Annotation of mandoc/html.c, Revision 1.107
1.107 ! kristaps 1: /* $Id: html.c,v 1.106 2010/07/13 23:53:20 schwarze Exp $ */
1.1 kristaps 2: /*
1.106 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.29 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.29 kristaps 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
1.92 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.41 kristaps 21: #include <sys/types.h>
1.30 kristaps 22:
1.1 kristaps 23: #include <assert.h>
1.68 kristaps 24: #include <ctype.h>
1.76 kristaps 25: #include <stdarg.h>
1.29 kristaps 26: #include <stdio.h>
1.63 kristaps 27: #include <stdint.h>
1.1 kristaps 28: #include <stdlib.h>
1.33 kristaps 29: #include <string.h>
1.45 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
1.100 kristaps 32: #include "mandoc.h"
1.58 kristaps 33: #include "out.h"
1.32 kristaps 34: #include "chars.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 */
1.93 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 */
1.29 kristaps 66: };
1.10 kristaps 67:
1.90 kristaps 68: static const char *const htmlfonts[HTMLFONT_MAX] = {
69: "roman",
70: "bold",
71: "italic"
72: };
73:
1.82 kristaps 74: static const char *const htmlattrs[ATTR_MAX] = {
1.29 kristaps 75: "http-equiv",
76: "content",
77: "name",
78: "rel",
79: "href",
80: "type",
81: "media",
1.33 kristaps 82: "class",
83: "style",
84: "width",
85: "valign",
1.54 kristaps 86: "target",
1.57 kristaps 87: "id",
1.67 kristaps 88: "summary",
1.29 kristaps 89: };
1.10 kristaps 90:
1.83 kristaps 91: static void print_spec(struct html *, const char *, size_t);
92: static void print_res(struct html *, const char *, size_t);
1.82 kristaps 93: static void print_ctag(struct html *, enum htmltag);
1.93 kristaps 94: static void print_doctype(struct html *);
95: static void print_xmltype(struct html *);
1.88 kristaps 96: static int print_encode(struct html *, const char *, int);
97: static void print_metaf(struct html *, enum roffdeco);
1.94 kristaps 98: static void print_attr(struct html *,
99: const char *, const char *);
1.93 kristaps 100: static void *ml_alloc(char *, enum htmltype);
1.82 kristaps 101:
102:
1.93 kristaps 103: static void *
104: ml_alloc(char *outopts, enum htmltype type)
1.10 kristaps 105: {
1.30 kristaps 106: struct html *h;
1.63 kristaps 107: const char *toks[4];
108: char *v;
1.43 kristaps 109:
110: toks[0] = "style";
1.53 kristaps 111: toks[1] = "man";
1.54 kristaps 112: toks[2] = "includes";
113: toks[3] = NULL;
1.30 kristaps 114:
1.72 kristaps 115: h = calloc(1, sizeof(struct html));
116: if (NULL == h) {
1.75 kristaps 117: perror(NULL);
1.72 kristaps 118: exit(EXIT_FAILURE);
119: }
1.10 kristaps 120:
1.93 kristaps 121: h->type = type;
1.66 kristaps 122: h->tags.head = NULL;
123: h->ords.head = NULL;
1.72 kristaps 124: h->symtab = chars_init(CHARS_HTML);
1.41 kristaps 125:
1.47 kristaps 126: while (outopts && *outopts)
1.63 kristaps 127: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.43 kristaps 128: case (0):
129: h->style = v;
130: break;
131: case (1):
1.53 kristaps 132: h->base_man = v;
1.43 kristaps 133: break;
1.54 kristaps 134: case (2):
135: h->base_includes = v;
136: break;
1.43 kristaps 137: default:
138: break;
139: }
140:
1.30 kristaps 141: return(h);
1.29 kristaps 142: }
1.10 kristaps 143:
1.93 kristaps 144: void *
145: html_alloc(char *outopts)
146: {
147:
148: return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
149: }
150:
151:
152: void *
153: xhtml_alloc(char *outopts)
154: {
155:
156: return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
157: }
158:
1.33 kristaps 159:
1.29 kristaps 160: void
161: html_free(void *p)
162: {
1.30 kristaps 163: struct tag *tag;
1.37 kristaps 164: struct ord *ord;
1.30 kristaps 165: struct html *h;
166:
167: h = (struct html *)p;
1.10 kristaps 168:
1.66 kristaps 169: while ((ord = h->ords.head) != NULL) {
170: h->ords.head = ord->next;
1.37 kristaps 171: free(ord);
172: }
173:
1.66 kristaps 174: while ((tag = h->tags.head) != NULL) {
175: h->tags.head = tag->next;
1.30 kristaps 176: free(tag);
177: }
1.36 kristaps 178:
179: if (h->symtab)
180: chars_free(h->symtab);
1.53 kristaps 181:
1.30 kristaps 182: free(h);
1.10 kristaps 183: }
1.2 kristaps 184:
1.33 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];
190:
191: tag[0].key = ATTR_HTTPEQUIV;
192: tag[0].val = "Content-Type";
193: tag[1].key = ATTR_CONTENT;
194: tag[1].val = "text/html; charset=utf-8";
195: print_otag(h, TAG_META, 2, tag);
196:
197: tag[0].key = ATTR_NAME;
198: tag[0].val = "resource-type";
199: tag[1].key = ATTR_CONTENT;
200: tag[1].val = "document";
201: print_otag(h, TAG_META, 2, tag);
202:
203: if (h->style) {
204: tag[0].key = ATTR_REL;
205: tag[0].val = "stylesheet";
206: tag[1].key = ATTR_HREF;
207: tag[1].val = h->style;
208: tag[2].key = ATTR_TYPE;
209: tag[2].val = "text/css";
210: tag[3].key = ATTR_MEDIA;
211: tag[3].val = "all";
212: print_otag(h, TAG_LINK, 4, tag);
213: }
1.4 kristaps 214: }
215:
1.33 kristaps 216:
1.29 kristaps 217: static void
1.83 kristaps 218: print_spec(struct html *h, const char *p, size_t len)
1.32 kristaps 219: {
1.107 ! kristaps 220: int cp;
1.32 kristaps 221: const char *rhs;
222: size_t sz;
223:
1.107 ! kristaps 224: if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
! 225: printf("&#%d;", cp);
! 226: return;
! 227: } else if (-1 == cp)
! 228: return;
1.32 kristaps 229:
1.107 ! kristaps 230: if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
! 231: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 232: }
233:
1.33 kristaps 234:
1.32 kristaps 235: static void
1.83 kristaps 236: print_res(struct html *h, const char *p, size_t len)
1.32 kristaps 237: {
1.107 ! kristaps 238: int cp;
1.32 kristaps 239: const char *rhs;
240: size_t sz;
241:
1.107 ! kristaps 242: if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
! 243: printf("&#%d;", cp);
! 244: return;
! 245: } else if (-1 == cp)
! 246: return;
1.32 kristaps 247:
1.107 ! kristaps 248: if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
! 249: fwrite(rhs, 1, sz, stdout);
1.32 kristaps 250: }
251:
1.33 kristaps 252:
1.90 kristaps 253: struct tag *
254: print_ofont(struct html *h, enum htmlfont font)
255: {
256: struct htmlpair tag;
257:
258: h->metal = h->metac;
259: h->metac = font;
260:
261: /* FIXME: DECO_ROMAN should just close out preexisting. */
262:
1.91 kristaps 263: if (h->metaf && h->tags.head == h->metaf)
1.90 kristaps 264: print_tagq(h, h->metaf);
265:
266: PAIR_CLASS_INIT(&tag, htmlfonts[font]);
267: h->metaf = print_otag(h, TAG_SPAN, 1, &tag);
268: return(h->metaf);
269: }
270:
271:
1.88 kristaps 272: static void
273: print_metaf(struct html *h, enum roffdeco deco)
274: {
1.90 kristaps 275: enum htmlfont font;
1.88 kristaps 276:
277: switch (deco) {
1.90 kristaps 278: case (DECO_PREVIOUS):
279: font = h->metal;
1.88 kristaps 280: break;
281: case (DECO_ITALIC):
1.90 kristaps 282: font = HTMLFONT_ITALIC;
283: break;
284: case (DECO_BOLD):
285: font = HTMLFONT_BOLD;
1.88 kristaps 286: break;
287: case (DECO_ROMAN):
1.90 kristaps 288: font = HTMLFONT_NONE;
1.88 kristaps 289: break;
290: default:
291: abort();
292: /* NOTREACHED */
293: }
294:
1.90 kristaps 295: (void)print_ofont(h, font);
1.88 kristaps 296: }
297:
298:
1.85 kristaps 299: static int
1.88 kristaps 300: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 301: {
1.77 kristaps 302: size_t sz;
1.85 kristaps 303: int len, nospace;
1.82 kristaps 304: const char *seq;
305: enum roffdeco deco;
1.100 kristaps 306: static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };
1.14 kristaps 307:
1.85 kristaps 308: nospace = 0;
309:
1.32 kristaps 310: for (; *p; p++) {
1.100 kristaps 311: sz = strcspn(p, rejs);
1.77 kristaps 312:
313: fwrite(p, 1, sz, stdout);
1.80 kristaps 314: p += /* LINTED */
315: sz;
1.77 kristaps 316:
1.82 kristaps 317: if ('<' == *p) {
318: printf("<");
319: continue;
320: } else if ('>' == *p) {
321: printf(">");
322: continue;
323: } else if ('&' == *p) {
324: printf("&");
1.34 kristaps 325: continue;
1.100 kristaps 326: } else if (ASCII_HYPH == *p) {
327: /*
328: * Note: "soft hyphens" aren't graphically
329: * displayed when not breaking the text; we want
330: * them to be displayed.
331: */
332: /*printf("­");*/
333: putchar('-');
334: continue;
1.77 kristaps 335: } else if ('\0' == *p)
336: break;
337:
1.82 kristaps 338: seq = ++p;
339: len = a2roffdeco(&deco, &seq, &sz);
340:
341: switch (deco) {
342: case (DECO_RESERVED):
343: print_res(h, seq, sz);
344: break;
345: case (DECO_SPECIAL):
346: print_spec(h, seq, sz);
347: break;
1.90 kristaps 348: case (DECO_PREVIOUS):
349: /* FALLTHROUGH */
1.88 kristaps 350: case (DECO_BOLD):
351: /* FALLTHROUGH */
352: case (DECO_ITALIC):
353: /* FALLTHROUGH */
354: case (DECO_ROMAN):
355: if (norecurse)
356: break;
357: print_metaf(h, deco);
358: break;
1.82 kristaps 359: default:
360: break;
361: }
362:
363: p += len - 1;
1.84 kristaps 364:
365: if (DECO_NOSPACE == deco && '\0' == *(p + 1))
1.85 kristaps 366: nospace = 1;
1.32 kristaps 367: }
1.85 kristaps 368:
369: return(nospace);
1.14 kristaps 370: }
371:
372:
1.94 kristaps 373: static void
374: print_attr(struct html *h, const char *key, const char *val)
375: {
376: printf(" %s=\"", key);
377: (void)print_encode(h, val, 1);
378: putchar('\"');
379: }
380:
381:
1.51 kristaps 382: struct tag *
1.29 kristaps 383: print_otag(struct html *h, enum htmltag tag,
384: int sz, const struct htmlpair *p)
1.14 kristaps 385: {
1.29 kristaps 386: int i;
1.30 kristaps 387: struct tag *t;
388:
1.94 kristaps 389: /* Push this tags onto the stack of open scopes. */
390:
1.30 kristaps 391: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.72 kristaps 392: t = malloc(sizeof(struct tag));
393: if (NULL == t) {
1.75 kristaps 394: perror(NULL);
1.72 kristaps 395: exit(EXIT_FAILURE);
396: }
1.30 kristaps 397: t->tag = tag;
1.66 kristaps 398: t->next = h->tags.head;
399: h->tags.head = t;
1.30 kristaps 400: } else
401: t = NULL;
1.29 kristaps 402:
403: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 404: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
405: /* Manage keeps! */
406: if ( ! (HTML_KEEP & h->flags)) {
407: if (HTML_PREKEEP & h->flags)
408: h->flags |= HTML_KEEP;
409: putchar(' ');
410: } else
411: printf(" ");
412: }
1.29 kristaps 413:
1.94 kristaps 414: /* Print out the tag name and attributes. */
415:
1.29 kristaps 416: printf("<%s", htmltags[tag].name);
1.94 kristaps 417: for (i = 0; i < sz; i++)
418: print_attr(h, htmlattrs[p[i].key], p[i].val);
419:
420: /* Add non-overridable attributes. */
421:
422: if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
423: print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
424: print_attr(h, "xml:lang", "en");
425: print_attr(h, "lang", "en");
1.29 kristaps 426: }
1.93 kristaps 427:
1.94 kristaps 428: /* Accomodate for XML "well-formed" singleton escaping. */
429:
1.93 kristaps 430: if (HTML_AUTOCLOSE & htmltags[tag].flags)
431: switch (h->type) {
432: case (HTML_XHTML_1_0_STRICT):
433: putchar('/');
434: break;
435: default:
436: break;
437: }
438:
1.78 kristaps 439: putchar('>');
1.14 kristaps 440:
1.29 kristaps 441: h->flags |= HTML_NOSPACE;
1.30 kristaps 442: return(t);
1.14 kristaps 443: }
444:
445:
1.29 kristaps 446: static void
447: print_ctag(struct html *h, enum htmltag tag)
1.14 kristaps 448: {
449:
1.29 kristaps 450: printf("</%s>", htmltags[tag].name);
1.71 kristaps 451: if (HTML_CLRLINE & htmltags[tag].flags) {
1.29 kristaps 452: h->flags |= HTML_NOSPACE;
1.78 kristaps 453: putchar('\n');
1.87 kristaps 454: }
1.14 kristaps 455: }
456:
457:
1.51 kristaps 458: void
1.93 kristaps 459: print_gen_decls(struct html *h)
1.1 kristaps 460: {
1.93 kristaps 461:
462: print_xmltype(h);
463: print_doctype(h);
464: }
465:
466:
467: static void
468: print_xmltype(struct html *h)
469: {
470:
1.100 kristaps 471: if (HTML_XHTML_1_0_STRICT == h->type)
472: printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
1.93 kristaps 473: }
474:
475:
476: static void
477: print_doctype(struct html *h)
478: {
479: const char *doctype;
480: const char *dtd;
1.96 kristaps 481: const char *name;
1.93 kristaps 482:
483: switch (h->type) {
484: case (HTML_HTML_4_01_STRICT):
1.96 kristaps 485: name = "HTML";
1.93 kristaps 486: doctype = "-//W3C//DTD HTML 4.01//EN";
487: dtd = "http://www.w3.org/TR/html4/strict.dtd";
488: break;
489: default:
1.96 kristaps 490: name = "html";
1.93 kristaps 491: doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
492: dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
493: break;
494: }
495:
1.96 kristaps 496: printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n",
497: name, doctype, dtd);
1.1 kristaps 498: }
499:
500:
1.51 kristaps 501: void
1.104 kristaps 502: print_text(struct html *h, const char *word)
1.1 kristaps 503: {
504:
1.104 kristaps 505: if (word[0] && '\0' == word[1])
506: switch (word[0]) {
1.29 kristaps 507: case('.'):
508: /* FALLTHROUGH */
509: case(','):
510: /* FALLTHROUGH */
511: case(';'):
512: /* FALLTHROUGH */
513: case(':'):
514: /* FALLTHROUGH */
515: case('?'):
516: /* FALLTHROUGH */
517: case('!'):
518: /* FALLTHROUGH */
519: case(')'):
520: /* FALLTHROUGH */
521: case(']'):
1.52 kristaps 522: if ( ! (HTML_IGNDELIM & h->flags))
523: h->flags |= HTML_NOSPACE;
1.30 kristaps 524: break;
1.29 kristaps 525: default:
526: break;
527: }
1.1 kristaps 528:
1.105 kristaps 529: if ( ! (HTML_NOSPACE & h->flags)) {
530: /* Manage keeps! */
531: if ( ! (HTML_KEEP & h->flags)) {
532: if (HTML_PREKEEP & h->flags)
533: h->flags |= HTML_KEEP;
534: putchar(' ');
535: } else
536: printf(" ");
537: }
1.30 kristaps 538:
1.104 kristaps 539: assert(word);
540: if ( ! print_encode(h, word, 0))
1.86 kristaps 541: h->flags &= ~HTML_NOSPACE;
1.8 kristaps 542:
1.98 kristaps 543: /*
544: * Note that we don't process the pipe: the parser sees it as
545: * punctuation, but we don't in terms of typography.
546: */
1.104 kristaps 547: if (word[0] && '\0' == word[1])
548: switch (word[0]) {
1.29 kristaps 549: case('('):
550: /* FALLTHROUGH */
551: case('['):
552: h->flags |= HTML_NOSPACE;
1.30 kristaps 553: break;
1.29 kristaps 554: default:
555: break;
556: }
1.1 kristaps 557: }
1.30 kristaps 558:
559:
1.51 kristaps 560: void
1.30 kristaps 561: print_tagq(struct html *h, const struct tag *until)
562: {
563: struct tag *tag;
564:
1.66 kristaps 565: while ((tag = h->tags.head) != NULL) {
1.89 kristaps 566: if (tag == h->metaf)
567: h->metaf = NULL;
1.30 kristaps 568: print_ctag(h, tag->tag);
1.66 kristaps 569: h->tags.head = tag->next;
1.30 kristaps 570: free(tag);
571: if (until && tag == until)
572: return;
573: }
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;
1.89 kristaps 585: if (tag == h->metaf)
586: h->metaf = NULL;
1.30 kristaps 587: print_ctag(h, tag->tag);
1.66 kristaps 588: h->tags.head = tag->next;
1.30 kristaps 589: free(tag);
590: }
591: }
1.55 kristaps 592:
593:
594: void
595: bufinit(struct html *h)
596: {
597:
598: h->buf[0] = '\0';
599: h->buflen = 0;
600: }
601:
602:
603: void
1.58 kristaps 604: bufcat_style(struct html *h, const char *key, const char *val)
605: {
606:
607: bufcat(h, key);
608: bufncat(h, ":", 1);
609: bufcat(h, val);
610: bufncat(h, ";", 1);
611: }
612:
613:
614: void
1.55 kristaps 615: bufcat(struct html *h, const char *p)
616: {
617:
618: bufncat(h, p, strlen(p));
619: }
620:
621:
622: void
623: buffmt(struct html *h, const char *fmt, ...)
624: {
625: va_list ap;
626:
627: va_start(ap, fmt);
1.56 kristaps 628: (void)vsnprintf(h->buf + (int)h->buflen,
1.55 kristaps 629: BUFSIZ - h->buflen - 1, fmt, ap);
630: va_end(ap);
631: h->buflen = strlen(h->buf);
632: }
633:
634:
635: void
636: bufncat(struct html *h, const char *p, size_t sz)
637: {
638:
639: if (h->buflen + sz > BUFSIZ - 1)
640: sz = BUFSIZ - 1 - h->buflen;
641:
642: (void)strncat(h->buf, p, sz);
643: h->buflen += sz;
644: }
645:
646:
647: void
648: buffmt_includes(struct html *h, const char *name)
649: {
650: const char *p, *pp;
651:
652: pp = h->base_includes;
1.61 kristaps 653:
654: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 655: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 656: switch (*(p + 1)) {
657: case('I'):
658: bufcat(h, name);
659: break;
660: default:
661: bufncat(h, p, 2);
662: break;
663: }
664: pp = p + 2;
665: }
666: if (pp)
667: bufcat(h, pp);
668: }
669:
670:
671: void
672: buffmt_man(struct html *h,
673: const char *name, const char *sec)
674: {
675: const char *p, *pp;
676:
677: pp = h->base_man;
1.61 kristaps 678:
679: /* LINTED */
680: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 681: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 682: switch (*(p + 1)) {
683: case('S'):
1.58 kristaps 684: bufcat(h, sec ? sec : "1");
1.55 kristaps 685: break;
686: case('N'):
1.58 kristaps 687: buffmt(h, name);
1.55 kristaps 688: break;
689: default:
690: bufncat(h, p, 2);
691: break;
692: }
693: pp = p + 2;
694: }
695: if (pp)
696: bufcat(h, pp);
697: }
1.58 kristaps 698:
699:
700: void
701: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
702: {
1.62 kristaps 703: double v;
1.63 kristaps 704: const char *u;
1.58 kristaps 705:
706: v = su->scale;
707:
708: switch (su->unit) {
709: case (SCALE_CM):
710: u = "cm";
711: break;
712: case (SCALE_IN):
713: u = "in";
714: break;
715: case (SCALE_PC):
716: u = "pc";
717: break;
718: case (SCALE_PT):
719: u = "pt";
720: break;
1.59 kristaps 721: case (SCALE_EM):
722: u = "em";
723: break;
1.58 kristaps 724: case (SCALE_MM):
725: if (0 == (v /= 100))
726: v = 1;
727: u = "em";
728: break;
1.59 kristaps 729: case (SCALE_EN):
730: u = "ex";
731: break;
732: case (SCALE_BU):
733: u = "ex";
734: break;
1.58 kristaps 735: case (SCALE_VS):
736: u = "em";
737: break;
738: default:
739: u = "ex";
740: break;
741: }
742:
1.103 kristaps 743: /*
744: * XXX: the CSS spec isn't clear as to which types accept
745: * integer or real numbers, so we just make them all decimals.
746: */
747: buffmt(h, "%s: %.2f%s;", p, v, u);
1.58 kristaps 748: }
1.65 kristaps 749:
1.68 kristaps 750:
751: void
1.70 kristaps 752: html_idcat(char *dst, const char *src, int sz)
1.68 kristaps 753: {
1.70 kristaps 754: int ssz;
1.68 kristaps 755:
756: assert(sz);
757:
758: /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
759:
1.70 kristaps 760: for ( ; *dst != '\0' && sz; dst++, sz--)
1.68 kristaps 761: /* Jump to end. */ ;
762:
1.70 kristaps 763: assert(sz > 2);
1.68 kristaps 764:
1.70 kristaps 765: /* We can't start with a number (bah). */
1.68 kristaps 766:
1.70 kristaps 767: *dst++ = 'x';
1.68 kristaps 768: *dst = '\0';
1.70 kristaps 769: sz--;
770:
771: for ( ; *src != '\0' && sz > 1; src++) {
1.73 kristaps 772: ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
1.70 kristaps 773: sz -= ssz;
774: dst += ssz;
775: }
1.68 kristaps 776: }
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