Improve parsing of standard titles with junk in []

Fixed: Improve parsing of standard series releases/files with square brackets at the end

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

@@ -132,6 +132,8 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Room 104 - S01E07 The Missionaries [SDTV]", "Room 104", 1, 7)]
         [TestCase("11-02 The Retraction Reaction (HD).m4v", "", 11, 2)]
         [TestCase("Plus belle la vie - S14E3533 FRENCH WEBRIP H.264 AAC (09.05.2018)", "Plus belle la vie", 14, 3533)]
+        [TestCase("The 100 - S01E02 - Earth Skills HDTV-1080p AVC DTS [EN+FR+ES+PT+DA+FI+NB+SV]", "The 100", 1, 2)]
+        [TestCase("Series Title - S01E01 - Day 100 [SDTV]", "Series Title", 1, 1)]
         //[TestCase("", "", 0, 0)]
         public void should_parse_single_episode(string postTitle, string title, int seasonNumber, int episodeNumber)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -62,10 +62,22 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^\[(?<subgroup>.+?)\][-_. ]?(?<title>.+?)[-_. ]+\(?(?:[-_. ]?#?(?<absoluteepisode>\d{2,3}(?!\d+)))+\)?(?:[-_. ]+(?<special>special|ova|ovd))?.*?(?<hash>\[\w{8}\])?(?:$|\.mkv)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                //Multi-episode Repeated (S01E05 - S01E06, 1x05 - 1x06, etc)
+                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:(?:[ex]|[-_. ]e){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
+                //Single episodes with a title (S01E05, 1x05, etc) and trailing info in slashes
+                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+|(?:[ex]|\W[ex]|_|-){1,2}\d+))).+?(?:\[.+?\])(?!\\)",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 //Anime - Title Season EpisodeNumber + Absolute Episode Number [SubGroup]
-                new Regex(@"^(?<title>.+?)(?:[-_\W](?<![()\[!]))+(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:[ex]|\W[ex]){1,2}(?<episode>(?<!\d+)\d{2}(?!\d+)))+).+?(?:[-_. ]?(?<absoluteepisode>(?<!\d+)\d{3}(?!\d+)))+.+?\[(?<subgroup>.+?)\](?:$|\.mkv)",
+                new Regex(@"^(?<title>.+?)(?:[-_\W](?<![()\[!]))+(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:[ex]|\W[ex]){1,2}(?<episode>(?<!\d+)\d{2}(?!\d+)))).+?(?:[-_. ]?(?<absoluteepisode>(?<!\d+)\d{3}(?!\d+)))+.+?\[(?<subgroup>.+?)\](?:$|\.mkv)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                //Multi-Episode with a title (S01E05E06, S01E05-06, S01E05 E06, etc) and trailing info in slashes
+                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))+).+?(?:\[.+?\])(?!\\)",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 //Anime - Title Absolute Episode Number [SubGroup]
                 new Regex(@"^(?<title>.+?)(?:(?:_|-|\s|\.)+(?<absoluteepisode>\d{3}(?!\d+)))+(?:.+?)\[(?<subgroup>.+?)\].*?(?<hash>\[\w{8}\])?(?:$|\.)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
@@ -82,10 +94,6 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)?\W*(?<airyear>\d{4})\W+(?<airmonth>[0-1][0-9])\W+(?<airday>[0-3][0-9])(?!\W+[0-3][0-9]).+?(?:s?(?<season>(?<!\d+)(?:\d{1,2})(?!\d+)))(?:[ex](?<episode>(?<!\d+)(?:\d{1,3})(?!\d+)))",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
-                //Multi-episode Repeated (S01E05 - S01E06, 1x05 - 1x06, etc)
-                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:(?:[ex]|[-_. ]e){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
-                          RegexOptions.IgnoreCase | RegexOptions.Compiled),
-
                 //Episodes with a title, Single episodes (S01E05, 1x05, etc) & Multi-episode (S01E05E06, S01E05-06, S01E05 E06, etc)
                 new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))*)\W?(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),