SendInput with newlines in it outputs the text backward

[PankajBhojwani]

Windows Terminal version

latest build of main

Windows build number

No response

Other Software

Powershell 7

Steps to reproduce

Make a 'sendInput' command with newlines in the settings json, example:

            "command": 
            {
                "action": "sendInput",
                "input": "a\nb\nc"
            },
            "name": "test sendinput"

Invoke the command in terminal

Expected Behavior

The text output should be a, then b, then c as below

Actual Behavior

The actual output is reversed, and goes c->b->a

[PankajBhojwani]

Update: with command prompt instead we get:

I.e. the text is in the correct order but there's no new lines at all

[DHowett]

Sooo this is actually adjacent to a paste issue we had! You want \r or both \r\n.

[lhecker]

Should sendInput maybe just behave like ENABLE_PROCESSED_INPUT is enabled? Edit: Oh, but that might make sending precise inputs harder... hmm...

[zadjii-msft]

My thought is that InputStateMachineEngine::_DoControlCharacter attempts to translate \n to ctrl+j. But that doesn't seem like what's happening, because ctrl+j is bound to MenuComplete (at least, on my machine). I'd probably need to step through it more precisely.

Key	Function	Description
Ctrl+Enter	InsertLineAbove	Inserts a new empty line above the current line without attempting to execute the input

Now, that's pretty dang close to what we're seeing. That would also explain why nothing happens in CMD - ctrl+enter doesn't do anything there.

[HDJINJIN]

@