Annotation of mandoc/html.c, Revision 1.183
1.183 ! schwarze 1: /* $Id: html.c,v 1.182 2014/12/01 04:34:06 schwarze Exp $ */
1.1 kristaps 2: /*
1.176 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.154 schwarze 4: * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.29 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.29 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.92 kristaps 18: #include "config.h"
19:
1.41 kristaps 20: #include <sys/types.h>
1.30 kristaps 21:
1.1 kristaps 22: #include <assert.h>
1.68 kristaps 23: #include <ctype.h>
1.76 kristaps 24: #include <stdarg.h>
1.29 kristaps 25: #include <stdio.h>
1.63 kristaps 26: #include <stdint.h>
1.1 kristaps 27: #include <stdlib.h>
1.33 kristaps 28: #include <string.h>
1.45 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.100 kristaps 31: #include "mandoc.h"
1.155 schwarze 32: #include "mandoc_aux.h"
1.58 kristaps 33: #include "out.h"
1.51 kristaps 34: #include "html.h"
1.64 kristaps 35: #include "main.h"
1.63 kristaps 36:
1.29 kristaps 37: struct htmldata {
1.63 kristaps 38: const char *name;
1.29 kristaps 39: int flags;
1.30 kristaps 40: #define HTML_CLRLINE (1 << 0)
41: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 42: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 43: };
1.7 kristaps 44:
1.29 kristaps 45: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 46: {"html", HTML_CLRLINE}, /* TAG_HTML */
47: {"head", HTML_CLRLINE}, /* TAG_HEAD */
48: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 49: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 50: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 51: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 52: {"h1", 0}, /* TAG_H1 */
53: {"h2", 0}, /* TAG_H2 */
54: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 55: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 56: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 57: {"a", 0}, /* TAG_A */
1.33 kristaps 58: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 59: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 60: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 61: {"tr", HTML_CLRLINE}, /* TAG_TR */
62: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 63: {"li", HTML_CLRLINE}, /* TAG_LI */
64: {"ul", HTML_CLRLINE}, /* TAG_UL */
65: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 66: {"dl", HTML_CLRLINE}, /* TAG_DL */
67: {"dt", HTML_CLRLINE}, /* TAG_DT */
68: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 69: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.118 kristaps 70: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 71: {"b", 0 }, /* TAG_B */
1.120 kristaps 72: {"i", 0 }, /* TAG_I */
1.121 kristaps 73: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 74: {"small", 0 }, /* TAG_SMALL */
1.165 kristaps 75: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.173 kristaps 76: {"math", HTML_CLRLINE}, /* TAG_MATH */
77: {"mrow", 0}, /* TAG_MROW */
78: {"mi", 0}, /* TAG_MI */
79: {"mo", 0}, /* TAG_MO */
80: {"msup", 0}, /* TAG_MSUP */
81: {"msub", 0}, /* TAG_MSUB */
82: {"msubsup", 0}, /* TAG_MSUBSUP */
83: {"mfrac", 0}, /* TAG_MFRAC */
84: {"msqrt", 0}, /* TAG_MSQRT */
85: {"mfenced", 0}, /* TAG_MFENCED */
86: {"mtable", 0}, /* TAG_MTABLE */
87: {"mtr", 0}, /* TAG_MTR */
88: {"mtd", 0}, /* TAG_MTD */
1.174 kristaps 89: {"munderover", 0}, /* TAG_MUNDEROVER */
90: {"munder", 0}, /* TAG_MUNDER*/
91: {"mover", 0}, /* TAG_MOVER*/
1.90 kristaps 92: };
93:
1.82 kristaps 94: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 95: "name", /* ATTR_NAME */
96: "rel", /* ATTR_REL */
97: "href", /* ATTR_HREF */
98: "type", /* ATTR_TYPE */
99: "media", /* ATTR_MEDIA */
100: "class", /* ATTR_CLASS */
101: "style", /* ATTR_STYLE */
102: "id", /* ATTR_ID */
1.125 kristaps 103: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 104: "charset", /* ATTR_CHARSET */
1.173 kristaps 105: "open", /* ATTR_OPEN */
106: "close", /* ATTR_CLOSE */
1.175 kristaps 107: "mathvariant", /* ATTR_MATHVARIANT */
1.29 kristaps 108: };
1.10 kristaps 109:
1.140 kristaps 110: static const char *const roffscales[SCALE_MAX] = {
111: "cm", /* SCALE_CM */
112: "in", /* SCALE_IN */
113: "pc", /* SCALE_PC */
114: "pt", /* SCALE_PT */
115: "em", /* SCALE_EM */
116: "em", /* SCALE_MM */
117: "ex", /* SCALE_EN */
118: "ex", /* SCALE_BU */
119: "em", /* SCALE_VS */
120: "ex", /* SCALE_FS */
121: };
122:
1.141 kristaps 123: static void bufncat(struct html *, const char *, size_t);
124: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 125: static int print_escape(char);
1.141 kristaps 126: static int print_encode(struct html *, const char *, int);
127: static void print_metaf(struct html *, enum mandoc_esc);
128: static void print_attr(struct html *, const char *, const char *);
1.82 kristaps 129:
1.156 schwarze 130:
1.180 schwarze 131: void *
132: html_alloc(const struct mchars *mchars, char *outopts)
1.10 kristaps 133: {
1.30 kristaps 134: struct html *h;
1.150 kristaps 135: const char *toks[5];
1.63 kristaps 136: char *v;
1.43 kristaps 137:
138: toks[0] = "style";
1.53 kristaps 139: toks[1] = "man";
1.54 kristaps 140: toks[2] = "includes";
1.150 kristaps 141: toks[3] = "fragment";
142: toks[4] = NULL;
1.30 kristaps 143:
1.128 kristaps 144: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 145:
1.66 kristaps 146: h->tags.head = NULL;
1.180 schwarze 147: h->symtab = mchars;
1.41 kristaps 148:
1.47 kristaps 149: while (outopts && *outopts)
1.63 kristaps 150: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 151: case 0:
1.43 kristaps 152: h->style = v;
153: break;
1.156 schwarze 154: case 1:
1.53 kristaps 155: h->base_man = v;
1.43 kristaps 156: break;
1.156 schwarze 157: case 2:
1.54 kristaps 158: h->base_includes = v;
1.150 kristaps 159: break;
1.156 schwarze 160: case 3:
1.150 kristaps 161: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 162: break;
1.43 kristaps 163: default:
164: break;
165: }
166:
1.30 kristaps 167: return(h);
1.29 kristaps 168: }
1.10 kristaps 169:
1.29 kristaps 170: void
171: html_free(void *p)
172: {
1.30 kristaps 173: struct tag *tag;
174: struct html *h;
175:
176: h = (struct html *)p;
1.37 kristaps 177:
1.66 kristaps 178: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 179: h->tags.head = tag->next;
1.30 kristaps 180: free(tag);
181: }
1.53 kristaps 182:
1.30 kristaps 183: free(h);
1.10 kristaps 184: }
1.2 kristaps 185:
1.51 kristaps 186: void
1.29 kristaps 187: print_gen_head(struct html *h)
188: {
1.41 kristaps 189: struct htmlpair tag[4];
1.165 kristaps 190: struct tag *t;
1.41 kristaps 191:
1.164 kristaps 192: tag[0].key = ATTR_CHARSET;
193: tag[0].val = "utf-8";
194: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 195:
1.168 kristaps 196: /*
197: * Print a default style-sheet.
198: */
1.165 kristaps 199: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 200: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 201: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 202: "td.head-vol { text-align: center; }\n"
203: "table.foot td { width: 50%; }\n"
1.171 kristaps 204: "table.head td { width: 33%; }\n"
205: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 206: print_tagq(h, t);
1.41 kristaps 207:
208: if (h->style) {
209: tag[0].key = ATTR_REL;
210: tag[0].val = "stylesheet";
211: tag[1].key = ATTR_HREF;
212: tag[1].val = h->style;
213: tag[2].key = ATTR_TYPE;
214: tag[2].val = "text/css";
215: tag[3].key = ATTR_MEDIA;
216: tag[3].val = "all";
217: print_otag(h, TAG_LINK, 4, tag);
218: }
1.4 kristaps 219: }
220:
1.126 schwarze 221: static void
1.132 kristaps 222: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 223: {
1.90 kristaps 224: enum htmlfont font;
1.88 kristaps 225:
226: switch (deco) {
1.156 schwarze 227: case ESCAPE_FONTPREV:
1.90 kristaps 228: font = h->metal;
1.88 kristaps 229: break;
1.156 schwarze 230: case ESCAPE_FONTITALIC:
1.90 kristaps 231: font = HTMLFONT_ITALIC;
232: break;
1.156 schwarze 233: case ESCAPE_FONTBOLD:
1.90 kristaps 234: font = HTMLFONT_BOLD;
1.88 kristaps 235: break;
1.156 schwarze 236: case ESCAPE_FONTBI:
1.152 schwarze 237: font = HTMLFONT_BI;
238: break;
1.156 schwarze 239: case ESCAPE_FONT:
1.145 kristaps 240: /* FALLTHROUGH */
1.156 schwarze 241: case ESCAPE_FONTROMAN:
1.90 kristaps 242: font = HTMLFONT_NONE;
1.88 kristaps 243: break;
244: default:
245: abort();
246: /* NOTREACHED */
247: }
248:
1.122 kristaps 249: if (h->metaf) {
250: print_tagq(h, h->metaf);
251: h->metaf = NULL;
252: }
253:
254: h->metal = h->metac;
255: h->metac = font;
256:
1.152 schwarze 257: switch (font) {
1.156 schwarze 258: case HTMLFONT_ITALIC:
1.152 schwarze 259: h->metaf = print_otag(h, TAG_I, 0, NULL);
260: break;
1.156 schwarze 261: case HTMLFONT_BOLD:
1.152 schwarze 262: h->metaf = print_otag(h, TAG_B, 0, NULL);
263: break;
1.156 schwarze 264: case HTMLFONT_BI:
1.152 schwarze 265: h->metaf = print_otag(h, TAG_B, 0, NULL);
266: print_otag(h, TAG_I, 0, NULL);
267: break;
268: default:
269: break;
270: }
1.88 kristaps 271: }
272:
1.138 kristaps 273: int
274: html_strlen(const char *cp)
275: {
1.151 schwarze 276: size_t rsz;
277: int skip, sz;
1.138 kristaps 278:
279: /*
280: * Account for escaped sequences within string length
281: * calculations. This follows the logic in term_strlen() as we
282: * must calculate the width of produced strings.
283: * Assume that characters are always width of "1". This is
284: * hacky, but it gets the job done for approximation of widths.
285: */
286:
287: sz = 0;
1.151 schwarze 288: skip = 0;
289: while (1) {
290: rsz = strcspn(cp, "\\");
291: if (rsz) {
292: cp += rsz;
293: if (skip) {
294: skip = 0;
295: rsz--;
296: }
297: sz += rsz;
298: }
299: if ('\0' == *cp)
300: break;
301: cp++;
302: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 303: case ESCAPE_ERROR:
1.138 kristaps 304: return(sz);
1.156 schwarze 305: case ESCAPE_UNICODE:
1.144 kristaps 306: /* FALLTHROUGH */
1.156 schwarze 307: case ESCAPE_NUMBERED:
1.139 kristaps 308: /* FALLTHROUGH */
1.156 schwarze 309: case ESCAPE_SPECIAL:
1.151 schwarze 310: if (skip)
311: skip = 0;
312: else
313: sz++;
314: break;
1.156 schwarze 315: case ESCAPE_SKIPCHAR:
1.151 schwarze 316: skip = 1;
1.138 kristaps 317: break;
318: default:
319: break;
320: }
321: }
1.151 schwarze 322: return(sz);
1.138 kristaps 323: }
1.88 kristaps 324:
1.85 kristaps 325: static int
1.159 schwarze 326: print_escape(char c)
327: {
328:
329: switch (c) {
330: case '<':
331: printf("<");
332: break;
333: case '>':
334: printf(">");
335: break;
336: case '&':
337: printf("&");
338: break;
339: case '"':
340: printf(""");
341: break;
342: case ASCII_NBRSP:
343: putchar('-');
344: break;
345: case ASCII_HYPH:
346: putchar('-');
347: /* FALLTHROUGH */
348: case ASCII_BREAK:
349: break;
350: default:
351: return(0);
352: }
353: return(1);
354: }
355:
356: static int
1.88 kristaps 357: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 358: {
1.77 kristaps 359: size_t sz;
1.141 kristaps 360: int c, len, nospace;
1.82 kristaps 361: const char *seq;
1.132 kristaps 362: enum mandoc_esc esc;
1.158 schwarze 363: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 364: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 365:
1.85 kristaps 366: nospace = 0;
367:
1.132 kristaps 368: while ('\0' != *p) {
1.151 schwarze 369: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
370: h->flags &= ~HTML_SKIPCHAR;
371: p++;
372: continue;
373: }
374:
1.100 kristaps 375: sz = strcspn(p, rejs);
1.77 kristaps 376:
377: fwrite(p, 1, sz, stdout);
1.132 kristaps 378: p += (int)sz;
1.77 kristaps 379:
1.132 kristaps 380: if ('\0' == *p)
381: break;
382:
1.159 schwarze 383: if (print_escape(*p++))
1.154 schwarze 384: continue;
1.77 kristaps 385:
1.132 kristaps 386: esc = mandoc_escape(&p, &seq, &len);
387: if (ESCAPE_ERROR == esc)
388: break;
1.82 kristaps 389:
1.132 kristaps 390: switch (esc) {
1.156 schwarze 391: case ESCAPE_FONT:
1.151 schwarze 392: /* FALLTHROUGH */
1.156 schwarze 393: case ESCAPE_FONTPREV:
1.151 schwarze 394: /* FALLTHROUGH */
1.156 schwarze 395: case ESCAPE_FONTBOLD:
1.151 schwarze 396: /* FALLTHROUGH */
1.156 schwarze 397: case ESCAPE_FONTITALIC:
1.151 schwarze 398: /* FALLTHROUGH */
1.156 schwarze 399: case ESCAPE_FONTBI:
1.152 schwarze 400: /* FALLTHROUGH */
1.156 schwarze 401: case ESCAPE_FONTROMAN:
1.151 schwarze 402: if (0 == norecurse)
403: print_metaf(h, esc);
404: continue;
1.156 schwarze 405: case ESCAPE_SKIPCHAR:
1.151 schwarze 406: h->flags |= HTML_SKIPCHAR;
407: continue;
408: default:
409: break;
410: }
411:
412: if (h->flags & HTML_SKIPCHAR) {
413: h->flags &= ~HTML_SKIPCHAR;
414: continue;
415: }
416:
417: switch (esc) {
1.156 schwarze 418: case ESCAPE_UNICODE:
1.159 schwarze 419: /* Skip past "u" header. */
1.144 kristaps 420: c = mchars_num2uc(seq + 1, len - 1);
421: break;
1.156 schwarze 422: case ESCAPE_NUMBERED:
1.141 kristaps 423: c = mchars_num2char(seq, len);
1.181 schwarze 424: if (c < 0)
425: continue;
1.82 kristaps 426: break;
1.156 schwarze 427: case ESCAPE_SPECIAL:
1.147 kristaps 428: c = mchars_spec2cp(h->symtab, seq, len);
1.181 schwarze 429: if (c <= 0)
430: continue;
1.132 kristaps 431: break;
1.156 schwarze 432: case ESCAPE_NOSPACE:
1.132 kristaps 433: if ('\0' == *p)
434: nospace = 1;
1.179 schwarze 435: continue;
1.82 kristaps 436: default:
1.179 schwarze 437: continue;
1.82 kristaps 438: }
1.181 schwarze 439: if ((c < 0x20 && c != 0x09) ||
440: (c > 0x7E && c < 0xA0))
1.179 schwarze 441: c = 0xFFFD;
442: if (c > 0x7E)
443: printf("&#%d;", c);
444: else if ( ! print_escape(c))
445: putchar(c);
1.32 kristaps 446: }
1.85 kristaps 447:
448: return(nospace);
1.14 kristaps 449: }
450:
1.94 kristaps 451: static void
452: print_attr(struct html *h, const char *key, const char *val)
453: {
454: printf(" %s=\"", key);
455: (void)print_encode(h, val, 1);
456: putchar('\"');
457: }
458:
1.51 kristaps 459: struct tag *
1.156 schwarze 460: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 461: int sz, const struct htmlpair *p)
1.14 kristaps 462: {
1.29 kristaps 463: int i;
1.30 kristaps 464: struct tag *t;
465:
1.94 kristaps 466: /* Push this tags onto the stack of open scopes. */
467:
1.30 kristaps 468: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 469: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 470: t->tag = tag;
1.66 kristaps 471: t->next = h->tags.head;
472: h->tags.head = t;
1.30 kristaps 473: } else
474: t = NULL;
1.29 kristaps 475:
476: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 477: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
478: /* Manage keeps! */
479: if ( ! (HTML_KEEP & h->flags)) {
480: if (HTML_PREKEEP & h->flags)
481: h->flags |= HTML_KEEP;
482: putchar(' ');
483: } else
484: printf(" ");
485: }
1.29 kristaps 486:
1.109 kristaps 487: if ( ! (h->flags & HTML_NONOSPACE))
488: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 489: else
490: h->flags |= HTML_NOSPACE;
1.109 kristaps 491:
1.94 kristaps 492: /* Print out the tag name and attributes. */
493:
1.29 kristaps 494: printf("<%s", htmltags[tag].name);
1.94 kristaps 495: for (i = 0; i < sz; i++)
496: print_attr(h, htmlattrs[p[i].key], p[i].val);
497:
1.172 kristaps 498: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 499:
1.93 kristaps 500: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 501: putchar('/');
1.93 kristaps 502:
1.78 kristaps 503: putchar('>');
1.14 kristaps 504:
1.29 kristaps 505: h->flags |= HTML_NOSPACE;
1.117 kristaps 506:
507: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
508: putchar('\n');
509:
1.30 kristaps 510: return(t);
1.14 kristaps 511: }
512:
1.29 kristaps 513: static void
514: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 515: {
1.156 schwarze 516:
1.29 kristaps 517: printf("</%s>", htmltags[tag].name);
1.71 kristaps 518: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 519: h->flags |= HTML_NOSPACE;
1.78 kristaps 520: putchar('\n');
1.156 schwarze 521: }
1.14 kristaps 522: }
523:
1.51 kristaps 524: void
1.93 kristaps 525: print_gen_decls(struct html *h)
1.1 kristaps 526: {
1.93 kristaps 527:
1.164 kristaps 528: puts("<!DOCTYPE html>");
1.1 kristaps 529: }
530:
1.51 kristaps 531: void
1.104 kristaps 532: print_text(struct html *h, const char *word)
1.1 kristaps 533: {
534:
1.105 kristaps 535: if ( ! (HTML_NOSPACE & h->flags)) {
536: /* Manage keeps! */
537: if ( ! (HTML_KEEP & h->flags)) {
538: if (HTML_PREKEEP & h->flags)
539: h->flags |= HTML_KEEP;
540: putchar(' ');
541: } else
542: printf(" ");
543: }
1.30 kristaps 544:
1.122 kristaps 545: assert(NULL == h->metaf);
1.152 schwarze 546: switch (h->metac) {
1.156 schwarze 547: case HTMLFONT_ITALIC:
1.152 schwarze 548: h->metaf = print_otag(h, TAG_I, 0, NULL);
549: break;
1.156 schwarze 550: case HTMLFONT_BOLD:
1.152 schwarze 551: h->metaf = print_otag(h, TAG_B, 0, NULL);
552: break;
1.156 schwarze 553: case HTMLFONT_BI:
1.152 schwarze 554: h->metaf = print_otag(h, TAG_B, 0, NULL);
555: print_otag(h, TAG_I, 0, NULL);
556: break;
557: default:
558: break;
559: }
1.122 kristaps 560:
1.104 kristaps 561: assert(word);
1.149 kristaps 562: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 563: if ( ! (h->flags & HTML_NONOSPACE))
564: h->flags &= ~HTML_NOSPACE;
1.183 ! schwarze 565: h->flags &= ~HTML_NONEWLINE;
1.149 kristaps 566: } else
1.183 ! schwarze 567: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.122 kristaps 568:
569: if (h->metaf) {
570: print_tagq(h, h->metaf);
571: h->metaf = NULL;
572: }
1.113 schwarze 573:
574: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 575: }
1.30 kristaps 576:
1.51 kristaps 577: void
1.30 kristaps 578: print_tagq(struct html *h, const struct tag *until)
579: {
580: struct tag *tag;
581:
1.66 kristaps 582: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 583: /*
1.125 kristaps 584: * Remember to close out and nullify the current
585: * meta-font and table, if applicable.
586: */
1.89 kristaps 587: if (tag == h->metaf)
588: h->metaf = NULL;
1.125 kristaps 589: if (tag == h->tblt)
590: h->tblt = NULL;
1.30 kristaps 591: print_ctag(h, tag->tag);
1.66 kristaps 592: h->tags.head = tag->next;
1.30 kristaps 593: free(tag);
594: if (until && tag == until)
595: return;
596: }
597: }
598:
1.51 kristaps 599: void
1.30 kristaps 600: print_stagq(struct html *h, const struct tag *suntil)
601: {
602: struct tag *tag;
603:
1.66 kristaps 604: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 605: if (suntil && tag == suntil)
606: return;
1.156 schwarze 607: /*
1.125 kristaps 608: * Remember to close out and nullify the current
609: * meta-font and table, if applicable.
610: */
1.89 kristaps 611: if (tag == h->metaf)
612: h->metaf = NULL;
1.125 kristaps 613: if (tag == h->tblt)
614: h->tblt = NULL;
1.30 kristaps 615: print_ctag(h, tag->tag);
1.66 kristaps 616: h->tags.head = tag->next;
1.30 kristaps 617: free(tag);
618: }
619: }
1.171 kristaps 620:
621: void
622: print_paragraph(struct html *h)
623: {
624: struct tag *t;
625: struct htmlpair tag;
626:
627: PAIR_CLASS_INIT(&tag, "spacer");
628: t = print_otag(h, TAG_DIV, 1, &tag);
629: print_tagq(h, t);
630: }
631:
1.55 kristaps 632:
633: void
634: bufinit(struct html *h)
635: {
636:
637: h->buf[0] = '\0';
638: h->buflen = 0;
639: }
640:
641: void
1.58 kristaps 642: bufcat_style(struct html *h, const char *key, const char *val)
643: {
644:
645: bufcat(h, key);
1.141 kristaps 646: bufcat(h, ":");
1.58 kristaps 647: bufcat(h, val);
1.141 kristaps 648: bufcat(h, ";");
1.58 kristaps 649: }
650:
651: void
1.55 kristaps 652: bufcat(struct html *h, const char *p)
653: {
1.157 schwarze 654:
655: /*
656: * XXX This is broken and not easy to fix.
657: * When using the -Oincludes option, buffmt_includes()
658: * may pass in strings overrunning BUFSIZ, causing a crash.
659: */
1.55 kristaps 660:
1.141 kristaps 661: h->buflen = strlcat(h->buf, p, BUFSIZ);
662: assert(h->buflen < BUFSIZ);
1.55 kristaps 663: }
664:
665: void
1.141 kristaps 666: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 667: {
668: va_list ap;
669:
670: va_start(ap, fmt);
1.156 schwarze 671: (void)vsnprintf(h->buf + (int)h->buflen,
672: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 673: va_end(ap);
674: h->buflen = strlen(h->buf);
675: }
676:
1.141 kristaps 677: static void
1.55 kristaps 678: bufncat(struct html *h, const char *p, size_t sz)
679: {
680:
1.141 kristaps 681: assert(h->buflen + sz + 1 < BUFSIZ);
682: strncat(h->buf, p, sz);
1.55 kristaps 683: h->buflen += sz;
684: }
685:
686: void
687: buffmt_includes(struct html *h, const char *name)
688: {
689: const char *p, *pp;
690:
691: pp = h->base_includes;
1.156 schwarze 692:
1.143 kristaps 693: bufinit(h);
1.61 kristaps 694: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 695: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 696: switch (*(p + 1)) {
1.156 schwarze 697: case'I':
1.55 kristaps 698: bufcat(h, name);
699: break;
700: default:
701: bufncat(h, p, 2);
702: break;
703: }
704: pp = p + 2;
705: }
706: if (pp)
707: bufcat(h, pp);
708: }
709:
710: void
1.156 schwarze 711: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 712: {
713: const char *p, *pp;
714:
715: pp = h->base_man;
1.156 schwarze 716:
1.143 kristaps 717: bufinit(h);
1.61 kristaps 718: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 719: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 720: switch (*(p + 1)) {
1.156 schwarze 721: case 'S':
1.58 kristaps 722: bufcat(h, sec ? sec : "1");
1.55 kristaps 723: break;
1.156 schwarze 724: case 'N':
1.153 joerg 725: bufcat_fmt(h, "%s", name);
1.55 kristaps 726: break;
727: default:
728: bufncat(h, p, 2);
729: break;
730: }
731: pp = p + 2;
732: }
733: if (pp)
734: bufcat(h, pp);
735: }
1.58 kristaps 736:
737: void
738: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
739: {
1.62 kristaps 740: double v;
1.58 kristaps 741:
742: v = su->scale;
1.140 kristaps 743: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
744: v = 1.0;
1.162 kristaps 745: else if (SCALE_BU == su->unit)
746: v /= 24.0;
1.58 kristaps 747:
1.141 kristaps 748: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 749: }
1.68 kristaps 750:
751: void
1.142 kristaps 752: bufcat_id(struct html *h, const char *src)
1.68 kristaps 753: {
754:
755: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
756:
1.142 kristaps 757: while ('\0' != *src)
758: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 759: }
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