Selectors 4?

[Boscop]

Would it be possible to add support for selectors level 4?
E.g.
tr:nth-last-child(1 of :not(.table_vert_controls))
https://www.w3.org/TR/selectors-4/#the-nth-last-child-pseudo

[SimonSapin]

This would belong in the selectors crate https://github.com/servo/servo/tree/master/components/selectors/, which is used in Servo and Firefox. See also https://bugzilla.mozilla.org/show_bug.cgi?id=854148

[Boscop]

@SimonSapin But this crate doesn't seem to depend on the selectors crate.
It'd be useful to have support in this crate (also because this crate is used in the scraper crate).

[SimonSapin]

selectors depends on cssparser, so it can’t also be the other way around. scraper can depend on both of them.

Here is an example:

• https://github.com/SimonSapin/victor/blob/fdb11f3e87f6d2d59170d10169fa6deb94e53b94/victor/src/style/rules.rs
• https://github.com/SimonSapin/victor/blob/fdb11f3e87f6d2d59170d10169fa6deb94e53b94/victor/src/style/selectors.rs

[SimonSapin]

Closing in favor of servo/servo#26263.