 will need to get under the hood. It's nice 
  that we know what we are dealing with when that need comes. We will need to 
  go low-level and call the parser's parse member function directly. </p>
<p>If we wish to work on the <b>character level</b>, the procedure is quite simple:</p>
<pre><span class=identifier>    </span><span class=identifier>scanner</span><span class=special>&lt;</span><span class=identifier>IteratorT</span><span class=special>&gt; </span><span class=identifier>scan</span><span class=sp