                   </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:4STLRAAV7GrammarV8validate4ruleyAB4RuleV_tKF"></a>
                    <a name="//apple_ref/swift/Method/validate(rule:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:4STLRAAV7GrammarV8validate4ruleyAB4RuleV_tKF">validate(rule:)</a>
                    </code>
                  </div>
      