36 lines
1.0 KiB
JavaScript
36 lines
1.0 KiB
JavaScript
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const postcss = require('postcss');
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const shorthandData = require('./shorthandData');
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function isShorthand(a, b) {
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const longhands = shorthandData[a] || [];
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return longhands.includes(b);
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}
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module.exports = function checkAlphabeticalOrder(firstPropData, secondPropData) {
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// OK if the first is shorthand for the second:
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if (isShorthand(firstPropData.unprefixedName, secondPropData.unprefixedName)) {
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return true;
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}
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// Not OK if the second is shorthand for the first:
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if (isShorthand(secondPropData.unprefixedName, firstPropData.unprefixedName)) {
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return false;
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}
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// If unprefixed prop names are the same, compare the prefixed versions
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if (firstPropData.unprefixedName === secondPropData.unprefixedName) {
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// If first property has no prefix and second property has prefix
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if (
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!postcss.vendor.prefix(firstPropData.name).length &&
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postcss.vendor.prefix(secondPropData.name).length
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) {
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return false;
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}
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return true;
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}
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return firstPropData.unprefixedName < secondPropData.unprefixedName;
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};
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