From: Carlos <angus@...>
Date: 2003-05-29T01:18:41+09:00
Subject: Re: ruby unicode./encoding support

> Use the 'jcode' library, and set the encoding to unicode with the -K 
> option (or by setting the KCODE variable). jcode overrides most of the 
> methods in class String so that they support the encoding you set with 
> the -K option. The exception is the length and size methods: it leaves 
> these untouched and instead gives you two new methods, jlength and jsize:
[...]

And add 'unicode' and you can also compare, capitalize, etc...

irb(main):001:0> $KCODE='u'
=> "u"
irb(main):002:0> require 'jcode'
=> true
irb(main):003:0> a="č"
=> "č"
irb(main):004:0> a.upcase
=> "č"
irb(main):005:0> require 'unicode'
=> true
irb(main):006:0> Unicode.upcase a
=> "Č"
irb(main):007:0>