Earlier quoted context omitted.
I had fun writing a Racket version: #lang racket/base (require net/base64 threading) (define FIRST-INVISIBLE-CHAR 917760) (define (invis-encode str) (list->string (for/list ([c (in-list (string->list str))] #:do [(define cnum (char->integer c))] #:when ( char (+ cnum FIRST-INVISIBLE-CHAR))))) (define (invis-decode str) (list->string (for/list ([c (in-list (string->list str))] #:do [(define plaintxt-c (- (char->intege…
Threading is done with the wave character ~ in Racket? I can't decide if I hate it or not (am used to Clojure's ->). I think my pinky finger doesn't like ~.
The identifier `->` is already used for type annotations.