# Copyright 2010, 2011, 2013, 2014 Kevin Ryde
# This file is part of Filter-gunzip.
#
# Filter-gunzip is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# Filter-gunzip is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with Filter-gunzip. If not, see <http://www.gnu.org/licenses/>.
package Filter::AnyUncompress;
use strict;
use warnings;
use Carp;
use Filter::Util::Call;
our $VERSION = 6;
use constant DEBUG => 1;
sub filter {
my ($self) = @_;
if (DEBUG) { print STDERR "AnyUncompress\n"; }
my $status = filter_read(3);
if (DEBUG) { print " filter_read() $status\n"; }
if ($status <= 0) { return $status; }
my $class = ($_ eq "\037\213" ? 'Filter::Gunzip'
: $_ eq 'BZh' ? 'Filter::Bunzip2'
: undef);
filter_del($self);
if ($class) {
eval "require $class";
my $f = $class->new (input => $_);
filter_add($f);
}
}
sub import {
my ($class) = @_;
my $self = $class->new;
filter_add($self);
}
sub new {
my ($class) = @_;
return bless {}, $class;
}
1;
__END__