Annotation of mandoc/html.c, Revision 1.193
1.193 ! schwarze 1: /* $Id: html.c,v 1.192 2016/01/04 12:45:29 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 *
1.191 schwarze 133: html_alloc(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;
1.186 schwarze 140: h->style = outopts->style;
141: h->base_man = outopts->man;
142: h->base_includes = outopts->includes;
143: if (outopts->fragment)
144: h->oflags |= HTML_FRAGMENT;
1.43 kristaps 145:
1.188 schwarze 146: return h;
1.29 kristaps 147: }
1.10 kristaps 148:
1.29 kristaps 149: void
150: html_free(void *p)
151: {
1.30 kristaps 152: struct tag *tag;
153: struct html *h;
154:
155: h = (struct html *)p;
1.37 kristaps 156:
1.66 kristaps 157: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 158: h->tags.head = tag->next;
1.30 kristaps 159: free(tag);
160: }
1.53 kristaps 161:
1.30 kristaps 162: free(h);
1.10 kristaps 163: }
1.2 kristaps 164:
1.51 kristaps 165: void
1.29 kristaps 166: print_gen_head(struct html *h)
167: {
1.41 kristaps 168: struct htmlpair tag[4];
1.165 kristaps 169: struct tag *t;
1.41 kristaps 170:
1.164 kristaps 171: tag[0].key = ATTR_CHARSET;
172: tag[0].val = "utf-8";
173: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 174:
1.168 kristaps 175: /*
176: * Print a default style-sheet.
177: */
1.165 kristaps 178: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 179: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 180: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 181: "td.head-vol { text-align: center; }\n"
182: "table.foot td { width: 50%; }\n"
1.171 kristaps 183: "table.head td { width: 33%; }\n"
184: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 185: print_tagq(h, t);
1.41 kristaps 186:
187: if (h->style) {
188: tag[0].key = ATTR_REL;
189: tag[0].val = "stylesheet";
190: tag[1].key = ATTR_HREF;
191: tag[1].val = h->style;
192: tag[2].key = ATTR_TYPE;
193: tag[2].val = "text/css";
194: tag[3].key = ATTR_MEDIA;
195: tag[3].val = "all";
196: print_otag(h, TAG_LINK, 4, tag);
197: }
1.4 kristaps 198: }
199:
1.126 schwarze 200: static void
1.132 kristaps 201: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 202: {
1.90 kristaps 203: enum htmlfont font;
1.88 kristaps 204:
205: switch (deco) {
1.156 schwarze 206: case ESCAPE_FONTPREV:
1.90 kristaps 207: font = h->metal;
1.88 kristaps 208: break;
1.156 schwarze 209: case ESCAPE_FONTITALIC:
1.90 kristaps 210: font = HTMLFONT_ITALIC;
211: break;
1.156 schwarze 212: case ESCAPE_FONTBOLD:
1.90 kristaps 213: font = HTMLFONT_BOLD;
1.88 kristaps 214: break;
1.156 schwarze 215: case ESCAPE_FONTBI:
1.152 schwarze 216: font = HTMLFONT_BI;
217: break;
1.156 schwarze 218: case ESCAPE_FONT:
219: case ESCAPE_FONTROMAN:
1.90 kristaps 220: font = HTMLFONT_NONE;
1.88 kristaps 221: break;
222: default:
223: abort();
224: }
225:
1.122 kristaps 226: if (h->metaf) {
227: print_tagq(h, h->metaf);
228: h->metaf = NULL;
229: }
230:
231: h->metal = h->metac;
232: h->metac = font;
233:
1.152 schwarze 234: switch (font) {
1.156 schwarze 235: case HTMLFONT_ITALIC:
1.152 schwarze 236: h->metaf = print_otag(h, TAG_I, 0, NULL);
237: break;
1.156 schwarze 238: case HTMLFONT_BOLD:
1.152 schwarze 239: h->metaf = print_otag(h, TAG_B, 0, NULL);
240: break;
1.156 schwarze 241: case HTMLFONT_BI:
1.152 schwarze 242: h->metaf = print_otag(h, TAG_B, 0, NULL);
243: print_otag(h, TAG_I, 0, NULL);
244: break;
245: default:
246: break;
247: }
1.88 kristaps 248: }
249:
1.138 kristaps 250: int
251: html_strlen(const char *cp)
252: {
1.151 schwarze 253: size_t rsz;
254: int skip, sz;
1.138 kristaps 255:
256: /*
257: * Account for escaped sequences within string length
258: * calculations. This follows the logic in term_strlen() as we
259: * must calculate the width of produced strings.
260: * Assume that characters are always width of "1". This is
261: * hacky, but it gets the job done for approximation of widths.
262: */
263:
264: sz = 0;
1.151 schwarze 265: skip = 0;
266: while (1) {
267: rsz = strcspn(cp, "\\");
268: if (rsz) {
269: cp += rsz;
270: if (skip) {
271: skip = 0;
272: rsz--;
273: }
274: sz += rsz;
275: }
276: if ('\0' == *cp)
277: break;
278: cp++;
279: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 280: case ESCAPE_ERROR:
1.188 schwarze 281: return sz;
1.156 schwarze 282: case ESCAPE_UNICODE:
283: case ESCAPE_NUMBERED:
284: case ESCAPE_SPECIAL:
1.185 schwarze 285: case ESCAPE_OVERSTRIKE:
1.151 schwarze 286: if (skip)
287: skip = 0;
288: else
289: sz++;
290: break;
1.156 schwarze 291: case ESCAPE_SKIPCHAR:
1.151 schwarze 292: skip = 1;
1.138 kristaps 293: break;
294: default:
295: break;
296: }
297: }
1.188 schwarze 298: return sz;
1.138 kristaps 299: }
1.88 kristaps 300:
1.85 kristaps 301: static int
1.159 schwarze 302: print_escape(char c)
303: {
304:
305: switch (c) {
306: case '<':
307: printf("<");
308: break;
309: case '>':
310: printf(">");
311: break;
312: case '&':
313: printf("&");
314: break;
315: case '"':
316: printf(""");
317: break;
318: case ASCII_NBRSP:
1.190 schwarze 319: printf(" ");
1.159 schwarze 320: break;
321: case ASCII_HYPH:
322: putchar('-');
1.189 schwarze 323: break;
1.159 schwarze 324: case ASCII_BREAK:
325: break;
326: default:
1.188 schwarze 327: return 0;
1.159 schwarze 328: }
1.188 schwarze 329: return 1;
1.159 schwarze 330: }
331:
332: static int
1.88 kristaps 333: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 334: {
1.77 kristaps 335: size_t sz;
1.141 kristaps 336: int c, len, nospace;
1.82 kristaps 337: const char *seq;
1.132 kristaps 338: enum mandoc_esc esc;
1.158 schwarze 339: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 340: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 341:
1.85 kristaps 342: nospace = 0;
343:
1.132 kristaps 344: while ('\0' != *p) {
1.151 schwarze 345: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
346: h->flags &= ~HTML_SKIPCHAR;
347: p++;
348: continue;
349: }
350:
1.100 kristaps 351: sz = strcspn(p, rejs);
1.77 kristaps 352:
353: fwrite(p, 1, sz, stdout);
1.132 kristaps 354: p += (int)sz;
1.77 kristaps 355:
1.132 kristaps 356: if ('\0' == *p)
357: break;
358:
1.159 schwarze 359: if (print_escape(*p++))
1.154 schwarze 360: continue;
1.77 kristaps 361:
1.132 kristaps 362: esc = mandoc_escape(&p, &seq, &len);
363: if (ESCAPE_ERROR == esc)
364: break;
1.82 kristaps 365:
1.132 kristaps 366: switch (esc) {
1.156 schwarze 367: case ESCAPE_FONT:
368: case ESCAPE_FONTPREV:
369: case ESCAPE_FONTBOLD:
370: case ESCAPE_FONTITALIC:
371: case ESCAPE_FONTBI:
372: case ESCAPE_FONTROMAN:
1.151 schwarze 373: if (0 == norecurse)
374: print_metaf(h, esc);
375: continue;
1.156 schwarze 376: case ESCAPE_SKIPCHAR:
1.151 schwarze 377: h->flags |= HTML_SKIPCHAR;
378: continue;
379: default:
380: break;
381: }
382:
383: if (h->flags & HTML_SKIPCHAR) {
384: h->flags &= ~HTML_SKIPCHAR;
385: continue;
386: }
387:
388: switch (esc) {
1.156 schwarze 389: case ESCAPE_UNICODE:
1.159 schwarze 390: /* Skip past "u" header. */
1.144 kristaps 391: c = mchars_num2uc(seq + 1, len - 1);
392: break;
1.156 schwarze 393: case ESCAPE_NUMBERED:
1.141 kristaps 394: c = mchars_num2char(seq, len);
1.181 schwarze 395: if (c < 0)
396: continue;
1.82 kristaps 397: break;
1.156 schwarze 398: case ESCAPE_SPECIAL:
1.191 schwarze 399: c = mchars_spec2cp(seq, len);
1.181 schwarze 400: if (c <= 0)
401: continue;
1.132 kristaps 402: break;
1.156 schwarze 403: case ESCAPE_NOSPACE:
1.132 kristaps 404: if ('\0' == *p)
405: nospace = 1;
1.179 schwarze 406: continue;
1.185 schwarze 407: case ESCAPE_OVERSTRIKE:
408: if (len == 0)
409: continue;
410: c = seq[len - 1];
411: break;
1.82 kristaps 412: default:
1.179 schwarze 413: continue;
1.82 kristaps 414: }
1.181 schwarze 415: if ((c < 0x20 && c != 0x09) ||
416: (c > 0x7E && c < 0xA0))
1.179 schwarze 417: c = 0xFFFD;
418: if (c > 0x7E)
419: printf("&#%d;", c);
420: else if ( ! print_escape(c))
421: putchar(c);
1.32 kristaps 422: }
1.85 kristaps 423:
1.188 schwarze 424: return nospace;
1.14 kristaps 425: }
426:
1.94 kristaps 427: static void
428: print_attr(struct html *h, const char *key, const char *val)
429: {
430: printf(" %s=\"", key);
431: (void)print_encode(h, val, 1);
432: putchar('\"');
433: }
434:
1.51 kristaps 435: struct tag *
1.156 schwarze 436: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 437: int sz, const struct htmlpair *p)
1.14 kristaps 438: {
1.29 kristaps 439: int i;
1.30 kristaps 440: struct tag *t;
441:
1.94 kristaps 442: /* Push this tags onto the stack of open scopes. */
443:
1.30 kristaps 444: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 445: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 446: t->tag = tag;
1.66 kristaps 447: t->next = h->tags.head;
448: h->tags.head = t;
1.30 kristaps 449: } else
450: t = NULL;
1.29 kristaps 451:
452: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 453: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
454: /* Manage keeps! */
455: if ( ! (HTML_KEEP & h->flags)) {
456: if (HTML_PREKEEP & h->flags)
457: h->flags |= HTML_KEEP;
458: putchar(' ');
459: } else
460: printf(" ");
461: }
1.29 kristaps 462:
1.109 kristaps 463: if ( ! (h->flags & HTML_NONOSPACE))
464: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 465: else
466: h->flags |= HTML_NOSPACE;
1.109 kristaps 467:
1.94 kristaps 468: /* Print out the tag name and attributes. */
469:
1.29 kristaps 470: printf("<%s", htmltags[tag].name);
1.94 kristaps 471: for (i = 0; i < sz; i++)
472: print_attr(h, htmlattrs[p[i].key], p[i].val);
473:
1.172 kristaps 474: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 475:
1.93 kristaps 476: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 477: putchar('/');
1.93 kristaps 478:
1.78 kristaps 479: putchar('>');
1.14 kristaps 480:
1.29 kristaps 481: h->flags |= HTML_NOSPACE;
1.117 kristaps 482:
483: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
484: putchar('\n');
485:
1.188 schwarze 486: return t;
1.14 kristaps 487: }
488:
1.29 kristaps 489: static void
1.184 schwarze 490: print_ctag(struct html *h, struct tag *tag)
1.14 kristaps 491: {
1.156 schwarze 492:
1.184 schwarze 493: /*
494: * Remember to close out and nullify the current
495: * meta-font and table, if applicable.
496: */
497: if (tag == h->metaf)
498: h->metaf = NULL;
499: if (tag == h->tblt)
500: h->tblt = NULL;
501:
502: printf("</%s>", htmltags[tag->tag].name);
503: if (HTML_CLRLINE & htmltags[tag->tag].flags) {
1.29 kristaps 504: h->flags |= HTML_NOSPACE;
1.78 kristaps 505: putchar('\n');
1.156 schwarze 506: }
1.184 schwarze 507:
508: h->tags.head = tag->next;
509: free(tag);
1.14 kristaps 510: }
511:
1.51 kristaps 512: void
1.93 kristaps 513: print_gen_decls(struct html *h)
1.1 kristaps 514: {
1.93 kristaps 515:
1.164 kristaps 516: puts("<!DOCTYPE html>");
1.1 kristaps 517: }
518:
1.51 kristaps 519: void
1.104 kristaps 520: print_text(struct html *h, const char *word)
1.1 kristaps 521: {
522:
1.105 kristaps 523: if ( ! (HTML_NOSPACE & h->flags)) {
524: /* Manage keeps! */
525: if ( ! (HTML_KEEP & h->flags)) {
526: if (HTML_PREKEEP & h->flags)
527: h->flags |= HTML_KEEP;
528: putchar(' ');
529: } else
530: printf(" ");
531: }
1.30 kristaps 532:
1.122 kristaps 533: assert(NULL == h->metaf);
1.152 schwarze 534: switch (h->metac) {
1.156 schwarze 535: case HTMLFONT_ITALIC:
1.152 schwarze 536: h->metaf = print_otag(h, TAG_I, 0, NULL);
537: break;
1.156 schwarze 538: case HTMLFONT_BOLD:
1.152 schwarze 539: h->metaf = print_otag(h, TAG_B, 0, NULL);
540: break;
1.156 schwarze 541: case HTMLFONT_BI:
1.152 schwarze 542: h->metaf = print_otag(h, TAG_B, 0, NULL);
543: print_otag(h, TAG_I, 0, NULL);
544: break;
545: default:
546: break;
547: }
1.122 kristaps 548:
1.104 kristaps 549: assert(word);
1.149 kristaps 550: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 551: if ( ! (h->flags & HTML_NONOSPACE))
552: h->flags &= ~HTML_NOSPACE;
1.183 schwarze 553: h->flags &= ~HTML_NONEWLINE;
1.149 kristaps 554: } else
1.183 schwarze 555: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.122 kristaps 556:
557: if (h->metaf) {
558: print_tagq(h, h->metaf);
559: h->metaf = NULL;
560: }
1.113 schwarze 561:
562: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 563: }
1.30 kristaps 564:
1.51 kristaps 565: void
1.30 kristaps 566: print_tagq(struct html *h, const struct tag *until)
567: {
568: struct tag *tag;
569:
1.66 kristaps 570: while ((tag = h->tags.head) != NULL) {
1.184 schwarze 571: print_ctag(h, tag);
1.30 kristaps 572: if (until && tag == until)
573: return;
574: }
575: }
576:
1.51 kristaps 577: void
1.30 kristaps 578: print_stagq(struct html *h, const struct tag *suntil)
579: {
580: struct tag *tag;
581:
1.66 kristaps 582: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 583: if (suntil && tag == suntil)
584: return;
1.184 schwarze 585: print_ctag(h, tag);
1.30 kristaps 586: }
587: }
1.171 kristaps 588:
589: void
590: print_paragraph(struct html *h)
591: {
592: struct tag *t;
593: struct htmlpair tag;
594:
595: PAIR_CLASS_INIT(&tag, "spacer");
596: t = print_otag(h, TAG_DIV, 1, &tag);
597: print_tagq(h, t);
598: }
599:
1.55 kristaps 600:
601: void
602: bufinit(struct html *h)
603: {
604:
605: h->buf[0] = '\0';
606: h->buflen = 0;
607: }
608:
609: void
1.58 kristaps 610: bufcat_style(struct html *h, const char *key, const char *val)
611: {
612:
613: bufcat(h, key);
1.141 kristaps 614: bufcat(h, ":");
1.58 kristaps 615: bufcat(h, val);
1.141 kristaps 616: bufcat(h, ";");
1.58 kristaps 617: }
618:
619: void
1.55 kristaps 620: bufcat(struct html *h, const char *p)
621: {
1.157 schwarze 622:
623: /*
624: * XXX This is broken and not easy to fix.
625: * When using the -Oincludes option, buffmt_includes()
626: * may pass in strings overrunning BUFSIZ, causing a crash.
627: */
1.55 kristaps 628:
1.141 kristaps 629: h->buflen = strlcat(h->buf, p, BUFSIZ);
630: assert(h->buflen < BUFSIZ);
1.55 kristaps 631: }
632:
633: void
1.141 kristaps 634: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 635: {
636: va_list ap;
637:
638: va_start(ap, fmt);
1.156 schwarze 639: (void)vsnprintf(h->buf + (int)h->buflen,
640: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 641: va_end(ap);
642: h->buflen = strlen(h->buf);
643: }
644:
1.141 kristaps 645: static void
1.55 kristaps 646: bufncat(struct html *h, const char *p, size_t sz)
647: {
648:
1.141 kristaps 649: assert(h->buflen + sz + 1 < BUFSIZ);
650: strncat(h->buf, p, sz);
1.55 kristaps 651: h->buflen += sz;
652: }
653:
654: void
655: buffmt_includes(struct html *h, const char *name)
656: {
657: const char *p, *pp;
658:
659: pp = h->base_includes;
1.156 schwarze 660:
1.143 kristaps 661: bufinit(h);
1.61 kristaps 662: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 663: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 664: switch (*(p + 1)) {
1.193 ! schwarze 665: case 'I':
1.55 kristaps 666: bufcat(h, name);
667: break;
668: default:
669: bufncat(h, p, 2);
670: break;
671: }
672: pp = p + 2;
673: }
674: if (pp)
675: bufcat(h, pp);
676: }
677:
678: void
1.156 schwarze 679: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 680: {
681: const char *p, *pp;
682:
683: pp = h->base_man;
1.156 schwarze 684:
1.143 kristaps 685: bufinit(h);
1.61 kristaps 686: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 687: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 688: switch (*(p + 1)) {
1.156 schwarze 689: case 'S':
1.58 kristaps 690: bufcat(h, sec ? sec : "1");
1.55 kristaps 691: break;
1.156 schwarze 692: case 'N':
1.153 joerg 693: bufcat_fmt(h, "%s", name);
1.55 kristaps 694: break;
695: default:
696: bufncat(h, p, 2);
697: break;
698: }
699: pp = p + 2;
700: }
701: if (pp)
702: bufcat(h, pp);
703: }
1.58 kristaps 704:
705: void
706: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
707: {
1.62 kristaps 708: double v;
1.58 kristaps 709:
710: v = su->scale;
1.140 kristaps 711: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
712: v = 1.0;
1.162 kristaps 713: else if (SCALE_BU == su->unit)
714: v /= 24.0;
1.58 kristaps 715:
1.141 kristaps 716: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 717: }
1.68 kristaps 718:
719: void
1.142 kristaps 720: bufcat_id(struct html *h, const char *src)
1.68 kristaps 721: {
722:
1.192 schwarze 723: /* Cf. <http://www.w3.org/TR/html5/dom.html#the-id-attribute>. */
1.68 kristaps 724:
1.192 schwarze 725: for (; '\0' != *src; src++)
726: bufncat(h, *src == ' ' ? "_" : src, 1);
1.68 kristaps 727: }
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