Funky enumerator usage

funky.scala

package controllers

import play.api._
import play.api.mvc._
import play.api.libs.ws._
import play.api.libs.iteratee._
import play.api.libs.concurrent._

object Application extends Controller {
	
	val EXPECTED_LENGTH = 15;
	
	def index = Action {
		val p1 = WS.url("http://linkedin.com").get().map{ _ => "linkedin" }
		val p2 = WS.url("http://zenexity.com").get().map{ _ => "zenexity" }
		val p3 = WS.url("http://news.ycombinator.com").get().map{ _ => "ycombinator" }
                val enumerators = List(p1,p2,p3).map(p => Enumerator.flatten(p.map( r => Enumerator(r:_*))))
                val r = 
                  Enumerator.interleave(enumerators) &>
		  Enumeratee.take(EXPECTED_LENGTH) |>>
		  Iteratee.fold(List[Char]()){ (es, e: Char) => println(e); e :: es }

		val p = r.flatMap(_.run).map( cs => Ok(cs.reverse.mkString))

		AsyncResult(p)
	}
}

wihtoutOperator.scala

val r = Enumerator.interleave(enumerators) through
	Enumeratee.take(EXPECTED_LENGTH) apply
	Iteratee.fold(List[Char]()){ (es, e: Char) => println(e); e :: es }

withParenthesis.scala

val r = Enumerator.interleave(enumerators)
          .through(Enumeratee.take(EXPECTED_LENGTH))
          .apply(Iteratee.fold(List[Char]()){ (es, e: Char) => println(e); e :: es })