InvalidOperationException: A highlighting span matched 0 characters, which would cause an endless loop.
Change the highlighting definition so that either the start or the end regex matches at least one character.
Start regex: 
		            (?<!(?<!\\)\|.*)
		            (?<!(?<!\\)\|\|\|.*)	            
		            (?=(?<!\\)\[)
		            
End regex: ($|
)
StackTrace:
   在 ICSharpCode.AvalonEdit.Highlighting.HighlightingEngine.HighlightLineInternal()
   在 ICSharpCode.AvalonEdit.Highlighting.HighlightingEngine.ScanLine(IDocument document, IDocumentLine line)
   在 ICSharpCode.AvalonEdit.Highlighting.DocumentHighlighter.HighlightUpTo(Int32 targetLineNumber)
   在 ICSharpCode.AvalonEdit.Highlighting.DocumentHighlighter.HighlightLine(Int32 lineNumber)
   在 ICSharpCode.AvalonEdit.Highlighting.HighlightingColorizer.ColorizeLine(DocumentLine line)
   在 ICSharpCode.AvalonEdit.Rendering.DocumentColorizingTransformer.Colorize(ITextRunConstructionContext context)
   在 ICSharpCode.AvalonEdit.Highlighting.HighlightingColorizer.Colorize(ITextRunConstructionContext context)
   在 ICSharpCode.AvalonEdit.Rendering.ColorizingTransformer.Transform(ITextRunConstructionContext context, IList`1 elements)
   在 ICSharpCode.AvalonEdit.Rendering.VisualLine.RunTransformers(ITextRunConstructionContext context, IVisualLineTransformer[] transformers)
   在 ICSharpCode.AvalonEdit.Rendering.TextView.BuildVisualLine(DocumentLine documentLine, TextRunProperties globalTextRunProperties, VisualLineTextParagraphProperties paragraphProperties, VisualLineElementGenerator[] elementGeneratorsArray, IVisualLineTransformer[] lineTransformersArray, Size availableSize)
   在 ICSharpCode.AvalonEdit.Rendering.TextView.GetOrConstructVisualLine(DocumentLine documentLine)
   在 ICSharpCode.AvalonEdit.Editing.Caret.ValidateVisualColumn()
   在 ICSharpCode.AvalonEdit.Editing.SelectionMouseHandler.textArea_MouseLeftButtonDown(Object sender, MouseButtonEventArgs e)
   在 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   在 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   在 System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   在 System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
   在 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   在 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   在 System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   在 System.Windows.Input.InputManager.ProcessStagingArea()
   在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   在 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   在 System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   在 System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)