[BRLTTY] Linux console hacking (was: Re: Footsteps towards better accessibility in Linux)

[Aura Kelloniemi]

Hi,

On 2026-04-15 at 01:47 +0200, Samuel Thibault <samuel.thibault at ens-lyon.org> wrote:
 > Nicolas Pitre, le jeu. 09 avril 2026 23:12:06 -0400, a ecrit:
 > > Done — the protocol now handles grapheme clusters with a three-layer 
 > > approach (single codepoint, continuation cells, overflow area) and the 
 > > cell width field covers the whole cluster. See the updated design 
 > > document attached.

 > I'm a bit afraid of the complexity of the dynamic allocation of the
 > overflow entry. I agree that adding a limitation to 8 combining
 > codepoints brings static limitation, but conversely there have been
 > vulnerabilities found due to unbound combining codepoints management,
 > and for easier adoption, the protocol should be quite simple.

IMHO, if there is a static limitation, it should be futureproof – i.e. insely
big – like 16 or 32. But of course bumping the protocol version sometimes
should be acceptable.

-- 
Aura