Convert this in validation expression driver's license numbers

Question

Hi I'm creating a registration page. It has "Enter License Number:" i want to create a validation expression that if the user type a wrong format in that field. The form will not be submitted. It must be corrected before they submitted. I dragged the "Regular Expression Validator" in my website. But they don't have a default expression for license number. I must custom the expression to have my own expression.

Now i only want to know what is the validation expression of this sample license number:

G11-11-004064 -- A Philippines sample driver's license.
LetterNumberNumber - NumberNumber - NumberNumberNumberNumberNumberNumber

Could you convert it?

Answer 1

Here's a regular expression editor. It's aimed towards Ruby but will do for .NET as well:

• http://rubular.com/

I don't know about the detailed specification of the license numbers you#re looking for, but I created a regex based on your example: ^[A-Z]\d{2}-\d{2}-\d{6}$.

You can modify it here:

• http://rubular.com/r/7bHsX1tJ23

The example explained:

^[A-Z]\d{2}-\d{2}-\d{6}$

^ = start of line

[A-Z] = a single upper case letter

\d{2} = any number with 2 digits

\d{6} = any number with 6 digits

$ = end of line

If you want to make sure you don't miss lower case letters starting the license use [A-Za-z] instead of [A-Z]

(Thanks to Paul Sullivan)

Answer 2

/[A-Za-z][0-9][0-9]-[0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]/

I'm sure this is as basic as it gets but it will match

see online regex tested