Mostly curtail font-lock-mode

Mostly curtail font-lock-mode

[Vasilii Kolobkov]

I had font-lock-mode disabled for most of the major modes (sans
whitelist in font-lock-global-modes), but ran into a problem.

rcirc-track-minor-mode highlights some notification in its mode line
display by setting a `font-lock-face' text property.  And it seem to
have no effect if the font-lock mode is disabled.

Now i wonder what would be the most effective way to disable most of the
work font-lock would do (e.g. figuring out the syntax structures), but
still have it nominally enabled so that i could make use of it in the
mode line?  Any hints on general direction to do it would be very much
appreciated!

Re: Mostly curtail font-lock-mode

[Emanuel Berg via Users list for the GNU Emacs text editor]

Vasilii Kolobkov wrote:

> rcirc-track-minor-mode

What do you know (not much), never heard of an Emacs IRC user
that didn't do ERC...

> Now i wonder what would be the most effective way to disable
> most of the work font-lock would do (e.g. figuring out the
> syntax structures), but still have it nominally enabled so
> that i could make use of it in the mode line? Any hints on
> general direction to do it would be very much appreciated!

I don't know, does it come with its own faces? You can disable
them one by one but if it doesn't - implement faces
that inherit? Much work for little gain, perhaps?

But OTOH what is a mode without faces? On the third hand if
this is a minor mode then perhaps it shouldn't.

Is there a policy what should have its own faces and not?

-- 
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http://user.it.uu.se/~embe8573
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Re: Mostly curtail font-lock-mode

[Vasilii Kolobkov]

Emanuel Berg via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

> What do you know (not much), never heard of an Emacs IRC user
> that didn't do ERC...

It's a nice small piece of software!

>> Now i wonder what would be the most effective way to disable
>> most of the work font-lock would do (e.g. figuring out the
>> syntax structures), but still have it nominally enabled so
>> that i could make use of it in the mode line? Any hints on
>> general direction to do it would be very much appreciated!
>
> I don't know, does it come with its own faces? You can disable
> them one by one but if it doesn't - implement faces
> that inherit? Much work for little gain, perhaps?

I might've expressed myself a bit clumsy - my intent is to keep
font-lock working for the sake of mode line formatting and not the
buffer content.

E.g. i might customize all the faces used in modes i don't want
fontified to be same as `default' and thus have the desired visual
effect, but then there would still be a lot of work wasted by fontifying
everything with the same face.

rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Tassilo Horn]

Vasilii Kolobkov <vasilii@orangeshoelaces.net> writes:

>> What do you know (not much), never heard of an Emacs IRC user that
>> didn't do ERC...
>
> It's a nice small piece of software!

I wholeheartedly agree!

Bye,
Tassilo

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Emanuel Berg via Users list for the GNU Emacs text editor]

Tassilo Horn wrote:

>>> What do you know (not much), never heard of an Emacs IRC
>>> user that didn't do ERC...
>>
>> It's a nice small piece of software!
>
> I wholeheartedly agree!

OK? Do tell (more) or you just gonna blow your own ... horn?

-- 
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Tassilo Horn]

Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> writes:

>>>> What do you know (not much), never heard of an Emacs IRC
>>>> user that didn't do ERC...
>>>
>>> It's a nice small piece of software!
>>
>> I wholeheartedly agree!
>
> OK? Do tell (more) or you just gonna blow your own ... horn?

I can't quite parse that sentence but I like rcirc because it has all
IRC features I need (multiple servers, auto-join, nickserv support,
activity tracking), looks nice (especially with rcirc-color from ELPA),
and is easy to set-up.

Bye,
Tassilo

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Eduardo Ochs]

On Fri, 26 Feb 2021 at 19:50, Tassilo Horn <tsdh@gnu.org> wrote:
>
> Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> writes:
>
> > OK? Do tell (more) or you just gonna blow your own ... horn?
>
> I can't quite parse that sentence but I like rcirc because it has all
> IRC features I need (multiple servers, auto-join, nickserv support,
> activity tracking), looks nice (especially with rcirc-color from ELPA),
> and is easy to set-up.
>
> Bye,
> Tassilo

Same here, but rcirc doesn't have support for SASL and sometimes I
wish it had... =|

  Eduardo Ochs
    http://angg.twu.net/#eev
    http://angg.twu.net/eev-intros/find-rcirc-intro.html

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Emanuel Berg via Users list for the GNU Emacs text editor]

Tassilo Horn wrote:

> activity tracking

What's that?

We have that on ERC?

-- 
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Tassilo Horn]

Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> writes:

>> activity tracking
>
> What's that?

A mode-line indicator showing the channels with activity since last time
you visited the buffer (and different faces depending on kind of
activity, i.e., big fat face when you've been mentioned) paired with
keybindings to switch to irc buffers with activity.

> We have that on ERC?

I think so.

Bye,
Tassilo

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Emanuel Berg via Users list for the GNU Emacs text editor]

Tassilo Horn wrote:

>>> activity tracking
>>
>> What's that?
>
> A mode-line indicator showing the channels with activity
> since last time you visited the buffer (and different faces
> depending on kind of activity, i.e., big fat face when
> you've been mentioned) paired with keybindings to switch to
> irc buffers with activity.

Right, nah, disruptive, but useful for big channels perhaps,
like #emacs on freenode and such.

-- 
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Emanuel Berg via Users list for the GNU Emacs text editor]

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Tassilo Horn wrote:

> looks nice

We have that on ERC?

  https://dataswamp.org/~incal/figures/emacs/erc-gnus.png

damn, site down.

Does this work?


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-- 
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Tassilo Horn]

Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> writes:

>> looks nice
>
> We have that on ERC?
>
>   https://dataswamp.org/~incal/figures/emacs/erc-gnus.png
>
> Does this work?

What?  A fontified banner?  I don't know and I don't care.  A thing
where I like rcirc better is how messages are indented.  I think in ERC
it looks like

--8<---------------cut here---------------start------------->8---
    user: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed
          do eiusmod tempor incididunt ut labore et dolore magna
          aliqua. Nullam vehicula ipsum a arcu cursus. Ac tortor
          dignissim convallis aenean et tortor at risus
          viverra. Convallis posuere morbi leo urna.
longuser: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed
          do eiusmod tempor incididunt ut labore et dolore magna
          aliqua. Nullam vehicula ipsum a arcu cursus. Ac tortor
          dignissim convallis aenean et tortor at risus
          viverra. Convallis posuere morbi leo urna.
--8<---------------cut here---------------end--------------->8---

whereas it looks like this in rcirc:

--8<---------------cut here---------------start------------->8---
user: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
      eiusmod tempor incididunt ut labore et dolore magna aliqua. Nullam
      vehicula ipsum a arcu cursus. Ac tortor dignissim convallis aenean
      et tortor at risus viverra. Convallis posuere morbi leo urna.
longuser: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed
          do eiusmod tempor incididunt ut labore et dolore magna
          aliqua. Nullam vehicula ipsum a arcu cursus. Ac tortor
          dignissim convallis aenean et tortor at risus
          viverra. Convallis posuere morbi leo urna.
--8<---------------cut here---------------end--------------->8---

Of course, that's just a personal preference, and probably you can
configure that behavior in ERC anyhow.

Bye,
Tassilo

Re: rcirc vs ERC (was: Mostly curtail font-lock-mode)

[Emanuel Berg via Users list for the GNU Emacs text editor]

Tassilo Horn wrote:

>>> looks nice
>>
>> We have that on ERC?
>>
>>   https://dataswamp.org/~incal/figures/emacs/erc-gnus.png
>>
>> Does this work?
>
> What? A fontified banner? I don't know and I don't care.

Ha, no, I meant the URL. I couldn't get there but it seemed
you got it.

But you mention a fair point. Your client is possibly
under-featured with respect to fortified banners not the
least...

> indented. I think in ERC it looks like
>
>     user: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed
>           do eiusmod tempor incididunt ut labore et dolore magna
>           aliqua. Nullam vehicula ipsum a arcu cursus. Ac tortor
>           dignissim convallis aenean et tortor at risus
>           viverra. Convallis posuere morbi leo urna.
> longuser: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed
>           do eiusmod tempor incididunt ut labore et dolore magna
>           aliqua. Nullam vehicula ipsum a arcu cursus. Ac tortor
>           dignissim convallis aenean et tortor at risus
>           viverra. Convallis posuere morbi leo urna.

That's erc-fill-static in erc-fill-function. But "Original
value was actually ‘erc-fill-variable’"

> whereas it looks like this in rcirc:
>
> user: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
>       eiusmod tempor incididunt ut labore et dolore magna aliqua. Nullam
>       vehicula ipsum a arcu cursus. Ac tortor dignissim convallis aenean
>       et tortor at risus viverra. Convallis posuere morbi leo urna.
> longuser: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed
>           do eiusmod tempor incididunt ut labore et dolore magna
>           aliqua. Nullam vehicula ipsum a arcu cursus. Ac tortor
>           dignissim convallis aenean et tortor at risus
>           viverra. Convallis posuere morbi leo urna.
>
> Of course, that's just a personal preference, and probably
> you can configure that behavior in ERC anyhow.

Hm, interesting, I also think that is better!

Can you find it here?

erc-fill-function is a variable defined in ‘erc-fill.el’.
Its value is ‘erc-fill-static’
Original value was ‘erc-fill-variable’

  This variable may be risky if used as a file-local variable.
  You can customize this variable.

Documentation:
Function to use for filling messages.

Variable Filling with an ‘erc-fill-prefix’ of nil:

<shortnick> this is a very very very long message with no
	    meaning at all

Variable Filling with an ‘erc-fill-prefix’ of four spaces:

<shortnick> this is a very very very long message with no
    meaning at all

Static Filling with ‘erc-fill-static-center’ of 27:

		<shortnick> foo bar baz
	 <a-very-long-nick> foo bar baz quuuuux
		<shortnick> this is a very very very long message with no
			    meaning at all

These two styles are implemented using ‘erc-fill-variable’ and
‘erc-fill-static’.  You can, of course, define your own filling
function.  Narrowing to the region in question is in effect while your
function is called.

-- 
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal

Re: Mostly curtail font-lock-mode

[Emanuel Berg via Users list for the GNU Emacs text editor]

Vasilii Kolobkov wrote:

> E.g. i might customize all the faces used in modes i don't
> want fontified to be same as `default' and thus have the
> desired visual effect, but then there would still be a lot
> of work wasted by fontifying everything with the same face.

Okaay... if that's how it works, then yes. Maybe.

What do you use to set the faces?

But on the whole, I think the three way split decision is
either you want all of it - do nothing, or you want some of it
- configure it, or you don't want it - disable.

You can configure the mode line to act upon that mode, tho,
like this [last]. A lot of work I suspect and unexpected work
and even inelegant code (worst) for this minimal gain if even
that - so this Elisp is for display purposes ONLY -

  https://dataswamp.org/~incal/emacs-init/mode-line.el

-- 
underground experts united
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https://dataswamp.org/~incal