lang/reader.rkt
#lang s-exp syntax/module-reader
racket/base
#:read my-read
#:read-syntax my-read-syntax
#:whole-body-readers? #t

(define (my-read in)
  (syntax->datum (my-read-syntax #f in)))
 
(define (my-read-syntax src in)
  #'((printf "Moby is obsolete, and has been replaced with the Whalesong project.\n\nSee:\n\n    http://hashcollision.org/whalesong\n\nfor installation and examples.\n")))