40 minutes ago, Joan Arnaldich wrote:
> level 2 will always be ugly without the Python maketrans function. I
> used a hash: https://gist.github.com/3151724e7ac74264c52e.
Here's another:
(define (translate str)
(define A (char->integer #\a))
(define (rotate x) (+ A (modulo (- x A -2) 26)))
(regexp-replace* #rx#"[a-z]" str (λ (m) (bytes (rotate (bytes-ref m 0))))))
In any case, it's easy to write some tr-style utility, the question is
whether it has any practical use. (I've seen a number, they were all
from such toys.)
--
((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay:
http://barzilay.org/ Maze is Life!
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