ClassLibraryWeiBao/json引擎2/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.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;