1CheckDigits::M10_005(3)User Contributed Perl DocumentatioCnheckDigits::M10_005(3)
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NAME

6       CheckDigits::M10_005 - compute check digits for Deutsche Post
7       Identcode/Leitcode (DE)
8

SYNOPSIS

10         use Algorithm::CheckDigits;
11
12         $ic = CheckDigits('identcode_dp');
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14         if ($ic->is_valid('21.802 580.906 6')) {
15               # do something
16         }
17
18         $cn = $ic->complete('21.802 580.906');
19         # $cn = '21.802 580.9066'
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21         $cd = $ic->checkdigit('21.802 580.906 6');
22         # $cd = '6'
23
24         $bn = $ic->basenumber('21.802 580.906 6');
25         # $bn = '21.802 580.906'
26

DESCRIPTION

28   ALGORITHM
29       1.  Beginning left all numbers are weighted alternatively 4 and 9.
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31       2.  The sum of all products is computed.
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33       3.  The sum of step 3 ist taken modulo 10.
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35       4.  The check digit is the difference between 10 and the number from
36           step 3.
37
38   METHODS
39       is_valid($number)
40           Returns true only if $number consists solely of numbers and the
41           last digit is a valid check digit according to the algorithm given
42           above.
43
44           Returns false otherwise,
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46       complete($number)
47           The check digit for $number is computed and concatenated to the end
48           of $number.
49
50           Returns the complete number with check digit or '' if $number does
51           not consist solely of digits and spaces.
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53       basenumber($number)
54           Returns the basenumber of $number if $number has a valid check
55           digit.
56
57           Return '' otherwise.
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59       checkdigit($number)
60           Returns the checkdigit of $number if $number has a valid check
61           digit.
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63           Return '' otherwise.
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65   EXPORT
66       None by default.
67

AUTHOR

69       Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
70

SEE ALSO

72       perl, CheckDigits, www.pruefziffernberechnung.de.
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76perl v5.12.1                      2009-11-20           CheckDigits::M10_005(3)