NAME

       Tree::XPathEngine::NodeSet - a list of XML document nodes

DESCRIPTION

       An Tree::XPathEngine::NodeSet object contains an ordered list of nodes. The nodes each
       take the same format as described in Tree::XPathEngine::XMLParser.

SYNOPSIS

               my $results = $xp->find('//someelement');
               if (!$results->isa('Tree::XPathEngine::NodeSet')) {
                       print "Found $results\n";
                       exit;
               }
               foreach my $context ($results->get_nodelist) {
                       my $newresults = $xp->find('./other/element', $context);
                       ...
               }

API

   new()
       You will almost never have to create a new NodeSet object, as it is all done for you by
       XPath.

   get_nodelist()
       Returns a list of nodes. See Tree::XPathEngine::XMLParser for the format of the nodes.

   xpath_string_value()
       Returns the string-value of the first node in the list.  See the XPath specification for
       what "string-value" means.

   xpath_to_literal()
       Returns the concatenation of all the string-values of all the nodes in the list.

   get_node($pos)
       Returns the node at $pos. The node position in XPath is based at 1, not 0.

   size()
       Returns the number of nodes in the NodeSet.

   pop()
       Equivalent to perl's pop function.

   push(@nodes)
       Equivalent to perl's push function.

   append($nodeset)
       Given a nodeset, appends the list of nodes in $nodeset to the end of the current list.

   shift()
       Equivalent to perl's shift function.

   unshift(@nodes)
       Equivalent to perl's unshift function.

   prepend($nodeset)
       Given a nodeset, prepends the list of nodes in $nodeset to the front of the current list.

   xpath_get_root_node
       Returns the root node of the first node in the set

   sort
       Returns a sorted nodeset using the "cmp" method on nodes

   remove_duplicates
       Returns a sorted nodeset of unique nodes. The input nodeset MUST be sorted

   xpath_to_boolean
       Returns true if the nodeset is not empty

   xpath_to_number
       Returns the concatenation of all the string-values of all the nodes in the list as a
       Tree::XPathEngine::Number object;