Annotation of mandoc/html.c, Revision 1.126
1.126 ! schwarze 1: /* $Id: html.c,v 1.125 2011/01/13 14:30:13 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"
1.58 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:
1.33 kristaps 217:
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:
! 229: static void
1.108 kristaps 230: print_spec(struct html *h, enum roffdeco d, const char *p, size_t len)
1.32 kristaps 231: {
1.107 kristaps 232: int cp;
1.32 kristaps 233: const char *rhs;
234: size_t sz;
235:
1.107 kristaps 236: if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
237: printf("&#%d;", cp);
238: return;
1.108 kristaps 239: } else if (-1 == cp && DECO_SSPECIAL == d) {
240: fwrite(p, 1, len, stdout);
241: return;
1.107 kristaps 242: } else if (-1 == cp)
243: return;
1.32 kristaps 244:
1.107 kristaps 245: if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
246: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 247: }
248:
1.33 kristaps 249:
1.32 kristaps 250: static void
1.83 kristaps 251: print_res(struct html *h, const char *p, size_t len)
1.32 kristaps 252: {
1.107 kristaps 253: int cp;
1.32 kristaps 254: const char *rhs;
255: size_t sz;
256:
1.107 kristaps 257: if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
258: printf("&#%d;", cp);
259: return;
260: } else if (-1 == cp)
261: return;
1.32 kristaps 262:
1.107 kristaps 263: if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
264: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 265: }
266:
1.33 kristaps 267:
1.88 kristaps 268: static void
269: print_metaf(struct html *h, enum roffdeco deco)
270: {
1.90 kristaps 271: enum htmlfont font;
1.88 kristaps 272:
273: switch (deco) {
1.90 kristaps 274: case (DECO_PREVIOUS):
275: font = h->metal;
1.88 kristaps 276: break;
277: case (DECO_ITALIC):
1.90 kristaps 278: font = HTMLFONT_ITALIC;
279: break;
280: case (DECO_BOLD):
281: font = HTMLFONT_BOLD;
1.88 kristaps 282: break;
283: case (DECO_ROMAN):
1.90 kristaps 284: font = HTMLFONT_NONE;
1.88 kristaps 285: break;
286: default:
287: abort();
288: /* NOTREACHED */
289: }
290:
1.122 kristaps 291: if (h->metaf) {
292: print_tagq(h, h->metaf);
293: h->metaf = NULL;
294: }
295:
296: h->metal = h->metac;
297: h->metac = font;
298:
299: if (HTMLFONT_NONE != font)
300: h->metaf = HTMLFONT_BOLD == font ?
301: print_otag(h, TAG_B, 0, NULL) :
302: print_otag(h, TAG_I, 0, NULL);
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) {
1.126 ! schwarze 349: case (DECO_NUMBERED):
! 350: print_num(h, seq, sz);
! 351: break;
1.82 kristaps 352: case (DECO_RESERVED):
353: print_res(h, seq, sz);
354: break;
1.108 kristaps 355: case (DECO_SSPECIAL):
356: /* FALLTHROUGH */
1.82 kristaps 357: case (DECO_SPECIAL):
1.108 kristaps 358: print_spec(h, deco, seq, sz);
1.82 kristaps 359: break;
1.90 kristaps 360: case (DECO_PREVIOUS):
361: /* FALLTHROUGH */
1.88 kristaps 362: case (DECO_BOLD):
363: /* FALLTHROUGH */
364: case (DECO_ITALIC):
365: /* FALLTHROUGH */
366: case (DECO_ROMAN):
367: if (norecurse)
368: break;
369: print_metaf(h, deco);
370: break;
1.82 kristaps 371: default:
372: break;
373: }
374:
375: p += len - 1;
1.84 kristaps 376:
377: if (DECO_NOSPACE == deco && '\0' == *(p + 1))
1.85 kristaps 378: nospace = 1;
1.32 kristaps 379: }
1.85 kristaps 380:
381: return(nospace);
1.14 kristaps 382: }
383:
384:
1.94 kristaps 385: static void
386: print_attr(struct html *h, const char *key, const char *val)
387: {
388: printf(" %s=\"", key);
389: (void)print_encode(h, val, 1);
390: putchar('\"');
391: }
392:
393:
1.51 kristaps 394: struct tag *
1.29 kristaps 395: print_otag(struct html *h, enum htmltag tag,
396: int sz, const struct htmlpair *p)
1.14 kristaps 397: {
1.29 kristaps 398: int i;
1.30 kristaps 399: struct tag *t;
400:
1.94 kristaps 401: /* Push this tags onto the stack of open scopes. */
402:
1.30 kristaps 403: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.72 kristaps 404: t = malloc(sizeof(struct tag));
405: if (NULL == t) {
1.75 kristaps 406: perror(NULL);
1.112 kristaps 407: exit((int)MANDOCLEVEL_SYSERR);
1.72 kristaps 408: }
1.30 kristaps 409: t->tag = tag;
1.66 kristaps 410: t->next = h->tags.head;
411: h->tags.head = t;
1.30 kristaps 412: } else
413: t = NULL;
1.29 kristaps 414:
415: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 416: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
417: /* Manage keeps! */
418: if ( ! (HTML_KEEP & h->flags)) {
419: if (HTML_PREKEEP & h->flags)
420: h->flags |= HTML_KEEP;
421: putchar(' ');
422: } else
423: printf(" ");
424: }
1.29 kristaps 425:
1.109 kristaps 426: if ( ! (h->flags & HTML_NONOSPACE))
427: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 428: else
429: h->flags |= HTML_NOSPACE;
1.109 kristaps 430:
1.94 kristaps 431: /* Print out the tag name and attributes. */
432:
1.29 kristaps 433: printf("<%s", htmltags[tag].name);
1.94 kristaps 434: for (i = 0; i < sz; i++)
435: print_attr(h, htmlattrs[p[i].key], p[i].val);
436:
437: /* Add non-overridable attributes. */
438:
439: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
440: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
441: print_attr(h, "xml:lang", "en");
442: print_attr(h, "lang", "en");
1.29 kristaps 443: }
1.93 kristaps 444:
1.94 kristaps 445: /* Accomodate for XML "well-formed" singleton escaping. */
446:
1.93 kristaps 447: if (HTML_AUTOCLOSE & htmltags[tag].flags)
448: switch (h->type) {
449: case (HTML_XHTML_1_0_STRICT):
450: putchar('/');
451: break;
452: default:
453: break;
454: }
455:
1.78 kristaps 456: putchar('>');
1.14 kristaps 457:
1.29 kristaps 458: h->flags |= HTML_NOSPACE;
1.117 kristaps 459:
460: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
461: putchar('\n');
462:
1.30 kristaps 463: return(t);
1.14 kristaps 464: }
465:
466:
1.29 kristaps 467: static void
468: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 469: {
470:
1.29 kristaps 471: printf("</%s>", htmltags[tag].name);
1.71 kristaps 472: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 473: h->flags |= HTML_NOSPACE;
1.78 kristaps 474: putchar('\n');
1.87 kristaps 475: }
1.14 kristaps 476: }
477:
478:
1.51 kristaps 479: void
1.93 kristaps 480: print_gen_decls(struct html *h)
1.1 kristaps 481: {
1.93 kristaps 482:
483: print_xmltype(h);
484: print_doctype(h);
485: }
486:
487:
488: static void
489: print_xmltype(struct html *h)
490: {
491:
1.100 kristaps 492: if (HTML_XHTML_1_0_STRICT == h->type)
1.121 kristaps 493: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.93 kristaps 494: }
495:
496:
497: static void
498: print_doctype(struct html *h)
499: {
500: const char *doctype;
501: const char *dtd;
1.96 kristaps 502: const char *name;
1.93 kristaps 503:
504: switch (h->type) {
505: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 506: name = "HTML";
1.93 kristaps 507: doctype = "-//W3C//DTD HTML 4.01//EN";
508: dtd = "http://www.w3.org/TR/html4/strict.dtd";
509: break;
510: default:
1.96 kristaps 511: name = "html";
1.93 kristaps 512: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
513: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
514: break;
515: }
516:
1.96 kristaps 517: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
518: name, doctype, dtd);
1.1 kristaps 519: }
520:
521:
1.51 kristaps 522: void
1.104 kristaps 523: print_text(struct html *h, const char *word)
1.1 kristaps 524: {
525:
1.104 kristaps 526: if (word[0] && '\0' == word[1])
527: switch (word[0]) {
1.29 kristaps 528: case('.'):
529: /* FALLTHROUGH */
530: case(','):
531: /* FALLTHROUGH */
532: case(';'):
533: /* FALLTHROUGH */
534: case(':'):
535: /* FALLTHROUGH */
536: case('?'):
537: /* FALLTHROUGH */
538: case('!'):
539: /* FALLTHROUGH */
540: case(')'):
541: /* FALLTHROUGH */
542: case(']'):
1.52 kristaps 543: if ( ! (HTML_IGNDELIM & h->flags))
544: h->flags |= HTML_NOSPACE;
1.30 kristaps 545: break;
1.29 kristaps 546: default:
547: break;
548: }
1.1 kristaps 549:
1.105 kristaps 550: if ( ! (HTML_NOSPACE & h->flags)) {
551: /* Manage keeps! */
552: if ( ! (HTML_KEEP & h->flags)) {
553: if (HTML_PREKEEP & h->flags)
554: h->flags |= HTML_KEEP;
555: putchar(' ');
556: } else
557: printf(" ");
558: }
1.30 kristaps 559:
1.122 kristaps 560: assert(NULL == h->metaf);
561: if (HTMLFONT_NONE != h->metac)
562: h->metaf = HTMLFONT_BOLD == h->metac ?
563: print_otag(h, TAG_B, 0, NULL) :
564: print_otag(h, TAG_I, 0, NULL);
565:
1.104 kristaps 566: assert(word);
567: if ( ! print_encode(h, word, 0))
1.109 kristaps 568: if ( ! (h->flags & HTML_NONOSPACE))
569: h->flags &= ~HTML_NOSPACE;
1.122 kristaps 570:
571: if (h->metaf) {
572: print_tagq(h, h->metaf);
573: h->metaf = NULL;
574: }
1.113 schwarze 575:
576: h->flags &= ~HTML_IGNDELIM;
1.8 kristaps 577:
1.98 kristaps 578: /*
579: * Note that we don't process the pipe: the parser sees it as
580: * punctuation, but we don't in terms of typography.
581: */
1.104 kristaps 582: if (word[0] && '\0' == word[1])
583: switch (word[0]) {
1.29 kristaps 584: case('('):
585: /* FALLTHROUGH */
586: case('['):
587: h->flags |= HTML_NOSPACE;
1.30 kristaps 588: break;
1.29 kristaps 589: default:
590: break;
591: }
1.1 kristaps 592: }
1.30 kristaps 593:
594:
1.51 kristaps 595: void
1.30 kristaps 596: print_tagq(struct html *h, const struct tag *until)
597: {
598: struct tag *tag;
599:
1.66 kristaps 600: while ((tag = h->tags.head) != NULL) {
1.125 kristaps 601: /*
602: * Remember to close out and nullify the current
603: * meta-font and table, if applicable.
604: */
1.89 kristaps 605: if (tag == h->metaf)
606: h->metaf = NULL;
1.125 kristaps 607: if (tag == h->tblt)
608: h->tblt = NULL;
1.30 kristaps 609: print_ctag(h, tag->tag);
1.66 kristaps 610: h->tags.head = tag->next;
1.30 kristaps 611: free(tag);
612: if (until && tag == until)
613: return;
614: }
615: }
616:
617:
1.51 kristaps 618: void
1.30 kristaps 619: print_stagq(struct html *h, const struct tag *suntil)
620: {
621: struct tag *tag;
622:
1.66 kristaps 623: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 624: if (suntil && tag == suntil)
625: return;
1.125 kristaps 626: /*
627: * Remember to close out and nullify the current
628: * meta-font and table, if applicable.
629: */
1.89 kristaps 630: if (tag == h->metaf)
631: h->metaf = NULL;
1.125 kristaps 632: if (tag == h->tblt)
633: h->tblt = NULL;
1.30 kristaps 634: print_ctag(h, tag->tag);
1.66 kristaps 635: h->tags.head = tag->next;
1.30 kristaps 636: free(tag);
637: }
638: }
1.55 kristaps 639:
640:
641: void
642: bufinit(struct html *h)
643: {
644:
645: h->buf[0] = '\0';
646: h->buflen = 0;
647: }
648:
649:
650: void
1.58 kristaps 651: bufcat_style(struct html *h, const char *key, const char *val)
652: {
653:
654: bufcat(h, key);
655: bufncat(h, ":", 1);
656: bufcat(h, val);
657: bufncat(h, ";", 1);
658: }
659:
660:
661: void
1.55 kristaps 662: bufcat(struct html *h, const char *p)
663: {
664:
665: bufncat(h, p, strlen(p));
666: }
667:
668:
669: void
670: buffmt(struct html *h, const char *fmt, ...)
671: {
672: va_list ap;
673:
674: va_start(ap, fmt);
1.56 kristaps 675: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 676: BUFSIZ - h->buflen - 1, fmt, ap);
677: va_end(ap);
678: h->buflen = strlen(h->buf);
679: }
680:
681:
682: void
683: bufncat(struct html *h, const char *p, size_t sz)
684: {
685:
686: if (h->buflen + sz > BUFSIZ - 1)
687: sz = BUFSIZ - 1 - h->buflen;
688:
689: (void)strncat(h->buf, p, sz);
690: h->buflen += sz;
691: }
692:
693:
694: void
695: buffmt_includes(struct html *h, const char *name)
696: {
697: const char *p, *pp;
698:
699: pp = h->base_includes;
1.61 kristaps 700:
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('I'):
705: bufcat(h, name);
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: }
716:
717:
718: void
719: buffmt_man(struct html *h,
720: const char *name, const char *sec)
721: {
722: const char *p, *pp;
723:
724: pp = h->base_man;
1.61 kristaps 725:
726: /* LINTED */
727: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 728: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 729: switch (*(p + 1)) {
730: case('S'):
1.58 kristaps 731: bufcat(h, sec ? sec : "1");
1.55 kristaps 732: break;
733: case('N'):
1.58 kristaps 734: buffmt(h, name);
1.55 kristaps 735: break;
736: default:
737: bufncat(h, p, 2);
738: break;
739: }
740: pp = p + 2;
741: }
742: if (pp)
743: bufcat(h, pp);
744: }
1.58 kristaps 745:
746:
747: void
748: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
749: {
1.62 kristaps 750: double v;
1.63 kristaps 751: const char *u;
1.58 kristaps 752:
753: v = su->scale;
754:
755: switch (su->unit) {
756: case (SCALE_CM):
757: u = "cm";
758: break;
759: case (SCALE_IN):
760: u = "in";
761: break;
762: case (SCALE_PC):
763: u = "pc";
764: break;
765: case (SCALE_PT):
766: u = "pt";
767: break;
1.59 kristaps 768: case (SCALE_EM):
769: u = "em";
770: break;
1.58 kristaps 771: case (SCALE_MM):
772: if (0 == (v /= 100))
773: v = 1;
774: u = "em";
775: break;
1.59 kristaps 776: case (SCALE_EN):
777: u = "ex";
778: break;
779: case (SCALE_BU):
780: u = "ex";
781: break;
1.58 kristaps 782: case (SCALE_VS):
783: u = "em";
784: break;
785: default:
786: u = "ex";
787: break;
788: }
789:
1.103 kristaps 790: /*
791: * XXX: the CSS spec isn't clear as to which types accept
792: * integer or real numbers, so we just make them all decimals.
793: */
794: buffmt(h, "%s: %.2f%s;", p, v, u);
1.58 kristaps 795: }
1.65 kristaps 796:
1.68 kristaps 797:
798: void
1.70 kristaps 799: html_idcat(char *dst, const char *src, int sz)
1.68 kristaps 800: {
1.70 kristaps 801: int ssz;
1.68 kristaps 802:
1.124 schwarze 803: assert(sz > 2);
1.68 kristaps 804:
805: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
806:
1.124 schwarze 807: /* We can't start with a number (bah). */
808:
809: if ('#' == *dst) {
810: dst++;
811: sz--;
812: }
813: if ('\0' == *dst) {
814: *dst++ = 'x';
815: *dst = '\0';
816: sz--;
817: }
818:
1.70 kristaps 819: for ( ; *dst != '\0' && sz; dst++, sz--)
1.68 kristaps 820: /* Jump to end. */ ;
1.70 kristaps 821:
822: for ( ; *src != '\0' && sz > 1; src++) {
1.73 kristaps 823: ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
1.70 kristaps 824: sz -= ssz;
825: dst += ssz;
826: }
1.68 kristaps 827: }
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