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Current Path : /proc/2/root/usr/share/perl5/x86_64-linux-thread-multi/IO/Compress/
Current File : //proc/2/root/usr/share/perl5/x86_64-linux-thread-multi/IO/Compress/Base.pm
package IO::Compress::Base ;

require 5.006 ;

use strict ;
use warnings;

use IO::Compress::Base::Common 2.074 ;

use IO::File (); ;
use Scalar::Util ();

#use File::Glob;
#require Exporter ;
use Carp() ;
use Symbol();
#use bytes;

our (@ISA, $VERSION);
@ISA    = qw(IO::File Exporter);

$VERSION = '2.074';

#Can't locate object method "SWASHNEW" via package "utf8" (perhaps you forgot to load "utf8"?) at .../ext/Compress-Zlib/Gzip/blib/lib/Compress/Zlib/Common.pm line 16.

sub saveStatus
{
    my $self   = shift ;
    ${ *$self->{ErrorNo} } = shift() + 0 ;
    ${ *$self->{Error} } = '' ;

    return ${ *$self->{ErrorNo} } ;
}


sub saveErrorString
{
    my $self   = shift ;
    my $retval = shift ;
    ${ *$self->{Error} } = shift ;
    ${ *$self->{ErrorNo} } = shift() + 0 if @_ ;

    return $retval;
}

sub croakError
{
    my $self   = shift ;
    $self->saveErrorString(0, $_[0]);
    Carp::croak $_[0];
}

sub closeError
{
    my $self = shift ;
    my $retval = shift ;

    my $errno = *$self->{ErrorNo};
    my $error = ${ *$self->{Error} };

    $self->close();

    *$self->{ErrorNo} = $errno ;
    ${ *$self->{Error} } = $error ;

    return $retval;
}



sub error
{
    my $self   = shift ;
    return ${ *$self->{Error} } ;
}

sub errorNo
{
    my $self   = shift ;
    return ${ *$self->{ErrorNo} } ;
}


sub writeAt
{
    my $self = shift ;
    my $offset = shift;
    my $data = shift;

    if (defined *$self->{FH}) {
        my $here = tell(*$self->{FH});
        return $self->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) 
            if $here < 0 ;
        seek(*$self->{FH}, $offset, IO::Handle::SEEK_SET)
            or return $self->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) ;
        defined *$self->{FH}->write($data, length $data)
            or return $self->saveErrorString(undef, $!, $!) ;
        seek(*$self->{FH}, $here, IO::Handle::SEEK_SET)
            or return $self->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) ;
    }
    else {
        substr(${ *$self->{Buffer} }, $offset, length($data)) = $data ;
    }

    return 1;
}

sub outputPayload
{

    my $self = shift ;
    return $self->output(@_);
}


sub output
{
    my $self = shift ;
    my $data = shift ;
    my $last = shift ;

    return 1 
        if length $data == 0 && ! $last ;

    if ( *$self->{FilterContainer} ) {
        *_ = \$data;
        &{ *$self->{FilterContainer} }();
    }

    if (length $data) {
        if ( defined *$self->{FH} ) {
                defined *$self->{FH}->write( $data, length $data )
                or return $self->saveErrorString(0, $!, $!); 
        }
        else {
                ${ *$self->{Buffer} } .= $data ;
        }
    }

    return 1;
}

sub getOneShotParams
{
    return ( 'multistream' => [IO::Compress::Base::Common::Parse_boolean,   1],
           );
}

our %PARAMS = (
            # Generic Parameters
            'autoclose' => [IO::Compress::Base::Common::Parse_boolean,   0],
            'encode'    => [IO::Compress::Base::Common::Parse_any,       undef],
            'strict'    => [IO::Compress::Base::Common::Parse_boolean,   1],
            'append'    => [IO::Compress::Base::Common::Parse_boolean,   0],
            'binmodein' => [IO::Compress::Base::Common::Parse_boolean,   0],

            'filtercontainer' => [IO::Compress::Base::Common::Parse_code,  undef],
        );
        
sub checkParams
{
    my $self = shift ;
    my $class = shift ;

    my $got = shift || IO::Compress::Base::Parameters::new();

    $got->parse(
        {
            %PARAMS,


            $self->getExtraParams(),
            *$self->{OneShot} ? $self->getOneShotParams() 
                              : (),
        }, 
        @_) or $self->croakError("${class}: " . $got->getError())  ;

    return $got ;
}

sub _create
{
    my $obj = shift;
    my $got = shift;

    *$obj->{Closed} = 1 ;

    my $class = ref $obj;
    $obj->croakError("$class: Missing Output parameter")
        if ! @_ && ! $got ;

    my $outValue = shift ;
    my $oneShot = 1 ;

    if (! $got)
    {
        $oneShot = 0 ;
        $got = $obj->checkParams($class, undef, @_)
            or return undef ;
    }

    my $lax = ! $got->getValue('strict') ;

    my $outType = IO::Compress::Base::Common::whatIsOutput($outValue);

    $obj->ckOutputParam($class, $outValue)
        or return undef ;

    if ($outType eq 'buffer') {
        *$obj->{Buffer} = $outValue;
    }
    else {
        my $buff = "" ;
        *$obj->{Buffer} = \$buff ;
    }

    # Merge implies Append
    my $merge = $got->getValue('merge') ;
    my $appendOutput = $got->getValue('append') || $merge ;
    *$obj->{Append} = $appendOutput;
    *$obj->{FilterContainer} = $got->getValue('filtercontainer') ;

    if ($merge)
    {
        # Switch off Merge mode if output file/buffer is empty/doesn't exist
        if (($outType eq 'buffer' && length $$outValue == 0 ) ||
            ($outType ne 'buffer' && (! -e $outValue || (-w _ && -z _))) )
          { $merge = 0 }
    }

    # If output is a file, check that it is writable
    #no warnings;
    #if ($outType eq 'filename' && -e $outValue && ! -w _)
    #  { return $obj->saveErrorString(undef, "Output file '$outValue' is not writable" ) }

    $obj->ckParams($got)
        or $obj->croakError("${class}: " . $obj->error());

    if ($got->getValue('encode')) { 
        my $want_encoding = $got->getValue('encode');
        *$obj->{Encoding} = IO::Compress::Base::Common::getEncoding($obj, $class, $want_encoding);
        my $x = *$obj->{Encoding}; 
    }
    else {
        *$obj->{Encoding} = undef; 
    }
    
    $obj->saveStatus(STATUS_OK) ;

    my $status ;
    if (! $merge)
    {
        *$obj->{Compress} = $obj->mkComp($got)
            or return undef;
        
        *$obj->{UnCompSize} = new U64 ;
        *$obj->{CompSize} = new U64 ;

        if ( $outType eq 'buffer') {
            ${ *$obj->{Buffer} }  = ''
                unless $appendOutput ;
        }
        else {
            if ($outType eq 'handle') {
                *$obj->{FH} = $outValue ;
                setBinModeOutput(*$obj->{FH}) ;
                #$outValue->flush() ;
                *$obj->{Handle} = 1 ;
                if ($appendOutput)
                {
                    seek(*$obj->{FH}, 0, IO::Handle::SEEK_END)
                        or return $obj->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) ;

                }
            }
            elsif ($outType eq 'filename') {    
                no warnings;
                my $mode = '>' ;
                $mode = '>>'
                    if $appendOutput;
                *$obj->{FH} = new IO::File "$mode $outValue" 
                    or return $obj->saveErrorString(undef, "cannot open file '$outValue': $!", $!) ;
                *$obj->{StdIO} = ($outValue eq '-'); 
                setBinModeOutput(*$obj->{FH}) ;
            }
        }

        *$obj->{Header} = $obj->mkHeader($got) ;
        $obj->output( *$obj->{Header} )
            or return undef;
        $obj->beforePayload();
    }
    else
    {
        *$obj->{Compress} = $obj->createMerge($outValue, $outType)
            or return undef;
    }

    *$obj->{Closed} = 0 ;
    *$obj->{AutoClose} = $got->getValue('autoclose') ;
    *$obj->{Output} = $outValue;
    *$obj->{ClassName} = $class;
    *$obj->{Got} = $got;
    *$obj->{OneShot} = 0 ;

    return $obj ;
}

sub ckOutputParam 
{
    my $self = shift ;
    my $from = shift ;
    my $outType = IO::Compress::Base::Common::whatIsOutput($_[0]);

    $self->croakError("$from: output parameter not a filename, filehandle or scalar ref")
        if ! $outType ;

    #$self->croakError("$from: output filename is undef or null string")
        #if $outType eq 'filename' && (! defined $_[0] || $_[0] eq '')  ;

    $self->croakError("$from: output buffer is read-only")
        if $outType eq 'buffer' && Scalar::Util::readonly(${ $_[0] });
    
    return 1;    
}


sub _def
{
    my $obj = shift ;
    
    my $class= (caller)[0] ;
    my $name = (caller(1))[3] ;

    $obj->croakError("$name: expected at least 1 parameters\n")
        unless @_ >= 1 ;

    my $input = shift ;
    my $haveOut = @_ ;
    my $output = shift ;

    my $x = new IO::Compress::Base::Validator($class, *$obj->{Error}, $name, $input, $output)
        or return undef ;

    push @_, $output if $haveOut && $x->{Hash};

    *$obj->{OneShot} = 1 ;

    my $got = $obj->checkParams($name, undef, @_)
        or return undef ;

    $x->{Got} = $got ;

#    if ($x->{Hash})
#    {
#        while (my($k, $v) = each %$input)
#        {
#            $v = \$input->{$k} 
#                unless defined $v ;
#
#            $obj->_singleTarget($x, 1, $k, $v, @_)
#                or return undef ;
#        }
#
#        return keys %$input ;
#    }

    if ($x->{GlobMap})
    {
        $x->{oneInput} = 1 ;
        foreach my $pair (@{ $x->{Pairs} })
        {
            my ($from, $to) = @$pair ;
            $obj->_singleTarget($x, 1, $from, $to, @_)
                or return undef ;
        }

        return scalar @{ $x->{Pairs} } ;
    }

    if (! $x->{oneOutput} )
    {
        my $inFile = ($x->{inType} eq 'filenames' 
                        || $x->{inType} eq 'filename');

        $x->{inType} = $inFile ? 'filename' : 'buffer';
        
        foreach my $in ($x->{oneInput} ? $input : @$input)
        {
            my $out ;
            $x->{oneInput} = 1 ;

            $obj->_singleTarget($x, $inFile, $in, \$out, @_)
                or return undef ;

            push @$output, \$out ;
            #if ($x->{outType} eq 'array')
            #  { push @$output, \$out }
            #else
            #  { $output->{$in} = \$out }
        }

        return 1 ;
    }

    # finally the 1 to 1 and n to 1
    return $obj->_singleTarget($x, 1, $input, $output, @_);

    Carp::croak "should not be here" ;
}

sub _singleTarget
{
    my $obj             = shift ;
    my $x               = shift ;
    my $inputIsFilename = shift;
    my $input           = shift;
    
    if ($x->{oneInput})
    {
        $obj->getFileInfo($x->{Got}, $input)
            if isaScalar($input) || (isaFilename($input) and $inputIsFilename) ;

        my $z = $obj->_create($x->{Got}, @_)
            or return undef ;


        defined $z->_wr2($input, $inputIsFilename) 
            or return $z->closeError(undef) ;

        return $z->close() ;
    }
    else
    {
        my $afterFirst = 0 ;
        my $inputIsFilename = ($x->{inType} ne 'array');
        my $keep = $x->{Got}->clone();

        #for my $element ( ($x->{inType} eq 'hash') ? keys %$input : @$input)
        for my $element ( @$input)
        {
            my $isFilename = isaFilename($element);

            if ( $afterFirst ++ )
            {
                defined addInterStream($obj, $element, $isFilename)
                    or return $obj->closeError(undef) ;
            }
            else
            {
                $obj->getFileInfo($x->{Got}, $element)
                    if isaScalar($element) || $isFilename;

                $obj->_create($x->{Got}, @_)
                    or return undef ;
            }

            defined $obj->_wr2($element, $isFilename) 
                or return $obj->closeError(undef) ;

            *$obj->{Got} = $keep->clone();
        }
        return $obj->close() ;
    }

}

sub _wr2
{
    my $self = shift ;

    my $source = shift ;
    my $inputIsFilename = shift;

    my $input = $source ;
    if (! $inputIsFilename)
    {
        $input = \$source 
            if ! ref $source;
    }

    if ( ref $input && ref $input eq 'SCALAR' )
    {
        return $self->syswrite($input, @_) ;
    }

    if ( ! ref $input  || isaFilehandle($input))
    {
        my $isFilehandle = isaFilehandle($input) ;

        my $fh = $input ;

        if ( ! $isFilehandle )
        {
            $fh = new IO::File "<$input"
                or return $self->saveErrorString(undef, "cannot open file '$input': $!", $!) ;
        }
        binmode $fh if *$self->{Got}->valueOrDefault('binmodein') ;

        my $status ;
        my $buff ;
        my $count = 0 ;
        while ($status = read($fh, $buff, 16 * 1024)) {
            $count += length $buff;
            defined $self->syswrite($buff, @_) 
                or return undef ;
        }

        return $self->saveErrorString(undef, $!, $!) 
            if ! defined $status ;

        if ( (!$isFilehandle || *$self->{AutoClose}) && $input ne '-')
        {    
            $fh->close() 
                or return undef ;
        }

        return $count ;
    }

    Carp::croak "Should not be here";
    return undef;
}

sub addInterStream
{
    my $self = shift ;
    my $input = shift ;
    my $inputIsFilename = shift ;

    if (*$self->{Got}->getValue('multistream'))
    {
        $self->getFileInfo(*$self->{Got}, $input)
            #if isaFilename($input) and $inputIsFilename ;
            if isaScalar($input) || isaFilename($input) ;

        # TODO -- newStream needs to allow gzip/zip header to be modified
        return $self->newStream();
    }
    elsif (*$self->{Got}->getValue('autoflush'))
    {
        #return $self->flush(Z_FULL_FLUSH);
    }

    return 1 ;
}

sub getFileInfo
{
}

sub TIEHANDLE
{
    return $_[0] if ref($_[0]);
    die "OOPS\n" ;
}
  
sub UNTIE
{
    my $self = shift ;
}

sub DESTROY
{
    my $self = shift ;
    local ($., $@, $!, $^E, $?);
    
    $self->close() ;

    # TODO - memory leak with 5.8.0 - this isn't called until 
    #        global destruction
    #
    %{ *$self } = () ;
    undef $self ;
}



sub filterUncompressed
{
}

sub syswrite
{
    my $self = shift ;

    my $buffer ;
    if (ref $_[0] ) {
        $self->croakError( *$self->{ClassName} . "::write: not a scalar reference" )
            unless ref $_[0] eq 'SCALAR' ;
        $buffer = $_[0] ;
    }
    else {
        $buffer = \$_[0] ;
    }

    if (@_ > 1) {
        my $slen = defined $$buffer ? length($$buffer) : 0;
        my $len = $slen;
        my $offset = 0;
        $len = $_[1] if $_[1] < $len;

        if (@_ > 2) {
            $offset = $_[2] || 0;
            $self->croakError(*$self->{ClassName} . "::write: offset outside string") 
                if $offset > $slen;
            if ($offset < 0) {
                $offset += $slen;
                $self->croakError( *$self->{ClassName} . "::write: offset outside string") if $offset < 0;
            }
            my $rem = $slen - $offset;
            $len = $rem if $rem < $len;
        }

        $buffer = \substr($$buffer, $offset, $len) ;
    }

    return 0 if (! defined $$buffer || length $$buffer == 0) && ! *$self->{FlushPending};
    
#    *$self->{Pending} .= $$buffer ;
#    
#    return length $$buffer
#        if (length *$self->{Pending} < 1024 * 16 && ! *$self->{FlushPending}) ;
#
#    $$buffer = *$self->{Pending} ; 
#    *$self->{Pending} = '';
    
    if (*$self->{Encoding}) {      
        $$buffer = *$self->{Encoding}->encode($$buffer);
    }
    else {
        $] >= 5.008 and ( utf8::downgrade($$buffer, 1) 
            or Carp::croak "Wide character in " .  *$self->{ClassName} . "::write:");
    }

    $self->filterUncompressed($buffer);

    my $buffer_length = defined $$buffer ? length($$buffer) : 0 ;
    *$self->{UnCompSize}->add($buffer_length) ;

    my $outBuffer='';
    my $status = *$self->{Compress}->compr($buffer, $outBuffer) ;

    return $self->saveErrorString(undef, *$self->{Compress}{Error}, 
                                         *$self->{Compress}{ErrorNo})
        if $status == STATUS_ERROR;

    *$self->{CompSize}->add(length $outBuffer) ;

    $self->outputPayload($outBuffer)
        or return undef;

    return $buffer_length;
}

sub print
{
    my $self = shift;

    #if (ref $self) {
    #    $self = *$self{GLOB} ;
    #}

    if (defined $\) {
        if (defined $,) {
            defined $self->syswrite(join($,, @_) . $\);
        } else {
            defined $self->syswrite(join("", @_) . $\);
        }
    } else {
        if (defined $,) {
            defined $self->syswrite(join($,, @_));
        } else {
            defined $self->syswrite(join("", @_));
        }
    }
}

sub printf
{
    my $self = shift;
    my $fmt = shift;
    defined $self->syswrite(sprintf($fmt, @_));
}

sub _flushCompressed
{
    my $self = shift ;

    my $outBuffer='';
    my $status = *$self->{Compress}->flush($outBuffer, @_) ;
    return $self->saveErrorString(0, *$self->{Compress}{Error}, 
                                    *$self->{Compress}{ErrorNo})
        if $status == STATUS_ERROR;

    if ( defined *$self->{FH} ) {
        *$self->{FH}->clearerr();
    }

    *$self->{CompSize}->add(length $outBuffer) ;

    $self->outputPayload($outBuffer)
        or return 0;
    return 1;        
}

sub flush
{   
    my $self = shift ;

    $self->_flushCompressed(@_)
        or return 0;        

    if ( defined *$self->{FH} ) {
        defined *$self->{FH}->flush()
            or return $self->saveErrorString(0, $!, $!); 
    }

    return 1;
}

sub beforePayload
{
}

sub _newStream
{
    my $self = shift ;
    my $got  = shift;

    my $class = ref $self;

    $self->_writeTrailer()
        or return 0 ;

    $self->ckParams($got)
        or $self->croakError("newStream: $self->{Error}");

    if ($got->getValue('encode')) { 
        my $want_encoding = $got->getValue('encode');
        *$self->{Encoding} = IO::Compress::Base::Common::getEncoding($self, $class, $want_encoding);
    }
    else {
        *$self->{Encoding} = undef;
    }
    
    *$self->{Compress} = $self->mkComp($got)
        or return 0;

    *$self->{Header} = $self->mkHeader($got) ;
    $self->output(*$self->{Header} )
        or return 0;
    
    *$self->{UnCompSize}->reset();
    *$self->{CompSize}->reset();

    $self->beforePayload();

    return 1 ;
}

sub newStream
{
    my $self = shift ;
  
    my $got = $self->checkParams('newStream', *$self->{Got}, @_)
        or return 0 ;    

    $self->_newStream($got);

#    *$self->{Compress} = $self->mkComp($got)
#        or return 0;
#
#    *$self->{Header} = $self->mkHeader($got) ;
#    $self->output(*$self->{Header} )
#        or return 0;
#    
#    *$self->{UnCompSize}->reset();
#    *$self->{CompSize}->reset();
#
#    $self->beforePayload();
#
#    return 1 ;
}

sub reset
{
    my $self = shift ;
    return *$self->{Compress}->reset() ;
}

sub _writeTrailer
{
    my $self = shift ;

    my $trailer = '';

    my $status = *$self->{Compress}->close($trailer) ;
    return $self->saveErrorString(0, *$self->{Compress}{Error}, *$self->{Compress}{ErrorNo})
        if $status == STATUS_ERROR;

    *$self->{CompSize}->add(length $trailer) ;

    $trailer .= $self->mkTrailer();
    defined $trailer
      or return 0;

    return $self->output($trailer);
}

sub _writeFinalTrailer
{
    my $self = shift ;

    return $self->output($self->mkFinalTrailer());
}

sub close
{
    my $self = shift ;
    return 1 if *$self->{Closed} || ! *$self->{Compress} ;
    *$self->{Closed} = 1 ;

    untie *$self 
        if $] >= 5.008 ;

    *$self->{FlushPending} = 1 ;
    $self->_writeTrailer()
        or return 0 ;

    $self->_writeFinalTrailer()
        or return 0 ;

    $self->output( "", 1 )
        or return 0;

    if (defined *$self->{FH}) {

        if ((! *$self->{Handle} || *$self->{AutoClose}) && ! *$self->{StdIO}) {
            $! = 0 ;
            *$self->{FH}->close()
                or return $self->saveErrorString(0, $!, $!); 
        }
        delete *$self->{FH} ;
        # This delete can set $! in older Perls, so reset the errno
        $! = 0 ;
    }

    return 1;
}


#sub total_in
#sub total_out
#sub msg
#
#sub crc
#{
#    my $self = shift ;
#    return *$self->{Compress}->crc32() ;
#}
#
#sub msg
#{
#    my $self = shift ;
#    return *$self->{Compress}->msg() ;
#}
#
#sub dict_adler
#{
#    my $self = shift ;
#    return *$self->{Compress}->dict_adler() ;
#}
#
#sub get_Level
#{
#    my $self = shift ;
#    return *$self->{Compress}->get_Level() ;
#}
#
#sub get_Strategy
#{
#    my $self = shift ;
#    return *$self->{Compress}->get_Strategy() ;
#}


sub tell
{
    my $self = shift ;

    return *$self->{UnCompSize}->get32bit() ;
}

sub eof
{
    my $self = shift ;

    return *$self->{Closed} ;
}


sub seek
{
    my $self     = shift ;
    my $position = shift;
    my $whence   = shift ;

    my $here = $self->tell() ;
    my $target = 0 ;

    #use IO::Handle qw(SEEK_SET SEEK_CUR SEEK_END);
    use IO::Handle ;

    if ($whence == IO::Handle::SEEK_SET) {
        $target = $position ;
    }
    elsif ($whence == IO::Handle::SEEK_CUR || $whence == IO::Handle::SEEK_END) {
        $target = $here + $position ;
    }
    else {
        $self->croakError(*$self->{ClassName} . "::seek: unknown value, $whence, for whence parameter");
    }

    # short circuit if seeking to current offset
    return 1 if $target == $here ;    

    # Outlaw any attempt to seek backwards
    $self->croakError(*$self->{ClassName} . "::seek: cannot seek backwards")
        if $target < $here ;

    # Walk the file to the new offset
    my $offset = $target - $here ;

    my $buffer ;
    defined $self->syswrite("\x00" x $offset)
        or return 0;

    return 1 ;
}

sub binmode
{
    1;
#    my $self     = shift ;
#    return defined *$self->{FH} 
#            ? binmode *$self->{FH} 
#            : 1 ;
}

sub fileno
{
    my $self     = shift ;
    return defined *$self->{FH} 
            ? *$self->{FH}->fileno() 
            : undef ;
}

sub opened
{
    my $self     = shift ;
    return ! *$self->{Closed} ;
}

sub autoflush
{
    my $self     = shift ;
    return defined *$self->{FH} 
            ? *$self->{FH}->autoflush(@_) 
            : undef ;
}

sub input_line_number
{
    return undef ;
}


sub _notAvailable
{
    my $name = shift ;
    return sub { Carp::croak "$name Not Available: File opened only for output" ; } ;
}

*read     = _notAvailable('read');
*READ     = _notAvailable('read');
*readline = _notAvailable('readline');
*READLINE = _notAvailable('readline');
*getc     = _notAvailable('getc');
*GETC     = _notAvailable('getc');

*FILENO   = \&fileno;
*PRINT    = \&print;
*PRINTF   = \&printf;
*WRITE    = \&syswrite;
*write    = \&syswrite;
*SEEK     = \&seek; 
*TELL     = \&tell;
*EOF      = \&eof;
*CLOSE    = \&close;
*BINMODE  = \&binmode;

#*sysread  = \&_notAvailable;
#*syswrite = \&_write;

1; 

__END__

=head1 NAME

IO::Compress::Base - Base Class for IO::Compress modules 

=head1 SYNOPSIS

    use IO::Compress::Base ;

=head1 DESCRIPTION

This module is not intended for direct use in application code. Its sole
purpose is to be sub-classed by IO::Compress modules.

=head1 SEE ALSO

L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Uncompress::Gunzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzma>, L<IO::Uncompress::UnLzma>, L<IO::Compress::Xz>, L<IO::Uncompress::UnXz>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress>

L<IO::Compress::FAQ|IO::Compress::FAQ>

L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>,
L<Archive::Tar|Archive::Tar>,
L<IO::Zlib|IO::Zlib>

=head1 AUTHOR

This module was written by Paul Marquess, C<pmqs@cpan.org>. 

=head1 MODIFICATION HISTORY

See the Changes file.

=head1 COPYRIGHT AND LICENSE

Copyright (c) 2005-2017 Paul Marquess. All rights reserved.

This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
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