Re: Differences in `ne` and `bp` line-breaking behavior

[onf]

On Mon Dec 2, 2024 at 7:19 PM CET, Tadziu Hoffmann wrote:
> > > I have discovered recently that `ne` and `bp` behave differently in
> > > regards to pending input lines. `bp` breaks such lines, while `ne`
> > > does not. In practice this means that `ne` does not behave like a
> > > conditional `bp` as one would reasonably expect.
> > 
> > I invented .ne 55 years ago and have never heard a complaint about its
> > design before. It is not a conditional .bp, because that would case a
> > line break, which .ne never does, nor should.
>
> Also, .ne need not have to do with page breaks.  It tests whether
> the required amount of space is available *before the next trap*,
> but that trap doesn't have to be an end-of-page trap.  It could
> be any trap set up for a specific purpose, in particular also
> a diversion trap.

Can you provide an example use of `ne` which relies on
the absence of a line break, please?

~ onf