From: Daniel DeLorme <dan-ml@...42.com>
Date: 2007-05-25T16:16:03+09:00
Subject: I think this is a regexp bug

I'd greatly appreciate if anyone could explain what's up with this:

$KCODE='u'
 >> "à" =~ /à/i
=> 0
 >> "à" =~ /[à]/i
=> 0
 >> "ā" =~ /ā/i
=> 0
 >> "ā" =~ /[ā]/i
=> nil

That has to be a bug, right?

Maybe this is a good opportunity to start looking at oniguruma. Is
anyone aware of backward compatibility issues when going from the 
regular Regexp to oniguruma?

Daniel