CheckDigits::M11_006(3User Contributed Perl DocumentatiCheckDigits::M11_006(3)NAME
CheckDigits::M11_006 - compute check digits for CA~Xdigo de Cuenta
Corriente (ES)
SYNOPSIS
use Algorithm::CheckDigits;
$ccc = CheckDigits('ccc_es');
if ($ccc->is_valid('2420-0730-27-0050103552')) {
# do something
}
$cn = $ccc->complete('2420-0730- -0050103552');
# $cn = '2420-0730-27-0050103552'
$cd = $ccc->checkdigit('2420-0730-27-0050103552');
# $cd = '27'
$bn = $ccc->basenumber('2420-0730-27-0050103552');
# $bn = '2420-0730- -0050103552';
DESCRIPTION
ALGORITHM
1. Beginning right all digits are weighted 6,3,7,9,10,5,8,4,2,1.
2. The weighted digits are added.
3. The sum of step 2 is taken modulo 11.
4. The checkdigit is 11 minus the sum from step 3.
If the difference is 10, the checkdigit is 1.
If the difference is 11, the checkdigit is 0.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and hyphens
and the two digits in the middle are valid check digits according
to the algorithm given above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and inserted into the
middle of $number.
Returns the complete number with check digit or '' if $number does
not consist solely of digits, hyphens and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check
digit.
Return '' otherwise.
checkdigit($number)
Returns the check digits of $number if $number has valid check
digits.
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 2011-06-20 CheckDigits::M11_006(3)
