def parse_ledger(self, filename, str = None):
if str is None:
str = codecs.open(filename, "r", "utf-8").read()
f = lambda (number, line): line == ""
lines = itertools.izip(itertools.count(1), str.split("\n"))
try:
transactions = [self.parse_transaction(group) for group in itersplit(f, lines)]
except PledgerException, e:
e.filename = filename
raise e
def testItersplit(self):
items = range(20)
result = [range(5), range(6, 10),
range(11, 15), range(16, 20)]
p = lambda x: x % 5 == 0
self.assertEqual(result, list(util.itersplit(p, items)))