/** * Check whether a property is standard * * @param {string} property * @return {boolean} If `true`, the property is standard */ module.exports = function isStandardSyntaxProperty(property) { // SCSS var (e.g. $var: x), list (e.g. $list: (x)) or map (e.g. $map: (key:value)) if (property.startsWith('$')) { return false; } // Less var (e.g. @var: x) if (property.startsWith('@')) { return false; } // SCSS or Less interpolation if (/#{.+?}|@{.+?}|\$\(.+?\)/.test(property)) { return false; } return true; };