stylelint/lib/utils/isStandardSyntaxProperty.js

A mighty, modern CSS linter.

/* @flow */
'use strict';

const _ = require('lodash');
const hasInterpolation = require('../utils/hasInterpolation');

/**
 * Check whether a property is standard
 */
module.exports = function(property /*: string*/) /*: boolean*/ {
	// SCSS var (e.g. $var: x), list (e.g. $list: (x)) or map (e.g. $map: (key:value))
	if (property[0] === '$') {
		return false;
	}

	// Less var (e.g. @var: x)
	if (property[0] === '@') {
		return false;
	}

	// Less append property value with space (e.g. transform+_: scale(2))
	if (_.endsWith(property, '+') || _.endsWith(property, '+_')) {
		return false;
	}

	// SCSS or Less interpolation
	if (hasInterpolation(property)) {
		return false;
	}

	return true;
};