File Coverage

blib/lib/XML/XPathEngine/Literal.pm

Criterion	Covered	Total	%
statement	26	45	57.7
branch	0	4	0.0
condition			n/a
subroutine	12	19	63.1
pod	3	14	21.4
total	41	82	50.0

# $Id: Literal.pm,v 1.11 2001/03/16 11:10:08 matt Exp $

package XML::XPathEngine::Literal;
use XML::XPathEngine::Boolean;
use XML::XPathEngine::Number;
use strict;
use Carp;

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

sub new {
	my $class = shift;
	my ($string) = @_;

#	$string =~ s/"/"/g;
#	$string =~ s/'/'/g;

	bless \$string, $class;
}

sub as_string {
	my $self = shift;
	my $string = $$self;
	$string =~ s/'/'/g;
	return "'$string'";
}

sub as_xml {
    my $self = shift;
    my $string = $$self;
    return "$string\n";
}

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

sub value_as_number {
	my $self = shift;
 warn "numifying '", $$self, "' to '", +$$self, "'\n";
	+$$self;
}

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

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

sub to_boolean {
	my $self = shift;
	return (length($$self) > 0) ? XML::XPathEngine::Boolean->True : XML::XPathEngine::Boolean->False;
}

sub to_number { return XML::XPathEngine::Number->new($_[0]->value); }
sub to_literal { return $_[0]; }

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

sub getChildNodes { croak "cannot get child nodes of a literal"; }
sub getAttributes { croak "cannot get attributes of a literal";  }
sub getParentNode { croak "cannot get parent node of a literal"; }

1;
__END__