Re: [racket-users] Getting the "require" syntax arrows to work right

2015-10-24 Thread Alexis King
Aha, yes, that seems to work. I should have thought of that, but I actually didn’t know you can just copy all properties over with datum->syntax, haha. I guess I should have read the docs for that more carefully. This does seem a little bit like cheating because now the macro-generated

Re: [racket-users] Getting the "require" syntax arrows to work right

2015-10-24 Thread Robby Findler
I'm not sure syntax-original? is really that meaningful anymore. Another way to forge it is to use read-syntax with a string port that has whatever you want (during a macro expansion call). And check syntax even accepts an alternative property for those times when these two approaches aren't

Re: [racket-users] Getting the "require" syntax arrows to work right

2015-10-24 Thread Robby Findler
Maybe you need to copy over the properties too? This seems to work: #lang racket/base (require (for-syntax racket/base)) (define-syntax (import stx) (syntax-case stx () [(_ (a b)) #`(require #,(datum->syntax stx (string->symbol (format "~a/~a" (syntax-e

[racket-users] Getting the "require" syntax arrows to work right

2015-10-24 Thread Alexis King
I’ve been toying with the idea of making an R7RS implementation in Racket, and one of the things I’ve implemented is the R7RS `import` form. It’s very easy to implement in Racket, and it works fine as far as I can tell, but I can’t figure out how to get the special binding arrows to cooperate