Annotation of mandoc/html.c, Revision 1.127
1.127 ! kristaps 1: /* $Id: html.c,v 1.126 2011/01/30 16:05:37 schwarze 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"
1.58 kristaps 34: #include "out.h"
1.32 kristaps 35: #include "chars.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:
1.126 schwarze 97: static void print_num(struct html *, const char *, size_t);
1.108 kristaps 98: static void print_spec(struct html *, enum roffdeco,
99: const char *, size_t);
1.83 kristaps 100: static void print_res(struct html *, const char *, size_t);
1.82 kristaps 101: static void print_ctag(struct html *, enum htmltag);
1.93 kristaps 102: static void print_doctype(struct html *);
103: static void print_xmltype(struct html *);
1.88 kristaps 104: static int print_encode(struct html *, const char *, int);
105: static void print_metaf(struct html *, enum roffdeco);
1.94 kristaps 106: static void print_attr(struct html *,
107: const char *, const char *);
1.93 kristaps 108: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 109:
110:
1.93 kristaps 111: static void *
112: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 113: {
1.30 kristaps 114: struct html *h;
1.63 kristaps 115: const char *toks[4];
116: char *v;
1.43 kristaps 117:
118: toks[0] = "style";
1.53 kristaps 119: toks[1] = "man";
1.54 kristaps 120: toks[2] = "includes";
121: toks[3] = NULL;
1.30 kristaps 122:
1.72 kristaps 123: h = calloc(1, sizeof(struct html));
124: if (NULL == h) {
1.75 kristaps 125: perror(NULL);
1.112 kristaps 126: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 127: }
1.10 kristaps 128:
1.93 kristaps 129: h->type = type;
1.66 kristaps 130: h->tags.head = NULL;
1.72 kristaps 131: h->symtab = chars_init(CHARS_HTML);
1.41 kristaps 132:
1.47 kristaps 133: while (outopts && *outopts)
1.63 kristaps 134: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.43 kristaps 135: case (0):
136: h->style = v;
137: break;
138: case (1):
1.53 kristaps 139: h->base_man = v;
1.43 kristaps 140: break;
1.54 kristaps 141: case (2):
142: h->base_includes = v;
143: break;
1.43 kristaps 144: default:
145: break;
146: }
147:
1.30 kristaps 148: return(h);
1.29 kristaps 149: }
1.10 kristaps 150:
1.93 kristaps 151: void *
152: html_alloc(char *outopts)
153: {
154:
155: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
156: }
157:
158:
159: void *
160: xhtml_alloc(char *outopts)
161: {
162:
163: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
164: }
165:
1.33 kristaps 166:
1.29 kristaps 167: void
168: html_free(void *p)
169: {
1.30 kristaps 170: struct tag *tag;
171: struct html *h;
172:
173: h = (struct html *)p;
1.37 kristaps 174:
1.66 kristaps 175: while ((tag = h->tags.head) != NULL) {
176: h->tags.head = tag->next;
1.30 kristaps 177: free(tag);
178: }
1.36 kristaps 179:
180: if (h->symtab)
181: chars_free(h->symtab);
1.53 kristaps 182:
1.30 kristaps 183: free(h);
1.10 kristaps 184: }
1.2 kristaps 185:
1.33 kristaps 186:
1.51 kristaps 187: void
1.29 kristaps 188: print_gen_head(struct html *h)
189: {
1.41 kristaps 190: struct htmlpair tag[4];
191:
192: tag[0].key = ATTR_HTTPEQUIV;
193: tag[0].val = "Content-Type";
194: tag[1].key = ATTR_CONTENT;
195: tag[1].val = "text/html; charset=utf-8";
196: print_otag(h, TAG_META, 2, tag);
197:
198: tag[0].key = ATTR_NAME;
199: tag[0].val = "resource-type";
200: tag[1].key = ATTR_CONTENT;
201: tag[1].val = "document";
202: print_otag(h, TAG_META, 2, tag);
203:
204: if (h->style) {
205: tag[0].key = ATTR_REL;
206: tag[0].val = "stylesheet";
207: tag[1].key = ATTR_HREF;
208: tag[1].val = h->style;
209: tag[2].key = ATTR_TYPE;
210: tag[2].val = "text/css";
211: tag[3].key = ATTR_MEDIA;
212: tag[3].val = "all";
213: print_otag(h, TAG_LINK, 4, tag);
214: }
1.4 kristaps 215: }
216:
1.127 ! kristaps 217: /* ARGSUSED */
1.29 kristaps 218: static void
1.126 schwarze 219: print_num(struct html *h, const char *p, size_t len)
220: {
221: const char *rhs;
222:
223: rhs = chars_num2char(p, len);
224: if (rhs)
225: putchar((int)*rhs);
226: }
227:
228: static void
1.108 kristaps 229: print_spec(struct html *h, enum roffdeco d, const char *p, size_t len)
1.32 kristaps 230: {
1.107 kristaps 231: int cp;
1.32 kristaps 232: const char *rhs;
233: size_t sz;
234:
1.107 kristaps 235: if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
236: printf("&#%d;", cp);
237: return;
1.108 kristaps 238: } else if (-1 == cp && DECO_SSPECIAL == d) {
239: fwrite(p, 1, len, stdout);
240: return;
1.107 kristaps 241: } else if (-1 == cp)
242: return;
1.32 kristaps 243:
1.107 kristaps 244: if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
245: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 246: }
247:
1.33 kristaps 248:
1.32 kristaps 249: static void
1.83 kristaps 250: print_res(struct html *h, const char *p, size_t len)
1.32 kristaps 251: {
1.107 kristaps 252: int cp;
1.32 kristaps 253: const char *rhs;
254: size_t sz;
255:
1.107 kristaps 256: if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
257: printf("&#%d;", cp);
258: return;
259: } else if (-1 == cp)
260: return;
1.32 kristaps 261:
1.107 kristaps 262: if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
263: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 264: }
265:
1.33 kristaps 266:
1.88 kristaps 267: static void
268: print_metaf(struct html *h, enum roffdeco deco)
269: {
1.90 kristaps 270: enum htmlfont font;
1.88 kristaps 271:
272: switch (deco) {
1.90 kristaps 273: case (DECO_PREVIOUS):
274: font = h->metal;
1.88 kristaps 275: break;
276: case (DECO_ITALIC):
1.90 kristaps 277: font = HTMLFONT_ITALIC;
278: break;
279: case (DECO_BOLD):
280: font = HTMLFONT_BOLD;
1.88 kristaps 281: break;
282: case (DECO_ROMAN):
1.90 kristaps 283: font = HTMLFONT_NONE;
1.88 kristaps 284: break;
285: default:
286: abort();
287: /* NOTREACHED */
288: }
289:
1.122 kristaps 290: if (h->metaf) {
291: print_tagq(h, h->metaf);
292: h->metaf = NULL;
293: }
294:
295: h->metal = h->metac;
296: h->metac = font;
297:
298: if (HTMLFONT_NONE != font)
299: h->metaf = HTMLFONT_BOLD == font ?
300: print_otag(h, TAG_B, 0, NULL) :
301: print_otag(h, TAG_I, 0, NULL);
1.88 kristaps 302: }
303:
304:
1.85 kristaps 305: static int
1.88 kristaps 306: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 307: {
1.77 kristaps 308: size_t sz;
1.85 kristaps 309: int len, nospace;
1.82 kristaps 310: const char *seq;
311: enum roffdeco deco;
1.100 kristaps 312: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 313:
1.85 kristaps 314: nospace = 0;
315:
1.32 kristaps 316: for (; *p; p++) {
1.100 kristaps 317: sz = strcspn(p, rejs);
1.77 kristaps 318:
319: fwrite(p, 1, sz, stdout);
1.80 kristaps 320: p += /* LINTED */
321: sz;
1.77 kristaps 322:
1.82 kristaps 323: if ('<' == *p) {
324: printf("<");
325: continue;
326: } else if ('>' == *p) {
327: printf(">");
328: continue;
329: } else if ('&' == *p) {
330: printf("&");
1.34 kristaps 331: continue;
1.100 kristaps 332: } else if (ASCII_HYPH == *p) {
333: /*
334: * Note: "soft hyphens" aren't graphically
335: * displayed when not breaking the text; we want
336: * them to be displayed.
337: */
338: /*printf("­");*/
339: putchar('-');
340: continue;
1.77 kristaps 341: } else if ('\0' == *p)
342: break;
343:
1.82 kristaps 344: seq = ++p;
345: len = a2roffdeco(&deco, &seq, &sz);
346:
347: switch (deco) {
1.126 schwarze 348: case (DECO_NUMBERED):
349: print_num(h, seq, sz);
350: break;
1.82 kristaps 351: case (DECO_RESERVED):
352: print_res(h, seq, sz);
353: break;
1.108 kristaps 354: case (DECO_SSPECIAL):
355: /* FALLTHROUGH */
1.82 kristaps 356: case (DECO_SPECIAL):
1.108 kristaps 357: print_spec(h, deco, seq, sz);
1.82 kristaps 358: break;
1.90 kristaps 359: case (DECO_PREVIOUS):
360: /* FALLTHROUGH */
1.88 kristaps 361: case (DECO_BOLD):
362: /* FALLTHROUGH */
363: case (DECO_ITALIC):
364: /* FALLTHROUGH */
365: case (DECO_ROMAN):
366: if (norecurse)
367: break;
368: print_metaf(h, deco);
369: break;
1.82 kristaps 370: default:
371: break;
372: }
373:
374: p += len - 1;
1.84 kristaps 375:
376: if (DECO_NOSPACE == deco && '\0' == *(p + 1))
1.85 kristaps 377: nospace = 1;
1.32 kristaps 378: }
1.85 kristaps 379:
380: return(nospace);
1.14 kristaps 381: }
382:
383:
1.94 kristaps 384: static void
385: print_attr(struct html *h, const char *key, const char *val)
386: {
387: printf(" %s=\"", key);
388: (void)print_encode(h, val, 1);
389: putchar('\"');
390: }
391:
392:
1.51 kristaps 393: struct tag *
1.29 kristaps 394: print_otag(struct html *h, enum htmltag tag,
395: int sz, const struct htmlpair *p)
1.14 kristaps 396: {
1.29 kristaps 397: int i;
1.30 kristaps 398: struct tag *t;
399:
1.94 kristaps 400: /* Push this tags onto the stack of open scopes. */
401:
1.30 kristaps 402: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.72 kristaps 403: t = malloc(sizeof(struct tag));
404: if (NULL == t) {
1.75 kristaps 405: perror(NULL);
1.112 kristaps 406: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 407: }
1.30 kristaps 408: t->tag = tag;
1.66 kristaps 409: t->next = h->tags.head;
410: h->tags.head = t;
1.30 kristaps 411: } else
412: t = NULL;
1.29 kristaps 413:
414: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 415: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
416: /* Manage keeps! */
417: if ( ! (HTML_KEEP & h->flags)) {
418: if (HTML_PREKEEP & h->flags)
419: h->flags |= HTML_KEEP;
420: putchar(' ');
421: } else
422: printf(" ");
423: }
1.29 kristaps 424:
1.109 kristaps 425: if ( ! (h->flags & HTML_NONOSPACE))
426: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 427: else
428: h->flags |= HTML_NOSPACE;
1.109 kristaps 429:
1.94 kristaps 430: /* Print out the tag name and attributes. */
431:
1.29 kristaps 432: printf("<%s", htmltags[tag].name);
1.94 kristaps 433: for (i = 0; i < sz; i++)
434: print_attr(h, htmlattrs[p[i].key], p[i].val);
435:
436: /* Add non-overridable attributes. */
437:
438: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
439: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
440: print_attr(h, "xml:lang", "en");
441: print_attr(h, "lang", "en");
1.29 kristaps 442: }
1.93 kristaps 443:
1.94 kristaps 444: /* Accomodate for XML "well-formed" singleton escaping. */
445:
1.93 kristaps 446: if (HTML_AUTOCLOSE & htmltags[tag].flags)
447: switch (h->type) {
448: case (HTML_XHTML_1_0_STRICT):
449: putchar('/');
450: break;
451: default:
452: break;
453: }
454:
1.78 kristaps 455: putchar('>');
1.14 kristaps 456:
1.29 kristaps 457: h->flags |= HTML_NOSPACE;
1.117 kristaps 458:
459: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
460: putchar('\n');
461:
1.30 kristaps 462: return(t);
1.14 kristaps 463: }
464:
465:
1.29 kristaps 466: static void
467: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 468: {
469:
1.29 kristaps 470: printf("</%s>", htmltags[tag].name);
1.71 kristaps 471: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 472: h->flags |= HTML_NOSPACE;
1.78 kristaps 473: putchar('\n');
1.87 kristaps 474: }
1.14 kristaps 475: }
476:
477:
1.51 kristaps 478: void
1.93 kristaps 479: print_gen_decls(struct html *h)
1.1 kristaps 480: {
1.93 kristaps 481:
482: print_xmltype(h);
483: print_doctype(h);
484: }
485:
486:
487: static void
488: print_xmltype(struct html *h)
489: {
490:
1.100 kristaps 491: if (HTML_XHTML_1_0_STRICT == h->type)
1.121 kristaps 492: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.93 kristaps 493: }
494:
495:
496: static void
497: print_doctype(struct html *h)
498: {
499: const char *doctype;
500: const char *dtd;
1.96 kristaps 501: const char *name;
1.93 kristaps 502:
503: switch (h->type) {
504: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 505: name = "HTML";
1.93 kristaps 506: doctype = "-//W3C//DTD HTML 4.01//EN";
507: dtd = "http://www.w3.org/TR/html4/strict.dtd";
508: break;
509: default:
1.96 kristaps 510: name = "html";
1.93 kristaps 511: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
512: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
513: break;
514: }
515:
1.96 kristaps 516: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
517: name, doctype, dtd);
1.1 kristaps 518: }
519:
520:
1.51 kristaps 521: void
1.104 kristaps 522: print_text(struct html *h, const char *word)
1.1 kristaps 523: {
524:
1.104 kristaps 525: if (word[0] && '\0' == word[1])
526: switch (word[0]) {
1.29 kristaps 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(')'):
540: /* FALLTHROUGH */
541: case(']'):
1.52 kristaps 542: if ( ! (HTML_IGNDELIM & h->flags))
543: h->flags |= HTML_NOSPACE;
1.30 kristaps 544: break;
1.29 kristaps 545: default:
546: break;
547: }
1.1 kristaps 548:
1.105 kristaps 549: if ( ! (HTML_NOSPACE & h->flags)) {
550: /* Manage keeps! */
551: if ( ! (HTML_KEEP & h->flags)) {
552: if (HTML_PREKEEP & h->flags)
553: h->flags |= HTML_KEEP;
554: putchar(' ');
555: } else
556: printf(" ");
557: }
1.30 kristaps 558:
1.122 kristaps 559: assert(NULL == h->metaf);
560: if (HTMLFONT_NONE != h->metac)
561: h->metaf = HTMLFONT_BOLD == h->metac ?
562: print_otag(h, TAG_B, 0, NULL) :
563: print_otag(h, TAG_I, 0, NULL);
564:
1.104 kristaps 565: assert(word);
566: if ( ! print_encode(h, word, 0))
1.109 kristaps 567: if ( ! (h->flags & HTML_NONOSPACE))
568: h->flags &= ~HTML_NOSPACE;
1.122 kristaps 569:
570: if (h->metaf) {
571: print_tagq(h, h->metaf);
572: h->metaf = NULL;
573: }
1.113 schwarze 574:
575: h->flags &= ~HTML_IGNDELIM;
1.8 kristaps 576:
1.98 kristaps 577: /*
578: * Note that we don't process the pipe: the parser sees it as
579: * punctuation, but we don't in terms of typography.
580: */
1.104 kristaps 581: if (word[0] && '\0' == word[1])
582: switch (word[0]) {
1.29 kristaps 583: case('('):
584: /* FALLTHROUGH */
585: case('['):
586: h->flags |= HTML_NOSPACE;
1.30 kristaps 587: break;
1.29 kristaps 588: default:
589: break;
590: }
1.1 kristaps 591: }
1.30 kristaps 592:
593:
1.51 kristaps 594: void
1.30 kristaps 595: print_tagq(struct html *h, const struct tag *until)
596: {
597: struct tag *tag;
598:
1.66 kristaps 599: while ((tag = h->tags.head) != NULL) {
1.125 kristaps 600: /*
601: * Remember to close out and nullify the current
602: * meta-font and table, if applicable.
603: */
1.89 kristaps 604: if (tag == h->metaf)
605: h->metaf = NULL;
1.125 kristaps 606: if (tag == h->tblt)
607: h->tblt = 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: if (until && tag == until)
612: return;
613: }
614: }
615:
616:
1.51 kristaps 617: void
1.30 kristaps 618: print_stagq(struct html *h, const struct tag *suntil)
619: {
620: struct tag *tag;
621:
1.66 kristaps 622: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 623: if (suntil && tag == suntil)
624: return;
1.125 kristaps 625: /*
626: * Remember to close out and nullify the current
627: * meta-font and table, if applicable.
628: */
1.89 kristaps 629: if (tag == h->metaf)
630: h->metaf = NULL;
1.125 kristaps 631: if (tag == h->tblt)
632: h->tblt = NULL;
1.30 kristaps 633: print_ctag(h, tag->tag);
1.66 kristaps 634: h->tags.head = tag->next;
1.30 kristaps 635: free(tag);
636: }
637: }
1.55 kristaps 638:
639:
640: void
641: bufinit(struct html *h)
642: {
643:
644: h->buf[0] = '\0';
645: h->buflen = 0;
646: }
647:
648:
649: void
1.58 kristaps 650: bufcat_style(struct html *h, const char *key, const char *val)
651: {
652:
653: bufcat(h, key);
654: bufncat(h, ":", 1);
655: bufcat(h, val);
656: bufncat(h, ";", 1);
657: }
658:
659:
660: void
1.55 kristaps 661: bufcat(struct html *h, const char *p)
662: {
663:
664: bufncat(h, p, strlen(p));
665: }
666:
667:
668: void
669: buffmt(struct html *h, const char *fmt, ...)
670: {
671: va_list ap;
672:
673: va_start(ap, fmt);
1.56 kristaps 674: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 675: BUFSIZ - h->buflen - 1, fmt, ap);
676: va_end(ap);
677: h->buflen = strlen(h->buf);
678: }
679:
680:
681: void
682: bufncat(struct html *h, const char *p, size_t sz)
683: {
684:
685: if (h->buflen + sz > BUFSIZ - 1)
686: sz = BUFSIZ - 1 - h->buflen;
687:
688: (void)strncat(h->buf, p, sz);
689: h->buflen += sz;
690: }
691:
692:
693: void
694: buffmt_includes(struct html *h, const char *name)
695: {
696: const char *p, *pp;
697:
698: pp = h->base_includes;
1.61 kristaps 699:
700: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 701: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 702: switch (*(p + 1)) {
703: case('I'):
704: bufcat(h, name);
705: break;
706: default:
707: bufncat(h, p, 2);
708: break;
709: }
710: pp = p + 2;
711: }
712: if (pp)
713: bufcat(h, pp);
714: }
715:
716:
717: void
718: buffmt_man(struct html *h,
719: const char *name, const char *sec)
720: {
721: const char *p, *pp;
722:
723: pp = h->base_man;
1.61 kristaps 724:
725: /* LINTED */
726: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 727: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 728: switch (*(p + 1)) {
729: case('S'):
1.58 kristaps 730: bufcat(h, sec ? sec : "1");
1.55 kristaps 731: break;
732: case('N'):
1.58 kristaps 733: buffmt(h, name);
1.55 kristaps 734: break;
735: default:
736: bufncat(h, p, 2);
737: break;
738: }
739: pp = p + 2;
740: }
741: if (pp)
742: bufcat(h, pp);
743: }
1.58 kristaps 744:
745:
746: void
747: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
748: {
1.62 kristaps 749: double v;
1.63 kristaps 750: const char *u;
1.58 kristaps 751:
752: v = su->scale;
753:
754: switch (su->unit) {
755: case (SCALE_CM):
756: u = "cm";
757: break;
758: case (SCALE_IN):
759: u = "in";
760: break;
761: case (SCALE_PC):
762: u = "pc";
763: break;
764: case (SCALE_PT):
765: u = "pt";
766: break;
1.59 kristaps 767: case (SCALE_EM):
768: u = "em";
769: break;
1.58 kristaps 770: case (SCALE_MM):
771: if (0 == (v /= 100))
772: v = 1;
773: u = "em";
774: break;
1.59 kristaps 775: case (SCALE_EN):
776: u = "ex";
777: break;
778: case (SCALE_BU):
779: u = "ex";
780: break;
1.58 kristaps 781: case (SCALE_VS):
782: u = "em";
783: break;
784: default:
785: u = "ex";
786: break;
787: }
788:
1.103 kristaps 789: /*
790: * XXX: the CSS spec isn't clear as to which types accept
791: * integer or real numbers, so we just make them all decimals.
792: */
793: buffmt(h, "%s: %.2f%s;", p, v, u);
1.58 kristaps 794: }
1.65 kristaps 795:
1.68 kristaps 796:
797: void
1.70 kristaps 798: html_idcat(char *dst, const char *src, int sz)
1.68 kristaps 799: {
1.70 kristaps 800: int ssz;
1.68 kristaps 801:
1.124 schwarze 802: assert(sz > 2);
1.68 kristaps 803:
804: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
805:
1.124 schwarze 806: /* We can't start with a number (bah). */
807:
808: if ('#' == *dst) {
809: dst++;
810: sz--;
811: }
812: if ('\0' == *dst) {
813: *dst++ = 'x';
814: *dst = '\0';
815: sz--;
816: }
817:
1.70 kristaps 818: for ( ; *dst != '\0' && sz; dst++, sz--)
1.68 kristaps 819: /* Jump to end. */ ;
1.70 kristaps 820:
821: for ( ; *src != '\0' && sz > 1; src++) {
1.73 kristaps 822: ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
1.70 kristaps 823: sz -= ssz;
824: dst += ssz;
825: }
1.68 kristaps 826: }
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