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Name	Size	Perms	Modified	Actions
[ .. / .. ]
Boolean.pm	1.13 KB	-rw-r--r--	2017-07-28 16:18:08	Edit Del
Builder.pm	4.69 KB	-rw-r--r--	2017-07-28 16:18:14	Edit Del
Expr.pm	17.88 KB	-rw-r--r--	2017-07-28 16:18:21	Edit Del
Function.pm	11.8 KB	-rw-r--r--	2017-07-28 16:18:28	Edit Del
Literal.pm	1.82 KB	-rw-r--r--	2017-07-28 16:18:34	Edit Del
LocationPath.pm	1.27 KB	-rw-r--r--	2017-07-28 16:18:42	Edit Del
Node	-	drwxr-xr-x	2022-02-23 11:27:06	Del
Node.pm	12.45 KB	-rw-r--r--	2017-07-28 16:18:55	Edit Del
NodeSet.pm	3.79 KB	-rw-r--r--	2017-07-28 16:19:01	Edit Del
Number.pm	1.62 KB	-rw-r--r--	2017-07-28 16:19:09	Edit Del
Parser.pm	23.36 KB	-rw-r--r--	2017-07-28 16:19:15	Edit Del
PerlSAX.pm	4.99 KB	-rw-r--r--	2017-07-28 16:19:24	Edit Del
Root.pm	622 B	-rw-r--r--	2017-07-28 16:19:30	Edit Del
Step.pm	13.02 KB	-rw-r--r--	2017-07-28 16:19:37	Edit Del
Variable.pm	816 B	-rw-r--r--	2017-07-28 16:19:44	Edit Del
XMLParser.pm	10.15 KB	-rw-r--r--	2017-07-28 16:19:51	Edit Del

Editing: Boolean.pm (1.13 KB)

package XML::XPath::Boolean;

$VERSION = '1.42';

use XML::XPath::Number;
use XML::XPath::Literal;
use strict; use warnings;

use overload
		'""' => \&value,
		'<=>' => \&cmp;

sub True {
	my $class = shift;
	my $val = 1;
	bless \$val, $class;
}

sub False {
	my $class = shift;
	my $val = 0;
	bless \$val, $class;
}

sub value {
	my $self = shift;
	$$self;
}

sub cmp {
	my $self = shift;
	my ($other, $swap) = @_;
	if ($swap) {
		return $other <=> $$self;
	}
	return $$self <=> $other;
}

sub to_number { XML::XPath::Number->new($_[0]->value); }
sub to_boolean { $_[0]; }
sub to_literal { XML::XPath::Literal->new($_[0]->value ? "true" : "false"); }

sub string_value { return $_[0]->to_literal->value; }

1;
__END__

=head1 NAME

XML::XPath::Boolean - Boolean true/false values

=head1 DESCRIPTION

XML::XPath::Boolean objects implement simple boolean true/false objects.

=head1 API

=head2 XML::XPath::Boolean->True

Creates a new Boolean object with a true value.

=head2 XML::XPath::Boolean->False

Creates a new Boolean object with a false value.

=head2 value()

Returns true or false.

=head2 to_literal()

Returns the string "true" or "false".

=cut