gistfile1.txt

class FogFactor
  class << self

    def syllable_count(raw_word)
      word = raw_word.gsub(/[^a-zA-Z]/,'')
      syllables = word.scan(/[^aeiouy]+y|[^aeiouy]*(ai|au|ea|ee|ei|ie|io|oa|oi|oo|ou|[aeiou])|([^aeiouy]+|y)(ai|au|ea|ee|ei|ie|io|oa|oi|oo|ou|[aeiou])/i)
      if syllables.size > 1 and word.match(/(e|es)$/)
        syllables.size - 1
      else
        syllables.size
      end
    end

    def fog_factor(s)
      words = s.scan(/\S+/)
      sentences = s.split(/[.!?]+/)
      trisyllables = words.select { |w| syllable_count(w) > 2 }
      (words.size.to_f/sentences.size + trisyllables.size.to_f/words.size) * 0.4
    end
    
  end
end