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Copy pathfold_case_dict.py
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118 lines (87 loc) · 3.01 KB
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# -*- coding: utf-8 -*-
# MinIO Python Library for Amazon S3 Compatible Cloud Storage, (C)
# 2017 MinIO, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
minio.fold_case_dict
This module implements a case insensitive dictionary.
:copyright: (c) 2017 by MinIO, Inc.
:license: Apache 2.0, see LICENSE for more details.
"""
class FoldCaseDict(dict):
def __init__(self, dictionary={}):
self._data = self.__create(dictionary)
def __create(self, value):
if not isinstance(value, dict):
return value
data = {}
for k, v in value.items():
data[k.lower()] = FoldCaseDict(v) if isinstance(v, dict) else v
return data
def __getitem__(self, key):
return self._data.__getitem__(key.lower())
def __contains__(self, key):
return self._data.__contains__(key.lower())
def __setitem__(self, key, value):
self._data.__setitem__(key.lower(), self.__create(value))
def __delitem__(self, key):
self._data.__delitem__(key.lower())
def __iter__(self):
return self._data.__iter__()
def __len__(self):
return self._data.__len__()
def __eq__(self, other):
if isinstance(other, dict):
other = FoldCaseDict(other)
elif isinstance(other, FoldCaseDict):
pass
else:
raise NotImplementedError
return self._data.__eq__(other._data)
def __repr__(self):
return self._data.__repr__()
def get(self, key, default=None):
return self._data.get(key.lower(), default)
def has_key(self, key):
return self._data.has_key(key.lower())
def items(self):
return self._data.items()
def keys(self):
return self._data.keys()
def values(self):
return self._data.values()
def iteritems(self):
return self._data.iteritems()
def iterkeys(self):
for k in self._data.keys():
yield k
def itervalues(self):
for v in self._data.values():
yield v
def update(self, dictionary):
if isinstance(dictionary, dict):
dictionary = FoldCaseDict(dictionary)
elif isinstance(dictionary, FoldCaseDict):
pass
else:
raise TypeError
self._data.update(dictionary._data)
def copy(self):
return FoldCaseDict(self._data.copy())
def clear(self):
self._data = {}
def pop(self, key):
return self._data.pop(key.lower())
def popitem(self):
return self._data.popitem()