
            Grammar</a> expression allows it to be referenced later and makes
            it possible for the rule to call itself. This is one of the most important
            mechanisms and the reason behind the word "recursive" in recursive
            descent output generation.
          </p>
<h6>
<a name="spirit.karma.reference.nonterminal.rule.h1"></a>
            <span class="phrase"><a name="spirit.karma.reference.nonterminal.rule.header"></a></span><a class="link" href="rule.html#spirit.karma.refe