5dd44dce |
1 | /* |
2 | * info backend for Halibut |
3 | * |
b921687e |
4 | * Possible future work: |
5dd44dce |
5 | * |
b921687e |
6 | * - configurable choice of how to allocate node names? |
7 | * + possibly a template-like approach, choosing node names to |
8 | * be the full section title or perhaps the internal keyword? |
9 | * + neither of those seems quite right. Perhaps instead a |
10 | * Windows Help-like mechanism, where a magic config |
11 | * directive allows user choice of name for every node. |
12 | * + Only trouble with that is, now what happens to the section |
13 | * numbers? Do they become completely vestigial and just sit |
14 | * in the title text of each node? Or do we keep them in the |
15 | * menus somehow? I think people might occasionally want to |
16 | * go to a section by number, if only because all the _other_ |
17 | * formats of the same document will reference the numbers |
18 | * all the time. So our menu lines could look like one of |
19 | * these: |
20 | * * Nodename: Section 1.2. Title of section. |
21 | * * Section 1.2: Nodename. Title of section. |
5dd44dce |
22 | * |
b921687e |
23 | * - might be helpful to diagnose duplicate node names! |
5dd44dce |
24 | */ |
25 | |
26 | #include <stdio.h> |
27 | #include <stdlib.h> |
28 | #include <assert.h> |
29 | #include "halibut.h" |
30 | |
31 | typedef struct { |
32 | char *filename; |
33 | int maxfilesize; |
91f93b94 |
34 | int charset; |
5b1d0032 |
35 | int listindentbefore, listindentafter; |
36 | int indent_code, width, index_width; |
37 | wchar_t *bullet, *listsuffix; |
38 | wchar_t *startemph, *endemph; |
39 | wchar_t *lquote, *rquote; |
40 | wchar_t *sectsuffix, *underline; |
41 | wchar_t *rule; |
5dd44dce |
42 | } infoconfig; |
43 | |
91f93b94 |
44 | typedef struct { |
45 | rdstringc output; |
46 | int charset; |
47 | charset_state state; |
48 | int wcmode; |
49 | } info_data; |
50 | #define EMPTY_INFO_DATA { { 0, 0, NULL }, 0, CHARSET_INIT_STATE, FALSE } |
51 | static const info_data empty_info_data = EMPTY_INFO_DATA; |
52 | |
5dd44dce |
53 | typedef struct node_tag node; |
54 | struct node_tag { |
55 | node *listnext; |
56 | node *up, *prev, *next, *lastchild; |
57 | int pos, started_menu, filenum; |
58 | char *name; |
91f93b94 |
59 | info_data text; |
5dd44dce |
60 | }; |
61 | |
62 | typedef struct { |
63 | char *text; |
91f93b94 |
64 | int length; |
5dd44dce |
65 | int nnodes, nodesize; |
66 | node **nodes; |
67 | } info_idx; |
68 | |
91f93b94 |
69 | static int info_rdadd(info_data *, wchar_t); |
70 | static int info_rdadds(info_data *, wchar_t const *); |
71 | static int info_rdaddc(info_data *, char); |
72 | static int info_rdaddsc(info_data *, char const *); |
5dd44dce |
73 | |
5b1d0032 |
74 | static void info_heading(info_data *, word *, word *, int, infoconfig *); |
75 | static void info_rule(info_data *, int, int, infoconfig *); |
91f93b94 |
76 | static void info_para(info_data *, word *, wchar_t *, word *, keywordlist *, |
5b1d0032 |
77 | int, int, int, infoconfig *); |
91f93b94 |
78 | static void info_codepara(info_data *, word *, int, int); |
5b1d0032 |
79 | static void info_versionid(info_data *, word *, infoconfig *); |
80 | static void info_menu_item(info_data *, node *, paragraph *, infoconfig *); |
5dd44dce |
81 | static word *info_transform_wordlist(word *, keywordlist *); |
82 | static int info_check_index(word *, node *, indexdata *); |
83 | |
5b1d0032 |
84 | static int info_rdaddwc(info_data *, word *, word *, int, infoconfig *); |
5dd44dce |
85 | |
91f93b94 |
86 | static node *info_node_new(char *name, int charset); |
5b1d0032 |
87 | static char *info_node_name(paragraph *p, infoconfig *); |
5dd44dce |
88 | |
89 | static infoconfig info_configure(paragraph *source) { |
90 | infoconfig ret; |
5b1d0032 |
91 | paragraph *p; |
5dd44dce |
92 | |
93 | /* |
94 | * Defaults. |
95 | */ |
96 | ret.filename = dupstr("output.info"); |
97 | ret.maxfilesize = 64 << 10; |
91f93b94 |
98 | ret.charset = CS_ASCII; |
5b1d0032 |
99 | ret.width = 70; |
100 | ret.listindentbefore = 1; |
101 | ret.listindentafter = 3; |
102 | ret.indent_code = 2; |
103 | ret.index_width = 40; |
104 | ret.listsuffix = L"."; |
105 | ret.bullet = L"\x2022\0-\0\0"; |
106 | ret.rule = L"\x2500\0-\0\0"; |
107 | ret.startemph = L"_\0_\0\0"; |
108 | ret.endemph = uadv(ret.startemph); |
109 | ret.lquote = L"\x2018\0\x2019\0`\0'\0\0"; |
110 | ret.rquote = uadv(ret.lquote); |
111 | ret.sectsuffix = L": "; |
112 | ret.underline = L"\x203E\0-\0\0"; |
113 | |
114 | /* |
115 | * Two-pass configuration so that we can pick up global config |
116 | * (e.g. `quotes') before having it overridden by specific |
117 | * config (`info-quotes'), irrespective of the order in which |
118 | * they occur. |
119 | */ |
120 | for (p = source; p; p = p->next) { |
121 | if (p->type == para_Config) { |
122 | if (!ustricmp(p->keyword, L"quotes")) { |
123 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
124 | ret.lquote = uadv(p->keyword); |
125 | ret.rquote = uadv(ret.lquote); |
126 | } |
127 | } |
128 | } |
129 | } |
5dd44dce |
130 | |
5b1d0032 |
131 | for (p = source; p; p = p->next) { |
132 | if (p->type == para_Config) { |
133 | if (!ustricmp(p->keyword, L"info-filename")) { |
5dd44dce |
134 | sfree(ret.filename); |
5b1d0032 |
135 | ret.filename = dupstr(adv(p->origkeyword)); |
136 | } else if (!ustricmp(p->keyword, L"info-charset")) { |
137 | char *csname = utoa_dup(uadv(p->keyword), CS_ASCII); |
91f93b94 |
138 | ret.charset = charset_from_localenc(csname); |
139 | sfree(csname); |
5b1d0032 |
140 | } else if (!ustricmp(p->keyword, L"info-max-file-size")) { |
141 | ret.maxfilesize = utoi(uadv(p->keyword)); |
142 | } else if (!ustricmp(p->keyword, L"info-width")) { |
143 | ret.width = utoi(uadv(p->keyword)); |
144 | } else if (!ustricmp(p->keyword, L"info-indent-code")) { |
145 | ret.indent_code = utoi(uadv(p->keyword)); |
146 | } else if (!ustricmp(p->keyword, L"info-index-width")) { |
147 | ret.index_width = utoi(uadv(p->keyword)); |
148 | } else if (!ustricmp(p->keyword, L"info-list-indent")) { |
149 | ret.listindentbefore = utoi(uadv(p->keyword)); |
150 | } else if (!ustricmp(p->keyword, L"info-listitem-indent")) { |
151 | ret.listindentafter = utoi(uadv(p->keyword)); |
152 | } else if (!ustricmp(p->keyword, L"info-section-suffix")) { |
153 | ret.sectsuffix = uadv(p->keyword); |
154 | } else if (!ustricmp(p->keyword, L"info-underline")) { |
155 | ret.underline = uadv(p->keyword); |
156 | } else if (!ustricmp(p->keyword, L"info-bullet")) { |
157 | ret.bullet = uadv(p->keyword); |
158 | } else if (!ustricmp(p->keyword, L"info-rule")) { |
159 | ret.rule = uadv(p->keyword); |
160 | } else if (!ustricmp(p->keyword, L"info-list-suffix")) { |
161 | ret.listsuffix = uadv(p->keyword); |
162 | } else if (!ustricmp(p->keyword, L"info-emphasis")) { |
163 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
164 | ret.startemph = uadv(p->keyword); |
165 | ret.endemph = uadv(ret.startemph); |
166 | } |
167 | } else if (!ustricmp(p->keyword, L"info-quotes")) { |
168 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
169 | ret.lquote = uadv(p->keyword); |
170 | ret.rquote = uadv(ret.lquote); |
171 | } |
5dd44dce |
172 | } |
173 | } |
174 | } |
175 | |
5b1d0032 |
176 | /* |
177 | * Now process fallbacks on quote characters, underlines, the |
178 | * rule character, the emphasis characters, and bullets. |
179 | */ |
180 | while (*uadv(ret.rquote) && *uadv(uadv(ret.rquote)) && |
181 | (!cvt_ok(ret.charset, ret.lquote) || |
182 | !cvt_ok(ret.charset, ret.rquote))) { |
183 | ret.lquote = uadv(ret.rquote); |
184 | ret.rquote = uadv(ret.lquote); |
185 | } |
186 | |
187 | while (*uadv(ret.endemph) && *uadv(uadv(ret.endemph)) && |
188 | (!cvt_ok(ret.charset, ret.startemph) || |
189 | !cvt_ok(ret.charset, ret.endemph))) { |
190 | ret.startemph = uadv(ret.endemph); |
191 | ret.endemph = uadv(ret.startemph); |
192 | } |
193 | |
194 | while (*ret.underline && *uadv(ret.underline) && |
195 | !cvt_ok(ret.charset, ret.underline)) |
196 | ret.underline = uadv(ret.underline); |
197 | |
198 | while (*ret.bullet && *uadv(ret.bullet) && |
199 | !cvt_ok(ret.charset, ret.bullet)) |
200 | ret.bullet = uadv(ret.bullet); |
201 | |
202 | while (*ret.rule && *uadv(ret.rule) && |
203 | !cvt_ok(ret.charset, ret.rule)) |
204 | ret.rule = uadv(ret.rule); |
205 | |
5dd44dce |
206 | return ret; |
207 | } |
208 | |
209 | paragraph *info_config_filename(char *filename) |
210 | { |
e4ea58f8 |
211 | return cmdline_cfg_simple("info-filename", filename, NULL); |
5dd44dce |
212 | } |
213 | |
214 | void info_backend(paragraph *sourceform, keywordlist *keywords, |
43341922 |
215 | indexdata *idx, void *unused) { |
5dd44dce |
216 | paragraph *p; |
217 | infoconfig conf; |
218 | word *prefix, *body, *wp; |
219 | word spaceword; |
91f93b94 |
220 | wchar_t *prefixextra; |
5dd44dce |
221 | int nesting, nestindent; |
222 | int indentb, indenta; |
223 | int filepos; |
224 | int has_index; |
91f93b94 |
225 | info_data intro_text = EMPTY_INFO_DATA; |
5dd44dce |
226 | node *topnode, *currnode; |
227 | word bullet; |
228 | FILE *fp; |
229 | |
43341922 |
230 | IGNORE(unused); |
5dd44dce |
231 | |
232 | conf = info_configure(sourceform); |
233 | |
234 | /* |
235 | * Go through and create a node for each section. |
236 | */ |
91f93b94 |
237 | topnode = info_node_new("Top", conf.charset); |
5dd44dce |
238 | currnode = topnode; |
239 | for (p = sourceform; p; p = p->next) switch (p->type) { |
240 | /* |
241 | * Chapter titles. |
242 | */ |
243 | case para_Chapter: |
244 | case para_Appendix: |
245 | case para_UnnumberedChapter: |
246 | case para_Heading: |
247 | case para_Subsect: |
248 | { |
249 | node *newnode, *upnode; |
250 | char *nodename; |
251 | |
5b1d0032 |
252 | nodename = info_node_name(p, &conf); |
91f93b94 |
253 | newnode = info_node_new(nodename, conf.charset); |
5dd44dce |
254 | sfree(nodename); |
255 | |
256 | p->private_data = newnode; |
257 | |
258 | if (p->parent) |
259 | upnode = (node *)p->parent->private_data; |
260 | else |
261 | upnode = topnode; |
262 | assert(upnode); |
263 | newnode->up = upnode; |
264 | |
265 | currnode->next = newnode; |
266 | newnode->prev = currnode; |
267 | |
268 | currnode->listnext = newnode; |
269 | currnode = newnode; |
270 | } |
271 | break; |
272 | } |
273 | |
274 | /* |
275 | * Set up the display form of each index entry. |
276 | */ |
277 | { |
278 | int i; |
279 | indexentry *entry; |
280 | |
281 | for (i = 0; (entry = index234(idx->entries, i)) != NULL; i++) { |
f1530049 |
282 | info_idx *ii = snew(info_idx); |
91f93b94 |
283 | info_data id = EMPTY_INFO_DATA; |
284 | |
285 | id.charset = conf.charset; |
5dd44dce |
286 | |
287 | ii->nnodes = ii->nodesize = 0; |
288 | ii->nodes = NULL; |
289 | |
5b1d0032 |
290 | ii->length = info_rdaddwc(&id, entry->text, NULL, FALSE, &conf); |
f4551933 |
291 | |
91f93b94 |
292 | ii->text = id.output.text; |
5dd44dce |
293 | |
294 | entry->backend_data = ii; |
295 | } |
296 | } |
297 | |
298 | /* |
299 | * An Info file begins with a piece of introductory text which |
300 | * is apparently never shown anywhere. This seems to me to be a |
d4c7e130 |
301 | * good place to put the copyright notice and the version IDs. |
302 | * Also, Info directory entries are expected to go here. |
5dd44dce |
303 | */ |
91f93b94 |
304 | intro_text.charset = conf.charset; |
5dd44dce |
305 | |
91f93b94 |
306 | info_rdaddsc(&intro_text, |
5dd44dce |
307 | "This Info file generated by Halibut, "); |
91f93b94 |
308 | info_rdaddsc(&intro_text, version); |
309 | info_rdaddsc(&intro_text, "\n\n"); |
5dd44dce |
310 | |
311 | for (p = sourceform; p; p = p->next) |
d4c7e130 |
312 | if (p->type == para_Config && |
313 | !ustricmp(p->keyword, L"info-dir-entry")) { |
314 | wchar_t *section, *shortname, *longname, *kw; |
315 | char *s; |
316 | |
317 | section = uadv(p->keyword); |
318 | shortname = *section ? uadv(section) : NULL; |
319 | longname = *shortname ? uadv(shortname) : NULL; |
320 | kw = *longname ? uadv(longname) : NULL; |
321 | |
322 | if (!*longname) { |
323 | error(err_infodirentry, &p->fpos); |
324 | continue; |
325 | } |
326 | |
91f93b94 |
327 | info_rdaddsc(&intro_text, "INFO-DIR-SECTION "); |
328 | info_rdadds(&intro_text, section); |
329 | info_rdaddsc(&intro_text, "\nSTART-INFO-DIR-ENTRY\n* "); |
330 | info_rdadds(&intro_text, shortname); |
331 | info_rdaddsc(&intro_text, ": ("); |
d4c7e130 |
332 | s = dupstr(conf.filename); |
333 | if (strlen(s) > 5 && !strcmp(s+strlen(s)-5, ".info")) |
334 | s[strlen(s)-5] = '\0'; |
91f93b94 |
335 | info_rdaddsc(&intro_text, s); |
d4c7e130 |
336 | sfree(s); |
91f93b94 |
337 | info_rdaddsc(&intro_text, ")"); |
d4c7e130 |
338 | if (*kw) { |
339 | keyword *kwl = kw_lookup(keywords, kw); |
340 | if (kwl && kwl->para->private_data) { |
341 | node *n = (node *)kwl->para->private_data; |
91f93b94 |
342 | info_rdaddsc(&intro_text, n->name); |
d4c7e130 |
343 | } |
344 | } |
91f93b94 |
345 | info_rdaddsc(&intro_text, ". "); |
346 | info_rdadds(&intro_text, longname); |
347 | info_rdaddsc(&intro_text, "\nEND-INFO-DIR-ENTRY\n\n"); |
d4c7e130 |
348 | } |
349 | |
350 | for (p = sourceform; p; p = p->next) |
5dd44dce |
351 | if (p->type == para_Copyright) |
352 | info_para(&intro_text, NULL, NULL, p->words, keywords, |
5b1d0032 |
353 | 0, 0, conf.width, &conf); |
5dd44dce |
354 | |
355 | for (p = sourceform; p; p = p->next) |
356 | if (p->type == para_VersionID) |
5b1d0032 |
357 | info_versionid(&intro_text, p->words, &conf); |
5dd44dce |
358 | |
91f93b94 |
359 | if (intro_text.output.text[intro_text.output.pos-1] != '\n') |
360 | info_rdaddc(&intro_text, '\n'); |
5dd44dce |
361 | |
362 | /* Do the title */ |
363 | for (p = sourceform; p; p = p->next) |
364 | if (p->type == para_Title) |
5b1d0032 |
365 | info_heading(&topnode->text, NULL, p->words, conf.width, &conf); |
5dd44dce |
366 | |
5b1d0032 |
367 | nestindent = conf.listindentbefore + conf.listindentafter; |
5dd44dce |
368 | nesting = 0; |
369 | |
370 | currnode = topnode; |
371 | |
372 | /* Do the main document */ |
373 | for (p = sourceform; p; p = p->next) switch (p->type) { |
374 | |
375 | case para_QuotePush: |
376 | nesting += 2; |
377 | break; |
378 | case para_QuotePop: |
379 | nesting -= 2; |
380 | assert(nesting >= 0); |
381 | break; |
382 | |
383 | case para_LcontPush: |
384 | nesting += nestindent; |
385 | break; |
386 | case para_LcontPop: |
387 | nesting -= nestindent; |
388 | assert(nesting >= 0); |
389 | break; |
390 | |
391 | /* |
392 | * Things we ignore because we've already processed them or |
393 | * aren't going to touch them in this pass. |
394 | */ |
395 | case para_IM: |
396 | case para_BR: |
397 | case para_Biblio: /* only touch BiblioCited */ |
398 | case para_VersionID: |
399 | case para_NoCite: |
400 | case para_Title: |
401 | break; |
402 | |
403 | /* |
404 | * Chapter titles. |
405 | */ |
406 | case para_Chapter: |
407 | case para_Appendix: |
408 | case para_UnnumberedChapter: |
409 | case para_Heading: |
410 | case para_Subsect: |
411 | currnode = p->private_data; |
412 | assert(currnode); |
413 | assert(currnode->up); |
414 | |
415 | if (!currnode->up->started_menu) { |
91f93b94 |
416 | info_rdaddsc(&currnode->up->text, "* Menu:\n\n"); |
5dd44dce |
417 | currnode->up->started_menu = TRUE; |
418 | } |
5b1d0032 |
419 | info_menu_item(&currnode->up->text, currnode, p, &conf); |
5dd44dce |
420 | |
421 | has_index |= info_check_index(p->words, currnode, idx); |
5b1d0032 |
422 | info_heading(&currnode->text, p->kwtext, p->words, conf.width, &conf); |
5dd44dce |
423 | nesting = 0; |
424 | break; |
425 | |
426 | case para_Rule: |
5b1d0032 |
427 | info_rule(&currnode->text, nesting, conf.width - nesting, &conf); |
5dd44dce |
428 | break; |
429 | |
430 | case para_Normal: |
431 | case para_Copyright: |
432 | case para_DescribedThing: |
433 | case para_Description: |
434 | case para_BiblioCited: |
435 | case para_Bullet: |
436 | case para_NumberedList: |
437 | has_index |= info_check_index(p->words, currnode, idx); |
438 | if (p->type == para_Bullet) { |
439 | bullet.next = NULL; |
440 | bullet.alt = NULL; |
441 | bullet.type = word_Normal; |
5b1d0032 |
442 | bullet.text = conf.bullet; |
5dd44dce |
443 | prefix = • |
444 | prefixextra = NULL; |
5b1d0032 |
445 | indentb = conf.listindentbefore; |
446 | indenta = conf.listindentafter; |
5dd44dce |
447 | } else if (p->type == para_NumberedList) { |
448 | prefix = p->kwtext; |
5b1d0032 |
449 | prefixextra = conf.listsuffix; |
450 | indentb = conf.listindentbefore; |
451 | indenta = conf.listindentafter; |
5dd44dce |
452 | } else if (p->type == para_Description) { |
453 | prefix = NULL; |
454 | prefixextra = NULL; |
5b1d0032 |
455 | indentb = conf.listindentbefore; |
456 | indenta = conf.listindentafter; |
5dd44dce |
457 | } else { |
458 | prefix = NULL; |
459 | prefixextra = NULL; |
460 | indentb = indenta = 0; |
461 | } |
462 | if (p->type == para_BiblioCited) { |
463 | body = dup_word_list(p->kwtext); |
464 | for (wp = body; wp->next; wp = wp->next); |
465 | wp->next = &spaceword; |
466 | spaceword.next = p->words; |
467 | spaceword.alt = NULL; |
468 | spaceword.type = word_WhiteSpace; |
469 | spaceword.text = NULL; |
470 | } else { |
471 | wp = NULL; |
472 | body = p->words; |
473 | } |
474 | info_para(&currnode->text, prefix, prefixextra, body, keywords, |
475 | nesting + indentb, indenta, |
5b1d0032 |
476 | conf.width - nesting - indentb - indenta, &conf); |
5dd44dce |
477 | if (wp) { |
478 | wp->next = NULL; |
479 | free_word_list(body); |
480 | } |
481 | break; |
482 | |
483 | case para_Code: |
484 | info_codepara(&currnode->text, p->words, |
5b1d0032 |
485 | nesting + conf.indent_code, |
486 | conf.width - nesting - 2 * conf.indent_code); |
5dd44dce |
487 | break; |
488 | } |
489 | |
490 | /* |
491 | * Create an index node if required. |
492 | */ |
493 | if (has_index) { |
494 | node *newnode; |
495 | int i, j, k; |
496 | indexentry *entry; |
497 | |
91f93b94 |
498 | newnode = info_node_new("Index", conf.charset); |
5dd44dce |
499 | newnode->up = topnode; |
500 | |
501 | currnode->next = newnode; |
502 | newnode->prev = currnode; |
503 | currnode->listnext = newnode; |
504 | |
91f93b94 |
505 | info_rdaddsc(&newnode->text, "Index\n-----\n\n"); |
5dd44dce |
506 | |
5b1d0032 |
507 | info_menu_item(&topnode->text, newnode, NULL, &conf); |
5dd44dce |
508 | |
509 | for (i = 0; (entry = index234(idx->entries, i)) != NULL; i++) { |
510 | info_idx *ii = (info_idx *)entry->backend_data; |
511 | |
512 | for (j = 0; j < ii->nnodes; j++) { |
5dd44dce |
513 | /* |
514 | * When we have multiple references for a single |
515 | * index term, we only display the actual term on |
516 | * the first line, to make it clear that the terms |
517 | * really are the same. |
518 | */ |
519 | if (j == 0) |
91f93b94 |
520 | info_rdaddsc(&newnode->text, ii->text); |
5b1d0032 |
521 | for (k = (j ? 0 : ii->length); k < conf.index_width-2; k++) |
91f93b94 |
522 | info_rdaddc(&newnode->text, ' '); |
5b1d0032 |
523 | info_rdaddsc(&newnode->text, " *Note "); |
91f93b94 |
524 | info_rdaddsc(&newnode->text, ii->nodes[j]->name); |
525 | info_rdaddsc(&newnode->text, "::\n"); |
5dd44dce |
526 | } |
527 | } |
528 | } |
529 | |
530 | /* |
531 | * Finalise the text of each node, by adding the ^_ delimiter |
532 | * and the node line at the top. |
533 | */ |
534 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
91f93b94 |
535 | char *origtext = currnode->text.output.text; |
536 | currnode->text = empty_info_data; |
537 | currnode->text.charset = conf.charset; |
538 | info_rdaddsc(&currnode->text, "\037\nFile: "); |
539 | info_rdaddsc(&currnode->text, conf.filename); |
540 | info_rdaddsc(&currnode->text, ", Node: "); |
541 | info_rdaddsc(&currnode->text, currnode->name); |
5dd44dce |
542 | if (currnode->prev) { |
91f93b94 |
543 | info_rdaddsc(&currnode->text, ", Prev: "); |
544 | info_rdaddsc(&currnode->text, currnode->prev->name); |
5dd44dce |
545 | } |
91f93b94 |
546 | info_rdaddsc(&currnode->text, ", Up: "); |
547 | info_rdaddsc(&currnode->text, (currnode->up ? |
548 | currnode->up->name : "(dir)")); |
5dd44dce |
549 | if (currnode->next) { |
91f93b94 |
550 | info_rdaddsc(&currnode->text, ", Next: "); |
551 | info_rdaddsc(&currnode->text, currnode->next->name); |
5dd44dce |
552 | } |
91f93b94 |
553 | info_rdaddsc(&currnode->text, "\n\n"); |
554 | info_rdaddsc(&currnode->text, origtext); |
5dd44dce |
555 | /* |
556 | * Just make _absolutely_ sure we end with a newline. |
557 | */ |
91f93b94 |
558 | if (currnode->text.output.text[currnode->text.output.pos-1] != '\n') |
559 | info_rdaddc(&currnode->text, '\n'); |
5dd44dce |
560 | |
561 | sfree(origtext); |
562 | } |
563 | |
564 | /* |
565 | * Compute the offsets for the tag table. |
566 | */ |
91f93b94 |
567 | filepos = intro_text.output.pos; |
5dd44dce |
568 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
569 | currnode->pos = filepos; |
91f93b94 |
570 | filepos += currnode->text.output.pos; |
5dd44dce |
571 | } |
572 | |
573 | /* |
574 | * Split into sub-files. |
575 | */ |
576 | if (conf.maxfilesize > 0) { |
91f93b94 |
577 | int currfilesize = intro_text.output.pos, currfilenum = 1; |
5dd44dce |
578 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
91f93b94 |
579 | if (currfilesize > intro_text.output.pos && |
580 | currfilesize + currnode->text.output.pos > conf.maxfilesize) { |
5dd44dce |
581 | currfilenum++; |
91f93b94 |
582 | currfilesize = intro_text.output.pos; |
5dd44dce |
583 | } |
584 | currnode->filenum = currfilenum; |
91f93b94 |
585 | currfilesize += currnode->text.output.pos; |
5dd44dce |
586 | } |
587 | } |
588 | |
589 | /* |
590 | * Write the primary output file. |
591 | */ |
592 | fp = fopen(conf.filename, "w"); |
593 | if (!fp) { |
594 | error(err_cantopenw, conf.filename); |
595 | return; |
596 | } |
91f93b94 |
597 | fputs(intro_text.output.text, fp); |
5dd44dce |
598 | if (conf.maxfilesize == 0) { |
599 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
91f93b94 |
600 | fputs(currnode->text.output.text, fp); |
5dd44dce |
601 | } else { |
602 | int filenum = 0; |
603 | fprintf(fp, "\037\nIndirect:\n"); |
604 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
605 | if (filenum != currnode->filenum) { |
606 | filenum = currnode->filenum; |
607 | fprintf(fp, "%s-%d: %d\n", conf.filename, filenum, |
608 | currnode->pos); |
609 | } |
610 | } |
611 | fprintf(fp, "\037\nTag Table:\n"); |
612 | if (conf.maxfilesize > 0) |
613 | fprintf(fp, "(Indirect)\n"); |
614 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
615 | fprintf(fp, "Node: %s\177%d\n", currnode->name, currnode->pos); |
616 | fprintf(fp, "\037\nEnd Tag Table\n"); |
617 | fclose(fp); |
618 | |
619 | /* |
620 | * Write the subfiles. |
621 | */ |
622 | if (conf.maxfilesize > 0) { |
623 | int filenum = 0; |
624 | fp = NULL; |
625 | |
626 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
627 | if (filenum != currnode->filenum) { |
628 | char *fname; |
629 | |
630 | filenum = currnode->filenum; |
631 | |
632 | if (fp) |
633 | fclose(fp); |
f1530049 |
634 | fname = snewn(strlen(conf.filename) + 40, char); |
5dd44dce |
635 | sprintf(fname, "%s-%d", conf.filename, filenum); |
636 | fp = fopen(fname, "w"); |
637 | if (!fp) { |
638 | error(err_cantopenw, fname); |
639 | return; |
640 | } |
641 | sfree(fname); |
91f93b94 |
642 | fputs(intro_text.output.text, fp); |
5dd44dce |
643 | } |
91f93b94 |
644 | fputs(currnode->text.output.text, fp); |
5dd44dce |
645 | } |
646 | |
647 | if (fp) |
648 | fclose(fp); |
649 | } |
650 | } |
651 | |
652 | static int info_check_index(word *w, node *n, indexdata *idx) |
653 | { |
654 | int ret = 0; |
655 | |
656 | for (; w; w = w->next) { |
657 | if (w->type == word_IndexRef) { |
658 | indextag *tag; |
659 | int i; |
660 | |
661 | tag = index_findtag(idx, w->text); |
662 | if (!tag) |
663 | break; |
664 | |
665 | for (i = 0; i < tag->nrefs; i++) { |
666 | indexentry *entry = tag->refs[i]; |
667 | info_idx *ii = (info_idx *)entry->backend_data; |
668 | |
669 | if (ii->nnodes > 0 && ii->nodes[ii->nnodes-1] == n) { |
670 | /* |
671 | * If the same index term is indexed twice |
672 | * within the same section, we only want to |
673 | * mention it once in the index. So do nothing |
674 | * here. |
675 | */ |
676 | continue; |
677 | } |
678 | |
679 | if (ii->nnodes >= ii->nodesize) { |
680 | ii->nodesize += 32; |
f1530049 |
681 | ii->nodes = sresize(ii->nodes, ii->nodesize, node *); |
5dd44dce |
682 | } |
683 | |
684 | ii->nodes[ii->nnodes++] = n; |
685 | |
686 | ret = 1; |
687 | } |
688 | } |
689 | } |
690 | |
691 | return ret; |
692 | } |
693 | |
5dd44dce |
694 | static word *info_transform_wordlist(word *words, keywordlist *keywords) |
695 | { |
696 | word *ret = dup_word_list(words); |
697 | word *w; |
698 | keyword *kwl; |
699 | |
700 | for (w = ret; w; w = w->next) { |
701 | w->private_data = NULL; |
702 | if (w->type == word_UpperXref || w->type == word_LowerXref) { |
703 | kwl = kw_lookup(keywords, w->text); |
704 | if (kwl) { |
705 | if (kwl->para->type == para_NumberedList || |
706 | kwl->para->type == para_BiblioCited) { |
707 | /* |
708 | * In Info, we do nothing special for xrefs to |
709 | * numbered list items or bibliography entries. |
710 | */ |
711 | break; |
712 | } else { |
713 | /* |
714 | * An xref to a different section has its text |
715 | * completely replaced. |
716 | */ |
717 | word *w2, *w3, *w4; |
718 | w2 = w3 = w->next; |
719 | w4 = NULL; |
720 | while (w2) { |
721 | if (w2->type == word_XrefEnd) { |
722 | w4 = w2->next; |
723 | w2->next = NULL; |
724 | break; |
725 | } |
726 | w2 = w2->next; |
727 | } |
728 | free_word_list(w3); |
729 | |
730 | /* |
731 | * Now w is the UpperXref / LowerXref we |
732 | * started with, and w4 is the next word after |
733 | * the corresponding XrefEnd (if any). The |
734 | * simplest thing is just to stick a pointer to |
735 | * the target node structure in the private |
736 | * data field of the xref word, and let |
737 | * info_rdaddwc and friends read the node name |
738 | * out from there. |
739 | */ |
740 | w->next = w4; |
741 | w->private_data = kwl->para->private_data; |
742 | assert(w->private_data); |
743 | } |
744 | } |
745 | } |
746 | } |
747 | |
748 | return ret; |
749 | } |
750 | |
5b1d0032 |
751 | static int info_rdaddwc(info_data *id, word *words, word *end, int xrefs, |
752 | infoconfig *cfg) { |
91f93b94 |
753 | int ret = 0; |
5dd44dce |
754 | |
755 | for (; words && words != end; words = words->next) switch (words->type) { |
756 | case word_HyperLink: |
757 | case word_HyperEnd: |
758 | case word_XrefEnd: |
759 | case word_IndexRef: |
760 | break; |
761 | |
762 | case word_Normal: |
763 | case word_Emph: |
764 | case word_Code: |
765 | case word_WeakCode: |
766 | case word_WhiteSpace: |
767 | case word_EmphSpace: |
768 | case word_CodeSpace: |
769 | case word_WkCodeSpace: |
770 | case word_Quote: |
771 | case word_EmphQuote: |
772 | case word_CodeQuote: |
773 | case word_WkCodeQuote: |
774 | assert(words->type != word_CodeQuote && |
775 | words->type != word_WkCodeQuote); |
776 | if (towordstyle(words->type) == word_Emph && |
777 | (attraux(words->aux) == attr_First || |
778 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
779 | ret += info_rdadds(id, cfg->startemph); |
5dd44dce |
780 | else if (towordstyle(words->type) == word_Code && |
781 | (attraux(words->aux) == attr_First || |
782 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
783 | ret += info_rdadds(id, cfg->lquote); |
5dd44dce |
784 | if (removeattr(words->type) == word_Normal) { |
91f93b94 |
785 | if (cvt_ok(id->charset, words->text) || !words->alt) |
786 | ret += info_rdadds(id, words->text); |
5dd44dce |
787 | else |
5b1d0032 |
788 | ret += info_rdaddwc(id, words->alt, NULL, FALSE, cfg); |
5dd44dce |
789 | } else if (removeattr(words->type) == word_WhiteSpace) { |
91f93b94 |
790 | ret += info_rdadd(id, L' '); |
5dd44dce |
791 | } else if (removeattr(words->type) == word_Quote) { |
5b1d0032 |
792 | ret += info_rdadds(id, quoteaux(words->aux) == quote_Open ? |
793 | cfg->lquote : cfg->rquote); |
5dd44dce |
794 | } |
795 | if (towordstyle(words->type) == word_Emph && |
796 | (attraux(words->aux) == attr_Last || |
797 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
798 | ret += info_rdadds(id, cfg->endemph); |
5dd44dce |
799 | else if (towordstyle(words->type) == word_Code && |
800 | (attraux(words->aux) == attr_Last || |
801 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
802 | ret += info_rdadds(id, cfg->rquote); |
5dd44dce |
803 | break; |
804 | |
805 | case word_UpperXref: |
806 | case word_LowerXref: |
807 | if (xrefs && words->private_data) { |
91f93b94 |
808 | /* |
809 | * This bit is structural and so must be done in char |
810 | * rather than wchar_t. |
811 | */ |
812 | ret += info_rdaddsc(id, "*Note "); |
813 | ret += info_rdaddsc(id, ((node *)words->private_data)->name); |
814 | ret += info_rdaddsc(id, "::"); |
5dd44dce |
815 | } |
816 | break; |
817 | } |
91f93b94 |
818 | |
819 | return ret; |
5dd44dce |
820 | } |
821 | |
5b1d0032 |
822 | static int info_width_internal(word *words, int xrefs, infoconfig *cfg); |
5dd44dce |
823 | |
5b1d0032 |
824 | static int info_width_internal_list(word *words, int xrefs, infoconfig *cfg) { |
5dd44dce |
825 | int w = 0; |
826 | while (words) { |
5b1d0032 |
827 | w += info_width_internal(words, xrefs, cfg); |
5dd44dce |
828 | words = words->next; |
829 | } |
830 | return w; |
831 | } |
832 | |
5b1d0032 |
833 | static int info_width_internal(word *words, int xrefs, infoconfig *cfg) { |
834 | int wid; |
835 | int attr; |
836 | |
5dd44dce |
837 | switch (words->type) { |
838 | case word_HyperLink: |
839 | case word_HyperEnd: |
840 | case word_XrefEnd: |
841 | case word_IndexRef: |
842 | return 0; |
843 | |
5b1d0032 |
844 | case word_UpperXref: |
845 | case word_LowerXref: |
846 | if (xrefs && words->private_data) { |
847 | /* "*Note " plus "::" comes to 8 characters */ |
848 | return 8 + strwid(((node *)words->private_data)->name, |
849 | cfg->charset); |
850 | } else |
851 | return 0; |
852 | } |
853 | |
854 | assert(words->type < word_internal_endattrs); |
855 | |
856 | wid = 0; |
857 | attr = towordstyle(words->type); |
858 | |
859 | if (attr == word_Emph || attr == word_Code) { |
860 | if (attraux(words->aux) == attr_Only || |
861 | attraux(words->aux) == attr_First) |
862 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
863 | cfg->charset); |
864 | } |
865 | if (attr == word_Emph || attr == word_Code) { |
866 | if (attraux(words->aux) == attr_Only || |
867 | attraux(words->aux) == attr_Last) |
868 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
869 | cfg->charset); |
870 | } |
871 | |
872 | switch (words->type) { |
5dd44dce |
873 | case word_Normal: |
874 | case word_Emph: |
875 | case word_Code: |
876 | case word_WeakCode: |
5b1d0032 |
877 | if (cvt_ok(cfg->charset, words->text) || !words->alt) |
878 | wid += ustrwid(words->text, cfg->charset); |
879 | else |
880 | wid += info_width_internal_list(words->alt, xrefs, cfg); |
881 | return wid; |
5dd44dce |
882 | |
883 | case word_WhiteSpace: |
884 | case word_EmphSpace: |
885 | case word_CodeSpace: |
886 | case word_WkCodeSpace: |
887 | case word_Quote: |
888 | case word_EmphQuote: |
889 | case word_CodeQuote: |
890 | case word_WkCodeQuote: |
891 | assert(words->type != word_CodeQuote && |
892 | words->type != word_WkCodeQuote); |
5b1d0032 |
893 | if (removeattr(words->type) == word_Quote) { |
894 | if (quoteaux(words->aux) == quote_Open) |
895 | wid += ustrwid(cfg->lquote, cfg->charset); |
896 | else |
897 | wid += ustrwid(cfg->rquote, cfg->charset); |
898 | } else |
899 | wid++; /* space */ |
5dd44dce |
900 | } |
5b1d0032 |
901 | return wid; |
5dd44dce |
902 | } |
903 | |
43341922 |
904 | static int info_width_noxrefs(void *ctx, word *words) |
5dd44dce |
905 | { |
5b1d0032 |
906 | return info_width_internal(words, FALSE, (infoconfig *)ctx); |
5dd44dce |
907 | } |
43341922 |
908 | static int info_width_xrefs(void *ctx, word *words) |
5dd44dce |
909 | { |
5b1d0032 |
910 | return info_width_internal(words, TRUE, (infoconfig *)ctx); |
5dd44dce |
911 | } |
912 | |
91f93b94 |
913 | static void info_heading(info_data *text, word *tprefix, |
5b1d0032 |
914 | word *words, int width, infoconfig *cfg) { |
91f93b94 |
915 | int length; |
5dd44dce |
916 | int firstlinewidth, wrapwidth; |
5dd44dce |
917 | wrappedline *wrapping, *p; |
918 | |
91f93b94 |
919 | length = 0; |
5dd44dce |
920 | if (tprefix) { |
5b1d0032 |
921 | length += info_rdaddwc(text, tprefix, NULL, FALSE, cfg); |
922 | length += info_rdadds(text, cfg->sectsuffix); |
5dd44dce |
923 | } |
5dd44dce |
924 | |
5dd44dce |
925 | wrapwidth = width; |
91f93b94 |
926 | firstlinewidth = width - length; |
5dd44dce |
927 | |
43341922 |
928 | wrapping = wrap_para(words, firstlinewidth, wrapwidth, |
5b1d0032 |
929 | info_width_noxrefs, cfg, 0); |
5dd44dce |
930 | for (p = wrapping; p; p = p->next) { |
5b1d0032 |
931 | length += info_rdaddwc(text, p->begin, p->end, FALSE, cfg); |
91f93b94 |
932 | info_rdadd(text, L'\n'); |
5b1d0032 |
933 | while (length > 0) { |
934 | info_rdadds(text, cfg->underline); |
935 | length -= ustrwid(cfg->underline, cfg->charset); |
936 | } |
91f93b94 |
937 | info_rdadd(text, L'\n'); |
938 | length = 0; |
5dd44dce |
939 | } |
940 | wrap_free(wrapping); |
91f93b94 |
941 | info_rdadd(text, L'\n'); |
5dd44dce |
942 | } |
943 | |
5b1d0032 |
944 | static void info_rule(info_data *text, int indent, int width, infoconfig *cfg) |
945 | { |
91f93b94 |
946 | while (indent--) info_rdadd(text, L' '); |
5b1d0032 |
947 | while (width > 0) { |
948 | info_rdadds(text, cfg->rule); |
949 | width -= ustrwid(cfg->rule, cfg->charset); |
950 | } |
91f93b94 |
951 | info_rdadd(text, L'\n'); |
952 | info_rdadd(text, L'\n'); |
5dd44dce |
953 | } |
954 | |
91f93b94 |
955 | static void info_para(info_data *text, word *prefix, wchar_t *prefixextra, |
5b1d0032 |
956 | word *input, keywordlist *keywords, int indent, |
957 | int extraindent, int width, infoconfig *cfg) { |
5dd44dce |
958 | wrappedline *wrapping, *p; |
959 | word *words; |
5dd44dce |
960 | int e; |
961 | int i; |
962 | int firstlinewidth = width; |
963 | |
964 | words = info_transform_wordlist(input, keywords); |
965 | |
966 | if (prefix) { |
5dd44dce |
967 | for (i = 0; i < indent; i++) |
91f93b94 |
968 | info_rdadd(text, L' '); |
5b1d0032 |
969 | e = info_rdaddwc(text, prefix, NULL, FALSE, cfg); |
91f93b94 |
970 | if (prefixextra) |
971 | e += info_rdadds(text, prefixextra); |
5dd44dce |
972 | /* If the prefix is too long, shorten the first line to fit. */ |
91f93b94 |
973 | e = extraindent - e; |
5dd44dce |
974 | if (e < 0) { |
975 | firstlinewidth += e; /* this decreases it, since e < 0 */ |
976 | if (firstlinewidth < 0) { |
977 | e = indent + extraindent; |
978 | firstlinewidth = width; |
91f93b94 |
979 | info_rdadd(text, L'\n'); |
5dd44dce |
980 | } else |
981 | e = 0; |
982 | } |
5dd44dce |
983 | } else |
984 | e = indent + extraindent; |
985 | |
43341922 |
986 | wrapping = wrap_para(words, firstlinewidth, width, info_width_xrefs, |
5b1d0032 |
987 | cfg, 0); |
5dd44dce |
988 | for (p = wrapping; p; p = p->next) { |
989 | for (i = 0; i < e; i++) |
91f93b94 |
990 | info_rdadd(text, L' '); |
5b1d0032 |
991 | info_rdaddwc(text, p->begin, p->end, TRUE, cfg); |
91f93b94 |
992 | info_rdadd(text, L'\n'); |
5dd44dce |
993 | e = indent + extraindent; |
994 | } |
995 | wrap_free(wrapping); |
91f93b94 |
996 | info_rdadd(text, L'\n'); |
5dd44dce |
997 | |
998 | free_word_list(words); |
999 | } |
1000 | |
91f93b94 |
1001 | static void info_codepara(info_data *text, word *words, |
5dd44dce |
1002 | int indent, int width) { |
1003 | int i; |
1004 | |
1005 | for (; words; words = words->next) if (words->type == word_WeakCode) { |
91f93b94 |
1006 | for (i = 0; i < indent; i++) |
1007 | info_rdadd(text, L' '); |
1008 | if (info_rdadds(text, words->text) > width) { |
5dd44dce |
1009 | /* FIXME: warn */ |
1010 | } |
91f93b94 |
1011 | info_rdadd(text, L'\n'); |
5dd44dce |
1012 | } |
1013 | |
91f93b94 |
1014 | info_rdadd(text, L'\n'); |
5dd44dce |
1015 | } |
1016 | |
5b1d0032 |
1017 | static void info_versionid(info_data *text, word *words, infoconfig *cfg) { |
1018 | info_rdadd(text, L'['); |
1019 | info_rdaddwc(text, words, NULL, FALSE, cfg); |
91f93b94 |
1020 | info_rdadds(text, L"]\n"); |
5dd44dce |
1021 | } |
1022 | |
91f93b94 |
1023 | static node *info_node_new(char *name, int charset) |
5dd44dce |
1024 | { |
1025 | node *n; |
1026 | |
f1530049 |
1027 | n = snew(node); |
91f93b94 |
1028 | n->text = empty_info_data; |
1029 | n->text.charset = charset; |
5dd44dce |
1030 | n->up = n->next = n->prev = n->lastchild = n->listnext = NULL; |
1031 | n->name = dupstr(name); |
1032 | n->started_menu = FALSE; |
1033 | |
1034 | return n; |
1035 | } |
1036 | |
5b1d0032 |
1037 | static char *info_node_name(paragraph *par, infoconfig *cfg) |
5dd44dce |
1038 | { |
91f93b94 |
1039 | info_data id = EMPTY_INFO_DATA; |
f4551933 |
1040 | char *p, *q; |
91f93b94 |
1041 | |
5b1d0032 |
1042 | id.charset = cfg->charset; |
1043 | info_rdaddwc(&id, par->kwtext ? par->kwtext : par->words, |
1044 | NULL, FALSE, cfg); |
91f93b94 |
1045 | info_rdaddsc(&id, NULL); |
f4551933 |
1046 | |
1047 | /* |
1048 | * We cannot have commas or colons in a node name. Remove any |
1049 | * that we find, with a warning. |
1050 | */ |
91f93b94 |
1051 | p = q = id.output.text; |
f4551933 |
1052 | while (*p) { |
1053 | if (*p == ':' || *p == ',') { |
1054 | error(err_infonodechar, &par->fpos, *p); |
1055 | } else { |
1056 | *q++ = *p; |
1057 | } |
1058 | p++; |
1059 | } |
1060 | *p = '\0'; |
1061 | |
91f93b94 |
1062 | return id.output.text; |
5dd44dce |
1063 | } |
1064 | |
5b1d0032 |
1065 | static void info_menu_item(info_data *text, node *n, paragraph *p, |
1066 | infoconfig *cfg) |
5dd44dce |
1067 | { |
1068 | /* |
1069 | * FIXME: Depending on how we're doing node names in this info |
1070 | * file, we might want to do |
1071 | * |
1072 | * * Node name:: Chapter title |
1073 | * |
1074 | * _or_ |
1075 | * |
1076 | * * Chapter number: Node name. |
1077 | * |
91f93b94 |
1078 | * This function mostly works in char rather than wchar_t, |
1079 | * because a menu item is a structural component. |
5dd44dce |
1080 | */ |
91f93b94 |
1081 | info_rdaddsc(text, "* "); |
1082 | info_rdaddsc(text, n->name); |
1083 | info_rdaddsc(text, "::"); |
5dd44dce |
1084 | if (p) { |
91f93b94 |
1085 | info_rdaddc(text, ' '); |
5b1d0032 |
1086 | info_rdaddwc(text, p->words, NULL, FALSE, cfg); |
5dd44dce |
1087 | } |
91f93b94 |
1088 | info_rdaddc(text, '\n'); |
1089 | } |
1090 | |
1091 | /* |
1092 | * These functions implement my wrapper on the rdadd* calls which |
1093 | * allows me to switch arbitrarily between literal octet-string |
1094 | * text and charset-translated Unicode. (Because no matter what |
1095 | * character set I write the actual text in, I expect info readers |
1096 | * to treat node names and file names literally and to expect |
1097 | * keywords like `*Note' in their canonical form, so I have to take |
1098 | * steps to ensure that those structural elements of the file |
1099 | * aren't messed with.) |
1100 | */ |
1101 | static int info_rdadds(info_data *d, wchar_t const *wcs) |
1102 | { |
1103 | if (!d->wcmode) { |
1104 | d->state = charset_init_state; |
1105 | d->wcmode = TRUE; |
1106 | } |
1107 | |
1108 | if (wcs) { |
1109 | char buf[256]; |
e5cd393f |
1110 | int len, width, ret; |
1111 | |
1112 | width = ustrwid(wcs, d->charset); |
91f93b94 |
1113 | |
e5cd393f |
1114 | len = ustrlen(wcs); |
91f93b94 |
1115 | while (len > 0) { |
1116 | int prevlen = len; |
1117 | |
1118 | ret = charset_from_unicode(&wcs, &len, buf, lenof(buf), |
1119 | d->charset, &d->state, NULL); |
1120 | |
1121 | assert(len < prevlen); |
1122 | |
1123 | if (ret > 0) { |
1124 | buf[ret] = '\0'; |
1125 | rdaddsc(&d->output, buf); |
1126 | } |
1127 | } |
1128 | |
e5cd393f |
1129 | return width; |
91f93b94 |
1130 | } else |
1131 | return 0; |
1132 | } |
1133 | |
1134 | static int info_rdaddsc(info_data *d, char const *cs) |
1135 | { |
1136 | if (d->wcmode) { |
1137 | char buf[256]; |
1138 | int ret; |
1139 | |
1140 | ret = charset_from_unicode(NULL, 0, buf, lenof(buf), |
1141 | d->charset, &d->state, NULL); |
1142 | if (ret > 0) { |
1143 | buf[ret] = '\0'; |
1144 | rdaddsc(&d->output, buf); |
1145 | } |
1146 | |
1147 | d->wcmode = FALSE; |
1148 | } |
1149 | |
1150 | if (cs) { |
1151 | rdaddsc(&d->output, cs); |
5b1d0032 |
1152 | return strwid(cs, d->charset); |
91f93b94 |
1153 | } else |
1154 | return 0; |
1155 | } |
1156 | |
1157 | static int info_rdadd(info_data *d, wchar_t wc) |
1158 | { |
1159 | wchar_t wcs[2]; |
1160 | wcs[0] = wc; |
1161 | wcs[1] = L'\0'; |
1162 | return info_rdadds(d, wcs); |
1163 | } |
1164 | |
1165 | static int info_rdaddc(info_data *d, char c) |
1166 | { |
1167 | char cs[2]; |
1168 | cs[0] = c; |
1169 | cs[1] = '\0'; |
1170 | return info_rdaddsc(d, cs); |
5dd44dce |
1171 | } |