From e5c029716743bb03aaf488616246b22c162a8ec8 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 30 Jun 2016 10:55:34 +0100
Subject: [PATCH] Added handling of false return

---
 src/osgPlugins/osg/XmlStreamOperator.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/osgPlugins/osg/XmlStreamOperator.h b/src/osgPlugins/osg/XmlStreamOperator.h
index 93e8b2257..33bb50f7a 100644
--- a/src/osgPlugins/osg/XmlStreamOperator.h
+++ b/src/osgPlugins/osg/XmlStreamOperator.h
@@ -482,7 +482,8 @@ public:
 
     virtual bool matchString( const std::string& str )
     {
-        prepareStream();
+        if (!prepareStream()) return false;
+
         std::string strInStream = osgDB::trimEnclosingSpaces(_sstream.str());
         if ( strInStream==str )
         {