docs: protected static void parseCondFlag(String line, RewriteCond condition, String flag) {
          if (flag.equals("NC") || flag.equals("nocase")) {
              condition.setNocase(true);
          } else if (flag.equals("OR") || flag.equals("ornext")) {
              condition.setOrnext(true);
          } else {
              throw UndertowServletLogger.ROOT_LOGGER.invalidRewriteFlags(line, flag);
          }
      }