I'm trying to use the syntax/parse library, and am running into a weird problem when using ~or. It works without ellipses, but with ellipses it complains about a duplicated attribute. I would assume that the attributes with the same name in an ~or pattern were the same attribute that could just match in different ways. A simplified version is below, the first 4 examples work, and the fifth does not. Is there a restriction that I am missing for why this does not work?
Thanks, Eric #lang racket (require syntax/parse) (syntax-parse #'(1 2 3) [((~or x:number) ...) (syntax->datum #'(x ...))]) (syntax-parse #'(a b c) [((~or x:id) ...) (syntax->datum #'(x ...))]) (syntax-parse #'(1) [((~or x:id x:number)) (syntax->datum #'(x))]) (syntax-parse #'(a) [((~or x:id x:number)) (syntax->datum #'(x))]) #; (syntax-parse #'(a 1 b) [((~or x:id x:number) ...) (syntax->datum #'(x ...))]) _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
