Annotation of mandoc/html.c, Revision 1.174
1.174 ! kristaps 1: /* $Id: html.c,v 1.173 2014/09/28 11:33:15 kristaps Exp $ */
1.1 kristaps 2: /*
1.172 kristaps 3: * Copyright (c) 2008, 2009, 2010, 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 */
1.29 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 *);
1.172 kristaps 129: static void *ml_alloc(char *);
1.82 kristaps 130:
1.156 schwarze 131:
1.93 kristaps 132: static void *
1.172 kristaps 133: ml_alloc(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;
1.136 kristaps 148: h->symtab = mchars_alloc();
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:
1.93 kristaps 171: void *
172: html_alloc(char *outopts)
173: {
174:
1.172 kristaps 175: return(ml_alloc(outopts));
1.93 kristaps 176: }
177:
178: void *
179: xhtml_alloc(char *outopts)
180: {
181:
1.172 kristaps 182: return(ml_alloc(outopts));
1.93 kristaps 183: }
184:
1.29 kristaps 185: void
186: html_free(void *p)
187: {
1.30 kristaps 188: struct tag *tag;
189: struct html *h;
190:
191: h = (struct html *)p;
1.37 kristaps 192:
1.66 kristaps 193: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 194: h->tags.head = tag->next;
1.30 kristaps 195: free(tag);
196: }
1.156 schwarze 197:
1.36 kristaps 198: if (h->symtab)
1.133 kristaps 199: mchars_free(h->symtab);
1.53 kristaps 200:
1.30 kristaps 201: free(h);
1.10 kristaps 202: }
1.2 kristaps 203:
1.51 kristaps 204: void
1.29 kristaps 205: print_gen_head(struct html *h)
206: {
1.41 kristaps 207: struct htmlpair tag[4];
1.165 kristaps 208: struct tag *t;
1.41 kristaps 209:
1.164 kristaps 210: tag[0].key = ATTR_CHARSET;
211: tag[0].val = "utf-8";
212: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 213:
1.168 kristaps 214: /*
215: * Print a default style-sheet.
216: */
1.165 kristaps 217: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 218: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 219: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 220: "td.head-vol { text-align: center; }\n"
221: "table.foot td { width: 50%; }\n"
1.171 kristaps 222: "table.head td { width: 33%; }\n"
223: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 224: print_tagq(h, t);
1.41 kristaps 225:
226: if (h->style) {
227: tag[0].key = ATTR_REL;
228: tag[0].val = "stylesheet";
229: tag[1].key = ATTR_HREF;
230: tag[1].val = h->style;
231: tag[2].key = ATTR_TYPE;
232: tag[2].val = "text/css";
233: tag[3].key = ATTR_MEDIA;
234: tag[3].val = "all";
235: print_otag(h, TAG_LINK, 4, tag);
236: }
1.4 kristaps 237: }
238:
1.126 schwarze 239: static void
1.132 kristaps 240: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 241: {
1.90 kristaps 242: enum htmlfont font;
1.88 kristaps 243:
244: switch (deco) {
1.156 schwarze 245: case ESCAPE_FONTPREV:
1.90 kristaps 246: font = h->metal;
1.88 kristaps 247: break;
1.156 schwarze 248: case ESCAPE_FONTITALIC:
1.90 kristaps 249: font = HTMLFONT_ITALIC;
250: break;
1.156 schwarze 251: case ESCAPE_FONTBOLD:
1.90 kristaps 252: font = HTMLFONT_BOLD;
1.88 kristaps 253: break;
1.156 schwarze 254: case ESCAPE_FONTBI:
1.152 schwarze 255: font = HTMLFONT_BI;
256: break;
1.156 schwarze 257: case ESCAPE_FONT:
1.145 kristaps 258: /* FALLTHROUGH */
1.156 schwarze 259: case ESCAPE_FONTROMAN:
1.90 kristaps 260: font = HTMLFONT_NONE;
1.88 kristaps 261: break;
262: default:
263: abort();
264: /* NOTREACHED */
265: }
266:
1.122 kristaps 267: if (h->metaf) {
268: print_tagq(h, h->metaf);
269: h->metaf = NULL;
270: }
271:
272: h->metal = h->metac;
273: h->metac = font;
274:
1.152 schwarze 275: switch (font) {
1.156 schwarze 276: case HTMLFONT_ITALIC:
1.152 schwarze 277: h->metaf = print_otag(h, TAG_I, 0, NULL);
278: break;
1.156 schwarze 279: case HTMLFONT_BOLD:
1.152 schwarze 280: h->metaf = print_otag(h, TAG_B, 0, NULL);
281: break;
1.156 schwarze 282: case HTMLFONT_BI:
1.152 schwarze 283: h->metaf = print_otag(h, TAG_B, 0, NULL);
284: print_otag(h, TAG_I, 0, NULL);
285: break;
286: default:
287: break;
288: }
1.88 kristaps 289: }
290:
1.138 kristaps 291: int
292: html_strlen(const char *cp)
293: {
1.151 schwarze 294: size_t rsz;
295: int skip, sz;
1.138 kristaps 296:
297: /*
298: * Account for escaped sequences within string length
299: * calculations. This follows the logic in term_strlen() as we
300: * must calculate the width of produced strings.
301: * Assume that characters are always width of "1". This is
302: * hacky, but it gets the job done for approximation of widths.
303: */
304:
305: sz = 0;
1.151 schwarze 306: skip = 0;
307: while (1) {
308: rsz = strcspn(cp, "\\");
309: if (rsz) {
310: cp += rsz;
311: if (skip) {
312: skip = 0;
313: rsz--;
314: }
315: sz += rsz;
316: }
317: if ('\0' == *cp)
318: break;
319: cp++;
320: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 321: case ESCAPE_ERROR:
1.138 kristaps 322: return(sz);
1.156 schwarze 323: case ESCAPE_UNICODE:
1.144 kristaps 324: /* FALLTHROUGH */
1.156 schwarze 325: case ESCAPE_NUMBERED:
1.139 kristaps 326: /* FALLTHROUGH */
1.156 schwarze 327: case ESCAPE_SPECIAL:
1.151 schwarze 328: if (skip)
329: skip = 0;
330: else
331: sz++;
332: break;
1.156 schwarze 333: case ESCAPE_SKIPCHAR:
1.151 schwarze 334: skip = 1;
1.138 kristaps 335: break;
336: default:
337: break;
338: }
339: }
1.151 schwarze 340: return(sz);
1.138 kristaps 341: }
1.88 kristaps 342:
1.85 kristaps 343: static int
1.159 schwarze 344: print_escape(char c)
345: {
346:
347: switch (c) {
348: case '<':
349: printf("<");
350: break;
351: case '>':
352: printf(">");
353: break;
354: case '&':
355: printf("&");
356: break;
357: case '"':
358: printf(""");
359: break;
360: case ASCII_NBRSP:
361: putchar('-');
362: break;
363: case ASCII_HYPH:
364: putchar('-');
365: /* FALLTHROUGH */
366: case ASCII_BREAK:
367: break;
368: default:
369: return(0);
370: }
371: return(1);
372: }
373:
374: static int
1.88 kristaps 375: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 376: {
1.77 kristaps 377: size_t sz;
1.141 kristaps 378: int c, len, nospace;
1.82 kristaps 379: const char *seq;
1.132 kristaps 380: enum mandoc_esc esc;
1.158 schwarze 381: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 382: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 383:
1.85 kristaps 384: nospace = 0;
385:
1.132 kristaps 386: while ('\0' != *p) {
1.151 schwarze 387: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
388: h->flags &= ~HTML_SKIPCHAR;
389: p++;
390: continue;
391: }
392:
1.100 kristaps 393: sz = strcspn(p, rejs);
1.77 kristaps 394:
395: fwrite(p, 1, sz, stdout);
1.132 kristaps 396: p += (int)sz;
1.77 kristaps 397:
1.132 kristaps 398: if ('\0' == *p)
399: break;
400:
1.159 schwarze 401: if (print_escape(*p++))
1.154 schwarze 402: continue;
1.77 kristaps 403:
1.132 kristaps 404: esc = mandoc_escape(&p, &seq, &len);
405: if (ESCAPE_ERROR == esc)
406: break;
1.82 kristaps 407:
1.132 kristaps 408: switch (esc) {
1.156 schwarze 409: case ESCAPE_FONT:
1.151 schwarze 410: /* FALLTHROUGH */
1.156 schwarze 411: case ESCAPE_FONTPREV:
1.151 schwarze 412: /* FALLTHROUGH */
1.156 schwarze 413: case ESCAPE_FONTBOLD:
1.151 schwarze 414: /* FALLTHROUGH */
1.156 schwarze 415: case ESCAPE_FONTITALIC:
1.151 schwarze 416: /* FALLTHROUGH */
1.156 schwarze 417: case ESCAPE_FONTBI:
1.152 schwarze 418: /* FALLTHROUGH */
1.156 schwarze 419: case ESCAPE_FONTROMAN:
1.151 schwarze 420: if (0 == norecurse)
421: print_metaf(h, esc);
422: continue;
1.156 schwarze 423: case ESCAPE_SKIPCHAR:
1.151 schwarze 424: h->flags |= HTML_SKIPCHAR;
425: continue;
426: default:
427: break;
428: }
429:
430: if (h->flags & HTML_SKIPCHAR) {
431: h->flags &= ~HTML_SKIPCHAR;
432: continue;
433: }
434:
435: switch (esc) {
1.156 schwarze 436: case ESCAPE_UNICODE:
1.159 schwarze 437: /* Skip past "u" header. */
1.144 kristaps 438: c = mchars_num2uc(seq + 1, len - 1);
439: if ('\0' != c)
440: printf("&#x%x;", c);
441: break;
1.156 schwarze 442: case ESCAPE_NUMBERED:
1.141 kristaps 443: c = mchars_num2char(seq, len);
1.159 schwarze 444: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 445: putchar(c);
1.82 kristaps 446: break;
1.156 schwarze 447: case ESCAPE_SPECIAL:
1.147 kristaps 448: c = mchars_spec2cp(h->symtab, seq, len);
449: if (c > 0)
450: printf("&#%d;", c);
1.159 schwarze 451: else if (-1 == c && 1 == len &&
452: !print_escape(*seq))
1.147 kristaps 453: putchar((int)*seq);
1.132 kristaps 454: break;
1.156 schwarze 455: case ESCAPE_NOSPACE:
1.132 kristaps 456: if ('\0' == *p)
457: nospace = 1;
1.88 kristaps 458: break;
1.82 kristaps 459: default:
460: break;
461: }
1.32 kristaps 462: }
1.85 kristaps 463:
464: return(nospace);
1.14 kristaps 465: }
466:
1.94 kristaps 467: static void
468: print_attr(struct html *h, const char *key, const char *val)
469: {
470: printf(" %s=\"", key);
471: (void)print_encode(h, val, 1);
472: putchar('\"');
473: }
474:
1.51 kristaps 475: struct tag *
1.156 schwarze 476: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 477: int sz, const struct htmlpair *p)
1.14 kristaps 478: {
1.29 kristaps 479: int i;
1.30 kristaps 480: struct tag *t;
481:
1.94 kristaps 482: /* Push this tags onto the stack of open scopes. */
483:
1.30 kristaps 484: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 485: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 486: t->tag = tag;
1.66 kristaps 487: t->next = h->tags.head;
488: h->tags.head = t;
1.30 kristaps 489: } else
490: t = NULL;
1.29 kristaps 491:
492: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 493: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
494: /* Manage keeps! */
495: if ( ! (HTML_KEEP & h->flags)) {
496: if (HTML_PREKEEP & h->flags)
497: h->flags |= HTML_KEEP;
498: putchar(' ');
499: } else
500: printf(" ");
501: }
1.29 kristaps 502:
1.109 kristaps 503: if ( ! (h->flags & HTML_NONOSPACE))
504: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 505: else
506: h->flags |= HTML_NOSPACE;
1.109 kristaps 507:
1.94 kristaps 508: /* Print out the tag name and attributes. */
509:
1.29 kristaps 510: printf("<%s", htmltags[tag].name);
1.94 kristaps 511: for (i = 0; i < sz; i++)
512: print_attr(h, htmlattrs[p[i].key], p[i].val);
513:
1.172 kristaps 514: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 515:
1.93 kristaps 516: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 517: putchar('/');
1.93 kristaps 518:
1.78 kristaps 519: putchar('>');
1.14 kristaps 520:
1.29 kristaps 521: h->flags |= HTML_NOSPACE;
1.117 kristaps 522:
523: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
524: putchar('\n');
525:
1.30 kristaps 526: return(t);
1.14 kristaps 527: }
528:
1.29 kristaps 529: static void
530: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 531: {
1.156 schwarze 532:
1.29 kristaps 533: printf("</%s>", htmltags[tag].name);
1.71 kristaps 534: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 535: h->flags |= HTML_NOSPACE;
1.78 kristaps 536: putchar('\n');
1.156 schwarze 537: }
1.14 kristaps 538: }
539:
1.51 kristaps 540: void
1.93 kristaps 541: print_gen_decls(struct html *h)
1.1 kristaps 542: {
1.93 kristaps 543:
1.164 kristaps 544: puts("<!DOCTYPE html>");
1.1 kristaps 545: }
546:
1.51 kristaps 547: void
1.104 kristaps 548: print_text(struct html *h, const char *word)
1.1 kristaps 549: {
550:
1.105 kristaps 551: if ( ! (HTML_NOSPACE & h->flags)) {
552: /* Manage keeps! */
553: if ( ! (HTML_KEEP & h->flags)) {
554: if (HTML_PREKEEP & h->flags)
555: h->flags |= HTML_KEEP;
556: putchar(' ');
557: } else
558: printf(" ");
559: }
1.30 kristaps 560:
1.122 kristaps 561: assert(NULL == h->metaf);
1.152 schwarze 562: switch (h->metac) {
1.156 schwarze 563: case HTMLFONT_ITALIC:
1.152 schwarze 564: h->metaf = print_otag(h, TAG_I, 0, NULL);
565: break;
1.156 schwarze 566: case HTMLFONT_BOLD:
1.152 schwarze 567: h->metaf = print_otag(h, TAG_B, 0, NULL);
568: break;
1.156 schwarze 569: case HTMLFONT_BI:
1.152 schwarze 570: h->metaf = print_otag(h, TAG_B, 0, NULL);
571: print_otag(h, TAG_I, 0, NULL);
572: break;
573: default:
574: break;
575: }
1.122 kristaps 576:
1.104 kristaps 577: assert(word);
1.149 kristaps 578: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 579: if ( ! (h->flags & HTML_NONOSPACE))
580: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 581: } else
582: h->flags |= HTML_NOSPACE;
1.122 kristaps 583:
584: if (h->metaf) {
585: print_tagq(h, h->metaf);
586: h->metaf = NULL;
587: }
1.113 schwarze 588:
589: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 590: }
1.30 kristaps 591:
1.51 kristaps 592: void
1.30 kristaps 593: print_tagq(struct html *h, const struct tag *until)
594: {
595: struct tag *tag;
596:
1.66 kristaps 597: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 598: /*
1.125 kristaps 599: * Remember to close out and nullify the current
600: * meta-font and table, if applicable.
601: */
1.89 kristaps 602: if (tag == h->metaf)
603: h->metaf = NULL;
1.125 kristaps 604: if (tag == h->tblt)
605: h->tblt = NULL;
1.30 kristaps 606: print_ctag(h, tag->tag);
1.66 kristaps 607: h->tags.head = tag->next;
1.30 kristaps 608: free(tag);
609: if (until && tag == until)
610: return;
611: }
612: }
613:
1.51 kristaps 614: void
1.30 kristaps 615: print_stagq(struct html *h, const struct tag *suntil)
616: {
617: struct tag *tag;
618:
1.66 kristaps 619: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 620: if (suntil && tag == suntil)
621: return;
1.156 schwarze 622: /*
1.125 kristaps 623: * Remember to close out and nullify the current
624: * meta-font and table, if applicable.
625: */
1.89 kristaps 626: if (tag == h->metaf)
627: h->metaf = NULL;
1.125 kristaps 628: if (tag == h->tblt)
629: h->tblt = NULL;
1.30 kristaps 630: print_ctag(h, tag->tag);
1.66 kristaps 631: h->tags.head = tag->next;
1.30 kristaps 632: free(tag);
633: }
634: }
1.171 kristaps 635:
636: void
637: print_paragraph(struct html *h)
638: {
639: struct tag *t;
640: struct htmlpair tag;
641:
642: PAIR_CLASS_INIT(&tag, "spacer");
643: t = print_otag(h, TAG_DIV, 1, &tag);
644: print_tagq(h, t);
645: }
646:
1.55 kristaps 647:
648: void
649: bufinit(struct html *h)
650: {
651:
652: h->buf[0] = '\0';
653: h->buflen = 0;
654: }
655:
656: void
1.58 kristaps 657: bufcat_style(struct html *h, const char *key, const char *val)
658: {
659:
660: bufcat(h, key);
1.141 kristaps 661: bufcat(h, ":");
1.58 kristaps 662: bufcat(h, val);
1.141 kristaps 663: bufcat(h, ";");
1.58 kristaps 664: }
665:
666: void
1.55 kristaps 667: bufcat(struct html *h, const char *p)
668: {
1.157 schwarze 669:
670: /*
671: * XXX This is broken and not easy to fix.
672: * When using the -Oincludes option, buffmt_includes()
673: * may pass in strings overrunning BUFSIZ, causing a crash.
674: */
1.55 kristaps 675:
1.141 kristaps 676: h->buflen = strlcat(h->buf, p, BUFSIZ);
677: assert(h->buflen < BUFSIZ);
1.55 kristaps 678: }
679:
680: void
1.141 kristaps 681: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 682: {
683: va_list ap;
684:
685: va_start(ap, fmt);
1.156 schwarze 686: (void)vsnprintf(h->buf + (int)h->buflen,
687: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 688: va_end(ap);
689: h->buflen = strlen(h->buf);
690: }
691:
1.141 kristaps 692: static void
1.55 kristaps 693: bufncat(struct html *h, const char *p, size_t sz)
694: {
695:
1.141 kristaps 696: assert(h->buflen + sz + 1 < BUFSIZ);
697: strncat(h->buf, p, sz);
1.55 kristaps 698: h->buflen += sz;
699: }
700:
701: void
702: buffmt_includes(struct html *h, const char *name)
703: {
704: const char *p, *pp;
705:
706: pp = h->base_includes;
1.156 schwarze 707:
1.143 kristaps 708: bufinit(h);
1.61 kristaps 709: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 710: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 711: switch (*(p + 1)) {
1.156 schwarze 712: case'I':
1.55 kristaps 713: bufcat(h, name);
714: break;
715: default:
716: bufncat(h, p, 2);
717: break;
718: }
719: pp = p + 2;
720: }
721: if (pp)
722: bufcat(h, pp);
723: }
724:
725: void
1.156 schwarze 726: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 727: {
728: const char *p, *pp;
729:
730: pp = h->base_man;
1.156 schwarze 731:
1.143 kristaps 732: bufinit(h);
1.61 kristaps 733: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 734: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 735: switch (*(p + 1)) {
1.156 schwarze 736: case 'S':
1.58 kristaps 737: bufcat(h, sec ? sec : "1");
1.55 kristaps 738: break;
1.156 schwarze 739: case 'N':
1.153 joerg 740: bufcat_fmt(h, "%s", name);
1.55 kristaps 741: break;
742: default:
743: bufncat(h, p, 2);
744: break;
745: }
746: pp = p + 2;
747: }
748: if (pp)
749: bufcat(h, pp);
750: }
1.58 kristaps 751:
752: void
753: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
754: {
1.62 kristaps 755: double v;
1.58 kristaps 756:
757: v = su->scale;
1.140 kristaps 758: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
759: v = 1.0;
1.162 kristaps 760: else if (SCALE_BU == su->unit)
761: v /= 24.0;
1.58 kristaps 762:
1.141 kristaps 763: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 764: }
1.68 kristaps 765:
766: void
1.142 kristaps 767: bufcat_id(struct html *h, const char *src)
1.68 kristaps 768: {
769:
770: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
771:
1.142 kristaps 772: while ('\0' != *src)
773: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 774: }
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