ling.on_error"></a></span><a class="link" href="error_handling.html#spirit_x3.tutorials.error_handling.on_error">on_error</a>
      </h5>
<p>
        <code class="computeroutput"><span class="identifier">on_error</span></code> is the counterpart
        of <code class="computeroutput"><span class="identifier">on_success</span></code>, as discussed
        in the <a class="link" href="annotation.html" title="Annotations - Decorating the ASTs">annotations example</a>.
        While <code class="computeroutput