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| 1 | (define-syntax definem | |
| 2 | (lambda (x) | |
| 3 | (syntax-case x () | |
| 4 | ((_ (macro . args) body ...) | |
| 5 | #'(definem macro (lambda* args body ...))) | |
| 6 | ((_ macro transformer) | |
| 7 | #'(define-syntax macro | |
| 8 | (lambda (y) | |
| 9 | (syntax-case y () | |
| 10 | ((_ . args) | |
| 11 | (let ((v (syntax->datum #'args))) | |
| 12 | (datum->syntax y (apply transformer v))))))))))) | |
| 13 | ||
| 14 | ||
| 15 | (definem (test lst #:optional (fun car)) | |
| 16 | `(,fun lst)) | |
| 17 | ||
| 18 | - | (define lst (list 1 2 3 4)) |
| 18 | + | (define lst (list 1 2 3 4)) |
| 19 | ||
| 20 | (test lst) |
