gistfile1.txt

def translate(word)

  word_list = word.split(/ /)
  letters = ('a'..'z').to_a
	vowels = ['a', 'e', 'i', 'o', 'u']
	consonants = letters - vowels
	result = ""
    
  word_list.each do |word|
  
    if vowels.include?(word[0]) 			#translate word beginning with vowels.
        result << word + "ay"
    elsif consonants.include?(word[0]) 
    
      if word.include?("qu")				#word contains 'qu'.
      
        if word[0..1].include?("qu")	#word begins with 'qu'.
          result << word[2..-1] + word[0..1] + "ay"
        else							#'qu' is somewhere else in the word.
          position = word.index("qu")
          result << word[(position + 2)..-1] + word[0..(position-1)] + "quay"
        end

        
      elsif consonants.include?(word[1]) 

        if consonants.include?(word[2]) #word begins with 3 consonants.
          result << word[3..-1] + word[0..2] + "ay"
        else							#word begins with 2 consonants.
          result << word[2..-1] + word[0..1] + "ay"
        end
      else								#word begins with 1 consonant.
        result << word[1..-1] + word[0] + "ay"
      end
      
    else
      result << word 						#word doesn't begin with a vowel or consonant.
    end
    
    result << " " unless word == word_list.last #add space after words except the last one.
	end
  
	return result
  
end

puts translate("square")