How to check whether a String fully matches a Regex in Scala?

Question

Assume I have a Regex pattern I want to match many Strings to.

val Digit = \"\"\"\\d\"\"\".r

I just want to check whether a given String fu

Answer 1

Using Standard Scala library and a pre-compiled regex pattern and pattern matching (which is scala state of the art):

val digit = """(\d)""".r

"2" match {
  case digit( a) => println(a + " is Digit")
  case _ => println("it is something else")
}

more to read: http://www.scala-lang.org/api/2.12.1/scala/util/matching/index.html