59 lines
1.3 KiB
Python
59 lines
1.3 KiB
Python
#!/usr/bin/python3 -i
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#
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# Copyright (c) 2019 Collabora, Ltd.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Author(s): Ryan Pavlik <ryan.pavlik@collabora.com>
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"""Provides general-purpose data structures."""
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class DictOfStringSets:
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"""A dictionary where the values are sets of strings.
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Has some convenience functions to allow easier maintenance via
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the .add method."""
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def __init__(self, d=None):
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self.d = {}
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if d:
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for k, v in d.items():
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self.add(k, v)
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def __getitem__(self, k):
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return self.d[k]
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def __contains__(self, k):
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return k in self.d
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def get(self, k, default=None):
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return self.d.get(k, default)
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def get_dict(self):
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return self.d
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def items(self):
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"""Return an iterator like dict().items()."""
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return self.d.items()
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def keys(self):
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"""Return an iterator over keys."""
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return self.d.keys()
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def values(self):
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"""Return an iterator over values."""
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return self.d.values()
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def add_key(self, k):
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"""Ensure the set for the given key exists."""
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if k not in self.d:
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self.d[k] = set()
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def add(self, k, v):
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self.add_key(k)
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if isinstance(v, str):
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v = (v, )
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if not isinstance(v, set):
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v = set(v)
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self.d[k].update(v)
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