e46b3d74ee
This PR fixes an issue where hex-based colors in arbitrary properties
and values were considered case-sensitive even though they are
case-insensitive in CSS.
If you look at the linked issue, there is this input CSS:
```css
@theme {
--color-brand-purple: #3f3cbb;
}
```
We expect that both `bg-[#3f3cbb]` and `bg-[#3F3CBB]` get canonicalized
to `color-brand-purple` but before this pr, only the first one would get
canonicalized that way (since it's a perfect match).
Technically a bunch more values are case-insensitive but a lot of them
_are_ sensitive so to get this 100% correct, a lot more parsing needs to
happen. I think we can start with this and expand the logic when needed.
Fixes: #20295
## Test plan
1. Added a regression test based on the linked issue
2. Added tests for arbitrary properties (`[color:#fff]` vs
`[color:#FFF]`), and tests for arbitrary properties (`bg-[#fff]` vs
`bg-[#FFF]`)
|
||
|---|---|---|
| .. | ||
| @tailwindcss-browser | ||
| @tailwindcss-cli | ||
| @tailwindcss-node | ||
| @tailwindcss-postcss | ||
| @tailwindcss-standalone | ||
| @tailwindcss-upgrade | ||
| @tailwindcss-vite | ||
| @tailwindcss-webpack | ||
| internal-example-plugin | ||
| tailwindcss | ||
| tsconfig.base.json | ||