<ns0:scxml 
    datamodel="ecmascript"
    xmlns:ns0="http://www.w3.org/2005/07/scxml" version="1.0" name="root">
  <ns0:state id="A">
    <ns0:onentry>
      <ns0:log expr="&quot;entering A&quot;"/>
    </ns0:onentry>
    <ns0:onexit>
      <ns0:log expr="&quot;exiting A&quot;"/>
    </ns0:onexit>
    <ns0:transition target="B" event="e1">
      <ns0:log expr="&quot;doing A-&gt;B transition&quot;"/>
    </ns0:transition>
  </ns0:state>
  <ns0:state id="B">
    <ns0:transition target="A" event="e2"/>
  </ns0:state>
</ns0:scxml>