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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kenneth Almquist.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)parser.h 8.1 (Berkeley) 5/31/93
* $Id$
*/
/* control characters in argument strings */
#define CTLESC '\201'
#define CTLVAR '\202'
#define CTLENDVAR '\203'
#define CTLBACKQ '\204'
#define CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */
/* CTLBACKQ | CTLQUOTE == '\205' */
#define CTLARI '\206'
#define CTLENDARI '\207'
/* variable substitution byte (follows CTLVAR) */
#define VSTYPE 07 /* type of variable substitution */
#define VSNUL 040 /* colon--treat the empty string as unset */
#define VSQUOTE 0100 /* inside double quotes--suppress splitting */
/* values of VSTYPE field */
#define VSNORMAL 1 /* normal variable: $var or ${var} */
#define VSMINUS 2 /* ${var-text} */
#define VSPLUS 3 /* ${var+text} */
#define VSQUESTION 4 /* ${var?message} */
#define VSASSIGN 5 /* ${var=text} */
/*
* NEOF is returned by parsecmd when it encounters an end of file. It
* must be distinct from NULL, so we use the address of a variable that
* happens to be handy.
*/
extern int tokpushback;
#define NEOF ((union node *)&tokpushback)
extern int whichprompt; /* 1 == PS1, 2 == PS2 */
#ifdef __STDC__
union node *parsecmd(int);
int goodname(char *);
char *getprompt(void *);
#else
union node *parsecmd();
int goodname();
char *getprompt();
#endif
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