
</h4></div></div></div>
<p>
          The example in the previous section was very simplistic. It only recognized
          data, but did nothing with it. It answered the question: "Did the
          input match?". Now, we want to extract information from what was parsed.
          For example, we would want to store the parsed number after a successful
          match. To do this, you will need <span class="emphasis"><em>semantic actions</em></span>.
        </p>
<p>
          Semantic actions may be atta