Fixing NET462 incorrect uppecase for specific characters.

sebastienros · Dec 27, 2023 · 3f11c01 · 3f11c01
1 parent 476335e
commit 3f11c01
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/Jint/Native/String/StringPrototype.cs b/Jint/Native/String/StringPrototype.cs
@@ -248,6 +248,13 @@ private JsValue ToLocaleUpperCase(JsValue thisObject, JsValue[] arguments)
             if (string.Equals("lt", culture.Name, StringComparison.OrdinalIgnoreCase))
             {
                 s = StringInlHelper.LithuanianStringProcessor(s);
+#if NET462
+                // Code specific to .NET Framework 4.6.2.
+                // For no good reason this verison does not upper case these characters correctly.
+                return new JsString(s.ToUpper(culture)
+                    .Replace("ϳ", "Ϳ")
+                    .Replace("ʝ", "Ʝ"));
+#endif
             }
 
             return new JsString(s.ToUpper(culture));