://sphotos-b.xx.fbcdn.net/hphotos-snc6/377635_345841315524300_1034340001_n.jpg

ninja.rb

# inspired by https://sphotos-b.xx.fbcdn.net/hphotos-snc6/377635_345841315524300_1034340001_n.jpg

class NinjaName
  class << self
  MAPPING = {
    "a" => "ka" ,
    "b" => "zu" ,
    "c" => "mi" ,
    "d" => "te" ,
    "e" => "ku" ,
    "f" => "lu" ,
    "g" => "ji" ,
    "h" => "ri" ,
    "i" => "ki" ,
    "j" => "zu" ,
    "k" => "me" ,
    "l" => "ta" ,
    "m" => "rin",
    "n" => "to" ,
    "o" => "mo" ,
    "p" => "no" ,
    "q" => "ke" ,
    "r" => "shi",
    "s" => "ari",
    "t" => "chi",
    "u" => "do" ,
    "v" => "ru" ,
    "w" => "mei",
    "x" => "na" ,
    "y" => "fu" ,
    "z" => "zi"
  }
    def convert(name)
      ninja_name = "" ; i = 0
      name.each_char {|c|
        ninja_chars = MAPPING[c]
        if ninja_chars
          ninja_name << ninja_chars
          i += 1
          unless i == name.size # last letter
            ninja_name << "-" 
          end
        else
          raise "Could not find mapping for #{c}"
        end
      }
      ninja_name
    end
    def usage
      "ninja.rb <name_to_convert>"
    end
  end
end

if __FILE__==$0
  if ARGV.empty?
    puts NinjaName.usage
  else
    puts NinjaName.convert(ARGV[0])
  end
end