Unicode "no-op" Character?

[J Decker via Unicode]

Sounds like a great use for ZWNBSP  (zero width non-breaking space) 0xFEFF
(Also used as BOM)
or that doesn't break; maybe 'ZERO WIDTH SPACE' (U+200B)

On Fri, Jun 21, 2019 at 9:48 PM Sławomir Osipiuk via Unicode <
unicode at unicode.org> wrote:

> Does Unicode include a character that does nothing at all? I’m talking
> about something that can be used for padding data without affecting
> interpretation of other characters, including combining chars and
> ligatures. I.e. a character that could hypothetically be inserted between a
> latin E and a combining acute and still produce É. The historical
> description of U+0016 SYNCHRONOUS IDLE seems like pretty much exactly what
> I want. It only has one slight disadvantage: it doesn’t work. All software
> I’ve tried displays it as an unknown character and it definitely breaks up
> combinations. And U+0000 NULL seems even worse.
>
>
>
> I can imagine the answer is that this thing I’m looking for isn’t a
> character at all and so should be the business of “a higher-level protocol”
> and not what Unicode was made for… but Unicode does include some odd things
> so I wonder if there is something like that regardless. Can anyone offer
> any suggestions?
>
>
>
> Sławomir Osipiuk
>
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