On Wed, Sep 20, 2023, 10:20 AM Oliver Kiddle <opk@zsh.org> wrote:

>
> I would guess that the cause of the "bug" is function wrappers being
> defined which wrap ifconfig and ip to apply colouring to their output.
>
> Any ideas?
>

If _call_program runs in a subshell, it could start with

unfunction -m '*'

That might be a bit violent, though.  Maybe a zstyle listing functions to
ignore?

Or should we just tell them to test something like [[ -t 1 ]] if they
> insist on writing wrappers for system utilities that add colour.
>

That would certainly be best practice.

>