Possibility of using the same parameter more than once has been added.

[bronweg]

Possibility of using the same parameter more than once has been added.

[nikita-skobov]

Looks good, thank you. Now that there are a few more options, ie: asterisk, plus sign, minus sign, I think It will be better if they are all placed at the end of the argument list. So the asterisk comes in the beginning, and the plus sign, minus sign come at the end of the variable name. I will be making a pull request later to change that.

[nikita-skobov]

Actually now that I think about it, maybe that's not a good idea because users could do something like:

--arguments *file+

which makes file a required argument that can be used multiple times, and the logic works fine for that,
but if we switched to this:

--arguments file+*

the program would need to also handle

-- arguments file*+

So I think it's better to keep it working as it is.