Improve type detection for arbitrary color values #8201
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bradlc
commented
Apr 26, 2022
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| let RGB = new RegExp( | ||
| `^rgba?\\(\\s*(${VALUE.source}|${CUSTOM_PROPERTY.source})${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source})${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source})(?:${ALPHA_SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?\\s*\\)$` | ||
| `^(rgb)a?\\(\\s*(${VALUE.source}|${CUSTOM_PROPERTY.source})(?:${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?(?:${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?(?:${ALPHA_SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?\\s*\\)$` | ||
| ) | ||
| let HSL = new RegExp( | ||
| `^hsla?\\(\\s*((?:${VALUE.source})(?:deg|rad|grad|turn)?|${CUSTOM_PROPERTY.source})${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source})${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source})(?:${ALPHA_SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?\\s*\\)$` | ||
| `^(hsl)a?\\(\\s*((?:${VALUE.source})(?:deg|rad|grad|turn)?|${CUSTOM_PROPERTY.source})(?:${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?(?:${SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?(?:${ALPHA_SEP.source}(${VALUE.source}|${CUSTOM_PROPERTY.source}))?\\s*\\)$` | ||
| ) |
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The second and third color parts have been made optional, and the amount of parts is validated later instead (line 55)
RobinMalfait
approved these changes
Apr 27, 2022
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Fixes #8171
This PR improves type detection for arbitrary color values. Previously the following classes would not be generated because the type of the values could not be determined:
Instead you would have to provide a type hint:
The hint should not be necessary here because we can tell the values are colors based on the use of
rgb().This PR adds a
loosemode to theparseColorfunction that allows colors with fewer than 3 parts (like the above examples) as long as at least one of the parts is variable. We then use this parsing mode when looking for colors in arbitrary values.