Scala regexps: how to return matches as array or list

Question

Is there a simple way to return regex matches as an array?
Here is how I am trying in 2.7.7:

val s = \"\"\"6 1 2\"\"\"
val re = \"\"\"(\\d+)         


        

Answer 1

Try this:

  val s = """6 1 2"""
  val re = """\d+""".r
  println(re.findAllIn(s).toList) // List(6, 1, 2)
  println(re.findAllIn(s).toList.length) // 3

And, if you really need a list of the match groups within a singe Regex:

  val s = """6 1 2"""
  val Re = """(\d+)\s(\d+)\s(\d+)""".r
  s match {  // this is just sugar for calling Re.unapplySeq(s)
      case Re(mg@_*) => println(mg) // List(6, 1, 2)
  }