Get a random paragraph from a file

getrandomparagraph.scala

import scala.io
import scala.util.Random

object RandomQuote {
  private def splitParagraphs(r: io.BufferedSource) =
    r.mkString.split("\n\n")

  private def getRandomElement[T](ar: Array[T]): Option[T] = ar.length match {
    case 0 => None
    case _ => Some(ar(Random.nextInt(ar.length)))
  }

  def main(args: Array[String]) {
    val file = if (args.length > 0) io.Source.fromFile(args(0)) else io.Source.stdin
    val quotes = splitParagraphs(file)
    getRandomElement(quotes) map println
  }
}