Re: Moving point around empty overlays with 'after-text

[Platon Pronko]

On 2023-04-10 13:35, tomas@tuxteam.de wrote:
> For non-zero width overlays, it is quite easy to have
> point to each side of the overlay's "border": it depends
> on which side you are coming from. For me, at least, it
> is intuitive.

Does it work that way for you? For me the default non-propertized overlay 
always shows the cursor at the end, regardless of which direction I arrived 
from.

Here's the test file I used:

```
ABEF

(defun test-overlay-cursor (completion pt)
  (remove-overlays)
  (save-excursion
    (let* ((p-completion (propertize completion 'face 'error))
           (ov (make-overlay pt pt nil t t)))
      (overlay-put ov 'display "")
      (overlay-put ov 'after-string p-completion)))
  (goto-char 0))
(test-overlay-cursor "CD" 3)
```

I can navigate so I see "AB{CD}<cursor>EF" or "A<cusor>B{CD}EF", but I can't get the cursor to 
be before the overlay: "AB<cursor>{CD}EF".

Of course one can add properties to the overlay to get the cursor be positioned 
always in front, but then you can't get to show it at end.

The main point of the discussion is that it would be nice if it would be possible use usual navigation commands 
to get from "AB<cusror>{CD}EF" to "AB{CD}<cusor>EF".

--
Best regards,
Platon Pronko
PGP 2A62D77A7A2CB94E