 (Range)</td></tr>
<tr><td><a href="#op-pow"><code>patt^n</code></a></td>
  <td>Matches at least <code>n</code> repetitions of <code>patt</code></td></tr>
<tr><td><a href="#op-pow"><code>patt^-n</code></a></td>
  <td>Matches at most <code>n</code> repetitions of <code>patt</code></td></tr>
<tr><td><a href="#op-mul"><code>patt1 * patt2</code></a></td>
  <td>Matches <code>patt1</code> followed by <code>patt2</code></td></tr>
<tr><td><a href="#op-add"><code>patt1 + patt2</code></a></td>
  <td>Matches <code>pat