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; |
6e674706 |
13 | int number_at_all, 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 */ |
6e674706 |
70 | ret.atitle.number_at_all = TRUE; /* ignored */ |
d7482997 |
71 | |
72 | /* |
73 | * Defaults. |
74 | */ |
75 | ret.indent = 7; |
76 | ret.indent_code = 2; |
77 | ret.listindentbefore = 1; |
78 | ret.listindentafter = 3; |
79 | ret.width = 68; |
80 | ret.atitle.align = CENTRE; |
db662ca1 |
81 | ret.atitle.underline = L"\x2550\0=\0\0"; |
d7482997 |
82 | ret.achapter.align = LEFT; |
83 | ret.achapter.just_numbers = FALSE; |
6e674706 |
84 | ret.achapter.number_at_all = TRUE; |
e5e6bf9d |
85 | ret.achapter.number_suffix = L": "; |
db662ca1 |
86 | ret.achapter.underline = L"\x203E\0-\0\0"; |
d7482997 |
87 | ret.nasect = 1; |
f1530049 |
88 | ret.asect = snewn(ret.nasect, alignstruct); |
d7482997 |
89 | ret.asect[0].align = LEFTPLUS; |
90 | ret.asect[0].just_numbers = TRUE; |
6e674706 |
91 | ret.asect[0].number_at_all = TRUE; |
e5e6bf9d |
92 | ret.asect[0].number_suffix = L" "; |
db662ca1 |
93 | ret.asect[0].underline = L"\0"; |
d7482997 |
94 | ret.include_version_id = TRUE; |
95 | ret.indent_preambles = FALSE; |
db662ca1 |
96 | ret.bullet.text = L"\x2022\0-\0\0"; |
97 | ret.rule = L"\x2500\0-\0\0"; |
50d6b4bd |
98 | ret.filename = dupstr("output.txt"); |
3e030063 |
99 | ret.startemph = L"_\0_\0\0"; |
100 | ret.endemph = uadv(ret.startemph); |
db662ca1 |
101 | ret.listsuffix = L"."; |
2ac8ceac |
102 | ret.charset = CS_ASCII; |
db662ca1 |
103 | /* |
104 | * Default quote characters are Unicode matched single quotes, |
105 | * falling back to the TeXlike `'. |
106 | */ |
107 | ret.lquote = L"\x2018\0\x2019\0`\0'\0\0"; |
108 | ret.rquote = uadv(ret.lquote); |
d7482997 |
109 | |
db662ca1 |
110 | /* |
111 | * Two-pass configuration so that we can pick up global config |
112 | * (e.g. `quotes') before having it overridden by specific |
113 | * config (`text-quotes'), irrespective of the order in which |
114 | * they occur. |
115 | */ |
116 | for (p = source; p; p = p->next) { |
117 | if (p->type == para_Config) { |
118 | if (!ustricmp(p->keyword, L"quotes")) { |
119 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
120 | ret.lquote = uadv(p->keyword); |
121 | ret.rquote = uadv(ret.lquote); |
122 | } |
123 | } |
124 | } |
125 | } |
126 | |
127 | for (p = source; p; p = p->next) { |
128 | if (p->type == para_Config) { |
129 | if (!ustricmp(p->keyword, L"text-indent")) { |
130 | ret.indent = utoi(uadv(p->keyword)); |
131 | } else if (!ustricmp(p->keyword, L"text-charset")) { |
0960a3d8 |
132 | ret.charset = charset_from_ustr(&p->fpos, uadv(p->keyword)); |
db662ca1 |
133 | } else if (!ustricmp(p->keyword, L"text-filename")) { |
50d6b4bd |
134 | sfree(ret.filename); |
db662ca1 |
135 | ret.filename = dupstr(adv(p->origkeyword)); |
136 | } else if (!ustricmp(p->keyword, L"text-indent-code")) { |
137 | ret.indent_code = utoi(uadv(p->keyword)); |
138 | } else if (!ustricmp(p->keyword, L"text-width")) { |
139 | ret.width = utoi(uadv(p->keyword)); |
140 | } else if (!ustricmp(p->keyword, L"text-list-indent")) { |
141 | ret.listindentbefore = utoi(uadv(p->keyword)); |
142 | } else if (!ustricmp(p->keyword, L"text-listitem-indent")) { |
143 | ret.listindentafter = utoi(uadv(p->keyword)); |
144 | } else if (!ustricmp(p->keyword, L"text-chapter-align")) { |
145 | ret.achapter.align = utoalign(uadv(p->keyword)); |
146 | } else if (!ustricmp(p->keyword, L"text-chapter-underline")) { |
147 | ret.achapter.underline = uadv(p->keyword); |
148 | } else if (!ustricmp(p->keyword, L"text-chapter-numeric")) { |
149 | ret.achapter.just_numbers = utob(uadv(p->keyword)); |
6e674706 |
150 | } else if (!ustricmp(p->keyword, L"text-chapter-shownumber")) { |
151 | ret.achapter.number_at_all = utob(uadv(p->keyword)); |
db662ca1 |
152 | } else if (!ustricmp(p->keyword, L"text-chapter-suffix")) { |
153 | ret.achapter.number_suffix = uadv(p->keyword); |
154 | } else if (!ustricmp(p->keyword, L"text-section-align")) { |
155 | wchar_t *q = uadv(p->keyword); |
d7482997 |
156 | int n = 0; |
db662ca1 |
157 | if (uisdigit(*q)) { |
158 | n = utoi(q); |
159 | q = uadv(q); |
d7482997 |
160 | } |
161 | if (n >= ret.nasect) { |
162 | int i; |
f1530049 |
163 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
d7482997 |
164 | for (i = ret.nasect; i <= n; i++) |
165 | ret.asect[i] = ret.asect[ret.nasect-1]; |
166 | ret.nasect = n+1; |
167 | } |
db662ca1 |
168 | ret.asect[n].align = utoalign(q); |
169 | } else if (!ustricmp(p->keyword, L"text-section-underline")) { |
170 | wchar_t *q = uadv(p->keyword); |
d7482997 |
171 | int n = 0; |
db662ca1 |
172 | if (uisdigit(*q)) { |
173 | n = utoi(q); |
174 | q = uadv(q); |
d7482997 |
175 | } |
176 | if (n >= ret.nasect) { |
177 | int i; |
f1530049 |
178 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
d7482997 |
179 | for (i = ret.nasect; i <= n; i++) |
180 | ret.asect[i] = ret.asect[ret.nasect-1]; |
181 | ret.nasect = n+1; |
182 | } |
db662ca1 |
183 | ret.asect[n].underline = q; |
184 | } else if (!ustricmp(p->keyword, L"text-section-numeric")) { |
185 | wchar_t *q = uadv(p->keyword); |
d7482997 |
186 | int n = 0; |
db662ca1 |
187 | if (uisdigit(*q)) { |
188 | n = utoi(q); |
189 | q = uadv(q); |
d7482997 |
190 | } |
191 | if (n >= ret.nasect) { |
192 | int i; |
f1530049 |
193 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
d7482997 |
194 | for (i = ret.nasect; i <= n; i++) |
195 | ret.asect[i] = ret.asect[ret.nasect-1]; |
196 | ret.nasect = n+1; |
197 | } |
db662ca1 |
198 | ret.asect[n].just_numbers = utob(q); |
6e674706 |
199 | } else if (!ustricmp(p->keyword, L"text-section-shownumber")) { |
200 | wchar_t *q = uadv(p->keyword); |
201 | int n = 0; |
202 | if (uisdigit(*q)) { |
203 | n = utoi(q); |
204 | q = uadv(q); |
205 | } |
206 | if (n >= ret.nasect) { |
207 | int i; |
208 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
209 | for (i = ret.nasect; i <= n; i++) |
210 | ret.asect[i] = ret.asect[ret.nasect-1]; |
211 | ret.nasect = n+1; |
212 | } |
213 | ret.asect[n].number_at_all = utob(q); |
db662ca1 |
214 | } else if (!ustricmp(p->keyword, L"text-section-suffix")) { |
215 | wchar_t *q = uadv(p->keyword); |
63223c78 |
216 | int n = 0; |
db662ca1 |
217 | if (uisdigit(*q)) { |
218 | n = utoi(q); |
219 | q = uadv(q); |
63223c78 |
220 | } |
221 | if (n >= ret.nasect) { |
222 | int i; |
f1530049 |
223 | ret.asect = sresize(ret.asect, n+1, alignstruct); |
e5e6bf9d |
224 | for (i = ret.nasect; i <= n; i++) { |
63223c78 |
225 | ret.asect[i] = ret.asect[ret.nasect-1]; |
e5e6bf9d |
226 | } |
63223c78 |
227 | ret.nasect = n+1; |
228 | } |
db662ca1 |
229 | ret.asect[n].number_suffix = q; |
230 | } else if (!ustricmp(p->keyword, L"text-title-align")) { |
231 | ret.atitle.align = utoalign(uadv(p->keyword)); |
232 | } else if (!ustricmp(p->keyword, L"text-title-underline")) { |
233 | ret.atitle.underline = uadv(p->keyword); |
234 | } else if (!ustricmp(p->keyword, L"text-versionid")) { |
235 | ret.include_version_id = utob(uadv(p->keyword)); |
236 | } else if (!ustricmp(p->keyword, L"text-indent-preamble")) { |
237 | ret.indent_preambles = utob(uadv(p->keyword)); |
238 | } else if (!ustricmp(p->keyword, L"text-bullet")) { |
239 | ret.bullet.text = uadv(p->keyword); |
240 | } else if (!ustricmp(p->keyword, L"text-rule")) { |
241 | ret.rule = uadv(p->keyword); |
242 | } else if (!ustricmp(p->keyword, L"text-list-suffix")) { |
243 | ret.listsuffix = uadv(p->keyword); |
244 | } else if (!ustricmp(p->keyword, L"text-emphasis")) { |
245 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
246 | ret.startemph = uadv(p->keyword); |
247 | ret.endemph = uadv(ret.startemph); |
248 | } |
249 | } else if (!ustricmp(p->keyword, L"text-quotes")) { |
250 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
251 | ret.lquote = uadv(p->keyword); |
252 | ret.rquote = uadv(ret.lquote); |
253 | } |
d7482997 |
254 | } |
255 | } |
256 | } |
257 | |
db662ca1 |
258 | /* |
259 | * Now process fallbacks on quote characters, underlines, the |
260 | * rule character, the emphasis characters, and bullets. |
261 | */ |
262 | while (*uadv(ret.rquote) && *uadv(uadv(ret.rquote)) && |
263 | (!cvt_ok(ret.charset, ret.lquote) || |
264 | !cvt_ok(ret.charset, ret.rquote))) { |
265 | ret.lquote = uadv(ret.rquote); |
266 | ret.rquote = uadv(ret.lquote); |
267 | } |
268 | |
269 | while (*uadv(ret.endemph) && *uadv(uadv(ret.endemph)) && |
270 | (!cvt_ok(ret.charset, ret.startemph) || |
271 | !cvt_ok(ret.charset, ret.endemph))) { |
272 | ret.startemph = uadv(ret.endemph); |
273 | ret.endemph = uadv(ret.startemph); |
274 | } |
275 | |
276 | while (*ret.atitle.underline && *uadv(ret.atitle.underline) && |
277 | !cvt_ok(ret.charset, ret.atitle.underline)) |
278 | ret.atitle.underline = uadv(ret.atitle.underline); |
279 | |
280 | while (*ret.achapter.underline && *uadv(ret.achapter.underline) && |
281 | !cvt_ok(ret.charset, ret.achapter.underline)) |
282 | ret.achapter.underline = uadv(ret.achapter.underline); |
283 | |
284 | for (n = 0; n < ret.nasect; n++) { |
285 | while (*ret.asect[n].underline && *uadv(ret.asect[n].underline) && |
286 | !cvt_ok(ret.charset, ret.asect[n].underline)) |
287 | ret.asect[n].underline = uadv(ret.asect[n].underline); |
288 | } |
289 | |
290 | while (*ret.bullet.text && *uadv(ret.bullet.text) && |
291 | !cvt_ok(ret.charset, ret.bullet.text)) |
292 | ret.bullet.text = uadv(ret.bullet.text); |
293 | |
294 | while (*ret.rule && *uadv(ret.rule) && |
295 | !cvt_ok(ret.charset, ret.rule)) |
296 | ret.rule = uadv(ret.rule); |
297 | |
d7482997 |
298 | return ret; |
299 | } |
300 | |
ba9c1487 |
301 | paragraph *text_config_filename(char *filename) |
302 | { |
e4ea58f8 |
303 | return cmdline_cfg_simple("text-filename", filename, NULL); |
ba9c1487 |
304 | } |
305 | |
d7482997 |
306 | void text_backend(paragraph *sourceform, keywordlist *keywords, |
43341922 |
307 | indexdata *idx, void *unused) { |
d7482997 |
308 | paragraph *p; |
309 | textconfig conf; |
310 | word *prefix, *body, *wp; |
311 | word spaceword; |
2ac8ceac |
312 | textfile tf; |
313 | wchar_t *prefixextra; |
04c08204 |
314 | int nesting, nestbase, nestindent; |
d7482997 |
315 | int indentb, indenta; |
316 | |
43341922 |
317 | IGNORE(unused); |
d7482997 |
318 | IGNORE(keywords); /* we don't happen to need this */ |
319 | IGNORE(idx); /* or this */ |
320 | |
321 | conf = text_configure(sourceform); |
322 | |
323 | /* |
50d6b4bd |
324 | * Open the output file. |
d7482997 |
325 | */ |
2ac8ceac |
326 | tf.fp = fopen(conf.filename, "w"); |
327 | if (!tf.fp) { |
50d6b4bd |
328 | error(err_cantopenw, conf.filename); |
d7482997 |
329 | return; |
330 | } |
2ac8ceac |
331 | tf.charset = conf.charset; |
332 | tf.state = charset_init_state; |
d7482997 |
333 | |
334 | /* Do the title */ |
335 | for (p = sourceform; p; p = p->next) |
336 | if (p->type == para_Title) |
2ac8ceac |
337 | text_heading(&tf, NULL, NULL, p->words, |
db662ca1 |
338 | conf.atitle, conf.indent, conf.width, &conf); |
d7482997 |
339 | |
7136a6c7 |
340 | nestindent = conf.listindentbefore + conf.listindentafter; |
04c08204 |
341 | nestbase = (conf.indent_preambles ? 0 : -conf.indent); |
342 | nesting = nestbase; |
7136a6c7 |
343 | |
d7482997 |
344 | /* Do the main document */ |
345 | for (p = sourceform; p; p = p->next) switch (p->type) { |
346 | |
2614b01d |
347 | case para_QuotePush: |
348 | nesting += 2; |
349 | break; |
350 | case para_QuotePop: |
351 | nesting -= 2; |
352 | assert(nesting >= 0); |
353 | break; |
354 | |
7136a6c7 |
355 | case para_LcontPush: |
2614b01d |
356 | nesting += nestindent; |
7136a6c7 |
357 | break; |
358 | case para_LcontPop: |
2614b01d |
359 | nesting -= nestindent; |
04c08204 |
360 | assert(nesting >= nestbase); |
7136a6c7 |
361 | break; |
362 | |
d7482997 |
363 | /* |
364 | * Things we ignore because we've already processed them or |
365 | * aren't going to touch them in this pass. |
366 | */ |
367 | case para_IM: |
368 | case para_BR: |
369 | case para_Biblio: /* only touch BiblioCited */ |
370 | case para_VersionID: |
d7482997 |
371 | case para_NoCite: |
372 | case para_Title: |
373 | break; |
374 | |
375 | /* |
376 | * Chapter titles. |
377 | */ |
378 | case para_Chapter: |
379 | case para_Appendix: |
380 | case para_UnnumberedChapter: |
2ac8ceac |
381 | text_heading(&tf, p->kwtext, p->kwtext2, p->words, |
db662ca1 |
382 | conf.achapter, conf.indent, conf.width, &conf); |
8902e0ed |
383 | nesting = 0; |
d7482997 |
384 | break; |
385 | |
386 | case para_Heading: |
387 | case para_Subsect: |
2ac8ceac |
388 | text_heading(&tf, p->kwtext, p->kwtext2, p->words, |
d7482997 |
389 | conf.asect[p->aux>=conf.nasect ? conf.nasect-1 : p->aux], |
db662ca1 |
390 | conf.indent, conf.width, &conf); |
d7482997 |
391 | break; |
392 | |
393 | case para_Rule: |
db662ca1 |
394 | text_rule(&tf, conf.indent + nesting, conf.width - nesting, &conf); |
d7482997 |
395 | break; |
396 | |
397 | case para_Normal: |
9057a0a8 |
398 | case para_Copyright: |
7136a6c7 |
399 | case para_DescribedThing: |
400 | case para_Description: |
d7482997 |
401 | case para_BiblioCited: |
402 | case para_Bullet: |
403 | case para_NumberedList: |
404 | if (p->type == para_Bullet) { |
405 | prefix = &conf.bullet; |
406 | prefixextra = NULL; |
407 | indentb = conf.listindentbefore; |
408 | indenta = conf.listindentafter; |
409 | } else if (p->type == para_NumberedList) { |
410 | prefix = p->kwtext; |
db662ca1 |
411 | prefixextra = conf.listsuffix; |
d7482997 |
412 | indentb = conf.listindentbefore; |
413 | indenta = conf.listindentafter; |
7136a6c7 |
414 | } else if (p->type == para_Description) { |
415 | prefix = NULL; |
416 | prefixextra = NULL; |
417 | indentb = conf.listindentbefore; |
418 | indenta = conf.listindentafter; |
d7482997 |
419 | } else { |
420 | prefix = NULL; |
421 | prefixextra = NULL; |
422 | indentb = indenta = 0; |
423 | } |
424 | if (p->type == para_BiblioCited) { |
425 | body = dup_word_list(p->kwtext); |
426 | for (wp = body; wp->next; wp = wp->next); |
427 | wp->next = &spaceword; |
428 | spaceword.next = p->words; |
429 | spaceword.alt = NULL; |
430 | spaceword.type = word_WhiteSpace; |
431 | spaceword.text = NULL; |
432 | } else { |
433 | wp = NULL; |
434 | body = p->words; |
435 | } |
2ac8ceac |
436 | text_para(&tf, prefix, prefixextra, body, |
2614b01d |
437 | conf.indent + nesting + indentb, indenta, |
db662ca1 |
438 | conf.width - nesting - indentb - indenta, &conf); |
d7482997 |
439 | if (wp) { |
440 | wp->next = NULL; |
441 | free_word_list(body); |
442 | } |
443 | break; |
444 | |
445 | case para_Code: |
2ac8ceac |
446 | text_codepara(&tf, p->words, |
2614b01d |
447 | conf.indent + nesting + conf.indent_code, |
448 | conf.width - nesting - 2 * conf.indent_code); |
d7482997 |
449 | break; |
450 | } |
451 | |
452 | /* Do the version ID */ |
453 | if (conf.include_version_id) { |
454 | for (p = sourceform; p; p = p->next) |
455 | if (p->type == para_VersionID) |
db662ca1 |
456 | text_versionid(&tf, p->words, &conf); |
d7482997 |
457 | } |
458 | |
459 | /* |
460 | * Tidy up |
461 | */ |
2ac8ceac |
462 | text_output(&tf, NULL); /* end charset conversion */ |
463 | fclose(tf.fp); |
e5e6bf9d |
464 | sfree(conf.asect); |
50d6b4bd |
465 | sfree(conf.filename); |
d7482997 |
466 | } |
467 | |
2ac8ceac |
468 | static void text_output(textfile *tf, const wchar_t *s) |
469 | { |
470 | char buf[256]; |
471 | int ret, len; |
472 | const wchar_t **sp; |
473 | |
474 | if (!s) { |
475 | sp = NULL; |
476 | len = 1; |
477 | } else { |
478 | sp = &s; |
479 | len = ustrlen(s); |
480 | } |
481 | |
482 | while (len > 0) { |
483 | ret = charset_from_unicode(sp, &len, buf, lenof(buf), |
484 | tf->charset, &tf->state, NULL); |
485 | if (!sp) |
486 | len = 0; |
487 | fwrite(buf, 1, ret, tf->fp); |
d7482997 |
488 | } |
d7482997 |
489 | } |
490 | |
2ac8ceac |
491 | static void text_output_many(textfile *tf, int n, wchar_t c) |
492 | { |
493 | wchar_t s[2]; |
494 | s[0] = c; |
495 | s[1] = L'\0'; |
496 | while (n--) |
497 | text_output(tf, s); |
498 | } |
d7482997 |
499 | |
db662ca1 |
500 | static void text_rdaddw(rdstring *rs, word *text, word *end, textconfig *cfg) { |
d7482997 |
501 | for (; text && text != end; text = text->next) switch (text->type) { |
502 | case word_HyperLink: |
503 | case word_HyperEnd: |
504 | case word_UpperXref: |
505 | case word_LowerXref: |
506 | case word_XrefEnd: |
507 | case word_IndexRef: |
508 | break; |
509 | |
510 | case word_Normal: |
511 | case word_Emph: |
512 | case word_Code: |
513 | case word_WeakCode: |
514 | case word_WhiteSpace: |
515 | case word_EmphSpace: |
516 | case word_CodeSpace: |
517 | case word_WkCodeSpace: |
518 | case word_Quote: |
519 | case word_EmphQuote: |
520 | case word_CodeQuote: |
521 | case word_WkCodeQuote: |
522 | assert(text->type != word_CodeQuote && |
523 | text->type != word_WkCodeQuote); |
524 | if (towordstyle(text->type) == word_Emph && |
525 | (attraux(text->aux) == attr_First || |
526 | attraux(text->aux) == attr_Only)) |
db662ca1 |
527 | rdadds(rs, cfg->startemph); |
d7482997 |
528 | else if (towordstyle(text->type) == word_Code && |
529 | (attraux(text->aux) == attr_First || |
530 | attraux(text->aux) == attr_Only)) |
db662ca1 |
531 | rdadds(rs, cfg->lquote); |
d7482997 |
532 | if (removeattr(text->type) == word_Normal) { |
db662ca1 |
533 | if (cvt_ok(cfg->charset, text->text) || !text->alt) |
2ac8ceac |
534 | rdadds(rs, text->text); |
d7482997 |
535 | else |
db662ca1 |
536 | text_rdaddw(rs, text->alt, NULL, cfg); |
d7482997 |
537 | } else if (removeattr(text->type) == word_WhiteSpace) { |
2ac8ceac |
538 | rdadd(rs, L' '); |
d7482997 |
539 | } else if (removeattr(text->type) == word_Quote) { |
db662ca1 |
540 | rdadds(rs, quoteaux(text->aux) == quote_Open ? |
541 | cfg->lquote : cfg->rquote); |
d7482997 |
542 | } |
543 | if (towordstyle(text->type) == word_Emph && |
544 | (attraux(text->aux) == attr_Last || |
545 | attraux(text->aux) == attr_Only)) |
db662ca1 |
546 | rdadds(rs, cfg->endemph); |
d7482997 |
547 | else if (towordstyle(text->type) == word_Code && |
548 | (attraux(text->aux) == attr_Last || |
549 | attraux(text->aux) == attr_Only)) |
db662ca1 |
550 | rdadds(rs, cfg->rquote); |
d7482997 |
551 | break; |
552 | } |
553 | } |
554 | |
43341922 |
555 | static int text_width(void *, word *); |
d7482997 |
556 | |
43341922 |
557 | static int text_width_list(void *ctx, word *text) { |
d7482997 |
558 | int w = 0; |
559 | while (text) { |
43341922 |
560 | w += text_width(ctx, text); |
d7482997 |
561 | text = text->next; |
562 | } |
563 | return w; |
564 | } |
565 | |
43341922 |
566 | static int text_width(void *ctx, word *text) { |
db662ca1 |
567 | textconfig *cfg = (textconfig *)ctx; |
568 | int wid; |
569 | int attr; |
43341922 |
570 | |
d7482997 |
571 | switch (text->type) { |
572 | case word_HyperLink: |
573 | case word_HyperEnd: |
574 | case word_UpperXref: |
575 | case word_LowerXref: |
576 | case word_XrefEnd: |
577 | case word_IndexRef: |
578 | return 0; |
db662ca1 |
579 | } |
580 | |
581 | assert(text->type < word_internal_endattrs); |
582 | |
583 | wid = 0; |
584 | attr = towordstyle(text->type); |
585 | if (attr == word_Emph || attr == word_Code) { |
586 | if (attraux(text->aux) == attr_Only || |
587 | attraux(text->aux) == attr_First) |
588 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
589 | cfg->charset); |
590 | } |
591 | if (attr == word_Emph || attr == word_Code) { |
592 | if (attraux(text->aux) == attr_Only || |
593 | attraux(text->aux) == attr_Last) |
594 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
595 | cfg->charset); |
596 | } |
d7482997 |
597 | |
db662ca1 |
598 | switch (text->type) { |
d7482997 |
599 | case word_Normal: |
600 | case word_Emph: |
601 | case word_Code: |
602 | case word_WeakCode: |
db662ca1 |
603 | if (cvt_ok(cfg->charset, text->text) || !text->alt) |
604 | wid += ustrwid(text->text, cfg->charset); |
605 | else |
606 | wid += text_width_list(ctx, text->alt); |
607 | return wid; |
d7482997 |
608 | |
609 | case word_WhiteSpace: |
610 | case word_EmphSpace: |
611 | case word_CodeSpace: |
612 | case word_WkCodeSpace: |
613 | case word_Quote: |
614 | case word_EmphQuote: |
615 | case word_CodeQuote: |
616 | case word_WkCodeQuote: |
617 | assert(text->type != word_CodeQuote && |
618 | text->type != word_WkCodeQuote); |
db662ca1 |
619 | if (removeattr(text->type) == word_Quote) { |
620 | if (quoteaux(text->aux) == quote_Open) |
621 | wid += ustrwid(cfg->lquote, cfg->charset); |
622 | else |
623 | wid += ustrwid(cfg->rquote, cfg->charset); |
624 | } else |
625 | wid++; /* space */ |
d7482997 |
626 | } |
db662ca1 |
627 | |
628 | return wid; |
d7482997 |
629 | } |
630 | |
2ac8ceac |
631 | static void text_heading(textfile *tf, word *tprefix, word *nprefix, |
632 | word *text, alignstruct align, |
db662ca1 |
633 | int indent, int width, textconfig *cfg) { |
2ac8ceac |
634 | rdstring t = { 0, 0, NULL }; |
d7482997 |
635 | int margin, length; |
636 | int firstlinewidth, wrapwidth; |
637 | wrappedline *wrapping, *p; |
638 | |
6e674706 |
639 | if (align.number_at_all) { |
640 | if (align.just_numbers && nprefix) { |
641 | text_rdaddw(&t, nprefix, NULL, cfg); |
642 | rdadds(&t, align.number_suffix); |
643 | } else if (!align.just_numbers && tprefix) { |
644 | text_rdaddw(&t, tprefix, NULL, cfg); |
645 | rdadds(&t, align.number_suffix); |
646 | } |
d7482997 |
647 | } |
db662ca1 |
648 | margin = length = ustrwid(t.text ? t.text : L"", cfg->charset); |
d7482997 |
649 | |
650 | if (align.align == LEFTPLUS) { |
651 | margin = indent - margin; |
652 | if (margin < 0) margin = 0; |
653 | firstlinewidth = indent + width - margin - length; |
654 | wrapwidth = width; |
655 | } else if (align.align == LEFT || align.align == CENTRE) { |
656 | margin = 0; |
657 | firstlinewidth = indent + width - length; |
658 | wrapwidth = indent + width; |
659 | } |
660 | |
2ac8ceac |
661 | wrapping = wrap_para(text, firstlinewidth, wrapwidth, |
db662ca1 |
662 | text_width, cfg, 0); |
d7482997 |
663 | for (p = wrapping; p; p = p->next) { |
db662ca1 |
664 | text_rdaddw(&t, p->begin, p->end, cfg); |
665 | length = ustrwid(t.text ? t.text : L"", cfg->charset); |
d7482997 |
666 | if (align.align == CENTRE) { |
667 | margin = (indent + width - length)/2; |
668 | if (margin < 0) margin = 0; |
669 | } |
2ac8ceac |
670 | text_output_many(tf, margin, L' '); |
671 | text_output(tf, t.text); |
672 | text_output(tf, L"\n"); |
db662ca1 |
673 | if (*align.underline) { |
2ac8ceac |
674 | text_output_many(tf, margin, L' '); |
db662ca1 |
675 | while (length > 0) { |
676 | text_output(tf, align.underline); |
677 | length -= ustrwid(align.underline, cfg->charset); |
678 | } |
2ac8ceac |
679 | text_output(tf, L"\n"); |
d7482997 |
680 | } |
681 | if (align.align == LEFTPLUS) |
682 | margin = indent; |
683 | else |
684 | margin = 0; |
685 | sfree(t.text); |
2ac8ceac |
686 | t = empty_rdstring; |
d7482997 |
687 | } |
688 | wrap_free(wrapping); |
2ac8ceac |
689 | text_output(tf, L"\n"); |
d7482997 |
690 | |
691 | sfree(t.text); |
692 | } |
693 | |
db662ca1 |
694 | static void text_rule(textfile *tf, int indent, int width, textconfig *cfg) { |
2ac8ceac |
695 | text_output_many(tf, indent, L' '); |
db662ca1 |
696 | while (width > 0) { |
697 | text_output(tf, cfg->rule); |
698 | width -= ustrwid(cfg->rule, cfg->charset); |
699 | } |
2ac8ceac |
700 | text_output_many(tf, 2, L'\n'); |
d7482997 |
701 | } |
702 | |
2ac8ceac |
703 | static void text_para(textfile *tf, word *prefix, wchar_t *prefixextra, |
db662ca1 |
704 | word *text, int indent, int extraindent, int width, |
705 | textconfig *cfg) { |
d7482997 |
706 | wrappedline *wrapping, *p; |
2ac8ceac |
707 | rdstring pfx = { 0, 0, NULL }; |
d7482997 |
708 | int e; |
709 | int firstlinewidth = width; |
710 | |
711 | if (prefix) { |
db662ca1 |
712 | text_rdaddw(&pfx, prefix, NULL, cfg); |
d7482997 |
713 | if (prefixextra) |
2ac8ceac |
714 | rdadds(&pfx, prefixextra); |
715 | text_output_many(tf, indent, L' '); |
716 | text_output(tf, pfx.text); |
c83c6495 |
717 | /* If the prefix is too long, shorten the first line to fit. */ |
db662ca1 |
718 | e = extraindent - ustrwid(pfx.text ? pfx.text : L"", cfg->charset); |
d7482997 |
719 | if (e < 0) { |
c83c6495 |
720 | firstlinewidth += e; /* this decreases it, since e < 0 */ |
d7482997 |
721 | if (firstlinewidth < 0) { |
722 | e = indent + extraindent; |
723 | firstlinewidth = width; |
2ac8ceac |
724 | text_output(tf, L"\n"); |
c83c6495 |
725 | } else |
726 | e = 0; |
d7482997 |
727 | } |
728 | sfree(pfx.text); |
729 | } else |
730 | e = indent + extraindent; |
731 | |
2ac8ceac |
732 | wrapping = wrap_para(text, firstlinewidth, width, |
db662ca1 |
733 | text_width, cfg, 0); |
d7482997 |
734 | for (p = wrapping; p; p = p->next) { |
2ac8ceac |
735 | rdstring t = { 0, 0, NULL }; |
db662ca1 |
736 | text_rdaddw(&t, p->begin, p->end, cfg); |
2ac8ceac |
737 | text_output_many(tf, e, L' '); |
738 | text_output(tf, t.text); |
739 | text_output(tf, L"\n"); |
d7482997 |
740 | e = indent + extraindent; |
741 | sfree(t.text); |
742 | } |
743 | wrap_free(wrapping); |
2ac8ceac |
744 | text_output(tf, L"\n"); |
d7482997 |
745 | } |
746 | |
2ac8ceac |
747 | static void text_codepara(textfile *tf, word *text, int indent, int width) { |
d7482997 |
748 | for (; text; text = text->next) if (text->type == word_WeakCode) { |
db662ca1 |
749 | int wid = ustrwid(text->text, tf->charset); |
750 | if (wid > width) |
751 | error(err_text_codeline, &text->fpos, wid, width); |
2ac8ceac |
752 | text_output_many(tf, indent, L' '); |
753 | text_output(tf, text->text); |
754 | text_output(tf, L"\n"); |
d7482997 |
755 | } |
756 | |
2ac8ceac |
757 | text_output(tf, L"\n"); |
d7482997 |
758 | } |
759 | |
db662ca1 |
760 | static void text_versionid(textfile *tf, word *text, textconfig *cfg) { |
2ac8ceac |
761 | rdstring t = { 0, 0, NULL }; |
d7482997 |
762 | |
db662ca1 |
763 | rdadd(&t, L'['); |
764 | text_rdaddw(&t, text, NULL, cfg); |
765 | rdadd(&t, L']'); |
2ac8ceac |
766 | rdadd(&t, L'\n'); |
d7482997 |
767 | |
2ac8ceac |
768 | text_output(tf, t.text); |
d7482997 |
769 | sfree(t.text); |
770 | } |