stylelint/lib/utils/isKeyframeSelector.js

A mighty, modern CSS linter.

/* @flow */
'use strict';

const keywordSets = require('../reference/keywordSets');

/**
 * Check whether a string is a keyframe selector.
 */
module.exports = function(selector /*: string*/) /*: boolean*/ {
	if (keywordSets.keyframeSelectorKeywords.has(selector)) {
		return true;
	}

	// Percentages
	if (/^(?:\d+\.?\d*|\d*\.?\d+)%$/.test(selector)) {
		return true;
	}

	return false;
};