Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?

[Richard Stallman]

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  > > Then the natural visual representations would be ă~ (a with breve,
  > > then tilde) and ã˘ (a with tilde, then breve),

  > Either one would be fine, but the former is better, I think, since ~
  > is an ASCII character, and so is universally supported.

That's a good point, but Yuri Khan <yuri.v.khan@gmail.com> said:

  > The ordering of diacritics on the same side of the base character is
  > considered significant in Unicode, so ă~ and ã˘ would be
  > representations of different grapheme clusters — “a with breve and
  > tilde” and “a with tilde and breve”, respectively.

Are there really two different Unicode characters like that?

C-x 8 RET recognizes
LATIN SMALL LETTER A WITH BREVE AND TILDE
but it does not recognize
LATIN SMALL LETTER A WITH TILDE AND BREVE

Is the failure to handle the latter a bug?

-- 
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)