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'
The checksum is the whole number taken modulo 89.
Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given above.
$number
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.
None by default.
Mathias Weidner, <mamawe@cpan.org>
<mamawe@cpan.org>
perl, CheckDigits, www.pruefziffernberechnung.de.
To install Algorithm::CheckDigits, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Algorithm::CheckDigits
CPAN shell
perl -MCPAN -e shell install Algorithm::CheckDigits
For more information on module installation, please visit the detailed CPAN module installation guide.