From: Alan Mackenzie <acm@muc.de>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: Is there something like `on-display-functions'?
Date: Fri, 29 Jan 2010 19:17:37 +0000 [thread overview]
Message-ID: <20100129191737.GE3272@muc.de> (raw)
In-Reply-To: <jwv4om4lr4p.fsf-monnier+emacs@gnu.org>
HI, Stefan,
On Fri, Jan 29, 2010 at 01:13:42PM -0500, Stefan Monnier wrote:
> > jit-lock-register's function only gets called when font lock is
> > enabled,
> No: jit-lock has nothing to do with font-lock, except for the fact that
> font-lock is its main client (and that historically jit-lock was
> written only for font-lock), so it's naturally tuned towards serving
> font-lock better than other potential clients.
Is this nothing-to-do-with-ness documented anywhere? In the elisp
manual, jit-lock is found twice, both occurrences in "Other Font Lock
Variables". Without reading the source code in great detail, you'd be
hard pressed to find out that the jit-lock mechanism is operative when
font-lock mode is disabled.
> I.e. jit-lock-register's function will be called regardless of whether
> font-lock is enabled or not.
> > or at least that's what the fine manual says and the doc string
> > implies.
> The docstring doesn't mention font-lock.
It mentions "fontification". Isn't that a synonym for font-lock? Or is
it the part of redisplay that converts characters into glyphs and pixels,
regardless of whether font-lock is enabled?
jit-lock-register says that FUN is "registered as a fontification
function". I think Somebody (tm) could usefully separate out jit-lock
from font-lock in the doc strings and manual.
Just as a matter of interest, how does jit-lock know the END parameter
which it passes to FUN? Or is this just a random value, a few hundred
bytes after BEG?
> Stefan
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2010-01-29 19:17 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-27 13:57 Is there something like `on-display-functions'? Alan Mackenzie
2010-01-27 13:53 ` Lennart Borgman
2010-01-27 14:55 ` Alan Mackenzie
2010-01-27 15:11 ` Stefan Monnier
2010-01-27 15:37 ` Alan Mackenzie
2010-01-27 17:44 ` Eli Zaretskii
2010-01-27 19:24 ` Stefan Monnier
2010-01-27 20:08 ` Eli Zaretskii
2010-01-27 21:04 ` Stefan Monnier
2010-01-28 6:49 ` Eli Zaretskii
2010-01-28 19:37 ` Stefan Monnier
2010-01-28 20:53 ` Eli Zaretskii
2010-01-28 23:12 ` Stefan Monnier
2010-01-29 9:09 ` Eli Zaretskii
2010-01-29 18:08 ` Stefan Monnier
2010-01-28 6:55 ` Eli Zaretskii
2010-01-28 10:38 ` Alan Mackenzie
2010-01-28 12:54 ` Eli Zaretskii
2010-01-28 14:47 ` Alan Mackenzie
2010-01-28 19:18 ` Eli Zaretskii
2010-01-29 13:09 ` Alan Mackenzie
2010-01-28 19:37 ` Stefan Monnier
2010-01-29 13:17 ` Alan Mackenzie
2010-01-29 18:13 ` Stefan Monnier
2010-01-29 19:17 ` Alan Mackenzie [this message]
2010-01-30 21:02 ` Stefan Monnier
2010-01-27 17:55 ` Eli Zaretskii
2010-01-28 10:27 ` Alan Mackenzie
2010-01-28 11:30 ` Doc patch for `fontification-functions': [was: Is there something like `on-display-functions'?] Alan Mackenzie
2010-01-28 15:34 ` Doc patch for `fontification-functions': Chong Yidong
2010-01-28 16:40 ` Alan Mackenzie
2010-01-28 18:38 ` Doc patch for `fontification-functions': [was: Is there something like `on-display-functions'?] Eli Zaretskii
2010-01-28 19:44 ` Doc patch for `fontification-functions': Stefan Monnier
2010-01-27 14:16 ` Is there something like `on-display-functions'? alin.s
2010-01-27 14:27 ` David Kastrup
2010-01-27 15:20 ` Alan Mackenzie
2010-01-27 16:31 ` Stephen J. Turnbull
2010-01-27 14:59 ` Davis Herring
2010-01-28 1:41 ` Daniel Colascione
2010-01-28 10:14 ` Alan Mackenzie
2010-01-28 19:39 ` Stefan Monnier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100129191737.GE3272@muc.de \
--to=acm@muc.de \
--cc=eliz@gnu.org \
--cc=emacs-devel@gnu.org \
--cc=monnier@IRO.UMontreal.CA \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).