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[css3-conditional] value of CSSSupportsRule.conditionText

From: Cameron McCormack <cam@mcc.id.au>
Date: Sat, 04 Aug 2012 14:51:02 +1000
Message-ID: <501CAA36.5040007@mcc.id.au>
To: "www-style@w3.org" <www-style@w3.org>
It's not exactly clear to me what should be included in conditionText 
when it comes to white space and comments.  For example, with:

   @supports (a: b) {}

My guess is that we would want to return "(a: b)" rather than "(a: b )" 
or " (a: b) ".  But looking at the grammar, I think supports_condition 
should actually include the trailing white space since there a "S*" at 
the end of each production.  So I think the spec should say to trim 
white space of the string that is returned.

But comments should probably stay, since if you think there is 
implicitly a COMMENT* between after each other symbol in the grammar 
then it would be included in the supports_condition, and it isn't as 
simple to trim comments from the string.  So for:

   @supports /*1*/ (a: b) /*2*/ {}

I think it should return "(a: b) /*2*/".
Received on Saturday, 4 August 2012 04:51:34 UTC

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