feat: export Sogou Pinyin backup dictionaries

README.md

@@ -129,7 +129,7 @@ imewlconverter -i <输入格式> -o <输出格式> -O <输出文件> <输入文
 |---------|------|-----------|:-------:|:-------:|
 | `scel` | 搜狗拼音细胞词库 | .scel | ✅ | ✅ |
 | `sgpy` | 搜狗拼音文本格式 | .txt | ✅ | ✅ |
-| `sgpybin` | 搜狗拼音备份词库 | .bin | ✅ | ❌ |
+| `sgpybin` | 搜狗拼音备份词库 | .bin | ✅ | ✅ |
 | `qqpy` | QQ 拼音文本格式 | .txt | ✅ | ✅ |
 | `qpyd` | QQ 拼音分类词库 | .qpyd | ✅ | ❌ |
 | `qcel` | QQ 拼音细胞词库 | .qcel | ✅ | ❌ |
@@ -251,4 +251,4 @@ cd ../../tests/integration
 
 ## Star History
 
-[![Star History Chart](https://api.star-history.com/svg?repos=studyzy/imewlconverter&type=Date)](https://star-history.com/#studyzy/imewlconverter&Date)
+[![Star History Chart](https://api.star-history.com/svg?repos=studyzy/imewlconverter&type=Date)](https://star-history.com/#studyzy/imewlconverter&Date)

src/IME WL Converter Win/Forms/MainForm.cs

@@ -56,6 +56,7 @@ public partial class MainForm : Form
     private int _convertedCount;
 
     private string? _exportContent;
+    private byte[]? _exportData;
 
     private CancellationTokenSource? _cts;
 
@@ -382,6 +383,7 @@ private async void btnConvert_Click(object? sender, EventArgs e)
 
         richTextBox1.Clear();
         _exportContent = null;
+        _exportData = null;
         _cts = new CancellationTokenSource();
         SetConvertingState(true);
 
@@ -426,6 +428,7 @@ private async void btnConvert_Click(object? sender, EventArgs e)
             {
                 _convertedCount = result.Value.ExportedCount;
                 _exportContent = result.Value.ExportContent;
+                _exportData = result.Value.ExportData;
                 HandleConversionCompleted(result.Value);
             }
             else
@@ -552,7 +555,11 @@ private void HandleConversionCompleted(ConversionResult result)
 
             if (saveFileDialog1.ShowDialog() == DialogResult.OK)
             {
-                if (_exportContent != null)
+                if (_exportData != null)
+                {
+                    File.WriteAllBytes(saveFileDialog1.FileName, _exportData);
+                }
+                else if (_exportContent != null)
                 {
                     File.WriteAllText(saveFileDialog1.FileName, _exportContent);
                 }

src/ImeWlConverter.Abstractions/Contracts/IConversionPipeline.cs

@@ -62,6 +62,9 @@ public sealed record ConversionResult
     /// <summary>Export content as string (for GUI display). Only populated when OutputStream is used.</summary>
     public string? ExportContent { get; init; }
 
+    /// <summary>Export data for binary formats. Only populated when OutputStream is used.</summary>
+    public byte[]? ExportData { get; init; }
+
     /// <summary>Accumulated error messages from individual file processing.</summary>
     public string? ErrorMessages { get; init; }
 }

src/ImeWlConverter.Core/Pipeline/ConversionPipeline.cs

@@ -141,20 +141,37 @@ e.Code is not null &&
         progress?.Report(new ProgressInfo(exportedCount, exportedCount, $"正在导出 {exportedCount} 条词条..."));
 
         string? exportContent = null;
+        byte[]? exportData = null;
 
         if (request.OutputStream is not null)
         {
-            // GUI mode: write to provided stream, capture content
-            await exporter.ExportAsync(entries, request.OutputStream, request.Options.Export, ct);
-            request.OutputStream.Position = 0;
-            using var reader = new StreamReader(request.OutputStream, exporter.OutputEncoding, leaveOpen: true);
-            exportContent = await reader.ReadToEndAsync(ct);
+            // GUI mode: write to provided stream and retain the exact output for saving.
+            var exportResult = await exporter.ExportAsync(entries, request.OutputStream, request.Options.Export, ct);
+            exportedCount = exportResult.EntryCount;
+            filteredCount = importedCount - exportedCount;
+            if (request.OutputStream.CanSeek && request.OutputStream.CanRead)
+            {
+                request.OutputStream.Position = 0;
+                if (exporter.Metadata.IsBinary)
+                {
+                    using var copy = new MemoryStream();
+                    await request.OutputStream.CopyToAsync(copy, ct);
+                    exportData = copy.ToArray();
+                }
+                else
+                {
+                    using var reader = new StreamReader(request.OutputStream, exporter.OutputEncoding, leaveOpen: true);
+                    exportContent = await reader.ReadToEndAsync(ct);
+                }
+            }
         }
         else if (request.OutputPath is not null)
         {
             // CLI/file mode: write directly to file
             using var outputStream = File.Create(request.OutputPath);
-            await exporter.ExportAsync(entries, outputStream, request.Options.Export, ct);
+            var exportResult = await exporter.ExportAsync(entries, outputStream, request.Options.Export, ct);
+            exportedCount = exportResult.EntryCount;
+            filteredCount = importedCount - exportedCount;
         }
 
         var errorStr = errors.Length > 0 ? errors.ToString() : null;
@@ -165,6 +182,7 @@ e.Code is not null &&
             ExportedCount = exportedCount,
             FilteredCount = filteredCount,
             ExportContent = exportContent,
+            ExportData = exportData,
             ErrorMessages = errorStr
         });
     }
@@ -212,11 +230,11 @@ private async Task<Result<ConversionResult>> ExecutePerFileAsync(
 
                 var outputFile = Path.Combine(
                     request.OutputDirectory ?? ".",
-                    Path.GetFileNameWithoutExtension(file) + ".txt");
+                    Path.GetFileNameWithoutExtension(file) + exporter.Metadata.FileExtension);
                 using var outStream = File.Create(outputFile);
-                await exporter.ExportAsync(fileEntries, outStream, request.Options.Export, ct);
+                var exportResult = await exporter.ExportAsync(fileEntries, outStream, request.Options.Export, ct);
 
-                totalConverted += fileEntries.Count;
+                totalConverted += exportResult.EntryCount;
                 progress?.Report(new ProgressInfo(i + 1, totalFiles, $"已导出: {outputFile}"));
             }
             catch (OperationCanceledException) { throw; }