test_atoms.py 文件源码

def test_from_re(self):
        # re.U and re.S flags are implicitly set
        self.assertEqual(RegExp.from_re(re.compile("a", re.U)), RegExp("a"))
        self.assertEqual(RegExp.from_re(re.compile("a", re.S)), RegExp("a"))

        # re.I flag can be set explicitly
        self.assertEqual(
            RegExp.from_re(re.compile("a", re.I)),
            RegExp("a", ignore_case=True))

        # re.M, re.L and re.X are forbidden
        for flag in [re.M, re.L, re.X]:
            self.assertRaises(ValueError, RegExp.from_re, re.compile("a", flag))