           </p>
                </td>
<td>
                  <p>
                    Sets the current expression to <span class="emphasis"><em>p</em></span>, if <span class="emphasis"><em>icase</em></span>
                    is true then matching is insensitive to case, otherwise it is
                    sensitive to case. Throws <a class="link" href="../bad_expression.html" title="bad_expression"><code class="computeroutput"><span class="identifier">bad_expression</span></code></a> on failure.
          