I think I got it (the 4th character is always a letter):
EXPRESSION /^[0-9]{0,3}[1-9]{1,3}[0-9]{0,3}[A-Z]/
Berend
On Fri, 10 Sep 2004 13:37:15 +0200, Berend Veldkamp
<berend.veldkamp at ARIS.NL> wrote:
>I thought of that, but it would not catch "012" or "990". I want only
>those records that don't start with exactly 3 zeroes.
>
>Berend
>
>