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