Variable: footnote-latin-regexp
footnote-latin-regexp is a variable defined in footnote.el.gz.
Value
"[¹²³ºª§¶]"
Documentation
Regexp for Latin-1 footnoting characters.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/footnote.el.gz
;; Note not [...]+, because this style cycles.
(defconst footnote-latin-regexp (concat "[" footnote-latin-string "]")
"Regexp for Latin-1 footnoting characters.")