0,0 → 1,83 |
/* $NetBSD: parser.h,v 1.14 2000/07/27 04:09:28 cgd Exp $ */ |
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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 8.3 (Berkeley) 5/4/95 |
*/ |
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/* 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' |
#define CTLQUOTEMARK '\210' |
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/* variable substitution byte (follows CTLVAR) */ |
#define VSTYPE 0x0f /* type of variable substitution */ |
#define VSNUL 0x10 /* colon--treat the empty string as unset */ |
#define VSQUOTE 0x80 /* inside double quotes--suppress splitting */ |
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/* values of VSTYPE field */ |
#define VSNORMAL 0x1 /* normal variable: $var or ${var} */ |
#define VSMINUS 0x2 /* ${var-text} */ |
#define VSPLUS 0x3 /* ${var+text} */ |
#define VSQUESTION 0x4 /* ${var?message} */ |
#define VSASSIGN 0x5 /* ${var=text} */ |
#define VSTRIMLEFT 0x6 /* ${var#pattern} */ |
#define VSTRIMLEFTMAX 0x7 /* ${var##pattern} */ |
#define VSTRIMRIGHT 0x8 /* ${var%pattern} */ |
#define VSTRIMRIGHTMAX 0x9 /* ${var%%pattern} */ |
#define VSLENGTH 0xa /* ${#var} */ |
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/* |
* 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 */ |
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union node *parsecmd(int); |
void fixredir(union node *, const char *, int); |
int goodname(char *); |
const char *getprompt(void *); |