?i?zUdZddlmZddldZerddlmZeeeZdZ de d<ddd Z ddd Z ddd Z ddd Zy )aThe Damm algorithm. The Damm algorithm is a check digit algorithm that should detect all single-digit errors and all adjacent transposition errors. Based on anti-symmetric quasigroup of order 10 it uses a substitution table. This implementation uses the table from Wikipedia by default but a custom table can be provided. More information: * https://en.wikipedia.org/wiki/Damm_algorithm >>> validate('572') Traceback (most recent call last): ... InvalidChecksum: ... >>> calc_check_digit('572') '4' >>> validate('5724') '5724' >>> table = ( ... (0, 2, 3, 4, 5, 6, 7, 8, 9, 1), ... (2, 0, 4, 1, 7, 9, 5, 3, 8, 6), ... (3, 7, 0, 5, 2, 8, 1, 6, 4, 9), ... (4, 1, 8, 0, 6, 3, 9, 2, 7, 5), ... (5, 6, 2, 9, 0, 7, 4, 1, 3, 8), ... (6, 9, 7, 3, 1, 0, 8, 5, 2, 4), ... (7, 5, 1, 8, 4, 2, 0, 9, 6, 3), ... (8, 4, 6, 2, 9, 5, 3, 0, 1, 7), ... (9, 8, 5, 7, 3, 1, 6, 4, 0, 2), ... (1, 3, 9, 6, 8, 4, 2, 7, 5, 0)) >>> checksum('816', table=table) 9 ) annotations)*F)Sequence) ) r ) rrr rrr r r r r) r rrr r rrrr r ) rrr rr r rr rr ) r rrrrr r r rr ) rr rr rrr r r r) r r r r rrrrrr ) r r r r rr rrrr) r r rr r rrrrr ) rr r rr rr rr r DammTable_operation_tableNc`|xst}d}t|D]}||t|}|S)zCalculate the Damm checksum over the provided number. The checksum is returned as an integer value and should be 0 when valid.r)rstrint)numbertableins R/var/www/html/myprovider/mon_projet_qr/lib/python3.12/site-packages/stdnum/damm.pychecksumrPs>  %%E A [ !HSV  Hct|s t t||dk(}|s t |S#t$r twxYw)7Check if the number provided passes the Damm algorithm.rr)bool InvalidFormatr ExceptionInvalidChecksum)rrvalids rvalidater#ZsS <ou-2  M os 5A cN tt||S#t$rYywxYw)rrF)rr#ValidationErrorrrs ris_validr'gs+HV5122 s  $$c.tt||S)z^Calculate the extra digit that should be appended to the number to make it a valid number.r)rrr&s rcalc_check_digitr)os xe, --r)N)rrrDammTable | Nonereturnr)rrrr*r+r)rrrr*r+r)__doc__ __future__rstdnum.exceptions TYPE_CHECKINGcollections.abcrrrr__annotations__rr#r'r)rrr3sQ("H# (#'I $) $  .r