gistfile1.rb

class Hash
  def method_missing(name, *args)
    match = /get_(.*)/.match(name.to_s)
    if match and match[1]
      puts match[1]
      self.class_eval do
        define_method(name) do
          return self[match[1]]
        end
      end
      puts self.methods.sort
      self.send(name)
    end

    match = /set_(.*)=/.match(name.to_s)
    if match and match[1]
      return self[match[1]] = args[0]
    end

    super
  end
end

things = {'alpha' => 1, 'beta' => 2}
puts things.get_alpha
puts things.get_beta
things.set_gamma = 6
puts things.get_gamma