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1Copyright (C) 2006 Hong Jen Yee (PCMan)
2Copyright (C) 2002 Anatoly Asviyan (aka Arsen)
3Copyright (C) 2000 Peter Zelezny
4
5Permission is hereby granted, free of charge, to any person obtaining a
6copy of this software and associated documentation files (the "Soft-
7ware"), to deal in the Software without restriction, including without
8limitation the rights to use, copy, modify, merge, publish, distribute,
9sublicense, and/or sell copies of the Software, and to permit persons to
10whom the Software is furnished to do so, subject to the following condi-
11tions:
12
13The above copyright notice and this permission notice shall be included
14in all copies or substantial portions of the Software.
15
16THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
18ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
19SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
21OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22THE SOFTWARE.
23
24 GNU GENERAL PUBLIC LICENSE
25 Version 2, June 1991
26
27 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
28 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 Everyone is permitted to copy and distribute verbatim copies
30 of this license document, but changing it is not allowed.
31
32 Preamble
33
34 The licenses for most software are designed to take away your
35freedom to share and change it. By contrast, the GNU General Public
36License is intended to guarantee your freedom to share and change free
37software--to make sure the software is free for all its users. This
38General Public License applies to most of the Free Software
39Foundation's software and to any other program whose authors commit to
40using it. (Some other Free Software Foundation software is covered by
41the GNU Library General Public License instead.) You can apply it to
42your programs, too.
43
44 When we speak of free software, we are referring to freedom, not
45price. Our General Public Licenses are designed to make sure that you
46have the freedom to distribute copies of free software (and charge for
47this service if you wish), that you receive source code or can get it
48if you want it, that you can change the software or use pieces of it
49in new free programs; and that you know you can do these things.
50
51 To protect your rights, we need to make restrictions that forbid
52anyone to deny you these rights or to ask you to surrender the rights.
53These restrictions translate to certain responsibilities for you if you
54distribute copies of the software, or if you modify it.
55
56 For example, if you distribute copies of such a program, whether
57gratis or for a fee, you must give the recipients all the rights that
58you have. You must make sure that they, too, receive or can get the
59source code. And you must show them these terms so they know their
60rights.
61
62 We protect your rights with two steps: (1) copyright the software, and
63(2) offer you this license which gives you legal permission to copy,
64distribute and/or modify the software.
65
66 Also, for each author's protection and ours, we want to make certain
67that everyone understands that there is no warranty for this free
68software. If the software is modified by someone else and passed on, we
69want its recipients to know that what they have is not the original, so
70that any problems introduced by others will not reflect on the original
71authors' reputations.
72
73 Finally, any free program is threatened constantly by software
74patents. We wish to avoid the danger that redistributors of a free
75program will individually obtain patent licenses, in effect making the
76program proprietary. To prevent this, we have made it clear that any
77patent must be licensed for everyone's free use or not licensed at all.
78
79 The precise terms and conditions for copying, distribution and
80modification follow.
81\f
82 GNU GENERAL PUBLIC LICENSE
83 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
84
85 0. This License applies to any program or other work which contains
86a notice placed by the copyright holder saying it may be distributed
87under the terms of this General Public License. The "Program", below,
88refers to any such program or work, and a "work based on the Program"
89means either the Program or any derivative work under copyright law:
90that is to say, a work containing the Program or a portion of it,
91either verbatim or with modifications and/or translated into another
92language. (Hereinafter, translation is included without limitation in
93the term "modification".) Each licensee is addressed as "you".
94
95Activities other than copying, distribution and modification are not
96covered by this License; they are outside its scope. The act of
97running the Program is not restricted, and the output from the Program
98is covered only if its contents constitute a work based on the
99Program (independent of having been made by running the Program).
100Whether that is true depends on what the Program does.
101
102 1. You may copy and distribute verbatim copies of the Program's
103source code as you receive it, in any medium, provided that you
104conspicuously and appropriately publish on each copy an appropriate
105copyright notice and disclaimer of warranty; keep intact all the
106notices that refer to this License and to the absence of any warranty;
107and give any other recipients of the Program a copy of this License
108along with the Program.
109
110You may charge a fee for the physical act of transferring a copy, and
111you may at your option offer warranty protection in exchange for a fee.
112
113 2. You may modify your copy or copies of the Program or any portion
114of it, thus forming a work based on the Program, and copy and
115distribute such modifications or work under the terms of Section 1
116above, provided that you also meet all of these conditions:
117
118 a) You must cause the modified files to carry prominent notices
119 stating that you changed the files and the date of any change.
120
121 b) You must cause any work that you distribute or publish, that in
122 whole or in part contains or is derived from the Program or any
123 part thereof, to be licensed as a whole at no charge to all third
124 parties under the terms of this License.
125
126 c) If the modified program normally reads commands interactively
127 when run, you must cause it, when started running for such
128 interactive use in the most ordinary way, to print or display an
129 announcement including an appropriate copyright notice and a
130 notice that there is no warranty (or else, saying that you provide
131 a warranty) and that users may redistribute the program under
132 these conditions, and telling the user how to view a copy of this
133 License. (Exception: if the Program itself is interactive but
134 does not normally print such an announcement, your work based on
135 the Program is not required to print an announcement.)
136\f
137These requirements apply to the modified work as a whole. If
138identifiable sections of that work are not derived from the Program,
139and can be reasonably considered independent and separate works in
140themselves, then this License, and its terms, do not apply to those
141sections when you distribute them as separate works. But when you
142distribute the same sections as part of a whole which is a work based
143on the Program, the distribution of the whole must be on the terms of
144this License, whose permissions for other licensees extend to the
145entire whole, and thus to each and every part regardless of who wrote it.
146
147Thus, it is not the intent of this section to claim rights or contest
148your rights to work written entirely by you; rather, the intent is to
149exercise the right to control the distribution of derivative or
150collective works based on the Program.
151
152In addition, mere aggregation of another work not based on the Program
153with the Program (or with a work based on the Program) on a volume of
154a storage or distribution medium does not bring the other work under
155the scope of this License.
156
157 3. You may copy and distribute the Program (or a work based on it,
158under Section 2) in object code or executable form under the terms of
159Sections 1 and 2 above provided that you also do one of the following:
160
161 a) Accompany it with the complete corresponding machine-readable
162 source code, which must be distributed under the terms of Sections
163 1 and 2 above on a medium customarily used for software interchange; or,
164
165 b) Accompany it with a written offer, valid for at least three
166 years, to give any third party, for a charge no more than your
167 cost of physically performing source distribution, a complete
168 machine-readable copy of the corresponding source code, to be
169 distributed under the terms of Sections 1 and 2 above on a medium
170 customarily used for software interchange; or,
171
172 c) Accompany it with the information you received as to the offer
173 to distribute corresponding source code. (This alternative is
174 allowed only for noncommercial distribution and only if you
175 received the program in object code or executable form with such
176 an offer, in accord with Subsection b above.)
177
178The source code for a work means the preferred form of the work for
179making modifications to it. For an executable work, complete source
180code means all the source code for all modules it contains, plus any
181associated interface definition files, plus the scripts used to
182control compilation and installation of the executable. However, as a
183special exception, the source code distributed need not include
184anything that is normally distributed (in either source or binary
185form) with the major components (compiler, kernel, and so on) of the
186operating system on which the executable runs, unless that component
187itself accompanies the executable.
188
189If distribution of executable or object code is made by offering
190access to copy from a designated place, then offering equivalent
191access to copy the source code from the same place counts as
192distribution of the source code, even though third parties are not
193compelled to copy the source along with the object code.
194\f
195 4. You may not copy, modify, sublicense, or distribute the Program
196except as expressly provided under this License. Any attempt
197otherwise to copy, modify, sublicense or distribute the Program is
198void, and will automatically terminate your rights under this License.
199However, parties who have received copies, or rights, from you under
200this License will not have their licenses terminated so long as such
201parties remain in full compliance.
202
203 5. You are not required to accept this License, since you have not
204signed it. However, nothing else grants you permission to modify or
205distribute the Program or its derivative works. These actions are
206prohibited by law if you do not accept this License. Therefore, by
207modifying or distributing the Program (or any work based on the
208Program), you indicate your acceptance of this License to do so, and
209all its terms and conditions for copying, distributing or modifying
210the Program or works based on it.
211
212 6. Each time you redistribute the Program (or any work based on the
213Program), the recipient automatically receives a license from the
214original licensor to copy, distribute or modify the Program subject to
215these terms and conditions. You may not impose any further
216restrictions on the recipients' exercise of the rights granted herein.
217You are not responsible for enforcing compliance by third parties to
218this License.
219
220 7. If, as a consequence of a court judgment or allegation of patent
221infringement or for any other reason (not limited to patent issues),
222conditions are imposed on you (whether by court order, agreement or
223otherwise) that contradict the conditions of this License, they do not
224excuse you from the conditions of this License. If you cannot
225distribute so as to satisfy simultaneously your obligations under this
226License and any other pertinent obligations, then as a consequence you
227may not distribute the Program at all. For example, if a patent
228license would not permit royalty-free redistribution of the Program by
229all those who receive copies directly or indirectly through you, then
230the only way you could satisfy both it and this License would be to
231refrain entirely from distribution of the Program.
232
233If any portion of this section is held invalid or unenforceable under
234any particular circumstance, the balance of the section is intended to
235apply and the section as a whole is intended to apply in other
236circumstances.
237
238It is not the purpose of this section to induce you to infringe any
239patents or other property right claims or to contest validity of any
240such claims; this section has the sole purpose of protecting the
241integrity of the free software distribution system, which is
242implemented by public license practices. Many people have made
243generous contributions to the wide range of software distributed
244through that system in reliance on consistent application of that
245system; it is up to the author/donor to decide if he or she is willing
246to distribute software through any other system and a licensee cannot
247impose that choice.
248
249This section is intended to make thoroughly clear what is believed to
250be a consequence of the rest of this License.
251\f
252 8. If the distribution and/or use of the Program is restricted in
253certain countries either by patents or by copyrighted interfaces, the
254original copyright holder who places the Program under this License
255may add an explicit geographical distribution limitation excluding
256those countries, so that distribution is permitted only in or among
257countries not thus excluded. In such case, this License incorporates
258the limitation as if written in the body of this License.
259
260 9. The Free Software Foundation may publish revised and/or new versions
261of the General Public License from time to time. Such new versions will
262be similar in spirit to the present version, but may differ in detail to
263address new problems or concerns.
264
265Each version is given a distinguishing version number. If the Program
266specifies a version number of this License which applies to it and "any
267later version", you have the option of following the terms and conditions
268either of that version or of any later version published by the Free
269Software Foundation. If the Program does not specify a version number of
270this License, you may choose any version ever published by the Free Software
271Foundation.
272
273 10. If you wish to incorporate parts of the Program into other free
274programs whose distribution conditions are different, write to the author
275to ask for permission. For software which is copyrighted by the Free
276Software Foundation, write to the Free Software Foundation; we sometimes
277make exceptions for this. Our decision will be guided by the two goals
278of preserving the free status of all derivatives of our free software and
279of promoting the sharing and reuse of software generally.
280
281 NO WARRANTY
282
283 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
284FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
285OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
286PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
287OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
288MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
289TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
290PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
291REPAIR OR CORRECTION.
292
293 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
294WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
295REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
296INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
297OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
298TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
299YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
300PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
301POSSIBILITY OF SUCH DAMAGES.
302
303 END OF TERMS AND CONDITIONS
304\f
305 How to Apply These Terms to Your New Programs
306
307 If you develop a new program, and you want it to be of the greatest
308possible use to the public, the best way to achieve this is to make it
309free software which everyone can redistribute and change under these terms.
310
311 To do so, attach the following notices to the program. It is safest
312to attach them to the start of each source file to most effectively
313convey the exclusion of warranty; and each file should have at least
314the "copyright" line and a pointer to where the full notice is found.
315
316 <one line to give the program's name and a brief idea of what it does.>
317 Copyright (C) <year> <name of author>
318
319 This program is free software; you can redistribute it and/or modify
320 it under the terms of the GNU General Public License as published by
321 the Free Software Foundation; either version 2 of the License, or
322 (at your option) any later version.
323
324 This program is distributed in the hope that it will be useful,
325 but WITHOUT ANY WARRANTY; without even the implied warranty of
326 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
327 GNU General Public License for more details.
328
329 You should have received a copy of the GNU General Public License
330 along with this program; if not, write to the Free Software
331 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
332
333
334Also add information on how to contact you by electronic and paper mail.
335
336If the program is interactive, make it output a short notice like this
337when it starts in an interactive mode:
338
339 Gnomovision version 69, Copyright (C) year name of author
340 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
341 This is free software, and you are welcome to redistribute it
342 under certain conditions; type `show c' for details.
343
344The hypothetical commands `show w' and `show c' should show the appropriate
345parts of the General Public License. Of course, the commands you use may
346be called something other than `show w' and `show c'; they could even be
347mouse-clicks or menu items--whatever suits your program.
348
349You should also get your employer (if you work as a programmer) or your
350school, if any, to sign a "copyright disclaimer" for the program, if
351necessary. Here is a sample; alter the names:
352
353 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
354 `Gnomovision' (which makes passes at compilers) written by James Hacker.
355
356 <signature of Ty Coon>, 1 April 1989
357 Ty Coon, President of Vice
358
359This General Public License does not permit incorporating your program into
360proprietary programs. If your program is a subroutine library, you may
361consider it more useful to permit linking proprietary applications with the
362library. If this is what you want to do, use the GNU Library General
363Public License instead of this License.