table of contents
| Algorithm::CheckDigits::M10_006(3pm) | User Contributed Perl Documentation | Algorithm::CheckDigits::M10_006(3pm) |
NAME¶
CheckDigits::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, "<mamawe@cpan.org>"
SEE ALSO¶
perl, CheckDigits, www.pruefziffernberechnung.de.
| 2021-11-17 | perl v5.40.0 |