| // -*- C++ -*- |
| //===-------------------------- codecvt -----------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_CODECVT |
| #define _LIBCPP_CODECVT |
| |
| /* |
| codecvt synopsis |
| |
| namespace std |
| { |
| |
| enum codecvt_mode |
| { |
| consume_header = 4, |
| generate_header = 2, |
| little_endian = 1 |
| }; |
| |
| template <class Elem, unsigned long Maxcode = 0x10ffff, |
| codecvt_mode Mode = (codecvt_mode)0> |
| class codecvt_utf8 |
| : public codecvt<Elem, char, mbstate_t> |
| { |
| // unspecified |
| }; |
| |
| template <class Elem, unsigned long Maxcode = 0x10ffff, |
| codecvt_mode Mode = (codecvt_mode)0> |
| class codecvt_utf16 |
| : public codecvt<Elem, char, mbstate_t> |
| { |
| // unspecified |
| }; |
| |
| template <class Elem, unsigned long Maxcode = 0x10ffff, |
| codecvt_mode Mode = (codecvt_mode)0> |
| class codecvt_utf8_utf16 |
| : public codecvt<Elem, char, mbstate_t> |
| { |
| // unspecified |
| }; |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| #include <__locale> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| enum codecvt_mode |
| { |
| consume_header = 4, |
| generate_header = 2, |
| little_endian = 1 |
| }; |
| |
| // codecvt_utf8 |
| |
| template <class _Elem> class __codecvt_utf8; |
| |
| template <> |
| class __codecvt_utf8<wchar_t> |
| : public codecvt<wchar_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef wchar_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf8<char16_t> |
| : public codecvt<char16_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char16_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf8<char32_t> |
| : public codecvt<char32_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char32_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <class _Elem, unsigned long _Maxcode = 0x10ffff, |
| codecvt_mode _Mode = (codecvt_mode)0> |
| class _LIBCPP_VISIBLE codecvt_utf8 |
| : public __codecvt_utf8<_Elem> |
| { |
| public: |
| _LIBCPP_ALWAYS_INLINE |
| explicit codecvt_utf8(size_t __refs = 0) |
| : __codecvt_utf8<_Elem>(__refs, _Maxcode, _Mode) {} |
| |
| _LIBCPP_ALWAYS_INLINE |
| ~codecvt_utf8() {} |
| }; |
| |
| // codecvt_utf16 |
| |
| template <class _Elem, bool _LittleEndian> class __codecvt_utf16; |
| |
| template <> |
| class __codecvt_utf16<wchar_t, false> |
| : public codecvt<wchar_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef wchar_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf16<wchar_t, true> |
| : public codecvt<wchar_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef wchar_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf16<char16_t, false> |
| : public codecvt<char16_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char16_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf16<char16_t, true> |
| : public codecvt<char16_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char16_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf16<char32_t, false> |
| : public codecvt<char32_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char32_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf16<char32_t, true> |
| : public codecvt<char32_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char32_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <class _Elem, unsigned long _Maxcode = 0x10ffff, |
| codecvt_mode _Mode = (codecvt_mode)0> |
| class _LIBCPP_VISIBLE codecvt_utf16 |
| : public __codecvt_utf16<_Elem, _Mode & little_endian> |
| { |
| public: |
| _LIBCPP_ALWAYS_INLINE |
| explicit codecvt_utf16(size_t __refs = 0) |
| : __codecvt_utf16<_Elem, _Mode & little_endian>(__refs, _Maxcode, _Mode) {} |
| |
| _LIBCPP_ALWAYS_INLINE |
| ~codecvt_utf16() {} |
| }; |
| |
| // codecvt_utf8_utf16 |
| |
| template <class _Elem> class __codecvt_utf8_utf16; |
| |
| template <> |
| class __codecvt_utf8_utf16<wchar_t> |
| : public codecvt<wchar_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef wchar_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf8_utf16<char32_t> |
| : public codecvt<char32_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char32_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <> |
| class __codecvt_utf8_utf16<char16_t> |
| : public codecvt<char16_t, char, mbstate_t> |
| { |
| unsigned long _Maxcode_; |
| codecvt_mode _Mode_; |
| public: |
| typedef char16_t intern_type; |
| typedef char extern_type; |
| typedef mbstate_t state_type; |
| |
| _LIBCPP_ALWAYS_INLINE |
| explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode, |
| codecvt_mode _Mode) |
| : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
| _Mode_(_Mode) {} |
| protected: |
| virtual result |
| do_out(state_type& __st, |
| const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual result |
| do_in(state_type& __st, |
| const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
| intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
| virtual result |
| do_unshift(state_type& __st, |
| extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
| virtual int do_encoding() const throw(); |
| virtual bool do_always_noconv() const throw(); |
| virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
| size_t __mx) const; |
| virtual int do_max_length() const throw(); |
| }; |
| |
| template <class _Elem, unsigned long _Maxcode = 0x10ffff, |
| codecvt_mode _Mode = (codecvt_mode)0> |
| class _LIBCPP_VISIBLE codecvt_utf8_utf16 |
| : public __codecvt_utf8_utf16<_Elem> |
| { |
| public: |
| _LIBCPP_ALWAYS_INLINE |
| explicit codecvt_utf8_utf16(size_t __refs = 0) |
| : __codecvt_utf8_utf16<_Elem>(__refs, _Maxcode, _Mode) {} |
| |
| _LIBCPP_ALWAYS_INLINE |
| ~codecvt_utf8_utf16() {} |
| }; |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_CODECVT |