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Re: [mediaqueries] Intentional that "not" is only usable in front of a media type?

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Tue, 12 Nov 2013 00:57:26 -0800
Message-ID: <CAAWBYDDvZrUkbmFk9HSsoYFYTPJ6tCcA=YYjEoKU6aftGE5dDQ@mail.gmail.com>
To: "L. David Baron" <dbaron@dbaron.org>
Cc: www-style list <www-style@w3.org>
On Tue, Nov 12, 2013 at 12:54 AM, L. David Baron <dbaron@dbaron.org> wrote:
> On Tuesday 2013-11-12 00:40 -0800, Tab Atkins Jr. wrote:
>> According to the grammar in Media Queries, the "not" keyword is only
>> allowed in front of a media type.  You can't put it in front of a set
>> of media features, like "not (color)".
>>
>> However, as far as I can tell, using a "not" negates the entire query,
>> not just the type.  That is, "not screen and (color)" means "not a
>> color screen", rather than "not a screen, but has color".
>>
>> Am I right in interpreting this?  If not, I need to revise the spec to
>> make this more clear.
>
> I believe you are correct.

Ok.

>> If I am, does anyone have any clue why this grammar restriction
>> exists?  It seems more reasonable to let it apply to media features
>> without a media type as well.
>
> I'd like to relax these restrictions and make the media queries
> grammar a lot more like the @supports condition grammar.  I think
> there were others in favor the last time I brought that up.
>
> (I'm hoping it's one of the big things on the table for the next
> level of media queries, along with refactoring the characteristics
> of media types into media queries and pretty much deprecating the
> types.)

Yeah, I am down with this.  MQ4 right now deprecates all but
all/screen/print.  (I was working on it this weekend.)

~TJ
Received on Tuesday, 12 November 2013 08:58:13 UTC

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