gistfile1.txt

class MorseEncoder
  TRANSLATIONS = {
    :a => "._",
    :b => "_...",
    :c => "_._.",
    :d => "_..",
    :e => "."
  }
  
  def method_missing(m, *args)
    @translations.unshift TRANSLATIONS[m]
  end
  
  def encode(&block)
    @translations = []
    instance_eval(&block)
    @translations.join(" ")
  end
end
morse = MorseEncoder.new
puts morse.encode { b e a d }