Perl::Critic::Policy::RegularExpressions::RequireExtendedFormatting
Extended regular expression formatting allows you mix whitespace and comments into the pattern, thus making them much more readable.
# Match a single-quoted string efficiently... m{'[^\\']*(?:\\.[^\\']*)*'}; #Huh? #Same thing with extended format... m{ ' #an opening single quote [^\\'] #any non-special chars (i.e. not backslash or single quote) (?: #then all of... \\ . # any explicitly backslashed char [^\\']* # followed by an non-special chars )* #...repeated zero or more times ' # a closing single quote }x;
For common regular expressions like e-mail addresses, phone numbers, dates, etc., have a look at the Regex::Common module. Also, be cautions 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.
Jeffrey Ryan Thalhammer <thaljef@cpan.org>
Copyright (c) 2005-2007 Jeffrey Ryan Thalhammer. 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.
To install Perl::Critic, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Perl::Critic
CPAN shell
perl -MCPAN -e shell install Perl::Critic
For more information on module installation, please visit the detailed CPAN module installation guide.