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.HighlightLine(IDocument document, IDocumentLine line)
   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.CalculateCaretRectangle()
   在 ICSharpCode.AvalonEdit.Editing.Caret.BringCaretToView(Double border)
   在 ICSharpCode.AvalonEdit.Editing.TextArea.PerformTextInput(TextCompositionEventArgs e)
   在 ICSharpCode.AvalonEdit.Editing.TextArea.OnTextInput(TextCompositionEventArgs 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.TextCompositionManager.PostProcessInput(Object sender, ProcessInputEventArgs e)
   在 System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   在 System.Windows.Input.InputManager.ProcessStagingArea()
   在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   在 System.Windows.Input.TextCompositionManager.PostProcessInput(Object sender, ProcessInputEventArgs e)
   在 System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   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.HwndKeyboardInputProvider.ProcessTextInputAction(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
   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)