Hello,
I have to write a function to input a Label and a number, and output a line as the following format:
Column 1 to 30: field label, left justified.
Column 31 to 45: A number, right justified.
The middle is padded with space. May I know how can I achieve this? (I don't know how to count... (3 Replies)
I need to right-pad with zeros a string by using (s)printf.
I looked up the manual and tried with
printf("%-19s", buffer);
which right-pad the string with spaces. So I tried
printf("%019s", buffer);
which left-pad the string with zeros. So I tried both
printf("%-019s", buffer);... (9 Replies)
I have number/strings like below
input =23412133
output = 234121330000 (depends on the number give at runtime)
i need to padd zeros based on runtime input . i tried below
printf ' %d%04d\n', "23412133";
But the precision 4 is static here how can i pass this as runtime input.
i am... (11 Replies)
Discussion started by: greenworld123
11 Replies
LEARN ABOUT DEBIAN
algorithm::checkdigits::mxx_001
CheckDigits::MXX_001(3pm) User Contributed Perl Documentation CheckDigits::MXX_001(3pm)NAME
CheckDigits::MXX_001 - compute check digits for PA (DE)
SYNOPSIS
use Algorithm::CheckDigits;
$pa = CheckDigits('pa_de');
if ($pa->is_valid('2406055684D<<6810203<0705109<6')) {
# do something
}
$cn = $pa->complete('240605568_D<<681020_<070510_<_');
# $cn = '2406055684D<<6810203<0705109<6'
$cd = $pa->checkdigit('2406055684D<<6810203<0705109<6');
# $cd = '6'
$bn = $pa->basenumber('2406055684D<<6810203<0705109<6');
# $bn = '240605568_D<<681020_<070510_<_'
DESCRIPTION
ALGORITHM
1. Beginning left all digits are weighted with 7,3,1,7,3,1,...
2. The sum of those products is computed.
3. The checksum is the last digit of the sum from step 2 (modulo 10).
4. Step 1 to 3 is performed for every part of the number and for all 3 parts including the particular checkdigit to compute the total
checksum.
METHODS
is_valid($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>
THANKS
Aaron W. West pointed me to a fault in the computing of the check digit.
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de, www.export911.com/e911/coding/upcChar.htm, www.adams1.com/pub/russadam/upccode.html,
http://www.upcdatabase.com.
perl v5.10.0 2008-05-17 CheckDigits::MXX_001(3pm)