;;; regexp-opt.el --- generate efficient regexps to match strings
-;; Copyright (C) 1994-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1994-2013 Free Software Foundation, Inc.
;; Author: Simon Marshall <simon@gnu.org>
;; Maintainer: FSF
(defun regexp-opt-charset (chars)
- "Return a regexp to match a character in CHARS."
+ "Return a regexp to match a character in CHARS.
+CHARS should be a list of characters."
;; The basic idea is to find character ranges. Also we take care in the
;; position of character set meta characters in the character set regexp.
;;