Unfilled Gaps

I’d like to create a simple scan to look at the 60-minute bars on the E-mini S&P to see if there are any open gaps (unfilled). Here's the basic idea...

An unfilled gap up is defined as follows: The next bar (Bar 2) opens above the previous bar’s (Bar 1) close and then no low on Bar 2 or any subsequent bar (i.e, Bar 3 low, Bar 4 low, Bar 5 low, etc) goes below the close of Bar 1.

An unfilled gap down is defined as follows: The next bar (Bar 2) opens below the previous bar’s (Bar 1) close and then no high on Bar 2 or any subsequent bar (i.e, Bar 3 high, Bar 4 high, Bar 5 high, etc) goes above the close of Bar 1.

I checked the "Unfilled Gap" script in TOS and it doesn't test what I'm looking for based on the above. Does anyone have a TOS script that would show the open (unfilled) gaps based on the above criteria? Any help would be appreciated.