d="email" class="email"><a href="mailto:calfeld@qualys.com">calfeld@qualys.com</a></span><br>
<div id="toc" class="toc2">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="#_introduction">Introduction</a></li>
<li><a href="#_expressions">Expressions</a></li>
<li><a href="#_action_code_predicate_code">Action: <code>predicate</code></a></li>
<li><a href="#_action_code_set_predicate_vars_code">Action: <code>set_predicate_vars</code></a></li>
</ul>
</div>
</div>
<div id="content">
