1PAR::Filter(3)        User Contributed Perl Documentation       PAR::Filter(3)
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NAME

6       PAR::Filter - Input filter for PAR
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SYNOPSIS

9           $code = 'use strict; print "Hello, World!\n";';
10           $ref = PAR::Filter->new('PodStrip', 'Bleach')->apply(\$code);
11           print $code;    # pod-stripped and obfuscated code
12           print $$ref;    # same thing
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14           $ref = PAR::Filter->new('PodStrip', 'Bleach')->apply('file.pl');
15           print $$ref;    # same thing, applied to file.pl
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DESCRIPTION

18       Starting with PAR 0.76, "pp -f" takes a filter name, like "Bleach", and
19       invokes this module to transform the programs with PAR::Filter::Bleach.
20       Similarly, "pp -F Bleach" applies the Bleach filter to all included
21       modules.
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23       It is possible to pass in multiple such filters, which are applied in
24       turn.
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26       The output of each such filter is expected be semantically equivalent
27       to the input, although possibly obfuscated.
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29       The default list of filters include:
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31       •   PAR::Filter::Bleach
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33           The archetypical obfuscating filter.
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35       •   PAR::Filter::Obfuscate
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37           Use B::Deobfuscate to strip away indents and comments, as well as
38           mangling variable names.
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40       •   PAR::Filter::PatchContent
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42           Fix PAR-incompatible modules, applied to modules by default.
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44       •   PAR::Filter::PodStrip
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46           Strip away POD sections, applied to modules by default.
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48       •   PAR::Filter::Bytecode
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50           Use B::Bytecode to strip away indents and comments.  This filter is
51           deprecated! For source hiding, have a look at PAR::Filter::Crypto
52           instead and make sure to read about its caveats.
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AUTHORS

55       Audrey Tang <cpan@audreyt.org>
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58       Copyright 2003-2009 by Audrey Tang <cpan@audreyt.org>.
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60       This program is free software; you can redistribute it and/or modify it
61       under the same terms as Perl itself.
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63       See LICENSE.
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67perl v5.38.2                      2023-11-30                    PAR::Filter(3)
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