Groups
object Groups
An extractor object that yields the groups in the match.
An extractor object that yields the groups in the match. Using this extractor
rather than the original Regex
ensures that the match is not recomputed.
import scala.util.matching.Regex.Groups
val date = """(\d\d\d\d)-(\d\d)-(\d\d)""".r
val text = "The doc spree happened on 2011-07-15."
val day = date replaceAllIn(text, _ match { case Groups(_, month, day) => s"$month/$day" })