license.txt 34 KB

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  1. /*--------------------------------------------------------------------
  2. GNU GENERAL PUBLIC LICENSE
  3. Version 3, 29 June 2007
  4. --------------------------------------------------------------------*/
  5. Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
  6. Everyone is permitted to copy and distribute verbatim copies
  7. of this license document, but changing it is not allowed.
  8. Preamble
  9. The GNU General Public License is a free, copyleft license for
  10. software and other kinds of works.
  11. The licenses for most software and other practical works are designed
  12. to take away your freedom to share and change the works. By contrast,
  13. the GNU General Public License is intended to guarantee your freedom to
  14. share and change all versions of a program--to make sure it remains free
  15. software for all its users. We, the Free Software Foundation, use the
  16. GNU General Public License for most of our software; it applies also to
  17. any other work released this way by its authors. You can apply it to
  18. your programs, too.
  19. When we speak of free software, we are referring to freedom, not
  20. price. Our General Public Licenses are designed to make sure that you
  21. have the freedom to distribute copies of free software (and charge for
  22. them if you wish), that you receive source code or can get it if you
  23. want it, that you can change the software or use pieces of it in new
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  26. these rights or asking you to surrender the rights. Therefore, you have
  27. certain responsibilities if you distribute copies of the software, or if
  28. you modify it: responsibilities to respect the freedom of others.
  29. For example, if you distribute copies of such a program, whether
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  34. Developers that use the GNU GPL protect your rights with two steps:
  35. (1) assert copyright on the software, and (2) offer you this License
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  46. pattern of such abuse occurs in the area of products for individuals to
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  60. TERMS AND CONDITIONS
  61. 0. Definitions.
  62. "This License" refers to version 3 of the GNU General Public License.
  63. "Copyright" also means copyright-like laws that apply to other kinds of
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  126. 2. Basic Permissions.
  127. All rights granted under this License are granted for the term of
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  200. 6. Conveying Non-Source Forms.
  201. You may convey a covered work in object code form under the terms
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  206. (including a physical distribution medium), accompanied by the
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  214. copy of the Corresponding Source for all the software in the
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  225. d) Convey the object code by offering access from a designated
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  244. A "User Product" is either (1) a "consumer product", which means any
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  256. "Installation Information" for a User Product means any methods,
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  263. If you convey an object code work under this section in, or with, or
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  276. the User Product in which it has been modified or installed. Access to a
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  279. protocols for communication across the network.
  280. Corresponding Source conveyed, and Installation Information provided,
  281. in accord with this section must be in a format that is publicly
  282. documented (and with an implementation available to the public in
  283. source code form), and must require no special password or key for
  284. unpacking, reading or copying.
  285. 7. Additional Terms.
  286. "Additional permissions" are terms that supplement the terms of this
  287. License by making exceptions from one or more of its conditions.
  288. Additional permissions that are applicable to the entire Program shall
  289. be treated as though they were included in this License, to the extent
  290. that they are valid under applicable law. If additional permissions
  291. apply only to part of the Program, that part may be used separately
  292. under those permissions, but the entire Program remains governed by
  293. this License without regard to the additional permissions.
  294. When you convey a copy of a covered work, you may at your option
  295. remove any additional permissions from that copy, or from any part of
  296. it. (Additional permissions may be written to require their own
  297. removal in certain cases when you modify the work.) You may place
  298. additional permissions on material, added by you to a covered work,
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  300. Notwithstanding any other provision of this License, for material you
  301. add to a covered work, you may (if authorized by the copyright holders of
  302. that material) supplement the terms of this License with terms:
  303. a) Disclaiming warranty or limiting liability differently from the
  304. terms of sections 15 and 16 of this License; or
  305. b) Requiring preservation of specified reasonable legal notices or
  306. author attributions in that material or in the Appropriate Legal
  307. Notices displayed by works containing it; or
  308. c) Prohibiting misrepresentation of the origin of that material, or
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  311. d) Limiting the use for publicity purposes of names of licensors or
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  315. f) Requiring indemnification of licensors and authors of that
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  318. any liability that these contractual assumptions directly impose on
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  320. All other non-permissive additional terms are considered "further
  321. restrictions" within the meaning of section 10. If the Program as you
  322. received it, or any part of it, contains a notice stating that it is
  323. governed by this License along with a term that is a further
  324. restriction, you may remove that term. If a license document contains
  325. a further restriction but permits relicensing or conveying under this
  326. License, you may add to a covered work material governed by the terms
  327. of that license document, provided that the further restriction does
  328. not survive such relicensing or conveying.
  329. If you add terms to a covered work in accord with this section, you
  330. must place, in the relevant source files, a statement of the
  331. additional terms that apply to those files, or a notice indicating
  332. where to find the applicable terms.
  333. Additional terms, permissive or non-permissive, may be stated in the
  334. form of a separately written license, or stated as exceptions;
  335. the above requirements apply either way.
  336. 8. Termination.
  337. You may not propagate or modify a covered work except as expressly
  338. provided under this License. Any attempt otherwise to propagate or
  339. modify it is void, and will automatically terminate your rights under
  340. this License (including any patent licenses granted under the third
  341. paragraph of section 11).
  342. However, if you cease all violation of this License, then your
  343. license from a particular copyright holder is reinstated (a)
  344. provisionally, unless and until the copyright holder explicitly and
  345. finally terminates your license, and (b) permanently, if the copyright
  346. holder fails to notify you of the violation by some reasonable means
  347. prior to 60 days after the cessation.
  348. Moreover, your license from a particular copyright holder is
  349. reinstated permanently if the copyright holder notifies you of the
  350. violation by some reasonable means, this is the first time you have
  351. received notice of violation of this License (for any work) from that
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  354. Termination of your rights under this section does not terminate the
  355. licenses of parties who have received copies or rights from you under
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  357. reinstated, you do not qualify to receive new licenses for the same
  358. material under section 10.
  359. 9. Acceptance Not Required for Having Copies.
  360. You are not required to accept this License in order to receive or
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  362. occurring solely as a consequence of using peer-to-peer transmission
  363. to receive a copy likewise does not require acceptance. However,
  364. nothing other than this License grants you permission to propagate or
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  366. not accept this License. Therefore, by modifying or propagating a
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  368. 10. Automatic Licensing of Downstream Recipients.
  369. Each time you convey a covered work, the recipient automatically
  370. receives a license from the original licensors, to run, modify and
  371. propagate that work, subject to this License. You are not responsible
  372. for enforcing compliance by third parties with this License.
  373. An "entity transaction" is a transaction transferring control of an
  374. organization, or substantially all assets of one, or subdividing an
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  386. (including a cross-claim or counterclaim in a lawsuit) alleging that
  387. any patent claim is infringed by making, using, selling, offering for
  388. sale, or importing the Program or any portion of it.
  389. 11. Patents.
  390. A "contributor" is a copyright holder who authorizes use under this
  391. License of the Program or a work on which the Program is based. The
  392. work thus licensed is called the contributor's "contributor version".
  393. A contributor's "essential patent claims" are all patent claims
  394. owned or controlled by the contributor, whether already acquired or
  395. hereafter acquired, that would be infringed by some manner, permitted
  396. by this License, of making, using, or selling its contributor version,
  397. but do not include claims that would be infringed only as a
  398. consequence of further modification of the contributor version. For
  399. purposes of this definition, "control" includes the right to grant
  400. patent sublicenses in a manner consistent with the requirements of
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  403. patent license under the contributor's essential patent claims, to
  404. make, use, sell, offer for sale, import and otherwise run, modify and
  405. propagate the contents of its contributor version.
  406. In the following three paragraphs, a "patent license" is any express
  407. agreement or commitment, however denominated, not to enforce a patent
  408. (such as an express permission to practice a patent or covenant not to
  409. sue for patent infringement). To "grant" such a patent license to a
  410. party means to make such an agreement or commitment not to enforce a
  411. patent against the party.
  412. If you convey a covered work, knowingly relying on a patent license,
  413. and the Corresponding Source of the work is not available for anyone
  414. to copy, free of charge and under the terms of this License, through a
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  416. then you must either (1) cause the Corresponding Source to be so
  417. available, or (2) arrange to deprive yourself of the benefit of the
  418. patent license for this particular work, or (3) arrange, in a manner
  419. consistent with the requirements of this License, to extend the patent
  420. license to downstream recipients. "Knowingly relying" means you have
  421. actual knowledge that, but for the patent license, your conveying the
  422. covered work in a country, or your recipient's use of the covered work
  423. in a country, would infringe one or more identifiable patents in that
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  425. If, pursuant to or in connection with a single transaction or
  426. arrangement, you convey, or propagate by procuring conveyance of, a
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  432. A patent license is "discriminatory" if it does not include within
  433. the scope of its coverage, prohibits the exercise of, or is
  434. conditioned on the non-exercise of one or more of the rights that are
  435. specifically granted under this License. You may not convey a covered
  436. work if you are a party to an arrangement with a third party that is
  437. in the business of distributing software, under which you make payment
  438. to the third party based on the extent of your activity of conveying
  439. the work, and under which the third party grants, to any of the
  440. parties who would receive the covered work from you, a discriminatory
  441. patent license (a) in connection with copies of the covered work
  442. conveyed by you (or copies made from those copies), or (b) primarily
  443. for and in connection with specific products or compilations that
  444. contain the covered work, unless you entered into that arrangement,
  445. or that patent license was granted, prior to 28 March 2007.
  446. Nothing in this License shall be construed as excluding or limiting
  447. any implied license or other defenses to infringement that may
  448. otherwise be available to you under applicable patent law.
  449. 12. No Surrender of Others' Freedom.
  450. If conditions are imposed on you (whether by court order, agreement or
  451. otherwise) that contradict the conditions of this License, they do not
  452. excuse you from the conditions of this License. If you cannot convey a
  453. covered work so as to satisfy simultaneously your obligations under this
  454. License and any other pertinent obligations, then as a consequence you may
  455. not convey it at all. For example, if you agree to terms that obligate you
  456. to collect a royalty for further conveying from those to whom you convey
  457. the Program, the only way you could satisfy both those terms and this
  458. License would be to refrain entirely from conveying the Program.
  459. 13. Use with the GNU Affero General Public License.
  460. Notwithstanding any other provision of this License, you have
  461. permission to link or combine any covered work with a work licensed
  462. under version 3 of the GNU Affero General Public License into a single
  463. combined work, and to convey the resulting work. The terms of this
  464. License will continue to apply to the part which is the covered work,
  465. but the special requirements of the GNU Affero General Public License,
  466. section 13, concerning interaction through a network will apply to the
  467. combination as such.
  468. 14. Revised Versions of this License.
  469. The Free Software Foundation may publish revised and/or new versions of
  470. the GNU General Public License from time to time. Such new versions will
  471. be similar in spirit to the present version, but may differ in detail to
  472. address new problems or concerns.
  473. Each version is given a distinguishing version number. If the
  474. Program specifies that a certain numbered version of the GNU General
  475. Public License "or any later version" applies to it, you have the
  476. option of following the terms and conditions either of that numbered
  477. version or of any later version published by the Free Software
  478. Foundation. If the Program does not specify a version number of the
  479. GNU General Public License, you may choose any version ever published
  480. by the Free Software Foundation.
  481. If the Program specifies that a proxy can decide which future
  482. versions of the GNU General Public License can be used, that proxy's
  483. public statement of acceptance of a version permanently authorizes you
  484. to choose that version for the Program.
  485. Later license versions may give you additional or different
  486. permissions. However, no additional obligations are imposed on any
  487. author or copyright holder as a result of your choosing to follow a
  488. later version.
  489. 15. Disclaimer of Warranty.
  490. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
  491. APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  492. HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
  493. OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
  494. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  495. PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
  496. IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
  497. ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  498. 16. Limitation of Liability.
  499. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  500. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
  501. THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
  502. GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
  503. USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
  504. DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
  505. PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
  506. EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
  507. SUCH DAMAGES.
  508. 17. Interpretation of Sections 15 and 16.
  509. If the disclaimer of warranty and limitation of liability provided
  510. above cannot be given local legal effect according to their terms,
  511. reviewing courts shall apply local law that most closely approximates
  512. an absolute waiver of all civil liability in connection with the
  513. Program, unless a warranty or assumption of liability accompanies a
  514. copy of the Program in return for a fee.
  515. END OF TERMS AND CONDITIONS
  516. How to Apply These Terms to Your New Programs
  517. If you develop a new program, and you want it to be of the greatest
  518. possible use to the public, the best way to achieve this is to make it
  519. free software which everyone can redistribute and change under these terms.
  520. To do so, attach the following notices to the program. It is safest
  521. to attach them to the start of each source file to most effectively
  522. state the exclusion of warranty; and each file should have at least
  523. the "copyright" line and a pointer to where the full notice is found.
  524. <one line to give the program's name and a brief idea of what it does.>
  525. Copyright © <year> <name of author>
  526. This program is free software: you can redistribute it and/or modify
  527. it under the terms of the GNU General Public License as published by
  528. the Free Software Foundation, either version 3 of the License, or
  529. (at your option) any later version.
  530. This program is distributed in the hope that it will be useful,
  531. but WITHOUT ANY WARRANTY; without even the implied warranty of
  532. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  533. GNU General Public License for more details.
  534. You should have received a copy of the GNU General Public License
  535. along with this program. If not, see <http://www.gnu.org/licenses/>.
  536. Also add information on how to contact you by electronic and paper mail.
  537. If the program does terminal interaction, make it output a short
  538. notice like this when it starts in an interactive mode:
  539. <program> Copyright © <year> <name of author>
  540. This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  541. This is free software, and you are welcome to redistribute it
  542. under certain conditions; type `show c' for details.
  543. The hypothetical commands `show w' and `show c' should show the appropriate
  544. parts of the General Public License. Of course, your program's commands
  545. might be different; for a GUI interface, you would use an "about box".
  546. You should also get your employer (if you work as a programmer) or school,
  547. if any, to sign a "copyright disclaimer" for the program, if necessary.
  548. For more information on this, and how to apply and follow the GNU GPL, see
  549. <http://www.gnu.org/licenses/>.
  550. The GNU General Public License does not permit incorporating your program
  551. into proprietary programs. If your program is a subroutine library, you
  552. may consider it more useful to permit linking proprietary applications with
  553. the library. If this is what you want to do, use the GNU Lesser General
  554. Public License instead of this License. But first, please read
  555. <http://www.gnu.org/philosophy/why-not-lgpl.html>.