source: downloads/boost_1_33_1/boost/archive/impl/xml_oarchive_impl.ipp @ 13

/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// xml_oarchive_impl.ipp:

// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#include <ostream>
#include <iomanip>
#include <algorithm>
#include <string>

#include <cstring> // strlen
#include <boost/config.hpp> // msvc 6.0 needs this to suppress warnings
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{ 
    using ::strlen; 
} // namespace std
#endif

#include <boost/archive/iterators/xml_escape.hpp>
#include <boost/archive/iterators/ostream_iterator.hpp>

#ifndef BOOST_NO_CWCHAR
#include <boost/archive/wcslen.hpp>
#include <boost/archive/iterators/mb_from_wchar.hpp>
#endif

namespace boost {
namespace archive {

/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// implemenations of functions specific to char archives

// wide char stuff used by char archives
#ifndef BOOST_NO_CWCHAR
// copy chars to output escaping to xml and translating wide chars to mb chars
template<class InputIterator>
void save_iterator(std::ostream &os, InputIterator begin, InputIterator end){
    typedef boost::archive::iterators::mb_from_wchar<
        boost::archive::iterators::xml_escape<InputIterator>
    > translator;
    std::copy(
        translator(BOOST_MAKE_PFTO_WRAPPER(begin)), 
        translator(BOOST_MAKE_PFTO_WRAPPER(end)), 
        boost::archive::iterators::ostream_iterator<char>(os)
    );
}

#ifndef BOOST_NO_STD_WSTRING
template<class Archive>
BOOST_ARCHIVE_DECL(void)
xml_oarchive_impl<Archive>::save(const std::wstring & ws){
//  at least one library doesn't typedef value_type for strings
//  so rather than using string directly make a pointer iterator out of it
//    save_iterator(os, ws.data(), ws.data() + std::wcslen(ws.data()));
    save_iterator(os, ws.data(), ws.data() + ws.size());
}
#endif

#ifndef BOOST_NO_INTRINSIC_WCHAR_T
template<class Archive>
BOOST_ARCHIVE_DECL(void)
xml_oarchive_impl<Archive>::save(const wchar_t * ws){
    save_iterator(os, ws, ws + std::wcslen(ws));
}
#endif

#endif // BOOST_NO_CWCHAR

template<class Archive>
BOOST_ARCHIVE_DECL(void)
xml_oarchive_impl<Archive>::save(const std::string & s){
//  at least one library doesn't typedef value_type for strings
//  so rather than using string directly make a pointer iterator out of it
    typedef boost::archive::iterators::xml_escape<
        const char * 
    > xml_escape_translator;
    std::copy(
        xml_escape_translator(BOOST_MAKE_PFTO_WRAPPER(s.data())),
        xml_escape_translator(BOOST_MAKE_PFTO_WRAPPER(s.data()+ s.size())), 
        boost::archive::iterators::ostream_iterator<char>(os)
    );
}

template<class Archive>
BOOST_ARCHIVE_DECL(void)
xml_oarchive_impl<Archive>::save(const char * s){
    typedef boost::archive::iterators::xml_escape<
        const char * 
    > xml_escape_translator;
    std::copy(
        xml_escape_translator(BOOST_MAKE_PFTO_WRAPPER(s)),
        xml_escape_translator(BOOST_MAKE_PFTO_WRAPPER(s + std::strlen(s))), 
        boost::archive::iterators::ostream_iterator<char>(os)
    );
}

template<class Archive>
BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY())
xml_oarchive_impl<Archive>::xml_oarchive_impl(
    std::ostream & os_, 
    unsigned int flags
) : 
    basic_text_oprimitive<std::ostream>(
        os_,
        0 != (flags & no_codecvt)
    ),
    basic_xml_oarchive<Archive>(flags)
{
    if(0 == (flags & no_header))
        this->init();
}

} // namespace archive
} // namespace boost