| 1 | /* |
| 2 | * Windows Help backend for Halibut |
| 3 | */ |
| 4 | |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <ctype.h> |
| 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 | int charset; |
| 19 | charset_state cstate; |
| 20 | FILE *cntfp; |
| 21 | int cnt_last_level, cnt_workaround; |
| 22 | }; |
| 23 | |
| 24 | typedef struct { |
| 25 | int charset; |
| 26 | wchar_t *bullet, *lquote, *rquote, *titlepage, *sectsuffix, *listsuffix; |
| 27 | char *filename; |
| 28 | } whlpconf; |
| 29 | |
| 30 | /* |
| 31 | * Indexes of fonts in our standard font descriptor set. |
| 32 | */ |
| 33 | enum { |
| 34 | FONT_NORMAL, |
| 35 | FONT_EMPH, |
| 36 | FONT_CODE, |
| 37 | FONT_ITAL_CODE, |
| 38 | FONT_BOLD_CODE, |
| 39 | FONT_TITLE, |
| 40 | FONT_TITLE_EMPH, |
| 41 | FONT_TITLE_CODE, |
| 42 | FONT_RULE |
| 43 | }; |
| 44 | |
| 45 | static void whlp_rdaddwc(rdstringc *rs, word *text, whlpconf *conf, |
| 46 | charset_state *state); |
| 47 | static void whlp_rdadds(rdstringc *rs, const wchar_t *text, whlpconf *conf, |
| 48 | charset_state *state); |
| 49 | static void whlp_mkparagraph(struct bk_whlp_state *state, |
| 50 | int font, word *text, int subsidiary, |
| 51 | whlpconf *conf); |
| 52 | static void whlp_navmenu(struct bk_whlp_state *state, paragraph *p, |
| 53 | whlpconf *conf); |
| 54 | static void whlp_contents_write(struct bk_whlp_state *state, |
| 55 | int level, char *text, WHLP_TOPIC topic); |
| 56 | static void whlp_wtext(struct bk_whlp_state *state, const wchar_t *text); |
| 57 | |
| 58 | paragraph *whlp_config_filename(char *filename) |
| 59 | { |
| 60 | return cmdline_cfg_simple("winhelp-filename", filename, NULL); |
| 61 | } |
| 62 | |
| 63 | static whlpconf whlp_configure(paragraph *source) { |
| 64 | paragraph *p; |
| 65 | whlpconf ret; |
| 66 | |
| 67 | /* |
| 68 | * Defaults. |
| 69 | */ |
| 70 | ret.charset = CS_CP1252; |
| 71 | ret.bullet = L"\x2022\0-\0\0"; |
| 72 | ret.lquote = L"\x2018\0\x2019\0\"\0\"\0\0"; |
| 73 | ret.rquote = uadv(ret.lquote); |
| 74 | ret.filename = dupstr("output.hlp"); |
| 75 | ret.titlepage = L"Title page"; |
| 76 | ret.sectsuffix = L": "; |
| 77 | ret.listsuffix = L"."; |
| 78 | |
| 79 | /* |
| 80 | * Two-pass configuration so that we can pick up global config |
| 81 | * (e.g. `quotes') before having it overridden by specific |
| 82 | * config (`win-quotes'), irrespective of the order in which |
| 83 | * they occur. |
| 84 | */ |
| 85 | for (p = source; p; p = p->next) { |
| 86 | if (p->type == para_Config) { |
| 87 | if (!ustricmp(p->keyword, L"quotes")) { |
| 88 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
| 89 | ret.lquote = uadv(p->keyword); |
| 90 | ret.rquote = uadv(ret.lquote); |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | for (p = source; p; p = p->next) { |
| 97 | p->private_data = NULL; |
| 98 | if (p->type == para_Config) { |
| 99 | /* |
| 100 | * In principle we should support a `winhelp-charset' |
| 101 | * here. We don't, because my WinHelp output code |
| 102 | * doesn't know how to change character set. Once I |
| 103 | * find out, I'll support it. |
| 104 | */ |
| 105 | if (p->parent && !ustricmp(p->keyword, L"winhelp-topic")) { |
| 106 | /* Store the topic name in the private_data field of the |
| 107 | * containing section. */ |
| 108 | p->parent->private_data = uadv(p->keyword); |
| 109 | } else if (!ustricmp(p->keyword, L"winhelp-filename")) { |
| 110 | sfree(ret.filename); |
| 111 | ret.filename = dupstr(adv(p->origkeyword)); |
| 112 | } else if (!ustricmp(p->keyword, L"winhelp-bullet")) { |
| 113 | ret.bullet = uadv(p->keyword); |
| 114 | } else if (!ustricmp(p->keyword, L"winhelp-section-suffix")) { |
| 115 | ret.sectsuffix = uadv(p->keyword); |
| 116 | } else if (!ustricmp(p->keyword, L"winhelp-list-suffix")) { |
| 117 | ret.listsuffix = uadv(p->keyword); |
| 118 | } else if (!ustricmp(p->keyword, L"winhelp-contents-titlepage")) { |
| 119 | ret.titlepage = uadv(p->keyword); |
| 120 | } else if (!ustricmp(p->keyword, L"winhelp-quotes")) { |
| 121 | if (*uadv(p->keyword) && *uadv(uadv(p->keyword))) { |
| 122 | ret.lquote = uadv(p->keyword); |
| 123 | ret.rquote = uadv(ret.lquote); |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | /* |
| 130 | * Now process fallbacks on quote characters and bullets. |
| 131 | */ |
| 132 | while (*uadv(ret.rquote) && *uadv(uadv(ret.rquote)) && |
| 133 | (!cvt_ok(ret.charset, ret.lquote) || |
| 134 | !cvt_ok(ret.charset, ret.rquote))) { |
| 135 | ret.lquote = uadv(ret.rquote); |
| 136 | ret.rquote = uadv(ret.lquote); |
| 137 | } |
| 138 | |
| 139 | while (*ret.bullet && *uadv(ret.bullet) && |
| 140 | !cvt_ok(ret.charset, ret.bullet)) |
| 141 | ret.bullet = uadv(ret.bullet); |
| 142 | |
| 143 | return ret; |
| 144 | } |
| 145 | |
| 146 | void whlp_backend(paragraph *sourceform, keywordlist *keywords, |
| 147 | indexdata *idx, void *unused) { |
| 148 | WHLP h; |
| 149 | char *cntname; |
| 150 | paragraph *p, *lastsect; |
| 151 | struct bk_whlp_state state; |
| 152 | WHLP_TOPIC contents_topic; |
| 153 | int i; |
| 154 | int nesting; |
| 155 | indexentry *ie; |
| 156 | int done_contents_topic = FALSE; |
| 157 | whlpconf conf; |
| 158 | |
| 159 | IGNORE(unused); |
| 160 | |
| 161 | h = state.h = whlp_new(); |
| 162 | state.keywords = keywords; |
| 163 | state.idx = idx; |
| 164 | |
| 165 | whlp_start_macro(h, "CB(\"btn_about\",\"&About\",\"About()\")"); |
| 166 | whlp_start_macro(h, "CB(\"btn_up\",\"&Up\",\"Contents()\")"); |
| 167 | whlp_start_macro(h, "BrowseButtons()"); |
| 168 | |
| 169 | whlp_create_font(h, "Times New Roman", WHLP_FONTFAM_SERIF, 24, |
| 170 | 0, 0, 0, 0); |
| 171 | whlp_create_font(h, "Times New Roman", WHLP_FONTFAM_SERIF, 24, |
| 172 | WHLP_FONT_ITALIC, 0, 0, 0); |
| 173 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 24, |
| 174 | 0, 0, 0, 0); |
| 175 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 24, |
| 176 | WHLP_FONT_ITALIC, 0, 0, 0); |
| 177 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 24, |
| 178 | WHLP_FONT_BOLD, 0, 0, 0); |
| 179 | whlp_create_font(h, "Arial", WHLP_FONTFAM_SERIF, 30, |
| 180 | WHLP_FONT_BOLD, 0, 0, 0); |
| 181 | whlp_create_font(h, "Arial", WHLP_FONTFAM_SERIF, 30, |
| 182 | WHLP_FONT_BOLD|WHLP_FONT_ITALIC, 0, 0, 0); |
| 183 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_FIXED, 30, |
| 184 | WHLP_FONT_BOLD, 0, 0, 0); |
| 185 | whlp_create_font(h, "Courier New", WHLP_FONTFAM_SANS, 18, |
| 186 | WHLP_FONT_STRIKEOUT, 0, 0, 0); |
| 187 | |
| 188 | conf = whlp_configure(sourceform); |
| 189 | |
| 190 | state.charset = conf.charset; |
| 191 | |
| 192 | /* |
| 193 | * Ensure the output file name has a .hlp extension. This is |
| 194 | * required since we must create the .cnt file in parallel with |
| 195 | * it. |
| 196 | */ |
| 197 | { |
| 198 | int len = strlen(conf.filename); |
| 199 | if (len < 4 || conf.filename[len-4] != '.' || |
| 200 | tolower(conf.filename[len-3] != 'h') || |
| 201 | tolower(conf.filename[len-2] != 'l') || |
| 202 | tolower(conf.filename[len-1] != 'p')) { |
| 203 | char *newf; |
| 204 | newf = snewn(len + 5, char); |
| 205 | sprintf(newf, "%s.hlp", conf.filename); |
| 206 | sfree(conf.filename); |
| 207 | conf.filename = newf; |
| 208 | len = strlen(newf); |
| 209 | } |
| 210 | cntname = snewn(len+1, char); |
| 211 | sprintf(cntname, "%.*s.cnt", len-4, conf.filename); |
| 212 | } |
| 213 | |
| 214 | state.cntfp = fopen(cntname, "wb"); |
| 215 | state.cnt_last_level = -1; state.cnt_workaround = 0; |
| 216 | |
| 217 | /* |
| 218 | * Loop over the source form registering WHLP_TOPICs for |
| 219 | * everything. |
| 220 | */ |
| 221 | |
| 222 | contents_topic = whlp_register_topic(h, "Top", NULL); |
| 223 | whlp_primary_topic(h, contents_topic); |
| 224 | for (p = sourceform; p; p = p->next) { |
| 225 | if (p->type == para_Chapter || |
| 226 | p->type == para_Appendix || |
| 227 | p->type == para_UnnumberedChapter || |
| 228 | p->type == para_Heading || |
| 229 | p->type == para_Subsect) { |
| 230 | |
| 231 | rdstringc rs = { 0, 0, NULL }; |
| 232 | char *errstr; |
| 233 | |
| 234 | whlp_rdadds(&rs, (wchar_t *)p->private_data, &conf, NULL); |
| 235 | |
| 236 | p->private_data = whlp_register_topic(h, rs.text, &errstr); |
| 237 | if (!p->private_data) { |
| 238 | p->private_data = whlp_register_topic(h, NULL, NULL); |
| 239 | error(err_winhelp_ctxclash, &p->fpos, rs.text, errstr); |
| 240 | } |
| 241 | sfree(rs.text); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | /* |
| 246 | * Loop over the index entries, preparing final text forms for |
| 247 | * each one. |
| 248 | */ |
| 249 | { |
| 250 | indexentry *ie_prev = NULL; |
| 251 | int nspaces = 1; |
| 252 | |
| 253 | for (i = 0; (ie = index234(idx->entries, i)) != NULL; i++) { |
| 254 | rdstringc rs = {0, 0, NULL}; |
| 255 | charset_state state = CHARSET_INIT_STATE; |
| 256 | whlp_rdaddwc(&rs, ie->text, &conf, &state); |
| 257 | |
| 258 | if (ie_prev) { |
| 259 | /* |
| 260 | * It appears that Windows Help's index mechanism |
| 261 | * is inherently case-insensitive. Therefore, if two |
| 262 | * adjacent index terms compare equal apart from |
| 263 | * case, I'm going to append nonbreaking spaces to |
| 264 | * the end of the second one so that Windows will |
| 265 | * treat them as distinct. |
| 266 | * |
| 267 | * This is nasty because we're depending on our |
| 268 | * case-insensitive comparison having the same |
| 269 | * semantics as the Windows one :-/ but I see no |
| 270 | * alternative. |
| 271 | */ |
| 272 | wchar_t *a, *b; |
| 273 | |
| 274 | a = ufroma_dup((char *)ie_prev->backend_data, conf.charset); |
| 275 | b = ufroma_dup(rs.text, conf.charset); |
| 276 | if (!ustricmp(a, b)) { |
| 277 | int j; |
| 278 | for (j = 0; j < nspaces; j++) |
| 279 | whlp_rdadds(&rs, L"\xA0", &conf, &state); |
| 280 | /* |
| 281 | * Add one to nspaces, so that if another term |
| 282 | * appears which is equivalent to the previous |
| 283 | * two it'll acquire one more space. |
| 284 | */ |
| 285 | nspaces++; |
| 286 | } else |
| 287 | nspaces = 1; |
| 288 | sfree(a); |
| 289 | sfree(b); |
| 290 | } |
| 291 | |
| 292 | whlp_rdadds(&rs, NULL, &conf, &state); |
| 293 | |
| 294 | ie->backend_data = rs.text; |
| 295 | |
| 296 | /* |
| 297 | * Only move ie_prev on if nspaces==1 (since when we |
| 298 | * have three or more adjacent terms differing only in |
| 299 | * case, we will want to compare with the _first_ of |
| 300 | * them because that won't have had any extra spaces |
| 301 | * added on which will foul up the comparison). |
| 302 | */ |
| 303 | if (nspaces == 1) |
| 304 | ie_prev = ie; |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | whlp_prepare(h); |
| 309 | |
| 310 | /* ------------------------------------------------------------------ |
| 311 | * Begin the contents page. |
| 312 | */ |
| 313 | |
| 314 | whlp_begin_topic(h, contents_topic, "Contents", "DB(\"btn_up\")", NULL); |
| 315 | state.curr_topic = contents_topic; |
| 316 | |
| 317 | /* |
| 318 | * The manual title goes in the non-scroll region, and also |
| 319 | * goes into the system title slot. |
| 320 | */ |
| 321 | { |
| 322 | rdstringc rs = {0, 0, NULL}; |
| 323 | for (p = sourceform; p; p = p->next) { |
| 324 | if (p->type == para_Title) { |
| 325 | whlp_begin_para(h, WHLP_PARA_NONSCROLL); |
| 326 | state.cstate = charset_init_state; |
| 327 | whlp_mkparagraph(&state, FONT_TITLE, p->words, FALSE, &conf); |
| 328 | whlp_wtext(&state, NULL); |
| 329 | whlp_end_para(h); |
| 330 | whlp_rdaddwc(&rs, p->words, &conf, NULL); |
| 331 | } |
| 332 | } |
| 333 | if (rs.text) { |
| 334 | whlp_title(h, rs.text); |
| 335 | fprintf(state.cntfp, ":Title %s\r\n", rs.text); |
| 336 | sfree(rs.text); |
| 337 | } |
| 338 | { |
| 339 | rdstringc rs2 = {0,0,NULL}; |
| 340 | whlp_rdadds(&rs2, conf.titlepage, &conf, NULL); |
| 341 | whlp_contents_write(&state, 1, rs2.text, contents_topic); |
| 342 | sfree(rs2.text); |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | /* |
| 347 | * Put the copyright into the system section. |
| 348 | */ |
| 349 | { |
| 350 | rdstringc rs = {0, 0, NULL}; |
| 351 | for (p = sourceform; p; p = p->next) { |
| 352 | if (p->type == para_Copyright) |
| 353 | whlp_rdaddwc(&rs, p->words, &conf, NULL); |
| 354 | } |
| 355 | if (rs.text) { |
| 356 | whlp_copyright(h, rs.text); |
| 357 | sfree(rs.text); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | lastsect = NULL; |
| 362 | |
| 363 | /* ------------------------------------------------------------------ |
| 364 | * Now we've done the contents page, we're ready to go through |
| 365 | * and do the main manual text. Ooh. |
| 366 | */ |
| 367 | nesting = 0; |
| 368 | for (p = sourceform; p; p = p->next) switch (p->type) { |
| 369 | /* |
| 370 | * Things we ignore because we've already processed them or |
| 371 | * aren't going to touch them in this pass. |
| 372 | */ |
| 373 | case para_IM: |
| 374 | case para_BR: |
| 375 | case para_Biblio: /* only touch BiblioCited */ |
| 376 | case para_VersionID: |
| 377 | case para_NoCite: |
| 378 | case para_Title: |
| 379 | break; |
| 380 | |
| 381 | case para_LcontPush: |
| 382 | case para_QuotePush: |
| 383 | nesting++; |
| 384 | break; |
| 385 | case para_LcontPop: |
| 386 | case para_QuotePop: |
| 387 | assert(nesting > 0); |
| 388 | nesting--; |
| 389 | break; |
| 390 | |
| 391 | /* |
| 392 | * Chapter and section titles: start a new Help topic. |
| 393 | */ |
| 394 | case para_Chapter: |
| 395 | case para_Appendix: |
| 396 | case para_UnnumberedChapter: |
| 397 | case para_Heading: |
| 398 | case para_Subsect: |
| 399 | |
| 400 | if (!done_contents_topic) { |
| 401 | paragraph *p; |
| 402 | |
| 403 | /* |
| 404 | * If this is the first section title we've seen, then |
| 405 | * we're currently still in the contents topic. We |
| 406 | * should therefore finish up the contents page by |
| 407 | * writing a nav menu. |
| 408 | */ |
| 409 | for (p = sourceform; p; p = p->next) { |
| 410 | if (p->type == para_Chapter || |
| 411 | p->type == para_Appendix || |
| 412 | p->type == para_UnnumberedChapter) |
| 413 | whlp_navmenu(&state, p, &conf); |
| 414 | } |
| 415 | |
| 416 | done_contents_topic = TRUE; |
| 417 | } |
| 418 | |
| 419 | if (lastsect && lastsect->child) { |
| 420 | paragraph *q; |
| 421 | /* |
| 422 | * Do a navigation menu for the previous section we |
| 423 | * were in. |
| 424 | */ |
| 425 | for (q = lastsect->child; q; q = q->sibling) |
| 426 | whlp_navmenu(&state, q, &conf); |
| 427 | } |
| 428 | { |
| 429 | rdstringc rs = {0, 0, NULL}; |
| 430 | WHLP_TOPIC new_topic, parent_topic; |
| 431 | char *macro, *topicid; |
| 432 | charset_state cstate = CHARSET_INIT_STATE; |
| 433 | |
| 434 | new_topic = p->private_data; |
| 435 | whlp_browse_link(h, state.curr_topic, new_topic); |
| 436 | state.curr_topic = new_topic; |
| 437 | |
| 438 | if (p->kwtext) { |
| 439 | whlp_rdaddwc(&rs, p->kwtext, &conf, &cstate); |
| 440 | whlp_rdadds(&rs, conf.sectsuffix, &conf, &cstate); |
| 441 | } |
| 442 | whlp_rdaddwc(&rs, p->words, &conf, &cstate); |
| 443 | whlp_rdadds(&rs, NULL, &conf, &cstate); |
| 444 | |
| 445 | if (p->parent == NULL) |
| 446 | parent_topic = contents_topic; |
| 447 | else |
| 448 | parent_topic = (WHLP_TOPIC)p->parent->private_data; |
| 449 | topicid = whlp_topic_id(parent_topic); |
| 450 | macro = smalloc(100+strlen(topicid)); |
| 451 | sprintf(macro, |
| 452 | "CBB(\"btn_up\",\"JI(`',`%s')\");EB(\"btn_up\")", |
| 453 | topicid); |
| 454 | whlp_begin_topic(h, new_topic, |
| 455 | rs.text ? rs.text : "", |
| 456 | macro, NULL); |
| 457 | sfree(macro); |
| 458 | |
| 459 | { |
| 460 | /* |
| 461 | * Output the .cnt entry. |
| 462 | * |
| 463 | * WinHelp has a bug involving having an internal |
| 464 | * node followed by a leaf at the same level: the |
| 465 | * leaf is output at the wrong level. We can mostly |
| 466 | * work around this by modifying the leaf level |
| 467 | * itself (see whlp_contents_write), but this |
| 468 | * doesn't work for top-level sections since we |
| 469 | * can't turn a level-1 leaf into a level-0 one. So |
| 470 | * for top-level leaf sections (Bibliography |
| 471 | * springs to mind), we output an internal node |
| 472 | * containing only the leaf for that section. |
| 473 | */ |
| 474 | int i; |
| 475 | paragraph *q; |
| 476 | |
| 477 | /* Count up the level. */ |
| 478 | i = 1; |
| 479 | for (q = p; q->parent; q = q->parent) i++; |
| 480 | |
| 481 | if (p->child || !p->parent) { |
| 482 | /* |
| 483 | * If p has children then it needs to be a |
| 484 | * folder; if it has no parent then it needs to |
| 485 | * be a folder to work around the bug. |
| 486 | */ |
| 487 | whlp_contents_write(&state, i, rs.text, NULL); |
| 488 | i++; |
| 489 | } |
| 490 | whlp_contents_write(&state, i, rs.text, new_topic); |
| 491 | } |
| 492 | |
| 493 | sfree(rs.text); |
| 494 | |
| 495 | whlp_begin_para(h, WHLP_PARA_NONSCROLL); |
| 496 | state.cstate = charset_init_state; |
| 497 | if (p->kwtext) { |
| 498 | whlp_mkparagraph(&state, FONT_TITLE, p->kwtext, FALSE, &conf); |
| 499 | whlp_set_font(h, FONT_TITLE); |
| 500 | whlp_wtext(&state, conf.sectsuffix); |
| 501 | } |
| 502 | whlp_mkparagraph(&state, FONT_TITLE, p->words, FALSE, &conf); |
| 503 | whlp_wtext(&state, NULL); |
| 504 | whlp_end_para(h); |
| 505 | |
| 506 | lastsect = p; |
| 507 | } |
| 508 | break; |
| 509 | |
| 510 | case para_Rule: |
| 511 | whlp_para_attr(h, WHLP_PARA_SPACEBELOW, 12); |
| 512 | whlp_para_attr(h, WHLP_PARA_ALIGNMENT, WHLP_ALIGN_CENTRE); |
| 513 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
| 514 | whlp_set_font(h, FONT_RULE); |
| 515 | state.cstate = charset_init_state; |
| 516 | #define TEN L"\xA0\xA0\xA0\xA0\xA0\xA0\xA0\xA0\xA0\xA0" |
| 517 | #define TWENTY TEN TEN |
| 518 | #define FORTY TWENTY TWENTY |
| 519 | #define EIGHTY FORTY FORTY |
| 520 | state.cstate = charset_init_state; |
| 521 | whlp_wtext(&state, EIGHTY); |
| 522 | whlp_wtext(&state, NULL); |
| 523 | #undef TEN |
| 524 | #undef TWENTY |
| 525 | #undef FORTY |
| 526 | #undef EIGHTY |
| 527 | whlp_end_para(h); |
| 528 | break; |
| 529 | |
| 530 | case para_Normal: |
| 531 | case para_Copyright: |
| 532 | case para_DescribedThing: |
| 533 | case para_Description: |
| 534 | case para_BiblioCited: |
| 535 | case para_Bullet: |
| 536 | case para_NumberedList: |
| 537 | whlp_para_attr(h, WHLP_PARA_SPACEBELOW, 12); |
| 538 | if (p->type == para_Bullet || p->type == para_NumberedList) { |
| 539 | whlp_para_attr(h, WHLP_PARA_LEFTINDENT, 72*nesting + 72); |
| 540 | whlp_para_attr(h, WHLP_PARA_FIRSTLINEINDENT, -36); |
| 541 | whlp_set_tabstop(h, 72, WHLP_ALIGN_LEFT); |
| 542 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
| 543 | whlp_set_font(h, FONT_NORMAL); |
| 544 | state.cstate = charset_init_state; |
| 545 | if (p->type == para_Bullet) { |
| 546 | whlp_wtext(&state, conf.bullet); |
| 547 | } else { |
| 548 | whlp_mkparagraph(&state, FONT_NORMAL, p->kwtext, FALSE, &conf); |
| 549 | whlp_wtext(&state, conf.listsuffix); |
| 550 | } |
| 551 | whlp_wtext(&state, NULL); |
| 552 | whlp_tab(h); |
| 553 | } else { |
| 554 | whlp_para_attr(h, WHLP_PARA_LEFTINDENT, |
| 555 | 72*nesting + (p->type==para_Description ? 72 : 0)); |
| 556 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
| 557 | } |
| 558 | |
| 559 | state.cstate = charset_init_state; |
| 560 | |
| 561 | if (p->type == para_BiblioCited) { |
| 562 | whlp_mkparagraph(&state, FONT_NORMAL, p->kwtext, FALSE, &conf); |
| 563 | whlp_wtext(&state, L" "); |
| 564 | } |
| 565 | |
| 566 | whlp_mkparagraph(&state, FONT_NORMAL, p->words, FALSE, &conf); |
| 567 | whlp_wtext(&state, NULL); |
| 568 | whlp_end_para(h); |
| 569 | break; |
| 570 | |
| 571 | case para_Code: |
| 572 | /* |
| 573 | * In a code paragraph, each individual word is a line. For |
| 574 | * Help files, we will have to output this as a set of |
| 575 | * paragraphs, all but the last of which don't set |
| 576 | * SPACEBELOW. |
| 577 | */ |
| 578 | { |
| 579 | word *w; |
| 580 | wchar_t *t, *e, *tmp; |
| 581 | |
| 582 | for (w = p->words; w; w = w->next) if (w->type == word_WeakCode) { |
| 583 | t = w->text; |
| 584 | if (w->next && w->next->type == word_Emph) { |
| 585 | w = w->next; |
| 586 | e = w->text; |
| 587 | } else |
| 588 | e = NULL; |
| 589 | |
| 590 | if (!w->next) |
| 591 | whlp_para_attr(h, WHLP_PARA_SPACEBELOW, 12); |
| 592 | |
| 593 | whlp_para_attr(h, WHLP_PARA_LEFTINDENT, 72*nesting); |
| 594 | whlp_begin_para(h, WHLP_PARA_SCROLL); |
| 595 | state.cstate = charset_init_state; |
| 596 | while (e && *e && *t) { |
| 597 | int n; |
| 598 | int ec = *e; |
| 599 | |
| 600 | for (n = 0; t[n] && e[n] && e[n] == ec; n++); |
| 601 | if (ec == 'i') |
| 602 | whlp_set_font(h, FONT_ITAL_CODE); |
| 603 | else if (ec == 'b') |
| 604 | whlp_set_font(h, FONT_BOLD_CODE); |
| 605 | else |
| 606 | whlp_set_font(h, FONT_CODE); |
| 607 | tmp = snewn(n+1, wchar_t); |
| 608 | ustrncpy(tmp, t, n); |
| 609 | tmp[n] = L'\0'; |
| 610 | whlp_wtext(&state, tmp); |
| 611 | whlp_wtext(&state, NULL); |
| 612 | state.cstate = charset_init_state; |
| 613 | sfree(tmp); |
| 614 | t += n; |
| 615 | e += n; |
| 616 | } |
| 617 | whlp_set_font(h, FONT_CODE); |
| 618 | whlp_wtext(&state, t); |
| 619 | whlp_wtext(&state, NULL); |
| 620 | whlp_end_para(h); |
| 621 | } |
| 622 | } |
| 623 | break; |
| 624 | } |
| 625 | |
| 626 | fclose(state.cntfp); |
| 627 | whlp_close(h, conf.filename); |
| 628 | |
| 629 | /* |
| 630 | * Loop over the index entries, cleaning up our final text |
| 631 | * forms. |
| 632 | */ |
| 633 | for (i = 0; (ie = index234(idx->entries, i)) != NULL; i++) { |
| 634 | sfree(ie->backend_data); |
| 635 | } |
| 636 | |
| 637 | sfree(conf.filename); |
| 638 | sfree(cntname); |
| 639 | } |
| 640 | |
| 641 | static void whlp_contents_write(struct bk_whlp_state *state, |
| 642 | int level, char *text, WHLP_TOPIC topic) { |
| 643 | /* |
| 644 | * Horrifying bug in WinHelp. When dropping a section level or |
| 645 | * more without using a folder-type entry, WinHelp accidentally |
| 646 | * adds one to the section level. So we correct for that here. |
| 647 | */ |
| 648 | if (state->cnt_last_level > level && topic) |
| 649 | state->cnt_workaround = -1; |
| 650 | else if (!topic) |
| 651 | state->cnt_workaround = 0; |
| 652 | state->cnt_last_level = level; |
| 653 | |
| 654 | fprintf(state->cntfp, "%d ", level + state->cnt_workaround); |
| 655 | while (*text) { |
| 656 | if (*text == '=') |
| 657 | fputc('\\', state->cntfp); |
| 658 | fputc(*text, state->cntfp); |
| 659 | text++; |
| 660 | } |
| 661 | if (topic) |
| 662 | fprintf(state->cntfp, "=%s", whlp_topic_id(topic)); |
| 663 | fputc('\n', state->cntfp); |
| 664 | } |
| 665 | |
| 666 | static void whlp_navmenu(struct bk_whlp_state *state, paragraph *p, |
| 667 | whlpconf *conf) { |
| 668 | whlp_begin_para(state->h, WHLP_PARA_SCROLL); |
| 669 | whlp_start_hyperlink(state->h, (WHLP_TOPIC)p->private_data); |
| 670 | state->cstate = charset_init_state; |
| 671 | if (p->kwtext) { |
| 672 | whlp_mkparagraph(state, FONT_NORMAL, p->kwtext, TRUE, conf); |
| 673 | whlp_set_font(state->h, FONT_NORMAL); |
| 674 | whlp_wtext(state, conf->sectsuffix); |
| 675 | } |
| 676 | whlp_mkparagraph(state, FONT_NORMAL, p->words, TRUE, conf); |
| 677 | whlp_wtext(state, NULL); |
| 678 | whlp_end_hyperlink(state->h); |
| 679 | whlp_end_para(state->h); |
| 680 | |
| 681 | } |
| 682 | |
| 683 | static void whlp_mkparagraph(struct bk_whlp_state *state, |
| 684 | int font, word *text, int subsidiary, |
| 685 | whlpconf *conf) { |
| 686 | keyword *kwl; |
| 687 | int deffont = font; |
| 688 | int currfont = -1; |
| 689 | int newfont; |
| 690 | paragraph *xref_target = NULL; |
| 691 | |
| 692 | for (; text; text = text->next) switch (text->type) { |
| 693 | case word_HyperLink: |
| 694 | case word_HyperEnd: |
| 695 | break; |
| 696 | |
| 697 | case word_IndexRef: |
| 698 | if (subsidiary) break; /* disabled in subsidiary bits */ |
| 699 | { |
| 700 | indextag *tag = index_findtag(state->idx, text->text); |
| 701 | int i; |
| 702 | if (!tag) |
| 703 | break; |
| 704 | for (i = 0; i < tag->nrefs; i++) |
| 705 | whlp_index_term(state->h, tag->refs[i]->backend_data, |
| 706 | state->curr_topic); |
| 707 | } |
| 708 | break; |
| 709 | |
| 710 | case word_UpperXref: |
| 711 | case word_LowerXref: |
| 712 | if (subsidiary) break; /* disabled in subsidiary bits */ |
| 713 | kwl = kw_lookup(state->keywords, text->text); |
| 714 | assert(xref_target == NULL); |
| 715 | if (kwl) { |
| 716 | if (kwl->para->type == para_NumberedList) { |
| 717 | break; /* don't xref to numbered list items */ |
| 718 | } else if (kwl->para->type == para_BiblioCited) { |
| 719 | /* |
| 720 | * An xref to a bibliography item jumps to the section |
| 721 | * containing it. |
| 722 | */ |
| 723 | if (kwl->para->parent) |
| 724 | xref_target = kwl->para->parent; |
| 725 | else |
| 726 | break; |
| 727 | } else { |
| 728 | xref_target = kwl->para; |
| 729 | } |
| 730 | whlp_start_hyperlink(state->h, |
| 731 | (WHLP_TOPIC)xref_target->private_data); |
| 732 | } |
| 733 | break; |
| 734 | |
| 735 | case word_XrefEnd: |
| 736 | if (subsidiary) break; /* disabled in subsidiary bits */ |
| 737 | if (xref_target) |
| 738 | whlp_end_hyperlink(state->h); |
| 739 | xref_target = NULL; |
| 740 | break; |
| 741 | |
| 742 | case word_Normal: |
| 743 | case word_Emph: |
| 744 | case word_Code: |
| 745 | case word_WeakCode: |
| 746 | case word_WhiteSpace: |
| 747 | case word_EmphSpace: |
| 748 | case word_CodeSpace: |
| 749 | case word_WkCodeSpace: |
| 750 | case word_Quote: |
| 751 | case word_EmphQuote: |
| 752 | case word_CodeQuote: |
| 753 | case word_WkCodeQuote: |
| 754 | if (towordstyle(text->type) == word_Emph) |
| 755 | newfont = deffont + FONT_EMPH; |
| 756 | else if (towordstyle(text->type) == word_Code || |
| 757 | towordstyle(text->type) == word_WeakCode) |
| 758 | newfont = deffont + FONT_CODE; |
| 759 | else |
| 760 | newfont = deffont; |
| 761 | if (newfont != currfont) { |
| 762 | currfont = newfont; |
| 763 | whlp_set_font(state->h, newfont); |
| 764 | } |
| 765 | if (removeattr(text->type) == word_Normal) { |
| 766 | if (cvt_ok(conf->charset, text->text) || !text->alt) |
| 767 | whlp_wtext(state, text->text); |
| 768 | else |
| 769 | whlp_mkparagraph(state, deffont, text->alt, FALSE, conf); |
| 770 | } else if (removeattr(text->type) == word_WhiteSpace) { |
| 771 | whlp_wtext(state, L" "); |
| 772 | } else if (removeattr(text->type) == word_Quote) { |
| 773 | whlp_wtext(state, |
| 774 | quoteaux(text->aux) == quote_Open ? |
| 775 | conf->lquote : conf->rquote); |
| 776 | } |
| 777 | break; |
| 778 | } |
| 779 | } |
| 780 | |
| 781 | static void whlp_rdaddwc(rdstringc *rs, word *text, whlpconf *conf, |
| 782 | charset_state *state) { |
| 783 | charset_state ourstate = CHARSET_INIT_STATE; |
| 784 | |
| 785 | if (!state) |
| 786 | state = &ourstate; |
| 787 | |
| 788 | for (; text; text = text->next) switch (text->type) { |
| 789 | case word_HyperLink: |
| 790 | case word_HyperEnd: |
| 791 | case word_UpperXref: |
| 792 | case word_LowerXref: |
| 793 | case word_XrefEnd: |
| 794 | case word_IndexRef: |
| 795 | break; |
| 796 | |
| 797 | case word_Normal: |
| 798 | case word_Emph: |
| 799 | case word_Code: |
| 800 | case word_WeakCode: |
| 801 | case word_WhiteSpace: |
| 802 | case word_EmphSpace: |
| 803 | case word_CodeSpace: |
| 804 | case word_WkCodeSpace: |
| 805 | case word_Quote: |
| 806 | case word_EmphQuote: |
| 807 | case word_CodeQuote: |
| 808 | case word_WkCodeQuote: |
| 809 | assert(text->type != word_CodeQuote && |
| 810 | text->type != word_WkCodeQuote); |
| 811 | if (removeattr(text->type) == word_Normal) { |
| 812 | if (cvt_ok(conf->charset, text->text) || !text->alt) |
| 813 | whlp_rdadds(rs, text->text, conf, state); |
| 814 | else |
| 815 | whlp_rdaddwc(rs, text->alt, conf, state); |
| 816 | } else if (removeattr(text->type) == word_WhiteSpace) { |
| 817 | whlp_rdadds(rs, L" ", conf, state); |
| 818 | } else if (removeattr(text->type) == word_Quote) { |
| 819 | whlp_rdadds(rs, quoteaux(text->aux) == quote_Open ? |
| 820 | conf->lquote : conf->rquote, conf, state); |
| 821 | } |
| 822 | break; |
| 823 | } |
| 824 | |
| 825 | if (state == &ourstate) |
| 826 | whlp_rdadds(rs, NULL, conf, state); |
| 827 | } |
| 828 | |
| 829 | static void whlp_rdadds(rdstringc *rs, const wchar_t *text, whlpconf *conf, |
| 830 | charset_state *state) |
| 831 | { |
| 832 | charset_state ourstate = CHARSET_INIT_STATE; |
| 833 | int textlen = text ? ustrlen(text) : 0; |
| 834 | char outbuf[256]; |
| 835 | int ret; |
| 836 | |
| 837 | if (!state) |
| 838 | state = &ourstate; |
| 839 | |
| 840 | while (textlen > 0 && |
| 841 | (ret = charset_from_unicode(&text, &textlen, outbuf, |
| 842 | lenof(outbuf)-1, |
| 843 | conf->charset, state, NULL)) > 0) { |
| 844 | outbuf[ret] = '\0'; |
| 845 | rdaddsc(rs, outbuf); |
| 846 | } |
| 847 | |
| 848 | if (text == NULL || state == &ourstate) { |
| 849 | if ((ret = charset_from_unicode(NULL, 0, outbuf, lenof(outbuf)-1, |
| 850 | conf->charset, state, NULL)) > 0) { |
| 851 | outbuf[ret] = '\0'; |
| 852 | rdaddsc(rs, outbuf); |
| 853 | } |
| 854 | } |
| 855 | } |
| 856 | |
| 857 | static void whlp_wtext(struct bk_whlp_state *state, const wchar_t *text) |
| 858 | { |
| 859 | int textlen = text ? ustrlen(text) : 0; |
| 860 | char outbuf[256]; |
| 861 | int ret; |
| 862 | |
| 863 | while (textlen > 0 && |
| 864 | (ret = charset_from_unicode(&text, &textlen, outbuf, |
| 865 | lenof(outbuf)-1, |
| 866 | state->charset, &state->cstate, |
| 867 | NULL)) > 0) { |
| 868 | outbuf[ret] = '\0'; |
| 869 | whlp_text(state->h, outbuf); |
| 870 | } |
| 871 | |
| 872 | if (text == NULL) { |
| 873 | if ((ret = charset_from_unicode(NULL, 0, outbuf, lenof(outbuf)-1, |
| 874 | state->charset, &state->cstate, |
| 875 | NULL)) > 0) { |
| 876 | outbuf[ret] = '\0'; |
| 877 | whlp_text(state->h, outbuf); |
| 878 | } |
| 879 | } |
| 880 | } |