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----------------------------------
    The linuxdoc-tools license
----------------------------------

This is `linuxdoc-tools', a series of tools to implement the Linux
Documentation Project HOWTO and book styles in SGML.

--

linuxdoc-tools is derived from linuxdoc-SGML, originally written by
Matt Welsh and later maintained by Cees de Groot. Linuxdoc-SGML is
based on James Clark's sgmls parser, and the QWERTZ DTD by Tom
Gordon. Magnus Alvestad provided the current HTML support. For
the rest of linuxdoc-SGML,

  Copyright (C) 1994-1996 Matt Welsh <mdw@cs.cornell.edu>
  Copyright (C) 1996-1998 Cees de Groot <cg@pobox.com>

Original Linuxdoc-SGML itself does not have any limitations.
Everything not having explicit additional conditions can be freely
used, modified, and redistributed, under the usual fair use clauses:

 * No warranty. Use at your own risk.
 * Do not pretend to have written what you did not (Preserve credits
   and Copyright notices of the different elements if present).

Since then, lots of smaller and bigger changes resulted in a rename
to SGML-Tools (and then to SGMLtools, the hyphen caused confusion)
to indicate that it wasn't just for Linux anymore. See files
CHANGES.old-v1 and CONTRIBUTORS.old-v1 for changelog and list of
contributors to old linuxdoc-sgml and sgmltools-v1.

When sgml-tools dropped support for the linuxdoc DTD, Taketoshi Sano
<sano@debian.org> forked the code to linuxdoc-tools. See README file.

Changes after the fork

  Copyright (C) 1999-2002 Taketoshi Sano <sano@debian.org>
  Copyright (C) 2000      Juan Jose Amor
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  Copyright (C) 2007-2018 Agustin Martin Domingo <agmartin@debian.org>
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Unless conflicting with other licenses, changes by Agustin Martin
Domingo are free software: you can redistribute and/or modify them
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version. Otherwise they honour previous
license.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
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In Debian systems you can find a copy under /usr/share/common-licenses.
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--
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See below for more specific Copyright notices for

  sgmls-1.1/LICENSE for sgmlsasp translator license.
  iso-entities/COPYING for iso-entities license.
  entity-map/COPYING for entity-map license.

----------------------------------
    The sgmls license
----------------------------------

                 LICENSE AND DISCLAIMER OF WARRANTIES

      Standard Generalized Markup Language Users' Group (SGMLUG)
                         SGML Parser Materials

                              1. License

SGMLUG hereby grants to any user: (1) an irrevocable royalty-free,
worldwide, non-exclusive license to use, execute, reproduce, display,
perform and distribute copies of, and to prepare derivative works
based upon these materials; and (2) the right to authorize others to
do any of the foregoing.

                     2. Disclaimer of Warranties

(a) The SGML Parser Materials are provided "as is" to any USER.  USER
assumes responsibility for determining the suitability of the SGML
Parser Materials for its use and for results obtained.  SGMLUG makes
no warranty that any errors have been eliminated from the SGML Parser
Materials or that they can be eliminated by USER.  SGMLUG shall not
provide any support maintenance or other aid to USER or its licensees
with respect to SGML Parser Materials.  SGMLUG shall not be
responsible for losses of any kind resulting from use of the SGML
Parser Materials including (without limitation) any liability for
business expense, machine downtime, or damages caused to USER or third
parties by any deficiency, defect, error, or malfunction.

(b) SGMLUG DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, ARISING OUT
OF OR RELATING TO THE SGML PARSER MATERIALS OR ANY USE THEREOF,
INCLUDING (WITHOUT LIMITATION) ANY WARRANTY WHATSOEVER AS TO THE
FITNESS FOR A PARTICULAR USE OR THE MERCHANTABILITY OF THE SGML PARSER
MATERIALS.

(c) In no event shall SGMLUG be liable to USER or third parties
licensed by USER for any indirect, special, incidental, or
consequential damages (including lost profits).
(d) SGMLUG has no knowledge of any conditions that would impair its right
to license the SGML Parser Materials.  Notwithstanding the foregoing,
SGMLUG does not make any warranties or representations that the
SGML Parser Materials are free of claims by third parties of patent,
copyright infringement or the like, nor does SGMLUG assume any
liability in respect of any such infringement of rights of third
parties due to USER's operation under this license.

----------------------------------
    The iso-entities license
----------------------------------

The ISO character entity sets are distributed under the following
copyright:

     (C) International Organization for Standardization 1986
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.

The remaining files, the ``packaging'', are distributed under the
following copyright:

Copyright (C) 1997 Ken MacLeod

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 KEN MACLEOD 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.

Except as contained in this notice, the name of Ken MacLeod shall not
be used in advertising or otherwise to promote the sale, use or other
dealings in this Software without prior written authorization from
Ken MacLeod.

----------------------------------
    The entity-map license
----------------------------------

Copyright (C) 1997 Ken MacLeod

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.
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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 KEN MACLEOD 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.
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Except as contained in this notice, the name of Ken MacLeod shall not
be used in advertising or otherwise to promote the sale, use or other
dealings in this Software without prior written authorization from
Ken MacLeod.