Annotation of mandoc/html.c, Revision 1.146
1.146 ! kristaps 1: /* $Id: html.c,v 1.145 2011/05/18 23:59:08 kristaps Exp $ */
1.1 kristaps 2: /*
1.126 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2011 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_spec(struct html *, const char *, size_t);
112: static void print_ctag(struct html *, enum htmltag);
113: static int print_encode(struct html *, const char *, int);
114: static void print_metaf(struct html *, enum mandoc_esc);
115: static void print_attr(struct html *, const char *, const char *);
116: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 117:
1.93 kristaps 118: static void *
119: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 120: {
1.30 kristaps 121: struct html *h;
1.63 kristaps 122: const char *toks[4];
123: char *v;
1.43 kristaps 124:
125: toks[0] = "style";
1.53 kristaps 126: toks[1] = "man";
1.54 kristaps 127: toks[2] = "includes";
128: toks[3] = 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;
146: break;
1.43 kristaps 147: default:
148: break;
149: }
150:
1.30 kristaps 151: return(h);
1.29 kristaps 152: }
1.10 kristaps 153:
1.93 kristaps 154: void *
155: html_alloc(char *outopts)
156: {
157:
158: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
159: }
160:
161:
162: void *
163: xhtml_alloc(char *outopts)
164: {
165:
166: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
167: }
168:
1.33 kristaps 169:
1.29 kristaps 170: void
171: html_free(void *p)
172: {
1.30 kristaps 173: struct tag *tag;
174: struct html *h;
175:
176: h = (struct html *)p;
1.37 kristaps 177:
1.66 kristaps 178: while ((tag = h->tags.head) != NULL) {
179: h->tags.head = tag->next;
1.30 kristaps 180: free(tag);
181: }
1.36 kristaps 182:
183: if (h->symtab)
1.133 kristaps 184: mchars_free(h->symtab);
1.53 kristaps 185:
1.30 kristaps 186: free(h);
1.10 kristaps 187: }
1.2 kristaps 188:
1.33 kristaps 189:
1.51 kristaps 190: void
1.29 kristaps 191: print_gen_head(struct html *h)
192: {
1.41 kristaps 193: struct htmlpair tag[4];
194:
195: tag[0].key = ATTR_HTTPEQUIV;
196: tag[0].val = "Content-Type";
197: tag[1].key = ATTR_CONTENT;
198: tag[1].val = "text/html; charset=utf-8";
199: print_otag(h, TAG_META, 2, tag);
200:
201: tag[0].key = ATTR_NAME;
202: tag[0].val = "resource-type";
203: tag[1].key = ATTR_CONTENT;
204: tag[1].val = "document";
205: print_otag(h, TAG_META, 2, tag);
206:
207: if (h->style) {
208: tag[0].key = ATTR_REL;
209: tag[0].val = "stylesheet";
210: tag[1].key = ATTR_HREF;
211: tag[1].val = h->style;
212: tag[2].key = ATTR_TYPE;
213: tag[2].val = "text/css";
214: tag[3].key = ATTR_MEDIA;
215: tag[3].val = "all";
216: print_otag(h, TAG_LINK, 4, tag);
217: }
1.4 kristaps 218: }
219:
1.126 schwarze 220: static void
1.132 kristaps 221: print_spec(struct html *h, const char *p, size_t len)
1.32 kristaps 222: {
1.107 kristaps 223: int cp;
1.32 kristaps 224: const char *rhs;
225: size_t sz;
226:
1.133 kristaps 227: if ((cp = mchars_spec2cp(h->symtab, p, len)) > 0) {
1.107 kristaps 228: printf("&#%d;", cp);
229: return;
1.132 kristaps 230: } else if (-1 == cp && 1 == len) {
1.108 kristaps 231: fwrite(p, 1, len, stdout);
232: return;
1.107 kristaps 233: } else if (-1 == cp)
234: return;
1.32 kristaps 235:
1.133 kristaps 236: if (NULL != (rhs = mchars_spec2str(h->symtab, p, len, &sz)))
1.107 kristaps 237: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 238: }
239:
1.88 kristaps 240: static void
1.132 kristaps 241: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 242: {
1.90 kristaps 243: enum htmlfont font;
1.88 kristaps 244:
245: switch (deco) {
1.132 kristaps 246: case (ESCAPE_FONTPREV):
1.90 kristaps 247: font = h->metal;
1.88 kristaps 248: break;
1.132 kristaps 249: case (ESCAPE_FONTITALIC):
1.90 kristaps 250: font = HTMLFONT_ITALIC;
251: break;
1.132 kristaps 252: case (ESCAPE_FONTBOLD):
1.90 kristaps 253: font = HTMLFONT_BOLD;
1.88 kristaps 254: break;
1.145 kristaps 255: case (ESCAPE_FONT):
256: /* FALLTHROUGH */
1.132 kristaps 257: case (ESCAPE_FONTROMAN):
1.90 kristaps 258: font = HTMLFONT_NONE;
1.88 kristaps 259: break;
260: default:
261: abort();
262: /* NOTREACHED */
263: }
264:
1.122 kristaps 265: if (h->metaf) {
266: print_tagq(h, h->metaf);
267: h->metaf = NULL;
268: }
269:
270: h->metal = h->metac;
271: h->metac = font;
272:
273: if (HTMLFONT_NONE != font)
274: h->metaf = HTMLFONT_BOLD == font ?
275: print_otag(h, TAG_B, 0, NULL) :
276: print_otag(h, TAG_I, 0, NULL);
1.88 kristaps 277: }
278:
1.138 kristaps 279: int
280: html_strlen(const char *cp)
281: {
282: int ssz, sz;
283: const char *seq, *p;
284:
285: /*
286: * Account for escaped sequences within string length
287: * calculations. This follows the logic in term_strlen() as we
288: * must calculate the width of produced strings.
289: * Assume that characters are always width of "1". This is
290: * hacky, but it gets the job done for approximation of widths.
291: */
292:
293: sz = 0;
294: while (NULL != (p = strchr(cp, '\\'))) {
295: sz += (int)(p - cp);
296: ++cp;
297: switch (mandoc_escape(&cp, &seq, &ssz)) {
298: case (ESCAPE_ERROR):
299: return(sz);
1.144 kristaps 300: case (ESCAPE_UNICODE):
301: /* FALLTHROUGH */
1.139 kristaps 302: case (ESCAPE_NUMBERED):
303: /* FALLTHROUGH */
1.138 kristaps 304: case (ESCAPE_SPECIAL):
305: sz++;
306: break;
307: default:
308: break;
309: }
310: }
311:
312: assert(sz >= 0);
313: return(sz + strlen(cp));
314: }
1.88 kristaps 315:
1.85 kristaps 316: static int
1.88 kristaps 317: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 318: {
1.77 kristaps 319: size_t sz;
1.141 kristaps 320: int c, len, nospace;
1.82 kristaps 321: const char *seq;
1.132 kristaps 322: enum mandoc_esc esc;
1.100 kristaps 323: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 324:
1.85 kristaps 325: nospace = 0;
326:
1.132 kristaps 327: while ('\0' != *p) {
1.100 kristaps 328: sz = strcspn(p, rejs);
1.77 kristaps 329:
330: fwrite(p, 1, sz, stdout);
1.132 kristaps 331: p += (int)sz;
1.77 kristaps 332:
1.132 kristaps 333: if ('\0' == *p)
334: break;
335:
336: switch (*p++) {
337: case ('<'):
1.82 kristaps 338: printf("<");
339: continue;
1.132 kristaps 340: case ('>'):
1.82 kristaps 341: printf(">");
342: continue;
1.132 kristaps 343: case ('&'):
1.82 kristaps 344: printf("&");
1.34 kristaps 345: continue;
1.132 kristaps 346: case (ASCII_HYPH):
1.100 kristaps 347: putchar('-');
348: continue;
1.132 kristaps 349: default:
1.77 kristaps 350: break;
1.132 kristaps 351: }
1.77 kristaps 352:
1.132 kristaps 353: esc = mandoc_escape(&p, &seq, &len);
354: if (ESCAPE_ERROR == esc)
355: break;
1.82 kristaps 356:
1.132 kristaps 357: switch (esc) {
1.144 kristaps 358: case (ESCAPE_UNICODE):
359: /* Skip passed "u" header. */
360: c = mchars_num2uc(seq + 1, len - 1);
361: if ('\0' != c)
362: printf("&#x%x;", c);
363: break;
1.132 kristaps 364: case (ESCAPE_NUMBERED):
1.141 kristaps 365: c = mchars_num2char(seq, len);
366: if ('\0' != c)
367: putchar(c);
1.82 kristaps 368: break;
1.132 kristaps 369: case (ESCAPE_SPECIAL):
370: print_spec(h, seq, len);
1.82 kristaps 371: break;
1.145 kristaps 372: case (ESCAPE_FONT):
373: /* FALLTHROUGH */
1.132 kristaps 374: case (ESCAPE_FONTPREV):
1.90 kristaps 375: /* FALLTHROUGH */
1.132 kristaps 376: case (ESCAPE_FONTBOLD):
1.88 kristaps 377: /* FALLTHROUGH */
1.132 kristaps 378: case (ESCAPE_FONTITALIC):
1.88 kristaps 379: /* FALLTHROUGH */
1.132 kristaps 380: case (ESCAPE_FONTROMAN):
1.88 kristaps 381: if (norecurse)
382: break;
1.132 kristaps 383: print_metaf(h, esc);
384: break;
385: case (ESCAPE_NOSPACE):
386: if ('\0' == *p)
387: nospace = 1;
1.88 kristaps 388: break;
1.82 kristaps 389: default:
390: break;
391: }
1.32 kristaps 392: }
1.85 kristaps 393:
394: return(nospace);
1.14 kristaps 395: }
396:
397:
1.94 kristaps 398: static void
399: print_attr(struct html *h, const char *key, const char *val)
400: {
401: printf(" %s=\"", key);
402: (void)print_encode(h, val, 1);
403: putchar('\"');
404: }
405:
406:
1.51 kristaps 407: struct tag *
1.29 kristaps 408: print_otag(struct html *h, enum htmltag tag,
409: int sz, const struct htmlpair *p)
1.14 kristaps 410: {
1.29 kristaps 411: int i;
1.30 kristaps 412: struct tag *t;
413:
1.94 kristaps 414: /* Push this tags onto the stack of open scopes. */
415:
1.30 kristaps 416: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 417: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 418: t->tag = tag;
1.66 kristaps 419: t->next = h->tags.head;
420: h->tags.head = t;
1.30 kristaps 421: } else
422: t = NULL;
1.29 kristaps 423:
424: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 425: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
426: /* Manage keeps! */
427: if ( ! (HTML_KEEP & h->flags)) {
428: if (HTML_PREKEEP & h->flags)
429: h->flags |= HTML_KEEP;
430: putchar(' ');
431: } else
432: printf(" ");
433: }
1.29 kristaps 434:
1.109 kristaps 435: if ( ! (h->flags & HTML_NONOSPACE))
436: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 437: else
438: h->flags |= HTML_NOSPACE;
1.109 kristaps 439:
1.94 kristaps 440: /* Print out the tag name and attributes. */
441:
1.29 kristaps 442: printf("<%s", htmltags[tag].name);
1.94 kristaps 443: for (i = 0; i < sz; i++)
444: print_attr(h, htmlattrs[p[i].key], p[i].val);
445:
446: /* Add non-overridable attributes. */
447:
448: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
449: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
450: print_attr(h, "xml:lang", "en");
451: print_attr(h, "lang", "en");
1.29 kristaps 452: }
1.93 kristaps 453:
1.134 kristaps 454: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 455:
1.93 kristaps 456: if (HTML_AUTOCLOSE & htmltags[tag].flags)
457: switch (h->type) {
458: case (HTML_XHTML_1_0_STRICT):
459: putchar('/');
460: break;
461: default:
462: break;
463: }
464:
1.78 kristaps 465: putchar('>');
1.14 kristaps 466:
1.29 kristaps 467: h->flags |= HTML_NOSPACE;
1.117 kristaps 468:
469: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
470: putchar('\n');
471:
1.30 kristaps 472: return(t);
1.14 kristaps 473: }
474:
475:
1.29 kristaps 476: static void
477: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 478: {
479:
1.29 kristaps 480: printf("</%s>", htmltags[tag].name);
1.71 kristaps 481: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 482: h->flags |= HTML_NOSPACE;
1.78 kristaps 483: putchar('\n');
1.87 kristaps 484: }
1.14 kristaps 485: }
486:
1.51 kristaps 487: void
1.93 kristaps 488: print_gen_decls(struct html *h)
1.1 kristaps 489: {
1.93 kristaps 490: const char *doctype;
491: const char *dtd;
1.96 kristaps 492: const char *name;
1.93 kristaps 493:
494: switch (h->type) {
495: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 496: name = "HTML";
1.93 kristaps 497: doctype = "-//W3C//DTD HTML 4.01//EN";
498: dtd = "http://www.w3.org/TR/html4/strict.dtd";
499: break;
500: default:
1.141 kristaps 501: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 502: name = "html";
1.93 kristaps 503: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
504: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
505: break;
506: }
507:
1.96 kristaps 508: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
509: name, doctype, dtd);
1.1 kristaps 510: }
511:
1.51 kristaps 512: void
1.104 kristaps 513: print_text(struct html *h, const char *word)
1.1 kristaps 514: {
515:
1.105 kristaps 516: if ( ! (HTML_NOSPACE & h->flags)) {
517: /* Manage keeps! */
518: if ( ! (HTML_KEEP & h->flags)) {
519: if (HTML_PREKEEP & h->flags)
520: h->flags |= HTML_KEEP;
521: putchar(' ');
522: } else
523: printf(" ");
524: }
1.30 kristaps 525:
1.122 kristaps 526: assert(NULL == h->metaf);
527: if (HTMLFONT_NONE != h->metac)
528: h->metaf = HTMLFONT_BOLD == h->metac ?
529: print_otag(h, TAG_B, 0, NULL) :
530: print_otag(h, TAG_I, 0, NULL);
531:
1.104 kristaps 532: assert(word);
533: if ( ! print_encode(h, word, 0))
1.109 kristaps 534: if ( ! (h->flags & HTML_NONOSPACE))
535: h->flags &= ~HTML_NOSPACE;
1.122 kristaps 536:
537: if (h->metaf) {
538: print_tagq(h, h->metaf);
539: h->metaf = NULL;
540: }
1.113 schwarze 541:
542: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 543: }
1.30 kristaps 544:
545:
1.51 kristaps 546: void
1.30 kristaps 547: print_tagq(struct html *h, const struct tag *until)
548: {
549: struct tag *tag;
550:
1.66 kristaps 551: while ((tag = h->tags.head) != NULL) {
1.125 kristaps 552: /*
553: * Remember to close out and nullify the current
554: * meta-font and table, if applicable.
555: */
1.89 kristaps 556: if (tag == h->metaf)
557: h->metaf = NULL;
1.125 kristaps 558: if (tag == h->tblt)
559: h->tblt = NULL;
1.30 kristaps 560: print_ctag(h, tag->tag);
1.66 kristaps 561: h->tags.head = tag->next;
1.30 kristaps 562: free(tag);
563: if (until && tag == until)
564: return;
565: }
566: }
567:
568:
1.51 kristaps 569: void
1.30 kristaps 570: print_stagq(struct html *h, const struct tag *suntil)
571: {
572: struct tag *tag;
573:
1.66 kristaps 574: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 575: if (suntil && tag == suntil)
576: return;
1.125 kristaps 577: /*
578: * Remember to close out and nullify the current
579: * meta-font and table, if applicable.
580: */
1.89 kristaps 581: if (tag == h->metaf)
582: h->metaf = NULL;
1.125 kristaps 583: if (tag == h->tblt)
584: h->tblt = NULL;
1.30 kristaps 585: print_ctag(h, tag->tag);
1.66 kristaps 586: h->tags.head = tag->next;
1.30 kristaps 587: free(tag);
588: }
589: }
1.55 kristaps 590:
591: void
592: bufinit(struct html *h)
593: {
594:
595: h->buf[0] = '\0';
596: h->buflen = 0;
597: }
598:
599: void
1.58 kristaps 600: bufcat_style(struct html *h, const char *key, const char *val)
601: {
602:
603: bufcat(h, key);
1.141 kristaps 604: bufcat(h, ":");
1.58 kristaps 605: bufcat(h, val);
1.141 kristaps 606: bufcat(h, ";");
1.58 kristaps 607: }
608:
609: void
1.55 kristaps 610: bufcat(struct html *h, const char *p)
611: {
612:
1.141 kristaps 613: h->buflen = strlcat(h->buf, p, BUFSIZ);
614: assert(h->buflen < BUFSIZ);
615: h->buflen--;
1.55 kristaps 616: }
617:
618: void
1.141 kristaps 619: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 620: {
621: va_list ap;
622:
623: va_start(ap, fmt);
1.56 kristaps 624: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 625: BUFSIZ - h->buflen - 1, fmt, ap);
626: va_end(ap);
627: h->buflen = strlen(h->buf);
628: }
629:
1.141 kristaps 630: static void
1.55 kristaps 631: bufncat(struct html *h, const char *p, size_t sz)
632: {
633:
1.141 kristaps 634: assert(h->buflen + sz + 1 < BUFSIZ);
635: strncat(h->buf, p, sz);
1.55 kristaps 636: h->buflen += sz;
637: }
638:
639: void
640: buffmt_includes(struct html *h, const char *name)
641: {
642: const char *p, *pp;
643:
644: pp = h->base_includes;
1.61 kristaps 645:
1.143 kristaps 646: bufinit(h);
1.61 kristaps 647: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 648: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 649: switch (*(p + 1)) {
650: case('I'):
651: bufcat(h, name);
652: break;
653: default:
654: bufncat(h, p, 2);
655: break;
656: }
657: pp = p + 2;
658: }
659: if (pp)
660: bufcat(h, pp);
661: }
662:
663: void
664: buffmt_man(struct html *h,
665: const char *name, const char *sec)
666: {
667: const char *p, *pp;
668:
669: pp = h->base_man;
1.61 kristaps 670:
1.143 kristaps 671: bufinit(h);
1.61 kristaps 672: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 673: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 674: switch (*(p + 1)) {
675: case('S'):
1.58 kristaps 676: bufcat(h, sec ? sec : "1");
1.55 kristaps 677: break;
678: case('N'):
1.141 kristaps 679: bufcat_fmt(h, name);
1.55 kristaps 680: break;
681: default:
682: bufncat(h, p, 2);
683: break;
684: }
685: pp = p + 2;
686: }
687: if (pp)
688: bufcat(h, pp);
689: }
1.58 kristaps 690:
691: void
692: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
693: {
1.62 kristaps 694: double v;
1.58 kristaps 695:
696: v = su->scale;
1.140 kristaps 697: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
698: v = 1.0;
1.58 kristaps 699:
1.141 kristaps 700: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 701: }
1.68 kristaps 702:
703: void
1.142 kristaps 704: bufcat_id(struct html *h, const char *src)
1.68 kristaps 705: {
706:
707: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
708:
1.142 kristaps 709: while ('\0' != *src)
710: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 711: }
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