8ef0ae8a8f
This simplifies the code (e.g. allowing use of qsort(3) instead of a hand-rolled mergesort) and should have better cache properties. The waste of unused args arrays after resizes is approximately the same as the savings from getting rid of the next pointers. At the same time, remove a piece of global state and move some duplicated code into a function.
59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kenneth Almquist.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)expand.h 8.2 (Berkeley) 5/4/95
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* $FreeBSD$
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*/
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struct arglist {
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char **args;
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int count;
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int capacity;
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char *smallarg[1];
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};
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/*
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* expandarg() flags
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*/
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#define EXP_FULL 0x1 /* perform word splitting & file globbing */
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#define EXP_TILDE 0x2 /* do normal tilde expansion */
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#define EXP_VARTILDE 0x4 /* expand tildes in an assignment */
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#define EXP_CASE 0x10 /* keeps quotes around for CASE pattern */
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#define EXP_SPLIT_LIT 0x20 /* IFS split literal text ${v+-a b c} */
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#define EXP_LIT_QUOTED 0x40 /* for EXP_SPLIT_LIT, start off quoted */
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void emptyarglist(struct arglist *);
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union node;
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void expandarg(union node *, struct arglist *, int);
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void rmescapes(char *);
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int casematch(union node *, const char *);
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