Import mdocml-1.12.1
[dragonfly.git] / contrib / mdocml / mdoc_argv.c
CommitLineData
36342e81 1/* $Id: mdoc_argv.c,v 1.82 2012/03/23 05:50:24 kristaps Exp $ */
80387638 2/*
36342e81 3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17#ifdef HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <sys/types.h>
22
23#include <assert.h>
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24#include <stdlib.h>
25#include <stdio.h>
26#include <string.h>
27
60e1e752 28#include "mdoc.h"
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29#include "mandoc.h"
30#include "libmdoc.h"
31#include "libmandoc.h"
32
60e1e752 33#define MULTI_STEP 5 /* pre-allocate argument values */
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34#define DELIMSZ 6 /* max possible size of a delimiter */
35
36enum argsflag {
37 ARGSFL_NONE = 0,
38 ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
39 ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
40};
41
42enum 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 ARGV_OPT_SINGLE /* optional arg (e.g., -offset [xxx]) */
47};
80387638 48
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49struct mdocarg {
50 enum argsflag flags;
51 const enum mdocargt *argvs;
52};
53
54static void argn_free(struct mdoc_arg *, int);
80387638 55static enum margserr args(struct mdoc *, int, int *,
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56 char *, enum argsflag, char **);
57static int args_checkpunct(const char *, int);
36342e81 58static int argv_multi(struct mdoc *, int,
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59 struct mdoc_argv *, int *, char *);
60static int argv_opt_single(struct mdoc *, int,
61 struct mdoc_argv *, int *, char *);
36342e81 62static int argv_single(struct mdoc *, int,
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63 struct mdoc_argv *, int *, char *);
64
60e1e752 65static const enum argvflag argvflags[MDOC_ARG_MAX] = {
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66 ARGV_NONE, /* MDOC_Split */
67 ARGV_NONE, /* MDOC_Nosplit */
68 ARGV_NONE, /* MDOC_Ragged */
69 ARGV_NONE, /* MDOC_Unfilled */
70 ARGV_NONE, /* MDOC_Literal */
71 ARGV_SINGLE, /* MDOC_File */
72 ARGV_OPT_SINGLE, /* MDOC_Offset */
73 ARGV_NONE, /* MDOC_Bullet */
74 ARGV_NONE, /* MDOC_Dash */
75 ARGV_NONE, /* MDOC_Hyphen */
76 ARGV_NONE, /* MDOC_Item */
77 ARGV_NONE, /* MDOC_Enum */
78 ARGV_NONE, /* MDOC_Tag */
79 ARGV_NONE, /* MDOC_Diag */
80 ARGV_NONE, /* MDOC_Hang */
81 ARGV_NONE, /* MDOC_Ohang */
82 ARGV_NONE, /* MDOC_Inset */
83 ARGV_MULTI, /* MDOC_Column */
36342e81 84 ARGV_OPT_SINGLE, /* MDOC_Width */
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85 ARGV_NONE, /* MDOC_Compact */
86 ARGV_NONE, /* MDOC_Std */
87 ARGV_NONE, /* MDOC_Filled */
88 ARGV_NONE, /* MDOC_Words */
89 ARGV_NONE, /* MDOC_Emphasis */
90 ARGV_NONE, /* MDOC_Symbolic */
91 ARGV_NONE /* MDOC_Symbolic */
92};
93
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94static const enum mdocargt args_Ex[] = {
95 MDOC_Std,
96 MDOC_ARG_MAX
97};
98
99static const enum mdocargt args_An[] = {
100 MDOC_Split,
101 MDOC_Nosplit,
102 MDOC_ARG_MAX
103};
104
105static const enum mdocargt args_Bd[] = {
106 MDOC_Ragged,
107 MDOC_Unfilled,
108 MDOC_Filled,
109 MDOC_Literal,
110 MDOC_File,
111 MDOC_Offset,
112 MDOC_Compact,
113 MDOC_Centred,
114 MDOC_ARG_MAX
115};
116
117static const enum mdocargt args_Bf[] = {
118 MDOC_Emphasis,
119 MDOC_Literal,
120 MDOC_Symbolic,
121 MDOC_ARG_MAX
122};
123
124static const enum mdocargt args_Bk[] = {
125 MDOC_Words,
126 MDOC_ARG_MAX
127};
128
129static const enum mdocargt args_Bl[] = {
130 MDOC_Bullet,
131 MDOC_Dash,
132 MDOC_Hyphen,
133 MDOC_Item,
134 MDOC_Enum,
135 MDOC_Tag,
136 MDOC_Diag,
137 MDOC_Hang,
138 MDOC_Ohang,
139 MDOC_Inset,
140 MDOC_Column,
141 MDOC_Width,
142 MDOC_Offset,
143 MDOC_Compact,
144 MDOC_Nested,
145 MDOC_ARG_MAX
146};
80387638 147
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148static const struct mdocarg mdocargs[MDOC_MAX] = {
149 { ARGSFL_NONE, NULL }, /* Ap */
150 { ARGSFL_NONE, NULL }, /* Dd */
151 { ARGSFL_NONE, NULL }, /* Dt */
152 { ARGSFL_NONE, NULL }, /* Os */
153 { ARGSFL_NONE, NULL }, /* Sh */
154 { ARGSFL_NONE, NULL }, /* Ss */
155 { ARGSFL_NONE, NULL }, /* Pp */
156 { ARGSFL_DELIM, NULL }, /* D1 */
157 { ARGSFL_DELIM, NULL }, /* Dl */
158 { ARGSFL_NONE, args_Bd }, /* Bd */
159 { ARGSFL_NONE, NULL }, /* Ed */
160 { ARGSFL_NONE, args_Bl }, /* Bl */
161 { ARGSFL_NONE, NULL }, /* El */
162 { ARGSFL_NONE, NULL }, /* It */
163 { ARGSFL_DELIM, NULL }, /* Ad */
164 { ARGSFL_DELIM, args_An }, /* An */
165 { ARGSFL_DELIM, NULL }, /* Ar */
166 { ARGSFL_NONE, NULL }, /* Cd */
167 { ARGSFL_DELIM, NULL }, /* Cm */
168 { ARGSFL_DELIM, NULL }, /* Dv */
169 { ARGSFL_DELIM, NULL }, /* Er */
170 { ARGSFL_DELIM, NULL }, /* Ev */
171 { ARGSFL_NONE, args_Ex }, /* Ex */
172 { ARGSFL_DELIM, NULL }, /* Fa */
173 { ARGSFL_NONE, NULL }, /* Fd */
174 { ARGSFL_DELIM, NULL }, /* Fl */
175 { ARGSFL_DELIM, NULL }, /* Fn */
176 { ARGSFL_DELIM, NULL }, /* Ft */
177 { ARGSFL_DELIM, NULL }, /* Ic */
178 { ARGSFL_NONE, NULL }, /* In */
179 { ARGSFL_DELIM, NULL }, /* Li */
180 { ARGSFL_NONE, NULL }, /* Nd */
181 { ARGSFL_DELIM, NULL }, /* Nm */
182 { ARGSFL_DELIM, NULL }, /* Op */
183 { ARGSFL_NONE, NULL }, /* Ot */
184 { ARGSFL_DELIM, NULL }, /* Pa */
185 { ARGSFL_NONE, args_Ex }, /* Rv */
186 { ARGSFL_DELIM, NULL }, /* St */
187 { ARGSFL_DELIM, NULL }, /* Va */
188 { ARGSFL_DELIM, NULL }, /* Vt */
189 { ARGSFL_DELIM, NULL }, /* Xr */
190 { ARGSFL_NONE, NULL }, /* %A */
191 { ARGSFL_NONE, NULL }, /* %B */
192 { ARGSFL_NONE, NULL }, /* %D */
193 { ARGSFL_NONE, NULL }, /* %I */
194 { ARGSFL_NONE, NULL }, /* %J */
195 { ARGSFL_NONE, NULL }, /* %N */
196 { ARGSFL_NONE, NULL }, /* %O */
197 { ARGSFL_NONE, NULL }, /* %P */
198 { ARGSFL_NONE, NULL }, /* %R */
199 { ARGSFL_NONE, NULL }, /* %T */
200 { ARGSFL_NONE, NULL }, /* %V */
201 { ARGSFL_DELIM, NULL }, /* Ac */
202 { ARGSFL_NONE, NULL }, /* Ao */
203 { ARGSFL_DELIM, NULL }, /* Aq */
204 { ARGSFL_DELIM, NULL }, /* At */
205 { ARGSFL_DELIM, NULL }, /* Bc */
206 { ARGSFL_NONE, args_Bf }, /* Bf */
207 { ARGSFL_NONE, NULL }, /* Bo */
208 { ARGSFL_DELIM, NULL }, /* Bq */
209 { ARGSFL_DELIM, NULL }, /* Bsx */
210 { ARGSFL_DELIM, NULL }, /* Bx */
211 { ARGSFL_NONE, NULL }, /* Db */
212 { ARGSFL_DELIM, NULL }, /* Dc */
213 { ARGSFL_NONE, NULL }, /* Do */
214 { ARGSFL_DELIM, NULL }, /* Dq */
215 { ARGSFL_DELIM, NULL }, /* Ec */
216 { ARGSFL_NONE, NULL }, /* Ef */
217 { ARGSFL_DELIM, NULL }, /* Em */
218 { ARGSFL_NONE, NULL }, /* Eo */
219 { ARGSFL_DELIM, NULL }, /* Fx */
220 { ARGSFL_DELIM, NULL }, /* Ms */
221 { ARGSFL_DELIM, NULL }, /* No */
222 { ARGSFL_DELIM, NULL }, /* Ns */
223 { ARGSFL_DELIM, NULL }, /* Nx */
224 { ARGSFL_DELIM, NULL }, /* Ox */
225 { ARGSFL_DELIM, NULL }, /* Pc */
226 { ARGSFL_DELIM, NULL }, /* Pf */
227 { ARGSFL_NONE, NULL }, /* Po */
228 { ARGSFL_DELIM, NULL }, /* Pq */
229 { ARGSFL_DELIM, NULL }, /* Qc */
230 { ARGSFL_DELIM, NULL }, /* Ql */
231 { ARGSFL_NONE, NULL }, /* Qo */
232 { ARGSFL_DELIM, NULL }, /* Qq */
233 { ARGSFL_NONE, NULL }, /* Re */
234 { ARGSFL_NONE, NULL }, /* Rs */
235 { ARGSFL_DELIM, NULL }, /* Sc */
236 { ARGSFL_NONE, NULL }, /* So */
237 { ARGSFL_DELIM, NULL }, /* Sq */
238 { ARGSFL_NONE, NULL }, /* Sm */
239 { ARGSFL_DELIM, NULL }, /* Sx */
240 { ARGSFL_DELIM, NULL }, /* Sy */
241 { ARGSFL_DELIM, NULL }, /* Tn */
242 { ARGSFL_DELIM, NULL }, /* Ux */
243 { ARGSFL_DELIM, NULL }, /* Xc */
244 { ARGSFL_NONE, NULL }, /* Xo */
245 { ARGSFL_NONE, NULL }, /* Fo */
246 { ARGSFL_NONE, NULL }, /* Fc */
247 { ARGSFL_NONE, NULL }, /* Oo */
248 { ARGSFL_DELIM, NULL }, /* Oc */
249 { ARGSFL_NONE, args_Bk }, /* Bk */
250 { ARGSFL_NONE, NULL }, /* Ek */
251 { ARGSFL_NONE, NULL }, /* Bt */
252 { ARGSFL_NONE, NULL }, /* Hf */
253 { ARGSFL_NONE, NULL }, /* Fr */
254 { ARGSFL_NONE, NULL }, /* Ud */
255 { ARGSFL_NONE, NULL }, /* Lb */
256 { ARGSFL_NONE, NULL }, /* Lp */
257 { ARGSFL_DELIM, NULL }, /* Lk */
258 { ARGSFL_DELIM, NULL }, /* Mt */
259 { ARGSFL_DELIM, NULL }, /* Brq */
260 { ARGSFL_NONE, NULL }, /* Bro */
261 { ARGSFL_DELIM, NULL }, /* Brc */
262 { ARGSFL_NONE, NULL }, /* %C */
263 { ARGSFL_NONE, NULL }, /* Es */
264 { ARGSFL_NONE, NULL }, /* En */
265 { ARGSFL_NONE, NULL }, /* Dx */
266 { ARGSFL_NONE, NULL }, /* %Q */
267 { ARGSFL_NONE, NULL }, /* br */
268 { ARGSFL_NONE, NULL }, /* sp */
269 { ARGSFL_NONE, NULL }, /* %U */
270 { ARGSFL_NONE, NULL }, /* Ta */
271};
272
273
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274/*
275 * Parse an argument from line text. This comes in the form of -key
276 * [value0...], which may either have a single mandatory value, at least
277 * one mandatory value, an optional single value, or no value.
278 */
279enum margverr
280mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
281 struct mdoc_arg **v, int *pos, char *buf)
282{
283 char *p, sv;
284 struct mdoc_argv tmp;
285 struct mdoc_arg *arg;
36342e81 286 const enum mdocargt *ap;
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287
288 if ('\0' == buf[*pos])
289 return(ARGV_EOLN);
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290 else if (NULL == (ap = mdocargs[tok].argvs))
291 return(ARGV_WORD);
292 else if ('-' != buf[*pos])
293 return(ARGV_WORD);
80387638 294
36342e81 295 /* Seek to the first unescaped space. */
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296
297 p = &buf[++(*pos)];
298
299 assert(*pos > 0);
300
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301 for ( ; buf[*pos] ; (*pos)++)
302 if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
303 break;
80387638 304
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305 /*
306 * We want to nil-terminate the word to look it up (it's easier
307 * that way). But we may not have a flag, in which case we need
308 * to restore the line as-is. So keep around the stray byte,
309 * which we'll reset upon exiting (if necessary).
310 */
80387638 311
36342e81 312 if ('\0' != (sv = buf[*pos]))
80387638 313 buf[(*pos)++] = '\0';
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314
315 /*
316 * Now look up the word as a flag. Use temporary storage that
317 * we'll copy into the node's flags, if necessary.
318 */
80387638 319
60e1e752 320 memset(&tmp, 0, sizeof(struct mdoc_argv));
36342e81 321
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322 tmp.line = line;
323 tmp.pos = *pos;
36342e81 324 tmp.arg = MDOC_ARG_MAX;
80387638 325
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326 while (MDOC_ARG_MAX != (tmp.arg = *ap++))
327 if (0 == strcmp(p, mdoc_argnames[tmp.arg]))
328 break;
80387638 329
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330 if (MDOC_ARG_MAX == tmp.arg) {
331 /*
332 * The flag was not found.
333 * Restore saved zeroed byte and return as a word.
334 */
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335 if (sv)
336 buf[*pos - 1] = sv;
337 return(ARGV_WORD);
338 }
339
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340 /* Read to the next word (the argument). */
341
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342 while (buf[*pos] && ' ' == buf[*pos])
343 (*pos)++;
344
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345 switch (argvflags[tmp.arg]) {
346 case (ARGV_SINGLE):
347 if ( ! argv_single(m, line, &tmp, pos, buf))
348 return(ARGV_ERROR);
349 break;
350 case (ARGV_MULTI):
351 if ( ! argv_multi(m, line, &tmp, pos, buf))
352 return(ARGV_ERROR);
353 break;
354 case (ARGV_OPT_SINGLE):
355 if ( ! argv_opt_single(m, line, &tmp, pos, buf))
356 return(ARGV_ERROR);
357 break;
358 case (ARGV_NONE):
359 break;
360 }
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361
362 if (NULL == (arg = *v))
363 arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
364
365 arg->argc++;
366 arg->argv = mandoc_realloc
367 (arg->argv, arg->argc * sizeof(struct mdoc_argv));
368
60e1e752 369 memcpy(&arg->argv[(int)arg->argc - 1],
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370 &tmp, sizeof(struct mdoc_argv));
371
372 return(ARGV_ARG);
373}
374
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375void
376mdoc_argv_free(struct mdoc_arg *p)
377{
378 int i;
379
380 if (NULL == p)
381 return;
382
383 if (p->refcnt) {
384 --(p->refcnt);
385 if (p->refcnt)
386 return;
387 }
388 assert(p->argc);
389
390 for (i = (int)p->argc - 1; i >= 0; i--)
60e1e752 391 argn_free(p, i);
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392
393 free(p->argv);
394 free(p);
395}
396
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397static void
398argn_free(struct mdoc_arg *p, int iarg)
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399{
400 struct mdoc_argv *arg;
401 int j;
402
403 arg = &p->argv[iarg];
404
405 if (arg->sz && arg->value) {
406 for (j = (int)arg->sz - 1; j >= 0; j--)
407 free(arg->value[j]);
408 free(arg->value);
409 }
410
411 for (--p->argc; iarg < (int)p->argc; iarg++)
412 p->argv[iarg] = p->argv[iarg+1];
413}
414
80387638 415enum margserr
a4c7eb57 416mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
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417{
418
a4c7eb57 419 return(args(m, line, pos, buf, ARGSFL_NONE, v));
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420}
421
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422enum margserr
423mdoc_args(struct mdoc *m, int line, int *pos,
424 char *buf, enum mdoct tok, char **v)
425{
a4c7eb57 426 enum argsflag fl;
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427 struct mdoc_node *n;
428
36342e81 429 fl = mdocargs[tok].flags;
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430
431 if (MDOC_It != tok)
432 return(args(m, line, pos, buf, fl, v));
433
434 /*
435 * We know that we're in an `It', so it's reasonable to expect
436 * us to be sitting in a `Bl'. Someday this may not be the case
437 * (if we allow random `It's sitting out there), so provide a
438 * safe fall-back into the default behaviour.
439 */
440
441 for (n = m->last; n; n = n->parent)
442 if (MDOC_Bl == n->tok)
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443 if (LIST_column == n->norm->Bl.type) {
444 fl = ARGSFL_TABSEP;
445 break;
446 }
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447
448 return(args(m, line, pos, buf, fl, v));
449}
450
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451static enum margserr
452args(struct mdoc *m, int line, int *pos,
a4c7eb57 453 char *buf, enum argsflag fl, char **v)
80387638 454{
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455 char *p, *pp;
456 enum margserr rc;
80387638 457
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458 if ('\0' == buf[*pos]) {
459 if (MDOC_PPHRASE & m->flags)
460 return(ARGS_EOLN);
461 /*
462 * If we're not in a partial phrase and the flag for
463 * being a phrase literal is still set, the punctuation
464 * is unterminated.
465 */
466 if (MDOC_PHRASELIT & m->flags)
60e1e752 467 mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
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468
469 m->flags &= ~MDOC_PHRASELIT;
470 return(ARGS_EOLN);
471 }
472
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473 *v = &buf[*pos];
474
a4c7eb57
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475 if (ARGSFL_DELIM == fl)
476 if (args_checkpunct(buf, *pos))
477 return(ARGS_PUNCT);
60e1e752 478
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479 /*
480 * First handle TABSEP items, restricted to `Bl -column'. This
481 * ignores conventional token parsing and instead uses tabs or
482 * `Ta' macros to separate phrases. Phrases are parsed again
483 * for arguments at a later phase.
484 */
485
a4c7eb57 486 if (ARGSFL_TABSEP == fl) {
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487 /* Scan ahead to tab (can't be escaped). */
488 p = strchr(*v, '\t');
489 pp = NULL;
490
491 /* Scan ahead to unescaped `Ta'. */
492 if ( ! (MDOC_PHRASELIT & m->flags))
493 for (pp = *v; ; pp++) {
494 if (NULL == (pp = strstr(pp, "Ta")))
495 break;
496 if (pp > *v && ' ' != *(pp - 1))
497 continue;
498 if (' ' == *(pp + 2) || '\0' == *(pp + 2))
499 break;
500 }
501
502 /* By default, assume a phrase. */
503 rc = ARGS_PHRASE;
504
505 /*
506 * Adjust new-buffer position to be beyond delimiter
507 * mark (e.g., Ta -> end + 2).
508 */
509 if (p && pp) {
510 *pos += pp < p ? 2 : 1;
511 rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
512 p = pp < p ? pp : p;
513 } else if (p && ! pp) {
514 rc = ARGS_PPHRASE;
515 *pos += 1;
516 } else if (pp && ! p) {
517 p = pp;
518 *pos += 2;
519 } else {
520 rc = ARGS_PEND;
521 p = strchr(*v, 0);
522 }
523
524 /* Whitespace check for eoln case... */
a4c7eb57 525 if ('\0' == *p && ' ' == *(p - 1))
60e1e752 526 mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
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527
528 *pos += (int)(p - *v);
529
530 /* Strip delimiter's preceding whitespace. */
531 pp = p - 1;
532 while (pp > *v && ' ' == *pp) {
533 if (pp > *v && '\\' == *(pp - 1))
534 break;
535 pp--;
536 }
537 *(pp + 1) = 0;
538
539 /* Strip delimiter's proceeding whitespace. */
540 for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
541 /* Skip ahead. */ ;
542
543 return(rc);
544 }
545
546 /*
547 * Process a quoted literal. A quote begins with a double-quote
548 * and ends with a double-quote NOT preceded by a double-quote.
549 * Whitespace is NOT involved in literal termination.
550 */
551
552 if (MDOC_PHRASELIT & m->flags || '\"' == buf[*pos]) {
553 if ( ! (MDOC_PHRASELIT & m->flags))
554 *v = &buf[++(*pos)];
555
556 if (MDOC_PPHRASE & m->flags)
557 m->flags |= MDOC_PHRASELIT;
558
559 for ( ; buf[*pos]; (*pos)++) {
560 if ('\"' != buf[*pos])
561 continue;
562 if ('\"' != buf[*pos + 1])
563 break;
564 (*pos)++;
565 }
566
567 if ('\0' == buf[*pos]) {
a4c7eb57 568 if (MDOC_PPHRASE & m->flags)
80387638 569 return(ARGS_QWORD);
60e1e752 570 mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
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571 return(ARGS_QWORD);
572 }
573
574 m->flags &= ~MDOC_PHRASELIT;
575 buf[(*pos)++] = '\0';
576
577 if ('\0' == buf[*pos])
578 return(ARGS_QWORD);
579
580 while (' ' == buf[*pos])
581 (*pos)++;
582
a4c7eb57 583 if ('\0' == buf[*pos])
60e1e752 584 mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
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585
586 return(ARGS_QWORD);
587 }
588
a4c7eb57
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589 p = &buf[*pos];
590 *v = mandoc_getarg(m->parse, &p, line, pos);
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591
592 return(ARGS_WORD);
593}
594
60e1e752
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595/*
596 * Check if the string consists only of space-separated closing
597 * delimiters. This is a bit of a dance: the first must be a close
598 * delimiter, but it may be followed by middle delimiters. Arbitrary
599 * whitespace may separate these tokens.
600 */
601static int
a4c7eb57 602args_checkpunct(const char *buf, int i)
60e1e752
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603{
604 int j;
605 char dbuf[DELIMSZ];
606 enum mdelim d;
607
608 /* First token must be a close-delimiter. */
609
610 for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
611 dbuf[j] = buf[i];
612
613 if (DELIMSZ == j)
614 return(0);
615
616 dbuf[j] = '\0';
617 if (DELIM_CLOSE != mdoc_isdelim(dbuf))
618 return(0);
619
620 while (' ' == buf[i])
621 i++;
622
623 /* Remaining must NOT be open/none. */
624
625 while (buf[i]) {
626 j = 0;
627 while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
628 dbuf[j++] = buf[i++];
629
630 if (DELIMSZ == j)
631 return(0);
632
633 dbuf[j] = '\0';
634 d = mdoc_isdelim(dbuf);
635 if (DELIM_NONE == d || DELIM_OPEN == d)
636 return(0);
637
638 while (' ' == buf[i])
639 i++;
640 }
641
60e1e752
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642 return('\0' == buf[i]);
643}
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645static int
646argv_multi(struct mdoc *m, int line,
647 struct mdoc_argv *v, int *pos, char *buf)
648{
649 enum margserr ac;
650 char *p;
651
652 for (v->sz = 0; ; v->sz++) {
653 if ('-' == buf[*pos])
654 break;
a4c7eb57 655 ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
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656 if (ARGS_ERROR == ac)
657 return(0);
658 else if (ARGS_EOLN == ac)
659 break;
660
661 if (0 == v->sz % MULTI_STEP)
662 v->value = mandoc_realloc(v->value,
663 (v->sz + MULTI_STEP) * sizeof(char *));
664
665 v->value[(int)v->sz] = mandoc_strdup(p);
666 }
667
668 return(1);
669}
670
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671static int
672argv_opt_single(struct mdoc *m, int line,
673 struct mdoc_argv *v, int *pos, char *buf)
674{
675 enum margserr ac;
676 char *p;
677
678 if ('-' == buf[*pos])
679 return(1);
680
a4c7eb57 681 ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
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682 if (ARGS_ERROR == ac)
683 return(0);
684 if (ARGS_EOLN == ac)
685 return(1);
686
687 v->sz = 1;
688 v->value = mandoc_malloc(sizeof(char *));
689 v->value[0] = mandoc_strdup(p);
690
691 return(1);
692}
693
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694static int
695argv_single(struct mdoc *m, int line,
696 struct mdoc_argv *v, int *pos, char *buf)
697{
698 int ppos;
699 enum margserr ac;
700 char *p;
701
702 ppos = *pos;
703
a4c7eb57 704 ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
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705 if (ARGS_EOLN == ac) {
706 mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
707 return(0);
708 } else if (ARGS_ERROR == ac)
709 return(0);
710
711 v->sz = 1;
712 v->value = mandoc_malloc(sizeof(char *));
713 v->value[0] = mandoc_strdup(p);
714
715 return(1);
716}