1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
|
/* $Id: html.c,v 1.9 2008/12/05 19:45:15 kristaps Exp $ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/stat.h>
#include <assert.h>
#include <err.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "libmdocml.h"
#include "private.h"
#include "ml.h"
/* TODO: allow head/tail-less invocations (just "div" start). */
struct htmlnode {
int tok;
enum md_ns ns;
int *argc[ROFF_MAXLINEARG];
char *argv[ROFF_MAXLINEARG];
struct htmlnode *parent;
};
struct htmlq {
struct htmlnode *last;
};
static int html_loadcss(struct md_mbuf *, const char *);
static int html_alloc(void **);
static void html_free(void *);
static ssize_t html_endtag(struct md_mbuf *, void *,
const struct md_args *,
enum md_ns, int);
static ssize_t html_begintag(struct md_mbuf *, void *,
const struct md_args *,
enum md_ns, int,
const int *, const char **);
static int html_begin(struct md_mbuf *,
const struct md_args *,
const struct tm *,
const char *, const char *,
const char *, const char *);
static int html_printargs(struct md_mbuf *, int,
const char *, const int *,
const char **, size_t *);
static int html_end(struct md_mbuf *,
const struct md_args *);
static int html_blocktagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_blocktagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int html_blockheadtagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_blockheadtagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int html_blockbodytagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_blockbodytagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int html_inlinetagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_inlinetagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int
html_loadcss(struct md_mbuf *mbuf, const char *css)
{
size_t res, bufsz;
char *buf;
struct stat st;
int fd, c;
ssize_t ssz;
c = 0;
res = 0;
buf = NULL;
if (-1 == (fd = open(css, O_RDONLY, 0))) {
warn("%s", css);
return(0);
}
if (-1 == fstat(fd, &st)) {
warn("%s", css);
goto out;
}
bufsz = MAX(st.st_blksize, BUFSIZ);
if (NULL == (buf = malloc(bufsz))) {
warn("malloc");
goto out;
}
for (;;) {
if (-1 == (ssz = read(fd, buf, bufsz))) {
warn("%s", css);
goto out;
} else if (0 == ssz)
break;
if ( ! ml_nputs(mbuf, buf, (size_t)ssz, &res))
goto out;
}
c = 1;
out:
if (-1 == close(fd)) {
warn("%s", css);
c = 0;
}
if (buf)
free(buf);
return(c);
}
/* ARGSUSED */
static int
html_begin(struct md_mbuf *mbuf, const struct md_args *args,
const struct tm *tm, const char *os,
const char *title, const char *section,
const char *vol)
{
const char *preamble, *css, *trail;
char buf[512];
size_t res;
preamble =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n"
" \"http://www.w3.org/TR/html4/strict.dtd\">\n"
"<html>\n"
"<head>\n"
" <meta http-equiv=\"Content-Type\"\n"
" content=\"text/html;charset=utf-8\">\n"
" <meta name=\"resource-type\" content=\"document\">\n"
" <title>Manual Page for %s(%s)</title>\n";
css =
" <link rel=\"stylesheet\" type=\"text/css\"\n"
" href=\"%s\">\n";
trail =
"</head>\n"
"<body>\n"
"<div class=\"mdoc\">\n";
res = 0;
(void)snprintf(buf, sizeof(buf) - 1,
preamble, title, section);
if ( ! ml_puts(mbuf, buf, &res))
return(0);
assert(args->params.html.css);
if (HTML_CSS_EMBED & args->params.html.flags) {
if ( ! ml_puts(mbuf, " <style type=\"text/css\"><!--\n", &res))
return(0);
if ( ! html_loadcss(mbuf, args->params.html.css))
return(0);
if ( ! ml_puts(mbuf, " --!></style>\n", &res))
return(0);
} else {
(void)snprintf(buf, sizeof(buf) - 1, css,
args->params.html.css);
if ( ! ml_puts(mbuf, buf, &res))
return(0);
}
if ( ! ml_puts(mbuf, trail, &res))
return(0);
return(1);
}
/* ARGSUSED */
static int
html_end(struct md_mbuf *mbuf, const struct md_args *args)
{
return(ml_puts(mbuf, "</div></body>\n</html>", NULL));
}
/* ARGSUSED */
static int
html_blockbodytagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
return(ml_puts(mbuf, "div", res));
}
/* ARGSUSED */
static int
html_blockheadtagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
return(ml_puts(mbuf, "div", res));
}
/* ARGSUSED */
static int
html_blocktagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
return(ml_puts(mbuf, "div", res));
}
/* ARGSUSED */
static int
html_printargs(struct md_mbuf *mbuf, int tok, const char *ns,
const int *argc, const char **argv, size_t *res)
{
if ( ! ml_puts(mbuf, " class=\"", res))
return(0);
if ( ! ml_puts(mbuf, ns, res))
return(0);
if ( ! ml_puts(mbuf, "-", res))
return(0);
if ( ! ml_puts(mbuf, toknames[tok], res))
return(0);
return(ml_puts(mbuf, "\"", res));
}
/* ARGSUSED */
static int
html_blockheadtagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "head", argc, argv, res));
}
/* ARGSUSED */
static int
html_blockbodytagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "body", argc, argv, res));
}
/* ARGSUSED */
static int
html_blocktagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "block", argc, argv, res));
}
/* ARGSUSED */
static int
html_inlinetagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "inline", argc, argv, res));
}
/* ARGSUSED */
static int
html_inlinetagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
switch (tok) {
case (ROFF_Pp):
return(ml_puts(mbuf, "div", res));
default:
break;
}
return(ml_puts(mbuf, "span", res));
}
static ssize_t
html_begintag(struct md_mbuf *mbuf, void *data,
const struct md_args *args, enum md_ns ns,
int tok, const int *argc, const char **argv)
{
size_t res;
struct htmlq *q;
struct htmlnode *node;
assert(ns != MD_NS_DEFAULT);
res = 0;
assert(data);
q = (struct htmlq *)data;
if (NULL == (node = calloc(1, sizeof(struct htmlnode)))) {
warn("calloc");
return(-1);
}
node->parent = q->last;
node->tok = tok;
node->ns = ns;
q->last = node;
switch (ns) {
case (MD_NS_BLOCK):
if ( ! html_blocktagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_blocktagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
case (MD_NS_BODY):
if ( ! html_blockbodytagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_blockbodytagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
case (MD_NS_HEAD):
if ( ! html_blockheadtagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_blockheadtagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
default:
if ( ! html_inlinetagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_inlinetagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
}
return((ssize_t)res);
}
static ssize_t
html_endtag(struct md_mbuf *mbuf, void *data,
const struct md_args *args, enum md_ns ns, int tok)
{
size_t res;
struct htmlq *q;
struct htmlnode *node;
assert(ns != MD_NS_DEFAULT);
res = 0;
assert(data);
q = (struct htmlq *)data;
switch (ns) {
case (MD_NS_BLOCK):
if ( ! html_blocktagname(mbuf, args, tok, &res))
return(-1);
break;
case (MD_NS_BODY):
if ( ! html_blockbodytagname(mbuf, args, tok, &res))
return(-1);
break;
case (MD_NS_HEAD):
if ( ! html_blockheadtagname(mbuf, args, tok, &res))
return(-1);
break;
default:
if ( ! html_inlinetagname(mbuf, args, tok, &res))
return(-1);
break;
}
node = q->last;
q->last = node->parent;
free(node);
return((ssize_t)res);
}
static int
html_alloc(void **p)
{
if (NULL == (*p = calloc(1, sizeof(struct htmlq)))) {
warn("calloc");
return(0);
}
return(1);
}
static void
html_free(void *p)
{
struct htmlq *q;
struct htmlnode *n;
assert(p);
q = (struct htmlq *)p;
while ((n = q->last)) {
q->last = n->parent;
free(n);
}
free(q);
}
int
md_line_html(void *data, char *buf)
{
return(mlg_line((struct md_mlg *)data, buf));
}
int
md_exit_html(void *data, int flush)
{
return(mlg_exit((struct md_mlg *)data, flush));
}
void *
md_init_html(const struct md_args *args,
struct md_mbuf *mbuf, const struct md_rbuf *rbuf)
{
struct ml_cbs cbs;
cbs.ml_alloc = html_alloc;
cbs.ml_free = html_free;
cbs.ml_begintag = html_begintag;
cbs.ml_endtag = html_endtag;
cbs.ml_begin = html_begin;
cbs.ml_end = html_end;
return(mlg_alloc(args, rbuf, mbuf, &cbs));
}
|
