Annotation of mandoc/html.c, Revision 1.172
1.172 ! kristaps 1: /* $Id: html.c,v 1.171 2014/09/27 10:56:18 kristaps Exp $ */
1.1 kristaps 2: /*
1.172 ! kristaps 3: * Copyright (c) 2008, 2009, 2010, 2011, 2014 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 */
1.118 kristaps 71: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 72: {"b", 0 }, /* TAG_B */
1.120 kristaps 73: {"i", 0 }, /* TAG_I */
1.121 kristaps 74: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 75: {"small", 0 }, /* TAG_SMALL */
1.165 kristaps 76: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.90 kristaps 77: };
78:
1.82 kristaps 79: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 80: "name", /* ATTR_NAME */
81: "rel", /* ATTR_REL */
82: "href", /* ATTR_HREF */
83: "type", /* ATTR_TYPE */
84: "media", /* ATTR_MEDIA */
85: "class", /* ATTR_CLASS */
86: "style", /* ATTR_STYLE */
87: "id", /* ATTR_ID */
1.125 kristaps 88: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 89: "charset", /* ATTR_CHARSET */
1.29 kristaps 90: };
1.10 kristaps 91:
1.140 kristaps 92: static const char *const roffscales[SCALE_MAX] = {
93: "cm", /* SCALE_CM */
94: "in", /* SCALE_IN */
95: "pc", /* SCALE_PC */
96: "pt", /* SCALE_PT */
97: "em", /* SCALE_EM */
98: "em", /* SCALE_MM */
99: "ex", /* SCALE_EN */
100: "ex", /* SCALE_BU */
101: "em", /* SCALE_VS */
102: "ex", /* SCALE_FS */
103: };
104:
1.141 kristaps 105: static void bufncat(struct html *, const char *, size_t);
106: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 107: static int print_escape(char);
1.141 kristaps 108: static int print_encode(struct html *, const char *, int);
109: static void print_metaf(struct html *, enum mandoc_esc);
110: static void print_attr(struct html *, const char *, const char *);
1.172 ! kristaps 111: static void *ml_alloc(char *);
1.82 kristaps 112:
1.156 schwarze 113:
1.93 kristaps 114: static void *
1.172 ! kristaps 115: ml_alloc(char *outopts)
1.10 kristaps 116: {
1.30 kristaps 117: struct html *h;
1.150 kristaps 118: const char *toks[5];
1.63 kristaps 119: char *v;
1.43 kristaps 120:
121: toks[0] = "style";
1.53 kristaps 122: toks[1] = "man";
1.54 kristaps 123: toks[2] = "includes";
1.150 kristaps 124: toks[3] = "fragment";
125: toks[4] = NULL;
1.30 kristaps 126:
1.128 kristaps 127: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 128:
1.66 kristaps 129: h->tags.head = NULL;
1.136 kristaps 130: h->symtab = mchars_alloc();
1.41 kristaps 131:
1.47 kristaps 132: while (outopts && *outopts)
1.63 kristaps 133: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 134: case 0:
1.43 kristaps 135: h->style = v;
136: break;
1.156 schwarze 137: case 1:
1.53 kristaps 138: h->base_man = v;
1.43 kristaps 139: break;
1.156 schwarze 140: case 2:
1.54 kristaps 141: h->base_includes = v;
1.150 kristaps 142: break;
1.156 schwarze 143: case 3:
1.150 kristaps 144: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 145: break;
1.43 kristaps 146: default:
147: break;
148: }
149:
1.30 kristaps 150: return(h);
1.29 kristaps 151: }
1.10 kristaps 152:
1.93 kristaps 153: void *
154: html_alloc(char *outopts)
155: {
156:
1.172 ! kristaps 157: return(ml_alloc(outopts));
1.93 kristaps 158: }
159:
160: void *
161: xhtml_alloc(char *outopts)
162: {
163:
1.172 ! kristaps 164: return(ml_alloc(outopts));
1.93 kristaps 165: }
166:
1.29 kristaps 167: void
168: html_free(void *p)
169: {
1.30 kristaps 170: struct tag *tag;
171: struct html *h;
172:
173: h = (struct html *)p;
1.37 kristaps 174:
1.66 kristaps 175: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 176: h->tags.head = tag->next;
1.30 kristaps 177: free(tag);
178: }
1.156 schwarze 179:
1.36 kristaps 180: if (h->symtab)
1.133 kristaps 181: mchars_free(h->symtab);
1.53 kristaps 182:
1.30 kristaps 183: free(h);
1.10 kristaps 184: }
1.2 kristaps 185:
1.51 kristaps 186: void
1.29 kristaps 187: print_gen_head(struct html *h)
188: {
1.41 kristaps 189: struct htmlpair tag[4];
1.165 kristaps 190: struct tag *t;
1.41 kristaps 191:
1.164 kristaps 192: tag[0].key = ATTR_CHARSET;
193: tag[0].val = "utf-8";
194: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 195:
1.168 kristaps 196: /*
197: * Print a default style-sheet.
198: */
1.165 kristaps 199: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 200: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 201: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 202: "td.head-vol { text-align: center; }\n"
203: "table.foot td { width: 50%; }\n"
1.171 kristaps 204: "table.head td { width: 33%; }\n"
205: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 206: print_tagq(h, t);
1.41 kristaps 207:
208: if (h->style) {
209: tag[0].key = ATTR_REL;
210: tag[0].val = "stylesheet";
211: tag[1].key = ATTR_HREF;
212: tag[1].val = h->style;
213: tag[2].key = ATTR_TYPE;
214: tag[2].val = "text/css";
215: tag[3].key = ATTR_MEDIA;
216: tag[3].val = "all";
217: print_otag(h, TAG_LINK, 4, tag);
218: }
1.4 kristaps 219: }
220:
1.126 schwarze 221: static void
1.132 kristaps 222: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 223: {
1.90 kristaps 224: enum htmlfont font;
1.88 kristaps 225:
226: switch (deco) {
1.156 schwarze 227: case ESCAPE_FONTPREV:
1.90 kristaps 228: font = h->metal;
1.88 kristaps 229: break;
1.156 schwarze 230: case ESCAPE_FONTITALIC:
1.90 kristaps 231: font = HTMLFONT_ITALIC;
232: break;
1.156 schwarze 233: case ESCAPE_FONTBOLD:
1.90 kristaps 234: font = HTMLFONT_BOLD;
1.88 kristaps 235: break;
1.156 schwarze 236: case ESCAPE_FONTBI:
1.152 schwarze 237: font = HTMLFONT_BI;
238: break;
1.156 schwarze 239: case ESCAPE_FONT:
1.145 kristaps 240: /* FALLTHROUGH */
1.156 schwarze 241: case ESCAPE_FONTROMAN:
1.90 kristaps 242: font = HTMLFONT_NONE;
1.88 kristaps 243: break;
244: default:
245: abort();
246: /* NOTREACHED */
247: }
248:
1.122 kristaps 249: if (h->metaf) {
250: print_tagq(h, h->metaf);
251: h->metaf = NULL;
252: }
253:
254: h->metal = h->metac;
255: h->metac = font;
256:
1.152 schwarze 257: switch (font) {
1.156 schwarze 258: case HTMLFONT_ITALIC:
1.152 schwarze 259: h->metaf = print_otag(h, TAG_I, 0, NULL);
260: break;
1.156 schwarze 261: case HTMLFONT_BOLD:
1.152 schwarze 262: h->metaf = print_otag(h, TAG_B, 0, NULL);
263: break;
1.156 schwarze 264: case HTMLFONT_BI:
1.152 schwarze 265: h->metaf = print_otag(h, TAG_B, 0, NULL);
266: print_otag(h, TAG_I, 0, NULL);
267: break;
268: default:
269: break;
270: }
1.88 kristaps 271: }
272:
1.138 kristaps 273: int
274: html_strlen(const char *cp)
275: {
1.151 schwarze 276: size_t rsz;
277: int skip, sz;
1.138 kristaps 278:
279: /*
280: * Account for escaped sequences within string length
281: * calculations. This follows the logic in term_strlen() as we
282: * must calculate the width of produced strings.
283: * Assume that characters are always width of "1". This is
284: * hacky, but it gets the job done for approximation of widths.
285: */
286:
287: sz = 0;
1.151 schwarze 288: skip = 0;
289: while (1) {
290: rsz = strcspn(cp, "\\");
291: if (rsz) {
292: cp += rsz;
293: if (skip) {
294: skip = 0;
295: rsz--;
296: }
297: sz += rsz;
298: }
299: if ('\0' == *cp)
300: break;
301: cp++;
302: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 303: case ESCAPE_ERROR:
1.138 kristaps 304: return(sz);
1.156 schwarze 305: case ESCAPE_UNICODE:
1.144 kristaps 306: /* FALLTHROUGH */
1.156 schwarze 307: case ESCAPE_NUMBERED:
1.139 kristaps 308: /* FALLTHROUGH */
1.156 schwarze 309: case ESCAPE_SPECIAL:
1.151 schwarze 310: if (skip)
311: skip = 0;
312: else
313: sz++;
314: break;
1.156 schwarze 315: case ESCAPE_SKIPCHAR:
1.151 schwarze 316: skip = 1;
1.138 kristaps 317: break;
318: default:
319: break;
320: }
321: }
1.151 schwarze 322: return(sz);
1.138 kristaps 323: }
1.88 kristaps 324:
1.85 kristaps 325: static int
1.159 schwarze 326: print_escape(char c)
327: {
328:
329: switch (c) {
330: case '<':
331: printf("<");
332: break;
333: case '>':
334: printf(">");
335: break;
336: case '&':
337: printf("&");
338: break;
339: case '"':
340: printf(""");
341: break;
342: case ASCII_NBRSP:
343: putchar('-');
344: break;
345: case ASCII_HYPH:
346: putchar('-');
347: /* FALLTHROUGH */
348: case ASCII_BREAK:
349: break;
350: default:
351: return(0);
352: }
353: return(1);
354: }
355:
356: static int
1.88 kristaps 357: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 358: {
1.77 kristaps 359: size_t sz;
1.141 kristaps 360: int c, len, nospace;
1.82 kristaps 361: const char *seq;
1.132 kristaps 362: enum mandoc_esc esc;
1.158 schwarze 363: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 364: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 365:
1.85 kristaps 366: nospace = 0;
367:
1.132 kristaps 368: while ('\0' != *p) {
1.151 schwarze 369: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
370: h->flags &= ~HTML_SKIPCHAR;
371: p++;
372: continue;
373: }
374:
1.100 kristaps 375: sz = strcspn(p, rejs);
1.77 kristaps 376:
377: fwrite(p, 1, sz, stdout);
1.132 kristaps 378: p += (int)sz;
1.77 kristaps 379:
1.132 kristaps 380: if ('\0' == *p)
381: break;
382:
1.159 schwarze 383: if (print_escape(*p++))
1.154 schwarze 384: continue;
1.77 kristaps 385:
1.132 kristaps 386: esc = mandoc_escape(&p, &seq, &len);
387: if (ESCAPE_ERROR == esc)
388: break;
1.82 kristaps 389:
1.132 kristaps 390: switch (esc) {
1.156 schwarze 391: case ESCAPE_FONT:
1.151 schwarze 392: /* FALLTHROUGH */
1.156 schwarze 393: case ESCAPE_FONTPREV:
1.151 schwarze 394: /* FALLTHROUGH */
1.156 schwarze 395: case ESCAPE_FONTBOLD:
1.151 schwarze 396: /* FALLTHROUGH */
1.156 schwarze 397: case ESCAPE_FONTITALIC:
1.151 schwarze 398: /* FALLTHROUGH */
1.156 schwarze 399: case ESCAPE_FONTBI:
1.152 schwarze 400: /* FALLTHROUGH */
1.156 schwarze 401: case ESCAPE_FONTROMAN:
1.151 schwarze 402: if (0 == norecurse)
403: print_metaf(h, esc);
404: continue;
1.156 schwarze 405: case ESCAPE_SKIPCHAR:
1.151 schwarze 406: h->flags |= HTML_SKIPCHAR;
407: continue;
408: default:
409: break;
410: }
411:
412: if (h->flags & HTML_SKIPCHAR) {
413: h->flags &= ~HTML_SKIPCHAR;
414: continue;
415: }
416:
417: switch (esc) {
1.156 schwarze 418: case ESCAPE_UNICODE:
1.159 schwarze 419: /* Skip past "u" header. */
1.144 kristaps 420: c = mchars_num2uc(seq + 1, len - 1);
421: if ('\0' != c)
422: printf("&#x%x;", c);
423: break;
1.156 schwarze 424: case ESCAPE_NUMBERED:
1.141 kristaps 425: c = mchars_num2char(seq, len);
1.159 schwarze 426: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 427: putchar(c);
1.82 kristaps 428: break;
1.156 schwarze 429: case ESCAPE_SPECIAL:
1.147 kristaps 430: c = mchars_spec2cp(h->symtab, seq, len);
431: if (c > 0)
432: printf("&#%d;", c);
1.159 schwarze 433: else if (-1 == c && 1 == len &&
434: !print_escape(*seq))
1.147 kristaps 435: putchar((int)*seq);
1.132 kristaps 436: break;
1.156 schwarze 437: case ESCAPE_NOSPACE:
1.132 kristaps 438: if ('\0' == *p)
439: nospace = 1;
1.88 kristaps 440: break;
1.82 kristaps 441: default:
442: break;
443: }
1.32 kristaps 444: }
1.85 kristaps 445:
446: return(nospace);
1.14 kristaps 447: }
448:
1.94 kristaps 449: static void
450: print_attr(struct html *h, const char *key, const char *val)
451: {
452: printf(" %s=\"", key);
453: (void)print_encode(h, val, 1);
454: putchar('\"');
455: }
456:
1.51 kristaps 457: struct tag *
1.156 schwarze 458: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 459: int sz, const struct htmlpair *p)
1.14 kristaps 460: {
1.29 kristaps 461: int i;
1.30 kristaps 462: struct tag *t;
463:
1.94 kristaps 464: /* Push this tags onto the stack of open scopes. */
465:
1.30 kristaps 466: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 467: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 468: t->tag = tag;
1.66 kristaps 469: t->next = h->tags.head;
470: h->tags.head = t;
1.30 kristaps 471: } else
472: t = NULL;
1.29 kristaps 473:
474: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 475: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
476: /* Manage keeps! */
477: if ( ! (HTML_KEEP & h->flags)) {
478: if (HTML_PREKEEP & h->flags)
479: h->flags |= HTML_KEEP;
480: putchar(' ');
481: } else
482: printf(" ");
483: }
1.29 kristaps 484:
1.109 kristaps 485: if ( ! (h->flags & HTML_NONOSPACE))
486: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 487: else
488: h->flags |= HTML_NOSPACE;
1.109 kristaps 489:
1.94 kristaps 490: /* Print out the tag name and attributes. */
491:
1.29 kristaps 492: printf("<%s", htmltags[tag].name);
1.94 kristaps 493: for (i = 0; i < sz; i++)
494: print_attr(h, htmlattrs[p[i].key], p[i].val);
495:
1.172 ! kristaps 496: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 497:
1.93 kristaps 498: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 ! kristaps 499: putchar('/');
1.93 kristaps 500:
1.78 kristaps 501: putchar('>');
1.14 kristaps 502:
1.29 kristaps 503: h->flags |= HTML_NOSPACE;
1.117 kristaps 504:
505: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
506: putchar('\n');
507:
1.30 kristaps 508: return(t);
1.14 kristaps 509: }
510:
1.29 kristaps 511: static void
512: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 513: {
1.156 schwarze 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');
1.156 schwarze 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:
1.164 kristaps 526: puts("<!DOCTYPE html>");
1.1 kristaps 527: }
528:
1.51 kristaps 529: void
1.104 kristaps 530: print_text(struct html *h, const char *word)
1.1 kristaps 531: {
532:
1.105 kristaps 533: if ( ! (HTML_NOSPACE & h->flags)) {
534: /* Manage keeps! */
535: if ( ! (HTML_KEEP & h->flags)) {
536: if (HTML_PREKEEP & h->flags)
537: h->flags |= HTML_KEEP;
538: putchar(' ');
539: } else
540: printf(" ");
541: }
1.30 kristaps 542:
1.122 kristaps 543: assert(NULL == h->metaf);
1.152 schwarze 544: switch (h->metac) {
1.156 schwarze 545: case HTMLFONT_ITALIC:
1.152 schwarze 546: h->metaf = print_otag(h, TAG_I, 0, NULL);
547: break;
1.156 schwarze 548: case HTMLFONT_BOLD:
1.152 schwarze 549: h->metaf = print_otag(h, TAG_B, 0, NULL);
550: break;
1.156 schwarze 551: case HTMLFONT_BI:
1.152 schwarze 552: h->metaf = print_otag(h, TAG_B, 0, NULL);
553: print_otag(h, TAG_I, 0, NULL);
554: break;
555: default:
556: break;
557: }
1.122 kristaps 558:
1.104 kristaps 559: assert(word);
1.149 kristaps 560: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 561: if ( ! (h->flags & HTML_NONOSPACE))
562: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 563: } else
564: h->flags |= HTML_NOSPACE;
1.122 kristaps 565:
566: if (h->metaf) {
567: print_tagq(h, h->metaf);
568: h->metaf = NULL;
569: }
1.113 schwarze 570:
571: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 572: }
1.30 kristaps 573:
1.51 kristaps 574: void
1.30 kristaps 575: print_tagq(struct html *h, const struct tag *until)
576: {
577: struct tag *tag;
578:
1.66 kristaps 579: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 580: /*
1.125 kristaps 581: * Remember to close out and nullify the current
582: * meta-font and table, if applicable.
583: */
1.89 kristaps 584: if (tag == h->metaf)
585: h->metaf = NULL;
1.125 kristaps 586: if (tag == h->tblt)
587: h->tblt = NULL;
1.30 kristaps 588: print_ctag(h, tag->tag);
1.66 kristaps 589: h->tags.head = tag->next;
1.30 kristaps 590: free(tag);
591: if (until && tag == until)
592: return;
593: }
594: }
595:
1.51 kristaps 596: void
1.30 kristaps 597: print_stagq(struct html *h, const struct tag *suntil)
598: {
599: struct tag *tag;
600:
1.66 kristaps 601: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 602: if (suntil && tag == suntil)
603: return;
1.156 schwarze 604: /*
1.125 kristaps 605: * Remember to close out and nullify the current
606: * meta-font and table, if applicable.
607: */
1.89 kristaps 608: if (tag == h->metaf)
609: h->metaf = NULL;
1.125 kristaps 610: if (tag == h->tblt)
611: h->tblt = NULL;
1.30 kristaps 612: print_ctag(h, tag->tag);
1.66 kristaps 613: h->tags.head = tag->next;
1.30 kristaps 614: free(tag);
615: }
616: }
1.171 kristaps 617:
618: void
619: print_paragraph(struct html *h)
620: {
621: struct tag *t;
622: struct htmlpair tag;
623:
624: PAIR_CLASS_INIT(&tag, "spacer");
625: t = print_otag(h, TAG_DIV, 1, &tag);
626: print_tagq(h, t);
627: }
628:
1.55 kristaps 629:
630: void
631: bufinit(struct html *h)
632: {
633:
634: h->buf[0] = '\0';
635: h->buflen = 0;
636: }
637:
638: void
1.58 kristaps 639: bufcat_style(struct html *h, const char *key, const char *val)
640: {
641:
642: bufcat(h, key);
1.141 kristaps 643: bufcat(h, ":");
1.58 kristaps 644: bufcat(h, val);
1.141 kristaps 645: bufcat(h, ";");
1.58 kristaps 646: }
647:
648: void
1.55 kristaps 649: bufcat(struct html *h, const char *p)
650: {
1.157 schwarze 651:
652: /*
653: * XXX This is broken and not easy to fix.
654: * When using the -Oincludes option, buffmt_includes()
655: * may pass in strings overrunning BUFSIZ, causing a crash.
656: */
1.55 kristaps 657:
1.141 kristaps 658: h->buflen = strlcat(h->buf, p, BUFSIZ);
659: assert(h->buflen < BUFSIZ);
1.55 kristaps 660: }
661:
662: void
1.141 kristaps 663: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 664: {
665: va_list ap;
666:
667: va_start(ap, fmt);
1.156 schwarze 668: (void)vsnprintf(h->buf + (int)h->buflen,
669: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 670: va_end(ap);
671: h->buflen = strlen(h->buf);
672: }
673:
1.141 kristaps 674: static void
1.55 kristaps 675: bufncat(struct html *h, const char *p, size_t sz)
676: {
677:
1.141 kristaps 678: assert(h->buflen + sz + 1 < BUFSIZ);
679: strncat(h->buf, p, sz);
1.55 kristaps 680: h->buflen += sz;
681: }
682:
683: void
684: buffmt_includes(struct html *h, const char *name)
685: {
686: const char *p, *pp;
687:
688: pp = h->base_includes;
1.156 schwarze 689:
1.143 kristaps 690: bufinit(h);
1.61 kristaps 691: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 692: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 693: switch (*(p + 1)) {
1.156 schwarze 694: case'I':
1.55 kristaps 695: bufcat(h, name);
696: break;
697: default:
698: bufncat(h, p, 2);
699: break;
700: }
701: pp = p + 2;
702: }
703: if (pp)
704: bufcat(h, pp);
705: }
706:
707: void
1.156 schwarze 708: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 709: {
710: const char *p, *pp;
711:
712: pp = h->base_man;
1.156 schwarze 713:
1.143 kristaps 714: bufinit(h);
1.61 kristaps 715: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 716: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 717: switch (*(p + 1)) {
1.156 schwarze 718: case 'S':
1.58 kristaps 719: bufcat(h, sec ? sec : "1");
1.55 kristaps 720: break;
1.156 schwarze 721: case 'N':
1.153 joerg 722: bufcat_fmt(h, "%s", name);
1.55 kristaps 723: break;
724: default:
725: bufncat(h, p, 2);
726: break;
727: }
728: pp = p + 2;
729: }
730: if (pp)
731: bufcat(h, pp);
732: }
1.58 kristaps 733:
734: void
735: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
736: {
1.62 kristaps 737: double v;
1.58 kristaps 738:
739: v = su->scale;
1.140 kristaps 740: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
741: v = 1.0;
1.162 kristaps 742: else if (SCALE_BU == su->unit)
743: v /= 24.0;
1.58 kristaps 744:
1.141 kristaps 745: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 746: }
1.68 kristaps 747:
748: void
1.142 kristaps 749: bufcat_id(struct html *h, const char *src)
1.68 kristaps 750: {
751:
752: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
753:
1.142 kristaps 754: while ('\0' != *src)
755: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 756: }
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