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Justin Ethier 2015-03-23 22:54:24 -04:00
parent eae579bf32
commit ef53201de5
1 changed files with 6 additions and 0 deletions
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6
trans.scm
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@ -64,6 +64,12 @@
(if (null? lst)
end
(func (car lst) (foldr func end (cdr lst)))))
(define (list? obj)
(cond
((null? obj) #t)
((pair? obj)
(list? (cdr obj)))
(else #f)))
(define (list . objs) objs)
(define (map func lst)
(foldr (lambda (x y) (cons (func x) y)) '() lst))