" headers="construct characters"><tt>\e</tt></td>
     <td headers="matches">The escape character (<tt>'&#92;u001B'</tt>)</td></tr>

 <tr><td valign="top" headers="construct characters"><tt>\c</tt><i>x</i></td>
     <td headers="matches">The control character corresponding to <i>x</i></td></tr>

 <tr><th>&nbsp;</th></tr>
 <tr align="left"><th colspan="2" id="classes">Character classes</th></tr>

 <tr><td valign="top" headers="construct classes"><tt>[abc]</tt></td>

     <td headers="matches"><tt>a</tt>, <tt