rebuild 100M lines from scratch? sounds impossible to me. You can re implement the applications that are causing problems maybe one at a time maybe. I don't u

rebuild 100M lines from scratch? sounds impossible to me. You can re implement the applications that are causing problems maybe one at a time maybe. I don't understand what you want to get syntax trees for, but it sounds like you are gonna need to store them in a database and do queries on it if there really is info that you need.