Regex is much easier if you don't do it all at once. It's perfectly acceptable to, say, trim all the leading spaces, store the result in a temp variable, trim

Regex is much easier if you don't do it all at once. It's perfectly acceptable to, say, trim all the leading spaces, store the result in a temp variable, trim all the trailing spaces, store the result in a temp variable, remove all the hyphens. etc. etc. Everyone tries to create the platonic ideal regex that does everything in one line.