1 ! Copyright (C) 2007 Daniel Ehrenberg
2 ! See https://factorcode.org/license.txt for BSD license.
3 USING: accessors kernel lexer make math namespaces parser
4 quotations sequences strings.parser.private words ;
9 : rest-of-line ( lexer -- seq )
10 [ line-text>> ] [ column>> ] bi tail ;
12 : next-line-text ( lexer -- str ? )
13 [ next-line ] [ line-text>> ] [ still-parsing? ] tri ;
15 : (parse-here) ( lexer -- )
19 [ % CHAR: \n , (parse-here) ] if
20 ] [ ";" throw-unexpected-eof ] if ;
24 ERROR: text-found-before-eol string ;
26 : parse-here ( -- str )
29 dup rest-of-line [ text-found-before-eol ] unless-empty
36 ( -- string ) define-inline ;
40 :: (scan-multiline-string) ( i end lexer -- j )
41 lexer line-text>> :> text
42 lexer still-parsing? [
43 i text end subseq-index-from [| j |
44 i j text subseq % j end length +
46 text i index-or-length tail % CHAR: \n ,
48 0 end lexer (scan-multiline-string)
50 ] [ end throw-unexpected-eof ] if ;
52 :: (parse-multiline-string) ( end-text lexer skip-n-chars -- str )
55 [ skip-n-chars + end-text lexer (scan-multiline-string) ]
56 change-column check-space
59 : advance-same-line ( lexer text -- )
60 length [ + ] curry change-column drop ;
64 : parse-multiline-string ( end-text -- str )
65 lexer get 1 (parse-multiline-string) ;
67 SYNTAX: /* "*/" parse-multiline-string drop ;
69 SYNTAX: (( "))" parse-multiline-string drop ;
71 SYNTAX: [[ "]]" parse-multiline-string suffix! ;
72 SYNTAX: [=[ "]=]" parse-multiline-string suffix! ;
73 SYNTAX: [==[ "]==]" parse-multiline-string suffix! ;
74 SYNTAX: [===[ "]===]" parse-multiline-string suffix! ;
75 SYNTAX: [====[ "]====]" parse-multiline-string suffix! ;
76 SYNTAX: [=====[ "]=====]" parse-multiline-string suffix! ;
77 SYNTAX: [======[ "]======]" parse-multiline-string suffix! ;
79 SYNTAX: ![[ "]]" parse-multiline-string drop ;
80 SYNTAX: ![=[ "]=]" parse-multiline-string drop ;
81 SYNTAX: ![==[ "]==]" parse-multiline-string drop ;
82 SYNTAX: ![===[ "]===]" parse-multiline-string drop ;
83 SYNTAX: ![====[ "]====]" parse-multiline-string drop ;
84 SYNTAX: ![=====[ "]=====]" parse-multiline-string drop ;
85 SYNTAX: ![======[ "]======]" parse-multiline-string drop ;