Man pages sections > man3 > Algorithm::CheckDigits::M23_001

CheckDigits::M23_001 - compute check digits for DNI (ES)

CheckDigits::M23_001(3pm) User Contributed Perl Documentation CheckDigits::M23_001(3pm)

NAME

CheckDigits::M23_001 - compute check digits for DNI (ES)

SYNOPSIS

  use Algorithm::CheckDigits;
  $dni = CheckDigits('dni_es');
  if ($dni->is_valid('54362315K')) {
        # do something
  }
  $cn = $dni->complete('54362315');
  # $cn = '54362315K'
  $cd = $dni->checkdigit('54362315K');
  # $cd = 'K'
  $bn = $dni->basenumber('54362315K');
  # $bn = '54362315'

DESCRIPTION

ALGORITHM

1.
The checkdigit is the whole number taken modulo 23 and coded according to a keytable.

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.
2008-05-17 perl v5.10.0