bug#15839: 24.3.50; `isearch-allow-scroll': be able to scroll point off screen temporarily

[Juri Linkov <juri@linkov.net>]

>> > I've now tried what you ended up installing, and I see
>> > that that's not the case (and that you removed the advice
>> > that you might need to set `lazy-highlight-buffer' to t
>> > to see highlighting when scrolling).
>> >
>> > What you installed does indeed seem to implement this
>> > enhancement.  Thank you for that, and sorry for not
>> > understanding and reacting negatively.
>>
>> Sorry for replying to a wrong comment when closing this request,
>> there are so many comments that I picked a wrong one.
>
> I understand.  I too am lost in several threads (not to mention work ;-)).
>
>> I completely implemented all points from your original request,
>> and this new feature works so well, that I already customized
>> `isearch-allow-scroll' to `unlimited' and started using it
>> even without enabling `lazy-highlight-buffer'.
>
> Yes, it works fine without `lazy-highlight-buffer', AFAICT.
>
> What happened to "This is very difficult to
> implement"? You seem to have silently (and
> quickly) solved that one somehow.

This is because I misunderstood what you described at first.
Later I realized what it's about.

>> BTW, regarding another feature that you helped to develop,
>> I just realized that the variable name `isearch-yank-on-move' is not
>> the best one.  I propose a better name `isearch-move-to-yank'.
>
> Sounds good.
>
> Except that "move to" has a connotation of moving
> to some place, e.g., move to a place where something
> was yanked or will be yanked.

I see, its ambiguity is like in `move-to-column'.

> What about something like `cursor-movement-yanks'
> or `movement-yanks' or `moving-yanks'?
>
> ---
>
> FWIW, all such names, including `move-to-yank' would
> be clearer with the RMS convention of having suffix
> `-flag'.
>
> That was the Emacs convention, until Stefan I think.
> I still follow it.  And I use suffix `-p' for a
> non-option variable.  (And yes, a Boolean variable
> can be thought of as a (nullary) predicate.)

Isn't the suffix `-p' allowed only for predicate functions?