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- from __future__ import absolute_import, division, unicode_literals
-
- from datrie import Trie as DATrie
- from pip._vendor.six import text_type
-
- from ._base import Trie as ABCTrie
-
-
- class Trie(ABCTrie):
- def __init__(self, data):
- chars = set()
- for key in data.keys():
- if not isinstance(key, text_type):
- raise TypeError("All keys must be strings")
- for char in key:
- chars.add(char)
-
- self._data = DATrie("".join(chars))
- for key, value in data.items():
- self._data[key] = value
-
- def __contains__(self, key):
- return key in self._data
-
- def __len__(self):
- return len(self._data)
-
- def __iter__(self):
- raise NotImplementedError()
-
- def __getitem__(self, key):
- return self._data[key]
-
- def keys(self, prefix=None):
- return self._data.keys(prefix)
-
- def has_keys_with_prefix(self, prefix):
- return self._data.has_keys_with_prefix(prefix)
-
- def longest_prefix(self, prefix):
- return self._data.longest_prefix(prefix)
-
- def longest_prefix_item(self, prefix):
- return self._data.longest_prefix_item(prefix)
|
