Quicksort in Scala, for my blog

Quicksoft.scala

object Quicksort extends App {
  val inputStream = io.Source.fromInputStream(System.in)
  val data = inputStream.getLines().toStream map (_.toInt)

  quicksort(data) foreach { println(_) }

  def quicksort(x: Stream[Int]): Stream[Int] = if (x.isEmpty) Stream() else {
    val pivot = x.head
    val (a, b) = x.tail.partition(_ <= pivot)
    quicksort(a) #::: pivot #:: quicksort(b)
  } 
}