Annotation of mandoc/html.c, Revision 1.132
1.132 ! kristaps 1: /* $Id: html.c,v 1.131 2011/03/22 14:05:45 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"
1.51 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 */
1.125 kristaps 93: "colspan", /* ATTR_COLSPAN */
1.29 kristaps 94: };
1.10 kristaps 95:
1.126 schwarze 96: static void print_num(struct html *, const char *, size_t);
1.132 ! kristaps 97: static void print_spec(struct html *, const char *, size_t);
1.83 kristaps 98: static void print_res(struct html *, const char *, size_t);
1.82 kristaps 99: static void print_ctag(struct html *, enum htmltag);
1.93 kristaps 100: static void print_doctype(struct html *);
101: static void print_xmltype(struct html *);
1.88 kristaps 102: static int print_encode(struct html *, const char *, int);
1.132 ! kristaps 103: static void print_metaf(struct html *, enum mandoc_esc);
1.94 kristaps 104: static void print_attr(struct html *,
105: const char *, const char *);
1.93 kristaps 106: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 107:
108:
1.93 kristaps 109: static void *
110: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 111: {
1.30 kristaps 112: struct html *h;
1.63 kristaps 113: const char *toks[4];
114: char *v;
1.43 kristaps 115:
116: toks[0] = "style";
1.53 kristaps 117: toks[1] = "man";
1.54 kristaps 118: toks[2] = "includes";
119: toks[3] = NULL;
1.30 kristaps 120:
1.128 kristaps 121: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 122:
1.93 kristaps 123: h->type = type;
1.66 kristaps 124: h->tags.head = NULL;
1.72 kristaps 125: h->symtab = chars_init(CHARS_HTML);
1.41 kristaps 126:
1.47 kristaps 127: while (outopts && *outopts)
1.63 kristaps 128: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.43 kristaps 129: case (0):
130: h->style = v;
131: break;
132: case (1):
1.53 kristaps 133: h->base_man = v;
1.43 kristaps 134: break;
1.54 kristaps 135: case (2):
136: h->base_includes = v;
137: break;
1.43 kristaps 138: default:
139: break;
140: }
141:
1.30 kristaps 142: return(h);
1.29 kristaps 143: }
1.10 kristaps 144:
1.93 kristaps 145: void *
146: html_alloc(char *outopts)
147: {
148:
149: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
150: }
151:
152:
153: void *
154: xhtml_alloc(char *outopts)
155: {
156:
157: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
158: }
159:
1.33 kristaps 160:
1.29 kristaps 161: void
162: html_free(void *p)
163: {
1.30 kristaps 164: struct tag *tag;
165: struct html *h;
166:
167: h = (struct html *)p;
1.37 kristaps 168:
1.66 kristaps 169: while ((tag = h->tags.head) != NULL) {
170: h->tags.head = tag->next;
1.30 kristaps 171: free(tag);
172: }
1.36 kristaps 173:
174: if (h->symtab)
175: chars_free(h->symtab);
1.53 kristaps 176:
1.30 kristaps 177: free(h);
1.10 kristaps 178: }
1.2 kristaps 179:
1.33 kristaps 180:
1.51 kristaps 181: void
1.29 kristaps 182: print_gen_head(struct html *h)
183: {
1.41 kristaps 184: struct htmlpair tag[4];
185:
186: tag[0].key = ATTR_HTTPEQUIV;
187: tag[0].val = "Content-Type";
188: tag[1].key = ATTR_CONTENT;
189: tag[1].val = "text/html; charset=utf-8";
190: print_otag(h, TAG_META, 2, tag);
191:
192: tag[0].key = ATTR_NAME;
193: tag[0].val = "resource-type";
194: tag[1].key = ATTR_CONTENT;
195: tag[1].val = "document";
196: print_otag(h, TAG_META, 2, tag);
197:
198: if (h->style) {
199: tag[0].key = ATTR_REL;
200: tag[0].val = "stylesheet";
201: tag[1].key = ATTR_HREF;
202: tag[1].val = h->style;
203: tag[2].key = ATTR_TYPE;
204: tag[2].val = "text/css";
205: tag[3].key = ATTR_MEDIA;
206: tag[3].val = "all";
207: print_otag(h, TAG_LINK, 4, tag);
208: }
1.4 kristaps 209: }
210:
1.127 kristaps 211: /* ARGSUSED */
1.29 kristaps 212: static void
1.126 schwarze 213: print_num(struct html *h, const char *p, size_t len)
214: {
215: const char *rhs;
216:
217: rhs = chars_num2char(p, len);
218: if (rhs)
219: putchar((int)*rhs);
220: }
221:
222: static void
1.132 ! kristaps 223: print_spec(struct html *h, const char *p, size_t len)
1.32 kristaps 224: {
1.107 kristaps 225: int cp;
1.32 kristaps 226: const char *rhs;
227: size_t sz;
228:
1.107 kristaps 229: if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
230: printf("&#%d;", cp);
231: return;
1.132 ! kristaps 232: } else if (-1 == cp && 1 == len) {
1.108 kristaps 233: fwrite(p, 1, len, stdout);
234: return;
1.107 kristaps 235: } else if (-1 == cp)
236: return;
1.32 kristaps 237:
1.107 kristaps 238: if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
239: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 240: }
241:
1.33 kristaps 242:
1.32 kristaps 243: static void
1.83 kristaps 244: print_res(struct html *h, const char *p, size_t len)
1.32 kristaps 245: {
1.107 kristaps 246: int cp;
1.32 kristaps 247: const char *rhs;
248: size_t sz;
249:
1.107 kristaps 250: if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
251: printf("&#%d;", cp);
252: return;
253: } else if (-1 == cp)
254: return;
1.32 kristaps 255:
1.107 kristaps 256: if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
257: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 258: }
259:
1.33 kristaps 260:
1.88 kristaps 261: static void
1.132 ! kristaps 262: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 263: {
1.90 kristaps 264: enum htmlfont font;
1.88 kristaps 265:
266: switch (deco) {
1.132 ! kristaps 267: case (ESCAPE_FONTPREV):
1.90 kristaps 268: font = h->metal;
1.88 kristaps 269: break;
1.132 ! kristaps 270: case (ESCAPE_FONTITALIC):
1.90 kristaps 271: font = HTMLFONT_ITALIC;
272: break;
1.132 ! kristaps 273: case (ESCAPE_FONTBOLD):
1.90 kristaps 274: font = HTMLFONT_BOLD;
1.88 kristaps 275: break;
1.132 ! kristaps 276: case (ESCAPE_FONTROMAN):
1.90 kristaps 277: font = HTMLFONT_NONE;
1.88 kristaps 278: break;
279: default:
280: abort();
281: /* NOTREACHED */
282: }
283:
1.122 kristaps 284: if (h->metaf) {
285: print_tagq(h, h->metaf);
286: h->metaf = NULL;
287: }
288:
289: h->metal = h->metac;
290: h->metac = font;
291:
292: if (HTMLFONT_NONE != font)
293: h->metaf = HTMLFONT_BOLD == font ?
294: print_otag(h, TAG_B, 0, NULL) :
295: print_otag(h, TAG_I, 0, NULL);
1.88 kristaps 296: }
297:
298:
1.85 kristaps 299: static int
1.88 kristaps 300: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 301: {
1.77 kristaps 302: size_t sz;
1.85 kristaps 303: int len, nospace;
1.82 kristaps 304: const char *seq;
1.132 ! kristaps 305: enum mandoc_esc esc;
1.100 kristaps 306: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 307:
1.85 kristaps 308: nospace = 0;
309:
1.132 ! kristaps 310: while ('\0' != *p) {
1.100 kristaps 311: sz = strcspn(p, rejs);
1.77 kristaps 312:
313: fwrite(p, 1, sz, stdout);
1.132 ! kristaps 314: p += (int)sz;
1.77 kristaps 315:
1.132 ! kristaps 316: if ('\0' == *p)
! 317: break;
! 318:
! 319: switch (*p++) {
! 320: case ('<'):
1.82 kristaps 321: printf("<");
322: continue;
1.132 ! kristaps 323: case ('>'):
1.82 kristaps 324: printf(">");
325: continue;
1.132 ! kristaps 326: case ('&'):
1.82 kristaps 327: printf("&");
1.34 kristaps 328: continue;
1.132 ! kristaps 329: case (ASCII_HYPH):
1.100 kristaps 330: putchar('-');
331: continue;
1.132 ! kristaps 332: default:
1.77 kristaps 333: break;
1.132 ! kristaps 334: }
1.77 kristaps 335:
1.132 ! kristaps 336: esc = mandoc_escape(&p, &seq, &len);
! 337: if (ESCAPE_ERROR == esc)
! 338: break;
1.82 kristaps 339:
1.132 ! kristaps 340: switch (esc) {
! 341: case (ESCAPE_NUMBERED):
! 342: print_num(h, seq, len);
1.126 schwarze 343: break;
1.132 ! kristaps 344: case (ESCAPE_PREDEF):
! 345: print_res(h, seq, len);
1.82 kristaps 346: break;
1.132 ! kristaps 347: case (ESCAPE_SPECIAL):
! 348: print_spec(h, seq, len);
1.82 kristaps 349: break;
1.132 ! kristaps 350: case (ESCAPE_FONTPREV):
1.90 kristaps 351: /* FALLTHROUGH */
1.132 ! kristaps 352: case (ESCAPE_FONTBOLD):
1.88 kristaps 353: /* FALLTHROUGH */
1.132 ! kristaps 354: case (ESCAPE_FONTITALIC):
1.88 kristaps 355: /* FALLTHROUGH */
1.132 ! kristaps 356: case (ESCAPE_FONTROMAN):
1.88 kristaps 357: if (norecurse)
358: break;
1.132 ! kristaps 359: print_metaf(h, esc);
! 360: break;
! 361: case (ESCAPE_NOSPACE):
! 362: if ('\0' == *p)
! 363: nospace = 1;
1.88 kristaps 364: break;
1.82 kristaps 365: default:
366: break;
367: }
1.32 kristaps 368: }
1.85 kristaps 369:
370: return(nospace);
1.14 kristaps 371: }
372:
373:
1.94 kristaps 374: static void
375: print_attr(struct html *h, const char *key, const char *val)
376: {
377: printf(" %s=\"", key);
378: (void)print_encode(h, val, 1);
379: putchar('\"');
380: }
381:
382:
1.51 kristaps 383: struct tag *
1.29 kristaps 384: print_otag(struct html *h, enum htmltag tag,
385: int sz, const struct htmlpair *p)
1.14 kristaps 386: {
1.29 kristaps 387: int i;
1.30 kristaps 388: struct tag *t;
389:
1.94 kristaps 390: /* Push this tags onto the stack of open scopes. */
391:
1.30 kristaps 392: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 393: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 394: t->tag = tag;
1.66 kristaps 395: t->next = h->tags.head;
396: h->tags.head = t;
1.30 kristaps 397: } else
398: t = NULL;
1.29 kristaps 399:
400: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 401: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
402: /* Manage keeps! */
403: if ( ! (HTML_KEEP & h->flags)) {
404: if (HTML_PREKEEP & h->flags)
405: h->flags |= HTML_KEEP;
406: putchar(' ');
407: } else
408: printf(" ");
409: }
1.29 kristaps 410:
1.109 kristaps 411: if ( ! (h->flags & HTML_NONOSPACE))
412: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 413: else
414: h->flags |= HTML_NOSPACE;
1.109 kristaps 415:
1.94 kristaps 416: /* Print out the tag name and attributes. */
417:
1.29 kristaps 418: printf("<%s", htmltags[tag].name);
1.94 kristaps 419: for (i = 0; i < sz; i++)
420: print_attr(h, htmlattrs[p[i].key], p[i].val);
421:
422: /* Add non-overridable attributes. */
423:
424: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
425: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
426: print_attr(h, "xml:lang", "en");
427: print_attr(h, "lang", "en");
1.29 kristaps 428: }
1.93 kristaps 429:
1.94 kristaps 430: /* Accomodate for XML "well-formed" singleton escaping. */
431:
1.93 kristaps 432: if (HTML_AUTOCLOSE & htmltags[tag].flags)
433: switch (h->type) {
434: case (HTML_XHTML_1_0_STRICT):
435: putchar('/');
436: break;
437: default:
438: break;
439: }
440:
1.78 kristaps 441: putchar('>');
1.14 kristaps 442:
1.29 kristaps 443: h->flags |= HTML_NOSPACE;
1.117 kristaps 444:
445: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
446: putchar('\n');
447:
1.30 kristaps 448: return(t);
1.14 kristaps 449: }
450:
451:
1.29 kristaps 452: static void
453: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 454: {
455:
1.29 kristaps 456: printf("</%s>", htmltags[tag].name);
1.71 kristaps 457: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 458: h->flags |= HTML_NOSPACE;
1.78 kristaps 459: putchar('\n');
1.87 kristaps 460: }
1.14 kristaps 461: }
462:
463:
1.51 kristaps 464: void
1.93 kristaps 465: print_gen_decls(struct html *h)
1.1 kristaps 466: {
1.93 kristaps 467:
468: print_xmltype(h);
469: print_doctype(h);
470: }
471:
472:
473: static void
474: print_xmltype(struct html *h)
475: {
476:
1.100 kristaps 477: if (HTML_XHTML_1_0_STRICT == h->type)
1.121 kristaps 478: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.93 kristaps 479: }
480:
481:
482: static void
483: print_doctype(struct html *h)
484: {
485: const char *doctype;
486: const char *dtd;
1.96 kristaps 487: const char *name;
1.93 kristaps 488:
489: switch (h->type) {
490: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 491: name = "HTML";
1.93 kristaps 492: doctype = "-//W3C//DTD HTML 4.01//EN";
493: dtd = "http://www.w3.org/TR/html4/strict.dtd";
494: break;
495: default:
1.96 kristaps 496: name = "html";
1.93 kristaps 497: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
498: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
499: break;
500: }
501:
1.96 kristaps 502: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
503: name, doctype, dtd);
1.1 kristaps 504: }
505:
1.51 kristaps 506: void
1.104 kristaps 507: print_text(struct html *h, const char *word)
1.1 kristaps 508: {
509:
1.105 kristaps 510: if ( ! (HTML_NOSPACE & h->flags)) {
511: /* Manage keeps! */
512: if ( ! (HTML_KEEP & h->flags)) {
513: if (HTML_PREKEEP & h->flags)
514: h->flags |= HTML_KEEP;
515: putchar(' ');
516: } else
517: printf(" ");
518: }
1.30 kristaps 519:
1.122 kristaps 520: assert(NULL == h->metaf);
521: if (HTMLFONT_NONE != h->metac)
522: h->metaf = HTMLFONT_BOLD == h->metac ?
523: print_otag(h, TAG_B, 0, NULL) :
524: print_otag(h, TAG_I, 0, NULL);
525:
1.104 kristaps 526: assert(word);
527: if ( ! print_encode(h, word, 0))
1.109 kristaps 528: if ( ! (h->flags & HTML_NONOSPACE))
529: h->flags &= ~HTML_NOSPACE;
1.122 kristaps 530:
531: if (h->metaf) {
532: print_tagq(h, h->metaf);
533: h->metaf = NULL;
534: }
1.113 schwarze 535:
536: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 537: }
1.30 kristaps 538:
539:
1.51 kristaps 540: void
1.30 kristaps 541: print_tagq(struct html *h, const struct tag *until)
542: {
543: struct tag *tag;
544:
1.66 kristaps 545: while ((tag = h->tags.head) != NULL) {
1.125 kristaps 546: /*
547: * Remember to close out and nullify the current
548: * meta-font and table, if applicable.
549: */
1.89 kristaps 550: if (tag == h->metaf)
551: h->metaf = NULL;
1.125 kristaps 552: if (tag == h->tblt)
553: h->tblt = NULL;
1.30 kristaps 554: print_ctag(h, tag->tag);
1.66 kristaps 555: h->tags.head = tag->next;
1.30 kristaps 556: free(tag);
557: if (until && tag == until)
558: return;
559: }
560: }
561:
562:
1.51 kristaps 563: void
1.30 kristaps 564: print_stagq(struct html *h, const struct tag *suntil)
565: {
566: struct tag *tag;
567:
1.66 kristaps 568: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 569: if (suntil && tag == suntil)
570: return;
1.125 kristaps 571: /*
572: * Remember to close out and nullify the current
573: * meta-font and table, if applicable.
574: */
1.89 kristaps 575: if (tag == h->metaf)
576: h->metaf = NULL;
1.125 kristaps 577: if (tag == h->tblt)
578: h->tblt = NULL;
1.30 kristaps 579: print_ctag(h, tag->tag);
1.66 kristaps 580: h->tags.head = tag->next;
1.30 kristaps 581: free(tag);
582: }
583: }
1.55 kristaps 584:
585:
586: void
587: bufinit(struct html *h)
588: {
589:
590: h->buf[0] = '\0';
591: h->buflen = 0;
592: }
593:
594:
595: void
1.58 kristaps 596: bufcat_style(struct html *h, const char *key, const char *val)
597: {
598:
599: bufcat(h, key);
600: bufncat(h, ":", 1);
601: bufcat(h, val);
602: bufncat(h, ";", 1);
603: }
604:
605:
606: void
1.55 kristaps 607: bufcat(struct html *h, const char *p)
608: {
609:
610: bufncat(h, p, strlen(p));
611: }
612:
613:
614: void
615: buffmt(struct html *h, const char *fmt, ...)
616: {
617: va_list ap;
618:
619: va_start(ap, fmt);
1.56 kristaps 620: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 621: BUFSIZ - h->buflen - 1, fmt, ap);
622: va_end(ap);
623: h->buflen = strlen(h->buf);
624: }
625:
626:
627: void
628: bufncat(struct html *h, const char *p, size_t sz)
629: {
630:
631: if (h->buflen + sz > BUFSIZ - 1)
632: sz = BUFSIZ - 1 - h->buflen;
633:
634: (void)strncat(h->buf, p, sz);
635: h->buflen += sz;
636: }
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:
646: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 647: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 648: switch (*(p + 1)) {
649: case('I'):
650: bufcat(h, name);
651: break;
652: default:
653: bufncat(h, p, 2);
654: break;
655: }
656: pp = p + 2;
657: }
658: if (pp)
659: bufcat(h, pp);
660: }
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:
671: /* LINTED */
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'):
1.58 kristaps 679: buffmt(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:
692: void
693: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
694: {
1.62 kristaps 695: double v;
1.63 kristaps 696: const char *u;
1.58 kristaps 697:
698: v = su->scale;
699:
700: switch (su->unit) {
701: case (SCALE_CM):
702: u = "cm";
703: break;
704: case (SCALE_IN):
705: u = "in";
706: break;
707: case (SCALE_PC):
708: u = "pc";
709: break;
710: case (SCALE_PT):
711: u = "pt";
712: break;
1.59 kristaps 713: case (SCALE_EM):
714: u = "em";
715: break;
1.58 kristaps 716: case (SCALE_MM):
717: if (0 == (v /= 100))
718: v = 1;
719: u = "em";
720: break;
1.59 kristaps 721: case (SCALE_EN):
722: u = "ex";
723: break;
724: case (SCALE_BU):
725: u = "ex";
726: break;
1.58 kristaps 727: case (SCALE_VS):
728: u = "em";
729: break;
730: default:
731: u = "ex";
732: break;
733: }
734:
1.103 kristaps 735: /*
736: * XXX: the CSS spec isn't clear as to which types accept
737: * integer or real numbers, so we just make them all decimals.
738: */
739: buffmt(h, "%s: %.2f%s;", p, v, u);
1.58 kristaps 740: }
1.65 kristaps 741:
1.68 kristaps 742:
743: void
1.70 kristaps 744: html_idcat(char *dst, const char *src, int sz)
1.68 kristaps 745: {
1.70 kristaps 746: int ssz;
1.68 kristaps 747:
1.124 schwarze 748: assert(sz > 2);
1.68 kristaps 749:
750: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
751:
1.124 schwarze 752: /* We can't start with a number (bah). */
753:
754: if ('#' == *dst) {
755: dst++;
756: sz--;
757: }
758: if ('\0' == *dst) {
759: *dst++ = 'x';
760: *dst = '\0';
761: sz--;
762: }
763:
1.70 kristaps 764: for ( ; *dst != '\0' && sz; dst++, sz--)
1.68 kristaps 765: /* Jump to end. */ ;
1.70 kristaps 766:
767: for ( ; *src != '\0' && sz > 1; src++) {
1.73 kristaps 768: ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
1.70 kristaps 769: sz -= ssz;
770: dst += ssz;
771: }
1.68 kristaps 772: }
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