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Re: [css3-fonts] new editor's draft

From: L. David Baron <dbaron@dbaron.org>
Date: Tue, 20 Jan 2009 08:30:08 -0800
To: Anne van Kesteren <annevk@opera.com>
Cc: John Daggett <jdaggett@mozilla.com>, www-style <www-style@w3.org>
Message-ID: <20090120163008.GB27807@pickering.dbaron.org>

On Tuesday 2009-01-20 12:55 +0100, Anne van Kesteren wrote:
> Wouldn't it be better to simply require using MyFont1 and MyFont2 rather  
> than having some special behavior in case you have several @font-face  
> blocks using the same identifier?
>
> I personally would expect the last @font-face rule there to override the  
> first.

Are you proposing that @font-face rules that have identical
descriptors (other than 'src') drop all but the last identical
descriptor?  That's problematic because then you then have to
determine which @font-face rules are identical, which could be a big
problem if we ever want to add a new descriptor like 'unicode-range'
or add to the syntax of 'unicode-range' (in which case the
descriptor would be dropped).

Consider, for example, what would have happened in that rule if
implementations initially implemented @font-face without
'unicode-range' (as some are), and then 'unicode-range' were
introduced in the next level of the specification.  In such a
situation, pages wouldn't be able to split fonts and use
'unicode-range' until all implementations they cared about supported
it.

-David

-- 
L. David Baron                                 http://dbaron.org/
Mozilla Corporation                       http://www.mozilla.com/
Received on Tuesday, 20 January 2009 16:31:03 GMT

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