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 33 struct 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 54 void emptyarglist(struct arglist *); 55 void appendarglist(struct arglist *, char *); 56 union node; 57 void expandarg(union node *, struct arglist *, int); 58 void rmescapes(char *); 59 int casematch(union node *, const char *); 60