#include "../config/pathan_config.h"
/*
 * Copyright (c) 2001, DecisionSoft Limited All rights reserved.
 * Please see LICENSE.TXT for more information.
 */

#include <pathan/internal/navigation/DescendantAxis.hpp>
#include <xercesc/dom/DOMNode.hpp>
#include <pathan/Node.hpp>

NavStepImpl::Axis DescendantAxis::getAxis() const {
  return NavStepImpl::DESCENDANT;
}

Sequence DescendantAxis::makeList(const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *node, const XMLCh* const uri, DynamicContext* context) const
{
  XPath2MemoryManager* memMgr=context->getMemoryManager();
  Sequence returnList(memMgr);
  makeListHelper(node, &returnList, uri, context);
 
  return returnList;
}//makeList


void DescendantAxis::makeListHelper(const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *node, Sequence *retList, const XMLCh* const uri, DynamicContext* context) const
{
  XPath2MemoryManager* memMgr=context->getMemoryManager();
  XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *child = node->getFirstChild();
  while (child != 0) {

    // add the node only if it is not an entity reference
    if(child->getNodeType() != XERCES_CPP_NAMESPACE_QUALIFIER DOMNode::ENTITY_REFERENCE_NODE && filterNode(child,uri,context))
      retList->addItem(memMgr->createNode(child));

    // now add the children of that node    
    makeListHelper(child, retList, uri, context);
    
    child = child->getNextSibling();
  }//while
}//makeListHelper