xref: /freebsd/bin/sh/expand.h (revision 09127a36371d5f5ac109ad1063e7fe53ee9bf356)
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  * 4. 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 strlist {
37 	struct strlist *next;
38 	char *text;
39 };
40 
41 
42 struct arglist {
43 	struct strlist *list;
44 	struct strlist **lastp;
45 };
46 
47 /*
48  * expandarg() flags
49  */
50 #define EXP_FULL	0x1	/* perform word splitting & file globbing */
51 #define EXP_TILDE	0x2	/* do normal tilde expansion */
52 #define	EXP_VARTILDE	0x4	/* expand tildes in an assignment */
53 #define	EXP_REDIR	0x8	/* file glob for a redirection (1 match only) */
54 #define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
55 #define EXP_SPLIT_LIT	0x20	/* IFS split literal text ${v+-a b c} */
56 #define EXP_LIT_QUOTED	0x40	/* for EXP_SPLIT_LIT, start off quoted */
57 
58 
59 union node;
60 void expandarg(union node *, struct arglist *, int);
61 void expari(int);
62 void rmescapes(char *);
63 int casematch(union node *, const char *);
64