Annotation of mandoc/html.c, Revision 1.156
1.156 ! schwarze 1: /* $Id: html.c,v 1.155 2014/03/23 11:25:26 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;
1.154 schwarze 333: static const char rejs[8] = { '\\', '<', '>', '&',
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("&");
1.34 kristaps 362: continue;
1.156 ! schwarze 363: case ASCII_NBRSP:
1.154 schwarze 364: putchar('-');
365: continue;
1.156 ! schwarze 366: case ASCII_HYPH:
1.100 kristaps 367: putchar('-');
1.154 schwarze 368: /* FALLTHROUGH */
1.156 ! schwarze 369: case ASCII_BREAK:
1.100 kristaps 370: continue;
1.132 kristaps 371: default:
1.77 kristaps 372: break;
1.132 kristaps 373: }
1.77 kristaps 374:
1.132 kristaps 375: esc = mandoc_escape(&p, &seq, &len);
376: if (ESCAPE_ERROR == esc)
377: break;
1.82 kristaps 378:
1.132 kristaps 379: switch (esc) {
1.156 ! schwarze 380: case ESCAPE_FONT:
1.151 schwarze 381: /* FALLTHROUGH */
1.156 ! schwarze 382: case ESCAPE_FONTPREV:
1.151 schwarze 383: /* FALLTHROUGH */
1.156 ! schwarze 384: case ESCAPE_FONTBOLD:
1.151 schwarze 385: /* FALLTHROUGH */
1.156 ! schwarze 386: case ESCAPE_FONTITALIC:
1.151 schwarze 387: /* FALLTHROUGH */
1.156 ! schwarze 388: case ESCAPE_FONTBI:
1.152 schwarze 389: /* FALLTHROUGH */
1.156 ! schwarze 390: case ESCAPE_FONTROMAN:
1.151 schwarze 391: if (0 == norecurse)
392: print_metaf(h, esc);
393: continue;
1.156 ! schwarze 394: case ESCAPE_SKIPCHAR:
1.151 schwarze 395: h->flags |= HTML_SKIPCHAR;
396: continue;
397: default:
398: break;
399: }
400:
401: if (h->flags & HTML_SKIPCHAR) {
402: h->flags &= ~HTML_SKIPCHAR;
403: continue;
404: }
405:
406: switch (esc) {
1.156 ! schwarze 407: case ESCAPE_UNICODE:
1.144 kristaps 408: /* Skip passed "u" header. */
409: c = mchars_num2uc(seq + 1, len - 1);
410: if ('\0' != c)
411: printf("&#x%x;", c);
412: break;
1.156 ! schwarze 413: case ESCAPE_NUMBERED:
1.141 kristaps 414: c = mchars_num2char(seq, len);
415: if ('\0' != c)
416: putchar(c);
1.82 kristaps 417: break;
1.156 ! schwarze 418: case ESCAPE_SPECIAL:
1.147 kristaps 419: c = mchars_spec2cp(h->symtab, seq, len);
420: if (c > 0)
421: printf("&#%d;", c);
422: else if (-1 == c && 1 == len)
423: putchar((int)*seq);
1.132 kristaps 424: break;
1.156 ! schwarze 425: case ESCAPE_NOSPACE:
1.132 kristaps 426: if ('\0' == *p)
427: nospace = 1;
1.88 kristaps 428: break;
1.82 kristaps 429: default:
430: break;
431: }
1.32 kristaps 432: }
1.85 kristaps 433:
434: return(nospace);
1.14 kristaps 435: }
436:
1.94 kristaps 437: static void
438: print_attr(struct html *h, const char *key, const char *val)
439: {
440: printf(" %s=\"", key);
441: (void)print_encode(h, val, 1);
442: putchar('\"');
443: }
444:
1.51 kristaps 445: struct tag *
1.156 ! schwarze 446: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 447: int sz, const struct htmlpair *p)
1.14 kristaps 448: {
1.29 kristaps 449: int i;
1.30 kristaps 450: struct tag *t;
451:
1.94 kristaps 452: /* Push this tags onto the stack of open scopes. */
453:
1.30 kristaps 454: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 455: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 456: t->tag = tag;
1.66 kristaps 457: t->next = h->tags.head;
458: h->tags.head = t;
1.30 kristaps 459: } else
460: t = NULL;
1.29 kristaps 461:
462: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 463: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
464: /* Manage keeps! */
465: if ( ! (HTML_KEEP & h->flags)) {
466: if (HTML_PREKEEP & h->flags)
467: h->flags |= HTML_KEEP;
468: putchar(' ');
469: } else
470: printf(" ");
471: }
1.29 kristaps 472:
1.109 kristaps 473: if ( ! (h->flags & HTML_NONOSPACE))
474: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 475: else
476: h->flags |= HTML_NOSPACE;
1.109 kristaps 477:
1.94 kristaps 478: /* Print out the tag name and attributes. */
479:
1.29 kristaps 480: printf("<%s", htmltags[tag].name);
1.94 kristaps 481: for (i = 0; i < sz; i++)
482: print_attr(h, htmlattrs[p[i].key], p[i].val);
483:
484: /* Add non-overridable attributes. */
485:
486: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
487: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
488: print_attr(h, "xml:lang", "en");
489: print_attr(h, "lang", "en");
1.29 kristaps 490: }
1.93 kristaps 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: const char *doctype;
528: const char *dtd;
1.96 kristaps 529: const char *name;
1.93 kristaps 530:
531: switch (h->type) {
1.156 ! schwarze 532: case HTML_HTML_4_01_STRICT:
1.96 kristaps 533: name = "HTML";
1.93 kristaps 534: doctype = "-//W3C//DTD HTML 4.01//EN";
535: dtd = "http://www.w3.org/TR/html4/strict.dtd";
536: break;
537: default:
1.141 kristaps 538: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 539: name = "html";
1.93 kristaps 540: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
541: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
542: break;
543: }
544:
1.156 ! schwarze 545: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
! 546: name, doctype, dtd);
1.1 kristaps 547: }
548:
1.51 kristaps 549: void
1.104 kristaps 550: print_text(struct html *h, const char *word)
1.1 kristaps 551: {
552:
1.105 kristaps 553: if ( ! (HTML_NOSPACE & h->flags)) {
554: /* Manage keeps! */
555: if ( ! (HTML_KEEP & h->flags)) {
556: if (HTML_PREKEEP & h->flags)
557: h->flags |= HTML_KEEP;
558: putchar(' ');
559: } else
560: printf(" ");
561: }
1.30 kristaps 562:
1.122 kristaps 563: assert(NULL == h->metaf);
1.152 schwarze 564: switch (h->metac) {
1.156 ! schwarze 565: case HTMLFONT_ITALIC:
1.152 schwarze 566: h->metaf = print_otag(h, TAG_I, 0, NULL);
567: break;
1.156 ! schwarze 568: case HTMLFONT_BOLD:
1.152 schwarze 569: h->metaf = print_otag(h, TAG_B, 0, NULL);
570: break;
1.156 ! schwarze 571: case HTMLFONT_BI:
1.152 schwarze 572: h->metaf = print_otag(h, TAG_B, 0, NULL);
573: print_otag(h, TAG_I, 0, NULL);
574: break;
575: default:
576: break;
577: }
1.122 kristaps 578:
1.104 kristaps 579: assert(word);
1.149 kristaps 580: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 581: if ( ! (h->flags & HTML_NONOSPACE))
582: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 583: } else
584: h->flags |= HTML_NOSPACE;
1.122 kristaps 585:
586: if (h->metaf) {
587: print_tagq(h, h->metaf);
588: h->metaf = NULL;
589: }
1.113 schwarze 590:
591: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 592: }
1.30 kristaps 593:
1.51 kristaps 594: void
1.30 kristaps 595: print_tagq(struct html *h, const struct tag *until)
596: {
597: struct tag *tag;
598:
1.66 kristaps 599: while ((tag = h->tags.head) != NULL) {
1.156 ! schwarze 600: /*
1.125 kristaps 601: * Remember to close out and nullify the current
602: * meta-font and table, if applicable.
603: */
1.89 kristaps 604: if (tag == h->metaf)
605: h->metaf = NULL;
1.125 kristaps 606: if (tag == h->tblt)
607: h->tblt = NULL;
1.30 kristaps 608: print_ctag(h, tag->tag);
1.66 kristaps 609: h->tags.head = tag->next;
1.30 kristaps 610: free(tag);
611: if (until && tag == until)
612: return;
613: }
614: }
615:
1.51 kristaps 616: void
1.30 kristaps 617: print_stagq(struct html *h, const struct tag *suntil)
618: {
619: struct tag *tag;
620:
1.66 kristaps 621: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 622: if (suntil && tag == suntil)
623: return;
1.156 ! schwarze 624: /*
1.125 kristaps 625: * Remember to close out and nullify the current
626: * meta-font and table, if applicable.
627: */
1.89 kristaps 628: if (tag == h->metaf)
629: h->metaf = NULL;
1.125 kristaps 630: if (tag == h->tblt)
631: h->tblt = NULL;
1.30 kristaps 632: print_ctag(h, tag->tag);
1.66 kristaps 633: h->tags.head = tag->next;
1.30 kristaps 634: free(tag);
635: }
636: }
1.55 kristaps 637:
638: void
639: bufinit(struct html *h)
640: {
641:
642: h->buf[0] = '\0';
643: h->buflen = 0;
644: }
645:
646: void
1.58 kristaps 647: bufcat_style(struct html *h, const char *key, const char *val)
648: {
649:
650: bufcat(h, key);
1.141 kristaps 651: bufcat(h, ":");
1.58 kristaps 652: bufcat(h, val);
1.141 kristaps 653: bufcat(h, ";");
1.58 kristaps 654: }
655:
656: void
1.55 kristaps 657: bufcat(struct html *h, const char *p)
658: {
659:
1.141 kristaps 660: h->buflen = strlcat(h->buf, p, BUFSIZ);
661: assert(h->buflen < BUFSIZ);
1.55 kristaps 662: }
663:
664: void
1.141 kristaps 665: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 666: {
667: va_list ap;
668:
669: va_start(ap, fmt);
1.156 ! schwarze 670: (void)vsnprintf(h->buf + (int)h->buflen,
! 671: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 672: va_end(ap);
673: h->buflen = strlen(h->buf);
674: }
675:
1.141 kristaps 676: static void
1.55 kristaps 677: bufncat(struct html *h, const char *p, size_t sz)
678: {
679:
1.141 kristaps 680: assert(h->buflen + sz + 1 < BUFSIZ);
681: strncat(h->buf, p, sz);
1.55 kristaps 682: h->buflen += sz;
683: }
684:
685: void
686: buffmt_includes(struct html *h, const char *name)
687: {
688: const char *p, *pp;
689:
690: pp = h->base_includes;
1.156 ! schwarze 691:
1.143 kristaps 692: bufinit(h);
1.61 kristaps 693: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 694: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 695: switch (*(p + 1)) {
1.156 ! schwarze 696: case'I':
1.55 kristaps 697: bufcat(h, name);
698: break;
699: default:
700: bufncat(h, p, 2);
701: break;
702: }
703: pp = p + 2;
704: }
705: if (pp)
706: bufcat(h, pp);
707: }
708:
709: void
1.156 ! schwarze 710: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 711: {
712: const char *p, *pp;
713:
714: pp = h->base_man;
1.156 ! schwarze 715:
1.143 kristaps 716: bufinit(h);
1.61 kristaps 717: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 718: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 719: switch (*(p + 1)) {
1.156 ! schwarze 720: case 'S':
1.58 kristaps 721: bufcat(h, sec ? sec : "1");
1.55 kristaps 722: break;
1.156 ! schwarze 723: case 'N':
1.153 joerg 724: bufcat_fmt(h, "%s", name);
1.55 kristaps 725: break;
726: default:
727: bufncat(h, p, 2);
728: break;
729: }
730: pp = p + 2;
731: }
732: if (pp)
733: bufcat(h, pp);
734: }
1.58 kristaps 735:
736: void
737: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
738: {
1.62 kristaps 739: double v;
1.58 kristaps 740:
741: v = su->scale;
1.140 kristaps 742: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
743: v = 1.0;
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: }
CVSweb