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Interactive Input
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| import scala.util.continuations._ | |
| // might need to be compiled and run separately due to a bug in App | |
| object ContinuationsExample extends App { | |
| def prompt(display: String): Boolean = { | |
| print(display + " (Y/N) ") | |
| Console.readLine.trim.headOption match { | |
| case Some('Y') | Some('y') => true | |
| case Some('N') | Some('n') => false | |
| case _ => prompt(display) | |
| } | |
| } | |
| def delay(duration: Long) = | |
| shift { | |
| k: (Unit => Boolean) => | |
| do { | |
| println("%nSleeping for %d milliseconds..." format (duration)) | |
| Thread.sleep(duration) | |
| } while (k()) | |
| } | |
| println("Before reset") | |
| reset { | |
| delay(2000) | |
| prompt("Repeat?") | |
| } | |
| println("\nAfter reset") | |
| } |
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