Annotation of mandoc/html.c, Revision 1.166
1.166 ! kristaps 1: /* $Id: html.c,v 1.165 2014/09/27 09:02:19 kristaps 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 */
1.165 kristaps 77: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.90 kristaps 78: };
79:
1.82 kristaps 80: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 81: "name", /* ATTR_NAME */
82: "rel", /* ATTR_REL */
83: "href", /* ATTR_HREF */
84: "type", /* ATTR_TYPE */
85: "media", /* ATTR_MEDIA */
86: "class", /* ATTR_CLASS */
87: "style", /* ATTR_STYLE */
88: "width", /* ATTR_WIDTH */
89: "id", /* ATTR_ID */
90: "summary", /* ATTR_SUMMARY */
91: "align", /* ATTR_ALIGN */
1.125 kristaps 92: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 93: "charset", /* ATTR_CHARSET */
1.29 kristaps 94: };
1.10 kristaps 95:
1.140 kristaps 96: static const char *const roffscales[SCALE_MAX] = {
97: "cm", /* SCALE_CM */
98: "in", /* SCALE_IN */
99: "pc", /* SCALE_PC */
100: "pt", /* SCALE_PT */
101: "em", /* SCALE_EM */
102: "em", /* SCALE_MM */
103: "ex", /* SCALE_EN */
104: "ex", /* SCALE_BU */
105: "em", /* SCALE_VS */
106: "ex", /* SCALE_FS */
107: };
108:
1.141 kristaps 109: static void bufncat(struct html *, const char *, size_t);
110: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 111: static int print_escape(char);
1.141 kristaps 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:
1.156 schwarze 117:
1.93 kristaps 118: static void *
119: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 120: {
1.30 kristaps 121: struct html *h;
1.150 kristaps 122: const char *toks[5];
1.63 kristaps 123: char *v;
1.43 kristaps 124:
125: toks[0] = "style";
1.53 kristaps 126: toks[1] = "man";
1.54 kristaps 127: toks[2] = "includes";
1.150 kristaps 128: toks[3] = "fragment";
129: toks[4] = NULL;
1.30 kristaps 130:
1.128 kristaps 131: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 132:
1.93 kristaps 133: h->type = type;
1.66 kristaps 134: h->tags.head = NULL;
1.136 kristaps 135: h->symtab = mchars_alloc();
1.41 kristaps 136:
1.47 kristaps 137: while (outopts && *outopts)
1.63 kristaps 138: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 139: case 0:
1.43 kristaps 140: h->style = v;
141: break;
1.156 schwarze 142: case 1:
1.53 kristaps 143: h->base_man = v;
1.43 kristaps 144: break;
1.156 schwarze 145: case 2:
1.54 kristaps 146: h->base_includes = v;
1.150 kristaps 147: break;
1.156 schwarze 148: case 3:
1.150 kristaps 149: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 150: break;
1.43 kristaps 151: default:
152: break;
153: }
154:
1.30 kristaps 155: return(h);
1.29 kristaps 156: }
1.10 kristaps 157:
1.93 kristaps 158: void *
159: html_alloc(char *outopts)
160: {
161:
162: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
163: }
164:
165: void *
166: xhtml_alloc(char *outopts)
167: {
168:
169: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
170: }
171:
1.29 kristaps 172: void
173: html_free(void *p)
174: {
1.30 kristaps 175: struct tag *tag;
176: struct html *h;
177:
178: h = (struct html *)p;
1.37 kristaps 179:
1.66 kristaps 180: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 181: h->tags.head = tag->next;
1.30 kristaps 182: free(tag);
183: }
1.156 schwarze 184:
1.36 kristaps 185: if (h->symtab)
1.133 kristaps 186: mchars_free(h->symtab);
1.53 kristaps 187:
1.30 kristaps 188: free(h);
1.10 kristaps 189: }
1.2 kristaps 190:
1.51 kristaps 191: void
1.29 kristaps 192: print_gen_head(struct html *h)
193: {
1.41 kristaps 194: struct htmlpair tag[4];
1.165 kristaps 195: struct tag *t;
1.41 kristaps 196:
1.164 kristaps 197: tag[0].key = ATTR_CHARSET;
198: tag[0].val = "utf-8";
199: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 200:
201: t = print_otag(h, TAG_STYLE, 0, NULL);
202: print_text(h, "table.head, table.foot { width: 100%; }\n");
203: print_tagq(h, t);
1.41 kristaps 204:
205: if (h->style) {
206: tag[0].key = ATTR_REL;
207: tag[0].val = "stylesheet";
208: tag[1].key = ATTR_HREF;
209: tag[1].val = h->style;
210: tag[2].key = ATTR_TYPE;
211: tag[2].val = "text/css";
212: tag[3].key = ATTR_MEDIA;
213: tag[3].val = "all";
214: print_otag(h, TAG_LINK, 4, tag);
215: }
1.4 kristaps 216: }
217:
1.126 schwarze 218: static void
1.132 kristaps 219: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 220: {
1.90 kristaps 221: enum htmlfont font;
1.88 kristaps 222:
223: switch (deco) {
1.156 schwarze 224: case ESCAPE_FONTPREV:
1.90 kristaps 225: font = h->metal;
1.88 kristaps 226: break;
1.156 schwarze 227: case ESCAPE_FONTITALIC:
1.90 kristaps 228: font = HTMLFONT_ITALIC;
229: break;
1.156 schwarze 230: case ESCAPE_FONTBOLD:
1.90 kristaps 231: font = HTMLFONT_BOLD;
1.88 kristaps 232: break;
1.156 schwarze 233: case ESCAPE_FONTBI:
1.152 schwarze 234: font = HTMLFONT_BI;
235: break;
1.156 schwarze 236: case ESCAPE_FONT:
1.145 kristaps 237: /* FALLTHROUGH */
1.156 schwarze 238: case ESCAPE_FONTROMAN:
1.90 kristaps 239: font = HTMLFONT_NONE;
1.88 kristaps 240: break;
241: default:
242: abort();
243: /* NOTREACHED */
244: }
245:
1.122 kristaps 246: if (h->metaf) {
247: print_tagq(h, h->metaf);
248: h->metaf = NULL;
249: }
250:
251: h->metal = h->metac;
252: h->metac = font;
253:
1.152 schwarze 254: switch (font) {
1.156 schwarze 255: case HTMLFONT_ITALIC:
1.152 schwarze 256: h->metaf = print_otag(h, TAG_I, 0, NULL);
257: break;
1.156 schwarze 258: case HTMLFONT_BOLD:
1.152 schwarze 259: h->metaf = print_otag(h, TAG_B, 0, NULL);
260: break;
1.156 schwarze 261: case HTMLFONT_BI:
1.152 schwarze 262: h->metaf = print_otag(h, TAG_B, 0, NULL);
263: print_otag(h, TAG_I, 0, NULL);
264: break;
265: default:
266: break;
267: }
1.88 kristaps 268: }
269:
1.138 kristaps 270: int
271: html_strlen(const char *cp)
272: {
1.151 schwarze 273: size_t rsz;
274: int skip, sz;
1.138 kristaps 275:
276: /*
277: * Account for escaped sequences within string length
278: * calculations. This follows the logic in term_strlen() as we
279: * must calculate the width of produced strings.
280: * Assume that characters are always width of "1". This is
281: * hacky, but it gets the job done for approximation of widths.
282: */
283:
284: sz = 0;
1.151 schwarze 285: skip = 0;
286: while (1) {
287: rsz = strcspn(cp, "\\");
288: if (rsz) {
289: cp += rsz;
290: if (skip) {
291: skip = 0;
292: rsz--;
293: }
294: sz += rsz;
295: }
296: if ('\0' == *cp)
297: break;
298: cp++;
299: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 300: case ESCAPE_ERROR:
1.138 kristaps 301: return(sz);
1.156 schwarze 302: case ESCAPE_UNICODE:
1.144 kristaps 303: /* FALLTHROUGH */
1.156 schwarze 304: case ESCAPE_NUMBERED:
1.139 kristaps 305: /* FALLTHROUGH */
1.156 schwarze 306: case ESCAPE_SPECIAL:
1.151 schwarze 307: if (skip)
308: skip = 0;
309: else
310: sz++;
311: break;
1.156 schwarze 312: case ESCAPE_SKIPCHAR:
1.151 schwarze 313: skip = 1;
1.138 kristaps 314: break;
315: default:
316: break;
317: }
318: }
1.151 schwarze 319: return(sz);
1.138 kristaps 320: }
1.88 kristaps 321:
1.85 kristaps 322: static int
1.159 schwarze 323: print_escape(char c)
324: {
325:
326: switch (c) {
327: case '<':
328: printf("<");
329: break;
330: case '>':
331: printf(">");
332: break;
333: case '&':
334: printf("&");
335: break;
336: case '"':
337: printf(""");
338: break;
339: case ASCII_NBRSP:
340: putchar('-');
341: break;
342: case ASCII_HYPH:
343: putchar('-');
344: /* FALLTHROUGH */
345: case ASCII_BREAK:
346: break;
347: default:
348: return(0);
349: }
350: return(1);
351: }
352:
353: static int
1.88 kristaps 354: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 355: {
1.77 kristaps 356: size_t sz;
1.141 kristaps 357: int c, len, nospace;
1.82 kristaps 358: const char *seq;
1.132 kristaps 359: enum mandoc_esc esc;
1.158 schwarze 360: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 361: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 362:
1.85 kristaps 363: nospace = 0;
364:
1.132 kristaps 365: while ('\0' != *p) {
1.151 schwarze 366: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
367: h->flags &= ~HTML_SKIPCHAR;
368: p++;
369: continue;
370: }
371:
1.100 kristaps 372: sz = strcspn(p, rejs);
1.77 kristaps 373:
374: fwrite(p, 1, sz, stdout);
1.132 kristaps 375: p += (int)sz;
1.77 kristaps 376:
1.132 kristaps 377: if ('\0' == *p)
378: break;
379:
1.159 schwarze 380: if (print_escape(*p++))
1.154 schwarze 381: continue;
1.77 kristaps 382:
1.132 kristaps 383: esc = mandoc_escape(&p, &seq, &len);
384: if (ESCAPE_ERROR == esc)
385: break;
1.82 kristaps 386:
1.132 kristaps 387: switch (esc) {
1.156 schwarze 388: case ESCAPE_FONT:
1.151 schwarze 389: /* FALLTHROUGH */
1.156 schwarze 390: case ESCAPE_FONTPREV:
1.151 schwarze 391: /* FALLTHROUGH */
1.156 schwarze 392: case ESCAPE_FONTBOLD:
1.151 schwarze 393: /* FALLTHROUGH */
1.156 schwarze 394: case ESCAPE_FONTITALIC:
1.151 schwarze 395: /* FALLTHROUGH */
1.156 schwarze 396: case ESCAPE_FONTBI:
1.152 schwarze 397: /* FALLTHROUGH */
1.156 schwarze 398: case ESCAPE_FONTROMAN:
1.151 schwarze 399: if (0 == norecurse)
400: print_metaf(h, esc);
401: continue;
1.156 schwarze 402: case ESCAPE_SKIPCHAR:
1.151 schwarze 403: h->flags |= HTML_SKIPCHAR;
404: continue;
405: default:
406: break;
407: }
408:
409: if (h->flags & HTML_SKIPCHAR) {
410: h->flags &= ~HTML_SKIPCHAR;
411: continue;
412: }
413:
414: switch (esc) {
1.156 schwarze 415: case ESCAPE_UNICODE:
1.159 schwarze 416: /* Skip past "u" header. */
1.144 kristaps 417: c = mchars_num2uc(seq + 1, len - 1);
418: if ('\0' != c)
419: printf("&#x%x;", c);
420: break;
1.156 schwarze 421: case ESCAPE_NUMBERED:
1.141 kristaps 422: c = mchars_num2char(seq, len);
1.159 schwarze 423: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 424: putchar(c);
1.82 kristaps 425: break;
1.156 schwarze 426: case ESCAPE_SPECIAL:
1.147 kristaps 427: c = mchars_spec2cp(h->symtab, seq, len);
428: if (c > 0)
429: printf("&#%d;", c);
1.159 schwarze 430: else if (-1 == c && 1 == len &&
431: !print_escape(*seq))
1.147 kristaps 432: putchar((int)*seq);
1.132 kristaps 433: break;
1.156 schwarze 434: case ESCAPE_NOSPACE:
1.132 kristaps 435: if ('\0' == *p)
436: nospace = 1;
1.88 kristaps 437: break;
1.82 kristaps 438: default:
439: break;
440: }
1.32 kristaps 441: }
1.85 kristaps 442:
443: return(nospace);
1.14 kristaps 444: }
445:
1.94 kristaps 446: static void
447: print_attr(struct html *h, const char *key, const char *val)
448: {
449: printf(" %s=\"", key);
450: (void)print_encode(h, val, 1);
451: putchar('\"');
452: }
453:
1.51 kristaps 454: struct tag *
1.156 schwarze 455: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 456: int sz, const struct htmlpair *p)
1.14 kristaps 457: {
1.29 kristaps 458: int i;
1.30 kristaps 459: struct tag *t;
460:
1.94 kristaps 461: /* Push this tags onto the stack of open scopes. */
462:
1.30 kristaps 463: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 464: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 465: t->tag = tag;
1.66 kristaps 466: t->next = h->tags.head;
467: h->tags.head = t;
1.30 kristaps 468: } else
469: t = NULL;
1.29 kristaps 470:
471: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 472: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
473: /* Manage keeps! */
474: if ( ! (HTML_KEEP & h->flags)) {
475: if (HTML_PREKEEP & h->flags)
476: h->flags |= HTML_KEEP;
477: putchar(' ');
478: } else
479: printf(" ");
480: }
1.29 kristaps 481:
1.109 kristaps 482: if ( ! (h->flags & HTML_NONOSPACE))
483: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 484: else
485: h->flags |= HTML_NOSPACE;
1.109 kristaps 486:
1.94 kristaps 487: /* Print out the tag name and attributes. */
488:
1.29 kristaps 489: printf("<%s", htmltags[tag].name);
1.94 kristaps 490: for (i = 0; i < sz; i++)
491: print_attr(h, htmlattrs[p[i].key], p[i].val);
492:
1.134 kristaps 493: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 494:
1.93 kristaps 495: if (HTML_AUTOCLOSE & htmltags[tag].flags)
496: switch (h->type) {
1.156 schwarze 497: case HTML_XHTML_1_0_STRICT:
1.93 kristaps 498: putchar('/');
499: break;
500: default:
501: break;
502: }
503:
1.78 kristaps 504: putchar('>');
1.14 kristaps 505:
1.29 kristaps 506: h->flags |= HTML_NOSPACE;
1.117 kristaps 507:
508: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
509: putchar('\n');
510:
1.30 kristaps 511: return(t);
1.14 kristaps 512: }
513:
1.29 kristaps 514: static void
515: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 516: {
1.156 schwarze 517:
1.29 kristaps 518: printf("</%s>", htmltags[tag].name);
1.71 kristaps 519: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 520: h->flags |= HTML_NOSPACE;
1.78 kristaps 521: putchar('\n');
1.156 schwarze 522: }
1.14 kristaps 523: }
524:
1.51 kristaps 525: void
1.93 kristaps 526: print_gen_decls(struct html *h)
1.1 kristaps 527: {
1.93 kristaps 528:
1.164 kristaps 529: puts("<!DOCTYPE html>");
1.1 kristaps 530: }
531:
1.51 kristaps 532: void
1.104 kristaps 533: print_text(struct html *h, const char *word)
1.1 kristaps 534: {
535:
1.105 kristaps 536: if ( ! (HTML_NOSPACE & h->flags)) {
537: /* Manage keeps! */
538: if ( ! (HTML_KEEP & h->flags)) {
539: if (HTML_PREKEEP & h->flags)
540: h->flags |= HTML_KEEP;
541: putchar(' ');
542: } else
543: printf(" ");
544: }
1.30 kristaps 545:
1.122 kristaps 546: assert(NULL == h->metaf);
1.152 schwarze 547: switch (h->metac) {
1.156 schwarze 548: case HTMLFONT_ITALIC:
1.152 schwarze 549: h->metaf = print_otag(h, TAG_I, 0, NULL);
550: break;
1.156 schwarze 551: case HTMLFONT_BOLD:
1.152 schwarze 552: h->metaf = print_otag(h, TAG_B, 0, NULL);
553: break;
1.156 schwarze 554: case HTMLFONT_BI:
1.152 schwarze 555: h->metaf = print_otag(h, TAG_B, 0, NULL);
556: print_otag(h, TAG_I, 0, NULL);
557: break;
558: default:
559: break;
560: }
1.122 kristaps 561:
1.104 kristaps 562: assert(word);
1.149 kristaps 563: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 564: if ( ! (h->flags & HTML_NONOSPACE))
565: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 566: } else
567: h->flags |= HTML_NOSPACE;
1.122 kristaps 568:
569: if (h->metaf) {
570: print_tagq(h, h->metaf);
571: h->metaf = NULL;
572: }
1.113 schwarze 573:
574: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 575: }
1.30 kristaps 576:
1.51 kristaps 577: void
1.30 kristaps 578: print_tagq(struct html *h, const struct tag *until)
579: {
580: struct tag *tag;
581:
1.66 kristaps 582: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 583: /*
1.125 kristaps 584: * Remember to close out and nullify the current
585: * meta-font and table, if applicable.
586: */
1.89 kristaps 587: if (tag == h->metaf)
588: h->metaf = NULL;
1.125 kristaps 589: if (tag == h->tblt)
590: h->tblt = NULL;
1.30 kristaps 591: print_ctag(h, tag->tag);
1.66 kristaps 592: h->tags.head = tag->next;
1.30 kristaps 593: free(tag);
594: if (until && tag == until)
595: return;
596: }
597: }
598:
1.51 kristaps 599: void
1.30 kristaps 600: print_stagq(struct html *h, const struct tag *suntil)
601: {
602: struct tag *tag;
603:
1.66 kristaps 604: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 605: if (suntil && tag == suntil)
606: return;
1.156 schwarze 607: /*
1.125 kristaps 608: * Remember to close out and nullify the current
609: * meta-font and table, if applicable.
610: */
1.89 kristaps 611: if (tag == h->metaf)
612: h->metaf = NULL;
1.125 kristaps 613: if (tag == h->tblt)
614: h->tblt = NULL;
1.30 kristaps 615: print_ctag(h, tag->tag);
1.66 kristaps 616: h->tags.head = tag->next;
1.30 kristaps 617: free(tag);
618: }
619: }
1.55 kristaps 620:
621: void
622: bufinit(struct html *h)
623: {
624:
625: h->buf[0] = '\0';
626: h->buflen = 0;
627: }
628:
629: void
1.58 kristaps 630: bufcat_style(struct html *h, const char *key, const char *val)
631: {
632:
633: bufcat(h, key);
1.141 kristaps 634: bufcat(h, ":");
1.58 kristaps 635: bufcat(h, val);
1.141 kristaps 636: bufcat(h, ";");
1.58 kristaps 637: }
638:
639: void
1.55 kristaps 640: bufcat(struct html *h, const char *p)
641: {
1.157 schwarze 642:
643: /*
644: * XXX This is broken and not easy to fix.
645: * When using the -Oincludes option, buffmt_includes()
646: * may pass in strings overrunning BUFSIZ, causing a crash.
647: */
1.55 kristaps 648:
1.141 kristaps 649: h->buflen = strlcat(h->buf, p, BUFSIZ);
650: assert(h->buflen < BUFSIZ);
1.55 kristaps 651: }
652:
653: void
1.141 kristaps 654: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 655: {
656: va_list ap;
657:
658: va_start(ap, fmt);
1.156 schwarze 659: (void)vsnprintf(h->buf + (int)h->buflen,
660: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 661: va_end(ap);
662: h->buflen = strlen(h->buf);
663: }
664:
1.141 kristaps 665: static void
1.55 kristaps 666: bufncat(struct html *h, const char *p, size_t sz)
667: {
668:
1.141 kristaps 669: assert(h->buflen + sz + 1 < BUFSIZ);
670: strncat(h->buf, p, sz);
1.55 kristaps 671: h->buflen += sz;
672: }
673:
674: void
675: buffmt_includes(struct html *h, const char *name)
676: {
677: const char *p, *pp;
678:
679: pp = h->base_includes;
1.156 schwarze 680:
1.143 kristaps 681: bufinit(h);
1.61 kristaps 682: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 683: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 684: switch (*(p + 1)) {
1.156 schwarze 685: case'I':
1.55 kristaps 686: bufcat(h, name);
687: break;
688: default:
689: bufncat(h, p, 2);
690: break;
691: }
692: pp = p + 2;
693: }
694: if (pp)
695: bufcat(h, pp);
696: }
697:
698: void
1.156 schwarze 699: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 700: {
701: const char *p, *pp;
702:
703: pp = h->base_man;
1.156 schwarze 704:
1.143 kristaps 705: bufinit(h);
1.61 kristaps 706: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 707: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 708: switch (*(p + 1)) {
1.156 schwarze 709: case 'S':
1.58 kristaps 710: bufcat(h, sec ? sec : "1");
1.55 kristaps 711: break;
1.156 schwarze 712: case 'N':
1.153 joerg 713: bufcat_fmt(h, "%s", name);
1.55 kristaps 714: break;
715: default:
716: bufncat(h, p, 2);
717: break;
718: }
719: pp = p + 2;
720: }
721: if (pp)
722: bufcat(h, pp);
723: }
1.58 kristaps 724:
725: void
726: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
727: {
1.62 kristaps 728: double v;
1.58 kristaps 729:
730: v = su->scale;
1.140 kristaps 731: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
732: v = 1.0;
1.162 kristaps 733: else if (SCALE_BU == su->unit)
734: v /= 24.0;
1.58 kristaps 735:
1.141 kristaps 736: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 737: }
1.68 kristaps 738:
739: void
1.142 kristaps 740: bufcat_id(struct html *h, const char *src)
1.68 kristaps 741: {
742:
743: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
744:
1.142 kristaps 745: while ('\0' != *src)
746: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 747: }
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