[dfeltey]

I'm not sure whether you would consider this paper systems-oriented, but it's fun and sort of practical. "A Play on Regular Expressions" is literally a 3 act play about efficiently implementing regular expressions with code in Haskell. I've been working through it and trying to adapt some of the code for a workshop I'm giving this summer, and it's been very readable and interesting.

http://sebfisch.github.io/haskell-regexp/regexp-play.pdf

[krmboya]

Thanks! I'll try it out once I can understand Haskell syntax..