I meant to rewrite with syntax-parse before emailing out to show error checking. Out of time.
On Jan 2, 2013, at 11:37 AM, Robby Findler wrote: > > > > On Wed, Jan 2, 2013 at 10:33 AM, Matthias Felleisen <matth...@ccs.neu.edu> > wrote: > > Sean, it took me a while to figure out condlet but here is how a Racketeer > would write this (questionable) macro: > > (define-syntax (condlet stx) > (syntax-case stx () > [(condlet ((c (x e) ...) ...) body ...) > #'(cond > [c (let* ((x '()) ... ...) > (let ((x e) ...) > body ...))] > ...)])) > > As Stephan points out, a let* suffices here because it simply doesn't matter > because it simply doesn't matter which x binding body ... sees. > > > This could be define-syntax-rule, no (since there's no error checking)? > > Robby >
____________________ Racket Users list: http://lists.racket-lang.org/users
