I have a application maked in AppSheet and I need that one form field allow values with format “LNN/LNN”, or LNN-NN/LNN-NN. Using the regular expression “/^[a-zA-Z]\d{1,2}(?:-\d{1,2})?/[a-zA-Z]\d{1,2}(?:-\d{1,2})?$/g” I can see that its work as I require, but I see that AppSheet not have a “RegExp” functión or simllar for apply this solution.
There some method for make this validation in AppSheet?