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| author | Rafael Garcia-Suarez <rgarciasuarez@gmail.com> | 2001-11-22 12:54:16 +0000 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2001-11-23 16:41:13 +0000 |
| commit | 076988851d1cdb6cc455615593d7b9380b21955a (patch) | |
| tree | 74e549764502fa568cb83cedc33ceefbd21101ff /pod/perlretut.pod | |
| parent | 67d143eceea774b64914343793da246aa41f6fb5 (diff) | |
| download | perl-076988851d1cdb6cc455615593d7b9380b21955a.tar.gz | |
Re: [DOC PATCHES] pod cleanups
Message-Id: <slrn9vptci.klv.rgarciasuarez@rafael.kazibao.net>
p4raw-id: //depot/perl@13206
Diffstat (limited to 'pod/perlretut.pod')
| -rw-r--r-- | pod/perlretut.pod | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pod/perlretut.pod b/pod/perlretut.pod index bb2423b8af..8f7c8cdd72 100644 --- a/pod/perlretut.pod +++ b/pod/perlretut.pod @@ -2059,7 +2059,7 @@ the first alternative C<[^()]+> matching a substring with no parentheses and the second alternative C<\([^()]*\)> matching a substring delimited by parentheses. The problem with this regexp is that it is pathological: it has nested indeterminate quantifiers - of the form C<(a+|b)+>. We discussed in Part 1 how nested quantifiers +of the form C<(a+|b)+>. We discussed in Part 1 how nested quantifiers like this could take an exponentially long time to execute if there was no match possible. To prevent the exponential blowup, we need to prevent useless backtracking at some point. This can be done by |