/usr/local/perl/lib/site_perl/5.8.5/Perl/Critic/Policy/RegularExpressions/ProhibitCaptureWithoutTest.pm



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

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.

 /usr/local/perl/lib/site_perl/5.8.5/Perl/Critic/Policy/RegularExpressions/ProhibitCaptureWithoutTest.pm