# File lib/xsd/ns.rb, line 71
  def name(name)
    if (name.namespace == @default_namespace)
      name.name
    elsif @ns2tag.key?(name.namespace)
      "#{@ns2tag[name.namespace]}:#{name.name}"
    else
      raise FormatError.new("namespace: #{name.namespace} not defined yet")
    end
  end