A "word" character is any letter or digit or the underscore character, that is, any character which can be part of a Perl "word". The definition of letters and digits is controlled by PCRE's character tables, and may vary if locale-specific matching is taking place. For example, in the "fr" (French) locale, some character codes greater than 128 are used for accented letters, and these are matched by \w.
➜ ~ php -v
PHP 7.0.8 (cli) (built: Jun 23 2016 16:32:40) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies$scope.window.alert. Неужели непонятно?) Создайте нужный метод в $scope и вызывайте его.)