(self)
normalize short prefix
normalize short prefix
normalize short prefix
def pre1(self):
        """normalize short prefix"""
        for sp1 in self.p1:
            if self.stm.startswith(sp1):
                self.stm = self.stm[1:]
                return self.stm
def pre1 ( self ) : for sp1 in self . p1 : if self . stm . startswith ( sp1 ) : self . stm = self . stm [ 1 : ] return self . stm