private static void DependencyObjectifyHelper <E>(Tree t, Tree root, IHeadFinder hf, ICollection <E> c, IDependencyTyper <E> typer)
{
if (t.IsLeaf() || t.IsPreTerminal())
{
return;
}
Tree headDtr = hf.DetermineHead(t);
foreach (Tree child in t.Children())
{
DependencyObjectifyHelper(child, root, hf, c, typer);
if (child != headDtr)
{
c.Add(typer.MakeDependency(headDtr, child, root));
}
}
}
/// <summary>
/// Returns the set of dependencies in a tree, according to some
/// <see cref="Edu.Stanford.Nlp.Trees.IDependencyTyper{T}"/>
/// .
/// </summary>
public static ICollection <E> DependencyObjectify <E>(Tree t, IHeadFinder hf, ITreeTransformer collinizer, IDependencyTyper <E> typer)
{
ICollection <E> deps = new List <E>();
Tree t1 = collinizer.TransformTree(t);
if (t1 == null)
{
return(deps);
}
DependencyObjectifyHelper(t1, t1, hf, deps, typer);
return(deps);
}