Added Lithuanian and Czech languages

New: Added Lithuanian language
New: Added Czech language

Closes #1857
Closes #2113

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

@@ -1,4 +1,4 @@
-using FluentAssertions;
+using FluentAssertions;
 using NUnit.Framework;
 using NzbDrone.Core.Parser;
 using NzbDrone.Core.Test.Framework;
@@ -47,6 +47,8 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Castle.2009.S01E14.HDTV.XviD.ENG.HUN-LOL", Language.Hungarian)]
         [TestCase("Castle.2009.S01E14.HDTV.XviD.HUN-LOL", Language.Hungarian)]
         [TestCase("Avatar.The.Last.Airbender.S01-03.DVDRip.HebDub",Language.Hebrew)]
+        [TestCase("Prison.Break.S05E01.WEBRip.x264.AC3.LT.EN-CNN", Language.Lithuanian)]
+        [TestCase("The.​Walking.​Dead.​S07E11.​WEB Rip.​XviD.​Louige-​CZ.​EN.​5.​1", Language.Czech)]
         public void should_parse_language(string postTitle, Language language)
         {
             var result = LanguageParser.ParseLanguage(postTitle);

src/NzbDrone.Core/Parser/IsoLanguages.cs

@@ -29,7 +29,9 @@ namespace NzbDrone.Core.Parser
                                                                new IsoLanguage("el", "ell", Language.Greek),
                                                                new IsoLanguage("ko", "kor", Language.Korean),
                                                                new IsoLanguage("hu", "hun", Language.Hungarian),
-                                                               new IsoLanguage("he", "heb", Language.Hebrew)
+                                                               new IsoLanguage("he", "heb", Language.Hebrew),
+                                                               new IsoLanguage("lt", "lit", Language.Lithuanian),
+                                                               new IsoLanguage("cs", "ces", Language.Czech)
                                                            };
 
         public static IsoLanguage Find(string isoCode)

src/NzbDrone.Core/Parser/Language.cs

@@ -25,6 +25,8 @@
         Greek = 20,
         Korean = 21,
         Hungarian = 22,
-        Hebrew = 23
+        Hebrew = 23,
+        Lithuanian = 24,
+        Czech = 25
     }
 }

src/NzbDrone.Core/Parser/LanguageParser.cs

@@ -14,6 +14,10 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<italian>\b(?:ita|italian)\b)|(?<german>german\b|videomann)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)(?:FR|VOSTFR)(?:\W|_))|(?<russian>\brus\b)|(?<dutch>nl\W?subs?)|(?<hungarian>\b(?:HUNDUB|HUN)\b)|(?<hebrew>\bHebDub\b)",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
+        private static readonly Regex CaseSensitiveLanguageRegex = new Regex(@"(?<lithuanian>\bLT\b)|(?<czech>\bCZ\b)",
+                                                                RegexOptions.Compiled);
+
+
         private static readonly Regex SubtitleLanguageRegex = new Regex(".+?[-_. ](?<iso_code>[a-z]{2,3})$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
 
         public static Language ParseLanguage(string title)
@@ -80,34 +84,12 @@ namespace NzbDrone.Core.Parser
             if (lowerTitle.Contains("hebrew"))
                 return Language.Hebrew;
 
-            var match = LanguageRegex.Match(title);
-
-            if (match.Groups["italian"].Captures.Cast<Capture>().Any())
-                return Language.Italian;
-
-            if (match.Groups["german"].Captures.Cast<Capture>().Any())
-                return Language.German;
-
-            if (match.Groups["flemish"].Captures.Cast<Capture>().Any())
-                return Language.Flemish;
-
-            if (match.Groups["greek"].Captures.Cast<Capture>().Any())
-                return Language.Greek;
-
-            if (match.Groups["french"].Success)
-                return Language.French;
-
-            if (match.Groups["russian"].Success)
-                return Language.Russian;
+            var regexLanguage = RegexLanguage(title);
 
-            if (match.Groups["dutch"].Success)
-                return Language.Dutch;
-
-            if (match.Groups["hungarian"].Success)
-                return Language.Hungarian;
-
-            if (match.Groups["hebrew"].Success)
-                return Language.Hebrew;
+            if (regexLanguage != Language.Unknown)
+            {
+                return regexLanguage;
+            }
 
             return Language.English;
         }
@@ -146,5 +128,49 @@ namespace NzbDrone.Core.Parser
 
             return Language.Unknown;
         }
+
+        private static Language RegexLanguage(string title)
+        {
+            // Case sensitive
+            var caseSensitiveMatch = CaseSensitiveLanguageRegex.Match(title);
+
+            if (caseSensitiveMatch.Groups["lithuanian"].Captures.Cast<Capture>().Any())
+                return Language.Lithuanian;
+
+            if (caseSensitiveMatch.Groups["czech"].Captures.Cast<Capture>().Any())
+                return Language.Czech;
+
+            // Case insensitive
+            var match = LanguageRegex.Match(title);
+
+            if (match.Groups["italian"].Captures.Cast<Capture>().Any())
+                return Language.Italian;
+
+            if (match.Groups["german"].Captures.Cast<Capture>().Any())
+                return Language.German;
+
+            if (match.Groups["flemish"].Captures.Cast<Capture>().Any())
+                return Language.Flemish;
+
+            if (match.Groups["greek"].Captures.Cast<Capture>().Any())
+                return Language.Greek;
+
+            if (match.Groups["french"].Success)
+                return Language.French;
+
+            if (match.Groups["russian"].Success)
+                return Language.Russian;
+
+            if (match.Groups["dutch"].Success)
+                return Language.Dutch;
+
+            if (match.Groups["hungarian"].Success)
+                return Language.Hungarian;
+
+            if (match.Groups["hebrew"].Success)
+                return Language.Hebrew;
+
+            return Language.Unknown;
+        }
     }
 }