code: def filter_values(self, pattern, flags=0):
          
  
          values = []
          if not self.__elements:
              return values
  
          for item in foundations.walkers.dictionaries_walker(self.__elements):
              path, element, value = item
              if re.search(pattern, element, flags):
                  values.append(value)
          return values
docs: | Filters the :meth:`PlistFileParser.elements` class property elements using given pattern.
          | Will return a list of matching elements values, if you want to get only one element value, use
              the :meth:`PlistFileParser.get_value` method instead.
  
          Usage::
  
              >>> plist_file_parser = PlistFileParser("standard.plist")
              >>> plist_file_parser.parse()
              True
              >>> plist_file_parser.filter_values(r"String A")
              [u'My Value A']
              >>> plist_file_parser.filter_values(r"String.*")
              [u'My Value C', u'My Value B', u'My Value A']
  
          :param pattern: Regex filtering pattern.
          :type pattern: unicode
          :param flags: Regex flags.
          :type flags: int
          :return: Values.
          :rtype: list