Combining characters

[Alex Shpilkin]

On Sun, Dec 14 2025 at 14:02:41 -08:00:00, Asmus Freytag via Unicode 
<unicode at corp.unicode.org> wrote:
> To make matters more complex, some combining marks are defined to not 
> reorder. Those can be in any order defined by the author and could 
> lead to duplicate encoding for the same display. The reasons behind 
> supporting that are a bit complex, but generally it's done for 
> scripts other than Latin.

Amusingly, study of literal Latin, the language, uses two combining 
marks of the same CCC together as a matter of course: dictionaries mark 
a vowel with (what in NFD would be) the sequence COMBINING MACRON, 
COMBINING BREVE to tell the reader that a syllable’s length either 
varies or cannot be determined.

-- 
Cheers,
Alex