File Coverage

blib/lib/Tree/XPathEngine/LocationPath.pm

Criterion	Covered	Total	%
statement	15	27	55.5
branch	1	4	25.0
condition			n/a
subroutine	3	5	60.0
pod	4	4	100.0
total	23	40	57.5

# $Id: /tree-xpathengine/trunk/lib/Tree/XPathEngine/LocationPath.pm 22 2006-02-13T14:00:25.731780Z mrodrigu  $

package Tree::XPathEngine::LocationPath;
use strict;

sub new {
	my $class = shift;
	my $self = [];
	bless $self, $class;
}

sub as_string {
	my $self = shift;
	my $string;
	for (my $i = 0; $i < @$self; $i++) {
		$string .= $self->[$i]->as_string;
		$string .= "/" if $self->[$i+1];
	}
	return $string;
}

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

    for (my $i = 0; $i < @$self; $i++) {
        $string .= $self->[$i]->as_xml;
    }

    $string .= "\n";
    return $string;
}


sub evaluate {
	my $self = shift;
	# context _MUST_ be a single node
	my $context = shift;
	die "No context" unless $context;

	# I _think_ this is how it should work :)

	my $nodeset = Tree::XPathEngine::NodeSet->new();
	$nodeset->push($context);

	foreach my $step (@$self) {
		# For each step
		# evaluate the step with the nodeset
		my $pos = 1;
		$nodeset = $step->evaluate($nodeset);
	}

	return $nodeset->remove_duplicates;
}

1;

__END__