text: # Copyright (c) 2011-2018, Meituan Dianping. All Rights Reserved.
  #
  # Licensed to the Apache Software Foundation (ASF) under one or more
  # contributor license agreements. See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You under the Apache License, Version 2.0
  # (the "License"); you may not use this file except in compliance with
  # the License. You may obtain a copy of the License at
  #
  #  http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import cffi
  import sys
  
  PY2 = False
  PY3 = False
  
  if (sys.version_info > (3, 0)):
      PY3 = True
  else:
      PY2 = True
  
  if PY3:
      def _(x):
          return cffi.new("char[]", x.encode("utf-8"))
  else:
      def _(x):
          return x.encode('utf-8') if isinstance(x, unicode) else x
  