Hannah

From Esolang

Hannah is a two-dimensional esoteric programming language invented by Marz. It is believed to be Turing complete.

A description of Hannah can be found here, and some examples can be found here.

[edit] Examples

[edit] Hello, world!

This program outputs the ASCII for "Hello, world!" in binary.

hello world
 v  v    vv  v v vv vv   vv vv   vv vvvv  v vv    v      vvv vvv  v    v
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

[edit] Cat

This program outputs input bytes until it reaches a null.

cat
 v
xv< <  < <  < <  <
 /////////////////
v  v v  v v  v v  v
i  i i  i i  i i  i
/oo/ /oo/ /oo/ /oo/