Fixed: Additional reverse title parser patterns.

fixes #2943

src/NzbDrone.Core.Test/ParserTests/HashedReleaseFixture.cs

@@ -94,6 +94,20 @@ namespace NzbDrone.Core.Test.ParserTests
                 "Sons of Anarchy",
                 Quality.HDTV720p,
                 null
+            },
+            new object[]
+            {
+                @"50E50S.denorD.mkv".AsOsAgnostic(),
+                "Droned",
+                Quality.HDTV720p,
+                null
+            },
+            new object[]
+            {
+                @"C:\Test\XxQVHK4GJMP3n2dLpmhW\XxQVHK4GJMP3n2dLpmhW\50E50S.denorD.mkv".AsOsAgnostic(),
+                "Droned",
+                Quality.HDTV720p,
+                null
             }
         };
 

src/NzbDrone.Core/Parser/Parser.cs

@@ -299,7 +299,7 @@ namespace NzbDrone.Core.Parser
             };
 
         //Regex to detect whether the title was reversed.
-        private static readonly Regex ReversedTitleRegex = new Regex(@"[-._ ](p027|p0801|\d{2,3}E\d{2}S)[-._ ]", RegexOptions.Compiled);
+        private static readonly Regex ReversedTitleRegex = new Regex(@"(?:^|[-._ ])(p027|p0801|\d{2,3}E\d{2}S)[-._ ]", RegexOptions.Compiled);
 
         private static readonly Regex NormalizeRegex = new Regex(@"((?:\b|_)(?<!^)(a(?!$)|an|the|and|or|of)(?:\b|_))|\W|_",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);