Manual Reference Pages - PERL::CRITIC::POLICY::MODULES::REQUIRENOMATCHVARSWITHUSEENGLISH (3)
Perl::Critic::Policy::Modules::RequireNoMatchVarsWithUseEnglish - "use English" must be passed a "-no_match_vars" argument.
This Policy is part of the core Perl::Critic
Due to unfortunate history, if you use the English module
but dont pass in a -no_match_vars argument, all regular
expressions in the entire program, not merely the module in question,
suffer a significant performance penalty, even if you only import a
subset of the variables.
use English; # not ok
use English -no_match_vars; # ok
use English qw< $ERRNO -no_match_vars >; # ok
use English qw($OS_ERROR); # not ok
In the last example above, while the match variables arent loaded
into your namespace, they are still created in the English
namespace and you still pay the cost.
This Policy is not configurable except for the standard options.
Elliot Shank <email@example.com>
Copyright (c) 2008-2011 Elliot Shank.
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.
|perl v5.20.3 ||PERL::CRITIC::POLICY::MODULES::REQUIRENOMATCHVARSWITHUSEENGLISH (3) ||2016-04-03 |
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