Regex for non-consecutive upper-case words

Question

Here\'s one for you Regex wizards.

This is for use within Notepad++, i.e. it is entered directly into the search and replace dialog.

I need

Answer 1

I would try

(^|\.\s+|[a-z]\s+)([A-Z]+)(\.|\s+[a-z]|$)

That matches: a period or start-of-line or end of a lowercase word; followed by an uppercase word; followed by a period, end-of-line or start of a lowercase word.

The word itself is matched in group 2. If Notepad++ supports lookaround assertions, you can do this so that the only captured word is the single capitalized word:

(?:^|\.\s+|[a-z]\s+)([A-Z]+)(?:\.|\s+[a-z]|$)