d7482997 |
1 | /* |
2 | * text backend for Halibut |
3 | */ |
4 | |
5 | #include <stdio.h> |
6 | #include <stdlib.h> |
7 | #include <assert.h> |
8 | #include "halibut.h" |
9 | |
10 | typedef enum { LEFT, LEFTPLUS, CENTRE } alignment; |
11 | typedef struct { |
12 | alignment align; |
13 | int just_numbers; |
db662ca1 |
14 | wchar_t *underline; |
63223c78 |
15 | wchar_t *number_suffix; |
d7482997 |
16 | } alignstruct; |
17 | |
18 | typedef struct { |
19 | int indent, indent_code; |
20 | int listindentbefore, listindentafter; |
21 | int width; |
22 | alignstruct atitle, achapter, *asect; |
23 | int nasect; |
24 | int include_version_id; |
25 | int indent_preambles; |
2ac8ceac |
26 | int charset; |
d7482997 |
27 | word bullet; |
db662ca1 |
28 | wchar_t *lquote, *rquote, *rule; |
50d6b4bd |
29 | char *filename; |
db662ca1 |
30 | wchar_t *listsuffix, *startemph, *endemph; |
d7482997 |
31 | } textconfig; |
32 | |
2ac8ceac |
33 | typedef struct { |
34 | FILE *fp; |
35 | int charset; |
36 | charset_state state; |
37 | } textfile; |
38 | |
39 | static void text_heading(textfile *, word *, word *, word *, alignstruct, |
db662ca1 |
40 | int, int, textconfig *); |
41 | static void text_rule(textfile *, int, int, textconfig *); |
42 | static void text_para(textfile *, word *, wchar_t *, word *, int, int, int, |
43 | textconfig *); |
2ac8ceac |
44 | static void text_codepara(textfile *, word *, int, int); |
db662ca1 |
45 | static void text_versionid(textfile *, word *, textconfig *); |
d7482997 |
46 | |
2ac8ceac |
47 | static void text_output(textfile *, const wchar_t *); |
48 | static void text_output_many(textfile *, int, wchar_t); |
d7482997 |
49 | |
50 | static alignment utoalign(wchar_t *p) { |
51 | if (!ustricmp(p, L"centre") || !ustricmp(p, L"center")) |
52 | return CENTRE; |
53 | if (!ustricmp(p, L"leftplus")) |
54 | return LEFTPLUS; |
55 | return LEFT; |
56 | } |
57 | |
58 | static textconfig text_configure(paragraph *source) { |
59 | textconfig ret; |
db662ca1 |
60 | paragraph *p; |
61 | int n; |
d7482997 |
62 | |
63 | /* |
64 | * Non-negotiables. |
65 | */ |
66 | ret.bullet.next = NULL; |
67 | ret.bullet.alt = NULL; |
68 | ret.bullet.type = word_Normal; |
69 | ret.atitle.just_numbers = FALSE; /* ignored */ |
70 | |
71 | /* |
72 | * Defaults. |
73 | */ |
74 | ret.indent = 7; |
75 | ret.indent_code = 2; |
76 | ret.listindentbefore = 1; |
77 | ret.listindentafter = 3; |
78 | ret.width = 68; |
79 | ret.atitle.align = CENTRE; |
db662ca1 |
80 | ret.atitle.underline = L"\x2550\0=\0\0"; |
d7482997 |
81 | ret.achapter.align = LEFT; |
82 | ret.achapter.just_numbers = FALSE; |
e5e6bf9d |
83 | ret.achapter.number_suffix = L": "; |
db662ca1 |
84 | ret.achapter.underline = L"\x203E\0-\0\0"; |
d7482997 |
85 | ret.nasect = 1; |
f1530049 |
86 | ret.asect = snewn(ret.nasect, alignstruct); |
d7482997 |
87 | ret.asect[0].align = LEFTPLUS; |
88 | ret.asect[0].just_numbers = TRUE; |
e5e6bf9d |
89 | ret.asect[0].number_suffix = L" "; |
db662ca1 |
90 | ret.asect[0].underline = L"\0"; |
d7482997 |
91 | ret.include_version_id = TRUE; |
92 | ret.indent_preambles = FALSE; |
db662ca1 |
93 | ret.bullet.text = L"\x2022\0-\0\0"; |
94 | ret.rule = L"\x2500\0-\0\0"; |
50d6b4bd |
95 | ret.filename = dupstr("output.txt"); |
3e030063 |
96 | ret.startemph = L"_\0_\0\0"; |
97 | ret.endemph = uadv(ret.startemph); |
db662ca1 |
98 | ret.listsuffix = L"."; |
2ac8ceac |
99 | ret.charset = CS_ASCII; |
db662ca1 |
100 | /* |
101 | * Default quote characters are Unicode matched single quotes, |
102 | * falling back to the TeXlike `'. |
103 | */ |
104 | ret.lquote = L"\x2018\0\x2019\0`\0'\0\0"; |
105 | ret.rquote = uadv(ret.lquote); |
d7482997 |
106 | |
db662ca1 |
107 | /* |
108 | * Two-pass configuration so that we can pick up global config |
109 | * (e.g. `quotes') before having it overridden by specific |
110 | * config (`text-quotes'), irrespective of the order in which |
111 | * they occur. |
112 | */ |
113 | for (p = source; p; p = p->next) { |
114 | if (p->type == para_Config) { |
115 | if (!ustricmp(p->keyword, L"quotes")) { |
116 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
117 | ret.lquote = uadv(p->keyword); |
118 | ret.rquote = uadv(ret.lquote); |
119 | } |
120 | } |
121 | } |
122 | } |
123 | |
124 | for (p = source; p; p = p->next) { |
125 | if (p->type == para_Config) { |
126 | if (!ustricmp(p->keyword, L"text-indent")) { |
127 | ret.indent = utoi(uadv(p->keyword)); |
128 | } else if (!ustricmp(p->keyword, L"text-charset")) { |
0960a3d8 |
129 | ret.charset = charset_from_ustr(&p->fpos, uadv(p->keyword)); |
db662ca1 |
130 | } else if (!ustricmp(p->keyword, L"text-filename")) { |
50d6b4bd |
131 | sfree(ret.filename); |
db662ca1 |
132 | ret.filename = dupstr(adv(p->origkeyword)); |
133 | } else if (!ustricmp(p->keyword, L"text-indent-code")) { |
134 | ret.indent_code = utoi(uadv(p->keyword)); |
135 | } else if (!ustricmp(p->keyword, L"text-width")) { |
136 | ret.width = utoi(uadv(p->keyword)); |
137 | } else if (!ustricmp(p->keyword, L"text-list-indent")) { |
138 | ret.listindentbefore = utoi(uadv(p->keyword)); |
139 | } else if (!ustricmp(p->keyword, L"text-listitem-indent")) { |
140 | ret.listindentafter = utoi(uadv(p->keyword)); |
141 | } else if (!ustricmp(p->keyword, L"text-chapter-align")) { |
142 | ret.achapter.align = utoalign(uadv(p->keyword)); |
143 | } else if (!ustricmp(p->keyword, L"text-chapter-underline")) { |
144 | ret.achapter.underline = uadv(p->keyword); |
145 | } else if (!ustricmp(p->keyword, L"text-chapter-numeric")) { |
146 | ret.achapter.just_numbers = utob(uadv(p->keyword)); |
147 | } else if (!ustricmp(p->keyword, L"text-chapter-suffix")) { |
148 | ret.achapter.number_suffix = uadv(p->keyword); |
149 | } else if (!ustricmp(p->keyword, L"text-section-align")) { |
150 | wchar_t *q = uadv(p->keyword); |
d7482997 |
151 | int n = 0; |
db662ca1 |
152 | if (uisdigit(*q)) { |
153 | n = utoi(q); |
154 | q = uadv(q); |
d7482997 |
155 | } |
156 | if (n >= ret.nasect) { |
157 | int i; |
f1530049 |
158 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
d7482997 |
159 | for (i = ret.nasect; i <= n; i++) |
160 | ret.asect[i] = ret.asect[ret.nasect-1]; |
161 | ret.nasect = n+1; |
162 | } |
db662ca1 |
163 | ret.asect[n].align = utoalign(q); |
164 | } else if (!ustricmp(p->keyword, L"text-section-underline")) { |
165 | wchar_t *q = uadv(p->keyword); |
d7482997 |
166 | int n = 0; |
db662ca1 |
167 | if (uisdigit(*q)) { |
168 | n = utoi(q); |
169 | q = uadv(q); |
d7482997 |
170 | } |
171 | if (n >= ret.nasect) { |
172 | int i; |
f1530049 |
173 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
d7482997 |
174 | for (i = ret.nasect; i <= n; i++) |
175 | ret.asect[i] = ret.asect[ret.nasect-1]; |
176 | ret.nasect = n+1; |
177 | } |
db662ca1 |
178 | ret.asect[n].underline = q; |
179 | } else if (!ustricmp(p->keyword, L"text-section-numeric")) { |
180 | wchar_t *q = uadv(p->keyword); |
d7482997 |
181 | int n = 0; |
db662ca1 |
182 | if (uisdigit(*q)) { |
183 | n = utoi(q); |
184 | q = uadv(q); |
d7482997 |
185 | } |
186 | if (n >= ret.nasect) { |
187 | int i; |
f1530049 |
188 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
d7482997 |
189 | for (i = ret.nasect; i <= n; i++) |
190 | ret.asect[i] = ret.asect[ret.nasect-1]; |
191 | ret.nasect = n+1; |
192 | } |
db662ca1 |
193 | ret.asect[n].just_numbers = utob(q); |
194 | } else if (!ustricmp(p->keyword, L"text-section-suffix")) { |
195 | wchar_t *q = uadv(p->keyword); |
63223c78 |
196 | int n = 0; |
db662ca1 |
197 | if (uisdigit(*q)) { |
198 | n = utoi(q); |
199 | q = uadv(q); |
63223c78 |
200 | } |
201 | if (n >= ret.nasect) { |
202 | int i; |
f1530049 |
203 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
e5e6bf9d |
204 | for (i = ret.nasect; i <= n; i++) { |
63223c78 |
205 | ret.asect[i] = ret.asect[ret.nasect-1]; |
e5e6bf9d |
206 | } |
63223c78 |
207 | ret.nasect = n+1; |
208 | } |
db662ca1 |
209 | ret.asect[n].number_suffix = q; |
210 | } else if (!ustricmp(p->keyword, L"text-title-align")) { |
211 | ret.atitle.align = utoalign(uadv(p->keyword)); |
212 | } else if (!ustricmp(p->keyword, L"text-title-underline")) { |
213 | ret.atitle.underline = uadv(p->keyword); |
214 | } else if (!ustricmp(p->keyword, L"text-versionid")) { |
215 | ret.include_version_id = utob(uadv(p->keyword)); |
216 | } else if (!ustricmp(p->keyword, L"text-indent-preamble")) { |
217 | ret.indent_preambles = utob(uadv(p->keyword)); |
218 | } else if (!ustricmp(p->keyword, L"text-bullet")) { |
219 | ret.bullet.text = uadv(p->keyword); |
220 | } else if (!ustricmp(p->keyword, L"text-rule")) { |
221 | ret.rule = uadv(p->keyword); |
222 | } else if (!ustricmp(p->keyword, L"text-list-suffix")) { |
223 | ret.listsuffix = uadv(p->keyword); |
224 | } else if (!ustricmp(p->keyword, L"text-emphasis")) { |
225 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
226 | ret.startemph = uadv(p->keyword); |
227 | ret.endemph = uadv(ret.startemph); |
228 | } |
229 | } else if (!ustricmp(p->keyword, L"text-quotes")) { |
230 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
231 | ret.lquote = uadv(p->keyword); |
232 | ret.rquote = uadv(ret.lquote); |
233 | } |
d7482997 |
234 | } |
235 | } |
236 | } |
237 | |
db662ca1 |
238 | /* |
239 | * Now process fallbacks on quote characters, underlines, the |
240 | * rule character, the emphasis characters, and bullets. |
241 | */ |
242 | while (*uadv(ret.rquote) && *uadv(uadv(ret.rquote)) && |
243 | (!cvt_ok(ret.charset, ret.lquote) || |
244 | !cvt_ok(ret.charset, ret.rquote))) { |
245 | ret.lquote = uadv(ret.rquote); |
246 | ret.rquote = uadv(ret.lquote); |
247 | } |
248 | |
249 | while (*uadv(ret.endemph) && *uadv(uadv(ret.endemph)) && |
250 | (!cvt_ok(ret.charset, ret.startemph) || |
251 | !cvt_ok(ret.charset, ret.endemph))) { |
252 | ret.startemph = uadv(ret.endemph); |
253 | ret.endemph = uadv(ret.startemph); |
254 | } |
255 | |
256 | while (*ret.atitle.underline && *uadv(ret.atitle.underline) && |
257 | !cvt_ok(ret.charset, ret.atitle.underline)) |
258 | ret.atitle.underline = uadv(ret.atitle.underline); |
259 | |
260 | while (*ret.achapter.underline && *uadv(ret.achapter.underline) && |
261 | !cvt_ok(ret.charset, ret.achapter.underline)) |
262 | ret.achapter.underline = uadv(ret.achapter.underline); |
263 | |
264 | for (n = 0; n < ret.nasect; n++) { |
265 | while (*ret.asect[n].underline && *uadv(ret.asect[n].underline) && |
266 | !cvt_ok(ret.charset, ret.asect[n].underline)) |
267 | ret.asect[n].underline = uadv(ret.asect[n].underline); |
268 | } |
269 | |
270 | while (*ret.bullet.text && *uadv(ret.bullet.text) && |
271 | !cvt_ok(ret.charset, ret.bullet.text)) |
272 | ret.bullet.text = uadv(ret.bullet.text); |
273 | |
274 | while (*ret.rule && *uadv(ret.rule) && |
275 | !cvt_ok(ret.charset, ret.rule)) |
276 | ret.rule = uadv(ret.rule); |
277 | |
d7482997 |
278 | return ret; |
279 | } |
280 | |
ba9c1487 |
281 | paragraph *text_config_filename(char *filename) |
282 | { |
e4ea58f8 |
283 | return cmdline_cfg_simple("text-filename", filename, NULL); |
ba9c1487 |
284 | } |
285 | |
d7482997 |
286 | void text_backend(paragraph *sourceform, keywordlist *keywords, |
43341922 |
287 | indexdata *idx, void *unused) { |
d7482997 |
288 | paragraph *p; |
289 | textconfig conf; |
290 | word *prefix, *body, *wp; |
291 | word spaceword; |
2ac8ceac |
292 | textfile tf; |
293 | wchar_t *prefixextra; |
7136a6c7 |
294 | int nesting, nestindent; |
d7482997 |
295 | int indentb, indenta; |
296 | |
43341922 |
297 | IGNORE(unused); |
d7482997 |
298 | IGNORE(keywords); /* we don't happen to need this */ |
299 | IGNORE(idx); /* or this */ |
300 | |
301 | conf = text_configure(sourceform); |
302 | |
303 | /* |
50d6b4bd |
304 | * Open the output file. |
d7482997 |
305 | */ |
2ac8ceac |
306 | tf.fp = fopen(conf.filename, "w"); |
307 | if (!tf.fp) { |
50d6b4bd |
308 | error(err_cantopenw, conf.filename); |
d7482997 |
309 | return; |
310 | } |
2ac8ceac |
311 | tf.charset = conf.charset; |
312 | tf.state = charset_init_state; |
d7482997 |
313 | |
314 | /* Do the title */ |
315 | for (p = sourceform; p; p = p->next) |
316 | if (p->type == para_Title) |
2ac8ceac |
317 | text_heading(&tf, NULL, NULL, p->words, |
db662ca1 |
318 | conf.atitle, conf.indent, conf.width, &conf); |
d7482997 |
319 | |
7136a6c7 |
320 | nestindent = conf.listindentbefore + conf.listindentafter; |
8902e0ed |
321 | nesting = (conf.indent_preambles ? 0 : -conf.indent); |
7136a6c7 |
322 | |
d7482997 |
323 | /* Do the main document */ |
324 | for (p = sourceform; p; p = p->next) switch (p->type) { |
325 | |
2614b01d |
326 | case para_QuotePush: |
327 | nesting += 2; |
328 | break; |
329 | case para_QuotePop: |
330 | nesting -= 2; |
331 | assert(nesting >= 0); |
332 | break; |
333 | |
7136a6c7 |
334 | case para_LcontPush: |
2614b01d |
335 | nesting += nestindent; |
7136a6c7 |
336 | break; |
337 | case para_LcontPop: |
2614b01d |
338 | nesting -= nestindent; |
339 | assert(nesting >= 0); |
7136a6c7 |
340 | break; |
341 | |
d7482997 |
342 | /* |
343 | * Things we ignore because we've already processed them or |
344 | * aren't going to touch them in this pass. |
345 | */ |
346 | case para_IM: |
347 | case para_BR: |
348 | case para_Biblio: /* only touch BiblioCited */ |
349 | case para_VersionID: |
d7482997 |
350 | case para_NoCite: |
351 | case para_Title: |
352 | break; |
353 | |
354 | /* |
355 | * Chapter titles. |
356 | */ |
357 | case para_Chapter: |
358 | case para_Appendix: |
359 | case para_UnnumberedChapter: |
2ac8ceac |
360 | text_heading(&tf, p->kwtext, p->kwtext2, p->words, |
db662ca1 |
361 | conf.achapter, conf.indent, conf.width, &conf); |
8902e0ed |
362 | nesting = 0; |
d7482997 |
363 | break; |
364 | |
365 | case para_Heading: |
366 | case para_Subsect: |
2ac8ceac |
367 | text_heading(&tf, p->kwtext, p->kwtext2, p->words, |
d7482997 |
368 | conf.asect[p->aux>=conf.nasect ? conf.nasect-1 : p->aux], |
db662ca1 |
369 | conf.indent, conf.width, &conf); |
d7482997 |
370 | break; |
371 | |
372 | case para_Rule: |
db662ca1 |
373 | text_rule(&tf, conf.indent + nesting, conf.width - nesting, &conf); |
d7482997 |
374 | break; |
375 | |
376 | case para_Normal: |
9057a0a8 |
377 | case para_Copyright: |
7136a6c7 |
378 | case para_DescribedThing: |
379 | case para_Description: |
d7482997 |
380 | case para_BiblioCited: |
381 | case para_Bullet: |
382 | case para_NumberedList: |
383 | if (p->type == para_Bullet) { |
384 | prefix = &conf.bullet; |
385 | prefixextra = NULL; |
386 | indentb = conf.listindentbefore; |
387 | indenta = conf.listindentafter; |
388 | } else if (p->type == para_NumberedList) { |
389 | prefix = p->kwtext; |
db662ca1 |
390 | prefixextra = conf.listsuffix; |
d7482997 |
391 | indentb = conf.listindentbefore; |
392 | indenta = conf.listindentafter; |
7136a6c7 |
393 | } else if (p->type == para_Description) { |
394 | prefix = NULL; |
395 | prefixextra = NULL; |
396 | indentb = conf.listindentbefore; |
397 | indenta = conf.listindentafter; |
d7482997 |
398 | } else { |
399 | prefix = NULL; |
400 | prefixextra = NULL; |
401 | indentb = indenta = 0; |
402 | } |
403 | if (p->type == para_BiblioCited) { |
404 | body = dup_word_list(p->kwtext); |
405 | for (wp = body; wp->next; wp = wp->next); |
406 | wp->next = &spaceword; |
407 | spaceword.next = p->words; |
408 | spaceword.alt = NULL; |
409 | spaceword.type = word_WhiteSpace; |
410 | spaceword.text = NULL; |
411 | } else { |
412 | wp = NULL; |
413 | body = p->words; |
414 | } |
2ac8ceac |
415 | text_para(&tf, prefix, prefixextra, body, |
2614b01d |
416 | conf.indent + nesting + indentb, indenta, |
db662ca1 |
417 | conf.width - nesting - indentb - indenta, &conf); |
d7482997 |
418 | if (wp) { |
419 | wp->next = NULL; |
420 | free_word_list(body); |
421 | } |
422 | break; |
423 | |
424 | case para_Code: |
2ac8ceac |
425 | text_codepara(&tf, p->words, |
2614b01d |
426 | conf.indent + nesting + conf.indent_code, |
427 | conf.width - nesting - 2 * conf.indent_code); |
d7482997 |
428 | break; |
429 | } |
430 | |
431 | /* Do the version ID */ |
432 | if (conf.include_version_id) { |
433 | for (p = sourceform; p; p = p->next) |
434 | if (p->type == para_VersionID) |
db662ca1 |
435 | text_versionid(&tf, p->words, &conf); |
d7482997 |
436 | } |
437 | |
438 | /* |
439 | * Tidy up |
440 | */ |
2ac8ceac |
441 | text_output(&tf, NULL); /* end charset conversion */ |
442 | fclose(tf.fp); |
e5e6bf9d |
443 | sfree(conf.asect); |
50d6b4bd |
444 | sfree(conf.filename); |
d7482997 |
445 | } |
446 | |
2ac8ceac |
447 | static void text_output(textfile *tf, const wchar_t *s) |
448 | { |
449 | char buf[256]; |
450 | int ret, len; |
451 | const wchar_t **sp; |
452 | |
453 | if (!s) { |
454 | sp = NULL; |
455 | len = 1; |
456 | } else { |
457 | sp = &s; |
458 | len = ustrlen(s); |
459 | } |
460 | |
461 | while (len > 0) { |
462 | ret = charset_from_unicode(sp, &len, buf, lenof(buf), |
463 | tf->charset, &tf->state, NULL); |
464 | if (!sp) |
465 | len = 0; |
466 | fwrite(buf, 1, ret, tf->fp); |
d7482997 |
467 | } |
d7482997 |
468 | } |
469 | |
2ac8ceac |
470 | static void text_output_many(textfile *tf, int n, wchar_t c) |
471 | { |
472 | wchar_t s[2]; |
473 | s[0] = c; |
474 | s[1] = L'\0'; |
475 | while (n--) |
476 | text_output(tf, s); |
477 | } |
d7482997 |
478 | |
db662ca1 |
479 | static void text_rdaddw(rdstring *rs, word *text, word *end, textconfig *cfg) { |
d7482997 |
480 | for (; text && text != end; text = text->next) switch (text->type) { |
481 | case word_HyperLink: |
482 | case word_HyperEnd: |
483 | case word_UpperXref: |
484 | case word_LowerXref: |
485 | case word_XrefEnd: |
486 | case word_IndexRef: |
487 | break; |
488 | |
489 | case word_Normal: |
490 | case word_Emph: |
491 | case word_Code: |
492 | case word_WeakCode: |
493 | case word_WhiteSpace: |
494 | case word_EmphSpace: |
495 | case word_CodeSpace: |
496 | case word_WkCodeSpace: |
497 | case word_Quote: |
498 | case word_EmphQuote: |
499 | case word_CodeQuote: |
500 | case word_WkCodeQuote: |
501 | assert(text->type != word_CodeQuote && |
502 | text->type != word_WkCodeQuote); |
503 | if (towordstyle(text->type) == word_Emph && |
504 | (attraux(text->aux) == attr_First || |
505 | attraux(text->aux) == attr_Only)) |
db662ca1 |
506 | rdadds(rs, cfg->startemph); |
d7482997 |
507 | else if (towordstyle(text->type) == word_Code && |
508 | (attraux(text->aux) == attr_First || |
509 | attraux(text->aux) == attr_Only)) |
db662ca1 |
510 | rdadds(rs, cfg->lquote); |
d7482997 |
511 | if (removeattr(text->type) == word_Normal) { |
db662ca1 |
512 | if (cvt_ok(cfg->charset, text->text) || !text->alt) |
2ac8ceac |
513 | rdadds(rs, text->text); |
d7482997 |
514 | else |
db662ca1 |
515 | text_rdaddw(rs, text->alt, NULL, cfg); |
d7482997 |
516 | } else if (removeattr(text->type) == word_WhiteSpace) { |
2ac8ceac |
517 | rdadd(rs, L' '); |
d7482997 |
518 | } else if (removeattr(text->type) == word_Quote) { |
db662ca1 |
519 | rdadds(rs, quoteaux(text->aux) == quote_Open ? |
520 | cfg->lquote : cfg->rquote); |
d7482997 |
521 | } |
522 | if (towordstyle(text->type) == word_Emph && |
523 | (attraux(text->aux) == attr_Last || |
524 | attraux(text->aux) == attr_Only)) |
db662ca1 |
525 | rdadds(rs, cfg->endemph); |
d7482997 |
526 | else if (towordstyle(text->type) == word_Code && |
527 | (attraux(text->aux) == attr_Last || |
528 | attraux(text->aux) == attr_Only)) |
db662ca1 |
529 | rdadds(rs, cfg->rquote); |
d7482997 |
530 | break; |
531 | } |
532 | } |
533 | |
43341922 |
534 | static int text_width(void *, word *); |
d7482997 |
535 | |
43341922 |
536 | static int text_width_list(void *ctx, word *text) { |
d7482997 |
537 | int w = 0; |
538 | while (text) { |
43341922 |
539 | w += text_width(ctx, text); |
d7482997 |
540 | text = text->next; |
541 | } |
542 | return w; |
543 | } |
544 | |
43341922 |
545 | static int text_width(void *ctx, word *text) { |
db662ca1 |
546 | textconfig *cfg = (textconfig *)ctx; |
547 | int wid; |
548 | int attr; |
43341922 |
549 | |
d7482997 |
550 | switch (text->type) { |
551 | case word_HyperLink: |
552 | case word_HyperEnd: |
553 | case word_UpperXref: |
554 | case word_LowerXref: |
555 | case word_XrefEnd: |
556 | case word_IndexRef: |
557 | return 0; |
db662ca1 |
558 | } |
559 | |
560 | assert(text->type < word_internal_endattrs); |
561 | |
562 | wid = 0; |
563 | attr = towordstyle(text->type); |
564 | if (attr == word_Emph || attr == word_Code) { |
565 | if (attraux(text->aux) == attr_Only || |
566 | attraux(text->aux) == attr_First) |
567 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
568 | cfg->charset); |
569 | } |
570 | if (attr == word_Emph || attr == word_Code) { |
571 | if (attraux(text->aux) == attr_Only || |
572 | attraux(text->aux) == attr_Last) |
573 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
574 | cfg->charset); |
575 | } |
d7482997 |
576 | |
db662ca1 |
577 | switch (text->type) { |
d7482997 |
578 | case word_Normal: |
579 | case word_Emph: |
580 | case word_Code: |
581 | case word_WeakCode: |
db662ca1 |
582 | if (cvt_ok(cfg->charset, text->text) || !text->alt) |
583 | wid += ustrwid(text->text, cfg->charset); |
584 | else |
585 | wid += text_width_list(ctx, text->alt); |
586 | return wid; |
d7482997 |
587 | |
588 | case word_WhiteSpace: |
589 | case word_EmphSpace: |
590 | case word_CodeSpace: |
591 | case word_WkCodeSpace: |
592 | case word_Quote: |
593 | case word_EmphQuote: |
594 | case word_CodeQuote: |
595 | case word_WkCodeQuote: |
596 | assert(text->type != word_CodeQuote && |
597 | text->type != word_WkCodeQuote); |
db662ca1 |
598 | if (removeattr(text->type) == word_Quote) { |
599 | if (quoteaux(text->aux) == quote_Open) |
600 | wid += ustrwid(cfg->lquote, cfg->charset); |
601 | else |
602 | wid += ustrwid(cfg->rquote, cfg->charset); |
603 | } else |
604 | wid++; /* space */ |
d7482997 |
605 | } |
db662ca1 |
606 | |
607 | return wid; |
d7482997 |
608 | } |
609 | |
2ac8ceac |
610 | static void text_heading(textfile *tf, word *tprefix, word *nprefix, |
611 | word *text, alignstruct align, |
db662ca1 |
612 | int indent, int width, textconfig *cfg) { |
2ac8ceac |
613 | rdstring t = { 0, 0, NULL }; |
d7482997 |
614 | int margin, length; |
615 | int firstlinewidth, wrapwidth; |
616 | wrappedline *wrapping, *p; |
617 | |
618 | if (align.just_numbers && nprefix) { |
db662ca1 |
619 | text_rdaddw(&t, nprefix, NULL, cfg); |
2ac8ceac |
620 | rdadds(&t, align.number_suffix); |
d7482997 |
621 | } else if (!align.just_numbers && tprefix) { |
db662ca1 |
622 | text_rdaddw(&t, tprefix, NULL, cfg); |
2ac8ceac |
623 | rdadds(&t, align.number_suffix); |
d7482997 |
624 | } |
db662ca1 |
625 | margin = length = ustrwid(t.text ? t.text : L"", cfg->charset); |
d7482997 |
626 | |
627 | if (align.align == LEFTPLUS) { |
628 | margin = indent - margin; |
629 | if (margin < 0) margin = 0; |
630 | firstlinewidth = indent + width - margin - length; |
631 | wrapwidth = width; |
632 | } else if (align.align == LEFT || align.align == CENTRE) { |
633 | margin = 0; |
634 | firstlinewidth = indent + width - length; |
635 | wrapwidth = indent + width; |
636 | } |
637 | |
2ac8ceac |
638 | wrapping = wrap_para(text, firstlinewidth, wrapwidth, |
db662ca1 |
639 | text_width, cfg, 0); |
d7482997 |
640 | for (p = wrapping; p; p = p->next) { |
db662ca1 |
641 | text_rdaddw(&t, p->begin, p->end, cfg); |
642 | length = ustrwid(t.text ? t.text : L"", cfg->charset); |
d7482997 |
643 | if (align.align == CENTRE) { |
644 | margin = (indent + width - length)/2; |
645 | if (margin < 0) margin = 0; |
646 | } |
2ac8ceac |
647 | text_output_many(tf, margin, L' '); |
648 | text_output(tf, t.text); |
649 | text_output(tf, L"\n"); |
db662ca1 |
650 | if (*align.underline) { |
2ac8ceac |
651 | text_output_many(tf, margin, L' '); |
db662ca1 |
652 | while (length > 0) { |
653 | text_output(tf, align.underline); |
654 | length -= ustrwid(align.underline, cfg->charset); |
655 | } |
2ac8ceac |
656 | text_output(tf, L"\n"); |
d7482997 |
657 | } |
658 | if (align.align == LEFTPLUS) |
659 | margin = indent; |
660 | else |
661 | margin = 0; |
662 | sfree(t.text); |
2ac8ceac |
663 | t = empty_rdstring; |
d7482997 |
664 | } |
665 | wrap_free(wrapping); |
2ac8ceac |
666 | text_output(tf, L"\n"); |
d7482997 |
667 | |
668 | sfree(t.text); |
669 | } |
670 | |
db662ca1 |
671 | static void text_rule(textfile *tf, int indent, int width, textconfig *cfg) { |
2ac8ceac |
672 | text_output_many(tf, indent, L' '); |
db662ca1 |
673 | while (width > 0) { |
674 | text_output(tf, cfg->rule); |
675 | width -= ustrwid(cfg->rule, cfg->charset); |
676 | } |
2ac8ceac |
677 | text_output_many(tf, 2, L'\n'); |
d7482997 |
678 | } |
679 | |
2ac8ceac |
680 | static void text_para(textfile *tf, word *prefix, wchar_t *prefixextra, |
db662ca1 |
681 | word *text, int indent, int extraindent, int width, |
682 | textconfig *cfg) { |
d7482997 |
683 | wrappedline *wrapping, *p; |
2ac8ceac |
684 | rdstring pfx = { 0, 0, NULL }; |
d7482997 |
685 | int e; |
686 | int firstlinewidth = width; |
687 | |
688 | if (prefix) { |
db662ca1 |
689 | text_rdaddw(&pfx, prefix, NULL, cfg); |
d7482997 |
690 | if (prefixextra) |
2ac8ceac |
691 | rdadds(&pfx, prefixextra); |
692 | text_output_many(tf, indent, L' '); |
693 | text_output(tf, pfx.text); |
c83c6495 |
694 | /* If the prefix is too long, shorten the first line to fit. */ |
db662ca1 |
695 | e = extraindent - ustrwid(pfx.text ? pfx.text : L"", cfg->charset); |
d7482997 |
696 | if (e < 0) { |
c83c6495 |
697 | firstlinewidth += e; /* this decreases it, since e < 0 */ |
d7482997 |
698 | if (firstlinewidth < 0) { |
699 | e = indent + extraindent; |
700 | firstlinewidth = width; |
2ac8ceac |
701 | text_output(tf, L"\n"); |
c83c6495 |
702 | } else |
703 | e = 0; |
d7482997 |
704 | } |
705 | sfree(pfx.text); |
706 | } else |
707 | e = indent + extraindent; |
708 | |
2ac8ceac |
709 | wrapping = wrap_para(text, firstlinewidth, width, |
db662ca1 |
710 | text_width, cfg, 0); |
d7482997 |
711 | for (p = wrapping; p; p = p->next) { |
2ac8ceac |
712 | rdstring t = { 0, 0, NULL }; |
db662ca1 |
713 | text_rdaddw(&t, p->begin, p->end, cfg); |
2ac8ceac |
714 | text_output_many(tf, e, L' '); |
715 | text_output(tf, t.text); |
716 | text_output(tf, L"\n"); |
d7482997 |
717 | e = indent + extraindent; |
718 | sfree(t.text); |
719 | } |
720 | wrap_free(wrapping); |
2ac8ceac |
721 | text_output(tf, L"\n"); |
d7482997 |
722 | } |
723 | |
2ac8ceac |
724 | static void text_codepara(textfile *tf, word *text, int indent, int width) { |
d7482997 |
725 | for (; text; text = text->next) if (text->type == word_WeakCode) { |
db662ca1 |
726 | int wid = ustrwid(text->text, tf->charset); |
727 | if (wid > width) |
728 | error(err_text_codeline, &text->fpos, wid, width); |
2ac8ceac |
729 | text_output_many(tf, indent, L' '); |
730 | text_output(tf, text->text); |
731 | text_output(tf, L"\n"); |
d7482997 |
732 | } |
733 | |
2ac8ceac |
734 | text_output(tf, L"\n"); |
d7482997 |
735 | } |
736 | |
db662ca1 |
737 | static void text_versionid(textfile *tf, word *text, textconfig *cfg) { |
2ac8ceac |
738 | rdstring t = { 0, 0, NULL }; |
d7482997 |
739 | |
db662ca1 |
740 | rdadd(&t, L'['); |
741 | text_rdaddw(&t, text, NULL, cfg); |
742 | rdadd(&t, L']'); |
2ac8ceac |
743 | rdadd(&t, L'\n'); |
d7482997 |
744 | |
2ac8ceac |
745 | text_output(tf, t.text); |
d7482997 |
746 | sfree(t.text); |
747 | } |