/usr/share/perl5/PPIx/Regexp/Token/Condition.pm is in libppix-regexp-perl 0.055-1.
This file is owned by root:root, with mode 0o644.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | =head1 NAME
PPIx::Regexp::Token::Condition - Represent the condition of a switch
=head1 SYNOPSIS
use PPIx::Regexp::Dumper;
PPIx::Regexp::Dumper->new( 'qr{(?(1)foo|bar)}smx' )
->print();
=head1 INHERITANCE
C<PPIx::Regexp::Token::Condition> is a
L<PPIx::Regexp::Token::Reference|PPIx::Regexp::Token::Reference>.
C<PPIx::Regexp::Token::Condition> has no descendants.
=head1 DESCRIPTION
This class represents the condition portion of a switch or conditional
expression, provided that condition is reasonably represented as a
token.
=head1 METHODS
This class provides no public methods beyond those provided by its
superclass.
=cut
package PPIx::Regexp::Token::Condition;
use strict;
use warnings;
use base qw{ PPIx::Regexp::Token::Reference };
use PPIx::Regexp::Constant qw{ RE_CAPTURE_NAME };
our $VERSION = '0.055';
{
my %explanation = (
'(DEFINE)' => 'Define a group to be recursed into',
'(R)' => 'True if recursing',
);
sub explain {
my ( $self ) = @_;
my $content = $self->content();
if ( defined( my $expl = $explanation{$content} ) ) {
return $expl;
}
if ( $content =~ m/ \A [(] R /smx ) { # )
$self->is_named()
and return sprintf
q<True if recursing directly inside capture group '%s'>,
$self->name();
return sprintf
q<True if recursing directly inside capture group %d>,
$self->absolute();
}
$self->is_named()
and return sprintf
q<True if capture group '%s' matched>,
$self->name();
return sprintf
q<True if capture group %d matched>,
$self->absolute();
}
}
sub perl_version_introduced {
my ( $self ) = @_;
$self->content() =~ m/ \A [(] \d+ [)] \z /smx
and return '5.005';
return '5.009005';
}
my @recognize = (
[ qr{ \A \( (?: ( \d+ ) | R (\d+) ) \) }smx,
{ is_named => 0 } ],
[ qr{ \A \( R \) }smx,
{ is_named => 0, capture => '0' } ],
[ qr{ \A \( (?: < ( @{[ RE_CAPTURE_NAME ]} ) > |
' ( @{[ RE_CAPTURE_NAME ]} ) ' |
R & ( @{[ RE_CAPTURE_NAME ]} ) ) \) }smxo,
{ is_named => 1} ],
[ qr{ \A \( DEFINE \) }smx,
{ is_named => 0, capture => '0' } ],
);
# This must be implemented by tokens which do not recognize themselves.
# The return is a list of list references. Each list reference must
# contain a regular expression that recognizes the token, and optionally
# a reference to a hash to pass to make_token as the class-specific
# arguments. The regular expression MUST be anchored to the beginning of
# the string.
sub __PPIX_TOKEN__recognize {
return @recognize;
}
# Return true if the token can be quantified, and false otherwise
# sub can_be_quantified { return };
sub __PPIX_TOKENIZER__regexp {
my ( undef, $tokenizer ) = @_; # Invocant, $character unused
foreach ( @recognize ) {
my ( $re, $arg ) = @{ $_ };
my $accept = $tokenizer->find_regexp( $re ) or next;
return $tokenizer->make_token( $accept, __PACKAGE__, $arg );
}
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
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