(t)
return t
r'[+-]?[0-9]+
r'[+-]?[0-9]+
r [ + - ] ? [ 0 - 9 ] +
def t_INTCONSTANT(t):
    r'[+-]?[0-9]+'
    t.value = int(t.value)
    return t
def t_INTCONSTANT ( t ) : t . value = int ( t . value ) return t