Annotation of mandoc/html.c, Revision 1.165
1.165 ! kristaps 1: /* $Id: html.c,v 1.164 2014/09/27 08:54:34 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: "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 */
1.164 kristaps 95: "charset", /* ATTR_CHARSET */
1.29 kristaps 96: };
1.10 kristaps 97:
1.140 kristaps 98: static const char *const roffscales[SCALE_MAX] = {
99: "cm", /* SCALE_CM */
100: "in", /* SCALE_IN */
101: "pc", /* SCALE_PC */
102: "pt", /* SCALE_PT */
103: "em", /* SCALE_EM */
104: "em", /* SCALE_MM */
105: "ex", /* SCALE_EN */
106: "ex", /* SCALE_BU */
107: "em", /* SCALE_VS */
108: "ex", /* SCALE_FS */
109: };
110:
1.141 kristaps 111: static void bufncat(struct html *, const char *, size_t);
112: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 113: static int print_escape(char);
1.141 kristaps 114: static int print_encode(struct html *, const char *, int);
115: static void print_metaf(struct html *, enum mandoc_esc);
116: static void print_attr(struct html *, const char *, const char *);
117: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 118:
1.156 schwarze 119:
1.93 kristaps 120: static void *
121: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 122: {
1.30 kristaps 123: struct html *h;
1.150 kristaps 124: const char *toks[5];
1.63 kristaps 125: char *v;
1.43 kristaps 126:
127: toks[0] = "style";
1.53 kristaps 128: toks[1] = "man";
1.54 kristaps 129: toks[2] = "includes";
1.150 kristaps 130: toks[3] = "fragment";
131: toks[4] = NULL;
1.30 kristaps 132:
1.128 kristaps 133: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 134:
1.93 kristaps 135: h->type = type;
1.66 kristaps 136: h->tags.head = NULL;
1.136 kristaps 137: h->symtab = mchars_alloc();
1.41 kristaps 138:
1.47 kristaps 139: while (outopts && *outopts)
1.63 kristaps 140: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 141: case 0:
1.43 kristaps 142: h->style = v;
143: break;
1.156 schwarze 144: case 1:
1.53 kristaps 145: h->base_man = v;
1.43 kristaps 146: break;
1.156 schwarze 147: case 2:
1.54 kristaps 148: h->base_includes = v;
1.150 kristaps 149: break;
1.156 schwarze 150: case 3:
1.150 kristaps 151: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 152: break;
1.43 kristaps 153: default:
154: break;
155: }
156:
1.30 kristaps 157: return(h);
1.29 kristaps 158: }
1.10 kristaps 159:
1.93 kristaps 160: void *
161: html_alloc(char *outopts)
162: {
163:
164: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
165: }
166:
167: void *
168: xhtml_alloc(char *outopts)
169: {
170:
171: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
172: }
173:
1.29 kristaps 174: void
175: html_free(void *p)
176: {
1.30 kristaps 177: struct tag *tag;
178: struct html *h;
179:
180: h = (struct html *)p;
1.37 kristaps 181:
1.66 kristaps 182: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 183: h->tags.head = tag->next;
1.30 kristaps 184: free(tag);
185: }
1.156 schwarze 186:
1.36 kristaps 187: if (h->symtab)
1.133 kristaps 188: mchars_free(h->symtab);
1.53 kristaps 189:
1.30 kristaps 190: free(h);
1.10 kristaps 191: }
1.2 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];
1.165 ! kristaps 197: struct tag *t;
1.41 kristaps 198:
1.164 kristaps 199: tag[0].key = ATTR_CHARSET;
200: tag[0].val = "utf-8";
201: print_otag(h, TAG_META, 1, tag);
1.165 ! kristaps 202:
! 203: t = print_otag(h, TAG_STYLE, 0, NULL);
! 204: print_text(h, "table.head, table.foot { width: 100%; }\n");
! 205: print_tagq(h, t);
1.41 kristaps 206:
207: if (h->style) {
208: tag[0].key = ATTR_REL;
209: tag[0].val = "stylesheet";
210: tag[1].key = ATTR_HREF;
211: tag[1].val = h->style;
212: tag[2].key = ATTR_TYPE;
213: tag[2].val = "text/css";
214: tag[3].key = ATTR_MEDIA;
215: tag[3].val = "all";
216: print_otag(h, TAG_LINK, 4, tag);
217: }
1.4 kristaps 218: }
219:
1.126 schwarze 220: static void
1.132 kristaps 221: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 222: {
1.90 kristaps 223: enum htmlfont font;
1.88 kristaps 224:
225: switch (deco) {
1.156 schwarze 226: case ESCAPE_FONTPREV:
1.90 kristaps 227: font = h->metal;
1.88 kristaps 228: break;
1.156 schwarze 229: case ESCAPE_FONTITALIC:
1.90 kristaps 230: font = HTMLFONT_ITALIC;
231: break;
1.156 schwarze 232: case ESCAPE_FONTBOLD:
1.90 kristaps 233: font = HTMLFONT_BOLD;
1.88 kristaps 234: break;
1.156 schwarze 235: case ESCAPE_FONTBI:
1.152 schwarze 236: font = HTMLFONT_BI;
237: break;
1.156 schwarze 238: case ESCAPE_FONT:
1.145 kristaps 239: /* FALLTHROUGH */
1.156 schwarze 240: case ESCAPE_FONTROMAN:
1.90 kristaps 241: font = HTMLFONT_NONE;
1.88 kristaps 242: break;
243: default:
244: abort();
245: /* NOTREACHED */
246: }
247:
1.122 kristaps 248: if (h->metaf) {
249: print_tagq(h, h->metaf);
250: h->metaf = NULL;
251: }
252:
253: h->metal = h->metac;
254: h->metac = font;
255:
1.152 schwarze 256: switch (font) {
1.156 schwarze 257: case HTMLFONT_ITALIC:
1.152 schwarze 258: h->metaf = print_otag(h, TAG_I, 0, NULL);
259: break;
1.156 schwarze 260: case HTMLFONT_BOLD:
1.152 schwarze 261: h->metaf = print_otag(h, TAG_B, 0, NULL);
262: break;
1.156 schwarze 263: case HTMLFONT_BI:
1.152 schwarze 264: h->metaf = print_otag(h, TAG_B, 0, NULL);
265: print_otag(h, TAG_I, 0, NULL);
266: break;
267: default:
268: break;
269: }
1.88 kristaps 270: }
271:
1.138 kristaps 272: int
273: html_strlen(const char *cp)
274: {
1.151 schwarze 275: size_t rsz;
276: int skip, sz;
1.138 kristaps 277:
278: /*
279: * Account for escaped sequences within string length
280: * calculations. This follows the logic in term_strlen() as we
281: * must calculate the width of produced strings.
282: * Assume that characters are always width of "1". This is
283: * hacky, but it gets the job done for approximation of widths.
284: */
285:
286: sz = 0;
1.151 schwarze 287: skip = 0;
288: while (1) {
289: rsz = strcspn(cp, "\\");
290: if (rsz) {
291: cp += rsz;
292: if (skip) {
293: skip = 0;
294: rsz--;
295: }
296: sz += rsz;
297: }
298: if ('\0' == *cp)
299: break;
300: cp++;
301: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 302: case ESCAPE_ERROR:
1.138 kristaps 303: return(sz);
1.156 schwarze 304: case ESCAPE_UNICODE:
1.144 kristaps 305: /* FALLTHROUGH */
1.156 schwarze 306: case ESCAPE_NUMBERED:
1.139 kristaps 307: /* FALLTHROUGH */
1.156 schwarze 308: case ESCAPE_SPECIAL:
1.151 schwarze 309: if (skip)
310: skip = 0;
311: else
312: sz++;
313: break;
1.156 schwarze 314: case ESCAPE_SKIPCHAR:
1.151 schwarze 315: skip = 1;
1.138 kristaps 316: break;
317: default:
318: break;
319: }
320: }
1.151 schwarze 321: return(sz);
1.138 kristaps 322: }
1.88 kristaps 323:
1.85 kristaps 324: static int
1.159 schwarze 325: print_escape(char c)
326: {
327:
328: switch (c) {
329: case '<':
330: printf("<");
331: break;
332: case '>':
333: printf(">");
334: break;
335: case '&':
336: printf("&");
337: break;
338: case '"':
339: printf(""");
340: break;
341: case ASCII_NBRSP:
342: putchar('-');
343: break;
344: case ASCII_HYPH:
345: putchar('-');
346: /* FALLTHROUGH */
347: case ASCII_BREAK:
348: break;
349: default:
350: return(0);
351: }
352: return(1);
353: }
354:
355: static int
1.88 kristaps 356: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 357: {
1.77 kristaps 358: size_t sz;
1.141 kristaps 359: int c, len, nospace;
1.82 kristaps 360: const char *seq;
1.132 kristaps 361: enum mandoc_esc esc;
1.158 schwarze 362: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 363: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 364:
1.85 kristaps 365: nospace = 0;
366:
1.132 kristaps 367: while ('\0' != *p) {
1.151 schwarze 368: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
369: h->flags &= ~HTML_SKIPCHAR;
370: p++;
371: continue;
372: }
373:
1.100 kristaps 374: sz = strcspn(p, rejs);
1.77 kristaps 375:
376: fwrite(p, 1, sz, stdout);
1.132 kristaps 377: p += (int)sz;
1.77 kristaps 378:
1.132 kristaps 379: if ('\0' == *p)
380: break;
381:
1.159 schwarze 382: if (print_escape(*p++))
1.154 schwarze 383: continue;
1.77 kristaps 384:
1.132 kristaps 385: esc = mandoc_escape(&p, &seq, &len);
386: if (ESCAPE_ERROR == esc)
387: break;
1.82 kristaps 388:
1.132 kristaps 389: switch (esc) {
1.156 schwarze 390: case ESCAPE_FONT:
1.151 schwarze 391: /* FALLTHROUGH */
1.156 schwarze 392: case ESCAPE_FONTPREV:
1.151 schwarze 393: /* FALLTHROUGH */
1.156 schwarze 394: case ESCAPE_FONTBOLD:
1.151 schwarze 395: /* FALLTHROUGH */
1.156 schwarze 396: case ESCAPE_FONTITALIC:
1.151 schwarze 397: /* FALLTHROUGH */
1.156 schwarze 398: case ESCAPE_FONTBI:
1.152 schwarze 399: /* FALLTHROUGH */
1.156 schwarze 400: case ESCAPE_FONTROMAN:
1.151 schwarze 401: if (0 == norecurse)
402: print_metaf(h, esc);
403: continue;
1.156 schwarze 404: case ESCAPE_SKIPCHAR:
1.151 schwarze 405: h->flags |= HTML_SKIPCHAR;
406: continue;
407: default:
408: break;
409: }
410:
411: if (h->flags & HTML_SKIPCHAR) {
412: h->flags &= ~HTML_SKIPCHAR;
413: continue;
414: }
415:
416: switch (esc) {
1.156 schwarze 417: case ESCAPE_UNICODE:
1.159 schwarze 418: /* Skip past "u" header. */
1.144 kristaps 419: c = mchars_num2uc(seq + 1, len - 1);
420: if ('\0' != c)
421: printf("&#x%x;", c);
422: break;
1.156 schwarze 423: case ESCAPE_NUMBERED:
1.141 kristaps 424: c = mchars_num2char(seq, len);
1.159 schwarze 425: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 426: putchar(c);
1.82 kristaps 427: break;
1.156 schwarze 428: case ESCAPE_SPECIAL:
1.147 kristaps 429: c = mchars_spec2cp(h->symtab, seq, len);
430: if (c > 0)
431: printf("&#%d;", c);
1.159 schwarze 432: else if (-1 == c && 1 == len &&
433: !print_escape(*seq))
1.147 kristaps 434: putchar((int)*seq);
1.132 kristaps 435: break;
1.156 schwarze 436: case ESCAPE_NOSPACE:
1.132 kristaps 437: if ('\0' == *p)
438: nospace = 1;
1.88 kristaps 439: break;
1.82 kristaps 440: default:
441: break;
442: }
1.32 kristaps 443: }
1.85 kristaps 444:
445: return(nospace);
1.14 kristaps 446: }
447:
1.94 kristaps 448: static void
449: print_attr(struct html *h, const char *key, const char *val)
450: {
451: printf(" %s=\"", key);
452: (void)print_encode(h, val, 1);
453: putchar('\"');
454: }
455:
1.51 kristaps 456: struct tag *
1.156 schwarze 457: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 458: int sz, const struct htmlpair *p)
1.14 kristaps 459: {
1.29 kristaps 460: int i;
1.30 kristaps 461: struct tag *t;
462:
1.94 kristaps 463: /* Push this tags onto the stack of open scopes. */
464:
1.30 kristaps 465: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 466: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 467: t->tag = tag;
1.66 kristaps 468: t->next = h->tags.head;
469: h->tags.head = t;
1.30 kristaps 470: } else
471: t = NULL;
1.29 kristaps 472:
473: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 474: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
475: /* Manage keeps! */
476: if ( ! (HTML_KEEP & h->flags)) {
477: if (HTML_PREKEEP & h->flags)
478: h->flags |= HTML_KEEP;
479: putchar(' ');
480: } else
481: printf(" ");
482: }
1.29 kristaps 483:
1.109 kristaps 484: if ( ! (h->flags & HTML_NONOSPACE))
485: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 486: else
487: h->flags |= HTML_NOSPACE;
1.109 kristaps 488:
1.94 kristaps 489: /* Print out the tag name and attributes. */
490:
1.29 kristaps 491: printf("<%s", htmltags[tag].name);
1.94 kristaps 492: for (i = 0; i < sz; i++)
493: print_attr(h, htmlattrs[p[i].key], p[i].val);
494:
1.134 kristaps 495: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 496:
1.93 kristaps 497: if (HTML_AUTOCLOSE & htmltags[tag].flags)
498: switch (h->type) {
1.156 schwarze 499: case HTML_XHTML_1_0_STRICT:
1.93 kristaps 500: putchar('/');
501: break;
502: default:
503: break;
504: }
505:
1.78 kristaps 506: putchar('>');
1.14 kristaps 507:
1.29 kristaps 508: h->flags |= HTML_NOSPACE;
1.117 kristaps 509:
510: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
511: putchar('\n');
512:
1.30 kristaps 513: return(t);
1.14 kristaps 514: }
515:
1.29 kristaps 516: static void
517: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 518: {
1.156 schwarze 519:
1.29 kristaps 520: printf("</%s>", htmltags[tag].name);
1.71 kristaps 521: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 522: h->flags |= HTML_NOSPACE;
1.78 kristaps 523: putchar('\n');
1.156 schwarze 524: }
1.14 kristaps 525: }
526:
1.51 kristaps 527: void
1.93 kristaps 528: print_gen_decls(struct html *h)
1.1 kristaps 529: {
1.93 kristaps 530:
1.164 kristaps 531: puts("<!DOCTYPE html>");
1.1 kristaps 532: }
533:
1.51 kristaps 534: void
1.104 kristaps 535: print_text(struct html *h, const char *word)
1.1 kristaps 536: {
537:
1.105 kristaps 538: if ( ! (HTML_NOSPACE & h->flags)) {
539: /* Manage keeps! */
540: if ( ! (HTML_KEEP & h->flags)) {
541: if (HTML_PREKEEP & h->flags)
542: h->flags |= HTML_KEEP;
543: putchar(' ');
544: } else
545: printf(" ");
546: }
1.30 kristaps 547:
1.122 kristaps 548: assert(NULL == h->metaf);
1.152 schwarze 549: switch (h->metac) {
1.156 schwarze 550: case HTMLFONT_ITALIC:
1.152 schwarze 551: h->metaf = print_otag(h, TAG_I, 0, NULL);
552: break;
1.156 schwarze 553: case HTMLFONT_BOLD:
1.152 schwarze 554: h->metaf = print_otag(h, TAG_B, 0, NULL);
555: break;
1.156 schwarze 556: case HTMLFONT_BI:
1.152 schwarze 557: h->metaf = print_otag(h, TAG_B, 0, NULL);
558: print_otag(h, TAG_I, 0, NULL);
559: break;
560: default:
561: break;
562: }
1.122 kristaps 563:
1.104 kristaps 564: assert(word);
1.149 kristaps 565: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 566: if ( ! (h->flags & HTML_NONOSPACE))
567: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 568: } else
569: h->flags |= HTML_NOSPACE;
1.122 kristaps 570:
571: if (h->metaf) {
572: print_tagq(h, h->metaf);
573: h->metaf = NULL;
574: }
1.113 schwarze 575:
576: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 577: }
1.30 kristaps 578:
1.51 kristaps 579: void
1.30 kristaps 580: print_tagq(struct html *h, const struct tag *until)
581: {
582: struct tag *tag;
583:
1.66 kristaps 584: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 585: /*
1.125 kristaps 586: * Remember to close out and nullify the current
587: * meta-font and table, if applicable.
588: */
1.89 kristaps 589: if (tag == h->metaf)
590: h->metaf = NULL;
1.125 kristaps 591: if (tag == h->tblt)
592: h->tblt = NULL;
1.30 kristaps 593: print_ctag(h, tag->tag);
1.66 kristaps 594: h->tags.head = tag->next;
1.30 kristaps 595: free(tag);
596: if (until && tag == until)
597: return;
598: }
599: }
600:
1.51 kristaps 601: void
1.30 kristaps 602: print_stagq(struct html *h, const struct tag *suntil)
603: {
604: struct tag *tag;
605:
1.66 kristaps 606: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 607: if (suntil && tag == suntil)
608: return;
1.156 schwarze 609: /*
1.125 kristaps 610: * Remember to close out and nullify the current
611: * meta-font and table, if applicable.
612: */
1.89 kristaps 613: if (tag == h->metaf)
614: h->metaf = NULL;
1.125 kristaps 615: if (tag == h->tblt)
616: h->tblt = NULL;
1.30 kristaps 617: print_ctag(h, tag->tag);
1.66 kristaps 618: h->tags.head = tag->next;
1.30 kristaps 619: free(tag);
620: }
621: }
1.55 kristaps 622:
623: void
624: bufinit(struct html *h)
625: {
626:
627: h->buf[0] = '\0';
628: h->buflen = 0;
629: }
630:
631: void
1.58 kristaps 632: bufcat_style(struct html *h, const char *key, const char *val)
633: {
634:
635: bufcat(h, key);
1.141 kristaps 636: bufcat(h, ":");
1.58 kristaps 637: bufcat(h, val);
1.141 kristaps 638: bufcat(h, ";");
1.58 kristaps 639: }
640:
641: void
1.55 kristaps 642: bufcat(struct html *h, const char *p)
643: {
1.157 schwarze 644:
645: /*
646: * XXX This is broken and not easy to fix.
647: * When using the -Oincludes option, buffmt_includes()
648: * may pass in strings overrunning BUFSIZ, causing a crash.
649: */
1.55 kristaps 650:
1.141 kristaps 651: h->buflen = strlcat(h->buf, p, BUFSIZ);
652: assert(h->buflen < BUFSIZ);
1.55 kristaps 653: }
654:
655: void
1.141 kristaps 656: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 657: {
658: va_list ap;
659:
660: va_start(ap, fmt);
1.156 schwarze 661: (void)vsnprintf(h->buf + (int)h->buflen,
662: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 663: va_end(ap);
664: h->buflen = strlen(h->buf);
665: }
666:
1.141 kristaps 667: static void
1.55 kristaps 668: bufncat(struct html *h, const char *p, size_t sz)
669: {
670:
1.141 kristaps 671: assert(h->buflen + sz + 1 < BUFSIZ);
672: strncat(h->buf, p, sz);
1.55 kristaps 673: h->buflen += sz;
674: }
675:
676: void
677: buffmt_includes(struct html *h, const char *name)
678: {
679: const char *p, *pp;
680:
681: pp = h->base_includes;
1.156 schwarze 682:
1.143 kristaps 683: bufinit(h);
1.61 kristaps 684: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 685: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 686: switch (*(p + 1)) {
1.156 schwarze 687: case'I':
1.55 kristaps 688: bufcat(h, name);
689: break;
690: default:
691: bufncat(h, p, 2);
692: break;
693: }
694: pp = p + 2;
695: }
696: if (pp)
697: bufcat(h, pp);
698: }
699:
700: void
1.156 schwarze 701: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 702: {
703: const char *p, *pp;
704:
705: pp = h->base_man;
1.156 schwarze 706:
1.143 kristaps 707: bufinit(h);
1.61 kristaps 708: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 709: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 710: switch (*(p + 1)) {
1.156 schwarze 711: case 'S':
1.58 kristaps 712: bufcat(h, sec ? sec : "1");
1.55 kristaps 713: break;
1.156 schwarze 714: case 'N':
1.153 joerg 715: bufcat_fmt(h, "%s", name);
1.55 kristaps 716: break;
717: default:
718: bufncat(h, p, 2);
719: break;
720: }
721: pp = p + 2;
722: }
723: if (pp)
724: bufcat(h, pp);
725: }
1.58 kristaps 726:
727: void
728: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
729: {
1.62 kristaps 730: double v;
1.58 kristaps 731:
732: v = su->scale;
1.140 kristaps 733: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
734: v = 1.0;
1.162 kristaps 735: else if (SCALE_BU == su->unit)
736: v /= 24.0;
1.58 kristaps 737:
1.141 kristaps 738: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 739: }
1.68 kristaps 740:
741: void
1.142 kristaps 742: bufcat_id(struct html *h, const char *src)
1.68 kristaps 743: {
744:
745: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
746:
1.142 kristaps 747: while ('\0' != *src)
748: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 749: }
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