Built-in linux terminal crashes when pasting 39-character string into nano

[dcmills2]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.77.3
• OS Version: Ubuntu 20.04.6

Steps to Reproduce:

1. Launch VSCode on an Ubuntu computer (or on Windows using WSL)
2. Enter the built-in terminal
3. Run the command nano
4. Copy and paste the following 39-character string into nano: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
5. Result: nano shows the error message "Unknown Sequence". Can no longer interact with the terminal, need to kill it and open a new one

More details:

• nano version 4.8
• This does not happen in nano using an external terminal. Only in VSCode's built-in terminal
• This does not happen for any other length of string, even other multiples of 39
• This does not happen in other CLI text editors, such as vim

[samuelphy]

I can confirm this issue on Windows using WSL.

[supa-freak]

It happens with other 39 long strings as well. It also happens when not using WSL. Copying more characters solves the problem.
For us it also happens with multiples of 39 (e.g. 156 characters, line breaks included)

[Tyriar]

When trace logs are enabled this is the exact sequence we send:

"\u001b[200~aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\u001b[201~"

Compared to 1 less a:

"\u001b[200~aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\u001b[201~"

Note that the 200/201 wrapped around it is bracketed paste mode (which I just added a way to disable so that may help #189480). So this seems to be either a problem with one of nano, conpty or node-pty.

[addmitt]

I also just ran into this. I'm on Windows 10, using Remote - SSH plugin to connect to an Ubuntu 22.04 server. Right-click to paste in Nano, terminal locks up, have to Kill it. Add/remove one character from the string and try again, works.

[vscodenpa]

We closed this issue because we don't plan to address it in the foreseeable future. If you disagree and feel that this issue is crucial: we are happy to listen and to reconsider.

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