Annotation of mandoc/html.c, Revision 1.194
1.194 ! schwarze 1: /* $Id: html.c,v 1.193 2017/01/08 16:38:26 schwarze Exp $ */
1.1 kristaps 2: /*
1.176 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.194 ! schwarze 4: * Copyright (c) 2011-2015, 2017 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:
1.140 kristaps 95: static const char *const roffscales[SCALE_MAX] = {
96: "cm", /* SCALE_CM */
97: "in", /* SCALE_IN */
98: "pc", /* SCALE_PC */
99: "pt", /* SCALE_PT */
100: "em", /* SCALE_EM */
101: "em", /* SCALE_MM */
102: "ex", /* SCALE_EN */
103: "ex", /* SCALE_BU */
104: "em", /* SCALE_VS */
105: "ex", /* SCALE_FS */
106: };
107:
1.194 ! schwarze 108: static void a2width(const char *, struct roffsu *);
1.141 kristaps 109: static void bufncat(struct html *, const char *, size_t);
1.184 schwarze 110: static void print_ctag(struct html *, struct tag *);
1.159 schwarze 111: static int print_escape(char);
1.141 kristaps 112: static int print_encode(struct html *, const char *, int);
113: static void print_metaf(struct html *, enum mandoc_esc);
114: static void print_attr(struct html *, const char *, const char *);
1.82 kristaps 115:
1.156 schwarze 116:
1.180 schwarze 117: void *
1.191 schwarze 118: html_alloc(const struct manoutput *outopts)
1.10 kristaps 119: {
1.30 kristaps 120: struct html *h;
121:
1.128 kristaps 122: h = mandoc_calloc(1, sizeof(struct html));
1.10 kristaps 123:
1.66 kristaps 124: h->tags.head = NULL;
1.186 schwarze 125: h->style = outopts->style;
126: h->base_man = outopts->man;
127: h->base_includes = outopts->includes;
128: if (outopts->fragment)
129: h->oflags |= HTML_FRAGMENT;
1.43 kristaps 130:
1.188 schwarze 131: return h;
1.29 kristaps 132: }
1.10 kristaps 133:
1.29 kristaps 134: void
135: html_free(void *p)
136: {
1.30 kristaps 137: struct tag *tag;
138: struct html *h;
139:
140: h = (struct html *)p;
1.37 kristaps 141:
1.66 kristaps 142: while ((tag = h->tags.head) != NULL) {
1.156 schwarze 143: h->tags.head = tag->next;
1.30 kristaps 144: free(tag);
145: }
1.53 kristaps 146:
1.30 kristaps 147: free(h);
1.10 kristaps 148: }
1.2 kristaps 149:
1.51 kristaps 150: void
1.29 kristaps 151: print_gen_head(struct html *h)
152: {
1.165 kristaps 153: struct tag *t;
1.41 kristaps 154:
1.194 ! schwarze 155: print_otag(h, TAG_META, "?", "charset", "utf-8");
1.165 kristaps 156:
1.168 kristaps 157: /*
158: * Print a default style-sheet.
159: */
1.194 ! schwarze 160: t = print_otag(h, TAG_STYLE, "");
1.168 kristaps 161: print_text(h, "table.head, table.foot { width: 100%; }\n"
1.169 kristaps 162: "td.head-rtitle, td.foot-os { text-align: right; }\n"
1.170 kristaps 163: "td.head-vol { text-align: center; }\n"
164: "table.foot td { width: 50%; }\n"
1.171 kristaps 165: "table.head td { width: 33%; }\n"
166: "div.spacer { margin: 1em 0; }\n");
1.165 kristaps 167: print_tagq(h, t);
1.41 kristaps 168:
1.194 ! schwarze 169: if (h->style)
! 170: print_otag(h, TAG_LINK, "?h??", "rel", "stylesheet",
! 171: h->style, "type", "text/css", "media", "all");
1.4 kristaps 172: }
173:
1.126 schwarze 174: static void
1.132 kristaps 175: print_metaf(struct html *h, enum mandoc_esc deco)
1.88 kristaps 176: {
1.90 kristaps 177: enum htmlfont font;
1.88 kristaps 178:
179: switch (deco) {
1.156 schwarze 180: case ESCAPE_FONTPREV:
1.90 kristaps 181: font = h->metal;
1.88 kristaps 182: break;
1.156 schwarze 183: case ESCAPE_FONTITALIC:
1.90 kristaps 184: font = HTMLFONT_ITALIC;
185: break;
1.156 schwarze 186: case ESCAPE_FONTBOLD:
1.90 kristaps 187: font = HTMLFONT_BOLD;
1.88 kristaps 188: break;
1.156 schwarze 189: case ESCAPE_FONTBI:
1.152 schwarze 190: font = HTMLFONT_BI;
191: break;
1.156 schwarze 192: case ESCAPE_FONT:
193: case ESCAPE_FONTROMAN:
1.90 kristaps 194: font = HTMLFONT_NONE;
1.88 kristaps 195: break;
196: default:
197: abort();
198: }
199:
1.122 kristaps 200: if (h->metaf) {
201: print_tagq(h, h->metaf);
202: h->metaf = NULL;
203: }
204:
205: h->metal = h->metac;
206: h->metac = font;
207:
1.152 schwarze 208: switch (font) {
1.156 schwarze 209: case HTMLFONT_ITALIC:
1.194 ! schwarze 210: h->metaf = print_otag(h, TAG_I, "");
1.152 schwarze 211: break;
1.156 schwarze 212: case HTMLFONT_BOLD:
1.194 ! schwarze 213: h->metaf = print_otag(h, TAG_B, "");
1.152 schwarze 214: break;
1.156 schwarze 215: case HTMLFONT_BI:
1.194 ! schwarze 216: h->metaf = print_otag(h, TAG_B, "");
! 217: print_otag(h, TAG_I, "");
1.152 schwarze 218: break;
219: default:
220: break;
221: }
1.88 kristaps 222: }
223:
1.138 kristaps 224: int
225: html_strlen(const char *cp)
226: {
1.151 schwarze 227: size_t rsz;
228: int skip, sz;
1.138 kristaps 229:
230: /*
231: * Account for escaped sequences within string length
232: * calculations. This follows the logic in term_strlen() as we
233: * must calculate the width of produced strings.
234: * Assume that characters are always width of "1". This is
235: * hacky, but it gets the job done for approximation of widths.
236: */
237:
238: sz = 0;
1.151 schwarze 239: skip = 0;
240: while (1) {
241: rsz = strcspn(cp, "\\");
242: if (rsz) {
243: cp += rsz;
244: if (skip) {
245: skip = 0;
246: rsz--;
247: }
248: sz += rsz;
249: }
250: if ('\0' == *cp)
251: break;
252: cp++;
253: switch (mandoc_escape(&cp, NULL, NULL)) {
1.156 schwarze 254: case ESCAPE_ERROR:
1.188 schwarze 255: return sz;
1.156 schwarze 256: case ESCAPE_UNICODE:
257: case ESCAPE_NUMBERED:
258: case ESCAPE_SPECIAL:
1.185 schwarze 259: case ESCAPE_OVERSTRIKE:
1.151 schwarze 260: if (skip)
261: skip = 0;
262: else
263: sz++;
264: break;
1.156 schwarze 265: case ESCAPE_SKIPCHAR:
1.151 schwarze 266: skip = 1;
1.138 kristaps 267: break;
268: default:
269: break;
270: }
271: }
1.188 schwarze 272: return sz;
1.138 kristaps 273: }
1.88 kristaps 274:
1.85 kristaps 275: static int
1.159 schwarze 276: print_escape(char c)
277: {
278:
279: switch (c) {
280: case '<':
281: printf("<");
282: break;
283: case '>':
284: printf(">");
285: break;
286: case '&':
287: printf("&");
288: break;
289: case '"':
290: printf(""");
291: break;
292: case ASCII_NBRSP:
1.190 schwarze 293: printf(" ");
1.159 schwarze 294: break;
295: case ASCII_HYPH:
296: putchar('-');
1.189 schwarze 297: break;
1.159 schwarze 298: case ASCII_BREAK:
299: break;
300: default:
1.188 schwarze 301: return 0;
1.159 schwarze 302: }
1.188 schwarze 303: return 1;
1.159 schwarze 304: }
305:
306: static int
1.88 kristaps 307: print_encode(struct html *h, const char *p, int norecurse)
1.29 kristaps 308: {
1.77 kristaps 309: size_t sz;
1.141 kristaps 310: int c, len, nospace;
1.82 kristaps 311: const char *seq;
1.132 kristaps 312: enum mandoc_esc esc;
1.158 schwarze 313: static const char rejs[9] = { '\\', '<', '>', '&', '"',
1.154 schwarze 314: ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
1.14 kristaps 315:
1.85 kristaps 316: nospace = 0;
317:
1.132 kristaps 318: while ('\0' != *p) {
1.151 schwarze 319: if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
320: h->flags &= ~HTML_SKIPCHAR;
321: p++;
322: continue;
323: }
324:
1.100 kristaps 325: sz = strcspn(p, rejs);
1.77 kristaps 326:
327: fwrite(p, 1, sz, stdout);
1.132 kristaps 328: p += (int)sz;
1.77 kristaps 329:
1.132 kristaps 330: if ('\0' == *p)
331: break;
332:
1.159 schwarze 333: if (print_escape(*p++))
1.154 schwarze 334: continue;
1.77 kristaps 335:
1.132 kristaps 336: esc = mandoc_escape(&p, &seq, &len);
337: if (ESCAPE_ERROR == esc)
338: break;
1.82 kristaps 339:
1.132 kristaps 340: switch (esc) {
1.156 schwarze 341: case ESCAPE_FONT:
342: case ESCAPE_FONTPREV:
343: case ESCAPE_FONTBOLD:
344: case ESCAPE_FONTITALIC:
345: case ESCAPE_FONTBI:
346: case ESCAPE_FONTROMAN:
1.151 schwarze 347: if (0 == norecurse)
348: print_metaf(h, esc);
349: continue;
1.156 schwarze 350: case ESCAPE_SKIPCHAR:
1.151 schwarze 351: h->flags |= HTML_SKIPCHAR;
352: continue;
353: default:
354: break;
355: }
356:
357: if (h->flags & HTML_SKIPCHAR) {
358: h->flags &= ~HTML_SKIPCHAR;
359: continue;
360: }
361:
362: switch (esc) {
1.156 schwarze 363: case ESCAPE_UNICODE:
1.159 schwarze 364: /* Skip past "u" header. */
1.144 kristaps 365: c = mchars_num2uc(seq + 1, len - 1);
366: break;
1.156 schwarze 367: case ESCAPE_NUMBERED:
1.141 kristaps 368: c = mchars_num2char(seq, len);
1.181 schwarze 369: if (c < 0)
370: continue;
1.82 kristaps 371: break;
1.156 schwarze 372: case ESCAPE_SPECIAL:
1.191 schwarze 373: c = mchars_spec2cp(seq, len);
1.181 schwarze 374: if (c <= 0)
375: continue;
1.132 kristaps 376: break;
1.156 schwarze 377: case ESCAPE_NOSPACE:
1.132 kristaps 378: if ('\0' == *p)
379: nospace = 1;
1.179 schwarze 380: continue;
1.185 schwarze 381: case ESCAPE_OVERSTRIKE:
382: if (len == 0)
383: continue;
384: c = seq[len - 1];
385: break;
1.82 kristaps 386: default:
1.179 schwarze 387: continue;
1.82 kristaps 388: }
1.181 schwarze 389: if ((c < 0x20 && c != 0x09) ||
390: (c > 0x7E && c < 0xA0))
1.179 schwarze 391: c = 0xFFFD;
392: if (c > 0x7E)
393: printf("&#%d;", c);
394: else if ( ! print_escape(c))
395: putchar(c);
1.32 kristaps 396: }
1.85 kristaps 397:
1.188 schwarze 398: return nospace;
1.14 kristaps 399: }
400:
1.94 kristaps 401: static void
402: print_attr(struct html *h, const char *key, const char *val)
403: {
404: printf(" %s=\"", key);
405: (void)print_encode(h, val, 1);
406: putchar('\"');
407: }
408:
1.51 kristaps 409: struct tag *
1.194 ! schwarze 410: print_otag(struct html *h, enum htmltag tag, const char *fmt, ...)
1.14 kristaps 411: {
1.194 ! schwarze 412: va_list ap;
! 413: struct roffsu mysu, *su;
1.30 kristaps 414: struct tag *t;
1.194 ! schwarze 415: char *s;
! 416: int i, have_style;
1.30 kristaps 417:
1.94 kristaps 418: /* Push this tags onto the stack of open scopes. */
419:
1.30 kristaps 420: if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
1.128 kristaps 421: t = mandoc_malloc(sizeof(struct tag));
1.30 kristaps 422: t->tag = tag;
1.66 kristaps 423: t->next = h->tags.head;
424: h->tags.head = t;
1.30 kristaps 425: } else
426: t = NULL;
1.29 kristaps 427:
428: if ( ! (HTML_NOSPACE & h->flags))
1.105 kristaps 429: if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
430: /* Manage keeps! */
431: if ( ! (HTML_KEEP & h->flags)) {
432: if (HTML_PREKEEP & h->flags)
433: h->flags |= HTML_KEEP;
434: putchar(' ');
435: } else
436: printf(" ");
437: }
1.29 kristaps 438:
1.109 kristaps 439: if ( ! (h->flags & HTML_NONOSPACE))
440: h->flags &= ~HTML_NOSPACE;
1.110 kristaps 441: else
442: h->flags |= HTML_NOSPACE;
1.109 kristaps 443:
1.94 kristaps 444: /* Print out the tag name and attributes. */
445:
1.29 kristaps 446: printf("<%s", htmltags[tag].name);
1.194 ! schwarze 447:
! 448: va_start(ap, fmt);
! 449:
! 450: have_style = 0;
! 451: while (*fmt != '\0') {
! 452: if (*fmt == 's') {
! 453: printf(" style=\"");
! 454: have_style = 1;
! 455: fmt++;
! 456: break;
! 457: }
! 458: s = va_arg(ap, char *);
! 459: switch (*fmt++) {
! 460: case 'c':
! 461: print_attr(h, "class", s);
! 462: break;
! 463: case 'h':
! 464: print_attr(h, "href", s);
! 465: break;
! 466: case 'i':
! 467: print_attr(h, "id", s);
! 468: break;
! 469: case '?':
! 470: print_attr(h, s, va_arg(ap, char *));
! 471: break;
! 472: default:
! 473: abort();
! 474: }
! 475: }
! 476:
! 477: /* Print out styles. */
! 478:
! 479: s = NULL;
! 480: su = &mysu;
! 481: while (*fmt != '\0') {
! 482:
! 483: /* First letter: input argument type. */
! 484:
! 485: switch (*fmt++) {
! 486: case 'h':
! 487: i = va_arg(ap, int);
! 488: SCALE_HS_INIT(su, i);
! 489: break;
! 490: case 's':
! 491: s = va_arg(ap, char *);
! 492: break;
! 493: case 'u':
! 494: su = va_arg(ap, struct roffsu *);
! 495: break;
! 496: case 'v':
! 497: i = va_arg(ap, int);
! 498: SCALE_VS_INIT(su, i);
! 499: break;
! 500: case 'w':
! 501: s = va_arg(ap, char *);
! 502: a2width(s, su);
! 503: break;
! 504: default:
! 505: abort();
! 506: }
! 507:
! 508: /* Second letter: style name. */
! 509:
! 510: bufinit(h);
! 511: switch (*fmt++) {
! 512: case 'b':
! 513: bufcat_su(h, "margin-bottom", su);
! 514: break;
! 515: case 'h':
! 516: bufcat_su(h, "height", su);
! 517: break;
! 518: case 'i':
! 519: bufcat_su(h, "text-indent", su);
! 520: break;
! 521: case 'l':
! 522: bufcat_su(h, "margin-left", su);
! 523: break;
! 524: case 't':
! 525: bufcat_su(h, "margin-top", su);
! 526: break;
! 527: case 'w':
! 528: bufcat_su(h, "width", su);
! 529: break;
! 530: case 'W':
! 531: bufcat_su(h, "min-width", su);
! 532: break;
! 533: case '?':
! 534: bufcat_style(h, s, va_arg(ap, char *));
! 535: break;
! 536: default:
! 537: abort();
! 538: }
! 539: printf("%s", h->buf);
! 540: }
! 541: if (have_style)
! 542: putchar('"');
! 543:
! 544: va_end(ap);
1.94 kristaps 545:
1.172 kristaps 546: /* Accommodate for "well-formed" singleton escaping. */
1.94 kristaps 547:
1.93 kristaps 548: if (HTML_AUTOCLOSE & htmltags[tag].flags)
1.172 kristaps 549: putchar('/');
1.93 kristaps 550:
1.78 kristaps 551: putchar('>');
1.14 kristaps 552:
1.29 kristaps 553: h->flags |= HTML_NOSPACE;
1.117 kristaps 554:
555: if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
556: putchar('\n');
557:
1.188 schwarze 558: return t;
1.14 kristaps 559: }
560:
1.29 kristaps 561: static void
1.184 schwarze 562: print_ctag(struct html *h, struct tag *tag)
1.14 kristaps 563: {
1.156 schwarze 564:
1.184 schwarze 565: /*
566: * Remember to close out and nullify the current
567: * meta-font and table, if applicable.
568: */
569: if (tag == h->metaf)
570: h->metaf = NULL;
571: if (tag == h->tblt)
572: h->tblt = NULL;
573:
574: printf("</%s>", htmltags[tag->tag].name);
575: if (HTML_CLRLINE & htmltags[tag->tag].flags) {
1.29 kristaps 576: h->flags |= HTML_NOSPACE;
1.78 kristaps 577: putchar('\n');
1.156 schwarze 578: }
1.184 schwarze 579:
580: h->tags.head = tag->next;
581: free(tag);
1.14 kristaps 582: }
583:
1.51 kristaps 584: void
1.93 kristaps 585: print_gen_decls(struct html *h)
1.1 kristaps 586: {
1.93 kristaps 587:
1.164 kristaps 588: puts("<!DOCTYPE html>");
1.1 kristaps 589: }
590:
1.51 kristaps 591: void
1.104 kristaps 592: print_text(struct html *h, const char *word)
1.1 kristaps 593: {
594:
1.105 kristaps 595: if ( ! (HTML_NOSPACE & h->flags)) {
596: /* Manage keeps! */
597: if ( ! (HTML_KEEP & h->flags)) {
598: if (HTML_PREKEEP & h->flags)
599: h->flags |= HTML_KEEP;
600: putchar(' ');
601: } else
602: printf(" ");
603: }
1.30 kristaps 604:
1.122 kristaps 605: assert(NULL == h->metaf);
1.152 schwarze 606: switch (h->metac) {
1.156 schwarze 607: case HTMLFONT_ITALIC:
1.194 ! schwarze 608: h->metaf = print_otag(h, TAG_I, "");
1.152 schwarze 609: break;
1.156 schwarze 610: case HTMLFONT_BOLD:
1.194 ! schwarze 611: h->metaf = print_otag(h, TAG_B, "");
1.152 schwarze 612: break;
1.156 schwarze 613: case HTMLFONT_BI:
1.194 ! schwarze 614: h->metaf = print_otag(h, TAG_B, "");
! 615: print_otag(h, TAG_I, "");
1.152 schwarze 616: break;
617: default:
618: break;
619: }
1.122 kristaps 620:
1.104 kristaps 621: assert(word);
1.149 kristaps 622: if ( ! print_encode(h, word, 0)) {
1.109 kristaps 623: if ( ! (h->flags & HTML_NONOSPACE))
624: h->flags &= ~HTML_NOSPACE;
1.183 schwarze 625: h->flags &= ~HTML_NONEWLINE;
1.149 kristaps 626: } else
1.183 schwarze 627: h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
1.122 kristaps 628:
629: if (h->metaf) {
630: print_tagq(h, h->metaf);
631: h->metaf = NULL;
632: }
1.113 schwarze 633:
634: h->flags &= ~HTML_IGNDELIM;
1.1 kristaps 635: }
1.30 kristaps 636:
1.51 kristaps 637: void
1.30 kristaps 638: print_tagq(struct html *h, const struct tag *until)
639: {
640: struct tag *tag;
641:
1.66 kristaps 642: while ((tag = h->tags.head) != NULL) {
1.184 schwarze 643: print_ctag(h, tag);
1.30 kristaps 644: if (until && tag == until)
645: return;
646: }
647: }
648:
1.51 kristaps 649: void
1.30 kristaps 650: print_stagq(struct html *h, const struct tag *suntil)
651: {
652: struct tag *tag;
653:
1.66 kristaps 654: while ((tag = h->tags.head) != NULL) {
1.30 kristaps 655: if (suntil && tag == suntil)
656: return;
1.184 schwarze 657: print_ctag(h, tag);
1.30 kristaps 658: }
659: }
1.171 kristaps 660:
661: void
662: print_paragraph(struct html *h)
663: {
664: struct tag *t;
665:
1.194 ! schwarze 666: t = print_otag(h, TAG_DIV, "c", "spacer");
1.171 kristaps 667: print_tagq(h, t);
668: }
669:
1.194 ! schwarze 670:
! 671: /*
! 672: * Calculate the scaling unit passed in a `-width' argument. This uses
! 673: * either a native scaling unit (e.g., 1i, 2m) or the string length of
! 674: * the value.
! 675: */
! 676: static void
! 677: a2width(const char *p, struct roffsu *su)
! 678: {
! 679: if (a2roffsu(p, su, SCALE_MAX) < 2) {
! 680: su->unit = SCALE_EN;
! 681: su->scale = html_strlen(p);
! 682: } else if (su->scale < 0.0)
! 683: su->scale = 0.0;
! 684: }
1.55 kristaps 685:
686: void
687: bufinit(struct html *h)
688: {
689:
690: h->buf[0] = '\0';
691: h->buflen = 0;
692: }
693:
694: void
1.58 kristaps 695: bufcat_style(struct html *h, const char *key, const char *val)
696: {
697:
698: bufcat(h, key);
1.141 kristaps 699: bufcat(h, ":");
1.58 kristaps 700: bufcat(h, val);
1.141 kristaps 701: bufcat(h, ";");
1.58 kristaps 702: }
703:
704: void
1.55 kristaps 705: bufcat(struct html *h, const char *p)
706: {
1.157 schwarze 707:
708: /*
709: * XXX This is broken and not easy to fix.
710: * When using the -Oincludes option, buffmt_includes()
711: * may pass in strings overrunning BUFSIZ, causing a crash.
712: */
1.55 kristaps 713:
1.141 kristaps 714: h->buflen = strlcat(h->buf, p, BUFSIZ);
715: assert(h->buflen < BUFSIZ);
1.55 kristaps 716: }
717:
718: void
1.141 kristaps 719: bufcat_fmt(struct html *h, const char *fmt, ...)
1.55 kristaps 720: {
721: va_list ap;
722:
723: va_start(ap, fmt);
1.156 schwarze 724: (void)vsnprintf(h->buf + (int)h->buflen,
725: BUFSIZ - h->buflen - 1, fmt, ap);
1.55 kristaps 726: va_end(ap);
727: h->buflen = strlen(h->buf);
728: }
729:
1.141 kristaps 730: static void
1.55 kristaps 731: bufncat(struct html *h, const char *p, size_t sz)
732: {
733:
1.141 kristaps 734: assert(h->buflen + sz + 1 < BUFSIZ);
735: strncat(h->buf, p, sz);
1.55 kristaps 736: h->buflen += sz;
737: }
738:
739: void
740: buffmt_includes(struct html *h, const char *name)
741: {
742: const char *p, *pp;
743:
744: pp = h->base_includes;
1.156 schwarze 745:
1.143 kristaps 746: bufinit(h);
1.61 kristaps 747: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 748: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 749: switch (*(p + 1)) {
1.193 schwarze 750: case 'I':
1.55 kristaps 751: bufcat(h, name);
752: break;
753: default:
754: bufncat(h, p, 2);
755: break;
756: }
757: pp = p + 2;
758: }
759: if (pp)
760: bufcat(h, pp);
761: }
762:
763: void
1.156 schwarze 764: buffmt_man(struct html *h, const char *name, const char *sec)
1.55 kristaps 765: {
766: const char *p, *pp;
767:
768: pp = h->base_man;
1.156 schwarze 769:
1.143 kristaps 770: bufinit(h);
1.61 kristaps 771: while (NULL != (p = strchr(pp, '%'))) {
1.56 kristaps 772: bufncat(h, pp, (size_t)(p - pp));
1.55 kristaps 773: switch (*(p + 1)) {
1.156 schwarze 774: case 'S':
1.58 kristaps 775: bufcat(h, sec ? sec : "1");
1.55 kristaps 776: break;
1.156 schwarze 777: case 'N':
1.153 joerg 778: bufcat_fmt(h, "%s", name);
1.55 kristaps 779: break;
780: default:
781: bufncat(h, p, 2);
782: break;
783: }
784: pp = p + 2;
785: }
786: if (pp)
787: bufcat(h, pp);
788: }
1.58 kristaps 789:
790: void
791: bufcat_su(struct html *h, const char *p, const struct roffsu *su)
792: {
1.62 kristaps 793: double v;
1.58 kristaps 794:
795: v = su->scale;
1.140 kristaps 796: if (SCALE_MM == su->unit && 0.0 == (v /= 100.0))
797: v = 1.0;
1.162 kristaps 798: else if (SCALE_BU == su->unit)
799: v /= 24.0;
1.58 kristaps 800:
1.141 kristaps 801: bufcat_fmt(h, "%s: %.2f%s;", p, v, roffscales[su->unit]);
1.58 kristaps 802: }
1.68 kristaps 803:
804: void
1.142 kristaps 805: bufcat_id(struct html *h, const char *src)
1.68 kristaps 806: {
807:
1.192 schwarze 808: /* Cf. <http://www.w3.org/TR/html5/dom.html#the-id-attribute>. */
1.68 kristaps 809:
1.192 schwarze 810: for (; '\0' != *src; src++)
811: bufncat(h, *src == ' ' ? "_" : src, 1);
1.68 kristaps 812: }
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