new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import nlp.tokenizer
  import nlp.TextVectorizer
  
  import sys
  
  data = []
  filenames = sys.argv[1:]
  for filename in filenames:
      t = open(filename).read().decode('utf-8')
      data.append(t)
  
  data = "\n".join(data)
  
  print 'word,count'
  v = nlp.TextVectorizer.TfVectorizer(tokenizer=nlp.tokenizer.tokenizeJp, texts=data)
  tf = v.vectorize()
  for t, f in sorted(tf.items(), key=lambda x:-x[1]):
      print "%s,%d" % (t.encode('utf-8'), f)
  
subject: Change output format to csv