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Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021
From: |
Paul W. Rankin |
Subject: |
Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021 |
Date: |
Wed, 24 Mar 2021 19:09:33 +1000 |
> On 24 Mar 2021, at 6:01 pm, Gregory Heytings <gregory@heytings.org> wrote:
>
>>>> No bugs here. Both of these work as expected. I think the issue is you're
>>>> confused about font-lock-mode and text properties. These are not the same
>>>> thing. Font-lock-mode is just one way to add text properties to text, so
>>>> may other functions. Deactivating font-lock-mode does not remove all text
>>>> properties, only on text with the `(fontified . t)' property. This is why
>>>> you're seeing what you're seeing.
>>>
>>> Please explain this to Stefan M, who considers this to be bugs, who would
>>> like to deprecate the font-lock-fontify-{buffer,block} commands, and who
>>> guided me to write the font-lock-update command.
>>
>> For sure. If you can, please link me to the lists.gnu.org message?
>>
>
> I'm curious how you will explain to the author of font-lock-fontify-buffer
> that his command has no bugs, when he thinks it has and would like to
> obsolete it. The first message is at
> https://lists.gnu.org/archive/html/emacs-devel/2021-03/msg00581.html .
Thanks for the link. I've looped in Stefan so he can tell me I'm wrong, but...
I think the issue you describe, where yanked text includes previous text
properties without font-lock-mode active is expected behaviour. You can control
this behaviour with the variable `yank-excluded-properties'. (Eli I'm surprised
you didn't use this?)
I think Stefan was commenting on how this behaviour might be unexpected, then
separately, also commenting on the messiness of the code in
`font-lock-fontify-buffer'. But the messiness of that code does not imply that
the way text properties work is a bug.
I'm pretty sure the idea is to have a cleaner version of
`font-lock-fontify-buffer' i.e. a duplicate, which is almost what you have.
> By the way, what actual problems do you see in font-lock-update? Do you see
> cases where it produces unexpected results?
Just the toggling part. The command is called `font-lock-update' but when
font-lock-mode is active and the command is called with ARG, it turns
font-lock-mode off. From the docstring I'm not sure if that was your intention?
Given this is a default key binding on the Holy ctl-x-map (technically the
ctl-x-x-map), it should probably do what it says on the tin.
Here's the same but what I'd consider a cleaner approach:
(defun font-lock-update ()
"Refontify the accessible portion of the buffer.
Unconditionally activate `font-lock-mode'."
(interactive)
(unless font-lock-mode (font-lock-mode 1))
(save-excursion
(font-lock-fontify-region (point-min) (point-max))))
Technically this is still a bit misleading because of teh aforementioned
`font-lock-dont-widen' variable, but we can't have everything.
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, (continued)
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/23
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/23
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/23
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/23
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021,
Paul W. Rankin <=
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Gregory Heytings, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Stefan Monnier, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Paul W. Rankin, 2021/03/24
- Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021, Stefan Monnier, 2021/03/24