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[FIX] nl: dutch vat check broken since 01/01/2020 #183

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[FIX] nl: dutch vat check broken since 01/01/2020 #183

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37 changes: 36 additions & 1 deletion stdnum/nl/bsn.py
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,36 @@
from stdnum.exceptions import *
from stdnum.util import clean, isdigits

char_to_int = {
'A' : 10,
'B' : 11,
'C' : 12,
'D' : 13,
'E' : 14,
'F' : 15,
'G' : 16,
'H' : 17,
'I' : 18,
'J' : 19,
'K' : 20,
'L' : 21,
'M' : 22,
'N' : 23,
'O' : 24,
'P' : 25,
'Q' : 26,
'R' : 27,
'S' : 28,
'T' : 29,
'U' : 30,
'V' : 31,
'W' : 32,
'X' : 33,
'Y' : 34,
'Z' : 35,
'+' : 36,
'*' : 37,
}

def compact(number):
"""Convert the number to the minimal representation. This strips the
Expand All @@ -72,7 +102,12 @@ def validate(number):
if len(number) != 9:
raise InvalidLength()
if checksum(number) != 0:
raise InvalidChecksum()
check_val = '2321'
for x in number:
if x.isdigit(): check_val += x
else: check_val += str(char_to_int[x])
if int(check_val_sole) % 97 != 1:
raise InvalidChecksum()
return number


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