On Tue, 31 Mar 2015, Joel Uckelman wrote: > When I try this with PCRE 8.33 on Fedora 20, I get what appears to be an > infinite loop: > > echo -n a | pcregrep -o '(?<=\Ka)' > > pcregrep prints 'a', one per line, until I kill it.
It seems that fuzzing is in fashion. I have received several bug reports recently that resulted from fuzzers, which are clearly good at inventing weird patterns that stress the code better than human-invented tests. I will look at this soon and report back. (But a holiday weekend is about to happen; I might get to it this week, but it may be next week.) Philip -- Philip Hazel -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
