There’s a couple examples of name origin updater scripts for the SuperTool addon in the “Tree vivisection experiments with the Isotammi SuperTool” topic.
One looks though a selection of Families and checks the children’s Surname against the Father’s. If they match and there isn’t an origin yet, it sets the Origin to Patrilineal.
The other checks against the Spouse and set the Origin to Taken when there is a match. All these surnames of Taken origin should be of Married type.