From: Richard Stallman <rms@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: psainty@orcon.net.nz, luangruo@yahoo.com,
kevin.legouguec@gmail.com, emacs-devel@gnu.org
Subject: Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?
Date: Sat, 29 Jan 2022 23:17:21 -0500 [thread overview]
Message-ID: <E1nE1eT-0006oH-WB@fencepost.gnu.org> (raw)
In-Reply-To: <83o83wc7gs.fsf@gnu.org> (message from Eli Zaretskii on Fri, 28 Jan 2022 15:31:31 +0200)
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> > Since my terminal handles many of those characters, they work ok for
> > me. But there are some it does not support. Many Vietnamese
> > characters, for instance.
> >
> > If this feature is implemented to handle ligatures, it could handle
> > the letters with diacritics too. That would be as easy as populating
> > the table of the sequences they stand for.
> IIUC what you mean by "this feature", we already have that in
> latin1-disp.el.
It is the same general idea, but (according to the comments at the
start) it handles only the characters in the ISO 8859 character sets.
It should handle all the Unicode characters that could sensibly be
represented as characters to be composed, including ligatures and all
Latin and Greek characters with diacritics. Maybe some others can be
handled too.
I customized the variable to enable that mode but I don't know how to make it actually do
anything. Maybe it needs something else to truly enable it.
I inserted ẵ (latin small letter a with breve and tilde); it does not
do anything special to that.
> Given the enormously large number of such sequences, I doubt that
> terminfo is the right means for determining which sequences are
> supported. We have a solution for the Linux console,
We do? What is it?
> and for the rest
> we allow the user to customize the value of auto-composition-mode to
> disable it if the terminal misbehaves with these sequences.
We are talking about different issues. I am talking about how to display
complex characters _in the buffer_. NOT generated by auto-composition.
I don't think auto-composition does anything in my Emacs. If I insert
an f and an i in the buffer, they display as two characters, f followed by i.
Not as a ligature.
--
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)
next prev parent reply other threads:[~2022-01-30 4:17 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-19 4:15 Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it? Richard Stallman
2022-01-19 4:47 ` Po Lu
2022-01-19 10:05 ` Phil Sainty
2022-01-19 11:43 ` Eli Zaretskii
2022-01-21 4:13 ` Richard Stallman
2022-01-21 7:49 ` Eli Zaretskii
2022-01-22 4:37 ` Richard Stallman
2022-01-22 6:58 ` Eli Zaretskii
2022-01-24 4:33 ` Richard Stallman
2022-01-24 5:06 ` Po Lu
2022-01-25 4:17 ` Richard Stallman
2022-01-25 4:58 ` Po Lu
2022-01-24 12:14 ` Eli Zaretskii
2022-01-25 4:16 ` Richard Stallman
2022-01-25 6:35 ` Eli Zaretskii
2022-01-25 12:12 ` Eli Zaretskii
2022-01-25 4:16 ` New feature: displaying ligature characters in the buffer Richard Stallman
2022-01-25 6:31 ` Eli Zaretskii
2022-01-27 4:12 ` Richard Stallman
2022-01-27 7:58 ` Eli Zaretskii
2022-01-25 11:08 ` Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it? Kévin Le Gouguec
2022-01-25 12:38 ` Eli Zaretskii
2022-01-26 3:39 ` Richard Stallman
2022-01-26 5:38 ` Eli Zaretskii
2022-01-28 13:04 ` Richard Stallman
2022-01-28 13:31 ` Eli Zaretskii
2022-01-30 4:17 ` Richard Stallman [this message]
2022-01-30 7:36 ` Eli Zaretskii
2022-01-31 4:02 ` Richard Stallman
2022-01-31 13:05 ` Eli Zaretskii
2022-02-01 5:06 ` Richard Stallman
2022-02-01 14:57 ` Eli Zaretskii
2022-02-02 3:58 ` Richard Stallman
2022-02-02 12:28 ` Eli Zaretskii
2022-02-03 4:23 ` Richard Stallman
2022-02-03 7:53 ` Eli Zaretskii
2022-02-03 8:16 ` Yuri Khan
2022-02-03 9:26 ` Eli Zaretskii
2022-02-04 3:52 ` Richard Stallman
2022-02-04 4:56 ` Yuri Khan
2022-02-06 4:13 ` Richard Stallman
2022-02-04 8:10 ` Eli Zaretskii
2022-02-06 4:13 ` Richard Stallman
2022-02-03 20:28 ` Tomas Hlavaty
2022-02-04 7:07 ` Eli Zaretskii
2022-02-05 4:20 ` Richard Stallman
2022-02-05 13:55 ` Tomas Hlavaty
2022-02-05 14:06 ` Eli Zaretskii
2022-02-05 14:12 ` Eli Zaretskii
2022-02-06 1:29 ` Tomas Hlavaty
2022-02-06 8:30 ` Eli Zaretskii
2022-02-06 10:38 ` Tomas Hlavaty
2022-02-06 10:44 ` Eli Zaretskii
2022-02-06 10:54 ` Andreas Schwab
2022-02-06 1:10 ` Tomas Hlavaty
2022-02-06 4:16 ` Richard Stallman
2022-02-06 4:16 ` Richard Stallman
2022-02-06 11:29 ` Tomas Hlavaty
2022-02-04 3:52 ` Richard Stallman
2022-02-04 8:03 ` Eli Zaretskii
2022-02-06 4:13 ` Richard Stallman
2022-02-06 8:56 ` Eli Zaretskii
2022-02-07 5:11 ` Richard Stallman
2022-02-07 13:16 ` Eli Zaretskii
2022-02-08 3:55 ` Richard Stallman
2022-02-08 12:20 ` Eli Zaretskii
2022-02-09 4:06 ` Richard Stallman
2022-02-09 13:50 ` Eli Zaretskii
2022-02-10 3:57 ` Richard Stallman
2022-02-10 6:26 ` Eli Zaretskii
2022-02-12 3:57 ` Richard Stallman
2022-02-12 7:36 ` Eli Zaretskii
2022-02-14 4:13 ` Richard Stallman
2022-02-14 12:07 ` Eli Zaretskii
2022-02-15 4:33 ` Richard Stallman
2022-02-15 13:32 ` Eli Zaretskii
2022-02-16 4:14 ` Richard Stallman
2022-02-16 12:10 ` Eli Zaretskii
2022-02-19 4:54 ` Richard Stallman
2022-02-12 20:10 ` Tomas Hlavaty
2022-02-14 4:14 ` Richard Stallman
2022-01-26 8:20 ` Andreas Schwab
2022-01-27 4:13 ` Richard Stallman
2022-01-27 6:39 ` Eli Zaretskii
2022-01-27 8:13 ` Kévin Le Gouguec
2022-01-27 9:55 ` Eli Zaretskii
2022-01-27 10:29 ` Eli Zaretskii
2022-01-27 17:36 ` Kévin Le Gouguec
2022-01-27 18:38 ` Eli Zaretskii
2022-01-20 3:17 ` Richard Stallman
2022-01-20 4:54 ` Phil Sainty
2022-01-20 6:39 ` tomas
2022-01-20 17:58 ` [External] : " Drew Adams
2022-01-22 4:37 ` Richard Stallman
2022-01-22 5:16 ` Po Lu
2022-01-20 7:57 ` Eli Zaretskii
2022-01-20 6:35 ` Tim Cross
2022-01-20 7:39 ` tomas
2022-01-20 8:20 ` Eli Zaretskii
2022-01-20 7:48 ` Eli Zaretskii
2022-01-20 8:17 ` Lars Ingebrigtsen
2022-01-21 4:14 ` Richard Stallman
2022-01-19 8:20 ` Eli Zaretskii
2022-01-19 17:36 ` T.V Raman
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