it's an identification number of the shape 9525423E. @digits is gotten using a split:
I think in this case you're better of using a regex, so you can verify the input split more conveniently: 
my $input = '9525429E';

if ( $input =~ /^([0-9]{7})([A-Z])$/ )
{
    my @digits = split //, $1;
    print "@digits, $2";
}
else
{
    print "invalid input";
}

[download]


holli, /regexed monk/

In reply to Re^2: A better way than || by holli
in thread A better way than || by Anonymous Monk

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