1 /* Id: mdoc_argv.c,v 1.119 2018/12/21 17:15:19 schwarze Exp */
2 /*
3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org>
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 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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 "config.h"
19
20 #include <sys/types.h>
21
22 #include <assert.h>
23 #include <stdlib.h>
24 #include <stdio.h>
25 #include <string.h>
26
27 #include "mandoc_aux.h"
28 #include "mandoc.h"
29 #include "roff.h"
30 #include "mdoc.h"
31 #include "libmandoc.h"
32 #include "roff_int.h"
33 #include "libmdoc.h"
34
35 #define MULTI_STEP 5 /* pre-allocate argument values */
36 #define DELIMSZ 6 /* max possible size of a delimiter */
37
38 enum argsflag {
39 ARGSFL_NONE = 0,
40 ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
41 ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
42 };
43
44 enum argvflag {
45 ARGV_NONE, /* no args to flag (e.g., -split) */
46 ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
47 ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
48 };
49
50 struct mdocarg {
51 enum argsflag flags;
52 const enum mdocargt *argvs;
53 };
54
55 static void argn_free(struct mdoc_arg *, int);
56 static enum margserr args(struct roff_man *, int, int *,
57 char *, enum argsflag, char **);
58 static int args_checkpunct(const char *, int);
59 static void argv_multi(struct roff_man *, int,
60 struct mdoc_argv *, int *, char *);
61 static void argv_single(struct roff_man *, int,
62 struct mdoc_argv *, int *, char *);
63
64 static const enum argvflag argvflags[MDOC_ARG_MAX] = {
65 ARGV_NONE, /* MDOC_Split */
66 ARGV_NONE, /* MDOC_Nosplit */
67 ARGV_NONE, /* MDOC_Ragged */
68 ARGV_NONE, /* MDOC_Unfilled */
69 ARGV_NONE, /* MDOC_Literal */
70 ARGV_SINGLE, /* MDOC_File */
71 ARGV_SINGLE, /* MDOC_Offset */
72 ARGV_NONE, /* MDOC_Bullet */
73 ARGV_NONE, /* MDOC_Dash */
74 ARGV_NONE, /* MDOC_Hyphen */
75 ARGV_NONE, /* MDOC_Item */
76 ARGV_NONE, /* MDOC_Enum */
77 ARGV_NONE, /* MDOC_Tag */
78 ARGV_NONE, /* MDOC_Diag */
79 ARGV_NONE, /* MDOC_Hang */
80 ARGV_NONE, /* MDOC_Ohang */
81 ARGV_NONE, /* MDOC_Inset */
82 ARGV_MULTI, /* MDOC_Column */
83 ARGV_SINGLE, /* MDOC_Width */
84 ARGV_NONE, /* MDOC_Compact */
85 ARGV_NONE, /* MDOC_Std */
86 ARGV_NONE, /* MDOC_Filled */
87 ARGV_NONE, /* MDOC_Words */
88 ARGV_NONE, /* MDOC_Emphasis */
89 ARGV_NONE, /* MDOC_Symbolic */
90 ARGV_NONE /* MDOC_Symbolic */
91 };
92
93 static const enum mdocargt args_Ex[] = {
94 MDOC_Std,
95 MDOC_ARG_MAX
96 };
97
98 static const enum mdocargt args_An[] = {
99 MDOC_Split,
100 MDOC_Nosplit,
101 MDOC_ARG_MAX
102 };
103
104 static const enum mdocargt args_Bd[] = {
105 MDOC_Ragged,
106 MDOC_Unfilled,
107 MDOC_Filled,
108 MDOC_Literal,
109 MDOC_File,
110 MDOC_Offset,
111 MDOC_Compact,
112 MDOC_Centred,
113 MDOC_ARG_MAX
114 };
115
116 static const enum mdocargt args_Bf[] = {
117 MDOC_Emphasis,
118 MDOC_Literal,
119 MDOC_Symbolic,
120 MDOC_ARG_MAX
121 };
122
123 static const enum mdocargt args_Bk[] = {
124 MDOC_Words,
125 MDOC_ARG_MAX
126 };
127
128 static const enum mdocargt args_Bl[] = {
129 MDOC_Bullet,
130 MDOC_Dash,
131 MDOC_Hyphen,
132 MDOC_Item,
133 MDOC_Enum,
134 MDOC_Tag,
135 MDOC_Diag,
136 MDOC_Hang,
137 MDOC_Ohang,
138 MDOC_Inset,
139 MDOC_Column,
140 MDOC_Width,
141 MDOC_Offset,
142 MDOC_Compact,
143 MDOC_Nested,
144 MDOC_ARG_MAX
145 };
146
147 static const struct mdocarg mdocargs[MDOC_MAX - MDOC_Dd] = {
148 { ARGSFL_NONE, NULL }, /* Dd */
149 { ARGSFL_NONE, NULL }, /* Dt */
150 { ARGSFL_NONE, NULL }, /* Os */
151 { ARGSFL_NONE, NULL }, /* Sh */
152 { ARGSFL_NONE, NULL }, /* Ss */
153 { ARGSFL_NONE, NULL }, /* Pp */
154 { ARGSFL_DELIM, NULL }, /* D1 */
155 { ARGSFL_DELIM, NULL }, /* Dl */
156 { ARGSFL_NONE, args_Bd }, /* Bd */
157 { ARGSFL_NONE, NULL }, /* Ed */
158 { ARGSFL_NONE, args_Bl }, /* Bl */
159 { ARGSFL_NONE, NULL }, /* El */
160 { ARGSFL_NONE, NULL }, /* It */
161 { ARGSFL_DELIM, NULL }, /* Ad */
162 { ARGSFL_DELIM, args_An }, /* An */
163 { ARGSFL_DELIM, NULL }, /* Ap */
164 { ARGSFL_DELIM, NULL }, /* Ar */
165 { ARGSFL_DELIM, NULL }, /* Cd */
166 { ARGSFL_DELIM, NULL }, /* Cm */
167 { ARGSFL_DELIM, NULL }, /* Dv */
168 { ARGSFL_DELIM, NULL }, /* Er */
169 { ARGSFL_DELIM, NULL }, /* Ev */
170 { ARGSFL_NONE, args_Ex }, /* Ex */
171 { ARGSFL_DELIM, NULL }, /* Fa */
172 { ARGSFL_NONE, NULL }, /* Fd */
173 { ARGSFL_DELIM, NULL }, /* Fl */
174 { ARGSFL_DELIM, NULL }, /* Fn */
175 { ARGSFL_DELIM, NULL }, /* Ft */
176 { ARGSFL_DELIM, NULL }, /* Ic */
177 { ARGSFL_DELIM, NULL }, /* In */
178 { ARGSFL_DELIM, NULL }, /* Li */
179 { ARGSFL_NONE, NULL }, /* Nd */
180 { ARGSFL_DELIM, NULL }, /* Nm */
181 { ARGSFL_DELIM, NULL }, /* Op */
182 { ARGSFL_DELIM, NULL }, /* Ot */
183 { ARGSFL_DELIM, NULL }, /* Pa */
184 { ARGSFL_NONE, args_Ex }, /* Rv */
185 { ARGSFL_DELIM, NULL }, /* St */
186 { ARGSFL_DELIM, NULL }, /* Va */
187 { ARGSFL_DELIM, NULL }, /* Vt */
188 { ARGSFL_DELIM, NULL }, /* Xr */
189 { ARGSFL_NONE, NULL }, /* %A */
190 { ARGSFL_NONE, NULL }, /* %B */
191 { ARGSFL_NONE, NULL }, /* %D */
192 { ARGSFL_NONE, NULL }, /* %I */
193 { ARGSFL_NONE, NULL }, /* %J */
194 { ARGSFL_NONE, NULL }, /* %N */
195 { ARGSFL_NONE, NULL }, /* %O */
196 { ARGSFL_NONE, NULL }, /* %P */
197 { ARGSFL_NONE, NULL }, /* %R */
198 { ARGSFL_NONE, NULL }, /* %T */
199 { ARGSFL_NONE, NULL }, /* %V */
200 { ARGSFL_DELIM, NULL }, /* Ac */
201 { ARGSFL_NONE, NULL }, /* Ao */
202 { ARGSFL_DELIM, NULL }, /* Aq */
203 { ARGSFL_DELIM, NULL }, /* At */
204 { ARGSFL_DELIM, NULL }, /* Bc */
205 { ARGSFL_NONE, args_Bf }, /* Bf */
206 { ARGSFL_NONE, NULL }, /* Bo */
207 { ARGSFL_DELIM, NULL }, /* Bq */
208 { ARGSFL_DELIM, NULL }, /* Bsx */
209 { ARGSFL_DELIM, NULL }, /* Bx */
210 { ARGSFL_NONE, NULL }, /* Db */
211 { ARGSFL_DELIM, NULL }, /* Dc */
212 { ARGSFL_NONE, NULL }, /* Do */
213 { ARGSFL_DELIM, NULL }, /* Dq */
214 { ARGSFL_DELIM, NULL }, /* Ec */
215 { ARGSFL_NONE, NULL }, /* Ef */
216 { ARGSFL_DELIM, NULL }, /* Em */
217 { ARGSFL_NONE, NULL }, /* Eo */
218 { ARGSFL_DELIM, NULL }, /* Fx */
219 { ARGSFL_DELIM, NULL }, /* Ms */
220 { ARGSFL_DELIM, NULL }, /* No */
221 { ARGSFL_DELIM, NULL }, /* Ns */
222 { ARGSFL_DELIM, NULL }, /* Nx */
223 { ARGSFL_DELIM, NULL }, /* Ox */
224 { ARGSFL_DELIM, NULL }, /* Pc */
225 { ARGSFL_DELIM, NULL }, /* Pf */
226 { ARGSFL_NONE, NULL }, /* Po */
227 { ARGSFL_DELIM, NULL }, /* Pq */
228 { ARGSFL_DELIM, NULL }, /* Qc */
229 { ARGSFL_DELIM, NULL }, /* Ql */
230 { ARGSFL_NONE, NULL }, /* Qo */
231 { ARGSFL_DELIM, NULL }, /* Qq */
232 { ARGSFL_NONE, NULL }, /* Re */
233 { ARGSFL_NONE, NULL }, /* Rs */
234 { ARGSFL_DELIM, NULL }, /* Sc */
235 { ARGSFL_NONE, NULL }, /* So */
236 { ARGSFL_DELIM, NULL }, /* Sq */
237 { ARGSFL_NONE, NULL }, /* Sm */
238 { ARGSFL_DELIM, NULL }, /* Sx */
239 { ARGSFL_DELIM, NULL }, /* Sy */
240 { ARGSFL_DELIM, NULL }, /* Tn */
241 { ARGSFL_DELIM, NULL }, /* Ux */
242 { ARGSFL_DELIM, NULL }, /* Xc */
243 { ARGSFL_NONE, NULL }, /* Xo */
244 { ARGSFL_NONE, NULL }, /* Fo */
245 { ARGSFL_DELIM, NULL }, /* Fc */
246 { ARGSFL_NONE, NULL }, /* Oo */
247 { ARGSFL_DELIM, NULL }, /* Oc */
248 { ARGSFL_NONE, args_Bk }, /* Bk */
249 { ARGSFL_NONE, NULL }, /* Ek */
250 { ARGSFL_NONE, NULL }, /* Bt */
251 { ARGSFL_NONE, NULL }, /* Hf */
252 { ARGSFL_DELIM, NULL }, /* Fr */
253 { ARGSFL_NONE, NULL }, /* Ud */
254 { ARGSFL_DELIM, NULL }, /* Lb */
255 { ARGSFL_NONE, NULL }, /* Lp */
256 { ARGSFL_DELIM, NULL }, /* Lk */
257 { ARGSFL_DELIM, NULL }, /* Mt */
258 { ARGSFL_DELIM, NULL }, /* Brq */
259 { ARGSFL_NONE, NULL }, /* Bro */
260 { ARGSFL_DELIM, NULL }, /* Brc */
261 { ARGSFL_NONE, NULL }, /* %C */
262 { ARGSFL_NONE, NULL }, /* Es */
263 { ARGSFL_DELIM, NULL }, /* En */
264 { ARGSFL_DELIM, NULL }, /* Dx */
265 { ARGSFL_NONE, NULL }, /* %Q */
266 { ARGSFL_NONE, NULL }, /* %U */
267 { ARGSFL_NONE, NULL }, /* Ta */
268 };
269
270
271 /*
272 * Parse flags and their arguments from the input line.
273 * These come in the form -flag [argument ...].
274 * Some flags take no argument, some one, some multiple.
275 */
276 void
mdoc_argv(struct roff_man * mdoc,int line,enum roff_tok tok,struct mdoc_arg ** reta,int * pos,char * buf)277 mdoc_argv(struct roff_man *mdoc, int line, enum roff_tok tok,
278 struct mdoc_arg **reta, int *pos, char *buf)
279 {
280 struct mdoc_argv tmpv;
281 struct mdoc_argv **retv;
282 const enum mdocargt *argtable;
283 char *argname;
284 int ipos, retc;
285 char savechar;
286
287 *reta = NULL;
288
289 /* Which flags does this macro support? */
290
291 assert(tok >= MDOC_Dd && tok < MDOC_MAX);
292 argtable = mdocargs[tok - MDOC_Dd].argvs;
293 if (argtable == NULL)
294 return;
295
296 /* Loop over the flags on the input line. */
297
298 ipos = *pos;
299 while (buf[ipos] == '-') {
300
301 /* Seek to the first unescaped space. */
302
303 for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++)
304 if (buf[ipos] == ' ' && buf[ipos - 1] != '\\')
305 break;
306
307 /*
308 * We want to nil-terminate the word to look it up.
309 * But we may not have a flag, in which case we need
310 * to restore the line as-is. So keep around the
311 * stray byte, which we'll reset upon exiting.
312 */
313
314 if ((savechar = buf[ipos]) != '\0')
315 buf[ipos++] = '\0';
316
317 /*
318 * Now look up the word as a flag. Use temporary
319 * storage that we'll copy into the node's flags.
320 */
321
322 while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX)
323 if ( ! strcmp(argname, mdoc_argnames[tmpv.arg]))
324 break;
325
326 /* If it isn't a flag, restore the saved byte. */
327
328 if (tmpv.arg == MDOC_ARG_MAX) {
329 if (savechar != '\0')
330 buf[ipos - 1] = savechar;
331 break;
332 }
333
334 /* Read to the next word (the first argument). */
335
336 while (buf[ipos] == ' ')
337 ipos++;
338
339 /* Parse the arguments of the flag. */
340
341 tmpv.line = line;
342 tmpv.pos = *pos;
343 tmpv.sz = 0;
344 tmpv.value = NULL;
345
346 switch (argvflags[tmpv.arg]) {
347 case ARGV_SINGLE:
348 argv_single(mdoc, line, &tmpv, &ipos, buf);
349 break;
350 case ARGV_MULTI:
351 argv_multi(mdoc, line, &tmpv, &ipos, buf);
352 break;
353 case ARGV_NONE:
354 break;
355 }
356
357 /* Append to the return values. */
358
359 if (*reta == NULL)
360 *reta = mandoc_calloc(1, sizeof(**reta));
361
362 retc = ++(*reta)->argc;
363 retv = &(*reta)->argv;
364 *retv = mandoc_reallocarray(*retv, retc, sizeof(**retv));
365 memcpy(*retv + retc - 1, &tmpv, sizeof(**retv));
366
367 /* Prepare for parsing the next flag. */
368
369 *pos = ipos;
370 argtable = mdocargs[tok - MDOC_Dd].argvs;
371 }
372 }
373
374 void
mdoc_argv_free(struct mdoc_arg * p)375 mdoc_argv_free(struct mdoc_arg *p)
376 {
377 int i;
378
379 if (NULL == p)
380 return;
381
382 if (p->refcnt) {
383 --(p->refcnt);
384 if (p->refcnt)
385 return;
386 }
387 assert(p->argc);
388
389 for (i = (int)p->argc - 1; i >= 0; i--)
390 argn_free(p, i);
391
392 free(p->argv);
393 free(p);
394 }
395
396 static void
argn_free(struct mdoc_arg * p,int iarg)397 argn_free(struct mdoc_arg *p, int iarg)
398 {
399 struct mdoc_argv *arg;
400 int j;
401
402 arg = &p->argv[iarg];
403
404 if (arg->sz && arg->value) {
405 for (j = (int)arg->sz - 1; j >= 0; j--)
406 free(arg->value[j]);
407 free(arg->value);
408 }
409
410 for (--p->argc; iarg < (int)p->argc; iarg++)
411 p->argv[iarg] = p->argv[iarg+1];
412 }
413
414 enum margserr
mdoc_args(struct roff_man * mdoc,int line,int * pos,char * buf,enum roff_tok tok,char ** v)415 mdoc_args(struct roff_man *mdoc, int line, int *pos,
416 char *buf, enum roff_tok tok, char **v)
417 {
418 struct roff_node *n;
419 enum argsflag fl;
420
421 fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok - MDOC_Dd].flags;
422
423 /*
424 * We know that we're in an `It', so it's reasonable to expect
425 * us to be sitting in a `Bl'. Someday this may not be the case
426 * (if we allow random `It's sitting out there), so provide a
427 * safe fall-back into the default behaviour.
428 */
429
430 if (tok == MDOC_It) {
431 for (n = mdoc->last; n != NULL; n = n->parent) {
432 if (n->tok != MDOC_Bl)
433 continue;
434 if (n->norm->Bl.type == LIST_column)
435 fl = ARGSFL_TABSEP;
436 break;
437 }
438 }
439
440 return args(mdoc, line, pos, buf, fl, v);
441 }
442
443 static enum margserr
args(struct roff_man * mdoc,int line,int * pos,char * buf,enum argsflag fl,char ** v)444 args(struct roff_man *mdoc, int line, int *pos,
445 char *buf, enum argsflag fl, char **v)
446 {
447 char *p;
448 char *v_local;
449 int pairs;
450
451 if (buf[*pos] == '\0') {
452 if (mdoc->flags & MDOC_PHRASELIT &&
453 ! (mdoc->flags & MDOC_PHRASE)) {
454 mandoc_msg(MANDOCERR_ARG_QUOTE, line, *pos, NULL);
455 mdoc->flags &= ~MDOC_PHRASELIT;
456 }
457 return ARGS_EOLN;
458 }
459
460 if (v == NULL)
461 v = &v_local;
462 *v = buf + *pos;
463
464 if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos))
465 return ARGS_PUNCT;
466
467 /*
468 * Tabs in `It' lines in `Bl -column' can't be escaped.
469 * Phrases are reparsed for `Ta' and other macros later.
470 */
471
472 if (fl == ARGSFL_TABSEP) {
473 if ((p = strchr(*v, '\t')) != NULL) {
474
475 /*
476 * Words right before and right after
477 * tab characters are not parsed,
478 * unless there is a blank in between.
479 */
480
481 if (p > buf && p[-1] != ' ')
482 mdoc->flags |= MDOC_PHRASEQL;
483 if (p[1] != ' ')
484 mdoc->flags |= MDOC_PHRASEQN;
485
486 /*
487 * One or more blanks after a tab cause
488 * one leading blank in the next column.
489 * So skip all but one of them.
490 */
491
492 *pos += (int)(p - *v) + 1;
493 while (buf[*pos] == ' ' && buf[*pos + 1] == ' ')
494 (*pos)++;
495
496 /*
497 * A tab at the end of an input line
498 * switches to the next column.
499 */
500
501 if (buf[*pos] == '\0' || buf[*pos + 1] == '\0')
502 mdoc->flags |= MDOC_PHRASEQN;
503 } else {
504 p = strchr(*v, '\0');
505 if (p[-1] == ' ')
506 mandoc_msg(MANDOCERR_SPACE_EOL,
507 line, *pos, NULL);
508 *pos += (int)(p - *v);
509 }
510
511 /* Skip any trailing blank characters. */
512 while (p > *v && p[-1] == ' ' &&
513 (p - 1 == *v || p[-2] != '\\'))
514 p--;
515 *p = '\0';
516
517 return ARGS_PHRASE;
518 }
519
520 /*
521 * Process a quoted literal. A quote begins with a double-quote
522 * and ends with a double-quote NOT preceded by a double-quote.
523 * NUL-terminate the literal in place.
524 * Collapse pairs of quotes inside quoted literals.
525 * Whitespace is NOT involved in literal termination.
526 */
527
528 if (mdoc->flags & MDOC_PHRASELIT ||
529 (mdoc->flags & MDOC_PHRASE && buf[*pos] == '\"')) {
530 if ((mdoc->flags & MDOC_PHRASELIT) == 0) {
531 *v = &buf[++(*pos)];
532 mdoc->flags |= MDOC_PHRASELIT;
533 }
534 pairs = 0;
535 for ( ; buf[*pos]; (*pos)++) {
536 /* Move following text left after quoted quotes. */
537 if (pairs)
538 buf[*pos - pairs] = buf[*pos];
539 if ('\"' != buf[*pos])
540 continue;
541 /* Unquoted quotes end quoted args. */
542 if ('\"' != buf[*pos + 1])
543 break;
544 /* Quoted quotes collapse. */
545 pairs++;
546 (*pos)++;
547 }
548 if (pairs)
549 buf[*pos - pairs] = '\0';
550
551 if (buf[*pos] == '\0') {
552 if ( ! (mdoc->flags & MDOC_PHRASE))
553 mandoc_msg(MANDOCERR_ARG_QUOTE,
554 line, *pos, NULL);
555 return ARGS_WORD;
556 }
557
558 mdoc->flags &= ~MDOC_PHRASELIT;
559 buf[(*pos)++] = '\0';
560
561 if ('\0' == buf[*pos])
562 return ARGS_WORD;
563
564 while (' ' == buf[*pos])
565 (*pos)++;
566
567 if ('\0' == buf[*pos])
568 mandoc_msg(MANDOCERR_SPACE_EOL, line, *pos, NULL);
569
570 return ARGS_WORD;
571 }
572
573 p = &buf[*pos];
574 *v = roff_getarg(mdoc->roff, &p, line, pos);
575 if (v == &v_local)
576 free(*v);
577
578 /*
579 * After parsing the last word in this phrase,
580 * tell lookup() whether or not to interpret it.
581 */
582
583 if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) {
584 mdoc->flags &= ~MDOC_PHRASEQL;
585 mdoc->flags |= MDOC_PHRASEQF;
586 }
587 return ARGS_ALLOC;
588 }
589
590 /*
591 * Check if the string consists only of space-separated closing
592 * delimiters. This is a bit of a dance: the first must be a close
593 * delimiter, but it may be followed by middle delimiters. Arbitrary
594 * whitespace may separate these tokens.
595 */
596 static int
args_checkpunct(const char * buf,int i)597 args_checkpunct(const char *buf, int i)
598 {
599 int j;
600 char dbuf[DELIMSZ];
601 enum mdelim d;
602
603 /* First token must be a close-delimiter. */
604
605 for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
606 dbuf[j] = buf[i];
607
608 if (DELIMSZ == j)
609 return 0;
610
611 dbuf[j] = '\0';
612 if (DELIM_CLOSE != mdoc_isdelim(dbuf))
613 return 0;
614
615 while (' ' == buf[i])
616 i++;
617
618 /* Remaining must NOT be open/none. */
619
620 while (buf[i]) {
621 j = 0;
622 while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
623 dbuf[j++] = buf[i++];
624
625 if (DELIMSZ == j)
626 return 0;
627
628 dbuf[j] = '\0';
629 d = mdoc_isdelim(dbuf);
630 if (DELIM_NONE == d || DELIM_OPEN == d)
631 return 0;
632
633 while (' ' == buf[i])
634 i++;
635 }
636
637 return '\0' == buf[i];
638 }
639
640 static void
argv_multi(struct roff_man * mdoc,int line,struct mdoc_argv * v,int * pos,char * buf)641 argv_multi(struct roff_man *mdoc, int line,
642 struct mdoc_argv *v, int *pos, char *buf)
643 {
644 enum margserr ac;
645 char *p;
646
647 for (v->sz = 0; ; v->sz++) {
648 if (buf[*pos] == '-')
649 break;
650 ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
651 if (ac == ARGS_EOLN)
652 break;
653
654 if (v->sz % MULTI_STEP == 0)
655 v->value = mandoc_reallocarray(v->value,
656 v->sz + MULTI_STEP, sizeof(char *));
657
658 if (ac != ARGS_ALLOC)
659 p = mandoc_strdup(p);
660 v->value[(int)v->sz] = p;
661 }
662 }
663
664 static void
argv_single(struct roff_man * mdoc,int line,struct mdoc_argv * v,int * pos,char * buf)665 argv_single(struct roff_man *mdoc, int line,
666 struct mdoc_argv *v, int *pos, char *buf)
667 {
668 enum margserr ac;
669 char *p;
670
671 ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
672 if (ac == ARGS_EOLN)
673 return;
674
675 if (ac != ARGS_ALLOC)
676 p = mandoc_strdup(p);
677
678 v->sz = 1;
679 v->value = mandoc_malloc(sizeof(char *));
680 v->value[0] = p;
681 }
682