Annotation of mandoc/html.c, Revision 1.158
1.158 ! schwarze 1: /* $Id: html.c,v 1.157 2014/04/23 16:08:33 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: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.41 kristaps 22: #include <sys/types.h>
1.30 kristaps 23:
1.1 kristaps 24: #include <assert.h>
1.68 kristaps 25: #include <ctype.h>
1.76 kristaps 26: #include <stdarg.h>
1.29 kristaps 27: #include <stdio.h>
1.63 kristaps 28: #include <stdint.h>
1.1 kristaps 29: #include <stdlib.h>
1.33 kristaps 30: #include <string.h>
1.45 kristaps 31: #include <unistd.h>
1.1 kristaps 32:
1.100 kristaps 33: #include "mandoc.h"
1.155 schwarze 34: #include "mandoc_aux.h"
1.138 kristaps 35: #include "libmandoc.h"
1.58 kristaps 36: #include "out.h"
1.51 kristaps 37: #include "html.h"
1.64 kristaps 38: #include "main.h"
1.63 kristaps 39:
1.29 kristaps 40: struct htmldata {
1.63 kristaps 41: const char *name;
1.29 kristaps 42: int flags;
1.30 kristaps 43: #define HTML_CLRLINE (1 << 0)
44: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 45: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 46: };
1.7 kristaps 47:
1.29 kristaps 48: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 49: {"html", HTML_CLRLINE}, /* TAG_HTML */
50: {"head", HTML_CLRLINE}, /* TAG_HEAD */
51: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 52: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 53: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 54: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 55: {"h1", 0}, /* TAG_H1 */
56: {"h2", 0}, /* TAG_H2 */
57: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 58: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 59: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 60: {"a", 0}, /* TAG_A */
1.33 kristaps 61: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 62: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 63: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 64: {"tr", HTML_CLRLINE}, /* TAG_TR */
65: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 66: {"li", HTML_CLRLINE}, /* TAG_LI */
67: {"ul", HTML_CLRLINE}, /* TAG_UL */
68: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 69: {"dl", HTML_CLRLINE}, /* TAG_DL */
70: {"dt", HTML_CLRLINE}, /* TAG_DT */
71: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 72: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.116 kristaps 73: {"p", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */
1.118 kristaps 74: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 75: {"b", 0 }, /* TAG_B */
1.120 kristaps 76: {"i", 0 }, /* TAG_I */
1.121 kristaps 77: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 78: {"small", 0 }, /* TAG_SMALL */
1.90 kristaps 79: };
80:
1.82 kristaps 81: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 82: "http-equiv", /* ATTR_HTTPEQUIV */
83: "content", /* ATTR_CONTENT */
84: "name", /* ATTR_NAME */
85: "rel", /* ATTR_REL */
86: "href", /* ATTR_HREF */
87: "type", /* ATTR_TYPE */
88: "media", /* ATTR_MEDIA */
89: "class", /* ATTR_CLASS */
90: "style", /* ATTR_STYLE */
91: "width", /* ATTR_WIDTH */
92: "id", /* ATTR_ID */
93: "summary", /* ATTR_SUMMARY */
94: "align", /* ATTR_ALIGN */
1.125 kristaps 95: "colspan", /* ATTR_COLSPAN */
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);
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:
197: tag[0].key = ATTR_HTTPEQUIV;
198: tag[0].val = "Content-Type";
199: tag[1].key = ATTR_CONTENT;
200: tag[1].val = "text/html; charset=utf-8";
201: print_otag(h, TAG_META, 2, tag);
202:
203: tag[0].key = ATTR_NAME;
204: tag[0].val = "resource-type";
205: tag[1].key = ATTR_CONTENT;
206: tag[1].val = "document";
207: print_otag(h, TAG_META, 2, tag);
208:
209: if (h->style) {
210: tag[0].key = ATTR_REL;
211: tag[0].val = "stylesheet";
212: tag[1].key = ATTR_HREF;
213: tag[1].val = h->style;
214: tag[2].key = ATTR_TYPE;
215: tag[2].val = "text/css";
216: tag[3].key = ATTR_MEDIA;
217: tag[3].val = "all";
218: print_otag(h, TAG_LINK, 4, tag);
219: }
1.4 kristaps 220: }
221:
1.126 schwarze 222: static void
1.132 kristaps 223: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 224: {
1.90 kristaps 225: enum htmlfont font;
1.88 kristaps 226:
227: switch (deco) {
1.156 schwarze 228: case ESCAPE_FONTPREV:
1.90 kristaps 229: font = h->metal;
1.88 kristaps 230: break;
1.156 schwarze 231: case ESCAPE_FONTITALIC:
1.90 kristaps 232: font = HTMLFONT_ITALIC;
233: break;
1.156 schwarze 234: case ESCAPE_FONTBOLD:
1.90 kristaps 235: font = HTMLFONT_BOLD;
1.88 kristaps 236: break;
1.156 schwarze 237: case ESCAPE_FONTBI:
1.152 schwarze 238: font = HTMLFONT_BI;
239: break;
1.156 schwarze 240: case ESCAPE_FONT:
1.145 kristaps 241: /* FALLTHROUGH */
1.156 schwarze 242: case ESCAPE_FONTROMAN:
1.90 kristaps 243: font = HTMLFONT_NONE;
1.88 kristaps 244: break;
245: default:
246: abort();
247: /* NOTREACHED */
248: }
249:
1.122 kristaps 250: if (h->metaf) {
251: print_tagq(h, h->metaf);
252: h->metaf = NULL;
253: }
254:
255: h->metal = h->metac;
256: h->metac = font;
257:
1.152 schwarze 258: switch (font) {
1.156 schwarze 259: case HTMLFONT_ITALIC:
1.152 schwarze 260: h->metaf = print_otag(h, TAG_I, 0, NULL);
261: break;
1.156 schwarze 262: case HTMLFONT_BOLD:
1.152 schwarze 263: h->metaf = print_otag(h, TAG_B, 0, NULL);
264: break;
1.156 schwarze 265: case HTMLFONT_BI:
1.152 schwarze 266: h->metaf = print_otag(h, TAG_B, 0, NULL);
267: print_otag(h, TAG_I, 0, NULL);
268: break;
269: default:
270: break;
271: }
1.88 kristaps 272: }
273:
1.138 kristaps 274: int
275: html_strlen(const char *cp)
276: {
1.151 schwarze 277: size_t rsz;
278: int skip, sz;
1.138 kristaps 279:
280: /*
281: * Account for escaped sequences within string length
282: * calculations. This follows the logic in term_strlen() as we
283: * must calculate the width of produced strings.
284: * Assume that characters are always width of "1". This is
285: * hacky, but it gets the job done for approximation of widths.
286: */
287:
288: sz = 0;
1.151 schwarze 289: skip = 0;
290: while (1) {
291: rsz = strcspn(cp, "\\");
292: if (rsz) {
293: cp += rsz;
294: if (skip) {
295: skip = 0;
296: rsz--;
297: }
298: sz += rsz;
299: }
300: if ('\0' == *cp)
301: break;
302: cp++;
303: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 304: case ESCAPE_ERROR:
1.138 kristaps 305: return(sz);
1.156 schwarze 306: case ESCAPE_UNICODE:
1.144 kristaps 307: /* FALLTHROUGH */
1.156 schwarze 308: case ESCAPE_NUMBERED:
1.139 kristaps 309: /* FALLTHROUGH */
1.156 schwarze 310: case ESCAPE_SPECIAL:
1.151 schwarze 311: if (skip)
312: skip = 0;
313: else
314: sz++;
315: break;
1.156 schwarze 316: case ESCAPE_SKIPCHAR:
1.151 schwarze 317: skip = 1;
1.138 kristaps 318: break;
319: default:
320: break;
321: }
322: }
1.151 schwarze 323: return(sz);
1.138 kristaps 324: }
1.88 kristaps 325:
1.85 kristaps 326: static int
1.88 kristaps 327: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 328: {
1.77 kristaps 329: size_t sz;
1.141 kristaps 330: int c, len, nospace;
1.82 kristaps 331: const char *seq;
1.132 kristaps 332: enum mandoc_esc esc;
1.158 ! schwarze 333: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 334: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 335:
1.85 kristaps 336: nospace = 0;
337:
1.132 kristaps 338: while ('\0' != *p) {
1.151 schwarze 339: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
340: h->flags &= ~HTML_SKIPCHAR;
341: p++;
342: continue;
343: }
344:
1.100 kristaps 345: sz = strcspn(p, rejs);
1.77 kristaps 346:
347: fwrite(p, 1, sz, stdout);
1.132 kristaps 348: p += (int)sz;
1.77 kristaps 349:
1.132 kristaps 350: if ('\0' == *p)
351: break;
352:
353: switch (*p++) {
1.156 schwarze 354: case '<':
1.82 kristaps 355: printf("<");
356: continue;
1.156 schwarze 357: case '>':
1.82 kristaps 358: printf(">");
359: continue;
1.156 schwarze 360: case '&':
1.82 kristaps 361: printf("&");
1.158 ! schwarze 362: continue;
! 363: case '"':
! 364: printf(""");
1.34 kristaps 365: continue;
1.156 schwarze 366: case ASCII_NBRSP:
1.154 schwarze 367: putchar('-');
368: continue;
1.156 schwarze 369: case ASCII_HYPH:
1.100 kristaps 370: putchar('-');
1.154 schwarze 371: /* FALLTHROUGH */
1.156 schwarze 372: case ASCII_BREAK:
1.100 kristaps 373: continue;
1.132 kristaps 374: default:
1.77 kristaps 375: break;
1.132 kristaps 376: }
1.77 kristaps 377:
1.132 kristaps 378: esc = mandoc_escape(&p, &seq, &len);
379: if (ESCAPE_ERROR == esc)
380: break;
1.82 kristaps 381:
1.132 kristaps 382: switch (esc) {
1.156 schwarze 383: case ESCAPE_FONT:
1.151 schwarze 384: /* FALLTHROUGH */
1.156 schwarze 385: case ESCAPE_FONTPREV:
1.151 schwarze 386: /* FALLTHROUGH */
1.156 schwarze 387: case ESCAPE_FONTBOLD:
1.151 schwarze 388: /* FALLTHROUGH */
1.156 schwarze 389: case ESCAPE_FONTITALIC:
1.151 schwarze 390: /* FALLTHROUGH */
1.156 schwarze 391: case ESCAPE_FONTBI:
1.152 schwarze 392: /* FALLTHROUGH */
1.156 schwarze 393: case ESCAPE_FONTROMAN:
1.151 schwarze 394: if (0 == norecurse)
395: print_metaf(h, esc);
396: continue;
1.156 schwarze 397: case ESCAPE_SKIPCHAR:
1.151 schwarze 398: h->flags |= HTML_SKIPCHAR;
399: continue;
400: default:
401: break;
402: }
403:
404: if (h->flags & HTML_SKIPCHAR) {
405: h->flags &= ~HTML_SKIPCHAR;
406: continue;
407: }
408:
409: switch (esc) {
1.156 schwarze 410: case ESCAPE_UNICODE:
1.144 kristaps 411: /* Skip passed "u" header. */
412: c = mchars_num2uc(seq + 1, len - 1);
413: if ('\0' != c)
414: printf("&#x%x;", c);
415: break;
1.156 schwarze 416: case ESCAPE_NUMBERED:
1.141 kristaps 417: c = mchars_num2char(seq, len);
418: if ('\0' != c)
419: putchar(c);
1.82 kristaps 420: break;
1.156 schwarze 421: case ESCAPE_SPECIAL:
1.147 kristaps 422: c = mchars_spec2cp(h->symtab, seq, len);
423: if (c > 0)
424: printf("&#%d;", c);
425: else if (-1 == c && 1 == len)
426: putchar((int)*seq);
1.132 kristaps 427: break;
1.156 schwarze 428: case ESCAPE_NOSPACE:
1.132 kristaps 429: if ('\0' == *p)
430: nospace = 1;
1.88 kristaps 431: break;
1.82 kristaps 432: default:
433: break;
434: }
1.32 kristaps 435: }
1.85 kristaps 436:
437: return(nospace);
1.14 kristaps 438: }
439:
1.94 kristaps 440: static void
441: print_attr(struct html *h, const char *key, const char *val)
442: {
443: printf(" %s=\"", key);
444: (void)print_encode(h, val, 1);
445: putchar('\"');
446: }
447:
1.51 kristaps 448: struct tag *
1.156 schwarze 449: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 450: int sz, const struct htmlpair *p)
1.14 kristaps 451: {
1.29 kristaps 452: int i;
1.30 kristaps 453: struct tag *t;
454:
1.94 kristaps 455: /* Push this tags onto the stack of open scopes. */
456:
1.30 kristaps 457: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 458: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 459: t->tag = tag;
1.66 kristaps 460: t->next = h->tags.head;
461: h->tags.head = t;
1.30 kristaps 462: } else
463: t = NULL;
1.29 kristaps 464:
465: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 466: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
467: /* Manage keeps! */
468: if ( ! (HTML_KEEP & h->flags)) {
469: if (HTML_PREKEEP & h->flags)
470: h->flags |= HTML_KEEP;
471: putchar(' ');
472: } else
473: printf(" ");
474: }
1.29 kristaps 475:
1.109 kristaps 476: if ( ! (h->flags & HTML_NONOSPACE))
477: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 478: else
479: h->flags |= HTML_NOSPACE;
1.109 kristaps 480:
1.94 kristaps 481: /* Print out the tag name and attributes. */
482:
1.29 kristaps 483: printf("<%s", htmltags[tag].name);
1.94 kristaps 484: for (i = 0; i < sz; i++)
485: print_attr(h, htmlattrs[p[i].key], p[i].val);
486:
487: /* Add non-overridable attributes. */
488:
489: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
490: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
491: print_attr(h, "xml:lang", "en");
492: print_attr(h, "lang", "en");
1.29 kristaps 493: }
1.93 kristaps 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: const char *doctype;
531: const char *dtd;
1.96 kristaps 532: const char *name;
1.93 kristaps 533:
534: switch (h->type) {
1.156 schwarze 535: case HTML_HTML_4_01_STRICT:
1.96 kristaps 536: name = "HTML";
1.93 kristaps 537: doctype = "-//W3C//DTD HTML 4.01//EN";
538: dtd = "http://www.w3.org/TR/html4/strict.dtd";
539: break;
540: default:
1.141 kristaps 541: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 542: name = "html";
1.93 kristaps 543: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
544: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
545: break;
546: }
547:
1.156 schwarze 548: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
549: name, doctype, dtd);
1.1 kristaps 550: }
551:
1.51 kristaps 552: void
1.104 kristaps 553: print_text(struct html *h, const char *word)
1.1 kristaps 554: {
555:
1.105 kristaps 556: if ( ! (HTML_NOSPACE & h->flags)) {
557: /* Manage keeps! */
558: if ( ! (HTML_KEEP & h->flags)) {
559: if (HTML_PREKEEP & h->flags)
560: h->flags |= HTML_KEEP;
561: putchar(' ');
562: } else
563: printf(" ");
564: }
1.30 kristaps 565:
1.122 kristaps 566: assert(NULL == h->metaf);
1.152 schwarze 567: switch (h->metac) {
1.156 schwarze 568: case HTMLFONT_ITALIC:
1.152 schwarze 569: h->metaf = print_otag(h, TAG_I, 0, NULL);
570: break;
1.156 schwarze 571: case HTMLFONT_BOLD:
1.152 schwarze 572: h->metaf = print_otag(h, TAG_B, 0, NULL);
573: break;
1.156 schwarze 574: case HTMLFONT_BI:
1.152 schwarze 575: h->metaf = print_otag(h, TAG_B, 0, NULL);
576: print_otag(h, TAG_I, 0, NULL);
577: break;
578: default:
579: break;
580: }
1.122 kristaps 581:
1.104 kristaps 582: assert(word);
1.149 kristaps 583: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 584: if ( ! (h->flags & HTML_NONOSPACE))
585: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 586: } else
587: h->flags |= HTML_NOSPACE;
1.122 kristaps 588:
589: if (h->metaf) {
590: print_tagq(h, h->metaf);
591: h->metaf = NULL;
592: }
1.113 schwarze 593:
594: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 595: }
1.30 kristaps 596:
1.51 kristaps 597: void
1.30 kristaps 598: print_tagq(struct html *h, const struct tag *until)
599: {
600: struct tag *tag;
601:
1.66 kristaps 602: while ((tag = h->tags.head) != NULL) {
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: if (until && tag == until)
615: return;
616: }
617: }
618:
1.51 kristaps 619: void
1.30 kristaps 620: print_stagq(struct html *h, const struct tag *suntil)
621: {
622: struct tag *tag;
623:
1.66 kristaps 624: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 625: if (suntil && tag == suntil)
626: return;
1.156 schwarze 627: /*
1.125 kristaps 628: * Remember to close out and nullify the current
629: * meta-font and table, if applicable.
630: */
1.89 kristaps 631: if (tag == h->metaf)
632: h->metaf = NULL;
1.125 kristaps 633: if (tag == h->tblt)
634: h->tblt = NULL;
1.30 kristaps 635: print_ctag(h, tag->tag);
1.66 kristaps 636: h->tags.head = tag->next;
1.30 kristaps 637: free(tag);
638: }
639: }
1.55 kristaps 640:
641: void
642: bufinit(struct html *h)
643: {
644:
645: h->buf[0] = '\0';
646: h->buflen = 0;
647: }
648:
649: void
1.58 kristaps 650: bufcat_style(struct html *h, const char *key, const char *val)
651: {
652:
653: bufcat(h, key);
1.141 kristaps 654: bufcat(h, ":");
1.58 kristaps 655: bufcat(h, val);
1.141 kristaps 656: bufcat(h, ";");
1.58 kristaps 657: }
658:
659: void
1.55 kristaps 660: bufcat(struct html *h, const char *p)
661: {
1.157 schwarze 662:
663: /*
664: * XXX This is broken and not easy to fix.
665: * When using the -Oincludes option, buffmt_includes()
666: * may pass in strings overrunning BUFSIZ, causing a crash.
667: */
1.55 kristaps 668:
1.141 kristaps 669: h->buflen = strlcat(h->buf, p, BUFSIZ);
670: assert(h->buflen < BUFSIZ);
1.55 kristaps 671: }
672:
673: void
1.141 kristaps 674: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 675: {
676: va_list ap;
677:
678: va_start(ap, fmt);
1.156 schwarze 679: (void)vsnprintf(h->buf + (int)h->buflen,
680: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 681: va_end(ap);
682: h->buflen = strlen(h->buf);
683: }
684:
1.141 kristaps 685: static void
1.55 kristaps 686: bufncat(struct html *h, const char *p, size_t sz)
687: {
688:
1.141 kristaps 689: assert(h->buflen + sz + 1 < BUFSIZ);
690: strncat(h->buf, p, sz);
1.55 kristaps 691: h->buflen += sz;
692: }
693:
694: void
695: buffmt_includes(struct html *h, const char *name)
696: {
697: const char *p, *pp;
698:
699: pp = h->base_includes;
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'I':
1.55 kristaps 706: bufcat(h, name);
707: break;
708: default:
709: bufncat(h, p, 2);
710: break;
711: }
712: pp = p + 2;
713: }
714: if (pp)
715: bufcat(h, pp);
716: }
717:
718: void
1.156 schwarze 719: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 720: {
721: const char *p, *pp;
722:
723: pp = h->base_man;
1.156 schwarze 724:
1.143 kristaps 725: bufinit(h);
1.61 kristaps 726: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 727: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 728: switch (*(p + 1)) {
1.156 schwarze 729: case 'S':
1.58 kristaps 730: bufcat(h, sec ? sec : "1");
1.55 kristaps 731: break;
1.156 schwarze 732: case 'N':
1.153 joerg 733: bufcat_fmt(h, "%s", name);
1.55 kristaps 734: break;
735: default:
736: bufncat(h, p, 2);
737: break;
738: }
739: pp = p + 2;
740: }
741: if (pp)
742: bufcat(h, pp);
743: }
1.58 kristaps 744:
745: void
746: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
747: {
1.62 kristaps 748: double v;
1.58 kristaps 749:
750: v = su->scale;
1.140 kristaps 751: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
752: v = 1.0;
1.58 kristaps 753:
1.141 kristaps 754: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 755: }
1.68 kristaps 756:
757: void
1.142 kristaps 758: bufcat_id(struct html *h, const char *src)
1.68 kristaps 759: {
760:
761: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
762:
1.142 kristaps 763: while ('\0' != *src)
764: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 765: }
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