Regex examples #scala

gistfile1.scala

val urlMatcher: (String => Option[Map[Symbol, String]]) = { str =>
  val ptn = """^(https?)://([^/]+)(.*)$""".r
  for { ptn(m1, m2, m3) <- ptn findFirstIn str } yield {
    Map(
      'scheme -> m1,
      'host -> m2,
      'uri -> m3
    )
  }
}

Array(
  "http://example.net",
  "https://example.net/",
  "http://example.net/index.html",
  "http://example.net/posts/123"
) foreach { str =>
  urlMatcher(str) map { matches =>
    println("Scheme:%s Host:%s URI:%s".format(
      matches('scheme), matches('host), matches('uri))
    )
  }
}