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THALJEF / Perl-Critic-More-1.003 / lib / Perl / Critic / Policy / CodeLayout / RequireASCII.pm 

            

              
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#######################################################################
#      $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/distributions/Perl-Critic-More/lib/Perl/Critic/Policy/CodeLayout/RequireASCII.pm $
#     $Date: 2013-10-29 09:39:11 -0700 (Tue, 29 Oct 2013) $
#   $Author: thaljef $
# $Revision: 4222 $
########################################################################
package Perl::Critic::Policy::CodeLayout::RequireASCII;
use 5.006001;
use strict;
use warnings;
use Readonly;
use List::MoreUtils qw(none any);
use Perl::Critic::Utils qw{ :severities };
use base 'Perl::Critic::Policy';
our $VERSION = '1.003';
Readonly::Scalar my $MAX_ASCII_VALUE => 127;
#---------------------------------------------------------------------------
Readonly::Scalar my $DESC => 'Use only ASCII code';
Readonly::Scalar my $EXPL => 'Put any non-ASCII in separate files';
#---------------------------------------------------------------------------
sub default_severity     { return $SEVERITY_LOWEST }
sub default_themes       { return qw< more notrecommended > }
sub applies_to           { return 'PPI::Token' }
sub supported_parameters { return () }
#---------------------------------------------------------------------------
sub violates {
    my ( $self, $elem, $doc ) = @_;
    if ( any { $_ > $MAX_ASCII_VALUE } unpack 'C*', "$elem" ) {
        return $self->violation( $DESC, $EXPL, $elem );
    }
    if ( $elem->isa('PPI::Token::HereDoc') ) {
        for my $line ( $elem->heredoc ) {
            if ( any { $_ > $MAX_ASCII_VALUE } unpack 'C*', $line ) {
                return $self->violation( $DESC, $EXPL, $elem );
            }
        }
    }
    return;    #ok
}
1;
__END__
#---------------------------------------------------------------------------
=pod
=for stopwords EBCDIC
=head1 NAME
Perl::Critic::Policy::CodeLayout::RequireASCII - Disallow high-bit characters.
=head1 AFFILIATION
This policy is part of L<Perl::Critic::More|Perl::Critic::More>, a bleeding
edge supplement to L<Perl::Critic|Perl::Critic>.
=head1 DESCRIPTION
ASCII is a text encoding first introduced in 1963.  It represents 128
characters in seven-bit bytes, reserving the eighth bit for error detection.
Perl supports a large number of encodings.  However, if you really want the
ultimate in backward compatibility, ASCII is it!  (We won't even talk about
EBCDIC and the like...)
This policy is B<not> recommended for everyone.  Instead,
most of you should probably strive for one of the Unicode encodings for
maximum forward compatibility.
=head1 SEE ALSO
L<http://en.wikipedia.org/wiki/Ascii>
L<http://en.wikipedia.org/wiki/EBCDIC>
L<http://en.wikipedia.org/wiki/Unicode>
=head1 AUTHOR
Chris Dolan <cdolan@cpan.org>
=head1 COPYRIGHT
Copyright (c) 2006-2008 Chris Dolan
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 :