Fixed: Parse GER/DE releases as German language

Fix parsing for German language to correctly detect "GER" and "DE"
Update test for GER/DE language parsing.

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

@@ -86,6 +86,12 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Title.the.Series.S04E15.Brotherly.Love.GERMAN.DUBBED.WS.WEBRiP.XviD.REPACK-TVP")]
         [TestCase("The Series Title - S02E16 - Kampfhaehne - mkv - by Videomann")]
         [TestCase("Series.Title.S01E03.Ger.Dub.AAC.1080p.WebDL.x264-TKP21")]
+        [TestCase("Series Title S01 Eng Fre Ger Ita Spa Cze Jpn 2160p BluRay Remux DV HDR HEVC Atmos SGF")]
+        [TestCase("Series Title.S01.Eng.Fre.Ger.Ita.Por.Spa.2160p.WEBMux.DV.HDR.HEVC.Atmos-SGF")]
+        [TestCase("Series.Title.S02E10.Episode.Title.German.DL.BD.x264-TVS")]
+        [TestCase("Series Title S01 Eng Fre Ger Ita Por Spa 2160p WEBMux HDR HEVC DDP SGF")]
+        [TestCase("Series Title S01 KOREAN ENG FRA GER ITA SPA MULTI 2160p NF WEB DL DDP5 1 DV HDR x265 Atmos MassModz")]
+        [TestCase("Series.Title.S02E09.EpisodeName.German.DL.BD.x264-TVS")]
         public void should_parse_language_german(string postTitle)
         {
             var result = LanguageParser.ParseLanguages(postTitle);

src/NzbDrone.Core/Parser/LanguageParser.cs

@@ -20,10 +20,10 @@ 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)|(?<original>\b(?:orig|original)\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|\bger\b)|(?<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))",
+        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)|(?<german>\bDE\b))(?:(?i)(?![\W|_|^]SUB))",
                                                                 RegexOptions.Compiled);
 
         private static readonly Regex GermanDualLanguageRegex = new (@"(?<!WEB[-_. ]?)\bDL\b", RegexOptions.Compiled | RegexOptions.IgnoreCase);
@@ -366,6 +366,11 @@ namespace NzbDrone.Core.Parser
                 languages.Add(Language.Slovak);
             }
 
+            if (caseSensitiveMatch.Groups["german"].Captures.Any())
+            {
+                languages.Add(Language.German);
+            }
+
             // Case insensitive
             var matches = LanguageRegex.Matches(title);
 

src/NzbDrone.Core/Parser/Parser.cs

@@ -557,7 +557,7 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex CleanQualityBracketsRegex = new Regex(@"\[[a-z0-9 ._-]+\]$",
                                                                    RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-        private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+(?<part2>-[a-z0-9]+)?(?!.+?(?:480p|576p|720p|1080p|2160p)))(?<!(?:WEB-DL|Blu-Ray|480p|576p|720p|1080p|2160p|DTS-HD|DTS-X|DTS-MA|DTS-ES|-ES|-EN|-CAT|[ ._]\d{4}-\d{2}|-\d{2})(?:\k<part2>)?)(?:\b|[-._ ]|$)|[-._ ]\[(?<releasegroup>[a-z0-9]+)\]$",
+        private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+(?<part2>-[a-z0-9]+)?(?!.+?(?:480p|576p|720p|1080p|2160p)))(?<!(?:WEB-DL|Blu-Ray|480p|576p|720p|1080p|2160p|DTS-HD|DTS-X|DTS-MA|DTS-ES|-ES|-EN|-CAT|-GER|[ ._]\d{4}-\d{2}|-\d{2})(?:\k<part2>)?)(?:\b|[-._ ]|$)|[-._ ]\[(?<releasegroup>[a-z0-9]+)\]$",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex InvalidReleaseGroupRegex = new Regex(@"^([se]\d+|[0-9a-f]{8})$", RegexOptions.IgnoreCase | RegexOptions.Compiled);