Annotation of mandoc/html.c, Revision 1.177
1.177 ! schwarze 1: /* $Id: html.c,v 1.176 2014/10/10 15:26:29 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);
460: if (c > 0)
461: printf("&#%d;", c);
1.159 schwarze 462: else if (-1 == c && 1 == len &&
463: !print_escape(*seq))
1.147 kristaps 464: putchar((int)*seq);
1.132 kristaps 465: break;
1.156 schwarze 466: case ESCAPE_NOSPACE:
1.132 kristaps 467: if ('\0' == *p)
468: nospace = 1;
1.88 kristaps 469: break;
1.82 kristaps 470: default:
471: break;
472: }
1.32 kristaps 473: }
1.85 kristaps 474:
475: return(nospace);
1.14 kristaps 476: }
477:
1.94 kristaps 478: static void
479: print_attr(struct html *h, const char *key, const char *val)
480: {
481: printf(" %s=\"", key);
482: (void)print_encode(h, val, 1);
483: putchar('\"');
484: }
485:
1.51 kristaps 486: struct tag *
1.156 schwarze 487: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 488: int sz, const struct htmlpair *p)
1.14 kristaps 489: {
1.29 kristaps 490: int i;
1.30 kristaps 491: struct tag *t;
492:
1.94 kristaps 493: /* Push this tags onto the stack of open scopes. */
494:
1.30 kristaps 495: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 496: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 497: t->tag = tag;
1.66 kristaps 498: t->next = h->tags.head;
499: h->tags.head = t;
1.30 kristaps 500: } else
501: t = NULL;
1.29 kristaps 502:
503: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 504: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
505: /* Manage keeps! */
506: if ( ! (HTML_KEEP & h->flags)) {
507: if (HTML_PREKEEP & h->flags)
508: h->flags |= HTML_KEEP;
509: putchar(' ');
510: } else
511: printf(" ");
512: }
1.29 kristaps 513:
1.109 kristaps 514: if ( ! (h->flags & HTML_NONOSPACE))
515: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 516: else
517: h->flags |= HTML_NOSPACE;
1.109 kristaps 518:
1.94 kristaps 519: /* Print out the tag name and attributes. */
520:
1.29 kristaps 521: printf("<%s", htmltags[tag].name);
1.94 kristaps 522: for (i = 0; i < sz; i++)
523: print_attr(h, htmlattrs[p[i].key], p[i].val);
524:
1.172 kristaps 525: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 526:
1.93 kristaps 527: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 528: putchar('/');
1.93 kristaps 529:
1.78 kristaps 530: putchar('>');
1.14 kristaps 531:
1.29 kristaps 532: h->flags |= HTML_NOSPACE;
1.117 kristaps 533:
534: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
535: putchar('\n');
536:
1.30 kristaps 537: return(t);
1.14 kristaps 538: }
539:
1.29 kristaps 540: static void
541: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 542: {
1.156 schwarze 543:
1.29 kristaps 544: printf("</%s>", htmltags[tag].name);
1.71 kristaps 545: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 546: h->flags |= HTML_NOSPACE;
1.78 kristaps 547: putchar('\n');
1.156 schwarze 548: }
1.14 kristaps 549: }
550:
1.51 kristaps 551: void
1.93 kristaps 552: print_gen_decls(struct html *h)
1.1 kristaps 553: {
1.93 kristaps 554:
1.164 kristaps 555: puts("<!DOCTYPE html>");
1.1 kristaps 556: }
557:
1.51 kristaps 558: void
1.104 kristaps 559: print_text(struct html *h, const char *word)
1.1 kristaps 560: {
561:
1.105 kristaps 562: if ( ! (HTML_NOSPACE & h->flags)) {
563: /* Manage keeps! */
564: if ( ! (HTML_KEEP & h->flags)) {
565: if (HTML_PREKEEP & h->flags)
566: h->flags |= HTML_KEEP;
567: putchar(' ');
568: } else
569: printf(" ");
570: }
1.30 kristaps 571:
1.122 kristaps 572: assert(NULL == h->metaf);
1.152 schwarze 573: switch (h->metac) {
1.156 schwarze 574: case HTMLFONT_ITALIC:
1.152 schwarze 575: h->metaf = print_otag(h, TAG_I, 0, NULL);
576: break;
1.156 schwarze 577: case HTMLFONT_BOLD:
1.152 schwarze 578: h->metaf = print_otag(h, TAG_B, 0, NULL);
579: break;
1.156 schwarze 580: case HTMLFONT_BI:
1.152 schwarze 581: h->metaf = print_otag(h, TAG_B, 0, NULL);
582: print_otag(h, TAG_I, 0, NULL);
583: break;
584: default:
585: break;
586: }
1.122 kristaps 587:
1.104 kristaps 588: assert(word);
1.149 kristaps 589: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 590: if ( ! (h->flags & HTML_NONOSPACE))
591: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 592: } else
593: h->flags |= HTML_NOSPACE;
1.122 kristaps 594:
595: if (h->metaf) {
596: print_tagq(h, h->metaf);
597: h->metaf = NULL;
598: }
1.113 schwarze 599:
600: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 601: }
1.30 kristaps 602:
1.51 kristaps 603: void
1.30 kristaps 604: print_tagq(struct html *h, const struct tag *until)
605: {
606: struct tag *tag;
607:
1.66 kristaps 608: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 609: /*
1.125 kristaps 610: * Remember to close out and nullify the current
611: * meta-font and table, if applicable.
612: */
1.89 kristaps 613: if (tag == h->metaf)
614: h->metaf = NULL;
1.125 kristaps 615: if (tag == h->tblt)
616: h->tblt = NULL;
1.30 kristaps 617: print_ctag(h, tag->tag);
1.66 kristaps 618: h->tags.head = tag->next;
1.30 kristaps 619: free(tag);
620: if (until && tag == until)
621: return;
622: }
623: }
624:
1.51 kristaps 625: void
1.30 kristaps 626: print_stagq(struct html *h, const struct tag *suntil)
627: {
628: struct tag *tag;
629:
1.66 kristaps 630: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 631: if (suntil && tag == suntil)
632: return;
1.156 schwarze 633: /*
1.125 kristaps 634: * Remember to close out and nullify the current
635: * meta-font and table, if applicable.
636: */
1.89 kristaps 637: if (tag == h->metaf)
638: h->metaf = NULL;
1.125 kristaps 639: if (tag == h->tblt)
640: h->tblt = NULL;
1.30 kristaps 641: print_ctag(h, tag->tag);
1.66 kristaps 642: h->tags.head = tag->next;
1.30 kristaps 643: free(tag);
644: }
645: }
1.171 kristaps 646:
647: void
648: print_paragraph(struct html *h)
649: {
650: struct tag *t;
651: struct htmlpair tag;
652:
653: PAIR_CLASS_INIT(&tag, "spacer");
654: t = print_otag(h, TAG_DIV, 1, &tag);
655: print_tagq(h, t);
656: }
657:
1.55 kristaps 658:
659: void
660: bufinit(struct html *h)
661: {
662:
663: h->buf[0] = '\0';
664: h->buflen = 0;
665: }
666:
667: void
1.58 kristaps 668: bufcat_style(struct html *h, const char *key, const char *val)
669: {
670:
671: bufcat(h, key);
1.141 kristaps 672: bufcat(h, ":");
1.58 kristaps 673: bufcat(h, val);
1.141 kristaps 674: bufcat(h, ";");
1.58 kristaps 675: }
676:
677: void
1.55 kristaps 678: bufcat(struct html *h, const char *p)
679: {
1.157 schwarze 680:
681: /*
682: * XXX This is broken and not easy to fix.
683: * When using the -Oincludes option, buffmt_includes()
684: * may pass in strings overrunning BUFSIZ, causing a crash.
685: */
1.55 kristaps 686:
1.141 kristaps 687: h->buflen = strlcat(h->buf, p, BUFSIZ);
688: assert(h->buflen < BUFSIZ);
1.55 kristaps 689: }
690:
691: void
1.141 kristaps 692: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 693: {
694: va_list ap;
695:
696: va_start(ap, fmt);
1.156 schwarze 697: (void)vsnprintf(h->buf + (int)h->buflen,
698: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 699: va_end(ap);
700: h->buflen = strlen(h->buf);
701: }
702:
1.141 kristaps 703: static void
1.55 kristaps 704: bufncat(struct html *h, const char *p, size_t sz)
705: {
706:
1.141 kristaps 707: assert(h->buflen + sz + 1 < BUFSIZ);
708: strncat(h->buf, p, sz);
1.55 kristaps 709: h->buflen += sz;
710: }
711:
712: void
713: buffmt_includes(struct html *h, const char *name)
714: {
715: const char *p, *pp;
716:
717: pp = h->base_includes;
1.156 schwarze 718:
1.143 kristaps 719: bufinit(h);
1.61 kristaps 720: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 721: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 722: switch (*(p + 1)) {
1.156 schwarze 723: case'I':
1.55 kristaps 724: bufcat(h, name);
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: }
735:
736: void
1.156 schwarze 737: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 738: {
739: const char *p, *pp;
740:
741: pp = h->base_man;
1.156 schwarze 742:
1.143 kristaps 743: bufinit(h);
1.61 kristaps 744: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 745: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 746: switch (*(p + 1)) {
1.156 schwarze 747: case 'S':
1.58 kristaps 748: bufcat(h, sec ? sec : "1");
1.55 kristaps 749: break;
1.156 schwarze 750: case 'N':
1.153 joerg 751: bufcat_fmt(h, "%s", name);
1.55 kristaps 752: break;
753: default:
754: bufncat(h, p, 2);
755: break;
756: }
757: pp = p + 2;
758: }
759: if (pp)
760: bufcat(h, pp);
761: }
1.58 kristaps 762:
763: void
764: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
765: {
1.62 kristaps 766: double v;
1.58 kristaps 767:
768: v = su->scale;
1.140 kristaps 769: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
770: v = 1.0;
1.162 kristaps 771: else if (SCALE_BU == su->unit)
772: v /= 24.0;
1.58 kristaps 773:
1.141 kristaps 774: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 775: }
1.68 kristaps 776:
777: void
1.142 kristaps 778: bufcat_id(struct html *h, const char *src)
1.68 kristaps 779: {
780:
781: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
782:
1.142 kristaps 783: while ('\0' != *src)
784: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 785: }
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