mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-07-12 15:14:35 +00:00
WIP of the rapidJson update
This commit is contained in:
Areloch
parent
af27fea500
commit
dbd48cdbc1
39 changed files with 15695 additions and 2707 deletions
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@ -1,250 +1,299 @@
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// Tencent is pleased to support the open source community by making RapidJSON available.
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//
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// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
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//
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// Licensed under the MIT License (the "License"); you may not use this file except
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// in compliance with the License. You may obtain a copy of the License at
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//
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// http://opensource.org/licenses/MIT
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//
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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#ifndef RAPIDJSON_ENCODEDSTREAM_H_
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#define RAPIDJSON_ENCODEDSTREAM_H_
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#include "rapidjson.h"
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#include "stream.h"
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#include "memorystream.h"
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namespace rapidjson {
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#ifdef __GNUC__
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RAPIDJSON_DIAG_PUSH
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RAPIDJSON_DIAG_OFF(effc++)
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#endif
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#ifdef __clang__
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RAPIDJSON_DIAG_PUSH
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RAPIDJSON_DIAG_OFF(padded)
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#endif
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RAPIDJSON_NAMESPACE_BEGIN
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//! Input byte stream wrapper with a statically bound encoding.
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/*!
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\tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
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\tparam InputByteStream Type of input byte stream. For example, FileReadStream.
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\tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
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\tparam InputByteStream Type of input byte stream. For example, FileReadStream.
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*/
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template <typename Encoding, typename InputByteStream>
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class EncodedInputStream {
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RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
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RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
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public:
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typedef typename Encoding::Ch Ch;
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typedef typename Encoding::Ch Ch;
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EncodedInputStream(InputByteStream& is) : is_(is) {
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current_ = Encoding::TakeBOM(is_);
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}
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EncodedInputStream(InputByteStream& is) : is_(is) {
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current_ = Encoding::TakeBOM(is_);
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}
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Ch Peek() const { return current_; }
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Ch Take() { Ch c = current_; current_ = Encoding::Take(is_); return c; }
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size_t Tell() const { return is_.Tell(); }
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Ch Peek() const { return current_; }
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Ch Take() { Ch c = current_; current_ = Encoding::Take(is_); return c; }
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size_t Tell() const { return is_.Tell(); }
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// Not implemented
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void Put(Ch c) { RAPIDJSON_ASSERT(false); }
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void Flush() { RAPIDJSON_ASSERT(false); }
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Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
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size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
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// Not implemented
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void Put(Ch) { RAPIDJSON_ASSERT(false); }
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void Flush() { RAPIDJSON_ASSERT(false); }
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Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
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size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
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private:
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// Prohibit assignment for VC C4512 warning
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EncodedInputStream& operator=(const EncodedInputStream&);
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EncodedInputStream(const EncodedInputStream&);
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EncodedInputStream& operator=(const EncodedInputStream&);
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InputByteStream& is_;
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Ch current_;
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InputByteStream& is_;
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Ch current_;
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};
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//! Specialized for UTF8 MemoryStream.
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template <>
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class EncodedInputStream<UTF8<>, MemoryStream> {
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public:
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typedef UTF8<>::Ch Ch;
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EncodedInputStream(MemoryStream& is) : is_(is) {
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if (static_cast<unsigned char>(is_.Peek()) == 0xEFu) is_.Take();
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if (static_cast<unsigned char>(is_.Peek()) == 0xBBu) is_.Take();
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if (static_cast<unsigned char>(is_.Peek()) == 0xBFu) is_.Take();
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}
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Ch Peek() const { return is_.Peek(); }
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Ch Take() { return is_.Take(); }
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size_t Tell() const { return is_.Tell(); }
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// Not implemented
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void Put(Ch) {}
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void Flush() {}
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Ch* PutBegin() { return 0; }
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size_t PutEnd(Ch*) { return 0; }
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MemoryStream& is_;
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private:
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EncodedInputStream(const EncodedInputStream&);
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EncodedInputStream& operator=(const EncodedInputStream&);
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};
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//! Output byte stream wrapper with statically bound encoding.
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/*!
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\tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
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\tparam InputByteStream Type of input byte stream. For example, FileWriteStream.
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\tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
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\tparam OutputByteStream Type of input byte stream. For example, FileWriteStream.
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*/
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template <typename Encoding, typename OutputByteStream>
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class EncodedOutputStream {
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RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
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RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
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public:
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typedef typename Encoding::Ch Ch;
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typedef typename Encoding::Ch Ch;
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EncodedOutputStream(OutputByteStream& os, bool putBOM = true) : os_(os) {
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if (putBOM)
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Encoding::PutBOM(os_);
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}
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EncodedOutputStream(OutputByteStream& os, bool putBOM = true) : os_(os) {
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if (putBOM)
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Encoding::PutBOM(os_);
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}
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void Put(Ch c) { Encoding::Put(os_, c); }
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void Flush() { os_.Flush(); }
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void Put(Ch c) { Encoding::Put(os_, c); }
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void Flush() { os_.Flush(); }
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// Not implemented
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Ch Peek() const { RAPIDJSON_ASSERT(false); }
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Ch Take() { RAPIDJSON_ASSERT(false); }
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size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
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Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
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size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
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// Not implemented
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Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;}
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Ch Take() { RAPIDJSON_ASSERT(false); return 0;}
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size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
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Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
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size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
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private:
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// Prohibit assignment for VC C4512 warning
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EncodedOutputStream& operator=(const EncodedOutputStream&);
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EncodedOutputStream(const EncodedOutputStream&);
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EncodedOutputStream& operator=(const EncodedOutputStream&);
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OutputByteStream& os_;
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OutputByteStream& os_;
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};
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#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x
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//! Input stream wrapper with dynamically bound encoding and automatic encoding detection.
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/*!
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\tparam CharType Type of character for reading.
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\tparam InputByteStream type of input byte stream to be wrapped.
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\tparam CharType Type of character for reading.
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\tparam InputByteStream type of input byte stream to be wrapped.
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*/
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template <typename CharType, typename InputByteStream>
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class AutoUTFInputStream {
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RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
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RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
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public:
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typedef CharType Ch;
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typedef CharType Ch;
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//! Constructor.
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/*!
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\param is input stream to be wrapped.
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\param type UTF encoding type if it is not detected from the stream.
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*/
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AutoUTFInputStream(InputByteStream& is, UTFType type = kUTF8) : is_(&is), type_(type), hasBOM_(false) {
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DetectType();
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static const TakeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Take) };
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takeFunc_ = f[type_];
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current_ = takeFunc_(*is_);
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}
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//! Constructor.
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/*!
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\param is input stream to be wrapped.
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\param type UTF encoding type if it is not detected from the stream.
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*/
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AutoUTFInputStream(InputByteStream& is, UTFType type = kUTF8) : is_(&is), type_(type), hasBOM_(false) {
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RAPIDJSON_ASSERT(type >= kUTF8 && type <= kUTF32BE);
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DetectType();
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static const TakeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Take) };
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takeFunc_ = f[type_];
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current_ = takeFunc_(*is_);
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}
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UTFType GetType() const { return type_; }
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bool HasBOM() const { return hasBOM_; }
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UTFType GetType() const { return type_; }
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bool HasBOM() const { return hasBOM_; }
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Ch Peek() const { return current_; }
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Ch Take() { Ch c = current_; current_ = takeFunc_(*is_); return c; }
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size_t Tell() const { return is_->Tell(); }
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Ch Peek() const { return current_; }
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Ch Take() { Ch c = current_; current_ = takeFunc_(*is_); return c; }
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size_t Tell() const { return is_->Tell(); }
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// Not implemented
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void Put(Ch) { RAPIDJSON_ASSERT(false); }
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void Flush() { RAPIDJSON_ASSERT(false); }
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Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
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size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
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// Not implemented
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void Put(Ch) { RAPIDJSON_ASSERT(false); }
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void Flush() { RAPIDJSON_ASSERT(false); }
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Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
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size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
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private:
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// Detect encoding type with BOM or RFC 4627
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void DetectType() {
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// BOM (Byte Order Mark):
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// 00 00 FE FF UTF-32BE
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// FF FE 00 00 UTF-32LE
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// FE FF UTF-16BE
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// FF FE UTF-16LE
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// EF BB BF UTF-8
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AutoUTFInputStream(const AutoUTFInputStream&);
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AutoUTFInputStream& operator=(const AutoUTFInputStream&);
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const unsigned char* c = (const unsigned char *)is_->Peek4();
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if (!c)
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return;
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// Detect encoding type with BOM or RFC 4627
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void DetectType() {
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// BOM (Byte Order Mark):
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// 00 00 FE FF UTF-32BE
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// FF FE 00 00 UTF-32LE
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// FE FF UTF-16BE
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// FF FE UTF-16LE
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// EF BB BF UTF-8
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unsigned bom = c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24);
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hasBOM_ = false;
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if (bom == 0xFFFE0000) { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
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else if (bom == 0x0000FEFF) { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
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else if ((bom & 0xFFFF) == 0xFFFE) { type_ = kUTF16BE; hasBOM_ = true; is_->Take(); is_->Take(); }
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else if ((bom & 0xFFFF) == 0xFEFF) { type_ = kUTF16LE; hasBOM_ = true; is_->Take(); is_->Take(); }
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else if ((bom & 0xFFFFFF) == 0xBFBBEF) { type_ = kUTF8; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); }
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const unsigned char* c = reinterpret_cast<const unsigned char *>(is_->Peek4());
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if (!c)
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return;
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// RFC 4627: Section 3
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// "Since the first two characters of a JSON text will always be ASCII
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// characters [RFC0020], it is possible to determine whether an octet
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// stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking
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// at the pattern of nulls in the first four octets."
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// 00 00 00 xx UTF-32BE
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// 00 xx 00 xx UTF-16BE
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// xx 00 00 00 UTF-32LE
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// xx 00 xx 00 UTF-16LE
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// xx xx xx xx UTF-8
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unsigned bom = static_cast<unsigned>(c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24));
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hasBOM_ = false;
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if (bom == 0xFFFE0000) { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
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else if (bom == 0x0000FEFF) { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
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else if ((bom & 0xFFFF) == 0xFFFE) { type_ = kUTF16BE; hasBOM_ = true; is_->Take(); is_->Take(); }
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else if ((bom & 0xFFFF) == 0xFEFF) { type_ = kUTF16LE; hasBOM_ = true; is_->Take(); is_->Take(); }
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else if ((bom & 0xFFFFFF) == 0xBFBBEF) { type_ = kUTF8; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); }
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if (!hasBOM_) {
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unsigned pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
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switch (pattern) {
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case 0x08: type_ = kUTF32BE; break;
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case 0x0A: type_ = kUTF16BE; break;
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case 0x01: type_ = kUTF32LE; break;
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case 0x05: type_ = kUTF16LE; break;
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case 0x0F: type_ = kUTF8; break;
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}
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}
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// RFC 4627: Section 3
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// "Since the first two characters of a JSON text will always be ASCII
|
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// characters [RFC0020], it is possible to determine whether an octet
|
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// stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking
|
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// at the pattern of nulls in the first four octets."
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// 00 00 00 xx UTF-32BE
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// 00 xx 00 xx UTF-16BE
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// xx 00 00 00 UTF-32LE
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// xx 00 xx 00 UTF-16LE
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// xx xx xx xx UTF-8
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// RUntime check whether the size of character type is sufficient. It only perform checks with assertion.
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switch (type_) {
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case kUTF8:
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// Do nothing
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break;
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case kUTF16LE:
|
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case kUTF16BE:
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RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
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break;
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case kUTF32LE:
|
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case kUTF32BE:
|
||||
RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
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break;
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||||
}
|
||||
}
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||||
if (!hasBOM_) {
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int pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
|
||||
switch (pattern) {
|
||||
case 0x08: type_ = kUTF32BE; break;
|
||||
case 0x0A: type_ = kUTF16BE; break;
|
||||
case 0x01: type_ = kUTF32LE; break;
|
||||
case 0x05: type_ = kUTF16LE; break;
|
||||
case 0x0F: type_ = kUTF8; break;
|
||||
default: break; // Use type defined by user.
|
||||
}
|
||||
}
|
||||
|
||||
typedef Ch (*TakeFunc)(InputByteStream& is);
|
||||
InputByteStream* is_;
|
||||
UTFType type_;
|
||||
Ch current_;
|
||||
TakeFunc takeFunc_;
|
||||
bool hasBOM_;
|
||||
// Runtime check whether the size of character type is sufficient. It only perform checks with assertion.
|
||||
if (type_ == kUTF16LE || type_ == kUTF16BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
|
||||
if (type_ == kUTF32LE || type_ == kUTF32BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
|
||||
}
|
||||
|
||||
typedef Ch (*TakeFunc)(InputByteStream& is);
|
||||
InputByteStream* is_;
|
||||
UTFType type_;
|
||||
Ch current_;
|
||||
TakeFunc takeFunc_;
|
||||
bool hasBOM_;
|
||||
};
|
||||
|
||||
//! Output stream wrapper with dynamically bound encoding and automatic encoding detection.
|
||||
/*!
|
||||
\tparam CharType Type of character for writing.
|
||||
\tparam InputByteStream type of output byte stream to be wrapped.
|
||||
\tparam CharType Type of character for writing.
|
||||
\tparam OutputByteStream type of output byte stream to be wrapped.
|
||||
*/
|
||||
template <typename CharType, typename OutputByteStream>
|
||||
class AutoUTFOutputStream {
|
||||
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
|
||||
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
|
||||
public:
|
||||
typedef CharType Ch;
|
||||
typedef CharType Ch;
|
||||
|
||||
//! Constructor.
|
||||
/*!
|
||||
\param os output stream to be wrapped.
|
||||
\param type UTF encoding type.
|
||||
\param putBOM Whether to write BOM at the beginning of the stream.
|
||||
*/
|
||||
AutoUTFOutputStream(OutputByteStream& os, UTFType type, bool putBOM) : os_(&os), type_(type) {
|
||||
// RUntime check whether the size of character type is sufficient. It only perform checks with assertion.
|
||||
switch (type_) {
|
||||
case kUTF16LE:
|
||||
case kUTF16BE:
|
||||
RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
|
||||
break;
|
||||
case kUTF32LE:
|
||||
case kUTF32BE:
|
||||
RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
|
||||
break;
|
||||
case kUTF8:
|
||||
// Do nothing
|
||||
break;
|
||||
}
|
||||
//! Constructor.
|
||||
/*!
|
||||
\param os output stream to be wrapped.
|
||||
\param type UTF encoding type.
|
||||
\param putBOM Whether to write BOM at the beginning of the stream.
|
||||
*/
|
||||
AutoUTFOutputStream(OutputByteStream& os, UTFType type, bool putBOM) : os_(&os), type_(type) {
|
||||
RAPIDJSON_ASSERT(type >= kUTF8 && type <= kUTF32BE);
|
||||
|
||||
static const PutFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Put) };
|
||||
putFunc_ = f[type_];
|
||||
// Runtime check whether the size of character type is sufficient. It only perform checks with assertion.
|
||||
if (type_ == kUTF16LE || type_ == kUTF16BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
|
||||
if (type_ == kUTF32LE || type_ == kUTF32BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
|
||||
|
||||
if (putBOM)
|
||||
PutBOM();
|
||||
}
|
||||
static const PutFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Put) };
|
||||
putFunc_ = f[type_];
|
||||
|
||||
UTFType GetType() const { return type_; }
|
||||
if (putBOM)
|
||||
PutBOM();
|
||||
}
|
||||
|
||||
void Put(Ch c) { putFunc_(*os_, c); }
|
||||
void Flush() { os_->Flush(); }
|
||||
UTFType GetType() const { return type_; }
|
||||
|
||||
// Not implemented
|
||||
Ch Peek() const { RAPIDJSON_ASSERT(false); }
|
||||
Ch Take() { RAPIDJSON_ASSERT(false); }
|
||||
size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
|
||||
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
|
||||
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
|
||||
void Put(Ch c) { putFunc_(*os_, c); }
|
||||
void Flush() { os_->Flush(); }
|
||||
|
||||
// Not implemented
|
||||
Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;}
|
||||
Ch Take() { RAPIDJSON_ASSERT(false); return 0;}
|
||||
size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
|
||||
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
|
||||
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
|
||||
|
||||
private:
|
||||
void PutBOM() {
|
||||
typedef void (*PutBOMFunc)(OutputByteStream&);
|
||||
static const PutBOMFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(PutBOM) };
|
||||
f[type_](*os_);
|
||||
}
|
||||
AutoUTFOutputStream(const AutoUTFOutputStream&);
|
||||
AutoUTFOutputStream& operator=(const AutoUTFOutputStream&);
|
||||
|
||||
typedef void (*PutFunc)(OutputByteStream&, Ch);
|
||||
void PutBOM() {
|
||||
typedef void (*PutBOMFunc)(OutputByteStream&);
|
||||
static const PutBOMFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(PutBOM) };
|
||||
f[type_](*os_);
|
||||
}
|
||||
|
||||
OutputByteStream* os_;
|
||||
UTFType type_;
|
||||
PutFunc putFunc_;
|
||||
typedef void (*PutFunc)(OutputByteStream&, Ch);
|
||||
|
||||
OutputByteStream* os_;
|
||||
UTFType type_;
|
||||
PutFunc putFunc_;
|
||||
};
|
||||
|
||||
#undef RAPIDJSON_ENCODINGS_FUNC
|
||||
|
||||
} // namespace rapidjson
|
||||
RAPIDJSON_NAMESPACE_END
|
||||
|
||||
#ifdef __clang__
|
||||
RAPIDJSON_DIAG_POP
|
||||
#endif
|
||||
|
||||
#ifdef __GNUC__
|
||||
RAPIDJSON_DIAG_POP
|
||||
#endif
|
||||
|
||||
#endif // RAPIDJSON_FILESTREAM_H_
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue