<?xml version='1.0'?>

<doc>

  <tag attr1="value1" attr2="value2">

    <nested>Text node</nested>

  </tag>

  <empty/>

</doc>

(*TOP* (*PI* xml "version='1.0'")

 (doc

   (tag (@ (attr1 "value1") (attr2 "value2"))

     (nested "Text node")

   )

   (empty)

 ))