Been searching and cannot seem to see if this is possible or not.
I want to be able to check what is entered into a field by using a regex expression. Is this possible?
Background - I have a client who wants a CF to show a what3words (https://what3words.com) address. I want to be able to put a validation in on this field that will only allow entries that satisfy the criteria of a regex so that the value can be used in a url correctly