Files
flightgear/src/FDM/JSBSim/input_output/FGXMLParse.cpp
2022-10-20 20:29:11 +08:00

116 lines
3.5 KiB
C++

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Header: FGXMLParse.cpp
Author: Jon Berndt
Date started: 08/20/2004
Purpose: Config file read-in class and XML parser
Called by: Various
------------- Copyright (C) 2001 Jon S. Berndt (jon@jsbsim.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.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
INCLUDES
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#include "FGXMLParse.h"
#include "input_output/string_utilities.h"
using namespace std;
namespace JSBSim {
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS IMPLEMENTATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
void FGXMLParse::reset(void)
{
current_element = document = nullptr;
working_string.erase();
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void FGXMLParse::dumpDataLines(void)
{
if (!working_string.empty()) {
for (auto s: split(working_string, '\n'))
current_element->AddData(s);
}
working_string.erase();
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void FGXMLParse::startElement (const char * name, const XMLAttributes &atts)
{
if (!document) {
document = new Element(name);
current_element = document;
} else {
dumpDataLines();
Element* temp_element = new Element(name);
if (temp_element) {
temp_element->SetParent(current_element);
current_element->AddChildElement(temp_element);
}
current_element = temp_element;
}
if (!current_element) {
cerr << "In file " << getPath() << ": line " << getLine() << endl
<< "No current element read (running out of memory?)" << endl;
throw("Fatal error");
}
current_element->SetLineNumber(getLine());
current_element->SetFileName(getPath());
for (int i=0; i<atts.size();i++) {
current_element->AddAttribute(atts.getName(i), atts.getValue(i));
}
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void FGXMLParse::endElement (const char * name)
{
dumpDataLines();
current_element = current_element->GetParent();
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void FGXMLParse::data (const char * s, int length)
{
working_string += string(s, length);
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void FGXMLParse::warning (const char * message, int line, int column)
{
cerr << "Warning: " << message << " line: " << line << " column: " << column
<< endl;
}
} // end namespace JSBSim