freebsd-dev/contrib/bmake/metachar.c
2015-10-23 17:38:01 +00:00

89 lines
3.6 KiB
C

/* $NetBSD: metachar.c,v 1.5 2015/06/19 08:03:35 mlelstv Exp $ */
/*-
* Copyright (c) 2015 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#if defined(MAKE_NATIVE) || defined(HAVE_NBTOOL_CONFIG_H)
#include <sys/cdefs.h>
#endif
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: metachar.c,v 1.5 2015/06/19 08:03:35 mlelstv Exp $");
#endif
#include "metachar.h"
/*
* The following array is used to make a fast determination of which
* characters are interpreted specially by the shell. If a command
* contains any of these characters, it is executed by the shell, not
* directly by us.
*
* perhaps move it to ctype?
*/
unsigned char _metachar[128] = {
// nul soh stx etx eot enq ack bel
1, 0, 0, 0, 0, 0, 0, 0,
// bs ht nl vt np cr so si
0, 0, 1, 0, 0, 0, 0, 0,
// dle dc1 dc2 dc3 dc4 nak syn etb
0, 0, 0, 0, 0, 0, 0, 0,
// can em sub esc fs gs rs us
0, 0, 0, 0, 0, 0, 0, 0,
// sp ! " # $ % & '
0, 1, 1, 1, 1, 0, 1, 1,
// ( ) * + , - . /
1, 1, 1, 0, 0, 0, 0, 0,
// 0 1 2 3 4 5 6 7
0, 0, 0, 0, 0, 0, 0, 0,
// 8 9 : ; < = > ?
0, 0, 0, 1, 1, 0, 1, 1,
// @ A B C D E F G
0, 0, 0, 0, 0, 0, 0, 0,
// H I J K L M N O
0, 0, 0, 0, 0, 0, 0, 0,
// P Q R S T U V W
0, 0, 0, 0, 0, 0, 0, 0,
// X Y Z [ \ ] ^ _
0, 0, 0, 1, 1, 1, 1, 0,
// ` a b c d e f g
1, 0, 0, 0, 0, 0, 0, 0,
// h i j k l m n o
0, 0, 0, 0, 0, 0, 0, 0,
// p q r s t u v w
0, 0, 0, 0, 0, 0, 0, 0,
// x y z { | } ~ del
0, 0, 0, 1, 1, 1, 1, 0,
};