class Nokogiri::XML::ProcessingInstruction

def self.new(document, name, content, *rest) # :nodoc:
  node_ptr = LibXML.xmlNewDocPI(document.cstruct, name.to_s, content.to_s)
  node_cstruct = LibXML::XmlNode.new(node_ptr)
  node_cstruct.keep_reference_from_document!
  node = Node.wrap(node_cstruct, self)
  node.send :initialize, document, name, content, *rest
  yield node if block_given?
  node
end

def initialize document, name, content
end