Teuchos_XMLInputSource.cpp

// @HEADER
// *****************************************************************************
//                    Teuchos: Common Tools Package
//
// Copyright 2004 NTESS and the Teuchos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
 
#include "Teuchos_XMLInputSource.hpp"
#include "Teuchos_TreeBuildingXMLHandler.hpp"
 
 
#ifdef HAVE_TEUCHOS_EXPAT
#  include "Teuchos_ExpatHandlerAdapter.hpp"
#  define EXPAT_BUFSIZE 8192
#else
#  include "Teuchos_XMLParser.hpp"
#endif
 
using namespace Teuchos;
 
XMLObject XMLInputSource::getObject() const
{
 
#ifdef HAVE_TEUCHOS_EXPAT
 
  RCP<TreeBuildingXMLHandler> handler = rcp(new TreeBuildingXMLHandler());
 
  XML_Parser parser = XML_ParserCreate(NULL);
 
  XML_SetElementHandler(parser, expatStartElementHandler,
                        expatEndElementHandler);
 
  XML_SetCharacterDataHandler(parser, expatCharacterDataHandler);
 
  XML_SetUserData(parser, (void*) &(*handler));
 
  RCP<XMLInputStream> s = stream();
 
  bool done = false;
  unsigned int bufsize = EXPAT_BUFSIZE;
  unsigned char buf[EXPAT_BUFSIZE];
 
  while (!done)
    {
      unsigned int nRead = s->readBytes(buf, bufsize);
      if (nRead < bufsize)
        {
          done = true;
        }
      XML_Parse(parser, (char*) buf, bufsize, done);
    }
 
  return handler->getObject();
 
#else
 
  XMLParser parser(stream());
 
  return parser.parse();
 
#endif
 
}