Avri Doria avri at
Fri Feb 9 19:47:51 CET 2007


I am sort of knew to this level of the discussion but am wondering at  
the extent of the list.  e.g I have been curious why some of the  
symbols would not be allowed.  I tend to look at the possibility of  
symbolic labels as offering a possible alternative for non literate  
people on special appliances.

Are there technical issues that make these problematic?  Or is this a  
policy decision that is being encapsulated into the technical solution?


On 2 feb 2007, at 21.37, Kenneth Whistler wrote:

> For conservative criteria for what to absolutely, positively
> guarantee are in the never, never, ever category, I have
> started with:
> 1. cp != NFKC(cp)
> 2. cp has Pattern_Syntax property
> 3. cp has Pattern_White_Space property
> 4. cp has White_Space property
> 5. cp has Variation_Selector property
> 6. cp has Noncharacter_Code_Point property
> 7. cp has General_Category=Cf (Unicode format controls)
> 8. cp has General_Category=Cc (ISO controls)

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