d7482997 |
1 | /* |
2 | * Windows Help backend for Halibut |
d7482997 |
3 | */ |
4 | |
5 | #include <stdio.h> |
6 | #include <stdlib.h> |
50d6b4bd |
7 | #include <ctype.h> |
d7482997 |
8 | #include <assert.h> |
9 | |
10 | #include "halibut.h" |
11 | #include "winhelp.h" |
12 | |
13 | struct bk_whlp_state { |
14 | WHLP h; |
15 | indexdata *idx; |
16 | keywordlist *keywords; |
17 | WHLP_TOPIC curr_topic; |
18 | FILE *cntfp; |
19 | int cnt_last_level, cnt_workaround; |
20 | }; |
21 | |
22 | /* |
23 | * Indexes of fonts in our standard font descriptor set. |
24 | */ |
25 | enum { |
26 | FONT_NORMAL, |
27 | FONT_EMPH, |
28 | FONT_CODE, |
4b3c5afb |
29 | FONT_ITAL_CODE, |
30 | FONT_BOLD_CODE, |
d7482997 |
31 | FONT_TITLE, |
32 | FONT_TITLE_EMPH, |
33 | FONT_TITLE_CODE, |
34 | FONT_RULE |
35 | }; |
36 | |
37 | static void whlp_rdaddwc(rdstringc *rs, word *text); |
4b3c5afb |
38 | static int whlp_convert(wchar_t *s, int maxlen, |
39 | char **result, int hard_spaces); |
d7482997 |
40 | static void whlp_mkparagraph(struct bk_whlp_state *state, |
41 | int font, word *text, int subsidiary); |
42 | static void whlp_navmenu(struct bk_whlp_state *state, paragraph *p); |
43 | static void whlp_contents_write(struct bk_whlp_state *state, |
44 | int level, char *text, WHLP_TOPIC topic); |
45 | |
ba9c1487 |
46 | paragraph *whlp_config_filename(char *filename) |
47 | { |
e4ea58f8 |
48 | return cmdline_cfg_simple("winhelp-filename", filename, NULL); |
ba9c1487 |
49 | } |
50 | |
d7482997 |
51 | void whlp_backend(paragraph *sourceform, keywordlist *keywords, |
43341922 |
52 | indexdata *idx, void *unused) { |
d7482997 |
53 | WHLP h; |
54 | char *filename, *cntname; |
55 | paragraph *p, *lastsect; |
56 | struct bk_whlp_state state; |
57 | WHLP_TOPIC contents_topic; |
58 | int i; |
7136a6c7 |
59 | int nesting; |
d7482997 |
60 | indexentry *ie; |
de967e1b |
61 | int done_contents_topic = FALSE; |
d7482997 |
62 | |
43341922 |
63 | IGNORE(unused); |
64 | |
d7482997 |
65 | h = state.h = whlp_new(); |
66 | state.keywords = keywords; |
67 | state.idx = idx; |
68 | |
69 | whlp_start_macro(h, "CB(\"btn_about\",\"&About\",\"About()\")"); |
70 | whlp_start_macro(h, "CB(\"btn_up\",\"&Up\",\"Contents()\")"); |
71 | whlp_start_macro(h, "BrowseButtons()"); |
72 | |
73 | whlp_create_font(h, "Times New Roman", WHLP_FONTFAM_SERIF, 24, |
74 | 0, 0, 0, 0); |
75 | whlp_create_font(h, "Times New Roman", WHLP_FONTFAM_SERIF, 24, |
76 | WHLP_FONT_ITALIC, 0, 0, 0); |
77 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 24, |
78 | 0, 0, 0, 0); |
4b3c5afb |
79 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 24, |
80 | WHLP_FONT_ITALIC, 0, 0, 0); |
81 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 24, |
82 | WHLP_FONT_BOLD, 0, 0, 0); |
d7482997 |
83 | whlp_create_font(h, "Arial", WHLP_FONTFAM_SERIF, 30, |
84 | WHLP_FONT_BOLD, 0, 0, 0); |
85 | whlp_create_font(h, "Arial", WHLP_FONTFAM_SERIF, 30, |
86 | WHLP_FONT_BOLD|WHLP_FONT_ITALIC, 0, 0, 0); |
87 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 30, |
88 | WHLP_FONT_BOLD, 0, 0, 0); |
89 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_SANS, 18, |
90 | WHLP_FONT_STRIKEOUT, 0, 0, 0); |
91 | |
92 | /* |
93 | * Loop over the source form finding out whether the user has |
50d6b4bd |
94 | * specified particular help topic names for anything. Also |
95 | * pick out the output file name at this stage. |
d7482997 |
96 | */ |
50d6b4bd |
97 | filename = dupstr("output.hlp"); |
d7482997 |
98 | for (p = sourceform; p; p = p->next) { |
99 | p->private_data = NULL; |
100 | if (p->type == para_Config && p->parent) { |
101 | if (!ustricmp(p->keyword, L"winhelp-topic")) { |
102 | char *topicname; |
4b3c5afb |
103 | whlp_convert(uadv(p->keyword), 0, &topicname, 0); |
d7482997 |
104 | /* Store the topic name in the private_data field of the |
105 | * containing section. */ |
106 | p->parent->private_data = topicname; |
50d6b4bd |
107 | } else if (!ustricmp(p->keyword, L"winhelp-filename")) { |
108 | sfree(filename); |
e4ea58f8 |
109 | filename = dupstr(adv(p->origkeyword)); |
d7482997 |
110 | } |
111 | } |
112 | } |
113 | |
114 | /* |
50d6b4bd |
115 | * Ensure the output file name has a .hlp extension. This is |
116 | * required since we must create the .cnt file in parallel with |
117 | * it. |
118 | */ |
119 | { |
120 | int len = strlen(filename); |
121 | if (len < 4 || filename[len-4] != '.' || |
122 | tolower(filename[len-3] != 'h') || |
123 | tolower(filename[len-2] != 'l') || |
124 | tolower(filename[len-1] != 'p')) { |
125 | char *newf; |
126 | newf = mknewa(char, len + 5); |
127 | sprintf(newf, "%s.hlp", filename); |
128 | sfree(filename); |
129 | filename = newf; |
130 | len = strlen(newf); |
131 | } |
e4ea58f8 |
132 | cntname = mknewa(char, len+1); |
50d6b4bd |
133 | sprintf(cntname, "%.*s.cnt", len-4, filename); |
134 | } |
135 | |
136 | state.cntfp = fopen(cntname, "wb"); |
137 | state.cnt_last_level = -1; state.cnt_workaround = 0; |
138 | |
139 | /* |
d7482997 |
140 | * Loop over the source form registering WHLP_TOPICs for |
141 | * everything. |
142 | */ |
143 | |
144 | contents_topic = whlp_register_topic(h, "Top", NULL); |
145 | whlp_primary_topic(h, contents_topic); |
146 | for (p = sourceform; p; p = p->next) { |
147 | if (p->type == para_Chapter || |
148 | p->type == para_Appendix || |
149 | p->type == para_UnnumberedChapter || |
150 | p->type == para_Heading || |
151 | p->type == para_Subsect) { |
152 | char *topicid = p->private_data; |
153 | char *errstr; |
154 | |
155 | p->private_data = whlp_register_topic(h, topicid, &errstr); |
156 | if (!p->private_data) { |
157 | p->private_data = whlp_register_topic(h, NULL, NULL); |
158 | error(err_winhelp_ctxclash, &p->fpos, topicid, errstr); |
159 | } |
160 | sfree(topicid); |
161 | } |
162 | } |
163 | |
164 | /* |
165 | * Loop over the index entries, preparing final text forms for |
166 | * each one. |
167 | */ |
168 | for (i = 0; (ie = index234(idx->entries, i)) != NULL; i++) { |
169 | rdstringc rs = {0, 0, NULL}; |
170 | whlp_rdaddwc(&rs, ie->text); |
171 | ie->backend_data = rs.text; |
172 | } |
173 | |
174 | whlp_prepare(h); |
175 | |
176 | /* ------------------------------------------------------------------ |
8902e0ed |
177 | * Begin the contents page. |
d7482997 |
178 | */ |
179 | |
180 | whlp_begin_topic(h, contents_topic, "Contents", "DB(\"btn_up\")", NULL); |
181 | |
182 | /* |
183 | * The manual title goes in the non-scroll region, and also |
184 | * goes into the system title slot. |
185 | */ |
186 | { |
187 | rdstringc rs = {0, 0, NULL}; |
188 | for (p = sourceform; p; p = p->next) { |
189 | if (p->type == para_Title) { |
190 | whlp_begin_para(h, WHLP_PARA_NONSCROLL); |
191 | whlp_mkparagraph(&state, FONT_TITLE, p->words, FALSE); |
192 | whlp_rdaddwc(&rs, p->words); |
193 | whlp_end_para(h); |
194 | } |
195 | } |
196 | if (rs.text) { |
197 | whlp_title(h, rs.text); |
198 | fprintf(state.cntfp, ":Title %s\r\n", rs.text); |
199 | sfree(rs.text); |
200 | } |
201 | whlp_contents_write(&state, 1, "Title page", contents_topic); |
202 | /* FIXME: configurability in that string */ |
203 | } |
204 | |
9057a0a8 |
205 | /* |
206 | * Put the copyright into the system section. |
207 | */ |
208 | { |
209 | rdstringc rs = {0, 0, NULL}; |
210 | for (p = sourceform; p; p = p->next) { |
211 | if (p->type == para_Copyright) |
212 | whlp_rdaddwc(&rs, p->words); |
213 | } |
214 | if (rs.text) { |
215 | whlp_copyright(h, rs.text); |
216 | sfree(rs.text); |
217 | } |
218 | } |
219 | |
d7482997 |
220 | lastsect = NULL; |
221 | |
222 | /* ------------------------------------------------------------------ |
223 | * Now we've done the contents page, we're ready to go through |
224 | * and do the main manual text. Ooh. |
225 | */ |
7136a6c7 |
226 | nesting = 0; |
d7482997 |
227 | for (p = sourceform; p; p = p->next) switch (p->type) { |
228 | /* |
229 | * Things we ignore because we've already processed them or |
230 | * aren't going to touch them in this pass. |
231 | */ |
232 | case para_IM: |
233 | case para_BR: |
234 | case para_Biblio: /* only touch BiblioCited */ |
235 | case para_VersionID: |
d7482997 |
236 | case para_NoCite: |
237 | case para_Title: |
238 | break; |
239 | |
7136a6c7 |
240 | case para_LcontPush: |
2614b01d |
241 | case para_QuotePush: |
7136a6c7 |
242 | nesting++; |
243 | break; |
244 | case para_LcontPop: |
2614b01d |
245 | case para_QuotePop: |
7136a6c7 |
246 | assert(nesting > 0); |
247 | nesting--; |
248 | break; |
249 | |
d7482997 |
250 | /* |
251 | * Chapter and section titles: start a new Help topic. |
252 | */ |
253 | case para_Chapter: |
254 | case para_Appendix: |
255 | case para_UnnumberedChapter: |
256 | case para_Heading: |
257 | case para_Subsect: |
8902e0ed |
258 | |
259 | if (!done_contents_topic) { |
260 | paragraph *p; |
261 | |
262 | /* |
263 | * If this is the first section title we've seen, then |
264 | * we're currently still in the contents topic. We |
265 | * should therefore finish up the contents page by |
9057a0a8 |
266 | * writing a nav menu. |
8902e0ed |
267 | */ |
268 | for (p = sourceform; p; p = p->next) { |
269 | if (p->type == para_Chapter || |
270 | p->type == para_Appendix || |
271 | p->type == para_UnnumberedChapter) |
272 | whlp_navmenu(&state, p); |
273 | } |
274 | |
275 | state.curr_topic = contents_topic; |
276 | |
277 | done_contents_topic = TRUE; |
278 | } |
279 | |
d7482997 |
280 | if (lastsect && lastsect->child) { |
281 | paragraph *q; |
282 | /* |
283 | * Do a navigation menu for the previous section we |
284 | * were in. |
285 | */ |
286 | for (q = lastsect->child; q; q = q->sibling) |
287 | whlp_navmenu(&state, q); |
288 | } |
289 | { |
290 | rdstringc rs = {0, 0, NULL}; |
291 | WHLP_TOPIC new_topic, parent_topic; |
292 | char *macro, *topicid; |
293 | |
294 | new_topic = p->private_data; |
295 | whlp_browse_link(h, state.curr_topic, new_topic); |
296 | state.curr_topic = new_topic; |
297 | |
298 | if (p->kwtext) { |
299 | whlp_rdaddwc(&rs, p->kwtext); |
300 | rdaddsc(&rs, ": "); /* FIXME: configurability */ |
301 | } |
302 | whlp_rdaddwc(&rs, p->words); |
303 | if (p->parent == NULL) |
304 | parent_topic = contents_topic; |
305 | else |
306 | parent_topic = (WHLP_TOPIC)p->parent->private_data; |
307 | topicid = whlp_topic_id(parent_topic); |
308 | macro = smalloc(100+strlen(topicid)); |
309 | sprintf(macro, |
310 | "CBB(\"btn_up\",\"JI(`',`%s')\");EB(\"btn_up\")", |
311 | topicid); |
312 | whlp_begin_topic(h, new_topic, |
313 | rs.text ? rs.text : "", |
314 | macro, NULL); |
315 | sfree(macro); |
316 | |
317 | { |
318 | /* |
319 | * Output the .cnt entry. |
320 | * |
321 | * WinHelp has a bug involving having an internal |
322 | * node followed by a leaf at the same level: the |
323 | * leaf is output at the wrong level. We can mostly |
324 | * work around this by modifying the leaf level |
325 | * itself (see whlp_contents_write), but this |
326 | * doesn't work for top-level sections since we |
327 | * can't turn a level-1 leaf into a level-0 one. So |
328 | * for top-level leaf sections (Bibliography |
329 | * springs to mind), we output an internal node |
330 | * containing only the leaf for that section. |
331 | */ |
332 | int i; |
333 | paragraph *q; |
334 | |
335 | /* Count up the level. */ |
336 | i = 1; |
337 | for (q = p; q->parent; q = q->parent) i++; |
338 | |
339 | if (p->child || !p->parent) { |
340 | /* |
341 | * If p has children then it needs to be a |
342 | * folder; if it has no parent then it needs to |
343 | * be a folder to work around the bug. |
344 | */ |
345 | whlp_contents_write(&state, i, rs.text, NULL); |
346 | i++; |
347 | } |
348 | whlp_contents_write(&state, i, rs.text, new_topic); |
349 | } |
350 | |
351 | sfree(rs.text); |
352 | |
353 | whlp_begin_para(h, WHLP_PARA_NONSCROLL); |
354 | if (p->kwtext) { |
355 | whlp_mkparagraph(&state, FONT_TITLE, p->kwtext, FALSE); |
356 | whlp_set_font(h, FONT_TITLE); |
357 | whlp_text(h, ": "); /* FIXME: configurability */ |
358 | } |
359 | whlp_mkparagraph(&state, FONT_TITLE, p->words, FALSE); |
360 | whlp_end_para(h); |
361 | |
362 | lastsect = p; |
363 | } |
364 | break; |
365 | |
366 | case para_Rule: |
367 | whlp_para_attr(h, WHLP_PARA_SPACEBELOW, 12); |
368 | whlp_para_attr(h, WHLP_PARA_ALIGNMENT, WHLP_ALIGN_CENTRE); |
369 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
370 | whlp_set_font(h, FONT_RULE); |
371 | #define TEN "\xA0\xA0\xA0\xA0\xA0\xA0\xA0\xA0\xA0\xA0" |
372 | #define TWENTY TEN TEN |
373 | #define FORTY TWENTY TWENTY |
374 | #define EIGHTY FORTY FORTY |
375 | whlp_text(h, EIGHTY); |
376 | #undef TEN |
377 | #undef TWENTY |
378 | #undef FORTY |
379 | #undef EIGHTY |
380 | whlp_end_para(h); |
381 | break; |
382 | |
383 | case para_Normal: |
9057a0a8 |
384 | case para_Copyright: |
7136a6c7 |
385 | case para_DescribedThing: |
386 | case para_Description: |
d7482997 |
387 | case para_BiblioCited: |
388 | case para_Bullet: |
389 | case para_NumberedList: |
390 | whlp_para_attr(h, WHLP_PARA_SPACEBELOW, 12); |
391 | if (p->type == para_Bullet || p->type == para_NumberedList) { |
7136a6c7 |
392 | whlp_para_attr(h, WHLP_PARA_LEFTINDENT, 72*nesting + 72); |
d7482997 |
393 | whlp_para_attr(h, WHLP_PARA_FIRSTLINEINDENT, -36); |
394 | whlp_set_tabstop(h, 72, WHLP_ALIGN_LEFT); |
395 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
396 | whlp_set_font(h, FONT_NORMAL); |
397 | if (p->type == para_Bullet) { |
398 | whlp_text(h, "\x95"); |
399 | } else { |
400 | whlp_mkparagraph(&state, FONT_NORMAL, p->kwtext, FALSE); |
401 | whlp_text(h, "."); |
402 | } |
403 | whlp_tab(h); |
404 | } else { |
7136a6c7 |
405 | whlp_para_attr(h, WHLP_PARA_LEFTINDENT, |
406 | 72*nesting + (p->type==para_Description ? 72 : 0)); |
d7482997 |
407 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
408 | } |
409 | |
410 | if (p->type == para_BiblioCited) { |
411 | whlp_mkparagraph(&state, FONT_NORMAL, p->kwtext, FALSE); |
412 | whlp_text(h, " "); |
413 | } |
414 | |
415 | whlp_mkparagraph(&state, FONT_NORMAL, p->words, FALSE); |
416 | whlp_end_para(h); |
417 | break; |
418 | |
419 | case para_Code: |
420 | /* |
421 | * In a code paragraph, each individual word is a line. For |
422 | * Help files, we will have to output this as a set of |
423 | * paragraphs, all but the last of which don't set |
424 | * SPACEBELOW. |
425 | */ |
426 | { |
427 | word *w; |
4b3c5afb |
428 | wchar_t *t, *e; |
d7482997 |
429 | char *c; |
4b3c5afb |
430 | |
431 | for (w = p->words; w; w = w->next) if (w->type == word_WeakCode) { |
432 | t = w->text; |
433 | if (w->next && w->next->type == word_Emph) { |
434 | w = w->next; |
435 | e = w->text; |
436 | } else |
437 | e = NULL; |
438 | |
d7482997 |
439 | if (!w->next) |
440 | whlp_para_attr(h, WHLP_PARA_SPACEBELOW, 12); |
4b3c5afb |
441 | |
7136a6c7 |
442 | whlp_para_attr(h, WHLP_PARA_LEFTINDENT, 72*nesting); |
d7482997 |
443 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
4b3c5afb |
444 | while (e && *e && *t) { |
445 | int n; |
446 | int ec = *e; |
447 | |
448 | for (n = 0; t[n] && e[n] && e[n] == ec; n++); |
449 | if (ec == 'i') |
450 | whlp_set_font(h, FONT_ITAL_CODE); |
451 | else if (ec == 'b') |
452 | whlp_set_font(h, FONT_BOLD_CODE); |
453 | else |
454 | whlp_set_font(h, FONT_CODE); |
455 | whlp_convert(t, n, &c, FALSE); |
456 | whlp_text(h, c); |
457 | sfree(c); |
458 | t += n; |
459 | e += n; |
460 | } |
d7482997 |
461 | whlp_set_font(h, FONT_CODE); |
4b3c5afb |
462 | whlp_convert(t, 0, &c, FALSE); |
d7482997 |
463 | whlp_text(h, c); |
464 | sfree(c); |
465 | whlp_end_para(h); |
466 | } |
467 | } |
468 | break; |
469 | } |
470 | |
471 | fclose(state.cntfp); |
472 | whlp_close(h, filename); |
473 | |
474 | /* |
475 | * Loop over the index entries, cleaning up our final text |
476 | * forms. |
477 | */ |
478 | for (i = 0; (ie = index234(idx->entries, i)) != NULL; i++) { |
479 | sfree(ie->backend_data); |
480 | } |
50d6b4bd |
481 | |
482 | sfree(filename); |
483 | sfree(cntname); |
d7482997 |
484 | } |
485 | |
486 | static void whlp_contents_write(struct bk_whlp_state *state, |
487 | int level, char *text, WHLP_TOPIC topic) { |
488 | /* |
489 | * Horrifying bug in WinHelp. When dropping a section level or |
490 | * more without using a folder-type entry, WinHelp accidentally |
491 | * adds one to the section level. So we correct for that here. |
492 | */ |
493 | if (state->cnt_last_level > level && topic) |
494 | state->cnt_workaround = -1; |
495 | else if (!topic) |
496 | state->cnt_workaround = 0; |
497 | state->cnt_last_level = level; |
498 | |
499 | fprintf(state->cntfp, "%d ", level + state->cnt_workaround); |
500 | while (*text) { |
501 | if (*text == '=') |
502 | fputc('\\', state->cntfp); |
503 | fputc(*text, state->cntfp); |
504 | text++; |
505 | } |
506 | if (topic) |
507 | fprintf(state->cntfp, "=%s", whlp_topic_id(topic)); |
508 | fputc('\n', state->cntfp); |
509 | } |
510 | |
511 | static void whlp_navmenu(struct bk_whlp_state *state, paragraph *p) { |
512 | whlp_begin_para(state->h, WHLP_PARA_NONSCROLL); |
513 | whlp_start_hyperlink(state->h, (WHLP_TOPIC)p->private_data); |
514 | if (p->kwtext) { |
515 | whlp_mkparagraph(state, FONT_NORMAL, p->kwtext, TRUE); |
516 | whlp_set_font(state->h, FONT_NORMAL); |
517 | whlp_text(state->h, ": "); /* FIXME: configurability */ |
518 | } |
519 | whlp_mkparagraph(state, FONT_NORMAL, p->words, TRUE); |
520 | whlp_end_hyperlink(state->h); |
521 | whlp_end_para(state->h); |
522 | |
523 | } |
524 | |
525 | static void whlp_mkparagraph(struct bk_whlp_state *state, |
526 | int font, word *text, int subsidiary) { |
527 | keyword *kwl; |
528 | int deffont = font; |
529 | int currfont = -1; |
530 | int newfont; |
531 | char *c; |
532 | paragraph *xref_target = NULL; |
533 | |
534 | for (; text; text = text->next) switch (text->type) { |
535 | case word_HyperLink: |
536 | case word_HyperEnd: |
537 | break; |
538 | |
539 | case word_IndexRef: |
540 | if (subsidiary) break; /* disabled in subsidiary bits */ |
541 | { |
542 | indextag *tag = index_findtag(state->idx, text->text); |
543 | int i; |
544 | if (!tag) |
545 | break; |
546 | for (i = 0; i < tag->nrefs; i++) |
547 | whlp_index_term(state->h, tag->refs[i]->backend_data, |
548 | state->curr_topic); |
549 | } |
550 | break; |
551 | |
552 | case word_UpperXref: |
553 | case word_LowerXref: |
554 | if (subsidiary) break; /* disabled in subsidiary bits */ |
555 | kwl = kw_lookup(state->keywords, text->text); |
7cf305b7 |
556 | assert(xref_target == NULL); |
557 | if (kwl) { |
558 | if (kwl->para->type == para_NumberedList) { |
559 | break; /* don't xref to numbered list items */ |
560 | } else if (kwl->para->type == para_BiblioCited) { |
561 | /* |
562 | * An xref to a bibliography item jumps to the section |
563 | * containing it. |
564 | */ |
565 | if (kwl->para->parent) |
566 | xref_target = kwl->para->parent; |
567 | else |
568 | break; |
569 | } else { |
570 | xref_target = kwl->para; |
571 | } |
572 | whlp_start_hyperlink(state->h, |
573 | (WHLP_TOPIC)xref_target->private_data); |
574 | } |
d7482997 |
575 | break; |
576 | |
577 | case word_XrefEnd: |
578 | if (subsidiary) break; /* disabled in subsidiary bits */ |
579 | if (xref_target) |
580 | whlp_end_hyperlink(state->h); |
581 | xref_target = NULL; |
582 | break; |
583 | |
584 | case word_Normal: |
585 | case word_Emph: |
586 | case word_Code: |
587 | case word_WeakCode: |
588 | case word_WhiteSpace: |
589 | case word_EmphSpace: |
590 | case word_CodeSpace: |
591 | case word_WkCodeSpace: |
592 | case word_Quote: |
593 | case word_EmphQuote: |
594 | case word_CodeQuote: |
595 | case word_WkCodeQuote: |
596 | if (towordstyle(text->type) == word_Emph) |
597 | newfont = deffont + FONT_EMPH; |
598 | else if (towordstyle(text->type) == word_Code || |
599 | towordstyle(text->type) == word_WeakCode) |
600 | newfont = deffont + FONT_CODE; |
601 | else |
602 | newfont = deffont; |
603 | if (newfont != currfont) { |
604 | currfont = newfont; |
605 | whlp_set_font(state->h, newfont); |
606 | } |
607 | if (removeattr(text->type) == word_Normal) { |
12efc259 |
608 | if (whlp_convert(text->text, 0, &c, TRUE) || !text->alt) |
d7482997 |
609 | whlp_text(state->h, c); |
610 | else |
611 | whlp_mkparagraph(state, deffont, text->alt, FALSE); |
612 | sfree(c); |
613 | } else if (removeattr(text->type) == word_WhiteSpace) { |
614 | whlp_text(state->h, " "); |
615 | } else if (removeattr(text->type) == word_Quote) { |
616 | whlp_text(state->h, |
617 | quoteaux(text->aux) == quote_Open ? "\x91" : "\x92"); |
618 | /* FIXME: configurability */ |
619 | } |
620 | break; |
621 | } |
622 | } |
623 | |
624 | static void whlp_rdaddwc(rdstringc *rs, word *text) { |
625 | char *c; |
626 | |
627 | for (; text; text = text->next) switch (text->type) { |
628 | case word_HyperLink: |
629 | case word_HyperEnd: |
630 | case word_UpperXref: |
631 | case word_LowerXref: |
632 | case word_XrefEnd: |
633 | case word_IndexRef: |
634 | break; |
635 | |
636 | case word_Normal: |
637 | case word_Emph: |
638 | case word_Code: |
639 | case word_WeakCode: |
640 | case word_WhiteSpace: |
641 | case word_EmphSpace: |
642 | case word_CodeSpace: |
643 | case word_WkCodeSpace: |
644 | case word_Quote: |
645 | case word_EmphQuote: |
646 | case word_CodeQuote: |
647 | case word_WkCodeQuote: |
648 | assert(text->type != word_CodeQuote && |
649 | text->type != word_WkCodeQuote); |
650 | if (removeattr(text->type) == word_Normal) { |
e4ea58f8 |
651 | if (whlp_convert(text->text, 0, &c, FALSE) || !text->alt) |
d7482997 |
652 | rdaddsc(rs, c); |
653 | else |
654 | whlp_rdaddwc(rs, text->alt); |
655 | sfree(c); |
656 | } else if (removeattr(text->type) == word_WhiteSpace) { |
657 | rdaddc(rs, ' '); |
658 | } else if (removeattr(text->type) == word_Quote) { |
659 | rdaddc(rs, quoteaux(text->aux) == quote_Open ? '\x91' : '\x92'); |
660 | /* FIXME: configurability */ |
661 | } |
662 | break; |
663 | } |
664 | } |
665 | |
666 | /* |
667 | * Convert a wide string into a string of chars. If `result' is |
668 | * non-NULL, mallocs the resulting string and stores a pointer to |
669 | * it in `*result'. If `result' is NULL, merely checks whether all |
670 | * characters in the string are feasible for the output character |
671 | * set. |
672 | * |
673 | * Return is nonzero if all characters are OK. If not all |
674 | * characters are OK but `result' is non-NULL, a result _will_ |
675 | * still be generated! |
676 | */ |
4b3c5afb |
677 | static int whlp_convert(wchar_t *s, int maxlen, |
678 | char **result, int hard_spaces) { |
d7482997 |
679 | /* |
680 | * FIXME. Currently this is ISO8859-1 only. |
681 | */ |
682 | int doing = (result != 0); |
683 | int ok = TRUE; |
684 | char *p = NULL; |
685 | int plen = 0, psize = 0; |
686 | |
4b3c5afb |
687 | if (maxlen <= 0) |
688 | maxlen = -1; |
689 | |
690 | for (; *s && maxlen != 0; s++, maxlen--) { |
d7482997 |
691 | wchar_t c = *s; |
692 | char outc; |
693 | |
694 | if ((c >= 32 && c <= 126) || |
695 | (c >= 160 && c <= 255)) { |
696 | /* Char is OK. */ |
697 | if (c == 32 && hard_spaces) |
698 | outc = '\240'; |
699 | else |
700 | outc = (char)c; |
701 | } else { |
702 | /* Char is not OK. */ |
703 | ok = FALSE; |
704 | outc = 0xBF; /* approximate the good old DEC `uh?' */ |
705 | } |
706 | if (doing) { |
707 | if (plen >= psize) { |
708 | psize = plen + 256; |
709 | p = resize(p, psize); |
710 | } |
711 | p[plen++] = outc; |
712 | } |
713 | } |
714 | if (doing) { |
715 | p = resize(p, plen+1); |
716 | p[plen] = '\0'; |
717 | *result = p; |
718 | } |
719 | return ok; |
720 | } |