Fixes: debbugs:6594

[gnu-emacs] / lisp / emacs-lisp / re-builder.el

diff --git a/lisp/emacs-lisp/re-builder.el b/lisp/emacs-lisp/re-builder.el
index ec1a704ce0b230c933868b55004ea56cd551b29b..fd47c57640404991387ab7336255a78332407775 100644 (file)
--- a/lisp/emacs-lisp/re-builder.el
+++ b/lisp/emacs-lisp/re-builder.el
@@ -1,7 +1,7 @@
 ;;; re-builder.el --- building Regexps with visual feedback
 
 ;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;;   2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
 
 ;; Author: Detlev Zundel <dzu@gnu.org>
 ;; Keywords: matching, lisp, tools
@@ -247,7 +247,9 @@ Except for Lisp syntax this is the same as `reb-regexp'.")
                  :help "Quit the RE Builder mode"))
     (define-key menu-map [rt]
       '(menu-item "Case sensitive" reb-toggle-case
-                 :button (:toggle . case-fold-search)
+                 :button (:toggle . (with-current-buffer
+                                        reb-target-buffer
+                                      (null case-fold-search)))
                  :help "Toggle case sensitivity of searches for RE Builder target buffer"))
     (define-key menu-map [rb]
       '(menu-item "Change target buffer..." reb-change-target-buffer