Fixed: No longer reports SxxExx as releasegroup if original title uses - separator.

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

@@ -25,6 +25,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Simpsons 10x11 - Wild Barts Cant Be Broken [rl].avi", null)]
         [TestCase("[ www.Torrenting.com ] - Revenge.S03E14.720p.HDTV.X264-DIMENSION", "DIMENSION")]
         [TestCase("Seed S02E09 HDTV x264-2HD [eztv]-[rarbg.com]", "2HD")]
+        [TestCase("7s-atlantis-s02e01-720p.mkv", null)]
         //[TestCase("", "")]
         public void should_parse_release_group(string title, string expected)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -165,13 +165,13 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex SixDigitAirDateRegex = new Regex(@"(?<=[_.-])(?<airdate>(?<!\d)(?<airyear>[1-9]\d{1})(?<airmonth>[0-1][0-9])(?<airday>[0-3][0-9]))(?=[_.-])",
                                                                         RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-        private static readonly Regex CleanReleaseGroupRegex = new Regex(@"^(\[\s.+?\s\])|-(RP|1|NZBGeek|sample)$",
+        private static readonly Regex CleanReleaseGroupRegex = new Regex(@"^(.*?[-._ ](S\d+E\d+)[-._ ])|-(RP|1|NZBGeek|sample)$",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+)\b(?<!WEB-DL|480p|720p|1080p)",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-        private static readonly Regex AnimeReleaseGroupRegex = new Regex(@"^(?:\[(?<subgroup>(?<!\s).+?(?!\s))\](?:_|-|\s|\.)?)",
+        private static readonly Regex AnimeReleaseGroupRegex = new Regex(@"^(?:\[(?<subgroup>(?!\s).+?(?<!\s))\](?:_|-|\s|\.)?)",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<italian>\bita\b|italian)|(?<german>german\b|videomann)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)(?:FR|VOSTFR)(?:\W|_))|(?<russian>\brus\b)|(?<dutch>nl\W?subs?)",
@@ -362,7 +362,7 @@ namespace NzbDrone.Core.Parser
         {
             title = title.Trim();
             title = RemoveFileExtension(title);
-            title = CleanReleaseGroupRegex.Replace(title, "");
+            title = WebsitePrefixRegex.Replace(title, "");
 
             var animeMatch = AnimeReleaseGroupRegex.Match(title);
 
@@ -371,6 +371,8 @@ namespace NzbDrone.Core.Parser
                 return animeMatch.Groups["subgroup"].Value;
             }
 
+            title = CleanReleaseGroupRegex.Replace(title, "");
+
             var matches = ReleaseGroupRegex.Matches(title);
 
             if (matches.Count != 0)