Configuring the ellipses of hidden threads

Configuring the ellipses of hidden threads

[Alexander Baier]

Hello!

With threading turned on, the summary buffer indicates children in a
hidden thread by appending "..." to the end of the summary line.  Is
there a way to change this string?  I would like to use an utf-8
ellipsis "…" instead.

Regards,
-- 
Alexander Baier

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Re: Configuring the ellipses of hidden threads

[Teemu Likonen]

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Alexander Baier [2015-10-15 10:59:42+02] wrote:

> With threading turned on, the summary buffer indicates children in a
> hidden thread by appending "..." to the end of the summary line. Is
> there a way to change this string? I would like to use an utf-8
> ellipsis "…" instead.

You can do that with display tables. Current buffer's display table is
in variable "buffer-display-table". It has a slot that controls how
invisible text is displayed. Perhaps this is does what you want:

    (add-hook 'gnus-summary-mode 'my-gnus-summary-mode-hook)

    (defun my-gnus-summary-mode-hook ()
      (set-display-table-slot buffer-display-table 'selective-display [?…]))

You see, there is a vector [?…] which sets the character(s). Three Ascii
dots would be [?. ?. ?.]. See info node "(elisp) Display Tables".

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Re: Configuring the ellipses of hidden threads

[Teemu Likonen]

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Teemu Likonen [2015-10-15 12:40:21+03] wrote:

> Perhaps this is does what you want:
>
>     (add-hook 'gnus-summary-mode 'my-gnus-summary-mode-hook)
>
>     (defun my-gnus-summary-mode-hook ()
>       (set-display-table-slot buffer-display-table 'selective-display [?…]))

And to turn it on/off everywhere (e.g. outline, org) refer to the
"standard-display-table" variable:

(set-display-table-slot standard-display-table 'selective-display [?…])

(set-display-table-slot standard-display-table 'selective-display nil)

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Re: Configuring the ellipses of hidden threads

[Alexander Baier]

On 2015-10-15 12:40 Teemu Likonen wrote:
> Alexander Baier [2015-10-15 10:59:42+02] wrote:
>
>> With threading turned on, the summary buffer indicates children in a
>> hidden thread by appending "..." to the end of the summary line. Is
>> there a way to change this string? I would like to use an utf-8
>> ellipsis "…" instead.
>
> You can do that with display tables. Current buffer's display table is
> in variable "buffer-display-table". It has a slot that controls how
> invisible text is displayed. Perhaps this is does what you want:
>
>     (add-hook 'gnus-summary-mode 'my-gnus-summary-mode-hook)
>
>     (defun my-gnus-summary-mode-hook ()
>       (set-display-table-slot buffer-display-table 'selective-display [?…]))
>
> You see, there is a vector [?…] which sets the character(s). Three Ascii
> dots would be [?. ?. ?.]. See info node "(elisp) Display Tables".

This works like a charm, thank you!  For future reference, it should be

  (add-hook 'gnus-summary-mode-hook 'my-gnus-summary-mode-hook)
                              ^^^^^
I believe.                              

Regards,
-- 
Alexander Baier

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Re: Configuring the ellipses of hidden threads

[Teemu Likonen]

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Alexander Baier [2015-10-15 17:28:20+02] wrote:

> For future reference, it should be
>
>   (add-hook 'gnus-summary-mode-hook 'my-gnus-summary-mode-hook)
>                               ^^^^^
> I believe.                              

Oh, it should, of course. Thanks for pointing out.

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