Merge branch 'master' of git://factorcode.org/git/factor
Slava Pestov
commit
6bdd818b59
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@ -107,9 +107,14 @@ ERROR: type-error type ;
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drop
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215 "UNIX Type: L8" server-response ;
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: if-command-promise ( quot -- )
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>r client get command-promise>> r>
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[ "Establish an active or passive connection first" ftp-error ] if* ;
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: handle-STOR ( obj -- )
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[
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drop
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tokenized>> second
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[ >r <ftp-put> r> fulfill ] if-command-promise
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] [
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2drop
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] recover ;
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@ -122,7 +127,7 @@ ERROR: type-error type ;
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150 "Here comes the directory listing." server-response ;
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: finish-directory ( -- )
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226 "Directory send OK." server-response ;
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226 "Opening " server-response ;
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GENERIC: service-command ( stream obj -- )
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@ -135,21 +140,25 @@ M: ftp-list service-command ( stream obj -- )
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] with-output-stream
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finish-directory ;
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: start-file-transfer ( path -- )
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: transfer-outgoing-file ( path -- )
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150 "Opening BINARY mode data connection for "
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rot
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[ file-name ] [
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" " swap file-info file-info-size number>string
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"(" " bytes)." swapd 3append append
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] bi 3append server-response ;
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: transfer-incoming-file ( path -- )
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150 "Opening BINARY mode data connection for " rot append
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server-response ;
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: finish-file-transfer ( -- )
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226 "File send OK." server-response ;
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M: ftp-get service-command ( stream obj -- )
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[
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path>>
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[ start-file-transfer ]
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[ transfer-outgoing-file ]
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[ binary <file-reader> swap stream-copy ] bi
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finish-file-transfer
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] [
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@ -159,8 +168,8 @@ M: ftp-get service-command ( stream obj -- )
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M: ftp-put service-command ( stream obj -- )
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[
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path>>
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[ start-file-transfer ]
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[ binary <file-reader> swap stream-copy ] bi
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[ transfer-incoming-file ]
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[ binary <file-writer> stream-copy ] bi
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finish-file-transfer
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] [
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3drop "File transfer failed" ftp-error
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@ -177,16 +186,12 @@ M: ftp-put service-command ( stream obj -- )
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service-command
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]
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[ client get f >>command-promise drop ]
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[ ] cleanup
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[ drop ] cleanup
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] with-destructors ;
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: if-command-promise ( quot -- )
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>r client get command-promise>> r>
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[ "Establish an active or passive connection first" ftp-error ] if* ;
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|
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: handle-LIST ( obj -- )
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drop
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[ <ftp-list> swap fulfill ] if-command-promise ;
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[ >r <ftp-list> r> fulfill ] if-command-promise ;
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: handle-SIZE ( obj -- )
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[
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@ -262,7 +267,7 @@ ERROR: not-a-directory ;
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! { "REIN" [ drop client get reset-ftp-client t ] }
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{ "QUIT" [ handle-QUIT f ] }
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! { "PORT" [ ] }
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! { "PORT" [ ] } ! TODO
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{ "PASV" [ handle-PASV t ] }
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! { "MODE" [ ] }
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{ "TYPE" [ handle-TYPE t ] }
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@ -270,7 +275,7 @@ ERROR: not-a-directory ;
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! { "ALLO" [ ] }
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! { "REST" [ ] }
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! { "STOR" [ handle-STOR t ] }
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{ "STOR" [ handle-STOR t ] }
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! { "STOU" [ ] }
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{ "RETR" [ handle-RETR t ] }
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{ "LIST" [ handle-LIST t ] }
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@ -279,9 +284,10 @@ ERROR: not-a-directory ;
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! { "APPE" [ ] }
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! { "RNFR" [ ] }
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! { "RNTO" [ ] }
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! { "DELE" [ ] }
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||||
! { "RMD" [ ] }
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! { "MKD" [ ] }
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! { "DELE" [ handle-DELE t ] }
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! { "RMD" [ handle-RMD t ] }
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! ! { "XRMD" [ handle-XRMD t ] }
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||||
! { "MKD" [ handle-MKD t ] }
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||||
{ "PWD" [ handle-PWD t ] }
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! { "ABOR" [ ] }
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|
||||
|
|
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|
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@ -15,17 +15,14 @@ IN: money
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"." % number>string 2 CHAR: 0 pad-left %
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] "" make print ;
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||||
TUPLE: not-a-decimal ;
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||||
|
||||
: not-a-decimal ( -- * )
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T{ not-a-decimal } throw ;
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||||
ERROR: not-a-decimal x ;
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||||
|
||||
: parse-decimal ( str -- ratio )
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"." split1
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||||
>r dup "-" head? [ drop t "0" ] [ f swap ] if r>
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[ dup empty? [ drop "0" ] when ] bi@
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dup length
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||||
>r [ string>number dup [ not-a-decimal ] unless ] bi@ r>
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||||
>r [ dup string>number [ nip ] [ not-a-decimal ] if* ] bi@ r>
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||||
10 swap ^ / + swap [ neg ] when ;
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|
||||
: DECIMAL:
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|
|
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@ -0,0 +1,138 @@
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USING: regexp4 tools.test kernel ;
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IN: regexp4-tests
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||||
|
||||
[ f ] [ "b" "a*" <regexp> matches? ] unit-test
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||||
[ t ] [ "" "a*" <regexp> matches? ] unit-test
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||||
[ t ] [ "a" "a*" <regexp> matches? ] unit-test
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||||
[ t ] [ "aaaaaaa" "a*" <regexp> matches? ] unit-test
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||||
[ f ] [ "ab" "a*" <regexp> matches? ] unit-test
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||||
|
||||
[ t ] [ "abc" "abc" <regexp> matches? ] unit-test
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||||
[ t ] [ "a" "a|b|c" <regexp> matches? ] unit-test
|
||||
[ t ] [ "b" "a|b|c" <regexp> matches? ] unit-test
|
||||
[ t ] [ "c" "a|b|c" <regexp> matches? ] unit-test
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||||
[ f ] [ "c" "d|e|f" <regexp> matches? ] unit-test
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|
||||
[ f ] [ "aa" "a|b|c" <regexp> matches? ] unit-test
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||||
[ f ] [ "bb" "a|b|c" <regexp> matches? ] unit-test
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||||
[ f ] [ "cc" "a|b|c" <regexp> matches? ] unit-test
|
||||
[ f ] [ "cc" "d|e|f" <regexp> matches? ] unit-test
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||||
|
||||
[ f ] [ "" "a+" <regexp> matches? ] unit-test
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||||
[ t ] [ "a" "a+" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aa" "a+" <regexp> matches? ] unit-test
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||||
|
||||
[ t ] [ "" "a?" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "a?" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aa" "a?" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" "." <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "." <regexp> matches? ] unit-test
|
||||
[ t ] [ "." "." <regexp> matches? ] unit-test
|
||||
! [ f ] [ "\n" "." <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" ".+" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" ".+" <regexp> matches? ] unit-test
|
||||
[ t ] [ "ab" ".+" <regexp> matches? ] unit-test
|
||||
|
||||
|
||||
[ t ] [ "" "a|b*|c+|d?" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "a|b*|c+|d?" <regexp> matches? ] unit-test
|
||||
[ t ] [ "c" "a|b*|c+|d?" <regexp> matches? ] unit-test
|
||||
[ t ] [ "cc" "a|b*|c+|d?" <regexp> matches? ] unit-test
|
||||
[ f ] [ "ccd" "a|b*|c+|d?" <regexp> matches? ] unit-test
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||||
[ t ] [ "d" "a|b*|c+|d?" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "foo" "foo|bar" <regexp> matches? ] unit-test
|
||||
[ t ] [ "bar" "foo|bar" <regexp> matches? ] unit-test
|
||||
[ f ] [ "foobar" "foo|bar" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" "(a)" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "(a)" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aa" "(a)" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aa" "(a*)" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "aababaaabbac" "(a|b)+" <regexp> matches? ] unit-test
|
||||
[ t ] [ "ababaaabba" "(a|b)+" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" "a{1}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "a{1}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aa" "a{1}" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "a" "a{2,}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aaa" "a{2,}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aaaa" "a{2,}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aaaaa" "a{2,}" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "" "a{,2}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "a{,2}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aa" "a{,2}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aaa" "a{,2}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aaaa" "a{,2}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aaaaa" "a{,2}" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" "a{1,3}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "a{1,3}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aa" "a{1,3}" <regexp> matches? ] unit-test
|
||||
[ t ] [ "aaa" "a{1,3}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "aaaa" "a{1,3}" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" "[a]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[a]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[abc]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "b" "[a]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "d" "[abc]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "ab" "[abc]{1,2}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "abc" "[abc]{1,2}" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "" "[^a]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "a" "[^a]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "a" "[^abc]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "b" "[^a]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "d" "[^abc]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "ab" "[^abc]{1,2}" <regexp> matches? ] unit-test
|
||||
[ f ] [ "abc" "[^abc]{1,2}" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "]" "[]]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "]" "[^]]" <regexp> matches? ] unit-test
|
||||
|
||||
! [ "^" "[^]" <regexp> matches? ] must-fail
|
||||
[ t ] [ "^" "[]^]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "]" "[]^]" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "[" "[[]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "^" "[^^]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[^^]" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "-" "[-]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "a" "[-]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "-" "[^-]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[^-]" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "-" "[-a]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[-a]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "-" "[a-]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[a-]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "b" "[a-]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "-" "[^-]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[^-]" <regexp> matches? ] unit-test
|
||||
|
||||
[ f ] [ "-" "[a-c]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "-" "[^a-c]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "b" "[a-c]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "b" "[^a-c]" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "-" "[a-c-]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "-" "[^a-c-]" <regexp> matches? ] unit-test
|
||||
|
||||
[ t ] [ "\\" "[\\\\]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "a" "[\\\\]" <regexp> matches? ] unit-test
|
||||
[ f ] [ "\\" "[^\\\\]" <regexp> matches? ] unit-test
|
||||
[ t ] [ "a" "[^\\\\]" <regexp> matches? ] unit-test
|
||||
|
||||
|
||||
! ((A)(B(C)))
|
||||
! 1. ((A)(B(C)))
|
||||
! 2. (A)
|
||||
! 3. (B(C))
|
||||
! 4. (C)
|
||||
|
|
@ -0,0 +1,547 @@
|
|||
! 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 ;
|
||||
IN: regexp4
|
||||
|
||||
SYMBOLS: eps start-state final-state beginning-of-text
|
||||
end-of-text left-paren right-paren alternation ;
|
||||
|
||||
SYMBOL: runtim-epsilon
|
||||
|
||||
TUPLE: regexp raw paren-count bracket-count
|
||||
state stack nfa new-states dfa minimized-dfa
|
||||
dot-matches-newlines? character-sets capture-group
|
||||
captured-groups ;
|
||||
|
||||
TUPLE: capture-group n range ;
|
||||
|
||||
ERROR: paren-underflow ;
|
||||
ERROR: unbalanced-paren ;
|
||||
|
||||
: 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-paren-underflow ( regexp -- )
|
||||
paren-count>> 0 < [ paren-underflow ] when ;
|
||||
|
||||
: check-unbalanced-paren ( regexp -- )
|
||||
paren-count>> 0 > [ unbalanced-paren ] 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 ;
|
||||
|
||||
: apply-til-last ( token regexp -- )
|
||||
swap [
|
||||
<reversed> tuck index cut reverse dup pop*
|
||||
] change-stack >r reverse r> 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
|
||||
|
||||
: copy-state ( regexp state n -- )
|
||||
[ copy-state-rows ] with0 with0 times ;
|
||||
|
||||
:: (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 -- )
|
||||
[ (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 ] ;
|
||||
|
||||
: 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 ;
|
||||
|
||||
:: make-nontoken-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?
|
||||
over CHAR: a CHAR: f between? or
|
||||
swap CHAR: A CHAR: F between? or ;
|
||||
|
||||
: control-char? ( n -- ? )
|
||||
dup 0 HEX: 1f between? swap HEX: 7f = or ;
|
||||
|
||||
: punct? ( n -- ? )
|
||||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" member? ;
|
||||
|
||||
: c-identifier-char? ( ch -- ? )
|
||||
dup alpha? swap CHAR: _ = or ;
|
||||
|
||||
: java-blank? ( n -- ? )
|
||||
{
|
||||
CHAR: \s CHAR: \t CHAR: \n
|
||||
HEX: b HEX: 7 CHAR: \r
|
||||
} member? ;
|
||||
|
||||
: java-printable? ( n -- ? )
|
||||
dup alpha? swap punct? or ;
|
||||
|
||||
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 ( regexp -- )
|
||||
next get-char drop
|
||||
3 take oct>
|
||||
dup 255 > [ bad-octal ] when
|
||||
make-nontoken-nfa ;
|
||||
|
||||
ERROR: bad-hex number ;
|
||||
|
||||
: parse-short-hex ( regexp -- )
|
||||
next 2 take hex>
|
||||
dup number? [ bad-hex ] unless
|
||||
make-nontoken-nfa ;
|
||||
|
||||
: parse-long-hex ( regexp -- )
|
||||
next 4 take hex>
|
||||
dup number? [ bad-hex ] unless
|
||||
make-nontoken-nfa ;
|
||||
|
||||
: parse-control-character ( regexp -- )
|
||||
next get-char make-nontoken-nfa ;
|
||||
|
||||
: parse-backreference ( regexp obj -- )
|
||||
2drop ;
|
||||
|
||||
: dot-construction ( regexp -- )
|
||||
[ CHAR: \n = not ] make-nontoken-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 ;
|
||||
|
||||
: take-until-]
|
||||
[ get-char CHAR: ] = ] take-until ;
|
||||
|
||||
: make-character-set ( regexp str -- )
|
||||
dup
|
||||
[ length 1 > ] [ first CHAR: ^ = ] bi and
|
||||
[ rest t ] [ f ] if
|
||||
>r [ member? ] curry r>
|
||||
[ [ not ] compose ] when make-nontoken-nfa ;
|
||||
|
||||
: parse-escaped ( regexp -- )
|
||||
next get-char {
|
||||
{ CHAR: \ [ CHAR: \ make-nontoken-nfa ] }
|
||||
{ CHAR: t [ CHAR: \t make-nontoken-nfa ] }
|
||||
{ CHAR: n [ CHAR: \n make-nontoken-nfa ] }
|
||||
{ CHAR: r [ CHAR: \r make-nontoken-nfa ] }
|
||||
{ CHAR: f [ HEX: c make-nontoken-nfa ] }
|
||||
{ CHAR: a [ HEX: 7 make-nontoken-nfa ] }
|
||||
{ CHAR: e [ HEX: 1b make-nontoken-nfa ] }
|
||||
|
||||
{ CHAR: d [ [ digit? ] make-nontoken-nfa ] }
|
||||
{ CHAR: D [ [ digit? not ] make-nontoken-nfa ] }
|
||||
{ CHAR: s [ [ java-blank? ] make-nontoken-nfa ] }
|
||||
{ CHAR: S [ [ java-blank? not ] make-nontoken-nfa ] }
|
||||
{ CHAR: w [ [ c-identifier-char? ] make-nontoken-nfa ] }
|
||||
{ CHAR: W [ [ c-identifier-char? not ] make-nontoken-nfa ] }
|
||||
|
||||
{ CHAR: p [ parse-posix-class make-nontoken-nfa ] }
|
||||
{ CHAR: P [ parse-posix-class [ not ] compose make-nontoken-nfa ] }
|
||||
{ CHAR: x [ parse-short-hex ] }
|
||||
{ CHAR: u [ parse-long-hex ] }
|
||||
{ CHAR: 0 [ parse-octal ] }
|
||||
{ CHAR: c [ parse-control-character ] }
|
||||
|
||||
! { CHAR: Q [ quot til \E ] }
|
||||
! { CHAR: E [ should be an error, parse this in the Q if exists ] }
|
||||
|
||||
! { 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
|
||||
[ dup digit? [ parse-backreference ] [ make-nontoken-nfa ] if ]
|
||||
} case ;
|
||||
|
||||
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-paren-count left-paren push-stack ] }
|
||||
{ CHAR: ) [ drop [ 1- ] change-paren-count left-paren 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 parse-character-set ] }
|
||||
! { CHAR: } [ drop drop "brace" ] }
|
||||
! { CHAR: ? [ drop ] }
|
||||
{ CHAR: . [ drop dot-construction ] }
|
||||
{ beginning-of-text [ push-stack ] }
|
||||
{ end-of-text [
|
||||
drop {
|
||||
[ check-unbalanced-paren ]
|
||||
[ concatenation-loop ]
|
||||
[ beginning-of-text apply-til-last ]
|
||||
[ set-start-state ]
|
||||
} cleave
|
||||
] }
|
||||
[ drop make-nontoken-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 >>paren-count
|
||||
-1 >>state
|
||||
V{ } clone >>stack
|
||||
V{ } clone >>character-sets
|
||||
<vector-table> >>nfa
|
||||
dup [ parse-raw-regexp ] [ subset-construction ] bi ;
|
||||
|
||||
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* ;
|
||||
|
||||
|
||||
|
||||
! character classes
|
||||
! TUPLE: range-class from to ;
|
||||
! TUPLE: or-class left right ;
|
||||
|
||||
! (?:a|b)* <- does not capture
|
||||
! (a|b)*\1 <- group captured
|
||||
! (?!abba) negative lookahead matches ababa but not abbaa
|
||||
! (?=abba) positive lookahead matches abbaaa but not abaaa
|
||||
|
|
@ -0,0 +1 @@
|
|||
Doug Coleman
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
USING: kernel tables tools.test ;
|
||||
IN: tables.tests
|
||||
|
||||
: test-table
|
||||
<table>
|
||||
"a" "c" "z" <entry> over set-entry
|
||||
"a" "o" "y" <entry> over set-entry
|
||||
"a" "l" "x" <entry> over set-entry
|
||||
"b" "o" "y" <entry> over set-entry
|
||||
"b" "l" "x" <entry> over set-entry
|
||||
"b" "s" "u" <entry> over set-entry ;
|
||||
|
||||
[
|
||||
T{ table f
|
||||
H{
|
||||
{ "a" H{ { "l" "x" } { "c" "z" } { "o" "y" } } }
|
||||
{ "b" H{ { "l" "x" } { "s" "u" } { "o" "y" } } }
|
||||
}
|
||||
H{ { "l" t } { "s" t } { "c" t } { "o" t } } }
|
||||
] [ test-table ] unit-test
|
||||
|
||||
[ "x" t ] [ "a" "l" test-table get-entry ] unit-test
|
||||
[ "har" t ] [
|
||||
"a" "z" "har" <entry> test-table [ set-entry ] keep
|
||||
>r "a" "z" r> get-entry
|
||||
] unit-test
|
||||
|
||||
: vector-test-table
|
||||
<vector-table>
|
||||
"a" "c" "z" <entry> over add-value
|
||||
"a" "c" "r" <entry> over add-value
|
||||
"a" "o" "y" <entry> over add-value
|
||||
"a" "l" "x" <entry> over add-value
|
||||
"b" "o" "y" <entry> over add-value
|
||||
"b" "l" "x" <entry> over add-value
|
||||
"b" "s" "u" <entry> over add-value ;
|
||||
|
||||
[
|
||||
T{ vector-table f
|
||||
H{
|
||||
{ "a"
|
||||
H{ { "l" "x" } { "c" V{ "z" "r" } } { "o" "y" } } }
|
||||
{ "b"
|
||||
H{ { "l" "x" } { "s" "u" } { "o" "y" } } }
|
||||
}
|
||||
H{ { "l" t } { "s" t } { "c" t } { "o" t } }
|
||||
}
|
||||
] [ vector-test-table ] unit-test
|
||||
|
||||
|
|
@ -0,0 +1,123 @@
|
|||
! Copyright (C) 2008 Doug Coleman.
|
||||
! See http://factorcode.org/license.txt for BSD license.
|
||||
USING: kernel namespaces sequences vectors assocs accessors ;
|
||||
IN: state-tables
|
||||
|
||||
TUPLE: table rows columns start-state final-states ;
|
||||
TUPLE: entry row-key column-key value ;
|
||||
|
||||
GENERIC: add-entry ( entry table -- )
|
||||
|
||||
: make-table ( class -- obj )
|
||||
new
|
||||
H{ } clone >>rows
|
||||
H{ } clone >>columns
|
||||
H{ } clone >>final-states ;
|
||||
|
||||
: <table> ( -- obj )
|
||||
table make-table ;
|
||||
|
||||
C: <entry> entry
|
||||
|
||||
: (add-row) ( row-key table -- row )
|
||||
2dup rows>> at* [
|
||||
2nip
|
||||
] [
|
||||
drop H{ } clone [ -rot rows>> set-at ] keep
|
||||
] if ;
|
||||
|
||||
: add-row ( row-key table -- )
|
||||
(add-row) drop ;
|
||||
|
||||
: add-column ( column-key table -- )
|
||||
t -rot columns>> set-at ;
|
||||
|
||||
: set-row ( row row-key table -- )
|
||||
rows>> set-at ;
|
||||
|
||||
: lookup-row ( row-key table -- row/f ? )
|
||||
rows>> at* ;
|
||||
|
||||
: row-exists? ( row-key table -- ? )
|
||||
lookup-row nip ;
|
||||
|
||||
: lookup-column ( column-key table -- column/f ? )
|
||||
columns>> at* ;
|
||||
|
||||
: column-exists? ( column-key table -- ? )
|
||||
lookup-column nip ;
|
||||
|
||||
ERROR: no-row key ;
|
||||
ERROR: no-column key ;
|
||||
|
||||
: get-row ( row-key table -- row )
|
||||
dupd lookup-row [
|
||||
nip
|
||||
] [
|
||||
drop no-row
|
||||
] if ;
|
||||
|
||||
: get-column ( column-key table -- column )
|
||||
dupd lookup-column [
|
||||
nip
|
||||
] [
|
||||
drop no-column
|
||||
] if ;
|
||||
|
||||
: get-entry ( row-key column-key table -- obj ? )
|
||||
swapd lookup-row [
|
||||
at*
|
||||
] [
|
||||
2drop f f
|
||||
] if ;
|
||||
|
||||
: (set-entry) ( entry table -- value column-key row )
|
||||
[ >r column-key>> r> add-column ] 2keep
|
||||
dupd >r row-key>> r> (add-row)
|
||||
>r [ value>> ] keep column-key>> r> ;
|
||||
|
||||
: set-entry ( entry table -- )
|
||||
(set-entry) set-at ;
|
||||
|
||||
: delete-entry ( entry table -- )
|
||||
>r [ column-key>> ] [ row-key>> ] bi r>
|
||||
lookup-row [ delete-at ] [ 2drop ] if ;
|
||||
|
||||
: swap-rows ( row-key1 row-key2 table -- )
|
||||
[ tuck get-row >r get-row r> ] 3keep
|
||||
>r >r rot r> r> [ set-row ] keep set-row ;
|
||||
|
||||
: member?* ( obj obj -- bool )
|
||||
2dup = [ 2drop t ] [ member? ] if ;
|
||||
|
||||
: find-by-column ( column-key data table -- seq )
|
||||
swapd 2dup lookup-column 2drop
|
||||
[
|
||||
rows>> [
|
||||
pick swap at* [
|
||||
>r pick r> member?* [ , ] [ drop ] if
|
||||
] [
|
||||
2drop
|
||||
] if
|
||||
] assoc-each
|
||||
] { } make 2nip ;
|
||||
|
||||
|
||||
TUPLE: vector-table < table ;
|
||||
: <vector-table> ( -- obj )
|
||||
vector-table make-table ;
|
||||
|
||||
: add-hash-vector ( value key hash -- )
|
||||
2dup at* [
|
||||
dup vector? [
|
||||
2nip push
|
||||
] [
|
||||
V{ } clone [ push ] keep
|
||||
-rot >r >r [ push ] keep r> r> set-at
|
||||
] if
|
||||
] [
|
||||
drop set-at
|
||||
] if ;
|
||||
|
||||
M: vector-table add-entry ( entry table -- )
|
||||
(set-entry) add-hash-vector ;
|
||||
|
|
@ -12,3 +12,16 @@ C-STRUCT: addrinfo
|
|||
{ "char*" "canonname" }
|
||||
{ "void*" "addr" }
|
||||
{ "addrinfo*" "next" } ;
|
||||
|
||||
C-STRUCT: passwd
|
||||
{ "char*" "pw_name" }
|
||||
{ "char*" "pw_passwd" }
|
||||
{ "uid_t" "pw_uid" }
|
||||
{ "gid_t" "pw_gid" }
|
||||
{ "time_t" "pw_change" }
|
||||
{ "char*" "pw_class" }
|
||||
{ "char*" "pw_gecos" }
|
||||
{ "char*" "pw_dir" }
|
||||
{ "char*" "pw_shell" }
|
||||
{ "time_t" "pw_expire" }
|
||||
{ "int" "pw_fields" } ;
|
||||
|
|
|
|||
|
|
@ -84,3 +84,12 @@ C-STRUCT: sockaddr-un
|
|||
: SEEK_SET 0 ; inline
|
||||
: SEEK_CUR 1 ; inline
|
||||
: SEEK_END 2 ; inline
|
||||
|
||||
C-STRUCT: passwd
|
||||
{ "char*" "pw_name" }
|
||||
{ "char*" "pw_passwd" }
|
||||
{ "uid_t" "pw_uid" }
|
||||
{ "gid_t" "pw_gid" }
|
||||
{ "char*" "pw_gecos" }
|
||||
{ "char*" "pw_dir" }
|
||||
{ "char*" "pw_shell" } ;
|
||||
|
|
|
|||
|
|
@ -34,19 +34,6 @@ C-STRUCT: group
|
|||
{ "int" "gr_gid" }
|
||||
{ "char**" "gr_mem" } ;
|
||||
|
||||
C-STRUCT: passwd
|
||||
{ "char*" "pw_name" }
|
||||
{ "char*" "pw_passwd" }
|
||||
{ "uid_t" "pw_uid" }
|
||||
{ "gid_t" "pw_gid" }
|
||||
{ "time_t" "pw_change" }
|
||||
{ "char*" "pw_class" }
|
||||
{ "char*" "pw_gecos" }
|
||||
{ "char*" "pw_dir" }
|
||||
{ "char*" "pw_shell" }
|
||||
{ "time_t" "pw_expire" }
|
||||
{ "int" "pw_fields" } ;
|
||||
|
||||
LIBRARY: factor
|
||||
|
||||
FUNCTION: void clear_err_no ( ) ;
|
||||
|
|
|
|||
Loading…
Reference in New Issue