try_parse_with_delim assumes positive amount

[rkost]

I just noticed that try_parse_with_delim assumes that a positive amount is given and will return incorrect results for negative inputs.

abrechnung/abrechnung/utils.py

Lines 63 to 73 in 648aeed

	def try_parse_with_delim(s, d):
	if d in s:
	ps = s.split(d)
	if len(ps) == 2:
	if len(ps[1]) == 2:
	return int(ps[0]) * 100 + int(ps[1]) * 1
	elif len(ps[1]) == 1:
	return int(ps[0]) * 100 + int(ps[1]) * 10
	elif len(ps[1]) == 0:
	return int(ps[0]) * 100
	raise ValueError

The cent amount is added to the parsed euro amount, while it must be subtracted for negative inputs.

Example:

>>> try_parse_with_delim("-2.5", '.')
-150