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! |
c2d30a0d |
24 | * |
25 | * - more flexibility in heading underlines, like text backend. |
26 | * + Given info.el's fontifier, we'd want the following defaults: |
27 | * \cfg{info-title-underline}{*} |
28 | * \cfg{info-chapter-underline}{=} |
29 | * \cfg{info-section-underline}{0}{-} |
30 | * \cfg{info-section-underline}{1}{.} |
31 | * |
32 | * - Indices generated by makeinfo use a menu rather than a bunch of |
33 | * cross-references, which reduces visual clutter rather. For |
34 | * singly-referenced items, it looks like: |
35 | * * toner cartridge, replacing: Toner. |
36 | * It does a horrid job on multiply-referenced entries, though, |
37 | * perhaps because the name before the colon is meant to be unique. |
22e33bba |
38 | * Info's 'i' command requires the use of a menu -- it fails to |
39 | * find any index entries at all with Halibut's current index format. |
c2d30a0d |
40 | * |
41 | * - The string "*note" is matched case-insensitively, so we could |
42 | * make things slightly less ugly by using the lower-case version |
43 | * when the user asks for \k. Unfortunately, standalone Info seems |
44 | * to match node names case-sensitively, so we can't downcase that. |
5dd44dce |
45 | */ |
46 | |
47 | #include <stdio.h> |
48 | #include <stdlib.h> |
49 | #include <assert.h> |
50 | #include "halibut.h" |
51 | |
52 | typedef struct { |
53 | char *filename; |
54 | int maxfilesize; |
91f93b94 |
55 | int charset; |
5b1d0032 |
56 | int listindentbefore, listindentafter; |
57 | int indent_code, width, index_width; |
58 | wchar_t *bullet, *listsuffix; |
59 | wchar_t *startemph, *endemph; |
60 | wchar_t *lquote, *rquote; |
61 | wchar_t *sectsuffix, *underline; |
62 | wchar_t *rule; |
f6220253 |
63 | wchar_t *index_text; |
5dd44dce |
64 | } infoconfig; |
65 | |
91f93b94 |
66 | typedef struct { |
67 | rdstringc output; |
68 | int charset; |
69 | charset_state state; |
70 | int wcmode; |
71 | } info_data; |
72 | #define EMPTY_INFO_DATA { { 0, 0, NULL }, 0, CHARSET_INIT_STATE, FALSE } |
73 | static const info_data empty_info_data = EMPTY_INFO_DATA; |
74 | |
5dd44dce |
75 | typedef struct node_tag node; |
76 | struct node_tag { |
77 | node *listnext; |
78 | node *up, *prev, *next, *lastchild; |
79 | int pos, started_menu, filenum; |
80 | char *name; |
91f93b94 |
81 | info_data text; |
5dd44dce |
82 | }; |
83 | |
84 | typedef struct { |
85 | char *text; |
91f93b94 |
86 | int length; |
5dd44dce |
87 | int nnodes, nodesize; |
88 | node **nodes; |
89 | } info_idx; |
90 | |
91f93b94 |
91 | static int info_rdadd(info_data *, wchar_t); |
92 | static int info_rdadds(info_data *, wchar_t const *); |
93 | static int info_rdaddc(info_data *, char); |
94 | static int info_rdaddsc(info_data *, char const *); |
5dd44dce |
95 | |
5b1d0032 |
96 | static void info_heading(info_data *, word *, word *, int, infoconfig *); |
97 | static void info_rule(info_data *, int, int, infoconfig *); |
91f93b94 |
98 | static void info_para(info_data *, word *, wchar_t *, word *, keywordlist *, |
5b1d0032 |
99 | int, int, int, infoconfig *); |
91f93b94 |
100 | static void info_codepara(info_data *, word *, int, int); |
5b1d0032 |
101 | static void info_versionid(info_data *, word *, infoconfig *); |
102 | static void info_menu_item(info_data *, node *, paragraph *, infoconfig *); |
5dd44dce |
103 | static word *info_transform_wordlist(word *, keywordlist *); |
104 | static int info_check_index(word *, node *, indexdata *); |
105 | |
5b1d0032 |
106 | static int info_rdaddwc(info_data *, word *, word *, int, infoconfig *); |
5dd44dce |
107 | |
91f93b94 |
108 | static node *info_node_new(char *name, int charset); |
f6220253 |
109 | static char *info_node_name_for_para(paragraph *p, infoconfig *); |
110 | static char *info_node_name_for_text(wchar_t *text, infoconfig *); |
5dd44dce |
111 | |
112 | static infoconfig info_configure(paragraph *source) { |
113 | infoconfig ret; |
5b1d0032 |
114 | paragraph *p; |
5dd44dce |
115 | |
116 | /* |
117 | * Defaults. |
118 | */ |
119 | ret.filename = dupstr("output.info"); |
120 | ret.maxfilesize = 64 << 10; |
91f93b94 |
121 | ret.charset = CS_ASCII; |
5b1d0032 |
122 | ret.width = 70; |
123 | ret.listindentbefore = 1; |
124 | ret.listindentafter = 3; |
125 | ret.indent_code = 2; |
126 | ret.index_width = 40; |
127 | ret.listsuffix = L"."; |
128 | ret.bullet = L"\x2022\0-\0\0"; |
129 | ret.rule = L"\x2500\0-\0\0"; |
130 | ret.startemph = L"_\0_\0\0"; |
131 | ret.endemph = uadv(ret.startemph); |
132 | ret.lquote = L"\x2018\0\x2019\0`\0'\0\0"; |
133 | ret.rquote = uadv(ret.lquote); |
134 | ret.sectsuffix = L": "; |
135 | ret.underline = L"\x203E\0-\0\0"; |
f6220253 |
136 | ret.index_text = L"Index"; |
5b1d0032 |
137 | |
138 | /* |
139 | * Two-pass configuration so that we can pick up global config |
140 | * (e.g. `quotes') before having it overridden by specific |
141 | * config (`info-quotes'), irrespective of the order in which |
142 | * they occur. |
143 | */ |
144 | for (p = source; p; p = p->next) { |
145 | if (p->type == para_Config) { |
146 | if (!ustricmp(p->keyword, L"quotes")) { |
147 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
148 | ret.lquote = uadv(p->keyword); |
149 | ret.rquote = uadv(ret.lquote); |
150 | } |
f6220253 |
151 | } else if (!ustricmp(p->keyword, L"index")) { |
152 | ret.index_text = uadv(p->keyword); |
5b1d0032 |
153 | } |
154 | } |
155 | } |
5dd44dce |
156 | |
5b1d0032 |
157 | for (p = source; p; p = p->next) { |
158 | if (p->type == para_Config) { |
159 | if (!ustricmp(p->keyword, L"info-filename")) { |
5dd44dce |
160 | sfree(ret.filename); |
5b1d0032 |
161 | ret.filename = dupstr(adv(p->origkeyword)); |
162 | } else if (!ustricmp(p->keyword, L"info-charset")) { |
0960a3d8 |
163 | ret.charset = charset_from_ustr(&p->fpos, uadv(p->keyword)); |
5b1d0032 |
164 | } else if (!ustricmp(p->keyword, L"info-max-file-size")) { |
165 | ret.maxfilesize = utoi(uadv(p->keyword)); |
166 | } else if (!ustricmp(p->keyword, L"info-width")) { |
167 | ret.width = utoi(uadv(p->keyword)); |
168 | } else if (!ustricmp(p->keyword, L"info-indent-code")) { |
169 | ret.indent_code = utoi(uadv(p->keyword)); |
170 | } else if (!ustricmp(p->keyword, L"info-index-width")) { |
171 | ret.index_width = utoi(uadv(p->keyword)); |
172 | } else if (!ustricmp(p->keyword, L"info-list-indent")) { |
173 | ret.listindentbefore = utoi(uadv(p->keyword)); |
174 | } else if (!ustricmp(p->keyword, L"info-listitem-indent")) { |
175 | ret.listindentafter = utoi(uadv(p->keyword)); |
176 | } else if (!ustricmp(p->keyword, L"info-section-suffix")) { |
177 | ret.sectsuffix = uadv(p->keyword); |
178 | } else if (!ustricmp(p->keyword, L"info-underline")) { |
179 | ret.underline = uadv(p->keyword); |
180 | } else if (!ustricmp(p->keyword, L"info-bullet")) { |
181 | ret.bullet = uadv(p->keyword); |
182 | } else if (!ustricmp(p->keyword, L"info-rule")) { |
183 | ret.rule = uadv(p->keyword); |
184 | } else if (!ustricmp(p->keyword, L"info-list-suffix")) { |
185 | ret.listsuffix = uadv(p->keyword); |
186 | } else if (!ustricmp(p->keyword, L"info-emphasis")) { |
187 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
188 | ret.startemph = uadv(p->keyword); |
189 | ret.endemph = uadv(ret.startemph); |
190 | } |
191 | } else if (!ustricmp(p->keyword, L"info-quotes")) { |
192 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
193 | ret.lquote = uadv(p->keyword); |
194 | ret.rquote = uadv(ret.lquote); |
195 | } |
5dd44dce |
196 | } |
197 | } |
198 | } |
199 | |
5b1d0032 |
200 | /* |
201 | * Now process fallbacks on quote characters, underlines, the |
202 | * rule character, the emphasis characters, and bullets. |
203 | */ |
204 | while (*uadv(ret.rquote) && *uadv(uadv(ret.rquote)) && |
205 | (!cvt_ok(ret.charset, ret.lquote) || |
206 | !cvt_ok(ret.charset, ret.rquote))) { |
207 | ret.lquote = uadv(ret.rquote); |
208 | ret.rquote = uadv(ret.lquote); |
209 | } |
210 | |
211 | while (*uadv(ret.endemph) && *uadv(uadv(ret.endemph)) && |
212 | (!cvt_ok(ret.charset, ret.startemph) || |
213 | !cvt_ok(ret.charset, ret.endemph))) { |
214 | ret.startemph = uadv(ret.endemph); |
215 | ret.endemph = uadv(ret.startemph); |
216 | } |
217 | |
218 | while (*ret.underline && *uadv(ret.underline) && |
219 | !cvt_ok(ret.charset, ret.underline)) |
220 | ret.underline = uadv(ret.underline); |
221 | |
222 | while (*ret.bullet && *uadv(ret.bullet) && |
223 | !cvt_ok(ret.charset, ret.bullet)) |
224 | ret.bullet = uadv(ret.bullet); |
225 | |
226 | while (*ret.rule && *uadv(ret.rule) && |
227 | !cvt_ok(ret.charset, ret.rule)) |
228 | ret.rule = uadv(ret.rule); |
229 | |
5dd44dce |
230 | return ret; |
231 | } |
232 | |
233 | paragraph *info_config_filename(char *filename) |
234 | { |
e4ea58f8 |
235 | return cmdline_cfg_simple("info-filename", filename, NULL); |
5dd44dce |
236 | } |
237 | |
238 | void info_backend(paragraph *sourceform, keywordlist *keywords, |
43341922 |
239 | indexdata *idx, void *unused) { |
5dd44dce |
240 | paragraph *p; |
241 | infoconfig conf; |
242 | word *prefix, *body, *wp; |
243 | word spaceword; |
91f93b94 |
244 | wchar_t *prefixextra; |
5dd44dce |
245 | int nesting, nestindent; |
246 | int indentb, indenta; |
247 | int filepos; |
248 | int has_index; |
91f93b94 |
249 | info_data intro_text = EMPTY_INFO_DATA; |
5dd44dce |
250 | node *topnode, *currnode; |
251 | word bullet; |
252 | FILE *fp; |
253 | |
43341922 |
254 | IGNORE(unused); |
5dd44dce |
255 | |
256 | conf = info_configure(sourceform); |
257 | |
258 | /* |
259 | * Go through and create a node for each section. |
260 | */ |
91f93b94 |
261 | topnode = info_node_new("Top", conf.charset); |
5dd44dce |
262 | currnode = topnode; |
263 | for (p = sourceform; p; p = p->next) switch (p->type) { |
264 | /* |
265 | * Chapter titles. |
266 | */ |
267 | case para_Chapter: |
268 | case para_Appendix: |
269 | case para_UnnumberedChapter: |
270 | case para_Heading: |
271 | case para_Subsect: |
272 | { |
273 | node *newnode, *upnode; |
274 | char *nodename; |
275 | |
f6220253 |
276 | nodename = info_node_name_for_para(p, &conf); |
91f93b94 |
277 | newnode = info_node_new(nodename, conf.charset); |
5dd44dce |
278 | sfree(nodename); |
279 | |
280 | p->private_data = newnode; |
281 | |
282 | if (p->parent) |
283 | upnode = (node *)p->parent->private_data; |
284 | else |
285 | upnode = topnode; |
286 | assert(upnode); |
287 | newnode->up = upnode; |
288 | |
289 | currnode->next = newnode; |
290 | newnode->prev = currnode; |
291 | |
292 | currnode->listnext = newnode; |
293 | currnode = newnode; |
294 | } |
295 | break; |
e0e55d41 |
296 | default: |
297 | p->private_data = NULL; |
298 | break; |
5dd44dce |
299 | } |
300 | |
301 | /* |
302 | * Set up the display form of each index entry. |
303 | */ |
304 | { |
305 | int i; |
306 | indexentry *entry; |
307 | |
308 | for (i = 0; (entry = index234(idx->entries, i)) != NULL; i++) { |
f1530049 |
309 | info_idx *ii = snew(info_idx); |
91f93b94 |
310 | info_data id = EMPTY_INFO_DATA; |
311 | |
312 | id.charset = conf.charset; |
5dd44dce |
313 | |
314 | ii->nnodes = ii->nodesize = 0; |
315 | ii->nodes = NULL; |
316 | |
5b1d0032 |
317 | ii->length = info_rdaddwc(&id, entry->text, NULL, FALSE, &conf); |
f4551933 |
318 | |
91f93b94 |
319 | ii->text = id.output.text; |
5dd44dce |
320 | |
321 | entry->backend_data = ii; |
322 | } |
323 | } |
324 | |
325 | /* |
326 | * An Info file begins with a piece of introductory text which |
327 | * is apparently never shown anywhere. This seems to me to be a |
d4c7e130 |
328 | * good place to put the copyright notice and the version IDs. |
329 | * Also, Info directory entries are expected to go here. |
5dd44dce |
330 | */ |
91f93b94 |
331 | intro_text.charset = conf.charset; |
5dd44dce |
332 | |
91f93b94 |
333 | info_rdaddsc(&intro_text, |
5dd44dce |
334 | "This Info file generated by Halibut, "); |
91f93b94 |
335 | info_rdaddsc(&intro_text, version); |
336 | info_rdaddsc(&intro_text, "\n\n"); |
5dd44dce |
337 | |
338 | for (p = sourceform; p; p = p->next) |
d4c7e130 |
339 | if (p->type == para_Config && |
340 | !ustricmp(p->keyword, L"info-dir-entry")) { |
341 | wchar_t *section, *shortname, *longname, *kw; |
342 | char *s; |
343 | |
344 | section = uadv(p->keyword); |
12f0ee84 |
345 | shortname = *section ? uadv(section) : L""; |
346 | longname = *shortname ? uadv(shortname) : L""; |
347 | kw = *longname ? uadv(longname) : L""; |
d4c7e130 |
348 | |
349 | if (!*longname) { |
12f0ee84 |
350 | error(err_cfginsufarg, &p->fpos, p->origkeyword, 3); |
d4c7e130 |
351 | continue; |
352 | } |
353 | |
91f93b94 |
354 | info_rdaddsc(&intro_text, "INFO-DIR-SECTION "); |
355 | info_rdadds(&intro_text, section); |
356 | info_rdaddsc(&intro_text, "\nSTART-INFO-DIR-ENTRY\n* "); |
357 | info_rdadds(&intro_text, shortname); |
358 | info_rdaddsc(&intro_text, ": ("); |
d4c7e130 |
359 | s = dupstr(conf.filename); |
360 | if (strlen(s) > 5 && !strcmp(s+strlen(s)-5, ".info")) |
361 | s[strlen(s)-5] = '\0'; |
91f93b94 |
362 | info_rdaddsc(&intro_text, s); |
d4c7e130 |
363 | sfree(s); |
91f93b94 |
364 | info_rdaddsc(&intro_text, ")"); |
d4c7e130 |
365 | if (*kw) { |
366 | keyword *kwl = kw_lookup(keywords, kw); |
367 | if (kwl && kwl->para->private_data) { |
368 | node *n = (node *)kwl->para->private_data; |
91f93b94 |
369 | info_rdaddsc(&intro_text, n->name); |
d4c7e130 |
370 | } |
371 | } |
91f93b94 |
372 | info_rdaddsc(&intro_text, ". "); |
373 | info_rdadds(&intro_text, longname); |
374 | info_rdaddsc(&intro_text, "\nEND-INFO-DIR-ENTRY\n\n"); |
d4c7e130 |
375 | } |
376 | |
377 | for (p = sourceform; p; p = p->next) |
5dd44dce |
378 | if (p->type == para_Copyright) |
379 | info_para(&intro_text, NULL, NULL, p->words, keywords, |
5b1d0032 |
380 | 0, 0, conf.width, &conf); |
5dd44dce |
381 | |
382 | for (p = sourceform; p; p = p->next) |
383 | if (p->type == para_VersionID) |
5b1d0032 |
384 | info_versionid(&intro_text, p->words, &conf); |
5dd44dce |
385 | |
91f93b94 |
386 | if (intro_text.output.text[intro_text.output.pos-1] != '\n') |
387 | info_rdaddc(&intro_text, '\n'); |
5dd44dce |
388 | |
389 | /* Do the title */ |
390 | for (p = sourceform; p; p = p->next) |
391 | if (p->type == para_Title) |
5b1d0032 |
392 | info_heading(&topnode->text, NULL, p->words, conf.width, &conf); |
5dd44dce |
393 | |
5b1d0032 |
394 | nestindent = conf.listindentbefore + conf.listindentafter; |
5dd44dce |
395 | nesting = 0; |
396 | |
397 | currnode = topnode; |
398 | |
399 | /* Do the main document */ |
400 | for (p = sourceform; p; p = p->next) switch (p->type) { |
401 | |
402 | case para_QuotePush: |
403 | nesting += 2; |
404 | break; |
405 | case para_QuotePop: |
406 | nesting -= 2; |
407 | assert(nesting >= 0); |
408 | break; |
409 | |
410 | case para_LcontPush: |
411 | nesting += nestindent; |
412 | break; |
413 | case para_LcontPop: |
414 | nesting -= nestindent; |
415 | assert(nesting >= 0); |
416 | break; |
417 | |
418 | /* |
419 | * Things we ignore because we've already processed them or |
420 | * aren't going to touch them in this pass. |
421 | */ |
422 | case para_IM: |
423 | case para_BR: |
424 | case para_Biblio: /* only touch BiblioCited */ |
425 | case para_VersionID: |
426 | case para_NoCite: |
427 | case para_Title: |
428 | break; |
429 | |
430 | /* |
431 | * Chapter titles. |
432 | */ |
433 | case para_Chapter: |
434 | case para_Appendix: |
435 | case para_UnnumberedChapter: |
436 | case para_Heading: |
437 | case para_Subsect: |
438 | currnode = p->private_data; |
439 | assert(currnode); |
440 | assert(currnode->up); |
441 | |
442 | if (!currnode->up->started_menu) { |
91f93b94 |
443 | info_rdaddsc(&currnode->up->text, "* Menu:\n\n"); |
5dd44dce |
444 | currnode->up->started_menu = TRUE; |
445 | } |
5b1d0032 |
446 | info_menu_item(&currnode->up->text, currnode, p, &conf); |
5dd44dce |
447 | |
448 | has_index |= info_check_index(p->words, currnode, idx); |
5b1d0032 |
449 | info_heading(&currnode->text, p->kwtext, p->words, conf.width, &conf); |
5dd44dce |
450 | nesting = 0; |
451 | break; |
452 | |
453 | case para_Rule: |
5b1d0032 |
454 | info_rule(&currnode->text, nesting, conf.width - nesting, &conf); |
5dd44dce |
455 | break; |
456 | |
457 | case para_Normal: |
458 | case para_Copyright: |
459 | case para_DescribedThing: |
460 | case para_Description: |
461 | case para_BiblioCited: |
462 | case para_Bullet: |
463 | case para_NumberedList: |
464 | has_index |= info_check_index(p->words, currnode, idx); |
465 | if (p->type == para_Bullet) { |
466 | bullet.next = NULL; |
467 | bullet.alt = NULL; |
468 | bullet.type = word_Normal; |
5b1d0032 |
469 | bullet.text = conf.bullet; |
5dd44dce |
470 | prefix = • |
471 | prefixextra = NULL; |
5b1d0032 |
472 | indentb = conf.listindentbefore; |
473 | indenta = conf.listindentafter; |
5dd44dce |
474 | } else if (p->type == para_NumberedList) { |
475 | prefix = p->kwtext; |
5b1d0032 |
476 | prefixextra = conf.listsuffix; |
477 | indentb = conf.listindentbefore; |
478 | indenta = conf.listindentafter; |
5dd44dce |
479 | } else if (p->type == para_Description) { |
480 | prefix = NULL; |
481 | prefixextra = NULL; |
5b1d0032 |
482 | indentb = conf.listindentbefore; |
483 | indenta = conf.listindentafter; |
5dd44dce |
484 | } else { |
485 | prefix = NULL; |
486 | prefixextra = NULL; |
487 | indentb = indenta = 0; |
488 | } |
489 | if (p->type == para_BiblioCited) { |
490 | body = dup_word_list(p->kwtext); |
491 | for (wp = body; wp->next; wp = wp->next); |
492 | wp->next = &spaceword; |
493 | spaceword.next = p->words; |
494 | spaceword.alt = NULL; |
495 | spaceword.type = word_WhiteSpace; |
496 | spaceword.text = NULL; |
497 | } else { |
498 | wp = NULL; |
499 | body = p->words; |
500 | } |
501 | info_para(&currnode->text, prefix, prefixextra, body, keywords, |
502 | nesting + indentb, indenta, |
5b1d0032 |
503 | conf.width - nesting - indentb - indenta, &conf); |
5dd44dce |
504 | if (wp) { |
505 | wp->next = NULL; |
506 | free_word_list(body); |
507 | } |
508 | break; |
509 | |
510 | case para_Code: |
511 | info_codepara(&currnode->text, p->words, |
5b1d0032 |
512 | nesting + conf.indent_code, |
513 | conf.width - nesting - 2 * conf.indent_code); |
5dd44dce |
514 | break; |
515 | } |
516 | |
517 | /* |
518 | * Create an index node if required. |
519 | */ |
520 | if (has_index) { |
521 | node *newnode; |
522 | int i, j, k; |
523 | indexentry *entry; |
f6220253 |
524 | char *nodename; |
525 | |
526 | nodename = info_node_name_for_text(conf.index_text, &conf); |
527 | newnode = info_node_new(nodename, conf.charset); |
528 | sfree(nodename); |
5dd44dce |
529 | |
5dd44dce |
530 | newnode->up = topnode; |
531 | |
532 | currnode->next = newnode; |
533 | newnode->prev = currnode; |
534 | currnode->listnext = newnode; |
535 | |
f6220253 |
536 | k = info_rdadds(&newnode->text, conf.index_text); |
537 | info_rdaddsc(&newnode->text, "\n"); |
538 | while (k > 0) { |
539 | info_rdadds(&newnode->text, conf.underline); |
540 | k -= ustrwid(conf.underline, conf.charset); |
541 | } |
542 | info_rdaddsc(&newnode->text, "\n\n"); |
5dd44dce |
543 | |
5b1d0032 |
544 | info_menu_item(&topnode->text, newnode, NULL, &conf); |
5dd44dce |
545 | |
546 | for (i = 0; (entry = index234(idx->entries, i)) != NULL; i++) { |
547 | info_idx *ii = (info_idx *)entry->backend_data; |
548 | |
549 | for (j = 0; j < ii->nnodes; j++) { |
5dd44dce |
550 | /* |
551 | * When we have multiple references for a single |
552 | * index term, we only display the actual term on |
553 | * the first line, to make it clear that the terms |
554 | * really are the same. |
555 | */ |
556 | if (j == 0) |
91f93b94 |
557 | info_rdaddsc(&newnode->text, ii->text); |
5b1d0032 |
558 | for (k = (j ? 0 : ii->length); k < conf.index_width-2; k++) |
91f93b94 |
559 | info_rdaddc(&newnode->text, ' '); |
5b1d0032 |
560 | info_rdaddsc(&newnode->text, " *Note "); |
91f93b94 |
561 | info_rdaddsc(&newnode->text, ii->nodes[j]->name); |
562 | info_rdaddsc(&newnode->text, "::\n"); |
5dd44dce |
563 | } |
564 | } |
565 | } |
566 | |
567 | /* |
568 | * Finalise the text of each node, by adding the ^_ delimiter |
569 | * and the node line at the top. |
570 | */ |
571 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
91f93b94 |
572 | char *origtext = currnode->text.output.text; |
573 | currnode->text = empty_info_data; |
574 | currnode->text.charset = conf.charset; |
575 | info_rdaddsc(&currnode->text, "\037\nFile: "); |
576 | info_rdaddsc(&currnode->text, conf.filename); |
577 | info_rdaddsc(&currnode->text, ", Node: "); |
578 | info_rdaddsc(&currnode->text, currnode->name); |
5dd44dce |
579 | if (currnode->prev) { |
91f93b94 |
580 | info_rdaddsc(&currnode->text, ", Prev: "); |
581 | info_rdaddsc(&currnode->text, currnode->prev->name); |
5dd44dce |
582 | } |
91f93b94 |
583 | info_rdaddsc(&currnode->text, ", Up: "); |
584 | info_rdaddsc(&currnode->text, (currnode->up ? |
585 | currnode->up->name : "(dir)")); |
5dd44dce |
586 | if (currnode->next) { |
91f93b94 |
587 | info_rdaddsc(&currnode->text, ", Next: "); |
588 | info_rdaddsc(&currnode->text, currnode->next->name); |
5dd44dce |
589 | } |
91f93b94 |
590 | info_rdaddsc(&currnode->text, "\n\n"); |
591 | info_rdaddsc(&currnode->text, origtext); |
5dd44dce |
592 | /* |
593 | * Just make _absolutely_ sure we end with a newline. |
594 | */ |
91f93b94 |
595 | if (currnode->text.output.text[currnode->text.output.pos-1] != '\n') |
596 | info_rdaddc(&currnode->text, '\n'); |
5dd44dce |
597 | |
598 | sfree(origtext); |
599 | } |
600 | |
601 | /* |
602 | * Compute the offsets for the tag table. |
603 | */ |
91f93b94 |
604 | filepos = intro_text.output.pos; |
5dd44dce |
605 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
606 | currnode->pos = filepos; |
91f93b94 |
607 | filepos += currnode->text.output.pos; |
5dd44dce |
608 | } |
609 | |
610 | /* |
611 | * Split into sub-files. |
612 | */ |
613 | if (conf.maxfilesize > 0) { |
91f93b94 |
614 | int currfilesize = intro_text.output.pos, currfilenum = 1; |
5dd44dce |
615 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
91f93b94 |
616 | if (currfilesize > intro_text.output.pos && |
617 | currfilesize + currnode->text.output.pos > conf.maxfilesize) { |
5dd44dce |
618 | currfilenum++; |
91f93b94 |
619 | currfilesize = intro_text.output.pos; |
5dd44dce |
620 | } |
621 | currnode->filenum = currfilenum; |
91f93b94 |
622 | currfilesize += currnode->text.output.pos; |
5dd44dce |
623 | } |
624 | } |
625 | |
626 | /* |
627 | * Write the primary output file. |
628 | */ |
629 | fp = fopen(conf.filename, "w"); |
630 | if (!fp) { |
631 | error(err_cantopenw, conf.filename); |
632 | return; |
633 | } |
91f93b94 |
634 | fputs(intro_text.output.text, fp); |
5dd44dce |
635 | if (conf.maxfilesize == 0) { |
636 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
91f93b94 |
637 | fputs(currnode->text.output.text, fp); |
5dd44dce |
638 | } else { |
639 | int filenum = 0; |
640 | fprintf(fp, "\037\nIndirect:\n"); |
641 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
642 | if (filenum != currnode->filenum) { |
643 | filenum = currnode->filenum; |
644 | fprintf(fp, "%s-%d: %d\n", conf.filename, filenum, |
645 | currnode->pos); |
646 | } |
647 | } |
648 | fprintf(fp, "\037\nTag Table:\n"); |
649 | if (conf.maxfilesize > 0) |
650 | fprintf(fp, "(Indirect)\n"); |
651 | for (currnode = topnode; currnode; currnode = currnode->listnext) |
652 | fprintf(fp, "Node: %s\177%d\n", currnode->name, currnode->pos); |
653 | fprintf(fp, "\037\nEnd Tag Table\n"); |
654 | fclose(fp); |
655 | |
656 | /* |
657 | * Write the subfiles. |
658 | */ |
659 | if (conf.maxfilesize > 0) { |
660 | int filenum = 0; |
661 | fp = NULL; |
662 | |
663 | for (currnode = topnode; currnode; currnode = currnode->listnext) { |
664 | if (filenum != currnode->filenum) { |
665 | char *fname; |
666 | |
667 | filenum = currnode->filenum; |
668 | |
669 | if (fp) |
670 | fclose(fp); |
f1530049 |
671 | fname = snewn(strlen(conf.filename) + 40, char); |
5dd44dce |
672 | sprintf(fname, "%s-%d", conf.filename, filenum); |
673 | fp = fopen(fname, "w"); |
674 | if (!fp) { |
675 | error(err_cantopenw, fname); |
676 | return; |
677 | } |
678 | sfree(fname); |
91f93b94 |
679 | fputs(intro_text.output.text, fp); |
5dd44dce |
680 | } |
91f93b94 |
681 | fputs(currnode->text.output.text, fp); |
5dd44dce |
682 | } |
683 | |
684 | if (fp) |
685 | fclose(fp); |
686 | } |
687 | } |
688 | |
689 | static int info_check_index(word *w, node *n, indexdata *idx) |
690 | { |
691 | int ret = 0; |
692 | |
693 | for (; w; w = w->next) { |
694 | if (w->type == word_IndexRef) { |
695 | indextag *tag; |
696 | int i; |
697 | |
698 | tag = index_findtag(idx, w->text); |
699 | if (!tag) |
700 | break; |
701 | |
702 | for (i = 0; i < tag->nrefs; i++) { |
703 | indexentry *entry = tag->refs[i]; |
704 | info_idx *ii = (info_idx *)entry->backend_data; |
705 | |
706 | if (ii->nnodes > 0 && ii->nodes[ii->nnodes-1] == n) { |
707 | /* |
708 | * If the same index term is indexed twice |
709 | * within the same section, we only want to |
710 | * mention it once in the index. So do nothing |
711 | * here. |
712 | */ |
713 | continue; |
714 | } |
715 | |
716 | if (ii->nnodes >= ii->nodesize) { |
717 | ii->nodesize += 32; |
f1530049 |
718 | ii->nodes = sresize(ii->nodes, ii->nodesize, node *); |
5dd44dce |
719 | } |
720 | |
721 | ii->nodes[ii->nnodes++] = n; |
722 | |
723 | ret = 1; |
724 | } |
725 | } |
726 | } |
727 | |
728 | return ret; |
729 | } |
730 | |
5dd44dce |
731 | static word *info_transform_wordlist(word *words, keywordlist *keywords) |
732 | { |
733 | word *ret = dup_word_list(words); |
734 | word *w; |
735 | keyword *kwl; |
736 | |
737 | for (w = ret; w; w = w->next) { |
738 | w->private_data = NULL; |
739 | if (w->type == word_UpperXref || w->type == word_LowerXref) { |
740 | kwl = kw_lookup(keywords, w->text); |
741 | if (kwl) { |
742 | if (kwl->para->type == para_NumberedList || |
743 | kwl->para->type == para_BiblioCited) { |
744 | /* |
745 | * In Info, we do nothing special for xrefs to |
746 | * numbered list items or bibliography entries. |
747 | */ |
90a0531e |
748 | continue; |
5dd44dce |
749 | } else { |
750 | /* |
751 | * An xref to a different section has its text |
752 | * completely replaced. |
753 | */ |
754 | word *w2, *w3, *w4; |
755 | w2 = w3 = w->next; |
756 | w4 = NULL; |
757 | while (w2) { |
758 | if (w2->type == word_XrefEnd) { |
759 | w4 = w2->next; |
760 | w2->next = NULL; |
761 | break; |
762 | } |
763 | w2 = w2->next; |
764 | } |
765 | free_word_list(w3); |
766 | |
767 | /* |
768 | * Now w is the UpperXref / LowerXref we |
769 | * started with, and w4 is the next word after |
770 | * the corresponding XrefEnd (if any). The |
771 | * simplest thing is just to stick a pointer to |
772 | * the target node structure in the private |
773 | * data field of the xref word, and let |
774 | * info_rdaddwc and friends read the node name |
775 | * out from there. |
776 | */ |
777 | w->next = w4; |
778 | w->private_data = kwl->para->private_data; |
779 | assert(w->private_data); |
780 | } |
781 | } |
782 | } |
783 | } |
784 | |
785 | return ret; |
786 | } |
787 | |
5b1d0032 |
788 | static int info_rdaddwc(info_data *id, word *words, word *end, int xrefs, |
789 | infoconfig *cfg) { |
91f93b94 |
790 | int ret = 0; |
5dd44dce |
791 | |
792 | for (; words && words != end; words = words->next) switch (words->type) { |
793 | case word_HyperLink: |
794 | case word_HyperEnd: |
795 | case word_XrefEnd: |
796 | case word_IndexRef: |
797 | break; |
798 | |
799 | case word_Normal: |
800 | case word_Emph: |
801 | case word_Code: |
802 | case word_WeakCode: |
803 | case word_WhiteSpace: |
804 | case word_EmphSpace: |
805 | case word_CodeSpace: |
806 | case word_WkCodeSpace: |
807 | case word_Quote: |
808 | case word_EmphQuote: |
809 | case word_CodeQuote: |
810 | case word_WkCodeQuote: |
811 | assert(words->type != word_CodeQuote && |
812 | words->type != word_WkCodeQuote); |
813 | if (towordstyle(words->type) == word_Emph && |
814 | (attraux(words->aux) == attr_First || |
815 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
816 | ret += info_rdadds(id, cfg->startemph); |
5dd44dce |
817 | else if (towordstyle(words->type) == word_Code && |
818 | (attraux(words->aux) == attr_First || |
819 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
820 | ret += info_rdadds(id, cfg->lquote); |
5dd44dce |
821 | if (removeattr(words->type) == word_Normal) { |
91f93b94 |
822 | if (cvt_ok(id->charset, words->text) || !words->alt) |
823 | ret += info_rdadds(id, words->text); |
5dd44dce |
824 | else |
5b1d0032 |
825 | ret += info_rdaddwc(id, words->alt, NULL, FALSE, cfg); |
5dd44dce |
826 | } else if (removeattr(words->type) == word_WhiteSpace) { |
91f93b94 |
827 | ret += info_rdadd(id, L' '); |
5dd44dce |
828 | } else if (removeattr(words->type) == word_Quote) { |
5b1d0032 |
829 | ret += info_rdadds(id, quoteaux(words->aux) == quote_Open ? |
830 | cfg->lquote : cfg->rquote); |
5dd44dce |
831 | } |
832 | if (towordstyle(words->type) == word_Emph && |
833 | (attraux(words->aux) == attr_Last || |
834 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
835 | ret += info_rdadds(id, cfg->endemph); |
5dd44dce |
836 | else if (towordstyle(words->type) == word_Code && |
837 | (attraux(words->aux) == attr_Last || |
838 | attraux(words->aux) == attr_Only)) |
5b1d0032 |
839 | ret += info_rdadds(id, cfg->rquote); |
5dd44dce |
840 | break; |
841 | |
842 | case word_UpperXref: |
843 | case word_LowerXref: |
844 | if (xrefs && words->private_data) { |
91f93b94 |
845 | /* |
846 | * This bit is structural and so must be done in char |
847 | * rather than wchar_t. |
848 | */ |
849 | ret += info_rdaddsc(id, "*Note "); |
850 | ret += info_rdaddsc(id, ((node *)words->private_data)->name); |
851 | ret += info_rdaddsc(id, "::"); |
5dd44dce |
852 | } |
853 | break; |
854 | } |
91f93b94 |
855 | |
856 | return ret; |
5dd44dce |
857 | } |
858 | |
5b1d0032 |
859 | static int info_width_internal(word *words, int xrefs, infoconfig *cfg); |
5dd44dce |
860 | |
5b1d0032 |
861 | static int info_width_internal_list(word *words, int xrefs, infoconfig *cfg) { |
5dd44dce |
862 | int w = 0; |
863 | while (words) { |
5b1d0032 |
864 | w += info_width_internal(words, xrefs, cfg); |
5dd44dce |
865 | words = words->next; |
866 | } |
867 | return w; |
868 | } |
869 | |
5b1d0032 |
870 | static int info_width_internal(word *words, int xrefs, infoconfig *cfg) { |
871 | int wid; |
872 | int attr; |
873 | |
5dd44dce |
874 | switch (words->type) { |
875 | case word_HyperLink: |
876 | case word_HyperEnd: |
877 | case word_XrefEnd: |
878 | case word_IndexRef: |
879 | return 0; |
880 | |
5b1d0032 |
881 | case word_UpperXref: |
882 | case word_LowerXref: |
883 | if (xrefs && words->private_data) { |
884 | /* "*Note " plus "::" comes to 8 characters */ |
885 | return 8 + strwid(((node *)words->private_data)->name, |
886 | cfg->charset); |
887 | } else |
888 | return 0; |
889 | } |
890 | |
891 | assert(words->type < word_internal_endattrs); |
892 | |
893 | wid = 0; |
894 | attr = towordstyle(words->type); |
895 | |
896 | if (attr == word_Emph || attr == word_Code) { |
897 | if (attraux(words->aux) == attr_Only || |
898 | attraux(words->aux) == attr_First) |
899 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
900 | cfg->charset); |
901 | } |
902 | if (attr == word_Emph || attr == word_Code) { |
903 | if (attraux(words->aux) == attr_Only || |
904 | attraux(words->aux) == attr_Last) |
905 | wid += ustrwid(attr == word_Emph ? cfg->startemph : cfg->lquote, |
906 | cfg->charset); |
907 | } |
908 | |
909 | switch (words->type) { |
5dd44dce |
910 | case word_Normal: |
911 | case word_Emph: |
912 | case word_Code: |
913 | case word_WeakCode: |
5b1d0032 |
914 | if (cvt_ok(cfg->charset, words->text) || !words->alt) |
915 | wid += ustrwid(words->text, cfg->charset); |
916 | else |
917 | wid += info_width_internal_list(words->alt, xrefs, cfg); |
918 | return wid; |
5dd44dce |
919 | |
920 | case word_WhiteSpace: |
921 | case word_EmphSpace: |
922 | case word_CodeSpace: |
923 | case word_WkCodeSpace: |
924 | case word_Quote: |
925 | case word_EmphQuote: |
926 | case word_CodeQuote: |
927 | case word_WkCodeQuote: |
928 | assert(words->type != word_CodeQuote && |
929 | words->type != word_WkCodeQuote); |
5b1d0032 |
930 | if (removeattr(words->type) == word_Quote) { |
931 | if (quoteaux(words->aux) == quote_Open) |
932 | wid += ustrwid(cfg->lquote, cfg->charset); |
933 | else |
934 | wid += ustrwid(cfg->rquote, cfg->charset); |
935 | } else |
936 | wid++; /* space */ |
5dd44dce |
937 | } |
5b1d0032 |
938 | return wid; |
5dd44dce |
939 | } |
940 | |
43341922 |
941 | static int info_width_noxrefs(void *ctx, word *words) |
5dd44dce |
942 | { |
5b1d0032 |
943 | return info_width_internal(words, FALSE, (infoconfig *)ctx); |
5dd44dce |
944 | } |
43341922 |
945 | static int info_width_xrefs(void *ctx, word *words) |
5dd44dce |
946 | { |
5b1d0032 |
947 | return info_width_internal(words, TRUE, (infoconfig *)ctx); |
5dd44dce |
948 | } |
949 | |
91f93b94 |
950 | static void info_heading(info_data *text, word *tprefix, |
5b1d0032 |
951 | word *words, int width, infoconfig *cfg) { |
91f93b94 |
952 | int length; |
5dd44dce |
953 | int firstlinewidth, wrapwidth; |
5dd44dce |
954 | wrappedline *wrapping, *p; |
955 | |
91f93b94 |
956 | length = 0; |
5dd44dce |
957 | if (tprefix) { |
5b1d0032 |
958 | length += info_rdaddwc(text, tprefix, NULL, FALSE, cfg); |
959 | length += info_rdadds(text, cfg->sectsuffix); |
5dd44dce |
960 | } |
5dd44dce |
961 | |
5dd44dce |
962 | wrapwidth = width; |
91f93b94 |
963 | firstlinewidth = width - length; |
5dd44dce |
964 | |
43341922 |
965 | wrapping = wrap_para(words, firstlinewidth, wrapwidth, |
5b1d0032 |
966 | info_width_noxrefs, cfg, 0); |
5dd44dce |
967 | for (p = wrapping; p; p = p->next) { |
5b1d0032 |
968 | length += info_rdaddwc(text, p->begin, p->end, FALSE, cfg); |
91f93b94 |
969 | info_rdadd(text, L'\n'); |
5b1d0032 |
970 | while (length > 0) { |
971 | info_rdadds(text, cfg->underline); |
972 | length -= ustrwid(cfg->underline, cfg->charset); |
973 | } |
91f93b94 |
974 | info_rdadd(text, L'\n'); |
975 | length = 0; |
5dd44dce |
976 | } |
977 | wrap_free(wrapping); |
91f93b94 |
978 | info_rdadd(text, L'\n'); |
5dd44dce |
979 | } |
980 | |
5b1d0032 |
981 | static void info_rule(info_data *text, int indent, int width, infoconfig *cfg) |
982 | { |
91f93b94 |
983 | while (indent--) info_rdadd(text, L' '); |
5b1d0032 |
984 | while (width > 0) { |
985 | info_rdadds(text, cfg->rule); |
986 | width -= ustrwid(cfg->rule, cfg->charset); |
987 | } |
91f93b94 |
988 | info_rdadd(text, L'\n'); |
989 | info_rdadd(text, L'\n'); |
5dd44dce |
990 | } |
991 | |
91f93b94 |
992 | static void info_para(info_data *text, word *prefix, wchar_t *prefixextra, |
5b1d0032 |
993 | word *input, keywordlist *keywords, int indent, |
994 | int extraindent, int width, infoconfig *cfg) { |
5dd44dce |
995 | wrappedline *wrapping, *p; |
996 | word *words; |
5dd44dce |
997 | int e; |
998 | int i; |
999 | int firstlinewidth = width; |
1000 | |
1001 | words = info_transform_wordlist(input, keywords); |
1002 | |
1003 | if (prefix) { |
5dd44dce |
1004 | for (i = 0; i < indent; i++) |
91f93b94 |
1005 | info_rdadd(text, L' '); |
5b1d0032 |
1006 | e = info_rdaddwc(text, prefix, NULL, FALSE, cfg); |
91f93b94 |
1007 | if (prefixextra) |
1008 | e += info_rdadds(text, prefixextra); |
5dd44dce |
1009 | /* If the prefix is too long, shorten the first line to fit. */ |
91f93b94 |
1010 | e = extraindent - e; |
5dd44dce |
1011 | if (e < 0) { |
1012 | firstlinewidth += e; /* this decreases it, since e < 0 */ |
1013 | if (firstlinewidth < 0) { |
1014 | e = indent + extraindent; |
1015 | firstlinewidth = width; |
91f93b94 |
1016 | info_rdadd(text, L'\n'); |
5dd44dce |
1017 | } else |
1018 | e = 0; |
1019 | } |
5dd44dce |
1020 | } else |
1021 | e = indent + extraindent; |
1022 | |
43341922 |
1023 | wrapping = wrap_para(words, firstlinewidth, width, info_width_xrefs, |
5b1d0032 |
1024 | cfg, 0); |
5dd44dce |
1025 | for (p = wrapping; p; p = p->next) { |
1026 | for (i = 0; i < e; i++) |
91f93b94 |
1027 | info_rdadd(text, L' '); |
5b1d0032 |
1028 | info_rdaddwc(text, p->begin, p->end, TRUE, cfg); |
91f93b94 |
1029 | info_rdadd(text, L'\n'); |
5dd44dce |
1030 | e = indent + extraindent; |
1031 | } |
1032 | wrap_free(wrapping); |
91f93b94 |
1033 | info_rdadd(text, L'\n'); |
5dd44dce |
1034 | |
1035 | free_word_list(words); |
1036 | } |
1037 | |
91f93b94 |
1038 | static void info_codepara(info_data *text, word *words, |
5dd44dce |
1039 | int indent, int width) { |
1040 | int i; |
1041 | |
1042 | for (; words; words = words->next) if (words->type == word_WeakCode) { |
91f93b94 |
1043 | for (i = 0; i < indent; i++) |
1044 | info_rdadd(text, L' '); |
1045 | if (info_rdadds(text, words->text) > width) { |
5dd44dce |
1046 | /* FIXME: warn */ |
1047 | } |
91f93b94 |
1048 | info_rdadd(text, L'\n'); |
5dd44dce |
1049 | } |
1050 | |
91f93b94 |
1051 | info_rdadd(text, L'\n'); |
5dd44dce |
1052 | } |
1053 | |
5b1d0032 |
1054 | static void info_versionid(info_data *text, word *words, infoconfig *cfg) { |
1055 | info_rdadd(text, L'['); |
1056 | info_rdaddwc(text, words, NULL, FALSE, cfg); |
91f93b94 |
1057 | info_rdadds(text, L"]\n"); |
5dd44dce |
1058 | } |
1059 | |
91f93b94 |
1060 | static node *info_node_new(char *name, int charset) |
5dd44dce |
1061 | { |
1062 | node *n; |
1063 | |
f1530049 |
1064 | n = snew(node); |
91f93b94 |
1065 | n->text = empty_info_data; |
1066 | n->text.charset = charset; |
5dd44dce |
1067 | n->up = n->next = n->prev = n->lastchild = n->listnext = NULL; |
1068 | n->name = dupstr(name); |
1069 | n->started_menu = FALSE; |
1070 | |
1071 | return n; |
1072 | } |
1073 | |
f6220253 |
1074 | static char *info_node_name_core(info_data *id, filepos *fpos) |
5dd44dce |
1075 | { |
f4551933 |
1076 | char *p, *q; |
91f93b94 |
1077 | |
f4551933 |
1078 | /* |
f6220253 |
1079 | * We cannot have commas, colons or parentheses in a node name. |
1080 | * Remove any that we find, with a warning. |
f4551933 |
1081 | */ |
f6220253 |
1082 | p = q = id->output.text; |
f4551933 |
1083 | while (*p) { |
f6220253 |
1084 | if (*p == ':' || *p == ',' || *p == '(' || *p == ')') { |
1085 | error(err_infonodechar, fpos, *p); |
f4551933 |
1086 | } else { |
1087 | *q++ = *p; |
1088 | } |
1089 | p++; |
1090 | } |
f6220253 |
1091 | *q = '\0'; |
1092 | |
1093 | return id->output.text; |
1094 | } |
1095 | |
1096 | static char *info_node_name_for_para(paragraph *par, infoconfig *cfg) |
1097 | { |
1098 | info_data id = EMPTY_INFO_DATA; |
1099 | |
1100 | id.charset = cfg->charset; |
1101 | info_rdaddwc(&id, par->kwtext ? par->kwtext : par->words, |
1102 | NULL, FALSE, cfg); |
1103 | info_rdaddsc(&id, NULL); |
1104 | |
1105 | return info_node_name_core(&id, &par->fpos); |
1106 | } |
1107 | |
1108 | static char *info_node_name_for_text(wchar_t *text, infoconfig *cfg) |
1109 | { |
1110 | info_data id = EMPTY_INFO_DATA; |
1111 | |
1112 | id.charset = cfg->charset; |
1113 | info_rdadds(&id, text); |
1114 | info_rdaddsc(&id, NULL); |
f4551933 |
1115 | |
f6220253 |
1116 | return info_node_name_core(&id, NULL); |
5dd44dce |
1117 | } |
1118 | |
5b1d0032 |
1119 | static void info_menu_item(info_data *text, node *n, paragraph *p, |
1120 | infoconfig *cfg) |
5dd44dce |
1121 | { |
1122 | /* |
1123 | * FIXME: Depending on how we're doing node names in this info |
1124 | * file, we might want to do |
1125 | * |
1126 | * * Node name:: Chapter title |
1127 | * |
1128 | * _or_ |
1129 | * |
1130 | * * Chapter number: Node name. |
1131 | * |
91f93b94 |
1132 | * This function mostly works in char rather than wchar_t, |
1133 | * because a menu item is a structural component. |
5dd44dce |
1134 | */ |
91f93b94 |
1135 | info_rdaddsc(text, "* "); |
1136 | info_rdaddsc(text, n->name); |
1137 | info_rdaddsc(text, "::"); |
5dd44dce |
1138 | if (p) { |
91f93b94 |
1139 | info_rdaddc(text, ' '); |
5b1d0032 |
1140 | info_rdaddwc(text, p->words, NULL, FALSE, cfg); |
5dd44dce |
1141 | } |
91f93b94 |
1142 | info_rdaddc(text, '\n'); |
1143 | } |
1144 | |
1145 | /* |
1146 | * These functions implement my wrapper on the rdadd* calls which |
1147 | * allows me to switch arbitrarily between literal octet-string |
1148 | * text and charset-translated Unicode. (Because no matter what |
1149 | * character set I write the actual text in, I expect info readers |
1150 | * to treat node names and file names literally and to expect |
1151 | * keywords like `*Note' in their canonical form, so I have to take |
1152 | * steps to ensure that those structural elements of the file |
1153 | * aren't messed with.) |
1154 | */ |
1155 | static int info_rdadds(info_data *d, wchar_t const *wcs) |
1156 | { |
1157 | if (!d->wcmode) { |
1158 | d->state = charset_init_state; |
1159 | d->wcmode = TRUE; |
1160 | } |
1161 | |
1162 | if (wcs) { |
1163 | char buf[256]; |
e5cd393f |
1164 | int len, width, ret; |
1165 | |
1166 | width = ustrwid(wcs, d->charset); |
91f93b94 |
1167 | |
e5cd393f |
1168 | len = ustrlen(wcs); |
91f93b94 |
1169 | while (len > 0) { |
1170 | int prevlen = len; |
1171 | |
1172 | ret = charset_from_unicode(&wcs, &len, buf, lenof(buf), |
1173 | d->charset, &d->state, NULL); |
1174 | |
1175 | assert(len < prevlen); |
1176 | |
1177 | if (ret > 0) { |
1178 | buf[ret] = '\0'; |
1179 | rdaddsc(&d->output, buf); |
1180 | } |
1181 | } |
1182 | |
e5cd393f |
1183 | return width; |
91f93b94 |
1184 | } else |
1185 | return 0; |
1186 | } |
1187 | |
1188 | static int info_rdaddsc(info_data *d, char const *cs) |
1189 | { |
1190 | if (d->wcmode) { |
1191 | char buf[256]; |
1192 | int ret; |
1193 | |
1194 | ret = charset_from_unicode(NULL, 0, buf, lenof(buf), |
1195 | d->charset, &d->state, NULL); |
1196 | if (ret > 0) { |
1197 | buf[ret] = '\0'; |
1198 | rdaddsc(&d->output, buf); |
1199 | } |
1200 | |
1201 | d->wcmode = FALSE; |
1202 | } |
1203 | |
1204 | if (cs) { |
1205 | rdaddsc(&d->output, cs); |
5b1d0032 |
1206 | return strwid(cs, d->charset); |
91f93b94 |
1207 | } else |
1208 | return 0; |
1209 | } |
1210 | |
1211 | static int info_rdadd(info_data *d, wchar_t wc) |
1212 | { |
1213 | wchar_t wcs[2]; |
1214 | wcs[0] = wc; |
1215 | wcs[1] = L'\0'; |
1216 | return info_rdadds(d, wcs); |
1217 | } |
1218 | |
1219 | static int info_rdaddc(info_data *d, char c) |
1220 | { |
1221 | char cs[2]; |
1222 | cs[0] = c; |
1223 | cs[1] = '\0'; |
1224 | return info_rdaddsc(d, cs); |
5dd44dce |
1225 | } |