Boo!

A guide to Boo's metaprogramming and extensibility features?

: Don't jump out the second you see them. Wait until they are at their closest point or just as they turn away from you. A guide to Boo's metaprogramming and extensibility features

: Boo is famous for its extensibility. You can learn about its syntactic macros to modify how the language itself works. A guide to Boo's metaprogramming and extensibility features