[comp.lang.scheme] Macro standardization status?

bothner@sevenlayer.cs.wisc.edu (Per Bothner) (04/11/91)

I've seen various papers implying that there is consensus
on a macro extension for R4R. But I haven't seen a concrete
specification yet. Is such a beast available? Something
that would be suitable for implementors?

Also, are there any available Scheme implementation that
implements the planned macro model?
-- 
	--Per Bothner
bothner@cs.wisc.edu Computer Sciences Dept, U. of Wisconsin-Madison