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# -*- coding: utf-8 -*- |
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# Copyright 2018 by Christopher C. Little. |
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# This file is part of Abydos. |
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# |
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# Abydos is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Abydos is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with Abydos. If not, see <http://www.gnu.org/licenses/>. |
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"""abydos.distance._distance. |
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The distance._distance module implements abstract class _Distance. |
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""" |
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from __future__ import ( |
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absolute_import, |
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division, |
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print_function, |
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unicode_literals, |
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) |
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class _Distance(object): |
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"""Abstract Distance class.""" |
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def sim(self, src, tar, *args, **kwargs): |
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"""Return similarity. |
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Parameters |
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---------- |
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src : str |
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Source string for comparison |
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tar : str |
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Target string for comparison |
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*args |
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Variable length argument list. |
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**kwargs |
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Arbitrary keyword arguments. |
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Returns |
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------- |
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float |
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Similarity |
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""" |
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return 1.0 - self.dist(src, tar, *args, **kwargs) |
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def dist(self, src, tar, *args, **kwargs): |
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"""Return distance. |
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Parameters |
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---------- |
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src : str |
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Source string for comparison |
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tar : str |
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Target string for comparison |
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*args |
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Variable length argument list. |
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**kwargs |
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Arbitrary keyword arguments. |
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Returns |
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------- |
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float |
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Distance |
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""" |
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return 1.0 - self.sim(src, tar, *args, **kwargs) |
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def dist_abs(self, src, tar, *args, **kwargs): |
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"""Return absolute distance. |
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Parameters |
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---------- |
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src : str |
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Source string for comparison |
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tar : str |
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Target string for comparison |
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*args |
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Variable length argument list. |
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**kwargs |
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Arbitrary keyword arguments. |
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Returns |
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------- |
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int |
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Absolute distance |
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""" |
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return self.dist(src, tar, *args, **kwargs) |
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if __name__ == '__main__': |
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import doctest |
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doctest.testmod() |
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chrislit /
abydos
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