Variable: footnote-roman-upper-regexp
footnote-roman-upper-regexp is a variable defined in footnote.el.gz.
Value
"[IVXLCDM]+"
Documentation
Regexp of roman numerals. Not complete.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/footnote.el.gz
(defconst footnote-roman-upper-regexp (upcase footnote-roman-lower-regexp)
"Regexp of roman numerals. Not complete.")