New: Parsing for titles with multiple translated titles separated by '/'

Closes #6137

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

@@ -75,6 +75,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("13 Series Se.1 afl.2-3-4 [VTM]", "13 Series", 1, new[] { 2, 3, 4 })]
         [TestCase("Series T Se.3 afl.3 en 4", "Series T", 3, new[] { 3, 4 })]
         [TestCase("Series Title (S15E06-08) City Sushi", "Series Title", 15, new[] { 6, 7, 8 })]
+        [TestCase("Босх: Спадок (S2E1-4) / Series: Legacy (S2E1-4) (2023) WEB-DL 1080p Ukr/Eng | sub Eng", "Series: Legacy", 2, new[] { 1, 2, 3, 4 })]
 
         // [TestCase("", "", , new [] {  })]
         public void should_parse_multiple_episodes(string postTitle, string title, int season, int[] episodes)

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

@@ -92,5 +92,12 @@ namespace NzbDrone.Core.Test.ParserTests
             var result = Parser.Parser.ParseTitle(path);
             result.ReleaseTitle.Should().Be(releaseTitle);
         }
+
+        [TestCase("Босх: Спадок (S2E1) / Series: Legacy (S2E1) (2023) WEB-DL 1080p Ukr/Eng | sub Eng", "Босх: Спадок", "Series: Legacy")]
+        public void should_parse_multiple_series_titles(string postTitle, params string[] titles)
+        {
+            var seriesTitleInfo = Parser.Parser.ParseTitle(postTitle).SeriesTitleInfo;
+            seriesTitleInfo.AllTitles.Should().BeEquivalentTo(titles);
+        }
     }
 }

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

@@ -164,6 +164,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Series Title [HDTV][Cap.104](website.com).avi", "Series Title", 1, 4)]
         [TestCase("Series Title [HDTV][Cap.402](website.com).avi", "Series Title", 4, 2)]
         [TestCase("Series Title [HDTV 720p][Cap.101](website.com).mkv", "Series Title", 1, 1)]
+        [TestCase("Босх: Спадок (S2E1) / Series: Legacy (S2E1) (2023) WEB-DL 1080p Ukr/Eng | sub Eng", "Series: Legacy", 2, 1)]
 
         // [TestCase("", "", 0, 0)]
         public void should_parse_single_episode(string postTitle, string title, int seasonNumber, int episodeNumber)

src/NzbDrone.Core/Parser/Parser.cs

@@ -254,6 +254,11 @@ 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),
 
+                // TODO: Before this
+                // Single or multi episode releases with multiple titles, each followed by season and episode numbers in brackets
+                new Regex(@"^(?<title>.*?)[ ._]\(S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?E?[ ._]?(?<episode>(?<!\d+)\d{1,2}(?!\d+))(?:-(?<episode>(?<!\d+)\d{1,2}(?!\d+)))?\)(?:[ ._]\/[ ._])(?<title>.*?)[ ._]\(",
+                    RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 // Single episode season or episode S1E1 or S1-E1 or S1.Ep1 or S01.Ep.01
                 new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:\W?|_)S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?Ep?[ ._]?(?<episode>(?<!\d+)\d{1,2}(?!\d+))",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
@@ -883,7 +888,7 @@ namespace NzbDrone.Core.Parser
             return title;
         }
 
-        private static SeriesTitleInfo GetSeriesTitleInfo(string title)
+        private static SeriesTitleInfo GetSeriesTitleInfo(string title, MatchCollection matchCollection)
         {
             var seriesTitleInfo = new SeriesTitleInfo();
             seriesTitleInfo.Title = title;
@@ -906,6 +911,10 @@ namespace NzbDrone.Core.Parser
             {
                 seriesTitleInfo.AllTitles = matchComponents.Groups["title"].Captures.OfType<Capture>().Select(v => v.Value).ToArray();
             }
+            else if (matchCollection[0].Groups["title"].Captures.Count > 1)
+            {
+                seriesTitleInfo.AllTitles = matchCollection[0].Groups["title"].Captures.Select(c => c.Value.Replace('.', ' ').Replace('_', ' ')).ToArray();
+            }
 
             return seriesTitleInfo;
         }
@@ -1112,7 +1121,7 @@ namespace NzbDrone.Core.Parser
             }
 
             result.SeriesTitle = seriesName;
-            result.SeriesTitleInfo = GetSeriesTitleInfo(result.SeriesTitle);
+            result.SeriesTitleInfo = GetSeriesTitleInfo(result.SeriesTitle, matchCollection);
 
             Logger.Debug("Episode Parsed. {0}", result);