Upside down tweet / earthquake plugin

upsidedown.rb

# -*- coding: utf-8 -*-
# Upside down tweet / earthquake plugin
#
# upd: 
#
require 'pp'
class Upd
  @@values = {
      'a'=>'ɐ','b'=>'q','c'=>'ɔ','d'=>'p','e'=>'ǝ','f'=>'ɟ','g'=>'ƃ','h'=>'ɥ','i'=>'ı',
      'j'=>'ɾ','k'=>'ʞ','l'=>'l','m'=>'ɯ','n'=>'u','o'=>'o','p'=>'d','q'=>'b','r'=>'ɹ',
      's'=>'s','t'=>'ʇ','u'=>'n','v'=>'ʌ','w'=>'ʍ','x'=>'x','y'=>'ʎ','z'=>'z',
      'Z'=>'Z','Y'=>'⅄','X'=>'X','W'=>'M','V'=>'ᴧ','U'=>'∩','T'=>'⊥','S'=>'S','R'=>'ᴚ',
      'Q'=>'Ό','P'=>'Ԁ','O'=>'O','N'=>'ᴎ','M'=>'W','L'=>'⅂','K'=>'⋊','J'=>'ſ','I'=>'I',
      'H'=>'H','G'=>'⅁','F'=>'Ⅎ','E'=>'Ǝ','D'=>'ᗡ','C'=>'Ↄ','B'=>'ᗺ','A'=>'∀',
      '?'=>'¿','!'=>'¡','？'=>'¿','！'=>'¡','_'=>'¯'
    }
  
  def isay ( m ) 
    str = ''
    m.split(//).each { |c| 
      tmp = c
      if ( @@values.key?(c) )
        tmp = @@values[c]
      end
      str = tmp + str
    }   
    str 
  end 
end
 
Earthquake.init do
  command :upd do |m| 
    boo = Upd.new;
    ret = boo.isay(m[1])
    input(ret)
  end 
end