is there a elegant way to parse a word and add spaces before capital letters

Question

i need to parse some data and i want to convert

AutomaticTrackingSystem

to

Automatic Tracking System

esse

Answer 1

If you seek to keep acronyms intact, replace "([^A-Z])([A-Z])" with "\1 \2", else replace "(.)([A-Z])" with "\1 \2".