> On Jul 3, 2023, at 2:04 PM, Tomas Hajny via fpc-pascal
> <fpc-pascal@lists.freepascal.org> wrote:
>
> No - in this case, the "header" is the highest bit of that byte being 0.
Oh it's the header BIT. Admittedly I don't understand how this function returns
the highest bit using that case, which I think he was suggesting.
function UTF8CodepointSizeFast(p: PChar): integer;
begin
case p^ of
#0..#191 : Result := 1;
#192..#223 : Result := 2;
#224..#239 : Result := 3;
#240..#247 : Result := 4;
else Result := 1; // An optimization + prevents compiler warning about
uninitialized Result.
end;
end;
Regards,
Ryan Joseph
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