Variable: footnote-roman-lower-regexp
footnote-roman-lower-regexp is a variable defined in footnote.el.gz.
Value
"[ivxlcdm]+"
Documentation
Regexp of roman numerals.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/footnote.el.gz
(defconst footnote-roman-lower-regexp
(concat "[" (mapconcat #'cdr footnote-roman-lower-list "") "]+")
"Regexp of roman numerals.")