1Algorithm::CheckDigits:U:sMe4r3_C0o0n1t(r3i)buted Perl DAolcguomreintthamt:i:oCnheckDigits::M43_001(3)
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NAME

6       CheckDigits::M43_001 - compute check digits for Code-39
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SYNOPSIS

9         use Algorithm::CheckDigits;
10
11         $c39 = CheckDigits('code_39');
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13         if ($c39->is_valid('AB-123K')) {
14               # do something
15         }
16
17         $cn = $c39->complete('AB-123');
18         # $cn = 'AB-123K'
19
20         $cd = $c39->checkdigit('AB-123K');
21         # $cd = 'K'
22
23         $bn = $c39->basenumber('AB-123K');
24         # $bn = 'AB-123'
25

DESCRIPTION

27   ALGORITHM
28       1.  After replacing all non numeric letters with their respective
29           values, the sum of all numbers is computers
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31       2.  The checkdigit is the sum from step 1 taken modulo 43.
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33   METHODS
34       is_valid($number)
35           Returns true only if $number consists solely of numbers and the
36           last digit is a valid check digit according to the algorithm given
37           above.
38
39           Returns false otherwise,
40
41       complete($number)
42           The check digit for $number is computed and concatenated to the end
43           of $number.
44
45           Returns the complete number with check digit or '' if $number does
46           not consist solely of digits and spaces.
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48       basenumber($number)
49           Returns the basenumber of $number if $number has a valid check
50           digit.
51
52           Return '' otherwise.
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54       checkdigit($number)
55           Returns the checkdigit of $number if $number has a valid check
56           digit.
57
58           Return '' otherwise.
59
60   EXPORT
61       None by default.
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AUTHOR

64       Mathias Weidner, "<mamawe@cpan.org>"
65

SEE ALSO

67       perl, CheckDigits, www.pruefziffernberechnung.de.
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71perl v5.34.0                      2021-07-22Algorithm::CheckDigits::M43_001(3)