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bzip2 1.0.5 (Default branch)
03-21-2008
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PerlIO::via::Bzip2(3) User Contributed Perl Documentation PerlIO::via::Bzip2(3) NAME
PerlIO::via::Bzip2 - PerlIO layer for Bzip2 (de)compression SYNOPSIS
use PerlIO::via::Bzip2; # or use PerlIO::via::Bzip2 level => 9; # Maximum compression # Read a bzip2 compressed file from disk. open(my $fh, "<:via(Bzip2)", "compressed_file"); my $uncompressed_data = <$fh>; # Compress data on-the-fly to a bzip2 compressed file on disk. open(my $fh, ">:via(Bzip2)", "compressed_file"); print {$fh} $uncompressed_data; # Set compression level PerlIO::via::Bzip2->level(5); open(my $fh, ">:via(Bzip2)", "compressed_file"); print {$fh} $uncompressed_data; DESCRIPTION
This module implements a PerlIO layer which will let you handle bzip2 compressed files transparently. Class Methods level([$level]) level sets or returns the compression level of the bzip2 library. It ranges from 1 (least compression, most efficient memory use) to 9 (best compression, most memory usage). This parameter can also be set during using library import, using "use PerlIO::via::Bzip2 level => $level". BUGS
Using binmode() on an opened file for compression will pop (remove) the layer. PREREQUISITES
This module requires Compress::Bzip2 version 1.03. SEE ALSO
PerlIO::via, Compress::Bzip2 AUTHOR
Arjen Laarhoven, <arjen@cpan.org> COPYRIGHT AND LICENSE
Copyright (C) 2005 by Arjen Laarhoven This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2005-03-04 PerlIO::via::Bzip2(3)