SPACE = ' '



'''

>>> splitstring(' xxx yyy')

[('xxx', 0), ('yyy', 4)]

>>> splitstring('x y ')

[('x', 0), ('y', 2)]

'''





def splitstring(s):

	'''

	>>> splitstring('  xxx yyy')

	['xxx', 'yyy']

	>>> splitstring('x y ')

	['x', 'y']

	'''

	

	print '*** splitstring: `' + s + '`'



	if s == '':

		return []



	if s[0] == SPACE:

		return [splitstring(s[1:])

		

	else:

		n = -1

		for e in s:

			n = n+1

			if e == SPACE:

				return [s[:n]] + [splitstring(s[n+1:])]





	



if __name__ == '__main__':

	import doctest

	doctest.testmod()