汎用Versionクラス

Version.scala

case class Version(v: Int *) extends Ordered[Version] {
  def compare(other: Version) = {
    c(v,other.v)
  }
  def c(v1: Seq[Int], v2: Seq[Int]): Int = {
    val diff = v1.headOption.getOrElse(0) compare v2.headOption.getOrElse(0)
    if(diff == 0) c(v1.tail,v2.tail) else diff
  }
}

object Version {
  def apply(s: String): Version = {
    val a = s.split('.').map(_.toInt).toSeq 
    Version(a: _*)
  } 
}