cfad47cfa3/tads3/LICENSE.TXT

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TADS 3 FREEWARE SOURCE CODE LICENSE
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The TADS 3 source code is Copyright 1998, 2003 by Michael J. Roberts.
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The author hereby grants you permission to use, copy, and distribute
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this software, if you agree to the following conditions:
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    1. You must include this license and the copyright notice with
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       all copies.
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    2. You may not require or collect a fee for copies of this
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       software, or any part of this software, that you give to
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       other people.
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    3. You may not include this software with any other software
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       for which a fee is collected.
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    4. You may not modify this software except as permitted below
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       (see "derivative works"), and each copy you make and
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       distribute must be a full and complete copy of the software
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       you originally received.
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    5. Anyone to whom you give a copy of this software receives
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       all of the same permissions that you did under this license
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       and is subject to all of the same restrictions.
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    6. You are not allowed to create derivative works, which are
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       works that contain or are based on all or part of this work,
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       except under the conditions described below.
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    7. Any derivative works are subject to this same license.
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Derivative Works
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----------------
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This source code is distributed for the specific purpose of porting
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TADS, so that you can run the software on any system of your choosing.
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All other derivative works are prohibited without the written
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permission of the author.  I want to avoid the creation of variations
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on the system, because it leads to confusion on the part of users if
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there are multiple incompatible flavors floating around.  However, if
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you have a specific idea in mind, I'd be happy to at least consider
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it.  Please contact the author if you have any questions about this or
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if you would like permission to create a derived work.  
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If you port TADS to a new platform, the author does grant permission
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for you to distribute your ported version - I encourage it, in fact.
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I ask that you include your contact information in any distribution
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package you create, so that users of your version will know how to
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contact you if they have any questions relating specifically to your
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version.
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