content: #! /usr/bin/env python
  
  # -*- coding: utf-8 -*-
  # Copyright 2017 Google Inc.
  #
  # 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.
  
  
  """
  Processes a CNN/Daily Mail story file into a format that can
  be used for summarization.
  """
  
  import fileinput
  import re
  
  def process_story(text):
    """Processed a story text into an (article, summary) tuple.
    """
    # Split by highlights
    elements = text.split("@highlight")
    elements = [_.strip() for _ in elements]
  
    story_text = elements[0]
    highlights = elements[1:]
  
    # Join all highlights into a single blob
    highlights_joined = "; ".join(highlights)
    highlights_joined = re.sub(r"\s+", " ", highlights_joined)
    highlights_joined = highlights_joined.strip()
  
    # Remove newlines from story
    # story_text = story_text.replace("\n", " ")
    story_text = re.sub(r"\s+", " ", story_text)
    story_text = story_text.strip()
  
    return story_text, highlights_joined
  
  def main(*args, **kwargs):
    """Program entry point"""
    story_text = "\n".join(list(fileinput.input()))
    story, highlights = process_story(story_text)
  
    if story and highlights:
      print("{}\t{}".format(story, highlights))
  
  if __name__ == '__main__':
    main()
  