Fixed: Parse extended multi episode with 4 digit (year) seasons

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

@@ -1,12 +1,7 @@
-using System;
-using System.Linq;
 using FluentAssertions;
 using NUnit.Framework;
-using NzbDrone.Common.Expansive;
 using NzbDrone.Core.Parser;
 using NzbDrone.Core.Test.Framework;
-using NzbDrone.Core.Tv;
-using NzbDrone.Test.Common;
 
 namespace NzbDrone.Core.Test.ParserTests
 {
@@ -41,6 +36,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("extant.10708.hdtv-lol.mp4", "Extant", 1, new[] { 7, 8 })]
         [TestCase("extant.10910.hdtv-lol.mp4", "Extant", 1, new[] { 9, 10 })]
         [TestCase("E.010910.HDTVx264REPACKLOL.mp4", "E", 1, new[] { 9, 10 })]
+        [TestCase("World Series of Poker - 2013x15 - 2013x16 - HD TV.mkv", "World Series of Poker", 2013, new[] { 15, 16 })]
         //[TestCase("Adventure Time - 5x01 - x02 - Finn the Human (2) & Jake the Dog (3)", "Adventure Time", 5, new [] { 1, 2 })]
         public void should_parse_multiple_episodes(string postTitle, string title, int season, int[] episodes)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -39,11 +39,11 @@ namespace NzbDrone.Core.Parser
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Multi-Part episodes without a title (S01E05.S01E06)
-                new Regex(@"^(?:\W*S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
+                new Regex(@"^(?:\W*S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Multi-episode Repeated (S01E05 - S01E06, 1x05 - 1x06, etc)
-                new Regex(@"^(?<title>.+?)(?:(\W|_)+S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
+                new Regex(@"^(?<title>.+?)(?:(\W|_)+S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Episodes without a title, Single (S01E05, 1x05) AND Multi (S01E04E05, 1x04x05, etc)