progs/app7.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Sat, 13 Sep 2014 04:30:25 +0100 (2014-09-13)
changeset 242 35104ee14f87
parent 169 57df3d7b4a25
child 295 19f23c4c2167
permissions -rw-r--r--
updated
abstract class Parser[I, T] {
  def parse(ts: I): Set[(T, I)]

  def parse_all(ts: I) : Set[T] =
    for ((head, tail) <- parse(ts); if (tail.isEmpty)) 
      yield head
}