[ 'name' => tra('Username pattern'), 'description' => tr('This regex pattern requires or forbids the use of certain characters for username. For example, to add Hebrew, use: /^[ \'\-_a-zA-Z0-9@\.א-ת]*$/ or, for Chinese, use: /^[ \'\-_a-zA-Z0-9@\.\x00-\xff]*$/'), 'type' => 'text', 'size' => 25, 'perspective' => false, 'default' => '/^[ \'\-_a-zA-Z0-9@\.]*$/', ], ]; }