Annotation of mandoc/html.c, Revision 1.185
1.185 ! schwarze 1: /* $Id: html.c,v 1.184 2014/12/20 00:20:11 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: *
1.29 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"
1.58 kristaps 33: #include "out.h"
1.51 kristaps 34: #include "html.h"
1.64 kristaps 35: #include "main.h"
1.63 kristaps 36:
1.29 kristaps 37: struct htmldata {
1.63 kristaps 38: const char *name;
1.29 kristaps 39: int flags;
1.30 kristaps 40: #define HTML_CLRLINE (1 << 0)
41: #define HTML_NOSTACK (1 << 1)
1.93 kristaps 42: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.29 kristaps 43: };
1.7 kristaps 44:
1.29 kristaps 45: static const struct htmldata htmltags[TAG_MAX] = {
1.30 kristaps 46: {"html", HTML_CLRLINE}, /* TAG_HTML */
47: {"head", HTML_CLRLINE}, /* TAG_HEAD */
48: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.93 kristaps 49: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.33 kristaps 50: {"title", HTML_CLRLINE}, /* TAG_TITLE */
1.30 kristaps 51: {"div", HTML_CLRLINE}, /* TAG_DIV */
1.29 kristaps 52: {"h1", 0}, /* TAG_H1 */
53: {"h2", 0}, /* TAG_H2 */
54: {"span", 0}, /* TAG_SPAN */
1.99 kristaps 55: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.93 kristaps 56: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.30 kristaps 57: {"a", 0}, /* TAG_A */
1.33 kristaps 58: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.114 kristaps 59: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.93 kristaps 60: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.33 kristaps 61: {"tr", HTML_CLRLINE}, /* TAG_TR */
62: {"td", HTML_CLRLINE}, /* TAG_TD */
1.34 kristaps 63: {"li", HTML_CLRLINE}, /* TAG_LI */
64: {"ul", HTML_CLRLINE}, /* TAG_UL */
65: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.114 kristaps 66: {"dl", HTML_CLRLINE}, /* TAG_DL */
67: {"dt", HTML_CLRLINE}, /* TAG_DT */
68: {"dd", HTML_CLRLINE}, /* TAG_DD */
1.115 kristaps 69: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
1.118 kristaps 70: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.119 kristaps 71: {"b", 0 }, /* TAG_B */
1.120 kristaps 72: {"i", 0 }, /* TAG_I */
1.121 kristaps 73: {"code", 0 }, /* TAG_CODE */
1.122 kristaps 74: {"small", 0 }, /* TAG_SMALL */
1.165 kristaps 75: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.173 kristaps 76: {"math", HTML_CLRLINE}, /* TAG_MATH */
77: {"mrow", 0}, /* TAG_MROW */
78: {"mi", 0}, /* TAG_MI */
79: {"mo", 0}, /* TAG_MO */
80: {"msup", 0}, /* TAG_MSUP */
81: {"msub", 0}, /* TAG_MSUB */
82: {"msubsup", 0}, /* TAG_MSUBSUP */
83: {"mfrac", 0}, /* TAG_MFRAC */
84: {"msqrt", 0}, /* TAG_MSQRT */
85: {"mfenced", 0}, /* TAG_MFENCED */
86: {"mtable", 0}, /* TAG_MTABLE */
87: {"mtr", 0}, /* TAG_MTR */
88: {"mtd", 0}, /* TAG_MTD */
1.174 kristaps 89: {"munderover", 0}, /* TAG_MUNDEROVER */
90: {"munder", 0}, /* TAG_MUNDER*/
91: {"mover", 0}, /* TAG_MOVER*/
1.90 kristaps 92: };
93:
1.82 kristaps 94: static const char *const htmlattrs[ATTR_MAX] = {
1.119 kristaps 95: "name", /* ATTR_NAME */
96: "rel", /* ATTR_REL */
97: "href", /* ATTR_HREF */
98: "type", /* ATTR_TYPE */
99: "media", /* ATTR_MEDIA */
100: "class", /* ATTR_CLASS */
101: "style", /* ATTR_STYLE */
102: "id", /* ATTR_ID */
1.125 kristaps 103: "colspan", /* ATTR_COLSPAN */
1.164 kristaps 104: "charset", /* ATTR_CHARSET */
1.173 kristaps 105: "open", /* ATTR_OPEN */
106: "close", /* ATTR_CLOSE */
1.175 kristaps 107: "mathvariant", /* ATTR_MATHVARIANT */
1.29 kristaps 108: };
1.10 kristaps 109:
1.140 kristaps 110: static const char *const roffscales[SCALE_MAX] = {
111: "cm", /* SCALE_CM */
112: "in", /* SCALE_IN */
113: "pc", /* SCALE_PC */
114: "pt", /* SCALE_PT */
115: "em", /* SCALE_EM */
116: "em", /* SCALE_MM */
117: "ex", /* SCALE_EN */
118: "ex", /* SCALE_BU */
119: "em", /* SCALE_VS */
120: "ex", /* SCALE_FS */
121: };
122:
1.141 kristaps 123: static void bufncat(struct html *, const char *, size_t);
1.184 schwarze 124: static void print_ctag(struct html *, struct tag *);
1.159 schwarze 125: static int print_escape(char);
1.141 kristaps 126: static int print_encode(struct html *, const char *, int);
127: static void print_metaf(struct html *, enum mandoc_esc);
128: static void print_attr(struct html *, const char *, const char *);
1.82 kristaps 129:
1.156 schwarze 130:
1.180 schwarze 131: void *
132: html_alloc(const struct mchars *mchars, char *outopts)
1.10 kristaps 133: {
1.30 kristaps 134: struct html *h;
1.150 kristaps 135: const char *toks[5];
1.63 kristaps 136: char *v;
1.43 kristaps 137:
138: toks[0] = "style";
1.53 kristaps 139: toks[1] = "man";
1.54 kristaps 140: toks[2] = "includes";
1.150 kristaps 141: toks[3] = "fragment";
142: toks[4] = NULL;
1.30 kristaps 143:
1.128 kristaps 144: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 145:
1.66 kristaps 146: h->tags.head = NULL;
1.180 schwarze 147: h->symtab = mchars;
1.41 kristaps 148:
1.47 kristaps 149: while (outopts && *outopts)
1.63 kristaps 150: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.156 schwarze 151: case 0:
1.43 kristaps 152: h->style = v;
153: break;
1.156 schwarze 154: case 1:
1.53 kristaps 155: h->base_man = v;
1.43 kristaps 156: break;
1.156 schwarze 157: case 2:
1.54 kristaps 158: h->base_includes = v;
1.150 kristaps 159: break;
1.156 schwarze 160: case 3:
1.150 kristaps 161: h->oflags |= HTML_FRAGMENT;
1.54 kristaps 162: break;
1.43 kristaps 163: default:
164: break;
165: }
166:
1.30 kristaps 167: return(h);
1.29 kristaps 168: }
1.10 kristaps 169:
1.29 kristaps 170: void
171: html_free(void *p)
172: {
1.30 kristaps 173: struct tag *tag;
174: struct html *h;
175:
176: h = (struct html *)p;
1.37 kristaps 177:
1.66 kristaps 178: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 179: h->tags.head = tag->next;
1.30 kristaps 180: free(tag);
181: }
1.53 kristaps 182:
1.30 kristaps 183: free(h);
1.10 kristaps 184: }
1.2 kristaps 185:
1.51 kristaps 186: void
1.29 kristaps 187: print_gen_head(struct html *h)
188: {
1.41 kristaps 189: struct htmlpair tag[4];
1.165 kristaps 190: struct tag *t;
1.41 kristaps 191:
1.164 kristaps 192: tag[0].key = ATTR_CHARSET;
193: tag[0].val = "utf-8";
194: print_otag(h, TAG_META, 1, tag);
1.165 kristaps 195:
1.168 kristaps 196: /*
197: * Print a default style-sheet.
198: */
1.165 kristaps 199: t = print_otag(h, TAG_STYLE, 0, NULL);
1.168 kristaps 200: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 201: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 202: "td.head-vol { text-align: center; }\n"
203: "table.foot td { width: 50%; }\n"
1.171 kristaps 204: "table.head td { width: 33%; }\n"
205: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 206: print_tagq(h, t);
1.41 kristaps 207:
208: if (h->style) {
209: tag[0].key = ATTR_REL;
210: tag[0].val = "stylesheet";
211: tag[1].key = ATTR_HREF;
212: tag[1].val = h->style;
213: tag[2].key = ATTR_TYPE;
214: tag[2].val = "text/css";
215: tag[3].key = ATTR_MEDIA;
216: tag[3].val = "all";
217: print_otag(h, TAG_LINK, 4, tag);
218: }
1.4 kristaps 219: }
220:
1.126 schwarze 221: static void
1.132 kristaps 222: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 223: {
1.90 kristaps 224: enum htmlfont font;
1.88 kristaps 225:
226: switch (deco) {
1.156 schwarze 227: case ESCAPE_FONTPREV:
1.90 kristaps 228: font = h->metal;
1.88 kristaps 229: break;
1.156 schwarze 230: case ESCAPE_FONTITALIC:
1.90 kristaps 231: font = HTMLFONT_ITALIC;
232: break;
1.156 schwarze 233: case ESCAPE_FONTBOLD:
1.90 kristaps 234: font = HTMLFONT_BOLD;
1.88 kristaps 235: break;
1.156 schwarze 236: case ESCAPE_FONTBI:
1.152 schwarze 237: font = HTMLFONT_BI;
238: break;
1.156 schwarze 239: case ESCAPE_FONT:
1.145 kristaps 240: /* FALLTHROUGH */
1.156 schwarze 241: case ESCAPE_FONTROMAN:
1.90 kristaps 242: font = HTMLFONT_NONE;
1.88 kristaps 243: break;
244: default:
245: abort();
246: /* NOTREACHED */
247: }
248:
1.122 kristaps 249: if (h->metaf) {
250: print_tagq(h, h->metaf);
251: h->metaf = NULL;
252: }
253:
254: h->metal = h->metac;
255: h->metac = font;
256:
1.152 schwarze 257: switch (font) {
1.156 schwarze 258: case HTMLFONT_ITALIC:
1.152 schwarze 259: h->metaf = print_otag(h, TAG_I, 0, NULL);
260: break;
1.156 schwarze 261: case HTMLFONT_BOLD:
1.152 schwarze 262: h->metaf = print_otag(h, TAG_B, 0, NULL);
263: break;
1.156 schwarze 264: case HTMLFONT_BI:
1.152 schwarze 265: h->metaf = print_otag(h, TAG_B, 0, NULL);
266: print_otag(h, TAG_I, 0, NULL);
267: break;
268: default:
269: break;
270: }
1.88 kristaps 271: }
272:
1.138 kristaps 273: int
274: html_strlen(const char *cp)
275: {
1.151 schwarze 276: size_t rsz;
277: int skip, sz;
1.138 kristaps 278:
279: /*
280: * Account for escaped sequences within string length
281: * calculations. This follows the logic in term_strlen() as we
282: * must calculate the width of produced strings.
283: * Assume that characters are always width of "1". This is
284: * hacky, but it gets the job done for approximation of widths.
285: */
286:
287: sz = 0;
1.151 schwarze 288: skip = 0;
289: while (1) {
290: rsz = strcspn(cp, "\\");
291: if (rsz) {
292: cp += rsz;
293: if (skip) {
294: skip = 0;
295: rsz--;
296: }
297: sz += rsz;
298: }
299: if ('\0' == *cp)
300: break;
301: cp++;
302: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 303: case ESCAPE_ERROR:
1.138 kristaps 304: return(sz);
1.156 schwarze 305: case ESCAPE_UNICODE:
1.144 kristaps 306: /* FALLTHROUGH */
1.156 schwarze 307: case ESCAPE_NUMBERED:
1.139 kristaps 308: /* FALLTHROUGH */
1.156 schwarze 309: case ESCAPE_SPECIAL:
1.185 ! schwarze 310: /* FALLTHROUGH */
! 311: case ESCAPE_OVERSTRIKE:
1.151 schwarze 312: if (skip)
313: skip = 0;
314: else
315: sz++;
316: break;
1.156 schwarze 317: case ESCAPE_SKIPCHAR:
1.151 schwarze 318: skip = 1;
1.138 kristaps 319: break;
320: default:
321: break;
322: }
323: }
1.151 schwarze 324: return(sz);
1.138 kristaps 325: }
1.88 kristaps 326:
1.85 kristaps 327: static int
1.159 schwarze 328: print_escape(char c)
329: {
330:
331: switch (c) {
332: case '<':
333: printf("<");
334: break;
335: case '>':
336: printf(">");
337: break;
338: case '&':
339: printf("&");
340: break;
341: case '"':
342: printf(""");
343: break;
344: case ASCII_NBRSP:
345: putchar('-');
346: break;
347: case ASCII_HYPH:
348: putchar('-');
349: /* FALLTHROUGH */
350: case ASCII_BREAK:
351: break;
352: default:
353: return(0);
354: }
355: return(1);
356: }
357:
358: static int
1.88 kristaps 359: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 360: {
1.77 kristaps 361: size_t sz;
1.141 kristaps 362: int c, len, nospace;
1.82 kristaps 363: const char *seq;
1.132 kristaps 364: enum mandoc_esc esc;
1.158 schwarze 365: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 366: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 367:
1.85 kristaps 368: nospace = 0;
369:
1.132 kristaps 370: while ('\0' != *p) {
1.151 schwarze 371: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
372: h->flags &= ~HTML_SKIPCHAR;
373: p++;
374: continue;
375: }
376:
1.100 kristaps 377: sz = strcspn(p, rejs);
1.77 kristaps 378:
379: fwrite(p, 1, sz, stdout);
1.132 kristaps 380: p += (int)sz;
1.77 kristaps 381:
1.132 kristaps 382: if ('\0' == *p)
383: break;
384:
1.159 schwarze 385: if (print_escape(*p++))
1.154 schwarze 386: continue;
1.77 kristaps 387:
1.132 kristaps 388: esc = mandoc_escape(&p, &seq, &len);
389: if (ESCAPE_ERROR == esc)
390: break;
1.82 kristaps 391:
1.132 kristaps 392: switch (esc) {
1.156 schwarze 393: case ESCAPE_FONT:
1.151 schwarze 394: /* FALLTHROUGH */
1.156 schwarze 395: case ESCAPE_FONTPREV:
1.151 schwarze 396: /* FALLTHROUGH */
1.156 schwarze 397: case ESCAPE_FONTBOLD:
1.151 schwarze 398: /* FALLTHROUGH */
1.156 schwarze 399: case ESCAPE_FONTITALIC:
1.151 schwarze 400: /* FALLTHROUGH */
1.156 schwarze 401: case ESCAPE_FONTBI:
1.152 schwarze 402: /* FALLTHROUGH */
1.156 schwarze 403: case ESCAPE_FONTROMAN:
1.151 schwarze 404: if (0 == norecurse)
405: print_metaf(h, esc);
406: continue;
1.156 schwarze 407: case ESCAPE_SKIPCHAR:
1.151 schwarze 408: h->flags |= HTML_SKIPCHAR;
409: continue;
410: default:
411: break;
412: }
413:
414: if (h->flags & HTML_SKIPCHAR) {
415: h->flags &= ~HTML_SKIPCHAR;
416: continue;
417: }
418:
419: switch (esc) {
1.156 schwarze 420: case ESCAPE_UNICODE:
1.159 schwarze 421: /* Skip past "u" header. */
1.144 kristaps 422: c = mchars_num2uc(seq + 1, len - 1);
423: break;
1.156 schwarze 424: case ESCAPE_NUMBERED:
1.141 kristaps 425: c = mchars_num2char(seq, len);
1.181 schwarze 426: if (c < 0)
427: continue;
1.82 kristaps 428: break;
1.156 schwarze 429: case ESCAPE_SPECIAL:
1.147 kristaps 430: c = mchars_spec2cp(h->symtab, seq, len);
1.181 schwarze 431: if (c <= 0)
432: continue;
1.132 kristaps 433: break;
1.156 schwarze 434: case ESCAPE_NOSPACE:
1.132 kristaps 435: if ('\0' == *p)
436: nospace = 1;
1.179 schwarze 437: continue;
1.185 ! schwarze 438: case ESCAPE_OVERSTRIKE:
! 439: if (len == 0)
! 440: continue;
! 441: c = seq[len - 1];
! 442: break;
1.82 kristaps 443: default:
1.179 schwarze 444: continue;
1.82 kristaps 445: }
1.181 schwarze 446: if ((c < 0x20 && c != 0x09) ||
447: (c > 0x7E && c < 0xA0))
1.179 schwarze 448: c = 0xFFFD;
449: if (c > 0x7E)
450: printf("&#%d;", c);
451: else if ( ! print_escape(c))
452: putchar(c);
1.32 kristaps 453: }
1.85 kristaps 454:
455: return(nospace);
1.14 kristaps 456: }
457:
1.94 kristaps 458: static void
459: print_attr(struct html *h, const char *key, const char *val)
460: {
461: printf(" %s=\"", key);
462: (void)print_encode(h, val, 1);
463: putchar('\"');
464: }
465:
1.51 kristaps 466: struct tag *
1.156 schwarze 467: print_otag(struct html *h, enum htmltag tag,
1.29 kristaps 468: int sz, const struct htmlpair *p)
1.14 kristaps 469: {
1.29 kristaps 470: int i;
1.30 kristaps 471: struct tag *t;
472:
1.94 kristaps 473: /* Push this tags onto the stack of open scopes. */
474:
1.30 kristaps 475: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 476: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 477: t->tag = tag;
1.66 kristaps 478: t->next = h->tags.head;
479: h->tags.head = t;
1.30 kristaps 480: } else
481: t = NULL;
1.29 kristaps 482:
483: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 484: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
485: /* Manage keeps! */
486: if ( ! (HTML_KEEP & h->flags)) {
487: if (HTML_PREKEEP & h->flags)
488: h->flags |= HTML_KEEP;
489: putchar(' ');
490: } else
491: printf(" ");
492: }
1.29 kristaps 493:
1.109 kristaps 494: if ( ! (h->flags & HTML_NONOSPACE))
495: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 496: else
497: h->flags |= HTML_NOSPACE;
1.109 kristaps 498:
1.94 kristaps 499: /* Print out the tag name and attributes. */
500:
1.29 kristaps 501: printf("<%s", htmltags[tag].name);
1.94 kristaps 502: for (i = 0; i < sz; i++)
503: print_attr(h, htmlattrs[p[i].key], p[i].val);
504:
1.172 kristaps 505: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 506:
1.93 kristaps 507: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 508: putchar('/');
1.93 kristaps 509:
1.78 kristaps 510: putchar('>');
1.14 kristaps 511:
1.29 kristaps 512: h->flags |= HTML_NOSPACE;
1.117 kristaps 513:
514: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
515: putchar('\n');
516:
1.30 kristaps 517: return(t);
1.14 kristaps 518: }
519:
1.29 kristaps 520: static void
1.184 schwarze 521: print_ctag(struct html *h, struct tag *tag)
1.14 kristaps 522: {
1.156 schwarze 523:
1.184 schwarze 524: /*
525: * Remember to close out and nullify the current
526: * meta-font and table, if applicable.
527: */
528: if (tag == h->metaf)
529: h->metaf = NULL;
530: if (tag == h->tblt)
531: h->tblt = NULL;
532:
533: printf("</%s>", htmltags[tag->tag].name);
534: if (HTML_CLRLINE & htmltags[tag->tag].flags) {
1.29 kristaps 535: h->flags |= HTML_NOSPACE;
1.78 kristaps 536: putchar('\n');
1.156 schwarze 537: }
1.184 schwarze 538:
539: h->tags.head = tag->next;
540: free(tag);
1.14 kristaps 541: }
542:
1.51 kristaps 543: void
1.93 kristaps 544: print_gen_decls(struct html *h)
1.1 kristaps 545: {
1.93 kristaps 546:
1.164 kristaps 547: puts("<!DOCTYPE html>");
1.1 kristaps 548: }
549:
1.51 kristaps 550: void
1.104 kristaps 551: print_text(struct html *h, const char *word)
1.1 kristaps 552: {
553:
1.105 kristaps 554: if ( ! (HTML_NOSPACE & h->flags)) {
555: /* Manage keeps! */
556: if ( ! (HTML_KEEP & h->flags)) {
557: if (HTML_PREKEEP & h->flags)
558: h->flags |= HTML_KEEP;
559: putchar(' ');
560: } else
561: printf(" ");
562: }
1.30 kristaps 563:
1.122 kristaps 564: assert(NULL == h->metaf);
1.152 schwarze 565: switch (h->metac) {
1.156 schwarze 566: case HTMLFONT_ITALIC:
1.152 schwarze 567: h->metaf = print_otag(h, TAG_I, 0, NULL);
568: break;
1.156 schwarze 569: case HTMLFONT_BOLD:
1.152 schwarze 570: h->metaf = print_otag(h, TAG_B, 0, NULL);
571: break;
1.156 schwarze 572: case HTMLFONT_BI:
1.152 schwarze 573: h->metaf = print_otag(h, TAG_B, 0, NULL);
574: print_otag(h, TAG_I, 0, NULL);
575: break;
576: default:
577: break;
578: }
1.122 kristaps 579:
1.104 kristaps 580: assert(word);
1.149 kristaps 581: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 582: if ( ! (h->flags & HTML_NONOSPACE))
583: h->flags &= ~HTML_NOSPACE;
1.183 schwarze 584: h->flags &= ~HTML_NONEWLINE;
1.149 kristaps 585: } else
1.183 schwarze 586: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.122 kristaps 587:
588: if (h->metaf) {
589: print_tagq(h, h->metaf);
590: h->metaf = NULL;
591: }
1.113 schwarze 592:
593: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 594: }
1.30 kristaps 595:
1.51 kristaps 596: void
1.30 kristaps 597: print_tagq(struct html *h, const struct tag *until)
598: {
599: struct tag *tag;
600:
1.66 kristaps 601: while ((tag = h->tags.head) != NULL) {
1.184 schwarze 602: print_ctag(h, tag);
1.30 kristaps 603: if (until && tag == until)
604: return;
605: }
606: }
607:
1.51 kristaps 608: void
1.30 kristaps 609: print_stagq(struct html *h, const struct tag *suntil)
610: {
611: struct tag *tag;
612:
1.66 kristaps 613: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 614: if (suntil && tag == suntil)
615: return;
1.184 schwarze 616: print_ctag(h, tag);
1.30 kristaps 617: }
618: }
1.171 kristaps 619:
620: void
621: print_paragraph(struct html *h)
622: {
623: struct tag *t;
624: struct htmlpair tag;
625:
626: PAIR_CLASS_INIT(&tag, "spacer");
627: t = print_otag(h, TAG_DIV, 1, &tag);
628: print_tagq(h, t);
629: }
630:
1.55 kristaps 631:
632: void
633: bufinit(struct html *h)
634: {
635:
636: h->buf[0] = '\0';
637: h->buflen = 0;
638: }
639:
640: void
1.58 kristaps 641: bufcat_style(struct html *h, const char *key, const char *val)
642: {
643:
644: bufcat(h, key);
1.141 kristaps 645: bufcat(h, ":");
1.58 kristaps 646: bufcat(h, val);
1.141 kristaps 647: bufcat(h, ";");
1.58 kristaps 648: }
649:
650: void
1.55 kristaps 651: bufcat(struct html *h, const char *p)
652: {
1.157 schwarze 653:
654: /*
655: * XXX This is broken and not easy to fix.
656: * When using the -Oincludes option, buffmt_includes()
657: * may pass in strings overrunning BUFSIZ, causing a crash.
658: */
1.55 kristaps 659:
1.141 kristaps 660: h->buflen = strlcat(h->buf, p, BUFSIZ);
661: assert(h->buflen < BUFSIZ);
1.55 kristaps 662: }
663:
664: void
1.141 kristaps 665: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 666: {
667: va_list ap;
668:
669: va_start(ap, fmt);
1.156 schwarze 670: (void)vsnprintf(h->buf + (int)h->buflen,
671: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 672: va_end(ap);
673: h->buflen = strlen(h->buf);
674: }
675:
1.141 kristaps 676: static void
1.55 kristaps 677: bufncat(struct html *h, const char *p, size_t sz)
678: {
679:
1.141 kristaps 680: assert(h->buflen + sz + 1 < BUFSIZ);
681: strncat(h->buf, p, sz);
1.55 kristaps 682: h->buflen += sz;
683: }
684:
685: void
686: buffmt_includes(struct html *h, const char *name)
687: {
688: const char *p, *pp;
689:
690: pp = h->base_includes;
1.156 schwarze 691:
1.143 kristaps 692: bufinit(h);
1.61 kristaps 693: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 694: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 695: switch (*(p + 1)) {
1.156 schwarze 696: case'I':
1.55 kristaps 697: bufcat(h, name);
698: break;
699: default:
700: bufncat(h, p, 2);
701: break;
702: }
703: pp = p + 2;
704: }
705: if (pp)
706: bufcat(h, pp);
707: }
708:
709: void
1.156 schwarze 710: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 711: {
712: const char *p, *pp;
713:
714: pp = h->base_man;
1.156 schwarze 715:
1.143 kristaps 716: bufinit(h);
1.61 kristaps 717: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 718: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 719: switch (*(p + 1)) {
1.156 schwarze 720: case 'S':
1.58 kristaps 721: bufcat(h, sec ? sec : "1");
1.55 kristaps 722: break;
1.156 schwarze 723: case 'N':
1.153 joerg 724: bufcat_fmt(h, "%s", name);
1.55 kristaps 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: }
1.58 kristaps 735:
736: void
737: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
738: {
1.62 kristaps 739: double v;
1.58 kristaps 740:
741: v = su->scale;
1.140 kristaps 742: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
743: v = 1.0;
1.162 kristaps 744: else if (SCALE_BU == su->unit)
745: v /= 24.0;
1.58 kristaps 746:
1.141 kristaps 747: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 748: }
1.68 kristaps 749:
750: void
1.142 kristaps 751: bufcat_id(struct html *h, const char *src)
1.68 kristaps 752: {
753:
754: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
755:
1.142 kristaps 756: while ('\0' != *src)
757: bufcat_fmt(h, "%.2x", *src++);
1.68 kristaps 758: }
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