Jeffrey Ryan Thalhammer > Perl-Critic-1.120 > Perl::Critic::Policy::RegularExpressions::RequireDotMatchAnything

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Module Version: 1.120   Source   Latest Release: Perl-Critic-1.122

NAME ^

Perl::Critic::Policy::RegularExpressions::RequireDotMatchAnything - Always use the /s modifier with regular expressions.

AFFILIATION ^

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

DESCRIPTION ^

When asked what . in a regular expression means, most people will say that it matches any character, which isn't true. It's actually shorthand for [^\n]. Using the s modifier makes . act like people expect it to.

    my $match = m< foo.bar >xm;  # not ok
    my $match = m< foo.bar >xms; # ok

CONFIGURATION ^

This Policy is not configurable except for the standard options.

NOTES ^

Be cautious about slapping modifier flags onto existing regular expressions, as they can drastically alter their meaning. See http://www.perlmonks.org/?node_id=484238 for an interesting discussion on the effects of blindly modifying regular expression flags.

AUTHOR ^

Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT ^

Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.

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.

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