Fixed: Parsing multi-episode in square bracket

Fixes Sonarr#2669

Author: markus101

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

@@ -61,6 +61,7 @@ public class MultiEpisodeParserFixture : CoreTest
         [TestCase("1x01-x03 - Episode Title.HDTV-720p", "", 1, new [] { 1, 2, 3 })]
         [TestCase("Are.You.Human.Too.E07-E08.180612.1080p-NEXT", "Are You Human Too", 1, new[] { 7, 8 })]
         [TestCase("Are You Human Too? E11-E12 1080p HDTV AAC H.264-NEXT", "Are You Human Too", 1, new[] { 11, 12 })]
+        [TestCase("The Series Title (2010) - [S01E01-02-03] - Episode Title", "The Series Title (2010)", 1, new [] { 1, 2, 3 })]
         //[TestCase("", "", , new [] {  })]
         public void should_parse_multiple_episodes(string postTitle, string title, int season, int[] episodes)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -134,8 +134,12 @@ public static class Parser
                 new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:[-_\W](?<![()\[]))+(?:\W?Season\W?)(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)+(?:Episode\W)(?:[-_. ]?(?<episode>(?<!\d+)\d{1,2}(?!\d+)))+",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                // Multi-episode with episodes in square brackets (Series Title [S01E11E12] or Series Title [S01E11-12])
+                new Regex(@"(?:.*(?:^))(?<title>.*?)[-._ ]+\[S(?<season>(?<!\d+)\d{2}(?!\d+))(?:[E-]{1,2}(?<episode>(?<!\d+)\d{2}(?!\d+)))+\]",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 //Multi-episode release with no space between series title and season (S01E11E12)
-                new Regex(@"(?:.*(?:^))(?<title>.*?)(?:\W?|_)S(?<season>(?<!\d+)\d{2}(?!\d+))(?:E(?<episode>(?<!\d+)\d{2}(?!\d+)))+",
+                new Regex(@"(?:.*(?:^))(?<title>.*?)S(?<season>(?<!\d+)\d{2}(?!\d+))(?:E(?<episode>(?<!\d+)\d{2}(?!\d+)))+",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Multi-episode with single episode numbers (S6.E1-E2, S6.E1E2, S6E1E2, etc)