const_iterator item(DocIterator const & dit) const;
/// Look for a TocItem given its depth and string.
/// \return The first matching item.
/// \retval end() if no item was found.
const_iterator item(DocIterator const & dit) const;
/// Look for a TocItem given its depth and string.
/// \return The first matching item.
/// \retval end() if no item was found.