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CheckDigits::M11_004(3pm) User Contributed Perl Documentation CheckDigits::M11_004(3pm)

NAME

CheckDigits::M11_004 - compute check digits for CPF (BR), Título Eleitoral (BR)

SYNOPSIS

  use Algorithm::CheckDigits;
  $cpf = CheckDigits('cpf');
  if ($cpf->is_valid('043.033.407-90')) {
        # do something
  }
  $cn = $cpf->complete('043.033.407-');
  # $cn = '043.033.407-90'
  $cd = $cpf->checkdigit('043.033.407-90');
  # $cd = '90'
  $bn = $cpf->basenumber('043.033.407-90');
  # $bn = '043.033.407-'

DESCRIPTION

ALGORITHM

1.
From left to right all digits are multiplied with their position in the sequence.
2.
The sum of all products is computed.
3.
The sum of step 2 is taken modulo 11.

a) If the result is 0 or 1 the checkdigit is 0

b) otherwise the checkdigit is 11 minus the result.

4.
The first checkdigit is appended to the number and step 1 to 3 are repeated.

METHODS

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,

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.

Returns the basenumber of $number if $number has a valid check digit.

Return '' otherwise.

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.

POD ERRORS

Hey! The above document had some coding errors, which are explained below:

Non-ASCII character seen before =encoding in 'Título'. Assuming CP1252
2021-01-03 perl v5.32.0