/**
* Sorts INode's children by key.
*
*
* @param INode $node the root node
* @return void
*/
protected function sortChildren(INode $node)
{
$children = $node->getChildren();
$node->removeChildren();
foreach ($this->sortNodes($children) as $index => $child) {
$this->sortChildren($child);
// recursion
$node->addChild($child, $index);
}
}
/**
* Sorts INode's children by key.
*
*
* @param INode $node the root node
* @return void
*/
protected function sortChildren(INode $node)
{
if ($this->sorting !== NULL) {
$children = $node->getChildren();
$node->removeChildren();
$sortedNodes = call_user_func($this->sorting, $children);
foreach ($sortedNodes as $index => $child) {
$this->sortChildren($child);
// recursion
$node->addChild($child, $index);
}
}
return $this;
}
