Terminal: Pasting Still Badly Broken From Windows to Ubuntu: Extra Line Endings and Indents

[FlipperPA]

Environment

Windows build number: 10.0.19041.113
Windows Terminal version (if applicable): 0.9.433.0

Any other software? Ubuntu 18.04, mainly used for Python 3 development.

Steps to reproduce

Create a few lines of code in a text editor, such as Sublime or Notepad, and COPY it:

Result of pasting into a Terminal with an ipython shell open:

* NOTE THE EXTRA LINE FEEDS AND INDENTATION! *

Result of pasting into a Terminal with vi open:

* NOTE THE EXTRA LINE FEEDS AND INDENTATION! *

Result of pasting the same text buffer into PuTTY with an ipython shell open:

* It looks perfect! Beautiful! *

Result of pasting the same text buffer into PuTTY with the vi editor open:

* It looks perfect! Beautiful! *

The same behavior happens with emacs, pico, vim - not just vi and ipython.

Expected behavior

For the copied buffer to properly paste, like it does in PuTTY, without extra line endings and indents.

Please note that the same text buffer pasted into a PowerShell window works:

Actual behavior

See the above screenshots. I end up having to paste code from scratch text editors on Windows into Windows Terminal Preview line-by-line. This gets very old, very fast!

Thanks for your efforts, this is shaping up to be a great product. This is my one, huge, major pain point.

[zadjii-msft]

You know, I bet this is actually caused by bracketed paste mode. @DHowett-MSFT can probably confirm my suspicion, since he's the expert in that area

[DHowett-MSFT]

So, I copied this out of notepad;

[DHowett-MSFT]

But come to think of it, yes, @zadjii-msft is totally right here. Vi and ipython (probably) request "bracketed paste" mode -- it's a mode that lets the receiving application know that it's receiving a pasted block of text, and it can use that to defer processing the pasted text. Since we don't support it, ipython and vi are immediately processing the pasted text as though the user typed it.

Vim usually uses it to :set paste (which will suppress indentation, among other things).

That'll make this a /dup of #395

[msftbot[bot]]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!