From fdb594455b1fd2c06d508ee24079ccae64cbe11b Mon Sep 17 00:00:00 2001
From: Kenichi Handa <handa@m17n.org>
Date: Thu, 1 Feb 2007 01:45:04 +0000
Subject: [PATCH] (quail-show-key): Signal an error if the current input method
 is not using Quail.

---
 lisp/international/quail.el | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lisp/international/quail.el b/lisp/international/quail.el
index aec2358fdaa..7cedcbf665a 100644
--- a/lisp/international/quail.el
+++ b/lisp/international/quail.el
@@ -2772,6 +2772,8 @@ If CHAR is an ASCII character and can be input by typing itself, return t."
   (interactive)
   (or current-input-method
       (error "No input method is activated"))
+  (or (assoc current-input-method quail-package-alist)
+      (error "The current input method is not using Quail."))
   (let* ((char (following-char))
 	 (key-list (quail-find-key char)))
     (cond ((consp key-list)
-- 
2.39.2