New: Parse original from release name when specified

Closes #5805

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

@@ -432,6 +432,16 @@ namespace NzbDrone.Core.Test.ParserTests
             result.Languages.Should().Contain(Language.English);
         }
 
+        [TestCase("Series.Title.S01E01.Original.1080P.WEB.H264-RlsGrp")]
+        [TestCase("Series.Title.S01E01.Orig.1080P.WEB.H264-RlsGrp")]
+        [TestCase("Series / S1E1-10 of 10 [2023, HEVC, HDR10, Dolby Vision, WEB-DL 2160p] [Hybrid] 3 XX + Original")]
+        public void should_parse_original_title_from_release_name(string postTitle)
+        {
+            var result = Parser.Parser.ParseTitle(postTitle);
+            result.Languages.Count.Should().Be(1);
+            result.Languages.Should().Contain(Language.Original);
+        }
+
         [TestCase("Остання серія (Сезон 1) / The Last Series (Season 1) (2024) WEB-DLRip-AVC 2xUkr/Eng | Sub Ukr/Eng")]
         [TestCase("Справжня серія (Сезон 1-3) / True Series (Season 1-3) (2014-2019) BDRip-AVC 3xUkr/Eng | Ukr/Eng")]
         [TestCase("Серія (Сезон 1-3) / The Series (Seasons 1-3) (2019-2022) BDRip-AVC 4xUkr/Eng | Sub 2xUkr/Eng")]

src/NzbDrone.Core/Parser/LanguageParser.cs

@@ -20,7 +20,7 @@ namespace NzbDrone.Core.Parser
                 new RegexReplace(@".*?[_. ](S\d{2}(?:E\d{2,4})*[_. ].*)", "$1", RegexOptions.Compiled | RegexOptions.IgnoreCase)
             };
 
-        private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<english>\b(?:ing|eng)\b)|(?<italian>\b(?:ita|italian)\b)|(?<german>german\b|videomann|ger[. ]dub)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)(?:FR|VF|VF2|VFF|VFI|VFQ|TRUEFRENCH|FRENCH)(?:\W|_))|(?<russian>\b(?:rus|ru)\b)|(?<hungarian>\b(?:HUNDUB|HUN)\b)|(?<hebrew>\bHebDub\b)|(?<polish>\b(?:PL\W?DUB|DUB\W?PL|LEK\W?PL|PL\W?LEK)\b)|(?<chinese>\[(?:CH[ST]|BIG5|GB)\]|简|繁|字幕)|(?<bulgarian>\bbgaudio\b)|(?<spanish>\b(?:español|castellano|esp|spa(?!\(Latino\)))\b)|(?<ukrainian>\b(?:\dx?)?(?:ukr))|(?<thai>\b(?:THAI)\b)|(?<romanian>\b(?:RoDubbed|ROMANIAN)\b)|(?<catalan>[-,. ]cat[. ](?:DD|subs)|\b(?:catalan|catalán)\b)|(?<latvian>\b(?:lat|lav|lv)\b)|(?<turkish>\b(?:tur)\b)",
+        private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<english>\b(?:ing|eng)\b)|(?<italian>\b(?:ita|italian)\b)|(?<german>german\b|videomann|ger[. ]dub)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)(?:FR|VF|VF2|VFF|VFI|VFQ|TRUEFRENCH|FRENCH)(?:\W|_))|(?<russian>\b(?:rus|ru)\b)|(?<hungarian>\b(?:HUNDUB|HUN)\b)|(?<hebrew>\bHebDub\b)|(?<polish>\b(?:PL\W?DUB|DUB\W?PL|LEK\W?PL|PL\W?LEK)\b)|(?<chinese>\[(?:CH[ST]|BIG5|GB)\]|简|繁|字幕)|(?<bulgarian>\bbgaudio\b)|(?<spanish>\b(?:español|castellano|esp|spa(?!\(Latino\)))\b)|(?<ukrainian>\b(?:\dx?)?(?:ukr))|(?<thai>\b(?:THAI)\b)|(?<romanian>\b(?:RoDubbed|ROMANIAN)\b)|(?<catalan>[-,. ]cat[. ](?:DD|subs)|\b(?:catalan|catalán)\b)|(?<latvian>\b(?:lat|lav|lv)\b)|(?<turkish>\b(?:tur)\b)|(?<original>\b(?:orig|original)\b)",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex CaseSensitiveLanguageRegex = new Regex(@"(?:(?i)(?<!SUB[\W|_|^]))(?:(?<lithuanian>\bLT\b)|(?<czech>\bCZ\b)|(?<polish>\bPL\b)|(?<bulgarian>\bBG\b)|(?<slovak>\bSK\b))(?:(?i)(?![\W|_|^]SUB))",
@@ -470,6 +470,11 @@ namespace NzbDrone.Core.Parser
                 {
                     languages.Add(Language.Turkish);
                 }
+
+                if (match.Groups["original"].Success)
+                {
+                    languages.Add(Language.Original);
+                }
             }
 
             return languages;