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; |
f6220253 |
42 | wchar_t *index_text; |
5dd44dce |
43 | } infoconfig; |
44 | |
91f93b94 |
45 | typedef struct { |
46 | rdstringc output; |
47 | int charset; |
48 | charset_state state; |
49 | int wcmode; |
50 | } info_data; |
51 | #define EMPTY_INFO_DATA { { 0, 0, NULL }, 0, CHARSET_INIT_STATE, FALSE } |
52 | static const info_data empty_info_data = EMPTY_INFO_DATA; |
53 | |
5dd44dce |
54 | typedef struct node_tag node; |
55 | struct node_tag { |
56 | node *listnext; |
57 | node *up, *prev, *next, *lastchild; |
58 | int pos, started_menu, filenum; |
59 | char *name; |
91f93b94 |
60 | info_data text; |
5dd44dce |
61 | }; |
62 | |
63 | typedef struct { |
64 | char *text; |
91f93b94 |
65 | int length; |
5dd44dce |
66 | int nnodes, nodesize; |
67 | node **nodes; |
68 | } info_idx; |
69 | |
91f93b94 |
70 | static int info_rdadd(info_data *, wchar_t); |
71 | static int info_rdadds(info_data *, wchar_t const *); |
72 | static int info_rdaddc(info_data *, char); |
73 | static int info_rdaddsc(info_data *, char const *); |
5dd44dce |
74 | |
5b1d0032 |
75 | static void info_heading(info_data *, word *, word *, int, infoconfig *); |
76 | static void info_rule(info_data *, int, int, infoconfig *); |
91f93b94 |
77 | static void info_para(info_data *, word *, wchar_t *, word *, keywordlist *, |
5b1d0032 |
78 | int, int, int, infoconfig *); |
91f93b94 |
79 | static void info_codepara(info_data *, word *, int, int); |
5b1d0032 |
80 | static void info_versionid(info_data *, word *, infoconfig *); |
81 | static void info_menu_item(info_data *, node *, paragraph *, infoconfig *); |
5dd44dce |
82 | static word *info_transform_wordlist(word *, keywordlist *); |
83 | static int info_check_index(word *, node *, indexdata *); |
84 | |
5b1d0032 |
85 | static int info_rdaddwc(info_data *, word *, word *, int, infoconfig *); |
5dd44dce |
86 | |
91f93b94 |
87 | static node *info_node_new(char *name, int charset); |
f6220253 |
88 | static char *info_node_name_for_para(paragraph *p, infoconfig *); |
89 | static char *info_node_name_for_text(wchar_t *text, infoconfig *); |
5dd44dce |
90 | |
91 | static infoconfig info_configure(paragraph *source) { |
92 | infoconfig ret; |
5b1d0032 |
93 | paragraph *p; |
5dd44dce |
94 | |
95 | /* |
96 | * Defaults. |
97 | */ |
98 | ret.filename = dupstr("output.info"); |
99 | ret.maxfilesize = 64 << 10; |
91f93b94 |
100 | ret.charset = CS_ASCII; |
5b1d0032 |
101 | ret.width = 70; |
102 | ret.listindentbefore = 1; |
103 | ret.listindentafter = 3; |
104 | ret.indent_code = 2; |
105 | ret.index_width = 40; |
106 | ret.listsuffix = L"."; |
107 | ret.bullet = L"\x2022\0-\0\0"; |
108 | ret.rule = L"\x2500\0-\0\0"; |
109 | ret.startemph = L"_\0_\0\0"; |
110 | ret.endemph = uadv(ret.startemph); |
111 | ret.lquote = L"\x2018\0\x2019\0`\0'\0\0"; |
112 | ret.rquote = uadv(ret.lquote); |
113 | ret.sectsuffix = L": "; |
114 | ret.underline = L"\x203E\0-\0\0"; |
f6220253 |
115 | ret.index_text = L"Index"; |
5b1d0032 |
116 | |
117 | /* |
118 | * Two-pass configuration so that we can pick up global config |
119 | * (e.g. `quotes') before having it overridden by specific |
120 | * config (`info-quotes'), irrespective of the order in which |
121 | * they occur. |
122 | */ |
123 | for (p = source; p; p = p->next) { |
124 | if (p->type == para_Config) { |
125 | if (!ustricmp(p->keyword, L"quotes")) { |
126 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
127 | ret.lquote = uadv(p->keyword); |
128 | ret.rquote = uadv(ret.lquote); |
129 | } |
f6220253 |
130 | } else if (!ustricmp(p->keyword, L"index")) { |
131 | ret.index_text = uadv(p->keyword); |
5b1d0032 |
132 | } |
133 | } |
134 | } |
5dd44dce |
135 | |
5b1d0032 |
136 | for (p = source; p; p = p->next) { |
137 | if (p->type == para_Config) { |
138 | if (!ustricmp(p->keyword, L"info-filename")) { |
5dd44dce |
139 | sfree(ret.filename); |
5b1d0032 |
140 | ret.filename = dupstr(adv(p->origkeyword)); |
141 | } else if (!ustricmp(p->keyword, L"info-charset")) { |
0960a3d8 |
142 | ret.charset = charset_from_ustr(&p->fpos, uadv(p->keyword)); |
5b1d0032 |
143 | } else if (!ustricmp(p->keyword, L"info-max-file-size")) { |
144 | ret.maxfilesize = utoi(uadv(p->keyword)); |
145 | } else if (!ustricmp(p->keyword, L"info-width")) { |
146 | ret.width = utoi(uadv(p->keyword)); |
147 | } else if (!ustricmp(p->keyword, L"info-indent-code")) { |
148 | ret.indent_code = utoi(uadv(p->keyword)); |
149 | } else if (!ustricmp(p->keyword, L"info-index-width")) { |
150 | ret.index_width = utoi(uadv(p->keyword)); |
151 | } else if (!ustricmp(p->keyword, L"info-list-indent")) { |
152 | ret.listindentbefore = utoi(uadv(p->keyword)); |
153 | } else if (!ustricmp(p->keyword, L"info-listitem-indent")) { |
154 | ret.listindentafter = utoi(uadv(p->keyword)); |
155 | } else if (!ustricmp(p->keyword, L"info-section-suffix")) { |
156 | ret.sectsuffix = uadv(p->keyword); |
157 | } else if (!ustricmp(p->keyword, L"info-underline")) { |
158 | ret.underline = uadv(p->keyword); |
159 | } else if (!ustricmp(p->keyword, L"info-bullet")) { |
160 | ret.bullet = uadv(p->keyword); |
161 | } else if (!ustricmp(p->keyword, L"info-rule")) { |
162 | ret.rule = uadv(p->keyword); |
163 | } else if (!ustricmp(p->keyword, L"info-list-suffix")) { |
164 | ret.listsuffix = uadv(p->keyword); |
165 | } else if (!ustricmp(p->keyword, L"info-emphasis")) { |
166 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
167 | ret.startemph = uadv(p->keyword); |
168 | ret.endemph = uadv(ret.startemph); |
169 | } |
170 | } else if (!ustricmp(p->keyword, L"info-quotes")) { |
171 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
172 | ret.lquote = uadv(p->keyword); |
173 | ret.rquote = uadv(ret.lquote); |
174 | } |
5dd44dce |
175 | } |
176 | } |
177 | } |
178 | |
5b1d0032 |
179 | /* |
180 | * Now process fallbacks on quote characters, underlines, the |
181 | * rule character, the emphasis characters, and bullets. |
182 | */ |
183 | while (*uadv(ret.rquote) && *uadv(uadv(ret.rquote)) && |
184 | (!cvt_ok(ret.charset, ret.lquote) || |
185 | !cvt_ok(ret.charset, ret.rquote))) { |
186 | ret.lquote = uadv(ret.rquote); |
187 | ret.rquote = uadv(ret.lquote); |
188 | } |
189 | |
190 | while (*uadv(ret.endemph) && *uadv(uadv(ret.endemph)) && |
191 | (!cvt_ok(ret.charset, ret.startemph) || |
192 | !cvt_ok(ret.charset, ret.endemph))) { |
193 | ret.startemph = uadv(ret.endemph); |
194 | ret.endemph = uadv(ret.startemph); |
195 | } |
196 | |
197 | while (*ret.underline && *uadv(ret.underline) && |
198 | !cvt_ok(ret.charset, ret.underline)) |
199 | ret.underline = uadv(ret.underline); |
200 | |
201 | while (*ret.bullet && *uadv(ret.bullet) && |
202 | !cvt_ok(ret.charset, ret.bullet)) |
203 | ret.bullet = uadv(ret.bullet); |
204 | |
205 | while (*ret.rule && *uadv(ret.rule) && |
206 | !cvt_ok(ret.charset, ret.rule)) |
207 | ret.rule = uadv(ret.rule); |
208 | |
5dd44dce |
209 | return ret; |
210 | } |
211 | |
212 | paragraph *info_config_filename(char *filename) |
213 | { |
e4ea58f8 |
214 | return cmdline_cfg_simple("info-filename", filename, NULL); |
5dd44dce |
215 | } |
216 | |
217 | void info_backend(paragraph *sourceform, keywordlist *keywords, |
43341922 |
218 | indexdata *idx, void *unused) { |
5dd44dce |
219 | paragraph *p; |
220 | infoconfig conf; |
221 | word *prefix, *body, *wp; |
222 | word spaceword; |
91f93b94 |
223 | wchar_t *prefixextra; |
5dd44dce |
224 | int nesting, nestindent; |
225 | int indentb, indenta; |
226 | int filepos; |
227 | int has_index; |
91f93b94 |
228 | info_data intro_text = EMPTY_INFO_DATA; |
5dd44dce |
229 | node *topnode, *currnode; |
230 | word bullet; |
231 | FILE *fp; |
232 | |
43341922 |
233 | IGNORE(unused); |
5dd44dce |
234 | |
235 | conf = info_configure(sourceform); |
236 | |
237 | /* |
238 | * Go through and create a node for each section. |
239 | */ |
91f93b94 |
240 | topnode = info_node_new("Top", conf.charset); |
5dd44dce |
241 | currnode = topnode; |
242 | for (p = sourceform; p; p = p->next) switch (p->type) { |
243 | /* |
244 | * Chapter titles. |
245 | */ |
246 | case para_Chapter: |
247 | case para_Appendix: |
248 | case para_UnnumberedChapter: |
249 | case para_Heading: |
250 | case para_Subsect: |
251 | { |
252 | node *newnode, *upnode; |
253 | char *nodename; |
254 | |
f6220253 |
255 | nodename = info_node_name_for_para(p, &conf); |
91f93b94 |
256 | newnode = info_node_new(nodename, conf.charset); |
5dd44dce |
257 | sfree(nodename); |
258 | |
259 | p->private_data = newnode; |
260 | |
261 | if (p->parent) |
262 | upnode = (node *)p->parent->private_data; |
263 | else |
264 | upnode = topnode; |
265 | assert(upnode); |
266 | newnode->up = upnode; |
267 | |
268 | currnode->next = newnode; |
269 | newnode->prev = currnode; |
270 | |
271 | currnode->listnext = newnode; |
272 | currnode = newnode; |
273 | } |
274 | break; |
e0e55d41 |
275 | default: |
276 | p->private_data = NULL; |
277 | break; |
5dd44dce |
278 | } |
279 | |
280 | /* |
281 | * Set up the display form of each index entry. |
282 | */ |
283 | { |
284 | int i; |
285 | indexentry *entry; |
286 | |
287 | for (i = 0; (entry = index234(idx->entries, i)) != NULL; i++) { |
f1530049 |
288 | info_idx *ii = snew(info_idx); |
91f93b94 |
289 | info_data id = EMPTY_INFO_DATA; |
290 | |
291 | id.charset = conf.charset; |
5dd44dce |
292 | |
293 | ii->nnodes = ii->nodesize = 0; |
294 | ii->nodes = NULL; |
295 | |
5b1d0032 |
296 | ii->length = info_rdaddwc(&id, entry->text, NULL, FALSE, &conf); |
f4551933 |
297 | |
91f93b94 |
298 | ii->text = id.output.text; |
5dd44dce |
299 | |
300 | entry->backend_data = ii; |
301 | } |
302 | } |
303 | |
304 | /* |
305 | * An Info file begins with a piece of introductory text which |
306 | * is apparently never shown anywhere. This seems to me to be a |
d4c7e130 |
307 | * good place to put the copyright notice and the version IDs. |
308 | * Also, Info directory entries are expected to go here. |
5dd44dce |
309 | */ |
91f93b94 |
310 | intro_text.charset = conf.charset; |
5dd44dce |
311 | |
91f93b94 |
312 | info_rdaddsc(&intro_text, |
5dd44dce |
313 | "This Info file generated by Halibut, "); |
91f93b94 |
314 | info_rdaddsc(&intro_text, version); |
315 | info_rdaddsc(&intro_text, "\n\n"); |
5dd44dce |
316 | |
317 | for (p = sourceform; p; p = p->next) |
d4c7e130 |
318 | if (p->type == para_Config && |
319 | !ustricmp(p->keyword, L"info-dir-entry")) { |
320 | wchar_t *section, *shortname, *longname, *kw; |
321 | char *s; |
322 | |
323 | section = uadv(p->keyword); |
12f0ee84 |
324 | shortname = *section ? uadv(section) : L""; |
325 | longname = *shortname ? uadv(shortname) : L""; |
326 | kw = *longname ? uadv(longname) : L""; |
d4c7e130 |
327 | |
328 | if (!*longname) { |
12f0ee84 |
329 | error(err_cfginsufarg, &p->fpos, p->origkeyword, 3); |
d4c7e130 |
330 | continue; |
331 | } |
332 | |
91f93b94 |
333 | info_rdaddsc(&intro_text, "INFO-DIR-SECTION "); |
334 | info_rdadds(&intro_text, section); |
335 | info_rdaddsc(&intro_text, "\nSTART-INFO-DIR-ENTRY\n* "); |
336 | info_rdadds(&intro_text, shortname); |
337 | info_rdaddsc(&intro_text, ": ("); |
d4c7e130 |
338 | s = dupstr(conf.filename); |
339 | if (strlen(s) > 5 && !strcmp(s+strlen(s)-5, ".info")) |
340 | s[strlen(s)-5] = '\0'; |
91f93b94 |
341 | info_rdaddsc(&intro_text, s); |
d4c7e130 |
342 | sfree(s); |
91f93b94 |
343 | info_rdaddsc(&intro_text, ")"); |
d4c7e130 |
344 | if (*kw) { |
345 | keyword *kwl = kw_lookup(keywords, kw); |
346 | if (kwl && kwl->para->private_data) { |
347 | node *n = (node *)kwl->para->private_data; |
91f93b94 |
348 | info_rdaddsc(&intro_text, n->name); |
d4c7e130 |
349 | } |
350 | } |
91f93b94 |
351 | info_rdaddsc(&intro_text, ". "); |
352 | info_rdadds(&intro_text, longname); |
353 | info_rdaddsc(&intro_text, "\nEND-INFO-DIR-ENTRY\n\n"); |
d4c7e130 |
354 | } |
355 | |
356 | for (p = sourceform; p; p = p->next) |
5dd44dce |
357 | if (p->type == para_Copyright) |
358 | info_para(&intro_text, NULL, NULL, p->words, keywords, |
5b1d0032 |
359 | 0, 0, conf.width, &conf); |
5dd44dce |
360 | |
361 | for (p = sourceform; p; p = p->next) |
362 | if (p->type == para_VersionID) |
5b1d0032 |
363 | info_versionid(&intro_text, p->words, &conf); |
5dd44dce |
364 | |
91f93b94 |
365 | if (intro_text.output.text[intro_text.output.pos-1] != '\n') |
366 | info_rdaddc(&intro_text, '\n'); |
5dd44dce |
367 | |
368 | /* Do the title */ |
369 | for (p = sourceform; p; p = p->next) |
370 | if (p->type == para_Title) |
5b1d0032 |
371 | info_heading(&topnode->text, NULL, p->words, conf.width, &conf); |
5dd44dce |
372 | |
5b1d0032 |
373 | nestindent = conf.listindentbefore + conf.listindentafter; |
5dd44dce |
374 | nesting = 0; |
375 | |
376 | currnode = topnode; |
377 | |
378 | /* Do the main document */ |
379 | for (p = sourceform; p; p = p->next) switch (p->type) { |
380 | |
381 | case para_QuotePush: |
382 | nesting += 2; |
383 | break; |
384 | case para_QuotePop: |
385 | nesting -= 2; |
386 | assert(nesting >= 0); |
387 | break; |
388 | |
389 | case para_LcontPush: |
390 | nesting += nestindent; |
391 | break; |
392 | case para_LcontPop: |
393 | nesting -= nestindent; |
394 | assert(nesting >= 0); |
395 | break; |
396 | |
397 | /* |
398 | * Things we ignore because we've already processed them or |
399 | * aren't going to touch them in this pass. |
400 | */ |
401 | case para_IM: |
402 | case para_BR: |
403 | case para_Biblio: /* only touch BiblioCited */ |
404 | case para_VersionID: |
405 | case para_NoCite: |
406 | case para_Title: |
407 | break; |
408 | |
409 | /* |
410 | * Chapter titles. |
411 | */ |
412 | case para_Chapter: |
413 | case para_Appendix: |
414 | case para_UnnumberedChapter: |
415 | case para_Heading: |
416 | case para_Subsect: |
417 | currnode = p->private_data; |
418 | assert(currnode); |
419 | assert(currnode->up); |
420 | |
421 | if (!currnode->up->started_menu) { |
91f93b94 |
422 | info_rdaddsc(&currnode->up->text, "* Menu:\n\n"); |
5dd44dce |
423 | currnode->up->started_menu = TRUE; |
424 | } |
5b1d0032 |
425 | info_menu_item(&currnode->up->text, currnode, p, &conf); |
5dd44dce |
426 | |
427 | has_index |= info_check_index(p->words, currnode, idx); |
5b1d0032 |
428 | info_heading(&currnode->text, p->kwtext, p->words, conf.width, &conf); |
5dd44dce |
429 | nesting = 0; |
430 | break; |
431 | |
432 | case para_Rule: |
5b1d0032 |
433 | info_rule(&currnode->text, nesting, conf.width - nesting, &conf); |
5dd44dce |
434 | break; |
435 | |
436 | case para_Normal: |
437 | case para_Copyright: |
438 | case para_DescribedThing: |
439 | case para_Description: |
440 | case para_BiblioCited: |
441 | case para_Bullet: |
442 | case para_NumberedList: |
443 | has_index |= info_check_index(p->words, currnode, idx); |
444 | if (p->type == para_Bullet) { |
445 | bullet.next = NULL; |
446 | bullet.alt = NULL; |
447 | bullet.type = word_Normal; |
5b1d0032 |
448 | bullet.text = conf.bullet; |
5dd44dce |
449 | prefix = • |
450 | prefixextra = NULL; |
5b1d0032 |
451 | indentb = conf.listindentbefore; |
452 | indenta = conf.listindentafter; |
5dd44dce |
453 | } else if (p->type == para_NumberedList) { |
454 | prefix = p->kwtext; |
5b1d0032 |
455 | prefixextra = conf.listsuffix; |
456 | indentb = conf.listindentbefore; |
457 | indenta = conf.listindentafter; |
5dd44dce |
458 | } else if (p->type == para_Description) { |
459 | prefix = NULL; |
460 | prefixextra = NULL; |
5b1d0032 |
461 | indentb = conf.listindentbefore; |
462 | indenta = conf.listindentafter; |
5dd44dce |
463 | } else { |
464 | prefix = NULL; |
465 | prefixextra = NULL; |
466 | indentb = indenta = 0; |
467 | } |
468 | if (p->type == para_BiblioCited) { |
469 | body = dup_word_list(p->kwtext); |
470 | for (wp = body; wp->next; wp = wp->next); |
471 | wp->next = &spaceword; |
472 | spaceword.next = p->words; |
473 | spaceword.alt = NULL; |
474 | spaceword.type = word_WhiteSpace; |
475 | spaceword.text = NULL; |
476 | } else { |
477 | wp = NULL; |
478 | body = p->words; |
479 | } |
480 | info_para(&currnode->text, prefix, prefixextra, body, keywords, |
481 | nesting + indentb, indenta, |
5b1d0032 |
482 | conf.width - nesting - indentb - indenta, &conf); |
5dd44dce |
483 | if (wp) { |
484 | wp->next = NULL; |
485 | free_word_list(body); |
486 | } |
487 | break; |
488 | |
489 | case para_Code: |
490 | info_codepara(&currnode->text, p->words, |
5b1d0032 |
491 | nesting + conf.indent_code, |
492 | conf.width - nesting - 2 * conf.indent_code); |
5dd44dce |
493 | break; |
494 | } |
495 | |
496 | /* |
497 | * Create an index node if required. |
498 | */ |
499 | if (has_index) { |
500 | node *newnode; |
501 | int i, j, k; |
502 | indexentry *entry; |
f6220253 |
503 | char *nodename; |
504 | |
505 | nodename = info_node_name_for_text(conf.index_text, &conf); |
506 | newnode = info_node_new(nodename, conf.charset); |
507 | sfree(nodename); |
5dd44dce |
508 | |
5dd44dce |
509 | newnode->up = topnode; |
510 | |
511 | currnode->next = newnode; |
512 | newnode->prev = currnode; |
513 | currnode->listnext = newnode; |
514 | |
f6220253 |
515 | k = info_rdadds(&newnode->text, conf.index_text); |
516 | info_rdaddsc(&newnode->text, "\n"); |
517 | while (k > 0) { |
518 | info_rdadds(&newnode->text, conf.underline); |
519 | k -= ustrwid(conf.underline, conf.charset); |
520 | } |
521 | info_rdaddsc(&newnode->text, "\n\n"); |
5dd44dce |
522 | |
5b1d0032 |
523 | info_menu_item(&topnode->text, newnode, NULL, &conf); |
5dd44dce |
524 | |
525 | for (i = 0; (entry = index234(idx->entries, i)) != NULL; i++) { |
526 | info_idx *ii = (info_idx *)entry->backend_data; |
527 | |
528 | for (j = 0; j < ii->nnodes; j++) { |
5dd44dce |
529 | /* |
530 | * When we have multiple references for a single |
531 | * index term, we only display the actual term on |
532 | * the first line, to make it clear that the terms |
533 | * really are the same. |
534 | */ |
535 | if (j == 0) |
91f93b94 |
536 | info_rdaddsc(&newnode->text, ii->text); |
5b1d0032 |
537 | for (k = (j ? 0 : ii->length); k < conf.index_width-2; k++) |
91f93b94 |
538 | info_rdaddc(&newnode->text, ' '); |
5b1d0032 |
539 | info_rdaddsc(&newnode->text, " *Note "); |
91f93b94 |
540 | info_rdaddsc(&newnode->text, ii->nodes[j]->name); |
541 | info_rdaddsc(&newnode->text, "::\n"); |
5dd44dce |
542 | } |
543 | } |
544 | } |
545 | |
546 | /* |
547 | * Finalise the text of each node, by adding the ^_ delimiter |
548 | * and the node line at the top. |
549 | */ |
550 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
91f93b94 |
551 | char *origtext = currnode->text.output.text; |
552 | currnode->text = empty_info_data; |
553 | currnode->text.charset = conf.charset; |
554 | info_rdaddsc(&currnode->text, "\037\nFile: "); |
555 | info_rdaddsc(&currnode->text, conf.filename); |
556 | info_rdaddsc(&currnode->text, ", Node: "); |
557 | info_rdaddsc(&currnode->text, currnode->name); |
5dd44dce |
558 | if (currnode->prev) { |
91f93b94 |
559 | info_rdaddsc(&currnode->text, ", Prev: "); |
560 | info_rdaddsc(&currnode->text, currnode->prev->name); |
5dd44dce |
561 | } |
91f93b94 |
562 | info_rdaddsc(&currnode->text, ", Up: "); |
563 | info_rdaddsc(&currnode->text, (currnode->up ? |
564 | currnode->up->name : "(dir)")); |
5dd44dce |
565 | if (currnode->next) { |
91f93b94 |
566 | info_rdaddsc(&currnode->text, ", Next: "); |
567 | info_rdaddsc(&currnode->text, currnode->next->name); |
5dd44dce |
568 | } |
91f93b94 |
569 | info_rdaddsc(&currnode->text, "\n\n"); |
570 | info_rdaddsc(&currnode->text, origtext); |
5dd44dce |
571 | /* |
572 | * Just make _absolutely_ sure we end with a newline. |
573 | */ |
91f93b94 |
574 | if (currnode->text.output.text[currnode->text.output.pos-1] != '\n') |
575 | info_rdaddc(&currnode->text, '\n'); |
5dd44dce |
576 | |
577 | sfree(origtext); |
578 | } |
579 | |
580 | /* |
581 | * Compute the offsets for the tag table. |
582 | */ |
91f93b94 |
583 | filepos = intro_text.output.pos; |
5dd44dce |
584 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
585 | currnode->pos = filepos; |
91f93b94 |
586 | filepos += currnode->text.output.pos; |
5dd44dce |
587 | } |
588 | |
589 | /* |
590 | * Split into sub-files. |
591 | */ |
592 | if (conf.maxfilesize > 0) { |
91f93b94 |
593 | int currfilesize = intro_text.output.pos, currfilenum = 1; |
5dd44dce |
594 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
91f93b94 |
595 | if (currfilesize > intro_text.output.pos && |
596 | currfilesize + currnode->text.output.pos > conf.maxfilesize) { |
5dd44dce |
597 | currfilenum++; |
91f93b94 |
598 | currfilesize = intro_text.output.pos; |
5dd44dce |
599 | } |
600 | currnode->filenum = currfilenum; |
91f93b94 |
601 | currfilesize += currnode->text.output.pos; |
5dd44dce |
602 | } |
603 | } |
604 | |
605 | /* |
606 | * Write the primary output file. |
607 | */ |
608 | fp = fopen(conf.filename, "w"); |
609 | if (!fp) { |
610 | error(err_cantopenw, conf.filename); |
611 | return; |
612 | } |
91f93b94 |
613 | fputs(intro_text.output.text, fp); |
5dd44dce |
614 | if (conf.maxfilesize == 0) { |
615 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
91f93b94 |
616 | fputs(currnode->text.output.text, fp); |
5dd44dce |
617 | } else { |
618 | int filenum = 0; |
619 | fprintf(fp, "\037\nIndirect:\n"); |
620 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
621 | if (filenum != currnode->filenum) { |
622 | filenum = currnode->filenum; |
623 | fprintf(fp, "%s-%d: %d\n", conf.filename, filenum, |
624 | currnode->pos); |
625 | } |
626 | } |
627 | fprintf(fp, "\037\nTag Table:\n"); |
628 | if (conf.maxfilesize > 0) |
629 | fprintf(fp, "(Indirect)\n"); |
630 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
631 | fprintf(fp, "Node: %s\177%d\n", currnode->name, currnode->pos); |
632 | fprintf(fp, "\037\nEnd Tag Table\n"); |
633 | fclose(fp); |
634 | |
635 | /* |
636 | * Write the subfiles. |
637 | */ |
638 | if (conf.maxfilesize > 0) { |
639 | int filenum = 0; |
640 | fp = NULL; |
641 | |
642 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
643 | if (filenum != currnode->filenum) { |
644 | char *fname; |
645 | |
646 | filenum = currnode->filenum; |
647 | |
648 | if (fp) |
649 | fclose(fp); |
f1530049 |
650 | fname = snewn(strlen(conf.filename) + 40, char); |
5dd44dce |
651 | sprintf(fname, "%s-%d", conf.filename, filenum); |
652 | fp = fopen(fname, "w"); |
653 | if (!fp) { |
654 | error(err_cantopenw, fname); |
655 | return; |
656 | } |
657 | sfree(fname); |
91f93b94 |
658 | fputs(intro_text.output.text, fp); |
5dd44dce |
659 | } |
91f93b94 |
660 | fputs(currnode->text.output.text, fp); |
5dd44dce |
661 | } |
662 | |
663 | if (fp) |
664 | fclose(fp); |
665 | } |
666 | } |
667 | |
668 | static int info_check_index(word *w, node *n, indexdata *idx) |
669 | { |
670 | int ret = 0; |
671 | |
672 | for (; w; w = w->next) { |
673 | if (w->type == word_IndexRef) { |
674 | indextag *tag; |
675 | int i; |
676 | |
677 | tag = index_findtag(idx, w->text); |
678 | if (!tag) |
679 | break; |
680 | |
681 | for (i = 0; i < tag->nrefs; i++) { |
682 | indexentry *entry = tag->refs[i]; |
683 | info_idx *ii = (info_idx *)entry->backend_data; |
684 | |
685 | if (ii->nnodes > 0 && ii->nodes[ii->nnodes-1] == n) { |
686 | /* |
687 | * If the same index term is indexed twice |
688 | * within the same section, we only want to |
689 | * mention it once in the index. So do nothing |
690 | * here. |
691 | */ |
692 | continue; |
693 | } |
694 | |
695 | if (ii->nnodes >= ii->nodesize) { |
696 | ii->nodesize += 32; |
f1530049 |
697 | ii->nodes = sresize(ii->nodes, ii->nodesize, node *); |
5dd44dce |
698 | } |
699 | |
700 | ii->nodes[ii->nnodes++] = n; |
701 | |
702 | ret = 1; |
703 | } |
704 | } |
705 | } |
706 | |
707 | return ret; |
708 | } |
709 | |
5dd44dce |
710 | static word *info_transform_wordlist(word *words, keywordlist *keywords) |
711 | { |
712 | word *ret = dup_word_list(words); |
713 | word *w; |
714 | keyword *kwl; |
715 | |
716 | for (w = ret; w; w = w->next) { |
717 | w->private_data = NULL; |
718 | if (w->type == word_UpperXref || w->type == word_LowerXref) { |
719 | kwl = kw_lookup(keywords, w->text); |
720 | if (kwl) { |
721 | if (kwl->para->type == para_NumberedList || |
722 | kwl->para->type == para_BiblioCited) { |
723 | /* |
724 | * In Info, we do nothing special for xrefs to |
725 | * numbered list items or bibliography entries. |
726 | */ |
90a0531e |
727 | continue; |
5dd44dce |
728 | } else { |
729 | /* |
730 | * An xref to a different section has its text |
731 | * completely replaced. |
732 | */ |
733 | word *w2, *w3, *w4; |
734 | w2 = w3 = w->next; |
735 | w4 = NULL; |
736 | while (w2) { |
737 | if (w2->type == word_XrefEnd) { |
738 | w4 = w2->next; |
739 | w2->next = NULL; |
740 | break; |
741 | } |
742 | w2 = w2->next; |
743 | } |
744 | free_word_list(w3); |
745 | |
746 | /* |
747 | * Now w is the UpperXref / LowerXref we |
748 | * started with, and w4 is the next word after |
749 | * the corresponding XrefEnd (if any). The |
750 | * simplest thing is just to stick a pointer to |
751 | * the target node structure in the private |
752 | * data field of the xref word, and let |
753 | * info_rdaddwc and friends read the node name |
754 | * out from there. |
755 | */ |
756 | w->next = w4; |
757 | w->private_data = kwl->para->private_data; |
758 | assert(w->private_data); |
759 | } |
760 | } |
761 | } |
762 | } |
763 | |
764 | return ret; |
765 | } |
766 | |
5b1d0032 |
767 | static int info_rdaddwc(info_data *id, word *words, word *end, int xrefs, |
768 | infoconfig *cfg) { |
91f93b94 |
769 | int ret = 0; |
5dd44dce |
770 | |
771 | for (; words && words != end; words = words->next) switch (words->type) { |
772 | case word_HyperLink: |
773 | case word_HyperEnd: |
774 | case word_XrefEnd: |
775 | case word_IndexRef: |
776 | break; |
777 | |
778 | case word_Normal: |
779 | case word_Emph: |
780 | case word_Code: |
781 | case word_WeakCode: |
782 | case word_WhiteSpace: |
783 | case word_EmphSpace: |
784 | case word_CodeSpace: |
785 | case word_WkCodeSpace: |
786 | case word_Quote: |
787 | case word_EmphQuote: |
788 | case word_CodeQuote: |
789 | case word_WkCodeQuote: |
790 | assert(words->type != word_CodeQuote && |
791 | words->type != word_WkCodeQuote); |
792 | if (towordstyle(words->type) == word_Emph && |
793 | (attraux(words->aux) == attr_First || |
794 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
795 | ret += info_rdadds(id, cfg->startemph); |
5dd44dce |
796 | else if (towordstyle(words->type) == word_Code && |
797 | (attraux(words->aux) == attr_First || |
798 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
799 | ret += info_rdadds(id, cfg->lquote); |
5dd44dce |
800 | if (removeattr(words->type) == word_Normal) { |
91f93b94 |
801 | if (cvt_ok(id->charset, words->text) || !words->alt) |
802 | ret += info_rdadds(id, words->text); |
5dd44dce |
803 | else |
5b1d0032 |
804 | ret += info_rdaddwc(id, words->alt, NULL, FALSE, cfg); |
5dd44dce |
805 | } else if (removeattr(words->type) == word_WhiteSpace) { |
91f93b94 |
806 | ret += info_rdadd(id, L' '); |
5dd44dce |
807 | } else if (removeattr(words->type) == word_Quote) { |
5b1d0032 |
808 | ret += info_rdadds(id, quoteaux(words->aux) == quote_Open ? |
809 | cfg->lquote : cfg->rquote); |
5dd44dce |
810 | } |
811 | if (towordstyle(words->type) == word_Emph && |
812 | (attraux(words->aux) == attr_Last || |
813 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
814 | ret += info_rdadds(id, cfg->endemph); |
5dd44dce |
815 | else if (towordstyle(words->type) == word_Code && |
816 | (attraux(words->aux) == attr_Last || |
817 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
818 | ret += info_rdadds(id, cfg->rquote); |
5dd44dce |
819 | break; |
820 | |
821 | case word_UpperXref: |
822 | case word_LowerXref: |
823 | if (xrefs && words->private_data) { |
91f93b94 |
824 | /* |
825 | * This bit is structural and so must be done in char |
826 | * rather than wchar_t. |
827 | */ |
828 | ret += info_rdaddsc(id, "*Note "); |
829 | ret += info_rdaddsc(id, ((node *)words->private_data)->name); |
830 | ret += info_rdaddsc(id, "::"); |
5dd44dce |
831 | } |
832 | break; |
833 | } |
91f93b94 |
834 | |
835 | return ret; |
5dd44dce |
836 | } |
837 | |
5b1d0032 |
838 | static int info_width_internal(word *words, int xrefs, infoconfig *cfg); |
5dd44dce |
839 | |
5b1d0032 |
840 | static int info_width_internal_list(word *words, int xrefs, infoconfig *cfg) { |
5dd44dce |
841 | int w = 0; |
842 | while (words) { |
5b1d0032 |
843 | w += info_width_internal(words, xrefs, cfg); |
5dd44dce |
844 | words = words->next; |
845 | } |
846 | return w; |
847 | } |
848 | |
5b1d0032 |
849 | static int info_width_internal(word *words, int xrefs, infoconfig *cfg) { |
850 | int wid; |
851 | int attr; |
852 | |
5dd44dce |
853 | switch (words->type) { |
854 | case word_HyperLink: |
855 | case word_HyperEnd: |
856 | case word_XrefEnd: |
857 | case word_IndexRef: |
858 | return 0; |
859 | |
5b1d0032 |
860 | case word_UpperXref: |
861 | case word_LowerXref: |
862 | if (xrefs && words->private_data) { |
863 | /* "*Note " plus "::" comes to 8 characters */ |
864 | return 8 + strwid(((node *)words->private_data)->name, |
865 | cfg->charset); |
866 | } else |
867 | return 0; |
868 | } |
869 | |
870 | assert(words->type < word_internal_endattrs); |
871 | |
872 | wid = 0; |
873 | attr = towordstyle(words->type); |
874 | |
875 | if (attr == word_Emph || attr == word_Code) { |
876 | if (attraux(words->aux) == attr_Only || |
877 | attraux(words->aux) == attr_First) |
878 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
879 | cfg->charset); |
880 | } |
881 | if (attr == word_Emph || attr == word_Code) { |
882 | if (attraux(words->aux) == attr_Only || |
883 | attraux(words->aux) == attr_Last) |
884 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
885 | cfg->charset); |
886 | } |
887 | |
888 | switch (words->type) { |
5dd44dce |
889 | case word_Normal: |
890 | case word_Emph: |
891 | case word_Code: |
892 | case word_WeakCode: |
5b1d0032 |
893 | if (cvt_ok(cfg->charset, words->text) || !words->alt) |
894 | wid += ustrwid(words->text, cfg->charset); |
895 | else |
896 | wid += info_width_internal_list(words->alt, xrefs, cfg); |
897 | return wid; |
5dd44dce |
898 | |
899 | case word_WhiteSpace: |
900 | case word_EmphSpace: |
901 | case word_CodeSpace: |
902 | case word_WkCodeSpace: |
903 | case word_Quote: |
904 | case word_EmphQuote: |
905 | case word_CodeQuote: |
906 | case word_WkCodeQuote: |
907 | assert(words->type != word_CodeQuote && |
908 | words->type != word_WkCodeQuote); |
5b1d0032 |
909 | if (removeattr(words->type) == word_Quote) { |
910 | if (quoteaux(words->aux) == quote_Open) |
911 | wid += ustrwid(cfg->lquote, cfg->charset); |
912 | else |
913 | wid += ustrwid(cfg->rquote, cfg->charset); |
914 | } else |
915 | wid++; /* space */ |
5dd44dce |
916 | } |
5b1d0032 |
917 | return wid; |
5dd44dce |
918 | } |
919 | |
43341922 |
920 | static int info_width_noxrefs(void *ctx, word *words) |
5dd44dce |
921 | { |
5b1d0032 |
922 | return info_width_internal(words, FALSE, (infoconfig *)ctx); |
5dd44dce |
923 | } |
43341922 |
924 | static int info_width_xrefs(void *ctx, word *words) |
5dd44dce |
925 | { |
5b1d0032 |
926 | return info_width_internal(words, TRUE, (infoconfig *)ctx); |
5dd44dce |
927 | } |
928 | |
91f93b94 |
929 | static void info_heading(info_data *text, word *tprefix, |
5b1d0032 |
930 | word *words, int width, infoconfig *cfg) { |
91f93b94 |
931 | int length; |
5dd44dce |
932 | int firstlinewidth, wrapwidth; |
5dd44dce |
933 | wrappedline *wrapping, *p; |
934 | |
91f93b94 |
935 | length = 0; |
5dd44dce |
936 | if (tprefix) { |
5b1d0032 |
937 | length += info_rdaddwc(text, tprefix, NULL, FALSE, cfg); |
938 | length += info_rdadds(text, cfg->sectsuffix); |
5dd44dce |
939 | } |
5dd44dce |
940 | |
5dd44dce |
941 | wrapwidth = width; |
91f93b94 |
942 | firstlinewidth = width - length; |
5dd44dce |
943 | |
43341922 |
944 | wrapping = wrap_para(words, firstlinewidth, wrapwidth, |
5b1d0032 |
945 | info_width_noxrefs, cfg, 0); |
5dd44dce |
946 | for (p = wrapping; p; p = p->next) { |
5b1d0032 |
947 | length += info_rdaddwc(text, p->begin, p->end, FALSE, cfg); |
91f93b94 |
948 | info_rdadd(text, L'\n'); |
5b1d0032 |
949 | while (length > 0) { |
950 | info_rdadds(text, cfg->underline); |
951 | length -= ustrwid(cfg->underline, cfg->charset); |
952 | } |
91f93b94 |
953 | info_rdadd(text, L'\n'); |
954 | length = 0; |
5dd44dce |
955 | } |
956 | wrap_free(wrapping); |
91f93b94 |
957 | info_rdadd(text, L'\n'); |
5dd44dce |
958 | } |
959 | |
5b1d0032 |
960 | static void info_rule(info_data *text, int indent, int width, infoconfig *cfg) |
961 | { |
91f93b94 |
962 | while (indent--) info_rdadd(text, L' '); |
5b1d0032 |
963 | while (width > 0) { |
964 | info_rdadds(text, cfg->rule); |
965 | width -= ustrwid(cfg->rule, cfg->charset); |
966 | } |
91f93b94 |
967 | info_rdadd(text, L'\n'); |
968 | info_rdadd(text, L'\n'); |
5dd44dce |
969 | } |
970 | |
91f93b94 |
971 | static void info_para(info_data *text, word *prefix, wchar_t *prefixextra, |
5b1d0032 |
972 | word *input, keywordlist *keywords, int indent, |
973 | int extraindent, int width, infoconfig *cfg) { |
5dd44dce |
974 | wrappedline *wrapping, *p; |
975 | word *words; |
5dd44dce |
976 | int e; |
977 | int i; |
978 | int firstlinewidth = width; |
979 | |
980 | words = info_transform_wordlist(input, keywords); |
981 | |
982 | if (prefix) { |
5dd44dce |
983 | for (i = 0; i < indent; i++) |
91f93b94 |
984 | info_rdadd(text, L' '); |
5b1d0032 |
985 | e = info_rdaddwc(text, prefix, NULL, FALSE, cfg); |
91f93b94 |
986 | if (prefixextra) |
987 | e += info_rdadds(text, prefixextra); |
5dd44dce |
988 | /* If the prefix is too long, shorten the first line to fit. */ |
91f93b94 |
989 | e = extraindent - e; |
5dd44dce |
990 | if (e < 0) { |
991 | firstlinewidth += e; /* this decreases it, since e < 0 */ |
992 | if (firstlinewidth < 0) { |
993 | e = indent + extraindent; |
994 | firstlinewidth = width; |
91f93b94 |
995 | info_rdadd(text, L'\n'); |
5dd44dce |
996 | } else |
997 | e = 0; |
998 | } |
5dd44dce |
999 | } else |
1000 | e = indent + extraindent; |
1001 | |
43341922 |
1002 | wrapping = wrap_para(words, firstlinewidth, width, info_width_xrefs, |
5b1d0032 |
1003 | cfg, 0); |
5dd44dce |
1004 | for (p = wrapping; p; p = p->next) { |
1005 | for (i = 0; i < e; i++) |
91f93b94 |
1006 | info_rdadd(text, L' '); |
5b1d0032 |
1007 | info_rdaddwc(text, p->begin, p->end, TRUE, cfg); |
91f93b94 |
1008 | info_rdadd(text, L'\n'); |
5dd44dce |
1009 | e = indent + extraindent; |
1010 | } |
1011 | wrap_free(wrapping); |
91f93b94 |
1012 | info_rdadd(text, L'\n'); |
5dd44dce |
1013 | |
1014 | free_word_list(words); |
1015 | } |
1016 | |
91f93b94 |
1017 | static void info_codepara(info_data *text, word *words, |
5dd44dce |
1018 | int indent, int width) { |
1019 | int i; |
1020 | |
1021 | for (; words; words = words->next) if (words->type == word_WeakCode) { |
91f93b94 |
1022 | for (i = 0; i < indent; i++) |
1023 | info_rdadd(text, L' '); |
1024 | if (info_rdadds(text, words->text) > width) { |
5dd44dce |
1025 | /* FIXME: warn */ |
1026 | } |
91f93b94 |
1027 | info_rdadd(text, L'\n'); |
5dd44dce |
1028 | } |
1029 | |
91f93b94 |
1030 | info_rdadd(text, L'\n'); |
5dd44dce |
1031 | } |
1032 | |
5b1d0032 |
1033 | static void info_versionid(info_data *text, word *words, infoconfig *cfg) { |
1034 | info_rdadd(text, L'['); |
1035 | info_rdaddwc(text, words, NULL, FALSE, cfg); |
91f93b94 |
1036 | info_rdadds(text, L"]\n"); |
5dd44dce |
1037 | } |
1038 | |
91f93b94 |
1039 | static node *info_node_new(char *name, int charset) |
5dd44dce |
1040 | { |
1041 | node *n; |
1042 | |
f1530049 |
1043 | n = snew(node); |
91f93b94 |
1044 | n->text = empty_info_data; |
1045 | n->text.charset = charset; |
5dd44dce |
1046 | n->up = n->next = n->prev = n->lastchild = n->listnext = NULL; |
1047 | n->name = dupstr(name); |
1048 | n->started_menu = FALSE; |
1049 | |
1050 | return n; |
1051 | } |
1052 | |
f6220253 |
1053 | static char *info_node_name_core(info_data *id, filepos *fpos) |
5dd44dce |
1054 | { |
f4551933 |
1055 | char *p, *q; |
91f93b94 |
1056 | |
f4551933 |
1057 | /* |
f6220253 |
1058 | * We cannot have commas, colons or parentheses in a node name. |
1059 | * Remove any that we find, with a warning. |
f4551933 |
1060 | */ |
f6220253 |
1061 | p = q = id->output.text; |
f4551933 |
1062 | while (*p) { |
f6220253 |
1063 | if (*p == ':' || *p == ',' || *p == '(' || *p == ')') { |
1064 | error(err_infonodechar, fpos, *p); |
f4551933 |
1065 | } else { |
1066 | *q++ = *p; |
1067 | } |
1068 | p++; |
1069 | } |
f6220253 |
1070 | *q = '\0'; |
1071 | |
1072 | return id->output.text; |
1073 | } |
1074 | |
1075 | static char *info_node_name_for_para(paragraph *par, infoconfig *cfg) |
1076 | { |
1077 | info_data id = EMPTY_INFO_DATA; |
1078 | |
1079 | id.charset = cfg->charset; |
1080 | info_rdaddwc(&id, par->kwtext ? par->kwtext : par->words, |
1081 | NULL, FALSE, cfg); |
1082 | info_rdaddsc(&id, NULL); |
1083 | |
1084 | return info_node_name_core(&id, &par->fpos); |
1085 | } |
1086 | |
1087 | static char *info_node_name_for_text(wchar_t *text, infoconfig *cfg) |
1088 | { |
1089 | info_data id = EMPTY_INFO_DATA; |
1090 | |
1091 | id.charset = cfg->charset; |
1092 | info_rdadds(&id, text); |
1093 | info_rdaddsc(&id, NULL); |
f4551933 |
1094 | |
f6220253 |
1095 | return info_node_name_core(&id, NULL); |
5dd44dce |
1096 | } |
1097 | |
5b1d0032 |
1098 | static void info_menu_item(info_data *text, node *n, paragraph *p, |
1099 | infoconfig *cfg) |
5dd44dce |
1100 | { |
1101 | /* |
1102 | * FIXME: Depending on how we're doing node names in this info |
1103 | * file, we might want to do |
1104 | * |
1105 | * * Node name:: Chapter title |
1106 | * |
1107 | * _or_ |
1108 | * |
1109 | * * Chapter number: Node name. |
1110 | * |
91f93b94 |
1111 | * This function mostly works in char rather than wchar_t, |
1112 | * because a menu item is a structural component. |
5dd44dce |
1113 | */ |
91f93b94 |
1114 | info_rdaddsc(text, "* "); |
1115 | info_rdaddsc(text, n->name); |
1116 | info_rdaddsc(text, "::"); |
5dd44dce |
1117 | if (p) { |
91f93b94 |
1118 | info_rdaddc(text, ' '); |
5b1d0032 |
1119 | info_rdaddwc(text, p->words, NULL, FALSE, cfg); |
5dd44dce |
1120 | } |
91f93b94 |
1121 | info_rdaddc(text, '\n'); |
1122 | } |
1123 | |
1124 | /* |
1125 | * These functions implement my wrapper on the rdadd* calls which |
1126 | * allows me to switch arbitrarily between literal octet-string |
1127 | * text and charset-translated Unicode. (Because no matter what |
1128 | * character set I write the actual text in, I expect info readers |
1129 | * to treat node names and file names literally and to expect |
1130 | * keywords like `*Note' in their canonical form, so I have to take |
1131 | * steps to ensure that those structural elements of the file |
1132 | * aren't messed with.) |
1133 | */ |
1134 | static int info_rdadds(info_data *d, wchar_t const *wcs) |
1135 | { |
1136 | if (!d->wcmode) { |
1137 | d->state = charset_init_state; |
1138 | d->wcmode = TRUE; |
1139 | } |
1140 | |
1141 | if (wcs) { |
1142 | char buf[256]; |
e5cd393f |
1143 | int len, width, ret; |
1144 | |
1145 | width = ustrwid(wcs, d->charset); |
91f93b94 |
1146 | |
e5cd393f |
1147 | len = ustrlen(wcs); |
91f93b94 |
1148 | while (len > 0) { |
1149 | int prevlen = len; |
1150 | |
1151 | ret = charset_from_unicode(&wcs, &len, buf, lenof(buf), |
1152 | d->charset, &d->state, NULL); |
1153 | |
1154 | assert(len < prevlen); |
1155 | |
1156 | if (ret > 0) { |
1157 | buf[ret] = '\0'; |
1158 | rdaddsc(&d->output, buf); |
1159 | } |
1160 | } |
1161 | |
e5cd393f |
1162 | return width; |
91f93b94 |
1163 | } else |
1164 | return 0; |
1165 | } |
1166 | |
1167 | static int info_rdaddsc(info_data *d, char const *cs) |
1168 | { |
1169 | if (d->wcmode) { |
1170 | char buf[256]; |
1171 | int ret; |
1172 | |
1173 | ret = charset_from_unicode(NULL, 0, buf, lenof(buf), |
1174 | d->charset, &d->state, NULL); |
1175 | if (ret > 0) { |
1176 | buf[ret] = '\0'; |
1177 | rdaddsc(&d->output, buf); |
1178 | } |
1179 | |
1180 | d->wcmode = FALSE; |
1181 | } |
1182 | |
1183 | if (cs) { |
1184 | rdaddsc(&d->output, cs); |
5b1d0032 |
1185 | return strwid(cs, d->charset); |
91f93b94 |
1186 | } else |
1187 | return 0; |
1188 | } |
1189 | |
1190 | static int info_rdadd(info_data *d, wchar_t wc) |
1191 | { |
1192 | wchar_t wcs[2]; |
1193 | wcs[0] = wc; |
1194 | wcs[1] = L'\0'; |
1195 | return info_rdadds(d, wcs); |
1196 | } |
1197 | |
1198 | static int info_rdaddc(info_data *d, char c) |
1199 | { |
1200 | char cs[2]; |
1201 | cs[0] = c; |
1202 | cs[1] = '\0'; |
1203 | return info_rdaddsc(d, cs); |
5dd44dce |
1204 | } |