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| author | Serhiy Storchaka <storchaka@gmail.com> | 2016-09-09 21:57:55 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2016-09-09 21:57:55 (GMT) |
| commit | be9a4e5c855188cf146962483e6de942bf154d95 (patch) | |
| tree | eb157b3bf22214072f27e64244e0b7439c08e2a3 /Lib/test/test_re.py | |
| parent | ee73a657455a908102379d3c9bc254676418e10c (diff) | |
| download | cpython-be9a4e5c855188cf146962483e6de942bf154d95.zip cpython-be9a4e5c855188cf146962483e6de942bf154d95.tar.gz cpython-be9a4e5c855188cf146962483e6de942bf154d95.tar.bz2 | |
Issue #433028: Added support of modifier spans in regular expressions.
Diffstat (limited to 'Lib/test/test_re.py')
| -rw-r--r-- | Lib/test/test_re.py | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index 02fed21..2322ca9 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -1376,6 +1376,38 @@ class ReTests(unittest.TestCase): self.assertRaises(ValueError, re.compile, b'(?a)', re.LOCALE) self.assertRaises(ValueError, re.compile, b'(?aL)') + def test_scoped_flags(self): + self.assertTrue(re.match(r'(?i:a)b', 'Ab')) + self.assertIsNone(re.match(r'(?i:a)b', 'aB')) + self.assertIsNone(re.match(r'(?-i:a)b', 'Ab', re.IGNORECASE)) + self.assertTrue(re.match(r'(?-i:a)b', 'aB', re.IGNORECASE)) + self.assertIsNone(re.match(r'(?i:(?-i:a)b)', 'Ab')) + self.assertTrue(re.match(r'(?i:(?-i:a)b)', 'aB')) + + self.assertTrue(re.match(r'(?x: a) b', 'a b')) + self.assertIsNone(re.match(r'(?x: a) b', ' a b')) + self.assertTrue(re.match(r'(?-x: a) b', ' ab', re.VERBOSE)) + self.assertIsNone(re.match(r'(?-x: a) b', 'ab', re.VERBOSE)) + + self.checkPatternError(r'(?a:\w)', + 'bad inline flags: cannot turn on global flag', 3) + self.checkPatternError(r'(?a)(?-a:\w)', + 'bad inline flags: cannot turn off global flag', 8) + self.checkPatternError(r'(?i-i:a)', + 'bad inline flags: flag turned on and off', 5) + + self.checkPatternError(r'(?-', 'missing flag', 3) + self.checkPatternError(r'(?-+', 'missing flag', 3) + self.checkPatternError(r'(?-z', 'unknown flag', 3) + self.checkPatternError(r'(?-i', 'missing :', 4) + self.checkPatternError(r'(?-i)', 'missing :', 4) + self.checkPatternError(r'(?-i+', 'missing :', 4) + self.checkPatternError(r'(?-iz', 'unknown flag', 4) + self.checkPatternError(r'(?i:', 'missing ), unterminated subpattern', 0) + self.checkPatternError(r'(?i', 'missing -, : or )', 3) + self.checkPatternError(r'(?i+', 'missing -, : or )', 3) + self.checkPatternError(r'(?iz', 'unknown flag', 3) + def test_bug_6509(self): # Replacement strings of both types must parse properly. # all strings @@ -1538,9 +1570,9 @@ class ReTests(unittest.TestCase): with captured_stdout() as out: re.compile(pat, re.DEBUG) dump = '''\ -SUBPATTERN 1 +SUBPATTERN 1 0 0 LITERAL 46 -SUBPATTERN None +SUBPATTERN None 0 0 BRANCH IN LITERAL 99 @@ -1548,7 +1580,7 @@ SUBPATTERN None OR LITERAL 112 LITERAL 121 -SUBPATTERN None +SUBPATTERN None 0 0 GROUPREF_EXISTS 1 AT AT_END ELSE @@ -1664,7 +1696,7 @@ SUBPATTERN None self.checkPatternError(r'(?P', 'unexpected end of pattern', 3) self.checkPatternError(r'(?z)', 'unknown extension ?z', 1) self.checkPatternError(r'(?iz)', 'unknown flag', 3) - self.checkPatternError(r'(?i', 'missing )', 3) + self.checkPatternError(r'(?i', 'missing -, : or )', 3) self.checkPatternError(r'(?#abc', 'missing ), unterminated comment', 0) self.checkPatternError(r'(?<', 'unexpected end of pattern', 3) self.checkPatternError(r'(?<>)', 'unknown extension ?<>', 1) |