tree_utils.py 文件源码

def to_nltk_tree(node):
    """Creates a fixed representation of a Spacy dependency tree as a NLTK tree. This fixed representation
    will be formed by the Spacy's node attributes: dep_, orth_ and pos_.

    Args:
        node: The starting node from the tree in which the transformation will occur.

    Returns:
        A NLTK Tree (nltk.tree)
    """
    if node.n_lefts + node.n_rights > 0:
        return Tree(node.dep_+"/"+node.orth_+"/"+node.pos_, [to_nltk_tree(child) for child in node.children])
    else:
        return node.dep_+"/"+node.orth_+"/"+node.pos_