Annotation of mandoc/html.c, Revision 1.124
1.124 ! schwarze 1: /* $Id: html.c,v 1.123 2010/12/24 14:14:00 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 */
1.121 kristaps 75: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 76: {"small", 0 }, /* TAG_SMALL */
1.90 kristaps 77: };
78:
1.82 kristaps 79: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 80: "http-equiv", /* ATTR_HTTPEQUIV */
81: "content", /* ATTR_CONTENT */
82: "name", /* ATTR_NAME */
83: "rel", /* ATTR_REL */
84: "href", /* ATTR_HREF */
85: "type", /* ATTR_TYPE */
86: "media", /* ATTR_MEDIA */
87: "class", /* ATTR_CLASS */
88: "style", /* ATTR_STYLE */
89: "width", /* ATTR_WIDTH */
90: "id", /* ATTR_ID */
91: "summary", /* ATTR_SUMMARY */
92: "align", /* ATTR_ALIGN */
1.29 kristaps 93: };
1.10 kristaps 94:
1.108 kristaps 95: static void print_spec(struct html *, enum roffdeco,
96: const char *, size_t);
1.83 kristaps 97: static void print_res(struct html *, const char *, size_t);
1.82 kristaps 98: static void print_ctag(struct html *, enum htmltag);
1.93 kristaps 99: static void print_doctype(struct html *);
100: static void print_xmltype(struct html *);
1.88 kristaps 101: static int print_encode(struct html *, const char *, int);
102: static void print_metaf(struct html *, enum roffdeco);
1.94 kristaps 103: static void print_attr(struct html *,
104: const char *, const char *);
1.93 kristaps 105: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 106:
107:
1.93 kristaps 108: static void *
109: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 110: {
1.30 kristaps 111: struct html *h;
1.63 kristaps 112: const char *toks[4];
113: char *v;
1.43 kristaps 114:
115: toks[0] = "style";
1.53 kristaps 116: toks[1] = "man";
1.54 kristaps 117: toks[2] = "includes";
118: toks[3] = NULL;
1.30 kristaps 119:
1.72 kristaps 120: h = calloc(1, sizeof(struct html));
121: if (NULL == h) {
1.75 kristaps 122: perror(NULL);
1.112 kristaps 123: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 124: }
1.10 kristaps 125:
1.93 kristaps 126: h->type = type;
1.66 kristaps 127: h->tags.head = NULL;
1.72 kristaps 128: h->symtab = chars_init(CHARS_HTML);
1.41 kristaps 129:
1.47 kristaps 130: while (outopts && *outopts)
1.63 kristaps 131: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.43 kristaps 132: case (0):
133: h->style = v;
134: break;
135: case (1):
1.53 kristaps 136: h->base_man = v;
1.43 kristaps 137: break;
1.54 kristaps 138: case (2):
139: h->base_includes = v;
140: break;
1.43 kristaps 141: default:
142: break;
143: }
144:
1.30 kristaps 145: return(h);
1.29 kristaps 146: }
1.10 kristaps 147:
1.93 kristaps 148: void *
149: html_alloc(char *outopts)
150: {
151:
152: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
153: }
154:
155:
156: void *
157: xhtml_alloc(char *outopts)
158: {
159:
160: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
161: }
162:
1.33 kristaps 163:
1.29 kristaps 164: void
165: html_free(void *p)
166: {
1.30 kristaps 167: struct tag *tag;
168: struct html *h;
169:
170: h = (struct html *)p;
1.37 kristaps 171:
1.66 kristaps 172: while ((tag = h->tags.head) != NULL) {
173: h->tags.head = tag->next;
1.30 kristaps 174: free(tag);
175: }
1.36 kristaps 176:
177: if (h->symtab)
178: chars_free(h->symtab);
1.53 kristaps 179:
1.30 kristaps 180: free(h);
1.10 kristaps 181: }
1.2 kristaps 182:
1.33 kristaps 183:
1.51 kristaps 184: void
1.29 kristaps 185: print_gen_head(struct html *h)
186: {
1.41 kristaps 187: struct htmlpair tag[4];
188:
189: tag[0].key = ATTR_HTTPEQUIV;
190: tag[0].val = "Content-Type";
191: tag[1].key = ATTR_CONTENT;
192: tag[1].val = "text/html; charset=utf-8";
193: print_otag(h, TAG_META, 2, tag);
194:
195: tag[0].key = ATTR_NAME;
196: tag[0].val = "resource-type";
197: tag[1].key = ATTR_CONTENT;
198: tag[1].val = "document";
199: print_otag(h, TAG_META, 2, tag);
200:
201: if (h->style) {
202: tag[0].key = ATTR_REL;
203: tag[0].val = "stylesheet";
204: tag[1].key = ATTR_HREF;
205: tag[1].val = h->style;
206: tag[2].key = ATTR_TYPE;
207: tag[2].val = "text/css";
208: tag[3].key = ATTR_MEDIA;
209: tag[3].val = "all";
210: print_otag(h, TAG_LINK, 4, tag);
211: }
1.4 kristaps 212: }
213:
1.33 kristaps 214:
1.29 kristaps 215: static void
1.108 kristaps 216: print_spec(struct html *h, enum roffdeco d, const char *p, size_t len)
1.32 kristaps 217: {
1.107 kristaps 218: int cp;
1.32 kristaps 219: const char *rhs;
220: size_t sz;
221:
1.107 kristaps 222: if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
223: printf("&#%d;", cp);
224: return;
1.108 kristaps 225: } else if (-1 == cp && DECO_SSPECIAL == d) {
226: fwrite(p, 1, len, stdout);
227: return;
1.107 kristaps 228: } else if (-1 == cp)
229: return;
1.32 kristaps 230:
1.107 kristaps 231: if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
232: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 233: }
234:
1.33 kristaps 235:
1.32 kristaps 236: static void
1.83 kristaps 237: print_res(struct html *h, const char *p, size_t len)
1.32 kristaps 238: {
1.107 kristaps 239: int cp;
1.32 kristaps 240: const char *rhs;
241: size_t sz;
242:
1.107 kristaps 243: if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
244: printf("&#%d;", cp);
245: return;
246: } else if (-1 == cp)
247: return;
1.32 kristaps 248:
1.107 kristaps 249: if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
250: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 251: }
252:
1.33 kristaps 253:
1.88 kristaps 254: static void
255: print_metaf(struct html *h, enum roffdeco deco)
256: {
1.90 kristaps 257: enum htmlfont font;
1.88 kristaps 258:
259: switch (deco) {
1.90 kristaps 260: case (DECO_PREVIOUS):
261: font = h->metal;
1.88 kristaps 262: break;
263: case (DECO_ITALIC):
1.90 kristaps 264: font = HTMLFONT_ITALIC;
265: break;
266: case (DECO_BOLD):
267: font = HTMLFONT_BOLD;
1.88 kristaps 268: break;
269: case (DECO_ROMAN):
1.90 kristaps 270: font = HTMLFONT_NONE;
1.88 kristaps 271: break;
272: default:
273: abort();
274: /* NOTREACHED */
275: }
276:
1.122 kristaps 277: if (h->metaf) {
278: print_tagq(h, h->metaf);
279: h->metaf = NULL;
280: }
281:
282: h->metal = h->metac;
283: h->metac = font;
284:
285: if (HTMLFONT_NONE != font)
286: h->metaf = HTMLFONT_BOLD == font ?
287: print_otag(h, TAG_B, 0, NULL) :
288: print_otag(h, TAG_I, 0, NULL);
1.88 kristaps 289: }
290:
291:
1.85 kristaps 292: static int
1.88 kristaps 293: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 294: {
1.77 kristaps 295: size_t sz;
1.85 kristaps 296: int len, nospace;
1.82 kristaps 297: const char *seq;
298: enum roffdeco deco;
1.100 kristaps 299: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 300:
1.85 kristaps 301: nospace = 0;
302:
1.32 kristaps 303: for (; *p; p++) {
1.100 kristaps 304: sz = strcspn(p, rejs);
1.77 kristaps 305:
306: fwrite(p, 1, sz, stdout);
1.80 kristaps 307: p += /* LINTED */
308: sz;
1.77 kristaps 309:
1.82 kristaps 310: if ('<' == *p) {
311: printf("<");
312: continue;
313: } else if ('>' == *p) {
314: printf(">");
315: continue;
316: } else if ('&' == *p) {
317: printf("&");
1.34 kristaps 318: continue;
1.100 kristaps 319: } else if (ASCII_HYPH == *p) {
320: /*
321: * Note: "soft hyphens" aren't graphically
322: * displayed when not breaking the text; we want
323: * them to be displayed.
324: */
325: /*printf("­");*/
326: putchar('-');
327: continue;
1.77 kristaps 328: } else if ('\0' == *p)
329: break;
330:
1.82 kristaps 331: seq = ++p;
332: len = a2roffdeco(&deco, &seq, &sz);
333:
334: switch (deco) {
335: case (DECO_RESERVED):
336: print_res(h, seq, sz);
337: break;
1.108 kristaps 338: case (DECO_SSPECIAL):
339: /* FALLTHROUGH */
1.82 kristaps 340: case (DECO_SPECIAL):
1.108 kristaps 341: print_spec(h, deco, seq, sz);
1.82 kristaps 342: break;
1.90 kristaps 343: case (DECO_PREVIOUS):
344: /* FALLTHROUGH */
1.88 kristaps 345: case (DECO_BOLD):
346: /* FALLTHROUGH */
347: case (DECO_ITALIC):
348: /* FALLTHROUGH */
349: case (DECO_ROMAN):
350: if (norecurse)
351: break;
352: print_metaf(h, deco);
353: break;
1.82 kristaps 354: default:
355: break;
356: }
357:
358: p += len - 1;
1.84 kristaps 359:
360: if (DECO_NOSPACE == deco && '\0' == *(p + 1))
1.85 kristaps 361: nospace = 1;
1.32 kristaps 362: }
1.85 kristaps 363:
364: return(nospace);
1.14 kristaps 365: }
366:
367:
1.94 kristaps 368: static void
369: print_attr(struct html *h, const char *key, const char *val)
370: {
371: printf(" %s=\"", key);
372: (void)print_encode(h, val, 1);
373: putchar('\"');
374: }
375:
376:
1.51 kristaps 377: struct tag *
1.29 kristaps 378: print_otag(struct html *h, enum htmltag tag,
379: int sz, const struct htmlpair *p)
1.14 kristaps 380: {
1.29 kristaps 381: int i;
1.30 kristaps 382: struct tag *t;
383:
1.94 kristaps 384: /* Push this tags onto the stack of open scopes. */
385:
1.30 kristaps 386: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.72 kristaps 387: t = malloc(sizeof(struct tag));
388: if (NULL == t) {
1.75 kristaps 389: perror(NULL);
1.112 kristaps 390: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 391: }
1.30 kristaps 392: t->tag = tag;
1.66 kristaps 393: t->next = h->tags.head;
394: h->tags.head = t;
1.30 kristaps 395: } else
396: t = NULL;
1.29 kristaps 397:
398: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 399: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
400: /* Manage keeps! */
401: if ( ! (HTML_KEEP & h->flags)) {
402: if (HTML_PREKEEP & h->flags)
403: h->flags |= HTML_KEEP;
404: putchar(' ');
405: } else
406: printf(" ");
407: }
1.29 kristaps 408:
1.109 kristaps 409: if ( ! (h->flags & HTML_NONOSPACE))
410: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 411: else
412: h->flags |= HTML_NOSPACE;
1.109 kristaps 413:
1.94 kristaps 414: /* Print out the tag name and attributes. */
415:
1.29 kristaps 416: printf("<%s", htmltags[tag].name);
1.94 kristaps 417: for (i = 0; i < sz; i++)
418: print_attr(h, htmlattrs[p[i].key], p[i].val);
419:
420: /* Add non-overridable attributes. */
421:
422: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
423: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
424: print_attr(h, "xml:lang", "en");
425: print_attr(h, "lang", "en");
1.29 kristaps 426: }
1.93 kristaps 427:
1.94 kristaps 428: /* Accomodate for XML "well-formed" singleton escaping. */
429:
1.93 kristaps 430: if (HTML_AUTOCLOSE & htmltags[tag].flags)
431: switch (h->type) {
432: case (HTML_XHTML_1_0_STRICT):
433: putchar('/');
434: break;
435: default:
436: break;
437: }
438:
1.78 kristaps 439: putchar('>');
1.14 kristaps 440:
1.29 kristaps 441: h->flags |= HTML_NOSPACE;
1.117 kristaps 442:
443: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
444: putchar('\n');
445:
1.30 kristaps 446: return(t);
1.14 kristaps 447: }
448:
449:
1.29 kristaps 450: static void
451: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 452: {
453:
1.29 kristaps 454: printf("</%s>", htmltags[tag].name);
1.71 kristaps 455: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 456: h->flags |= HTML_NOSPACE;
1.78 kristaps 457: putchar('\n');
1.87 kristaps 458: }
1.14 kristaps 459: }
460:
461:
1.51 kristaps 462: void
1.93 kristaps 463: print_gen_decls(struct html *h)
1.1 kristaps 464: {
1.93 kristaps 465:
466: print_xmltype(h);
467: print_doctype(h);
468: }
469:
470:
471: static void
472: print_xmltype(struct html *h)
473: {
474:
1.100 kristaps 475: if (HTML_XHTML_1_0_STRICT == h->type)
1.121 kristaps 476: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.93 kristaps 477: }
478:
479:
480: static void
481: print_doctype(struct html *h)
482: {
483: const char *doctype;
484: const char *dtd;
1.96 kristaps 485: const char *name;
1.93 kristaps 486:
487: switch (h->type) {
488: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 489: name = "HTML";
1.93 kristaps 490: doctype = "-//W3C//DTD HTML 4.01//EN";
491: dtd = "http://www.w3.org/TR/html4/strict.dtd";
492: break;
493: default:
1.96 kristaps 494: name = "html";
1.93 kristaps 495: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
496: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
497: break;
498: }
499:
1.96 kristaps 500: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
501: name, doctype, dtd);
1.1 kristaps 502: }
503:
504:
1.51 kristaps 505: void
1.104 kristaps 506: print_text(struct html *h, const char *word)
1.1 kristaps 507: {
508:
1.104 kristaps 509: if (word[0] && '\0' == word[1])
510: switch (word[0]) {
1.29 kristaps 511: case('.'):
512: /* FALLTHROUGH */
513: case(','):
514: /* FALLTHROUGH */
515: case(';'):
516: /* FALLTHROUGH */
517: case(':'):
518: /* FALLTHROUGH */
519: case('?'):
520: /* FALLTHROUGH */
521: case('!'):
522: /* FALLTHROUGH */
523: case(')'):
524: /* FALLTHROUGH */
525: case(']'):
1.52 kristaps 526: if ( ! (HTML_IGNDELIM & h->flags))
527: h->flags |= HTML_NOSPACE;
1.30 kristaps 528: break;
1.29 kristaps 529: default:
530: break;
531: }
1.1 kristaps 532:
1.105 kristaps 533: if ( ! (HTML_NOSPACE & h->flags)) {
534: /* Manage keeps! */
535: if ( ! (HTML_KEEP & h->flags)) {
536: if (HTML_PREKEEP & h->flags)
537: h->flags |= HTML_KEEP;
538: putchar(' ');
539: } else
540: printf(" ");
541: }
1.30 kristaps 542:
1.122 kristaps 543: assert(NULL == h->metaf);
544: if (HTMLFONT_NONE != h->metac)
545: h->metaf = HTMLFONT_BOLD == h->metac ?
546: print_otag(h, TAG_B, 0, NULL) :
547: print_otag(h, TAG_I, 0, NULL);
548:
1.104 kristaps 549: assert(word);
550: if ( ! print_encode(h, word, 0))
1.109 kristaps 551: if ( ! (h->flags & HTML_NONOSPACE))
552: h->flags &= ~HTML_NOSPACE;
1.122 kristaps 553:
554: if (h->metaf) {
555: print_tagq(h, h->metaf);
556: h->metaf = NULL;
557: }
1.113 schwarze 558:
559: h->flags &= ~HTML_IGNDELIM;
1.8 kristaps 560:
1.98 kristaps 561: /*
562: * Note that we don't process the pipe: the parser sees it as
563: * punctuation, but we don't in terms of typography.
564: */
1.104 kristaps 565: if (word[0] && '\0' == word[1])
566: switch (word[0]) {
1.29 kristaps 567: case('('):
568: /* FALLTHROUGH */
569: case('['):
570: h->flags |= HTML_NOSPACE;
1.30 kristaps 571: break;
1.29 kristaps 572: default:
573: break;
574: }
1.1 kristaps 575: }
1.30 kristaps 576:
577:
1.51 kristaps 578: void
1.30 kristaps 579: print_tagq(struct html *h, const struct tag *until)
580: {
581: struct tag *tag;
582:
1.66 kristaps 583: while ((tag = h->tags.head) != NULL) {
1.89 kristaps 584: if (tag == h->metaf)
585: h->metaf = NULL;
1.30 kristaps 586: print_ctag(h, tag->tag);
1.66 kristaps 587: h->tags.head = tag->next;
1.30 kristaps 588: free(tag);
589: if (until && tag == until)
590: return;
591: }
592: }
593:
594:
1.51 kristaps 595: void
1.30 kristaps 596: print_stagq(struct html *h, const struct tag *suntil)
597: {
598: struct tag *tag;
599:
1.66 kristaps 600: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 601: if (suntil && tag == suntil)
602: return;
1.89 kristaps 603: if (tag == h->metaf)
604: h->metaf = NULL;
1.30 kristaps 605: print_ctag(h, tag->tag);
1.66 kristaps 606: h->tags.head = tag->next;
1.30 kristaps 607: free(tag);
608: }
609: }
1.55 kristaps 610:
611:
612: void
613: bufinit(struct html *h)
614: {
615:
616: h->buf[0] = '\0';
617: h->buflen = 0;
618: }
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);
626: bufncat(h, ":", 1);
627: bufcat(h, val);
628: bufncat(h, ";", 1);
629: }
630:
631:
632: void
1.55 kristaps 633: bufcat(struct html *h, const char *p)
634: {
635:
636: bufncat(h, p, strlen(p));
637: }
638:
639:
640: void
641: buffmt(struct html *h, const char *fmt, ...)
642: {
643: va_list ap;
644:
645: va_start(ap, fmt);
1.56 kristaps 646: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 647: BUFSIZ - h->buflen - 1, fmt, ap);
648: va_end(ap);
649: h->buflen = strlen(h->buf);
650: }
651:
652:
653: void
654: bufncat(struct html *h, const char *p, size_t sz)
655: {
656:
657: if (h->buflen + sz > BUFSIZ - 1)
658: sz = BUFSIZ - 1 - h->buflen;
659:
660: (void)strncat(h->buf, p, sz);
661: h->buflen += sz;
662: }
663:
664:
665: void
666: buffmt_includes(struct html *h, const char *name)
667: {
668: const char *p, *pp;
669:
670: pp = h->base_includes;
1.61 kristaps 671:
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('I'):
676: bufcat(h, name);
677: break;
678: default:
679: bufncat(h, p, 2);
680: break;
681: }
682: pp = p + 2;
683: }
684: if (pp)
685: bufcat(h, pp);
686: }
687:
688:
689: void
690: buffmt_man(struct html *h,
691: const char *name, const char *sec)
692: {
693: const char *p, *pp;
694:
695: pp = h->base_man;
1.61 kristaps 696:
697: /* LINTED */
698: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 699: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 700: switch (*(p + 1)) {
701: case('S'):
1.58 kristaps 702: bufcat(h, sec ? sec : "1");
1.55 kristaps 703: break;
704: case('N'):
1.58 kristaps 705: buffmt(h, name);
1.55 kristaps 706: break;
707: default:
708: bufncat(h, p, 2);
709: break;
710: }
711: pp = p + 2;
712: }
713: if (pp)
714: bufcat(h, pp);
715: }
1.58 kristaps 716:
717:
718: void
719: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
720: {
1.62 kristaps 721: double v;
1.63 kristaps 722: const char *u;
1.58 kristaps 723:
724: v = su->scale;
725:
726: switch (su->unit) {
727: case (SCALE_CM):
728: u = "cm";
729: break;
730: case (SCALE_IN):
731: u = "in";
732: break;
733: case (SCALE_PC):
734: u = "pc";
735: break;
736: case (SCALE_PT):
737: u = "pt";
738: break;
1.59 kristaps 739: case (SCALE_EM):
740: u = "em";
741: break;
1.58 kristaps 742: case (SCALE_MM):
743: if (0 == (v /= 100))
744: v = 1;
745: u = "em";
746: break;
1.59 kristaps 747: case (SCALE_EN):
748: u = "ex";
749: break;
750: case (SCALE_BU):
751: u = "ex";
752: break;
1.58 kristaps 753: case (SCALE_VS):
754: u = "em";
755: break;
756: default:
757: u = "ex";
758: break;
759: }
760:
1.103 kristaps 761: /*
762: * XXX: the CSS spec isn't clear as to which types accept
763: * integer or real numbers, so we just make them all decimals.
764: */
765: buffmt(h, "%s: %.2f%s;", p, v, u);
1.58 kristaps 766: }
1.65 kristaps 767:
1.68 kristaps 768:
769: void
1.70 kristaps 770: html_idcat(char *dst, const char *src, int sz)
1.68 kristaps 771: {
1.70 kristaps 772: int ssz;
1.68 kristaps 773:
1.124 ! schwarze 774: assert(sz > 2);
1.68 kristaps 775:
776: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
777:
1.124 ! schwarze 778: /* We can't start with a number (bah). */
! 779:
! 780: if ('#' == *dst) {
! 781: dst++;
! 782: sz--;
! 783: }
! 784: if ('\0' == *dst) {
! 785: *dst++ = 'x';
! 786: *dst = '\0';
! 787: sz--;
! 788: }
! 789:
1.70 kristaps 790: for ( ; *dst != '\0' && sz; dst++, sz--)
1.68 kristaps 791: /* Jump to end. */ ;
1.70 kristaps 792:
793: for ( ; *src != '\0' && sz > 1; src++) {
1.73 kristaps 794: ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
1.70 kristaps 795: sz -= ssz;
796: dst += ssz;
797: }
1.68 kristaps 798: }
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