Re: [selectors4] Should the reference combinator really be a combinator?

Tab Atkins Jr.:
> On Mar 12, 2012 5:13 PM, "Christoph Päper" <christoph.paeper@crissov.de> wrote:
>> 
>>  Maybe pseudo-attributes are more useful than pseudo-classes (…) here.
>> 
> That seems exactly the same as the pseudo class approach, except with a more limited syntax for selecting columns by selector.

Since classes are attribute values and pseudo-classes are CSS-based classes, pseudo-classes naturally should be a subset of pseudo-attributes.

The only reason – and it’s a good one – not to introduce pseudo-attributes for everything pseudo-classes can do is that ths would be unnecessary reduplication, unless there would be usecases demonstrating that sometimes pseudo-classes are not enough.