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Perl::Critic::Policy::ValuesAndExpressions::RequireInterpolationOfMetachars.3pm
Langue: en
Version: 2010-09-08 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
Perl::Critic::Policy::ValuesAndExpressions::RequireInterpolationOfMetachars - Warns that you might have used single quotes when you really wanted double-quotes.AFFILIATION
This Policy is part of the core Perl::Critic distribution.DESCRIPTION
This policy warns you if you use single-quotes or "q//" with a string that has unescaped metacharacters that may need interpolation. Its hard to know for sure if a string really should be interpolated without looking into the symbol table. This policy just makes an educated guess by looking for metacharacters and sigils which usually indicate that the string should be interpolated.Exceptions
- *
- "${}" and "@{}" in a "use overload",
use overload '${}' => \&deref, # ok '@{}' => \&arrayize; # ok
- *
- Variable names to "use vars".
use vars '$x'; # ok use vars ('$y', '$z'); # ok use vars qw< $a $b >; # ok
- *
- Email addresses, if you have Email::Address installed.
CONFIGURATION
The "rcs_keywords" option allows you to stop this policy from complaining about things that look like RCS variables, for example, in deriving values for $VERSION variables.For example, if you've got code like
our ($VERSION) = (q<$Revision: 3809 $> =~ m/(\d+)/mx);
You can specify
[ValuesAndExpressions::RequireInterpolationOfMetachars] rcs_keywords = Revision
in your .perlcriticrc to provide an exemption.
NOTES
Perl's own "warnings" pragma also warns you about this.TODO
Handle email addresses.SEE ALSO
Perl::Critic::Policy::ValuesAndExpressions::ProhibitInterpolationOfLiteralsAUTHOR
Jeffrey Ryan Thalhammer <thaljef@cpan.org>COPYRIGHT
Copyright (c) 2005-2009 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.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre