[DiapDealer]

Originally Posted by roger64

However, I realize this does not select accented capitals that do exist in French (like É, À, Ô and so on). Of course, I can just suppress their accents. But if I wish to make a drop-cap out of an accented capital, what would be the code?

([.]) is a catch-all. Have you better?

\p{Lu}

Will catch all upper-case letters (including unicode characters), if that's what you're looking for. Add parentheses to make it a capture group if desired, of course.