    "identifier">real_p</span><span class="special">);</span></font></code>
</pre>
<p>
      Not too exciting, just an assignment like any other C++ expression you've
      used for years. The cool thing about storing a parser in a rule is this:
      rules are parsers, and now you can refer to it <b>by name</b>. (In this
      case the name is <tt><b>r</b></tt>). Notice that this is now a full
      assignment expression, thus we terminate it with a semicolon,
      "<tt>;</tt>".
  </p>
    <p>
      That'