docs: public static void esc(StringBuffer in) {
  		if (in == null) {
  			return;
  		}
  		replaceAll(in, "\\", "\\\\");
  		replaceAll(in, "'", "\\'");
  		replaceAll(in, "\"", "\\\"");
  		replaceAll(in, "\n", "\\n");
  		replaceAll(in, "\r", "\\r");
  	}