Fixed: Parsing of season and episode inside square brackets

Closes: #501

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

@@ -107,6 +107,8 @@ namespace NzbDrone.Core.Test.ParserTests
         //[TestCase("The 100 S02E01 HDTV x264-KILLERS [eztv]", "The 100", 2, 1)]
         [TestCase("The Young And The Restless - S41 E10478 - 2014-08-15", "The Young and The Restless", 41, 10478)]
         [TestCase("The Young And The Restless - S42 E10591 - 2015-01-27", "The Young and The Restless", 42, 10591)]
+        [TestCase("Series Title [1x05] Episode Title", "Series Title", 1, 5)]
+        [TestCase("Series Title [S01E05] Episode Title", "Series Title", 1, 5)]
         //[TestCase("", "", 0, 0)]
         public void should_parse_single_episode(string postTitle, string title, int seasonNumber, int episodeNumber)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -111,6 +111,10 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)(?:(\W|_)+S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{4}(?!\d+|i|p)))+)\W?(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                //Episodes with a title and season/episode in square brackets
+                new Regex(@"^(?<title>.+?)(?:(\W|_)+\[S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>(?<!\d+)\d{2}(?!\d+|i|p)))+\])\W?(?!\\)",
+                          RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 //Episodes with single digit episode number (S01E1, S01E5E6, etc)
                 new Regex(@"^(?<title>.*?)(?:(?:_|-|\s|\.)S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]){1,2}(?<episode>\d{1}))+)+(\W+|_|$)(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),