scopt

Type Members

1. class OptionDef[A, C] extends AnyRef

   

2. abstract case class OptionParser[C](programName: String) extends Product with Serializable

   

   scopt.immutable.OptionParser is instantiated within your object, set up by an (ordered) sequence of invocations of the various builder methods such as opt method or arg method.

   scopt.immutable.OptionParser is instantiated within your object, set up by an (ordered) sequence of invocations of the various builder methods such as opt method or arg method.

   val parser = new scopt.OptionParser[Config]("scopt") {
     head("scopt", "3.x")
     opt[Int]('f', "foo") action { (x, c) =>
       c.copy(foo = x) } text("foo is an integer property")
     opt[File]('o', "out") required() valueName("") action { (x, c) =>
       c.copy(out = x) } text("out is a required file property")
     opt[(String, Int)]("max") action { case ((k, v), c) =>
       c.copy(libName = k, maxCount = v) } validate { x =>
       if (x._2 > 0) success else failure("Value  must be >0")
     } keyValueName("", "") text("maximum count for ")
     opt[Unit]("verbose") action { (_, c) =>
       c.copy(verbose = true) } text("verbose is a flag")
     note("some notes.\n")
     help("help") text("prints this usage text")
     arg[File]("...") unbounded() optional() action { (x, c) =>
       c.copy(files = c.files :+ x) } text("optional unbounded args")
     cmd("update") action { (_, c) =>
       c.copy(mode = "update") } text("update is a command.") children(
       opt[Unit]("not-keepalive") abbr("nk") action { (_, c) =>
         c.copy(keepalive = false) } text("disable keepalive"),
       opt[Boolean]("xyz") action { (x, c) =>
         c.copy(xyz = x) } text("xyz is a boolean property")
     )
   }
   // parser.parse returns Option[C]
   parser.parse(args, Config()) map { config =>
     // do stuff
   } getOrElse {
     // arguments are bad, usage message will have been displayed
   }

3. trait Read[A] extends AnyRef

   

4. trait Zero[A] extends AnyRef