Helper object parsing the "Link" header of the Github API v3, in Scala

GithubHelper.scala

/*
   *  parses the link header field (http://tools.ietf.org/html/rfc5988) returned by Github's api 
   *  (c.f. https://developer.github.com/guides/traversing-with-pagination/)
   */
  
trait GithubLinkHeader {

  def parse(linkHeader: IndexedSeq[String]): Map[String, String] = {
    assert(linkHeader.size == 1)
    linkHeader.head.split(',').map { linkEntry =>
      val entryPart = linkEntry.split(';')
      assert(entryPart.size == 2)
      val rel = entryPart(1).replace(" rel=\"", "").replace("\"", "")
      val url = entryPart(0).replace("<", "").replace(">", "")
      (rel, url)
    }.toMap
  }
  
}