My point was that it's not trivial and it's hard to get it right. The way I read your comment was that it's not hard and can easily be done in 200 lines. It's p

My point was that it's not trivial and it's hard to get it right. The way I read your comment was that it's not hard and can easily be done in 200 lines. It's possible I misread it. I think the original point I was making still stands.