Commandline Input Parser Thingy

Well, I browsed my old files on my HDD, and I found a really old utility I made.
All it does is "parse" the arguments you give a program, and allow you to access them easier.

Here is the link: http://pastebin.com/zb5JMzbb

Using my utility, you don't have to make complicated "help pages", to explain what argument is at what position.
For example

rednetSend 1 2 Hello

could become

rednetSend -from 1 -to 2 -message Hello

or

rednetSend -to 2 -message Hello -from 1

Usage

local cliAPI = dofile("cli")
local cli = cliAPI.new({...})
cli:parse()
print(cli:getString("from"))
print(cli:getString("to"))
print(cli:getString("message"))