1 This software is licensed under the same terms as Perl5 itself.
2 At the time of writing this means, you can redistribute it and/or
3 modify it under the terms of either:
5 a) the GNU General Public License as published by the Free
6 Software Foundation; either version 1, or (at your option) any
9 b) the "Artistic License"
11 which both comes with this Kit.
13 This software is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either
16 the GNU General Public License or the Artistic License for more details.
18 ===========================================================================
20 This program is free software; you can redistribute it and/or modify
21 it under the terms of either:
23 a. the GNU General Public License as published by the Free
24 Software Foundation; either version 1, or (at your option) any
27 b. the "Artistic License" which comes with this Kit.
29 This program is distributed in the hope that it will be useful,
30 but WITHOUT ANY WARRANTY; without even the implied warranty of
31 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either
32 the GNU General Public License or the Artistic License for more details.
34 You should have received a copy of the Artistic License with this
35 Kit, in the file named "Artistic". If not, I'll be glad to provide one.
37 You should also have received a copy of the GNU General Public License
38 along with this program in the file named "Copying". If not, write to the
39 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
40 Boston, MA 02110-1301, USA or visit their web page on the internet at
41 https://www.gnu.org/copyleft/gpl.html.
43 For those of you that choose to use the GNU General Public License,
44 my interpretation of the GNU General Public License is that no Perl
45 script falls under the terms of the GPL unless you explicitly put
46 said script under the terms of the GPL yourself. Furthermore, any
47 object code linked with perl does not automatically fall under the
48 terms of the GPL, provided such object code only adds definitions
49 of subroutines and variables, and does not otherwise impair the
50 resulting interpreter from executing any standard Perl script. I
51 consider linking in C subroutines in this manner to be the moral
52 equivalent of defining subroutines in the Perl language itself. You
53 may sell such an object file as proprietary provided that you provide
54 or offer to provide the Perl source, as specified by the GNU General
55 Public License. (This is merely an alternate way of specifying input
56 to the program.) You may also sell a binary produced by the dumping of
57 a running Perl script that belongs to you, provided that you provide or
58 offer to provide the Perl source as specified by the GPL. (The
59 fact that a Perl interpreter and your code are in the same binary file
60 is, in this case, a form of mere aggregation.) This is my interpretation
61 of the GPL. If you still have concerns or difficulties understanding
62 my intent, feel free to contact me. Of course, the Artistic License
63 spells all this out for your protection, so you may prefer to use that.
66 --- Copying ---------------------------------------------------------------
68 GNU GENERAL PUBLIC LICENSE
69 Version 1, February 1989
71 Copyright (C) 1989 Free Software Foundation, Inc.
72 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
74 Everyone is permitted to copy and distribute verbatim copies
75 of this license document, but changing it is not allowed.
79 The license agreements of most software companies try to keep users
80 at the mercy of those companies. By contrast, our General Public
81 License is intended to guarantee your freedom to share and change free
82 software--to make sure the software is free for all its users. The
83 General Public License applies to the Free Software Foundation's
84 software and to any other program whose authors commit to using it.
85 You can use it for your programs, too.
87 When we speak of free software, we are referring to freedom, not
88 price. Specifically, the General Public License is designed to make
89 sure that you have the freedom to give away or sell copies of free
90 software, that you receive source code or can get it if you want it,
91 that you can change the software or use pieces of it in new free
92 programs; and that you know you can do these things.
94 To protect your rights, we need to make restrictions that forbid
95 anyone to deny you these rights or to ask you to surrender the rights.
96 These restrictions translate to certain responsibilities for you if you
97 distribute copies of the software, or if you modify it.
99 For example, if you distribute copies of a such a program, whether
100 gratis or for a fee, you must give the recipients all the rights that
101 you have. You must make sure that they, too, receive or can get the
102 source code. And you must tell them their rights.
104 We protect your rights with two steps: (1) copyright the software, and
105 (2) offer you this license which gives you legal permission to copy,
106 distribute and/or modify the software.
108 Also, for each author's protection and ours, we want to make certain
109 that everyone understands that there is no warranty for this free
110 software. If the software is modified by someone else and passed on, we
111 want its recipients to know that what they have is not the original, so
112 that any problems introduced by others will not reflect on the original
113 authors' reputations.
115 The precise terms and conditions for copying, distribution and
118 GNU GENERAL PUBLIC LICENSE
119 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
121 0. This License Agreement applies to any program or other work which
122 contains a notice placed by the copyright holder saying it may be
123 distributed under the terms of this General Public License. The
124 "Program", below, refers to any such program or work, and a "work based
125 on the Program" means either the Program or any work containing the
126 Program or a portion of it, either verbatim or with modifications. Each
127 licensee is addressed as "you".
129 1. You may copy and distribute verbatim copies of the Program's source
130 code as you receive it, in any medium, provided that you conspicuously and
131 appropriately publish on each copy an appropriate copyright notice and
132 disclaimer of warranty; keep intact all the notices that refer to this
133 General Public License and to the absence of any warranty; and give any
134 other recipients of the Program a copy of this General Public License
135 along with the Program. You may charge a fee for the physical act of
138 2. You may modify your copy or copies of the Program or any portion of
139 it, and copy and distribute such modifications under the terms of Paragraph
140 1 above, provided that you also do the following:
142 a) cause the modified files to carry prominent notices stating that
143 you changed the files and the date of any change; and
145 b) cause the whole of any work that you distribute or publish, that
146 in whole or in part contains the Program or any part thereof, either
147 with or without modifications, to be licensed at no charge to all
148 third parties under the terms of this General Public License (except
149 that you may choose to grant warranty protection to some or all
150 third parties, at your option).
152 c) If the modified program normally reads commands interactively when
153 run, you must cause it, when started running for such interactive use
154 in the simplest and most usual way, to print or display an
155 announcement including an appropriate copyright notice and a notice
156 that there is no warranty (or else, saying that you provide a
157 warranty) and that users may redistribute the program under these
158 conditions, and telling the user how to view a copy of this General
161 d) You may charge a fee for the physical act of transferring a
162 copy, and you may at your option offer warranty protection in
165 Mere aggregation of another independent work with the Program (or its
166 derivative) on a volume of a storage or distribution medium does not bring
167 the other work under the scope of these terms.
169 3. You may copy and distribute the Program (or a portion or derivative of
170 it, under Paragraph 2) in object code or executable form under the terms of
171 Paragraphs 1 and 2 above provided that you also do one of the following:
173 a) accompany it with the complete corresponding machine-readable
174 source code, which must be distributed under the terms of
175 Paragraphs 1 and 2 above; or,
177 b) accompany it with a written offer, valid for at least three
178 years, to give any third party free (except for a nominal charge
179 for the cost of distribution) a complete machine-readable copy of the
180 corresponding source code, to be distributed under the terms of
181 Paragraphs 1 and 2 above; or,
183 c) accompany it with the information you received as to where the
184 corresponding source code may be obtained. (This alternative is
185 allowed only for noncommercial distribution and only if you
186 received the program in object code or executable form alone.)
188 Source code for a work means the preferred form of the work for making
189 modifications to it. For an executable file, complete source code means
190 all the source code for all modules it contains; but, as a special
191 exception, it need not include source code for modules which are standard
192 libraries that accompany the operating system on which the executable
193 file runs, or for standard header files or definitions files that
194 accompany that operating system.
196 4. You may not copy, modify, sublicense, distribute or transfer the
197 Program except as expressly provided under this General Public License.
198 Any attempt otherwise to copy, modify, sublicense, distribute or transfer
199 the Program is void, and will automatically terminate your rights to use
200 the Program under this License. However, parties who have received
201 copies, or rights to use copies, from you under this General Public
202 License will not have their licenses terminated so long as such parties
203 remain in full compliance.
205 5. By copying, distributing or modifying the Program (or any work based
206 on the Program) you indicate your acceptance of this license to do so,
207 and all its terms and conditions.
209 6. Each time you redistribute the Program (or any work based on the
210 Program), the recipient automatically receives a license from the original
211 licensor to copy, distribute or modify the Program subject to these
212 terms and conditions. You may not impose any further restrictions on the
213 recipients' exercise of the rights granted herein.
215 7. The Free Software Foundation may publish revised and/or new versions
216 of the General Public License from time to time. Such new versions will
217 be similar in spirit to the present version, but may differ in detail to
218 address new problems or concerns.
220 Each version is given a distinguishing version number. If the Program
221 specifies a version number of the license which applies to it and "any
222 later version", you have the option of following the terms and conditions
223 either of that version or of any later version published by the Free
224 Software Foundation. If the Program does not specify a version number of
225 the license, you may choose any version ever published by the Free Software
228 8. If you wish to incorporate parts of the Program into other free
229 programs whose distribution conditions are different, write to the author
230 to ask for permission. For software which is copyrighted by the Free
231 Software Foundation, write to the Free Software Foundation; we sometimes
232 make exceptions for this. Our decision will be guided by the two goals
233 of preserving the free status of all derivatives of our free software and
234 of promoting the sharing and reuse of software generally.
238 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
239 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
240 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
241 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
242 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
243 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
244 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
245 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
246 REPAIR OR CORRECTION.
248 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
249 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
250 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
251 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
252 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
253 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
254 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
255 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
256 POSSIBILITY OF SUCH DAMAGES.
258 END OF TERMS AND CONDITIONS
260 Appendix: How to Apply These Terms to Your New Programs
262 If you develop a new program, and you want it to be of the greatest
263 possible use to humanity, the best way to achieve this is to make it
264 free software which everyone can redistribute and change under these
267 To do so, attach the following notices to the program. It is safest to
268 attach them to the start of each source file to most effectively convey
269 the exclusion of warranty; and each file should have at least the
270 "copyright" line and a pointer to where the full notice is found.
272 <one line to give the program's name and a brief idea of what it does.>
273 Copyright (C) 19yy <name of author>
275 This program is free software; you can redistribute it and/or modify
276 it under the terms of the GNU General Public License as published by
277 the Free Software Foundation; either version 1, or (at your option)
280 This program is distributed in the hope that it will be useful,
281 but WITHOUT ANY WARRANTY; without even the implied warranty of
282 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
283 GNU General Public License for more details.
285 You should have received a copy of the GNU General Public License
286 along with this program; if not, write to the Free Software
287 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
290 Also add information on how to contact you by electronic and paper mail.
292 If the program is interactive, make it output a short notice like this
293 when it starts in an interactive mode:
295 Gnomovision version 69, Copyright (C) 19xx name of author
296 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
297 This is free software, and you are welcome to redistribute it
298 under certain conditions; type `show c' for details.
300 The hypothetical commands `show w' and `show c' should show the
301 appropriate parts of the General Public License. Of course, the
302 commands you use may be called something other than `show w' and `show
303 c'; they could even be mouse-clicks or menu items--whatever suits your
306 You should also get your employer (if you work as a programmer) or your
307 school, if any, to sign a "copyright disclaimer" for the program, if
308 necessary. Here a sample; alter the names:
310 Yoyodyne, Inc., hereby disclaims all copyright interest in the
311 program `Gnomovision' (a program to direct compilers to make passes
312 at assemblers) written by James Hacker.
314 <signature of Ty Coon>, 1 April 1989
315 Ty Coon, President of Vice
317 That's all there is to it!
320 --- Artistic --------------------------------------------------------------
322 The "Artistic License"
326 The intent of this document is to state the conditions under which a
327 Package may be copied, such that the Copyright Holder maintains some
328 semblance of artistic control over the development of the package,
329 while giving the users of the package the right to use and distribute
330 the Package in a more-or-less customary fashion, plus the right to make
331 reasonable modifications.
335 "Package" refers to the collection of files distributed by the
336 Copyright Holder, and derivatives of that collection of files
337 created through textual modification.
339 "Standard Version" refers to such a Package if it has not been
340 modified, or has been modified in accordance with the wishes
341 of the Copyright Holder as specified below.
343 "Copyright Holder" is whoever is named in the copyright or
344 copyrights for the package.
346 "You" is you, if you're thinking about copying or distributing
349 "Reasonable copying fee" is whatever you can justify on the
350 basis of media cost, duplication charges, time of people involved,
351 and so on. (You will not be required to justify it to the
352 Copyright Holder, but only to the computing community at large
353 as a market that must bear the fee.)
355 "Freely Available" means that no fee is charged for the item
356 itself, though there may be fees involved in handling the item.
357 It also means that recipients of the item may redistribute it
358 under the same conditions they received it.
360 1. You may make and give away verbatim copies of the source form of the
361 Standard Version of this Package without restriction, provided that you
362 duplicate all of the original copyright notices and associated disclaimers.
364 2. You may apply bug fixes, portability fixes and other modifications
365 derived from the Public Domain or from the Copyright Holder. A Package
366 modified in such a way shall still be considered the Standard Version.
368 3. You may otherwise modify your copy of this Package in any way, provided
369 that you insert a prominent notice in each changed file stating how and
370 when you changed that file, and provided that you do at least ONE of the
373 a) place your modifications in the Public Domain or otherwise make them
374 Freely Available, such as by posting said modifications to Usenet or
375 an equivalent medium, or placing the modifications on a major archive
376 site such as uunet.uu.net, or by allowing the Copyright Holder to include
377 your modifications in the Standard Version of the Package.
379 b) use the modified Package only within your corporation or organization.
381 c) rename any non-standard executables so the names do not conflict
382 with standard executables, which must also be provided, and provide
383 a separate manual page for each non-standard executable that clearly
384 documents how it differs from the Standard Version.
386 d) make other distribution arrangements with the Copyright Holder.
388 4. You may distribute the programs of this Package in object code or
389 executable form, provided that you do at least ONE of the following:
391 a) distribute a Standard Version of the executables and library files,
392 together with instructions (in the manual page or equivalent) on where
393 to get the Standard Version.
395 b) accompany the distribution with the machine-readable source of
396 the Package with your modifications.
398 c) give non-standard executables non-standard names, and clearly
399 document the differences in manual pages (or equivalent), together
400 with instructions on where to get the Standard Version.
402 d) make other distribution arrangements with the Copyright Holder.
404 5. You may charge a reasonable copying fee for any distribution of this
405 Package. You may charge any fee you choose for support of this
406 Package. You may not charge a fee for this Package itself. However,
407 you may distribute this Package in aggregate with other (possibly
408 commercial) programs as part of a larger (possibly commercial) software
409 distribution provided that you do not advertise this Package as a
410 product of your own. You may embed this Package's interpreter within
411 an executable of yours (by linking); this shall be construed as a mere
412 form of aggregation, provided that the complete Standard Version of the
413 interpreter is so embedded.
415 6. The scripts and library files supplied as input to or produced as
416 output from the programs of this Package do not automatically fall
417 under the copyright of this Package, but belong to whoever generated
418 them, and may be sold commercially, and may be aggregated with this
419 Package. If such scripts or library files are aggregated with this
420 Package via the so-called "undump" or "unexec" methods of producing a
421 binary executable image, then distribution of such an image shall
422 neither be construed as a distribution of this Package nor shall it
423 fall under the restrictions of Paragraphs 3 and 4, provided that you do
424 not represent such an executable image as a Standard Version of this
427 7. C subroutines (or comparably compiled subroutines in other
428 languages) supplied by you and linked into this Package in order to
429 emulate subroutines and variables of the language defined by this
430 Package shall not be considered part of this Package, but are the
431 equivalent of input as in Paragraph 6, provided these subroutines do
432 not change the language in any way that would cause it to fail the
433 regression tests for the language.
435 8. Aggregation of this Package with a commercial distribution is always
436 permitted provided that the use of this Package is embedded; that is,
437 when no overt attempt is made to make this Package's interfaces visible
438 to the end user of the commercial distribution. Such use shall not be
439 construed as a distribution of this Package.
441 9. The name of the Copyright Holder may not be used to endorse or promote
442 products derived from this software without specific prior written permission.
444 10. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
445 IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
446 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.