Annotation of mandoc/html.c, Revision 1.159
1.159 ! schwarze 1: /* $Id: html.c,v 1.158 2014/07/22 22:41:35 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);
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];
197:
198: tag[0].key = ATTR_HTTPEQUIV;
199: tag[0].val = "Content-Type";
200: tag[1].key = ATTR_CONTENT;
201: tag[1].val = "text/html; charset=utf-8";
202: print_otag(h, TAG_META, 2, tag);
203:
204: tag[0].key = ATTR_NAME;
205: tag[0].val = "resource-type";
206: tag[1].key = ATTR_CONTENT;
207: tag[1].val = "document";
208: print_otag(h, TAG_META, 2, tag);
209:
210: if (h->style) {
211: tag[0].key = ATTR_REL;
212: tag[0].val = "stylesheet";
213: tag[1].key = ATTR_HREF;
214: tag[1].val = h->style;
215: tag[2].key = ATTR_TYPE;
216: tag[2].val = "text/css";
217: tag[3].key = ATTR_MEDIA;
218: tag[3].val = "all";
219: print_otag(h, TAG_LINK, 4, tag);
220: }
1.4 kristaps 221: }
222:
1.126 schwarze 223: static void
1.132 kristaps 224: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 225: {
1.90 kristaps 226: enum htmlfont font;
1.88 kristaps 227:
228: switch (deco) {
1.156 schwarze 229: case ESCAPE_FONTPREV:
1.90 kristaps 230: font = h->metal;
1.88 kristaps 231: break;
1.156 schwarze 232: case ESCAPE_FONTITALIC:
1.90 kristaps 233: font = HTMLFONT_ITALIC;
234: break;
1.156 schwarze 235: case ESCAPE_FONTBOLD:
1.90 kristaps 236: font = HTMLFONT_BOLD;
1.88 kristaps 237: break;
1.156 schwarze 238: case ESCAPE_FONTBI:
1.152 schwarze 239: font = HTMLFONT_BI;
240: break;
1.156 schwarze 241: case ESCAPE_FONT:
1.145 kristaps 242: /* FALLTHROUGH */
1.156 schwarze 243: case ESCAPE_FONTROMAN:
1.90 kristaps 244: font = HTMLFONT_NONE;
1.88 kristaps 245: break;
246: default:
247: abort();
248: /* NOTREACHED */
249: }
250:
1.122 kristaps 251: if (h->metaf) {
252: print_tagq(h, h->metaf);
253: h->metaf = NULL;
254: }
255:
256: h->metal = h->metac;
257: h->metac = font;
258:
1.152 schwarze 259: switch (font) {
1.156 schwarze 260: case HTMLFONT_ITALIC:
1.152 schwarze 261: h->metaf = print_otag(h, TAG_I, 0, NULL);
262: break;
1.156 schwarze 263: case HTMLFONT_BOLD:
1.152 schwarze 264: h->metaf = print_otag(h, TAG_B, 0, NULL);
265: break;
1.156 schwarze 266: case HTMLFONT_BI:
1.152 schwarze 267: h->metaf = print_otag(h, TAG_B, 0, NULL);
268: print_otag(h, TAG_I, 0, NULL);
269: break;
270: default:
271: break;
272: }
1.88 kristaps 273: }
274:
1.138 kristaps 275: int
276: html_strlen(const char *cp)
277: {
1.151 schwarze 278: size_t rsz;
279: int skip, sz;
1.138 kristaps 280:
281: /*
282: * Account for escaped sequences within string length
283: * calculations. This follows the logic in term_strlen() as we
284: * must calculate the width of produced strings.
285: * Assume that characters are always width of "1". This is
286: * hacky, but it gets the job done for approximation of widths.
287: */
288:
289: sz = 0;
1.151 schwarze 290: skip = 0;
291: while (1) {
292: rsz = strcspn(cp, "\\");
293: if (rsz) {
294: cp += rsz;
295: if (skip) {
296: skip = 0;
297: rsz--;
298: }
299: sz += rsz;
300: }
301: if ('\0' == *cp)
302: break;
303: cp++;
304: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 305: case ESCAPE_ERROR:
1.138 kristaps 306: return(sz);
1.156 schwarze 307: case ESCAPE_UNICODE:
1.144 kristaps 308: /* FALLTHROUGH */
1.156 schwarze 309: case ESCAPE_NUMBERED:
1.139 kristaps 310: /* FALLTHROUGH */
1.156 schwarze 311: case ESCAPE_SPECIAL:
1.151 schwarze 312: if (skip)
313: skip = 0;
314: else
315: sz++;
316: break;
1.156 schwarze 317: case ESCAPE_SKIPCHAR:
1.151 schwarze 318: skip = 1;
1.138 kristaps 319: break;
320: default:
321: break;
322: }
323: }
1.151 schwarze 324: return(sz);
1.138 kristaps 325: }
1.88 kristaps 326:
1.85 kristaps 327: static int
1.159 ! schwarze 328: print_escape(char c)
! 329: {
! 330:
! 331: switch (c) {
! 332: case '<':
! 333: printf("<");
! 334: break;
! 335: case '>':
! 336: printf(">");
! 337: break;
! 338: case '&':
! 339: printf("&");
! 340: break;
! 341: case '"':
! 342: printf(""");
! 343: break;
! 344: case ASCII_NBRSP:
! 345: putchar('-');
! 346: break;
! 347: case ASCII_HYPH:
! 348: putchar('-');
! 349: /* FALLTHROUGH */
! 350: case ASCII_BREAK:
! 351: break;
! 352: default:
! 353: return(0);
! 354: }
! 355: return(1);
! 356: }
! 357:
! 358: static int
1.88 kristaps 359: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 360: {
1.77 kristaps 361: size_t sz;
1.141 kristaps 362: int c, len, nospace;
1.82 kristaps 363: const char *seq;
1.132 kristaps 364: enum mandoc_esc esc;
1.158 schwarze 365: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 366: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 367:
1.85 kristaps 368: nospace = 0;
369:
1.132 kristaps 370: while ('\0' != *p) {
1.151 schwarze 371: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
372: h->flags &= ~HTML_SKIPCHAR;
373: p++;
374: continue;
375: }
376:
1.100 kristaps 377: sz = strcspn(p, rejs);
1.77 kristaps 378:
379: fwrite(p, 1, sz, stdout);
1.132 kristaps 380: p += (int)sz;
1.77 kristaps 381:
1.132 kristaps 382: if ('\0' == *p)
383: break;
384:
1.159 ! schwarze 385: if (print_escape(*p++))
1.154 schwarze 386: continue;
1.77 kristaps 387:
1.132 kristaps 388: esc = mandoc_escape(&p, &seq, &len);
389: if (ESCAPE_ERROR == esc)
390: break;
1.82 kristaps 391:
1.132 kristaps 392: switch (esc) {
1.156 schwarze 393: case ESCAPE_FONT:
1.151 schwarze 394: /* FALLTHROUGH */
1.156 schwarze 395: case ESCAPE_FONTPREV:
1.151 schwarze 396: /* FALLTHROUGH */
1.156 schwarze 397: case ESCAPE_FONTBOLD:
1.151 schwarze 398: /* FALLTHROUGH */
1.156 schwarze 399: case ESCAPE_FONTITALIC:
1.151 schwarze 400: /* FALLTHROUGH */
1.156 schwarze 401: case ESCAPE_FONTBI:
1.152 schwarze 402: /* FALLTHROUGH */
1.156 schwarze 403: case ESCAPE_FONTROMAN:
1.151 schwarze 404: if (0 == norecurse)
405: print_metaf(h, esc);
406: continue;
1.156 schwarze 407: case ESCAPE_SKIPCHAR:
1.151 schwarze 408: h->flags |= HTML_SKIPCHAR;
409: continue;
410: default:
411: break;
412: }
413:
414: if (h->flags & HTML_SKIPCHAR) {
415: h->flags &= ~HTML_SKIPCHAR;
416: continue;
417: }
418:
419: switch (esc) {
1.156 schwarze 420: case ESCAPE_UNICODE:
1.159 ! schwarze 421: /* Skip past "u" header. */
1.144 kristaps 422: c = mchars_num2uc(seq + 1, len - 1);
423: if ('\0' != c)
424: printf("&#x%x;", c);
425: break;
1.156 schwarze 426: case ESCAPE_NUMBERED:
1.141 kristaps 427: c = mchars_num2char(seq, len);
1.159 ! schwarze 428: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 429: putchar(c);
1.82 kristaps 430: break;
1.156 schwarze 431: case ESCAPE_SPECIAL:
1.147 kristaps 432: c = mchars_spec2cp(h->symtab, seq, len);
433: if (c > 0)
434: printf("&#%d;", c);
1.159 ! schwarze 435: else if (-1 == c && 1 == len &&
! 436: !print_escape(*seq))
1.147 kristaps 437: putchar((int)*seq);
1.132 kristaps 438: break;
1.156 schwarze 439: case ESCAPE_NOSPACE:
1.132 kristaps 440: if ('\0' == *p)
441: nospace = 1;
1.88 kristaps 442: break;
1.82 kristaps 443: default:
444: break;
445: }
1.32 kristaps 446: }
1.85 kristaps 447:
448: return(nospace);
1.14 kristaps 449: }
450:
1.94 kristaps 451: static void
452: print_attr(struct html *h, const char *key, const char *val)
453: {
454: printf(" %s=\"", key);
455: (void)print_encode(h, val, 1);
456: putchar('\"');
457: }
458:
1.51 kristaps 459: struct tag *
1.156 schwarze 460: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 461: int sz, const struct htmlpair *p)
1.14 kristaps 462: {
1.29 kristaps 463: int i;
1.30 kristaps 464: struct tag *t;
465:
1.94 kristaps 466: /* Push this tags onto the stack of open scopes. */
467:
1.30 kristaps 468: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 469: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 470: t->tag = tag;
1.66 kristaps 471: t->next = h->tags.head;
472: h->tags.head = t;
1.30 kristaps 473: } else
474: t = NULL;
1.29 kristaps 475:
476: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 477: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
478: /* Manage keeps! */
479: if ( ! (HTML_KEEP & h->flags)) {
480: if (HTML_PREKEEP & h->flags)
481: h->flags |= HTML_KEEP;
482: putchar(' ');
483: } else
484: printf(" ");
485: }
1.29 kristaps 486:
1.109 kristaps 487: if ( ! (h->flags & HTML_NONOSPACE))
488: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 489: else
490: h->flags |= HTML_NOSPACE;
1.109 kristaps 491:
1.94 kristaps 492: /* Print out the tag name and attributes. */
493:
1.29 kristaps 494: printf("<%s", htmltags[tag].name);
1.94 kristaps 495: for (i = 0; i < sz; i++)
496: print_attr(h, htmlattrs[p[i].key], p[i].val);
497:
498: /* Add non-overridable attributes. */
499:
500: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
501: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
502: print_attr(h, "xml:lang", "en");
503: print_attr(h, "lang", "en");
1.29 kristaps 504: }
1.93 kristaps 505:
1.134 kristaps 506: /* Accommodate for XML "well-formed" singleton escaping. */
1.94 kristaps 507:
1.93 kristaps 508: if (HTML_AUTOCLOSE & htmltags[tag].flags)
509: switch (h->type) {
1.156 schwarze 510: case HTML_XHTML_1_0_STRICT:
1.93 kristaps 511: putchar('/');
512: break;
513: default:
514: break;
515: }
516:
1.78 kristaps 517: putchar('>');
1.14 kristaps 518:
1.29 kristaps 519: h->flags |= HTML_NOSPACE;
1.117 kristaps 520:
521: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
522: putchar('\n');
523:
1.30 kristaps 524: return(t);
1.14 kristaps 525: }
526:
1.29 kristaps 527: static void
528: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 529: {
1.156 schwarze 530:
1.29 kristaps 531: printf("</%s>", htmltags[tag].name);
1.71 kristaps 532: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 533: h->flags |= HTML_NOSPACE;
1.78 kristaps 534: putchar('\n');
1.156 schwarze 535: }
1.14 kristaps 536: }
537:
1.51 kristaps 538: void
1.93 kristaps 539: print_gen_decls(struct html *h)
1.1 kristaps 540: {
1.93 kristaps 541: const char *doctype;
542: const char *dtd;
1.96 kristaps 543: const char *name;
1.93 kristaps 544:
545: switch (h->type) {
1.156 schwarze 546: case HTML_HTML_4_01_STRICT:
1.96 kristaps 547: name = "HTML";
1.93 kristaps 548: doctype = "-//W3C//DTD HTML 4.01//EN";
549: dtd = "http://www.w3.org/TR/html4/strict.dtd";
550: break;
551: default:
1.141 kristaps 552: puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.96 kristaps 553: name = "html";
1.93 kristaps 554: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
555: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
556: break;
557: }
558:
1.156 schwarze 559: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
560: name, doctype, dtd);
1.1 kristaps 561: }
562:
1.51 kristaps 563: void
1.104 kristaps 564: print_text(struct html *h, const char *word)
1.1 kristaps 565: {
566:
1.105 kristaps 567: if ( ! (HTML_NOSPACE & h->flags)) {
568: /* Manage keeps! */
569: if ( ! (HTML_KEEP & h->flags)) {
570: if (HTML_PREKEEP & h->flags)
571: h->flags |= HTML_KEEP;
572: putchar(' ');
573: } else
574: printf(" ");
575: }
1.30 kristaps 576:
1.122 kristaps 577: assert(NULL == h->metaf);
1.152 schwarze 578: switch (h->metac) {
1.156 schwarze 579: case HTMLFONT_ITALIC:
1.152 schwarze 580: h->metaf = print_otag(h, TAG_I, 0, NULL);
581: break;
1.156 schwarze 582: case HTMLFONT_BOLD:
1.152 schwarze 583: h->metaf = print_otag(h, TAG_B, 0, NULL);
584: break;
1.156 schwarze 585: case HTMLFONT_BI:
1.152 schwarze 586: h->metaf = print_otag(h, TAG_B, 0, NULL);
587: print_otag(h, TAG_I, 0, NULL);
588: break;
589: default:
590: break;
591: }
1.122 kristaps 592:
1.104 kristaps 593: assert(word);
1.149 kristaps 594: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 595: if ( ! (h->flags & HTML_NONOSPACE))
596: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 597: } else
598: h->flags |= HTML_NOSPACE;
1.122 kristaps 599:
600: if (h->metaf) {
601: print_tagq(h, h->metaf);
602: h->metaf = NULL;
603: }
1.113 schwarze 604:
605: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 606: }
1.30 kristaps 607:
1.51 kristaps 608: void
1.30 kristaps 609: print_tagq(struct html *h, const struct tag *until)
610: {
611: struct tag *tag;
612:
1.66 kristaps 613: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 614: /*
1.125 kristaps 615: * Remember to close out and nullify the current
616: * meta-font and table, if applicable.
617: */
1.89 kristaps 618: if (tag == h->metaf)
619: h->metaf = NULL;
1.125 kristaps 620: if (tag == h->tblt)
621: h->tblt = NULL;
1.30 kristaps 622: print_ctag(h, tag->tag);
1.66 kristaps 623: h->tags.head = tag->next;
1.30 kristaps 624: free(tag);
625: if (until && tag == until)
626: return;
627: }
628: }
629:
1.51 kristaps 630: void
1.30 kristaps 631: print_stagq(struct html *h, const struct tag *suntil)
632: {
633: struct tag *tag;
634:
1.66 kristaps 635: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 636: if (suntil && tag == suntil)
637: return;
1.156 schwarze 638: /*
1.125 kristaps 639: * Remember to close out and nullify the current
640: * meta-font and table, if applicable.
641: */
1.89 kristaps 642: if (tag == h->metaf)
643: h->metaf = NULL;
1.125 kristaps 644: if (tag == h->tblt)
645: h->tblt = NULL;
1.30 kristaps 646: print_ctag(h, tag->tag);
1.66 kristaps 647: h->tags.head = tag->next;
1.30 kristaps 648: free(tag);
649: }
650: }
1.55 kristaps 651:
652: void
653: bufinit(struct html *h)
654: {
655:
656: h->buf[0] = '\0';
657: h->buflen = 0;
658: }
659:
660: void
1.58 kristaps 661: bufcat_style(struct html *h, const char *key, const char *val)
662: {
663:
664: bufcat(h, key);
1.141 kristaps 665: bufcat(h, ":");
1.58 kristaps 666: bufcat(h, val);
1.141 kristaps 667: bufcat(h, ";");
1.58 kristaps 668: }
669:
670: void
1.55 kristaps 671: bufcat(struct html *h, const char *p)
672: {
1.157 schwarze 673:
674: /*
675: * XXX This is broken and not easy to fix.
676: * When using the -Oincludes option, buffmt_includes()
677: * may pass in strings overrunning BUFSIZ, causing a crash.
678: */
1.55 kristaps 679:
1.141 kristaps 680: h->buflen = strlcat(h->buf, p, BUFSIZ);
681: assert(h->buflen < BUFSIZ);
1.55 kristaps 682: }
683:
684: void
1.141 kristaps 685: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 686: {
687: va_list ap;
688:
689: va_start(ap, fmt);
1.156 schwarze 690: (void)vsnprintf(h->buf + (int)h->buflen,
691: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 692: va_end(ap);
693: h->buflen = strlen(h->buf);
694: }
695:
1.141 kristaps 696: static void
1.55 kristaps 697: bufncat(struct html *h, const char *p, size_t sz)
698: {
699:
1.141 kristaps 700: assert(h->buflen + sz + 1 < BUFSIZ);
701: strncat(h->buf, p, sz);
1.55 kristaps 702: h->buflen += sz;
703: }
704:
705: void
706: buffmt_includes(struct html *h, const char *name)
707: {
708: const char *p, *pp;
709:
710: pp = h->base_includes;
1.156 schwarze 711:
1.143 kristaps 712: bufinit(h);
1.61 kristaps 713: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 714: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 715: switch (*(p + 1)) {
1.156 schwarze 716: case'I':
1.55 kristaps 717: bufcat(h, name);
718: break;
719: default:
720: bufncat(h, p, 2);
721: break;
722: }
723: pp = p + 2;
724: }
725: if (pp)
726: bufcat(h, pp);
727: }
728:
729: void
1.156 schwarze 730: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 731: {
732: const char *p, *pp;
733:
734: pp = h->base_man;
1.156 schwarze 735:
1.143 kristaps 736: bufinit(h);
1.61 kristaps 737: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 738: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 739: switch (*(p + 1)) {
1.156 schwarze 740: case 'S':
1.58 kristaps 741: bufcat(h, sec ? sec : "1");
1.55 kristaps 742: break;
1.156 schwarze 743: case 'N':
1.153 joerg 744: bufcat_fmt(h, "%s", name);
1.55 kristaps 745: break;
746: default:
747: bufncat(h, p, 2);
748: break;
749: }
750: pp = p + 2;
751: }
752: if (pp)
753: bufcat(h, pp);
754: }
1.58 kristaps 755:
756: void
757: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
758: {
1.62 kristaps 759: double v;
1.58 kristaps 760:
761: v = su->scale;
1.140 kristaps 762: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
763: v = 1.0;
1.58 kristaps 764:
1.141 kristaps 765: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 766: }
1.68 kristaps 767:
768: void
1.142 kristaps 769: bufcat_id(struct html *h, const char *src)
1.68 kristaps 770: {
771:
772: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
773:
1.142 kristaps 774: while ('\0' != *src)
775: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 776: }
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