is NOT only letters or numbers:
REFindNoCase("^(?![a-z]{3}|\d{3})\w{3}.*\d{7}$",str)
On CF5 I would do 2 operations:
Use the regexp provided below. If it checks, extract the first three
digits and see if they contain a letter AND a number.
Pascal
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Sent: vrijdag 6 februari 2004 4:18
> To: CF-Talk
> Subject: Re: Serial Number
>
> This worked, but, the first 3 must contain letter(s) AND
> number(s), not
> letter(s) OR number(s). How would I do that? Thanks!
>
>
> > refind("^[a-zA-Z0-9]{3}.*[0-9]{7}$", str)
> >
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