Re: [css3-text] Capital spacing

Etan Wexler writes:
> 
> Given the computed properties
> 
>      { text-transform: uppercase; letter-spacing: normal },
> 
> may a user agent apply all-caps spacing between grapheme clusters? Does 
> the permission to do so depend on the fonts' provision of such metrics? 

I think you have to explain a bit more. If the text contains a word
like "valley" and 'text-transform' turns it into "VALLEY", it seems to
me quite obvious that the kerning between the V and the A should be
whatever the font says it should be for V and A, not what it says for
v and a. It would look rather ugly otherwise.

> May a user agent, in the absence of all-caps tracking metrics, adjust 
> the inter-grapheme-cluster spacing based on heuristics?

I believe that is what is supposed to happen if you set 'kerning-mode:
contextual'. The definition of 'kerning-mode' says that 'contextual'
is not based on font information. This may be a bit confusing, since
some fonts in fact have built-in kerning rules that are also called
"contextual kerning rules." (But then, how many people know that?)



Bert
-- 
  Bert Bos                                ( W 3 C ) http://www.w3.org/
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