source: gs3-extensions/gsdl-as/trunk/COPYING@ 21052

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license for gsdl-as

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1The files in this directory and all its subdirectories belong to the
2Greenstone Alerting Service. These files, with the exemption of the JAR files
3in the lib subdirectory, are Copyright (C) 2004, 2005 by Andrea Schweer
4(schweer@cs.waikato.ac.nz) and are licensed under the GNU General Public
5License Version 2 (see below). For the JAR files in the lib subdirectory, see
6the license information inside each JAR file or in the lib subdirectory.
7
8===============================================================================
9 GNU GENERAL PUBLIC LICENSE
10 Version 2, June 1991
11
12 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
13 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
14 Everyone is permitted to copy and distribute verbatim copies
15 of this license document, but changing it is not allowed.
16
17 Preamble
18
19 The licenses for most software are designed to take away your
20freedom to share and change it. By contrast, the GNU General Public
21License is intended to guarantee your freedom to share and change free
22software--to make sure the software is free for all its users. This
23General Public License applies to most of the Free Software
24Foundation's software and to any other program whose authors commit to
25using it. (Some other Free Software Foundation software is covered by
26the GNU Library General Public License instead.) You can apply it to
27your programs, too.
28
29 When we speak of free software, we are referring to freedom, not
30price. Our General Public Licenses are designed to make sure that you
31have the freedom to distribute copies of free software (and charge for
32this service if you wish), that you receive source code or can get it
33if you want it, that you can change the software or use pieces of it
34in new free programs; and that you know you can do these things.
35
36 To protect your rights, we need to make restrictions that forbid
37anyone to deny you these rights or to ask you to surrender the rights.
38These restrictions translate to certain responsibilities for you if you
39distribute copies of the software, or if you modify it.
40
41 For example, if you distribute copies of such a program, whether
42gratis or for a fee, you must give the recipients all the rights that
43you have. You must make sure that they, too, receive or can get the
44source code. And you must show them these terms so they know their
45rights.
46
47 We protect your rights with two steps: (1) copyright the software, and
48(2) offer you this license which gives you legal permission to copy,
49distribute and/or modify the software.
50
51 Also, for each author's protection and ours, we want to make certain
52that everyone understands that there is no warranty for this free
53software. If the software is modified by someone else and passed on, we
54want its recipients to know that what they have is not the original, so
55that any problems introduced by others will not reflect on the original
56authors' reputations.
57
58 Finally, any free program is threatened constantly by software
59patents. We wish to avoid the danger that redistributors of a free
60program will individually obtain patent licenses, in effect making the
61program proprietary. To prevent this, we have made it clear that any
62patent must be licensed for everyone's free use or not licensed at all.
63
64 The precise terms and conditions for copying, distribution and
65modification follow.
66
67
68 GNU GENERAL PUBLIC LICENSE
69 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
70
71 0. This License applies to any program or other work which contains
72a notice placed by the copyright holder saying it may be distributed
73under the terms of this General Public License. The "Program", below,
74refers to any such program or work, and a "work based on the Program"
75means either the Program or any derivative work under copyright law:
76that is to say, a work containing the Program or a portion of it,
77either verbatim or with modifications and/or translated into another
78language. (Hereinafter, translation is included without limitation in
79the term "modification".) Each licensee is addressed as "you".
80
81Activities other than copying, distribution and modification are not
82covered by this License; they are outside its scope. The act of
83running the Program is not restricted, and the output from the Program
84is covered only if its contents constitute a work based on the
85Program (independent of having been made by running the Program).
86Whether that is true depends on what the Program does.
87
88 1. You may copy and distribute verbatim copies of the Program's
89source code as you receive it, in any medium, provided that you
90conspicuously and appropriately publish on each copy an appropriate
91copyright notice and disclaimer of warranty; keep intact all the
92notices that refer to this License and to the absence of any warranty;
93and give any other recipients of the Program a copy of this License
94along with the Program.
95
96You may charge a fee for the physical act of transferring a copy, and
97you may at your option offer warranty protection in exchange for a fee.
98
99 2. You may modify your copy or copies of the Program or any portion
100of it, thus forming a work based on the Program, and copy and
101distribute such modifications or work under the terms of Section 1
102above, provided that you also meet all of these conditions:
103
104 a) You must cause the modified files to carry prominent notices
105 stating that you changed the files and the date of any change.
106
107 b) You must cause any work that you distribute or publish, that in
108 whole or in part contains or is derived from the Program or any
109 part thereof, to be licensed as a whole at no charge to all third
110 parties under the terms of this License.
111
112 c) If the modified program normally reads commands interactively
113 when run, you must cause it, when started running for such
114 interactive use in the most ordinary way, to print or display an
115 announcement including an appropriate copyright notice and a
116 notice that there is no warranty (or else, saying that you provide
117 a warranty) and that users may redistribute the program under
118 these conditions, and telling the user how to view a copy of this
119 License. (Exception: if the Program itself is interactive but
120 does not normally print such an announcement, your work based on
121 the Program is not required to print an announcement.)
122
123
124These requirements apply to the modified work as a whole. If
125identifiable sections of that work are not derived from the Program,
126and can be reasonably considered independent and separate works in
127themselves, then this License, and its terms, do not apply to those
128sections when you distribute them as separate works. But when you
129distribute the same sections as part of a whole which is a work based
130on the Program, the distribution of the whole must be on the terms of
131this License, whose permissions for other licensees extend to the
132entire whole, and thus to each and every part regardless of who wrote it.
133
134Thus, it is not the intent of this section to claim rights or contest
135your rights to work written entirely by you; rather, the intent is to
136exercise the right to control the distribution of derivative or
137collective works based on the Program.
138
139In addition, mere aggregation of another work not based on the Program
140with the Program (or with a work based on the Program) on a volume of
141a storage or distribution medium does not bring the other work under
142the scope of this License.
143
144 3. You may copy and distribute the Program (or a work based on it,
145under Section 2) in object code or executable form under the terms of
146Sections 1 and 2 above provided that you also do one of the following:
147
148 a) Accompany it with the complete corresponding machine-readable
149 source code, which must be distributed under the terms of Sections
150 1 and 2 above on a medium customarily used for software interchange; or,
151
152 b) Accompany it with a written offer, valid for at least three
153 years, to give any third party, for a charge no more than your
154 cost of physically performing source distribution, a complete
155 machine-readable copy of the corresponding source code, to be
156 distributed under the terms of Sections 1 and 2 above on a medium
157 customarily used for software interchange; or,
158
159 c) Accompany it with the information you received as to the offer
160 to distribute corresponding source code. (This alternative is
161 allowed only for noncommercial distribution and only if you
162 received the program in object code or executable form with such
163 an offer, in accord with Subsection b above.)
164
165The source code for a work means the preferred form of the work for
166making modifications to it. For an executable work, complete source
167code means all the source code for all modules it contains, plus any
168associated interface definition files, plus the scripts used to
169control compilation and installation of the executable. However, as a
170special exception, the source code distributed need not include
171anything that is normally distributed (in either source or binary
172form) with the major components (compiler, kernel, and so on) of the
173operating system on which the executable runs, unless that component
174itself accompanies the executable.
175
176If distribution of executable or object code is made by offering
177access to copy from a designated place, then offering equivalent
178access to copy the source code from the same place counts as
179distribution of the source code, even though third parties are not
180compelled to copy the source along with the object code.
181
182
183 4. You may not copy, modify, sublicense, or distribute the Program
184except as expressly provided under this License. Any attempt
185otherwise to copy, modify, sublicense or distribute the Program is
186void, and will automatically terminate your rights under this License.
187However, parties who have received copies, or rights, from you under
188this License will not have their licenses terminated so long as such
189parties remain in full compliance.
190
191 5. You are not required to accept this License, since you have not
192signed it. However, nothing else grants you permission to modify or
193distribute the Program or its derivative works. These actions are
194prohibited by law if you do not accept this License. Therefore, by
195modifying or distributing the Program (or any work based on the
196Program), you indicate your acceptance of this License to do so, and
197all its terms and conditions for copying, distributing or modifying
198the Program or works based on it.
199
200 6. Each time you redistribute the Program (or any work based on the
201Program), the recipient automatically receives a license from the
202original licensor to copy, distribute or modify the Program subject to
203these terms and conditions. You may not impose any further
204restrictions on the recipients' exercise of the rights granted herein.
205You are not responsible for enforcing compliance by third parties to
206this License.
207
208 7. If, as a consequence of a court judgment or allegation of patent
209infringement or for any other reason (not limited to patent issues),
210conditions are imposed on you (whether by court order, agreement or
211otherwise) that contradict the conditions of this License, they do not
212excuse you from the conditions of this License. If you cannot
213distribute so as to satisfy simultaneously your obligations under this
214License and any other pertinent obligations, then as a consequence you
215may not distribute the Program at all. For example, if a patent
216license would not permit royalty-free redistribution of the Program by
217all those who receive copies directly or indirectly through you, then
218the only way you could satisfy both it and this License would be to
219refrain entirely from distribution of the Program.
220
221If any portion of this section is held invalid or unenforceable under
222any particular circumstance, the balance of the section is intended to
223apply and the section as a whole is intended to apply in other
224circumstances.
225
226It is not the purpose of this section to induce you to infringe any
227patents or other property right claims or to contest validity of any
228such claims; this section has the sole purpose of protecting the
229integrity of the free software distribution system, which is
230implemented by public license practices. Many people have made
231generous contributions to the wide range of software distributed
232through that system in reliance on consistent application of that
233system; it is up to the author/donor to decide if he or she is willing
234to distribute software through any other system and a licensee cannot
235impose that choice.
236
237This section is intended to make thoroughly clear what is believed to
238be a consequence of the rest of this License.
239
240
241 8. If the distribution and/or use of the Program is restricted in
242certain countries either by patents or by copyrighted interfaces, the
243original copyright holder who places the Program under this License
244may add an explicit geographical distribution limitation excluding
245those countries, so that distribution is permitted only in or among
246countries not thus excluded. In such case, this License incorporates
247the limitation as if written in the body of this License.
248
249 9. The Free Software Foundation may publish revised and/or new versions
250of the General Public License from time to time. Such new versions will
251be similar in spirit to the present version, but may differ in detail to
252address new problems or concerns.
253
254Each version is given a distinguishing version number. If the Program
255specifies a version number of this License which applies to it and "any
256later version", you have the option of following the terms and conditions
257either of that version or of any later version published by the Free
258Software Foundation. If the Program does not specify a version number of
259this License, you may choose any version ever published by the Free Software
260Foundation.
261
262 10. If you wish to incorporate parts of the Program into other free
263programs whose distribution conditions are different, write to the author
264to ask for permission. For software which is copyrighted by the Free
265Software Foundation, write to the Free Software Foundation; we sometimes
266make exceptions for this. Our decision will be guided by the two goals
267of preserving the free status of all derivatives of our free software and
268of promoting the sharing and reuse of software generally.
269
270 NO WARRANTY
271
272 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
273FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
274OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
275PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
276OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
277MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
278TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
279PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
280REPAIR OR CORRECTION.
281
282 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
283WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
284REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
285INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
286OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
287TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
288YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
289PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
290POSSIBILITY OF SUCH DAMAGES.
291
292 END OF TERMS AND CONDITIONS
293
294
295 How to Apply These Terms to Your New Programs
296
297 If you develop a new program, and you want it to be of the greatest
298possible use to the public, the best way to achieve this is to make it
299free software which everyone can redistribute and change under these terms.
300
301 To do so, attach the following notices to the program. It is safest
302to attach them to the start of each source file to most effectively
303convey the exclusion of warranty; and each file should have at least
304the "copyright" line and a pointer to where the full notice is found.
305
306 <one line to give the program's name and a brief idea of what it does.>
307 Copyright (C) <year> <name of author>
308
309 This program is free software; you can redistribute it and/or modify
310 it under the terms of the GNU General Public License as published by
311 the Free Software Foundation; either version 2 of the License, or
312 (at your option) any later version.
313
314 This program is distributed in the hope that it will be useful,
315 but WITHOUT ANY WARRANTY; without even the implied warranty of
316 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
317 GNU General Public License for more details.
318
319 You should have received a copy of the GNU General Public License
320 along with this program; if not, write to the Free Software
321 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
322
323
324Also add information on how to contact you by electronic and paper mail.
325
326If the program is interactive, make it output a short notice like this
327when it starts in an interactive mode:
328
329 Gnomovision version 69, Copyright (C) year name of author
330 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
331 This is free software, and you are welcome to redistribute it
332 under certain conditions; type `show c' for details.
333
334The hypothetical commands `show w' and `show c' should show the appropriate
335parts of the General Public License. Of course, the commands you use may
336be called something other than `show w' and `show c'; they could even be
337mouse-clicks or menu items--whatever suits your program.
338
339You should also get your employer (if you work as a programmer) or your
340school, if any, to sign a "copyright disclaimer" for the program, if
341necessary. Here is a sample; alter the names:
342
343 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
344 `Gnomovision' (which makes passes at compilers) written by James Hacker.
345
346 <signature of Ty Coon>, 1 April 1989
347 Ty Coon, President of Vice
348
349This General Public License does not permit incorporating your program into
350proprietary programs. If your program is a subroutine library, you may
351consider it more useful to permit linking proprietary applications with the
352library. If this is what you want to do, use the GNU Library General
353Public License instead of this License.
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