As promised, here is my C# implementation of the ASCII85 algorithm. This code is a loose port of the C sample referenced from the Wikipedia page. It's too much code to paste into a single entry, so I packaged it as a VS.NET 2003 solution -- using Clean Sources Plus, of course!
Hi! I’m using a small glitch in your code, to illustrate the benefits of stateless (functional) programming. To play fair, I’d better let you know about it :-). The link in question is http://blog.wezeku.com/2010/07/01/f-ascii85-module/