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Top Forums Shell Programming and Scripting What can i do to check that the input is all alphabet.. ? Post 14012 by XXXXXXXXXX on Sunday 27th of January 2002 02:41:02 AM
Old 01-27-2002
What can i do to check that the input is all alphabet.. ?

What can i do to check that the input is all alphabet.. ?
Test Your Knowledge in Computers #70
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Unix was developed in AT&T's Bell Labs in the mid-to-late 1950's.
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CheckDigits::M10_006(3pm)				User Contributed Perl Documentation				 CheckDigits::M10_006(3pm)

CheckDigits::M10_006 - compute check digits for Rentenversicherung (DE) SYNOPSIS
use Algorithm::CheckDigits; $rv = CheckDigits('rentenversicherung'); if ($rv->is_valid('65180539W001')) { # do something } $cn = $rv->complete('65180539W00'); # $cn = '65180539W001' $cd = $rv->checkdigit('65180539W001'); # $cd = '1' $bn = $rv->basenumber('65180539W001'); # $bn = '65180539W00' DESCRIPTION
ALGORITHM 1. The letter is replaced with a two-figure number appropriate to the position of the letter in the german alphabet. 2. Beginning left all numbers are weighted with 2,1,2,5,7,1,2,1,2,1,2,1. 3. The the total of the digits of all products is computed. 4. The check digit is sum from step 3 taken modulo 10. METHODS is_valid($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, <> SEE ALSO
perl, CheckDigits, perl v5.10.0 2008-05-17 CheckDigits::M10_006(3pm)

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