arabica/Utils/ucs2utf8codecvt.hpp
2006-05-19 18:46:43 +00:00

78 lines
2.2 KiB
C++

#ifndef ARABICA_UCS2UTF8_CODECVT_HPP
#define ARABICA_UCS2UTF8_CODECVT_HPP
//---------------------------------------------------------------------------
// class ucs2utf8codecvt
// This facet converts from Unicode (UCS-2) wchar_ts to
// char using the UTF-8 encoding.
//
// For the full guff on codecvts see section 22.2.1.5 of
// The C++ Standard (ISO/IEC 14882 to be pedantic).
//
// I got my information about UTF-8 from RFC 2044.
//
// $Id$
//---------------------------------------------------------------------------
#include <SAX/ArabicaConfig.h>
#include <locale>
#ifndef ARABICA_NO_CODECVT_SPECIALISATIONS
#include <Utils/impl/codecvt_specialisations.h>
#endif
#ifdef ARABICA_VS6_WORKAROUND
#include <Utils/impl/VS6Workaround.h>
#endif
namespace Arabica
{
namespace convert
{
class ucs2utf8codecvt : public std::codecvt<char, wchar_t, std::mbstate_t>
{
public:
static std::locale::id id;
protected:
typedef std::codecvt_base::result result;
virtual ~ucs2utf8codecvt() { }
virtual result do_out(std::mbstate_t&,
const char* from,
const char* from_end,
const char*& from_next,
wchar_t* to,
wchar_t* to_limit,
wchar_t*& to_next) const;
virtual result do_in(std::mbstate_t&,
const wchar_t* from,
const wchar_t* from_end,
const wchar_t*& from_next,
char* to,
char* to_limit,
char*& to_next) const;
virtual result do_unshift(std::mbstate_t&,
wchar_t*,
wchar_t*,
wchar_t*&) const;
virtual int do_encoding() const throw() { return 0; }
virtual bool do_always_noconv() const throw() { return false; }
virtual int do_length(const std::mbstate_t&,
const wchar_t* from,
const wchar_t* end,
size_t max) const;
virtual int do_max_length() const throw() { return 1; }
}; // class ucs2utf8codecvt
} // namespace convert
} // namespace Arabica
#endif