From e5cf15ae2b539ca09e4ee1e131dd1486ce7cd3a8 Mon Sep 17 00:00:00 2001
From: Mark McDowall <mark@mcdowall.ca>
Date: Sun, 13 Jul 2025 08:25:54 -0700
Subject: [PATCH] New: Parse '(JA)' as Japanese

Closes #7956
---
 .../ParserTests/LanguageParserFixture.cs                   | 1 +
 src/NzbDrone.Core/Parser/LanguageParser.cs                 | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/NzbDrone.Core.Test/ParserTests/LanguageParserFixture.cs b/src/NzbDrone.Core.Test/ParserTests/LanguageParserFixture.cs
index 25d9ddc5b..b9c69d7e9 100644
--- a/src/NzbDrone.Core.Test/ParserTests/LanguageParserFixture.cs
+++ b/src/NzbDrone.Core.Test/ParserTests/LanguageParserFixture.cs
@@ -145,6 +145,7 @@ public void should_parse_language_dutch(string postTitle)
         }
 
         [TestCase("Title.the.Series.2009.S01E14.Japanese.HDTV.XviD-LOL")]
+        [TestCase("[Erai-raws] To Be Series - 14 (JA) [1080p CR WEB-DL AVC AAC][MultiSub]")]
         public void should_parse_language_japanese(string postTitle)
         {
             var result = LanguageParser.ParseLanguages(postTitle);
diff --git a/src/NzbDrone.Core/Parser/LanguageParser.cs b/src/NzbDrone.Core/Parser/LanguageParser.cs
index f888ef7dd..cbcaf5a22 100644
--- a/src/NzbDrone.Core/Parser/LanguageParser.cs
+++ b/src/NzbDrone.Core/Parser/LanguageParser.cs
@@ -20,7 +20,7 @@ public static class LanguageParser
                 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>(?:swiss)?german\b|videomann|ger[. ]dub|\bger\b)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_|\b)(?:FR|VF|VF2|VFF|VFI|VFQ|TRUEFRENCH|FRENCH|FRE|FRA)(?:\W|_|\b))|(?<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)|(?<urdu>\burdu\b)|(?<romansh>\b(?:romansh|rumantsch|romansch)\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>(?:swiss)?german\b|videomann|ger[. ]dub|\bger\b)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_|\b)(?:FR|VF|VF2|VFF|VFI|VFQ|TRUEFRENCH|FRENCH|FRE|FRA)(?:\W|_|\b))|(?<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)|(?<urdu>\burdu\b)|(?<romansh>\b(?:romansh|rumantsch|romansch)\b)|(?<japanese>\(JA\))|(?<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)|(?<german>\bDE\b))(?:(?i)(?![\W|_|^]SUB))",
@@ -496,6 +496,11 @@ private static List<Language> RegexLanguage(string title)
                     languages.Add(Language.Romansh);
                 }
 
+                if (match.Groups["japanese"].Success)
+                {
+                    languages.Add(Language.Japanese);
+                }
+
                 if (match.Groups["original"].Success)
                 {
                     languages.Add(Language.Original);