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Issue #23622: Unknown escapes in regular expressions that consist of `'\'`

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and ASCII letter now raise a deprecation warning and will be forbidden in
Python 3.6.
This commit is contained in:
Serhiy Storchaka 2015-03-24 22:58:14 +02:00
parent 793c14ea29
commit a54aae0683
6 changed files with 60 additions and 19 deletions
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6
Lib/test/re_tests.py
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@ -87,7 +87,7 @@ tests = [
(r'[\a][\b][\f][\n][\r][\t][\v]', '\a\b\f\n\r\t\v', SUCCEED, 'found', '\a\b\f\n\r\t\v'),
# NOTE: not an error under PCRE/PRE:
(r'\u', '', SYNTAX_ERROR), # A Perl escape
(r'\c\e\g\h\i\j\k\m\o\p\q\y\z', 'ceghijkmopqyz', SUCCEED, 'found', 'ceghijkmopqyz'),
# (r'\c\e\g\h\i\j\k\m\o\p\q\y\z', 'ceghijkmopqyz', SUCCEED, 'found', 'ceghijkmopqyz'),
(r'\xff', '\377', SUCCEED, 'found', chr(255)),
# new \x semantics
(r'\x00ffffffffffffff', '\377', FAIL, 'found', chr(255)),
@ -607,8 +607,8 @@ xyzabc
# new \x semantics
(r'\x00ff', '\377', FAIL),
# (r'\x00ff', '\377', SUCCEED, 'found', chr(255)),
(r'\t\n\v\r\f\a\g', '\t\n\v\r\f\ag', SUCCEED, 'found', '\t\n\v\r\f\ag'),
('\t\n\v\r\f\a\g', '\t\n\v\r\f\ag', SUCCEED, 'found', '\t\n\v\r\f\ag'),
(r'\t\n\v\r\f\a', '\t\n\v\r\f\a', SUCCEED, 'found', '\t\n\v\r\f\a'),
('\t\n\v\r\f\a', '\t\n\v\r\f\a', SUCCEED, 'found', '\t\n\v\r\f\a'),
(r'\t\n\v\r\f\a', '\t\n\v\r\f\a', SUCCEED, 'found', chr(9)+chr(10)+chr(11)+chr(13)+chr(12)+chr(7)),
(r'[\t][\n][\v][\r][\f][\b]', '\t\n\v\r\f\b', SUCCEED, 'found', '\t\n\v\r\f\b'),