• NAME
• SYNOPSIS
• DESCRIPTION
• AUTHORS
• COPYRIGHT

NAME

PAR::Filter - Input filter for PAR

SYNOPSIS

    $code = 'use strict; print "Hello, World!\n";';
    $ref = PAR::Filter->new('PodStrip', 'Bleach')->apply(\$code);
    print $code;    # pod-stripped and obfuscated code
    print $$ref;    # same thing

    $ref = PAR::Filter->new('PodStrip', 'Bleach')->apply('file.pl');
    print $$ref;    # same thing, applied to file.pl

DESCRIPTION

Starting with PAR 0.76, pp -f takes a filter name, like Bleach, and invokes this module to transform the programs with the PAR::Filter::Bleach manpage. Similarily, pp -F Bleach applies the Bleach filter to all included modules.

It is possible to pass in multiple such filters, which are applied in turn.

The output of each such filter is expected be semantically equivalent to the input, although possibly obfuscated.

The default list of filters include:

• the PAR::Filter::Bleach manpage
  
The archetypical obfuscating filter.
• the PAR::Filter::Obfuscate manpage
  
Use the B::Deobfuscate manpage to strip away indents and comments, as well as mangling variable names.
• the PAR::Filter::PatchContent manpage
  
Fix PAR-incompatible modules, applied to modules by default.
• the PAR::Filter::PodStrip manpage
  
Strip away POD sections, applied to modules by default.
• the PAR::Filter::Bytecode manpage
  
Use the B::Bytecode manpage to strip away indents and comments. This filter is deprecated! For source hiding, have a look at the PAR::Filter::Crypto manpage instead and make sure to read about its caveats.

AUTHORS

Audrey Tang <cpan@audreyt.org>

COPYRIGHT

Copyright 2003-2008 by Audrey Tang <cpan@audreyt.org>.

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

See http://www.perl.com/perl/misc/Artistic.html