// package foo
import scala.xml._
object Test {
def updateNodes(ns: Seq[Node]): Seq[Node] =
for(subnode <- ns) yield subnode match {
case {_} if true => abc
case Elem(prefix, label, attribs, scope, children @ _*) =>
Elem(prefix, label, attribs, scope, updateNodes(children) : _*)
case other => other
}
def main(args: Array[String]): Unit = {
updateNodes()
}
}