1For ease of distribution, lesserphp is under a dual license. 2You are free to pick which one suits your needs. 3 4 5 6 7MIT LICENSE 8 9 10 11 12Copyright (c) 2013 - 2015 Leaf Corcoran, http://leafo.net/lessphp 13Copyright (c) 2016 - Marcus Schwarz, https://www.maswaba.de 14 15Permission is hereby granted, free of charge, to any person obtaining 16a copy of this software and associated documentation files (the 17"Software"), to deal in the Software without restriction, including 18without limitation the rights to use, copy, modify, merge, publish, 19distribute, sublicense, and/or sell copies of the Software, and to 20permit persons to whom the Software is furnished to do so, subject to 21the following conditions: 22 23The above copyright notice and this permission notice shall be 24included in all copies or substantial portions of the Software. 25 26THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 30LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 31OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 32WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 33 34 35 36 37GPL VERSION 3 38 39 40 41 42 GNU GENERAL PUBLIC LICENSE 43 Version 3, 29 June 2007 44 45 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> 46 Everyone is permitted to copy and distribute verbatim copies 47 of this license document, but changing it is not allowed. 48 49 Preamble 50 51 The GNU General Public License is a free, copyleft license for 52software and other kinds of works. 53 54 The licenses for most software and other practical works are designed 55to take away your freedom to share and change the works. By contrast, 56the GNU General Public License is intended to guarantee your freedom to 57share and change all versions of a program--to make sure it remains free 58software for all its users. We, the Free Software Foundation, use the 59GNU General Public License for most of our software; it applies also to 60any other work released this way by its authors. You can apply it to 61your programs, too. 62 63 When we speak of free software, we are referring to freedom, not 64price. Our General Public Licenses are designed to make sure that you 65have the freedom to distribute copies of free software (and charge for 66them if you wish), that you receive source code or can get it if you 67want it, that you can change the software or use pieces of it in new 68free programs, and that you know you can do these things. 69 70 To protect your rights, we need to prevent others from denying you 71these rights or asking you to surrender the rights. Therefore, you have 72certain responsibilities if you distribute copies of the software, or if 73you modify it: responsibilities to respect the freedom of others. 74 75 For example, if you distribute copies of such a program, whether 76gratis or for a fee, you must pass on to the recipients the same 77freedoms that you received. You must make sure that they, too, receive 78or can get the source code. And you must show them these terms so they 79know their rights. 80 81 Developers that use the GNU GPL protect your rights with two steps: 82(1) assert copyright on the software, and (2) offer you this License 83giving you legal permission to copy, distribute and/or modify it. 84 85 For the developers' and authors' protection, the GPL clearly explains 86that there is no warranty for this free software. For both users' and 87authors' sake, the GPL requires that modified versions be marked as 88changed, so that their problems will not be attributed erroneously to 89authors of previous versions. 90 91 Some devices are designed to deny users access to install or run 92modified versions of the software inside them, although the manufacturer 93can do so. This is fundamentally incompatible with the aim of 94protecting users' freedom to change the software. The systematic 95pattern of such abuse occurs in the area of products for individuals to 96use, which is precisely where it is most unacceptable. Therefore, we 97have designed this version of the GPL to prohibit the practice for those 98products. If such problems arise substantially in other domains, we 99stand ready to extend this provision to those domains in future versions 100of the GPL, as needed to protect the freedom of users. 101 102 Finally, every program is threatened constantly by software patents. 103States should not allow patents to restrict development and use of 104software on general-purpose computers, but in those that do, we wish to 105avoid the special danger that patents applied to a free program could 106make it effectively proprietary. To prevent this, the GPL assures that 107patents cannot be used to render the program non-free. 108 109 The precise terms and conditions for copying, distribution and 110modification follow. 111 112 TERMS AND CONDITIONS 113 114 0. Definitions. 115 116 "This License" refers to version 3 of the GNU General Public License. 117 118 "Copyright" also means copyright-like laws that apply to other kinds of 119works, such as semiconductor masks. 120 121 "The Program" refers to any copyrightable work licensed under this 122License. Each licensee is addressed as "you". "Licensees" and 123"recipients" may be individuals or organizations. 124 125 To "modify" a work means to copy from or adapt all or part of the work 126in a fashion requiring copyright permission, other than the making of an 127exact copy. The resulting work is called a "modified version" of the 128earlier work or a work "based on" the earlier work. 129 130 A "covered work" means either the unmodified Program or a work based 131on the Program. 132 133 To "propagate" a work means to do anything with it that, without 134permission, would make you directly or secondarily liable for 135infringement under applicable copyright law, except executing it on a 136computer or modifying a private copy. Propagation includes copying, 137distribution (with or without modification), making available to the 138public, and in some countries other activities as well. 139 140 To "convey" a work means any kind of propagation that enables other 141parties to make or receive copies. Mere interaction with a user through 142a computer network, with no transfer of a copy, is not conveying. 143 144 An interactive user interface displays "Appropriate Legal Notices" 145to the extent that it includes a convenient and prominently visible 146feature that (1) displays an appropriate copyright notice, and (2) 147tells the user that there is no warranty for the work (except to the 148extent that warranties are provided), that licensees may convey the 149work under this License, and how to view a copy of this License. If 150the interface presents a list of user commands or options, such as a 151menu, a prominent item in the list meets this criterion. 152 153 1. Source Code. 154 155 The "source code" for a work means the preferred form of the work 156for making modifications to it. "Object code" means any non-source 157form of a work. 158 159 A "Standard Interface" means an interface that either is an official 160standard defined by a recognized standards body, or, in the case of 161interfaces specified for a particular programming language, one that 162is widely used among developers working in that language. 163 164 The "System Libraries" of an executable work include anything, other 165than the work as a whole, that (a) is included in the normal form of 166packaging a Major Component, but which is not part of that Major 167Component, and (b) serves only to enable use of the work with that 168Major Component, or to implement a Standard Interface for which an 169implementation is available to the public in source code form. A 170"Major Component", in this context, means a major essential component 171(kernel, window system, and so on) of the specific operating system 172(if any) on which the executable work runs, or a compiler used to 173produce the work, or an object code interpreter used to run it. 174 175 The "Corresponding Source" for a work in object code form means all 176the source code needed to generate, install, and (for an executable 177work) run the object code and to modify the work, including scripts to 178control those activities. However, it does not include the work's 179System Libraries, or general-purpose tools or generally available free 180programs which are used unmodified in performing those activities but 181which are not part of the work. For example, Corresponding Source 182includes interface definition files associated with source files for 183the work, and the source code for shared libraries and dynamically 184linked subprograms that the work is specifically designed to require, 185such as by intimate data communication or control flow between those 186subprograms and other parts of the work. 187 188 The Corresponding Source need not include anything that users 189can regenerate automatically from other parts of the Corresponding 190Source. 191 192 The Corresponding Source for a work in source code form is that 193same work. 194 195 2. Basic Permissions. 196 197 All rights granted under this License are granted for the term of 198copyright on the Program, and are irrevocable provided the stated 199conditions are met. This License explicitly affirms your unlimited 200permission to run the unmodified Program. The output from running a 201covered work is covered by this License only if the output, given its 202content, constitutes a covered work. This License acknowledges your 203rights of fair use or other equivalent, as provided by copyright law. 204 205 You may make, run and propagate covered works that you do not 206convey, without conditions so long as your license otherwise remains 207in force. You may convey covered works to others for the sole purpose 208of having them make modifications exclusively for you, or provide you 209with facilities for running those works, provided that you comply with 210the terms of this License in conveying all material for which you do 211not control copyright. Those thus making or running the covered works 212for you must do so exclusively on your behalf, under your direction 213and control, on terms that prohibit them from making any copies of 214your copyrighted material outside their relationship with you. 215 216 Conveying under any other circumstances is permitted solely under 217the conditions stated below. Sublicensing is not allowed; section 10 218makes it unnecessary. 219 220 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 221 222 No covered work shall be deemed part of an effective technological 223measure under any applicable law fulfilling obligations under article 22411 of the WIPO copyright treaty adopted on 20 December 1996, or 225similar laws prohibiting or restricting circumvention of such 226measures. 227 228 When you convey a covered work, you waive any legal power to forbid 229circumvention of technological measures to the extent such circumvention 230is effected by exercising rights under this License with respect to 231the covered work, and you disclaim any intention to limit operation or 232modification of the work as a means of enforcing, against the work's 233users, your or third parties' legal rights to forbid circumvention of 234technological measures. 235 236 4. Conveying Verbatim Copies. 237 238 You may convey verbatim copies of the Program's source code as you 239receive it, in any medium, provided that you conspicuously and 240appropriately publish on each copy an appropriate copyright notice; 241keep intact all notices stating that this License and any 242non-permissive terms added in accord with section 7 apply to the code; 243keep intact all notices of the absence of any warranty; and give all 244recipients a copy of this License along with the Program. 245 246 You may charge any price or no price for each copy that you convey, 247and you may offer support or warranty protection for a fee. 248 249 5. Conveying Modified Source Versions. 250 251 You may convey a work based on the Program, or the modifications to 252produce it from the Program, in the form of source code under the 253terms of section 4, provided that you also meet all of these conditions: 254 255 a) The work must carry prominent notices stating that you modified 256 it, and giving a relevant date. 257 258 b) The work must carry prominent notices stating that it is 259 released under this License and any conditions added under section 260 7. This requirement modifies the requirement in section 4 to 261 "keep intact all notices". 262 263 c) You must license the entire work, as a whole, under this 264 License to anyone who comes into possession of a copy. This 265 License will therefore apply, along with any applicable section 7 266 additional terms, to the whole of the work, and all its parts, 267 regardless of how they are packaged. This License gives no 268 permission to license the work in any other way, but it does not 269 invalidate such permission if you have separately received it. 270 271 d) If the work has interactive user interfaces, each must display 272 Appropriate Legal Notices; however, if the Program has interactive 273 interfaces that do not display Appropriate Legal Notices, your 274 work need not make them do so. 275 276 A compilation of a covered work with other separate and independent 277works, which are not by their nature extensions of the covered work, 278and which are not combined with it such as to form a larger program, 279in or on a volume of a storage or distribution medium, is called an 280"aggregate" if the compilation and its resulting copyright are not 281used to limit the access or legal rights of the compilation's users 282beyond what the individual works permit. Inclusion of a covered work 283in an aggregate does not cause this License to apply to the other 284parts of the aggregate. 285 286 6. Conveying Non-Source Forms. 287 288 You may convey a covered work in object code form under the terms 289of sections 4 and 5, provided that you also convey the 290machine-readable Corresponding Source under the terms of this License, 291in one of these ways: 292 293 a) Convey the object code in, or embodied in, a physical product 294 (including a physical distribution medium), accompanied by the 295 Corresponding Source fixed on a durable physical medium 296 customarily used for software interchange. 297 298 b) Convey the object code in, or embodied in, a physical product 299 (including a physical distribution medium), accompanied by a 300 written offer, valid for at least three years and valid for as 301 long as you offer spare parts or customer support for that product 302 model, to give anyone who possesses the object code either (1) a 303 copy of the Corresponding Source for all the software in the 304 product that is covered by this License, on a durable physical 305 medium customarily used for software interchange, for a price no 306 more than your reasonable cost of physically performing this 307 conveying of source, or (2) access to copy the 308 Corresponding Source from a network server at no charge. 309 310 c) Convey individual copies of the object code with a copy of the 311 written offer to provide the Corresponding Source. This 312 alternative is allowed only occasionally and noncommercially, and 313 only if you received the object code with such an offer, in accord 314 with subsection 6b. 315 316 d) Convey the object code by offering access from a designated 317 place (gratis or for a charge), and offer equivalent access to the 318 Corresponding Source in the same way through the same place at no 319 further charge. You need not require recipients to copy the 320 Corresponding Source along with the object code. If the place to 321 copy the object code is a network server, the Corresponding Source 322 may be on a different server (operated by you or a third party) 323 that supports equivalent copying facilities, provided you maintain 324 clear directions next to the object code saying where to find the 325 Corresponding Source. Regardless of what server hosts the 326 Corresponding Source, you remain obligated to ensure that it is 327 available for as long as needed to satisfy these requirements. 328 329 e) Convey the object code using peer-to-peer transmission, provided 330 you inform other peers where the object code and Corresponding 331 Source of the work are being offered to the general public at no 332 charge under subsection 6d. 333 334 A separable portion of the object code, whose source code is excluded 335from the Corresponding Source as a System Library, need not be 336included in conveying the object code work. 337 338 A "User Product" is either (1) a "consumer product", which means any 339tangible personal property which is normally used for personal, family, 340or household purposes, or (2) anything designed or sold for incorporation 341into a dwelling. In determining whether a product is a consumer product, 342doubtful cases shall be resolved in favor of coverage. For a particular 343product received by a particular user, "normally used" refers to a 344typical or common use of that class of product, regardless of the status 345of the particular user or of the way in which the particular user 346actually uses, or expects or is expected to use, the product. A product 347is a consumer product regardless of whether the product has substantial 348commercial, industrial or non-consumer uses, unless such uses represent 349the only significant mode of use of the product. 350 351 "Installation Information" for a User Product means any methods, 352procedures, authorization keys, or other information required to install 353and execute modified versions of a covered work in that User Product from 354a modified version of its Corresponding Source. The information must 355suffice to ensure that the continued functioning of the modified object 356code is in no case prevented or interfered with solely because 357modification has been made. 358 359 If you convey an object code work under this section in, or with, or 360specifically for use in, a User Product, and the conveying occurs as 361part of a transaction in which the right of possession and use of the 362User Product is transferred to the recipient in perpetuity or for a 363fixed term (regardless of how the transaction is characterized), the 364Corresponding Source conveyed under this section must be accompanied 365by the Installation Information. But this requirement does not apply 366if neither you nor any third party retains the ability to install 367modified object code on the User Product (for example, the work has 368been installed in ROM). 369 370 The requirement to provide Installation Information does not include a 371requirement to continue to provide support service, warranty, or updates 372for a work that has been modified or installed by the recipient, or for 373the User Product in which it has been modified or installed. Access to a 374network may be denied when the modification itself materially and 375adversely affects the operation of the network or violates the rules and 376protocols for communication across the network. 377 378 Corresponding Source conveyed, and Installation Information provided, 379in accord with this section must be in a format that is publicly 380documented (and with an implementation available to the public in 381source code form), and must require no special password or key for 382unpacking, reading or copying. 383 384 7. Additional Terms. 385 386 "Additional permissions" are terms that supplement the terms of this 387License by making exceptions from one or more of its conditions. 388Additional permissions that are applicable to the entire Program shall 389be treated as though they were included in this License, to the extent 390that they are valid under applicable law. If additional permissions 391apply only to part of the Program, that part may be used separately 392under those permissions, but the entire Program remains governed by 393this License without regard to the additional permissions. 394 395 When you convey a copy of a covered work, you may at your option 396remove any additional permissions from that copy, or from any part of 397it. (Additional permissions may be written to require their own 398removal in certain cases when you modify the work.) You may place 399additional permissions on material, added by you to a covered work, 400for which you have or can give appropriate copyright permission. 401 402 Notwithstanding any other provision of this License, for material you 403add to a covered work, you may (if authorized by the copyright holders of 404that material) supplement the terms of this License with terms: 405 406 a) Disclaiming warranty or limiting liability differently from the 407 terms of sections 15 and 16 of this License; or 408 409 b) Requiring preservation of specified reasonable legal notices or 410 author attributions in that material or in the Appropriate Legal 411 Notices displayed by works containing it; or 412 413 c) Prohibiting misrepresentation of the origin of that material, or 414 requiring that modified versions of such material be marked in 415 reasonable ways as different from the original version; or 416 417 d) Limiting the use for publicity purposes of names of licensors or 418 authors of the material; or 419 420 e) Declining to grant rights under trademark law for use of some 421 trade names, trademarks, or service marks; or 422 423 f) Requiring indemnification of licensors and authors of that 424 material by anyone who conveys the material (or modified versions of 425 it) with contractual assumptions of liability to the recipient, for 426 any liability that these contractual assumptions directly impose on 427 those licensors and authors. 428 429 All other non-permissive additional terms are considered "further 430restrictions" within the meaning of section 10. If the Program as you 431received it, or any part of it, contains a notice stating that it is 432governed by this License along with a term that is a further 433restriction, you may remove that term. If a license document contains 434a further restriction but permits relicensing or conveying under this 435License, you may add to a covered work material governed by the terms 436of that license document, provided that the further restriction does 437not survive such relicensing or conveying. 438 439 If you add terms to a covered work in accord with this section, you 440must place, in the relevant source files, a statement of the 441additional terms that apply to those files, or a notice indicating 442where to find the applicable terms. 443 444 Additional terms, permissive or non-permissive, may be stated in the 445form of a separately written license, or stated as exceptions; 446the above requirements apply either way. 447 448 8. Termination. 449 450 You may not propagate or modify a covered work except as expressly 451provided under this License. Any attempt otherwise to propagate or 452modify it is void, and will automatically terminate your rights under 453this License (including any patent licenses granted under the third 454paragraph of section 11). 455 456 However, if you cease all violation of this License, then your 457license from a particular copyright holder is reinstated (a) 458provisionally, unless and until the copyright holder explicitly and 459finally terminates your license, and (b) permanently, if the copyright 460holder fails to notify you of the violation by some reasonable means 461prior to 60 days after the cessation. 462 463 Moreover, your license from a particular copyright holder is 464reinstated permanently if the copyright holder notifies you of the 465violation by some reasonable means, this is the first time you have 466received notice of violation of this License (for any work) from that 467copyright holder, and you cure the violation prior to 30 days after 468your receipt of the notice. 469 470 Termination of your rights under this section does not terminate the 471licenses of parties who have received copies or rights from you under 472this License. If your rights have been terminated and not permanently 473reinstated, you do not qualify to receive new licenses for the same 474material under section 10. 475 476 9. Acceptance Not Required for Having Copies. 477 478 You are not required to accept this License in order to receive or 479run a copy of the Program. Ancillary propagation of a covered work 480occurring solely as a consequence of using peer-to-peer transmission 481to receive a copy likewise does not require acceptance. However, 482nothing other than this License grants you permission to propagate or 483modify any covered work. These actions infringe copyright if you do 484not accept this License. Therefore, by modifying or propagating a 485covered work, you indicate your acceptance of this License to do so. 486 487 10. Automatic Licensing of Downstream Recipients. 488 489 Each time you convey a covered work, the recipient automatically 490receives a license from the original licensors, to run, modify and 491propagate that work, subject to this License. You are not responsible 492for enforcing compliance by third parties with this License. 493 494 An "entity transaction" is a transaction transferring control of an 495organization, or substantially all assets of one, or subdividing an 496organization, or merging organizations. If propagation of a covered 497work results from an entity transaction, each party to that 498transaction who receives a copy of the work also receives whatever 499licenses to the work the party's predecessor in interest had or could 500give under the previous paragraph, plus a right to possession of the 501Corresponding Source of the work from the predecessor in interest, if 502the predecessor has it or can get it with reasonable efforts. 503 504 You may not impose any further restrictions on the exercise of the 505rights granted or affirmed under this License. For example, you may 506not impose a license fee, royalty, or other charge for exercise of 507rights granted under this License, and you may not initiate litigation 508(including a cross-claim or counterclaim in a lawsuit) alleging that 509any patent claim is infringed by making, using, selling, offering for 510sale, or importing the Program or any portion of it. 511 512 11. Patents. 513 514 A "contributor" is a copyright holder who authorizes use under this 515License of the Program or a work on which the Program is based. The 516work thus licensed is called the contributor's "contributor version". 517 518 A contributor's "essential patent claims" are all patent claims 519owned or controlled by the contributor, whether already acquired or 520hereafter acquired, that would be infringed by some manner, permitted 521by this License, of making, using, or selling its contributor version, 522but do not include claims that would be infringed only as a 523consequence of further modification of the contributor version. For 524purposes of this definition, "control" includes the right to grant 525patent sublicenses in a manner consistent with the requirements of 526this License. 527 528 Each contributor grants you a non-exclusive, worldwide, royalty-free 529patent license under the contributor's essential patent claims, to 530make, use, sell, offer for sale, import and otherwise run, modify and 531propagate the contents of its contributor version. 532 533 In the following three paragraphs, a "patent license" is any express 534agreement or commitment, however denominated, not to enforce a patent 535(such as an express permission to practice a patent or covenant not to 536sue for patent infringement). To "grant" such a patent license to a 537party means to make such an agreement or commitment not to enforce a 538patent against the party. 539 540 If you convey a covered work, knowingly relying on a patent license, 541and the Corresponding Source of the work is not available for anyone 542to copy, free of charge and under the terms of this License, through a 543publicly available network server or other readily accessible means, 544then you must either (1) cause the Corresponding Source to be so 545available, or (2) arrange to deprive yourself of the benefit of the 546patent license for this particular work, or (3) arrange, in a manner 547consistent with the requirements of this License, to extend the patent 548license to downstream recipients. "Knowingly relying" means you have 549actual knowledge that, but for the patent license, your conveying the 550covered work in a country, or your recipient's use of the covered work 551in a country, would infringe one or more identifiable patents in that 552country that you have reason to believe are valid. 553 554 If, pursuant to or in connection with a single transaction or 555arrangement, you convey, or propagate by procuring conveyance of, a 556covered work, and grant a patent license to some of the parties 557receiving the covered work authorizing them to use, propagate, modify 558or convey a specific copy of the covered work, then the patent license 559you grant is automatically extended to all recipients of the covered 560work and works based on it. 561 562 A patent license is "discriminatory" if it does not include within 563the scope of its coverage, prohibits the exercise of, or is 564conditioned on the non-exercise of one or more of the rights that are 565specifically granted under this License. You may not convey a covered 566work if you are a party to an arrangement with a third party that is 567in the business of distributing software, under which you make payment 568to the third party based on the extent of your activity of conveying 569the work, and under which the third party grants, to any of the 570parties who would receive the covered work from you, a discriminatory 571patent license (a) in connection with copies of the covered work 572conveyed by you (or copies made from those copies), or (b) primarily 573for and in connection with specific products or compilations that 574contain the covered work, unless you entered into that arrangement, 575or that patent license was granted, prior to 28 March 2007. 576 577 Nothing in this License shall be construed as excluding or limiting 578any implied license or other defenses to infringement that may 579otherwise be available to you under applicable patent law. 580 581 12. No Surrender of Others' Freedom. 582 583 If conditions are imposed on you (whether by court order, agreement or 584otherwise) that contradict the conditions of this License, they do not 585excuse you from the conditions of this License. If you cannot convey a 586covered work so as to satisfy simultaneously your obligations under this 587License and any other pertinent obligations, then as a consequence you may 588not convey it at all. For example, if you agree to terms that obligate you 589to collect a royalty for further conveying from those to whom you convey 590the Program, the only way you could satisfy both those terms and this 591License would be to refrain entirely from conveying the Program. 592 593 13. Use with the GNU Affero General Public License. 594 595 Notwithstanding any other provision of this License, you have 596permission to link or combine any covered work with a work licensed 597under version 3 of the GNU Affero General Public License into a single 598combined work, and to convey the resulting work. The terms of this 599License will continue to apply to the part which is the covered work, 600but the special requirements of the GNU Affero General Public License, 601section 13, concerning interaction through a network will apply to the 602combination as such. 603 604 14. Revised Versions of this License. 605 606 The Free Software Foundation may publish revised and/or new versions of 607the GNU General Public License from time to time. Such new versions will 608be similar in spirit to the present version, but may differ in detail to 609address new problems or concerns. 610 611 Each version is given a distinguishing version number. If the 612Program specifies that a certain numbered version of the GNU General 613Public License "or any later version" applies to it, you have the 614option of following the terms and conditions either of that numbered 615version or of any later version published by the Free Software 616Foundation. If the Program does not specify a version number of the 617GNU General Public License, you may choose any version ever published 618by the Free Software Foundation. 619 620 If the Program specifies that a proxy can decide which future 621versions of the GNU General Public License can be used, that proxy's 622public statement of acceptance of a version permanently authorizes you 623to choose that version for the Program. 624 625 Later license versions may give you additional or different 626permissions. However, no additional obligations are imposed on any 627author or copyright holder as a result of your choosing to follow a 628later version. 629 630 15. Disclaimer of Warranty. 631 632 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 633APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 634HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 635OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 636THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 637PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 638IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 639ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 640 641 16. Limitation of Liability. 642 643 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 644WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 645THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 646GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 647USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 648DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 649PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 650EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 651SUCH DAMAGES. 652 653 17. Interpretation of Sections 15 and 16. 654 655 If the disclaimer of warranty and limitation of liability provided 656above cannot be given local legal effect according to their terms, 657reviewing courts shall apply local law that most closely approximates 658an absolute waiver of all civil liability in connection with the 659Program, unless a warranty or assumption of liability accompanies a 660copy of the Program in return for a fee. 661 662