tryo.scala

  def tryo[T]( f: => T )
             ( implicit onError: Throwable => Option[T] =
               { t:Throwable => None }): Option[T] =
 {
    try {
      Some( f )
    } catch {
      case c => onError( c )
    }
  }

  def trye[T]( f: => T )
             ( implicit onError: Throwable => Either[Throwable,T] =
               { t:Throwable => Left( t ) }): Either[Throwable,T] =
  {
    try{
      Right( f )
    } catch {
      case c => onError( c )
    }
  }