BNFNode :: parent - Get parent BNF node
The function returns the parent BNFNode. In order to avoid exceptions, one may call hasParent() before.
Return value: BNF tree node ( odaba::BNFNode & )
Implementation details
odaba::BNFNode
BNFNode :: parent ( )
The function returns the parent BNFNode, when existing. When no parent BNFNode exists, the function throes an exception.