Annotation of mandoc/html.c, Revision 1.188
1.188 ! schwarze 1: /* $Id: html.c,v 1.187 2015/09/26 00:54:03 schwarze Exp $ */
1.1 kristaps 2: /*
1.176 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.185 schwarze 4: * Copyright (c) 2011-2015 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: *
1.186 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.29 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.186 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.29 kristaps 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"
1.186 schwarze 35: #include "manconf.h"
1.64 kristaps 36: #include "main.h"
1.63 kristaps 37:
1.29 kristaps 38: struct htmldata {
1.63 kristaps 39: const char *name;
1.29 kristaps 40: int flags;
1.30 kristaps 41: #define HTML_CLRLINE (1 << 0)
42: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 43: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 44: };
1.7 kristaps 45:
1.29 kristaps 46: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 47: {"html", HTML_CLRLINE}, /* TAG_HTML */
48: {"head", HTML_CLRLINE}, /* TAG_HEAD */
49: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 50: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 51: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 52: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 53: {"h1", 0}, /* TAG_H1 */
54: {"h2", 0}, /* TAG_H2 */
55: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 56: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 57: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 58: {"a", 0}, /* TAG_A */
1.33 kristaps 59: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 60: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 61: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 62: {"tr", HTML_CLRLINE}, /* TAG_TR */
63: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 64: {"li", HTML_CLRLINE}, /* TAG_LI */
65: {"ul", HTML_CLRLINE}, /* TAG_UL */
66: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 67: {"dl", HTML_CLRLINE}, /* TAG_DL */
68: {"dt", HTML_CLRLINE}, /* TAG_DT */
69: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 70: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.118 kristaps 71: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 72: {"b", 0 }, /* TAG_B */
1.120 kristaps 73: {"i", 0 }, /* TAG_I */
1.121 kristaps 74: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 75: {"small", 0 }, /* TAG_SMALL */
1.165 kristaps 76: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.173 kristaps 77: {"math", HTML_CLRLINE}, /* TAG_MATH */
78: {"mrow", 0}, /* TAG_MROW */
79: {"mi", 0}, /* TAG_MI */
80: {"mo", 0}, /* TAG_MO */
81: {"msup", 0}, /* TAG_MSUP */
82: {"msub", 0}, /* TAG_MSUB */
83: {"msubsup", 0}, /* TAG_MSUBSUP */
84: {"mfrac", 0}, /* TAG_MFRAC */
85: {"msqrt", 0}, /* TAG_MSQRT */
86: {"mfenced", 0}, /* TAG_MFENCED */
87: {"mtable", 0}, /* TAG_MTABLE */
88: {"mtr", 0}, /* TAG_MTR */
89: {"mtd", 0}, /* TAG_MTD */
1.174 kristaps 90: {"munderover", 0}, /* TAG_MUNDEROVER */
91: {"munder", 0}, /* TAG_MUNDER*/
92: {"mover", 0}, /* TAG_MOVER*/
1.90 kristaps 93: };
94:
1.82 kristaps 95: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 96: "name", /* ATTR_NAME */
97: "rel", /* ATTR_REL */
98: "href", /* ATTR_HREF */
99: "type", /* ATTR_TYPE */
100: "media", /* ATTR_MEDIA */
101: "class", /* ATTR_CLASS */
102: "style", /* ATTR_STYLE */
103: "id", /* ATTR_ID */
1.125 kristaps 104: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 105: "charset", /* ATTR_CHARSET */
1.173 kristaps 106: "open", /* ATTR_OPEN */
107: "close", /* ATTR_CLOSE */
1.175 kristaps 108: "mathvariant", /* ATTR_MATHVARIANT */
1.29 kristaps 109: };
1.10 kristaps 110:
1.140 kristaps 111: static const char *const roffscales[SCALE_MAX] = {
112: "cm", /* SCALE_CM */
113: "in", /* SCALE_IN */
114: "pc", /* SCALE_PC */
115: "pt", /* SCALE_PT */
116: "em", /* SCALE_EM */
117: "em", /* SCALE_MM */
118: "ex", /* SCALE_EN */
119: "ex", /* SCALE_BU */
120: "em", /* SCALE_VS */
121: "ex", /* SCALE_FS */
122: };
123:
1.141 kristaps 124: static void bufncat(struct html *, const char *, size_t);
1.184 schwarze 125: static void print_ctag(struct html *, struct tag *);
1.159 schwarze 126: static int print_escape(char);
1.141 kristaps 127: static int print_encode(struct html *, const char *, int);
128: static void print_metaf(struct html *, enum mandoc_esc);
129: static void print_attr(struct html *, const char *, const char *);
1.82 kristaps 130:
1.156 schwarze 131:
1.180 schwarze 132: void *
1.186 schwarze 133: html_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.10 kristaps 134: {
1.30 kristaps 135: struct html *h;
136:
1.128 kristaps 137: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 138:
1.66 kristaps 139: h->tags.head = NULL;
1.180 schwarze 140: h->symtab = mchars;
1.41 kristaps 141:
1.186 schwarze 142: h->style = outopts->style;
143: h->base_man = outopts->man;
144: h->base_includes = outopts->includes;
145: if (outopts->fragment)
146: h->oflags |= HTML_FRAGMENT;
1.43 kristaps 147:
1.188 ! schwarze 148: return h;
1.29 kristaps 149: }
1.10 kristaps 150:
1.29 kristaps 151: void
152: html_free(void *p)
153: {
1.30 kristaps 154: struct tag *tag;
155: struct html *h;
156:
157: h = (struct html *)p;
1.37 kristaps 158:
1.66 kristaps 159: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 160: h->tags.head = tag->next;
1.30 kristaps 161: free(tag);
162: }
1.53 kristaps 163:
1.30 kristaps 164: free(h);
1.10 kristaps 165: }
1.2 kristaps 166:
1.51 kristaps 167: void
1.29 kristaps 168: print_gen_head(struct html *h)
169: {
1.41 kristaps 170: struct htmlpair tag[4];
1.165 kristaps 171: struct tag *t;
1.41 kristaps 172:
1.164 kristaps 173: tag[0].key = ATTR_CHARSET;
174: tag[0].val = "utf-8";
175: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 176:
1.168 kristaps 177: /*
178: * Print a default style-sheet.
179: */
1.165 kristaps 180: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 181: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 182: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 183: "td.head-vol { text-align: center; }\n"
184: "table.foot td { width: 50%; }\n"
1.171 kristaps 185: "table.head td { width: 33%; }\n"
186: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 187: print_tagq(h, t);
1.41 kristaps 188:
189: if (h->style) {
190: tag[0].key = ATTR_REL;
191: tag[0].val = "stylesheet";
192: tag[1].key = ATTR_HREF;
193: tag[1].val = h->style;
194: tag[2].key = ATTR_TYPE;
195: tag[2].val = "text/css";
196: tag[3].key = ATTR_MEDIA;
197: tag[3].val = "all";
198: print_otag(h, TAG_LINK, 4, tag);
199: }
1.4 kristaps 200: }
201:
1.126 schwarze 202: static void
1.132 kristaps 203: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 204: {
1.90 kristaps 205: enum htmlfont font;
1.88 kristaps 206:
207: switch (deco) {
1.156 schwarze 208: case ESCAPE_FONTPREV:
1.90 kristaps 209: font = h->metal;
1.88 kristaps 210: break;
1.156 schwarze 211: case ESCAPE_FONTITALIC:
1.90 kristaps 212: font = HTMLFONT_ITALIC;
213: break;
1.156 schwarze 214: case ESCAPE_FONTBOLD:
1.90 kristaps 215: font = HTMLFONT_BOLD;
1.88 kristaps 216: break;
1.156 schwarze 217: case ESCAPE_FONTBI:
1.152 schwarze 218: font = HTMLFONT_BI;
219: break;
1.156 schwarze 220: case ESCAPE_FONT:
1.145 kristaps 221: /* FALLTHROUGH */
1.156 schwarze 222: case ESCAPE_FONTROMAN:
1.90 kristaps 223: font = HTMLFONT_NONE;
1.88 kristaps 224: break;
225: default:
226: abort();
227: }
228:
1.122 kristaps 229: if (h->metaf) {
230: print_tagq(h, h->metaf);
231: h->metaf = NULL;
232: }
233:
234: h->metal = h->metac;
235: h->metac = font;
236:
1.152 schwarze 237: switch (font) {
1.156 schwarze 238: case HTMLFONT_ITALIC:
1.152 schwarze 239: h->metaf = print_otag(h, TAG_I, 0, NULL);
240: break;
1.156 schwarze 241: case HTMLFONT_BOLD:
1.152 schwarze 242: h->metaf = print_otag(h, TAG_B, 0, NULL);
243: break;
1.156 schwarze 244: case HTMLFONT_BI:
1.152 schwarze 245: h->metaf = print_otag(h, TAG_B, 0, NULL);
246: print_otag(h, TAG_I, 0, NULL);
247: break;
248: default:
249: break;
250: }
1.88 kristaps 251: }
252:
1.138 kristaps 253: int
254: html_strlen(const char *cp)
255: {
1.151 schwarze 256: size_t rsz;
257: int skip, sz;
1.138 kristaps 258:
259: /*
260: * Account for escaped sequences within string length
261: * calculations. This follows the logic in term_strlen() as we
262: * must calculate the width of produced strings.
263: * Assume that characters are always width of "1". This is
264: * hacky, but it gets the job done for approximation of widths.
265: */
266:
267: sz = 0;
1.151 schwarze 268: skip = 0;
269: while (1) {
270: rsz = strcspn(cp, "\\");
271: if (rsz) {
272: cp += rsz;
273: if (skip) {
274: skip = 0;
275: rsz--;
276: }
277: sz += rsz;
278: }
279: if ('\0' == *cp)
280: break;
281: cp++;
282: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 283: case ESCAPE_ERROR:
1.188 ! schwarze 284: return sz;
1.156 schwarze 285: case ESCAPE_UNICODE:
1.144 kristaps 286: /* FALLTHROUGH */
1.156 schwarze 287: case ESCAPE_NUMBERED:
1.139 kristaps 288: /* FALLTHROUGH */
1.156 schwarze 289: case ESCAPE_SPECIAL:
1.185 schwarze 290: /* FALLTHROUGH */
291: case ESCAPE_OVERSTRIKE:
1.151 schwarze 292: if (skip)
293: skip = 0;
294: else
295: sz++;
296: break;
1.156 schwarze 297: case ESCAPE_SKIPCHAR:
1.151 schwarze 298: skip = 1;
1.138 kristaps 299: break;
300: default:
301: break;
302: }
303: }
1.188 ! schwarze 304: return sz;
1.138 kristaps 305: }
1.88 kristaps 306:
1.85 kristaps 307: static int
1.159 schwarze 308: print_escape(char c)
309: {
310:
311: switch (c) {
312: case '<':
313: printf("<");
314: break;
315: case '>':
316: printf(">");
317: break;
318: case '&':
319: printf("&");
320: break;
321: case '"':
322: printf(""");
323: break;
324: case ASCII_NBRSP:
325: putchar('-');
326: break;
327: case ASCII_HYPH:
328: putchar('-');
329: /* FALLTHROUGH */
330: case ASCII_BREAK:
331: break;
332: default:
1.188 ! schwarze 333: return 0;
1.159 schwarze 334: }
1.188 ! schwarze 335: return 1;
1.159 schwarze 336: }
337:
338: static int
1.88 kristaps 339: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 340: {
1.77 kristaps 341: size_t sz;
1.141 kristaps 342: int c, len, nospace;
1.82 kristaps 343: const char *seq;
1.132 kristaps 344: enum mandoc_esc esc;
1.158 schwarze 345: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 346: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 347:
1.85 kristaps 348: nospace = 0;
349:
1.132 kristaps 350: while ('\0' != *p) {
1.151 schwarze 351: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
352: h->flags &= ~HTML_SKIPCHAR;
353: p++;
354: continue;
355: }
356:
1.100 kristaps 357: sz = strcspn(p, rejs);
1.77 kristaps 358:
359: fwrite(p, 1, sz, stdout);
1.132 kristaps 360: p += (int)sz;
1.77 kristaps 361:
1.132 kristaps 362: if ('\0' == *p)
363: break;
364:
1.159 schwarze 365: if (print_escape(*p++))
1.154 schwarze 366: continue;
1.77 kristaps 367:
1.132 kristaps 368: esc = mandoc_escape(&p, &seq, &len);
369: if (ESCAPE_ERROR == esc)
370: break;
1.82 kristaps 371:
1.132 kristaps 372: switch (esc) {
1.156 schwarze 373: case ESCAPE_FONT:
1.151 schwarze 374: /* FALLTHROUGH */
1.156 schwarze 375: case ESCAPE_FONTPREV:
1.151 schwarze 376: /* FALLTHROUGH */
1.156 schwarze 377: case ESCAPE_FONTBOLD:
1.151 schwarze 378: /* FALLTHROUGH */
1.156 schwarze 379: case ESCAPE_FONTITALIC:
1.151 schwarze 380: /* FALLTHROUGH */
1.156 schwarze 381: case ESCAPE_FONTBI:
1.152 schwarze 382: /* FALLTHROUGH */
1.156 schwarze 383: case ESCAPE_FONTROMAN:
1.151 schwarze 384: if (0 == norecurse)
385: print_metaf(h, esc);
386: continue;
1.156 schwarze 387: case ESCAPE_SKIPCHAR:
1.151 schwarze 388: h->flags |= HTML_SKIPCHAR;
389: continue;
390: default:
391: break;
392: }
393:
394: if (h->flags & HTML_SKIPCHAR) {
395: h->flags &= ~HTML_SKIPCHAR;
396: continue;
397: }
398:
399: switch (esc) {
1.156 schwarze 400: case ESCAPE_UNICODE:
1.159 schwarze 401: /* Skip past "u" header. */
1.144 kristaps 402: c = mchars_num2uc(seq + 1, len - 1);
403: break;
1.156 schwarze 404: case ESCAPE_NUMBERED:
1.141 kristaps 405: c = mchars_num2char(seq, len);
1.181 schwarze 406: if (c < 0)
407: continue;
1.82 kristaps 408: break;
1.156 schwarze 409: case ESCAPE_SPECIAL:
1.147 kristaps 410: c = mchars_spec2cp(h->symtab, seq, len);
1.181 schwarze 411: if (c <= 0)
412: continue;
1.132 kristaps 413: break;
1.156 schwarze 414: case ESCAPE_NOSPACE:
1.132 kristaps 415: if ('\0' == *p)
416: nospace = 1;
1.179 schwarze 417: continue;
1.185 schwarze 418: case ESCAPE_OVERSTRIKE:
419: if (len == 0)
420: continue;
421: c = seq[len - 1];
422: break;
1.82 kristaps 423: default:
1.179 schwarze 424: continue;
1.82 kristaps 425: }
1.181 schwarze 426: if ((c < 0x20 && c != 0x09) ||
427: (c > 0x7E && c < 0xA0))
1.179 schwarze 428: c = 0xFFFD;
429: if (c > 0x7E)
430: printf("&#%d;", c);
431: else if ( ! print_escape(c))
432: putchar(c);
1.32 kristaps 433: }
1.85 kristaps 434:
1.188 ! schwarze 435: return nospace;
1.14 kristaps 436: }
437:
1.94 kristaps 438: static void
439: print_attr(struct html *h, const char *key, const char *val)
440: {
441: printf(" %s=\"", key);
442: (void)print_encode(h, val, 1);
443: putchar('\"');
444: }
445:
1.51 kristaps 446: struct tag *
1.156 schwarze 447: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 448: int sz, const struct htmlpair *p)
1.14 kristaps 449: {
1.29 kristaps 450: int i;
1.30 kristaps 451: struct tag *t;
452:
1.94 kristaps 453: /* Push this tags onto the stack of open scopes. */
454:
1.30 kristaps 455: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 456: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 457: t->tag = tag;
1.66 kristaps 458: t->next = h->tags.head;
459: h->tags.head = t;
1.30 kristaps 460: } else
461: t = NULL;
1.29 kristaps 462:
463: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 464: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
465: /* Manage keeps! */
466: if ( ! (HTML_KEEP & h->flags)) {
467: if (HTML_PREKEEP & h->flags)
468: h->flags |= HTML_KEEP;
469: putchar(' ');
470: } else
471: printf(" ");
472: }
1.29 kristaps 473:
1.109 kristaps 474: if ( ! (h->flags & HTML_NONOSPACE))
475: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 476: else
477: h->flags |= HTML_NOSPACE;
1.109 kristaps 478:
1.94 kristaps 479: /* Print out the tag name and attributes. */
480:
1.29 kristaps 481: printf("<%s", htmltags[tag].name);
1.94 kristaps 482: for (i = 0; i < sz; i++)
483: print_attr(h, htmlattrs[p[i].key], p[i].val);
484:
1.172 kristaps 485: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 486:
1.93 kristaps 487: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 488: putchar('/');
1.93 kristaps 489:
1.78 kristaps 490: putchar('>');
1.14 kristaps 491:
1.29 kristaps 492: h->flags |= HTML_NOSPACE;
1.117 kristaps 493:
494: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
495: putchar('\n');
496:
1.188 ! schwarze 497: return t;
1.14 kristaps 498: }
499:
1.29 kristaps 500: static void
1.184 schwarze 501: print_ctag(struct html *h, struct tag *tag)
1.14 kristaps 502: {
1.156 schwarze 503:
1.184 schwarze 504: /*
505: * Remember to close out and nullify the current
506: * meta-font and table, if applicable.
507: */
508: if (tag == h->metaf)
509: h->metaf = NULL;
510: if (tag == h->tblt)
511: h->tblt = NULL;
512:
513: printf("</%s>", htmltags[tag->tag].name);
514: if (HTML_CLRLINE & htmltags[tag->tag].flags) {
1.29 kristaps 515: h->flags |= HTML_NOSPACE;
1.78 kristaps 516: putchar('\n');
1.156 schwarze 517: }
1.184 schwarze 518:
519: h->tags.head = tag->next;
520: free(tag);
1.14 kristaps 521: }
522:
1.51 kristaps 523: void
1.93 kristaps 524: print_gen_decls(struct html *h)
1.1 kristaps 525: {
1.93 kristaps 526:
1.164 kristaps 527: puts("<!DOCTYPE html>");
1.1 kristaps 528: }
529:
1.51 kristaps 530: void
1.104 kristaps 531: print_text(struct html *h, const char *word)
1.1 kristaps 532: {
533:
1.105 kristaps 534: if ( ! (HTML_NOSPACE & h->flags)) {
535: /* Manage keeps! */
536: if ( ! (HTML_KEEP & h->flags)) {
537: if (HTML_PREKEEP & h->flags)
538: h->flags |= HTML_KEEP;
539: putchar(' ');
540: } else
541: printf(" ");
542: }
1.30 kristaps 543:
1.122 kristaps 544: assert(NULL == h->metaf);
1.152 schwarze 545: switch (h->metac) {
1.156 schwarze 546: case HTMLFONT_ITALIC:
1.152 schwarze 547: h->metaf = print_otag(h, TAG_I, 0, NULL);
548: break;
1.156 schwarze 549: case HTMLFONT_BOLD:
1.152 schwarze 550: h->metaf = print_otag(h, TAG_B, 0, NULL);
551: break;
1.156 schwarze 552: case HTMLFONT_BI:
1.152 schwarze 553: h->metaf = print_otag(h, TAG_B, 0, NULL);
554: print_otag(h, TAG_I, 0, NULL);
555: break;
556: default:
557: break;
558: }
1.122 kristaps 559:
1.104 kristaps 560: assert(word);
1.149 kristaps 561: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 562: if ( ! (h->flags & HTML_NONOSPACE))
563: h->flags &= ~HTML_NOSPACE;
1.183 schwarze 564: h->flags &= ~HTML_NONEWLINE;
1.149 kristaps 565: } else
1.183 schwarze 566: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.122 kristaps 567:
568: if (h->metaf) {
569: print_tagq(h, h->metaf);
570: h->metaf = NULL;
571: }
1.113 schwarze 572:
573: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 574: }
1.30 kristaps 575:
1.51 kristaps 576: void
1.30 kristaps 577: print_tagq(struct html *h, const struct tag *until)
578: {
579: struct tag *tag;
580:
1.66 kristaps 581: while ((tag = h->tags.head) != NULL) {
1.184 schwarze 582: print_ctag(h, tag);
1.30 kristaps 583: if (until && tag == until)
584: return;
585: }
586: }
587:
1.51 kristaps 588: void
1.30 kristaps 589: print_stagq(struct html *h, const struct tag *suntil)
590: {
591: struct tag *tag;
592:
1.66 kristaps 593: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 594: if (suntil && tag == suntil)
595: return;
1.184 schwarze 596: print_ctag(h, tag);
1.30 kristaps 597: }
598: }
1.171 kristaps 599:
600: void
601: print_paragraph(struct html *h)
602: {
603: struct tag *t;
604: struct htmlpair tag;
605:
606: PAIR_CLASS_INIT(&tag, "spacer");
607: t = print_otag(h, TAG_DIV, 1, &tag);
608: print_tagq(h, t);
609: }
610:
1.55 kristaps 611:
612: void
613: bufinit(struct html *h)
614: {
615:
616: h->buf[0] = '\0';
617: h->buflen = 0;
618: }
619:
620: void
1.58 kristaps 621: bufcat_style(struct html *h, const char *key, const char *val)
622: {
623:
624: bufcat(h, key);
1.141 kristaps 625: bufcat(h, ":");
1.58 kristaps 626: bufcat(h, val);
1.141 kristaps 627: bufcat(h, ";");
1.58 kristaps 628: }
629:
630: void
1.55 kristaps 631: bufcat(struct html *h, const char *p)
632: {
1.157 schwarze 633:
634: /*
635: * XXX This is broken and not easy to fix.
636: * When using the -Oincludes option, buffmt_includes()
637: * may pass in strings overrunning BUFSIZ, causing a crash.
638: */
1.55 kristaps 639:
1.141 kristaps 640: h->buflen = strlcat(h->buf, p, BUFSIZ);
641: assert(h->buflen < BUFSIZ);
1.55 kristaps 642: }
643:
644: void
1.141 kristaps 645: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 646: {
647: va_list ap;
648:
649: va_start(ap, fmt);
1.156 schwarze 650: (void)vsnprintf(h->buf + (int)h->buflen,
651: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 652: va_end(ap);
653: h->buflen = strlen(h->buf);
654: }
655:
1.141 kristaps 656: static void
1.55 kristaps 657: bufncat(struct html *h, const char *p, size_t sz)
658: {
659:
1.141 kristaps 660: assert(h->buflen + sz + 1 < BUFSIZ);
661: strncat(h->buf, p, sz);
1.55 kristaps 662: h->buflen += sz;
663: }
664:
665: void
666: buffmt_includes(struct html *h, const char *name)
667: {
668: const char *p, *pp;
669:
670: pp = h->base_includes;
1.156 schwarze 671:
1.143 kristaps 672: bufinit(h);
1.61 kristaps 673: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 674: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 675: switch (*(p + 1)) {
1.156 schwarze 676: case'I':
1.55 kristaps 677: bufcat(h, name);
678: break;
679: default:
680: bufncat(h, p, 2);
681: break;
682: }
683: pp = p + 2;
684: }
685: if (pp)
686: bufcat(h, pp);
687: }
688:
689: void
1.156 schwarze 690: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 691: {
692: const char *p, *pp;
693:
694: pp = h->base_man;
1.156 schwarze 695:
1.143 kristaps 696: bufinit(h);
1.61 kristaps 697: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 698: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 699: switch (*(p + 1)) {
1.156 schwarze 700: case 'S':
1.58 kristaps 701: bufcat(h, sec ? sec : "1");
1.55 kristaps 702: break;
1.156 schwarze 703: case 'N':
1.153 joerg 704: bufcat_fmt(h, "%s", name);
1.55 kristaps 705: break;
706: default:
707: bufncat(h, p, 2);
708: break;
709: }
710: pp = p + 2;
711: }
712: if (pp)
713: bufcat(h, pp);
714: }
1.58 kristaps 715:
716: void
717: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
718: {
1.62 kristaps 719: double v;
1.58 kristaps 720:
721: v = su->scale;
1.140 kristaps 722: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
723: v = 1.0;
1.162 kristaps 724: else if (SCALE_BU == su->unit)
725: v /= 24.0;
1.58 kristaps 726:
1.141 kristaps 727: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 728: }
1.68 kristaps 729:
730: void
1.142 kristaps 731: bufcat_id(struct html *h, const char *src)
1.68 kristaps 732: {
733:
734: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
735:
1.142 kristaps 736: while ('\0' != *src)
737: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 738: }
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