/usr/share/perl5/PPIx/Regexp/Token/GroupType/Switch.pm is in libppix-regexp-perl 0.055-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | =head1 NAME
PPIx::Regexp::Token::GroupType::Switch - Represent the introducing characters for a switch
=head1 SYNOPSIS
use PPIx::Regexp::Dumper;
PPIx::Regexp::Dumper->new( 'qr{(?(1)foo|bar)}smx' )
->print();
=head1 INHERITANCE
C<PPIx::Regexp::Token::GroupType::Switch> is a
L<PPIx::Regexp::Token::GroupType|PPIx::Regexp::Token::GroupType>.
C<PPIx::Regexp::Token::GroupType::Switch> has no descendants.
=head1 DESCRIPTION
This class represents the characters right after a left parenthesis that
introduce a switch. Strictly speaking these characters are '?(', but
this class only takes the '?'.
=head1 METHODS
This class provides no public methods beyond those provided by its
superclass.
=cut
package PPIx::Regexp::Token::GroupType::Switch;
use strict;
use warnings;
use base qw{ PPIx::Regexp::Token::GroupType };
our $VERSION = '0.055';
{
my %explanation = (
'?' => q<Match one of the following '|'-delimited alternatives>,
);
sub __explanation {
return \%explanation;
}
}
sub perl_version_introduced {
# my ( $self ) = @_;
return '5.005';
}
# Return true if the token can be quantified, and false otherwise
# sub can_be_quantified { return };
=begin comment
sub __PPIX_TOKENIZER__regexp {
my ( $class, $tokenizer, $character ) = @_;
# The optional escape is because any non-open-bracket character may
# appear as the regular expression delimiter.
if ( my $accept = $tokenizer->find_regexp(
qr{ \A \\? \? \( }smx ) ) {
# Leave the left paren, since it belongs to the condition.
--$accept;
$tokenizer->expect( qw{
PPIx::Regexp::Token::Condition
} );
return $accept;
}
return;
}
=end comment
=cut
sub __defining_string {
return (
{ suffix => '(' },
'?',
);
}
sub __match_setup {
my ( undef, $tokenizer ) = @_; # Invocant unused
$tokenizer->expect( qw{ PPIx::Regexp::Token::Condition } );
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) 2009-2018 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 :
|