As part of implementing our strategy for simplified sorting rules I needed to write a parser for the rules. Of course I started out looking at parser generators but wasn’t very excited by what I could find. Eventually I came across Spart (an implementation of Spirit in C#). I liked what I saw but it isn’t maintained anymore and it was written before .Net 2.0 so I cleaned it up a bit, took advantage of .Net 2.0 features, and added it to our Palaso library.