racket/collects/htdp/Test/dir.ss
2005-05-27 18:56:37 +00:00

16 lines
597 B
Scheme

;; TeachPack: dir.ss
;; Language: Intermediate with Lambda
(define current (create-dir "."))
(define teachps (create-dir (string-append "/Users/matthias/plt/" "/teachpack/htdp")))
(define current-files (map file-name (dir-files current)))
(define teachps-files (map file-name (dir-files teachps)))
(append
(map (lambda (x) (format "in Teachpacks, not in Test: ~s" x))
(filter (lambda (x) (boolean? (member x current-files))) teachps-files))
(map (lambda (x) (format "in Test, not in Teachpacks: ~s" x))
(filter (lambda (x) (boolean? (member x teachps-files))) current-files)))