Making your own Scala 2.10 string interpolator

u.scala

implicit class UpCaser(val sc: StringContext) extends AnyVal {
  def u(args: Any*): String = {
    val strings = sc.parts.iterator
    val expressions = args.iterator
    var buf = new StringBuffer(strings.next)
    while (strings.hasNext) {
      buf append expressions.next
      buf append strings.next
    }

    buf.toString.toUpperCase
  }
}

println(u"this will be all upper case") //=> "THIS WILL BE ALL UPPER CASE"

// See http://docs.scala-lang.org/overviews/core/string-interpolation.html