| Perl::Critic::Policy::RegularExpressions::ProhibitSingleCharAlternation(3pm) | User Contributed Perl Documentation | Perl::Critic::Policy::RegularExpressions::ProhibitSingleCharAlternation(3pm) |
Perl::Critic::Policy::RegularExpressions::ProhibitSingleCharAlternation - Use "[abc]" instead of "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.
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) 2007-2022 Chris Dolan. Many 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
| 2023-01-15 | perl v5.36.0 |