Annotation of src/usr.bin/mandoc/html.c, Revision 1.65
1.65 ! schwarze 1: /* $OpenBSD: html.c,v 1.64 2017/01/17 01:47:46 schwarze Exp $ */
1.1 schwarze 2: /*
1.42 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.64 schwarze 4: * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
1.56 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.1 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.56 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.1 schwarze 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.
17: */
18: #include <sys/types.h>
19:
20: #include <assert.h>
1.3 schwarze 21: #include <ctype.h>
1.4 schwarze 22: #include <stdarg.h>
1.1 schwarze 23: #include <stdio.h>
24: #include <stdint.h>
25: #include <stdlib.h>
26: #include <string.h>
27: #include <unistd.h>
28:
1.9 schwarze 29: #include "mandoc.h"
1.34 schwarze 30: #include "mandoc_aux.h"
1.1 schwarze 31: #include "out.h"
32: #include "html.h"
1.56 schwarze 33: #include "manconf.h"
1.1 schwarze 34: #include "main.h"
35:
36: struct htmldata {
37: const char *name;
38: int flags;
39: #define HTML_CLRLINE (1 << 0)
40: #define HTML_NOSTACK (1 << 1)
1.6 schwarze 41: #define HTML_AUTOCLOSE (1 << 2) /* Tag has auto-closure. */
1.1 schwarze 42: };
43:
44: static const struct htmldata htmltags[TAG_MAX] = {
45: {"html", HTML_CLRLINE}, /* TAG_HTML */
46: {"head", HTML_CLRLINE}, /* TAG_HEAD */
47: {"body", HTML_CLRLINE}, /* TAG_BODY */
1.6 schwarze 48: {"meta", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */
1.1 schwarze 49: {"title", HTML_CLRLINE}, /* TAG_TITLE */
50: {"div", HTML_CLRLINE}, /* TAG_DIV */
51: {"h1", 0}, /* TAG_H1 */
52: {"h2", 0}, /* TAG_H2 */
53: {"span", 0}, /* TAG_SPAN */
1.8 schwarze 54: {"link", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
1.6 schwarze 55: {"br", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */
1.1 schwarze 56: {"a", 0}, /* TAG_A */
57: {"table", HTML_CLRLINE}, /* TAG_TABLE */
1.18 schwarze 58: {"tbody", HTML_CLRLINE}, /* TAG_TBODY */
1.6 schwarze 59: {"col", HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_COL */
1.1 schwarze 60: {"tr", HTML_CLRLINE}, /* TAG_TR */
61: {"td", HTML_CLRLINE}, /* TAG_TD */
62: {"li", HTML_CLRLINE}, /* TAG_LI */
63: {"ul", HTML_CLRLINE}, /* TAG_UL */
64: {"ol", HTML_CLRLINE}, /* TAG_OL */
1.18 schwarze 65: {"dl", HTML_CLRLINE}, /* TAG_DL */
66: {"dt", HTML_CLRLINE}, /* TAG_DT */
67: {"dd", HTML_CLRLINE}, /* TAG_DD */
68: {"blockquote", HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
69: {"pre", HTML_CLRLINE }, /* TAG_PRE */
1.19 schwarze 70: {"b", 0 }, /* TAG_B */
71: {"i", 0 }, /* TAG_I */
1.20 schwarze 72: {"code", 0 }, /* TAG_CODE */
73: {"small", 0 }, /* TAG_SMALL */
1.42 schwarze 74: {"style", HTML_CLRLINE}, /* TAG_STYLE */
1.43 schwarze 75: {"math", HTML_CLRLINE}, /* TAG_MATH */
76: {"mrow", 0}, /* TAG_MROW */
77: {"mi", 0}, /* TAG_MI */
78: {"mo", 0}, /* TAG_MO */
79: {"msup", 0}, /* TAG_MSUP */
80: {"msub", 0}, /* TAG_MSUB */
81: {"msubsup", 0}, /* TAG_MSUBSUP */
82: {"mfrac", 0}, /* TAG_MFRAC */
83: {"msqrt", 0}, /* TAG_MSQRT */
84: {"mfenced", 0}, /* TAG_MFENCED */
85: {"mtable", 0}, /* TAG_MTABLE */
86: {"mtr", 0}, /* TAG_MTR */
87: {"mtd", 0}, /* TAG_MTD */
1.44 schwarze 88: {"munderover", 0}, /* TAG_MUNDEROVER */
89: {"munder", 0}, /* TAG_MUNDER*/
90: {"mover", 0}, /* TAG_MOVER*/
1.5 schwarze 91: };
92:
1.26 schwarze 93: static const char *const roffscales[SCALE_MAX] = {
94: "cm", /* SCALE_CM */
95: "in", /* SCALE_IN */
96: "pc", /* SCALE_PC */
97: "pt", /* SCALE_PT */
98: "em", /* SCALE_EM */
99: "em", /* SCALE_MM */
100: "ex", /* SCALE_EN */
101: "ex", /* SCALE_BU */
102: "em", /* SCALE_VS */
103: "ex", /* SCALE_FS */
104: };
1.5 schwarze 105:
1.64 schwarze 106: static void a2width(const char *, struct roffsu *);
1.54 schwarze 107: static void print_ctag(struct html *, struct tag *);
1.38 schwarze 108: static int print_escape(char);
1.65 ! schwarze 109: static int print_encode(struct html *, const char *, const char *, int);
! 110: static void print_href(struct html *, const char *, const char *, int);
1.26 schwarze 111: static void print_metaf(struct html *, enum mandoc_esc);
1.5 schwarze 112:
1.35 schwarze 113:
1.50 schwarze 114: void *
1.61 schwarze 115: html_alloc(const struct manoutput *outopts)
1.1 schwarze 116: {
117: struct html *h;
118:
1.24 schwarze 119: h = mandoc_calloc(1, sizeof(struct html));
1.1 schwarze 120:
1.2 schwarze 121: h->tags.head = NULL;
1.56 schwarze 122: h->style = outopts->style;
123: h->base_man = outopts->man;
124: h->base_includes = outopts->includes;
125: if (outopts->fragment)
126: h->oflags |= HTML_FRAGMENT;
1.1 schwarze 127:
1.58 schwarze 128: return h;
1.1 schwarze 129: }
130:
131: void
132: html_free(void *p)
133: {
134: struct tag *tag;
135: struct html *h;
136:
137: h = (struct html *)p;
138:
1.2 schwarze 139: while ((tag = h->tags.head) != NULL) {
1.35 schwarze 140: h->tags.head = tag->next;
1.1 schwarze 141: free(tag);
142: }
143:
144: free(h);
145: }
146:
147: void
148: print_gen_head(struct html *h)
149: {
1.42 schwarze 150: struct tag *t;
151:
1.64 schwarze 152: print_otag(h, TAG_META, "?", "charset", "utf-8");
1.1 schwarze 153:
1.42 schwarze 154: /*
155: * Print a default style-sheet.
156: */
1.64 schwarze 157: t = print_otag(h, TAG_STYLE, "");
1.42 schwarze 158: print_text(h, "table.head, table.foot { width: 100%; }\n"
159: "td.head-rtitle, td.foot-os { text-align: right; }\n"
160: "td.head-vol { text-align: center; }\n"
161: "table.foot td { width: 50%; }\n"
162: "table.head td { width: 33%; }\n"
163: "div.spacer { margin: 1em 0; }\n");
164: print_tagq(h, t);
1.1 schwarze 165:
1.64 schwarze 166: if (h->style)
167: print_otag(h, TAG_LINK, "?h??", "rel", "stylesheet",
168: h->style, "type", "text/css", "media", "all");
1.1 schwarze 169: }
170:
1.5 schwarze 171: static void
1.26 schwarze 172: print_metaf(struct html *h, enum mandoc_esc deco)
1.5 schwarze 173: {
174: enum htmlfont font;
1.1 schwarze 175:
1.5 schwarze 176: switch (deco) {
1.35 schwarze 177: case ESCAPE_FONTPREV:
1.5 schwarze 178: font = h->metal;
179: break;
1.35 schwarze 180: case ESCAPE_FONTITALIC:
1.5 schwarze 181: font = HTMLFONT_ITALIC;
182: break;
1.35 schwarze 183: case ESCAPE_FONTBOLD:
1.5 schwarze 184: font = HTMLFONT_BOLD;
185: break;
1.35 schwarze 186: case ESCAPE_FONTBI:
1.31 schwarze 187: font = HTMLFONT_BI;
188: break;
1.35 schwarze 189: case ESCAPE_FONT:
190: case ESCAPE_FONTROMAN:
1.5 schwarze 191: font = HTMLFONT_NONE;
192: break;
193: default:
194: abort();
1.1 schwarze 195: }
196:
1.20 schwarze 197: if (h->metaf) {
198: print_tagq(h, h->metaf);
199: h->metaf = NULL;
200: }
201:
202: h->metal = h->metac;
203: h->metac = font;
204:
1.31 schwarze 205: switch (font) {
1.35 schwarze 206: case HTMLFONT_ITALIC:
1.64 schwarze 207: h->metaf = print_otag(h, TAG_I, "");
1.31 schwarze 208: break;
1.35 schwarze 209: case HTMLFONT_BOLD:
1.64 schwarze 210: h->metaf = print_otag(h, TAG_B, "");
1.31 schwarze 211: break;
1.35 schwarze 212: case HTMLFONT_BI:
1.64 schwarze 213: h->metaf = print_otag(h, TAG_B, "");
214: print_otag(h, TAG_I, "");
1.31 schwarze 215: break;
216: default:
217: break;
218: }
1.1 schwarze 219: }
220:
1.26 schwarze 221: int
222: html_strlen(const char *cp)
223: {
1.30 schwarze 224: size_t rsz;
225: int skip, sz;
1.26 schwarze 226:
227: /*
228: * Account for escaped sequences within string length
229: * calculations. This follows the logic in term_strlen() as we
230: * must calculate the width of produced strings.
231: * Assume that characters are always width of "1". This is
232: * hacky, but it gets the job done for approximation of widths.
233: */
234:
235: sz = 0;
1.30 schwarze 236: skip = 0;
237: while (1) {
238: rsz = strcspn(cp, "\\");
239: if (rsz) {
240: cp += rsz;
241: if (skip) {
242: skip = 0;
243: rsz--;
244: }
245: sz += rsz;
246: }
247: if ('\0' == *cp)
248: break;
249: cp++;
250: switch (mandoc_escape(&cp, NULL, NULL)) {
1.35 schwarze 251: case ESCAPE_ERROR:
1.58 schwarze 252: return sz;
1.35 schwarze 253: case ESCAPE_UNICODE:
254: case ESCAPE_NUMBERED:
255: case ESCAPE_SPECIAL:
1.55 schwarze 256: case ESCAPE_OVERSTRIKE:
1.30 schwarze 257: if (skip)
258: skip = 0;
259: else
260: sz++;
261: break;
1.35 schwarze 262: case ESCAPE_SKIPCHAR:
1.30 schwarze 263: skip = 1;
1.26 schwarze 264: break;
265: default:
266: break;
267: }
268: }
1.58 schwarze 269: return sz;
1.26 schwarze 270: }
1.1 schwarze 271:
1.5 schwarze 272: static int
1.38 schwarze 273: print_escape(char c)
274: {
275:
276: switch (c) {
277: case '<':
278: printf("<");
279: break;
280: case '>':
281: printf(">");
282: break;
283: case '&':
284: printf("&");
285: break;
286: case '"':
287: printf(""");
288: break;
289: case ASCII_NBRSP:
1.60 schwarze 290: printf(" ");
1.38 schwarze 291: break;
292: case ASCII_HYPH:
293: putchar('-');
1.59 schwarze 294: break;
1.38 schwarze 295: case ASCII_BREAK:
296: break;
297: default:
1.58 schwarze 298: return 0;
1.38 schwarze 299: }
1.58 schwarze 300: return 1;
1.38 schwarze 301: }
302:
303: static int
1.65 ! schwarze 304: print_encode(struct html *h, const char *p, const char *pend, int norecurse)
1.1 schwarze 305: {
1.4 schwarze 306: size_t sz;
1.26 schwarze 307: int c, len, nospace;
1.5 schwarze 308: const char *seq;
1.26 schwarze 309: enum mandoc_esc esc;
1.37 schwarze 310: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.33 schwarze 311: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.5 schwarze 312:
1.65 ! schwarze 313: if (pend == NULL)
! 314: pend = strchr(p, '\0');
! 315:
1.5 schwarze 316: nospace = 0;
1.1 schwarze 317:
1.65 ! schwarze 318: while (p < pend) {
1.30 schwarze 319: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
320: h->flags &= ~HTML_SKIPCHAR;
321: p++;
322: continue;
323: }
324:
1.9 schwarze 325: sz = strcspn(p, rejs);
1.65 ! schwarze 326: if (p + sz > pend)
! 327: sz = pend - p;
1.4 schwarze 328:
329: fwrite(p, 1, sz, stdout);
1.26 schwarze 330: p += (int)sz;
1.4 schwarze 331:
1.65 ! schwarze 332: if (p >= pend)
1.26 schwarze 333: break;
334:
1.38 schwarze 335: if (print_escape(*p++))
1.33 schwarze 336: continue;
1.4 schwarze 337:
1.26 schwarze 338: esc = mandoc_escape(&p, &seq, &len);
339: if (ESCAPE_ERROR == esc)
340: break;
1.5 schwarze 341:
1.26 schwarze 342: switch (esc) {
1.35 schwarze 343: case ESCAPE_FONT:
344: case ESCAPE_FONTPREV:
345: case ESCAPE_FONTBOLD:
346: case ESCAPE_FONTITALIC:
347: case ESCAPE_FONTBI:
348: case ESCAPE_FONTROMAN:
1.30 schwarze 349: if (0 == norecurse)
350: print_metaf(h, esc);
351: continue;
1.35 schwarze 352: case ESCAPE_SKIPCHAR:
1.30 schwarze 353: h->flags |= HTML_SKIPCHAR;
354: continue;
355: default:
356: break;
357: }
358:
359: if (h->flags & HTML_SKIPCHAR) {
360: h->flags &= ~HTML_SKIPCHAR;
361: continue;
362: }
363:
364: switch (esc) {
1.35 schwarze 365: case ESCAPE_UNICODE:
1.38 schwarze 366: /* Skip past "u" header. */
1.26 schwarze 367: c = mchars_num2uc(seq + 1, len - 1);
368: break;
1.35 schwarze 369: case ESCAPE_NUMBERED:
1.26 schwarze 370: c = mchars_num2char(seq, len);
1.51 schwarze 371: if (c < 0)
372: continue;
1.26 schwarze 373: break;
1.35 schwarze 374: case ESCAPE_SPECIAL:
1.61 schwarze 375: c = mchars_spec2cp(seq, len);
1.51 schwarze 376: if (c <= 0)
377: continue;
1.26 schwarze 378: break;
1.35 schwarze 379: case ESCAPE_NOSPACE:
1.26 schwarze 380: if ('\0' == *p)
381: nospace = 1;
1.49 schwarze 382: continue;
1.55 schwarze 383: case ESCAPE_OVERSTRIKE:
384: if (len == 0)
385: continue;
386: c = seq[len - 1];
387: break;
1.5 schwarze 388: default:
1.49 schwarze 389: continue;
1.5 schwarze 390: }
1.51 schwarze 391: if ((c < 0x20 && c != 0x09) ||
392: (c > 0x7E && c < 0xA0))
1.49 schwarze 393: c = 0xFFFD;
394: if (c > 0x7E)
395: printf("&#%d;", c);
396: else if ( ! print_escape(c))
397: putchar(c);
1.1 schwarze 398: }
1.5 schwarze 399:
1.58 schwarze 400: return nospace;
1.1 schwarze 401: }
402:
1.6 schwarze 403: static void
1.65 ! schwarze 404: print_href(struct html *h, const char *name, const char *sec, int man)
1.6 schwarze 405: {
1.65 ! schwarze 406: const char *p, *pp;
! 407:
! 408: pp = man ? h->base_man : h->base_includes;
! 409: while ((p = strchr(pp, '%')) != NULL) {
! 410: print_encode(h, pp, p, 1);
! 411: if (man && p[1] == 'S') {
! 412: if (sec == NULL)
! 413: putchar('1');
! 414: else
! 415: print_encode(h, sec, NULL, 1);
! 416: } else if ((man && p[1] == 'N') ||
! 417: (man == 0 && p[1] == 'I'))
! 418: print_encode(h, name, NULL, 1);
! 419: else
! 420: print_encode(h, p, p + 2, 1);
! 421: pp = p + 2;
! 422: }
! 423: if (*pp != '\0')
! 424: print_encode(h, pp, NULL, 1);
1.6 schwarze 425: }
426:
1.1 schwarze 427: struct tag *
1.64 schwarze 428: print_otag(struct html *h, enum htmltag tag, const char *fmt, ...)
1.1 schwarze 429: {
1.64 schwarze 430: va_list ap;
431: struct roffsu mysu, *su;
1.1 schwarze 432: struct tag *t;
1.65 ! schwarze 433: const char *attr;
1.64 schwarze 434: char *s;
1.65 ! schwarze 435: double v;
1.64 schwarze 436: int i, have_style;
1.1 schwarze 437:
1.6 schwarze 438: /* Push this tags onto the stack of open scopes. */
439:
1.1 schwarze 440: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.24 schwarze 441: t = mandoc_malloc(sizeof(struct tag));
1.1 schwarze 442: t->tag = tag;
1.2 schwarze 443: t->next = h->tags.head;
444: h->tags.head = t;
1.1 schwarze 445: } else
446: t = NULL;
447:
448: if ( ! (HTML_NOSPACE & h->flags))
1.12 schwarze 449: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
450: /* Manage keeps! */
451: if ( ! (HTML_KEEP & h->flags)) {
452: if (HTML_PREKEEP & h->flags)
453: h->flags |= HTML_KEEP;
454: putchar(' ');
455: } else
456: printf(" ");
457: }
1.1 schwarze 458:
1.13 schwarze 459: if ( ! (h->flags & HTML_NONOSPACE))
460: h->flags &= ~HTML_NOSPACE;
1.14 schwarze 461: else
462: h->flags |= HTML_NOSPACE;
1.13 schwarze 463:
1.6 schwarze 464: /* Print out the tag name and attributes. */
465:
1.1 schwarze 466: printf("<%s", htmltags[tag].name);
1.64 schwarze 467:
468: va_start(ap, fmt);
469:
470: have_style = 0;
471: while (*fmt != '\0') {
472: if (*fmt == 's') {
473: printf(" style=\"");
474: have_style = 1;
475: fmt++;
476: break;
477: }
478: s = va_arg(ap, char *);
479: switch (*fmt++) {
480: case 'c':
1.65 ! schwarze 481: attr = "class";
1.64 schwarze 482: break;
483: case 'h':
1.65 ! schwarze 484: attr = "href";
1.64 schwarze 485: break;
486: case 'i':
1.65 ! schwarze 487: attr = "id";
1.64 schwarze 488: break;
489: case '?':
1.65 ! schwarze 490: attr = s;
! 491: s = va_arg(ap, char *);
1.64 schwarze 492: break;
493: default:
494: abort();
495: }
1.65 ! schwarze 496: printf(" %s=\"", attr);
! 497: switch (*fmt) {
! 498: case 'M':
! 499: print_href(h, s, va_arg(ap, char *), 1);
! 500: fmt++;
! 501: break;
! 502: case 'I':
! 503: print_href(h, s, NULL, 0);
! 504: fmt++;
! 505: break;
! 506: case 'R':
! 507: putchar('#');
! 508: fmt++;
! 509: /* FALLTHROUGH */
! 510: default:
! 511: print_encode(h, s, NULL, 1);
! 512: break;
! 513: }
! 514: putchar('"');
1.64 schwarze 515: }
516:
517: /* Print out styles. */
518:
519: s = NULL;
520: su = &mysu;
521: while (*fmt != '\0') {
522:
523: /* First letter: input argument type. */
524:
525: switch (*fmt++) {
526: case 'h':
527: i = va_arg(ap, int);
528: SCALE_HS_INIT(su, i);
529: break;
530: case 's':
531: s = va_arg(ap, char *);
532: break;
533: case 'u':
534: su = va_arg(ap, struct roffsu *);
535: break;
536: case 'v':
537: i = va_arg(ap, int);
538: SCALE_VS_INIT(su, i);
539: break;
540: case 'w':
541: s = va_arg(ap, char *);
542: a2width(s, su);
543: break;
544: default:
545: abort();
546: }
547:
548: /* Second letter: style name. */
549:
550: switch (*fmt++) {
551: case 'b':
1.65 ! schwarze 552: attr = "margin-bottom";
1.64 schwarze 553: break;
554: case 'h':
1.65 ! schwarze 555: attr = "height";
1.64 schwarze 556: break;
557: case 'i':
1.65 ! schwarze 558: attr = "text-indent";
1.64 schwarze 559: break;
560: case 'l':
1.65 ! schwarze 561: attr = "margin-left";
1.64 schwarze 562: break;
563: case 't':
1.65 ! schwarze 564: attr = "margin-top";
1.64 schwarze 565: break;
566: case 'w':
1.65 ! schwarze 567: attr = "width";
1.64 schwarze 568: break;
569: case 'W':
1.65 ! schwarze 570: attr = "min-width";
1.64 schwarze 571: break;
572: case '?':
1.65 ! schwarze 573: printf("%s: %s;", s, va_arg(ap, char *));
! 574: continue;
1.64 schwarze 575: default:
576: abort();
577: }
1.65 ! schwarze 578: v = su->scale;
! 579: if (su->unit == SCALE_MM && (v /= 100.0) == 0.0)
! 580: v = 1.0;
! 581: else if (su->unit == SCALE_BU)
! 582: v /= 24.0;
! 583: printf("%s: %.2f%s;", attr, v, roffscales[su->unit]);
1.64 schwarze 584: }
585: if (have_style)
586: putchar('"');
587:
588: va_end(ap);
1.6 schwarze 589:
1.42 schwarze 590: /* Accommodate for "well-formed" singleton escaping. */
1.6 schwarze 591:
592: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.42 schwarze 593: putchar('/');
1.6 schwarze 594:
1.4 schwarze 595: putchar('>');
1.1 schwarze 596:
597: h->flags |= HTML_NOSPACE;
1.18 schwarze 598:
599: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
600: putchar('\n');
601:
1.58 schwarze 602: return t;
1.1 schwarze 603: }
604:
605: static void
1.54 schwarze 606: print_ctag(struct html *h, struct tag *tag)
1.1 schwarze 607: {
1.35 schwarze 608:
1.54 schwarze 609: /*
610: * Remember to close out and nullify the current
611: * meta-font and table, if applicable.
612: */
613: if (tag == h->metaf)
614: h->metaf = NULL;
615: if (tag == h->tblt)
616: h->tblt = NULL;
617:
618: printf("</%s>", htmltags[tag->tag].name);
619: if (HTML_CLRLINE & htmltags[tag->tag].flags) {
1.1 schwarze 620: h->flags |= HTML_NOSPACE;
1.4 schwarze 621: putchar('\n');
1.35 schwarze 622: }
1.54 schwarze 623:
624: h->tags.head = tag->next;
625: free(tag);
1.1 schwarze 626: }
627:
628: void
1.6 schwarze 629: print_gen_decls(struct html *h)
630: {
631:
1.42 schwarze 632: puts("<!DOCTYPE html>");
1.1 schwarze 633: }
634:
635: void
1.12 schwarze 636: print_text(struct html *h, const char *word)
1.1 schwarze 637: {
638:
1.12 schwarze 639: if ( ! (HTML_NOSPACE & h->flags)) {
640: /* Manage keeps! */
641: if ( ! (HTML_KEEP & h->flags)) {
642: if (HTML_PREKEEP & h->flags)
643: h->flags |= HTML_KEEP;
644: putchar(' ');
645: } else
646: printf(" ");
647: }
1.1 schwarze 648:
1.20 schwarze 649: assert(NULL == h->metaf);
1.31 schwarze 650: switch (h->metac) {
1.35 schwarze 651: case HTMLFONT_ITALIC:
1.64 schwarze 652: h->metaf = print_otag(h, TAG_I, "");
1.31 schwarze 653: break;
1.35 schwarze 654: case HTMLFONT_BOLD:
1.64 schwarze 655: h->metaf = print_otag(h, TAG_B, "");
1.31 schwarze 656: break;
1.35 schwarze 657: case HTMLFONT_BI:
1.64 schwarze 658: h->metaf = print_otag(h, TAG_B, "");
659: print_otag(h, TAG_I, "");
1.31 schwarze 660: break;
661: default:
662: break;
663: }
1.20 schwarze 664:
1.12 schwarze 665: assert(word);
1.65 ! schwarze 666: if ( ! print_encode(h, word, NULL, 0)) {
1.13 schwarze 667: if ( ! (h->flags & HTML_NONOSPACE))
668: h->flags &= ~HTML_NOSPACE;
1.53 schwarze 669: h->flags &= ~HTML_NONEWLINE;
1.28 schwarze 670: } else
1.53 schwarze 671: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.20 schwarze 672:
673: if (h->metaf) {
674: print_tagq(h, h->metaf);
675: h->metaf = NULL;
676: }
1.17 schwarze 677:
678: h->flags &= ~HTML_IGNDELIM;
1.1 schwarze 679: }
680:
681: void
682: print_tagq(struct html *h, const struct tag *until)
683: {
684: struct tag *tag;
685:
1.2 schwarze 686: while ((tag = h->tags.head) != NULL) {
1.54 schwarze 687: print_ctag(h, tag);
1.1 schwarze 688: if (until && tag == until)
689: return;
690: }
691: }
692:
693: void
694: print_stagq(struct html *h, const struct tag *suntil)
695: {
696: struct tag *tag;
697:
1.2 schwarze 698: while ((tag = h->tags.head) != NULL) {
1.1 schwarze 699: if (suntil && tag == suntil)
700: return;
1.54 schwarze 701: print_ctag(h, tag);
1.1 schwarze 702: }
703: }
1.42 schwarze 704:
705: void
706: print_paragraph(struct html *h)
707: {
708: struct tag *t;
709:
1.64 schwarze 710: t = print_otag(h, TAG_DIV, "c", "spacer");
1.42 schwarze 711: print_tagq(h, t);
712: }
713:
1.64 schwarze 714:
715: /*
716: * Calculate the scaling unit passed in a `-width' argument. This uses
717: * either a native scaling unit (e.g., 1i, 2m) or the string length of
718: * the value.
719: */
720: static void
721: a2width(const char *p, struct roffsu *su)
722: {
723: if (a2roffsu(p, su, SCALE_MAX) < 2) {
724: su->unit = SCALE_EN;
725: su->scale = html_strlen(p);
726: } else if (su->scale < 0.0)
727: su->scale = 0.0;
1.3 schwarze 728: }
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