From: Dmitry Gutov <dgutov@yandex.ru>
To: Eli Zaretskii <eliz@gnu.org>
Cc: acm@muc.de, monnier@iro.umontreal.ca, emacs-devel@gnu.org
Subject: Re: master 7362554: Widen around c-font-lock-fontify-region. This fixes bug #38049.
Date: Thu, 14 Nov 2019 16:35:14 +0200 [thread overview]
Message-ID: <9eff0b15-b8d0-5340-230e-47eed7cf63cb@yandex.ru> (raw)
In-Reply-To: <83blte5y61.fsf@gnu.org>
On 14.11.2019 16:29, Eli Zaretskii wrote:
>> From: Dmitry Gutov <dgutov@yandex.ru>
>> Date: Thu, 14 Nov 2019 16:05:13 +0200
>> Cc: Alan Mackenzie <acm@muc.de>, emacs-devel@gnu.org
>>
>> The hope is that calling vertical-motion (or font-lock-ensure directly)
>> inside narrowing is a rare occasion
>
> Why do we need to have such hopes?
For starters, because it's the current expectation of mmm-mode. :-)
That's selfish, I know. But the counter-examples are sufficiently rare.
> The reality could be different,
> and I'd like us to support those different conditions. It doesn't
> sound like it's much harder.
There are options, sure. But I think all of them will require explicit
support from major modes. Like adding a new element to
prog-indentation-context, which will be a function which either returns
new narrowing bounds or does the narrowing itself. And then the major
mode will have to make sure to use it everywhere.
This particular case is annoying because it seems to mean that the
(widen) call in font-lock-default-fontify-buffer doesn't help, and a lot
of font-lock-keywords matchers will need to call (widen) anyway.
next prev parent reply other threads:[~2019-11-14 14:35 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191109144026.20810.76129@vcs0.savannah.gnu.org>
[not found] ` <20191109144027.DDC3720927@vcs0.savannah.gnu.org>
2019-11-11 16:52 ` master 7362554: Widen around c-font-lock-fontify-region. This fixes bug #38049 Dmitry Gutov
2019-11-11 20:34 ` Alan Mackenzie
2019-11-12 13:36 ` Dmitry Gutov
2019-11-13 21:19 ` Alan Mackenzie
2019-11-13 22:33 ` Dmitry Gutov
2019-11-14 13:42 ` Stefan Monnier
2019-11-14 14:05 ` Dmitry Gutov
2019-11-14 14:29 ` Eli Zaretskii
2019-11-14 14:35 ` Dmitry Gutov [this message]
2019-11-14 14:48 ` Eli Zaretskii
2019-11-14 14:50 ` Dmitry Gutov
2019-11-14 16:08 ` Eli Zaretskii
2019-11-14 21:07 ` Dmitry Gutov
2019-11-15 9:31 ` Eli Zaretskii
2019-11-15 10:24 ` Dmitry Gutov
2019-11-15 13:00 ` Eli Zaretskii
2019-11-14 13:49 ` Eli Zaretskii
2019-11-14 14:08 ` Dmitry Gutov
2019-11-14 14:37 ` Dmitry Gutov
2019-11-14 14:55 ` Stefan Monnier
2019-11-14 15:02 ` Dmitry Gutov
2019-11-14 15:33 ` Stefan Monnier
2019-11-14 16:12 ` Eli Zaretskii
2019-11-14 18:51 ` Stefan Monnier
2019-11-14 19:19 ` Eli Zaretskii
2019-11-14 19:48 ` Dmitry Gutov
2019-11-14 19:56 ` Eli Zaretskii
2019-11-14 19:59 ` Dmitry Gutov
2019-11-15 7:34 ` Eli Zaretskii
2019-11-15 7:52 ` Dmitry Gutov
2019-11-14 21:29 ` Stefan Monnier
2019-11-14 21:46 ` Dmitry Gutov
2019-11-15 9:36 ` Eli Zaretskii
2019-11-15 10:26 ` Dmitry Gutov
2019-11-15 23:27 ` Stefan Monnier
2019-11-16 8:02 ` Eli Zaretskii
2019-11-17 0:50 ` Stefan Monnier
2019-11-17 3:33 ` Eli Zaretskii
2019-11-17 7:36 ` Dmitry Gutov
2019-11-17 15:44 ` Eli Zaretskii
2019-11-17 17:59 ` Dmitry Gutov
2019-11-17 18:26 ` Eli Zaretskii
2019-11-17 18:35 ` Dmitry Gutov
2019-11-14 19:58 ` Dmitry Gutov
2019-11-14 21:24 ` Several Major Modes. [Was: master 7362554: Widen around c-font-lock-fontify-region. This fixes bug #38049.] Alan Mackenzie
2019-11-14 22:11 ` Dmitry Gutov
2019-11-15 20:10 ` Several Major Modes Alan Mackenzie
2019-11-15 21:45 ` Dmitry Gutov
2019-11-16 13:10 ` Alan Mackenzie
2019-11-17 12:48 ` Dmitry Gutov
2019-11-17 16:03 ` Alan Mackenzie
2019-11-17 21:56 ` Dmitry Gutov
2019-11-14 13:35 ` master 7362554: Widen around c-font-lock-fontify-region. This fixes bug #38049 Eli Zaretskii
2019-11-15 22:43 ` Dmitry Gutov
2019-11-14 12:02 ` Eli Zaretskii
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