Iterator-free.scala

  def map[T](f: (Array[String]) => T):List[T] = {
    reader.readNext match {
      case fields:Array[String] => f(fields) :: map(f)
      case _ => Nil
    }
  }


  def map[T](f: (Array[String]) => T):List[T] = {
    def _map[T](f: (Array[String] => T), reader:CSVReader):List[T] = {
      reader.readNext match {
        case fields:Array[String] => f(fields) :: _map(f, reader)
        case _ => Nil
      }
    }
    val reader = new CSVReader(new FileReader(file), '\t', '"')
    try {
      _map(f, reader)
    } finally {
      reader.close()
    }
  }