Oops, I didn't mean to post so soon since I haven't figured out what's going on yet. I wanted to try this on 5.10 before doing anything else since this is obviously a bug. (The behaviour of \w shouldn't change based on whether it's in a char class or not.)

Well, at least it provides more details about the problem and clear instructions on how to reproduce it. Could someone run this on Perl 5.10 for me? I don't have a unix box with that version handy.

In reply to Re^2: use locale behavior depends on charset of locale? by ikegami
in thread use locale behavior depends on charset of locale? by Anonymous Monk

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