Fixed: Improve parsing of anime file names without standard release group/hash

Closes #3117

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

@@ -95,6 +95,10 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("To Aru Majutsu no Index III - Episode 5 VOSTFR (1080p)", "To Aru Majutsu no Index III", 5, 0, 0)]
         [TestCase("[Prout] Steins;Gate 0 - Episode 5 VOSTFR (BDRip 1920x1080 x264 FLAC)", "Steins;Gate 0", 5, 0, 0)]
         [TestCase("[BakedFish] Nakanohito Genome [Jikkyouchuu] - 01 [720p][AAC].mp4", "Nakanohito Genome [Jikkyouchuu]", 1, 0, 0)]
+        [TestCase("Abc x Abc (2011) - 141 - Magician [KaiDubs] [1080p]", "Abc x Abc (2011)", 141, 0, 0)]
+        [TestCase("Abc Abc 484 VOSTFR par Abc-Abc (1280*720) - version MQ", "Abc Abc", 484, 0, 0)]
+        [TestCase("Abc - Abc Abc Abc - 107 VOSTFR par Fansub-Miracle Sharingan (1920x1080) - HQ_Draft", "Abc - Abc Abc Abc", 107, 0, 0)]
+        [TestCase("Abc Abc Abc Abc Episode 10 VOSTFR (1920x1080) Miracle Sharingan Fansub.MKV - Team - (À suivre)", "Abc Abc Abc Abc", 10, 0, 0)]
         //[TestCase("", "", 0, 0, 0)]
         public void should_parse_absolute_numbers(string postTitle, string title, int absoluteEpisodeNumber, int seasonNumber, int episodeNumber)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -213,7 +213,7 @@ namespace NzbDrone.Core.Parser
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Supports 103/113 naming
-                new Regex(@"^(?<title>.+?)?(?:(?:[-_\W](?<![()\[!]))+(?<season>(?<!\d+)[1-9])(?<episode>[1-9][0-9]|[0][1-9])(?![a-z]|\d+))+",
+                new Regex(@"^(?<title>.+?)?(?:(?:[_.](?<![()\[!]))+(?<season>(?<!\d+)[1-9])(?<episode>[1-9][0-9]|[0][1-9])(?![a-z]|\d+))+(?:[_.]|$)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //4 digit episode number