Created
June 30, 2011 05:21
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Ruby Enumerable.grep を Scala で
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| implicit def toGrepCallable(list:List[String]) = new { | |
| def grep[A](regex:String)(func:String => A = identity _):List[A] = | |
| list.collect{ | |
| case s if regex.r.findFirstIn(s).isDefined => | |
| func(s) | |
| } | |
| } |
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| scala> List("aaa","123").grep("\\d"){_.toInt * 2} | |
| res0: List[Int] = List(246) |
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