e="boost_test.utf_reference.rt_param_reference.run_test.acceptable_values"></a></span><a class="link" href="run_test.html#boost_test.utf_reference.rt_param_reference.run_test.acceptable_values">Acceptable
          values</a>
        </h5>
<p>
          <a class="link" href="../rt_param_reference.html#regular_param_value">String</a> value representing single
          filter or a set of filters separated by ':'. The following grammar productions
          describe the syntax of filters:
        </p>
<pre cl