kernelthread.com

Brain

The Towers of Hanoi as a Brain language program.

Brain is a high-level, purely object-oriented, prototype based scripting language, mostly similar to the Self language. Some features of Brain are:

-- The Towers Of Hanoi -- Brain Implementation -- Copyright (C) 2003 Amit Singh. All Rights Reserved. -- http://hanoi.kernelthread.com -- -- Tested under Brain 0.5.2 (http://brain.sourceforge.net) -- movedisk = { |f t| -- (from, to) -- f print. " --> " print. t println. }. dohanoi = { |n f u t| -- (n, from, using, to) -- (n == 1) if-true: { movedisk(f, t). } if-false: { dohanoi(n - 1, f, t, u). movedisk(f, t). dohanoi(n - 1, u, f, t). } }. hanoi = { |n| -- (n) -- (n < 1) if-true: { "hanoi: number of disks must be a positive non-zero integer" println. brain exit. } if-false: { -- nothing }. (n > 10) if-true: { "hanoi: number of disks must be less than 10" println. brain exit. } if-false: { -- nothing }. dohanoi(n, 1, 2, 3). }. hanoi(11).

Download

hanoi.brn