mirror of
https://github.com/jezhiggins/arabica
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61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
#ifndef ARABICA_UTF16UTF8_CODECVT_H
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#define ARABICA_UTF16UTF8_CODECVT_H
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//---------------------------------------------------------------------------
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// class utf16utf8codecvt
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// This facet converts from Unicode (UCS-2) wchar_ts to
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// char using the UTF-8 encoding.
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//
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// For the full guff on codecvts see section 22.2.1.5 of
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// The C++ Standard (ISO/IEC 14882 to be pedantic).
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//
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// I got my information about UTF-8 from RFC 2044.
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//
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// $Id$
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//---------------------------------------------------------------------------
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#include <locale>
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#if(_MSC_VER < 1300)
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namespace std {
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typedef ::mbstate_t mbstate_t;
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}
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#endif
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class utf16utf8codecvt : public std::codecvt<char, wchar_t, std::mbstate_t>
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{
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protected:
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virtual ~utf16utf8codecvt() { }
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virtual result do_out(std::mbstate_t&,
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const char* from,
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const char* from_end,
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const char*& from_next,
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wchar_t* to,
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wchar_t* to_limit,
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wchar_t*& to_next) const;
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virtual result do_in(std::mbstate_t&,
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const wchar_t* from,
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const wchar_t* from_end,
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const wchar_t*& from_next,
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char* to,
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char* to_limit,
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char*& to_next) const;
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virtual result do_unshift(std::mbstate_t&,
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wchar_t*,
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wchar_t*,
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wchar_t*&) const;
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virtual int do_encoding() const throw() { return 0; }
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virtual bool do_always_noconv() const throw() { return false; }
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virtual int do_length(const std::mbstate_t&,
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const wchar_t* from,
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const wchar_t* end,
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size_t max) const;
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virtual int do_max_length() const throw() { return 1; }
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}; // class utf16utf8codecvt
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#endif
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