1: \ wiki forth
2:
3: require string.fs
4:
5: : -scan ( addr u char -- addr' u' )
6: >r BEGIN dup WHILE 1- 2dup + c@ r@ = UNTIL THEN
7: rdrop ;
8: : -$split ( addr u char -- addr1 u1 addr2 u2 )
9: >r 2dup r@ -scan 2dup + c@ r> = negate over + >r
10: 2swap r> /string ;
11:
12: \ tag handling
13:
14: : .' '' parse postpone SLiteral postpone type ; immediate
15: : s' '' parse postpone SLiteral ; immediate
16:
17: Variable tag-option
18: s" " tag-option $!
19:
20: : tag ( addr u -- ) '< emit type tag-option $@ type '> emit
21: s" " tag-option $! ;
22: : /tag ( addr u -- ) '< emit '/ emit type '> emit ;
23: : tagged ( addr1 u1 addr2 u2 -- ) 2dup 2>r tag type 2r> /tag ;
24:
25: : opt ( addr u opt u -- ) s" " tag-option $+!
26: tag-option $+! s' ="' tag-option $+! tag-option $+!
27: s' "' tag-option $+! ;
28: : href= ( addr u -- ) s" href" opt ;
29: : name= ( addr u -- ) s" name" opt ;
30: : src= ( addr u -- ) s" src" opt ;
31: : alt= ( addr u -- ) s" alt" opt ;
32: : width= ( addr u -- ) s" width" opt ;
33: : height= ( addr u -- ) s" height" opt ;
34: : align= ( addr u -- ) s" align" opt ;
35: : mailto: ( addr u -- ) s' href="mailto:' tag-option $+!
36: tag-option $+! s' "' tag-option $+! ;
37:
38: \ environment handling
39:
40: Variable end-sec
41: Variable oldenv
42: Variable envs 30 0 [DO] 0 , [LOOP]
43:
44: : env$ ( -- addr ) envs dup @ 1+ cells + ;
45: : env ( addr u -- ) env$ $! ;
46: : env? ( -- ) envs @ oldenv @
47: 2dup > IF env$ $@ tag THEN
48: 2dup < IF env$ cell+ $@ /tag env$ cell+ $off THEN
49: drop oldenv ! ;
50: : +env 1 envs +! ;
51: : -env end-sec @ envs @ 2 > or IF -1 envs +! env? THEN ;
52: : -envs envs @ 0 ?DO -env cr LOOP ;
53: : >env ( addr u -- ) +env env env? ;
54:
55: \ alignment
56:
57: Variable table-format
58: Variable table#
59: Variable table-start
60:
61: : >align ( c -- )
62: CASE
63: 'l OF s" left" align= ENDOF
64: 'r OF s" right" align= ENDOF
65: 'c OF s" center" align= ENDOF
66: '< OF s" left" align= ENDOF
67: '> OF s" right" align= ENDOF
68: '= OF s" center" align= ENDOF
69: digit? IF 0 <# #S #> s" rowspan" opt
70: table# @ 1+ table-start ! THEN 0
71: ENDCASE ;
72:
73: : >border ( c -- )
74: case
75: '- of s" 0" s" border" opt endof
76: '+ of s" 1" s" border" opt endof
77: endcase ;
78:
79: \ image handling
80:
81: Create imgbuf $20 allot
82:
83: Create pngsig $89 c, $50 c, $4E c, $47 c, $0D c, $0A c, $1A c, $0A c,
84: Create jfif $FF c, $D8 c, $FF c, $E0 c, $00 c, $10 c, $4A c, $46 c,
85: $49 c, $46 c,
86:
87: : b@ ( addr -- x ) 0 swap 4 bounds ?DO 8 lshift I c@ + LOOP ;
88: : bw@ ( addr -- x ) 0 swap 2 bounds ?DO 8 lshift I c@ + LOOP ;
89:
90: : gif? ( -- flag )
91: s" GIF89a" imgbuf over compare 0=
92: s" GIF87a" imgbuf over compare 0= or ;
93: : gif-size ( -- w h )
94: imgbuf 8 + c@ imgbuf 9 + c@ 8 lshift +
95: imgbuf 6 + c@ imgbuf 7 + c@ 8 lshift + ;
96:
97: : png? ( -- flag )
98: pngsig 8 imgbuf over compare 0= ;
99: : png-size ( -- w h )
100: imgbuf $14 + b@ imgbuf $10 + b@ ;
101:
102: : jpg? ( -- flag )
103: jfif 10 imgbuf over compare 0= ;
104: : jpg-size ( fd -- w h ) >r
105: 2. BEGIN
106: 2dup r@ reposition-file throw
107: imgbuf $10 r@ read-file throw 0<>
108: imgbuf bw@ $FFC0 $FFD0 within 0= and WHILE
109: imgbuf 2 + bw@ 2 + 0 d+ REPEAT
110: 2drop imgbuf 5 + bw@ imgbuf 7 + bw@ rdrop ;
111:
112: : img-size ( fd -- w h ) >r
113: gif? IF gif-size rdrop EXIT THEN
114: jpg? IF r> jpg-size EXIT THEN
115: png? IF png-size rdrop EXIT THEN
116: 0 0 ;
117:
118: : .img-size ( addr u -- )
119: r/o open-file IF drop EXIT THEN >r
120: imgbuf $20 r@ read-file throw drop
121: r@ img-size
122: r> close-file throw
123: ?dup IF 0 <# #S #> width= THEN
124: ?dup IF 0 <# #S #> height= THEN ;
125:
126: \ link creation
127:
128: Variable link
129: Variable link-sig
130: Variable link-suffix
131: Variable iconpath
132:
133: Variable do-size
134: Variable do-icon
135:
136: Defer parse-line
137:
138: : .img ( addr u -- ) dup >r '| -$split dup r> = IF 2swap THEN
139: dup IF 2swap alt= ELSE 2drop THEN
140: tag-option $@len >r over c@ >align tag-option $@len r> = 1+ /string
141: tag-option $@len >r over c@ >border tag-option $@len r> = 1+ /string
142: 2dup .img-size src= s" img" tag ;
143: : >img ( -- ) '{ parse type '} parse .img ;
144:
145: : alt-suffix ( -- )
146: link-suffix $@len 2 - link-suffix $!len
147: s" [" link-suffix 0 $ins
148: s" ]" link-suffix $+!
149: link-suffix $@ alt= ;
150:
151: : get-icon ( addr u -- ) iconpath @ IF 2drop EXIT THEN
152: link-suffix $! s" .*" link-suffix $+!
153: s" icons" open-dir throw >r
154: BEGIN
155: pad $100 r@ read-dir throw WHILE
156: pad swap 2dup link-suffix $@ filename-match
157: IF s" icons/" iconpath $! iconpath $+!
158: iconpath $@ 2dup .img-size src= '- >border
159: alt-suffix s" img" tag true
160: ELSE 2drop false THEN
161: UNTIL ELSE drop THEN
162: r> close-dir throw ;
163:
164: : link-icon? ( -- ) do-icon @ 0= ?EXIT
165: iconpath @ IF iconpath $off THEN
166: link $@ + 1- c@ '/ = IF s" index.html" ELSE link $@ THEN
167: BEGIN '. $split 2swap 2drop dup WHILE
168: 2dup get-icon REPEAT 2drop ;
169:
170: : link-size? ( -- ) do-size @ 0= ?EXIT
171: link $@ r/o open-file IF drop EXIT THEN >r
172: r@ file-size throw $400 um/mod nip ." (" 0 u.r ." k)"
173: r> close-file throw ;
174:
175: : link-sig? ( -- )
176: link $@ link-sig $! s" .sig" link-sig $+!
177: link-sig $@ r/o open-file IF drop EXIT THEN
178: close-file throw
179: ." (" link-sig $@ href= s" a" tag
180: s" |-icons/sig.gif" .img ." sig" s" /a" tag ." )" ;
181:
182: : link-options ( addr u -- addr' u' )
183: do-size off do-icon on
184: over c@ '% = over 0> and IF do-size on 1 /string THEN
185: over c@ '\ = over 0> and IF do-icon off 1 /string THEN ;
186:
187: : parse-string ( addr u -- )
188: evaluate-input cell new-tib #tib ! tib !
189: ['] parse-line catch pop-file throw ;
190:
191: : .link ( addr u -- ) dup >r '| -$split dup r> = IF 2swap THEN
192: link-options link $!
193: link $@len 0= IF 2dup link $! s" .html" link $+! THEN
194: link $@ href= s" a" tag link-icon?
195: parse-string s" a" /tag link-size? link-sig? ;
196: : >link ( -- ) '[ parse type '] parse .link ;
197:
198: \ line handling
199:
200: : char? ( -- c ) >in @ char swap >in ! ;
201: : parse-tag ( addr u char -- )
202: >r r@ parse type
203: r> parse 2swap tagged ;
204:
205: : .text ( -- ) >in @ >r char drop
206: source r@ /string >in @ r> - nip
207: bounds ?DO I c@
208: case
209: '& of ." &" endof
210: '< of ." <" endof
211: dup emit
212: endcase
213: LOOP ;
214:
215: Create do-words $100 0 [DO] ' .text , [LOOP]
216:
217: :noname '( emit 1 >in +! ; '( cells do-words + !
218:
219: : bind-char ( xt -- ) char cells do-words + ! ;
220:
221: : char>tag ( -- ) char >r
222: :noname bl sword postpone SLiteral r@ postpone Literal
223: postpone parse-tag postpone ; r> cells do-words + ! ;
224:
225: : >tag '\ parse type '\ parse tag ;
226:
227: char>tag * b
228: char>tag _ em
229: char>tag # code
230:
231: ' >link bind-char [
232: ' >img bind-char {
233: ' >tag bind-char \
234:
235: : do-word ( char -- ) cells do-words + perform ;
236:
237: : word? ( -- addr u ) >in @ >r bl sword r> >in ! ;
238:
239: wordlist Constant autoreplacements
240:
241: :noname ( -- )
242: BEGIN char? do-word source nip >in @ = UNTIL ; is parse-line
243:
244: : parse-line+ ( -- )
245: BEGIN
246: word? autoreplacements search-wordlist
247: IF execute bl sword 2drop
248: source >in @ 1- /string drop c@ bl = >in +!
249: ELSE char? do-word THEN
250: source nip >in @ = UNTIL ;
251:
252: : parse-to ( char -- ) >r
253: BEGIN char? dup r@ <> WHILE
254: do-word source nip >in @ = UNTIL ELSE drop THEN
255: r> parse type ;
256:
257: \ autoreplace
258:
259: : autoreplace ( <[string|url]> -- )
260: get-current autoreplacements set-current
261: Create set-current
262: here 0 , '[ parse 2drop '] parse rot $!
263: DOES> $@ .link ;
264:
265: \ paragraph handling
266:
267: : parse-par ( -- )
268: BEGIN parse-line+ cr refill WHILE
269: source nip 0= UNTIL THEN ;
270:
271: : par ( addr u -- ) env? 2dup tag parse-par /tag cr cr ;
272: : line ( addr u -- ) env? 2dup tag parse-line+ /tag cr cr ;
273:
274: \ scan strings
275:
276: : get-rest ( addr -- ) 0 parse -trailing rot $! ;
277: Create $lf 1 c, #lf c,
278: : get-par ( addr -- ) >r s" " r@ $+!
279: BEGIN 0 parse 2dup s" ." compare WHILE
280: r@ $@len IF $lf count r@ $+! THEN r@ $+!
281: refill 0= UNTIL ELSE 2drop THEN
282: rdrop ;
283:
284: \ toc handling
285:
286: Variable toc-link
287:
288: : >last ( addr link -- link' )
289: BEGIN dup @ WHILE @ REPEAT ! 0 ;
290:
291: : toc, ( n -- ) , 0 parse '| -$split 2swap here 0 , $! here 0 , $! ;
292: : up-toc align here toc-link >last , 0 toc, ;
293: : top-toc align here toc-link >last , 1 toc, ;
294: : this-toc align here toc-link >last , 2 toc, ;
295: : sub-toc align here toc-link >last , 3 toc, ;
296: : new-toc toc-link off ;
297:
298: Variable toc-name
299:
300: : .toc-entry ( toc flag -- )
301: swap cell+ dup @ swap cell+ dup cell+ $@ 2dup href= s" a" tag
302: '# scan 1 /string toc-name $@ compare >r
303: $@ .img swap
304: IF
305: case
306: 2 of s" ^]|-icons/arrow_up.jpg" .img endof
307: 3 of
308: r@ 0= IF s" *]|-icons/circle.jpg"
309: ELSE s" v]|-icons/arrow_down.jpg" THEN .img endof
310: endcase
311: ELSE
312: case
313: 0 of s" ^]|-icons/arrow_up.jpg" .img endof
314: 1 of s" >]|-icons/arrow_right.jpg" .img endof
315: 2 of s" *]|-icons/circle.jpg" .img endof
316: 3 of s" v]|-icons/arrow_down.jpg" .img endof
317: endcase
318: THEN
319: s" a" /tag rdrop
320: ;
321: : print-toc ( -- ) cr 0 parse
322: dup 0= IF toc-name $! 0 ELSE
323: toc-name $! toc-name $@ name= s" " s" a" tagged 2
324: THEN >r
325: toc-link BEGIN @ dup WHILE
326: dup cell+ @ 3 = r@ 0= and IF rdrop 1 >r s" br" tag cr THEN
327: dup cell+ @ r@ >= IF dup r@ 2 = .toc-entry THEN
328: dup cell+ @ 2 = r@ 2 = and IF s" br" tag cr THEN
329: REPEAT drop rdrop cr ;
330:
331: \ handle global tags
332:
333: Variable indentlevel
334: : indent ( n -- ) indentlevel @ over indentlevel !
335: 2dup < IF swap DO -env -env LOOP EXIT THEN
336: 2dup > IF DO s" dl" >env s" dt" >env LOOP EXIT THEN
337: 2dup = IF drop IF -env s" dt" >env THEN THEN ;
338: : +indent ( -- ) indentlevel @ IF -env s" dd" >env THEN ;
339:
340: wordlist constant longtags
341:
342: longtags set-current
343:
344: : --- 0 indent cr s" hr" tag cr +indent ;
345: : * 1 indent s" h1" line +indent ;
346: : ** 1 indent s" h2" line +indent ;
347: : *** 2 indent s" h3" line +indent ;
348: : -- 0 indent cr print-toc ;
349: : && 0 parse name= s" " s" a" tagged ;
350: : - s" ul" env s" li" par ;
351: : + s" ol" env s" li" par ;
352: : << +env ;
353: : <* s" center" >env ;
354: : <red s" #ff0000" s" color" opt s" font" >env ;
355: : red> -env ;
356: : >> -env ;
357: : *> -env ;
358: : :: interpret ;
359: : . end-sec on 0 indent ;
360: : :code s" pre" >env
361: BEGIN source >in @ /string type cr refill WHILE
362: source s" :endcode" compare 0= UNTIL THEN
363: -env ;
364: : \ postpone \ ;
365:
366: definitions
367:
368: \ Table
369:
370: : |tag table-format $@ table# @ /string drop c@ >align
371: >env 1 table# +! ;
372: : |d table# @ table-start @ > IF -env THEN s" td" |tag ;
373: : |h table# @ table-start @ > IF -env THEN s" th" |tag ;
374: : |line s" tr" >env table-start @ table# ! ;
375: : line| -env -env cr ;
376:
377: : next-char ( -- char ) source drop >in @ + c@ ;
378:
379: longtags set-current
380:
381: : <| bl sword table-format $! table-start off bl sword
382: dup IF s" border" opt ELSE 2drop THEN s" table" >env ;
383: : |> -env -env cr cr ;
384: : +| |line
385: BEGIN
386: |h '| parse-to next-char '+ = UNTIL line| ;
387: : -| |line
388: BEGIN
389: |d '| parse-to next-char '- = UNTIL line| ;
390:
391: definitions
392:
393: \ parse a section
394:
395: : section-line ( -- ) >in off
396: bl sword longtags search-wordlist
397: IF execute
398: ELSE source nip IF >in off s" p" par THEN THEN ;
399: : refill-loop ( -- ) end-sec off
400: BEGIN refill WHILE
401: section-line end-sec @ UNTIL THEN ;
402: : parse-section ( -- )
403: refill-loop ;
404:
405: \ HTML head
406:
407: : .title ( addr u -- )
408: .' <!doctype html public "-//w3c//dtd html 4.0 transitional//en">' cr
409: s" html" >env s" head" >env
410: .' <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">' cr
411: s" title" tagged cr
412: -env ;
413:
414: \ HTML trailer
415:
416: Variable mail
417: Variable mail-name
418: Variable orig-date
419:
420: : .trailer
421: s" address" >env s" center" >env
422: orig-date @ IF ." Created " orig-date $@ type ." . " THEN
423: ." Last modified: " time&date rot 0 u.r swap 1-
424: s" janfebmaraprmayjunjulaugsepoctnovdec" rot 3 * /string 3 min type
425: 0 u.r ." by "
426: s" Mail|icons/mail.gif" .img mail $@ mailto: mail-name $@ s" a" tagged
427: -envs ;
428:
429: \ top word
430:
431: : parse" ( -- addr u ) '" parse 2drop '" parse ;
432:
433: : maintainer ( -- )
434: bl sword mail $! parse" mail-name $! ;
435: : created ( -- )
436: bl sword orig-date $! ;
437:
438: Variable style$
439: : style> style$ @ 0= IF s" " style$ $! THEN style$ $@ tag-option $! ;
440: : >style tag-option $@ style$ $! s" " tag-option $! ;
441:
442: : style style> opt >style ;
443: : background ( -- ) parse" s" background" style ;
444: : text ( -- ) parse" s" text" style ;
445: warnings @ warnings off
446: : link ( -- ) parse" s" link" style ;
447: warnings !
448: : vlink ( -- ) parse" s" vlink" style ;
449: : marginheight ( -- ) parse" s" marginheight" style ;
450:
451: : wf ( -- )
452: outfile-id >r
453: bl sword r/w create-file throw to outfile-id
454: parse" .title
455: +env style> s" body" env env?
456: ['] parse-section catch .trailer
457: outfile-id close-file throw
458: r> to outfile-id
459: dup 0< IF throw ELSE drop THEN ;
460:
461: : eval-par ( addr u -- )
462: s" wf-temp.wf" r/w create-file throw >r
463: r@ write-file r> close-file throw
464: push-file s" wf-temp.wf" r/o open-file throw loadfile !
465: parse-par parse-section
466: loadfile @ close-file swap 2dup or
467: pop-file drop throw throw
468: s" wf-temp.wf" delete-file throw ;
469:
470: \ simple text data base
471:
472: Variable last-entry
473: Variable field#
474:
475: : table: ( xt n -- ) Create , , 1 field# !
476: DOES> 2@ >in @ >r longtags set-current
477: Create definitions swap , r> >in !
478: here last-entry !
479: dup 0 DO 0 , LOOP
480: 1 DO s" " last-entry @ I cells + $! LOOP
481: last-entry @ get-rest
482: DOES> dup cell+ swap perform ;
483:
484: : field: Create field# @ , 1 field# +!
485: DOES> @ cells last-entry @ + get-rest ;
486: : par: Create field# @ , 1 field# +!
487: DOES> @ cells last-entry @ + get-par ;
488:
489: : >field ' >body @ cells postpone Literal postpone + ; immediate
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