Lisp2d

Lisp2d is a syntax replacement/extension for lisp created as a joke by shinh, who also compiled an interpreter for it to befunge. It allows bracketed expressions to travel vertically as well as the usual horizontal.

Example

(defun fizzbuzz ^        (fizzbuzz 1) @
  ^ zzuB ( 0 (5 n                       dom)
  i                      ^
  f             v        ^                 q
  (                                        eq ^
            ^ fi)        ^                 v  m
            e                                 o
            q            l                 f  d
                         i                 i
            n       (mod n 15) 0) Fizzbuzz v  n

            1       q                         3
            0       e                         v
            1   (if v
            v                                 0
                t                             v
            n   n
            i   i                             F
            l   r                             i
                p        ^                    z
            (if v        ^                    z
                         1
                                              n

                                              v
                         n                    v
                                              v
                         +                    v
                         v           zzubzzif )

External resources

• Blog post with example
• Implementation in C