Help for this page
A zero-width negative look-behind assertion.
For example `/(?<!bar)foo/' matches any
occurrence of "foo" that does not follow "bar".
Works only for fixed-width look-behind.
perl -ne 'print if /(?<!time)\(/' < ippl.log > ippl.noteworthy
1. Keep it simple
2. Just remember to pull out 3 in the morning
3. A good puzzle will wake me up
Many. I like to torture myself
0. Socks just get in the way
Results (309 votes). Check out past polls.