Annotation of mandoc/html.c, Revision 1.175
1.175 ! kristaps 1: /* $Id: html.c,v 1.174 2014/09/28 20:14:20 kristaps Exp $ */
1.1 kristaps 2: /*
1.172 kristaps 3: * Copyright (c) 2008, 2009, 2010, 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);
440: if ('\0' != c)
441: printf("&#x%x;", c);
442: break;
1.156 schwarze 443: case ESCAPE_NUMBERED:
1.141 kristaps 444: c = mchars_num2char(seq, len);
1.159 schwarze 445: if ( ! ('\0' == c || print_escape(c)))
1.141 kristaps 446: putchar(c);
1.82 kristaps 447: break;
1.156 schwarze 448: case ESCAPE_SPECIAL:
1.147 kristaps 449: c = mchars_spec2cp(h->symtab, seq, len);
450: if (c > 0)
451: printf("&#%d;", c);
1.159 schwarze 452: else if (-1 == c && 1 == len &&
453: !print_escape(*seq))
1.147 kristaps 454: putchar((int)*seq);
1.132 kristaps 455: break;
1.156 schwarze 456: case ESCAPE_NOSPACE:
1.132 kristaps 457: if ('\0' == *p)
458: nospace = 1;
1.88 kristaps 459: break;
1.82 kristaps 460: default:
461: break;
462: }
1.32 kristaps 463: }
1.85 kristaps 464:
465: return(nospace);
1.14 kristaps 466: }
467:
1.94 kristaps 468: static void
469: print_attr(struct html *h, const char *key, const char *val)
470: {
471: printf(" %s=\"", key);
472: (void)print_encode(h, val, 1);
473: putchar('\"');
474: }
475:
1.51 kristaps 476: struct tag *
1.156 schwarze 477: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 478: int sz, const struct htmlpair *p)
1.14 kristaps 479: {
1.29 kristaps 480: int i;
1.30 kristaps 481: struct tag *t;
482:
1.94 kristaps 483: /* Push this tags onto the stack of open scopes. */
484:
1.30 kristaps 485: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 486: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 487: t->tag = tag;
1.66 kristaps 488: t->next = h->tags.head;
489: h->tags.head = t;
1.30 kristaps 490: } else
491: t = NULL;
1.29 kristaps 492:
493: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 494: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
495: /* Manage keeps! */
496: if ( ! (HTML_KEEP & h->flags)) {
497: if (HTML_PREKEEP & h->flags)
498: h->flags |= HTML_KEEP;
499: putchar(' ');
500: } else
501: printf(" ");
502: }
1.29 kristaps 503:
1.109 kristaps 504: if ( ! (h->flags & HTML_NONOSPACE))
505: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 506: else
507: h->flags |= HTML_NOSPACE;
1.109 kristaps 508:
1.94 kristaps 509: /* Print out the tag name and attributes. */
510:
1.29 kristaps 511: printf("<%s", htmltags[tag].name);
1.94 kristaps 512: for (i = 0; i < sz; i++)
513: print_attr(h, htmlattrs[p[i].key], p[i].val);
514:
1.172 kristaps 515: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 516:
1.93 kristaps 517: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 518: putchar('/');
1.93 kristaps 519:
1.78 kristaps 520: putchar('>');
1.14 kristaps 521:
1.29 kristaps 522: h->flags |= HTML_NOSPACE;
1.117 kristaps 523:
524: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
525: putchar('\n');
526:
1.30 kristaps 527: return(t);
1.14 kristaps 528: }
529:
1.29 kristaps 530: static void
531: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 532: {
1.156 schwarze 533:
1.29 kristaps 534: printf("</%s>", htmltags[tag].name);
1.71 kristaps 535: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 536: h->flags |= HTML_NOSPACE;
1.78 kristaps 537: putchar('\n');
1.156 schwarze 538: }
1.14 kristaps 539: }
540:
1.51 kristaps 541: void
1.93 kristaps 542: print_gen_decls(struct html *h)
1.1 kristaps 543: {
1.93 kristaps 544:
1.164 kristaps 545: puts("<!DOCTYPE html>");
1.1 kristaps 546: }
547:
1.51 kristaps 548: void
1.104 kristaps 549: print_text(struct html *h, const char *word)
1.1 kristaps 550: {
551:
1.105 kristaps 552: if ( ! (HTML_NOSPACE & h->flags)) {
553: /* Manage keeps! */
554: if ( ! (HTML_KEEP & h->flags)) {
555: if (HTML_PREKEEP & h->flags)
556: h->flags |= HTML_KEEP;
557: putchar(' ');
558: } else
559: printf(" ");
560: }
1.30 kristaps 561:
1.122 kristaps 562: assert(NULL == h->metaf);
1.152 schwarze 563: switch (h->metac) {
1.156 schwarze 564: case HTMLFONT_ITALIC:
1.152 schwarze 565: h->metaf = print_otag(h, TAG_I, 0, NULL);
566: break;
1.156 schwarze 567: case HTMLFONT_BOLD:
1.152 schwarze 568: h->metaf = print_otag(h, TAG_B, 0, NULL);
569: break;
1.156 schwarze 570: case HTMLFONT_BI:
1.152 schwarze 571: h->metaf = print_otag(h, TAG_B, 0, NULL);
572: print_otag(h, TAG_I, 0, NULL);
573: break;
574: default:
575: break;
576: }
1.122 kristaps 577:
1.104 kristaps 578: assert(word);
1.149 kristaps 579: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 580: if ( ! (h->flags & HTML_NONOSPACE))
581: h->flags &= ~HTML_NOSPACE;
1.149 kristaps 582: } else
583: h->flags |= HTML_NOSPACE;
1.122 kristaps 584:
585: if (h->metaf) {
586: print_tagq(h, h->metaf);
587: h->metaf = NULL;
588: }
1.113 schwarze 589:
590: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 591: }
1.30 kristaps 592:
1.51 kristaps 593: void
1.30 kristaps 594: print_tagq(struct html *h, const struct tag *until)
595: {
596: struct tag *tag;
597:
1.66 kristaps 598: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 599: /*
1.125 kristaps 600: * Remember to close out and nullify the current
601: * meta-font and table, if applicable.
602: */
1.89 kristaps 603: if (tag == h->metaf)
604: h->metaf = NULL;
1.125 kristaps 605: if (tag == h->tblt)
606: h->tblt = NULL;
1.30 kristaps 607: print_ctag(h, tag->tag);
1.66 kristaps 608: h->tags.head = tag->next;
1.30 kristaps 609: free(tag);
610: if (until && tag == until)
611: return;
612: }
613: }
614:
1.51 kristaps 615: void
1.30 kristaps 616: print_stagq(struct html *h, const struct tag *suntil)
617: {
618: struct tag *tag;
619:
1.66 kristaps 620: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 621: if (suntil && tag == suntil)
622: return;
1.156 schwarze 623: /*
1.125 kristaps 624: * Remember to close out and nullify the current
625: * meta-font and table, if applicable.
626: */
1.89 kristaps 627: if (tag == h->metaf)
628: h->metaf = NULL;
1.125 kristaps 629: if (tag == h->tblt)
630: h->tblt = NULL;
1.30 kristaps 631: print_ctag(h, tag->tag);
1.66 kristaps 632: h->tags.head = tag->next;
1.30 kristaps 633: free(tag);
634: }
635: }
1.171 kristaps 636:
637: void
638: print_paragraph(struct html *h)
639: {
640: struct tag *t;
641: struct htmlpair tag;
642:
643: PAIR_CLASS_INIT(&tag, "spacer");
644: t = print_otag(h, TAG_DIV, 1, &tag);
645: print_tagq(h, t);
646: }
647:
1.55 kristaps 648:
649: void
650: bufinit(struct html *h)
651: {
652:
653: h->buf[0] = '\0';
654: h->buflen = 0;
655: }
656:
657: void
1.58 kristaps 658: bufcat_style(struct html *h, const char *key, const char *val)
659: {
660:
661: bufcat(h, key);
1.141 kristaps 662: bufcat(h, ":");
1.58 kristaps 663: bufcat(h, val);
1.141 kristaps 664: bufcat(h, ";");
1.58 kristaps 665: }
666:
667: void
1.55 kristaps 668: bufcat(struct html *h, const char *p)
669: {
1.157 schwarze 670:
671: /*
672: * XXX This is broken and not easy to fix.
673: * When using the -Oincludes option, buffmt_includes()
674: * may pass in strings overrunning BUFSIZ, causing a crash.
675: */
1.55 kristaps 676:
1.141 kristaps 677: h->buflen = strlcat(h->buf, p, BUFSIZ);
678: assert(h->buflen < BUFSIZ);
1.55 kristaps 679: }
680:
681: void
1.141 kristaps 682: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 683: {
684: va_list ap;
685:
686: va_start(ap, fmt);
1.156 schwarze 687: (void)vsnprintf(h->buf + (int)h->buflen,
688: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 689: va_end(ap);
690: h->buflen = strlen(h->buf);
691: }
692:
1.141 kristaps 693: static void
1.55 kristaps 694: bufncat(struct html *h, const char *p, size_t sz)
695: {
696:
1.141 kristaps 697: assert(h->buflen + sz + 1 < BUFSIZ);
698: strncat(h->buf, p, sz);
1.55 kristaps 699: h->buflen += sz;
700: }
701:
702: void
703: buffmt_includes(struct html *h, const char *name)
704: {
705: const char *p, *pp;
706:
707: pp = h->base_includes;
1.156 schwarze 708:
1.143 kristaps 709: bufinit(h);
1.61 kristaps 710: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 711: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 712: switch (*(p + 1)) {
1.156 schwarze 713: case'I':
1.55 kristaps 714: bufcat(h, name);
715: break;
716: default:
717: bufncat(h, p, 2);
718: break;
719: }
720: pp = p + 2;
721: }
722: if (pp)
723: bufcat(h, pp);
724: }
725:
726: void
1.156 schwarze 727: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 728: {
729: const char *p, *pp;
730:
731: pp = h->base_man;
1.156 schwarze 732:
1.143 kristaps 733: bufinit(h);
1.61 kristaps 734: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 735: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 736: switch (*(p + 1)) {
1.156 schwarze 737: case 'S':
1.58 kristaps 738: bufcat(h, sec ? sec : "1");
1.55 kristaps 739: break;
1.156 schwarze 740: case 'N':
1.153 joerg 741: bufcat_fmt(h, "%s", name);
1.55 kristaps 742: break;
743: default:
744: bufncat(h, p, 2);
745: break;
746: }
747: pp = p + 2;
748: }
749: if (pp)
750: bufcat(h, pp);
751: }
1.58 kristaps 752:
753: void
754: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
755: {
1.62 kristaps 756: double v;
1.58 kristaps 757:
758: v = su->scale;
1.140 kristaps 759: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
760: v = 1.0;
1.162 kristaps 761: else if (SCALE_BU == su->unit)
762: v /= 24.0;
1.58 kristaps 763:
1.141 kristaps 764: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 765: }
1.68 kristaps 766:
767: void
1.142 kristaps 768: bufcat_id(struct html *h, const char *src)
1.68 kristaps 769: {
770:
771: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
772:
1.142 kristaps 773: while ('\0' != *src)
774: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 775: }
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