module Nokogiri::XML::Searchable

def xpath_internal(node, paths, handler, ns, binds)
  document = node.document
  return NodeSet.new(document) unless document
  if paths.length == 1
    return xpath_impl(node, paths.first, handler, ns, binds)
  end
  NodeSet.new(document) do |combined|
    paths.each do |path|
      xpath_impl(node, path, handler, ns, binds).each { |set| combined << set }
    end
  end
end