/**
* Returns a new route object for inspecting and generating the host.
*
* @param string $pattern The host pattern
* @param array $defaults All defaults for the current route
* @param array $requirements All requirements for the current route
* @param array $options All options for the current route
*
* @return sfRoute
*/
protected function createHostRoute($pattern, $defaults, $requirements, $options)
{
$filteredDefaults = array();
$filteredRequirements = array();
// this temporary route is just for extracting variables from the pattern
$tmp = new sfRoute($pattern);
foreach (array_keys($tmp->getVariables()) as $name) {
if (isset($defaults[$name])) {
$filteredDefaults[$name] = $defaults[$name];
}
if (isset($requirements[$name])) {
$filteredRequirements[$name] = $requirements[$name];
}
}
return new sfRoute($pattern, $filteredDefaults, $filteredRequirements, $options);
}
