Annotation of mandoc/html.c, Revision 1.173
1.173 ! kristaps 1: /* $Id: html.c,v 1.172 2014/09/27 11:17:19 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 */
1.90 kristaps 90: };
91:
1.82 kristaps 92: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 93: "name", /* ATTR_NAME */
94: "rel", /* ATTR_REL */
95: "href", /* ATTR_HREF */
96: "type", /* ATTR_TYPE */
97: "media", /* ATTR_MEDIA */
98: "class", /* ATTR_CLASS */
99: "style", /* ATTR_STYLE */
100: "id", /* ATTR_ID */
1.125 kristaps 101: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 102: "charset", /* ATTR_CHARSET */
1.173 ! kristaps 103: "open", /* ATTR_OPEN */
! 104: "close", /* ATTR_CLOSE */
1.29 kristaps 105: };
1.10 kristaps 106:
1.140 kristaps 107: static const char *const roffscales[SCALE_MAX] = {
108: "cm", /* SCALE_CM */
109: "in", /* SCALE_IN */
110: "pc", /* SCALE_PC */
111: "pt", /* SCALE_PT */
112: "em", /* SCALE_EM */
113: "em", /* SCALE_MM */
114: "ex", /* SCALE_EN */
115: "ex", /* SCALE_BU */
116: "em", /* SCALE_VS */
117: "ex", /* SCALE_FS */
118: };
119:
1.141 kristaps 120: static void bufncat(struct html *, const char *, size_t);
121: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 122: static int print_escape(char);
1.141 kristaps 123: static int print_encode(struct html *, const char *, int);
124: static void print_metaf(struct html *, enum mandoc_esc);
125: static void print_attr(struct html *, const char *, const char *);
1.172 kristaps 126: static void *ml_alloc(char *);
1.82 kristaps 127:
1.156 schwarze 128:
1.93 kristaps 129: static void *
1.172 kristaps 130: ml_alloc(char *outopts)
1.10 kristaps 131: {
1.30 kristaps 132: struct html *h;
1.150 kristaps 133: const char *toks[5];
1.63 kristaps 134: char *v;
1.43 kristaps 135:
136: toks[0] = "style";
1.53 kristaps 137: toks[1] = "man";
1.54 kristaps 138: toks[2] = "includes";
1.150 kristaps 139: toks[3] = "fragment";
140: toks[4] = NULL;
1.30 kristaps 141:
1.128 kristaps 142: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 143:
1.66 kristaps 144: h->tags.head = NULL;
1.136 kristaps 145: h->symtab = mchars_alloc();
1.41 kristaps 146:
1.47 kristaps 147: while (outopts && *outopts)
1.63 kristaps 148: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 149: case 0:
1.43 kristaps 150: h->style = v;
151: break;
1.156 schwarze 152: case 1:
1.53 kristaps 153: h->base_man = v;
1.43 kristaps 154: break;
1.156 schwarze 155: case 2:
1.54 kristaps 156: h->base_includes = v;
1.150 kristaps 157: break;
1.156 schwarze 158: case 3:
1.150 kristaps 159: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 160: break;
1.43 kristaps 161: default:
162: break;
163: }
164:
1.30 kristaps 165: return(h);
1.29 kristaps 166: }
1.10 kristaps 167:
1.93 kristaps 168: void *
169: html_alloc(char *outopts)
170: {
171:
1.172 kristaps 172: return(ml_alloc(outopts));
1.93 kristaps 173: }
174:
175: void *
176: xhtml_alloc(char *outopts)
177: {
178:
1.172 kristaps 179: return(ml_alloc(outopts));
1.93 kristaps 180: }
181:
1.29 kristaps 182: void
183: html_free(void *p)
184: {
1.30 kristaps 185: struct tag *tag;
186: struct html *h;
187:
188: h = (struct html *)p;
1.37 kristaps 189:
1.66 kristaps 190: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 191: h->tags.head = tag->next;
1.30 kristaps 192: free(tag);
193: }
1.156 schwarze 194:
1.36 kristaps 195: if (h->symtab)
1.133 kristaps 196: mchars_free(h->symtab);
1.53 kristaps 197:
1.30 kristaps 198: free(h);
1.10 kristaps 199: }
1.2 kristaps 200:
1.51 kristaps 201: void
1.29 kristaps 202: print_gen_head(struct html *h)
203: {
1.41 kristaps 204: struct htmlpair tag[4];
1.165 kristaps 205: struct tag *t;
1.41 kristaps 206:
1.164 kristaps 207: tag[0].key = ATTR_CHARSET;
208: tag[0].val = "utf-8";
209: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 210:
1.168 kristaps 211: /*
212: * Print a default style-sheet.
213: */
1.165 kristaps 214: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 215: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 216: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 217: "td.head-vol { text-align: center; }\n"
218: "table.foot td { width: 50%; }\n"
1.171 kristaps 219: "table.head td { width: 33%; }\n"
220: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 221: print_tagq(h, t);
1.41 kristaps 222:
223: if (h->style) {
224: tag[0].key = ATTR_REL;
225: tag[0].val = "stylesheet";
226: tag[1].key = ATTR_HREF;
227: tag[1].val = h->style;
228: tag[2].key = ATTR_TYPE;
229: tag[2].val = "text/css";
230: tag[3].key = ATTR_MEDIA;
231: tag[3].val = "all";
232: print_otag(h, TAG_LINK, 4, tag);
233: }
1.4 kristaps 234: }
235:
1.126 schwarze 236: static void
1.132 kristaps 237: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 238: {
1.90 kristaps 239: enum htmlfont font;
1.88 kristaps 240:
241: switch (deco) {
1.156 schwarze 242: case ESCAPE_FONTPREV:
1.90 kristaps 243: font = h->metal;
1.88 kristaps 244: break;
1.156 schwarze 245: case ESCAPE_FONTITALIC:
1.90 kristaps 246: font = HTMLFONT_ITALIC;
247: break;
1.156 schwarze 248: case ESCAPE_FONTBOLD:
1.90 kristaps 249: font = HTMLFONT_BOLD;
1.88 kristaps 250: break;
1.156 schwarze 251: case ESCAPE_FONTBI:
1.152 schwarze 252: font = HTMLFONT_BI;
253: break;
1.156 schwarze 254: case ESCAPE_FONT:
1.145 kristaps 255: /* FALLTHROUGH */
1.156 schwarze 256: case ESCAPE_FONTROMAN:
1.90 kristaps 257: font = HTMLFONT_NONE;
1.88 kristaps 258: break;
259: default:
260: abort();
261: /* NOTREACHED */
262: }
263:
1.122 kristaps 264: if (h->metaf) {
265: print_tagq(h, h->metaf);
266: h->metaf = NULL;
267: }
268:
269: h->metal = h->metac;
270: h->metac = font;
271:
1.152 schwarze 272: switch (font) {
1.156 schwarze 273: case HTMLFONT_ITALIC:
1.152 schwarze 274: h->metaf = print_otag(h, TAG_I, 0, NULL);
275: break;
1.156 schwarze 276: case HTMLFONT_BOLD:
1.152 schwarze 277: h->metaf = print_otag(h, TAG_B, 0, NULL);
278: break;
1.156 schwarze 279: case HTMLFONT_BI:
1.152 schwarze 280: h->metaf = print_otag(h, TAG_B, 0, NULL);
281: print_otag(h, TAG_I, 0, NULL);
282: break;
283: default:
284: break;
285: }
1.88 kristaps 286: }
287:
1.138 kristaps 288: int
289: html_strlen(const char *cp)
290: {
1.151 schwarze 291: size_t rsz;
292: int skip, sz;
1.138 kristaps 293:
294: /*
295: * Account for escaped sequences within string length
296: * calculations. This follows the logic in term_strlen() as we
297: * must calculate the width of produced strings.
298: * Assume that characters are always width of "1". This is
299: * hacky, but it gets the job done for approximation of widths.
300: */
301:
302: sz = 0;
1.151 schwarze 303: skip = 0;
304: while (1) {
305: rsz = strcspn(cp, "\\");
306: if (rsz) {
307: cp += rsz;
308: if (skip) {
309: skip = 0;
310: rsz--;
311: }
312: sz += rsz;
313: }
314: if ('\0' == *cp)
315: break;
316: cp++;
317: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 318: case ESCAPE_ERROR:
1.138 kristaps 319: return(sz);
1.156 schwarze 320: case ESCAPE_UNICODE:
1.144 kristaps 321: /* FALLTHROUGH */
1.156 schwarze 322: case ESCAPE_NUMBERED:
1.139 kristaps 323: /* FALLTHROUGH */
1.156 schwarze 324: case ESCAPE_SPECIAL:
1.151 schwarze 325: if (skip)
326: skip = 0;
327: else
328: sz++;
329: break;
1.156 schwarze 330: case ESCAPE_SKIPCHAR:
1.151 schwarze 331: skip = 1;
1.138 kristaps 332: break;
333: default:
334: break;
335: }
336: }
1.151 schwarze 337: return(sz);
1.138 kristaps 338: }
1.88 kristaps 339:
1.85 kristaps 340: static int
1.159 schwarze 341: print_escape(char c)
342: {
343:
344: switch (c) {
345: case '<':
346: printf("<");
347: break;
348: case '>':
349: printf(">");
350: break;
351: case '&':
352: printf("&");
353: break;
354: case '"':
355: printf(""");
356: break;
357: case ASCII_NBRSP:
358: putchar('-');
359: break;
360: case ASCII_HYPH:
361: putchar('-');
362: /* FALLTHROUGH */
363: case ASCII_BREAK:
364: break;
365: default:
366: return(0);
367: }
368: return(1);
369: }
370:
371: static int
1.88 kristaps 372: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 373: {
1.77 kristaps 374: size_t sz;
1.141 kristaps 375: int c, len, nospace;
1.82 kristaps 376: const char *seq;
1.132 kristaps 377: enum mandoc_esc esc;
1.158 schwarze 378: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 379: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 380:
1.85 kristaps 381: nospace = 0;
382:
1.132 kristaps 383: while ('\0' != *p) {
1.151 schwarze 384: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
385: h->flags &= ~HTML_SKIPCHAR;
386: p++;
387: continue;
388: }
389:
1.100 kristaps 390: sz = strcspn(p, rejs);
1.77 kristaps 391:
392: fwrite(p, 1, sz, stdout);
1.132 kristaps 393: p += (int)sz;
1.77 kristaps 394:
1.132 kristaps 395: if ('\0' == *p)
396: break;
397:
1.159 schwarze 398: if (print_escape(*p++))
1.154 schwarze 399: continue;
1.77 kristaps 400:
1.132 kristaps 401: esc = mandoc_escape(&p, &seq, &len);
402: if (ESCAPE_ERROR == esc)
403: break;
1.82 kristaps 404:
1.132 kristaps 405: switch (esc) {
1.156 schwarze 406: case ESCAPE_FONT:
1.151 schwarze 407: /* FALLTHROUGH */
1.156 schwarze 408: case ESCAPE_FONTPREV:
1.151 schwarze 409: /* FALLTHROUGH */
1.156 schwarze 410: case ESCAPE_FONTBOLD:
1.151 schwarze 411: /* FALLTHROUGH */
1.156 schwarze 412: case ESCAPE_FONTITALIC:
1.151 schwarze 413: /* FALLTHROUGH */
1.156 schwarze 414: case ESCAPE_FONTBI:
1.152 schwarze 415: /* FALLTHROUGH */
1.156 schwarze 416: case ESCAPE_FONTROMAN:
1.151 schwarze 417: if (0 == norecurse)
418: print_metaf(h, esc);
419: continue;
1.156 schwarze 420: case ESCAPE_SKIPCHAR:
1.151 schwarze 421: h->flags |= HTML_SKIPCHAR;
422: continue;
423: default:
424: break;
425: }
426:
427: if (h->flags & HTML_SKIPCHAR) {
428: h->flags &= ~HTML_SKIPCHAR;
429: continue;
430: }
431:
432: switch (esc) {
1.156 schwarze 433: case ESCAPE_UNICODE:
1.159 schwarze 434: /* Skip past "u" header. */
1.144 kristaps 435: c = mchars_num2uc(seq + 1, len - 1);
436: if ('\0' != c)
437: printf("&#x%x;", c);
438: break;
1.156 schwarze 439: case ESCAPE_NUMBERED:
1.141 kristaps 440: c = mchars_num2char(seq, len);
1.159 schwarze 441: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 442: putchar(c);
1.82 kristaps 443: break;
1.156 schwarze 444: case ESCAPE_SPECIAL:
1.147 kristaps 445: c = mchars_spec2cp(h->symtab, seq, len);
446: if (c > 0)
447: printf("&#%d;", c);
1.159 schwarze 448: else if (-1 == c && 1 == len &&
449: !print_escape(*seq))
1.147 kristaps 450: putchar((int)*seq);
1.132 kristaps 451: break;
1.156 schwarze 452: case ESCAPE_NOSPACE:
1.132 kristaps 453: if ('\0' == *p)
454: nospace = 1;
1.88 kristaps 455: break;
1.82 kristaps 456: default:
457: break;
458: }
1.32 kristaps 459: }
1.85 kristaps 460:
461: return(nospace);
1.14 kristaps 462: }
463:
1.94 kristaps 464: static void
465: print_attr(struct html *h, const char *key, const char *val)
466: {
467: printf(" %s=\"", key);
468: (void)print_encode(h, val, 1);
469: putchar('\"');
470: }
471:
1.51 kristaps 472: struct tag *
1.156 schwarze 473: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 474: int sz, const struct htmlpair *p)
1.14 kristaps 475: {
1.29 kristaps 476: int i;
1.30 kristaps 477: struct tag *t;
478:
1.94 kristaps 479: /* Push this tags onto the stack of open scopes. */
480:
1.30 kristaps 481: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 482: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 483: t->tag = tag;
1.66 kristaps 484: t->next = h->tags.head;
485: h->tags.head = t;
1.30 kristaps 486: } else
487: t = NULL;
1.29 kristaps 488:
489: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 490: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
491: /* Manage keeps! */
492: if ( ! (HTML_KEEP & h->flags)) {
493: if (HTML_PREKEEP & h->flags)
494: h->flags |= HTML_KEEP;
495: putchar(' ');
496: } else
497: printf(" ");
498: }
1.29 kristaps 499:
1.109 kristaps 500: if ( ! (h->flags & HTML_NONOSPACE))
501: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 502: else
503: h->flags |= HTML_NOSPACE;
1.109 kristaps 504:
1.94 kristaps 505: /* Print out the tag name and attributes. */
506:
1.29 kristaps 507: printf("<%s", htmltags[tag].name);
1.94 kristaps 508: for (i = 0; i < sz; i++)
509: print_attr(h, htmlattrs[p[i].key], p[i].val);
510:
1.172 kristaps 511: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 512:
1.93 kristaps 513: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 514: putchar('/');
1.93 kristaps 515:
1.78 kristaps 516: putchar('>');
1.14 kristaps 517:
1.29 kristaps 518: h->flags |= HTML_NOSPACE;
1.117 kristaps 519:
520: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
521: putchar('\n');
522:
1.30 kristaps 523: return(t);
1.14 kristaps 524: }
525:
1.29 kristaps 526: static void
527: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 528: {
1.156 schwarze 529:
1.29 kristaps 530: printf("</%s>", htmltags[tag].name);
1.71 kristaps 531: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 532: h->flags |= HTML_NOSPACE;
1.78 kristaps 533: putchar('\n');
1.156 schwarze 534: }
1.14 kristaps 535: }
536:
1.51 kristaps 537: void
1.93 kristaps 538: print_gen_decls(struct html *h)
1.1 kristaps 539: {
1.93 kristaps 540:
1.164 kristaps 541: puts("<!DOCTYPE html>");
1.1 kristaps 542: }
543:
1.51 kristaps 544: void
1.104 kristaps 545: print_text(struct html *h, const char *word)
1.1 kristaps 546: {
547:
1.105 kristaps 548: if ( ! (HTML_NOSPACE & h->flags)) {
549: /* Manage keeps! */
550: if ( ! (HTML_KEEP & h->flags)) {
551: if (HTML_PREKEEP & h->flags)
552: h->flags |= HTML_KEEP;
553: putchar(' ');
554: } else
555: printf(" ");
556: }
1.30 kristaps 557:
1.122 kristaps 558: assert(NULL == h->metaf);
1.152 schwarze 559: switch (h->metac) {
1.156 schwarze 560: case HTMLFONT_ITALIC:
1.152 schwarze 561: h->metaf = print_otag(h, TAG_I, 0, NULL);
562: break;
1.156 schwarze 563: case HTMLFONT_BOLD:
1.152 schwarze 564: h->metaf = print_otag(h, TAG_B, 0, NULL);
565: break;
1.156 schwarze 566: case HTMLFONT_BI:
1.152 schwarze 567: h->metaf = print_otag(h, TAG_B, 0, NULL);
568: print_otag(h, TAG_I, 0, NULL);
569: break;
570: default:
571: break;
572: }
1.122 kristaps 573:
1.104 kristaps 574: assert(word);
1.149 kristaps 575: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 576: if ( ! (h->flags & HTML_NONOSPACE))
577: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 578: } else
579: h->flags |= HTML_NOSPACE;
1.122 kristaps 580:
581: if (h->metaf) {
582: print_tagq(h, h->metaf);
583: h->metaf = NULL;
584: }
1.113 schwarze 585:
586: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 587: }
1.30 kristaps 588:
1.51 kristaps 589: void
1.30 kristaps 590: print_tagq(struct html *h, const struct tag *until)
591: {
592: struct tag *tag;
593:
1.66 kristaps 594: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 595: /*
1.125 kristaps 596: * Remember to close out and nullify the current
597: * meta-font and table, if applicable.
598: */
1.89 kristaps 599: if (tag == h->metaf)
600: h->metaf = NULL;
1.125 kristaps 601: if (tag == h->tblt)
602: h->tblt = NULL;
1.30 kristaps 603: print_ctag(h, tag->tag);
1.66 kristaps 604: h->tags.head = tag->next;
1.30 kristaps 605: free(tag);
606: if (until && tag == until)
607: return;
608: }
609: }
610:
1.51 kristaps 611: void
1.30 kristaps 612: print_stagq(struct html *h, const struct tag *suntil)
613: {
614: struct tag *tag;
615:
1.66 kristaps 616: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 617: if (suntil && tag == suntil)
618: return;
1.156 schwarze 619: /*
1.125 kristaps 620: * Remember to close out and nullify the current
621: * meta-font and table, if applicable.
622: */
1.89 kristaps 623: if (tag == h->metaf)
624: h->metaf = NULL;
1.125 kristaps 625: if (tag == h->tblt)
626: h->tblt = NULL;
1.30 kristaps 627: print_ctag(h, tag->tag);
1.66 kristaps 628: h->tags.head = tag->next;
1.30 kristaps 629: free(tag);
630: }
631: }
1.171 kristaps 632:
633: void
634: print_paragraph(struct html *h)
635: {
636: struct tag *t;
637: struct htmlpair tag;
638:
639: PAIR_CLASS_INIT(&tag, "spacer");
640: t = print_otag(h, TAG_DIV, 1, &tag);
641: print_tagq(h, t);
642: }
643:
1.55 kristaps 644:
645: void
646: bufinit(struct html *h)
647: {
648:
649: h->buf[0] = '\0';
650: h->buflen = 0;
651: }
652:
653: void
1.58 kristaps 654: bufcat_style(struct html *h, const char *key, const char *val)
655: {
656:
657: bufcat(h, key);
1.141 kristaps 658: bufcat(h, ":");
1.58 kristaps 659: bufcat(h, val);
1.141 kristaps 660: bufcat(h, ";");
1.58 kristaps 661: }
662:
663: void
1.55 kristaps 664: bufcat(struct html *h, const char *p)
665: {
1.157 schwarze 666:
667: /*
668: * XXX This is broken and not easy to fix.
669: * When using the -Oincludes option, buffmt_includes()
670: * may pass in strings overrunning BUFSIZ, causing a crash.
671: */
1.55 kristaps 672:
1.141 kristaps 673: h->buflen = strlcat(h->buf, p, BUFSIZ);
674: assert(h->buflen < BUFSIZ);
1.55 kristaps 675: }
676:
677: void
1.141 kristaps 678: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 679: {
680: va_list ap;
681:
682: va_start(ap, fmt);
1.156 schwarze 683: (void)vsnprintf(h->buf + (int)h->buflen,
684: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 685: va_end(ap);
686: h->buflen = strlen(h->buf);
687: }
688:
1.141 kristaps 689: static void
1.55 kristaps 690: bufncat(struct html *h, const char *p, size_t sz)
691: {
692:
1.141 kristaps 693: assert(h->buflen + sz + 1 < BUFSIZ);
694: strncat(h->buf, p, sz);
1.55 kristaps 695: h->buflen += sz;
696: }
697:
698: void
699: buffmt_includes(struct html *h, const char *name)
700: {
701: const char *p, *pp;
702:
703: pp = h->base_includes;
1.156 schwarze 704:
1.143 kristaps 705: bufinit(h);
1.61 kristaps 706: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 707: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 708: switch (*(p + 1)) {
1.156 schwarze 709: case'I':
1.55 kristaps 710: bufcat(h, name);
711: break;
712: default:
713: bufncat(h, p, 2);
714: break;
715: }
716: pp = p + 2;
717: }
718: if (pp)
719: bufcat(h, pp);
720: }
721:
722: void
1.156 schwarze 723: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 724: {
725: const char *p, *pp;
726:
727: pp = h->base_man;
1.156 schwarze 728:
1.143 kristaps 729: bufinit(h);
1.61 kristaps 730: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 731: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 732: switch (*(p + 1)) {
1.156 schwarze 733: case 'S':
1.58 kristaps 734: bufcat(h, sec ? sec : "1");
1.55 kristaps 735: break;
1.156 schwarze 736: case 'N':
1.153 joerg 737: bufcat_fmt(h, "%s", name);
1.55 kristaps 738: break;
739: default:
740: bufncat(h, p, 2);
741: break;
742: }
743: pp = p + 2;
744: }
745: if (pp)
746: bufcat(h, pp);
747: }
1.58 kristaps 748:
749: void
750: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
751: {
1.62 kristaps 752: double v;
1.58 kristaps 753:
754: v = su->scale;
1.140 kristaps 755: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
756: v = 1.0;
1.162 kristaps 757: else if (SCALE_BU == su->unit)
758: v /= 24.0;
1.58 kristaps 759:
1.141 kristaps 760: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 761: }
1.68 kristaps 762:
763: void
1.142 kristaps 764: bufcat_id(struct html *h, const char *src)
1.68 kristaps 765: {
766:
767: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
768:
1.142 kristaps 769: while ('\0' != *src)
770: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 771: }
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