test_re.py 文件源码

def test_special_escapes(self):
        self.assertEqual(re.search(r"\b(b.)\b",
                                   "abcd abc bcd bx").group(1), "bx")
        self.assertEqual(re.search(r"\B(b.)\B",
                                   "abc bcd bc abxd").group(1), "bx")
        self.assertEqual(re.search(r"\b(b.)\b",
                                   "abcd abc bcd bx", re.LOCALE).group(1), "bx")
        self.assertEqual(re.search(r"\B(b.)\B",
                                   "abc bcd bc abxd", re.LOCALE).group(1), "bx")
        if have_unicode:
            self.assertEqual(re.search(r"\b(b.)\b",
                                       "abcd abc bcd bx", re.UNICODE).group(1), "bx")
            self.assertEqual(re.search(r"\B(b.)\B",
                                       "abc bcd bc abxd", re.UNICODE).group(1), "bx")
        self.assertEqual(re.search(r"^abc$", "\nabc\n", re.M).group(0), "abc")
        self.assertEqual(re.search(r"^\Aabc\Z$", "abc", re.M).group(0), "abc")
        self.assertIsNone(re.search(r"^\Aabc\Z$", "\nabc\n", re.M))
        self.assertEqual(re.search(r"\b(b.)\b",
                                   u"abcd abc bcd bx").group(1), "bx")
        self.assertEqual(re.search(r"\B(b.)\B",
                                   u"abc bcd bc abxd").group(1), "bx")
        self.assertEqual(re.search(r"^abc$", u"\nabc\n", re.M).group(0), "abc")
        self.assertEqual(re.search(r"^\Aabc\Z$", u"abc", re.M).group(0), "abc")
        self.assertIsNone(re.search(r"^\Aabc\Z$", u"\nabc\n", re.M))
        self.assertEqual(re.search(r"\d\D\w\W\s\S",
                                   "1aa! a").group(0), "1aa! a")
        self.assertEqual(re.search(r"\d\D\w\W\s\S",
                                   "1aa! a", re.LOCALE).group(0), "1aa! a")
        if have_unicode:
            self.assertEqual(re.search(r"\d\D\w\W\s\S",
                                       "1aa! a", re.UNICODE).group(0), "1aa! a")