diff options
| -rw-r--r-- | Lib/re.py | 48 | ||||
| -rw-r--r-- | Lib/test/test_re.py | 12 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2019-04-07-14-30-10.bpo-36548.CJQiYw.rst | 1 |
3 files changed, 45 insertions, 16 deletions
@@ -141,24 +141,40 @@ __all__ = [ __version__ = "2.2.1" class RegexFlag(enum.IntFlag): - ASCII = sre_compile.SRE_FLAG_ASCII # assume ascii "locale" - IGNORECASE = sre_compile.SRE_FLAG_IGNORECASE # ignore case - LOCALE = sre_compile.SRE_FLAG_LOCALE # assume current 8-bit locale - UNICODE = sre_compile.SRE_FLAG_UNICODE # assume unicode "locale" - MULTILINE = sre_compile.SRE_FLAG_MULTILINE # make anchors look for newline - DOTALL = sre_compile.SRE_FLAG_DOTALL # make dot match newline - VERBOSE = sre_compile.SRE_FLAG_VERBOSE # ignore whitespace and comments - A = ASCII - I = IGNORECASE - L = LOCALE - U = UNICODE - M = MULTILINE - S = DOTALL - X = VERBOSE + ASCII = A = sre_compile.SRE_FLAG_ASCII # assume ascii "locale" + IGNORECASE = I = sre_compile.SRE_FLAG_IGNORECASE # ignore case + LOCALE = L = sre_compile.SRE_FLAG_LOCALE # assume current 8-bit locale + UNICODE = U = sre_compile.SRE_FLAG_UNICODE # assume unicode "locale" + MULTILINE = M = sre_compile.SRE_FLAG_MULTILINE # make anchors look for newline + DOTALL = S = sre_compile.SRE_FLAG_DOTALL # make dot match newline + VERBOSE = X = sre_compile.SRE_FLAG_VERBOSE # ignore whitespace and comments # sre extensions (experimental, don't rely on these) - TEMPLATE = sre_compile.SRE_FLAG_TEMPLATE # disable backtracking - T = TEMPLATE + TEMPLATE = T = sre_compile.SRE_FLAG_TEMPLATE # disable backtracking DEBUG = sre_compile.SRE_FLAG_DEBUG # dump pattern after compilation + + def __repr__(self): + if self._name_ is not None: + return f're.{self._name_}' + value = self._value_ + members = [] + negative = value < 0 + if negative: + value = ~value + for m in self.__class__: + if value & m._value_: + value &= ~m._value_ + members.append(f're.{m._name_}') + if value: + members.append(hex(value)) + res = '|'.join(members) + if negative: + if len(members) > 1: + res = f'~({res})' + else: + res = f'~{res}' + return res + __str__ = object.__str__ + globals().update(RegexFlag.__members__) # sre exception diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index 137c31d..4817d76 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -2170,6 +2170,18 @@ class PatternReprTests(unittest.TestCase): self.assertEqual(r[:30], "re.compile('Very long long lon") self.assertEqual(r[-16:], ", re.IGNORECASE)") + def test_flags_repr(self): + self.assertEqual(repr(re.I), "re.IGNORECASE") + self.assertEqual(repr(re.I|re.S|re.X), + "re.IGNORECASE|re.DOTALL|re.VERBOSE") + self.assertEqual(repr(re.I|re.S|re.X|(1<<20)), + "re.IGNORECASE|re.DOTALL|re.VERBOSE|0x100000") + self.assertEqual(repr(~re.I), "~re.IGNORECASE") + self.assertEqual(repr(~(re.I|re.S|re.X)), + "~(re.IGNORECASE|re.DOTALL|re.VERBOSE)") + self.assertEqual(repr(~(re.I|re.S|re.X|(1<<20))), + "~(re.IGNORECASE|re.DOTALL|re.VERBOSE|0x100000)") + class ImplementationTest(unittest.TestCase): """ diff --git a/Misc/NEWS.d/next/Library/2019-04-07-14-30-10.bpo-36548.CJQiYw.rst b/Misc/NEWS.d/next/Library/2019-04-07-14-30-10.bpo-36548.CJQiYw.rst new file mode 100644 index 0000000..e72bb91 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2019-04-07-14-30-10.bpo-36548.CJQiYw.rst @@ -0,0 +1 @@ +Improved the repr of regular expression flags. |