Newtonsoft.Json/Bson/BsonReader.cs

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#region License
// Copyright (c) 2007 James Newton-King
//
// 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.
#endregion

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.IO;
using Newtonsoft.Json.Serialization;
using Newtonsoft.Json.Utilities;
using Newtonsoft.Json.Linq;

namespace Newtonsoft.Json.Bson
{
    /// <summary>
    /// Represents a reader that provides fast, non-cached, forward-only access to serialized Json data.
    /// </summary>
    public class BsonReader : JsonReader
    {
        private const int MaxCharBytesSize = 128;
        private static readonly byte[] SeqRange1 = new byte[] { 0, 127 }; // range of 1-byte sequence
        private static readonly byte[] SeqRange2 = new byte[] { 194, 223 }; // range of 2-byte sequence
        private static readonly byte[] SeqRange3 = new byte[] { 224, 239 }; // range of 3-byte sequence
        private static readonly byte[] SeqRange4 = new byte[] { 240, 244 }; // range of 4-byte sequence

        private readonly BinaryReader _reader;
        private readonly List<ContainerContext> _stack;

        private byte[] _byteBuffer;
        private char[] _charBuffer;

        private BsonType _currentElementType;
        private BsonReaderState _bsonReaderState;
        private ContainerContext _currentContext;

        private bool _readRootValueAsArray;
        private bool _jsonNet35BinaryCompatibility;
        private DateTimeKind _dateTimeKindHandling;