27 lines
566 B
JavaScript
27 lines
566 B
JavaScript
'use strict';
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/** @typedef {import('postcss').ChildNode} ChildNode */
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/**
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* Add an empty line before a node. Mutates the node.
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*
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* @param {ChildNode} node
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* @param {'\n' | '\r\n'} newline
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* @returns {ChildNode}
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*/
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function addEmptyLineBefore(node, newline) {
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if (node.raws.before === undefined) {
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return node;
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}
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if (!/\r?\n/.test(node.raws.before)) {
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node.raws.before = newline.repeat(2) + node.raws.before;
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} else {
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node.raws.before = node.raws.before.replace(/(\r?\n)/, `${newline}$1`);
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}
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return node;
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}
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module.exports = addEmptyLineBefore;
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