code: public static String normalise(String s) {
  		if (sDiacritics == null) {
  			sDiacritics = Pattern.compile("\\p{InCombiningDiacriticalMarks}+");
  		}
  		return sDiacritics.matcher(Normalizer.normalize(s, NFD)).replaceAll("").toUpperCase(US);
  	}
docs: Remove diacritics from the string and convert it to upper case.