Annotation of src/usr.bin/mandoc/mdoc_argv.c, Revision 1.26
1.26 ! schwarze 1: /* $Id: mdoc_argv.c,v 1.25 2010/05/14 14:47:44 schwarze Exp $ */
1.1 kristaps 2: /*
1.2 schwarze 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 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: *
1.2 schwarze 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: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
20: #include <ctype.h>
21: #include <stdlib.h>
22: #include <stdio.h>
23: #include <string.h>
24:
25: #include "libmdoc.h"
1.19 schwarze 26: #include "libmandoc.h"
1.1 kristaps 27:
28: /*
29: * Routines to parse arguments of macros. Arguments follow the syntax
30: * of `-arg [val [valN...]]'. Arguments come in all types: quoted
31: * arguments, multiple arguments per value, no-value arguments, etc.
32: *
33: * There's no limit to the number or arguments that may be allocated.
34: */
35:
36: #define ARGV_NONE (1 << 0)
37: #define ARGV_SINGLE (1 << 1)
38: #define ARGV_MULTI (1 << 2)
39: #define ARGV_OPT_SINGLE (1 << 3)
40:
41: #define MULTI_STEP 5
42:
1.22 schwarze 43: static int argv_a2arg(enum mdoct, const char *);
1.24 schwarze 44: static enum margserr args(struct mdoc *, int, int *,
1.1 kristaps 45: char *, int, char **);
46: static int argv(struct mdoc *, int,
47: struct mdoc_argv *, int *, char *);
48: static int argv_single(struct mdoc *, int,
49: struct mdoc_argv *, int *, char *);
50: static int argv_opt_single(struct mdoc *, int,
51: struct mdoc_argv *, int *, char *);
52: static int argv_multi(struct mdoc *, int,
53: struct mdoc_argv *, int *, char *);
54:
55: /* Per-argument flags. */
56:
57: static int mdoc_argvflags[MDOC_ARG_MAX] = {
58: ARGV_NONE, /* MDOC_Split */
59: ARGV_NONE, /* MDOC_Nosplit */
60: ARGV_NONE, /* MDOC_Ragged */
61: ARGV_NONE, /* MDOC_Unfilled */
62: ARGV_NONE, /* MDOC_Literal */
1.17 schwarze 63: ARGV_SINGLE, /* MDOC_File */
1.15 schwarze 64: ARGV_OPT_SINGLE, /* MDOC_Offset */
1.1 kristaps 65: ARGV_NONE, /* MDOC_Bullet */
66: ARGV_NONE, /* MDOC_Dash */
67: ARGV_NONE, /* MDOC_Hyphen */
68: ARGV_NONE, /* MDOC_Item */
69: ARGV_NONE, /* MDOC_Enum */
70: ARGV_NONE, /* MDOC_Tag */
71: ARGV_NONE, /* MDOC_Diag */
72: ARGV_NONE, /* MDOC_Hang */
73: ARGV_NONE, /* MDOC_Ohang */
74: ARGV_NONE, /* MDOC_Inset */
75: ARGV_MULTI, /* MDOC_Column */
76: ARGV_SINGLE, /* MDOC_Width */
77: ARGV_NONE, /* MDOC_Compact */
1.14 schwarze 78: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 79: ARGV_NONE, /* MDOC_Filled */
80: ARGV_NONE, /* MDOC_Words */
81: ARGV_NONE, /* MDOC_Emphasis */
82: ARGV_NONE, /* MDOC_Symbolic */
83: ARGV_NONE /* MDOC_Symbolic */
84: };
85:
86: static int mdoc_argflags[MDOC_MAX] = {
1.3 schwarze 87: 0, /* Ap */
1.1 kristaps 88: 0, /* Dd */
89: 0, /* Dt */
90: 0, /* Os */
1.12 schwarze 91: 0, /* Sh */
92: 0, /* Ss */
1.1 kristaps 93: ARGS_DELIM, /* Pp */
94: ARGS_DELIM, /* D1 */
1.12 schwarze 95: ARGS_DELIM, /* Dl */
1.1 kristaps 96: 0, /* Bd */
97: 0, /* Ed */
1.12 schwarze 98: 0, /* Bl */
1.1 kristaps 99: 0, /* El */
100: 0, /* It */
101: ARGS_DELIM, /* Ad */
102: ARGS_DELIM, /* An */
1.12 schwarze 103: ARGS_DELIM, /* Ar */
104: 0, /* Cd */
1.1 kristaps 105: ARGS_DELIM, /* Cm */
106: ARGS_DELIM, /* Dv */
107: ARGS_DELIM, /* Er */
108: ARGS_DELIM, /* Ev */
109: 0, /* Ex */
1.12 schwarze 110: ARGS_DELIM, /* Fa */
1.1 kristaps 111: 0, /* Fd */
112: ARGS_DELIM, /* Fl */
1.12 schwarze 113: ARGS_DELIM, /* Fn */
114: ARGS_DELIM, /* Ft */
1.1 kristaps 115: ARGS_DELIM, /* Ic */
116: 0, /* In */
1.12 schwarze 117: ARGS_DELIM, /* Li */
118: 0, /* Nd */
1.1 kristaps 119: ARGS_DELIM, /* Nm */
120: ARGS_DELIM, /* Op */
121: 0, /* Ot */
122: ARGS_DELIM, /* Pa */
123: 0, /* Rv */
1.12 schwarze 124: ARGS_DELIM, /* St */
1.1 kristaps 125: ARGS_DELIM, /* Va */
126: ARGS_DELIM, /* Vt */
127: ARGS_DELIM, /* Xr */
1.12 schwarze 128: 0, /* %A */
129: 0, /* %B */
130: 0, /* %D */
131: 0, /* %I */
132: 0, /* %J */
133: 0, /* %N */
134: 0, /* %O */
135: 0, /* %P */
136: 0, /* %R */
137: 0, /* %T */
138: 0, /* %V */
1.1 kristaps 139: ARGS_DELIM, /* Ac */
140: 0, /* Ao */
141: ARGS_DELIM, /* Aq */
142: ARGS_DELIM, /* At */
143: ARGS_DELIM, /* Bc */
144: 0, /* Bf */
145: 0, /* Bo */
146: ARGS_DELIM, /* Bq */
147: ARGS_DELIM, /* Bsx */
148: ARGS_DELIM, /* Bx */
149: 0, /* Db */
150: ARGS_DELIM, /* Dc */
151: 0, /* Do */
152: ARGS_DELIM, /* Dq */
153: ARGS_DELIM, /* Ec */
154: 0, /* Ef */
155: ARGS_DELIM, /* Em */
156: 0, /* Eo */
157: ARGS_DELIM, /* Fx */
158: ARGS_DELIM, /* Ms */
159: ARGS_DELIM, /* No */
160: ARGS_DELIM, /* Ns */
161: ARGS_DELIM, /* Nx */
162: ARGS_DELIM, /* Ox */
163: ARGS_DELIM, /* Pc */
164: ARGS_DELIM, /* Pf */
165: 0, /* Po */
166: ARGS_DELIM, /* Pq */
167: ARGS_DELIM, /* Qc */
168: ARGS_DELIM, /* Ql */
169: 0, /* Qo */
170: ARGS_DELIM, /* Qq */
171: 0, /* Re */
172: 0, /* Rs */
173: ARGS_DELIM, /* Sc */
174: 0, /* So */
175: ARGS_DELIM, /* Sq */
176: 0, /* Sm */
177: ARGS_DELIM, /* Sx */
1.12 schwarze 178: ARGS_DELIM, /* Sy */
1.1 kristaps 179: ARGS_DELIM, /* Tn */
180: ARGS_DELIM, /* Ux */
181: ARGS_DELIM, /* Xc */
182: 0, /* Xo */
1.12 schwarze 183: 0, /* Fo */
1.1 kristaps 184: 0, /* Fc */
185: 0, /* Oo */
186: ARGS_DELIM, /* Oc */
187: 0, /* Bk */
188: 0, /* Ek */
189: 0, /* Bt */
190: 0, /* Hf */
191: 0, /* Fr */
192: 0, /* Ud */
193: 0, /* Lb */
194: ARGS_DELIM, /* Lp */
1.12 schwarze 195: ARGS_DELIM, /* Lk */
196: ARGS_DELIM, /* Mt */
1.1 kristaps 197: ARGS_DELIM, /* Brq */
198: 0, /* Bro */
199: ARGS_DELIM, /* Brc */
1.12 schwarze 200: 0, /* %C */
1.1 kristaps 201: 0, /* Es */
202: 0, /* En */
203: 0, /* Dx */
1.12 schwarze 204: 0, /* %Q */
1.10 schwarze 205: 0, /* br */
206: 0, /* sp */
1.18 schwarze 207: 0, /* %U */
1.1 kristaps 208: };
209:
210:
211: /*
212: * Parse an argument from line text. This comes in the form of -key
213: * [value0...], which may either have a single mandatory value, at least
214: * one mandatory value, an optional single value, or no value.
215: */
1.24 schwarze 216: enum margverr
1.22 schwarze 217: mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
1.1 kristaps 218: struct mdoc_arg **v, int *pos, char *buf)
219: {
220: char *p, sv;
221: struct mdoc_argv tmp;
222: struct mdoc_arg *arg;
223:
224: if (0 == buf[*pos])
225: return(ARGV_EOLN);
226:
227: assert(' ' != buf[*pos]);
228:
229: /* Parse through to the first unescaped space. */
230:
231: p = &buf[++(*pos)];
232:
233: assert(*pos > 0);
234:
235: /* LINTED */
236: while (buf[*pos]) {
237: if (' ' == buf[*pos])
238: if ('\\' != buf[*pos - 1])
239: break;
240: (*pos)++;
241: }
242:
243: /* XXX - save zeroed byte, if not an argument. */
244:
245: sv = 0;
246: if (buf[*pos]) {
247: sv = buf[*pos];
248: buf[(*pos)++] = 0;
249: }
250:
251: (void)memset(&tmp, 0, sizeof(struct mdoc_argv));
252: tmp.line = line;
253: tmp.pos = *pos;
254:
255: /* See if our token accepts the argument. */
256:
257: if (MDOC_ARG_MAX == (tmp.arg = argv_a2arg(tok, p))) {
258: /* XXX - restore saved zeroed byte. */
259: if (sv)
260: buf[*pos - 1] = sv;
261: return(ARGV_WORD);
262: }
263:
264: while (buf[*pos] && ' ' == buf[*pos])
265: (*pos)++;
266:
1.6 schwarze 267: if ( ! argv(m, line, &tmp, pos, buf))
1.1 kristaps 268: return(ARGV_ERROR);
269:
1.19 schwarze 270: if (NULL == (arg = *v))
271: arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
1.1 kristaps 272:
273: arg->argc++;
1.19 schwarze 274: arg->argv = mandoc_realloc
275: (arg->argv, arg->argc * sizeof(struct mdoc_argv));
1.1 kristaps 276:
277: (void)memcpy(&arg->argv[(int)arg->argc - 1],
278: &tmp, sizeof(struct mdoc_argv));
279:
280: return(ARGV_ARG);
281: }
282:
283:
284: void
285: mdoc_argv_free(struct mdoc_arg *p)
286: {
1.23 schwarze 287: int i;
1.1 kristaps 288:
289: if (NULL == p)
290: return;
291:
292: if (p->refcnt) {
293: --(p->refcnt);
294: if (p->refcnt)
295: return;
296: }
297: assert(p->argc);
298:
1.24 schwarze 299: for (i = (int)p->argc - 1; i >= 0; i--)
1.23 schwarze 300: mdoc_argn_free(p, i);
301:
302: free(p->argv);
303: free(p);
304: }
305:
306:
307: void
308: mdoc_argn_free(struct mdoc_arg *p, int iarg)
309: {
310: struct mdoc_argv *arg = &p->argv[iarg];
311: int j;
1.1 kristaps 312:
1.23 schwarze 313: if (arg->sz && arg->value) {
1.24 schwarze 314: for (j = (int)arg->sz - 1; j >= 0; j--)
1.23 schwarze 315: free(arg->value[j]);
316: free(arg->value);
1.1 kristaps 317: }
318:
1.23 schwarze 319: for (--p->argc; iarg < (int)p->argc; iarg++)
320: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 321: }
322:
323:
1.24 schwarze 324: enum margserr
1.13 schwarze 325: mdoc_zargs(struct mdoc *m, int line, int *pos,
326: char *buf, int flags, char **v)
1.12 schwarze 327: {
328:
1.13 schwarze 329: return(args(m, line, pos, buf, flags, v));
1.12 schwarze 330: }
331:
332:
1.24 schwarze 333: enum margserr
1.22 schwarze 334: mdoc_args(struct mdoc *m, int line, int *pos,
335: char *buf, enum mdoct tok, char **v)
1.1 kristaps 336: {
337: int fl, c, i;
338: struct mdoc_node *n;
339:
1.22 schwarze 340: fl = mdoc_argflags[tok];
1.1 kristaps 341:
1.12 schwarze 342: if (MDOC_It != tok)
343: return(args(m, line, pos, buf, fl, v));
344:
1.1 kristaps 345: /*
1.12 schwarze 346: * The `It' macro is a special case, as it acquires parameters from its
347: * parent `Bl' context, specifically, we're concerned with -column.
1.1 kristaps 348: */
349:
1.12 schwarze 350: for (n = m->last; n; n = n->parent)
351: if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok)
352: break;
1.1 kristaps 353:
1.12 schwarze 354: assert(n);
355: c = (int)(n->args ? n->args->argc : 0);
356: assert(c > 0);
1.1 kristaps 357:
1.12 schwarze 358: /* LINTED */
359: for (i = 0; i < c; i++) {
360: if (MDOC_Column != n->args->argv[i].arg)
361: continue;
362: fl |= ARGS_TABSEP;
363: fl &= ~ARGS_DELIM;
1.1 kristaps 364: break;
365: }
366:
1.8 schwarze 367: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 368: }
369:
370:
1.24 schwarze 371: static enum margserr
1.12 schwarze 372: args(struct mdoc *m, int line, int *pos,
1.11 schwarze 373: char *buf, int fl, char **v)
1.1 kristaps 374: {
375: int i;
376: char *p, *pp;
1.24 schwarze 377: enum margserr rc;
1.1 kristaps 378:
1.13 schwarze 379: /*
380: * Parse out the terms (like `val' in `.Xx -arg val' or simply
381: * `.Xx val'), which can have all sorts of properties:
382: *
383: * ARGS_DELIM: use special handling if encountering trailing
384: * delimiters in the form of [[::delim::][ ]+]+.
385: *
386: * ARGS_NOWARN: don't post warnings. This is only used when
387: * re-parsing delimiters, as the warnings have already been
388: * posted.
389: *
390: * ARGS_TABSEP: use special handling for tab/`Ta' separated
391: * phrases like in `Bl -column'.
392: */
393:
1.12 schwarze 394: assert(*pos);
395: assert(' ' != buf[*pos]);
1.1 kristaps 396:
1.24 schwarze 397: if ('\0' == buf[*pos])
1.1 kristaps 398: return(ARGS_EOLN);
399:
400: /*
1.25 schwarze 401: * If the first character is a closing delimiter and we're to
402: * look for delimited strings, then pass down the buffer seeing
403: * if it follows the pattern of [[::delim::][ ]+]+. Note that
404: * we ONLY care about closing delimiters.
1.1 kristaps 405: */
406:
1.20 schwarze 407: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos]) > 1) {
1.1 kristaps 408: for (i = *pos; buf[i]; ) {
1.20 schwarze 409: if ( mdoc_iscdelim(buf[i]) < 2)
1.1 kristaps 410: break;
411: i++;
1.25 schwarze 412: if ('\0' == buf[i] || ' ' != buf[i])
1.1 kristaps 413: break;
414: i++;
415: while (buf[i] && ' ' == buf[i])
416: i++;
417: }
1.12 schwarze 418:
1.25 schwarze 419: if ('\0' == buf[i]) {
1.1 kristaps 420: *v = &buf[*pos];
1.13 schwarze 421: if (' ' != buf[i - 1])
422: return(ARGS_PUNCT);
423: if (ARGS_NOWARN & fl)
424: return(ARGS_PUNCT);
425: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
426: return(ARGS_ERROR);
1.1 kristaps 427: return(ARGS_PUNCT);
428: }
429: }
430:
1.12 schwarze 431: *v = &buf[*pos];
1.1 kristaps 432:
1.12 schwarze 433: /*
434: * First handle TABSEP items, restricted to `Bl -column'. This
435: * ignores conventional token parsing and instead uses tabs or
436: * `Ta' macros to separate phrases. Phrases are parsed again
437: * for arguments at a later phase.
438: */
439:
440: if (ARGS_TABSEP & fl) {
441: /* Scan ahead to tab (can't be escaped). */
442: p = strchr(*v, '\t');
443:
444: /* Scan ahead to unescaped `Ta'. */
445: for (pp = *v; ; pp++) {
446: if (NULL == (pp = strstr(pp, "Ta")))
447: break;
448: if (pp > *v && ' ' != *(pp - 1))
449: continue;
450: if (' ' == *(pp + 2) || 0 == *(pp + 2))
451: break;
452: }
1.1 kristaps 453:
1.24 schwarze 454: /* By default, assume a phrase. */
455: rc = ARGS_PHRASE;
456:
1.1 kristaps 457: /*
1.12 schwarze 458: * Adjust new-buffer position to be beyond delimiter
459: * mark (e.g., Ta -> end + 2).
1.1 kristaps 460: */
1.12 schwarze 461: if (p && pp) {
462: *pos += pp < p ? 2 : 1;
1.24 schwarze 463: rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
1.12 schwarze 464: p = pp < p ? pp : p;
465: } else if (p && ! pp) {
1.24 schwarze 466: rc = ARGS_PPHRASE;
1.12 schwarze 467: *pos += 1;
468: } else if (pp && ! p) {
469: p = pp;
470: *pos += 2;
1.25 schwarze 471: } else {
472: rc = ARGS_PEND;
1.12 schwarze 473: p = strchr(*v, 0);
1.25 schwarze 474: }
1.1 kristaps 475:
1.12 schwarze 476: /* Whitespace check for eoln case... */
1.13 schwarze 477: if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
1.12 schwarze 478: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
479: return(ARGS_ERROR);
480:
481: *pos += (int)(p - *v);
482:
483: /* Strip delimiter's preceding whitespace. */
484: pp = p - 1;
485: while (pp > *v && ' ' == *pp) {
486: if (pp > *v && '\\' == *(pp - 1))
487: break;
488: pp--;
489: }
490: *(pp + 1) = 0;
1.1 kristaps 491:
1.12 schwarze 492: /* Strip delimiter's proceeding whitespace. */
493: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
494: /* Skip ahead. */ ;
1.1 kristaps 495:
1.24 schwarze 496: return(rc);
1.12 schwarze 497: }
1.1 kristaps 498:
1.12 schwarze 499: /*
500: * Process a quoted literal. A quote begins with a double-quote
501: * and ends with a double-quote NOT preceded by a double-quote.
502: * Whitespace is NOT involved in literal termination.
503: */
1.1 kristaps 504:
1.12 schwarze 505: if ('\"' == buf[*pos]) {
506: *v = &buf[++(*pos)];
1.1 kristaps 507:
1.12 schwarze 508: for ( ; buf[*pos]; (*pos)++) {
509: if ('\"' != buf[*pos])
510: continue;
511: if ('\"' != buf[*pos + 1])
512: break;
513: (*pos)++;
514: }
1.1 kristaps 515:
1.12 schwarze 516: if (0 == buf[*pos]) {
1.13 schwarze 517: if (ARGS_NOWARN & fl)
518: return(ARGS_QWORD);
1.12 schwarze 519: if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
520: return(ARGS_ERROR);
521: return(ARGS_QWORD);
522: }
1.1 kristaps 523:
1.12 schwarze 524: buf[(*pos)++] = 0;
1.1 kristaps 525:
526: if (0 == buf[*pos])
1.12 schwarze 527: return(ARGS_QWORD);
1.1 kristaps 528:
1.12 schwarze 529: while (' ' == buf[*pos])
530: (*pos)++;
1.1 kristaps 531:
1.13 schwarze 532: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.12 schwarze 533: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
534: return(ARGS_ERROR);
1.1 kristaps 535:
1.12 schwarze 536: return(ARGS_QWORD);
1.1 kristaps 537: }
538:
1.12 schwarze 539: /*
540: * A non-quoted term progresses until either the end of line or
541: * a non-escaped whitespace.
1.1 kristaps 542: */
543:
1.12 schwarze 544: for ( ; buf[*pos]; (*pos)++)
545: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
546: break;
1.1 kristaps 547:
1.12 schwarze 548: if (0 == buf[*pos])
549: return(ARGS_WORD);
1.1 kristaps 550:
551: buf[(*pos)++] = 0;
552:
1.12 schwarze 553: while (' ' == buf[*pos])
1.1 kristaps 554: (*pos)++;
555:
1.13 schwarze 556: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.12 schwarze 557: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
558: return(ARGS_ERROR);
1.1 kristaps 559:
1.12 schwarze 560: return(ARGS_WORD);
1.1 kristaps 561: }
562:
563:
564: static int
1.22 schwarze 565: argv_a2arg(enum mdoct tok, const char *p)
1.1 kristaps 566: {
567:
568: /*
569: * Parse an argument identifier from its text. XXX - this
570: * should really be table-driven to clarify the code.
571: *
572: * If you add an argument to the list, make sure that you
573: * register it here with its one or more macros!
574: */
575:
576: switch (tok) {
577: case (MDOC_An):
1.16 schwarze 578: if (0 == strcmp(p, "split"))
1.1 kristaps 579: return(MDOC_Split);
1.16 schwarze 580: else if (0 == strcmp(p, "nosplit"))
1.1 kristaps 581: return(MDOC_Nosplit);
582: break;
583:
584: case (MDOC_Bd):
1.16 schwarze 585: if (0 == strcmp(p, "ragged"))
1.1 kristaps 586: return(MDOC_Ragged);
1.16 schwarze 587: else if (0 == strcmp(p, "unfilled"))
1.1 kristaps 588: return(MDOC_Unfilled);
1.16 schwarze 589: else if (0 == strcmp(p, "filled"))
1.1 kristaps 590: return(MDOC_Filled);
1.16 schwarze 591: else if (0 == strcmp(p, "literal"))
1.1 kristaps 592: return(MDOC_Literal);
1.16 schwarze 593: else if (0 == strcmp(p, "file"))
1.1 kristaps 594: return(MDOC_File);
1.16 schwarze 595: else if (0 == strcmp(p, "offset"))
1.1 kristaps 596: return(MDOC_Offset);
1.16 schwarze 597: else if (0 == strcmp(p, "compact"))
1.1 kristaps 598: return(MDOC_Compact);
1.17 schwarze 599: else if (0 == strcmp(p, "centered"))
600: return(MDOC_Centred);
1.1 kristaps 601: break;
602:
603: case (MDOC_Bf):
1.16 schwarze 604: if (0 == strcmp(p, "emphasis"))
1.1 kristaps 605: return(MDOC_Emphasis);
1.16 schwarze 606: else if (0 == strcmp(p, "literal"))
1.1 kristaps 607: return(MDOC_Literal);
1.16 schwarze 608: else if (0 == strcmp(p, "symbolic"))
1.1 kristaps 609: return(MDOC_Symbolic);
610: break;
611:
612: case (MDOC_Bk):
1.16 schwarze 613: if (0 == strcmp(p, "words"))
1.1 kristaps 614: return(MDOC_Words);
615: break;
616:
617: case (MDOC_Bl):
1.16 schwarze 618: if (0 == strcmp(p, "bullet"))
1.1 kristaps 619: return(MDOC_Bullet);
1.16 schwarze 620: else if (0 == strcmp(p, "dash"))
1.1 kristaps 621: return(MDOC_Dash);
1.16 schwarze 622: else if (0 == strcmp(p, "hyphen"))
1.1 kristaps 623: return(MDOC_Hyphen);
1.16 schwarze 624: else if (0 == strcmp(p, "item"))
1.1 kristaps 625: return(MDOC_Item);
1.16 schwarze 626: else if (0 == strcmp(p, "enum"))
1.1 kristaps 627: return(MDOC_Enum);
1.16 schwarze 628: else if (0 == strcmp(p, "tag"))
1.1 kristaps 629: return(MDOC_Tag);
1.16 schwarze 630: else if (0 == strcmp(p, "diag"))
1.1 kristaps 631: return(MDOC_Diag);
1.16 schwarze 632: else if (0 == strcmp(p, "hang"))
1.1 kristaps 633: return(MDOC_Hang);
1.16 schwarze 634: else if (0 == strcmp(p, "ohang"))
1.1 kristaps 635: return(MDOC_Ohang);
1.16 schwarze 636: else if (0 == strcmp(p, "inset"))
1.1 kristaps 637: return(MDOC_Inset);
1.16 schwarze 638: else if (0 == strcmp(p, "column"))
1.1 kristaps 639: return(MDOC_Column);
1.16 schwarze 640: else if (0 == strcmp(p, "width"))
1.1 kristaps 641: return(MDOC_Width);
1.16 schwarze 642: else if (0 == strcmp(p, "offset"))
1.1 kristaps 643: return(MDOC_Offset);
1.16 schwarze 644: else if (0 == strcmp(p, "compact"))
1.1 kristaps 645: return(MDOC_Compact);
1.16 schwarze 646: else if (0 == strcmp(p, "nested"))
1.1 kristaps 647: return(MDOC_Nested);
648: break;
649:
650: case (MDOC_Rv):
651: /* FALLTHROUGH */
652: case (MDOC_Ex):
1.16 schwarze 653: if (0 == strcmp(p, "std"))
1.1 kristaps 654: return(MDOC_Std);
655: break;
656: default:
657: break;
658: }
659:
660: return(MDOC_ARG_MAX);
661: }
662:
663:
664: static int
1.6 schwarze 665: argv_multi(struct mdoc *m, int line,
1.1 kristaps 666: struct mdoc_argv *v, int *pos, char *buf)
667: {
1.24 schwarze 668: enum margserr ac;
1.1 kristaps 669: char *p;
670:
671: for (v->sz = 0; ; v->sz++) {
672: if ('-' == buf[*pos])
673: break;
1.24 schwarze 674: ac = args(m, line, pos, buf, 0, &p);
675: if (ARGS_ERROR == ac)
1.1 kristaps 676: return(0);
1.24 schwarze 677: else if (ARGS_EOLN == ac)
1.1 kristaps 678: break;
679:
1.19 schwarze 680: if (0 == v->sz % MULTI_STEP)
681: v->value = mandoc_realloc(v->value,
1.1 kristaps 682: (v->sz + MULTI_STEP) * sizeof(char *));
1.19 schwarze 683:
684: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 685: }
686:
1.4 schwarze 687: return(1);
1.1 kristaps 688: }
689:
690:
691: static int
1.6 schwarze 692: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 693: struct mdoc_argv *v, int *pos, char *buf)
694: {
1.24 schwarze 695: enum margserr ac;
1.1 kristaps 696: char *p;
697:
698: if ('-' == buf[*pos])
699: return(1);
700:
1.24 schwarze 701: ac = args(m, line, pos, buf, 0, &p);
702: if (ARGS_ERROR == ac)
1.1 kristaps 703: return(0);
1.24 schwarze 704: if (ARGS_EOLN == ac)
1.1 kristaps 705: return(1);
706:
707: v->sz = 1;
1.19 schwarze 708: v->value = mandoc_malloc(sizeof(char *));
709: v->value[0] = mandoc_strdup(p);
1.1 kristaps 710:
711: return(1);
712: }
713:
714:
715: /*
716: * Parse a single, mandatory value from the stream.
717: */
718: static int
1.6 schwarze 719: argv_single(struct mdoc *m, int line,
1.1 kristaps 720: struct mdoc_argv *v, int *pos, char *buf)
721: {
1.24 schwarze 722: int ppos;
723: enum margserr ac;
1.1 kristaps 724: char *p;
725:
726: ppos = *pos;
727:
1.24 schwarze 728: ac = args(m, line, pos, buf, 0, &p);
729: if (ARGS_ERROR == ac)
1.1 kristaps 730: return(0);
1.24 schwarze 731: if (ARGS_EOLN == ac)
1.7 schwarze 732: return(mdoc_perr(m, line, ppos, EARGVAL));
1.1 kristaps 733:
734: v->sz = 1;
1.19 schwarze 735: v->value = mandoc_malloc(sizeof(char *));
736: v->value[0] = mandoc_strdup(p);
1.1 kristaps 737:
738: return(1);
739: }
740:
741:
742: /*
743: * Determine rules for parsing arguments. Arguments can either accept
744: * no parameters, an optional single parameter, one parameter, or
745: * multiple parameters.
746: */
747: static int
748: argv(struct mdoc *mdoc, int line,
749: struct mdoc_argv *v, int *pos, char *buf)
750: {
751:
752: v->sz = 0;
753: v->value = NULL;
754:
755: switch (mdoc_argvflags[v->arg]) {
756: case (ARGV_SINGLE):
757: return(argv_single(mdoc, line, v, pos, buf));
758: case (ARGV_MULTI):
759: return(argv_multi(mdoc, line, v, pos, buf));
760: case (ARGV_OPT_SINGLE):
761: return(argv_opt_single(mdoc, line, v, pos, buf));
762: default:
763: /* ARGV_NONE */
764: break;
765: }
766:
767: return(1);
768: }