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14 lines
512 B
14 lines
512 B
// Add an empty line before a node. Mutates the node.
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module.exports = function addEmptyLineBefore(node, newline) {
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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 if (/^\r?\n/.test(node.raws.before)) {
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node.raws.before = newline + node.raws.before;
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} else if (/\r?\n$/.test(node.raws.before)) {
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node.raws.before = node.raws.before + newline;
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} else {
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node.raws.before = node.raws.before.replace(/(\r?\n)/, `${newline}$1`);
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}
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return node;
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};
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