progs/app7.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Sat, 17 Oct 2015 11:24:41 +0100 (2015-10-17)
changeset 355 a259eec25156
parent 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
}