Perl::Critic::Policy::ValuesAndExpressions::ProhibitNoisyQuotes - Use C<q{}> or C<qq{}> instead of quotes for awkward-looking strings.

Perl-Critic documentation Contained in the Perl-Critic distribution.

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NAME

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Perl::Critic::Policy::ValuesAndExpressions::ProhibitNoisyQuotes - Use q{} or qq{} instead of quotes for awkward-looking strings.

AFFILIATION

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

DESCRIPTION

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Don't use quotes for one or two-character strings of non-alphanumeric characters (i.e. noise). These tend to be hard to read. For legibility, use q{} or a named value. However, braces, parentheses, and brackets tend do to look better in quotes, so those are allowed.

    $str = join ',', @list;     #not ok
    $str = join ",", @list;     #not ok
    $str = join q{,}, @list;    #better

    $COMMA = q{,};
    $str = join $COMMA, @list;  #best

    $lbrace = '(';          #ok
    $rbrace = ')';          #ok
    print '(', @list, ')';  #ok

CONFIGURATION

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This Policy is not configurable except for the standard options.

SEE ALSO

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Perl::Critic::Policy::ValuesAndExpressions::ProhibitEmptyQuotes

AUTHOR

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Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

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Copyright (c) 2005-2011 Imaginative Software Systems. 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.

Perl-Critic documentation Contained in the Perl-Critic distribution. 
##############################################################################
#      $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/distributions/Perl-Critic/lib/Perl/Critic/Policy/ValuesAndExpressions/ProhibitNoisyQuotes.pm $
#     $Date: 2011-05-15 16:34:46 -0500 (Sun, 15 May 2011) $
#   $Author: clonezone $
# $Revision: 4078 $
##############################################################################

package Perl::Critic::Policy::ValuesAndExpressions::ProhibitNoisyQuotes;

use 5.006001;
use strict;
use warnings;
use Readonly;

use Perl::Critic::Utils qw{ :severities };
use base 'Perl::Critic::Policy';

our $VERSION = '1.116';

#-----------------------------------------------------------------------------

Readonly::Scalar my $NOISE_RX => qr{\A ["']  [^ \w () {} [\] <> ]{1,2}  ['"] \z}xms;
Readonly::Scalar my $DESC     => q{Quotes used with a noisy string};
Readonly::Scalar my $EXPL     => [ 53 ];

#-----------------------------------------------------------------------------

sub supported_parameters { return ()                    }
sub default_severity     { return $SEVERITY_LOW         }
sub default_themes       { return qw(core pbp cosmetic) }
sub applies_to           { return qw(PPI::Token::Quote::Double
                                     PPI::Token::Quote::Single) }

#-----------------------------------------------------------------------------

sub violates {
    my ( $self, $elem, undef ) = @_;
    return if $elem !~ $NOISE_RX;
    my $statement = $elem->statement;
    return if $statement
        && $statement->isa('PPI::Statement::Include')
        && $statement->type eq 'use'
        && $statement->module eq 'overload';
    return $self->violation( $DESC, $EXPL, $elem );
}

1;

__END__

#-----------------------------------------------------------------------------


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