diff options
Diffstat (limited to 'zgrep.in')
| -rw-r--r-- | zgrep.in | 116 |
1 files changed, 49 insertions, 67 deletions
@@ -7,12 +7,11 @@ LC_ALL=C export LC_ALL -invocation_name=$0 args= -default_prog=lzip have_pat=0 list=0 no_name=0 +two_hyphens=0 # Loop over args until pattern is found while [ x"$1" != x ] ; do @@ -25,10 +24,10 @@ while [ x"$1" != x ] ; do echo "transparent search on any combination of compressed and non-compressed" echo "files. If any given file is compressed, its uncompressed content is" echo "used. If a given file does not exist, zgrep tries the compressed file" - echo "name corresponding to the default compressor selected. The supported" - echo "compressors are gzip, bzip2, lzip and xz." + echo "names corresponding to the supported compressors." + echo "The supported compressors are gzip, bzip2, lzip and xz." echo - echo "Usage: ${invocation_name} [OPTIONS] [GREP_OPTIONS] PATTERN [FILES]" + echo "Usage: $0 [OPTIONS] [GREP_OPTIONS] PATTERN [FILES]" echo echo "GREP_OPTIONS are passed directly to grep." echo "The exit status from grep is preserved." @@ -36,13 +35,9 @@ while [ x"$1" != x ] ; do echo "Options:" echo " -h, --help display this help and exit" echo " -V, --version output version information and exit" - echo " --gzip use gzip as default decompressor" - echo " --bzip2 use bzip2 as default decompressor" - echo " --lzip use lzip as default decompressor (default)" - echo " --xz use xz as default decompressor" echo - echo "Report bugs to lzip-bug@nongnu.org" - echo "Lzip home page: http://www.nongnu.org/lzip/lzip.html" + echo "Report bugs to zutils-bug@nongnu.org" + echo "Zutils home page: http://www.nongnu.org/zutils/zutils.html" exit 0 ;; --version | --ve* | -V) echo "Zgrep VERSION" @@ -50,16 +45,8 @@ while [ x"$1" != x ] ; do echo "This script is free software: you have unlimited permission" echo "to copy, distribute and modify it." exit 0 ;; - --gz*) - default_prog=gzip ;; - --bz*) - default_prog=bzip2 ;; - --lz*) - default_prog=lzip ;; - --xz*) - default_prog=xz ;; -[drRzZ] | --di* | --exc* | --inc* | --nu* | --rec*) - echo "${invocation_name}: option $1 not supported" + echo "$0: option $1 not supported" exit 1 ;; -e?* | -f?* | --file=* | --reg*=*) args="${args} $1"; have_pat=1 ;; @@ -74,69 +61,64 @@ while [ x"$1" != x ] ; do -h | --no-f*) args="${args} $1"; no_name=1 ;; --) - break ;; + shift ; two_hyphens=1 ; break ;; -?*) args="${args} $1" ;; *) - if test ${have_pat} = 0; then args="${args} $1"; have_pat=1 + if [ ${have_pat} = 0 ]; then args="${args} $1"; have_pat=1 else break fi ;; esac shift done -if test ${have_pat} = 0; then - echo "${invocation_name}: Pattern not found; use --help for usage." 1>&2 +if [ ${have_pat} = 0 ]; then + echo "$0: Pattern not found; use --help for usage." 1>&2 exit 1 fi -if test $# -eq 0; then - ${default_prog} -cdfq | grep ${args} - exit $? -fi - retval=0 for i in "$@" ; do - prog="${default_prog} -cdfq" - case "$i" in - *.gz | *.tgz) - prog="gzip -cdfq" ;; - *.bz2 | *.tbz | *.tbz2) - prog="bzip2 -cdfq" ;; - *.lz | *.tlz) - prog="lzip -cdfq" ;; - *.xz | *.txz) - prog="xz -cdfq" ;; - *) - if test -f "$i"; then prog=cat - else - case ${default_prog} in - gzip) - if test -f "$i.gz"; then i="$i.gz"; fi ;; - bzip2) - if test -f "$i.bz2"; then i="$i.bz2"; fi ;; - lzip) - if test -f "$i.lz"; then i="$i.lz"; fi ;; - xz) - if test -f "$i.xz"; then i="$i.xz"; fi ;; - esac - fi ;; - esac - if test ${list} -eq 1; then - ${prog} -- "$i" | grep ${args} 2>&1 > /dev/null && echo "$i" - r=$? - elif test $# -eq 1 -o ${no_name} -eq 1; then - ${prog} -- "$i" | grep ${args} - r=$? + if [ "$i" = "--" ] && [ ${two_hyphens} = 0 ] ; then two_hyphens=1 else - j=`printf "%s" "$i" | sed 's/\\\\/\\\\\\\\/g'` - j=`printf "%s" "$j" | sed 's/|/\\\\|/g'` - j=`printf "%s" "$j" | sed 's/&/\\\\&/g'` - j=`printf "%s" "$j" | tr '\n' ' '` - ${prog} -- "$i" | grep ${args} | sed "s|^|${j}:|" - r=$? + if [ -f "$i" ]; then + case "$i" in + *.gz | *.tgz) + prog="gzip -cdfq" ;; + *.bz2 | *.tbz | *.tbz2) + prog="bzip2 -cdfq" ;; + *.lz | *.tlz) + prog="lzip -cdfq" ;; + *.xz | *.txz) + prog="xz -cdfq" ;; + *) + prog=cat ;; + esac + elif [ -f "$i.gz" ]; then i="$i.gz" ; prog="gzip -cdfq" + elif [ -f "$i.bz2" ]; then i="$i.bz2" ; prog="bzip2 -cdfq" + elif [ -f "$i.lz" ]; then i="$i.lz" ; prog="lzip -cdfq" + elif [ -f "$i.xz" ]; then i="$i.xz" ; prog="xz -cdfq" + else + echo "$0: File \"$i\" not found or not a regular file" 1>&2 + if [ ${retval} = 0 ]; then retval=1 ; fi + continue + fi + if [ ${list} = 1 ]; then + ${prog} -- "$i" | grep ${args} 2>&1 > /dev/null && echo "$i" + r=$? + elif [ $# = 1 ] || [ ${no_name} = 1 ]; then + ${prog} -- "$i" | grep ${args} + r=$? + else + j=`printf "%s" "$i" | sed 's/\\\\/\\\\\\\\/g'` + j=`printf "%s" "$j" | sed 's/|/\\\\|/g'` + j=`printf "%s" "$j" | sed 's/&/\\\\&/g'` + j=`printf "%s" "$j" | tr '\n' ' '` + ${prog} -- "$i" | grep ${args} | sed "s|^|${j}:|" + r=$? + fi + [ $r != 0 ] && retval="$r" fi - test "$r" -ne 0 && retval="$r" done exit ${retval} |