Support parsing hsl() and hsla() functions#48843
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NickGerleman wants to merge 5 commits intofacebook:mainfrom
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Support parsing hsl() and hsla() functions#48843NickGerleman wants to merge 5 commits intofacebook:mainfrom
NickGerleman wants to merge 5 commits intofacebook:mainfrom
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This pull request was exported from Phabricator. Differential Revision: D68473990 |
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This pull request was exported from Phabricator. Differential Revision: D68473990 |
…aOrWhitespaceOrSolidus (facebook#48828) Summary: 1. Rename `CSSComponentValueDelimeter` to `CSSDelimeter` bc the names are getting way too long. 2. Make the distinction between `Whitespace` and `OptionalWhitespace`. Note that for property values, and function blocks, the value parser will already remove trailing/leading whitespace, but it's weird that whitespace unlike others was not required to be present 3. Add `CSSDelimeter::CommaOrWhitespaceOrSolidus` for simpler parsing in the common pattern of alpha values, and move CSSColor function parsing to use that Changelog: [Internal] Reviewed By: lenaic Differential Revision: D68461968
Summary: In the last diff I mixed and matched `<legacy-rgb-syntax>` and `<modern-rgb-syntax>` a bit to keep compatiblity with `normalze-color`. Spec noncompliant values have only been allowed since facebook#34600 with the main issue being that legacy syntax rgb functions are allowed to use the `/` based alpha syntax, and commas can be mixed with whitespace. This seems like an exceedingly rare real-world scenario (there are currently zero usages of slash syntax in RKJSModules validated by `rgb\([^\)]*/`), so I'm going to instead just follow the spec for more sanity. Another bit that I missed was that modern RGB functions allow individual components to be `<percentage>` or `<number>` compared to legacy functions which only allow the full function to accept one or the other (`normalize-color` doesn't support `<percentage>` at all), so I fixed that as well. I started sharing a little bit more of the logic here, to make things more readable when adding more functions. Changelog: [Internal] Reviewed By: javache Differential Revision: D68468275
…facebook#48841) Summary: Right now during parsing we can ask for a next component value, with a delimeter, and even if we don't have a component value to consume, we will consume the delimeter. This is kind of awkward since e.g. trailing comma can be consumed, then we think syntax is valid. Let's try changing this. Changelog: [Internal] Reviewed By: lenaic Differential Revision: D68474739
Summary: This is a result of inlining isinf previously but we can never be negative infinity because we can never be less than zero. Changelog: [Internal] Reviewed By: lenaic Differential Revision: D68474836
Summary: Adds support for hsl() and hsla() funtions. This supports more modern syntax options than normalize-color, like number components, optional alpha, and fills in missing support for angle units. The underlying math was lifted pretty much directly from normalize-color though. An aside, std::remainder for these is not guaranteed to be constexpr, but Clang is still okay with rgb function parsing to be contexpr because we never try to evaluate non-constexpr function? Changelog: [Internal] Reviewed By: lenaic Differential Revision: D68473990
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This pull request was exported from Phabricator. Differential Revision: D68473990 |
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This pull request was exported from Phabricator. Differential Revision: D68473990 |
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This pull request has been merged in fae6edb. |
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Summary:
Adds support for hsl() and hsla() funtions. This supports more modern syntax options than normalize-color, like number components, optional alpha, and fills in missing support for angle units. The underlying math was lifted pretty much directly from normalize-color though.
An aside, std::remainder for these is not guaranteed to be constexpr, but Clang is still okay with rgb function parsing to be contexpr because we never try to evaluate non-constexpr function?
Changelog: [Internal]
Differential Revision: D68473990