Follow-up Comment #2, bug #66442 (group groff): [comment #0 original submission:] > While I agree with the premise that accumulation of display space is > undesirable, the solution for that problem,
The most generous concession I've ever heard you make on any subject! Bravo!
Unfortunately you then regress immediately to your mean and remain there.
> as implemented under bug #62688, (and as you've already observed), was naïve
> in the extreme.
That's me, shittiest programmer ever.
> You did make an attempt to redress this, under bug #64005. Unfortunately, the
> damage inflicted under bug #64688 was _much_ more extensive, and insidious,
> than that identified in bug #64005;
I get it. You can no longer sit back and allow Communist infiltration,
Communist indoctrination, Communist subversion, and the international
Communist conspiracy to sap and impurify all of your precious vertical space.
Let's return to the summary: "Change due to #62688 wrecks vertical spacing
model".
Ooh, the vertical spacing *model*. Fancy. Where is this model expressed in
ms documentation? In Lesk 1978? In Tuthill 1983? Neither?
No, don't say "in {Seventh Edition,PWB,4.2BSD} tmac.s"--that's an
_implementation_, not a model. And while one can extrapolate a (possibly
incomplete) model from an implementation, doing so mandates bug-compatibile,
pixel-identical results to the implementation in question, which is an
anti-goal of _groff ms_ (consider the problem of non-identical fonts).
[https://lists.endsoftwarepatents.org/archive/html/groff/2022-07/msg00000.html
This was all hashed out extensively in a 2022 thread.]
Moreover, Bill Tuthill already broke any such contract based on Seventh
Edition _ms_ when he introduced the `DD` register in the first place.
The "model" here is, I surmise, your personal mental construct of _ms_
behavior, which you arrogantly presume to be binding on everyone else. If
it's so impressively correct, you should have little trouble expressing that
construct in a formal grammar that can be machine-checked. I look forward to
your contribution.
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