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License
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-------
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Copyright (c) 2013-2018, Kim Davies. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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#. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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#. Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided with
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the distribution.
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#. Neither the name of the copyright holder nor the names of the
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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#. THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS "AS IS" AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGE.
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Portions of the codec implementation and unit tests are derived from the
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Python standard library, which carries the `Python Software Foundation
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License <https://docs.python.org/2/license.html>`_:
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Copyright (c) 2001-2014 Python Software Foundation; All Rights Reserved
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Portions of the unit tests are derived from the Unicode standard, which
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is subject to the Unicode, Inc. License Agreement:
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Copyright (c) 1991-2014 Unicode, Inc. All rights reserved.
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Distributed under the Terms of Use in
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<http://www.unicode.org/copyright.html>.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of the Unicode data files and any associated documentation
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(the "Data Files") or Unicode software and any associated documentation
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(the "Software") to deal in the Data Files or Software
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without restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, and/or sell copies of
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the Data Files or Software, and to permit persons to whom the Data Files
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or Software are furnished to do so, provided that
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(a) this copyright and permission notice appear with all copies
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of the Data Files or Software,
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(b) this copyright and permission notice appear in associated
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documentation, and
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(c) there is clear notice in each modified Data File or in the Software
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as well as in the documentation associated with the Data File(s) or
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Software that the data or software has been modified.
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THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF
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ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS
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NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL
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DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THE DATA FILES OR SOFTWARE.
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Except as contained in this notice, the name of a copyright holder
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shall not be used in advertising or otherwise to promote the sale,
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use or other dealings in these Data Files or Software without prior
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written authorization of the copyright holder.
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