morse translator

gistfile1.rb

# BUCKET = ::AWS::S3::Bucket.new(AWS_CONFIG["medium_bucket"])
#
# derivatives = Derivative.where(label: 'high_res_proxy_mp4', upload_complete: nil)
#
# derivatives.inject([]) do |array, derivative|
#   s3_file = BUCKET.objects[derivative.file_path] rescue nil
#   if s3_file && s3_file.exists? && s3_file.content_length == derivative.file_size
#     array << derivative
#   end
#   array
# end
# words = message.split("   ")
class MorseTranslator
  def self.to_text(message)
    self.new(message).text
  end 
  
  def self.to_morse(message)
    self.new(message).morse
  end
  
  def initialize(message)
    @message = message
  end
  
  def text    
    words(@message).inject(""){|translated_text, word|  translated_text + translate_word(word) + " " }.downcase
  end
  
  def morse
    @message.split("").map(&:upcase).map{|character| table[character] }.join(" ")
  end
  
  def words(message)
    message.split("   ")
  end
  
  def table      
    table = {
      "A" => ".-",
      "B" =>  "-...",
      "C" => "-.-.",
      "D" => "-..",
      "E" => ".",
      "F" => "..-.",
      "G" => "--.",
      "H" => "....",
      "I" => "..",
      "J" => ".---",
      "K" => "-.-",
      "L" => ".-..",
      "M" => "--",
      "N" => "-.",
      "O" => "---",
      "P" => ".--.",
      "Q" => "--.-",
      "R" => ".-.",
      "S" => "...",
      "T" => "-",
      "U" => "..-",
      "V" => "...-",
      "W" => ".--",
      "X" => "-..-",
      "Y" => "-.--",
      "Z" => "--..",
      "0" => "-----",
      "1" => ".----",
      "2" => "..---",
      "3" => "...--",
      "4" => "....-",
      "5" => ".....",
      "6" => "-....",
      "7" => "--...",
      "8" => "---..",
      "9" => "----.",
      " " => "  "
    }
    table.default("")
    table
  end
  
  def translate_word(word)
    table.default = "*"
    characters = word.split(" ")
    characters.map{|c| table.invert[c] }.join("")
  end
end
plain_message = "The sky above the port was the color of television, tuned to a dead channel."
morse_message = "- .... .    ... -.- -.--    .- -... --- ...- .    - .... .    .--. --- .-. -    .-- .- ...    - .... .    -.-. --- .-.. --- .-.    --- ..-.    - . .-.. . ...- .. ... .. --- -.     - ..- -. . -..    - ---    .-    -.. . .- -..    -.-. .... .- -. -. . .-.. "

puts MorseTranslator.to_text(morse_message)

puts MorseTranslator.to_morse(plain_message)