code: def fitness_and_quality_parsed(mime_type, parsed_ranges)
      best_fitness = -1
      best_fit_q = 0
      target_type, target_subtype, target_params = parse_media_range(mime_type)
  
      parsed_ranges.each do |type,subtype,params|
        if (type == target_type or type == "*" or target_type == "*") and
            (subtype == target_subtype or subtype == "*" or target_subtype == "*")
          param_matches = target_params.find_all { |k,v| k != "q" and params.has_key?(k) and v == params[k] }.length
  
          fitness = (type == target_type) ? 100 : 0
          fitness += (subtype == target_subtype) ? 10 : 0
          fitness += param_matches
  
          if fitness > best_fitness
            best_fitness = fitness
            best_fit_q = params["q"]
          end
        end
      end
  
      [best_fitness, best_fit_q.to_f]
    end
docs: Find the best match for a given mime-type against a list of
    media_ranges that have already been parsed by #parse_media_range
  
   Returns the fitness and the "q" quality parameter of the best match,
    or [-1, 0] if no match was found. Just as for #quality_parsed,
    "parsed_ranges" must be an Enumerable of parsed media ranges.