Annotation of mandoc/html.c, Revision 1.167
1.167 ! kristaps 1: /* $Id: html.c,v 1.166 2014/09/27 09:03:24 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: "align", /* ATTR_ALIGN */
1.125 kristaps 91: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 92: "charset", /* ATTR_CHARSET */
1.29 kristaps 93: };
1.10 kristaps 94:
1.140 kristaps 95: static const char *const roffscales[SCALE_MAX] = {
96: "cm", /* SCALE_CM */
97: "in", /* SCALE_IN */
98: "pc", /* SCALE_PC */
99: "pt", /* SCALE_PT */
100: "em", /* SCALE_EM */
101: "em", /* SCALE_MM */
102: "ex", /* SCALE_EN */
103: "ex", /* SCALE_BU */
104: "em", /* SCALE_VS */
105: "ex", /* SCALE_FS */
106: };
107:
1.141 kristaps 108: static void bufncat(struct html *, const char *, size_t);
109: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 110: static int print_escape(char);
1.141 kristaps 111: static int print_encode(struct html *, const char *, int);
112: static void print_metaf(struct html *, enum mandoc_esc);
113: static void print_attr(struct html *, const char *, const char *);
114: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 115:
1.156 schwarze 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)) {
1.156 schwarze 138: case 0:
1.43 kristaps 139: h->style = v;
140: break;
1.156 schwarze 141: case 1:
1.53 kristaps 142: h->base_man = v;
1.43 kristaps 143: break;
1.156 schwarze 144: case 2:
1.54 kristaps 145: h->base_includes = v;
1.150 kristaps 146: break;
1.156 schwarze 147: case 3:
1.150 kristaps 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: void *
165: xhtml_alloc(char *outopts)
166: {
167:
168: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
169: }
170:
1.29 kristaps 171: void
172: html_free(void *p)
173: {
1.30 kristaps 174: struct tag *tag;
175: struct html *h;
176:
177: h = (struct html *)p;
1.37 kristaps 178:
1.66 kristaps 179: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 180: h->tags.head = tag->next;
1.30 kristaps 181: free(tag);
182: }
1.156 schwarze 183:
1.36 kristaps 184: if (h->symtab)
1.133 kristaps 185: mchars_free(h->symtab);
1.53 kristaps 186:
1.30 kristaps 187: free(h);
1.10 kristaps 188: }
1.2 kristaps 189:
1.51 kristaps 190: void
1.29 kristaps 191: print_gen_head(struct html *h)
192: {
1.41 kristaps 193: struct htmlpair tag[4];
1.165 kristaps 194: struct tag *t;
1.41 kristaps 195:
1.164 kristaps 196: tag[0].key = ATTR_CHARSET;
197: tag[0].val = "utf-8";
198: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 199:
200: t = print_otag(h, TAG_STYLE, 0, NULL);
201: print_text(h, "table.head, table.foot { width: 100%; }\n");
202: print_tagq(h, t);
1.41 kristaps 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:
1.126 schwarze 217: static void
1.132 kristaps 218: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 219: {
1.90 kristaps 220: enum htmlfont font;
1.88 kristaps 221:
222: switch (deco) {
1.156 schwarze 223: case ESCAPE_FONTPREV:
1.90 kristaps 224: font = h->metal;
1.88 kristaps 225: break;
1.156 schwarze 226: case ESCAPE_FONTITALIC:
1.90 kristaps 227: font = HTMLFONT_ITALIC;
228: break;
1.156 schwarze 229: case ESCAPE_FONTBOLD:
1.90 kristaps 230: font = HTMLFONT_BOLD;
1.88 kristaps 231: break;
1.156 schwarze 232: case ESCAPE_FONTBI:
1.152 schwarze 233: font = HTMLFONT_BI;
234: break;
1.156 schwarze 235: case ESCAPE_FONT:
1.145 kristaps 236: /* FALLTHROUGH */
1.156 schwarze 237: case ESCAPE_FONTROMAN:
1.90 kristaps 238: font = HTMLFONT_NONE;
1.88 kristaps 239: break;
240: default:
241: abort();
242: /* NOTREACHED */
243: }
244:
1.122 kristaps 245: if (h->metaf) {
246: print_tagq(h, h->metaf);
247: h->metaf = NULL;
248: }
249:
250: h->metal = h->metac;
251: h->metac = font;
252:
1.152 schwarze 253: switch (font) {
1.156 schwarze 254: case HTMLFONT_ITALIC:
1.152 schwarze 255: h->metaf = print_otag(h, TAG_I, 0, NULL);
256: break;
1.156 schwarze 257: case HTMLFONT_BOLD:
1.152 schwarze 258: h->metaf = print_otag(h, TAG_B, 0, NULL);
259: break;
1.156 schwarze 260: case HTMLFONT_BI:
1.152 schwarze 261: h->metaf = print_otag(h, TAG_B, 0, NULL);
262: print_otag(h, TAG_I, 0, NULL);
263: break;
264: default:
265: break;
266: }
1.88 kristaps 267: }
268:
1.138 kristaps 269: int
270: html_strlen(const char *cp)
271: {
1.151 schwarze 272: size_t rsz;
273: int skip, sz;
1.138 kristaps 274:
275: /*
276: * Account for escaped sequences within string length
277: * calculations. This follows the logic in term_strlen() as we
278: * must calculate the width of produced strings.
279: * Assume that characters are always width of "1". This is
280: * hacky, but it gets the job done for approximation of widths.
281: */
282:
283: sz = 0;
1.151 schwarze 284: skip = 0;
285: while (1) {
286: rsz = strcspn(cp, "\\");
287: if (rsz) {
288: cp += rsz;
289: if (skip) {
290: skip = 0;
291: rsz--;
292: }
293: sz += rsz;
294: }
295: if ('\0' == *cp)
296: break;
297: cp++;
298: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 299: case ESCAPE_ERROR:
1.138 kristaps 300: return(sz);
1.156 schwarze 301: case ESCAPE_UNICODE:
1.144 kristaps 302: /* FALLTHROUGH */
1.156 schwarze 303: case ESCAPE_NUMBERED:
1.139 kristaps 304: /* FALLTHROUGH */
1.156 schwarze 305: case ESCAPE_SPECIAL:
1.151 schwarze 306: if (skip)
307: skip = 0;
308: else
309: sz++;
310: break;
1.156 schwarze 311: case ESCAPE_SKIPCHAR:
1.151 schwarze 312: skip = 1;
1.138 kristaps 313: break;
314: default:
315: break;
316: }
317: }
1.151 schwarze 318: return(sz);
1.138 kristaps 319: }
1.88 kristaps 320:
1.85 kristaps 321: static int
1.159 schwarze 322: print_escape(char c)
323: {
324:
325: switch (c) {
326: case '<':
327: printf("<");
328: break;
329: case '>':
330: printf(">");
331: break;
332: case '&':
333: printf("&");
334: break;
335: case '"':
336: printf(""");
337: break;
338: case ASCII_NBRSP:
339: putchar('-');
340: break;
341: case ASCII_HYPH:
342: putchar('-');
343: /* FALLTHROUGH */
344: case ASCII_BREAK:
345: break;
346: default:
347: return(0);
348: }
349: return(1);
350: }
351:
352: static int
1.88 kristaps 353: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 354: {
1.77 kristaps 355: size_t sz;
1.141 kristaps 356: int c, len, nospace;
1.82 kristaps 357: const char *seq;
1.132 kristaps 358: enum mandoc_esc esc;
1.158 schwarze 359: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 360: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 361:
1.85 kristaps 362: nospace = 0;
363:
1.132 kristaps 364: while ('\0' != *p) {
1.151 schwarze 365: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
366: h->flags &= ~HTML_SKIPCHAR;
367: p++;
368: continue;
369: }
370:
1.100 kristaps 371: sz = strcspn(p, rejs);
1.77 kristaps 372:
373: fwrite(p, 1, sz, stdout);
1.132 kristaps 374: p += (int)sz;
1.77 kristaps 375:
1.132 kristaps 376: if ('\0' == *p)
377: break;
378:
1.159 schwarze 379: if (print_escape(*p++))
1.154 schwarze 380: continue;
1.77 kristaps 381:
1.132 kristaps 382: esc = mandoc_escape(&p, &seq, &len);
383: if (ESCAPE_ERROR == esc)
384: break;
1.82 kristaps 385:
1.132 kristaps 386: switch (esc) {
1.156 schwarze 387: case ESCAPE_FONT:
1.151 schwarze 388: /* FALLTHROUGH */
1.156 schwarze 389: case ESCAPE_FONTPREV:
1.151 schwarze 390: /* FALLTHROUGH */
1.156 schwarze 391: case ESCAPE_FONTBOLD:
1.151 schwarze 392: /* FALLTHROUGH */
1.156 schwarze 393: case ESCAPE_FONTITALIC:
1.151 schwarze 394: /* FALLTHROUGH */
1.156 schwarze 395: case ESCAPE_FONTBI:
1.152 schwarze 396: /* FALLTHROUGH */
1.156 schwarze 397: case ESCAPE_FONTROMAN:
1.151 schwarze 398: if (0 == norecurse)
399: print_metaf(h, esc);
400: continue;
1.156 schwarze 401: case ESCAPE_SKIPCHAR:
1.151 schwarze 402: h->flags |= HTML_SKIPCHAR;
403: continue;
404: default:
405: break;
406: }
407:
408: if (h->flags & HTML_SKIPCHAR) {
409: h->flags &= ~HTML_SKIPCHAR;
410: continue;
411: }
412:
413: switch (esc) {
1.156 schwarze 414: case ESCAPE_UNICODE:
1.159 schwarze 415: /* Skip past "u" header. */
1.144 kristaps 416: c = mchars_num2uc(seq + 1, len - 1);
417: if ('\0' != c)
418: printf("&#x%x;", c);
419: break;
1.156 schwarze 420: case ESCAPE_NUMBERED:
1.141 kristaps 421: c = mchars_num2char(seq, len);
1.159 schwarze 422: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 423: putchar(c);
1.82 kristaps 424: break;
1.156 schwarze 425: case ESCAPE_SPECIAL:
1.147 kristaps 426: c = mchars_spec2cp(h->symtab, seq, len);
427: if (c > 0)
428: printf("&#%d;", c);
1.159 schwarze 429: else if (-1 == c && 1 == len &&
430: !print_escape(*seq))
1.147 kristaps 431: putchar((int)*seq);
1.132 kristaps 432: break;
1.156 schwarze 433: case ESCAPE_NOSPACE:
1.132 kristaps 434: if ('\0' == *p)
435: nospace = 1;
1.88 kristaps 436: break;
1.82 kristaps 437: default:
438: break;
439: }
1.32 kristaps 440: }
1.85 kristaps 441:
442: return(nospace);
1.14 kristaps 443: }
444:
1.94 kristaps 445: static void
446: print_attr(struct html *h, const char *key, const char *val)
447: {
448: printf(" %s=\"", key);
449: (void)print_encode(h, val, 1);
450: putchar('\"');
451: }
452:
1.51 kristaps 453: struct tag *
1.156 schwarze 454: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 455: int sz, const struct htmlpair *p)
1.14 kristaps 456: {
1.29 kristaps 457: int i;
1.30 kristaps 458: struct tag *t;
459:
1.94 kristaps 460: /* Push this tags onto the stack of open scopes. */
461:
1.30 kristaps 462: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 463: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 464: t->tag = tag;
1.66 kristaps 465: t->next = h->tags.head;
466: h->tags.head = t;
1.30 kristaps 467: } else
468: t = NULL;
1.29 kristaps 469:
470: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 471: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
472: /* Manage keeps! */
473: if ( ! (HTML_KEEP & h->flags)) {
474: if (HTML_PREKEEP & h->flags)
475: h->flags |= HTML_KEEP;
476: putchar(' ');
477: } else
478: printf(" ");
479: }
1.29 kristaps 480:
1.109 kristaps 481: if ( ! (h->flags & HTML_NONOSPACE))
482: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 483: else
484: h->flags |= HTML_NOSPACE;
1.109 kristaps 485:
1.94 kristaps 486: /* Print out the tag name and attributes. */
487:
1.29 kristaps 488: printf("<%s", htmltags[tag].name);
1.94 kristaps 489: for (i = 0; i < sz; i++)
490: print_attr(h, htmlattrs[p[i].key], p[i].val);
491:
1.134 kristaps 492: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 493:
1.93 kristaps 494: if (HTML_AUTOCLOSE & htmltags[tag].flags)
495: switch (h->type) {
1.156 schwarze 496: case HTML_XHTML_1_0_STRICT:
1.93 kristaps 497: putchar('/');
498: break;
499: default:
500: break;
501: }
502:
1.78 kristaps 503: putchar('>');
1.14 kristaps 504:
1.29 kristaps 505: h->flags |= HTML_NOSPACE;
1.117 kristaps 506:
507: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
508: putchar('\n');
509:
1.30 kristaps 510: return(t);
1.14 kristaps 511: }
512:
1.29 kristaps 513: static void
514: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 515: {
1.156 schwarze 516:
1.29 kristaps 517: printf("</%s>", htmltags[tag].name);
1.71 kristaps 518: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 519: h->flags |= HTML_NOSPACE;
1.78 kristaps 520: putchar('\n');
1.156 schwarze 521: }
1.14 kristaps 522: }
523:
1.51 kristaps 524: void
1.93 kristaps 525: print_gen_decls(struct html *h)
1.1 kristaps 526: {
1.93 kristaps 527:
1.164 kristaps 528: puts("<!DOCTYPE html>");
1.1 kristaps 529: }
530:
1.51 kristaps 531: void
1.104 kristaps 532: print_text(struct html *h, const char *word)
1.1 kristaps 533: {
534:
1.105 kristaps 535: if ( ! (HTML_NOSPACE & h->flags)) {
536: /* Manage keeps! */
537: if ( ! (HTML_KEEP & h->flags)) {
538: if (HTML_PREKEEP & h->flags)
539: h->flags |= HTML_KEEP;
540: putchar(' ');
541: } else
542: printf(" ");
543: }
1.30 kristaps 544:
1.122 kristaps 545: assert(NULL == h->metaf);
1.152 schwarze 546: switch (h->metac) {
1.156 schwarze 547: case HTMLFONT_ITALIC:
1.152 schwarze 548: h->metaf = print_otag(h, TAG_I, 0, NULL);
549: break;
1.156 schwarze 550: case HTMLFONT_BOLD:
1.152 schwarze 551: h->metaf = print_otag(h, TAG_B, 0, NULL);
552: break;
1.156 schwarze 553: case HTMLFONT_BI:
1.152 schwarze 554: h->metaf = print_otag(h, TAG_B, 0, NULL);
555: print_otag(h, TAG_I, 0, NULL);
556: break;
557: default:
558: break;
559: }
1.122 kristaps 560:
1.104 kristaps 561: assert(word);
1.149 kristaps 562: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 563: if ( ! (h->flags & HTML_NONOSPACE))
564: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 565: } else
566: h->flags |= HTML_NOSPACE;
1.122 kristaps 567:
568: if (h->metaf) {
569: print_tagq(h, h->metaf);
570: h->metaf = NULL;
571: }
1.113 schwarze 572:
573: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 574: }
1.30 kristaps 575:
1.51 kristaps 576: void
1.30 kristaps 577: print_tagq(struct html *h, const struct tag *until)
578: {
579: struct tag *tag;
580:
1.66 kristaps 581: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 582: /*
1.125 kristaps 583: * Remember to close out and nullify the current
584: * meta-font and table, if applicable.
585: */
1.89 kristaps 586: if (tag == h->metaf)
587: h->metaf = NULL;
1.125 kristaps 588: if (tag == h->tblt)
589: h->tblt = NULL;
1.30 kristaps 590: print_ctag(h, tag->tag);
1.66 kristaps 591: h->tags.head = tag->next;
1.30 kristaps 592: free(tag);
593: if (until && tag == until)
594: return;
595: }
596: }
597:
1.51 kristaps 598: void
1.30 kristaps 599: print_stagq(struct html *h, const struct tag *suntil)
600: {
601: struct tag *tag;
602:
1.66 kristaps 603: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 604: if (suntil && tag == suntil)
605: return;
1.156 schwarze 606: /*
1.125 kristaps 607: * Remember to close out and nullify the current
608: * meta-font and table, if applicable.
609: */
1.89 kristaps 610: if (tag == h->metaf)
611: h->metaf = NULL;
1.125 kristaps 612: if (tag == h->tblt)
613: h->tblt = NULL;
1.30 kristaps 614: print_ctag(h, tag->tag);
1.66 kristaps 615: h->tags.head = tag->next;
1.30 kristaps 616: free(tag);
617: }
618: }
1.55 kristaps 619:
620: void
621: bufinit(struct html *h)
622: {
623:
624: h->buf[0] = '\0';
625: h->buflen = 0;
626: }
627:
628: void
1.58 kristaps 629: bufcat_style(struct html *h, const char *key, const char *val)
630: {
631:
632: bufcat(h, key);
1.141 kristaps 633: bufcat(h, ":");
1.58 kristaps 634: bufcat(h, val);
1.141 kristaps 635: bufcat(h, ";");
1.58 kristaps 636: }
637:
638: void
1.55 kristaps 639: bufcat(struct html *h, const char *p)
640: {
1.157 schwarze 641:
642: /*
643: * XXX This is broken and not easy to fix.
644: * When using the -Oincludes option, buffmt_includes()
645: * may pass in strings overrunning BUFSIZ, causing a crash.
646: */
1.55 kristaps 647:
1.141 kristaps 648: h->buflen = strlcat(h->buf, p, BUFSIZ);
649: assert(h->buflen < BUFSIZ);
1.55 kristaps 650: }
651:
652: void
1.141 kristaps 653: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 654: {
655: va_list ap;
656:
657: va_start(ap, fmt);
1.156 schwarze 658: (void)vsnprintf(h->buf + (int)h->buflen,
659: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 660: va_end(ap);
661: h->buflen = strlen(h->buf);
662: }
663:
1.141 kristaps 664: static void
1.55 kristaps 665: bufncat(struct html *h, const char *p, size_t sz)
666: {
667:
1.141 kristaps 668: assert(h->buflen + sz + 1 < BUFSIZ);
669: strncat(h->buf, p, sz);
1.55 kristaps 670: h->buflen += sz;
671: }
672:
673: void
674: buffmt_includes(struct html *h, const char *name)
675: {
676: const char *p, *pp;
677:
678: pp = h->base_includes;
1.156 schwarze 679:
1.143 kristaps 680: bufinit(h);
1.61 kristaps 681: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 682: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 683: switch (*(p + 1)) {
1.156 schwarze 684: case'I':
1.55 kristaps 685: bufcat(h, name);
686: break;
687: default:
688: bufncat(h, p, 2);
689: break;
690: }
691: pp = p + 2;
692: }
693: if (pp)
694: bufcat(h, pp);
695: }
696:
697: void
1.156 schwarze 698: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 699: {
700: const char *p, *pp;
701:
702: pp = h->base_man;
1.156 schwarze 703:
1.143 kristaps 704: bufinit(h);
1.61 kristaps 705: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 706: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 707: switch (*(p + 1)) {
1.156 schwarze 708: case 'S':
1.58 kristaps 709: bufcat(h, sec ? sec : "1");
1.55 kristaps 710: break;
1.156 schwarze 711: case 'N':
1.153 joerg 712: bufcat_fmt(h, "%s", name);
1.55 kristaps 713: break;
714: default:
715: bufncat(h, p, 2);
716: break;
717: }
718: pp = p + 2;
719: }
720: if (pp)
721: bufcat(h, pp);
722: }
1.58 kristaps 723:
724: void
725: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
726: {
1.62 kristaps 727: double v;
1.58 kristaps 728:
729: v = su->scale;
1.140 kristaps 730: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
731: v = 1.0;
1.162 kristaps 732: else if (SCALE_BU == su->unit)
733: v /= 24.0;
1.58 kristaps 734:
1.141 kristaps 735: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 736: }
1.68 kristaps 737:
738: void
1.142 kristaps 739: bufcat_id(struct html *h, const char *src)
1.68 kristaps 740: {
741:
742: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
743:
1.142 kristaps 744: while ('\0' != *src)
745: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 746: }
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