NAME¶
Perl::Critic::Policy::Modules::RequireNoMatchVarsWithUseEnglish - "use
English" must be passed a "-no_match_vars" argument.
AFFILIATION¶
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION¶
Due to unfortunate history, if you use the English module but don't 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 aren't loaded into your
namespace, they are still created in the "English" namespace and you
still pay the cost.
CONFIGURATION¶
This Policy is not configurable except for the standard options.
AUTHOR¶
Elliot Shank "<perl@galumph.com>"
COPYRIGHT¶
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.