Interactive Input

gistfile1.scala

import scala.util.continuations._

object AskMe {
  def sleep(delay: Long) = shift{ k: (Unit => Int) =>
    val runnable = new Runnable {
      var leave = false
      def run = {
        while( ! leave ) {
          Thread.sleep(delay)
          val res = k()
          res match {
            case 0 => leave = true
            case 1 => leave = false
          }
        }
      }
    }
    val thread = new Thread(runnable)
    thread.start
  } // end of 'shift'

  def main(args: Array[String]) = {
    println("Before reset")
    reset {
      println("Before sleep")
      sleep(2000)
      println("Enter 1 to continue or 0 to exit")
      val x = readInt
      x match {
        case 0 => { println("You've opted to go, well bye bye for now"); 0 }
        case 1 => { println("You want to go on, well here goes"); 1 }
      }
    } // end of 'reset'
    println("After reset")
  }
}