On Thu, Feb 5, 2009 at 2:16 PM, John Pretz <jpretz@lanl.gov> wrote:
Paul,

You can turn off the wrapping boost_serialization tag by giving your archive the boost::archive::no_header switch.  There's a boost::archive::no_tracking switch, but it doesn't seem to turn off the 'class_id' and 'tracking_level' stuff.

John

#include <fstream>
#include <iostream>
#include <boost/archive/xml_oarchive.hpp>




class MyClass
{
private:
  friend class boost::serialization::access;

  template<class Archive>
  void serialize(Archive &ar, const unsigned int version){};

public:
  MyClass(){};
  friend std::ostream & operator<<(std::ostream &os, const MyClass &gp);
  virtual ~MyClass(){};
};

int main( int argc, char** argv[] )

{
  MyClass mc;

//    std::ofstream ofs("MyFile.xml");
  boost::archive::xml_oarchive oa(std::cout,boost::archive::no_header);

  oa << boost::serialization::make_nvp( "MYTAG", mc );

  return 0;
}



Paul Heil wrote:
I'd like to use the boost::serialization library to generate XML that must be read by a third party application. Unfortunately, this application does not like the extra stuff that the serialization library generates.

The code below generates XML that looks like this:
   <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
   <!DOCTYPE boost_serialization>
   <boost_serialization signature="serialization::archive" version="5">
   <MYTAG class_id="0" tracking_level="0" version="0"></MYTAG>
   </boost_serialization>

What I need is XML that looks more like this:
   <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
   <MYTAG></MYTAG>


What can I do to eliminate the extra stuff?

Thanks,
PaulH

class MyClass
{
private:
   friend class boost::serialization::access;

   template<class Archive>
   void serialize(Archive &ar, const unsigned int version){};

public:
   MyClass(){};
   friend std::ostream & operator<<(std::ostream &os, const MyClass &gp);
   virtual ~MyClass(){};
};

int main( int argc, _TCHAR* argv[] )
{
   MyClass mc;

   std::ofstream ofs("MyFile.xml");
   boost::archive::xml_oarchive oa(ofs);
   oa << boost::serialization::make_nvp( "MYTAG", mc );

   return 0;
}
------------------------------------------------------------------------

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Unfortunately, the "no_header" flags turns off the xml version header which I actually do need to keep:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

-PaulH