Option to disable line-wise copy & cut

[hversteegzepp]

Problem

With the switch from CodeMirror 5 to CodeMirror 6, the option to enable/disable line-wise copying and cutting seems to have disappeared.
From looking at their documentation & codebase, apparently this is on the end of CM6 (the lineWiseCopyCut option from CM5 is no longer there, though I must say I also don't fully understand how different options for CM5 translate to CM6).
Personally, this is always an option that I disable as fast as I can in any editor, mainly to prevent overwriting my clipboard with an accidental Ctrl+C hit, for example if I just happen to miss Ctrl+V.
As an additional incredibly niche application, I also have some system-wide LaTeX-related macros set up that paste stuff like \left( \right) around selected text, which now include the whole line if nothing is selected, instead of leaving the middle empty.

Proposed Solution

I'm not sure if this is something that can be fixed on Jupyterlab's side, or if I need to take this to CodeMirror, but it would be really nice to have an option to disable line-wise copying & cutting again.

[krassowski]

I'm not sure if this is something that can be fixed on Jupyterlab's side

From a quick look at https://discuss.codemirror.net/t/make-linewise-copy-cut-configurable/3830/2 it sounds like we could have an optional logic which filters out things in DOM event handler of "copy". If you (or someone else) is wiling to contribute a pull request I would be happy to help with a review.

[hversteegzepp]

Thanks for the reply! Unfortunately I wouldn't even know where to start with something like this, but if someone else is willing to pick it up, I'd be more than grateful.