describe all faces at point?

describe all faces at point?

[Sam Steingold]

Hi,
When I do `M-x describe-face`, the default face is, according to the doc,
> "the faces of the character after point"

However, looking at the `*Fancy Diary Entries*` buffer, I see many
different colors, and `M-x describe-face` offers the `diary-button` as
the default for _some_ characters that have _different_ colors (and the
`sample` in the `*Help*` buffer for one of them does _not_ match its
appearance).

Moreover, `(get-char-property (point) 'face)` returns `diary-button` for
both of those characters and `(face-at-point nil t)` returns
`(diary-button)` for them too.

So, how come two characters in the same buffer have different colors but
the same faces?

(see also https://emacs.stackexchange.com/q/73791/795)
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Re: describe all faces at point?

[Emanuel Berg]

Sam Steingold wrote:

> When I do `M-x describe-face`, the default face is, according to the doc,
> "the faces of the character after point"

Try this,

(defun what-face (pos)
  (interactive "d")
  (let ((face (or (get-char-property pos 'face)
                  (get-char-property pos 'read-cf-name) )))
    (message (format "%s" (or face "no face!"))) ))

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Re: describe all faces at point?

[Eli Zaretskii]

> From: Sam Steingold <sds@gnu.org>
> Date: Fri, 23 Sep 2022 10:50:41 -0400
> 
> When I do `M-x describe-face`, the default face is, according to the doc,
> > "the faces of the character after point"
> 
> However, looking at the `*Fancy Diary Entries*` buffer, I see many
> different colors, and `M-x describe-face` offers the `diary-button` as
> the default for _some_ characters that have _different_ colors (and the
> `sample` in the `*Help*` buffer for one of them does _not_ match its
> appearance).
> 
> Moreover, `(get-char-property (point) 'face)` returns `diary-button` for
> both of those characters and `(face-at-point nil t)` returns
> `(diary-button)` for them too.
> 
> So, how come two characters in the same buffer have different colors but
> the same faces?

The appearance of a character on display in Emacs gets the face
information from more than a single source, see the node "Displaying
Faces" in the ELisp reference manual for the gory details.

If you tell how does one get the "*Fancy Diary Entries*" buffer with
what you see there, I could perhaps give a more concrete answer to
your question.