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 = unbackQuoteChars(string);
      }
    }

    return string;
  }