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
PAR::Filter::Bleach. 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:
- •
- PAR::Filter::Bleach
The archetypical obfuscating filter.
- •
- PAR::Filter::Obfuscate
Use B::Deobfuscate to strip away indents and comments, as well as mangling
variable names.
- •
- PAR::Filter::PatchContent
Fix PAR-incompatible modules, applied to modules by default.
- •
- PAR::Filter::PodStrip
Strip away POD sections, applied to modules by default.
- •
- PAR::Filter::Bytecode
Use B::Bytecode to strip away indents and comments. This filter is
deprecated! For source hiding, have a look at PAR::Filter::Crypto
instead and make sure to read about its caveats.
AUTHORS¶
Audrey Tang <cpan@audreyt.org>
COPYRIGHT¶
Copyright 2003-2009 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>