require 'noofakku'

input = -> { 0 }
produced = ''
output = ->value { produced << value }

# will print "Hello World!\n"
program = '++++++++++[>+++++++>++++++++++>+++>'
program << '+<<<<-]>++.>+.+++++++..+++.>++.<<++'
program << '+++++++++++++.>.+++.------.--------.>+.>.'

Noofakku::VM.start(program, input, output)

p produced #=> "Hello World!\n"

require 'noofakku'

to_be_sorted = [5, 3, 2, 6, 0].each
input = -> { to_be_sorted.next }
produced = []
output = ->value { produced << value }

# will sort the zero-ended array in input
program = '>>,[>>,]<< [[-<+<]>[>[>>]<[.[-]<[[>>+<<-]<]>>]>]<<]'

Noofakku::VM.start(program, input, output)

p produced #=> [2, 3, 5, 6]