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Re: Can watermarking Unicode text using invisible differences sneak thro
From: |
Eli Zaretskii |
Subject: |
Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it? |
Date: |
Wed, 16 Feb 2022 14:10:04 +0200 |
> From: Richard Stallman <rms@gnu.org>
> Cc: psainty@orcon.net.nz, luangruo@yahoo.com,
> kevin.legouguec@gmail.com, emacs-devel@gnu.org
> Date: Tue, 15 Feb 2022 23:14:25 -0500
>
> > No, for replacements for the cdr part of the likes of
>
> > (?\ẵ "a(?")
>
> > You said that you didn't like (? as the equivalent of the two
> > diacritics ̆̃, so I suggested that you propose alternative equivalents
> > which you'd like better.
>
> That is the question I answered -- in full generality.
> Instead of sending you a very long list of replacements,
> I sent simple general rules to handle ALL characters
> that have the form LETTER + DIACRITIC, and ALL characters
> that have the form LETTER + DIACRITIC1 + DIACRITIC2.
>
> The character you just cited is LATIN SMALL LETTER A WITH BREVE AND TILDE.
> The rule is
>
> For each character whose name has the form
>
> latin (small|capital) letter \1 with \2 and \3
>
> if the terminal can't display that, but it can display \1 with \2,
> it should display
>
> LATIN (SMALL|CAPITAL) LETTER \1 WITH \2
>
> followed by the graphical form of \3.
>
> Otherwise, it should display
>
> \1 followed by the graphical form of \2 followed by the graphical form
> of \3.
I understand the general rule, but I hoped you had specific
suggestions for those \2 and \3 placeholders.
It now sounds like you actually suggest to display the diacritic in
its non-combining variety, as I understand from this example:
> Following this rule, Emacs would display ă~, if the terminal can handle that,
> otherwise a˘~ .
But in that case, it goes against the spirit of this feature, which
expresses non-ASCII characters with equivalent strings composed of
ASCII characters. Since ˘ is non-ASCII, chances are that the terminal
which cannot display ă will be unable to display ˘ as well.
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, (continued)
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/09
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/09
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/10
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/11
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/12
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/13
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/14
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/14
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/15
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/15
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?,
Eli Zaretskii <=
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/18
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Tomas Hlavaty, 2022/02/12
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/13