module Nokogiri::XML::PP::Node

def inspect
  attributes = inspect_attributes.reject do |x|
    attribute = send(x)
    !attribute || (attribute.respond_to?(:empty?) && attribute.empty?)
  rescue NoMethodError
    true
  end
  attributes = if inspect_attributes.length == 1
    send(attributes.first).inspect
  else
    attributes.map do |attribute|
      "#{attribute}=#{send(attribute).inspect}"
    end.join(" ")
  end
  "#<#{self.class.name}:#{format("0x%x", object_id)} #{attributes}>"
end