table of contents
| Algorithm::CheckDigits::M10_011(3pm) | User Contributed Perl Documentation | Algorithm::CheckDigits::M10_011(3pm) |
NAME¶
CheckDigits::M10_011 - compute check digits UPS (US)
SYNOPSIS¶
use Algorithm::CheckDigits;
$ups = CheckDigits('ups');
if ($ups->is_valid('1Z 591580 68 55587736')) {
# do something
}
$cn = $ups->complete('1Z 591580 68 5558773');
# $cn = '1Z 591580 68 55587736'
$cd = $ups->checkdigit('1Z 591580 68 55587736');
# $cd = '6'
$bn = $ups->basenumber('1Z 591580 68 55587736');
# $bn = '1Z 591580 68 5558773'
DESCRIPTION¶
ALGORITHM¶
- 1.
- Beginning left all numbers are weighted alternatively 1 and 2.
- 2.
- The sum of all products is computed.
- 3.
- The sum of step 3 ist taken modulo 10.
- 4.
- The check digit is the difference between 10 and the number from step 3.
METHODS¶
- is_valid($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 |