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11 Commits

Author SHA1 Message Date
drh
d8e48fffdf Fix corner cases in UTF8 handling in the REGEXP extension. 
[forum:/forumpost/3ffe058b04|Forum post 3ffe058b04].

FossilOrigin-Name: abb18f61c5cec0f524acc41453b4c06b61c5af51ff46417588837fc0c3967288
 2022-11-17 19:24:39 +00:00
drh
449b473ee6 Enhance the REGEXP extension so that it will accept the start-of-input 
mark ("^") in the middle of parentheses.
[forum:/forumpost/0d6a9160f81ef1a8|Forum post 0d6a9160f81ef1a8].

FossilOrigin-Name: ed8a8ebd62a319b5dabbdf67ee27141153b9899d7c8f08eeb4bdf35271015c71
 2022-07-18 13:55:21 +00:00
drh
18934137dd Fix a problem in the REGEXP extension for the {M,N} construct where M is zero. 
See [forum:/forumpost/8694e55a2c29963c|forum post 8694e55a2c29963c] for more
information.

FossilOrigin-Name: af15bb75306a4b94593b8431a34768b3de3d6689293e85ca02db16bf3e9f39e2
 2022-07-18 13:10:53 +00:00
drh
0e4ab0db7e Enhance the REGEXP extension so that the end-of-input indicate ("$") is 
allowed to occur on one branch of an OR ("|").
[forum:/forumpost/0107d5d40dd273e2|Forum post 0107d5d40dd273e2], second
issue.

FossilOrigin-Name: 3c04d21e6c632feb3bea8d1fa76bedcbfe254b0dc59865633d158a3f1bddefba
 2022-07-03 18:12:43 +00:00
drh
f28727f61e Fix the initial-prefix optimization for the REGEXP extension such that it 
works even if the prefix contains characters that require a 3-byte UTF8
encoding.  This should fix the problem reported by
[forum:/forumpost/96692f8ba5|forum post 96692f8ba5].

FossilOrigin-Name: c94595a6e15490b432f099fefbe2429fa19287f7bdc86332cba0fd1e08f65bd6
 2022-07-03 14:25:47 +00:00
drh
de30a3d2e1 Fix a bug in the regexp extension in which the "." wildcard would match 
the 0x00 terminator at the end of the comparison string.

FossilOrigin-Name: fa23108b299fc70e80540c449500e50ac6344a152f4f6b9c1b1f568bbda8f6e1
 2021-06-03 13:44:19 +00:00
drh
75f7317722 Fix the case-insensitive version of the regexp() function so that it does not 
use the prefix optimization incorrectly.
[forum:/forumpost/983b43ef8e|Forum post 983b43ef8e].

FossilOrigin-Name: 1a8e43cc1b7969c40140dd7fd481d5ffd9de80e214eb494567c286d93a2b06e5
 2021-06-03 12:31:08 +00:00
drh
248f2be91a Make "test_regexp.c" into a loadable extension and move it over to 
ext/misc/regexp.c.  Add the "load_static_extension" command for testing
purposes.

FossilOrigin-Name: 860fc393bff27045e0593c3c51bf5577accd0b79
 2013-04-23 20:10:13 +00:00
drh
b064dc33bc The \xXX escape in the test_regexp.c must be followed by exactly two hex 
digits.

FossilOrigin-Name: 82957495aa0729468a020c2a0a45ed60019b6e07
 2013-01-18 03:35:14 +00:00
drh
25846af3be More test cases for the REGEXP operator. Fix minor bugs uncovered by these 
test cases.

FossilOrigin-Name: a611c75061c8e821cb266fcb09759100d4a646b0
 2012-12-31 20:16:35 +00:00
drh
14172743a2 Add the test_regexp.c module containing a cross-platform implementation 
of the REGEXP operator.

FossilOrigin-Name: 46c8c01b751c1ea7fc02cc35e3b5bb99dbe46c4b
 2012-12-31 19:18:38 +00:00