From 8aef287d1e78682504c84c81e646a42a6730939e Mon Sep 17 00:00:00 2001
From: jenglish <jenglish@flightlab.com>
Date: Mon, 31 May 2010 17:35:29 +0000
Subject: Tk_CreateBinding): Silently ignore empty scripts (Fixes [Bug
 3006842]).

---
 ChangeLog        | 5 +++++
 generic/tkBind.c | 8 ++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ee9628b..9380d80 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-05-31  Joe English <jenglish@users.sourceforge.net>
+
+	* generic/tkBind.c(Tk_CreateBinding): Silently ignore empty 
+	scripts (Fixes [Bug 3006842]).
+
 2010-05-27  Joe English <jenglish@users.sourceforge.net>
 
 	* generic/ttk/ttkTreeview.c, tests/ttk/treeview.test:
diff --git a/generic/tkBind.c b/generic/tkBind.c
index 67231cd..c610330 100644
--- a/generic/tkBind.c
+++ b/generic/tkBind.c
@@ -11,7 +11,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tkBind.c,v 1.65 2010/05/17 17:19:22 jenglish Exp $
+ * RCS: @(#) $Id: tkBind.c,v 1.66 2010/05/31 17:35:29 jenglish Exp $
  */
 
 #include "tkInt.h"
@@ -958,6 +958,10 @@ Tk_CreateBinding(
     unsigned long eventMask;
     char *newStr, *oldStr;
 
+    if (!*script) {
+	/* Silently ignore empty scripts -- see SF#3006842 */
+	return 1;
+    }
     psPtr = FindSequence(interp, &bindPtr->patternTable, object, eventString,
 	    1, 1, &eventMask);
     if (psPtr == NULL) {
@@ -1019,7 +1023,7 @@ Tk_CreateBinding(
 /*
  *---------------------------------------------------------------------------
  *
- * TkCreateBindingFunction --
+ * TkCreateBindingProcedure --
  *
  *	Add a C binding to a binding table, so that future calls to
  *	Tk_BindEvent may callback the function in the binding.
-- 
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