Custom profile field input mask regex help

[TurtleKicker]

Ok, I suck at this regex stuff. Can't wrap my head around how to do what I want based upon the resources I've found.

Goal: input field with text in the format nnnn-nnnn-nnnn
So 3 sets of 4 numeric digits, separated by 2 hyphens.

Something like:

Code Select Expand

~[0-9]{4}-[0-9]{4}-[0-9]{4}~

Is that right?

[Arantor]

Looks right to me.