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This software allows you to 'grep' through Perl documents.  Further, you can
specify which I<parts> of the documents you wish to search through.  While you
can use the class API directly, generally you'll use the C<grepl> program
which is automatically installed.  For example, to search all comments for
'XXX' or 'xxx':

 grepl --dir lib/ --pattern '(?i:XXX)' --search comments

See C<perldoc grepl> for more examples of that interface.

See L<Allowed Tokens> for what you can search through.  This will be expanded
as time goes on.  Patches very welcome.

=head1 METHODS

=head2 Class Methods

=head3 C<new>

    my $grepl = App::Grepl->new( {
        dir     => $some_dir,