Sync w. JSBSim CVS (merge from PRE_OSG_PLIB_20061029 branch)

diff --git a/src/FDM/JSBSim/input_output/FGXMLFileRead.h b/src/FDM/JSBSim/input_output/FGXMLFileRead.h
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+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+ Module:       FGXMLFileRead.h
+ Author:       Jon S. Berndt
+ Date started: 02/04/07
+ Purpose:      Shared base class that wraps the XML file reading logic
+
+ ------------- Copyright (C) 2007  Jon S. Berndt (jsb@hal-pc.org) -------------
+
+ This program 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 of the License, or (at your option) any later
+ version.
+
+ This program 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ Place - Suite 330, Boston, MA  02111-1307, USA.
+
+ Further information about the GNU Lesser General Public License can also be found on
+ the world wide web at http://www.gnu.org.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+SENTRY
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+#ifndef FGXMLFILEREAD_HEADER_H
+#define FGXMLFILEREAD_HEADER_H
+
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+INCLUDES
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+#include <input_output/FGXMLParse.h>
+
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+DEFINITIONS
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+#define ID_XMLFILEREAD "$Id$"
+
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+FORWARD DECLARATIONS
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+namespace JSBSim {
+
+class FGXMLFileRead {
+public:
+  FGXMLFileRead(void) {}
+  ~FGXMLFileRead(void) {}
+
+protected:
+  Element* document;
+  Element* LoadXMLDocument(string XML_filename)
+  {
+    ifstream infile;
+
+    if ( !XML_filename.empty() ) {
+      if (XML_filename.find(".xml") == string::npos) XML_filename += ".xml";
+      infile.open(XML_filename.c_str());
+      if ( !infile.is_open()) {
+        cerr << "Could not open file: " << XML_filename << endl;
+        return 0L;
+      }
+    } else {
+      cerr << "No filename given." << endl;
+      return 0L;
+    }
+
+    readXML(infile, file_parser);
+    document = file_parser.GetDocument();
+    infile.close();
+    
+    return document;
+  }
+  
+  void ResetParser(void) {file_parser.reset();}
+
+private:
+  FGXMLParse file_parser;
+};
+}
+#endif