normalizeWholeTree
public Tree normalizeWholeTree(Tree tree,
TreeFactory tf)
Normalize a whole tree -- one can assume that this is the
root. This implementation deletes empty elements (ones with
nonterminal tag label '-NONE-') from the tree, and splices out
unary A over A nodes. It does work for a null tree.
- Overrides:
normalizeWholeTree
in class BobChrisTreeNormalizer
- Parameters:
tree
- The tree to be normalized
tf
- the TreeFactory to create new nodes (if needed)
- Returns:
- Tree the normalized tree