Algorithm::CheckDigits::M11_010 man page on Pidora

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CheckDigits::M11_010(3User Contributed Perl DocumentatiCheckDigits::M11_010(3)

NAME
       CheckDigits::M11_010 - compute check digits AHV number (CH)

SYNOPSIS
	 use Algorithm::CheckDigits;

	 $ahv = CheckDigits('ahv_ch');

	 if ($ahv->is_valid('123.45.678.113')) {
	       # do something
	 }

	 $cn = $ahv->complete('123.45.678.11');
	 # $cn = '123.45.678.113'

	 $cd = $ahv->checkdigit('123.45.678.113');
	 # $cd = '3'

	 $bn = $ahv->basenumber('123.45.678.113');
	 # $bn = '123.45.678.11';

DESCRIPTION
   ALGORITHM
       1.  Beginning left every digit is weighted with 5,4,3,2,7,6,5,4,3,2.

       2.  The weighted digits are added.

       3.  The sum from step 2 is taken modulo 11.

       4.  The checkdigit is 11 minus the sum from step 3. Is the difference
	   10, the number won't be taken. If the difference is 11, the
	   checkdigit is 0.

   METHODS
       is_valid($number)
	   Returns true only if $number consists solely of numbers and dots
	   and the rightmost 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 appended the end of
	   $number.

	   Returns the complete number with check digit or '' if $number does
	   not consist solely of digits and dots.

       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			  2009-11-20	       CheckDigits::M11_010(3)
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