# Suite 330, Boston, MA 02111-1307 USA
use strict;
+use warnings;
+
require Exporter;
use C4::Context;
use CGI;
@ISA = qw(Exporter);
@EXPORT = qw(
- &checkdigit &checkvalidisbn
+ &checkdigit
&buildCGIsort
);
return 0;
} # sub checkdigit
-=item checkvalidisbn # Obsolete Function!
-
- $valid = &checkvalidisbn($isbn);
-
-Returns a true value iff C<$isbn> is a valid ISBN: it must be ten
-digits long (counting "X" as a digit), and must have a valid check
-digit at the end.
-
-sub checkvalidisbn ($) { # Obsolete Function!
- my ($q) = shift or return undef;
- $q=~s/[^Xx\d]//g;
- /(\d{9})(X|\d)/i or
- /(\d{12})(X|\d)/i or return 0;
- my $checksum = $2;
- my $isbn = $1;
- my $c = 0;
- my $max = length $isbn;
- for (my $i=0; $i<$max; $i++) {
- my $digit=substr($q,$i,1);
- $c+=$digit*(10-$i);
- }
- $c %= 11;
- ($c==10) and $c = 'X';
- return ($c eq $checksum) ? 1 : 0;
-}
-
=item buildCGISort
- $CGIScrollingList = &BuildCGISort($name string, $input_name string);
+ $CGIScrollingList = &buildCGISort($name string, $input_name string);
Returns the scrolling list with name $input_name, built on authorised Values named $name.
Returns NULL if no authorised values found