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| 1 from test.support import verbose, run_unittest | 1 from test.support import verbose, run_unittest |
| 2 import re | 2 import re |
| 3 from re import Scanner | 3 from re import Scanner |
| 4 import sys | 4 import sys |
| 5 import string | 5 import string |
| 6 import traceback | 6 import traceback |
| 7 from weakref import proxy | 7 from weakref import proxy |
| 8 | 8 |
| 9 # Misc tests from Tim Peters' re.doc | 9 # Misc tests from Tim Peters' re.doc |
| 10 | 10 |
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| 147 def test_bug_462270(self): | 147 def test_bug_462270(self): |
| 148 # Test for empty sub() behaviour, see SF bug #462270 | 148 # Test for empty sub() behaviour, see SF bug #462270 |
| 149 self.assertEqual(re.sub('x*', '-', 'abxd'), '-a-b-d-') | 149 self.assertEqual(re.sub('x*', '-', 'abxd'), '-a-b-d-') |
| 150 self.assertEqual(re.sub('x+', '-', 'abxd'), 'ab-d') | 150 self.assertEqual(re.sub('x+', '-', 'abxd'), 'ab-d') |
| 151 | 151 |
| 152 def test_symbolic_refs(self): | 152 def test_symbolic_refs(self): |
| 153 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a', 'xx') | 153 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a', 'xx') |
| 154 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<', 'xx') | 154 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<', 'xx') |
| 155 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g', 'xx') | 155 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g', 'xx') |
| 156 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a a>', 'xx') | 156 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a a>', 'xx') |
| 157 self.assertRaises(re.error, re.sub, '(?P=)' , '\g', 'xx') |
| 158 self.assertRaises(re.error, re.sub, '(?P<>)' , '\g', 'xx') |
| 157 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<1a1>', 'xx') | 159 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<1a1>', 'xx') |
| 158 self.assertRaises(IndexError, re.sub, '(?P<a>x)', '\g<ab>', 'xx') | 160 self.assertRaises(IndexError, re.sub, '(?P<a>x)', '\g<ab>', 'xx') |
| 159 self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\g<b>', 'xx') | 161 self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\g<b>', 'xx') |
| 160 self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\\2', 'xx') | 162 self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\\2', 'xx') |
| 161 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<-1>', 'xx') | 163 self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<-1>', 'xx') |
| 162 | 164 |
| 163 def test_re_subn(self): | 165 def test_re_subn(self): |
| 164 self.assertEqual(re.subn("(?i)b+", "x", "bbbb BBBB"), ('x x', 2)) | 166 self.assertEqual(re.subn("(?i)b+", "x", "bbbb BBBB"), ('x x', 2)) |
| 165 self.assertEqual(re.subn("b+", "x", "bbbb BBBB"), ('x BBBB', 1)) | 167 self.assertEqual(re.subn("b+", "x", "bbbb BBBB"), ('x BBBB', 1)) |
| 166 self.assertEqual(re.subn("b+", "x", "xyz"), ('xyz', 0)) | 168 self.assertEqual(re.subn("b+", "x", "xyz"), ('xyz', 0)) |
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| 914 if result is None: | 916 if result is None: |
| 915 print('=== Fails on unicode-sensitive match', t) | 917 print('=== Fails on unicode-sensitive match', t) |
| 916 | 918 |
| 917 | 919 |
| 918 def test_main(): | 920 def test_main(): |
| 919 run_unittest(ReTests) | 921 run_unittest(ReTests) |
| 920 run_re_tests() | 922 run_re_tests() |
| 921 | 923 |
| 922 if __name__ == "__main__": | 924 if __name__ == "__main__": |
| 923 test_main() | 925 test_main() |
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