[Webkit-unassigned] [Bug 167031] Media Query should allow negation for media feature when media type is not specified

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=167031

--- Comment #2 from Dean Jackson <dino at apple.com> ---
Here's how I'm reading the spec....

Suppose we have:

div {
  width: 100px;
  height: 100px;
  background-color: red;
}

@media not (min-width: 600px) {
  div {
    background-color: blue;
  }
}

Then the @media rule follows

[[[
2.2.1. Negating a Media Query: the not keyword

An individual media query can have its result negated by prefixing it with the keyword not. If the media query would normally evaluate to true, prefixing it with not makes it evaluate to false, and vice versa.
]]]

And it gives an example.

However, I don't this this rule applies in this case. Check out Section 3. Syntax.

<media-query> = <media-condition>
             | [ not | only ]? <media-type> [ and <media-condition-without-or> ]?

In our example, it matches <media-condition>, rather than "not <media-type>".

<media-condition> = <media-not> | <media-and> | <media-or> | <media-in-parens>

Cool. It looks like we are a <media-not>.

<media-not> = not <media-in-parens>
<media-in-parens> = ( <media-condition> ) | <media-feature> | <general-enclosed>

So this is a media-not, that has a media-in-parens that is a media-feature.

None of the browsers follow this behaviour though.

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