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/*
* Copyright (C) 2014 Tommi Maekitalo
*
* 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.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
This program demonstrates how to read a xml structure with xml attributes.
*/
#include <iostream>
#include <sstream>
#include <cxxtools/xml/xml.h>
#include <cxxtools/serializationinfo.h>
// We define a object, which describes the structure, we read from xml.
class MyObject
{
friend void operator>>= (const cxxtools::SerializationInfo& si, MyObject& obj);
std::string _stringValue;
int _intValue;
public:
const std::string& stringValue() const
{ return _stringValue; }
int intValue() const
{ return _intValue; }
};
// The deserialization helper operator converts the SerializationInfo to our object
void operator>>= (const cxxtools::SerializationInfo& si, MyObject& obj)
{
si.getMember("stringValue") >>= obj._stringValue;
si.getMember("intValue") >>= obj._intValue;
}
int main(int argc, char* argv[])
{
try
{
// Xml is read from a std::istream
std::istringstream in("<object stringValue=\"hello\" intValue=\"42\"/>");
// We define a object and use the deserialization helper function cxxtools::xml::Xml
// which makes it easy to use the xml deserializer
//
// By default the values are read from sub nodes. Here we want to read the
// xml attributes.
MyObject o;
in >> cxxtools::xml::Xml(o).readAttributes(true);
// To see the result, we print our object to std::cout.
std::cout << "string value=" << o.stringValue() << '\n'
<< "int value=" << o.intValue() << std::endl;
}
catch (const std::exception& e)
{
std::cerr << e.what() << std::endl;
}
}
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