</span></font></code>
</pre>
<p>
      The parse function returns an object (called <tt>parse_info</tt>) that
      holds, among other things, the result of the parse. In this example, we
      need to know:
  </p>
    <blockquote>
      <p>
        <img src="theme/bullet.gif" width="12" height="12"> Did the parser
        successfully recognize the input <tt>str</tt>?<br>
         <img src="theme/bullet.gif" width="12" height="12"> Did the parser
        <b>fully</b> parse and consume the input up to its e