CheckDigits::M10_009 - compute check digits for Betriebsnummer (DE)
use Algorithm::CheckDigits; $betrnr = CheckDigits('betriebsnummer'); if ($betrnr->is_valid('73282932000074')) { # do something } $cn = $betrnr->complete('7328293200007'); # $cn = '73282932000074' $cd = $betrnr->checkdigit('73282932000074'); # $cd = '4' $bn = $betrnr->basenumber('73282932000074'); # $bn = '7328293200007'
HINT: The last digit of the 'Betriebsnummer' may be the check digit or the last digit of the sum of the constant 5 and the check digit.
Returns true only if $number
consists solely of numbers and the last digit is a valid check digit according to the algorithm given above.
Returns false otherwise,
The check digit for $number
is computed and concatenated to the end of $number
.
Returns the complete number with check digit or '' if $number
does not consist solely of digits and spaces.
Returns the basenumber of $number
if $number
has a valid check digit.
Return '' otherwise.
Returns the checkdigit of $number
if $number
has a valid check digit.
Return '' otherwise.
None by default.
Mathias Weidner, <mamawe@cpan.org>
perl, CheckDigits, www.pruefziffernberechnung.de. www.dsi.cnrs.fr/bureau_qualite/admindonnees/documents/siren.pdf