progs/app7.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Thu, 26 Nov 2015 00:11:10 +0000 (2015-11-26)
changeset 386 31295bb945c6
parent 295 19f23c4c2167
permissions -rw-r--r--
update
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
}