File: patmat-seqs.scala

package info (click to toggle)
scala 2.11.12-6
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 62,924 kB
  • sloc: javascript: 28,808; java: 13,415; xml: 3,135; sh: 1,620; python: 756; makefile: 38; awk: 36; ansic: 6
file content (42 lines) | stat: -rw-r--r-- 792 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
object Test {
  def f1(x: Any) = x match {
    case Seq(1, 2, 3) => "s3"
    case Seq(4, 5) => "s2"
    case Seq(7) => "s1"
    case Nil => "s0"
    case Seq(_, _, _, _, _, x: String) => "ss6"
    case _ => "d"
  }

  def f2(x: Any) = x match {
    case Seq("a", "b", _*)  => "s2"
    case Seq(1, _*)         => "s1"
    case Seq(5, 6, 7, _*)   => "s3"
    case _                  => "d"
  }

  def main(args: Array[String]): Unit = {
    val xs1 = List(
      List(1,2,3),
      List(4,5),
      Vector(7),
      Seq(),
      Seq(1, 2, 3, 4, 5, "abcd"),
      "abc"
    ) map f1

    xs1 foreach println

    val xs2 = List(
      Seq(5, 6, 7),
      Seq(5, 6, 7, 8, 9),
      Seq("a"),
      Seq(1, 6, 7),
      List(5, 6, 7),
      Nil,
      5
    ) map f2

    xs2 foreach println
  }
}