[TUHS] Data structures in Unix editors

[John Cowan]

On Thu, Apr 1, 2021 at 5:26 PM Dave Horsfall <dave at horsfall.org> wrote:


> And oddly enough, BDB is exactly how I would have implemented it...  The
> basic datum is a line after all (I have no idea about EMACS, and don't
> want to know) so it makes sense to use a structure that can rapidly access
> arbitrary line numbers.
>

I'd use SQLite nowadays, because it takes extraordinary care to make sure
that no data is lost short of disk failure.  It is considerably more robust
than the underlying filesystem, and runs embedded in its process.  It also
means you can readily carry about arbitrary data in additional columns; for
example, you could make line marks persistent, including dot.



John Cowan          http://vrici.lojban.org/~cowan        cowan at ccil.org
Well, I have news for our current leaders and the leaders of tomorrow:
the Bill of Rights is not a frivolous luxury, in force only during
times of peace and prosperity.  We don't just push it to the side
when the going gets tough.  --Molly Ivins (pbuh)
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