1 ##############################################################################
2 # $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/Perl-Critic/lib/Perl/Critic/Policy/ValuesAndExpressions/RequireUpperCaseHeredocTerminator.pm $
3 # $Date: 2008-07-03 10:19:10 -0500 (Thu, 03 Jul 2008) $
6 ##############################################################################
8 package Perl::Critic::Policy::ValuesAndExpressions::RequireUpperCaseHeredocTerminator;
15 use Perl::Critic::Utils qw{ :severities };
16 use base 'Perl::Critic::Policy';
18 our $VERSION = '1.088';
20 #-----------------------------------------------------------------------------
22 Readonly::Scalar my $HEREDOC_RX => qr{ \A << \s* (["|']?) [[:upper:]_] [[:upper:]\d_]* \1 \z }mx;
23 Readonly::Scalar my $DESC => q{Heredoc terminator not alphanumeric and upper-case};
24 Readonly::Scalar my $EXPL => [ 64 ];
26 #-----------------------------------------------------------------------------
28 sub supported_parameters { return () }
29 sub default_severity { return $SEVERITY_LOW }
30 sub default_themes { return qw(core pbp cosmetic) }
31 sub applies_to { return 'PPI::Token::HereDoc' }
33 #-----------------------------------------------------------------------------
36 my ( $self, $elem, undef ) = @_;
38 if ( $elem !~ $HEREDOC_RX ) {
39 return $self->violation( $DESC, $EXPL, $elem );
48 #-----------------------------------------------------------------------------
54 Perl::Critic::Policy::ValuesAndExpressions::RequireUpperCaseHeredocTerminator - Write C< <<'THE_END'; > instead of C< <<'theEnd'; >.
58 This Policy is part of the core L<Perl::Critic> distribution.
63 For legibility, HEREDOC terminators should be all UPPER CASE letters
64 (and numbers), without any whitespace. Conway also recommends using a
65 standard prefix like "END_" but this policy doesn't enforce that.
67 print <<'the End'; #not ok
71 print <<'THE_END'; #ok
78 This Policy is not configurable except for the standard options.
83 L<Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator>
87 Jeffrey Ryan Thalhammer <thaljef@cpan.org>
91 Copyright (c) 2005-2008 Jeffrey Ryan Thalhammer. All rights reserved.
93 This program is free software; you can redistribute it and/or modify
94 it under the same terms as Perl itself. The full text of this license
95 can be found in the LICENSE file included with this module.
101 # cperl-indent-level: 4
103 # indent-tabs-mode: nil
104 # c-indentation-style: bsd
106 # ex: set ts=8 sts=4 sw=4 tw=78 ft=perl expandtab shiftround :