spell.rb

#!/usr/bin/env ruby
require 'sqlite3'
DB = SQLite3::Database.new('eo.db')

module Word
  class << self
    def tx
      {'a'=>'a','b'=>'b','c'=>'c','ĉ'=>'ch','d'=>'d','e'=>'e','f'=>'f','g'=>'g','ĝ'=>'gh','h'=>'h','ĥ'=>'hh','i'=>'i','j'=>'j','ĵ'=>'jh','k'=>'k','l'=>'l','m'=>'m','n'=>'n','o'=>'o','p'=>'p','r'=>'r','s'=>'s','ŝ'=>'sh','t'=>'t','u'=>'u','ŭ'=>'uh','v'=>'v','z'=>'z'}
    end

    def hasaudio(word)
      # cheeky: this word's letters, minus all valid letters, should be empty
      [] == (word.split('') - tx.values)
    end

    def randomword
      begin
        word = DB.get_first_value("SELECT eo FROM words ORDER BY random() LIMIT 1")
      end until hasaudio(word)
      word
    end

    def spell(word)
      mp3s = word.split('').map {|l| "Audio/#{tx[l]}.mp3"}.join(' ')
      outf = '/tmp/out.wav'
      system("sox #{mp3s} #{outf}")
      system("aucat -i #{outf}")
      system("rm #{outf}")
    end
  end
end

loop do
  word = Word::randomword
  Word::spell(word)
  print "what word was it? "
  guess = STDIN.gets.strip
  if word == guess
    puts "RIGHT!"
  else
    puts "NOPE! it was #{word}"
    Word::spell(word)
    puts "hear it now?"
    STDIN.gets.strip
  end
end