/**
* Iterates backwards through the tag stack to find a container
* tag of the specified name
**/
public static function getContainer($name = NULL, $depth = 1)
{
// Rekey the tagStack array incase its gotten out of step
self::$tagStack = array_values(self::$tagStack);
end(self::$tagStack);
$i = key(self::$tagStack);
if ($name === NULL) {
while ($depth > 1) {
$depth--;
prev(self::$tagStack);
}
return current(self::$tagStack[$i]);
} else {
while ($depth > 0 && $i >= 0) {
$elem = self::$tagStack[$i];
// Loop up the tagStack looking for a tag with a matching name, until we reach the top
while (($ret = !isset($elem->token['tag']) || $elem->token['tag'] != $name) && $i > 0) {
--$i;
$elem = self::$tagStack[$i];
}
--$depth;
--$i;
}
// If no tags matched the specified name, return nothing
if ($ret) {
return NULL;
}
return $elem;
}
}
public static function &getParent($name = NULL)
{
self::$tagStack = array_values(self::$tagStack);
$i = count(self::$tagStack) - 1;
if ($name === NULL) {
return self::$tagStack[$i];
} else {
$elem =& self::$tagStack[$i];
while ($elem->token['tag'] != $name && $i > 0) {
--$i;
$elem =& self::$tagStack[$i];
}
return $elem;
}
}
