new_contents: # -*- coding: utf-8 -*-
  """
      pygments.modeline
      ~~~~~~~~~~~~~~~~~
  
      A simple modeline parser (based on pymodeline).
  
      :copyright: Copyright 2006-2012 by the Pygments team, see AUTHORS.
      :license: BSD, see LICENSE for details.
  """
  import re
  
  __all__ = ['get_filetype_from_buffer']
  
  modeline_re = re.compile(r'''
      (?: vi | vim | ex ) (?: [<=>]? \d* )? :
      .* (?: ft | filetype | syn | syntax ) = ( [^:\s]+ )
  ''', re.VERBOSE)
  
  def get_filetype_from_line(l):
      m = modeline_re.search(l)
      if m:
          return m.group(1)
  
  def get_filetype_from_buffer(buf, max_lines = 5):
      """
      Scan the buffer for modelines and return filetype if one is found.
      """
      lines = buf.splitlines()
      for l in lines[-1:-max_lines-1:-1]:
          ret = get_filetype_from_line(l)
          if ret:
              return ret
      for l in lines[max_lines:0:-1]:
          ret = get_filetype_from_line(l)
          if ret:
              return ret
  
      return None
  
subject: Introduce a very simple vim modeline parser.