nts">  <li class="argument">TAG</li>    <li class="argument lambda-list-keyword">&amp;REST</li>  </ul>  <a class="source-link" href="https://github.com/Shinmera/clip/blob/64eedbbf637a874080bfcd351b69ee6d58588d7f/tag-processors.lisp#L11">Source</a>  </header> <div class="docstring"><pre>Returns the processor function for the requested tag if one is registered.
Otherwise returns NIL. See *TAG-PROCESSORS*.</pre></div> </article> </li>  <li> <article class="definition function callable" id="FUNCTION CLIP:(SETF 