/**
* Loads the message from a particular catalogue. A listed
* loaded catalogues is kept to prevent reload of the same
* catalogue. The load catalogue messages are stored
* in the $this->message array.
*
* @param string $catalogue message catalogue to load.
*/
protected function loadCatalogue($catalogue)
{
if (in_array($catalogue, $this->catalogues)) {
return;
}
if ($this->source->load($catalogue)) {
$this->messages[$catalogue] = $this->source->read();
$this->catalogues[] = $catalogue;
}
}
