At Wed, 20 Mar 2013 13:27:02 -0600, Matias Eyzaguirre wrote: > As per the pattern grammer in the reference guide, I can use syntax > case to match against vectors, lists, and prefab structures [...] But > I cannot pattern match inside of the box itself. > [...] > Why is this? It's my understanding that syntax-case is an older features, and > so perhaps it just wasn't updated when newer constructs arrived.
Actually, the box notation predates `syntax-case' (certainly in Racket/MzScheme, but I think more generally). > Was this an intentional decision, or did it slip through? The decision was intentional, but arbitrary. I don't like the box notation, and I think we probably would have been better off without it. But since it's there and supported in most syntax contexts, the `syntax-case' implementation should probably support it for consistency. > If it did, could I ask that it be added to the TODO list? Yes, I'll look into it. ____________________ Racket Users list: http://lists.racket-lang.org/users
