def calc_check_digit(number):
"""Calculate the check digit. The number passed should not have the
check digit included."""
number = to_unicode(number)
number = (' ' + number)[-12:]
check = sum(_alphabet.index(n) * (13 - i) for i, n in enumerate(number))
return _alphabet[(11 - check) % 11]
def calc_check_digit(number):
"""Calculate the check digit. The number passed should not have the
check digit included."""
number = to_unicode(number)
number = (' ' + number)[-12:]
check = sum(_alphabet.index(n) * (13 - i) for i, n in enumerate(number))
return _alphabet[(11 - check) % 11]
def validate(number):
"""Check if the number is a valid Cadastral Reference. This checks the
length, formatting and check digits."""
number = compact(number)
n = to_unicode(number)
if not all(c in alphabet for c in n):
raise InvalidFormat()
if len(n) != 20:
raise InvalidLength()
if calc_check_digits(n) != n[18:]:
raise InvalidChecksum()
return number
def compact(number):
"""Convert the number to the minimal representation. This strips the
number of any valid separators and removes surrounding whitespace."""
number = clean(number, ' ').upper().strip()
for prefix in ('УНП', u'УНП', 'UNP', u'UNP'):
if type(number) == type(prefix) and number.startswith(prefix):
number = number[len(prefix):]
# Replace Cyrillic letters with Latin letters
cleaned = ''.join(_cyrillic_to_latin.get(x, x) for x in to_unicode(number))
if type(cleaned) != type(number): # pragma: no cover (Python2 only)
cleaned = cleaned.encode('utf-8')
return cleaned
def validate(number, validate_check_digits=False):
"""Check if the number is a valid RFC."""
number = compact(number)
n = to_unicode(number)
if len(n) in (10, 13):
# number assigned to person
if not re.match(u'^[A-Z&Ñ]{4}[0-9]{6}[0-9A-Z]{0,3}$', n):
raise InvalidFormat()
if n[:4] in _name_blacklist:
raise InvalidComponent()
_get_date(n[4:10])
elif len(n) == 12:
# number assigned to company
if not re.match(u'^[A-Z&Ñ]{3}[0-9]{6}[0-9A-Z]{3}$', n):
raise InvalidFormat()
_get_date(n[3:9])
else:
raise InvalidLength()
if validate_check_digits and len(n) >= 12:
if not re.match(u'^[1-9A-V][1-9A-Z][0-9A]$', n[-3:]):
raise InvalidComponent()
if n[-1] != calc_check_digit(n[:-1]):
raise InvalidChecksum()
return number
def validate(number, validate_check_digits=False):
"""Check if the number is a valid RFC."""
number = compact(number)
n = to_unicode(number)
if len(n) in (10, 13):
# number assigned to person
if not re.match(u'^[A-Z&Ñ]{4}[0-9]{6}[0-9A-Z]{0,3}$', n):
raise InvalidFormat()
if n[:4] in _name_blacklist:
raise InvalidComponent()
_get_date(n[4:10])
elif len(n) == 12:
# number assigned to company
if not re.match(u'^[A-Z&Ñ]{3}[0-9]{6}[0-9A-Z]{3}$', n):
raise InvalidFormat()
_get_date(n[3:9])
else:
raise InvalidLength()
if validate_check_digits and len(n) >= 12:
if not re.match(u'^[1-9A-V][1-9A-Z][0-9A]$', n[-3:]):
raise InvalidComponent()
if n[-1] != calc_check_digit(n[:-1]):
raise InvalidChecksum()
return number
def calc_check_digits(number):
"""Calculate the check digits for the number."""
number = to_unicode(compact(number))
return (_check_digit(number[0:7] + number[14:18]) +
_check_digit(number[7:14] + number[14:18]))
def _to_min(court):
"""Convert the court name for quick comparison without encoding issues."""
return ''.join(x for x in unicodedata.normalize('NFD',
to_unicode(court).lower())
if x in 'abcdefghijklmnopqrstuvwxyz')