Can Deluge be used for conditional formatting of records?

Can Deluge be used for conditional formatting of records?

Hi all,

I need to highlight records in a report that meet certain criteria. Unfortunately this criteria depends on related records from a different form, so regular conditional formatting in the report "configure fields for web" page will not work.

There are two separate forms:  Student, and Attendance Records. I need to highlight students that have not shown up in the last 2 weeks.

I don't think I can use a formula field in the parent form, since I need to refer to records in another form for criteria. 

Is there a way to use deluge functions to do this?