- From: Guillaume via GitHub <sysbot+gh@w3.org>
- Date: Thu, 04 Apr 2024 07:47:26 +0000
- To: public-css-archive@w3.org
Right, sorry:
1. `<declaration>` still needs to reference `<dfn type="<declaration>">` somewhere
2. I was wrong about `unknown: 1` or `color: invalid` not matching `<declaration>`
I was wrong because browsers accept `@import 'sheet.css' supports(unknown: 1);` (but do not apply the stylesheet). The difference between *accept* and *support* confuses me in:
> If a processor does not implement, with a usable level of support, the value given, then it must not accept the declaration or claim support for it.
That said, `(unknown: 1)` or `(color: invalid)` matching `<general-enclosed>` instead of `(<declaration>)` seems sane to me because they do not need to be re-evaluated, similarly as `@media (unknown) {}` never needs to be re-evaluated.
This could be achieved by treating the result of matching `<supports-decl>` (instead of `<declaration>`) as a syntax error when it fails to be parsed against the grammar, similarly as an unknown media feature name or an invalid value according to the media feature value definition, matches `<general-enclosed>` (it is evaluated to `unknown`).
--
GitHub Notification of comment by cdoublev
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/8795#issuecomment-2036429857 using your GitHub account
--
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Thursday, 4 April 2024 07:47:27 UTC