RegEx-Putting pub. date after first sentence in title if two or more sentenced title

Hello

As in thread name - is it possible(and if yes any guides?), by I guess some regular expression template and save to disk option, to add a published date to a filename when saving book to disk in a way that if the title is two sentenced long or more( e.g.: Title. Title Tile - Author), the date would be inserted after the first sentence( Title[date]. Title - Author), and obviously one sentenced titles would also work the same (Title[date] - Author).

Thank You.