I don't recall BDS C having an editor but I could be wrong. They pushed Mark of the Unicorn's MINCE (mince is not complete emacs) and scribble, a scribe mini-clone. BDS was a one man shop, it stood for brain-damaged software.

On Fri, Nov 4, 2022, 9:40 PM Larry McVoy <lm@mcvoy.com> wrote:
On Fri, Nov 04, 2022 at 06:25:03PM -0700, Bakul Shah wrote:
> On Nov 4, 2022, at 6:02 PM, Larry McVoy <lm@mcvoy.com> wrote:
> >
> > I also got a little corrupted by whatever editor came with BDS C
>
> I think that was wordstar. I had to retrain my fingers when I
> switched to vi! I used SOS, edt(?) on Tops-10, edit(?) on CMS,
> teco (on ITS), wordstar (on CP/M), ed, vi, rand editor, acme.
> Now I stick to nvi & acme. And cat for small programs/files.

I used wordstar but I think BDS C had their own thing.  Wordstar
was different.
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Larry McVoy           Retired to fishing          http://www.mcvoy.com/lm/boat