code: function autoSelectFromC(string) {
  	var cMatch = matchSetC(string);
  	var length = cMatch.length;
  
  	if (length === string.length) {
  		return string;
  	}
  
  	string = string.substring(length);
  
  	// Select A/B depending on the longest match
  	var isA = matchSetALength(string) >= matchSetBLength(string);
  	return cMatch + String.fromCharCode(isA ? 206 : 205) + autoSelectFromAB(string, isA);
  }
docs: CODE128C