Annotation of mandoc/mdoc_argv.c, Revision 1.80
1.80 ! kristaps 1: /* $Id: mdoc_argv.c,v 1.79 2011/06/18 16:29:38 kristaps Exp $ */
1.1 kristaps 2: /*
1.56 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.3 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.3 kristaps 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.
1.1 kristaps 16: */
1.33 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <sys/types.h>
22:
23: #include <assert.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
27:
1.72 kristaps 28: #include "mdoc.h"
1.49 kristaps 29: #include "mandoc.h"
1.1 kristaps 30: #include "libmdoc.h"
1.31 kristaps 31: #include "libmandoc.h"
1.1 kristaps 32:
1.68 kristaps 33: #define MULTI_STEP 5 /* pre-allocate argument values */
1.76 kristaps 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: ARGV_OPT_SINGLE /* optional arg (e.g., -offset [xxx]) */
47: };
1.1 kristaps 48:
1.78 kristaps 49: struct mdocarg {
50: enum argsflag flags;
51: const enum mdocargt *argvs;
52: };
53:
1.80 ! kristaps 54: static void argn_free(struct mdoc_arg *, int);
1.39 kristaps 55: static enum margserr args(struct mdoc *, int, int *,
1.76 kristaps 56: char *, enum argsflag, char **);
1.77 kristaps 57: static int args_checkpunct(const char *, int);
1.80 ! kristaps 58: static int argv_multi(struct mdoc *, int,
1.1 kristaps 59: struct mdoc_argv *, int *, char *);
60: static int argv_opt_single(struct mdoc *, int,
61: struct mdoc_argv *, int *, char *);
1.80 ! kristaps 62: static int argv_single(struct mdoc *, int,
1.1 kristaps 63: struct mdoc_argv *, int *, char *);
1.2 kristaps 64:
1.68 kristaps 65: static const enum argvflag argvflags[MDOC_ARG_MAX] = {
1.1 kristaps 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 */
1.29 kristaps 71: ARGV_SINGLE, /* MDOC_File */
1.26 kristaps 72: ARGV_OPT_SINGLE, /* MDOC_Offset */
1.1 kristaps 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 */
84: ARGV_SINGLE, /* MDOC_Width */
85: ARGV_NONE, /* MDOC_Compact */
1.25 kristaps 86: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 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:
1.73 kristaps 94: static const enum mdocargt args_Ex[] = {
95: MDOC_Std,
96: MDOC_ARG_MAX
97: };
98:
99: static const enum mdocargt args_An[] = {
100: MDOC_Split,
101: MDOC_Nosplit,
102: MDOC_ARG_MAX
103: };
104:
105: static 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:
117: static const enum mdocargt args_Bf[] = {
118: MDOC_Emphasis,
119: MDOC_Literal,
120: MDOC_Symbolic,
121: MDOC_ARG_MAX
122: };
123:
124: static const enum mdocargt args_Bk[] = {
125: MDOC_Words,
126: MDOC_ARG_MAX
127: };
128:
129: static 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: };
147:
1.78 kristaps 148: static 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:
1.1 kristaps 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: */
1.40 kristaps 279: enum margverr
1.35 kristaps 280: mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
1.1 kristaps 281: struct mdoc_arg **v, int *pos, char *buf)
282: {
283: char *p, sv;
284: struct mdoc_argv tmp;
285: struct mdoc_arg *arg;
1.78 kristaps 286: const enum mdocargt *ap;
1.1 kristaps 287:
1.52 kristaps 288: if ('\0' == buf[*pos])
1.1 kristaps 289: return(ARGV_EOLN);
1.78 kristaps 290: else if (NULL == (ap = mdocargs[tok].argvs))
291: return(ARGV_WORD);
1.80 ! kristaps 292: else if ('-' != buf[*pos])
! 293: return(ARGV_WORD);
1.1 kristaps 294:
1.78 kristaps 295: /* Seek to the first unescaped space. */
1.1 kristaps 296:
297: p = &buf[++(*pos)];
298:
299: assert(*pos > 0);
300:
1.78 kristaps 301: for ( ; buf[*pos] ; (*pos)++)
302: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
303: break;
1.1 kristaps 304:
1.78 kristaps 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: */
1.1 kristaps 311:
1.78 kristaps 312: if ('\0' != (sv = buf[*pos]))
1.52 kristaps 313: buf[(*pos)++] = '\0';
1.78 kristaps 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: */
1.1 kristaps 319:
1.68 kristaps 320: memset(&tmp, 0, sizeof(struct mdoc_argv));
1.78 kristaps 321:
1.1 kristaps 322: tmp.line = line;
323: tmp.pos = *pos;
1.78 kristaps 324: tmp.arg = MDOC_ARG_MAX;
1.1 kristaps 325:
1.78 kristaps 326: while (MDOC_ARG_MAX != (tmp.arg = *ap++))
327: if (0 == strcmp(p, mdoc_argnames[tmp.arg]))
328: break;
1.1 kristaps 329:
1.78 kristaps 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: */
1.1 kristaps 335: if (sv)
336: buf[*pos - 1] = sv;
337: return(ARGV_WORD);
338: }
339:
1.78 kristaps 340: /* Read to the next word (the argument). */
341:
1.1 kristaps 342: while (buf[*pos] && ' ' == buf[*pos])
343: (*pos)++;
344:
1.79 kristaps 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: }
1.1 kristaps 361:
1.31 kristaps 362: if (NULL == (arg = *v))
1.32 kristaps 363: arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
1.1 kristaps 364:
365: arg->argc++;
1.31 kristaps 366: arg->argv = mandoc_realloc
367: (arg->argv, arg->argc * sizeof(struct mdoc_argv));
1.2 kristaps 368:
1.68 kristaps 369: memcpy(&arg->argv[(int)arg->argc - 1],
1.1 kristaps 370: &tmp, sizeof(struct mdoc_argv));
371:
372: return(ARGV_ARG);
373: }
374:
375: void
376: mdoc_argv_free(struct mdoc_arg *p)
377: {
1.37 kristaps 378: int i;
1.1 kristaps 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:
1.37 kristaps 390: for (i = (int)p->argc - 1; i >= 0; i--)
1.71 kristaps 391: argn_free(p, i);
1.37 kristaps 392:
393: free(p->argv);
394: free(p);
395: }
396:
1.71 kristaps 397: static void
398: argn_free(struct mdoc_arg *p, int iarg)
1.37 kristaps 399: {
1.58 kristaps 400: struct mdoc_argv *arg;
1.37 kristaps 401: int j;
1.58 kristaps 402:
403: arg = &p->argv[iarg];
1.1 kristaps 404:
1.37 kristaps 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);
1.1 kristaps 409: }
410:
1.37 kristaps 411: for (--p->argc; iarg < (int)p->argc; iarg++)
412: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 413: }
414:
1.39 kristaps 415: enum margserr
1.76 kristaps 416: mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
1.19 kristaps 417: {
418:
1.76 kristaps 419: return(args(m, line, pos, buf, ARGSFL_NONE, v));
1.19 kristaps 420: }
421:
1.39 kristaps 422: enum margserr
1.35 kristaps 423: mdoc_args(struct mdoc *m, int line, int *pos,
424: char *buf, enum mdoct tok, char **v)
1.1 kristaps 425: {
1.76 kristaps 426: enum argsflag fl;
1.1 kristaps 427: struct mdoc_node *n;
428:
1.78 kristaps 429: fl = mdocargs[tok].flags;
1.1 kristaps 430:
1.17 kristaps 431: if (MDOC_It != tok)
432: return(args(m, line, pos, buf, fl, v));
433:
1.51 kristaps 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:
1.17 kristaps 441: for (n = m->last; n; n = n->parent)
1.50 kristaps 442: if (MDOC_Bl == n->tok)
1.76 kristaps 443: if (LIST_column == n->norm->Bl.type) {
444: fl = ARGSFL_TABSEP;
445: break;
446: }
1.1 kristaps 447:
1.11 kristaps 448: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 449: }
450:
1.39 kristaps 451: static enum margserr
1.13 kristaps 452: args(struct mdoc *m, int line, int *pos,
1.76 kristaps 453: char *buf, enum argsflag fl, char **v)
1.1 kristaps 454: {
1.52 kristaps 455: char *p, *pp;
456: enum margserr rc;
1.1 kristaps 457:
1.46 kristaps 458: if ('\0' == buf[*pos]) {
1.47 kristaps 459: if (MDOC_PPHRASE & m->flags)
1.46 kristaps 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)
1.67 kristaps 467: mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
1.46 kristaps 468:
469: m->flags &= ~MDOC_PHRASELIT;
1.1 kristaps 470: return(ARGS_EOLN);
1.46 kristaps 471: }
1.1 kristaps 472:
1.64 kristaps 473: *v = &buf[*pos];
1.17 kristaps 474:
1.76 kristaps 475: if (ARGSFL_DELIM == fl)
1.77 kristaps 476: if (args_checkpunct(buf, *pos))
1.76 kristaps 477: return(ARGS_PUNCT);
1.1 kristaps 478:
1.17 kristaps 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: */
1.1 kristaps 485:
1.76 kristaps 486: if (ARGSFL_TABSEP == fl) {
1.20 kristaps 487: /* Scan ahead to tab (can't be escaped). */
1.17 kristaps 488: p = strchr(*v, '\t');
1.46 kristaps 489: pp = NULL;
1.17 kristaps 490:
491: /* Scan ahead to unescaped `Ta'. */
1.46 kristaps 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;
1.51 kristaps 498: if (' ' == *(pp + 2) || '\0' == *(pp + 2))
1.46 kristaps 499: break;
500: }
1.17 kristaps 501:
1.42 kristaps 502: /* By default, assume a phrase. */
503: rc = ARGS_PHRASE;
504:
1.21 kristaps 505: /*
506: * Adjust new-buffer position to be beyond delimiter
507: * mark (e.g., Ta -> end + 2).
508: */
1.20 kristaps 509: if (p && pp) {
510: *pos += pp < p ? 2 : 1;
1.42 kristaps 511: rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
1.20 kristaps 512: p = pp < p ? pp : p;
513: } else if (p && ! pp) {
1.42 kristaps 514: rc = ARGS_PPHRASE;
1.20 kristaps 515: *pos += 1;
516: } else if (pp && ! p) {
1.17 kristaps 517: p = pp;
1.20 kristaps 518: *pos += 2;
1.44 kristaps 519: } else {
520: rc = ARGS_PEND;
1.20 kristaps 521: p = strchr(*v, 0);
1.44 kristaps 522: }
1.20 kristaps 523:
1.21 kristaps 524: /* Whitespace check for eoln case... */
1.76 kristaps 525: if ('\0' == *p && ' ' == *(p - 1))
1.67 kristaps 526: mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
1.20 kristaps 527:
528: *pos += (int)(p - *v);
1.17 kristaps 529:
530: /* Strip delimiter's preceding whitespace. */
1.20 kristaps 531: pp = p - 1;
532: while (pp > *v && ' ' == *pp) {
533: if (pp > *v && '\\' == *(pp - 1))
534: break;
535: pp--;
1.17 kristaps 536: }
1.20 kristaps 537: *(pp + 1) = 0;
1.17 kristaps 538:
1.20 kristaps 539: /* Strip delimiter's proceeding whitespace. */
540: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
541: /* Skip ahead. */ ;
1.1 kristaps 542:
1.41 kristaps 543: return(rc);
1.17 kristaps 544: }
1.1 kristaps 545:
1.17 kristaps 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: */
1.1 kristaps 551:
1.46 kristaps 552: if (MDOC_PHRASELIT & m->flags || '\"' == buf[*pos]) {
553: if ( ! (MDOC_PHRASELIT & m->flags))
554: *v = &buf[++(*pos)];
555:
1.47 kristaps 556: if (MDOC_PPHRASE & m->flags)
1.46 kristaps 557: m->flags |= MDOC_PHRASELIT;
1.1 kristaps 558:
1.17 kristaps 559: for ( ; buf[*pos]; (*pos)++) {
560: if ('\"' != buf[*pos])
561: continue;
562: if ('\"' != buf[*pos + 1])
563: break;
564: (*pos)++;
565: }
1.1 kristaps 566:
1.46 kristaps 567: if ('\0' == buf[*pos]) {
1.76 kristaps 568: if (MDOC_PPHRASE & m->flags)
1.23 kristaps 569: return(ARGS_QWORD);
1.67 kristaps 570: mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
1.18 kristaps 571: return(ARGS_QWORD);
1.17 kristaps 572: }
1.1 kristaps 573:
1.46 kristaps 574: m->flags &= ~MDOC_PHRASELIT;
575: buf[(*pos)++] = '\0';
1.1 kristaps 576:
1.46 kristaps 577: if ('\0' == buf[*pos])
1.17 kristaps 578: return(ARGS_QWORD);
1.1 kristaps 579:
1.17 kristaps 580: while (' ' == buf[*pos])
581: (*pos)++;
1.1 kristaps 582:
1.76 kristaps 583: if ('\0' == buf[*pos])
1.67 kristaps 584: mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
1.1 kristaps 585:
1.17 kristaps 586: return(ARGS_QWORD);
1.1 kristaps 587: }
588:
1.75 kristaps 589: p = &buf[*pos];
1.76 kristaps 590: *v = mandoc_getarg(m->parse, &p, line, pos);
1.1 kristaps 591:
1.17 kristaps 592: return(ARGS_WORD);
1.64 kristaps 593: }
594:
595: /*
596: * Check if the string consists only of space-separated closing
1.65 kristaps 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.
1.64 kristaps 600: */
601: static int
1.77 kristaps 602: args_checkpunct(const char *buf, int i)
1.64 kristaps 603: {
1.69 kristaps 604: int j;
605: char dbuf[DELIMSZ];
1.64 kristaps 606: enum mdelim d;
607:
1.65 kristaps 608: /* First token must be a close-delimiter. */
609:
1.69 kristaps 610: for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
611: dbuf[j] = buf[i];
1.65 kristaps 612:
613: if (DELIMSZ == j)
614: return(0);
615:
1.69 kristaps 616: dbuf[j] = '\0';
1.70 kristaps 617: if (DELIM_CLOSE != mdoc_isdelim(dbuf))
1.64 kristaps 618: return(0);
619:
1.69 kristaps 620: while (' ' == buf[i])
1.65 kristaps 621: i++;
622:
623: /* Remaining must NOT be open/none. */
624:
1.69 kristaps 625: while (buf[i]) {
1.65 kristaps 626: j = 0;
1.69 kristaps 627: while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
628: dbuf[j++] = buf[i++];
1.65 kristaps 629:
630: if (DELIMSZ == j)
631: return(0);
632:
1.69 kristaps 633: dbuf[j] = '\0';
1.70 kristaps 634: d = mdoc_isdelim(dbuf);
1.64 kristaps 635: if (DELIM_NONE == d || DELIM_OPEN == d)
1.65 kristaps 636: return(0);
637:
1.69 kristaps 638: while (' ' == buf[i])
1.64 kristaps 639: i++;
640: }
1.69 kristaps 641:
642: return('\0' == buf[i]);
1.1 kristaps 643: }
644:
645: static int
1.11 kristaps 646: argv_multi(struct mdoc *m, int line,
1.1 kristaps 647: struct mdoc_argv *v, int *pos, char *buf)
648: {
1.43 kristaps 649: enum margserr ac;
1.1 kristaps 650: char *p;
651:
652: for (v->sz = 0; ; v->sz++) {
653: if ('-' == buf[*pos])
654: break;
1.77 kristaps 655: ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
1.43 kristaps 656: if (ARGS_ERROR == ac)
1.1 kristaps 657: return(0);
1.43 kristaps 658: else if (ARGS_EOLN == ac)
1.1 kristaps 659: break;
660:
1.31 kristaps 661: if (0 == v->sz % MULTI_STEP)
662: v->value = mandoc_realloc(v->value,
1.1 kristaps 663: (v->sz + MULTI_STEP) * sizeof(char *));
1.31 kristaps 664:
665: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 666: }
667:
1.7 kristaps 668: return(1);
1.1 kristaps 669: }
670:
671: static int
1.11 kristaps 672: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 673: struct mdoc_argv *v, int *pos, char *buf)
674: {
1.43 kristaps 675: enum margserr ac;
1.1 kristaps 676: char *p;
677:
678: if ('-' == buf[*pos])
679: return(1);
680:
1.77 kristaps 681: ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
1.43 kristaps 682: if (ARGS_ERROR == ac)
1.1 kristaps 683: return(0);
1.43 kristaps 684: if (ARGS_EOLN == ac)
1.1 kristaps 685: return(1);
686:
687: v->sz = 1;
1.31 kristaps 688: v->value = mandoc_malloc(sizeof(char *));
689: v->value[0] = mandoc_strdup(p);
1.2 kristaps 690:
1.1 kristaps 691: return(1);
692: }
693:
694: static int
1.11 kristaps 695: argv_single(struct mdoc *m, int line,
1.1 kristaps 696: struct mdoc_argv *v, int *pos, char *buf)
697: {
1.43 kristaps 698: int ppos;
699: enum margserr ac;
1.1 kristaps 700: char *p;
701:
702: ppos = *pos;
703:
1.77 kristaps 704: ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
1.49 kristaps 705: if (ARGS_EOLN == ac) {
706: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
707: return(0);
708: } else if (ARGS_ERROR == ac)
1.1 kristaps 709: return(0);
710:
711: v->sz = 1;
1.31 kristaps 712: v->value = mandoc_malloc(sizeof(char *));
713: v->value[0] = mandoc_strdup(p);
1.1 kristaps 714:
715: return(1);
716: }
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