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
|
/* $OpenBSD: mdoc.c,v 1.134 2015/04/18 17:28:08 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.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 AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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/types.h>
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "mandoc_aux.h"
#include "mandoc.h"
#include "roff.h"
#include "mdoc.h"
#include "libmandoc.h"
#include "libmdoc.h"
const char *const __mdoc_macronames[MDOC_MAX + 1] = {
"Ap", "Dd", "Dt", "Os",
"Sh", "Ss", "Pp", "D1",
"Dl", "Bd", "Ed", "Bl",
"El", "It", "Ad", "An",
"Ar", "Cd", "Cm", "Dv",
"Er", "Ev", "Ex", "Fa",
"Fd", "Fl", "Fn", "Ft",
"Ic", "In", "Li", "Nd",
"Nm", "Op", "Ot", "Pa",
"Rv", "St", "Va", "Vt",
"Xr", "%A", "%B", "%D",
"%I", "%J", "%N", "%O",
"%P", "%R", "%T", "%V",
"Ac", "Ao", "Aq", "At",
"Bc", "Bf", "Bo", "Bq",
"Bsx", "Bx", "Db", "Dc",
"Do", "Dq", "Ec", "Ef",
"Em", "Eo", "Fx", "Ms",
"No", "Ns", "Nx", "Ox",
"Pc", "Pf", "Po", "Pq",
"Qc", "Ql", "Qo", "Qq",
"Re", "Rs", "Sc", "So",
"Sq", "Sm", "Sx", "Sy",
"Tn", "Ux", "Xc", "Xo",
"Fo", "Fc", "Oo", "Oc",
"Bk", "Ek", "Bt", "Hf",
"Fr", "Ud", "Lb", "Lp",
"Lk", "Mt", "Brq", "Bro",
"Brc", "%C", "Es", "En",
"Dx", "%Q", "br", "sp",
"%U", "Ta", "ll", "text",
};
const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
"split", "nosplit", "ragged",
"unfilled", "literal", "file",
"offset", "bullet", "dash",
"hyphen", "item", "enum",
"tag", "diag", "hang",
"ohang", "inset", "column",
"width", "compact", "std",
"filled", "words", "emphasis",
"symbolic", "nested", "centered"
};
const char * const *mdoc_macronames = __mdoc_macronames;
const char * const *mdoc_argnames = __mdoc_argnames;
static void mdoc_node_free(struct roff_node *);
static void mdoc_node_unlink(struct roff_man *,
struct roff_node *);
static struct roff_node *node_alloc(struct roff_man *, int, int,
int, enum roff_type);
static void node_append(struct roff_man *, struct roff_node *);
static int mdoc_ptext(struct roff_man *, int, char *, int);
static int mdoc_pmacro(struct roff_man *, int, char *, int);
const struct roff_node *
mdoc_node(const struct roff_man *mdoc)
{
return(mdoc->first);
}
const struct roff_meta *
mdoc_meta(const struct roff_man *mdoc)
{
return(&mdoc->meta);
}
void
mdoc_endparse(struct roff_man *mdoc)
{
mdoc_macroend(mdoc);
}
void
mdoc_addeqn(struct roff_man *mdoc, const struct eqn *ep)
{
struct roff_node *n;
n = node_alloc(mdoc, ep->ln, ep->pos, MDOC_MAX, ROFFT_EQN);
n->eqn = ep;
if (ep->ln > mdoc->last->line)
n->flags |= MDOC_LINE;
node_append(mdoc, n);
mdoc->next = ROFF_NEXT_SIBLING;
}
void
mdoc_addspan(struct roff_man *mdoc, const struct tbl_span *sp)
{
struct roff_node *n;
n = node_alloc(mdoc, sp->line, 0, MDOC_MAX, ROFFT_TBL);
n->span = sp;
node_append(mdoc, n);
mdoc->next = ROFF_NEXT_SIBLING;
}
/*
* Main parse routine. Parses a single line -- really just hands off to
* the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
*/
int
mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)
{
if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)
mdoc->flags |= MDOC_NEWLINE;
/*
* Let the roff nS register switch SYNOPSIS mode early,
* such that the parser knows at all times
* whether this mode is on or off.
* Note that this mode is also switched by the Sh macro.
*/
if (roff_getreg(mdoc->roff, "nS"))
mdoc->flags |= MDOC_SYNOPSIS;
else
mdoc->flags &= ~MDOC_SYNOPSIS;
return(roff_getcontrol(mdoc->roff, buf, &offs) ?
mdoc_pmacro(mdoc, ln, buf, offs) :
mdoc_ptext(mdoc, ln, buf, offs));
}
void
mdoc_macro(MACRO_PROT_ARGS)
{
assert(tok < MDOC_MAX);
if (mdoc->flags & MDOC_PBODY) {
if (tok == MDOC_Dt) {
mandoc_vmsg(MANDOCERR_DT_LATE,
mdoc->parse, line, ppos,
"Dt %s", buf + *pos);
return;
}
} else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) {
if (mdoc->meta.title == NULL) {
mandoc_vmsg(MANDOCERR_DT_NOTITLE,
mdoc->parse, line, ppos, "%s %s",
mdoc_macronames[tok], buf + *pos);
mdoc->meta.title = mandoc_strdup("UNTITLED");
}
if (NULL == mdoc->meta.vol)
mdoc->meta.vol = mandoc_strdup("LOCAL");
mdoc->flags |= MDOC_PBODY;
}
(*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
}
static void
node_append(struct roff_man *mdoc, struct roff_node *p)
{
assert(mdoc->last);
assert(mdoc->first);
assert(p->type != ROFFT_ROOT);
switch (mdoc->next) {
case ROFF_NEXT_SIBLING:
mdoc->last->next = p;
p->prev = mdoc->last;
p->parent = mdoc->last->parent;
break;
case ROFF_NEXT_CHILD:
mdoc->last->child = p;
p->parent = mdoc->last;
break;
default:
abort();
/* NOTREACHED */
}
p->parent->nchild++;
/*
* Copy over the normalised-data pointer of our parent. Not
* everybody has one, but copying a null pointer is fine.
*/
switch (p->type) {
case ROFFT_BODY:
if (ENDBODY_NOT != p->end)
break;
/* FALLTHROUGH */
case ROFFT_TAIL:
/* FALLTHROUGH */
case ROFFT_HEAD:
p->norm = p->parent->norm;
break;
default:
break;
}
mdoc_valid_pre(mdoc, p);
switch (p->type) {
case ROFFT_HEAD:
assert(p->parent->type == ROFFT_BLOCK);
p->parent->head = p;
break;
case ROFFT_TAIL:
assert(p->parent->type == ROFFT_BLOCK);
p->parent->tail = p;
break;
case ROFFT_BODY:
if (p->end)
break;
assert(p->parent->type == ROFFT_BLOCK);
p->parent->body = p;
break;
default:
break;
}
mdoc->last = p;
switch (p->type) {
case ROFFT_TBL:
/* FALLTHROUGH */
case ROFFT_TEXT:
mdoc_valid_post(mdoc);
break;
default:
break;
}
}
static struct roff_node *
node_alloc(struct roff_man *mdoc, int line, int pos,
int tok, enum roff_type type)
{
struct roff_node *p;
p = mandoc_calloc(1, sizeof(*p));
p->sec = mdoc->lastsec;
p->line = line;
p->pos = pos;
p->tok = tok;
p->type = type;
/* Flag analysis. */
if (MDOC_SYNOPSIS & mdoc->flags)
p->flags |= MDOC_SYNPRETTY;
else
p->flags &= ~MDOC_SYNPRETTY;
if (MDOC_NEWLINE & mdoc->flags)
p->flags |= MDOC_LINE;
mdoc->flags &= ~MDOC_NEWLINE;
return(p);
}
void
mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok)
{
struct roff_node *p;
p = node_alloc(mdoc, line, pos, tok, ROFFT_TAIL);
node_append(mdoc, p);
mdoc->next = ROFF_NEXT_CHILD;
}
struct roff_node *
mdoc_head_alloc(struct roff_man *mdoc, int line, int pos, int tok)
{
struct roff_node *p;
assert(mdoc->first);
assert(mdoc->last);
p = node_alloc(mdoc, line, pos, tok, ROFFT_HEAD);
node_append(mdoc, p);
mdoc->next = ROFF_NEXT_CHILD;
return(p);
}
struct roff_node *
mdoc_body_alloc(struct roff_man *mdoc, int line, int pos, int tok)
{
struct roff_node *p;
p = node_alloc(mdoc, line, pos, tok, ROFFT_BODY);
node_append(mdoc, p);
mdoc->next = ROFF_NEXT_CHILD;
return(p);
}
struct roff_node *
mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok,
struct roff_node *body, enum mdoc_endbody end)
{
struct roff_node *p;
body->flags |= MDOC_ENDED;
body->parent->flags |= MDOC_ENDED;
p = node_alloc(mdoc, line, pos, tok, ROFFT_BODY);
p->body = body;
p->norm = body->norm;
p->end = end;
node_append(mdoc, p);
mdoc->next = ROFF_NEXT_SIBLING;
return(p);
}
struct roff_node *
mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
int tok, struct mdoc_arg *args)
{
struct roff_node *p;
p = node_alloc(mdoc, line, pos, tok, ROFFT_BLOCK);
p->args = args;
if (p->args)
(args->refcnt)++;
switch (tok) {
case MDOC_Bd:
/* FALLTHROUGH */
case MDOC_Bf:
/* FALLTHROUGH */
case MDOC_Bl:
/* FALLTHROUGH */
case MDOC_En:
/* FALLTHROUGH */
case MDOC_Rs:
p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
break;
default:
break;
}
node_append(mdoc, p);
mdoc->next = ROFF_NEXT_CHILD;
return(p);
}
void
mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
int tok, struct mdoc_arg *args)
{
struct roff_node *p;
p = node_alloc(mdoc, line, pos, tok, ROFFT_ELEM);
p->args = args;
if (p->args)
(args->refcnt)++;
switch (tok) {
case MDOC_An:
p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
break;
default:
break;
}
node_append(mdoc, p);
mdoc->next = ROFF_NEXT_CHILD;
}
void
mdoc_word_alloc(struct roff_man *mdoc, int line, int pos, const char *p)
{
struct roff_node *n;
n = node_alloc(mdoc, line, pos, MDOC_MAX, ROFFT_TEXT);
n->string = roff_strdup(mdoc->roff, p);
node_append(mdoc, n);
mdoc->next = ROFF_NEXT_SIBLING;
}
void
mdoc_word_append(struct roff_man *mdoc, const char *p)
{
struct roff_node *n;
char *addstr, *newstr;
n = mdoc->last;
addstr = roff_strdup(mdoc->roff, p);
mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
free(addstr);
free(n->string);
n->string = newstr;
mdoc->next = ROFF_NEXT_SIBLING;
}
static void
mdoc_node_free(struct roff_node *p)
{
if (p->type == ROFFT_BLOCK || p->type == ROFFT_ELEM)
free(p->norm);
if (p->string)
free(p->string);
if (p->args)
mdoc_argv_free(p->args);
free(p);
}
static void
mdoc_node_unlink(struct roff_man *mdoc, struct roff_node *n)
{
/* Adjust siblings. */
if (n->prev)
n->prev->next = n->next;
if (n->next)
n->next->prev = n->prev;
/* Adjust parent. */
if (n->parent) {
n->parent->nchild--;
if (n->parent->child == n)
n->parent->child = n->prev ? n->prev : n->next;
if (n->parent->last == n)
n->parent->last = n->prev ? n->prev : NULL;
}
/* Adjust parse point, if applicable. */
if (mdoc && mdoc->last == n) {
if (n->prev) {
mdoc->last = n->prev;
mdoc->next = ROFF_NEXT_SIBLING;
} else {
mdoc->last = n->parent;
mdoc->next = ROFF_NEXT_CHILD;
}
}
if (mdoc && mdoc->first == n)
mdoc->first = NULL;
}
void
mdoc_node_delete(struct roff_man *mdoc, struct roff_node *p)
{
while (p->child) {
assert(p->nchild);
mdoc_node_delete(mdoc, p->child);
}
assert(0 == p->nchild);
mdoc_node_unlink(mdoc, p);
mdoc_node_free(p);
}
void
mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p)
{
mdoc_node_unlink(mdoc, p);
node_append(mdoc, p);
}
/*
* Parse free-form text, that is, a line that does not begin with the
* control character.
*/
static int
mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
{
struct roff_node *n;
char *c, *ws, *end;
assert(mdoc->last);
n = mdoc->last;
/*
* Divert directly to list processing if we're encountering a
* columnar ROFFT_BLOCK with or without a prior ROFFT_BLOCK entry
* (a ROFFT_BODY means it's already open, in which case we should
* process within its context in the normal way).
*/
if (n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) {
/* `Bl' is open without any children. */
mdoc->flags |= MDOC_FREECOL;
mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
return(1);
}
if (n->tok == MDOC_It && n->type == ROFFT_BLOCK &&
NULL != n->parent &&
MDOC_Bl == n->parent->tok &&
LIST_column == n->parent->norm->Bl.type) {
/* `Bl' has block-level `It' children. */
mdoc->flags |= MDOC_FREECOL;
mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
return(1);
}
/*
* Search for the beginning of unescaped trailing whitespace (ws)
* and for the first character not to be output (end).
*/
/* FIXME: replace with strcspn(). */
ws = NULL;
for (c = end = buf + offs; *c; c++) {
switch (*c) {
case ' ':
if (NULL == ws)
ws = c;
continue;
case '\t':
/*
* Always warn about trailing tabs,
* even outside literal context,
* where they should be put on the next line.
*/
if (NULL == ws)
ws = c;
/*
* Strip trailing tabs in literal context only;
* outside, they affect the next line.
*/
if (MDOC_LITERAL & mdoc->flags)
continue;
break;
case '\\':
/* Skip the escaped character, too, if any. */
if (c[1])
c++;
/* FALLTHROUGH */
default:
ws = NULL;
break;
}
end = c + 1;
}
*end = '\0';
if (ws)
mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
line, (int)(ws-buf), NULL);
if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
line, (int)(c - buf), NULL);
/*
* Insert a `sp' in the case of a blank line. Technically,
* blank lines aren't allowed, but enough manuals assume this
* behaviour that we want to work around it.
*/
mdoc_elem_alloc(mdoc, line, offs, MDOC_sp, NULL);
mdoc->next = ROFF_NEXT_SIBLING;
mdoc_valid_post(mdoc);
return(1);
}
mdoc_word_alloc(mdoc, line, offs, buf+offs);
if (mdoc->flags & MDOC_LITERAL)
return(1);
/*
* End-of-sentence check. If the last character is an unescaped
* EOS character, then flag the node as being the end of a
* sentence. The front-end will know how to interpret this.
*/
assert(buf < end);
if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
mdoc->last->flags |= MDOC_EOS;
return(1);
}
/*
* Parse a macro line, that is, a line beginning with the control
* character.
*/
static int
mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)
{
struct roff_node *n;
const char *cp;
int tok;
int i, sv;
char mac[5];
sv = offs;
/*
* Copy the first word into a nil-terminated buffer.
* Stop when a space, tab, escape, or eoln is encountered.
*/
i = 0;
while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
mac[i++] = buf[offs++];
mac[i] = '\0';
tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : MDOC_MAX;
if (tok == MDOC_MAX) {
mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
ln, sv, buf + sv - 1);
return(1);
}
/* Skip a leading escape sequence or tab. */
switch (buf[offs]) {
case '\\':
cp = buf + offs + 1;
mandoc_escape(&cp, NULL, NULL);
offs = cp - buf;
break;
case '\t':
offs++;
break;
default:
break;
}
/* Jump to the next non-whitespace word. */
while (buf[offs] && ' ' == buf[offs])
offs++;
/*
* Trailing whitespace. Note that tabs are allowed to be passed
* into the parser as "text", so we only warn about spaces here.
*/
if ('\0' == buf[offs] && ' ' == buf[offs - 1])
mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
ln, offs - 1, NULL);
/*
* If an initial macro or a list invocation, divert directly
* into macro processing.
*/
if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) {
mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
return(1);
}
n = mdoc->last;
assert(mdoc->last);
/*
* If the first macro of a `Bl -column', open an `It' block
* context around the parsed macro.
*/
if (n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) {
mdoc->flags |= MDOC_FREECOL;
mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
return(1);
}
/*
* If we're following a block-level `It' within a `Bl -column'
* context (perhaps opened in the above block or in ptext()),
* then open an `It' block context around the parsed macro.
*/
if (n->tok == MDOC_It && n->type == ROFFT_BLOCK &&
NULL != n->parent &&
MDOC_Bl == n->parent->tok &&
LIST_column == n->parent->norm->Bl.type) {
mdoc->flags |= MDOC_FREECOL;
mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
return(1);
}
/* Normal processing of a macro. */
mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
/* In quick mode (for mandocdb), abort after the NAME section. */
if (mdoc->quick && MDOC_Sh == tok &&
SEC_NAME != mdoc->last->sec)
return(2);
return(1);
}
enum mdelim
mdoc_isdelim(const char *p)
{
if ('\0' == p[0])
return(DELIM_NONE);
if ('\0' == p[1])
switch (p[0]) {
case '(':
/* FALLTHROUGH */
case '[':
return(DELIM_OPEN);
case '|':
return(DELIM_MIDDLE);
case '.':
/* FALLTHROUGH */
case ',':
/* FALLTHROUGH */
case ';':
/* FALLTHROUGH */
case ':':
/* FALLTHROUGH */
case '?':
/* FALLTHROUGH */
case '!':
/* FALLTHROUGH */
case ')':
/* FALLTHROUGH */
case ']':
return(DELIM_CLOSE);
default:
return(DELIM_NONE);
}
if ('\\' != p[0])
return(DELIM_NONE);
if (0 == strcmp(p + 1, "."))
return(DELIM_CLOSE);
if (0 == strcmp(p + 1, "fR|\\fP"))
return(DELIM_MIDDLE);
return(DELIM_NONE);
}
void
mdoc_deroff(char **dest, const struct roff_node *n)
{
char *cp;
size_t sz;
if (n->type != ROFFT_TEXT) {
for (n = n->child; n; n = n->next)
mdoc_deroff(dest, n);
return;
}
/* Skip leading whitespace. */
for (cp = n->string; '\0' != *cp; cp++)
if (0 == isspace((unsigned char)*cp))
break;
/* Skip trailing whitespace. */
for (sz = strlen(cp); sz; sz--)
if (0 == isspace((unsigned char)cp[sz-1]))
break;
/* Skip empty strings. */
if (0 == sz)
return;
if (NULL == *dest) {
*dest = mandoc_strndup(cp, sz);
return;
}
mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
free(*dest);
*dest = cp;
}
|