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1        Copyright (c) 2003 New Zealand Digital Library Project,
2                      University of Waikato
3
4Permission is hereby granted, free of charge, to any person obtaining
5a copy of this software and associated documentation files (the
6"Software"), to deal in the Software without restriction, including
7without limitation the rights to use, copy, modify, merge, publish,
8and distribute copies of the Software, and to permit persons to whom
9the Software is furnished to do so, subject to the GPL and the
10following conditions (where not in conflict with the GPL):
11
12The above copyright notice and this permission notice shall be
13included in all copies or substantial portions of the Software, as
14will all other notices contained in the copyrights directory.
15
16THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
17EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDER (Greenstone
20Digital Libraries, University of Waikato), OR THEIR STAFF BE LIABLE
21FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
22CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24
25Except as contained in this notice, the name of New Zealand Digital
26Library Project, University of Waikato shall not be used in
27advertising or otherwise to promote the sale, use or other dealings in
28this Software without prior written authorization from the New Zealand
29Digital Library Project, University of Waikato. Distributed under GPL,
30as follows:
31
32
33            GNU GENERAL PUBLIC LICENSE
34               Version 2, June 1991
35
36 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
37                          675 Mass Ave, Cambridge, MA 02139, USA
38 Everyone is permitted to copy and distribute verbatim copies
39 of this license document, but changing it is not allowed.
40
41                Preamble
42
43  The licenses for most software are designed to take away your
44freedom to share and change it.  By contrast, the GNU General Public
45License is intended to guarantee your freedom to share and change free
46software--to make sure the software is free for all its users.  This
47General Public License applies to most of the Free Software
48Foundation's software and to any other program whose authors commit to
49using it.  (Some other Free Software Foundation software is covered by
50the GNU Library General Public License instead.)  You can apply it to
51your programs, too.
52
53  When we speak of free software, we are referring to freedom, not
54price.  Our General Public Licenses are designed to make sure that you
55have the freedom to distribute copies of free software (and charge for
56this service if you wish), that you receive source code or can get it
57if you want it, that you can change the software or use pieces of it
58in new free programs; and that you know you can do these things.
59
60  To protect your rights, we need to make restrictions that forbid
61anyone to deny you these rights or to ask you to surrender the rights.
62These restrictions translate to certain responsibilities for you if you
63distribute copies of the software, or if you modify it.
64
65  For example, if you distribute copies of such a program, whether
66gratis or for a fee, you must give the recipients all the rights that
67you have.  You must make sure that they, too, receive or can get the
68source code.  And you must show them these terms so they know their
69rights.
70
71  We protect your rights with two steps: (1) copyright the software, and
72(2) offer you this license which gives you legal permission to copy,
73distribute and/or modify the software.
74
75  Also, for each author's protection and ours, we want to make certain
76that everyone understands that there is no warranty for this free
77software.  If the software is modified by someone else and passed on, we
78want its recipients to know that what they have is not the original, so
79that any problems introduced by others will not reflect on the original
80authors' reputations.
81
82  Finally, any free program is threatened constantly by software
83patents.  We wish to avoid the danger that redistributors of a free
84program will individually obtain patent licenses, in effect making the
85program proprietary.  To prevent this, we have made it clear that any
86patent must be licensed for everyone's free use or not licensed at all.
87
88  The precise terms and conditions for copying, distribution and
89modification follow.
90
91            GNU GENERAL PUBLIC LICENSE
92   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
93
94  0. This License applies to any program or other work which contains
95a notice placed by the copyright holder saying it may be distributed
96under the terms of this General Public License.  The "Program", below,
97refers to any such program or work, and a "work based on the Program"
98means either the Program or any derivative work under copyright law:
99that is to say, a work containing the Program or a portion of it,
100either verbatim or with modifications and/or translated into another
101language.  (Hereinafter, translation is included without limitation in
102the term "modification".)  Each licensee is addressed as "you".
103
104Activities other than copying, distribution and modification are not
105covered by this License; they are outside its scope.  The act of
106running the Program is not restricted, and the output from the Program
107is covered only if its contents constitute a work based on the
108Program (independent of having been made by running the Program).
109Whether that is true depends on what the Program does.
110
111  1. You may copy and distribute verbatim copies of the Program's
112source code as you receive it, in any medium, provided that you
113conspicuously and appropriately publish on each copy an appropriate
114copyright notice and disclaimer of warranty; keep intact all the
115notices that refer to this License and to the absence of any warranty;
116and give any other recipients of the Program a copy of this License
117along with the Program.
118
119You may charge a fee for the physical act of transferring a copy, and
120you may at your option offer warranty protection in exchange for a fee.
121
122  2. You may modify your copy or copies of the Program or any portion
123of it, thus forming a work based on the Program, and copy and
124distribute such modifications or work under the terms of Section 1
125above, provided that you also meet all of these conditions:
126
127    a) You must cause the modified files to carry prominent notices
128    stating that you changed the files and the date of any change.
129
130    b) You must cause any work that you distribute or publish, that in
131    whole or in part contains or is derived from the Program or any
132    part thereof, to be licensed as a whole at no charge to all third
133    parties under the terms of this License.
134
135    c) If the modified program normally reads commands interactively
136    when run, you must cause it, when started running for such
137    interactive use in the most ordinary way, to print or display an
138    announcement including an appropriate copyright notice and a
139    notice that there is no warranty (or else, saying that you provide
140    a warranty) and that users may redistribute the program under
141    these conditions, and telling the user how to view a copy of this
142    License.  (Exception: if the Program itself is interactive but
143    does not normally print such an announcement, your work based on
144    the Program is not required to print an announcement.)
145
146These requirements apply to the modified work as a whole.  If
147identifiable sections of that work are not derived from the Program,
148and can be reasonably considered independent and separate works in
149themselves, then this License, and its terms, do not apply to those
150sections when you distribute them as separate works.  But when you
151distribute the same sections as part of a whole which is a work based
152on the Program, the distribution of the whole must be on the terms of
153this License, whose permissions for other licensees extend to the
154entire whole, and thus to each and every part regardless of who wrote it.
155
156Thus, it is not the intent of this section to claim rights or contest
157your rights to work written entirely by you; rather, the intent is to
158exercise the right to control the distribution of derivative or
159collective works based on the Program.
160
161In addition, mere aggregation of another work not based on the Program
162with the Program (or with a work based on the Program) on a volume of
163a storage or distribution medium does not bring the other work under
164the scope of this License.
165
166  3. You may copy and distribute the Program (or a work based on it,
167under Section 2) in object code or executable form under the terms of
168Sections 1 and 2 above provided that you also do one of the following:
169
170    a) Accompany it with the complete corresponding machine-readable
171    source code, which must be distributed under the terms of Sections
172    1 and 2 above on a medium customarily used for software interchange; or,
173
174    b) Accompany it with a written offer, valid for at least three
175    years, to give any third party, for a charge no more than your
176    cost of physically performing source distribution, a complete
177    machine-readable copy of the corresponding source code, to be
178    distributed under the terms of Sections 1 and 2 above on a medium
179    customarily used for software interchange; or,
180
181    c) Accompany it with the information you received as to the offer
182    to distribute corresponding source code.  (This alternative is
183    allowed only for noncommercial distribution and only if you
184    received the program in object code or executable form with such
185    an offer, in accord with Subsection b above.)
186
187The source code for a work means the preferred form of the work for
188making modifications to it.  For an executable work, complete source
189code means all the source code for all modules it contains, plus any
190associated interface definition files, plus the scripts used to
191control compilation and installation of the executable.  However, as a
192special exception, the source code distributed need not include
193anything that is normally distributed (in either source or binary
194form) with the major components (compiler, kernel, and so on) of the
195operating system on which the executable runs, unless that component
196itself accompanies the executable.
197
198If distribution of executable or object code is made by offering
199access to copy from a designated place, then offering equivalent
200access to copy the source code from the same place counts as
201distribution of the source code, even though third parties are not
202compelled to copy the source along with the object code.
203
204  4. You may not copy, modify, sublicense, or distribute the Program
205except as expressly provided under this License.  Any attempt
206otherwise to copy, modify, sublicense or distribute the Program is
207void, and will automatically terminate your rights under this License.
208However, parties who have received copies, or rights, from you under
209this License will not have their licenses terminated so long as such
210parties remain in full compliance.
211
212  5. You are not required to accept this License, since you have not
213signed it.  However, nothing else grants you permission to modify or
214distribute the Program or its derivative works.  These actions are
215prohibited by law if you do not accept this License.  Therefore, by
216modifying or distributing the Program (or any work based on the
217Program), you indicate your acceptance of this License to do so, and
218all its terms and conditions for copying, distributing or modifying
219the Program or works based on it.
220
221  6. Each time you redistribute the Program (or any work based on the
222Program), the recipient automatically receives a license from the
223original licensor to copy, distribute or modify the Program subject to
224these terms and conditions.  You may not impose any further
225restrictions on the recipients' exercise of the rights granted herein.
226You are not responsible for enforcing compliance by third parties to
227this License.
228
229  7. If, as a consequence of a court judgment or allegation of patent
230infringement or for any other reason (not limited to patent issues),
231conditions are imposed on you (whether by court order, agreement or
232otherwise) that contradict the conditions of this License, they do not
233excuse you from the conditions of this License.  If you cannot
234distribute so as to satisfy simultaneously your obligations under this
235License and any other pertinent obligations, then as a consequence you
236may not distribute the Program at all.  For example, if a patent
237license would not permit royalty-free redistribution of the Program by
238all those who receive copies directly or indirectly through you, then
239the only way you could satisfy both it and this License would be to
240refrain entirely from distribution of the Program.
241
242If any portion of this section is held invalid or unenforceable under
243any particular circumstance, the balance of the section is intended to
244apply and the section as a whole is intended to apply in other
245circumstances.
246
247It is not the purpose of this section to induce you to infringe any
248patents or other property right claims or to contest validity of any
249such claims; this section has the sole purpose of protecting the
250integrity of the free software distribution system, which is
251implemented by public license practices.  Many people have made
252generous contributions to the wide range of software distributed
253through that system in reliance on consistent application of that
254system; it is up to the author/donor to decide if he or she is willing
255to distribute software through any other system and a licensee cannot
256impose that choice.
257
258This section is intended to make thoroughly clear what is believed to
259be a consequence of the rest of this License.
260
261  8. If the distribution and/or use of the Program is restricted in
262certain countries either by patents or by copyrighted interfaces, the
263original copyright holder who places the Program under this License
264may add an explicit geographical distribution limitation excluding
265those countries, so that distribution is permitted only in or among
266countries not thus excluded.  In such case, this License incorporates
267the limitation as if written in the body of this License.
268
269  9. The Free Software Foundation may publish revised and/or new versions
270of the General Public License from time to time.  Such new versions will
271be similar in spirit to the present version, but may differ in detail to
272address new problems or concerns.
273
274Each version is given a distinguishing version number.  If the Program
275specifies a version number of this License which applies to it and "any
276later version", you have the option of following the terms and conditions
277either of that version or of any later version published by the Free
278Software Foundation.  If the Program does not specify a version number of
279this License, you may choose any version ever published by the Free Software
280Foundation.
281
282  10. If you wish to incorporate parts of the Program into other free
283programs whose distribution conditions are different, write to the author
284to ask for permission.  For software which is copyrighted by the Free
285Software Foundation, write to the Free Software Foundation; we sometimes
286make exceptions for this.  Our decision will be guided by the two goals
287of preserving the free status of all derivatives of our free software and
288of promoting the sharing and reuse of software generally.
289
290                NO WARRANTY
291
292  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
293FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
294OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
295PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
296OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
297MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
298TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
299PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
300REPAIR OR CORRECTION.
301
302  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
303WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
304REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
305INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
306OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
307TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
308YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
309PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
310POSSIBILITY OF SUCH DAMAGES.
311
312             END OF TERMS AND CONDITIONS
313
314        How to Apply These Terms to Your New Programs
315
316  If you develop a new program, and you want it to be of the greatest
317possible use to the public, the best way to achieve this is to make it
318free software which everyone can redistribute and change under these terms.
319
320  To do so, attach the following notices to the program.  It is safest
321to attach them to the start of each source file to most effectively
322convey the exclusion of warranty; and each file should have at least
323the "copyright" line and a pointer to where the full notice is found.
324
325    <one line to give the program's name and a brief idea of what it does.>
326    Copyright (C) 19yy  <name of author>
327
328    This program is free software; you can redistribute it and/or modify
329    it under the terms of the GNU General Public License as published by
330    the Free Software Foundation; either version 2 of the License, or
331    (at your option) any later version.
332
333    This program is distributed in the hope that it will be useful,
334    but WITHOUT ANY WARRANTY; without even the implied warranty of
335    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
336    GNU General Public License for more details.
337
338    You should have received a copy of the GNU General Public License
339    along with this program; if not, write to the Free Software
340    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
341
342Also add information on how to contact you by electronic and paper mail.
343
344If the program is interactive, make it output a short notice like this
345when it starts in an interactive mode:
346
347    Gnomovision version 69, Copyright (C) 19yy name of author
348    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
349    This is free software, and you are welcome to redistribute it
350    under certain conditions; type `show c' for details.
351
352The hypothetical commands `show w' and `show c' should show the appropriate
353parts of the General Public License.  Of course, the commands you use may
354be called something other than `show w' and `show c'; they could even be
355mouse-clicks or menu items--whatever suits your program.
356
357You should also get your employer (if you work as a programmer) or your
358school, if any, to sign a "copyright disclaimer" for the program, if
359necessary.  Here is a sample; alter the names:
360
361  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
362  `Gnomovision' (which makes passes at compilers) written by James Hacker.
363
364  <signature of Ty Coon>, 1 April 1989
365  Ty Coon, President of Vice
366
367This General Public License does not permit incorporating your program into
368proprietary programs.  If your program is a subroutine library, you may
369consider it more useful to permit linking proprietary applications with the
370library.  If this is what you want to do, use the GNU Library General
371Public License instead of this License.
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