Perl::Critic::Policy::Variables::ProhibitMatchVars - Avoid $`, $&, $' and their English equivalents.
$`
$&
$'
This Policy is part of the core Perl::Critic distribution.
Using the "match variables" $`, $&, and/or $' can significantly degrade the performance of a program. This policy forbids using them or their English equivalents. It also forbids plain use English; so you should instead employ use English '-no_match_vars'; which avoids the match variables. See perldoc English or PBP page 82 for more information.
use English;
use English '-no_match_vars';
This Policy is not configurable except for the standard options.
Chris Dolan <cdolan@cpan.org>
Copyright (c) 2006-2008 Chris Dolan. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module.
To install Perl::Critic, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Perl::Critic
CPAN shell
perl -MCPAN -e shell install Perl::Critic
For more information on module installation, please visit the detailed CPAN module installation guide.