Filter CSV by Field Heading using Scala

CsvFilter.scala

case class CsvWithHeadersExtractor( text: List[ String ] ) {

    val head = removeQuotations( text.map( x => x.split( "," ).toList ).head )
    val list = for {
        tail <- text.map( x => x.split( "," ).toList ).tail
    } yield {
            head zip removeQuotations( tail )
    }

    def filterByField( columnName: String ): List[ String ] = {
        list.flatMap( _.filter( x => x._1 == columnName ).map( _._2 ) )
    }

    private def removeQuotations( fields: List[ String ] ): List[ String ] = {
        fields.map( _.replaceAll( "^\"|\"$", "" ) )
    }
}

val sourceList = CsvWithHeadersExtractor( List( "id,name", "1,David", "2,Patrick" ) )
//sourceList: CsvWithHeadersExtractor = CsvWithHeadersExtractor(List(id,name, 1,David, 2,Patrick))

sourceList.filterByField( "name" )
//res0: List[String] = List(David, Patrick)