'use strict'; const canonicalProperties = require('unicode-canonical-property-names-ecmascript'); const propertyAliases = require('unicode-property-aliases-ecmascript'); const matchProperty = function(property) { if (canonicalProperties.has(property)) { return property; } if (propertyAliases.has(property)) { return propertyAliases.get(property); } throw new Error(`Unknown property: ${ property }`); }; module.exports = matchProperty;