update sources to v12.2.3

[ceph.git] / ceph / src / boost / tools / quickbook / src / native_text.cpp

/*=============================================================================
    Copyright (c) 2009 Daniel James

    Use, modification and distribution is subject to 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 <boost/program_options.hpp>
#include <iostream>
#include "native_text.hpp"
#include "utils.hpp"

#if QUICKBOOK_WIDE_PATHS || QUICKBOOK_WIDE_STREAMS
#include <boost/scoped_ptr.hpp>
#include <windows.h>
#endif

namespace quickbook {
namespace detail {
// This is used for converting paths to UTF-8 on cygin.
// Might be better not to use a windows 
#if QUICKBOOK_WIDE_PATHS || QUICKBOOK_WIDE_STREAMS
    std::string to_utf8(std::wstring const& x)
    {
        int buffer_count = WideCharToMultiByte(CP_UTF8, 0, x.c_str(), -1, 0, 0, 0, 0);
    
        if (!buffer_count)
            throw conversion_error("Error converting wide string to utf-8.");

        boost::scoped_ptr<char> buffer(new char[buffer_count]);

        if (!WideCharToMultiByte(CP_UTF8, 0, x.c_str(), -1, buffer.get(), buffer_count, 0, 0))
            throw conversion_error("Error converting wide string to utf-8.");
        
        return std::string(buffer.get());
    }

    std::wstring from_utf8(quickbook::string_view text)
    {
        std::string x(text.begin(), text.end());
        int buffer_count = MultiByteToWideChar(CP_UTF8, 0, x.c_str(), -1, 0, 0);
    
        if (!buffer_count)
            throw conversion_error("Error converting utf-8 to wide string.");

        boost::scoped_ptr<wchar_t> buffer(new wchar_t[buffer_count]);

        if (!MultiByteToWideChar(CP_UTF8, 0, x.c_str(), -1, buffer.get(), buffer_count))
            throw conversion_error("Error converting utf-8 to wide string.");

        return std::wstring(buffer.get());
    }
#endif
}}