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import scala.xml._
import scala.xml.transform._
object Test extends App {
val inputXml : Node =
<root>
<subnode>
<version>1</version>
</subnode>
<contents>
<version>1</version>
</contents>
</root>
object t1 extends RewriteRule {
override def transform(n: Node): Seq[Node] = n match {
case <version>{x}</version> if x.toString.toInt < 4 => <version>{x.toString.toInt+1}</version>
case other => other
}
}
val ruleTransformer = new RuleTransformer(t1)
println(ruleTransformer(inputXml))
}
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