Creates the Command Line Interface

[wisn]

We need to creates the command line interface for Hanum. We will use Options for the arguments parser.

[wisn]

Using own algorithms instead of Options. It's easier to custom.

[wisn]

This part has been worked well. The rest is just improve the performance (if possible). What should I do is try to use mutable state for the Arguments.

Here is the ADT.

type Options = Map.Map String String

data Arguments = ArgNil
               | Arguments
                 { options          :: Options
                 , arguments        :: [String]
                 , unknownOptions   :: Options
                 , unknownArguments :: [String]
                 }
               deriving (Eq, Show)

[arkrwn]

Ganbate gan :D