:type '(choice (integer :tag "Limit")
(const :tag "No limit")))
-;; Would it be cleaner to specify Latin-1 coding for this file,
-;; and not use both unibyte and multibyte copyright symbol characters?
-
-;; The character classes include the unibyte (C) sign,
-;; the Latin-1 version, and the Latin-9 version.
+;; The character classes have the Latin-1 version and the Latin-9
+;; version, which is probably enough.
(defcustom copyright-regexp
"\\([\81©\8e©]\\|@copyright{}\\|[Cc]opyright\\s *:?\\s *\\(?:(C)\\)?\
\\|[Cc]opyright\\s *:?\\s *[\81©\8e©]\\)\