#!/usr/bin/python
# -*- coding: utf-8 -*-
"""Recursive descent module."""
import itertools
from typing import Generator
from jsonpath2.node import MatchData, Node
from jsonpath2.nodes.subscript import SubscriptNode
from jsonpath2.subscripts.wildcard import WildcardSubscript
[docs]class RecursiveDescentNode(Node):
"""Recursive descent node class."""
[docs] def __init__(self, next_node: Node):
"""Save the next node."""
super(RecursiveDescentNode, self).__init__()
self.next_node = next_node
def __jsonpath__(self) -> Generator[str, None, None]:
"""Dump the string for the previous node."""
yield '..'
for next_node_token in self.next_node.__jsonpath__():
yield next_node_token
[docs] def match(self, root_value: object, current_value: object) -> Generator[MatchData, None, None]:
"""Match the root value with the current value."""
# NOTE Depth-first
return itertools.chain(
self.next_node.match(root_value, current_value),
SubscriptNode(self, [WildcardSubscript()]).match(
root_value, current_value)
)