algorithm::checkdigits::mbase_003(3pm) [debian man page]

CheckDigits::MBase_003(3pm)				User Contributed Perl Documentation			       CheckDigits::MBase_003(3pm)

NAME

       CheckDigits::MBase_003 - compute check digits for SICI (Serial Item and Contribution Identifier)

SYNOPSIS

	 use Algorithm::CheckDigits;

	 $sici = CheckDigits('sici');

	 if ($sici->is_valid('0784-8679(20040308)6:<138>2.0.TX;2-H')) {
	       # do something
	 }

	 $cn = $sici->complete('0784-8679(20040308)6:<138>2.0.TX;2-');
	 # $cn = '0784-8679(20040308)6:<138>2.0.TX;2-H'

	 $cd = $sici->checkdigit('0784-8679(20040308)6:<138>2.0.TX;2-H');
	 # $cd = 'H'

	 $bn = $sici->basenumber('0784-8679(20040308)6:<138>2.0.TX;2-H');
	 # $bn = '0784-8679(20040308)6:<138>2.0.TX;2-';

DESCRIPTION

   ALGORITHM
       0   In the string describing the number all letters (A-Z) are replaced with numbers 10-35 accordingly. All other non-numbers are replaced
	   by 36.

       1   Beginning right the numbers at all odd positions are added.

       2   The sum from step 1 is multiplied by 3.

       3   Beginning right the numbers at all even positions are added.

       4   The sums from step 2 and 3 are added.

       5   The sum from step 4 is taken modulo 37.

       6   The checksum is 37 minus the sum from step 5 where numbers from 10 to 35 are represented by 'A' to 'Z' accordingly and 36 is
	   represented by '#'.

   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, http://sunsite.berkeley.edu/SICI/sici.pdf

perl v5.10.0							    2008-05-17					       CheckDigits::MBase_003(3pm)

Check Out this Related Man Page

CheckDigits::M23_002(3pm)				User Contributed Perl Documentation				 CheckDigits::M23_002(3pm)

NAME

       CheckDigits::M23_002 - compute check digits for VAT Registration Number (IE)

SYNOPSIS

	 use Algorithm::CheckDigits;

	 $dni = CheckDigits('ustid_ie');

	 if ($dni->is_valid('8473625E')) {
	       # do something
	 }

	 $cn = $dni->complete('8473625');
	 # $cn = '8473625E'

	 $cd = $dni->checkdigit('8473625E');
	 # $cd = 'E'

	 $bn = $dni->basenumber('8473625E');
	 # $bn = '8473625'

DESCRIPTION

   ALGORITHM
       1.  Beginning right all digits are weighted with their position in the number (i.e. the number left from the check digit is multiplied with
	   2, the next with 3 and so on).

       2.  All products are added.

       3.  The check digit is the sum from step 2 modulo 23. This number is expressed as the corresponding letter from the alphabet where A-V
	   correspond to 1-22 and W stands for check digit 0.

   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.

perl v5.10.0							    2008-05-17						 CheckDigits::M23_002(3pm)

Linux and UNIX Man Pages

algorithm::checkdigits::mbase_003(3pm) [debian man page]

Check Out this Related Man Page