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Convenient command line parsing for Scala
Scala
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project A bunch of work trying to get some real magic going,
src/main/scala out-paulp-ing paulp by compiling under 2.8 and without warnings; adde…
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README Modified license and readme to steal all the credit.
mkCommand A bunch of work trying to get some real magic going,
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README

optional is a command line option parser and library.

YOU WRITE:

object MyAwesomeCommandLineTool extends optional.Application {
  // for instance...
  def main(count: Option[Int], file: Option[java.io.File], arg1: String) {
    [...]
  }
}

THEN YOU DO:

  scala MyAwesomeCommandLineTool --count 5 quux

AND YOUR MAIN METHOD WILL BE INVOKED SUCH THAT:

  count = Some(5)
  file = None
  arg1 = quux
  
See the example programs for many more features.

HOW IT WORKS:

  Reflection, man.

CREDITS:

  Idea and prototype implementation: DRMacIver.
   Fleshing out and awesomification: paulp.

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