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- module.exports = function escape(url) {
- if (typeof url !== 'string') {
- return url
- }
- // If url is already wrapped in quotes, remove them
- if (/^['"].*['"]$/.test(url)) {
- url = url.slice(1, -1);
- }
- // Should url be wrapped?
- // See https://drafts.csswg.org/css-values-3/#urls
- if (/["'() \t\n]/.test(url)) {
- return '"' + url.replace(/"/g, '\\"').replace(/\n/g, '\\n') + '"'
- }
-
- return url
- }
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