val xml =
<feed>
    <entry>
        <updated>2015-1-1</updated>
        <service>
            <profileUrl>url</profileUrl>
            <id>id</id>
            <name>name</name>
        </service>
    <title>ddd</title>
    </entry>
</feed>;
  def ls(elem: scala.xml.Elem): scala.xml.Elem = {
    elem match {
      case <feed> c@_* </feed> =>
        <fee> ls(c) </fee>
      case <entry> c@_* </entry> =>
        <entry> ls(c) </entry>
      case <service><name>n@_*</name></service> =>
        println( elem.child.filter(n => n.label == "name"));
        <service><name>n</name></service>
      case <service>c@_*</service> =>
        <service>ls(c)</service>
      case _ =>
        println(elem); elem

    }
  }
  ls(xml);