module Mct

# File lib/mct.rb, line 4
def self.decode(text, short='.', longer='-')
  table = {
    "#{short}#{longer}"     => "A",
    "#{longer}#{short}#{short}#{short}"   => "B",
    "#{longer}#{short}#{longer}#{short}"   => "C",
    "#{longer}#{short}#{short}"    => "D",
    "#{short}"      => "E",
    "#{short}#{short}#{longer}#{short}"   => "F",
    "#{longer}#{longer}#{short}"    => "G",
    "#{short}#{short}#{short}#{short}"   => "H",
    "#{short}#{short}"     => "I",
    "#{short}#{longer}#{longer}#{longer}"   => "J",
    "#{longer}#{short}#{longer}"    => "K",
    "#{short}#{longer}#{short}#{short}"   => "L",
    "#{longer}#{longer}"     => "M",
    "#{longer}#{short}"     => "N",
    "#{longer}#{longer}#{longer}"    => "O",
    "#{short}#{longer}#{longer}#{short}"   => "P",
    "#{longer}#{longer}#{short}#{longer}"   => "Q",
    "#{short}#{longer}#{short}"    => "R",
    "#{short}#{short}#{short}"    => "S",
    "#{longer}"      => "T",
    "#{short}#{short}#{longer}"    => "U",
    "#{short}#{short}#{short}#{longer}"   => "V",
    "#{short}#{longer}#{longer}"    => "W",
    "#{longer}#{short}#{short}#{longer}"   => "X",
    "#{longer}#{short}#{longer}#{longer}"   => "Y",
    "#{longer}#{longer}#{short}#{short}"   => "Z",
    "#{longer}#{longer}#{longer}#{longer}#{longer}"  => "0",
    "#{short}#{longer}#{longer}#{longer}#{longer}"  => "1",
    "#{short}#{short}#{longer}#{longer}#{longer}"  => "2",
    "#{short}#{short}#{short}#{longer}#{longer}"  => "3",
    "#{short}#{short}#{short}#{short}#{longer}"  => "4",
    "#{short}#{short}#{short}#{short}#{short}"  => "5",
    "#{longer}#{short}#{short}#{short}#{short}"  => "6",
    "#{longer}#{longer}#{short}#{short}#{short}"  => "7",
    "#{longer}#{longer}#{longer}#{short}#{short}"  => "8",
    "#{longer}#{longer}#{longer}#{longer}#{short}"  => "9",
    "#{longer}#{longer}#{short}#{short}#{longer}#{longer}" => ",",
    "#{longer}#{longer}#{longer}#{short}#{short}#{short}" => ":",
    "#{short}#{short}#{longer}#{longer}#{short}#{short}" => "?",
    "#{short}#{longer}#{longer}#{longer}#{longer}#{short}" => "\'",
    "#{longer}#{short}#{short}#{short}#{short}#{longer}" => "-",
    "#{longer}#{short}#{short}#{longer}#{short}"  => "/",
  }
  
  result = ''
  
  text = text.split(" ")
  text.each do |c|
    if table.has_key?(c)
      result += table[c]
    else
      result += " #{c} "
    end
  end
  return result
end