Annotation of mandoc/html.c, Revision 1.151
1.151 ! schwarze 1: /* $Id: html.c,v 1.150 2011/10/05 21:35:17 kristaps Exp $ */
1.1 kristaps 2: /*
1.126 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.151 ! schwarze 4: * Copyright (c) 2011, 2012 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: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.41 kristaps 22: #include <sys/types.h>
1.30 kristaps 23:
1.1 kristaps 24: #include <assert.h>
1.68 kristaps 25: #include <ctype.h>
1.76 kristaps 26: #include <stdarg.h>
1.29 kristaps 27: #include <stdio.h>
1.63 kristaps 28: #include <stdint.h>
1.1 kristaps 29: #include <stdlib.h>
1.33 kristaps 30: #include <string.h>
1.45 kristaps 31: #include <unistd.h>
1.1 kristaps 32:
1.100 kristaps 33: #include "mandoc.h"
1.138 kristaps 34: #include "libmandoc.h"
1.58 kristaps 35: #include "out.h"
1.51 kristaps 36: #include "html.h"
1.64 kristaps 37: #include "main.h"
1.63 kristaps 38:
1.29 kristaps 39: struct htmldata {
1.63 kristaps 40: const char *name;
1.29 kristaps 41: int flags;
1.30 kristaps 42: #define HTML_CLRLINE (1 << 0)
43: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 44: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 45: };
1.7 kristaps 46:
1.29 kristaps 47: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 48: {"html", HTML_CLRLINE}, /* TAG_HTML */
49: {"head", HTML_CLRLINE}, /* TAG_HEAD */
50: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 51: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 52: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 53: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 54: {"h1", 0}, /* TAG_H1 */
55: {"h2", 0}, /* TAG_H2 */
56: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 57: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 58: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 59: {"a", 0}, /* TAG_A */
1.33 kristaps 60: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 61: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 62: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 63: {"tr", HTML_CLRLINE}, /* TAG_TR */
64: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 65: {"li", HTML_CLRLINE}, /* TAG_LI */
66: {"ul", HTML_CLRLINE}, /* TAG_UL */
67: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 68: {"dl", HTML_CLRLINE}, /* TAG_DL */
69: {"dt", HTML_CLRLINE}, /* TAG_DT */
70: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 71: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.116 kristaps 72: {"p", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */
1.118 kristaps 73: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 74: {"b", 0 }, /* TAG_B */
1.120 kristaps 75: {"i", 0 }, /* TAG_I */
1.121 kristaps 76: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 77: {"small", 0 }, /* TAG_SMALL */
1.90 kristaps 78: };
79:
1.82 kristaps 80: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 81: "http-equiv", /* ATTR_HTTPEQUIV */
82: "content", /* ATTR_CONTENT */
83: "name", /* ATTR_NAME */
84: "rel", /* ATTR_REL */
85: "href", /* ATTR_HREF */
86: "type", /* ATTR_TYPE */
87: "media", /* ATTR_MEDIA */
88: "class", /* ATTR_CLASS */
89: "style", /* ATTR_STYLE */
90: "width", /* ATTR_WIDTH */
91: "id", /* ATTR_ID */
92: "summary", /* ATTR_SUMMARY */
93: "align", /* ATTR_ALIGN */
1.125 kristaps 94: "colspan", /* ATTR_COLSPAN */
1.29 kristaps 95: };
1.10 kristaps 96:
1.140 kristaps 97: static const char *const roffscales[SCALE_MAX] = {
98: "cm", /* SCALE_CM */
99: "in", /* SCALE_IN */
100: "pc", /* SCALE_PC */
101: "pt", /* SCALE_PT */
102: "em", /* SCALE_EM */
103: "em", /* SCALE_MM */
104: "ex", /* SCALE_EN */
105: "ex", /* SCALE_BU */
106: "em", /* SCALE_VS */
107: "ex", /* SCALE_FS */
108: };
109:
1.141 kristaps 110: static void bufncat(struct html *, const char *, size_t);
111: static void print_ctag(struct html *, enum htmltag);
112: static int print_encode(struct html *, const char *, int);
113: static void print_metaf(struct html *, enum mandoc_esc);
114: static void print_attr(struct html *, const char *, const char *);
115: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 116:
1.93 kristaps 117: static void *
118: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 119: {
1.30 kristaps 120: struct html *h;
1.150 kristaps 121: const char *toks[5];
1.63 kristaps 122: char *v;
1.43 kristaps 123:
124: toks[0] = "style";
1.53 kristaps 125: toks[1] = "man";
1.54 kristaps 126: toks[2] = "includes";
1.150 kristaps 127: toks[3] = "fragment";
128: toks[4] = NULL;
1.30 kristaps 129:
1.128 kristaps 130: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 131:
1.93 kristaps 132: h->type = type;
1.66 kristaps 133: h->tags.head = NULL;
1.136 kristaps 134: h->symtab = mchars_alloc();
1.41 kristaps 135:
1.47 kristaps 136: while (outopts && *outopts)
1.63 kristaps 137: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.43 kristaps 138: case (0):
139: h->style = v;
140: break;
141: case (1):
1.53 kristaps 142: h->base_man = v;
1.43 kristaps 143: break;
1.54 kristaps 144: case (2):
145: h->base_includes = v;
1.150 kristaps 146: break;
147: case (3):
148: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 149: break;
1.43 kristaps 150: default:
151: break;
152: }
153:
1.30 kristaps 154: return(h);
1.29 kristaps 155: }
1.10 kristaps 156:
1.93 kristaps 157: void *
158: html_alloc(char *outopts)
159: {
160:
161: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
162: }
163:
164:
165: void *
166: xhtml_alloc(char *outopts)
167: {
168:
169: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
170: }
171:
1.33 kristaps 172:
1.29 kristaps 173: void
174: html_free(void *p)
175: {
1.30 kristaps 176: struct tag *tag;
177: struct html *h;
178:
179: h = (struct html *)p;
1.37 kristaps 180:
1.66 kristaps 181: while ((tag = h->tags.head) != NULL) {
182: h->tags.head = tag->next;
1.30 kristaps 183: free(tag);
184: }
1.36 kristaps 185:
186: if (h->symtab)
1.133 kristaps 187: mchars_free(h->symtab);
1.53 kristaps 188:
1.30 kristaps 189: free(h);
1.10 kristaps 190: }
1.2 kristaps 191:
1.33 kristaps 192:
1.51 kristaps 193: void
1.29 kristaps 194: print_gen_head(struct html *h)
195: {
1.41 kristaps 196: struct htmlpair tag[4];
197:
198: tag[0].key = ATTR_HTTPEQUIV;
199: tag[0].val = "Content-Type";
200: tag[1].key = ATTR_CONTENT;
201: tag[1].val = "text/html; charset=utf-8";
202: print_otag(h, TAG_META, 2, tag);
203:
204: tag[0].key = ATTR_NAME;
205: tag[0].val = "resource-type";
206: tag[1].key = ATTR_CONTENT;
207: tag[1].val = "document";
208: print_otag(h, TAG_META, 2, tag);
209:
210: if (h->style) {
211: tag[0].key = ATTR_REL;
212: tag[0].val = "stylesheet";
213: tag[1].key = ATTR_HREF;
214: tag[1].val = h->style;
215: tag[2].key = ATTR_TYPE;
216: tag[2].val = "text/css";
217: tag[3].key = ATTR_MEDIA;
218: tag[3].val = "all";
219: print_otag(h, TAG_LINK, 4, tag);
220: }
1.4 kristaps 221: }
222:
1.126 schwarze 223: static void
1.132 kristaps 224: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 225: {
1.90 kristaps 226: enum htmlfont font;
1.88 kristaps 227:
228: switch (deco) {
1.132 kristaps 229: case (ESCAPE_FONTPREV):
1.90 kristaps 230: font = h->metal;
1.88 kristaps 231: break;
1.132 kristaps 232: case (ESCAPE_FONTITALIC):
1.90 kristaps 233: font = HTMLFONT_ITALIC;
234: break;
1.132 kristaps 235: case (ESCAPE_FONTBOLD):
1.90 kristaps 236: font = HTMLFONT_BOLD;
1.88 kristaps 237: break;
1.145 kristaps 238: case (ESCAPE_FONT):
239: /* FALLTHROUGH */
1.132 kristaps 240: case (ESCAPE_FONTROMAN):
1.90 kristaps 241: font = HTMLFONT_NONE;
1.88 kristaps 242: break;
243: default:
244: abort();
245: /* NOTREACHED */
246: }
247:
1.122 kristaps 248: if (h->metaf) {
249: print_tagq(h, h->metaf);
250: h->metaf = NULL;
251: }
252:
253: h->metal = h->metac;
254: h->metac = font;
255:
256: if (HTMLFONT_NONE != font)
257: h->metaf = HTMLFONT_BOLD == font ?
258: print_otag(h, TAG_B, 0, NULL) :
259: print_otag(h, TAG_I, 0, NULL);
1.88 kristaps 260: }
261:
1.138 kristaps 262: int
263: html_strlen(const char *cp)
264: {
1.151 ! schwarze 265: size_t rsz;
! 266: int skip, sz;
1.138 kristaps 267:
268: /*
269: * Account for escaped sequences within string length
270: * calculations. This follows the logic in term_strlen() as we
271: * must calculate the width of produced strings.
272: * Assume that characters are always width of "1". This is
273: * hacky, but it gets the job done for approximation of widths.
274: */
275:
276: sz = 0;
1.151 ! schwarze 277: skip = 0;
! 278: while (1) {
! 279: rsz = strcspn(cp, "\\");
! 280: if (rsz) {
! 281: cp += rsz;
! 282: if (skip) {
! 283: skip = 0;
! 284: rsz--;
! 285: }
! 286: sz += rsz;
! 287: }
! 288: if ('\0' == *cp)
! 289: break;
! 290: cp++;
! 291: switch (mandoc_escape(&cp, NULL, NULL)) {
1.138 kristaps 292: case (ESCAPE_ERROR):
293: return(sz);
1.144 kristaps 294: case (ESCAPE_UNICODE):
295: /* FALLTHROUGH */
1.139 kristaps 296: case (ESCAPE_NUMBERED):
297: /* FALLTHROUGH */
1.138 kristaps 298: case (ESCAPE_SPECIAL):
1.151 ! schwarze 299: if (skip)
! 300: skip = 0;
! 301: else
! 302: sz++;
! 303: break;
! 304: case (ESCAPE_SKIPCHAR):
! 305: skip = 1;
1.138 kristaps 306: break;
307: default:
308: break;
309: }
310: }
1.151 ! schwarze 311: return(sz);
1.138 kristaps 312: }
1.88 kristaps 313:
1.85 kristaps 314: static int
1.88 kristaps 315: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 316: {
1.77 kristaps 317: size_t sz;
1.141 kristaps 318: int c, len, nospace;
1.82 kristaps 319: const char *seq;
1.132 kristaps 320: enum mandoc_esc esc;
1.100 kristaps 321: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 322:
1.85 kristaps 323: nospace = 0;
324:
1.132 kristaps 325: while ('\0' != *p) {
1.151 ! schwarze 326: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
! 327: h->flags &= ~HTML_SKIPCHAR;
! 328: p++;
! 329: continue;
! 330: }
! 331:
1.100 kristaps 332: sz = strcspn(p, rejs);
1.77 kristaps 333:
334: fwrite(p, 1, sz, stdout);
1.132 kristaps 335: p += (int)sz;
1.77 kristaps 336:
1.132 kristaps 337: if ('\0' == *p)
338: break;
339:
340: switch (*p++) {
341: case ('<'):
1.82 kristaps 342: printf("<");
343: continue;
1.132 kristaps 344: case ('>'):
1.82 kristaps 345: printf(">");
346: continue;
1.132 kristaps 347: case ('&'):
1.82 kristaps 348: printf("&");
1.34 kristaps 349: continue;
1.132 kristaps 350: case (ASCII_HYPH):
1.100 kristaps 351: putchar('-');
352: continue;
1.132 kristaps 353: default:
1.77 kristaps 354: break;
1.132 kristaps 355: }
1.77 kristaps 356:
1.132 kristaps 357: esc = mandoc_escape(&p, &seq, &len);
358: if (ESCAPE_ERROR == esc)
359: break;
1.82 kristaps 360:
1.132 kristaps 361: switch (esc) {
1.151 ! schwarze 362: case (ESCAPE_FONT):
! 363: /* FALLTHROUGH */
! 364: case (ESCAPE_FONTPREV):
! 365: /* FALLTHROUGH */
! 366: case (ESCAPE_FONTBOLD):
! 367: /* FALLTHROUGH */
! 368: case (ESCAPE_FONTITALIC):
! 369: /* FALLTHROUGH */
! 370: case (ESCAPE_FONTROMAN):
! 371: if (0 == norecurse)
! 372: print_metaf(h, esc);
! 373: continue;
! 374: case (ESCAPE_SKIPCHAR):
! 375: h->flags |= HTML_SKIPCHAR;
! 376: continue;
! 377: default:
! 378: break;
! 379: }
! 380:
! 381: if (h->flags & HTML_SKIPCHAR) {
! 382: h->flags &= ~HTML_SKIPCHAR;
! 383: continue;
! 384: }
! 385:
! 386: switch (esc) {
1.144 kristaps 387: case (ESCAPE_UNICODE):
388: /* Skip passed "u" header. */
389: c = mchars_num2uc(seq + 1, len - 1);
390: if ('\0' != c)
391: printf("&#x%x;", c);
392: break;
1.132 kristaps 393: case (ESCAPE_NUMBERED):
1.141 kristaps 394: c = mchars_num2char(seq, len);
395: if ('\0' != c)
396: putchar(c);
1.82 kristaps 397: break;
1.132 kristaps 398: case (ESCAPE_SPECIAL):
1.147 kristaps 399: c = mchars_spec2cp(h->symtab, seq, len);
400: if (c > 0)
401: printf("&#%d;", c);
402: else if (-1 == c && 1 == len)
403: putchar((int)*seq);
1.132 kristaps 404: break;
405: case (ESCAPE_NOSPACE):
406: if ('\0' == *p)
407: nospace = 1;
1.88 kristaps 408: break;
1.82 kristaps 409: default:
410: break;
411: }
1.32 kristaps 412: }
1.85 kristaps 413:
414: return(nospace);
1.14 kristaps 415: }
416:
417:
1.94 kristaps 418: static void
419: print_attr(struct html *h, const char *key, const char *val)
420: {
421: printf(" %s=\"", key);
422: (void)print_encode(h, val, 1);
423: putchar('\"');
424: }
425:
426:
1.51 kristaps 427: struct tag *
1.29 kristaps 428: print_otag(struct html *h, enum htmltag tag,
429: int sz, const struct htmlpair *p)
1.14 kristaps 430: {
1.29 kristaps 431: int i;
1.30 kristaps 432: struct tag *t;
433:
1.94 kristaps 434: /* Push this tags onto the stack of open scopes. */
435:
1.30 kristaps 436: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 437: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 438: t->tag = tag;
1.66 kristaps 439: t->next = h->tags.head;
440: h->tags.head = t;
1.30 kristaps 441: } else
442: t = NULL;
1.29 kristaps 443:
444: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 445: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
446: /* Manage keeps! */
447: if ( ! (HTML_KEEP & h->flags)) {
448: if (HTML_PREKEEP & h->flags)
449: h->flags |= HTML_KEEP;
450: putchar(' ');
451: } else
452: printf(" ");
453: }
1.29 kristaps 454:
1.109 kristaps 455: if ( ! (h->flags & HTML_NONOSPACE))
456: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 457: else
458: h->flags |= HTML_NOSPACE;
1.109 kristaps 459:
1.94 kristaps 460: /* Print out the tag name and attributes. */
461:
1.29 kristaps 462: printf("<%s", htmltags[tag].name);
1.94 kristaps 463: for (i = 0; i < sz; i++)
464: print_attr(h, htmlattrs[p[i].key], p[i].val);
465:
466: /* Add non-overridable attributes. */
467:
468: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
469: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
470: print_attr(h, "xml:lang", "en");
471: print_attr(h, "lang", "en");
1.29 kristaps 472: }
1.93 kristaps 473:
1.134 kristaps 474: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 475:
1.93 kristaps 476: if (HTML_AUTOCLOSE & htmltags[tag].flags)
477: switch (h->type) {
478: case (HTML_XHTML_1_0_STRICT):
479: putchar('/');
480: break;
481: default:
482: break;
483: }
484:
1.78 kristaps 485: putchar('>');
1.14 kristaps 486:
1.29 kristaps 487: h->flags |= HTML_NOSPACE;
1.117 kristaps 488:
489: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
490: putchar('\n');
491:
1.30 kristaps 492: return(t);
1.14 kristaps 493: }
494:
495:
1.29 kristaps 496: static void
497: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 498: {
499:
1.29 kristaps 500: printf("</%s>", htmltags[tag].name);
1.71 kristaps 501: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 502: h->flags |= HTML_NOSPACE;
1.78 kristaps 503: putchar('\n');
1.87 kristaps 504: }
1.14 kristaps 505: }
506:
1.51 kristaps 507: void
1.93 kristaps 508: print_gen_decls(struct html *h)
1.1 kristaps 509: {
1.93 kristaps 510: const char *doctype;
511: const char *dtd;
1.96 kristaps 512: const char *name;
1.93 kristaps 513:
514: switch (h->type) {
515: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 516: name = "HTML";
1.93 kristaps 517: doctype = "-//W3C//DTD HTML 4.01//EN";
518: dtd = "http://www.w3.org/TR/html4/strict.dtd";
519: break;
520: default:
1.141 kristaps 521: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 522: name = "html";
1.93 kristaps 523: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
524: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
525: break;
526: }
527:
1.96 kristaps 528: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
529: name, doctype, dtd);
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);
547: if (HTMLFONT_NONE != h->metac)
548: h->metaf = HTMLFONT_BOLD == h->metac ?
549: print_otag(h, TAG_B, 0, NULL) :
550: print_otag(h, TAG_I, 0, NULL);
551:
1.104 kristaps 552: assert(word);
1.149 kristaps 553: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 554: if ( ! (h->flags & HTML_NONOSPACE))
555: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 556: } else
557: h->flags |= HTML_NOSPACE;
1.122 kristaps 558:
559: if (h->metaf) {
560: print_tagq(h, h->metaf);
561: h->metaf = NULL;
562: }
1.113 schwarze 563:
564: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 565: }
1.30 kristaps 566:
567:
1.51 kristaps 568: void
1.30 kristaps 569: print_tagq(struct html *h, const struct tag *until)
570: {
571: struct tag *tag;
572:
1.66 kristaps 573: while ((tag = h->tags.head) != NULL) {
1.125 kristaps 574: /*
575: * Remember to close out and nullify the current
576: * meta-font and table, if applicable.
577: */
1.89 kristaps 578: if (tag == h->metaf)
579: h->metaf = NULL;
1.125 kristaps 580: if (tag == h->tblt)
581: h->tblt = NULL;
1.30 kristaps 582: print_ctag(h, tag->tag);
1.66 kristaps 583: h->tags.head = tag->next;
1.30 kristaps 584: free(tag);
585: if (until && tag == until)
586: return;
587: }
588: }
589:
590:
1.51 kristaps 591: void
1.30 kristaps 592: print_stagq(struct html *h, const struct tag *suntil)
593: {
594: struct tag *tag;
595:
1.66 kristaps 596: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 597: if (suntil && tag == suntil)
598: return;
1.125 kristaps 599: /*
600: * Remember to close out and nullify the current
601: * meta-font and table, if applicable.
602: */
1.89 kristaps 603: if (tag == h->metaf)
604: h->metaf = NULL;
1.125 kristaps 605: if (tag == h->tblt)
606: h->tblt = NULL;
1.30 kristaps 607: print_ctag(h, tag->tag);
1.66 kristaps 608: h->tags.head = tag->next;
1.30 kristaps 609: free(tag);
610: }
611: }
1.55 kristaps 612:
613: void
614: bufinit(struct html *h)
615: {
616:
617: h->buf[0] = '\0';
618: h->buflen = 0;
619: }
620:
621: void
1.58 kristaps 622: bufcat_style(struct html *h, const char *key, const char *val)
623: {
624:
625: bufcat(h, key);
1.141 kristaps 626: bufcat(h, ":");
1.58 kristaps 627: bufcat(h, val);
1.141 kristaps 628: bufcat(h, ";");
1.58 kristaps 629: }
630:
631: void
1.55 kristaps 632: bufcat(struct html *h, const char *p)
633: {
634:
1.141 kristaps 635: h->buflen = strlcat(h->buf, p, BUFSIZ);
636: assert(h->buflen < BUFSIZ);
1.55 kristaps 637: }
638:
639: void
1.141 kristaps 640: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 641: {
642: va_list ap;
643:
644: va_start(ap, fmt);
1.56 kristaps 645: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 646: BUFSIZ - h->buflen - 1, fmt, ap);
647: va_end(ap);
648: h->buflen = strlen(h->buf);
649: }
650:
1.141 kristaps 651: static void
1.55 kristaps 652: bufncat(struct html *h, const char *p, size_t sz)
653: {
654:
1.141 kristaps 655: assert(h->buflen + sz + 1 < BUFSIZ);
656: strncat(h->buf, p, sz);
1.55 kristaps 657: h->buflen += sz;
658: }
659:
660: void
661: buffmt_includes(struct html *h, const char *name)
662: {
663: const char *p, *pp;
664:
665: pp = h->base_includes;
1.61 kristaps 666:
1.143 kristaps 667: bufinit(h);
1.61 kristaps 668: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 669: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 670: switch (*(p + 1)) {
671: case('I'):
672: bufcat(h, name);
673: break;
674: default:
675: bufncat(h, p, 2);
676: break;
677: }
678: pp = p + 2;
679: }
680: if (pp)
681: bufcat(h, pp);
682: }
683:
684: void
685: buffmt_man(struct html *h,
686: const char *name, const char *sec)
687: {
688: const char *p, *pp;
689:
690: pp = h->base_man;
1.61 kristaps 691:
1.143 kristaps 692: bufinit(h);
1.61 kristaps 693: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 694: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 695: switch (*(p + 1)) {
696: case('S'):
1.58 kristaps 697: bufcat(h, sec ? sec : "1");
1.55 kristaps 698: break;
699: case('N'):
1.141 kristaps 700: bufcat_fmt(h, name);
1.55 kristaps 701: break;
702: default:
703: bufncat(h, p, 2);
704: break;
705: }
706: pp = p + 2;
707: }
708: if (pp)
709: bufcat(h, pp);
710: }
1.58 kristaps 711:
712: void
713: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
714: {
1.62 kristaps 715: double v;
1.58 kristaps 716:
717: v = su->scale;
1.140 kristaps 718: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
719: v = 1.0;
1.58 kristaps 720:
1.141 kristaps 721: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 722: }
1.68 kristaps 723:
724: void
1.142 kristaps 725: bufcat_id(struct html *h, const char *src)
1.68 kristaps 726: {
727:
728: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
729:
1.142 kristaps 730: while ('\0' != *src)
731: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 732: }
CVSweb