Issue #1700, reported by Nguyen Quan Son, fix by Fredruk Lundh:
Regular Expression inline flags not handled correctly for some unicode
characters. (Forward port from 2.5.2.)
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py
index f1fdfba..3056ef3 100644
--- a/Lib/test/test_re.py
+++ b/Lib/test/test_re.py
@@ -642,6 +642,36 @@
self.assertEqual(re.compile("bla").match(a), None)
self.assertEqual(re.compile("").match(a).groups(), ())
+ def test_inline_flags(self):
+ # Bug #1700
+ upper_char = unichr(0x1ea0) # Latin Capital Letter A with Dot Bellow
+ lower_char = unichr(0x1ea1) # Latin Small Letter A with Dot Bellow
+
+ p = re.compile(upper_char, re.I | re.U)
+ q = p.match(lower_char)
+ self.assertNotEqual(q, None)
+
+ p = re.compile(lower_char, re.I | re.U)
+ q = p.match(upper_char)
+ self.assertNotEqual(q, None)
+
+ p = re.compile('(?i)' + upper_char, re.U)
+ q = p.match(lower_char)
+ self.assertNotEqual(q, None)
+
+ p = re.compile('(?i)' + lower_char, re.U)
+ q = p.match(upper_char)
+ self.assertNotEqual(q, None)
+
+ p = re.compile('(?iu)' + upper_char)
+ q = p.match(lower_char)
+ self.assertNotEqual(q, None)
+
+ p = re.compile('(?iu)' + lower_char)
+ q = p.match(upper_char)
+ self.assertNotEqual(q, None)
+
+
def run_re_tests():
from test.re_tests import benchmarks, tests, SUCCEED, FAIL, SYNTAX_ERROR
if verbose: