Annotation of src/usr.bin/mandoc/mdoc_argv.c, Revision 1.27
1.27 ! schwarze 1: /* $Id: mdoc_argv.c,v 1.26 2010/05/14 19:52:43 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:
1.27 ! schwarze 407: if ((fl & ARGS_DELIM) && DELIM_CLOSE == mdoc_iscdelim(buf[*pos])) {
1.1 kristaps 408: for (i = *pos; buf[i]; ) {
1.27 ! schwarze 409: enum mdelim d = mdoc_iscdelim(buf[i]);
! 410: if (DELIM_NONE == d || DELIM_OPEN == d)
1.1 kristaps 411: break;
412: i++;
1.25 schwarze 413: if ('\0' == buf[i] || ' ' != buf[i])
1.1 kristaps 414: break;
415: i++;
416: while (buf[i] && ' ' == buf[i])
417: i++;
418: }
1.12 schwarze 419:
1.25 schwarze 420: if ('\0' == buf[i]) {
1.1 kristaps 421: *v = &buf[*pos];
1.13 schwarze 422: if (' ' != buf[i - 1])
423: return(ARGS_PUNCT);
424: if (ARGS_NOWARN & fl)
425: return(ARGS_PUNCT);
426: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
427: return(ARGS_ERROR);
1.1 kristaps 428: return(ARGS_PUNCT);
429: }
430: }
431:
1.12 schwarze 432: *v = &buf[*pos];
1.1 kristaps 433:
1.12 schwarze 434: /*
435: * First handle TABSEP items, restricted to `Bl -column'. This
436: * ignores conventional token parsing and instead uses tabs or
437: * `Ta' macros to separate phrases. Phrases are parsed again
438: * for arguments at a later phase.
439: */
440:
441: if (ARGS_TABSEP & fl) {
442: /* Scan ahead to tab (can't be escaped). */
443: p = strchr(*v, '\t');
444:
445: /* Scan ahead to unescaped `Ta'. */
446: for (pp = *v; ; pp++) {
447: if (NULL == (pp = strstr(pp, "Ta")))
448: break;
449: if (pp > *v && ' ' != *(pp - 1))
450: continue;
451: if (' ' == *(pp + 2) || 0 == *(pp + 2))
452: break;
453: }
1.1 kristaps 454:
1.24 schwarze 455: /* By default, assume a phrase. */
456: rc = ARGS_PHRASE;
457:
1.1 kristaps 458: /*
1.12 schwarze 459: * Adjust new-buffer position to be beyond delimiter
460: * mark (e.g., Ta -> end + 2).
1.1 kristaps 461: */
1.12 schwarze 462: if (p && pp) {
463: *pos += pp < p ? 2 : 1;
1.24 schwarze 464: rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
1.12 schwarze 465: p = pp < p ? pp : p;
466: } else if (p && ! pp) {
1.24 schwarze 467: rc = ARGS_PPHRASE;
1.12 schwarze 468: *pos += 1;
469: } else if (pp && ! p) {
470: p = pp;
471: *pos += 2;
1.25 schwarze 472: } else {
473: rc = ARGS_PEND;
1.12 schwarze 474: p = strchr(*v, 0);
1.25 schwarze 475: }
1.1 kristaps 476:
1.12 schwarze 477: /* Whitespace check for eoln case... */
1.13 schwarze 478: if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
1.12 schwarze 479: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
480: return(ARGS_ERROR);
481:
482: *pos += (int)(p - *v);
483:
484: /* Strip delimiter's preceding whitespace. */
485: pp = p - 1;
486: while (pp > *v && ' ' == *pp) {
487: if (pp > *v && '\\' == *(pp - 1))
488: break;
489: pp--;
490: }
491: *(pp + 1) = 0;
1.1 kristaps 492:
1.12 schwarze 493: /* Strip delimiter's proceeding whitespace. */
494: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
495: /* Skip ahead. */ ;
1.1 kristaps 496:
1.24 schwarze 497: return(rc);
1.12 schwarze 498: }
1.1 kristaps 499:
1.12 schwarze 500: /*
501: * Process a quoted literal. A quote begins with a double-quote
502: * and ends with a double-quote NOT preceded by a double-quote.
503: * Whitespace is NOT involved in literal termination.
504: */
1.1 kristaps 505:
1.12 schwarze 506: if ('\"' == buf[*pos]) {
507: *v = &buf[++(*pos)];
1.1 kristaps 508:
1.12 schwarze 509: for ( ; buf[*pos]; (*pos)++) {
510: if ('\"' != buf[*pos])
511: continue;
512: if ('\"' != buf[*pos + 1])
513: break;
514: (*pos)++;
515: }
1.1 kristaps 516:
1.12 schwarze 517: if (0 == buf[*pos]) {
1.13 schwarze 518: if (ARGS_NOWARN & fl)
519: return(ARGS_QWORD);
1.12 schwarze 520: if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
521: return(ARGS_ERROR);
522: return(ARGS_QWORD);
523: }
1.1 kristaps 524:
1.12 schwarze 525: buf[(*pos)++] = 0;
1.1 kristaps 526:
527: if (0 == buf[*pos])
1.12 schwarze 528: return(ARGS_QWORD);
1.1 kristaps 529:
1.12 schwarze 530: while (' ' == buf[*pos])
531: (*pos)++;
1.1 kristaps 532:
1.13 schwarze 533: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.12 schwarze 534: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
535: return(ARGS_ERROR);
1.1 kristaps 536:
1.12 schwarze 537: return(ARGS_QWORD);
1.1 kristaps 538: }
539:
1.12 schwarze 540: /*
541: * A non-quoted term progresses until either the end of line or
542: * a non-escaped whitespace.
1.1 kristaps 543: */
544:
1.12 schwarze 545: for ( ; buf[*pos]; (*pos)++)
546: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
547: break;
1.1 kristaps 548:
1.12 schwarze 549: if (0 == buf[*pos])
550: return(ARGS_WORD);
1.1 kristaps 551:
552: buf[(*pos)++] = 0;
553:
1.12 schwarze 554: while (' ' == buf[*pos])
1.1 kristaps 555: (*pos)++;
556:
1.13 schwarze 557: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.12 schwarze 558: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
559: return(ARGS_ERROR);
1.1 kristaps 560:
1.12 schwarze 561: return(ARGS_WORD);
1.1 kristaps 562: }
563:
564:
565: static int
1.22 schwarze 566: argv_a2arg(enum mdoct tok, const char *p)
1.1 kristaps 567: {
568:
569: /*
570: * Parse an argument identifier from its text. XXX - this
571: * should really be table-driven to clarify the code.
572: *
573: * If you add an argument to the list, make sure that you
574: * register it here with its one or more macros!
575: */
576:
577: switch (tok) {
578: case (MDOC_An):
1.16 schwarze 579: if (0 == strcmp(p, "split"))
1.1 kristaps 580: return(MDOC_Split);
1.16 schwarze 581: else if (0 == strcmp(p, "nosplit"))
1.1 kristaps 582: return(MDOC_Nosplit);
583: break;
584:
585: case (MDOC_Bd):
1.16 schwarze 586: if (0 == strcmp(p, "ragged"))
1.1 kristaps 587: return(MDOC_Ragged);
1.16 schwarze 588: else if (0 == strcmp(p, "unfilled"))
1.1 kristaps 589: return(MDOC_Unfilled);
1.16 schwarze 590: else if (0 == strcmp(p, "filled"))
1.1 kristaps 591: return(MDOC_Filled);
1.16 schwarze 592: else if (0 == strcmp(p, "literal"))
1.1 kristaps 593: return(MDOC_Literal);
1.16 schwarze 594: else if (0 == strcmp(p, "file"))
1.1 kristaps 595: return(MDOC_File);
1.16 schwarze 596: else if (0 == strcmp(p, "offset"))
1.1 kristaps 597: return(MDOC_Offset);
1.16 schwarze 598: else if (0 == strcmp(p, "compact"))
1.1 kristaps 599: return(MDOC_Compact);
1.17 schwarze 600: else if (0 == strcmp(p, "centered"))
601: return(MDOC_Centred);
1.1 kristaps 602: break;
603:
604: case (MDOC_Bf):
1.16 schwarze 605: if (0 == strcmp(p, "emphasis"))
1.1 kristaps 606: return(MDOC_Emphasis);
1.16 schwarze 607: else if (0 == strcmp(p, "literal"))
1.1 kristaps 608: return(MDOC_Literal);
1.16 schwarze 609: else if (0 == strcmp(p, "symbolic"))
1.1 kristaps 610: return(MDOC_Symbolic);
611: break;
612:
613: case (MDOC_Bk):
1.16 schwarze 614: if (0 == strcmp(p, "words"))
1.1 kristaps 615: return(MDOC_Words);
616: break;
617:
618: case (MDOC_Bl):
1.16 schwarze 619: if (0 == strcmp(p, "bullet"))
1.1 kristaps 620: return(MDOC_Bullet);
1.16 schwarze 621: else if (0 == strcmp(p, "dash"))
1.1 kristaps 622: return(MDOC_Dash);
1.16 schwarze 623: else if (0 == strcmp(p, "hyphen"))
1.1 kristaps 624: return(MDOC_Hyphen);
1.16 schwarze 625: else if (0 == strcmp(p, "item"))
1.1 kristaps 626: return(MDOC_Item);
1.16 schwarze 627: else if (0 == strcmp(p, "enum"))
1.1 kristaps 628: return(MDOC_Enum);
1.16 schwarze 629: else if (0 == strcmp(p, "tag"))
1.1 kristaps 630: return(MDOC_Tag);
1.16 schwarze 631: else if (0 == strcmp(p, "diag"))
1.1 kristaps 632: return(MDOC_Diag);
1.16 schwarze 633: else if (0 == strcmp(p, "hang"))
1.1 kristaps 634: return(MDOC_Hang);
1.16 schwarze 635: else if (0 == strcmp(p, "ohang"))
1.1 kristaps 636: return(MDOC_Ohang);
1.16 schwarze 637: else if (0 == strcmp(p, "inset"))
1.1 kristaps 638: return(MDOC_Inset);
1.16 schwarze 639: else if (0 == strcmp(p, "column"))
1.1 kristaps 640: return(MDOC_Column);
1.16 schwarze 641: else if (0 == strcmp(p, "width"))
1.1 kristaps 642: return(MDOC_Width);
1.16 schwarze 643: else if (0 == strcmp(p, "offset"))
1.1 kristaps 644: return(MDOC_Offset);
1.16 schwarze 645: else if (0 == strcmp(p, "compact"))
1.1 kristaps 646: return(MDOC_Compact);
1.16 schwarze 647: else if (0 == strcmp(p, "nested"))
1.1 kristaps 648: return(MDOC_Nested);
649: break;
650:
651: case (MDOC_Rv):
652: /* FALLTHROUGH */
653: case (MDOC_Ex):
1.16 schwarze 654: if (0 == strcmp(p, "std"))
1.1 kristaps 655: return(MDOC_Std);
656: break;
657: default:
658: break;
659: }
660:
661: return(MDOC_ARG_MAX);
662: }
663:
664:
665: static int
1.6 schwarze 666: argv_multi(struct mdoc *m, int line,
1.1 kristaps 667: struct mdoc_argv *v, int *pos, char *buf)
668: {
1.24 schwarze 669: enum margserr ac;
1.1 kristaps 670: char *p;
671:
672: for (v->sz = 0; ; v->sz++) {
673: if ('-' == buf[*pos])
674: break;
1.24 schwarze 675: ac = args(m, line, pos, buf, 0, &p);
676: if (ARGS_ERROR == ac)
1.1 kristaps 677: return(0);
1.24 schwarze 678: else if (ARGS_EOLN == ac)
1.1 kristaps 679: break;
680:
1.19 schwarze 681: if (0 == v->sz % MULTI_STEP)
682: v->value = mandoc_realloc(v->value,
1.1 kristaps 683: (v->sz + MULTI_STEP) * sizeof(char *));
1.19 schwarze 684:
685: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 686: }
687:
1.4 schwarze 688: return(1);
1.1 kristaps 689: }
690:
691:
692: static int
1.6 schwarze 693: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 694: struct mdoc_argv *v, int *pos, char *buf)
695: {
1.24 schwarze 696: enum margserr ac;
1.1 kristaps 697: char *p;
698:
699: if ('-' == buf[*pos])
700: return(1);
701:
1.24 schwarze 702: ac = args(m, line, pos, buf, 0, &p);
703: if (ARGS_ERROR == ac)
1.1 kristaps 704: return(0);
1.24 schwarze 705: if (ARGS_EOLN == ac)
1.1 kristaps 706: return(1);
707:
708: v->sz = 1;
1.19 schwarze 709: v->value = mandoc_malloc(sizeof(char *));
710: v->value[0] = mandoc_strdup(p);
1.1 kristaps 711:
712: return(1);
713: }
714:
715:
716: /*
717: * Parse a single, mandatory value from the stream.
718: */
719: static int
1.6 schwarze 720: argv_single(struct mdoc *m, int line,
1.1 kristaps 721: struct mdoc_argv *v, int *pos, char *buf)
722: {
1.24 schwarze 723: int ppos;
724: enum margserr ac;
1.1 kristaps 725: char *p;
726:
727: ppos = *pos;
728:
1.24 schwarze 729: ac = args(m, line, pos, buf, 0, &p);
730: if (ARGS_ERROR == ac)
1.1 kristaps 731: return(0);
1.24 schwarze 732: if (ARGS_EOLN == ac)
1.7 schwarze 733: return(mdoc_perr(m, line, ppos, EARGVAL));
1.1 kristaps 734:
735: v->sz = 1;
1.19 schwarze 736: v->value = mandoc_malloc(sizeof(char *));
737: v->value[0] = mandoc_strdup(p);
1.1 kristaps 738:
739: return(1);
740: }
741:
742:
743: /*
744: * Determine rules for parsing arguments. Arguments can either accept
745: * no parameters, an optional single parameter, one parameter, or
746: * multiple parameters.
747: */
748: static int
749: argv(struct mdoc *mdoc, int line,
750: struct mdoc_argv *v, int *pos, char *buf)
751: {
752:
753: v->sz = 0;
754: v->value = NULL;
755:
756: switch (mdoc_argvflags[v->arg]) {
757: case (ARGV_SINGLE):
758: return(argv_single(mdoc, line, v, pos, buf));
759: case (ARGV_MULTI):
760: return(argv_multi(mdoc, line, v, pos, buf));
761: case (ARGV_OPT_SINGLE):
762: return(argv_opt_single(mdoc, line, v, pos, buf));
763: default:
764: /* ARGV_NONE */
765: break;
766: }
767:
768: return(1);
769: }
![[BACK]](/icons/back.gif){kind=icon}
Return to mdoc_argv.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / mandoc