Using jcode you can make regular expressions UTF-8 aware


$KCODE = 'u'
require 'jcode'

class String
  def reverse
    scan(/./).reverse.join
  end
end

puts "asd".reverse

1.	Setting the $KCODE global variable to 'u' and loading jcode gives regular expressions awareness of UTF-8 characters
2.	$KCODE Demo
3.	$KCODE = 'u'
4.	Handling International Encodings
5.	Check string size for non ascii code
6.	Count non-ascii string
7.	Length of non-ascii string

Using jcode you can make regular expressions UTF-8 aware : KCODE « Development « Ruby