CheckDigits::M89_001 - compute check digits for VAT Registration Number (LU)
use Algorithm::CheckDigits; $ustid = CheckDigits('ustid_lu'); if ($ustid->is_valid('13669580')) { # do something } $cn = $ustid->complete('136695'); # $cn = '13669580' $cd = $ustid->checkdigit('13669580'); # $cd = '80' $bn = $ustid->basenumber('13669580'); # $bn = '136695'
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.