Compare the two values using the given type specific comparator.

def cmpr(self, val1, name, val2):
        '''
        Compare the two values using the given type specific comparator.
        '''
        ctor = self.getCmprCtor(name)
        if ctor is None:
            raise s_exc.NoSuchCmpr(cmpr=name, name=self.name)

        norm1 = self.norm(val1)[0]
        norm2 = self.norm(val2)[0]

        return ctor(norm2)(norm1)