[patch] bug 2908: LyX 1.4.3 crashes when exiting empty subscripts

[Jean-Marc Lasgouttes]

The following patch fixes the crash described in the bug: popRight
should not blindly go one step on the right, since notifyCursorLeave
may cause a script inset to commit suicide. The situation is still not
perfect if the nucleus contained more than one character, but I think
it will have to do for now.

I'll commit tomorrow if nobody complains.

JMarc


Index: src/cursor.C
===================================================================
--- src/cursor.C	(revision 16397)
+++ src/cursor.C	(working copy)
@@ -364,7 +364,8 @@ bool LCursor::popRight()
 	if (depth() == 1)
 		return false;
 	pop();
-	++pos();
+	if (pos() < lastpos())
+		++pos();
 	return true;
 }