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Revision 1.7, Thu May 8 15:35:23 2008 UTC (6 years, 6 months ago) by wiz
Branch: MAIN
CVS Tags: yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pagecache-tag8, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, matt-premerge-20091211, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver
Branch point for: yamt-pagecache, tls-maxphys
Changes since 1.6: +1 -3 lines

2-clause my license.

#!/bin/sh
#
# $NetBSD: zgrep,v 1.7 2008/05/08 15:35:23 wiz Exp $
#
# Copyright (c) 2003 Thomas Klausner.
#
# 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 AUTHOR ``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 AUTHOR 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.

grep=/usr/bin/grep
zcat=/usr/bin/zcat

endofopts=0
pattern_found=0
grep_args=""
hyphen=0
silent=0

prg=$0

# handle being called 'zegrep' or 'zfgrep'
case ${prg} in
    *zegrep)
	grep_args="-E";;
    *zfgrep)
	grep_args="-F";;
esac

# skip all options and pass them on to grep taking care of options
# with arguments, and if -e was supplied

while [ $# -gt 0 -a ${endofopts} -eq 0 ]
do
    case $1 in
    # from GNU grep-2.5.1 -- keep in sync!
	-[ABCDXdefm])
	    if [ $# -lt 2 ]
		then
		echo "${prg}: missing argument for $1 flag" >&2
		exit 1
	    fi
	    case $1 in
		-e)
		    pattern="$2"
		    pattern_found=1
		    shift 2
		    break
		    ;;
		*)
		    ;;
	    esac
	    grep_args="${grep_args} $1 $2"
	    shift 2
	    ;;
	--)
	    shift
	    endofopts=1
	    ;;
	-)
	    hyphen=1
	    shift
	    ;;
	-h)
	    silent=1
	    shift
	    ;;
	-*)
	    grep_args="${grep_args} $1"
	    shift
	    ;;
	*)
	    # pattern to grep for
	    endofopts=1
	    ;;
    esac
done

# if no -e option was found, take next argument as grep-pattern
if [ ${pattern_found} -lt 1 ]
then
    if [ $# -ge 1 ]; then
	pattern="$1"
	shift
    elif [ ${hyphen} -gt 0 ]; then
	pattern="-"
    else
	echo "${prg}: missing pattern" >&2
	exit 1
    fi
fi

# call grep ...
if [ $# -lt 1 ]
then
    # ... on stdin
    ${zcat} -fq - | ${grep} ${grep_args} -- "${pattern}" -
else
    # ... on all files given on the command line
    if [ ${silent} -lt 1 ]; then
	grep_args="-H ${grep_args}"
    fi
    while [ $# -gt 0 ]
    do
	${zcat} -fq -- "$1" | ${grep} --label="${1}" ${grep_args} -- "${pattern}" -
	shift
    done
fi

exit 0