Regular Expressions

Upper case for Roman numbers

Regular expression:
\b(?:M{0,3})(?:D?C{0,3}|C[DM])(?:L?X{0,3}|X[LC])(?:V?I{0,3}|I[VX])(?=(\.\s|\s|\)|$))

Replace matches with:
$upper($0)
[ ] case-sensitive comparison