brainfuck `hello world` echo'er

bf_echo.py

'''
brainfuck `hello world` echo'er
test in here http://copy.sh/brainfuck/
wbr, yy
'''
from brainfuck import evaluate


def pack(coordinates):
	lines = list()
	for value in coordinates:
		#power = log(value) / log(2)
		divisor = 10
		factor = int(value / divisor)
		reminder = int(value % divisor)
		if factor >= 2:
			line = '>%s[>%s<-]>%s.' % \
			('+' * factor, '+' * divisor, '+' * reminder)
		else:
			line = '>' + '+' * value
		lines.append(line)
	return lines


def pack2(coordinates):
	lines = ['>']
	last = 0
	for value in coordinates:
		#print value
		if value > last:
			offset = value - last
			op = '+'
		else:
			offset = last - value
			op = '-'
		#print '%s%d %d %d' % (op, offset, value, last)
		last = value
		divisor = 10
		factor = int(offset / divisor)
		reminder = int(offset % divisor)
		if factor >= 2:
			line = '<%s[>%s<-]>%s.' % \
			('+' * factor, op * divisor, op * reminder)
		else:
			line = op * offset + '.'
		lines.append(line)
	return lines


def say(message):
	return pack2(ord(char) for char in message)


if __name__ == '__main__':
	code = say('HB, Chris!')
	#print '\n'.join(code)
	print ''.join(code)
	print evaluate(code)