1 This module is licensed under the same terms as perl itself.
3 ===========================================================================
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of either:
8 a. the GNU General Public License as published by the Free
9 Software Foundation; either version 1, or (at your option) any
12 b. the "Artistic License" which comes with this Kit.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either
17 the GNU General Public License or the Artistic License for more details.
19 You should have received a copy of the Artistic License with this
20 Kit, in the file named "Artistic". If not, I'll be glad to provide one.
22 You should also have received a copy of the GNU General Public License
23 along with this program in the file named "Copying". If not, write to the
24 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 Boston, MA 02110-1301, USA or visit their web page on the internet at
26 https://www.gnu.org/copyleft/gpl.html.
28 For those of you that choose to use the GNU General Public License,
29 my interpretation of the GNU General Public License is that no Perl
30 script falls under the terms of the GPL unless you explicitly put
31 said script under the terms of the GPL yourself. Furthermore, any
32 object code linked with perl does not automatically fall under the
33 terms of the GPL, provided such object code only adds definitions
34 of subroutines and variables, and does not otherwise impair the
35 resulting interpreter from executing any standard Perl script. I
36 consider linking in C subroutines in this manner to be the moral
37 equivalent of defining subroutines in the Perl language itself. You
38 may sell such an object file as proprietary provided that you provide
39 or offer to provide the Perl source, as specified by the GNU General
40 Public License. (This is merely an alternate way of specifying input
41 to the program.) You may also sell a binary produced by the dumping of
42 a running Perl script that belongs to you, provided that you provide or
43 offer to provide the Perl source as specified by the GPL. (The
44 fact that a Perl interpreter and your code are in the same binary file
45 is, in this case, a form of mere aggregation.) This is my interpretation
46 of the GPL. If you still have concerns or difficulties understanding
47 my intent, feel free to contact me. Of course, the Artistic License
48 spells all this out for your protection, so you may prefer to use that.
51 --- Copying ---------------------------------------------------------------
53 GNU GENERAL PUBLIC LICENSE
54 Version 1, February 1989
56 Copyright (C) 1989 Free Software Foundation, Inc.
57 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
59 Everyone is permitted to copy and distribute verbatim copies
60 of this license document, but changing it is not allowed.
64 The license agreements of most software companies try to keep users
65 at the mercy of those companies. By contrast, our General Public
66 License is intended to guarantee your freedom to share and change free
67 software--to make sure the software is free for all its users. The
68 General Public License applies to the Free Software Foundation's
69 software and to any other program whose authors commit to using it.
70 You can use it for your programs, too.
72 When we speak of free software, we are referring to freedom, not
73 price. Specifically, the General Public License is designed to make
74 sure that you have the freedom to give away or sell copies of free
75 software, that you receive source code or can get it if you want it,
76 that you can change the software or use pieces of it in new free
77 programs; and that you know you can do these things.
79 To protect your rights, we need to make restrictions that forbid
80 anyone to deny you these rights or to ask you to surrender the rights.
81 These restrictions translate to certain responsibilities for you if you
82 distribute copies of the software, or if you modify it.
84 For example, if you distribute copies of a such a program, whether
85 gratis or for a fee, you must give the recipients all the rights that
86 you have. You must make sure that they, too, receive or can get the
87 source code. And you must tell them their rights.
89 We protect your rights with two steps: (1) copyright the software, and
90 (2) offer you this license which gives you legal permission to copy,
91 distribute and/or modify the software.
93 Also, for each author's protection and ours, we want to make certain
94 that everyone understands that there is no warranty for this free
95 software. If the software is modified by someone else and passed on, we
96 want its recipients to know that what they have is not the original, so
97 that any problems introduced by others will not reflect on the original
100 The precise terms and conditions for copying, distribution and
103 GNU GENERAL PUBLIC LICENSE
104 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
106 0. This License Agreement applies to any program or other work which
107 contains a notice placed by the copyright holder saying it may be
108 distributed under the terms of this General Public License. The
109 "Program", below, refers to any such program or work, and a "work based
110 on the Program" means either the Program or any work containing the
111 Program or a portion of it, either verbatim or with modifications. Each
112 licensee is addressed as "you".
114 1. You may copy and distribute verbatim copies of the Program's source
115 code as you receive it, in any medium, provided that you conspicuously and
116 appropriately publish on each copy an appropriate copyright notice and
117 disclaimer of warranty; keep intact all the notices that refer to this
118 General Public License and to the absence of any warranty; and give any
119 other recipients of the Program a copy of this General Public License
120 along with the Program. You may charge a fee for the physical act of
123 2. You may modify your copy or copies of the Program or any portion of
124 it, and copy and distribute such modifications under the terms of Paragraph
125 1 above, provided that you also do the following:
127 a) cause the modified files to carry prominent notices stating that
128 you changed the files and the date of any change; and
130 b) cause the whole of any work that you distribute or publish, that
131 in whole or in part contains the Program or any part thereof, either
132 with or without modifications, to be licensed at no charge to all
133 third parties under the terms of this General Public License (except
134 that you may choose to grant warranty protection to some or all
135 third parties, at your option).
137 c) If the modified program normally reads commands interactively when
138 run, you must cause it, when started running for such interactive use
139 in the simplest and most usual way, to print or display an
140 announcement including an appropriate copyright notice and a notice
141 that there is no warranty (or else, saying that you provide a
142 warranty) and that users may redistribute the program under these
143 conditions, and telling the user how to view a copy of this General
146 d) You may charge a fee for the physical act of transferring a
147 copy, and you may at your option offer warranty protection in
150 Mere aggregation of another independent work with the Program (or its
151 derivative) on a volume of a storage or distribution medium does not bring
152 the other work under the scope of these terms.
154 3. You may copy and distribute the Program (or a portion or derivative of
155 it, under Paragraph 2) in object code or executable form under the terms of
156 Paragraphs 1 and 2 above provided that you also do one of the following:
158 a) accompany it with the complete corresponding machine-readable
159 source code, which must be distributed under the terms of
160 Paragraphs 1 and 2 above; or,
162 b) accompany it with a written offer, valid for at least three
163 years, to give any third party free (except for a nominal charge
164 for the cost of distribution) a complete machine-readable copy of the
165 corresponding source code, to be distributed under the terms of
166 Paragraphs 1 and 2 above; or,
168 c) accompany it with the information you received as to where the
169 corresponding source code may be obtained. (This alternative is
170 allowed only for noncommercial distribution and only if you
171 received the program in object code or executable form alone.)
173 Source code for a work means the preferred form of the work for making
174 modifications to it. For an executable file, complete source code means
175 all the source code for all modules it contains; but, as a special
176 exception, it need not include source code for modules which are standard
177 libraries that accompany the operating system on which the executable
178 file runs, or for standard header files or definitions files that
179 accompany that operating system.
181 4. You may not copy, modify, sublicense, distribute or transfer the
182 Program except as expressly provided under this General Public License.
183 Any attempt otherwise to copy, modify, sublicense, distribute or transfer
184 the Program is void, and will automatically terminate your rights to use
185 the Program under this License. However, parties who have received
186 copies, or rights to use copies, from you under this General Public
187 License will not have their licenses terminated so long as such parties
188 remain in full compliance.
190 5. By copying, distributing or modifying the Program (or any work based
191 on the Program) you indicate your acceptance of this license to do so,
192 and all its terms and conditions.
194 6. Each time you redistribute the Program (or any work based on the
195 Program), the recipient automatically receives a license from the original
196 licensor to copy, distribute or modify the Program subject to these
197 terms and conditions. You may not impose any further restrictions on the
198 recipients' exercise of the rights granted herein.
200 7. The Free Software Foundation may publish revised and/or new versions
201 of the General Public License from time to time. Such new versions will
202 be similar in spirit to the present version, but may differ in detail to
203 address new problems or concerns.
205 Each version is given a distinguishing version number. If the Program
206 specifies a version number of the license which applies to it and "any
207 later version", you have the option of following the terms and conditions
208 either of that version or of any later version published by the Free
209 Software Foundation. If the Program does not specify a version number of
210 the license, you may choose any version ever published by the Free Software
213 8. If you wish to incorporate parts of the Program into other free
214 programs whose distribution conditions are different, write to the author
215 to ask for permission. For software which is copyrighted by the Free
216 Software Foundation, write to the Free Software Foundation; we sometimes
217 make exceptions for this. Our decision will be guided by the two goals
218 of preserving the free status of all derivatives of our free software and
219 of promoting the sharing and reuse of software generally.
223 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
224 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
225 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
226 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
227 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
228 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
229 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
230 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
231 REPAIR OR CORRECTION.
233 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
234 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
235 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
236 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
237 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
238 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
239 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
240 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
241 POSSIBILITY OF SUCH DAMAGES.
243 END OF TERMS AND CONDITIONS
245 Appendix: How to Apply These Terms to Your New Programs
247 If you develop a new program, and you want it to be of the greatest
248 possible use to humanity, the best way to achieve this is to make it
249 free software which everyone can redistribute and change under these
252 To do so, attach the following notices to the program. It is safest to
253 attach them to the start of each source file to most effectively convey
254 the exclusion of warranty; and each file should have at least the
255 "copyright" line and a pointer to where the full notice is found.
257 <one line to give the program's name and a brief idea of what it does.>
258 Copyright (C) 19yy <name of author>
260 This program is free software; you can redistribute it and/or modify
261 it under the terms of the GNU General Public License as published by
262 the Free Software Foundation; either version 1, or (at your option)
265 This program is distributed in the hope that it will be useful,
266 but WITHOUT ANY WARRANTY; without even the implied warranty of
267 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
268 GNU General Public License for more details.
270 You should have received a copy of the GNU General Public License
271 along with this program; if not, write to the Free Software
272 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
275 Also add information on how to contact you by electronic and paper mail.
277 If the program is interactive, make it output a short notice like this
278 when it starts in an interactive mode:
280 Gnomovision version 69, Copyright (C) 19xx name of author
281 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
282 This is free software, and you are welcome to redistribute it
283 under certain conditions; type `show c' for details.
285 The hypothetical commands `show w' and `show c' should show the
286 appropriate parts of the General Public License. Of course, the
287 commands you use may be called something other than `show w' and `show
288 c'; they could even be mouse-clicks or menu items--whatever suits your
291 You should also get your employer (if you work as a programmer) or your
292 school, if any, to sign a "copyright disclaimer" for the program, if
293 necessary. Here a sample; alter the names:
295 Yoyodyne, Inc., hereby disclaims all copyright interest in the
296 program `Gnomovision' (a program to direct compilers to make passes
297 at assemblers) written by James Hacker.
299 <signature of Ty Coon>, 1 April 1989
300 Ty Coon, President of Vice
302 That's all there is to it!
305 --- Artistic --------------------------------------------------------------
307 The "Artistic License"
311 The intent of this document is to state the conditions under which a
312 Package may be copied, such that the Copyright Holder maintains some
313 semblance of artistic control over the development of the package,
314 while giving the users of the package the right to use and distribute
315 the Package in a more-or-less customary fashion, plus the right to make
316 reasonable modifications.
320 "Package" refers to the collection of files distributed by the
321 Copyright Holder, and derivatives of that collection of files
322 created through textual modification.
324 "Standard Version" refers to such a Package if it has not been
325 modified, or has been modified in accordance with the wishes
326 of the Copyright Holder as specified below.
328 "Copyright Holder" is whoever is named in the copyright or
329 copyrights for the package.
331 "You" is you, if you're thinking about copying or distributing
334 "Reasonable copying fee" is whatever you can justify on the
335 basis of media cost, duplication charges, time of people involved,
336 and so on. (You will not be required to justify it to the
337 Copyright Holder, but only to the computing community at large
338 as a market that must bear the fee.)
340 "Freely Available" means that no fee is charged for the item
341 itself, though there may be fees involved in handling the item.
342 It also means that recipients of the item may redistribute it
343 under the same conditions they received it.
345 1. You may make and give away verbatim copies of the source form of the
346 Standard Version of this Package without restriction, provided that you
347 duplicate all of the original copyright notices and associated disclaimers.
349 2. You may apply bug fixes, portability fixes and other modifications
350 derived from the Public Domain or from the Copyright Holder. A Package
351 modified in such a way shall still be considered the Standard Version.
353 3. You may otherwise modify your copy of this Package in any way, provided
354 that you insert a prominent notice in each changed file stating how and
355 when you changed that file, and provided that you do at least ONE of the
358 a) place your modifications in the Public Domain or otherwise make them
359 Freely Available, such as by posting said modifications to Usenet or
360 an equivalent medium, or placing the modifications on a major archive
361 site such as uunet.uu.net, or by allowing the Copyright Holder to include
362 your modifications in the Standard Version of the Package.
364 b) use the modified Package only within your corporation or organization.
366 c) rename any non-standard executables so the names do not conflict
367 with standard executables, which must also be provided, and provide
368 a separate manual page for each non-standard executable that clearly
369 documents how it differs from the Standard Version.
371 d) make other distribution arrangements with the Copyright Holder.
373 4. You may distribute the programs of this Package in object code or
374 executable form, provided that you do at least ONE of the following:
376 a) distribute a Standard Version of the executables and library files,
377 together with instructions (in the manual page or equivalent) on where
378 to get the Standard Version.
380 b) accompany the distribution with the machine-readable source of
381 the Package with your modifications.
383 c) give non-standard executables non-standard names, and clearly
384 document the differences in manual pages (or equivalent), together
385 with instructions on where to get the Standard Version.
387 d) make other distribution arrangements with the Copyright Holder.
389 5. You may charge a reasonable copying fee for any distribution of this
390 Package. You may charge any fee you choose for support of this
391 Package. You may not charge a fee for this Package itself. However,
392 you may distribute this Package in aggregate with other (possibly
393 commercial) programs as part of a larger (possibly commercial) software
394 distribution provided that you do not advertise this Package as a
395 product of your own. You may embed this Package's interpreter within
396 an executable of yours (by linking); this shall be construed as a mere
397 form of aggregation, provided that the complete Standard Version of the
398 interpreter is so embedded.
400 6. The scripts and library files supplied as input to or produced as
401 output from the programs of this Package do not automatically fall
402 under the copyright of this Package, but belong to whoever generated
403 them, and may be sold commercially, and may be aggregated with this
404 Package. If such scripts or library files are aggregated with this
405 Package via the so-called "undump" or "unexec" methods of producing a
406 binary executable image, then distribution of such an image shall
407 neither be construed as a distribution of this Package nor shall it
408 fall under the restrictions of Paragraphs 3 and 4, provided that you do
409 not represent such an executable image as a Standard Version of this
412 7. C subroutines (or comparably compiled subroutines in other
413 languages) supplied by you and linked into this Package in order to
414 emulate subroutines and variables of the language defined by this
415 Package shall not be considered part of this Package, but are the
416 equivalent of input as in Paragraph 6, provided these subroutines do
417 not change the language in any way that would cause it to fail the
418 regression tests for the language.
420 8. Aggregation of this Package with a commercial distribution is always
421 permitted provided that the use of this Package is embedded; that is,
422 when no overt attempt is made to make this Package's interfaces visible
423 to the end user of the commercial distribution. Such use shall not be
424 construed as a distribution of this Package.
426 9. The name of the Copyright Holder may not be used to endorse or promote
427 products derived from this software without specific prior written permission.
429 10. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
430 IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
431 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.