Tweaked parser to handle S01.Ep01.

closes #1849

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

@@ -128,6 +128,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Jeopardy - S2016E231", "Jeopardy", 2016, 231)]
         [TestCase("Jeopardy - 2016x231", "Jeopardy", 2016, 231)]
         [TestCase("Shortland.Street.S26E022.HDTV.x264-FiHTV", "Shortland Street", 26, 22)]
+        [TestCase("Super.Potatoes.S01.Ep06.1080p.BluRay.DTS.x264-MiR", "Super Potatoes", 1, 6)]
         //[TestCase("", "", 0, 0)]
         public void should_parse_single_episode(string postTitle, string title, int seasonNumber, int episodeNumber)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -122,8 +122,8 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)[-_. ]S(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:[-_. ]?[ex]?(?<episode>(?<!\d+)\d{1,2}(?!\d+)))+",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
-                //Single episode season or episode S1E1 or S1-E1
-                new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:\W?|_)S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?E(?<episode>(?<!\d+)\d{1,2}(?!\d+))",
+                //Single episode season or episode S1E1 or S1-E1 or S1.Ep1
+                new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:\W?|_)S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?Ep?(?<episode>(?<!\d+)\d{1,2}(?!\d+))",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //3 digit season S010E05