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.
