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authorRiccardo Spagni <ric@spagni.net>2014-12-01 21:15:50 +0200
committerRiccardo Spagni <ric@spagni.net>2014-12-01 21:15:50 +0200
commitaffde29754c2e2309bec3394c4271c56e3bce18e (patch)
tree36f5f1191cb2ee7a18e7411880c09894709864fa /external/rapidjson/memorystream.h
parentMerge pull request #1 (diff)
downloadmonero-affde29754c2e2309bec3394c4271c56e3bce18e.tar.xz
moved rapidjson to external folder, fixed CMake
Diffstat (limited to 'external/rapidjson/memorystream.h')
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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_