[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Can watermarking Unicode text using invisible differences sneak thro
From: |
Richard Stallman |
Subject: |
Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it? |
Date: |
Thu, 03 Feb 2022 22:52:07 -0500 |
[[[ To any NSA and FBI agents reading my email: please consider ]]]
[[[ whether defending the US Constitution against all enemies, ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]
It would be useful to be able to analyze and construct complex
characters -- for instance, to operate on a-with-breve-and-tilde
and find out that represents an a with two diacritics.
So I propose a function, `diacriticize'. Its arguments are
characters, and if they can be graphically combined to make a single
character, that's what diacriticize returns. Otherwise, it returns
nil.
(diacriticize ?a ?~ ?˘) => ?ã¯
(diacriticize ?a ?Z) => nil
It could have an inverse function, criticanalyze, which given the
character code for a character that is (in spirit) a composition,
would return the characters it consists of:
(criticanalyze ?ã˘) => (?a ?~ ?˘)
With these functions, latin1-display could figure out automatically
which conversions to make.
--
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)
- 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, 2022/02/05
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Tomas Hlavaty, 2022/02/05
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/06
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Tomas Hlavaty, 2022/02/06
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/06
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Andreas Schwab, 2022/02/06
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Tomas Hlavaty, 2022/02/05
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/05
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/05
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Tomas Hlavaty, 2022/02/06
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?,
Richard Stallman <=
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/04
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/05
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/06
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/07
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/07
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/07
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Eli Zaretskii, 2022/02/08
- Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?, Richard Stallman, 2022/02/08
- 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