From 4ab015eea8084efcf5344d27826c6462fdc659dd Mon Sep 17 00:00:00 2001
From: ema <mccoy39082@163.com>
Date: Fri, 13 Dec 2024 22:12:14 +0800
Subject: [PATCH] Fix CSV viewer not support formats other than UTF8

This may have the disadvantage of slowing down the startup speed of large CSV files.
---
 .../QuickLook.Plugin.CsvViewer/CsvViewerPanel.xaml.cs | 11 ++++++++---
 .../QuickLook.Plugin.CsvViewer.csproj                 |  3 ++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/CsvViewerPanel.xaml.cs b/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/CsvViewerPanel.xaml.cs
index 78119822..02372dbf 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/CsvViewerPanel.xaml.cs
+++ b/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/CsvViewerPanel.xaml.cs
@@ -22,10 +22,12 @@
 using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Text;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
 using System.Windows.Media;
+using UtfUnknown;
 
 namespace QuickLook.Plugin.CsvViewer;
 
@@ -39,14 +41,17 @@ public CsvViewerPanel()
         InitializeComponent();
     }
 
-    public List<string[]> Rows { get; private set; } = new List<string[]>();
+    public List<string[]> Rows { get; private set; } = [];
 
     public void LoadFile(string path)
     {
         const int limit = 10000;
         var binded = false;
 
-        using (var sr = new StreamReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
+        var encoding = CharsetDetector.DetectFromFile(path).Detected?.Encoding ??
+                       Encoding.Default;
+
+        using (var sr = new StreamReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), encoding))
         {
             var conf = new CsvConfiguration(CultureInfo.CurrentUICulture) { MissingFieldFound = null, BadDataFound = null, DetectDelimiter = true };
 
@@ -58,7 +63,7 @@ public void LoadFile(string path)
                     var row = parser.Record;
                     if (row == null)
                         break;
-                    row = Concat(new[] { $"{i++ + 1}".PadLeft(6) }, row);
+                    row = Concat([$"{i++ + 1}".PadLeft(6)], row);
 
                     if (!binded)
                     {
diff --git a/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/QuickLook.Plugin.CsvViewer.csproj b/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/QuickLook.Plugin.CsvViewer.csproj
index fbd412d5..88aba7af 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/QuickLook.Plugin.CsvViewer.csproj
+++ b/QuickLook.Plugin/QuickLook.Plugin.CsvViewer/QuickLook.Plugin.CsvViewer.csproj
@@ -52,7 +52,8 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="CsvHelper" Version="27.1.1" />
+        <PackageReference Include="CsvHelper" Version="33.0.1" />
+		<PackageReference Include="UTF.Unknown" Version="2.5.1" />
     </ItemGroup>
 
     <ItemGroup>