noble (3) Perl::Critic::Policy::RegularExpressions::ProhibitEnumeratedClasses.3pm.gz

Provided by: libperl-critic-perl_1.152-1_all bug

NAME
       Perl::Critic::Policy::RegularExpressions::ProhibitEnumeratedClasses - Use named character classes instead
       of explicit character lists.


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


DESCRIPTION
       This policy is not for everyone!  If you are working in pure ASCII, then disable it now or you may see
       some false violations.

       On the other hand many of us are working in a multilingual world with an extended character set, probably
       Unicode.  In that world, patterns like "m/[A-Z]/" can be a source of bugs when you really meant
       "m/\p{IsUpper}/".  This policy catches a selection of possible incorrect character class usage.

       Specifically, the patterns are:

       "[\t\r\n\f\ ]" vs. "\s"

       "[\t\r\n\ ]" vs. "\s"   (because many people forget "\f")

       "[A-Za-z0-9_]" vs. "\w"

       "[A-Za-z]" vs. "\p{IsAlphabetic}"

       "[A-Z]" vs. "\p{IsUpper}"

       "[a-z]" vs. "\p{IsLower}"

       "[0-9]" vs. "\d"

       "[^\w]" vs. "\W"

       "[^\s]" vs. "\S"


CONFIGURATION
       This Policy is not configurable except for the standard options.


CREDITS
       Initial development of this policy was supported by a grant from the Perl Foundation.


AUTHOR
       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

perl v5.36.0                            Perl::Critic::Policy::RegularExpressions::ProhibitEnumeratedClasses(3pm)