Copyright (C) 2019-2021 Carrot Search s.c.
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 copyright notice, this
  list of conditions and the following  disclaimer in  the documentation  and/or
  other materials provided with the distribution. 

- Neither the name  of the Carrot2 Project  nor  the names  of  its contributors 
  may  be used  to endorse  or  promote  products derived   from  this  software 
  without specific prior written permission.

- We kindly request that you include in the end-user documentation provided with
  the redistribution and/or in the software itself an acknowledgement equivalent 
  to  the  following:  "This product includes  software developed by the Carrot2 
  Project."

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"  AND
ANY EXPRESS OR  IMPLIED WARRANTIES, INCLUDING,  BUT NOT LIMITED  TO, THE IMPLIED
WARRANTIES  OF  MERCHANTABILITY  AND  FITNESS  FOR  A  PARTICULAR  PURPOSE   ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE  FOR
ANY DIRECT, INDIRECT, INCIDENTAL,  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  DAMAGES
(INCLUDING, BUT  NOT LIMITED  TO, PROCUREMENT  OF SUBSTITUTE  GOODS OR SERVICES;
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
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.