A while ago, I was looking for a library to parse
NSStringobjects as mathematical expressions. I wanted to be able to take a string like@"2+3*4"and get back14. I found two easy ways to do this:GCMathParserandNSPredicate(of course!).
GCMathParseris a library by Graham Cox for…
There’s so much awesome in this post that I think I just peed myself.