On 13/05/19 19:35, Peter Bex wrote:
On Mon, May 13, 2019 at 07:11:40PM +0100, Martin Ward wrote:
Chicken scheme does not appear to have defmacro or define-macro
but does have define-syntax.
Is there a way to define defmacro using define-syntax?
This is of course highly discouraged (because defmacro is
inherently unhygienic), but you can do:
(import (chicken syntax))
(define-syntax defmacro
(syntax-rules ()
((_ ?name ?args ?body ...)
(define-syntax ?name
(er-macro-transformer
(lambda (e r c)
(apply (lambda ?args ?body ...) (cdr e))))))))
That works, thanks! :-)
--
Martin
Dr Martin Ward | Email: [email protected] | http://www.gkc.org.uk
G.K.Chesterton site: http://www.gkc.org.uk/gkc | Erdos number: 4
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