old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import re
  import sys
  
  regex_ruby = re.compile(u'《[^》]*》')
  regex_note = re.compile(u'［＃[^］]*］')
  regex_split = re.compile(u'｜')
  
  for line in sys.stdin.readlines():
      res = regex_note.sub('', unicode(line, 'shift-jis'))
      res = regex_ruby.sub('', res)
      res = regex_split.sub('', res)
      print res
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  #    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.
  
  import re
  import sys
  
  regex_ruby = re.compile(u'《[^》]*》')
  regex_note = re.compile(u'［＃[^］]*］')
  regex_split = re.compile(u'｜')
  
  for line in sys.stdin.readlines():
      res = regex_note.sub('', unicode(line, 'shift-jis'))
      res = regex_ruby.sub('', res)
      res = regex_split.sub('', res)
      print res
  
subject: Add license header