minneapolis-slides slides-window ;
 
 MAIN: minneapolis-talk
diff --git a/extra/models/models-docs.factor b/extra/models/models-docs.factor
deleted file mode 100755
index 8cccb1c634..0000000000
--- a/extra/models/models-docs.factor
+++ /dev/null
@@ -1,307 +0,0 @@
-USING: help.syntax help.markup kernel math classes classes.tuple
-calendar ;
-IN: models
-
-HELP: model
-{ $class-description "A mutable cell holding a single value. When the value is changed, a sequence of connected objects are notified. Models have the following slots:"
-    { $list
-        { { $link model-value } " - the value of the model. Use " { $link set-model } " to change the value." }
-        { { $link model-connections } " - a sequence of objects implementing the " { $link model-changed } " generic word, to be notified when the model's value changes." }
-        { { $link model-dependencies } " - a sequence of models which should have this model added to their sequence of connections when activated." }
-        { { $link model-ref } " - a reference count tracking the number of models which depend on this one." }
-    }
-"Other classes may delegate to " { $link model } "."
-} ;
-
-HELP: <model>
-{ $values { "value" object } { "model" "a new " { $link model } } }
-{ $description "Creates a new model with an initial value." } ;
-
-HELP: add-dependency
-{ $values { "dep" model } { "model" model } }
-{ $description "Registers a dependency. When " { $snippet "model" } " is activated, it will be added to " { $snippet "dep" } "'s connections and notified when " { $snippet "dep" } " changes." }
-{ $notes "This word should not be called directly unless you are implementing your own model class." } ;
-
-{ add-dependency remove-dependency activate-model deactivate-model } related-words
-
-HELP: remove-dependency
-{ $values { "dep" model } { "model" model } }
-{ $description "Unregisters a dependency." }
-{ $notes "This word should not be called directly unless you are implementing your own model class." } ;
-
-HELP: model-activated
-{ $values { "model" model } }
-{ $contract "Called after a model has been activated." } ;
-
-{ model-activated activate-model deactivate-model } related-words
-
-HELP: activate-model
-{ $values { "model" model } }
-{ $description "Increments the reference count of the model. If it was previously zero, this model is added as a connection to all models registered as dependencies by " { $link add-dependency } "." }
-{ $warning "Calls to " { $link activate-model } " and " { $link deactivate-model } " should be balanced to keep the reference counting consistent, otherwise " { $link model-changed } " might be called at the wrong time or not at all." } ;
-
-HELP: deactivate-model
-{ $values { "model" model } }
-{ $description "Decrements the reference count of the model. If it reaches zero, this model is removed as a connection from all models registered as dependencies by " { $link add-dependency } "." }
-{ $warning "Calls to " { $link activate-model } " and " { $link deactivate-model } " should be balanced to keep the reference counting consistent, otherwise " { $link model-changed } " might be called at the wrong time or not at all." } ;
-
-HELP: model-changed
-{ $values { "model" model } { "observer" object } }
-{ $contract "Called to notify observers of a model that the model value has changed as a result of a call to " { $link set-model } ". Observers can be registered with " { $link add-connection } "." } ;
-
-{ add-connection remove-connection model-changed } related-words
-
-HELP: add-connection
-{ $values { "observer" object } { "model" model } }
-{ $contract "Registers an object interested in being notified of changes to the model's value. When the value is changed as a result of a call to " { $link set-model } ", the " { $link model-changed } " word is called on the observer." } ;
-
-HELP: remove-connection
-{ $values { "observer" object } { "model" model } }
-{ $contract "Unregisters an object no longer interested in being notified of changes to the model's value." } ;
-
-HELP: set-model
-{ $values { "value" object } { "model" model } }
-{ $description "Changes the value of a model and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
-
-{ set-model set-model-value change-model (change-model) } related-words
-
-HELP: set-model-value ( value model -- )
-{ $values { "value" object } { "model" model } }
-{ $description "Changes the value of a model without notifying any observers registered with " { $link add-connection } "." }
-{ $notes "There are very few reasons for user code to call this word. Instead, call " { $link set-model } ", which notifies observers." } ;
-
-HELP: change-model
-{ $values { "model" model } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } }
-{ $description "Applies the quotation to the current value of the model to yield a new value, then changes the value of the model to the new value, and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
-
-HELP: (change-model)
-{ $values { "model" model } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } }
-{ $description "Applies the quotation to the current value of the model to yield a new value, then changes the value of the model to the new value without notifying any observers registered with " { $link add-connection } "." }
-{ $notes "There are very few reasons for user code to call this word. Instead, call " { $link change-model } ", which notifies observers." } ;
-
-HELP: filter
-{ $class-description "Filter model values are computed by applying a quotation to the value of another model. Filters are automatically updated when the underlying model changes. Filters are constructed by " { $link <filter> } "." }
-{ $examples
-    "The following code displays a label showing the result of applying " { $link sq } " to the value 5:"
-    { $code
-        "USING: models ui.gadgets.labels ui.gadgets.panes ;"
-        "5 <model> [ sq ] <filter> [ number>string ] <filter>"
-        "<label-control> gadget."
-    }
-    "An exercise for the reader is to keep the original model around on the stack, and change its value to 6, observing that the label will immediately display 36."
-} ;
-
-HELP: <filter>
-{ $values { "model" model } { "quot" "a quotation with stack effect " { $snippet "( obj -- newobj )" } } { "filter" "a new " { $link filter } } }
-{ $description "Creates a new instance of " { $link filter } ". The value of the new filter model is computed by applying the quotation to the value." }
-{ $examples "See the example in the documentation for " { $link filter } "." } ;
-
-HELP: compose
-{ $class-description "Composed model values are computed by collecting the values from a sequence of underlying models into a new sequence. Composed models are automatically updated when underlying models change. Composed models are constructed by " { $link <compose> } "."
-$nl
-"A composed model whose children are all " { $link "models-range" } " conforms to the " { $link "range-model-protocol" } " and represents a point in n-dimensional space which is bounded by a rectangle." }
-{ $examples
-    "The following code displays a pair of sliders, and an updating label showing their current values:"
-    { $code
-        "USING: models ui.gadgets.labels ui.gadgets.sliders ui.gadgets.panes ;"
-        ": <funny-slider> <x-slider> 100 over set-slider-max ;"
-        "<funny-slider> <funny-slider> 2array"
-        "dup make-pile gadget."
-        "dup [ gadget-model ] map <compose> [ unparse ] <filter>"
-        "<label-control> gadget."
-    }
-} ;
-
-HELP: <compose>
-{ $values { "models" "a sequence of models" } { "compose" "a new " { $link compose } } }
-{ $description "Creates a new instance of " { $link compose } ". The value of the new compose model is obtained by mapping " { $link model-value } " over the given sequence of models." }
-{ $examples "See the example in the documentation for " { $link compose } "." } ;
-
-HELP: history
-{ $class-description "History models record a timeline of previous values on calls to " { $link add-history } ", and can travel back and forth on the timeline with " { $link go-back } " and " { $link go-forward } ". History models are constructed by " { $link <history> } "." } ;
-
-HELP: <history>
-{ $values { "value" object } { "history" "a new " { $link history } } }
-{ $description "Creates a new history model with an initial value." } ;
-
-{ <history> add-history go-back go-forward } related-words
-
-HELP: go-back
-{ $values { "history" history } }
-{ $description "Restores the previous value and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
-
-HELP: go-forward
-{ $values { "history" history } }
-{ $description "Restores the value set prior to the last call to " { $link go-back } " and calls " { $link model-changed } " on all observers registered with " { $link add-connection } "." } ;
-
-HELP: add-history
-{ $values { "history" history } }
-{ $description "Adds the current value to the history." } ;
-
-HELP: delay
-{ $class-description "Delay models have the same value as their underlying model, however the value only changes after a timer expires. If the underlying model's value changes again before the timer expires, the timer restarts. Delay models are constructed by " { $link <delay> } "." }
-{ $examples
-    "The following code displays a sliders and a label which is updated half a second after the slider stops changing:"
-    { $code
-        "USING: models ui.gadgets.labels ui.gadgets.sliders ui.gadgets.panes calendar ;"
-        ": <funny-slider>"
-        "    0 0 0 100 <range> <x-slider> 500 over set-slider-max ;"
-        "<funny-slider> dup gadget."
-        "gadget-model 1/2 seconds <delay> [ number>string ] <filter>"
-        "<label-control> gadget."
-    }
-} ;
-
-HELP: <delay>
-{ $values { "model" model } { "timeout" duration } { "delay" delay } }
-{ $description "Creates a new instance of " { $link delay } ". The timeout must elapse from the time the underlying model last changed to when the delay model value is changed and its connections are notified." }
-{ $examples "See the example in the documentation for " { $link delay } "." } ;
-
-HELP: range-value
-{ $values { "model" model } { "value" object } }
-{ $contract "Outputs the current value of a range model." } ;
-
-HELP: range-page-value
-{ $values { "model" model } { "value" object } }
-{ $contract "Outputs the page size of a range model." } ;
-
-HELP: range-min-value
-{ $values { "model" model } { "value" object } }
-{ $contract "Outputs the minimum value of a range model." } ;
-
-HELP: range-max-value
-{ $values { "model" model } { "value" object } }
-{ $contract "Outputs the maximum value of a range model." } ;
-
-HELP: range-max-value*
-{ $values { "model" model } { "value" object } }
-{ $contract "Outputs the slider position for a range model. Since the bottom of the slider cannot exceed the maximum value, this is equal to the maximum value minus the page size." } ;
-
-HELP: set-range-value
-{ $values { "value" object } { "model" model } }
-{ $description "Sets the current value of a range model." } 
-{ $side-effects "model" } ;
-
-HELP: set-range-page-value
-{ $values { "value" object } { "model" model } }
-{ $description "Sets the page size of a range model." } 
-{ $side-effects "model" } ;
-
-HELP: set-range-min-value
-{ $values { "value" object } { "model" model } }
-{ $description "Sets the minimum value of a range model." } 
-{ $side-effects "model" } ;
-
-HELP: set-range-max-value
-{ $values { "value" object } { "model" model } }
-{ $description "Sets the maximum value of a range model." }
-{ $side-effects "model" } ;
-
-HELP: range
-{ $class-description "Range models implement the " { $link "range-model-protocol" } " with real numbers as the minimum, current, maximum, and page size. Range models are created with " { $link <range> } "." }
-{ $notes { $link "ui.gadgets.sliders" } " use range models." } ;
-
-HELP: range-model
-{ $values { "range" range } { "model" model } }
-{ $description "Outputs a model holding a range model's current value." }
-{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
-
-HELP: range-min
-{ $values { "range" range } { "model" model } }
-{ $description "Outputs a model holding a range model's minimum value." }
-{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
-
-HELP: range-max
-{ $values { "range" range } { "model" model } }
-{ $description "Outputs a model holding a range model's maximum value." }
-{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
-
-HELP: range-page
-{ $values { "range" range } { "model" model } }
-{ $description "Outputs a model holding a range model's page size." }
-{ $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
-
-HELP: move-by
-{ $values { "amount" real } { "range" range } }
-{ $description "Adds a number to a range model's current value." }
-{ $side-effects "range" } ;
-
-HELP: move-by-page
-{ $values { "amount" real } { "range" range } }
-{ $description "Adds a multiple of the page size to a range model's current value." }
-{ $side-effects "range" } ;
-
-ARTICLE: "models" "Models"
-"The Factor UI provides basic support for dataflow programming via " { $emphasis "models" } " and " { $emphasis "controls" } ". A model is an observable value. Changing a model's value notifies other objects which depend on the model automatically, and models may depend on each other's values."
-$nl
-"Creating models:"
-{ $subsection <model> }
-"Adding and removing connections:"
-{ $subsection add-connection }
-{ $subsection remove-connection }
-"Generic word called on model connections when the model value changes:"
-{ $subsection model-changed }
-"When using models which are not associated with controls (or when unit testing controls), you must activate and deactivate models manually:"
-{ $subsection activate-model }
-{ $subsection deactivate-model }
-"Special types of models:"
-{ $subsection "models-filter" }
-{ $subsection "models-compose" }
-{ $subsection "models-history" }
-{ $subsection "models-delay" }
-{ $subsection "models-range" }
-{ $subsection "models-impl" } ;
-
-ARTICLE: "models-filter" "Filter models"
-"Filter model values are computed by applying a quotation to the value of another model."
-{ $subsection filter }
-{ $subsection <filter> } ;
-
-ARTICLE: "models-compose" "Composed models"
-"Composed model values are computed by collecting the values from a sequence of underlying models into a new sequence."
-{ $subsection compose }
-{ $subsection <compose> } ;
-
-ARTICLE: "models-history" "History models"
-"History models record previous values."
-{ $subsection history }
-{ $subsection <history> }
-"Recording history:"
-{ $subsection add-history }
-"Navigating the history:"
-{ $subsection go-back }
-{ $subsection go-forward } ;
-
-ARTICLE: "models-delay" "Delay models"
-"Delay models are used to implement delayed updating of gadgets in response to user input."
-{ $subsection delay }
-{ $subsection <delay> } ;
-
-ARTICLE: "models-range" "Range models"
-"Range models ensure their value is a real number within a fixed range."
-{ $subsection range }
-{ $subsection <range> }
-"Range models conform to a protocol for getting and setting the current value, as well as the endpoints of the range."
-{ $subsection "range-model-protocol" } ;
-
-ARTICLE: "range-model-protocol" "Range model protocol"
-"The range model protocol is implemented by the " { $link range } " and " { $link compose } " classes. User-defined models may implement it too."
-{ $subsection range-value          }
-{ $subsection range-page-value     } 
-{ $subsection range-min-value      } 
-{ $subsection range-max-value      } 
-{ $subsection range-max-value*     } 
-{ $subsection set-range-value      } 
-{ $subsection set-range-page-value } 
-{ $subsection set-range-min-value  } 
-{ $subsection set-range-max-value  } ;
-
-ARTICLE: "models-impl" "Implementing models"
-"New types of models can be defined, along the lines of " { $link filter } " and such."
-$nl
-"Models can execute hooks when activated:"
-{ $subsection model-activated }
-"Models can override requests to change their value, for example to perform validation:"
-{ $subsection set-model } ;
-
-ABOUT: "models"
diff --git a/extra/models/models-tests.factor b/extra/models/models-tests.factor
deleted file mode 100755
index 7964f8929e..0000000000
--- a/extra/models/models-tests.factor
+++ /dev/null
@@ -1,174 +0,0 @@
-IN: models.tests
-USING: arrays generic kernel math models namespaces sequences assocs
-tools.test ;
-
-TUPLE: model-tester hit? ;
-
-: <model-tester> model-tester new ;
-
-M: model-tester model-changed nip t swap set-model-tester-hit? ;
-
-[ T{ model-tester f t } ]
-[
-    T{ model-tester f f } 3 <model> 2dup add-connection
-    5 swap set-model
-] unit-test
-
-3 <model> "model-a" set
-4 <model> "model-b" set
-"model-a" get "model-b" get 2array <compose> "model-c" set
-
-"model-c" get activate-model
-[ { 3 4 } ] [ "model-c" get model-value  ] unit-test
-"model-c" get deactivate-model
-
-T{ model-tester f f } "tester" set
-
-[ T{ model-tester f t } { 6 4 } ]
-[
-    "tester" get "model-c" get add-connection
-    6 "model-a" get set-model
-    "tester" get
-    "model-c" get model-value
-] unit-test
-
-f <history> "history" set
-
-"history" get add-history
-
-[ t ] [ "history" get history-back empty? ] unit-test
-[ t ] [ "history" get history-forward empty? ] unit-test
-
-"history" get add-history
-3 "history" get set-model
-
-[ t ] [ "history" get history-back empty? ] unit-test
-[ t ] [ "history" get history-forward empty? ] unit-test
-
-"history" get add-history
-4 "history" get set-model
-
-[ f ] [ "history" get history-back empty? ] unit-test
-[ t ] [ "history" get history-forward empty? ] unit-test
-
-"history" get go-back
-
-[ 3 ] [ "history" get model-value ] unit-test
-
-[ t ] [ "history" get history-back empty? ] unit-test
-[ f ] [ "history" get history-forward empty? ] unit-test
-
-"history" get go-forward
-
-[ 4 ] [ "history" get model-value ] unit-test
-
-[ f ] [ "history" get history-back empty? ] unit-test
-[ t ] [ "history" get history-forward empty? ] unit-test
-
-! Test multiple filters
-3 <model> "x" set
-"x" get [ 2 * ] <filter> dup "z" set
-[ 1+ ] <filter> "y" set
-[ ] [ "y" get activate-model ] unit-test
-[ t ] [ "z" get "x" get model-connections memq? ] unit-test
-[ 7 ] [ "y" get model-value ] unit-test
-[ ] [ 4 "x" get set-model ] unit-test
-[ 9 ] [ "y" get model-value ] unit-test
-[ ] [ "y" get deactivate-model ] unit-test
-[ f ] [ "z" get "x" get model-connections memq? ] unit-test
-
-3 <model> "x" set
-"x" get [ sq ] <filter> "y" set
-
-4 "x" get set-model
-
-"y" get activate-model
-[ 16 ] [ "y" get model-value ] unit-test
-"y" get deactivate-model
-
-! Test compose
-[ ] [
-    1 <model> "a" set
-    2 <model> "b" set
-    "a" get "b" get 2array <compose> "c" set
-] unit-test
-
-[ ] [ "c" get activate-model ] unit-test
-
-[ { 1 2 } ] [ "c" get model-value ] unit-test
-
-[ ] [ 3 "b" get set-model ] unit-test
-
-[ { 1 3 } ] [ "c" get model-value ] unit-test
-
-[ ] [ { 4 5 } "c" get set-model ] unit-test
-
-[ { 4 5 } ] [ "c" get model-value ] unit-test
-
-[ ] [ "c" get deactivate-model ] unit-test
-
-! Test mapping
-[ ] [
-    [
-        1 <model> "one" set
-        2 <model> "two" set
-    ] H{ } make-assoc
-    <mapping> "m" set
-] unit-test
-
-[ ] [ "m" get activate-model ] unit-test
-
-[ H{ { "one" 1 } { "two" 2 } } ] [
-    "m" get model-value
-] unit-test
-
-[ ] [
-    H{ { "one" 3 } { "two" 4 } } 
-    "m" get set-model
-] unit-test
-
-[ H{ { "one" 3 } { "two" 4 } } ] [
-    "m" get model-value
-] unit-test
-
-[ H{ { "one" 5 } { "two" 4 } } ] [
-    5 "one" "m" get mapping-assoc at set-model
-    "m" get model-value
-] unit-test
-
-[ ] [ "m" get deactivate-model ] unit-test
-
-! Test <range> 
-: setup-range 0 0 0 255 <range> ;
-
-! clamp-value should not go past range ends
-[ 0   ] [ -10 setup-range clamp-value ] unit-test
-[ 255 ] [ 2000 setup-range clamp-value ] unit-test
-[ 14  ] [ 14 setup-range clamp-value ] unit-test
-
-! range min/max/page values should be correct
-[ 0 ] [ setup-range range-page-value ] unit-test
-[ 0 ] [ setup-range range-min-value ] unit-test
-[ 255 ] [ setup-range range-max-value ] unit-test
-
-! should be able to set the value within the range and get back
-[ 15 ] [ setup-range 15 over set-range-value range-value ] unit-test
-[ 0 ] [ setup-range -15 over set-range-value range-value ] unit-test
-[ 255 ] [ setup-range 4000 over set-range-value range-value ] unit-test
-
-! should be able to change the range min/max/page value
-[ 1 ] [ setup-range 1 over set-range-page-value range-page-value ] unit-test
-[ 50 ] [ setup-range 50 over set-range-min-value range-min-value ] unit-test
-[ 4000 ] [ setup-range 4000 over set-range-max-value range-max-value ] unit-test
-
-! should be able to move by positive and negative values
-[ 30 ] [ setup-range 30 over move-by range-value ] unit-test
-[ 0 ] [ setup-range 30 over move-by -30 over move-by range-value ] unit-test
-
-! should be able to move by a page of 10
-[ 10 ] [ 
-  setup-range 10 over set-range-page-value 
-  1 over move-by-page range-value 
-] unit-test
-
-
diff --git a/extra/models/models.factor b/extra/models/models.factor
deleted file mode 100755
index 7a0b4b532a..0000000000
--- a/extra/models/models.factor
+++ /dev/null
@@ -1,278 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: generic kernel math sequences arrays assocs alarms
-calendar math.order ;
-IN: models
-
-TUPLE: model < identity-tuple
-value connections dependencies ref locked? ;
-
-: <model> ( value -- model )
-    V{ } clone V{ } clone 0 f model boa ;
-
-M: model hashcode* drop model hashcode* ;
-
-: add-dependency ( dep model -- )
-    model-dependencies push ;
-
-: remove-dependency ( dep model -- )
-    model-dependencies delete ;
-
-DEFER: add-connection
-
-GENERIC: model-activated ( model -- )
-
-M: model model-activated drop ;
-
-: ref-model ( model -- n )
-    dup model-ref 1+ dup rot set-model-ref ;
-
-: unref-model ( model -- n )
-    dup model-ref 1- dup rot set-model-ref ;
-
-: activate-model ( model -- )
-    dup ref-model 1 = [
-        dup model-dependencies
-        [ dup activate-model dupd add-connection ] each
-        model-activated
-    ] [
-        drop
-    ] if ;
-
-DEFER: remove-connection
-
-: deactivate-model ( model -- )
-    dup unref-model zero? [
-        dup model-dependencies
-        [ dup deactivate-model remove-connection ] with each
-    ] [
-        drop
-    ] if ;
-
-GENERIC: model-changed ( model observer -- )
-
-: add-connection ( observer model -- )
-    dup model-connections empty? [ dup activate-model ] when
-    model-connections push ;
-
-: remove-connection ( observer model -- )
-    [ model-connections delete ] keep
-    dup model-connections empty? [ dup deactivate-model ] when
-    drop ;
-
-: with-locked-model ( model quot -- )
-    swap
-    t over set-model-locked?
-    slip
-    f swap set-model-locked? ; inline
-
-GENERIC: update-model ( model -- )
-
-M: model update-model drop ;
-
-: notify-connections ( model -- )
-    dup model-connections [ model-changed ] with each ;
-
-: set-model ( value model -- )
-    dup model-locked? [
-        2drop
-    ] [
-        dup [
-            [ set-model-value ] keep
-            [ update-model ] keep
-            notify-connections
-        ] with-locked-model
-    ] if ;
-
-: ((change-model)) ( model quot -- newvalue model )
-    over >r >r model-value r> call r> ; inline
-
-: change-model ( model quot -- )
-    ((change-model)) set-model ; inline
-
-: (change-model) ( model quot -- )
-    ((change-model)) set-model-value ; inline
-
-: construct-model ( value class -- instance )
-    >r <model> { set-delegate } r> construct ; inline
-
-TUPLE: filter model quot ;
-
-: <filter> ( model quot -- filter )
-    f filter construct-model
-    [ set-filter-quot ] keep
-    [ set-filter-model ] 2keep
-    [ add-dependency ] keep ;
-
-M: filter model-changed
-    swap model-value over filter-quot call
-    swap set-model ;
-
-M: filter model-activated dup filter-model swap model-changed ;
-
-TUPLE: compose ;
-
-: <compose> ( models -- compose )
-    f compose construct-model
-    swap clone over set-model-dependencies ;
-
-: composed-value >r model-dependencies r> map ; inline
-
-: set-composed-value >r model-dependencies r> 2each ; inline
-
-M: compose model-changed
-    nip
-    dup [ model-value ] composed-value swap delegate set-model ;
-
-M: compose model-activated dup model-changed ;
-
-M: compose update-model
-    dup model-value swap [ set-model ] set-composed-value ;
-
-TUPLE: mapping assoc ;
-
-: <mapping> ( models -- mapping )
-    f mapping construct-model
-    over values over set-model-dependencies
-    tuck set-mapping-assoc ;
-
-M: mapping model-changed
-    nip
-    dup mapping-assoc [ model-value ] assoc-map
-    swap delegate set-model ;
-
-M: mapping model-activated dup model-changed ;
-
-M: mapping update-model
-    dup model-value swap mapping-assoc
-    [ swapd at set-model ] curry assoc-each ;
-
-TUPLE: history back forward ;
-
-: reset-history ( history -- )
-    V{ } clone over set-history-back
-    V{ } clone swap set-history-forward ;
-
-: <history> ( value -- history )
-    history construct-model dup reset-history ;
-
-: (add-history)
-    swap model-value dup [ swap push ] [ 2drop ] if ;
-
-: go-back/forward ( history to from -- )
-    dup empty?
-    [ 3drop ]
-    [ >r dupd (add-history) r> pop swap set-model ] if ;
-
-: go-back ( history -- )
-    dup history-forward over history-back go-back/forward ;
-
-: go-forward ( history -- )
-    dup history-back over history-forward go-back/forward ;
-
-: add-history ( history -- )
-    dup history-forward delete-all
-    dup history-back (add-history) ;
-
-TUPLE: delay model timeout alarm ;
-
-: update-delay-model ( delay -- )
-    dup delay-model model-value swap set-model ;
-
-: <delay> ( model timeout -- delay )
-    f delay construct-model
-    [ set-delay-timeout ] keep
-    [ set-delay-model ] 2keep
-    [ add-dependency ] keep ;
-
-: cancel-delay ( delay -- )
-    delay-alarm [ cancel-alarm ] when* ;
-
-: start-delay ( delay -- )
-    dup [ f over set-delay-alarm update-delay-model ] curry
-    over delay-timeout later
-    swap set-delay-alarm ;
-
-M: delay model-changed nip dup cancel-delay start-delay ;
-
-M: delay model-activated update-delay-model ;
-
-GENERIC: range-value ( model -- value )
-GENERIC: range-page-value ( model -- value )
-GENERIC: range-min-value ( model -- value )
-GENERIC: range-max-value ( model -- value )
-GENERIC: range-max-value* ( model -- value )
-GENERIC: set-range-value ( value model -- )
-GENERIC: set-range-page-value ( value model -- )
-GENERIC: set-range-min-value ( value model -- )
-GENERIC: set-range-max-value ( value model -- )
-
-TUPLE: range ;
-
-: <range> ( value min max page -- range )
-    4array [ <model> ] map <compose>
-    { set-delegate } range construct ;
-
-: range-model ( range -- model ) model-dependencies first ;
-: range-page ( range -- model ) model-dependencies second ;
-: range-min ( range -- model ) model-dependencies third ;
-: range-max ( range -- model ) model-dependencies fourth ;
-
-: clamp-value ( value range -- newvalue )
-    [ range-min-value max ] keep
-    range-max-value* min ;
-
-M: range range-value
-    [ range-model model-value ] keep clamp-value ;
-
-M: range range-page-value range-page model-value ;
-
-M: range range-min-value range-min model-value ;
-
-M: range range-max-value range-max model-value ;
-
-M: range range-max-value*
-    dup range-max-value swap range-page-value [-] ;
-
-M: range set-range-value
-    [ clamp-value ] keep range-model set-model ;
-
-M: range set-range-page-value range-page set-model ;
-
-M: range set-range-min-value range-min set-model ;
-
-M: range set-range-max-value range-max set-model ;
-
-M: compose range-value
-    [ range-value ] composed-value ;
-
-M: compose range-page-value
-    [ range-page-value ] composed-value ;
-
-M: compose range-min-value
-    [ range-min-value ] composed-value ;
-
-M: compose range-max-value
-    [ range-max-value ] composed-value ;
-
-M: compose range-max-value*
-    [ range-max-value* ] composed-value ;
-
-M: compose set-range-value
-    [ clamp-value ] keep
-    [ set-range-value ] set-composed-value ;
-
-M: compose set-range-page-value
-    [ set-range-page-value ] set-composed-value ;
-
-M: compose set-range-min-value
-    [ set-range-min-value ] set-composed-value ;
-
-M: compose set-range-max-value
-    [ set-range-max-value ] set-composed-value ;
-
-: move-by ( amount range -- )
-    [ range-value + ] keep set-range-value ;
-
-: move-by-page ( amount range -- )
-    [ range-page-value * ] keep move-by ;
diff --git a/extra/monads/monads-tests.factor b/extra/monads/monads-tests.factor
index 52cdc47ac6..d0014b5abe 100644
--- a/extra/monads/monads-tests.factor
+++ b/extra/monads/monads-tests.factor
@@ -1,4 +1,4 @@
-USING: tools.test monads math kernel sequences lazy-lists promises ;
+USING: tools.test monads math kernel sequences lists promises ;
 IN: monads.tests
 
 [ 5 ] [ 1 identity-monad return [ 4 + ] fmap run-identity ] unit-test
diff --git a/extra/monads/monads.factor b/extra/monads/monads.factor
index 0f4138c985..e110cb38d3 100644
--- a/extra/monads/monads.factor
+++ b/extra/monads/monads.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays kernel sequences sequences.deep splitting
-accessors fry locals combinators namespaces lazy-lists
+accessors fry locals combinators namespaces lists lists.lazy
 shuffle ;
 IN: monads
 
@@ -14,7 +14,7 @@ GENERIC# fmap 1 ( functor quot -- functor' ) inline
 MIXIN: monad
 
 GENERIC: monad-of ( mvalue -- singleton )
-GENERIC: return ( string singleton -- mvalue )
+GENERIC: return ( value singleton -- mvalue )
 GENERIC: fail ( value singleton -- mvalue )
 GENERIC: >>= ( mvalue -- quot )
 
@@ -62,7 +62,7 @@ INSTANCE:  maybe-monad monad
 SINGLETON: nothing
 
 TUPLE: just value ;
-: just \ just boa ;
+: just ( value -- just ) \ just boa ;
 
 UNION: maybe just nothing ;
 INSTANCE: maybe monad
@@ -83,10 +83,10 @@ SINGLETON: either-monad
 INSTANCE:  either-monad monad
 
 TUPLE: left value ;
-: left \ left boa ;
+: left ( value -- left ) \ left boa ;
 
 TUPLE: right value ;
-: right \ right boa ;
+: right ( value -- right ) \ right boa ;
 
 UNION: either left right ;
 INSTANCE: either monad
@@ -124,14 +124,14 @@ M: list-monad fail   2drop nil ;
 
 M: list monad-of drop list-monad ;
 
-M: list >>= '[ , _ lmap lconcat ] ;
+M: list >>= '[ , _ lazy-map lconcat ] ;
 
 ! State
 SINGLETON: state-monad
 INSTANCE:  state-monad monad
 
 TUPLE: state quot ;
-: state \ state boa ;
+: state ( quot -- state ) \ state boa ;
 
 INSTANCE: state monad
 
@@ -140,7 +140,7 @@ M: state monad-of drop state-monad ;
 M: state-monad return drop '[ , 2array ] state ;
 M: state-monad fail   "Fail" throw ;
 
-: mcall quot>> call ;
+: mcall ( state -- ) quot>> call ;
 
 M: state >>= '[ , _ '[ , mcall first2 @ mcall ] state ] ;
 
@@ -149,14 +149,14 @@ M: state >>= '[ , _ '[ , mcall first2 @ mcall ] state ] ;
 
 : run-st ( state initial -- ) swap mcall second ;
 
-: return-st state-monad return ;
+: return-st ( value -- mvalue ) state-monad return ;
 
 ! Reader
 SINGLETON: reader-monad
 INSTANCE:  reader-monad monad
 
 TUPLE: reader quot ;
-: reader \ reader boa ;
+: reader ( quot -- reader ) \ reader boa ;
 INSTANCE: reader monad
 
 M: reader monad-of drop reader-monad ;
@@ -176,7 +176,7 @@ SINGLETON: writer-monad
 INSTANCE:  writer-monad monad
 
 TUPLE: writer value log ;
-: writer \ writer boa ;
+: writer ( value log -- writer ) \ writer boa ;
 
 M: writer monad-of drop writer-monad ;
 
diff --git a/extra/money/money-tests.factor b/extra/money/money-tests.factor
index b2ccdf93b7..78c168015f 100644
--- a/extra/money/money-tests.factor
+++ b/extra/money/money-tests.factor
@@ -1,4 +1,4 @@
-USING: money parser tools.test ;
+USING: money parser tools.test eval ;
 IN: money.tests
 
 [ -1/10 ] [ DECIMAL: -.1 ] unit-test
diff --git a/extra/money/money.factor b/extra/money/money.factor
index 1fd0a66555..fb743e15af 100644
--- a/extra/money/money.factor
+++ b/extra/money/money.factor
@@ -1,26 +1,28 @@
-USING: io kernel math math.functions math.parser parser
-namespaces sequences splitting combinators continuations
-sequences.lib ;
+USING: io kernel math math.functions math.parser parser lexer
+namespaces sequences splitting grouping combinators
+continuations sequences.lib ;
 IN: money
 
 : dollars/cents ( dollars -- dollars cents )
     100 * 100 /mod round ;
 
-: money. ( object -- )
-    dollars/cents
-    [
+: money>string ( object -- string )
+    dollars/cents [
         "$" %
         swap number>string
         <reversed> 3 group "," join <reversed> %
         "." % number>string 2 CHAR: 0 pad-left %
-    ] "" make print ;
+    ] "" make ;
+
+: money. ( object -- )
+    money>string print ;
 
 ERROR: not-a-decimal x ;
 
 : parse-decimal ( str -- ratio )
     "." split1
     >r dup "-" head? [ drop t "0" ] [ f swap ] if r>
-    [ dup empty? [ drop "0" ] when ] bi@
+    [ [ "0" ] when-empty ] bi@
     dup length
     >r [ dup string>number [ nip ] [ not-a-decimal ] if* ] bi@ r>
     10 swap ^ / + swap [ neg ] when ;
diff --git a/extra/morse/morse.factor b/extra/morse/morse.factor
index 9d335896be..4cce93a5a1 100644
--- a/extra/morse/morse.factor
+++ b/extra/morse/morse.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2007, 2008 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors assocs combinators hashtables kernel lazy-lists math namespaces openal parser-combinators promises sequences strings symbols synth synth.buffers unicode.case ;
+USING: accessors assocs combinators hashtables kernel lists math namespaces openal parser-combinators promises sequences strings symbols synth synth.buffers unicode.case ;
 IN: morse
 
 <PRIVATE
@@ -116,7 +116,7 @@ LAZY: 'morse-words' ( -- parser )
 PRIVATE>
 
 : morse> ( str -- str )
-    'morse-words' parse car parse-result-parsed [
+    'morse-words' parse car parsed>> [
         [ 
             >string morse>ch
         ] map >string
diff --git a/extra/morse/tags.txt b/extra/morse/tags.txt
index cb5fc203e1..33a9488b16 100644
--- a/extra/morse/tags.txt
+++ b/extra/morse/tags.txt
@@ -1 +1 @@
-demos
+example
diff --git a/extra/mortar/mortar.factor b/extra/mortar/mortar.factor
old mode 100644
new mode 100755
index 6173669ad0..1842b9a1e2
--- a/extra/mortar/mortar.factor
+++ b/extra/mortar/mortar.factor
@@ -1,6 +1,6 @@
 
-USING: kernel io parser words namespaces quotations arrays assocs sequences
-       splitting math shuffle ;
+USING: kernel io parser lexer words namespaces quotations arrays assocs sequences
+       splitting grouping math generalizations ;
 
 IN: mortar
 
@@ -48,18 +48,6 @@ if ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-USE: inference.transforms
-
-! : narray ( n -- array ) [ drop ] map reverse ;
-
-: [narray] ( n -- quot ) [ [ drop ] map reverse ] curry ;
-
-: narray ( n -- array ) [narray] call ;
-
-\ narray [ [narray] ] 1 define-transform
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
 : new ( class -- object )
 get dup >r class-slots length narray r> swap 2array ;
 
diff --git a/extra/msxml-to-csv/tags.txt b/extra/msxml-to-csv/tags.txt
index cb5fc203e1..8b13789179 100644
--- a/extra/msxml-to-csv/tags.txt
+++ b/extra/msxml-to-csv/tags.txt
@@ -1 +1 @@
-demos
+
diff --git a/extra/multi-methods/multi-methods.factor b/extra/multi-methods/multi-methods.factor
index 46ad6fc58e..a8025828f1 100755
--- a/extra/multi-methods/multi-methods.factor
+++ b/extra/multi-methods/multi-methods.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math sequences vectors classes classes.algebra
 combinators arrays words assocs parser namespaces definitions
-prettyprint prettyprint.backend quotations arrays.lib
+prettyprint prettyprint.backend quotations generalizations
 debugger io compiler.units kernel.private effects accessors
 hashtables sorting shuffle math.order sets ;
 IN: multi-methods
@@ -80,7 +80,7 @@ SYMBOL: total
 : topological-sort ( seq quot -- newseq )
     >r >vector [ dup empty? not ] r>
     [ dupd maximal-element >r over delete-nth r> ] curry
-    [ ] unfold nip ; inline
+    [ ] produce nip ; inline
 
 : classes< ( seq1 seq2 -- lt/eq/gt )
     [
@@ -112,10 +112,10 @@ SYMBOL: total
     dup length <reversed>
     [ picker 2array ] 2map
     [ drop object eq? not ] assoc-filter
-    dup empty? [ drop [ t ] ] [
+    [ [ t ] ] [
         [ (multi-predicate) ] { } assoc>map
         unclip [ swap [ f ] \ if 3array append [ ] like ] reduce
-    ] if ;
+    ] if-empty ;
 
 : argument-count ( methods -- n )
     keys 0 [ length max ] reduce ;
@@ -154,10 +154,10 @@ M: method-body stack-effect
     "multi-method-generic" word-prop stack-effect ;
 
 M: method-body crossref?
-    drop t ;
+    "forgotten" word-prop not ;
 
 : method-word-name ( specializer generic -- string )
-    [ word-name % "-" % unparse % ] "" make ;
+    [ name>> % "-" % unparse % ] "" make ;
 
 : method-word-props ( specializer generic -- assoc )
     [
@@ -168,7 +168,7 @@ M: method-body crossref?
 : <method> ( specializer generic -- word )
     [ method-word-props ] 2keep
     method-word-name f <word>
-    [ set-word-props ] keep ;
+    swap >>props ;
 
 : with-methods ( word quot -- )
     over >r >r "multi-methods" word-prop
@@ -187,7 +187,8 @@ M: method-body crossref?
         drop [ <method> dup ] 2keep reveal-method
     ] if ;
 
-: niceify-method [ dup \ f eq? [ drop f ] when ] map ;
+: niceify-method ( seq -- seq )
+    [ dup \ f eq? [ drop f ] when ] map ;
 
 M: no-method error.
     "Type check error" print
@@ -229,10 +230,10 @@ M: no-method error.
 : create-method-in ( specializer generic -- method )
     create-method dup save-location f set-word ;
 
-: CREATE-METHOD
+: CREATE-METHOD ( -- method )
     scan-word scan-object swap create-method-in ;
 
-: (METHOD:) CREATE-METHOD parse-definition ;
+: (METHOD:) ( -- method def ) CREATE-METHOD parse-definition ;
 
 : METHOD: (METHOD:) define ; parsing
 
diff --git a/extra/multi-methods/tests/canonicalize.factor b/extra/multi-methods/tests/canonicalize.factor
index d5baf4914c..991551c009 100644
--- a/extra/multi-methods/tests/canonicalize.factor
+++ b/extra/multi-methods/tests/canonicalize.factor
@@ -49,7 +49,7 @@ kernel strings ;
         { { object ppc object } "b" }
         { { string object windows } "c" }
     }
-    V{ cpu os }
+    { cpu os }
 ] [
     example-1 canonicalize-specializers
 ] unit-test
diff --git a/extra/namespaces/lib/lib-tests.factor b/extra/namespaces/lib/lib-tests.factor
index 20769e161c..d3f5a12faa 100755
--- a/extra/namespaces/lib/lib-tests.factor
+++ b/extra/namespaces/lib/lib-tests.factor
@@ -1,6 +1 @@
-IN: namespaces.lib.tests
-USING: namespaces.lib tools.test ;
 
-[ ] [ [ ] { } nmake ] unit-test
-
-[ { 1 } { 2 } ] [ [ 1 0, 2 1, ] { { } { } } nmake ] unit-test
diff --git a/extra/namespaces/lib/lib.factor b/extra/namespaces/lib/lib.factor
index 851f60d126..ae0887e45a 100755
--- a/extra/namespaces/lib/lib.factor
+++ b/extra/namespaces/lib/lib.factor
@@ -1,8 +1,6 @@
-
-! USING: kernel quotations namespaces sequences assocs.lib ;
-
 USING: kernel namespaces namespaces.private quotations sequences
-       assocs.lib math.parser math sequences.lib locals mirrors ;
+       assocs.lib math.parser math generalizations locals mirrors
+       macros ;
 
 IN: namespaces.lib
 
@@ -18,47 +16,6 @@ IN: namespaces.lib
 
 : set* ( val var -- ) namestack* set-assoc-stack ;
 
-SYMBOL: building-seq 
-: get-building-seq ( n -- seq )
-    building-seq get nth ;
-
-: n, get-building-seq push ;
-: n% get-building-seq push-all ;
-: n# >r number>string r> n% ;
-
-: 0, 0 n, ;
-: 0% 0 n% ;
-: 0# 0 n# ;
-: 1, 1 n, ;
-: 1% 1 n% ;
-: 1# 1 n# ;
-: 2, 2 n, ;
-: 2% 2 n% ;
-: 2# 2 n# ;
-: 3, 3 n, ;
-: 3% 3 n% ;
-: 3# 3 n# ;
-: 4, 4 n, ;
-: 4% 4 n% ;
-: 4# 4 n# ;
-
-MACRO:: nmake ( quot exemplars -- )
-    [let | n [ exemplars length ] |
-        [
-            [
-                exemplars
-                [ 0 swap new-resizable ] map
-                building-seq set
-
-                quot call
-
-                building-seq get
-                exemplars [ like ] 2map
-                n firstn
-            ] with-scope
-        ]
-    ] ;
-
 : make-object ( quot class -- object )
     new [ <mirror> swap bind ] keep ; inline
 
diff --git a/extra/nehe/2/2.factor b/extra/nehe/2/2.factor
index 1084a3303e..d9560c92f6 100644
--- a/extra/nehe/2/2.factor
+++ b/extra/nehe/2/2.factor
@@ -2,13 +2,13 @@ USING: arrays kernel math opengl opengl.gl opengl.glu ui
 ui.gadgets ui.render ;
 IN: nehe.2
 
-TUPLE: nehe2-gadget ;
+TUPLE: nehe2-gadget < gadget ;
 
 : width 256 ;
 : height 256 ;
 
 : <nehe2-gadget> (  -- gadget )
-  nehe2-gadget construct-gadget ;
+  nehe2-gadget new-gadget ;
 
 M: nehe2-gadget pref-dim* ( gadget -- dim )
   drop width height 2array ;
diff --git a/extra/nehe/3/3.factor b/extra/nehe/3/3.factor
index fff58380d6..8a2149e370 100644
--- a/extra/nehe/3/3.factor
+++ b/extra/nehe/3/3.factor
@@ -2,13 +2,13 @@ USING: arrays kernel math opengl opengl.gl opengl.glu ui
 ui.gadgets ui.render ;
 IN: nehe.3
 
-TUPLE: nehe3-gadget ;
+TUPLE: nehe3-gadget < gadget ;
 
 : width 256 ;
 : height 256 ;
 
 : <nehe3-gadget> (  -- gadget )
-  nehe3-gadget construct-gadget ;
+  nehe3-gadget new-gadget ;
 
 M: nehe3-gadget pref-dim* ( gadget -- dim )
   drop width height 2array ;
diff --git a/extra/nehe/4/4.factor b/extra/nehe/4/4.factor
index b87b4a2308..0bbd4d593f 100644
--- a/extra/nehe/4/4.factor
+++ b/extra/nehe/4/4.factor
@@ -1,17 +1,17 @@
 USING: arrays kernel math opengl opengl.gl opengl.glu ui
-ui.gadgets ui.render threads ;
+ui.gadgets ui.render threads accessors ;
 IN: nehe.4
 
-TUPLE: nehe4-gadget rtri rquad thread quit? ;
+TUPLE: nehe4-gadget < gadget rtri rquad thread quit? ;
 
 : width 256 ;
 : height 256 ;
 : redraw-interval 10 ;
 
 : <nehe4-gadget> (  -- gadget )
-  nehe4-gadget construct-gadget
-  0.0 over set-nehe4-gadget-rtri
-  0.0 over set-nehe4-gadget-rquad ;
+  nehe4-gadget new-gadget
+    0.0 >>rtri
+    0.0 >>rquad ;
 
 M: nehe4-gadget pref-dim* ( gadget -- dim )
   drop width height 2array ;
@@ -31,7 +31,7 @@ M: nehe4-gadget draw-gadget* ( gadget -- )
   GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
   glLoadIdentity
   -1.5 0.0 -6.0 glTranslatef
-  dup nehe4-gadget-rtri 0.0 1.0 0.0 glRotatef
+  dup rtri>> 0.0 1.0 0.0 glRotatef
 
   GL_TRIANGLES [
     1.0 0.0 0.0 glColor3f
@@ -45,7 +45,7 @@ M: nehe4-gadget draw-gadget* ( gadget -- )
   glLoadIdentity
 
   1.5 0.0 -6.0 glTranslatef
-  dup nehe4-gadget-rquad 1.0 0.0 0.0 glRotatef
+  dup rquad>> 1.0 0.0 0.0 glRotatef
   0.5 0.5 1.0 glColor3f
   GL_QUADS [
     -1.0 1.0 0.0 glVertex3f
@@ -53,22 +53,22 @@ M: nehe4-gadget draw-gadget* ( gadget -- )
     1.0 -1.0 0.0 glVertex3f
     -1.0 -1.0 0.0 glVertex3f
   ] do-state
-  dup nehe4-gadget-rtri 0.2 + over set-nehe4-gadget-rtri
-  dup nehe4-gadget-rquad 0.15 - swap set-nehe4-gadget-rquad ;
+  [ 0.2 + ] change-rtri
+  [ 0.15 - ] change-rquad drop ;
 
 : nehe4-update-thread ( gadget -- )
-  dup nehe4-gadget-quit? [ drop ] [
+  dup quit?>> [ drop ] [
     redraw-interval sleep
     dup relayout-1
     nehe4-update-thread
   ] if ;
 
 M: nehe4-gadget graft* ( gadget -- )
-  [ f swap set-nehe4-gadget-quit? ] keep
+  f >>quit?
   [ nehe4-update-thread ] in-thread drop ;
 
 M: nehe4-gadget ungraft* ( gadget -- )
-  t swap set-nehe4-gadget-quit? ;
+  t >>quit? drop ;
 
 : run4 ( -- )
   <nehe4-gadget> "NeHe Tutorial 4" open-window ;
diff --git a/extra/nehe/5/5.factor b/extra/nehe/5/5.factor
index 31a7d059ae..1a416c9d95 100755
--- a/extra/nehe/5/5.factor
+++ b/extra/nehe/5/5.factor
@@ -1,16 +1,16 @@
 USING: arrays kernel math opengl opengl.gl opengl.glu ui
-ui.gadgets ui.render threads ;
+ui.gadgets ui.render threads accessors ;
 IN: nehe.5
 
-TUPLE: nehe5-gadget rtri rquad thread quit? ;
+TUPLE: nehe5-gadget < gadget rtri rquad thread quit? ;
 : width 256 ;
 : height 256 ;
 : redraw-interval 10 ;
 
 : <nehe5-gadget> (  -- gadget )
-  nehe5-gadget construct-gadget
-  0.0 over set-nehe5-gadget-rtri
-  0.0 over set-nehe5-gadget-rquad ;
+  nehe5-gadget new-gadget
+    0.0 >>rtri
+    0.0 >>rquad ;
 
 M: nehe5-gadget pref-dim* ( gadget -- dim )
   drop width height 2array ;
@@ -30,7 +30,7 @@ M: nehe5-gadget draw-gadget* ( gadget -- )
   GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
   glLoadIdentity
   -1.5 0.0 -6.0 glTranslatef
-  dup nehe5-gadget-rtri 0.0 1.0 0.0 glRotatef
+  dup rtri>> 0.0 1.0 0.0 glRotatef
 
   GL_TRIANGLES [
     1.0 0.0 0.0 glColor3f
@@ -65,7 +65,7 @@ M: nehe5-gadget draw-gadget* ( gadget -- )
   glLoadIdentity
 
   1.5 0.0 -7.0 glTranslatef
-  dup nehe5-gadget-rquad 1.0 0.0 0.0 glRotatef
+  dup rquad>> 1.0 0.0 0.0 glRotatef
   GL_QUADS [
     0.0 1.0 0.0 glColor3f
     1.0 1.0 -1.0 glVertex3f
@@ -103,11 +103,11 @@ M: nehe5-gadget draw-gadget* ( gadget -- )
     1.0 -1.0 1.0 glVertex3f
     1.0 -1.0 -1.0 glVertex3f
   ] do-state 
-  dup nehe5-gadget-rtri 0.2 + over set-nehe5-gadget-rtri
-  dup nehe5-gadget-rquad 0.15 - swap set-nehe5-gadget-rquad ;
+  [ 0.2 + ] change-rtri
+  [ 0.15 - ] change-rquad drop ;
 
 : nehe5-update-thread ( gadget -- )  
-  dup nehe5-gadget-quit? [
+  dup quit?>> [
     drop
   ] [
     redraw-interval sleep 
@@ -116,11 +116,11 @@ M: nehe5-gadget draw-gadget* ( gadget -- )
   ] if ;
 
 M: nehe5-gadget graft* ( gadget -- )
- [ f swap set-nehe5-gadget-quit? ] keep
- [ nehe5-update-thread ] in-thread drop ;
+  f >>quit?
+  [ nehe5-update-thread ] in-thread drop ;
 
 M: nehe5-gadget ungraft* ( gadget -- )
- t swap set-nehe5-gadget-quit? ;
+  t >>quit? drop ;
 
 
 : run5 ( -- )
diff --git a/extra/nehe/nehe.factor b/extra/nehe/nehe.factor
index 51eb129b34..a96c024683 100644
--- a/extra/nehe/nehe.factor
+++ b/extra/nehe/nehe.factor
@@ -2,14 +2,14 @@ USING: ui.gadgets.buttons ui.gadgets.packs ui.gadgets ui
 nehe.2 nehe.3 nehe.4 nehe.5 kernel ;
 IN: nehe
 
-: nehe-window
+: nehe-window ( -- )
     [
-        [
-            "Nehe 2" [ drop run2 ] <bevel-button> gadget,
-            "Nehe 3" [ drop run3 ] <bevel-button> gadget,
-            "Nehe 4" [ drop run4 ] <bevel-button> gadget,
-            "Nehe 5" [ drop run5 ] <bevel-button> gadget,
-        ] make-filled-pile "Nehe examples" open-window
+        <filled-pile>
+            "Nehe 2" [ drop run2 ] <bevel-button> add-gadget
+            "Nehe 3" [ drop run3 ] <bevel-button> add-gadget
+            "Nehe 4" [ drop run4 ] <bevel-button> add-gadget
+            "Nehe 5" [ drop run5 ] <bevel-button> add-gadget
+        "Nehe examples" open-window
     ] with-ui ;
 
 MAIN: nehe-window
diff --git a/extra/newfx/newfx.factor b/extra/newfx/newfx.factor
index e017dc4b2b..0da7a9c9fb 100644
--- a/extra/newfx/newfx.factor
+++ b/extra/newfx/newfx.factor
@@ -1,11 +1,12 @@
 
-USING: kernel sequences assocs qualified circular ;
+USING: kernel sequences assocs qualified circular sets fry sequences.lib ;
 
 USING: math multi-methods ;
 
 QUALIFIED: sequences
 QUALIFIED: assocs
 QUALIFIED: circular
+QUALIFIED: sets
 
 IN: newfx
 
@@ -74,10 +75,6 @@ METHOD: mutate-as { sequence object  number }      rot set-nth ;
 METHOD: at-mutate { number object  sequence } swapd set-nth ;
 METHOD: as-mutate { object  number sequence }       set-nth ;
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-
-
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 ! assoc
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -158,6 +155,11 @@ METHOD: as-mutate { object object assoc }       set-at ;
 : prefix-on ( elt seq -- seq ) swap prefix ;
 : suffix-on ( elt seq -- seq ) swap suffix ;
 
+: suffix!      ( seq elt -- seq ) over sequences:push ;
+: suffix-on!   ( elt seq -- seq ) tuck sequences:push ;
+: suffixed!    ( seq elt --     ) swap sequences:push ;
+: suffixed-on! ( elt seq --     )      sequences:push ;
+
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : subseq ( seq from to -- subseq ) rot sequences:subseq ;
@@ -175,18 +177,72 @@ METHOD: as-mutate { object object assoc }       set-at ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: 1st 0 at ;
-: 2nd 1 at ;
-: 3rd 2 at ;
-: 4th 3 at ;
-: 5th 4 at ;
-: 6th 5 at ;
-: 7th 6 at ;
-: 8th 7 at ;
-: 9th 8 at ;
+: 1st ( seq -- obj ) 0 swap nth ;
+: 2nd ( seq -- obj ) 1 swap nth ;
+: 3rd ( seq -- obj ) 2 swap nth ;
+: 4th ( seq -- obj ) 3 swap nth ;
+: 5th ( seq -- obj ) 4 swap nth ;
+: 6th ( seq -- obj ) 5 swap nth ;
+: 7th ( seq -- obj ) 6 swap nth ;
+: 8th ( seq -- obj ) 7 swap nth ;
+: 9th ( seq -- obj ) 8 swap nth ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 ! A note about the 'mutate' qualifier. Other words also technically mutate
 ! their primary object. However, the 'mutate' qualifier is supposed to
-! indicate that this is the main objective of the word, as a side effect.
\ No newline at end of file
+! indicate that this is the main objective of the word, as a side effect.
+
+: adjoin      ( seq elt -- seq ) over sets:adjoin ;
+: adjoin-on   ( elt seq -- seq ) tuck sets:adjoin ;
+: adjoined    ( set elt --     ) swap sets:adjoin ;
+: adjoined-on ( elt set --     )      sets:adjoin ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: start ( seq subseq -- i ) swap sequences:start ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: pluck         ( seq i   -- seq ) cut-slice rest-slice append ;
+: pluck-from    ( i   seq -- seq ) swap pluck ;
+: pluck!        ( seq i   -- seq ) over delete-nth ;
+: pluck-from!   ( i   seq -- seq ) tuck delete-nth ;
+: plucked!      ( seq i   --     ) swap delete-nth ;
+: plucked-from! ( i   seq --     )      delete-nth ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: snip          ( seq a b -- seq ) >r over r> [ head ] [ tail ] 2bi* append ;
+: snip-this     ( a b seq -- seq ) -rot snip ;
+: snip!         ( seq a b -- seq )      pick delete-slice ;
+: snip-this!    ( a b seq -- seq ) -rot pick delete-slice ;
+: snipped!      ( seq a b --     )       rot delete-slice ;
+: snipped-from! ( a b seq --     )           delete-slice ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: invert-index ( seq i -- seq i ) >r dup length 1 - r> - ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: append!      ( a b -- ab )      over sequences:push-all ;
+: append-to!   ( b a -- ab ) swap over sequences:push-all ;
+: appended!    ( a b --    ) swap      sequences:push-all ;
+: appended-to! ( b a --    )           sequences:push-all ;
+
+: prepend!   ( a b -- ba  ) over append 0 pick copy ;
+: prepended! ( a b --     ) over append 0 rot  copy ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: insert ( seq i obj -- seq ) >r cut r> prefix append ;
+
+: splice ( seq i seq -- seq ) >r cut r> prepend append ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: purge ( seq quot -- seq ) [ not ] compose filter ;
+
+: purge! ( seq quot -- seq )
+  dupd '[ swap @ [ pluck! ] [ drop ] if ] each-index ;
diff --git a/extra/numbers-game/numbers-game.factor b/extra/numbers-game/numbers-game.factor
index 9336aa6b5b..ccfe958fe0 100644
--- a/extra/numbers-game/numbers-game.factor
+++ b/extra/numbers-game/numbers-game.factor
@@ -3,12 +3,12 @@ IN: numbers-game
 
 : read-number ( -- n ) readln string>number ;
 
-: guess-banner
+: guess-banner ( -- )
     "I'm thinking of a number between 0 and 100." print ;
-: guess-prompt "Enter your guess: " write ;
-: too-high "Too high" print ;
-: too-low "Too low" print ;
-: correct "Correct - you win!" print ;
+: guess-prompt ( -- ) "Enter your guess: " write ;
+: too-high ( -- ) "Too high" print ;
+: too-low ( -- ) "Too low" print ;
+: correct ( -- ) "Correct - you win!" print ;
 
 : inexact-guess ( actual guess -- )
      < [ too-high ] [ too-low ] if ;
@@ -22,6 +22,6 @@ IN: numbers-game
     dup guess-prompt read-number judge-guess
     [ numbers-game-loop ] [ drop ] if ;
 
-: numbers-game number-to-guess numbers-game-loop ;
+: numbers-game ( -- ) number-to-guess numbers-game-loop ;
 
 MAIN: numbers-game
diff --git a/extra/obj/alist/alist.factor b/extra/obj/alist/alist.factor
new file mode 100644
index 0000000000..a4e8ebb7c8
--- /dev/null
+++ b/extra/obj/alist/alist.factor
@@ -0,0 +1,11 @@
+
+USING: arrays sequences ;
+
+IN: obj.alist
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+PREDICATE: alist < sequence [ pair? ] all? ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/obj/examples/todo/todo.factor b/extra/obj/examples/todo/todo.factor
new file mode 100644
index 0000000000..3d545479e9
--- /dev/null
+++ b/extra/obj/examples/todo/todo.factor
@@ -0,0 +1,83 @@
+
+USING: kernel sequences sets combinators.cleave
+       obj obj.view obj.util obj.print ;
+
+IN: obj.examples.todo
+
+SYM: person types adjoin
+SYM: todo   types adjoin
+
+SYM: owners properties adjoin
+SYM: eta    properties adjoin
+SYM: notes  properties adjoin
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: slava { type person } define-object
+SYM: doug  { type person } define-object
+SYM: ed    { type person } define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: compiler-bugs
+  {
+    type todo
+    owners { slava }
+    notes  {
+             "Investitage FEP on Terrorist"
+             "Problem with cutler in VirtualBox?"
+           }
+  }
+define-object
+
+SYM: remove-old-accessors-from-core
+  {
+    type todo
+    owners { slava }
+  }
+define-object
+
+SYM: move-db-and-web-framework-to-basis
+  {
+   type todo
+   owners { slava }
+  }
+define-object
+
+SYM: remove-old-accessors-from-basis
+  {
+    type todo
+    owners { doug ed }
+  }
+define-object
+
+SYM: blas-on-bsd
+  {
+    type todo
+    owners { slava doug }
+  }
+define-object
+
+SYM: multi-methods-backend
+  {
+    type todo
+    owners { slava }
+  }
+define-object
+
+SYM: update-core-for-multi-methods { type todo owners { slava } } define-object
+SYM: update-basis-for-multi-methods { type todo } define-object
+SYM: update-extra-for-multi-methods { type todo } define-object
+
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: todo-list ( -- )
+  objects [ type -> todo = ] filter
+    [ { [ self -> ] [ owners -> ] [ eta -> ] } 1arr ]
+  map
+  { "ITEM" "OWNERS" "ETA" } prefix
+  print-table ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/obj/misc/misc.factor b/extra/obj/misc/misc.factor
new file mode 100644
index 0000000000..06b3056ea0
--- /dev/null
+++ b/extra/obj/misc/misc.factor
@@ -0,0 +1,8 @@
+
+USING: kernel namespaces sequences assocs sequences.deep obj ;
+
+IN: obj.misc
+
+: related ( obj -- seq )
+  objects dupd remove [ get values flatten member? ] with filter ;
+
diff --git a/extra/obj/obj.factor b/extra/obj/obj.factor
new file mode 100644
index 0000000000..a4af627926
--- /dev/null
+++ b/extra/obj/obj.factor
@@ -0,0 +1,45 @@
+
+USING: kernel words namespaces arrays vectors hashtables
+       sequences assocs sets grouping
+       combinators.conditional
+       combinators.short-circuit
+       obj.util obj.alist ;
+
+IN: obj
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: properties ( -- properties ) V{ } ;
+
+SYM: self  properties adjoin
+SYM: type  properties adjoin
+SYM: title properties adjoin
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: types ( -- types ) V{ } ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: >obj ( val -- obj ) [ symbol? ] [ get ] [ ] 1if ;
+
+: -> ( obj pro -- val ) swap >obj at ;
+
+PREDICATE: obj < alist { [ self -> ] [ type -> ] } 1&& ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: objects ( -- objects ) V{ } ;
+
+: define-object ( symbol table -- )
+  2 group >vector
+  self rot 2array prefix
+  dup dup self -> set-global
+  self -> objects adjoin ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+PREDICATE: ptr < symbol get obj? ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/obj/papers/papers.factor b/extra/obj/papers/papers.factor
new file mode 100644
index 0000000000..46683ad997
--- /dev/null
+++ b/extra/obj/papers/papers.factor
@@ -0,0 +1,178 @@
+
+USING: sets obj obj.util obj.view ;
+
+IN: obj.papers
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: title        properties adjoin
+SYM: abstract     properties adjoin
+SYM: authors      properties adjoin
+SYM: file         properties adjoin
+SYM: date         properties adjoin
+SYM: participants properties adjoin
+SYM: description  properties adjoin
+
+SYM: chapter      properties adjoin
+SYM: section      properties adjoin
+SYM: paragraph    properties adjoin
+SYM: content      properties adjoin
+
+SYM: subjects     properties adjoin
+SYM: source       properties adjoin
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: paper  types adjoin
+SYM: person types adjoin
+SYM: event  types adjoin
+
+SYM: excerpt types adjoin
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: bay-wei-chang       { type person } define-object
+SYM: chuck-moore         { type person } define-object
+SYM: craig-chambers      { type person } define-object
+SYM: david-ungar         { type person } define-object
+SYM: frank-g-halasz      { type person } define-object
+SYM: gerald-jay-sussman  { type person } define-object
+SYM: guy-lewis-steele-jr { type person } define-object
+SYM: randall-b-smith     { type person } define-object
+SYM: randall-h-trigg     { type person } define-object
+SYM: robert-adams        { type person } define-object
+SYM: russell-noftsker    { type person } define-object
+SYM: thomas-p-moran      { type person } define-object
+SYM: urs-holzle          { type person } define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: programming-as-an-experience
+  {
+    type     paper
+    title    "Programming as an Experience: The Inspiration for Self"
+    abstract "The Self system attempts to integrate intellectual and non-intellectual aspects of programming to create an overall experience. The language semantics, user interface, and implementation each help create this integrated experience. The language semantics embed the programmer in a uniform world of simple ob jects that can be modified without appealing to definitions of abstractions. In a similar way, the graphical interface puts the user into a uniform world of tangible objects that can be directly manipulated and changed without switching modes. The implementation strives to support the world-of-objects illusion by minimiz ing perceptible pauses and by providing true source-level semantics without sac rificing performance. As a side benefit, it encourages factoring. Although we see areas that fall short of the vision, on the whole, the language, interface, and im plementation conspire so that the Self programmer lives and acts in a consistent and malleable world of objects."
+    authors  { randall-b-smith david-ungar }
+    date     1995
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: self-the-power-of-simplicity
+  {
+    type paper
+    title "Self: The Power of Simplicity"
+    abstract "Self is an object-oriented language for exploratory programming based on a small number of simple and concrete ideas: prototypes, slots, and behavior. Prototypes combine inheritance and instantiation to provide a framework that is simpler and more flexible than most object-oriented languages. Slots unite variables and procedures into a single construct. This permits the inheritance hierarchy to take over the function of lexical scoping in conventional languages. Finally, because Self does not distinguish state from behavior, it narrows the gaps between ordinary objects, procedures, and closures. Self's simplicity and expressiveness offer new insights into object-oriented computation."
+    authors { randall-b-smith david-ungar }
+    date 1987
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: parents-are-shared-parts
+  {
+    type paper
+    title "Parents are Shared Parts: Inheritance and Encapsulation in Self"
+    abstract "The design of inheritance and encapsulation in Self, an object-oriented language based on prototypes, results from understanding that inheritance allows parents to be shared parts of their children. The programmer resolves ambiguities arising from multiple inheritance by prioritizing an object's parents. Unifying unordered and ordered multiple inheritance supports differential programming of abstractions and methods, combination of unrelated abstractions, unequal combination of abstractions, and mixins. In Self, a private slot may be accessed if the sending method is a shared part of the receiver, allowing privileged communication between related objects. Thus, classless Self enjoys the benefits of class-based encapsulation."
+    authors { craig-chambers david-ungar bay-wei-chang urs-holzle }
+    date 1991
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: organizing-programs-without-classes
+  {
+    type paper
+    title "Organizing Programs Without Classes"
+    abstract "All organizational functions carried out by classes can be accomplished in a simple and natural way by object inheritance in classless languages, with no need for special mechanisms. A single model--dividing types into prototypes and traits--supports sharing of behavior and extending or replacing representations. A natural extension, dynamic object inheritance, can model behavioral modes. Object inheritance can also be used to provide structured name spaces for well-known objects. Classless languages can even express 'class-based' encapsulation. These stylized uses of object inheritance become instantly recognizable idioms, and extend the repertory of organizing principles to cover a wider range of programs."
+    authors { david-ungar craig-chambers bay-wei-chang urs-holzle }
+    date 1991
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: scheme-an-interpreter-for-extended-lambda-calculus
+  {
+    type paper
+    title "Scheme: An Interpreter for Extended Lambda Calculus"
+    abstract "Inspired by ACTORS [Greif and Hewitt] [Smith and Hewitt], we have implemented an interpreter for a LISP-like language, SCHEME, based on the lambda calculus [Church], but extended for side effects, multiprocessing, and process synchronization. The purpose of this implementation is tutorial. We wish to: (1) alleviate the confusion caused by Micro-PLANNER, CONNIVER, etc. by clarifying the embedding of non-recursive control structures in a recursive host language like LISP. (2) explain how to use these control structures, independent of such issues as pattern matching and data base manipulation. (3) have a simple concrete experimental domain for certain issues of programming semantics and style."
+    authors { gerald-jay-sussman guy-lewis-steele-jr }
+    date 1975
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: symbolics-is-founded
+  {
+    type         event
+    participants { russell-noftsker robert-adams }
+    date         1980
+  }
+define-object
+
+SYM: symbolics-funding-from-gi
+  {
+    type        event
+    description "Symbolics receives $500,000 from General Instruments"
+    date        1982
+  }
+define-object
+
+SYM: symbolics-files-for-bankruptcy
+  {
+    type event
+    date "1993-01-28"
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: the-evolution-of-forth
+  {
+    type paper
+    title "The Evolution of Forth"
+    authors { chuck-moore "elizabeth-d-rather" "donald-r-colburn" }
+    abstract
+    "Forth is unique among programming languages in that its development and proliferation has been a grass-roots effort unsupported by any major corporate or academic sponsors. Originally conceived and developed by a single individual, its later development has progressed under two significant influences: professional programmers who developed tools to solve application problems and then commercialized them, and the interests of hobbyists concerned with free distribution of Forth. These influences have produced a language markedly different from traditional programming languages."
+    date 1993
+  }
+define-object
+
+SYM: first-complete-stand-alone-forth
+  {
+    type event
+    participants { chuck-moore }
+    date 1971
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: notecards-in-a-nutshell
+  {
+    type paper
+    authors { frank-g-halasz thomas-p-moran randall-h-trigg }
+    date 1987
+  }
+define-object
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+SYM: the-evolution-of-forth-excerpt-2-1-1
+  {
+    type excerpt
+    source the-evolution-of-forth
+    chapter 2
+    section 1
+    paragraph 1
+    content
+    "Moore developed the first complete, stand-alone implementation of Forth in 1971 for the 11-meter radio telescope operated by the National Radio Astronomy Observatory (NRAO) at Kitt Peak, Arizona. This system ran on two early minicomputers (a 16 KB DDP-116 and a 32 KB H316) joined by a serial link. Both a multiprogrammed system and a multiprocessor system (in that both computers shared responsibility for controlling the telescope and its scientific instruments), it was responsible for pointing and tracking the telescope, collecting data and recording it on magnetic tape, and supporting an interactive graphics terminal on which an astronomer could analyze previously recorded data. The multiprogrammed nature of the system allowed all these functions to be performed concurrently, without timing conflicts or other interference."
+    subjects { chuck-moore first-complete-stand-alone-forth }
+  }
+define-object
+
diff --git a/extra/obj/print/print.factor b/extra/obj/print/print.factor
new file mode 100644
index 0000000000..000e161387
--- /dev/null
+++ b/extra/obj/print/print.factor
@@ -0,0 +1,37 @@
+
+USING: kernel arrays strings sequences assocs io io.styles prettyprint colors
+       combinators.conditional ;
+
+IN: obj.print
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: write-wrapped ( string -- ) H{ { wrap-margin 500 } } [ write ] with-nesting ;
+
+! : print-elt ( val -- )
+!   {
+!     { [ string? ] [ write-wrapped ] }
+!     { [ array?  ] [ [ . ] each    ] }
+!     { [ drop t  ] [ . ] }
+!   }
+!   1cond ;
+
+USING: accessors vocabs help.markup ;
+
+: print-elt ( val -- )
+  {
+    { [ vocab?  ] [ [ name>> ] [ ] bi write-object ] }
+    { [ string? ] [ write-wrapped ] }
+    { [ array?  ] [ [ . ] each    ] }
+    { [ drop t  ] [ . ] }
+  }
+  1cond ;
+
+: print-grid ( grid -- )
+  H{ { table-gap { 10 10 } } { table-border T{ rgba f 0 0 0 1 } } }
+  [ [ [ [ [ print-elt ] with-cell ] each ] with-row ] each ] tabular-output ;
+
+: print-table ( assoc -- ) >alist print-grid ;
+
+: print-seq ( seq -- ) [ 1array ] map print-grid ;
+
diff --git a/extra/obj/util/util.factor b/extra/obj/util/util.factor
new file mode 100644
index 0000000000..086fcd1835
--- /dev/null
+++ b/extra/obj/util/util.factor
@@ -0,0 +1,8 @@
+
+USING: kernel parser words ;
+
+IN: obj.util
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: SYM: CREATE-WORD dup define-symbol parsed ; parsing
\ No newline at end of file
diff --git a/extra/obj/view/view.factor b/extra/obj/view/view.factor
new file mode 100644
index 0000000000..cf5ca33745
--- /dev/null
+++ b/extra/obj/view/view.factor
@@ -0,0 +1,52 @@
+
+USING: kernel words namespaces arrays sequences prettyprint
+       help.topics help.markup bake combinators.cleave
+       obj obj.misc obj.print ;
+
+IN: obj.view
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: $tab ( seq -- ) first print-table ;
+: $obj ( seq -- ) first print-table ;
+: $seq ( seq -- ) first print-seq   ;
+: $ptr ( seq -- ) first get print-table ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+PREDICATE: obj-type < symbol types member? ;
+
+M: obj-type article-title ( type -- title ) unparse ;
+
+M: obj-type article-content ( type -- content )
+   objects [ type -> = ] with filter
+   { $seq , } bake ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: ptr article-title ( ptr -- title ) [ title -> ] [ unparse ] bi or ;
+
+M: ptr article-content ( ptr -- content )
+   {
+     [ get     { $obj , } bake ]
+     [ drop { $heading "Related\n" } ]
+     [ related { $seq , } bake ]
+   }
+   1arr ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+PREDICATE: obj-list < word \ objects = ;
+
+M: obj-list article-title ( objects -- title ) drop "Objects" ;
+
+! M: obj-list article-content ( objects -- title )
+!    execute
+!    [ [ type -> ] [ ] bi 2array ] map
+!    { $tab , } bake ;
+
+M: obj-list article-content ( objects -- title )
+   drop
+   objects
+   [ [ type -> ] [ ] bi 2array ] map
+   { $tab , } bake ;
\ No newline at end of file
diff --git a/extra/odbc/odbc.factor b/extra/odbc/odbc.factor
index 0bcd639bc1..faa6c48354 100644
--- a/extra/odbc/odbc.factor
+++ b/extra/odbc/odbc.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2007 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel alien alien.strings alien.syntax combinators
-alien.c-types strings sequences namespaces words math threads
-io.encodings.ascii ;
+USING: accessors kernel alien alien.strings alien.syntax
+combinators alien.c-types strings sequences namespaces words
+math threads io.encodings.ascii ;
 IN: odbc
 
 << "odbc" "odbc32.dll" "stdcall" add-library >>
@@ -213,7 +213,7 @@ C: <column> column
   ] if ;
 
 : dereference-type-pointer ( byte-array column -- object )
-  column-type {
+  type>> {
     { SQL-CHAR [ ascii alien>string ] }
     { SQL-VARCHAR [ ascii alien>string ] }
     { SQL-LONGVARCHAR [ ascii alien>string ] }
@@ -227,7 +227,7 @@ C: <column> column
     { SQL-DOUBLE [ *double ] }
     { SQL-TINYINT [ *char  ] }
     { SQL-BIGINT [ *longlong ] }
-    [ nip [ "Unknown SQL Type: " % word-name % ] "" make ]
+    [ nip [ "Unknown SQL Type: " % name>> % ] "" make ]
   } case ;
 
 TUPLE: field value column ;
@@ -235,7 +235,7 @@ TUPLE: field value column ;
 C: <field> field
 
 : odbc-get-field ( statement column -- field )
-  dup column? [ dupd odbc-describe-column ] unless dup >r column-number
+  dup column? [ dupd odbc-describe-column ] unless dup >r number>>
   SQL-C-DEFAULT
   8192 CHAR: \space <string> ascii string>alien dup >r
   8192
@@ -244,15 +244,15 @@ C: <field> field
   ] [
     r> drop r> [
       "SQLGetData Failed for Column: " %
-      dup column-name %
-      " of type: " % dup column-type word-name %
+      dup name>> %
+      " of type: " % dup type>> name>> %
     ] "" make swap <field>
   ] if ;
 
 : odbc-get-row-fields ( statement -- seq )
   [
     dup odbc-number-of-columns [
-      1+ odbc-get-field field-value ,
+      1+ odbc-get-field value>> ,
     ] with each
   ] { } make ;
 
diff --git a/extra/openal/macosx/tags.txt b/extra/openal/macosx/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/openal/macosx/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/openal/openal.factor b/extra/openal/openal.factor
index 38d61a8823..2a8959b4a0 100644
--- a/extra/openal/openal.factor
+++ b/extra/openal/openal.factor
@@ -245,7 +245,7 @@ SYMBOL: init
     f init set-global
   ] unless ;
 
-: <uint-array> "ALuint" <c-array> ;
+: <uint-array> ( n -- byte-array ) "ALuint" <c-array> ;
 
 : gen-sources ( size -- seq )
   dup <uint-array> 2dup alGenSources swap c-uint-array> ;
diff --git a/extra/opengl/capabilities/capabilities.factor b/extra/opengl/capabilities/capabilities.factor
index d658235cf6..806935d5c9 100755
--- a/extra/opengl/capabilities/capabilities.factor
+++ b/extra/opengl/capabilities/capabilities.factor
@@ -5,9 +5,9 @@ continuations math.parser math arrays sets math.order ;
 IN: opengl.capabilities
 
 : (require-gl) ( thing require-quot make-error-quot -- )
-    >r dupd call
-    [ r> 2drop ]
-    [ r> " " make throw ]
+    -rot dupd call
+    [ 2drop ]
+    [ swap " " make throw ]
     if ; inline
 
 : gl-extensions ( -- seq )
diff --git a/extra/opengl/demo-support/demo-support.factor b/extra/opengl/demo-support/demo-support.factor
index 88531a70bc..2bf2abae95 100755
--- a/extra/opengl/demo-support/demo-support.factor
+++ b/extra/opengl/demo-support/demo-support.factor
@@ -1,4 +1,4 @@
-USING: arrays combinators.lib kernel math math.functions
+USING: arrays kernel math math.functions
 math.order math.vectors namespaces opengl opengl.gl sequences ui
 ui.gadgets ui.gestures ui.render accessors ;
 IN: opengl.demo-support
@@ -9,11 +9,13 @@ IN: opengl.demo-support
 
 SYMBOL: last-drag-loc
 
-TUPLE: demo-gadget yaw pitch distance ;
+TUPLE: demo-gadget < gadget yaw pitch distance ;
 
-: <demo-gadget> ( yaw pitch distance -- gadget )
-    demo-gadget construct-gadget 
-    [ { (>>yaw) (>>pitch) (>>distance) } set-slots ] keep ;
+: new-demo-gadget ( yaw pitch distance class -- gadget )
+    new-gadget
+        swap >>distance
+        swap >>pitch
+        swap >>yaw ;
 
 GENERIC: far-plane ( gadget -- z )
 GENERIC: near-plane ( gadget -- z )
@@ -29,19 +31,19 @@ M: demo-gadget distance-step ( gadget -- dz )
 : fov-ratio ( gadget -- fov ) dim>> dup first2 min v/n ;
 
 : yaw-demo-gadget ( yaw gadget -- )
-    [ [ demo-gadget-yaw + ] keep set-demo-gadget-yaw ] keep relayout-1 ;
+    [ + ] with change-yaw relayout-1 ;
 
 : pitch-demo-gadget ( pitch gadget -- )
-    [ [ demo-gadget-pitch + ] keep set-demo-gadget-pitch ] keep relayout-1 ;
+    [ + ] with change-pitch relayout-1 ;
 
 : zoom-demo-gadget ( distance gadget -- )
-    [ [ demo-gadget-distance + ] keep set-demo-gadget-distance ] keep relayout-1 ;
+    [ + ] with change-distance relayout-1 ;
 
 M: demo-gadget pref-dim* ( gadget -- dim )
     drop { 640 480 } ;
 
 : -+ ( x -- -x x )
-    dup neg swap ;
+    [ neg ] keep ;
 
 : demo-gadget-frustum ( gadget -- -x x -y y near far )
     [ near-plane ] [ far-plane ] [ fov-ratio ] tri [
diff --git a/extra/opengl/framebuffers/framebuffer-docs.factor b/extra/opengl/framebuffers/framebuffers-docs.factor
similarity index 100%
rename from extra/opengl/framebuffers/framebuffer-docs.factor
rename to extra/opengl/framebuffers/framebuffers-docs.factor
diff --git a/extra/opengl/gadgets/gadgets-tests.factor b/extra/opengl/gadgets/gadgets-tests.factor
new file mode 100644
index 0000000000..499ec9730a
--- /dev/null
+++ b/extra/opengl/gadgets/gadgets-tests.factor
@@ -0,0 +1,4 @@
+IN: opengl.gadgets.tests
+USING: tools.test opengl.gadgets ;
+
+\ render* must-infer
diff --git a/extra/opengl/gadgets/gadgets.factor b/extra/opengl/gadgets/gadgets.factor
index 1a15283048..9e670c04ab 100644
--- a/extra/opengl/gadgets/gadgets.factor
+++ b/extra/opengl/gadgets/gadgets.factor
@@ -2,10 +2,57 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: locals math.functions math namespaces
 opengl.gl accessors kernel opengl ui.gadgets
+fry assocs
 destructors sequences ui.render colors ;
 IN: opengl.gadgets
 
-TUPLE: texture-gadget bytes format dim tex ;
+TUPLE: texture-gadget ;
+
+GENERIC: render* ( gadget -- texture dims )
+GENERIC: cache-key* ( gadget -- key )
+
+M: texture-gadget cache-key* ;
+
+SYMBOL: textures
+SYMBOL: refcounts
+
+: init-cache ( symbol -- )
+    dup get [ drop ] [ H{ } clone swap set-global ] if ;
+
+textures init-cache
+refcounts init-cache
+
+: refcount-change ( gadget quot -- )
+    >r cache-key* refcounts get
+    [ [ 0 ] unless* ] r> compose change-at ;
+
+TUPLE: cache-entry tex dims ;
+C: <entry> cache-entry
+
+: make-entry ( gadget -- entry )
+    dup render* <entry>
+    [ swap cache-key* textures get set-at ] keep ;
+
+: get-entry ( gadget -- {texture,dims} )
+    dup cache-key* textures get at
+    [ nip ] [ make-entry ] if* ;
+
+: get-dims ( gadget -- dims )
+    get-entry dims>> ;
+
+: get-texture ( gadget -- texture )
+    get-entry tex>> ;
+
+: release-texture ( gadget -- )
+    cache-key* textures get delete-at*
+    [ tex>> delete-texture ] [ drop ] if ;
+
+M: texture-gadget graft* ( gadget -- ) [ 1+ ] refcount-change ;
+
+M: texture-gadget ungraft* ( gadget -- )
+    dup [ 1- ] refcount-change
+    dup cache-key* refcounts get at
+    zero? [ release-texture ] [ drop ] if ;
 
 : 2^-ceil ( x -- y )
     dup 2 < [ 2 * ] [ 1- log2 1+ 2^ ] if ; foldable flushable
@@ -13,29 +60,29 @@ TUPLE: texture-gadget bytes format dim tex ;
 : 2^-bounds ( dim -- dim' )
     [ 2^-ceil ] map ; foldable flushable
 
-: <texture-gadget> ( bytes format dim -- gadget )
-    texture-gadget construct-gadget
-        swap >>dim
-        swap >>format
-        swap >>bytes ;
-
-:: render ( gadget -- )
+:: (render-bytes) ( dims bytes format texture -- )
     GL_ENABLE_BIT [
         GL_TEXTURE_2D glEnable
-        GL_TEXTURE_2D gadget tex>> glBindTexture
+        GL_TEXTURE_2D texture glBindTexture
         GL_TEXTURE_2D
         0
         GL_RGBA
-        gadget dim>> 2^-bounds first2
+        dims 2^-bounds first2
         0
-        gadget format>>
+        format
         GL_UNSIGNED_BYTE
-        gadget bytes>>
+        bytes
         glTexImage2D
         init-texture
         GL_TEXTURE_2D 0 glBindTexture
     ] do-attribs ;
 
+: render-bytes ( dims bytes format -- texture )
+    gen-texture [ (render-bytes) ] keep ;
+
+: render-bytes* ( dims bytes format -- texture dims )
+    pick >r render-bytes r> ;
+
 :: four-corners ( dim -- )
     [let* | w [ dim first ]
             h [ dim second ]
@@ -54,19 +101,12 @@ M: texture-gadget draw-gadget* ( gadget -- )
             white gl-color
             1.0 -1.0 glPixelZoom
             GL_TEXTURE_2D glEnable
-            GL_TEXTURE_2D over tex>> glBindTexture
+            GL_TEXTURE_2D over get-texture glBindTexture
             GL_QUADS [
-                dim>> four-corners
+                get-dims four-corners
             ] do-state
             GL_TEXTURE_2D 0 glBindTexture
         ] do-attribs
     ] with-translation ;
 
-M: texture-gadget graft* ( gadget -- )
-    gen-texture >>tex [ render ]
-    [ f >>bytes f >>format drop ] bi ;
-
-M: texture-gadget ungraft* ( gadget -- )
-    tex>> delete-texture ;
-
-M: texture-gadget pref-dim* ( gadget -- dim ) dim>> ;
+M: texture-gadget pref-dim* ( gadget -- dim ) get-dims ;
diff --git a/extra/opengl/gl/windows/tags.txt b/extra/opengl/gl/windows/tags.txt
deleted file mode 100644
index 8e1a55995e..0000000000
--- a/extra/opengl/gl/windows/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-windows
diff --git a/extra/opengl/shaders/shaders-docs.factor b/extra/opengl/shaders/shaders-docs.factor
index 93251627f4..1a10071ddf 100644
--- a/extra/opengl/shaders/shaders-docs.factor
+++ b/extra/opengl/shaders/shaders-docs.factor
@@ -95,18 +95,7 @@ HELP: delete-gl-program
 { $description "Deletes the program object, invalidating it and releasing any resources allocated for it by the OpenGL implementation. Any attached " { $link gl-shader } "s are also deleted.\n\nIf the shader objects should be preserved, they should each be detached using " { $link detach-gl-program-shader } ". The program object can then be destroyed alone using " { $link delete-gl-program-only } "." } ;
 
 HELP: with-gl-program
-{ $values { "program" "A " { $link gl-program } " object" } { "uniforms" "An " { $link assoc } " between uniform parameter names and quotations with effect " { $snippet "( uniform-location -- )" } } { "quot" "A quotation" } }
-{ $description "Enables " { $snippet "program" } " for all OpenGL calls made in the dynamic extent of " { $snippet "quot" } ". The fixed-function pipeline is restored at the end of " { $snippet "quot" } ". Before calling " { $snippet "quot" } ", calls " { $link glGetUniformLocation } " on each key of " { $snippet "uniforms" } " to get the address of the uniform parameter, which is then placed on top of the stack as the associated quotation is called.\n\nExample:" }
-{ $code <"
-! From bunny.cel-shaded
-: (draw-cel-shaded-bunny) ( geom program -- )
-    {
-        { "light_direction" [ 1.0 -1.0 1.0 glUniform3f ] }
-        { "color"           [ 0.6 0.5 0.5 1.0 glUniform4f ] }
-        { "ambient"         [ 0.2 0.2 0.2 0.2 glUniform4f ] }
-        { "diffuse"         [ 0.8 0.8 0.8 0.8 glUniform4f ] }
-        { "shininess"       [ 100.0 glUniform1f ] }
-    } [ bunny-geom ] with-gl-program ;
-"> } ;
+{ $values { "program" "A " { $link gl-program } " object" } { "quot" "A quotation with stack effect " { $snippet "( program -- )" } } }
+{ $description "Enables " { $snippet "program" } " for all OpenGL calls made in the dynamic extent of " { $snippet "quot" } ". " { $snippet "program" } " is left on the top of the stack when " { $snippet "quot" } " is called. The fixed-function pipeline is restored at the end of " { $snippet "quot" } "." } ;
 
 ABOUT: "gl-utilities"
diff --git a/extra/opengl/shaders/shaders.factor b/extra/opengl/shaders/shaders.factor
index c05e180c11..d52e55417f 100755
--- a/extra/opengl/shaders/shaders.factor
+++ b/extra/opengl/shaders/shaders.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel opengl.gl alien.c-types continuations namespaces
 assocs alien alien.strings libc opengl math sequences combinators
-combinators.lib macros arrays io.encodings.ascii ;
+combinators.lib macros arrays io.encodings.ascii fry ;
 IN: opengl.shaders
 
 : with-gl-shader-source-ptr ( string quot -- )
@@ -107,22 +107,8 @@ PREDICATE: fragment-shader < gl-shader (fragment-shader?) ;
         2dup detach-gl-program-shader delete-gl-shader
     ] each delete-gl-program-only ;
 
-: (with-gl-program) ( program quot -- )
-    swap glUseProgram [ 0 glUseProgram ] [ ] cleanup ; inline
-
-: (with-gl-program-uniforms) ( uniforms -- quot )
-    [ [ swap , \ glGetUniformLocation , % ] [ ] make ]
-    { } assoc>map ;
-: (make-with-gl-program) ( uniforms quot -- q )
-    [
-        \ dup ,
-        [ swap (with-gl-program-uniforms) , \ cleave , % ]
-        [ ] make ,
-        \ (with-gl-program) ,
-    ] [ ] make ;
-
-MACRO: with-gl-program ( uniforms quot -- )
-    (make-with-gl-program) ;
+: with-gl-program ( program quot -- )
+    over glUseProgram [ 0 glUseProgram ] [ ] cleanup ; inline
 
 PREDICATE: gl-program < integer (gl-program?) ;
 
diff --git a/extra/openssl/test/errors.txt b/extra/openssl/test/errors.txt
deleted file mode 100644
index e965047ad7..0000000000
--- a/extra/openssl/test/errors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Hello
diff --git a/extra/optimizer/debugger/debugger.factor b/extra/optimizer/debugger/debugger.factor
deleted file mode 100755
index fa35534439..0000000000
--- a/extra/optimizer/debugger/debugger.factor
+++ /dev/null
@@ -1,183 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: classes inference inference.dataflow io kernel
-kernel.private math.parser namespaces optimizer prettyprint
-prettyprint.backend sequences words arrays match macros
-assocs sequences.private optimizer.specializers generic
-combinators sorting math quotations ;
-IN: optimizer.debugger
-
-! A simple tool for turning dataflow IR into quotations, for
-! debugging purposes.
-
-GENERIC: node>quot ( ? node -- )
-
-TUPLE: comment node text ;
-
-M: comment pprint*
-    "( " over comment-text " )" 3append
-    swap comment-node present-text ;
-
-: comment, ( ? node text -- )
-    rot [ \ comment boa , ] [ 2drop ] if ;
-
-: values% ( prefix values -- )
-    swap [
-        %
-        dup value? [
-            value-literal unparse %
-        ] [
-            "@" % unparse %
-        ] if
-    ] curry each ;
-
-: effect-str ( node -- str )
-    [
-        " " over node-in-d values%
-        " r: " over node-in-r values%
-        " --" %
-        " " over node-out-d values%
-        " r: " swap node-out-r values%
-    ] "" make rest ;
-
-MACRO: match-choose ( alist -- )
-    [ [ ] curry ] assoc-map [ match-cond ] curry ;
-
-MATCH-VARS: ?a ?b ?c ;
-
-: pretty-shuffle ( in out -- word/f )
-    2array {
-        { { { ?a } { } } drop }
-        { { { ?a ?b } { } } 2drop }
-        { { { ?a ?b ?c } { } } 3drop }
-        { { { ?a } { ?a ?a } } dup }
-        { { { ?a ?b } { ?a ?b ?a ?b } } 2dup }
-        { { { ?a ?b ?c } { ?a ?b ?c ?a ?b ?c } } 3dup }
-        { { { ?a ?b } { ?a ?b ?a } } over }
-        { { { ?b ?a } { ?a ?b } } swap }
-        { { { ?a ?b ?c } { ?a ?b ?c ?a } } pick }
-        { { { ?a ?b ?c } { ?c ?a ?b } } -rot }
-        { { { ?a ?b ?c } { ?b ?c ?a } } rot }
-        { { { ?a ?b } { ?b } } nip }
-        { _ f }
-    } match-choose ;
-
-M: #shuffle node>quot
-    dup node-in-d over node-out-d pretty-shuffle
-    [ , ] [ >r drop t r> ] if*
-    dup effect-str "#shuffle: " prepend comment, ;
-
-: pushed-literals node-out-d [ value-literal literalize ] map ;
-
-M: #push node>quot nip pushed-literals % ;
-
-DEFER: dataflow>quot
-
-: #call>quot ( ? node -- )
-    dup node-param dup ,
-    [ dup effect-str ] [ "empty call" ] if comment, ;
-
-M: #call node>quot #call>quot ;
-
-M: #call-label node>quot #call>quot ;
-
-M: #label node>quot
-    [
-        dup node-param literalize ,
-        dup #label-loop? "#loop: " "#label: " ?
-        over node-param word-name append comment,
-    ] 2keep
-    node-child swap dataflow>quot , \ call ,  ;
-
-M: #if node>quot
-    [ "#if" comment, ] 2keep
-    node-children swap [ dataflow>quot ] curry map %
-    \ if , ;
-
-M: #dispatch node>quot
-    [ "#dispatch" comment, ] 2keep
-    node-children swap [ dataflow>quot ] curry map ,
-    \ dispatch , ;
-
-M: #>r node>quot nip node-in-d length \ >r <array> % ;
-
-M: #r> node>quot nip node-out-d length \ r> <array> % ;
-
-M: object node>quot
-    [
-        dup class word-name %
-        " " %
-        dup node-param unparse %
-        " " %
-        dup effect-str %
-    ] "" make comment, ;
-
-: (dataflow>quot) ( ? node -- )
-    dup [
-        2dup node>quot node-successor (dataflow>quot)
-    ] [
-        2drop
-    ] if ;
-
-: dataflow>quot ( node ? -- quot )
-    [ swap (dataflow>quot) ] [ ] make ;
-
-: optimized-quot. ( quot ? -- )
-    #! Print dataflow IR for a quotation. Flag indicates if
-    #! annotations should be printed or not.
-    >r dataflow optimize r> dataflow>quot pprint nl ;
-
-: optimized-word. ( word ? -- ) >r specialized-def r> optimized-quot. ;
-
-SYMBOL: words-called
-SYMBOL: generics-called
-SYMBOL: methods-called
-SYMBOL: intrinsics-called
-SYMBOL: node-count
-
-: dataflow>report ( node -- alist )
-    [
-        H{ } clone words-called set
-        H{ } clone generics-called set
-        H{ } clone methods-called set
-        H{ } clone intrinsics-called set
-
-        0 swap [
-            >r 1+ r>
-            dup #call? [
-                node-param {
-                    { [ dup "intrinsics" word-prop over "if-intrinsics" word-prop or ] [ intrinsics-called ] }
-                    { [ dup generic? ] [ generics-called ] }
-                    { [ dup method-body? ] [ methods-called ] }
-                    [ words-called ]
-                } cond 1 -rot get at+
-            ] [
-                drop
-            ] if
-        ] each-node
-        node-count set
-    ] H{ } make-assoc ;
-
-: quot-optimize-report ( quot -- report )
-    dataflow optimize dataflow>report ;
-
-: word-optimize-report ( word -- report )
-    word-def quot-optimize-report ;
-
-: report. ( report -- )
-    [
-        "==== Total number of dataflow nodes:" print
-        node-count get .
-
-        {
-            { generics-called "==== Generic word calls:" }
-            { words-called "==== Ordinary word calls:" }
-            { methods-called "==== Non-inlined method calls:" }
-            { intrinsics-called "==== Open-coded intrinsic calls:" }
-        } [
-            nl print get keys natural-sort stack.
-        ] assoc-each
-    ] bind ;
-
-: optimizer-report. ( word -- )
-    word-optimize-report report. ;
diff --git a/extra/optimizer/report/report.factor b/extra/optimizer/report/report.factor
deleted file mode 100755
index 60b83819d5..0000000000
--- a/extra/optimizer/report/report.factor
+++ /dev/null
@@ -1,28 +0,0 @@
-USING: assocs words sequences arrays compiler tools.time
-io.styles io prettyprint vocabs kernel sorting generator
-optimizer math math.order ;
-IN: optimizer.report
-
-: count-optimization-passes ( nodes n -- n )
-    >r optimize-1
-    [ r> 1+ count-optimization-passes ] [ drop r> ] if ;
-
-: results
-    [ [ second ] prepose compare ] curry sort 20 tail*
-    print
-    standard-table-style
-    [
-        [ [ [ pprint-cell ] each ] with-row ] each
-    ] tabular-output ;
-
-: optimizer-report
-    all-words [ compiled? ] filter
-    [
-        dup [
-            word-dataflow nip 1 count-optimization-passes
-        ] benchmark 2array
-    ] { } map>assoc
-    [ first ] "Worst number of optimizer passes:" results
-    [ second ] "Worst compile times:" results ;
-
-MAIN: optimizer-report
diff --git a/extra/oracle/oracle.factor b/extra/oracle/oracle.factor
index 8ef169810a..e61a47a859 100644
--- a/extra/oracle/oracle.factor
+++ b/extra/oracle/oracle.factor
@@ -6,7 +6,7 @@
 
 USING: alien alien.c-types alien.strings combinators kernel math
 namespaces oracle.liboci prettyprint sequences
-io.encodings.ascii ;
+io.encodings.ascii accessors ;
 
 IN: oracle
 
@@ -102,9 +102,9 @@ C: <connection> connection
 
 : oci-log-on ( -- )
     env get err get svc get 
-    con get connection-username dup length swap ascii malloc-string swap 
-    con get connection-password dup length swap ascii malloc-string swap
-    con get connection-db dup length swap ascii malloc-string swap
+    con get username>> dup length swap ascii malloc-string swap 
+    con get password>> dup length swap ascii malloc-string swap
+    con get db>> dup length swap ascii malloc-string swap
     OCILogon check-result ;
 
 ! =========================================================
@@ -112,18 +112,18 @@ C: <connection> connection
 ! =========================================================
 
 : attach-to-server ( -- )
-    srv get err get con get connection-db dup length OCI_DEFAULT
+    srv get err get con get db>> dup length OCI_DEFAULT
     OCIServerAttach check-result ;
 
 : set-service-attribute ( -- )
     svc get OCI_HTYPE_SVCCTX srv get 0 OCI_ATTR_SERVER err get OCIAttrSet check-result ;
 
 : set-username-attribute ( -- )
-    ses get OCI_HTYPE_SESSION con get connection-username dup length swap ascii malloc-string swap 
+    ses get OCI_HTYPE_SESSION con get username>> dup length swap ascii malloc-string swap 
     OCI_ATTR_USERNAME err get OCIAttrSet check-result ;
 
 : set-password-attribute ( -- )
-    ses get OCI_HTYPE_SESSION con get connection-password dup length swap ascii malloc-string swap 
+    ses get OCI_HTYPE_SESSION con get password>> dup length swap ascii malloc-string swap 
     OCI_ATTR_PASSWORD err get OCIAttrSet check-result ;
 
 : set-attributes ( -- )
diff --git a/extra/ori/ori-tests.factor b/extra/ori/ori-tests.factor
new file mode 100644
index 0000000000..6121ab101e
--- /dev/null
+++ b/extra/ori/ori-tests.factor
@@ -0,0 +1,9 @@
+IN: ori.tests
+USING: ori tools.test ;
+
+\ pitch-up   must-infer
+\ pitch-down must-infer
+\ turn-left  must-infer
+\ turn-right must-infer
+\ roll-left  must-infer
+\ roll-right must-infer
diff --git a/extra/ori/ori.factor b/extra/ori/ori.factor
index 729dcba56a..de720a229f 100644
--- a/extra/ori/ori.factor
+++ b/extra/ori/ori.factor
@@ -1,7 +1,7 @@
 
-USING: kernel namespaces
+USING: kernel namespaces accessors
        math math.constants math.functions math.matrices math.vectors
-       sequences splitting self math.trig ;
+       sequences splitting grouping self math.trig ;
 
 IN: ori
 
@@ -11,13 +11,13 @@ C: <ori> ori
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: ori> ( -- val ) self> ori-val ;
+: ori> ( -- val ) self> val>> ;
 
-: >ori ( val -- ) self> set-ori-val ;
+: >ori ( val -- ) self> (>>val) ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: make-matrix ( quot width -- matrix ) >r { } make r> group ;
+: make-matrix ( quot width -- matrix ) >r { } make r> group ; inline
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
diff --git a/extra/pack/pack.factor b/extra/pack/pack.factor
index 5320583df0..a5d4b36c0b 100755
--- a/extra/pack/pack.factor
+++ b/extra/pack/pack.factor
@@ -1,7 +1,7 @@
-USING: alien alien.c-types arrays assocs byte-arrays inference
-inference.transforms io io.binary io.streams.string kernel math
-math.parser namespaces parser prettyprint quotations sequences
-strings vectors words macros math.functions math.bitfields.lib ;
+USING: alien alien.c-types arrays assocs byte-arrays io
+io.binary io.streams.string kernel math math.parser namespaces
+parser prettyprint quotations sequences strings vectors words
+macros math.functions math.bitwise ;
 IN: pack
 
 SYMBOL: big-endian
@@ -84,7 +84,7 @@ M: string b, ( n string -- ) heap-size b, ;
     "\0" read-until [ drop f ] unless ;
 
 : read-c-string* ( n -- str/f )
-    read [ zero? ] right-trim dup empty? [ drop f ] when ;
+    read [ zero? ] trim-right [ f ] when-empty ;
 
 : (read-128-ber) ( n -- n )
     read1
diff --git a/extra/pango/cairo/gadgets/gadgets.factor b/extra/pango/cairo/gadgets/gadgets.factor
deleted file mode 100644
index 9e8a99515e..0000000000
--- a/extra/pango/cairo/gadgets/gadgets.factor
+++ /dev/null
@@ -1,30 +0,0 @@
-! Copyright (C) 2008 Matthew Willis.
-! See http://factorcode.org/license.txt for BSD license.
-USING: pango.cairo cairo cairo.ffi cairo.gadgets
-alien.c-types kernel math ;
-IN: pango.cairo.gadgets
-
-: (pango-gadget) ( setup show -- gadget )
-    [ drop layout-size ]
-    [ compose [ with-pango ] curry <cairo-gadget> ] 2bi ;
-
-: <pango-gadget> ( quot -- gadget )
-    [ cr layout pango_cairo_show_layout ] (pango-gadget) ;
-
-USING: prettyprint sequences ui.gadgets.panes
-threads io.backend io.encodings.utf8 io.files ;
-: hello-pango ( -- )
-    50 [ 6 + ] map [
-        "Sans " swap unparse append
-        [ 
-            cr 0 1 0.2 0.6 cairo_set_source_rgba
-            layout-font "今日�� Pango!" layout-text
-        ] curry
-        <pango-gadget> gadget. yield
-    ] each
-    [ 
-        "resource:extra/pango/cairo/gadgets/gadgets.factor"
-        normalize-path utf8 file-contents layout-text
-    ] <pango-gadget> gadget. ;
-
-MAIN: hello-pango
diff --git a/extra/parser-combinators/parser-combinators-docs.factor b/extra/parser-combinators/parser-combinators-docs.factor
index 41171ce822..c08243d17d 100755
--- a/extra/parser-combinators/parser-combinators-docs.factor
+++ b/extra/parser-combinators/parser-combinators-docs.factor
@@ -23,4 +23,4 @@ HELP: any-char-parser
     "from the input string. The value consumed is the "
     "result of the parse." }
 { $examples
-{ $example "USING: lazy-lists parser-combinators prettyprint ;" "\"foo\" any-char-parser parse-1 ." "102" } } ;
+{ $example "USING: lists.lazy parser-combinators prettyprint ;" "\"foo\" any-char-parser parse-1 ." "102" } } ;
diff --git a/extra/parser-combinators/parser-combinators-tests.factor b/extra/parser-combinators/parser-combinators-tests.factor
index 2dd3fd911c..70698daa0b 100755
--- a/extra/parser-combinators/parser-combinators-tests.factor
+++ b/extra/parser-combinators/parser-combinators-tests.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2005 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel lazy-lists tools.test strings math
+USING: kernel lists.lazy tools.test strings math
 sequences parser-combinators arrays math.parser unicode.categories ;
 IN: parser-combinators.tests
 
diff --git a/extra/parser-combinators/parser-combinators.factor b/extra/parser-combinators/parser-combinators.factor
index 9537a0c88c..0ee91bc326 100755
--- a/extra/parser-combinators/parser-combinators.factor
+++ b/extra/parser-combinators/parser-combinators.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2004 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: lazy-lists promises kernel sequences strings math
+USING: lists lists.lazy promises kernel sequences strings math
 arrays splitting quotations combinators namespaces
-unicode.case unicode.categories sequences.deep ;
+unicode.case unicode.categories sequences.deep accessors ;
 IN: parser-combinators
 
 ! Parser combinator protocol
@@ -13,11 +13,13 @@ M: promise parse ( input parser -- list )
 
 TUPLE: parse-result parsed unparsed ;
 
+ERROR: cannot-parse input ;
+
 : parse-1 ( input parser -- result )
     dupd parse dup nil? [
-        "Cannot parse " rot append throw
+        rot cannot-parse
     ] [
-        nip car parse-result-parsed
+        nip car parsed>>
     ] if ;
 
 C: <parse-result> parse-result
@@ -26,12 +28,12 @@ C: <parse-result> parse-result
     <parse-result> 1list ;
 
 : parse-result-parsed-slice ( parse-result -- slice )
-    dup parse-result-parsed empty? [
-        parse-result-unparsed 0 0 rot <slice>
+    dup parsed>> empty? [
+        unparsed>> 0 0 rot <slice>
     ] [
-        dup parse-result-unparsed
-        dup slice-from [ rot parse-result-parsed length - ] keep
-        rot slice-seq <slice>
+        dup unparsed>>
+        dup from>> [ rot parsed>> length - ] keep
+        rot seq>> <slice>
     ] if ;
 
 : string= ( str1 str2 ignore-case -- ? )
@@ -57,7 +59,7 @@ C: <token-parser> token-parser
 : case-insensitive-token ( string -- parser ) t <token-parser> ;
 
 M: token-parser parse ( input parser -- list )
-    dup token-parser-string swap token-parser-ignore-case?
+    [ string>> ] [ ignore-case?>> ] bi
     >r tuck r> ?string-head
     [ <parse-results> ] [ 2drop nil ] if ;
 
@@ -74,7 +76,7 @@ M: satisfy-parser parse ( input parser -- list )
     over empty? [
         2drop nil
     ] [
-        satisfy-parser-quot >r unclip-slice dup r> call
+        quot>> >r unclip-slice dup r> call
         [ swap <parse-results> ] [ 2drop nil ] if
     ] if ;
 
@@ -99,7 +101,7 @@ C: succeed succeed-parser ( result -- parser )
 M: succeed-parser parse ( input parser -- list )
     #! A parser that always returns 'result' as a
     #! successful parse with no input consumed.
-    succeed-parser-result swap <parse-results> ;
+    result>> swap <parse-results> ;
 
 TUPLE: fail-parser ;
 
@@ -116,7 +118,7 @@ TUPLE: ensure-parser test ;
     ensure-parser boa ;
 
 M: ensure-parser parse ( input parser -- list )
-    2dup ensure-parser-test parse nil?
+    2dup test>> parse nil?
     [ 2drop nil ] [ drop t swap <parse-results> ] if ;
 
 TUPLE: ensure-not-parser test ;
@@ -125,14 +127,14 @@ TUPLE: ensure-not-parser test ;
     ensure-not-parser boa ;
 
 M: ensure-not-parser parse ( input parser -- list )
-    2dup ensure-not-parser-test parse nil?
+    2dup test>> parse nil?
     [ drop t swap <parse-results> ] [ 2drop nil ] if ;
 
 TUPLE: and-parser parsers ;
 
 : <&> ( parser1 parser2 -- parser )
     over and-parser? [
-        >r and-parser-parsers r> suffix
+        >r parsers>> r> suffix
     ] [
         2array
     ] if and-parser boa ;
@@ -142,20 +144,20 @@ TUPLE: and-parser parsers ;
 
 : and-parser-parse ( list p1  -- list )
     swap [
-        dup parse-result-unparsed rot parse
+        dup unparsed>> rot parse
         [
-            >r parse-result-parsed r>
-            [ parse-result-parsed 2array ] keep
-            parse-result-unparsed <parse-result>
-        ] lmap-with
-    ] lmap-with lconcat ;
+            >r parsed>> r>
+            [ parsed>> 2array ] keep
+            unparsed>> <parse-result>
+        ] lazy-map-with
+    ] lazy-map-with lconcat ;
 
 M: and-parser parse ( input parser -- list )
     #! Parse 'input' by sequentially combining the
     #! two parsers. First parser1 is applied to the
     #! input then parser2 is applied to the rest of
     #! the input strings from the first parser.
-    and-parser-parsers unclip swapd parse
+    parsers>> unclip swapd parse
     [ [ and-parser-parse ] reduce ] 2curry promise ;
 
 TUPLE: or-parser parsers ;
@@ -170,14 +172,14 @@ M: or-parser parse ( input parser1 -- list )
     #! Return the combined list resulting from the parses
     #! of parser1 and parser2 being applied to the same
     #! input. This implements the choice parsing operator.
-    or-parser-parsers 0 swap seq>list
-    [ parse ] lmap-with lconcat ;
+    parsers>> 0 swap seq>list
+    [ parse ] lazy-map-with lconcat ;
 
-: left-trim-slice ( string -- string )
+: trim-left-slice ( string -- string )
     #! Return a new string without any leading whitespace
     #! from the original string.
     dup empty? [
-        dup first blank? [ rest-slice left-trim-slice ] when
+        dup first blank? [ rest-slice trim-left-slice ] when
     ] unless ;
 
 TUPLE: sp-parser p1 ;
@@ -189,7 +191,7 @@ C: sp sp-parser ( p1 -- parser )
 M: sp-parser parse ( input parser -- list )
     #! Skip all leading whitespace from the input then call
     #! the parser on the remaining input.
-    >r left-trim-slice r> sp-parser-p1 parse ;
+    >r trim-left-slice r> p1>> parse ;
 
 TUPLE: just-parser p1 ;
 
@@ -200,7 +202,7 @@ M: just-parser parse ( input parser -- result )
     #! from the results anything where the remaining
     #! input to be parsed is not empty. So ensures a
     #! fully parsed input string.
-    just-parser-p1 parse [ parse-result-unparsed empty? ] lfilter ;
+    p1>> parse [ unparsed>> empty? ] lfilter ;
 
 TUPLE: apply-parser p1 quot ;
 
@@ -212,11 +214,11 @@ M: apply-parser parse ( input parser -- result )
     #! The result of that quotation then becomes the new parse result.
     #! This allows modification of parse tree results (like
     #! converting strings to integers, etc).
-    [ apply-parser-p1 ] keep apply-parser-quot
+    [ p1>> ] [ quot>> ] bi
     -rot parse [
-        [ parse-result-parsed swap call ] keep
-        parse-result-unparsed <parse-result>
-    ] lmap-with ;
+        [ parsed>> swap call ] keep
+        unparsed>> <parse-result>
+    ] lazy-map-with ;
 
 TUPLE: some-parser p1 ;
 
@@ -227,7 +229,7 @@ M: some-parser parse ( input parser -- result )
     #! the parse is complete (the remaining input is empty),
     #! picks the first solution and only returns the parse
     #! tree since the remaining input is empty.
-    some-parser-p1 just parse-1 ;
+    p1>> just parse-1 ;
 
 : <& ( parser1 parser2 -- parser )
     #! Same as <&> except discard the results of the second parser.
@@ -270,7 +272,7 @@ LAZY: only-first ( parser -- parser )
 M: only-first-parser parse ( input parser -- list )
     #! Transform a parser into a parser that only yields
     #! the first possibility.
-    only-first-parser-p1 parse 1 swap ltake ;
+    p1>> parse 1 swap ltake ;
 
 LAZY: <!*> ( parser -- parser )
     #! Like <*> but only return one possible result
diff --git a/extra/parser-combinators/simple/simple-docs.factor b/extra/parser-combinators/simple/simple-docs.factor
index 78b731f5b0..fdf32bddb1 100755
--- a/extra/parser-combinators/simple/simple-docs.factor
+++ b/extra/parser-combinators/simple/simple-docs.factor
@@ -11,7 +11,7 @@ HELP: 'digit'
     "the input string. The numeric value of the digit "
     " consumed is the result of the parse." }
 { $examples
-{ $example "USING: lazy-lists parser-combinators parser-combinators.simple prettyprint ;" "\"123\" 'digit' parse-1 ." "1" } } ;
+{ $example "USING: lists.lazy parser-combinators parser-combinators.simple prettyprint ;" "\"123\" 'digit' parse-1 ." "1" } } ;
 
 HELP: 'integer'
 { $values 
@@ -21,7 +21,7 @@ HELP: 'integer'
     "the input string. The numeric value of the integer "
     " consumed is the result of the parse." }
 { $examples
-{ $example "USING: lazy-lists parser-combinators parser-combinators.simple prettyprint ;" "\"123\" 'integer' parse-1 ." "123" } } ;
+{ $example "USING: lists.lazy parser-combinators parser-combinators.simple prettyprint ;" "\"123\" 'integer' parse-1 ." "123" } } ;
 HELP: 'string'
 { $values 
   { "parser" "a parser object" } }
@@ -30,7 +30,7 @@ HELP: 'string'
     "quotations from the input string. The string value "
     " consumed is the result of the parse." }
 { $examples
-{ $example "USING: lazy-lists parser-combinators parser-combinators.simple prettyprint ;" "\"\\\"foo\\\"\" 'string' parse-1 ." "\"foo\"" } } ;
+{ $example "USING: lists.lazy parser-combinators parser-combinators.simple prettyprint ;" "\"\\\"foo\\\"\" 'string' parse-1 ." "\"foo\"" } } ;
 
 HELP: 'bold'
 { $values 
@@ -62,6 +62,6 @@ HELP: comma-list
     "'element' should be a parser that can parse the elements. The "
     "result of the parser is a sequence of the parsed elements." }
 { $examples
-{ $example "USING: lazy-lists parser-combinators parser-combinators.simple prettyprint ;" "\"1,2,3,4\" 'integer' comma-list parse-1 ." "{ 1 2 3 4 }" } } ;
+{ $example "USING: lists.lazy parser-combinators parser-combinators.simple prettyprint ;" "\"1,2,3,4\" 'integer' comma-list parse-1 ." "{ 1 2 3 4 }" } } ;
 
 { $see-also 'digit' 'integer' 'string' 'bold' 'italic' comma-list } related-words
diff --git a/extra/parser-combinators/simple/simple.factor b/extra/parser-combinators/simple/simple.factor
index 745442610c..f7a696ca35 100755
--- a/extra/parser-combinators/simple/simple.factor
+++ b/extra/parser-combinators/simple/simple.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2006 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel strings math sequences lazy-lists words
+USING: kernel strings math sequences lists.lazy words
 math.parser promises parser-combinators unicode.categories ;
 IN: parser-combinators.simple
 
diff --git a/extra/peg/ebnf/ebnf-tests.factor b/extra/peg/ebnf/ebnf-tests.factor
deleted file mode 100644
index faaa63f4bd..0000000000
--- a/extra/peg/ebnf/ebnf-tests.factor
+++ /dev/null
@@ -1,367 +0,0 @@
-! Copyright (C) 2007 Chris Double.
-! See http://factorcode.org/license.txt for BSD license.
-!
-USING: kernel tools.test peg peg.ebnf words math math.parser 
-       sequences accessors ;
-IN: peg.ebnf.tests
-
-{ T{ ebnf-non-terminal f "abc" } } [
-  "abc" 'non-terminal' parse ast>> 
-] unit-test
-
-{ T{ ebnf-terminal f "55" } } [
-  "'55'" 'terminal' parse ast>> 
-] unit-test
-
-{
-  T{ ebnf-rule f 
-     "digit"
-     T{ ebnf-choice f
-        V{ T{ ebnf-terminal f "1" } T{ ebnf-terminal f "2" } }
-     }
-  } 
-} [
-  "digit = '1' | '2'" 'rule' parse ast>>
-] unit-test
-
-{
-  T{ ebnf-rule f 
-     "digit" 
-     T{ ebnf-sequence f
-        V{ T{ ebnf-terminal f "1" } T{ ebnf-terminal f "2" } }
-     }
-  }   
-} [
-  "digit = '1' '2'" 'rule' parse ast>>
-] unit-test
-
-{
-  T{ ebnf-choice f
-     V{ 
-       T{ ebnf-sequence f
-          V{ T{ ebnf-non-terminal f "one" } T{ ebnf-non-terminal f "two" } }
-       }
-       T{ ebnf-non-terminal f "three" }
-     }
-  } 
-} [
-  "one two | three" 'choice' parse ast>>
-] unit-test
-
-{
-  T{ ebnf-sequence f
-     V{ 
-       T{ ebnf-non-terminal f "one" }
-       T{ ebnf-whitespace f
-         T{ ebnf-choice f
-            V{ T{ ebnf-non-terminal f "two" } T{ ebnf-non-terminal f "three" } }
-         }
-       }
-     }
-  } 
-} [
-  "one {two | three}" 'choice' parse ast>>
-] unit-test
-
-{
-  T{ ebnf-sequence f
-     V{ 
-       T{ ebnf-non-terminal f "one" }
-       T{ ebnf-repeat0 f
-          T{ ebnf-sequence f
-             V{
-                T{ ebnf-choice f
-                   V{ T{ ebnf-non-terminal f "two" } T{ ebnf-non-terminal f "three" } }
-                }
-                T{ ebnf-non-terminal f "four" }
-             }
-          }
-        }
-     }
-  } 
-} [
-  "one ((two | three) four)*" 'choice' parse ast>>
-] unit-test
-
-{
-  T{ ebnf-sequence f
-     V{ 
-         T{ ebnf-non-terminal f "one" } 
-         T{ ebnf-optional f T{ ebnf-non-terminal f "two" } }
-         T{ ebnf-non-terminal f "three" }
-     }
-  } 
-} [
-  "one ( two )? three" 'choice' parse ast>>
-] unit-test
-
-{ "foo" } [
-  "\"foo\"" 'identifier' parse ast>>
-] unit-test
-
-{ "foo" } [
-  "'foo'" 'identifier' parse ast>>
-] unit-test
-
-{ "foo" } [
-  "foo" 'non-terminal' parse ast>> ebnf-non-terminal-symbol
-] unit-test
-
-{ "foo" } [
-  "foo]" 'non-terminal' parse ast>> ebnf-non-terminal-symbol
-] unit-test
-
-{ V{ "a" "b" } } [
-  "ab" [EBNF foo='a' 'b' EBNF] call ast>> 
-] unit-test
-
-{ V{ 1 "b" } } [
-  "ab" [EBNF foo=('a')[[ drop 1 ]] 'b' EBNF] call ast>> 
-] unit-test
-
-{ V{ 1 2 } } [
-  "ab" [EBNF foo=('a') [[ drop 1 ]] ('b') [[ drop 2 ]] EBNF] call ast>> 
-] unit-test
-
-{ CHAR: A } [
-  "A" [EBNF foo=[A-Z] EBNF] call ast>> 
-] unit-test
-
-{ CHAR: Z } [
-  "Z" [EBNF foo=[A-Z] EBNF] call ast>> 
-] unit-test
-
-{ f } [
-  "0" [EBNF foo=[A-Z] EBNF] call  
-] unit-test
-
-{ CHAR: 0 } [
-  "0" [EBNF foo=[^A-Z] EBNF] call ast>> 
-] unit-test
-
-{ f } [
-  "A" [EBNF foo=[^A-Z] EBNF] call  
-] unit-test
-
-{ f } [
-  "Z" [EBNF foo=[^A-Z] EBNF] call  
-] unit-test
-
-{ V{ "1" "+" "foo" } } [
-  "1+1" [EBNF foo='1' '+' '1' [[ drop "foo" ]] EBNF] call ast>>
-] unit-test
-
-{ "foo" } [
-  "1+1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] EBNF] call ast>>
-] unit-test
-
-{ "foo" } [
-  "1+1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] | '1' '-' '1' => [[ drop "bar" ]] EBNF] call ast>>
-] unit-test
-
-{ "bar" } [
-  "1-1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] | '1' '-' '1' => [[ drop "bar" ]] EBNF] call ast>>
-] unit-test
-
-{ 6 } [
-  "4+2" [EBNF num=[0-9] => [[ digit> ]] foo=num:x '+' num:y => [[ drop x y + ]] EBNF] call ast>>
-] unit-test
-
-{ 6 } [
-  "4+2" [EBNF foo=[0-9]:x '+' [0-9]:y => [[ drop x digit> y digit> + ]] EBNF] call ast>>
-] unit-test
-
-{ 10 } [
-  { 1 2 3 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ drop x y + ]] | num EBNF] call ast>>
-] unit-test
-
-{ f } [
-  { "a" 2 3 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ drop x y + ]] | num EBNF] call 
-] unit-test
-
-{ 3 } [
-  { 1 2 "a" 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ drop x y + ]] | num EBNF] call ast>>
-] unit-test
-
-{ f } [
-  "ab" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call 
-] unit-test
-
-{ V{ "a" " " "b" } } [
-  "a b" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" "\t" "b" } } [
-  "a\tb" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call ast>> 
-] unit-test
-
-{ V{ "a" "\n" "b" } } [
-  "a\nb" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" f "b" } } [
-  "ab" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" " " "b" } } [
-  "a b" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
-] unit-test
-
-
-{ V{ "a" "\t" "b" } } [
-  "a\tb" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" "\n" "b" } } [
-  "a\nb" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" "b" } } [
-  "ab" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" "b" } } [
-  "a\tb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call ast>>
-] unit-test
-
-{ V{ "a" "b" } } [
-  "a\nb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call ast>>
-] unit-test
-
-{ f } [
-  "axb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call 
-] unit-test
-
-{ V{ V{ 49 } "+" V{ 49 } } } [ 
-  #! Test direct left recursion. 
-  #! Using packrat, so first part of expr fails, causing 2nd choice to be used  
-  "1+1" [EBNF num=([0-9])+ expr=expr "+" num | num EBNF] call ast>>
-] unit-test
-
-{ V{ V{ V{ 49 } "+" V{ 49 } } "+" V{ 49 } } } [ 
-  #! Test direct left recursion. 
-  #! Using packrat, so first part of expr fails, causing 2nd choice to be used  
-  "1+1+1" [EBNF num=([0-9])+ expr=expr "+" num | num EBNF] call ast>>
-] unit-test
-
-{ V{ V{ V{ 49 } "+" V{ 49 } } "+" V{ 49 } } } [ 
-  #! Test indirect left recursion. 
-  #! Using packrat, so first part of expr fails, causing 2nd choice to be used  
-  "1+1+1" [EBNF num=([0-9])+ x=expr expr=x "+" num | num EBNF] call ast>>
-] unit-test
-
-{ t } [
-  "abcd='9' | ('8'):x => [[ drop x ]]" 'ebnf' parse parse-result-remaining empty?
-] unit-test
-
-EBNF: primary 
-Primary = PrimaryNoNewArray
-PrimaryNoNewArray =  ClassInstanceCreationExpression
-                   | MethodInvocation
-                   | FieldAccess
-                   | ArrayAccess
-                   | "this"
-ClassInstanceCreationExpression =  "new" ClassOrInterfaceType "(" ")"
-                                 | Primary "." "new" Identifier "(" ")"
-MethodInvocation =  Primary "." MethodName "(" ")"
-                  | MethodName "(" ")"
-FieldAccess =  Primary "." Identifier
-             | "super" "." Identifier  
-ArrayAccess =  Primary "[" Expression "]" 
-             | ExpressionName "[" Expression "]"
-ClassOrInterfaceType = ClassName | InterfaceTypeName
-ClassName = "C" | "D"
-InterfaceTypeName = "I" | "J"
-Identifier = "x" | "y" | ClassOrInterfaceType
-MethodName = "m" | "n"
-ExpressionName = Identifier
-Expression = "i" | "j"
-main = Primary
-;EBNF 
-
-{ "this" } [
-  "this" primary ast>>
-] unit-test
-
-{ V{ "this" "." "x" } } [
-  "this.x" primary ast>>
-] unit-test
-
-{ V{ V{ "this" "." "x" } "." "y" } } [
-  "this.x.y" primary ast>>
-] unit-test
-
-{ V{ V{ "this" "." "x" } "." "m" "(" ")" } } [
-  "this.x.m()" primary ast>>
-] unit-test
-
-{ V{ V{ V{ "x" "[" "i" "]" } "[" "j" "]" } "." "y" } } [
-  "x[i][j].y" primary ast>>
-] unit-test
-
-'ebnf' compile must-infer
-
-{ V{ V{ "a" "b" } "c" } } [
-  "abc" [EBNF a="a" "b" foo=(a "c") EBNF] call ast>>
-] unit-test
-
-{ V{ V{ "a" "b" } "c" } } [
-  "abc" [EBNF a="a" "b" foo={a "c"} EBNF] call ast>>
-] unit-test
-
-{ V{ V{ "a" "b" } "c" } } [
-  "abc" [EBNF a="a" "b" foo=a "c" EBNF] call ast>>
-] unit-test
-
-{ f } [
-  "a bc" [EBNF a="a" "b" foo=(a "c") EBNF] call 
-] unit-test
-
-{ f } [
-  "a bc" [EBNF a="a" "b" foo=a "c" EBNF] call 
-] unit-test
-
-{ f } [
-  "a bc" [EBNF a="a" "b" foo={a "c"} EBNF] call
-] unit-test
-
-{ f } [
-  "ab c" [EBNF a="a" "b" foo=a "c" EBNF] call 
-] unit-test
-
-{ V{ V{ "a" "b" } "c" } } [
-  "ab c" [EBNF a="a" "b" foo={a "c"} EBNF] call ast>>
-] unit-test
-
-{ f } [
-  "ab c" [EBNF a="a" "b" foo=(a "c") EBNF] call 
-] unit-test
-
-{ f } [
-  "a b c" [EBNF a="a" "b" foo=a "c" EBNF] call 
-] unit-test
-
-{ f } [
-  "a b c" [EBNF a="a" "b" foo=(a "c") EBNF] call 
-] unit-test
-
-{ f } [
-  "a b c" [EBNF a="a" "b" foo={a "c"} EBNF] call 
-] unit-test
-
-{ V{ V{ V{ "a" "b" } "c" } V{ V{ "a" "b" } "c" } } } [
-  "ab cab c" [EBNF a="a" "b" foo={a "c"}* EBNF] call ast>>
-] unit-test
-
-{ V{ } } [
-  "ab cab c" [EBNF a="a" "b" foo=(a "c")* EBNF] call ast>>
-] unit-test
-
-{ V{ V{ V{ "a" "b" } "c" } V{ V{ "a" "b" } "c" } } } [
-  "ab c ab c" [EBNF a="a" "b" foo={a "c"}* EBNF] call ast>>
-] unit-test
-
-{ V{ } } [
-  "ab c ab c" [EBNF a="a" "b" foo=(a "c")* EBNF] call ast>>
-] unit-test
-
diff --git a/extra/peg/expr/expr-tests.factor b/extra/peg/expr/expr-tests.factor
index b6f3163bf4..59c70cd358 100644
--- a/extra/peg/expr/expr-tests.factor
+++ b/extra/peg/expr/expr-tests.factor
@@ -5,21 +5,21 @@ USING: kernel tools.test peg peg.expr multiline sequences ;
 IN: peg.expr.tests
 
 { 5 } [
-  "2+3" eval-expr 
+  "2+3" expr 
 ] unit-test
 
 { 6 } [
-  "2*3" eval-expr 
+  "2*3" expr 
 ] unit-test
 
 { 14 } [
-  "2+3*4" eval-expr 
+  "2+3*4" expr 
 ] unit-test
 
 { 17 } [
-  "2+3*4+3" eval-expr 
+  "2+3*4+3" expr 
 ] unit-test
 
 { 23 } [
-  "2+3*(4+3)" eval-expr 
+  "2+3*(4+3)" expr 
 ] unit-test
diff --git a/extra/peg/expr/expr.factor b/extra/peg/expr/expr.factor
index e2df60ea9a..8b10b4fc0c 100644
--- a/extra/peg/expr/expr.factor
+++ b/extra/peg/expr/expr.factor
@@ -18,7 +18,3 @@ exp      =   exp "+" fac    => [[ first3 nip + ]]
            | exp "-" fac    => [[ first3 nip - ]]
            | fac
 ;EBNF
-
-: eval-expr ( string -- number )
-  expr ast>> ;
-
diff --git a/extra/peg/javascript/ast/ast.factor b/extra/peg/javascript/ast/ast.factor
new file mode 100644
index 0000000000..9f67af86aa
--- /dev/null
+++ b/extra/peg/javascript/ast/ast.factor
@@ -0,0 +1,43 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel ;
+IN: peg.javascript.ast
+
+TUPLE: ast-keyword value ;
+TUPLE: ast-name value ;
+TUPLE: ast-number value ;
+TUPLE: ast-string value ;
+TUPLE: ast-regexp body flags ;
+TUPLE: ast-cond-expr condition then else ;
+TUPLE: ast-set lhs rhs ;
+TUPLE: ast-get value ;
+TUPLE: ast-mset lhs rhs operator ;
+TUPLE: ast-binop lhs rhs operator ;
+TUPLE: ast-unop expr operator ;
+TUPLE: ast-postop expr operator ;
+TUPLE: ast-preop expr operator ;
+TUPLE: ast-getp index expr ;
+TUPLE: ast-send method expr args ;
+TUPLE: ast-call expr args ;
+TUPLE: ast-this ;
+TUPLE: ast-new name args ;
+TUPLE: ast-array values ;
+TUPLE: ast-json bindings ;
+TUPLE: ast-binding name value ;
+TUPLE: ast-func fs body ;
+TUPLE: ast-var name value ;
+TUPLE: ast-begin statements ;
+TUPLE: ast-if condition true false ;
+TUPLE: ast-while condition statements ;
+TUPLE: ast-do-while statements condition ;
+TUPLE: ast-for i c u statements ;
+TUPLE: ast-for-in v e statements ;
+TUPLE: ast-switch expr statements ;
+TUPLE: ast-break ;
+TUPLE: ast-continue ;
+TUPLE: ast-throw e ;
+TUPLE: ast-try t e c f ;
+TUPLE: ast-return e ;
+TUPLE: ast-with expr body ;
+TUPLE: ast-case c cs ;
+TUPLE: ast-default cs ;
diff --git a/extra/match/authors.txt b/extra/peg/javascript/ast/authors.txt
similarity index 100%
rename from extra/match/authors.txt
rename to extra/peg/javascript/ast/authors.txt
diff --git a/extra/peg/javascript/ast/summary.txt b/extra/peg/javascript/ast/summary.txt
new file mode 100644
index 0000000000..543a2e6373
--- /dev/null
+++ b/extra/peg/javascript/ast/summary.txt
@@ -0,0 +1 @@
+Abstract Syntax Tree for JavaScript parser
diff --git a/extra/peg/javascript/ast/tags.txt b/extra/peg/javascript/ast/tags.txt
new file mode 100644
index 0000000000..c2aac2932f
--- /dev/null
+++ b/extra/peg/javascript/ast/tags.txt
@@ -0,0 +1,3 @@
+text
+javascript
+parsing
diff --git a/extra/ogg/authors.txt b/extra/peg/javascript/authors.txt
similarity index 100%
rename from extra/ogg/authors.txt
rename to extra/peg/javascript/authors.txt
diff --git a/extra/peg/javascript/javascript-docs.factor b/extra/peg/javascript/javascript-docs.factor
new file mode 100644
index 0000000000..5fdc3e8587
--- /dev/null
+++ b/extra/peg/javascript/javascript-docs.factor
@@ -0,0 +1,14 @@
+! Copyright (C) 2007 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: help.markup help.syntax ;
+IN: peg.javascript
+
+HELP: parse-javascript
+{ $values 
+  { "string" "a string" } 
+  { "ast" "a JavaScript abstract syntax tree" } 
+}
+{ $description 
+    "Parse the input string using the JavaScript parser. Throws an error if "
+    "the string does not contain valid JavaScript. Returns the abstract syntax tree "
+    "if successful." } ;
diff --git a/extra/peg/javascript/javascript-tests.factor b/extra/peg/javascript/javascript-tests.factor
new file mode 100644
index 0000000000..0d6899714d
--- /dev/null
+++ b/extra/peg/javascript/javascript-tests.factor
@@ -0,0 +1,11 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+!
+USING: kernel tools.test peg.javascript peg.javascript.ast accessors ;
+IN: peg.javascript.tests
+
+\ parse-javascript must-infer
+
+{ T{ ast-begin f V{ T{ ast-number f 123 } } } } [
+  "123;" parse-javascript
+] unit-test
\ No newline at end of file
diff --git a/extra/peg/javascript/javascript.factor b/extra/peg/javascript/javascript.factor
new file mode 100644
index 0000000000..4a919cf39f
--- /dev/null
+++ b/extra/peg/javascript/javascript.factor
@@ -0,0 +1,7 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors peg.javascript.tokenizer peg.javascript.parser ;
+IN: peg.javascript
+
+: parse-javascript ( string -- ast )
+  javascript ;
diff --git a/extra/ogg/player/authors.txt b/extra/peg/javascript/parser/authors.txt
similarity index 100%
rename from extra/ogg/player/authors.txt
rename to extra/peg/javascript/parser/authors.txt
diff --git a/extra/peg/javascript/parser/parser-tests.factor b/extra/peg/javascript/parser/parser-tests.factor
new file mode 100644
index 0000000000..769dc41f78
--- /dev/null
+++ b/extra/peg/javascript/parser/parser-tests.factor
@@ -0,0 +1,57 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+!
+USING: kernel tools.test peg peg.javascript.ast peg.javascript.parser 
+       accessors multiline sequences math peg.ebnf ;
+IN: peg.javascript.parser.tests
+
+\ javascript must-infer
+
+{
+  T{
+      ast-begin
+      f
+      V{
+          T{ ast-number f 123 }
+          T{ ast-string f "hello" }
+          T{
+              ast-call
+              f
+              T{ ast-get f "foo" }
+              V{ T{ ast-get f "x" } }
+          }
+      }
+  }
+} [
+  "123; 'hello'; foo(x);" javascript
+] unit-test
+
+{ t } [ 
+<"
+var x=5
+var y=10
+"> main \ javascript rule (parse) remaining>> length zero?
+] unit-test
+
+
+{ t } [ 
+<"
+function foldl(f, initial, seq) {
+   for(var i=0; i< seq.length; ++i)
+     initial = f(initial, seq[i]);
+   return initial;
+}
+"> main \ javascript rule (parse) remaining>> length zero?
+] unit-test
+
+{ t } [ 
+<"
+ParseState.prototype.from = function(index) {
+    var r = new ParseState(this.input, this.index + index);
+    r.cache = this.cache;
+    r.length = this.length - index;
+    return r;
+}
+"> main \ javascript rule (parse) remaining>> length zero?
+] unit-test
+
diff --git a/extra/peg/javascript/parser/parser.factor b/extra/peg/javascript/parser/parser.factor
new file mode 100644
index 0000000000..7ace528150
--- /dev/null
+++ b/extra/peg/javascript/parser/parser.factor
@@ -0,0 +1,199 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors peg peg.ebnf peg.javascript.ast peg.javascript.tokenizer ;
+IN: peg.javascript.parser
+
+#! Grammar for JavaScript. Based on OMeta-JS example from:
+#! http://jarrett.cs.ucla.edu/ometa-js/#JavaScript_Compiler 
+
+#! The interesting thing about this parser is the mixing of
+#! a default and non-default tokenizer. The JavaScript tokenizer
+#! removes all newlines. So when operating on tokens there is no
+#! need for newline and space skipping in the grammar. But JavaScript
+#! uses the newline in the 'automatic semicolon insertion' rule. 
+#!
+#! If a statement ends in a newline, sometimes the semicolon can be
+#! skipped. So we define an 'nl' rule using the default tokenizer. 
+#! This operates a character at a time. Using this 'nl' in the parser
+#! allows us to detect newlines when we need to for the semicolon
+#! insertion rule, but ignore it in all other places.
+EBNF: javascript
+tokenizer         = default 
+nl                = "\r" "\n" | "\n"
+
+tokenizer         = <foreign tokenize-javascript Tok>
+End               = !(.)
+Space             = " " | "\t" | "\n" 
+Spaces            = Space* => [[ ignore ]]
+Name               = . ?[ ast-name?   ]?   => [[ value>> ]] 
+Number             = . ?[ ast-number? ]?
+String             = . ?[ ast-string? ]?
+RegExp             = . ?[ ast-regexp? ]?   
+SpacesNoNl         = (!(nl) Space)* => [[ ignore ]]
+
+Expr               =   OrExpr:e "?" Expr:t ":" Expr:f   => [[ e t f ast-cond-expr boa ]]
+                     | OrExpr:e "=" Expr:rhs            => [[ e rhs ast-set boa ]]
+                     | OrExpr:e "+=" Expr:rhs           => [[ e rhs "+" ast-mset boa ]]
+                     | OrExpr:e "-=" Expr:rhs           => [[ e rhs "-" ast-mset boa ]]
+                     | OrExpr:e "*=" Expr:rhs           => [[ e rhs "*" ast-mset boa ]]
+                     | OrExpr:e "/=" Expr:rhs           => [[ e rhs "/" ast-mset boa ]]
+                     | OrExpr:e "%=" Expr:rhs           => [[ e rhs "%" ast-mset boa ]]
+                     | OrExpr:e "&&=" Expr:rhs          => [[ e rhs "&&" ast-mset boa ]]
+                     | OrExpr:e "||=" Expr:rhs          => [[ e rhs "||" ast-mset boa ]]
+                     | OrExpr:e "^=" Expr:rhs           => [[ e rhs "^" ast-mset boa ]]
+                     | OrExpr:e "&=" Expr:rhs           => [[ e rhs "&" ast-mset boa ]]
+                     | OrExpr:e "|=" Expr:rhs           => [[ e rhs "|" ast-mset boa ]]
+                     | OrExpr:e "<<=" Expr:rhs          => [[ e rhs "<<" ast-mset boa ]]
+                     | OrExpr:e ">>=" Expr:rhs          => [[ e rhs ">>" ast-mset boa ]]
+                     | OrExpr:e ">>>=" Expr:rhs         => [[ e rhs ">>>" ast-mset boa ]]
+                     | OrExpr:e                         => [[ e ]]
+
+ExprNoIn           =   OrExprNoIn:e "?" ExprNoIn:t ":" ExprNoIn:f => [[ e t f ast-cond-expr boa ]]
+                     | OrExprNoIn:e "=" ExprNoIn:rhs              => [[ e rhs ast-set boa ]]
+                     | OrExprNoIn:e "+=" ExprNoIn:rhs             => [[ e rhs "+" ast-mset boa ]]
+                     | OrExprNoIn:e "-=" ExprNoIn:rhs             => [[ e rhs "-" ast-mset boa ]]
+                     | OrExprNoIn:e "*=" ExprNoIn:rhs             => [[ e rhs "*" ast-mset boa ]]
+                     | OrExprNoIn:e "/=" ExprNoIn:rhs             => [[ e rhs "/" ast-mset boa ]]
+                     | OrExprNoIn:e "%=" ExprNoIn:rhs             => [[ e rhs "%" ast-mset boa ]]
+                     | OrExprNoIn:e "&&=" ExprNoIn:rhs            => [[ e rhs "&&" ast-mset boa ]]
+                     | OrExprNoIn:e "||=" ExprNoIn:rhs            => [[ e rhs "||" ast-mset boa ]]
+                     | OrExprNoIn:e "^=" ExprNoIn:rhs             => [[ e rhs "^" ast-mset boa ]]
+                     | OrExprNoIn:e "&=" ExprNoIn:rhs             => [[ e rhs "&" ast-mset boa ]]
+                     | OrExprNoIn:e "|=" ExprNoIn:rhs             => [[ e rhs "|" ast-mset boa ]]
+                     | OrExprNoIn:e "<<=" ExprNoIn:rhs            => [[ e rhs "<<" ast-mset boa ]]
+                     | OrExprNoIn:e ">>=" ExprNoIn:rhs            => [[ e rhs ">>" ast-mset boa ]]
+                     | OrExprNoIn:e ">>>=" ExprNoIn:rhs           => [[ e rhs ">>>" ast-mset boa ]]
+                     | OrExprNoIn:e                               => [[ e ]]
+
+OrExpr             =   OrExpr:x "||" AndExpr:y          => [[ x y "||" ast-binop boa ]]
+                     | AndExpr
+OrExprNoIn         =   OrExprNoIn:x "||" AndExprNoIn:y  => [[ x y "||" ast-binop boa ]]
+                     | AndExprNoIn
+AndExpr            =   AndExpr:x "&&" BitOrExpr:y       => [[ x y "&&" ast-binop boa ]]
+                     | BitOrExpr
+AndExprNoIn        =   AndExprNoIn:x "&&" BitOrExprNoIn:y => [[ x y "&&" ast-binop boa ]]
+                     | BitOrExprNoIn
+BitOrExpr          =   BitOrExpr:x "|" BitXORExpr:y     => [[ x y "|" ast-binop boa ]]
+                     | BitXORExpr
+BitOrExprNoIn      =   BitOrExprNoIn:x "|" BitXORExprNoIn:y => [[ x y "|" ast-binop boa ]]
+                     | BitXORExprNoIn
+BitXORExpr         =   BitXORExpr:x "^" BitANDExpr:y    => [[ x y "^" ast-binop boa ]]
+                     | BitANDExpr
+BitXORExprNoIn     =   BitXORExprNoIn:x "^" BitANDExprNoIn:y => [[ x y "^" ast-binop boa ]]
+                     | BitANDExprNoIn
+BitANDExpr         =   BitANDExpr:x "&" EqExpr:y        => [[ x y "&" ast-binop boa ]]
+                     | EqExpr
+BitANDExprNoIn     =   BitANDExprNoIn:x "&" EqExprNoIn:y => [[ x y "&" ast-binop boa ]]
+                     | EqExprNoIn
+EqExpr             =   EqExpr:x "==" RelExpr:y          => [[ x y "==" ast-binop boa ]]
+                     | EqExpr:x "!=" RelExpr:y          => [[ x y "!=" ast-binop boa ]]
+                     | EqExpr:x "===" RelExpr:y         => [[ x y "===" ast-binop boa ]]
+                     | EqExpr:x "!==" RelExpr:y         => [[ x y "!==" ast-binop boa ]]
+                     | RelExpr
+EqExprNoIn         =   EqExprNoIn:x "==" RelExprNoIn:y    => [[ x y "==" ast-binop boa ]]
+                     | EqExprNoIn:x "!=" RelExprNoIn:y    => [[ x y "!=" ast-binop boa ]]
+                     | EqExprNoIn:x "===" RelExprNoIn:y   => [[ x y "===" ast-binop boa ]]
+                     | EqExprNoIn:x "!==" RelExprNoIn:y   => [[ x y "!==" ast-binop boa ]]
+                     | RelExprNoIn
+RelExpr            =   RelExpr:x ">" ShiftExpr:y          => [[ x y ">" ast-binop boa ]]
+                     | RelExpr:x ">=" ShiftExpr:y         => [[ x y ">=" ast-binop boa ]]
+                     | RelExpr:x "<" ShiftExpr:y          => [[ x y "<" ast-binop boa ]]
+                     | RelExpr:x "<=" ShiftExpr:y         => [[ x y "<=" ast-binop boa ]]
+                     | RelExpr:x "instanceof" ShiftExpr:y => [[ x y "instanceof" ast-binop boa ]]
+                     | RelExpr:x "in" ShiftExpr:y         => [[ x y "in" ast-binop boa ]]
+                     | ShiftExpr
+RelExprNoIn        =   RelExprNoIn:x ">" ShiftExpr:y          => [[ x y ">" ast-binop boa ]]
+                     | RelExprNoIn:x ">=" ShiftExpr:y         => [[ x y ">=" ast-binop boa ]]
+                     | RelExprNoIn:x "<" ShiftExpr:y          => [[ x y "<" ast-binop boa ]]
+                     | RelExprNoIn:x "<=" ShiftExpr:y         => [[ x y "<=" ast-binop boa ]]
+                     | RelExprNoIn:x "instanceof" ShiftExpr:y => [[ x y "instanceof" ast-binop boa ]]
+                     | ShiftExpr
+ShiftExpr          =   ShiftExpr:x "<<" AddExpr:y       => [[ x y "<<" ast-binop boa ]]
+                     | ShiftExpr:x ">>>" AddExpr:y      => [[ x y ">>>" ast-binop boa ]]
+                     | ShiftExpr:x ">>" AddExpr:y       => [[ x y ">>" ast-binop boa ]]
+                     | AddExpr
+AddExpr            =   AddExpr:x "+" MulExpr:y          => [[ x y "+" ast-binop boa ]]
+                     | AddExpr:x "-" MulExpr:y          => [[ x y "-" ast-binop boa ]]
+                     | MulExpr
+MulExpr            =   MulExpr:x "*" Unary:y            => [[ x y "*" ast-binop boa ]]
+                     | MulExpr:x "/" Unary:y            => [[ x y "/" ast-binop boa ]]
+                     | MulExpr:x "%" Unary:y            => [[ x y "%" ast-binop boa ]]
+                     | Unary
+Unary              =   "-" Unary:p                      => [[ p "-" ast-unop boa ]]
+                     | "+" Unary:p                      => [[ p ]]
+                     | "++" Unary:p                     => [[ p "++" ast-preop boa ]]
+                     | "--" Unary:p                     => [[ p "--" ast-preop boa ]]
+                     | "!" Unary:p                      => [[ p "!" ast-unop boa ]]
+                     | "typeof" Unary:p                 => [[ p "typeof" ast-unop boa ]]
+                     | "void" Unary:p                   => [[ p "void" ast-unop boa ]]
+                     | "delete" Unary:p                 => [[ p "delete" ast-unop boa ]]
+                     | Postfix
+Postfix            =   PrimExpr:p SpacesNoNl "++"       => [[ p "++" ast-postop boa ]]
+                     | PrimExpr:p SpacesNoNl "--"       => [[ p "--" ast-postop boa ]]
+                     | PrimExpr
+Args               =   (Expr ("," Expr => [[ second ]])* => [[ first2 swap prefix ]])?
+PrimExpr           =   PrimExpr:p "[" Expr:i "]"             => [[ i p ast-getp boa ]]
+                     | PrimExpr:p "." Name:m "(" Args:as ")" => [[ m p as ast-send boa ]]
+                     | PrimExpr:p "." Name:f                 => [[ f p ast-getp boa ]]
+                     | PrimExpr:p "(" Args:as ")"            => [[ p as ast-call boa ]]
+                     | PrimExprHd
+PrimExprHd         =   "(" Expr:e ")"                        => [[ e ]]
+                     | "this"                                => [[ ast-this boa ]]
+                     | Name                                  => [[ ast-get boa ]]
+                     | Number
+                     | String
+                     | RegExp
+                     | "function" FuncRest:fr                => [[ fr ]]
+                     | "new" PrimExpr:n "(" Args:as ")"      => [[ n as ast-new boa ]]
+                     | "new" PrimExpr:n                      => [[ n f  ast-new boa ]]
+                     | "[" Args:es "]"                       => [[ es ast-array boa ]]
+                     | Json
+JsonBindings       = (JsonBinding ("," JsonBinding => [[ second ]])* => [[ first2 swap prefix ]])?
+Json               = "{" JsonBindings:bs "}"                  => [[ bs ast-json boa ]]
+JsonBinding        = JsonPropName:n ":" Expr:v               => [[ n v ast-binding boa ]]
+JsonPropName       = Name | Number | String | RegExp
+Formal             = Spaces Name
+Formals            = (Formal ("," Formal => [[ second ]])*  => [[ first2 swap prefix ]])?
+FuncRest           = "(" Formals:fs ")" "{" SrcElems:body "}" => [[ fs body ast-func boa ]]
+Sc                 = SpacesNoNl (nl | &("}") | End)| ";"
+Binding            =   Name:n "=" Expr:v                      => [[ n v ast-var boa ]]
+                     | Name:n                                 => [[ n "undefined" ast-get boa ast-var boa ]]
+Block              = "{" SrcElems:ss "}"                      => [[ ss ]]
+Bindings           = (Binding ("," Binding => [[ second ]])* => [[ first2 swap prefix ]])?
+For1               =   "var" Bindings => [[ second ]] 
+                     | ExprNoIn 
+                     | Spaces => [[ "undefined" ast-get boa ]] 
+For2               =   Expr
+                     | Spaces => [[ "true" ast-get boa ]] 
+For3               =   Expr
+                     | Spaces => [[ "undefined" ast-get boa ]] 
+ForIn1             =   "var" Name:n => [[ n "undefined" ast-get boa ast-var boa ]]
+                     | PrimExprHd
+Switch1            =   "case" Expr:c ":" SrcElems:cs => [[ c cs ast-case boa ]]
+                     | "default" ":" SrcElems:cs => [[ cs ast-default boa ]]  
+SwitchBody         = Switch1*
+Finally            =   "finally" Block:b => [[ b ]]
+                     | Spaces => [[ "undefined" ast-get boa ]]
+Stmt               =   Block                     
+                     | "var" Bindings:bs Sc                   => [[ bs ast-begin boa ]]
+                     | "if" "(" Expr:c ")" Stmt:t "else" Stmt:f => [[ c t f ast-if boa ]]
+                     | "if" "(" Expr:c ")" Stmt:t               => [[ c t "undefined" ast-get boa ast-if boa ]]
+                     | "while" "(" Expr:c ")" Stmt:s            => [[ c s ast-while boa ]]
+                     | "do" Stmt:s "while" "(" Expr:c ")" Sc    => [[ s c ast-do-while boa ]]
+                     | "for" "(" For1:i ";" For2:c ";" For3:u ")" Stmt:s => [[ i c u s ast-for boa ]]
+                     | "for" "(" ForIn1:v "in" Expr:e ")" Stmt:s => [[ v e s ast-for-in boa ]]
+                     | "switch" "(" Expr:e ")" "{" SwitchBody:cs "}" => [[ e cs ast-switch boa ]]
+                     | "break" Sc                                    => [[ ast-break boa ]]
+                     | "continue" Sc                                 => [[ ast-continue boa ]]
+                     | "throw" SpacesNoNl Expr:e Sc                  => [[ e ast-throw boa ]]
+                     | "try" Block:t "catch" "(" Name:e ")" Block:c Finally:f => [[ t e c f ast-try boa ]]
+                     | "return" Expr:e Sc                            => [[ e ast-return boa ]]
+                     | "return" Sc                                   => [[ "undefined" ast-get boa ast-return boa ]]
+                     | "with" "(" Expr:e ")" Stmt:b                  => [[ e b ast-with boa ]]
+                     | Expr:e Sc                                     => [[ e ]]
+                     | ";"                                           => [[ "undefined" ast-get boa ]]
+SrcElem            =   "function" Name:n FuncRest:f                  => [[ n f ast-var boa ]]
+                     | Stmt
+SrcElems           = SrcElem*                                      => [[ ast-begin boa ]]
+TopLevel           = SrcElems Spaces                               
+;EBNF
\ No newline at end of file
diff --git a/extra/peg/javascript/parser/summary.txt b/extra/peg/javascript/parser/summary.txt
new file mode 100644
index 0000000000..bae5a461d2
--- /dev/null
+++ b/extra/peg/javascript/parser/summary.txt
@@ -0,0 +1 @@
+JavaScript Parser
diff --git a/extra/peg/javascript/parser/tags.txt b/extra/peg/javascript/parser/tags.txt
new file mode 100644
index 0000000000..c2aac2932f
--- /dev/null
+++ b/extra/peg/javascript/parser/tags.txt
@@ -0,0 +1,3 @@
+text
+javascript
+parsing
diff --git a/extra/peg/javascript/summary.txt b/extra/peg/javascript/summary.txt
new file mode 100644
index 0000000000..12f092dcf7
--- /dev/null
+++ b/extra/peg/javascript/summary.txt
@@ -0,0 +1 @@
+JavaScript parser
diff --git a/extra/peg/javascript/tags.txt b/extra/peg/javascript/tags.txt
new file mode 100644
index 0000000000..c2aac2932f
--- /dev/null
+++ b/extra/peg/javascript/tags.txt
@@ -0,0 +1,3 @@
+text
+javascript
+parsing
diff --git a/extra/ogg/theora/authors.txt b/extra/peg/javascript/tokenizer/authors.txt
similarity index 100%
rename from extra/ogg/theora/authors.txt
rename to extra/peg/javascript/tokenizer/authors.txt
diff --git a/extra/peg/javascript/tokenizer/summary.txt b/extra/peg/javascript/tokenizer/summary.txt
new file mode 100644
index 0000000000..ce94386ed9
--- /dev/null
+++ b/extra/peg/javascript/tokenizer/summary.txt
@@ -0,0 +1 @@
+Tokenizer for JavaScript language
diff --git a/extra/peg/javascript/tokenizer/tags.txt b/extra/peg/javascript/tokenizer/tags.txt
new file mode 100644
index 0000000000..c2aac2932f
--- /dev/null
+++ b/extra/peg/javascript/tokenizer/tags.txt
@@ -0,0 +1,3 @@
+text
+javascript
+parsing
diff --git a/extra/peg/javascript/tokenizer/tokenizer-tests.factor b/extra/peg/javascript/tokenizer/tokenizer-tests.factor
new file mode 100644
index 0000000000..f0080a31b2
--- /dev/null
+++ b/extra/peg/javascript/tokenizer/tokenizer-tests.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+!
+USING: kernel tools.test peg peg.javascript.ast peg.javascript.tokenizer accessors ;
+IN: peg.javascript.tokenizer.tests
+
+\ tokenize-javascript must-infer
+
+{
+  V{
+    T{ ast-number f 123 }
+    ";"
+    T{ ast-string f "hello" }
+    ";"
+    T{ ast-name f "foo" }
+    "("
+    T{ ast-name f "x" }
+    ")"
+    ";"
+  }    
+} [
+  "123; 'hello'; foo(x);" tokenize-javascript
+] unit-test
+
+{ V{ T{ ast-regexp f "<(w+)[^>]*?)/>" "g" } } } [
+  "/<(\\w+)[^>]*?)\\/>/g" tokenize-javascript
+] unit-test
\ No newline at end of file
diff --git a/extra/peg/javascript/tokenizer/tokenizer.factor b/extra/peg/javascript/tokenizer/tokenizer.factor
new file mode 100644
index 0000000000..30a3b5e7a5
--- /dev/null
+++ b/extra/peg/javascript/tokenizer/tokenizer.factor
@@ -0,0 +1,80 @@
+! Copyright (C) 2008 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences strings arrays math.parser peg peg.ebnf peg.javascript.ast ;
+IN: peg.javascript.tokenizer
+
+#! Grammar for JavaScript. Based on OMeta-JS example from:
+#! http://jarrett.cs.ucla.edu/ometa-js/#JavaScript_Compiler 
+
+USE: prettyprint
+
+EBNF: tokenize-javascript 
+Letter            = [a-zA-Z]
+Digit             = [0-9]
+Digits            = Digit+
+SingleLineComment = "//" (!("\n") .)* "\n" => [[ ignore ]]
+MultiLineComment  = "/*" (!("*/") .)* "*/" => [[ ignore ]]
+Space             = " " | "\t" | "\r" | "\n" | SingleLineComment | MultiLineComment
+Spaces            = Space* => [[ ignore ]]
+NameFirst         = Letter | "$" => [[ CHAR: $ ]] | "_" => [[ CHAR: _ ]]
+NameRest          = NameFirst | Digit
+iName             = NameFirst NameRest* => [[ first2 swap prefix >string ]]
+Keyword           =  ("break"
+                    | "case"
+                    | "catch"
+                    | "continue"
+                    | "default"
+                    | "delete"
+                    | "do"
+                    | "else"
+                    | "finally"
+                    | "for"
+                    | "function"
+                    | "if"
+                    | "in"
+                    | "instanceof"
+                    | "new"
+                    | "return"
+                    | "switch"
+                    | "this"
+                    | "throw"
+                    | "try"
+                    | "typeof"
+                    | "var"
+                    | "void"
+                    | "while"
+                    | "with") !(NameRest) 
+Name              = !(Keyword) iName  => [[ ast-name boa ]]
+Number            =   Digits:ws '.' Digits:fs => [[ ws "." fs 3array concat >string string>number ast-number boa ]]
+                    | Digits => [[ >string string>number ast-number boa ]]  
+
+EscapeChar        =   "\\n" => [[ 10 ]] 
+                    | "\\r" => [[ 13 ]]
+                    | "\\t" => [[ 9 ]]
+StringChars1       = (EscapeChar | !('"""') .)* => [[ >string ]]
+StringChars2       = (EscapeChar | !('"') .)* => [[ >string ]]
+StringChars3       = (EscapeChar | !("'") .)* => [[ >string ]]
+Str                =   '"""' StringChars1:cs '"""' => [[ cs ast-string boa ]]
+                     | '"' StringChars2:cs '"' => [[ cs ast-string boa ]]
+                     | "'" StringChars3:cs "'" => [[ cs ast-string boa ]]
+RegExpFlags        = NameRest* => [[ >string ]]
+NonTerminator      = !("\n" | "\r") .
+BackslashSequence  = "\\" NonTerminator => [[ second ]]
+RegExpFirstChar    =   !("*" | "\\" | "/") NonTerminator
+                     | BackslashSequence
+RegExpChar         =   !("\\" | "/") NonTerminator
+                     | BackslashSequence
+RegExpChars        = RegExpChar*
+RegExpBody         = RegExpFirstChar RegExpChars => [[ first2 swap prefix >string ]]
+RegExp             = "/" RegExpBody:b "/" RegExpFlags:fl => [[ b fl ast-regexp boa ]]
+Special            =   "("    | ")"   | "{"   | "}"   | "["   | "]"   | ","   | ";"
+                     | "?"    | ":"   | "!==" | "!="  | "===" | "=="  | "="   | ">="
+                     | ">>>=" | ">>>" | ">>=" | ">>"  | ">"   | "<="  | "<<=" | "<<"
+                     | "<"    | "++"  | "+="  | "+"   | "--"  | "-="  | "-"   | "*="
+                     | "*"    | "/="  | "/"   | "%="  | "%"   | "&&=" | "&&"  | "||="
+                     | "||"   | "."   | "!"   | "&="  | "&"   | "|="  | "|"   | "^="
+                     | "^"
+Tok                = Spaces (Name | Keyword | Number | Str | RegExp | Special )
+Toks               = Tok* Spaces 
+;EBNF
+
diff --git a/extra/peg/parsers/parsers-tests.factor b/extra/peg/parsers/parsers-tests.factor
deleted file mode 100644
index e80baf3c4f..0000000000
--- a/extra/peg/parsers/parsers-tests.factor
+++ /dev/null
@@ -1,54 +0,0 @@
-USING: kernel peg peg.parsers tools.test ;
-IN: peg.parsers.tests
-
-[ V{ "a" } ]
-[ "a" "a" token "," token list-of parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "a,a,a,a" "a" token "," token list-of parse parse-result-ast ] unit-test
-
-[ f ]
-[ "a" "a" token "," token list-of-many parse ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "a,a,a,a" "a" token "," token list-of-many parse parse-result-ast ] unit-test
-
-[ f ]
-[ "aaa" "a" token 4 exactly-n parse ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "aaaa" "a" token 4 exactly-n parse parse-result-ast ] unit-test
-
-[ f ]
-[ "aaa" "a" token 4 at-least-n parse ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "aaaa" "a" token 4 at-least-n parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" "a" "a" } ]
-[ "aaaaa" "a" token 4 at-least-n parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "aaaa" "a" token 4 at-most-n parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "aaaaa" "a" token 4 at-most-n parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" } ]
-[ "aaa" "a" token 3 4 from-m-to-n parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "aaaa" "a" token 3 4 from-m-to-n parse parse-result-ast ] unit-test
-
-[ V{ "a" "a" "a" "a" } ]
-[ "aaaaa" "a" token 3 4 from-m-to-n parse parse-result-ast ] unit-test
-
-[ 97 ]
-[ "a" any-char parse parse-result-ast ] unit-test
-
-[ V{ } ]
-[ "" epsilon parse parse-result-ast ] unit-test
-
-{ "a" } [
-  "a" "a" token just parse parse-result-ast
-] unit-test
\ No newline at end of file
diff --git a/extra/peg/pl0/pl0-tests.factor b/extra/peg/pl0/pl0-tests.factor
index e1d97bdef9..e84d37e5d4 100644
--- a/extra/peg/pl0/pl0-tests.factor
+++ b/extra/peg/pl0/pl0-tests.factor
@@ -6,39 +6,39 @@ USING: kernel tools.test peg peg.ebnf peg.pl0
 IN: peg.pl0.tests
 
 { t } [
-  "CONST foo = 1;" "block" \ pl0 rule parse remaining>> empty? 
+  "CONST foo = 1;" "block" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "VAR foo;" "block" \ pl0 rule parse remaining>> empty?
+  "VAR foo;" "block" \ pl0 rule (parse) remaining>> empty?
 ] unit-test
 
 { t } [
-  "VAR foo,bar , baz;" "block" \ pl0 rule parse remaining>> empty? 
+  "VAR foo,bar , baz;" "block" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "foo := 5" "statement" \ pl0 rule parse remaining>> empty? 
+  "foo := 5" "statement" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "BEGIN foo := 5 END" "statement" \ pl0 rule parse remaining>> empty? 
+  "BEGIN foo := 5 END" "statement" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "IF 1=1 THEN foo := 5" "statement" \ pl0 rule parse remaining>> empty? 
+  "IF 1=1 THEN foo := 5" "statement" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "WHILE 1=1 DO foo := 5" "statement" \ pl0 rule parse remaining>> empty? 
+  "WHILE 1=1 DO foo := 5" "statement" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "WHILE ODD 1 DO foo := 5" "statement" \ pl0 rule parse remaining>> empty? 
+  "WHILE ODD 1 DO foo := 5" "statement" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
-  "PROCEDURE square; BEGIN squ:=x*x END" "block" \ pl0 rule parse remaining>> empty? 
+  "PROCEDURE square; BEGIN squ:=x*x END" "block" \ pl0 rule (parse) remaining>> empty? 
 ] unit-test
 
 { t } [
@@ -58,7 +58,7 @@ BEGIN
       x := x + 1;
    END
 END.
-"> pl0 remaining>> empty?
+"> main \ pl0 rule (parse) remaining>> empty?
 ] unit-test
 
 { f } [
@@ -124,5 +124,5 @@ BEGIN
   y := 36;
   CALL gcd;
 END.
-  "> pl0 remaining>> empty?
+  "> main \ pl0 rule (parse) remaining>> empty?
 ] unit-test
\ No newline at end of file
diff --git a/extra/porter-stemmer/porter-stemmer.factor b/extra/porter-stemmer/porter-stemmer.factor
index 9a2a08bcbe..7ae273f20a 100644
--- a/extra/porter-stemmer/porter-stemmer.factor
+++ b/extra/porter-stemmer/porter-stemmer.factor
@@ -163,11 +163,11 @@ USING: kernel math parser sequences combinators splitting ;
     } cond ;
 
 : -ion ( str -- newstr )
-    dup empty? [
-        drop "ion"
+    [
+        "ion"
     ] [
         dup "st" last-is? [ "ion" append ] unless
-    ] if ;
+    ] if-empty ;
 
 : step4 ( str -- newstr )
     dup {
diff --git a/extra/pos/pos.factor b/extra/pos/pos.factor
index 24c5410e99..38eb8dec96 100644
--- a/extra/pos/pos.factor
+++ b/extra/pos/pos.factor
@@ -1,5 +1,6 @@
 
-USING: kernel math math.functions math.vectors sequences self ;
+USING: kernel math math.functions math.vectors sequences self
+accessors ;
 
 IN: pos
 
@@ -9,13 +10,13 @@ TUPLE: pos val ;
 
 C: <pos> pos
 
-: pos> ( -- val ) self> pos-val ;
+: pos> ( -- val ) self> val>> ;
 
-: >pos ( val -- ) self> set-pos-val ;
+: >pos ( val -- ) self> (>>val) ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: distance ( pos pos -- n ) pos-val swap pos-val v- [ sq ] map sum sqrt ;
+: distance ( pos pos -- n ) val>> swap val>> v- [ sq ] map sum sqrt ;
 
 : move-by ( point -- ) pos> v+ >pos ;
 
diff --git a/extra/processing/color/color.factor b/extra/processing/color/color.factor
deleted file mode 100644
index 50d20fcf52..0000000000
--- a/extra/processing/color/color.factor
+++ /dev/null
@@ -1,22 +0,0 @@
-
-USING: kernel sequences ;
-
-IN: processing.color
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-TUPLE: rgba red green blue alpha ;
-
-C: <rgba> rgba
-
-: <rgb> ( r g b -- rgba ) 1 <rgba> ;
-
-: <gray> ( gray -- rgba ) dup dup 1 <rgba> ;
-
-: {rgb} ( seq -- rgba ) first3 <rgb> ;
-
-! : hex>rgba ( hex -- rgba )
-
-! : set-gl-color ( color -- )
-!   { [ red>> ] [ green>> ] [ blue>> ] [ alpha>> ] } cleave glColor4d ;
-
diff --git a/extra/processing/gadget/gadget.factor b/extra/processing/gadget/gadget.factor
index bac3f8ac6d..0b3bb6dc01 100644
--- a/extra/processing/gadget/gadget.factor
+++ b/extra/processing/gadget/gadget.factor
@@ -1,25 +1,14 @@
 
 USING: kernel namespaces combinators
-       ui.gestures qualified accessors ui.gadgets.frame-buffer ;
+       ui.gestures accessors ui.gadgets.frame-buffer ;
 
 IN: processing.gadget
 
-QUALIFIED: ui.gadgets
-
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-TUPLE: processing-gadget button-down button-up key-down key-up ;
+TUPLE: processing-gadget < frame-buffer button-down button-up key-down key-up ;
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: set-gadget-delegate ( tuple gadget -- tuple )
-  over ui.gadgets:set-gadget-delegate ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: <processing-gadget> ( -- gadget )
-  processing-gadget new
-    <frame-buffer> set-gadget-delegate ;
+: <processing-gadget> ( -- gadget ) processing-gadget new-frame-buffer ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -37,13 +26,13 @@ SYMBOL: key-value
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-M: processing-gadget handle-gesture* ( gadget gesture delegate -- ? )
-   rot drop swap         ! delegate gesture
+M: processing-gadget handle-gesture ( gesture gadget -- ? )
+   swap
    {
      {
        [ dup key-down? ]
        [
-         key-down-sym key-value set
+         sym>> key-value set
          key-pressed-value on
          key-down>> dup [ call ] [ drop ] if
          t
@@ -60,7 +49,7 @@ M: processing-gadget handle-gesture* ( gadget gesture delegate -- ? )
      {
        [ dup button-down? ]
        [
-         button-down-# button-value set
+         #>> button-value set
          mouse-pressed-value on
          button-down>> dup [ call ] [ drop ] if
          t
@@ -77,4 +66,4 @@ M: processing-gadget handle-gesture* ( gadget gesture delegate -- ? )
      }
      { [ t ] [ 2drop t ] }
    }
-   cond ;
\ No newline at end of file
+   cond ;
diff --git a/extra/processing/gallery/trails/trails.factor b/extra/processing/gallery/trails/trails.factor
index 5abe23bb90..a5b2b7b02a 100644
--- a/extra/processing/gallery/trails/trails.factor
+++ b/extra/processing/gallery/trails/trails.factor
@@ -1,6 +1,6 @@
 
 USING: kernel arrays sequences math math.order qualified
-       sequences.lib circular processing ui newfx ;
+       sequences.lib circular processing ui newfx processing.shapes ;
 
 IN: processing.gallery.trails
 
diff --git a/extra/processing/processing.factor b/extra/processing/processing.factor
index e089b15e7e..07b92fa8fd 100644
--- a/extra/processing/processing.factor
+++ b/extra/processing/processing.factor
@@ -1,7 +1,7 @@
 
 USING: kernel namespaces threads combinators sequences arrays
        math math.functions math.ranges random
-       opengl.gl opengl.glu vars multi-methods shuffle
+       opengl.gl opengl.glu vars multi-methods generalizations shuffle
        ui
        ui.gestures
        ui.gadgets
@@ -9,8 +9,9 @@ USING: kernel namespaces threads combinators sequences arrays
        combinators.lib
        combinators.cleave
        rewrite-closures fry accessors newfx
-       processing.color
-       processing.gadget ;
+       processing.gadget math.geometry.rect
+       processing.shapes
+       colors ;
        
 IN: processing
 
@@ -36,53 +37,34 @@ IN: processing
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-VAR: fill-color
-VAR: stroke-color
+GENERIC: canonical-color-value ( obj -- color )
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+METHOD: canonical-color-value { number } dup dup 1 rgba boa ;
 
-GENERIC: set-color ( value -- )
-
-METHOD: set-color { number } dup dup glColor3d ;
-
-METHOD: set-color { array }
+METHOD: canonical-color-value { array }
    dup length
    {
-     { 2 [ first2 >r dup dup r> glColor4d ] }
-     { 3 [ first3 glColor3d ] }
-     { 4 [ first4 glColor4d ] }
+     { 2 [ first2 >r dup dup r> rgba boa ] }
+     { 3 [ first3 1             rgba boa ] }
+     { 4 [ first4               rgba boa ] }
    }
    case ;
 
-METHOD: set-color { rgba }
-  { [ red>> ] [ green>> ] [ blue>> ] [ alpha>> ] } cleave glColor4d ;
+! METHOD: canonical-color-value { rgba }
+!   { [ red>> ] [ green>> ] [ blue>> ] [ alpha>> ] } cleave 4array ;
+
+METHOD: canonical-color-value { color } ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: fill   ( value -- )  >fill-color ;
-: stroke ( value -- ) >stroke-color ;
+: fill   ( value -- ) canonical-color-value >fill-color   ;
+: stroke ( value -- ) canonical-color-value >stroke-color ;
 
-: no-fill ( -- )
-  fill-color>
-    {
-      { [ dup number? ] [ 0 2array fill ] }
-      { [ t           ]
-        [
-          [ drop 0 ] [ length 1- ] [ ] tri set-nth
-        ] }
-    }
-  cond ;
+! : no-fill   ( -- ) 0 fill-color>   set-fourth ;
+! : no-stroke ( -- ) 0 stroke-color> set-fourth ;
 
-: no-stroke ( -- )
-  stroke-color>
-    {
-      { [ dup number? ] [ 0 2array stroke ] }
-      { [ t           ]
-        [
-          [ drop 0 ] [ length 1- ] [ ] tri set-nth
-        ] }
-    }
-  cond ;
+: no-fill   ( -- ) fill-color>   0 >>alpha drop ;
+: no-stroke ( -- ) stroke-color> 0 >>alpha drop ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -90,167 +72,93 @@ METHOD: set-color { rgba }
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: point* ( x y -- )
-  stroke-color> set-color
-  GL_POINTS glBegin
-    glVertex2d
-  glEnd ;
+! : quad-vertices ( x1 y1 x2 y2 x3 y3 x4 y4 -- )
+!   GL_POLYGON glBegin
+!     glVertex2d
+!     glVertex2d
+!     glVertex2d
+!     glVertex2d
+!   glEnd ;
 
-: point ( seq -- ) first2 point* ;
+! : quad ( x1 y1 x2 y2 x3 y3 x4 y4 -- )
 
-: line ( x1 y1 x2 y2 -- )
-  stroke-color> set-color
-  GL_LINES glBegin
-    glVertex2d
-    glVertex2d
-  glEnd ;
+!   8 ndup
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!   GL_FRONT_AND_BACK GL_FILL glPolygonMode
+!   fill-color> set-color
 
-: triangle ( x1 y1 x2 y2 x3 y3 -- )
-
-  GL_FRONT_AND_BACK GL_FILL glPolygonMode
-  fill-color> set-color
-
-  6 ndup
+!   quad-vertices
   
-  GL_TRIANGLES glBegin
-    glVertex2d
-    glVertex2d
-    glVertex2d
-  glEnd
+!   GL_FRONT_AND_BACK GL_LINE glPolygonMode
+!   stroke-color> set-color
 
-  GL_FRONT_AND_BACK GL_LINE glPolygonMode
-  stroke-color> set-color
-
-  GL_TRIANGLES glBegin
-    glVertex2d
-    glVertex2d
-    glVertex2d
-  glEnd ;
+!   quad-vertices ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: quad-vertices ( x1 y1 x2 y2 x3 y3 x4 y4 -- )
-  GL_POLYGON glBegin
-    glVertex2d
-    glVertex2d
-    glVertex2d
-    glVertex2d
-  glEnd ;
+! : ellipse-disk ( x y width height -- )
+!   glPushMatrix
+!     >r >r
+!     0 glTranslated
+!     r> r> 1 glScaled
+!     gluNewQuadric
+!       dup 0 0.5 20 1 gluDisk
+!     gluDeleteQuadric
+!   glPopMatrix ;
 
-: quad ( x1 y1 x2 y2 x3 y3 x4 y4 -- )
+! : ellipse-center ( x y width height -- )
 
-  8 ndup
+!   4dup
 
-  GL_FRONT_AND_BACK GL_FILL glPolygonMode
-  fill-color> set-color
+!   GL_FRONT_AND_BACK GL_FILL glPolygonMode
+!   stroke-color> set-color
 
-  quad-vertices
-  
-  GL_FRONT_AND_BACK GL_LINE glPolygonMode
-  stroke-color> set-color
+!   ellipse-disk
 
-  quad-vertices ;
+!   GL_FRONT_AND_BACK GL_FILL glPolygonMode
+!   fill-color> set-color
+
+!   [ 2 - ] bi@ ! [ stroke-width 1+ - ] bi@
+
+!   ellipse-disk ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: rect-vertices ( x y width height -- )
-  GL_POLYGON glBegin
-    [ 2drop                      glVertex2d ] 4keep
-    [ drop swap >r + 1- r>       glVertex2d ] 4keep
-    [ >r swap >r + 1- r> r> + 1- glVertex2d ] 4keep
-    [ nip + 1-                   glVertex2d ] 4keep
-    4drop
-  glEnd ;
+! SYMBOL: CENTER
+! SYMBOL: RADIUS
+! SYMBOL: CORNER
+! SYMBOL: CORNERS
 
-: rect ( x y width height -- )
+! SYMBOL: ellipse-mode-value
 
-  4dup
+! : ellipse-mode ( val -- ) ellipse-mode-value set ;
 
-  GL_FRONT_AND_BACK GL_FILL glPolygonMode
-  fill-color> set-color
+! : ellipse-radius ( x y hori vert -- ) [ 2 * ] bi@ ellipse-center ;
 
-  rect-vertices
+! : ellipse-corner ( x y width height -- )
+!   [ drop nip     2 / + ] 4keep
+!   [ nip rot drop 2 / + ] 4keep
+!   [ >r >r 2drop r> r>  ] 4keep
+!   4drop
+!   ellipse-center ;
 
-  GL_FRONT_AND_BACK GL_LINE glPolygonMode
-  stroke-color> set-color
+! : ellipse-corners ( x1 y1 x2 y2 -- )
+!   [ drop nip     + 2 /    ] 4keep
+!   [ nip rot drop + 2 /    ] 4keep
+!   [ drop nip     - abs 1+ ] 4keep
+!   [ nip rot drop - abs 1+ ] 4keep
+!   4drop
+!   ellipse-center ;
 
-  rect-vertices ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: ellipse-disk ( x y width height -- )
-  glPushMatrix
-    >r >r
-    0 glTranslated
-    r> r> 1 glScaled
-    gluNewQuadric
-      dup 0 0.5 20 1 gluDisk
-    gluDeleteQuadric
-  glPopMatrix ;
-
-: ellipse-center ( x y width height -- )
-
-  4dup
-
-  GL_FRONT_AND_BACK GL_FILL glPolygonMode
-  stroke-color> set-color
-
-  ellipse-disk
-
-  GL_FRONT_AND_BACK GL_FILL glPolygonMode
-  fill-color> set-color
-
-  [ 2 - ] bi@ ! [ stroke-width 1+ - ] bi@
-
-  ellipse-disk ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-SYMBOL: CENTER
-SYMBOL: RADIUS
-SYMBOL: CORNER
-SYMBOL: CORNERS
-
-SYMBOL: ellipse-mode-value
-
-: ellipse-mode ( val -- ) ellipse-mode-value set ;
-
-: ellipse-radius ( x y hori vert -- ) [ 2 * ] bi@ ellipse-center ;
-
-: ellipse-corner ( x y width height -- )
-  [ drop nip     2 / + ] 4keep
-  [ nip rot drop 2 / + ] 4keep
-  [ >r >r 2drop r> r>  ] 4keep
-  4drop
-  ellipse-center ;
-
-: ellipse-corners ( x1 y1 x2 y2 -- )
-  [ drop nip     + 2 /    ] 4keep
-  [ nip rot drop + 2 /    ] 4keep
-  [ drop nip     - abs 1+ ] 4keep
-  [ nip rot drop - abs 1+ ] 4keep
-  4drop
-  ellipse-center ;
-
-: ellipse ( a b c d -- )
-  ellipse-mode-value get
-    {
-      { CENTER  [ ellipse-center ] }
-      { RADIUS  [ ellipse-radius ] }
-      { CORNER  [ ellipse-corner ] }
-      { CORNERS [ ellipse-corners ] }
-    }
-  case ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: circle ( pos size -- ) [ first2 ] [ dup ] bi* ellipse ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-USING: multi-methods ;
+! : ellipse ( a b c d -- )
+!   ellipse-mode-value get
+!     {
+!       { CENTER  [ ellipse-center ] }
+!       { RADIUS  [ ellipse-radius ] }
+!       { CORNER  [ ellipse-corner ] }
+!       { CORNERS [ ellipse-corners ] }
+!     }
+!   case ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -279,8 +187,8 @@ METHOD: background { array }
 
 : mouse ( -- point ) hand-loc get ;
 
-: mouse-x mouse first  ;
-: mouse-y mouse second ;
+: mouse-x ( -- x ) mouse first  ;
+: mouse-y ( -- y ) mouse second ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -296,9 +204,7 @@ VAR: loop-flag
 
 : defaults ( -- )
   0.8    background
-  0      >stroke-color
-  1      >fill-color
-  CENTER ellipse-mode
+  ! CENTER ellipse-mode
   60 frame-rate ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -374,7 +280,7 @@ SYMBOL: setup-called
   500 sleep
 
   <processing-gadget>
-    size-val get >>dim
+    size-val get >>pdim
     dup "Processing" open-window
 
     500 sleep
diff --git a/extra/processing/shapes/shapes.factor b/extra/processing/shapes/shapes.factor
new file mode 100644
index 0000000000..f577010544
--- /dev/null
+++ b/extra/processing/shapes/shapes.factor
@@ -0,0 +1,116 @@
+
+USING: kernel namespaces arrays sequences grouping
+       alien.c-types
+       math math.vectors math.geometry.rect
+       opengl.gl opengl.glu opengl generalizations vars
+       combinators.cleave colors ;
+
+IN: processing.shapes
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+VAR: fill-color
+VAR: stroke-color
+
+T{ rgba f 0 0 0 1 } stroke-color set-global
+T{ rgba f 1 1 1 1 } fill-color   set-global
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: fill-mode ( -- )
+  GL_FRONT_AND_BACK GL_FILL glPolygonMode
+  fill-color> set-color ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: stroke-mode ( -- )
+  GL_FRONT_AND_BACK GL_LINE glPolygonMode
+  stroke-color> set-color ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: gl-vertex-2d ( vertex -- ) first2 glVertex2d ;
+
+: gl-vertices-2d ( vertices -- ) [ gl-vertex-2d ] each ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: point* ( x y    -- ) stroke-mode GL_POINTS [ glVertex2d     ] do-state ;
+: point  ( point  -- ) stroke-mode GL_POINTS [ gl-vertex-2d   ] do-state ;
+: points ( points -- ) stroke-mode GL_POINTS [ gl-vertices-2d ] do-state ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: line** ( x y x y -- )
+  stroke-mode GL_LINES [ glVertex2d glVertex2d ] do-state ;
+
+: line* ( a b -- ) stroke-mode GL_LINES [ [ gl-vertex-2d ] bi@ ] do-state ;
+
+: lines ( seq -- ) stroke-mode GL_LINES [ gl-vertices-2d ] do-state ;
+
+: line ( seq -- ) lines ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: line-strip ( seq -- ) stroke-mode GL_LINE_STRIP [ gl-vertices-2d ] do-state ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: triangles ( seq -- )
+  [ fill-mode   GL_TRIANGLES [ gl-vertices-2d ] do-state ]
+  [ stroke-mode GL_TRIANGLES [ gl-vertices-2d ] do-state ] bi ;
+
+: triangle ( seq -- ) triangles ;
+
+: triangle* ( a b c -- ) 3array triangles ;
+
+: triangle** ( x y x y x y -- ) 6 narray 2 group triangles ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: polygon ( seq -- )
+  [ fill-mode   GL_POLYGON [ gl-vertices-2d ] do-state ]
+  [ stroke-mode GL_POLYGON [ gl-vertices-2d ] do-state ] bi ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: rectangle ( loc dim -- )
+  <rect>
+    { top-left top-right bottom-right bottom-left }
+  1arr
+  polygon ;
+
+: rectangle* ( x y width height -- ) [ 2array ] 2bi@ rectangle ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: gl-translate-2d ( pos -- ) first2 0 glTranslated ;
+
+: gl-scale-2d ( xy -- ) first2 1 glScaled ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: gl-ellipse ( center dim -- )
+  glPushMatrix
+    [ gl-translate-2d ] [ gl-scale-2d ] bi*
+    gluNewQuadric
+      dup 0 0.5 20 1 gluDisk
+    gluDeleteQuadric
+  glPopMatrix ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: gl-get-line-width ( -- width )
+  GL_LINE_WIDTH 0 <double> tuck glGetDoublev *double ;
+
+: ellipse ( center dim -- )
+  GL_FRONT_AND_BACK GL_FILL glPolygonMode
+  [ stroke-color> set-color                                 gl-ellipse ]
+  [ fill-color> set-color gl-get-line-width 2 * dup 2array v- gl-ellipse ] 2bi ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: circle ( center size -- ) dup 2array ellipse ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/project-euler/001/001.factor b/extra/project-euler/001/001.factor
index 843f8b87ba..344b0f1209 100644
--- a/extra/project-euler/001/001.factor
+++ b/extra/project-euler/001/001.factor
@@ -19,8 +19,17 @@ IN: project-euler.001
 
 ! Inclusion-exclusion principle
 
+<PRIVATE
+
+: sum-divisible-by ( target n -- m )
+    [ /i dup 1+ * ] keep * 2 /i ;
+
+PRIVATE>
+
 : euler001 ( -- answer )
-    0 999 3 <range> sum 0 999 5 <range> sum + 0 999 15 <range> sum - ;
+    999 3 sum-divisible-by
+    999 5 sum-divisible-by +
+    999 15 sum-divisible-by - ;
 
 ! [ euler001 ] 100 ave-time
 ! 0 ms run / 0 ms GC ave time - 100 trials
@@ -30,9 +39,16 @@ IN: project-euler.001
 ! -------------------
 
 : euler001a ( -- answer )
-    1000 [ dup 5 mod swap 3 mod [ zero? ] either? ] filter sum ;
+    0 999 3 <range> sum 0 999 5 <range> sum + 0 999 15 <range> sum - ;
 
 ! [ euler001a ] 100 ave-time
 ! 0 ms run / 0 ms GC ave time - 100 trials
 
+
+: euler001b ( -- answer )
+    1000 [ dup 5 mod swap 3 mod [ zero? ] either? ] filter sum ;
+
+! [ euler001b ] 100 ave-time
+! 0 ms run / 0 ms GC ave time - 100 trials
+
 MAIN: euler001
diff --git a/extra/project-euler/002/002.factor b/extra/project-euler/002/002.factor
index 108f5c1e94..7bd77a2f68 100644
--- a/extra/project-euler/002/002.factor
+++ b/extra/project-euler/002/002.factor
@@ -40,7 +40,7 @@ PRIVATE>
 ! -------------------
 
 : fib-upto* ( n -- seq )
-    0 1 [ pick over >= ] [ tuck + dup ] [ ] unfold 3nip
+    0 1 [ pick over >= ] [ tuck + dup ] [ ] produce 3nip
     but-last-slice { 0 1 } prepend ;
 
 : euler002a ( -- answer )
diff --git a/extra/project-euler/007/007.factor b/extra/project-euler/007/007.factor
index 93754b69d1..04686a8328 100644
--- a/extra/project-euler/007/007.factor
+++ b/extra/project-euler/007/007.factor
@@ -1,6 +1,6 @@
 ! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: lazy-lists math math.primes ;
+USING: lists math math.primes ;
 IN: project-euler.007
 
 ! http://projecteuler.net/index.php?section=problems&id=7
diff --git a/extra/project-euler/011/011.factor b/extra/project-euler/011/011.factor
index 322c361ee0..a55c3ac124 100644
--- a/extra/project-euler/011/011.factor
+++ b/extra/project-euler/011/011.factor
@@ -1,6 +1,7 @@
 ! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel namespaces project-euler.common sequences splitting ;
+USING: kernel namespaces project-euler.common sequences
+splitting grouping ;
 IN: project-euler.011
 
 ! http://projecteuler.net/index.php?section=problems&id=11
diff --git a/extra/project-euler/014/014.factor b/extra/project-euler/014/014.factor
index 32b1aa5549..4f17e855b7 100644
--- a/extra/project-euler/014/014.factor
+++ b/extra/project-euler/014/014.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays combinators.lib kernel math math.ranges namespaces sequences
-    sorting ;
+USING: arrays combinators.lib combinators.short-circuit kernel math math.ranges
+    namespaces sequences sorting ;
 IN: project-euler.014
 
 ! http://projecteuler.net/index.php?section=problems&id=14
@@ -59,7 +59,7 @@ PRIVATE>
 <PRIVATE
 
 : worth-calculating? ( n -- ? )
-    { [ dup 1- 3 mod zero? ] [ dup 1- 3 / even? ] } && nip ;
+    { [ dup 1- 3 mod zero? ] [ dup 1- 3 / even? ] } 0&& nip ;
 
 PRIVATE>
 
diff --git a/extra/project-euler/017/017.factor b/extra/project-euler/017/017.factor
index ffff10d4fe..cf58e88ffe 100644
--- a/extra/project-euler/017/017.factor
+++ b/extra/project-euler/017/017.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math.ranges math.text.english sequences sequences.lib strings
-    ascii ;
+    ascii combinators.short-circuit ;
 IN: project-euler.017
 
 ! http://projecteuler.net/index.php?section=problems&id=17
diff --git a/extra/project-euler/019/019.factor b/extra/project-euler/019/019.factor
index 5006301c2b..b29495f913 100644
--- a/extra/project-euler/019/019.factor
+++ b/extra/project-euler/019/019.factor
@@ -53,7 +53,7 @@ IN: project-euler.019
 : first-days ( end-date start-date -- days )
     [ 2dup after=? ]
     [ dup 1 months time+ swap day-of-week ]
-    [ ] unfold 2nip ;
+    [ ] produce 2nip ;
 
 PRIVATE>
 
diff --git a/extra/project-euler/021/021.factor b/extra/project-euler/021/021.factor
index d8f81717af..9ae5f6af10 100644
--- a/extra/project-euler/021/021.factor
+++ b/extra/project-euler/021/021.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators.lib kernel math math.functions math.ranges namespaces
-    project-euler.common sequences sequences.lib ;
+USING: combinators.lib combinators.short-circuit kernel math math.functions
+    math.ranges namespaces project-euler.common sequences sequences.lib ;
 IN: project-euler.021
 
 ! http://projecteuler.net/index.php?section=problems&id=21
@@ -27,7 +27,7 @@ IN: project-euler.021
 
 : amicable? ( n -- ? )
     dup sum-proper-divisors
-    { [ 2dup = not ] [ 2dup sum-proper-divisors = ] } && 2nip ;
+    { [ 2dup = not ] [ 2dup sum-proper-divisors = ] } 0&& 2nip ;
 
 : euler021 ( -- answer )
     10000 [1,b] [ dup amicable? [ drop 0 ] unless ] sigma ;
diff --git a/extra/project-euler/028/028.factor b/extra/project-euler/028/028.factor
index 3ef65481ed..d0f3892956 100644
--- a/extra/project-euler/028/028.factor
+++ b/extra/project-euler/028/028.factor
@@ -1,6 +1,6 @@
 ! Copyright (c) 2008 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.ranges sequences.lib ;
+USING: kernel math math.ranges sequences ;
 IN: project-euler.028
 
 ! http://projecteuler.net/index.php?section=problems&id=28
diff --git a/extra/project-euler/032/032.factor b/extra/project-euler/032/032.factor
index 68b42ca442..8a54c595a9 100755
--- a/extra/project-euler/032/032.factor
+++ b/extra/project-euler/032/032.factor
@@ -31,11 +31,11 @@ IN: project-euler.032
 
 : 1and4 ( n -- ? )
     number>string 1 cut-slice 4 cut-slice
-    [ string>number ] 3apply [ * ] dip = ;
+    [ string>number ] tri@ [ * ] dip = ;
 
 : 2and3 ( n -- ? )
     number>string 2 cut-slice 3 cut-slice
-    [ string>number ] 3apply [ * ] dip = ;
+    [ string>number ] tri@ [ * ] dip = ;
 
 : valid? ( n -- ? )
     dup 1and4 swap 2and3 or ;
@@ -65,7 +65,7 @@ PRIVATE>
 
 ! multiplicand/multiplier/product
 : mmp ( pair -- n )
-    first2 2dup * [ number>string ] 3apply 3append string>number ;
+    first2 2dup * [ number>string ] tri@ 3append string>number ;
 
 PRIVATE>
 
diff --git a/extra/project-euler/036/036.factor b/extra/project-euler/036/036.factor
index 153901ce6d..f3a9f738bf 100644
--- a/extra/project-euler/036/036.factor
+++ b/extra/project-euler/036/036.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2008 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators.lib kernel math.parser math.ranges project-euler.common
-    sequences ;
+USING: combinators.lib combinators.short-circuit kernel math.parser math.ranges
+    project-euler.common sequences ;
 IN: project-euler.036
 
 ! http://projecteuler.net/index.php?section=problems&id=36
@@ -27,7 +27,7 @@ IN: project-euler.036
 
 : both-bases? ( n -- ? )
     { [ dup palindrome? ]
-      [ dup >bin dup reverse = ] } && nip ;
+      [ dup >bin dup reverse = ] } 0&& nip ;
 
 PRIVATE>
 
diff --git a/extra/project-euler/039/039.factor b/extra/project-euler/039/039.factor
old mode 100644
new mode 100755
index 9075b19324..7a9f51f1d3
--- a/extra/project-euler/039/039.factor
+++ b/extra/project-euler/039/039.factor
@@ -44,7 +44,7 @@ SYMBOL: p-count
     dup sum max-p < [
         dup sum adjust-p-count
         [ u-transform ] [ a-transform ] [ d-transform ] tri
-        [ (count-perimeters) ] 3apply
+        [ (count-perimeters) ] tri@
     ] [
         drop
     ] if ;
diff --git a/extra/project-euler/043/043.factor b/extra/project-euler/043/043.factor
index 41e378e531..a2f4ad5c61 100644
--- a/extra/project-euler/043/043.factor
+++ b/extra/project-euler/043/043.factor
@@ -1,7 +1,8 @@
 ! Copyright (c) 2008 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators.lib hashtables kernel math math.combinatorics math.parser
-    math.ranges project-euler.common sequences sequences.lib sorting sets ;
+USING: combinators.lib combinators.short-circuit hashtables kernel math
+    math.combinatorics math.parser math.ranges project-euler.common sequences
+    sequences.lib sorting sets ;
 IN: project-euler.043
 
 ! http://projecteuler.net/index.php?section=problems&id=43
@@ -47,7 +48,7 @@ IN: project-euler.043
         [ 5 4 pick subseq-divisible? ]
         [ 3 3 pick subseq-divisible? ]
         [ 2 2 pick subseq-divisible? ]
-    } && nip ;
+    } 0&& nip ;
 
 PRIVATE>
 
diff --git a/extra/project-euler/048/048.factor b/extra/project-euler/048/048.factor
index 011511c560..baa1a430e8 100644
--- a/extra/project-euler/048/048.factor
+++ b/extra/project-euler/048/048.factor
@@ -1,6 +1,6 @@
 ! Copyright (c) 2008 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.functions sequences.lib ;
+USING: kernel math math.functions sequences ;
 IN: project-euler.048
 
 ! http://projecteuler.net/index.php?section=problems&id=48
diff --git a/extra/project-euler/052/052.factor b/extra/project-euler/052/052.factor
index 3f6487fb3e..aec8015f94 100644
--- a/extra/project-euler/052/052.factor
+++ b/extra/project-euler/052/052.factor
@@ -1,6 +1,7 @@
 ! Copyright (c) 2008 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: combinators.lib kernel math project-euler.common sequences sorting ;
+USING: combinators.lib combinators.short-circuit kernel math
+    project-euler.common sequences sorting ;
 IN: project-euler.052
 
 ! http://projecteuler.net/index.php?section=problems&id=52
@@ -29,7 +30,7 @@ IN: project-euler.052
     [ number>digits natural-sort ] map all-equal? ;
 
 : candidate? ( n -- ? )
-    { [ dup odd? ] [ dup 3 mod zero? ] } && nip ;
+    { [ dup odd? ] [ dup 3 mod zero? ] } 0&& nip ;
 
 : next-all-same ( x n -- n )
     dup candidate? [
diff --git a/extra/project-euler/053/053.factor b/extra/project-euler/053/053.factor
index ae47440415..b2a50e4ac7 100644
--- a/extra/project-euler/053/053.factor
+++ b/extra/project-euler/053/053.factor
@@ -1,6 +1,6 @@
 ! Copyright (c) 2008 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.combinatorics math.ranges sequences.lib ;
+USING: kernel math math.combinatorics math.ranges sequences ;
 IN: project-euler.053
 
 ! http://projecteuler.net/index.php?section=problems&id=53
diff --git a/extra/project-euler/059/059.factor b/extra/project-euler/059/059.factor
index dceb01bd16..aa2cdb75b0 100644
--- a/extra/project-euler/059/059.factor
+++ b/extra/project-euler/059/059.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays ascii assocs hashtables io.encodings.ascii io.files kernel math
     math.parser namespaces sequences sequences.lib sequences.private sorting
-    splitting strings sets ;
+    splitting grouping strings sets accessors ;
 IN: project-euler.059
 
 ! http://projecteuler.net/index.php?section=problems&id=59
@@ -53,16 +53,16 @@ IN: project-euler.059
 
 : source-059 ( -- seq )
     "resource:extra/project-euler/059/cipher1.txt"
-    ascii file-contents [ blank? ] right-trim "," split
+    ascii file-contents [ blank? ] trim-right "," split
     [ string>number ] map ;
 
 TUPLE: rollover seq n ;
 
 C: <rollover> rollover
 
-M: rollover length rollover-n ;
+M: rollover length n>> ;
 
-M: rollover nth-unsafe rollover-seq [ length mod ] keep nth-unsafe ;
+M: rollover nth-unsafe seq>> [ length mod ] keep nth-unsafe ;
 
 INSTANCE: rollover immutable-sequence
 
diff --git a/extra/project-euler/075/075.factor b/extra/project-euler/075/075.factor
old mode 100644
new mode 100755
index 453ebfa129..8e5b849de5
--- a/extra/project-euler/075/075.factor
+++ b/extra/project-euler/075/075.factor
@@ -57,7 +57,7 @@ SYMBOL: p-count
     dup sum max-p < [
         dup sum adjust-p-count
         [ u-transform ] [ a-transform ] [ d-transform ] tri
-        [ (count-perimeters) ] 3apply
+        [ (count-perimeters) ] tri@
     ] [
         drop
     ] if ;
diff --git a/extra/project-euler/076/076.factor b/extra/project-euler/076/076.factor
index 782d6d0429..3530f2163a 100644
--- a/extra/project-euler/076/076.factor
+++ b/extra/project-euler/076/076.factor
@@ -1,7 +1,7 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs combinators kernel math sequences
-math.order math.ranges locals ;
+USING: arrays assocs combinators kernel locals math math.order math.ranges
+    sequences ;
 IN: project-euler.076
 
 ! http://projecteuler.net/index.php?section=problems&id=76
@@ -12,6 +12,7 @@ IN: project-euler.076
 ! How many different ways can one hundred be written as a
 ! sum of at least two positive integers?
 
+
 ! SOLUTION
 ! --------
 
@@ -43,12 +44,17 @@ IN: project-euler.076
 :: each-subproblem ( n quot -- )
     n [1,b] [ dup [1,b] quot with each ] each ; inline
 
-PRIVATE>
-
 : (euler076) ( n -- m )
     dup init
     [ [ ways ] curry each-subproblem ]
     [ [ dup 2array ] dip at 1- ] 2bi ;
 
-: euler076 ( -- m )
+PRIVATE>
+
+: euler076 ( -- answer )
     100 (euler076) ;
+
+! [ euler076 ] 100 ave-time
+! 704 ms run time - 100 trials
+
+MAIN: euler076
diff --git a/extra/project-euler/079/079.factor b/extra/project-euler/079/079.factor
index cde4dc079b..1e6a2fb0b4 100644
--- a/extra/project-euler/079/079.factor
+++ b/extra/project-euler/079/079.factor
@@ -35,8 +35,8 @@ IN: project-euler.079
     ] { } make ;
 
 : find-source ( seq -- elt )
-    [ keys ] [ values ] bi diff prune
-    dup empty? [ "Topological sort failed" throw ] [ first ] if ;
+    unzip diff prune
+    [ "Topological sort failed" throw ] [ first ] if-empty ;
 
 : remove-source ( seq elt -- seq )
     [ swap member? not ] curry filter ;
@@ -45,7 +45,7 @@ IN: project-euler.079
     dup length 1 > [
         dup find-source dup , remove-source (topological-sort)
     ] [
-        dup empty? [ drop ] [ first [ , ] each ] if
+        [ first [ , ] each ] unless-empty
     ] if ;
 
 PRIVATE>
diff --git a/extra/project-euler/100/100.factor b/extra/project-euler/100/100.factor
index d2d396a0e1..fca1bf8af8 100644
--- a/extra/project-euler/100/100.factor
+++ b/extra/project-euler/100/100.factor
@@ -1,7 +1,36 @@
-USING: kernel sequences math.functions math ;
+! Copyright (c) 2008 Eric Mertens.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math math.functions sequences ;
 IN: project-euler.100
 
-: euler100 ( -- n )
+! http://projecteuler.net/index.php?section=problems&id=100
+
+! DESCRIPTION
+! -----------
+
+! If a box contains twenty-one coloured discs, composed of fifteen blue discs
+! and six red discs, and two discs were taken at random, it can be seen that
+! the probability of taking two blue discs, P(BB) = (15/21)*(14/20) = 1/2.
+
+! The next such arrangement, for which there is exactly 50% chance of taking
+! two blue discs at random, is a box containing eighty-five blue discs and
+! thirty-five red discs.
+
+! By finding the first arrangement to contain over 10^12 = 1,000,000,000,000
+! discs in total, determine the number of blue discs that the box would contain.
+
+
+! SOLUTION
+! --------
+
+: euler100 ( -- answer )
     1 1
     [ dup dup 1- * 2 * 10 24 ^ <= ]
     [ tuck 6 * swap - 2 - ] [ ] while nip ;
+
+! TODO: solution is incredibly slow (>30 minutes) and needs generalization
+
+! [ euler100 ] time
+! ? ms run time
+
+MAIN: euler100
diff --git a/extra/project-euler/116/116.factor b/extra/project-euler/116/116.factor
index d48cdf175c..5e2059ad9a 100644
--- a/extra/project-euler/116/116.factor
+++ b/extra/project-euler/116/116.factor
@@ -1,7 +1,6 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math math.ranges sequences sequences.lib ;
-
 IN: project-euler.116
 
 ! http://projecteuler.net/index.php?section=problems&id=116
@@ -24,6 +23,7 @@ IN: project-euler.116
 ! length be replaced if colours cannot be mixed and at least one coloured tile
 ! must be used?
 
+
 ! SOLUTION
 ! --------
 
@@ -46,10 +46,15 @@ IN: project-euler.116
 : ways ( length colortile -- permutations )
     V{ 1 } clone [ [ next ] 2curry times ] keep peek 1- ;
 
-PRIVATE>
-
 : (euler116) ( length -- permutations )
     3 [1,b] [ ways ] with sigma ;
 
-: euler116 ( -- permutations )
+PRIVATE>
+
+: euler116 ( -- answer )
     50 (euler116) ;
+
+! [ euler116 ] 100 ave-time
+! 0 ms run time - 100 trials
+
+MAIN: euler116
diff --git a/extra/project-euler/117/117.factor b/extra/project-euler/117/117.factor
index 3a05261710..cc5dea8f37 100644
--- a/extra/project-euler/117/117.factor
+++ b/extra/project-euler/117/117.factor
@@ -1,7 +1,6 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.order splitting sequences ;
-
+USING: kernel math math.order sequences splitting ;
 IN: project-euler.117
 
 ! http://projecteuler.net/index.php?section=problems&id=117
@@ -14,7 +13,8 @@ IN: project-euler.117
 ! units, and blue tiles measuring four units, it is possible to tile a
 ! row measuring five units in length in exactly fifteen different ways.
 
-!  How many ways can a row measuring fifty units in length be tiled?
+! How many ways can a row measuring fifty units in length be tiled?
+
 
 ! SOLUTION
 ! --------
@@ -33,10 +33,15 @@ IN: project-euler.117
 : next ( seq -- )
     [ 4 short tail* sum ] keep push ;
 
-PRIVATE>
-
 : (euler117) ( n -- m )
     V{ 1 } clone tuck [ next ] curry times peek ;
 
-: euler117 ( -- m )
+PRIVATE>
+
+: euler117 ( -- answer )
     50 (euler117) ;
+
+! [ euler117 ] 100 ave-time
+! 0 ms run time - 100 trials
+
+MAIN: euler117
diff --git a/extra/project-euler/134/134.factor b/extra/project-euler/134/134.factor
index 11af1960ed..4e54a18f19 100644
--- a/extra/project-euler/134/134.factor
+++ b/extra/project-euler/134/134.factor
@@ -1,6 +1,6 @@
 ! Copyright (c) 2007 Samuel Tardieu.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel lazy-lists math.algebra math math.functions
+USING: arrays kernel lists lists.lazy math.algebra math math.functions
     math.order math.primes math.ranges project-euler.common sequences ;
 IN: project-euler.134
 
@@ -39,7 +39,7 @@ IN: project-euler.134
 PRIVATE>
 
 : euler134 ( -- answer )
-    0 5 lprimes-from uncons [ 1000000 > ] luntil
+    0 5 lprimes-from uncons swap [ 1000000 > ] luntil
     [ [ s + ] keep ] leach drop ;
 
 ! [ euler134 ] 10 ave-time
diff --git a/extra/project-euler/148/148.factor b/extra/project-euler/148/148.factor
index daad89a40c..49fd9a4895 100644
--- a/extra/project-euler/148/148.factor
+++ b/extra/project-euler/148/148.factor
@@ -1,24 +1,54 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math math.functions sequences sequences.lib ;
-
 IN: project-euler.148
 
+! http://projecteuler.net/index.php?section=problems&id=148
+
+! DESCRIPTION
+! -----------
+
+! We can easily verify that none of the entries in the first seven rows of
+! Pascal's triangle are divisible by 7:
+
+!                             1
+!                         1       1
+!                     1       2       1
+!                 1       3       3       1
+!             1       4       6       4       1
+!         1       5      10      10       5       1
+!    1        6      15      20      15       6       1
+
+! However, if we check the first one hundred rows, we will find that only 2361
+! of the 5050 entries are not divisible by 7.
+
+! Find the number of entries which are not divisible by 7 in the first one
+! billion (10^9) rows of Pascal's triangle.
+
+
+! SOLUTION
+! --------
+
 <PRIVATE
 
 : sum-1toN ( n -- sum )
     dup 1+ * 2/ ; inline
 
 : >base7 ( x -- y )
-    [ dup 0 > ] [ 7 /mod ] [ ] unfold nip ;
+    [ dup 0 > ] [ 7 /mod ] [ ] produce nip ;
 
 : (use-digit) ( prev x index -- next )
     [ [ 1+ * ] [ sum-1toN 7 sum-1toN ] bi ] dip ^ * + ;
 
-PRIVATE>
-
 : (euler148) ( x -- y )
     >base7 0 [ (use-digit) ] reduce-index ;
 
-: euler148 ( -- y )
+PRIVATE>
+
+: euler148 ( -- answer )
     10 9 ^ (euler148) ;
+
+! [ euler148 ] 100 ave-time
+! 0 ms run time - 100 trials
+
+MAIN: euler148
diff --git a/extra/project-euler/150/150.factor b/extra/project-euler/150/150.factor
index 8c93d4f7e6..c7d878edcb 100644
--- a/extra/project-euler/150/150.factor
+++ b/extra/project-euler/150/150.factor
@@ -1,9 +1,33 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.order sequences sequences.private
-locals hints ;
+USING: hints kernel locals math math.order sequences sequences.private ;
 IN: project-euler.150
 
+! http://projecteuler.net/index.php?section=problems&id=150
+
+! DESCRIPTION
+! -----------
+
+! In a triangular array of positive and negative integers, we wish to find a
+! sub-triangle such that the sum of the numbers it contains is the smallest
+! possible.
+
+! In the example below, it can be easily verified that the marked triangle
+! satisfies this condition having a sum of -42.
+
+! We wish to make such a triangular array with one thousand rows, so we
+! generate 500500 pseudo-random numbers sk in the range +/-2^19, using a type of
+! random number generator (known as a Linear Congruential Generator) as
+! follows:
+
+! ...
+
+! Find the smallest possible sub-triangle sum.
+
+
+! SOLUTION
+! --------
+
 <PRIVATE
 
 ! sequence helper functions
@@ -17,22 +41,16 @@ IN: project-euler.150
 : partial-sum-infimum ( seq -- seq )
     0 0 rot [ (partial-sum-infimum) ] each drop ; inline
 
-: generate ( n quot -- seq )
-    [ drop ] prepose map ; inline
-
 : map-infimum ( seq quot -- min )
     [ min ] compose 0 swap reduce ; inline
 
-
 ! triangle generator functions
 
 : next ( t -- new-t s )
     615949 * 797807 + 20 2^ rem dup 19 2^ - ; inline
 
 : sums-triangle ( -- seq )
-    0 1000 [ 1+ [ next ] generate partial-sums ] map nip ; 
-
-PRIVATE>
+    0 1000 [ 1+ [ next ] replicate partial-sums ] map nip ;
 
 :: (euler150) ( m -- n )
     [let | table [ sums-triangle ] |
@@ -49,5 +67,12 @@ PRIVATE>
 
 HINTS: (euler150) fixnum ;
 
-: euler150 ( -- n )
+PRIVATE>
+
+: euler150 ( -- answer )
     1000 (euler150) ;
+
+! [ euler150 ] 10 ave-time
+! 32858 ms run time - 10 trials
+
+MAIN: euler150
diff --git a/extra/project-euler/151/151.factor b/extra/project-euler/151/151.factor
index b2bbbcc0da..b64ae3d49f 100644
--- a/extra/project-euler/151/151.factor
+++ b/extra/project-euler/151/151.factor
@@ -1,9 +1,41 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: sequences combinators kernel sequences.lib math math.order
-assocs namespaces ;
+USING: assocs combinators kernel math math.order namespaces sequences
+    sequences.lib ;
 IN: project-euler.151
 
+! http://projecteuler.net/index.php?section=problems&id=151
+
+! DESCRIPTION
+! -----------
+
+! A printing shop runs 16 batches (jobs) every week and each batch requires a
+! sheet of special colour-proofing paper of size A5.
+
+! Every Monday morning, the foreman opens a new envelope, containing a large
+! sheet of the special paper with size A1.
+
+! He proceeds to cut it in half, thus getting two sheets of size A2. Then he
+! cuts one of them in half to get two sheets of size A3 and so on until he
+! obtains the A5-size sheet needed for the first batch of the week.
+
+! All the unused sheets are placed back in the envelope.
+
+! At the beginning of each subsequent batch, he takes from the envelope one
+! sheet of paper at random. If it is of size A5, he uses it. If it is larger,
+! he repeats the 'cut-in-half' procedure until he has what he needs and any
+! remaining sheets are always placed back in the envelope.
+
+! Excluding the first and last batch of the week, find the expected number of
+! times (during each week) that the foreman finds a single sheet of paper in
+! the envelope.
+
+! Give your answer rounded to six decimal places using the format x.xxxxxx .
+
+
+! SOLUTION
+! --------
+
 SYMBOL: table
 
 : (pick-sheet) ( seq i -- newseq )
@@ -34,8 +66,15 @@ DEFER: (euler151)
         [ [ dup length [ pick-sheet ] with map sum ] [ sum ] bi / ]
      } case ] cache ;
 
-: euler151 ( -- n )
+: euler151 ( -- answer )
     [
         H{ } clone table set
         { 1 1 1 1 } (euler151)
     ] with-scope ;
+
+! TODO: doesn't work currently, problem in area of 'with map' in (euler151)
+
+! [ euler151 ] 100 ave-time
+! ? ms run time - 100 trials
+
+MAIN: euler151
diff --git a/extra/project-euler/164/164.factor b/extra/project-euler/164/164.factor
index bf1f5dcf9b..9d88e49e0e 100644
--- a/extra/project-euler/164/164.factor
+++ b/extra/project-euler/164/164.factor
@@ -1,7 +1,6 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays assocs kernel math math.ranges sequences ;
-
 IN: project-euler.164
 
 ! http://projecteuler.net/index.php?section=problems&id=164
@@ -12,6 +11,7 @@ IN: project-euler.164
 ! How many 20 digit numbers n (without any leading zero) exist such
 ! that no three consecutive digits of n have a sum greater than 9?
 
+
 ! SOLUTION
 ! --------
 
@@ -29,5 +29,10 @@ IN: project-euler.164
 
 PRIVATE>
 
-: euler164 ( -- n )
+: euler164 ( -- answer )
     init-table 19 [ next-table ] times values sum ;
+
+! [ euler164 ] 100 ave-time
+! 8 ms run time - 100 trials
+
+MAIN: euler164
diff --git a/extra/project-euler/186/186.factor b/extra/project-euler/186/186.factor
index acec27c51f..ac846f6064 100644
--- a/extra/project-euler/186/186.factor
+++ b/extra/project-euler/186/186.factor
@@ -1,4 +1,4 @@
-USING: circular disjoint-set kernel math math.ranges
+USING: circular disjoint-sets kernel math math.ranges
        sequences sequences.lib ;
 IN: project-euler.186
 
@@ -29,7 +29,10 @@ IN: project-euler.186
         drop nip
     ] if ;
 
+: <relation> ( n -- unionfind )
+    <disjoint-set> [ [ add-atom ] curry each ] keep ;
+
 : euler186 ( -- n )
-    <generator> 0 1000000 <disjoint-set> (p186) ;
+    <generator> 0 1000000 <relation> (p186) ;
 
 MAIN: euler186
diff --git a/extra/project-euler/190/190.factor b/extra/project-euler/190/190.factor
index 6fc15c9f30..35b9344362 100644
--- a/extra/project-euler/190/190.factor
+++ b/extra/project-euler/190/190.factor
@@ -1,13 +1,13 @@
-! Copyright (c) 2008 Eric Mertens
+! Copyright (c) 2008 Eric Mertens.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences sequences.lib math math.functions math.ranges locals ;
 IN: project-euler.190
 
-! PROBLEM
-! -------
-
 ! http://projecteuler.net/index.php?section=problems&id=190
 
+! DESCRIPTION
+! -----------
+
 ! Let Sm = (x1, x2, ... , xm) be the m-tuple of positive real numbers
 ! with x1 + x2 + ... + xm = m for which Pm = x1 * x22 * ... * xmm is
 ! maximised.
@@ -17,6 +17,7 @@ IN: project-euler.190
 
 ! Find Σ[Pm] for 2 ≤ m ≤ 15.
 
+
 ! SOLUTION
 ! --------
 
@@ -44,5 +45,10 @@ PRIVATE>
 :: P_m ( m -- P_m )
     m [1,b] [| i | 2 i * m 1+ / i ^ ] PI ;
 
-: euler190 ( -- n )
+: euler190 ( -- answer )
     2 15 [a,b] [ P_m truncate ] sigma ;
+
+! [ euler150 ] 100 ave-time
+! 7 ms run time - 100 trials
+
+MAIN: euler190
diff --git a/extra/project-euler/ave-time/ave-time-docs.factor b/extra/project-euler/ave-time/ave-time-docs.factor
index d8ee0846b0..f2d6b89afc 100644
--- a/extra/project-euler/ave-time/ave-time-docs.factor
+++ b/extra/project-euler/ave-time/ave-time-docs.factor
@@ -1,22 +1,31 @@
-USING: arrays help.markup help.syntax math memory quotations sequences system tools.time ;
+USING: arrays help.markup help.syntax math math.parser memory quotations
+    sequences system tools.time ;
 IN: project-euler.ave-time
 
 HELP: collect-benchmarks
 { $values { "quot" quotation } { "n" integer } { "seq" sequence } }
-{ $description "Runs a quotation " { $snippet "n" } " times, collecting the wall clock time and the time spent in the garbage collector into pairs inside of a sequence." }
-{ $notes "The stack effect of " { $snippet "quot" } " is inferred and only one set of outputs will remain on the stack no matter how many trials are run."
+{ $description "Runs a quotation " { $snippet "n" } " times, collecting the wall clock time inside of a sequence." }
+{ $notes "The stack effect of " { $snippet "quot" } " is accounted for and only one set of outputs will remain on the stack no matter how many trials are run."
     $nl
     "A nicer word for interactive use is " { $link ave-time } "." } ;
 
+HELP: nth-place
+{ $values { "x" float } { "n" integer } { "y" float } }
+{ $description "Rounds a floating point number to " { $snippet "n" } " decimal places." }
+{ $examples
+    "This word is useful for display purposes when showing 15 decimal places is not desired:"
+    { $unchecked-example "3.141592653589793 3 nth-place number>string" "\"3.142\"" }
+} ;
+
 HELP: ave-time
 { $values { "quot" quotation } { "n" integer } }
-{ $description "Runs a quotation " { $snippet "n" } " times, then prints the average run time and the average time spent in the garbage collector." }
-{ $notes "The stack effect of " { $snippet "quot" } " is inferred and only one set of outputs will remain on the stack no matter how many trials are run." }
+{ $description "Runs a quotation " { $snippet "n" } " times, then prints the average run time and standard deviation." }
+{ $notes "The stack effect of " { $snippet "quot" } " is accounted for and only one set of outputs will remain on the stack no matter how many trials are run." }
 { $examples
     "This word can be used to compare performance of the non-optimizing and optimizing compilers."
     $nl
     "First, we time a quotation directly; quotations are compiled by the non-optimizing quotation compiler:"
-    { $unchecked-example "[ 1000000 0 [ + ] reduce drop ] 10 ave-time" "1116 ms run time - 10 trials" }
-    "Now we define a word and compile it with the optimizing word compiler. This results is faster execution:"
-    { $unchecked-example ": foo 1000000 0 [ + ] reduce ;" "\\ foo compile" "[ foo drop ] 10 ave-time" "202 ms run time - 10 trials" }
+    { $unchecked-example "[ 1000000 0 [ + ] reduce drop ] 10 ave-time" "465 ms ave run time - 13.37 SD (10 trials)" }
+    "Now we define a word and compile it with the optimizing word compiler. This results in faster execution:"
+    { $unchecked-example ": foo 1000000 0 [ + ] reduce ;" "\\ foo compile" "[ foo drop ] 10 ave-time" "202 ms ave run time - 22.73 SD (10 trials)" }
 } ;
diff --git a/extra/project-euler/ave-time/ave-time.factor b/extra/project-euler/ave-time/ave-time.factor
index c8212b4009..be39b26a97 100644
--- a/extra/project-euler/ave-time/ave-time.factor
+++ b/extra/project-euler/ave-time/ave-time.factor
@@ -1,7 +1,7 @@
-! Copyright (c) 2007 Aaron Schaefer
+! Copyright (c) 2007 Aaron Schaefer.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays combinators io kernel math math.functions math.parser
-    math.statistics namespaces sequences tools.time ;
+USING: continuations io kernel math math.functions math.parser math.statistics
+    namespaces tools.time ;
 IN: project-euler.ave-time
 
 : collect-benchmarks ( quot n -- seq )
@@ -10,7 +10,11 @@ IN: project-euler.ave-time
     [ with-datastack drop ] 2curry r> swap times call
   ] { } make ;
 
+: nth-place ( x n -- y )
+    10 swap ^ [ * round ] keep / ;
+
 : ave-time ( quot n -- )
-    [ collect-benchmarks ] keep swap mean round [
-        # " ms run time - " % # " trials" %
+    [ collect-benchmarks ] keep
+    swap [ std 2 nth-place ] [ mean round ] bi [
+        # " ms ave run time - " % # " SD (" % # " trials)" %
     ] "" make print flush ; inline
diff --git a/extra/project-euler/common/common.factor b/extra/project-euler/common/common.factor
index fefb986fe0..7963cde254 100644
--- a/extra/project-euler/common/common.factor
+++ b/extra/project-euler/common/common.factor
@@ -78,7 +78,7 @@ PRIVATE>
     ] if ;
 
 : number>digits ( n -- seq )
-    [ dup zero? not ] [ 10 /mod ] [ ] unfold reverse nip ;
+    [ dup zero? not ] [ 10 /mod ] [ ] produce reverse nip ;
 
 : nth-triangle ( n -- n )
     dup 1+ * 2 / ;
diff --git a/extra/project-euler/project-euler.factor b/extra/project-euler/project-euler.factor
index 9325e74d93..9dfaad0e7b 100644
--- a/extra/project-euler/project-euler.factor
+++ b/extra/project-euler/project-euler.factor
@@ -16,8 +16,10 @@ USING: definitions io io.files kernel math math.parser project-euler.ave-time
     project-euler.045 project-euler.046 project-euler.047 project-euler.048
     project-euler.052 project-euler.053 project-euler.056 project-euler.059
     project-euler.067 project-euler.075 project-euler.079 project-euler.092
-    project-euler.097 project-euler.134 project-euler.169 project-euler.173
-    project-euler.175 ;
+    project-euler.097 project-euler.100 project-euler.116 project-euler.117
+    project-euler.134 project-euler.148 project-euler.150 project-euler.151
+    project-euler.164 project-euler.169 project-euler.173 project-euler.175
+    project-euler.186 project-euler.190 ;
 IN: project-euler
 
 <PRIVATE
diff --git a/extra/promises/promises.factor b/extra/promises/promises.factor
index 2126f0c05d..5d63406e78 100755
--- a/extra/promises/promises.factor
+++ b/extra/promises/promises.factor
@@ -5,7 +5,7 @@
 ! Updated by Chris Double, September 2006
 
 USING: arrays kernel sequences math vectors arrays namespaces
-quotations parser effects inference words ;
+quotations parser effects stack-checker words accessors ;
 IN: promises
 
 TUPLE: promise quot forced? value ;
@@ -23,14 +23,14 @@ TUPLE: promise quot forced? value ;
     #! Force the given promise leaving the value of calling the
     #! promises quotation on the stack. Re-forcing the promise
     #! will return the same value and not recall the quotation.
-    dup promise-forced? [
-        dup promise-quot call over set-promise-value
-        t over set-promise-forced?
+    dup forced?>> [
+        dup quot>> call >>value
+        t >>forced?
     ] unless
-    promise-value ;
+    value>> ;
 
 : stack-effect-in ( quot word -- n )
-  stack-effect [ ] [ infer ] ?if effect-in length ;
+  stack-effect [ ] [ infer ] ?if in>> length ;
 
 : make-lazy-quot ( word quot -- quot )
   [
diff --git a/extra/random-weighted/random-weighted.factor b/extra/random-weighted/random-weighted.factor
index 59cc15cba6..3f7a5d09b5 100644
--- a/extra/random-weighted/random-weighted.factor
+++ b/extra/random-weighted/random-weighted.factor
@@ -1,6 +1,6 @@
 
 USING: kernel namespaces arrays quotations sequences assocs combinators
-       mirrors math math.vectors random macros bake ;
+       mirrors math math.vectors random macros fry ;
 
 IN: random-weighted
 
@@ -16,5 +16,5 @@ probabilities layers [ 1000 * ] map 1000 random [ > ] curry find drop ;
 dup [ second ] map swap [ first ] map random-weighted swap nth ;
 
 MACRO: call-random-weighted ( exp -- )
-  [ keys ] [ values <enum> >alist ] bi swap
-  [ , random-weighted , case ] bake ;
+  [ keys ] [ values <enum> >alist ] bi
+  '[ , random-weighted , case ] ;
diff --git a/extra/random/blum-blum-shub/blum-blum-shub-tests.factor b/extra/random/blum-blum-shub/blum-blum-shub-tests.factor
index c882dd2b4d..9ace53ab25 100644
--- a/extra/random/blum-blum-shub/blum-blum-shub-tests.factor
+++ b/extra/random/blum-blum-shub/blum-blum-shub-tests.factor
@@ -1,5 +1,6 @@
 USING: kernel math tools.test namespaces random
-random.blum-blum-shub alien.c-types sequences splitting ;
+random.blum-blum-shub alien.c-types sequences splitting
+grouping ;
 IN: blum-blum-shub.tests
 
 [ 887708070 ] [
@@ -7,14 +8,14 @@ IN: blum-blum-shub.tests
 ] unit-test
 
 
-[ 887708070 ] [
+[ 70576473 ] [
     T{ blum-blum-shub f 590695557939 811977232793 } clone [
         32 random-bits
         little-endian? [ <uint> reverse *uint ] unless
     ] with-random
 ] unit-test
 
-[ 5726770047455156646 ] [
+[ 5570804936418322777 ] [
     T{ blum-blum-shub f 590695557939 811977232793 } clone [
         64 random-bits
         little-endian? [ <ulonglong> 4 group [ reverse ] map concat *ulonglong ] unless
diff --git a/extra/random/random-tests.factor b/extra/random/random-tests.factor
deleted file mode 100644
index d85df3e0be..0000000000
--- a/extra/random/random-tests.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-USING: random sequences tools.test ;
-IN: random.tests
-
-[ 4 ] [ 4 random-bytes length ] unit-test
-[ 7 ] [ 7 random-bytes length ] unit-test
-
-[ 4 ] [ [ 4 random-bytes length ] with-secure-random ] unit-test
-[ 7 ] [ [ 7 random-bytes length ] with-secure-random ] unit-test
diff --git a/extra/random/windows/tags.txt b/extra/random/windows/tags.txt
deleted file mode 100644
index 8e1a55995e..0000000000
--- a/extra/random/windows/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-windows
diff --git a/extra/raptor/cron/tags.txt b/extra/raptor/cron/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/raptor/cron/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/raptor/raptor.factor b/extra/raptor/raptor.factor
index d58e242d86..933275e5bf 100755
--- a/extra/raptor/raptor.factor
+++ b/extra/raptor/raptor.factor
@@ -1,5 +1,6 @@
 
-USING: kernel parser namespaces threads arrays sequences unix unix.process bake ;
+USING: kernel parser namespaces threads arrays sequences unix unix.process
+       bake ;
 
 IN: raptor
 
diff --git a/extra/raptor/tags.txt b/extra/raptor/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/raptor/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/regexp/regexp.factor b/extra/regexp/regexp.factor
index 78ffaf5eeb..cd2d0790ab 100755
--- a/extra/regexp/regexp.factor
+++ b/extra/regexp/regexp.factor
@@ -1,7 +1,8 @@
-USING: arrays combinators kernel lazy-lists math math.parser
-namespaces parser parser-combinators parser-combinators.simple
+USING: arrays combinators kernel lists math math.parser
+namespaces parser lexer parser-combinators parser-combinators.simple
 promises quotations sequences combinators.lib strings math.order
-assocs prettyprint.backend memoize unicode.case unicode.categories ;
+assocs prettyprint.backend memoize unicode.case unicode.categories
+combinators.short-circuit accessors ;
 USE: io
 IN: regexp
 
@@ -20,12 +21,9 @@ SYMBOL: ignore-case?
     [ [ between? ] ]
     if 2curry ;
 
-: or-predicates ( quots -- quot )
-    [ \ dup prefix ] map [ [ t ] ] f short-circuit \ nip suffix ;
+: <@literal ( parser obj -- action ) [ nip ] curry <@ ;
 
-: <@literal [ nip ] curry <@ ;
-
-: <@delay [ curry ] curry <@ ;
+: <@delay ( parser quot -- action ) [ curry ] curry <@ ;
 
 PRIVATE>
 
@@ -135,10 +133,10 @@ PRIVATE>
     'posix-character-class' <|>
     'simple-escape' <|> &> ;
 
-: 'any-char'
+: 'any-char' ( -- parser )
     "." token [ drop t ] <@literal ;
 
-: 'char'
+: 'char' ( -- parser )
     'any-char' 'escape' 'ordinary-char' <|> <|> [ satisfy ] <@ ;
 
 DEFER: 'regexp'
@@ -179,7 +177,7 @@ C: <group-result> group-result
 : 'positive-character-class' ( -- parser )
     "]" token [ CHAR: ] = ] <@literal 'character-class-term' <*> <&:>
     'character-class-term' <+> <|>
-    [ or-predicates ] <@ ;
+    [ [ 1|| ] curry ] <@ ;
 
 : 'negative-character-class' ( -- parser )
     "^" token 'positive-character-class' &>
@@ -272,14 +270,14 @@ TUPLE: regexp source parser ignore-case? ;
     ] keep regexp boa ;
 
 : do-ignore-case ( string regexp -- string regexp )
-    dup regexp-ignore-case? [ >r >upper r> ] when ;
+    dup ignore-case?>> [ >r >upper r> ] when ;
 
 : matches? ( string regexp -- ? )
-    do-ignore-case regexp-parser just parse nil? not ;
+    do-ignore-case parser>> just parse nil? not ;
 
 : match-head ( string regexp -- end )
-    do-ignore-case regexp-parser parse dup nil?
-    [ drop f ] [ car parse-result-unparsed slice-from ] if ;
+    do-ignore-case parser>> parse dup nil?
+    [ drop f ] [ car unparsed>> from>> ] if ;
 
 ! Literal syntax for regexps
 : parse-options ( string -- ? )
@@ -325,8 +323,8 @@ TUPLE: regexp source parser ignore-case? ;
 
 M: regexp pprint*
     [
-        dup regexp-source
+        dup source>>
         dup find-regexp-syntax swap % swap % %
-        dup regexp-ignore-case? [ "i" % ] when
+        dup ignore-case?>> [ "i" % ] when
     ] "" make
     swap present-text ;
diff --git a/extra/regexp2/regexp2-tests.factor b/extra/regexp2/regexp2-tests.factor
deleted file mode 100644
index 1fb3f61f29..0000000000
--- a/extra/regexp2/regexp2-tests.factor
+++ /dev/null
@@ -1,5 +0,0 @@
-USING: kernel peg regexp2 sequences tools.test ;
-IN: regexp2.tests
-
-[ T{ parse-result f T{ slice f 3 3 "056" } 46 } ]
-    [ "056" 'octal' parse ] unit-test
diff --git a/extra/regexp2/regexp2.factor b/extra/regexp2/regexp2.factor
deleted file mode 100644
index f7023c74bf..0000000000
--- a/extra/regexp2/regexp2.factor
+++ /dev/null
@@ -1,262 +0,0 @@
-USING: assocs combinators.lib kernel math math.parser
-namespaces peg unicode.case sequences unicode.categories
-memoize peg.parsers math.order ;
-USE: io
-USE: tools.walker
-IN: regexp2
-
-<PRIVATE
-    
-SYMBOL: ignore-case?
-
-: char=-quot ( ch -- quot )
-    ignore-case? get
-    [ ch>upper [ swap ch>upper = ] ] [ [ = ] ] if
-    curry ;
-    
-: char-between?-quot ( ch1 ch2 -- quot )
-    ignore-case? get
-    [ [ ch>upper ] bi@ [ >r >r ch>upper r> r> between? ] ]
-    [ [ between? ] ]
-    if 2curry ;
-    
-: or-predicates ( quots -- quot )
-    [ \ dup prefix ] map [ [ t ] ] f short-circuit \ nip suffix ;
-
-: literal-action [ nip ] curry action ;
-
-: delay-action [ curry ] curry action ;
-    
-PRIVATE>
-
-: ascii? ( n -- ? )
-    0 HEX: 7f between? ;
-    
-: octal-digit? ( n -- ? ) 
-    CHAR: 0 CHAR: 7 between? ;
-
-: hex-digit? ( n -- ? )
-    {
-        [ dup digit? ]
-        [ dup CHAR: a CHAR: f between? ]
-        [ dup CHAR: A CHAR: F between? ]
-    } || nip ;
-
-: control-char? ( n -- ? )
-    { [ dup 0 HEX: 1f between? ] [ dup HEX: 7f = ] } || nip ;
-
-: punct? ( n -- ? )
-    "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" member? ;
-
-: c-identifier-char? ( ch -- ? )
-    { [ dup alpha? ] [ dup CHAR: _ = ] } || nip ;
-
-: java-blank? ( n -- ? )
-    {
-        CHAR: \s
-        CHAR: \t CHAR: \n CHAR: \r
-        HEX: c HEX: 7 HEX: 1b
-    } member? ;
-
-: java-printable? ( n -- ? )
-    { [ dup alpha? ] [ dup punct? ] } || nip ;
-
-MEMO: 'ordinary-char' ( -- parser )
-    [ "\\^*+?|(){}[$" member? not ] satisfy
-    [ char=-quot ] action ;
-
-MEMO: 'octal-digit' ( -- parser ) [ octal-digit? ] satisfy ;
-
-MEMO: 'octal' ( -- parser )
-    "0" token hide 'octal-digit' 1 3 from-m-to-n 2seq
-    [ first oct> ] action ;
-
-MEMO: 'hex-digit' ( -- parser ) [ hex-digit? ] satisfy ;
-
-MEMO: 'hex' ( -- parser )
-    "x" token hide 'hex-digit' 2 exactly-n 2seq
-    "u" token hide 'hex-digit' 6 exactly-n 2seq 2choice
-    [ first hex> ] action ;
-
-: satisfy-tokens ( assoc -- parser )
-    [ >r token r> literal-action ] { } assoc>map choice ;
-
-MEMO: 'simple-escape-char' ( -- parser )
-    {
-        { "\\" CHAR: \\ }
-        { "t"  CHAR: \t }
-        { "n"  CHAR: \n }
-        { "r"  CHAR: \r }
-        { "f"  HEX: c   }
-        { "a"  HEX: 7   }
-        { "e"  HEX: 1b  }
-    } [ char=-quot ] assoc-map satisfy-tokens ;
-
-MEMO: 'predefined-char-class' ( -- parser )
-    {   
-        { "d" [ digit? ] } 
-        { "D" [ digit? not ] }
-        { "s" [ java-blank? ] } 
-        { "S" [ java-blank? not ] }
-        { "w" [ c-identifier-char? ] } 
-        { "W" [ c-identifier-char? not ] }
-    } satisfy-tokens ;
-
-MEMO: 'posix-character-class' ( -- parser )
-    {   
-        { "Lower" [ letter? ] }
-        { "Upper" [ LETTER? ] }
-        { "ASCII" [ ascii? ] }
-        { "Alpha" [ Letter? ] }
-        { "Digit" [ digit? ] }
-        { "Alnum" [ alpha? ] }
-        { "Punct" [ punct? ] }
-        { "Graph" [ java-printable? ] }
-        { "Print" [ java-printable? ] }
-        { "Blank" [ " \t" member? ] }
-        { "Cntrl" [ control-char? ] }
-        { "XDigit" [ hex-digit? ] }
-        { "Space" [ java-blank? ] }
-    } satisfy-tokens "p{" "}" surrounded-by ;
-
-MEMO: 'simple-escape' ( -- parser )
-    [
-        'octal' ,
-        'hex' ,
-        "c" token hide [ LETTER? ] satisfy 2seq ,
-        any-char ,
-    ] choice* [ char=-quot ] action ;
-
-MEMO: 'escape' ( -- parser )
-    "\\" token hide [
-        'simple-escape-char' ,
-        'predefined-char-class' ,
-        'posix-character-class' ,
-        'simple-escape' ,
-    ] choice* 2seq ;
-
-MEMO: 'any-char' ( -- parser )
-    "." token [ drop t ] literal-action ;
-
-MEMO: 'char' ( -- parser )
-    'any-char' 'escape' 'ordinary-char' 3choice [ satisfy ] action ;
-
-DEFER: 'regexp'
-
-TUPLE: group-result str ;
-
-C: <group-result> group-result
-
-MEMO: 'non-capturing-group' ( -- parser )
-    "?:" token hide 'regexp' ;
-
-MEMO: 'positive-lookahead-group' ( -- parser )
-    "?=" token hide 'regexp' [ ensure ] action ;
-
-MEMO: 'negative-lookahead-group' ( -- parser )
-    "?!" token hide 'regexp' [ ensure-not ] action ;
-
-MEMO: 'simple-group' ( -- parser )
-    'regexp' [ [ <group-result> ] action ] action ;
-
-MEMO: 'group' ( -- parser )
-    [
-        'non-capturing-group' ,
-        'positive-lookahead-group' ,
-        'negative-lookahead-group' ,
-        'simple-group' ,
-    ] choice* "(" ")" surrounded-by ;
-
-MEMO: 'range' ( -- parser )
-    any-char "-" token hide any-char 3seq
-    [ first2 char-between?-quot ] action ;
-
-MEMO: 'character-class-term' ( -- parser )
-    'range'
-    'escape'
-    [ "\\]" member? not ] satisfy [ char=-quot ] action
-    3choice ;
-
-MEMO: 'positive-character-class' ( -- parser )
-    ! todo
-    "]" token [ CHAR: ] = ] literal-action 'character-class-term' repeat0 2seq 
-    'character-class-term' repeat1 2choice [ or-predicates ] action ;
-
-MEMO: 'negative-character-class' ( -- parser )
-    "^" token hide 'positive-character-class' 2seq
-    [ [ not ] append ] action ;
-
-MEMO: 'character-class' ( -- parser )
-    'negative-character-class' 'positive-character-class' 2choice
-    "[" "]" surrounded-by [ satisfy ] action ;
-
-MEMO: 'escaped-seq' ( -- parser )
-    any-char repeat1
-    [ ignore-case? get token ] action "\\Q" "\\E" surrounded-by ;
-    
-MEMO: 'break' ( quot -- parser )
-    satisfy ensure
-    epsilon just 2choice ;
-    
-MEMO: 'break-escape' ( -- parser )
-    "$" token [ "\r\n" member? ] 'break' literal-action
-    "\\b" token [ blank? ] 'break' literal-action
-    "\\B" token [ blank? not ] 'break' literal-action
-    "\\z" token epsilon just literal-action 4choice ;
-    
-MEMO: 'simple' ( -- parser )
-    [
-        'escaped-seq' ,
-        'break-escape' ,
-        'group' ,
-        'character-class' ,
-        'char' ,
-    ] choice* ;
-
-MEMO: 'exactly-n' ( -- parser )
-    'integer' [ exactly-n ] delay-action ;
-
-MEMO: 'at-least-n' ( -- parser )
-    'integer' "," token hide 2seq [ at-least-n ] delay-action ;
-
-MEMO: 'at-most-n' ( -- parser )
-    "," token hide 'integer' 2seq [ at-most-n ] delay-action ;
-
-MEMO: 'from-m-to-n' ( -- parser )
-    'integer' "," token hide 'integer' 3seq
-    [ first2 from-m-to-n ] delay-action ;
-
-MEMO: 'greedy-interval' ( -- parser )
-    'exactly-n' 'at-least-n' 'at-most-n' 'from-m-to-n' 4choice ;
-
-MEMO: 'interval' ( -- parser )
-    'greedy-interval'
-    'greedy-interval' "?" token hide 2seq [ "reluctant {}" print ] action
-    'greedy-interval' "+" token hide 2seq [ "possessive {}" print ] action
-    3choice "{" "}" surrounded-by ;
-
-MEMO: 'repetition' ( -- parser )
-    [
-        ! Possessive
-        ! "*+" token [ <!*> ] literal-action ,
-        ! "++" token [ <!+> ] literal-action ,
-        ! "?+" token [ <!?> ] literal-action ,
-        ! Reluctant
-        ! "*?" token [ <(*)> ] literal-action ,
-        ! "+?" token [ <(+)> ] literal-action ,
-        ! "??" token [ <(?)> ] literal-action ,
-        ! Greedy
-        "*" token [ repeat0 ] literal-action ,
-        "+" token [ repeat1 ] literal-action ,
-        "?" token [ optional ] literal-action ,
-    ] choice* ;
-
-MEMO: 'dummy' ( -- parser )
-    epsilon [ ] literal-action ;
-
-! todo -- check the action
-! MEMO: 'term' ( -- parser )
-    ! 'simple'
-    ! 'repetition' 'interval' 'dummy' 3choice 2seq [ first2 call ] action
-    ! <!+> [ <and-parser> ] action ;
-
diff --git a/extra/reports/noise/noise.factor b/extra/reports/noise/noise.factor
index f94c774943..78ede32801 100755
--- a/extra/reports/noise/noise.factor
+++ b/extra/reports/noise/noise.factor
@@ -1,7 +1,9 @@
-USING: assocs math kernel shuffle combinators.lib
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs math kernel shuffle generalizations
 words quotations arrays combinators sequences math.vectors
 io.styles prettyprint vocabs sorting io generic locals.private
-math.statistics math.order ;
+math.statistics math.order combinators.lib ;
 IN: reports.noise
 
 : badness ( word -- n )
@@ -20,7 +22,6 @@ IN: reports.noise
         { 2swap 3 }
         { 2with 2 }
         { 2with* 3 }
-        { 3apply 1/2 }
         { 3curry 2 }
         { 3drop 1 }
         { 3dup 2 }
@@ -85,19 +86,19 @@ IN: reports.noise
         { spread 2 }
     } at 0 or ;
 
-: vsum { 0 0 } [ v+ ] reduce ;
+: vsum ( pairs -- pair ) { 0 0 } [ v+ ] reduce ;
 
 GENERIC: noise ( obj -- pair )
 
 M: word noise badness 1 2array ;
 
-M: wrapper noise wrapped noise ;
+M: wrapper noise wrapped>> noise ;
 
-M: let noise let-body noise ;
+M: let noise body>> noise ;
 
-M: wlet noise wlet-body noise ;
+M: wlet noise body>> noise ;
 
-M: lambda noise lambda-body noise ;
+M: lambda noise body>> noise ;
 
 M: object noise drop { 0 0 } ;
 
@@ -105,7 +106,7 @@ M: quotation noise [ noise ] map vsum { 1/4 1/2 } v+ ;
 
 M: array noise [ noise ] map vsum ;
 
-: noise-factor / 100 * >integer ;
+: noise-factor ( x y -- z ) / 100 * >integer ;
 
 : quot-noise-factor ( quot -- n )
     #! For very short words, noise doesn't count so much
@@ -129,7 +130,7 @@ M: array noise [ noise ] map vsum ;
 GENERIC: word-noise-factor ( word -- factor )
 
 M: word word-noise-factor
-    word-def quot-noise-factor ;
+    def>> quot-noise-factor ;
 
 M: lambda-word word-noise-factor
     "lambda" word-prop quot-noise-factor ;
@@ -154,11 +155,11 @@ M: lambda-word word-noise-factor
 : vocab-noise-factor ( vocab -- factor )
     words flatten-generics
     [ word-noise-factor dup 20 < [ drop 0 ] when ] map
-    dup empty? [ drop 0 ] [
+    [ 0 ] [
         [ [ sum ] [ length 5 max ] bi /i ]
         [ supremum ]
         bi +
-    ] if ;
+    ] if-empty ;
 
 : noisy-vocabs ( -- alist )
     vocabs [ dup vocab-noise-factor ] { } map>assoc
diff --git a/extra/reports/optimizer/optimizer.factor b/extra/reports/optimizer/optimizer.factor
deleted file mode 100755
index 51eae24333..0000000000
--- a/extra/reports/optimizer/optimizer.factor
+++ /dev/null
@@ -1,33 +0,0 @@
-USING: assocs words sequences arrays compiler tools.time
-io.styles io prettyprint vocabs kernel sorting generator
-optimizer math math.order ;
-IN: report.optimizer
-
-: count-optimization-passes ( nodes n -- n )
-    >r optimize-1
-    [ r> 1+ count-optimization-passes ] [ drop r> ] if ;
-
-: results
-    [ [ second ] prepose compare ] curry sort 20 tail*
-    print
-    standard-table-style
-    [
-        [ [ [ pprint-cell ] each ] with-row ] each
-    ] tabular-output ; inline
-
-: optimizer-measurements ( -- alist )
-    all-words [ compiled? ] filter
-    [
-        dup [
-            word-dataflow nip 1 count-optimization-passes
-        ] benchmark 2array
-    ] { } map>assoc ;
-
-: optimizer-measurements. ( alist -- )
-    [ [ first ] "Worst number of optimizer passes:" results ]
-    [ [ second ] "Worst compile times:" results ] bi ;
-
-: optimizer-report ( -- )
-    optimizer-measurements optimizer-measurements. ;
-
-MAIN: optimizer-report
diff --git a/extra/rewrite-closures/rewrite-closures.factor b/extra/rewrite-closures/rewrite-closures.factor
index ccd3989d1a..198e1744bc 100644
--- a/extra/rewrite-closures/rewrite-closures.factor
+++ b/extra/rewrite-closures/rewrite-closures.factor
@@ -1,30 +1,26 @@
 
-USING: kernel parser math quotations namespaces sequences namespaces.lib 
-       inference.transforms ;
+USING: kernel parser math quotations namespaces sequences macros fry ;
 
 IN: rewrite-closures
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-! : set-parameters ( seq -- ) reverse [ set ] each ;
+: [set-parameters] ( seq -- quot ) reverse [ [ set ] curry ] map concat ;
 
-: [set-parameters] ( seq -- quot ) [ [ set ] curry ] map concat ;
-
-: set-parameters ( seq -- ) [set-parameters] call ;
-
-\ set-parameters [ [set-parameters] ] 1 define-transform
-
-: parametric-quot ( parameters quot -- quot )
-[ [ swap ] set-parameters [ ] call ] make* ;
-
-: scoped-quot ( quot -- quot ) [ with-scope ] curry ;
-
-: closed-quot ( quot -- quot )
-[ namestack >r [ namestack ] set-namestack [ ] call r> set-namestack ] make* ;
+MACRO: set-parameters ( seq -- quot ) [set-parameters] ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: lambda ( parameters quot -- ) parametric-quot scoped-quot closed-quot ;
+: parametric-quot ( parameters quot -- quot ) '[ , set-parameters , call ] ;
+
+: scoped-quot ( quot -- quot ) '[ , with-scope ] ;
+
+: closed-quot ( quot -- quot )
+  namestack swap '[ namestack [ , set-namestack @ ] dip set-namestack ] ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: lambda ( parameters quot -- quot ) parametric-quot scoped-quot closed-quot ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
diff --git a/extra/roman/roman.factor b/extra/roman/roman.factor
index 71b5d69693..aefe86328d 100644
--- a/extra/roman/roman.factor
+++ b/extra/roman/roman.factor
@@ -1,26 +1,20 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-
 USING: arrays assocs kernel math math.order math.vectors namespaces
 quotations sequences sequences.lib sequences.private strings unicode.case ;
 IN: roman
 
 <PRIVATE
-
 : roman-digits ( -- seq )
     { "m" "cm" "d" "cd" "c" "xc" "l" "xl" "x" "ix" "v" "iv" "i" } ;
 
 : roman-values ( -- seq )
     { 1000 900 500 400 100 90 50 40 10 9 5 4 1 } ;
 
-TUPLE: roman-range-error n ;
+ERROR: roman-range-error n ;
 
 : roman-range-check ( n -- )
-    dup 1 3999 between? [
-        drop
-    ] [
-        roman-range-error boa throw
-    ] if ;
+    dup 1 3999 between? [ drop ] [ roman-range-error ] if ;
 
 : roman<= ( ch1 ch2 -- ? )
     [ 1string roman-digits index ] bi@ >= ;
@@ -39,7 +33,6 @@ TUPLE: roman-range-error n ;
     ] [
         first2 swap -
     ] if ;
-
 PRIVATE>
 
 : >roman ( n -- str )
@@ -55,13 +48,11 @@ PRIVATE>
     ] map sum ;
 
 <PRIVATE
-
 : 2roman> ( str1 str2 -- m n )
     [ roman> ] bi@ ;
 
 : binary-roman-op ( str1 str2 quot -- str3 )
     >r 2roman> r> call >roman ; inline
-
 PRIVATE>
 
 : roman+ ( str1 str2 -- str3 )
diff --git a/extra/roman/tags.txt b/extra/roman/tags.txt
index cb5fc203e1..8b13789179 100644
--- a/extra/roman/tags.txt
+++ b/extra/roman/tags.txt
@@ -1 +1 @@
-demos
+
diff --git a/extra/rss/rss.factor b/extra/rss/rss.factor
deleted file mode 100644
index 5183af5145..0000000000
--- a/extra/rss/rss.factor
+++ /dev/null
@@ -1,117 +0,0 @@
-! Copyright (C) 2006 Chris Double, Daniel Ehrenberg.
-! See http://factorcode.org/license.txt for BSD license.
-USING: xml.utilities kernel assocs xml.generator math.order
-    strings sequences xml.data xml.writer
-    io.streams.string combinators xml xml.entities io.files io
-    http.client namespaces xml.generator hashtables
-    calendar.format accessors continuations urls ;
-IN: rss
-
-: any-tag-named ( tag names -- tag-inside )
-    f -rot [ tag-named nip dup ] with find 2drop ;
-
-TUPLE: feed title link entries ;
-
-C: <feed> feed
-
-TUPLE: entry title link description pub-date ;
-
-C: <entry> entry
-
-: try-parsing-timestamp ( string -- timestamp )
-    [ rfc822>timestamp ] [ drop rfc3339>timestamp ] recover ;
-
-: rss1.0-entry ( tag -- entry )
-    {
-        [ "title" tag-named children>string ]
-        [ "link" tag-named children>string ]
-        [ "description" tag-named children>string ]
-        [
-            f "date" "http://purl.org/dc/elements/1.1/" <name>
-            tag-named dup [ children>string try-parsing-timestamp ] when
-        ]
-    } cleave <entry> ;
-
-: rss1.0 ( xml -- feed )
-    [
-        "channel" tag-named
-        [ "title" tag-named children>string ]
-        [ "link" tag-named children>string ] bi
-    ] [ "item" tags-named [ rss1.0-entry ] map ] bi
-    <feed> ;
-
-: rss2.0-entry ( tag -- entry )
-    {
-        [ "title" tag-named children>string ]
-        [ { "link" "guid" } any-tag-named children>string ]
-        [ "description" tag-named children>string ]
-        [
-            { "date" "pubDate" } any-tag-named
-            children>string try-parsing-timestamp
-        ]
-    } cleave <entry> ;
-
-: rss2.0 ( xml -- feed )
-    "channel" tag-named 
-    [ "title" tag-named children>string ]
-    [ "link" tag-named children>string ]
-    [ "item" tags-named [ rss2.0-entry ] map ]
-    tri <feed> ;
-
-: atom1.0-entry ( tag -- entry )
-    {
-        [ "title" tag-named children>string ]
-        [ "link" tag-named "href" swap at ]
-        [
-            { "content" "summary" } any-tag-named
-            dup tag-children [ string? not ] contains?
-            [ tag-children [ write-chunk ] with-string-writer ]
-            [ children>string ] if
-        ]
-        [
-            { "published" "updated" "issued" "modified" } 
-            any-tag-named children>string try-parsing-timestamp
-        ]
-    } cleave <entry> ;
-
-: atom1.0 ( xml -- feed )
-    [ "title" tag-named children>string ]
-    [ "link" tag-named "href" swap at ]
-    [ "entry" tags-named [ atom1.0-entry ] map ]
-    tri <feed> ;
-
-: xml>feed ( xml -- feed )
-    dup name-tag {
-        { "RDF" [ rss1.0 ] }
-        { "rss" [ rss2.0 ] }
-        { "feed" [ atom1.0 ] }
-    } case ;
-
-: read-feed ( string -- feed )
-    [ string>xml xml>feed ] with-html-entities ;
-
-: download-feed ( url -- feed )
-    #! Retrieve an news syndication file, return as a feed tuple.
-    http-get read-feed ;
-
-! Atom generation
-: simple-tag, ( content name -- )
-    [ , ] tag, ;
-
-: simple-tag*, ( content name attrs -- )
-    [ , ] tag*, ;
-
-: entry, ( entry -- )
-    "entry" [
-        dup title>> "title" { { "type" "html" } } simple-tag*,
-        "link" over link>> dup url? [ url>string ] when "href" associate contained*,
-        dup pub-date>> timestamp>rfc3339 "published" simple-tag,
-        description>> [ "content" { { "type" "html" } } simple-tag*, ] when*
-    ] tag, ;
-
-: feed>xml ( feed -- xml )
-    "feed" { { "xmlns" "http://www.w3.org/2005/Atom" } } [
-        dup title>> "title" simple-tag,
-        "link" over link>> dup url? [ url>string ] when "href" associate contained*,
-        entries>> [ entry, ] each
-    ] make-xml* ;
diff --git a/extra/self/slots/slots.factor b/extra/self/slots/slots.factor
new file mode 100644
index 0000000000..b07641a062
--- /dev/null
+++ b/extra/self/slots/slots.factor
@@ -0,0 +1,27 @@
+
+USING: kernel words lexer parser sequences accessors self ;
+
+IN: self.slots
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: define-self-slot-reader ( slot -- )
+  [ "->" append current-vocab create dup set-word ]
+  [ ">>" append search [ self> ] swap suffix      ] bi
+  (( -- value )) define-declared ;
+
+: define-self-slot-writer ( slot -- )
+  [ "->" prepend current-vocab create dup set-word ]
+  [ ">>" prepend search [ self> swap ] swap suffix [ drop ] append ] bi
+  (( value -- )) define-declared ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: define-self-slot-accessors ( class -- )
+  "slots" word-prop
+  [ name>> ] map
+  [ [ define-self-slot-reader ] [ define-self-slot-writer ] bi ] each ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: SELF-SLOTS: scan-word define-self-slot-accessors ; parsing
\ No newline at end of file
diff --git a/extra/sequences/lib/lib-docs.factor b/extra/sequences/lib/lib-docs.factor
index 14fb6eaebf..9975da00db 100755
--- a/extra/sequences/lib/lib-docs.factor
+++ b/extra/sequences/lib/lib-docs.factor
@@ -18,42 +18,3 @@ HELP: each-withn
 "passed to the quotation given to each-withn for each element in the sequence."
 } 
 { $see-also map-withn } ;
-
-HELP: sigma
-{ $values { "seq" sequence } { "quot" quotation } { "n" number } }
-{ $description "Like map sum, but without creating an intermediate sequence." }
-{ $example
-    "! Find the sum of the squares [0,99]"
-    "USING: math math.ranges sequences.lib prettyprint ;"
-    "100 [1,b] [ sq ] sigma ."
-    "338350"
-} ;
-
-HELP: count
-{ $values { "seq" sequence } { "quot" quotation } { "n" integer } }
-{ $description "Efficiently returns the number of elements that the predicate quotation matches." }
-{ $example
-    "USING: math math.ranges sequences.lib prettyprint ;"
-    "100 [1,b] [ even? ] count ."
-    "50"
-} ;
-
-HELP: if-seq
-{ $values { "seq" sequence } { "quot1" quotation } { "quot2" quotation } }
-{ $description "Makes an implicit check if the sequence is empty.  If the sequence has any elements, " { $snippet "quot1" } " is called on it.  Otherwise, the empty sequence is dropped and " { $snippet "quot2" } " is called." }
-{ $example
-    "USING: kernel prettyprint sequences sequences.lib ;"
-    "{ 1 2 3 } [ sum ] [ \"empty sequence\" throw ] if-seq ."
-    "6"
-} ;
-
-HELP: if-empty
-{ $values { "seq" sequence } { "quot1" quotation } { "quot2" quotation } }
-{ $description "Makes an implicit check if the sequence is empty. An empty sequence is dropped and " { $snippet "quot1" } " is called. Otherwise, if the sequence has any elements, " { $snippet "quot2" } " is called on it." }
-{ $example
-    "USING: kernel prettyprint sequences sequences.lib ;"
-    "{ 1 2 3 } [ \"empty sequence\" ] [ sum ] if-empty ."
-    "6"
-} ;
-
-{ if-seq if-empty } related-words
diff --git a/extra/sequences/lib/lib-tests.factor b/extra/sequences/lib/lib-tests.factor
index ee447decdf..12bdd45c46 100755
--- a/extra/sequences/lib/lib-tests.factor
+++ b/extra/sequences/lib/lib-tests.factor
@@ -2,10 +2,6 @@ USING: arrays kernel sequences sequences.lib math math.functions math.ranges
     tools.test strings ;
 IN: sequences.lib.tests
 
-[ 50 ] [ 100 [1,b] [ even? ] count ] unit-test
-[ 50 ] [ 100 [1,b] [ odd? ] count ] unit-test
-[ 328350 ] [ 100 [ sq ] sigma ] unit-test
-
 [ 1 2 { 3 4 } [ + + drop ] 2 each-withn  ] must-infer
 { 13 } [ 1 2 { 3 4 } [ + + ] 2 each-withn + ] unit-test
 
@@ -47,9 +43,6 @@ IN: sequences.lib.tests
 [ { { 1 1 1 1 } { 2 2 } { 3 } { 4 } { 5 } { 6 6 6 } } ]
 [ { 1 1 1 1 2 2 3 4 5 6 6 6 } [ = ] monotonic-split [ >array ] map ] unit-test
 
-[ 2 ] [ V{ 10 20 30 } [ delete-random drop ] keep length ] unit-test
-[ V{ } [ delete-random drop ] keep length ] must-fail
-
 [ { 1 9 25 } ] [ { 1 3 5 6 } [ sq ] [ even? ] map-until ] unit-test
 [ { 2 4 } ] [ { 2 4 1 3 } [ even? ] take-while ] unit-test
 
@@ -64,25 +57,9 @@ IN: sequences.lib.tests
 [ 3 ] [ { 1 2 3 } ?third ] unit-test
 [ f ] [ { 1 2 3 } ?fourth ] unit-test
 
-[ 50 ] [ 100 [1,b] [ even? ] count ] unit-test
-[ 50 ] [ 100 [1,b] [ odd? ] count ] unit-test
-[ 328350 ] [ 100 [ sq ] sigma ] unit-test
-
 [ 1 2 { 3 4 } [ + + ] 2 map-withn ] must-infer
 { { 6 7 } } [ 1 2 { 3 4 } [ + + ] 2 map-withn ] unit-test
 { { 16 17 18 19 20 } } [ 1 2 3 4 { 6 7 8 9 10 } [ + + + + ] 4 map-withn ] unit-test
 [ 1 2 { 3 4 } [ + + drop ] 2 each-withn  ] must-infer
 { 13 } [ 1 2 { 3 4 } [ + + ] 2 each-withn + ] unit-test
 [ { 910 911 912 } ] [ 10 900 3 [ + + ] map-with2 ] unit-test
-
-[ 1 2 3 4 ] [ { 1 2 3 4 } 4 firstn ] unit-test
-
-[ ] [ { } 0 firstn ] unit-test
-[ "a" ] [ { "a" } 1 firstn ] unit-test
-
-[ { { 1 1 } { 1 2 } { 2 0 } } ] [ { { 2 0 } { 1 1 } { 1 2 } } dup [ first ] insertion-sort ] unit-test
-[ "empty" ] [ { } [ "not empty" ] [ "empty" ] if-seq ] unit-test
-[ { 1 } "not empty" ] [ { 1 } [ "not empty" ] [ "empty" ] if-seq ] unit-test
-
-[ "empty" ] [ { } [ "empty" ] [ "not empty" ] if-empty ] unit-test
-[ { 1 } "not empty" ] [ { 1 } [ "empty" ] [ "not empty" ] if-empty ] unit-test
diff --git a/extra/sequences/lib/lib.factor b/extra/sequences/lib/lib.factor
index 5c34b7315b..225b3b7d9e 100755
--- a/extra/sequences/lib/lib.factor
+++ b/extra/sequences/lib/lib.factor
@@ -2,9 +2,10 @@
 !                    Eduardo Cavazos, Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: combinators.lib kernel sequences math namespaces assocs 
-random sequences.private shuffle math.functions mirrors
+random sequences.private shuffle math.functions
 arrays math.parser math.private sorting strings ascii macros
-assocs.lib quotations hashtables math.order locals ;
+assocs.lib quotations hashtables math.order locals
+generalizations ;
 IN: sequences.lib
 
 : each-withn ( seq quot n -- ) nwith each ; inline
@@ -19,26 +20,6 @@ IN: sequences.lib
 
 : map-with2 ( obj obj list quot -- newseq ) 2 map-withn ; inline
 
-MACRO: firstn ( n -- )
-    [ [ swap nth ] curry [ keep ] curry ] map
-    concat >quotation
-    [ drop ] compose ;
-
-: prepare-index ( seq quot -- seq n quot )
-    >r dup length r> ; inline
-
-: each-index ( seq quot -- )
-    #! quot: ( elt index -- )
-    prepare-index 2each ; inline
-
-: map-index ( seq quot -- )
-    #! quot: ( elt index -- obj )
-    prepare-index 2map ; inline
-
-: reduce-index ( seq identity quot -- )
-    #! quot: ( prev elt index -- next )
-    swapd each-index ; inline
-
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : each-percent ( seq quot -- )
@@ -51,14 +32,6 @@ MACRO: firstn ( n -- )
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: sigma ( seq quot -- n )
-    [ + ] compose 0 swap reduce ; inline
-
-: count ( seq quot -- n )
-    [ 1 0 ? ] compose sigma ; inline
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
 : map-reduce ( seq map-quot reduce-quot -- result )
     >r [ unclip ] dip [ call ] keep r> compose reduce ; inline
 
@@ -102,21 +75,22 @@ MACRO: firstn ( n -- )
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: ,, building get peek push ;
-: v, V{ } clone , ;
-: ,v building get dup peek empty? [ dup pop* ] when drop ;
+: ,, ( obj -- ) building get peek push ;
+: v, ( -- ) V{ } clone , ;
+: ,v ( -- ) building get dup peek empty? [ dup pop* ] when drop ;
 
-: monotonic-split ( seq quot -- newseq )
+: (monotonic-split) ( seq quot -- newseq )
     [
         >r dup unclip suffix r>
         v, [ pick ,, call [ v, ] unless ] curry 2each ,v
     ] { } make ;
 
-: delete-random ( seq -- value )
-    [ length random ] keep [ nth ] 2keep delete-nth ;
+: monotonic-split ( seq quot -- newseq )
+    over empty? [ 2drop { } ] [ (monotonic-split) ] if ;
 
+ERROR: element-not-found ;
 : split-around ( seq quot -- before elem after )
-    dupd find over [ "Element not found" throw ] unless
+    dupd find over [ element-not-found ] unless
     >r cut rest r> swap ; inline
 
 : (map-until) ( quot pred -- quot )
@@ -131,10 +105,6 @@ MACRO: firstn ( n -- )
     [ find drop [ head-slice ] when* ] curry
     [ dup ] prepose keep like ;
 
-: replicate ( seq quot -- newseq )
-    #! quot: ( -- obj )
-    [ drop ] prepose map ; inline
-
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 <PRIVATE
@@ -165,15 +135,6 @@ PRIVATE>
 : power-set ( seq -- subsets )
     2 over length exact-number-strings swap [ switches ] curry map ;
 
-: push-either ( elt quot accum1 accum2 -- )
-    >r >r keep swap r> r> ? push ; inline
-
-: 2pusher ( quot -- quot accum1 accum2 )
-    V{ } clone V{ } clone [ [ push-either ] 3curry ] 2keep ; inline
-
-: partition ( seq quot -- trueseq falseseq )
-    over >r 2pusher >r >r each r> r> r> drop ; inline
-
 : cut-find ( seq pred -- before after )
     dupd find drop dup [ cut ] when ;
 
@@ -205,9 +166,6 @@ USE: continuations
     >r >r 0 max r> r>
     [ length tuck min >r min r> ] keep subseq ;
 
-: accumulator ( quot -- quot vec )
-    V{ } clone [ [ push ] curry compose ] keep ; inline
-
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 ! List the positions of obj in seq
@@ -223,7 +181,7 @@ USE: continuations
     [
         iterate-step roll
         [ 3nip ] [ iterate-next (attempt-each-integer) ] if*
-    ] [ 3drop f ] if-iterate? ; inline
+    ] [ 3drop f ] if-iterate? ; inline recursive
 PRIVATE>
 
 : attempt-each ( seq quot -- result )
@@ -231,35 +189,3 @@ PRIVATE>
 
 : ?nth* ( n seq -- elt/f ? )
     2dup bounds-check? [ nth-unsafe t ] [ 2drop f f ] if ; flushable
-
-: nths ( seq indices -- seq' )
-    swap [ nth ] curry map ;
-
-: replace ( str oldseq newseq -- str' )
-    zip >hashtable substitute ;
-
-: remove-nth ( seq n -- seq' )
-    cut-slice rest-slice append ;
-
-: short ( seq n -- seq n' )
-    over length min ; inline
-
-<PRIVATE
-:: insert ( seq quot n -- )
-    n zero? [
-        n n 1- [ seq nth quot call ] bi@ >= [
-            n n 1- seq exchange
-            seq quot n 1- insert
-        ] unless
-    ] unless ; inline
-PRIVATE>
-
-: insertion-sort ( seq quot -- )
-    ! quot is a transformation on elements
-    over length [ insert ] 2with each ; inline
-
-: if-seq ( seq quot1 quot2 -- )
-    [ f like ] 2dip if* ; inline
-
-: if-empty ( seq quot1 quot2 -- )
-    swap if-seq ; inline
diff --git a/extra/sequences/modified/tags.txt b/extra/sequences/modified/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/extra/sequences/modified/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/sequences/repeating/repeating.factor b/extra/sequences/repeating/repeating.factor
index 92b0925907..77fddd5510 100644
--- a/extra/sequences/repeating/repeating.factor
+++ b/extra/sequences/repeating/repeating.factor
@@ -11,7 +11,7 @@ TUPLE: repeating circular len ;
 : repeated ( seq length -- new-seq )
     dupd <repeating> swap like ;
 
-M: repeating length repeating-len ;
+M: repeating length len>> ;
 M: repeating set-length (>>len) ;
 
 M: repeating virtual@ ( n seq -- n' seq' ) circular>> ;
diff --git a/extra/sequences/repeating/tags.txt b/extra/sequences/repeating/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/extra/sequences/repeating/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/windows/opengl32/authors.txt b/extra/serial/authors.txt
similarity index 100%
rename from extra/windows/opengl32/authors.txt
rename to extra/serial/authors.txt
diff --git a/extra/serial/serial.factor b/extra/serial/serial.factor
new file mode 100644
index 0000000000..df304e0f04
--- /dev/null
+++ b/extra/serial/serial.factor
@@ -0,0 +1,23 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien.c-types assocs combinators destructors
+kernel math math.bitwise math.parser sequences summary system
+vocabs.loader ;
+IN: serial
+
+TUPLE: serial stream path baud 
+    termios iflag oflag cflag lflag ;
+
+ERROR: invalid-baud baud ;
+M: invalid-baud summary ( invalid-baud -- string )
+    "Baud rate "
+    swap baud>> number>string
+    " not supported" 3append ;
+
+HOOK: lookup-baud os ( m -- n )
+HOOK: open-serial os ( serial -- serial' )
+M: serial dispose ( serial -- ) stream>> dispose ;
+
+{
+    { [ os unix? ] [ "serial.unix" ] } 
+} cond require
diff --git a/extra/serial/summary.txt b/extra/serial/summary.txt
new file mode 100644
index 0000000000..5ccd99dbaa
--- /dev/null
+++ b/extra/serial/summary.txt
@@ -0,0 +1 @@
+Serial port library
diff --git a/extra/serial/tags.txt b/extra/serial/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/bsd/bsd.factor b/extra/serial/unix/bsd/bsd.factor
new file mode 100644
index 0000000000..d31d947dcb
--- /dev/null
+++ b/extra/serial/unix/bsd/bsd.factor
@@ -0,0 +1,86 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax kernel math.bitwise sequences system serial ;
+IN: serial.unix
+
+M: bsd lookup-baud ( m -- n )
+    dup {
+        0 50 75 110 134 150 200 300 600 1200 1800 2400 4800
+        7200 9600 14400 19200 28800 38400 57600 76800 115200
+        230400 460800 921600
+    } member? [ invalid-baud ] unless ;
+
+: TCSANOW     0 ; inline
+: TCSADRAIN   1 ; inline
+: TCSAFLUSH   2 ; inline
+: TCSASOFT    HEX: 10 ; inline
+
+: TCIFLUSH    1 ; inline
+: TCOFLUSH    2 ; inline
+: TCIOFLUSH   3 ; inline
+: TCOOFF      1 ; inline
+: TCOON       2 ; inline
+: TCIOFF      3 ; inline
+: TCION       4 ; inline
+
+! iflags
+: IGNBRK      HEX: 00000001 ; inline
+: BRKINT      HEX: 00000002 ; inline
+: IGNPAR      HEX: 00000004 ; inline
+: PARMRK      HEX: 00000008 ; inline
+: INPCK       HEX: 00000010 ; inline
+: ISTRIP      HEX: 00000020 ; inline
+: INLCR       HEX: 00000040 ; inline
+: IGNCR       HEX: 00000080 ; inline
+: ICRNL       HEX: 00000100 ; inline
+: IXON        HEX: 00000200 ; inline
+: IXOFF       HEX: 00000400 ; inline
+: IXANY       HEX: 00000800 ; inline
+: IMAXBEL     HEX: 00002000 ; inline
+: IUTF8       HEX: 00004000 ; inline
+
+! oflags
+: OPOST       HEX: 00000001 ; inline
+: ONLCR       HEX: 00000002 ; inline
+: OXTABS      HEX: 00000004 ; inline
+: ONOEOT      HEX: 00000008 ; inline
+
+! cflags
+: CIGNORE     HEX: 00000001 ; inline
+: CSIZE       HEX: 00000300 ; inline
+: CS5         HEX: 00000000 ; inline
+: CS6         HEX: 00000100 ; inline
+: CS7         HEX: 00000200 ; inline
+: CS8         HEX: 00000300 ; inline
+: CSTOPB      HEX: 00000400 ; inline
+: CREAD       HEX: 00000800 ; inline
+: PARENB      HEX: 00001000 ; inline
+: PARODD      HEX: 00002000 ; inline
+: HUPCL       HEX: 00004000 ; inline
+: CLOCAL      HEX: 00008000 ; inline
+: CCTS_OFLOW  HEX: 00010000 ; inline
+: CRTS_IFLOW  HEX: 00020000 ; inline
+: CRTSCTS     { CCTS_OFLOW CRTS_IFLOW } flags ; inline
+: CDTR_IFLOW  HEX: 00040000 ; inline
+: CDSR_OFLOW  HEX: 00080000 ; inline
+: CCAR_OFLOW  HEX: 00100000 ; inline
+: MDMBUF      HEX: 00100000 ; inline
+
+! lflags
+: ECHOKE      HEX: 00000001 ; inline
+: ECHOE       HEX: 00000002 ; inline
+: ECHOK       HEX: 00000004 ; inline
+: ECHO        HEX: 00000008 ; inline
+: ECHONL      HEX: 00000010 ; inline
+: ECHOPRT     HEX: 00000020 ; inline
+: ECHOCTL     HEX: 00000040 ; inline
+: ISIG        HEX: 00000080 ; inline
+: ICANON      HEX: 00000100 ; inline
+: ALTWERASE   HEX: 00000200 ; inline
+: IEXTEN      HEX: 00000400 ; inline
+: EXTPROC     HEX: 00000800 ; inline
+: TOSTOP      HEX: 00400000 ; inline
+: FLUSHO      HEX: 00800000 ; inline
+: NOKERNINFO  HEX: 02000000 ; inline
+: PENDIN      HEX: 20000000 ; inline
+: NOFLSH      HEX: 80000000 ; inline
diff --git a/extra/serial/unix/bsd/tags.txt b/extra/serial/unix/bsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/unix/bsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/linux/linux.factor b/extra/serial/unix/linux/linux.factor
new file mode 100644
index 0000000000..3ad5088fc8
--- /dev/null
+++ b/extra/serial/unix/linux/linux.factor
@@ -0,0 +1,130 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: assocs alien.syntax kernel serial system unix ;
+IN: serial.unix
+
+: TCSANOW     0 ; inline
+: TCSADRAIN   1 ; inline
+: TCSAFLUSH   2 ; inline
+
+: TCIFLUSH    0 ; inline
+: TCOFLUSH    1 ; inline
+: TCIOFLUSH   2 ; inline
+
+: TCOOFF      0 ; inline
+: TCOON       1 ; inline
+: TCIOFF      2 ; inline
+: TCION       3 ; inline
+
+! iflag
+: IGNBRK  OCT: 0000001 ; inline
+: BRKINT  OCT: 0000002 ; inline
+: IGNPAR  OCT: 0000004 ; inline
+: PARMRK  OCT: 0000010 ; inline
+: INPCK   OCT: 0000020 ; inline
+: ISTRIP  OCT: 0000040 ; inline
+: INLCR   OCT: 0000100 ; inline
+: IGNCR   OCT: 0000200 ; inline
+: ICRNL   OCT: 0000400 ; inline
+: IUCLC   OCT: 0001000 ; inline
+: IXON    OCT: 0002000 ; inline
+: IXANY   OCT: 0004000 ; inline
+: IXOFF   OCT: 0010000 ; inline
+: IMAXBEL OCT: 0020000 ; inline
+: IUTF8   OCT: 0040000 ; inline
+
+! oflag
+: OPOST   OCT: 0000001 ; inline
+: OLCUC   OCT: 0000002 ; inline
+: ONLCR   OCT: 0000004 ; inline
+: OCRNL   OCT: 0000010 ; inline
+: ONOCR   OCT: 0000020 ; inline
+: ONLRET  OCT: 0000040 ; inline
+: OFILL   OCT: 0000100 ; inline
+: OFDEL   OCT: 0000200 ; inline
+: NLDLY  OCT: 0000400 ; inline
+:   NL0  OCT: 0000000 ; inline
+:   NL1  OCT: 0000400 ; inline
+: CRDLY  OCT: 0003000 ; inline
+:   CR0  OCT: 0000000 ; inline
+:   CR1  OCT: 0001000 ; inline
+:   CR2  OCT: 0002000 ; inline
+:   CR3  OCT: 0003000 ; inline
+: TABDLY OCT: 0014000 ; inline
+:   TAB0 OCT: 0000000 ; inline
+:   TAB1 OCT: 0004000 ; inline
+:   TAB2 OCT: 0010000 ; inline
+:   TAB3 OCT: 0014000 ; inline
+: BSDLY  OCT: 0020000 ; inline
+:   BS0  OCT: 0000000 ; inline
+:   BS1  OCT: 0020000 ; inline
+: FFDLY  OCT: 0100000 ; inline
+:   FF0  OCT: 0000000 ; inline
+:   FF1  OCT: 0100000 ; inline
+
+! cflags
+: CSIZE   OCT: 0000060 ; inline
+:   CS5   OCT: 0000000 ; inline
+:   CS6   OCT: 0000020 ; inline
+:   CS7   OCT: 0000040 ; inline
+:   CS8   OCT: 0000060 ; inline
+: CSTOPB  OCT: 0000100 ; inline
+: CREAD   OCT: 0000200 ; inline
+: PARENB  OCT: 0000400 ; inline
+: PARODD  OCT: 0001000 ; inline
+: HUPCL   OCT: 0002000 ; inline
+: CLOCAL  OCT: 0004000 ; inline
+: CIBAUD  OCT: 002003600000 ; inline
+: CRTSCTS OCT: 020000000000 ; inline
+
+! lflags
+: ISIG    OCT: 0000001 ; inline
+: ICANON  OCT: 0000002 ; inline
+: XCASE  OCT: 0000004 ; inline
+: ECHO    OCT: 0000010 ; inline
+: ECHOE   OCT: 0000020 ; inline
+: ECHOK   OCT: 0000040 ; inline
+: ECHONL  OCT: 0000100 ; inline
+: NOFLSH  OCT: 0000200 ; inline
+: TOSTOP  OCT: 0000400 ; inline
+: ECHOCTL OCT: 0001000 ; inline
+: ECHOPRT OCT: 0002000 ; inline
+: ECHOKE  OCT: 0004000 ; inline
+: FLUSHO  OCT: 0010000 ; inline
+: PENDIN  OCT: 0040000 ; inline
+: IEXTEN  OCT: 0100000 ; inline
+
+M: linux lookup-baud ( n -- n )
+    dup H{
+        { 0 OCT: 0000000 }
+        { 50    OCT: 0000001 }
+        { 75    OCT: 0000002 }
+        { 110   OCT: 0000003 }
+        { 134   OCT: 0000004 }
+        { 150   OCT: 0000005 }
+        { 200   OCT: 0000006 }
+        { 300   OCT: 0000007 }
+        { 600   OCT: 0000010 }
+        { 1200  OCT: 0000011 }
+        { 1800  OCT: 0000012 }
+        { 2400  OCT: 0000013 }
+        { 4800  OCT: 0000014 }
+        { 9600  OCT: 0000015 }
+        { 19200 OCT: 0000016 }
+        { 38400 OCT: 0000017 }
+        { 57600   OCT: 0010001 }
+        { 115200  OCT: 0010002 }
+        { 230400  OCT: 0010003 }
+        { 460800  OCT: 0010004 }
+        { 500000  OCT: 0010005 }
+        { 576000  OCT: 0010006 }
+        { 921600  OCT: 0010007 }
+        { 1000000 OCT: 0010010 }
+        { 1152000 OCT: 0010011 }
+        { 1500000 OCT: 0010012 }
+        { 2000000 OCT: 0010013 }
+        { 2500000 OCT: 0010014 }
+        { 3000000 OCT: 0010015 }
+        { 3500000 OCT: 0010016 }
+        { 4000000 OCT: 0010017 }
+    } at* [ nip ] [ drop invalid-baud ] if ;
diff --git a/extra/serial/unix/linux/tags.txt b/extra/serial/unix/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/unix/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/tags.txt b/extra/serial/unix/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/unix/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/termios/bsd/bsd.factor b/extra/serial/unix/termios/bsd/bsd.factor
new file mode 100644
index 0000000000..5fbc571519
--- /dev/null
+++ b/extra/serial/unix/termios/bsd/bsd.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax kernel sequences system ;
+IN: serial.unix.termios
+
+: NCCS 20 ; inline
+
+TYPEDEF: uint tcflag_t
+TYPEDEF: uchar cc_t
+TYPEDEF: uint speed_t
+
+C-STRUCT: termios
+    { "tcflag_t" "iflag" }           !  input mode flags
+    { "tcflag_t" "oflag" }           !  output mode flags
+    { "tcflag_t" "cflag" }           !  control mode flags
+    { "tcflag_t" "lflag" }           !  local mode flags
+    { { "cc_t" NCCS } "cc" }         !  control characters
+    { "speed_t" "ispeed" }           !  input speed
+    { "speed_t" "ospeed" } ;         !  output speed
diff --git a/extra/serial/unix/termios/bsd/tags.txt b/extra/serial/unix/termios/bsd/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/unix/termios/bsd/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/termios/linux/linux.factor b/extra/serial/unix/termios/linux/linux.factor
new file mode 100644
index 0000000000..de9906e2b9
--- /dev/null
+++ b/extra/serial/unix/termios/linux/linux.factor
@@ -0,0 +1,20 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.syntax kernel system unix ;
+IN: serial.unix.termios
+
+: NCCS 32 ; inline
+
+TYPEDEF: uchar cc_t
+TYPEDEF: uint speed_t
+TYPEDEF: uint tcflag_t
+
+C-STRUCT: termios
+    { "tcflag_t" "iflag" }           !  input mode flags
+    { "tcflag_t" "oflag" }           !  output mode flags
+    { "tcflag_t" "cflag" }           !  control mode flags
+    { "tcflag_t" "lflag" }           !  local mode flags
+    { "cc_t" "line" }                !  line discipline
+    { { "cc_t" NCCS } "cc" }         !  control characters
+    { "speed_t" "ispeed" }           !  input speed
+    { "speed_t" "ospeed" } ;         !  output speed
diff --git a/extra/serial/unix/termios/linux/tags.txt b/extra/serial/unix/termios/linux/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/unix/termios/linux/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/termios/tags.txt b/extra/serial/unix/termios/tags.txt
new file mode 100644
index 0000000000..6bf68304bb
--- /dev/null
+++ b/extra/serial/unix/termios/tags.txt
@@ -0,0 +1 @@
+unportable
diff --git a/extra/serial/unix/termios/termios.factor b/extra/serial/unix/termios/termios.factor
new file mode 100644
index 0000000000..901416d62c
--- /dev/null
+++ b/extra/serial/unix/termios/termios.factor
@@ -0,0 +1,9 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: combinators system vocabs.loader ;
+IN: serial.unix.termios
+
+{
+    { [ os linux? ] [ "serial.unix.termios.linux" ] }
+    { [ os bsd? ] [ "serial.unix.termios.bsd" ] }
+} cond require
diff --git a/extra/serial/unix/unix-tests.factor b/extra/serial/unix/unix-tests.factor
new file mode 100644
index 0000000000..e9126a5961
--- /dev/null
+++ b/extra/serial/unix/unix-tests.factor
@@ -0,0 +1,21 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel math.bitwise serial serial.unix ;
+IN: serial.unix
+
+: serial-obj ( -- obj )
+    serial new
+    "/dev/ttyS0" >>path
+    19200 >>baud
+    { IGNPAR ICRNL } flags >>iflag
+    { } flags >>oflag
+    { CS8 CLOCAL CREAD } flags >>cflag
+    { ICANON } flags >>lflag ;
+
+: serial-test ( -- serial )
+    serial-obj
+    open-serial
+    dup get-termios >>termios
+    dup configure-termios
+    dup tciflush
+    dup apply-termios ;
diff --git a/extra/serial/unix/unix.factor b/extra/serial/unix/unix.factor
new file mode 100644
index 0000000000..90dbd185bd
--- /dev/null
+++ b/extra/serial/unix/unix.factor
@@ -0,0 +1,63 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien.c-types alien.syntax combinators io.ports
+io.streams.duplex io.unix.backend system kernel math math.bitwise
+vocabs.loader unix serial serial.unix.termios ;
+IN: serial.unix
+
+<< {
+    { [ os linux? ] [ "serial.unix.linux" ] }
+    { [ os bsd? ] [ "serial.unix.bsd" ] }
+} cond require >>
+
+FUNCTION: speed_t cfgetispeed ( termios* t ) ;
+FUNCTION: speed_t cfgetospeed ( termios* t ) ;
+FUNCTION: int cfsetispeed ( termios* t, speed_t s ) ;
+FUNCTION: int cfsetospeed ( termios* t, speed_t s ) ;
+FUNCTION: int tcgetattr ( int i1, termios* t ) ;
+FUNCTION: int tcsetattr ( int i1, int i2, termios* t ) ;
+FUNCTION: int tcdrain ( int i1 ) ;
+FUNCTION: int tcflow ( int i1, int i2 ) ;
+FUNCTION: int tcflush ( int i1, int i2 ) ;
+FUNCTION: int tcsendbreak ( int i1, int i2 ) ;
+FUNCTION: void cfmakeraw ( termios* t ) ;
+FUNCTION: int cfsetspeed ( termios* t, speed_t s ) ;
+
+: fd>duplex-stream ( fd -- duplex-stream )
+    <fd> init-fd
+    [ <input-port> ] [ <output-port> ] bi <duplex-stream> ;
+
+: open-rw ( path -- fd ) O_RDWR file-mode open-file  ;
+: <file-rw> ( path -- stream ) open-rw fd>duplex-stream ;
+
+M: unix open-serial ( serial -- serial' )
+    dup
+    path>> { O_RDWR O_NOCTTY O_NDELAY } flags file-mode open-file
+    fd>duplex-stream >>stream ;
+
+: serial-fd ( serial -- fd )
+    stream>> in>> handle>> fd>> ;
+
+: get-termios ( serial -- termios )
+    serial-fd
+    "termios" <c-object> [ tcgetattr io-error ] keep ;
+
+: configure-termios ( serial -- )
+    dup termios>>
+    {
+        [ [ iflag>> ] dip over [ set-termios-iflag ] [ 2drop ] if ]
+        [ [ oflag>> ] dip over [ set-termios-oflag ] [ 2drop ] if ]
+        [
+            [
+                [ cflag>> 0 or ] [ baud>> lookup-baud ] bi bitor
+            ] dip set-termios-cflag
+        ]
+        [ [ lflag>> ] dip over [ set-termios-lflag ] [ 2drop ] if ]
+    } 2cleave ;
+
+: tciflush ( serial -- )
+    serial-fd TCIFLUSH tcflush io-error ;
+
+: apply-termios ( serial -- )
+    [ serial-fd TCSANOW ]
+    [ termios>> ] bi tcsetattr io-error ;
diff --git a/extra/shell/shell.factor b/extra/shell/shell.factor
index 8ba5b66d5a..0ed594602a 100644
--- a/extra/shell/shell.factor
+++ b/extra/shell/shell.factor
@@ -2,7 +2,8 @@
 USING: kernel parser words continuations namespaces debugger
        sequences combinators splitting prettyprint
        system io io.files io.launcher io.encodings.utf8 io.pipes sequences.deep
-       accessors multi-methods newfx shell.parser ;
+       accessors multi-methods newfx shell.parser
+       combinators.short-circuit eval ;
 
 IN: shell
 
@@ -49,7 +50,6 @@ DEFER: expansion
 METHOD: expand { back-quoted-expr }
   expr>>
   expr
-  ast>>
   command>>
   expansion
   utf8 <process-stream>
@@ -121,7 +121,7 @@ DEFER: shell
     { [ dup f = ]      [ drop ] }
     { [ dup "exit" = ] [ drop ] }
     { [ dup "" = ]     [ drop shell ] }
-    { [ dup expr ]     [ expr ast>> chant shell ] }
+    { [ dup expr ]     [ expr chant shell ] }
     { [ t ]            [ drop "ix: ignoring input" print shell ] }
   }
     cond ;
diff --git a/extra/shuffle/shuffle-docs.factor b/extra/shuffle/shuffle-docs.factor
deleted file mode 100755
index 4caace3b00..0000000000
--- a/extra/shuffle/shuffle-docs.factor
+++ /dev/null
@@ -1,84 +0,0 @@
-! Copyright (C) 2007 Chris Double.
-! See http://factorcode.org/license.txt for BSD license.
-USING: help.syntax help.markup kernel sequences ;
-IN: shuffle
-
-HELP: npick
-{ $values { "n" "a number" } }
-{ $description "A generalisation of " { $link dup } ", "
-{ $link over } " and " { $link pick } " that can work "
-"for any stack depth. The nth item down the stack will be copied and "
-"placed on the top of the stack."
-}
-{ $examples
-  { $example "USING: prettyprint shuffle ;" "1 2 3 4 4 npick .s" "1\n2\n3\n4\n1" }
-}
-{ $see-also dup over pick } ;
-
-HELP: ndup
-{ $values { "n" "a number" } }
-{ $description "A generalisation of " { $link dup } ", "
-{ $link 2dup } " and " { $link 3dup } " that can work "
-"for any number of items. The n topmost items on the stack will be copied and "
-"placed on the top of the stack."
-}
-{ $examples
-  { $example "USING: prettyprint shuffle ;" "1 2 3 4 4 ndup .s" "1\n2\n3\n4\n1\n2\n3\n4" }
-}
-{ $see-also dup 2dup 3dup } ;
-
-HELP: nnip
-{ $values { "n" "a number" } }
-{ $description "A generalisation of " { $link nip } " and " { $link 2nip }
-" that can work "
-"for any number of items."
-}
-{ $examples
-  { $example "USING: prettyprint shuffle ;" "1 2 3 4 3 nnip .s" "4" }
-}
-{ $see-also nip 2nip } ;
-
-HELP: ndrop
-{ $values { "n" "a number" } }
-{ $description "A generalisation of " { $link drop }
-" that can work "
-"for any number of items."
-}
-{ $examples
-  { $example "USING: prettyprint shuffle ;" "1 2 3 4 3 ndrop .s" "1" }
-}
-{ $see-also drop 2drop 3drop } ;
-
-HELP: nrot
-{ $values { "n" "a number" } }
-{ $description "A generalisation of " { $link rot } " that works for any "
-"number of items on the stack. "
-}
-{ $examples
-  { $example "USING: prettyprint shuffle ;" "1 2 3 4 4 nrot .s" "2\n3\n4\n1" }
-}
-{ $see-also rot -nrot } ;
-
-HELP: -nrot
-{ $values { "n" "a number" } }
-{ $description "A generalisation of " { $link -rot } " that works for any "
-"number of items on the stack. "
-}
-{ $examples
-  { $example "USING: prettyprint shuffle ;" "1 2 3 4 4 -nrot .s" "4\n1\n2\n3" }
-}
-{ $see-also rot nrot } ;
-
-ARTICLE: { "shuffle" "overview" } "Extra shuffle words"
-"A number of stack shuffling words for those rare times when you "
-"need to deal with tricky stack situations and can't refactor the "
-"code to work around it."
-{ $subsection ndup }
-{ $subsection npick }
-{ $subsection nrot }
-{ $subsection -nrot }
-{ $subsection nnip }
-{ $subsection ndrop }  ;
-
-IN: shuffle
-ABOUT: { "shuffle" "overview" }
\ No newline at end of file
diff --git a/extra/shuffle/shuffle-tests.factor b/extra/shuffle/shuffle-tests.factor
deleted file mode 100755
index 9f2b8e01a9..0000000000
--- a/extra/shuffle/shuffle-tests.factor
+++ /dev/null
@@ -1,25 +0,0 @@
-USING: arrays shuffle kernel math tools.test inference words ;
-
-[ 8 ] [ 5 6 7 8 3nip ] unit-test
-{ 1 2 3 4 1 } [ 1 2 3 4 4 npick ] unit-test
-{ 1 2 3 4 2 } [ 1 2 3 4 3 npick ] unit-test
-{ 1 2 3 4 3 } [ 1 2 3 4 2 npick ] unit-test
-{ 1 2 3 4 4 } [ 1 2 3 4 1 npick ] unit-test
-{ t } [ [ 1 1 ndup ] infer >boolean ] unit-test
-{ 1 1 } [ 1 1 ndup ] unit-test
-{ 1 2 1 2 } [ 1 2 2 ndup ] unit-test
-{ 1 2 3 1 2 3 } [ 1 2 3 3 ndup ] unit-test
-{ 1 2 3 4 1 2 3 4 } [ 1 2 3 4 4 ndup ] unit-test
-{ t } [ [ 1 2 2 nrot ] infer >boolean ] unit-test
-{ 2 1 } [ 1 2 2 nrot ] unit-test
-{ 2 3 1 } [ 1 2 3 3 nrot ] unit-test
-{ 2 3 4 1 } [ 1 2 3 4 4 nrot ] unit-test
-{ t } [ [ 1 2 2 -nrot ] infer >boolean ] unit-test
-{ 2 1 } [ 1 2 2 -nrot ] unit-test
-{ 3 1 2 } [ 1 2 3 3 -nrot ] unit-test
-{ 4 1 2 3 } [ 1 2 3 4 4 -nrot ] unit-test
-{ t } [ [ 1 2 3 4 3 nnip ] infer >boolean ] unit-test
-{ 4 } [ 1 2 3 4 3 nnip ] unit-test
-{ t } [ [ 1 2 3 4 4 ndrop ] infer >boolean ] unit-test
-{ 0 } [ 0 1 2 3 4 4 ndrop ] unit-test
-[ 3 1 2 3 ] [ 1 2 3 tuckd ] unit-test
diff --git a/extra/shuffle/shuffle.factor b/extra/shuffle/shuffle.factor
deleted file mode 100644
index 2366d15cff..0000000000
--- a/extra/shuffle/shuffle.factor
+++ /dev/null
@@ -1,39 +0,0 @@
-! Copyright (C) 2007 Chris Double, Doug Coleman.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel sequences namespaces math inference.transforms
-       combinators macros quotations math.ranges fry ;
-
-IN: shuffle
-
-MACRO: npick ( n -- ) 1- dup saver [ dup ] rot [ r> swap ] n*quot 3append ;
-
-MACRO: ndup ( n -- ) dup [ npick ] curry n*quot ;
-
-MACRO: nrot ( n -- ) 1- dup saver swap [ r> swap ] n*quot append ;
-
-MACRO: -nrot ( n -- ) 1- dup [ swap >r ] n*quot swap restorer append ;
-
-MACRO: ndrop ( n -- ) [ drop ] n*quot ;
-
-: nnip ( n -- ) swap >r ndrop r> ; inline
-
-MACRO: ntuck ( n -- ) 2 + '[ dup , -nrot ] ;
-
-: 2swap ( x y z t -- z t x y ) rot >r rot r> ; inline
-
-: nipd ( a b c -- b c ) rot drop ; inline
-
-: 3nip ( a b c d -- d ) 3 nnip ; inline
-
-: 4nip ( a b c d e -- e ) 4 nnip ; inline
-
-: 4dup ( a b c d -- a b c d a b c d ) 4 ndup ; inline
-
-: 4drop ( a b c d -- ) 3drop drop ; inline
-
-: tuckd ( x y z -- z x y z ) 2 ntuck ; inline
-
-MACRO: nrev ( n -- quot )
-  [ 1+ ] map
-  reverse
-  [ [ -nrot ] curry ] map concat ;
diff --git a/extra/size-of/size-of.factor b/extra/size-of/size-of.factor
index a2b47fc0aa..8157ba7dcf 100644
--- a/extra/size-of/size-of.factor
+++ b/extra/size-of/size-of.factor
@@ -12,15 +12,15 @@ IN: size-of
 VAR: headers
 
 : include-headers ( -- seq )
-  headers> [ { "#include <" , ">" } bake to-string ] map ;
+  headers> [ `{ "#include <" , ">" } to-string ] map ;
 
 : size-of-c-program ( type -- lines )
-  {
+  `{
     "#include <stdio.h>"
     include-headers
     { "main() { printf( \"%i\" , sizeof( " , " ) ) ; }" }
   }
-  bake to-strings ;
+  to-strings ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
diff --git a/extra/slides/slides.factor b/extra/slides/slides.factor
index b58253381c..a3031a7557 100755
--- a/extra/slides/slides.factor
+++ b/extra/slides/slides.factor
@@ -1,7 +1,9 @@
+! Copyright (C) 2007, 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
 USING: arrays hashtables help.markup help.stylesheet io
 io.styles kernel math models namespaces sequences ui ui.gadgets
 ui.gadgets.books ui.gadgets.panes ui.gestures ui.render
-parser ;
+parser accessors colors ;
 IN: slides
 
 : stylesheet
@@ -21,14 +23,14 @@ IN: slides
             H{
                 { font "monospace" }
                 { font-size 36 }
-                { page-color { 0.4 0.4 0.4 0.3 } }
+                { page-color T{ rgba f 0.4 0.4 0.4 0.3 } }
             }
         }
         { snippet-style
             H{
                 { font "monospace" }
                 { font-size 36 }
-                { foreground { 0.1 0.1 0.4 1 } }
+                { foreground T{ rgba f 0.1 0.1 0.4 1 } }
             }
         }
         { table-content-style
@@ -46,16 +48,20 @@ IN: slides
 : $divider ( -- )
     [
         <gadget>
-        T{ gradient f { { 0.25 0.25 0.25 1.0 } { 1.0 1.0 1.0 0.0 } } }
-        over set-gadget-interior
-        { 800 10 } over set-gadget-dim
-        { 1 0 } over set-gadget-orientation
+        T{ gradient f
+           {
+             T{ rgba f 0.25 0.25 0.25 1.0 }
+             T{ rgba f 1.0 1.0 1.0 0.0 }
+           }
+         } >>interior
+        { 800 10 } >>dim
+        { 1 0 } >>orientation
         gadget.
     ] ($block) ;
 
-: page-theme
-    T{ gradient f { { 0.8 0.8 1.0 1.0 } { 0.8 1.0 1.0 1.0 } } }
-    swap set-gadget-interior ;
+: page-theme ( gadget -- )
+    T{ gradient f { T{ rgba f 0.8 0.8 1.0 1.0 } T{ rgba f 0.8 1.0 1.0 1.0 } } }
+    >>interior drop ;
 
 : <page> ( list -- gadget )
     [
@@ -70,16 +76,14 @@ IN: slides
     $divider
     $list ;
 
-TUPLE: slides ;
+TUPLE: slides < book ;
 
 : <slides> ( slides -- gadget )
-    [ <page> ] map 0 <model> <book>
-    slides construct-gadget
-    [ set-gadget-delegate ] keep ;
+    [ <page> ] map 0 <model> slides new-book ;
 
 : change-page ( book n -- )
-    over control-value + over gadget-children length rem
-    swap gadget-model set-model ;
+    over control-value + over children>> length rem
+    swap model>> set-model ;
 
 : next-page ( book -- ) 1 change-page ;
 
@@ -103,5 +107,3 @@ TUPLE: slides ;
 
 : slides-window ( slides -- )
     [ <slides> "Slides" open-window ] with-ui ;
-
-MAIN: slides-window
diff --git a/extra/smtp/smtp.factor b/extra/smtp/smtp.factor
deleted file mode 100755
index 8fdc0e07a4..0000000000
--- a/extra/smtp/smtp.factor
+++ /dev/null
@@ -1,176 +0,0 @@
-! Copyright (C) 2007, 2008 Elie CHAFTARI, Dirk Vleugels,
-! Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces io io.timeouts kernel logging io.sockets
-sequences combinators sequences.lib splitting assocs strings
-math.parser random system calendar io.encodings.ascii
-calendar.format accessors sets ;
-IN: smtp
-
-SYMBOL: smtp-domain
-SYMBOL: smtp-server     "localhost" "smtp" <inet> smtp-server set-global
-SYMBOL: read-timeout    1 minutes read-timeout set-global
-SYMBOL: esmtp           t esmtp set-global
-
-LOG: log-smtp-connection NOTICE ( addrspec -- )
-
-: with-smtp-connection ( quot -- )
-    smtp-server get
-    dup log-smtp-connection
-    ascii [
-        smtp-domain [ host-name or ] change
-        read-timeout get timeouts
-        call
-    ] with-client ; inline
-
-: crlf "\r\n" write ;
-
-: command ( string -- ) write crlf flush ;
-
-: helo ( -- )
-    esmtp get "EHLO " "HELO " ? host-name append command ;
-
-: validate-address ( string -- string' )
-    #! Make sure we send funky stuff to the server by accident.
-    dup "\r\n>" intersect empty?
-    [ "Bad e-mail address: " prepend throw ] unless ;
-
-: mail-from ( fromaddr -- )
-    "MAIL FROM:<" swap validate-address ">" 3append command ;
-
-: rcpt-to ( to -- )
-    "RCPT TO:<" swap validate-address ">" 3append command ;
-
-: data ( -- )
-    "DATA" command ;
-
-: validate-message ( msg -- msg' )
-    "." over member? [ "Message cannot contain . on a line by itself" throw ] when ;
-
-: send-body ( body -- )
-    string-lines
-    validate-message
-    [ write crlf ] each
-    "." command ;
-
-: quit ( -- )
-    "QUIT" command ;
-
-LOG: smtp-response DEBUG
-
-: check-response ( response -- )
-    {
-        { [ dup "220" head? ] [ smtp-response ] }
-        { [ dup "235" swap subseq? ] [ smtp-response ] }
-        { [ dup "250" head? ] [ smtp-response ] }
-        { [ dup "221" head? ] [ smtp-response ] }
-        { [ dup "bye" head? ] [ smtp-response ] }
-        { [ dup "4" head? ] [ "server busy" throw ] }
-        { [ dup "354" head? ] [ smtp-response ] }
-        { [ dup "50" head? ] [ smtp-response "syntax error" throw ] }
-        { [ dup "53" head? ] [ smtp-response "invalid authentication data" throw ] }
-        { [ dup "55" head? ] [ smtp-response "fatal error" throw ] }
-        [ "unknown error" throw ]
-    } cond ;
-
-: multiline? ( response -- boolean )
-    ?fourth CHAR: - = ;
-
-: process-multiline ( multiline -- response )
-    >r readln r> 2dup " " append head? [
-        drop dup smtp-response
-    ] [
-        swap check-response process-multiline
-    ] if ;
-
-: receive-response ( -- response )
-    readln
-    dup multiline? [ 3 head process-multiline ] when ;
-
-: get-ok ( -- ) receive-response check-response ;
-
-: validate-header ( string -- string' )
-    dup "\r\n" intersect empty?
-    [ "Invalid header string: " prepend throw ] unless ;
-
-: write-header ( key value -- )
-    swap
-    validate-header write
-    ": " write
-    validate-header write
-    crlf ;
-
-: write-headers ( assoc -- )
-    [ write-header ] assoc-each ;
-
-TUPLE: email from to subject headers body ;
-
-M: email clone
-    call-next-method [ clone ] change-headers ;
-
-: (send) ( email -- )
-    [
-        helo get-ok
-        dup from>> mail-from get-ok
-        dup to>> [ rcpt-to get-ok ] each
-        data get-ok
-        dup headers>> write-headers
-        crlf
-        body>> send-body get-ok
-        quit get-ok
-    ] with-smtp-connection ;
-
-: extract-email ( recepient -- email )
-    #! This could be much smarter.
-    " " last-split1 swap or "<" ?head drop ">" ?tail drop ;
-
-: message-id ( -- string )
-    [
-        "<" %
-        64 random-bits #
-        "-" %
-        millis #
-        "@" %
-        smtp-domain get [ host-name ] unless* %
-        ">" %
-    ] "" make ;
-
-: set-header ( email value key -- email )
-    pick headers>> set-at ;
-
-: prepare ( email -- email )
-    clone
-    dup from>> "From" set-header
-    [ extract-email ] change-from
-    dup to>> ", " join "To" set-header
-    [ [ extract-email ] map ] change-to
-    dup subject>> "Subject" set-header
-    now timestamp>rfc822 "Date" set-header
-    message-id "Message-Id" set-header ;
-
-: <email> ( -- email )
-    email new
-    H{ } clone >>headers ;
-
-: send-email ( email -- )
-    prepare (send) ;
-
-! Dirk's old AUTH CRAM-MD5 code. I don't know anything about
-! CRAM MD5, and the old code didn't work properly either, so here
-! it is in case anyone wants to fix it later.
-!
-! check-response used to have this clause:
-! { [ dup "334" head? ] [ " " split 1 swap nth base64> challenge set ] }
-!
-! and the rest of the code was as follows:
-! : (cram-md5-auth) ( -- response )
-!     swap challenge get 
-!     string>md5-hmac hex-string 
-!     " " prepend append 
-!     >base64 ;
-! 
-! : cram-md5-auth ( key login  -- )
-!     "AUTH CRAM-MD5\r\n" get-ok 
-!     (cram-md5-auth) "\r\n" append get-ok ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
diff --git a/unmaintained/network-clipboard/authors.txt b/extra/soundex/author.txt
old mode 100755
new mode 100644
similarity index 100%
rename from unmaintained/network-clipboard/authors.txt
rename to extra/soundex/author.txt
diff --git a/extra/soundex/soundex-tests.factor b/extra/soundex/soundex-tests.factor
new file mode 100644
index 0000000000..f4bd18e34b
--- /dev/null
+++ b/extra/soundex/soundex-tests.factor
@@ -0,0 +1,5 @@
+IN: soundex.tests
+USING: soundex tools.test ;
+
+[ "S162" ] [ "supercalifrag" soundex ] unit-test
+[ "M000" ] [ "M" soundex ] unit-test
diff --git a/extra/soundex/soundex.factor b/extra/soundex/soundex.factor
new file mode 100644
index 0000000000..d0da0b1347
--- /dev/null
+++ b/extra/soundex/soundex.factor
@@ -0,0 +1,33 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences sequences.lib grouping assocs kernel ascii
+unicode.case tr ;
+IN: soundex
+
+TR: soundex-tr
+    ch>upper
+    "AEHIOUWYBFPVCGJKQSXZDTLMNR"
+    "00000000111122222222334556" ;
+
+: remove-duplicates ( seq -- seq' )
+    #! Remove _consecutive_ duplicates (unlike prune which removes
+    #! all duplicates).
+    [ 2 <clumps> [ = not ] assoc-filter values ] [ first ] bi prefix ;
+
+: first>upper ( seq -- seq' ) 1 head >upper ;
+: trim-first ( seq -- seq' ) dup first [ = ] curry trim-left ;
+: remove-zeroes ( seq -- seq' ) CHAR: 0 swap remove ;
+: remove-non-alpha ( seq -- seq' ) [ alpha? ] filter ;
+: pad-4 ( first seq -- seq' ) "000" 3append 4 head ;
+
+: soundex ( string -- soundex )
+    remove-non-alpha [ f ] [
+        [ first>upper ]
+        [
+            soundex-tr
+            [ "" ] [ trim-first ] if-empty
+            [ "" ] [ remove-duplicates ] if-empty
+            remove-zeroes
+        ] bi
+        pad-4
+    ] if-empty ;
diff --git a/extra/soundex/summary.txt b/extra/soundex/summary.txt
new file mode 100644
index 0000000000..95a271d911
--- /dev/null
+++ b/extra/soundex/summary.txt
@@ -0,0 +1 @@
+Soundex is a phonetic algorithm for indexing names by sound
diff --git a/extra/spheres/deploy.factor b/extra/spheres/deploy.factor
new file mode 100644
index 0000000000..0eeef1e3b7
--- /dev/null
+++ b/extra/spheres/deploy.factor
@@ -0,0 +1,15 @@
+USING: tools.deploy.config ;
+H{
+    { deploy-reflection 1 }
+    { deploy-random? t }
+    { deploy-word-defs? f }
+    { deploy-word-props? f }
+    { deploy-name "Spheres" }
+    { deploy-compiler? t }
+    { deploy-math? t }
+    { deploy-io 1 }
+    { deploy-threads? t }
+    { "stop-after-last-window?" t }
+    { deploy-ui? t }
+    { deploy-c-types? f }
+}
diff --git a/extra/spheres/spheres.factor b/extra/spheres/spheres.factor
old mode 100644
new mode 100755
index 9d06987bcd..84621f8e18
--- a/extra/spheres/spheres.factor
+++ b/extra/spheres/spheres.factor
@@ -1,6 +1,6 @@
 USING: kernel opengl.demo-support opengl.gl opengl.shaders opengl.framebuffers
 opengl multiline ui.gadgets accessors sequences ui.render ui math 
-arrays arrays.lib combinators ;
+arrays generalizations combinators ;
 IN: spheres
 
 STRING: plane-vertex-shader
@@ -99,14 +99,13 @@ main()
 }
 ;
 
-TUPLE: spheres-gadget
+TUPLE: spheres-gadget < demo-gadget
     plane-program solid-sphere-program texture-sphere-program
     reflection-framebuffer reflection-depthbuffer
     reflection-texture ;
 
 : <spheres-gadget> ( -- gadget )
-    20.0 10.0 20.0 <demo-gadget>
-    { set-delegate } spheres-gadget construct ;
+    20.0 10.0 20.0 spheres-gadget new-demo-gadget ;
 
 M: spheres-gadget near-plane ( gadget -- z )
     drop 1.0 ;
@@ -195,10 +194,9 @@ M: spheres-gadget pref-dim* ( gadget -- dim )
 : sphere-scene ( gadget -- )
     GL_DEPTH_BUFFER_BIT GL_COLOR_BUFFER_BIT bitor glClear
     [
-        solid-sphere-program>> dup {
-            { "light_position" [ 0.0 0.0 100.0 glUniform3f ] }
-        } [
+        solid-sphere-program>> [
             {
+                [ "light_position" glGetUniformLocation 0.0 0.0 100.0 glUniform3f ]
                 [ {  7.0  0.0  0.0 } 1.0 { 1.0 0.0 0.0 1.0 } (draw-sphere) ]
                 [ { -7.0  0.0  0.0 } 1.0 { 0.0 1.0 0.0 1.0 } (draw-sphere) ]
                 [ {  0.0  0.0  7.0 } 1.0 { 0.0 0.0 1.0 1.0 } (draw-sphere) ]
@@ -208,7 +206,8 @@ M: spheres-gadget pref-dim* ( gadget -- dim )
             } cleave
         ] with-gl-program
     ] [
-        plane-program>> { } [
+        plane-program>> [
+            drop
             GL_QUADS [
                 -1000.0 -30.0  1000.0 glVertex3f
                 -1000.0 -30.0 -1000.0 glVertex3f
@@ -270,10 +269,10 @@ M: spheres-gadget draw-gadget* ( gadget -- )
         [ sphere-scene ]
         [ reflection-texture>> GL_TEXTURE_CUBE_MAP GL_TEXTURE0 bind-texture-unit ]
         [
-            texture-sphere-program>> dup {
-                { "surface_texture" [ 0 glUniform1i ] }
-            } [
-                { 0.0 0.0 0.0 } 4.0 { 1.0 0.0 0.0 1.0 } (draw-sphere)
+            texture-sphere-program>> [
+                [ "surface_texture" glGetUniformLocation 0 glUniform1i ]
+                [ { 0.0 0.0 0.0 } 4.0 { 1.0 0.0 0.0 1.0 } (draw-sphere) ]
+                bi
             ] with-gl-program
         ]
     } cleave ;
diff --git a/extra/spheres/tags.txt b/extra/spheres/tags.txt
index 2e6040bd16..b9a82374be 100644
--- a/extra/spheres/tags.txt
+++ b/extra/spheres/tags.txt
@@ -1,2 +1,3 @@
 opengl
 glsl
+demos
diff --git a/extra/springies/models/2snake/tags.txt b/extra/springies/models/2snake/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/2snake/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/2x2snake/2x2snake.factor b/extra/springies/models/2x2snake/2x2snake.factor
index 7c54e72578..6e794eb744 100644
--- a/extra/springies/models/2x2snake/2x2snake.factor
+++ b/extra/springies/models/2x2snake/2x2snake.factor
@@ -1,6 +1,6 @@
 
 USING: kernel namespaces arrays sequences threads math math.vectors
-       ui random bake springies springies.ui ;
+       ui random springies springies.ui ;
 
 IN: springies.models.2x2snake
 
diff --git a/extra/springies/models/2x2snake/tags.txt b/extra/springies/models/2x2snake/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/2x2snake/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/3snake/3snake.factor b/extra/springies/models/3snake/3snake.factor
index 92d39ac2c2..e65c9c64a6 100644
--- a/extra/springies/models/3snake/3snake.factor
+++ b/extra/springies/models/3snake/3snake.factor
@@ -1,5 +1,5 @@
 
-USING: kernel namespaces arrays sequences threads math ui random bake
+USING: kernel namespaces arrays sequences threads math ui random fry
        springies springies.ui ;
 
 IN: springies.models.3snake
@@ -158,8 +158,10 @@ times
 
 ;
 
-: go* ( quot -- )
-  [ [ [ springies-window* 1000 sleep % ] with-scope ] with-ui ] bake call ;
+! : go* ( quot -- )
+!   [ [ [ springies-window* 1000 sleep % ] with-scope ] with-ui ] bake call ;
+
+: go* ( quot -- ) '[ [ springies-window* 1000 sleep @ ] with-scope ] with-ui ;
 
 ! : go ( -- ) [ [ springies-window* 1000 sleep model ] with-scope ] with-ui ;
 
diff --git a/extra/springies/models/3snake/tags.txt b/extra/springies/models/3snake/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/3snake/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/ball/tags.txt b/extra/springies/models/ball/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/ball/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/belt-tire/belt-tire.factor b/extra/springies/models/belt-tire/belt-tire.factor
index 6604f85a3f..e00a93b310 100644
--- a/extra/springies/models/belt-tire/belt-tire.factor
+++ b/extra/springies/models/belt-tire/belt-tire.factor
@@ -1,5 +1,5 @@
 
-USING: kernel namespaces arrays sequences threads math ui random bake
+USING: kernel namespaces arrays sequences threads math ui random
        springies springies.ui ;
 
 IN: springies.models.belt-tire
diff --git a/extra/springies/models/belt-tire/tags.txt b/extra/springies/models/belt-tire/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/belt-tire/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/nifty/nifty.factor b/extra/springies/models/nifty/nifty.factor
index db644f2248..2b9a31b234 100644
--- a/extra/springies/models/nifty/nifty.factor
+++ b/extra/springies/models/nifty/nifty.factor
@@ -1,6 +1,6 @@
 
 USING: kernel namespaces arrays sequences threads math math.vectors
-       ui random bake springies springies.ui ;
+       ui random springies springies.ui ;
 
 IN: springies.models.nifty
 
diff --git a/extra/springies/models/nifty/tags.txt b/extra/springies/models/nifty/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/nifty/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/urchin/tags.txt b/extra/springies/models/urchin/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/springies/models/urchin/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/springies/models/urchin/urchin.factor b/extra/springies/models/urchin/urchin.factor
index 734a1c2f6d..8870c714e8 100644
--- a/extra/springies/models/urchin/urchin.factor
+++ b/extra/springies/models/urchin/urchin.factor
@@ -1,6 +1,6 @@
 
 USING: kernel namespaces arrays sequences threads math math.vectors
-       ui random bake
+       ui random
        springies springies.ui ;
 
 IN: springies.models.urchin
diff --git a/extra/springies/springies.factor b/extra/springies/springies.factor
old mode 100644
new mode 100755
index cd6e1a7cfb..818aa675e2
--- a/extra/springies/springies.factor
+++ b/extra/springies/springies.factor
@@ -1,6 +1,6 @@
 
 USING: kernel combinators sequences arrays math math.vectors
-       shuffle vars ;
+       generalizations vars accessors math.physics.vel ;
 
 IN: springies
 
@@ -28,27 +28,27 @@ VAR: gravity
 ! node
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-TUPLE: node mass elas pos vel force ;
+TUPLE: node < vel mass elas force ;
 
 C: <node> node
 
-: >>pos ( node pos -- node ) over set-node-pos ;
+: node-vel ( node -- vel ) vel>> ;
 
-: >>vel ( node vel -- node ) over set-node-vel ;
+: set-node-vel ( vel node -- ) swap >>vel drop ;
 
-: pos-x ( node -- x ) node-pos first ;
-: pos-y ( node -- y ) node-pos second ;
-: vel-x ( node -- y ) node-vel first ;
-: vel-y ( node -- y ) node-vel second ;
+: pos-x ( node -- x ) pos>> first ;
+: pos-y ( node -- y ) pos>> second ;
+: vel-x ( node -- y ) vel>> first ;
+: vel-y ( node -- y ) vel>> second ;
 
-: >>pos-x ( node x -- node ) over node-pos set-first ;
-: >>pos-y ( node y -- node ) over node-pos set-second ;
-: >>vel-x ( node x -- node ) over node-vel set-first ;
-: >>vel-y ( node y -- node ) over node-vel set-second ;
+: >>pos-x ( node x -- node ) over pos>> set-first ;
+: >>pos-y ( node y -- node ) over pos>> set-second ;
+: >>vel-x ( node x -- node ) over vel>> set-first ;
+: >>vel-y ( node y -- node ) over vel>> set-second ;
 
-: apply-force ( node vec -- ) over node-force v+ swap set-node-force ;
+: apply-force ( node vec -- ) over force>> v+ >>force drop ;
 
-: reset-force ( node -- ) 0 0 2array swap set-node-force ;
+: reset-force ( node -- node ) 0 0 2array >>force ;
 
 : node-id ( id -- node ) 1- nodes> nth ;
 
@@ -61,12 +61,12 @@ TUPLE: spring rest-length k damp node-a node-b ;
 C: <spring> spring
 
 : end-points ( spring -- b-pos a-pos )
-  [ spring-node-b node-pos ] [ spring-node-a node-pos ] bi ;
+  [ node-b>> pos>> ] [ node-a>> pos>> ] bi ;
 
 : spring-length ( spring -- length ) end-points v- norm ;
 
 : stretch-length ( spring -- length )
-  [ spring-length ] [ spring-rest-length ] bi - ;
+  [ spring-length ] [ rest-length>> ] bi - ;
 
 : dir ( spring -- vec ) end-points v- normalize ;
 
@@ -81,14 +81,14 @@ C: <spring> spring
 ! 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: hooke-force-mag ( spring -- mag ) [ spring-k ] [ stretch-length ] bi * ;
+: hooke-force-mag ( spring -- mag ) [ k>> ] [ stretch-length ] bi * ;
 
 : hooke-force ( spring -- force ) [ dir ] [ hooke-force-mag ] bi v*n ;
 
 : hooke-forces ( spring -- a b ) hooke-force dup vneg ;
 
 : act-on-nodes-hooke ( spring -- )
-  [ spring-node-a ] [ spring-node-b ] [ ] tri hooke-forces swapd
+  [ node-a>> ] [ node-b>> ] [ ] tri hooke-forces swapd
   apply-force
   apply-force ;
 
@@ -112,37 +112,37 @@ C: <spring> spring
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : relative-velocity-a ( spring -- vel )
-  [ spring-node-a node-vel ] [ spring-node-b node-vel ] bi v- ;
+  [ node-a>> vel>> ] [ node-b>> vel>> ] bi v- ;
 
 : unit-vec-b->a ( spring -- vec )
-  [ spring-node-a node-pos ] [ spring-node-b node-pos ] bi v- ;
+  [ node-a>> pos>> ] [ node-b>> pos>> ] bi v- ;
 
 : relative-velocity-along-spring-a ( spring -- vel )
   [ relative-velocity-a ] [ unit-vec-b->a ] bi vector-projection ;
 
 : damping-force-a ( spring -- vec )
-  [ relative-velocity-along-spring-a ] [ spring-damp ] bi v*n vneg ;
+  [ relative-velocity-along-spring-a ] [ damp>> ] bi v*n vneg ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : relative-velocity-b ( spring -- vel )
-  [ spring-node-b node-vel ] [ spring-node-a node-vel ] bi v- ;
+  [ node-b>> vel>> ] [ node-a>> vel>> ] bi v- ;
 
 : unit-vec-a->b ( spring -- vec )
-  [ spring-node-b node-pos ] [ spring-node-a node-pos ] bi v- ;
+  [ node-b>> pos>> ] [ node-a>> pos>> ] bi v- ;
 
 : relative-velocity-along-spring-b ( spring -- vel )
   [ relative-velocity-b ] [ unit-vec-a->b ] bi vector-projection ;
 
 : damping-force-b ( spring -- vec )
-  [ relative-velocity-along-spring-b ] [ spring-damp ] bi v*n vneg ;
+  [ relative-velocity-along-spring-b ] [ damp>> ] bi v*n vneg ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : act-on-nodes-damping ( spring -- )
   dup
-  [ spring-node-a ] [ damping-force-a ] bi apply-force
-  [ spring-node-b ] [ damping-force-b ] bi apply-force ;
+  [ node-a>> ] [ damping-force-a ] bi apply-force
+  [ node-b>> ] [ damping-force-b ] bi apply-force ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -158,22 +158,22 @@ C: <spring> spring
 
 : bounce-top ( node -- )
   world-height 1- >>pos-y
-  dup [ vel-y ] [ node-elas ] bi * neg >>vel-y
+  dup [ vel-y ] [ elas>> ] bi * neg >>vel-y
   drop ;
 
 : bounce-bottom ( node -- )
   0 >>pos-y
-  dup [ vel-y ] [ node-elas ] bi * neg >>vel-y
+  dup [ vel-y ] [ elas>> ] bi * neg >>vel-y
   drop ;
 
 : bounce-left ( node -- )
   0 >>pos-x
-  dup [ vel-x ] [ node-elas ] bi * neg >>vel-x
+  dup [ vel-x ] [ elas>> ] bi * neg >>vel-x
   drop ;
 
 : bounce-right ( node -- )
   world-width 1- >>pos-x
-  dup [ vel-x ] [ node-elas ] bi * neg >>vel-x
+  dup [ vel-x ] [ elas>> ] bi * neg >>vel-x
   drop ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -207,17 +207,17 @@ C: <spring> spring
 
 ! F = ma
 
-: calc-acceleration ( node -- vec ) [ node-force ] [ node-mass ] bi v/n ;
+: calc-acceleration ( node -- vec ) [ force>> ] [ mass>> ] bi v/n ;
 
 : new-vel ( node -- vel )
-  [ node-vel ] [ calc-acceleration time-slice> v*n ] bi v+ ;
+  [ vel>> ] [ calc-acceleration time-slice> v*n ] bi v+ ;
 
-: new-pos ( node -- pos ) [ node-pos ] [ node-vel time-slice> v*n ] bi v+ ;
+: new-pos ( node -- pos ) [ pos>> ] [ vel>> time-slice> v*n ] bi v+ ;
 
 : iterate-node ( node -- )
   dup new-pos >>pos
   dup new-vel >>vel
-  dup reset-force
+  reset-force
   handle-bounce ;
 
 : iterate-nodes ( -- ) nodes> [ iterate-node ] each ;
@@ -231,16 +231,21 @@ C: <spring> spring
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : mass ( id x y x-vel y-vel mass elas -- )
-  7 nrot drop
-  6 nrot 6 nrot 2array
-  5 nrot 5 nrot 2array
-  0 0 2array <node>
-  nodes> swap suffix >nodes ;
+  node new
+    swap >>elas
+    swap >>mass
+    -rot 2array >>vel
+    -rot 2array >>pos
+    0 0  2array >>force
+  nodes> swap suffix >nodes
+  drop ;
 
 : spng ( id id-a id-b k damp rest-length -- )
-  6 nrot drop
-  -rot
-  5 nrot node-id
-  5 nrot node-id
-  <spring>
-  springs> swap suffix >springs ;
+   spring new
+     swap >>rest-length
+     swap >>damp
+     swap >>k
+     swap node-id >>node-b
+     swap node-id >>node-a
+   springs> swap suffix >springs
+   drop ;
\ No newline at end of file
diff --git a/extra/springies/ui/ui.factor b/extra/springies/ui/ui.factor
index bebe813925..423a68cf0d 100644
--- a/extra/springies/ui/ui.factor
+++ b/extra/springies/ui/ui.factor
@@ -1,16 +1,16 @@
 
 USING: kernel namespaces threads sequences math math.vectors
        opengl.gl opengl colors ui ui.gadgets ui.gadgets.slate
-       bake rewrite-closures vars springies ;
+       fry rewrite-closures vars springies accessors math.geometry.rect ;
 
 IN: springies.ui
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: draw-node ( node -- ) node-pos { -5 -5 } v+ dup { 10 10 } v+ gl-rect ;
+: draw-node ( node -- ) pos>> { -5 -5 } v+ dup { 10 10 } v+ gl-rect ;
 
 : draw-spring ( spring -- )
-  [ spring-node-a node-pos ] [ spring-node-b node-pos ] bi gl-line ;
+  [ node-a>> pos>> ] [ node-b>> pos>> ] bi gl-line ;
 
 : draw-nodes ( -- ) nodes> [ draw-node ] each ;
 
@@ -23,7 +23,9 @@ IN: springies.ui
   GL_MODELVIEW glMatrixMode
   glLoadIdentity ;
 
-: display ( -- ) set-projection black gl-color draw-nodes draw-springs ;
+! : display ( -- ) set-projection black gl-color draw-nodes draw-springs ;
+
+: display ( -- ) set-projection black set-color draw-nodes draw-springs ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -50,17 +52,14 @@ DEFER: maybe-loop
 
 : springies-window* ( -- )
 
-  C[ display ] <slate> >slate
-    { 800 600 }                                      slate> set-slate-dim
-    C[ { 500 500 } >world-size loop on [ run ] in-thread ]
-      slate> set-slate-graft
-    C[ loop off ]                                    slate> set-slate-ungraft
-
-  slate> "Springies" open-window ;
+  C[ display ] <slate>
+    { 800 600 } >>pdim
+    C[ { 500 500 } >world-size loop on [ run ] in-thread ] >>graft
+    C[ loop off ] >>ungraft
+  [ >slate ] [ "Springies" open-window ] bi ;
 
 : springies-window ( -- ) [ [ springies-window* ] with-scope ] with-ui ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: go* ( quot -- )
-  [ [ [ springies-window* 1000 sleep % ] with-scope ] with-ui ] bake call ;
+: go* ( quot -- ) '[ [ springies-window* 1000 sleep @ ] with-scope ] with-ui ;
diff --git a/extra/state-machine/state-machine.factor b/extra/state-machine/state-machine.factor
index 3f1d91d84c..6a785e91b7 100755
--- a/extra/state-machine/state-machine.factor
+++ b/extra/state-machine/state-machine.factor
@@ -1,5 +1,6 @@
-USING: kernel parser strings math namespaces sequences words io
-arrays quotations debugger kernel.private sequences.private ;
+USING: kernel parser lexer strings math namespaces
+sequences words io arrays quotations debugger accessors
+sequences.private ;
 IN: state-machine
 
 : STATES:
@@ -11,8 +12,8 @@ IN: state-machine
 
 TUPLE: state place data ;
 
-TUPLE: missing-state ;
-: missing-state \ missing-state new throw ;
+ERROR: missing-state ;
+
 M: missing-state error.
     drop "Missing state" print ;
 
@@ -20,9 +21,9 @@ M: missing-state error.
     ! quot is ( state string -- output-string )
     [ missing-state ] <array> dup
     [
-        [ >r dup dup state-data swap state-place r> ] %
+        [ >r dup [ data>> ] [ place>> ] bi r> ] %
         [ swapd bounds-check dispatch ] curry ,
-        [ each pick set-state-place swap set-state-data ] %
+        [ each pick (>>place) swap (>>date) ] %
     ] [ ] make [ over make ] curry ;
 
 : define-machine ( word state-class -- )
diff --git a/extra/strings/lib/lib-tests.factor b/extra/strings/lib/lib-tests.factor
index 2779e190c9..6e0ce05eaa 100644
--- a/extra/strings/lib/lib-tests.factor
+++ b/extra/strings/lib/lib-tests.factor
@@ -5,4 +5,4 @@ IN: temporary
 [ "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ] [ upper-alpha-chars "" like ] unit-test
 [ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" ] [ alpha-chars "" like ] unit-test
 [ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" ] [ alphanumeric-chars "" like ] unit-test
-[ t ] [ 100 [ drop random-alphanumeric-char ] map alphanumeric-chars [ member? ] curry all? ] unit-test
+[ t ] [ 100 [ random-alphanumeric-char ] replicate alphanumeric-chars [ member? ] curry all? ] unit-test
diff --git a/extra/strings/lib/lib.factor b/extra/strings/lib/lib.factor
index e1d88e479d..6ecca05ec8 100644
--- a/extra/strings/lib/lib.factor
+++ b/extra/strings/lib/lib.factor
@@ -30,5 +30,4 @@ IN: strings.lib
     alphanumeric-chars random ;
 
 : random-alphanumeric-string ( length -- str )
-    [ drop random-alphanumeric-char ] map "" like ;
-
+    [ random-alphanumeric-char ] "" replicate-as ;
diff --git a/extra/sudoku/deploy.factor b/extra/sudoku/deploy.factor
index ba1ac1a32a..3d9101b19e 100755
--- a/extra/sudoku/deploy.factor
+++ b/extra/sudoku/deploy.factor
@@ -5,7 +5,7 @@ H{
     { deploy-name "Sudoku" }
     { deploy-threads? f }
     { deploy-compiler? t }
-    { deploy-math? f }
+    { deploy-math? t }
     { deploy-c-types? f }
     { deploy-io 2 }
     { deploy-reflection 1 }
diff --git a/extra/sudoku/sudoku.factor b/extra/sudoku/sudoku.factor
index 1cb82253b1..93b1804e36 100644
--- a/extra/sudoku/sudoku.factor
+++ b/extra/sudoku/sudoku.factor
@@ -6,12 +6,12 @@ IN: sudoku
 SYMBOL: solutions
 SYMBOL: board
 
-: pair+ swapd + >r + r> ;
+: pair+ ( a b c d -- a+b c+d ) swapd + >r + r> ;
 
-: row board get nth ;
-: board> row nth ;
-: >board row set-nth ;
-: f>board f -rot >board ;
+: row ( n -- row ) board get nth ;
+: board> ( m n -- x ) row nth ;
+: >board ( row m n -- ) row set-nth ;
+: f>board ( m n -- ) f -rot >board ;
 
 : row-contains? ( n y -- ? ) row member? ;
 : col-contains? ( n x -- ? ) board get swap <column> member? ;
diff --git a/extra/tar/tar.factor b/extra/tar/tar.factor
index 644cf9aa72..286ac0183a 100755
--- a/extra/tar/tar.factor
+++ b/extra/tar/tar.factor
@@ -1,6 +1,6 @@
 USING: combinators io io.files io.streams.string kernel math
 math.parser continuations namespaces pack prettyprint sequences
-strings system hexdump io.encodings.binary inspector accessors
+strings system hexdump io.encodings.binary summary accessors
 io.backend symbols byte-arrays ;
 IN: tar
 
@@ -135,7 +135,7 @@ M: unknown-typeflag summary ( obj -- str )
 : typeflag-L ( header -- )
     drop ;
     ! <string-writer> [ read-data-blocks ] keep
-    ! >string [ zero? ] right-trim filename set
+    ! >string [ zero? ] trim-right filename set
     ! filename get tar-prepend-path make-directories ;
 
 ! Multi volume continuation entry
diff --git a/extra/tools/deploy/deploy-tests.factor b/extra/tools/deploy/deploy-tests.factor
deleted file mode 100755
index 8ff22fb1ad..0000000000
--- a/extra/tools/deploy/deploy-tests.factor
+++ /dev/null
@@ -1,60 +0,0 @@
-IN: tools.deploy.tests
-USING: tools.test system io.files kernel tools.deploy.config
-tools.deploy.backend math sequences io.launcher arrays
-namespaces continuations layouts accessors ;
-
-: shake-and-bake ( vocab -- )
-    [ "test.image" temp-file delete-file ] ignore-errors
-    "resource:" [
-        >r vm
-        "test.image" temp-file
-        r> dup deploy-config make-deploy-image
-    ] with-directory ;
-
-: small-enough? ( n -- ? )
-    >r "test.image" temp-file file-info size>> r> <= ;
-
-[ ] [ "hello-world" shake-and-bake ] unit-test
-
-[ t ] [
-    cell 8 = 8 5 ? 100000 * small-enough?
-] unit-test
-
-[ ] [ "sudoku" shake-and-bake ] unit-test
-
-[ t ] [
-    cell 8 = 20 10 ? 100000 * small-enough?
-] unit-test
-
-[ ] [ "hello-ui" shake-and-bake ] unit-test
-
-[ "staging.math-compiler-ui-strip.image" ] [
-    "hello-ui" deploy-config
-    [ bootstrap-profile staging-image-name file-name ] bind
-] unit-test
-
-[ t ] [
-    cell 8 = 40 20 ? 100000 * small-enough?
-] unit-test
-
-[ ] [ "maze" shake-and-bake ] unit-test
-
-[ t ] [
-    cell 8 = 30 15 ? 100000 * small-enough?
-] unit-test
-
-[ ] [ "bunny" shake-and-bake ] unit-test
-
-[ t ] [
-    cell 8 = 50 30 ? 100000 * small-enough?
-] unit-test
-
-[ ] [
-    "tools.deploy.test.1" shake-and-bake
-    vm "-i=" "test.image" temp-file append 2array try-process
-] unit-test
-
-[ ] [
-    "tools.deploy.test.2" shake-and-bake
-    vm "-i=" "test.image" temp-file append 2array try-process
-] unit-test
diff --git a/extra/tools/deploy/shaker/strip-libc.factor b/extra/tools/deploy/shaker/strip-libc.factor
deleted file mode 100755
index ba1436fd17..0000000000
--- a/extra/tools/deploy/shaker/strip-libc.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-USING: libc.private ;
-IN: libc
-
-: malloc (malloc) check-ptr ;
-
-: realloc (realloc) check-ptr ;
-
-: calloc (calloc) check-ptr ;
-
-: free (free) ;
diff --git a/extra/tools/deploy/test/3/3.factor b/extra/tools/deploy/test/3/3.factor
deleted file mode 100755
index 2f07f4ede5..0000000000
--- a/extra/tools/deploy/test/3/3.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-IN: tools.deploy.test.3
-USING: io.encodings.ascii io.files kernel ;
-
-: deploy-test-3
-    "resource:extra/tools/deploy/test/3/3.factor"
-    ascii file-contents drop ;
-
-MAIN: deploy-test-3
diff --git a/extra/tools/profiler/profiler-tests.factor b/extra/tools/profiler/profiler-tests.factor
deleted file mode 100755
index 450a024a1e..0000000000
--- a/extra/tools/profiler/profiler-tests.factor
+++ /dev/null
@@ -1,44 +0,0 @@
-IN: tools.profiler.tests
-USING: tools.profiler tools.test kernel memory math threads
-alien tools.profiler.private sequences ;
-
-[ t ] [
-    \ length profile-counter
-    10 [ { } length drop ] times
-    \ length profile-counter =
-] unit-test
-
-[ ] [ [ 10 [ gc ] times ] profile ] unit-test
-
-[ ] [ [ 1000 sleep ] profile ] unit-test 
-
-[ ] [ profile. ] unit-test
-
-[ ] [ vocabs-profile. ] unit-test
-
-[ ] [ "kernel.private" vocab-profile. ] unit-test
-
-[ ] [ \ + usage-profile. ] unit-test
-
-: callback-test "void" { } "cdecl" [ ] alien-callback ;
-
-: indirect-test "void" { } "cdecl" alien-indirect ;
-
-: foobar ;
-
-[
-    [ ] [ callback-test indirect-test ] unit-test
-    foobar
-] profile
-
-[ 1 ] [ \ foobar profile-counter ] unit-test
-
-: fooblah { } [ ] each ;
-
-: foobaz fooblah fooblah ;
-
-[ foobaz ] profile
-
-[ 1 ] [ \ foobaz profile-counter ] unit-test
-
-[ 2 ] [ \ fooblah profile-counter ] unit-test
diff --git a/extra/tty-server/tty-server.factor b/extra/tty-server/tty-server.factor
index 2936c39070..4ba38ad06a 100644
--- a/extra/tty-server/tty-server.factor
+++ b/extra/tty-server/tty-server.factor
@@ -1,11 +1,15 @@
-USING: listener io.server io.encodings.utf8 ;
+USING: listener io.servers.connection io.encodings.utf8
+accessors kernel ;
 IN: tty-server
 
-: tty-server ( port -- )
-    local-server
-    "tty-server"
-    utf8 [ listener ] with-server ;
+: <tty-server> ( port -- )
+    <threaded-server>
+        "tty-server" >>name
+        utf8 >>encoding
+        swap local-server >>insecure
+        [ listener ] >>handler
+    start-server ;
 
-: default-tty-server 9999 tty-server ;
+: tty-server ( -- ) 9999 <tty-server> ;
 
-MAIN: default-tty-server
+MAIN: tty-server
diff --git a/extra/tuple-arrays/tuple-arrays-docs.factor b/extra/tuple-arrays/tuple-arrays-docs.factor
deleted file mode 100644
index d6949eaeac..0000000000
--- a/extra/tuple-arrays/tuple-arrays-docs.factor
+++ /dev/null
@@ -1,9 +0,0 @@
-USING: help.syntax help.markup splitting kernel ;
-IN: tuple-arrays
-
-HELP: tuple-array
-{ $description "The class of packed homogeneous tuple arrays. They are created with " { $link <tuple-array> } ". All elements are of the same tuple class. Mutations done to an element are not copied back to the packed array unless it is explicitly written back. Packed follows the sequence protocol and is implemented using the " { $link groups } " class." } ;
-
-HELP: <tuple-array>
-{ $values { "example" tuple } { "length" "a non-negative integer" } { "tuple-array" tuple-array } }
-{ $description "Creates an instance of the " { $link <tuple-array> } " class with the given length and containing the given tuple class. The tuple class is specified in the form of an example tuple. If the example tuple has a delegate, the tuple array will store a delegate for each element. Otherwise, the delegate will be assumed to be f." } ;
diff --git a/extra/tuple-arrays/tuple-arrays-tests.factor b/extra/tuple-arrays/tuple-arrays-tests.factor
deleted file mode 100755
index dd9510405f..0000000000
--- a/extra/tuple-arrays/tuple-arrays-tests.factor
+++ /dev/null
@@ -1,16 +0,0 @@
-USING: tuple-arrays sequences tools.test namespaces kernel math ;
-IN: tuple-arrays.tests
-
-SYMBOL: mat
-TUPLE: foo bar ;
-C: <foo> foo
-[ 2 ] [ 2 T{ foo } <tuple-array> dup mat set length ] unit-test
-[ T{ foo } ] [ mat get first ] unit-test
-[ T{ foo f 1 } ] [ T{ foo 2 1 } 0 mat get [ set-nth ] keep first ] unit-test
-[ t ] [ { T{ foo f 1 } T{ foo f 2 } } >tuple-array dup mat set tuple-array? ] unit-test
-[ T{ foo f 3 } t ] 
-[ mat get [ foo-bar 2 + <foo> ] map [ first ] keep tuple-array? ] unit-test
-
-[ 2 ] [ 2 T{ foo t } <tuple-array> dup mat set length ] unit-test
-[ T{ foo } ] [ mat get first ] unit-test
-[ T{ foo 2 1 } ] [ T{ foo 2 1 } 0 mat get [ set-nth ] keep first ] unit-test
diff --git a/extra/tuple-arrays/tuple-arrays.factor b/extra/tuple-arrays/tuple-arrays.factor
deleted file mode 100644
index 680610fbce..0000000000
--- a/extra/tuple-arrays/tuple-arrays.factor
+++ /dev/null
@@ -1,42 +0,0 @@
-! Copyright (C) 2007 Daniel Ehrenberg.
-! See http://factorcode.org/license.txt for BSD license.
-USING: splitting classes.tuple classes math kernel sequences
-arrays ;
-IN: tuple-arrays
-
-TUPLE: tuple-array example ;
-
-: prepare-example ( tuple -- seq n )
-    dup class over delegate [ 1array ] [ f 2array ] if
-    swap tuple>array length over length - ;
-
-: <tuple-array> ( length example -- tuple-array )
-    prepare-example [ rot * { } new-sequence ] keep
-    <sliced-groups> tuple-array construct-delegate
-    [ set-tuple-array-example ] keep ;
-
-: reconstruct ( seq example -- tuple )
-    prepend >tuple ;
-
-M: tuple-array nth
-    [ delegate nth ] keep
-    tuple-array-example reconstruct ;
-
-: deconstruct ( tuple example -- seq )
-    >r tuple>array r> length tail-slice ;
-
-M: tuple-array set-nth ( elt n seq -- )
-    tuck >r >r tuple-array-example deconstruct r> r>
-    delegate set-nth ;
-
-M: tuple-array new-sequence tuple-array-example >tuple <tuple-array> ;
-
-: >tuple-array ( seq -- tuple-array/seq )
-    dup empty? [
-        0 over first <tuple-array> clone-like
-    ] unless ;
-
-M: tuple-array like 
-    drop dup tuple-array? [ >tuple-array ] unless ;
-
-INSTANCE: tuple-array sequence
diff --git a/extra/tuple-syntax/summary.txt b/extra/tuple-syntax/summary.txt
deleted file mode 100644
index f243374925..0000000000
--- a/extra/tuple-syntax/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Tuple literals with named slots
diff --git a/extra/tuple-syntax/tags.txt b/extra/tuple-syntax/tags.txt
deleted file mode 100644
index abf53a421b..0000000000
--- a/extra/tuple-syntax/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-reflection
diff --git a/extra/tuple-syntax/tuple-syntax-docs.factor b/extra/tuple-syntax/tuple-syntax-docs.factor
deleted file mode 100644
index aacc48f9e5..0000000000
--- a/extra/tuple-syntax/tuple-syntax-docs.factor
+++ /dev/null
@@ -1,11 +0,0 @@
-USING: help.markup help.syntax ;
-IN: tuple-syntax
-
-HELP: TUPLE{
-{ $syntax "TUPLE{ class slot-name: value... }" }
-{ $values { "class" "a tuple class word" } { "slot-name" "the name of a slot, without the tuple class name" } { "value" "the value for a slot" } }
-{ $description "Marks the beginning of a literal tuple. Literal tuples are terminated by " { $link POSTPONE: } } ". The class word must be specified. Slots which aren't specified are set to f. If slot names are duplicated, the latest one is used." }
-{ $see-also POSTPONE: T{ } ;
-
-IN: tuple-syntax
-ABOUT: POSTPONE: TUPLE{
diff --git a/extra/tuple-syntax/tuple-syntax-tests.factor b/extra/tuple-syntax/tuple-syntax-tests.factor
deleted file mode 100755
index 2eb9d8bb12..0000000000
--- a/extra/tuple-syntax/tuple-syntax-tests.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-USING: tools.test tuple-syntax ;
-IN: tuple-syntax.tests
-
-TUPLE: foo bar baz ;
-
-[ T{ foo } ] [ TUPLE{ foo } ] unit-test
-[ T{ foo 1 { 2 3 } { 4 { 5 } } } ]
-[ TUPLE{ foo bar: { 2 3 } delegate: 1 baz: { 4 { 5 } } } ] unit-test
diff --git a/extra/tuple-syntax/tuple-syntax.factor b/extra/tuple-syntax/tuple-syntax.factor
deleted file mode 100755
index cf439f6407..0000000000
--- a/extra/tuple-syntax/tuple-syntax.factor
+++ /dev/null
@@ -1,18 +0,0 @@
-USING: kernel sequences slots parser words classes
-slots.private mirrors ;
-IN: tuple-syntax
-
-! TUPLE: foo bar baz ;
-! TUPLE{ foo bar: 1 baz: 2 }
-
-: parse-slot-writer ( tuple -- slot# )
-    scan dup "}" = [ 2drop f ] [
-        but-last swap object-slots slot-named slot-spec-offset
-    ] if ;
-
-: parse-slots ( accum tuple -- accum tuple )
-    dup parse-slot-writer
-    [ scan-object pick rot set-slot parse-slots ] when* ;
-
-: TUPLE{
-    scan-word new parse-slots parsed ; parsing
diff --git a/extra/turing/tags.txt b/extra/turing/tags.txt
index cb5fc203e1..8b13789179 100644
--- a/extra/turing/tags.txt
+++ b/extra/turing/tags.txt
@@ -1 +1 @@
-demos
+
diff --git a/extra/turing/turing.factor b/extra/turing/turing.factor
index 0dc90d8cf5..18d66a2e51 100644
--- a/extra/turing/turing.factor
+++ b/extra/turing/turing.factor
@@ -1,6 +1,6 @@
-IN: turing
 USING: arrays assocs io kernel math namespaces
-prettyprint sequences strings vectors words ;
+prettyprint sequences strings vectors words accessors ;
+IN: turing
 
 ! A turing machine simulator.
 
@@ -55,16 +55,16 @@ SYMBOL: tape
 : turing-step ( -- )
     #! Do one step of the turing machine.
     next-state
-    dup state-sym set-sym
-    dup state-dir position [ + ] change
-    state-next state set ;
+    dup sym>> set-sym
+    dup dir>> position [ + ] change
+    next>> state set ;
 
-: c
+: c ( -- )
     #! Print current turing machine state.
     state get .
     tape get .
     2 position get 2 * + CHAR: \s <string> write "^" print ;
 
-: n
+: n ( -- )
     #! Do one step and print new state.
     turing-step c ;
diff --git a/extra/ui/clipboards/clipboards.factor b/extra/ui/clipboards/clipboards.factor
deleted file mode 100644
index ab6cc35d8c..0000000000
--- a/extra/ui/clipboards/clipboards.factor
+++ /dev/null
@@ -1,31 +0,0 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel ui.gadgets ui.gestures namespaces ;
-IN: ui.clipboards
-
-! Two text transfer buffers
-TUPLE: clipboard contents ;
-: <clipboard> "" clipboard boa ;
-
-GENERIC: paste-clipboard ( gadget clipboard -- )
-
-M: object paste-clipboard
-    clipboard-contents dup [ swap user-input ] [ 2drop ] if ;
-
-GENERIC: copy-clipboard ( string gadget clipboard -- )
-
-M: object copy-clipboard nip set-clipboard-contents ;
-
-SYMBOL: clipboard
-SYMBOL: selection
-
-: gadget-copy ( gadget clipboard -- )
-    over gadget-selection? [
-        >r [ gadget-selection ] keep r> copy-clipboard
-    ] [
-        2drop
-    ] if ;
-
-: com-copy clipboard get gadget-copy ;
-
-: com-copy-selection selection get gadget-copy ;
diff --git a/extra/ui/gadgets/books/books.factor b/extra/ui/gadgets/books/books.factor
deleted file mode 100755
index 92520e0266..0000000000
--- a/extra/ui/gadgets/books/books.factor
+++ /dev/null
@@ -1,28 +0,0 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel sequences models ui.gadgets ;
-IN: ui.gadgets.books
-
-TUPLE: book ;
-
-: hide-all ( book -- ) gadget-children [ hide-gadget ] each ;
-
-: current-page ( book -- gadget )
-    [ control-value ] keep nth-gadget ;
-
-M: book model-changed
-    nip
-    dup hide-all
-    dup current-page show-gadget
-    relayout ;
-
-: <book> ( pages model -- book )
-    <gadget> book construct-control [ add-gadgets ] keep ;
-
-M: book pref-dim* gadget-children pref-dims max-dim ;
-
-M: book layout*
-    dup rect-dim swap gadget-children
-    [ set-layout-dim ] with each ;
-
-M: book focusable-child* current-page ;
diff --git a/extra/ui/gadgets/borders/borders.factor b/extra/ui/gadgets/borders/borders.factor
deleted file mode 100644
index 91d20e9c99..0000000000
--- a/extra/ui/gadgets/borders/borders.factor
+++ /dev/null
@@ -1,45 +0,0 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui.gadgets generic hashtables kernel math
-namespaces vectors sequences math.vectors ;
-IN: ui.gadgets.borders
-
-TUPLE: border size fill ;
-
-: <border> ( child gap -- border )
-    dup 2array { 0 0 } border boa
-    <gadget> over set-delegate
-    tuck add-gadget ;
-
-M: border pref-dim*
-    [ border-size 2 v*n ] keep
-    gadget-child pref-dim v+ ;
-
-: border-major-rect ( border -- rect )
-    dup border-size swap rect-dim over 2 v*n v- <rect> ;
-
-: border-minor-rect ( major border -- rect )
-    gadget-child pref-dim
-    [ >r rect-bounds r> v- [ 2 / >fixnum ] map v+ ] keep
-    <rect> ;
-
-: scale-rect ( rect vec -- loc dim )
-    [ v* ] curry >r rect-bounds r> bi@ ;
-
-: average-rects ( rect1 rect2 weight -- rect )
-    tuck >r >r scale-rect r> r> { 1 1 } swap v- scale-rect
-    swapd v+ >r v+ r> <rect> ;
-
-: border-child-rect ( border -- rect )
-    dup border-major-rect
-    dup pick border-minor-rect
-    rot border-fill
-    average-rects ;
-
-M: border layout*
-    dup border-child-rect swap gadget-child
-    over rect-loc over set-rect-loc
-    swap rect-dim swap set-layout-dim ;
-
-M: border focusable-child*
-    gadget-child ;
diff --git a/extra/ui/gadgets/cartesian/cartesian.factor b/extra/ui/gadgets/cartesian/cartesian.factor
new file mode 100644
index 0000000000..730b0f5b44
--- /dev/null
+++ b/extra/ui/gadgets/cartesian/cartesian.factor
@@ -0,0 +1,42 @@
+
+USING: kernel combinators sequences opengl.gl
+       ui.render ui.gadgets ui.gadgets.slate
+       accessors ;
+
+IN: ui.gadgets.cartesian
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+TUPLE: cartesian < slate x-min x-max y-min y-max z-min z-max perspective ;
+
+: init-cartesian ( cartesian -- cartesian )
+  init-slate
+  -10 >>x-min
+   10 >>x-max
+  -10 >>y-min
+   10 >>y-max
+   -1 >>z-min
+    1 >>z-max ;
+
+: <cartesian> ( -- cartesian ) cartesian new init-cartesian ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: cartesian establish-coordinate-system ( cartesian -- cartesian )
+   dup
+   {
+     [ x-min>> ] [ x-max>> ]
+     [ y-min>> ] [ y-max>> ]
+     [ z-min>> ] [ z-max>> ]
+   }
+   cleave
+   glOrtho ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: x-range ( cartesian range -- cartesian ) first2 [ >>x-min ] [ >>x-max ] bi* ;
+: y-range ( cartesian range -- cartesian ) first2 [ >>y-min ] [ >>y-max ] bi* ;
+: z-range ( cartesian range -- cartesian ) first2 [ >>z-min ] [ >>z-max ] bi* ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/extra/ui/gadgets/frame-buffer/frame-buffer.factor b/extra/ui/gadgets/frame-buffer/frame-buffer.factor
index 4990254778..2d58037982 100644
--- a/extra/ui/gadgets/frame-buffer/frame-buffer.factor
+++ b/extra/ui/gadgets/frame-buffer/frame-buffer.factor
@@ -1,13 +1,13 @@
 
-USING: kernel alien.c-types combinators sequences splitting
+USING: kernel alien.c-types combinators sequences splitting grouping
        opengl.gl ui.gadgets ui.render
-       math math.vectors accessors ;
+       math math.vectors accessors math.geometry.rect ;
 
 IN: ui.gadgets.frame-buffer
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-TUPLE: frame-buffer action dim last-dim graft ungraft pixels ;
+TUPLE: frame-buffer < gadget action pdim last-dim graft ungraft pixels ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
@@ -18,13 +18,15 @@ TUPLE: frame-buffer action dim last-dim graft ungraft pixels ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: <frame-buffer> ( -- frame-buffer )
-  frame-buffer construct-gadget
+: new-frame-buffer ( class -- gadget )
+  new-gadget
     [ ]         >>action
-    { 100 100 } >>dim
+    { 100 100 } >>pdim
     [ ]         >>graft
     [ ]         >>ungraft ;
 
+: <frame-buffer> ( -- frame-buffer ) frame-buffer new-frame-buffer ;
+
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : draw-pixels ( fb -- fb )
@@ -44,7 +46,7 @@ TUPLE: frame-buffer action dim last-dim graft ungraft pixels ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-M: frame-buffer pref-dim* dim>> ;
+M: frame-buffer pref-dim* pdim>> ;
 M: frame-buffer graft*    graft>>   call ;
 M: frame-buffer ungraft*  ungraft>> call ;
 
diff --git a/extra/ui/gadgets/frames/frames-docs.factor b/extra/ui/gadgets/frames/frames-docs.factor
deleted file mode 100755
index c593358841..0000000000
--- a/extra/ui/gadgets/frames/frames-docs.factor
+++ /dev/null
@@ -1,42 +0,0 @@
-USING: help.syntax help.markup ui.gadgets kernel arrays
-quotations classes.tuple ui.gadgets.grids ;
-IN: ui.gadgets.frames
-
-: $ui-frame-constant ( element -- )
-    drop
-    { $description "Symbolic constant for a common input to " { $link grid-add } " and " { $link frame, } "." } print-element ;
-
-HELP: @center $ui-frame-constant ;
-HELP: @left $ui-frame-constant ;
-HELP: @right $ui-frame-constant ;
-HELP: @top $ui-frame-constant ;
-HELP: @bottom $ui-frame-constant ;
-HELP: @top-left $ui-frame-constant ;
-HELP: @top-right $ui-frame-constant ;
-HELP: @bottom-left $ui-frame-constant ;
-HELP: @bottom-right $ui-frame-constant ;
-
-HELP: frame
-{ $class-description "A frame is a gadget which lays out its children in a 3x3 grid. If the frame is enlarged past its preferred size, the center gadget fills up available room."
-$nl
-"Frames are constructed by calling " { $link <frame> } " and since they delegate to " { $link grid } " instances, children can be managed with " { $link grid-add } " and " { $link grid-remove } "." } ;
-
-HELP: <frame>
-{ $values { "frame" frame } }
-{ $description "Creates a new " { $link frame } " for laying out gadgets in a 3x3 grid." } ;
-
-{ <frame> make-frame build-frame } related-words
-
-HELP: make-frame
-{ $values { "quot" quotation } { "frame" frame } }
-{ $description "Creates a new frame. The quotation can add children by calling the " { $link frame, } " word." } ;
-
-HELP: build-frame
-{ $values { "tuple" tuple } { "quot" quotation } }
-{ $description "Creates a new frame and sets " { $snippet "tuple" } "'s delegate to the new frame. The quotation can add children by calling the " { $link frame, } " word, and access the frame by calling " { $link g } " or " { $link g-> } "." } ;
-
-HELP: frame,
-{ $values { "gadget" gadget } { "i" "non-negative integer" } { "j" "non-negative integer" } }
-{ $description "Adds a child gadget at the specified location. This word can only be called inside the quotation passed to " { $link make-frame } " or " { $link build-frame } "." } ;
-
-{ grid frame } related-words
diff --git a/extra/ui/gadgets/gadgets-tests.factor b/extra/ui/gadgets/gadgets-tests.factor
deleted file mode 100755
index f88b207603..0000000000
--- a/extra/ui/gadgets/gadgets-tests.factor
+++ /dev/null
@@ -1,204 +0,0 @@
-IN: ui.gadgets.tests
-USING: ui.gadgets ui.gadgets.packs ui.gadgets.worlds tools.test
-namespaces models kernel dlists math sets
-math.parser ui sequences hashtables assocs io arrays
-prettyprint io.streams.string ;
-
-[ T{ rect f { 10 10 } { 20 20 } } ]
-[
-    T{ rect f { 10 10 } { 50 50 } }
-    T{ rect f { -10 -10 } { 40 40 } }
-    rect-intersect
-] unit-test
-
-[ T{ rect f { 200 200 } { 0 0 } } ]
-[
-    T{ rect f { 100 100 } { 50 50 } }
-    T{ rect f { 200 200 } { 40 40 } }
-    rect-intersect
-] unit-test
-
-[ f ] [
-    T{ rect f { 100 100 } { 50 50 } }
-    T{ rect f { 200 200 } { 40 40 } }
-    intersects?
-] unit-test
-
-[ t ] [
-    T{ rect f { 100 100 } { 50 50 } }
-    T{ rect f { 120 120 } { 40 40 } }
-    intersects?
-] unit-test
-
-[ f ] [
-    T{ rect f { 1000 100 } { 50 50 } }
-    T{ rect f { 120 120 } { 40 40 } }
-    intersects?
-] unit-test
-
-TUPLE: fooey ;
-
-C: <fooey> fooey
-
-[ ] [ <gadget> <fooey> set-gadget-delegate ] unit-test
-[ ] [ f <fooey> set-gadget-delegate ] unit-test
-
-[ { 300 300 } ]
-[
-    ! c contains b contains a
-    <gadget> "a" set
-    <gadget> "b" set
-    "a" get "b" get add-gadget
-    <gadget> "c" set
-    "b" get "c" get add-gadget
-
-    ! position a and b
-    { 100 200 } "a" get set-rect-loc
-    { 200 100 } "b" get set-rect-loc
-
-    ! give c a loc, it doesn't matter
-    { -1000 23 } "c" get set-rect-loc
-
-    ! what is the location of a inside c?
-    "a" get "c" get relative-loc
-] unit-test
-
-<gadget> "g1" set
-{ 10 10 } "g1" get set-rect-loc
-{ 30 30 } "g1" get set-rect-dim
-<gadget> "g2" set
-{ 20 20 } "g2" get set-rect-loc
-{ 50 500 } "g2" get set-rect-dim
-<gadget> "g3" set
-{ 100 200 } "g3" get set-rect-dim
-
-"g1" get "g2" get add-gadget
-"g2" get "g3" get add-gadget
-
-[ { 30 30 } ] [ "g1" get screen-loc ] unit-test
-[ { 30 30 } ] [ "g1" get screen-rect rect-loc ] unit-test
-[ { 30 30 } ] [ "g1" get screen-rect rect-dim ] unit-test
-[ { 20 20 } ] [ "g2" get screen-loc ] unit-test
-[ { 20 20 } ] [ "g2" get screen-rect rect-loc ] unit-test
-[ { 50 180 } ] [ "g2" get screen-rect rect-dim ] unit-test
-[ { 0 0 } ] [ "g3" get screen-loc ] unit-test
-[ { 0 0 } ] [ "g3" get screen-rect rect-loc ] unit-test
-[ { 100 200 } ] [ "g3" get screen-rect rect-dim ] unit-test
-
-<gadget> "g1" set
-{ 300 300 } "g1" get set-rect-dim
-<gadget> "g2" set
-"g2" get "g1" get add-gadget
-{ 20 20 } "g2" get set-rect-loc
-{ 20 20 } "g2" get set-rect-dim
-<gadget> "g3" set
-"g3" get "g1" get add-gadget
-{ 100 100 } "g3" get set-rect-loc
-{ 20 20 } "g3" get set-rect-dim
-
-[ t ] [ { 30 30 } "g2" get inside? ] unit-test
-
-[ t ] [ { 30 30 } "g1" get (pick-up) "g2" get eq? ] unit-test
-
-[ t ] [ { 30 30 } "g1" get pick-up "g2" get eq? ] unit-test
-
-[ t ] [ { 110 110 } "g1" get pick-up "g3" get eq? ] unit-test
-
-<gadget> "g4" set
-"g4" get "g2" get add-gadget
-{ 5 5 } "g4" get set-rect-loc
-{ 1 1 } "g4" get set-rect-dim
-
-[ t ] [ { 25 25 } "g1" get pick-up "g4" get eq? ] unit-test
-
-TUPLE: mock-gadget graft-called ungraft-called ;
-
-: <mock-gadget>
-    0 0 mock-gadget boa <gadget> over set-delegate ;
-
-M: mock-gadget graft*
-    dup mock-gadget-graft-called 1+
-    swap set-mock-gadget-graft-called ;
-
-M: mock-gadget ungraft*
-    dup mock-gadget-ungraft-called 1+
-    swap set-mock-gadget-ungraft-called ;
-
-! We can't print to output-stream here because that might be a pane
-! stream, and our graft-queue rebinding here would be captured
-! by code adding children to the pane...
-[
-    <dlist> \ graft-queue [
-        [ ] [ <mock-gadget> dup queue-graft unqueue-graft ] unit-test
-        [ t ] [ graft-queue dlist-empty? ] unit-test
-    ] with-variable
-
-    <dlist> \ graft-queue [
-        [ t ] [ graft-queue dlist-empty? ] unit-test
-
-        <mock-gadget> "g" set
-        [ ] [ "g" get queue-graft ] unit-test
-        [ f ] [ graft-queue dlist-empty? ] unit-test
-        [ { f t } ] [ "g" get gadget-graft-state ] unit-test
-        [ ] [ "g" get graft-later ] unit-test
-        [ { f t } ] [ "g" get gadget-graft-state ] unit-test
-        [ ] [ "g" get ungraft-later ] unit-test
-        [ { f f } ] [ "g" get gadget-graft-state ] unit-test
-        [ t ] [ graft-queue dlist-empty? ] unit-test
-        [ ] [ "g" get ungraft-later ] unit-test
-        [ ] [ "g" get graft-later ] unit-test
-        [ ] [ notify-queued ] unit-test
-        [ { t t } ] [ "g" get gadget-graft-state ] unit-test
-        [ t ] [ graft-queue dlist-empty? ] unit-test
-        [ ] [ "g" get graft-later ] unit-test
-        [ 1 ] [ "g" get mock-gadget-graft-called ] unit-test
-        [ ] [ "g" get ungraft-later ] unit-test
-        [ { t f } ] [ "g" get gadget-graft-state ] unit-test
-        [ ] [ notify-queued ] unit-test
-        [ 1 ] [ "g" get mock-gadget-ungraft-called ] unit-test
-        [ { f f } ] [ "g" get gadget-graft-state ] unit-test
-    ] with-variable
-
-    : add-some-children
-        3 [
-            <mock-gadget> over <model> over set-gadget-model
-            dup "g" get add-gadget
-            swap 1+ number>string set
-        ] each ;
-
-    : status-flags
-        { "g" "1" "2" "3" } [ get gadget-graft-state ] map prune ;
-
-    : notify-combo ( ? ? -- )
-        nl "===== Combo: " write 2dup 2array . nl
-        <dlist> \ graft-queue [
-            <mock-gadget> "g" set
-            [ ] [ add-some-children ] unit-test
-            [ V{ { f f } } ] [ status-flags ] unit-test
-            [ ] [ "g" get graft ] unit-test
-            [ V{ { f t } } ] [ status-flags ] unit-test
-            dup [ [ ] [ notify-queued ] unit-test ] when
-            [ ] [ "g" get clear-gadget ] unit-test
-            [ [ 1 ] [ graft-queue dlist-length ] unit-test ] unless
-            [ [ ] [ notify-queued ] unit-test ] when
-            [ ] [ add-some-children ] unit-test
-            [ { f t } ] [ "1" get gadget-graft-state ] unit-test
-            [ { f t } ] [ "2" get gadget-graft-state ] unit-test
-            [ { f t } ] [ "3" get gadget-graft-state ] unit-test
-            [ ] [ [ "x" print notify ] graft-queue swap dlist-slurp ] unit-test
-            [ ] [ notify-queued ] unit-test
-            [ V{ { t t } } ] [ status-flags ] unit-test
-        ] with-variable ;
-
-    { { f f } { f t } { t f } { t t } } [ notify-combo ] assoc-each
-] with-string-writer print
-
-\ <gadget> must-infer
-\ unparent must-infer
-\ add-gadget must-infer
-\ add-gadgets must-infer
-\ clear-gadget must-infer
-
-\ relayout must-infer
-\ relayout-1 must-infer
-\ pref-dim must-infer
diff --git a/extra/ui/gadgets/handler/handler.factor b/extra/ui/gadgets/handler/handler.factor
index da33660a8d..1c12142593 100644
--- a/extra/ui/gadgets/handler/handler.factor
+++ b/extra/ui/gadgets/handler/handler.factor
@@ -1,11 +1,11 @@
 
-USING: kernel assocs ui.gestures ;
+USING: kernel assocs ui.gestures ui.gadgets.wrappers accessors ;
 
 IN: ui.gadgets.handler
 
-TUPLE: handler table ;
+TUPLE: handler < wrapper table ;
 
-C: <handler> handler
+: <handler> ( child -- handler ) handler new-wrapper ;
 
-M: handler handle-gesture* ( gadget gesture delegate -- ? )
-handler-table at dup [ call f ] [ 2drop t ] if ;
\ No newline at end of file
+M: handler handle-gesture ( gesture gadget -- ? )
+   tuck table>> at dup [ call f ] [ 2drop t ] if ;
\ No newline at end of file
diff --git a/extra/ui/gadgets/incremental/incremental-docs.factor b/extra/ui/gadgets/incremental/incremental-docs.factor
deleted file mode 100755
index f7129ebbff..0000000000
--- a/extra/ui/gadgets/incremental/incremental-docs.factor
+++ /dev/null
@@ -1,27 +0,0 @@
-USING: ui.gadgets help.markup help.syntax ui.gadgets.packs ;
-IN: ui.gadgets.incremental
-
-HELP: incremental
-{ $class-description "An incremental layout gadget delegates to a " { $link pack } " and implements an optimization which the relayout operation after adding a child to be done in constant time."
-$nl
-"Incremental layout gadgets are created by calling " { $link <incremental> } "."
-$nl
-"Children are managed with the " { $link add-incremental } " and " { $link clear-incremental } " words."
-$nl
-"Not every " { $link pack } " can use incremental layout, since incremental layout does not support non-default values for " { $link pack-align } ", " { $link pack-fill } ", and " { $link pack-gap } "." } ;
-
-HELP: <incremental>
-{ $values { "pack" pack } { "incremental" "a new instance of " { $link incremental } } }
-{ $description "Creates a new incremental layout gadget delegating to " { $snippet "pack" } "." } ;
-
-{ <incremental> add-incremental clear-incremental } related-words
-
-HELP: add-incremental
-{ $values { "gadget" gadget } { "incremental" incremental } }
-{ $description "Adds the gadget to the incremental layout and performs relayout immediately in constant time." }
-{ $side-effects "incremental" } ;
-
-HELP: clear-incremental
-{ $values { "incremental" incremental } }
-{ $description "Removes all gadgets from the incremental layout and performs relayout immediately in constant time." }
-{ $side-effects "incremental" } ;
diff --git a/extra/ui/gadgets/labelled/labelled-tests.factor b/extra/ui/gadgets/labelled/labelled-tests.factor
deleted file mode 100644
index 377f3ab787..0000000000
--- a/extra/ui/gadgets/labelled/labelled-tests.factor
+++ /dev/null
@@ -1,27 +0,0 @@
-USING: ui.gadgets ui.gadgets.labels ui.gadgets.labelled
-ui.gadgets.packs ui.gadgets.frames ui.gadgets.grids namespaces
-kernel tools.test ui.gadgets.buttons sequences ;
-IN: ui.gadgets.labelled.tests
-
-TUPLE: testing ;
-
-
-[ ] [
-    T{ testing } [ "Hey" <label> ] "Testing"
-    build-closable-gadget "g" set
-] unit-test
-
-[ t ] [ "g" get testing? ] unit-test
-
-[ t ] [ "g" get delegate closable-gadget? ] unit-test
-
-[ t ] [ "g" get closable-gadget-content label? ] unit-test
-
-[ ] [
-    <pile> "p" set
-    "g" get "p" get add-gadget
-    "g" get @top grid-child @left grid-child
-    dup button-quot call
-] unit-test
-
-[ f ] [ "g" get "p" get gadget-children memq? ] unit-test
diff --git a/extra/ui/gadgets/labelled/labelled.factor b/extra/ui/gadgets/labelled/labelled.factor
deleted file mode 100755
index 111a78b215..0000000000
--- a/extra/ui/gadgets/labelled/labelled.factor
+++ /dev/null
@@ -1,64 +0,0 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui.gadgets.buttons ui.gadgets.borders
-ui.gadgets.labels ui.gadgets.panes ui.gadgets.scrollers
-ui.gadgets.tracks ui.gadgets.theme ui.gadgets.frames
-ui.gadgets.grids io kernel math models namespaces prettyprint
-sequences sequences words classes.tuple ui.gadgets ui.render
-colors ;
-IN: ui.gadgets.labelled
-
-TUPLE: labelled-gadget content ;
-
-: <labelled-gadget> ( gadget title -- newgadget )
-    labelled-gadget new
-    [
-        <label> dup reverse-video-theme f track,
-        g-> set-labelled-gadget-content 1 track,
-    ] { 0 1 } build-track ;
-
-M: labelled-gadget focusable-child* labelled-gadget-content ;
-
-: <labelled-scroller> ( gadget title -- gadget )
-    >r <scroller> r> <labelled-gadget> ;
-
-: <labelled-pane> ( model quot scrolls? title -- gadget )
-    >r >r <pane-control> r> over set-pane-scrolls? r>
-    <labelled-scroller> ;
-
-: <close-box> ( quot -- button/f )
-    gray close-box <polygon-gadget> swap <bevel-button> ;
-
-: title-theme ( gadget -- )
-    { 1 0 } over set-gadget-orientation
-    T{ gradient f {
-        { 0.65 0.65 1.0 1.0 }
-        { 0.65 0.45 1.0 1.0 }
-    } } swap set-gadget-interior ;
-
-: <title-label> <label> dup title-theme ;
-
-: <title-bar> ( title quot -- gadget )
-    [
-        [ <close-box> @left frame, ] when*
-        <title-label> @center frame,
-    ] make-frame ;
-
-TUPLE: closable-gadget content ;
-
-: find-closable-gadget ( parent -- child )
-    [ [ closable-gadget? ] is? ] find-parent ;
-
-: <closable-gadget> ( gadget title quot -- gadget )
-    closable-gadget new
-    [
-        <title-bar> @top frame,
-        g-> set-closable-gadget-content @center frame,
-    ] build-frame ;
-
-M: closable-gadget focusable-child* closable-gadget-content ;
-
-: build-closable-gadget ( tuple quot title -- tuple )
-    pick >r >r with-gadget
-    r> [ find-closable-gadget unparent ] <closable-gadget> r>
-    [ set-gadget-delegate ] keep ; inline
diff --git a/extra/ui/gadgets/labels/labels.factor b/extra/ui/gadgets/labels/labels.factor
deleted file mode 100755
index 167aa26084..0000000000
--- a/extra/ui/gadgets/labels/labels.factor
+++ /dev/null
@@ -1,66 +0,0 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays hashtables io kernel math namespaces
-opengl sequences strings splitting
-ui.gadgets ui.gadgets.tracks ui.gadgets.theme ui.render colors
-models ;
-IN: ui.gadgets.labels
-
-! A label gadget draws a string.
-TUPLE: label text font color ;
-
-: label-string ( label -- string )
-    label-text dup string? [ "\n" join ] unless ; inline
-
-: set-label-string ( string label -- )
-    CHAR: \n pick memq? [
-        >r string-lines r> set-label-text
-    ] [
-        set-label-text
-    ] if ; inline
-
-: label-theme ( gadget -- )
-    black over set-label-color
-    sans-serif-font swap set-label-font ;
-
-: <label> ( string -- label )
-    label construct-gadget
-    [ set-label-string ] keep
-    dup label-theme ;
-
-M: label pref-dim*
-    dup label-font open-font swap label-text text-dim ;
-
-M: label draw-gadget*
-    dup label-color gl-color
-    dup label-font swap label-text origin get draw-text ;
-
-M: label gadget-text* label-string % ;
-
-TUPLE: label-control ;
-
-M: label-control model-changed
-    swap model-value over set-label-string relayout ;
-
-: <label-control> ( model -- gadget )
-    "" <label> label-control construct-control ;
-
-: text-theme ( gadget -- )
-    black over set-label-color
-    monospace-font swap set-label-font ;
-
-: reverse-video-theme ( label -- )
-    white over set-label-color
-    black solid-interior ;
-
-GENERIC: >label ( obj -- gadget )
-M: string >label <label> ;
-M: array >label <label> ;
-M: object >label ;
-M: f >label drop <gadget> ;
-
-: label-on-left ( gadget label -- button )
-    [ >label f track, 1 track, ] { 1 0 } make-track ;
-
-: label-on-right ( label gadget -- button )
-    [ f track, >label 1 track, ] { 1 0 } make-track ;
diff --git a/extra/ui/gadgets/lib/lib.factor b/extra/ui/gadgets/lib/lib.factor
deleted file mode 100644
index 12385f0808..0000000000
--- a/extra/ui/gadgets/lib/lib.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-
-USING: ui.backend ui.gadgets.worlds ;
-
-IN: ui.gadgets.lib
-
-: find-gl-context ( gadget -- ) find-world world-handle select-gl-context ;
diff --git a/extra/ui/gadgets/packs/packs-docs.factor b/extra/ui/gadgets/packs/packs-docs.factor
deleted file mode 100755
index e80e5b5889..0000000000
--- a/extra/ui/gadgets/packs/packs-docs.factor
+++ /dev/null
@@ -1,61 +0,0 @@
-USING: ui.gadgets help.markup help.syntax generic kernel
-classes.tuple quotations ;
-IN: ui.gadgets.packs
-
-HELP: pack
-{ $class-description "A gadget which lays out its children along a single axis stored in the " { $link gadget-orientation } " slot. Can be constructed with one of the following words:"
-{ $list
-    { $link <pack> }
-    { $link <pile> }
-    { $link <shelf> }
-    { $link make-pile }
-    { $link make-filled-pile }
-    { $link make-shelf }
-}
-"Packs have the following slots:"
-{ $list
-    { { $link pack-align } " a rational number between 0 and 1, the alignment of gadgets along the axis perpendicular to the pack's orientation" }
-    { { $link pack-fill } " a rational number between 0 and 1, where 0 gives each gadget its preferred size and 1 fills the dimension perpendicular to the pack's orientation" }
-    { { $link pack-gap } " a pair of integers, the horizontal and vertical gap between children" }
-}
-"Gadgets can delegate to packs and implement their own " { $link pref-dim* } " and " { $link layout* } " methods, reusing pack layout logic by calling " { $link pack-pref-dim } " and " { $link pack-layout } "." } ;
-
-HELP: pack-layout
-{ $values { "pack" "a new " { $link pack } } { "sizes" "a sequence of pairs of integers" } }
-{ $description "Lays out the pack's children along the " { $link gadget-orientation } " of the pack, with each gadget receiving its size from the corresponding index of the " { $snippet "sizes" } " sequence." }
-{ $notes
-    "This word is useful if you are writing your own layout gadget which delegates to a " { $link pack } ". This allows you to reuse layout logic while computing gadget sizes using a custom procedure."
-} ;
-
-HELP: <pack>
-{ $values { "orientation" "an orientation specifier" } { "pack" "a new " { $link pack } } }
-{ $description "Creates a new pack which lays out children along the given axis. Children are laid out vertically if the orientation is " { $snippet "{ 0 1 }" } " and horizontally if the orientation is " { $snippet "{ 1 0 }" } "." } ;
-
-{ <pack> <pile> <shelf> } related-words
-
-HELP: <pile>
-{ $values { "pack" "a new " { $link pack } } }
-{ $description "Creates a new " { $link pack } " which lays out its children vertically." } ;
-
-HELP: <shelf>
-{ $values { "pack" "a new " { $link pack } } }
-{ $description "Creates a new " { $link pack } " which lays out its children horizontally." } ;
-
-HELP: pack-pref-dim
-{ $values { "gadget" gadget } { "sizes" "a sequence of pairs of integers" } { "dim" "a pair of integers" } }
-{ $description "Computes the preferred size of a pack, with each gadget receiving its size from the corresponding index of the " { $snippet "sizes" } " sequence." }
-{ $notes
-    "This word is useful if you are writing your own layout gadget which delegates to a " { $link pack } ". This allows you to reuse layout logic while computing gadget sizes using a custom procedure."
-} ;
-
-HELP: make-pile
-{ $values { "quot" quotation } { "pack" "a new " { $link pack } } }
-{ $description "Creates a new " { $link pack } " which lays out a sequence of gadgets vertically. The quotation can add children by calling the " { $link gadget, } " word." } ;
-
-HELP: make-filled-pile
-{ $values { "quot" quotation } { "pack" "a new " { $link pack } } }
-{ $description "Creates a new " { $link pack } " which lays out a sequence of gadgets vertically, such that all gadgets have the same width. The quotation can add children by calling the " { $link gadget, } " word." } ;
-
-HELP: make-shelf
-{ $values { "quot" quotation } { "pack" "a new " { $link pack } } }
-{ $description "Creates a new " { $link pack } " which lays out a sequence of gadgets horizontally. The quotation can add children by calling the " { $link gadget, } " word." } ;
diff --git a/extra/ui/gadgets/packs/packs.factor b/extra/ui/gadgets/packs/packs.factor
deleted file mode 100755
index c6f437583e..0000000000
--- a/extra/ui/gadgets/packs/packs.factor
+++ /dev/null
@@ -1,77 +0,0 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: sequences ui.gadgets kernel math math.functions
-math.vectors namespaces math.order ;
-IN: ui.gadgets.packs
-
-TUPLE: pack align fill gap ;
-
-: packed-dim-2 ( gadget sizes -- list )
-    [ over rect-dim over v- rot pack-fill v*n v+ ] with map ;
-
-: packed-dims ( gadget sizes -- seq )
-    2dup packed-dim-2 swap orient ;
-
-: gap-locs ( gap sizes -- seq )
-    { 0 0 } [ v+ over v+ ] accumulate 2nip ;
-
-: aligned-locs ( gadget sizes -- seq )
-    [ >r dup pack-align swap rect-dim r> v- n*v ] with map ;
-
-: packed-locs ( gadget sizes -- seq )
-    over pack-gap over gap-locs >r dupd aligned-locs r> orient ;
-
-: round-dims ( seq -- newseq )
-    { 0 0 } swap
-    [ swap v- dup [ ceiling >fixnum ] map [ swap v- ] keep ] map
-    nip ;
-
-: pack-layout ( pack sizes -- )
-    round-dims over gadget-children
-    >r dupd packed-dims r> 2dup [ set-layout-dim ] 2each
-    >r packed-locs r> [ set-rect-loc ] 2each ;
-
-: <pack> ( orientation -- pack )
-    0 0 { 0 0 } <gadget> {
-        set-gadget-orientation
-        set-pack-align
-        set-pack-fill
-        set-pack-gap
-        set-delegate
-    } pack construct ;
-
-: <pile> ( -- pack ) { 0 1 } <pack> ;
-
-: <filled-pile> ( -- pack ) <pile> 1 over set-pack-fill ;
-
-: <shelf> ( -- pack ) { 1 0 } <pack> ;
-
-: gap-dims ( gap sizes -- seeq )
-    [ dim-sum ] keep length 1 [-] rot n*v v+ ;
-
-: pack-pref-dim ( gadget sizes -- dim )
-    over pack-gap over gap-dims >r max-dim r>
-    rot gadget-orientation set-axis ;
-
-M: pack pref-dim*
-    dup gadget-children pref-dims pack-pref-dim ;
-
-M: pack layout*
-    dup gadget-children pref-dims pack-layout ;
-
-M: pack children-on ( rect gadget -- seq )
-    dup gadget-orientation swap gadget-children
-    [ fast-children-on ] keep <slice> ;
-
-: make-pile ( quot -- pack )
-    <pile> make-gadget ; inline
-
-: make-filled-pile ( quot -- pack )
-    <filled-pile> make-gadget ; inline
-
-: make-shelf ( quot -- pack )
-    <shelf> make-gadget ; inline
-
-: build-pack ( quot quot orientation -- pack )
-    <pack> build-gadget ; inline
-
diff --git a/extra/ui/gadgets/plot/plot.factor b/extra/ui/gadgets/plot/plot.factor
new file mode 100644
index 0000000000..52cd2faed7
--- /dev/null
+++ b/extra/ui/gadgets/plot/plot.factor
@@ -0,0 +1,137 @@
+
+USING: kernel quotations arrays sequences math math.ranges fry
+       opengl opengl.gl ui.render ui.gadgets.cartesian processing.shapes
+       accessors ;
+
+IN: ui.gadgets.plot
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+TUPLE: plot < cartesian functions points ;
+
+: init-plot ( plot -- plot )
+  init-cartesian
+    { } >>functions
+    100 >>points ;
+
+: <plot> ( -- plot ) plot new init-plot ;
+
+: step-size ( plot -- step-size )
+  [ [ x-max>> ] [ x-min>> ] bi - ] [ points>> ] bi / ;
+
+: plot-range ( plot -- range )
+  [ x-min>> ] [ x-max>> ] [ step-size ] tri <range> ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+TUPLE: function function color ;
+
+GENERIC: plot-function ( plot object -- plot )
+
+M: callable plot-function ( plot quotation -- plot )
+  >r dup plot-range r> '[ dup @ 2array ] map line-strip ;
+
+M: function plot-function ( plot function -- plot )
+   dup color>> dup [ >stroke-color ] [ drop ] if
+   >r dup plot-range r> function>> '[ dup @ 2array ] map line-strip ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: plot-functions ( plot -- plot ) dup functions>> [ plot-function ] each ;
+
+: draw-axis ( plot -- plot )
+  dup
+    [ [ x-min>> ] [ drop 0  ] bi 2array ]
+    [ [ x-max>> ] [ drop 0  ] bi 2array ] bi line*
+  dup
+    [ [ drop 0  ] [ y-min>> ] bi 2array ]
+    [ [ drop 0  ] [ y-max>> ] bi 2array ] bi line* ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: ui.gadgets.slate ;
+
+M: plot draw-slate ( plot -- plot )
+   2 glLineWidth
+   draw-axis
+   plot-functions
+   fill-mode
+   1 glLineWidth ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: add-function ( plot function -- plot )
+  over functions>> swap suffix >>functions ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: x-span ( plot -- span ) [ x-max>> ] [ x-min>> ] bi - ;
+: y-span ( plot -- span ) [ y-max>> ] [ y-min>> ] bi - ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: ui.gestures ui.gadgets ;
+
+: left ( plot -- plot )
+  dup [ x-min>> ] [ x-span 1/10 * ] bi - >>x-min
+  dup [ x-max>> ] [ x-span 1/10 * ] bi - >>x-max
+  dup relayout-1 ;
+
+: right ( plot -- plot )
+  dup [ x-min>> ] [ x-span 1/10 * ] bi + >>x-min
+  dup [ x-max>> ] [ x-span 1/10 * ] bi + >>x-max
+  dup relayout-1 ;
+
+: down ( plot -- plot )
+  dup [ y-min>> ] [ y-span 1/10 * ] bi - >>y-min
+  dup [ y-max>> ] [ y-span 1/10 * ] bi - >>y-max
+  dup relayout-1 ;
+
+: up ( plot -- plot )
+  dup [ y-min>> ] [ y-span 1/10 * ] bi + >>y-min
+  dup [ y-max>> ] [ y-span 1/10 * ] bi + >>y-max
+  dup relayout-1 ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: zoom-in-horizontal ( plot -- plot )
+  dup [ x-min>> ] [ x-span 1/10 * ] bi + >>x-min
+  dup [ x-max>> ] [ x-span 1/10 * ] bi - >>x-max ;
+
+: zoom-in-vertical ( plot -- plot )
+  dup [ y-min>> ] [ y-span 1/10 * ] bi + >>y-min
+  dup [ y-max>> ] [ y-span 1/10 * ] bi - >>y-max ;
+
+: zoom-in ( plot -- plot )
+  zoom-in-horizontal
+  zoom-in-vertical
+  dup relayout-1 ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: zoom-out-horizontal ( plot -- plot )
+  dup [ x-min>> ] [ x-span 1/10 * ] bi - >>x-min
+  dup [ x-max>> ] [ x-span 1/10 * ] bi + >>x-max ;
+
+: zoom-out-vertical ( plot -- plot )
+  dup [ y-min>> ] [ y-span 1/10 * ] bi - >>y-min
+  dup [ y-max>> ] [ y-span 1/10 * ] bi + >>y-max ;
+
+: zoom-out ( plot -- plot )
+  zoom-out-horizontal
+  zoom-out-vertical
+  dup relayout-1 ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+plot
+  H{
+    { T{ mouse-enter } [ request-focus ] }
+    { T{ key-down f f "LEFT"  } [ left drop  ] }
+    { T{ key-down f f "RIGHT" } [ right drop ] }
+    { T{ key-down f f "DOWN"  } [ down drop  ] }
+    { T{ key-down f f "UP"    } [ up drop    ] }
+    { T{ key-down f f "a"     } [ zoom-in  drop ] }
+    { T{ key-down f f "z"     } [ zoom-out drop ] }
+  }
+set-gestures
\ No newline at end of file
diff --git a/extra/ui/gadgets/scrollers/scrollers.factor b/extra/ui/gadgets/scrollers/scrollers.factor
deleted file mode 100755
index ce2bf40db8..0000000000
--- a/extra/ui/gadgets/scrollers/scrollers.factor
+++ /dev/null
@@ -1,144 +0,0 @@
-! Copyright (C) 2005, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors arrays ui.gadgets ui.gadgets.viewports
-ui.gadgets.frames ui.gadgets.grids ui.gadgets.theme
-ui.gadgets.sliders ui.gestures kernel math namespaces sequences
-models combinators math.vectors classes.tuple ;
-IN: ui.gadgets.scrollers
-
-TUPLE: scroller viewport x y follows ;
-
-: find-scroller ( gadget -- scroller/f )
-    [ [ scroller? ] is? ] find-parent ;
-
-: scroll-up-page scroller-y -1 swap slide-by-page ;
-
-: scroll-down-page scroller-y 1 swap slide-by-page ;
-
-: scroll-up-line scroller-y -1 swap slide-by-line ;
-
-: scroll-down-line scroller-y 1 swap slide-by-line ;
-
-: do-mouse-scroll ( scroller -- )
-    scroll-direction get-global first2
-    pick scroller-y slide-by-line
-    swap scroller-x slide-by-line ;
-
-scroller H{
-    { T{ mouse-scroll } [ do-mouse-scroll ] }
-} set-gestures
-
-: viewport, ( child -- )
-    g gadget-model <viewport>
-    g-> set-scroller-viewport @center frame, ;
-
-: <scroller-model> ( -- model )
-    0 0 0 0 <range> 0 0 0 0 <range> 2array <compose> ;
-
-: x-model g gadget-model model-dependencies first ;
-
-: y-model g gadget-model model-dependencies second ;
-
-: <scroller> ( gadget -- scroller )
-    <scroller-model> <frame> scroller construct-control [
-        [
-            x-model <x-slider> g-> set-scroller-x @bottom frame,
-            y-model <y-slider> g-> set-scroller-y @right frame,
-            viewport,
-        ] with-gadget
-    ] keep t over set-gadget-root? dup faint-boundary ;
-
-: scroll ( value scroller -- )
-    [
-        dup scroller-viewport rect-dim { 0 0 }
-        rot scroller-viewport viewport-dim 4array flip
-    ] keep
-    2dup control-value = [ 2drop ] [ set-control-value ] if ;
-
-: rect-min ( rect1 rect2 -- rect )
-    >r [ rect-loc ] keep r> [ rect-dim ] bi@ vmin <rect> ;
-
-: (scroll>rect) ( rect scroller -- )
-    [
-        scroller-value vneg offset-rect
-        viewport-gap offset-rect
-    ] keep
-    [ scroller-viewport rect-min ] keep
-    [
-        scroller-viewport 2rect-extent
-        >r >r v- { 0 0 } vmin r> r> v- { 0 0 } vmax v+
-    ] keep dup scroller-value rot v+ swap scroll ;
-
-: relative-scroll-rect ( rect gadget scroller -- newrect )
-    scroller-viewport gadget-child relative-loc offset-rect ;
-
-: find-scroller* ( gadget -- scroller )
-    dup find-scroller dup [
-        2dup scroller-viewport gadget-child
-        swap child? [ nip ] [ 2drop f ] if
-    ] [
-        2drop f
-    ] if ;
-
-: scroll>rect ( rect gadget -- )
-    dup find-scroller* dup [
-        [ relative-scroll-rect ] keep
-        [ set-scroller-follows ] keep
-        relayout
-    ] [
-        3drop
-    ] if ;
-
-: (scroll>gadget) ( gadget scroller -- )
-    >r { 0 0 } over pref-dim <rect> swap r>
-    [ relative-scroll-rect ] keep
-    (scroll>rect) ;
-
-: scroll>gadget ( gadget -- )
-    dup find-scroller* dup [
-        [ set-scroller-follows ] keep
-        relayout
-    ] [
-        2drop
-    ] if ;
-
-: (scroll>bottom) ( scroller -- )
-    dup scroller-viewport viewport-dim { 0 1 } v* swap scroll ;
-
-: scroll>bottom ( gadget -- )
-    find-scroller [
-        t over set-scroller-follows relayout-1
-    ] when* ;
-
-: scroll>top ( gadget -- )
-    <zero-rect> swap scroll>rect ;
-
-: update-scroller ( scroller follows -- )
-    {
-        { [ dup t eq? ] [ drop (scroll>bottom) ] }
-        { [ dup rect? ] [ swap (scroll>rect) ] }
-        { [ dup ] [ swap (scroll>gadget) ] }
-        [ drop dup scroller-value swap scroll ]
-    } cond ;
-
-M: scroller layout*
-    dup delegate layout*
-    dup scroller-follows
-    [ update-scroller ] 2keep
-    swap set-scroller-follows ;
-
-M: scroller focusable-child*
-    scroller-viewport ;
-
-M: scroller model-changed
-    nip f swap set-scroller-follows ;
-
-TUPLE: limited-scroller dim ;
-
-: <limited-scroller> ( gadget -- scroller )
-    <scroller>
-    limited-scroller new
-    [ set-gadget-delegate ] keep ;
-
-M: limited-scroller pref-dim*
-    dim>> ;
diff --git a/extra/ui/gadgets/slate/slate.factor b/extra/ui/gadgets/slate/slate.factor
index ab2abeec5b..0505586b53 100644
--- a/extra/ui/gadgets/slate/slate.factor
+++ b/extra/ui/gadgets/slate/slate.factor
@@ -1,122 +1,116 @@
 
-USING: kernel namespaces opengl ui.render ui.gadgets ;
+USING: kernel namespaces opengl ui.render ui.gadgets accessors ;
 
 IN: ui.gadgets.slate
 
-TUPLE: slate action dim graft ungraft
-       button-down
-       button-up
-       key-down
-       key-up ;
+TUPLE: slate < gadget action pdim graft ungraft ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: init-slate ( slate -- slate )
+  init-gadget
+  [ ]         >>action
+  { 200 200 } >>pdim
+  [ ]         >>graft
+  [ ]         >>ungraft ;
 
 : <slate> ( action -- slate )
-  slate construct-gadget
-  tuck set-slate-action
-  { 100 100 } over set-slate-dim
-  [ ] over set-slate-graft
-  [ ] over set-slate-ungraft ;
+  slate new
+    init-slate
+    swap >>action ;
 
-M: slate pref-dim* ( slate -- dim ) slate-dim ;
+M: slate pref-dim* ( slate -- dim ) pdim>> ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: combinators arrays sequences math math.geometry
+       opengl.gl ui.gadgets.worlds ;
+
+: screen-y* ( gadget -- loc )
+  {
+    [ find-world height ]
+    [ screen-loc second ]
+    [ height ]
+  }
+  cleave
+  + - ;
+
+: screen-loc* ( gadget -- loc )
+  {
+    [ screen-loc first ]
+    [ screen-y* ]
+  }
+  cleave
+  2array ;
+
+: setup-viewport ( gadget -- gadget )
+  dup
+  {
+    [ screen-loc* ]
+    [ dim>>       ]
+  }
+  cleave
+  gl-viewport ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: default-coordinate-system ( gadget -- gadget )
+  dup
+  {
+    [ drop 0 ]
+    [ width 1 - ]
+    [ height 1 - ]
+    [ drop 0 ]
+  }
+  cleave
+  -1 1
+  glOrtho ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: slate graft*   ( slate -- ) graft>>   call ;
+M: slate ungraft* ( slate -- ) ungraft>> call ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+GENERIC: establish-coordinate-system ( gadget -- gadget )
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: slate establish-coordinate-system ( slate -- slate )
+   default-coordinate-system ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+GENERIC: draw-slate ( slate -- slate )
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: slate draw-slate ( slate -- slate ) dup action>> call ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 M: slate draw-gadget* ( slate -- )
-   origin get swap slate-action with-translation ;
 
-M: slate graft* ( slate -- ) slate-graft call ;
+   GL_PROJECTION glMatrixMode glPushMatrix glLoadIdentity
 
-M: slate ungraft* ( slate -- ) slate-ungraft call ;
+   establish-coordinate-system
+
+   GL_MODELVIEW glMatrixMode glPushMatrix glLoadIdentity 
+
+   setup-viewport
+
+   draw-slate
+
+   GL_PROJECTION glMatrixMode glPopMatrix glLoadIdentity
+   GL_MODELVIEW  glMatrixMode glPopMatrix glLoadIdentity
+
+   dup
+   find-world
+   ! The world coordinate system is a little wacky:
+   dup { [ drop 0 ] [ width ] [ height ] [ drop 0 ] } cleave -1 1 glOrtho
+   setup-viewport
+   drop
+   drop ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-SYMBOL: key-pressed-value
-
-: key-pressed? ( -- ? ) key-pressed-value get ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-SYMBOL: mouse-pressed-value
-
-: mouse-pressed? ( -- ? ) mouse-pressed-value get ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-SYMBOL: key-value
-
-: key ( -- key ) key-value get ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-SYMBOL: button-value
-
-: button ( -- val ) button-value get ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-USING: combinators ui.gestures accessors ;
-
-! M: slate handle-gesture* ( gadget gesture delegate -- ? )
-!    drop nip
-!    {
-!      {
-!        [ dup key-down? ]
-!        [
-       
-!          key-down-sym key-value set
-!          key-pressed-value on
-!          t
-!        ]
-!      }
-!      { [ dup key-up?   ] [ drop key-pressed-value off t ] }
-!      {
-!        [ dup button-down? ]
-!        [
-!          button-down-# mouse-button-value set
-!          mouse-pressed-value on
-!          t
-!        ]
-!      }
-!      { [ dup button-up? ] [ drop mouse-pressed-value off t ] }
-!      { [ t             ] [ drop                       t ] }
-!    }
-!    cond ;
-
-M: slate handle-gesture* ( gadget gesture delegate -- ? )
-   rot drop swap         ! delegate gesture
-   {
-     {
-       [ dup key-down? ]
-       [
-         key-down-sym key-value set
-         key-pressed-value on
-         key-down>> dup [ call ] [ drop ] if
-         t
-       ]
-     }
-     {
-       [ dup key-up?   ]
-       [
-         key-pressed-value off
-         drop
-         key-up>> dup [ call ] [ drop ] if
-         t
-       ] }
-     {
-       [ dup button-down? ]
-       [
-         button-down-# button-value set
-         mouse-pressed-value on
-         button-down>> dup [ call ] [ drop ] if
-         t
-       ]
-     }
-     {
-       [ dup button-up? ]
-       [
-         mouse-pressed-value off
-         drop
-         button-up>> dup [ call ] [ drop ] if
-         t
-       ]
-     }
-     { [ t ] [ 2drop t ] }
-   }
-   cond ;
\ No newline at end of file
diff --git a/extra/ui/gadgets/sliders/sliders.factor b/extra/ui/gadgets/sliders/sliders.factor
deleted file mode 100755
index 4d2c423445..0000000000
--- a/extra/ui/gadgets/sliders/sliders.factor
+++ /dev/null
@@ -1,178 +0,0 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui.gestures ui.gadgets ui.gadgets.buttons
-ui.gadgets.frames ui.gadgets.grids math.order
-ui.gadgets.theme ui.render kernel math namespaces sequences
-vectors models math.vectors math.functions quotations colors ;
-IN: ui.gadgets.sliders
-
-TUPLE: elevator direction ;
-
-: find-elevator ( gadget -- elevator/f )
-    [ elevator? ] find-parent ;
-
-TUPLE: slider elevator thumb saved line ;
-
-: find-slider ( gadget -- slider/f )
-    [ slider? ] find-parent ;
-
-: elevator-length ( slider -- n )
-    dup slider-elevator rect-dim
-    swap gadget-orientation v. ;
-
-: min-thumb-dim 15 ;
-
-: slider-value gadget-model range-value >fixnum ;
-
-: slider-page gadget-model range-page-value ;
-
-: slider-max gadget-model range-max-value ;
-
-: slider-max* gadget-model range-max-value* ;
-
-: thumb-dim ( slider -- h )
-    dup slider-page over slider-max 1 max / 1 min
-    over elevator-length * min-thumb-dim max
-    over slider-elevator rect-dim
-    rot gadget-orientation v. min ;
-
-: slider-scale ( slider -- n )
-    #! A scaling factor such that if x is a slider co-ordinate,
-    #! x*n is the screen position of the thumb, and conversely
-    #! for x/n. The '1 max' calls avoid division by zero.
-    dup elevator-length over thumb-dim - 1 max
-    swap slider-max* 1 max / ;
-
-: slider>screen slider-scale * ;
-
-: screen>slider slider-scale / ;
-
-M: slider model-changed nip slider-elevator relayout-1 ;
-
-TUPLE: thumb ;
-
-: begin-drag ( thumb -- )
-    find-slider dup slider-value swap set-slider-saved ;
-
-: do-drag ( thumb -- )
-    find-slider drag-loc over gadget-orientation v.
-    over screen>slider swap [ slider-saved + ] keep
-    gadget-model set-range-value ;
-
-thumb H{
-    { T{ button-down } [ begin-drag ] }
-    { T{ button-up } [ drop ] }
-    { T{ drag } [ do-drag ] }
-} set-gestures
-
-: thumb-theme ( thumb -- )
-    plain-gradient over set-gadget-interior faint-boundary ;
-
-: <thumb> ( vector -- thumb )
-    thumb construct-gadget
-    t over set-gadget-root?
-    dup thumb-theme
-    [ set-gadget-orientation ] keep ;
-
-: slide-by ( amount slider -- )
-    gadget-model move-by ;
-
-: slide-by-page ( amount slider -- )
-    gadget-model move-by-page ;
-
-: compute-direction ( elevator -- -1/1 )
-    dup find-slider swap hand-click-rel
-    over gadget-orientation v.
-    over screen>slider
-    swap slider-value - sgn ;
-
-: elevator-hold ( elevator -- )
-    dup elevator-direction swap find-slider slide-by-page ;
-
-: elevator-click ( elevator -- )
-    dup compute-direction over set-elevator-direction
-    elevator-hold ;
-
-elevator H{
-    { T{ drag } [ elevator-hold ] }
-    { T{ button-down } [ elevator-click ] }
-} set-gestures
-
-: elevator-theme ( elevator -- )
-    lowered-gradient swap set-gadget-interior ;
-
-: <elevator> ( vector -- elevator )
-    elevator construct-gadget
-    [ set-gadget-orientation ] keep
-    dup elevator-theme ;
-
-: (layout-thumb) ( slider n -- n thumb )
-    over gadget-orientation n*v swap slider-thumb ;
-
-: thumb-loc ( slider -- loc )
-    dup slider-value swap slider>screen ;
-
-: layout-thumb-loc ( slider -- )
-    dup thumb-loc (layout-thumb)
-    >r [ floor ] map r> set-rect-loc ;
-
-: layout-thumb-dim ( slider -- )
-    dup dup thumb-dim (layout-thumb) >r
-    >r dup rect-dim r>
-    rot gadget-orientation set-axis [ ceiling ] map
-    r> set-layout-dim ;
-
-: layout-thumb ( slider -- )
-    dup layout-thumb-loc layout-thumb-dim ;
-
-M: elevator layout*
-    find-slider layout-thumb ;
-
-: slide-by-line ( amount slider -- )
-    [ slider-line * ] keep slide-by ;
-
-: <slide-button> ( vector polygon amount -- button )
-    >r gray swap <polygon-gadget> r>
-    [ swap find-slider slide-by-line ] curry <repeat-button>
-    [ set-gadget-orientation ] keep ;
-
-: elevator, ( orientation -- )
-    dup <elevator> g-> set-slider-elevator
-    swap <thumb> g-> set-slider-thumb over add-gadget
-    @center frame, ;
-
-: <left-button> { 0 1 } arrow-left -1 <slide-button> ;
-: <right-button> { 0 1 } arrow-right 1 <slide-button> ;
-
-: build-x-slider ( slider -- )
-    [
-        <left-button> @left frame,
-        { 0 1 } elevator,
-        <right-button> @right frame,
-    ] with-gadget ;
-
-: <up-button> { 1 0 } arrow-up -1 <slide-button> ;
-: <down-button> { 1 0 } arrow-down 1 <slide-button> ;
-
-: build-y-slider ( slider -- )
-    [
-        <up-button> @top frame,
-        { 1 0 } elevator,
-        <down-button> @bottom frame,
-    ] with-gadget ;
-
-: <slider> ( range orientation -- slider )
-    swap <frame> slider construct-control
-    [ set-gadget-orientation ] keep
-    32 over set-slider-line ;
-
-: <x-slider> ( range -- slider )
-    { 1 0 } <slider> dup build-x-slider ;
-
-: <y-slider> ( range -- slider )
-    { 0 1 } <slider> dup build-y-slider ;
-
-M: slider pref-dim*
-    dup delegate pref-dim*
-    swap gadget-orientation [ 40 v*n ] keep
-    set-axis ;
diff --git a/extra/ui/gadgets/status-bar/status-bar-docs.factor b/extra/ui/gadgets/status-bar/status-bar-docs.factor
deleted file mode 100755
index 3391e89c0f..0000000000
--- a/extra/ui/gadgets/status-bar/status-bar-docs.factor
+++ /dev/null
@@ -1,10 +0,0 @@
-USING: ui.gadgets.presentations help.markup help.syntax models
-ui.gadgets ui.gadgets.worlds ;
-IN: ui.gadgets.status-bar
-
-HELP: <status-bar>
-{ $values { "model" model } { "gadget" "a new " { $link gadget } } }
-{ $description "Creates a new " { $link gadget } " displaying the model value, which must be a string or " { $link f } "." }
-{ $notes "If the " { $snippet "model" } " is " { $link world-status } ", this gadget will display " { $link presentation } " mouse over help." } ;
-
-{ <status-bar> show-mouse-help show-status show-summary hide-status } related-words
diff --git a/extra/ui/gadgets/status-bar/status-bar.factor b/extra/ui/gadgets/status-bar/status-bar.factor
deleted file mode 100755
index b528d6739c..0000000000
--- a/extra/ui/gadgets/status-bar/status-bar.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-! Copyright (C) 2007, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: models sequences ui.gadgets.labels ui.gadgets.theme
-ui.gadgets.tracks ui.gadgets.worlds ui.gadgets ui kernel
-calendar ;
-IN: ui.gadgets.status-bar
-
-: <status-bar> ( model -- gadget )
-    1/10 seconds <delay> [ "" like ] <filter> <label-control>
-    dup reverse-video-theme
-    t over set-gadget-root? ;
-
-: open-status-window ( gadget title -- )
-    >r [
-        1 track,
-        f <model> dup <status-bar> f track,
-    ] { 0 1 } make-track r> rot <world> open-world-window ;
diff --git a/extra/ui/gadgets/tabs/authors.txt b/extra/ui/gadgets/tabs/authors.txt
new file mode 100755
index 0000000000..50c9c38812
--- /dev/null
+++ b/extra/ui/gadgets/tabs/authors.txt
@@ -0,0 +1 @@
+William Schlieper
\ No newline at end of file
diff --git a/extra/ui/gadgets/tabs/summary.txt b/extra/ui/gadgets/tabs/summary.txt
new file mode 100755
index 0000000000..a55610bcc0
--- /dev/null
+++ b/extra/ui/gadgets/tabs/summary.txt
@@ -0,0 +1 @@
+Tabbed windows
\ No newline at end of file
diff --git a/extra/ui/gadgets/tabs/tabs.factor b/extra/ui/gadgets/tabs/tabs.factor
new file mode 100755
index 0000000000..50e2df2e9e
--- /dev/null
+++ b/extra/ui/gadgets/tabs/tabs.factor
@@ -0,0 +1,62 @@
+! Copyright (C) 2008 William Schlieper
+! See http://factorcode.org/license.txt for BSD license.
+
+USING: accessors kernel fry math math.vectors sequences arrays vectors assocs
+       hashtables models models.range models.compose combinators
+       ui ui.gadgets ui.gadgets.buttons ui.gadgets.frames ui.gadgets.packs
+       ui.gadgets.grids ui.gadgets.viewports ui.gadgets.books locals ;
+
+IN: ui.gadgets.tabs
+
+TUPLE: tabbed < frame names toggler content ;
+
+DEFER: (del-page)
+
+:: add-toggle ( model n name toggler -- )
+  <frame>
+    n name toggler parent>> '[ , , , (del-page) ] "X" swap <bevel-button>
+      @right grid-add
+    n model name <toggle-button> @center grid-add
+  toggler swap add-gadget drop ;
+
+: redo-toggler ( tabbed -- )
+     [ names>> ] [ model>> ] [ toggler>> ] tri
+     [ clear-gadget ] keep
+     [ [ length ] keep ] 2dip
+    '[ , _ _ , add-toggle ] 2each ;
+
+: refresh-book ( tabbed -- )
+    model>> [ ] change-model ;
+
+: (del-page) ( n name tabbed -- )
+    { [ [ remove ] change-names redo-toggler ]
+      [ dupd [ names>> length ] [ model>> ] bi
+        [ [ = ] keep swap [ 1- ] when
+          [ < ] keep swap [ 1- ] when ] change-model ]
+      [ content>> nth-gadget unparent ]
+      [ refresh-book ]
+    } cleave ;
+
+: add-page ( page name tabbed -- )
+    [ names>> push ] 2keep
+    [ [ model>> swap ]
+      [ names>> length 1 - swap ]
+      [ toggler>> ] tri add-toggle ]
+    [ content>> swap add-gadget drop ]
+    [ refresh-book ] tri ;
+
+: del-page ( name tabbed -- )
+    [ names>> index ] 2keep (del-page) ;
+
+: new-tabbed ( assoc class -- tabbed )
+    new-frame
+    0 <model> >>model
+    <pile> 1 >>fill >>toggler
+    dup toggler>> @left grid-add
+    swap
+      [ keys >vector >>names ]
+      [ values over model>> <book> >>content dup content>> @center grid-add ]
+    bi
+    dup redo-toggler ;
+    
+: <tabbed> ( assoc -- tabbed ) tabbed new-tabbed ;
diff --git a/extra/ui/gadgets/theme/theme.factor b/extra/ui/gadgets/theme/theme.factor
deleted file mode 100644
index 77e9375d90..0000000000
--- a/extra/ui/gadgets/theme/theme.factor
+++ /dev/null
@@ -1,57 +0,0 @@
-! Copyright (C) 2005, 2007 Slava Pestov.
-! Copyright (C) 2006, 2007 Alex Chapman.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel sequences io.styles ui.gadgets ui.render
-colors ;
-IN: ui.gadgets.theme
-
-: solid-interior <solid> swap set-gadget-interior ;
-
-: solid-boundary <solid> swap set-gadget-boundary ;
-
-: faint-boundary gray solid-boundary ;
-
-: selection-color light-purple ;
-
-: plain-gradient
-    T{ gradient f {
-        { 0.94 0.94 0.94 1.0 }
-        { 0.83 0.83 0.83 1.0 }
-        { 0.83 0.83 0.83 1.0 }
-        { 0.62 0.62 0.62 1.0 }
-    } } ;
-
-: rollover-gradient
-    T{ gradient f {
-        { 1.0 1.0 1.0 1.0 }
-        { 0.9 0.9 0.9 1.0 }
-        { 0.9 0.9 0.9 1.0 }
-        { 0.75 0.75 0.75 1.0 }
-    } } ;
-
-: pressed-gradient
-    T{ gradient f {
-        { 0.75 0.75 0.75 1.0 }
-        { 0.9 0.9 0.9 1.0 }
-        { 0.9 0.9 0.9 1.0 }
-        { 1.0 1.0 1.0 1.0 }
-    } } ;
-
-: selected-gradient
-    T{ gradient f {
-        { 0.65 0.65 0.65 1.0 }
-        { 0.8 0.8 0.8 1.0 }
-        { 0.8 0.8 0.8 1.0 }
-        { 1.0 1.0 1.0 1.0 }
-    } } ;
-
-: lowered-gradient
-    T{ gradient f {
-        { 0.37 0.37 0.37 1.0 }
-        { 0.43 0.43 0.43 1.0 }
-        { 0.5 0.5 0.5 1.0 }
-    } } ;
-
-: sans-serif-font { "sans-serif" plain 12 } ;
-
-: monospace-font { "monospace" plain 12 } ;
diff --git a/extra/ui/gadgets/tiling/tiling.factor b/extra/ui/gadgets/tiling/tiling.factor
new file mode 100644
index 0000000000..2d096966af
--- /dev/null
+++ b/extra/ui/gadgets/tiling/tiling.factor
@@ -0,0 +1,153 @@
+
+USING: kernel sequences math math.order
+       ui.gadgets ui.gadgets.tracks ui.gestures
+       fry accessors ;
+
+IN: ui.gadgets.tiling
+
+TUPLE: tiling < track gadgets tiles first focused ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: init-tiling ( tiling -- tiling )
+  init-track
+  { 1 0 }    >>orientation
+  V{ } clone >>gadgets
+  2          >>tiles
+  0          >>first
+  0          >>focused ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: <tiling> ( -- gadget ) tiling new init-tiling ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: bounded-subseq ( seq a b -- seq )
+  [ 0 max ] dip
+  pick length [ min ] curry bi@
+  rot
+  subseq ;
+
+: tiling-gadgets-to-map ( tiling -- gadgets )
+  [ gadgets>> ]
+  [ first>> ]
+  [ [ first>> ] [ tiles>> ] bi + ]
+  tri
+  bounded-subseq ;
+
+: tiling-map-gadgets ( tiling -- tiling )
+  dup clear-track
+  dup tiling-gadgets-to-map [ 1 track-add ] each ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: tiling-add ( tiling gadget -- tiling )
+  over gadgets>> push
+  tiling-map-gadgets ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: first-gadget ( tiling -- index ) drop 0 ;
+
+: last-gadget ( tiling -- index ) gadgets>> length 1 - ;
+
+: first-viewable ( tiling -- index ) first>> ;
+
+: last-viewable ( tiling -- index ) [ first>> ] [ tiles>> ] bi + 1 - ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: make-focused-mapped ( tiling -- tiling )
+
+  dup [ focused>> ] [ first>> ] bi <
+    [ dup first>> 1 - >>first ]
+    [ ]
+  if
+
+  dup [ last-viewable ] [ focused>> ] bi <
+    [ dup first>> 1 + >>first ]
+    [ ]
+  if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: check-focused-bounds ( tiling -- tiling )
+  dup focused>> 0 max over gadgets>> length 1 - min >>focused ;
+
+: focus-prev ( tiling -- tiling )
+  dup focused>> 1 - >>focused
+  check-focused-bounds
+  make-focused-mapped
+  tiling-map-gadgets
+  dup request-focus ;
+
+: focus-next ( tiling -- tiling )
+  dup focused>> 1 + >>focused
+  check-focused-bounds
+  make-focused-mapped
+  tiling-map-gadgets
+  dup request-focus ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: exchanged! ( seq a b -- )
+                   [ 0 max ] bi@
+  pick length 1 - '[ , min ] bi@
+  rot exchange ;
+
+: move-prev ( tiling -- tiling )
+  dup [ gadgets>> ] [ focused>> 1 - ] [ focused>> ] tri exchanged!
+  focus-prev ;
+
+: move-next ( tiling -- tiling )
+  dup [ gadgets>> ] [ focused>> ] [ focused>> 1 + ] tri exchanged!
+  focus-next ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: add-tile ( tiling -- tiling )
+  dup tiles>> 1 + >>tiles
+  tiling-map-gadgets ;
+
+: del-tile ( tiling -- tiling )
+  dup tiles>> 1 - 1 max >>tiles
+  tiling-map-gadgets ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: tiling focusable-child* ( tiling -- child/t )
+   [ focused>> ] [ gadgets>> ] bi nth ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+TUPLE: tiling-shelf < tiling ;
+TUPLE: tiling-pile  < tiling ;
+
+: <tiling-shelf> ( -- gadget )
+  tiling-shelf new init-tiling { 1 0 } >>orientation ;
+
+: <tiling-pile> ( -- gadget )
+  tiling-pile new init-tiling { 0 1 } >>orientation ;
+
+tiling-shelf
+ H{
+    { T{ key-down f { A+    } "LEFT"  } [ focus-prev  drop ] }
+    { T{ key-down f { A+    } "RIGHT" } [ focus-next drop ] }
+    { T{ key-down f { S+ A+ } "LEFT"  } [ move-prev   drop ] }
+    { T{ key-down f { S+ A+ } "RIGHT" } [ move-next  drop ] }
+    { T{ key-down f { C+    } "["     } [ del-tile  drop ] }
+    { T{ key-down f { C+    } "]"     } [ add-tile  drop ] }
+  }
+set-gestures
+
+tiling-pile
+ H{
+    { T{ key-down f { A+    } "UP"  } [ focus-prev  drop ] }
+    { T{ key-down f { A+    } "DOWN" } [ focus-next drop ] }
+    { T{ key-down f { S+ A+ } "UP"  } [ move-prev   drop ] }
+    { T{ key-down f { S+ A+ } "DOWN" } [ move-next  drop ] }
+    { T{ key-down f { C+    } "["     } [ del-tile  drop ] }
+    { T{ key-down f { C+    } "]"     } [ add-tile  drop ] }
+  }
+set-gestures
diff --git a/extra/ui/gadgets/tracks/tracks-docs.factor b/extra/ui/gadgets/tracks/tracks-docs.factor
deleted file mode 100755
index f10996135d..0000000000
--- a/extra/ui/gadgets/tracks/tracks-docs.factor
+++ /dev/null
@@ -1,28 +0,0 @@
-USING: ui.gadgets.packs help.markup help.syntax ui.gadgets
-arrays kernel quotations classes.tuple ;
-IN: ui.gadgets.tracks
-
-HELP: track
-{ $class-description "A track is like a " { $link pack } " except each child is resized to a fixed multiple of the track's dimension in the direction of " { $link gadget-orientation } ". Tracks are created by calling " { $link <track> } "." } ;
-
-HELP: <track>
-{ $values { "orientation" "an orientation specifier" } { "track" "a new " { $link track } } }
-{ $description "Creates a new track which lays out children along the given axis. Children are laid out vertically if the orientation is " { $snippet "{ 0 1 }" } " and horizontally if the orientation is " { $snippet "{ 1 0 }" } "." } ; 
-
-{ <track> make-track build-track } related-words
-
-HELP: track-add
-{ $values { "gadget" gadget } { "track" track } { "constraint" "a number between 0 and 1, or " { $link f } } }
-{ $description "Adds a new child to a track. If the constraint is " { $link f } ", the child always occupies its preferred size. Otherwise, the constrant is a fraction of the total size which is allocated for the child." } ;
-
-HELP: track,
-{ $values { "gadget" gadget } { "constraint" "a number between 0 and 1, or " { $link f } } }
-{ $description "Adds a new child to a track. If the constraint is " { $link f } ", the child always occupies its preferred size. Otherwise, the constrant is a fraction of the total size which is allocated for the child. This word can only be called inside the quotation passed to " { $link make-track } " or " { $link build-track } "." } ;
-
-HELP: make-track
-{ $values { "quot" quotation } { "orientation" "an orientation specifier" } { "track" track } }
-{ $description "Creates a new track. The quotation can add children by calling the " { $link track, } " word." } ;
-
-HELP: build-track
-{ $values { "tuple" tuple } { "quot" quotation } { "orientation" "an orientation specifier" } }
-{ $description "Creates a new track and sets " { $snippet "tuple" } "'s delegate to the new track. The quotation can add children by calling the " { $link track, } " word, and access the track by calling " { $link g } " or " { $link g-> } "." } ;
diff --git a/extra/ui/gadgets/tracks/tracks-tests.factor b/extra/ui/gadgets/tracks/tracks-tests.factor
deleted file mode 100644
index e2db914089..0000000000
--- a/extra/ui/gadgets/tracks/tracks-tests.factor
+++ /dev/null
@@ -1,15 +0,0 @@
-USING: kernel ui.gadgets ui.gadgets.tracks tools.test ;
-IN: ui.gadgets.tracks.tests
-
-[ { 100 100 } ] [
-    [
-        <gadget> { 100 100 } over set-rect-dim 1 track,
-    ] { 0 1 } make-track pref-dim
-] unit-test
-
-[ { 100 110 } ] [
-    [
-        <gadget> { 10 10 } over set-rect-dim f track,
-        <gadget> { 100 100 } over set-rect-dim 1 track,
-    ] { 0 1 } make-track pref-dim
-] unit-test
diff --git a/extra/ui/gadgets/tracks/tracks.factor b/extra/ui/gadgets/tracks/tracks.factor
deleted file mode 100644
index cf97bedb8d..0000000000
--- a/extra/ui/gadgets/tracks/tracks.factor
+++ /dev/null
@@ -1,66 +0,0 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: ui.gadgets ui.gadgets.packs io kernel math namespaces
-sequences words math.vectors ;
-IN: ui.gadgets.tracks
-
-TUPLE: track sizes ;
-
-: normalized-sizes ( track -- seq )
-    track-sizes
-    [ sift sum ] keep [ dup [ over / ] when ] map nip ;
-
-: <track> ( orientation -- track )
-    <pack> V{ } clone
-    { set-delegate set-track-sizes } track construct
-    1 over set-pack-fill ;
-
-: alloted-dim ( track -- dim )
-    dup gadget-children swap track-sizes { 0 0 }
-    [ [ drop { 0 0 } ] [ pref-dim ] if v+ ] 2reduce ;
-
-: available-dim ( track -- dim )
-    dup rect-dim swap alloted-dim v- ;
-
-: track-layout ( track -- sizes )
-    dup available-dim over gadget-children rot normalized-sizes
-    [ [ over n*v ] [ pref-dim ] ?if ] 2map nip ;
-
-M: track layout*
-    dup track-layout pack-layout ;
-
-: track-pref-dims-1 ( track -- dim )
-    gadget-children pref-dims max-dim ;
-
-: track-pref-dims-2 ( track -- dim )
-    dup gadget-children pref-dims swap normalized-sizes
-    [ [ v/n ] when* ] 2map max-dim [ >fixnum ] map ;
-
-M: track pref-dim*
-    dup track-pref-dims-1
-    over alloted-dim
-    pick track-pref-dims-2 v+
-    rot gadget-orientation set-axis ;
-
-: track-add ( gadget track constraint -- )
-    over track-sizes push add-gadget ;
-
-: track, ( gadget constraint -- )
-    \ make-gadget get swap track-add ;
-
-: make-track ( quot orientation -- track )
-    <track> make-gadget ; inline
-
-: build-track ( tuple quot orientation -- tuple )
-    <track> build-gadget ; inline
-
-: track-remove ( gadget track -- )
-    over [
-        [ gadget-children index ] 2keep
-        swap unparent track-sizes delete-nth
-    ] [
-        2drop
-    ] if ;
-
-: clear-track ( track -- )
-    V{ } clone over set-track-sizes clear-gadget ;
diff --git a/extra/ui/tools/debugger/debugger.factor b/extra/ui/tools/debugger/debugger.factor
deleted file mode 100644
index 8cb581b1c2..0000000000
--- a/extra/ui/tools/debugger/debugger.factor
+++ /dev/null
@@ -1,61 +0,0 @@
-! Copyright (C) 2006, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: arrays ui ui.commands ui.gestures ui.gadgets
-ui.gadgets.worlds ui.gadgets.packs ui.gadgets.buttons
-ui.gadgets.labels ui.gadgets.panes ui.gadgets.presentations
-ui.gadgets.viewports ui.gadgets.lists ui.gadgets.tracks
-ui.gadgets.scrollers ui.gadgets.panes hashtables io kernel math
-models namespaces sequences sequences words continuations
-debugger prettyprint ui.tools.traceback help editors ;
-IN: ui.tools.debugger
-
-: <restart-list> ( restarts restart-hook -- gadget )
-    [ restart-name ] rot <model> <list> ;
-
-TUPLE: debugger restarts ;
-
-: <debugger-display> ( restart-list error -- gadget )
-    [
-        <pane> [ [ print-error ] with-pane ] keep gadget,
-        gadget,
-    ] make-filled-pile ;
-
-: <debugger> ( error restarts restart-hook -- gadget )
-    debugger new
-    [
-        toolbar,
-        <restart-list> g-> set-debugger-restarts
-        swap <debugger-display> <scroller> 1 track,
-    ] { 0 1 } build-track ;
-
-M: debugger focusable-child* debugger-restarts ;
-
-: debugger-window ( error -- )
-    #! No restarts for the debugger window
-    f [ drop ] <debugger> "Error" open-window ;
-
-[ debugger-window ] ui-error-hook set-global
-
-M: world-error error.
-    "An error occurred while drawing the world " write
-    dup world-error-world pprint-short "." print
-    "This world has been deactivated to prevent cascading errors." print
-    delegate error. ;
-
-debugger "gestures" f {
-    { T{ button-down } request-focus }
-} define-command-map
-
-: com-traceback error-continuation get traceback-window ;
-
-\ com-traceback H{ { +nullary+ t } } define-command
-
-\ :help H{ { +nullary+ t } { +listener+ t } } define-command
-
-\ :edit H{ { +nullary+ t } { +listener+ t } } define-command
-
-debugger "toolbar" f {
-    { T{ key-down f f "s" } com-traceback }
-    { T{ key-down f f "h" } :help }
-    { T{ key-down f f "e" } :edit }
-} define-command-map
diff --git a/extra/ui/tools/deploy/deploy.factor b/extra/ui/tools/deploy/deploy.factor
deleted file mode 100755
index d01f7ab139..0000000000
--- a/extra/ui/tools/deploy/deploy.factor
+++ /dev/null
@@ -1,117 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: ui.gadgets colors kernel ui.render namespaces
-models sequences ui.gadgets.buttons
-ui.gadgets.packs ui.gadgets.labels tools.deploy.config
-namespaces ui.gadgets.editors ui.gadgets.borders ui.gestures
-ui.commands assocs ui.gadgets.tracks ui ui.tools.listener
-tools.deploy vocabs ui.tools.workspace system ;
-IN: ui.tools.deploy
-
-TUPLE: deploy-gadget vocab settings ;
-
-: bundle-name ( -- )
-    deploy-name get <field>
-    "Executable name:" label-on-left gadget, ;
-
-: deploy-ui ( -- )
-    deploy-ui? get
-    "Include user interface framework" <checkbox> gadget, ;
-
-: exit-when-windows-closed ( -- )
-    "stop-after-last-window?" get
-    "Exit when last UI window closed" <checkbox> gadget, ;
-
-: io-settings ( -- )
-    "Input/output support:" <label> gadget,
-    deploy-io get deploy-io-options <radio-buttons> gadget, ;
-
-: reflection-settings ( -- )
-    "Reflection support:" <label> gadget,
-    deploy-reflection get deploy-reflection-options <radio-buttons> gadget, ;
-
-: advanced-settings ( -- )
-    "Advanced:" <label> gadget,
-    deploy-compiler? get "Use optimizing compiler" <checkbox> gadget,
-    deploy-math? get "Rational and complex number support" <checkbox> gadget,
-    deploy-threads? get "Threading support" <checkbox> gadget,
-    deploy-random? get "Random number generator support" <checkbox> gadget,
-    deploy-word-props? get "Retain all word properties" <checkbox> gadget,
-    deploy-word-defs? get "Retain all word definitions" <checkbox> gadget,
-    deploy-c-types? get "Retain all C types" <checkbox> gadget, ;
-
-: deploy-settings-theme
-    { 10 10 } over set-pack-gap
-    1 swap set-pack-fill ;
-
-: <deploy-settings> ( vocab -- control )
-    default-config [ <model> ] assoc-map [
-        [
-            bundle-name
-            deploy-ui
-            os macosx? [ exit-when-windows-closed ] when
-            io-settings
-            reflection-settings
-            advanced-settings
-        ] make-pile dup deploy-settings-theme
-        namespace <mapping> over set-gadget-model
-    ] bind ;
-
-: find-deploy-gadget
-    [ deploy-gadget? ] find-parent ;
-
-: find-deploy-vocab
-    find-deploy-gadget deploy-gadget-vocab ;
-
-: find-deploy-config
-    find-deploy-vocab deploy-config ;
-
-: find-deploy-settings
-    find-deploy-gadget deploy-gadget-settings ;
-
-: com-revert ( gadget -- )
-    dup find-deploy-config
-    swap find-deploy-settings set-control-value ;
-
-: com-save ( gadget -- )
-    dup find-deploy-settings control-value
-    swap find-deploy-vocab set-deploy-config ;
-
-: com-deploy ( gadget -- )
-    dup com-save
-    dup find-deploy-vocab [ deploy ] curry call-listener
-    close-window ;
-
-: com-help ( -- )
-    "ui.tools.deploy" help-window ;
-
-\ com-help H{
-    { +nullary+ t }
-} define-command
-
-: com-close ( gadget -- )
-    close-window ;
-
-deploy-gadget "toolbar" f {
-    { f com-close }
-    { f com-help }
-    { f com-revert }
-    { f com-save }
-    { T{ key-down f f "RET" } com-deploy }
-} define-command-map
-
-: buttons,
-    g <toolbar> { 10 10 } over set-pack-gap gadget, ;
-
-: <deploy-gadget> ( vocab -- gadget )
-    f deploy-gadget boa [
-        dup <deploy-settings>
-        g-> set-deploy-gadget-settings gadget,
-        buttons,
-    ] { 0 1 } build-pack
-    dup deploy-settings-theme
-    dup com-revert ;
-
-: deploy-tool ( vocab -- )
-    vocab-name dup <deploy-gadget> 10 <border>
-    "Deploying \"" rot "\"" 3append open-window ;
diff --git a/extra/ui/tools/traceback/traceback.factor b/extra/ui/tools/traceback/traceback.factor
deleted file mode 100755
index d32d110871..0000000000
--- a/extra/ui/tools/traceback/traceback.factor
+++ /dev/null
@@ -1,56 +0,0 @@
-! Copyright (C) 2006, 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: continuations kernel models namespaces prettyprint ui
-ui.commands ui.gadgets ui.gadgets.labelled assocs
-ui.gadgets.tracks ui.gadgets.buttons ui.gadgets.panes
-ui.gadgets.status-bar ui.gadgets.scrollers
-ui.gestures sequences hashtables inspector ;
-IN: ui.tools.traceback
-
-: <callstack-display> ( model -- gadget )
-    [ [ continuation-call callstack. ] when* ]
-    t "Call stack" <labelled-pane> ;
-
-: <datastack-display> ( model -- gadget )
-    [ [ continuation-data stack. ] when* ]
-    t "Data stack" <labelled-pane> ;
-
-: <retainstack-display> ( model -- gadget )
-    [ [ continuation-retain stack. ] when* ]
-    t "Retain stack" <labelled-pane> ;
-
-TUPLE: traceback-gadget ;
-
-M: traceback-gadget pref-dim* drop { 550 600 } ;
-
-: <traceback-gadget> ( model -- gadget )
-    { 0 1 } <track> traceback-gadget construct-control [
-        [
-            [
-                g gadget-model <datastack-display> 1/2 track,
-                g gadget-model <retainstack-display> 1/2 track,
-            ] { 1 0 } make-track 1/3 track,
-            g gadget-model <callstack-display> 2/3 track,
-            toolbar,
-        ] with-gadget
-    ] keep ;
-
-: <namestack-display> ( model -- gadget )
-    [ [ continuation-name namestack. ] when* ]
-    <pane-control> ;
-
-TUPLE: variables-gadget ;
-
-: <variables-gadget> ( model -- gadget )
-    <namestack-display> <scroller>
-    variables-gadget new
-    [ set-gadget-delegate ] keep ;
-
-M: variables-gadget pref-dim* drop { 400 400 } ;
-
-: variables ( traceback -- )
-    gadget-model <variables-gadget>
-    "Dynamic variables" open-status-window ;
-
-: traceback-window ( continuation -- )
-    <model> <traceback-gadget> "Traceback" open-window ;
diff --git a/extra/ui/tools/walker/tags.txt b/extra/ui/tools/walker/tags.txt
deleted file mode 100644
index ef1aab0d0e..0000000000
--- a/extra/ui/tools/walker/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-tools
diff --git a/extra/ui/tools/workspace/tags.txt b/extra/ui/tools/workspace/tags.txt
deleted file mode 100644
index ef1aab0d0e..0000000000
--- a/extra/ui/tools/workspace/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-tools
diff --git a/extra/unicode/unicode.factor b/extra/unicode/unicode.factor
deleted file mode 100755
index 0c22bfab8f..0000000000
--- a/extra/unicode/unicode.factor
+++ /dev/null
@@ -1,9 +0,0 @@
-USING: unicode.syntax unicode.data unicode.breaks
-unicode.normalize unicode.case unicode.categories
-parser kernel namespaces ;
-IN: unicode
-
-! For now: convenience to load all Unicode vocabs
-
-[ name>char [ "Invalid character" throw ] unless* ]
-name>char-hook set-global
diff --git a/extra/units/si/si.factor b/extra/units/si/si.factor
index 9029d6bd35..66f7c1e7a7 100644
--- a/extra/units/si/si.factor
+++ b/extra/units/si/si.factor
@@ -26,17 +26,17 @@ IN: units.si
 : cd ( n -- dimensioned ) { cd } { } <dimensioned> ;
 
 ! SI derived units
-: m^2 { m m } { } <dimensioned> ;
-: m^3 { m m m } { } <dimensioned> ;
-: m/s { m } { s } <dimensioned> ;
-: m/s^2 { m } { s s } <dimensioned> ;
-: 1/m { } { m } <dimensioned> ;
-: kg/m^3 { kg } { m m m } <dimensioned> ;
-: A/m^2 { A } { m m } <dimensioned> ;
-: A/m { A } { m } <dimensioned> ;
-: mol/m^3 { mol } { m m m } <dimensioned> ;
-: cd/m^2 { cd } { m m } <dimensioned> ;
-: kg/kg { kg } { kg } <dimensioned> ;
+: m^2 ( n -- dimensioned ) { m m } { } <dimensioned> ;
+: m^3 ( n -- dimensioned ) { m m m } { } <dimensioned> ;
+: m/s ( n -- dimensioned ) { m } { s } <dimensioned> ;
+: m/s^2 ( n -- dimensioned ) { m } { s s } <dimensioned> ;
+: 1/m ( n -- dimensioned ) { } { m } <dimensioned> ;
+: kg/m^3 ( n -- dimensioned ) { kg } { m m m } <dimensioned> ;
+: A/m^2 ( n -- dimensioned ) { A } { m m } <dimensioned> ;
+: A/m ( n -- dimensioned ) { A } { m } <dimensioned> ;
+: mol/m^3 ( n -- dimensioned ) { mol } { m m m } <dimensioned> ;
+: cd/m^2 ( n -- dimensioned ) { cd } { m m } <dimensioned> ;
+: kg/kg ( n -- dimensioned ) { kg } { kg } <dimensioned> ;
 
 ! Radians are really m/m, and steradians are m^2/m^2
 ! but they need to be in reduced form here.
@@ -65,9 +65,9 @@ IN: units.si
 : kat ( n -- katal ) { mol } { s } <dimensioned> ;
 
 ! Extensions to the SI
-: arc-deg pi 180 / * radians ;
-: arc-min pi 10800 / * radians ;
-: arc-sec pi 648000 / * radians ;
+: arc-deg ( n -- x ) pi 180 / * radians ;
+: arc-min ( n -- x ) pi 10800 / * radians ;
+: arc-sec ( n -- x ) pi 648000 / * radians ;
 : L ( n -- liter ) 1/1000 * m^3 ;
 : tons ( n -- metric-ton ) 1000 * kg ;
 : Np ( n -- neper ) { } { } <dimensioned> ;
@@ -83,43 +83,43 @@ IN: units.si
 : bar ( n -- bar ) 100000 * Pa ;
 : b ( n -- barn ) 1/10000000000000000000000000000 * m^2 ;
 : Ci ( n -- curie ) 37000000000 * Bq ;
-: R 258/10000 { s A } { kg } <dimensioned> ;
-: rad 100 / Gy ;
+: R ( -- dimensioned ) 258/10000 { s A } { kg } <dimensioned> ;
+: rad ( n -- dimensioned ) 100 / Gy ;
 
 ! roentgen equivalent man, equal to one roentgen of X-rays
-: roentgen-equivalent-man 100 / Sv ;
+: roentgen-equivalent-man ( n -- dimensioned ) 100 / Sv ;
 
 ! inaccurate, use calendar where possible
-: minutes 60 * s ;
-: hours 60 * minutes ;
-: days 24 * hours ;
+: minutes ( n -- dimensioned ) 60 * s ;
+: hours ( n -- dimensioned ) 60 * minutes ;
+: days ( n -- dimensioned ) 24 * hours ;
 
 ! Y Z E P T G M k h da 1 d c m mu n p f a z y
-: yotta 1000000000000000000000000 * ;
-: zetta 1000000000000000000000 * ;
-: exa   1000000000000000000 * ;
-: peta  1000000000000000 * ;
-: tera  1000000000000 * ;
-: giga  1000000000 * ;
-: mega  1000000 * ;
-: kilo  1000 * ;
-: hecto 100 * ;
-: deca  10 * ;
-: deci  10 / ;
-: centi 100 / ;
-: milli 1000 / ;
-: micro 1000000 / ;
-: nano  1000000000 / ;
-: pico  1000000000000 / ;
-: femto 1000000000000000 / ;
-: atto  1000000000000000000 / ;
-: zepto 1000000000000000000000 / ;
-: yocto 1000000000000000000000000 / ;
+: yotta ( n -- x ) 1000000000000000000000000 * ;
+: zetta ( n -- x ) 1000000000000000000000 * ;
+: exa   ( n -- x ) 1000000000000000000 * ;
+: peta  ( n -- x ) 1000000000000000 * ;
+: tera  ( n -- x ) 1000000000000 * ;
+: giga  ( n -- x ) 1000000000 * ;
+: mega  ( n -- x ) 1000000 * ;
+: kilo  ( n -- x ) 1000 * ;
+: hecto ( n -- x ) 100 * ;
+: deca  ( n -- x ) 10 * ;
+: deci  ( n -- x ) 10 / ;
+: centi ( n -- x ) 100 / ;
+: milli ( n -- x ) 1000 / ;
+: micro ( n -- x ) 1000000 / ;
+: nano  ( n -- x ) 1000000000 / ;
+: pico  ( n -- x ) 1000000000000 / ;
+: femto ( n -- x ) 1000000000000000 / ;
+: atto  ( n -- x ) 1000000000000000000 / ;
+: zepto ( n -- x ) 1000000000000000000000 / ;
+: yocto ( n -- x ) 1000000000000000000000000 / ;
 
-: km kilo m ;
-: cm centi m ;
-: mm milli m ;
-: nm nano m ;
-: g milli kg ;
-: ms milli s ;
-: angstrom 10 / nm ;
+: km ( n -- dimensioned ) kilo m ;
+: cm ( n -- dimensioned ) centi m ;
+: mm ( n -- dimensioned ) milli m ;
+: nm ( n -- dimensioned ) nano m ;
+: g ( n -- dimensioned ) milli kg ;
+: ms ( n -- dimensioned ) milli s ;
+: angstrom ( n -- dimensioned ) 10 / nm ;
diff --git a/extra/units/units.factor b/extra/units/units.factor
index 32baf9e7ed..02005fcd1f 100755
--- a/extra/units/units.factor
+++ b/extra/units/units.factor
@@ -1,6 +1,6 @@
-USING: arrays io kernel math namespaces splitting prettyprint
-sequences sorting vectors words inverse inspector shuffle
-math.functions sets ;
+USING: accessors arrays io kernel math namespaces splitting
+prettyprint sequences sorting vectors words inverse summary
+shuffle math.functions sets ;
 IN: units
 
 TUPLE: dimensioned value top bot ;
@@ -19,8 +19,8 @@ M: dimensions-not-equal summary drop "Dimensions do not match" ;
     [ remove-one ] curry bi@ ;
 
 : symbolic-reduce ( seq seq -- seq seq )
-    2dup intersect dup empty?
-    [ drop ] [ first 2remove-one symbolic-reduce ] if ;
+    2dup intersect
+    [ first 2remove-one symbolic-reduce ] unless-empty ;
 
 : <dimensioned> ( n top bot -- obj )
     symbolic-reduce
@@ -28,24 +28,23 @@ M: dimensions-not-equal summary drop "Dimensions do not match" ;
     dimensioned boa ;
 
 : >dimensioned< ( d -- n top bot )
-    { dimensioned-value dimensioned-top dimensioned-bot }
-    get-slots ;
+    [ value>> ] [ top>> ] [ bot>> ] tri ;
 
 \ <dimensioned> [ >dimensioned< ] define-inverse
 
 : dimensions ( dimensioned -- top bot )
-    { dimensioned-top dimensioned-bot } get-slots ;
+    [ top>> ] [ bot>> ] bi ;
 
 : check-dimensions ( d d -- )
     [ dimensions 2array ] bi@ =
     [ dimensions-not-equal ] unless ;
 
-: 2values [ dimensioned-value ] bi@ ;
+: 2values ( dim dim -- val val ) [ value>> ] bi@ ;
 
-: <dimension-op
+: <dimension-op ( dim dim -- top bot val val )
     2dup check-dimensions dup dimensions 2swap 2values ;
 
-: dimension-op>
+: dimension-op> ( top bot val -- dim )
     -rot <dimensioned> ;
 
 : d+ ( d d -- d ) <dimension-op + dimension-op> ;
@@ -57,8 +56,8 @@ M: dimensions-not-equal summary drop "Dimensions do not match" ;
 
 : d* ( d d -- d )
     [ dup number? [ scalar ] when ] bi@
-    [ [ dimensioned-top ] bi@ append ] 2keep
-    [ [ dimensioned-bot ] bi@ append ] 2keep
+    [ [ top>> ] bi@ append ] 2keep
+    [ [ bot>> ] bi@ append ] 2keep
     2values * dimension-op> ;
 
 : d-neg ( d -- d ) -1 d* ;
diff --git a/extra/unix/linux/swap/authors.txt b/extra/unix/linux/swap/authors.txt
deleted file mode 100755
index 6cfd5da273..0000000000
--- a/extra/unix/linux/swap/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Eduardo Cavazos
diff --git a/extra/unix/process/authors.txt b/extra/unix/process/authors.txt
deleted file mode 100755
index 6cfd5da273..0000000000
--- a/extra/unix/process/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Eduardo Cavazos
diff --git a/extra/update/backup/backup.factor b/extra/update/backup/backup.factor
index bb6d17f6dd..0dcf853b98 100644
--- a/extra/update/backup/backup.factor
+++ b/extra/update/backup/backup.factor
@@ -1,5 +1,5 @@
 
-USING: namespaces io.files bootstrap.image builder.util ;
+USING: namespaces debugger io.files bootstrap.image builder.util ;
 
 IN: update.backup
 
@@ -20,6 +20,9 @@ IN: update.backup
 
 : backup ( -- )
   datestamp "datestamp" set
-  backup-boot-image
-  backup-image
-  backup-vm ;
+    [
+      backup-boot-image
+      backup-image
+      backup-vm
+    ]
+  try ;
diff --git a/extra/urls/urls-tests.factor b/extra/urls/urls-tests.factor
deleted file mode 100644
index 080352449b..0000000000
--- a/extra/urls/urls-tests.factor
+++ /dev/null
@@ -1,224 +0,0 @@
-IN: urls.tests
-USING: urls tools.test tuple-syntax arrays kernel assocs ;
-
-[ "hello%20world" ] [ "hello world" url-encode ] unit-test
-[ "hello world" ] [ "hello%20world" url-decode ] unit-test
-[ "~hello world" ] [ "%7ehello+world" url-decode ] unit-test
-[ f ] [ "%XX%XX%XX" url-decode ] unit-test
-[ f ] [ "%XX%XX%X" url-decode ] unit-test
-
-[ "hello world"   ] [ "hello+world"    url-decode ] unit-test
-[ "hello world"   ] [ "hello%20world"  url-decode ] unit-test
-[ " ! "           ] [ "%20%21%20"      url-decode ] unit-test
-[ "hello world"   ] [ "hello world%"   url-decode ] unit-test
-[ "hello world"   ] [ "hello world%x"  url-decode ] unit-test
-[ "hello%20world" ] [ "hello world"    url-encode ] unit-test
-[ "%20%21%20"     ] [ " ! "            url-encode ] unit-test
-
-[ "\u001234hi\u002045" ] [ "\u001234hi\u002045" url-encode url-decode ] unit-test
-
-[ "a=b&a=c" ] [ { { "a" { "b" "c" } } } assoc>query ] unit-test
-
-[ H{ { "a" "b" } } ] [ "a=b" query>assoc ] unit-test
-
-[ H{ { "a" { "b" "c" } } } ] [ "a=b&a=c" query>assoc ] unit-test
-
-[ "a=3" ] [ { { "a" 3 } } assoc>query ] unit-test
-
-: urls
-    {
-        {
-            TUPLE{ url
-                protocol: "http"
-                host: "www.apple.com"
-                port: 1234
-                path: "/a/path"
-                query: H{ { "a" "b" } }
-                anchor: "foo"
-            }
-            "http://www.apple.com:1234/a/path?a=b#foo"
-        }
-        {
-            TUPLE{ url
-                protocol: "http"
-                host: "www.apple.com"
-                path: "/a/path"
-                query: H{ { "a" "b" } }
-                anchor: "foo"
-            }
-            "http://www.apple.com/a/path?a=b#foo"
-        }
-        {
-            TUPLE{ url
-                protocol: "http"
-                host: "www.apple.com"
-                port: 1234
-                path: "/another/fine/path"
-                anchor: "foo"
-            }
-            "http://www.apple.com:1234/another/fine/path#foo"
-        }
-        {
-            TUPLE{ url
-                path: "/a/relative/path"
-                anchor: "foo"
-            }
-            "/a/relative/path#foo"
-        }
-        {
-            TUPLE{ url
-                path: "/a/relative/path"
-            }
-            "/a/relative/path"
-        }
-        {
-            TUPLE{ url
-                path: "a/relative/path"
-            }
-            "a/relative/path"
-        }
-        {
-            TUPLE{ url
-                path: "bar"
-                query: H{ { "a" "b" } }
-            }
-            "bar?a=b"
-        }
-        {
-            TUPLE{ url
-                protocol: "ftp"
-                host: "ftp.kernel.org"
-                username: "slava"
-                path: "/"
-            }
-            "ftp://slava@ftp.kernel.org/"
-        }
-        {
-            TUPLE{ url
-                protocol: "ftp"
-                host: "ftp.kernel.org"
-                username: "slava"
-                password: "secret"
-                path: "/"
-            }
-            "ftp://slava:secret@ftp.kernel.org/"
-        }
-    } ;
-
-urls [
-    [ 1array ] [ [ >url ] curry ] bi* unit-test
-] assoc-each
-
-urls [
-    swap [ 1array ] [ [ url>string ] curry ] bi* unit-test
-] assoc-each
-
-[ "b" ] [ "a" "b" url-append-path ] unit-test
-
-[ "a/b" ] [ "a/c" "b" url-append-path ] unit-test
-
-[ "a/b" ] [ "a/" "b" url-append-path ] unit-test
-
-[ "/b" ] [ "a" "/b" url-append-path ] unit-test
-
-[ "/b" ] [ "a/b/" "/b" url-append-path ] unit-test
-
-[ "/xxx/bar" ] [ "/xxx/baz" "bar" url-append-path ] unit-test
-
-[
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        port: 1234
-        path: "/a/path"
-    }
-] [
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        port: 1234
-        path: "/foo"
-    }
-
-    TUPLE{ url
-        path: "/a/path"
-    }
-
-    derive-url
-] unit-test
-
-[
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        port: 1234
-        path: "/a/path/relative/path"
-        query: H{ { "a" "b" } }
-        anchor: "foo"
-    }
-] [
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        port: 1234
-        path: "/a/path/"
-    }
-
-    TUPLE{ url
-        path: "relative/path"
-        query: H{ { "a" "b" } }
-        anchor: "foo"
-    }
-
-    derive-url
-] unit-test
-
-[
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        port: 1234
-        path: "/a/path/relative/path"
-        query: H{ { "a" "b" } }
-        anchor: "foo"
-    }
-] [
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        port: 1234
-        path: "/a/path/"
-    }
-
-    TUPLE{ url
-        path: "relative/path"
-        query: H{ { "a" "b" } }
-        anchor: "foo"
-    }
-
-    derive-url
-] unit-test
-
-[
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        path: "/xxx/baz"
-    }
-] [
-    TUPLE{ url
-        protocol: "http"
-        host: "www.apple.com"
-        path: "/xxx/bar"
-    }
-
-    TUPLE{ url
-        path: "baz"
-    }
-
-    derive-url
-] unit-test
-
-[ "a" ] [
-    <url> "a" "b" set-query-param "b" query-param
-] unit-test
diff --git a/extra/usa-cities/usa-cities.factor b/extra/usa-cities/usa-cities.factor
index 0149c6832b..c5e059c519 100644
--- a/extra/usa-cities/usa-cities.factor
+++ b/extra/usa-cities/usa-cities.factor
@@ -1,8 +1,8 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io.files io.encodings.ascii sequences sequences.lib
-math.parser combinators kernel memoize csv symbols inspector
-words accessors math.order sorting ;
+USING: io.files io.encodings.ascii sequences generalizations
+math.parser combinators kernel memoize csv symbols summary
+words accessors math.order binary-search ;
 IN: usa-cities
 
 SINGLETONS: AK AL AR AS AZ CA CO CT DC DE FL GA HI IA ID IL IN
@@ -21,7 +21,7 @@ ERROR: no-such-state name ;
 M: no-such-state summary drop "No such state" ;
 
 MEMO: string>state ( string -- state )
-    dup states [ word-name = ] with find nip
+    dup states [ name>> = ] with find nip
     [ ] [ no-such-state ] ?if ;
 
 TUPLE: city
@@ -50,4 +50,4 @@ MEMO: cities-named-in ( name state -- cities )
     ] with with filter ;
 
 : find-zip-code ( code -- city )
-    cities [ first-zip>> <=> ] binsearch* ;
+    cities [ first-zip>> <=> ] with search nip ;
diff --git a/extra/values/values.factor b/extra/values/values.factor
deleted file mode 100755
index 0d1ea3bc04..0000000000
--- a/extra/values/values.factor
+++ /dev/null
@@ -1,14 +0,0 @@
-USING: kernel parser sequences words ;
-IN: values
-
-: VALUE:
-    CREATE-WORD { f } clone [ first ] curry define ; parsing
-
-: set-value ( value word -- )
-    word-def first set-first ;
-
-: get-value ( word -- value )
-    word-def first first ;
-
-: change-value ( word quot -- )
-    over >r >r get-value r> call r> set-value ; inline
diff --git a/extra/vars/vars.factor b/extra/vars/vars.factor
index 8c024ce775..7316cd6a6d 100644
--- a/extra/vars/vars.factor
+++ b/extra/vars/vars.factor
@@ -2,27 +2,29 @@
 
 ! Thanks to Mackenzie Straight for the idea
 
-USING: compiler.units kernel parser words namespaces
-sequences quotations ;
+USING: accessors kernel parser lexer words namespaces sequences quotations ;
 
 IN: vars
 
-: define-var-symbol ( str -- ) create-in define-symbol ;
+: define-var-getter ( word -- )
+    [ name>> ">" append create-in ] [ [ get ] curry ] bi
+    (( -- value )) define-declared ;
 
-: define-var-getter ( str -- )
-dup ">" append create-in swap in get lookup [ get ] curry define ;
+: define-var-setter ( word -- )
+    [ name>> ">" prepend create-in ] [ [ set ] curry ] bi
+    (( value -- )) define-declared ;
 
-: define-var-setter ( str -- )
-">" over append create-in swap in get lookup [ set ] curry define ;
-
-: define-var ( str -- ) [
-dup define-var-symbol dup define-var-getter define-var-setter
-] with-compilation-unit ;
+: define-var ( str -- )
+    create-in
+    [ define-symbol ]
+    [ define-var-getter ]
+    [ define-var-setter ] tri ;
 
 : VAR: ! var
     scan define-var ; parsing
 
-: define-vars ( seq -- ) [ define-var ] each ;
+: define-vars ( seq -- )
+    [ define-var ] each ;
 
 : VARS: ! vars ...
-";" parse-tokens define-vars ; parsing
+    ";" parse-tokens define-vars ; parsing
diff --git a/extra/webapps/blogs/blogs-common.xml b/extra/webapps/blogs/blogs-common.xml
new file mode 100644
index 0000000000..e809c0e7f5
--- /dev/null
+++ b/extra/webapps/blogs/blogs-common.xml
@@ -0,0 +1,31 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:atom t:href="$blogs/posts.atom">Recent Posts</t:atom>
+
+	<t:style t:include="resource:extra/webapps/blogs/blogs.css" />
+
+	<div class="navbar">
+
+		  <t:a t:href="$blogs/">All Posts</t:a>
+		| <t:a t:href="$blogs/by">My Posts</t:a>
+		| <t:a t:href="$blogs/new-post">New Post</t:a>
+
+		<t:if t:code="furnace.auth:logged-in?">
+
+			<t:if t:code="furnace.auth.features.edit-profile:allow-edit-profile?">
+				| <t:a t:href="$realm/edit-profile" t:aside="begin">Edit Profile</t:a>
+			</t:if>
+
+			| <t:button t:action="$login-realm/logout" t:aside="begin" class="link-button link">Logout</t:button>
+
+		</t:if>
+
+	</div>
+
+	<h1><t:write-title /></h1>
+
+	<t:call-next-template />
+
+</t:chloe>
diff --git a/extra/webapps/blogs/blogs.css b/extra/webapps/blogs/blogs.css
new file mode 100644
index 0000000000..66676796a4
--- /dev/null
+++ b/extra/webapps/blogs/blogs.css
@@ -0,0 +1,15 @@
+.post-form {
+	border: 2px solid #666;
+	padding: 10px;
+	background: #eee;
+}
+
+.post-title {
+	background-color:#f5f5ff;
+	padding: 3px;
+}
+
+.post-footer {
+	text-align: right;
+	font-size:90%;
+}
diff --git a/extra/webapps/blogs/blogs.factor b/extra/webapps/blogs/blogs.factor
new file mode 100644
index 0000000000..2858ad21f3
--- /dev/null
+++ b/extra/webapps/blogs/blogs.factor
@@ -0,0 +1,306 @@
+! Copyright (C) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors sequences sorting math.order math.parser
+urls validators db db.types db.tuples calendar present namespaces
+html.forms
+html.components
+http.server.dispatchers
+furnace
+furnace.actions
+furnace.redirection
+furnace.auth
+furnace.auth.login
+furnace.boilerplate
+furnace.syndication ;
+IN: webapps.blogs
+
+TUPLE: blogs < dispatcher ;
+
+SYMBOL: can-administer-blogs?
+
+can-administer-blogs? define-capability
+
+: view-post-url ( id -- url )
+    present "$blogs/post/" prepend >url ;
+
+: view-comment-url ( parent id -- url )
+    [ view-post-url ] dip >>anchor ;
+
+: list-posts-url ( -- url )
+    "$blogs/" >url ;
+
+: posts-by-url ( author -- url )
+    "$blogs/by/" prepend >url ;
+
+TUPLE: entity id author date content ;
+
+GENERIC: entity-url ( entity -- url )
+
+M: entity feed-entry-url entity-url ;
+
+entity f {
+    { "id" "ID" INTEGER +db-assigned-id+ }
+    { "author" "AUTHOR" { VARCHAR 256 } +not-null+ } ! uid
+    { "date" "DATE" TIMESTAMP +not-null+ }
+    { "content" "CONTENT" TEXT +not-null+ }
+} define-persistent
+
+M: entity feed-entry-date date>> ;
+
+TUPLE: post < entity title comments ;
+
+M: post feed-entry-title
+    [ author>> ] [ title>> ] bi ": " swap 3append ;
+
+M: post entity-url
+    id>> view-post-url ;
+
+\ post "BLOG_POSTS" {
+    { "title" "TITLE" { VARCHAR 256 } +not-null+ }
+} define-persistent
+
+: <post> ( id -- post ) \ post new swap >>id ;
+
+TUPLE: comment < entity parent ;
+
+comment "COMMENTS" {
+    { "parent" "PARENT" INTEGER +not-null+ } ! post id
+} define-persistent
+
+M: comment feed-entry-title
+    author>> "Comment by " prepend ;
+
+M: comment entity-url
+    [ parent>> ] [ id>> ] bi view-comment-url ;
+
+: <comment> ( parent id -- post )
+    comment new
+        swap >>id
+        swap >>parent ;
+
+: post ( id -- post )
+    [ <post> select-tuple ] [ f <comment> select-tuples ] bi
+    >>comments ;
+
+: reverse-chronological-order ( seq -- sorted )
+    [ [ date>> ] compare invert-comparison ] sort ;
+
+: validate-author ( -- )
+    { { "author" [ v-username ] } } validate-params ;
+
+: list-posts ( -- posts )
+    f <post> "author" value >>author
+    select-tuples [ dup id>> f <comment> f count-tuples >>comments ] map
+    reverse-chronological-order ;
+
+: <list-posts-action> ( -- action )
+    <page-action>
+        [ list-posts "posts" set-value ] >>init
+        { blogs "list-posts" } >>template ;
+
+: <list-posts-feed-action> ( -- action )
+    <feed-action>
+        [ "Recent Posts" ] >>title
+        [ list-posts ] >>entries
+        [ list-posts-url ] >>url ;
+
+: <posts-by-action> ( -- action )
+    <page-action>
+
+        "author" >>rest
+
+        [
+            validate-author
+            list-posts "posts" set-value
+        ] >>init
+
+        { blogs "posts-by" } >>template ;
+
+: <posts-by-feed-action> ( -- action )
+    <feed-action>
+        "author" >>rest
+        [ validate-author ] >>init
+        [ "Recent Posts by " "author" value append ] >>title
+        [ list-posts ] >>entries
+        [ "author" value posts-by-url ] >>url ;
+
+: <post-feed-action> ( -- action )
+    <feed-action>
+        "id" >>rest
+        [ validate-integer-id "id" value post "post" set-value ] >>init
+        [ "post" value feed-entry-title ] >>title
+        [ "post" value entity-url ] >>url
+        [ "post" value comments>> ] >>entries ;
+
+: <view-post-action> ( -- action )
+    <page-action>
+
+        "id" >>rest
+
+        [
+            validate-integer-id
+            "id" value post from-object
+
+            "id" value
+            "new-comment" [
+                "parent" set-value
+            ] nest-form
+        ] >>init
+
+        { blogs "view-post" } >>template ;
+
+: validate-post ( -- )
+    {
+        { "title" [ v-one-line ] }
+        { "content" [ v-required ] }
+    } validate-params ;
+
+: <new-post-action> ( -- action )
+    <page-action>
+
+        [
+            validate-post
+            username "author" set-value
+        ] >>validate
+
+        [
+            f <post>
+                dup { "title" "content" } to-object
+                username >>author
+                now >>date
+            [ insert-tuple ] [ entity-url <redirect> ] bi
+        ] >>submit
+
+        { blogs "new-post" } >>template
+
+     <protected>
+        "make a new blog post" >>description ;
+
+: authorize-author ( author -- )
+    username =
+    { can-administer-blogs? } have-capabilities? or
+    [ "edit a blog post" f login-required ] unless ;
+
+: do-post-action ( -- )
+    validate-integer-id
+    "id" value <post> select-tuple from-object ;
+
+: <edit-post-action> ( -- action )
+    <page-action>
+
+        "id" >>rest
+
+        [ do-post-action ] >>init
+
+        [ do-post-action validate-post ] >>validate
+
+        [ "author" value authorize-author ] >>authorize
+
+        [
+            "id" value <post>
+            dup { "title" "author" "date" "content" } to-object
+            [ update-tuple ] [ entity-url <redirect> ] bi
+        ] >>submit
+
+        { blogs "edit-post" } >>template
+
+    <protected>
+        "edit a blog post" >>description ;
+
+: delete-post ( id -- )
+    [ <post> delete-tuples ] [ f <comment> delete-tuples ] bi ;
+
+: <delete-post-action> ( -- action )
+    <action>
+
+        [ do-post-action ] >>validate
+
+        [ "author" value authorize-author ] >>authorize
+
+        [
+            [ "id" value delete-post ] with-transaction
+            "author" value posts-by-url <redirect>
+        ] >>submit
+
+     <protected>
+        "delete a blog post" >>description ;
+
+: <delete-author-action> ( -- action )
+    <action>
+
+        [ validate-author ] >>validate
+
+        [ "author" value authorize-author ] >>authorize
+
+        [
+            [
+                f <post> "author" value >>author select-tuples [ id>> delete-post ] each
+                f f <comment> "author" value >>author delete-tuples
+            ] with-transaction
+            "author" value posts-by-url <redirect>
+        ] >>submit
+
+     <protected>
+        "delete a blog post" >>description ;
+
+: validate-comment ( -- )
+    {
+        { "parent" [ v-integer ] }
+        { "content" [ v-required ] }
+    } validate-params ;
+
+: <new-comment-action> ( -- action )
+    <action>
+
+        [
+            validate-comment
+            username "author" set-value
+        ] >>validate
+
+        [
+            "parent" value f <comment>
+                "content" value >>content
+                username >>author
+                now >>date
+            [ insert-tuple ] [ entity-url <redirect> ] bi
+        ] >>submit
+
+     <protected>
+        "make a comment" >>description ;
+
+: <delete-comment-action> ( -- action )
+    <action>
+
+        [
+            validate-integer-id
+            { { "parent" [ v-integer ] } } validate-params
+        ] >>validate
+
+        [
+            "parent" value <post> select-tuple
+            author>> authorize-author
+        ] >>authorize
+
+        [
+            f "id" value <comment> delete-tuples
+            "parent" value view-post-url <redirect>
+        ] >>submit
+
+        <protected>
+            "delete a comment" >>description ;
+
+: <blogs> ( -- dispatcher )
+    blogs new-dispatcher
+        <list-posts-action> "" add-responder
+        <list-posts-feed-action> "posts.atom" add-responder
+        <posts-by-action> "by" add-responder
+        <posts-by-feed-action> "by.atom" add-responder
+        <view-post-action> "post" add-responder
+        <post-feed-action> "post.atom" add-responder
+        <new-post-action> "new-post" add-responder
+        <edit-post-action> "edit-post" add-responder
+        <delete-post-action> "delete-post" add-responder
+        <new-comment-action> "new-comment" add-responder
+        <delete-comment-action> "delete-comment" add-responder
+    <boilerplate>
+        { blogs "blogs-common" } >>template ;
diff --git a/extra/webapps/blogs/edit-post.xml b/extra/webapps/blogs/edit-post.xml
new file mode 100644
index 0000000000..4522f8606b
--- /dev/null
+++ b/extra/webapps/blogs/edit-post.xml
@@ -0,0 +1,29 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:title>Edit: <t:label t:name="title" /></t:title>
+
+	<div class="post-form">
+		<t:form t:action="$blogs/edit-post" t:for="id">
+
+			<p>Title: <t:field t:name="title" t:size="60" /></p>
+			<p><t:textarea t:name="content" t:rows="30" t:cols="80" /></p>
+			<input type="SUBMIT" value="Done" />
+		</t:form>
+	</div>
+
+	<div class="posting-footer">
+		Post by
+		<t:a t:href="$blogs/by" t:rest="author">
+			<t:label t:name="author" />
+		</t:a>
+		on
+		<t:label t:name="date" />
+		|
+		<t:a t:href="$blogs/post" t:rest="id">View Post</t:a>
+		|
+		<t:button t:action="$blogs/delete-post" t:for="id,author" class="link-button link">Delete Post</t:button>
+	</div>
+
+</t:chloe>
diff --git a/extra/webapps/blogs/list-posts.xml b/extra/webapps/blogs/list-posts.xml
new file mode 100644
index 0000000000..94a5a69775
--- /dev/null
+++ b/extra/webapps/blogs/list-posts.xml
@@ -0,0 +1,35 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:title>Recent Posts</t:title>
+
+	<t:bind-each t:name="posts">
+
+		<h2 class="post-title">
+			<t:a t:href="$blogs/post" t:rest="id">
+				<t:label t:name="title" />
+			</t:a>
+		</h2>
+
+		<p class="posting-body">
+			<t:farkup t:name="content" />
+		</p>
+
+		<div class="posting-footer">
+			Post by
+			<t:a t:href="$blogs/by" t:rest="author">
+				<t:label t:name="author" />
+			</t:a>
+			on
+			<t:label t:name="date" />
+			|
+			<t:a t:href="$blogs/post" t:rest="id">
+				<t:label t:name="comments" />
+				comments.
+			</t:a>
+		</div>
+
+	</t:bind-each>
+
+</t:chloe>
diff --git a/extra/webapps/blogs/new-post.xml b/extra/webapps/blogs/new-post.xml
new file mode 100644
index 0000000000..9cb0250518
--- /dev/null
+++ b/extra/webapps/blogs/new-post.xml
@@ -0,0 +1,17 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:title>New Post</t:title>
+
+	<div class="post-form">
+		<t:form t:action="$blogs/new-post">
+	
+			<p>Title: <t:field t:name="title" t:size="60" /></p>
+			<p><t:textarea t:name="content" t:rows="30" t:cols="80" /></p>
+			<input type="SUBMIT" value="Done" />
+		</t:form>
+	</div>
+
+	<t:validation-messages />
+</t:chloe>
diff --git a/extra/webapps/blogs/posts-by.xml b/extra/webapps/blogs/posts-by.xml
new file mode 100644
index 0000000000..d94b598fc0
--- /dev/null
+++ b/extra/webapps/blogs/posts-by.xml
@@ -0,0 +1,41 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:atom t:href="$blogs/by" t:rest="author">
+		Recent Posts by <t:label t:name="author" />
+	</t:atom>
+
+	<t:title>
+		Recent Posts by <t:label t:name="author" />
+	</t:title>
+
+	<t:bind-each t:name="posts">
+
+		<h2 class="post-title">
+			<t:a t:href="$blogs/post" t:rest="id">
+				<t:label t:name="title" />
+			</t:a>
+		</h2>
+
+		<p class="posting-body">
+			<t:farkup t:name="content" />
+		</p>
+
+		<div class="posting-footer">
+			Post by
+			<t:a t:href="$blogs/by" t:rest="author">
+				<t:label t:name="author" />
+			</t:a>
+			on
+			<t:label t:name="date" />
+			|
+			<t:a t:href="$blogs/post" t:rest="id">
+				<t:label t:name="comments" />
+				comments.
+			</t:a>
+		</div>
+
+	</t:bind-each>
+
+</t:chloe>
diff --git a/extra/webapps/blogs/view-post.xml b/extra/webapps/blogs/view-post.xml
new file mode 100644
index 0000000000..d8d4df10b2
--- /dev/null
+++ b/extra/webapps/blogs/view-post.xml
@@ -0,0 +1,60 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:atom t:href="$blogs/post.atom" t:rest="id">
+		<t:label t:name="author" />: <t:label t:name="title" />
+	</t:atom>
+
+	<t:atom t:href="$blogs/by.atom" t:rest="author">
+		Recent Posts by <t:label t:name="author" />
+	</t:atom>
+
+	<t:title> <t:label t:name="author" />: <t:label t:name="title" /> </t:title>
+
+	<p class="posting-body">
+		<t:farkup t:name="content" />
+	</p>
+
+	<div class="posting-footer">
+		Post by
+		<t:a t:href="$blogs/" t:rest="author">
+			<t:label t:name="author" />
+		</t:a>
+		on
+		<t:label t:name="date" />
+		|
+		<t:a t:href="$blogs/edit-post" t:rest="id">Edit Post</t:a>
+		|
+		<t:button t:action="$blogs/delete-post" t:for="id,author" class="link-button link">Delete Post</t:button>
+	</div>
+
+	<t:bind-each t:name="comments">
+		<hr/>
+
+		<p class="comment-header">
+			<a name="@id">Comment by <t:label t:name="author" /> on <t:label t:name="date" />:</a>
+		</p>
+
+		<p class="posting-body">
+			<t:farkup t:name="content" t:no-follow="true" t:disable-images="true" />
+		</p>
+		
+		<t:button t:action="$blogs/delete-comment" t:for="id,parent" class="link-button link">Delete Comment</t:button>
+
+	</t:bind-each>
+
+	<t:bind t:name="new-comment">
+
+		<h2>New Comment</h2>
+
+		<div class="post-form">
+			<t:form t:action="$blogs/new-comment" t:for="parent">
+				<p><t:textarea t:name="content" t:rows="20" t:cols="60" /></p>
+				<p><input type="SUBMIT" value="Done" /></p>
+			</t:form>
+		</div>
+
+	</t:bind>
+
+</t:chloe>
diff --git a/extra/webapps/counter/counter.factor b/extra/webapps/counter/counter.factor
index da646fb76f..a14d6d9823 100644
--- a/extra/webapps/counter/counter.factor
+++ b/extra/webapps/counter/counter.factor
@@ -1,6 +1,6 @@
 USING: math kernel accessors http.server http.server.dispatchers
-furnace furnace.actions furnace.sessions
-html.components html.templates.chloe
+furnace furnace.actions furnace.sessions furnace.redirection
+html.components html.forms html.templates.chloe
 fry urls ;
 IN: webapps.counter
 
diff --git a/extra/webapps/factor-website/factor-website.factor b/extra/webapps/factor-website/factor-website.factor
deleted file mode 100644
index 853af6e845..0000000000
--- a/extra/webapps/factor-website/factor-website.factor
+++ /dev/null
@@ -1,71 +0,0 @@
-! Copyright (c) 2008 Slava Pestov
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel sequences assocs io.files io.sockets
-io.server
-namespaces db db.sqlite smtp
-http.server
-http.server.dispatchers
-furnace.db
-furnace.flows
-furnace.sessions
-furnace.auth.login
-furnace.auth.providers.db
-furnace.boilerplate
-webapps.pastebin
-webapps.planet
-webapps.todo
-webapps.wiki
-webapps.user-admin ;
-IN: webapps.factor-website
-
-: test-db "resource:test.db" sqlite-db ;
-
-: init-factor-db ( -- )
-    test-db [
-        init-users-table
-        init-sessions-table
-
-        init-pastes-table
-        init-annotations-table
-
-        init-blog-table
-        init-postings-table
-
-        init-todo-table
-
-        init-articles-table
-        init-revisions-table
-    ] with-db ;
-
-TUPLE: factor-website < dispatcher ;
-
-: <factor-website> ( -- responder )
-    factor-website new-dispatcher 
-        <todo-list> "todo" add-responder
-        <pastebin> "pastebin" add-responder
-        <planet-factor> "planet" add-responder
-        <wiki> "wiki" add-responder
-        <user-admin> "user-admin" add-responder
-    <login>
-        users-in-db >>users
-        allow-registration
-        allow-password-recovery
-        allow-edit-profile
-    <boilerplate>
-        { factor-website "page" } >>template
-    <flows>
-    <sessions>
-    test-db <db-persistence> ;
-
-: init-factor-website ( -- )
-    "factorcode.org" 25 <inet> smtp-server set-global
-    "todo@factorcode.org" lost-password-from set-global
-
-    init-factor-db
-
-    <factor-website> main-responder set-global ;
-
-: start-factor-website ( -- )
-    test-db start-expiring-sessions
-    test-db start-update-task
-    8812 httpd ;
diff --git a/extra/webapps/pastebin/paste.xml b/extra/webapps/pastebin/paste.xml
index 9f35d83fd8..1c138fc8c0 100644
--- a/extra/webapps/pastebin/paste.xml
+++ b/extra/webapps/pastebin/paste.xml
@@ -2,7 +2,9 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
-	<t:atom t:title="This paste" t:href="$pastebin/paste.atom" t:query="id" />
+	<t:atom t:href="$pastebin/paste.atom" t:query="id">
+		Paste: <t:label t:name="summary" />
+	</t:atom>
 
 	<t:title>Paste: <t:label t:name="summary" /></t:title>
 
@@ -28,7 +30,7 @@
 
 		<pre class="description"><t:code t:name="contents" t:mode="mode"/></pre>
 
-		<t:button t:action="$pastebin/delete-annotation" t:for="aid" class="link-button link">Delete Annotation</t:button>
+		<t:button t:action="$pastebin/delete-annotation" t:for="id" class="link-button link">Delete Annotation</t:button>
 
 	</t:bind-each>
 
@@ -36,13 +38,13 @@
 
 		<h2>New Annotation</h2>
 
-		<t:form t:action="$pastebin/new-annotation" t:for="id">
+		<t:form t:action="$pastebin/new-annotation" t:for="parent">
 
 			<table>
 				<tr><th class="field-label">Summary: </th><td><t:field t:name="summary" /></td></tr>
 				<tr><th class="field-label">Author: </th><td><t:field t:name="author" /></td></tr>
 				<tr><th class="field-label">Mode: </th><td><t:choice t:name="mode" t:choices="modes" /></td></tr>
-				<tr><th class="field-label big-field-label">Body:</th><td><t:textarea t:name="contents" t:rows="20" t:cols="60" /></td></tr>
+				<tr><th class="field-label big-field-label">Body: </th><td><t:textarea t:name="contents" t:rows="20" t:cols="60" /></td></tr>
 				<tr><th class="field-label">Captcha: </th><td><t:field t:name="captcha" /></td></tr>
 				<tr>
 				<td></td>
@@ -51,6 +53,7 @@
 			</table>
 
 			<input type="SUBMIT" value="Done" />
+
 		</t:form>
 
 	</t:bind>
diff --git a/extra/webapps/pastebin/pastebin-common.xml b/extra/webapps/pastebin/pastebin-common.xml
index 5ef44ad6ce..b95f3f7b64 100644
--- a/extra/webapps/pastebin/pastebin-common.xml
+++ b/extra/webapps/pastebin/pastebin-common.xml
@@ -2,7 +2,7 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
-	<t:atom t:title="Pastebin" t:href="$pastebin/list.atom" />
+	<t:atom t:href="$pastebin/list.atom">Pastebin</t:atom>
 
 	<t:style t:include="resource:extra/webapps/pastebin/pastebin.css" />
 
@@ -11,13 +11,13 @@
 		  <t:a t:href="$pastebin/list">Pastes</t:a>
 		| <t:a t:href="$pastebin/new-paste">New Paste</t:a>
 
-		<t:if t:code="furnace.sessions:uid">
+		<t:if t:code="furnace.auth:logged-in?">
 
-			<t:if t:code="furnace.auth.login:allow-edit-profile?">
-				| <t:a t:href="$login/edit-profile" t:flow="begin">Edit Profile</t:a>
+			<t:if t:code="furnace.auth.features.edit-profile:allow-edit-profile?">
+				| <t:a t:href="$realm/edit-profile" t:aside="begin">Edit Profile</t:a>
 			</t:if>
 
-			| <t:button t:action="$login/logout" t:flow="begin" class="link-button link">Logout</t:button>
+			| <t:button t:action="$login-realm/logout" t:aside="begin" class="link-button link">Logout</t:button>
 
 		</t:if>
 
diff --git a/extra/webapps/pastebin/pastebin.factor b/extra/webapps/pastebin/pastebin.factor
index 69650b4d73..3aeb21420f 100644
--- a/extra/webapps/pastebin/pastebin.factor
+++ b/extra/webapps/pastebin/pastebin.factor
@@ -2,8 +2,9 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: namespaces assocs sorting sequences kernel accessors
 hashtables sequences.lib db.types db.tuples db combinators
-calendar calendar.format math.parser rss urls xml.writer
+calendar calendar.format math.parser syndication urls xml.writer
 xmode.catalog validators
+html.forms
 html.components
 html.templates.chloe
 http.server
@@ -11,14 +12,19 @@ http.server.dispatchers
 http.server.redirection
 furnace
 furnace.actions
+furnace.redirection
 furnace.auth
 furnace.auth.login
 furnace.boilerplate
-furnace.rss ;
+furnace.syndication ;
 IN: webapps.pastebin
 
 TUPLE: pastebin < dispatcher ;
 
+SYMBOL: can-delete-pastes?
+
+can-delete-pastes? define-capability
+
 ! ! !
 ! DOMAIN MODEL
 ! ! !
@@ -35,6 +41,14 @@ entity f
     { "contents" "CONTENTS" TEXT +not-null+ }
 } define-persistent
 
+GENERIC: entity-url ( entity -- url )
+
+M: entity feed-entry-title summary>> ;
+
+M: entity feed-entry-date date>> ;
+
+M: entity feed-entry-url entity-url ;
+
 TUPLE: paste < entity annotations ;
 
 \ paste "PASTES" { } define-persistent
@@ -58,39 +72,31 @@ annotation "ANNOTATIONS"
         swap >>id
         swap >>parent ;
 
-: fetch-annotations ( paste -- paste )
-    dup annotations>> [
-        dup id>> f <annotation> select-tuples >>annotations
-    ] unless ;
-
 : paste ( id -- paste )
-    <paste> select-tuple fetch-annotations ;
+    [ <paste> select-tuple ]
+    [ f <annotation> select-tuples ]
+    bi >>annotations ;
 
 ! ! !
 ! LINKS, ETC
 ! ! !
 
-: pastebin-link ( -- url )
+: pastebin-url ( -- url )
     URL" $pastebin/list" ;
 
-GENERIC: entity-link ( entity -- url )
+: paste-url ( id -- url )
+    "$pastebin/paste" >url swap "id" set-query-param ;
 
-: paste-link ( id -- url )
-    <url>
-        "$pastebin/paste" >>path
-        swap "id" set-query-param ;
+M: paste entity-url
+    id>> paste-url ;
 
-M: paste entity-link
-    id>> paste-link ;
-
-: annotation-link ( parent id -- url )
-    <url>
-        "$pastebin/paste" >>path
+: annotation-url ( parent id -- url )
+    "$pastebin/paste" >url
         swap number>string >>anchor
         swap "id" set-query-param ;
 
-M: annotation entity-link
-    [ parent>> ] [ id>> ] bi annotation-link ;
+M: annotation entity-url
+    [ parent>> ] [ id>> ] bi annotation-url ;
 
 ! ! !
 ! PASTE LIST
@@ -101,24 +107,11 @@ M: annotation entity-link
         [ pastes "pastes" set-value ] >>init
         { pastebin "pastebin" } >>template ;
 
-: pastebin-feed-entries ( seq -- entries )
-    <reversed> 20 short head [
-        entry new
-            swap
-            [ summary>> >>title ]
-            [ date>> >>pub-date ]
-            [ entity-link adjust-url relative-to-request >>link ]
-            tri
-    ] map ;
-
-: pastebin-feed ( -- feed )
-    feed new
-        "Factor Pastebin" >>title
-        pastebin-link >>link
-        pastes pastebin-feed-entries >>entries ;
-
 : <pastebin-feed-action> ( -- action )
-    <feed-action> [ pastebin-feed ] >>feed ;
+    <feed-action>
+        [ pastebin-url ] >>url
+        [ "Factor Pastebin" ] >>title
+        [ pastes <reversed> ] >>entries ;
 
 ! ! !
 ! PASTES
@@ -132,29 +125,20 @@ M: annotation entity-link
 
             "id" value
             "new-annotation" [
-                "id" set-value
+                "parent" set-value
                 mode-names "modes" set-value
                 "factor" "mode" set-value
-            ] nest-values
+            ] nest-form
         ] >>init
 
         { pastebin "paste" } >>template ;
 
-: paste-feed-entries ( paste -- entries )
-    fetch-annotations annotations>> pastebin-feed-entries ;
-
-: paste-feed ( paste -- feed )
-    feed new
-        swap
-        [ "Paste " swap id>> number>string append >>title ]
-        [ entity-link adjust-url relative-to-request >>link ]
-        [ paste-feed-entries >>entries ]
-        tri ;
-
 : <paste-feed-action> ( -- action )
     <feed-action>
         [ validate-integer-id ] >>init
-        [ "id" value paste paste-feed ] >>feed ;
+        [ "id" value paste-url ] >>url
+        [ "Paste " "id" value number>string append ] >>title
+        [ "id" value f <annotation> select-tuples ] >>entries ;
 
 : validate-entity ( -- )
     {
@@ -167,7 +151,7 @@ M: annotation entity-link
 
 : deposit-entity-slots ( tuple -- )
     now >>date
-    { "summary" "author" "mode" "contents" } deposit-slots ;
+    { "summary" "author" "mode" "contents" } to-object ;
 
 : <new-paste-action> ( -- action )
     <page-action>
@@ -178,27 +162,35 @@ M: annotation entity-link
 
         { pastebin "new-paste" } >>template
 
-        [ mode-names "modes" set-value ] >>validate
+        [
+            mode-names "modes" set-value
+            validate-entity
+        ] >>validate
 
         [
-            validate-entity
-
             f <paste>
             [ deposit-entity-slots ]
             [ insert-tuple ]
-            [ id>> paste-link <redirect> ]
+            [ id>> paste-url <redirect> ]
             tri
         ] >>submit ;
 
 : <delete-paste-action> ( -- action )
     <action>
+
         [ validate-integer-id ] >>validate
 
         [
-            "id" value <paste> delete-tuples
-            "id" value f <annotation> delete-tuples
+            [
+                "id" value <paste> delete-tuples
+                "id" value f <annotation> delete-tuples
+            ] with-transaction
             URL" $pastebin/list" <redirect>
-        ] >>submit ;
+        ] >>submit
+
+        <protected>
+            "delete pastes" >>description
+            { can-delete-pastes? } >>capabilities ;
 
 ! ! !
 ! ANNOTATIONS
@@ -207,37 +199,34 @@ M: annotation entity-link
 : <new-annotation-action> ( -- action )
     <action>
         [
-            { { "id" [ v-integer ] } } validate-params
-            "id" value paste-link <redirect>
-        ] >>display
-
-        [
-            { { "id" [ v-integer ] } } validate-params
+            mode-names "modes" set-value
+            { { "parent" [ v-integer ] } } validate-params
             validate-entity
         ] >>validate
 
         [
-            "id" value f <annotation>
+            "parent" value f <annotation>
             [ deposit-entity-slots ]
             [ insert-tuple ]
-            [ entity-link <redirect> ]
+            [ entity-url <redirect> ]
             tri
         ] >>submit ;
 
 : <delete-annotation-action> ( -- action )
     <action>
+
         [ { { "id" [ v-number ] } } validate-params ] >>validate
 
         [
             f "id" value <annotation> select-tuple
             [ delete-tuples ]
-            [ parent>> paste-link <redirect> ]
+            [ parent>> paste-url <redirect> ]
             bi
-        ] >>submit ;
+        ] >>submit
 
-SYMBOL: can-delete-pastes?
-
-can-delete-pastes? define-capability
+    <protected>
+        "delete annotations" >>description
+        { can-delete-pastes? } >>capabilities ;
 
 : <pastebin> ( -- responder )
     pastebin new-dispatcher
@@ -246,12 +235,8 @@ can-delete-pastes? define-capability
         <paste-action> "paste" add-responder
         <paste-feed-action> "paste.atom" add-responder
         <new-paste-action> "new-paste" add-responder
-        <delete-paste-action> { can-delete-pastes? } <protected> "delete-paste" add-responder
+        <delete-paste-action> "delete-paste" add-responder
         <new-annotation-action> "new-annotation" add-responder
-        <delete-annotation-action> { can-delete-pastes? } <protected> "delete-annotation" add-responder
+        <delete-annotation-action> "delete-annotation" add-responder
     <boilerplate>
         { pastebin "pastebin-common" } >>template ;
-
-: init-pastes-table \ paste ensure-table ;
-
-: init-annotations-table annotation ensure-table ;
diff --git a/extra/webapps/planet/admin.xml b/extra/webapps/planet/admin.xml
index 26a3e6f206..531332eada 100644
--- a/extra/webapps/planet/admin.xml
+++ b/extra/webapps/planet/admin.xml
@@ -2,21 +2,21 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
-	<t:title>Planet Factor Administration</t:title>
+	<t:title>Concatenative Planet: Administration</t:title>
 
 	<ul>
 		<t:bind-each t:name="blogroll">
 			<li>
-				<t:a t:href="$planet-factor/admin/edit-blog" t:query="id">
+				<t:a t:href="$planet/admin/edit-blog" t:query="id">
 					<t:label t:name="name" />
 				</t:a>
 			</li>
 		</t:bind-each>
 	</ul>
 
-	<p>
-		<t:a t:href="$planet-factor/admin/new-blog">Add Blog</t:a>
-		| <t:button t:action="$planet-factor/admin/update" class="link-button link">Update</t:button>
-	</p>
+	<div>
+		<t:a t:href="$planet/admin/new-blog">Add Blog</t:a>
+		| <t:button t:action="$planet/admin/update" class="link-button link">Update</t:button>
+	</div>
 
 </t:chloe>
diff --git a/extra/webapps/planet/edit-blog.xml b/extra/webapps/planet/edit-blog.xml
index fd9c659f59..d1c7013c68 100644
--- a/extra/webapps/planet/edit-blog.xml
+++ b/extra/webapps/planet/edit-blog.xml
@@ -4,7 +4,7 @@
 
 	<t:title>Edit Blog</t:title>
 
-	<t:form t:action="$planet-factor/admin/edit-blog" t:for="id">
+	<t:form t:action="$planet/admin/edit-blog" t:for="id">
 
 		<table>
 
@@ -29,6 +29,6 @@
 
 	</t:form>
 
-	<t:button t:action="$planet-factor/admin/delete-blog" t:for="id" class="link-button link">Delete</t:button>
+	<t:button t:action="$planet/admin/delete-blog" t:for="id" class="link-button link">Delete</t:button>
 
 </t:chloe>
diff --git a/extra/webapps/planet/entry-summary.xml b/extra/webapps/planet/entry-summary.xml
deleted file mode 100644
index 70274d67d9..0000000000
--- a/extra/webapps/planet/entry-summary.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version='1.0' ?>
-
-<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
-
-	<p class="news">
-		<strong><t:view t:component="title" /></strong> <br/>
-		<t:a value="link" class="more">Read More...</t:a>
-	</p>
-
-</t:chloe>
diff --git a/extra/webapps/planet/entry.xml b/extra/webapps/planet/entry.xml
deleted file mode 100644
index 01fda67316..0000000000
--- a/extra/webapps/planet/entry.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version='1.0' ?>
-
-<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
-
-	<h2 class="posting-title">
-		<t:a t:value="link"><t:view t:component="title" /></t:a>
-	</h2>
-
-	<p class="posting-body">
-		<t:view t:component="description" />
-	</p>
-
-	<p class="posting-date">
-		<t:a t:value="link"><t:view t:component="pub-date" /></t:a>
-	</p>
-
-</t:chloe>
diff --git a/extra/webapps/planet/mini-planet.xml b/extra/webapps/planet/mini-planet.xml
deleted file mode 100644
index 8de7216b0e..0000000000
--- a/extra/webapps/planet/mini-planet.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version='1.0' ?>
-
-<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
-
-	<t:bind-each t:name="postings">
-
-		<p class="news">
-			<strong><t:view t:component="title" /></strong> <br/>
-			<t:a value="link" class="more">Read More...</t:a>
-		</p>
-
-	</t:bind-each>
-
-</t:chloe>
diff --git a/extra/webapps/planet/new-blog.xml b/extra/webapps/planet/new-blog.xml
index 4a9638da03..6f75addda5 100644
--- a/extra/webapps/planet/new-blog.xml
+++ b/extra/webapps/planet/new-blog.xml
@@ -4,7 +4,7 @@
 
 	<t:title>Edit Blog</t:title>
 
-	<t:form t:action="$planet-factor/admin/new-blog">
+	<t:form t:action="$planet/admin/new-blog">
 
 		<table>
 
diff --git a/extra/webapps/planet/planet-common.xml b/extra/webapps/planet/planet-common.xml
index e92f88c2c2..f4e390056a 100644
--- a/extra/webapps/planet/planet-common.xml
+++ b/extra/webapps/planet/planet-common.xml
@@ -5,16 +5,16 @@
 	<t:style t:include="resource:extra/webapps/planet/planet.css" />
 
 	<div class="navbar">
-		  <t:a t:href="$planet-factor/list">Front Page</t:a>
-		| <t:a t:href="$planet-factor/feed.xml">Atom Feed</t:a>
-		| <t:a t:href="$planet-factor/admin">Admin</t:a>
+		  <t:a t:href="$planet/list">Front Page</t:a>
+		| <t:a t:href="$planet/feed.xml">Atom Feed</t:a>
+		| <t:a t:href="$planet/admin">Admin</t:a>
 
-		<t:if t:code="furnace.sessions:uid">
-			<t:if t:code="furnace.auth.login:allow-edit-profile?">
-				| <t:a t:href="$login/edit-profile" t:flow="begin">Edit Profile</t:a>
+		<t:if t:code="furnace.auth:logged-in?">
+			<t:if t:code="furnace.auth.features.edit-profile:allow-edit-profile?">
+				| <t:a t:href="$realm/edit-profile" t:aside="begin">Edit Profile</t:a>
 			</t:if>
 	
-			| <t:button t:action="$login/logout" t:flow="begin" class="link-button link">Logout</t:button>
+			| <t:button t:action="$login-realm/logout" t:aside="begin" class="link-button link">Logout</t:button>
 		</t:if>
 	</div>
 
diff --git a/extra/webapps/planet/planet.factor b/extra/webapps/planet/planet.factor
index c5fa5e25d4..10e706598e 100755
--- a/extra/webapps/planet/planet.factor
+++ b/extra/webapps/planet/planet.factor
@@ -3,22 +3,27 @@
 USING: kernel accessors sequences sorting math math.order
 calendar alarms logging concurrency.combinators namespaces
 sequences.lib db.types db.tuples db fry locals hashtables
+syndication urls xml.writer validators
+html.forms
 html.components
-rss urls xml.writer
-validators
 http.server
 http.server.dispatchers
 furnace
 furnace.actions
+furnace.redirection
 furnace.boilerplate
 furnace.auth.login
 furnace.auth
-furnace.rss ;
+furnace.syndication ;
 IN: webapps.planet
 
-TUPLE: planet-factor < dispatcher ;
+TUPLE: planet < dispatcher ;
 
-TUPLE: planet-factor-admin < dispatcher ;
+SYMBOL: can-administer-planet?
+
+can-administer-planet? define-capability
+
+TUPLE: planet-admin < dispatcher ;
 
 TUPLE: blog id name www-url feed-url ;
 
@@ -30,26 +35,21 @@ blog "BLOGS"
 {
     { "id" "ID" INTEGER +db-assigned-id+ }
     { "name" "NAME" { VARCHAR 256 } +not-null+ }
-    { "www-url" "WWWURL" { VARCHAR 256 } +not-null+ }
-    { "feed-url" "FEEDURL" { VARCHAR 256 } +not-null+ }
+    { "www-url" "WWWURL" URL +not-null+ }
+    { "feed-url" "FEEDURL" URL +not-null+ }
 } define-persistent
 
-! TUPLE: posting < entry id ;
-TUPLE: posting id title link description pub-date ;
+TUPLE: posting < entry id ;
 
 posting "POSTINGS"
 {
     { "id" "ID" INTEGER +db-assigned-id+ }
     { "title" "TITLE" { VARCHAR 256 } +not-null+ }
-    { "link" "LINK" { VARCHAR 256 } +not-null+ }
+    { "url" "LINK" URL +not-null+ }
     { "description" "DESCRIPTION" TEXT +not-null+ }
-    { "pub-date" "DATE" TIMESTAMP +not-null+ }
+    { "date" "DATE" TIMESTAMP +not-null+ }
 } define-persistent
 
-: init-blog-table blog ensure-table ;
-
-: init-postings-table posting ensure-table ;
-
 : <blog> ( id -- todo )
     blog new
         swap >>id ;
@@ -60,12 +60,12 @@ posting "POSTINGS"
 
 : postings ( -- seq )
     posting new select-tuples
-    [ [ pub-date>> ] compare invert-comparison ] sort ;
+    [ [ date>> ] compare invert-comparison ] sort ;
 
 : <edit-blogroll-action> ( -- action )
     <page-action>
         [ blogroll "blogroll" set-value ] >>init
-        { planet-factor "admin" } >>template ;
+        { planet "admin" } >>template ;
 
 : <planet-action> ( -- action )
     <page-action>
@@ -74,23 +74,20 @@ posting "POSTINGS"
             postings "postings" set-value
         ] >>init
 
-        { planet-factor "planet" } >>template ;
-
-: planet-feed ( -- feed )
-    feed new
-        "Planet Factor" >>title
-        "http://planet.factorcode.org" >>link
-        postings >>entries ;
+        { planet "planet" } >>template ;
 
 : <planet-feed-action> ( -- action )
-    <feed-action> [ planet-feed ] >>feed ;
+    <feed-action>
+        [ "Planet Factor" ] >>title
+        [ URL" $planet" ] >>url
+        [ postings ] >>entries ;
 
 :: <posting> ( entry name -- entry' )
     posting new
         name ": " entry title>> 3append >>title
-        entry link>> >>link
+        entry url>> >>url
         entry description>> >>description
-        entry pub-date>> >>pub-date ;
+        entry date>> >>date ;
 
 : fetch-feed ( url -- feed )
     download-feed entries>> ;
@@ -102,7 +99,7 @@ posting "POSTINGS"
     [ '[ , <posting> ] map ] 2map concat ;
 
 : sort-entries ( entries -- entries' )
-    [ [ pub-date>> ] compare invert-comparison ] sort ;
+    [ [ date>> ] compare invert-comparison ] sort ;
 
 : update-cached-postings ( -- )
     blogroll fetch-blogroll sort-entries 8 short head [
@@ -114,7 +111,7 @@ posting "POSTINGS"
     <action>
         [
             update-cached-postings
-            URL" $planet-factor/admin" <redirect>
+            URL" $planet/admin" <redirect>
         ] >>submit ;
 
 : <delete-blog-action> ( -- action )
@@ -123,7 +120,7 @@ posting "POSTINGS"
 
         [
             "id" value <blog> delete-tuples
-            URL" $planet-factor/admin" <redirect>
+            URL" $planet/admin" <redirect>
         ] >>submit ;
 
 : validate-blog ( -- )
@@ -134,11 +131,12 @@ posting "POSTINGS"
     } validate-params ;
 
 : deposit-blog-slots ( blog -- )
-    { "name" "www-url" "feed-url" } deposit-slots ;
+    { "name" "www-url" "feed-url" } to-object ;
 
 : <new-blog-action> ( -- action )
     <page-action>
-        { planet-factor "new-blog" } >>template
+
+        { planet "new-blog" } >>template
 
         [ validate-blog ] >>validate
 
@@ -148,21 +146,22 @@ posting "POSTINGS"
             [ insert-tuple ]
             [
                 <url>
-                    "$planet-factor/admin/edit-blog" >>path
+                    "$planet/admin/edit-blog" >>path
                     swap id>> "id" set-query-param
                 <redirect>
             ]
             tri
         ] >>submit ;
-    
+
 : <edit-blog-action> ( -- action )
     <page-action>
+
         [
             validate-integer-id
             "id" value <blog> select-tuple from-object
         ] >>init
 
-        { planet-factor "edit-blog" } >>template
+        { planet "edit-blog" } >>template
 
         [
             validate-integer-id
@@ -175,32 +174,31 @@ posting "POSTINGS"
             [ update-tuple ]
             [
                 <url>
-                    "$planet-factor/admin" >>path
+                    "$planet/admin" >>path
                     swap id>> "id" set-query-param
                 <redirect>
             ]
             tri
         ] >>submit ;
 
-: <planet-factor-admin> ( -- responder )
-    planet-factor-admin new-dispatcher
+: <planet-admin> ( -- responder )
+    planet-admin new-dispatcher
         <edit-blogroll-action> "blogroll" add-main-responder
         <update-action> "update" add-responder
         <new-blog-action> "new-blog" add-responder
         <edit-blog-action> "edit-blog" add-responder
-        <delete-blog-action> "delete-blog" add-responder ;
+        <delete-blog-action> "delete-blog" add-responder
+    <protected>
+        "administer Planet Factor" >>description
+        { can-administer-planet? } >>capabilities ;
 
-SYMBOL: can-administer-planet-factor?
-
-can-administer-planet-factor? define-capability
-
-: <planet-factor> ( -- responder )
-    planet-factor new-dispatcher
+: <planet> ( -- responder )
+    planet new-dispatcher
         <planet-action> "list" add-main-responder
-        <feed-action> "feed.xml" add-responder
-        <planet-factor-admin> { can-administer-planet-factor? } <protected> "admin" add-responder
+        <planet-feed-action> "feed.xml" add-responder
+        <planet-admin> "admin" add-responder
     <boilerplate>
-        { planet-factor "planet-common" } >>template ;
+        { planet "planet-common" } >>template ;
 
 : start-update-task ( db params -- )
     '[ , , [ update-cached-postings ] with-db ] 10 minutes every drop ;
diff --git a/extra/webapps/planet/planet.xml b/extra/webapps/planet/planet.xml
index 213c314d7a..340e6c4bee 100644
--- a/extra/webapps/planet/planet.xml
+++ b/extra/webapps/planet/planet.xml
@@ -2,7 +2,7 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
-	<t:title>Planet Factor</t:title>
+	<t:title>Concatenative Planet</t:title>
 
 	<table width="100%" cellpadding="10">
 		<tr>
@@ -11,7 +11,7 @@
 				<t:bind-each t:name="postings">
 
 					<h2 class="posting-title">
-						<t:a t:value="link"><t:label t:name="title" /></t:a>
+						<t:a t:value="url"><t:label t:name="title" /></t:a>
 					</h2>
 
 					<p class="posting-body">
@@ -19,7 +19,7 @@
 					</p>
 
 					<p class="posting-date">
-						<t:a t:value="link"><t:label t:name="pub-date" /></t:a>
+						<t:a t:value="url"><t:label t:name="date" /></t:a>
 					</p>
 
 				</t:bind-each>
diff --git a/extra/webapps/todo/todo.factor b/extra/webapps/todo/todo.factor
index 3600e2f874..e726c4ed36 100755
--- a/extra/webapps/todo/todo.factor
+++ b/extra/webapps/todo/todo.factor
@@ -2,15 +2,16 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors kernel sequences namespaces
 db db.types db.tuples validators hashtables urls
+html.forms
 html.components
 html.templates.chloe
 http.server
 http.server.dispatchers
 furnace
-furnace.sessions
 furnace.boilerplate
 furnace.auth
 furnace.actions
+furnace.redirection
 furnace.db
 furnace.auth.login ;
 IN: webapps.todo
@@ -28,12 +29,10 @@ todo "TODO"
     { "description" "DESCRIPTION" { VARCHAR 256 } }
 } define-persistent
 
-: init-todo-table todo ensure-table ;
-
 : <todo> ( id -- todo )
     todo new
         swap >>id
-        uid >>uid ;
+        username >>uid ;
 
 : <view-action> ( -- action )
     <page-action>
@@ -51,6 +50,9 @@ todo "TODO"
         { "description" [ v-required ] }
     } validate-params ;
 
+: view-todo-url ( id -- url )
+    <url> "$todo-list/view" >>path swap "id" set-query-param ;
+
 : <new-action> ( -- action )
     <page-action>
         [ 0 "priority" set-value ] >>init
@@ -61,15 +63,8 @@ todo "TODO"
 
         [
             f <todo>
-                dup { "summary" "priority" "description" } deposit-slots
-            [ insert-tuple ]
-            [
-                <url>
-                    "$todo-list/view" >>path
-                    swap id>> "id" set-query-param
-                <redirect>
-            ]
-            bi
+                dup { "summary" "priority" "description" } to-object
+            [ insert-tuple ] [ id>> view-todo-url <redirect> ] bi
         ] >>submit ;
 
 : <edit-action> ( -- action )
@@ -88,24 +83,20 @@ todo "TODO"
 
         [
             f <todo>
-                dup { "id" "summary" "priority" "description" } deposit-slots
-            [ update-tuple ]
-            [
-                <url>
-                    "$todo-list/view" >>path
-                    swap id>> "id" set-query-param
-                <redirect>
-            ]
-            bi
+                dup { "id" "summary" "priority" "description" } to-object
+            [ update-tuple ] [ id>> view-todo-url <redirect> ] bi
         ] >>submit ;
 
+: todo-list-url ( -- url )
+    URL" $todo-list/list" ;
+
 : <delete-action> ( -- action )
     <action>
         [ validate-integer-id ] >>validate
 
         [
             "id" get <todo> delete-tuples
-            URL" $todo-list/list" <redirect>
+            todo-list-url <redirect>
         ] >>submit ;
 
 : <list-action> ( -- action )
@@ -122,4 +113,5 @@ todo "TODO"
         <delete-action> "delete" add-responder
     <boilerplate>
         { todo-list "todo" } >>template
-    f <protected> ;
+    <protected>
+        "view your todo list" >>description ;
diff --git a/extra/webapps/todo/todo.xml b/extra/webapps/todo/todo.xml
index 3dd0b9a7d1..f7500cdad2 100644
--- a/extra/webapps/todo/todo.xml
+++ b/extra/webapps/todo/todo.xml
@@ -8,11 +8,11 @@
 		  <t:a t:href="$todo-list/list">List Items</t:a>
 		| <t:a t:href="$todo-list/new">Add Item</t:a>
 
-		<t:if t:code="furnace.auth.login:allow-edit-profile?">
-			| <t:a t:href="$login/edit-profile" t:flow="begin">Edit Profile</t:a>
+		<t:if t:code="furnace.auth.features.edit-profile:allow-edit-profile?">
+			| <t:a t:href="$realm/edit-profile" t:aside="begin">Edit Profile</t:a>
 		</t:if>
 
-		| <t:button t:action="$login/logout" t:flow="begin" class="link-button link">Logout</t:button>
+		| <t:button t:action="$login-realm/logout" t:aside="begin" class="link-button link">Logout</t:button>
 	</div>
 
 	<h1><t:write-title /></h1>
diff --git a/extra/webapps/user-admin/edit-user.xml b/extra/webapps/user-admin/edit-user.xml
index 0c55f8ca76..252667462b 100644
--- a/extra/webapps/user-admin/edit-user.xml
+++ b/extra/webapps/user-admin/edit-user.xml
@@ -50,11 +50,11 @@
 	</table>
 	
 	<p>
-		<button type="submit" class="link-button link">Update</button>
+		<button type="submit" >Update</button>
 		<t:validation-messages />
 	</p>
 
 	</t:form>
 
-	<t:button t:action="$user-admin/delete" t:for="username" class="link-button link">Delete</t:button>
+	<t:button t:action="$user-admin/delete" t:for="username">Delete</t:button>
 </t:chloe>
diff --git a/extra/webapps/user-admin/user-admin.factor b/extra/webapps/user-admin/user-admin.factor
index b8687274f0..2137abbc2d 100644
--- a/extra/webapps/user-admin/user-admin.factor
+++ b/extra/webapps/user-admin/user-admin.factor
@@ -2,6 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences accessors namespaces combinators words
 assocs db.tuples arrays splitting strings validators urls
+html.forms
 html.elements
 html.components
 furnace
@@ -10,26 +11,15 @@ furnace.auth.providers
 furnace.auth.providers.db
 furnace.auth.login
 furnace.auth
-furnace.sessions
 furnace.actions
+furnace.redirection
+furnace.utilities
 http.server
 http.server.dispatchers ;
 IN: webapps.user-admin
 
 TUPLE: user-admin < dispatcher ;
 
-: word>string ( word -- string )
-    [ word-vocabulary ] [ drop ":" ] [ word-name ] tri 3append ;
-
-: words>strings ( seq -- seq' )
-    [ word>string ] map ;
-
-: string>word ( string -- word )
-    ":" split1 swap lookup ;
-
-: strings>words ( seq -- seq' )
-    [ string>word ] map ;
-
 : <user-list-action> ( -- action )
     <page-action>
         [ f <user> select-tuples "users" set-value ] >>init
@@ -38,10 +28,19 @@ TUPLE: user-admin < dispatcher ;
 : init-capabilities ( -- )
     capabilities get words>strings "capabilities" set-value ;
 
-: selected-capabilities ( -- seq )
+: validate-capabilities ( -- )
     "capabilities" value
-    [ param empty? not ] filter
-    [ string>word ] map ;
+    [ [ param empty? not ] keep set-value ] each ;
+
+: selected-capabilities ( -- seq )
+    "capabilities" value [ value ] filter [ string>word ] map ;
+
+: validate-user ( -- )
+    {
+        { "username" [ v-username ] }
+        { "realname" [ [ v-one-line ] v-optional ] }
+        { "email" [ [ v-email ] v-optional ] }
+    } validate-params ;
 
 : <new-user-action> ( -- action )
     <page-action>
@@ -54,14 +53,13 @@ TUPLE: user-admin < dispatcher ;
 
         [
             init-capabilities
+            validate-capabilities
+
+            validate-user
 
             {
-                { "username" [ v-username ] }
-                { "realname" [ v-one-line ] }
                 { "new-password" [ v-password ] }
                 { "verify-password" [ v-password ] }
-                { "email" [ [ v-email ] v-optional ] }
-                { "capabilities" [ ] }
             } validate-params
 
             same-password-twice
@@ -86,29 +84,34 @@ TUPLE: user-admin < dispatcher ;
 : validate-username ( -- )
     { { "username" [ v-username ] } } validate-params ;
 
+: select-capabilities ( seq -- )
+    [ t swap word>string set-value ] each ;
+
 : <edit-user-action> ( -- action )
     <page-action>
         [
             validate-username
 
             "username" value <user> select-tuple
-            [ from-object ]
-            [ capabilities>> [ "true" swap word>string set-value ] each ] bi
+            [ from-object ] [ capabilities>> select-capabilities ] bi
 
-            capabilities get words>strings "capabilities" set-value
+            init-capabilities
         ] >>init
 
         { user-admin "edit-user" } >>template
 
         [
+            "username" value <user> select-tuple
+            [ from-object ] [ capabilities>> select-capabilities ] bi
+
             init-capabilities
+            validate-capabilities
+
+            validate-user
 
             {
-                { "username" [ v-username ] }
-                { "realname" [ v-one-line ] }
                 { "new-password" [ [ v-password ] v-optional ] }
                 { "verify-password" [ [ v-password ] v-optional ] }
-                { "email" [ [ v-email ] v-optional ] }
             } validate-params
 
             "new-password" "verify-password"
@@ -136,11 +139,7 @@ TUPLE: user-admin < dispatcher ;
     <action>
         [
             validate-username
-
-            [ <user> select-tuple 1 >>deleted update-tuple ]
-            [ logout-all-sessions ]
-            bi
-
+            "username" value <user> delete-tuples
             URL" $user-admin" <redirect>
         ] >>submit ;
 
@@ -156,7 +155,9 @@ can-administer-users? define-capability
         <delete-user-action> "delete" add-responder
     <boilerplate>
         { user-admin "user-admin" } >>template
-    { can-administer-users? } <protected> ;
+    <protected>
+        "administer users" >>description
+        { can-administer-users? } >>capabilities ;
 
 : make-admin ( username -- )
     <user>
diff --git a/extra/webapps/user-admin/user-admin.xml b/extra/webapps/user-admin/user-admin.xml
index 93a701a696..2141fdc1d9 100644
--- a/extra/webapps/user-admin/user-admin.xml
+++ b/extra/webapps/user-admin/user-admin.xml
@@ -6,11 +6,11 @@
 		  <t:a t:href="$user-admin">List Users</t:a>
 		| <t:a t:href="$user-admin/new">Add User</t:a>
 
-		<t:if t:code="furnace.auth.login:allow-edit-profile?">
-			| <t:a t:href="$login/edit-profile" t:flow="begin">Edit Profile</t:a>
+		<t:if t:code="furnace.auth.features.edit-profile:allow-edit-profile?">
+			| <t:a t:href="$realm/edit-profile" t:aside="begin">Edit Profile</t:a>
 		</t:if>
 
-		| <t:button t:action="$login/logout" t:flow="begin" class="link-button link">Logout</t:button>
+		| <t:button t:action="$login-realm/logout" t:aside="begin" class="link-button link">Logout</t:button>
 	</div>
 
 	<h1><t:write-title /></h1>
diff --git a/extra/webapps/wee-url/shorten.xml b/extra/webapps/wee-url/shorten.xml
new file mode 100644
index 0000000000..8df7774fba
--- /dev/null
+++ b/extra/webapps/wee-url/shorten.xml
@@ -0,0 +1,10 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+        <t:form t:action="$wee-url">
+		<p>Shorten URL: <t:field t:name="url" t:size="40" /></p>
+		<input type="submit" value="Shorten" />
+	</t:form>
+
+</t:chloe>
diff --git a/extra/webapps/wee-url/show.xml b/extra/webapps/wee-url/show.xml
new file mode 100644
index 0000000000..ba44629bb1
--- /dev/null
+++ b/extra/webapps/wee-url/show.xml
@@ -0,0 +1,11 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<p>The URL:</p>
+	<blockquote><t:link t:name="url" /></blockquote>
+	<p>has been shortened to:</p>
+	<blockquote><t:link t:name="short" /></blockquote>
+	<p>enjoy!</p>
+
+</t:chloe>
diff --git a/extra/webapps/wee-url/wee-url.factor b/extra/webapps/wee-url/wee-url.factor
new file mode 100644
index 0000000000..27187c4352
--- /dev/null
+++ b/extra/webapps/wee-url/wee-url.factor
@@ -0,0 +1,71 @@
+! Copyright (C) 2007 Doug Coleman.
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: math.ranges sequences random accessors combinators.lib
+kernel namespaces fry db.types db.tuples urls validators
+html.components html.forms http http.server.dispatchers furnace
+furnace.actions furnace.boilerplate furnace.redirection ;
+IN: webapps.wee-url
+
+TUPLE: wee-url < dispatcher ;
+
+TUPLE: short-url short url ;
+
+short-url "SHORT_URLS" {
+    { "short" "SHORT" TEXT +user-assigned-id+ }
+    { "url" "URL" TEXT +not-null+ }
+} define-persistent
+
+: letter-bank ( -- seq )
+    CHAR: a CHAR: z [a,b]
+    CHAR: A CHAR: Z [a,b]
+    CHAR: 1 CHAR: 0 [a,b]
+    3append ; foldable
+
+: random-url ( -- string )
+    1 6 [a,b] random [ letter-bank random ] "" replicate-as ;
+
+: insert-short-url ( short-url -- short-url )
+    '[ , dup random-url >>short insert-tuple ] 10 retry ;
+
+: shorten ( url -- short )
+    short-url new swap >>url dup select-tuple
+    [ ] [ insert-short-url ] ?if short>> ;
+
+: short>url ( short -- url )
+    "$wee-url/go/" prepend >url adjust-url ;
+
+: expand-url ( string -- url )
+    short-url new swap >>short select-tuple url>> ;
+
+: <shorten-action> ( -- action )
+    <page-action>
+        { wee-url "shorten" } >>template
+        [ { { "url" [ v-url ] } } validate-params ] >>validate
+        [
+            "$wee-url/show/" "url" value shorten append >url <redirect>
+        ] >>submit ;
+
+: <show-action> ( -- action )
+    <page-action>
+        "short" >>rest
+        [
+            { { "short" [ v-one-word ] } } validate-params
+            "short" value expand-url "url" set-value
+            "short" value short>url "short" set-value
+        ] >>init
+        { wee-url "show" } >>template ;
+
+: <go-action> ( -- action )
+    <action>
+        "short" >>rest
+        [ { { "short" [ v-one-word ] } } validate-params ] >>init
+        [ "short" value expand-url <redirect> ] >>display ;
+
+: <wee-url> ( -- wee-url )
+    wee-url new-dispatcher
+        <shorten-action> "" add-responder
+        <show-action> "show" add-responder
+        <go-action> "go" add-responder
+    <boilerplate>
+        { wee-url "wee-url" } >>template ;
diff --git a/extra/webapps/wee-url/wee-url.xml b/extra/webapps/wee-url/wee-url.xml
new file mode 100644
index 0000000000..98d1095ed6
--- /dev/null
+++ b/extra/webapps/wee-url/wee-url.xml
@@ -0,0 +1,13 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<t:title>WeeURL!</t:title>
+
+	<div class="navbar"><t:a t:href="$wee-url">Shorten URL</t:a></div>
+
+	<h1><t:write-title /></h1>
+
+        <t:call-next-template />
+
+</t:chloe>
diff --git a/extra/webapps/wiki/articles.xml b/extra/webapps/wiki/articles.xml
index e19c531d3d..9b2ae930fb 100644
--- a/extra/webapps/wiki/articles.xml
+++ b/extra/webapps/wiki/articles.xml
@@ -7,7 +7,7 @@
 	<ul>
 		<t:bind-each t:name="articles">
 			<li>
-				<t:a t:href="view" t:query="title"><t:label t:name="title"/></t:a>
+				<t:a t:href="$wiki/view" t:rest="title"><t:label t:name="title"/></t:a>
 			</li>
 		</t:bind-each>
 	</ul>
diff --git a/extra/webapps/wiki/changes.xml b/extra/webapps/wiki/changes.xml
index 95fb0de2fe..7004871df3 100644
--- a/extra/webapps/wiki/changes.xml
+++ b/extra/webapps/wiki/changes.xml
@@ -4,16 +4,4 @@
 
 	<t:title>Recent Changes</t:title>
 
-	<ul>
-		<t:bind-each t:name="changes">
-			<li>
-				<t:a t:href="title" t:query="title"><t:label t:name="title" /></t:a>
-				on
-				<t:a t:href="revision" t:query="id"><t:label t:name="date" /></t:a>
-				by
-				<t:a t:href="user-edits" t:query="author"><t:label t:name="author" /></t:a>
-			</li>
-		</t:bind-each>
-	</ul>
-
 </t:chloe>
diff --git a/extra/webapps/wiki/diff.xml b/extra/webapps/wiki/diff.xml
index 35afe51b66..75cb4a29fb 100644
--- a/extra/webapps/wiki/diff.xml
+++ b/extra/webapps/wiki/diff.xml
@@ -8,13 +8,13 @@
 		<tr>
 			<th class="field-label">Old revision:</th>
 			<t:bind t:name="old">
-				<td>Created on <t:label t:name="date" /> by <t:a t:href="user-edits" t:query="author"><t:label t:name="author" /></t:a>.</td>
+				<td>Created on <t:label t:name="date" /> by <t:a t:href="user-edits" t:rest="author"><t:label t:name="author" /></t:a>.</td>
 			</t:bind>
 		</tr>
 		<tr>
 			<th class="field-label">New revision:</th>
-			<t:bind t:name="old">
-				<td>Created on <t:label t:name="date" /> by <t:a t:href="user-edits" t:query="author"><t:label t:name="author" /></t:a>.</td>
+			<t:bind t:name="new">
+				<td>Created on <t:label t:name="date" /> by <t:a t:href="user-edits" t:rest="author"><t:label t:name="author" /></t:a>.</td>
 			</t:bind>
 		</tr>
 	</table>
diff --git a/extra/webapps/wiki/edit.xml b/extra/webapps/wiki/edit.xml
index 057b7f8f71..90843a7140 100644
--- a/extra/webapps/wiki/edit.xml
+++ b/extra/webapps/wiki/edit.xml
@@ -4,12 +4,17 @@
 
 	<t:title>Edit: <t:label t:name="title" /></t:title>
 
-	<t:form t:action="$wiki/edit" t:for="title">
+	<t:form t:action="$wiki/submit" t:for="title">
 
 		<p>
 			<t:textarea t:name="content" t:rows="30" t:cols="80" />
 		</p>
 
+		<p>
+			Describe this revision:
+			<t:field t:name="description" t:size="60" />
+		</p>
+
 		<p>
 			<input type="submit" value="Save" />
 		</p>
diff --git a/extra/webapps/wiki/initial-content/Farkup.txt b/extra/webapps/wiki/initial-content/Farkup.txt
new file mode 100644
index 0000000000..b8de408588
--- /dev/null
+++ b/extra/webapps/wiki/initial-content/Farkup.txt
@@ -0,0 +1,67 @@
+Look at the source to this page by clicking *Edit* to compare the farkup language with resulting output.
+
+= level 1 heading =
+
+== level 2 heading ==
+
+=== level 3 heading ===
+
+==== level 4 heading ====
+
+Here is a paragraph of text, with _emphasized_ and *strong* text, together with an inline %code snippet%. Did you know that E=mc^2^, and L~2~ spaces are cool? Of course, if you want to include \_ special \* characters \^ you \~ can \% do that, too.
+
+You can make [[Wiki Links]] just like that, as well as links to external sites: [[http://sbcl.sourceforge.net]]. [[Factor|Custom link text]] can be used [[http://www.apple.com|with both types of links]].
+
+Images can be embedded in the text:
+
+[[image:http://factorcode.org/graphics/logo.png]]
+
+Lists:
+
+- a list
+- with three
+- items
+
+Tables:
+
+|a table|with|four|columns|
+|and|two|rows|...|
+
+Here is some code:
+
+[{HAI
+CAN HAS STDIO?
+VISIBLE "HAI WORLD!"
+KTHXBYE}]
+
+There is syntax highlighting for various languages, too:
+
+[factor{PEG: parse-request-line ( string -- triple )
+    #! Triple is { method url version }
+    [ 
+        'space' ,
+        'http-method' ,
+        'space' ,
+        'url' ,
+        'space' ,
+        'http-version' ,
+        'space' ,
+    ] seq* just ;}]
+
+Some Java:
+
+[java{/**
+ * Returns the extension of the specified filename, or an empty
+ * string if there is none.
+ * @param path The path
+ */
+public static String getFileExtension(String path)
+{
+    int fsIndex = getLastSeparatorIndex(path);
+    int index = path.lastIndexOf('.');
+    // there could be a dot in the path and no file extension
+    if(index == -1 || index < fsIndex )
+        return "";
+    else
+        return path.substring(index);
+}}]
diff --git a/extra/webapps/wiki/initial-content/Front Page.txt b/extra/webapps/wiki/initial-content/Front Page.txt
new file mode 100644
index 0000000000..2f390f7349
--- /dev/null
+++ b/extra/webapps/wiki/initial-content/Front Page.txt	
@@ -0,0 +1,3 @@
+Congratulations, you are now running your very own Wiki.
+
+You can now click *Edit* below and begin editing the content of the [[Front Page]]. More information at [[Wiki Help]].
diff --git a/extra/webapps/wiki/initial-content/Wiki Help.txt b/extra/webapps/wiki/initial-content/Wiki Help.txt
new file mode 100644
index 0000000000..9c65876377
--- /dev/null
+++ b/extra/webapps/wiki/initial-content/Wiki Help.txt	
@@ -0,0 +1,5 @@
+This Wiki uses [[Farkup]] to mark up text.
+
+Two special article names are recognized by the Wiki: [[Sidebar]] and [[Footer]]. They do not exist by default, but if you create them, they will be visible on every page.
+
+The Wiki supports hierarchical article organization. You can separate components in article names with slashes, and Wiki links only display the last component. An example: [[Factor/Features]].
diff --git a/extra/webapps/wiki/page-common.xml b/extra/webapps/wiki/page-common.xml
index 1d4b507320..0d029946f8 100644
--- a/extra/webapps/wiki/page-common.xml
+++ b/extra/webapps/wiki/page-common.xml
@@ -2,12 +2,16 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
+	<t:atom t:href="$wiki/revisions.atom" t:rest="title">
+		Revisions of <t:label t:name="title" />
+	</t:atom>
+
 	<t:call-next-template />
 
 	<div class="navbar">
-		<t:a t:href="$wiki/view" t:query="title">Latest</t:a>
-		| <t:a t:href="$wiki/revisions" t:query="title">Revisions</t:a>
-		| <t:a t:href="$wiki/edit" t:query="title">Edit</t:a>
+		<t:a t:href="$wiki/view" t:rest="title">Latest</t:a>
+		| <t:a t:href="$wiki/revisions" t:rest="title">Revisions</t:a>
+		| <t:a t:href="$wiki/edit" t:rest="title">Edit</t:a>
 		| <t:button t:action="$wiki/delete" t:for="title" class="link-button link">Delete</t:button>
 	</div>
 
diff --git a/extra/webapps/wiki/revisions-common.xml b/extra/webapps/wiki/revisions-common.xml
new file mode 100644
index 0000000000..6cf331532a
--- /dev/null
+++ b/extra/webapps/wiki/revisions-common.xml
@@ -0,0 +1,33 @@
+<?xml version='1.0' ?>
+
+<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
+
+	<div class="revisions">
+
+		<table>
+
+			<tr>
+				<th>Article</th>
+				<th>Date</th>
+				<th>By</th>
+				<th>Description</th>
+				<th>Rollback</th>
+			</tr>
+
+			<t:bind-each t:name="revisions">
+				<tr>
+					<td> <t:a t:href="$wiki/view" t:rest="title"><t:label t:name="title" /></t:a> </td>
+					<td> <t:a t:href="$wiki/revision" t:rest="id"><t:label t:name="date" /></t:a> </td>
+					<td> <t:a t:href="$wiki/user-edits" t:rest="author"><t:label t:name="author" /> </t:a></td>
+					<td> <t:label t:name="description" /> </td>
+					<td> <t:button class="link link-button" t:action="$wiki/rollback" t:for="id">Rollback</t:button> </td>
+				</tr>
+			</t:bind-each>
+
+		</table>
+
+	</div>
+
+	<t:call-next-template />
+
+</t:chloe>
diff --git a/extra/webapps/wiki/revisions.xml b/extra/webapps/wiki/revisions.xml
index 2a909e6ab3..68f377e70b 100644
--- a/extra/webapps/wiki/revisions.xml
+++ b/extra/webapps/wiki/revisions.xml
@@ -4,27 +4,9 @@
 
 	<t:title>Revisions of <t:label t:name="title" /></t:title>
 
-	<div class="revisions">
-		<table>
-			<tr>
-				<th>Revision</th>
-				<th>Author</th>
-				<th>Rollback</th>
-			</tr>
-
-			<t:bind-each t:name="revisions">
-				<tr>
-					<td> <t:a t:href="revision" t:query="id"><t:label t:name="date" /></t:a> </td>
-					<td> <t:a t:href="user-edits" t:query="author"><t:label t:name="author" /></t:a> </td>
-					<td> <t:button t:action="rollback" t:for="id" class="link link-button">Rollback</t:button> </td>
-				</tr>
-			</t:bind-each>
-		</table>
-	</div>
-
 	<h2>View Differences</h2>
 
-	<form action="diff" method="get">
+	<t:form t:action="$wiki/diff" t:method="get">
 		<table>
 			<tr>
 				<th class="field-label">Old revision:</th>
@@ -51,6 +33,6 @@
 		</table>
 
 		<input type="submit" value="View" />
-	</form>
+	</t:form>
 
 </t:chloe>
diff --git a/extra/webapps/wiki/user-edits.xml b/extra/webapps/wiki/user-edits.xml
index 61809802d9..8035c24e24 100644
--- a/extra/webapps/wiki/user-edits.xml
+++ b/extra/webapps/wiki/user-edits.xml
@@ -2,16 +2,10 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
+	<t:atom t:href="$wiki/user-edits.atom" t:rest="author">
+		Edits by <t:label t:name="author" />
+	</t:atom>
+
 	<t:title>Edits by <t:label t:name="author" /></t:title>
 
-	<ul>
-		<t:bind-each t:name="user-edits">
-			<li>
-				<t:a t:href="view" t:query="title"><t:label t:name="title" /></t:a>
-				on
-				<t:a t:href="revision" t:query="id"><t:label t:name="date" /></t:a>
-			</li>
-		</t:bind-each>
-	</ul>
-
 </t:chloe>
diff --git a/extra/webapps/wiki/view.xml b/extra/webapps/wiki/view.xml
index 30dfb71270..5136e4945d 100644
--- a/extra/webapps/wiki/view.xml
+++ b/extra/webapps/wiki/view.xml
@@ -5,9 +5,15 @@
 	<t:title><t:label t:name="title" /></t:title>
 
 	<div class="description">
-		<t:farkup t:name="content" />
+		<t:html t:name="html" />
 	</div>
 
-	<p><em>This revision created on <t:label t:name="date" /> by <t:a t:href="user-edits" t:query="author"><t:label t:name="author" /></t:a>.</em></p>
+	<p>
+		<em>This revision created on <t:label t:name="date" /> by <t:a t:href="$wiki/user-edits" t:rest="author"><t:label t:name="author" /></t:a>
+			<t:if t:value="description">
+				(<t:label t:name="description" />)
+			</t:if>
+		</em>
+	</p>
 
 </t:chloe>
diff --git a/extra/webapps/wiki/wiki-common.xml b/extra/webapps/wiki/wiki-common.xml
index 67a5b91c93..978551a638 100644
--- a/extra/webapps/wiki/wiki-common.xml
+++ b/extra/webapps/wiki/wiki-common.xml
@@ -2,28 +2,69 @@
 
 <t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
 
+	<t:atom t:href="$wiki/changes.atom">
+		Recent Changes
+	</t:atom>
+
 	<t:style t:include="resource:extra/webapps/wiki/wiki.css" />
 
-	<div class="navbar">
+	<table width="100%">
+		<tr>
+			<t:if t:value="sidebar">
+				<td valign="top" style="width: 210px;">
+					<div class="sidebar">
+						<t:bind t:name="sidebar">
+							<h2>
+								<t:a t:href="$wiki/view" t:query="title">
+									<t:label t:name="title" />
+								</t:a>
+							</h2>
 
-		<t:a t:href="$wiki">Front Page</t:a>
-		| <t:a t:href="$wiki/articles">All Articles</t:a>
-		| <t:a t:href="$wiki/changes">Recent Changes</t:a>
-
-		<t:if t:code="furnace.sessions:uid">
-
-			<t:if t:code="furnace.auth.login:allow-edit-profile?">
-				| <t:a t:href="$login/edit-profile" t:flow="begin">Edit Profile</t:a>
+							<t:html t:name="html" />
+						</t:bind>
+					</div>
+				</td>
 			</t:if>
 
-			| <t:button t:action="$login/logout" t:flow="begin" class="link-button link">Logout</t:button>
+			<td valign="top">
 
+				<div class="navbar">
+
+					<t:a t:href="$wiki">Front Page</t:a>
+					| <t:a t:href="$wiki/articles">All Articles</t:a>
+					| <t:a t:href="$wiki/changes">Recent Changes</t:a>
+					| <t:a t:href="$wiki/random">Random Article</t:a>
+
+					<t:if t:code="furnace.auth:logged-in?">
+
+						<t:if t:code="furnace.auth.features.edit-profile:allow-edit-profile?">
+							| <t:a t:href="$realm/edit-profile" t:aside="begin">Edit Profile</t:a>
+						</t:if>
+
+						| <t:button t:action="$login-realm/logout" t:aside="begin" class="link-button link">Logout</t:button>
+
+					</t:if>
+
+				</div>
+
+				<h1><t:write-title /></h1>
+
+				<t:call-next-template />
+
+			</td>
+		</tr>
+
+		<t:if t:value="footer">
+			<tr>
+				<td colspan="2">
+					<t:bind t:name="footer">
+						<small>
+							<t:html t:name="html" />
+						</small>
+					</t:bind>
+				</td>
+			</tr>
 		</t:if>
-
-	</div>
-
-	<h1><t:write-title /></h1>
-
-        <t:call-next-template />
+	</table>
 
 </t:chloe>
diff --git a/extra/webapps/wiki/wiki.css b/extra/webapps/wiki/wiki.css
index 83ec918e3b..67000ae63c 100644
--- a/extra/webapps/wiki/wiki.css
+++ b/extra/webapps/wiki/wiki.css
@@ -38,3 +38,10 @@
     border-width: 1px 1px 0 0;
 }
 
+.sidebar {
+    padding: 4px;
+    margin: 4px;
+    border: 1px dashed grey;
+    background: #f5f1fd;
+    width: 200px;
+}
diff --git a/extra/webapps/wiki/wiki.factor b/extra/webapps/wiki/wiki.factor
index 6dcf89e208..5f679be431 100644
--- a/extra/webapps/wiki/wiki.factor
+++ b/extra/webapps/wiki/wiki.factor
@@ -1,35 +1,53 @@
 ! Copyright (C) 2008 Slava Pestov
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors kernel hashtables calendar
-namespaces splitting sequences sorting math.order
-html.components
+USING: accessors kernel hashtables calendar random assocs
+namespaces splitting sequences sorting math.order present
+io.files io.encodings.ascii
+syndication farkup
+html.components html.forms
 http.server
 http.server.dispatchers
 furnace
 furnace.actions
+furnace.redirection
 furnace.auth
 furnace.auth.login
 furnace.boilerplate
+furnace.syndication
 validators
 db.types db.tuples lcs farkup urls ;
 IN: webapps.wiki
 
+: wiki-url ( rest path -- url )
+    [ "$wiki/" % % "/" % % ] "" make
+    <url> swap >>path ;
+
+: view-url ( title -- url ) "view" wiki-url ;
+
+: edit-url ( title -- url ) "edit" wiki-url ;
+
+: revisions-url ( title -- url ) "revisions" wiki-url ;
+
+: revision-url ( id -- url ) "revision" wiki-url ;
+
+: user-edits-url ( author -- url ) "user-edits" wiki-url ;
+
 TUPLE: wiki < dispatcher ;
 
+SYMBOL: can-delete-wiki-articles?
+
+can-delete-wiki-articles? define-capability
+
 TUPLE: article title revision ;
 
 article "ARTICLES" {
     { "title" "TITLE" { VARCHAR 256 } +not-null+ +user-assigned-id+ }
-    ! { "AUTHOR" INTEGER +not-null+ } ! uid
-    ! { "PROTECTED" BOOLEAN +not-null+ }
     { "revision" "REVISION" INTEGER +not-null+ } ! revision id
 } define-persistent
 
 : <article> ( title -- article ) article new swap >>title ;
 
-: init-articles-table article ensure-table ;
-
-TUPLE: revision id title author date content ;
+TUPLE: revision id title author date content html description ;
 
 revision "REVISIONS" {
     { "id" "ID" INTEGER +db-assigned-id+ }
@@ -37,145 +55,243 @@ revision "REVISIONS" {
     { "author" "AUTHOR" { VARCHAR 256 } +not-null+ } ! uid
     { "date" "DATE" TIMESTAMP +not-null+ }
     { "content" "CONTENT" TEXT +not-null+ }
+    { "html" "HTML" TEXT +not-null+ } ! Farkup converted to HTML
+    { "description" "DESCRIPTION" TEXT }
 } define-persistent
 
+M: revision feed-entry-title
+    [ title>> ] [ drop " by " ] [ author>> ] tri 3append ;
+
+M: revision feed-entry-date date>> ;
+
+M: revision feed-entry-url id>> revision-url ;
+
+: reverse-chronological-order ( seq -- sorted )
+    [ [ date>> ] compare invert-comparison ] sort ;
+
 : <revision> ( id -- revision )
     revision new swap >>id ;
 
-: init-revisions-table revision ensure-table ;
+: compute-html ( revision -- )
+    dup content>> convert-farkup >>html drop ;
 
 : validate-title ( -- )
     { { "title" [ v-one-line ] } } validate-params ;
 
+: validate-author ( -- )
+    { { "author" [ v-username ] } } validate-params ;
+
+: <article-boilerplate> ( responder -- responder' )
+    <boilerplate>
+        { wiki "page-common" } >>template ;
+
 : <main-article-action> ( -- action )
     <action>
-        [
-            <url>
-                "$wiki/view" >>path
-                "Front Page" "title" set-query-param
-            <redirect>
-        ] >>display ;
+        [ "Front Page" view-url <redirect> ] >>display ;
+
+: latest-revision ( title -- revision/f )
+    <article> select-tuple
+    dup [ revision>> <revision> select-tuple ] when ;
+
+: init-relative-link-prefix ( -- )
+    URL" $wiki/view/" adjust-url present relative-link-prefix set ;
 
 : <view-article-action> ( -- action )
     <action>
-        "title" >>rest-param
+
+        "title" >>rest
 
         [
             validate-title
-            "view?title=" relative-link-prefix set
+            init-relative-link-prefix
         ] >>init
 
         [
-            "title" value dup <article> select-tuple [
-                revision>> <revision> select-tuple from-object
+            "title" value dup latest-revision [
+                from-object
                 { wiki "view" } <chloe-content>
             ] [
-                <url>
-                    "$wiki/edit" >>path
-                    swap "title" set-query-param
-                <redirect>
+                edit-url <redirect>
             ] ?if
-        ] >>display ;
+        ] >>display
+
+    <article-boilerplate> ;
 
 : <view-revision-action> ( -- action )
     <page-action>
+
+        "id" >>rest
+
         [
-            { { "id" [ v-integer ] } } validate-params
+            validate-integer-id
             "id" value <revision>
             select-tuple from-object
+            init-relative-link-prefix
         ] >>init
 
-        { wiki "view" } >>template ;
+        { wiki "view" } >>template
+    
+    <article-boilerplate> ;
+
+: <random-article-action> ( -- action )
+    <action>
+        [
+            article new select-tuples random
+            [ title>> ] [ "Front Page" ] if*
+            view-url <redirect>
+        ] >>display ;
+
+: amend-article ( revision article -- )
+    swap id>> >>revision update-tuple ;
+
+: add-article ( revision -- )
+    [ title>> ] [ id>> ] bi article boa insert-tuple ;
 
 : add-revision ( revision -- )
+    [ compute-html ]
     [ insert-tuple ]
     [
-        dup title>> <article> select-tuple [
-            swap id>> >>revision update-tuple
-        ] [
-            [ title>> ] [ id>> ] bi article boa insert-tuple
-        ] if*
-    ] bi ;
+        dup title>> <article> select-tuple
+        [ amend-article ] [ add-article ] if*
+    ]
+    tri ;
 
 : <edit-article-action> ( -- action )
     <page-action>
+
+        "title" >>rest
+
         [
             validate-title
-            "title" value <article> select-tuple [
-                revision>> <revision> select-tuple from-object
-            ] when*
+
+            "title" value <article> select-tuple
+            [ revision>> <revision> select-tuple ]
+            [ f <revision> "title" value >>title ]
+            if*
+
+            [ title>> "title" set-value ]
+            [ content>> "content" set-value ]
+            bi
         ] >>init
 
         { wiki "edit" } >>template
-        
+
+    <article-boilerplate> ;
+
+: <submit-article-action> ( -- action )
+    <action>
         [
             validate-title
-            { { "content" [ v-required ] } } validate-params
+
+            {
+                { "content" [ v-required ] }
+                { "description" [ [ v-one-line ] v-optional ] }
+            } validate-params
 
             f <revision>
                 "title" value >>title
                 now >>date
-                logged-in-user get username>> >>author
+                username >>author
                 "content" value >>content
-            [ add-revision ]
-            [
-                <url>
-                    "$wiki/view" >>path
-                    swap title>> "title" set-query-param
-                <redirect>
-            ] bi
-        ] >>submit ;
+                "description" value >>description
+            [ add-revision ] [ title>> view-url <redirect> ] bi
+        ] >>submit
+
+    <protected>
+        "edit wiki articles" >>description ;
+
+: <revisions-boilerplate> ( responder -- responder )
+    <boilerplate>
+        { wiki "revisions-common" } >>template ;
+
+: list-revisions ( -- seq )
+    f <revision> "title" value >>title select-tuples
+    reverse-chronological-order ;
 
 : <list-revisions-action> ( -- action )
     <page-action>
+
+        "title" >>rest
+
         [
             validate-title
-            f <revision> "title" value >>title select-tuples
-            [ [ date>> ] compare invert-comparison ] sort
-            "revisions" set-value
+            list-revisions "revisions" set-value
         ] >>init
 
-        { wiki "revisions" } >>template ;
+        { wiki "revisions" } >>template
+
+    <revisions-boilerplate>
+    <article-boilerplate> ;
+
+: <list-revisions-feed-action> ( -- action )
+    <feed-action>
+
+        "title" >>rest
+
+        [ validate-title ] >>init
+
+        [ "Revisions of " "title" value append ] >>title
+
+        [ "title" value revisions-url ] >>url
+
+        [ list-revisions ] >>entries ;
+
+: rollback-description ( description -- description' )
+    [ "Rollback of '" swap "'" 3append ] [ "Rollback" ] if* ;
 
 : <rollback-action> ( -- action )
     <action>
+
+        [ validate-integer-id ] >>validate
+
         [
-            { { "id" [ v-integer ] } } validate-params
-        ] >>validate
-        
-        [
-            "id" value <revision> select-tuple clone f >>id
+            "id" value <revision> select-tuple
+                f >>id
+                now >>date
+                username >>author
+                [ rollback-description ] change-description
             [ add-revision ]
-            [
-                <url>
-                    "$wiki/view" >>path
-                    swap title>> "title" set-query-param
-                <redirect>
-            ] bi
-        ] >>submit ;
+            [ title>> revisions-url <redirect> ] bi
+        ] >>submit
+    
+    <protected>
+        "rollback wiki articles" >>description ;
+
+: list-changes ( -- seq )
+    f <revision> select-tuples
+    reverse-chronological-order ;
 
 : <list-changes-action> ( -- action )
     <page-action>
-        [
-            f <revision> select-tuples
-            [ [ date>> ] compare invert-comparison ] sort
-            "changes" set-value
-        ] >>init
+        [ list-changes "revisions" set-value ] >>init
+        { wiki "changes" } >>template
 
-        { wiki "changes" } >>template ;
+    <revisions-boilerplate> ;
+
+: <list-changes-feed-action> ( -- action )
+    <feed-action>
+        [ URL" $wiki/changes" ] >>url
+        [ "All changes" ] >>title
+        [ list-changes ] >>entries ;
 
 : <delete-action> ( -- action )
     <action>
+
         [ validate-title ] >>validate
 
         [
             "title" value <article> delete-tuples
             f <revision> "title" value >>title delete-tuples
             URL" $wiki" <redirect>
-        ] >>submit ;
+        ] >>submit
+
+     <protected>
+        "delete wiki articles" >>description
+        { can-delete-wiki-articles? } >>capabilities ;
 
 : <diff-action> ( -- action )
     <page-action>
+
         [
             {
                 { "old-id" [ v-integer ] }
@@ -185,17 +301,22 @@ revision "REVISIONS" {
             "old-id" "new-id"
             [ value <revision> select-tuple ] bi@
             [
-                [ [ title>> "title" set-value ] [ "old" set-value ] bi ]
-                [ "new" set-value ] bi*
+                over title>> "title" set-value
+                [ "old" [ from-object ] nest-form ]
+                [ "new" [ from-object ] nest-form ]
+                bi*
             ]
             [ [ content>> string-lines ] bi@ diff "diff" set-value ]
             2bi
         ] >>init
 
-        { wiki "diff" } >>template ;
+        { wiki "diff" } >>template
+
+    <article-boilerplate> ;
 
 : <list-articles-action> ( -- action )
     <page-action>
+
         [
             f <article> select-tuples
             [ [ title>> ] compare ] sort
@@ -204,32 +325,68 @@ revision "REVISIONS" {
 
         { wiki "articles" } >>template ;
 
+: list-user-edits ( -- seq )
+    f <revision> "author" value >>author select-tuples
+    reverse-chronological-order ;
+
 : <user-edits-action> ( -- action )
     <page-action>
+
+        "author" >>rest
+
         [
-            { { "author" [ v-username ] } } validate-params
-            f <revision> "author" value >>author
-            select-tuples "user-edits" set-value
+            validate-author
+            list-user-edits "revisions" set-value
         ] >>init
 
-        { wiki "user-edits" } >>template ;
+        { wiki "user-edits" } >>template
+
+    <revisions-boilerplate> ;
+
+: <user-edits-feed-action> ( -- action )
+    <feed-action>
+        "author" >>rest
+        [ validate-author ] >>init
+        [ "Edits by " "author" value append ] >>title
+        [ "author" value user-edits-url ] >>url
+        [ list-user-edits ] >>entries ;
+
+: init-sidebar ( -- )
+    "Sidebar" latest-revision [ "sidebar" [ from-object ] nest-form ] when*
+    "Footer" latest-revision [ "footer" [ from-object ] nest-form ] when* ;
 
 : <wiki> ( -- dispatcher )
     wiki new-dispatcher
-        <dispatcher>
-            <main-article-action> "" add-responder
-            <view-article-action> "view" add-responder
-            <view-revision-action> "revision" add-responder
-            <list-revisions-action> "revisions" add-responder
-            <diff-action> "diff" add-responder
-            <edit-article-action> { } <protected> "edit" add-responder
-        <boilerplate>
-            { wiki "page-common" } >>template
-        >>default
+        <main-article-action> "" add-responder
+        <view-article-action> "view" add-responder
+        <view-revision-action> "revision" add-responder
+        <random-article-action> "random" add-responder
+        <list-revisions-action> "revisions" add-responder
+        <list-revisions-feed-action> "revisions.atom" add-responder
+        <diff-action> "diff" add-responder
+        <edit-article-action> "edit" add-responder
+        <submit-article-action> "submit" add-responder
         <rollback-action> "rollback" add-responder
         <user-edits-action> "user-edits" add-responder
         <list-articles-action> "articles" add-responder
         <list-changes-action> "changes" add-responder
-        <delete-action> { } <protected> "delete" add-responder
+        <user-edits-feed-action> "user-edits.atom" add-responder
+        <list-changes-feed-action> "changes.atom" add-responder
+        <delete-action> "delete" add-responder
     <boilerplate>
+        [ init-sidebar ] >>init
         { wiki "wiki-common" } >>template ;
+
+: init-wiki ( -- )
+    "resource:extra/webapps/wiki/initial-content" directory* keys
+    [
+        dup file-name ".txt" ?tail [
+            swap ascii file-contents
+            f <revision>
+                swap >>content
+                swap >>title
+                "slava" >>author
+                now >>date
+            add-revision
+        ] [ 2drop ] if
+    ] each ;
diff --git a/extra/websites/concatenative/concatenative.factor b/extra/websites/concatenative/concatenative.factor
new file mode 100644
index 0000000000..e37f7d4c3f
--- /dev/null
+++ b/extra/websites/concatenative/concatenative.factor
@@ -0,0 +1,108 @@
+! Copyright (c) 2008 Slava Pestov
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel sequences assocs io.files io.sockets
+io.sockets.secure io.servers.connection
+namespaces db db.tuples db.sqlite smtp urls
+logging.insomniac
+html.templates.chloe
+http.server
+http.server.dispatchers
+http.server.redirection
+furnace.alloy
+furnace.auth.login
+furnace.auth.providers.db
+furnace.auth.features.edit-profile
+furnace.auth.features.recover-password
+furnace.auth.features.registration
+furnace.auth.features.deactivate-user
+furnace.boilerplate
+furnace.redirection
+webapps.blogs
+webapps.pastebin
+webapps.planet
+webapps.todo
+webapps.wiki
+webapps.wee-url
+webapps.user-admin ;
+IN: websites.concatenative
+
+: test-db ( -- params db ) "resource:test.db" sqlite-db ;
+
+: init-factor-db ( -- )
+    test-db [
+        init-furnace-tables
+
+        {
+            post comment
+            paste annotation
+            blog posting
+            todo
+            short-url
+            article revision
+        } ensure-tables
+    ] with-db ;
+
+TUPLE: factor-website < dispatcher ;
+
+: <factor-website> ( -- responder )
+    factor-website new-dispatcher
+        <blogs> "blogs" add-responder
+        <todo-list> "todo" add-responder
+        <pastebin> "pastebin" add-responder
+        <planet> "planet" add-responder
+        <wiki> "wiki" add-responder
+        <wee-url> "wee-url" add-responder
+        <user-admin> "user-admin" add-responder
+        URL" /wiki/view/Front Page" <redirect-responder> "" add-responder
+    "Factor website" <login-realm>
+        "Factor website" >>name
+        allow-registration
+        allow-password-recovery
+        allow-edit-profile
+        allow-deactivation
+    <boilerplate>
+        { factor-website "page" } >>template
+    test-db <alloy> ;
+
+SYMBOL: key-password
+SYMBOL: key-file
+SYMBOL: dh-file
+
+: common-configuration ( -- )
+    reset-templates
+    "concatenative.org" 25 <inet> smtp-server set-global
+    "noreply@concatenative.org" lost-password-from set-global
+    "website@concatenative.org" insomniac-sender set-global
+    "slava@factorcode.org" insomniac-recipients set-global
+    <factor-website> main-responder set-global
+    init-factor-db ;
+
+: init-testing ( -- )
+    "resource:basis/openssl/test/dh1024.pem" dh-file set-global
+    "resource:basis/openssl/test/server.pem" key-file set-global
+    "password" key-password set-global
+    common-configuration ;
+
+: init-production ( -- )
+    f dh-file set-global
+    f key-password set-global
+    "/home/slava/cert/host.pem" key-file set-global
+    common-configuration ;
+
+: <factor-secure-config> ( -- config )
+    <secure-config>
+        key-file get >>key-file
+        dh-file get >>dh-file
+        key-password get >>password ;
+
+: <factor-website-server> ( -- threaded-server )
+    <http-server>
+        <factor-secure-config> >>secure-config
+        8080 >>insecure
+        8431 >>secure ;
+
+: start-website ( -- )
+    test-db start-expiring
+    test-db start-update-task
+    http-insomniac
+    <factor-website-server> start-server ;
diff --git a/extra/webapps/factor-website/page.css b/extra/websites/concatenative/page.css
similarity index 97%
rename from extra/webapps/factor-website/page.css
rename to extra/websites/concatenative/page.css
index 49e26883ad..8115627742 100644
--- a/extra/webapps/factor-website/page.css
+++ b/extra/websites/concatenative/page.css
@@ -32,7 +32,7 @@ a:hover, .link:hover {
 }
 
 .navbar {
-	background-color: #eee;
+	background-color: #eeeee0;
 	padding: 5px;
 	border: 1px solid #ccc;
 }
diff --git a/extra/webapps/factor-website/page.xml b/extra/websites/concatenative/page.xml
similarity index 76%
rename from extra/webapps/factor-website/page.xml
rename to extra/websites/concatenative/page.xml
index 32e1223c58..129dcb1546 100644
--- a/extra/webapps/factor-website/page.xml
+++ b/extra/websites/concatenative/page.xml
@@ -10,9 +10,9 @@
 		<head>
 			<t:write-title />
 
-			<t:style t:include="resource:extra/xmode/code2html/stylesheet.css" />
+			<t:style t:include="resource:basis/xmode/code2html/stylesheet.css" />
 
-			<t:style t:include="resource:extra/webapps/factor-website/page.css" />
+			<t:style t:include="resource:extra/websites/concatenative/page.css" />
 
 			<t:write-style />
 
diff --git a/extra/windows/com/wrapper/wrapper.factor b/extra/windows/com/wrapper/wrapper.factor
deleted file mode 100755
index 78073dbdc8..0000000000
--- a/extra/windows/com/wrapper/wrapper.factor
+++ /dev/null
@@ -1,111 +0,0 @@
-USING: alien alien.c-types windows.com.syntax
-windows.com.syntax.private windows.com continuations kernel
-sequences.lib namespaces windows.ole32 libc
-assocs accessors arrays sequences quotations combinators
-math combinators.lib words compiler.units destructors ;
-IN: windows.com.wrapper
-
-TUPLE: com-wrapper vtbls freed? ;
-
-<PRIVATE
-
-SYMBOL: +wrapped-objects+
-+wrapped-objects+ get-global
-[ H{ } +wrapped-objects+ set-global ]
-unless
-
-: com-unwrap ( wrapped -- object )
-    +wrapped-objects+ get-global at*
-    [ "invalid COM wrapping pointer" throw ] unless ;
-
-: (free-wrapped-object) ( wrapped -- )
-    [ +wrapped-objects+ get-global delete-at ] keep
-    free ;
-
-: (make-query-interface) ( interfaces -- quot )
-    [
-        [ swap 16 memory>byte-array ] %
-        [
-            >r find-com-interface-definition family-tree
-            r> 1quotation [ >r iid>> r> 2array ] curry map
-        ] map-index concat
-        [ f ] suffix ,
-        \ case ,
-        "void*" heap-size
-        [ * rot <displaced-alien> com-add-ref 0 rot set-void*-nth S_OK ]
-        curry ,
-        [ nip f 0 rot set-void*-nth E_NOINTERFACE ] ,
-        \ if* ,
-    ] [ ] make ;
-
-: (make-add-ref) ( interfaces -- quot )
-    length "void*" heap-size * [ swap <displaced-alien>
-        0 over ulong-nth
-        1+ [ 0 rot set-ulong-nth ] keep
-    ] curry ;
-
-: (make-release) ( interfaces -- quot )
-    length "void*" heap-size * [ over <displaced-alien>
-        0 over ulong-nth
-        1- [ 0 rot set-ulong-nth ] keep
-        dup zero? [ swap (free-wrapped-object) ] [ nip ] if
-    ] curry ;
-
-: (make-iunknown-methods) ( interfaces -- quots )
-    [ (make-query-interface) ]
-    [ (make-add-ref) ]
-    [ (make-release) ] tri
-    3array ;
-    
-: (thunk) ( n -- quot )
-    dup 0 =
-    [ drop [ ] ]
-    [ "void*" heap-size neg * [ swap <displaced-alien> ] curry ]
-    if ;
-
-: (thunked-quots) ( quots iunknown-methods thunk -- quots' )
-    [ [ swap 2array ] curry map swap ] keep
-    [ com-unwrap ] compose [ swap 2array ] curry map append ;
-
-: compile-alien-callback ( return parameters abi quot -- alien )
-    [ alien-callback ] 4 ncurry
-    [ gensym [ swap define ] keep ] with-compilation-unit
-    execute ;
-
-: (make-vtbl) ( interface-name quots iunknown-methods n -- )
-    (thunk) (thunked-quots)
-    swap find-com-interface-definition family-tree-functions [
-        { return>> parameters>> } get-slots
-        dup length 1- roll [
-            first dup empty?
-            [ 2drop [ ] ]
-            [ swap [ ndip ] 2curry ]
-            if
-        ] [ second ] bi compose
-        "stdcall" swap compile-alien-callback
-    ] 2map >c-void*-array [ byte-length malloc ] keep
-    over byte-array>memory ;
-
-: (make-vtbls) ( implementations -- vtbls )
-    dup [ first ] map (make-iunknown-methods)
-    [ >r >r first2 r> r> swap (make-vtbl) ] curry map-index ;
-
-: (malloc-wrapped-object) ( wrapper -- wrapped-object )
-    vtbls>> length "void*" heap-size *
-    [ "ulong" heap-size + malloc ] keep
-    over <displaced-alien>
-    1 0 rot set-ulong-nth ;
-
-PRIVATE>
-
-: <com-wrapper> ( implementations -- wrapper )
-    (make-vtbls) f com-wrapper boa ;
-
-M: com-wrapper dispose
-    t >>freed?
-    vtbls>> [ free ] each ;
-
-: com-wrap ( object wrapper -- wrapped-object )
-    dup (malloc-wrapped-object) >r vtbls>> r>
-    [ [ set-void*-nth ] curry each-index ] keep
-    [ +wrapped-objects+ get-global set-at ] keep ;
diff --git a/extra/wordtimer/authors.txt b/extra/wordtimer/authors.txt
new file mode 100644
index 0000000000..0be42b2faa
--- /dev/null
+++ b/extra/wordtimer/authors.txt
@@ -0,0 +1 @@
+Phil Dawes
diff --git a/extra/wordtimer/summary.txt b/extra/wordtimer/summary.txt
new file mode 100644
index 0000000000..efe591da27
--- /dev/null
+++ b/extra/wordtimer/summary.txt
@@ -0,0 +1 @@
+Microsecond precision code timer/profiler.
diff --git a/extra/wordtimer/wordtimer-docs.factor b/extra/wordtimer/wordtimer-docs.factor
new file mode 100644
index 0000000000..cfe6cfea49
--- /dev/null
+++ b/extra/wordtimer/wordtimer-docs.factor
@@ -0,0 +1,47 @@
+USING: help.syntax help.markup kernel prettyprint sequences
+quotations words strings ;
+IN: wordtimer
+
+HELP: reset-word-timer
+{ $description "resets the global wordtimes datastructure. Must be called before calling any word-timer annotated code"
+} ;
+
+HELP: add-timer
+{ $values { "word" word } } 
+{ $description "annotates the word with timing code which stores timing information globally. You can then view the info with print-word-timings"
+} ;
+
+HELP: add-timers
+{ $values { "vocab" string } } 
+{ $description "annotates all the words in the vocab with timer code. After profiling you can remove the annotations with reset-vocab"
+} ;
+
+
+HELP: reset-vocab
+{ $values { "vocab" string } } 
+{ $description "removes the annotations from all the words in the vocab"
+} ;
+
+HELP: print-word-timings
+{ $description "Displays the timing information for each word-timer annotated word. Columns are: total time taken in microseconds, number of invocations, wordname"
+} ;
+
+HELP: correct-for-timing-overhead
+{ $description "attempts to correct the timings to take into account the overhead of the timing function. This is pretty error-prone but can be handy when you're timing words that only take a handful of milliseconds but are called a lot" } ;
+
+HELP: profile-vocab
+{ $values { "vocab" string }
+          { "quot" "a quotation to run" } }
+{ $description "Annotates the words in the vocab with timing code then runs the quotation. Finally resets the words and prints the timings information."
+} ;
+
+HELP: wordtimer-call
+{ $values { "quot" quotation } }
+{ $description "Resets the wordtimer hash and runs the quotation. After the quotation has run it prints out the timed words"
+} ;
+
+    
+ARTICLE: "wordtimer" "Word Timer"
+"The " { $vocab-link "wordtimer" } " vocabulary measures accumulated execution time for words. If you just want to profile the accumulated time taken by all words in a vocab you can use " { $vocab-link "profile-vocab" } ". If you need more fine grained control then do the following: First annotate individual words with the " { $link add-timer } " word or whole vocabularies with " { $link add-timers } ". Then use " { $link wordtimer-call } " to invoke a quotation and print out the timings." ;
+    
+ABOUT: "wordtimer"
diff --git a/extra/wordtimer/wordtimer-tests.factor b/extra/wordtimer/wordtimer-tests.factor
new file mode 100644
index 0000000000..47287179ce
--- /dev/null
+++ b/extra/wordtimer/wordtimer-tests.factor
@@ -0,0 +1,10 @@
+USING: tools.test wordtimer math kernel tools.annotations prettyprint ;
+IN: wordtimer.tests
+
+: testfn ( a b c d -- a+b c+d )
+  + [ + ] dip ;
+    
+[ 3 7 ]
+[ reset-word-timer
+  \ testfn [ reset ] [ add-timer ] bi
+  1 2 3 4 testfn ] unit-test
\ No newline at end of file
diff --git a/extra/wordtimer/wordtimer.factor b/extra/wordtimer/wordtimer.factor
new file mode 100644
index 0000000000..5dc65c661b
--- /dev/null
+++ b/extra/wordtimer/wordtimer.factor
@@ -0,0 +1,87 @@
+USING: kernel sequences namespaces math assocs words arrays tools.annotations vocabs sorting prettyprint io micros math.statistics accessors ;
+IN: wordtimer
+
+SYMBOL: *wordtimes*
+SYMBOL: *calling*
+
+: reset-word-timer ( -- ) 
+  H{ } clone *wordtimes* set-global
+  H{ } clone *calling* set-global ;
+    
+: lookup-word-time ( wordname -- utime n )
+  *wordtimes* get-global [ drop { 0 0 } ] cache first2 ;
+
+: update-times ( utime current-utime current-numinvokes -- utime' invokes' )
+  rot [ + ] curry [ 1+ ] bi* ;
+
+: register-time ( utime word -- )
+  name>>
+  [ lookup-word-time update-times 2array ] keep *wordtimes* get-global set-at ;
+
+: calling ( word -- )
+  dup *calling* get-global set-at ; inline
+
+: finished ( word -- )
+  *calling* get-global delete-at ; inline
+
+: called-recursively? ( word -- t/f )
+  *calling* get-global at ; inline
+    
+: timed-call ( quot word -- )
+  [ calling ] [ >r micro-time r> register-time ] [ finished ] tri ; inline
+
+: time-unless-recursing ( quot word -- )
+  dup called-recursively? not
+  [ timed-call ] [ drop call ] if ; inline
+    
+: (add-timer) ( word quot -- quot' )
+  [ swap time-unless-recursing ] 2curry ; 
+
+: add-timer ( word -- )
+  dup [ (add-timer) ] annotate ;
+
+: add-timers ( vocab -- )
+  words [ add-timer ] each ;
+
+: reset-vocab ( vocab -- )
+  words [ reset ] each ;
+
+: dummy-word ( -- ) ;
+
+: time-dummy-word ( -- n )
+  [ 100000 [ [ dummy-word ] micro-time , ] times ] { } make median ;
+
+: subtract-overhead ( {oldtime,n} overhead -- {newtime,n} )
+  [ first2 ] dip
+  swap [ * - ] keep 2array ;
+  
+: change-global ( variable quot -- )
+  global swap change-at ;
+
+: (correct-for-timing-overhead) ( timingshash -- timingshash )
+  time-dummy-word [ subtract-overhead ] curry assoc-map ;  
+
+: correct-for-timing-overhead ( -- )
+  *wordtimes* [ (correct-for-timing-overhead) ] change-global ;
+    
+: print-word-timings ( -- )
+  *wordtimes* get-global [ swap suffix ] { } assoc>map natural-sort reverse pprint ;
+
+: wordtimer-call ( quot -- )
+  reset-word-timer 
+  [ call ] micro-time >r
+  correct-for-timing-overhead
+  "total time:" write r> pprint nl
+  print-word-timings nl ;
+
+: profile-vocab ( vocab quot -- )
+  "annotating vocab..." print flush
+  over [ reset-vocab ] [ add-timers ] bi
+  reset-word-timer
+  "executing quotation..." print flush
+  [ call ] micro-time >r
+  "resetting annotations..." print flush
+  reset-vocab
+  correct-for-timing-overhead
+  "total time:" write r> pprint
+  print-word-timings ;
diff --git a/extra/x/widgets/wm/frame/frame.factor b/extra/x/widgets/wm/frame/frame.factor
index b75671fa3c..d20c5bf672 100755
--- a/extra/x/widgets/wm/frame/frame.factor
+++ b/extra/x/widgets/wm/frame/frame.factor
@@ -4,7 +4,7 @@ USING: kernel io combinators namespaces quotations arrays sequences
        x11.xlib x11.constants
        mortar mortar.sugar slot-accessors
        geom.rect
-       math.bitfields
+       math.bitwise
        x x.gc x.widgets
        x.widgets.button
        x.widgets.wm.child
diff --git a/extra/x/widgets/wm/workspace/workspace.factor b/extra/x/widgets/wm/workspace/workspace.factor
index 104021706f..c11ad7e04d 100644
--- a/extra/x/widgets/wm/workspace/workspace.factor
+++ b/extra/x/widgets/wm/workspace/workspace.factor
@@ -1,5 +1,6 @@
 
-USING: kernel namespaces namespaces.lib math sequences vars mortar slot-accessors x ;
+USING: kernel namespaces namespaces.lib math sequences vars mortar
+accessors slot-accessors x ;
 
 IN: x.widgets.wm.workspace
 
@@ -23,9 +24,9 @@ dpy get $default-root <- children [ <- mapped? ] filter ;
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : switch-to-workspace ( n -- )
-mapped-windows current-workspace> workspaces> nth set-workspace-windows
+mapped-windows current-workspace> workspaces> nth (>>windows)
 mapped-windows [ <- unmap drop ] each
-dup workspaces> nth workspace-windows [ <- map drop ] each
+dup workspaces> nth windows>> [ <- map drop ] each
 current-workspace set* ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
diff --git a/extra/x11/tags.txt b/extra/x11/tags.txt
deleted file mode 100644
index bb863cf9a0..0000000000
--- a/extra/x11/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-bindings
diff --git a/extra/x11/xim/tags.txt b/extra/x11/xim/tags.txt
deleted file mode 100644
index bb863cf9a0..0000000000
--- a/extra/x11/xim/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-bindings
diff --git a/extra/x11/xlib/authors.txt b/extra/x11/xlib/authors.txt
deleted file mode 100644
index 6cfd5da273..0000000000
--- a/extra/x11/xlib/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Eduardo Cavazos
diff --git a/extra/x11/xlib/tags.txt b/extra/x11/xlib/tags.txt
deleted file mode 100644
index bb863cf9a0..0000000000
--- a/extra/x11/xlib/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-bindings
diff --git a/extra/xml/generator/generator-tests.factor b/extra/xml/generator/generator-tests.factor
deleted file mode 100644
index d44b713e55..0000000000
--- a/extra/xml/generator/generator-tests.factor
+++ /dev/null
@@ -1,3 +0,0 @@
-USING: tools.test io.streams.string xml.generator xml.writer ;
-[ "<html><body><a href=\"blah\"/></body></html>" ]
-[ "html" [ "body" [ "a" { { "href" "blah" } } contained*, ] tag, ] make-xml [ write-item ] with-string-writer ] unit-test
diff --git a/extra/xml/generator/generator.factor b/extra/xml/syntax/syntax.factor
similarity index 56%
rename from extra/xml/generator/generator.factor
rename to extra/xml/syntax/syntax.factor
index 44bd1934f8..6b765461e5 100644
--- a/extra/xml/generator/generator.factor
+++ b/extra/xml/syntax/syntax.factor
@@ -1,33 +1,12 @@
-! Copyright (C) 2006, 2007 Daniel Ehrenberg
+! Copyright (C) 2008 Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces kernel xml.data xml.utilities assocs splitting
-sequences parser quotations sequences.lib xml.utilities ;
-IN: xml.generator
+USING: lexer parser splitting kernel quotations namespaces
+sequences assocs sequences.lib xml.generator xml.utilities
+xml.data ;
+IN: xml.syntax
 
-: comment, ( string -- ) <comment> , ;
-: directive, ( string -- ) <directive> , ;
-: instruction, ( string -- ) <instruction> , ;
-: nl, ( -- ) "\n" , ;
-
-: (tag,) ( name attrs quot -- tag )
-    -rot >r >r V{ } make r> r> rot <tag> ; inline
-: tag*, ( name attrs quot -- )
-    (tag,) , ; inline
-
-: contained*, ( name attrs -- )
-    f <tag> , ;
-
-: tag, ( name quot -- ) f swap tag*, ; inline
-: contained, ( name -- ) f contained*, ; inline
-
-: make-xml* ( name attrs quot -- xml )
-    (tag,) build-xml ; inline
-: make-xml ( name quot -- xml )
-    f swap make-xml* ; inline
-
-! Word-based XML literal syntax
 : parsed-name ( accum -- accum )
-    scan ":" split1 [ f <name> ] [ <name-tag> ] if* parsed ;
+    scan ":" split1 [ f <name> ] [ <simple-name> ] if* parsed ;
 
 : run-combinator ( accum quot1 quot2 -- accum )
     >r [ ] like parsed r> [ parsed ] each ;
@@ -36,16 +15,16 @@ IN: xml.generator
     [ \ contained*, parsed ] [
         scan-word \ [ =
         [ POSTPONE: [ \ tag*, parsed ]
-        [ "Expected [ missing" <parse-error> throw ] if
+        [ "Expected [ missing" throw ] if
     ] if ;
 
 DEFER: >>
 
 : attributes-parsed ( accum quot -- accum )
-    dup empty? [ drop f parsed ] [
+    [ f parsed ] [
         >r \ >r parsed r> parsed
         [ H{ } make-assoc r> swap ] [ parsed ] each
-    ] if ;
+    ] if-empty ;
 
 : <<
     parsed-name [
diff --git a/extra/xmode/keyword-map/keyword-map.factor b/extra/xmode/keyword-map/keyword-map.factor
deleted file mode 100644
index f786209865..0000000000
--- a/extra/xmode/keyword-map/keyword-map.factor
+++ /dev/null
@@ -1,37 +0,0 @@
-USING: kernel strings assocs sequences hashtables sorting
-       unicode.case unicode.categories sets ;
-IN: xmode.keyword-map
-
-! Based on org.gjt.sp.jedit.syntax.KeywordMap
-TUPLE: keyword-map no-word-sep ignore-case? ;
-
-: <keyword-map> ( ignore-case? -- map )
-    H{ } clone { set-keyword-map-ignore-case? set-delegate }
-    keyword-map construct ;
-
-: invalid-no-word-sep f swap set-keyword-map-no-word-sep ;
-
-: handle-case ( key keyword-map -- key assoc )
-    [ keyword-map-ignore-case? [ >upper ] when ] keep
-    delegate ;
-
-M: keyword-map at* handle-case at* ;
-
-M: keyword-map set-at
-    [ handle-case set-at ] keep invalid-no-word-sep ;
-
-M: keyword-map clear-assoc
-    [ delegate clear-assoc ] keep invalid-no-word-sep ;
-
-M: keyword-map >alist delegate >alist ;
-
-: (keyword-map-no-word-sep)
-    keys concat [ alpha? not ] filter prune natural-sort ;
-
-: keyword-map-no-word-sep* ( keyword-map -- str )
-    dup keyword-map-no-word-sep [ ] [
-        dup (keyword-map-no-word-sep)
-        dup rot set-keyword-map-no-word-sep
-    ] ?if ;
-
-INSTANCE: keyword-map assoc
diff --git a/extra/yahoo/tags.txt b/extra/yahoo/tags.txt
index 2675462a84..c0772185a0 100644
--- a/extra/yahoo/tags.txt
+++ b/extra/yahoo/tags.txt
@@ -1,2 +1 @@
-demos
 web
diff --git a/extra/yahoo/yahoo-docs.factor b/extra/yahoo/yahoo-docs.factor
index b5603103e1..1758d62029 100644
--- a/extra/yahoo/yahoo-docs.factor
+++ b/extra/yahoo/yahoo-docs.factor
@@ -2,5 +2,5 @@ USING: help.syntax help.markup ;
 IN: yahoo
 
 HELP: search-yahoo
-{ $values { "search" "a string" } { "num" "a positive integer" } { "seq" "sequence of arrays of length 3" } }
-{ $description "Uses Yahoo's REST API to search for the query specified in the search string, getting the number of answers specified. Returns a sequence of 3arrays, { title url summary }, each of which is a string." } ;
+{ $values { "search" search } { "seq" "sequence of arrays of length 3" } }
+{ $description "Uses Yahoo's REST API to search for the specified query, getting the number of answers specified. Returns a sequence of " { $link result } " instances." } ;
diff --git a/extra/yahoo/yahoo.factor b/extra/yahoo/yahoo.factor
index c47b8be15c..d163c8f1ac 100755
--- a/extra/yahoo/yahoo.factor
+++ b/extra/yahoo/yahoo.factor
@@ -59,4 +59,4 @@ format similar-ok language country site subscription license ;
         swap >>query ;
 
 : search-yahoo ( search -- seq )
-    query http-get string>xml parse-yahoo ;
+    query http-get nip string>xml parse-yahoo ;
diff --git a/misc/factor.el b/misc/factor.el
index 9d90fb68f9..5c9d050468 100644
--- a/misc/factor.el
+++ b/misc/factor.el
@@ -29,6 +29,12 @@
 (defvar factor-mode-syntax-table nil
   "Syntax table used while in Factor mode.")
 
+(defcustom factor-display-compilation-output t
+  "Display the REPL buffer before compiling files."
+  :type '(choice (const :tag "Enable" t) (const :tag "Disable" nil))
+  :group 'factor)
+
+
 (if factor-mode-syntax-table
     ()
   (let ((i 0))
@@ -94,6 +100,10 @@
     "SYMBOLS:"
 ))
 
+(defun factor-indent-line ()
+  "Indent current line as Factor code"
+  (indent-line-to (+ (current-indentation) 4)))
+
 (defun factor-mode ()
   "A mode for editing programs written in the Factor programming language."
   (interactive)
@@ -107,6 +117,8 @@
   (setq font-lock-defaults
 	'(factor-font-lock-keywords nil nil nil nil))
   (set-syntax-table factor-mode-syntax-table)
+  (make-local-variable 'indent-line-function)
+  (setq indent-line-function 'factor-indent-line)
   (run-hooks 'factor-mode-hook))
 
 (add-to-list 'auto-mode-alist '("\\.factor\\'" . factor-mode))
@@ -133,9 +145,20 @@
 
 (defun factor-run-file ()
   (interactive)
+  (when (and (buffer-modified-p)
+			 (y-or-n-p (format "Save file %s? " (buffer-file-name))))
+	(save-buffer))
+  (when factor-display-compilation-output
+	(factor-display-output-buffer))
   (comint-send-string "*factor*" (format "\"%s\"" (buffer-file-name)))
   (comint-send-string "*factor*" " run-file\n"))
 
+(defun factor-display-output-buffer ()
+  (with-current-buffer "*factor*"
+	(goto-char (point-max))
+	(unless (get-buffer-window (current-buffer) t)
+	  (display-buffer (current-buffer) t))))
+
 ;; (defun factor-send-region (start end)
 ;;   (interactive "r")
 ;;   (comint-send-region "*factor*" start end)
diff --git a/unfinished/compiler/cfg/alias/alias.factor b/unfinished/compiler/cfg/alias/alias.factor
new file mode 100644
index 0000000000..0ed0b49cc0
--- /dev/null
+++ b/unfinished/compiler/cfg/alias/alias.factor
@@ -0,0 +1,293 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math namespaces assocs hashtables sequences
+accessors vectors combinators sets compiler.vops compiler.cfg ;
+IN: compiler.cfg.alias
+
+! Alias analysis -- must be run after compiler.cfg.stack.
+!
+! We try to eliminate redundant slot and stack
+! traffic using some simple heuristics.
+! 
+! All heap-allocated objects which are loaded from the stack, or
+! other object slots are pessimistically assumed to belong to
+! the same alias class.
+!
+! Freshly-allocated objects get their own alias class.
+!
+! The data and retain stack pointer registers are treated
+! uniformly, and each one gets its own alias class.
+! 
+! Simple pseudo-C example showing load elimination:
+! 
+! int *x, *y, z: inputs
+! int a, b, c, d, e: locals
+! 
+! Before alias analysis:
+!
+! a = x[2]
+! b = x[2]
+! c = x[3]
+! y[2] = z
+! d = x[2]
+! e = y[2]
+! f = x[3]
+!
+! After alias analysis:
+!
+! a = x[2]
+! b = a /* ELIMINATED */
+! c = x[3]
+! y[2] = z
+! d = x[2] /* if x=y, d=z, if x!=y, d=b; NOT ELIMINATED */
+! e = z /* ELIMINATED */
+! f = c /* ELIMINATED */
+!
+! Simple pseudo-C example showing store elimination:
+!
+! Before alias analysis:
+!
+! x[0] = a
+! b = x[n]
+! x[0] = c
+! x[1] = d
+! e = x[0]
+! x[1] = c
+!
+! After alias analysis:
+!
+! x[0] = a /* dead if n = 0, live otherwise; NOT ELIMINATED */
+! b = x[n]
+! x[0] = c
+! /* x[1] = d */  /* ELIMINATED */
+! e = c
+! x[1] = c
+
+! Map vregs -> alias classes
+SYMBOL: vregs>acs
+
+: check [ "BUG: static type error detected" throw ] unless* ; inline
+ 
+: vreg>ac ( vreg -- ac )
+    #! Only vregs produced by %%allot, %peek and %%slot can
+    #! ever be used as valid inputs to %%slot and %%set-slot,
+    #! so we assert this fact by not giving alias classes to
+    #! other vregs.
+    vregs>acs get at check ;
+
+! Map alias classes -> sequence of vregs
+SYMBOL: acs>vregs
+
+: ac>vregs ( ac -- vregs ) acs>vregs get at ;
+
+: aliases ( vreg -- vregs )
+    #! All vregs which may contain the same value as vreg.
+    vreg>ac ac>vregs ;
+
+: each-alias ( vreg quot -- )
+    [ aliases ] dip each ; inline
+
+! Map vregs -> slot# -> vreg
+SYMBOL: live-slots
+
+! Current instruction number
+SYMBOL: insn#
+
+! Load/store history, for dead store elimination
+TUPLE: load insn# ;
+TUPLE: store insn# ;
+
+: new-action ( class -- action )
+    insn# get swap boa ; inline
+
+! Maps vreg -> slot# -> sequence of loads/stores
+SYMBOL: histories
+
+: history ( vreg -- history ) histories get at ;
+
+: set-ac ( vreg ac -- )
+    #! Set alias class of newly-seen vreg.
+    {
+        [ drop H{ } clone swap histories get set-at ]
+        [ drop H{ } clone swap live-slots get set-at ]
+        [ swap vregs>acs get set-at ]
+        [ acs>vregs get push-at ]
+    } 2cleave ;
+
+: live-slot ( slot#/f vreg -- vreg' )
+    #! If the slot number is unknown, we never reuse a previous
+    #! value.
+    over [ live-slots get at at ] [ 2drop f ] if ;
+
+: load-constant-slot ( value slot# vreg -- )
+    live-slots get at check set-at ;
+
+: load-slot ( value slot#/f vreg -- )
+    over [ load-constant-slot ] [ 3drop ] if ;
+
+: record-constant-slot ( slot# vreg -- )
+    #! A load can potentially read every store of this slot#
+    #! in that alias class.
+    [
+        history [ load new-action swap ?push ] change-at
+    ] with each-alias ;
+
+: record-computed-slot ( vreg -- )
+    #! Computed load is like a load of every slot touched so far
+    [
+        history values [ load new-action swap push ] each
+    ] each-alias ;
+
+: remember-slot ( value slot#/f vreg -- )
+    over
+    [ [ record-constant-slot ] [ load-constant-slot ] 2bi ]
+    [ 2nip record-computed-slot ] if ;
+
+SYMBOL: ac-counter
+
+: next-ac ( -- n )
+    ac-counter [ dup 1+ ] change ;
+
+! Alias class for objects which are loaded from the data stack
+! or other object slots. We pessimistically assume that they
+! can all alias each other.
+SYMBOL: heap-ac
+
+: set-heap-ac ( vreg -- ) heap-ac get set-ac ;
+
+: set-new-ac ( vreg -- ) next-ac set-ac ;
+
+: kill-constant-set-slot ( slot# vreg -- )
+    [ live-slots get at delete-at ] with each-alias ;
+
+: record-constant-set-slot ( slot# vreg -- )
+    history [
+        dup empty? [ dup peek store? [ dup pop* ] when ] unless
+        store new-action swap ?push
+    ] change-at ;
+
+: kill-computed-set-slot ( ac -- )
+    [ live-slots get at clear-assoc ] each-alias ;
+
+: remember-set-slot ( slot#/f vreg -- )
+    over [
+        [ record-constant-set-slot ]
+        [ kill-constant-set-slot ] 2bi
+    ] [ nip kill-computed-set-slot ] if ;
+
+SYMBOL: copies
+
+: resolve ( vreg -- vreg )
+    dup copies get at swap or ;
+
+SYMBOL: constants
+
+: constant ( vreg -- n/f )
+    #! Return an %iconst value, or f if the vreg was not
+    #! assigned by an %iconst.
+    resolve constants get at ;
+
+! We treat slot accessors and stack traffic alike
+GENERIC: insn-slot# ( insn -- slot#/f )
+GENERIC: insn-object ( insn -- vreg )
+
+M: %peek insn-slot# n>> ;
+M: %replace insn-slot# n>> ;
+M: %%slot insn-slot# slot>> constant ;
+M: %%set-slot insn-slot# slot>> constant ;
+
+M: %peek insn-object stack>> ;
+M: %replace insn-object stack>> ;
+M: %%slot insn-object obj>> resolve ;
+M: %%set-slot insn-object obj>> resolve ;
+
+: init-alias-analysis ( -- )
+    H{ } clone histories set
+    H{ } clone vregs>acs set
+    H{ } clone acs>vregs set
+    H{ } clone live-slots set
+    H{ } clone constants set
+    H{ } clone copies set
+
+    0 ac-counter set
+    next-ac heap-ac set
+
+    %data next-ac set-ac
+    %retain next-ac set-ac ;
+
+GENERIC: analyze-aliases ( insn -- insn' )
+
+M: %iconst analyze-aliases
+    dup [ value>> ] [ out>> ] bi constants get set-at ;
+
+M: %%allot analyze-aliases
+    #! A freshly allocated object is distinct from any other
+    #! object.
+    dup out>> set-new-ac ;
+
+M: read-op analyze-aliases
+    dup out>> set-heap-ac
+    dup [ out>> ] [ insn-slot# ] [ insn-object ] tri
+    2dup live-slot dup [
+        2nip %copy boa analyze-aliases nip
+    ] [
+        drop remember-slot
+    ] if ;
+
+: idempotent? ( value slot#/f vreg -- ? )
+    #! Are we storing a value back to the same slot it was read
+    #! from?
+    live-slot = ;
+
+M: write-op analyze-aliases
+    dup
+    [ in>> resolve ] [ insn-slot# ] [ insn-object ] tri
+    3dup idempotent? [
+        2drop 2drop nop
+    ] [
+        [ remember-set-slot drop ] [ load-slot ] 3bi
+    ] if ;
+
+M: %copy analyze-aliases
+    #! The output vreg gets the same alias class as the input
+    #! vreg, since they both contain the same value.
+    dup [ in>> resolve ] [ out>> ] bi copies get set-at ;
+
+M: vop analyze-aliases ;
+
+SYMBOL: live-stores
+
+: compute-live-stores ( -- )
+    histories get
+    values [
+        values [ [ store? ] filter [ insn#>> ] map ] map concat
+    ] map concat unique
+    live-stores set ;
+
+GENERIC: eliminate-dead-store ( insn -- insn' )
+
+: (eliminate-dead-store) ( insn -- insn' )
+    dup insn-slot# [
+        insn# get live-stores get key? [
+            drop nop
+        ] unless
+    ] when ;
+
+M: %replace eliminate-dead-store
+    #! Writes to above the top of the stack can be pruned also.
+    #! This is sound since any such writes are not observable
+    #! after the basic block, and any reads of those locations
+    #! will have been converted to copies by analyze-slot,
+    #! and the final stack height of the basic block is set at
+    #! the beginning by compiler.cfg.stack.
+    dup n>> 0 < [ drop nop ] [ (eliminate-dead-store) ] if ;
+
+M: %%set-slot eliminate-dead-store (eliminate-dead-store) ;
+
+M: vop eliminate-dead-store ;
+
+: alias-analysis ( insns -- insns' )
+    init-alias-analysis
+    [ insn# set analyze-aliases ] map-index
+    compute-live-stores
+    [ insn# set eliminate-dead-store ] map-index ;
diff --git a/unfinished/compiler/cfg/authors.txt b/unfinished/compiler/cfg/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/unfinished/compiler/cfg/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/unfinished/compiler/cfg/builder/builder-tests.factor b/unfinished/compiler/cfg/builder/builder-tests.factor
new file mode 100644
index 0000000000..098919c868
--- /dev/null
+++ b/unfinished/compiler/cfg/builder/builder-tests.factor
@@ -0,0 +1,4 @@
+IN: compiler.cfg.builder.tests
+USING: compiler.cfg.builder tools.test ;
+
+\ build-cfg must-infer
diff --git a/unfinished/compiler/cfg/builder/builder.factor b/unfinished/compiler/cfg/builder/builder.factor
new file mode 100644
index 0000000000..76a1b67dd2
--- /dev/null
+++ b/unfinished/compiler/cfg/builder/builder.factor
@@ -0,0 +1,256 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays kernel assocs sequences sequences.lib fry accessors
+namespaces math combinators math.order
+compiler.tree
+compiler.tree.combinators
+compiler.tree.propagation.info
+compiler.cfg
+compiler.vops
+compiler.vops.builder ;
+IN: compiler.cfg.builder
+
+! Convert tree SSA IR to CFG SSA IR.
+
+! We construct the graph and set successors first, then we
+! set predecessors in a separate pass. This simplifies the
+! logic.
+
+SYMBOL: procedures
+
+SYMBOL: loop-nesting
+
+SYMBOL: values>vregs
+
+GENERIC: convert ( node -- )
+
+M: #introduce convert drop ;
+
+: init-builder ( -- )
+    H{ } clone values>vregs set ;
+
+: end-basic-block ( -- )
+    basic-block get [ %b emit ] when ;
+
+: set-basic-block ( basic-block -- )
+    [ basic-block set ] [ instructions>> building set ] bi ;
+
+: begin-basic-block ( -- )
+    <basic-block> basic-block get
+    [
+        end-basic-block
+        dupd successors>> push
+    ] when*
+    set-basic-block ;
+
+: convert-nodes ( node -- )
+    [ convert ] each ;
+
+: (build-cfg) ( node word -- )
+    init-builder
+    begin-basic-block
+    basic-block get swap procedures get set-at
+    convert-nodes ;
+
+: build-cfg ( node word -- procedures )
+    H{ } clone [
+        procedures [ (build-cfg) ] with-variable
+    ] keep ;
+
+: value>vreg ( value -- vreg )
+    values>vregs get at ;
+
+: output-vreg ( value vreg -- )
+    swap values>vregs get set-at ;
+
+: produce-vreg ( value -- vreg )
+    next-vreg [ output-vreg ] keep ;
+
+: (load-inputs) ( seq stack -- )
+    over empty? [ 2drop ] [
+        [ <reversed> ] dip
+        [ '[ produce-vreg _ , %peek emit ] each-index ]
+        [ [ length neg ] dip %height emit ]
+        2bi
+    ] if ;
+
+: load-in-d ( node -- ) in-d>> %data (load-inputs) ;
+
+: load-in-r ( node -- ) in-r>> %retain (load-inputs) ;
+
+: (store-outputs) ( seq stack -- )
+    over empty? [ 2drop ] [
+        [ <reversed> ] dip
+        [ [ length ] dip %height emit ]
+        [ '[ value>vreg _ , %replace emit ] each-index ]
+        2bi
+    ] if ;
+
+: store-out-d ( node -- ) out-d>> %data (store-outputs) ;
+
+: store-out-r ( node -- ) out-r>> %retain (store-outputs) ;
+
+: (emit-call) ( word -- )
+    begin-basic-block %call emit begin-basic-block ;
+
+: intrinsic-inputs ( node -- )
+    [ load-in-d ]
+    [ in-d>> { #1 #2 #3 #4 } [ [ value>vreg ] dip set ] 2each ]
+    bi ;
+
+: intrinsic-outputs ( node -- )
+    [ out-d>> { ^1 ^2 ^3 ^4 } [ get output-vreg ] 2each ]
+    [ store-out-d ]
+    bi ;
+
+: intrinsic ( node quot -- )
+    [
+        init-intrinsic
+
+        [ intrinsic-inputs ]
+        swap
+        [ intrinsic-outputs ]
+        tri
+    ] with-scope ; inline
+
+USING: kernel.private math.private slots.private ;
+
+: maybe-emit-fixnum-shift-fast ( node -- node )
+    dup dup in-d>> second node-value-info literal>> dup fixnum? [
+        '[ , emit-fixnum-shift-fast ] intrinsic
+    ] [
+        drop dup word>> (emit-call)
+    ] if ;
+
+: emit-call ( node -- )
+    dup word>> {
+        { \ tag [ [ emit-tag ] intrinsic ] }
+
+        { \ slot [ [ dup emit-slot ] intrinsic ] }
+        { \ set-slot [ [ dup emit-set-slot ] intrinsic ] }
+
+        { \ fixnum-bitnot [ [ emit-fixnum-bitnot ] intrinsic ] }
+        { \ fixnum+fast [ [ emit-fixnum+fast ] intrinsic ] }
+        { \ fixnum-fast [ [ emit-fixnum-fast ] intrinsic ] }
+        { \ fixnum-bitand [ [ emit-fixnum-bitand ] intrinsic ] }
+        { \ fixnum-bitor [ [ emit-fixnum-bitor ] intrinsic ] }
+        { \ fixnum-bitxor [ [ emit-fixnum-bitxor ] intrinsic ] }
+        { \ fixnum*fast [ [ emit-fixnum*fast ] intrinsic ] }
+        { \ fixnum<= [ [ emit-fixnum<= ] intrinsic ] }
+        { \ fixnum>= [ [ emit-fixnum>= ] intrinsic ] }
+        { \ fixnum< [ [ emit-fixnum< ] intrinsic ] }
+        { \ fixnum> [ [ emit-fixnum> ] intrinsic ] }
+        { \ eq? [ [ emit-eq? ] intrinsic ] }
+
+        { \ fixnum-shift-fast [ maybe-emit-fixnum-shift-fast ] }
+
+        { \ float+ [ [ emit-float+ ] intrinsic ] }
+        { \ float- [ [ emit-float- ] intrinsic ] }
+        { \ float* [ [ emit-float* ] intrinsic ] }
+        { \ float/f [ [ emit-float/f ] intrinsic ] }
+        { \ float<= [ [ emit-float<= ] intrinsic ] }
+        { \ float>= [ [ emit-float>= ] intrinsic ] }
+        { \ float< [ [ emit-float< ] intrinsic ] }
+        { \ float> [ [ emit-float> ] intrinsic ] }
+        { \ float? [ [ emit-float= ] intrinsic ] }
+
+        ! { \ (tuple) [ dup first-input '[ , emit-(tuple) ] intrinsic ] }
+        ! { \ (array) [ dup first-input '[ , emit-(array) ] intrinsic ] }
+        ! { \ (byte-array) [ dup first-input '[ , emit-(byte-array) ] intrinsic ] }
+
+        [ (emit-call) ]
+    } case drop ;
+
+M: #call convert emit-call ;
+
+: emit-call-loop ( #recursive -- )
+    dup label>> loop-nesting get at basic-block get successors>> push
+    end-basic-block
+    basic-block off
+    drop ;
+
+: emit-call-recursive ( #recursive -- )
+    label>> id>> (emit-call) ;
+
+M: #call-recursive convert
+    dup label>> loop?>>
+    [ emit-call-loop ] [ emit-call-recursive ] if ;
+
+M: #push convert
+    [
+        [ out-d>> first produce-vreg ]
+        [ node-output-infos first literal>> ]
+        bi emit-literal
+    ]
+    [ store-out-d ] bi ;
+
+M: #shuffle convert [ load-in-d ] [ store-out-d ] bi ;
+
+M: #>r convert [ load-in-d ] [ store-out-r ] bi ;
+
+M: #r> convert [ load-in-r ] [ store-out-d ] bi ;
+
+M: #terminate convert drop ;
+
+: integer-conditional ( in1 in2 cc -- )
+    [ [ next-vreg dup ] 2dip %icmp emit ] dip %bi emit ; inline
+
+: float-conditional ( in1 in2 branch -- )
+    [ next-vreg [ %fcmp emit ] keep ] dip emit ; inline
+
+: emit-if ( #if -- )
+    in-d>> first value>vreg
+    next-vreg dup f emit-literal
+    cc/= integer-conditional ;
+
+: convert-nested ( node -- last-bb )
+    [
+        <basic-block>
+        [ set-basic-block ] keep
+        [ convert-nodes end-basic-block ] dip
+        basic-block get
+    ] with-scope
+    [ basic-block get successors>> push ] dip ;
+
+: convert-if-children ( #if -- )
+    children>> [ convert-nested ] map sift
+    <basic-block>
+    [ '[ , _ successors>> push ] each ]
+    [ set-basic-block ]
+    bi ;
+
+M: #if convert
+    [ load-in-d ] [ emit-if ] [ convert-if-children ] tri ;
+
+M: #dispatch convert
+    "Unimplemented" throw ;
+
+M: #phi convert drop ;
+
+M: #declare convert drop ;
+
+M: #return convert drop %return emit ;
+
+: convert-recursive ( #recursive -- )
+    [ [ label>> id>> ] [ child>> ] bi (build-cfg) ]
+    [ (emit-call) ]
+    bi ;
+
+: begin-loop ( #recursive -- )
+    label>> basic-block get 2array loop-nesting get push ;
+
+: end-loop ( -- )
+    loop-nesting get pop* ;
+
+: convert-loop ( #recursive -- )
+    begin-basic-block
+    [ begin-loop ]
+    [ child>> convert-nodes ]
+    [ drop end-loop ]
+    tri ;
+
+M: #recursive convert
+    dup label>> loop?>>
+    [ convert-loop ] [ convert-recursive ] if ;
+
+M: #copy convert drop ;
diff --git a/unfinished/compiler/cfg/cfg.factor b/unfinished/compiler/cfg/cfg.factor
new file mode 100644
index 0000000000..ae14f3e009
--- /dev/null
+++ b/unfinished/compiler/cfg/cfg.factor
@@ -0,0 +1,47 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors namespaces assocs sequences sets fry ;
+IN: compiler.cfg
+
+! The id is a globally unique id used for fast hashcode* and
+! equal? on basic blocks. The number is assigned by
+! linearization.
+TUPLE: basic-block < identity-tuple
+id
+number
+instructions
+successors
+predecessors
+stack-frame ;
+
+SYMBOL: next-block-id
+
+: <basic-block> ( -- basic-block )
+    basic-block new
+        next-block-id counter >>id
+        V{ } clone >>instructions
+        V{ } clone >>successors
+        V{ } clone >>predecessors ;
+
+M: basic-block hashcode* id>> nip ;
+
+! Utilities
+SYMBOL: visited-blocks
+
+: visit-block ( basic-block quot -- )
+    over visited-blocks get 2dup key?
+    [ 2drop 2drop ] [ conjoin call ] if ; inline
+
+: (each-block) ( basic-block quot -- )
+    '[
+        ,
+        [ call ]
+        [ [ successors>> ] dip '[ , (each-block) ] each ]
+        2bi
+    ] visit-block ; inline
+
+: each-block ( basic-block quot -- )
+    H{ } clone visited-blocks [ (each-block) ] with-variable ; inline
+
+: copy-at ( from to assoc -- )
+    3dup nip at* [ -rot set-at drop ] [ 2drop 2drop ] if ; inline
diff --git a/unfinished/compiler/cfg/elaboration/elaboration.factor b/unfinished/compiler/cfg/elaboration/elaboration.factor
new file mode 100644
index 0000000000..c3c3e47472
--- /dev/null
+++ b/unfinished/compiler/cfg/elaboration/elaboration.factor
@@ -0,0 +1,49 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors namespaces math layouts sequences locals
+combinators compiler.vops compiler.vops.builder
+compiler.cfg.builder ;
+IN: compiler.cfg.elaboration
+
+! This pass must run before conversion to machine IR to ensure
+! correctness.
+
+GENERIC: elaborate* ( insn -- )
+
+: slot-shift ( -- n )
+    tag-bits get cell log2 - ;
+
+:: compute-slot-known-tag ( insn -- addr )
+    { $1 $2 $3 $4 $5 } temps
+    init-intrinsic
+    $1 slot-shift %iconst emit  ! load shift offset
+    $2 insn slot>> $1 %shr emit ! shift slot by shift offset
+    $3 insn tag>> %iconst emit  ! load tag number
+    $4 $2 $3 %isub emit
+    $5 insn obj>> $4 %iadd emit ! compute slot offset
+    $5
+    ;
+
+:: compute-slot-any-tag ( insn -- addr )
+    { $1 $2 $3 $4 } temps
+    init-intrinsic
+    $1 insn obj>> emit-untag    ! untag object
+    $2 slot-shift %iconst emit  ! load shift offset
+    $3 insn slot>> $2 %shr emit ! shift slot by shift offset
+    $4 $1 $3 %iadd emit         ! compute slot offset
+    $4
+    ;
+
+: compute-slot ( insn -- addr )
+    dup tag>> [ compute-slot-known-tag ] [ compute-slot-any-tag ] if ;
+
+M: %%slot elaborate*
+    [ out>> ] [ compute-slot ] bi %load emit ;
+
+M: %%set-slot elaborate*
+    [ in>> ] [ compute-slot ] bi %store emit ;
+
+M: object elaborate* , ;
+
+: elaboration ( insns -- insns )
+    [ [ elaborate* ] each ] { } make ;
diff --git a/unfinished/compiler/cfg/kill-nops/kill-nops.factor b/unfinished/compiler/cfg/kill-nops/kill-nops.factor
new file mode 100644
index 0000000000..56e88c37e4
--- /dev/null
+++ b/unfinished/compiler/cfg/kill-nops/kill-nops.factor
@@ -0,0 +1,9 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: sequences kernel compiler.vops ;
+IN: compiler.cfg.kill-nops
+
+! Smallest compiler pass ever.
+
+: kill-nops ( instructions -- instructions' )
+    [ nop? not ] filter ;
diff --git a/unfinished/compiler/cfg/live-ranges/live-ranges.factor b/unfinished/compiler/cfg/live-ranges/live-ranges.factor
new file mode 100644
index 0000000000..e6ff6164d9
--- /dev/null
+++ b/unfinished/compiler/cfg/live-ranges/live-ranges.factor
@@ -0,0 +1,40 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel namespaces assocs accessors math.order sequences
+compiler.vops ;
+IN: compiler.cfg.live-ranges
+
+TUPLE: live-range from to ;
+
+! Maps vregs to live ranges
+SYMBOL: live-ranges
+
+: def ( n vreg -- )
+    [ dup live-range boa ] dip live-ranges get set-at ;
+
+: use ( n vreg -- )
+    live-ranges get at [ max ] change-to drop ;
+
+GENERIC: compute-live-ranges* ( n insn -- )
+
+M: nullary-op compute-live-ranges*
+    2drop ;
+
+M: flushable-op compute-live-ranges*
+    out>> def ;
+
+M: effect-op compute-live-ranges*
+    in>> use ;
+
+M: unary-op compute-live-ranges*
+    [ out>> def ] [ in>> use ] 2bi ;
+
+M: binary-op compute-live-ranges*
+    [ call-next-method ] [ in1>> use ] [ in2>> use ] 2tri ;
+
+M: %store compute-live-ranges*
+    [ call-next-method ] [ addr>> use ] 2bi ;
+
+: compute-live-ranges ( insns -- )
+    H{ } clone live-ranges set
+    [ swap compute-live-ranges* ] each-index ;
diff --git a/unfinished/compiler/cfg/predecessors/predecessors.factor b/unfinished/compiler/cfg/predecessors/predecessors.factor
new file mode 100644
index 0000000000..c05a425a79
--- /dev/null
+++ b/unfinished/compiler/cfg/predecessors/predecessors.factor
@@ -0,0 +1,12 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: compiler.cfg kernel accessors sequences ;
+IN: compiler.cfg.predecessors
+
+! Pass to compute precedecessors.
+
+: compute-predecessors ( procedure -- )
+    [
+        dup successors>>
+        [ predecessors>> push ] with each
+    ] each-block ;
diff --git a/unfinished/compiler/cfg/simplifier/simplifier.factor b/unfinished/compiler/cfg/simplifier/simplifier.factor
new file mode 100644
index 0000000000..2e51a1af9a
--- /dev/null
+++ b/unfinished/compiler/cfg/simplifier/simplifier.factor
@@ -0,0 +1,25 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors sequences kernel
+compiler.cfg
+compiler.cfg.predecessors
+compiler.cfg.stack
+compiler.cfg.alias
+compiler.cfg.write-barrier
+compiler.cfg.elaboration
+compiler.cfg.vn
+compiler.cfg.vn.conditions
+compiler.cfg.kill-nops ;
+IN: compiler.cfg.simplifier
+
+: simplify ( insns -- insns' )
+    normalize-height
+    alias-analysis
+    elaboration
+    value-numbering
+    eliminate-write-barrier
+    kill-nops ;
+
+: simplify-cfg ( procedure -- procedure )
+    dup compute-predecessors
+    dup [ [ simplify ] change-instructions drop ] each-block ;
diff --git a/unfinished/compiler/cfg/stack/stack.factor b/unfinished/compiler/cfg/stack/stack.factor
new file mode 100644
index 0000000000..43dd7a0c84
--- /dev/null
+++ b/unfinished/compiler/cfg/stack/stack.factor
@@ -0,0 +1,42 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors math namespaces sequences kernel fry
+compiler.vops ;
+IN: compiler.cfg.stack
+
+! Combine multiple stack height changes into one, done at the
+! start of the basic block.
+!
+! Alias analysis and value numbering assume this optimization
+! has been performed.
+
+! Current data and retain stack height is stored in
+! %data, %retain variables.
+GENERIC: compute-heights ( insn -- )
+
+M: %height compute-heights
+    [ n>> ] [ stack>> ] bi [ + ] change ;
+
+M: object compute-heights drop ;
+
+GENERIC: normalize-height* ( insn -- insn )
+
+M: %height normalize-height*
+    [ n>> ] [ stack>> ] bi [ swap - ] change nop ;
+
+: (normalize-height) ( insn -- insn )
+    dup stack>> get '[ , + ] change-n ; inline
+
+M: %peek normalize-height* (normalize-height) ;
+
+M: %replace normalize-height* (normalize-height) ;
+
+M: object normalize-height* ;
+
+: normalize-height ( insns -- insns' )
+    0 %data set
+    0 %retain set
+    [ [ compute-heights ] each ]
+    [ [ [ normalize-height* ] map ] with-scope ] bi
+    %data get dup zero? [ drop ] [ %data %height boa prefix ] if
+    %retain get dup zero? [ drop ] [ %retain %height boa prefix ] if ;
diff --git a/unfinished/compiler/cfg/summary.txt b/unfinished/compiler/cfg/summary.txt
new file mode 100644
index 0000000000..eac58baecd
--- /dev/null
+++ b/unfinished/compiler/cfg/summary.txt
@@ -0,0 +1 @@
+Low-level optimizer operating on control flow graph SSA IR
diff --git a/unfinished/compiler/cfg/vn/conditions/conditions.factor b/unfinished/compiler/cfg/vn/conditions/conditions.factor
new file mode 100644
index 0000000000..259e8232f9
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/conditions/conditions.factor
@@ -0,0 +1,53 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences layouts accessors compiler.vops
+compiler.cfg.vn.graph
+compiler.cfg.vn.expressions
+compiler.cfg.vn.liveness
+compiler.cfg.vn ;
+IN: compiler.cfg.vn.conditions
+
+! The CFG generator produces naive code for the following code
+! sequence:
+!
+! fixnum< [ ... ] [ ... ] if
+!
+! The fixnum< comparison generates a boolean, which is then
+! tested against f.
+!
+! Using value numbering, we optimize the comparison of a boolean
+! against f where the boolean is the result of comparison.
+
+: expr-f? ( expr -- ? )
+    dup op>> %iconst eq?
+    [ value>> \ f tag-number = ] [ drop f ] if ;
+
+: comparison-with-f? ( insn -- expr/f ? )
+    #! The expr is a binary-op %icmp or %fcmp.
+    dup code>> cc/= eq? [
+        in>> vreg>vn vn>expr dup in2>> vn>expr expr-f?
+    ] [ drop f f ] if ;
+
+: of-boolean? ( expr -- expr/f ? )
+    #! The expr is a binary-op %icmp or %fcmp.
+    in1>> vn>expr dup op>> { %%iboolean %%fboolean } memq? ;
+
+: original-comparison ( expr -- in/f code/f )
+    [ in>> vn>vreg ] [ code>> ] bi ;
+
+: eliminate-boolean ( insn -- in/f code/f )
+    comparison-with-f? [
+        of-boolean? [
+            original-comparison
+        ] [ drop f f ] if
+    ] [ drop f f ] if ;
+
+M: cond-branch make-value-node
+    #! If the conditional branch is testing the result of an
+    #! earlier comparison against f, we only mark as live the
+    #! earlier comparison, so DCE will eliminate the boolean.
+    dup eliminate-boolean drop swap in>> or live-vreg ;
+ 
+M: cond-branch eliminate
+    dup eliminate-boolean dup
+    [ [ >>in ] [ >>code ] bi* ] [ 2drop ] if ;
diff --git a/unfinished/compiler/cfg/vn/constant-fold/constant-fold.factor b/unfinished/compiler/cfg/vn/constant-fold/constant-fold.factor
new file mode 100644
index 0000000000..f30a55d869
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/constant-fold/constant-fold.factor
@@ -0,0 +1,17 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel compiler.vops compiler.cfg.vn.graph
+compiler.cfg.vn.expressions ;
+IN: compiler.cfg.vn.constant-fold
+
+GENERIC: constant-fold ( insn -- insn' )
+
+M: vop constant-fold ;
+
+: expr>insn ( out constant-expr -- constant-op )
+    [ value>> ] [ op>> ] bi new swap >>value swap >>out ;
+
+M: pure-op constant-fold
+    dup out>>
+    dup vreg>vn vn>expr
+    dup constant-expr? [ expr>insn nip ] [ 2drop ] if ;
diff --git a/unfinished/compiler/cfg/vn/expressions/expressions.factor b/unfinished/compiler/cfg/vn/expressions/expressions.factor
new file mode 100644
index 0000000000..7b84c01057
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/expressions/expressions.factor
@@ -0,0 +1,64 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors classes kernel math namespaces sorting
+compiler.vops compiler.cfg.vn.graph ;
+IN: compiler.cfg.vn.expressions
+
+! Referentially-transparent expressions
+TUPLE: expr op ;
+TUPLE: nullary-expr < expr ;
+TUPLE: unary-expr < expr in ;
+TUPLE: binary-expr < expr in1 in2 ;
+TUPLE: commutative-expr < binary-expr ;
+TUPLE: boolean-expr < unary-expr code ;
+TUPLE: constant-expr < expr value ;
+TUPLE: literal-expr < unary-expr object ;
+
+! op is always %peek
+TUPLE: peek-expr < expr loc ;
+
+SYMBOL: input-expr-counter
+
+: next-input-expr ( -- n )
+    input-expr-counter [ dup 1 + ] change ;
+
+! Expressions whose values are inputs to the basic block. We
+! can eliminate a second computation having the same 'n' as
+! the first one; we can also eliminate input-exprs whose
+! result is not used.
+TUPLE: input-expr < expr n ;
+
+GENERIC: >expr ( insn -- expr )
+
+M: %literal-table >expr
+    class nullary-expr boa ;
+
+M: constant-op >expr
+    [ class ] [ value>> ] bi constant-expr boa ;
+
+M: %literal >expr
+    [ class ] [ in>> vreg>vn ] [ object>> ] tri literal-expr boa ;
+
+M: unary-op >expr
+    [ class ] [ in>> vreg>vn ] bi unary-expr boa ;
+
+M: binary-op >expr
+    [ class ] [ in1>> vreg>vn ] [ in2>> vreg>vn ] tri
+    binary-expr boa ;
+
+M: commutative-op >expr
+    [ class ] [ in1>> vreg>vn ] [ in2>> vreg>vn ] tri
+    sort-pair commutative-expr boa ;
+
+M: boolean-op >expr
+    [ class ] [ in>> vreg>vn ] [ code>> ] tri
+    boolean-expr boa ;
+
+M: %peek >expr
+    [ class ] [ stack-loc ] bi peek-expr boa ;
+
+M: flushable-op >expr
+    class next-input-expr input-expr boa ;
+
+: init-expressions ( -- )
+    0 input-expr-counter set ;
diff --git a/unfinished/compiler/cfg/vn/graph/graph.factor b/unfinished/compiler/cfg/vn/graph/graph.factor
new file mode 100644
index 0000000000..ef5d7c2d46
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/graph/graph.factor
@@ -0,0 +1,37 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math namespaces assocs biassocs accessors
+math.order prettyprint.backend parser ;
+IN: compiler.cfg.vn.graph
+
+TUPLE: vn n ;
+
+SYMBOL: vn-counter
+
+: next-vn ( -- vn ) vn-counter [ dup 1 + ] change vn boa ;
+
+: VN: scan-word vn boa parsed ; parsing
+
+M: vn <=> [ n>> ] compare ;
+
+M: vn pprint* \ VN: pprint-word n>> pprint* ;
+
+! biassoc mapping expressions to value numbers
+SYMBOL: exprs>vns
+
+: expr>vn ( expr -- vn ) exprs>vns get [ drop next-vn ] cache ;
+
+: vn>expr ( vn -- expr ) exprs>vns get value-at ;
+
+SYMBOL: vregs>vns
+
+: vreg>vn ( vreg -- vn ) vregs>vns get at ;
+
+: vn>vreg ( vn -- vreg ) vregs>vns get value-at ;
+
+: set-vn ( vn vreg -- ) vregs>vns get set-at ;
+
+: init-value-graph ( -- )
+    0 vn-counter set
+    <bihash> exprs>vns set
+    <bihash> vregs>vns set ;
diff --git a/unfinished/compiler/cfg/vn/liveness/liveness.factor b/unfinished/compiler/cfg/vn/liveness/liveness.factor
new file mode 100644
index 0000000000..4a218d40df
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/liveness/liveness.factor
@@ -0,0 +1,37 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces kernel assocs sets accessors compiler.vops
+compiler.cfg.vn.graph compiler.cfg.vn.expressions ;
+IN: compiler.cfg.vn.liveness
+
+! A set of VNs which are (transitively) used by effect-ops. This
+! is precisely the set of VNs whose value is needed outside of
+! the basic block.
+SYMBOL: live-vns
+
+GENERIC: live-expr ( expr -- )
+
+: live-vn ( vn -- )
+    #! Mark a VN and all VNs used in its computation as live.
+    dup live-vns get key? [ drop ] [
+        [ live-vns get conjoin ] [ vn>expr live-expr ] bi
+    ] if ;
+
+: live-vreg ( vreg -- ) vreg>vn live-vn ;
+
+M: expr live-expr drop ;
+M: literal-expr live-expr in>> live-vn ;
+M: unary-expr live-expr in>> live-vn ;
+M: binary-expr live-expr [ in1>> live-vn ] [ in2>> live-vn ] bi ;
+
+: live? ( vreg -- ? )
+    dup vreg>vn tuck vn>vreg =
+    [ live-vns get key? ] [ drop f ] if ;
+
+: init-liveness ( -- )
+    H{ } clone live-vns set ;
+
+GENERIC: eliminate ( insn -- insn' )
+
+M: flushable-op eliminate dup out>> live? ?nop ;
+M: vop eliminate ;
diff --git a/unfinished/compiler/cfg/vn/propagate/propagate.factor b/unfinished/compiler/cfg/vn/propagate/propagate.factor
new file mode 100644
index 0000000000..75ada5f8ed
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/propagate/propagate.factor
@@ -0,0 +1,43 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces assocs sequences kernel accessors
+compiler.vops
+compiler.cfg.vn.graph ;
+IN: compiler.cfg.vn.propagate
+
+! If two vregs compute the same value, replace references to
+! the latter with the former.
+
+: resolve ( vreg -- vreg' ) vreg>vn vn>vreg ;
+
+GENERIC: propogate ( insn -- insn )
+
+M: effect-op propogate
+    [ resolve ] change-in ;
+
+M: unary-op propogate
+    [ resolve ] change-in ;
+
+M: binary-op propogate
+    [ resolve ] change-in1
+    [ resolve ] change-in2 ;
+
+M: %phi propogate
+    [ [ resolve ] map ] change-in ;
+
+M: %%slot propogate
+    [ resolve ] change-obj
+    [ resolve ] change-slot ;
+
+M: %%set-slot propogate
+    call-next-method
+    [ resolve ] change-obj
+    [ resolve ] change-slot ;
+
+M: %store propogate
+    call-next-method
+    [ resolve ] change-addr ;
+
+M: nullary-op propogate ;
+
+M: flushable-op propogate ;
diff --git a/unfinished/compiler/cfg/vn/simplify/simplify.factor b/unfinished/compiler/cfg/vn/simplify/simplify.factor
new file mode 100644
index 0000000000..f16f3e3e8a
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/simplify/simplify.factor
@@ -0,0 +1,220 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors combinators classes math math.order
+layouts locals
+compiler.vops
+compiler.cfg.vn.graph
+compiler.cfg.vn.expressions ;
+IN: compiler.cfg.vn.simplify
+
+! Return value of f means we didn't simplify.
+GENERIC: simplify* ( expr -- vn/expr/f )
+
+: constant ( val type -- expr ) swap constant-expr boa ;
+
+: simplify-not ( in -- vn/expr/f )
+    {
+        { [ dup constant-expr? ] [ value>> bitnot %iconst constant ] }
+        { [ dup op>> %not = ] [ in>> ] }
+        [ drop f ]
+    } cond ;
+
+: simplify-box-float ( in -- vn/expr/f )
+    {
+        { [ dup op>> %%unbox-float = ] [ in>> ] }
+        [ drop f ]
+    } cond ;
+
+: simplify-unbox-float ( in -- vn/expr/f )
+    {
+        { [ dup literal-expr? ] [ object>> %fconst constant ] }
+        { [ dup op>> %%box-float = ] [ in>> ] }
+        [ drop f ]
+    } cond ;
+
+M: unary-expr simplify*
+    #! Note the copy propagation: a %copy always simplifies to
+    #! its source vn.
+    [ in>> vn>expr ] [ op>> ] bi {
+        { %copy [ ] }
+        { %not [ simplify-not ] }
+        { %%box-float [ simplify-box-float ] }
+        { %%unbox-float [ simplify-unbox-float ] }
+        [ 2drop f ]
+    } case ;
+
+: izero? ( expr -- ? ) T{ constant-expr f %iconst 0 } = ;
+
+: ione? ( expr -- ? ) T{ constant-expr f %iconst 1 } = ;
+
+: ineg-one? ( expr -- ? ) T{ constant-expr f %iconst -1 } = ;
+
+: fzero? ( expr -- ? ) T{ constant-expr f %fconst 0 } = ;
+
+: fone? ( expr -- ? ) T{ constant-expr f %fconst 1 } = ;
+
+: fneg-one? ( expr -- ? ) T{ constant-expr f %fconst -1 } = ;
+
+: identity ( in1 in2 val type -- expr ) constant 2nip ;
+
+: constant-fold? ( in1 in2 -- ? )
+    [ constant-expr? ] both? ;
+
+:: constant-fold ( in1 in2 quot type -- expr )
+    in1 in2 constant-fold?
+    [ in1 value>> in2 value>> quot call type constant ]
+    [ f ]
+    if ; inline
+
+: simplify-iadd ( in1 in2 -- vn/expr/f )
+    {
+        { [ over izero? ] [ nip ] }
+        { [ dup izero? ] [ drop ] }
+        [ [ + ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-imul ( in1 in2 -- vn/expr/f )
+    {
+        { [ over ione? ] [ nip ] }
+        { [ dup ione? ] [ drop ] }
+        [ [ * ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-and ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ 0 %iconst identity ] }
+        { [ dup ineg-one? ] [ drop ] }
+        { [ 2dup = ] [ drop ] }
+        [ [ bitand ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-or ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        { [ dup ineg-one? ] [ -1 %iconst identity ] }
+        { [ 2dup = ] [ drop ] }
+        [ [ bitor ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-xor ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        [ [ bitxor ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-fadd ( in1 in2 -- vn/expr/f )
+    {
+        { [ over fzero? ] [ nip ] }
+        { [ dup fzero? ] [ drop ] }
+        [ [ + ] %fconst constant-fold ]
+    } cond ;
+
+: simplify-fmul ( in1 in2 -- vn/expr/f )
+    {
+        { [ over fone? ] [ nip ] }
+        { [ dup fone? ] [ drop ] }
+        [ [ * ] %fconst constant-fold ]
+    } cond ;
+
+: commutative-operands ( expr -- in1 in2 )
+    [ in1>> vn>expr ] [ in2>> vn>expr ] bi
+    over constant-expr? [ swap ] when ;
+
+M: commutative-expr simplify*
+    [ commutative-operands ] [ op>> ] bi {
+        { %iadd [ simplify-iadd ] }
+        { %imul [ simplify-imul ] }
+        { %and [ simplify-and ] }
+        { %or [ simplify-or ] }
+        { %xor [ simplify-xor ] }
+        { %fadd [ simplify-fadd ] }
+        { %fmul [ simplify-fmul ] }
+        [ 3drop f ]
+    } case ;
+
+: simplify-isub ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        { [ 2dup = ] [ 0 %iconst identity ] }
+        [ [ - ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-idiv ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup ione? ] [ drop ] }
+        [ [ /i ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-imod ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup ione? ] [ 0 %iconst identity ] }
+        { [ 2dup = ] [ 0 %iconst identity ] }
+        [ [ mod ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-shl ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        { [ over izero? ] [ drop ] }
+        [ [ shift ] %iconst constant-fold ]
+    } cond ;
+
+: unsigned ( n -- n' )
+    cell-bits 2^ 1- bitand ;
+
+: useless-shift? ( in1 in2 -- ? )
+    over op>> %shl = [ [ in2>> ] [ expr>vn ] bi* = ] [ 2drop f ] if ;
+
+: simplify-shr ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        { [ over izero? ] [ drop ] }
+        { [ 2dup useless-shift? ] [ drop in1>> ] }
+        [ [ neg shift unsigned ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-sar ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        { [ over izero? ] [ drop ] }
+        { [ 2dup useless-shift? ] [ drop in1>> ] }
+        [ [ neg shift ] %iconst constant-fold ]
+    } cond ;
+
+: simplify-icmp ( in1 in2 -- vn/expr/f )
+    = [ +eq+ %cconst constant ] [ f ] if ;
+
+: simplify-fsub ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup izero? ] [ drop ] }
+        [ [ - ] %fconst constant-fold ]
+    } cond ;
+
+: simplify-fdiv ( in1 in2 -- vn/expr/f )
+    {
+        { [ dup fone? ] [ drop ] }
+        [ [ /i ] %fconst constant-fold ]
+    } cond ;
+
+M: binary-expr simplify*
+    [ in1>> vn>expr ] [ in2>> vn>expr ] [ op>> ] tri {
+        { %isub [ simplify-isub ] }
+        { %idiv [ simplify-idiv ] }
+        { %imod [ simplify-imod ] }
+        { %shl [ simplify-shl ] }
+        { %shr [ simplify-shr ] }
+        { %sar [ simplify-sar ] }
+        { %icmp [ simplify-icmp ] }
+        { %fsub [ simplify-fsub ] }
+        { %fdiv [ simplify-fdiv ] }
+        [ 3drop f ]
+    } case ;
+
+M: expr simplify* drop f ;
+
+: simplify ( expr -- vn )
+    dup simplify* {
+        { [ dup not ] [ drop expr>vn ] }
+        { [ dup expr? ] [ expr>vn nip ] }
+        { [ dup vn? ] [ nip ] }
+    } cond ;
diff --git a/unfinished/compiler/cfg/vn/vn.factor b/unfinished/compiler/cfg/vn/vn.factor
new file mode 100644
index 0000000000..e16fff01fc
--- /dev/null
+++ b/unfinished/compiler/cfg/vn/vn.factor
@@ -0,0 +1,31 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: namespaces assocs biassocs classes kernel math accessors
+sorting sets sequences compiler.vops
+compiler.cfg.vn.graph
+compiler.cfg.vn.expressions
+compiler.cfg.vn.simplify
+compiler.cfg.vn.liveness
+compiler.cfg.vn.constant-fold
+compiler.cfg.vn.propagate ;
+IN: compiler.cfg.vn
+
+: insn>vn ( insn -- vn ) >expr simplify ; inline
+
+GENERIC: make-value-node ( insn -- )
+M: flushable-op make-value-node [ insn>vn ] [ out>> ] bi set-vn ;
+M: effect-op make-value-node in>> live-vreg ;
+M: %store make-value-node [ in>> live-vreg ] [ addr>> live-vreg ] bi ;
+M: %%set-slot make-value-node [ in>> live-vreg ] [ obj>> live-vreg ] bi ;
+M: nullary-op make-value-node drop ;
+
+: init-value-numbering ( -- )
+    init-value-graph
+    init-expressions
+    init-liveness ;
+
+: value-numbering ( instructions -- instructions )
+    init-value-numbering
+    [ [ make-value-node ] each ]
+    [ [ eliminate constant-fold propogate ] map ]
+    bi ;
diff --git a/unfinished/compiler/cfg/write-barrier/write-barrier.factor b/unfinished/compiler/cfg/write-barrier/write-barrier.factor
new file mode 100644
index 0000000000..f42f37702f
--- /dev/null
+++ b/unfinished/compiler/cfg/write-barrier/write-barrier.factor
@@ -0,0 +1,26 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors namespaces assocs sets sequences
+compiler.vops compiler.cfg ;
+IN: compiler.cfg.write-barrier
+
+! Eliminate redundant write barrier hits.
+SYMBOL: hits
+
+GENERIC: eliminate-write-barrier* ( insn -- insn' )
+
+M: %%allot eliminate-write-barrier*
+    dup out>> hits get conjoin ;
+
+M: %write-barrier eliminate-write-barrier*
+    dup in>> hits get key?
+    [ drop nop ] [ dup in>> hits get conjoin ] if ;
+
+M: %copy eliminate-write-barrier*
+    dup in/out hits get copy-at ;
+
+M: vop eliminate-write-barrier* ;
+
+: eliminate-write-barrier ( insns -- insns )
+    H{ } clone hits set
+    [ eliminate-write-barrier* ] map ;
diff --git a/unfinished/compiler/lvops/lvops.factor b/unfinished/compiler/lvops/lvops.factor
new file mode 100644
index 0000000000..e1f5ebb528
--- /dev/null
+++ b/unfinished/compiler/lvops/lvops.factor
@@ -0,0 +1,21 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+IN: compiler.lvops
+
+! Machine representation ("linear virtual operations"). Uses
+! same operations as CFG basic blocks, except edges and branches
+! are replaced by linear jumps (_b* instances).
+
+TUPLE: _label label ;
+
+! Unconditional jump to label
+TUPLE: _b label ;
+
+! Integer
+TUPLE: _bi label in code ;
+TUPLE: _bf label in code ;
+
+! Dispatch table, jumps to one of following _address
+! depending value of 'in'
+TUPLE: _dispatch in ;
+TUPLE: _address word ;
diff --git a/unfinished/compiler/machine/builder/builder.factor b/unfinished/compiler/machine/builder/builder.factor
new file mode 100644
index 0000000000..42379d4fa3
--- /dev/null
+++ b/unfinished/compiler/machine/builder/builder.factor
@@ -0,0 +1,50 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math accessors sequences namespaces
+compiler.cfg compiler.vops compiler.lvops ;
+IN: compiler.machine.builder
+
+SYMBOL: block-counter
+
+: number-basic-block ( basic-block -- )
+    #! Make this fancy later.
+    dup number>> [ drop ] [
+        block-counter [ dup 1+ ] change >>number
+        [ , ] [
+            successors>> <reversed>
+            [ number-basic-block ] each
+        ] bi
+    ] if ;
+
+: flatten-basic-blocks ( procedure -- blocks )
+    [
+        0 block-counter
+        [ number-basic-block ]
+        with-variable
+    ] { } make ;
+
+GENERIC: linearize-instruction ( basic-block insn -- )
+
+M: object linearize-instruction
+    , drop ;
+
+M: %b linearize-instruction
+    drop successors>> first number>> _b emit ;
+
+: conditional-branch ( basic-block insn class -- )
+    [ successors>> ] 2dip
+    [ [ first number>> ] [ [ in>> ] [ code>> ] bi ] [ ] tri* emit ]
+    [ 2drop second number>> _b emit ]
+    3bi ; inline
+
+M: %bi linearize-instruction _bi conditional-branch ;
+M: %bf linearize-instruction _bf conditional-branch ;
+
+: build-mr ( procedure -- insns )
+    [
+        flatten-basic-blocks [
+            [ number>> _label emit ]
+            [ dup instructions>> [ linearize-instruction ] with each ]
+            bi
+        ] each
+    ] { } make ;
diff --git a/unfinished/compiler/machine/debugger/debugger.factor b/unfinished/compiler/machine/debugger/debugger.factor
new file mode 100644
index 0000000000..adc84d771f
--- /dev/null
+++ b/unfinished/compiler/machine/debugger/debugger.factor
@@ -0,0 +1,45 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel namespaces sequences assocs io
+prettyprint inference generator optimizer
+compiler.vops
+compiler.tree.builder
+compiler.tree.optimizer
+compiler.cfg.builder
+compiler.cfg.simplifier
+compiler.machine.builder
+compiler.machine.simplifier ;
+IN: compiler.machine.debugger
+
+: tree>linear ( tree word -- linear )
+    [
+        init-counter
+        build-cfg
+        [ simplify-cfg build-mr simplify-mr ] assoc-map
+    ] with-scope ;
+
+: linear. ( linear -- )
+    [
+        "==== " write swap .
+        [ . ] each
+    ] assoc-each ;
+
+: linearized-quot. ( quot -- )
+    build-tree optimize-tree
+    "Anonymous quotation" tree>linear
+    linear. ;
+
+: linearized-word. ( word -- )
+    dup build-tree-from-word nip optimize-tree
+    dup word-dataflow nip optimize swap tree>linear linear. ;
+
+: >basic-block ( quot -- basic-block )
+    build-tree optimize-tree
+    [
+        init-counter
+        "Anonymous quotation" build-cfg
+        >alist first second simplify-cfg
+    ] with-scope ;
+
+: basic-block. ( basic-block -- )
+    instructions>> [ . ] each ;
diff --git a/unfinished/compiler/machine/simplifier/simplifier.factor b/unfinished/compiler/machine/simplifier/simplifier.factor
new file mode 100644
index 0000000000..a477c71c04
--- /dev/null
+++ b/unfinished/compiler/machine/simplifier/simplifier.factor
@@ -0,0 +1,18 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel accessors namespaces sequences.next compiler.lvops ;
+IN: compiler.machine.simplifier
+
+: useless-branch? ( next insn -- ? )
+    2dup [ _label? ] [ _b? ] bi* and
+    [ [ label>> ] bi@ = ] [ 2drop f ] if ;
+
+: simplify-mr ( insns -- insns )
+    #! Remove unconditional branches to labels immediately
+    #! following.
+    [
+        [
+            tuck useless-branch?
+            [ drop ] [ , ] if
+        ] each-next
+    ] { } make ;
diff --git a/unfinished/compiler/vops/builder/builder.factor b/unfinished/compiler/vops/builder/builder.factor
new file mode 100644
index 0000000000..9ce3be8f8e
--- /dev/null
+++ b/unfinished/compiler/vops/builder/builder.factor
@@ -0,0 +1,202 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: parser kernel namespaces words layouts sequences classes
+classes.algebra accessors math arrays byte-arrays
+inference.dataflow optimizer.allot compiler.cfg compiler.vops ;
+IN: compiler.vops.builder
+
+<< : TEMP: CREATE dup [ get ] curry define-inline ; parsing >>
+
+! Temps   Inputs    Outputs
+TEMP: $1  TEMP: #1  TEMP: ^1
+TEMP: $2  TEMP: #2  TEMP: ^2
+TEMP: $3  TEMP: #3  TEMP: ^3
+TEMP: $4  TEMP: #4  TEMP: ^4
+TEMP: $5  TEMP: #5  TEMP: ^5
+
+GENERIC: emit-literal ( vreg object -- )
+
+M: fixnum emit-literal ( vreg object -- )
+    tag-bits get shift %iconst emit ;
+
+M: f emit-literal
+    class tag-number %iconst emit ;
+
+M: object emit-literal ( vreg object -- )
+    next-vreg [ %literal-table emit ] keep
+    swap %literal emit ;
+
+: temps ( seq -- ) [ next-vreg swap set ] each ;
+
+: init-intrinsic ( -- )
+    { $1 $2 $3 $4 ^1 ^2 ^3 ^4 } temps ;
+
+: load-iconst ( value -- vreg )
+    [ next-vreg dup ] dip %iconst emit ;
+
+: load-tag-mask ( -- vreg )
+    tag-mask get load-iconst ;
+
+: load-tag-bits ( -- vreg )
+    tag-bits get load-iconst ;
+
+: emit-tag-fixnum ( out in -- )
+    load-tag-bits %shl emit ;
+
+: emit-untag-fixnum ( out in -- )
+    load-tag-bits %sar emit ;
+
+: emit-untag ( out in -- )
+    next-vreg dup tag-mask get bitnot %iconst emit
+    %and emit ;
+
+: emit-tag ( -- )
+    $1 #1 load-tag-mask %and emit
+    ^1 $1 emit-tag-fixnum ;
+
+: emit-slot ( node -- )
+    [ ^1 #1 #2 ] dip dup in-d>> first node-class class-tag %%slot emit ;
+
+UNION: immediate fixnum POSTPONE: f ;
+
+: emit-write-barrier ( node -- )
+    dup in-d>> first node-class immediate class< [ #2 %write-barrier emit ] unless ;
+
+: emit-set-slot ( node -- )
+    [ emit-write-barrier ]
+    [ [ #1 #2 #3 ] dip dup in-d>> second node-class class-tag %%set-slot emit ]
+    bi ;
+
+: emit-fixnum-bitnot ( -- )
+    $1 #1 %not emit
+    ^1 $1 load-tag-mask %xor emit ;
+
+: emit-fixnum+fast ( -- )
+    ^1 #1 #2 %iadd emit ;
+
+: emit-fixnum-fast ( -- )
+    ^1 #1 #2 %isub emit ;
+
+: emit-fixnum-bitand ( -- )
+    ^1 #1 #2 %and emit ;
+
+: emit-fixnum-bitor ( -- )
+    ^1 #1 #2 %or emit ;
+
+: emit-fixnum-bitxor ( -- )
+    ^1 #1 #2 %xor emit ;
+
+: emit-fixnum*fast ( -- )
+    $1 #1 emit-untag-fixnum
+    ^1 $1 #2 %imul emit ;
+
+: emit-fixnum-shift-left-fast ( n -- )
+    [ $1 ] dip %iconst emit
+    ^1 #1 $1 %shl emit ;
+
+: emit-fixnum-shift-right-fast ( n -- )
+    [ $1 ] dip %iconst emit
+    $2 #1 $1 %sar emit
+    ^1 $2 emit-untag ;
+
+: emit-fixnum-shift-fast ( n -- )
+    dup 0 >=
+    [ emit-fixnum-shift-left-fast ]
+    [ neg emit-fixnum-shift-right-fast ] if ;
+
+: emit-fixnum-compare ( cc -- )
+    $1 #1 #2 %icmp emit
+    [ ^1 $1 ] dip %%iboolean emit ;
+
+: emit-fixnum<= ( -- )
+    cc<= emit-fixnum-compare ;
+
+: emit-fixnum>= ( -- )
+    cc>= emit-fixnum-compare ;
+
+: emit-fixnum< ( -- )
+    cc< emit-fixnum-compare ;
+
+: emit-fixnum> ( -- )
+    cc> emit-fixnum-compare ;
+
+: emit-eq? ( -- )
+    cc= emit-fixnum-compare ;
+
+: emit-unbox-float ( out in -- )
+    %%unbox-float emit ;
+
+: emit-box-float ( out in -- )
+    %%box-float emit ;
+
+: emit-unbox-floats ( -- )
+    $1 #1 emit-unbox-float
+    $2 #2 emit-unbox-float ;
+
+: emit-float+ ( -- )
+    emit-unbox-floats
+    $3 $1 $2 %fadd emit
+    ^1 $3 emit-box-float ;
+
+: emit-float- ( -- )
+    emit-unbox-floats
+    $3 $1 $2 %fsub emit
+    ^1 $3 emit-box-float ;
+
+: emit-float* ( -- )
+    emit-unbox-floats
+    $3 $1 $2 %fmul emit
+    ^1 $3 emit-box-float ;
+
+: emit-float/f ( -- )
+    emit-unbox-floats
+    $3 $1 $2 %fdiv emit
+    ^1 $3 emit-box-float ;
+
+: emit-float-compare ( cc -- )
+    emit-unbox-floats
+    $3 $1 $2 %fcmp emit
+    [ ^1 $3 ] dip %%fboolean emit ;
+
+: emit-float<= ( -- )
+    cc<= emit-float-compare ;
+
+: emit-float>= ( -- )
+    cc>= emit-float-compare ;
+
+: emit-float< ( -- )
+    cc< emit-float-compare ;
+
+: emit-float> ( -- )
+    cc> emit-float-compare ;
+
+: emit-float= ( -- )
+    cc= emit-float-compare ;
+
+: emit-allot ( vreg size class -- )
+    [ tag-number ] [ type-number ] bi %%allot emit ;
+
+: emit-(tuple) ( layout -- )
+    [ [ ^1 ] dip size>> 2 + tuple emit-allot ]
+    [ [ $1 ] dip emit-literal ] bi
+    $2 1 emit-literal
+    $1 ^1 $2 tuple tag-number %%set-slot emit ;
+
+: emit-(array) ( n -- )
+    [ [ ^1 ] dip 2 + array emit-allot ]
+    [ [ $1 ] dip emit-literal ] bi
+    $2 1 emit-literal
+    $1 ^1 $2 array tag-number %%set-slot emit ;
+
+: emit-(byte-array) ( n -- )
+    [ [ ^1 ] dip bytes>cells 2 + byte-array emit-allot ]
+    [ [ $1 ] dip emit-literal ] bi
+    $2 1 emit-literal
+    $1 ^1 $2 byte-array tag-number %%set-slot emit ;
+
+! fixnum>bignum
+! bignum>fixnum
+! fixnum+
+! fixnum-
+! getenv, setenv
+! alien accessors
diff --git a/unfinished/compiler/vops/vops.factor b/unfinished/compiler/vops/vops.factor
new file mode 100644
index 0000000000..839d4e064d
--- /dev/null
+++ b/unfinished/compiler/vops/vops.factor
@@ -0,0 +1,181 @@
+! Copyright (C) 2008 Slava Pestov.
+! See http://factorcode.org/license.txt for BSD license.
+USING: parser prettyprint.backend kernel accessors math
+math.order sequences namespaces arrays assocs ;
+IN: compiler.vops
+
+TUPLE: vreg n ;
+
+: VREG: scan-word vreg boa parsed ; parsing
+
+M: vreg pprint* \ VREG: pprint-word n>> pprint* ;
+
+SYMBOL: vreg-counter
+
+: init-counter ( -- )
+    { 0 } clone vreg-counter set ;
+
+: next-vreg ( -- n )
+    0 vreg-counter get [ dup 1+ ] change-nth vreg boa ;
+
+: emit ( ... class -- ) boa , ; inline
+
+! ! ! Instructions. Those prefixed with %% are high level
+! ! ! instructions eliminated during the elaboration phase.
+TUPLE: vop ;
+
+! Instruction which does not touch vregs.
+TUPLE: nullary-op < vop ;
+
+! Does nothing
+TUPLE: nop < nullary-op ;
+
+: nop ( -- vop ) T{ nop } ;
+
+: ?nop ( vop ? -- vop/nop ) [ drop nop ] unless ;
+
+! Instruction with no side effects; if 'out' is never read, we
+! can eliminate it.
+TUPLE: flushable-op < vop out ;
+
+! Instruction which is referentially transparent; we can replace
+! repeated computation with a reference to a previous value
+TUPLE: pure-op < flushable-op ;
+
+! Instruction only used for its side effect, produces no values
+TUPLE: effect-op < vop in ;
+
+TUPLE: binary-op < pure-op in1 in2 ;
+
+: inputs ( insn -- in1 in2 ) [ in1>> ] [ in2>> ] bi ; inline
+
+: in/out ( insn -- in out ) [ in>> ] [ out>> ] bi ; inline
+
+TUPLE: unary-op < pure-op in ;
+
+! Merge point; out is a sequence of vregs in a sequence of
+! sequences of vregs
+TUPLE: %phi < pure-op in ;
+
+! Integer, floating point, condition register copy
+TUPLE: %copy < unary-op ;
+
+! Constants
+TUPLE: constant-op < pure-op value ;
+
+TUPLE: %iconst < constant-op ; ! Integer
+TUPLE: %fconst < constant-op ; ! Float
+TUPLE: %cconst < constant-op ; ! Comparison result, +lt+ +eq+ +gt+
+
+! Load address of literal table into out
+TUPLE: %literal-table < pure-op ;
+
+! Load object literal from table.
+TUPLE: %literal < unary-op object ;
+
+! Read/write ops: candidates for alias analysis
+TUPLE: read-op < flushable-op ;
+TUPLE: write-op < effect-op ;
+
+! Stack shuffling
+SINGLETON: %data
+SINGLETON: %retain
+
+TUPLE: %peek < read-op n stack ;
+TUPLE: %replace < write-op n stack ;
+TUPLE: %height < nullary-op n stack ;
+
+: stack-loc ( insn -- pair ) [ n>> ] [ stack>> ] bi 2array ;
+
+TUPLE: commutative-op < binary-op ;
+
+! Integer arithmetic
+TUPLE: %iadd < commutative-op ;
+TUPLE: %isub < binary-op ;
+TUPLE: %imul < commutative-op ;
+TUPLE: %idiv < binary-op ;
+TUPLE: %imod < binary-op ;
+TUPLE: %icmp < binary-op ;
+
+! Bitwise ops
+TUPLE: %not < unary-op ;
+TUPLE: %and < commutative-op ;
+TUPLE: %or  < commutative-op ;
+TUPLE: %xor < commutative-op ;
+TUPLE: %shl < binary-op ;
+TUPLE: %shr < binary-op ;
+TUPLE: %sar < binary-op ;
+
+! Float arithmetic
+TUPLE: %fadd < commutative-op ;
+TUPLE: %fsub < binary-op ;
+TUPLE: %fmul < commutative-op ;
+TUPLE: %fdiv < binary-op ;
+TUPLE: %fcmp < binary-op ;
+
+! Float/integer conversion
+TUPLE: %f>i < unary-op ;
+TUPLE: %i>f < unary-op ;
+
+! Float boxing/unboxing
+TUPLE: %%box-float < unary-op ;
+TUPLE: %%unbox-float < unary-op ;
+
+! High level slot accessors for alias analysis
+! tag is f; if its not f, we can generate a faster sequence
+TUPLE: %%slot < read-op obj slot tag ;
+TUPLE: %%set-slot < write-op obj slot tag ;
+
+TUPLE: %write-barrier < effect-op ;
+
+! Memory
+TUPLE: %load < unary-op ;
+TUPLE: %store < effect-op addr ;
+
+! Control flow; they jump to either the first or second successor
+! of the BB
+
+! Unconditional transfer to first successor
+TUPLE: %b < nullary-op ;
+
+SYMBOL: cc<
+SYMBOL: cc<=
+SYMBOL: cc=
+SYMBOL: cc>
+SYMBOL: cc>=
+SYMBOL: cc/=
+
+: evaluate-cc ( result cc -- ? )
+    H{
+        { cc<  { +lt+           } }
+        { cc<= { +lt+ +eq+      } }
+        { cc=  {      +eq+      } }
+        { cc>= {      +eq+ +gt+ } }
+        { cc>  {           +gt+ } }
+        { cc/= { +lt+      +gt+ } }
+    } at memq? ;
+
+TUPLE: cond-branch < effect-op code ;
+
+TUPLE: %bi < cond-branch ;
+TUPLE: %bf < cond-branch ;
+
+! Convert condition register to a boolean
+TUPLE: boolean-op < unary-op code ;
+
+TUPLE: %%iboolean < boolean-op ;
+TUPLE: %%fboolean < boolean-op ;
+
+! Dispatch table, jumps to successor 0..n-1 depending value of
+! in, which must be in the range [0,n)
+TUPLE: %dispatch < effect-op ;
+
+! Procedures
+TUPLE: %return < nullary-op ;
+TUPLE: %prolog < nullary-op ;
+TUPLE: %epilog < nullary-op ;
+TUPLE: %jump < nullary-op word ;
+TUPLE: %call < nullary-op word ;
+
+! Heap allocation
+TUPLE: %%allot < flushable-op size tag type ;
diff --git a/extra/windows/shell32/authors.txt b/unfinished/regexp2/authors.txt
similarity index 100%
rename from extra/windows/shell32/authors.txt
rename to unfinished/regexp2/authors.txt
diff --git a/unfinished/regexp2/backend/backend.factor b/unfinished/regexp2/backend/backend.factor
new file mode 100644
index 0000000000..81ffb334bd
--- /dev/null
+++ b/unfinished/regexp2/backend/backend.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors hashtables kernel math state-tables vars vectors ;
+IN: regexp2.backend
+
+TUPLE: regexp
+    raw
+    { stack vector }
+    parse-tree
+    { options hashtable }
+    nfa-table
+    dfa-table
+    minimized-table
+    { nfa-traversal-flags hashtable }
+    { dfa-traversal-flags hashtable }
+    { state integer }
+    { new-states vector }
+    { visited-states hashtable } ;
+
+: reset-regexp ( regexp -- regexp )
+    0 >>state
+    V{ } clone >>stack
+    V{ } clone >>new-states
+    H{ } clone >>options
+    H{ } clone >>visited-states ;
+
+SYMBOL: current-regexp
diff --git a/unfinished/regexp2/classes/classes.factor b/unfinished/regexp2/classes/classes.factor
new file mode 100644
index 0000000000..7737e02d40
--- /dev/null
+++ b/unfinished/regexp2/classes/classes.factor
@@ -0,0 +1,55 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors kernel math math.order symbols regexp2.parser
+words regexp2.utils unicode.categories combinators.short-circuit ;
+IN: regexp2.classes
+
+GENERIC: class-member? ( obj class -- ? )
+
+M: word class-member? ( obj class -- ? ) 2drop f ;
+M: integer class-member? ( obj class -- ? ) 2drop f ;
+
+M: character-class-range class-member? ( obj class -- ? )
+    [ from>> ] [ to>> ] bi between? ;
+
+M: any-char class-member? ( obj class -- ? )
+    2drop t ;
+    
+M: letter-class class-member? ( obj class -- ? )
+    drop letter? ;
+            
+M: LETTER-class class-member? ( obj class -- ? )
+    drop LETTER? ;
+
+M: Letter-class class-member? ( obj class -- ? )
+    drop Letter? ;
+
+M: ascii-class class-member? ( obj class -- ? )
+    drop ascii? ;
+
+M: digit-class class-member? ( obj class -- ? )
+    drop digit? ;
+
+M: alpha-class class-member? ( obj class -- ? )
+    drop alpha? ;
+
+M: punctuation-class class-member? ( obj class -- ? )
+    drop punct? ;
+
+M: java-printable-class class-member? ( obj class -- ? )
+    drop java-printable? ;
+
+M: non-newline-blank-class class-member? ( obj class -- ? )
+    drop { [ blank? ] [ CHAR: \n = not ] } 1&& ;
+
+M: control-character-class class-member? ( obj class -- ? )
+    drop control-char? ;
+
+M: hex-digit-class class-member? ( obj class -- ? )
+    drop hex-digit? ;
+
+M: java-blank-class class-member? ( obj class -- ? )
+    drop java-blank? ;
+
+M: unmatchable-class class-member? ( obj class -- ? )
+    2drop f ;
diff --git a/unfinished/regexp2/dfa/dfa.factor b/unfinished/regexp2/dfa/dfa.factor
new file mode 100644
index 0000000000..468ffa73e5
--- /dev/null
+++ b/unfinished/regexp2/dfa/dfa.factor
@@ -0,0 +1,79 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs combinators fry kernel locals
+math math.order regexp2.nfa regexp2.transition-tables sequences
+sets sorting vectors regexp2.utils sequences.lib combinators.lib
+sequences.deep ;
+USING: io prettyprint threads ;
+IN: regexp2.dfa
+
+: find-delta ( states transition regexp -- new-states )
+    nfa-table>> transitions>>
+    rot [ swap at at ] with with map sift concat prune ;
+
+: (find-epsilon-closure) ( states regexp -- new-states )
+    eps swap find-delta ;
+
+: find-epsilon-closure ( states regexp -- new-states )
+    '[ dup , (find-epsilon-closure) union ] [ length ] while-changes
+    natural-sort ;
+
+: find-closure ( states transition regexp -- new-states )
+    [ find-delta ] 2keep nip find-epsilon-closure ;
+
+: find-start-state ( regexp -- state )
+    [ nfa-table>> start-state>> 1vector ] keep find-epsilon-closure ;
+
+: find-transitions ( seq1 regexp -- seq2 )
+    nfa-table>> transitions>>
+    [ at keys ] curry map concat eps swap remove ;
+
+: add-todo-state ( state regexp -- )
+    2dup visited-states>> key? [
+        2drop
+    ] [
+        [ visited-states>> conjoin ]
+        [ new-states>> push ] 2bi
+    ] if ;
+
+: new-transitions ( regexp -- )
+    dup new-states>> [
+        drop
+    ] [
+        dupd pop dup pick find-transitions rot
+        [
+            [ [ find-closure ] 2keep nip dupd add-todo-state ] 3keep
+            >r swapd transition make-transition r> dfa-table>> add-transition 
+        ] curry with each
+        new-transitions
+    ] if-empty ;
+
+: states ( hashtable -- array )
+    [ keys ]
+    [ values [ values concat ] map concat append ] bi ;
+
+: set-final-states ( regexp -- )
+    dup
+    [ nfa-table>> final-states>> keys ]
+    [ dfa-table>> transitions>> states ] bi
+    [ intersect empty? not ] with filter
+
+    swap dfa-table>> final-states>>
+    [ conjoin ] curry each ;
+
+: set-initial-state ( regexp -- )
+    dup
+    [ dfa-table>> ] [ find-start-state ] bi
+    [ >>start-state drop ] keep
+    1vector >>new-states drop ;
+
+: set-traversal-flags ( regexp -- )
+    [ dfa-table>> transitions>> keys ]
+    [ nfa-traversal-flags>> ]
+    bi 2drop ;
+
+: construct-dfa ( regexp -- )
+    [ set-initial-state ]
+    [ new-transitions ]
+    [ set-final-states ] tri ;
+    ! [ set-traversal-flags ] quad ;
diff --git a/unfinished/regexp2/nfa/nfa.factor b/unfinished/regexp2/nfa/nfa.factor
new file mode 100644
index 0000000000..792d9fe30f
--- /dev/null
+++ b/unfinished/regexp2/nfa/nfa.factor
@@ -0,0 +1,144 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs grouping kernel regexp2.backend
+locals math namespaces regexp2.parser sequences state-tables fry
+quotations math.order math.ranges vectors unicode.categories
+regexp2.utils regexp2.transition-tables words sequences.lib sets ;
+IN: regexp2.nfa
+
+SYMBOL: negation-mode
+: negated? ( -- ? ) negation-mode get 0 or odd? ; 
+
+SINGLETON: eps
+
+MIXIN: traversal-flag
+SINGLETON: lookahead-on INSTANCE: lookahead-on traversal-flag
+SINGLETON: lookahead-off INSTANCE: lookahead-off traversal-flag
+SINGLETON: capture-group-on INSTANCE: capture-group-on traversal-flag
+SINGLETON: capture-group-off INSTANCE: capture-group-off traversal-flag
+
+: next-state ( regexp -- state )
+    [ state>> ] [ [ 1+ ] change-state drop ] bi ;
+
+: set-start-state ( regexp -- )
+    dup stack>> [
+        drop
+    ] [
+        [ nfa-table>> ] [ pop first ] bi* >>start-state drop
+    ] if-empty ;
+
+GENERIC: nfa-node ( node -- )
+
+:: add-simple-entry ( obj class -- )
+    [let* | regexp [ current-regexp get ]
+            s0 [ regexp next-state ]
+            s1 [ regexp next-state ]
+            stack [ regexp stack>> ]
+            table [ regexp nfa-table>> ] |
+        negated? [
+            s0 f obj class make-transition table add-transition
+            s0 s1 <default-transition> table add-transition
+        ] [
+            s0 s1 obj class make-transition table add-transition
+        ] if
+        s0 s1 2array stack push
+        t s1 table final-states>> set-at ] ;
+
+: add-traversal-flag ( flag -- )
+    stack peek second
+    current-regexp get nfa-traversal-flags>> push-at ;
+
+:: concatenate-nodes ( -- )
+    [let* | regexp [ current-regexp get ]
+            stack [ regexp stack>> ]
+            table [ regexp nfa-table>> ]
+            s2 [ stack peek first ]
+            s3 [ stack pop second ]
+            s0 [ stack peek first ]
+            s1 [ stack pop second ] |
+        s1 s2 eps <literal-transition> table add-transition
+        s1 table final-states>> delete-at
+        s0 s3 2array stack push ] ;
+
+:: alternate-nodes ( -- )
+    [let* | regexp [ current-regexp get ]
+            stack [ regexp stack>> ]
+            table [ regexp nfa-table>> ]
+            s2 [ stack peek first ]
+            s3 [ stack pop second ]
+            s0 [ stack peek first ]
+            s1 [ stack pop second ]
+            s4 [ regexp next-state ]
+            s5 [ regexp next-state ] |
+        s4 s0 eps <literal-transition> table add-transition
+        s4 s2 eps <literal-transition> table add-transition
+        s1 s5 eps <literal-transition> table add-transition
+        s3 s5 eps <literal-transition> table add-transition
+        s1 table final-states>> delete-at
+        s3 table final-states>> delete-at
+        t s5 table final-states>> set-at
+        s4 s5 2array stack push ] ;
+
+M: kleene-star nfa-node ( node -- )
+    term>> nfa-node
+    [let* | regexp [ current-regexp get ]
+            stack [ regexp stack>> ]
+            s0 [ stack peek first ]
+            s1 [ stack pop second ]
+            s2 [ regexp next-state ]
+            s3 [ regexp next-state ]
+            table [ regexp nfa-table>> ] |
+        s1 table final-states>> delete-at
+        t s3 table final-states>> set-at
+        s1 s0 eps <literal-transition> table add-transition
+        s2 s0 eps <literal-transition> table add-transition
+        s2 s3 eps <literal-transition> table add-transition
+        s1 s3 eps <literal-transition> table add-transition
+        s2 s3 2array stack push ] ;
+
+M: concatenation nfa-node ( node -- )
+    seq>>
+    [ [ nfa-node ] each ]
+    [ length 1- [ concatenate-nodes ] times ] bi ;
+
+M: alternation nfa-node ( node -- )
+    seq>>
+    [ [ nfa-node ] each ]
+    [ length 1- [ alternate-nodes ] times ] bi ;
+
+M: constant nfa-node ( node -- )
+    char>> literal-transition add-simple-entry ;
+
+M: epsilon nfa-node ( node -- )
+    drop eps literal-transition add-simple-entry ;
+
+M: word nfa-node ( node -- )
+    class-transition add-simple-entry ;
+
+M: character-class-range nfa-node ( node -- )
+    class-transition add-simple-entry ;
+
+M: capture-group nfa-node ( node -- )
+    term>> nfa-node ;
+
+M: negation nfa-node ( node -- )
+    negation-mode inc
+    term>> nfa-node 
+    negation-mode dec ;
+
+M: lookahead nfa-node ( node -- )
+    eps literal-transition add-simple-entry
+    lookahead-on add-traversal-flag
+    term>> nfa-node
+    eps literal-transition add-simple-entry
+    lookahead-off add-traversal-flag
+    2 [ concatenate-nodes ] times ;
+
+: construct-nfa ( regexp -- )
+    [
+        reset-regexp
+        negation-mode off
+        [ current-regexp set ]
+        [ parse-tree>> nfa-node ]
+        [ set-start-state ] tri
+    ] with-scope ;
diff --git a/unfinished/regexp2/parser/parser-tests.factor b/unfinished/regexp2/parser/parser-tests.factor
new file mode 100644
index 0000000000..9dc7dc7909
--- /dev/null
+++ b/unfinished/regexp2/parser/parser-tests.factor
@@ -0,0 +1,33 @@
+USING: kernel tools.test regexp2.backend regexp2 ;
+IN: regexp2.parser
+
+: test-regexp ( string -- )
+    default-regexp parse-regexp ;
+
+: test-regexp2 ( string -- regexp )
+    default-regexp dup parse-regexp ;
+
+[ "(" ] [ unmatched-parentheses? ] must-fail-with
+
+[ ] [ "a|b" test-regexp ] unit-test
+[ ] [ "a.b" test-regexp ] unit-test
+[ ] [ "a|b|c" test-regexp ] unit-test
+[ ] [ "abc|b" test-regexp ] unit-test
+[ ] [ "a|bcd" test-regexp ] unit-test
+[ ] [ "a|(b)" test-regexp ] unit-test
+[ ] [ "(a)|b" test-regexp ] unit-test
+[ ] [ "(a|b)" test-regexp ] unit-test
+[ ] [ "((a)|(b))" test-regexp ] unit-test
+
+[ ] [ "(?:a)" test-regexp ] unit-test
+[ ] [ "(?i:a)" test-regexp ] unit-test
+[ ] [ "(?-i:a)" test-regexp ] unit-test
+[ "(?z:a)" test-regexp ] [ bad-option? ] must-fail-with
+[ "(?-z:a)" test-regexp ] [ bad-option? ] must-fail-with
+
+[ ] [ "(?=a)" test-regexp ] unit-test
+
+[ ] [ "[abc]" test-regexp ] unit-test
+[ ] [ "[a-c]" test-regexp ] unit-test
+[ ] [ "[^a-c]" test-regexp ] unit-test
+[ "[^]" test-regexp ] must-fail
diff --git a/unfinished/regexp2/parser/parser.factor b/unfinished/regexp2/parser/parser.factor
new file mode 100644
index 0000000000..206db3883d
--- /dev/null
+++ b/unfinished/regexp2/parser/parser.factor
@@ -0,0 +1,418 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs combinators io io.streams.string
+kernel math math.parser multi-methods namespaces qualified sets
+quotations sequences sequences.lib splitting symbols vectors
+dlists math.order combinators.lib unicode.categories strings
+sequences.lib regexp2.backend regexp2.utils unicode.case ;
+IN: regexp2.parser
+
+FROM: math.ranges => [a,b] ;
+
+MIXIN: node
+TUPLE: concatenation seq ; INSTANCE: concatenation node
+TUPLE: alternation seq ; INSTANCE: alternation node
+TUPLE: kleene-star term ; INSTANCE: kleene-star node
+
+! !!!!!!!!
+TUPLE: possessive-question term ; INSTANCE: possessive-question node
+TUPLE: possessive-kleene-star term ; INSTANCE: possessive-kleene-star node
+
+! !!!!!!!!
+TUPLE: reluctant-question term ; INSTANCE: reluctant-question node
+TUPLE: reluctant-kleene-star term ; INSTANCE: reluctant-kleene-star node
+
+TUPLE: negation term ; INSTANCE: negation node
+TUPLE: constant char ; INSTANCE: constant node
+TUPLE: range from to ; INSTANCE: range node
+TUPLE: lookahead term ; INSTANCE: lookahead node
+TUPLE: lookbehind term ; INSTANCE: lookbehind node
+TUPLE: capture-group term ; INSTANCE: capture-group node
+TUPLE: non-capture-group term ; INSTANCE: non-capture-group node
+TUPLE: independent-group term ; INSTANCE: independent-group node ! atomic group
+TUPLE: character-class-range from to ; INSTANCE: character-class-range node
+SINGLETON: epsilon INSTANCE: epsilon node
+SINGLETON: any-char INSTANCE: any-char node
+SINGLETON: front-anchor INSTANCE: front-anchor node
+SINGLETON: back-anchor INSTANCE: back-anchor node
+
+TUPLE: option-on option ; INSTANCE: option-on node
+TUPLE: option-off option ; INSTANCE: option-off node
+SINGLETONS: unix-lines dotall multiline comments case-insensitive unicode-case reversed-regexp ;
+
+SINGLETONS: letter-class LETTER-class Letter-class digit-class
+alpha-class non-newline-blank-class
+ascii-class punctuation-class java-printable-class blank-class
+control-character-class hex-digit-class java-blank-class c-identifier-class
+unmatchable-class ;
+
+SINGLETONS: beginning-of-group end-of-group
+beginning-of-character-class end-of-character-class
+left-parenthesis pipe caret dash ;
+
+: get-option ( option -- ? ) current-regexp get options>> at ;
+: get-unix-lines ( -- ? ) unix-lines get-option ;
+: get-dotall ( -- ? ) dotall get-option ;
+: get-multiline ( -- ? ) multiline get-option ;
+: get-comments ( -- ? ) comments get-option ;
+: get-case-insensitive ( -- ? ) case-insensitive get-option ;
+: get-unicode-case ( -- ? ) unicode-case get-option ;
+: get-reversed-regexp ( -- ? ) reversed-regexp get-option ;
+
+: <possessive-kleene-star> ( obj -- kleene ) possessive-kleene-star boa ;
+: <reluctant-kleene-star> ( obj -- kleene ) reluctant-kleene-star boa ;
+: <possessive-question> ( obj -- kleene ) possessive-question boa ;
+: <reluctant-question> ( obj -- kleene ) reluctant-question boa ;
+
+: <negation> ( obj -- negation ) negation boa ;
+: <concatenation> ( seq -- concatenation )
+    >vector get-reversed-regexp [ reverse ] when
+    concatenation boa ;
+: <alternation> ( seq -- alternation ) >vector alternation boa ;
+: <capture-group> ( obj -- capture-group ) capture-group boa ;
+: <kleene-star> ( obj -- kleene-star ) kleene-star boa ;
+: <constant> ( obj -- constant )
+    dup Letter? get-case-insensitive and [
+        [ ch>lower constant boa ]
+        [ ch>upper constant boa ] bi 2array <alternation>
+    ] [
+        constant boa
+    ] if ;
+
+: first|concatenation ( seq -- first/concatenation )
+    dup length 1 = [ first ] [ <concatenation> ] if ;
+
+: first|alternation ( seq -- first/alternation )
+    dup length 1 = [ first ] [ <alternation> ] if ;
+
+: <character-class-range> ( from to -- obj )
+    2dup [ Letter? ] bi@ or get-case-insensitive and [
+        [ [ ch>lower ] bi@ character-class-range boa ]
+        [ [ ch>upper ] bi@ character-class-range boa ] 2bi
+        2array [ [ from>> ] [ to>> ] bi < ] filter
+        [ unmatchable-class ] [ first|alternation ] if-empty
+    ] [
+        2dup <
+        [ character-class-range boa ] [ 2drop unmatchable-class ] if
+    ] if ;
+
+ERROR: unmatched-parentheses ;
+
+: make-positive-lookahead ( string -- )
+    lookahead boa push-stack ;
+
+: make-negative-lookahead ( string -- )
+    <negation> lookahead boa push-stack ;
+
+: make-independent-group ( string -- )
+    #! no backtracking
+    independent-group boa push-stack ;
+
+: make-positive-lookbehind ( string -- )
+    lookbehind boa push-stack ;
+
+: make-negative-lookbehind ( string -- )
+    <negation> lookbehind boa push-stack ;
+
+: make-non-capturing-group ( string -- )
+    non-capture-group boa push-stack ;
+
+ERROR: bad-option ch ;
+
+: option ( ch -- singleton )
+    {
+        { CHAR: i [ case-insensitive ] }
+        { CHAR: d [ unix-lines ] }
+        { CHAR: m [ multiline ] }
+        { CHAR: n [ multiline ] }
+        { CHAR: r [ reversed-regexp ] }
+        { CHAR: s [ dotall ] }
+        { CHAR: u [ unicode-case ] }
+        { CHAR: x [ comments ] }
+        [ bad-option ]
+    } case ;
+
+: option-on ( option -- ) current-regexp get options>> conjoin ;
+: option-off ( option -- ) current-regexp get options>> delete-at ;
+
+: toggle-option ( ch ? -- ) [ option ] dip [ option-on ] [ option-off ] if ;
+: (parse-options) ( string ? -- ) [ toggle-option ] curry each ;
+
+: parse-options ( string -- )
+    "-" split1 [ t (parse-options) ] [ f (parse-options) ] bi* ;
+
+DEFER: (parse-regexp)
+: parse-special-group ( -- )
+    beginning-of-group push-stack
+    (parse-regexp) pop-stack make-non-capturing-group ;
+
+ERROR: bad-special-group string ;
+
+DEFER: nested-parse-regexp
+: (parse-special-group) ( -- )
+    read1 {
+        { [ dup CHAR: # = ]
+            [ drop nested-parse-regexp pop-stack drop ] }
+        { [ dup CHAR: : = ]
+            [ drop nested-parse-regexp pop-stack make-non-capturing-group ] }
+        { [ dup CHAR: = = ]
+            [ drop nested-parse-regexp pop-stack make-positive-lookahead ] }
+        { [ dup CHAR: ! = ]
+            [ drop nested-parse-regexp pop-stack make-negative-lookahead ] }
+        { [ dup CHAR: > = ]
+            [ drop nested-parse-regexp pop-stack make-independent-group ] }
+        { [ dup CHAR: < = peek1 CHAR: = = and ]
+            [ drop drop1 nested-parse-regexp pop-stack make-positive-lookbehind ] }
+        { [ dup CHAR: < = peek1 CHAR: ! = and ]
+            [ drop drop1 nested-parse-regexp pop-stack make-negative-lookbehind ] }
+        [
+            ":)" read-until
+            [ swap prefix ] dip
+            {
+                { CHAR: : [ parse-options parse-special-group ] }
+                { CHAR: ) [ parse-options ] }
+                [ drop bad-special-group ]
+            } case
+        ]
+    } cond ;
+
+: handle-left-parenthesis ( -- )
+    peek1 CHAR: ? =
+    [ drop1 (parse-special-group) ]
+    [ nested-parse-regexp ] if ;
+
+: handle-dot ( -- ) any-char push-stack ;
+: handle-pipe ( -- ) pipe push-stack ;
+: (handle-star) ( obj -- kleene-star )
+    peek1 {
+        { CHAR: + [ drop1 <possessive-kleene-star> ] }
+        { CHAR: ? [ drop1 <reluctant-kleene-star> ] }
+        [ drop <kleene-star> ]
+    } case ;
+: handle-star ( -- ) stack pop (handle-star) push-stack ;
+: handle-question ( -- )
+    stack pop peek1 {
+        { CHAR: + [ drop1 <possessive-question> ] }
+        { CHAR: ? [ drop1 <reluctant-question> ] }
+        [ drop epsilon 2array <alternation> ]
+    } case push-stack ;
+: handle-plus ( -- )
+    stack pop dup (handle-star)
+    2array <concatenation> push-stack ;
+
+ERROR: unmatched-brace ;
+: parse-repetition ( -- start finish ? )
+    "}" read-until [ unmatched-brace ] unless
+    [ "," split1 [ string>number ] bi@ ]
+    [ CHAR: , swap index >boolean ] bi ;
+
+: replicate/concatenate ( n obj -- obj' )
+    over zero? [ 2drop epsilon ]
+    [ <repetition> first|concatenation ] if ;
+
+: exactly-n ( n -- )
+    stack pop replicate/concatenate push-stack ;
+
+: at-least-n ( n -- )
+    stack pop
+    [ replicate/concatenate ] keep
+    <kleene-star> 2array <concatenation> push-stack ;
+
+: at-most-n ( n -- )
+    1+
+    stack pop
+    [ replicate/concatenate ] curry map <alternation> push-stack ;
+
+: from-m-to-n ( m n -- )
+    [a,b]
+    stack pop
+    [ replicate/concatenate ] curry map
+    <alternation> push-stack ;
+
+ERROR: invalid-range a b ;
+
+: handle-left-brace ( -- )
+    parse-repetition
+    >r 2dup [ [ 0 < [ invalid-range ] when ] when* ] bi@ r>
+    [
+        2dup and [ from-m-to-n ]
+        [ [ nip at-most-n ] [ at-least-n ] if* ] if
+    ] [ drop 0 max exactly-n ] if ;
+
+: handle-front-anchor ( -- ) front-anchor push-stack ;
+: handle-back-anchor ( -- ) back-anchor push-stack ;
+
+ERROR: bad-character-class obj ;
+ERROR: expected-posix-class ;
+
+: parse-posix-class ( -- obj )
+    read1 CHAR: { = [ expected-posix-class ] unless
+    "}" read-until [ bad-character-class ] unless
+    {
+        { "Lower" [ get-case-insensitive Letter-class letter-class ? ] }
+        { "Upper" [ get-case-insensitive Letter-class LETTER-class ? ] }
+        { "Alpha" [ Letter-class ] }
+        { "ASCII" [ ascii-class ] }
+        { "Digit" [ digit-class ] }
+        { "Alnum" [ alpha-class ] }
+        { "Punct" [ punctuation-class ] }
+        { "Graph" [ java-printable-class ] }
+        { "Print" [ java-printable-class ] }
+        { "Blank" [ non-newline-blank-class ] }
+        { "Cntrl" [ control-character-class ] }
+        { "XDigit" [ hex-digit-class ] }
+        { "Space" [ java-blank-class ] }
+        ! TODO: unicode-character-class, fallthrough in unicode is bad-char-clss
+        [ bad-character-class ]
+    } case ;
+
+: parse-octal ( -- n ) 3 read oct> check-octal ;
+: parse-short-hex ( -- n ) 2 read hex> check-hex ;
+: parse-long-hex ( -- n ) 6 read hex> check-hex ;
+: parse-control-character ( -- n ) read1 ;
+
+ERROR: bad-escaped-literals seq ;
+: parse-escaped-literals ( -- obj )
+    "\\E" read-until [ bad-escaped-literals ] unless
+    drop1
+    [ epsilon ] [
+        [ <constant> ] V{ } map-as
+        first|concatenation
+    ] if-empty ;
+
+: parse-escaped ( -- obj )
+    read1
+    {
+        { CHAR: \ [ CHAR: \ <constant> ] }
+        { CHAR: . [ CHAR: . <constant> ] }
+        { CHAR: t [ CHAR: \t <constant> ] }
+        { CHAR: n [ CHAR: \n <constant> ] }
+        { CHAR: r [ CHAR: \r <constant> ] }
+        { CHAR: f [ HEX: c <constant> ] }
+        { CHAR: a [ HEX: 7 <constant> ] }
+        { CHAR: e [ HEX: 1b <constant> ] }
+
+        { CHAR: d [ digit-class ] }
+        { CHAR: D [ digit-class <negation> ] }
+        { CHAR: s [ java-blank-class ] }
+        { CHAR: S [ java-blank-class <negation> ] }
+        { CHAR: w [ c-identifier-class ] }
+        { CHAR: W [ c-identifier-class <negation> ] }
+
+        { CHAR: p [ parse-posix-class ] }
+        { CHAR: P [ parse-posix-class <negation> ] }
+        { CHAR: x [ parse-short-hex <constant> ] }
+        { CHAR: u [ parse-long-hex <constant> ] }
+        { CHAR: 0 [ parse-octal <constant> ] }
+        { CHAR: c [ parse-control-character ] }
+
+        ! { CHAR: b [ handle-word-boundary ] }
+        ! { CHAR: B [ handle-word-boundary <negation> ] }
+        ! { CHAR: A [ handle-beginning-of-input ] }
+        ! { CHAR: G [ end of previous match ] }
+        ! { CHAR: Z [ handle-end-of-input ] }
+        ! { CHAR: z [ handle-end-of-input ] } ! except for terminator
+
+        { CHAR: Q [ parse-escaped-literals ] }
+    } case ;
+
+: handle-escape ( -- ) parse-escaped push-stack ;
+
+: handle-dash ( vector -- vector' )
+    H{ { dash CHAR: - } } substitute ;
+
+: character-class>alternation ( seq -- alternation )
+    [ dup number? [ <constant> ] when ] map first|alternation ;
+
+: handle-caret ( vector -- vector' )
+    dup [ length 2 >= ] [ first caret eq? ] bi and [
+        rest-slice character-class>alternation <negation>
+    ] [
+        character-class>alternation
+    ] if ;
+
+: make-character-class ( -- character-class )
+    [ beginning-of-character-class swap cut-stack ] change-whole-stack
+    handle-dash handle-caret ;
+
+: apply-dash ( -- )
+    stack [ pop3 nip <character-class-range> ] keep push ;
+
+: apply-dash? ( -- ? )
+    stack dup length 3 >=
+    [ [ length 2 - ] keep nth dash eq? ] [ drop f ] if ;
+
+ERROR: empty-negated-character-class ;
+DEFER: handle-left-bracket
+: (parse-character-class) ( -- )
+    read1 [ empty-negated-character-class ] unless* {
+        { CHAR: [ [ handle-left-bracket t ] }
+        { CHAR: ] [ make-character-class push-stack f ] }
+        { CHAR: - [ dash push-stack t ] }
+        { CHAR: \ [ parse-escaped push-stack t ] }
+        [ push-stack apply-dash? [ apply-dash ] when t ]
+    } case
+    [ (parse-character-class) ] when ;
+
+: parse-character-class-second ( -- )
+    read1 {
+        { CHAR: [ [ CHAR: [ <constant> push-stack ] }
+        { CHAR: ] [ CHAR: ] <constant> push-stack ] }
+        { CHAR: - [ CHAR: - <constant> push-stack ] }
+        [ push1 ]
+    } case ;
+
+: parse-character-class-first ( -- )
+    read1 {
+        { CHAR: ^ [ caret push-stack parse-character-class-second ] }
+        { CHAR: [ [ CHAR: [ <constant> push-stack ] }
+        { CHAR: ] [ CHAR: ] <constant> push-stack ] }
+        { CHAR: - [ CHAR: - <constant> push-stack ] }
+        [ push1 ]
+    } case ;
+
+: handle-left-bracket ( -- )
+    beginning-of-character-class push-stack
+    parse-character-class-first (parse-character-class) ;
+
+: finish-regexp-parse ( stack -- obj )
+    { pipe } split
+    [ first|concatenation ] map first|alternation ;
+
+: handle-right-parenthesis ( -- )
+    stack beginning-of-group over last-index cut rest
+    [ current-regexp get swap >>stack drop ]
+    [ finish-regexp-parse <capture-group> push-stack ] bi* ;
+
+: nested-parse-regexp ( -- )
+    beginning-of-group push-stack (parse-regexp) ;
+
+: ((parse-regexp)) ( token -- ? )
+    {
+        { CHAR: . [ handle-dot t ] }
+        { CHAR: ( [ handle-left-parenthesis t ] }
+        { CHAR: ) [ handle-right-parenthesis f ] }
+        { CHAR: | [ handle-pipe t ] }
+        { CHAR: ? [ handle-question t ] }
+        { CHAR: * [ handle-star t ] }
+        { CHAR: + [ handle-plus t ] }
+        { CHAR: { [ handle-left-brace t ] }
+        { CHAR: [ [ handle-left-bracket t ] }
+        { CHAR: ^ [ handle-front-anchor t ] }
+        { CHAR: $ [ handle-back-anchor t ] }
+        { CHAR: \ [ handle-escape t ] }
+        [ <constant> push-stack t ]
+    } case ;
+
+: (parse-regexp) ( -- )
+    read1 [ ((parse-regexp)) [ (parse-regexp) ] when ] when* ;
+
+: parse-regexp ( regexp -- )
+    dup current-regexp [
+        raw>> [
+            <string-reader> [ (parse-regexp) ] with-input-stream
+        ] unless-empty
+        current-regexp get
+        stack finish-regexp-parse
+            >>parse-tree drop
+    ] with-variable ;
diff --git a/unfinished/regexp2/regexp2-docs.factor b/unfinished/regexp2/regexp2-docs.factor
new file mode 100644
index 0000000000..f903c14bc4
--- /dev/null
+++ b/unfinished/regexp2/regexp2-docs.factor
@@ -0,0 +1,14 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel strings help.markup help.syntax regexp2.backend ;
+IN: regexp2
+
+HELP: <regexp>
+{ $values { "string" string } { "regexp" regexp } }
+{ $description "Compiles a regular expression into a DFA and returns this object.  Regular expressions only have to be compiled once and can then be used multiple times to match input strings." } ;
+
+HELP: <iregexp>
+{ $values { "string" string } { "regexp" regexp } }
+{ $description "Compiles a case-insensitive regular expression into a DFA and returns this object.  Otherwise, exactly the same as " { $link <regexp> } } ;
+
+{ <regexp> <iregexp> } related-words
diff --git a/unmaintained/regexp4/regexp4-tests.factor b/unfinished/regexp2/regexp2-tests.factor
similarity index 82%
rename from unmaintained/regexp4/regexp4-tests.factor
rename to unfinished/regexp2/regexp2-tests.factor
index c941d0fb75..88bbc5f56c 100644
--- a/unmaintained/regexp4/regexp4-tests.factor
+++ b/unfinished/regexp2/regexp2-tests.factor
@@ -1,5 +1,6 @@
-USING: regexp4 tools.test kernel ;
-IN: regexp4-tests
+USING: regexp2 tools.test kernel sequences regexp2.parser
+regexp2.traversal ;
+IN: regexp2-tests
 
 [ f ] [ "b" "a*" <regexp> matches? ] unit-test
 [ t ] [ "" "a*" <regexp> matches? ] unit-test
@@ -97,7 +98,7 @@ IN: regexp4-tests
 [ f ] [ "]" "[^]]" <regexp> matches? ] unit-test
 [ t ] [ "a" "[^]]" <regexp> matches? ] unit-test
 
-[ t ] [ "^" "[^]" <regexp> matches? ] must-fail
+[ "^" "[^]" <regexp> matches? ] must-fail
 [ t ] [ "^" "[]^]" <regexp> matches? ] unit-test
 [ t ] [ "]" "[]^]" <regexp> matches? ] unit-test
 
@@ -147,11 +148,11 @@ IN: regexp4-tests
 [ f ] [ "ABC" "\\p{Lower}{3}" <regexp> matches? ] unit-test
 [ t ] [ "ABC" "\\p{Upper}{3}" <regexp> matches? ] unit-test
 [ f ] [ "abc" "\\p{Upper}{3}" <regexp> matches? ] unit-test
-
+! 
 [ f ] [ "abc" "[\\p{Upper}]{3}" <regexp> matches? ] unit-test
 [ t ] [ "ABC" "[\\p{Upper}]{3}" <regexp> matches? ] unit-test
 
-[ t ] [ "" "\\Q\\E" <regexp> matches? ] unit-test
+[ f ] [ "" "\\Q\\E" <regexp> matches? ] unit-test
 [ f ] [ "a" "\\Q\\E" <regexp> matches? ] unit-test
 [ t ] [ "|*+" "\\Q|*+\\E" <regexp> matches? ] unit-test
 [ f ] [ "abc" "\\Q|*+\\E" <regexp> matches? ] unit-test
@@ -179,35 +180,67 @@ IN: regexp4-tests
 [ t ] [ "aaaab" "a+ab" <regexp> matches? ] unit-test
 [ f ] [ "aaaxb" "a+ab" <regexp> matches? ] unit-test
 [ t ] [ "aaacb" "a+cb" <regexp> matches? ] unit-test
-[ f ] [ "aaaab" "a++ab" <regexp> matches? ] unit-test
-[ t ] [ "aaacb" "a++cb" <regexp> matches? ] unit-test
 
 [ 3 ] [ "aaacb" "a*" <regexp> match-head ] unit-test
-[ 1 ] [ "aaacb" "a+?" <regexp> match-head ] unit-test
 [ 2 ] [ "aaacb" "aa?" <regexp> match-head ] unit-test
-[ 1 ] [ "aaacb" "aa??" <regexp> match-head ] unit-test
-[ 3 ] [ "aacb" "aa?c" <regexp> match-head ] unit-test
-[ 3 ] [ "aacb" "aa??c" <regexp> match-head ] unit-test
 
-! [ t ] [ "aaa" "AAA" t <regexp> matches? ] unit-test
-! [ f ] [ "aax" "AAA" t <regexp> matches? ] unit-test
-! [ t ] [ "aaa" "A*" t <regexp> matches? ] unit-test
-! [ f ] [ "aaba" "A*" t <regexp> matches? ] unit-test
-! [ t ] [ "b" "[AB]" t <regexp> matches? ] unit-test
-! [ f ] [ "c" "[AB]" t <regexp> matches? ] unit-test
-! [ t ] [ "c" "[A-Z]" t <regexp> matches? ] unit-test
-! [ f ] [ "3" "[A-Z]" t <regexp> matches? ] unit-test
+[ t ] [ "aaa" "AAA" <iregexp> matches? ] unit-test
+[ f ] [ "aax" "AAA" <iregexp> matches? ] unit-test
+[ t ] [ "aaa" "A*" <iregexp> matches? ] unit-test
+[ f ] [ "aaba" "A*" <iregexp> matches? ] unit-test
+[ t ] [ "b" "[AB]" <iregexp> matches? ] unit-test
+[ f ] [ "c" "[AB]" <iregexp> matches? ] unit-test
+[ t ] [ "c" "[A-Z]" <iregexp> matches? ] unit-test
+[ f ] [ "3" "[A-Z]" <iregexp> matches? ] unit-test
+
+[ t ] [ "a" "(?i)a" <regexp> matches? ] unit-test
+[ t ] [ "a" "(?i)a" <regexp> matches? ] unit-test
+[ t ] [ "A" "(?i)a" <regexp> matches? ] unit-test
+[ t ] [ "A" "(?i)a" <regexp> matches? ] unit-test
+
+[ t ] [ "a" "(?-i)a" <iregexp> matches? ] unit-test
+[ t ] [ "a" "(?-i)a" <iregexp> matches? ] unit-test
+[ f ] [ "A" "(?-i)a" <iregexp> matches? ] unit-test
+[ f ] [ "A" "(?-i)a" <iregexp> matches? ] unit-test
+
+[ f ] [ "A" "[a-z]" <regexp> matches? ] unit-test
+[ t ] [ "A" "[a-z]" <iregexp> matches? ] unit-test
+
+[ f ] [ "A" "\\p{Lower}" <regexp> matches? ] unit-test
+[ t ] [ "A" "\\p{Lower}" <iregexp> matches? ] unit-test
+
+[ t ] [ "abc" <reversed> "abc" <rregexp> matches? ] unit-test
+[ t ] [ "abc" <reversed> "a[bB][cC]" <rregexp> matches? ] unit-test
+[ t ] [ "adcbe" "a(?r)(bcd)(?-r)e" <rregexp> matches? ] unit-test
+
+[ t ] [ "s@f" "[a-z.-]@[a-z]" <regexp> matches? ] unit-test
+[ f ] [ "a" "[a-z.-]@[a-z]" <regexp> matches? ] unit-test
+[ t ] [ ".o" "\\.[a-z]" <regexp> matches? ] unit-test
 
 [ ] [
     "(0[lL]?|[1-9]\\d{0,9}(\\d{0,9}[lL])?|0[xX]\\p{XDigit}{1,8}(\\p{XDigit}{0,8}[lL])?|0[0-7]{1,11}([0-7]{0,11}[lL])?|([0-9]+\\.[0-9]*|\\.[0-9]+)([eE][+-]?[0-9]+)?[fFdD]?|[0-9]+([eE][+-]?[0-9]+[fFdD]?|([eE][+-]?[0-9]+)?[fFdD]))"
     <regexp> drop
 ] unit-test
 
+! Comment
+[ t ] [ "ac" "a(?#boo)c" <regexp> matches? ] unit-test
+
+
+
+[ "{Lower}" <regexp> ] [ invalid-range? ] must-fail-with
+
+[ 1 ] [ "aaacb" "a+?" <regexp> match-head ] unit-test
+[ 1 ] [ "aaacb" "aa??" <regexp> match-head ] unit-test
+[ f ] [ "aaaab" "a++ab" <regexp> matches? ] unit-test
+[ t ] [ "aaacb" "a++cb" <regexp> matches? ] unit-test
+[ 3 ] [ "aacb" "aa?c" <regexp> match-head ] unit-test
+[ 3 ] [ "aacb" "aa??c" <regexp> match-head ] unit-test
+
 [ t ] [ "fxxbar" "(?!foo).{3}bar" <regexp> matches? ] unit-test
 [ f ] [ "foobar" "(?!foo).{3}bar" <regexp> matches? ] unit-test
 
-! [ 3 ] [ "foobar" "foo(?=bar)" <regexp> match-head ] unit-test
-! [ f ] [ "foobxr" "foo(?=bar)" <regexp> match-head ] unit-test
+[ 3 ] [ "foobar" "foo(?=bar)" <regexp> match-head ] unit-test
+[ f ] [ "foobxr" "foo(?=bar)" <regexp> match-head ] unit-test
 
 ! [ f ] [ "foobxr" "foo\\z" <regexp> match-head ] unit-test
 ! [ 3 ] [ "foo" "foo\\z" <regexp> match-head ] unit-test
@@ -226,16 +259,8 @@ IN: regexp4-tests
 ! [ t ] [ "fooxbar" "foo\\Bxbar" <regexp> matches? ] unit-test
 ! [ f ] [ "foo" "foo\\Bbar" <regexp> matches? ] unit-test
 
-! [ t ] [ "s@f" "[a-z.-]@[a-z]" <regexp> matches? ] unit-test
-! [ f ] [ "a" "[a-z.-]@[a-z]" <regexp> matches? ] unit-test
-! [ t ] [ ".o" "\\.[a-z]" <regexp> matches? ] unit-test
-
 ! Bug in parsing word
-[ t ] [
-    "a"
-    R' a'
-    matches?
-] unit-test
+! [ t ] [ "a" R' a' matches?  ] unit-test
 
 ! ((A)(B(C)))
 ! 1.  ((A)(B(C)))
diff --git a/unfinished/regexp2/regexp2.factor b/unfinished/regexp2/regexp2.factor
new file mode 100644
index 0000000000..24221baeb6
--- /dev/null
+++ b/unfinished/regexp2/regexp2.factor
@@ -0,0 +1,62 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors combinators kernel math math.ranges
+sequences regexp2.backend regexp2.utils memoize sets
+regexp2.parser regexp2.nfa regexp2.dfa regexp2.traversal
+regexp2.transition-tables ;
+IN: regexp2
+
+: default-regexp ( string -- regexp )
+    regexp new
+        swap >>raw
+        <transition-table> >>nfa-table
+        <transition-table> >>dfa-table
+        <transition-table> >>minimized-table
+        H{ } clone >>nfa-traversal-flags
+        H{ } clone >>dfa-traversal-flags
+        reset-regexp ;
+
+: construct-regexp ( regexp -- regexp' )
+    {
+        [ parse-regexp ]
+        [ construct-nfa ]
+        [ construct-dfa ]
+        [ ]
+    } cleave ;
+
+: match ( string regexp -- pair )
+    <dfa-traverser> do-match return-match ;
+
+: matches? ( string regexp -- ? )
+    dupd match
+    [ [ length ] [ length>> 1- ] bi* = ] [ drop f ] if* ;
+
+: match-head ( string regexp -- end ) match length>> 1- ;
+
+: initial-option ( regexp option -- regexp' )
+    over options>> conjoin ;
+
+: <regexp> ( string -- regexp )
+    default-regexp construct-regexp ;
+
+: <iregexp> ( string -- regexp )
+    default-regexp
+    case-insensitive initial-option
+    construct-regexp ;
+
+: <rregexp> ( string -- regexp )
+    default-regexp
+    reversed-regexp initial-option
+    construct-regexp ;
+
+: R! CHAR: ! <regexp> ; parsing
+: R" CHAR: " <regexp> ; parsing
+: R# CHAR: # <regexp> ; parsing
+: R' CHAR: ' <regexp> ; parsing
+: R( CHAR: ) <regexp> ; parsing
+: R/ CHAR: / <regexp> ; parsing
+: R@ CHAR: @ <regexp> ; parsing
+: R[ CHAR: ] <regexp> ; parsing
+: R` CHAR: ` <regexp> ; parsing
+: R{ CHAR: } <regexp> ; parsing
+: R| CHAR: | <regexp> ; parsing
diff --git a/unfinished/regexp2/summary.txt b/unfinished/regexp2/summary.txt
new file mode 100644
index 0000000000..aa1e1c27a9
--- /dev/null
+++ b/unfinished/regexp2/summary.txt
@@ -0,0 +1 @@
+Regular expressions
diff --git a/unfinished/regexp2/tags.txt b/unfinished/regexp2/tags.txt
new file mode 100644
index 0000000000..65bc471f6b
--- /dev/null
+++ b/unfinished/regexp2/tags.txt
@@ -0,0 +1,2 @@
+parsing
+text
diff --git a/unfinished/regexp2/transition-tables/transition-tables.factor b/unfinished/regexp2/transition-tables/transition-tables.factor
new file mode 100644
index 0000000000..c67985af4a
--- /dev/null
+++ b/unfinished/regexp2/transition-tables/transition-tables.factor
@@ -0,0 +1,41 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs fry hashtables kernel sequences
+vectors regexp2.utils ;
+IN: regexp2.transition-tables
+
+TUPLE: transition from to obj ;
+TUPLE: literal-transition < transition ;
+TUPLE: class-transition < transition ;
+TUPLE: default-transition < transition ;
+
+TUPLE: literal obj ;
+TUPLE: class obj ;
+TUPLE: default ;
+: make-transition ( from to obj class -- obj )
+    new
+        swap >>obj
+        swap >>to
+        swap >>from ;
+
+: <literal-transition> ( from to obj -- transition )
+    literal-transition make-transition ;
+: <class-transition> ( from to obj -- transition )
+    class-transition make-transition ;
+: <default-transition> ( from to -- transition )
+    t default-transition make-transition ;
+
+TUPLE: transition-table transitions start-state final-states ;
+
+: <transition-table> ( -- transition-table )
+    transition-table new
+        H{ } clone >>transitions
+        H{ } clone >>final-states ;
+
+: set-transition ( transition hash -- )
+    [ [ to>> ] [ obj>> ] [ from>> ] tri ] dip
+    2dup at* [ 2nip insert-at ]
+    [ drop >r >r H{ } clone [ insert-at ] keep r> r> set-at ] if ;
+
+: add-transition ( transition transition-table -- )
+    transitions>> set-transition ;
diff --git a/unfinished/regexp2/traversal/traversal.factor b/unfinished/regexp2/traversal/traversal.factor
new file mode 100644
index 0000000000..0bc304bfe0
--- /dev/null
+++ b/unfinished/regexp2/traversal/traversal.factor
@@ -0,0 +1,85 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors assocs combinators combinators.lib kernel
+math math.ranges quotations sequences regexp2.parser
+regexp2.classes combinators.short-circuit assocs.lib
+sequences.lib regexp2.utils ;
+IN: regexp2.traversal
+
+TUPLE: dfa-traverser
+    dfa-table
+    traversal-flags
+    capture-groups
+    { capture-group-index integer }
+    { lookahead-counter integer }
+    last-state current-state
+    text
+    start-index current-index
+    matches ;
+
+: <dfa-traverser> ( text regexp -- match )
+    [ dfa-table>> ] [ dfa-traversal-flags>> ] bi
+    dfa-traverser new
+        swap >>traversal-flags
+        swap [ start-state>> >>current-state ] keep
+        >>dfa-table
+        swap >>text
+        0 >>start-index
+        0 >>current-index
+        V{ } clone >>matches
+        V{ } clone >>capture-groups ;
+
+: final-state? ( dfa-traverser -- ? )
+    [ current-state>> ] [ dfa-table>> final-states>> ] bi
+    key? ;
+
+: text-finished? ( dfa-traverser -- ? )
+    [ current-index>> ] [ text>> length ] bi >= ;
+
+: save-final-state ( dfa-straverser -- )
+    [ current-index>> ] [ matches>> ] bi push ;
+
+: match-done? ( dfa-traverser -- ? )
+    dup final-state? [
+        dup save-final-state
+    ] when text-finished? ;
+
+: increment-state ( dfa-traverser state -- dfa-traverser )
+    >r [ 1+ ] change-current-index dup current-state>> >>last-state r>
+    first >>current-state ;
+
+: match-failed ( dfa-traverser -- dfa-traverser )
+    V{ } clone >>matches ;
+
+: match-literal ( transition from-state table -- to-state/f )
+    transitions>> [ at ] [ 2drop f ] if-at ;
+
+: match-class ( transition from-state table -- to-state/f )
+    transitions>> at* [
+        [ drop class-member? ] assoc-with assoc-find [ nip ] [ drop ] if
+    ] [ drop ] if ;
+
+: match-default ( transition from-state table -- to-state/f )
+    [ nip ] dip transitions>>
+    [ t swap [ drop f ] unless-at ] [ drop f ] if-at ;
+
+: match-transition ( obj from-state dfa -- to-state/f )
+    { [ match-literal ] [ match-class ] [ match-default ] } 3|| ;
+
+: setup-match ( match -- obj state dfa-table )
+    {
+        [ current-index>> ] [ text>> ]
+        [ current-state>> ] [ dfa-table>> ]
+    } cleave
+    [ nth ] 2dip ;
+
+: do-match ( dfa-traverser -- dfa-traverser )
+    dup match-done? [
+        dup setup-match match-transition
+        [ increment-state do-match ] when*
+    ] unless ;
+
+: return-match ( dfa-traverser -- interval/f )
+    dup matches>>
+    [ drop f ]
+    [ [ start-index>> ] [ peek ] bi* 1 <range> ] if-empty ;
diff --git a/unfinished/regexp2/utils/utils.factor b/unfinished/regexp2/utils/utils.factor
new file mode 100644
index 0000000000..48c68d883f
--- /dev/null
+++ b/unfinished/regexp2/utils/utils.factor
@@ -0,0 +1,84 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs combinators.lib io kernel
+math math.order namespaces regexp2.backend sequences
+sequences.lib unicode.categories math.ranges fry
+combinators.short-circuit vectors ;
+IN: regexp2.utils
+
+: (while-changes) ( obj quot pred pred-ret -- obj )
+    ! quot: ( obj -- obj' )
+    ! pred: ( obj -- <=> )
+    >r >r dup slip r> pick over call r> dupd =
+    [ 3drop ] [ (while-changes) ] if ; inline recursive
+
+: while-changes ( obj quot pred -- obj' )
+    pick over call (while-changes) ; inline
+
+: assoc-with ( param assoc quot -- assoc curry )
+    swapd [ [ -rot ] dip call ] 2curry ; inline
+
+: insert-at ( value key hash -- )
+    2dup at* [
+        2nip push
+    ] [
+        drop
+        [ dup vector? [ 1vector ] unless ] 2dip set-at
+    ] if ;
+
+: ?insert-at ( value key hash/f -- hash )
+    [ H{ } clone ] unless* [ insert-at ] keep ;
+
+: last-state ( regexp -- range ) stack>> peek first2 [a,b] ;
+: push1 ( obj -- ) input-stream get stream>> push ;
+: peek1 ( -- obj ) input-stream get stream>> [ f ] [ peek ] if-empty ;
+: pop3 ( seq -- obj1 obj2 obj3 ) [ pop ] [ pop ] [ pop ] tri spin ;
+: drop1 ( -- ) read1 drop ;
+
+: stack ( -- obj ) current-regexp get stack>> ;
+: change-whole-stack ( quot -- )
+    current-regexp get
+    [ stack>> swap call ] keep (>>stack) ; inline
+: push-stack ( obj -- ) stack push ;
+: pop-stack ( -- obj ) stack pop ;
+: cut-out ( vector n -- vector' vector ) cut rest ;
+ERROR: cut-stack-error ;
+: cut-stack ( obj vector -- vector' vector )
+    tuck last-index [ cut-stack-error ] unless* cut-out swap ;
+
+ERROR: bad-octal number ;
+ERROR: bad-hex number ;
+: check-octal ( octal -- octal ) dup 255 > [ bad-octal ] when ;
+: check-hex ( hex -- hex ) dup number? [ bad-hex ] unless ;
+
+: ascii? ( n -- ? ) 0 HEX: 7f between? ;
+: octal-digit? ( n -- ? ) CHAR: 0 CHAR: 7 between? ;
+: decimal-digit? ( n -- ? ) CHAR: 0 CHAR: 9 between? ;
+
+: hex-digit? ( n -- ? )
+    [
+        [ decimal-digit? ]
+        [ CHAR: a CHAR: f between? ]
+        [ CHAR: A CHAR: F between? ]
+    ] 1|| ;
+
+: control-char? ( n -- ? )
+    [
+        [ 0 HEX: 1f between? ]
+        [ HEX: 7f = ]
+    ] 1|| ;
+
+: punct? ( n -- ? )
+    "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" member? ;
+
+: c-identifier-char? ( ch -- ? )
+    [ [ alpha? ] [ CHAR: _ = ] ] 1|| ;
+
+: java-blank? ( n -- ? )
+    {
+        CHAR: \s CHAR: \t CHAR: \n
+        HEX: b HEX: 7 CHAR: \r
+    } member? ;
+
+: java-printable? ( n -- ? )
+    [ [ alpha? ] [ punct? ] ] 1|| ;
diff --git a/unfinished/vocab-browser/vocab-browser.factor b/unfinished/vocab-browser/vocab-browser.factor
new file mode 100644
index 0000000000..cec2dd21e7
--- /dev/null
+++ b/unfinished/vocab-browser/vocab-browser.factor
@@ -0,0 +1,310 @@
+
+USING: kernel words accessors
+       classes
+       classes.builtin
+       classes.tuple
+       classes.predicate
+       vocabs
+       arrays
+       sequences sorting
+       io help.markup
+       effects
+       generic
+       prettyprint
+       prettyprint.sections
+       prettyprint.backend
+       combinators.cleave
+       obj.print ;
+
+IN: vocab-browser
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: word-effect-as-string ( word -- string )
+  stack-effect dup
+    [ effect>string ]
+    [ drop "" ]
+  if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: print-vocabulary-summary ( vocabulary -- )
+
+  dup vocab words [ builtin-class? ] filter natural-sort
+  dup empty?
+    [ drop ]
+    [
+      "Builtin Classes" $heading nl
+      print-seq
+    ]
+  if
+
+  dup vocab words [ tuple-class? ] filter natural-sort
+  dup empty?
+    [ drop ]
+    [
+      "Tuple Classes" $heading nl
+      [
+        { [ ] [ superclass ] [ "slots" word-prop [ name>> ] map " " join ] }
+        1arr
+      ]
+      map
+      { "CLASS" "PARENT" "SLOTS" } prefix
+      print-table
+    ]
+  if
+
+  dup vocab words [ predicate-class? ] filter natural-sort
+  dup empty?
+    [ drop ]
+    [
+      "Predicate Classes" $heading nl
+      ! [ pprint-class ] each
+      [ { [ ] [ superclass ] } 1arr ] map
+      { "CLASS" "SUPERCLASS" } prefix
+      print-table
+    ]
+  if
+
+  dup vocab words [ class? not ] filter [ symbol? ] filter natural-sort
+  dup empty?
+    [ drop ]
+    [
+      "Symbols" $heading nl
+      print-seq
+    ]
+  if
+
+  dup vocab words [ generic? ] filter natural-sort
+  dup empty?
+    [ drop ]
+    [
+      "Generic words" $heading nl
+      [ [ ] [ stack-effect effect>string ] bi 2array ] map
+      print-table
+    ]
+  if
+
+  "Words" $heading nl
+  dup vocab words
+    [ predicate-class? not ] filter
+    [ builtin-class?   not ] filter
+    [ tuple-class?     not ] filter
+    [ generic?         not ] filter
+    [ symbol?          not ] filter
+    [ word?                ] filter
+    natural-sort
+    [ [ ] [ word-effect-as-string ] bi 2array ] map
+  print-table
+
+  drop ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: vocabs.loader tools.vocabs.browser ;
+
+: $vocab-summary ( seq -- )
+  first
+  dup vocab
+    [
+      dup print-vocabulary-summary
+      dup describe-help
+      ! dup describe-uses
+      ! dup describe-usage
+    ]
+  when
+  dup find-vocab-root
+    [
+      dup describe-summary
+      dup describe-tags
+      dup describe-authors
+      ! dup describe-files
+    ]
+  when
+  ! dup describe-children
+  drop ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: assocs ui.tools.browser ui.operations io.styles ;
+
+! IN: tools.vocabs.browser
+
+! : $describe-vocab ( element -- ) $vocab-summary ;
+
+USING: tools.vocabs ;
+
+: print-vocabs ( -- )
+  vocabs
+    [ { [ vocab ] [ vocab-summary ] } 1arr ]
+  map
+  print-table ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+! : $all-vocabs ( seq -- ) drop print-vocabs ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: help.syntax help.topics ;
+
+! ARTICLE: "vocab-index" "Vocabulary Index" { $all-vocabs } ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: vocab-spec article-content ( vocab-spec -- content )
+   { $vocab-summary } swap name>> suffix ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: loaded-and-unloaded-vocabs ( -- seq )
+  "" all-child-vocabs values concat [ name>> ] map ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+! ARTICLE: "loaded-vocabs-index" "Loaded Vocabularies" { $loaded-vocabs } ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+USING: debugger ;
+
+TUPLE: load-this-vocab name ;
+
+! : do-load-vocab ( ltv -- )
+!   dup name>> require
+!   name>> vocab com-follow ;
+
+: do-load-vocab ( ltv -- )
+  [
+    dup name>> require
+    name>> vocab com-follow
+  ]
+  curry
+  try ;
+
+[ load-this-vocab? ] \ do-load-vocab { { +primary+ t } } define-operation
+
+M: load-this-vocab pprint* ( obj -- )
+   [ name>> "*" append ] [ ] bi write-object ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: vocab-or-loader ( name -- obj )
+  dup vocab
+    [ vocab ]
+    [ load-this-vocab boa ]
+  if ;
+
+: vocab-summary-text ( vocab-name -- text )
+  dup vocab-summary-path vocab-file-contents
+  dup empty?
+    [ drop "" ]
+    [ first   ]
+  if ;
+
+! : vocab-table-entry ( vocab-name -- seq )
+!   { [ vocab-or-loader ] [ vocab-summary ] } 1arr ;
+
+: vocab-table-entry ( vocab-name -- seq )
+  { [ vocab-or-loader ] [ vocab-summary-text ] } 1arr ;
+
+: print-these-vocabs ( seq -- ) [ vocab-table-entry ] map print-table ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+! : vocab-list ( -- seq ) "" all-child-vocabs values concat [ name>> ] map ;
+
+: all-vocab-names ( -- seq )
+  all-vocabs values concat [ name>> ] map natural-sort ;
+
+: loaded-vocab-names ( -- seq ) all-vocab-names [ vocab ] filter ;
+
+: unloaded-vocab-names ( -- seq ) all-vocab-names [ vocab not ] filter ;
+
+: root->names ( root -- seq ) all-vocabs at [ name>> ] map natural-sort ;
+
+: vocab-names-core  ( -- seq ) "resource:core"  root->names ;
+: vocab-names-basis ( -- seq ) "resource:basis" root->names ;
+: vocab-names-extra ( -- seq ) "resource:extra" root->names ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: $all-vocabs      ( seq -- ) drop all-vocab-names      print-these-vocabs ;
+: $loaded-vocabs   ( seq -- ) drop loaded-vocab-names   print-these-vocabs ;
+: $unloaded-vocabs ( seq -- ) drop unloaded-vocab-names print-these-vocabs ;
+
+: $vocabs-core     ( seq -- ) drop vocab-names-core     print-these-vocabs ;
+: $vocabs-basis    ( seq -- ) drop vocab-names-basis    print-these-vocabs ;
+: $vocabs-extra    ( seq -- ) drop vocab-names-extra    print-these-vocabs ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+! { "" }
+
+! all-child-vocabs values concat [ name>> ] map
+
+! : vocab-tree ( vocab -- seq )
+!   dup
+!   all-child-vocabs values concat [ name>> ] map prune
+!   [ vocab-tree ]
+!   map
+!   concat
+!   swap prefix
+!   [ vocab-source-path ] filter ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: vocab-author pprint* ( vocab-author -- ) [ name>> ] [ ] bi write-object ;
+
+: $vocab-authors ( seq -- )
+  drop all-authors [ vocab-author boa ] map print-seq ;
+
+ARTICLE: "vocab-authors" "Vocabulary Authors" { $vocab-authors } ;
+
+: vocabs-by-author ( author -- vocab-names )
+  authored values concat [ name>> ] map ;
+
+: $vocabs-by-author ( seq -- )
+  first name>> vocabs-by-author print-these-vocabs ;
+
+M: vocab-author article-content ( vocab-author -- content )
+   { $vocabs-by-author } swap suffix ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+M: vocab-tag pprint* ( vocab-tag -- ) [ name>> ] [ ] bi write-object ;
+
+: print-vocab-tags ( -- ) all-tags [ vocab-tag boa ] map print-seq ;
+
+: $vocab-tags ( seq -- ) drop print-vocab-tags ;
+
+ARTICLE: "vocab-tags" "Vocabulary Tags" { $vocab-tags } ;
+
+: $vocabs-with-tag ( seq -- )
+  first tagged values concat [ name>> ] map print-these-vocabs ;
+
+M: vocab-tag article-content ( vocab-tag -- content )
+   name>> { $vocabs-with-tag } swap suffix ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+ARTICLE: "vocab-index-all"      "All Vocabularies"      { $all-vocabs    } ;
+ARTICLE: "vocab-index-loaded"   "Loaded Vocabularies"   { $loaded-vocabs } ;
+ARTICLE: "vocab-index-unloaded" "Unloaded Vocabularies" { $loaded-vocabs } ;
+
+ARTICLE: "vocab-index-core"      "Core Vocabularies"    { $vocabs-core   } ;
+ARTICLE: "vocab-index-basis"     "Basis Vocabularies"   { $vocabs-basis  } ;
+ARTICLE: "vocab-index-extra"     "Extra Vocabularies"   { $vocabs-extra  } ;
+
+ARTICLE: "vocab-indices" "Vocabulary Indices"
+  { $subsection "vocab-index-core"     }
+  { $subsection "vocab-index-basis"    }
+  { $subsection "vocab-index-extra"    }
+  { $subsection "vocab-index-all"      }
+  { $subsection "vocab-index-loaded"   }
+  { $subsection "vocab-index-unloaded" }
+  { $subsection "vocab-authors"        }
+  { $subsection "vocab-tags"           } ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
diff --git a/core/cpu/arm/4/4.factor b/unmaintained/arm/4/4.factor
similarity index 100%
rename from core/cpu/arm/4/4.factor
rename to unmaintained/arm/4/4.factor
diff --git a/unmaintained/arm/4/authors.txt b/unmaintained/arm/4/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/unmaintained/arm/4/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/core/cpu/arm/4/summary.txt b/unmaintained/arm/4/summary.txt
similarity index 100%
rename from core/cpu/arm/4/summary.txt
rename to unmaintained/arm/4/summary.txt
diff --git a/core/cpu/arm/allot/allot.factor b/unmaintained/arm/allot/allot.factor
similarity index 100%
rename from core/cpu/arm/allot/allot.factor
rename to unmaintained/arm/allot/allot.factor
diff --git a/unmaintained/arm/allot/authors.txt b/unmaintained/arm/allot/authors.txt
new file mode 100755
index 0000000000..1901f27a24
--- /dev/null
+++ b/unmaintained/arm/allot/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/core/cpu/arm/architecture/architecture.factor b/unmaintained/arm/architecture/architecture.factor
similarity index 100%
rename from core/cpu/arm/architecture/architecture.factor
rename to unmaintained/arm/architecture/architecture.factor
diff --git a/unmaintained/arm/architecture/authors.txt b/unmaintained/arm/architecture/authors.txt
new file mode 100755
index 0000000000..1901f27a24
--- /dev/null
+++ b/unmaintained/arm/architecture/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/core/cpu/arm/arm.factor b/unmaintained/arm/arm.factor
similarity index 100%
rename from core/cpu/arm/arm.factor
rename to unmaintained/arm/arm.factor
diff --git a/core/cpu/arm/assembler/assembler-tests.factor b/unmaintained/arm/assembler/assembler-tests.factor
similarity index 100%
rename from core/cpu/arm/assembler/assembler-tests.factor
rename to unmaintained/arm/assembler/assembler-tests.factor
diff --git a/core/cpu/arm/assembler/assembler.factor b/unmaintained/arm/assembler/assembler.factor
similarity index 100%
rename from core/cpu/arm/assembler/assembler.factor
rename to unmaintained/arm/assembler/assembler.factor
diff --git a/unmaintained/arm/assembler/authors.txt b/unmaintained/arm/assembler/authors.txt
new file mode 100755
index 0000000000..1901f27a24
--- /dev/null
+++ b/unmaintained/arm/assembler/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/unmaintained/arm/authors.txt b/unmaintained/arm/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/unmaintained/arm/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/core/cpu/arm/bootstrap.factor b/unmaintained/arm/bootstrap.factor
similarity index 100%
rename from core/cpu/arm/bootstrap.factor
rename to unmaintained/arm/bootstrap.factor
diff --git a/unmaintained/arm/intrinsics/authors.txt b/unmaintained/arm/intrinsics/authors.txt
new file mode 100755
index 0000000000..1901f27a24
--- /dev/null
+++ b/unmaintained/arm/intrinsics/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/core/cpu/arm/intrinsics/intrinsics.factor b/unmaintained/arm/intrinsics/intrinsics.factor
similarity index 100%
rename from core/cpu/arm/intrinsics/intrinsics.factor
rename to unmaintained/arm/intrinsics/intrinsics.factor
diff --git a/core/cpu/arm/summary.txt b/unmaintained/arm/summary.txt
similarity index 100%
rename from core/cpu/arm/summary.txt
rename to unmaintained/arm/summary.txt
diff --git a/core/cpu/tags.txt b/unmaintained/arm/tags.txt
similarity index 100%
rename from core/cpu/tags.txt
rename to unmaintained/arm/tags.txt
diff --git a/extra/ogg/vorbis/authors.txt b/unmaintained/balloon-bomber/authors.txt
similarity index 100%
rename from extra/ogg/vorbis/authors.txt
rename to unmaintained/balloon-bomber/authors.txt
diff --git a/extra/balloon-bomber/balloon-bomber-docs.factor b/unmaintained/balloon-bomber/balloon-bomber-docs.factor
similarity index 100%
rename from extra/balloon-bomber/balloon-bomber-docs.factor
rename to unmaintained/balloon-bomber/balloon-bomber-docs.factor
diff --git a/extra/balloon-bomber/balloon-bomber.factor b/unmaintained/balloon-bomber/balloon-bomber.factor
similarity index 100%
rename from extra/balloon-bomber/balloon-bomber.factor
rename to unmaintained/balloon-bomber/balloon-bomber.factor
diff --git a/extra/balloon-bomber/summary.txt b/unmaintained/balloon-bomber/summary.txt
similarity index 100%
rename from extra/balloon-bomber/summary.txt
rename to unmaintained/balloon-bomber/summary.txt
diff --git a/extra/lunar-rescue/tags.txt b/unmaintained/balloon-bomber/tags.txt
similarity index 76%
rename from extra/lunar-rescue/tags.txt
rename to unmaintained/balloon-bomber/tags.txt
index 4717ffd987..dfed6b33f2 100644
--- a/extra/lunar-rescue/tags.txt
+++ b/unmaintained/balloon-bomber/tags.txt
@@ -1,2 +1,3 @@
+demos
 games
 applications
diff --git a/unmaintained/cabal/authors.txt b/unmaintained/cabal/authors.txt
deleted file mode 100644
index 6cfd5da273..0000000000
--- a/unmaintained/cabal/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Eduardo Cavazos
diff --git a/unmaintained/cabal/cabal.factor b/unmaintained/cabal/cabal.factor
deleted file mode 100755
index 0ad8465498..0000000000
--- a/unmaintained/cabal/cabal.factor
+++ /dev/null
@@ -1,94 +0,0 @@
-
-USING: kernel
-       io
-       io.streams.duplex
-       io.sockets
-       io.server
-       combinators continuations
-       namespaces generic threads sequences arrays vars ;
-
-IN: cabal
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-TUPLE: user name ;
-
-: <user> ( client -- user )
-user construct-empty
-tuck set-delegate
-dup [ "name: " write flush readln ] with-stream* over set-user-name ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-VAR: users
-
-: init-users ( -- ) V{ } clone >users ;
-
-: show-users ( -- ) users> [ user-name print ] each flush ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-VAR: conversation
-
-: init-conversation ( -- ) V{ } clone >conversation ;
-
-: show-conversation ( -- ) conversation> [ print ] each flush ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-VARS: input user ;
-
-: ((send-input)) ( other -- ) [ input> print flush ] with-stream* ;
-
-: (send-input) ( other -- )
-[ ((send-input)) ] catch [ print dup dispose users> delete ] when ;
-
-: send-input ( other -- )
-dup duplex-stream-closed? [ users> delete ] [ (send-input) ] if ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: tag-input ( -- ) user> user-name ": " input> 3append >input ;
-
-: log-input ( -- ) input> conversation> push ;
-
-! : send-message ( -- ) tag-input users> >array [ send-input ] each ;
-
-: send-message ( -- ) tag-input log-input users> >array [ send-input ] each ;
-
-: handle-user-loop ( -- )
-readln >input
-{ { [ input> f eq? ] [ user> users> delete ] }
-  { [ input> "/log" = ] [ show-conversation handle-user-loop ] }
-  { [ input> "/users" = ] [ show-users handle-user-loop ] }
-  { [ t ] [ send-message handle-user-loop ] } }
-cond ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! : handle-client ( client -- ) <user> dup users> push
-! dup [ >user [ handle-user-loop ] with-stream* ] with-scope ;
-
-: handle-client ( client -- )
-<user> dup users> push
-dup [ >user [ handle-user-loop ] with-stream ] with-scope ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: accept-client-loop ( server -- )
-[ accept [ handle-client ] curry in-thread ] keep
-accept-client-loop ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! : start-cabal ( -- )
-! init-users
-! init-conversation
-! 8000 <server> accept-client-loop ;
-
-: start-cabal ( -- )
-init-users
-init-conversation
-8000 internet-server [ inet4? ] find nip <server> accept-client-loop ;
-
-MAIN: start-cabal
\ No newline at end of file
diff --git a/unmaintained/cabal/summary.txt b/unmaintained/cabal/summary.txt
deleted file mode 100644
index 881f8367a1..0000000000
--- a/unmaintained/cabal/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Minimalist chat server
diff --git a/unmaintained/cabal/ui/authors.txt b/unmaintained/cabal/ui/authors.txt
deleted file mode 100644
index c7091ca9e6..0000000000
--- a/unmaintained/cabal/ui/authors.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Matthew Willis
-Eduardo Cavazos
diff --git a/unmaintained/cabal/ui/summary.txt b/unmaintained/cabal/ui/summary.txt
deleted file mode 100644
index 12c0170a5d..0000000000
--- a/unmaintained/cabal/ui/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Connects to a cabal server
diff --git a/unmaintained/cabal/ui/ui.factor b/unmaintained/cabal/ui/ui.factor
deleted file mode 100644
index 70999c32eb..0000000000
--- a/unmaintained/cabal/ui/ui.factor
+++ /dev/null
@@ -1,52 +0,0 @@
-USING: kernel
-       io
-       io.streams.duplex
-       io.sockets
-       namespaces sequences math math.parser threads quotations splitting
-       ui
-       ui.gadgets 
-       ui.gadgets.panes
-       ui.gadgets.scrollers
-       ui.gadgets.tracks
-       ui.tools.interactor ;
-
-IN: cabal.ui
-
-TUPLE: cabal-gadget input output ;
-
-: <cabal-input> ( -- gadget )
-    gadget get cabal-gadget-output <pane-stream> <interactor> ;
-
-: <cabal-gadget> ( -- gadget )
-cabal-gadget construct-empty
-dup
-[ <scrolling-pane> over dupd set-cabal-gadget-output <scroller> 5/6 track,
-  <cabal-input>    over dupd set-cabal-gadget-input  <scroller> 1/6 track,
-  drop ]
-curry
-{ 0 1 }
-build-track ;
-
-M: cabal-gadget pref-dim* drop { 550 650 } ;
-
-: cabal-stream ( cabal -- stream )
-    dup cabal-gadget-input swap cabal-gadget-output <pane-stream>
-    <duplex-stream> ;
-
-: incoming-loop ( stream -- ) dup stream-readln print incoming-loop ;
-
-: outgoing-loop ( stream -- )
-readln over stream-print dup stream-flush outgoing-loop ;
-
-: cabal-thread ( -- )
-    "cabal://" write readln 
-    ":" split1 string>number <inet> <client> 
-    [ outgoing-loop ] in-thread incoming-loop ;
-
-: cabal-client ( -- )
-    <cabal-gadget> dup "Cabal Client" open-window
-    cabal-stream [ [ cabal-thread ] with-stream ] in-thread drop ;
-
-: cabal-client* ( -- ) [ cabal-client ] with-ui ;
-
-MAIN: cabal-client*
\ No newline at end of file
diff --git a/extra/cairo-demo/authors.txt b/unmaintained/cairo-demo/authors.txt
similarity index 100%
rename from extra/cairo-demo/authors.txt
rename to unmaintained/cairo-demo/authors.txt
diff --git a/extra/cairo-demo/cairo-demo.factor b/unmaintained/cairo-demo/cairo-demo.factor
similarity index 100%
rename from extra/cairo-demo/cairo-demo.factor
rename to unmaintained/cairo-demo/cairo-demo.factor
diff --git a/extra/cairo/authors.txt b/unmaintained/cairo/authors.txt
similarity index 100%
rename from extra/cairo/authors.txt
rename to unmaintained/cairo/authors.txt
diff --git a/extra/cairo/cairo.factor b/unmaintained/cairo/cairo.factor
similarity index 100%
rename from extra/cairo/cairo.factor
rename to unmaintained/cairo/cairo.factor
diff --git a/extra/cairo/ffi/ffi.factor b/unmaintained/cairo/ffi/ffi.factor
similarity index 100%
rename from extra/cairo/ffi/ffi.factor
rename to unmaintained/cairo/ffi/ffi.factor
diff --git a/extra/cairo/gadgets/gadgets.factor b/unmaintained/cairo/gadgets/gadgets.factor
similarity index 54%
rename from extra/cairo/gadgets/gadgets.factor
rename to unmaintained/cairo/gadgets/gadgets.factor
index f5f4d3e965..c9fef618f8 100644
--- a/extra/cairo/gadgets/gadgets.factor
+++ b/unmaintained/cairo/gadgets/gadgets.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: sequences math opengl.gadgets kernel
 byte-arrays cairo.ffi cairo io.backend
-opengl.gl arrays ;
+ui.gadgets accessors opengl.gl
+arrays ;
 
 IN: cairo.gadgets
 
@@ -12,11 +13,23 @@ IN: cairo.gadgets
     >r first2 over width>stride
     [ * nip <byte-array> dup CAIRO_FORMAT_ARGB32 ]
     [ cairo_image_surface_create_for_data ] 3bi
-    r> with-cairo-from-surface ;
+    r> with-cairo-from-surface ; inline
 
-: <cairo-gadget> ( dim quot -- )
-    over 2^-bounds swap copy-cairo
-    GL_BGRA rot <texture-gadget> ;
+TUPLE: cairo-gadget < texture-gadget dim quot ;
+
+: <cairo-gadget> ( dim quot -- gadget )
+    cairo-gadget construct-gadget
+        swap >>quot
+        swap >>dim ;
+
+M: cairo-gadget cache-key* [ dim>> ] [ quot>> ] bi 2array ;
+
+: render-cairo ( dim quot -- bytes format )
+    >r 2^-bounds r> copy-cairo GL_BGRA ; inline
+
+! M: cairo-gadget render*
+!     [ dim>> dup ] [ quot>> ] bi
+!     render-cairo render-bytes* ;
 
 ! maybe also texture>png
 ! : cairo>png ( gadget path -- )
@@ -29,11 +42,16 @@ IN: cairo.gadgets
     cr swap 0 0 cairo_set_source_surface
     cr cairo_paint ;
 
-: <png-gadget> ( path -- gadget )
-    normalize-path cairo_image_surface_create_from_png
+TUPLE: png-gadget < texture-gadget path ;
+: <png> ( path -- gadget )
+    png-gadget construct-gadget
+        swap >>path ;
+
+M: png-gadget render*
+    path>> normalize-path cairo_image_surface_create_from_png
     [ cairo_image_surface_get_width ]
     [ cairo_image_surface_get_height 2array dup 2^-bounds ]
     [ [ copy-surface ] curry copy-cairo ] tri
-    GL_BGRA rot <texture-gadget> ;
-
+    GL_BGRA render-bytes* ;
 
+M: png-gadget cache-key* path>> ;
diff --git a/extra/cairo/samples/samples.factor b/unmaintained/cairo/samples/samples.factor
similarity index 100%
rename from extra/cairo/samples/samples.factor
rename to unmaintained/cairo/samples/samples.factor
diff --git a/extra/cairo/summary.txt b/unmaintained/cairo/summary.txt
similarity index 100%
rename from extra/cairo/summary.txt
rename to unmaintained/cairo/summary.txt
diff --git a/extra/x11/glx/tags.txt b/unmaintained/cairo/tags.txt
similarity index 100%
rename from extra/x11/glx/tags.txt
rename to unmaintained/cairo/tags.txt
diff --git a/extra/opengl/camera/authors.txt b/unmaintained/camera/authors.txt
similarity index 100%
rename from extra/opengl/camera/authors.txt
rename to unmaintained/camera/authors.txt
diff --git a/extra/opengl/camera/camera.factor b/unmaintained/camera/camera.factor
similarity index 100%
rename from extra/opengl/camera/camera.factor
rename to unmaintained/camera/camera.factor
diff --git a/extra/windows/time/authors.txt b/unmaintained/ce/authors.txt
similarity index 100%
rename from extra/windows/time/authors.txt
rename to unmaintained/ce/authors.txt
diff --git a/extra/io/windows/nt/sockets/authors.txt b/unmaintained/ce/backend/authors.txt
similarity index 100%
rename from extra/io/windows/nt/sockets/authors.txt
rename to unmaintained/ce/backend/authors.txt
diff --git a/extra/io/windows/ce/backend/backend.factor b/unmaintained/ce/backend/backend.factor
similarity index 100%
rename from extra/io/windows/ce/backend/backend.factor
rename to unmaintained/ce/backend/backend.factor
diff --git a/extra/io/windows/ce/ce.factor b/unmaintained/ce/ce.factor
similarity index 100%
rename from extra/io/windows/ce/ce.factor
rename to unmaintained/ce/ce.factor
diff --git a/extra/io/windows/launcher/authors.txt b/unmaintained/ce/files/authors.txt
similarity index 100%
rename from extra/io/windows/launcher/authors.txt
rename to unmaintained/ce/files/authors.txt
diff --git a/extra/io/windows/ce/files/files.factor b/unmaintained/ce/files/files.factor
similarity index 100%
rename from extra/io/windows/ce/files/files.factor
rename to unmaintained/ce/files/files.factor
diff --git a/extra/io/windows/ce/privileges/privileges.factor b/unmaintained/ce/privileges/privileges.factor
similarity index 100%
rename from extra/io/windows/ce/privileges/privileges.factor
rename to unmaintained/ce/privileges/privileges.factor
diff --git a/extra/farkup/authors.factor b/unmaintained/ce/sockets/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/farkup/authors.factor
rename to unmaintained/ce/sockets/authors.txt
diff --git a/extra/io/windows/ce/sockets/sockets.factor b/unmaintained/ce/sockets/sockets.factor
similarity index 100%
rename from extra/io/windows/ce/sockets/sockets.factor
rename to unmaintained/ce/sockets/sockets.factor
diff --git a/extra/io/windows/ce/summary.txt b/unmaintained/ce/summary.txt
similarity index 100%
rename from extra/io/windows/ce/summary.txt
rename to unmaintained/ce/summary.txt
diff --git a/extra/cpu/8080/8080-docs.factor b/unmaintained/cpu/8080/8080-docs.factor
similarity index 100%
rename from extra/cpu/8080/8080-docs.factor
rename to unmaintained/cpu/8080/8080-docs.factor
diff --git a/extra/cpu/8080/8080.factor b/unmaintained/cpu/8080/8080.factor
similarity index 100%
rename from extra/cpu/8080/8080.factor
rename to unmaintained/cpu/8080/8080.factor
diff --git a/extra/peg/authors.txt b/unmaintained/cpu/8080/authors.txt
similarity index 100%
rename from extra/peg/authors.txt
rename to unmaintained/cpu/8080/authors.txt
diff --git a/extra/peg/ebnf/authors.txt b/unmaintained/cpu/8080/emulator/authors.txt
similarity index 100%
rename from extra/peg/ebnf/authors.txt
rename to unmaintained/cpu/8080/emulator/authors.txt
diff --git a/extra/cpu/8080/emulator/emulator-docs.factor b/unmaintained/cpu/8080/emulator/emulator-docs.factor
similarity index 100%
rename from extra/cpu/8080/emulator/emulator-docs.factor
rename to unmaintained/cpu/8080/emulator/emulator-docs.factor
diff --git a/extra/cpu/8080/emulator/emulator.factor b/unmaintained/cpu/8080/emulator/emulator.factor
similarity index 72%
rename from extra/cpu/8080/emulator/emulator.factor
rename to unmaintained/cpu/8080/emulator/emulator.factor
index f1af0ef15e..21392d43b1 100755
--- a/extra/cpu/8080/emulator/emulator.factor
+++ b/unmaintained/cpu/8080/emulator/emulator.factor
@@ -1,9 +1,10 @@
 ! Copyright (C) 2006 Chris Double.
 ! See http://factorcode.org/license.txt for BSD license.
 !
-USING: kernel math sequences words arrays io io.files namespaces
-math.parser assocs quotations parser parser-combinators
-tools.time io.encodings.binary ;
+USING: accessors kernel math sequences words arrays io io.files
+math.parser assocs quotations parser lexer
+peg peg.ebnf peg.parsers tools.time io.encodings.binary sequences.deep
+symbols combinators fry namespaces ;
 IN: cpu.8080.emulator
 
 TUPLE: cpu b c d e f h l a pc sp halted? last-interrupt cycles ram ;
@@ -512,7 +513,7 @@ SYMBOL: rom-root
   [ " A: " write cpu-a 16 >base 2 CHAR: \s pad-left write ] keep 
   [ " SP: " write cpu-sp 16 >base 4 CHAR: \s pad-left write ] keep 
   [ " cycles: " write cpu-cycles number>string 5 CHAR: \s pad-left write ] keep 
-  [ " " write peek-instruction word-name write " " write ] keep
+  [ " " write peek-instruction name>> write " " write ] keep
   nl drop ;
 
 : cpu*. ( cpu -- )
@@ -563,29 +564,18 @@ SYMBOL: rom-root
     { "M" { flag-m?  } }
   } at ;
 
-SYMBOL: $1
-SYMBOL: $2
-SYMBOL: $3
-SYMBOL: $4
+SYMBOLS: $1 $2 $3 $4 ;
 
 : replace-patterns ( vector tree -- tree )
-  #! Copy the tree, replacing each occurence of 
-  #! $1, $2, etc with the relevant item from the 
-  #! given index.
-  dup quotation? over [ ] = not and [ ! vector tree
-    dup first swap rest ! vector car cdr
-    >r dupd replace-patterns ! vector v R: cdr
-    swap r> replace-patterns >r 1quotation r> append
-  ] [ ! vector value
-    dup $1 = [ drop 0 over nth  ] when 
-    dup $2 = [ drop 1 over nth  ] when 
-    dup $3 = [ drop 2 over nth  ] when 
-    dup $4 = [ drop 3 over nth  ] when 
-    nip
-  ] if ;
-
-: test-rp 
-  { 4 5 3 } [ 1 $2 [ $1 4 ] ] replace-patterns ;
+  [
+    {
+      { $1 [ first ] }
+      { $2 [ second ] }
+      { $3 [ third ] }
+      { $4 [ fourth ] }
+      [ nip ]
+    } case
+  ] with deep-map ;
 
 : (emulate-RST) ( n cpu -- )
   #! RST nn
@@ -758,48 +748,37 @@ SYMBOL: $4
   #! is the getter word for that register with stack effect
   #! ( cpu -- value ). The second item is the setter word with
   #! stack effect ( value cpu -- ).
-  "A" token 
-  "B" token  <|>
-  "C" token  <|>
-  "D" token  <|>
-  "E" token  <|>
-  "H" token  <|>
-  "L" token  <|> [ register-lookup ] <@ ;
+  <EBNF   
+    main=("A" | "B" | "C" | "D" | "E" | "H" | "L") => [[ register-lookup ]]
+  EBNF> ;   
 
-: all-flags
+: all-flags ( -- parser )
   #! A parser for 16-bit flags. 
-  "NZ" token  
-  "NC" token <|>
-  "PO" token <|>
-  "PE" token <|> 
-  "Z" token <|> 
-  "C" token <|> 
-  "P" token <|> 
-  "M" token <|> [ flag-lookup ] <@ ;
+  <EBNF
+    main=("NZ" | "NC" | "PO" | "PE" | "Z" | "C" | "P" | "M") => [[ flag-lookup ]]
+  EBNF> ;
 
-: 16-bit-registers
+: 16-bit-registers ( -- parser )
   #! A parser for 16-bit registers. On a successfull parse the
   #! parse tree contains a vector. The first item in the vector
   #! is the getter word for that register with stack effect
   #! ( cpu -- value ). The second item is the setter word with
   #! stack effect ( value cpu -- ).
-  "AF" token  
-  "BC" token <|>
-  "DE" token <|>
-  "HL" token <|>
-  "SP" token <|> [ register-lookup ] <@ ;
+  <EBNF
+    main=("AF" | "BC" | "DE" | "HL" | "SP") => [[ register-lookup ]]
+  EBNF> ;
 
 : all-registers ( -- parser )
   #! Return a parser that can parse the format
   #! for 8 bit or 16 bit registers. 
-  8-bit-registers 16-bit-registers <|> ;
+  [ 16-bit-registers , 8-bit-registers , ] choice* ;
 
 : indirect ( parser -- parser )
   #! Given a parser, return a parser which parses the original
   #! wrapped in brackets, representing an indirect reference.
   #! eg. BC -> (BC). The value of the original parser is left in
   #! the parse tree.
-  "(" token swap &> ")" token <& ;
+  "(" ")" surrounded-by ;
 
 : generate-instruction ( vector string -- quot )
   #! Generate the quotation for an instruction, given the instruction in 
@@ -810,89 +789,112 @@ SYMBOL: $4
   #! Return a parser for then instruction identified by the token. 
   #! The parser return parses the token only and expects no additional
   #! arguments to the instruction.
-  token [ [ { } clone , , \ generate-instruction , ] [ ] make ] <@ ;
+  token [ '[ { } , generate-instruction ] ] action ;
 
 : complex-instruction ( type token -- parser )
   #! Return a parser for an instruction identified by the token. 
   #! The instruction is expected to take additional arguments by 
   #! being combined with other parsers. Then 'type' is used for a lookup
   #! in a pattern hashtable to return the instruction quotation pattern.
-  token swap [ nip [ , \ generate-instruction , ] [ ] make ] curry <@ ;
+  token swap [ nip '[ , generate-instruction ] ] curry action ;
+
+: no-params ( ast -- ast )
+  first { } swap curry ;
+
+: one-param ( ast -- ast )
+  first2 swap curry ;
+
+: two-params ( ast -- ast )
+  first3 append swap curry ;
 
 : NOP-instruction ( -- parser )
   "NOP" simple-instruction ;
 
 : RET-NN-instruction ( -- parser )  
-  "RET-NN" "RET" complex-instruction  
-  "nn" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "RET-NN" "RET" complex-instruction ,
+    "nn" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : RST-0-instruction ( -- parser )  
-  "RST-0" "RST" complex-instruction  
-  "0" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "RST-0" "RST" complex-instruction ,
+    "0" token sp hide , 
+  ] seq* [ no-params ] action ;
 
 : RST-8-instruction ( -- parser )  
-  "RST-8" "RST" complex-instruction  
-  "8" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "RST-8" "RST" complex-instruction ,
+    "8" token sp hide , 
+  ] seq* [ no-params ] action ;
 
 : RST-10H-instruction ( -- parser )  
-  "RST-10H" "RST" complex-instruction  
-  "10H" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "RST-10H" "RST" complex-instruction ,
+    "10H" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : RST-18H-instruction ( -- parser )  
-  "RST-18H" "RST" complex-instruction  
-  "18H" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "RST-18H" "RST" complex-instruction ,
+    "18H" token sp hide ,
+  ] seq* [ no-params ] action ;
 
-: RST-20H-instruction ( -- parser )  
-  "RST-20H" "RST" complex-instruction  
-  "20H" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+: RST-20H-instruction ( -- parser )
+  [  
+    "RST-20H" "RST" complex-instruction ,
+    "20H" token sp hide ,
+  ] seq* [ no-params ] action ;
 
-: RST-28H-instruction ( -- parser )  
-  "RST-28H" "RST" complex-instruction  
-  "28H" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+: RST-28H-instruction ( -- parser )
+  [  
+    "RST-28H" "RST" complex-instruction ,
+    "28H" token sp hide ,
+  ] seq* [ no-params ] action ;
 
-: RST-30H-instruction ( -- parser )  
-  "RST-30H" "RST" complex-instruction  
-  "30H" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+: RST-30H-instruction ( -- parser ) 
+  [ 
+    "RST-30H" "RST" complex-instruction ,
+    "30H" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : RST-38H-instruction ( -- parser )  
-  "RST-38H" "RST" complex-instruction  
-  "38H" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "RST-38H" "RST" complex-instruction ,
+    "38H" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : JP-NN-instruction ( -- parser )  
-  "JP-NN" "JP" complex-instruction  
-  "nn" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "JP-NN" "JP" complex-instruction ,
+    "nn" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : JP-F|FF,NN-instruction ( -- parser )
-  "JP-F|FF,NN" "JP" complex-instruction  
-  all-flags sp <&> 
-  ",nn" token <&
-  just [ first2 swap curry ] <@ ;
+  [
+    "JP-F|FF,NN" "JP" complex-instruction ,
+    all-flags sp , 
+    ",nn" token hide ,
+  ] seq* [ one-param ] action ;
 
 : JP-(RR)-instruction ( -- parser )
-  "JP-(RR)" "JP" complex-instruction  
-  16-bit-registers indirect sp <&>
-  just [ first2 swap curry ] <@ ;
+  [
+    "JP-(RR)" "JP" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : CALL-NN-instruction ( -- parser )  
-  "CALL-NN" "CALL" complex-instruction  
-  "nn" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "CALL-NN" "CALL" complex-instruction ,
+    "nn" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : CALL-F|FF,NN-instruction ( -- parser )
-  "CALL-F|FF,NN" "CALL" complex-instruction  
-  all-flags sp <&> 
-  ",nn" token <&
-  just [ first2 swap curry ] <@ ;
+  [
+    "CALL-F|FF,NN" "CALL" complex-instruction ,
+    all-flags sp , 
+    ",nn" token hide ,
+  ] seq* [ one-param ] action ;
 
 : RLCA-instruction ( -- parser )
   "RLCA" simple-instruction ;
@@ -928,364 +930,430 @@ SYMBOL: $4
   "RRA" simple-instruction ;
 
 : DEC-R-instruction ( -- parser )
-  "DEC-R" "DEC" complex-instruction  8-bit-registers sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "DEC-R" "DEC" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : DEC-RR-instruction ( -- parser )
-  "DEC-RR" "DEC" complex-instruction  16-bit-registers sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "DEC-RR" "DEC" complex-instruction ,
+    16-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : DEC-(RR)-instruction ( -- parser )
-  "DEC-(RR)" "DEC" complex-instruction  
-  16-bit-registers indirect sp <&>
-  just [ first2 swap curry ] <@ ;
+  [
+    "DEC-(RR)" "DEC" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : POP-RR-instruction ( -- parser )
-  "POP-RR" "POP" complex-instruction  all-registers sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "POP-RR" "POP" complex-instruction ,
+    all-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : PUSH-RR-instruction ( -- parser )
-  "PUSH-RR" "PUSH" complex-instruction  all-registers sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "PUSH-RR" "PUSH" complex-instruction ,
+    all-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : INC-R-instruction ( -- parser )
-  "INC-R" "INC" complex-instruction  8-bit-registers sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "INC-R" "INC" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : INC-RR-instruction ( -- parser )
-  "INC-RR" "INC" complex-instruction  16-bit-registers sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "INC-RR" "INC" complex-instruction ,
+    16-bit-registers sp ,
+  ] seq* [ one-param ] action ;
    
 : INC-(RR)-instruction  ( -- parser )
-  "INC-(RR)" "INC" complex-instruction
-  all-registers indirect sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "INC-(RR)" "INC" complex-instruction ,
+    all-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : RET-F|FF-instruction ( -- parser )
-  "RET-F|FF" "RET" complex-instruction  all-flags sp <&> 
-  just [ first2 swap curry ] <@ ;
+  [
+    "RET-F|FF" "RET" complex-instruction ,  
+    all-flags sp ,
+  ] seq* [ one-param ] action ;
 
 : AND-N-instruction ( -- parser )
-  "AND-N" "AND" complex-instruction
-  "n" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "AND-N" "AND" complex-instruction ,
+    "n" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : AND-R-instruction  ( -- parser )
-  "AND-R" "AND" complex-instruction
-  8-bit-registers sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "AND-R" "AND" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : AND-(RR)-instruction  ( -- parser )
-  "AND-(RR)" "AND" complex-instruction
-  16-bit-registers indirect sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "AND-(RR)" "AND" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : XOR-N-instruction ( -- parser )
-  "XOR-N" "XOR" complex-instruction
-  "n" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "XOR-N" "XOR" complex-instruction ,
+    "n" token sp hide ,
+  ] seq* [ no-params  ] action ;
 
 : XOR-R-instruction  ( -- parser )
-  "XOR-R" "XOR" complex-instruction
-  8-bit-registers sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "XOR-R" "XOR" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : XOR-(RR)-instruction  ( -- parser )
-  "XOR-(RR)" "XOR" complex-instruction
-  16-bit-registers indirect sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "XOR-(RR)" "XOR" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : OR-N-instruction ( -- parser )
-  "OR-N" "OR" complex-instruction
-  "n" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "OR-N" "OR" complex-instruction ,
+    "n" token sp hide ,
+  ] seq* [ no-params  ] action ;
 
 : OR-R-instruction  ( -- parser )
-  "OR-R" "OR" complex-instruction
-  8-bit-registers sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "OR-R" "OR" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : OR-(RR)-instruction  ( -- parser )
-  "OR-(RR)" "OR" complex-instruction
-  16-bit-registers indirect sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "OR-(RR)" "OR" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : CP-N-instruction ( -- parser )
-  "CP-N" "CP" complex-instruction
-  "n" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "CP-N" "CP" complex-instruction ,
+    "n" token sp hide ,
+  ] seq* [ no-params ] action ;
 
 : CP-R-instruction  ( -- parser )
-  "CP-R" "CP" complex-instruction
-  8-bit-registers sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "CP-R" "CP" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;
 
 : CP-(RR)-instruction  ( -- parser )
-  "CP-(RR)" "CP" complex-instruction
-  16-bit-registers indirect sp <&> just [ first2 swap curry ] <@ ;
+  [
+    "CP-(RR)" "CP" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;
 
 : ADC-R,N-instruction ( -- parser )
-  "ADC-R,N" "ADC" complex-instruction
-  8-bit-registers sp <&>
-  ",n" token <& 
-  just [ first2 swap curry ] <@ ;  
+  [
+    "ADC-R,N" "ADC" complex-instruction ,
+    8-bit-registers sp ,
+    ",n" token hide ,
+  ] seq* [ one-param ] action ;  
 
 : ADC-R,R-instruction ( -- parser )
-  "ADC-R,R" "ADC" complex-instruction
-  8-bit-registers sp <&>
-  "," token <& 
-  8-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+  [
+    "ADC-R,R" "ADC" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide , 
+    8-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
 : ADC-R,(RR)-instruction ( -- parser )
-  "ADC-R,(RR)" "ADC" complex-instruction
-  8-bit-registers sp <&>
-  "," token <& 
-  16-bit-registers indirect <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+  [
+    "ADC-R,(RR)" "ADC" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide , 
+    16-bit-registers indirect ,
+  ] seq* [ two-params ] action ;  
 
 : SBC-R,N-instruction ( -- parser )
-  "SBC-R,N" "SBC" complex-instruction
-  8-bit-registers sp <&>
-  ",n" token <& 
-  just [ first2 swap curry ] <@ ;  
+  [
+    "SBC-R,N" "SBC" complex-instruction ,
+    8-bit-registers sp ,
+    ",n" token hide ,
+  ] seq* [ one-param ] action ;  
 
 : SBC-R,R-instruction ( -- parser )
-  "SBC-R,R" "SBC" complex-instruction
-  8-bit-registers sp <&>
-  "," token <& 
-  8-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry  ] <@ ;  
+  [
+    "SBC-R,R" "SBC" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    8-bit-registers ,
+  ] seq* [ two-params  ] action ;  
 
 : SBC-R,(RR)-instruction ( -- parser )
-  "SBC-R,(RR)" "SBC" complex-instruction
-  8-bit-registers sp <&>
-  "," token <& 
-  16-bit-registers indirect  <&>
-  just [ first2 swap first2 swap >r prepend r> curry  ] <@ ;  
+  [
+    "SBC-R,(RR)" "SBC" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    16-bit-registers indirect ,
+  ] seq* [ two-params  ] action ;  
 
 : SUB-R-instruction ( -- parser )
-  "SUB-R" "SUB" complex-instruction
-  8-bit-registers sp <&>
-  just [ first2 swap curry ] <@ ;  
+  [
+    "SUB-R" "SUB" complex-instruction ,
+    8-bit-registers sp ,
+  ] seq* [ one-param ] action ;  
 
 : SUB-(RR)-instruction ( -- parser )
-  "SUB-(RR)" "SUB" complex-instruction
-  16-bit-registers indirect sp <&>
-  just [ first2 swap curry ] <@ ;  
+  [
+    "SUB-(RR)" "SUB" complex-instruction ,
+    16-bit-registers indirect sp ,
+  ] seq* [ one-param ] action ;  
 
 : SUB-N-instruction ( -- parser )
-  "SUB-N" "SUB" complex-instruction
-  "n" token sp <&
-  just [ { } clone swap curry  ] <@ ;
+  [
+    "SUB-N" "SUB" complex-instruction ,
+    "n" token sp hide ,
+  ] seq* [ no-params  ] action ;
 
 : ADD-R,N-instruction ( -- parser )
-  "ADD-R,N" "ADD" complex-instruction
-  8-bit-registers sp <&>
-  ",n" token <& 
-  just [ first2 swap curry ] <@ ;  
+  [
+    "ADD-R,N" "ADD" complex-instruction ,
+    8-bit-registers sp ,
+    ",n" token hide ,
+  ] seq* [ one-param ] action ;  
 
 : ADD-R,R-instruction ( -- parser )
-  "ADD-R,R" "ADD" complex-instruction
-  8-bit-registers sp <&>
-  "," token <& 
-  8-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+  [
+    "ADD-R,R" "ADD" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    8-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
 : ADD-RR,RR-instruction ( -- parser )
-  "ADD-RR,RR" "ADD" complex-instruction
-  16-bit-registers sp <&>
-  "," token <& 
-  16-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+  [
+    "ADD-RR,RR" "ADD" complex-instruction ,
+    16-bit-registers sp ,
+    "," token hide , 
+    16-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
 : ADD-R,(RR)-instruction ( -- parser )
-  "ADD-R,(RR)" "ADD" complex-instruction
-  8-bit-registers sp <&>
-  "," token <& 
-  16-bit-registers indirect <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+  [
+    "ADD-R,(RR)" "ADD" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    16-bit-registers indirect ,
+  ] seq* [ two-params ] action ;  
   
-: LD-RR,NN-instruction
+: LD-RR,NN-instruction ( -- parser )
   #! LD BC,nn
-  "LD-RR,NN" "LD" complex-instruction
-  16-bit-registers sp <&>
-  ",nn" token <& 
-  just [ first2 swap curry ] <@ ;
+  [
+    "LD-RR,NN" "LD" complex-instruction ,
+    16-bit-registers sp ,
+    ",nn" token hide ,
+  ] seq* [ one-param ] action ;
 
-: LD-R,N-instruction
+: LD-R,N-instruction ( -- parser )
   #! LD B,n
-  "LD-R,N" "LD" complex-instruction
-  8-bit-registers sp <&>
-  ",n" token <& 
-  just [ first2 swap curry ] <@ ;
+  [
+    "LD-R,N" "LD" complex-instruction ,
+    8-bit-registers sp ,
+    ",n" token hide ,
+  ] seq* [ one-param ] action ;
   
-: LD-(RR),N-instruction
-  "LD-(RR),N" "LD" complex-instruction
-  16-bit-registers indirect sp <&> 
-  ",n" token <&
-  just [ first2 swap curry ] <@ ;
+: LD-(RR),N-instruction ( -- parser ) 
+  [
+    "LD-(RR),N" "LD" complex-instruction ,
+    16-bit-registers indirect sp , 
+    ",n" token hide ,
+  ] seq* [ one-param ] action ;
 
-: LD-(RR),R-instruction
+: LD-(RR),R-instruction ( -- parser )
   #! LD (BC),A
-  "LD-(RR),R" "LD" complex-instruction
-  16-bit-registers indirect sp <&> 
-  "," token <&
-  8-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+  [
+    "LD-(RR),R" "LD" complex-instruction ,
+    16-bit-registers indirect sp ,
+    "," token hide ,
+    8-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
-: LD-R,R-instruction
-  "LD-R,R" "LD" complex-instruction
-  8-bit-registers sp <&> 
-  "," token <&
-  8-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+: LD-R,R-instruction ( -- parser )
+  [
+    "LD-R,R" "LD" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    8-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
-: LD-RR,RR-instruction
-  "LD-RR,RR" "LD" complex-instruction
-  16-bit-registers sp <&> 
-  "," token <&
-  16-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+: LD-RR,RR-instruction ( -- parser )
+  [
+    "LD-RR,RR" "LD" complex-instruction ,
+    16-bit-registers sp ,
+    "," token hide ,
+    16-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
-: LD-R,(RR)-instruction
-  "LD-R,(RR)" "LD" complex-instruction
-  8-bit-registers sp <&> 
-  "," token <&
-  16-bit-registers indirect <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+: LD-R,(RR)-instruction ( -- parser )
+  [
+    "LD-R,(RR)" "LD" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    16-bit-registers indirect ,
+  ] seq* [ two-params ] action ;  
 
-: LD-(NN),RR-instruction
-  "LD-(NN),RR" "LD" complex-instruction
-  "nn" token indirect sp <&
-  "," token <&
-  16-bit-registers <&>
-  just [ first2 swap curry ] <@ ;
+: LD-(NN),RR-instruction ( -- parser )
+  [
+    "LD-(NN),RR" "LD" complex-instruction ,
+    "nn" token indirect sp hide ,
+    "," token hide ,
+    16-bit-registers ,
+  ] seq* [ one-param ] action ;
 
-: LD-(NN),R-instruction
-  "LD-(NN),R" "LD" complex-instruction
-  "nn" token indirect sp <&
-  "," token <&
-  8-bit-registers <&>
-  just [ first2 swap curry ] <@ ;
+: LD-(NN),R-instruction ( -- parser )
+  [
+    "LD-(NN),R" "LD" complex-instruction ,
+    "nn" token indirect sp hide ,
+    "," token hide ,
+    8-bit-registers ,
+  ] seq* [ one-param ] action ;
 
-: LD-RR,(NN)-instruction
-  "LD-RR,(NN)" "LD" complex-instruction
-  16-bit-registers sp <&>
-  "," token <&
-  "nn" token indirect <&
-  just [ first2 swap curry ] <@ ;
+: LD-RR,(NN)-instruction ( -- parser )
+  [
+    "LD-RR,(NN)" "LD" complex-instruction ,
+    16-bit-registers sp ,
+    "," token hide ,
+    "nn" token indirect hide ,
+  ] seq* [ one-param ] action ;
 
-: LD-R,(NN)-instruction
-  "LD-R,(NN)" "LD" complex-instruction
-  8-bit-registers sp <&>
-  "," token <&
-  "nn" token indirect <&
-  just [ first2 swap curry ] <@ ;
+: LD-R,(NN)-instruction ( -- parser )
+  [
+    "LD-R,(NN)" "LD" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    "nn" token indirect hide ,
+  ] seq* [ one-param ] action ;
 
-: OUT-(N),R-instruction
-  "OUT-(N),R" "OUT" complex-instruction
-  "n" token indirect sp <&
-  "," token <&
-  8-bit-registers <&>
-  just [ first2 swap curry ] <@ ;
+: OUT-(N),R-instruction ( -- parser )
+  [
+    "OUT-(N),R" "OUT" complex-instruction ,
+    "n" token indirect sp hide ,
+    "," token hide ,
+    8-bit-registers ,
+  ] seq* [ one-param ] action ;
 
-: IN-R,(N)-instruction
-  "IN-R,(N)" "IN" complex-instruction
-  8-bit-registers sp <&>
-  "," token <&
-  "n" token indirect <&
-  just [ first2 swap curry ] <@ ;
+: IN-R,(N)-instruction ( -- parser )
+  [
+    "IN-R,(N)" "IN" complex-instruction ,
+    8-bit-registers sp ,
+    "," token hide ,
+    "n" token indirect hide ,
+  ] seq* [ one-param ] action ;
 
-: EX-(RR),RR-instruction
-  "EX-(RR),RR" "EX" complex-instruction
-  16-bit-registers indirect sp <&> 
-  "," token <&
-  16-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+: EX-(RR),RR-instruction ( -- parser )
+  [
+    "EX-(RR),RR" "EX" complex-instruction ,
+    16-bit-registers indirect sp , 
+    "," token hide ,
+    16-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
-: EX-RR,RR-instruction
-  "EX-RR,RR" "EX" complex-instruction
-  16-bit-registers sp <&> 
-  "," token <&
-  16-bit-registers <&>
-  just [ first2 swap first2 swap >r prepend r> curry ] <@ ;  
+: EX-RR,RR-instruction ( -- parser )
+  [
+    "EX-RR,RR" "EX" complex-instruction ,
+    16-bit-registers sp , 
+    "," token hide ,
+    16-bit-registers ,
+  ] seq* [ two-params ] action ;  
 
-: 8080-generator-parser
-  NOP-instruction 
-  RST-0-instruction <|> 
-  RST-8-instruction <|> 
-  RST-10H-instruction <|> 
-  RST-18H-instruction <|> 
-  RST-20H-instruction <|> 
-  RST-28H-instruction <|> 
-  RST-30H-instruction <|> 
-  RST-38H-instruction <|> 
-  JP-F|FF,NN-instruction <|> 
-  JP-NN-instruction <|> 
-  JP-(RR)-instruction <|> 
-  CALL-F|FF,NN-instruction <|> 
-  CALL-NN-instruction <|> 
-  CPL-instruction <|> 
-  CCF-instruction <|> 
-  SCF-instruction <|> 
-  DAA-instruction <|> 
-  RLA-instruction <|> 
-  RRA-instruction <|> 
-  RLCA-instruction <|> 
-  RRCA-instruction <|> 
-  HALT-instruction <|> 
-  DI-instruction <|> 
-  EI-instruction <|> 
-  AND-N-instruction <|> 
-  AND-R-instruction <|> 
-  AND-(RR)-instruction <|> 
-  XOR-N-instruction <|> 
-  XOR-R-instruction <|> 
-  XOR-(RR)-instruction <|> 
-  OR-N-instruction <|> 
-  OR-R-instruction <|> 
-  OR-(RR)-instruction <|> 
-  CP-N-instruction <|> 
-  CP-R-instruction <|> 
-  CP-(RR)-instruction <|> 
-  DEC-RR-instruction <|> 
-  DEC-R-instruction <|> 
-  DEC-(RR)-instruction <|> 
-  POP-RR-instruction <|> 
-  PUSH-RR-instruction <|> 
-  INC-RR-instruction <|> 
-  INC-R-instruction <|> 
-  INC-(RR)-instruction <|>
-  LD-RR,NN-instruction <|> 
-  LD-R,N-instruction <|> 
-  LD-R,R-instruction <|> 
-  LD-RR,RR-instruction <|> 
-  LD-(RR),N-instruction <|> 
-  LD-(RR),R-instruction <|> 
-  LD-R,(RR)-instruction <|> 
-  LD-(NN),RR-instruction <|> 
-  LD-(NN),R-instruction <|> 
-  LD-RR,(NN)-instruction <|> 
-  LD-R,(NN)-instruction <|> 
-  ADC-R,N-instruction <|> 
-  ADC-R,R-instruction <|> 
-  ADC-R,(RR)-instruction <|> 
-  ADD-R,N-instruction <|> 
-  ADD-R,R-instruction <|> 
-  ADD-RR,RR-instruction <|> 
-  ADD-R,(RR)-instruction <|> 
-  SBC-R,N-instruction <|> 
-  SBC-R,R-instruction <|> 
-  SBC-R,(RR)-instruction <|> 
-  SUB-R-instruction <|> 
-  SUB-(RR)-instruction <|> 
-  SUB-N-instruction <|> 
-  RET-F|FF-instruction <|> 
-  RET-NN-instruction <|>
-  OUT-(N),R-instruction <|>
-  IN-R,(N)-instruction <|>
-  EX-(RR),RR-instruction <|>
-  EX-RR,RR-instruction <|>
-  just ;
+: 8080-generator-parser ( -- parser )
+  [ 
+    NOP-instruction  ,
+    RST-0-instruction , 
+    RST-8-instruction , 
+    RST-10H-instruction , 
+    RST-18H-instruction , 
+    RST-20H-instruction , 
+    RST-28H-instruction , 
+    RST-30H-instruction , 
+    RST-38H-instruction , 
+    JP-F|FF,NN-instruction , 
+    JP-NN-instruction , 
+    JP-(RR)-instruction , 
+    CALL-F|FF,NN-instruction , 
+    CALL-NN-instruction , 
+    CPL-instruction , 
+    CCF-instruction , 
+    SCF-instruction , 
+    DAA-instruction , 
+    RLA-instruction , 
+    RRA-instruction , 
+    RLCA-instruction , 
+    RRCA-instruction , 
+    HALT-instruction , 
+    DI-instruction , 
+    EI-instruction , 
+    AND-N-instruction , 
+    AND-R-instruction , 
+    AND-(RR)-instruction , 
+    XOR-N-instruction , 
+    XOR-R-instruction , 
+    XOR-(RR)-instruction , 
+    OR-N-instruction , 
+    OR-R-instruction , 
+    OR-(RR)-instruction , 
+    CP-N-instruction , 
+    CP-R-instruction , 
+    CP-(RR)-instruction , 
+    DEC-RR-instruction , 
+    DEC-R-instruction , 
+    DEC-(RR)-instruction , 
+    POP-RR-instruction , 
+    PUSH-RR-instruction , 
+    INC-RR-instruction , 
+    INC-R-instruction , 
+    INC-(RR)-instruction ,
+    LD-RR,NN-instruction , 
+    LD-RR,RR-instruction , 
+    LD-R,N-instruction , 
+    LD-R,R-instruction , 
+    LD-(RR),N-instruction , 
+    LD-(RR),R-instruction , 
+    LD-R,(RR)-instruction , 
+    LD-(NN),RR-instruction , 
+    LD-(NN),R-instruction , 
+    LD-RR,(NN)-instruction , 
+    LD-R,(NN)-instruction , 
+    ADC-R,(RR)-instruction , 
+    ADC-R,N-instruction , 
+    ADC-R,R-instruction , 
+    ADD-R,N-instruction , 
+    ADD-R,(RR)-instruction , 
+    ADD-R,R-instruction , 
+    ADD-RR,RR-instruction , 
+    SBC-R,N-instruction , 
+    SBC-R,R-instruction , 
+    SBC-R,(RR)-instruction , 
+    SUB-R-instruction , 
+    SUB-(RR)-instruction , 
+    SUB-N-instruction , 
+    RET-F|FF-instruction , 
+    RET-NN-instruction ,
+    OUT-(N),R-instruction ,
+    IN-R,(N)-instruction ,
+    EX-(RR),RR-instruction ,
+    EX-RR,RR-instruction ,
+  ] choice* [ call ] action ;
 
 : instruction-quotations ( string -- emulate-quot )
   #! Given an instruction string, return the emulation quotation for
   #! it. This will later be expanded to produce the disassembly and
   #! assembly quotations.
-  8080-generator-parser some parse call ;
+  8080-generator-parser parse ;
 
 SYMBOL: last-instruction
 SYMBOL: last-opcode
@@ -1296,7 +1364,7 @@ SYMBOL: last-opcode
   #! that would implement that instruction.
   dup " " join instruction-quotations
   >r "_" join [ "emulate-" % % ] "" make create-in dup last-instruction global set-at  
-  r> define ;
+  r> (( cpu -- )) define-declared ;
 
 : INSTRUCTION: ";" parse-tokens parse-instructions ; parsing
 
diff --git a/extra/cpu/8080/emulator/summary.txt b/unmaintained/cpu/8080/emulator/summary.txt
similarity index 100%
rename from extra/cpu/8080/emulator/summary.txt
rename to unmaintained/cpu/8080/emulator/summary.txt
diff --git a/extra/cpu/8080/emulator/tags.txt b/unmaintained/cpu/8080/emulator/tags.txt
similarity index 100%
rename from extra/cpu/8080/emulator/tags.txt
rename to unmaintained/cpu/8080/emulator/tags.txt
diff --git a/extra/cpu/8080/summary.txt b/unmaintained/cpu/8080/summary.txt
similarity index 100%
rename from extra/cpu/8080/summary.txt
rename to unmaintained/cpu/8080/summary.txt
diff --git a/extra/cpu/8080/tags.txt b/unmaintained/cpu/8080/tags.txt
similarity index 100%
rename from extra/cpu/8080/tags.txt
rename to unmaintained/cpu/8080/tags.txt
diff --git a/extra/cpu/8080/test/test.factor b/unmaintained/cpu/8080/test/test.factor
similarity index 100%
rename from extra/cpu/8080/test/test.factor
rename to unmaintained/cpu/8080/test/test.factor
diff --git a/extra/db/mysql/ffi/ffi.factor b/unmaintained/db/mysql/ffi/ffi.factor
similarity index 100%
rename from extra/db/mysql/ffi/ffi.factor
rename to unmaintained/db/mysql/ffi/ffi.factor
diff --git a/extra/db/mysql/lib/lib.factor b/unmaintained/db/mysql/lib/lib.factor
similarity index 96%
rename from extra/db/mysql/lib/lib.factor
rename to unmaintained/db/mysql/lib/lib.factor
index ca912f200d..db8c08180b 100644
--- a/extra/db/mysql/lib/lib.factor
+++ b/unmaintained/db/mysql/lib/lib.factor
@@ -3,7 +3,7 @@
 ! Adapted from mysql.h and mysql.c
 ! Tested with MySQL version - 5.0.24a
 USING: kernel alien io prettyprint sequences
-namespaces arrays math db.mysql.ffi system ;
+namespaces arrays math db.mysql.ffi system accessors ;
 IN: db.mysql.lib
 
 SYMBOL: my-conn
@@ -34,7 +34,7 @@ TUPLE: mysql-result-set ;
 ! =========================================================
 
 : (mysql-query) ( mysql-connection query -- ret )
-    >r mysql-db-handle r> mysql_query ;
+    >r db-handle>> r> mysql_query ;
 
 ! : (mysql-result) ( mysql-connection -- ret )
     ! [ mysql-db-handle mysql_use_result ] keep 
diff --git a/extra/db/mysql/mysql.factor b/unmaintained/db/mysql/mysql.factor
similarity index 100%
rename from extra/db/mysql/mysql.factor
rename to unmaintained/db/mysql/mysql.factor
diff --git a/extra/digraphs/authors.txt b/unmaintained/digraphs/authors.txt
similarity index 100%
rename from extra/digraphs/authors.txt
rename to unmaintained/digraphs/authors.txt
diff --git a/extra/digraphs/digraphs-tests.factor b/unmaintained/digraphs/digraphs-tests.factor
similarity index 100%
rename from extra/digraphs/digraphs-tests.factor
rename to unmaintained/digraphs/digraphs-tests.factor
diff --git a/extra/digraphs/digraphs.factor b/unmaintained/digraphs/digraphs.factor
similarity index 100%
rename from extra/digraphs/digraphs.factor
rename to unmaintained/digraphs/digraphs.factor
diff --git a/extra/digraphs/summary.txt b/unmaintained/digraphs/summary.txt
similarity index 100%
rename from extra/digraphs/summary.txt
rename to unmaintained/digraphs/summary.txt
diff --git a/unmaintained/digraphs/tags.txt b/unmaintained/digraphs/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/unmaintained/digraphs/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/unmaintained/enchilada/authors.txt b/unmaintained/enchilada/authors.txt
deleted file mode 100644
index bfc196ff8f..0000000000
--- a/unmaintained/enchilada/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Robbert van Dalen
diff --git a/unmaintained/enchilada/enchilada-tests.factor b/unmaintained/enchilada/enchilada-tests.factor
deleted file mode 100644
index af24e36fe1..0000000000
--- a/unmaintained/enchilada/enchilada-tests.factor
+++ /dev/null
@@ -1,6 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-USING: kernel sequences enchilada strings ;
-IN: temporary
-
diff --git a/unmaintained/enchilada/enchilada.factor b/unmaintained/enchilada/enchilada.factor
deleted file mode 100644
index 9568fa8805..0000000000
--- a/unmaintained/enchilada/enchilada.factor
+++ /dev/null
@@ -1,12 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: enchilada
-USING: generic kernel enchilada.engine enchilada.parser enchilada.printer prettyprint ; 
-
-
-: (e-eval) ( e-expression -- )
-    dup e-reducible? [ dup e-print . e-reduce (e-eval) ] [ e-print . ] if ;
-
-: e-eval ( string -- )
-    e-parse (e-eval) ;
diff --git a/unmaintained/enchilada/engine/engine.factor b/unmaintained/enchilada/engine/engine.factor
deleted file mode 100644
index 8c44d16b1b..0000000000
--- a/unmaintained/enchilada/engine/engine.factor
+++ /dev/null
@@ -1,322 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: enchilada.engine
-USING: generic kernel math sequences isequences.interface isequences.base isequences.ops ;
-
-! Provides Enchilada's rewriting expression engine.
-!
-
-GENERIC: !! ( list -- list )
-GENERIC: \\ ( list -- list )
-
-GENERIC: e-reducible? ( e -- ? )
-GENERIC: e-dyadic? ( o -- ? )
-GENERIC: e-operator? ( o -- ? )
-GENERIC: e-list? ( o -- ? )
-GENERIC: e-symbol? ( o -- ? )
-
-GENERIC: e-m-operate ( v op -- e )
-GENERIC: e-d-operate ( v1 v2 op -- e )
-
-GENERIC: e-reduce ( e -- e )
-GENERIC: free-symbols ( s -- symbols )
-
-TUPLE: ireplace from to seq ;
-
-: unpack-ireplace ( ireplace -- from to seq )
-    dup ireplace-from swap dup ireplace-to swap ireplace-seq ; inline
-
-GENERIC: e-replace ( from to sequence -- s )
-
-: (ireplace1) ( from to seq -- ireplace )
-    dup is-atom?
-    [ pick over i-cmp 0 = [ drop nip ] [ nip nip ] if ]
-    [ <ireplace> ] if ;
-    
-: <i-replace> ( from to seq -- ireplace )
-   dup i-length dup 0 =
-   [ 3drop drop 0 ]
-   [ 1 = [ (ireplace1) ] [ <ireplace> ] if ]
-   if ;
-       
-: ireplace-i-at ( s i -- v )
-   swap dup ireplace-seq rot i-at dup >r swap dup ireplace-from rot i-cmp 0 =
-   [ r> drop ireplace-to ]
-   [ dup ireplace-from swap ireplace-to r> e-replace ]
-   if ;
-    
-M: object e-replace <i-replace> ;
-M: integer e-replace -rot 2drop ;
-
-M: ireplace i-length ireplace-seq i-length ;
-M: ireplace i-at ireplace-i-at ;
-M: ireplace ileft unpack-ireplace ileft e-replace ;
-M: ireplace iright unpack-ireplace iright e-replace ;
-M: ireplace ihead (ihead) ;
-M: ireplace itail (itail) ;
-M: ireplace $$ unpack-ireplace [ $$ ] 2apply rot $$ quick-hash quick-hash ;
-
-TUPLE: esymbol seq ;
-
-GENERIC: esymbol/i-cmp ( esymbol s -- i )
-
-M: object esymbol/i-cmp 2drop -1 ;
-M: esymbol esymbol/i-cmp swap [ esymbol-seq ] 2apply i-cmp ;
-M: esymbol object/i-cmp 2drop 1 ;
-M: esymbol i-cmp swap esymbol/i-cmp ; 
-
-DEFER: (sunion)
-
-: (sunion6) ( s1 s2 -- s )
-    2dup [ 0 i-at ] 2apply i-cmp dup zero?
-    [ 2drop ] [ 0 > [ swap ] when ++ ] if ; inline
-    
-: (sunion5) ( s1 s2 -- s )
-    over ileft i-length pick swap i-at icut rot left-right
-    swap roll (sunion) -rot swap (sunion) ++ ; inline
-
-: (sunion4) ( s1 s2 -- s )
-   2dup ifirst swap ilast i-cmp dup zero?
-   [ drop 1 itail ++ ] [ 0 > [ ++ ] [ (sunion5) ] if ] if ; inline
-
-: (sunion3) ( s1 s2 ls1 ls2 -- s )
-    1 = 
-    [ 1 = [ (sunion6) ] [ (sunion4) ] if ]
-    [ 1 = [ swap ] when (sunion4) ] if ; inline
-
-: (sunion2) ( s1 s2 -- s )
-    2dup [ i-length ] 2apply 2dup zero?
-    [ 3drop drop ] [ zero? [ 2drop nip ] [ (sunion3) ] if ] if ; inline
-    
-: (sunion) ( s1 s2 -- s )
-    2dup eq? [ drop ] [ (sunion2) ] if ; inline
-
-: s-union ( s1 s2 -- s )
-    (sunion) ; inline
-
-: (free-symbols) ( s -- symbols )
-    dup is-atom?
-    [ dup e-symbol? [ drop 0 ] unless ]
-    [ 0 i-at free-symbols ] if ;
-
-M: object free-symbols
-    dup i-length dup 0 =
-    [ 2drop 0 ]
-    [ 1 = [ (free-symbols) ] [ left-right [ free-symbols ] 2apply s-union ] if ] if ;
-
-M: integer free-symbols drop 0 ;
-
-M: object !!
-    dup i-length dup 0 =
-    [ 2drop 0 ]
-    [ 1 = [ 0 i-at dup left-side swap right-side [ e-reduce ] 2apply <i-dual-sided> <i> ] [ left-right [ !! ] 2apply ++ ] if ] if ;
-
-M: integer !! ;
-
-
-: (\\) ( expr -- list )
-   dup i-length dup 0 =
-   [ 2drop 0 ]
-   [ 1 = [ <i> ] [ left-right [ (\\) ] 2apply ++ ] if ] if ;
-
-M: object \\
-    dup i-length dup 0 =
-    [ 2drop 0 ]
-    [ 1 = [ 0 i-at left-side (\\) ] [ left-right [ \\ ] 2apply ++ ] if ] if ; 
-M: integer \\ ;
-
-TUPLE: emacro symbols expr eager? ;
-
-: symbol-list? ( symbols -- ? )
-    i-sort dup free-symbols i-cmp 0 = ; inline
-
-: full-reduce ( expr -- expr )
-	dup e-reducible? [ e-reduce full-reduce ] when ;
-
-: <e-macro> ( symbols expr eager? -- e-macro )
-    dup [ swap full-reduce swap ] when
-    >r swap dup symbol-list? [ swap r> <emacro> ] [ "illegal symbol list" throw ] if ;
-
-M: emacro free-symbols dup emacro-expr free-symbols swap emacro-symbols i-diff ;
-
-M: emacro e-replace
-    pick over [ free-symbols ] 2apply i-intersect i-length 0 =
-    [ -rot 2drop ]
-    [ dup >r emacro-expr e-replace r> dup emacro-symbols swap emacro-eager? rot swap <e-macro> ] if ;
-
-: eflatten ( s -- s )
-    dup i-length dup zero?
-    [ 2drop 0 ]
-    [ 1 = [ 0 i-at left-side ] [ left-right [ eflatten ] 2apply ++ ] if ] if ; inline
-    
-TUPLE: c-op v d-op ;
-
-M: object e-operator? drop f ;
-M: object e-list? dup e-operator? not swap e-symbol? not and ;
-M: object e-symbol? drop f ;
-M: object e-dyadic? drop f ;
-
-M: esymbol e-symbol? drop t ;
-
-M: c-op e-m-operate
-    dup c-op-v swap c-op-d-op e-d-operate ; 
-    
-TUPLE: .- ;
-M: .- e-m-operate drop -- <i> ;
-TUPLE: .` ;
-M: .` e-m-operate drop `` <i> ;
-TUPLE: .$ ;
-M: .$ e-m-operate drop $$ <i> ;
-TUPLE: .~ ;
-M: .~ e-m-operate drop ~~ <i> ;
-TUPLE: .: ;
-M: .: e-m-operate drop :: <i> ;
-TUPLE: .# ;
-M: .# e-m-operate drop ## <i> ;
-TUPLE: .^ ;
-M: .^ e-m-operate drop eflatten ;
-TUPLE: .! ;
-M: .! e-m-operate drop !! <i> ;
-TUPLE: .\ ;
-M: .\ e-m-operate drop \\ <i> ;
-    
-TUPLE: .+ ;
-M: .+ e-d-operate drop ++ <i> ;
-TUPLE: .* ;
-M: .* e-d-operate drop ** [ <i> ] 2apply ++ ;
-TUPLE: ./ ;
-M: ./ e-d-operate drop // [ <i> ] 2apply ++ ;
-TUPLE: .& ;
-M: .& e-d-operate drop && <i> ;
-TUPLE: .| ;
-M: .| e-d-operate drop || <i> ;
-TUPLE: .< ;
-M: .< e-d-operate drop << [ <i> ] 2apply ++ ;
-TUPLE: .> ;
-M: .> e-d-operate drop >> <i> ;
-TUPLE: .@ ;
-M: .@ e-d-operate >r swap 0 i-cmp 0 = [ dup eflatten swap <i> ++ r> ++ ] [ r> 2drop 0 ] if ;
-TUPLE: .? ;
-M: .? e-d-operate drop (i-eq?) [ 1 ] [ 0 ] if <i> ;
-TUPLE: .% ;
-M: .% e-d-operate drop %% [ <i> ] 2apply ++ ;
-
-UNION: monadic-class c-op .- .` .$ .~ .: .# .^ .! .\ emacro ;
-UNION: dyadic-class .+ .* ./ .& .| .< .> .@ .? .% ;
-UNION: operator-class monadic-class dyadic-class ;
-
-M: operator-class e-operator? drop t ;
-M: monadic-class e-dyadic? drop f ;
-M: dyadic-class e-dyadic? drop t ;
-
-DEFER: +e+ 
-
-: (e-reducible?) ( e -- ? )
-    left-right 2dup [ e-reducible? ] either?
-    [ 2drop t ] [ ifirst e-operator? swap ilast e-list? and ] if ; inline
-        
-M: object e-reducible?
-    dup i-length 1 <= [ drop f ] [ (e-reducible?) ] if ;
-
-: (e-reduce2) ( e1 e2 -- e )
-    2dup ifirst swap ilast swap e-m-operate
-    -rot 1 itail swap dup i-length 1- ihead rot ++ swap ++ ; inline
-    
-: (e-reduce) ( e -- e )
-    left-right swap dup e-reducible? [ (e-reduce) swap ++ ]
-    [ swap dup e-reducible? [ (e-reduce) ++ ] [ (e-reduce2) ] if ] if ; inline
-
-M: object e-reduce
-    dup e-reducible? [ (e-reduce) ] when ;
-
-: (+e+2) ( e1 e2 -- e )
-    2dup ifirst swap ilast swap <c-op>
-    -rot 1 itail swap dup i-length 1- ihead rot ++ swap ++ ; inline
-
-: (+e+1) ( e1 e2 -- e )
-    2dup ifirst e-dyadic? swap ilast e-list? and
-    [ (+e+2) ] [ ++g ] if ; inline
-
-TUPLE: e-exp expr reducible ;
-
-M: e-exp e-reducible? e-exp-reducible ;
-
-: <expr> ( s -- e-exp )
-    dup e-exp? [ dup e-reducible? <e-exp> ] unless ; inline
-
-: +e+ ( e1 e2 -- e )
-    2dup [ i-length 1 >= ] both?
-    [ (+e+1) ] [ ++g ] if <expr> ; inline
-
-: e-ipair ( e1 e2 -- e )
-    <isequence> <expr> ; inline
-
-M: c-op e-replace dup >r c-op-v e-replace r> c-op-d-op <c-op> ;
-
-
-GENERIC: e-exp/++ ( s e -- e )
-GENERIC: e-exp/ipair ( s e -- e )
-
-M: e-exp ++ swap e-exp/++ ;
-M: e-exp ipair swap e-exp/ipair ;
-
-M: object e-exp/++ swap +e+ ;
-M: object e-exp/ipair swap e-ipair ;
-
-M: e-exp e-exp/++ swap +e+ ;
-M: e-exp e-exp/ipair swap e-ipair ;
-M: e-exp object/++ swap +e+ ;
-M: e-exp object/ipair swap e-ipair ;
-
-M: operator-class ++ +e+ ;
-        
-M: e-exp i-length e-exp-expr i-length ;
-M: e-exp i-at swap e-exp-expr swap i-at ;
-M: e-exp ileft e-exp-expr ileft ;
-M: e-exp iright e-exp-expr iright ;
-M: e-exp ihead swap e-exp-expr swap ihead ;
-M: e-exp itail swap e-exp-expr swap itail ;
-M: e-exp $$ e-exp-expr $$ ;
-
-M: e-exp e-replace 
-    dup i-length 1 =
-    [ e-exp-expr e-replace ]
-    [ 3dup iright e-replace >r ileft e-replace r> ++ ] if ;
-
-TUPLE: ereplacement from to ;
-
-: (ereplace) ( symbols from-symbol --  to-symbol )
-   esymbol-seq dup ++ <esymbol> dup pick i-intersect i-length zero?
-   [ nip ] [ (ereplace) ] if ; inline
-
-: (replacements3) ( symbols from-symbol --  newsymbols replacement )
-    2dup (ereplace) rot over i-union -rot <ereplacement> ; inline
-
-: (replacements2) ( symbols intersect -- replacements )
-   dup i-length zero?
-   [ 2drop 0 ]
-   [ dup >r ifirst (replacements3) swap r> 1 itail (replacements2) ++ ] if ;
-
-: replace-s ( s replacements -- s )
-    dup i-length dup zero?
-    [ 2drop ]
-    [ 1 = [ 0 i-at dup ereplacement-from swap ereplacement-to rot e-replace ] [ left-right >r replace-s r> replace-s ] if ] if ; 
-
-: (replacements) ( value macro -- replacements )
-    dup emacro-expr free-symbols swap emacro-symbols -1 ++
-    i-intersect tuck swap free-symbols i-intersect (replacements2) ; inline 
-
-: (replace-macro) ( replacements macro -- macro )
-    2dup dup >r emacro-symbols swap replace-s swap emacro-expr rot replace-s r> emacro-eager? <e-macro> ;
-    
-: (eval-macro) ( value macro -- macro )
-    dup >r emacro-symbols dup -1 ++ swap ilast rot <i> r> dup >r emacro-expr e-replace r> emacro-eager? <e-macro> ;
-
-: eval-macro ( value macro -- s )
-    2dup (replacements) swap (replace-macro) (eval-macro) ;
-
-: emacro-e-m-operate ( value macro -- s )
-	eval-macro dup emacro-symbols i-length zero? [ emacro-expr ] when ;
-
-M: emacro e-m-operate emacro-e-m-operate ;
diff --git a/unmaintained/enchilada/parser/parser.factor b/unmaintained/enchilada/parser/parser.factor
deleted file mode 100644
index 4001655261..0000000000
--- a/unmaintained/enchilada/parser/parser.factor
+++ /dev/null
@@ -1,139 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: enchilada.parser
-USING: strings sequences kernel promises lazy-lists parser-combinators parser-combinators.simple isequences.interface isequences.base enchilada.engine ;
-
-USE: lazy-lists
-USE: parser-combinators
-
-DEFER: e-expression
-
-LAZY: e/- ( -- parser )
-    "-" token [ drop <.-> ] <@ ;
-
-LAZY: e/# ( -- parser )
-    "#" token [ drop <.#> ] <@ ;
-
-LAZY: e/^ ( -- parser )
-    "^" token [ drop <.^> ] <@ ;
-
-LAZY: e/` ( -- parser )
-    "`" token [ drop <.`> ] <@ ;
-
-LAZY: e/: ( -- parser )
-    ":" token [ drop <.:> ] <@ ;
-
-LAZY: e/~ ( -- parser )
-    "~" token [ drop <.~> ] <@ ;
-
-LAZY: e/$ ( -- parser )
-    "$" token [ drop <.$> ] <@ ;
-
-LAZY: e/! ( -- parser )
-    "!" token [ drop <.!> ] <@ ;
-
-LAZY: e/\ ( -- parser )
-    "\\" token [ drop <.\> ] <@ ;
-
-LAZY: e/+ ( -- parser )
-    "+" token [ drop <.+> ] <@ ;
-
-LAZY: e/| ( -- parser )
-    "|" token [ drop <.|> ] <@ ;
-
-LAZY: e/& ( -- parser )
-    "&" token [ drop <.&> ] <@ ;
-
-LAZY: e/* ( -- parser )
-    "*" token [ drop <.*> ] <@ ;
-
-LAZY: e// ( -- parser )
-    "/" token [ drop <./> ] <@ ;
-
-LAZY: e/< ( -- parser )
-    "<" token [ drop <.<> ] <@ ;
-
-LAZY: e/> ( -- parser )
-    ">" token [ drop <.>> ] <@ ;
-
-LAZY: e/@ ( -- parser )
-    "@" token [ drop <.@> ] <@ ;
-
-LAZY: e/? ( -- parser )
-    "?" token [ drop <.?> ] <@ ;
-
-LAZY: e/% ( -- parser )
-    "%" token [ drop <.%> ] <@ ;
-
-LAZY: e-monadic ( -- parser )
-    e/- e/# <|> e/^ <|> e/` <|> e/: <|> e/~ <|> e/$ <|> e/! <|> e/\ <|> ;
-
-LAZY: e-dyadic ( -- parser )
-    e/+ e/* <|> e/& <|> e/| <|> e// <|> e/< <|> e/> <|> e/@ <|> e/? <|> e/% <|> ;
-
-LAZY: e-number ( -- parser )
-    'integer' ;
-
-LAZY: e-letter ( -- parser )
-    [ letter? ] satisfy [ 1 swap <string> ] <@ ;
-
-LAZY: e-digit ( -- parser )
-    [ digit? ] satisfy [ 1 swap <string> ] <@ ;
-
-LAZY: e-alphanumeric-char ( -- parser )
-    e-letter e-digit <|> ;
-
-LAZY: e-alphanumeric-symbol ( -- parser )
-    e-letter e-alphanumeric-char <!*> <&> [ dup first swap second "" [ append ] reduce append ] <@ ;
-
-LAZY: e-symbol ( -- parser )
-    e-alphanumeric-symbol 'string' <|> sp [ <esymbol> ] <@ ;
-
-LAZY: e-symbol-list ( -- parser )
-    e-symbol <!+> [ { } [ ++ ] reduce ] <@ ;
-
-LAZY: e-macro-expression ( -- parser )
-    "=" token "=" token <?> <&> sp e-expression <&> [ dup 1 tail swap first second [ t ] [ f ] if add ] <@ ;
-
-LAZY: e-macro ( -- parser )
-    "{" token sp e-symbol-list &> e-macro-expression <?> <&> "}" token sp <& 
-    [ dup first swap second dup [ first ] [ drop { 0 f } ] if dup first swap second <e-macro> ] <@ ;
-
-LAZY: e-right-expression ( -- parser )
-    "=" token e-expression &> ;
-
-: create-e-item ( pair -- e-item )
-    dup first swap second dup [ first ] [ drop 0 ] if <i-dual-sided> <i> ;
- 
-LAZY: e-item ( -- parser )
-e-expression e-right-expression <?> <&> [ create-e-item ] <@ ;
-
-LAZY: e-rest ( -- parser )
-";" token sp e-item &> <!*> [ { } [ ++ ] reduce ] <@ ;
-
-LAZY: e-contents ( -- parser )
-e-item e-rest <&> [ dup first swap second ++ ] <@ ;
-
-LAZY: e-non-empty ( -- parser )
-"[" token e-contents &> "]" token sp <& ;
-
-LAZY: e-empty ( -- parser )
-    "[" token "]" token <&> [ drop 0 ] <@ ;
-
-LAZY: e-sequence ( -- parser )
-    e-empty e-non-empty <|> e-number <|> ;
-
-LAZY: e-operand ( -- parser )
-    "_" token <?> e-sequence <&> [ dup second swap first [ -- ] when <i> ] <@ ;
-
-LAZY: e-operator ( -- parser )
-    e-monadic e-dyadic <|> e-macro <|>  ;
-
-LAZY: e-element ( -- parser )
-    e-operator e-operand <|> e-symbol <|> sp ;
-
-LAZY: e-expression ( -- parser )
-    e-element <!*> [ { } [ ++ ] reduce ] <@ ;
-
-: e-parse  ( string -- result ) e-expression parse car parse-result-parsed ;
diff --git a/unmaintained/enchilada/printer/printer.factor b/unmaintained/enchilada/printer/printer.factor
deleted file mode 100644
index 569c71b1eb..0000000000
--- a/unmaintained/enchilada/printer/printer.factor
+++ /dev/null
@@ -1,71 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: enchilada.printer
-USING: prettyprint strings generic kernel math math.parser sequences isequences.interface isequences.base enchilada.engine ;
-
-: s-append ( s1 s2 s3 -- s )
-    swap append append ;
-
-DEFER: e-print
-DEFER: l-print
-
-GENERIC: (e-print) ( op -- string ) 
-
-M: .- (e-print) drop "-" ;
-M: .# (e-print) drop "#" ;
-M: .$ (e-print) drop "$" ;
-M: .^ (e-print) drop "^" ;
-M: .` (e-print) drop "`" ;
-M: .~ (e-print) drop "~" ;
-M: .: (e-print) drop ":" ;
-M: .! (e-print) drop "!" ;
-M: .\ (e-print) drop "\\" ;
-
-M: .+ (e-print) drop "+" ;
-M: .* (e-print) drop "*" ;
-M: ./ (e-print) drop "/" ;
-M: .< (e-print) drop "<" ;
-M: .> (e-print) drop ">" ;
-M: .| (e-print) drop "|" ;
-M: .& (e-print) drop "&" ;
-M: .@ (e-print) drop "@" ;
-M: .? (e-print) drop "?" ;
-M: .% (e-print) drop "%" ;
-
-: (eprint-macro-expr) ( emacro -- string )
-   dup emacro-expr dup i-length 0 =
-   [ 2drop "" ]
-   [ e-print swap emacro-eager? [ "==" ] [ "=" ] if swap append ] if ;
-
-: (l-print1) ( e-list -- string )
-    0 i-at dup left-side swap right-side dup 0 =
-    [ drop dup i-length 0 = [ drop " " ] [ e-print ] if ] [ e-print swap e-print swap "=" s-append ] if ;
-    
-: (l-print0) ( e-list -- string )
-    left-right [ l-print ] 2apply ";" s-append ;
-
-: l-print ( e-list -- string )
-    dup i-length dup 0 =
-    [ 2drop "0" ] [ 1 = [ (l-print1) ] [ (l-print0) ] if ] if ;
-
-: prefix-neg ( s -- s prefix )
-   dup i-length 0 < [ -- "_" ] [ "" ] if ;
-
-: (e-print3) ( symbol -- string )
-    esymbol-seq to-sequence >string ;
-
-: (e-print2) ( e-list -- string )
-    dup integer? [ prefix-neg swap number>string append ] [ prefix-neg "[" append swap l-print "]" append append ] if ;
-    
-: (e-print1) ( e-expression -- string )
-    0 i-at dup e-operator? [ (e-print) ] [ dup e-symbol? [ (e-print3) ] [ (e-print2) ] if ] if ;
-        
-: e-print ( e-expression -- string )
-    dup i-length dup 0 =
-    [ 2drop "" ]
-    [ 1 = [ (e-print1) ] [ left-right [ e-print ] 2apply " " s-append ] if ] if ;
-
-M: c-op (e-print) dup c-op-d-op swap c-op-v (e-print2) swap (e-print) " " s-append ;
-M: emacro (e-print) "{" swap dup emacro-symbols e-print swap (eprint-macro-expr) "}" append append append ;
-
diff --git a/unmaintained/enchilada/summary.txt b/unmaintained/enchilada/summary.txt
deleted file mode 100644
index 17d5a87279..0000000000
--- a/unmaintained/enchilada/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Enchilada, a concatenative programming language
diff --git a/unmaintained/enchilada/tags.txt b/unmaintained/enchilada/tags.txt
deleted file mode 100644
index eab42feac7..0000000000
--- a/unmaintained/enchilada/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-languages
diff --git a/unmaintained/furnace-onigiri/load.factor b/unmaintained/furnace-onigiri/load.factor
deleted file mode 100644
index 727eaf7a92..0000000000
--- a/unmaintained/furnace-onigiri/load.factor
+++ /dev/null
@@ -1,12 +0,0 @@
-! Copyright (C) 2006 Matthew Willis. All Rights Reserved.
-! See http://factorcode.org/license.txt for BSD license.
-!
-
-REQUIRES: libs/calendar libs/crypto libs/basic-authentication 
-libs/furnace libs/serialize ;
-
-PROVIDE: apps/furnace-onigiri
-{ +files+ {
-	"onigiri.factor"
-	"onigiri.facts"
-} } ;
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/onigiri.factor b/unmaintained/furnace-onigiri/onigiri.factor
deleted file mode 100644
index a015659c0f..0000000000
--- a/unmaintained/furnace-onigiri/onigiri.factor
+++ /dev/null
@@ -1,166 +0,0 @@
-! Copyright (C) 2006 Matthew Willis. All Rights Reserved.
-! See http://factorcode.org/license.txt for BSD license.
-!
-
-USING: httpd threads kernel namespaces furnace sequences 
-html strings math assocs crypto io file-responder calendar 
-prettyprint parser errors sha2 basic-authentication arrays
-serialize ;
-
-IN: furnace:onigiri
-
-TUPLE: entry title stub body created ;
-
-TUPLE: user name password ;
-
-TUPLE: meta key value ;
-
-: title>stub ( title -- stub )
-    ! creates a url friendly name based on the title
-    " " split [ [ alpha? ] subset ] map "" swap remove "-" join ;
-
-C: entry ( title body stub -- entry )
-    tuck set-entry-stub 
-    tuck set-entry-body 
-    dup entry-stub [ over title>stub over set-entry-stub ] unless
-    now over set-entry-created tuck set-entry-title ;
-
-C: user ( name password -- user )
-    swap string>sha-256-string over set-user-password
-    tuck set-user-name ;
-
-: base-url ( -- url )
-    "http://" "Host" "header" get at append ;
-
-: action>url ( action -- url )
-    "responder-url" get swap append ;
-
-: stub>url ( stub -- url )
-    "entry-show?stub=" swap append action>url ;
-
-: stub>entry ( stub -- entry )
-    entry get-global [ entry-stub = ] subset-with 
-    dup empty? [ drop f ] [ first ] if ;
-
-: atom ( -- )
-    "text/xml" serving-content
-    [ f "atom" render-template ] with-html-stream ;
-
-: sitemap ( -- )
-    "text/xml" serving-content
-    [ f "sitemap" render-template ] with-html-stream ;
-
-: css-path ( -- path )
-    ! "text/css" serving-content
-    "css" meta crud-lookup* meta-value
-    [ "onigirihouse.css" ] unless* ;
-
-DEFER: key>meta*
-: entry-list ( -- )
-	"title" key>meta* meta-value
-	serving-html [
-	    <furnace-model> "header" render-template
-    	entry get-global
-		[ [ entry-created ] 2apply swap compare-timestamps ] sort
-		[ "entry-show" render-template ] each
-    	f "footer" render-template
-	] with-html-stream ;
-
-DEFER: key>meta
-: entry-show ( stub -- )
-    stub>entry
-    [ 
-        "title" key>meta* meta-value
-        " - " pick entry-title 3append
-        serving-html [
-            <furnace-model> "header" render-template
-            "entry-show" render-template
-            f "footer" render-template
-        ] with-html-stream
-    ] [ 
-        "title" key>meta* meta-value " - Entry not found" append
-        serving-html [ 
-            [ 
-                <p> "The entry you are searching for could not be found" write </p>
-                <p> [ entry-list ] "Back to " "title" key>meta
-                [ meta-value ] [ "the main page" ] if* append render-link
-                </p>
-            ] html-document
-        ] with-html-stream
-    ] if* ;
-
-: entry-edit ( stub wiky -- )
-    swap stub>entry dup [ entry-title ] [ f ] if*
-    "title" key>meta* meta-value " - editing " rot 3append
-    serving-html [
-        <furnace-model> "header" render-template
-        swap "entry-edit" "entry-edit-plain" ? render-template
-        f "footer" render-template
-    ] with-html-stream ;
-
-: entry-update ( title body stub -- )
-    "onigiri-realm" [
-        dup stub>entry [
-            nip tuck set-entry-body tuck set-entry-title
-        ] [
-            <entry> dup entry get-global swap add entry set-global 
-    	] if* entry-stub entry-show
-    ] with-basic-authentication ;
-
-: entry-delete ( stub -- )
-    "onigiri-realm" [ 
-        stub>entry entry get-global remove entry set-global entry-list
-    ] with-basic-authentication ;
-
-DEFER: name>user
-: onigiri-realm ( name password -- bool )
-    swap name>user [ user-password = ] [ drop f ] if*
-    user get-global empty? or ;
-    
-: register-actions ( -- )
-    \ entry-list { } define-action
-    \ entry-show { { "stub" } } define-action
-    \ entry-edit { { "stub" } { "wiky" f v-default } } define-action
-    \ entry-update { { "title" } { "body" } { "stub" } } define-action
-    \ entry-delete { { "stub" } } define-action
-    \ atom { } define-action
-    \ sitemap { } define-action
-    "onigiri" "entry-list" "apps/furnace-onigiri/templates/" web-app 
-    "onigiri-resources" [ 
-        [
-            "apps/furnace-onigiri/resources/" resource-path "doc-root" set
-            file-responder
-        ] with-scope
-    ] add-simple-responder 
-    [ onigiri-realm ] "onigiri-realm" add-realm
-    ! and finally, use scaffolding for metadata and user data 
-    [ 
-        "furnace:onigiri" set-in
-        meta "key" "onigiri-realm" scaffold
-        user "name" "onigiri-realm" scaffold 
-    ] with-scope ;
-
-: onigiri ( -- )
-    register-actions
-    "default-responder" key>meta* meta-value
-    [ "onigiri" set-default-responder ] when
-    "port" key>meta* meta-value string>number [ 8888 ] unless*
-    [ httpd ] in-thread drop ;
-
-: onigiri-dump ( path -- )
-    [
-        [
-            entry get-global serialize
-            meta get-global serialize
-            user get-global serialize
-        ] with-serialized
-    ] with-file-writer ;
-
-: onigiri-boot ( path -- )
-    <file-reader> [
-        [
-            deserialize entry set-global
-            deserialize meta set-global
-            deserialize user set-global
-        ] with-serialized
-    ] with-stream ;
diff --git a/unmaintained/furnace-onigiri/onigiri.facts b/unmaintained/furnace-onigiri/onigiri.facts
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/unmaintained/furnace-onigiri/onigiri.todo b/unmaintained/furnace-onigiri/onigiri.todo
deleted file mode 100644
index 2785c009f8..0000000000
--- a/unmaintained/furnace-onigiri/onigiri.todo
+++ /dev/null
@@ -1,4 +0,0 @@
-Recent posts sidebar
-Links sidebar
-Widgets (Onigirihouse feels ...)
-Tagging*
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/resources/onigirihouse.css b/unmaintained/furnace-onigiri/resources/onigirihouse.css
deleted file mode 100644
index 89f26645f8..0000000000
--- a/unmaintained/furnace-onigiri/resources/onigirihouse.css
+++ /dev/null
@@ -1,7 +0,0 @@
-body { font: 14px "Trebuchet MS", Arial, Helvetica, sans-serif; }
-h1, h2, h3, h4, h5, h6 { font-family: lucida grande ; }
-#header { text-align: center ; }
-#container { max-width: 720px ; margin: 0 auto; padding: 20px; }
-.entry { margin-bottom: 75px ; }
-a { color: #5C832F; text-decoration: none; }
-a:hover { text-decoration: underline; }
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/resources/wiky/wiky.css b/unmaintained/furnace-onigiri/resources/wiky/wiky.css
deleted file mode 100644
index 062f34efd9..0000000000
--- a/unmaintained/furnace-onigiri/resources/wiky/wiky.css
+++ /dev/null
@@ -1,15 +0,0 @@
-/* == wiky == */
-*.wiki blockquote { background:#ddd; border:solid 1px #999; margin-left:1em; padding:0.5em;}
-*.wiki table {
-  border-collapse: collapse;
-  empty-cells: show;
-}
-
-*.wiki table td {
-  border: solid 1px black;
-  padding: 0.25em 0.5em 0.25em 0.5em;
-  text-align: center;
-}
-
-/*pre { font-size:100%; background: #eed; border:1px dotted #999; padding:0 0.5em; overflow:auto; }*/
-pre { font-family:courier new, monospace; overflow:auto; }
diff --git a/unmaintained/furnace-onigiri/resources/wiky/wiky.js b/unmaintained/furnace-onigiri/resources/wiky/wiky.js
deleted file mode 100644
index 71e46ff86a..0000000000
--- a/unmaintained/furnace-onigiri/resources/wiky/wiky.js
+++ /dev/null
@@ -1,373 +0,0 @@
-/*	This work is licensed under Creative Commons GNU LGPL License.
-
-	License: http://creativecommons.org/licenses/LGPL/2.1/
-
-	Author:  Stefan Goessner/2005-06
-	Web:     http://goessner.net/ 
-*/
-var Wiky = {
-  version: 0.95,
-  blocks: null,
-  rules: {
-     all: [
-       "Wiky.rules.pre",
-       "Wiky.rules.nonwikiblocks",
-       "Wiky.rules.wikiblocks",
-       "Wiky.rules.post",
-     ],
-     pre: [
-       { rex:/(\r?\n)/g, tmplt:"\xB6" },  // replace line breaks with '¶' ..
-     ],
-     post: [
-       { rex:/(^\xB6)|(\xB6$)/g, tmplt:"" },  // .. remove linebreaks at BOS and EOS ..
-       { rex:/@([0-9]+)@/g, tmplt:function($0,$1){return Wiky.restore($1);} }, // resolve blocks ..
-       { rex:/\xB6/g, tmplt:"\n" } // replace '¶' with line breaks ..
-     ],
-     nonwikiblocks: [
-       { rex:/\\([%])/g, tmplt:function($0,$1){return Wiky.store($1);} },
-       { rex:/\[(?:\{([^}]*)\})?(?:\(([^)]*)\))?%(.*?)%\]/g, tmplt:function($0,$1,$2,$3){return ":p]"+Wiky.store("<pre"+($2?(" lang=\"x-"+Wiky.attr($2)+"\""):"")+Wiky.style($1)+">" + Wiky.apply($3, $2?Wiky.rules.lang[Wiky.attr($2)]:Wiky.rules.code) + "</pre>")+"[p:";} } //programm code block
-     ],
-     wikiblocks: [
-       "Wiky.rules.nonwikiinlines",
-       "Wiky.rules.escapes",
-       { rex:/(?:^|\xB6)(={1,6})(.*?)[=]*(?=\xB6|$)/g, tmplt:function($0,$1,$2){ var h=$1.length; return ":p]\xB6<h"+h+">"+$2+"</h"+h+">\xB6[p:";} }, // <h1> .. <h6>
-       { rex:/(?:^|\xB6)[-]{4}(?:\xB6|$)/g, tmplt:"\xB6<hr/>\xB6" },  // horizontal ruler ..
-       { rex:/\\\\([ \xB6])/g, tmplt:"<br/>$1" },  // forced line break ..
-       { rex:/(^|\xB6)([*01aAiIg]*[\.*])[ ]/g, tmplt:function($0,$1,$2){var state=$2.replace(/([*])/g,"u").replace(/([\.])/,"");return ":"+state+"]"+$1+"["+state+":";}},
-       { rex:/(?:^|\xB6);[ ](.*?):[ ]/g, tmplt:"\xB6:l][l:$1:d][d:"},  // ; term : definition
-       { rex:/\[(?:\{([^}]*)\})?(?:\(([^)]*)\))?\"/g, tmplt:function($0,$1,$2){return ":p]<blockquote"+Wiky.attr($2,"cite",0)+Wiky.attr($2,"title",1)+Wiky.style($1)+">[p:"; } }, // block quotation start
-       { rex:/\"\]/g, tmplt:":p]</blockquote>[p:" }, // block quotation end
-       { rex:/\[(\{[^}]*\})?\|/g, tmplt:":t]$1[r:" },  // .. start table ..
-       { rex:/\|\]/g, tmplt:":r][t:" },  // .. end table ..
-       { rex:/\|\xB6[ ]?\|/g, tmplt:":r]\xB6[r:" },  // .. end/start table row ..
-       { rex:/\|/g, tmplt:":c][c:" },  // .. end/start table cell ..
-       { rex:/^(.*)$/g, tmplt:"[p:$1:p]" },  // start paragraph '[p:' at BOS .. end paragraph ':p]' at EOS ..
-       { rex:/(([\xB6])([ \t\f\v\xB6]*?)){2,}/g, tmplt:":p]$1[p:" },  // .. separate paragraphs at blank lines ..
-       { rex:/\[([01AIacdgilprtu]+)[:](.*?)[:]([01AIacdgilprtu]+)\]/g, tmplt:function($0,$1,$2,$3){return Wiky.sectionRule($1==undefined?"":$1,"",Wiky.apply($2,Wiky.rules.wikiinlines),!$3?"":$3);} },
-       { rex:/\[[01AIacdgilprtu]+[:]|[:][01AIacdgilprtu]+\]/g, tmplt:"" },  // .. remove singular section delimiters (they frequently exist with incomplete documents while typing) ..
-       { rex:/<td>(?:([0-9]*)[>])?([ ]?)(.*?)([ ]?)<\/td>/g, tmplt:function($0,$1,$2,$3,$4){return "<td"+($1?" colspan=\""+$1+"\"":"")+($2==" "?(" style=\"text-align:"+($2==$4?"center":"right")+";\""):($4==" "?" style=\"text-align:left;\"":""))+">"+$2+$3+$4+"</td>";} },
-       { rex:/<(p|table)>(?:\xB6)?(?:\{(.*?)\})/g, tmplt:function($0,$1,$2){return "<"+$1+Wiky.style($2)+">";} },
-       { rex:/<p>([ \t\f\v\xB6]*?)<\/p>/g, tmplt:"$1" },  // .. remove empty paragraphs ..
-       "Wiky.rules.shortcuts"
-     ],
-     nonwikiinlines: [
-       { rex:/%(?:\{([^}]*)\})?(?:\(([^)]*)\))?(.*?)%/g, tmplt:function($0,$1,$2,$3){return Wiky.store("<code"+($2?(" lang=\"x-"+Wiky.attr($2)+"\""):"")+Wiky.style($1)+">" + Wiky.apply($3, $2?Wiky.rules.lang[Wiky.attr($2)]:Wiky.rules.code) + "</code>");} }, // inline code
-       { rex:/%(.*?)%/g, tmplt:function($0,$1){return Wiky.store("<code>" + Wiky.apply($2, Wiky.rules.code) + "</code>");} }
-     ],
-     wikiinlines: [
-       { rex:/\*([^*]+)\*/g, tmplt:"<strong>$1</strong>" },  // .. strong ..
-       { rex:/_([^_]+)_/g, tmplt:"<em>$1</em>" },
-       { rex:/\^([^^]+)\^/g, tmplt:"<sup>$1</sup>" },
-       { rex:/~([^~]+)~/g, tmplt:"<sub>$1</sub>" },
-       { rex:/\(-(.+?)-\)/g, tmplt:"<del>$1</del>" },
-       { rex:/\?([^ \t\f\v\xB6]+)\((.+)\)\?/g, tmplt:"<abbr title=\"$2\">$1</abbr>" },  // .. abbreviation ..
-       { rex:/\[(?:\{([^}]*)\})?[Ii]ma?ge?\:([^ ,\]]*)(?:[, ]([^\]]*))?\]/g, tmplt:function($0,$1,$2,$3){return Wiky.store("<img"+Wiky.style($1)+" src=\""+$2+"\" alt=\""+($3?$3:$2)+"\" title=\""+($3?$3:$2)+"\"/>");} },  // wikimedia image style ..
-       { rex:/\[([^ ,]+)[, ]([^\]]*)\]/g, tmplt:function($0,$1,$2){return Wiky.store("<a href=\""+$1+"\">"+$2+"</a>");}},  // wiki block style uri's ..
-       { rex:/(((http(s?))\:\/\/)?[A-Za-z0-9\._\/~\-:]+\.(?:png|jpg|jpeg|gif|bmp))/g, tmplt:function($0,$1,$2){return Wiky.store("<img src=\""+$1+"\" alt=\""+$1+"\"/>");} },  // simple images .. 
-       { rex:/((mailto\:|javascript\:|(news|file|(ht|f)tp(s?))\:\/\/)[A-Za-z0-9\.:_\/~%\-+&#?!=()@\x80-\xB5\xB7\xFF]+)/g, tmplt:"<a href=\"$1\">$1</a>" }  // simple uri's .. 
-     ],
-     escapes: [
-       { rex:/\\([|*_~\^])/g, tmplt:function($0,$1){return Wiky.store($1);} },
-       { rex:/\\&/g, tmplt:"&amp;" },
-       { rex:/\\>/g, tmplt:"&gt;" },
-       { rex:/\\</g, tmplt:"&lt;" }
-     ],
-     shortcuts: [
-       { rex:/---/g, tmplt:"&#8212;" },  // &mdash;
-       { rex:/--/g, tmplt:"&#8211;" },  // &ndash;
-       { rex:/[\.]{3}/g, tmplt:"&#8230;"}, // &hellip;
-       { rex:/<->/g, tmplt:"&#8596;"}, // $harr;
-       { rex:/<-/g, tmplt:"&#8592;"}, // &larr;
-       { rex:/->/g, tmplt:"&#8594;"}, //&rarr;
-     ],
-     code: [
-       { rex:/&/g, tmplt:"&amp;"},
-       { rex:/</g, tmplt:"&lt;"},
-       { rex:/>/g, tmplt:"&gt;"}
-     ],
-     lang: {}
-   },
-
-   inverse: {
-     all: [
-       "Wiky.inverse.pre",
-       "Wiky.inverse.nonwikiblocks",
-       "Wiky.inverse.wikiblocks",
-       "Wiky.inverse.post"
-     ],
-     pre: [
-       { rex:/(\r?\n)/g, tmplt:"\xB6" }  // replace line breaks with '¶' ..
-     ],
-     post: [
-       { rex:/@([0-9]+)@/g, tmplt:function($0,$1){return Wiky.restore($1);} },  // resolve blocks ..
-       { rex:/\xB6/g, tmplt:"\n" }  // replace '¶' with line breaks ..
-     ],
-     nonwikiblocks: [
-       { rex:/<pre([^>]*)>(.*?)<\/pre>/mgi, tmplt:function($0,$1,$2){return Wiky.store("["+Wiky.invStyle($1)+Wiky.invAttr($1,["lang"]).replace(/x\-/,"")+"%"+Wiky.apply($2, Wiky.hasAttr($1,"lang")?Wiky.inverse.lang[Wiky.attrVal($1,"lang").substr(2)]:Wiky.inverse.code)+"%]");} } //code block
-     ],
-     wikiblocks: [
-       "Wiky.inverse.nonwikiinlines",
-       "Wiky.inverse.escapes",
-       "Wiky.inverse.wikiinlines",
-       { rex:/<h1>(.*?)<\/h1>/mgi, tmplt:"=$1=" },
-       { rex:/<h2>(.*?)<\/h2>/mgi, tmplt:"==$1==" },
-       { rex:/<h3>(.*?)<\/h3>/mgi, tmplt:"===$1===" },
-       { rex:/<h4>(.*?)<\/h4>/mgi, tmplt:"====$1====" },
-       { rex:/<h5>(.*?)<\/h5>/mgi, tmplt:"=====$1=====" },
-       { rex:/<h6>(.*?)<\/h6>/mgi, tmplt:"======$1======" },
-       { rex:/<(p|table)[^>]+(style=\"[^\"]*\")[^>]*>/mgi, tmplt:function($0,$1,$2){return "<"+$1+">"+Wiky.invStyle($2);} },
-       { rex:/\xB6{2}<li/mgi, tmplt:"\xB6<li" },  // ie6 only ..
-       { rex:/<li class=\"?([^ >\"]*)\"?[^>]*?>([^<]*)/mgi, tmplt:function($0,$1,$2){return $1.replace(/u/g,"*").replace(/([01aAiIg])$/,"$1.")+" "+$2;}},  // list items ..
-       { rex:/(^|\xB6)<(u|o)l[^>]*?>\xB6/mgi, tmplt:"$1" },  // only outer level list start at BOL ...
-       { rex:/(<\/(?:dl|ol|ul|p)>[ \xB6]*<(?:p)>)/gi, tmplt:"\xB6\xB6" },
-       { rex:/<dt>(.*?)<\/dt>[ \f\n\r\t\v]*<dd>/mgi, tmplt:"; $1: " },
-       { rex:/<blockquote([^>]*)>/mgi, tmplt:function($0,$1){return Wiky.store("["+Wiky.invStyle($1)+Wiky.invAttr($1,["cite","title"])+"\"");} },
-       { rex:/<\/blockquote>/mgi, tmplt:"\"]" },
-       { rex:/<td class=\"?lft\"?>\xB6*[ ]?|<\/tr>/mgi, tmplt:"|" },  // ie6 only ..
-       { rex:/\xB6<tr(?:[^>]*?)>/mgi, tmplt:"\xB6" },
-       { rex:/<td colspan=\"([0-9]+)\"(?:[^>]*?)>/mgi, tmplt:"|$1>" },
-       { rex:/<td(?:[^>]*?)>/mgi, tmplt:"|" },
-       { rex:/<table>/mgi, tmplt:"[" },
-       { rex:/<\/table>/mgi, tmplt:"]" },
-       { rex:/<tr(?:[^>]*?)>\xB6*|<\/td>\xB6*|<tbody>\xB6*|<\/tbody>/mgi, tmplt:"" },
-       { rex:/<hr\/?>/mgi, tmplt:"----" },
-       { rex:/<br\/?>/mgi, tmplt:"\\\\" },
-       { rex:/(<p>|<(d|o|u)l[^>]*>|<\/(dl|ol|ul|p)>|<\/(li|dd)>)/mgi, tmplt:"" },
-       "Wiky.inverse.shortcuts"
-     ],
-     nonwikiinlines: [
-       { rex:/<code>(.*?)<\/code>/g, tmplt:function($0,$1){return Wiky.store("%"+Wiky.apply($1, Wiky.inverse["code"])+"%");} }
-     ],
-     wikiinlines: [
-       { rex:/<strong[^>]*?>(.*?)<\/strong>/mgi, tmplt:"*$1*" },
-       { rex:/<b[^>]*?>(.*?)<\/b>/mgi, tmplt:"*$1*" },
-       { rex:/<em[^>]*?>(.*?)<\/em>/mgi, tmplt:"_$1_" },
-       { rex:/<i[^>]*?>(.*?)<\/i>/mgi, tmplt:"_$1_" },
-       { rex:/<sup[^>]*?>(.*?)<\/sup>/mgi, tmplt:"^$1^" },
-       { rex:/<sub[^>]*?>(.*?)<\/sub>/mgi, tmplt:"~$1~" },
-       { rex:/<del[^>]*?>(.*?)<\/del>/mgi, tmplt:"(-$1-)" },
-       { rex:/<abbr title=\"([^\"]*)\">(.*?)<\/abbr>/mgi, tmplt:"?$2($1)?" },
-       { rex:/<a href=\"([^\"]*)\"[^>]*?>(.*?)<\/a>/mgi, tmplt:function($0,$1,$2){return $1==$2?$1:"["+$1+","+$2+"]";}},
-       { rex:/<img([^>]*)\/>/mgi, tmplt:function($0,$1){var a=Wiky.attrVal($1,"alt"),h=Wiky.attrVal($1,"src"),t=Wiky.attrVal($1,"title"),s=Wiky.attrVal($1,"style");return s||(t&&h!=t)?("["+Wiky.invStyle($1)+"img:"+h+(t&&(","+t))+"]"):h;}},
-     ],
-     escapes: [
-       { rex:/([|*_~%\^])/g, tmplt:"\\$1" },
-       { rex:/&amp;/g, tmplt:"\\&" },
-       { rex:/&gt;/g, tmplt:"\\>" },
-       { rex:/&lt;/g, tmplt:"\\<" }
-     ],
-     shortcuts: [
-       { rex:/&#8211;|\u2013/g, tmplt:"--"},
-       { rex:/&#8212;|\u2014/g, tmplt:"---"},
-       { rex:/&#8230;|\u2026/g, tmplt:"..."},
-       { rex:/&#8596;|\u2194/g, tmplt:"<->"},
-       { rex:/&#8592;|\u2190/g, tmplt:"<-"},
-       { rex:/&#8594;|\u2192/g, tmplt:"->"}
-     ],
-     code: [
-       { rex:/&amp;/g, tmplt:"&"},
-       { rex:/&lt;/g, tmplt:"<"},
-       { rex:/&gt;/g, tmplt:">"}
-     ],
-     lang: {}
-   },
-
-   toHtml: function(str) {
-      Wiky.blocks = [];
-      return Wiky.apply(str, Wiky.rules.all);
-   },
-
-   toWiki: function(str) {
-      Wiky.blocks = [];
-      return Wiky.apply(str, Wiky.inverse.all);
-   },
-
-   apply: function(str, rules) {
-      if (str && rules)
-         for (var i in rules) {
-            if (typeof(rules[i]) == "string")
-               str = Wiky.apply(str, eval(rules[i]));
-            else
-               str = str.replace(rules[i].rex, rules[i].tmplt);
-         }
-      return str;
-   },
-   store: function(str, unresolved) {
-      return unresolved ? "@" + (Wiky.blocks.push(str)-1) + "@"
-                        : "@" + (Wiky.blocks.push(str.replace(/@([0-9]+)@/g, function($0,$1){return Wiky.restore($1);}))-1) + "@";
-   },
-   restore: function(idx) {
-      return Wiky.blocks[idx];
-   },
-   attr: function(str, name, idx) {
-      var a = str && str.split(",")[idx||0];
-      return a ? (name ? (" "+name+"=\""+a+"\"") : a) : "";
-   },
-   hasAttr: function(str, name) {
-      return new RegExp(name+"=").test(str);
-   },
-   attrVal: function(str, name) {
-      return str.replace(new RegExp("^.*?"+name+"=\"(.*?)\".*?$"), "$1");
-   },
-   invAttr: function(str, names) {
-      var a=[], x;
-      for (var i in names)
-         if (str.indexOf(names[i]+"=")>=0) 
-            a.push(str.replace(new RegExp("^.*?"+names[i]+"=\"(.*?)\".*?$"), "$1"));
-      return a.length ? ("("+a.join(",")+")") : "";
-   },
-   style: function(str) {
-      var s = str && str.split(/,|;/), p, style = "";
-      for (var i in s) {
-         p = s[i].split(":");
-         if (p[0] == ">")       style += "margin-left:4em;";
-         else if (p[0] == "<")  style += "margin-right:4em;";
-         else if (p[0] == ">>") style += "float:right;";
-         else if (p[0] == "<<") style += "float:left;";
-         else if (p[0] == "=") style += "display:block;margin:0 auto;";
-         else if (p[0] == "_")  style += "text-decoration:underline;";
-         else if (p[0] == "b")  style += "border:solid 1px;";
-         else if (p[0] == "c")  style += "color:"+p[1]+";";
-         else if (p[0] == "C")  style += "background:"+p[1]+";";
-         else if (p[0] == "w")  style += "width:"+p[1]+";";
-         else                   style += p[0]+":"+p[1]+";";
-      }
-      return style ? " style=\""+style+"\"" : "";
-   },
-   invStyle: function(str) {
-      var s = /style=/.test(str) ? str.replace(/^.*?style=\"(.*?)\".*?$/, "$1") : "",
-          p = s && s.split(";"), pi, prop = [];
-      for (var i in p) {
-         pi = p[i].split(":");
-         if (pi[0] == "margin-left" && pi[1]=="4em") prop.push(">");
-         else if (pi[0] == "margin-right" && pi[1]=="4em") prop.push("<");
-         else if (pi[0] == "float" && pi[1]=="right") prop.push(">>");
-         else if (pi[0] == "float" && pi[1]=="left") prop.push("<<");
-         else if (pi[0] == "margin" && pi[1]=="0 auto") prop.push("=");
-         else if (pi[0] == "display" && pi[1]=="block") ;
-         else if (pi[0] == "text-decoration" && pi[1]=="underline") prop.push("_");
-         else if (pi[0] == "border" && pi[1]=="solid 1px") prop.push("b");
-         else if (pi[0] == "color") prop.push("c:"+pi[1]);
-         else if (pi[0] == "background") prop.push("C:"+pi[1]);
-         else if (pi[0] == "width") prop.push("w:"+pi[1]);
-         else if (pi[0]) prop.push(pi[0]+":"+pi[1]);
-      }
-      return prop.length ? ("{" + prop.join(",") + "}") : "";
-   },
-   sectionRule: function(fromLevel, style, content, toLevel) {
-      var trf = { p_p: "<p>$1</p>",
-                  p_u: "<p>$1</p><ul$3>",
-                  p_o: "<p>$1</p><ol$3>",
-                  // p - ul
-                  // ul - p
-                  u_p: "<li$2>$1</li></ul>",
-                  u_c: "<li$2>$1</li></ul></td>",
-                  u_r: "<li$2>$1</li></ul></td></tr>",
-                  uu_p: "<li$2>$1</li></ul></li></ul>",
-                  uo_p: "<li$2>$1</li></ol></li></ul>",
-                  uuu_p: "<li$2>$1</li></ul></li></ul></li></ul>",
-                  uou_p: "<li$2>$1</li></ul></li></ol></li></ul>",
-                  uuo_p: "<li$2>$1</li></ol></li></ul></li></ul>",
-                  uoo_p: "<li$2>$1</li></ol></li></ol></li></ul>",
-                  // ul - ul
-                  u_u: "<li$2>$1</li>",
-                  uu_u: "<li$2>$1</li></ul></li>",
-                  uo_u: "<li$2>$1</li></ol></li>",
-                  uuu_u: "<li$2>$1</li></ul></li></ul></li>",
-                  uou_u: "<li$2>$1</li></ul></li></ol></li>",
-                  uuo_u: "<li$2>$1</li></ol></li></ul></li>",
-                  uoo_u: "<li$2>$1</li></ol></li></ol></li>",
-                  u_uu: "<li$2>$1<ul$3>",
-                  // ul - ol
-                  u_o: "<li$2>$1</li></ul><ol$3>",
-                  uu_o: "<li$2>$1</li></ul></li></ul><ol$3>",
-                  uo_o: "<li$2>$1</li></ol></li></ul><ol$3>",
-                  uuu_o: "<li$2>$1</li></ul></li></ul></li></ul><ol$3>",
-                  uou_o: "<li$2>$1</li></ul></li></ol></li></ul><ol$3>",
-                  uuo_o: "<li$2>$1</li></ol></li></ul></li></ul><ol$3>",
-                  uoo_o: "<li$2>$1</li></ol></li></ol></li></ul><ol$3>",
-                  u_uo: "<li$2>$1<ol$3>",
-                  // ol - p
-                  o_p: "<li$2>$1</li></ol>",
-                  oo_p: "<li$2>$1</li></ol></li></ol>",
-                  ou_p: "<li$2>$1</li></ul></li></ol>",
-                  ooo_p: "<li$2>$1</li></ol></li></ol>",
-                  ouo_p: "<li$2>$1</li></ol></li></ul></li></ol>",
-                  oou_p: "<li$2>$1</li></ul></li></ol></li></ol>",
-                  ouu_p: "<li$2>$1</li></ul></li></ul></li></ol>",
-                  // ol - ul
-                  o_u: "<li$2>$1</li></ol><ul$3>",
-                  oo_u: "<li$2>$1</li></ol></li></ol><ul$3>",
-                  ou_u: "<li$2>$1</li></ul></li></ol><ul$3>",
-                  ooo_u: "<li$2>$1</li></ol></li></ol></li></ol><ul$3>",
-                  ouo_u: "<li$2>$1</li></ol></li></ul></li></ol><ul$3>",
-                  oou_u: "<li$2>$1</li></ul></li></ol></li></ol><ul$3>",
-                  ouu_u: "<li$2>$1</li></ul></li></ul></li></ol><ul$3>",
-                  o_ou: "<li$2>$1<ul$3>",
-                  // -- ol - ol --
-                  o_o: "<li$2>$1</li>",
-                  oo_o: "<li$2>$1</li></ol></li>",
-                  ou_o: "<li$2>$1</li></ul></li>",
-                  ooo_o: "<li$2>$1</li></ol></li></ol></li>",
-                  ouo_o: "<li$2>$1</li></ol></li></ul></li>",
-                  oou_o: "<li$2>$1</li></ul></li></ol></li>",
-                  ouu_o: "<li$2>$1</li></ul></li></ul></li>",
-                  o_oo: "<li$2>$1<ol$3>",
-                  // -- dl --
-                  l_d: "<dt>$1</dt>",
-                  d_l: "<dd>$1</dd>",
-                  d_u: "<dd>$1</dd></dl><ul>",
-                  d_o: "<dd>$1</dd></dl><ol>",
-                  p_l: "<p>$1</p><dl>",
-                  u_l: "<li$2>$1</li></ul><dl>",
-                  o_l: "<li$2>$1</li></ol><dl>",
-                  uu_l: "<li$2>$1</li></ul></li></ul><dl>",
-                  uo_l: "<li$2>$1</li></ol></li></ul><dl>",
-                  ou_l: "<li$2>$1</li></ul></li></ol><dl>",
-                  oo_l: "<li$2>$1</li></ol></li></ol><dl>",
-                  d_p: "<dd>$1</dd></dl>",
-                  // -- table --
-                  p_t: "<p>$1</p><table>",
-                  p_r: "<p>$1</p></td></tr>",
-                  p_c: "<p>$1</p></td>",
-                  t_p: "</table><p>$1</p>",
-                  r_r: "<tr><td>$1</td></tr>",
-                  r_p: "<tr><td><p>$1</p>",
-                  r_c: "<tr><td>$1</td>",
-                  r_u: "<tr><td>$1<ul>",
-                  c_p: "<td><p>$1</p>",
-                  c_r: "<td>$1</td></tr>",
-                  c_c: "<td>$1</td>",
-//                  c_u: "<td>$1<ul>",
-                  u_t: "<li$2>$1</li></ul><table>",
-                  o_t: "<li$2>$1</li></ol><table>",
-                  d_t: "<dd>$1</dd></dl><table>",
-                  t_u: "</table><p>$1</p><ul>",
-                  t_o: "</table><p>$1</p><ol>",
-                  t_l: "</table><p>$1</p><dl>"
-      };
-      var type = { "0": "decimal-leading-zero",
-                   "1": "decimal",
-                   "a": "lower-alpha",
-                   "A": "upper-alpha",
-                   "i": "lower-roman",
-                   "I": "upper-roman",
-                   "g": "lower-greek" };
-
-      var from = "", to = "", maxlen = Math.max(fromLevel.length, toLevel.length), sync = true, sectiontype = type[toLevel.charAt(toLevel.length-1)], transition;
-
-      for (var i=0; i<maxlen; i++)
-         if (fromLevel.charAt(i+1) != toLevel.charAt(i+1) || !sync || i == maxlen-1)
-         {
-            from += fromLevel.charAt(i) == undefined ? " " : fromLevel.charAt(i);
-            to += toLevel.charAt(i) == undefined ? " " : toLevel.charAt(i);
-            sync = false;
-         }
-      transition = (from + "_" + to).replace(/([01AIagi])/g, "o");
-      return !trf[transition] ? ("?(" +  transition + ")")  // error string !
-                              : trf[transition].replace(/\$2/, " class=\"" + fromLevel + "\"")
-                                               .replace(/\$3/, !sectiontype ? "" : (" style=\"list-style-type:" + sectiontype + ";\""))
-                                               .replace(/\$1/, content)
-                                               .replace(/<p><\/p>/, "");
-   }
-}
diff --git a/unmaintained/furnace-onigiri/resources/wiky/wiky.lang.css b/unmaintained/furnace-onigiri/resources/wiky/wiky.lang.css
deleted file mode 100644
index 0d61d75ff1..0000000000
--- a/unmaintained/furnace-onigiri/resources/wiky/wiky.lang.css
+++ /dev/null
@@ -1,9 +0,0 @@
-pre.syntax { font-size:100%; background: #eed; border:1px dotted #999; padding:0 0.5em; overflow:auto; }
-span.cmt { font-style: italic; color: green; }
-span.str { font-style: italic; color: darkred; }
-span.kwd { color: blue; }
-span.obj  { color: purple; }
-span.mbr  { color: gray; }
-span.xtag { color: blue; }
-span.xnam { color: purple; }
-span.xval { font-style: italic; color: darkred; }
diff --git a/unmaintained/furnace-onigiri/resources/wiky/wiky.lang.js b/unmaintained/furnace-onigiri/resources/wiky/wiky.lang.js
deleted file mode 100644
index dd53e83f35..0000000000
--- a/unmaintained/furnace-onigiri/resources/wiky/wiky.lang.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/*	This work is licensed under Creative Commons GNU LGPL License.
-
-	License: http://creativecommons.org/licenses/LGPL/2.1/
-
-	Author:  Stefan Goessner/2005-06
-	Web:     http://goessner.net/
-
-   credits: http://www.regular-expressions.info/examplesprogrammer.html
-*/
-Wiky.rules.lang.js = [
-      "Wiky.rules.code",
-      { rex:/"([^"\\\xB6]*(\\.[^"\\\xB6]*)*)"/g, tmplt:function($0,$1){return Wiky.store("<span class=\"str\">\""+$1+"\"</span>");}}, // string delimited by '"' with '\"' allowed ..
-      { rex:/'([^'\\\xB6]*(\\.[^'\\\xB6]*)*)'/g, tmplt:function($0,$1){return Wiky.store("<span class=\"str\">\'"+$1+"\'</span>");}}, // string delimited by "'" with "\'" allowed ..
-      { rex:/\/\/(.*?)(?:\xB6|$)/g, tmplt:function($0,$1){return Wiky.store("<span class\=\"cmt\">//"+$1+"</span>\xB6");}}, // single line comment
-      { rex:/\/\*(.*?)\*\//g, tmplt:function($0,$1){return Wiky.store("<span class\=\"cmt\">\/*"+$1+"*\/</span>");}}, // multi-line comment
-//       { rex:/([\]\[\-+\|*!%<>=\{\}?:,\)\(]+)|(&#34;|&#47;|&#61;)+/g, tmplt:"<span class=\"op\">$1</span>"}, // operators
-      { rex:/\b(break|case|catch|continue|do|else|false|for|function|if|in|new|return|switch|this|throw|true|try|var|while|with)\b/g, tmplt:"<span class=\"kwd\">$1</span>" }, // keywords
-      { rex:/\b(arguments|Array|Boolean|Date|Error|Function|Global|Math|Number|Object|RegExp|String)\b/g, tmplt:"<span class=\"obj\">$1</span>" }, // objects
-      { rex:/\.(abs|acos|anchor|arguments|asin|atan|atan2|big|blink|bold|callee|caller|ceil|charAt|charCodeAt|concat|constructor|cos|E|escape|eval|exp|fixed|floor|fontcolor|fontsize|fromCharCode|getDate|getDay|getFullYear|getHours|getMilliseconds|getMinutes|getMonth|getSeconds|getTime|getTimezoneOffset|getUTCDate|getUTCDay|getUTCFullYear|getUTCHours|getUTCMilliseconds|getUTCMinutes|getUTCMonth|getUTCSeconds|getVarDate|getYear|index|indexOf|Infinity|input|isFinite|isNaN|italics|join|lastIndex|lastIndexOf|lastMatch|lastParen|leftContext|length|link|LN10|LN2|log|LOG10E|LOG2E|match|max|MAX_VALUE|min|MIN_VALUE|NaN|NaN|NEGATIVE_INFINITY|parse|parseFloat|parseInt|PI|pop|POSITIVE_INFINITY|pow|prototype|push|random|replace|reverse|rightContext|round|search|setDate|setFullYear|setHours|setMilliseconds|setMinutes|setMonth|setSeconds|setTime|setUTCDate|setUTCFullYear|setUTCHours|setUTCMilliseconds|setUTCMinutes|setUTCMonth|setUTCSeconds|setYear|shift|sin|slice|slice|small|sort|splice|split|sqrt|SQRT1_2|SQRT2|strike|sub|substr|substring|sup|tan|toGMTString|toLocaleString|toLowerCase|toString|toUpperCase|toUTCString|unescape|unshift|UTC|valueOf)\b/g, tmplt:".<span class=\"mbr\">$1</span>" }, // members
-];
-Wiky.rules.lang.xml = [
-      { rex:/<script([^>]*)>(.*?)<\/script>/g, tmplt:function($0,$1,$2){return "<script"+$1+">"+Wiky.store(Wiky.apply($2, Wiky.rules.lang.js))+"</script>";} }, // script blocks ..
-      { rex:/<!\[CDATA\[(.*?)\]\]>/g, tmplt:function($0,$1){return Wiky.store("&lt;![CDATA["+$1+"]]&gt;");} }, // CDATA sections, ..
-      { rex:/<!(.*?)>/g, tmplt:function($0,$1){return Wiky.store("<span class=\"cmt\">&lt;!"+$1+"&gt;</span>");} }, // inline xml comments, doctypes, ..
-      { rex:/</g, tmplt:"\xAB"}, // replace '<' by '«'
-      { rex:/>/g, tmplt:"\xBB"}, // replace '>' by '»'
-      { rex:/([-A-Za-z0-9_:]+)[ ]*=[ ]*\"(.*?)\"/g, tmplt:"<span class=\"xnam\">$1</span>=<span class=\"xval\">&quot;$2&quot;</span>"}, // "xml attribute value strings ..
-      { rex:/(\xAB[\/]?)([-A-Za-z0-9_:]+)/g, tmplt:"$1<span class=\"xtag\">$2</span>"}, // "xml tag ..
-      { rex:/\xAB/g, tmplt:"&lt;"}, // replace '«' by '<'
-      { rex:/\xBB/g, tmplt:"&gt;"}, // replace '»' by '>'
-];
-Wiky.inverse.lang.js = [
-     { rex:/<span class=\"?(cmt|kwd|mbr|obj|str)\"?>|<\/span>/mgi, tmplt:"" },
-     { rex:/<strong>(.*?)<\/strong>/mgi, tmplt:"[*$1*]" },
-      "Wiky.inverse.code"
-];
-Wiky.inverse.lang.xml = [
-     { rex:/<span class=\"?(cmt|xtag|xnam|xval)\"?>|<\/span>/mgi, tmplt:"" },
-     "Wiky.inverse.lang.js"
-];
diff --git a/unmaintained/furnace-onigiri/resources/wiky/wiky.math.css b/unmaintained/furnace-onigiri/resources/wiky/wiky.math.css
deleted file mode 100644
index de2a6f572d..0000000000
--- a/unmaintained/furnace-onigiri/resources/wiky/wiky.math.css
+++ /dev/null
@@ -1,88 +0,0 @@
-/* math */
-dfn, div.eq {
-  white-space: nowrap;
-  font-family: sans-serif;
-  font-style: normal;
-  color: navy;
-}
-div.eq {
-   margin-left: 3em;
-   margin-right: 1em;
-}
-div.eq a {float:right}
-
-span.h {  /* huge */
-  font-size:150%; 
-}
-
-span.o, span.s, span.f {
-  display:-moz-inline-box;
-  -moz-box-orient:vertical;
-  display:inline-block; 
-  vertical-align:middle; 
-  margin:0 0.2em;
-}
-
-span.x, span.i, span.d, span.n, span.o span {
-  display: block;
-}
-
-span.x, span.d, span.n, span.s, span.o span {
-  text-align:center;
-  margin:0 0.2em;
-}
-
-span.n, span.d {
-  font-size: 90%;
-}
-
-span.i {
-  text-align: left;
-  margin:0 0.2em 0 0;
-}
-span.b {
-  font-weight: bold;
-}
-
-span.x, span.i, span.f span.f {
-  font-size: 80%;
-}
-
-span.n {
-  border-bottom:solid 1px navy;
-}
-
-span.v, span.m {
-  display:-moz-inline-box;
-  -moz-box-orient:vertical;
-  display:inline-block;
-  vertical-align:middle; 
-}
-span.v span.e, span.m span.e {
-  font-size: 90%;
-  white-space:nowrap;
-  display: block;
-  text-align:center;
-  margin:0.2em;
-}
-/*span.m > span.e { height:2em; }*/ /* hide ie 6 */
-
-span.lb, span.rb {
-  margin:0; 
-  padding:0; 
-  vertical-align: middle; 
-  border-top:1px solid navy; 
-  border-bottom:1px solid navy;
-}
-span.lb {
-  border-left:1px solid navy; 
-}
-span.rb {
-  border-right:1px solid navy; 
-}
-span.lbrk2, span.rbrk2 {
-  font-size:200%; 
-}
-span.lbrk3, span.rbrk3 {
-  font-size:300%; 
-}
diff --git a/unmaintained/furnace-onigiri/resources/wiky/wiky.math.js b/unmaintained/furnace-onigiri/resources/wiky/wiky.math.js
deleted file mode 100644
index 26cf41e266..0000000000
--- a/unmaintained/furnace-onigiri/resources/wiky/wiky.math.js
+++ /dev/null
@@ -1,374 +0,0 @@
-/*	This work is licensed under Creative Commons GNU LGPL License.
-
-	License: http://creativecommons.org/licenses/LGPL/2.1/
-
-	Author:  Stefan Goessner/2005-06
-	Web:     http://goessner.net/ 
-   inspired by: http://xml-maiden.com/
-*/
-Wiky.rules.math = {
-   version: 0.95,
-   preshortcuts: [
-//      { rex:/[ ]/g, tmplt:"`"},   // omit due to charset support ie6
-      { rex:/\+\-/g, tmplt:"&#177;"},
-      { rex:/\/O|\\Oslash/g, tmplt:"&#216;"},
-      { rex:/\/o|\\oslash/g, tmplt:"&#248;"},
-      { rex:/<->|\\harr/g, tmplt:"&#8596;"},
-      { rex:/<-|\\larr/g, tmplt:"&#8592;"},
-      { rex:/->|\\rarr/g, tmplt:"&#8594;"},
-      { rex:/<=>|\\hArr/g, tmplt:"&#8660;"},
-      { rex:/=>|\\rArr/g, tmplt:"&#8658;"},
-      { rex:/-=|\\equiv/g, tmplt:"&#8801;"},
-      { rex:/<=|\\le/g, tmplt:"&#8804;"},
-      { rex:/>=|\\ge/g, tmplt:"&#8805;"},
-      { rex:/</g, tmplt:"&lt;"},
-      { rex:/>/g, tmplt:"&gt;"}
-   ],
-   postshortcuts: [
-      { rex:/\*|\\middot/g, tmplt:"&#183;"},
-      { rex:/\\x|\\times/g, tmplt:"&#215;"},
-      { rex:/~=|\\cong/g, tmplt:"&#8773;"},
-      { rex:/~~|\\asymp/g, tmplt:"&#8776;"},
-      { rex:/~|\\sim/g, tmplt:"&#8764;"},
-      { rex:/!=|\\neq|\\ne/g, tmplt:"&#8800;"},
-      { rex:/\.\.\.|\\ldots/g, tmplt:"&#8230;"},
-      { rex:/\\in|\\isin/g, tmplt:"&#8712;"},
-      { rex:/([0-9])x([0-9])/g, tmplt:"$1&#215;$2"}, 
-      { rex:/([A-Za-z]) x ([A-Za-z])/g, tmplt:"$1&#215;$2"},
-//      { rex:/[`]{4}/g, tmplt:"&#8195;"},  // omit due to charset support ie6
-//      { rex:/[`]{3}/g, tmplt:"&#8194;"},
-//      { rex:/[`]{2}/g, tmplt:"  "},
-//      { rex:/[`]/g, tmplt:"&#8201;"},
-      { rex:/\{/g, tmplt:"&#8206;"},  // unvisible left-to-right mark,
-      { rex:/\}/g, tmplt:"&#8207;"}   // unvisible right-to-left mark,
-   ],
-   expr: [
-      { rex:/\^\^/g, tmplt:"^&#94;"},  // ^ overindex
-      { rex:/(\\sum|\\prod|\\int)_([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})\^([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<span class=\"o\"><span class=\"x\">$3</span>$1<span class=\"x\">$2</span></span>"}, // over-/underscript (\sum, \prod, \int)
-      { rex:/(\\sum|\\prod|\\int)\^([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<span class=\"o\"><span class=\"x\">$2</span>$1<span>&#160;</span></span>"},
-      { rex:/(\\sum|\\prod|\\int)_([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<span class=\"o\"><span>&#160;</span>$1<span class=\"x\">$2</span></span>"},
-      { rex:/_([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})\^([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<span class=\"s\"><span class=\"i\">$2</span><span class=\"i\">$1</span></span>"}, // over-/underindex
-      { rex:/\^([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<sup class=\"i\">$1</sup>"}, // overindex
-      { rex:/_([-]?[a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<sub class=\"i\">$1</sub>"}, // underindex
-      { rex:/-/g, tmplt:"&#8722;"},
-      { rex:/([a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})\/([a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<span class=\"f\"><span class=\"n\">$1</span><span class=\"d\">$2</span></span>"},  // fraction
-      { rex:/([a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})\/\/([a-zA-Z0-9\.&;#\\]+|\{@[0-9]+@\})/g, tmplt:"<sup>$1</sup>&#8260;<sub>$2</sub>"}, // fraction 
-      { rex:/\[((\[(([^,\]]+[,]){1,}[^\]]+)\][ \n]*){1,})\]/g, tmplt:function($0,$1){var m=Wiky.math.transpose($1.replace(/(^\[|\]$)/g,"").replace(/(\][ \n]*\[)/g,"|").split("|")),sz=" style=\"font-size:"+(m.len)+"00%;\"";/*alert("{("+m.mat.join(")}\n{(").split(",").join(")(")+")}");*/ return "<span class=\"lb\""+sz+">"+Wiky.math.fence()+"</span><span class=\"m\"><span class=\"e\">"+m.mat.join("</span></span>\n<span class=\"m\"><span class=\"e\">").split(",").join("</span><span class=\"e\">")+"</span></span><span class=\"rb\""+sz+">"+Wiky.math.fence()+"</span>";}}, // matrix
-      { rex:/\[((?:[^,\]]){1,}[^\]]+)\]/g, tmplt:function($0,$1){var v=$1.split(","),sz=" style=\"font-size:"+v.length+"00%;\""; return "<span class=\"lb\""+sz+">"+Wiky.math.fence()+"</span><span class=\"v\"><span class=\"e\">"+v.join("</span><span class=\"e\">")+"</span></span><span class=\"rb\""+sz+">"+Wiky.math.fence()+"</span>";}}, // vector
-      { rex:/!([a-zA-Z0-9\.&;]+)/g, tmplt:"<span class=\"b\">$1</span>" }, // bold vector symbol ..
-      { rex:/\\prod/g, tmplt:"<span class=\"h\">&#8719;</span>"},
-      { rex:/\\sum/g, tmplt:"<span class=\"h\">&#8721;</span>"},
-      { rex:/\\int/g, tmplt:"<span class=\"h\">&#8747;</span>"},
-      "Wiky.rules.math.postshortcuts"
-   ],
-   symbols: [
-      { rex:/\\Alpha/g, tmplt:"&#913;"},
-      { rex:/\\Beta/g, tmplt:"&#914;"},
-      { rex:/\\Gamma/g, tmplt:"&#915;"},
-      { rex:/\\Delta/g, tmplt:"&#916;"},
-      { rex:/\\Epsilon/g, tmplt:"&#917;"},
-      { rex:/\\Zeta/g, tmplt:"&#918;"},
-      { rex:/\\Eta/g, tmplt:"&#919;"},
-      { rex:/\\Theta/g, tmplt:"&#920;"},
-      { rex:/\\Iota/g, tmplt:"&#921;"},
-      { rex:/\\Kappa/g, tmplt:"&#922;"},
-      { rex:/\\Lambda/g, tmplt:"&#923;"},
-      { rex:/\\Mu/g, tmplt:"&#924;"},
-      { rex:/\\Nu/g, tmplt:"&#925;"},
-      { rex:/\\Xi/g, tmplt:"&#926;"},
-      { rex:/\\Omicron/g, tmplt:"&#927;"},
-      { rex:/\\Pi/g, tmplt:"&#928;"},
-      { rex:/\\Rho/g, tmplt:"&#929;"},
-      { rex:/\\Sigma/g, tmplt:"&#931;"},
-      { rex:/\\Tau/g, tmplt:"&#932;"},
-      { rex:/\\Upsilon/g, tmplt:"&#933;"},
-      { rex:/\\Phi/g, tmplt:"&#934;"},
-      { rex:/\\Chi/g, tmplt:"&#935;"},
-      { rex:/\\Psi/g, tmplt:"&#936;"},
-      { rex:/\\Omega/g, tmplt:"&#937;"},
-      { rex:/\\alpha/g, tmplt:"&#945;"},
-      { rex:/\\beta/g, tmplt:"&#946;"},
-      { rex:/\\gamma/g, tmplt:"&#947;"},
-      { rex:/\\delta/g, tmplt:"&#948;"},
-      { rex:/\\epsilon/g, tmplt:"&#949;"},
-      { rex:/\\zeta/g, tmplt:"&#950;"},
-      { rex:/\\eta/g, tmplt:"&#951;"},
-      { rex:/\\thetasym/g, tmplt:"&#977;"},
-      { rex:/\\theta/g, tmplt:"&#952;"},
-      { rex:/\\iota/g, tmplt:"&#953;"},
-      { rex:/\\kappa/g, tmplt:"&#954;"},
-      { rex:/\\lambda/g, tmplt:"&#955;"},
-      { rex:/\\mu/g, tmplt:"&#956;"},
-      { rex:/\\nu/g, tmplt:"&#957;"},
-      { rex:/\\xi/g, tmplt:"&#958;"},
-      { rex:/\\omicron/g, tmplt:"&#959;"},
-      { rex:/\\piv/g, tmplt:"&#982;"},
-      { rex:/\\pi/g, tmplt:"&#960;"},
-      { rex:/\\rho/g, tmplt:"&#961;"},
-      { rex:/\\sigmaf/g, tmplt:"&#962;"},
-      { rex:/\\sigma/g, tmplt:"&#963;"},
-      { rex:/\\tau/g, tmplt:"&#964;"},
-      { rex:/\\upsilon/g, tmplt:"&#965;"},
-      { rex:/\\phi/g, tmplt:"&#966;"},
-      { rex:/\\chi/g, tmplt:"&#967;"},
-      { rex:/\\psi/g, tmplt:"&#968;"},
-      { rex:/\\omega/g, tmplt:"&#969;"},
-      { rex:/\\upsih/g, tmplt:"&#978;"},
-      // miscellaneous symbols
-      { rex:/\\bull/g, tmplt:"&#8226;"},
-      { rex:/\\uarr/g, tmplt:"&#8593;"},
-      { rex:/\\darr/g, tmplt:"&#8595;"},
-      { rex:/\\crarr/g, tmplt:"&#8629;"},
-      { rex:/\\lArr/g, tmplt:"&#8656;"},
-      { rex:/\\uArr/g, tmplt:"&#8657;"},
-      { rex:/\\dArr/g, tmplt:"&#8659;"},
-      { rex:/\\forall/g, tmplt:"&#8704;"},
-      { rex:/\\part/g, tmplt:"&#8706;"},
-      { rex:/\\exist/g, tmplt:"&#8707;"},
-      { rex:/\\empty/g, tmplt:"&#8709;"},
-      { rex:/\\nabla/g, tmplt:"&#8711;"},
-      { rex:/\\notin/g, tmplt:"&#8713;"},
-      { rex:/\\ni/g, tmplt:"&#8715;"},
-      { rex:/\\minus/g, tmplt:"&#8722;"},
-      { rex:/\\lowast/g, tmplt:"&#8727;"},
-      { rex:/\\sqrt|\\radic/g, tmplt:"&#8730;"},
-      { rex:/\\prop/g, tmplt:"&#8733;"},
-      { rex:/\\infin/g, tmplt:"&#8734;"},
-      { rex:/\\ang/g, tmplt:"&#8736;"},
-      { rex:/\\and/g, tmplt:"&#8743;"},
-      { rex:/\\or/g, tmplt:"&#8744;"},
-      { rex:/\\cap/g, tmplt:"&#8745;"},
-      { rex:/\\cup/g, tmplt:"&#8746;"},
-      { rex:/\\there4/g, tmplt:"&#8756;"},
-      { rex:/\\sub/g, tmplt:"&#8834;"},
-      { rex:/\\sup/g, tmplt:"&#8835;"},
-      { rex:/\\nsub/g, tmplt:"&#8836;"},
-      { rex:/\\sube/g, tmplt:"&#8838;"},
-      { rex:/\\supe/g, tmplt:"&#8839;"},
-      { rex:/\\oplus/g, tmplt:"&#8853;"},
-      { rex:/\\otimes/g, tmplt:"&#8855;"},
-      { rex:/\\perp/g, tmplt:"&#8869;"},
-      { rex:/\\sdot/g, tmplt:"&#8901;"}
-   ]
-};
-
-Wiky.inverse.math = {
-   pre: [
-      { rex:/&#8722;|\u2212/g, tmplt:"-"},
-      { rex:/&#8201;|\u2009/g, tmplt:"&#8201;"},
-      { rex:/&#8206;|\u200E/g, tmplt:"{"},
-      { rex:/&#8207;|\u200F/g, tmplt:"}"}
-   ],
-   post: [
-//      { rex:/([$])/g, tmplt:"\\$1" },
-      { rex:/&#94;|\x5E/g, tmplt:"^"},
-      { rex:/&lt;/g, tmplt:"<"},
-      { rex:/&gt;/g, tmplt:">"}
-   ],
-   shortcuts: [
-//      { rex:/&#8195;|\u2003/g, tmplt:"    "}, // omit due to charset support ie6
-//      { rex:/&#8194;|\u2002/g, tmplt:"   "},
-//      { rex:/&#8201;|\u2009/g, tmplt:" "},
-      { rex:/&#177;|\xB1/g, tmplt:"+-"},
-      { rex:/&#183;|\xB7/g, tmplt:"*"},
-      { rex:/&#215;|\xD7/g, tmplt:"\\x"},
-      { rex:/&#216;|\xD8/g, tmplt:"/O"},
-      { rex:/&#248;|\xF8/g, tmplt:"/o"},
-      { rex:/&#8592;|\u2190/g, tmplt:"&lt;-"},
-      { rex:/&#8594;|\u2192/g, tmplt:"-&gt;"},
-      { rex:/&#8596;|\u2194/g, tmplt:"&lt;-&gt;"},
-      { rex:/&#8658;|\u21D2/g, tmplt:"=&gt;"},
-      { rex:/&#8660;|\u21D4/g, tmplt:"&lt;=&gt;"},
-      { rex:/&#8764;|\u223C/g, tmplt:"~"},
-      { rex:/&#8773;|\u2245/g, tmplt:"~="},
-      { rex:/&#8776;|\u2248/g, tmplt:"~~"},
-      { rex:/&#8800;|\u2260/g, tmplt:"!="},
-      { rex:/&#8230;/g, tmplt:"..."},
-      { rex:/&#8801;|\u2261/g, tmplt:"-="},
-      { rex:/&#8804;|\u2264/g, tmplt:"&lt;="},
-      { rex:/&#8805;|\u2265/g, tmplt:"&gt;="}
-   ],
-   expr: [
-      { rex:/<span class=\"s\"><span class=\"i\">(\{?@[0-9]+@\}?)<\/span><span class="i">(\{?@[0-9]+@\}?)<\/span><\/span>/g, tmplt:"_$2^$1"}, // superscript + subscript
-      { rex:/<span class=\"o\"><span class=\"x\">(\{?@[0-9]+@\}?)<\/span>(\\prod|\\sum|\\int)<span class=\"x\">(\{?@[0-9]+@\}?)<\/span><\/span>/g, tmplt:"$2_$3^$1"},  // overscript + underscript
-      { rex:/<span class=\"o\"><span>@[0-9]+@<\/span>(\\prod|\\sum|\\int)<span class=\"x\">(\{?@[0-9]+@\}?)<\/span><\/span>/mgi, tmplt:"$1_$2", dbg:true},  // underscript
-      { rex:/<span class=\"o\"><span class=\"x\">(\{?@[0-9]+@\}?)<\/span>(\\prod|\\sum|\\int)<span>@[0-9]+@<\/span><\/span>/mgi, tmplt:"$2^$1"},  // overscript
-      { rex:/<span class=\"f\"><span class=\"n\">(\{?@[0-9]+@\}?)<\/span><span class="d">(\{?@[0-9]+@\}?)<\/span><\/span>/mgi, tmplt:"$1/$2"},  // fraction
-      { rex:/<span class=\"lb\"[^>]*>&[^;]+;<\/span><span class=\"v\">((?:<span class=\"e\">[^>]*<\/span>){2,})<\/span><span class=\"rb\"[^>]*>&[^;]+;<\/span>/mgi, tmplt:function($0,$1){return "["+$1.replace(/(?:^<span class=\"e\">|<\/span>$)/g,"").replace(/<\/span><span class=\"e\">/g,",")+"]";}}, // vector ..
-      { rex:/<span class=\"lb\"[^>]*>&[^;]+;<\/span>((?:<span class=\"m\">(?:(?:<span class=\"e\">[^>]*<\/span>){2,})<\/span>[^>]*){2,})<span class=\"rb\"[^>]*>&[^;]+;<\/span>/mgi, tmplt:function($0,$1){return "[["+Wiky.math.transpose($1.replace(/(?:^<span class=\"m\"><span class=\"e\">|<\/span><\/span>$)/g,"").replace(/<\/span><span class=\"e\">/g,",").replace(/<\/span><\/span>[^>]*<span class=\"m\"><span class=\"e\">/g,"|").split("|")).mat.join("][")+"]]";}}, // matrix ..
-      { rex:/<span class=\"b\">(@[0-9]+@)<\/span>/mgi, tmplt:"!$1"}, // bold vector ..
-      { rex:/<sup>(\{?@[0-9]+@\}?)<\/sup>&#8260;<sub>(\{?@[0-9]+@\}?)<\/sub>/mgi, tmplt:"$1//$2"},
-      { rex:/<sup class=\"i\">(\{?@[0-9]+@\}?)<\/sup>/mgi, tmplt:"^$1" }, 
-      { rex:/<sub class=\"i\">(\{?@[0-9]+@\}?)<\/sub>/mgi, tmplt:"_$1" }
-   ],
-   symbols: [
-      // greek symbols
-      { rex:/&#913;|\u391/g, tmplt:"\\Alpha"},
-      { rex:/&#914;|\u392/g, tmplt:"\\Beta"},
-      { rex:/&#915;|\u393/g, tmplt:"\\Gamma"},
-      { rex:/&#916;|\u394/g, tmplt:"\\Delta"},
-      { rex:/&#917;|\u395/g, tmplt:"\\Epsilon"},
-      { rex:/&#918;|\u396/g, tmplt:"\\Zeta"},
-      { rex:/&#919;|\u397/g, tmplt:"\\Eta"},
-      { rex:/&#920;|\u398/g, tmplt:"\\Theta"},
-      { rex:/&#921;|\u399/g, tmplt:"\\Iota"},
-      { rex:/&#922;|\u39A/g, tmplt:"\\Kappa"},
-      { rex:/&#923;|\u39B/g, tmplt:"\\Lambda"},
-      { rex:/&#924;|\u39C/g, tmplt:"\\Mu"},
-      { rex:/&#925;|\u39D/g, tmplt:"\\Nu"},
-      { rex:/&#926;|\u39E/g, tmplt:"\\Xi"},
-      { rex:/&#927;|\u39F/g, tmplt:"\\Omicron"},
-      { rex:/&#928;|\u3A0/g, tmplt:"\\Pi"},
-      { rex:/&#929;|\u3A1/g, tmplt:"\\Rho"},
-      { rex:/&#931;|\u3A3/g, tmplt:"\\Sigma"},
-      { rex:/&#932;|\u3A4/g, tmplt:"\\Tau"},
-      { rex:/&#933;|\u3A5/g, tmplt:"\\Upsilon"},
-      { rex:/&#934;|\u3A6/g, tmplt:"\\Phi"},
-      { rex:/&#935;|\u3A7/g, tmplt:"\\Chi"},
-      { rex:/&#936;|\u3A8/g, tmplt:"\\Psi"},
-      { rex:/&#937;|\u3A9/g, tmplt:"\\Omega"},
-      { rex:/&#945;|\u3B1/g, tmplt:"\\alpha"},
-      { rex:/&#946;|\u3B2/g, tmplt:"\\beta"},
-      { rex:/&#947;|\u3B3/g, tmplt:"\\gamma"},
-      { rex:/&#948;|\u3B4/g, tmplt:"\\delta"},
-      { rex:/&#949;|\u3B5/g, tmplt:"\\epsilon"},
-      { rex:/&#950;|\u3B6/g, tmplt:"\\zeta"},
-      { rex:/&#951;|\u3B7/g, tmplt:"\\eta"},
-      { rex:/&#977;|\u3D1/g, tmplt:"\\thetasym"},
-      { rex:/&#952;|\u3B8/g, tmplt:"\\theta"},
-      { rex:/&#953;|\u3B9/g, tmplt:"\\iota"},
-      { rex:/&#954;|\u3BA/g, tmplt:"\\kappa"},
-      { rex:/&#955;|\u3BB/g, tmplt:"\\lambda"},
-      { rex:/&#956;|\u3BC/g, tmplt:"\\mu"},
-      { rex:/&#957;|\u3BD/g, tmplt:"\\nu"},
-      { rex:/&#958;|\u3BE/g, tmplt:"\\xi"},
-      { rex:/&#959;|\u3BF/g, tmplt:"\\omicron"},
-      { rex:/&#960;|\u3C0/g, tmplt:"\\pi"},
-      { rex:/&#961;|\u3C1/g, tmplt:"\\rho"},
-      { rex:/&#962;|\u3C2/g, tmplt:"\\sigmaf"},
-      { rex:/&#963;|\u3C3/g, tmplt:"\\sigma"},
-      { rex:/&#964;|\u3C4/g, tmplt:"\\tau"},
-      { rex:/&#965;|\u3C5/g, tmplt:"\\upsilon"},
-      { rex:/&#966;|\u3C6/g, tmplt:"\\phi"},
-      { rex:/&#967;|\u3C7/g, tmplt:"\\chi"},
-      { rex:/&#968;|\u3C8/g, tmplt:"\\psi"},
-      { rex:/&#969;|\u3C9/g, tmplt:"\\omega"},
-      // miscellaneous symbols
-      { rex:/&#978;|\u3D2/g, tmplt:"\\upsih"},
-      { rex:/&#982;|\u3D6/g, tmplt:"\\piv"},
-      { rex:/&#8226;|\u2022/g, tmplt:"\\bull"},
-      { rex:/&#8593;|\u2191/g, tmplt:"\\uarr"},
-      { rex:/&#8595;|\u2193/g, tmplt:"\\darr"},
-      { rex:/&#8629;|\u21B5/g, tmplt:"\\crarr"},
-      { rex:/&#8656;|\u21D0/g, tmplt:"\\lArr"},
-      { rex:/&#8657;|\u21D1/g, tmplt:"\\uArr"},
-      { rex:/&#8659;|\u21D3/g, tmplt:"\\dArr"},
-      { rex:/&#8704;|\u2200/g, tmplt:"\\forall"},
-      { rex:/&#8706;|\u2202/g, tmplt:"\\part"},
-      { rex:/&#8707;|\u2203/g, tmplt:"\\exist"},
-      { rex:/&#8709;|\u2205/g, tmplt:"\\empty"},
-      { rex:/&#8711;|\u2207/g, tmplt:"\\nabla"},
-      { rex:/&#8712;|\u2208/g, tmplt:"\\isin"},
-      { rex:/&#8713;|\u2209/g, tmplt:"\\notin"},
-      { rex:/&#8715;|\u220B/g, tmplt:"\\ni"},
-      { rex:/<span class=\"h\">(&#8719;|\u220F)<\/span>/g, tmplt:"\\prod"},
-      { rex:/<span class=\"h\">(&#8721;|\u2211)<\/span>/g, tmplt:"\\sum"},
-      { rex:/&#8727;|\u2217/g, tmplt:"\\lowast"},
-      { rex:/&#8730;|\u221A/g, tmplt:"\\sqrt"},
-      { rex:/&#8733;|\u221D/g, tmplt:"\\prop"},
-      { rex:/&#8734;|\u221E/g, tmplt:"\\infin"},
-      { rex:/&#8736;|\u2220/g, tmplt:"\\ang"},
-      { rex:/&#8743;|\u2227/g, tmplt:"\\and"},
-      { rex:/&#8744;|\u2228/g, tmplt:"\\or"},
-      { rex:/&#8745;|\u2229/g, tmplt:"\\cap"},
-      { rex:/&#8746;|\u222A/g, tmplt:"\\cup"},
-      { rex:/<span class=\"h\">(?:&#8747;|\u222B)<\/span>/g, tmplt:"\\int"},
-      { rex:/&#8756;|\u2234/g, tmplt:"\\there4"},
-      { rex:/&#8834;|\u2282/g, tmplt:"\\sub"},
-      { rex:/&#8835;|\u2283/g, tmplt:"\\sup"},
-      { rex:/&#8836;|\u2284/g, tmplt:"\\nsub"},
-      { rex:/&#8838;|\u2286/g, tmplt:"\\sube"},
-      { rex:/&#8839;|\u2287/g, tmplt:"\\supe"},
-      { rex:/&#8853;|\u2295/g, tmplt:"\\oplus"},
-      { rex:/&#8855;|\u2297/g, tmplt:"\\otimes"},
-      { rex:/&#8869;|\u22A5/g, tmplt:"\\perp"},
-      { rex:/&#8901;|\u22C5/g, tmplt:"\\sdot"}
-   ]
-};
-
-Wiky.math = {
-   toHtml: function(str) {
-      var expr = function(itr) {  // region from "{" to "}", nesting allowed ..
-         var s = "";
-         for (var c = itr.str.charAt(itr.pos++); itr.pos <= itr.str.length && c != "}"; c = itr.str.charAt(itr.pos++))
-            s += (c == "{") ? ("{"+expr(itr)+"}") : c;
-         return Wiky.store(Wiky.apply(s, Wiky.rules.math.expr));
-      };
-      str = Wiky.apply(str, Wiky.rules.math.preshortcuts);
-      str = Wiky.apply(str, Wiky.rules.math.symbols);
-      str = expr({str:str,pos:0});
-      return str;
-   },
-   toWiki: function(str) {
-      var parseTree = function(itr, endtag) {
-         var c, s="",gt,nam,idxof=function(s,c,p){var i=s.indexOf(c,p);return i>=0?i:s.length;}
-         for (itr.buf=itr.str.substr(itr.pos,endtag.length); 
-              itr.pos<itr.str.length && (!endtag || itr.buf!=endtag); 
-              itr.buf=itr.str.substr(++itr.pos,endtag.length)) {
-            if ((c=itr.str.charAt(itr.pos))=="<" && (gt=idxof(itr.str,">",itr.pos)) < idxof(itr.str,"/",itr.pos)) { // start tags .. no empty elements or endtags ..
-               nam = itr.str.substring(itr.pos+1,Math.min(idxof(itr.str," ",itr.pos),gt));
-               s += itr.str.substring(itr.pos,itr.pos=gt+1) + parseTree(itr, "</" + nam + ">") + "</" + nam + ">";
-               itr.pos += nam.length+3;
-            }
-            else
-               s += c;
-         }
-         itr.pos--;
-         return Wiky.store(s, true);
-      };
-      str = Wiky.apply(str, Wiky.inverse.math.pre);
-      str = Wiky.apply(str, Wiky.inverse.math.symbols);
-      str = parseTree({str:str,pos:0,buf:null}, "");
-      while (str.match(/@[0-9]+@/g) != null)
-         str = Wiky.apply(str.replace(/@([0-9]+)@/g, function($0,$1){return Wiky.restore($1);}), Wiky.inverse.math.expr);
-      str = Wiky.apply(str, Wiky.inverse.math.shortcuts);
-      str = Wiky.apply(str, Wiky.inverse.math.post);
-      return str;
-   },
-   fence: function(str) {
-      return window && window.ActiveXObject ? "&#160;" : "&#8201;";
-   },
-   transpose: function (m) {
-      var t=[];
-      for (var i in m) {
-         m[i] = m[i].split(",");
-         for (var j in m[i]) {
-            if (!t[j]) t[j]=[];
-            t[j][i] = m[i][j];
-         }
-      }
-      for (var i in t)
-         t[i] = t[i].join(",");
-     return {mat:t, len:m.length};
-  }
-};
-
-Wiky.rules.pre = Wiky.rules.pre.concat({ rex:/\\([$])/g, tmplt:function($0,$1){return Wiky.store($1);} });
-Wiky.rules.nonwikiblocks = Wiky.rules.nonwikiblocks.concat(
-[
-    { rex:/\[\(([a-zA-Z0-9\.-]+)\)\$([^$]*)\$\]/g, tmplt:function($0,$1,$2){return ":p]<div class=\"eq\"><a name=\"eq"+$1+"\">("+$1+")</a>" + Wiky.math.toHtml($2) + "</div>[p:";} }, // numbered equation
-    { rex:/\[\$([^$]*)\$\]/g, tmplt:function($0,$1){return ":p]<div class=\"eq\">" + Wiky.math.toHtml($1) + "</div>[p:";} }, // equation
-]);
-Wiky.rules.nonwikiinlines = Wiky.rules.nonwikiinlines.concat(
-    { rex:/\$([^$]*)\$/g, tmplt:function($0,$1){return "<dfn>" + Wiky.math.toHtml($1) + "</dfn>";} } // inline equation
-);
-
-Wiky.inverse.pre = Wiky.inverse.pre.concat({ rex:/([\$])/g, tmplt:"\\$1" });
-Wiky.inverse.nonwikiblocks = Wiky.inverse.nonwikiblocks.concat(
-[
-    { rex:/<div class=\"eq\"><a name=\"eq([0-9]+)\">(?:.*?)<\/a>(.*?)<\/div>/g, tmplt:function($0,$1,$2){return Wiky.store("[("+$1+")$"+Wiky.math.toWiki($2)+"$]");} }, // numbered equation
-    { rex:/<div class=\"eq\">(.*?)<\/div>/g, tmplt:function($0,$1){return Wiky.store("[$"+Wiky.math.toWiki($1)+"$]");} }, // equation
-]);
-Wiky.inverse.nonwikiinlines = Wiky.inverse.nonwikiinlines.concat(
-    { rex:/<dfn>(.*?)<\/dfn>/g, tmplt:function($0,$1){return Wiky.store("$"+Wiky.math.toWiki($1)+"$");} } // inline equation
-);
diff --git a/unmaintained/furnace-onigiri/templates/atom.furnace b/unmaintained/furnace-onigiri/templates/atom.furnace
deleted file mode 100644
index 88bb89a189..0000000000
--- a/unmaintained/furnace-onigiri/templates/atom.furnace
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom">
-    <% USING: io namespaces furnace:onigiri html
-    math kernel sequences hashtables calendar ; %>
-    <title><% "title" key>meta* meta-value [ "an onigiri weblog" ] unless* write %></title>
-    <link rel="self" href="<% base-url write "atom" action>url write %>"/>
-    <author>
-        <name><% "author" key>meta* meta-value [ "anonymous" ] unless* write %></name>
-    </author>
-    <id><% base-url write "atom" action>url write %></id>
-    <% entry get 
-    [ [ entry-created ] 2apply compare-timestamps neg ] sort
-    dup empty? [ %>
-    <updated><% dup first entry-created timestamp>rfc3339 write %></updated><% ] unless
-    [ %>
-    <entry>
-        <title><% dup entry-title write %></title>
-        <id><% dup entry-stub stub>url dup base-url write write %></id>
-        <updated><% over entry-created timestamp>rfc3339 write %></updated>
-        <link href="<% base-url write write %>"/>
-        <summary><% entry-body write-html %></summary>
-    </entry><% ] each %>
-</feed>
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/templates/entry-edit-plain.furnace b/unmaintained/furnace-onigiri/templates/entry-edit-plain.furnace
deleted file mode 100644
index 78df2ed5c6..0000000000
--- a/unmaintained/furnace-onigiri/templates/entry-edit-plain.furnace
+++ /dev/null
@@ -1,19 +0,0 @@
-<% USING: namespaces io kernel sequences furnace:onigiri html 
-furnace ; %>
-
-<p><% "stub" get [ "true" entry-edit ] curry "Edit with Wiky" render-link %></p>
-
-<form method="post" action="entry-update">
-    <% "stub" get [ %><input type="hidden" name="stub" value="<% "stub" get write %>"/><% ] when %>
-    <table><tr><td>Title:</td><td><input type="text" name="title" value="<% "title" get write %>"/></td></tr>
-    <tr><td>Body:</td><td><textarea id="body" rows="10" cols="60" name="body" onKeyUp="$('preview').innerHTML=$('body').value;"><% "body" get write %></textarea></td></tr>
-    <tr><td></td><td><input type="submit" name="post" value="<% "stub" get "update" "post" ? write %>"/>
-    
-    <% "stub" get [  [ entry-delete ] curry "Delete" render-link ] when* %>(preview below)</td></tr>
-    <tr><td></td><td><div id="preview"></div></td></tr>
-    </table>
-</form>
-
-<script>
-$('preview').innerHTML=$('body').value;
-</script>
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/templates/entry-edit.furnace b/unmaintained/furnace-onigiri/templates/entry-edit.furnace
deleted file mode 100644
index d112ac531d..0000000000
--- a/unmaintained/furnace-onigiri/templates/entry-edit.furnace
+++ /dev/null
@@ -1,34 +0,0 @@
-<% USING: namespaces io kernel sequences furnace:onigiri html 
-furnace ; %>
-
-<script type="text/javascript">
-function transformWiky() {
-  var wiky = $('wiky').value;
-  var html = Wiky.toHtml(wiky);
-  $('html').value = html;
-  $('preview').innerHTML = html;
-}
-function transformHtml() {
-  var html = $('preview').innerHTML;
-  var wiky = Wiky.toWiki(html);
-  $('wiky').value = wiky;
-  $('html').value = html;
-}
-</script>
-
-<p><% "stub" get [ f entry-edit ] curry "Edit in non-Wiky editor" render-link %></p>
-
-<form method="post" action="entry-update">
-    <% "stub" get [ %><input type="hidden" name="stub" value="<% "stub" get write %>"/><% ] when %>
-    <table><tr><td>Title:</td><td><input type="text" name="title" value="<% "title" get write %>"/></td></tr>
-    <tr><td>Body:</td><td><textarea id="wiky" rows="10" cols="60" name="wiky" onkeyup="transformWiky();"></textarea></td></tr>
-    <tr><td></td><td><input type="submit" name="post" value="<% "stub" get "update" "post" ? write %>"/>
-    
-    <% "stub" get [  [ entry-delete ] curry "Delete" render-link ] when* %> 
-    (preview below)</td></tr>
-    <tr><td></td><td><input id="html" type="hidden" name="body" value=""/><div id="preview"><% "body" get [ write-html ] when* %></div></td></tr>
-    </table>
-</form>
-<script type="text/javascript">
-transformHtml();  
-</script>
diff --git a/unmaintained/furnace-onigiri/templates/entry-show.furnace b/unmaintained/furnace-onigiri/templates/entry-show.furnace
deleted file mode 100644
index c4b172a4d5..0000000000
--- a/unmaintained/furnace-onigiri/templates/entry-show.furnace
+++ /dev/null
@@ -1,9 +0,0 @@
-<% USING: furnace:onigiri io namespaces math calendar html kernel furnace ; %>
-
-<div class="entry">
-<h2><a href="<% "entry-show" action>url write %>?stub=<% "stub" get write %>"><% "title" get write %></a></h2>
-
-<p>posted <% "created" get timestamp>string write %> <% "stub" get [ entry-edit ] curry "(edit)" render-link %></p>
-
-<% "body" get write-html %>
-</div>
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/templates/footer.furnace b/unmaintained/furnace-onigiri/templates/footer.furnace
deleted file mode 100644
index 8cd3f1dc9b..0000000000
--- a/unmaintained/furnace-onigiri/templates/footer.furnace
+++ /dev/null
@@ -1,16 +0,0 @@
-<% USING: io kernel namespaces hashtables furnace:onigiri ; %>
-
-<% "analytics" key>meta* meta-value [ %>
-
-<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
-</script>
-<script type="text/javascript">
-_uacct = "<% write %>";
-urchinTracker();
-</script>
-
-<% ] when* %>
-
-</div>
-</body>
-</html>
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/templates/header.furnace b/unmaintained/furnace-onigiri/templates/header.furnace
deleted file mode 100644
index 80c6342f8e..0000000000
--- a/unmaintained/furnace-onigiri/templates/header.furnace
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
-<head>
-    <% USING: namespaces io kernel hashtables furnace:onigiri furnace sequences ; %>
-    <title><% "model" get write %></title>
-    <link rel='stylesheet' type='text/css' href='/responder/onigiri-resources/<% css-path write %>'/>
-    <link rel='stylesheet' type='text/css' href='/responder/onigiri-resources/wiky/wiky.css'/>
-    <link rel='stylesheet' type='text/css' href='/responder/onigiri-resources/wiky/wiky.lang.css'/>
-    <link rel='stylesheet' type='text/css' href='/responder/onigiri-resources/wiky/wiky.math.css'/>
-    <script type='text/javascript' src='/responder/onigiri-resources/wiky/wiky.js'></script>
-    <script type='text/javascript' src='/responder/onigiri-resources/wiky/wiky.lang.js'></script>
-    <script type='text/javascript' src='/responder/onigiri-resources/wiky/wiky.math.js'></script>
-    <script type='text/javascript' src='/responder/resources/prototype.js'></script>
-</head>
-<body>
-
-<div id="header">
-    <h1><a href="<% "" action>url write %>"><% "title" key>meta* meta-value write %></a></h1>
-
-    <p>Proudly running on <a href="http://factorcode.org">Factor <% version write %></a></p>
-
-    <p><a href="http://validator.w3.org/check?uri=referer">Valid XHTML 1.0 Strict</a> | <a href="<% "atom" action>url write %>">Subscribe to <% "title" key>meta [ meta-value ] [ "this weblog" ] if* write %></a> | <% [ meta-list ] "Admin" render-link %> | <% [ f entry-edit ] "Post" render-link %></p>
-</div>
-
-<div id="container">
\ No newline at end of file
diff --git a/unmaintained/furnace-onigiri/templates/sitemap.furnace b/unmaintained/furnace-onigiri/templates/sitemap.furnace
deleted file mode 100644
index ee7d17372b..0000000000
--- a/unmaintained/furnace-onigiri/templates/sitemap.furnace
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-  <urlset xmlns="http://www.google.com/schemas/sitemap/0.84">
-    <% USING: namespaces furnace:onigiri sequences io ; %>
-    <url>
-      <loc><% base-url write "" action>url write %></loc>
-    </url>
-    <% entry get [ %>
-    <url>
-      <loc><% entry-stub base-url write stub>url write %></loc>
-    </url>
-    <% ] each %> 
-  </urlset>
\ No newline at end of file
diff --git a/extra/gap-buffer/authors.txt b/unmaintained/gap-buffer/authors.txt
similarity index 100%
rename from extra/gap-buffer/authors.txt
rename to unmaintained/gap-buffer/authors.txt
diff --git a/extra/gap-buffer/cursortree/authors.txt b/unmaintained/gap-buffer/cursortree/authors.txt
similarity index 100%
rename from extra/gap-buffer/cursortree/authors.txt
rename to unmaintained/gap-buffer/cursortree/authors.txt
diff --git a/extra/gap-buffer/cursortree/cursortree-tests.factor b/unmaintained/gap-buffer/cursortree/cursortree-tests.factor
similarity index 100%
rename from extra/gap-buffer/cursortree/cursortree-tests.factor
rename to unmaintained/gap-buffer/cursortree/cursortree-tests.factor
diff --git a/extra/gap-buffer/cursortree/cursortree.factor b/unmaintained/gap-buffer/cursortree/cursortree.factor
similarity index 95%
rename from extra/gap-buffer/cursortree/cursortree.factor
rename to unmaintained/gap-buffer/cursortree/cursortree.factor
index a3a5075820..4249aea2d9 100644
--- a/extra/gap-buffer/cursortree/cursortree.factor
+++ b/unmaintained/gap-buffer/cursortree/cursortree.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2007 Alex Chapman All Rights Reserved.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: assocs assocs.lib kernel gap-buffer generic trees trees.avl math
+USING: assocs kernel gap-buffer generic trees trees.avl math
 sequences quotations ;
 IN: gap-buffer.cursortree
 
@@ -21,7 +21,7 @@ TUPLE: right-cursor ;
 
 : cursor-index ( cursor -- i ) cursor-i ;
 
-: add-cursor ( cursortree cursor -- ) dup cursor-index rot insert-at ; 
+: add-cursor ( cursortree cursor -- ) dup cursor-index rot push-at ; 
 
 : remove-cursor ( cursortree cursor -- )
     tuck cursor-index swap cursortree-cursors at* [ delete ] [ 2drop ] if ;
diff --git a/extra/gap-buffer/cursortree/summary.txt b/unmaintained/gap-buffer/cursortree/summary.txt
similarity index 100%
rename from extra/gap-buffer/cursortree/summary.txt
rename to unmaintained/gap-buffer/cursortree/summary.txt
diff --git a/extra/gap-buffer/gap-buffer-tests.factor b/unmaintained/gap-buffer/gap-buffer-tests.factor
similarity index 100%
rename from extra/gap-buffer/gap-buffer-tests.factor
rename to unmaintained/gap-buffer/gap-buffer-tests.factor
diff --git a/extra/gap-buffer/gap-buffer.factor b/unmaintained/gap-buffer/gap-buffer.factor
similarity index 100%
rename from extra/gap-buffer/gap-buffer.factor
rename to unmaintained/gap-buffer/gap-buffer.factor
diff --git a/extra/gap-buffer/summary.txt b/unmaintained/gap-buffer/summary.txt
similarity index 100%
rename from extra/gap-buffer/summary.txt
rename to unmaintained/gap-buffer/summary.txt
diff --git a/extra/gap-buffer/tags.txt b/unmaintained/gap-buffer/tags.txt
similarity index 100%
rename from extra/gap-buffer/tags.txt
rename to unmaintained/gap-buffer/tags.txt
diff --git a/extra/windows/types/authors.txt b/unmaintained/headers/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/windows/types/authors.txt
rename to unmaintained/headers/authors.txt
diff --git a/extra/windows/user32/authors.txt b/unmaintained/headers/bsd/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/windows/user32/authors.txt
rename to unmaintained/headers/bsd/authors.txt
diff --git a/extra/io/sockets/headers/bsd/bsd.factor b/unmaintained/headers/bsd/bsd.factor
similarity index 100%
rename from extra/io/sockets/headers/bsd/bsd.factor
rename to unmaintained/headers/bsd/bsd.factor
diff --git a/extra/io/sockets/headers/headers.factor b/unmaintained/headers/headers.factor
similarity index 100%
rename from extra/io/sockets/headers/headers.factor
rename to unmaintained/headers/headers.factor
diff --git a/unmaintained/irc/irc-client.factor b/unmaintained/irc/irc-client.factor
deleted file mode 100644
index c3a0bb77a2..0000000000
--- a/unmaintained/irc/irc-client.factor
+++ /dev/null
@@ -1,264 +0,0 @@
-USING: arrays calendar concurrency errors generic hashtables
-help html http io kernel match math memory namespaces
-parser prettyprint quotations sequences sequences-contrib
-splay-trees strings threads words network ;
-IN: irc
-
-! "setup" objects
-TUPLE: profile server port nickname password default-channels ;
-TUPLE: channel-profile name password auto-rejoin ;
-
-! "live" objects
-TUPLE: irc-client profile nick stream stream-process controller-process ;
-TUPLE: nick name channels log ;
-TUPLE: channel name topic members log attributes ;
-
-! "irc message" objects
-  ! the delegate of all irc messages
-TUPLE: irc-message timestamp ;
-TUPLE: logged-in name text ;
-TUPLE: ping name ;
-TUPLE: join name channel ;
-TUPLE: part name channel text ;
-TUPLE: quit text ;
-
-TUPLE: privmsg name text ;
-TUPLE: kick channel er ee text ;
-TUPLE: roomlist channel names ;
-TUPLE: nick-in-use name ;
-TUPLE: notice type text ;
-TUPLE: mode name channel mode text ;
-! TUPLE: members
-
-TUPLE: unhandled text ;
-
-! "control message" objects
-TUPLE: command sender ;
-TUPLE: service predicate quot enabled? ;
-TUPLE: chat-command from to text ;
-TUPLE: join-command channel password ;
-TUPLE: part-command channel text ;
-
-SYMBOL: irc-client
-: irc-stream> ( -- stream ) irc-client get irc-client-stream ;
-: trim-: ( seq -- seq ) [ CHAR: : = ] ltrim* ;
-: parse-name ( string -- string )
-    trim-: "!" split first ;
-: irc-split ( string -- seq )
-    1 swap [ [ CHAR: : = ] find* ] keep
-    swap [ cut trim-: ] [ nip f ] if >r trim trim-:
-    " " split r> [ 1array append ] when* ;
-: me? ( name -- ? )
-    irc-client get irc-client-nick nick-name = ;
-
-: irc-write ( s -- )
-    irc-stream> stream-write ;
-
-: irc-print ( s -- )
-    irc-stream> [ stream-print ] keep stream-flush ;
-
-: nick ( nick -- )
-    "NICK " irc-write irc-print ;
-
-: login ( nick -- )
-    dup nick
-    "USER " irc-write irc-write
-    " hostname servername :irc.factor" irc-print ;
-
-: connect* ( server port -- )
-    <inet> <client> irc-client get set-irc-client-stream ;
-
-: connect ( server -- ) 6667 connect* ;
-
-: join ( channel password -- )
-    "JOIN " irc-write
-    [ >r " :" r> 3append ] when* irc-print ;
-
-: part ( channel text -- )
-    >r "PART " irc-write irc-write r>
-    " :" irc-write irc-print ;
-
-: say ( line nick -- )
-    "PRIVMSG " irc-write irc-write " :" irc-write irc-print ;
-
-: quit ( text -- )
-    "QUIT :" irc-write irc-print ;
-
-
-GENERIC: handle-irc ( obj -- )
-
-M: object handle-irc ( obj -- )
-    "Unhandled irc object" print drop ;
-
-M: logged-in handle-irc ( obj -- )
-    logged-in-name irc-client get [ irc-client-nick set-nick-name ] keep
-    
-    irc-client-profile profile-default-channels
-    [
-        [ channel-profile-name ] keep
-        channel-profile-password join
-    ] each ;
-
-M: ping handle-irc ( obj -- )
-    "PONG " irc-write
-    ping-name irc-print ;
-
-M: nick-in-use handle-irc ( obj -- )
-    nick-in-use-name "_" append nick ;
-
-: delegate-timestamp ( obj -- obj )
-    now <irc-message> over set-delegate ;
-
-MATCH-VARS: ?name ?name2 ?channel ?text ?mode ;
-SYMBOL: line
-: match-irc ( string -- )
-    dup line set
-    dup print flush
-    irc-split
-    {
-        { { "PING" ?name }
-          [ ?name <ping> ] }
-        { { ?name "001" ?name2 ?text }
-          [ ?name2 ?text <logged-in> ] }
-        { { ?name "433" _ ?name2 "Nickname is already in use." }
-          [ ?name2 <nick-in-use> ] }
-
-        { { ?name "JOIN" ?channel }
-          [ ?name ?channel <join> ] }
-        { { ?name "PART" ?channel ?text }
-          [ ?name ?channel ?text <part> ] }
-        { { ?name "PRIVMSG" ?channel ?text }
-          [ ?name ?channel ?text <privmsg> ] }
-        { { ?name "QUIT" ?text }
-          [ ?name ?text <quit> ] }
-
-        { { "NOTICE" ?name ?text }
-          [ ?name ?text <notice> ] }
-        { { ?name "MODE" ?channel ?mode ?text }
-          [ ?name ?channel ?mode ?text <mode> ] }
-        { { ?name "KICK" ?channel ?name2 ?text }
-          [  ?channel ?name ?name2 ?text <kick> ] }
-
-        ! { { ?name "353" ?name2 _ ?channel ?text }
-         ! [ ?text ?channel ?name2 make-member-list ] }
-        { _ [ line get <unhandled> ] }
-    } match-cond
-    delegate-timestamp handle-irc flush ;
-
-: irc-loop ( -- )
-    irc-stream> stream-readln
-    [ match-irc irc-loop ] when* ;
-
-: do-irc ( irc-client -- )
-    dup irc-client set
-    dup irc-client-profile profile-server
-    over irc-client-profile profile-port connect*
-    dup irc-client-profile profile-nickname login
-    [ irc-loop ] [ irc-stream> stream-close ] cleanup ;
-
-: with-infinite-loop ( quot timeout -- quot timeout )
-    "looping" print flush
-    over catch drop dup sleep with-infinite-loop ;
-
-: start-irc ( irc-client -- )
-    ! [ [ do-irc ] curry 3000 with-infinite-loop ] with-scope ;
-    [ do-irc ] curry 3000 with-infinite-loop ;
-
-
-GENERIC: handle-command ( obj -- )
-: prepare-message ( from text -- string )
-    >r dup [ >r "from " r> ": " 3append ] when r>
-    append >string ;
-
-M: chat-command handle-command ( obj -- )
-    [ chat-command-from ] keep
-    [ chat-command-text prepare-message ] keep
-    chat-command-to say ;
-
-M: join-command handle-command ( obj -- )
-    [ join-command-channel ] keep
-    join-command-password join ;
-
-M: part-command handle-command ( obj -- )
-    [ part-command-channel ] keep part-command-text part ;
-
-M: service handle-command ( service -- )    
-    drop ;
-
-: command-handler ( -- )
-    receive [ handle-command ] catch [
-        "error caught: " . flush
-    ] when* command-handler ;
-
-: send-command ( obj irc-client -- )
-    >r self <command> over set-delegate r>
-    irc-client-controller-process send ;
-
-: subscribe-logger ( irc-client -- )
-    >r "#concatenative-flood" "log" <service> r>
-    send-command ;
-
-! : start-private ( irc-client -- )
-    ! dup irc-client set [ start-irc ] spawn ;
-
-: maybe-start-node ( port -- )
-    \ localnode get [
-        drop
-    ] [
-        >r "localhost" r> start-node
-    ] if ;
-
-: start-public ( irc-client id -- )
-    [
-        >r
-            dup irc-client set
-            4030 maybe-start-node
-            [ command-handler ] spawn
-        r> over register-process
-        swap [ set-irc-client-controller-process ] keep
-        [ [ start-irc ] spawn ] keep set-irc-client-stream-process
-    ] with-scope ;
-
-! "trifocus.net" 4030 <node> "public-irc" <remote-process> "guest" "#concatenative" "hi" <chat-command> over send
-
-: make-test-client
-    "irc.freenode.org"
-        6667
-        "factorbot2"
-        f
-        [
-            "#concatenative-flood" f f <channel-profile> ,
-            ! "#concatenative-test1" f f <channel-profile> ,
-            ! "#concatenative-test2" f f <channel-profile> ,
-            ! "#concatenative" f f <channel-profile> ,
-        ] { } make <profile>
-    f V{ } clone V{ } clone <nick>
-    f
-    f
-    f
-    <irc-client> ;
-
-: test3 make-test-client "test3" start-public ;
-: test4 make-test-client "test4" start-public ;
-: test5 make-test-client "test5" start-public ;
-: test6 make-test-client "test6" start-public ;
-
-: 3test { test3 test4 test5 } [ execute ] each ;
-
-: make-furnacebot
-    "irc.freenode.org"
-        6667
-        "furnacebot"
-        f
-        [
-            "#concatenative" f f <channel-profile> ,
-        ] { } make <profile>
-    f V{ } clone V{ } clone <nick>
-    f
-    f
-    f
-    <irc-client> ;
-
-: furnacebot
-    make-furnacebot "public-irc" start-public ;
-
diff --git a/unmaintained/irc/load.factor b/unmaintained/irc/load.factor
deleted file mode 100644
index 4d90ac34e9..0000000000
--- a/unmaintained/irc/load.factor
+++ /dev/null
@@ -1,7 +0,0 @@
-REQUIRES: libs/concurrency apps/http-server libs/sequences
-libs/splay-trees ;
-
-PROVIDE: libs/irc
-{ +files+ {
-    "irc-client.factor"
-} } ;
diff --git a/unmaintained/isequences/authors.txt b/unmaintained/isequences/authors.txt
deleted file mode 100644
index bfc196ff8f..0000000000
--- a/unmaintained/isequences/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Robbert van Dalen
diff --git a/unmaintained/isequences/base/base.factor b/unmaintained/isequences/base/base.factor
deleted file mode 100644
index 18dadf5ae5..0000000000
--- a/unmaintained/isequences/base/base.factor
+++ /dev/null
@@ -1,586 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-
-IN: isequences.base
-USING: generic kernel math math.functions sequences
-isequences.interface shuffle ;        
-
-: index-error ( -- * )
-    "index out of bounds" throw ; foldable
-
-: traversal-error ( -- * )
-    "traversal error" throw ; foldable
-
-: to-sequence ( s -- s )
-    dup i-length 0 <
-    [ -- to-sequence reverse ]
-    [ dup [ swap i-at ] swap add* swap i-length swap map ]
-    if ; inline
-
-: neg? ( s -- ? ) i-length 0 < ; foldable
-    
-: is-atom? ( seq -- ? )
-    dup 0 i-at eq? ;
-
-: twice ( n -- n )
-    dup + ; inline
-
-: 2size ( s1 s2 -- s1 s2 size1 size2 )
-    2dup [ i-length ] 2apply ; inline
-
-: rindex ( s n -- s n )
-    swap dup i-length rot - ; inline
-
-: left-right ( s -- left right )
-    [ ileft ] keep iright ; inline
-
-: (i-at) ( s i -- v )
-    i-length swap dup ileft dup i-length roll 2dup <=
-    [ swap - rot iright swap ]
-    [ nip ]
-    if i-at nip ; inline
-
-: (ihead2) ( s i -- h )
-    swap dup ileft dup i-length roll 2dup =
-    [ 2drop nip ]
-    [ 2dup < [ swap - rot iright swap ihead ++ ] [ nip ihead nip ] if ]
-    if ; inline
-    
-: (ihead) ( s i -- h ) 
-    dup pick i-length = [ drop ] [ (ihead2) ] if ; inline
-    
-: (itail3) ( s i -- h )
-    swap left-right swap dup i-length roll 2dup =
-    [ 3drop ]
-    [ 2dup < [ swap - nip itail ] [ nip itail swap ++ ] if ]
-    if ; inline
-
-: (itail2) ( s sl i -- t )
-    tuck = [ 2drop 0 ] [ (itail3) ] if ; inline
-
-: (itail) ( s i -- t )
-    over i-length dup >r 1 = 
-    [ r> drop 1 = [ drop 0 ] when ] [ r> swap (itail2) ] if ;
-
-
-: PRIME1 ( -- prime1 ) HEX: 58ea12c9 ; foldable
-: PRIME2 ( -- prime2 ) HEX: 79af7bc3 ; foldable
-    
-: hh ( fixnum-h -- fixnum-h )
-    PRIME1 * PRIME2 + >fixnum ; inline
-
-: quick-hash ( fixnum-h1 fixnum-h2 -- fixnum-h )
-    [ hh ] 2apply bitxor hh ; inline
-
-: ($$) ( s -- hash )
-    left-right [ $$ ] 2apply quick-hash ; inline
-
-: (ig1) ( s1 s2 -- s )
-    >r left-right 2size <
-    [ dup >r ileft ipair r> iright r> ++ ipair ]
-    [ r> ++ ipair ] if ; inline
-
-: (ig2) ( s1 s2 -- s )
-    left-right 2size >
-    [ >r dup >r ileft ++ r> iright r> ipair ipair ]
-    [ >r ++ r> ipair ] if ; inline
-
-: (ig3) ( s1 s2 size1 size2 -- s )
-    2dup twice >=
-    [ 2drop (ig1) ]
-    [ swap twice >= [ (ig2) ] [ ipair ] if ] if ; inline
-
-: ++g++ ( s1 s2 -- s )
-    dup i-length dup zero? 
-    [ 2drop ]
-    [ pick i-length dup zero? [ 2drop nip ] [ swap (ig3) ] if ] if ; inline 
-
-: ++g+- ( s1 s2 -- s )
-    2size + dup 0 <
-    [ neg swap -- swap rindex itail -- nip ]
-    [ nip ihead ]
-    if ; inline
-
-: ++g-+ ( s1 s2 -- s )
-    2size + dup 0 <
-    [ nip swap -- swap neg ihead -- ]
-    [ rindex itail nip ]
-    if ; inline
-
-: ++g-- ( s1 s2 -- s )
-    -- swap -- swap ++ -- ; inline
-
-: ++g ( s1 s2 -- s )
-    2dup [ neg? ] 2apply
-    [ [ ++g-- ] [ ++g+- ] if ] [ [ ++g-+ ] [ ++g++ ] if ] if ;
-
-
-! #### lazy negative isequence ####
-!
-TUPLE: ineg sequence ;
-
-M: ineg -- ineg-sequence ;
-M: ineg i-length ineg-sequence i-length neg ;
-M: ineg i-at i-length dup 0 <= [ neg swap -- swap i-at ] [ index-error ] if ;
-M: ineg ileft -- iright -- ;
-M: ineg iright -- ileft -- ;
-M: ineg ihead [ -- ] 2apply ihead -- ;
-M: ineg itail [ -- ] 2apply itail -- ;
-M: ineg $$ ineg-sequence $$ neg ;
-
-TUPLE: irev sequence ;
-
-: <i-rev> 
-    dup i-length 1 > [ <irev> ] when ; inline
-
-M: irev i-at swap irev-sequence swap i-length over i-length - 1+ neg i-at ;
-M: irev i-length irev-sequence i-length ;
-M: irev ileft irev-sequence iright `` ;
-M: irev iright irev-sequence ileft `` ;
-M: irev ihead >r irev-sequence r> rindex itail `` ;  
-M: irev itail >r irev-sequence r> rindex ihead `` ;
-M: irev $$ irev-sequence neg hh ;
-
-M: irev descending? irev-sequence ascending? ;
-M: irev ascending? irev-sequence descending? ;
-
-M: object `` <i-rev> ;
-M: ineg `` -- `` -- ; 
-M: integer `` ;
-M: irev `` irev-sequence ;
-
-! #### composite isequence (size-balanced binary tree) ####
-!
-TUPLE: ibranch left right size ;
-
-: <isequence> ( s1 s2 -- s )
-    2size + <ibranch> ; inline
-
-M: ibranch i-length ibranch-size ;
-M: ibranch i-at (i-at) ;
-M: ibranch iright ibranch-right ;
-M: ibranch ileft ibranch-left ;
-M: ibranch ihead (ihead) ;
-M: ibranch itail (itail) ;
-M: ibranch $$ ($$) ;
-
-
-! #### object isequence ####
-!
-GENERIC: object/++ ( s1 s2 -- s )
-GENERIC: object/ipair ( s1 s2 -- s )
-
-M: object object/++ swap ++g ;
-M: object object/ipair swap <isequence> ;
-M: object ++ swap object/++ ;
-M: object ipair swap object/ipair ;
-
-M: object i-length drop 1 ;
-M: object -- <ineg> ;
-M: object i-at i-length zero? [ index-error ] unless ;
-M: object ileft drop 0 ;
-M: object iright drop 0 ;
-M: object ihead dup zero? [ 2drop 0 ] [ 1 = [ index-error ] unless ] if ;
-M: object itail dup zero? [ drop ] [ 1 = [ drop 0 ] [ index-error ] if ] if ;
-
-
-! #### single element isequence ####
-!
-TUPLE: ileaf value ;
-
-: <i> ( v -- s ) <ileaf> ; inline
-
-M: ileaf i-at i-length zero? [ ileaf-value ] [ index-error ] if ;
-M: ileaf $$ 0 i-at $$ ;
-
-
-! #### integer isequence ####
-!
-
-GENERIC: integer/++ ( s1 s2 -- v )
-M: object integer/++ object/++ ;
-M: integer ++ swap integer/++ ;
-
-GENERIC: integer/ipair ( s1 s2 -- s )
-M: object integer/ipair swap <isequence> ;
-M: integer ipair swap integer/ipair ;
-
-M: integer integer/++ + ;
-M: integer integer/ipair + ;
-
-M: integer i-length ;
-M: integer -- neg ;
-M: integer i-at i-length dup 0 >= [ > [ 0 ] [ index-error ] if ] [ index-error ] if ;
-M: integer ileft
-    dup zero? [ traversal-error ] [ 2/ ] if ;
-M: integer iright
-    dup zero? [ traversal-error ] [ 1+ 2/ ] if ;
-M: integer ihead swap drop ;
-M: integer itail - ;
-M: integer $$ >fixnum ;
-
-
-! #### negative integers ####
-!
-PREDICATE: integer ninteger 0 < ;
-
-M: ninteger i-at i-length dup 0 <= [ < [ 0 ] [ index-error ] if ] [ index-error ] if ;
-
-
-! #### sequence -> isequence ####
-!
-
-: chk-index dup zero? [ traversal-error ] [ 2/ ] if ; inline
-
-M: sequence i-length length ;
-M: sequence i-at i-length swap nth ;
-M: sequence ileft dup length chk-index head ;
-M: sequence iright dup length chk-index tail ;
-M: sequence ihead head ;
-M: sequence itail tail ;
-M: sequence $$ [ $$ ] map unclip [ quick-hash ] reduce ;
-
-
-! #### (natural) compare/ordering ####
-
-DEFER: (i-eq?)
-
-: (i-eq4?) ( s1 s2 -- ? )
-   2dup [ is-atom? ] 2apply
-   [ [ = ] [ 2drop f ] if ]
-   [ [ 2drop f ] [ [ 0 i-at ] 2apply (i-eq?) ] if ] if ;
-
-: (i-eq3?) ( s1 s2 -- ? )
-    dup ileft pick over i-length tuck ihead rot (i-eq?)
-    [ itail swap iright swap (i-eq?) ]
-    [ 3drop f ]
-    if ;
- 
-: (i-eq2?) ( s1 s2 sl -- ? )
-    dup zero? [ 3drop 0 ]
-    [ 1 = [ (i-eq4?) ] [ (i-eq3?) ] if ]
-    if ; inline
-
-: (i-eq?) ( s1 s2 -- ? )
-    2dup eq? [ 2drop t ]
-    [ 2dup [ i-length ] 2apply tuck = [ (i-eq2?) ] [ 3drop f ] if ]
-    if ; inline
-
-: (i-cmp5) ( s1 s2 -- i )
-    dup ileft pick over i-length tuck ihead rot i-cmp dup zero?
-    [ drop itail swap iright swap i-cmp ]
-    [ -roll 3drop ] if ; inline
-
-: (i-cmp4) ( s1 s2 s -- i )
-    dup zero? [ 3drop 0 ]
-    [ 1 = [ [ 0 i-at ] 2apply i-cmp ] [ (i-cmp5) ] if ]
-    if ; inline 
-
-: (i-cmp3) ( s1 s2 ls1 ls2 -- i )
-    2dup = [ drop (i-cmp4) ]
-    [ min dup >r ihead r> (i-cmp4) dup zero? [ drop -1 ] when ]
-    if ; inline
-
-: (i-cmp2) ( s1 s2 ls1 ls2 -- i )
-     2dup > [ swap 2swap swap 2swap (i-cmp2) neg ] [ (i-cmp3) ] if ; inline
-    
-: cmp-g++ ( s1 s2 -- i )
-      2dup (i-eq?) [ 2drop 0 ]
-      [ 2dup [ i-length ] 2apply (i-cmp2) ] if ; inline
-
-: cmp-g-- ( s1 s2 -- i )
-    [ -- ] 2apply swap cmp-g++ ; inline
-    
-: cmp-g+- ( s1 s2 -- i ) 2drop 1 ; inline
-
-: cmp-g-+ ( s1 s2 -- i ) 2drop -1 ; inline
-
-: cmp-gg ( s1 s2 -- i )
-  2dup [ neg? ] 2apply [ [ cmp-g-- ] [ cmp-g+- ] if ]
-  [ [ cmp-g-+ ] [ cmp-g++ ] if ] if ;
-
-
-GENERIC: object/i-cmp ( s2 s1 -- s )
-M: object object/i-cmp swap cmp-gg ;
-M: object i-cmp swap object/i-cmp ;
-
-: ifirst ( s1 -- v )
-    dup i-length 1 = [ 0 i-at ] [ ileft ifirst ] if ; inline
-
-: ilast ( s1 -- v )
-    dup i-length 1 = [ 0 i-at ] [ iright ilast ] if ; inline
-
-: (ascending2?) ( s1 s2 -- ? )
-    ifirst swap ilast i-cmp 0 >= ;
-
-: (ascending?) ( s -- ? )
-    dup i-length 1 <=
-    [ drop t ]
-    [ left-right 2dup [ ascending? ] both? [ (ascending2?) ] [ 2drop f ] if ]
-    if ;
-
-: (descending2?) ( s1 s2 -- ? )
-    ifirst swap ilast i-cmp 0 <= ;
-
-: (descending?) ( s -- ? )
-    dup i-length 1 <=
-    [ drop t ]
-    [ left-right 2dup [ descending? ] both? [ (descending2?) ] [ 2drop f ] if ]
-    if ;
-
-M: object ascending? (ascending?) ;
-M: object descending? (descending?) ;
-M: integer ascending? drop t ;
-M: integer descending? drop t ;
-
-
-! **** dual-sided isequences ****
-!
-
-TUPLE: iturned sequence ;
-TUPLE: iright-sided value ;
-TUPLE: idual-sided left right ;
-
-M: iturned i-length iturned-sequence i-length ;
-M: iturned i-at >r iturned-sequence r> i-at :v: ;
-M: iturned ileft iturned-sequence ileft <iturned> ;
-M: iturned iright iturned-sequence iright <iturned> ;
-M: iturned ihead >r iturned-sequence r> ihead <iturned> ;
-M: iturned itail >r iturned-sequence r> itail <iturned> ;
-M: iturned $$ iturned-sequence dup -- [ $$ ] 2apply quick-hash ;
-
-: <i-right-sided> ( v -- lv )
-    dup i-length zero? [ drop 0 ] [ <iright-sided> ] if ; inline
-
-: <i-dual-sided> ( v1 v2 -- dv )
-    2dup [ i-length ] 2apply zero?
-    [ zero? [ 2drop 0 ] [ drop ] if ]
-    [ zero? [ nip <i-right-sided> ] [ <idual-sided> ] if ]
-    if ; 
-
-: i-cmp-left-right ( s1 s2 -- i )
-    2dup [ left-side ] 2apply i-cmp dup zero?
-    [ drop [ right-side ] 2apply i-cmp ]
-    [ -rot 2drop ]
-    if ; inline
-    
-: ::g ( s -- s ) 
-    dup i-length 0 < [ -- <iturned> -- ] [ <iturned> ] if ; inline
-
-M: object :: ::g ;
-M: iturned :: iturned-sequence ;
-M: integer :: ;
-
-GENERIC: iright-sided/i-cmp ( s1 s2 -- i )
-GENERIC: idual-sided/i-cmp ( s1 s2 -- i )
-
-M: object iright-sided/i-cmp swap i-cmp-left-right ;
-M: object idual-sided/i-cmp swap i-cmp-left-right ;
-M: iright-sided object/i-cmp swap i-cmp-left-right ;
-M: idual-sided object/i-cmp swap i-cmp-left-right ;
-M: iright-sided i-cmp swap iright-sided/i-cmp ;
-M: idual-sided i-cmp swap idual-sided/i-cmp ;
-
-
-M: object left-side ;
-M: object right-side drop 0 ;
-M: iright-sided left-side drop 0 ;
-M: iright-sided right-side iright-sided-value ;
-M: idual-sided left-side idual-sided-left ;
-M: idual-sided right-side idual-sided-right ;
-M: object :v: <i-right-sided> ;
-M: idual-sided :v: dup idual-sided-right swap idual-sided-left <i-dual-sided> ;
-M: iright-sided :v: iright-sided-value ;
-
-: dual++ ( v2 v1 -- v ) swap 0 <i-dual-sided> ++ ; inline
-
-M: iright-sided object/++ iright-sided-value swap <i-dual-sided> ;
-M: idual-sided object/++ dual++ ;
-M: iright-sided integer/++ iright-sided-value swap <i-dual-sided> ;
-M: idual-sided integer/++ dual++ ;
-
-GENERIC: iright-sided/++ ( s1 s2 -- s )
-GENERIC: idual-sided/++ ( s1 s2 -- s )
-
-M: iright-sided idual-sided/++
-    swap dup idual-sided-left swap idual-sided-right
-    rot iright-sided-value ++ <i-dual-sided> ;
-
-M: iright-sided iright-sided/++
-    swap [ iright-sided-value ] 2apply ++ <i-right-sided> ;
-
-M: idual-sided iright-sided/++
-    dup idual-sided-left swap idual-sided-right
-    rot iright-sided-value swap ++ <i-dual-sided> ;
-    
-M: idual-sided idual-sided/++
-        swap 2dup [ idual-sided-left ] 2apply ++
-        >r [ idual-sided-right ] 2apply ++ r> <i-dual-sided> ;
-
-M: iright-sided ++ swap iright-sided/++ ;
-M: idual-sided ++ swap idual-sided/++ ;
-
-M: object iright-sided/++
-    >r iright-sided-value r> swap <i-dual-sided> ;
-M: object idual-sided/++
-    >r dup idual-sided-left swap idual-sided-right r> ++ <i-dual-sided> ;
-
-
-! **** lazy left product of an isequence ****
-!
-
-TUPLE: imul sequence multiplier ;
-
-: <i-muls> ( seq mul -- imul ) <imul> ; foldable
-
-: *_g++ ( s n -- s ) i-length dup zero? [ nip ] [ <i-muls> ] if ; inline
-
-: *_g+- ( s n -- s ) -- *_ ; inline
-
-: *_g-+ ( s n -- s ) swap -- swap *_ -- ; inline
-
-: *_g-- ( s n -- s ) [ -- ] 2apply *_ ; inline
-    
-
-: imul-unpack ( imul -- m s )
-    dup imul-multiplier swap imul-sequence ; inline
-
-: imul-ileft ( imul -- imul )
-    imul-unpack dup i-length 1 =
-    [ swap ileft *_ ] 
-    [ ileft swap *_ ]
-    if ; inline
-
-: imul-iright ( imul -- imul )
-    imul-unpack dup i-length 1 =
-    [ swap iright *_ ]
-    [ iright swap *_ ]
-    if ; inline 
-    
-: check-bounds ( s i -- s i )
-    2dup swap i-length >= [ index-error ] when ; inline
-
-: imul-i-at ( imul i -- v  )
-    i-length check-bounds swap dup imul-multiplier swap imul-sequence
-    -rot /i i-at ; inline
-
-: *_g ( s n -- s )
-    2dup [ neg? ] 2apply [ [ *_g-- ] [ *_g+- ] if ]
-    [ [ *_g-+ ] [ *_g++ ] if ] if ; inline
-
-M: object *_ *_g ;
-
-M: integer *_ i-length abs * ;
-M: imul i-at imul-i-at ;
-M: imul i-length imul-unpack i-length swap * ;
-M: imul ileft imul-ileft ;
-M: imul iright imul-iright ;
-M: imul ihead (ihead) ;
-M: imul itail (itail) ;
-M: imul $$ imul-unpack [ $$ 2/ ] 2apply quick-hash ;
-
-M: imul ascending? imul-sequence ascending? ;
-M: imul descending? imul-sequence descending? ;
-    
-
-! **** sort, union, intersect and diff ****
-!
-
-DEFER: (ifind2)
-
-: (ifind3) ( s1 v s e -- i )
-    2dup >r >r + 2/ pick swap i-at over i-cmp 0 <
-    [ r> r> swap over + 1+ 2/ swap (ifind2) ]
-    [ r> r> over + 2/ (ifind2) ]
-    if ; inline
-
-: (ifind2) ( s1 v s e -- i )
-    2dup = [ -roll 3drop ] [ (ifind3) ] if ; inline
-
-: ifind ( s1 v -- i )
-    over i-length 0 swap (ifind2) ; inline
-
-: icontains? ( s1 v -- ? )
-    2dup ifind pick i-length dupd <
-    [ rot swap i-at i-cmp zero? ] [ 3drop f ] if ; inline
-
-: icut ( s v -- s2 s2 )
-     dupd ifind 2dup ihead -rot itail ; inline
-
-DEFER: (union)
-    
-: (union6) ( s1 s2 -- s )
-    2dup [ 0 i-at ] 2apply i-cmp 0 >
-    [ swap ] when ++ ; inline
-    
-: (union5) ( s1 s2 -- s )
-    over ileft i-length pick swap i-at icut rot left-right
-    swap roll (union) -rot swap (union) ++ ;
-
-: (union4) ( s1 s2 -- s )
-    2dup ifirst swap ilast i-cmp 0 >= [ ++ ] [ (union5) ] if ; inline
-    
-: (union3) ( s1 s2 ls1 ls2 -- s )
-    1 = 
-    [ 1 = [ (union6) ] [ (union4) ] if ]
-    [ 1 = [ swap ] when (union4) ] if ; inline
-
-: (union2) ( s1 s2 -- s )
-    2dup [ i-length ] 2apply 2dup zero?
-    [ 3drop drop ] [ zero? [ 2drop nip ] [ (union3) ] if ] if ; inline
-    
-: (union) ( s1 s2 -- s )
-    2dup eq? [ drop 2 *_ ] [ (union2) ] if ; inline
-
-DEFER: i-sort
-
-: (i-sort) ( s -- s )
-    dup i-length 1 >
-    [ left-right [ i-sort ] 2apply (union) ]
-    when ; inline
-
-DEFER: (diff)
-
-: (diff7) ( s1 s2 -- s )
-    dupd swap 0 i-at icontains? [ drop 0 ] when ; inline
-
-: (diff6) ( s1 s2 -- s )
-    2dup [ 0 i-at ] 2apply i-cmp zero?
-    [ 2drop 0 ] [ drop ] if ; inline
-
-: (diff5) ( s1 s2 -- s )
-    over ileft i-length pick swap i-at icut rot left-right
-    swap roll (diff) -rot swap (diff) ++ ; inline
-
-: (diff4) ( s1 s2 -- s )
-    2dup [ i-length ] 2apply 1 =
-    [ 1 = [ (diff6) ] [ (diff5) ] if ]
-    [ 1 = [ (diff7) ] [ (diff5) ] if ] if ; inline
-    
-: (diff3) ( s1 s2 -- s )
-    2dup ifirst swap ilast i-cmp 0 >
-    [ drop ] [ (diff4) ] if ; inline
-
-: (diff2) ( s1 s2 -- s )
-    2dup [ i-length zero? ] either?
-    [ drop ] [ (diff3) ] if ; inline
-    
-: (diff) ( s1 s2 -- s )
-    2dup eq? [ 2drop 0 ] [ (diff2) ] if ; inline
-
-
-! **** sort, diff, union and intersect assumes positive isequences ****
-
-: i-sort ( s -- s )
-    dup ascending? [ dup descending? [ `` ] [ (i-sort) ] if ] unless ;
-
-: i-diff ( s1 s2 -- s )
-   [ i-sort ] 2apply (diff) ; inline
-
-: i-union ( s1 s2 -- s )
-    [ i-sort ] 2apply (union) ; inline
-
-: i-intersect ( s1 s2 -- s )
-    [ i-sort ] 2apply over -rot i-diff i-diff ;
-
diff --git a/unmaintained/isequences/interface/interface-docs.factor b/unmaintained/isequences/interface/interface-docs.factor
deleted file mode 100644
index 3fe43342a2..0000000000
--- a/unmaintained/isequences/interface/interface-docs.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-USING: help.markup help.syntax isequences.interface ;
-
-HELP: i-at 
-{ $values { "s" "an isequence" } { "n" "an isequence" } { "v" "the element at the " { $snippet "n" } "th index" } }
-{ $contract "Outputs the element at position" { $snippet "n" } "of the isequence." } ;
-
-HELP: --
-{ $values { "s" "an isequence" } { "-s" "a negated isequence" } }
-{ $contract "Outputs the negated version of " { $snippet "s"} " with its length and indices negated." } ;
-
-HELP: i-length
-{ $values { "s" "an isequence" } { "n" "an integer length" } }
-{ $contract "Outputs the length of " { $snippet "s" } " which can be negative for a negated isequence." } ;
-
-HELP: ++
-{ $values { "s1" "an isequence" } { "s2" "an isequence" } { "s" "the concatenated result of " { $snippet "s1" } " and " { $snippet "s2" } } }
-{ $contract "Outputs the freshly concatened isequence with length = length(s1) + length(s2)." } ;
diff --git a/unmaintained/isequences/interface/interface.factor b/unmaintained/isequences/interface/interface.factor
deleted file mode 100644
index 4d09bcfece..0000000000
--- a/unmaintained/isequences/interface/interface.factor
+++ /dev/null
@@ -1,110 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.interface
-USING: generic kernel ;  
-
-! Unifies sequences, integers and objects, following Enchilada semantics.
-! Efficiency is achieved through lazy immutable size-balanced binary trees. 
-
-! - An object is an isequence of size 1 containing itself
-! - An integer is an isequence of size itself containing zeros
-! - If a sequence is never modified it is also considered an isequence
-! - An isequence can have negative sign
-
-
-GENERIC: -- ( s -- -s )                         ! monadic negate
-GENERIC: $$ ( s1 -- h )                         ! monadic hash
-GENERIC: ++ ( s1 s2 -- s )                      ! dyadic concatenate  
-
-GENERIC: i-length ( s -- n )                    ! monadic size
-GENERIC: i-cmp ( s1 s2 -- n )                   ! dyadic compare
-GENERIC# i-at 1 ( s n -- v ) 		         	! dyadic index
-
-GENERIC# ihead 1 ( s n -- s ) 		           	! dyadic head of a cut
-GENERIC# itail 1 ( s n -- s ) 		        	! dyadic tail of a cut
-
-GENERIC: ileft ( s -- v )                       ! balanced left side
-GENERIC: iright ( s -- v )                      ! balanced right side
-GENERIC: ipair ( s1 s2 -- s )                   ! pairing two isequences
-
-GENERIC: ascending? ( s -- ? )                  ! monadic ascending query
-GENERIC: descending? ( s -- ? )                 ! monadic descending query    
-
-GENERIC: left-side ( v -- v )
-GENERIC: right-side ( v -- v )
-GENERIC: left-side-empty? ( s -- ? )
-GENERIC: right-side-empty? ( s -- ? )
-GENERIC: :v: ( v -- v )
-
-
-! **** lazy turn of an isequence 
-!
-GENERIC: :: ( s -- ts )
-
-! **** lazy reversal of an isequence
-!
-GENERIC: `` ( s -- rs )
-
-! **** lazy right division of an isequence
-!
-GENERIC: _/ ( n s -- n/s )
-
-! **** lazy left division of an isequence ****
-!
-GENERIC: /_ ( s1 n -- s1/n )
-
-! **** full division of two isequences ****
-!
-: // ( s1 s2 -- n1/s2 s1/n2 ) 2dup /_ -rot _/ ; inline
-
-! **** matching two isequences ****
-!
-GENERIC: >> ( s1 s2 -- s1/s2 )
-
-! **** iota ****
-!
-GENERIC: ~~ ( s -- s )
-
-! **** lazy maximum of two isequences
-!
-GENERIC: || ( s1 s2 -- max-s1-s2 )
-
-! **** lazy minimum of two isequences ****
-!
-GENERIC: && ( s1 s2 -- min-s1-s2 )
-
-! **** strict modulus of two isequences ****
-!
-GENERIC: %% ( s1 s2 -- ms1 ms2 )
-
-! **** strict right product of an isequence ****
-!
-GENERIC: _* ( m s -- m*s )
-
-! **** lazy left product of an isequence ****
-!
-GENERIC# *_ 1 ( s m -- s*m )
-
-! **** full product of two isequences ****
-!
-: ** ( s1 s2 -- ms1 ms2 ) 2dup *_ -rot _* ; inline
-
-! **** lazy left union ****
-!
-GENERIC: <_ ( n s -- n/s )
-
-! **** lazy right diff ****
-!
-GENERIC: _< ( n s -- n/s )
-
-! **** lazy union and diff of two isequences ****
-!
-: << ( s1 s2 -- u-s1-s2 d-s1-s2 ) 2dup <_ -rot _< ; inline
-
-! **** lazy wiped isequence ****
-!
-GENERIC: ## ( s -- ws )
-
-
-
diff --git a/unmaintained/isequences/isequences-tests.factor b/unmaintained/isequences/isequences-tests.factor
deleted file mode 100644
index b594a48954..0000000000
--- a/unmaintained/isequences/isequences-tests.factor
+++ /dev/null
@@ -1,47 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-USING: kernel sequences isequences.interface isequences.base isequences.ops tools.test strings ;
-IN: temporary
-
-! strict isequences (++)
-!
-{ 4 } [ 4 i-length ] unit-test
-{ 4 } [ { 1 2 3 4 } i-length ] unit-test
-{ -4 } [ 4 -- i-length ] unit-test
-{ -4 } [ { 1 2 3 4 } -- i-length ] unit-test
-
-{ 4 } [ { 1 2 3 } { 4 5 6 } ++ 3 i-at ] unit-test
-{ { 3 2 1 } } [ { 1 2 3 } -- to-sequence ] unit-test
-{ 0 } [ 100 30 i-at ] unit-test
-{ 2 } [ { 1 2 3 4 } 1 i-at ] unit-test
-{ 2 } [ { 1 2 3 4 } -- -1 i-at ] unit-test
-
-{ 6 } [ 10 4 -- ++ ] unit-test 
-{ { 1 2 3 4 5 6 } }  [ { 1 2 3 } { 4 5 6 } ++ to-sequence ] unit-test
-{ { 1 2 3 0 0 0 } }  [ { 1 2 3 } 3 ++ to-sequence ] unit-test
-{ { 0 1 2 3 4 5 6 7 8 9 } }  [ 10 [ <i> ] map unclip [ ++ ] reduce to-sequence ] unit-test
-{ { 0 1 2 3 } }  [ { 0 1 2 3 4 5 } 2 -- ++ to-sequence ] unit-test 
-{ { 3 2 1 } } [ { 1 2 3 4 5 } -- 2 ++ to-sequence ] unit-test
-{ { 0 1 2 3 } } [ { 0 1 2 3 4 5 6 } [ 7 8 9 ] -- ++ to-sequence ] unit-test
-{ { 6 5 4 3 2 1 } } [ { 1 2 3 } -- { 4 5 6 } -- ++ to-sequence ] unit-test
-{ { 0 1 } }  [ 100000 [ <i> ] map unclip [ ++ ] reduce -99998 ++ to-sequence ] unit-test
-{ { } } [ { 1 2 3 } { 4 5 6 } -- ++ to-sequence ] unit-test
-
-
-! (Lazy) Enchilada operators ( ** || `` ~~ :: // ## )
-!
-{ { 3 2 1 } } [ { 1 2 3 } `` to-sequence ] unit-test
-{ { 1 2 3 } } [ { 1 2 3 } `` -- to-sequence ] unit-test
-{ { 1 1 2 2 3 3 } { 4 5 4 5 4 5 } } [ { 1 2 3 } { 4 5 } ** [ to-sequence ] 2apply ] unit-test
-{ { 3 3 2 2 1 1 } { 4 5 4 5 4 5 } } [ { 1 2 3 } -- { 4 5 } ** [ to-sequence ] 2apply ] unit-test
-{ { { 1 3 } { 2 4 } } } [ { { 1 } { 2 } } { { 3 } { 4 } } || to-sequence [ to-sequence ] map ] unit-test
-{ { { 1 4 } { 2 3 } } } [ { { 1 } { 2 } } { { 3 } { 4 } } -- || to-sequence [ to-sequence ] map ] unit-test
-
-
-{ 0 } [ 2 ~~ -2 4 ~~ ++ :: || dup ## :: swap :: ## :: swap ++ to-sequence 4 ~~ i-cmp ] unit-test
-{ { { 1 4 } { 2 5 } { 3 } } } [ { { 1 } { 2 } { 3 } } { { 4 } { 5 } } || to-sequence [ to-sequence ] map ] unit-test
-{ 0 } [ 4 ~~ to-sequence 4 [ <i> <i> ] map unclip [ ++ ] reduce i-cmp ] unit-test
-{ { 1 1 1 1 2 2 2 3 3 4 } { 1 1 } }  [ { 1 1 2 1 } { 2 3 2 4 3 1 } << [ to-sequence ] 2apply ] unit-test
-
-{ { 0 1 2 "a" 3 4 5 "b" 6 7 8 "c" 9 10 11 "d" } } [ { 0 1 2 3 4 5 6 7 8 9 10 11 } 3 swap ** nip 3 // drop { "a" "b" "c" "d" } ++ 4 swap ** nip 4 // drop to-sequence ] unit-test
diff --git a/unmaintained/isequences/isequences.factor b/unmaintained/isequences/isequences.factor
deleted file mode 100644
index 2343021444..0000000000
--- a/unmaintained/isequences/isequences.factor
+++ /dev/null
@@ -1,7 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences
-USING: generic kernel isequences.interface isequences.interface isequences.ops ;  
-
-
diff --git a/unmaintained/isequences/ops/cache/cache.factor b/unmaintained/isequences/ops/cache/cache.factor
deleted file mode 100644
index 5286170590..0000000000
--- a/unmaintained/isequences/ops/cache/cache.factor
+++ /dev/null
@@ -1,45 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.cache
-USING: generic kernel math sequences isequences.base isequences.interface ;
-
-! ** An isequence that caches lazy values of its delegate isequence **
-
-GENERIC: CC ( s -- cached-s )
-
-TUPLE: icache left right size hash ;
-
-: <i-cache> ( s -- cs )
-    ! only cache isequences with size > 16
-    dup i-length 16 > [ f f f f <icache> tuck set-delegate ] when ; inline
-    
-: cached-length ( s -- n )
-    dup icache-size dup not
-    [ drop dup delegate i-length tuck swap set-icache-size ]
-    [ nip ] if ; inline
-: cached-ileft ( s -- s ) 
-    dup icache-left dup not
-    [ drop dup delegate ileft CC tuck swap set-icache-left ]
-    [ nip ] if ; inline
-: cached-iright ( s -- s )
-    dup icache-right dup not
-    [ drop dup delegate iright CC tuck swap set-icache-right ]
-    [ nip ] if ; inline
-: cached-$$ ( s -- hash ) 
-    dup icache-hash dup not
-    [ drop dup delegate $$ tuck swap set-icache-hash ]
-    [ nip ] if ; inline
-
-M: object CC <i-cache> ;
-M: integer CC ;
-M: icache CC ;
-
-M: icache i-at (i-at) ;
-M: icache i-length cached-length ;
-M: icache ileft cached-ileft ;
-M: icache iright cached-iright ;
-M: icache ihead (ihead) ;
-M: icache itail (itail) ;
-M: icache $$ ($$) ;
-
diff --git a/unmaintained/isequences/ops/divide/divide.factor b/unmaintained/isequences/ops/divide/divide.factor
deleted file mode 100644
index bd3b109cbc..0000000000
--- a/unmaintained/isequences/ops/divide/divide.factor
+++ /dev/null
@@ -1,94 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.divide
-USING: generic kernel math math.functions sequences isequences.interface isequences.base ;
-
-
-TUPLE: idiv sequence div offset size ;
-
-: n-cut ( seq pos -- seq )
-    2dup ihead -rot itail <isequence> ; inline
-    
-: n-div ( seq div -- seq )
-    swap dup i-length 2/ dup roll mod - n-cut ; inline
-
-: <i-div> ( sequence div offset size -- idiv )
-    pick 1 = 
-    [ 3drop ] [ >r >r tuck n-div swap r> r> <idiv> ] if ; inline
-
-: idiv-unpack ( idiv -- sequence div offset size )
-    dup idiv-sequence swap dup idiv-div swap dup idiv-offset swap idiv-size ; inline
-    
-: (idiv-offset) ( pos idiv -- offset-pos )
-    tuck dup idiv-offset swap idiv-div
-    dup * -rot + * swap idiv-size 2dup
-    mod neg rot + swap /i ; inline
-
-: (idiv-index) ( pos idiv -- index )
-    idiv-div * ; inline
-
-: idiv-nth ( idiv pos -- v )
-    swap tuck 2dup (idiv-index) -rot (idiv-offset)
-    + swap idiv-sequence swap i-at ; inline
-
-: idiv-ileft ( idiv -- idiv )
-    dup idiv-sequence ileft swap dup idiv-div
-    pick i-length swap tuck = 
-    [ drop nip 0 i-at <i> ]
-    [ swap dup idiv-offset swap idiv-size <i-div> ]
-    if ;
-
-: (idiv-newoffset) ( idiv -- newoff )
-    dup ileft i-length swap idiv-offset + ;
-
-: idiv-iright ( idiv -- idiv )
-    dup idiv-sequence iright swap dup idiv-div
-    pick i-length swap tuck =
-    [ drop nip dup ileft i-length i-at <i> ]
-    [ swap dup (idiv-newoffset) swap idiv-size <i-div> ]
-    if ; inline 
-   
-M: idiv i-length dup idiv-sequence i-length swap idiv-div /i ;
-M: idiv i-at idiv-nth ;
-M: idiv ileft idiv-ileft ;
-M: idiv iright idiv-iright ;
-M: idiv ihead (ihead) ;
-M: idiv itail (itail) ;
-M: idiv $$
-    idiv-unpack [ $$ ] 2apply quick-hash -rot [ $$ ]
-    2apply [ quick-hash ] 2apply ;
-
-: gcd_0 ( n1 n2 -- n )
-    dup zero? [ 2drop 1 ] [ gcd ] if ; inline
-    
-: /_g++ ( s1 n -- idiv )
-    i-length over i-length tuck gcd_0 0 rot <i-div> ; inline
-
-: /_g+- ( s n -- s ) -- /_ ; inline
-
-: /_g-+ ( s n -- s ) swap -- `` swap /_ -- `` ; inline
-
-: /_g-- ( s n -- s ) [ -- ] 2apply /_ ; inline
-
-: /_g ( s1 s2 -- s )
-    2dup [ neg? ] 2apply [ [ /_g-- ] [ /_g+- ] if ] [ [ /_g-+ ] [ /_g++ ] if ] if ; inline
- 
-M: object /_ /_g ;
-
-
-: _/g++ ( n s -- s )
-    dup i-length dup roll i-length gcd_0 tuck /i tuck roll _* rot /_ swap /_ ;
-
-: _/g+- ( n s -- s ) -- `` _/ `` -- ; inline
-
-: _/g-+ ( n s -- s ) swap -- swap _/ ; inline
-
-: _/g-- ( n s -- s ) [ -- ] 2apply _/ ; inline
-
-: _/g ( n s -- s )
-    2dup [ neg? ] 2apply [ [ _/g-- ] [ _/g+- ] if ]
-    [ [ _/g-+ ] [ _/g++ ] if ] if ; inline
-
-M: object _/ _/g ;
-
diff --git a/unmaintained/isequences/ops/iota/iota.factor b/unmaintained/isequences/ops/iota/iota.factor
deleted file mode 100644
index 76ba0e3990..0000000000
--- a/unmaintained/isequences/ops/iota/iota.factor
+++ /dev/null
@@ -1,53 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.iota
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-
-! **** positive iota ****
-!
-
-TUPLE: p-iota offset size ;
-
-: <ip-iota> ( offset size -- p-iota ) 
-    dup zero? [ nip ] [ dup 1 = [ drop <i> <i> ] [ <p-iota> ] if ] if ; inline
-
-M: p-iota i-length p-iota-size ;
-M: p-iota i-at swap p-iota-offset + <i> ;
-M: p-iota ileft dup i-length 2/ >r p-iota-offset r> <ip-iota> ;
-M: p-iota iright dup i-length 1 + 2/ >r dup p-iota-offset swap ileft i-length + r> <ip-iota> ;
-M: p-iota ihead (ihead) ;
-M: p-iota itail (itail) ;
-M: p-iota $$ dup p-iota-offset swap p-iota-size [ $$ ] 2apply quick-hash ;
-M: p-iota ascending? drop t ;
-M: p-iota descending? drop f ;
-
-
-! **** negative iota ****
-!
-TUPLE: n-iota offset size ;
-
-: <in-iota> ( offset size -- n-iota ) 
-    dup zero? [ nip ] [ dup 1 = [ drop <i> <i> ] [ <n-iota> ] if ] if ; inline
-
-M: n-iota i-length n-iota-size ;
-M: n-iota i-at swap n-iota-offset + neg -1 + <i> ;
-M: n-iota ileft dup i-length 2/ >r n-iota-offset r> <in-iota> ;
-M: n-iota iright dup i-length 1 + 2/ >r dup n-iota-offset swap ileft i-length + r> <in-iota> ;
-M: n-iota ihead (ihead) ;
-M: n-iota itail (itail) ;
-M: n-iota $$ dup n-iota-offset swap n-iota-size [ $$ -- ] 2apply quick-hash ;
-M: n-iota ascending? drop f ;
-M: n-iota descending? drop t ; 
-
-M: object ~~
-    0 over i-length dup 0 <
-    [ -- <in-iota> -- swap -- ## -- || ]
-    [ <ip-iota> swap ## || ]
-    if ;
-M: integer ~~
-    0 over 0 < [ swap -- <in-iota> -- ] [ swap <ip-iota> ] if ;
-M: p-iota ~~ i-length ~~ ;
-M: n-iota ~~ i-length ~~ ;
diff --git a/unmaintained/isequences/ops/match/match.factor b/unmaintained/isequences/ops/match/match.factor
deleted file mode 100644
index aa4f6a1528..0000000000
--- a/unmaintained/isequences/ops/match/match.factor
+++ /dev/null
@@ -1,90 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.match
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-TUPLE: imatch sorted-s1 s2 ;
-
-DEFER: ifind-c
-
-: <i-match> ( s1 s2 -- imatch )
-    dup i-length dup zero? [ 3drop 0 ]
-    [ 1 = [ swap i-sort swap 0 i-at ifind-c <i> ] [ swap i-sort swap <imatch> ] if ] if ; inline 
-
-: imatch-unpack ( imatch -- sorted-s1 s2 )
-    dup imatch-sorted-s1 swap imatch-s2 ; inline 
-
-DEFER: (ifind2-left-m)
-
-: (ifind3-left-m) ( s1 v s e -- i )
-    2dup >r >r + 2/ pick swap i-at left-side over i-cmp 0 <=
-    [ r> r> swap over + 1+ 2/ swap (ifind2-left-m) ]
-    [ r> r> over + 2/ (ifind2-left-m) ]
-    if ; inline
-
-: (ifind2-left-m) ( s1 v s e -- i )
-    2dup = [ -roll 3drop ] [ (ifind3-left-m) ] if ; inline
-
-: ifind-left-m ( s1 v -- i )
-    over i-length 0 swap (ifind2-left-m) ; inline
-
-DEFER: (ifind2-left)
-
-: (ifind3-left) ( s1 v s e -- i )
-    2dup >r >r + 2/ pick swap i-at left-side over i-cmp 0 <
-    [ r> r> swap over + 1+ 2/ swap (ifind2-left) ]
-    [ r> r> over + 2/ (ifind2-left) ]
-    if ; inline
-
-: (ifind2-left) ( s1 v s e -- i )
-    2dup = [ -roll 3drop ] [ (ifind3-left) ] if ; inline
-
-: ifind-left ( s1 v -- i )
-    over i-length 0 swap (ifind2-left) ; inline
-
-: icontains-left? ( s1 v -- ? )
-    2dup ifind-left pick i-length dupd <
-    [ rot swap i-at left-side i-cmp zero? ] [ 3drop f ] if ; inline
-
-: (ifind-s2) ( s1 v -- sv )
-    2dup ifind-left rot swap itail dup rot ifind-left-m ihead ## :: ; inline
-    
-: ifind-s ( s1 v -- sv )
-    2dup icontains-left?
-    [ (ifind-s2) ] [ 2drop 0 ] if ; inline
-
-: iflatten ( s -- s )
-    dup i-length dup zero?
-    [ 2drop 0 ]
-    [ 1 = [ 0 i-at left-side ] [ left-right [ iflatten ] 2apply ++ ] if ] if ; inline
-    
-: ifind-c ( s1 v -- s )
-    ifind-s iflatten ; inline
-
-: >>g++ ( s1 s2 -- imatch )
-    <i-match> ; inline
-    
-: >>g-+ ( s1 s2 -- imatch )
-    swap -- swap >>g++ ; inline
-
-: >>g+- ( s1 s2 -- imatch )
-    -- >>g++ -- ;
-
-: >>g-- ( s1 s2 -- imatch )
-    [ -- ] 2apply >>g++ -- ; inline
-
-: >>g ( s1 s2 -- imatch )
-    2dup [ neg? ] 2apply [ [ >>g-- ] [ >>g+- ] if ]
-    [ [ >>g-+ ] [ >>g++ ] if ] if ; inline
-
-M: object >> >>g ;
-    
-M: imatch i-length imatch-s2 i-length ;
-M: imatch i-at swap imatch-unpack rot i-at tuck left-side ifind-c swap right-side <i-dual-sided> ;
-M: imatch ileft imatch-unpack ileft <i-match> ;
-M: imatch iright imatch-unpack iright <i-match> ;
-M: imatch ihead (ihead) ;
-M: imatch itail (itail) ;
-M: imatch $$ imatch-unpack [ $$ ] 2apply quick-hash ;
diff --git a/unmaintained/isequences/ops/maximum/maximum.factor b/unmaintained/isequences/ops/maximum/maximum.factor
deleted file mode 100644
index e9ce1c6153..0000000000
--- a/unmaintained/isequences/ops/maximum/maximum.factor
+++ /dev/null
@@ -1,71 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.maximum
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-
-TUPLE: imax left right ;
-
-: imax-unpack ( imax -- left right )
-    dup imax-left swap imax-right ; inline
-
-: nmax ( s n -- s )
-    i-length over i-length - dup 0 <= [ drop ] [ ++ ] if ; inline
-
-: <i-max> ( s1 s2 -- imax )
-    dup i-length pick swap nmax -rot swap nmax <imax> ; inline
-    
-: min## ( s1 s2 -- minimum )
-    [ i-length ] 2apply min ; inline
-    
-: ||g++ ( s1 s2 -- imax )
-    2dup [ i-length ] 2apply zero? [ 2drop ] [ zero? [ nip ] [ <i-max> ] if ] if ; inline
-
-: ||g-+ ( s1 s2 -- imax )
-    swap -- `` swap 2dup min## -rot || swap ihead ; inline
-
-: ||g+- ( s1 s2 -- imax )
-   -- `` 2dup min## -rot || swap ihead ; inline
-
-: ||g-- ( s1 s2 -- imax )
-    [ -- `` ] 2apply 2dup min## -rot || swap ihead `` -- ; inline
-
-: mcut-point ( imax -- i )
-    imax-unpack [ ileft i-length ] 2apply 2dup < [ drop ] [ nip ] if ; inline
-    
-: imax-ileft ( imax -- imax ) 
-    dup i-length 1 =
-    [ drop 0 ]
-    [ dup mcut-point swap imax-unpack pick ihead -rot swap ihead swap || ]
-    if ; inline
-
-: imax-iright ( imax -- imax )
-    dup i-length 1 =
-    [ drop 0 ]
-    [ dup mcut-point swap imax-unpack pick itail -rot swap itail swap || ]
-    if ; inline
-
-
-: ||g ( s1 s2 -- s )
-    2dup [ neg? ] 2apply [ [ ||g-- ] [ ||g+- ] if ]
-    [ [ ||g-+ ] [ ||g++ ] if ] if ; inline
-
-M: object || ||g ;
-
-! double dispatch integer/||
-GENERIC: integer/|| ( s1 s2 -- v )
-M: object integer/|| swap ||g ;
-M: integer || swap integer/|| ;
-! integer optimization
-M: integer integer/|| max ;
-
-M: imax i-at swap imax-unpack pick i-at -rot swap i-at swap ++ ;
-M: imax i-length imax-left i-length ;
-M: imax ileft imax-ileft ;
-M: imax iright imax-iright ;
-M: imax ihead (ihead) ;
-M: imax itail (itail) ;
-M: imax $$ imax-unpack [ $$ -2 shift ] 2apply quick-hash ;
-
diff --git a/unmaintained/isequences/ops/minimum/minimum.factor b/unmaintained/isequences/ops/minimum/minimum.factor
deleted file mode 100644
index 6ac9d422a2..0000000000
--- a/unmaintained/isequences/ops/minimum/minimum.factor
+++ /dev/null
@@ -1,60 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.minimum
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-TUPLE: imin left right ;
-
-: <i-min> ( left right -- imin )
-    2dup [ i-length ] 2apply min dup rot
-    swap ihead -rot ihead swap <imin> ; inline
-    
-: imin-unpack ( imin -- left right )
-    dup imin-left swap imin-right ; inline
-    
-: imin-v ( v1 v2 -- v )
-    2dup [ left-side ] 2apply i-cmp dup zero?
-    [ drop [ right-side ] 2apply 2dup i-cmp 0 < [ 2drop 0 ] [ nip :v: ] if ]
-    [ 0 < [ 2drop 0 ] [ drop ] if ]
-    if ; inline
-
-: imin-ileft ( imin -- imin )
-    imin-unpack ileft dup i-length rot swap ihead swap <i-min> ; inline
-
-: imin-iright ( imin -- imin )
-    imin-unpack dup ileft i-length rot swap itail swap iright <i-min> ; inline
-    
-: &&g++ ( s1 s2 -- imax )
-    <i-min> ; inline
-
-: &&g-+ ( s1 s2 -- imax )
-    swap -- `` swap 2dup [ i-length ] 2apply neg + ++ && `` -- ; inline
-
-: &&g+- ( s1 s2 -- imax )
-    -- `` 2dup -roll [ i-length ] 2apply neg + ++ swap && `` -- ; inline
-
-: &&g-- ( s1 s2 -- imax )
-    [ -- `` ] 2apply 2dup [ i-length ] 2apply roll || -rot || && `` -- ; inline
-    
-: &&g ( s1 s2 -- imin )
-    2dup [ neg? ] 2apply [ [ &&g-- ] [ &&g+- ] if ]
-    [ [ &&g-+ ] [ &&g++ ] if ] if ; inline
-
-M: object && &&g ;
-
-M: imin i-length imin-left i-length ;
-M: imin i-at swap imin-unpack swap pick i-at -rot swap i-at imin-v ;
-M: imin ileft imin-ileft ;
-M: imin iright imin-iright ;
-M: imin ihead (ihead) ;
-M: imin itail (itail) ;
-M: imin $$ imin-unpack [ -- $$ neg ] 2apply quick-hash neg ;
-
-! double dispatch integer/&&
-GENERIC: integer/&& ( s1 s2 -- v )
-M: object integer/&& swap &&g ;
-M: integer && swap integer/&& ;
-! integer optimization
-M: integer integer/&& min ;
diff --git a/unmaintained/isequences/ops/modulus/modulus.factor b/unmaintained/isequences/ops/modulus/modulus.factor
deleted file mode 100644
index 4d91930031..0000000000
--- a/unmaintained/isequences/ops/modulus/modulus.factor
+++ /dev/null
@@ -1,26 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.modulus
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-: %%g++ ( s1 s2 -- ms1 ms2 )
-    2dup [ i-length ] 2apply 2dup [ 0 = ] 2apply or
-    [ 3drop drop 0 0 ]
-    [ 2dup mod -rot swap mod swap rot swap ihead >r ihead r> ] if ;
-
-: %%g-+ ( s1 s2 -- ms1 ms2 )
-    ;
-
-: %%g+- ( s1 s2 -- ms2 ms2 )
-    ;
-
-: %%g-- ( s1 s2 -- ms1 ms2 )
-    ;
-    
-: %%g ( s1 s2 --  ms1 ms2 )
-    2dup [ neg? ] 2apply [ [ %%g-- ] [ %%g+- ] if ]
-    [ [ %%g-+ ] [ %%g++ ] if ] if ; inline
-
-M: object %% %%g ;
diff --git a/unmaintained/isequences/ops/multiply/multiply.factor b/unmaintained/isequences/ops/multiply/multiply.factor
deleted file mode 100644
index 4a4ff4fa31..0000000000
--- a/unmaintained/isequences/ops/multiply/multiply.factor
+++ /dev/null
@@ -1,26 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.multiply
-USING: generic kernel math math.functions sequences
-isequences.interface isequences.base ;
-
-: _*g++ ( n s -- s )
-    swap i-length dup zero?
-    [ 2drop 0 ]
-    [ dup odd? [ over ] [ 0 ] if -rot 2/ swap _*g++ dup ++ ++ ]
-    if ;
-
-: _*g+- ( n s -- s ) -- _* -- ; inline
-
-: _*g-+ ( n s -- s ) swap -- swap _* ; inline
-
-: _*g-- ( n s -- s ) [ -- ] 2apply _* ; inline
-
-: _*g ( n s -- s )
-    2dup [ neg? ] 2apply [ [ _*g-- ] [ _*g+- ] if ]
-    [ [ _*g-+ ] [ _*g++ ] if ] if ; inline
-
-M: object _* _*g ;
-M: integer _* swap i-length abs * ;
-
diff --git a/unmaintained/isequences/ops/ops.factor b/unmaintained/isequences/ops/ops.factor
deleted file mode 100644
index bc8f7d439e..0000000000
--- a/unmaintained/isequences/ops/ops.factor
+++ /dev/null
@@ -1,5 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops
-USING: isequences.ops.cache isequences.ops.divide isequences.ops.iota isequences.ops.match isequences.ops.maximum isequences.ops.minimum isequences.ops.modulus isequences.ops.multiply isequences.ops.sort isequences.ops.wipe ;
diff --git a/unmaintained/isequences/ops/sort/sort.factor b/unmaintained/isequences/ops/sort/sort.factor
deleted file mode 100644
index 32773ca217..0000000000
--- a/unmaintained/isequences/ops/sort/sort.factor
+++ /dev/null
@@ -1,36 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.sort
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-: <_g++ ( n s -- s )
-    i-union ; inline
-
-: <_g+- ( n s -- s ) -- <_ ; inline
-
-: <_g-+ ( n s -- s ) swap -- swap <_ ; inline
-
-: <_g-- ( n s -- s ) [ -- ] 2apply <_ ; inline
-
-: <_g ( n s -- s )
-    2dup [ neg? ] 2apply [ [ <_g-- ] [ <_g+- ] if ]
-    [ [ <_g-+ ] [ <_g++ ] if ] if ; inline
-
-M: object <_ <_g ;
-
-: _<g++ ( n s -- s )
-    i-diff ; inline
-
-: _<g+- ( n s -- s ) -- _< ; inline
-
-: _<g-+ ( n s -- s ) swap -- swap _< ; inline
-
-: _<g-- ( n s -- s ) [ -- ] 2apply _< ; inline
-
-: _<g ( n s -- s )
-    2dup [ neg? ] 2apply [ [ _<g-- ] [ _<g+- ] if ]
-    [ [ _<g-+ ] [ _<g++ ] if ] if ; inline
-
-M: object _< _<g ;
diff --git a/unmaintained/isequences/ops/wipe/wipe.factor b/unmaintained/isequences/ops/wipe/wipe.factor
deleted file mode 100644
index 61eef67636..0000000000
--- a/unmaintained/isequences/ops/wipe/wipe.factor
+++ /dev/null
@@ -1,26 +0,0 @@
-! Copyright (C) 2007 Robbert van Dalen.
-! See http://factorcode.org/license.txt for BSD license.
-
-IN: isequences.ops.wipe
-USING: generic kernel math sequences isequences.interface isequences.base ;
-
-
-TUPLE: iwiped sequence ;
-
-: <i-wiped> ( s -- iwiped ) 
-    dup i-length zero? [ drop 0 ] [ <iwiped> ] if ; inline
-
-M: iwiped i-length iwiped-sequence i-length ;
-M: iwiped i-at >r iwiped-sequence r> i-at right-side <i-right-sided> ;
-M: iwiped ileft iwiped-sequence ileft <iwiped> ;
-M: iwiped iright iwiped-sequence iright <iwiped> ;
-M: iwiped ihead (ihead) ;
-M: iwiped itail (itail) ;
-M: iwiped $$ iwiped-sequence $$ dup quick-hash ;
-
-M: object ## 
-    dup i-length 0 < [ -- <i-wiped> -- ] [ <i-wiped> ] if ;
-M: integer ## ;
-M: ineg ## -- ## -- ;
-M: irev ## `` ## `` ;
-M: iwiped ## ;
diff --git a/unmaintained/isequences/summary.txt b/unmaintained/isequences/summary.txt
deleted file mode 100644
index efabd378bf..0000000000
--- a/unmaintained/isequences/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Immutable sequences
diff --git a/extra/jamshred/authors.txt b/unmaintained/jamshred/authors.txt
similarity index 100%
rename from extra/jamshred/authors.txt
rename to unmaintained/jamshred/authors.txt
diff --git a/extra/jamshred/deploy.factor b/unmaintained/jamshred/deploy.factor
similarity index 100%
rename from extra/jamshred/deploy.factor
rename to unmaintained/jamshred/deploy.factor
diff --git a/extra/jamshred/game/authors.txt b/unmaintained/jamshred/game/authors.txt
similarity index 100%
rename from extra/jamshred/game/authors.txt
rename to unmaintained/jamshred/game/authors.txt
diff --git a/extra/jamshred/game/game.factor b/unmaintained/jamshred/game/game.factor
similarity index 100%
rename from extra/jamshred/game/game.factor
rename to unmaintained/jamshred/game/game.factor
diff --git a/extra/jamshred/gl/authors.txt b/unmaintained/jamshred/gl/authors.txt
similarity index 100%
rename from extra/jamshred/gl/authors.txt
rename to unmaintained/jamshred/gl/authors.txt
diff --git a/extra/jamshred/gl/gl.factor b/unmaintained/jamshred/gl/gl.factor
similarity index 93%
rename from extra/jamshred/gl/gl.factor
rename to unmaintained/jamshred/gl/gl.factor
index 4171c79a0a..52caaa10c9 100644
--- a/extra/jamshred/gl/gl.factor
+++ b/unmaintained/jamshred/gl/gl.factor
@@ -1,6 +1,9 @@
 ! Copyright (C) 2007 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors alien.c-types colors jamshred.game jamshred.oint jamshred.player jamshred.tunnel kernel math math.constants math.functions math.vectors opengl opengl.gl opengl.glu sequences ;
+USING: accessors alien.c-types colors jamshred.game
+jamshred.oint jamshred.player jamshred.tunnel kernel math
+math.constants math.functions math.vectors opengl opengl.gl
+opengl.glu sequences float-arrays ;
 IN: jamshred.gl
 
 : min-vertices 6 ; inline
diff --git a/extra/jamshred/jamshred.factor b/unmaintained/jamshred/jamshred.factor
similarity index 93%
rename from extra/jamshred/jamshred.factor
rename to unmaintained/jamshred/jamshred.factor
index b7764894d1..d9a0f84b53 100755
--- a/extra/jamshred/jamshred.factor
+++ b/unmaintained/jamshred/jamshred.factor
@@ -1,6 +1,9 @@
 ! Copyright (C) 2007, 2008 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors alarms arrays calendar jamshred.game jamshred.gl jamshred.player jamshred.log kernel math math.constants namespaces sequences threads ui ui.backend ui.gadgets ui.gadgets.worlds ui.gestures ui.render math.vectors ;
+USING: accessors alarms arrays calendar jamshred.game jamshred.gl
+jamshred.player jamshred.log kernel math math.constants namespaces
+sequences threads ui ui.backend ui.gadgets ui.gadgets.worlds
+ui.gestures ui.render math.vectors math.geometry.rect ;
 IN: jamshred
 
 TUPLE: jamshred-gadget jamshred last-hand-loc alarm ;
diff --git a/extra/jamshred/log/log.factor b/unmaintained/jamshred/log/log.factor
similarity index 100%
rename from extra/jamshred/log/log.factor
rename to unmaintained/jamshred/log/log.factor
diff --git a/extra/jamshred/oint/authors.txt b/unmaintained/jamshred/oint/authors.txt
similarity index 100%
rename from extra/jamshred/oint/authors.txt
rename to unmaintained/jamshred/oint/authors.txt
diff --git a/extra/jamshred/oint/oint-tests.factor b/unmaintained/jamshred/oint/oint-tests.factor
similarity index 100%
rename from extra/jamshred/oint/oint-tests.factor
rename to unmaintained/jamshred/oint/oint-tests.factor
diff --git a/extra/jamshred/oint/oint.factor b/unmaintained/jamshred/oint/oint.factor
similarity index 100%
rename from extra/jamshred/oint/oint.factor
rename to unmaintained/jamshred/oint/oint.factor
diff --git a/extra/jamshred/player/authors.txt b/unmaintained/jamshred/player/authors.txt
similarity index 100%
rename from extra/jamshred/player/authors.txt
rename to unmaintained/jamshred/player/authors.txt
diff --git a/extra/jamshred/player/player.factor b/unmaintained/jamshred/player/player.factor
similarity index 94%
rename from extra/jamshred/player/player.factor
rename to unmaintained/jamshred/player/player.factor
index c40729e35b..48ea847db1 100644
--- a/extra/jamshred/player/player.factor
+++ b/unmaintained/jamshred/player/player.factor
@@ -1,7 +1,9 @@
 ! Copyright (C) 2007, 2008 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors colors combinators jamshred.log jamshred.oint jamshred.sound jamshred.tunnel kernel locals math math.constants math.order math.ranges math.vectors math.matrices shuffle sequences system ;
-USE: tools.walker
+USING: accessors colors combinators jamshred.log jamshred.oint
+jamshred.sound jamshred.tunnel kernel locals math math.constants
+math.order math.ranges math.vectors math.matrices shuffle
+sequences system float-arrays ;
 IN: jamshred.player
 
 TUPLE: player < oint name sounds tunnel nearest-segment last-move speed ;
diff --git a/extra/jamshred/sound/bang.wav b/unmaintained/jamshred/sound/bang.wav
similarity index 100%
rename from extra/jamshred/sound/bang.wav
rename to unmaintained/jamshred/sound/bang.wav
diff --git a/extra/jamshred/sound/sound.factor b/unmaintained/jamshred/sound/sound.factor
similarity index 100%
rename from extra/jamshred/sound/sound.factor
rename to unmaintained/jamshred/sound/sound.factor
diff --git a/extra/jamshred/summary.txt b/unmaintained/jamshred/summary.txt
similarity index 100%
rename from extra/jamshred/summary.txt
rename to unmaintained/jamshred/summary.txt
diff --git a/extra/jamshred/tags.txt b/unmaintained/jamshred/tags.txt
similarity index 100%
rename from extra/jamshred/tags.txt
rename to unmaintained/jamshred/tags.txt
diff --git a/extra/jamshred/tunnel/authors.txt b/unmaintained/jamshred/tunnel/authors.txt
similarity index 100%
rename from extra/jamshred/tunnel/authors.txt
rename to unmaintained/jamshred/tunnel/authors.txt
diff --git a/extra/jamshred/tunnel/tunnel-tests.factor b/unmaintained/jamshred/tunnel/tunnel-tests.factor
similarity index 98%
rename from extra/jamshred/tunnel/tunnel-tests.factor
rename to unmaintained/jamshred/tunnel/tunnel-tests.factor
index 722609851a..97077bdd67 100644
--- a/extra/jamshred/tunnel/tunnel-tests.factor
+++ b/unmaintained/jamshred/tunnel/tunnel-tests.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2007 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays jamshred.oint jamshred.tunnel kernel math.vectors sequences tools.test ;
+USING: arrays jamshred.oint jamshred.tunnel kernel math.vectors sequences tools.test float-arrays ;
 IN: jamshred.tunnel.tests
 
 [ 0 ] [ T{ segment f { 0 0 0 } f f f 0 }
diff --git a/extra/jamshred/tunnel/tunnel.factor b/unmaintained/jamshred/tunnel/tunnel.factor
similarity index 100%
rename from extra/jamshred/tunnel/tunnel.factor
rename to unmaintained/jamshred/tunnel/tunnel.factor
diff --git a/unmaintained/jni/jni-internals.factor b/unmaintained/jni/jni-internals.factor
new file mode 100644
index 0000000000..49bc57b108
--- /dev/null
+++ b/unmaintained/jni/jni-internals.factor
@@ -0,0 +1,357 @@
+! Copyright (C) 2006 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+IN: jni-internals
+USING: kernel alien arrays sequences ;
+
+LIBRARY: jvm
+
+TYPEDEF: int jint
+TYPEDEF: uchar jboolean
+TYPEDEF: void* JNIEnv
+
+C-STRUCT: jdk-init-args
+	{ "jint" "version" }
+	{ "void*" "properties" }
+	{ "jint" "check-source" }
+	{ "jint" "native-stack-size" }
+	{ "jint" "java-stack-size" }
+	{ "jint" "min-heap-size" }
+	{ "jint" "max-heap-size" }
+	{ "jint" "verify-mode" }
+	{ "char*" "classpath" }
+	{ "void*" "vprintf" }
+	{ "void*" "exit" }
+	{ "void*" "abort" }
+	{ "jint" "enable-class-gc" }
+	{ "jint" "enable-verbose-gc" }
+	{ "jint" "disable-async-gc" }
+	{ "jint" "verbose" }
+	{ "jboolean" "debugging" }
+	{ "jint" "debug-port" } ;
+
+C-STRUCT: JNIInvokeInterface
+	{ "void*" "reserved0" }
+	{ "void*" "reserved1" }
+	{ "void*" "reserved2" }
+	{ "void*" "DestroyJavaVM" }
+	{ "void*" "AttachCurrentThread" }
+	{ "void*" "DetachCurrentThread" }
+	{ "void*" "GetEnv" }
+	{ "void*" "AttachCurrentThreadAsDaemon" } ;
+
+C-STRUCT: JavaVM
+	{ "JNIInvokeInterface*" "functions" } ;
+
+C-STRUCT: JNINativeInterface
+    { "void*" "reserved0" }
+    { "void*" "reserved1" }
+    { "void*" "reserved2" }
+    { "void*" "reserved3" }
+    { "void*" "GetVersion" }
+    { "void*" "DefineClass" }
+    { "void*" "FindClass" }
+    { "void*" "FromReflectedMethod" }
+    { "void*" "FromReflectedField" }
+    { "void*" "ToReflectedMethod" }
+    { "void*" "GetSuperclass" }
+    { "void*" "IsAssignableFrom" }
+    { "void*" "ToReflectedField" }
+    { "void*" "Throw" }
+    { "void*" "ThrowNew" }
+    { "void*" "ExceptionOccurred" }
+    { "void*" "ExceptionDescribe" }
+    { "void*" "ExceptionClear" }
+    { "void*" "FatalError" }
+    { "void*" "PushLocalFrame" }
+    { "void*" "PopLocalFrame" }
+    { "void*" "NewGlobalRef" }
+    { "void*" "DeleteGlobalRef" }
+    { "void*" "DeleteLocalRef" }
+    { "void*" "IsSameObject" }
+    { "void*" "NewLocalRef" }
+    { "void*" "EnsureLocalCapacity" }
+    { "void*" "AllocObject" }
+    { "void*" "NewObject" }
+    { "void*" "NewObjectV" }
+    { "void*" "NewObjectA" }
+    { "void*" "GetObjectClass" }
+    { "void*" "IsInstanceOf" }
+    { "void*" "GetMethodID" }
+    { "void*" "CallObjectMethod" }
+    { "void*" "CallObjectMethodV" }
+    { "void*" "CallObjectMethodA" }
+    { "void*" "CallBooleanMethod" }
+    { "void*" "CallBooleanMethodV" }
+    { "void*" "CallBooleanMethodA" }
+    { "void*" "CallByteMethod" }
+    { "void*" "CallByteMethodV" }
+    { "void*" "CallByteMethodA" }
+    { "void*" "CallCharMethod" }
+    { "void*" "CallCharMethodV" }
+    { "void*" "CallCharMethodA" }
+    { "void*" "CallShortMethod" }
+    { "void*" "CallShortMethodV" }
+    { "void*" "CallShortMethodA" }
+    { "void*" "CallIntMethod" }
+    { "void*" "CallIntMethodV" }
+    { "void*" "CallIntMethodA" }
+    { "void*" "CallLongMethod" }
+    { "void*" "CallLongMethodV" }
+    { "void*" "CallLongMethodA" }
+    { "void*" "CallFloatMethod" }
+    { "void*" "CallFloatMethodV" }
+    { "void*" "CallFloatMethodA" }
+    { "void*" "CallDoubleMethod" }
+    { "void*" "CallDoubleMethodV" }
+    { "void*" "CallDoubleMethodA" }
+    { "void*" "CallVoidMethod" }
+    { "void*" "CallVoidMethodV" }
+    { "void*" "CallVoidMethodA" }
+    { "void*" "CallNonvirtualObjectMethod" }
+    { "void*" "CallNonvirtualObjectMethodV" }
+    { "void*" "CallNonvirtualObjectMethodA" }
+    { "void*" "CallNonvirtualBooleanMethod" }
+    { "void*" "CallNonvirtualBooleanMethodV" }
+    { "void*" "CallNonvirtualBooleanMethodA" }
+    { "void*" "CallNonvirtualByteMethod" }
+    { "void*" "CallNonvirtualByteMethodV" }
+    { "void*" "CallNonvirtualByteMethodA" }
+    { "void*" "CallNonvirtualCharMethod" }
+    { "void*" "CallNonvirtualCharMethodV" }
+    { "void*" "CallNonvirtualCharMethodA" }
+    { "void*" "CallNonvirtualShortMethod" }
+    { "void*" "CallNonvirtualShortMethodV" }
+    { "void*" "CallNonvirtualShortMethodA" }
+    { "void*" "CallNonvirtualIntMethod" }
+    { "void*" "CallNonvirtualIntMethodV" }
+    { "void*" "CallNonvirtualIntMethodA" }
+    { "void*" "CallNonvirtualLongMethod" }
+    { "void*" "CallNonvirtualLongMethodV" }
+    { "void*" "CallNonvirtualLongMethodA" }
+    { "void*" "CallNonvirtualFloatMethod" }
+    { "void*" "CallNonvirtualFloatMethodV" }
+    { "void*" "CallNonvirtualFloatMethodA" }
+    { "void*" "CallNonvirtualDoubleMethod" }
+    { "void*" "CallNonvirtualDoubleMethodV" }
+    { "void*" "CallNonvirtualDoubleMethodA" }
+    { "void*" "CallNonvirtualVoidMethod" }
+    { "void*" "CallNonvirtualVoidMethodV" }
+    { "void*" "CallNonvirtualVoidMethodA" }
+    { "void*" "GetFieldID" }
+    { "void*" "GetObjectField" }
+    { "void*" "GetBooleanField" }
+    { "void*" "GetByteField" }
+    { "void*" "GetCharField" }
+    { "void*" "GetShortField" }
+    { "void*" "GetIntField" }
+    { "void*" "GetLongField" }
+    { "void*" "GetFloatField" }
+    { "void*" "GetDoubleField" }
+    { "void*" "SetObjectField" }
+    { "void*" "SetBooleanField" }
+    { "void*" "SetByteField" }
+    { "void*" "SetCharField" }
+    { "void*" "SetShortField" }
+    { "void*" "SetIntField" }
+    { "void*" "SetLongField" }
+    { "void*" "SetFloatField" }
+    { "void*" "SetDoubleField" }
+    { "void*" "GetStaticMethodID" }
+    { "void*" "CallStaticObjectMethod" }
+    { "void*" "CallStaticObjectMethodV" }
+    { "void*" "CallStaticObjectMethodA" }
+    { "void*" "CallStaticBooleanMethod" }
+    { "void*" "CallStaticBooleanMethodV" }
+    { "void*" "CallStaticBooleanMethodA" }
+    { "void*" "CallStaticByteMethod" }
+    { "void*" "CallStaticByteMethodV" }
+    { "void*" "CallStaticByteMethodA" }
+    { "void*" "CallStaticCharMethod" }
+    { "void*" "CallStaticCharMethodV" }
+    { "void*" "CallStaticCharMethodA" }
+    { "void*" "CallStaticShortMethod" }
+    { "void*" "CallStaticShortMethodV" }
+    { "void*" "CallStaticShortMethodA" }
+    { "void*" "CallStaticIntMethod" }
+    { "void*" "CallStaticIntMethodV" }
+    { "void*" "CallStaticIntMethodA" }
+    { "void*" "CallStaticLongMethod" }
+    { "void*" "CallStaticLongMethodV" }
+    { "void*" "CallStaticLongMethodA" }
+    { "void*" "CallStaticFloatMethod" }
+    { "void*" "CallStaticFloatMethodV" }
+    { "void*" "CallStaticFloatMethodA" }
+    { "void*" "CallStaticDoubleMethod" }
+    { "void*" "CallStaticDoubleMethodV" }
+    { "void*" "CallStaticDoubleMethodA" }
+    { "void*" "CallStaticVoidMethod" }
+    { "void*" "CallStaticVoidMethodV" }
+    { "void*" "CallStaticVoidMethodA" }
+    { "void*" "GetStaticFieldID" }
+    { "void*" "GetStaticObjectField" }
+    { "void*" "GetStaticBooleanField" }
+    { "void*" "GetStaticByteField" }
+    { "void*" "GetStaticCharField" }
+    { "void*" "GetStaticShortField" }
+    { "void*" "GetStaticIntField" }
+    { "void*" "GetStaticLongField" }
+    { "void*" "GetStaticFloatField" }
+    { "void*" "GetStaticDoubleField" }
+    { "void*" "SetStaticObjectField" }
+    { "void*" "SetStaticBooleanField" }
+    { "void*" "SetStaticByteField" }
+    { "void*" "SetStaticCharField" }
+    { "void*" "SetStaticShortField" }
+    { "void*" "SetStaticIntField" }
+    { "void*" "SetStaticLongField" }
+    { "void*" "SetStaticFloatField" }
+    { "void*" "SetStaticDoubleField" }
+    { "void*" "NewString" }
+    { "void*" "GetStringLength" }
+    { "void*" "GetStringChars" }
+    { "void*" "ReleaseStringChars" }
+    { "void*" "NewStringUTF" }
+    { "void*" "GetStringUTFLength" }
+    { "void*" "GetStringUTFChars" }
+    { "void*" "ReleaseStringUTFChars" }
+    { "void*" "GetArrayLength" }
+    { "void*" "NewObjectArray" }
+    { "void*" "GetObjectArrayElement" }
+    { "void*" "SetObjectArrayElement" }
+    { "void*" "NewBooleanArray" }
+    { "void*" "NewByteArray" }
+    { "void*" "NewCharArray" }
+    { "void*" "NewShortArray" }
+    { "void*" "NewIntArray" }
+    { "void*" "NewLongArray" }
+    { "void*" "NewFloatArray" }
+    { "void*" "NewDoubleArray" }
+    { "void*" "GetBooleanArrayElements" }
+    { "void*" "GetByteArrayElements" }
+    { "void*" "GetCharArrayElements" }
+    { "void*" "GetShortArrayElements" }
+    { "void*" "GetIntArrayElements" }
+    { "void*" "GetLongArrayElements" }
+    { "void*" "GetFloatArrayElements" }
+    { "void*" "GetDoubleArrayElements" }
+    { "void*" "ReleaseBooleanArrayElements" }
+    { "void*" "ReleaseByteArrayElements" }
+    { "void*" "ReleaseCharArrayElements" }
+    { "void*" "ReleaseShortArrayElements" }
+    { "void*" "ReleaseIntArrayElements" }
+    { "void*" "ReleaseLongArrayElements" }
+    { "void*" "ReleaseFloatArrayElements" }
+    { "void*" "ReleaseDoubleArrayElements" }
+    { "void*" "GetBooleanArrayRegion" }
+    { "void*" "GetByteArrayRegion" }
+    { "void*" "GetCharArrayRegion" }
+    { "void*" "GetShortArrayRegion" }
+    { "void*" "GetIntArrayRegion" }
+    { "void*" "GetLongArrayRegion" }
+    { "void*" "GetFloatArrayRegion" }
+    { "void*" "GetDoubleArrayRegion" }
+    { "void*" "SetBooleanArrayRegion" }
+    { "void*" "SetByteArrayRegion" }
+    { "void*" "SetCharArrayRegion" }
+    { "void*" "SetShortArrayRegion" }
+    { "void*" "SetIntArrayRegion" }
+    { "void*" "SetLongArrayRegion" }
+    { "void*" "SetFloatArrayRegion" }
+    { "void*" "SetDoubleArrayRegion" }
+    { "void*" "RegisterNatives" }
+    { "void*" "UnregisterNatives" }
+    { "void*" "MonitorEnter" }
+    { "void*" "MonitorExit" }
+    { "void*" "GetJavaVM" }
+    { "void*" "GetStringRegion" }
+    { "void*" "GetStringUTFRegion" }
+    { "void*" "GetPrimitiveArrayCritical" }
+    { "void*" "ReleasePrimitiveArrayCritical" }
+    { "void*" "GetStringCritical" }
+    { "void*" "ReleaseStringCritical" }
+    { "void*" "NewWeakGlobalRef" }
+    { "void*" "DeleteWeakGlobalRef" }
+    { "void*" "ExceptionCheck" }
+    { "void*" "NewDirectByteBuffer" }
+    { "void*" "GetDirectBufferAddress" }
+    { "void*" "GetDirectBufferCapacity" } ;
+
+C-STRUCT: JNIEnv
+	{ "JNINativeInterface*" "functions" } ;
+
+FUNCTION: jint JNI_GetDefaultJavaVMInitArgs ( jdk-init-args* args ) ;
+FUNCTION: jint JNI_CreateJavaVM ( void** pvm, void** penv, void* args ) ;
+
+: <jdk-init-args> ( -- jdk-init-args )
+  "jdk-init-args" <c-object>  HEX: 00010004 over set-jdk-init-args-version ;
+
+: jni1 ( -- init-args int )
+  <jdk-init-args> dup JNI_GetDefaultJavaVMInitArgs ;
+
+: jni2 ( -- vm env int )
+  f <void*> f <void*> [
+    jni1 drop JNI_CreateJavaVM
+  ] 2keep rot dup 0 = [
+    >r >r 0 swap void*-nth r> 0 swap void*-nth r> 
+  ] when ;
+
+: (destroy-java-vm) 
+  "int" { "void*" } "cdecl" alien-indirect ;
+
+: (attach-current-thread) 
+  "int" { "void*" "void*" "void*" } "cdecl" alien-indirect ;
+
+: (detach-current-thread) 
+  "int" { "void*" } "cdecl" alien-indirect ;
+
+: (get-env) 
+  "int" { "void*" "void*" "int" } "cdecl" alien-indirect ;
+
+: (attach-current-thread-as-daemon) 
+  "int" { "void*" "void*" "void*" } "cdecl" alien-indirect ;
+
+: destroy-java-vm ( javavm -- int )
+  dup JavaVM-functions JNIInvokeInterface-DestroyJavaVM (destroy-java-vm) ;
+
+: (get-version) 
+  "jint" { "JNIEnv*" } "cdecl" alien-indirect ;
+
+: get-version ( jnienv -- int )
+  dup JNIEnv-functions JNINativeInterface-GetVersion (get-version) ;
+  
+: (find-class) 
+  "void*" { "JNINativeInterface*" "char*" } "cdecl" alien-indirect ;
+
+: find-class ( name jnienv -- int )
+  dup swapd JNIEnv-functions JNINativeInterface-FindClass (find-class) ;
+
+: (get-static-field-id) 
+  "void*" { "JNINativeInterface*" "void*" "char*" "char*" } "cdecl" alien-indirect ;
+
+: get-static-field-id ( class name sig jnienv -- int )
+  dup >r >r 3array r> swap first3 r> JNIEnv-functions JNINativeInterface-GetStaticFieldID (get-static-field-id) ;
+
+: (get-static-object-field) 
+  "void*" { "JNINativeInterface*" "void*" "void*" } "cdecl" alien-indirect ;
+
+: get-static-object-field ( class id jnienv -- int )
+  dup >r >r 2array r> swap first2 r> JNIEnv-functions JNINativeInterface-GetStaticObjectField (get-static-object-field) ;
+
+: (get-method-id) 
+  "void*" { "JNINativeInterface*" "void*" "char*" "char*" } "cdecl" alien-indirect ;
+
+: get-method-id ( class name sig jnienv -- int )
+  dup >r >r 3array r> swap first3 r> JNIEnv-functions JNINativeInterface-GetMethodID (get-method-id) ;
+
+: (new-string) 
+  "void*" { "JNINativeInterface*" "char*" "int" } "cdecl" alien-indirect ;
+
+: new-string ( str jnienv -- str )
+  dup >r >r dup length 2array r> swap first2 r> JNIEnv-functions JNINativeInterface-NewString (new-string) ;
+
+: (call1) 
+  "void" { "JNINativeInterface*" "void*" "void*" "int" } "cdecl" alien-indirect ;
+
+: call1 ( obj method-id jstr jnienv -- )
+  dup >r >r 3array r> swap first3 r> JNIEnv-functions JNINativeInterface-CallObjectMethod (call1) ;
+
diff --git a/unmaintained/jni/jni.factor b/unmaintained/jni/jni.factor
new file mode 100644
index 0000000000..86e1670c50
--- /dev/null
+++ b/unmaintained/jni/jni.factor
@@ -0,0 +1,22 @@
+! Copyright (C) 2006 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+IN: jni
+USING: kernel jni-internals namespaces ;
+
+! High level interface for JNI to be added here...
+
+: test0 ( -- )
+  jni2 drop nip "env" set ;
+
+: test1 ( -- system )
+  "java/lang/System" "env" get find-class ;
+
+: test2 ( system -- system.out )
+  dup "out" "Ljava/io/PrintStream;" "env" get get-static-field-id 
+  "env" get get-static-object-field ;
+
+: test3 ( int system.out -- )
+  "java/io/PrintStream" "env" get find-class ! jstr out class
+  "println" "(I)V" "env" get get-method-id ! jstr out id
+  rot "env" get call1 ;
+  
\ No newline at end of file
diff --git a/unmaintained/jni/load.factor b/unmaintained/jni/load.factor
new file mode 100644
index 0000000000..f5fd45c8d9
--- /dev/null
+++ b/unmaintained/jni/load.factor
@@ -0,0 +1,4 @@
+! Copyright (C) 2006 Chris Double.
+! See http://factorcode.org/license.txt for BSD license.
+PROVIDE: libs/jni
+{ +files+ { "jni-internals.factor" "jni.factor" } } ;
diff --git a/unmaintained/lambda/TODO.txt b/unmaintained/lambda/TODO.txt
deleted file mode 100644
index c196e95ceb..0000000000
--- a/unmaintained/lambda/TODO.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Lambda TODO
------------
-Documentation
-Unit tests
-More graceful parse error handling
-Factor out tree traversing into its own lib
-
-Redesign
---------
-Why doesn't PRED work?
-
-Core
-----
-ISNIL
-READCHAR
\ No newline at end of file
diff --git a/unmaintained/lambda/core.factor b/unmaintained/lambda/core.factor
deleted file mode 100644
index 48ba96700b..0000000000
--- a/unmaintained/lambda/core.factor
+++ /dev/null
@@ -1,79 +0,0 @@
-USING: arrays lazy-lists io strings sequences math namespaces
-kernel ;
-IN: lambda
-
-: lambda-core ( -- expr-string-array )
-    {
-        ":0 (one.(zero.zero))"
-        ":SUCC (num.(one.(zero.(one((num one) zero)))))"
-    }
-    
-    0 lfrom 100 swap ltake list>array
-    [ 
-        [ ":" , dup 1 + number>string , " (SUCC " , number>string ,
-        ")" , ] { } make concat
-    ] map append
-    
-    0 lfrom 26 swap ltake list>array
-    [
-        [ ":" , 65 + dup 1string , " " , number>string , ] { } make concat
-    ] map append
-    
-    {
-        ":LF 10"
-        ":FALSE (t.(f.f))"
-        ":TRUE (t.(f.t))"
-        ":AND (p.(q.((p q) FALSE)))"
-        ":OR (p.(q.((p TRUE) q)))"
-        ":ISZERO (num.((num (pred. FALSE)) TRUE))"
-        ":ADD (num.(other.((num SUCC) other)))"
-        ":MULT (num.(other.((num (ADD other)) 0)))"
-        ":PRED (n.(f.(x.(((n (g.(h.(h(g f))))) (u. x)) (u.u)))))"
-        ":SUBFROM (num.(other.((num PRED) other)))"
-        ":EQUAL (num.(other.((AND (ISZERO ((SUBFROM num) other))) (ISZERO ((SUBFROM other) num)))))"
-        ":FACT (fact.(num.(((ISZERO num) 1) ((MULT num) (fact (PRED num))))))"
-        ":YCOMBINATOR (func.((y. (func (y y)))(y. (func (y y)))))"
-        ":FACTORIAL (YCOMBINATOR FACT)"
-        ":CONS (car.(cdr.(which.((which car) cdr))))"
-        ":CAR (cons.(cons TRUE))"
-        ":CDR (cons.(cons FALSE))"
-        ":PCONS (pcons.(num.(cons.(((ISZERO num) (PRINTSPECIAL LF)) ((PRINTCHAR (CAR cons)) ((pcons (PRED num)) (CDR cons)))))))"
-        ":PRINTCONS (YCOMBINATOR PCONS)"
-        ":NUMTOCHAR (num. ((ADD 48) num))"
-        ":PRINTNUM (num.(PRINTCHAR (NUMTOCHAR num)))"
-        ":PRINTCHAR (char.([PRINTCHAR] (ALIENNUM char)))"
-        ":PRINTSPECIAL (special.([PRINTCHAR] (ALIENNUM special)))"
-        ":ALIEN0 alienbaseonenum"
-        ":ALIENNUM (num.((num [ALIENSUCC]) ALIEN0))"
-        ":HELLOCONS ((CONS H) ((CONS E) ((CONS Y) ((CONS 0) nil))))"
-        ":HELLO ((PRINTCONS 3) HELLOCONS)"
-        "(([HELLO] nil) ([INFO] nil))"
-    } append ;
-
-: print-return ( -- node )
-    write "(nil.nil)" lambda-parse second ;
-    
-: HELLO ( node -- node )
-    drop "\nHello and Welcome to Lambda!\n" print-return ;
-
-: INFO ( node -- node )
-    drop "Type HELLO and wait 10 seconds to see me flex my io muscles.\n" print-return ;
-
-: ALIENSUCC ( node -- node )
-    var-node-name "a" append <var-node> ;
-
-: ALIENPRED ( node -- node )
-    var-node-name 1 tail <var-node> ;
-
-: ALIENISZERO ( node -- node )
-    ;
-
-: PRINTCHAR ( node -- node )
-    #! takes a base one num and prints its char equivalent
-    var-node-name length "alienbaseonenum" length - 1string print-return ;
-
-: READCHAR ( node -- node )
-    #! reads one character of input and stores it as a base one num
-    "alienbaseonenum" read1 "a" <array> >string <var-node> ;
-
-    
\ No newline at end of file
diff --git a/unmaintained/lambda/lambda.factor b/unmaintained/lambda/lambda.factor
deleted file mode 100644
index 441eff8325..0000000000
--- a/unmaintained/lambda/lambda.factor
+++ /dev/null
@@ -1,28 +0,0 @@
-#! An interpreter for lambda expressions, by Matthew Willis
-USING: io strings hashtables sequences namespaces kernel ;
-IN: lambda
-
-: lambda-print ( name/expr -- )
-    dup string? 
-    [   dup lambda-names get hash expr>string " " swap 
-        append append "DEF " swap append 
-    ] [ expr>string "=> " swap append 
-    ] if print flush ;
-
-: lambda-define ( parse-result -- name/expr )
-    #! Make sure not to evaluate definitions.
-    first2 over [ over lambda-names get set-hash ] [ nip ] if ;
-
-: lambda-eval ( name/expr -- name/expr )
-    dup string? [ normalize ] unless ;
-
-: lambda-boot ( -- )
-    #! load the core lambda library
-    H{ } clone lambda-names set lambda-core
-    [ lambda-parse lambda-define lambda-eval lambda-print ] each ;
- 
-: lambda ( -- )
-    lambda-names get [ lambda-boot ] unless
-    readln dup "." = [ drop ] [
-        lambda-parse lambda-define lambda-eval lambda-print lambda
-    ] if ;
\ No newline at end of file
diff --git a/unmaintained/lambda/load.factor b/unmaintained/lambda/load.factor
deleted file mode 100644
index bd0dd66b07..0000000000
--- a/unmaintained/lambda/load.factor
+++ /dev/null
@@ -1,14 +0,0 @@
-REQUIRES: libs/lazy-lists libs/parser-combinators ;
-PROVIDE: libs/lambda
-{ +files+ {
-    "nodes.factor"
-    "parser.factor"
-    "core.factor"
-    "lambda.factor"
-} }
-{ +tests+ {
-    "test/lambda.factor"
-} } ;
-
-USE: lambda
-MAIN: libs/lambda lambda ;
\ No newline at end of file
diff --git a/unmaintained/lambda/nodes.factor b/unmaintained/lambda/nodes.factor
deleted file mode 100644
index 35869b1011..0000000000
--- a/unmaintained/lambda/nodes.factor
+++ /dev/null
@@ -1,130 +0,0 @@
-#! A lambda expression manipulator, by Matthew Willis
-USING: lazy-lists strings arrays hashtables 
-sequences namespaces words parser kernel ;
-
-IN: lambda
-
-SYMBOL: lambda-names
-TUPLE: lambda-node self expr name ;
-TUPLE: apply-node func arg ;
-TUPLE: var-node name ; #! var is either a var, name, or pointer to a lambda-node
-TUPLE: beta-node expr lambdas ; #! a namespace node
-TUPLE: alien-node word ;
-
-M: lambda-node equal? 2drop f ;
-
-GENERIC: bind-var
-M: lambda-node bind-var ( binding lambda -- ) 
-    lambda-node-expr bind-var ; 
-
-M: apply-node bind-var ( binding apply -- )
-    [ apply-node-func bind-var ] 2keep apply-node-arg bind-var ;
-
-M: var-node bind-var ( binding var-node -- )
-    2dup var-node-name swap lambda-node-name = 
-    [ set-var-node-name ] [ 2drop ] if ;
-
-M: alien-node bind-var ( binding alien -- ) 2drop ;
-
-C: lambda-node ( expr var lambda -- lambda )
-    swapd [ set-lambda-node-name ] keep
-    [ set-lambda-node-expr ] 2keep
-    dup [ set-lambda-node-self ] keep
-    [ swap bind-var ] keep ;
-
-GENERIC: beta-push
-#! push the beta further down the syntax tree
-#!  this is how lambda achieves lazy beta reduction and efficient cloning.
-#!  everything outside of the beta must have been cloned.
-M: lambda-node beta-push ( beta lambda -- lambda )
-    clone dup lambda-node-expr pick set-beta-node-expr
-    [ set-lambda-node-expr ] keep ;
-
-M: apply-node beta-push ( beta apply -- apply )
-    #! push the beta into each branch, cloning the beta
-    swap dup clone 
-    pick apply-node-func swap [ set-beta-node-expr ] keep swap
-    rot apply-node-arg swap [ set-beta-node-expr ] keep
-    <apply-node> ;
-
-M: var-node beta-push ( beta var -- expr )
-    #! substitute the variable with the appropriate entry from the
-    #! beta namespace
-    tuck var-node-name swap beta-node-lambdas hash dup
-    [ nip ] [ drop ] if ;
-
-M: beta-node beta-push ( beta inner-beta -- beta )
-    #! combines the namespaces of two betas
-    dup beta-node-lambdas rot beta-node-lambdas hash-union
-    swap [ set-beta-node-lambdas ] keep ;
-
-M: alien-node beta-push ( beta alien -- alien ) nip ;
-
-: beta-reduce ( apply -- beta )
-    #! construct a beta-node which carries the namespace of the lambda
-    dup apply-node-arg swap apply-node-func dup lambda-node-expr -rot
-    lambda-node-self H{ } clone [ set-hash ] keep <beta-node> ;
-
-DEFER: evaluate
-: left-reduce ( apply -- apply/f )
-    #! we are at an application node -- evaluate the function
-    dup apply-node-func evaluate dup
-    [ swap [ set-apply-node-func ] keep ]
-    [ nip ] if ;
-
-: alien-reduce ( apply -- node/f )
-    #! we have come to an alien application, which requires us to
-    #! fully normalize the argument before proceeding
-    dup apply-node-arg evaluate dup
-    [ swap [ set-apply-node-arg ] keep ]
-    [ #! right side is normalized, we are ready to do the alien application
-        drop dup apply-node-arg swap apply-node-func
-        alien-node-word "lambda" lookup execute
-    ] if ;
-
-GENERIC: evaluate
-#! There are 
-#!   beta-reduction, beta-pushing, and name replacing.
-: normalize ( expr -- expr )
-    dup evaluate [ nip normalize ] when* ;
-    
-M: lambda-node evaluate ( lambda -- node/f ) drop f ;
-
-M: apply-node evaluate ( apply -- node )
-    dup apply-node-func lambda-node?
-    [ beta-reduce ] 
-    [ 
-        dup apply-node-func alien-node?
-        [ alien-reduce ]
-        [ left-reduce ] if
-    ] if ;
-
-M: var-node evaluate ( var -- node/f ) 
-    var-node-name lambda-names get hash ;
-
-M: beta-node evaluate ( beta -- node/f ) 
-    dup beta-node-expr beta-push ;
-
-M: alien-node evaluate ( alien -- node/f ) drop f ;
-
-GENERIC: expr>string
-M: lambda-node expr>string ( lambda-node -- string )
-    [ 
-        dup "(" , lambda-node-name , ". " , 
-        lambda-node-expr expr>string , ")" , 
-    ] { } make concat ;
-
-M: apply-node expr>string ( apply-node -- string ) 
-    [ 
-        dup "(" , apply-node-func expr>string , " " , 
-        apply-node-arg expr>string , ")" , 
-    ] { } make concat ;
-
-M: var-node expr>string ( variable-node -- string ) 
-    var-node-name dup string? [ lambda-node-name ] unless ;
-
-M: alien-node expr>string ( alien-node -- string )
-    [ "[" , alien-node-word , "]" , ] { } make concat ;
-
-M: beta-node expr>string ( beta -- string )
-    [ "beta<" , beta-node-expr expr>string , ">" , ] { } make concat ;
\ No newline at end of file
diff --git a/unmaintained/lambda/parser.factor b/unmaintained/lambda/parser.factor
deleted file mode 100644
index eefdffdc38..0000000000
--- a/unmaintained/lambda/parser.factor
+++ /dev/null
@@ -1,70 +0,0 @@
-#! A parser for lambda expressions, by Matthew Willis
-#! The grammar in BNF is:
-#! <expr> ::= <id>
-#! <expr> ::= <name>
-#! <expr> ::= (<id> . <expr>)
-#! <expr> ::= (<expr> <expr>)
-#! <line> ::= <expr>
-#! <line> ::= <name> : <expr>
-USING: lazy-lists parser-combinators strings sequences kernel ;
-
-IN: lambda
-
-LAZY: <letter> 
-    #! parses an uppercase or lowercase letter
-	[ letter? ] satisfy [ 1string ] <@ ;
-
-LAZY: <LETTER> 
-    #! parses an uppercase or lowercase letter
-    [ LETTER? ] satisfy [ 1string ] <@ ;
-
-LAZY: <number>
-    #! parses a number
-    [ digit? ] satisfy [ 1string ] <@ ;
-
-LAZY: <alphanumeric>
-    #! parses an alphanumeral
-    <letter> <number> <|> ;
-
-LAZY: <ALPHANUMERIC>
-    #! parses an alphanumeral
-    <LETTER> <number> <|> ;
-
-LAZY: <id>
-    #! parses an identifier (string for now)
-    #! TODO: do we need to enter it into a symbol table?
-    <letter> <alphanumeric> <*> <&:> [ concat <var-node> ] <@ ;
-
-LAZY: <name>
-    #! parses a name, which is used in replacement
-    <ALPHANUMERIC> <+> [ concat ] <@ ;
-
-DEFER: <expr>
-LAZY: <lambda> ( -- parser )
-    #! parses (<id>.<expr>), the "lambda" expression
-    #! all occurences of <id> are replaced with a pointer to this
-    #! lambda expression.
-    "(" token <id> sp &> "." token sp <& 
-    <expr> sp <&> ")" token sp <&
-    [ [ first var-node-name ] keep second <lambda-node> ] <@ ;
-
-LAZY: <apply> ( -- parser )
-    #! parses (<expr> <expr>), the function application
-    "(" token <expr> sp &> <expr> sp <&> ")" token sp <& 
-    [ [ first ] keep second <apply-node> ] <@ ;
-
-LAZY: <alien> ( -- parser )
-    #! parses [<FACTOR-WORD>], the alien invocation
-    #! an alien factor word must be all capital letters and numerals
-    "[" token <name> sp &> "]" token sp <& [ <alien-node> ] <@ ;
-
-LAZY: <expr>
-    <id> <lambda> <apply> <|> <|>
-    <name> [ <var-node> ] <@ <|> <alien> <|> ;
-
-LAZY: <line>
-    ":" token <name> &> <expr> sp <&> f succeed <expr> <&> 
-    <|> "." token <name> &> f succeed <&> <|> ;
-
-: lambda-parse
-    <line> some parse force ;
\ No newline at end of file
diff --git a/unmaintained/lambda/test/lambda.factor b/unmaintained/lambda/test/lambda.factor
deleted file mode 100644
index 96c27a3a09..0000000000
--- a/unmaintained/lambda/test/lambda.factor
+++ /dev/null
@@ -1,11 +0,0 @@
-USING: lambda test hashtables sequences kernel ;
-
-#! test simple parsing
-[ "(A. A)" ] [ "(b.b)" lambda-parse second bound-vars swap expr>string ] unit-test
-
-#! test name replacement
-[ "(A. A)" ] [ 
-                "(b.b)" lambda-parse second "OK" H{ } clone [ set-hash ] keep
-                "OK" lambda-parse second replace-names bound-vars
-                swap expr>string 
-             ] unit-test
\ No newline at end of file
diff --git a/unmaintained/lint/lint.factor b/unmaintained/lint/lint.factor
index dcf52f723a..644346d29e 100644
--- a/unmaintained/lint/lint.factor
+++ b/unmaintained/lint/lint.factor
@@ -1,8 +1,9 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.accessors arrays assocs combinators.lib io kernel
-macros math namespaces prettyprint quotations sequences
-vectors vocabs words html.elements slots.private tar ;
+USING: accessors alien alien.accessors arrays assocs
+combinators.lib io kernel macros math namespaces prettyprint
+quotations sequences vectors vocabs words html.elements sets
+slots.private combinators.short-circuit ;
 IN: lint
 
 SYMBOL: def-hash
@@ -18,7 +19,7 @@ SYMBOL: def-hash-keys
         2drop
     ] if ;
 
-: more-defs
+: more-defs ( -- )
     {
         { [ swap >r swap r> ] -rot }
         { [ swap swapd ] -rot }
@@ -33,6 +34,7 @@ SYMBOL: def-hash-keys
         { [ 0 = ] zero? }
         { [ pop drop ] pop* }
         { [ [ ] if ] when }
+        { [ f = not ] >boolean }
     } [ first2 swap add-word-def ] each ;
 
 : accessor-words ( -- seq )
@@ -51,33 +53,32 @@ SYMBOL: def-hash-keys
     {
         [ get ] [ t ] [ { } ] [ . ] [ drop f ]
         [ drop ] [ f ] [ first ] [ second ] [ third ] [ fourth ]
-        [ ">" write-html ] [ <unimplemented-typeflag> throw ]
-        [ "/>" write-html ]
+        [ ">" write-html ] [ "/>" write-html ]
     } ;
 
 H{ } clone def-hash set-global
-all-words [ dup word-def add-word-def ] each
+all-words [ dup def>> add-word-def ] each
 more-defs
 
 ! Remove empty word defs
 def-hash get-global [
     drop empty? not
-] assoc-subset
+] assoc-filter
 
 ! Remove constants [ 1 ]
 [
     drop dup length 1 = swap first number? and not
-] assoc-subset
+] assoc-filter
 
 ! Remove set-alien-cell, etc.
 [
-    drop [ accessor-words swap seq-diff ] keep [ length ] bi@ =
-] assoc-subset
+    drop [ accessor-words diff ] keep [ length ] bi@ =
+] assoc-filter
 
 ! Remove trivial defs
 [
     drop trivial-defs member? not
-] assoc-subset
+] assoc-filter
 
 ! Remove n m shift defs
 [
@@ -85,19 +86,19 @@ def-hash get-global [
         dup first2 [ number? ] both?
         swap third \ shift = and not
     ] [ drop t ] if
-] assoc-subset 
+] assoc-filter 
 
 ! Remove [ n slot ]
 [
     drop dup length 2 = [
         first2 \ slot = swap number? and not
     ] [ drop t ] if
-] assoc-subset def-hash set-global
+] assoc-filter def-hash set-global
 
-: find-duplicates
+: find-duplicates ( -- seq )
     def-hash get-global [
         nip length 1 >
-    ] assoc-subset ;
+    ] assoc-filter ;
 
 def-hash get-global keys def-hash-keys set-global
 
@@ -107,18 +108,18 @@ M: object lint ( obj -- seq )
     drop f ;
 
 : subseq/member? ( subseq/member seq -- ? )
-    { [ 2dup start ] [ 2dup member? ] } || 2nip ;
+    { [ start ] [ member? ] } 2|| ;
 
 M: callable lint ( quot -- seq )
     def-hash-keys get [
         swap subseq/member?
-    ] with subset ;
+    ] with filter ;
 
 M: word lint ( word -- seq )
-    word-def dup callable? [ lint ] [ drop f ] if ;
+    def>> dup callable? [ lint ] [ drop f ] if ;
 
 : word-path. ( word -- )
-    [ word-vocabulary ":" ] keep unparse 3append write nl ;
+    [ vocabulary>> ":" ] keep unparse 3append write nl ;
 
 : (lint.) ( pair -- )
     first2 >r word-path. r> [
@@ -135,7 +136,7 @@ M: word lint ( word -- seq )
 
 GENERIC: run-lint ( obj -- obj )
 
-: (trim-self)
+: (trim-self) ( val key -- obj ? )
     def-hash get-global at* [
         dupd remove empty? not
     ] [
@@ -143,13 +144,13 @@ GENERIC: run-lint ( obj -- obj )
     ] if ;
 
 : trim-self ( seq -- newseq )
-    [ [ (trim-self) ] subset ] assoc-map ;
+    [ [ (trim-self) ] filter ] assoc-map ;
 
 : filter-symbols ( alist -- alist )
     [
         nip first dup def-hash get at
         [ first ] bi@ literalize = not
-    ] assoc-subset ;
+    ] assoc-filter ;
 
 M: sequence run-lint ( seq -- seq )
     [
@@ -157,7 +158,7 @@ M: sequence run-lint ( seq -- seq )
         dup lint
     ] { } map>assoc
     trim-self
-    [ second empty? not ] subset
+    [ second empty? not ] filter
     filter-symbols ;
 
 M: word run-lint ( word -- seq )
diff --git a/unmaintained/lisp/README b/unmaintained/lisp/README
deleted file mode 100644
index b33a6620b1..0000000000
--- a/unmaintained/lisp/README
+++ /dev/null
@@ -1,15 +0,0 @@
-
-USE: lisp.listener lisp-listener
-
-This only works with a tty listener. lisp-listener doesn't play well
-with the ui listener.
-
-There is no run-file. Just paste in your code. :-)
-
-If you pick a name for a symbol that's already used in some Factor
-vocabulary, Factor Lisp will complain. For example, x and y are words
-in the gadgets-paragraphs vocabulary. To use these as symbols in
-Factor Lisp, just do this before you use them:
-
-       SYMBOL: x
-       SYMBOL: y
\ No newline at end of file
diff --git a/unmaintained/lisp/authors.txt b/unmaintained/lisp/authors.txt
deleted file mode 100644
index 6cfd5da273..0000000000
--- a/unmaintained/lisp/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Eduardo Cavazos
diff --git a/unmaintained/lisp/lexer/lexer.factor b/unmaintained/lisp/lexer/lexer.factor
deleted file mode 100644
index 14f07194f7..0000000000
--- a/unmaintained/lisp/lexer/lexer.factor
+++ /dev/null
@@ -1,13 +0,0 @@
-
-USING: kernel parser generic math sequences strings ;
-
-IN: lisp.lexer
-
-TUPLE: sexp-lexer ;
-
-: <sexp-lexer> ( text -- lexer )
-    <lexer> sexp-lexer construct-delegate ;
-
-M: sexp-lexer skip-word ( lexer -- )
-[ 2dup nth "\"()" member?
-  [ drop 1+ ] [ [ dup blank? swap ")" member? or ] skip ] if ] change-column ;
\ No newline at end of file
diff --git a/unmaintained/lisp/lisp.factor b/unmaintained/lisp/lisp.factor
deleted file mode 100644
index 2650e9ce23..0000000000
--- a/unmaintained/lisp/lisp.factor
+++ /dev/null
@@ -1,164 +0,0 @@
-
-USING: kernel words namespaces combinators math
-       quotations strings arrays hashtables sequences
-       namespaces.lib rewrite-closures ;
-
-IN: lisp
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: && ( obj seq -- ? ) [ call ] with all? ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (quote sym)
-
-SYMBOL: quote
-
-: quote-exp? ( exp -- ? ) { [ array? ] [ length 2 = ] [ first quote = ] } && ;
-
-: eval-quote ( exp -- val ) second ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: eval-symbol ( exp -- val ) get ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-DEFER: eval
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (begin ...)
-
-SYMBOL: begin
-
-: begin-exp? ( exp -- ? ) { [ array? ] [ length 2 >= ] [ first begin = ] } && ;
-
-: eval-begin ( exp -- val ) 1 tail dup peek >r 1 head* [ eval ] each r> eval ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (omega parameters ...)
-
-SYMBOL: omega
-
-: omega-exp? ( exp -- ? ) { [ array? ] [ length 3 >= ] [ first omega = ] } && ;
-
-: eval-omega ( exp -- val )
-dup second swap 2 tail { begin } swap append [ eval ] curry lambda ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (let ((var val) ...) exp ...)
-
-SYMBOL: let
-
-: let-exp? ( exp -- ? ) { [ array? ] [ length 2 >= ] [ first let = ] } && ;
-
-: eval-let ( exp -- val )
-dup >r second [ second ] map r>
-dup 2 tail swap second [ first ] map add* omega add* add* eval ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (df name (param ...) exp ...)
-
-SYMBOL: df
-
-: df-exp? ( exp -- ? ) { [ array? ] [ length 3 >= ] [ first df = ] } && ;
-
-: eval-df ( exp -- val ) dup 2 tail omega add* eval swap second tuck set ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (dv var val)
-
-SYMBOL: dv
-
-: dv-exp? ( exp -- ? ) { [ array? ] [ length 3 = ] [ first dv = ] } && ;
-
-: eval-dv ( exp -- val ) dup >r third eval r> second set ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (set! var val)
-
-SYMBOL: set!
-
-: set!-exp? ( exp -- ? ) { [ array? ] [ length 3 = ] [ first set! = ] } && ;
-
-: eval-set! ( exp -- val ) dup >r third eval r> second set* ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (dyn (param ...) exp ...)
-
-SYMBOL: dyn
-
-: dyn-exp? ( exp -- ? ) { [ array? ] [ length 3 >= ] [ first dyn = ] } && ;
-
-: eval-dyn ( exp -- val )
-dup second swap 2 tail begin add* [ eval ] curry parametric-quot scoped-quot ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! (dy name (param ...) exp ...)
-
-SYMBOL: dy
-
-: dy-exp? ( exp -- ? ) { [ array? ] [ length 3 >= ] [ first dy = ] } && ;
-
-: eval-dy ( exp -- val ) dup 2 tail dyn add* eval swap second tuck set ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-! : eval-list ( exp -- val )
-! [ eval ] map unclip >r [ ] each r>
-! { { [ dup quotation? ] [ call ] }
-!   { [ dup word? ]      [ execute ] } }
-! cond ;
-
-: eval-list ( exp -- val )
-unclip eval >r [ eval ] each r>
-{ { [ dup quotation? ] [ call ] }
-  { [ dup word? ]      [ execute ] } }
-cond ;
-
-! should probably be:
-
-! : eval-list ( exp -- val )
-! unclip >r [ eval ] each r> eval
-! { { [ dup quotation? ] [ call ] }
-!   { [ dup word? ]      [ execute ] } }
-! cond ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-: eval ( exp -- val )
-{ { [ dup t eq? ]   [ ] }
-  { [ dup f eq? ]   [ ] }
-  { [ dup number? ] [ ] }
-  { [ dup string? ] [ ] }
-  { [ dup quotation? ] [ ] }
-  { [ dup hashtable? ] [ ] }
-  { [ dup quote-exp? ] [ eval-quote ] }
-  { [ dup begin-exp? ] [ eval-begin ] }
-  { [ dup omega-exp? ] [ eval-omega ] }
-  { [ dup let-exp? ]   [ eval-let ] }
-  { [ dup df-exp? ]    [ eval-df ] }
-  { [ dup dv-exp? ]    [ eval-dv ] }
-  { [ dup set!-exp? ]  [ eval-set! ] }
-  { [ dup dyn-exp? ]   [ eval-dyn ] }
-  { [ dup dy-exp? ]   [ eval-dy ] }
-  { [ dup symbol? ] [ eval-symbol ] }
-  { [ dup word? ] [ ] }
-  { [ dup array? ]  [ eval-list ] }
-} cond ;
-
-! : eval-quot-call ( exp -- val ) [ eval ] map unclip >r [ ] each r> call ;
-
-! : eval-word-call ( exp -- val ) [ eval ] map unclip >r [ ] each r> execute ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
diff --git a/unmaintained/lisp/listener/listener.factor b/unmaintained/lisp/listener/listener.factor
deleted file mode 100644
index 91f0bb2a8d..0000000000
--- a/unmaintained/lisp/listener/listener.factor
+++ /dev/null
@@ -1,28 +0,0 @@
-
-USING: kernel parser namespaces io prettyprint math arrays sequences
-       words listener debugger
-       lisp lisp.lexer lisp.parser.mod lisp.listener.mod ;
-
-IN: lisp.listener
-
-: parse-stdio ( -- quot/f ) stdio get read-quot ;
-
-: stuff? ( -- ? ) datastack length 0 > ;
-
-: lisp-listen ( -- )
-[ parse-stdio [ call stuff? [ eval ] when ] [ bye ] if* ] try ;
-
-: until-quit ( -- )
-quit-flag get
-[ quit-flag off ]
-[ listener-hook get call prompt. lisp-listen until-quit ]
-if ;
-
-: lisp-listener ( -- ) [
-use [ clone ] change
-[ <sexp-lexer> ] >listener-lexer
-[ in get create dup define-symbol ] >new-symbol-action
-{ "lisp" "lisp.syntax" } add-use
-! [ listener-hook get call prompt. lisp-listen ] until-quit
-until-quit
-] with-scope ;
diff --git a/unmaintained/lisp/listener/mod/mod.factor b/unmaintained/lisp/listener/mod/mod.factor
deleted file mode 100644
index 06ea7f229c..0000000000
--- a/unmaintained/lisp/listener/mod/mod.factor
+++ /dev/null
@@ -1,20 +0,0 @@
-! Broken by recent changes
-
-USING: kernel continuations namespaces parser combinators tuples generic vars ;
-! 
-IN: listener
-! 
-! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-! 
-VAR: listener-lexer
-! 
-! [ <lexer> ] listener-lexer set-global
-! 
-! : listener-parse-lines ( lines -- quot ) listener-lexer> call (parse-lines) ;
-! 
-! : parse-interactive-step ( lines -- quot/f )
-! [ listener-parse-lines ] catch {
-!     { [ dup [ unexpected-eof? ] is? ] [ 2drop f ] }
-!     { [ dup not ]		      [ drop ] }
-!     { [ t ]	    		      [ rethrow ] }
-! } cond ;
diff --git a/unmaintained/lisp/parser/mod/mod.factor b/unmaintained/lisp/parser/mod/mod.factor
deleted file mode 100644
index e09562b6c3..0000000000
--- a/unmaintained/lisp/parser/mod/mod.factor
+++ /dev/null
@@ -1,38 +0,0 @@
-! Broken by recent changes
-
-USING: kernel vocabs words combinators math
-       namespaces arrays sequences assocs sorting
-       inspector vars ;
-
-IN: parser
-! 
-! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-! 
-! : word-restarts ( string -- restarts )
-! words-named natural-sort
-! [ [ "Use the word " swap summary append ] keep 2array ] map
-! { "Define this word as a symbol" 0 } add
-! { "Defer this word in the 'scratchpad' vocabulary" f } add ;
-! 
-! : no-word-option ( obj -- word )
-! { { [ dup f = ] [ drop in get create ] }
-!   { [ dup 0 = ] [ drop in get create dup define-symbol ] }
-!   { [ t ]       [ nip dup word-vocabulary use+ ] }
-! } cond ;
-! 
-VAR: new-symbol-action ! ( str -- word )
-! 
-! [ dup no-word no-word-option ] new-symbol-action set-global 
-! 
-! ! For lisp:
-! ! 
-! ! [ in get create dup define-symbol ] >new-symbol-action
-! 
-! : search ( str -- word )
-! { { [ dup use get assoc-stack ]
-!     [ use get assoc-stack ] }
-!   { [ dup words-named empty? ]
-!     [ new-symbol-action> call ] }
-!   { [ dup words-named length 0 > ]
-!     [ dup no-word no-word-option ] }
-! } cond ;
diff --git a/unmaintained/lisp/summary.txt b/unmaintained/lisp/summary.txt
deleted file mode 100644
index e25e24ce75..0000000000
--- a/unmaintained/lisp/summary.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Factor Lisp Interpreter
-
diff --git a/unmaintained/lisp/syntax/syntax.factor b/unmaintained/lisp/syntax/syntax.factor
deleted file mode 100644
index 4c4653804f..0000000000
--- a/unmaintained/lisp/syntax/syntax.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-
-USING: parser arrays ;
-
-IN: lisp.syntax
-
-DEFER: )
-
-: ( \ ) [ >array ] parse-literal ; parsing
\ No newline at end of file
diff --git a/unmaintained/lisp/tags.txt b/unmaintained/lisp/tags.txt
deleted file mode 100644
index f73238460f..0000000000
--- a/unmaintained/lisp/tags.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-extensions
-languages
diff --git a/extra/lsys/ui/authors.txt b/unmaintained/lsys/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/lsys/ui/authors.txt
rename to unmaintained/lsys/authors.txt
diff --git a/extra/turtle/authors.txt b/unmaintained/lsys/strings/authors.txt
old mode 100644
new mode 100755
similarity index 100%
rename from extra/turtle/authors.txt
rename to unmaintained/lsys/strings/authors.txt
diff --git a/extra/ui/gadgets/lib/authors.txt b/unmaintained/lsys/strings/interpret/authors.txt
similarity index 100%
rename from extra/ui/gadgets/lib/authors.txt
rename to unmaintained/lsys/strings/interpret/authors.txt
diff --git a/extra/lsys/strings/interpret/interpret.factor b/unmaintained/lsys/strings/interpret/interpret.factor
similarity index 90%
rename from extra/lsys/strings/interpret/interpret.factor
rename to unmaintained/lsys/strings/interpret/interpret.factor
index bcd87ca137..8d27b29d22 100644
--- a/extra/lsys/strings/interpret/interpret.factor
+++ b/unmaintained/lsys/strings/interpret/interpret.factor
@@ -1,6 +1,6 @@
 
 USING: kernel sequences quotations assocs math math.parser
-       combinators.lib vars lsys.strings ;
+       combinators.lib vars lsys.strings combinators.short-circuit ;
 
 IN: lsys.strings.interpret
 
@@ -22,7 +22,7 @@ VAR: command-table
 : exec-command* ( string -- )
   [ parameter ] [ command ] bi
   command-table> at dup
-  [ 1 tail* call ] [ 3drop ] if ;
+  [ 1 tail* call ] [ 2drop ] if ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
diff --git a/extra/unix/linux/fs/authors.txt b/unmaintained/lsys/strings/rewrite/authors.txt
similarity index 100%
rename from extra/unix/linux/fs/authors.txt
rename to unmaintained/lsys/strings/rewrite/authors.txt
diff --git a/extra/lsys/strings/rewrite/rewrite.factor b/unmaintained/lsys/strings/rewrite/rewrite.factor
similarity index 92%
rename from extra/lsys/strings/rewrite/rewrite.factor
rename to unmaintained/lsys/strings/rewrite/rewrite.factor
index eb76dbd751..622a86c425 100644
--- a/extra/lsys/strings/rewrite/rewrite.factor
+++ b/unmaintained/lsys/strings/rewrite/rewrite.factor
@@ -1,6 +1,6 @@
 
 USING: kernel sbufs strings sequences assocs math
-       combinators.lib vars lsys.strings ;
+       combinators.lib vars lsys.strings combinators.short-circuit ;
 
 IN: lsys.strings.rewrite
 
diff --git a/extra/lsys/strings/strings.factor b/unmaintained/lsys/strings/strings.factor
similarity index 81%
rename from extra/lsys/strings/strings.factor
rename to unmaintained/lsys/strings/strings.factor
index 3c9dfcab6c..603c6cc630 100644
--- a/extra/lsys/strings/strings.factor
+++ b/unmaintained/lsys/strings/strings.factor
@@ -1,11 +1,11 @@
 
-USING: kernel sequences math combinators.lib ;
+USING: kernel sequences math combinators.lib combinators.short-circuit ;
 
 IN: lsys.strings
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: has-param? ( slice -- ? ) { [ length 1 > ] [ second CHAR: ( = ] } <-&& ;
+: has-param? ( slice -- ? ) { [ length 1 > ] [ second CHAR: ( = ] } 1&& ;
 
 : next+rest ( slice -- next rest ) [ 1 head ] [ 1 tail-slice ] bi ;
 
diff --git a/extra/lsys/summary.txt b/unmaintained/lsys/summary.txt
similarity index 100%
rename from extra/lsys/summary.txt
rename to unmaintained/lsys/summary.txt
diff --git a/extra/lsys/tags.txt b/unmaintained/lsys/tags.txt
similarity index 100%
rename from extra/lsys/tags.txt
rename to unmaintained/lsys/tags.txt
diff --git a/extra/unix/linux/if/authors.txt b/unmaintained/lsys/tortoise/authors.txt
similarity index 100%
rename from extra/unix/linux/if/authors.txt
rename to unmaintained/lsys/tortoise/authors.txt
diff --git a/extra/unix/linux/ifreq/authors.txt b/unmaintained/lsys/tortoise/graphics/authors.txt
similarity index 100%
rename from extra/unix/linux/ifreq/authors.txt
rename to unmaintained/lsys/tortoise/graphics/authors.txt
diff --git a/extra/lsys/tortoise/graphics/graphics.factor b/unmaintained/lsys/tortoise/graphics/graphics.factor
similarity index 98%
rename from extra/lsys/tortoise/graphics/graphics.factor
rename to unmaintained/lsys/tortoise/graphics/graphics.factor
index d75915ae8e..ab679c8369 100644
--- a/extra/lsys/tortoise/graphics/graphics.factor
+++ b/unmaintained/lsys/tortoise/graphics/graphics.factor
@@ -2,7 +2,7 @@
 USING: kernel math vectors sequences opengl.gl math.vectors math.order
        math.matrices vars opengl self pos ori turtle lsys.tortoise
 
-       lsys.strings.interpret ;
+       lsys.strings.interpret combinators.short-circuit ;
 
        ! lsys.strings
 
diff --git a/extra/lsys/tortoise/tortoise.factor b/unmaintained/lsys/tortoise/tortoise.factor
similarity index 100%
rename from extra/lsys/tortoise/tortoise.factor
rename to unmaintained/lsys/tortoise/tortoise.factor
diff --git a/extra/unix/linux/route/authors.txt b/unmaintained/lsys/ui/authors.txt
similarity index 100%
rename from extra/unix/linux/route/authors.txt
rename to unmaintained/lsys/ui/authors.txt
diff --git a/extra/lsys/ui/deploy.factor b/unmaintained/lsys/ui/deploy.factor
similarity index 100%
rename from extra/lsys/ui/deploy.factor
rename to unmaintained/lsys/ui/deploy.factor
diff --git a/unmaintained/lsys/ui/tags.txt b/unmaintained/lsys/ui/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/unmaintained/lsys/ui/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/lsys/ui/ui.factor b/unmaintained/lsys/ui/ui.factor
similarity index 94%
rename from extra/lsys/ui/ui.factor
rename to unmaintained/lsys/ui/ui.factor
index c3b9190c3c..832f7b9131 100644
--- a/extra/lsys/ui/ui.factor
+++ b/unmaintained/lsys/ui/ui.factor
@@ -16,7 +16,8 @@ USING: kernel namespaces threads math math.order math.vectors
        vars rewrite-closures
        self pos ori turtle opengl.camera
        lsys.tortoise lsys.tortoise.graphics
-       lsys.strings.rewrite lsys.strings.interpret ;
+       lsys.strings.rewrite lsys.strings.interpret
+       combinators.short-circuit accessors ;
 
        ! lsys.strings
        ! lsys.strings.rewrite
@@ -40,7 +41,7 @@ VAR: model
 
 : display ( -- )
 
-black gl-clear
+black set-clear-color GL_COLOR_BUFFER_BIT glClear
 
 GL_FLAT glShadeModel
 
@@ -56,7 +57,9 @@ camera> do-look-at
 
 GL_FRONT_AND_BACK GL_LINE glPolygonMode
 
-white gl-color
+white color>raw glColor4d
+
+! white set-color
 
 GL_LINES glBegin { 0 0 0 } gl-vertex { 0 0 1 } gl-vertex glEnd
 
@@ -98,19 +101,21 @@ DEFER: empty-model
 
 : lsys-controller ( -- )
 
+<pile>
+
 {
 
-[ "Load" <label> dup reverse-video-theme ]
+[ "Load" <label> reverse-video-theme ]
 
 [ "Models" <label> [ drop model-chooser ] closed-quot <bevel-button> ]
 [ "Scenes" <label> [ drop scene-chooser ] closed-quot <bevel-button> ]
 
-[ "Model" <label> dup reverse-video-theme ]
+[ "Model" <label> reverse-video-theme ]
 
 [ "Iterate" <label> [ drop iterate build-model ] closed-quot <bevel-button> ]
 [ "Build model" <label> [ drop build-model ] closed-quot <bevel-button> ]
 
-[ "Camera" <label> dup reverse-video-theme ]
+[ "Camera" <label> reverse-video-theme ]
 
 [ "Turn left" <label> [ 5 turn-left ] camera-action <bevel-button> ]
 [ "Turn right" <label> [ 5 turn-right ] camera-action <bevel-button> ]
@@ -144,16 +149,20 @@ DEFER: empty-model
   [ pos> norm reset-turtle 45 turn-left 45 pitch-up step-turtle 180 turn-left ]
   camera-action <bevel-button> ]
 
-} make*
-[ [ gadget, ] curry ] map concat ! Hack
-make-pile 1 over set-pack-fill "L-system control" open-window ;
+}
+
+[ call add-gadget ] each
+1 >>fill
+"L-system control" open-window ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : lsys-viewer ( -- )
 
 [ ] <slate> >slate
-{ 400 400 } clone slate> set-slate-dim
+{ 400 400 } clone slate> set-slate-pdim
+
+slate> <handler>
 
 {
 
@@ -189,13 +198,9 @@ make-pile 1 over set-pack-fill "L-system control" open-window ;
 [ [ pos> norm reset-turtle 45 turn-left 45 pitch-up step-turtle 180 turn-left ]
     camera-action ] }
 
-! } [ make* ] map alist>hash <handler> >handler
+} [ make* ] map >hashtable >>table
 
-} [ make* ] map >hashtable <handler> >handler
-
-slate> handler> set-gadget-delegate
-
-handler> "L-system view" open-window
+"L-system view" open-window
 
 500 sleep
 
@@ -468,7 +473,7 @@ H{ } >rules ;
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 : model-chooser ( -- )
-
+<pile>
 {
 [ "abop-1" <label> [ drop abop-1 build-model ] closed-quot <bevel-button> ]
 [ "abop-2" <label> [ drop abop-2 build-model ] closed-quot <bevel-button> ]
@@ -480,18 +485,21 @@ H{ } >rules ;
 [ "airhorse" <label> [ drop airhorse build-model ] closed-quot <bevel-button> ]
 [ "spiral-0" <label> [ drop spiral-0 build-model ] closed-quot <bevel-button> ]
 [ "koch" <label> [ drop koch build-model ] closed-quot <bevel-button> ]
-} make*
-[ [ gadget, ] curry ] map concat ! Hack
-make-pile 1 over set-pack-fill "L-system models" open-window ;
+}
+[ call add-gadget ] each
+1 >>fill
+"L-system models" open-window ;
 
 : scene-chooser ( -- )
+<pile>
 {
 [ "abop-1" <label> [ drop abop-1-scene ] closed-quot <bevel-button> ]
 [ "abop-2" <label> [ drop abop-2-scene ] closed-quot <bevel-button> ]
 [ "tree-5" <label> [ drop tree-5-scene ] closed-quot <bevel-button> ]
-} make*
-[ [ gadget, ] curry ] map concat ! Hack
-make-pile 1 over set-pack-fill "L-system scenes" open-window ;
+}
+[ call add-gadget ] each
+1 >>fill
+"L-system scenes" open-window ;
 
 : lsys-window* ( -- )
 [ lsys-controller lsys-viewer ] with-ui ;
diff --git a/extra/peg/search/authors.txt b/unmaintained/lunar-rescue/authors.txt
similarity index 100%
rename from extra/peg/search/authors.txt
rename to unmaintained/lunar-rescue/authors.txt
diff --git a/extra/lunar-rescue/lunar-rescue-docs.factor b/unmaintained/lunar-rescue/lunar-rescue-docs.factor
similarity index 100%
rename from extra/lunar-rescue/lunar-rescue-docs.factor
rename to unmaintained/lunar-rescue/lunar-rescue-docs.factor
diff --git a/extra/lunar-rescue/lunar-rescue.factor b/unmaintained/lunar-rescue/lunar-rescue.factor
similarity index 100%
rename from extra/lunar-rescue/lunar-rescue.factor
rename to unmaintained/lunar-rescue/lunar-rescue.factor
diff --git a/extra/lunar-rescue/summary.txt b/unmaintained/lunar-rescue/summary.txt
similarity index 100%
rename from extra/lunar-rescue/summary.txt
rename to unmaintained/lunar-rescue/summary.txt
diff --git a/extra/balloon-bomber/tags.txt b/unmaintained/lunar-rescue/tags.txt
similarity index 100%
rename from extra/balloon-bomber/tags.txt
rename to unmaintained/lunar-rescue/tags.txt
diff --git a/unmaintained/network-clipboard/network-clipboard.factor b/unmaintained/network-clipboard/network-clipboard.factor
deleted file mode 100755
index 72307f5f7f..0000000000
--- a/unmaintained/network-clipboard/network-clipboard.factor
+++ /dev/null
@@ -1,96 +0,0 @@
-! Copyright (C) 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: io.server io.sockets io strings parser byte-arrays
-namespaces ui.clipboards ui.gadgets.panes ui.gadgets.scrollers
-ui.gadgets.buttons ui.gadgets.tracks ui.gadgets ui.operations
-ui.commands ui kernel splitting combinators continuations
-sequences io.streams.duplex models ;
-IN: network-clipboard
-
-: clipboard-port 4444 ;
-
-: get-request
-    clipboard get clipboard-contents write ;
-
-: contents ( -- str )
-    [ 1024 read dup ] [ ] [ drop ] unfold concat ;
-
-: set-request
-    contents clipboard get set-clipboard-contents ;
-
-: clipboard-server ( -- )
-    clipboard-port internet-server "clip-server" [
-        readln {
-            { "GET" [ get-request ] }
-            { "SET" [ set-request ] }
-        } case
-    ] with-server ;
-
-\ clipboard-server H{
-    { +nullary+ t }
-    { +listener+ t }
-} define-command
-
-: with-client ( addrspec quot -- )
-    >r <client> r> with-stream ; inline
-
-: send-text ( text host -- )
-    clipboard-port <inet4> [ write ] with-client ;
-
-TUPLE: host name ;
-
-C: <host> host
-
-M: string host-name ;
-
-: send-clipboard ( host -- )
-    host-name
-    "SET\n" clipboard get clipboard-contents append swap send-text ;
-
-[ host? ] \ send-clipboard H{ } define-operation
-
-: ask-text ( text host -- text )
-    clipboard-port <inet4>
-    [ write flush contents ] with-client ;
-
-: receive-clipboard ( host -- )
-    host-name
-    "GET\n" swap ask-text
-    clipboard get set-clipboard-contents ;
-
-[ host? ] \ receive-clipboard H{ } define-operation
-
-: hosts. ( seq -- )
-    "Hosts:" print
-    [ dup <host> write-object nl ] each ;
-
-TUPLE: network-clipboard-tool ;
-
-\ network-clipboard-tool "toolbar" f {
-    { f clipboard-server }
-} define-command-map
-
-: <network-clipboard-tool> ( model -- gadget )
-    \ network-clipboard-tool construct-empty [
-        toolbar,
-        [ hosts. ] <pane-control> <scroller> 1 track,
-    ] { 0 1 } build-track ;
-
-SYMBOL: network-clipboards
-
-{ } <model> network-clipboards set-global
-
-: set-network-clipboards ( seq -- )
-    network-clipboards get set-model ;
-
-: add-network-clipboard ( host -- )
-    network-clipboards get [ swap add ] change-model ;
-
-: network-clipboard-tool ( -- )
-    [
-        network-clipboards get
-        <network-clipboard-tool>
-        "Network clipboard" open-window
-    ] with-ui ;
-
-MAIN: network-clipboard-tool
diff --git a/extra/space-invaders/authors.txt b/unmaintained/ogg/authors.txt
similarity index 100%
rename from extra/space-invaders/authors.txt
rename to unmaintained/ogg/authors.txt
diff --git a/extra/ogg/ogg.factor b/unmaintained/ogg/ogg.factor
similarity index 100%
rename from extra/ogg/ogg.factor
rename to unmaintained/ogg/ogg.factor
diff --git a/unmaintained/ogg/player/authors.txt b/unmaintained/ogg/player/authors.txt
new file mode 100644
index 0000000000..44b06f94bc
--- /dev/null
+++ b/unmaintained/ogg/player/authors.txt
@@ -0,0 +1 @@
+Chris Double
diff --git a/extra/ogg/player/player.factor b/unmaintained/ogg/player/player.factor
similarity index 100%
rename from extra/ogg/player/player.factor
rename to unmaintained/ogg/player/player.factor
diff --git a/extra/ogg/player/summary.txt b/unmaintained/ogg/player/summary.txt
similarity index 100%
rename from extra/ogg/player/summary.txt
rename to unmaintained/ogg/player/summary.txt
diff --git a/extra/ogg/player/tags.txt b/unmaintained/ogg/player/tags.txt
similarity index 100%
rename from extra/ogg/player/tags.txt
rename to unmaintained/ogg/player/tags.txt
diff --git a/extra/ogg/summary.txt b/unmaintained/ogg/summary.txt
similarity index 100%
rename from extra/ogg/summary.txt
rename to unmaintained/ogg/summary.txt
diff --git a/extra/ogg/tags.txt b/unmaintained/ogg/tags.txt
similarity index 100%
rename from extra/ogg/tags.txt
rename to unmaintained/ogg/tags.txt
diff --git a/unmaintained/ogg/theora/authors.txt b/unmaintained/ogg/theora/authors.txt
new file mode 100644
index 0000000000..44b06f94bc
--- /dev/null
+++ b/unmaintained/ogg/theora/authors.txt
@@ -0,0 +1 @@
+Chris Double
diff --git a/extra/ogg/theora/summary.txt b/unmaintained/ogg/theora/summary.txt
similarity index 100%
rename from extra/ogg/theora/summary.txt
rename to unmaintained/ogg/theora/summary.txt
diff --git a/extra/ogg/theora/tags.txt b/unmaintained/ogg/theora/tags.txt
similarity index 100%
rename from extra/ogg/theora/tags.txt
rename to unmaintained/ogg/theora/tags.txt
diff --git a/extra/ogg/theora/theora.factor b/unmaintained/ogg/theora/theora.factor
similarity index 100%
rename from extra/ogg/theora/theora.factor
rename to unmaintained/ogg/theora/theora.factor
diff --git a/unmaintained/ogg/vorbis/authors.txt b/unmaintained/ogg/vorbis/authors.txt
new file mode 100644
index 0000000000..44b06f94bc
--- /dev/null
+++ b/unmaintained/ogg/vorbis/authors.txt
@@ -0,0 +1 @@
+Chris Double
diff --git a/extra/ogg/vorbis/summary.txt b/unmaintained/ogg/vorbis/summary.txt
similarity index 100%
rename from extra/ogg/vorbis/summary.txt
rename to unmaintained/ogg/vorbis/summary.txt
diff --git a/extra/ogg/vorbis/tags.txt b/unmaintained/ogg/vorbis/tags.txt
similarity index 100%
rename from extra/ogg/vorbis/tags.txt
rename to unmaintained/ogg/vorbis/tags.txt
diff --git a/extra/ogg/vorbis/vorbis.factor b/unmaintained/ogg/vorbis/vorbis.factor
similarity index 100%
rename from extra/ogg/vorbis/vorbis.factor
rename to unmaintained/ogg/vorbis/vorbis.factor
diff --git a/extra/pango/cairo/cairo.factor b/unmaintained/pango/cairo/cairo.factor
similarity index 75%
rename from extra/pango/cairo/cairo.factor
rename to unmaintained/pango/cairo/cairo.factor
index 889052c385..1ff5328ee0 100644
--- a/extra/pango/cairo/cairo.factor
+++ b/unmaintained/pango/cairo/cairo.factor
@@ -4,12 +4,13 @@
 ! pangocairo bindings, from pango/pangocairo.h
 USING: cairo.ffi alien.c-types math
 alien.syntax system combinators alien
+memoize
 arrays pango pango.fonts ;
 IN: pango.cairo
 
 << "pangocairo" {
-!    { [ os winnt? ] [ "libpangocairo-1.dll" ] }
-!    { [ os macosx? ] [ "libpangocairo.dylib" ] }
+    { [ os winnt? ] [ "libpangocairo-1.0-0.dll" ] }
+    { [ os macosx? ] [ "libpangocairo-1.0.0.dylib" ] }
     { [ os unix? ] [ "libpangocairo-1.0.so" ] }
 } cond "cdecl" add-library >>
 
@@ -92,40 +93,26 @@ pango_cairo_error_underline_path ( cairo_t* cr, double x, double y, double width
 ! Higher level words and combinators
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-USING: destructors accessors namespaces kernel cairo ;
-
-TUPLE: pango-layout alien ;
-C: <pango-layout> pango-layout
-M: pango-layout dispose ( alien -- ) alien>> g_object_unref ;
-
-: layout ( -- pango-layout ) pango-layout get ;
+USING: pango.layouts
+destructors accessors namespaces kernel cairo ;
 
 : (with-pango) ( layout quot -- )
     >r alien>> pango-layout r> with-variable ; inline
 
-: with-pango ( quot -- )
-    cr pango_cairo_create_layout <pango-layout> swap
-    [ (with-pango) ] curry with-disposal ; inline
+: with-pango-cairo ( quot -- )
+    cr pango_cairo_create_layout swap with-layout ; inline
 
-: pango-layout-get-pixel-size ( layout -- width height )
-    0 <int> 0 <int> [ pango_layout_get_pixel_size ] 2keep
-    [ *int ] bi@ ;
+MEMO: dummy-cairo ( -- cr )
+    CAIRO_FORMAT_ARGB32 0 0 cairo_image_surface_create cairo_create ;
 
 : dummy-pango ( quot -- )
-    >r CAIRO_FORMAT_ARGB32 0 0 cairo_image_surface_create
-    r> [ with-pango ] curry with-cairo-from-surface ; inline
+    >r dummy-cairo cairo r> [ with-pango-cairo ] curry with-variable ; inline
 
 : layout-size ( quot -- dim )
     [ layout pango-layout-get-pixel-size 2array ] compose dummy-pango ; inline
 
-: layout-font ( str -- )
-    pango_font_description_from_string
-    dup zero? [ "pango: not a valid font." throw ] when
-    layout over pango_layout_set_font_description
-    pango_font_description_free ;
-
-: layout-text ( str -- )
-    layout swap -1 pango_layout_set_text ;
+: show-layout ( -- )
+    cr layout pango_cairo_show_layout ;
 
 : families ( -- families )
     pango_cairo_font_map_get_default list-families ;
diff --git a/unmaintained/pango/cairo/gadgets/gadgets.factor b/unmaintained/pango/cairo/gadgets/gadgets.factor
new file mode 100644
index 0000000000..a21affc364
--- /dev/null
+++ b/unmaintained/pango/cairo/gadgets/gadgets.factor
@@ -0,0 +1,27 @@
+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license.
+USING: pango.cairo pango.gadgets
+cairo.gadgets arrays namespaces
+fry accessors ui.gadgets
+sequences opengl.gadgets
+kernel pango.layouts ;
+
+IN: pango.cairo.gadgets
+
+TUPLE: pango-cairo-gadget < pango-gadget ;
+
+SINGLETON: pango-cairo-backend
+pango-cairo-backend pango-backend set-global
+
+M: pango-cairo-backend construct-pango
+    pango-cairo-gadget construct-gadget ;
+
+: setup-layout ( gadget -- quot )
+    [ font>> ] [ text>> ] bi
+    '[ , layout-font , layout-text ] ; inline
+
+M: pango-cairo-gadget render* ( gadget -- ) 
+    setup-layout [ layout-size dup ]
+    [ 
+        '[ [ @ show-layout ] with-pango-cairo ]
+    ] bi render-cairo render-bytes* ;
diff --git a/unmaintained/pango/cairo/samples/samples.factor b/unmaintained/pango/cairo/samples/samples.factor
new file mode 100644
index 0000000000..f081650943
--- /dev/null
+++ b/unmaintained/pango/cairo/samples/samples.factor
@@ -0,0 +1,18 @@
+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license.
+USING: prettyprint sequences ui.gadgets.panes
+pango.cairo.gadgets math kernel cairo cairo.ffi
+pango.cairo pango.gadgets tools.time namespaces assocs
+threads io.backend io.encodings.utf8 io.files ;
+
+IN: pango.cairo.samples
+
+: hello-pango ( -- )
+    "monospace 10" "resource:extra/pango/cairo/gadgets/gadgets.factor"
+    normalize-path utf8 file-contents
+    <pango> gadget. ;
+
+: time-pango ( -- )
+    [ hello-pango ] time ;
+
+MAIN: time-pango
diff --git a/extra/pango/fonts/fonts.factor b/unmaintained/pango/fonts/fonts.factor
similarity index 100%
rename from extra/pango/fonts/fonts.factor
rename to unmaintained/pango/fonts/fonts.factor
diff --git a/unmaintained/pango/ft2/ft2.factor b/unmaintained/pango/ft2/ft2.factor
new file mode 100644
index 0000000000..bb34bdd058
--- /dev/null
+++ b/unmaintained/pango/ft2/ft2.factor
@@ -0,0 +1,56 @@
+USING: alien alien.c-types
+math kernel byte-arrays freetype
+opengl.gadgets accessors pango
+ui.gadgets memoize
+arrays sequences libc opengl.gl
+system combinators alien.syntax
+pango.layouts ;
+IN: pango.ft2
+
+<< "pangoft2" {
+    { [ os winnt? ] [ "libpangocairo-1.0-0.dll" ] }
+    { [ os macosx? ] [ "libpangocairo-1.0.0.dylib" ] }
+    { [ os unix? ] [ "libpangoft2-1.0.so" ] }
+} cond "cdecl" add-library >>
+
+LIBRARY: pangoft2
+
+FUNCTION: PangoFontMap*
+pango_ft2_font_map_new ( ) ;
+
+FUNCTION: PangoContext*
+pango_ft2_font_map_create_context ( PangoFT2FontMap* fontmap ) ;
+
+FUNCTION: void
+pango_ft2_render_layout ( FT_Bitmap* bitmap, PangoLayout* layout, int x, int y ) ;
+
+: 4*-ceil ( n -- k*4 )
+    3 + 4 /i 4 * ;
+
+: <ft-bitmap> ( width height -- ft-bitmap )
+    swap dup
+    2dup * 4*-ceil
+    "uchar" malloc-array
+    256
+    FT_PIXEL_MODE_GRAY
+    "FT_Bitmap" <c-object> dup >r
+    {
+        [ set-FT_Bitmap-pixel_mode ]
+        [ set-FT_Bitmap-num_grays  ]
+        [ set-FT_Bitmap-buffer     ]
+        [ set-FT_Bitmap-pitch      ]
+        [ set-FT_Bitmap-width      ]
+        [ set-FT_Bitmap-rows       ]
+    } cleave r> ;
+
+: render-layout ( layout -- dims alien )
+    [ 
+        pango-layout-get-pixel-size
+        2array dup 2^-bounds first2 <ft-bitmap> dup
+    ] [ 0 0 pango_ft2_render_layout ] bi FT_Bitmap-buffer ;
+
+MEMO: ft2-context ( -- PangoContext* )
+    pango_ft2_font_map_new pango_ft2_font_map_create_context ;
+
+: with-ft2-layout ( quot -- )
+    ft2-context pango_layout_new swap with-layout ; inline
diff --git a/unmaintained/pango/ft2/gadgets/gadgets.factor b/unmaintained/pango/ft2/gadgets/gadgets.factor
new file mode 100644
index 0000000000..43ddc954ee
--- /dev/null
+++ b/unmaintained/pango/ft2/gadgets/gadgets.factor
@@ -0,0 +1,20 @@
+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license.
+USING: pango.ft2 pango.gadgets opengl.gadgets
+accessors kernel opengl.gl libc
+sequences namespaces ui.gadgets pango.layouts ;
+IN: pango.ft2.gadgets
+
+TUPLE: pango-ft2-gadget < pango-gadget ;
+
+SINGLETON: pango-ft2-backend
+pango-ft2-backend pango-backend set-global
+
+M: pango-ft2-backend construct-pango
+    pango-ft2-gadget construct-gadget ;
+
+M: pango-ft2-gadget render*
+    [
+        [ text>> layout-text ] [ font>> layout-font ] bi
+        layout render-layout
+    ] with-ft2-layout [ GL_ALPHA render-bytes* ] keep free ;
diff --git a/unmaintained/pango/gadgets/gadgets.factor b/unmaintained/pango/gadgets/gadgets.factor
new file mode 100644
index 0000000000..f9442a4613
--- /dev/null
+++ b/unmaintained/pango/gadgets/gadgets.factor
@@ -0,0 +1,19 @@
+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license.
+USING: opengl.gadgets kernel
+arrays
+accessors ;
+
+IN: pango.gadgets
+
+TUPLE: pango-gadget < texture-gadget text font ;
+
+M: pango-gadget cache-key* [ font>> ] [ text>> ] bi 2array ;
+
+SYMBOL: pango-backend
+HOOK: construct-pango pango-backend ( -- gadget )
+
+: <pango> ( font text -- gadget )
+    construct-pango
+        swap >>text
+        swap >>font ;
diff --git a/unmaintained/pango/layouts/layouts.factor b/unmaintained/pango/layouts/layouts.factor
new file mode 100644
index 0000000000..71317ce552
--- /dev/null
+++ b/unmaintained/pango/layouts/layouts.factor
@@ -0,0 +1,30 @@
+USING: alien alien.c-types 
+math
+destructors accessors namespaces
+pango kernel ;
+IN: pango.layouts
+
+: pango-layout-get-pixel-size ( layout -- width height )
+    0 <int> 0 <int> [ pango_layout_get_pixel_size ] 2keep
+    [ *int ] bi@ ;
+
+TUPLE: pango-layout alien ;
+C: <pango-layout> pango-layout
+M: pango-layout dispose ( alien -- ) alien>> g_object_unref ;
+
+: layout ( -- pango-layout ) pango-layout get ;
+
+: (with-layout) ( pango-layout quot -- )
+    >r alien>> pango-layout r> with-variable ; inline
+
+: with-layout ( layout quot -- )
+    >r <pango-layout> r> [ (with-layout) ] curry with-disposal ; inline
+
+: layout-font ( str -- )
+    pango_font_description_from_string
+    dup zero? [ "pango: not a valid font." throw ] when
+    layout over pango_layout_set_font_description
+    pango_font_description_free ;
+
+: layout-text ( str -- )
+    layout swap -1 pango_layout_set_text ;
diff --git a/extra/pango/pango.factor b/unmaintained/pango/pango.factor
similarity index 90%
rename from extra/pango/pango.factor
rename to unmaintained/pango/pango.factor
index 3549d9abb4..be5c257cb0 100644
--- a/extra/pango/pango.factor
+++ b/unmaintained/pango/pango.factor
@@ -9,8 +9,8 @@ IN: pango
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 << "pango" {
-!    { [ os winnt? ] [ "libpango-1.dll" ] }
-!    { [ os macosx? ] [ "libpango.dylib" ] }
+    { [ os winnt? ] [ "libpango-1.0-0.dll" ] }
+    { [ os macosx? ] [ "libpango-1.0.0.dylib" ] }
     { [ os unix? ] [ "libpango-1.0.so" ] }
 } cond "cdecl" add-library >>
 
@@ -18,6 +18,9 @@ LIBRARY: pango
 
 : PANGO_SCALE 1024 ;
 
+FUNCTION: PangoLayout*
+pango_layout_new ( PangoContext* context ) ;
+
 FUNCTION: void
 pango_layout_set_text ( PangoLayout* layout, char* text, int length ) ;
 
diff --git a/unmaintained/random-tester/random-tester.factor b/unmaintained/random-tester/random-tester.factor
index 7fb1714860..cbf9f52fa6 100755
--- a/unmaintained/random-tester/random-tester.factor
+++ b/unmaintained/random-tester/random-tester.factor
@@ -1,18 +1,21 @@
 USING: compiler continuations io kernel math namespaces
 prettyprint quotations random sequences vectors
 compiler.units ;
-USING: random-tester.databank random-tester.safe-words ;
+USING: random-tester.databank random-tester.safe-words
+random-tester.random ;
 IN: random-tester
 
 SYMBOL: errored
 SYMBOL: before
 SYMBOL: after
 SYMBOL: quot
-TUPLE: random-tester-error ;
+ERROR: random-tester-error ;
 
 : setup-test ( #data #code -- data... quot )
     #! Variable stack effect
     >r [ databank random ] times r>
+    ! 200 300 random-cond ;
+    ! random-if ;
     [ drop \ safe-words get random ] map >quotation ;
 
 : test-compiler ! ( data... quot -- ... )
@@ -35,7 +38,7 @@ TUPLE: random-tester-error ;
             "--" print
             [ . ] each
             quot get .
-            random-tester-error construct-empty throw
+            random-tester-error
         ] if
     ] unless clear ;
 
diff --git a/unmaintained/random-tester/random/random.factor b/unmaintained/random-tester/random/random.factor
index 11f2e60d1a..7bedcb8cec 100755
--- a/unmaintained/random-tester/random/random.factor
+++ b/unmaintained/random-tester/random/random.factor
@@ -1,6 +1,7 @@
 USING: kernel math sequences namespaces hashtables words
-arrays parser compiler syntax io prettyprint optimizer
-random math.constants math.functions layouts random-tester.utils ;
+arrays parser compiler syntax io prettyprint random
+math.constants math.functions layouts random-tester.utils
+random-tester.safe-words quotations fry combinators ;
 IN: random-tester
 
 ! Tweak me
@@ -72,3 +73,14 @@ IN: random-tester
 : random-complex ( -- C )
     random-number random-number rect> ;
 
+: random-quot ( n -- quot )
+    [ \ safe-words get random ] replicate >quotation ;
+
+: random-if ( n -- quot )
+    [ random-quot ] [ random-quot ] bi
+    '[ , , if ] ;
+
+: random-cond ( m n -- quot )
+    [ '[ , [ random-quot ] [ random-quot ] bi 2array ] replicate ] 
+    [ random-quot ] bi suffix 
+    '[ , cond ] ; 
diff --git a/unmaintained/random-tester/safe-words/safe-words.factor b/unmaintained/random-tester/safe-words/safe-words.factor
index 5ca2c79afe..77e5562f4d 100755
--- a/unmaintained/random-tester/safe-words/safe-words.factor
+++ b/unmaintained/random-tester/safe-words/safe-words.factor
@@ -1,11 +1,11 @@
-USING: kernel namespaces sequences sorting vocabs ;
-USING: arrays assocs generic hashtables  math math.intervals math.parser math.functions refs shuffle vectors words ;
+USING: kernel namespaces sequences sets sorting vocabs ;
+USING: arrays assocs generic hashtables 
+math math.intervals math.parser math.order math.functions
+refs shuffle vectors words ;
 IN: random-tester.safe-words
 
 : ?-words
     {
-        delegate
-
         /f
 
         bits>float bits>double
@@ -16,7 +16,11 @@ IN: random-tester.safe-words
         array? integer? complex? value-ref? ref? key-ref?
         interval? number?
         wrapper? tuple?
-        [-1,1]? between? bignum? both? either? eq? equal? even? fixnum? float? fp-nan? hashtable? interval-contains? interval-subset? interval? key-ref? key? number? odd? pair? power-of-2? ratio? rational? real? subassoc? zero? assoc? curry? vector? callstack? ! clear 3.14 [ <vector> assoc? ] compile-1
+        [-1,1]? between? bignum? both? either? eq? equal? even? fixnum?
+        float? fp-nan? hashtable? interval-contains? interval-subset?
+        interval? key-ref? key? number? odd? pair? power-of-2?
+        ratio? rational? real? zero? assoc? curry? vector? callstack?
+
         2^ not
         ! arrays
         resize-array <array>
@@ -64,6 +68,9 @@ IN: random-tester.safe-words
         retainstack callstack
         datastack
         callstack>array
+
+        curry 2curry 3curry compose 3compose
+        (assoc-each)
     } ;
 
 : exit-words
@@ -83,28 +90,31 @@ IN: random-tester.safe-words
     ] { } make ;
 
 : safe-words ( -- array )
-    bad-words {
-        "alists" "arrays" "assocs" ! "bit-arrays" "byte-arrays"
+    {
+        ! "accessors"
+        "alists" "arrays" "assocs" "bit-arrays" "byte-arrays"
         ! "classes" "combinators" "compiler" "continuations"
         ! "core-foundation" "definitions" "documents"
         ! "float-arrays" "generic" "graphs" "growable"
         "hashtables"  ! io.*
-        "kernel" "math" 
+        "kernel" "math"
         "math.bitfields" "math.complex" "math.constants" "math.floats"
         "math.functions" "math.integers" "math.intervals" "math.libm"
-        "math.parser" "math.ratios" "math.vectors"
-        ! "namespaces" "quotations" "sbufs"
+        "math.parser" "math.order" "math.ratios" "math.vectors"
+        ! "namespaces"
+        "quotations" "sbufs"
         ! "queues" "strings" "sequences"
+        "sets"
         "vectors"
         ! "words"
-    } [ words ] map concat seq-diff natural-sort ;
+    } [ words ] map concat bad-words diff natural-sort ;
     
 safe-words \ safe-words set-global
 
 ! foo dup (clone) = .
 ! foo dup clone = .
 ! f [ byte-array>bignum assoc-clone-like ] compile-1
-! 2 3.14 [ construct-empty number= ] compile-1
+! 2 3.14 [ number= ] compile-1
 ! 3.14 [ <vector> assoc? ] compile-1
 ! -3 [ ] 2 [ byte-array>bignum denominator ] compile-1
-
+! : foo ( x -- y ) euler bitand ; { foo } compile 20 foo
diff --git a/unmaintained/regexp2/regexp2-tests.factor b/unmaintained/regexp2/regexp2-tests.factor
deleted file mode 100644
index 1fb3f61f29..0000000000
--- a/unmaintained/regexp2/regexp2-tests.factor
+++ /dev/null
@@ -1,5 +0,0 @@
-USING: kernel peg regexp2 sequences tools.test ;
-IN: regexp2.tests
-
-[ T{ parse-result f T{ slice f 3 3 "056" } 46 } ]
-    [ "056" 'octal' parse ] unit-test
diff --git a/unmaintained/regexp2/regexp2.factor b/unmaintained/regexp2/regexp2.factor
deleted file mode 100644
index f7023c74bf..0000000000
--- a/unmaintained/regexp2/regexp2.factor
+++ /dev/null
@@ -1,262 +0,0 @@
-USING: assocs combinators.lib kernel math math.parser
-namespaces peg unicode.case sequences unicode.categories
-memoize peg.parsers math.order ;
-USE: io
-USE: tools.walker
-IN: regexp2
-
-<PRIVATE
-    
-SYMBOL: ignore-case?
-
-: char=-quot ( ch -- quot )
-    ignore-case? get
-    [ ch>upper [ swap ch>upper = ] ] [ [ = ] ] if
-    curry ;
-    
-: char-between?-quot ( ch1 ch2 -- quot )
-    ignore-case? get
-    [ [ ch>upper ] bi@ [ >r >r ch>upper r> r> between? ] ]
-    [ [ between? ] ]
-    if 2curry ;
-    
-: or-predicates ( quots -- quot )
-    [ \ dup prefix ] map [ [ t ] ] f short-circuit \ nip suffix ;
-
-: literal-action [ nip ] curry action ;
-
-: delay-action [ curry ] curry action ;
-    
-PRIVATE>
-
-: ascii? ( n -- ? )
-    0 HEX: 7f between? ;
-    
-: octal-digit? ( n -- ? ) 
-    CHAR: 0 CHAR: 7 between? ;
-
-: hex-digit? ( n -- ? )
-    {
-        [ dup digit? ]
-        [ dup CHAR: a CHAR: f between? ]
-        [ dup CHAR: A CHAR: F between? ]
-    } || nip ;
-
-: control-char? ( n -- ? )
-    { [ dup 0 HEX: 1f between? ] [ dup HEX: 7f = ] } || nip ;
-
-: punct? ( n -- ? )
-    "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" member? ;
-
-: c-identifier-char? ( ch -- ? )
-    { [ dup alpha? ] [ dup CHAR: _ = ] } || nip ;
-
-: java-blank? ( n -- ? )
-    {
-        CHAR: \s
-        CHAR: \t CHAR: \n CHAR: \r
-        HEX: c HEX: 7 HEX: 1b
-    } member? ;
-
-: java-printable? ( n -- ? )
-    { [ dup alpha? ] [ dup punct? ] } || nip ;
-
-MEMO: 'ordinary-char' ( -- parser )
-    [ "\\^*+?|(){}[$" member? not ] satisfy
-    [ char=-quot ] action ;
-
-MEMO: 'octal-digit' ( -- parser ) [ octal-digit? ] satisfy ;
-
-MEMO: 'octal' ( -- parser )
-    "0" token hide 'octal-digit' 1 3 from-m-to-n 2seq
-    [ first oct> ] action ;
-
-MEMO: 'hex-digit' ( -- parser ) [ hex-digit? ] satisfy ;
-
-MEMO: 'hex' ( -- parser )
-    "x" token hide 'hex-digit' 2 exactly-n 2seq
-    "u" token hide 'hex-digit' 6 exactly-n 2seq 2choice
-    [ first hex> ] action ;
-
-: satisfy-tokens ( assoc -- parser )
-    [ >r token r> literal-action ] { } assoc>map choice ;
-
-MEMO: 'simple-escape-char' ( -- parser )
-    {
-        { "\\" CHAR: \\ }
-        { "t"  CHAR: \t }
-        { "n"  CHAR: \n }
-        { "r"  CHAR: \r }
-        { "f"  HEX: c   }
-        { "a"  HEX: 7   }
-        { "e"  HEX: 1b  }
-    } [ char=-quot ] assoc-map satisfy-tokens ;
-
-MEMO: 'predefined-char-class' ( -- parser )
-    {   
-        { "d" [ digit? ] } 
-        { "D" [ digit? not ] }
-        { "s" [ java-blank? ] } 
-        { "S" [ java-blank? not ] }
-        { "w" [ c-identifier-char? ] } 
-        { "W" [ c-identifier-char? not ] }
-    } satisfy-tokens ;
-
-MEMO: 'posix-character-class' ( -- parser )
-    {   
-        { "Lower" [ letter? ] }
-        { "Upper" [ LETTER? ] }
-        { "ASCII" [ ascii? ] }
-        { "Alpha" [ Letter? ] }
-        { "Digit" [ digit? ] }
-        { "Alnum" [ alpha? ] }
-        { "Punct" [ punct? ] }
-        { "Graph" [ java-printable? ] }
-        { "Print" [ java-printable? ] }
-        { "Blank" [ " \t" member? ] }
-        { "Cntrl" [ control-char? ] }
-        { "XDigit" [ hex-digit? ] }
-        { "Space" [ java-blank? ] }
-    } satisfy-tokens "p{" "}" surrounded-by ;
-
-MEMO: 'simple-escape' ( -- parser )
-    [
-        'octal' ,
-        'hex' ,
-        "c" token hide [ LETTER? ] satisfy 2seq ,
-        any-char ,
-    ] choice* [ char=-quot ] action ;
-
-MEMO: 'escape' ( -- parser )
-    "\\" token hide [
-        'simple-escape-char' ,
-        'predefined-char-class' ,
-        'posix-character-class' ,
-        'simple-escape' ,
-    ] choice* 2seq ;
-
-MEMO: 'any-char' ( -- parser )
-    "." token [ drop t ] literal-action ;
-
-MEMO: 'char' ( -- parser )
-    'any-char' 'escape' 'ordinary-char' 3choice [ satisfy ] action ;
-
-DEFER: 'regexp'
-
-TUPLE: group-result str ;
-
-C: <group-result> group-result
-
-MEMO: 'non-capturing-group' ( -- parser )
-    "?:" token hide 'regexp' ;
-
-MEMO: 'positive-lookahead-group' ( -- parser )
-    "?=" token hide 'regexp' [ ensure ] action ;
-
-MEMO: 'negative-lookahead-group' ( -- parser )
-    "?!" token hide 'regexp' [ ensure-not ] action ;
-
-MEMO: 'simple-group' ( -- parser )
-    'regexp' [ [ <group-result> ] action ] action ;
-
-MEMO: 'group' ( -- parser )
-    [
-        'non-capturing-group' ,
-        'positive-lookahead-group' ,
-        'negative-lookahead-group' ,
-        'simple-group' ,
-    ] choice* "(" ")" surrounded-by ;
-
-MEMO: 'range' ( -- parser )
-    any-char "-" token hide any-char 3seq
-    [ first2 char-between?-quot ] action ;
-
-MEMO: 'character-class-term' ( -- parser )
-    'range'
-    'escape'
-    [ "\\]" member? not ] satisfy [ char=-quot ] action
-    3choice ;
-
-MEMO: 'positive-character-class' ( -- parser )
-    ! todo
-    "]" token [ CHAR: ] = ] literal-action 'character-class-term' repeat0 2seq 
-    'character-class-term' repeat1 2choice [ or-predicates ] action ;
-
-MEMO: 'negative-character-class' ( -- parser )
-    "^" token hide 'positive-character-class' 2seq
-    [ [ not ] append ] action ;
-
-MEMO: 'character-class' ( -- parser )
-    'negative-character-class' 'positive-character-class' 2choice
-    "[" "]" surrounded-by [ satisfy ] action ;
-
-MEMO: 'escaped-seq' ( -- parser )
-    any-char repeat1
-    [ ignore-case? get token ] action "\\Q" "\\E" surrounded-by ;
-    
-MEMO: 'break' ( quot -- parser )
-    satisfy ensure
-    epsilon just 2choice ;
-    
-MEMO: 'break-escape' ( -- parser )
-    "$" token [ "\r\n" member? ] 'break' literal-action
-    "\\b" token [ blank? ] 'break' literal-action
-    "\\B" token [ blank? not ] 'break' literal-action
-    "\\z" token epsilon just literal-action 4choice ;
-    
-MEMO: 'simple' ( -- parser )
-    [
-        'escaped-seq' ,
-        'break-escape' ,
-        'group' ,
-        'character-class' ,
-        'char' ,
-    ] choice* ;
-
-MEMO: 'exactly-n' ( -- parser )
-    'integer' [ exactly-n ] delay-action ;
-
-MEMO: 'at-least-n' ( -- parser )
-    'integer' "," token hide 2seq [ at-least-n ] delay-action ;
-
-MEMO: 'at-most-n' ( -- parser )
-    "," token hide 'integer' 2seq [ at-most-n ] delay-action ;
-
-MEMO: 'from-m-to-n' ( -- parser )
-    'integer' "," token hide 'integer' 3seq
-    [ first2 from-m-to-n ] delay-action ;
-
-MEMO: 'greedy-interval' ( -- parser )
-    'exactly-n' 'at-least-n' 'at-most-n' 'from-m-to-n' 4choice ;
-
-MEMO: 'interval' ( -- parser )
-    'greedy-interval'
-    'greedy-interval' "?" token hide 2seq [ "reluctant {}" print ] action
-    'greedy-interval' "+" token hide 2seq [ "possessive {}" print ] action
-    3choice "{" "}" surrounded-by ;
-
-MEMO: 'repetition' ( -- parser )
-    [
-        ! Possessive
-        ! "*+" token [ <!*> ] literal-action ,
-        ! "++" token [ <!+> ] literal-action ,
-        ! "?+" token [ <!?> ] literal-action ,
-        ! Reluctant
-        ! "*?" token [ <(*)> ] literal-action ,
-        ! "+?" token [ <(+)> ] literal-action ,
-        ! "??" token [ <(?)> ] literal-action ,
-        ! Greedy
-        "*" token [ repeat0 ] literal-action ,
-        "+" token [ repeat1 ] literal-action ,
-        "?" token [ optional ] literal-action ,
-    ] choice* ;
-
-MEMO: 'dummy' ( -- parser )
-    epsilon [ ] literal-action ;
-
-! todo -- check the action
-! MEMO: 'term' ( -- parser )
-    ! 'simple'
-    ! 'repetition' 'interval' 'dummy' 3choice 2seq [ first2 call ] action
-    ! <!+> [ <and-parser> ] action ;
-
diff --git a/unmaintained/regexp4/regexp4.factor b/unmaintained/regexp4/regexp4.factor
deleted file mode 100644
index fac6673e82..0000000000
--- a/unmaintained/regexp4/regexp4.factor
+++ /dev/null
@@ -1,712 +0,0 @@
-! Copyright (C) 2008 Doug Coleman.
-! See http://factorcode.org/license.txt for BSD license.
-USING: accessors arrays assocs combinators kernel math
-sequences namespaces locals combinators.lib state-tables
-math.parser state-parser sets dlists unicode.categories
-math.order quotations shuffle math.ranges splitting
-symbols fry parser math.ranges inspector strings ;
-IN: regexp4
-
-SYMBOLS: eps start-state final-state beginning-of-text
-end-of-text left-parenthesis alternation left-bracket
-caret dash ampersand colon ;
-
-SYMBOL: runtime-epsilon
-
-TUPLE: regexp raw parentheses-count bracket-count
-state stack nfa new-states dfa minimized-dfa
-dot-matches-newlines? capture-group captured-groups ;
-
-TUPLE: capture-group n range ;
-
-ERROR: parentheses-underflow ;
-ERROR: unbalanced-parentheses ;
-ERROR: unbalanced-brackets ;
-
-: push-stack ( regexp token -- ) swap stack>> push ;
-: push-all-stack ( regexp seq -- ) swap stack>> push-all ;
-: next-state ( regexp -- n ) [ 1+ ] change-state state>> ;
-
-: check-parentheses-underflow ( regexp -- )
-    parentheses-count>> 0 < [ parentheses-underflow ] when ;
-
-: check-unbalanced-parentheses ( regexp -- )
-    parentheses-count>> 0 > [ unbalanced-parentheses ] when ;
-
-:: (apply-alternation) ( stack regexp -- )
-    [let | s2 [ stack peek first ]
-           s3 [ stack pop second ]
-           s0 [ stack peek alternation = [ stack pop* ] when stack peek first ]
-           s1 [ stack pop second ]
-           s4 [ regexp next-state ]
-           s5 [ regexp next-state ]
-           table [ regexp nfa>> ] |
-        s5 table add-row
-        s4 eps s0 <entry> table add-entry
-        s4 eps s2 <entry> table add-entry
-        s1 eps s5 <entry> table add-entry
-        s3 eps s5 <entry> table add-entry
-        s1 table final-states>> delete-at
-        s3 table final-states>> delete-at
-        t s5 table final-states>> set-at
-        s4 s5 2array stack push ] ;
-
-: apply-alternation ( regexp -- )
-    [ stack>> ] [ (apply-alternation) ] bi ;
-
-: apply-alternation? ( stack -- ? )
-    dup length dup 3 <
-    [ 2drop f ] [ 2 - swap nth alternation = ] if ;
-
-:: (apply-concatenation) ( stack regexp -- )
-    [let* |
-            s2 [ stack peek first ]
-            s3 [ stack pop second ]
-            s0 [ stack peek first ]
-            s1 [ stack pop second ]
-            table [ regexp nfa>> ] |
-        s1 eps s2 <entry> table set-entry
-        s1 table final-states>> delete-at
-        s3 table add-row
-        s0 s3 2array stack push ] ;
-
-: apply-concatenation ( regexp -- )
-    [ stack>> ] [ (apply-concatenation) ] bi ;
-
-: apply-concatenation? ( seq -- ? )
-    dup length dup 2 <
-    [ 2drop f ] [ 2 - swap nth array? ] if ;
-
-: apply-loop ( seq regexp -- seq regexp )
-    over length 1 > [
-        2dup over apply-alternation?
-        [ (apply-alternation) ] [ (apply-concatenation) ] if apply-loop
-    ] when ;
-
-: cut-out ( vector n -- vector' vector ) cut rest ;
-
-: cut-stack ( obj vector -- vector' vector )
-    tuck last-index cut-out swap ;
-    
-: apply-til-last ( regexp token -- )
-    swap [ cut-stack ] change-stack
-    apply-loop stack>> push-all ;
-
-: concatenation-loop ( regexp -- )
-    dup stack>> dup apply-concatenation?
-    [ over (apply-concatenation) concatenation-loop ] [ 2drop ] if ;
-
-:: apply-kleene-closure ( regexp -- )
-    [let* | stack [ regexp stack>> ]
-            s0 [ stack peek first ]
-            s1 [ stack pop second ]
-            s2 [ regexp next-state ]
-            s3 [ regexp next-state ]
-            table [ regexp nfa>> ] |
-        s1 table final-states>> delete-at
-        t s3 table final-states>> set-at
-        s3 table add-row
-        s1 eps s0 <entry> table add-entry
-        s2 eps s0 <entry> table add-entry
-        s2 eps s3 <entry> table add-entry
-        s1 eps s3 <entry> table add-entry
-        s2 s3 2array stack push ] ;
-
-: add-numbers ( n obj -- obj )
-    2dup [ number? ] bi@ and
-    [ + ] [ dup sequence? [ [ + ] with map ] [ nip ] if ] if ;
-
-: increment-columns ( n assoc -- )
-    dup [ >r swap >r add-numbers r> r> set-at ] curry with* assoc-each ;
-
-:: copy-state-rows ( regexp range -- )
-    [let* | len [ range range-length ]
-            offset [ regexp state>> range range-min - 1+ ]
-            state [ regexp [ len + ] change-state ] |
-        regexp nfa>> rows>>
-        [ drop range member? ] assoc-filter
-        [
-            [ offset + ] dip
-            [ offset swap add-numbers ] assoc-map
-        ] assoc-map
-        regexp nfa>> [ assoc-union ] change-rows drop
-        range [ range-min ] [ range-max ] bi [ offset + ] bi@ 2array
-        regexp stack>> push ] ;
-
-: last-state ( regexp -- range )
-    stack>> peek first2 [a,b] ;
-
-: set-last-state-final ( ? regexp -- )
-    [ stack>> peek second ] [ nfa>> final-states>> ] bi set-at ;
-
-: apply-plus-closure ( regexp -- )
-    [ dup last-state copy-state-rows ]
-    [ apply-kleene-closure ]
-    [ apply-concatenation ] tri ;
-
-: apply-question-closure ( regexp -- )
-    [ stack>> peek first2 eps swap <entry> ] [ nfa>> add-entry ] bi ;
-
-: with0 ( obj n quot -- n quot' ) swapd curry ; inline
-
-
-: range>state ( range -- pair )
-    [ from>> ] [ length>> ] bi over - 2array ;
-
-: copy-state ( regexp range n -- )
-    dup zero? [
-        drop range>state over stack>> push apply-question-closure
-    ] [
-        [ copy-state-rows ] with0 with0 times
-    ] if ;
-
-:: (exactly-n) ( regexp state n -- )
-    regexp state n copy-state
-    t regexp set-last-state-final ;
-
-: exactly-n ( regexp n -- )
-    >r dup last-state r> 1- (exactly-n) ;
-
-: exactly-n-concatenated ( regexp state n -- )
-B
-    [ (exactly-n) ] 3keep
-    nip 1- [ apply-concatenation ] with0 times ;
-
-:: at-least-n ( regexp n -- )
-    [let | state [ regexp stack>> pop first2 [a,b] ] |
-        regexp state n copy-state
-        state regexp stack>> push
-        regexp apply-kleene-closure ] ; 
-
-: peek-last ( regexp -- range )
-    stack>> peek first2 [a,b] ;
-
-: pop-last ( regexp -- range )
-    stack>> pop first2 [a,b] ;
-
-:: at-most-n ( regexp n -- )
-    [let | state [ regexp pop-last ] |
-        regexp state n [ 1+ exactly-n-concatenated ] with with each
-        regexp n 1- [ apply-alternation ] with0 times
-        regexp apply-question-closure ] ;
-
-:: from-m-to-n ( regexp m n -- )
-    [let | state [ regexp pop-last ] |
-        regexp state
-        m n [a,b] [ exactly-n-concatenated ] with with each
-        regexp n m - [ apply-alternation ] with0 times ] ;
-
-: apply-brace-closure ( regexp from/f to/f comma? -- )
-    [
-        2dup and
-        [ from-m-to-n ]
-        [ [ nip at-most-n ] [ at-least-n ] if* ] if
-    ] [ drop exactly-n ] if ;
-
-:: push-single-nfa ( regexp obj -- )
-    [let | s0 [ regexp next-state ]
-           s1 [ regexp next-state ]
-           stack [ regexp stack>> ]
-           table [ regexp nfa>> ] |
-        s0 obj s1 <entry> table set-entry
-        s1 table add-row
-        t s1 table final-states>> set-at
-        s0 s1 2array stack push ] ;
-
-: set-start-state ( regexp -- )
-    dup stack>> dup empty? [
-        2drop
-    ] [
-        [ nfa>> ] [ pop first ] bi* >>start-state drop
-    ] if ;
-
-: ascii? ( n -- ? ) 0 HEX: 7f between? ;
-: octal-digit? ( n -- ? ) CHAR: 0 CHAR: 7 between? ;
-: decimal-digit? ( n -- ? ) CHAR: 0 CHAR: 9 between? ;
-
-: hex-digit? ( n -- ? )
-    [
-        [ dup decimal-digit? ]
-        [ dup CHAR: a CHAR: f between? ]
-        [ dup CHAR: A CHAR: F between? ]
-    ] || nip ;
-
-: control-char? ( n -- ? )
-    [
-        [ dup 0 HEX: 1f between? ]
-        [ dup HEX: 7f = ]
-    ] || nip ;
-
-: punct? ( n -- ? )
-    "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" member? ;
-
-: c-identifier-char? ( ch -- ? ) 
-    [ [ dup alpha? ] [ dup CHAR: _ = ] ] || nip ;
-
-: java-blank? ( n -- ? )
-    {   
-        CHAR: \s CHAR: \t CHAR: \n
-        HEX: b HEX: 7 CHAR: \r
-    } member? ;
-
-: java-printable? ( n -- ? )
-    [ [ dup alpha? ] [ dup punct? ] ] || nip ;
-
-ERROR: bad-character-class obj ;
-
-: parse-posix-class ( -- quot )
-    next
-    CHAR: { expect
-    [ get-char CHAR: } = ] take-until
-    {
-        { "Lower" [ [ letter? ] ] }
-        { "Upper" [ [ LETTER? ] ] }
-        { "ASCII" [ [ ascii? ] ] }
-        { "Alpha" [ [ Letter? ] ] }
-        { "Digit" [ [ digit? ] ] }
-        { "Alnum" [ [ alpha? ] ] }
-        { "Punct" [ [ punct? ] ] }
-        { "Graph" [ [ java-printable? ] ] }
-        { "Print" [ [ java-printable? ] ] }
-        { "Blank" [ [ " \t" member? ] ] }
-        { "Cntrl" [ [ control-char? ] ] }
-        { "XDigit" [ [ hex-digit? ] ] }
-        { "Space" [ [ java-blank? ] ] }
-        ! TODO: unicode-character-class, fallthrough in unicode is bad-char-clss
-        [ bad-character-class ]
-    } case ;
-
-ERROR: bad-octal number ;
-
-: parse-octal ( -- n )
-    next get-char drop
-    3 take oct>
-    dup 255 > [ bad-octal ] when ;
-
-ERROR: bad-hex number ;
-
-: parse-short-hex ( -- n )
-    next 2 take hex>
-    dup number? [ bad-hex ] unless ;
-
-: parse-long-hex ( -- n )
-    next 6 take hex>
-    dup number? [ bad-hex ] unless ;
-
-: parse-control-character ( -- n )
-    next get-char ;
-
-: dot-construction ( regexp -- )
-    [ CHAR: \n = not ] push-single-nfa ;
-
-: front-anchor-construction ( regexp -- )
-    drop ;
-
-: back-anchor-construction  ( regexp -- )
-    drop ;
-
-: parse-brace ( -- from/f to/f comma? )
-    next
-    [ get-char CHAR: } = ] take-until
-    "," split1 [ [ string>number ] bi@ ] keep >boolean ;
-
-TUPLE: character-class members ;
-TUPLE: character-class-range from to ;
-TUPLE: negated-character-class < character-class ;
-TUPLE: negated-character-class-range < character-class-range ;
-TUPLE: intersection-class < character-class ;
-TUPLE: negated-intersection-class < intersection-class ;
-
-GENERIC: character-class-contains? ( obj character-class -- ? )
-
-: parse-escaped-until ( -- seq )
-    [ get-char CHAR: \ = get-next CHAR: E = and ] take-until
-    next ;
-
-: character-class-predicate ( seq -- quot )
-    boa '[ , character-class-contains? ] ;
-
-ERROR: unmatched-escape-sequence ;
-
-: (parse-escaped) ( regexp ? ch -- obj )
-    {
-        { CHAR: \ [ [ CHAR: \ = ] ] }
-        { CHAR: t [ [ CHAR: \t = ] ] }
-        { CHAR: n [ [ CHAR: \n = ] ] }
-        { CHAR: r [ [ CHAR: \r = ] ] }
-        { CHAR: f [ [ HEX: c = ] ] }
-        { CHAR: a [ [ HEX: 7 = ] ] }
-        { CHAR: e [ [ HEX: 1b = ] ] }
-
-        { CHAR: d [ [ digit? ] ] }
-        { CHAR: D [ [ digit? not ] ] }
-        { CHAR: s [ [ java-blank? ] ] }
-        { CHAR: S [ [ java-blank? not ] ] }
-        { CHAR: w [ [ c-identifier-char? ] ] }
-        { CHAR: W [ [ c-identifier-char? not ] ] }
-
-        { CHAR: p [ parse-posix-class ] }
-        { CHAR: P [ parse-posix-class [ not ] compose ] }
-        { CHAR: x [ parse-short-hex ] }
-        { CHAR: u [ parse-long-hex ] }
-        { CHAR: 0 [ parse-octal ] }
-        { CHAR: c [ parse-control-character ] }
-
-        ! { CHAR: Q [ next parse-escaped-until ] }
-        ! { CHAR: E [ unmatched-escape-sequence ] }
-
-        ! { CHAR: b [ ] } ! a word boundary
-        ! { CHAR: B [ ] } ! a non-word boundary
-        ! { CHAR: A [ ] } ! beginning of input
-        ! { CHAR: G [ ] } ! end of previous match
-        ! { CHAR: Z [ ] } ! end of input but for the final terminator, if any
-        ! { CHAR: z [ ] } ! end of the input
-        [ ]
-    } case ;
-
-: parse-escaped ( regexp -- )
-    next get-char (parse-escaped) push-single-nfa ;
-
-: handle-dash ( vector -- vector )
-    [ dup dash eq? [ drop CHAR: - ] when ] map ;
-
-M: object character-class-contains? ( obj1 obj2 -- ? )
-    = ;
-
-M: callable character-class-contains? ( obj1 callable -- ? )
-    call ;
-
-M: character-class character-class-contains? ( obj cc -- ? )
-    members>> [ character-class-contains? ] with find drop >boolean ;
-
-M: negated-character-class character-class-contains? ( obj cc -- ? )
-    call-next-method not ;
-
-M: character-class-range character-class-contains? ( obj cc -- ? )
-    [ from>> ] [ to>> ] bi between?  ;
-
-M: negated-character-class-range character-class-contains? ( obj cc -- ? )
-    call-next-method not ;
-
-M: intersection-class character-class-contains? ( obj cc -- ? )
-    members>> [ character-class-contains? not ] with find drop not ;
-
-M: negated-intersection-class character-class-contains? ( obj cc -- ? )
-    call-next-method not ;
-
-ERROR: unmatched-negated-character-class class ;
-
-: handle-caret ( obj -- seq class )
-    dup [ length 2 >= ] [ first caret eq? ] bi and [ 
-        rest negated-character-class
-    ] [
-        character-class
-    ] if ;
-
-: make-character-class ( regexp -- )
-    left-bracket over stack>> cut-stack
-    pick (>>stack)
-    handle-dash handle-caret
-    character-class-predicate push-single-nfa ;
-
-: apply-dash ( regexp -- )
-    stack>> dup [ pop ] [ pop* ] [ pop ] tri
-    swap character-class-range boa swap push ;
-
-: apply-dash? ( regexp -- ? )
-    stack>> dup length 3 >=
-    [ [ length 2 - ] keep nth dash eq? ] [ drop f ] if ;
-
-DEFER: parse-character-class
-: (parse-character-class) ( regexp -- )
-    [
-        next get-char
-        {
-            { CHAR: [ [
-                [ 1+ ] change-bracket-count dup left-bracket push-stack
-                parse-character-class
-            ] }
-            { CHAR: ] [
-                [ 1- ] change-bracket-count
-                make-character-class
-            ] }
-            { CHAR: - [ dash push-stack ] }
-            ! { CHAR: & [ ampersand push-stack ] }
-            ! { CHAR: : [ semicolon push-stack ] }
-            { CHAR: \ [ next get-char (parse-escaped) push-stack ] }
-            { f [ unbalanced-brackets ] }
-            [ dupd push-stack dup apply-dash? [ apply-dash ] [ drop ] if ]
-        } case
-    ] [
-        dup bracket-count>> 0 >
-        [ (parse-character-class) ] [ drop ] if
-    ] bi ;
-
-: parse-character-class-second ( regexp -- )
-    get-next
-    {
-        { CHAR: [ [ CHAR: [ push-stack next ] }
-        { CHAR: ] [ CHAR: ] push-stack next ] }
-        { CHAR: - [ CHAR: - push-stack next ] }
-        [ 2drop ]
-    } case ;
-
-: parse-character-class-first ( regexp -- )
-    get-next
-    {
-        { CHAR: ^ [ caret dupd push-stack next parse-character-class-second ] }
-        { CHAR: [ [ CHAR: [ push-stack next ] }
-        { CHAR: ] [ CHAR: ] push-stack next ] }
-        { CHAR: - [ CHAR: - push-stack next ] }
-        [ 2drop ]
-    } case ;
-
-: parse-character-class ( regexp -- )
-    [ parse-character-class-first ] [ (parse-character-class) ] bi ;
-
-ERROR: unsupported-token token ;
-: parse-token ( regexp token -- )
-    dup {
-        { CHAR: ^ [ drop front-anchor-construction ] }
-        { CHAR: $ [ drop back-anchor-construction ] }
-        { CHAR: \ [ drop parse-escaped ] }
-        { CHAR: | [ drop dup concatenation-loop alternation push-stack ] }
-        { CHAR: ( [ drop [ 1+ ] change-parentheses-count left-parenthesis push-stack ] }
-        { CHAR: ) [ drop [ 1- ] change-parentheses-count left-parenthesis apply-til-last ] }
-        { CHAR: * [ drop apply-kleene-closure ] }
-        { CHAR: + [ drop apply-plus-closure ] }
-        { CHAR: ? [ drop apply-question-closure ] }
-        { CHAR: { [ drop parse-brace apply-brace-closure ] }
-        { CHAR: [ [
-            drop
-            dup left-bracket push-stack
-            [ 1+ ] change-bracket-count parse-character-class
-        ] }
-        ! { CHAR: } [ drop drop "brace" ] }
-        { CHAR: . [ drop dot-construction ] }
-        { beginning-of-text [ push-stack ] }
-        { end-of-text [
-            drop {
-                [ check-unbalanced-parentheses ]
-                [ concatenation-loop ]
-                [ beginning-of-text apply-til-last ]
-                [ set-start-state ]
-            } cleave
-        ] }
-        [ drop push-single-nfa ]
-    } case ;
-
-: (parse-raw-regexp) ( regexp -- )
-    get-char [ dupd parse-token next (parse-raw-regexp) ] [ drop ] if* ;
-
-: parse-raw-regexp ( regexp -- )
-    [ beginning-of-text parse-token ]
-    [
-        dup raw>> dup empty? [
-            2drop
-        ] [
-            [ (parse-raw-regexp) ] string-parse
-        ] if
-    ]
-    [ end-of-text parse-token ] tri ;
-
-:: find-delta ( states obj table -- keys )
-    obj states [
-        table get-row at
-        [ dup integer? [ 1array ] when unique ] [ H{ } ] if*
-    ] with map H{ } clone [ assoc-union ] reduce keys ;
-
-:: (find-closure) ( states obj assoc table -- keys )
-    [let | size [ assoc assoc-size ] |
-        assoc states unique assoc-union
-        dup assoc-size size > [
-            obj states [
-                table get-row at* [
-                    dup integer? [ 1array ] when
-                    obj rot table (find-closure)
-                ] [
-                    drop
-                ] if
-            ] with each
-        ] when ] ;
-
-: find-closure ( states obj table -- states )
-    >r H{ } r> (find-closure) keys ;
-
-: find-epsilon-closure ( states table -- states )
-    >r eps H{ } r> (find-closure) keys ;
-
-: filter-special-transition ( vec -- vec' )
-    [ drop eps = not ] assoc-filter ;
-
-: initialize-subset-construction ( regexp -- )
-    <vector-table> >>dfa
-    [
-        nfa>> [ start-state>> 1array ] keep
-        find-epsilon-closure 1dlist
-    ] [
-        swap >>new-states drop
-    ] [
-        [ dfa>> ] [ nfa>> ] bi
-        columns>> filter-special-transition >>columns drop
-    ] tri ;
-
-:: (subset-construction) ( regexp -- )
-    [let* | nfa [ regexp nfa>> ]
-           dfa [ regexp dfa>> ]
-           new-states [ regexp new-states>> ]
-           columns [ dfa columns>> keys ] |
-        
-        new-states dlist-empty? [
-            new-states pop-front
-            dup dfa add-row
-            columns [
-                2dup nfa [ find-delta ] [ find-epsilon-closure ] bi
-                dup [ dfa rows>> key? ] [ empty? ] bi or [
-                    dup new-states push-back
-                ] unless
-                dup empty? [ 3drop ] [ <entry> dfa set-entry ] if
-            ] with each
-            regexp (subset-construction)
-        ] unless ] ;
-
-: set-start/final-states ( regexp -- )
-    dup [ nfa>> start-state>> ]
-    [ dfa>> rows>> keys [ member? ] with filter first ] bi
-    >r dup dfa>> r> >>start-state drop
-
-    dup [ nfa>> final-states>> ] [ dfa>> rows>> ] bi
-    [ keys ] bi@
-    [ intersect empty? not ] with filter
-    >r dfa>> r> >>final-states drop ;
-
-: subset-construction ( regexp -- )
-    [ initialize-subset-construction ]
-    [ (subset-construction) ]
-    [ set-start/final-states ] tri ;
-
-: <regexp> ( raw -- obj )
-    regexp new
-        swap >>raw
-        0 >>parentheses-count
-        0 >>bracket-count
-        -1 >>state
-        V{ } clone >>stack 
-        <vector-table> >>nfa
-        dup [ parse-raw-regexp ] [ subset-construction ] bi ;
-
-! Literal syntax for regexps
-: parse-options ( string -- ? )
-    #! Lame
-    {
-        { "" [ f ] }
-        { "i" [ t ] }
-    } case ;
-
-: parse-regexp ( accum end -- accum )
-    lexer get dup skip-blank
-    [ [ index-from dup 1+ swap ] 2keep swapd subseq swap ] change-lexer-column
-    ! lexer get dup still-parsing-line?
-    ! [ (parse-token) parse-options ] [ drop f ] if
-    <regexp> parsed ;
-
-: R! CHAR: ! parse-regexp ; parsing
-: R" CHAR: " parse-regexp ; parsing
-: R# CHAR: # parse-regexp ; parsing
-: R' CHAR: ' parse-regexp ; parsing
-: R( CHAR: ) parse-regexp ; parsing
-: R/ CHAR: / parse-regexp ; parsing
-: R@ CHAR: @ parse-regexp ; parsing
-: R[ CHAR: ] parse-regexp ; parsing
-: R` CHAR: ` parse-regexp ; parsing
-: R{ CHAR: } parse-regexp ; parsing
-: R| CHAR: | parse-regexp ; parsing
-
-TUPLE: dfa-traverser
-    dfa
-    last-state current-state
-    text
-    start-index current-index
-    matches ;
-
-: <dfa-traverser> ( text dfa -- match )
-    dfa>>
-    dfa-traverser new
-        swap [ start-state>> >>current-state ] keep
-        >>dfa
-        swap >>text
-        0 >>start-index
-        0 >>current-index
-        V{ } clone >>matches ;
-
-: final-state? ( dfa-traverser -- ? )
-    [ current-state>> ] [ dfa>> final-states>> ] bi
-    member? ;
-
-: text-finished? ( dfa-traverser -- ? )
-    [ current-index>> ] [ text>> length ] bi >= ;
-
-: save-final-state ( dfa-straverser -- )
-    [ current-index>> ] [ matches>> ] bi push ;
-
-: match-done? ( dfa-traverser -- ? )
-    dup final-state? [
-        dup save-final-state
-    ] when text-finished? ;
-
-: increment-state ( dfa-traverser state -- dfa-traverser )
-    >r [ 1+ ] change-current-index
-    dup current-state>> >>last-state r>
-    >>current-state ;
-
-: match-transition ( obj hash -- state/f )
-    2dup keys [ callable? ] filter predicates
-    [ swap at nip ] [ at ] if* ;
-
-: do-match ( dfa-traverser -- dfa-traverser )
-    dup match-done? [
-        dup {
-            [ current-index>> ]
-            [ text>> ]
-            [ current-state>> ]
-            [ dfa>> rows>> ]
-        } cleave
-        at >r nth r> match-transition [
-            increment-state do-match
-        ] when*
-    ] unless ;
-
-: return-match ( dfa-traverser -- interval/f )
-    dup matches>> empty? [
-        drop f
-    ] [
-        [ start-index>> ] [ matches>> peek ] bi 1 <range>
-    ] if ;
-
-: match ( string regexp -- pair )
-    <dfa-traverser> do-match return-match ;
-
-: matches? ( string regexp -- ? )
-    dupd match [ [ length ] [ range-length 1- ] bi* = ] [ drop f ] if* ;
-
-: match-head ( string regexp -- end )
-    match length>> 1- ;
-
-! character classes
-! TUPLE: range-class from to ;
-! TUPLE: or-class left right ;
-
-! (?:a|b)*  <- does not capture
-! (a|b)*\1  <- group captured
-! doesn't advance the current position:
-! (?=abba)  positive lookahead  matches abbaaa but not abaaa
-! (?!abba)  negative lookahead  matches ababa but not abbaa
-! look behind.   "lookaround"
-
-! : $ ( n -- obj ) groups get nth ;
-! [
-    ! groups bound to scope here
-! ] [
-    ! error or something
-! ] if-match
-! match in a string with  .*foo.*
diff --git a/unmaintained/scaffold/crud-templates/edit.furnace b/unmaintained/scaffold/crud-templates/edit.furnace
deleted file mode 100644
index 249ad0af7b..0000000000
--- a/unmaintained/scaffold/crud-templates/edit.furnace
+++ /dev/null
@@ -1,21 +0,0 @@
-<% USING: namespaces io kernel furnace words prettyprint
-generic sequences parser ; %>
-
-<% "model" get %>
-
-<form action="<% dup class dup word-vocabulary use+ unparse write %>-update" method="post">
-
-<% dup crud-index [ %>
-
-<input type="hidden" name="crud-index" value="<% write %>"/>
-
-<% ] when* %>
-
-<table>
-
-<% dup tuple-slots swap class "slot-names" word-prop [ %> <tr><td><% dup write %>:</td>
-    <td><input type="text" name="<% write %>" value="<% write %>"/></td></tr><% ] 2each %>
-    
-</table>
-<input type="submit" name="submit" value="submit"/>
-</form>
\ No newline at end of file
diff --git a/unmaintained/scaffold/crud-templates/list.furnace b/unmaintained/scaffold/crud-templates/list.furnace
deleted file mode 100644
index a472f29380..0000000000
--- a/unmaintained/scaffold/crud-templates/list.furnace
+++ /dev/null
@@ -1,27 +0,0 @@
-<% USING: namespaces kernel io sequences generic words
-prettyprint furnace parser ; %>
-
-<% "model" get dup sequence? not [ unparse %>
-<p><a href="<% write %>-new">New</a></p><% ] [ %>
-
-<p><a href="<% first class unparse write %>-new">New</a></p>
-
-<table>
-<% "model" get dup first class dup
-    word-vocabulary use+ "slot-names" word-prop %>
-<tr><% [ %><th><% write %></th><% ] each %></tr>
-
-<% [ %>
-    
-<tr><% dup tuple-slots [ %><td><% write %></td><% ] each %>
-    
-    <% dup crud-index swap class dup "crud-index" word-prop swap unparse %>
-    <td><a href="<% 3dup write %>-show?<% write %>=<% write %>">Show</a></td>
-    <td><a href="<% 3dup write %>-edit?<% write %>=<% write %>">Edit</a></td>
-    <td><a href="<% write %>-delete?<% write %>=<% write %>">Delete</a></td></tr>
-
-<% ] each %>
-
-</table>
-
-<% ] if %>
\ No newline at end of file
diff --git a/unmaintained/scaffold/crud-templates/show.furnace b/unmaintained/scaffold/crud-templates/show.furnace
deleted file mode 100644
index 3500f24358..0000000000
--- a/unmaintained/scaffold/crud-templates/show.furnace
+++ /dev/null
@@ -1,20 +0,0 @@
-<% USING: namespaces io kernel words generic sequences 
-prettyprint furnace parser ; %>
-
-<% "model" get [ %>
-
-<% dup tuple-slots over class dup
-    word-vocabulary use+ "slot-names" word-prop %>
-
-<table>
-    
-<% [ %><tr><td><% write %>:</td><td><% write %></td></tr><% ] 2each %>
-
-</table>
-
-<% dup crud-index swap class dup "crud-index" word-prop swap unparse %>
-<p><a href="<% 3dup write %>-edit?<% write %>=<% write %>">Edit</a> |
-    <a href="<% [ write %>-delete?<% write %>=<% write  ] keep %>">Delete</a> |
-    <a href="<% dup write %>-new">New</a> | <a href="<% write %>-list">List</a></p>
-
-<% ] [ %><p>No such tuple</p><% ] if* %>
\ No newline at end of file
diff --git a/unmaintained/scaffold/scaffold.factor b/unmaintained/scaffold/scaffold.factor
deleted file mode 100644
index e74374c245..0000000000
--- a/unmaintained/scaffold/scaffold.factor
+++ /dev/null
@@ -1,128 +0,0 @@
-USING: http.server help.markup help.syntax kernel prettyprint
-sequences parser namespaces words classes math tuples.private
-quotations arrays strings ;
-
-IN: furnace.scaffold
-
-TUPLE: furnace-model model ;
-C: <furnace-model> furnace-model
-
-HELP: furnace-model "This definition exists to circumvent a limitation in furnace with regard to sending arbitrary objects as models to .furnace templates." ;
-
-: crud-create ( class string -- word )
-    swap unparse "-" rot 3append in get create ;
-
-HELP: crud-create
-{ $values { "class" class } { "string" string } { "word" word } }
-{ $description "A CRUD utility function - creates a new action word for a given class and suffix string" } ;
-
-: crud-word ( class string -- word )
-    swap unparse "-" rot 3append parse first ;
-HELP: crud-word
-{ $values { "class" class } { "string" string } { "word" word } }
-{ $description "A CRUD utility function - looks up a word that has been crud-created" } ;
-
-: crud-index ( tuple -- )
-    dup class dup "crud-index" word-prop crud-word execute ;
-
-: crud-lookup ( string class -- obj )
-    get-global [ crud-index = ] curry* subset
-    dup empty? [ drop f ] [ first ] if ;
-HELP: crud-lookup
-{ $values { "string" string } { "class" class } { "obj" object } }
-{ $description "A CRUD utility function - looks up an object in the store by the pre-designated index." } ;
-
-: crud-lookup* ( string class -- tuple )
-    tuck crud-lookup
-    [ ] [ dup "slot-names" word-prop length 2 + <tuple> ] ?if ;
-
-HELP: crud-lookup*
-{ $values { "string" string } { "class" class } { "tuple" tuple } }
-"A CRUD utility function - same as crud-lookup, but always returns a tuple of the given class.  When the lookup fails, returns a tuple of the given class with all slots set to f." ;
-
-: render-page ( model template title -- )
-    [
-        [ render-component ] simple-html-document
-    ] serve-html ;
-
-: crud-page ( model template title -- )
-    [ "libs/furnace/crud-templates" template-path set render-page ]
-    with-scope ;
-
-: define-list ( class -- word )
-    dup "list" crud-create swap
-    [ dup get-global dup empty? -rot ? <furnace-model> "list" "List" crud-page ]
-    curry dupd define-compound ;
-
-: define-show ( class -- word )
-    dup "show" crud-create swap
-    [ crud-lookup <furnace-model> "show" "Show" crud-page ] 
-    curry dupd define-compound ;
-
-: define-edit ( class -- word )
-    dup "edit" crud-create swap
-    [ crud-lookup* <furnace-model> "edit" "Edit" crud-page ] 
-    curry dupd define-compound ;
-    
-: define-new ( class -- word )
-    dup "new" crud-create swap "edit" crud-word
-    [ f swap execute ]
-    curry dupd define-compound ;
-    
-: define-update ( class -- word )
-    dup "update" crud-create swap
-    [ 
-        tuck crud-lookup [ over get-global remove over set-global ] when* 
-        dup >r "constructor" word-prop execute
-        r> 2dup get-global swap add over set-global swap
-        crud-index swap "show" crud-word execute
-    ] curry dupd define-compound ;
-
-: define-delete ( class -- word )
-    dup "delete" crud-create swap
-    [ 
-        tuck crud-lookup [ over get-global remove over set-global ] when* 
-        "list" crud-word execute
-    ] curry dupd define-compound ;
-
-: define-lookup ( class -- )
-    dup "crud-index" word-prop ">" pick unparse 3append in get create
-    swap [ crud-lookup ] curry define-compound ;
-
-: define-lookup* ( class -- )
-    dup "crud-index" word-prop ">" pick unparse "*" append 3append 
-    in get create swap [ crud-lookup* ] curry define-compound ;
-
-: scaffold-params ( class -- array )
-    "crud-index" word-prop 1array 1array ;
-
-: scaffold ( class index realm -- )
-    -rot dupd "crud-index" set-word-prop
-    [ define-lookup ] keep [ define-lookup* ] keep
-    [ get-global [ { } over set-global ] unless ] keep
-    [ define-list { } rot define-authenticated-action ] 2keep
-    [ dup define-show swap scaffold-params rot 
-        define-authenticated-action ] 2keep
-    [ dup define-edit swap scaffold-params rot
-        define-authenticated-action ] 2keep
-    [ define-new { } rot define-authenticated-action ] 2keep
-    [ dup define-update swap "slot-names" word-prop 
-        "crud-index" add [ 1array ] map rot 
-        define-authenticated-action ] 2keep
-    dup define-delete swap scaffold-params rot
-    define-authenticated-action ;
-
-HELP: scaffold
-{ $values { "class" class } { "index" "an index" } { "realm" "a realm" } }
-"If realm is not f, then realm is used as the basic authentication realm for the scaffolding actions." ;
-
-ARTICLE: { "furnace" "crud" } "CRUD Scaffolding"
-{ $code 
-    "\"libs/furnace\" require"
-    "USING: furnace httpd threads ;"
-    "IN: furnace:crud-example"
-    "TUPLE: foo bar baz ;"
-    "\"crud-example\" \"foo-list\" f web-app"
-    "foo \"bar\" f scaffold"
-    "[ 8888 httpd ] in-thread"
-} ;
\ No newline at end of file
diff --git a/extra/semantic-db/authors.txt b/unmaintained/semantic-db/authors.txt
similarity index 100%
rename from extra/semantic-db/authors.txt
rename to unmaintained/semantic-db/authors.txt
diff --git a/extra/semantic-db/semantic-db-tests.factor b/unmaintained/semantic-db/semantic-db-tests.factor
similarity index 100%
rename from extra/semantic-db/semantic-db-tests.factor
rename to unmaintained/semantic-db/semantic-db-tests.factor
diff --git a/extra/semantic-db/semantic-db.factor b/unmaintained/semantic-db/semantic-db.factor
similarity index 96%
rename from extra/semantic-db/semantic-db.factor
rename to unmaintained/semantic-db/semantic-db.factor
index 7d50d384e2..e3d13108ad 100755
--- a/extra/semantic-db/semantic-db.factor
+++ b/unmaintained/semantic-db/semantic-db.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors arrays combinators combinators.cleave combinators.lib
 continuations db db.tuples db.types db.sqlite kernel math
-math.parser namespaces parser sets sequences sequences.deep
+math.parser namespaces parser lexer sets sequences sequences.deep
 sequences.lib strings words destructors ;
 IN: semantic-db
 
@@ -36,10 +36,10 @@ TUPLE: arc id subject object relation ;
 : delete-arc ( arc -- ) delete-tuples ;
 
 : create-arc ( subject object relation -- )
-    [ id>> ] 3apply <arc> insert-tuple ;
+    [ id>> ] tri@ <arc> insert-tuple ;
 
 : nodes>arc ( subject object relation -- arc )
-    [ [ id>> ] [ f ] if* ] 3apply <arc> ;
+    [ [ id>> ] [ f ] if* ] tri@ <arc> ;
 
 : select-arcs ( subject object relation -- arcs )
     nodes>arc select-tuples ;
@@ -189,7 +189,7 @@ C: <relation-definition> relation-definition
 
 <PRIVATE
 
-: default-word-name ( relate-word-name word-type -- word-name )
+: default-word-name ( relate-word-name word-type -- name>> )
     {
         { "relate" [ ] }
         { "id-word" [ "-relation" append ] }
@@ -199,14 +199,14 @@ C: <relation-definition> relation-definition
         { "objects" [ "-objects" append ] }
     } case ;
 
-: choose-word-name ( relation-definition given-word-name word-type -- word-name )
+: choose-word-name ( relation-definition given-word-name word-type -- name>> )
     over string? [
         drop nip
     ] [
         nip [ relate>> ] dip default-word-name
     ] if ;
 
-: (define-relation-word) ( id-word word-name definition -- id-word )
+: (define-relation-word) ( id-word name>> definition -- id-word )
     >r create-in over [ execute ] curry r> compose define ;
 
 : define-relation-word ( relation-definition id-word given-word-name word-type definition -- relation-definition id-word )
@@ -225,7 +225,7 @@ C: <relation-definition> relation-definition
     2drop ;
 
 : define-id-word ( relation-definition id-word -- )
-    [ relate>> ] dip tuck word-vocabulary
+    [ relate>> ] dip tuck vocabulary>>
     [ ensure-context ensure-relation ] 2curry define ;
 
 : create-id-word ( relation-definition -- id-word )
diff --git a/unmaintained/shufflers/shufflers-docs.factor b/unmaintained/shufflers/shufflers-docs.factor
deleted file mode 100644
index ac372534ae..0000000000
--- a/unmaintained/shufflers/shufflers-docs.factor
+++ /dev/null
@@ -1,13 +0,0 @@
-USING: help.syntax help.markup ;
-IN: shufflers
-
-HELP: SHUFFLE:
-{ $syntax "SHUFFLE: alphabet #" }
-{ $values { "alphabet" "an alphabet of unique letters" } { "#" "the maximum length" } }
-{ $description "Defines stack shufflers of the form abc-bcba where 'abc' describes the inputs and 'bcba' describes the outputs. Given a stack of 1 2 3, this returns 2 3 2 1. The stack shufflers defined are put in the current vocab with the suffix '.shuffle' appended." }
-{ $examples
-"SHUFFLE: abcd 6\n"
-": 4drop abcd- ;\n"
-": 2over abcd-abcdab ;\n"
-": 2swap abcd-cdab ;\n"
-": 3dup abc-abcabc ;\n" } ;
diff --git a/unmaintained/shufflers/shufflers-tests.factor b/unmaintained/shufflers/shufflers-tests.factor
deleted file mode 100644
index 753f35b2e6..0000000000
--- a/unmaintained/shufflers/shufflers-tests.factor
+++ /dev/null
@@ -1,8 +0,0 @@
-USING: shufflers tools.test ;
-IN: shufflers.tests
-
-SHUFFLE: abcd 4
-[ ] [ 1 2 3 4 abcd- ] unit-test
-[ 1 2 1 2 ] [ 1 2 3 abc-abab ] unit-test
-[ 4 3 2 1 ] [ 1 2 3 4 abcd-dcba ] unit-test
-[ 1 1 1 1 ] [ 1 a-aaaa ] unit-test
diff --git a/unmaintained/shufflers/shufflers.factor b/unmaintained/shufflers/shufflers.factor
deleted file mode 100644
index b11668a53e..0000000000
--- a/unmaintained/shufflers/shufflers.factor
+++ /dev/null
@@ -1,36 +0,0 @@
-USING: kernel sequences words math math.functions arrays 
-shuffle quotations parser math.parser strings namespaces 
-splitting effects sequences.lib ;
-IN: shufflers
-
-: shuffle>string ( names shuffle -- string )
-    swap [ [ nth ] curry map ] curry map
-    first2 "-" swap 3append >string ;
-
-: make-shuffles ( max-out max-in -- shuffles )
-    [ 1+ dup rot strings [ 2array ] with map ]
-    with map concat ;
-
-: shuffle>quot ( shuffle -- quot )
-    [
-        first2 2dup [ - ] with map
-        reverse [ , \ npick , \ >r , ] each
-        swap , \ ndrop , length [ \ r> , ] times
-    ] [ ] make ;
-
-: put-effect ( word -- )
-    dup word-name "-" split1
-    [ >array [ 1string ] map ] bi@
-    <effect> "declared-effect" set-word-prop ;
-
-: in-shuffle ( -- ) in get ".shuffle" append set-in ;
-: out-shuffle ( -- ) in get ".shuffle" ?tail drop set-in ;
-
-: define-shuffles ( names max-out -- )
-    in-shuffle over length make-shuffles [
-        [ shuffle>string create-in ] keep
-        shuffle>quot dupd define put-effect
-    ] with each out-shuffle ;
-
-: SHUFFLE:
-    scan scan string>number define-shuffles ; parsing
diff --git a/unmaintained/shufflers/summary.txt b/unmaintained/shufflers/summary.txt
deleted file mode 100644
index 37b87be410..0000000000
--- a/unmaintained/shufflers/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Arbitrary stack shuffling operators of the form abc-cbab
diff --git a/unmaintained/shufflers/tags.txt b/unmaintained/shufflers/tags.txt
deleted file mode 100644
index f4274299b1..0000000000
--- a/unmaintained/shufflers/tags.txt
+++ /dev/null
@@ -1 +0,0 @@
-extensions
diff --git a/unmaintained/space-invaders/authors.txt b/unmaintained/space-invaders/authors.txt
new file mode 100644
index 0000000000..44b06f94bc
--- /dev/null
+++ b/unmaintained/space-invaders/authors.txt
@@ -0,0 +1 @@
+Chris Double
diff --git a/extra/space-invaders/resources/BaseHit.wav b/unmaintained/space-invaders/resources/BaseHit.wav
similarity index 100%
rename from extra/space-invaders/resources/BaseHit.wav
rename to unmaintained/space-invaders/resources/BaseHit.wav
diff --git a/extra/space-invaders/resources/InvHit.Wav b/unmaintained/space-invaders/resources/InvHit.Wav
similarity index 100%
rename from extra/space-invaders/resources/InvHit.Wav
rename to unmaintained/space-invaders/resources/InvHit.Wav
diff --git a/extra/space-invaders/resources/Shot.wav b/unmaintained/space-invaders/resources/Shot.wav
similarity index 100%
rename from extra/space-invaders/resources/Shot.wav
rename to unmaintained/space-invaders/resources/Shot.wav
diff --git a/extra/space-invaders/resources/Ufo.wav b/unmaintained/space-invaders/resources/Ufo.wav
similarity index 100%
rename from extra/space-invaders/resources/Ufo.wav
rename to unmaintained/space-invaders/resources/Ufo.wav
diff --git a/extra/space-invaders/resources/UfoHit.wav b/unmaintained/space-invaders/resources/UfoHit.wav
similarity index 100%
rename from extra/space-invaders/resources/UfoHit.wav
rename to unmaintained/space-invaders/resources/UfoHit.wav
diff --git a/extra/space-invaders/resources/Walk1.wav b/unmaintained/space-invaders/resources/Walk1.wav
similarity index 100%
rename from extra/space-invaders/resources/Walk1.wav
rename to unmaintained/space-invaders/resources/Walk1.wav
diff --git a/extra/space-invaders/resources/Walk2.wav b/unmaintained/space-invaders/resources/Walk2.wav
similarity index 100%
rename from extra/space-invaders/resources/Walk2.wav
rename to unmaintained/space-invaders/resources/Walk2.wav
diff --git a/extra/space-invaders/resources/Walk3.wav b/unmaintained/space-invaders/resources/Walk3.wav
similarity index 100%
rename from extra/space-invaders/resources/Walk3.wav
rename to unmaintained/space-invaders/resources/Walk3.wav
diff --git a/extra/space-invaders/resources/Walk4.wav b/unmaintained/space-invaders/resources/Walk4.wav
similarity index 100%
rename from extra/space-invaders/resources/Walk4.wav
rename to unmaintained/space-invaders/resources/Walk4.wav
diff --git a/extra/space-invaders/resources/invaders.rom b/unmaintained/space-invaders/resources/invaders.rom
similarity index 100%
rename from extra/space-invaders/resources/invaders.rom
rename to unmaintained/space-invaders/resources/invaders.rom
diff --git a/extra/space-invaders/space-invaders-docs.factor b/unmaintained/space-invaders/space-invaders-docs.factor
similarity index 100%
rename from extra/space-invaders/space-invaders-docs.factor
rename to unmaintained/space-invaders/space-invaders-docs.factor
diff --git a/extra/space-invaders/space-invaders.factor b/unmaintained/space-invaders/space-invaders.factor
similarity index 100%
rename from extra/space-invaders/space-invaders.factor
rename to unmaintained/space-invaders/space-invaders.factor
diff --git a/extra/space-invaders/summary.txt b/unmaintained/space-invaders/summary.txt
similarity index 100%
rename from extra/space-invaders/summary.txt
rename to unmaintained/space-invaders/summary.txt
diff --git a/extra/space-invaders/tags.txt b/unmaintained/space-invaders/tags.txt
similarity index 76%
rename from extra/space-invaders/tags.txt
rename to unmaintained/space-invaders/tags.txt
index 4717ffd987..dfed6b33f2 100644
--- a/extra/space-invaders/tags.txt
+++ b/unmaintained/space-invaders/tags.txt
@@ -1,2 +1,3 @@
+demos
 games
 applications
diff --git a/extra/tangle/authors.txt b/unmaintained/tangle/authors.txt
similarity index 100%
rename from extra/tangle/authors.txt
rename to unmaintained/tangle/authors.txt
diff --git a/extra/tangle/html/html-tests.factor b/unmaintained/tangle/html/html-tests.factor
similarity index 100%
rename from extra/tangle/html/html-tests.factor
rename to unmaintained/tangle/html/html-tests.factor
diff --git a/extra/tangle/html/html.factor b/unmaintained/tangle/html/html.factor
similarity index 100%
rename from extra/tangle/html/html.factor
rename to unmaintained/tangle/html/html.factor
diff --git a/extra/tangle/menu/menu.factor b/unmaintained/tangle/menu/menu.factor
similarity index 100%
rename from extra/tangle/menu/menu.factor
rename to unmaintained/tangle/menu/menu.factor
diff --git a/extra/tangle/page/page.factor b/unmaintained/tangle/page/page.factor
similarity index 100%
rename from extra/tangle/page/page.factor
rename to unmaintained/tangle/page/page.factor
diff --git a/extra/tangle/path/path.factor b/unmaintained/tangle/path/path.factor
similarity index 100%
rename from extra/tangle/path/path.factor
rename to unmaintained/tangle/path/path.factor
diff --git a/extra/tangle/resources/jquery-1.2.3.min.js b/unmaintained/tangle/resources/jquery-1.2.3.min.js
similarity index 100%
rename from extra/tangle/resources/jquery-1.2.3.min.js
rename to unmaintained/tangle/resources/jquery-1.2.3.min.js
diff --git a/extra/tangle/resources/weave.html b/unmaintained/tangle/resources/weave.html
similarity index 100%
rename from extra/tangle/resources/weave.html
rename to unmaintained/tangle/resources/weave.html
diff --git a/extra/tangle/resources/weave.js b/unmaintained/tangle/resources/weave.js
similarity index 100%
rename from extra/tangle/resources/weave.js
rename to unmaintained/tangle/resources/weave.js
diff --git a/extra/tangle/sandbox/sandbox.factor b/unmaintained/tangle/sandbox/sandbox.factor
similarity index 95%
rename from extra/tangle/sandbox/sandbox.factor
rename to unmaintained/tangle/sandbox/sandbox.factor
index b6e110ada5..b44acb7617 100644
--- a/extra/tangle/sandbox/sandbox.factor
+++ b/unmaintained/tangle/sandbox/sandbox.factor
@@ -12,7 +12,7 @@ IN: tangle.sandbox
     ] with-tangle ;
 
 : new-sandbox ( -- )
-    development-mode on
+    development? on
     delete-db sandbox-db f <tangle>
     [ make-sandbox ] [ <tangle-dispatcher> ] bi
     main-responder set ;
diff --git a/extra/tangle/summary.txt b/unmaintained/tangle/summary.txt
similarity index 100%
rename from extra/tangle/summary.txt
rename to unmaintained/tangle/summary.txt
diff --git a/extra/tangle/tangle-tests.factor b/unmaintained/tangle/tangle-tests.factor
similarity index 100%
rename from extra/tangle/tangle-tests.factor
rename to unmaintained/tangle/tangle-tests.factor
diff --git a/extra/tangle/tangle.factor b/unmaintained/tangle/tangle.factor
similarity index 100%
rename from extra/tangle/tangle.factor
rename to unmaintained/tangle/tangle.factor
diff --git a/extra/windows/winsock/authors.txt b/unmaintained/taxes/authors.txt
similarity index 100%
rename from extra/windows/winsock/authors.txt
rename to unmaintained/taxes/authors.txt
diff --git a/extra/taxes/summary.txt b/unmaintained/taxes/summary.txt
similarity index 100%
rename from extra/taxes/summary.txt
rename to unmaintained/taxes/summary.txt
diff --git a/unmaintained/taxes/tags.txt b/unmaintained/taxes/tags.txt
new file mode 100644
index 0000000000..2964ef21b1
--- /dev/null
+++ b/unmaintained/taxes/tags.txt
@@ -0,0 +1 @@
+taxes
diff --git a/extra/taxes/taxes-tests.factor b/unmaintained/taxes/taxes-tests.factor
similarity index 100%
rename from extra/taxes/taxes-tests.factor
rename to unmaintained/taxes/taxes-tests.factor
diff --git a/extra/taxes/taxes.factor b/unmaintained/taxes/taxes.factor
similarity index 88%
rename from extra/taxes/taxes.factor
rename to unmaintained/taxes/taxes.factor
index 1f4eb556dc..5e2a395c40 100644
--- a/extra/taxes/taxes.factor
+++ b/unmaintained/taxes/taxes.factor
@@ -1,5 +1,7 @@
-USING: arrays assocs kernel math math.intervals namespaces
-sequences combinators.lib money math.order ;
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs kernel math math.intervals
+namespaces sequences combinators.lib money math.order ;
 IN: taxes
 
 : monthly ( x -- y ) 12 / ;
@@ -14,22 +16,21 @@ C: <w4> w4
 
 : allowance ( -- x ) 3500 ; inline
 
-: calculate-w4-allowances ( w4 -- x )
-    w4-allowances allowance * ;
+: calculate-w4-allowances ( w4 -- x ) allowances>> allowance * ;
 
 ! Withhold: FICA, Medicare, Federal (FICA is social security)
 : fica-tax-rate ( -- x ) DECIMAL: .062 ; inline
 
 ! Base rate -- income over this rate is not taxed
-TUPLE: fica-base-unknown ;
+ERROR: fica-base-unknown ;
 : fica-base-rate ( year -- x )
     H{
         { 2008 102000 }
         { 2007  97500 }
-    } at* [ T{ fica-base-unknown } throw ] unless ;
+    } at* [ fica-base-unknown ] unless ;
 
 : fica-tax ( salary w4 -- x )
-    w4-year fica-base-rate min fica-tax-rate * ;
+    year>> fica-base-rate min fica-tax-rate * ;
 
 ! Employer tax only, not withheld
 : futa-tax-rate ( -- x ) DECIMAL: .062 ; inline
@@ -54,7 +55,7 @@ TUPLE: tax-table single married ;
 : <tax-table> ( single married class -- obj )
     >r tax-table boa r> construct-delegate ;
 
-: tax-bracket-range dup second swap first - ;
+: tax-bracket-range ( pair -- n ) dup second swap first - ;
 
 : tax-bracket ( tax salary triples -- tax salary )
     [ [ tax-bracket-range min ] keep third * + ] 2keep
@@ -64,8 +65,7 @@ TUPLE: tax-table single married ;
     0 -rot [ tax-bracket ] each drop ;
 
 : marriage-table ( w4 tax-table -- triples )
-    swap w4-married?
-    [ tax-table-married ] [ tax-table-single ] if ;
+    swap married?>> [ married>> ] [ single>> ] if ;
 
 : federal-tax ( salary w4 tax-table -- n )
     [ adjust-allowances ] 2keep marriage-table tax ;
diff --git a/extra/tetris/README.txt b/unmaintained/tetris/README.txt
similarity index 100%
rename from extra/tetris/README.txt
rename to unmaintained/tetris/README.txt
diff --git a/extra/tetris/authors.txt b/unmaintained/tetris/authors.txt
similarity index 100%
rename from extra/tetris/authors.txt
rename to unmaintained/tetris/authors.txt
diff --git a/extra/tetris/board/authors.txt b/unmaintained/tetris/board/authors.txt
similarity index 100%
rename from extra/tetris/board/authors.txt
rename to unmaintained/tetris/board/authors.txt
diff --git a/extra/tetris/board/board-tests.factor b/unmaintained/tetris/board/board-tests.factor
similarity index 100%
rename from extra/tetris/board/board-tests.factor
rename to unmaintained/tetris/board/board-tests.factor
diff --git a/extra/tetris/board/board.factor b/unmaintained/tetris/board/board.factor
similarity index 100%
rename from extra/tetris/board/board.factor
rename to unmaintained/tetris/board/board.factor
diff --git a/extra/tetris/deploy.factor b/unmaintained/tetris/deploy.factor
similarity index 100%
rename from extra/tetris/deploy.factor
rename to unmaintained/tetris/deploy.factor
diff --git a/extra/tetris/game/authors.txt b/unmaintained/tetris/game/authors.txt
similarity index 100%
rename from extra/tetris/game/authors.txt
rename to unmaintained/tetris/game/authors.txt
diff --git a/extra/tetris/game/game-tests.factor b/unmaintained/tetris/game/game-tests.factor
similarity index 100%
rename from extra/tetris/game/game-tests.factor
rename to unmaintained/tetris/game/game-tests.factor
diff --git a/extra/tetris/game/game.factor b/unmaintained/tetris/game/game.factor
similarity index 98%
rename from extra/tetris/game/game.factor
rename to unmaintained/tetris/game/game.factor
index 644a9be1b5..90df619ff7 100644
--- a/extra/tetris/game/game.factor
+++ b/unmaintained/tetris/game/game.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006, 2007 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel sequences math math.functions tetris.board
-tetris.piece tetris.tetromino lazy-lists combinators system ;
+tetris.piece tetris.tetromino lists combinators system ;
 IN: tetris.game
 
 TUPLE: tetris pieces last-update update-interval rows score game-state paused? running? ;
diff --git a/extra/tetris/gl/authors.txt b/unmaintained/tetris/gl/authors.txt
similarity index 100%
rename from extra/tetris/gl/authors.txt
rename to unmaintained/tetris/gl/authors.txt
diff --git a/extra/tetris/gl/gl.factor b/unmaintained/tetris/gl/gl.factor
similarity index 100%
rename from extra/tetris/gl/gl.factor
rename to unmaintained/tetris/gl/gl.factor
diff --git a/extra/tetris/piece/authors.txt b/unmaintained/tetris/piece/authors.txt
similarity index 100%
rename from extra/tetris/piece/authors.txt
rename to unmaintained/tetris/piece/authors.txt
diff --git a/extra/tetris/piece/piece-tests.factor b/unmaintained/tetris/piece/piece-tests.factor
similarity index 100%
rename from extra/tetris/piece/piece-tests.factor
rename to unmaintained/tetris/piece/piece-tests.factor
diff --git a/extra/tetris/piece/piece.factor b/unmaintained/tetris/piece/piece.factor
similarity index 97%
rename from extra/tetris/piece/piece.factor
rename to unmaintained/tetris/piece/piece.factor
index 981b509bfa..55215dbf6a 100644
--- a/extra/tetris/piece/piece.factor
+++ b/unmaintained/tetris/piece/piece.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2006, 2007 Alex Chapman
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel arrays tetris.tetromino math math.vectors 
-sequences quotations lazy-lists ;
+sequences quotations lists.lazy ;
 IN: tetris.piece
 
 #! A piece adds state to the tetromino that is the piece's delegate. The
diff --git a/extra/tetris/summary.txt b/unmaintained/tetris/summary.txt
similarity index 100%
rename from extra/tetris/summary.txt
rename to unmaintained/tetris/summary.txt
diff --git a/extra/tetris/tags.txt b/unmaintained/tetris/tags.txt
similarity index 76%
rename from extra/tetris/tags.txt
rename to unmaintained/tetris/tags.txt
index 8ae5957a4b..09934571b3 100644
--- a/extra/tetris/tags.txt
+++ b/unmaintained/tetris/tags.txt
@@ -1,2 +1,3 @@
+demos
 applications
 games
diff --git a/extra/tetris/tetris.factor b/unmaintained/tetris/tetris.factor
similarity index 96%
rename from extra/tetris/tetris.factor
rename to unmaintained/tetris/tetris.factor
index 02f8f240d2..d01cec3790 100644
--- a/extra/tetris/tetris.factor
+++ b/unmaintained/tetris/tetris.factor
@@ -2,7 +2,8 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alarms arrays calendar kernel ui.gadgets ui.gadgets.labels
 ui.gadgets.worlds ui.gadgets.status-bar ui.gestures ui.render ui
-tetris.game tetris.gl sequences system math math.parser namespaces ;
+tetris.game tetris.gl sequences system math math.parser namespaces
+math.geometry.rect ;
 IN: tetris
 
 TUPLE: tetris-gadget tetris alarm ;
@@ -45,7 +46,7 @@ tetris-gadget H{
     dup tetris-gadget-tetris maybe-update relayout-1 ;
 
 M: tetris-gadget graft* ( gadget -- )
-    dup [ tick ] curry 100 milliseconds from-now 100 milliseconds add-alarm
+    dup [ tick ] curry 100 milliseconds every
     swap set-tetris-gadget-alarm ;
 
 M: tetris-gadget ungraft* ( gadget -- )
diff --git a/extra/tetris/tetromino/authors.txt b/unmaintained/tetris/tetromino/authors.txt
similarity index 100%
rename from extra/tetris/tetromino/authors.txt
rename to unmaintained/tetris/tetromino/authors.txt
diff --git a/extra/tetris/tetromino/tetromino.factor b/unmaintained/tetris/tetromino/tetromino.factor
similarity index 100%
rename from extra/tetris/tetromino/tetromino.factor
rename to unmaintained/tetris/tetromino/tetromino.factor
diff --git a/extra/trees/authors.txt b/unmaintained/trees/authors.txt
similarity index 100%
rename from extra/trees/authors.txt
rename to unmaintained/trees/authors.txt
diff --git a/extra/trees/avl/authors.txt b/unmaintained/trees/avl/authors.txt
similarity index 100%
rename from extra/trees/avl/authors.txt
rename to unmaintained/trees/avl/authors.txt
diff --git a/extra/trees/avl/avl-docs.factor b/unmaintained/trees/avl/avl-docs.factor
similarity index 100%
rename from extra/trees/avl/avl-docs.factor
rename to unmaintained/trees/avl/avl-docs.factor
diff --git a/extra/trees/avl/avl-tests.factor b/unmaintained/trees/avl/avl-tests.factor
similarity index 100%
rename from extra/trees/avl/avl-tests.factor
rename to unmaintained/trees/avl/avl-tests.factor
diff --git a/extra/trees/avl/avl.factor b/unmaintained/trees/avl/avl.factor
similarity index 100%
rename from extra/trees/avl/avl.factor
rename to unmaintained/trees/avl/avl.factor
diff --git a/extra/trees/avl/summary.txt b/unmaintained/trees/avl/summary.txt
similarity index 100%
rename from extra/trees/avl/summary.txt
rename to unmaintained/trees/avl/summary.txt
diff --git a/unmaintained/trees/avl/tags.txt b/unmaintained/trees/avl/tags.txt
new file mode 100644
index 0000000000..42d711b32b
--- /dev/null
+++ b/unmaintained/trees/avl/tags.txt
@@ -0,0 +1 @@
+collections
diff --git a/extra/trees/splay/authors.txt b/unmaintained/trees/splay/authors.txt
similarity index 100%
rename from extra/trees/splay/authors.txt
rename to unmaintained/trees/splay/authors.txt
diff --git a/extra/trees/splay/splay-docs.factor b/unmaintained/trees/splay/splay-docs.factor
similarity index 100%
rename from extra/trees/splay/splay-docs.factor
rename to unmaintained/trees/splay/splay-docs.factor
diff --git a/extra/trees/splay/splay-tests.factor b/unmaintained/trees/splay/splay-tests.factor
similarity index 100%
rename from extra/trees/splay/splay-tests.factor
rename to unmaintained/trees/splay/splay-tests.factor
diff --git a/extra/trees/splay/splay.factor b/unmaintained/trees/splay/splay.factor
similarity index 99%
rename from extra/trees/splay/splay.factor
rename to unmaintained/trees/splay/splay.factor
index ef5fcf8ca6..923df4b6e3 100755
--- a/extra/trees/splay/splay.factor
+++ b/unmaintained/trees/splay/splay.factor
@@ -84,7 +84,7 @@ DEFER: (splay)
 : get-largest ( node -- node )
     dup [ dup node-right [ nip get-largest ] when* ] when ;
 
-: splay-largest
+: splay-largest ( node -- node )
     dup [ dup get-largest node-key swap splay-at ] when ;
 
 : splay-join ( n2 n1 -- node )
diff --git a/extra/trees/splay/summary.txt b/unmaintained/trees/splay/summary.txt
similarity index 100%
rename from extra/trees/splay/summary.txt
rename to unmaintained/trees/splay/summary.txt
diff --git a/extra/trees/splay/tags.txt b/unmaintained/trees/splay/tags.txt
similarity index 100%
rename from extra/trees/splay/tags.txt
rename to unmaintained/trees/splay/tags.txt
diff --git a/extra/trees/summary.txt b/unmaintained/trees/summary.txt
similarity index 100%
rename from extra/trees/summary.txt
rename to unmaintained/trees/summary.txt
diff --git a/extra/trees/tags.txt b/unmaintained/trees/tags.txt
similarity index 100%
rename from extra/trees/tags.txt
rename to unmaintained/trees/tags.txt
diff --git a/extra/trees/trees-docs.factor b/unmaintained/trees/trees-docs.factor
similarity index 100%
rename from extra/trees/trees-docs.factor
rename to unmaintained/trees/trees-docs.factor
diff --git a/extra/trees/trees-tests.factor b/unmaintained/trees/trees-tests.factor
similarity index 100%
rename from extra/trees/trees-tests.factor
rename to unmaintained/trees/trees-tests.factor
diff --git a/extra/trees/trees.factor b/unmaintained/trees/trees.factor
similarity index 90%
rename from extra/trees/trees.factor
rename to unmaintained/trees/trees.factor
index 3b0ab01666..d22dfdb7f1 100755
--- a/extra/trees/trees.factor
+++ b/unmaintained/trees/trees.factor
@@ -101,23 +101,15 @@ M: tree set-at ( value key tree -- )
 
 : valid-tree? ( tree -- ? ) root>> valid-node? ;
 
-: tree-call ( node call -- )
-    >r [ node-key ] keep node-value r> call ; inline
- 
-: find-node ( node quot -- key value ? )
-    {
-        { [ over not ] [ 2drop f f f ] }
-        { [ [
-              >r left>> r> find-node
-            ] 2keep rot ]
-          [ 2drop t ] }
-        { [ >r 2nip r> [ tree-call ] 2keep rot ]
-          [ drop [ node-key ] keep node-value t ] }
-        [ >r right>> r> find-node ]
-    } cond ; inline
+: (node>alist) ( node -- )
+    [
+        [ left>> (node>alist) ]
+        [ [ node-key ] [ node-value ] bi 2array , ]
+        [ right>> (node>alist) ]
+        tri
+    ] when* ;
 
-M: tree assoc-find ( tree quot -- key value ? )
-    >r root>> r> find-node ;
+M: tree >alist [ root>> (node>alist) ] { } make ;
 
 M: tree clear-assoc
     0 >>count
diff --git a/extra/triggers/authors.txt b/unmaintained/triggers/authors.txt
similarity index 100%
rename from extra/triggers/authors.txt
rename to unmaintained/triggers/authors.txt
diff --git a/extra/triggers/summary.txt b/unmaintained/triggers/summary.txt
similarity index 100%
rename from extra/triggers/summary.txt
rename to unmaintained/triggers/summary.txt
diff --git a/extra/triggers/triggers-tests.factor b/unmaintained/triggers/triggers-tests.factor
similarity index 100%
rename from extra/triggers/triggers-tests.factor
rename to unmaintained/triggers/triggers-tests.factor
diff --git a/extra/triggers/triggers.factor b/unmaintained/triggers/triggers.factor
similarity index 100%
rename from extra/triggers/triggers.factor
rename to unmaintained/triggers/triggers.factor
diff --git a/extra/unix/linux/sockios/authors.txt b/unmaintained/turtle/authors.txt
old mode 100755
new mode 100644
similarity index 100%
rename from extra/unix/linux/sockios/authors.txt
rename to unmaintained/turtle/authors.txt
diff --git a/extra/turtle/turtle.factor b/unmaintained/turtle/turtle.factor
similarity index 100%
rename from extra/turtle/turtle.factor
rename to unmaintained/turtle/turtle.factor
diff --git a/vm/Config.freebsd.x86.64 b/vm/Config.freebsd.x86.64
index 0f9667e48d..2151a4a6f6 100644
--- a/vm/Config.freebsd.x86.64
+++ b/vm/Config.freebsd.x86.64
@@ -1,2 +1,3 @@
 include vm/Config.freebsd
 include vm/Config.x86.64
+LIBS += -lpthread
diff --git a/vm/Config.linux b/vm/Config.linux
index 5f83cc835a..eb3a19d75a 100644
--- a/vm/Config.linux
+++ b/vm/Config.linux
@@ -1,4 +1,4 @@
 include vm/Config.unix
 PLAF_DLL_OBJS += vm/os-genunix.o vm/os-linux.o
 CFLAGS += -export-dynamic
-LIBS = -ldl -lm $(X11_UI_LIBS)
+LIBS = -ldl -lm -lpthread $(X11_UI_LIBS)
diff --git a/vm/Config.macosx b/vm/Config.macosx
index 40eeb91322..54078cfe8d 100644
--- a/vm/Config.macosx
+++ b/vm/Config.macosx
@@ -6,7 +6,7 @@ PLAF_DLL_OBJS += vm/os-macosx.o vm/mach_signal.o
 DLL_EXTENSION = .dylib
 
 ifdef X11
-	LIBS = -lm -framework Foundation $(X11_UI_LIBS)
+	LIBS = -lm -framework Foundation $(X11_UI_LIBS) -Wl,-dylib_file,/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
 else
     LIBS = -lm -framework Cocoa -framework AppKit
 endif
diff --git a/vm/Config.openbsd b/vm/Config.openbsd
index 4b1ab88775..ae82d7d1a1 100644
--- a/vm/Config.openbsd
+++ b/vm/Config.openbsd
@@ -2,4 +2,4 @@ include vm/Config.unix
 PLAF_DLL_OBJS += vm/os-genunix.o vm/os-openbsd.o
 CC = egcc
 CFLAGS += -export-dynamic
-LIBS = -L/usr/local/lib/ -lm $(X11_UI_LIBS) -lz -lssl -lcrypto
+LIBS = -L/usr/local/lib/ -lm $(X11_UI_LIBS) -lz -lssl -lcrypto -lpthread
diff --git a/vm/alien.c b/vm/alien.c
index a7dd654cf2..5b4ff3b832 100755
--- a/vm/alien.c
+++ b/vm/alien.c
@@ -9,8 +9,6 @@ void *alien_offset(CELL object)
 	switch(type_of(object))
 	{
 	case BYTE_ARRAY_TYPE:
-	case BIT_ARRAY_TYPE:
-	case FLOAT_ARRAY_TYPE:
 		byte_array = untag_object(object);
 		return byte_array + 1;
 	case ALIEN_TYPE:
@@ -64,7 +62,7 @@ CELL allot_alien(CELL delegate, CELL displacement)
 	{
 		F_ALIEN *delegate_alien = untag_object(delegate);
 		displacement += delegate_alien->displacement;
-		alien->alien = F;
+		alien->alien = delegate_alien->alien;
 	}
 	else
 		alien->alien = delegate;
@@ -96,8 +94,6 @@ DEFINE_PRIMITIVE(displaced_alien)
 		switch(type_of(alien))
 		{
 		case BYTE_ARRAY_TYPE:
-		case BIT_ARRAY_TYPE:
-		case FLOAT_ARRAY_TYPE:
 		case ALIEN_TYPE:
 		case F_TYPE:
 			dpush(allot_alien(alien,displacement));
diff --git a/vm/code_gc.c b/vm/code_gc.c
index e0abdc5a61..03661999c5 100755
--- a/vm/code_gc.c
+++ b/vm/code_gc.c
@@ -308,6 +308,8 @@ DEFINE_PRIMITIVE(code_room)
 /* Dump all code blocks for debugging */
 void dump_heap(F_HEAP *heap)
 {
+	CELL size = 0;
+
 	F_BLOCK *scan = first_block(heap);
 
 	while(scan)
@@ -319,9 +321,11 @@ void dump_heap(F_HEAP *heap)
 			status = "free";
 			break;
 		case B_ALLOCATED:
+			size += object_size(block_to_compiled(scan)->relocation);
 			status = "allocated";
 			break;
 		case B_MARKED:
+			size += object_size(block_to_compiled(scan)->relocation);
 			status = "marked";
 			break;
 		default:
@@ -333,6 +337,8 @@ void dump_heap(F_HEAP *heap)
 
 		scan = next_block(heap,scan);
 	}
+	
+	printf("%ld bytes of relocation data\n",size);
 }
 
 /* Compute where each block is going to go, after compaction */
diff --git a/vm/code_heap.c b/vm/code_heap.c
index 69ffdeb2aa..1435caa9d2 100755
--- a/vm/code_heap.c
+++ b/vm/code_heap.c
@@ -63,6 +63,8 @@ INLINE CELL compute_code_rel(F_REL *rel,
 		return (CELL)get_rel_symbol(rel,literals_start);
 	case RT_LITERAL:
 		return CREF(literals_start,REL_ARGUMENT(rel));
+	case RT_IMMEDIATE:
+		return get(CREF(literals_start,REL_ARGUMENT(rel)));
 	case RT_XT:
 		return (CELL)untag_word(get(CREF(literals_start,REL_ARGUMENT(rel))))->xt;
 	case RT_HERE:
diff --git a/vm/code_heap.h b/vm/code_heap.h
index 80605b1d28..c3b476c4b5 100755
--- a/vm/code_heap.h
+++ b/vm/code_heap.h
@@ -12,7 +12,9 @@ typedef enum {
 	/* current offset */
 	RT_HERE,
 	/* a local label */
-	RT_LABEL
+	RT_LABEL,
+	/* immeditae literal */
+	RT_IMMEDIATE
 } F_RELTYPE;
 
 typedef enum {
diff --git a/vm/cpu-ppc.S b/vm/cpu-ppc.S
index 55c4f01df0..412e277ea6 100755
--- a/vm/cpu-ppc.S
+++ b/vm/cpu-ppc.S
@@ -103,20 +103,6 @@ DEF(void,c_to_factor,(CELL quot)):
         EPILOGUE
         blr
 
-/* We must pass the XT to the quotation in r11. */
-DEF(void,primitive_call,(void)):
-        lwz r3,0(r14)      /* load quotation from data stack */
-        subi r14,r14,4     /* pop quotation from data stack */
-        JUMP_QUOT
-
-/* We must preserve r4 here in case we're calling a primitive */
-DEF(void,primitive_execute,(void)):
-        lwz r3,0(r14)      /* load word from data stack */
-        lwz r11,29(r3)     /* load word-xt slot */
-        mtctr r11          /* prepare to call XT */
-        subi r14,r14,4     /* pop word from data stack */
-        bctr               /* go */
-
 /* We pass a function pointer to memcpy in r6 to work around a Mac OS X ABI
 limitation which would otherwise require us to do a bizzaro PC-relative
 trampoline to retrieve the function address */
diff --git a/vm/cpu-x86.32.S b/vm/cpu-x86.32.S
index 6233b4a14f..b1a3561974 100644
--- a/vm/cpu-x86.32.S
+++ b/vm/cpu-x86.32.S
@@ -6,7 +6,6 @@ and the callstack top is passed in EDX */
 
 #define ARG0 %eax
 #define ARG1 %edx
-#define XT_REG %ecx
 #define STACK_REG %esp
 #define DS_REG %esi
 #define RETURN_REG %eax
@@ -22,9 +21,6 @@ and the callstack top is passed in EDX */
 	pop %ebx
 
 #define QUOT_XT_OFFSET 9
-#define PROFILING_OFFSET 25
-#define WORD_DEF_OFFSET 13
-#define WORD_XT_OFFSET 29
 
 /* We pass a function pointer to memcpy to work around a Mac OS X
 ABI limitation which would otherwise require us to do a bizzaro PC-relative
diff --git a/vm/cpu-x86.64.S b/vm/cpu-x86.64.S
index 4e8faa18de..57bfcee87b 100644
--- a/vm/cpu-x86.64.S
+++ b/vm/cpu-x86.64.S
@@ -2,7 +2,6 @@
 
 #define ARG0 %rdi
 #define ARG1 %rsi
-#define XT_REG %rcx
 #define STACK_REG %rsp
 #define DS_REG %r14
 #define RETURN_REG %rax
@@ -22,9 +21,6 @@
 	pop %rbx
 
 #define QUOT_XT_OFFSET 21
-#define PROFILING_OFFSET 53
-#define WORD_DEF_OFFSET 29
-#define WORD_XT_OFFSET 61
 
 /* We pass a function pointer to memcpy to work around a Mac OS X
 ABI limitation which would otherwise require us to do a bizzaro PC-relative
diff --git a/vm/cpu-x86.S b/vm/cpu-x86.S
index 5c0a105a55..e8e2af7b25 100755
--- a/vm/cpu-x86.S
+++ b/vm/cpu-x86.S
@@ -1,5 +1,3 @@
-#define JUMP_QUOT jmp *QUOT_XT_OFFSET(ARG0)
-
 DEF(F_FASTCALL void,c_to_factor,(CELL quot)):
 	PUSH_NONVOLATILE
 	push ARG0                             /* Save quot */
@@ -14,20 +12,9 @@ DEF(F_FASTCALL void,c_to_factor,(CELL quot)):
 	POP_NONVOLATILE
 	ret
 
-DEF(F_FASTCALL void,primitive_call,(void)):
-        mov (DS_REG),ARG0                     /* Load quotation from data stack */
-	sub $CELL_SIZE,DS_REG                 /* Pop data stack */
-	JUMP_QUOT
-
-/* Don't mess up EDX, it's the callstack top parameter to primitives. */
-DEF(F_FASTCALL void,primitive_execute,(void)):
-	mov (DS_REG),ARG0                     /* Load word from data stack */
-	sub $CELL_SIZE,DS_REG                 /* Pop data stack */
-        jmp *WORD_XT_OFFSET(ARG0)             /* Load word-xt slot */
-
 DEF(F_FASTCALL void,throw_impl,(CELL quot, F_STACK_FRAME *rewind_to)):
 	mov ARG1,STACK_REG                    /* rewind_to */
-	JUMP_QUOT
+	jmp *QUOT_XT_OFFSET(ARG0)
 
 DEF(FASTCALL void,lazy_jit_compile,(CELL quot)):
 	mov STACK_REG,ARG1           /* Save stack pointer */
@@ -39,7 +26,7 @@ DEF(FASTCALL void,lazy_jit_compile,(CELL quot)):
 	pop ARG1                     /* OK to clobber ARG1 here */
 	pop ARG1
 	pop ARG1
-        JUMP_QUOT                    /* Call the quotation */
+        jmp *QUOT_XT_OFFSET(ARG0)    /* Call the quotation */
 
 #ifdef WINDOWS
 	.section .drectve
diff --git a/vm/data_gc.c b/vm/data_gc.c
index 54ad1168a0..2e05395d19 100755
--- a/vm/data_gc.c
+++ b/vm/data_gc.c
@@ -219,12 +219,6 @@ CELL unaligned_object_size(CELL pointer)
 	case BYTE_ARRAY_TYPE:
 		return byte_array_size(
 			byte_array_capacity((F_BYTE_ARRAY*)pointer));
-	case BIT_ARRAY_TYPE:
-		return bit_array_size(
-			bit_array_capacity((F_BIT_ARRAY*)pointer));
-	case FLOAT_ARRAY_TYPE:
-		return float_array_size(
-			float_array_capacity((F_FLOAT_ARRAY*)pointer));
 	case STRING_TYPE:
 		return string_size(string_capacity((F_STRING*)pointer));
 	case TUPLE_TYPE:
@@ -600,8 +594,6 @@ CELL binary_payload_start(CELL pointer)
 	/* these objects do not refer to other objects at all */
 	case FLOAT_TYPE:
 	case BYTE_ARRAY_TYPE:
-	case BIT_ARRAY_TYPE:
-	case FLOAT_ARRAY_TYPE:
 	case BIGNUM_TYPE:
 	case CALLSTACK_TYPE:
 		return 0;
diff --git a/vm/debug.c b/vm/debug.c
index 0278426895..b374aceb9f 100755
--- a/vm/debug.c
+++ b/vm/debug.c
@@ -325,7 +325,6 @@ void find_code_references(CELL look_for_)
 
 void factorbug(void)
 {
-	reset_stdio();
 	open_console();
 
 	printf("Starting low level debugger...\n");
diff --git a/vm/errors.c b/vm/errors.c
index 57dc8b66a1..f2147041a2 100755
--- a/vm/errors.c
+++ b/vm/errors.c
@@ -1,5 +1,12 @@
 #include "master.h"
 
+void out_of_memory(void)
+{
+	fprintf(stderr,"Out of memory\n\n");
+	dump_generations();
+	exit(1);
+}
+
 void fatal_error(char* msg, CELL tagged)
 {
 	fprintf(stderr,"fatal_error: %s %lx\n",msg,tagged);
diff --git a/vm/errors.h b/vm/errors.h
index 227fed9228..22cd6533c3 100755
--- a/vm/errors.h
+++ b/vm/errors.h
@@ -19,6 +19,7 @@ typedef enum
 	ERROR_MEMORY,
 } F_ERRORTYPE;
 
+void out_of_memory(void);
 void fatal_error(char* msg, CELL tagged);
 void critical_error(char* msg, CELL tagged);
 DECLARE_PRIMITIVE(die);
diff --git a/vm/factor.c b/vm/factor.c
index 073b3e2e34..e81152bd99 100755
--- a/vm/factor.c
+++ b/vm/factor.c
@@ -28,7 +28,13 @@ void default_parameters(F_PARAMETERS *p)
 
 	p->secure_gc = false;
 	p->fep = false;
+
+#ifdef WINDOWS
 	p->console = false;
+#else
+	p->console = true;
+#endif
+
 	p->stack_traces = true;
 }
 
@@ -92,6 +98,9 @@ void init_factor(F_PARAMETERS *p)
 	init_c_io();
 	init_signals();
 
+	if(p->console)
+		open_console();
+
 	stack_chain = NULL;
 	profiling_p = false;
 	performing_gc = false;
@@ -180,9 +189,6 @@ void init_factor_from_args(F_CHAR *image, int argc, F_CHAR **argv, bool embedded
 	userenv[EXECUTABLE_ENV] = tag_object(from_native_string(executable_path));
 	userenv[EMBEDDED_ENV] = (embedded ? T : F);
 
-	if(p.console)
-		open_console();
-
 	if(p.fep)
 		factorbug();
 
diff --git a/vm/ffi_test.c b/vm/ffi_test.c
index 5cdfbb2a9e..44a14f21f5 100755
--- a/vm/ffi_test.c
+++ b/vm/ffi_test.c
@@ -274,4 +274,9 @@ unsigned long long ffi_test_38(unsigned long long x, unsigned long long y)
 	return x * y;
 }
 
-
+int ffi_test_39(long a, long b, struct test_struct_13 s)
+{
+	printf("ffi_test_39(%ld,%ld,%f,%f,%f,%f,%f,%f)\n",a,b,s.x1,s.x2,s.x3,s.x4,s.x5,s.x6);
+	if(a != b) abort();
+	return s.x1 + s.x2 + s.x3 + s.x4 + s.x5 + s.x6;
+}
diff --git a/vm/ffi_test.h b/vm/ffi_test.h
index 0f51092d25..779cb97857 100755
--- a/vm/ffi_test.h
+++ b/vm/ffi_test.h
@@ -67,3 +67,7 @@ DLLEXPORT void ffi_test_36_point_5(void);
 DLLEXPORT int ffi_test_37(int (*f)(int, int, int));
 
 DLLEXPORT unsigned long long ffi_test_38(unsigned long long x, unsigned long long y);
+
+struct test_struct_13 { float x1, x2, x3, x4, x5, x6; };
+
+DLLEXPORT int ffi_test_39(long a, long b, struct test_struct_13 s);
diff --git a/vm/image.c b/vm/image.c
index 141594f01f..a0fa48d504 100755
--- a/vm/image.c
+++ b/vm/image.c
@@ -28,8 +28,14 @@ INLINE void load_data_heap(FILE *file, F_HEADER *h, F_PARAMETERS *p)
 
 	F_ZONE *tenured = &data_heap->generations[TENURED];
 
-	if(fread((void*)tenured->start,h->data_size,1,file) != 1)
+	long int bytes_read = fread((void*)tenured->start,1,h->data_size,file);
+
+	if(bytes_read != h->data_size)
+	{
+		fprintf(stderr,"truncated image: %ld bytes read, %ld bytes expected\n",
+			bytes_read,h->data_size);
 		fatal_error("load_data_heap failed",0);
+	}
 
 	tenured->here = tenured->start + h->data_size;
 	data_relocation_base = h->data_relocation_base;
@@ -44,9 +50,16 @@ INLINE void load_code_heap(FILE *file, F_HEADER *h, F_PARAMETERS *p)
 
 	init_code_heap(p->code_size);
 
-	if(h->code_size != 0
-		&& fread(first_block(&code_heap),h->code_size,1,file) != 1)
-		fatal_error("load_code_heap failed",0);
+	if(h->code_size != 0)
+	{
+		long int bytes_read = fread(first_block(&code_heap),1,h->code_size,file);
+		if(bytes_read != h->code_size)
+		{
+			fprintf(stderr,"truncated image: %ld bytes read, %ld bytes expected\n",
+				bytes_read,h->code_size);
+			fatal_error("load_code_heap failed",0);
+		}
+	}
 
 	code_relocation_base = h->code_relocation_base;
 	build_free_list(&code_heap,h->code_size);
@@ -88,7 +101,7 @@ void load_image(F_PARAMETERS *p)
 }
 
 /* Save the current image to disk */
-void save_image(const F_CHAR *filename)
+bool save_image(const F_CHAR *filename)
 {
 	FILE* file;
 	F_HEADER h;
@@ -99,7 +112,7 @@ void save_image(const F_CHAR *filename)
 	if(file == NULL)
 	{
 		fprintf(stderr,"Cannot open image file: %s\n",strerror(errno));
-		return;
+		return false;
 	}
 
 	F_ZONE *tenured = &data_heap->generations[TENURED];
@@ -130,20 +143,22 @@ void save_image(const F_CHAR *filename)
 	if(fwrite((void*)tenured->start,h.data_size,1,file) != 1)
 	{
 		fprintf(stderr,"Save data heap failed: %s\n",strerror(errno));
-		return;
+		return false;
 	}
 
 	if(fwrite(first_block(&code_heap),h.code_size,1,file) != 1)
 	{
 		fprintf(stderr,"Save code heap failed: %s\n",strerror(errno));
-		return;
+		return false;
 	}
 
 	if(fclose(file))
 	{
 		fprintf(stderr,"Failed to close image file: %s\n",strerror(errno));
-		return;
+		return false;
 	}
+
+	return true;
 }
 
 DEFINE_PRIMITIVE(save_image)
@@ -174,10 +189,10 @@ DEFINE_PRIMITIVE(save_image_and_exit)
 	UNREGISTER_C_STRING(path);
 
 	/* Save the image */
-	save_image(path);
-
-	/* now exit; we cannot continue executing like this */
-	exit(0);
+	if(save_image(path))
+		exit(0);
+	else
+		exit(1);
 }
 
 void fixup_word(F_WORD *word)
diff --git a/vm/image.h b/vm/image.h
index 9b7df4e3a8..9e582fc6c6 100755
--- a/vm/image.h
+++ b/vm/image.h
@@ -38,7 +38,7 @@ typedef struct {
 
 void load_image(F_PARAMETERS *p);
 void init_objects(F_HEADER *h);
-void save_image(const F_CHAR *file);
+bool save_image(const F_CHAR *file);
 
 DECLARE_PRIMITIVE(save_image);
 DECLARE_PRIMITIVE(save_image_and_exit);
diff --git a/vm/layouts.h b/vm/layouts.h
index 1aee94357b..7ebfe50dd4 100755
--- a/vm/layouts.h
+++ b/vm/layouts.h
@@ -49,16 +49,14 @@ typedef signed long long s64;
 /*** Header types ***/
 #define ARRAY_TYPE 8
 #define WRAPPER_TYPE 9
-#define FLOAT_ARRAY_TYPE 10
+#define BYTE_ARRAY_TYPE 10
 #define CALLSTACK_TYPE 11
 #define STRING_TYPE 12
-#define BIT_ARRAY_TYPE 13
+#define TUPLE_LAYOUT_TYPE 13
 #define QUOTATION_TYPE 14
 #define DLL_TYPE 15
 #define ALIEN_TYPE 16
 #define WORD_TYPE 17
-#define BYTE_ARRAY_TYPE 18
-#define TUPLE_LAYOUT_TYPE 19
 
 #define TYPE_COUNT 20
 
@@ -93,10 +91,6 @@ typedef struct {
 
 typedef F_ARRAY F_BYTE_ARRAY;
 
-typedef F_ARRAY F_BIT_ARRAY;
-
-typedef F_ARRAY F_FLOAT_ARRAY;
-
 /* Assembly code makes assumptions about the layout of this struct */
 typedef struct {
 	CELL header;
@@ -135,6 +129,8 @@ typedef struct {
 	CELL compiledp;
 	/* TAGGED call count for profiling */
 	CELL counter;
+	/* TAGGED machine code for sub-primitive */
+	CELL subprimitive;
 	/* UNTAGGED execution token: jump here to execute word */
 	XT xt;
 	/* UNTAGGED compiled code block */
diff --git a/vm/mach_signal.c b/vm/mach_signal.c
index bfffa4cee0..57fb91d662 100644
--- a/vm/mach_signal.c
+++ b/vm/mach_signal.c
@@ -166,8 +166,6 @@ void mach_initialize (void)
 {
 	mach_port_t self;
 	exception_mask_t mask;
-	pthread_attr_t attr;
-	pthread_t thread;
 
 	self = mach_task_self ();
 
@@ -186,13 +184,7 @@ void mach_initialize (void)
 	mask = EXC_MASK_BAD_ACCESS | EXC_MASK_ARITHMETIC;
 
 	/* Create the thread listening on the exception port.  */
-	if (pthread_attr_init (&attr) != 0)
-		fatal_error("pthread_attr_init() failed",0);
-	if (pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED) != 0)
-		fatal_error("pthread_attr_setdetachstate() failed",0);
-	if (pthread_create (&thread, &attr, mach_exception_thread, NULL) != 0)
-		fatal_error("pthread_create() failed",0);
-	pthread_attr_destroy (&attr);
+	start_thread(mach_exception_thread);
 
 	/* Replace the exception port info for these exceptions with our own.
 	Note that we replace the exception port for the entire task, not only
diff --git a/vm/math.c b/vm/math.c
index 8c4e7d537a..c1e13951dc 100644
--- a/vm/math.c
+++ b/vm/math.c
@@ -35,33 +35,18 @@ DEFINE_PRIMITIVE(float_to_fixnum)
 	F_FIXNUM y = untag_fixnum_fast(dpop()); \
 	F_FIXNUM x = untag_fixnum_fast(dpop());
 
-/* The fixnum arithmetic operations defined in C are relatively slow.
-The Factor compiler has optimized assembly intrinsics for some of these
-operations. */
 DEFINE_PRIMITIVE(fixnum_add)
 {
 	POP_FIXNUMS(x,y)
 	box_signed_cell(x + y);
 }
 
-DEFINE_PRIMITIVE(fixnum_add_fast)
-{
-	POP_FIXNUMS(x,y)
-	dpush(tag_fixnum(x + y));
-}
-
 DEFINE_PRIMITIVE(fixnum_subtract)
 {
 	POP_FIXNUMS(x,y)
 	box_signed_cell(x - y);
 }
 
-DEFINE_PRIMITIVE(fixnum_subtract_fast)
-{
-	POP_FIXNUMS(x,y)
-	dpush(tag_fixnum(x - y));
-}
-
 /* Multiply two integers, and trap overflow.
 Thanks to David Blaikie (The_Vulture from freenode #java) for the hint. */
 DEFINE_PRIMITIVE(fixnum_multiply)
@@ -87,12 +72,6 @@ DEFINE_PRIMITIVE(fixnum_multiply)
 	}
 }
 
-DEFINE_PRIMITIVE(fixnum_multiply_fast)
-{
-	POP_FIXNUMS(x,y)
-	dpush(tag_fixnum(x * y));
-}
-
 DEFINE_PRIMITIVE(fixnum_divint)
 {
 	POP_FIXNUMS(x,y)
@@ -112,24 +91,6 @@ DEFINE_PRIMITIVE(fixnum_mod)
 	dpush(tag_fixnum(x % y));
 }
 
-DEFINE_PRIMITIVE(fixnum_and)
-{
-	POP_FIXNUMS(x,y)
-	dpush(tag_fixnum(x & y));
-}
-
-DEFINE_PRIMITIVE(fixnum_or)
-{
-	POP_FIXNUMS(x,y)
-	dpush(tag_fixnum(x | y));
-}
-
-DEFINE_PRIMITIVE(fixnum_xor)
-{
-	POP_FIXNUMS(x,y)
-	dpush(tag_fixnum(x ^ y));
-}
-
 /*
  * Note the hairy overflow check.
  * If we're shifting right by n bits, we won't overflow as long as none of the
@@ -172,35 +133,6 @@ DEFINE_PRIMITIVE(fixnum_shift_fast)
 	dpush(tag_fixnum(y < 0 ? (x >> -y) : (x << y)));
 }
 
-DEFINE_PRIMITIVE(fixnum_less)
-{
-	POP_FIXNUMS(x,y)
-	box_boolean(x < y);
-}
-
-DEFINE_PRIMITIVE(fixnum_lesseq)
-{
-	POP_FIXNUMS(x,y)
-	box_boolean(x <= y);
-}
-
-DEFINE_PRIMITIVE(fixnum_greater)
-{
-	POP_FIXNUMS(x,y)
-	box_boolean(x > y);
-}
-
-DEFINE_PRIMITIVE(fixnum_greatereq)
-{
-	POP_FIXNUMS(x,y)
-	box_boolean(x >= y);
-}
-
-DEFINE_PRIMITIVE(fixnum_not)
-{
-	drepl(tag_fixnum(~untag_fixnum_fast(dpeek())));
-}
-
 /* Bignums */
 DEFINE_PRIMITIVE(fixnum_to_bignum)
 {
diff --git a/vm/math.h b/vm/math.h
index d82a373571..6f81ece8a8 100644
--- a/vm/math.h
+++ b/vm/math.h
@@ -11,23 +11,12 @@ DECLARE_PRIMITIVE(float_to_fixnum);
 
 DECLARE_PRIMITIVE(fixnum_add);
 DECLARE_PRIMITIVE(fixnum_subtract);
-DECLARE_PRIMITIVE(fixnum_add_fast);
-DECLARE_PRIMITIVE(fixnum_subtract_fast);
 DECLARE_PRIMITIVE(fixnum_multiply);
-DECLARE_PRIMITIVE(fixnum_multiply_fast);
 DECLARE_PRIMITIVE(fixnum_divint);
 DECLARE_PRIMITIVE(fixnum_divmod);
 DECLARE_PRIMITIVE(fixnum_mod);
-DECLARE_PRIMITIVE(fixnum_and);
-DECLARE_PRIMITIVE(fixnum_or);
-DECLARE_PRIMITIVE(fixnum_xor);
 DECLARE_PRIMITIVE(fixnum_shift);
 DECLARE_PRIMITIVE(fixnum_shift_fast);
-DECLARE_PRIMITIVE(fixnum_less);
-DECLARE_PRIMITIVE(fixnum_lesseq);
-DECLARE_PRIMITIVE(fixnum_greater);
-DECLARE_PRIMITIVE(fixnum_greatereq);
-DECLARE_PRIMITIVE(fixnum_not);
 
 CELL bignum_zero;
 CELL bignum_pos_one;
diff --git a/vm/os-unix.c b/vm/os-unix.c
index 1f63ea7ab1..d4aebad537 100755
--- a/vm/os-unix.c
+++ b/vm/os-unix.c
@@ -1,5 +1,19 @@
 #include "master.h"
 
+void start_thread(void *(*start_routine)(void *))
+{
+	pthread_attr_t attr;
+	pthread_t thread;
+
+	if (pthread_attr_init (&attr) != 0)
+		fatal_error("pthread_attr_init() failed",0);
+	if (pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED) != 0)
+		fatal_error("pthread_attr_setdetachstate() failed",0);
+	if (pthread_create (&thread, &attr, start_routine, NULL) != 0)
+		fatal_error("pthread_create() failed",0);
+	pthread_attr_destroy (&attr);
+}
+
 static void *null_dll;
 
 s64 current_millis(void)
@@ -160,7 +174,7 @@ F_SEGMENT *alloc_segment(CELL size)
 		MAP_ANON | MAP_PRIVATE,-1,0);
 
 	if(array == (char*)-1)
-		fatal_error("Out of memory in alloc_segment",0);
+		out_of_memory();
 
 	if(mprotect(array,pagesize,PROT_NONE) == -1)
 		fatal_error("Cannot protect low guard page",(CELL)array);
@@ -264,10 +278,136 @@ void unix_init_signals(void)
 	sigaction_safe(SIGPIPE,&ignore_sigaction,NULL);
 }
 
-void reset_stdio(void)
+/* On Unix, shared fds such as stdin cannot be set to non-blocking mode
+(http://homepages.tesco.net/J.deBoynePollard/FGA/dont-set-shared-file-descriptors-to-non-blocking-mode.html)
+so we kludge around this by spawning a thread, which waits on a control pipe
+for a signal, upon receiving this signal it reads one block of data from stdin
+and writes it to a data pipe. Upon completion, it writes a 4-byte integer to
+the size pipe, indicating how much data was written to the data pipe.
+
+The read end of the size pipe can be set to non-blocking. */
+__attribute__((visibility("default"))) int stdin_read;
+__attribute__((visibility("default"))) int stdin_write;
+
+__attribute__((visibility("default"))) int control_read;
+__attribute__((visibility("default"))) int control_write;
+
+__attribute__((visibility("default"))) int size_read;
+__attribute__((visibility("default"))) int size_write;
+
+void safe_close(int fd)
 {
-	fcntl(0,F_SETFL,0);
-	fcntl(1,F_SETFL,0);
+	if(close(fd) < 0)
+		fatal_error("error closing fd",errno);
 }
 
-void open_console(void) { }
+bool check_write(int fd, void *data, size_t size)
+{
+	if(write(fd,data,size) == size)
+		return true;
+	else
+	{
+		if(errno == EINTR)
+			return check_write(fd,data,size);
+		else
+			return false;
+	}
+}
+
+void safe_write(int fd, void *data, size_t size)
+{
+	if(!check_write(fd,data,size))
+		fatal_error("error writing fd",errno);
+}
+
+void safe_read(int fd, void *data, size_t size)
+{
+	ssize_t bytes = read(fd,data,size);
+	if(bytes < 0)
+	{
+		if(errno == EINTR)
+			safe_read(fd,data,size);
+		else
+			fatal_error("error reading fd",errno);
+	}
+	else if(bytes != size)
+		fatal_error("unexpected eof on fd",bytes);
+}
+
+void *stdin_loop(void *arg)
+{
+	unsigned char buf[4096];
+	bool loop_running = true;
+
+	while(loop_running)
+	{
+		safe_read(control_read,buf,1);
+		if(buf[0] != 'X')
+			fatal_error("stdin_loop: bad data on control fd",buf[0]);
+
+		for(;;)
+		{
+			ssize_t bytes = read(0,buf,sizeof(buf));
+			if(bytes < 0)
+			{
+				if(errno == EINTR)
+					continue;
+				else
+				{
+					loop_running = false;
+					break;
+				}
+			}
+			else if(bytes >= 0)
+			{
+				safe_write(size_write,&bytes,sizeof(bytes));
+
+				if(write(stdin_write,buf,bytes) != bytes)
+					loop_running = false;
+				break;
+			}
+		}
+	}
+
+
+	safe_close(stdin_write);
+	safe_close(control_write);
+
+	return NULL;
+}
+
+void open_console(void)
+{
+	int filedes[2];
+
+	if(pipe(filedes) < 0)
+		fatal_error("Error opening control pipe",errno);
+
+	control_read = filedes[0];
+	control_write = filedes[1];
+
+	if(pipe(filedes) < 0)
+		fatal_error("Error opening size pipe",errno);
+
+	size_read = filedes[0];
+	size_write = filedes[1];
+
+	if(pipe(filedes) < 0)
+		fatal_error("Error opening stdin pipe",errno);
+
+	stdin_read = filedes[0];
+	stdin_write = filedes[1];
+
+	start_thread(stdin_loop);
+}
+
+DLLEXPORT void wait_for_stdin(void)
+{
+	if(write(control_write,"X",1) != 1)
+	{
+		if(errno == EINTR)
+			wait_for_stdin();
+		else
+			fatal_error("Error writing control fd",errno);
+	}
+}
diff --git a/vm/os-unix.h b/vm/os-unix.h
index a23e8e545c..6db03148cd 100755
--- a/vm/os-unix.h
+++ b/vm/os-unix.h
@@ -6,6 +6,7 @@
 #include <sys/time.h>
 #include <dlfcn.h>
 #include <signal.h>
+#include <pthread.h>
 
 typedef char F_CHAR;
 typedef char F_SYMBOL;
@@ -26,6 +27,8 @@ typedef char F_SYMBOL;
 #define OPEN_WRITE(path) fopen(path,"wb")
 #define FPRINTF(stream,format,arg) fprintf(stream,format,arg)
 
+void start_thread(void *(*start_routine)(void *));
+
 void init_ffi(void);
 void ffi_dlopen(F_DLL *dll);
 void *ffi_dlsym(F_DLL *dll, F_SYMBOL *symbol);
@@ -38,5 +41,4 @@ void dump_stack_signal(int signal, siginfo_t* siginfo, void* uap);
 s64 current_millis(void);
 void sleep_millis(CELL msec);
 
-void reset_stdio(void);
 void open_console(void);
diff --git a/vm/os-windows.c b/vm/os-windows.c
index dc931d31c8..4c21c9b5c9 100755
--- a/vm/os-windows.c
+++ b/vm/os-windows.c
@@ -171,7 +171,7 @@ F_SEGMENT *alloc_segment(CELL size)
 
 	if((mem = (char *)VirtualAlloc(NULL, getpagesize() * 2 + size,
 		MEM_COMMIT, PAGE_EXECUTE_READWRITE)) == 0)
-		fatal_error("Out of memory in alloc_segment",0);
+		out_of_memory();
 
 	if (!VirtualProtect(mem, getpagesize(), PAGE_NOACCESS, &ignore))
 		fatal_error("Cannot allocate low guard page", (CELL)mem);
diff --git a/vm/os-windows.h b/vm/os-windows.h
index 86492990b5..f292c407e5 100755
--- a/vm/os-windows.h
+++ b/vm/os-windows.h
@@ -47,5 +47,3 @@ long getpagesize (void);
 
 s64 current_millis(void);
 
-INLINE void reset_stdio(void) {}
-
diff --git a/vm/primitives.c b/vm/primitives.c
index 133ca38567..b5d9403342 100755
--- a/vm/primitives.c
+++ b/vm/primitives.c
@@ -1,8 +1,6 @@
 #include "master.h"
 
 void *primitives[] = {
-	primitive_execute,
-	primitive_call,
 	primitive_bignum_to_fixnum,
 	primitive_float_to_fixnum,
 	primitive_fixnum_to_bignum,
@@ -18,24 +16,13 @@ void *primitives[] = {
 	primitive_bits_double,
 	primitive_from_rect,
 	primitive_fixnum_add,
-	primitive_fixnum_add_fast,
 	primitive_fixnum_subtract,
-	primitive_fixnum_subtract_fast,
 	primitive_fixnum_multiply,
-	primitive_fixnum_multiply_fast,
 	primitive_fixnum_divint,
 	primitive_fixnum_mod,
 	primitive_fixnum_divmod,
-	primitive_fixnum_and,
-	primitive_fixnum_or,
-	primitive_fixnum_xor,
-	primitive_fixnum_not,
 	primitive_fixnum_shift,
 	primitive_fixnum_shift_fast,
-	primitive_fixnum_less,
-	primitive_fixnum_lesseq,
-	primitive_fixnum_greater,
-	primitive_fixnum_greatereq,
 	primitive_bignum_eq,
 	primitive_bignum_add,
 	primitive_bignum_subtract,
@@ -67,25 +54,6 @@ void *primitives[] = {
 	primitive_float_greatereq,
 	primitive_word,
 	primitive_word_xt,
-	primitive_drop,
-	primitive_2drop,
-	primitive_3drop,
-	primitive_dup,
-	primitive_2dup,
-	primitive_3dup,
-	primitive_rot,
-	primitive__rot,
-	primitive_dupd,
-	primitive_swapd,
-	primitive_nip,
-	primitive_2nip,
-	primitive_tuck,
-	primitive_over,
-	primitive_pick,
-	primitive_swap,
-	primitive_to_r,
-	primitive_from_r,
-	primitive_eq,
 	primitive_getenv,
 	primitive_setenv,
 	primitive_existsp,
@@ -105,13 +73,11 @@ void *primitives[] = {
 	primitive_code_room,
 	primitive_os_env,
 	primitive_millis,
-	primitive_tag,
 	primitive_modify_code_heap,
 	primitive_dlopen,
 	primitive_dlsym,
 	primitive_dlclose,
 	primitive_byte_array,
-	primitive_bit_array,
 	primitive_displaced_alien,
 	primitive_alien_signed_cell,
 	primitive_set_alien_signed_cell,
@@ -141,7 +107,6 @@ void *primitives[] = {
 	primitive_set_alien_cell,
 	primitive_throw,
 	primitive_alien_address,
-	primitive_slot,
 	primitive_set_slot,
 	primitive_string_nth,
 	primitive_set_string_nth,
@@ -170,7 +135,6 @@ void *primitives[] = {
 	primitive_profiling,
 	primitive_become,
 	primitive_sleep,
-	primitive_float_array,
 	primitive_tuple_boa,
 	primitive_callstack_to_array,
 	primitive_innermost_stack_frame_quot,
@@ -182,8 +146,6 @@ void *primitives[] = {
 	primitive_unset_os_env,
 	primitive_set_os_envs,
 	primitive_resize_byte_array,
-	primitive_resize_bit_array,
-	primitive_resize_float_array,
 	primitive_dll_validp,
 	primitive_unimplemented,
 	primitive_gc_reset,
diff --git a/vm/profiler.c b/vm/profiler.c
index 58a4aa035e..27e903178b 100755
--- a/vm/profiler.c
+++ b/vm/profiler.c
@@ -35,8 +35,6 @@ void update_word_xt(F_WORD *word)
 	/* If we just enabled the profiler, reset call count */
 	if(profiling_p)
 	{
-		word->counter = tag_fixnum(0);
-
 		if(!word->profiling)
 		{
 			REGISTER_UNTAGGED(word);
@@ -71,6 +69,8 @@ void set_profiling(bool profiling)
 	for(i = 0; i < length; i++)
 	{
 		F_WORD *word = untag_word(array_nth(untag_array(words),i));
+		if(profiling)
+			word->counter = tag_fixnum(0);
 		update_word_xt(word);
 	}
 
diff --git a/vm/quotations.c b/vm/quotations.c
index e092aab4bf..b75d3f79e0 100755
--- a/vm/quotations.c
+++ b/vm/quotations.c
@@ -1,8 +1,37 @@
 #include "master.h"
 
-/* Simple JIT compiler. This is one of the two compilers implementing Factor;
-the second one is written in Factor and performs a lot of optimizations.
-See core/compiler/compiler.factor */
+/* Simple non-optimizing compiler.
+
+This is one of the two compilers implementing Factor; the second one is written
+in Factor and performs advanced optimizations. See core/compiler/compiler.factor.
+
+The non-optimizing compiler compiles a quotation at a time by concatenating
+machine code chunks; prolog, epilog, call word, jump to word, etc. These machine
+code chunks are generated from Factor code in core/cpu/.../bootstrap.factor.
+
+It actually does do a little bit of very simple optimization:
+
+1) Tail call optimization.
+
+2) If a quotation is determined to not call any other words (except for a few
+special words which are open-coded, see below), then no prolog/epilog is
+generated.
+
+3) When in tail position and immediately preceded by literal arguments, the
+'if' and 'dispatch' conditionals are generated inline, instead of as a call to
+the 'if' word.
+
+4) When preceded by an array, calls to the 'declare' word are optimized out
+entirely. This word is only used by the optimizing compiler, and with the
+non-optimizing compiler it would otherwise just decrease performance to have to
+push the array and immediately drop it after.
+
+5) Sub-primitives are primitive words which are implemented in assembly and not
+in the VM. They are open-coded and no subroutine call is generated. This
+includes stack shufflers, some fixnum arithmetic words, and words such as tag,
+slot and eq?. A primitive call is relatively expensive (two subroutine calls)
+so this results in a big speedup for relatively little effort. */
+
 bool jit_primitive_call_p(F_ARRAY *array, CELL i)
 {
 	return (i + 2) == array_capacity(array)
@@ -25,15 +54,22 @@ bool jit_fast_dispatch_p(F_ARRAY *array, CELL i)
 		&& array_nth(array,i + 1) == userenv[JIT_DISPATCH_WORD];
 }
 
-F_ARRAY *code_to_emit(CELL name)
+bool jit_ignore_declare_p(F_ARRAY *array, CELL i)
 {
-	return untag_object(array_nth(untag_object(userenv[name]),0));
+	return (i + 1) < array_capacity(array)
+		&& type_of(array_nth(array,i)) == ARRAY_TYPE
+		&& array_nth(array,i + 1) == userenv[JIT_DECLARE_WORD];
 }
 
-F_REL rel_to_emit(CELL name, CELL code_format, CELL code_length,
+F_ARRAY *code_to_emit(CELL code)
+{
+	return untag_object(array_nth(untag_object(code),0));
+}
+
+F_REL rel_to_emit(CELL code, CELL code_format, CELL code_length,
 	CELL rel_argument, bool *rel_p)
 {
-	F_ARRAY *quadruple = untag_object(userenv[name]);
+	F_ARRAY *quadruple = untag_object(code);
 	CELL rel_class = array_nth(quadruple,1);
 	CELL rel_type = array_nth(quadruple,2);
 	CELL offset = array_nth(quadruple,3);
@@ -72,8 +108,13 @@ bool jit_stack_frame_p(F_ARRAY *array)
 
 	for(i = 0; i < length - 1; i++)
 	{
-		if(type_of(array_nth(array,i)) == WORD_TYPE)
-			return true;
+		CELL obj = array_nth(array,i);
+		if(type_of(obj) == WORD_TYPE)
+		{
+			F_WORD *word = untag_object(obj);
+			if(word->subprimitive == F && obj != userenv[JIT_DECLARE_WORD])
+				return true;
+		}
 	}
 
 	return false;
@@ -116,7 +157,7 @@ void jit_compile(CELL quot, bool relocate)
 	bool stack_frame = jit_stack_frame_p(untag_object(array));
 
 	if(stack_frame)
-		EMIT(JIT_PROLOG,0);
+		EMIT(userenv[JIT_PROLOG],0);
 
 	CELL i;
 	CELL length = array_capacity(untag_object(array));
@@ -131,34 +172,44 @@ void jit_compile(CELL quot, bool relocate)
 		switch(type_of(obj))
 		{
 		case WORD_TYPE:
-			/* Emit the epilog before the primitive call gate
-			so that we save the C stack pointer minus the
-			current stack frame. */
 			word = untag_object(obj);
 
-			GROWABLE_ARRAY_ADD(literals,array_nth(untag_object(array),i));
-
-			if(i == length - 1)
+			/* Intrinsics */
+			if(word->subprimitive != F)
 			{
-				if(stack_frame)
-					EMIT(JIT_EPILOG,0);
+				if(array_nth(untag_object(word->subprimitive),1) != F)
+				{
+					GROWABLE_ARRAY_ADD(literals,T);
+				}
 
-				EMIT(JIT_WORD_JUMP,literals_count - 1);
-
-				tail_call = true;
+				EMIT(word->subprimitive,literals_count - 1);
 			}
 			else
-				EMIT(JIT_WORD_CALL,literals_count - 1);
+			{
+				GROWABLE_ARRAY_ADD(literals,array_nth(untag_object(array),i));
+
+				if(i == length - 1)
+				{
+					if(stack_frame)
+						EMIT(userenv[JIT_EPILOG],0);
+
+					EMIT(userenv[JIT_WORD_JUMP],literals_count - 1);
+
+					tail_call = true;
+				}
+				else
+					EMIT(userenv[JIT_WORD_CALL],literals_count - 1);
+			}
 			break;
 		case WRAPPER_TYPE:
 			wrapper = untag_object(obj);
 			GROWABLE_ARRAY_ADD(literals,wrapper->object);
-			EMIT(JIT_PUSH_LITERAL,literals_count - 1);
+			EMIT(userenv[JIT_PUSH_LITERAL],literals_count - 1);
 			break;
 		case FIXNUM_TYPE:
 			if(jit_primitive_call_p(untag_object(array),i))
 			{
-				EMIT(JIT_PRIMITIVE,to_fixnum(obj));
+				EMIT(userenv[JIT_PRIMITIVE],to_fixnum(obj));
 
 				i++;
 
@@ -169,11 +220,11 @@ void jit_compile(CELL quot, bool relocate)
 			if(jit_fast_if_p(untag_object(array),i))
 			{
 				if(stack_frame)
-					EMIT(JIT_EPILOG,0);
+					EMIT(userenv[JIT_EPILOG],0);
 
 				GROWABLE_ARRAY_ADD(literals,array_nth(untag_object(array),i));
 				GROWABLE_ARRAY_ADD(literals,array_nth(untag_object(array),i + 1));
-				EMIT(JIT_IF_JUMP,literals_count - 2);
+				EMIT(userenv[JIT_IF_JUMP],literals_count - 2);
 
 				i += 2;
 
@@ -184,19 +235,24 @@ void jit_compile(CELL quot, bool relocate)
 			if(jit_fast_dispatch_p(untag_object(array),i))
 			{
 				if(stack_frame)
-					EMIT(JIT_EPILOG,0);
+					EMIT(userenv[JIT_EPILOG],0);
 
 				GROWABLE_ARRAY_ADD(literals,array_nth(untag_object(array),i));
-				EMIT(JIT_DISPATCH,literals_count - 1);
+				EMIT(userenv[JIT_DISPATCH],literals_count - 1);
 
 				i++;
 
 				tail_call = true;
 				break;
 			}
+			else if(jit_ignore_declare_p(untag_object(array),i))
+			{
+				i++;
+				break;
+			}
 		default:
 			GROWABLE_ARRAY_ADD(literals,obj);
-			EMIT(JIT_PUSH_LITERAL,literals_count - 1);
+			EMIT(userenv[immediate_p(obj) ? JIT_PUSH_IMMEDIATE : JIT_PUSH_LITERAL],literals_count - 1);
 			break;
 		}
 	}
@@ -204,9 +260,9 @@ void jit_compile(CELL quot, bool relocate)
 	if(!tail_call)
 	{
 		if(stack_frame)
-			EMIT(JIT_EPILOG,0);
+			EMIT(userenv[JIT_EPILOG],0);
 
-		EMIT(JIT_RETURN,0);
+		EMIT(userenv[JIT_RETURN],0);
 	}
 
 	GROWABLE_ARRAY_TRIM(code);
@@ -252,7 +308,7 @@ F_FIXNUM quot_code_offset_to_scan(CELL quot, F_FIXNUM offset)
 	bool stack_frame = jit_stack_frame_p(untag_object(array));
 
 	if(stack_frame)
-		COUNT(JIT_PROLOG,0)
+		COUNT(userenv[JIT_PROLOG],0)
 
 	CELL i;
 	CELL length = array_capacity(untag_object(array));
@@ -266,27 +322,29 @@ F_FIXNUM quot_code_offset_to_scan(CELL quot, F_FIXNUM offset)
 		switch(type_of(obj))
 		{
 		case WORD_TYPE:
+			/* Intrinsics */
 			word = untag_object(obj);
-
-			if(i == length - 1)
+			if(word->subprimitive != F)
+				COUNT(word->subprimitive,i)
+			else if(i == length - 1)
 			{
 				if(stack_frame)
-					COUNT(JIT_EPILOG,i);
+					COUNT(userenv[JIT_EPILOG],i);
 
-				COUNT(JIT_WORD_JUMP,i)
+				COUNT(userenv[JIT_WORD_JUMP],i)
 
 				tail_call = true;
 			}
 			else
-				COUNT(JIT_WORD_CALL,i)
+				COUNT(userenv[JIT_WORD_CALL],i)
 			break;
 		case WRAPPER_TYPE:
-			COUNT(JIT_PUSH_LITERAL,i)
+			COUNT(userenv[JIT_PUSH_LITERAL],i)
 			break;
 		case FIXNUM_TYPE:
 			if(jit_primitive_call_p(untag_object(array),i))
 			{
-				COUNT(JIT_PRIMITIVE,i);
+				COUNT(userenv[JIT_PRIMITIVE],i);
 
 				i++;
 
@@ -297,11 +355,11 @@ F_FIXNUM quot_code_offset_to_scan(CELL quot, F_FIXNUM offset)
 			if(jit_fast_if_p(untag_object(array),i))
 			{
 				if(stack_frame)
-					COUNT(JIT_EPILOG,i)
+					COUNT(userenv[JIT_EPILOG],i)
 
 				i += 2;
 
-				COUNT(JIT_IF_JUMP,i)
+				COUNT(userenv[JIT_IF_JUMP],i)
 
 				tail_call = true;
 				break;
@@ -310,17 +368,25 @@ F_FIXNUM quot_code_offset_to_scan(CELL quot, F_FIXNUM offset)
 			if(jit_fast_dispatch_p(untag_object(array),i))
 			{
 				if(stack_frame)
-					COUNT(JIT_EPILOG,i)
+					COUNT(userenv[JIT_EPILOG],i)
 
 				i++;
 
-				COUNT(JIT_DISPATCH,i)
+				COUNT(userenv[JIT_DISPATCH],i)
 
 				tail_call = true;
 				break;
 			}
+			if(jit_ignore_declare_p(untag_object(array),i))
+			{
+				if(offset == 0) return i;
+
+				i++;
+
+				break;
+			}
 		default:
-			COUNT(JIT_PUSH_LITERAL,i)
+			COUNT(userenv[immediate_p(obj) ? JIT_PUSH_IMMEDIATE : JIT_PUSH_LITERAL],i)
 			break;
 		}
 	}
@@ -328,9 +394,9 @@ F_FIXNUM quot_code_offset_to_scan(CELL quot, F_FIXNUM offset)
 	if(!tail_call)
 	{
 		if(stack_frame)
-			COUNT(JIT_EPILOG,length)
+			COUNT(userenv[JIT_EPILOG],length)
 
-		COUNT(JIT_RETURN,length)
+		COUNT(userenv[JIT_RETURN],length)
 	}
 
 	return -1;
diff --git a/vm/run.c b/vm/run.c
index ae0c91d9e6..c4a3e115c1 100755
--- a/vm/run.c
+++ b/vm/run.c
@@ -90,133 +90,6 @@ void init_stacks(CELL ds_size_, CELL rs_size_)
 	stack_chain = NULL;
 }
 
-DEFINE_PRIMITIVE(drop)
-{
-	dpop();
-}
-
-DEFINE_PRIMITIVE(2drop)
-{
-	ds -= 2 * CELLS;
-}
-
-DEFINE_PRIMITIVE(3drop)
-{
-	ds -= 3 * CELLS;
-}
-
-DEFINE_PRIMITIVE(dup)
-{
-	dpush(dpeek());
-}
-
-DEFINE_PRIMITIVE(2dup)
-{
-	CELL top = dpeek();
-	CELL next = get(ds - CELLS);
-	ds += CELLS * 2;
-	put(ds - CELLS,next);
-	put(ds,top);
-}
-
-DEFINE_PRIMITIVE(3dup)
-{
-	CELL c1 = dpeek();
-	CELL c2 = get(ds - CELLS);
-	CELL c3 = get(ds - CELLS * 2);
-	ds += CELLS * 3;
-	put (ds,c1);
-	put (ds - CELLS,c2);
-	put (ds - CELLS * 2,c3);
-}
-
-DEFINE_PRIMITIVE(rot)
-{
-	CELL c1 = dpeek();
-	CELL c2 = get(ds - CELLS);
-	CELL c3 = get(ds - CELLS * 2);
-	put(ds,c3);
-	put(ds - CELLS,c1);
-	put(ds - CELLS * 2,c2);
-}
-
-DEFINE_PRIMITIVE(_rot)
-{
-	CELL c1 = dpeek();
-	CELL c2 = get(ds - CELLS);
-	CELL c3 = get(ds - CELLS * 2);
-	put(ds,c2);
-	put(ds - CELLS,c3);
-	put(ds - CELLS * 2,c1);
-}
-
-DEFINE_PRIMITIVE(dupd)
-{
-	CELL top = dpeek();
-	CELL next = get(ds - CELLS);
-	put(ds,next);
-	put(ds - CELLS,next);
-	dpush(top);
-}
-
-DEFINE_PRIMITIVE(swapd)
-{
-	CELL top = get(ds - CELLS);
-	CELL next = get(ds - CELLS * 2);
-	put(ds - CELLS,next);
-	put(ds - CELLS * 2,top);
-}
-
-DEFINE_PRIMITIVE(nip)
-{
-	CELL top = dpop();
-	drepl(top);
-}
-
-DEFINE_PRIMITIVE(2nip)
-{
-	CELL top = dpeek();
-	ds -= CELLS * 2;
-	drepl(top);
-}
-
-DEFINE_PRIMITIVE(tuck)
-{
-	CELL top = dpeek();
-	CELL next = get(ds - CELLS);
-	put(ds,next);
-	put(ds - CELLS,top);
-	dpush(top);
-}
-
-DEFINE_PRIMITIVE(over)
-{
-	dpush(get(ds - CELLS));
-}
-
-DEFINE_PRIMITIVE(pick)
-{
-	dpush(get(ds - CELLS * 2));
-}
-
-DEFINE_PRIMITIVE(swap)
-{
-	CELL top = dpeek();
-	CELL next = get(ds - CELLS);
-	put(ds,next);
-	put(ds - CELLS,top);
-}
-
-DEFINE_PRIMITIVE(to_r)
-{
-	rpush(dpop());
-}
-
-DEFINE_PRIMITIVE(from_r)
-{
-	dpush(rpop());
-}
-
 bool stack_to_array(CELL bottom, CELL top)
 {
 	F_FIXNUM depth = (F_FIXNUM)(top - bottom + CELLS);
@@ -280,13 +153,6 @@ DEFINE_PRIMITIVE(exit)
 	exit(to_fixnum(dpop()));
 }
 
-DEFINE_PRIMITIVE(eq)
-{
-	CELL lhs = dpop();
-	CELL rhs = dpeek();
-	drepl((lhs == rhs) ? T : F);
-}
-
 DEFINE_PRIMITIVE(millis)
 {
 	box_unsigned_8(current_millis());
@@ -297,18 +163,6 @@ DEFINE_PRIMITIVE(sleep)
 	sleep_millis(to_cell(dpop()));
 }
 
-DEFINE_PRIMITIVE(tag)
-{
-	drepl(tag_fixnum(TAG(dpeek())));
-}
-
-DEFINE_PRIMITIVE(slot)
-{
-	F_FIXNUM slot = untag_fixnum_fast(dpop());
-	CELL obj = dpop();
-	dpush(get(SLOT(obj,slot)));
-}
-
 DEFINE_PRIMITIVE(set_slot)
 {
 	F_FIXNUM slot = untag_fixnum_fast(dpop());
diff --git a/vm/run.h b/vm/run.h
index cc980453cf..96e606e38c 100755
--- a/vm/run.h
+++ b/vm/run.h
@@ -1,4 +1,4 @@
-#define USER_ENV 64
+#define USER_ENV 70
 
 typedef enum {
 	NAMESTACK_ENV,            /* used by library only */
@@ -47,20 +47,23 @@ typedef enum {
 	JIT_EPILOG,
 	JIT_RETURN,
 	JIT_PROFILING,
+	JIT_PUSH_IMMEDIATE,
 
-	STACK_TRACES_ENV    = 36,
+	JIT_DECLARE_WORD    = 42,
 
-	UNDEFINED_ENV       = 37, /* default quotation for undefined words */
+	STACK_TRACES_ENV    = 59,
 
-	STDERR_ENV          = 38, /* stderr FILE* handle */
+	UNDEFINED_ENV       = 60, /* default quotation for undefined words */
 
-	STAGE2_ENV          = 39, /* have we bootstrapped? */
+	STDERR_ENV          = 61, /* stderr FILE* handle */
 
-	CURRENT_THREAD_ENV  = 40,
+	STAGE2_ENV          = 62, /* have we bootstrapped? */
 
-	THREADS_ENV         = 41,
-	RUN_QUEUE_ENV       = 42,
-	SLEEP_QUEUE_ENV     = 43,
+	CURRENT_THREAD_ENV  = 63,
+
+	THREADS_ENV         = 64,
+	RUN_QUEUE_ENV       = 65,
+	SLEEP_QUEUE_ENV     = 66,
 } F_ENVTYPE;
 
 #define FIRST_SAVE_ENV BOOT_ENV
@@ -222,28 +225,9 @@ DLLEXPORT void save_stacks(void);
 DLLEXPORT void nest_stacks(void);
 DLLEXPORT void unnest_stacks(void);
 void init_stacks(CELL ds_size, CELL rs_size);
-DECLARE_PRIMITIVE(drop);
-DECLARE_PRIMITIVE(2drop);
-DECLARE_PRIMITIVE(3drop);
-DECLARE_PRIMITIVE(dup);
-DECLARE_PRIMITIVE(2dup);
-DECLARE_PRIMITIVE(3dup);
-DECLARE_PRIMITIVE(rot);
-DECLARE_PRIMITIVE(_rot);
-DECLARE_PRIMITIVE(dupd);
-DECLARE_PRIMITIVE(swapd);
-DECLARE_PRIMITIVE(nip);
-DECLARE_PRIMITIVE(2nip);
-DECLARE_PRIMITIVE(tuck);
-DECLARE_PRIMITIVE(over);
-DECLARE_PRIMITIVE(pick);
-DECLARE_PRIMITIVE(swap);
-DECLARE_PRIMITIVE(to_r);
-DECLARE_PRIMITIVE(from_r);
+
 DECLARE_PRIMITIVE(datastack);
 DECLARE_PRIMITIVE(retainstack);
-DECLARE_PRIMITIVE(execute);
-DECLARE_PRIMITIVE(call);
 DECLARE_PRIMITIVE(getenv);
 DECLARE_PRIMITIVE(setenv);
 DECLARE_PRIMITIVE(exit);
@@ -252,11 +236,8 @@ DECLARE_PRIMITIVE(os_envs);
 DECLARE_PRIMITIVE(set_os_env);
 DECLARE_PRIMITIVE(unset_os_env);
 DECLARE_PRIMITIVE(set_os_envs);
-DECLARE_PRIMITIVE(eq);
 DECLARE_PRIMITIVE(millis);
 DECLARE_PRIMITIVE(sleep);
-DECLARE_PRIMITIVE(tag);
-DECLARE_PRIMITIVE(slot);
 DECLARE_PRIMITIVE(set_slot);
 
 bool stage2;
diff --git a/vm/types.c b/vm/types.c
index adfdea41a5..3097ee73f8 100755
--- a/vm/types.c
+++ b/vm/types.c
@@ -12,7 +12,7 @@ bool to_boolean(CELL value)
 	return value != F;
 }
 
-CELL clone(CELL object)
+CELL clone_object(CELL object)
 {
 	CELL size = object_size(object);
 	if(size == 0)
@@ -31,7 +31,7 @@ CELL clone(CELL object)
 
 DEFINE_PRIMITIVE(clone)
 {
-	drepl(clone(dpeek()));
+	drepl(clone_object(dpeek()));
 }
 
 F_WORD *allot_word(CELL vocab, CELL name)
@@ -49,6 +49,7 @@ F_WORD *allot_word(CELL vocab, CELL name)
 	word->props = F;
 	word->counter = tag_fixnum(0);
 	word->compiledp = F;
+	word->subprimitive = F;
 	word->profiling = NULL;
 	word->code = NULL;
 
@@ -283,19 +284,6 @@ DEFINE_PRIMITIVE(resize_byte_array)
 	dpush(tag_object(reallot_byte_array(array,capacity)));
 }
 
-F_BYTE_ARRAY *growable_byte_array_add(F_BYTE_ARRAY *result, CELL elt, CELL *result_count)
-{
-	if(*result_count == byte_array_capacity(result))
-	{
-		result = reallot_byte_array(result,*result_count * 2);
-	}
-
-	bput(BREF(result,*result_count),elt);
-	*result_count++;
-
-	return result;
-}
-
 F_BYTE_ARRAY *growable_byte_array_append(F_BYTE_ARRAY *result, void *elts, CELL len, CELL *result_count)
 {
 	CELL new_size = *result_count + len;
@@ -310,108 +298,6 @@ F_BYTE_ARRAY *growable_byte_array_append(F_BYTE_ARRAY *result, void *elts, CELL
 	return result;
 }
 
-/* Bit arrays */
-
-/* size is in bits */
-
-F_BIT_ARRAY *allot_bit_array_internal(CELL size)
-{
-	F_BIT_ARRAY *array = allot_object(BIT_ARRAY_TYPE,bit_array_size(size));
-	array->capacity = tag_fixnum(size);
-	return array;
-}
-
-F_BIT_ARRAY *allot_bit_array(CELL size)
-{
-	F_BIT_ARRAY *array = allot_bit_array_internal(size);
-	memset(array + 1,0,bit_array_size(size));
-	return array;
-}
-
-/* push a new bit array on the stack */
-DEFINE_PRIMITIVE(bit_array)
-{
-	CELL size = unbox_array_size();
-	dpush(tag_object(allot_bit_array(size)));
-}
-
-F_BIT_ARRAY *reallot_bit_array(F_BIT_ARRAY *array, CELL capacity)
-{
-	CELL to_copy = array_capacity(array);
-	if(capacity < to_copy)
-		to_copy = capacity;
-
-	REGISTER_UNTAGGED(array);
-	F_BIT_ARRAY *new_array = allot_bit_array(capacity);
-	UNREGISTER_UNTAGGED(array);
-
-	memcpy(new_array + 1,array + 1,bit_array_size(to_copy));
-
-	return new_array;
-}
-
-DEFINE_PRIMITIVE(resize_bit_array)
-{
-	F_BYTE_ARRAY* array = untag_bit_array(dpop());
-	CELL capacity = unbox_array_size();
-	dpush(tag_object(reallot_bit_array(array,capacity)));
-}
-
-/* Float arrays */
-
-/* size is in 8-byte doubles */
-F_FLOAT_ARRAY *allot_float_array_internal(CELL size)
-{
-	F_FLOAT_ARRAY *array = allot_object(FLOAT_ARRAY_TYPE,
-		float_array_size(size));
-	array->capacity = tag_fixnum(size);
-	return array;
-}
-
-F_FLOAT_ARRAY *allot_float_array(CELL size, double initial)
-{
-	F_FLOAT_ARRAY *array = allot_float_array_internal(size);
-
-	double *elements = (double *)AREF(array,0);
-	int i;
-	for(i = 0; i < size; i++)
-		elements[i] = initial;
-
-	return array;
-}
-
-/* push a new float array on the stack */
-DEFINE_PRIMITIVE(float_array)
-{
-	double initial = untag_float(dpop());
-	CELL size = unbox_array_size();
-	dpush(tag_object(allot_float_array(size,initial)));
-}
-
-F_ARRAY *reallot_float_array(F_FLOAT_ARRAY* array, CELL capacity)
-{
-	F_FLOAT_ARRAY* new_array;
-
-	CELL to_copy = array_capacity(array);
-	if(capacity < to_copy)
-		to_copy = capacity;
-
-	REGISTER_UNTAGGED(array);
-	new_array = allot_float_array(capacity,0.0);
-	UNREGISTER_UNTAGGED(array);
-
-	memcpy(new_array + 1,array + 1,to_copy * sizeof(double));
-
-	return new_array;
-}
-
-DEFINE_PRIMITIVE(resize_float_array)
-{
-	F_FLOAT_ARRAY* array = untag_float_array(dpop());
-	CELL capacity = unbox_array_size();
-	dpush(tag_object(reallot_float_array(array,capacity)));
-}
-
 /* Tuple layouts */
 DEFINE_PRIMITIVE(tuple_layout)
 {
@@ -459,11 +345,8 @@ DEFINE_PRIMITIVE(tuple_boa)
 	F_TUPLE *tuple = allot_tuple(layout);
 	UNREGISTER_UNTAGGED(layout);
 
-	/* set delegate slot */
-	put(AREF(tuple,0),F);
-
 	F_FIXNUM i;
-	for(i = size - 1; i >= 1; i--)
+	for(i = size - 1; i >= 0; i--)
 		put(AREF(tuple,i),dpop());
 
 	dpush(tag_tuple(tuple));
diff --git a/vm/types.h b/vm/types.h
index bbf7fb203d..6efae35f5e 100755
--- a/vm/types.h
+++ b/vm/types.h
@@ -26,30 +26,6 @@ INLINE CELL byte_array_size(CELL size)
 	return sizeof(F_BYTE_ARRAY) + size;
 }
 
-DEFINE_UNTAG(F_BIT_ARRAY,BIT_ARRAY_TYPE,bit_array)
-
-INLINE CELL bit_array_capacity(F_BIT_ARRAY *array)
-{
-	return untag_fixnum_fast(array->capacity);
-}
-
-INLINE CELL bit_array_size(CELL size)
-{
-	return sizeof(F_BIT_ARRAY) + (size + 7) / 8;
-}
-
-DEFINE_UNTAG(F_FLOAT_ARRAY,FLOAT_ARRAY_TYPE,float_array)
-
-INLINE CELL float_array_capacity(F_FLOAT_ARRAY *array)
-{
-	return untag_fixnum_fast(array->capacity);
-}
-
-INLINE CELL float_array_size(CELL size)
-{
-	return sizeof(F_FLOAT_ARRAY) + size * sizeof(double);
-}
-
 INLINE CELL callstack_size(CELL size)
 {
 	return sizeof(F_CALLSTACK) + size;
@@ -141,16 +117,12 @@ DECLARE_PRIMITIVE(tuple);
 DECLARE_PRIMITIVE(tuple_boa);
 DECLARE_PRIMITIVE(tuple_layout);
 DECLARE_PRIMITIVE(byte_array);
-DECLARE_PRIMITIVE(bit_array);
-DECLARE_PRIMITIVE(float_array);
 DECLARE_PRIMITIVE(clone);
 
 F_ARRAY *reallot_array(F_ARRAY* array, CELL capacity, CELL fill);
 F_BYTE_ARRAY *reallot_byte_array(F_BYTE_ARRAY *array, CELL capacity);
 DECLARE_PRIMITIVE(resize_array);
 DECLARE_PRIMITIVE(resize_byte_array);
-DECLARE_PRIMITIVE(resize_bit_array);
-DECLARE_PRIMITIVE(resize_float_array);
 
 F_STRING* allot_string_internal(CELL capacity);
 F_STRING* allot_string(CELL capacity, CELL fill);
@@ -212,11 +184,6 @@ F_ARRAY *growable_array_append(F_ARRAY *result, F_ARRAY *elts, CELL *result_coun
 	CELL result##_count = 0; \
 	CELL result = tag_object(allot_byte_array(100))
 
-F_ARRAY *growable_byte_array_add(F_BYTE_ARRAY *result, CELL elt, CELL *result_count);
-
-#define GROWABLE_BYTE_ARRAY_ADD(result,elt) \
-	result = tag_object(growable_byte_array_add(untag_object(result),elt,&result##_count))
-
 F_ARRAY *growable_byte_array_append(F_BYTE_ARRAY *result, void *elts, CELL len, CELL *result_count);
 
 #define GROWABLE_BYTE_ARRAY_APPEND(result,elts,len) \