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