module Nokogiri::XML::Searchable

def xpath_impl(node, path, handler, ns, binds)
  context = XPathContext.new(node)
  context.register_namespaces(ns)
  context.register_variables(binds)
  path = path.gsub("xmlns:", " :") unless Nokogiri.uses_libxml?
  context.evaluate(path, handler)
end