Scopt range parser

scopt-range-parser.scala

implicit val listIntRead: scopt.Read[List[Int]] =
  scopt.Read.reads { str =>
    val parts = str.split(",").map(_.trim).toList
    parts.flatMap { p =>
      if (p.contains("-")) {
        val (start :: end :: Nil) = p.split("-").map(_.trim.toInt).toList
        Range(start, end + 1).toList
      }
      else p.toInt :: Nil
    }
  }

For dealing with params such as --cols 1-5,7,9-10