08-08-2006
restricting user input as required
Hi,
I want the user to enter only numeric values and also he should only enter
2 digits only ( eg 23 or 23 or 03 any 2 digits)
For the above purpose how should i declare my variable ?
integer value
if I read 03 in variable value then it gives me error ...also user can enter n number of digits ..how can i restrict it to only 2 digits ...
Thanks ...
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LEARN ABOUT DEBIAN
algorithm::checkdigits::m11_006
CheckDigits::M11_006(3pm) User Contributed Perl Documentation CheckDigits::M11_006(3pm)
NAME
CheckDigits::M11_006 - compute check digits for Codigo de Cuenta Corriente (ES)
SYNOPSIS
use Algorithm::CheckDigits;
$ccc = CheckDigits('ccc_es');
if ($ccc->is_valid('2420-0730-27-0050103552')) {
# do something
}
$cn = $ccc->complete('2420-0730- -0050103552');
# $cn = '2420-0730-27-0050103552'
$cd = $ccc->checkdigit('2420-0730-27-0050103552');
# $cd = '27'
$bn = $ccc->basenumber('2420-0730-27-0050103552');
# $bn = '2420-0730- -0050103552';
DESCRIPTION
ALGORITHM
1. Beginning right all digits are weighted 6,3,7,9,10,5,8,4,2,1.
2. The weighted digits are added.
3. The sum of step 2 is taken modulo 11.
4. The checkdigit is 11 minus the sum from step 3.
If the difference is 10, the checkdigit is 1.
If the difference is 11, the checkdigit is 0.
METHODS
is_valid($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,
perl v5.10.0 2008-05-17 CheckDigits::M11_006(3pm)