OFA-OCR / utils /trie.py
JustinLin610's picture
first commit
ee21b96
raw
history blame
718 Bytes
# Copyright 2022 The OFA-Sys Team.
# All rights reserved.
# This source code is licensed under the Apache 2.0 license
# found in the LICENSE file in the root directory.
from collections import defaultdict
class TreeNode():
def __init__(self):
self.child = defaultdict(TreeNode)
class Trie:
def __init__(self, eos):
self.root = TreeNode()
self.eos = eos
def insert(self, word):
cur = self.root
for c in word:
cur = cur.child[c]
def get_next_layer(self, word):
cur = self.root
for c in word:
cur = cur.child.get(c)
if cur is None:
return [self.eos]
return list(cur.child.keys())