CheckDigits::M10_002(3User Contributed Perl DocumentatiCheckDigits::M10_002(3)NAMECheckDigits::M10_002 - compute check digits for CINS (US), SIREN (FR),
SIRET (FR)
SYNOPSIS
use Algorithm::CheckDigits;
$siret = CheckDigits('siret');
if ($siret->is_valid('73282932000074')) {
# do something
}
$cn = $siret->complete('7328293200007');
# $cn = '73282932000074'
$cd = $siret->checkdigit('73282932000074');
# $cd = '4'
$bn = $siret->basenumber('73282932000074');
# $bn = '7328293200007'
DESCRIPTION
ALGORITHM
1. Beginning right all numbers are weighted alternatively 1 and 2.
2. The total of the digits of all products is computed.
3. The sum of step 3 ist taken modulo 10.
4. The check digit is the difference between 10 and the number from
step 3 taken modulo 10.
METHODS
is_valid($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.
www.dsi.cnrs.fr/bureau_qualite/admindonnees/documents/siren.pdf
perl v5.14.1 2009-11-20 CheckDigits::M10_002(3)