nl_tokens: Filters the existing attributes for the given property . Discards any attributes which don t match the whitelist .
pl_tokens: function filterDeclarations ( selectedRule ) { return function ( allowedDeclarationsList , attributeObject ) { // If this property is whitelisted... if ( selectedRule . hasOwnProperty ( attributeObject . prop ) ) { var matchesRegex = selectedRule [ attributeObject . <mask> ] . some ( function ( regularExpression ) { return regularExpression . test ( attributeObject . value ) ; } ) ; if ( matchesRegex ) { allowedDeclarationsList . push ( attributeObject ) ; } } return allowedDeclarationsList ; } ; }