11 lines
302 B
Scheme
11 lines
302 B
Scheme
(define mes '(0 1))
|
|
|
|
(define (cond-expand-expander clauses)
|
|
(let loop ((clauses clauses))
|
|
(if (defined? (caar clauses))
|
|
(eval (cons 'begin (cdar clauses)) (current-module))
|
|
(loop (cdr clauses)))))
|
|
|
|
(define-macro (cond-expand . clauses)
|
|
`(cond-expand-expander (quote ,clauses)))
|