arabica/Utils/utf8ucs2codecvt.h
2004-10-12 20:50:27 +00:00

75 lines
2.1 KiB
C++

#ifndef ARABICA_UTF8UCS2_CODECVT_H
#define ARABICA_UTF8UCS2_CODECVT_H
//---------------------------------------------------------------------------
// class utf8ucs2codecvt
// 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>
#ifndef ARABICA_NO_WCHAR_T
#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 utf8ucs2codecvt : public std::codecvt<wchar_t, char, std::mbstate_t>
{
protected:
virtual ~utf8ucs2codecvt() { }
virtual result do_out(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_in(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_unshift(std::mbstate_t&,
char*,
char*,
char*&) 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 char* from,
const char* end,
size_t max) const throw();
virtual int do_max_length() const throw() { return 3; }
}; // class utf8ucs2codecvt
} // namespace convert
} // namespace Arabica
#endif
#endif