[unity] Updated editors.

spine-csharp/src/SkeletonBinary.cs

@@ -110,6 +110,30 @@ namespace Spine {
 			TransformMode.NoScaleOrReflection
 		};
 
+		/// <summary>Returns the version string of binary skeleton data.</summary>
+		public static string GetVersionString (Stream input) {
+			if (input == null) throw new ArgumentNullException("input");
+
+			try {
+				// Hash.
+				int byteCount = ReadVarint(input, true);
+				if (byteCount > 1) input.Position += byteCount - 1;
+
+				// Version.
+				byteCount = ReadVarint(input, true);
+				if (byteCount > 1) {
+					byteCount--;
+					var buffer = new byte[byteCount];
+					ReadFully(input, buffer, 0, byteCount);
+					return System.Text.Encoding.UTF8.GetString(buffer, 0, byteCount);
+				}
+
+				throw new ArgumentException("Stream does not contain a valid binary Skeleton Data.", "input");
+			} catch (Exception e) {
+				throw new ArgumentException("Stream does not contain a valid binary Skeleton Data.\n" + e, "input");
+			}
+		}
+
 		public SkeletonData ReadSkeletonData (Stream input) {
 			if (input == null) throw new ArgumentNullException("input");
 			float scale = Scale;

spine-unity/Assets/spine-unity/Editor/SpineEditorUtilities.cs

@@ -1461,25 +1461,6 @@ namespace Spine.Unity.Editor {
 		public static string GetPathSafeRegionName (AtlasRegion region) {
 			return region.name.Replace("/", "_");
 		}
-
-		internal static int ReadVarint (Stream input, bool optimizePositive) {
-			int b = input.ReadByte();
-			int result = b & 0x7F;
-			if ((b & 0x80) != 0) {
-				b = input.ReadByte();
-				result |= (b & 0x7F) << 7;
-				if ((b & 0x80) != 0) {
-					b = input.ReadByte();
-					result |= (b & 0x7F) << 14;
-					if ((b & 0x80) != 0) {
-						b = input.ReadByte();
-						result |= (b & 0x7F) << 21;
-						if ((b & 0x80) != 0) result |= (input.ReadByte() & 0x7F) << 28;
-					}
-				}
-			}
-			return optimizePositive ? result : ((result >> 1) ^ -(result & 1));
-		}
 	}
 
 	public static class SpineHandles {