text: #!/usr/bin/env python3
  
  # Copyright 2012-2018 Ben Lambert
  
  # 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.
  
  
  # Should this be in ASR evaluation?
  
  import argparse
  from asr_tools.kaldi import read_transcript
  from asr_tools.kaldi import read_transcript_table
  from asr_tools.evaluation_util import evaluate_hyps
  
  
  def arg_parser():
      """Return parsed args for this script."""
      desc = """Compute the WER between two 'transcript'-like files.
      The first token of each line should be the ID.  The order of the
      lines doesn't matter."""
      parser = argparse.ArgumentParser(description=desc)
      parser.add_argument("ref_file", type=argparse.FileType('r'))
      parser.add_argument("hyp_file", type=argparse.FileType('r'))
      args = parser.parse_args()
      return args
  
  def main():
      """Main method for computing WER."""
      args = arg_parser()
      ref_table = read_transcript_table(args.ref_file)
      hyps = read_transcript(args.hyp_file)
      print(evaluate_hyps(hyps, ref_table))
  
  if __name__ == "__main__":
      main()
  