public interface HeadFinder extends Serializable
Modifier and Type | Method and Description |
---|---|
Tree |
determineHead(Tree t)
Determine which daughter of the current parse tree is the head.
|
Tree |
determineHead(Tree t,
Tree parent)
Determine which daughter of the current parse tree is the head
given the parent of the tree.
|
Tree determineHead(Tree t)
t
- The parse tree to examine the daughters ofIllegalStateException
- If a subclass has missing or badly
formatted head rule dataIllegalArgumentException
- If the argument Tree has unexpected
phrasal categories in it (and the implementation doesn't just use
some heuristic to always determine some head).Tree determineHead(Tree t, Tree parent)
t
- The parse tree to examine the daughters ofparent
- The parent of tree t