New: Improved parsing of poorly named multi-episode anime-like releases

Closes #3259

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

@@ -131,6 +131,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("[HorribleSubs] Haikyuu!! (01-25) [1080p] (Batch)", "Haikyuu!!", new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 })]
         [TestCase("Hunter X Hunter (2011) Episode 99-100 [1080p] [Dual.Audio] [x265]", "Hunter X Hunter (2011)", new[] { 99, 100 })]
         [TestCase("Twin Star Exorcists 1-13 (English Dub) [720p]", "Twin Star Exorcists", new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 })]
+        [TestCase("Series.Title.Ep01-12.Complete.English.AC3.DL.1080p.BluRay.x264", "Series Title", new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 })]
 //        [TestCase("", "", new[] { 0 })]
         public void should_parse_multi_episode_absolute_numbers(string postTitle, string title, int[] absoluteEpisodeNumbers)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -250,6 +250,10 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?:(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))(?:-(?<episode>\d{2,3}(?!\d+))))",
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                //Anime Range - Title Absolute Episode Number (ep01-12)
+                new Regex(@"^(?:\[(?<subgroup>.+?)\][-_. ]?)?(?<title>.+?)(?:_|\s|\.)+(?:e|ep)(?<absoluteepisode>\d{2,3}(\.\d{1,2})?)-(?<absoluteepisode>(?<!\d+)\d{1,2}(\.\d{1,2})?(?!\d+|-)).*?(?<hash>\[\w{8}\])?(?:$|\.)",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 //Anime - Title Absolute Episode Number (e66)
                 new Regex(@"^(?:\[(?<subgroup>.+?)\][-_. ]?)?(?<title>.+?)(?:(?:_|-|\s|\.)+(?:e|ep)(?<absoluteepisode>\d{2,3}(\.\d{1,2})?))+.*?(?<hash>\[\w{8}\])?(?:$|\.)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),