(ucs-names): New internal variable.

[gnu-emacs] / lisp / mb-depth.el

diff --git a/lisp/mb-depth.el b/lisp/mb-depth.el
index 256c7ee6a99a7107eca590dffeb3923420797842..c1904323893a4494c1abc07eb5252bfe3632fc55 100644 (file)
--- a/lisp/mb-depth.el
+++ b/lisp/mb-depth.el
@@ -1,16 +1,16 @@
 ;;; mb-depth.el --- Indicate minibuffer-depth in prompt
 ;;
-;; Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 2006, 2007, 2008  Free Software Foundation, Inc.
 ;;
 ;; Author: Miles Bader <miles@gnu.org>
 ;; Keywords: convenience
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -18,9 +18,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 ;;
@@ -32,6 +30,11 @@
 
 ;;; Code:
 
+(defvar minibuf-depth-indicator-function nil
+  "If non-nil, function to set up the minibuffer depth indicator.
+It is called with one argument, the minibuffer depth,
+and must return a string.")
+
 ;; An overlay covering the prompt.  This is a buffer-local variable in
 ;; each affected minibuffer.
 ;;
@@ -45,8 +48,9 @@ The prompt should already have been inserted."
   (when (> (minibuffer-depth) 1)
     (setq minibuf-depth-overlay (make-overlay (point-min) (1+ (point-min))))
     (overlay-put minibuf-depth-overlay 'before-string
-                (propertize (format "[%d]" (minibuffer-depth))
-                            'face 'highlight))
+                (if minibuf-depth-indicator-function
+                    (funcall minibuf-depth-indicator-function (minibuffer-depth))
+                  (propertize (format "[%d]" (minibuffer-depth)) 'face 'highlight)))
     (overlay-put minibuf-depth-overlay 'evaporate t)))
 
 ;;;###autoload