From: Dido Sevilla <dido.sevilla@...>
Date: 2006-10-30T00:26:49+09:00
Subject: Re: regexp to match CJK characters

On 10/29/06, Cafe Babe <0xcafebabe@163.com> wrote:
> UTF-8
>
> and
>
> $KCODE='u'
> require_dependency 'jcode',

You may need to use the Oniguruma patch. I believe this is necessary
to give regular expressions support for character sets other than
plain ASCII.

http://www.geocities.jp/kosako3/oniguruma/

If you're using Gentoo, all you need to do is remerge Ruby with the
cjk use flag turned on. For other systems, you may need to download
and apply the patch manually. See the Oniguruma site for more details.
If you're using a 1.9 Ruby, Oniguruma is already built-in.