Lua  is  free  software  distributed  under the terms of the MIT licence
reproduced below.  Lua may be used for any purpose, including commercial
purposes,  at  absolutely  no cost.  No paperwork, no royalties, no GNU‐
like "copyleft" restrictions, either.  Just download it and use it.  Lua
is  certified Open Source software.  Its licence is compatible with GPL.
Lua is not in the public domain and PUC‐Rio keeps its copyright.

The spirit of the Lua licence is that you are free to use  Lua  for  any
purpose  at  no  cost without having to ask us.  The only requirement is
that if you do use Lua, then you should give us credit by including  the
copyright  notice  somewhere  in  your  product or its documentation.  A
nice, but optional, way to give us further credit is to  include  a  Lua
logo and a link to our site in a web page for your product.

The  Lua language is entirely designed, implemented, and maintained by a
team at PUC‐Rio in Brazil.   The  implementation  is  not  derived  from
licensed software.

    Copyright (C) 1994‐2017 Lua.org, PUC‐Rio.

    Permission  is  hereby  granted,  free  of  charge,  to  any  person
obtaining a copy of this software  and  associated  documentation  files
(the "Software"), to deal in the Software without restriction, including
without limitation the rights to  use,  copy,  modify,  merge,  publish,
distribute,  sublicense,  and/or  sell  copies  of  the Software, and to
permit persons to whom the Software is furnished to do  so,  subject  to
the following conditions:

    The  above  copyright  notice  and  this  permission notice shall be
included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
EXPRESS  OR  IMPLIED,  INCLUDING  BUT  NOT  LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE  AND  NONINFRINGEMENT.
IN  NO  EVENT  SHALL  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN  AN  ACTION  OF  CONTRACT,
TORT  OR  OTHERWISE,  ARISING  FROM,  OUT  OF  OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
