
      "special">(</span><span class="identifier">ch_p</span><span class=
      "special">(</span><span class="literal">','</span><span class=
      "special">)</span> <span class="special">&gt;&gt;</span> <span class=
      "identifier">real_p</span><span class="special">)</span></code>
</pre>
<p>
      Note that this is a case where the parentheses are necessary. The Kleene
      star encloses the complete expression above.
  </p>
    <h4>
      <b><strong>Step 2. </strong>Using a Parser (now that it's cr