parameters: (self, flag_value)
return_statement: return filters
docstring: Parse the --filter flag, and return a list of filter rules.
  
          Args:
            flag_value: A string of comma-separated filter rules, for
                        example "-whitespace,+whitespace/indent".
docstring_summary: Parse the --filter flag, and return a list of filter rules.
docstring_tokens: Parse the -- filter flag and return a list of filter rules .
function: def _parse_filter_flag(self, flag_value):
          """Parse the --filter flag, and return a list of filter rules.
  
          Args:
            flag_value: A string of comma-separated filter rules, for
                        example "-whitespace,+whitespace/indent".
  
          """
          filters = []
          for uncleaned_filter in flag_value.split(','):
              filter = uncleaned_filter.strip()
              if not filter:
                  continue
              filters.append(filter)
          return filters
function_tokens: def _parse_filter_flag ( self , flag_value ) : filters = [ ] for uncleaned_filter in flag_value . split ( ',' ) : filter = uncleaned_filter . strip ( ) if not filter : continue filters . append ( filter ) return filters