span><span class="special">]</span></font></code>
</pre>
<p>
      Or if <b>F</b> is a function object (a functor):
  </p>
    
<pre><code><font color="#000000">    </font></code><code><font color="#000000"><span class=
"identifier">P</span><span class="special">[</span><span class=
"identifier">F</span><span class="special">]</span></font></code>
</pre>
<p>
      The function/functor signature depends on the type of the parser to which
      it is attached. The parser <tt>real_p</tt> passes a single argume