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
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
|
/* $Id: read.c,v 1.60 2014/07/04 01:50:07 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2010, 2012 Joerg Sonnenberger <joerg@netbsd.org>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_MMAP
# include <sys/stat.h>
# include <sys/mman.h>
#endif
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mandoc.h"
#include "mandoc_aux.h"
#include "libmandoc.h"
#include "mdoc.h"
#include "man.h"
#include "main.h"
#define REPARSE_LIMIT 1000
struct buf {
char *buf; /* binary input buffer */
size_t sz; /* size of binary buffer */
};
struct mparse {
enum mandoclevel file_status; /* status of current parse */
enum mandoclevel wlevel; /* ignore messages below this */
int line; /* line number in the file */
int options; /* parser options */
struct man *pman; /* persistent man parser */
struct mdoc *pmdoc; /* persistent mdoc parser */
struct man *man; /* man parser */
struct mdoc *mdoc; /* mdoc parser */
struct roff *roff; /* roff parser (!NULL) */
char *sodest; /* filename pointed to by .so */
int reparse_count; /* finite interp. stack */
mandocmsg mmsg; /* warning/error message handler */
const char *file;
struct buf *secondary;
char *defos; /* default operating system */
};
static void resize_buf(struct buf *, size_t);
static void mparse_buf_r(struct mparse *, struct buf, int);
static void pset(const char *, int, struct mparse *);
static int read_whole_file(struct mparse *, const char *, int,
struct buf *, int *);
static void mparse_end(struct mparse *);
static void mparse_parse_buffer(struct mparse *, struct buf,
const char *);
static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
MANDOCERR_OK,
MANDOCERR_WARNING,
MANDOCERR_WARNING,
MANDOCERR_ERROR,
MANDOCERR_FATAL,
MANDOCERR_MAX,
MANDOCERR_MAX
};
static const char * const mandocerrs[MANDOCERR_MAX] = {
"ok",
"generic warning",
/* related to the prologue */
"missing .TH macro, using \"unknown 1\"",
"lower case character in document title",
"unknown manual section",
"unknown manual volume or arch",
"missing date, using today's date",
"cannot parse date, using it verbatim",
"prologue macros out of order",
"duplicate prologue macro",
"incomplete prologue, terminated by",
"skipping prologue macro in body",
/* related to document structure */
".so is fragile, better use ln(1)",
"no document body",
"content before first section header",
"first section is not \"NAME\"",
"bad NAME section contents",
"sections out of conventional order",
"duplicate section title",
"unexpected section",
/* related to macros and nesting */
"obsolete macro",
"skipping paragraph macro",
"moving paragraph macro out of list",
"skipping no-space macro",
"blocks badly nested",
"nested displays are not portable",
"moving content out of list",
".Vt block has child macro",
"fill mode already enabled, skipping .fi",
"fill mode already disabled, skipping .nf",
"line scope broken",
/* related to missing macro arguments */
"skipping empty request",
"conditional request controls empty scope",
"skipping empty macro",
"argument count wrong",
"missing display type, using -ragged",
"list type is not the first argument",
"missing -width in -tag list, using 8n",
"empty head in list item",
"empty list item",
"missing font type",
"missing -std argument, adding it",
/* related to bad macro arguments */
"skipping argument",
"duplicate argument",
"duplicate display type",
"duplicate list type",
"unknown AT&T UNIX version",
"bad Boolean value",
"unknown font",
"unknown standard specifier",
"bad width argument",
/* related to plain text */
"blank line in non-literal context",
"tab in non-literal context",
"end of line whitespace",
"bad comment style",
"bad escape sequence",
"unterminated quoted string",
"generic error",
/* related to equations */
"unexpected equation scope closure",
"equation scope open on exit",
"overlapping equation scopes",
"unexpected end of equation",
"equation syntax error",
/* related to tables */
"bad table syntax",
"bad table option",
"bad table layout",
"no table layout cells specified",
"no table data cells specified",
"ignore data in cell",
"data block still open",
"ignoring extra data cells",
"input stack limit exceeded, infinite loop?",
"skipping bad character",
"escaped character not allowed in a name",
"manual name not yet set",
"skipping text before first section header",
"skipping unknown macro",
"NOT IMPLEMENTED, please use groff: skipping request",
"argument count wrong",
"skipping invalid content in .Rs block",
"skipping column outside column list",
"skipping end of block that is not open",
"missing end of block",
"scope open on exit",
"uname(3) system call failed",
"request requires a numeric argument",
"missing list type, using -item",
"line argument(s) will be lost",
"generic fatal error",
"input too large",
"not a manual",
"column syntax is inconsistent",
"NOT IMPLEMENTED: .Bd -file",
"argument count wrong, violates syntax",
"child violates parent syntax",
"argument count wrong, violates syntax",
"NOT IMPLEMENTED: .so with absolute path or \"..\"",
".so request failed",
"no document prologue",
"static buffer exhausted",
/* system errors */
NULL,
"cannot stat file",
"cannot read file",
};
static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
"SUCCESS",
"RESERVED",
"WARNING",
"ERROR",
"FATAL",
"BADARG",
"SYSERR"
};
static void
resize_buf(struct buf *buf, size_t initial)
{
buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
buf->buf = mandoc_realloc(buf->buf, buf->sz);
}
static void
pset(const char *buf, int pos, struct mparse *curp)
{
int i;
/*
* Try to intuit which kind of manual parser should be used. If
* passed in by command-line (-man, -mdoc), then use that
* explicitly. If passed as -mandoc, then try to guess from the
* line: either skip dot-lines, use -mdoc when finding `.Dt', or
* default to -man, which is more lenient.
*
* Separate out pmdoc/pman from mdoc/man: the first persists
* through all parsers, while the latter is used per-parse.
*/
if ('.' == buf[0] || '\'' == buf[0]) {
for (i = 1; buf[i]; i++)
if (' ' != buf[i] && '\t' != buf[i])
break;
if ('\0' == buf[i])
return;
}
if (MPARSE_MDOC & curp->options) {
if (NULL == curp->pmdoc)
curp->pmdoc = mdoc_alloc(
curp->roff, curp, curp->defos,
MPARSE_QUICK & curp->options ? 1 : 0);
assert(curp->pmdoc);
curp->mdoc = curp->pmdoc;
return;
} else if (MPARSE_MAN & curp->options) {
if (NULL == curp->pman)
curp->pman = man_alloc(curp->roff, curp,
MPARSE_QUICK & curp->options ? 1 : 0);
assert(curp->pman);
curp->man = curp->pman;
return;
}
if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
if (NULL == curp->pmdoc)
curp->pmdoc = mdoc_alloc(
curp->roff, curp, curp->defos,
MPARSE_QUICK & curp->options ? 1 : 0);
assert(curp->pmdoc);
curp->mdoc = curp->pmdoc;
return;
}
if (NULL == curp->pman)
curp->pman = man_alloc(curp->roff, curp,
MPARSE_QUICK & curp->options ? 1 : 0);
assert(curp->pman);
curp->man = curp->pman;
}
/*
* Main parse routine for an opened file. This is called for each
* opened file and simply loops around the full input file, possibly
* nesting (i.e., with `so').
*/
static void
mparse_buf_r(struct mparse *curp, struct buf blk, int start)
{
const struct tbl_span *span;
struct buf ln;
enum rofferr rr;
int i, of, rc;
int pos; /* byte number in the ln buffer */
int lnn; /* line number in the real file */
unsigned char c;
memset(&ln, 0, sizeof(struct buf));
lnn = curp->line;
pos = 0;
for (i = 0; i < (int)blk.sz; ) {
if (0 == pos && '\0' == blk.buf[i])
break;
if (start) {
curp->line = lnn;
curp->reparse_count = 0;
}
while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
/*
* When finding an unescaped newline character,
* leave the character loop to process the line.
* Skip a preceding carriage return, if any.
*/
if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
'\n' == blk.buf[i + 1])
++i;
if ('\n' == blk.buf[i]) {
++i;
++lnn;
break;
}
/*
* Make sure we have space for at least
* one backslash and one other character
* and the trailing NUL byte.
*/
if (pos + 2 >= (int)ln.sz)
resize_buf(&ln, 256);
/*
* Warn about bogus characters. If you're using
* non-ASCII encoding, you're screwing your
* readers. Since I'd rather this not happen,
* I'll be helpful and replace these characters
* with "?", so we don't display gibberish.
* Note to manual writers: use special characters.
*/
c = (unsigned char) blk.buf[i];
if ( ! (isascii(c) &&
(isgraph(c) || isblank(c)))) {
mandoc_msg(MANDOCERR_BADCHAR, curp,
curp->line, pos, NULL);
i++;
ln.buf[pos++] = '?';
continue;
}
/* Trailing backslash = a plain char. */
if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
ln.buf[pos++] = blk.buf[i++];
continue;
}
/*
* Found escape and at least one other character.
* When it's a newline character, skip it.
* When there is a carriage return in between,
* skip that one as well.
*/
if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
'\n' == blk.buf[i + 2])
++i;
if ('\n' == blk.buf[i + 1]) {
i += 2;
++lnn;
continue;
}
if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
i += 2;
/* Comment, skip to end of line */
for (; i < (int)blk.sz; ++i) {
if ('\n' == blk.buf[i]) {
++i;
++lnn;
break;
}
}
/* Backout trailing whitespaces */
for (; pos > 0; --pos) {
if (ln.buf[pos - 1] != ' ')
break;
if (pos > 2 && ln.buf[pos - 2] == '\\')
break;
}
break;
}
/* Catch escaped bogus characters. */
c = (unsigned char) blk.buf[i+1];
if ( ! (isascii(c) &&
(isgraph(c) || isblank(c)))) {
mandoc_msg(MANDOCERR_BADCHAR, curp,
curp->line, pos, NULL);
i += 2;
ln.buf[pos++] = '?';
continue;
}
/* Some other escape sequence, copy & cont. */
ln.buf[pos++] = blk.buf[i++];
ln.buf[pos++] = blk.buf[i++];
}
if (pos >= (int)ln.sz)
resize_buf(&ln, 256);
ln.buf[pos] = '\0';
/*
* A significant amount of complexity is contained by
* the roff preprocessor. It's line-oriented but can be
* expressed on one line, so we need at times to
* readjust our starting point and re-run it. The roff
* preprocessor can also readjust the buffers with new
* data, so we pass them in wholesale.
*/
of = 0;
/*
* Maintain a lookaside buffer of all parsed lines. We
* only do this if mparse_keep() has been invoked (the
* buffer may be accessed with mparse_getkeep()).
*/
if (curp->secondary) {
curp->secondary->buf = mandoc_realloc(
curp->secondary->buf,
curp->secondary->sz + pos + 2);
memcpy(curp->secondary->buf +
curp->secondary->sz,
ln.buf, pos);
curp->secondary->sz += pos;
curp->secondary->buf
[curp->secondary->sz] = '\n';
curp->secondary->sz++;
curp->secondary->buf
[curp->secondary->sz] = '\0';
}
rerun:
rr = roff_parseln(curp->roff, curp->line,
&ln.buf, &ln.sz, of, &of);
switch (rr) {
case ROFF_REPARSE:
if (REPARSE_LIMIT >= ++curp->reparse_count)
mparse_buf_r(curp, ln, 0);
else
mandoc_msg(MANDOCERR_ROFFLOOP, curp,
curp->line, pos, NULL);
pos = 0;
continue;
case ROFF_APPEND:
pos = (int)strlen(ln.buf);
continue;
case ROFF_RERUN:
goto rerun;
case ROFF_IGN:
pos = 0;
continue;
case ROFF_ERR:
assert(MANDOCLEVEL_FATAL <= curp->file_status);
break;
case ROFF_SO:
if (0 == (MPARSE_SO & curp->options) &&
(i >= (int)blk.sz || '\0' == blk.buf[i])) {
curp->sodest = mandoc_strdup(ln.buf + of);
free(ln.buf);
return;
}
/*
* We remove `so' clauses from our lookaside
* buffer because we're going to descend into
* the file recursively.
*/
if (curp->secondary)
curp->secondary->sz -= pos + 1;
mparse_readfd(curp, -1, ln.buf + of);
if (MANDOCLEVEL_FATAL <= curp->file_status) {
mandoc_vmsg(MANDOCERR_SO_FAIL,
curp, curp->line, pos,
".so %s", ln.buf + of);
break;
}
pos = 0;
continue;
default:
break;
}
/*
* If we encounter errors in the recursive parse, make
* sure we don't continue parsing.
*/
if (MANDOCLEVEL_FATAL <= curp->file_status)
break;
/*
* If input parsers have not been allocated, do so now.
* We keep these instanced between parsers, but set them
* locally per parse routine since we can use different
* parsers with each one.
*/
if ( ! (curp->man || curp->mdoc))
pset(ln.buf + of, pos - of, curp);
/*
* Lastly, push down into the parsers themselves. One
* of these will have already been set in the pset()
* routine.
* If libroff returns ROFF_TBL, then add it to the
* currently open parse. Since we only get here if
* there does exist data (see tbl_data.c), we're
* guaranteed that something's been allocated.
* Do the same for ROFF_EQN.
*/
rc = -1;
if (ROFF_TBL == rr)
while (NULL != (span = roff_span(curp->roff))) {
rc = curp->man ?
man_addspan(curp->man, span) :
mdoc_addspan(curp->mdoc, span);
if (0 == rc)
break;
}
else if (ROFF_EQN == rr)
rc = curp->mdoc ?
mdoc_addeqn(curp->mdoc,
roff_eqn(curp->roff)) :
man_addeqn(curp->man,
roff_eqn(curp->roff));
else if (curp->man || curp->mdoc)
rc = curp->man ?
man_parseln(curp->man,
curp->line, ln.buf, of) :
mdoc_parseln(curp->mdoc,
curp->line, ln.buf, of);
if (0 == rc) {
assert(MANDOCLEVEL_FATAL <= curp->file_status);
break;
} else if (2 == rc)
break;
/* Temporary buffers typically are not full. */
if (0 == start && '\0' == blk.buf[i])
break;
/* Start the next input line. */
pos = 0;
}
free(ln.buf);
}
static int
read_whole_file(struct mparse *curp, const char *file, int fd,
struct buf *fb, int *with_mmap)
{
size_t off;
ssize_t ssz;
#ifdef HAVE_MMAP
struct stat st;
if (-1 == fstat(fd, &st)) {
curp->file_status = MANDOCLEVEL_SYSERR;
if (curp->mmsg)
(*curp->mmsg)(MANDOCERR_SYSSTAT, curp->file_status,
file, 0, 0, strerror(errno));
return(0);
}
/*
* If we're a regular file, try just reading in the whole entry
* via mmap(). This is faster than reading it into blocks, and
* since each file is only a few bytes to begin with, I'm not
* concerned that this is going to tank any machines.
*/
if (S_ISREG(st.st_mode)) {
if (st.st_size >= (1U << 31)) {
curp->file_status = MANDOCLEVEL_FATAL;
if (curp->mmsg)
(*curp->mmsg)(MANDOCERR_TOOLARGE,
curp->file_status, file, 0, 0, NULL);
return(0);
}
*with_mmap = 1;
fb->sz = (size_t)st.st_size;
fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
if (fb->buf != MAP_FAILED)
return(1);
}
#endif
/*
* If this isn't a regular file (like, say, stdin), then we must
* go the old way and just read things in bit by bit.
*/
*with_mmap = 0;
off = 0;
fb->sz = 0;
fb->buf = NULL;
for (;;) {
if (off == fb->sz) {
if (fb->sz == (1U << 31)) {
curp->file_status = MANDOCLEVEL_FATAL;
if (curp->mmsg)
(*curp->mmsg)(MANDOCERR_TOOLARGE,
curp->file_status,
file, 0, 0, NULL);
break;
}
resize_buf(fb, 65536);
}
ssz = read(fd, fb->buf + (int)off, fb->sz - off);
if (ssz == 0) {
fb->sz = off;
return(1);
}
if (ssz == -1) {
curp->file_status = MANDOCLEVEL_SYSERR;
if (curp->mmsg)
(*curp->mmsg)(MANDOCERR_SYSREAD,
curp->file_status, file, 0, 0,
strerror(errno));
break;
}
off += (size_t)ssz;
}
free(fb->buf);
fb->buf = NULL;
return(0);
}
static void
mparse_end(struct mparse *curp)
{
if (MANDOCLEVEL_FATAL <= curp->file_status)
return;
if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
assert(MANDOCLEVEL_FATAL <= curp->file_status);
return;
}
if (curp->man && ! man_endparse(curp->man)) {
assert(MANDOCLEVEL_FATAL <= curp->file_status);
return;
}
if ( ! (curp->mdoc || curp->man || curp->sodest)) {
mandoc_msg(MANDOCERR_NOTMANUAL, curp, 0, 0, NULL);
curp->file_status = MANDOCLEVEL_FATAL;
return;
}
roff_endparse(curp->roff);
}
static void
mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
{
const char *svfile;
static int recursion_depth;
if (64 < recursion_depth) {
mandoc_msg(MANDOCERR_ROFFLOOP, curp, curp->line, 0, NULL);
return;
}
/* Line number is per-file. */
svfile = curp->file;
curp->file = file;
curp->line = 1;
recursion_depth++;
mparse_buf_r(curp, blk, 1);
if (0 == --recursion_depth && MANDOCLEVEL_FATAL > curp->file_status)
mparse_end(curp);
curp->file = svfile;
}
enum mandoclevel
mparse_readmem(struct mparse *curp, const void *buf, size_t len,
const char *file)
{
struct buf blk;
blk.buf = UNCONST(buf);
blk.sz = len;
mparse_parse_buffer(curp, blk, file);
return(curp->file_status);
}
enum mandoclevel
mparse_readfd(struct mparse *curp, int fd, const char *file)
{
struct buf blk;
int with_mmap;
if (-1 == fd && -1 == (fd = open(file, O_RDONLY, 0))) {
curp->file_status = MANDOCLEVEL_SYSERR;
if (curp->mmsg)
(*curp->mmsg)(MANDOCERR_SYSOPEN,
curp->file_status,
file, 0, 0, strerror(errno));
goto out;
}
/*
* Run for each opened file; may be called more than once for
* each full parse sequence if the opened file is nested (i.e.,
* from `so'). Simply sucks in the whole file and moves into
* the parse phase for the file.
*/
if ( ! read_whole_file(curp, file, fd, &blk, &with_mmap))
goto out;
mparse_parse_buffer(curp, blk, file);
#ifdef HAVE_MMAP
if (with_mmap)
munmap(blk.buf, blk.sz);
else
#endif
free(blk.buf);
if (STDIN_FILENO != fd && -1 == close(fd))
perror(file);
out:
return(curp->file_status);
}
struct mparse *
mparse_alloc(int options, enum mandoclevel wlevel,
mandocmsg mmsg, char *defos)
{
struct mparse *curp;
assert(wlevel <= MANDOCLEVEL_FATAL);
curp = mandoc_calloc(1, sizeof(struct mparse));
curp->options = options;
curp->wlevel = wlevel;
curp->mmsg = mmsg;
curp->defos = defos;
curp->roff = roff_alloc(curp, options);
return(curp);
}
void
mparse_reset(struct mparse *curp)
{
roff_reset(curp->roff);
if (curp->mdoc)
mdoc_reset(curp->mdoc);
if (curp->man)
man_reset(curp->man);
if (curp->secondary)
curp->secondary->sz = 0;
curp->file_status = MANDOCLEVEL_OK;
curp->mdoc = NULL;
curp->man = NULL;
free(curp->sodest);
curp->sodest = NULL;
}
void
mparse_free(struct mparse *curp)
{
if (curp->pmdoc)
mdoc_free(curp->pmdoc);
if (curp->pman)
man_free(curp->pman);
if (curp->roff)
roff_free(curp->roff);
if (curp->secondary)
free(curp->secondary->buf);
free(curp->secondary);
free(curp->sodest);
free(curp);
}
void
mparse_result(struct mparse *curp,
struct mdoc **mdoc, struct man **man, char **sodest)
{
if (sodest && NULL != (*sodest = curp->sodest)) {
*mdoc = NULL;
*man = NULL;
return;
}
if (mdoc)
*mdoc = curp->mdoc;
if (man)
*man = curp->man;
}
void
mandoc_vmsg(enum mandocerr t, struct mparse *m,
int ln, int pos, const char *fmt, ...)
{
char buf[256];
va_list ap;
va_start(ap, fmt);
(void)vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
mandoc_msg(t, m, ln, pos, buf);
}
void
mandoc_msg(enum mandocerr er, struct mparse *m,
int ln, int col, const char *msg)
{
enum mandoclevel level;
level = MANDOCLEVEL_FATAL;
while (er < mandoclimits[level])
level--;
if (level < m->wlevel)
return;
if (m->mmsg)
(*m->mmsg)(er, level, m->file, ln, col, msg);
if (m->file_status < level)
m->file_status = level;
}
const char *
mparse_strerror(enum mandocerr er)
{
return(mandocerrs[er]);
}
const char *
mparse_strlevel(enum mandoclevel lvl)
{
return(mandoclevels[lvl]);
}
void
mparse_keep(struct mparse *p)
{
assert(NULL == p->secondary);
p->secondary = mandoc_calloc(1, sizeof(struct buf));
}
const char *
mparse_getkeep(const struct mparse *p)
{
assert(p->secondary);
return(p->secondary->sz ? p->secondary->buf : NULL);
}
|