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COPYING
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@ -1,65 +1,65 @@
== GNU GENERAL PUBLIC LICENSE == GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Copyright (C) 1989, 1991 Free Software Foundation, Inc. Preamble
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
=== Preamble === The licenses for most software are designed to take away your
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to the GNU Lesser General Public License instead.) You can apply it to
your programs, too. your programs, too.
When we speak of free software, we are referring to freedom, not When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things. in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights. anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it. distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their source code. And you must show them these terms so they know their
rights. rights.
We protect your rights with two steps: (1) copyright the software, and We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy, (2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software. distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original that any problems introduced by others will not reflect on the original
authors' reputations. authors' reputations.
Finally, any free program is threatened constantly by software Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all. patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and The precise terms and conditions for copying, distribution and
modification follow. modification follow.
== TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION == GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
'''0.''' This License applies to any program or other work which contains 0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below, under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program" refers to any such program or work, and a "work based on the Program"
@ -76,7 +76,7 @@ is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program). Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does. Whether that is true depends on what the Program does.
'''1.''' You may copy and distribute verbatim copies of the Program's 1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the copyright notice and disclaimer of warranty; keep intact all the
@ -87,29 +87,29 @@ along with the Program.
You may charge a fee for the physical act of transferring a copy, and You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee. you may at your option offer warranty protection in exchange for a fee.
'''2.''' You may modify your copy or copies of the Program or any portion 2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1 distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions: above, provided that you also meet all of these conditions:
'''a)''' You must cause the modified files to carry prominent notices a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change. stating that you changed the files and the date of any change.
'''b)''' You must cause any work that you distribute or publish, that in b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License. parties under the terms of this License.
'''c)''' If the modified program normally reads commands interactively c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on does not normally print such an announcement, your work based on
the Program is not required to print an announcement.) the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program, identifiable sections of that work are not derived from the Program,
@ -131,26 +131,26 @@ with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under a storage or distribution medium does not bring the other work under
the scope of this License. the scope of this License.
'''3.''' You may copy and distribute the Program (or a work based on it, 3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following: Sections 1 and 2 above provided that you also do one of the following:
'''a)''' Accompany it with the complete corresponding machine-readable a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or, 1 and 2 above on a medium customarily used for software interchange; or,
'''b)''' Accompany it with a written offer, valid for at least three b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or, customarily used for software interchange; or,
'''c)''' Accompany it with the information you received as to the offer c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such received the program in object code or executable form with such
an offer, in accord with Subsection b above.) an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source making modifications to it. For an executable work, complete source
@ -169,7 +169,7 @@ access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not distribution of the source code, even though third parties are not
compelled to copy the source along with the object code. compelled to copy the source along with the object code.
'''4.''' You may not copy, modify, sublicense, or distribute the Program 4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License. void, and will automatically terminate your rights under this License.
@ -177,7 +177,7 @@ However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such this License will not have their licenses terminated so long as such
parties remain in full compliance. parties remain in full compliance.
'''5.''' You are not required to accept this License, since you have not 5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by prohibited by law if you do not accept this License. Therefore, by
@ -186,7 +186,7 @@ Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying all its terms and conditions for copying, distributing or modifying
the Program or works based on it. the Program or works based on it.
'''6.''' Each time you redistribute the Program (or any work based on the 6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further these terms and conditions. You may not impose any further
@ -194,7 +194,7 @@ restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to You are not responsible for enforcing compliance by third parties to
this License. this License.
'''7.''' If, as a consequence of a court judgment or allegation of patent 7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues), infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not otherwise) that contradict the conditions of this License, they do not
@ -226,7 +226,7 @@ impose that choice.
This section is intended to make thoroughly clear what is believed to This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License. be a consequence of the rest of this License.
'''8.''' If the distribution and/or use of the Program is restricted in 8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding may add an explicit geographical distribution limitation excluding
@ -234,7 +234,7 @@ those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License. the limitation as if written in the body of this License.
'''9.''' The Free Software Foundation may publish revised and/or new versions 9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to be similar in spirit to the present version, but may differ in detail to
address new problems or concerns. address new problems or concerns.
@ -247,7 +247,7 @@ Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software this License, you may choose any version ever published by the Free Software
Foundation. Foundation.
'''10.''' If you wish to incorporate parts of the Program into other free 10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes Software Foundation, write to the Free Software Foundation; we sometimes
@ -255,9 +255,9 @@ make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally. of promoting the sharing and reuse of software generally.
=== NO WARRANTY === NO WARRANTY
'''11.''' BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
@ -267,7 +267,7 @@ TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION. REPAIR OR CORRECTION.
'''12.''' IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
@ -277,47 +277,45 @@ YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. POSSIBILITY OF SUCH DAMAGES.
'''END OF TERMS AND CONDITIONS''' END OF TERMS AND CONDITIONS
== How to Apply These Terms to Your New Programs == How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms. free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found. the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.> <one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
Copyright (C) <year> <name of author> This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is free software; you can redistribute it and/or modify This program is distributed in the hope that it will be useful,
it under the terms of the GNU General Public License as published by but WITHOUT ANY WARRANTY; without even the implied warranty of
the Free Software Foundation; either version 2 of the License, or MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
(at your option) any later version. GNU General Public License for more details.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail. Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this If the program is interactive, make it output a short notice like this
when it starts in an interactive mode: when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details. under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may parts of the General Public License. Of course, the commands you use may
@ -328,15 +326,14 @@ You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names: necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker. `Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989 <signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. Public License instead of this License.