xref: /freebsd/bin/sh/expand.h (revision 41059135ce931c0f1014a999ffabc6bc470ce856)
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  *	@(#)expand.h	8.2 (Berkeley) 5/4/95
33  * $FreeBSD$
34  */
35 
36 struct arglist {
37 	char **args;
38 	int count;
39 	int capacity;
40 	char *smallarg[1];
41 };
42 
43 /*
44  * expandarg() flags
45  */
46 #define EXP_SPLIT	0x1	/* perform word splitting */
47 #define EXP_TILDE	0x2	/* do normal tilde expansion */
48 #define	EXP_VARTILDE	0x4	/* expand tildes in an assignment */
49 #define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
50 #define EXP_SPLIT_LIT	0x20	/* IFS split literal text ${v+-a b c} */
51 #define EXP_LIT_QUOTED	0x40	/* for EXP_SPLIT_LIT, start off quoted */
52 #define EXP_GLOB	0x80	/* perform file globbing */
53 
54 #define EXP_FULL	(EXP_SPLIT | EXP_GLOB)
55 
56 
57 void emptyarglist(struct arglist *);
58 void appendarglist(struct arglist *, char *);
59 union node;
60 void expandarg(union node *, struct arglist *, int);
61 void rmescapes(char *);
62 int casematch(union node *, const char *);
63