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object Test {
import scala.xml.{Node,HasKeyValue}
def domatch(x:Node): Node = {
val hasBar = new HasKeyValue("bar")
x match {
case Node("foo", hasBar(z), _*) => z
case _ => null
}
}
def main(args: Array[String]): Unit = {
println(domatch(<foo bar="baz"><hi/></foo>))
println(domatch(<foo bingo="donkey"><hi/></foo>))
//
// assert(domatch(<foo bar="baz"><hi/></foo>).toString == "baz")
// assert(domatch(<foo bar="baz2"><hi/></foo>) == null)//, domatch(<foo bar="baz2"><hi/></foo>))
}
}
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