Annotation of mandoc/html.c, Revision 1.178
1.178 ! schwarze 1: /* $Id: html.c,v 1.177 2014/10/26 17:12:03 schwarze Exp $ */
1.1 kristaps 2: /*
1.176 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.154 schwarze 4: * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.29 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.29 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.92 kristaps 18: #include "config.h"
19:
1.41 kristaps 20: #include <sys/types.h>
1.30 kristaps 21:
1.1 kristaps 22: #include <assert.h>
1.68 kristaps 23: #include <ctype.h>
1.76 kristaps 24: #include <stdarg.h>
1.29 kristaps 25: #include <stdio.h>
1.63 kristaps 26: #include <stdint.h>
1.1 kristaps 27: #include <stdlib.h>
1.33 kristaps 28: #include <string.h>
1.45 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.100 kristaps 31: #include "mandoc.h"
1.155 schwarze 32: #include "mandoc_aux.h"
1.138 kristaps 33: #include "libmandoc.h"
1.58 kristaps 34: #include "out.h"
1.51 kristaps 35: #include "html.h"
1.64 kristaps 36: #include "main.h"
1.63 kristaps 37:
1.29 kristaps 38: struct htmldata {
1.63 kristaps 39: const char *name;
1.29 kristaps 40: int flags;
1.30 kristaps 41: #define HTML_CLRLINE (1 << 0)
42: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 43: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 44: };
1.7 kristaps 45:
1.29 kristaps 46: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 47: {"html", HTML_CLRLINE}, /* TAG_HTML */
48: {"head", HTML_CLRLINE}, /* TAG_HEAD */
49: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 50: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 51: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 52: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 53: {"h1", 0}, /* TAG_H1 */
54: {"h2", 0}, /* TAG_H2 */
55: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 56: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 57: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 58: {"a", 0}, /* TAG_A */
1.33 kristaps 59: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 60: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 61: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 62: {"tr", HTML_CLRLINE}, /* TAG_TR */
63: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 64: {"li", HTML_CLRLINE}, /* TAG_LI */
65: {"ul", HTML_CLRLINE}, /* TAG_UL */
66: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 67: {"dl", HTML_CLRLINE}, /* TAG_DL */
68: {"dt", HTML_CLRLINE}, /* TAG_DT */
69: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 70: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.118 kristaps 71: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 72: {"b", 0 }, /* TAG_B */
1.120 kristaps 73: {"i", 0 }, /* TAG_I */
1.121 kristaps 74: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 75: {"small", 0 }, /* TAG_SMALL */
1.165 kristaps 76: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.173 kristaps 77: {"math", HTML_CLRLINE}, /* TAG_MATH */
78: {"mrow", 0}, /* TAG_MROW */
79: {"mi", 0}, /* TAG_MI */
80: {"mo", 0}, /* TAG_MO */
81: {"msup", 0}, /* TAG_MSUP */
82: {"msub", 0}, /* TAG_MSUB */
83: {"msubsup", 0}, /* TAG_MSUBSUP */
84: {"mfrac", 0}, /* TAG_MFRAC */
85: {"msqrt", 0}, /* TAG_MSQRT */
86: {"mfenced", 0}, /* TAG_MFENCED */
87: {"mtable", 0}, /* TAG_MTABLE */
88: {"mtr", 0}, /* TAG_MTR */
89: {"mtd", 0}, /* TAG_MTD */
1.174 kristaps 90: {"munderover", 0}, /* TAG_MUNDEROVER */
91: {"munder", 0}, /* TAG_MUNDER*/
92: {"mover", 0}, /* TAG_MOVER*/
1.90 kristaps 93: };
94:
1.82 kristaps 95: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 96: "name", /* ATTR_NAME */
97: "rel", /* ATTR_REL */
98: "href", /* ATTR_HREF */
99: "type", /* ATTR_TYPE */
100: "media", /* ATTR_MEDIA */
101: "class", /* ATTR_CLASS */
102: "style", /* ATTR_STYLE */
103: "id", /* ATTR_ID */
1.125 kristaps 104: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 105: "charset", /* ATTR_CHARSET */
1.173 kristaps 106: "open", /* ATTR_OPEN */
107: "close", /* ATTR_CLOSE */
1.175 kristaps 108: "mathvariant", /* ATTR_MATHVARIANT */
1.29 kristaps 109: };
1.10 kristaps 110:
1.140 kristaps 111: static const char *const roffscales[SCALE_MAX] = {
112: "cm", /* SCALE_CM */
113: "in", /* SCALE_IN */
114: "pc", /* SCALE_PC */
115: "pt", /* SCALE_PT */
116: "em", /* SCALE_EM */
117: "em", /* SCALE_MM */
118: "ex", /* SCALE_EN */
119: "ex", /* SCALE_BU */
120: "em", /* SCALE_VS */
121: "ex", /* SCALE_FS */
122: };
123:
1.141 kristaps 124: static void bufncat(struct html *, const char *, size_t);
125: static void print_ctag(struct html *, enum htmltag);
1.159 schwarze 126: static int print_escape(char);
1.141 kristaps 127: static int print_encode(struct html *, const char *, int);
128: static void print_metaf(struct html *, enum mandoc_esc);
129: static void print_attr(struct html *, const char *, const char *);
1.172 kristaps 130: static void *ml_alloc(char *);
1.82 kristaps 131:
1.156 schwarze 132:
1.93 kristaps 133: static void *
1.172 kristaps 134: ml_alloc(char *outopts)
1.10 kristaps 135: {
1.30 kristaps 136: struct html *h;
1.150 kristaps 137: const char *toks[5];
1.63 kristaps 138: char *v;
1.43 kristaps 139:
140: toks[0] = "style";
1.53 kristaps 141: toks[1] = "man";
1.54 kristaps 142: toks[2] = "includes";
1.150 kristaps 143: toks[3] = "fragment";
144: toks[4] = NULL;
1.30 kristaps 145:
1.128 kristaps 146: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 147:
1.66 kristaps 148: h->tags.head = NULL;
1.136 kristaps 149: h->symtab = mchars_alloc();
1.41 kristaps 150:
1.47 kristaps 151: while (outopts && *outopts)
1.63 kristaps 152: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 153: case 0:
1.43 kristaps 154: h->style = v;
155: break;
1.156 schwarze 156: case 1:
1.53 kristaps 157: h->base_man = v;
1.43 kristaps 158: break;
1.156 schwarze 159: case 2:
1.54 kristaps 160: h->base_includes = v;
1.150 kristaps 161: break;
1.156 schwarze 162: case 3:
1.150 kristaps 163: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 164: break;
1.43 kristaps 165: default:
166: break;
167: }
168:
1.30 kristaps 169: return(h);
1.29 kristaps 170: }
1.10 kristaps 171:
1.93 kristaps 172: void *
173: html_alloc(char *outopts)
174: {
175:
1.172 kristaps 176: return(ml_alloc(outopts));
1.93 kristaps 177: }
178:
179: void *
180: xhtml_alloc(char *outopts)
181: {
182:
1.172 kristaps 183: return(ml_alloc(outopts));
1.93 kristaps 184: }
185:
1.29 kristaps 186: void
187: html_free(void *p)
188: {
1.30 kristaps 189: struct tag *tag;
190: struct html *h;
191:
192: h = (struct html *)p;
1.37 kristaps 193:
1.66 kristaps 194: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 195: h->tags.head = tag->next;
1.30 kristaps 196: free(tag);
197: }
1.156 schwarze 198:
1.36 kristaps 199: if (h->symtab)
1.133 kristaps 200: mchars_free(h->symtab);
1.53 kristaps 201:
1.30 kristaps 202: free(h);
1.10 kristaps 203: }
1.2 kristaps 204:
1.51 kristaps 205: void
1.29 kristaps 206: print_gen_head(struct html *h)
207: {
1.41 kristaps 208: struct htmlpair tag[4];
1.165 kristaps 209: struct tag *t;
1.41 kristaps 210:
1.164 kristaps 211: tag[0].key = ATTR_CHARSET;
212: tag[0].val = "utf-8";
213: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 214:
1.168 kristaps 215: /*
216: * Print a default style-sheet.
217: */
1.165 kristaps 218: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 219: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 220: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 221: "td.head-vol { text-align: center; }\n"
222: "table.foot td { width: 50%; }\n"
1.171 kristaps 223: "table.head td { width: 33%; }\n"
224: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 225: print_tagq(h, t);
1.41 kristaps 226:
227: if (h->style) {
228: tag[0].key = ATTR_REL;
229: tag[0].val = "stylesheet";
230: tag[1].key = ATTR_HREF;
231: tag[1].val = h->style;
232: tag[2].key = ATTR_TYPE;
233: tag[2].val = "text/css";
234: tag[3].key = ATTR_MEDIA;
235: tag[3].val = "all";
236: print_otag(h, TAG_LINK, 4, tag);
237: }
1.4 kristaps 238: }
239:
1.126 schwarze 240: static void
1.132 kristaps 241: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 242: {
1.90 kristaps 243: enum htmlfont font;
1.88 kristaps 244:
245: switch (deco) {
1.156 schwarze 246: case ESCAPE_FONTPREV:
1.90 kristaps 247: font = h->metal;
1.88 kristaps 248: break;
1.156 schwarze 249: case ESCAPE_FONTITALIC:
1.90 kristaps 250: font = HTMLFONT_ITALIC;
251: break;
1.156 schwarze 252: case ESCAPE_FONTBOLD:
1.90 kristaps 253: font = HTMLFONT_BOLD;
1.88 kristaps 254: break;
1.156 schwarze 255: case ESCAPE_FONTBI:
1.152 schwarze 256: font = HTMLFONT_BI;
257: break;
1.156 schwarze 258: case ESCAPE_FONT:
1.145 kristaps 259: /* FALLTHROUGH */
1.156 schwarze 260: case ESCAPE_FONTROMAN:
1.90 kristaps 261: font = HTMLFONT_NONE;
1.88 kristaps 262: break;
263: default:
264: abort();
265: /* NOTREACHED */
266: }
267:
1.122 kristaps 268: if (h->metaf) {
269: print_tagq(h, h->metaf);
270: h->metaf = NULL;
271: }
272:
273: h->metal = h->metac;
274: h->metac = font;
275:
1.152 schwarze 276: switch (font) {
1.156 schwarze 277: case HTMLFONT_ITALIC:
1.152 schwarze 278: h->metaf = print_otag(h, TAG_I, 0, NULL);
279: break;
1.156 schwarze 280: case HTMLFONT_BOLD:
1.152 schwarze 281: h->metaf = print_otag(h, TAG_B, 0, NULL);
282: break;
1.156 schwarze 283: case HTMLFONT_BI:
1.152 schwarze 284: h->metaf = print_otag(h, TAG_B, 0, NULL);
285: print_otag(h, TAG_I, 0, NULL);
286: break;
287: default:
288: break;
289: }
1.88 kristaps 290: }
291:
1.138 kristaps 292: int
293: html_strlen(const char *cp)
294: {
1.151 schwarze 295: size_t rsz;
296: int skip, sz;
1.138 kristaps 297:
298: /*
299: * Account for escaped sequences within string length
300: * calculations. This follows the logic in term_strlen() as we
301: * must calculate the width of produced strings.
302: * Assume that characters are always width of "1". This is
303: * hacky, but it gets the job done for approximation of widths.
304: */
305:
306: sz = 0;
1.151 schwarze 307: skip = 0;
308: while (1) {
309: rsz = strcspn(cp, "\\");
310: if (rsz) {
311: cp += rsz;
312: if (skip) {
313: skip = 0;
314: rsz--;
315: }
316: sz += rsz;
317: }
318: if ('\0' == *cp)
319: break;
320: cp++;
321: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 322: case ESCAPE_ERROR:
1.138 kristaps 323: return(sz);
1.156 schwarze 324: case ESCAPE_UNICODE:
1.144 kristaps 325: /* FALLTHROUGH */
1.156 schwarze 326: case ESCAPE_NUMBERED:
1.139 kristaps 327: /* FALLTHROUGH */
1.156 schwarze 328: case ESCAPE_SPECIAL:
1.151 schwarze 329: if (skip)
330: skip = 0;
331: else
332: sz++;
333: break;
1.156 schwarze 334: case ESCAPE_SKIPCHAR:
1.151 schwarze 335: skip = 1;
1.138 kristaps 336: break;
337: default:
338: break;
339: }
340: }
1.151 schwarze 341: return(sz);
1.138 kristaps 342: }
1.88 kristaps 343:
1.85 kristaps 344: static int
1.159 schwarze 345: print_escape(char c)
346: {
347:
348: switch (c) {
349: case '<':
350: printf("<");
351: break;
352: case '>':
353: printf(">");
354: break;
355: case '&':
356: printf("&");
357: break;
358: case '"':
359: printf(""");
360: break;
361: case ASCII_NBRSP:
362: putchar('-');
363: break;
364: case ASCII_HYPH:
365: putchar('-');
366: /* FALLTHROUGH */
367: case ASCII_BREAK:
368: break;
369: default:
370: return(0);
371: }
372: return(1);
373: }
374:
375: static int
1.88 kristaps 376: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 377: {
1.77 kristaps 378: size_t sz;
1.141 kristaps 379: int c, len, nospace;
1.82 kristaps 380: const char *seq;
1.132 kristaps 381: enum mandoc_esc esc;
1.158 schwarze 382: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 383: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 384:
1.85 kristaps 385: nospace = 0;
386:
1.132 kristaps 387: while ('\0' != *p) {
1.151 schwarze 388: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
389: h->flags &= ~HTML_SKIPCHAR;
390: p++;
391: continue;
392: }
393:
1.100 kristaps 394: sz = strcspn(p, rejs);
1.77 kristaps 395:
396: fwrite(p, 1, sz, stdout);
1.132 kristaps 397: p += (int)sz;
1.77 kristaps 398:
1.132 kristaps 399: if ('\0' == *p)
400: break;
401:
1.159 schwarze 402: if (print_escape(*p++))
1.154 schwarze 403: continue;
1.77 kristaps 404:
1.132 kristaps 405: esc = mandoc_escape(&p, &seq, &len);
406: if (ESCAPE_ERROR == esc)
407: break;
1.82 kristaps 408:
1.132 kristaps 409: switch (esc) {
1.156 schwarze 410: case ESCAPE_FONT:
1.151 schwarze 411: /* FALLTHROUGH */
1.156 schwarze 412: case ESCAPE_FONTPREV:
1.151 schwarze 413: /* FALLTHROUGH */
1.156 schwarze 414: case ESCAPE_FONTBOLD:
1.151 schwarze 415: /* FALLTHROUGH */
1.156 schwarze 416: case ESCAPE_FONTITALIC:
1.151 schwarze 417: /* FALLTHROUGH */
1.156 schwarze 418: case ESCAPE_FONTBI:
1.152 schwarze 419: /* FALLTHROUGH */
1.156 schwarze 420: case ESCAPE_FONTROMAN:
1.151 schwarze 421: if (0 == norecurse)
422: print_metaf(h, esc);
423: continue;
1.156 schwarze 424: case ESCAPE_SKIPCHAR:
1.151 schwarze 425: h->flags |= HTML_SKIPCHAR;
426: continue;
427: default:
428: break;
429: }
430:
431: if (h->flags & HTML_SKIPCHAR) {
432: h->flags &= ~HTML_SKIPCHAR;
433: continue;
434: }
435:
436: switch (esc) {
1.156 schwarze 437: case ESCAPE_UNICODE:
1.159 schwarze 438: /* Skip past "u" header. */
1.144 kristaps 439: c = mchars_num2uc(seq + 1, len - 1);
1.177 schwarze 440:
441: /*
442: * XXX Security warning:
443: * For now, forbid Unicode obfuscation of ASCII
444: * characters. An audit of the callers is
445: * required before this can be removed.
446: */
447:
448: if (c < 0x80)
449: c = 0xFFFD;
450:
451: printf("&#x%x;", c);
1.144 kristaps 452: break;
1.156 schwarze 453: case ESCAPE_NUMBERED:
1.141 kristaps 454: c = mchars_num2char(seq, len);
1.159 schwarze 455: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 456: putchar(c);
1.82 kristaps 457: break;
1.156 schwarze 458: case ESCAPE_SPECIAL:
1.147 kristaps 459: c = mchars_spec2cp(h->symtab, seq, len);
1.178 ! schwarze 460: if (c <= 0)
! 461: break;
! 462: if (c < 0x20 || c > 0x7e)
1.147 kristaps 463: printf("&#%d;", c);
1.178 ! schwarze 464: else if ( ! print_escape(c))
! 465: putchar(c);
1.132 kristaps 466: break;
1.156 schwarze 467: case ESCAPE_NOSPACE:
1.132 kristaps 468: if ('\0' == *p)
469: nospace = 1;
1.88 kristaps 470: break;
1.82 kristaps 471: default:
472: break;
473: }
1.32 kristaps 474: }
1.85 kristaps 475:
476: return(nospace);
1.14 kristaps 477: }
478:
1.94 kristaps 479: static void
480: print_attr(struct html *h, const char *key, const char *val)
481: {
482: printf(" %s=\"", key);
483: (void)print_encode(h, val, 1);
484: putchar('\"');
485: }
486:
1.51 kristaps 487: struct tag *
1.156 schwarze 488: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 489: int sz, const struct htmlpair *p)
1.14 kristaps 490: {
1.29 kristaps 491: int i;
1.30 kristaps 492: struct tag *t;
493:
1.94 kristaps 494: /* Push this tags onto the stack of open scopes. */
495:
1.30 kristaps 496: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 497: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 498: t->tag = tag;
1.66 kristaps 499: t->next = h->tags.head;
500: h->tags.head = t;
1.30 kristaps 501: } else
502: t = NULL;
1.29 kristaps 503:
504: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 505: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
506: /* Manage keeps! */
507: if ( ! (HTML_KEEP & h->flags)) {
508: if (HTML_PREKEEP & h->flags)
509: h->flags |= HTML_KEEP;
510: putchar(' ');
511: } else
512: printf(" ");
513: }
1.29 kristaps 514:
1.109 kristaps 515: if ( ! (h->flags & HTML_NONOSPACE))
516: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 517: else
518: h->flags |= HTML_NOSPACE;
1.109 kristaps 519:
1.94 kristaps 520: /* Print out the tag name and attributes. */
521:
1.29 kristaps 522: printf("<%s", htmltags[tag].name);
1.94 kristaps 523: for (i = 0; i < sz; i++)
524: print_attr(h, htmlattrs[p[i].key], p[i].val);
525:
1.172 kristaps 526: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 527:
1.93 kristaps 528: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 529: putchar('/');
1.93 kristaps 530:
1.78 kristaps 531: putchar('>');
1.14 kristaps 532:
1.29 kristaps 533: h->flags |= HTML_NOSPACE;
1.117 kristaps 534:
535: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
536: putchar('\n');
537:
1.30 kristaps 538: return(t);
1.14 kristaps 539: }
540:
1.29 kristaps 541: static void
542: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 543: {
1.156 schwarze 544:
1.29 kristaps 545: printf("</%s>", htmltags[tag].name);
1.71 kristaps 546: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 547: h->flags |= HTML_NOSPACE;
1.78 kristaps 548: putchar('\n');
1.156 schwarze 549: }
1.14 kristaps 550: }
551:
1.51 kristaps 552: void
1.93 kristaps 553: print_gen_decls(struct html *h)
1.1 kristaps 554: {
1.93 kristaps 555:
1.164 kristaps 556: puts("<!DOCTYPE html>");
1.1 kristaps 557: }
558:
1.51 kristaps 559: void
1.104 kristaps 560: print_text(struct html *h, const char *word)
1.1 kristaps 561: {
562:
1.105 kristaps 563: if ( ! (HTML_NOSPACE & h->flags)) {
564: /* Manage keeps! */
565: if ( ! (HTML_KEEP & h->flags)) {
566: if (HTML_PREKEEP & h->flags)
567: h->flags |= HTML_KEEP;
568: putchar(' ');
569: } else
570: printf(" ");
571: }
1.30 kristaps 572:
1.122 kristaps 573: assert(NULL == h->metaf);
1.152 schwarze 574: switch (h->metac) {
1.156 schwarze 575: case HTMLFONT_ITALIC:
1.152 schwarze 576: h->metaf = print_otag(h, TAG_I, 0, NULL);
577: break;
1.156 schwarze 578: case HTMLFONT_BOLD:
1.152 schwarze 579: h->metaf = print_otag(h, TAG_B, 0, NULL);
580: break;
1.156 schwarze 581: case HTMLFONT_BI:
1.152 schwarze 582: h->metaf = print_otag(h, TAG_B, 0, NULL);
583: print_otag(h, TAG_I, 0, NULL);
584: break;
585: default:
586: break;
587: }
1.122 kristaps 588:
1.104 kristaps 589: assert(word);
1.149 kristaps 590: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 591: if ( ! (h->flags & HTML_NONOSPACE))
592: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 593: } else
594: h->flags |= HTML_NOSPACE;
1.122 kristaps 595:
596: if (h->metaf) {
597: print_tagq(h, h->metaf);
598: h->metaf = NULL;
599: }
1.113 schwarze 600:
601: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 602: }
1.30 kristaps 603:
1.51 kristaps 604: void
1.30 kristaps 605: print_tagq(struct html *h, const struct tag *until)
606: {
607: struct tag *tag;
608:
1.66 kristaps 609: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 610: /*
1.125 kristaps 611: * Remember to close out and nullify the current
612: * meta-font and table, if applicable.
613: */
1.89 kristaps 614: if (tag == h->metaf)
615: h->metaf = NULL;
1.125 kristaps 616: if (tag == h->tblt)
617: h->tblt = NULL;
1.30 kristaps 618: print_ctag(h, tag->tag);
1.66 kristaps 619: h->tags.head = tag->next;
1.30 kristaps 620: free(tag);
621: if (until && tag == until)
622: return;
623: }
624: }
625:
1.51 kristaps 626: void
1.30 kristaps 627: print_stagq(struct html *h, const struct tag *suntil)
628: {
629: struct tag *tag;
630:
1.66 kristaps 631: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 632: if (suntil && tag == suntil)
633: return;
1.156 schwarze 634: /*
1.125 kristaps 635: * Remember to close out and nullify the current
636: * meta-font and table, if applicable.
637: */
1.89 kristaps 638: if (tag == h->metaf)
639: h->metaf = NULL;
1.125 kristaps 640: if (tag == h->tblt)
641: h->tblt = NULL;
1.30 kristaps 642: print_ctag(h, tag->tag);
1.66 kristaps 643: h->tags.head = tag->next;
1.30 kristaps 644: free(tag);
645: }
646: }
1.171 kristaps 647:
648: void
649: print_paragraph(struct html *h)
650: {
651: struct tag *t;
652: struct htmlpair tag;
653:
654: PAIR_CLASS_INIT(&tag, "spacer");
655: t = print_otag(h, TAG_DIV, 1, &tag);
656: print_tagq(h, t);
657: }
658:
1.55 kristaps 659:
660: void
661: bufinit(struct html *h)
662: {
663:
664: h->buf[0] = '\0';
665: h->buflen = 0;
666: }
667:
668: void
1.58 kristaps 669: bufcat_style(struct html *h, const char *key, const char *val)
670: {
671:
672: bufcat(h, key);
1.141 kristaps 673: bufcat(h, ":");
1.58 kristaps 674: bufcat(h, val);
1.141 kristaps 675: bufcat(h, ";");
1.58 kristaps 676: }
677:
678: void
1.55 kristaps 679: bufcat(struct html *h, const char *p)
680: {
1.157 schwarze 681:
682: /*
683: * XXX This is broken and not easy to fix.
684: * When using the -Oincludes option, buffmt_includes()
685: * may pass in strings overrunning BUFSIZ, causing a crash.
686: */
1.55 kristaps 687:
1.141 kristaps 688: h->buflen = strlcat(h->buf, p, BUFSIZ);
689: assert(h->buflen < BUFSIZ);
1.55 kristaps 690: }
691:
692: void
1.141 kristaps 693: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 694: {
695: va_list ap;
696:
697: va_start(ap, fmt);
1.156 schwarze 698: (void)vsnprintf(h->buf + (int)h->buflen,
699: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 700: va_end(ap);
701: h->buflen = strlen(h->buf);
702: }
703:
1.141 kristaps 704: static void
1.55 kristaps 705: bufncat(struct html *h, const char *p, size_t sz)
706: {
707:
1.141 kristaps 708: assert(h->buflen + sz + 1 < BUFSIZ);
709: strncat(h->buf, p, sz);
1.55 kristaps 710: h->buflen += sz;
711: }
712:
713: void
714: buffmt_includes(struct html *h, const char *name)
715: {
716: const char *p, *pp;
717:
718: pp = h->base_includes;
1.156 schwarze 719:
1.143 kristaps 720: bufinit(h);
1.61 kristaps 721: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 722: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 723: switch (*(p + 1)) {
1.156 schwarze 724: case'I':
1.55 kristaps 725: bufcat(h, name);
726: break;
727: default:
728: bufncat(h, p, 2);
729: break;
730: }
731: pp = p + 2;
732: }
733: if (pp)
734: bufcat(h, pp);
735: }
736:
737: void
1.156 schwarze 738: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 739: {
740: const char *p, *pp;
741:
742: pp = h->base_man;
1.156 schwarze 743:
1.143 kristaps 744: bufinit(h);
1.61 kristaps 745: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 746: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 747: switch (*(p + 1)) {
1.156 schwarze 748: case 'S':
1.58 kristaps 749: bufcat(h, sec ? sec : "1");
1.55 kristaps 750: break;
1.156 schwarze 751: case 'N':
1.153 joerg 752: bufcat_fmt(h, "%s", name);
1.55 kristaps 753: break;
754: default:
755: bufncat(h, p, 2);
756: break;
757: }
758: pp = p + 2;
759: }
760: if (pp)
761: bufcat(h, pp);
762: }
1.58 kristaps 763:
764: void
765: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
766: {
1.62 kristaps 767: double v;
1.58 kristaps 768:
769: v = su->scale;
1.140 kristaps 770: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
771: v = 1.0;
1.162 kristaps 772: else if (SCALE_BU == su->unit)
773: v /= 24.0;
1.58 kristaps 774:
1.141 kristaps 775: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 776: }
1.68 kristaps 777:
778: void
1.142 kristaps 779: bufcat_id(struct html *h, const char *src)
1.68 kristaps 780: {
781:
782: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
783:
1.142 kristaps 784: while ('\0' != *src)
785: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 786: }
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