diff options
| author | Karl Williamson <khw@cpan.org> | 2015-05-19 14:20:20 -0600 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2015-05-19 22:03:08 -0600 |
| commit | 6acea139a4492dc2f272bfc6de52ec8b6510da2c (patch) | |
| tree | a061234a75c035ab25017f1d1001bb224f512eae | |
| parent | 3209f71635fe28da41adf0d571cd0b621c105131 (diff) | |
| download | perl-6acea139a4492dc2f272bfc6de52ec8b6510da2c.tar.gz | |
perldelta: Rmv reference to internal flag
SCF_DO_SUBSTR is a flag internal to the current implementation of the
regular expression optimizer. There is no need to proclaim its
existence to the outside world, and is just extraneous noise.
I myself do not understand this flag, and I've spent more time looking
at this code than all but a few people likely to be reading this
perldelta. If someone who does understand it could explain it to me, I
would add comments to the code (after the freeze) to aid future readers.
| -rw-r--r-- | pod/perldelta.pod | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index a261f8842f..76aec1dddb 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -3029,10 +3029,8 @@ L<[cpan #85570]|https://rt.cpan.org/Ticket/Display.html?id=85570>. =item * -During the optimization phase of a regexp compilation, we no longer -recurse into C<GOSUB>/C<GOSTART> when the internal C<SCF_DO_SUBSTR> flag -is false. This prevents the optimizer from running "forever" and -exhausting all memory. +The optimization phase of a regexp compilation could run "forever" and +exhaust all memory under certain circumstances; now fixed. L<[perl #122283]|https://rt.perl.org/Ticket/Display.html?id=122283>. =item * |