New: Parse absolute episode numbers within square brackets

Closes #6694

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

@@ -134,6 +134,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("[Naruto-Kun.Hu] Anime Triangle - 08 [1080p].mkv", "Anime Triangle", 8, 0, 0)]
         [TestCase("[Mystic Z-Team] Series Title Super - Episode 013 VF - Non-censuré [720p].mp4", "Series Title Super", 13, 0, 0)]
         [TestCase("Series Title Kai Episodio 13 Audio Latino", "Series Title Kai", 13, 0, 0)]
+        [TestCase("Series_Title_2_[01]_[AniLibria_TV]_[WEBRip_1080p]", "Series Title 2", 1, 0, 0)]
 
         // [TestCase("", "", 0, 0, 0)]
         public void should_parse_absolute_numbers(string postTitle, string title, int absoluteEpisodeNumber, int seasonNumber, int episodeNumber)
@@ -179,6 +180,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("[Erai-raws] Series-Title! 2 - 01~10 [1080p][Multiple Subtitle]", "Series-Title! 2", 1, 10)]
         [TestCase("[Erai-raws] Series Title! - 01 ~ 10 [1080p][Multiple Subtitle]", "Series Title!", 1, 10)]
         [TestCase("[Erai-raws] Series-Title! 2 - 01 ~ 10 [1080p][Multiple Subtitle]", "Series-Title! 2", 1, 10)]
+        [TestCase("Series_Title_2_[01-05]_[AniLibria_TV]_[WEBRip_1080p]", "Series Title 2", 1, 5)]
 
         // [TestCase("", "", 1, 2)]
         public void should_parse_multi_episode_absolute_numbers(string postTitle, string title, int firstAbsoluteEpisodeNumber, int lastAbsoluteEpisodeNumber)

src/NzbDrone.Core/Parser/Parser.cs

@@ -294,10 +294,10 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)(?:_|-|\s|\.)+S(?<season>\d{2}(?!\d+))(\W-\W)E(?<episode>(?<!\d+)\d{2}(?!\d+))(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
-                // Season and episode numbers in square brackets (single and mult-episode)
+                // Season and episode numbers in square brackets (single and multi-episode)
                 // Series Title - [02x01] - Episode 1
                 // Series Title - [02x01x02] - Episode 1
-                new Regex(@"^(?<title>.+?)?(?:[-_\W](?<![()\[!]))+\[(?<season>(?<!\d+)\d{1,2})(?:(?:-|x){1,2}(?<episode>\d{2}))+\].+?(?:\.|$)",
+                new Regex(@"^(?<title>.+?)?(?:[-_\W](?<![()\[!]))+\[(?:s)?(?<season>(?<!\d+)\d{1,2})(?:(?:[ex])(?<episode>\d{2}))(?:(?:[-ex]){1,2}(?<episode>\d{2}))*\].+?(?:\.|$)",
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 // Anime - Title with season number - Absolute Episode Number (Title S01 - EP14)
@@ -328,10 +328,6 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)[-_. ]+?(?:S|Season|Saison|Series|Stagione)[-_. ]?(?<season>\d{4}(?![-_. ]?\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
                           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),
-
                 // Supports 103/113 naming
                 new Regex(@"^(?<title>.+?)?(?:(?:[_.-](?<![()\[!]))+(?<season>(?<!\d+)[1-9])(?<episode>[1-9][0-9]|[0][1-9])(?![a-z]|\d+))+(?:[_.]|$)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
@@ -409,6 +405,10 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?:\[(?<subgroup>.+?)\][-_. ]?)?(?<title>.+?)[-_. ]+(?:Episode|Episodio)(?:[-_. ]+(?<absoluteepisode>(?<!\d+)\d{2,4}(\.\d{1,2})?(?!\d+|[ip])))+.*?(?<hash>[(\[]\w{8}[)\]])?$",
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                // Anime - Title [Absolute Episode Number] from AniLibriaTV
+                new Regex(@"^(?:\[(?<subgroup>.+?)\][-_. ]?)?(?<title>.+?)(?:[-_. ]\[)(?:(?:-?)(?<absoluteepisode>(?<!\d+)\d{2,3}(\.\d{1,2})?(?!\d+|[ip])))+(?:\][-_. ]).*?(?<hash>[(\[]\w{8}[)\]])?$",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 // Anime - Title Absolute Episode Number
                 new Regex(@"^(?:\[(?<subgroup>.+?)\][-_. ]?)?(?<title>.+?)(?:[-_. ]+(?<absoluteepisode>(?<!\d+)\d{2,4}(\.\d{1,2})?(?!\d+|[ip])))+.*?(?<hash>[(\[]\w{8}[)\]])?$",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),