"1" summary="">
    <tr>
      <th>Name</th>

      <th>Expression</th>

      <th>Precondition</th>

      <th>Semantics</th>

      <th>Postcondition</th>
    </tr>

    <tr>
      <td>operator()</td>

      <td><tt>func(next, end, tok)</tt></td>

      <td><tt>next</tt> and <tt>end</tt> are valid iterators to the same
      sequence. next is a reference the function is free to modify. tok is
      constructed.</td>

      <td>The return value indicates whether a new token was found in the
      sequence 