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[css3-values] Order-sensitive "one or more" component value combinator

From: fantasai <fantasai.lists@inkedblade.net>
Date: Fri, 20 Apr 2012 15:04:47 -0700
Message-ID: <4F91DD7F.8020608@inkedblade.net>
To: "www-style@w3.org" <www-style@w3.org>
There's a few places where our grammars would be much simpler (less repetition)
if we had a combinator that meant "this or that or both, but in this order".
(We have the double-bar, which means "this or that or both", but there's no
ordering requirement there.)

So I'm proposing we add one, and the best idea I could come up with was ??,

   property-name: <foo> ?? <bar>


Note: this would qualify as an editorial change.

Received on Friday, 20 April 2012 22:38:52 UTC

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