Perl::Critic::Policy::RegularExpressions::ProhibitSingleCharAlternation - Use [abc] instead of a|b|c.
[abc]
a|b|c
This Policy is part of the core Perl::Critic distribution.
Character classes (like [abc]) are significantly faster than single character alternations (like (?:a|b|c)). This policy complains if you have more than one instance of a single character in an alternation. So (?:a|the) is allowed, but (?:a|e|i|o|u) is not.
(?:a|b|c)
(?:a|the)
(?:a|e|i|o|u)
This Policy is not configurable except for the standard options.
Initial development of this policy was supported by a grant from the Perl Foundation.
Chris Dolan <cdolan@cpan.org>
Copyright (c) 2007-2023 Chris Dolan
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.