plate parameter
          <code class="computeroutput"><span class="identifier">Derived</span></code> to do the actual
          parsing. This technique is known as the "Curiously Recurring Template
          Pattern" in template meta-programming circles. This inheritance strategy
          gives us the power of polymorphism without the virtual function overhead.
          In essence this is a way to implement compile time polymorphism.
        </p>
<p>
          The Derived parsers, <code class="computerou