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| author | Stefan Monnier <monnier@iro.umontreal.ca> | 2023-09-27 13:29:50 -0400 |
|---|---|---|
| committer | Stefan Monnier <monnier@iro.umontreal.ca> | 2023-09-27 13:29:50 -0400 |
| commit | bc52fdd1d153b36a9da74d7aa7f1e6150ff6b2eb (patch) | |
| tree | a302e300d15378c840b9eab4f49861c375dd52f7 /test/src/regex-resources | |
| parent | 9a67540e51edca00b17de639af18989f9ecc9be9 (diff) | |
| download | emacs-bc52fdd1d153b36a9da74d7aa7f1e6150ff6b2eb.tar.gz emacs-bc52fdd1d153b36a9da74d7aa7f1e6150ff6b2eb.tar.bz2 emacs-bc52fdd1d153b36a9da74d7aa7f1e6150ff6b2eb.zip | |
* src/regex-emacs.c (analyze_first): Fix incorrect optimization
The optimization was incorrect in a particular corner case.
In this fix I just disable it conservatively for more cases because
it's not obvious how to fix it while preserving the "good" cases.
We may find a better fix by using an approach like the one
in `mutually_exhaustive_aux`, but for now this is good enough,
especially since \{..\} repetitions are not used very frequently.
* test/src/regex-resources/PTESTS: New test.
Diffstat (limited to 'test/src/regex-resources')
| -rw-r--r-- | test/src/regex-resources/PTESTS | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/test/src/regex-resources/PTESTS b/test/src/regex-resources/PTESTS index 68acc314d37..59dd4b3bc21 100644 --- a/test/src/regex-resources/PTESTS +++ b/test/src/regex-resources/PTESTS @@ -269,6 +269,7 @@ #W the expected result for \([a-c]*\)\{2,\} is failure which isn't correct 1¦3¦\([a-c]*\)\{2,\}¦abcdefg¦ 1¦3¦\([a-c]*\)\{1,\}¦abcdefg¦ +0¦0¦\([a-c]*\)\{2,\}¦gabcdefg¦ -1¦-1¦a\{64,\}¦aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa¦ # GA142 1¦3¦a\{2,3\}¦aaaa¦ |