If cur specified in OhmmsXPathObject, set cur as context.

git-svn-id: https://subversion.assembla.com/svn/qmcdev/trunk@6235 e5b18d87-469d-4833-9cc0-8cdfa06e9491

src/OhmmsData/Libxml2Doc.cpp

@@ -19,6 +19,7 @@
 #include "Message/Communicate.h"
 #include "Utilities/Timer.h"
 #include <fstream>
+#include <iostream>
 
 OhmmsXPathObject::OhmmsXPathObject(): NumObjects(0), result(NULL),m_context(NULL)
 {
@@ -30,9 +31,12 @@ OhmmsXPathObject::OhmmsXPathObject(const char* expression,
   put(expression, context);
 }
 
-OhmmsXPathObject::OhmmsXPathObject(const char* expression, xmlNodePtr cur) :NumObjects(0), result(NULL)
+OhmmsXPathObject::OhmmsXPathObject(const char* expression, xmlNodePtr cur) :NumObjects(0), result(NULL), m_context(NULL)
 {
   m_context= xmlXPathNewContext(cur->doc);
+  //sets up "cur" as the context, and will return matches within this node
+  // if not overridden in "expression".
+  xmlXPathSetContextNode(cur, m_context);
   put(expression, m_context);
 }
 

src/OhmmsData/Libxml2Doc.h

@@ -19,7 +19,7 @@
 #include "OhmmsData/libxmldefs.h"
 #include <string>
 /** class to handle xmlXPathObject
- */
+ */ 
 struct OhmmsXPathObject
 {