Heya guilers!
I just packaged a small package to enable a reader extension #.
that should be a replacement of #, in #` syntactic forms.
The #. form will pick up the sourunding syntactic environment inside
any #` forms specified e.g. consider
Example (from the srfi-72 documentation):
(use-module (ice-9 syntax-closure))
(let-syntax ((main (lambda (form)
(define (make-swap x y)
(quasisyntax
(let ((t #,x))
(set! #,x #,y)
(set! #,y t))))
(quasisyntax
(let ((s 1)
(t 2))
#.(make-swap #`s #`t)
(list s t))))))
(main))
==> (2 1)
In this example #`s will refer to the let bound 's' which is not the case
if we instead would have used #, #`s would refere to an outer 's'
If we instead had used #, the swap would not happend.
You may find it at
http://gitorious.org/syntax-closures/syntax-closures
Have fun!
/Stefan
