read-write-test.egi

(define $main
  (lambda [$: $argv]
    (do {[$: (write-string : "input : ")]
         [$: (flush :)]
         [[$: $val] (read :)]
         [$: (write-string : "output : ")]
         [$: (write : val)]
         [$: (write-char : '\n')]}
        :)))