def __offset__(self):
        """Fetch a skip offset definition."""
        oft = self.__expression__()
        if type(oft) is not int or oft < 0 or oft > M6:
            self.parseerror('Invalid skip offset ' + repr(oft),
                            self.prevline)
        return oft
def __offset__ ( self ) : oft = self . __expression__ ( ) if type ( oft ) is not int or oft < 0 or oft > M6 : self . parseerror ( 'Invalid skip offset ' + repr ( oft ) , self . prevline ) return oft
Fetch a skip offset definition.