Annotation of mandoc/html.c, Revision 1.164
1.164 ! kristaps 1: /* $Id: html.c,v 1.163 2014/08/14 00:31:43 schwarze Exp $ */
1.1 kristaps 2: /*
1.126 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.154 schwarze 4: * Copyright (c) 2011, 2012, 2013, 2014 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: #include "config.h"
19:
1.41 kristaps 20: #include <sys/types.h>
1.30 kristaps 21:
1.1 kristaps 22: #include <assert.h>
1.68 kristaps 23: #include <ctype.h>
1.76 kristaps 24: #include <stdarg.h>
1.29 kristaps 25: #include <stdio.h>
1.63 kristaps 26: #include <stdint.h>
1.1 kristaps 27: #include <stdlib.h>
1.33 kristaps 28: #include <string.h>
1.45 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.100 kristaps 31: #include "mandoc.h"
1.155 schwarze 32: #include "mandoc_aux.h"
1.138 kristaps 33: #include "libmandoc.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 */
1.164 ! kristaps 94: "charset", /* ATTR_CHARSET */
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);
1.159 schwarze 112: static int print_escape(char);
1.141 kristaps 113: static int print_encode(struct html *, const char *, int);
114: static void print_metaf(struct html *, enum mandoc_esc);
115: static void print_attr(struct html *, const char *, const char *);
116: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 117:
1.156 schwarze 118:
1.93 kristaps 119: static void *
120: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 121: {
1.30 kristaps 122: struct html *h;
1.150 kristaps 123: const char *toks[5];
1.63 kristaps 124: char *v;
1.43 kristaps 125:
126: toks[0] = "style";
1.53 kristaps 127: toks[1] = "man";
1.54 kristaps 128: toks[2] = "includes";
1.150 kristaps 129: toks[3] = "fragment";
130: toks[4] = NULL;
1.30 kristaps 131:
1.128 kristaps 132: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 133:
1.93 kristaps 134: h->type = type;
1.66 kristaps 135: h->tags.head = NULL;
1.136 kristaps 136: h->symtab = mchars_alloc();
1.41 kristaps 137:
1.47 kristaps 138: while (outopts && *outopts)
1.63 kristaps 139: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 140: case 0:
1.43 kristaps 141: h->style = v;
142: break;
1.156 schwarze 143: case 1:
1.53 kristaps 144: h->base_man = v;
1.43 kristaps 145: break;
1.156 schwarze 146: case 2:
1.54 kristaps 147: h->base_includes = v;
1.150 kristaps 148: break;
1.156 schwarze 149: case 3:
1.150 kristaps 150: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 151: break;
1.43 kristaps 152: default:
153: break;
154: }
155:
1.30 kristaps 156: return(h);
1.29 kristaps 157: }
1.10 kristaps 158:
1.93 kristaps 159: void *
160: html_alloc(char *outopts)
161: {
162:
163: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
164: }
165:
166: void *
167: xhtml_alloc(char *outopts)
168: {
169:
170: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
171: }
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) {
1.156 schwarze 182: h->tags.head = tag->next;
1.30 kristaps 183: free(tag);
184: }
1.156 schwarze 185:
1.36 kristaps 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:
1.51 kristaps 192: void
1.29 kristaps 193: print_gen_head(struct html *h)
194: {
1.41 kristaps 195: struct htmlpair tag[4];
196:
1.164 ! kristaps 197: tag[0].key = ATTR_CHARSET;
! 198: tag[0].val = "utf-8";
! 199: print_otag(h, TAG_META, 1, tag);
1.41 kristaps 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:
1.126 schwarze 214: static void
1.132 kristaps 215: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 216: {
1.90 kristaps 217: enum htmlfont font;
1.88 kristaps 218:
219: switch (deco) {
1.156 schwarze 220: case ESCAPE_FONTPREV:
1.90 kristaps 221: font = h->metal;
1.88 kristaps 222: break;
1.156 schwarze 223: case ESCAPE_FONTITALIC:
1.90 kristaps 224: font = HTMLFONT_ITALIC;
225: break;
1.156 schwarze 226: case ESCAPE_FONTBOLD:
1.90 kristaps 227: font = HTMLFONT_BOLD;
1.88 kristaps 228: break;
1.156 schwarze 229: case ESCAPE_FONTBI:
1.152 schwarze 230: font = HTMLFONT_BI;
231: break;
1.156 schwarze 232: case ESCAPE_FONT:
1.145 kristaps 233: /* FALLTHROUGH */
1.156 schwarze 234: case ESCAPE_FONTROMAN:
1.90 kristaps 235: font = HTMLFONT_NONE;
1.88 kristaps 236: break;
237: default:
238: abort();
239: /* NOTREACHED */
240: }
241:
1.122 kristaps 242: if (h->metaf) {
243: print_tagq(h, h->metaf);
244: h->metaf = NULL;
245: }
246:
247: h->metal = h->metac;
248: h->metac = font;
249:
1.152 schwarze 250: switch (font) {
1.156 schwarze 251: case HTMLFONT_ITALIC:
1.152 schwarze 252: h->metaf = print_otag(h, TAG_I, 0, NULL);
253: break;
1.156 schwarze 254: case HTMLFONT_BOLD:
1.152 schwarze 255: h->metaf = print_otag(h, TAG_B, 0, NULL);
256: break;
1.156 schwarze 257: case HTMLFONT_BI:
1.152 schwarze 258: h->metaf = print_otag(h, TAG_B, 0, NULL);
259: print_otag(h, TAG_I, 0, NULL);
260: break;
261: default:
262: break;
263: }
1.88 kristaps 264: }
265:
1.138 kristaps 266: int
267: html_strlen(const char *cp)
268: {
1.151 schwarze 269: size_t rsz;
270: int skip, sz;
1.138 kristaps 271:
272: /*
273: * Account for escaped sequences within string length
274: * calculations. This follows the logic in term_strlen() as we
275: * must calculate the width of produced strings.
276: * Assume that characters are always width of "1". This is
277: * hacky, but it gets the job done for approximation of widths.
278: */
279:
280: sz = 0;
1.151 schwarze 281: skip = 0;
282: while (1) {
283: rsz = strcspn(cp, "\\");
284: if (rsz) {
285: cp += rsz;
286: if (skip) {
287: skip = 0;
288: rsz--;
289: }
290: sz += rsz;
291: }
292: if ('\0' == *cp)
293: break;
294: cp++;
295: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 296: case ESCAPE_ERROR:
1.138 kristaps 297: return(sz);
1.156 schwarze 298: case ESCAPE_UNICODE:
1.144 kristaps 299: /* FALLTHROUGH */
1.156 schwarze 300: case ESCAPE_NUMBERED:
1.139 kristaps 301: /* FALLTHROUGH */
1.156 schwarze 302: case ESCAPE_SPECIAL:
1.151 schwarze 303: if (skip)
304: skip = 0;
305: else
306: sz++;
307: break;
1.156 schwarze 308: case ESCAPE_SKIPCHAR:
1.151 schwarze 309: skip = 1;
1.138 kristaps 310: break;
311: default:
312: break;
313: }
314: }
1.151 schwarze 315: return(sz);
1.138 kristaps 316: }
1.88 kristaps 317:
1.85 kristaps 318: static int
1.159 schwarze 319: print_escape(char c)
320: {
321:
322: switch (c) {
323: case '<':
324: printf("<");
325: break;
326: case '>':
327: printf(">");
328: break;
329: case '&':
330: printf("&");
331: break;
332: case '"':
333: printf(""");
334: break;
335: case ASCII_NBRSP:
336: putchar('-');
337: break;
338: case ASCII_HYPH:
339: putchar('-');
340: /* FALLTHROUGH */
341: case ASCII_BREAK:
342: break;
343: default:
344: return(0);
345: }
346: return(1);
347: }
348:
349: static int
1.88 kristaps 350: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 351: {
1.77 kristaps 352: size_t sz;
1.141 kristaps 353: int c, len, nospace;
1.82 kristaps 354: const char *seq;
1.132 kristaps 355: enum mandoc_esc esc;
1.158 schwarze 356: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 357: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 358:
1.85 kristaps 359: nospace = 0;
360:
1.132 kristaps 361: while ('\0' != *p) {
1.151 schwarze 362: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
363: h->flags &= ~HTML_SKIPCHAR;
364: p++;
365: continue;
366: }
367:
1.100 kristaps 368: sz = strcspn(p, rejs);
1.77 kristaps 369:
370: fwrite(p, 1, sz, stdout);
1.132 kristaps 371: p += (int)sz;
1.77 kristaps 372:
1.132 kristaps 373: if ('\0' == *p)
374: break;
375:
1.159 schwarze 376: if (print_escape(*p++))
1.154 schwarze 377: continue;
1.77 kristaps 378:
1.132 kristaps 379: esc = mandoc_escape(&p, &seq, &len);
380: if (ESCAPE_ERROR == esc)
381: break;
1.82 kristaps 382:
1.132 kristaps 383: switch (esc) {
1.156 schwarze 384: case ESCAPE_FONT:
1.151 schwarze 385: /* FALLTHROUGH */
1.156 schwarze 386: case ESCAPE_FONTPREV:
1.151 schwarze 387: /* FALLTHROUGH */
1.156 schwarze 388: case ESCAPE_FONTBOLD:
1.151 schwarze 389: /* FALLTHROUGH */
1.156 schwarze 390: case ESCAPE_FONTITALIC:
1.151 schwarze 391: /* FALLTHROUGH */
1.156 schwarze 392: case ESCAPE_FONTBI:
1.152 schwarze 393: /* FALLTHROUGH */
1.156 schwarze 394: case ESCAPE_FONTROMAN:
1.151 schwarze 395: if (0 == norecurse)
396: print_metaf(h, esc);
397: continue;
1.156 schwarze 398: case ESCAPE_SKIPCHAR:
1.151 schwarze 399: h->flags |= HTML_SKIPCHAR;
400: continue;
401: default:
402: break;
403: }
404:
405: if (h->flags & HTML_SKIPCHAR) {
406: h->flags &= ~HTML_SKIPCHAR;
407: continue;
408: }
409:
410: switch (esc) {
1.156 schwarze 411: case ESCAPE_UNICODE:
1.159 schwarze 412: /* Skip past "u" header. */
1.144 kristaps 413: c = mchars_num2uc(seq + 1, len - 1);
414: if ('\0' != c)
415: printf("&#x%x;", c);
416: break;
1.156 schwarze 417: case ESCAPE_NUMBERED:
1.141 kristaps 418: c = mchars_num2char(seq, len);
1.159 schwarze 419: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 420: putchar(c);
1.82 kristaps 421: break;
1.156 schwarze 422: case ESCAPE_SPECIAL:
1.147 kristaps 423: c = mchars_spec2cp(h->symtab, seq, len);
424: if (c > 0)
425: printf("&#%d;", c);
1.159 schwarze 426: else if (-1 == c && 1 == len &&
427: !print_escape(*seq))
1.147 kristaps 428: putchar((int)*seq);
1.132 kristaps 429: break;
1.156 schwarze 430: case ESCAPE_NOSPACE:
1.132 kristaps 431: if ('\0' == *p)
432: nospace = 1;
1.88 kristaps 433: break;
1.82 kristaps 434: default:
435: break;
436: }
1.32 kristaps 437: }
1.85 kristaps 438:
439: return(nospace);
1.14 kristaps 440: }
441:
1.94 kristaps 442: static void
443: print_attr(struct html *h, const char *key, const char *val)
444: {
445: printf(" %s=\"", key);
446: (void)print_encode(h, val, 1);
447: putchar('\"');
448: }
449:
1.51 kristaps 450: struct tag *
1.156 schwarze 451: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 452: int sz, const struct htmlpair *p)
1.14 kristaps 453: {
1.29 kristaps 454: int i;
1.30 kristaps 455: struct tag *t;
456:
1.94 kristaps 457: /* Push this tags onto the stack of open scopes. */
458:
1.30 kristaps 459: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 460: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 461: t->tag = tag;
1.66 kristaps 462: t->next = h->tags.head;
463: h->tags.head = t;
1.30 kristaps 464: } else
465: t = NULL;
1.29 kristaps 466:
467: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 468: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
469: /* Manage keeps! */
470: if ( ! (HTML_KEEP & h->flags)) {
471: if (HTML_PREKEEP & h->flags)
472: h->flags |= HTML_KEEP;
473: putchar(' ');
474: } else
475: printf(" ");
476: }
1.29 kristaps 477:
1.109 kristaps 478: if ( ! (h->flags & HTML_NONOSPACE))
479: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 480: else
481: h->flags |= HTML_NOSPACE;
1.109 kristaps 482:
1.94 kristaps 483: /* Print out the tag name and attributes. */
484:
1.29 kristaps 485: printf("<%s", htmltags[tag].name);
1.94 kristaps 486: for (i = 0; i < sz; i++)
487: print_attr(h, htmlattrs[p[i].key], p[i].val);
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) {
1.156 schwarze 493: case HTML_XHTML_1_0_STRICT:
1.93 kristaps 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:
1.29 kristaps 510: static void
511: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 512: {
1.156 schwarze 513:
1.29 kristaps 514: printf("</%s>", htmltags[tag].name);
1.71 kristaps 515: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 516: h->flags |= HTML_NOSPACE;
1.78 kristaps 517: putchar('\n');
1.156 schwarze 518: }
1.14 kristaps 519: }
520:
1.51 kristaps 521: void
1.93 kristaps 522: print_gen_decls(struct html *h)
1.1 kristaps 523: {
1.93 kristaps 524:
1.164 ! kristaps 525: puts("<!DOCTYPE html>");
1.1 kristaps 526: }
527:
1.51 kristaps 528: void
1.104 kristaps 529: print_text(struct html *h, const char *word)
1.1 kristaps 530: {
531:
1.105 kristaps 532: if ( ! (HTML_NOSPACE & h->flags)) {
533: /* Manage keeps! */
534: if ( ! (HTML_KEEP & h->flags)) {
535: if (HTML_PREKEEP & h->flags)
536: h->flags |= HTML_KEEP;
537: putchar(' ');
538: } else
539: printf(" ");
540: }
1.30 kristaps 541:
1.122 kristaps 542: assert(NULL == h->metaf);
1.152 schwarze 543: switch (h->metac) {
1.156 schwarze 544: case HTMLFONT_ITALIC:
1.152 schwarze 545: h->metaf = print_otag(h, TAG_I, 0, NULL);
546: break;
1.156 schwarze 547: case HTMLFONT_BOLD:
1.152 schwarze 548: h->metaf = print_otag(h, TAG_B, 0, NULL);
549: break;
1.156 schwarze 550: case HTMLFONT_BI:
1.152 schwarze 551: h->metaf = print_otag(h, TAG_B, 0, NULL);
552: print_otag(h, TAG_I, 0, NULL);
553: break;
554: default:
555: break;
556: }
1.122 kristaps 557:
1.104 kristaps 558: assert(word);
1.149 kristaps 559: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 560: if ( ! (h->flags & HTML_NONOSPACE))
561: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 562: } else
563: h->flags |= HTML_NOSPACE;
1.122 kristaps 564:
565: if (h->metaf) {
566: print_tagq(h, h->metaf);
567: h->metaf = NULL;
568: }
1.113 schwarze 569:
570: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 571: }
1.30 kristaps 572:
1.51 kristaps 573: void
1.30 kristaps 574: print_tagq(struct html *h, const struct tag *until)
575: {
576: struct tag *tag;
577:
1.66 kristaps 578: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 579: /*
1.125 kristaps 580: * Remember to close out and nullify the current
581: * meta-font and table, if applicable.
582: */
1.89 kristaps 583: if (tag == h->metaf)
584: h->metaf = NULL;
1.125 kristaps 585: if (tag == h->tblt)
586: h->tblt = NULL;
1.30 kristaps 587: print_ctag(h, tag->tag);
1.66 kristaps 588: h->tags.head = tag->next;
1.30 kristaps 589: free(tag);
590: if (until && tag == until)
591: return;
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;
1.156 schwarze 603: /*
1.125 kristaps 604: * Remember to close out and nullify the current
605: * meta-font and table, if applicable.
606: */
1.89 kristaps 607: if (tag == h->metaf)
608: h->metaf = NULL;
1.125 kristaps 609: if (tag == h->tblt)
610: h->tblt = NULL;
1.30 kristaps 611: print_ctag(h, tag->tag);
1.66 kristaps 612: h->tags.head = tag->next;
1.30 kristaps 613: free(tag);
614: }
615: }
1.55 kristaps 616:
617: void
618: bufinit(struct html *h)
619: {
620:
621: h->buf[0] = '\0';
622: h->buflen = 0;
623: }
624:
625: void
1.58 kristaps 626: bufcat_style(struct html *h, const char *key, const char *val)
627: {
628:
629: bufcat(h, key);
1.141 kristaps 630: bufcat(h, ":");
1.58 kristaps 631: bufcat(h, val);
1.141 kristaps 632: bufcat(h, ";");
1.58 kristaps 633: }
634:
635: void
1.55 kristaps 636: bufcat(struct html *h, const char *p)
637: {
1.157 schwarze 638:
639: /*
640: * XXX This is broken and not easy to fix.
641: * When using the -Oincludes option, buffmt_includes()
642: * may pass in strings overrunning BUFSIZ, causing a crash.
643: */
1.55 kristaps 644:
1.141 kristaps 645: h->buflen = strlcat(h->buf, p, BUFSIZ);
646: assert(h->buflen < BUFSIZ);
1.55 kristaps 647: }
648:
649: void
1.141 kristaps 650: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 651: {
652: va_list ap;
653:
654: va_start(ap, fmt);
1.156 schwarze 655: (void)vsnprintf(h->buf + (int)h->buflen,
656: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 657: va_end(ap);
658: h->buflen = strlen(h->buf);
659: }
660:
1.141 kristaps 661: static void
1.55 kristaps 662: bufncat(struct html *h, const char *p, size_t sz)
663: {
664:
1.141 kristaps 665: assert(h->buflen + sz + 1 < BUFSIZ);
666: strncat(h->buf, p, sz);
1.55 kristaps 667: h->buflen += sz;
668: }
669:
670: void
671: buffmt_includes(struct html *h, const char *name)
672: {
673: const char *p, *pp;
674:
675: pp = h->base_includes;
1.156 schwarze 676:
1.143 kristaps 677: bufinit(h);
1.61 kristaps 678: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 679: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 680: switch (*(p + 1)) {
1.156 schwarze 681: case'I':
1.55 kristaps 682: bufcat(h, name);
683: break;
684: default:
685: bufncat(h, p, 2);
686: break;
687: }
688: pp = p + 2;
689: }
690: if (pp)
691: bufcat(h, pp);
692: }
693:
694: void
1.156 schwarze 695: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 696: {
697: const char *p, *pp;
698:
699: pp = h->base_man;
1.156 schwarze 700:
1.143 kristaps 701: bufinit(h);
1.61 kristaps 702: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 703: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 704: switch (*(p + 1)) {
1.156 schwarze 705: case 'S':
1.58 kristaps 706: bufcat(h, sec ? sec : "1");
1.55 kristaps 707: break;
1.156 schwarze 708: case 'N':
1.153 joerg 709: bufcat_fmt(h, "%s", name);
1.55 kristaps 710: break;
711: default:
712: bufncat(h, p, 2);
713: break;
714: }
715: pp = p + 2;
716: }
717: if (pp)
718: bufcat(h, pp);
719: }
1.58 kristaps 720:
721: void
722: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
723: {
1.62 kristaps 724: double v;
1.58 kristaps 725:
726: v = su->scale;
1.140 kristaps 727: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
728: v = 1.0;
1.162 kristaps 729: else if (SCALE_BU == su->unit)
730: v /= 24.0;
1.58 kristaps 731:
1.141 kristaps 732: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 733: }
1.68 kristaps 734:
735: void
1.142 kristaps 736: bufcat_id(struct html *h, const char *src)
1.68 kristaps 737: {
738:
739: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
740:
1.142 kristaps 741: while ('\0' != *src)
742: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 743: }
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