text: #   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
  #
  # Licensed 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.
  """
  Build raw data
  """
  from __future__ import print_function
  import sys
  import os
  import random
  import re
  data_type = sys.argv[1]
  
  if not (data_type == "train" or data_type == "test"):
      print("python %s [test/train]" % sys.argv[0], file=sys.stderr)
      sys.exit(-1)
  
  pos_folder = "aclImdb/" + data_type + "/pos/"
  neg_folder = "aclImdb/" + data_type + "/neg/"
  
  pos_train_list = [(pos_folder + x, "1") for x in os.listdir(pos_folder)]
  neg_train_list = [(neg_folder + x, "0") for x in os.listdir(neg_folder)]
  
  all_train_list = pos_train_list + neg_train_list
  random.shuffle(all_train_list)
  
  
  def load_dict(dictfile):
      """
      Load word id dict
      """
      vocab = {}
      wid = 0
      with open(dictfile) as f:
          for line in f:
              vocab[line.strip()] = str(wid)
              wid += 1
      return vocab
  
  
  vocab = load_dict("aclImdb/imdb.vocab")
  unk_id = str(len(vocab))
  print("vocab size: ", len(vocab), file=sys.stderr)
  pattern = re.compile(r'(;|,|\.|\?|!|\s|\(|\))')
  
  for fitem in all_train_list:
      label = str(fitem[1])
      fname = fitem[0]
      with open(fname) as f:
          sent = f.readline().lower().replace("<br />", " ").strip()
          out_s = "%s | %s" % (sent, label)
          print(out_s, file=sys.stdout)
  