rss.scala

import java.net.{URLConnection,URL}
import scala.xml._
import scala.collection.mutable.Buffer

case class Feed(val url: String) {
    var buff: Elem = {
        val u = new URL(this.url)
        val conn = u.openConnection()

        conn.connect
        XML.load(conn.getInputStream)
    }

    private def nice(str: Elem): String = {
        var res: Buffer[String] = Buffer()
        for (item <- str\"channel"\"item") {
            val Array(cat, title) = (item\"title").last.text.split("/", 2).map(_ trim)
            val link  = (item\"link").last.text

            var rec: String = "Category: %s\nTitle: %s\nLink: %s\n\n".format(cat, title, link)

            res+= rec
        }

        res.mkString
    }

    override def toString(): String = {
        this.nice(buff)
    }
}

val xml = new Feed("http://habrahabr.ru/rss/best/")

println(xml)