r">b</span></code>
                </p>
              </td>
<td>
                <p>
                  Matches a word boundary (the start or end of a word).
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <code class="computeroutput"><span class="special">\</span><span class="identifier">B</span></code>
                </p>
              </td>
<td>
                <p>
                  Matches only when not at a word boundary.
                </p>
             