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21 lines
469 B
JavaScript
21 lines
469 B
JavaScript
/**
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* Add one or two empty line(s) before a node. Mutates the node.
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*
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* @template {import('postcss').Node} T
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* @param {T} node
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* @param {string} newline
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* @returns {T}
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*/
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export default function addEmptyLineBefore(node, newline) {
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const { raws } = node;
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if (typeof raws.before !== 'string') {
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return node;
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}
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raws.before = !/\r?\n/.test(raws.before)
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? newline.repeat(2) + raws.before
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: raws.before.replace(/(\r?\n)/, `${newline}$1`);
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return node;
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}
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