http://www.perlmonks.org?node_id=792193


in reply to Re^2: utf8::upgrade and $1
in thread utf8::upgrade and $1

I think that using $1, $_, $@, and friends as arguments to external methods/subs is always a bad idea. You just don't know what's going to be done in between regardless of issues like the one you found. So I'd say documenting the issue is all that's necessary.

By the way, I think KinoSearch is fantastic. I can't thank you enough for doing it.