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-// Copyright (C) 2011 Milo Yip
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-#ifndef RAPIDJSON_MEMORYSTREAM_H_
-#define RAPIDJSON_MEMORYSTREAM_H_
-
-#include "rapidjson.h"
-
-namespace rapidjson {
-
-//! Represents an in-memory input byte stream.
-/*!
- This class is mainly for being wrapped by EncodedInputStream or AutoUTFInputStream.
-
- It is similar to FileReadBuffer but the source is an in-memory buffer instead of a file.
-
- Differences between MemoryStream and StringStream:
- 1. StringStream has encoding but MemoryStream is a byte stream.
- 2. MemoryStream needs size of the source buffer and the buffer don't need to be null terminated. StringStream assume null-terminated string as source.
- 3. MemoryStream supports Peek4() for encoding detection. StringStream is specified with an encoding so it should not have Peek4().
- \note implements Stream concept
-*/
-struct MemoryStream {
- typedef char Ch; // byte
-
- MemoryStream(const Ch *src, size_t size) : src_(src), begin_(src), end_(src + size), size_(size) {}
-
- Ch Peek() const { return *src_; }
- Ch Take() { return (src_ == end_) ? '\0' : *src_++; }
- size_t Tell() const { return static_cast<size_t>(src_ - begin_); }
-
- Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
- void Put(Ch) { RAPIDJSON_ASSERT(false); }
- void Flush() { RAPIDJSON_ASSERT(false); }
- size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
- // For encoding detection only.
- const Ch* Peek4() const {
- return Tell() + 4 <= size_ ? src_ : 0;
- }
-
- const Ch* src_; //!< Current read position.
- const Ch* begin_; //!< Original head of the string.
- const Ch* end_; //!< End of stream.
- size_t size_; //!< Size of the stream.
-};
-
-} // namespace rapidjson
-
-#endif // RAPIDJSON_MEMORYBUFFER_H_