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mlpack/fastlib/trilinos/include/Teuchos_TreeBuildingXMLHandler.hpp
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// @HEADER
// ***********************************************************************
//
// Teuchos: Common Tools Package
// Copyright (2004) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef Teuchos_TREEBUILDINGXMLHANDLER_H
#define Teuchos_TREEBUILDINGXMLHANDLER_H
/*! \file Teuchos_TreeBuildingXMLHandler.hpp
\brief Defines a class for assembling an XMLObject from XML input
*/
#include "Teuchos_ConfigDefs.hpp"
#include "Teuchos_XMLObject.hpp"
#include <list>
#include <stack>
namespace Teuchos
{
/** \ingroup XML
* \brief TreeBuildingXMLHandler assembles a XMLObject from your XML input.
*/
class TreeBuildingXMLHandler
{
typedef Teuchos::map<std::string, std::string> Map;
public:
/** \brief Empty constructor */
TreeBuildingXMLHandler();
/** \brief Retrieve the entire XML tree */
const XMLObject& getObject() const
{
// valid XML requires a root object; we will allow empty XML files
TEST_FOR_EXCEPTION(
root_.isEmpty(), EmptyXMLError
,"Error, An empty XML std::string or file was specified!"
" The XML specification requires at minimum the presence"
" of a root element!" );
return root_.getChild(0);
}
/** \brief Process character data */
void characters(const std::string& chars);
/** \brief Receive notification of the end of an element */
int endElement(const std::string& tag);
/** \brief Receive notification of the start of an element */
void startElement(const std::string& tag,
const Map& attributes);
private:
XMLObject root_;
XMLObject current_;
std::stack<XMLObject> path_;
};
}
#endif