ruby IPA mapping v3

module Hungarian
  module Phonology
    class IPA
      @chars = { "a" => "ɒ", "á" => "aː", "o" => "o", "ó" => "oː",
                 "u" => "u", "ú" => "uː", "e" => "ɛ", "é" => "eː",
                 "i" => "i", "í" => "iː", "ö" => "ø", "ő" => "øː",
                 "ü" => "y", "ű" => "yː"
               }
      def self.to_ipa(letters)
        letters.gsub(Regexp.union(@chars.keys),@chars)
      end
    end
  end
end
#outputs: "ɛuːɛaː"
p Hungarian::Phonology::IPA.to_ipa("eúeá")