Annotation of mandoc/html.c, Revision 1.189
1.189 ! schwarze 1: /* $Id: html.c,v 1.188 2015/10/06 18:32:19 schwarze Exp $ */
1.1 kristaps 2: /*
1.176 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.185 schwarze 4: * Copyright (c) 2011-2015 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: *
1.186 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.29 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.186 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.29 kristaps 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"
1.58 kristaps 33: #include "out.h"
1.51 kristaps 34: #include "html.h"
1.186 schwarze 35: #include "manconf.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);
1.184 schwarze 125: static void print_ctag(struct html *, struct tag *);
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 *);
1.82 kristaps 130:
1.156 schwarze 131:
1.180 schwarze 132: void *
1.186 schwarze 133: html_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.10 kristaps 134: {
1.30 kristaps 135: struct html *h;
136:
1.128 kristaps 137: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 138:
1.66 kristaps 139: h->tags.head = NULL;
1.180 schwarze 140: h->symtab = mchars;
1.41 kristaps 141:
1.186 schwarze 142: h->style = outopts->style;
143: h->base_man = outopts->man;
144: h->base_includes = outopts->includes;
145: if (outopts->fragment)
146: h->oflags |= HTML_FRAGMENT;
1.43 kristaps 147:
1.188 schwarze 148: return h;
1.29 kristaps 149: }
1.10 kristaps 150:
1.29 kristaps 151: void
152: html_free(void *p)
153: {
1.30 kristaps 154: struct tag *tag;
155: struct html *h;
156:
157: h = (struct html *)p;
1.37 kristaps 158:
1.66 kristaps 159: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 160: h->tags.head = tag->next;
1.30 kristaps 161: free(tag);
162: }
1.53 kristaps 163:
1.30 kristaps 164: free(h);
1.10 kristaps 165: }
1.2 kristaps 166:
1.51 kristaps 167: void
1.29 kristaps 168: print_gen_head(struct html *h)
169: {
1.41 kristaps 170: struct htmlpair tag[4];
1.165 kristaps 171: struct tag *t;
1.41 kristaps 172:
1.164 kristaps 173: tag[0].key = ATTR_CHARSET;
174: tag[0].val = "utf-8";
175: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 176:
1.168 kristaps 177: /*
178: * Print a default style-sheet.
179: */
1.165 kristaps 180: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 181: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 182: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 183: "td.head-vol { text-align: center; }\n"
184: "table.foot td { width: 50%; }\n"
1.171 kristaps 185: "table.head td { width: 33%; }\n"
186: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 187: print_tagq(h, t);
1.41 kristaps 188:
189: if (h->style) {
190: tag[0].key = ATTR_REL;
191: tag[0].val = "stylesheet";
192: tag[1].key = ATTR_HREF;
193: tag[1].val = h->style;
194: tag[2].key = ATTR_TYPE;
195: tag[2].val = "text/css";
196: tag[3].key = ATTR_MEDIA;
197: tag[3].val = "all";
198: print_otag(h, TAG_LINK, 4, tag);
199: }
1.4 kristaps 200: }
201:
1.126 schwarze 202: static void
1.132 kristaps 203: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 204: {
1.90 kristaps 205: enum htmlfont font;
1.88 kristaps 206:
207: switch (deco) {
1.156 schwarze 208: case ESCAPE_FONTPREV:
1.90 kristaps 209: font = h->metal;
1.88 kristaps 210: break;
1.156 schwarze 211: case ESCAPE_FONTITALIC:
1.90 kristaps 212: font = HTMLFONT_ITALIC;
213: break;
1.156 schwarze 214: case ESCAPE_FONTBOLD:
1.90 kristaps 215: font = HTMLFONT_BOLD;
1.88 kristaps 216: break;
1.156 schwarze 217: case ESCAPE_FONTBI:
1.152 schwarze 218: font = HTMLFONT_BI;
219: break;
1.156 schwarze 220: case ESCAPE_FONT:
221: case ESCAPE_FONTROMAN:
1.90 kristaps 222: font = HTMLFONT_NONE;
1.88 kristaps 223: break;
224: default:
225: abort();
226: }
227:
1.122 kristaps 228: if (h->metaf) {
229: print_tagq(h, h->metaf);
230: h->metaf = NULL;
231: }
232:
233: h->metal = h->metac;
234: h->metac = font;
235:
1.152 schwarze 236: switch (font) {
1.156 schwarze 237: case HTMLFONT_ITALIC:
1.152 schwarze 238: h->metaf = print_otag(h, TAG_I, 0, NULL);
239: break;
1.156 schwarze 240: case HTMLFONT_BOLD:
1.152 schwarze 241: h->metaf = print_otag(h, TAG_B, 0, NULL);
242: break;
1.156 schwarze 243: case HTMLFONT_BI:
1.152 schwarze 244: h->metaf = print_otag(h, TAG_B, 0, NULL);
245: print_otag(h, TAG_I, 0, NULL);
246: break;
247: default:
248: break;
249: }
1.88 kristaps 250: }
251:
1.138 kristaps 252: int
253: html_strlen(const char *cp)
254: {
1.151 schwarze 255: size_t rsz;
256: int skip, sz;
1.138 kristaps 257:
258: /*
259: * Account for escaped sequences within string length
260: * calculations. This follows the logic in term_strlen() as we
261: * must calculate the width of produced strings.
262: * Assume that characters are always width of "1". This is
263: * hacky, but it gets the job done for approximation of widths.
264: */
265:
266: sz = 0;
1.151 schwarze 267: skip = 0;
268: while (1) {
269: rsz = strcspn(cp, "\\");
270: if (rsz) {
271: cp += rsz;
272: if (skip) {
273: skip = 0;
274: rsz--;
275: }
276: sz += rsz;
277: }
278: if ('\0' == *cp)
279: break;
280: cp++;
281: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 282: case ESCAPE_ERROR:
1.188 schwarze 283: return sz;
1.156 schwarze 284: case ESCAPE_UNICODE:
285: case ESCAPE_NUMBERED:
286: case ESCAPE_SPECIAL:
1.185 schwarze 287: case ESCAPE_OVERSTRIKE:
1.151 schwarze 288: if (skip)
289: skip = 0;
290: else
291: sz++;
292: break;
1.156 schwarze 293: case ESCAPE_SKIPCHAR:
1.151 schwarze 294: skip = 1;
1.138 kristaps 295: break;
296: default:
297: break;
298: }
299: }
1.188 schwarze 300: return sz;
1.138 kristaps 301: }
1.88 kristaps 302:
1.85 kristaps 303: static int
1.159 schwarze 304: print_escape(char c)
305: {
306:
307: switch (c) {
308: case '<':
309: printf("<");
310: break;
311: case '>':
312: printf(">");
313: break;
314: case '&':
315: printf("&");
316: break;
317: case '"':
318: printf(""");
319: break;
320: case ASCII_NBRSP:
321: putchar('-');
322: break;
323: case ASCII_HYPH:
324: putchar('-');
1.189 ! schwarze 325: break;
1.159 schwarze 326: case ASCII_BREAK:
327: break;
328: default:
1.188 schwarze 329: return 0;
1.159 schwarze 330: }
1.188 schwarze 331: return 1;
1.159 schwarze 332: }
333:
334: static int
1.88 kristaps 335: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 336: {
1.77 kristaps 337: size_t sz;
1.141 kristaps 338: int c, len, nospace;
1.82 kristaps 339: const char *seq;
1.132 kristaps 340: enum mandoc_esc esc;
1.158 schwarze 341: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 342: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 343:
1.85 kristaps 344: nospace = 0;
345:
1.132 kristaps 346: while ('\0' != *p) {
1.151 schwarze 347: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
348: h->flags &= ~HTML_SKIPCHAR;
349: p++;
350: continue;
351: }
352:
1.100 kristaps 353: sz = strcspn(p, rejs);
1.77 kristaps 354:
355: fwrite(p, 1, sz, stdout);
1.132 kristaps 356: p += (int)sz;
1.77 kristaps 357:
1.132 kristaps 358: if ('\0' == *p)
359: break;
360:
1.159 schwarze 361: if (print_escape(*p++))
1.154 schwarze 362: continue;
1.77 kristaps 363:
1.132 kristaps 364: esc = mandoc_escape(&p, &seq, &len);
365: if (ESCAPE_ERROR == esc)
366: break;
1.82 kristaps 367:
1.132 kristaps 368: switch (esc) {
1.156 schwarze 369: case ESCAPE_FONT:
370: case ESCAPE_FONTPREV:
371: case ESCAPE_FONTBOLD:
372: case ESCAPE_FONTITALIC:
373: case ESCAPE_FONTBI:
374: case ESCAPE_FONTROMAN:
1.151 schwarze 375: if (0 == norecurse)
376: print_metaf(h, esc);
377: continue;
1.156 schwarze 378: case ESCAPE_SKIPCHAR:
1.151 schwarze 379: h->flags |= HTML_SKIPCHAR;
380: continue;
381: default:
382: break;
383: }
384:
385: if (h->flags & HTML_SKIPCHAR) {
386: h->flags &= ~HTML_SKIPCHAR;
387: continue;
388: }
389:
390: switch (esc) {
1.156 schwarze 391: case ESCAPE_UNICODE:
1.159 schwarze 392: /* Skip past "u" header. */
1.144 kristaps 393: c = mchars_num2uc(seq + 1, len - 1);
394: break;
1.156 schwarze 395: case ESCAPE_NUMBERED:
1.141 kristaps 396: c = mchars_num2char(seq, len);
1.181 schwarze 397: if (c < 0)
398: continue;
1.82 kristaps 399: break;
1.156 schwarze 400: case ESCAPE_SPECIAL:
1.147 kristaps 401: c = mchars_spec2cp(h->symtab, seq, len);
1.181 schwarze 402: if (c <= 0)
403: continue;
1.132 kristaps 404: break;
1.156 schwarze 405: case ESCAPE_NOSPACE:
1.132 kristaps 406: if ('\0' == *p)
407: nospace = 1;
1.179 schwarze 408: continue;
1.185 schwarze 409: case ESCAPE_OVERSTRIKE:
410: if (len == 0)
411: continue;
412: c = seq[len - 1];
413: break;
1.82 kristaps 414: default:
1.179 schwarze 415: continue;
1.82 kristaps 416: }
1.181 schwarze 417: if ((c < 0x20 && c != 0x09) ||
418: (c > 0x7E && c < 0xA0))
1.179 schwarze 419: c = 0xFFFD;
420: if (c > 0x7E)
421: printf("&#%d;", c);
422: else if ( ! print_escape(c))
423: putchar(c);
1.32 kristaps 424: }
1.85 kristaps 425:
1.188 schwarze 426: return nospace;
1.14 kristaps 427: }
428:
1.94 kristaps 429: static void
430: print_attr(struct html *h, const char *key, const char *val)
431: {
432: printf(" %s=\"", key);
433: (void)print_encode(h, val, 1);
434: putchar('\"');
435: }
436:
1.51 kristaps 437: struct tag *
1.156 schwarze 438: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 439: int sz, const struct htmlpair *p)
1.14 kristaps 440: {
1.29 kristaps 441: int i;
1.30 kristaps 442: struct tag *t;
443:
1.94 kristaps 444: /* Push this tags onto the stack of open scopes. */
445:
1.30 kristaps 446: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 447: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 448: t->tag = tag;
1.66 kristaps 449: t->next = h->tags.head;
450: h->tags.head = t;
1.30 kristaps 451: } else
452: t = NULL;
1.29 kristaps 453:
454: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 455: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
456: /* Manage keeps! */
457: if ( ! (HTML_KEEP & h->flags)) {
458: if (HTML_PREKEEP & h->flags)
459: h->flags |= HTML_KEEP;
460: putchar(' ');
461: } else
462: printf(" ");
463: }
1.29 kristaps 464:
1.109 kristaps 465: if ( ! (h->flags & HTML_NONOSPACE))
466: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 467: else
468: h->flags |= HTML_NOSPACE;
1.109 kristaps 469:
1.94 kristaps 470: /* Print out the tag name and attributes. */
471:
1.29 kristaps 472: printf("<%s", htmltags[tag].name);
1.94 kristaps 473: for (i = 0; i < sz; i++)
474: print_attr(h, htmlattrs[p[i].key], p[i].val);
475:
1.172 kristaps 476: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 477:
1.93 kristaps 478: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 479: putchar('/');
1.93 kristaps 480:
1.78 kristaps 481: putchar('>');
1.14 kristaps 482:
1.29 kristaps 483: h->flags |= HTML_NOSPACE;
1.117 kristaps 484:
485: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
486: putchar('\n');
487:
1.188 schwarze 488: return t;
1.14 kristaps 489: }
490:
1.29 kristaps 491: static void
1.184 schwarze 492: print_ctag(struct html *h, struct tag *tag)
1.14 kristaps 493: {
1.156 schwarze 494:
1.184 schwarze 495: /*
496: * Remember to close out and nullify the current
497: * meta-font and table, if applicable.
498: */
499: if (tag == h->metaf)
500: h->metaf = NULL;
501: if (tag == h->tblt)
502: h->tblt = NULL;
503:
504: printf("</%s>", htmltags[tag->tag].name);
505: if (HTML_CLRLINE & htmltags[tag->tag].flags) {
1.29 kristaps 506: h->flags |= HTML_NOSPACE;
1.78 kristaps 507: putchar('\n');
1.156 schwarze 508: }
1.184 schwarze 509:
510: h->tags.head = tag->next;
511: free(tag);
1.14 kristaps 512: }
513:
1.51 kristaps 514: void
1.93 kristaps 515: print_gen_decls(struct html *h)
1.1 kristaps 516: {
1.93 kristaps 517:
1.164 kristaps 518: puts("<!DOCTYPE html>");
1.1 kristaps 519: }
520:
1.51 kristaps 521: void
1.104 kristaps 522: print_text(struct html *h, const char *word)
1.1 kristaps 523: {
524:
1.105 kristaps 525: if ( ! (HTML_NOSPACE & h->flags)) {
526: /* Manage keeps! */
527: if ( ! (HTML_KEEP & h->flags)) {
528: if (HTML_PREKEEP & h->flags)
529: h->flags |= HTML_KEEP;
530: putchar(' ');
531: } else
532: printf(" ");
533: }
1.30 kristaps 534:
1.122 kristaps 535: assert(NULL == h->metaf);
1.152 schwarze 536: switch (h->metac) {
1.156 schwarze 537: case HTMLFONT_ITALIC:
1.152 schwarze 538: h->metaf = print_otag(h, TAG_I, 0, NULL);
539: break;
1.156 schwarze 540: case HTMLFONT_BOLD:
1.152 schwarze 541: h->metaf = print_otag(h, TAG_B, 0, NULL);
542: break;
1.156 schwarze 543: case HTMLFONT_BI:
1.152 schwarze 544: h->metaf = print_otag(h, TAG_B, 0, NULL);
545: print_otag(h, TAG_I, 0, NULL);
546: break;
547: default:
548: break;
549: }
1.122 kristaps 550:
1.104 kristaps 551: assert(word);
1.149 kristaps 552: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 553: if ( ! (h->flags & HTML_NONOSPACE))
554: h->flags &= ~HTML_NOSPACE;
1.183 schwarze 555: h->flags &= ~HTML_NONEWLINE;
1.149 kristaps 556: } else
1.183 schwarze 557: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.122 kristaps 558:
559: if (h->metaf) {
560: print_tagq(h, h->metaf);
561: h->metaf = NULL;
562: }
1.113 schwarze 563:
564: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 565: }
1.30 kristaps 566:
1.51 kristaps 567: void
1.30 kristaps 568: print_tagq(struct html *h, const struct tag *until)
569: {
570: struct tag *tag;
571:
1.66 kristaps 572: while ((tag = h->tags.head) != NULL) {
1.184 schwarze 573: print_ctag(h, tag);
1.30 kristaps 574: if (until && tag == until)
575: return;
576: }
577: }
578:
1.51 kristaps 579: void
1.30 kristaps 580: print_stagq(struct html *h, const struct tag *suntil)
581: {
582: struct tag *tag;
583:
1.66 kristaps 584: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 585: if (suntil && tag == suntil)
586: return;
1.184 schwarze 587: print_ctag(h, tag);
1.30 kristaps 588: }
589: }
1.171 kristaps 590:
591: void
592: print_paragraph(struct html *h)
593: {
594: struct tag *t;
595: struct htmlpair tag;
596:
597: PAIR_CLASS_INIT(&tag, "spacer");
598: t = print_otag(h, TAG_DIV, 1, &tag);
599: print_tagq(h, t);
600: }
601:
1.55 kristaps 602:
603: void
604: bufinit(struct html *h)
605: {
606:
607: h->buf[0] = '\0';
608: h->buflen = 0;
609: }
610:
611: void
1.58 kristaps 612: bufcat_style(struct html *h, const char *key, const char *val)
613: {
614:
615: bufcat(h, key);
1.141 kristaps 616: bufcat(h, ":");
1.58 kristaps 617: bufcat(h, val);
1.141 kristaps 618: bufcat(h, ";");
1.58 kristaps 619: }
620:
621: void
1.55 kristaps 622: bufcat(struct html *h, const char *p)
623: {
1.157 schwarze 624:
625: /*
626: * XXX This is broken and not easy to fix.
627: * When using the -Oincludes option, buffmt_includes()
628: * may pass in strings overrunning BUFSIZ, causing a crash.
629: */
1.55 kristaps 630:
1.141 kristaps 631: h->buflen = strlcat(h->buf, p, BUFSIZ);
632: assert(h->buflen < BUFSIZ);
1.55 kristaps 633: }
634:
635: void
1.141 kristaps 636: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 637: {
638: va_list ap;
639:
640: va_start(ap, fmt);
1.156 schwarze 641: (void)vsnprintf(h->buf + (int)h->buflen,
642: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 643: va_end(ap);
644: h->buflen = strlen(h->buf);
645: }
646:
1.141 kristaps 647: static void
1.55 kristaps 648: bufncat(struct html *h, const char *p, size_t sz)
649: {
650:
1.141 kristaps 651: assert(h->buflen + sz + 1 < BUFSIZ);
652: strncat(h->buf, p, sz);
1.55 kristaps 653: h->buflen += sz;
654: }
655:
656: void
657: buffmt_includes(struct html *h, const char *name)
658: {
659: const char *p, *pp;
660:
661: pp = h->base_includes;
1.156 schwarze 662:
1.143 kristaps 663: bufinit(h);
1.61 kristaps 664: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 665: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 666: switch (*(p + 1)) {
1.156 schwarze 667: case'I':
1.55 kristaps 668: bufcat(h, name);
669: break;
670: default:
671: bufncat(h, p, 2);
672: break;
673: }
674: pp = p + 2;
675: }
676: if (pp)
677: bufcat(h, pp);
678: }
679:
680: void
1.156 schwarze 681: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 682: {
683: const char *p, *pp;
684:
685: pp = h->base_man;
1.156 schwarze 686:
1.143 kristaps 687: bufinit(h);
1.61 kristaps 688: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 689: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 690: switch (*(p + 1)) {
1.156 schwarze 691: case 'S':
1.58 kristaps 692: bufcat(h, sec ? sec : "1");
1.55 kristaps 693: break;
1.156 schwarze 694: case 'N':
1.153 joerg 695: bufcat_fmt(h, "%s", name);
1.55 kristaps 696: break;
697: default:
698: bufncat(h, p, 2);
699: break;
700: }
701: pp = p + 2;
702: }
703: if (pp)
704: bufcat(h, pp);
705: }
1.58 kristaps 706:
707: void
708: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
709: {
1.62 kristaps 710: double v;
1.58 kristaps 711:
712: v = su->scale;
1.140 kristaps 713: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
714: v = 1.0;
1.162 kristaps 715: else if (SCALE_BU == su->unit)
716: v /= 24.0;
1.58 kristaps 717:
1.141 kristaps 718: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 719: }
1.68 kristaps 720:
721: void
1.142 kristaps 722: bufcat_id(struct html *h, const char *src)
1.68 kristaps 723: {
724:
725: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
726:
1.142 kristaps 727: while ('\0' != *src)
728: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 729: }
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