System.ArgumentOutOfRangeException

[StoyanDimitrov]

• Search type Regular expression
• Search string (two spaces)
• Replace string \t
• Match pattern: *.xhtml
• test-case.xhtml (extension changed due to GitHub upload restrictions)

<logevent time="2022-07-09 09:16:01.2004" level="Error" logger="dnGREP.WPF.App">
  <message>Unhandled exception caught</message>
  <exception>System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at dnGREP.WPF.ReplaceViewModel.SelectNextMatch()
   at dnGREP.WPF.ReplaceViewModel.SelectNextFile()
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
   at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
   at MS.Internal.LoadedOrUnloadedOperation.DoWork()
   at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   at System.Windows.Interop.HwndTarget.OnResize()
   at System.Windows.Interop.HwndTarget.HandleMessage(WindowMessage msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp; handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp; handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)</exception>
</logevent>

After dismissing the error dialogue (the one that points you to the log file) the replacement does not occur. The Replace dialogue does not have matches highlighted etc.

As a workaround I tried to change the regex to {2} (two repetitions of space character). This was partially successful because there was a successful replacements but text was used as literal '\t' - the resulting text was something like \t\t<h2>...

The final workaround was to use literal tab character.

[doug24]

There is an existing method to insert a tab in the Replace string, either by itself or with other characters: \\t
You can also use \\n and \\r for newline and return.

But I don't think they are in the documentation. I would like to keep these escape sequences as-is and add them to the documentation.

Anyone have any thoughts on this?

[StoyanDimitrov]

I'd add few more strings in the TTBx group, mentioning those escape sequences.

[doug24]

Fixed in release v3.0.136