Add missing functions

[Mouvedia]

• webkit-gradient
• color-stop
• from
• to
• light-dark

stylelint/stylelint#5960
stylelint/stylelint#7226

[niksy]

Thanks for the report.

These are resources where we generate list of available CSS functions:

• https://github.com/niksy/css-functions-list/blob/master/generate-list.js#L14
• https://github.com/niksy/css-functions-list/blob/master/generate-list.js#L23
• https://github.com/niksy/css-functions-list/blob/master/generate-list.js#L46

If it’s not there, it would be best to add it there first and then we can update it, similar to how it’s done for newer color functions.

Or, if you can provide additional resource for functions list, I will add it to the parser.

[Mouvedia]

Or, if you can provide additional resource for functions list, I will add it to the parser.

https://www.webkit.org/blog/175/introducing-css-gradients/
https://drafts.csswg.org/css-color-5/#light-dark

These are probably not resources for the generator; all I could do is add an additional array to generate-list.js.
These functions are either too old or too new to be documented on developer.mozilla.org.

[niksy]

"too old" means that we probably won’t have them anywhere (the blog post is from 2008 and I think there is a small amount of codebases using it), "too new" will be documented eventually and then new list will be generated. In the meantime, you can ignore those functions.

[Mouvedia]

I disagree with your stance on "too old" functions, that kind of package should be exhaustive IMO; but that's your prerogative as the author and I respect it nonetheless.
Concerning "too new" functions, we will just add exceptions instead of sending PRs from now on.

[niksy]

After additional consideration, I’ve decided to add those functions. -webkit-gradient is added manually, and light-dark is now pulled from https://github.com/mdn/browser-compat-data.