documentation updates, minor code cleanups

CHANGES.txt

@@ -7,13 +7,6 @@ Factor 0.76:
   supports styled text output, presentations, and an
   automatically-updated data stack display.
 
-- The number of generations used for garbage collection can now be set
-  with the +G command line switch. You must specify at least 2
-  generations.
-
-- Only 2 generations are used by default now, since there seems to be no
-  performance benefit to having 3 after running some brief benchmarks.
-
 - The following formely list-specific words are now generic:
     
     all? all-with? subset subset-with fiber? prune
@@ -27,8 +20,21 @@ Factor 0.76:
 
 - The nreverse word has been removed.
 
-- reversed ( seq -- seq ) outputs a new sequence that shares structure
+- The , word no longer accepts a string as input. Formely, the following
-  with the given sequence, but presents elements in reverse order.
+  two lines were equivalent:
+  
+  [ "Hello" , " world" , ] make-string
+  [ "Hello" % " world" % ] make-string
+  
+  Now, the former raises a type error.
+  
+- The stream-write, stream-write-attr, write and write-attr generic   
+  words no longer accept a character as an argument. Use the new
+  stream-write1 and write1 generic words to write single characters.
+
+- reverse-slice ( seq -- seq ) outputs a new sequence that shares
+  structure with the given sequence, but presents elements in reverse
+  order.
 
 - Many improvements to the matrices library.
 
@@ -39,6 +45,13 @@ Factor 0.76:
 
 - Improved inspector. Call it with inspect ( obj -- ).
 
+- The number of generations used for garbage collection can now be set
+  with the +G command line switch. You must specify at least 2
+  generations.
+
+- Only 2 generations are used by default now, since there seems to be no
+  performance benefit to having 3 after running some brief benchmarks.
+
 - Fixed bug where images saved from the jEdit plugin would fail to
   start.
 

library/collections/sequences-epilogue.factor

@@ -10,6 +10,7 @@ C: reversed [ set-delegate ] keep ;
 : reversed@ delegate [ length swap - 1 - ] keep ;
 M: reversed nth ( n seq -- elt ) reversed@ nth ;
 M: reversed set-nth ( elt n seq -- ) reversed@ set-nth ;
+M: reversed thaw ( seq -- seq ) delegate reverse ;
 
 ! A repeated sequence is the same element n times.
 TUPLE: repeated length object ;

library/collections/sequences.factor

@@ -41,12 +41,14 @@ G: each ( seq quot -- | quot: elt -- )
 G: 2map ( seq seq quot -- seq | quot: elt elt -- elt )
     [ over ] [ type ] ; inline
 
-G: find [ over ] [ type ] ; inline
+G: find ( seq quot -- i elt )
+    [ over ] [ type ] ; inline
 
 : find-with ( obj seq quot -- i elt )
     swap [ with rot ] find 2swap 2drop ; inline
 
-G: find* [ over ] [ type ] ; inline
+G: find* ( i seq quot -- i elt )
+    [ over ] [ type ] ; inline
 
 : find-with* ( obj i seq quot -- i elt )
     -rot [ with rot ] find* 2swap 2drop ; inline

library/collections/vectors-epilogue.factor

@@ -14,6 +14,8 @@ IN: vectors
 : >vector ( list -- vector )
     dup length <vector> [ swap nappend ] keep ;
 
+M: repeated thaw >vector ;
+
 M: vector clone ( vector -- vector )
     >vector ;
 

library/generic/tuple.factor

@@ -229,4 +229,4 @@ PREDICATE: word tuple-class metaclass tuple = ;
         2drop t
     ] [
         over [ >r delegate r> is? ] [ 2drop f ] ifte
-    ] ifte ;
+    ] ifte ; inline

library/kernel.factor

@@ -34,7 +34,6 @@ DEFER: t?
 : >boolean t f ? ; inline
 : and ( a b -- a&b ) f ? ; inline
 : or ( a b -- a|b ) t swap ? ; inline
-: xor ( a b -- a^b ) dup not swap ? ; inline
 
 : cpu ( -- arch ) 7 getenv ;
 : os ( -- os ) 11 getenv ;

library/math/matrices.factor

@@ -5,6 +5,8 @@ USING: errors generic kernel lists math namespaces sequences
 vectors ;
 
 ! Vector operations
+: vneg ( v -- v ) [ neg ] map ;
+
 : n*v ( n vec -- vec ) [ * ] map-with ;
 : v*n ( vec n -- vec ) swap n*v ;
 : n/v ( n vec -- vec ) [ / ] map-with ;
@@ -14,10 +16,10 @@ vectors ;
 : v- ( v v -- v ) [ - ] 2map ;
 : v* ( v v -- v ) [ * ] 2map ;
 : v/ ( v v -- v ) [ / ] 2map ;
-: vand ( v v -- v ) [ and ] 2map ;
-: vor ( v v -- v ) [ or ] 2map ;
 : vmax ( v v -- v ) [ max ] 2map ;
 : vmin ( v v -- v ) [ min ] 2map ;
+: vand ( v v -- v ) [ and ] 2map ;
+: vor ( v v -- v ) [ or ] 2map ;
 : v< ( v v -- v ) [ < ] 2map ;
 : v<= ( v v -- v ) [ <= ] 2map ;
 : v> ( v v -- v ) [ > ] 2map ;
@@ -26,12 +28,10 @@ vectors ;
 : vbetween? ( v from to -- v )
     >r over >r v>= r> r> v<= vand ;
 
-: vneg ( v -- v ) [ neg ] map ;
-
 : sum ( v -- n ) 0 [ + ] reduce ;
 : product 1 [ * ] reduce ;
-: conj ( v -- ? ) t [ and ] reduce ;
+: conj ( v -- ? ) [ ] all? ;
-: disj ( v -- ? ) f [ or ] reduce ;
+: disj ( v -- ? ) [ ] contains? ;
 
 : set-axis ( x y axis -- v )
     2dup v* >r >r drop dup r> v* v- r> v+ ;

library/math/more-matrices.factor

@@ -4,4 +4,4 @@ IN: matrices
 USING: kernel math ;
 
 : norm ( vec -- n ) norm-sq sqrt ;
-: normalize ( vec -- vec ) [ norm recip ] keep n*v ;
+: normalize ( vec -- vec ) dup norm v/n ;