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bug#30792: 26.0.91; improve docstring of with-help-window

From: Eli Zaretskii
Subject: bug#30792: 26.0.91; improve docstring of with-help-window
Date: Wed, 14 Mar 2018 18:18:27 +0200

> Date: Wed, 14 Mar 2018 09:14:33 +0100
> From: martin rudalics <address@hidden>
> CC: address@hidden
>  >> It strikes me that instead of repeating most of what
>  >> with-temp-buffer-window's doc string says, it might be better to
>  >> simply refer to there.  Like this:
>  >>
>  >>    Display the output produced by evaluating BODY, like
>  >>    `with-temp-buffer-window' does, then put the window in
>  >>    `help-mode' [...]
> Neither `with-temp-buffer-window' nor `help-mode' are of any relevance
> here.

??? with-help-window is a thin wrapper around with-temp-buffer-window.

> The distinctive aspect of `with-help-window' is provided by
> `help-window-setup' which sets up the help window for quitting it
> later.

Indeed, which is why I think the modified doc string should keep the
part of the existing doc string which tells about this special setup.

>  > +This construct is like `with-current-buffer-window' but unlike that
> IIUC it does not make the buffer current when running BODY.

I think the reference to with-current-buffer-window is a copy/paste
mistake, it should instead refer to with-temp-buffer-window.

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