transform date

fromScalaConsole.scala

import java.time.LocalDate
import java.time.format.DateTimeFormatter
import java.util.Locale
import scala.util.matching.Regex.Match

val extractor = """<Current Date \+ (\d+) days>""".r

def transform(src: String): String = {
  def calc(matched: Match) = {
    LocalDate.now().plusDays(matched.group(1).toInt).format(DateTimeFormatter.ofPattern("MMMM dd, YYYY", Locale.US))
  }
  extractor.replaceAllIn(src, calc _)
}

val data = " Your dadadadada <Current Date + 6 days>.\r\nYou dadadadadatrtrton <Current Date + 22 days>."
val target = " Your dadadadada April 29, 2014.\r\nYou dadadadadatrtrton May 15, 2014."

assert(transform(data) == target)