using System;
using System.IO;
using System.Text;

namespace Filter
{
	internal class BinaryReaderEx : BinaryReader
	{
		private const int BufferLength = 256;

		private static byte[] Buffer;

		public long Length
		{
			get
			{
				return this.BaseStream.Length;
			}
		}

		static BinaryReaderEx()
		{
			BinaryReaderEx.Buffer = new byte[256];
		}

		public BinaryReaderEx(Stream input) : base(input)
		{
		}

		private string _ReadString(uint bytes)
		{
			string empty = string.Empty;
			if (bytes > 256)
			{
				empty = this.ReadString(bytes - 256);
			}
			this.Read(BinaryReaderEx.Buffer, 0, (int)bytes);
			Encoding encoding = Encoding.GetEncoding("ISO-8859-1");
			string str = encoding.GetString(BinaryReaderEx.Buffer, 0, (int)bytes);
			return string.Concat(empty, str);
		}

		public override string ReadString()
		{
			int num = 0;
			for (byte i = this.ReadByte(); i != 0; i = this.ReadByte())
			{
				int num1 = num;
				num = num1 + 1;
				BinaryReaderEx.Buffer[num1] = i;
				if (num >= 256)
				{
					break;
				}
			}
			string str = Encoding.GetEncoding("ISO-8859-1").GetString(BinaryReaderEx.Buffer, 0, num);
			if (num == 256)
			{
				str = string.Concat(str, this.ReadString());
			}
			return str;
		}

		public string ReadString(int bytes)
		{
			if (bytes <= 0)
			{
				return string.Empty;
			}
			return this.ReadString((uint)bytes);
		}

		public string ReadString(uint bytes)
		{
			return this._ReadString(bytes).TrimEnd(new char[1]);
		}
	}
}