1 /* $OpenBSD: mdoc_argv.c,v 1.76 2019/07/11 16:56:52 schwarze Exp $ */
2 /*
3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2012, 2014-2019 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 <sys/types.h>
19
20 #include <assert.h>
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <string.h>
24
25 #include "mandoc_aux.h"
26 #include "mandoc.h"
27 #include "roff.h"
28 #include "mdoc.h"
29 #include "libmandoc.h"
30 #include "roff_int.h"
31 #include "libmdoc.h"
32
33 #define MULTI_STEP 5 /* pre-allocate argument values */
34 #define DELIMSZ 6 /* max possible size of a delimiter */
35
36 enum argsflag {
37 ARGSFL_NONE = 0,
38 ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
39 ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
40 };
41
42 enum argvflag {
43 ARGV_NONE, /* no args to flag (e.g., -split) */
44 ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
45 ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
46 };
47
48 struct mdocarg {
49 enum argsflag flags;
50 const enum mdocargt *argvs;
51 };
52
53 static void argn_free(struct mdoc_arg *, int);
54 static enum margserr args(struct roff_man *, int, int *,
55 char *, enum argsflag, char **);
56 static int args_checkpunct(const char *, int);
57 static void argv_multi(struct roff_man *, int,
58 struct mdoc_argv *, int *, char *);
59 static void argv_single(struct roff_man *, int,
60 struct mdoc_argv *, int *, char *);
61
62 static const enum argvflag argvflags[MDOC_ARG_MAX] = {
63 ARGV_NONE, /* MDOC_Split */
64 ARGV_NONE, /* MDOC_Nosplit */
65 ARGV_NONE, /* MDOC_Ragged */
66 ARGV_NONE, /* MDOC_Unfilled */
67 ARGV_NONE, /* MDOC_Literal */
68 ARGV_SINGLE, /* MDOC_File */
69 ARGV_SINGLE, /* MDOC_Offset */
70 ARGV_NONE, /* MDOC_Bullet */
71 ARGV_NONE, /* MDOC_Dash */
72 ARGV_NONE, /* MDOC_Hyphen */
73 ARGV_NONE, /* MDOC_Item */
74 ARGV_NONE, /* MDOC_Enum */
75 ARGV_NONE, /* MDOC_Tag */
76 ARGV_NONE, /* MDOC_Diag */
77 ARGV_NONE, /* MDOC_Hang */
78 ARGV_NONE, /* MDOC_Ohang */
79 ARGV_NONE, /* MDOC_Inset */
80 ARGV_MULTI, /* MDOC_Column */
81 ARGV_SINGLE, /* MDOC_Width */
82 ARGV_NONE, /* MDOC_Compact */
83 ARGV_NONE, /* MDOC_Std */
84 ARGV_NONE, /* MDOC_Filled */
85 ARGV_NONE, /* MDOC_Words */
86 ARGV_NONE, /* MDOC_Emphasis */
87 ARGV_NONE, /* MDOC_Symbolic */
88 ARGV_NONE /* MDOC_Symbolic */
89 };
90
91 static const enum mdocargt args_Ex[] = {
92 MDOC_Std,
93 MDOC_ARG_MAX
94 };
95
96 static const enum mdocargt args_An[] = {
97 MDOC_Split,
98 MDOC_Nosplit,
99 MDOC_ARG_MAX
100 };
101
102 static const enum mdocargt args_Bd[] = {
103 MDOC_Ragged,
104 MDOC_Unfilled,
105 MDOC_Filled,
106 MDOC_Literal,
107 MDOC_File,
108 MDOC_Offset,
109 MDOC_Compact,
110 MDOC_Centred,
111 MDOC_ARG_MAX
112 };
113
114 static const enum mdocargt args_Bf[] = {
115 MDOC_Emphasis,
116 MDOC_Literal,
117 MDOC_Symbolic,
118 MDOC_ARG_MAX
119 };
120
121 static const enum mdocargt args_Bk[] = {
122 MDOC_Words,
123 MDOC_ARG_MAX
124 };
125
126 static const enum mdocargt args_Bl[] = {
127 MDOC_Bullet,
128 MDOC_Dash,
129 MDOC_Hyphen,
130 MDOC_Item,
131 MDOC_Enum,
132 MDOC_Tag,
133 MDOC_Diag,
134 MDOC_Hang,
135 MDOC_Ohang,
136 MDOC_Inset,
137 MDOC_Column,
138 MDOC_Width,
139 MDOC_Offset,
140 MDOC_Compact,
141 MDOC_Nested,
142 MDOC_ARG_MAX
143 };
144
145 static const struct mdocarg mdocargs[MDOC_MAX - MDOC_Dd] = {
146 { ARGSFL_NONE, NULL }, /* Dd */
147 { ARGSFL_NONE, NULL }, /* Dt */
148 { ARGSFL_NONE, NULL }, /* Os */
149 { ARGSFL_NONE, NULL }, /* Sh */
150 { ARGSFL_NONE, NULL }, /* Ss */
151 { ARGSFL_NONE, NULL }, /* Pp */
152 { ARGSFL_DELIM, NULL }, /* D1 */
153 { ARGSFL_DELIM, NULL }, /* Dl */
154 { ARGSFL_NONE, args_Bd }, /* Bd */
155 { ARGSFL_NONE, NULL }, /* Ed */
156 { ARGSFL_NONE, args_Bl }, /* Bl */
157 { ARGSFL_NONE, NULL }, /* El */
158 { ARGSFL_NONE, NULL }, /* It */
159 { ARGSFL_DELIM, NULL }, /* Ad */
160 { ARGSFL_DELIM, args_An }, /* An */
161 { ARGSFL_DELIM, NULL }, /* Ap */
162 { ARGSFL_DELIM, NULL }, /* Ar */
163 { ARGSFL_DELIM, NULL }, /* Cd */
164 { ARGSFL_DELIM, NULL }, /* Cm */
165 { ARGSFL_DELIM, NULL }, /* Dv */
166 { ARGSFL_DELIM, NULL }, /* Er */
167 { ARGSFL_DELIM, NULL }, /* Ev */
168 { ARGSFL_NONE, args_Ex }, /* Ex */
169 { ARGSFL_DELIM, NULL }, /* Fa */
170 { ARGSFL_NONE, NULL }, /* Fd */
171 { ARGSFL_DELIM, NULL }, /* Fl */
172 { ARGSFL_DELIM, NULL }, /* Fn */
173 { ARGSFL_DELIM, NULL }, /* Ft */
174 { ARGSFL_DELIM, NULL }, /* Ic */
175 { ARGSFL_DELIM, NULL }, /* In */
176 { ARGSFL_DELIM, NULL }, /* Li */
177 { ARGSFL_NONE, NULL }, /* Nd */
178 { ARGSFL_DELIM, NULL }, /* Nm */
179 { ARGSFL_DELIM, NULL }, /* Op */
180 { ARGSFL_DELIM, NULL }, /* Ot */
181 { ARGSFL_DELIM, NULL }, /* Pa */
182 { ARGSFL_NONE, args_Ex }, /* Rv */
183 { ARGSFL_DELIM, NULL }, /* St */
184 { ARGSFL_DELIM, NULL }, /* Va */
185 { ARGSFL_DELIM, NULL }, /* Vt */
186 { ARGSFL_DELIM, NULL }, /* Xr */
187 { ARGSFL_NONE, NULL }, /* %A */
188 { ARGSFL_NONE, NULL }, /* %B */
189 { ARGSFL_NONE, NULL }, /* %D */
190 { ARGSFL_NONE, NULL }, /* %I */
191 { ARGSFL_NONE, NULL }, /* %J */
192 { ARGSFL_NONE, NULL }, /* %N */
193 { ARGSFL_NONE, NULL }, /* %O */
194 { ARGSFL_NONE, NULL }, /* %P */
195 { ARGSFL_NONE, NULL }, /* %R */
196 { ARGSFL_NONE, NULL }, /* %T */
197 { ARGSFL_NONE, NULL }, /* %V */
198 { ARGSFL_DELIM, NULL }, /* Ac */
199 { ARGSFL_NONE, NULL }, /* Ao */
200 { ARGSFL_DELIM, NULL }, /* Aq */
201 { ARGSFL_DELIM, NULL }, /* At */
202 { ARGSFL_DELIM, NULL }, /* Bc */
203 { ARGSFL_NONE, args_Bf }, /* Bf */
204 { ARGSFL_NONE, NULL }, /* Bo */
205 { ARGSFL_DELIM, NULL }, /* Bq */
206 { ARGSFL_DELIM, NULL }, /* Bsx */
207 { ARGSFL_DELIM, NULL }, /* Bx */
208 { ARGSFL_NONE, NULL }, /* Db */
209 { ARGSFL_DELIM, NULL }, /* Dc */
210 { ARGSFL_NONE, NULL }, /* Do */
211 { ARGSFL_DELIM, NULL }, /* Dq */
212 { ARGSFL_DELIM, NULL }, /* Ec */
213 { ARGSFL_NONE, NULL }, /* Ef */
214 { ARGSFL_DELIM, NULL }, /* Em */
215 { ARGSFL_NONE, NULL }, /* Eo */
216 { ARGSFL_DELIM, NULL }, /* Fx */
217 { ARGSFL_DELIM, NULL }, /* Ms */
218 { ARGSFL_DELIM, NULL }, /* No */
219 { ARGSFL_DELIM, NULL }, /* Ns */
220 { ARGSFL_DELIM, NULL }, /* Nx */
221 { ARGSFL_DELIM, NULL }, /* Ox */
222 { ARGSFL_DELIM, NULL }, /* Pc */
223 { ARGSFL_DELIM, NULL }, /* Pf */
224 { ARGSFL_NONE, NULL }, /* Po */
225 { ARGSFL_DELIM, NULL }, /* Pq */
226 { ARGSFL_DELIM, NULL }, /* Qc */
227 { ARGSFL_DELIM, NULL }, /* Ql */
228 { ARGSFL_NONE, NULL }, /* Qo */
229 { ARGSFL_DELIM, NULL }, /* Qq */
230 { ARGSFL_NONE, NULL }, /* Re */
231 { ARGSFL_NONE, NULL }, /* Rs */
232 { ARGSFL_DELIM, NULL }, /* Sc */
233 { ARGSFL_NONE, NULL }, /* So */
234 { ARGSFL_DELIM, NULL }, /* Sq */
235 { ARGSFL_NONE, NULL }, /* Sm */
236 { ARGSFL_DELIM, NULL }, /* Sx */
237 { ARGSFL_DELIM, NULL }, /* Sy */
238 { ARGSFL_DELIM, NULL }, /* Tn */
239 { ARGSFL_DELIM, NULL }, /* Ux */
240 { ARGSFL_DELIM, NULL }, /* Xc */
241 { ARGSFL_NONE, NULL }, /* Xo */
242 { ARGSFL_NONE, NULL }, /* Fo */
243 { ARGSFL_DELIM, NULL }, /* Fc */
244 { ARGSFL_NONE, NULL }, /* Oo */
245 { ARGSFL_DELIM, NULL }, /* Oc */
246 { ARGSFL_NONE, args_Bk }, /* Bk */
247 { ARGSFL_NONE, NULL }, /* Ek */
248 { ARGSFL_NONE, NULL }, /* Bt */
249 { ARGSFL_NONE, NULL }, /* Hf */
250 { ARGSFL_DELIM, NULL }, /* Fr */
251 { ARGSFL_NONE, NULL }, /* Ud */
252 { ARGSFL_DELIM, NULL }, /* Lb */
253 { ARGSFL_NONE, NULL }, /* Lp */
254 { ARGSFL_DELIM, NULL }, /* Lk */
255 { ARGSFL_DELIM, NULL }, /* Mt */
256 { ARGSFL_DELIM, NULL }, /* Brq */
257 { ARGSFL_NONE, NULL }, /* Bro */
258 { ARGSFL_DELIM, NULL }, /* Brc */
259 { ARGSFL_NONE, NULL }, /* %C */
260 { ARGSFL_NONE, NULL }, /* Es */
261 { ARGSFL_DELIM, NULL }, /* En */
262 { ARGSFL_DELIM, NULL }, /* Dx */
263 { ARGSFL_NONE, NULL }, /* %Q */
264 { ARGSFL_NONE, NULL }, /* %U */
265 { ARGSFL_NONE, NULL }, /* Ta */
266 };
267
268
269 /*
270 * Parse flags and their arguments from the input line.
271 * These come in the form -flag [argument ...].
272 * Some flags take no argument, some one, some multiple.
273 */
274 void
mdoc_argv(struct roff_man * mdoc,int line,enum roff_tok tok,struct mdoc_arg ** reta,int * pos,char * buf)275 mdoc_argv(struct roff_man *mdoc, int line, enum roff_tok tok,
276 struct mdoc_arg **reta, int *pos, char *buf)
277 {
278 struct mdoc_argv tmpv;
279 struct mdoc_argv **retv;
280 const enum mdocargt *argtable;
281 char *argname;
282 int ipos, retc;
283 char savechar;
284
285 *reta = NULL;
286
287 /* Which flags does this macro support? */
288
289 assert(tok >= MDOC_Dd && tok < MDOC_MAX);
290 argtable = mdocargs[tok - MDOC_Dd].argvs;
291 if (argtable == NULL)
292 return;
293
294 /* Loop over the flags on the input line. */
295
296 ipos = *pos;
297 while (buf[ipos] == '-') {
298
299 /* Seek to the first unescaped space. */
300
301 for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++)
302 if (buf[ipos] == ' ' && buf[ipos - 1] != '\\')
303 break;
304
305 /*
306 * We want to nil-terminate the word to look it up.
307 * But we may not have a flag, in which case we need
308 * to restore the line as-is. So keep around the
309 * stray byte, which we'll reset upon exiting.
310 */
311
312 if ((savechar = buf[ipos]) != '\0')
313 buf[ipos++] = '\0';
314
315 /*
316 * Now look up the word as a flag. Use temporary
317 * storage that we'll copy into the node's flags.
318 */
319
320 while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX)
321 if ( ! strcmp(argname, mdoc_argnames[tmpv.arg]))
322 break;
323
324 /* If it isn't a flag, restore the saved byte. */
325
326 if (tmpv.arg == MDOC_ARG_MAX) {
327 if (savechar != '\0')
328 buf[ipos - 1] = savechar;
329 break;
330 }
331
332 /* Read to the next word (the first argument). */
333
334 while (buf[ipos] == ' ')
335 ipos++;
336
337 /* Parse the arguments of the flag. */
338
339 tmpv.line = line;
340 tmpv.pos = *pos;
341 tmpv.sz = 0;
342 tmpv.value = NULL;
343
344 switch (argvflags[tmpv.arg]) {
345 case ARGV_SINGLE:
346 argv_single(mdoc, line, &tmpv, &ipos, buf);
347 break;
348 case ARGV_MULTI:
349 argv_multi(mdoc, line, &tmpv, &ipos, buf);
350 break;
351 case ARGV_NONE:
352 break;
353 }
354
355 /* Append to the return values. */
356
357 if (*reta == NULL)
358 *reta = mandoc_calloc(1, sizeof(**reta));
359
360 retc = ++(*reta)->argc;
361 retv = &(*reta)->argv;
362 *retv = mandoc_reallocarray(*retv, retc, sizeof(**retv));
363 memcpy(*retv + retc - 1, &tmpv, sizeof(**retv));
364
365 /* Prepare for parsing the next flag. */
366
367 *pos = ipos;
368 argtable = mdocargs[tok - MDOC_Dd].argvs;
369 }
370 }
371
372 void
mdoc_argv_free(struct mdoc_arg * p)373 mdoc_argv_free(struct mdoc_arg *p)
374 {
375 int i;
376
377 if (NULL == p)
378 return;
379
380 if (p->refcnt) {
381 --(p->refcnt);
382 if (p->refcnt)
383 return;
384 }
385 assert(p->argc);
386
387 for (i = (int)p->argc - 1; i >= 0; i--)
388 argn_free(p, i);
389
390 free(p->argv);
391 free(p);
392 }
393
394 static void
argn_free(struct mdoc_arg * p,int iarg)395 argn_free(struct mdoc_arg *p, int iarg)
396 {
397 struct mdoc_argv *arg;
398 int j;
399
400 arg = &p->argv[iarg];
401
402 if (arg->sz && arg->value) {
403 for (j = (int)arg->sz - 1; j >= 0; j--)
404 free(arg->value[j]);
405 free(arg->value);
406 }
407
408 for (--p->argc; iarg < (int)p->argc; iarg++)
409 p->argv[iarg] = p->argv[iarg+1];
410 }
411
412 enum margserr
mdoc_args(struct roff_man * mdoc,int line,int * pos,char * buf,enum roff_tok tok,char ** v)413 mdoc_args(struct roff_man *mdoc, int line, int *pos,
414 char *buf, enum roff_tok tok, char **v)
415 {
416 struct roff_node *n;
417 enum argsflag fl;
418
419 fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok - MDOC_Dd].flags;
420
421 /*
422 * We know that we're in an `It', so it's reasonable to expect
423 * us to be sitting in a `Bl'. Someday this may not be the case
424 * (if we allow random `It's sitting out there), so provide a
425 * safe fall-back into the default behaviour.
426 */
427
428 if (tok == MDOC_It) {
429 for (n = mdoc->last; n != NULL; n = n->parent) {
430 if (n->tok != MDOC_Bl)
431 continue;
432 if (n->norm->Bl.type == LIST_column)
433 fl = ARGSFL_TABSEP;
434 break;
435 }
436 }
437
438 return args(mdoc, line, pos, buf, fl, v);
439 }
440
441 static enum margserr
args(struct roff_man * mdoc,int line,int * pos,char * buf,enum argsflag fl,char ** v)442 args(struct roff_man *mdoc, int line, int *pos,
443 char *buf, enum argsflag fl, char **v)
444 {
445 char *p;
446 char *v_local;
447 int pairs;
448
449 if (buf[*pos] == '\0') {
450 if (mdoc->flags & MDOC_PHRASELIT &&
451 ! (mdoc->flags & MDOC_PHRASE)) {
452 mandoc_msg(MANDOCERR_ARG_QUOTE, line, *pos, NULL);
453 mdoc->flags &= ~MDOC_PHRASELIT;
454 }
455 mdoc->flags &= ~MDOC_PHRASEQL;
456 return ARGS_EOLN;
457 }
458
459 if (v == NULL)
460 v = &v_local;
461 *v = buf + *pos;
462
463 if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos))
464 return ARGS_PUNCT;
465
466 /*
467 * Tabs in `It' lines in `Bl -column' can't be escaped.
468 * Phrases are reparsed for `Ta' and other macros later.
469 */
470
471 if (fl == ARGSFL_TABSEP) {
472 if ((p = strchr(*v, '\t')) != NULL) {
473
474 /*
475 * Words right before and right after
476 * tab characters are not parsed,
477 * unless there is a blank in between.
478 */
479
480 if (p > buf && p[-1] != ' ')
481 mdoc->flags |= MDOC_PHRASEQL;
482 if (p[1] != ' ')
483 mdoc->flags |= MDOC_PHRASEQN;
484
485 /*
486 * One or more blanks after a tab cause
487 * one leading blank in the next column.
488 * So skip all but one of them.
489 */
490
491 *pos += (int)(p - *v) + 1;
492 while (buf[*pos] == ' ' && buf[*pos + 1] == ' ')
493 (*pos)++;
494
495 /*
496 * A tab at the end of an input line
497 * switches to the next column.
498 */
499
500 if (buf[*pos] == '\0' || buf[*pos + 1] == '\0')
501 mdoc->flags |= MDOC_PHRASEQN;
502 } else {
503 p = strchr(*v, '\0');
504 if (p[-1] == ' ')
505 mandoc_msg(MANDOCERR_SPACE_EOL,
506 line, *pos, NULL);
507 *pos += (int)(p - *v);
508 }
509
510 /* Skip any trailing blank characters. */
511 while (p > *v && p[-1] == ' ' &&
512 (p - 1 == *v || p[-2] != '\\'))
513 p--;
514 *p = '\0';
515
516 return ARGS_PHRASE;
517 }
518
519 /*
520 * Process a quoted literal. A quote begins with a double-quote
521 * and ends with a double-quote NOT preceded by a double-quote.
522 * NUL-terminate the literal in place.
523 * Collapse pairs of quotes inside quoted literals.
524 * Whitespace is NOT involved in literal termination.
525 */
526
527 if (mdoc->flags & MDOC_PHRASELIT ||
528 (mdoc->flags & MDOC_PHRASE && buf[*pos] == '\"')) {
529 if ((mdoc->flags & MDOC_PHRASELIT) == 0) {
530 *v = &buf[++(*pos)];
531 mdoc->flags |= MDOC_PHRASELIT;
532 }
533 pairs = 0;
534 for ( ; buf[*pos]; (*pos)++) {
535 /* Move following text left after quoted quotes. */
536 if (pairs)
537 buf[*pos - pairs] = buf[*pos];
538 if ('\"' != buf[*pos])
539 continue;
540 /* Unquoted quotes end quoted args. */
541 if ('\"' != buf[*pos + 1])
542 break;
543 /* Quoted quotes collapse. */
544 pairs++;
545 (*pos)++;
546 }
547 if (pairs)
548 buf[*pos - pairs] = '\0';
549
550 if (buf[*pos] == '\0') {
551 if ( ! (mdoc->flags & MDOC_PHRASE))
552 mandoc_msg(MANDOCERR_ARG_QUOTE,
553 line, *pos, NULL);
554 return ARGS_WORD;
555 }
556
557 mdoc->flags &= ~MDOC_PHRASELIT;
558 buf[(*pos)++] = '\0';
559
560 if ('\0' == buf[*pos])
561 return ARGS_WORD;
562
563 while (' ' == buf[*pos])
564 (*pos)++;
565
566 if ('\0' == buf[*pos])
567 mandoc_msg(MANDOCERR_SPACE_EOL, line, *pos, NULL);
568
569 return ARGS_WORD;
570 }
571
572 p = &buf[*pos];
573 *v = roff_getarg(mdoc->roff, &p, line, pos);
574 if (v == &v_local)
575 free(*v);
576
577 /*
578 * After parsing the last word in this phrase,
579 * tell lookup() whether or not to interpret it.
580 */
581
582 if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) {
583 mdoc->flags &= ~MDOC_PHRASEQL;
584 mdoc->flags |= MDOC_PHRASEQF;
585 }
586 return ARGS_ALLOC;
587 }
588
589 /*
590 * Check if the string consists only of space-separated closing
591 * delimiters. This is a bit of a dance: the first must be a close
592 * delimiter, but it may be followed by middle delimiters. Arbitrary
593 * whitespace may separate these tokens.
594 */
595 static int
args_checkpunct(const char * buf,int i)596 args_checkpunct(const char *buf, int i)
597 {
598 int j;
599 char dbuf[DELIMSZ];
600 enum mdelim d;
601
602 /* First token must be a close-delimiter. */
603
604 for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
605 dbuf[j] = buf[i];
606
607 if (DELIMSZ == j)
608 return 0;
609
610 dbuf[j] = '\0';
611 if (DELIM_CLOSE != mdoc_isdelim(dbuf))
612 return 0;
613
614 while (' ' == buf[i])
615 i++;
616
617 /* Remaining must NOT be open/none. */
618
619 while (buf[i]) {
620 j = 0;
621 while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
622 dbuf[j++] = buf[i++];
623
624 if (DELIMSZ == j)
625 return 0;
626
627 dbuf[j] = '\0';
628 d = mdoc_isdelim(dbuf);
629 if (DELIM_NONE == d || DELIM_OPEN == d)
630 return 0;
631
632 while (' ' == buf[i])
633 i++;
634 }
635
636 return '\0' == buf[i];
637 }
638
639 static void
argv_multi(struct roff_man * mdoc,int line,struct mdoc_argv * v,int * pos,char * buf)640 argv_multi(struct roff_man *mdoc, int line,
641 struct mdoc_argv *v, int *pos, char *buf)
642 {
643 enum margserr ac;
644 char *p;
645
646 for (v->sz = 0; ; v->sz++) {
647 if (buf[*pos] == '-')
648 break;
649 ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
650 if (ac == ARGS_EOLN)
651 break;
652
653 if (v->sz % MULTI_STEP == 0)
654 v->value = mandoc_reallocarray(v->value,
655 v->sz + MULTI_STEP, sizeof(char *));
656
657 if (ac != ARGS_ALLOC)
658 p = mandoc_strdup(p);
659 v->value[(int)v->sz] = p;
660 }
661 }
662
663 static void
argv_single(struct roff_man * mdoc,int line,struct mdoc_argv * v,int * pos,char * buf)664 argv_single(struct roff_man *mdoc, int line,
665 struct mdoc_argv *v, int *pos, char *buf)
666 {
667 enum margserr ac;
668 char *p;
669
670 ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
671 if (ac == ARGS_EOLN)
672 return;
673
674 if (ac != ARGS_ALLOC)
675 p = mandoc_strdup(p);
676
677 v->sz = 1;
678 v->value = mandoc_malloc(sizeof(char *));
679 v->value[0] = p;
680 }
681