# zgrep -- a wrapper around a grep program that decompresses files as needed
# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
-# Copyright (C) 1998, 2001, 2002, 2006 Free Software Foundation
+# Copyright (C) 1998, 2001, 2002, 2006, 2007, 2009, 2010 Free Software
+# Foundation
+
# Copyright (C) 1993 Jean-loup Gailly
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-PATH="BINDIR:$PATH"; export PATH
-
-case "$0" in
- *egrep) grep=${EGREP-egrep} ;;
- *fgrep) grep=${FGREP-fgrep} ;;
- *) grep=${GREP-grep} ;;
+bindir=@bindir@
+case $1 in
+--__bindir) bindir=${2?}; shift; shift;;
esac
+PATH=$bindir:$PATH
-version="z$grep (gzip) @VERSION@
-Copyright (C) 2006 Free Software Foundation, Inc.
+grep='${GREP-'\''@GREP@'\''}'
+
+version='zgrep (gzip) @VERSION@
+Copyright (C) 2010-2013 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.
-Written by Jean-loup Gailly."
+Written by Jean-loup Gailly.'
-usage="Usage: z$grep [OPTION]... [-e] PATTERN [FILE]...
+usage="Usage: $0 [OPTION]... [-e] PATTERN [FILE]...
Look for instances of PATTERN in the input FILEs, using their
uncompressed contents if they are compressed.
-OPTIONs are the same as for '$grep'.
+OPTIONs are the same as for 'grep'.
Report bugs to <bug-gzip@gnu.org>."
-pat=""
-after_dash_dash=""
+# sed script to escape all ' for the shell, and then (to handle trailing
+# newlines correctly) append ' to the last line.
+escape='
+ s/'\''/'\''\\'\'''\''/g
+ $s/$/'\''/
+'
+operands=
+have_pat=0
files_with_matches=0
files_without_matches=0
no_filename=0
with_filename=0
while test $# -ne 0; do
- case "$after_dash_dash$1" in
- --d* | --rec*) echo >&2 "$0: $1: option not supported"; exit 2;;
- --h*) echo "$usage" || exit 2; exit;;
- --files-with-*) files_with_matches=1;;
- --files-witho*) files_without_matches=1;;
- --no-f*) no_filename=1;;
- --v*) echo "$version" || exit 2; exit;;
- --wi*) with_filename=1;;
- --*) ;;
- -*)
- case "$1" in
- -*[dr]*) echo >&2 "$0: $1: option not supported"; exit 2;;
- esac
- case "$1" in
- -*H*) with_filename=1;;
- esac
- case "$1" in
- -*h*) no_filename=1;;
- esac
- case "$1" in
- -*L*) files_without_matches=1;;
- esac
- case "$1" in
- -*l*) files_with_matches=1;;
- esac;;
+ option=$1
+ shift
+ optarg=
+
+ case $option in
+ (-[0123456789EFGHIKLPRTUVZabchilnoqrsuvwxyz]*[!0123456789]*)
+ arg2=-\'$(expr "X$option" : 'X-.[0-9]*\(.*\)' | sed "$escape")
+ eval "set -- $arg2 "'${1+"$@"}'
+ option=$(expr "X$option" : 'X\(-.[0-9]*\)');;
+ (--binary-*=* | --[lm]a*=* | --reg*=*)
+ ;;
+ (-[ABCDXdefm] | binary-* | --file | --[lm]a* | --reg*)
+ case ${1?"$option option requires an argument"} in
+ (*\'*)
+ optarg=" '"$(printf '%s\n' "$1" | sed "$escape");;
+ (*)
+ optarg=" '$1'";;
+ esac
+ shift;;
+ (-f?*\'*)
+ optarg=" '"$(expr "X$option" : 'X-f\(.*\)' | sed "$escape")
+ option=-f;;
+ (-f?*)
+ optarg=" '"$(expr "X$option" : 'X-f\(.*\)')\'
+ option=-f;;
+ (--file=*\'*)
+ optarg=" '"$(expr "X$option" : 'X--file=\(.*\)' | sed "$escape")
+ option=--file;;
+ (--file=*)
+ optarg=" '"$(expr "X$option" : 'X--file=\(.*\)')\'
+ option=--file;;
+ (--)
+ break;;
+ (-?*)
+ ;;
+ (*)
+ case $option in
+ (*\'*)
+ operands="$operands '"$(printf '%s\n' "$option" | sed "$escape");;
+ (*)
+ operands="$operands '$option'";;
+ esac
+ ${POSIXLY_CORRECT+break}
+ continue;;
esac
- case "$after_dash_dash$1" in
- -[ef]) opt="$opt $1"; shift; pat="$1"
- if test "$grep" = grep; then # grep is buggy with -e on SVR4
- grep=egrep
- fi;;
- -[ABCdm])opt="$opt $1 $2"; shift;;
- --) opt="$opt $1"; after_dash_dash=1;;
- -*) opt="$opt $1";;
- *) if test -z "$pat"; then
- pat="$1"
- else
- break;
- fi;;
+
+ case $option in
+ (-[drRzZ] | --di* | --exc* | --inc* | --rec* | --nu*)
+ printf >&2 '%s: %s: option not supported\n' "$0" "$option"
+ exit 2;;
+ (-e* | --reg*)
+ have_pat=1;;
+ (-f | --file)
+ # The pattern is coming from a file rather than the command-line.
+ # If the file is actually stdin then we need to do a little
+ # magic, since we use stdin to pass the gzip output to grep.
+ # Turn the -f option into an -e option by copying the file's
+ # contents into OPTARG.
+ case $optarg in
+ (" '-'" | " '/dev/stdin'" | " '/dev/fd/0'")
+ option=-e
+ optarg=" '"$(sed "$escape") || exit 2;;
+ esac
+ have_pat=1;;
+ (--h | --he | --hel | --help)
+ echo "$usage" || exit 2
+ exit;;
+ (-H | --wi | --wit | --with | --with- | --with-f | --with-fi \
+ | --with-fil | --with-file | --with-filen | --with-filena | --with-filenam \
+ | --with-filename)
+ with_filename=1
+ continue;;
+ (-l | --files-with-*)
+ files_with_matches=1;;
+ (-L | --files-witho*)
+ files_without_matches=1;;
+ (-h | --no-f*)
+ no_filename=1;;
+ (-V | --v | --ve | --ver | --vers | --versi | --versio | --version)
+ echo "$version" || exit 2
+ exit;;
esac
- shift
+
+ case $option in
+ (*\'?*)
+ option=\'$(printf '%s\n' "$option" | sed "$escape");;
+ (*)
+ option="'$option'";;
+ esac
+
+ grep="$grep $option$optarg"
done
-if test -z "$pat"; then
- echo "$usage"
- exit 2
+eval "set -- $operands "'${1+"$@"}'
+
+if test $have_pat -eq 0; then
+ case ${1?"missing pattern; try \`$0 --help' for help"} in
+ (*\'*)
+ grep="$grep -- '"$(printf '%s\n' "$1" | sed "$escape");;
+ (*)
+ grep="$grep -- '$1'";;
+ esac
+ shift
fi
if test $# -eq 0; then
- gzip -cdfq | $grep $opt "$pat"
- exit $?
+ set -- -
fi
+exec 3>&1
res=0
-for i do
- gzip -cdfq -- "$i" |
+
+for i
+do
+ # Fail if gzip or grep (or sed) fails.
+ gzip_status=$(
+ exec 5>&1
+ (gzip -cdfq -- "$i" 5>&-; echo $? >&5) 3>&- |
if test $files_with_matches -eq 1; then
- $grep $opt "$pat" > /dev/null && printf '%s\n' "$i"
+ eval "$grep" >/dev/null && { printf '%s\n' "$i" || exit 2; }
elif test $files_without_matches -eq 1; then
- $grep $opt "$pat" > /dev/null || printf '%s\n' "$i"
- elif test $with_filename -eq 0 && { test $# -eq 1 || test $no_filename -eq 1; }; then
- $grep $opt "$pat"
+ eval "$grep" >/dev/null || {
+ r=$?
+ if test $r -eq 1; then
+ printf '%s\n' "$i" || r=2
+ fi
+ exit $r
+ }
+ elif test $with_filename -eq 0 &&
+ { test $# -eq 1 || test $no_filename -eq 1; }; then
+ eval "$grep"
else
- escaped=
- while :; do
- case $i in
- *'
-'*)
- char='
-' repl='\\n';;
- *'&'*) char='&' repl='\&';;
- *'\'*) char='\\' repl='\\';;
- *'|'*) char='|' repl='\|';;
- *) break;;
- esac
- up_to_first_char="\\([^$char]*\\)"
- after_first_char="[^$char]*$char\\(.*\\)"
- escaped=$escaped`expr "X$i" : "X$up_to_first_char"`$repl
- i=`expr "X$i" : "$after_first_char"`
- done
- if test $with_filename -eq 1; then
- sed_script="s|[^:]*|$escaped$i|"
- else
- sed_script="s|^|$escaped$i:|"
- fi
-
- # Fail if either grep or sed fails.
- # Bash has ${PIPESTATUS[0]}, but that's not portable.
- exec 3>&1
- r=`
- exec 4>&1
- ($grep $opt "$pat" 4>&-; echo $? >&4) 3>&- | sed "$sed_script" >&3 4>&-
- ` &&
- exit $r
- fi
+ case $i in
+ (*'
+'* | *'&'* | *'\'* | *'|'*)
+ i=$(printf '%s\n' "$i" |
+ sed '
+ $!N
+ $s/[&\|]/\\&/g
+ $s/\n/\\n/g
+ ');;
+ esac
+ sed_script="s|^|$i:|"
+
+ # Fail if grep or sed fails.
+ r=$(
+ exec 4>&1
+ (eval "$grep" 4>&-; echo $? >&4) 3>&- | sed "$sed_script" >&3 4>&-
+ ) && exit $r
+ r=$?
+ test 1 -lt $r && exit $r || exit 2
+ fi >&3 5>&-
+ )
r=$?
+ test 128 -lt $r && exit $r
+ test "$gzip_status" -eq 0 || test "$gzip_status" -eq 2 || r=2
test $res -lt $r && res=$r
done
exit $res