Thinking more...

在 Linux mono 平台上缺少了一個輕量級的開發工具，而 snippetcompiler 又沒有 open source，所以腦筋就動到 黑暗執行緒 開發的 Mini C# Lab 上。

下載原始碼以後，先試著用 MonoDevelop 開啟，但卻因為路徑與檔名問題失敗，Linux 使用的路徑分隔字元與 Windows 不同，對大小寫檔名也比較嚴格，調整以後，就能開啟了。

接著去編譯，稍微調整 References 以後，也可以順利編譯。

最後要執行了，卻出現下面的錯誤：

Unhandled Exception: System.EntryPointNotFoundException: HideCaret
  at (wrapper managed-to-native) ICSharpCode.TextEditor.Caret:HideCaret (intptr)
  at ICSharpCode.TextEditor.Caret.DisposeCaret () [0x00000] 
  at ICSharpCode.TextEditor.Caret.RecreateCaret () [0x00000] 
  at ICSharpCode.TextEditor.TextArea.OptionsChanged () [0x00000] 
  at ICSharpCode.TextEditor.TextArea..ctor (ICSharpCode.TextEditor.TextEditorControl motherTextEditorControl, ICSharpCode.TextEditor.TextAreaControl motherTextAreaControl) [0x00000] 
  at (wrapper remoting-invoke-with-check) ICSharpCode.TextEditor.TextArea:.ctor (ICSharpCode.TextEditor.TextEditorControl,ICSharpCode.TextEditor.TextAreaControl)
  at ICSharpCode.TextEditor.TextAreaControl..ctor (ICSharpCode.TextEditor.TextEditorControl motherTextEditorControl) [0x00000] 
  at (wrapper remoting-invoke-with-check) ICSharpCode.TextEditor.TextAreaControl:.ctor (ICSharpCode.TextEditor.TextEditorControl)
  at ICSharpCode.TextEditor.TextEditorControl..ctor () [0x00000] 
  at (wrapper remoting-invoke-with-check) ICSharpCode.TextEditor.TextEditorControl:.ctor ()
  at MiniCSharpLab.Form1.InitializeComponent () [0x00000] 
  at MiniCSharpLab.Form1..ctor () [0x00000] 
  at (wrapper remoting-invoke-with-check) MiniCSharpLab.Form1:.ctor ()
  at MiniCSharpLab.Program.Main (System.String[] args) [0x00000] 

問題應該就出在 ICSharpCode.TextEditor.dll 裡，有空再用 MoMA 來分析或挖 ICSharpCode.TextEditor.dll 看看好了。