Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CS/7zip/Compress/RangeCoder/RangeCoder.cs

Index: third_party/lzma/v4_65/files/CS/7zip/Compress/RangeCoder/RangeCoder.cs
diff --git a/third_party/lzma/v4_65/files/CS/7zip/Compress/RangeCoder/RangeCoder.cs b/third_party/lzma/v4_65/files/CS/7zip/Compress/RangeCoder/RangeCoder.cs
deleted file mode 100644
index 949c6bbe662dedfb054c61c7c0d787c8f0abcd38..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CS/7zip/Compress/RangeCoder/RangeCoder.cs
+++ /dev/null
@@ -1,234 +0,0 @@
-using System;
-
-namespace SevenZip.Compression.RangeCoder
-{
-	class Encoder
-	{
-		public const uint kTopValue = (1 << 24);
-
-		System.IO.Stream Stream;
-
-		public UInt64 Low;
-		public uint Range;
-		uint _cacheSize;
-		byte _cache;
-
-		long StartPosition;
-
-		public void SetStream(System.IO.Stream stream)
-		{
-			Stream = stream;
-		}
-
-		public void ReleaseStream()
-		{
-			Stream = null;
-		}
-
-		public void Init()
-		{
-			StartPosition = Stream.Position;
-
-			Low = 0;
-			Range = 0xFFFFFFFF;
-			_cacheSize = 1;
-			_cache = 0;
-		}
-
-		public void FlushData()
-		{
-			for (int i = 0; i < 5; i++)
-				ShiftLow();
-		}
-
-		public void FlushStream()
-		{
-			Stream.Flush();
-		}
-
-		public void CloseStream()
-		{
-			Stream.Close();
-		}
-
-		public void Encode(uint start, uint size, uint total)
-		{
-			Low += start * (Range /= total);
-			Range *= size;
-			while (Range < kTopValue)
-			{
-				Range <<= 8;
-				ShiftLow();
-			}
-		}
-
-		public void ShiftLow()
-		{
-			if ((uint)Low < (uint)0xFF000000 || (uint)(Low >> 32) == 1)
-			{
-				byte temp = _cache;
-				do
-				{
-					Stream.WriteByte((byte)(temp + (Low >> 32)));
-					temp = 0xFF;
-				}
-				while (--_cacheSize != 0);
-				_cache = (byte)(((uint)Low) >> 24);
-			}
-			_cacheSize++;
-			Low = ((uint)Low) << 8;
-		}
-
-		public void EncodeDirectBits(uint v, int numTotalBits)
-		{
-			for (int i = numTotalBits - 1; i >= 0; i--)
-			{
-				Range >>= 1;
-				if (((v >> i) & 1) == 1)
-					Low += Range;
-				if (Range < kTopValue)
-				{
-					Range <<= 8;
-					ShiftLow();
-				}
-			}
-		}
-
-		public void EncodeBit(uint size0, int numTotalBits, uint symbol)
-		{
-			uint newBound = (Range >> numTotalBits) * size0;
-			if (symbol == 0)
-				Range = newBound;
-			else
-			{
-				Low += newBound;
-				Range -= newBound;
-			}
-			while (Range < kTopValue)
-			{
-				Range <<= 8;
-				ShiftLow();
-			}
-		}
-
-		public long GetProcessedSizeAdd()
-		{
-			return _cacheSize +
-				Stream.Position - StartPosition + 4;
-			// (long)Stream.GetProcessedSize();
-		}
-	}
-
-	class Decoder
-	{
-		public const uint kTopValue = (1 << 24);
-		public uint Range;
-		public uint Code;
-		// public Buffer.InBuffer Stream = new Buffer.InBuffer(1 << 16);
-		public System.IO.Stream Stream;
-
-		public void Init(System.IO.Stream stream)
-		{
-			// Stream.Init(stream);
-			Stream = stream;
-
-			Code = 0;
-			Range = 0xFFFFFFFF;
-			for (int i = 0; i < 5; i++)
-				Code = (Code << 8) | (byte)Stream.ReadByte();
-		}
-
-		public void ReleaseStream()
-		{
-			// Stream.ReleaseStream();
-			Stream = null;
-		}
-
-		public void CloseStream()
-		{
-			Stream.Close();
-		}
-
-		public void Normalize()
-		{
-			while (Range < kTopValue)
-			{
-				Code = (Code << 8) | (byte)Stream.ReadByte();
-				Range <<= 8;
-			}
-		}
-
-		public void Normalize2()
-		{
-			if (Range < kTopValue)
-			{
-				Code = (Code << 8) | (byte)Stream.ReadByte();
-				Range <<= 8;
-			}
-		}
-
-		public uint GetThreshold(uint total)
-		{
-			return Code / (Range /= total);
-		}
-
-		public void Decode(uint start, uint size, uint total)
-		{
-			Code -= start * Range;
-			Range *= size;
-			Normalize();
-		}
-
-		public uint DecodeDirectBits(int numTotalBits)
-		{
-			uint range = Range;
-			uint code = Code;
-			uint result = 0;
-			for (int i = numTotalBits; i > 0; i--)
-			{
-				range >>= 1;
-				/*
-				result <<= 1;
-				if (code >= range)
-				{
-					code -= range;
-					result |= 1;
-				}
-				*/
-				uint t = (code - range) >> 31;
-				code -= range & (t - 1);
-				result = (result << 1) | (1 - t);
-
-				if (range < kTopValue)
-				{
-					code = (code << 8) | (byte)Stream.ReadByte();
-					range <<= 8;
-				}
-			}
-			Range = range;
-			Code = code;
-			return result;
-		}
-
-		public uint DecodeBit(uint size0, int numTotalBits)
-		{
-			uint newBound = (Range >> numTotalBits) * size0;
-			uint symbol;
-			if (Code < newBound)
-			{
-				symbol = 0;
-				Range = newBound;
-			}
-			else
-			{
-				symbol = 1;
-				Code -= newBound;
-				Range -= newBound;
-			}
-			Normalize();
-			return symbol;
-		}
-
-		// ulong GetProcessedSize() {return Stream.GetProcessedSize(); }
-	}
-}