Annotation of mandoc/html.c, Revision 1.121
1.121 ! kristaps 1: /* $Id: html.c,v 1.120 2010/12/20 13:07:55 kristaps Exp $ */
1.1 kristaps 2: /*
1.106 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.29 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.29 kristaps 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
1.92 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.41 kristaps 21: #include <sys/types.h>
1.30 kristaps 22:
1.1 kristaps 23: #include <assert.h>
1.68 kristaps 24: #include <ctype.h>
1.76 kristaps 25: #include <stdarg.h>
1.29 kristaps 26: #include <stdio.h>
1.63 kristaps 27: #include <stdint.h>
1.1 kristaps 28: #include <stdlib.h>
1.33 kristaps 29: #include <string.h>
1.45 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
1.100 kristaps 32: #include "mandoc.h"
1.58 kristaps 33: #include "out.h"
1.32 kristaps 34: #include "chars.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 */
1.116 kristaps 71: {"p", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */
1.118 kristaps 72: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 73: {"b", 0 }, /* TAG_B */
1.120 kristaps 74: {"i", 0 }, /* TAG_I */
75: {"u", 0 }, /* TAG_U */
1.121 ! kristaps 76: {"code", 0 }, /* TAG_CODE */
1.29 kristaps 77: };
1.10 kristaps 78:
1.90 kristaps 79: static const char *const htmlfonts[HTMLFONT_MAX] = {
80: "roman",
81: "bold",
82: "italic"
83: };
84:
1.82 kristaps 85: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 86: "http-equiv", /* ATTR_HTTPEQUIV */
87: "content", /* ATTR_CONTENT */
88: "name", /* ATTR_NAME */
89: "rel", /* ATTR_REL */
90: "href", /* ATTR_HREF */
91: "type", /* ATTR_TYPE */
92: "media", /* ATTR_MEDIA */
93: "class", /* ATTR_CLASS */
94: "style", /* ATTR_STYLE */
95: "width", /* ATTR_WIDTH */
96: "id", /* ATTR_ID */
97: "summary", /* ATTR_SUMMARY */
98: "align", /* ATTR_ALIGN */
1.29 kristaps 99: };
1.10 kristaps 100:
1.108 kristaps 101: static void print_spec(struct html *, enum roffdeco,
102: const char *, size_t);
1.83 kristaps 103: static void print_res(struct html *, const char *, size_t);
1.82 kristaps 104: static void print_ctag(struct html *, enum htmltag);
1.93 kristaps 105: static void print_doctype(struct html *);
106: static void print_xmltype(struct html *);
1.88 kristaps 107: static int print_encode(struct html *, const char *, int);
108: static void print_metaf(struct html *, enum roffdeco);
1.94 kristaps 109: static void print_attr(struct html *,
110: const char *, const char *);
1.93 kristaps 111: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 112:
113:
1.93 kristaps 114: static void *
115: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 116: {
1.30 kristaps 117: struct html *h;
1.63 kristaps 118: const char *toks[4];
119: char *v;
1.43 kristaps 120:
121: toks[0] = "style";
1.53 kristaps 122: toks[1] = "man";
1.54 kristaps 123: toks[2] = "includes";
124: toks[3] = NULL;
1.30 kristaps 125:
1.72 kristaps 126: h = calloc(1, sizeof(struct html));
127: if (NULL == h) {
1.75 kristaps 128: perror(NULL);
1.112 kristaps 129: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 130: }
1.10 kristaps 131:
1.93 kristaps 132: h->type = type;
1.66 kristaps 133: h->tags.head = NULL;
1.72 kristaps 134: h->symtab = chars_init(CHARS_HTML);
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)
184: chars_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:
1.33 kristaps 220:
1.29 kristaps 221: static void
1.108 kristaps 222: print_spec(struct html *h, enum roffdeco d, const char *p, size_t len)
1.32 kristaps 223: {
1.107 kristaps 224: int cp;
1.32 kristaps 225: const char *rhs;
226: size_t sz;
227:
1.107 kristaps 228: if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
229: printf("&#%d;", cp);
230: return;
1.108 kristaps 231: } else if (-1 == cp && DECO_SSPECIAL == d) {
232: fwrite(p, 1, len, stdout);
233: return;
1.107 kristaps 234: } else if (-1 == cp)
235: return;
1.32 kristaps 236:
1.107 kristaps 237: if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
238: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 239: }
240:
1.33 kristaps 241:
1.32 kristaps 242: static void
1.83 kristaps 243: print_res(struct html *h, const char *p, size_t len)
1.32 kristaps 244: {
1.107 kristaps 245: int cp;
1.32 kristaps 246: const char *rhs;
247: size_t sz;
248:
1.107 kristaps 249: if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
250: printf("&#%d;", cp);
251: return;
252: } else if (-1 == cp)
253: return;
1.32 kristaps 254:
1.107 kristaps 255: if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
256: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 257: }
258:
1.33 kristaps 259:
1.90 kristaps 260: struct tag *
261: print_ofont(struct html *h, enum htmlfont font)
262: {
263: struct htmlpair tag;
264:
265: h->metal = h->metac;
266: h->metac = font;
267:
268: /* FIXME: DECO_ROMAN should just close out preexisting. */
269:
1.91 kristaps 270: if (h->metaf && h->tags.head == h->metaf)
1.90 kristaps 271: print_tagq(h, h->metaf);
272:
273: PAIR_CLASS_INIT(&tag, htmlfonts[font]);
274: h->metaf = print_otag(h, TAG_SPAN, 1, &tag);
275: return(h->metaf);
276: }
277:
278:
1.88 kristaps 279: static void
280: print_metaf(struct html *h, enum roffdeco deco)
281: {
1.90 kristaps 282: enum htmlfont font;
1.88 kristaps 283:
284: switch (deco) {
1.90 kristaps 285: case (DECO_PREVIOUS):
286: font = h->metal;
1.88 kristaps 287: break;
288: case (DECO_ITALIC):
1.90 kristaps 289: font = HTMLFONT_ITALIC;
290: break;
291: case (DECO_BOLD):
292: font = HTMLFONT_BOLD;
1.88 kristaps 293: break;
294: case (DECO_ROMAN):
1.90 kristaps 295: font = HTMLFONT_NONE;
1.88 kristaps 296: break;
297: default:
298: abort();
299: /* NOTREACHED */
300: }
301:
1.90 kristaps 302: (void)print_ofont(h, font);
1.88 kristaps 303: }
304:
305:
1.85 kristaps 306: static int
1.88 kristaps 307: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 308: {
1.77 kristaps 309: size_t sz;
1.85 kristaps 310: int len, nospace;
1.82 kristaps 311: const char *seq;
312: enum roffdeco deco;
1.100 kristaps 313: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 314:
1.85 kristaps 315: nospace = 0;
316:
1.32 kristaps 317: for (; *p; p++) {
1.100 kristaps 318: sz = strcspn(p, rejs);
1.77 kristaps 319:
320: fwrite(p, 1, sz, stdout);
1.80 kristaps 321: p += /* LINTED */
322: sz;
1.77 kristaps 323:
1.82 kristaps 324: if ('<' == *p) {
325: printf("<");
326: continue;
327: } else if ('>' == *p) {
328: printf(">");
329: continue;
330: } else if ('&' == *p) {
331: printf("&");
1.34 kristaps 332: continue;
1.100 kristaps 333: } else if (ASCII_HYPH == *p) {
334: /*
335: * Note: "soft hyphens" aren't graphically
336: * displayed when not breaking the text; we want
337: * them to be displayed.
338: */
339: /*printf("­");*/
340: putchar('-');
341: continue;
1.77 kristaps 342: } else if ('\0' == *p)
343: break;
344:
1.82 kristaps 345: seq = ++p;
346: len = a2roffdeco(&deco, &seq, &sz);
347:
348: switch (deco) {
349: case (DECO_RESERVED):
350: print_res(h, seq, sz);
351: break;
1.108 kristaps 352: case (DECO_SSPECIAL):
353: /* FALLTHROUGH */
1.82 kristaps 354: case (DECO_SPECIAL):
1.108 kristaps 355: print_spec(h, deco, seq, sz);
1.82 kristaps 356: break;
1.90 kristaps 357: case (DECO_PREVIOUS):
358: /* FALLTHROUGH */
1.88 kristaps 359: case (DECO_BOLD):
360: /* FALLTHROUGH */
361: case (DECO_ITALIC):
362: /* FALLTHROUGH */
363: case (DECO_ROMAN):
364: if (norecurse)
365: break;
366: print_metaf(h, deco);
367: break;
1.82 kristaps 368: default:
369: break;
370: }
371:
372: p += len - 1;
1.84 kristaps 373:
374: if (DECO_NOSPACE == deco && '\0' == *(p + 1))
1.85 kristaps 375: nospace = 1;
1.32 kristaps 376: }
1.85 kristaps 377:
378: return(nospace);
1.14 kristaps 379: }
380:
381:
1.94 kristaps 382: static void
383: print_attr(struct html *h, const char *key, const char *val)
384: {
385: printf(" %s=\"", key);
386: (void)print_encode(h, val, 1);
387: putchar('\"');
388: }
389:
390:
1.51 kristaps 391: struct tag *
1.29 kristaps 392: print_otag(struct html *h, enum htmltag tag,
393: int sz, const struct htmlpair *p)
1.14 kristaps 394: {
1.29 kristaps 395: int i;
1.30 kristaps 396: struct tag *t;
397:
1.94 kristaps 398: /* Push this tags onto the stack of open scopes. */
399:
1.30 kristaps 400: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.72 kristaps 401: t = malloc(sizeof(struct tag));
402: if (NULL == t) {
1.75 kristaps 403: perror(NULL);
1.112 kristaps 404: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 405: }
1.30 kristaps 406: t->tag = tag;
1.66 kristaps 407: t->next = h->tags.head;
408: h->tags.head = t;
1.30 kristaps 409: } else
410: t = NULL;
1.29 kristaps 411:
412: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 413: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
414: /* Manage keeps! */
415: if ( ! (HTML_KEEP & h->flags)) {
416: if (HTML_PREKEEP & h->flags)
417: h->flags |= HTML_KEEP;
418: putchar(' ');
419: } else
420: printf(" ");
421: }
1.29 kristaps 422:
1.109 kristaps 423: if ( ! (h->flags & HTML_NONOSPACE))
424: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 425: else
426: h->flags |= HTML_NOSPACE;
1.109 kristaps 427:
1.94 kristaps 428: /* Print out the tag name and attributes. */
429:
1.29 kristaps 430: printf("<%s", htmltags[tag].name);
1.94 kristaps 431: for (i = 0; i < sz; i++)
432: print_attr(h, htmlattrs[p[i].key], p[i].val);
433:
434: /* Add non-overridable attributes. */
435:
436: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
437: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
438: print_attr(h, "xml:lang", "en");
439: print_attr(h, "lang", "en");
1.29 kristaps 440: }
1.93 kristaps 441:
1.94 kristaps 442: /* Accomodate for XML "well-formed" singleton escaping. */
443:
1.93 kristaps 444: if (HTML_AUTOCLOSE & htmltags[tag].flags)
445: switch (h->type) {
446: case (HTML_XHTML_1_0_STRICT):
447: putchar('/');
448: break;
449: default:
450: break;
451: }
452:
1.78 kristaps 453: putchar('>');
1.14 kristaps 454:
1.29 kristaps 455: h->flags |= HTML_NOSPACE;
1.117 kristaps 456:
457: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
458: putchar('\n');
459:
1.30 kristaps 460: return(t);
1.14 kristaps 461: }
462:
463:
1.29 kristaps 464: static void
465: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 466: {
467:
1.29 kristaps 468: printf("</%s>", htmltags[tag].name);
1.71 kristaps 469: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 470: h->flags |= HTML_NOSPACE;
1.78 kristaps 471: putchar('\n');
1.87 kristaps 472: }
1.14 kristaps 473: }
474:
475:
1.51 kristaps 476: void
1.93 kristaps 477: print_gen_decls(struct html *h)
1.1 kristaps 478: {
1.93 kristaps 479:
480: print_xmltype(h);
481: print_doctype(h);
482: }
483:
484:
485: static void
486: print_xmltype(struct html *h)
487: {
488:
1.100 kristaps 489: if (HTML_XHTML_1_0_STRICT == h->type)
1.121 ! kristaps 490: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.93 kristaps 491: }
492:
493:
494: static void
495: print_doctype(struct html *h)
496: {
497: const char *doctype;
498: const char *dtd;
1.96 kristaps 499: const char *name;
1.93 kristaps 500:
501: switch (h->type) {
502: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 503: name = "HTML";
1.93 kristaps 504: doctype = "-//W3C//DTD HTML 4.01//EN";
505: dtd = "http://www.w3.org/TR/html4/strict.dtd";
506: break;
507: default:
1.96 kristaps 508: name = "html";
1.93 kristaps 509: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
510: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
511: break;
512: }
513:
1.96 kristaps 514: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
515: name, doctype, dtd);
1.1 kristaps 516: }
517:
518:
1.51 kristaps 519: void
1.104 kristaps 520: print_text(struct html *h, const char *word)
1.1 kristaps 521: {
522:
1.104 kristaps 523: if (word[0] && '\0' == word[1])
524: switch (word[0]) {
1.29 kristaps 525: case('.'):
526: /* FALLTHROUGH */
527: case(','):
528: /* FALLTHROUGH */
529: case(';'):
530: /* FALLTHROUGH */
531: case(':'):
532: /* FALLTHROUGH */
533: case('?'):
534: /* FALLTHROUGH */
535: case('!'):
536: /* FALLTHROUGH */
537: case(')'):
538: /* FALLTHROUGH */
539: case(']'):
1.52 kristaps 540: if ( ! (HTML_IGNDELIM & h->flags))
541: h->flags |= HTML_NOSPACE;
1.30 kristaps 542: break;
1.29 kristaps 543: default:
544: break;
545: }
1.1 kristaps 546:
1.105 kristaps 547: if ( ! (HTML_NOSPACE & h->flags)) {
548: /* Manage keeps! */
549: if ( ! (HTML_KEEP & h->flags)) {
550: if (HTML_PREKEEP & h->flags)
551: h->flags |= HTML_KEEP;
552: putchar(' ');
553: } else
554: printf(" ");
555: }
1.30 kristaps 556:
1.104 kristaps 557: assert(word);
558: if ( ! print_encode(h, word, 0))
1.109 kristaps 559: if ( ! (h->flags & HTML_NONOSPACE))
560: h->flags &= ~HTML_NOSPACE;
1.113 schwarze 561:
562: h->flags &= ~HTML_IGNDELIM;
1.8 kristaps 563:
1.98 kristaps 564: /*
565: * Note that we don't process the pipe: the parser sees it as
566: * punctuation, but we don't in terms of typography.
567: */
1.104 kristaps 568: if (word[0] && '\0' == word[1])
569: switch (word[0]) {
1.29 kristaps 570: case('('):
571: /* FALLTHROUGH */
572: case('['):
573: h->flags |= HTML_NOSPACE;
1.30 kristaps 574: break;
1.29 kristaps 575: default:
576: break;
577: }
1.1 kristaps 578: }
1.30 kristaps 579:
580:
1.51 kristaps 581: void
1.30 kristaps 582: print_tagq(struct html *h, const struct tag *until)
583: {
584: struct tag *tag;
585:
1.66 kristaps 586: while ((tag = h->tags.head) != NULL) {
1.89 kristaps 587: if (tag == h->metaf)
588: h->metaf = NULL;
1.30 kristaps 589: print_ctag(h, tag->tag);
1.66 kristaps 590: h->tags.head = tag->next;
1.30 kristaps 591: free(tag);
592: if (until && tag == until)
593: return;
594: }
595: }
596:
597:
1.51 kristaps 598: void
1.30 kristaps 599: print_stagq(struct html *h, const struct tag *suntil)
600: {
601: struct tag *tag;
602:
1.66 kristaps 603: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 604: if (suntil && tag == suntil)
605: return;
1.89 kristaps 606: if (tag == h->metaf)
607: h->metaf = NULL;
1.30 kristaps 608: print_ctag(h, tag->tag);
1.66 kristaps 609: h->tags.head = tag->next;
1.30 kristaps 610: free(tag);
611: }
612: }
1.55 kristaps 613:
614:
615: void
616: bufinit(struct html *h)
617: {
618:
619: h->buf[0] = '\0';
620: h->buflen = 0;
621: }
622:
623:
624: void
1.58 kristaps 625: bufcat_style(struct html *h, const char *key, const char *val)
626: {
627:
628: bufcat(h, key);
629: bufncat(h, ":", 1);
630: bufcat(h, val);
631: bufncat(h, ";", 1);
632: }
633:
634:
635: void
1.55 kristaps 636: bufcat(struct html *h, const char *p)
637: {
638:
639: bufncat(h, p, strlen(p));
640: }
641:
642:
643: void
644: buffmt(struct html *h, const char *fmt, ...)
645: {
646: va_list ap;
647:
648: va_start(ap, fmt);
1.56 kristaps 649: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 650: BUFSIZ - h->buflen - 1, fmt, ap);
651: va_end(ap);
652: h->buflen = strlen(h->buf);
653: }
654:
655:
656: void
657: bufncat(struct html *h, const char *p, size_t sz)
658: {
659:
660: if (h->buflen + sz > BUFSIZ - 1)
661: sz = BUFSIZ - 1 - h->buflen;
662:
663: (void)strncat(h->buf, p, sz);
664: h->buflen += sz;
665: }
666:
667:
668: void
669: buffmt_includes(struct html *h, const char *name)
670: {
671: const char *p, *pp;
672:
673: pp = h->base_includes;
1.61 kristaps 674:
675: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 676: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 677: switch (*(p + 1)) {
678: case('I'):
679: bufcat(h, name);
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: }
690:
691:
692: void
693: buffmt_man(struct html *h,
694: const char *name, const char *sec)
695: {
696: const char *p, *pp;
697:
698: pp = h->base_man;
1.61 kristaps 699:
700: /* LINTED */
701: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 702: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 703: switch (*(p + 1)) {
704: case('S'):
1.58 kristaps 705: bufcat(h, sec ? sec : "1");
1.55 kristaps 706: break;
707: case('N'):
1.58 kristaps 708: buffmt(h, name);
1.55 kristaps 709: break;
710: default:
711: bufncat(h, p, 2);
712: break;
713: }
714: pp = p + 2;
715: }
716: if (pp)
717: bufcat(h, pp);
718: }
1.58 kristaps 719:
720:
721: void
722: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
723: {
1.62 kristaps 724: double v;
1.63 kristaps 725: const char *u;
1.58 kristaps 726:
727: v = su->scale;
728:
729: switch (su->unit) {
730: case (SCALE_CM):
731: u = "cm";
732: break;
733: case (SCALE_IN):
734: u = "in";
735: break;
736: case (SCALE_PC):
737: u = "pc";
738: break;
739: case (SCALE_PT):
740: u = "pt";
741: break;
1.59 kristaps 742: case (SCALE_EM):
743: u = "em";
744: break;
1.58 kristaps 745: case (SCALE_MM):
746: if (0 == (v /= 100))
747: v = 1;
748: u = "em";
749: break;
1.59 kristaps 750: case (SCALE_EN):
751: u = "ex";
752: break;
753: case (SCALE_BU):
754: u = "ex";
755: break;
1.58 kristaps 756: case (SCALE_VS):
757: u = "em";
758: break;
759: default:
760: u = "ex";
761: break;
762: }
763:
1.103 kristaps 764: /*
765: * XXX: the CSS spec isn't clear as to which types accept
766: * integer or real numbers, so we just make them all decimals.
767: */
768: buffmt(h, "%s: %.2f%s;", p, v, u);
1.58 kristaps 769: }
1.65 kristaps 770:
1.68 kristaps 771:
772: void
1.70 kristaps 773: html_idcat(char *dst, const char *src, int sz)
1.68 kristaps 774: {
1.70 kristaps 775: int ssz;
1.68 kristaps 776:
777: assert(sz);
778:
779: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
780:
1.70 kristaps 781: for ( ; *dst != '\0' && sz; dst++, sz--)
1.68 kristaps 782: /* Jump to end. */ ;
783:
1.70 kristaps 784: assert(sz > 2);
1.68 kristaps 785:
1.70 kristaps 786: /* We can't start with a number (bah). */
1.68 kristaps 787:
1.70 kristaps 788: *dst++ = 'x';
1.68 kristaps 789: *dst = '\0';
1.70 kristaps 790: sz--;
791:
792: for ( ; *src != '\0' && sz > 1; src++) {
1.73 kristaps 793: ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
1.70 kristaps 794: sz -= ssz;
795: dst += ssz;
796: }
1.68 kristaps 797: }
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