# File lib/plugins/hatena_keyword_haiku.rb, line 21
    def length
      @length ||= self.yomi.gsub(/\n|ぁ|ぃ|ぅ|ぇ|ぉ|ァ|ィ|ゥ|ェ|ォ|ゃ|ゅ|ょ|ャ|ュ|ョ/, '').split(//).length
    end