Repository navigation
ListView prediction breaks RevertLine() #5047
Description
Prerequisites
- Write a descriptive title.
- Make sure you are able to repro it on the latest released version
- Search the existing issues, especially the pinned issues.
Exception report
N/AScreenshot
Environment data
PS Version: 7.5.4
PS HostName: ConsoleHost (Windows Terminal)
PSReadLine Version: 2.4.5
PSReadLine EditMode: Windows
OS: 10.0.26100.7306 (WinBuild.160101.0800)
BufferWidth: 361
BufferHeight: 96Steps to reproduce
In a pwsh -NoProfile session, run the following:
Set-PSReadLineKeyHandler -Chord "Ctrl+r" -ScriptBlock {
[Microsoft.PowerShell.PSConsoleReadLine]::RevertLine()
[Microsoft.PowerShell.PSConsoleReadLine]::Insert("Inserted Text")
}
Set-PSReadLineOption -PredictionViewStyle ListViewThen, type foo (without pressing the enter key) and press Ctrl+R.
Expected behavior
Pressing Ctrl+R should replace foo by Inserted Text in the prompt.
Actual behavior
Pressing Ctrl+R adds Inserted Text to the existing foo: the end result is fooInserted Text in the prompt.
Reacted by sususu98
Activity
daxian-dbw commentedon Jan 5, 2026
This is because
RevertLinebehaves differently when list view is active. When list view is active,RevertLinereverts back to the original user input, even if a different list item gets selected by UpArrow/DownArrow.Maybe
RevertLineshould continue erase the whole line when no item is selected in the list view (meaning the user didn't select anything in the list, so no need to revert to the original user input.)To work around it for now, your key handler needs to have 2
RevertLinecalls in it.ltrzesniewski commentedon Jan 5, 2026
Thanks for the explanation!
Well, that's exactly the problem described here. This was surprising to me. 😅
The method's documentation is:
I didn't realize this was related to the list view. From its behavior, I thought this was an equivalent of a
Clear()method, which doesn't exist. I guess I should have been more careful given the documentation I didn't understand.In any case, I suppose this method requires a more precise documentation.
fix(powershell): add error safety and cleanup (#3040)
ltrzesniewski commentedon Jan 5, 2026
Maybe
RevertLineshould either be a no-op, or just remove the prediction inInlineViewmode?That would better match its description and behavior in
ListViewmode, but it would be a breaking change.