Todd, Have you read the Macros section of the Guide yet?
http://docs.racket-lang.org/guide/macros.html The questions you're asking suggest that you want syntax-parse (or syntax-case) instead of syntax-rules; those are all still within define-syntax. The guide will take you through examples of both syntax-rules and syntax-case. Carl Eastlund On Wed, Jan 26, 2011 at 4:45 PM, Todd O'Bryan <[email protected]> wrote: > OK, I understand that the template language in (define-syntax ...) > doesn't give you access to the full panoply of Racket-ness. But I > really want to manipulate the template variables before passing them > on to the next step in the expansion. I've tried (define-for-syntax > ..) and a couple of other things, but I keep getting errors about > identifiers being unbound and other things which indicate in a very > concrete way that I don't have a good grasp on how this all works. > > I've tried reading the explanation in the Reference several times, but > I think you have to understand what it's saying before it makes sense. > > Can anyone point me to a lecture, a paper, a chapter, or a chart that > explains exactly how Racket (and/or Scheme) gets evaluated? What's > defined when, how the namespaces are set up, examples of clever macros > that manipulate templates before they're output, etc? > > If such a thing doesn't exist, could someone write something up? In > your copious free time? If I say pretty please? (This paragraph is > much more funny if you read it with up-talk on each sentence.) :-) > > Todd _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
