String pattern for multiple field

Hi,

I have a list of fields; name,address,phone number,social security number, and I want to do pattern analysis; Replacing all letters with A, all numbers with 9. I can do pattern analysis on individual fields by applying regex for each. However, I would like to have a single function/formula that can do pattern analysis for all fields. Is it doable or do I need to apply regex for each field

Thanks