This version revises the API and the parsing rules substantially (to the point where it's actually not really compatible with the previous version, but whatever). The argument parsing behavior is now very close to what PowerShell uses (which I happen to like a lot).

Another feature I added are "shell commands". The idea here is that you can have a shell utility that performs many different functions, each of which has its own set of arguments. Think for example of the windows "net" command, or the "svn" Subversion client. This library makes it really easy to define commands and their arguments, and then find, instantiate, and run the command based on the program's arguments. It's a bit of a niche functionality, but it's something I use a lot myself when writing various utilities for use in my research (in fact, it was one of the reasons I wrote the original library, even though I didn't include this bit in the released version back then).

As an added bonus, it also contains a LineWrappingTextWriter class, which wraps any existing TextWriter and neatly wraps the output. I use it for printing stuff to the console (like the usage help for the arguments), very useful.

Check it out if you're interested! </shameless-self-promotion>

Looks nice Sven

It's still available on CodePlex of course, but you can now also add it your project using NuGet. There's also a sample.

As part of a back-log of stuff that I didn't quite manage to get out the door while I was writing up my Ph.D. thesis, I am now releasing an updated version of Ookii.CommandLine. It's only a small update, which adds command line argument aliases, some updates for usage help generation, and code snippets to help with creating argument classes.

In addition, I used NuGet to create a symbols package and published it on SymbolSource, which you should apparently be able to use as a symbol server in Visual Studio without manually downloading the symbols.

Check it out if you like. Or get the NuGet package (does not include the code snippets).