Included more encodings in the build settings + only list encoding which are available

see https://developer.xamarin.com/guides/ios/advanced_topics/localization_and_internationalization/encodings/#west for more info

Author: niksedk

MacLibSe/EncodingHelper.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Text;
+using System.Collections.Generic;
+
+namespace MacLibSe
+{
+    public static class EncodingHelper
+    {
+        private static List<EncodingInfo> _availableEncodings;
+        public static List<EncodingInfo> GetEncodings()
+        {
+            if (_availableEncodings == null)
+            {
+                _availableEncodings = new List<EncodingInfo> ();
+                foreach (EncodingInfo ei in Encoding.GetEncodings()) 
+                {
+                    try
+                    {
+                        if (ei.GetEncoding() != null)
+                        {
+                            _availableEncodings.Add(ei);
+                        }
+                    }
+                    catch
+                    {
+                        // ignore
+                    }
+                }
+            }
+            return _availableEncodings;
+        }
+    }
+}
+

MacLibSe/MacLibSe.csproj

@@ -65,6 +65,7 @@
     <Compile Include="Point.cs" />
     <Compile Include="Size.cs" />
     <Compile Include="ContentAlignment.cs" />
+    <Compile Include="EncodingHelper.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Mac\Xamarin.Mac.CSharp.targets" />
 </Project>

SubtitleEdit/SubtitleEdit.csproj

@@ -31,6 +31,7 @@
     <PackageSigningKey>Developer ID Installer</PackageSigningKey>
     <XamMacArch>x86_64</XamMacArch>
     <Profiling>false</Profiling>
+    <I18n>cjk,mideast,other,west</I18n>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>full</DebugType>

SubtitleEdit/Windows/File/OpenWithManualChosenEncoding.cs

@@ -6,6 +6,7 @@
 using AppKit;
 using Foundation;
 using Nikse.SubtitleEdit.Core;
+using MacLibSe;
 
 namespace File
 {
@@ -94,7 +95,7 @@ public override void AwakeFromNib()
 
             _allEncodings = new List<Encoding>();
             _allEncodings.Add(Encoding.UTF8);
-            foreach (var ei in Encoding.GetEncodings())
+            foreach (var ei in EncodingHelper.GetEncodings())
             {
                 try
                 {

SubtitleEdit/Windows/MainWindow.cs

@@ -11,6 +11,8 @@
 using System.Linq;
 using UILogic;
 using CoreGraphics;
+using Nikse.SubtitleEdit.Core.DetectEncoding;
+using MacLibSe;
 
 namespace Nikse.SubtitleEdit.Windows
 {
@@ -206,7 +208,7 @@ void InitializeToolbar()
 
             toolbarEncodingComboBox.RemoveAll();
             toolbarEncodingComboBox.Add(new NSString(Encoding.UTF8.BodyName));
-            foreach (var ei in Encoding.GetEncodings())
+            foreach (var ei in EncodingHelper.GetEncodings())
             {
                 if (ei.Name != Encoding.UTF8.BodyName && ei.CodePage >= 949 && !ei.Name.Contains("EBCDIC") && ei.CodePage != 1047) //Configuration.Settings.General.EncodingMinimumCodePage)
                     toolbarEncodingComboBox.Add(new NSString(ei.CodePage + ": " + ei.Name));
@@ -274,12 +276,19 @@ public void SetEncoding(string encoding)
 
         public Encoding GetEncoding()
         {
-            var selectedValue = toolbarEncodingComboBox.SelectedValue.ToString();
-            foreach (var ei in Encoding.GetEncodings())
+            var selectedValue = toolbarEncodingComboBox.SelectedValue.ToString();           
+            foreach (var ei in EncodingHelper.GetEncodings())
             {
                 if (selectedValue.StartsWith(ei.CodePage + ":"))
                 {
-                    return ei.GetEncoding();
+                    try
+                    {
+                        return ei.GetEncoding();
+                    }
+                    catch (Exception exception)
+                    {
+                        MessageBox.Show("Encoding is missing: " + exception.Message);
+                    }
                 }
             }
             return Encoding.UTF8;