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550 lines
20 KiB
C++
550 lines
20 KiB
C++
// -*- C++ -*-
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// clang-format off
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//===-------------------------- codecvt -----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CODECVT
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#define _LIBCPP_CODECVT
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#include "third_party/libcxx/__config"
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#include "third_party/libcxx/__locale"
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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/*
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codecvt synopsis
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namespace std
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{
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enum codecvt_mode
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{
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consume_header = 4,
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generate_header = 2,
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little_endian = 1
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};
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template <class Elem, unsigned long Maxcode = 0x10ffff,
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codecvt_mode Mode = (codecvt_mode)0>
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class codecvt_utf8
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: public codecvt<Elem, char, mbstate_t>
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{
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explicit codecvt_utf8(size_t refs = 0);
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~codecvt_utf8();
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};
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template <class Elem, unsigned long Maxcode = 0x10ffff,
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codecvt_mode Mode = (codecvt_mode)0>
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class codecvt_utf16
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: public codecvt<Elem, char, mbstate_t>
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{
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explicit codecvt_utf16(size_t refs = 0);
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~codecvt_utf16();
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};
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template <class Elem, unsigned long Maxcode = 0x10ffff,
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codecvt_mode Mode = (codecvt_mode)0>
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class codecvt_utf8_utf16
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: public codecvt<Elem, char, mbstate_t>
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{
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explicit codecvt_utf8_utf16(size_t refs = 0);
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~codecvt_utf8_utf16();
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};
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} // std
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*/
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enum codecvt_mode
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{
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consume_header = 4,
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generate_header = 2,
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little_endian = 1
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};
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// codecvt_utf8
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template <class _Elem> class __codecvt_utf8;
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8<wchar_t>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8<char16_t>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8<char32_t>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <class _Elem, unsigned long _Maxcode = 0x10ffff,
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codecvt_mode _Mode = (codecvt_mode)0>
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class _LIBCPP_TEMPLATE_VIS codecvt_utf8
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: public __codecvt_utf8<_Elem>
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{
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public:
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_LIBCPP_INLINE_VISIBILITY
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explicit codecvt_utf8(size_t __refs = 0)
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: __codecvt_utf8<_Elem>(__refs, _Maxcode, _Mode) {}
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_LIBCPP_INLINE_VISIBILITY
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~codecvt_utf8() {}
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};
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// codecvt_utf16
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template <class _Elem, bool _LittleEndian> class __codecvt_utf16;
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<wchar_t, false>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<wchar_t, true>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char16_t, false>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char16_t, true>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char32_t, false>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char32_t, true>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <class _Elem, unsigned long _Maxcode = 0x10ffff,
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codecvt_mode _Mode = (codecvt_mode)0>
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class _LIBCPP_TEMPLATE_VIS codecvt_utf16
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: public __codecvt_utf16<_Elem, _Mode & little_endian>
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{
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public:
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_LIBCPP_INLINE_VISIBILITY
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explicit codecvt_utf16(size_t __refs = 0)
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: __codecvt_utf16<_Elem, _Mode & little_endian>(__refs, _Maxcode, _Mode) {}
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_LIBCPP_INLINE_VISIBILITY
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~codecvt_utf16() {}
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};
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// codecvt_utf8_utf16
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template <class _Elem> class __codecvt_utf8_utf16;
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<wchar_t>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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|
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<char32_t>
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: public codecvt<char32_t, char, mbstate_t>
|
|
{
|
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unsigned long _Maxcode_;
|
|
codecvt_mode _Mode_;
|
|
public:
|
|
typedef char32_t intern_type;
|
|
typedef char extern_type;
|
|
typedef mbstate_t state_type;
|
|
|
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
|
|
codecvt_mode _Mode)
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|
: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
|
|
_Mode_(_Mode) {}
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|
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 _LIBCPP_TYPE_VIS __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_INLINE_VISIBILITY
|
|
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_TEMPLATE_VIS codecvt_utf8_utf16
|
|
: public __codecvt_utf8_utf16<_Elem>
|
|
{
|
|
public:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit codecvt_utf8_utf16(size_t __refs = 0)
|
|
: __codecvt_utf8_utf16<_Elem>(__refs, _Maxcode, _Mode) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
~codecvt_utf8_utf16() {}
|
|
};
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_CODECVT
|