Re: Shift selection using interactive spec

[Thomas Lord]

Lennart Borgman (gmail) wrote:
> Is this similar to the analogy below?
>
>   window-point / point
>   window-mark  / mark


I'm not sure exactly what you're asking but.. yeah, sorta-like
that.

In "traditional emacs" the "point" is always 0-width -- it is
always between two characters (or an end point of a buffer).

In all the GUIs, the "point" is usually 0-width but can be
wider.   Instead between being between two characters,
the point covers a (possibly empty) range of characters.
Rather than a mark-ring and implied region, these programs
use a "fat cursor" as their model of "selection".

So, I'm suggesting a variable "tentative-mark" and,
when not nil and set to a marker, the point is considered
to have non-0 width -- between the location (point) and
that marker.

And then yes:  because we think of the traditional (point)
as window-local, and because tentative-mark is essentially
just an extension to that traditional concept of the point,
then yes, tentative-mark should also have a window-local
binding. 

-t