00001 // @HEADER 00002 // *********************************************************************** 00003 // 00004 // Teuchos: Common Tools Package 00005 // Copyright (2004) Sandia Corporation 00006 // 00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00008 // license for use of this work by or on behalf of the U.S. Government. 00009 // 00010 // This library is free software; you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as 00012 // published by the Free Software Foundation; either version 2.1 of the 00013 // License, or (at your option) any later version. 00014 // 00015 // This library is distributed in the hope that it will be useful, but 00016 // WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00018 // Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public 00021 // License along with this library; if not, write to the Free Software 00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00023 // USA 00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 00025 // 00026 // *********************************************************************** 00027 // @HEADER 00028 00029 #include "Teuchos_XMLInputSource.hpp" 00030 #include "Teuchos_TreeBuildingXMLHandler.hpp" 00031 00032 00033 #ifdef HAVE_TEUCHOS_EXPAT 00034 # include "Teuchos_ExpatHandlerAdapter.hpp" 00035 # define EXPAT_BUFSIZE 8192 00036 #else 00037 # include "Teuchos_XMLParser.hpp" 00038 #endif 00039 00040 using namespace Teuchos; 00041 00042 XMLObject XMLInputSource::getObject() const 00043 { 00044 00045 #ifdef HAVE_TEUCHOS_EXPAT 00046 00047 RCP<TreeBuildingXMLHandler> handler = rcp(new TreeBuildingXMLHandler()); 00048 00049 XML_Parser parser = XML_ParserCreate(NULL); 00050 00051 XML_SetElementHandler(parser, expatStartElementHandler, 00052 expatEndElementHandler); 00053 00054 XML_SetCharacterDataHandler(parser, expatCharacterDataHandler); 00055 00056 XML_SetUserData(parser, (void*) &(*handler)); 00057 00058 RCP<XMLInputStream> s = stream(); 00059 00060 bool done = false; 00061 unsigned int bufsize = EXPAT_BUFSIZE; 00062 unsigned char buf[EXPAT_BUFSIZE]; 00063 00064 while (!done) 00065 { 00066 unsigned int nRead = s->readBytes(buf, bufsize); 00067 if (nRead < bufsize) 00068 { 00069 done = true; 00070 } 00071 XML_Parse(parser, (char*) buf, bufsize, done); 00072 } 00073 00074 return handler->getObject(); 00075 00076 #else 00077 00078 XMLParser parser(stream()); 00079 00080 return parser.parse(); 00081 00082 #endif 00083 00084 } 00085 00086