RegEx Pattern Question

General
1

Hi. Does anyone know how to valiate whether a string is in the following format using RegEx?

XXXX-XXXX-XXXX-XXXX

And can you specify the length of string required in the same RegEx pattern check or do you have to also do a separate Is string.Len = 19 check?

Thanks!

2

Short answer, yes.

What do the Xs represent?

3

Hi Kem. The Xs would be random characters but they must conform to that specific pattern.

4

So they can be any character at all? Then this would be the regular expression pattern:

\\A\\S{4}-\\S{4}-\\S{4}-\\S{4}\\z

\A = beginning of document
\S = not white space
{4} = repeat 4 times
\z = end of document

5

That’s perfect. Thanks for your help and for breaking down the pattern for me.