CheckDigits::M10_006(3User Contributed Perl DocumentatiCheckDigits::M10_006(3)NAMECheckDigits::M10_006 - compute check digits for Rentenversicherung (DE)
SYNOPSIS
use Algorithm::CheckDigits;
$rv = CheckDigits('rentenversicherung');
if ($rv->is_valid('65180539W001')) {
# do something
}
$cn = $rv->complete('65180539W00');
# $cn = '65180539W001'
$cd = $rv->checkdigit('65180539W001');
# $cd = '1'
$bn = $rv->basenumber('65180539W001');
# $bn = '65180539W00'
DESCRIPTION
ALGORITHM
1. The letter is replaced with a two-figure number appropriate to the
position of the letter in the german alphabet.
2. Beginning left all numbers are weighted with
2,1,2,5,7,1,2,1,2,1,2,1.
3. The the total of the digits of all products is computed.
4. The check digit is sum from step 3 taken modulo 10.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and the
last digit is a valid check digit according to the algorithm given
above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and concatenated to the end
of $number.
Returns the complete number with check digit or '' if $number does
not consist solely of digits and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check
digit.
Return '' otherwise.
checkdigit($number)
Returns the checkdigit of $number if $number has a valid check
digit.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.
perl v5.14.1 2009-11-20 CheckDigits::M10_006(3)