Website Structure

Frontend-Learner/node_modules/postcss-minify-selectors/src/lib/canUnquote.js

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+'use strict';
+
+const cssesc = require('cssesc');
+/**
+ * Can unquote attribute detection from mothereff.in
+ * Copyright Mathias Bynens <https://mathiasbynens.be/>
+ * https://github.com/mathiasbynens/mothereff.in
+ */
+const escapes = /\\([0-9A-Fa-f]{1,6})[ \t\n\f\r]?/g;
+const range =
+  // eslint-disable-next-line no-control-regex
+  /[\u0000-\u002c\u002e\u002f\u003A-\u0040\u005B-\u005E\u0060\u007B-\u009f]/;
+
+/**
+ * @param {string} value
+ * @return {boolean}
+ */
+module.exports = function canUnquote(value) {
+  if (value === '-' || value === '') {
+    return false;
+  }
+
+  value = value.replace(escapes, 'a').replace(/\\./g, 'a');
+
+  return (
+    !(range.test(value) || /^(?:-?\d|--)/.test(value)) &&
+    // Do not remove the quotes if escaping is required.
+    cssesc(value) === value
+  );
+};