use Filter::Handle;

    my $f = Filter::Handle->new(\*STDOUT);
    print "Foo";
    print "Bar";

##</code><code>##


    package Filter::Handle;
    use strict;

    sub new {
        my $class = shift;
        my $fh    = shift;
        tie *{$fh}, 'Filter::Handle::Tie', $fh;
        bless { fh => $fh }, $class;
    }

    sub DESTROY {
        my $self = shift;
        my $fh   = $self->{fh};
        undef $self;
        { local $^W = 0; untie *{$fh} }
    }


    package Filter::Handle::Tie;
    use vars qw/@ISA/;
    use Tie::Handle; @ISA = qw/Tie::Handle/;

    sub TIEHANDLE {
        my $class = shift;
        my $fh    = shift;
        bless { fh => $fh }, $class;
    }

    sub PRINT {
        my $self   = shift;
        my $fh     = $self->{fh};
        my($file, $line) = (caller)[1,2];
        { local $^W = 0; untie *{$fh} }
        print $fh sprintf "%s:%d - %s\n",
            $file, $line, join ' ', @_;
        tie *{$fh}, __PACKAGE__, $fh;
    }

    1;