Add ignoreFunctions: [] to function-no-unknown

[mizozobu]

What is the problem you're trying to solve?

function-no-unknown throws an error when using non-standard funcitons such as tailwindcss theme function.

What solution would you like to see?

It would be nice to have a feature to ignore certain functions just like ignoreAtRules of at-rule-no-unknown.

[jeddy3]

@mizozobu Thanks for the request and for using the template.

Sounds good to me.

I've labelled the issue as ready to implement. Please consider contributing if you have time.

There are steps on how to add a new option in the Developer guide.

Out of curiosity, does Tailwind have an dashed ident alias for theme(), e.g. --tailwind-theme(), that you can use?

[ybiquitous]

@mizozobu Thanks for the suggestion. I've opened a pull request #5901.

[mizozobu]

@jeddy3

Out of curiosity, does Tailwind have an dashed ident alias for theme(), e.g. --tailwind-theme(), that you can use?

Not that I know of, or at least it's not documented. I've tried --tailwind-theme() and --tw-theme(), but no luck. My best guess is that tailwindcss performs some transformation with postcss instead of exposing their functions.

https://github.com/tailwindlabs/tailwindcss/blob/5ea67b0a86be1df2a2392dd17468de61e5b4b6f7/tests/evaluateTailwindFunctions.test.js#L9-L32

[jeddy3]

Thanks for trying them out. Maybe they'll add them in the future.

[jeddy3]

Released in 14.5.0.