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lib/IO/Compress/Base.pm  view on Meta::CPAN

                        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} = IO::File->new( "$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 $x = IO::Compress::Base::Validator->new($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 ;