public function run($args = null)
{
global $argv;
if ($args === null) {
$args = $argv;
$args[0] = $this->name;
}
if ($this->root->run($args)) {
return;
}
foreach ($this->contexts as $context) {
if ($context['instance']->run($args)) {
return;
}
}
$this->dispatcher->dispatch(self::EVENT_INVALID_USAGE, new InvalidUsageEvent($args, $this->root->getOptionDefinitions()));
}
