Hacklog: Blogamundo — poking holes in the language barrier since approximately 1 month from now

$ cat unicode.rb
# -*- coding: utf-8 -*-

s = “ABCあいう”
puts “s: #{s}”
puts “s[0]: #{s[0]}”
puts “s[3,1]: #{s[3,1]}”

puts “s.length: #{s.length}”
puts “s.reverse: #{s.reverse}”
puts “s.encoding: #{s.encoding}”

$ ruby1.8 unicode.rb
s: ABCあいう
s[0]: 65
s[3,1]:
s.length: 12
s.reverse: ��㄁め�CBA
unicode.rb:10: undefined method `encoding’ for “ABC\343\201\202\343\201\204\343\201\206″:String (NoMethodError)

$ ruby1.9 unicode.rb
s: ABCあいう
s[0]: A
s[3,1]: あ
s.length: 6
s.reverse: ういあCBA
s.encoding: UTF-8
$ # yay!

Big ups to Matz.