Annotation of mandoc/html.c, Revision 1.152
1.152 ! schwarze 1: /* $Id: html.c,v 1.151 2012/05/31 22:29:13 schwarze Exp $ */
1.1 kristaps 2: /*
1.126 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.152 ! schwarze 4: * Copyright (c) 2011, 2012, 2013 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"
1.138 kristaps 34: #include "libmandoc.h"
1.58 kristaps 35: #include "out.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:
1.140 kristaps 97: static const char *const roffscales[SCALE_MAX] = {
98: "cm", /* SCALE_CM */
99: "in", /* SCALE_IN */
100: "pc", /* SCALE_PC */
101: "pt", /* SCALE_PT */
102: "em", /* SCALE_EM */
103: "em", /* SCALE_MM */
104: "ex", /* SCALE_EN */
105: "ex", /* SCALE_BU */
106: "em", /* SCALE_VS */
107: "ex", /* SCALE_FS */
108: };
109:
1.141 kristaps 110: static void bufncat(struct html *, const char *, size_t);
111: static void print_ctag(struct html *, enum htmltag);
112: static int print_encode(struct html *, const char *, int);
113: static void print_metaf(struct html *, enum mandoc_esc);
114: static void print_attr(struct html *, const char *, const char *);
115: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 116:
1.93 kristaps 117: static void *
118: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 119: {
1.30 kristaps 120: struct html *h;
1.150 kristaps 121: const char *toks[5];
1.63 kristaps 122: char *v;
1.43 kristaps 123:
124: toks[0] = "style";
1.53 kristaps 125: toks[1] = "man";
1.54 kristaps 126: toks[2] = "includes";
1.150 kristaps 127: toks[3] = "fragment";
128: toks[4] = NULL;
1.30 kristaps 129:
1.128 kristaps 130: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 131:
1.93 kristaps 132: h->type = type;
1.66 kristaps 133: h->tags.head = NULL;
1.136 kristaps 134: h->symtab = mchars_alloc();
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;
1.150 kristaps 146: break;
147: case (3):
148: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 149: break;
1.43 kristaps 150: default:
151: break;
152: }
153:
1.30 kristaps 154: return(h);
1.29 kristaps 155: }
1.10 kristaps 156:
1.93 kristaps 157: void *
158: html_alloc(char *outopts)
159: {
160:
161: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
162: }
163:
164:
165: void *
166: xhtml_alloc(char *outopts)
167: {
168:
169: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
170: }
171:
1.33 kristaps 172:
1.29 kristaps 173: void
174: html_free(void *p)
175: {
1.30 kristaps 176: struct tag *tag;
177: struct html *h;
178:
179: h = (struct html *)p;
1.37 kristaps 180:
1.66 kristaps 181: while ((tag = h->tags.head) != NULL) {
182: h->tags.head = tag->next;
1.30 kristaps 183: free(tag);
184: }
1.36 kristaps 185:
186: if (h->symtab)
1.133 kristaps 187: mchars_free(h->symtab);
1.53 kristaps 188:
1.30 kristaps 189: free(h);
1.10 kristaps 190: }
1.2 kristaps 191:
1.33 kristaps 192:
1.51 kristaps 193: void
1.29 kristaps 194: print_gen_head(struct html *h)
195: {
1.41 kristaps 196: struct htmlpair tag[4];
197:
198: tag[0].key = ATTR_HTTPEQUIV;
199: tag[0].val = "Content-Type";
200: tag[1].key = ATTR_CONTENT;
201: tag[1].val = "text/html; charset=utf-8";
202: print_otag(h, TAG_META, 2, tag);
203:
204: tag[0].key = ATTR_NAME;
205: tag[0].val = "resource-type";
206: tag[1].key = ATTR_CONTENT;
207: tag[1].val = "document";
208: print_otag(h, TAG_META, 2, tag);
209:
210: if (h->style) {
211: tag[0].key = ATTR_REL;
212: tag[0].val = "stylesheet";
213: tag[1].key = ATTR_HREF;
214: tag[1].val = h->style;
215: tag[2].key = ATTR_TYPE;
216: tag[2].val = "text/css";
217: tag[3].key = ATTR_MEDIA;
218: tag[3].val = "all";
219: print_otag(h, TAG_LINK, 4, tag);
220: }
1.4 kristaps 221: }
222:
1.126 schwarze 223: static void
1.132 kristaps 224: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 225: {
1.90 kristaps 226: enum htmlfont font;
1.88 kristaps 227:
228: switch (deco) {
1.132 kristaps 229: case (ESCAPE_FONTPREV):
1.90 kristaps 230: font = h->metal;
1.88 kristaps 231: break;
1.132 kristaps 232: case (ESCAPE_FONTITALIC):
1.90 kristaps 233: font = HTMLFONT_ITALIC;
234: break;
1.132 kristaps 235: case (ESCAPE_FONTBOLD):
1.90 kristaps 236: font = HTMLFONT_BOLD;
1.88 kristaps 237: break;
1.152 ! schwarze 238: case (ESCAPE_FONTBI):
! 239: font = HTMLFONT_BI;
! 240: break;
1.145 kristaps 241: case (ESCAPE_FONT):
242: /* FALLTHROUGH */
1.132 kristaps 243: case (ESCAPE_FONTROMAN):
1.90 kristaps 244: font = HTMLFONT_NONE;
1.88 kristaps 245: break;
246: default:
247: abort();
248: /* NOTREACHED */
249: }
250:
1.122 kristaps 251: if (h->metaf) {
252: print_tagq(h, h->metaf);
253: h->metaf = NULL;
254: }
255:
256: h->metal = h->metac;
257: h->metac = font;
258:
1.152 ! schwarze 259: switch (font) {
! 260: case (HTMLFONT_ITALIC):
! 261: h->metaf = print_otag(h, TAG_I, 0, NULL);
! 262: break;
! 263: case (HTMLFONT_BOLD):
! 264: h->metaf = print_otag(h, TAG_B, 0, NULL);
! 265: break;
! 266: case (HTMLFONT_BI):
! 267: h->metaf = print_otag(h, TAG_B, 0, NULL);
! 268: print_otag(h, TAG_I, 0, NULL);
! 269: break;
! 270: default:
! 271: break;
! 272: }
1.88 kristaps 273: }
274:
1.138 kristaps 275: int
276: html_strlen(const char *cp)
277: {
1.151 schwarze 278: size_t rsz;
279: int skip, sz;
1.138 kristaps 280:
281: /*
282: * Account for escaped sequences within string length
283: * calculations. This follows the logic in term_strlen() as we
284: * must calculate the width of produced strings.
285: * Assume that characters are always width of "1". This is
286: * hacky, but it gets the job done for approximation of widths.
287: */
288:
289: sz = 0;
1.151 schwarze 290: skip = 0;
291: while (1) {
292: rsz = strcspn(cp, "\\");
293: if (rsz) {
294: cp += rsz;
295: if (skip) {
296: skip = 0;
297: rsz--;
298: }
299: sz += rsz;
300: }
301: if ('\0' == *cp)
302: break;
303: cp++;
304: switch (mandoc_escape(&cp, NULL, NULL)) {
1.138 kristaps 305: case (ESCAPE_ERROR):
306: return(sz);
1.144 kristaps 307: case (ESCAPE_UNICODE):
308: /* FALLTHROUGH */
1.139 kristaps 309: case (ESCAPE_NUMBERED):
310: /* FALLTHROUGH */
1.138 kristaps 311: case (ESCAPE_SPECIAL):
1.151 schwarze 312: if (skip)
313: skip = 0;
314: else
315: sz++;
316: break;
317: case (ESCAPE_SKIPCHAR):
318: skip = 1;
1.138 kristaps 319: break;
320: default:
321: break;
322: }
323: }
1.151 schwarze 324: return(sz);
1.138 kristaps 325: }
1.88 kristaps 326:
1.85 kristaps 327: static int
1.88 kristaps 328: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 329: {
1.77 kristaps 330: size_t sz;
1.141 kristaps 331: int c, len, nospace;
1.82 kristaps 332: const char *seq;
1.132 kristaps 333: enum mandoc_esc esc;
1.100 kristaps 334: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 335:
1.85 kristaps 336: nospace = 0;
337:
1.132 kristaps 338: while ('\0' != *p) {
1.151 schwarze 339: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
340: h->flags &= ~HTML_SKIPCHAR;
341: p++;
342: continue;
343: }
344:
1.100 kristaps 345: sz = strcspn(p, rejs);
1.77 kristaps 346:
347: fwrite(p, 1, sz, stdout);
1.132 kristaps 348: p += (int)sz;
1.77 kristaps 349:
1.132 kristaps 350: if ('\0' == *p)
351: break;
352:
353: switch (*p++) {
354: case ('<'):
1.82 kristaps 355: printf("<");
356: continue;
1.132 kristaps 357: case ('>'):
1.82 kristaps 358: printf(">");
359: continue;
1.132 kristaps 360: case ('&'):
1.82 kristaps 361: printf("&");
1.34 kristaps 362: continue;
1.132 kristaps 363: case (ASCII_HYPH):
1.100 kristaps 364: putchar('-');
365: continue;
1.132 kristaps 366: default:
1.77 kristaps 367: break;
1.132 kristaps 368: }
1.77 kristaps 369:
1.132 kristaps 370: esc = mandoc_escape(&p, &seq, &len);
371: if (ESCAPE_ERROR == esc)
372: break;
1.82 kristaps 373:
1.132 kristaps 374: switch (esc) {
1.151 schwarze 375: case (ESCAPE_FONT):
376: /* FALLTHROUGH */
377: case (ESCAPE_FONTPREV):
378: /* FALLTHROUGH */
379: case (ESCAPE_FONTBOLD):
380: /* FALLTHROUGH */
381: case (ESCAPE_FONTITALIC):
382: /* FALLTHROUGH */
1.152 ! schwarze 383: case (ESCAPE_FONTBI):
! 384: /* FALLTHROUGH */
1.151 schwarze 385: case (ESCAPE_FONTROMAN):
386: if (0 == norecurse)
387: print_metaf(h, esc);
388: continue;
389: case (ESCAPE_SKIPCHAR):
390: h->flags |= HTML_SKIPCHAR;
391: continue;
392: default:
393: break;
394: }
395:
396: if (h->flags & HTML_SKIPCHAR) {
397: h->flags &= ~HTML_SKIPCHAR;
398: continue;
399: }
400:
401: switch (esc) {
1.144 kristaps 402: case (ESCAPE_UNICODE):
403: /* Skip passed "u" header. */
404: c = mchars_num2uc(seq + 1, len - 1);
405: if ('\0' != c)
406: printf("&#x%x;", c);
407: break;
1.132 kristaps 408: case (ESCAPE_NUMBERED):
1.141 kristaps 409: c = mchars_num2char(seq, len);
410: if ('\0' != c)
411: putchar(c);
1.82 kristaps 412: break;
1.132 kristaps 413: case (ESCAPE_SPECIAL):
1.147 kristaps 414: c = mchars_spec2cp(h->symtab, seq, len);
415: if (c > 0)
416: printf("&#%d;", c);
417: else if (-1 == c && 1 == len)
418: putchar((int)*seq);
1.132 kristaps 419: break;
420: case (ESCAPE_NOSPACE):
421: if ('\0' == *p)
422: nospace = 1;
1.88 kristaps 423: break;
1.82 kristaps 424: default:
425: break;
426: }
1.32 kristaps 427: }
1.85 kristaps 428:
429: return(nospace);
1.14 kristaps 430: }
431:
432:
1.94 kristaps 433: static void
434: print_attr(struct html *h, const char *key, const char *val)
435: {
436: printf(" %s=\"", key);
437: (void)print_encode(h, val, 1);
438: putchar('\"');
439: }
440:
441:
1.51 kristaps 442: struct tag *
1.29 kristaps 443: print_otag(struct html *h, enum htmltag tag,
444: int sz, const struct htmlpair *p)
1.14 kristaps 445: {
1.29 kristaps 446: int i;
1.30 kristaps 447: struct tag *t;
448:
1.94 kristaps 449: /* Push this tags onto the stack of open scopes. */
450:
1.30 kristaps 451: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 452: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 453: t->tag = tag;
1.66 kristaps 454: t->next = h->tags.head;
455: h->tags.head = t;
1.30 kristaps 456: } else
457: t = NULL;
1.29 kristaps 458:
459: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 460: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
461: /* Manage keeps! */
462: if ( ! (HTML_KEEP & h->flags)) {
463: if (HTML_PREKEEP & h->flags)
464: h->flags |= HTML_KEEP;
465: putchar(' ');
466: } else
467: printf(" ");
468: }
1.29 kristaps 469:
1.109 kristaps 470: if ( ! (h->flags & HTML_NONOSPACE))
471: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 472: else
473: h->flags |= HTML_NOSPACE;
1.109 kristaps 474:
1.94 kristaps 475: /* Print out the tag name and attributes. */
476:
1.29 kristaps 477: printf("<%s", htmltags[tag].name);
1.94 kristaps 478: for (i = 0; i < sz; i++)
479: print_attr(h, htmlattrs[p[i].key], p[i].val);
480:
481: /* Add non-overridable attributes. */
482:
483: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
484: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
485: print_attr(h, "xml:lang", "en");
486: print_attr(h, "lang", "en");
1.29 kristaps 487: }
1.93 kristaps 488:
1.134 kristaps 489: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 490:
1.93 kristaps 491: if (HTML_AUTOCLOSE & htmltags[tag].flags)
492: switch (h->type) {
493: case (HTML_XHTML_1_0_STRICT):
494: putchar('/');
495: break;
496: default:
497: break;
498: }
499:
1.78 kristaps 500: putchar('>');
1.14 kristaps 501:
1.29 kristaps 502: h->flags |= HTML_NOSPACE;
1.117 kristaps 503:
504: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
505: putchar('\n');
506:
1.30 kristaps 507: return(t);
1.14 kristaps 508: }
509:
510:
1.29 kristaps 511: static void
512: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 513: {
514:
1.29 kristaps 515: printf("</%s>", htmltags[tag].name);
1.71 kristaps 516: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 517: h->flags |= HTML_NOSPACE;
1.78 kristaps 518: putchar('\n');
1.87 kristaps 519: }
1.14 kristaps 520: }
521:
1.51 kristaps 522: void
1.93 kristaps 523: print_gen_decls(struct html *h)
1.1 kristaps 524: {
1.93 kristaps 525: const char *doctype;
526: const char *dtd;
1.96 kristaps 527: const char *name;
1.93 kristaps 528:
529: switch (h->type) {
530: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 531: name = "HTML";
1.93 kristaps 532: doctype = "-//W3C//DTD HTML 4.01//EN";
533: dtd = "http://www.w3.org/TR/html4/strict.dtd";
534: break;
535: default:
1.141 kristaps 536: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 537: name = "html";
1.93 kristaps 538: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
539: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
540: break;
541: }
542:
1.96 kristaps 543: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
544: name, doctype, dtd);
1.1 kristaps 545: }
546:
1.51 kristaps 547: void
1.104 kristaps 548: print_text(struct html *h, const char *word)
1.1 kristaps 549: {
550:
1.105 kristaps 551: if ( ! (HTML_NOSPACE & h->flags)) {
552: /* Manage keeps! */
553: if ( ! (HTML_KEEP & h->flags)) {
554: if (HTML_PREKEEP & h->flags)
555: h->flags |= HTML_KEEP;
556: putchar(' ');
557: } else
558: printf(" ");
559: }
1.30 kristaps 560:
1.122 kristaps 561: assert(NULL == h->metaf);
1.152 ! schwarze 562: switch (h->metac) {
! 563: case (HTMLFONT_ITALIC):
! 564: h->metaf = print_otag(h, TAG_I, 0, NULL);
! 565: break;
! 566: case (HTMLFONT_BOLD):
! 567: h->metaf = print_otag(h, TAG_B, 0, NULL);
! 568: break;
! 569: case (HTMLFONT_BI):
! 570: h->metaf = print_otag(h, TAG_B, 0, NULL);
! 571: print_otag(h, TAG_I, 0, NULL);
! 572: break;
! 573: default:
! 574: break;
! 575: }
1.122 kristaps 576:
1.104 kristaps 577: assert(word);
1.149 kristaps 578: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 579: if ( ! (h->flags & HTML_NONOSPACE))
580: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 581: } else
582: h->flags |= HTML_NOSPACE;
1.122 kristaps 583:
584: if (h->metaf) {
585: print_tagq(h, h->metaf);
586: h->metaf = NULL;
587: }
1.113 schwarze 588:
589: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 590: }
1.30 kristaps 591:
592:
1.51 kristaps 593: void
1.30 kristaps 594: print_tagq(struct html *h, const struct tag *until)
595: {
596: struct tag *tag;
597:
1.66 kristaps 598: while ((tag = h->tags.head) != NULL) {
1.125 kristaps 599: /*
600: * Remember to close out and nullify the current
601: * meta-font and table, if applicable.
602: */
1.89 kristaps 603: if (tag == h->metaf)
604: h->metaf = NULL;
1.125 kristaps 605: if (tag == h->tblt)
606: h->tblt = NULL;
1.30 kristaps 607: print_ctag(h, tag->tag);
1.66 kristaps 608: h->tags.head = tag->next;
1.30 kristaps 609: free(tag);
610: if (until && tag == until)
611: return;
612: }
613: }
614:
615:
1.51 kristaps 616: void
1.30 kristaps 617: print_stagq(struct html *h, const struct tag *suntil)
618: {
619: struct tag *tag;
620:
1.66 kristaps 621: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 622: if (suntil && tag == suntil)
623: return;
1.125 kristaps 624: /*
625: * Remember to close out and nullify the current
626: * meta-font and table, if applicable.
627: */
1.89 kristaps 628: if (tag == h->metaf)
629: h->metaf = NULL;
1.125 kristaps 630: if (tag == h->tblt)
631: h->tblt = NULL;
1.30 kristaps 632: print_ctag(h, tag->tag);
1.66 kristaps 633: h->tags.head = tag->next;
1.30 kristaps 634: free(tag);
635: }
636: }
1.55 kristaps 637:
638: void
639: bufinit(struct html *h)
640: {
641:
642: h->buf[0] = '\0';
643: h->buflen = 0;
644: }
645:
646: void
1.58 kristaps 647: bufcat_style(struct html *h, const char *key, const char *val)
648: {
649:
650: bufcat(h, key);
1.141 kristaps 651: bufcat(h, ":");
1.58 kristaps 652: bufcat(h, val);
1.141 kristaps 653: bufcat(h, ";");
1.58 kristaps 654: }
655:
656: void
1.55 kristaps 657: bufcat(struct html *h, const char *p)
658: {
659:
1.141 kristaps 660: h->buflen = strlcat(h->buf, p, BUFSIZ);
661: assert(h->buflen < BUFSIZ);
1.55 kristaps 662: }
663:
664: void
1.141 kristaps 665: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 666: {
667: va_list ap;
668:
669: va_start(ap, fmt);
1.56 kristaps 670: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 671: BUFSIZ - h->buflen - 1, fmt, ap);
672: va_end(ap);
673: h->buflen = strlen(h->buf);
674: }
675:
1.141 kristaps 676: static void
1.55 kristaps 677: bufncat(struct html *h, const char *p, size_t sz)
678: {
679:
1.141 kristaps 680: assert(h->buflen + sz + 1 < BUFSIZ);
681: strncat(h->buf, p, sz);
1.55 kristaps 682: h->buflen += sz;
683: }
684:
685: void
686: buffmt_includes(struct html *h, const char *name)
687: {
688: const char *p, *pp;
689:
690: pp = h->base_includes;
1.61 kristaps 691:
1.143 kristaps 692: bufinit(h);
1.61 kristaps 693: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 694: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 695: switch (*(p + 1)) {
696: case('I'):
697: bufcat(h, name);
698: break;
699: default:
700: bufncat(h, p, 2);
701: break;
702: }
703: pp = p + 2;
704: }
705: if (pp)
706: bufcat(h, pp);
707: }
708:
709: void
710: buffmt_man(struct html *h,
711: const char *name, const char *sec)
712: {
713: const char *p, *pp;
714:
715: pp = h->base_man;
1.61 kristaps 716:
1.143 kristaps 717: bufinit(h);
1.61 kristaps 718: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 719: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 720: switch (*(p + 1)) {
721: case('S'):
1.58 kristaps 722: bufcat(h, sec ? sec : "1");
1.55 kristaps 723: break;
724: case('N'):
1.141 kristaps 725: bufcat_fmt(h, name);
1.55 kristaps 726: break;
727: default:
728: bufncat(h, p, 2);
729: break;
730: }
731: pp = p + 2;
732: }
733: if (pp)
734: bufcat(h, pp);
735: }
1.58 kristaps 736:
737: void
738: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
739: {
1.62 kristaps 740: double v;
1.58 kristaps 741:
742: v = su->scale;
1.140 kristaps 743: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
744: v = 1.0;
1.58 kristaps 745:
1.141 kristaps 746: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 747: }
1.68 kristaps 748:
749: void
1.142 kristaps 750: bufcat_id(struct html *h, const char *src)
1.68 kristaps 751: {
752:
753: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
754:
1.142 kristaps 755: while ('\0' != *src)
756: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 757: }
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