BBCode::Internal_RewindToClass( $class_list )

function Internal_RewindToClass($class_list) {
$pos = count($this->stack) - 1;
while ($pos >= 0 && !in_array($this->stack[$pos][BBCODE_STACK_CLASS], $class_list))
$pos--;
if ($pos < 0) {
if (!in_array($this->root_class, $class_list))
return false;
}
$output = $this->Internal_GenerateOutput($pos+1);
while (count($output)) {
$token = array_pop($output);
$token[BBCODE_STACK_CLASS] = $this->current_class;
$this->stack[] = $token;
}
return true;
}