code: public double score(StringWrapper s,StringWrapper t) {
  		if (scaling) {
  			int minLen = Math.min( s.unwrap().length(), t.unwrap().length() );
  			return super.score(s,t) / (minLen * CHAR_EXACT_MATCH_SCORE);
  		} else {
  			return super.score(s,t);
  		}
  	}
docs: Version of distance which is possibly scaled to [0,1].