/usr/share/perl5/PPIx/Regexp/Token/CharClass/POSIX.pm is in libppix-regexp-perl 0.036-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | =head1 NAME
PPIx::Regexp::Token::CharClass::POSIX - Represent a POSIX character class
=head1 SYNOPSIS
use PPIx::Regexp::Dumper;
PPIx::Regexp::Dumper->new( 'qr{ [[:alpha:]] }smx' )
->print();
=head1 INHERITANCE
C<PPIx::Regexp::Token::CharClass::POSIX> is a
L<PPIx::Regexp::Token::CharClass|PPIx::Regexp::Token::CharClass>.
C<PPIx::Regexp::Token::CharClass::POSIX> is the parent of
L<PPIx::Regexp::Token::CharClass::POSIX::Unknown|PPIx::Regexp::Token::CharClass::POSIX::Unknown>.
=head1 DESCRIPTION
This class represents a POSIX character class. It will only be
recognized within a character class.
Note that collating symbols (e.g. C<[.ch.]>) and equivalence classes
(e.g. C<[=a=]>) are valid in the POSIX standard, but are not valid in
Perl regular expressions. These end up being represented by
L<PPIx::Regexp::Token::CharClass::POSIX::Unknown|PPIx::Regexp::Token::CharClass::POSIX::Unknown>,
and are considered a parse failure.
=head1 METHODS
This class provides the following public methods beyond those provided
by its superclass.
=cut
package PPIx::Regexp::Token::CharClass::POSIX;
use strict;
use warnings;
use base qw{ PPIx::Regexp::Token::CharClass };
use PPIx::Regexp::Constant qw{ COOKIE_CLASS COOKIE_REGEX_SET MINIMUM_PERL };
our $VERSION = '0.036';
# Return true if the token can be quantified, and false otherwise
# sub can_be_quantified { return };
##=head2 is_case_sensitive
##
##This override of the superclass method of the same name returns true if
##the character class is C<[:lower:]> or C<[:upper:]>, and false (but
##defined) for all other POSIX character classes.
##
##=cut
##
##{
## my %case_sensitive = map { $_ => 1 } qw{ [:lower:] [:upper:] };
##
## sub is_case_sensitive {
## my ( $self ) = @_;
## return $case_sensitive{ $self->content() } || 0;
## }
##}
sub perl_version_introduced {
# my ( $self ) = @_;
return '5.006';
}
{
my %class = (
':' => __PACKAGE__,
);
sub __PPIX_TOKENIZER__regexp {
my ( $class, $tokenizer, $character ) = @_;
$tokenizer->cookie( COOKIE_CLASS )
or $tokenizer->cookie( COOKIE_REGEX_SET )
or return;
if ( my $accept = $tokenizer->find_regexp(
qr{ \A [[] ( [.=:] ) \^? .*? \1 []] }smx ) ) {
my ( $punc ) = $tokenizer->capture();
return $tokenizer->make_token( $accept,
$class{$punc} || __PACKAGE__ . '::Unknown' );
}
return;
}
}
1;
__END__
=head1 SUPPORT
Support is by the author. Please file bug reports at
L<http://rt.cpan.org>, or in electronic mail to the author.
=head1 AUTHOR
Thomas R. Wyant, III F<wyant at cpan dot org>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2009-2014 by Thomas R. Wyant, III
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl 5.10.0. For more details, see the full text
of the licenses in the directory LICENSES.
This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
=cut
# ex: set textwidth=72 :
|