I'm the author of re::engine::RE2.

As for motivation it was mostly to learn a bit about this area of Perl, however I do see uses for RE2 due to its matching being much faster than Perl's matching.

For example combined with an mmaped scalar I can match a regexp on 1 GiB of text in about 10 seconds (on a core 2 duo), Perl's RE doesn't even come close to that. You can see how Google's Code search can be so fast.

There's some issues with Perl's UTF-8 handling (frankly it's insane), but once I've worked around that re::engine::RE2 should be nearly a drop in replacement for Perl's RE, but faster.

In reply to Re: Pluggable regex engine in Perl by dgl
in thread Pluggable regex engine in Perl by szabgab

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