protected BookExport::exportTraverse(array $tree, $callable)

public BookManager::bookTreeCheckAccess(&$tree, $node_links = array())

public BookManagerInterface::deleteFromBook($nid)

public BookSettingsForm::buildForm(array $form, FormStateInterface

public BookRemoveForm::getDescription()

protected BookManager::recurseTableOfContents(array $tree, $indent, array

The node storage. Type:

public BookOutlineStorageInterface::upd

protected BookManager::flatBookTree(array $tree, array &$flat)

protected BookManager::buildBookOutlineData(array $links, array $parents