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[dh-make-perl] / dev / i386 / libperl-critic-perl / libperl-critic-perl-1.088 / lib / Perl / Critic / Policy / RegularExpressions / ProhibitUnusualDelimiters.pm

diff --git a/dev/i386/libperl-critic-perl/libperl-critic-perl-1.088/lib/Perl/Critic/Policy/RegularExpressions/ProhibitUnusualDelimiters.pm b/dev/i386/libperl-critic-perl/libperl-critic-perl-1.088/lib/Perl/Critic/Policy/RegularExpressions/ProhibitUnusualDelimiters.pm
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+##############################################################################
+#      $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/Perl-Critic/lib/Perl/Critic/Policy/RegularExpressions/ProhibitUnusualDelimiters.pm $
+#     $Date: 2008-07-03 10:19:10 -0500 (Thu, 03 Jul 2008) $
+#   $Author: clonezone $
+# $Revision: 2489 $
+##############################################################################
+
+package Perl::Critic::Policy::RegularExpressions::ProhibitUnusualDelimiters;
+
+use 5.006001;
+use strict;
+use warnings;
+use Readonly;
+
+use English qw(-no_match_vars);
+use Carp;
+
+use Perl::Critic::Utils qw{ :booleans :severities hashify };
+use Perl::Critic::Utils::PPIRegexp qw{ get_delimiters };
+use base 'Perl::Critic::Policy';
+
+our $VERSION = '1.088';
+
+#-----------------------------------------------------------------------------
+
+Readonly::Scalar my $DESC => q<Use only '//' or '{}' to delimit regexps>;
+Readonly::Scalar my $EXPL => [246];
+
+Readonly::Array my @EXTRA_BRACKETS => qw{ () [] <> };
+
+#-----------------------------------------------------------------------------
+
+sub supported_parameters {
+    return (
+        {
+            name               => 'allow_all_brackets',
+            description        =>
+                q[In addition to allowing '{}', allow '()', '[]', and '{}'.],
+            behavior           => 'boolean',
+        },
+    );
+}
+
+sub default_severity     { return $SEVERITY_LOWEST        }
+sub default_themes       { return qw( core pbp cosmetic ) }
+sub applies_to           { return qw(PPI::Token::Regexp::Match
+                                     PPI::Token::Regexp::Substitute
+                                     PPI::Token::QuoteLike::Regexp) }
+
+#-----------------------------------------------------------------------------
+
+sub initialize_if_enabled {
+    my ( $self, $config ) = @_;
+
+    my %delimiters = hashify( qw< // {} > );
+    if ( $self->{_allow_all_brackets} ) {
+        @delimiters{ @EXTRA_BRACKETS } = (1) x @EXTRA_BRACKETS;
+    }
+
+    $self->{_allowed_delimiters} = \%delimiters;
+
+    return $TRUE;
+}
+
+#-----------------------------------------------------------------------------
+
+sub violates {
+    my ( $self, $elem, undef ) = @_;
+
+    my $allowed_delimiters = $self->{_allowed_delimiters};
+    foreach my $delimiter (get_delimiters($elem)) {
+        next if $allowed_delimiters->{$delimiter};
+        return $self->violation( $DESC, $EXPL, $elem );
+    }
+
+    return;  # OK
+}
+
+1;
+
+__END__
+
+#-----------------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+Perl::Critic::Policy::RegularExpressions::ProhibitUnusualDelimiters - Use only C<//> or C<{}> to delimit regexps.
+
+
+=head1 AFFILIATION
+
+This Policy is part of the core L<Perl::Critic> distribution.
+
+
+=head1 DESCRIPTION
+
+Perl lets you delimit regular expressions with almost any character,
+but most choices are illegible.  Compare these equivalent expressions:
+
+  s/foo/bar/;   # good
+  s{foo}{bar};  # good
+  s#foo#bar#;   # bad
+  s;foo;bar;;   # worse
+  s|\|\||\||;   # eye-gouging bad
+
+
+=head1 CONFIGURATION
+
+There is one option for this policy, C<allow_all_brackets>.  If this
+is true, then, in addition to allowing C<//> and C<{}>, the other
+matched pairs of C<()>, C<[]>, and C<< <> >> are allowed.
+
+
+=head1 CREDITS
+
+Initial development of this policy was supported by a grant from the
+Perl Foundation.
+
+
+=head1 AUTHOR
+
+Chris Dolan <cdolan@cpan.org>
+
+
+=head1 COPYRIGHT
+
+Copyright (c) 2007-2008 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
+
+=cut
+
+# Local Variables:
+#   mode: cperl
+#   cperl-indent-level: 4
+#   fill-column: 78
+#   indent-tabs-mode: nil
+#   c-indentation-style: bsd
+# End:
+# ex: set ts=8 sts=4 sw=4 tw=78 ft=perl expandtab shiftround :