code: def is_directory_index(resource):
      
      remote_regexp = re.compile(r"^https?://(.+)/?$", re.I)
      result = remote_regexp.match(resource)
  
      if result is not None:
          juicer.utils.Log.log_debug("%s matches directory index regexp" % resource)
          return True
      else:
          juicer.utils.Log.log_debug("%s doesn't match directory index regexp" % resource)
          return False
docs: Classify the input resource as a directory index or not.