[racket] syntax-parse #:at

From: Jon Rafkind (rafkind at cs.utah.edu)
Date: Thu May 17 16:52:07 EDT 2012

Ok I see from the syntax/parse source that it uses lctx as the first argument to datum->syntax, so that mostly answers my question.

On 05/17/2012 02:41 PM, Jon Rafkind wrote:
> What exactly are the semantics of #:at inside a #:literal-sets ([x #:at y]) ?
> From the docs " If the #:at keyword is given, the lexical context of the lctx term is used to determine which identifiers in the patterns are treated as literals;". In what way is 'lctx' used?
> ____________________
>   Racket Users list:
>   http://lists.racket-lang.org/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20120517/b5b9c49c/attachment-0001.html>

Posted on the users mailing list.