Program that hide data in repeating whitespace in HTML.
python
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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  2. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  3. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  4. <head>
  5. <title>The GNU General Public License v3.0
  6. - GNU Project - Free Software Foundation</title>
  7. </head>
  8. <body>
  9. <p>
  10. <a href="#gpl3">GPLv3</a>
  11. </p>
  12. <h3>
  13. <a id="SEC1">GNU GENERAL PUBLIC LICENSE</a>
  14. </h3>
  15. <p>
  16. Version 2, June 1991
  17. </p>
  18. <pre>Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  19. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  20. Everyone is permitted to copy and distribute verbatim copies
  21. of this license document, but changing it is not allowed.
  22. </pre>
  23. <h3 id="preamble"><a id="SEC2">Preamble</a></h3>
  24. <p>
  25. The licenses for most software are designed to take away your
  26. freedom to share and change it. By contrast, the GNU General Public
  27. License is intended to guarantee your freedom to share and change free
  28. software--to make sure the software is free for all its users. This
  29. General Public License applies to most of the Free Software
  30. Foundation's software and to any other program whose authors commit to
  31. using it. (Some other Free Software Foundation software is covered by
  32. the GNU Lesser General Public License instead.) You can apply it to
  33. your programs, too.
  34. </p>
  35. <p>
  36. When we speak of free software, we are referring to freedom, not
  37. price. Our General Public Licenses are designed to make sure that you
  38. have the freedom to distribute copies of free software (and charge for
  39. this service if you wish), that you receive source code or can get it
  40. if you want it, that you can change the software or use pieces of it
  41. in new free programs; and that you know you can do these things.
  42. </p>
  43. <p>
  44. To protect your rights, we need to make restrictions that forbid
  45. anyone to deny you these rights or to ask you to surrender the rights.
  46. These restrictions translate to certain responsibilities for you if you
  47. distribute copies of the software, or if you modify it.
  48. </p>
  49. <p>
  50. For example, if you distribute copies of such a program, whether
  51. gratis or for a fee, you must give the recipients all the rights that
  52. you have. You must make sure that they, too, receive or can get the
  53. source code. And you must show them these terms so they know their
  54. rights.
  55. </p>
  56. <p>
  57. We protect your rights with two steps: (1) copyright the software, and
  58. (2) offer you this license which gives you legal permission to copy,
  59. distribute and/or modify the software.
  60. </p>
  61. <p>
  62. Also, for each author's protection and ours, we want to make certain
  63. that everyone understands that there is no warranty for this free
  64. software. If the software is modified by someone else and passed on, we
  65. want its recipients to know that what they have is not the original, so
  66. that any problems introduced by others will not reflect on the original
  67. authors' reputations.
  68. </p>
  69. <p>
  70. Finally, any free program is threatened constantly by software
  71. patents. We wish to avoid the danger that redistributors of a free
  72. program will individually obtain patent licenses, in effect making the
  73. program proprietary. To prevent this, we have made it clear that any
  74. patent must be licensed for everyone's free use or not licensed at all.
  75. </p>
  76. <p>
  77. The precise terms and conditions for copying, distribution and
  78. modification follow.
  79. </p>
  80. <h3 id="terms"><a id="SEC3">TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</a></h3>
  81. <p id="section0">
  82. <strong>0.</strong>
  83. This License applies to any program or other work which contains
  84. a notice placed by the copyright holder saying it may be distributed
  85. under the terms of this General Public License. The "Program", below,
  86. refers to any such program or work, and a "work based on the Program"
  87. means either the Program or any derivative work under copyright law:
  88. that is to say, a work containing the Program or a portion of it,
  89. either verbatim or with modifications and/or translated into another
  90. language. (Hereinafter, translation is included without limitation in
  91. the term "modification".) Each licensee is addressed as "you".
  92. </p>
  93. <p>
  94. Activities other than copying, distribution and modification are not
  95. covered by this License; they are outside its scope. The act of
  96. running the Program is not restricted, and the output from the Program
  97. is covered only if its contents constitute a work based on the
  98. Program (independent of having been made by running the Program).
  99. Whether that is true depends on what the Program does.
  100. </p>
  101. <p id="section1">
  102. <strong>1.</strong>
  103. You may copy and distribute verbatim copies of the Program's
  104. source code as you receive it, in any medium, provided that you
  105. conspicuously and appropriately publish on each copy an appropriate
  106. copyright notice and disclaimer of warranty; keep intact all the
  107. notices that refer to this License and to the absence of any warranty;
  108. and give any other recipients of the Program a copy of this License
  109. along with the Program.
  110. </p>
  111. <p>
  112. You may charge a fee for the physical act of transferring a copy, and
  113. you may at your option offer warranty protection in exchange for a fee.
  114. </p>
  115. <p id="section2">
  116. <strong>2.</strong>
  117. You may modify your copy or copies of the Program or any portion
  118. of it, thus forming a work based on the Program, and copy and
  119. distribute such modifications or work under the terms of Section 1
  120. above, provided that you also meet all of these conditions:
  121. </p>
  122. <dl>
  123. <dt></dt>
  124. <dd>
  125. <strong>a)</strong>
  126. You must cause the modified files to carry prominent notices
  127. stating that you changed the files and the date of any change.
  128. </dd>
  129. <dt></dt>
  130. <dd>
  131. <strong>b)</strong>
  132. You must cause any work that you distribute or publish, that in
  133. whole or in part contains or is derived from the Program or any
  134. part thereof, to be licensed as a whole at no charge to all third
  135. parties under the terms of this License.
  136. </dd>
  137. <dt></dt>
  138. <dd>
  139. <strong>c)</strong>
  140. If the modified program normally reads commands interactively
  141. when run, you must cause it, when started running for such
  142. interactive use in the most ordinary way, to print or display an
  143. announcement including an appropriate copyright notice and a
  144. notice that there is no warranty (or else, saying that you provide
  145. a warranty) and that users may redistribute the program under
  146. these conditions, and telling the user how to view a copy of this
  147. License. (Exception: if the Program itself is interactive but
  148. does not normally print such an announcement, your work based on
  149. the Program is not required to print an announcement.)
  150. </dd>
  151. </dl>
  152. <p>
  153. These requirements apply to the modified work as a whole. If
  154. identifiable sections of that work are not derived from the Program,
  155. and can be reasonably considered independent and separate works in
  156. themselves, then this License, and its terms, do not apply to those
  157. sections when you distribute them as separate works. But when you
  158. distribute the same sections as part of a whole which is a work based
  159. on the Program, the distribution of the whole must be on the terms of
  160. this License, whose permissions for other licensees extend to the
  161. entire whole, and thus to each and every part regardless of who wrote it.
  162. </p>
  163. <p>
  164. Thus, it is not the intent of this section to claim rights or contest
  165. your rights to work written entirely by you; rather, the intent is to
  166. exercise the right to control the distribution of derivative or
  167. collective works based on the Program.
  168. </p>
  169. <p>
  170. In addition, mere aggregation of another work not based on the Program
  171. with the Program (or with a work based on the Program) on a volume of
  172. a storage or distribution medium does not bring the other work under
  173. the scope of this License.
  174. </p>
  175. <p id="section3">
  176. <strong>3.</strong>
  177. You may copy and distribute the Program (or a work based on it,
  178. under Section 2) in object code or executable form under the terms of
  179. Sections 1 and 2 above provided that you also do one of the following:
  180. </p>
  181. <!-- we use this doubled UL to get the sub-sections indented, -->
  182. <!-- while making the bullets as unobvious as possible. -->
  183. <dl>
  184. <dt></dt>
  185. <dd>
  186. <strong>a)</strong>
  187. Accompany it with the complete corresponding machine-readable
  188. source code, which must be distributed under the terms of Sections
  189. 1 and 2 above on a medium customarily used for software interchange; or,
  190. </dd>
  191. <dt></dt>
  192. <dd>
  193. <strong>b)</strong>
  194. Accompany it with a written offer, valid for at least three
  195. years, to give any third party, for a charge no more than your
  196. cost of physically performing source distribution, a complete
  197. machine-readable copy of the corresponding source code, to be
  198. distributed under the terms of Sections 1 and 2 above on a medium
  199. customarily used for software interchange; or,
  200. </dd>
  201. <dt></dt>
  202. <dd>
  203. <strong>c)</strong>
  204. Accompany it with the information you received as to the offer
  205. to distribute corresponding source code. (This alternative is
  206. allowed only for noncommercial distribution and only if you
  207. received the program in object code or executable form with such
  208. an offer, in accord with Subsection b above.)
  209. </dd>
  210. </dl>
  211. <p>
  212. The source code for a work means the preferred form of the work for
  213. making modifications to it. For an executable work, complete source
  214. code means all the source code for all modules it contains, plus any
  215. associated interface definition files, plus the scripts used to
  216. control compilation and installation of the executable. However, as a
  217. special exception, the source code distributed need not include
  218. anything that is normally distributed (in either source or binary
  219. form) with the major components (compiler, kernel, and so on) of the
  220. operating system on which the executable runs, unless that component
  221. itself accompanies the executable.
  222. </p>
  223. <p>
  224. If distribution of executable or object code is made by offering
  225. access to copy from a designated place, then offering equivalent
  226. access to copy the source code from the same place counts as
  227. distribution of the source code, even though third parties are not
  228. compelled to copy the source along with the object code.
  229. </p>
  230. <p id="section4">
  231. <strong>4.</strong>
  232. You may not copy, modify, sublicense, or distribute the Program
  233. except as expressly provided under this License. Any attempt
  234. otherwise to copy, modify, sublicense or distribute the Program is
  235. void, and will automatically terminate your rights under this License.
  236. However, parties who have received copies, or rights, from you under
  237. this License will not have their licenses terminated so long as such
  238. parties remain in full compliance.
  239. </p>
  240. <p id="section5">
  241. <strong>5.</strong>
  242. You are not required to accept this License, since you have not
  243. signed it. However, nothing else grants you permission to modify or
  244. distribute the Program or its derivative works. These actions are
  245. prohibited by law if you do not accept this License. Therefore, by
  246. modifying or distributing the Program (or any work based on the
  247. Program), you indicate your acceptance of this License to do so, and
  248. all its terms and conditions for copying, distributing or modifying
  249. the Program or works based on it.
  250. </p>
  251. <p id="section6">
  252. <strong>6.</strong>
  253. Each time you redistribute the Program (or any work based on the
  254. Program), the recipient automatically receives a license from the
  255. original licensor to copy, distribute or modify the Program subject to
  256. these terms and conditions. You may not impose any further
  257. restrictions on the recipients' exercise of the rights granted herein.
  258. You are not responsible for enforcing compliance by third parties to
  259. this License.
  260. </p>
  261. <p id="section7">
  262. <strong>7.</strong>
  263. If, as a consequence of a court judgment or allegation of patent
  264. infringement or for any other reason (not limited to patent issues),
  265. conditions are imposed on you (whether by court order, agreement or
  266. otherwise) that contradict the conditions of this License, they do not
  267. excuse you from the conditions of this License. If you cannot
  268. distribute so as to satisfy simultaneously your obligations under this
  269. License and any other pertinent obligations, then as a consequence you
  270. may not distribute the Program at all. For example, if a patent
  271. license would not permit royalty-free redistribution of the Program by
  272. all those who receive copies directly or indirectly through you, then
  273. the only way you could satisfy both it and this License would be to
  274. refrain entirely from distribution of the Program.
  275. </p>
  276. <p>
  277. If any portion of this section is held invalid or unenforceable under
  278. any particular circumstance, the balance of the section is intended to
  279. apply and the section as a whole is intended to apply in other
  280. circumstances.
  281. </p>
  282. <p>
  283. It is not the purpose of this section to induce you to infringe any
  284. patents or other property right claims or to contest validity of any
  285. such claims; this section has the sole purpose of protecting the
  286. integrity of the free software distribution system, which is
  287. implemented by public license practices. Many people have made
  288. generous contributions to the wide range of software distributed
  289. through that system in reliance on consistent application of that
  290. system; it is up to the author/donor to decide if he or she is willing
  291. to distribute software through any other system and a licensee cannot
  292. impose that choice.
  293. </p>
  294. <p>
  295. This section is intended to make thoroughly clear what is believed to
  296. be a consequence of the rest of this License.
  297. </p>
  298. <p id="section8">
  299. <strong>8.</strong>
  300. If the distribution and/or use of the Program is restricted in
  301. certain countries either by patents or by copyrighted interfaces, the
  302. original copyright holder who places the Program under this License
  303. may add an explicit geographical distribution limitation excluding
  304. those countries, so that distribution is permitted only in or among
  305. countries not thus excluded. In such case, this License incorporates
  306. the limitation as if written in the body of this License.
  307. </p>
  308. <p id="section9">
  309. <strong>9.</strong>
  310. The Free Software Foundation may publish revised and/or new versions
  311. of the General Public License from time to time. Such new versions will
  312. be similar in spirit to the present version, but may differ in detail to
  313. address new problems or concerns.
  314. </p>
  315. <p>
  316. Each version is given a distinguishing version number. If the Program
  317. specifies a version number of this License which applies to it and "any
  318. later version", you have the option of following the terms and conditions
  319. either of that version or of any later version published by the Free
  320. Software Foundation. If the Program does not specify a version number of
  321. this License, you may choose any version ever published by the Free Software
  322. Foundation.
  323. </p>
  324. <p id="section10">
  325. <strong>10.</strong>
  326. If you wish to incorporate parts of the Program into other free
  327. programs whose distribution conditions are different, write to the author
  328. to ask for permission. For software which is copyrighted by the Free
  329. Software Foundation, write to the Free Software Foundation; we sometimes
  330. make exceptions for this. Our decision will be guided by the two goals
  331. of preserving the free status of all derivatives of our free software and
  332. of promoting the sharing and reuse of software generally.
  333. </p>
  334. <p id="section11"><strong>NO WARRANTY</strong></p>
  335. <p>
  336. <strong>11.</strong>
  337. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  338. FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
  339. OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  340. PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
  341. OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  342. MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
  343. TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
  344. PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
  345. REPAIR OR CORRECTION.
  346. </p>
  347. <p id="section12">
  348. <strong>12.</strong>
  349. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  350. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  351. REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  352. INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
  353. OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
  354. TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
  355. YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
  356. PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
  357. POSSIBILITY OF SUCH DAMAGES.
  358. </p>
  359. <h3>END OF TERMS AND CONDITIONS</h3>
  360. <h3 id="howto"><a id="SEC4">How to Apply These Terms to Your New Programs</a></h3>
  361. <p>
  362. If you develop a new program, and you want it to be of the greatest
  363. possible use to the public, the best way to achieve this is to make it
  364. free software which everyone can redistribute and change under these terms.
  365. </p>
  366. <p>
  367. To do so, attach the following notices to the program. It is safest
  368. to attach them to the start of each source file to most effectively
  369. convey the exclusion of warranty; and each file should have at least
  370. the "copyright" line and a pointer to where the full notice is found.
  371. </p>
  372. <pre><var>one line to give the program's name and an idea of what it does.</var>
  373. Copyright (C) <var>yyyy</var> <var>name of author</var>
  374. This program is free software; you can redistribute it and/or
  375. modify it under the terms of the GNU General Public License
  376. as published by the Free Software Foundation; either version 2
  377. of the License, or (at your option) any later version.
  378. This program is distributed in the hope that it will be useful,
  379. but WITHOUT ANY WARRANTY; without even the implied warranty of
  380. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  381. GNU General Public License for more details.
  382. You should have received a copy of the GNU General Public License
  383. along with this program; if not, write to the Free Software
  384. Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  385. </pre>
  386. <p>
  387. Also add information on how to contact you by electronic and paper mail.
  388. </p>
  389. <p>
  390. If the program is interactive, make it output a short notice like this
  391. when it starts in an interactive mode:
  392. </p>
  393. <pre>Gnomovision version 69, Copyright (C) <var>year</var> <var>name of author</var>
  394. Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
  395. type `show w'. This is free software, and you are welcome
  396. to redistribute it under certain conditions; type `show c'
  397. for details.
  398. </pre>
  399. <p>
  400. The hypothetical commands <samp>`show w'</samp> and <samp>`show c'</samp> should show
  401. the appropriate parts of the General Public License. Of course, the
  402. commands you use may be called something other than <samp>`show w'</samp> and
  403. <samp>`show c'</samp>; they could even be mouse-clicks or menu items--whatever
  404. suits your program.
  405. </p>
  406. <p>
  407. You should also get your employer (if you work as a programmer) or your
  408. school, if any, to sign a "copyright disclaimer" for the program, if
  409. necessary. Here is a sample; alter the names:
  410. </p>
  411. <pre>Yoyodyne, Inc., hereby disclaims all copyright
  412. interest in the program `Gnomovision'
  413. (which makes passes at compilers) written
  414. by James Hacker.
  415. <var>signature of Ty Coon</var>, 1 April 1989
  416. Ty Coon, President of Vice
  417. </pre>
  418. <p>
  419. This General Public License does not permit incorporating your program into
  420. proprietary programs. If your program is a subroutine library, you may
  421. consider it more useful to permit linking proprietary applications with the
  422. library. If this is what you want to do, use the
  423. <a href="http://www.gnu.org/licenses/lgpl.html">GNU Lesser General Public License</a>
  424. instead of this License.
  425. </p>
  426. </div>
  427. <p id="backtotop"><a href="#header">BACK TO TOP</a>
  428. <h3 id="gpl3" style="text-align: center;">GNU GENERAL PUBLIC LICENSE</h3>
  429. <p style="text-align: center;">Version 3, 29 June 2007</p>
  430. <p>Copyright © 2007 Free Software Foundation, Inc.
  431. &lt;<a href="http://fsf.org/">http://fsf.org/</a>&gt;</p><p>
  432. Everyone is permitted to copy and distribute verbatim copies
  433. of this license document, but changing it is not allowed.</p>
  434. <h3><a name="preamble"></a>Preamble</h3>
  435. <p>The GNU General Public License is a free, copyleft license for
  436. software and other kinds of works.</p>
  437. <p>The licenses for most software and other practical works are designed
  438. to take away your freedom to share and change the works. By contrast,
  439. the GNU General Public License is intended to guarantee your freedom to
  440. share and change all versions of a program--to make sure it remains free
  441. software for all its users. We, the Free Software Foundation, use the
  442. GNU General Public License for most of our software; it applies also to
  443. any other work released this way by its authors. You can apply it to
  444. your programs, too.</p>
  445. <p>When we speak of free software, we are referring to freedom, not
  446. price. Our General Public Licenses are designed to make sure that you
  447. have the freedom to distribute copies of free software (and charge for
  448. them if you wish), that you receive source code or can get it if you
  449. want it, that you can change the software or use pieces of it in new
  450. free programs, and that you know you can do these things.</p>
  451. <p>To protect your rights, we need to prevent others from denying you
  452. these rights or asking you to surrender the rights. Therefore, you have
  453. certain responsibilities if you distribute copies of the software, or if
  454. you modify it: responsibilities to respect the freedom of others.</p>
  455. <p>For example, if you distribute copies of such a program, whether
  456. gratis or for a fee, you must pass on to the recipients the same
  457. freedoms that you received. You must make sure that they, too, receive
  458. or can get the source code. And you must show them these terms so they
  459. know their rights.</p>
  460. <p>Developers that use the GNU GPL protect your rights with two steps:
  461. (1) assert copyright on the software, and (2) offer you this License
  462. giving you legal permission to copy, distribute and/or modify it.</p>
  463. <p>For the developers' and authors' protection, the GPL clearly explains
  464. that there is no warranty for this free software. For both users' and
  465. authors' sake, the GPL requires that modified versions be marked as
  466. changed, so that their problems will not be attributed erroneously to
  467. authors of previous versions.</p>
  468. <p>Some devices are designed to deny users access to install or run
  469. modified versions of the software inside them, although the manufacturer
  470. can do so. This is fundamentally incompatible with the aim of
  471. protecting users' freedom to change the software. The systematic
  472. pattern of such abuse occurs in the area of products for individuals to
  473. use, which is precisely where it is most unacceptable. Therefore, we
  474. have designed this version of the GPL to prohibit the practice for those
  475. products. If such problems arise substantially in other domains, we
  476. stand ready to extend this provision to those domains in future versions
  477. of the GPL, as needed to protect the freedom of users.</p>
  478. <p>Finally, every program is threatened constantly by software patents.
  479. States should not allow patents to restrict development and use of
  480. software on general-purpose computers, but in those that do, we wish to
  481. avoid the special danger that patents applied to a free program could
  482. make it effectively proprietary. To prevent this, the GPL assures that
  483. patents cannot be used to render the program non-free.</p>
  484. <p>The precise terms and conditions for copying, distribution and
  485. modification follow.</p>
  486. <h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
  487. <h4><a name="section0"></a>0. Definitions.</h4>
  488. <p>“This License” refers to version 3 of the GNU General Public License.</p>
  489. <p>“Copyright” also means copyright-like laws that apply to other kinds of
  490. works, such as semiconductor masks.</p>
  491. <p>“The Program” refers to any copyrightable work licensed under this
  492. License. Each licensee is addressed as “you”. “Licensees” and
  493. “recipients” may be individuals or organizations.</p>
  494. <p>To “modify” a work means to copy from or adapt all or part of the work
  495. in a fashion requiring copyright permission, other than the making of an
  496. exact copy. The resulting work is called a “modified version” of the
  497. earlier work or a work “based on” the earlier work.</p>
  498. <p>A “covered work” means either the unmodified Program or a work based
  499. on the Program.</p>
  500. <p>To “propagate” a work means to do anything with it that, without
  501. permission, would make you directly or secondarily liable for
  502. infringement under applicable copyright law, except executing it on a
  503. computer or modifying a private copy. Propagation includes copying,
  504. distribution (with or without modification), making available to the
  505. public, and in some countries other activities as well.</p>
  506. <p>To “convey” a work means any kind of propagation that enables other
  507. parties to make or receive copies. Mere interaction with a user through
  508. a computer network, with no transfer of a copy, is not conveying.</p>
  509. <p>An interactive user interface displays “Appropriate Legal Notices”
  510. to the extent that it includes a convenient and prominently visible
  511. feature that (1) displays an appropriate copyright notice, and (2)
  512. tells the user that there is no warranty for the work (except to the
  513. extent that warranties are provided), that licensees may convey the
  514. work under this License, and how to view a copy of this License. If
  515. the interface presents a list of user commands or options, such as a
  516. menu, a prominent item in the list meets this criterion.</p>
  517. <h4><a name="section1"></a>1. Source Code.</h4>
  518. <p>The “source code” for a work means the preferred form of the work
  519. for making modifications to it. “Object code” means any non-source
  520. form of a work.</p>
  521. <p>A “Standard Interface” means an interface that either is an official
  522. standard defined by a recognized standards body, or, in the case of
  523. interfaces specified for a particular programming language, one that
  524. is widely used among developers working in that language.</p>
  525. <p>The “System Libraries” of an executable work include anything, other
  526. than the work as a whole, that (a) is included in the normal form of
  527. packaging a Major Component, but which is not part of that Major
  528. Component, and (b) serves only to enable use of the work with that
  529. Major Component, or to implement a Standard Interface for which an
  530. implementation is available to the public in source code form. A
  531. “Major Component”, in this context, means a major essential component
  532. (kernel, window system, and so on) of the specific operating system
  533. (if any) on which the executable work runs, or a compiler used to
  534. produce the work, or an object code interpreter used to run it.</p>
  535. <p>The “Corresponding Source” for a work in object code form means all
  536. the source code needed to generate, install, and (for an executable
  537. work) run the object code and to modify the work, including scripts to
  538. control those activities. However, it does not include the work's
  539. System Libraries, or general-purpose tools or generally available free
  540. programs which are used unmodified in performing those activities but
  541. which are not part of the work. For example, Corresponding Source
  542. includes interface definition files associated with source files for
  543. the work, and the source code for shared libraries and dynamically
  544. linked subprograms that the work is specifically designed to require,
  545. such as by intimate data communication or control flow between those
  546. subprograms and other parts of the work.</p>
  547. <p>The Corresponding Source need not include anything that users
  548. can regenerate automatically from other parts of the Corresponding
  549. Source.</p>
  550. <p>The Corresponding Source for a work in source code form is that
  551. same work.</p>
  552. <h4><a name="section2"></a>2. Basic Permissions.</h4>
  553. <p>All rights granted under this License are granted for the term of
  554. copyright on the Program, and are irrevocable provided the stated
  555. conditions are met. This License explicitly affirms your unlimited
  556. permission to run the unmodified Program. The output from running a
  557. covered work is covered by this License only if the output, given its
  558. content, constitutes a covered work. This License acknowledges your
  559. rights of fair use or other equivalent, as provided by copyright law.</p>
  560. <p>You may make, run and propagate covered works that you do not
  561. convey, without conditions so long as your license otherwise remains
  562. in force. You may convey covered works to others for the sole purpose
  563. of having them make modifications exclusively for you, or provide you
  564. with facilities for running those works, provided that you comply with
  565. the terms of this License in conveying all material for which you do
  566. not control copyright. Those thus making or running the covered works
  567. for you must do so exclusively on your behalf, under your direction
  568. and control, on terms that prohibit them from making any copies of
  569. your copyrighted material outside their relationship with you.</p>
  570. <p>Conveying under any other circumstances is permitted solely under
  571. the conditions stated below. Sublicensing is not allowed; section 10
  572. makes it unnecessary.</p>
  573. <h4><a name="section3"></a>3. Protecting Users' Legal Rights From Anti-Circumvention Law.</h4>
  574. <p>No covered work shall be deemed part of an effective technological
  575. measure under any applicable law fulfilling obligations under article
  576. 11 of the WIPO copyright treaty adopted on 20 December 1996, or
  577. similar laws prohibiting or restricting circumvention of such
  578. measures.</p>
  579. <p>When you convey a covered work, you waive any legal power to forbid
  580. circumvention of technological measures to the extent such circumvention
  581. is effected by exercising rights under this License with respect to
  582. the covered work, and you disclaim any intention to limit operation or
  583. modification of the work as a means of enforcing, against the work's
  584. users, your or third parties' legal rights to forbid circumvention of
  585. technological measures.</p>
  586. <h4><a name="section4"></a>4. Conveying Verbatim Copies.</h4>
  587. <p>You may convey verbatim copies of the Program's source code as you
  588. receive it, in any medium, provided that you conspicuously and
  589. appropriately publish on each copy an appropriate copyright notice;
  590. keep intact all notices stating that this License and any
  591. non-permissive terms added in accord with section 7 apply to the code;
  592. keep intact all notices of the absence of any warranty; and give all
  593. recipients a copy of this License along with the Program.</p>
  594. <p>You may charge any price or no price for each copy that you convey,
  595. and you may offer support or warranty protection for a fee.</p>
  596. <h4><a name="section5"></a>5. Conveying Modified Source Versions.</h4>
  597. <p>You may convey a work based on the Program, or the modifications to
  598. produce it from the Program, in the form of source code under the
  599. terms of section 4, provided that you also meet all of these conditions:</p>
  600. <ul>
  601. <li>a) The work must carry prominent notices stating that you modified
  602. it, and giving a relevant date.</li>
  603. <li>b) The work must carry prominent notices stating that it is
  604. released under this License and any conditions added under section
  605. 7. This requirement modifies the requirement in section 4 to
  606. “keep intact all notices”.</li>
  607. <li>c) You must license the entire work, as a whole, under this
  608. License to anyone who comes into possession of a copy. This
  609. License will therefore apply, along with any applicable section 7
  610. additional terms, to the whole of the work, and all its parts,
  611. regardless of how they are packaged. This License gives no
  612. permission to license the work in any other way, but it does not
  613. invalidate such permission if you have separately received it.</li>
  614. <li>d) If the work has interactive user interfaces, each must display
  615. Appropriate Legal Notices; however, if the Program has interactive
  616. interfaces that do not display Appropriate Legal Notices, your
  617. work need not make them do so.</li>
  618. </ul>
  619. <p>A compilation of a covered work with other separate and independent
  620. works, which are not by their nature extensions of the covered work,
  621. and which are not combined with it such as to form a larger program,
  622. in or on a volume of a storage or distribution medium, is called an
  623. “aggregate” if the compilation and its resulting copyright are not
  624. used to limit the access or legal rights of the compilation's users
  625. beyond what the individual works permit. Inclusion of a covered work
  626. in an aggregate does not cause this License to apply to the other
  627. parts of the aggregate.</p>
  628. <h4><a name="section6"></a>6. Conveying Non-Source Forms.</h4>
  629. <p>You may convey a covered work in object code form under the terms
  630. of sections 4 and 5, provided that you also convey the
  631. machine-readable Corresponding Source under the terms of this License,
  632. in one of these ways:</p>
  633. <ul>
  634. <li>a) Convey the object code in, or embodied in, a physical product
  635. (including a physical distribution medium), accompanied by the
  636. Corresponding Source fixed on a durable physical medium
  637. customarily used for software interchange.</li>
  638. <li>b) Convey the object code in, or embodied in, a physical product
  639. (including a physical distribution medium), accompanied by a
  640. written offer, valid for at least three years and valid for as
  641. long as you offer spare parts or customer support for that product
  642. model, to give anyone who possesses the object code either (1) a
  643. copy of the Corresponding Source for all the software in the
  644. product that is covered by this License, on a durable physical
  645. medium customarily used for software interchange, for a price no
  646. more than your reasonable cost of physically performing this
  647. conveying of source, or (2) access to copy the
  648. Corresponding Source from a network server at no charge.</li>
  649. <li>c) Convey individual copies of the object code with a copy of the
  650. written offer to provide the Corresponding Source. This
  651. alternative is allowed only occasionally and noncommercially, and
  652. only if you received the object code with such an offer, in accord
  653. with subsection 6b.</li>
  654. <li>d) Convey the object code by offering access from a designated
  655. place (gratis or for a charge), and offer equivalent access to the
  656. Corresponding Source in the same way through the same place at no
  657. further charge. You need not require recipients to copy the
  658. Corresponding Source along with the object code. If the place to
  659. copy the object code is a network server, the Corresponding Source
  660. may be on a different server (operated by you or a third party)
  661. that supports equivalent copying facilities, provided you maintain
  662. clear directions next to the object code saying where to find the
  663. Corresponding Source. Regardless of what server hosts the
  664. Corresponding Source, you remain obligated to ensure that it is
  665. available for as long as needed to satisfy these requirements.</li>
  666. <li>e) Convey the object code using peer-to-peer transmission, provided
  667. you inform other peers where the object code and Corresponding
  668. Source of the work are being offered to the general public at no
  669. charge under subsection 6d.</li>
  670. </ul>
  671. <p>A separable portion of the object code, whose source code is excluded
  672. from the Corresponding Source as a System Library, need not be
  673. included in conveying the object code work.</p>
  674. <p>A “User Product” is either (1) a “consumer product”, which means any
  675. tangible personal property which is normally used for personal, family,
  676. or household purposes, or (2) anything designed or sold for incorporation
  677. into a dwelling. In determining whether a product is a consumer product,
  678. doubtful cases shall be resolved in favor of coverage. For a particular
  679. product received by a particular user, “normally used” refers to a
  680. typical or common use of that class of product, regardless of the status
  681. of the particular user or of the way in which the particular user
  682. actually uses, or expects or is expected to use, the product. A product
  683. is a consumer product regardless of whether the product has substantial
  684. commercial, industrial or non-consumer uses, unless such uses represent
  685. the only significant mode of use of the product.</p>
  686. <p>“Installation Information” for a User Product means any methods,
  687. procedures, authorization keys, or other information required to install
  688. and execute modified versions of a covered work in that User Product from
  689. a modified version of its Corresponding Source. The information must
  690. suffice to ensure that the continued functioning of the modified object
  691. code is in no case prevented or interfered with solely because
  692. modification has been made.</p>
  693. <p>If you convey an object code work under this section in, or with, or
  694. specifically for use in, a User Product, and the conveying occurs as
  695. part of a transaction in which the right of possession and use of the
  696. User Product is transferred to the recipient in perpetuity or for a
  697. fixed term (regardless of how the transaction is characterized), the
  698. Corresponding Source conveyed under this section must be accompanied
  699. by the Installation Information. But this requirement does not apply
  700. if neither you nor any third party retains the ability to install
  701. modified object code on the User Product (for example, the work has
  702. been installed in ROM).</p>
  703. <p>The requirement to provide Installation Information does not include a
  704. requirement to continue to provide support service, warranty, or updates
  705. for a work that has been modified or installed by the recipient, or for
  706. the User Product in which it has been modified or installed. Access to a
  707. network may be denied when the modification itself materially and
  708. adversely affects the operation of the network or violates the rules and
  709. protocols for communication across the network.</p>
  710. <p>Corresponding Source conveyed, and Installation Information provided,
  711. in accord with this section must be in a format that is publicly
  712. documented (and with an implementation available to the public in
  713. source code form), and must require no special password or key for
  714. unpacking, reading or copying.</p>
  715. <h4><a name="section7"></a>7. Additional Terms.</h4>
  716. <p>“Additional permissions” are terms that supplement the terms of this
  717. License by making exceptions from one or more of its conditions.
  718. Additional permissions that are applicable to the entire Program shall
  719. be treated as though they were included in this License, to the extent
  720. that they are valid under applicable law. If additional permissions
  721. apply only to part of the Program, that part may be used separately
  722. under those permissions, but the entire Program remains governed by
  723. this License without regard to the additional permissions.</p>
  724. <p>When you convey a copy of a covered work, you may at your option
  725. remove any additional permissions from that copy, or from any part of
  726. it. (Additional permissions may be written to require their own
  727. removal in certain cases when you modify the work.) You may place
  728. additional permissions on material, added by you to a covered work,
  729. for which you have or can give appropriate copyright permission.</p>
  730. <p>Notwithstanding any other provision of this License, for material you
  731. add to a covered work, you may (if authorized by the copyright holders of
  732. that material) supplement the terms of this License with terms:</p>
  733. <ul>
  734. <li>a) Disclaiming warranty or limiting liability differently from the
  735. terms of sections 15 and 16 of this License; or</li>
  736. <li>b) Requiring preservation of specified reasonable legal notices or
  737. author attributions in that material or in the Appropriate Legal
  738. Notices displayed by works containing it; or</li>
  739. <li>c) Prohibiting misrepresentation of the origin of that material, or
  740. requiring that modified versions of such material be marked in
  741. reasonable ways as different from the original version; or</li>
  742. <li>d) Limiting the use for publicity purposes of names of licensors or
  743. authors of the material; or</li>
  744. <li>e) Declining to grant rights under trademark law for use of some
  745. trade names, trademarks, or service marks; or</li>
  746. <li>f) Requiring indemnification of licensors and authors of that
  747. material by anyone who conveys the material (or modified versions of
  748. it) with contractual assumptions of liability to the recipient, for
  749. any liability that these contractual assumptions directly impose on
  750. those licensors and authors.</li>
  751. </ul>
  752. <p>All other non-permissive additional terms are considered “further
  753. restrictions” within the meaning of section 10. If the Program as you
  754. received it, or any part of it, contains a notice stating that it is
  755. governed by this License along with a term that is a further
  756. restriction, you may remove that term. If a license document contains
  757. a further restriction but permits relicensing or conveying under this
  758. License, you may add to a covered work material governed by the terms
  759. of that license document, provided that the further restriction does
  760. not survive such relicensing or conveying.</p>
  761. <p>If you add terms to a covered work in accord with this section, you
  762. must place, in the relevant source files, a statement of the
  763. additional terms that apply to those files, or a notice indicating
  764. where to find the applicable terms.</p>
  765. <p>Additional terms, permissive or non-permissive, may be stated in the
  766. form of a separately written license, or stated as exceptions;
  767. the above requirements apply either way.</p>
  768. <h4><a name="section8"></a>8. Termination.</h4>
  769. <p>You may not propagate or modify a covered work except as expressly
  770. provided under this License. Any attempt otherwise to propagate or
  771. modify it is void, and will automatically terminate your rights under
  772. this License (including any patent licenses granted under the third
  773. paragraph of section 11).</p>
  774. <p>However, if you cease all violation of this License, then your
  775. license from a particular copyright holder is reinstated (a)
  776. provisionally, unless and until the copyright holder explicitly and
  777. finally terminates your license, and (b) permanently, if the copyright
  778. holder fails to notify you of the violation by some reasonable means
  779. prior to 60 days after the cessation.</p>
  780. <p>Moreover, your license from a particular copyright holder is
  781. reinstated permanently if the copyright holder notifies you of the
  782. violation by some reasonable means, this is the first time you have
  783. received notice of violation of this License (for any work) from that
  784. copyright holder, and you cure the violation prior to 30 days after
  785. your receipt of the notice.</p>
  786. <p>Termination of your rights under this section does not terminate the
  787. licenses of parties who have received copies or rights from you under
  788. this License. If your rights have been terminated and not permanently
  789. reinstated, you do not qualify to receive new licenses for the same
  790. material under section 10.</p>
  791. <h4><a name="section9"></a>9. Acceptance Not Required for Having Copies.</h4>
  792. <p>You are not required to accept this License in order to receive or
  793. run a copy of the Program. Ancillary propagation of a covered work
  794. occurring solely as a consequence of using peer-to-peer transmission
  795. to receive a copy likewise does not require acceptance. However,
  796. nothing other than this License grants you permission to propagate or
  797. modify any covered work. These actions infringe copyright if you do
  798. not accept this License. Therefore, by modifying or propagating a
  799. covered work, you indicate your acceptance of this License to do so.</p>
  800. <h4><a name="section10"></a>10. Automatic Licensing of Downstream Recipients.</h4>
  801. <p>Each time you convey a covered work, the recipient automatically
  802. receives a license from the original licensors, to run, modify and
  803. propagate that work, subject to this License. You are not responsible
  804. for enforcing compliance by third parties with this License.</p>
  805. <p>An “entity transaction” is a transaction transferring control of an
  806. organization, or substantially all assets of one, or subdividing an
  807. organization, or merging organizations. If propagation of a covered
  808. work results from an entity transaction, each party to that
  809. transaction who receives a copy of the work also receives whatever
  810. licenses to the work the party's predecessor in interest had or could
  811. give under the previous paragraph, plus a right to possession of the
  812. Corresponding Source of the work from the predecessor in interest, if
  813. the predecessor has it or can get it with reasonable efforts.</p>
  814. <p>You may not impose any further restrictions on the exercise of the
  815. rights granted or affirmed under this License. For example, you may
  816. not impose a license fee, royalty, or other charge for exercise of
  817. rights granted under this License, and you may not initiate litigation
  818. (including a cross-claim or counterclaim in a lawsuit) alleging that
  819. any patent claim is infringed by making, using, selling, offering for
  820. sale, or importing the Program or any portion of it.</p>
  821. <h4><a name="section11"></a>11. Patents.</h4>
  822. <p>A “contributor” is a copyright holder who authorizes use under this
  823. License of the Program or a work on which the Program is based. The
  824. work thus licensed is called the contributor's “contributor version”.</p>
  825. <p>A contributor's “essential patent claims” are all patent claims
  826. owned or controlled by the contributor, whether already acquired or
  827. hereafter acquired, that would be infringed by some manner, permitted
  828. by this License, of making, using, or selling its contributor version,
  829. but do not include claims that would be infringed only as a
  830. consequence of further modification of the contributor version. For
  831. purposes of this definition, “control” includes the right to grant
  832. patent sublicenses in a manner consistent with the requirements of
  833. this License.</p>
  834. <p>Each contributor grants you a non-exclusive, worldwide, royalty-free
  835. patent license under the contributor's essential patent claims, to
  836. make, use, sell, offer for sale, import and otherwise run, modify and
  837. propagate the contents of its contributor version.</p>
  838. <p>In the following three paragraphs, a “patent license” is any express
  839. agreement or commitment, however denominated, not to enforce a patent
  840. (such as an express permission to practice a patent or covenant not to
  841. sue for patent infringement). To “grant” such a patent license to a
  842. party means to make such an agreement or commitment not to enforce a
  843. patent against the party.</p>
  844. <p>If you convey a covered work, knowingly relying on a patent license,
  845. and the Corresponding Source of the work is not available for anyone
  846. to copy, free of charge and under the terms of this License, through a
  847. publicly available network server or other readily accessible means,
  848. then you must either (1) cause the Corresponding Source to be so
  849. available, or (2) arrange to deprive yourself of the benefit of the
  850. patent license for this particular work, or (3) arrange, in a manner
  851. consistent with the requirements of this License, to extend the patent
  852. license to downstream recipients. “Knowingly relying” means you have
  853. actual knowledge that, but for the patent license, your conveying the
  854. covered work in a country, or your recipient's use of the covered work
  855. in a country, would infringe one or more identifiable patents in that
  856. country that you have reason to believe are valid.</p>
  857. <p>If, pursuant to or in connection with a single transaction or
  858. arrangement, you convey, or propagate by procuring conveyance of, a
  859. covered work, and grant a patent license to some of the parties
  860. receiving the covered work authorizing them to use, propagate, modify
  861. or convey a specific copy of the covered work, then the patent license
  862. you grant is automatically extended to all recipients of the covered
  863. work and works based on it.</p>
  864. <p>A patent license is “discriminatory” if it does not include within
  865. the scope of its coverage, prohibits the exercise of, or is
  866. conditioned on the non-exercise of one or more of the rights that are
  867. specifically granted under this License. You may not convey a covered
  868. work if you are a party to an arrangement with a third party that is
  869. in the business of distributing software, under which you make payment
  870. to the third party based on the extent of your activity of conveying
  871. the work, and under which the third party grants, to any of the
  872. parties who would receive the covered work from you, a discriminatory
  873. patent license (a) in connection with copies of the covered work
  874. conveyed by you (or copies made from those copies), or (b) primarily
  875. for and in connection with specific products or compilations that
  876. contain the covered work, unless you entered into that arrangement,
  877. or that patent license was granted, prior to 28 March 2007.</p>
  878. <p>Nothing in this License shall be construed as excluding or limiting
  879. any implied license or other defenses to infringement that may
  880. otherwise be available to you under applicable patent law.</p>
  881. <h4><a name="section12"></a>12. No Surrender of Others' Freedom.</h4>
  882. <p>If conditions are imposed on you (whether by court order, agreement or
  883. otherwise) that contradict the conditions of this License, they do not
  884. excuse you from the conditions of this License. If you cannot convey a
  885. covered work so as to satisfy simultaneously your obligations under this
  886. License and any other pertinent obligations, then as a consequence you may
  887. not convey it at all. For example, if you agree to terms that obligate you
  888. to collect a royalty for further conveying from those to whom you convey
  889. the Program, the only way you could satisfy both those terms and this
  890. License would be to refrain entirely from conveying the Program.</p>
  891. <h4><a name="section13"></a>13. Use with the GNU Affero General Public License.</h4>
  892. <p>Notwithstanding any other provision of this License, you have
  893. permission to link or combine any covered work with a work licensed
  894. under version 3 of the GNU Affero General Public License into a single
  895. combined work, and to convey the resulting work. The terms of this
  896. License will continue to apply to the part which is the covered work,
  897. but the special requirements of the GNU Affero General Public License,
  898. section 13, concerning interaction through a network will apply to the
  899. combination as such.</p>
  900. <h4><a name="section14"></a>14. Revised Versions of this License.</h4>
  901. <p>The Free Software Foundation may publish revised and/or new versions of
  902. the GNU General Public License from time to time. Such new versions will
  903. be similar in spirit to the present version, but may differ in detail to
  904. address new problems or concerns.</p>
  905. <p>Each version is given a distinguishing version number. If the
  906. Program specifies that a certain numbered version of the GNU General
  907. Public License “or any later version” applies to it, you have the
  908. option of following the terms and conditions either of that numbered
  909. version or of any later version published by the Free Software
  910. Foundation. If the Program does not specify a version number of the
  911. GNU General Public License, you may choose any version ever published
  912. by the Free Software Foundation.</p>
  913. <p>If the Program specifies that a proxy can decide which future
  914. versions of the GNU General Public License can be used, that proxy's
  915. public statement of acceptance of a version permanently authorizes you
  916. to choose that version for the Program.</p>
  917. <p>Later license versions may give you additional or different
  918. permissions. However, no additional obligations are imposed on any
  919. author or copyright holder as a result of your choosing to follow a
  920. later version.</p>
  921. <h4><a name="section15"></a>15. Disclaimer of Warranty.</h4>
  922. <p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
  923. APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  924. HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
  925. OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
  926. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  927. PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
  928. IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
  929. ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
  930. <h4><a name="section16"></a>16. Limitation of Liability.</h4>
  931. <p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  932. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
  933. THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
  934. GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
  935. USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
  936. DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
  937. PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
  938. EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
  939. SUCH DAMAGES.</p>
  940. <h4><a name="section17"></a>17. Interpretation of Sections 15 and 16.</h4>
  941. <p>If the disclaimer of warranty and limitation of liability provided
  942. above cannot be given local legal effect according to their terms,
  943. reviewing courts shall apply local law that most closely approximates
  944. an absolute waiver of all civil liability in connection with the
  945. Program, unless a warranty or assumption of liability accompanies a
  946. copy of the Program in return for a fee.</p>
  947. <p>END OF TERMS AND CONDITIONS</p>
  948. <h3><a name="howto"></a>How to Apply These Terms to Your New Programs</h3>
  949. <p>If you develop a new program, and you want it to be of the greatest
  950. possible use to the public, the best way to achieve this is to make it
  951. free software which everyone can redistribute and change under these terms.</p>
  952. <p>To do so, attach the following notices to the program. It is safest
  953. to attach them to the start of each source file to most effectively
  954. state the exclusion of warranty; and each file should have at least
  955. the “copyright” line and a pointer to where the full notice is found.</p>
  956. <pre> &lt;one line to give the program's name and a brief idea of what it does.&gt;
  957. Copyright (C) &lt;year&gt; &lt;name of author&gt;
  958. This program is free software: you can redistribute it and/or modify
  959. it under the terms of the GNU General Public License as published by
  960. the Free Software Foundation, either version 3 of the License, or
  961. (at your option) any later version.
  962. This program is distributed in the hope that it will be useful,
  963. but WITHOUT ANY WARRANTY; without even the implied warranty of
  964. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  965. GNU General Public License for more details.
  966. You should have received a copy of the GNU General Public License
  967. along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.
  968. </pre>
  969. <p>Also add information on how to contact you by electronic and paper mail.</p>
  970. <p>If the program does terminal interaction, make it output a short
  971. notice like this when it starts in an interactive mode:</p>
  972. <pre> &lt;program&gt; Copyright (C) &lt;year&gt; &lt;name of author&gt;
  973. This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  974. This is free software, and you are welcome to redistribute it
  975. under certain conditions; type `show c' for details.
  976. </pre>
  977. <p>The hypothetical commands `show w' and `show c' should show the appropriate
  978. parts of the General Public License. Of course, your program's commands
  979. might be different; for a GUI interface, you would use an “about box”.</p>
  980. <p>You should also get your employer (if you work as a programmer) or school,
  981. if any, to sign a “copyright disclaimer” for the program, if necessary.
  982. For more information on this, and how to apply and follow the GNU GPL, see
  983. &lt;<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>&gt;.</p>
  984. <p>The GNU General Public License does not permit incorporating your program
  985. into proprietary programs. If your program is a subroutine library, you
  986. may consider it more useful to permit linking proprietary applications with
  987. the library. If this is what you want to do, use the GNU Lesser General
  988. Public License instead of this License. But first, please read
  989. &lt;<a href="http://www.gnu.org/philosophy/why-not-lgpl.html">http://www.gnu.org/philosophy/why-not-lgpl.html</a>&gt;.</p>
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