>','</span>
    <span class="special">&gt;</span>   <span class="identifier">person</span> <span class="special">&gt;</span> <span class="char">','</span>
    <span class="special">&gt;</span>   <span class="identifier">double_</span>
    <span class="special">&gt;</span>   <span class="char">'}'</span>
    <span class="special">;</span>
</pre>
<p>
        You will have some "deterministic points" in the grammar. Those
        are the places where backtracking <span class="bold"><strong>cannot</strong></spa