object Splitterator {
  class Splitterator[T](it: Iterator[T]) {
    def splitWhen(f: T => Boolean): Iterator[Iterator[T]] = {
      new Iterator[Iterator[T]] {
        override def hasNext: Boolean = it.hasNext

        override def next(): Iterator[T] = it.takeWhile(f)
      }
    }
  }

  implicit def splitterator[T](it: Iterator[T]) = new Splitterator[T](it)
}