docs: public static String unquote(String string) {
      if (string.startsWith("'") && string.endsWith("'")) {
        string = string.substring(1, string.length() - 1);
        
        if ((string.indexOf("\\n") != -1) || (string.indexOf("\\r") != -1) || 
  	  (string.indexOf("\\'") != -1) || (string.indexOf("\\\"") != -1) || 
  	  (string.indexOf("\\\\") != -1) || 
  	  (string.indexOf("\\t") != -1) || (string.indexOf("\\%") != -1) ||
  	  (string.indexOf("\\u001E") != -1)) {
  	string = unbackQuoteChars(string);
        }
      }
  
      return string;
    }