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#!/usr/bin/perl -w
# This program searches for the given Perl regular expression in a Zip archive.
# Archive is assumed to contain text files.
# By Ned Konz, perl@bike-nomad.com
# Usage:
# perl zipGrep.pl 'pattern' myZip.zip
#
use strict;
use Archive::Zip qw(:CONSTANTS :ERROR_CODES);
if (@ARGV != 2) {
print <<EOF;
This program searches for the given Perl regular expression in a Zip archive.
Archive is assumed to contain text files.
Usage:
perl $0 'pattern' myZip.zip
EOF
exit 1;
}
my $pattern = shift;
$pattern = qr{$pattern}; # compile the regular expression
my $zipName = shift;
my $zip = Archive::Zip->new();
if ($zip->read($zipName) != AZ_OK) {
die "Read error reading $zipName\n";
}
foreach my $member ($zip->members()) {
my ($bufferRef, $status, $lastChunk);
my $memberName = $member->fileName();
my $lineNumber = 1;
$lastChunk = '';
$member->desiredCompressionMethod(COMPRESSION_STORED);
$status = $member->rewindData();
die "rewind error $status" if $status != AZ_OK;
while (!$member->readIsDone()) {
($bufferRef, $status) = $member->readChunk();
die "readChunk error $status"
if $status != AZ_OK && $status != AZ_STREAM_END;
my $buffer = $lastChunk . $$bufferRef;
while ($buffer =~ m{(.*$pattern.*\n)}mg) {
print "$memberName:$1";
}
($lastChunk) = $$bufferRef =~ m{([^\n\r]+)\z};
}
$member->endRead();
}
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