From 219f06f7b847f4a905d670ad067c4eb6b953aae3 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Sun, 22 Apr 2007 16:56:19 +0000
Subject: [PATCH] (read-number): Catch errors.

---
 lisp/subr.el | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lisp/subr.el b/lisp/subr.el
index fac2398a795..a05c1d15780 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -1735,9 +1735,11 @@ The value of DEFAULT is inserted into PROMPT."
 	  (let ((str (read-from-minibuffer prompt nil nil nil nil
 					   (and default
 						(number-to-string default)))))
-	    (setq n (cond
-		     ((zerop (length str)) default)
-		     ((stringp str) (read str)))))
+	    (condition-case nil
+		(setq n (cond
+			 ((zerop (length str)) default)
+			 ((stringp str) (read str))))
+	      (error nil)))
 	  (unless (numberp n)
 	    (message "Please enter a number.")
 	    (sit-for 1)
-- 
2.11.4.GIT