1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33struct arglist {
34	char **args;
35	int count;
36	int capacity;
37	char *smallarg[1];
38};
39
40/*
41 * expandarg() flags
42 */
43#define EXP_SPLIT	0x1	/* perform word splitting */
44#define EXP_TILDE	0x2	/* do normal tilde expansion */
45#define	EXP_VARTILDE	0x4	/* expand tildes in an assignment */
46#define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
47#define EXP_SPLIT_LIT	0x20	/* IFS split literal text ${v+-a b c} */
48#define EXP_LIT_QUOTED	0x40	/* for EXP_SPLIT_LIT, start off quoted */
49#define EXP_GLOB	0x80	/* perform file globbing */
50
51#define EXP_FULL	(EXP_SPLIT | EXP_GLOB)
52
53
54void emptyarglist(struct arglist *);
55void appendarglist(struct arglist *, char *);
56union node;
57void expandarg(union node *, struct arglist *, int);
58void rmescapes(char *);
59int casematch(union node *, const char *);
60