2 This package with all its parts is
4 Copyright (c) 1995 - 2015 by Steffen Beyer.
7 This package is free software; you can use, modify and redistribute
8 it under the same terms as Perl itself, i.e., at your option, under
9 the terms either of the "Artistic License" or the "GNU General Public
12 The C library at the core of the module "Date::Calc::XS" can, at your
13 discretion, also be used, modified and redistributed under the terms
14 of the "GNU Library General Public License".
16 Please refer to the files "Artistic.txt", "GNU_GPL.txt" and
17 "GNU_LGPL.txt" in the "license" subdirectory of this distribution
21 --- Artistic.txt ----------------------------------------------------------
26 The "Artistic License"
30 The intent of this document is to state the conditions under which a
31 Package may be copied, such that the Copyright Holder maintains some
32 semblance of artistic control over the development of the package,
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39 "Package" refers to the collection of files distributed by the
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41 created through textual modification.
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64 1. You may make and give away verbatim copies of the source form of the
65 Standard Version of this Package without restriction, provided that you
66 duplicate all of the original copyright notices and associated disclaimers.
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115 an executable of yours (by linking); this shall be construed as a mere
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120 output from the programs of this Package do not automatically fall
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127 fall under the restrictions of Paragraphs 3 and 4, provided that you do
128 not represent such an executable image as a Standard Version of this
131 7. C subroutines (or comparably compiled subroutines in other
132 languages) supplied by you and linked into this Package in order to
133 emulate subroutines and variables of the language defined by this
134 Package shall not be considered part of this Package, but are the
135 equivalent of input as in Paragraph 6, provided these subroutines do
136 not change the language in any way that would cause it to fail the
137 regression tests for the language.
139 8. Aggregation of this Package with a commercial distribution is always
140 permitted provided that the use of this Package is embedded; that is,
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145 9. The name of the Copyright Holder may not be used to endorse or promote
146 products derived from this software without specific prior written permission.
148 10. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
149 IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
150 WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
155 --- GNU_GPL.txt -----------------------------------------------------------
157 GNU GENERAL PUBLIC LICENSE
160 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
161 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
162 Everyone is permitted to copy and distribute verbatim copies
163 of this license document, but changing it is not allowed.
167 The licenses for most software are designed to take away your
168 freedom to share and change it. By contrast, the GNU General Public
169 License is intended to guarantee your freedom to share and change free
170 software--to make sure the software is free for all its users. This
171 General Public License applies to most of the Free Software
172 Foundation's software and to any other program whose authors commit to
173 using it. (Some other Free Software Foundation software is covered by
174 the GNU Library General Public License instead.) You can apply it to
177 When we speak of free software, we are referring to freedom, not
178 price. Our General Public Licenses are designed to make sure that you
179 have the freedom to distribute copies of free software (and charge for
180 this service if you wish), that you receive source code or can get it
181 if you want it, that you can change the software or use pieces of it
182 in new free programs; and that you know you can do these things.
184 To protect your rights, we need to make restrictions that forbid
185 anyone to deny you these rights or to ask you to surrender the rights.
186 These restrictions translate to certain responsibilities for you if you
187 distribute copies of the software, or if you modify it.
189 For example, if you distribute copies of such a program, whether
190 gratis or for a fee, you must give the recipients all the rights that
191 you have. You must make sure that they, too, receive or can get the
192 source code. And you must show them these terms so they know their
195 We protect your rights with two steps: (1) copyright the software, and
196 (2) offer you this license which gives you legal permission to copy,
197 distribute and/or modify the software.
199 Also, for each author's protection and ours, we want to make certain
200 that everyone understands that there is no warranty for this free
201 software. If the software is modified by someone else and passed on, we
202 want its recipients to know that what they have is not the original, so
203 that any problems introduced by others will not reflect on the original
204 authors' reputations.
206 Finally, any free program is threatened constantly by software
207 patents. We wish to avoid the danger that redistributors of a free
208 program will individually obtain patent licenses, in effect making the
209 program proprietary. To prevent this, we have made it clear that any
210 patent must be licensed for everyone's free use or not licensed at all.
212 The precise terms and conditions for copying, distribution and
215 GNU GENERAL PUBLIC LICENSE
216 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
218 0. This License applies to any program or other work which contains
219 a notice placed by the copyright holder saying it may be distributed
220 under the terms of this General Public License. The "Program", below,
221 refers to any such program or work, and a "work based on the Program"
222 means either the Program or any derivative work under copyright law:
223 that is to say, a work containing the Program or a portion of it,
224 either verbatim or with modifications and/or translated into another
225 language. (Hereinafter, translation is included without limitation in
226 the term "modification".) Each licensee is addressed as "you".
228 Activities other than copying, distribution and modification are not
229 covered by this License; they are outside its scope. The act of
230 running the Program is not restricted, and the output from the Program
231 is covered only if its contents constitute a work based on the
232 Program (independent of having been made by running the Program).
233 Whether that is true depends on what the Program does.
235 1. You may copy and distribute verbatim copies of the Program's
236 source code as you receive it, in any medium, provided that you
237 conspicuously and appropriately publish on each copy an appropriate
238 copyright notice and disclaimer of warranty; keep intact all the
239 notices that refer to this License and to the absence of any warranty;
240 and give any other recipients of the Program a copy of this License
241 along with the Program.
243 You may charge a fee for the physical act of transferring a copy, and
244 you may at your option offer warranty protection in exchange for a fee.
246 2. You may modify your copy or copies of the Program or any portion
247 of it, thus forming a work based on the Program, and copy and
248 distribute such modifications or work under the terms of Section 1
249 above, provided that you also meet all of these conditions:
251 a) You must cause the modified files to carry prominent notices
252 stating that you changed the files and the date of any change.
254 b) You must cause any work that you distribute or publish, that in
255 whole or in part contains or is derived from the Program or any
256 part thereof, to be licensed as a whole at no charge to all third
257 parties under the terms of this License.
259 c) If the modified program normally reads commands interactively
260 when run, you must cause it, when started running for such
261 interactive use in the most ordinary way, to print or display an
262 announcement including an appropriate copyright notice and a
263 notice that there is no warranty (or else, saying that you provide
264 a warranty) and that users may redistribute the program under
265 these conditions, and telling the user how to view a copy of this
266 License. (Exception: if the Program itself is interactive but
267 does not normally print such an announcement, your work based on
268 the Program is not required to print an announcement.)
270 These requirements apply to the modified work as a whole. If
271 identifiable sections of that work are not derived from the Program,
272 and can be reasonably considered independent and separate works in
273 themselves, then this License, and its terms, do not apply to those
274 sections when you distribute them as separate works. But when you
275 distribute the same sections as part of a whole which is a work based
276 on the Program, the distribution of the whole must be on the terms of
277 this License, whose permissions for other licensees extend to the
278 entire whole, and thus to each and every part regardless of who wrote it.
280 Thus, it is not the intent of this section to claim rights or contest
281 your rights to work written entirely by you; rather, the intent is to
282 exercise the right to control the distribution of derivative or
283 collective works based on the Program.
285 In addition, mere aggregation of another work not based on the Program
286 with the Program (or with a work based on the Program) on a volume of
287 a storage or distribution medium does not bring the other work under
288 the scope of this License.
290 3. You may copy and distribute the Program (or a work based on it,
291 under Section 2) in object code or executable form under the terms of
292 Sections 1 and 2 above provided that you also do one of the following:
294 a) Accompany it with the complete corresponding machine-readable
295 source code, which must be distributed under the terms of Sections
296 1 and 2 above on a medium customarily used for software interchange; or,
298 b) Accompany it with a written offer, valid for at least three
299 years, to give any third party, for a charge no more than your
300 cost of physically performing source distribution, a complete
301 machine-readable copy of the corresponding source code, to be
302 distributed under the terms of Sections 1 and 2 above on a medium
303 customarily used for software interchange; or,
305 c) Accompany it with the information you received as to the offer
306 to distribute corresponding source code. (This alternative is
307 allowed only for noncommercial distribution and only if you
308 received the program in object code or executable form with such
309 an offer, in accord with Subsection b above.)
311 The source code for a work means the preferred form of the work for
312 making modifications to it. For an executable work, complete source
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314 associated interface definition files, plus the scripts used to
315 control compilation and installation of the executable. However, as a
316 special exception, the source code distributed need not include
317 anything that is normally distributed (in either source or binary
318 form) with the major components (compiler, kernel, and so on) of the
319 operating system on which the executable runs, unless that component
320 itself accompanies the executable.
322 If distribution of executable or object code is made by offering
323 access to copy from a designated place, then offering equivalent
324 access to copy the source code from the same place counts as
325 distribution of the source code, even though third parties are not
326 compelled to copy the source along with the object code.
328 4. You may not copy, modify, sublicense, or distribute the Program
329 except as expressly provided under this License. Any attempt
330 otherwise to copy, modify, sublicense or distribute the Program is
331 void, and will automatically terminate your rights under this License.
332 However, parties who have received copies, or rights, from you under
333 this License will not have their licenses terminated so long as such
334 parties remain in full compliance.
336 5. You are not required to accept this License, since you have not
337 signed it. However, nothing else grants you permission to modify or
338 distribute the Program or its derivative works. These actions are
339 prohibited by law if you do not accept this License. Therefore, by
340 modifying or distributing the Program (or any work based on the
341 Program), you indicate your acceptance of this License to do so, and
342 all its terms and conditions for copying, distributing or modifying
343 the Program or works based on it.
345 6. Each time you redistribute the Program (or any work based on the
346 Program), the recipient automatically receives a license from the
347 original licensor to copy, distribute or modify the Program subject to
348 these terms and conditions. You may not impose any further
349 restrictions on the recipients' exercise of the rights granted herein.
350 You are not responsible for enforcing compliance by third parties to
353 7. If, as a consequence of a court judgment or allegation of patent
354 infringement or for any other reason (not limited to patent issues),
355 conditions are imposed on you (whether by court order, agreement or
356 otherwise) that contradict the conditions of this License, they do not
357 excuse you from the conditions of this License. If you cannot
358 distribute so as to satisfy simultaneously your obligations under this
359 License and any other pertinent obligations, then as a consequence you
360 may not distribute the Program at all. For example, if a patent
361 license would not permit royalty-free redistribution of the Program by
362 all those who receive copies directly or indirectly through you, then
363 the only way you could satisfy both it and this License would be to
364 refrain entirely from distribution of the Program.
366 If any portion of this section is held invalid or unenforceable under
367 any particular circumstance, the balance of the section is intended to
368 apply and the section as a whole is intended to apply in other
371 It is not the purpose of this section to induce you to infringe any
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373 such claims; this section has the sole purpose of protecting the
374 integrity of the free software distribution system, which is
375 implemented by public license practices. Many people have made
376 generous contributions to the wide range of software distributed
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379 to distribute software through any other system and a licensee cannot
382 This section is intended to make thoroughly clear what is believed to
383 be a consequence of the rest of this License.
385 8. If the distribution and/or use of the Program is restricted in
386 certain countries either by patents or by copyrighted interfaces, the
387 original copyright holder who places the Program under this License
388 may add an explicit geographical distribution limitation excluding
389 those countries, so that distribution is permitted only in or among
390 countries not thus excluded. In such case, this License incorporates
391 the limitation as if written in the body of this License.
393 9. The Free Software Foundation may publish revised and/or new versions
394 of the General Public License from time to time. Such new versions will
395 be similar in spirit to the present version, but may differ in detail to
396 address new problems or concerns.
398 Each version is given a distinguishing version number. If the Program
399 specifies a version number of this License which applies to it and "any
400 later version", you have the option of following the terms and conditions
401 either of that version or of any later version published by the Free
402 Software Foundation. If the Program does not specify a version number of
403 this License, you may choose any version ever published by the Free Software
406 10. If you wish to incorporate parts of the Program into other free
407 programs whose distribution conditions are different, write to the author
408 to ask for permission. For software which is copyrighted by the Free
409 Software Foundation, write to the Free Software Foundation; we sometimes
410 make exceptions for this. Our decision will be guided by the two goals
411 of preserving the free status of all derivatives of our free software and
412 of promoting the sharing and reuse of software generally.
416 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
417 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
418 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
419 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
420 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
421 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
422 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
423 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
424 REPAIR OR CORRECTION.
426 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
427 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
428 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
429 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
430 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
431 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
432 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
433 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
434 POSSIBILITY OF SUCH DAMAGES.
436 END OF TERMS AND CONDITIONS
438 How to Apply These Terms to Your New Programs
440 If you develop a new program, and you want it to be of the greatest
441 possible use to the public, the best way to achieve this is to make it
442 free software which everyone can redistribute and change under these terms.
444 To do so, attach the following notices to the program. It is safest
445 to attach them to the start of each source file to most effectively
446 convey the exclusion of warranty; and each file should have at least
447 the "copyright" line and a pointer to where the full notice is found.
449 <one line to give the program's name and a brief idea of what it does.>
450 Copyright (C) 19yy <name of author>
452 This program is free software; you can redistribute it and/or modify
453 it under the terms of the GNU General Public License as published by
454 the Free Software Foundation; either version 2 of the License, or
455 (at your option) any later version.
457 This program is distributed in the hope that it will be useful,
458 but WITHOUT ANY WARRANTY; without even the implied warranty of
459 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
460 GNU General Public License for more details.
462 You should have received a copy of the GNU General Public License
463 along with this program; if not, write to the Free Software
464 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
467 Also add information on how to contact you by electronic and paper mail.
469 If the program is interactive, make it output a short notice like this
470 when it starts in an interactive mode:
472 Gnomovision version 69, Copyright (C) 19yy name of author
473 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
474 This is free software, and you are welcome to redistribute it
475 under certain conditions; type `show c' for details.
477 The hypothetical commands `show w' and `show c' should show the appropriate
478 parts of the General Public License. Of course, the commands you use may
479 be called something other than `show w' and `show c'; they could even be
480 mouse-clicks or menu items--whatever suits your program.
482 You should also get your employer (if you work as a programmer) or your
483 school, if any, to sign a "copyright disclaimer" for the program, if
484 necessary. Here is a sample; alter the names:
486 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
487 `Gnomovision' (which makes passes at compilers) written by James Hacker.
489 <signature of Ty Coon>, 1 April 1989
490 Ty Coon, President of Vice
492 This General Public License does not permit incorporating your program into
493 proprietary programs. If your program is a subroutine library, you may
494 consider it more useful to permit linking proprietary applications with the
495 library. If this is what you want to do, use the GNU Library General
496 Public License instead of this License.
499 --- GNU_LGPL.txt ----------------------------------------------------------
501 GNU LIBRARY GENERAL PUBLIC LICENSE
504 Copyright (C) 1991 Free Software Foundation, Inc.
505 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
506 Everyone is permitted to copy and distribute verbatim copies
507 of this license document, but changing it is not allowed.
509 [This is the first released version of the library GPL. It is
510 numbered 2 because it goes with version 2 of the ordinary GPL.]
514 The licenses for most software are designed to take away your
515 freedom to share and change it. By contrast, the GNU General Public
516 Licenses are intended to guarantee your freedom to share and change
517 free software--to make sure the software is free for all its users.
519 This license, the Library General Public License, applies to some
520 specially designated Free Software Foundation software, and to any
521 other libraries whose authors decide to use it. You can use it for
524 When we speak of free software, we are referring to freedom, not
525 price. Our General Public Licenses are designed to make sure that you
526 have the freedom to distribute copies of free software (and charge for
527 this service if you wish), that you receive source code or can get it
528 if you want it, that you can change the software or use pieces of it
529 in new free programs; and that you know you can do these things.
531 To protect your rights, we need to make restrictions that forbid
532 anyone to deny you these rights or to ask you to surrender the rights.
533 These restrictions translate to certain responsibilities for you if
534 you distribute copies of the library, or if you modify it.
536 For example, if you distribute copies of the library, whether gratis
537 or for a fee, you must give the recipients all the rights that we gave
538 you. You must make sure that they, too, receive or can get the source
539 code. If you link a program with the library, you must provide
540 complete object files to the recipients so that they can relink them
541 with the library, after making changes to the library and recompiling
542 it. And you must show them these terms so they know their rights.
544 Our method of protecting your rights has two steps: (1) copyright
545 the library, and (2) offer you this license which gives you legal
546 permission to copy, distribute and/or modify the library.
548 Also, for each distributor's protection, we want to make certain
549 that everyone understands that there is no warranty for this free
550 library. If the library is modified by someone else and passed on, we
551 want its recipients to know that what they have is not the original
552 version, so that any problems introduced by others will not reflect on
553 the original authors' reputations.
555 Finally, any free program is threatened constantly by software
556 patents. We wish to avoid the danger that companies distributing free
557 software will individually obtain patent licenses, thus in effect
558 transforming the program into proprietary software. To prevent this,
559 we have made it clear that any patent must be licensed for everyone's
560 free use or not licensed at all.
562 Most GNU software, including some libraries, is covered by the ordinary
563 GNU General Public License, which was designed for utility programs. This
564 license, the GNU Library General Public License, applies to certain
565 designated libraries. This license is quite different from the ordinary
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569 The reason we have a separate public license for some libraries is that
570 they blur the distinction we usually make between modifying or adding to a
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573 analogous to running a utility program or application program. However, in
574 a textual and legal sense, the linked executable is a combined work, a
575 derivative of the original library, and the ordinary General Public License
578 Because of this blurred distinction, using the ordinary General
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580 sharing, because most developers did not use the libraries. We
581 concluded that weaker conditions might promote sharing better.
583 However, unrestricted linking of non-free programs would deprive the
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589 this as regards changes in header files, but we have achieved it as regards
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596 former contains code derived from the library, while the latter only
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599 Note that it is possible for a library to be covered by the ordinary
600 General Public License rather than by this special one.
602 GNU LIBRARY GENERAL PUBLIC LICENSE
603 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
605 0. This License Agreement applies to any software library which
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629 Activities other than copying, distribution and modification are not
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637 1. You may copy and distribute verbatim copies of the Library's
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978 <signature of Ty Coon>, 1 April 1990
979 Ty Coon, President of Vice
981 That's all there is to it!