4 const _ = require("lodash");
6 // Add an empty line before a node. Mutates the node.
7 function addEmptyLineBefore(
8 node /*: postcss$node*/,
9 newline /*: '\n' | '\r\n'*/
10 ) /*: postcss$node*/ {
11 if (!/\r?\n/.test(node.raws.before)) {
12 node.raws.before = _.repeat(newline, 2) + node.raws.before;
13 } else if (/^\r?\n/.test(node.raws.before)) {
14 node.raws.before = newline + node.raws.before;
15 } else if (/\r?\n$/.test(node.raws.before)) {
16 node.raws.before = node.raws.before + newline;
18 node.raws.before = node.raws.before.replace(/(\r?\n)/, `${newline}$1`);
23 module.exports = addEmptyLineBefore;