관리-도구

편집 파일: compress.pm

package DBM_Filter::compress ; use strict; use warnings; use Carp; our $VERSION = '0.03'; BEGIN { eval { require Compress::Zlib; Compress::Zlib->import() }; croak "Compress::Zlib module not found.\n" if $@; } sub Store { $_ = compress($_) } sub Fetch { $_ = uncompress($_) } 1; __END__ =head1 NAME DBM_Filter::compress - filter for DBM_Filter =head1 SYNOPSIS use SDBM_File; # or DB_File, GDBM_File, NDBM_File, ODBM_File use DBM_Filter ; $db = tie %hash, ... $db->Filter_Push('compress'); =head1 DESCRIPTION This DBM filter will compress all data before it is written to the database and uncompressed it on reading. A fatal error will be thrown if the Compress::Zlib module is not available. =head1 SEE ALSO L<DBM_Filter>, L<perldbmfilter>, L<Compress::Zlib> =head1 AUTHOR Paul Marquess pmqs@cpan.org