rules

BSD-3-Clause, GooglePatentClause

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Copyright (c) 2010 The Golint Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

   * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above
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documentation and/or other materials provided with the distribution.
   * Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.

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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made, use,
offer to sell, sell, import, and otherwise transfer this implementation of Go,
where such license applies only to those patent claims licensable by Google
that are necessarily infringed by use of this implementation of Go. If You
institute patent litigation against any entity (including a cross-claim or
counterclaim in a lawsuit) alleging that this implementation of Go or a
Contribution incorporated within this implementation of Go constitutes direct
or contributory patent infringement, then any patent licenses granted to You
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