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

diff --git a/dev/i386/libperl-critic-perl/libperl-critic-perl-1.088/lib/Perl/Critic/Policy/BuiltinFunctions/ProhibitStringySplit.pm b/dev/i386/libperl-critic-perl/libperl-critic-perl-1.088/lib/Perl/Critic/Policy/BuiltinFunctions/ProhibitStringySplit.pm
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+##############################################################################
+#      $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/Perl-Critic/lib/Perl/Critic/Policy/BuiltinFunctions/ProhibitStringySplit.pm $
+#     $Date: 2008-07-03 10:19:10 -0500 (Thu, 03 Jul 2008) $
+#   $Author: clonezone $
+# $Revision: 2489 $
+##############################################################################
+
+package Perl::Critic::Policy::BuiltinFunctions::ProhibitStringySplit;
+
+use 5.006001;
+use strict;
+use warnings;
+use Readonly;
+
+use Perl::Critic::Utils qw{ :characters :severities :classification :ppi };
+use base 'Perl::Critic::Policy';
+
+our $VERSION = '1.088';
+
+#-----------------------------------------------------------------------------
+
+Readonly::Scalar my $DESC => q{String delimiter used with "split"};
+Readonly::Scalar my $EXPL => q{Express it as a regex instead};
+
+#-----------------------------------------------------------------------------
+
+sub supported_parameters { return ()                    }
+sub default_severity     { return $SEVERITY_LOW         }
+sub default_themes       { return qw(core pbp cosmetic) }
+sub applies_to           { return 'PPI::Token::Word'    }
+
+#-----------------------------------------------------------------------------
+
+sub violates {
+    my ( $self, $elem, undef ) = @_;
+
+    return if $elem ne 'split';
+    return if ! is_function_call($elem);
+
+    my @args = parse_arg_list($elem);
+    my $pattern = @args ? $args[0]->[0] : return;
+
+    if ( $pattern->isa('PPI::Token::Quote') && $pattern->string() ne $SPACE ) {
+        return $self->violation( $DESC, $EXPL, $elem );
+    }
+
+    return;  #ok
+}
+
+
+1;
+
+__END__
+
+#-----------------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+Perl::Critic::Policy::BuiltinFunctions::ProhibitStringySplit - Write C<split /-/, $string> instead of C<split '-', $string>.
+
+=head1 AFFILIATION
+
+This Policy is part of the core L<Perl::Critic> distribution.
+
+
+=head1 DESCRIPTION
+
+The C<split> function always interprets the PATTERN argument as a
+regular expression, even if you specify it as a string.  This causes
+much confusion if the string contains regex metacharacters.  So for
+clarity, always express the PATTERN argument as a regex.
+
+  $string = 'Fred|Barney';
+  @names = split '|', $string; #not ok, is ('F', 'r', 'e', 'd', '|', 'B', 'a' ...)
+  @names = split m/[|]/, $string; #ok, is ('Fred', Barney')
+
+When the PATTERN is a single space the C<split> function has special
+behavior, so Perl::Critic forgives that usage.  See C<"perldoc -f
+split"> for more information.
+
+
+=head1 CONFIGURATION
+
+This Policy is not configurable except for the standard options.
+
+
+=head1 SEE ALSO
+
+L<Perl::Critic::Policy::ControlStrucutres::RequireBlockGrep>
+
+L<Perl::Critic::Policy::ControlStrucutres::RequireBlockMap>
+
+=head1 AUTHOR
+
+Jeffrey Ryan Thalhammer <thaljef@cpan.org>
+
+=head1 COPYRIGHT
+
+Copyright (c) 2005-2008 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.
+
+=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 :