Annotation of mandoc/html.c, Revision 1.181
1.181 ! schwarze 1: /* $Id: html.c,v 1.180 2014/10/28 17:36:19 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"
1.138 kristaps 33: #include "libmandoc.h"
1.58 kristaps 34: #include "out.h"
1.51 kristaps 35: #include "html.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);
125: static void print_ctag(struct html *, enum htmltag);
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 *
133: html_alloc(const struct mchars *mchars, char *outopts)
1.10 kristaps 134: {
1.30 kristaps 135: struct html *h;
1.150 kristaps 136: const char *toks[5];
1.63 kristaps 137: char *v;
1.43 kristaps 138:
139: toks[0] = "style";
1.53 kristaps 140: toks[1] = "man";
1.54 kristaps 141: toks[2] = "includes";
1.150 kristaps 142: toks[3] = "fragment";
143: toks[4] = NULL;
1.30 kristaps 144:
1.128 kristaps 145: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 146:
1.66 kristaps 147: h->tags.head = NULL;
1.180 schwarze 148: h->symtab = mchars;
1.41 kristaps 149:
1.47 kristaps 150: while (outopts && *outopts)
1.63 kristaps 151: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 152: case 0:
1.43 kristaps 153: h->style = v;
154: break;
1.156 schwarze 155: case 1:
1.53 kristaps 156: h->base_man = v;
1.43 kristaps 157: break;
1.156 schwarze 158: case 2:
1.54 kristaps 159: h->base_includes = v;
1.150 kristaps 160: break;
1.156 schwarze 161: case 3:
1.150 kristaps 162: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 163: break;
1.43 kristaps 164: default:
165: break;
166: }
167:
1.30 kristaps 168: return(h);
1.29 kristaps 169: }
1.10 kristaps 170:
1.29 kristaps 171: void
172: html_free(void *p)
173: {
1.30 kristaps 174: struct tag *tag;
175: struct html *h;
176:
177: h = (struct html *)p;
1.37 kristaps 178:
1.66 kristaps 179: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 180: h->tags.head = tag->next;
1.30 kristaps 181: free(tag);
182: }
1.53 kristaps 183:
1.30 kristaps 184: free(h);
1.10 kristaps 185: }
1.2 kristaps 186:
1.51 kristaps 187: void
1.29 kristaps 188: print_gen_head(struct html *h)
189: {
1.41 kristaps 190: struct htmlpair tag[4];
1.165 kristaps 191: struct tag *t;
1.41 kristaps 192:
1.164 kristaps 193: tag[0].key = ATTR_CHARSET;
194: tag[0].val = "utf-8";
195: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 196:
1.168 kristaps 197: /*
198: * Print a default style-sheet.
199: */
1.165 kristaps 200: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 201: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 202: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 203: "td.head-vol { text-align: center; }\n"
204: "table.foot td { width: 50%; }\n"
1.171 kristaps 205: "table.head td { width: 33%; }\n"
206: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 207: print_tagq(h, t);
1.41 kristaps 208:
209: if (h->style) {
210: tag[0].key = ATTR_REL;
211: tag[0].val = "stylesheet";
212: tag[1].key = ATTR_HREF;
213: tag[1].val = h->style;
214: tag[2].key = ATTR_TYPE;
215: tag[2].val = "text/css";
216: tag[3].key = ATTR_MEDIA;
217: tag[3].val = "all";
218: print_otag(h, TAG_LINK, 4, tag);
219: }
1.4 kristaps 220: }
221:
1.126 schwarze 222: static void
1.132 kristaps 223: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 224: {
1.90 kristaps 225: enum htmlfont font;
1.88 kristaps 226:
227: switch (deco) {
1.156 schwarze 228: case ESCAPE_FONTPREV:
1.90 kristaps 229: font = h->metal;
1.88 kristaps 230: break;
1.156 schwarze 231: case ESCAPE_FONTITALIC:
1.90 kristaps 232: font = HTMLFONT_ITALIC;
233: break;
1.156 schwarze 234: case ESCAPE_FONTBOLD:
1.90 kristaps 235: font = HTMLFONT_BOLD;
1.88 kristaps 236: break;
1.156 schwarze 237: case ESCAPE_FONTBI:
1.152 schwarze 238: font = HTMLFONT_BI;
239: break;
1.156 schwarze 240: case ESCAPE_FONT:
1.145 kristaps 241: /* FALLTHROUGH */
1.156 schwarze 242: case ESCAPE_FONTROMAN:
1.90 kristaps 243: font = HTMLFONT_NONE;
1.88 kristaps 244: break;
245: default:
246: abort();
247: /* NOTREACHED */
248: }
249:
1.122 kristaps 250: if (h->metaf) {
251: print_tagq(h, h->metaf);
252: h->metaf = NULL;
253: }
254:
255: h->metal = h->metac;
256: h->metac = font;
257:
1.152 schwarze 258: switch (font) {
1.156 schwarze 259: case HTMLFONT_ITALIC:
1.152 schwarze 260: h->metaf = print_otag(h, TAG_I, 0, NULL);
261: break;
1.156 schwarze 262: case HTMLFONT_BOLD:
1.152 schwarze 263: h->metaf = print_otag(h, TAG_B, 0, NULL);
264: break;
1.156 schwarze 265: case HTMLFONT_BI:
1.152 schwarze 266: h->metaf = print_otag(h, TAG_B, 0, NULL);
267: print_otag(h, TAG_I, 0, NULL);
268: break;
269: default:
270: break;
271: }
1.88 kristaps 272: }
273:
1.138 kristaps 274: int
275: html_strlen(const char *cp)
276: {
1.151 schwarze 277: size_t rsz;
278: int skip, sz;
1.138 kristaps 279:
280: /*
281: * Account for escaped sequences within string length
282: * calculations. This follows the logic in term_strlen() as we
283: * must calculate the width of produced strings.
284: * Assume that characters are always width of "1". This is
285: * hacky, but it gets the job done for approximation of widths.
286: */
287:
288: sz = 0;
1.151 schwarze 289: skip = 0;
290: while (1) {
291: rsz = strcspn(cp, "\\");
292: if (rsz) {
293: cp += rsz;
294: if (skip) {
295: skip = 0;
296: rsz--;
297: }
298: sz += rsz;
299: }
300: if ('\0' == *cp)
301: break;
302: cp++;
303: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 304: case ESCAPE_ERROR:
1.138 kristaps 305: return(sz);
1.156 schwarze 306: case ESCAPE_UNICODE:
1.144 kristaps 307: /* FALLTHROUGH */
1.156 schwarze 308: case ESCAPE_NUMBERED:
1.139 kristaps 309: /* FALLTHROUGH */
1.156 schwarze 310: case ESCAPE_SPECIAL:
1.151 schwarze 311: if (skip)
312: skip = 0;
313: else
314: sz++;
315: break;
1.156 schwarze 316: case ESCAPE_SKIPCHAR:
1.151 schwarze 317: skip = 1;
1.138 kristaps 318: break;
319: default:
320: break;
321: }
322: }
1.151 schwarze 323: return(sz);
1.138 kristaps 324: }
1.88 kristaps 325:
1.85 kristaps 326: static int
1.159 schwarze 327: print_escape(char c)
328: {
329:
330: switch (c) {
331: case '<':
332: printf("<");
333: break;
334: case '>':
335: printf(">");
336: break;
337: case '&':
338: printf("&");
339: break;
340: case '"':
341: printf(""");
342: break;
343: case ASCII_NBRSP:
344: putchar('-');
345: break;
346: case ASCII_HYPH:
347: putchar('-');
348: /* FALLTHROUGH */
349: case ASCII_BREAK:
350: break;
351: default:
352: return(0);
353: }
354: return(1);
355: }
356:
357: static int
1.88 kristaps 358: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 359: {
1.77 kristaps 360: size_t sz;
1.141 kristaps 361: int c, len, nospace;
1.82 kristaps 362: const char *seq;
1.132 kristaps 363: enum mandoc_esc esc;
1.158 schwarze 364: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 365: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 366:
1.85 kristaps 367: nospace = 0;
368:
1.132 kristaps 369: while ('\0' != *p) {
1.151 schwarze 370: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
371: h->flags &= ~HTML_SKIPCHAR;
372: p++;
373: continue;
374: }
375:
1.100 kristaps 376: sz = strcspn(p, rejs);
1.77 kristaps 377:
378: fwrite(p, 1, sz, stdout);
1.132 kristaps 379: p += (int)sz;
1.77 kristaps 380:
1.132 kristaps 381: if ('\0' == *p)
382: break;
383:
1.159 schwarze 384: if (print_escape(*p++))
1.154 schwarze 385: continue;
1.77 kristaps 386:
1.132 kristaps 387: esc = mandoc_escape(&p, &seq, &len);
388: if (ESCAPE_ERROR == esc)
389: break;
1.82 kristaps 390:
1.132 kristaps 391: switch (esc) {
1.156 schwarze 392: case ESCAPE_FONT:
1.151 schwarze 393: /* FALLTHROUGH */
1.156 schwarze 394: case ESCAPE_FONTPREV:
1.151 schwarze 395: /* FALLTHROUGH */
1.156 schwarze 396: case ESCAPE_FONTBOLD:
1.151 schwarze 397: /* FALLTHROUGH */
1.156 schwarze 398: case ESCAPE_FONTITALIC:
1.151 schwarze 399: /* FALLTHROUGH */
1.156 schwarze 400: case ESCAPE_FONTBI:
1.152 schwarze 401: /* FALLTHROUGH */
1.156 schwarze 402: case ESCAPE_FONTROMAN:
1.151 schwarze 403: if (0 == norecurse)
404: print_metaf(h, esc);
405: continue;
1.156 schwarze 406: case ESCAPE_SKIPCHAR:
1.151 schwarze 407: h->flags |= HTML_SKIPCHAR;
408: continue;
409: default:
410: break;
411: }
412:
413: if (h->flags & HTML_SKIPCHAR) {
414: h->flags &= ~HTML_SKIPCHAR;
415: continue;
416: }
417:
418: switch (esc) {
1.156 schwarze 419: case ESCAPE_UNICODE:
1.159 schwarze 420: /* Skip past "u" header. */
1.144 kristaps 421: c = mchars_num2uc(seq + 1, len - 1);
422: break;
1.156 schwarze 423: case ESCAPE_NUMBERED:
1.141 kristaps 424: c = mchars_num2char(seq, len);
1.181 ! schwarze 425: if (c < 0)
! 426: continue;
1.82 kristaps 427: break;
1.156 schwarze 428: case ESCAPE_SPECIAL:
1.147 kristaps 429: c = mchars_spec2cp(h->symtab, seq, len);
1.181 ! schwarze 430: if (c <= 0)
! 431: continue;
1.132 kristaps 432: break;
1.156 schwarze 433: case ESCAPE_NOSPACE:
1.132 kristaps 434: if ('\0' == *p)
435: nospace = 1;
1.179 schwarze 436: continue;
1.82 kristaps 437: default:
1.179 schwarze 438: continue;
1.82 kristaps 439: }
1.181 ! schwarze 440: if ((c < 0x20 && c != 0x09) ||
! 441: (c > 0x7E && c < 0xA0))
1.179 schwarze 442: c = 0xFFFD;
443: if (c > 0x7E)
444: printf("&#%d;", c);
445: else if ( ! print_escape(c))
446: putchar(c);
1.32 kristaps 447: }
1.85 kristaps 448:
449: return(nospace);
1.14 kristaps 450: }
451:
1.94 kristaps 452: static void
453: print_attr(struct html *h, const char *key, const char *val)
454: {
455: printf(" %s=\"", key);
456: (void)print_encode(h, val, 1);
457: putchar('\"');
458: }
459:
1.51 kristaps 460: struct tag *
1.156 schwarze 461: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 462: int sz, const struct htmlpair *p)
1.14 kristaps 463: {
1.29 kristaps 464: int i;
1.30 kristaps 465: struct tag *t;
466:
1.94 kristaps 467: /* Push this tags onto the stack of open scopes. */
468:
1.30 kristaps 469: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 470: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 471: t->tag = tag;
1.66 kristaps 472: t->next = h->tags.head;
473: h->tags.head = t;
1.30 kristaps 474: } else
475: t = NULL;
1.29 kristaps 476:
477: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 478: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
479: /* Manage keeps! */
480: if ( ! (HTML_KEEP & h->flags)) {
481: if (HTML_PREKEEP & h->flags)
482: h->flags |= HTML_KEEP;
483: putchar(' ');
484: } else
485: printf(" ");
486: }
1.29 kristaps 487:
1.109 kristaps 488: if ( ! (h->flags & HTML_NONOSPACE))
489: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 490: else
491: h->flags |= HTML_NOSPACE;
1.109 kristaps 492:
1.94 kristaps 493: /* Print out the tag name and attributes. */
494:
1.29 kristaps 495: printf("<%s", htmltags[tag].name);
1.94 kristaps 496: for (i = 0; i < sz; i++)
497: print_attr(h, htmlattrs[p[i].key], p[i].val);
498:
1.172 kristaps 499: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 500:
1.93 kristaps 501: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 502: putchar('/');
1.93 kristaps 503:
1.78 kristaps 504: putchar('>');
1.14 kristaps 505:
1.29 kristaps 506: h->flags |= HTML_NOSPACE;
1.117 kristaps 507:
508: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
509: putchar('\n');
510:
1.30 kristaps 511: return(t);
1.14 kristaps 512: }
513:
1.29 kristaps 514: static void
515: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 516: {
1.156 schwarze 517:
1.29 kristaps 518: printf("</%s>", htmltags[tag].name);
1.71 kristaps 519: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 520: h->flags |= HTML_NOSPACE;
1.78 kristaps 521: putchar('\n');
1.156 schwarze 522: }
1.14 kristaps 523: }
524:
1.51 kristaps 525: void
1.93 kristaps 526: print_gen_decls(struct html *h)
1.1 kristaps 527: {
1.93 kristaps 528:
1.164 kristaps 529: puts("<!DOCTYPE html>");
1.1 kristaps 530: }
531:
1.51 kristaps 532: void
1.104 kristaps 533: print_text(struct html *h, const char *word)
1.1 kristaps 534: {
535:
1.105 kristaps 536: if ( ! (HTML_NOSPACE & h->flags)) {
537: /* Manage keeps! */
538: if ( ! (HTML_KEEP & h->flags)) {
539: if (HTML_PREKEEP & h->flags)
540: h->flags |= HTML_KEEP;
541: putchar(' ');
542: } else
543: printf(" ");
544: }
1.30 kristaps 545:
1.122 kristaps 546: assert(NULL == h->metaf);
1.152 schwarze 547: switch (h->metac) {
1.156 schwarze 548: case HTMLFONT_ITALIC:
1.152 schwarze 549: h->metaf = print_otag(h, TAG_I, 0, NULL);
550: break;
1.156 schwarze 551: case HTMLFONT_BOLD:
1.152 schwarze 552: h->metaf = print_otag(h, TAG_B, 0, NULL);
553: break;
1.156 schwarze 554: case HTMLFONT_BI:
1.152 schwarze 555: h->metaf = print_otag(h, TAG_B, 0, NULL);
556: print_otag(h, TAG_I, 0, NULL);
557: break;
558: default:
559: break;
560: }
1.122 kristaps 561:
1.104 kristaps 562: assert(word);
1.149 kristaps 563: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 564: if ( ! (h->flags & HTML_NONOSPACE))
565: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 566: } else
567: h->flags |= HTML_NOSPACE;
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: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to html.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc