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        :                          length ''.`$cmd`;

    if ($diff) {
        warn "$self->cmd $file1_q $file2_q\n" if $self->verbose;
        return ( $diff, "$self->cmd $file1_q $file2_q" );
    }

    return;
}

sub shell_quote {
    my ($text) = @_;

    if ($text =~ /[\s$|><;#]/xms) {
        $text =~ s/'/'\\''/gxms;
        $text = "'$text'";
    }

    return $text;
}

sub basename {
    my ($self, $dir, $file) = @_;
    $file =~ s{^$dir/?}{};
    return $file;
}

1;

__END__

=head1 NAME

App::diffdir - Compares two or more directories for files that differ

=head1 VERSION

This documentation refers to App::diffdir version 0.9

=head1 SYNOPSIS

   use App::diffdir;

   # Brief but working code example(s) here showing the most common usage(s)
   # This section will be as far as many users bother reading, so make it as
   # educational and exemplary as possible.


=head1 DESCRIPTION

=head1 SUBROUTINES/METHODS

=head1 DIAGNOSTICS

=head1 CONFIGURATION AND ENVIRONMENT

=head1 DEPENDENCIES

=head1 INCOMPATIBILITIES

=head1 BUGS AND LIMITATIONS

There are no known bugs in this module.

Please report problems to Ivan Wills (ivan.wills@gmail.com).

Patches are welcome.

=head1 AUTHOR

Ivan Wills - (ivan.wills@gmail.com)

=head1 LICENSE AND COPYRIGHT

Copyright (c) 2015 Ivan Wills (14 Mullion Close, Hornsby Heights, NSW Australia 2077).
All rights reserved.

This module is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. See L<perlartistic>.  This program is
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

=cut