CSV to XML converter

converter.scala

import scala.io.Source

case class Passenger(name: String, ridingIn: String) {
    def asNode = <Passenger name={ name }/>
}

case class Car(model: String, year: String, registration: String, passengers: Seq[Passenger]) {
    def asNode =
<Car model={ model } year={ year } reg={ registration }>
    <Passengers>
        { passengers map (_.asNode) }
    </Passengers>
</Car>
    override def toString = asNode toString
}

object SimpleXml {
    def csv(file: String) = Source.fromFile(file).getLines.map(_.split(",")).toSeq
    def main(args: Array[String]): Unit = {
        val ps = csv("passengers.csv").map(p ⇒ Passenger(p(1), p(0)))
        val cs = csv("cars.csv").map(c ⇒ Car(c(1), c(2), c(0), ps.filter(_.ridingIn == c(0))))
        cs foreach println
    }
}