Perl::Critic::Policy::RegularExpressions::ProhibitCaptureWithoutTest.3pm

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Version: 2008-03-08 (mandriva - 01/05/08)

Section: 3 (Bibliothèques de fonctions)

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NAME

Perl::Critic::Policy::RegularExpressions::ProhibitCaptureWithoutTest

DESCRIPTION

If a regexp match fails, then any capture variables ($1, $2, ...) will be undefined. Therefore it's important to check the return value of a match before using those variables.

This policy checks that capture variables are inside a conditional and do not follow an regexps.

This policy does not check whether that conditional is actually testing a regexp result, nor does it check whether a regexp actually has a capture in it. Those checks are too hard.

AUTHOR

Chris Dolan <cdolan@cpan.org> Copyright (C) 2006 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.