<xpp>

<!-- Define the XFeline class -->

<class name="XFeline" inherit="">

<construct/>

<scope type="public">

<var type="int" name="pi"/>

</scope>

</class>

<!-- Instantiate the MyNode object as an instance of the abstract class Node -->

<!-- Note that MyNode contains Animals, which in turn contains cats and dogs -->

<node processcode="true" construct="true" name="MyNode">

<Animals>

<cats age="old" class="XFeline" construct="false" var_int_pi="3.14">5</cats>

<dogs>4</dogs>

</Animals>

</node>

<!-- Set the value of cats to be the value of dogs -->

<eval object="MyNode/Animals/cats">

<eval>

<parm type="string" name="Parm0">

<eval object="MyNode/Animals/dogs"/>

</parm>

<expr>Parm0</expr>

</eval>

</eval>

<!-- Write the age attribute of cats -->

<xout processcode="true">

<eval>

<parm type="string" name="Parm0">

<eval object="MyNode/Animals/cats" attribute="age"/>

</parm>

<expr>"\r\nage = " + Parm0</expr>

</eval>

</xout>

<!-- Write the pi member of cats -->

<xout processcode="true">

<eval>

<parm type="int" name="Parm0">

<eval object="MyNode/Animals/cats" member="pi"/>

</parm>

<expr>"\r\npi = " + Parm0</expr>

</eval>

</xout>

</xpp>