Fix broken minification for non-opaque oklab colors #901
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lfesp
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Fixes incorrect addition of an extra hyphen to CSS output for floating-point values that are sufficiently low to be represented by scientific notation.
Context
If a value is represented by scientific notation, it may not be prefixed by "-0" but rather "-D", where D is some digit. In the code block below, if
number < 0butsis not prefixed by "-0", then two hyphens are written.https://github.com/parcel-bundler/lightningcss/blob/0afd5d67196c1363e9f70aec8a763e786691255e/src/values/number.rs#L38C1-L49C13
This changes fixes this incorrect behavior by trimming additional leading hyphens ("-") from the string representation of the negative number.
Resolves Issue
This resolves issue with incorrect conversion from color-mix to oklab() (#899) resulting from double negative sign.
This issue is urgent for myself, as it causes Tailwind v4 classes using custom hex colors and non-100% opacity to break, as is seen in the reproduction here provided in the GH issue.