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Perl::Critic::Policy::UsereContributed:PerlcDocumentales::ProhibitMatchVars(3)

NAME
       Perl::Critic::Policy::Variables::ProhibitMatchVars - Avoid "$`",	"$&",
       "$'" and	their English equivalents.

AFFILIATION
       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION
       Using the "match	variables" "$`", $&, and/or "$'" can significantly
       degrade the performance of a program.  This policy forbids using	them
       or their	English	equivalents.  See perldoc English or PBP page 82 for
       more information.

       It used to forbid plain "use English;" because it ends up causing the
       performance side-effects	of the match variables.	 However, the message
       emitted for that	situation was not at all clear and there is now
       Perl::Critic::Policy::Modules::RequireNoMatchVarsWithUseEnglish,	which
       addresses this situation	directly.

CONFIGURATION
       This Policy is not configurable except for the standard options.

AUTHOR
       Chris Dolan <cdolan@cpan.org>

COPYRIGHT
       Copyright (c) 2006-2011 Chris Dolan.

       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 v5.24.1		 Perl::Critic::Policy::Variables::ProhibitMatchVars(3)

NAME | AFFILIATION | DESCRIPTION | CONFIGURATION | AUTHOR | COPYRIGHT

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