What rules have been used for the current list of codepoints?

[Patrik Fältström]

On 14 dec 2006, at 23.49, Michael Everson wrote:

>> I thought this was why we had classes. What stops us from having a  
>> new class that is "suitable for domain names"?
>
> Um, "classes"? What are these? Who defines these? Where is this  
> registry maintained?

Oh, sorry.

Now I understand the confusion. We have heard General_Category here.  
In programming APIs this is called "class", at least the ones I have  
been looking at.

    Patrik