--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CS/7zip/ICoder.cs	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,145 @@
+// ICoder.h
+
+using System;
+
+namespace SevenZip
+{
+	/// <summary>
+	/// The exception that is thrown when an error in input stream occurs during decoding.
+	/// </summary>
+	class DataErrorException : ApplicationException
+	{
+		public DataErrorException(): base("Data Error") { }
+	}
+
+	/// <summary>
+	/// The exception that is thrown when the value of an argument is outside the allowable range.
+	/// </summary>
+	class InvalidParamException : ApplicationException
+	{
+		public InvalidParamException(): base("Invalid Parameter") { }
+	}
+
+	public interface ICodeProgress
+	{
+		/// <summary>
+		/// Callback progress.
+		/// </summary>
+		/// <param name="inSize">
+		/// input size. -1 if unknown.
+		/// </param>
+		/// <param name="outSize">
+		/// output size. -1 if unknown.
+		/// </param>
+		void SetProgress(Int64 inSize, Int64 outSize);
+	};
+
+	public interface ICoder
+	{
+		/// <summary>
+		/// Codes streams.
+		/// </summary>
+		/// <param name="inStream">
+		/// input Stream.
+		/// </param>
+		/// <param name="outStream">
+		/// output Stream.
+		/// </param>
+		/// <param name="inSize">
+		/// input Size. -1 if unknown.
+		/// </param>
+		/// <param name="outSize">
+		/// output Size. -1 if unknown.
+		/// </param>
+		/// <param name="progress">
+		/// callback progress reference.
+		/// </param>
+		/// <exception cref="SevenZip.DataErrorException">
+		/// if input stream is not valid
+		/// </exception>
+		void Code(System.IO.Stream inStream, System.IO.Stream outStream,
+			Int64 inSize, Int64 outSize, ICodeProgress progress);
+	};
+
+	/*
+	public interface ICoder2
+	{
+		 void Code(ISequentialInStream []inStreams,
+				const UInt64 []inSizes, 
+				ISequentialOutStream []outStreams, 
+				UInt64 []outSizes,
+				ICodeProgress progress);
+	};
+  */
+
+	/// <summary>
+	/// Provides the fields that represent properties idenitifiers for compressing.
+	/// </summary>
+	public enum CoderPropID
+	{
+		/// <summary>
+		/// Specifies size of dictionary.
+		/// </summary>
+		DictionarySize = 0x400,
+		/// <summary>
+		/// Specifies size of memory for PPM*.
+		/// </summary>
+		UsedMemorySize,
+		/// <summary>
+		/// Specifies order for PPM methods.
+		/// </summary>
+		Order,
+		/// <summary>
+		/// Specifies number of postion state bits for LZMA (0 <= x <= 4).
+		/// </summary>
+		PosStateBits = 0x440,
+		/// <summary>
+		/// Specifies number of literal context bits for LZMA (0 <= x <= 8).
+		/// </summary>
+		LitContextBits,
+		/// <summary>
+		/// Specifies number of literal position bits for LZMA (0 <= x <= 4).
+		/// </summary>
+		LitPosBits,
+		/// <summary>
+		/// Specifies number of fast bytes for LZ*.
+		/// </summary>
+		NumFastBytes = 0x450,
+		/// <summary>
+		/// Specifies match finder. LZMA: "BT2", "BT4" or "BT4B".
+		/// </summary>
+		MatchFinder,
+		/// <summary>
+		/// Specifies number of passes.
+		/// </summary>
+		NumPasses = 0x460,
+		/// <summary>
+		/// Specifies number of algorithm.
+		/// </summary>
+		Algorithm = 0x470,
+		/// <summary>
+		/// Specifies multithread mode.
+		/// </summary>
+		MultiThread = 0x480,
+		/// <summary>
+		/// Specifies mode with end marker.
+		/// </summary>
+		EndMarker = 0x490
+	};
+
+
+	public interface ISetCoderProperties
+	{
+		void SetCoderProperties(CoderPropID[] propIDs, object[] properties);
+	};
+
+	public interface IWriteCoderProperties
+	{
+		void WriteCoderProperties(System.IO.Stream outStream);
+	}
+
+	public interface ISetDecoderProperties
+	{
+		void SetDecoderProperties(byte[] properties);
+	}
+}