Re: Why 17 planes?

To this, my mother would say: "Why keep it simple when we can make it
complicated?".

Regards, Martin.

On 2012/11/27 21:01, Philippe Verdy wrote:
> That's a valid computation if the extension was limited to use only
> 2-surrogate encodings for supplementary planes.
>
> If we could use 3-surrogate encodings, you'd need
> 3*2ˆn surrogates
> to encode
> 2^(3*n)
> new codepoints.
>
> With n=10 (like today), this requires a total of 3072 surrogates, and you
> encode 2^30 new codepoints. This is still possible today, even if the BMP
> is almost full and won't allow a new range of 1024 surrogates: you can
> still use 2 existing surrogates to encode 2048 "hyper-surrogates" in the
> special plane 16 (or for private use in the private planes 14 and 15),
> which will combine with the existing low surrogates in the BMP.
Received on Tue Nov 27 2012 - 19:07:54 CST