Mercurial > octave-nkf
annotate doc/liboctave/gpl.texi @ 20595:c1a6c31ac29a
eliminate more simple uses of error_state
* ov-classdef.cc: Eliminate simple uses of error_state.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 06 Oct 2015 00:20:02 -0400 |
| parents | 4197fc428c7d |
| children |
| rev | line source |
|---|---|
|
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1 @c Copyright (C) 1996-2015 John W. Eaton |
| 7018 | 2 @c |
| 3 @c This file is part of Octave. | |
| 4 @c | |
| 5 @c Octave is free software; you can redistribute it and/or modify it | |
| 6 @c under the terms of the GNU General Public License as published by the | |
| 7 @c Free Software Foundation; either version 3 of the License, or (at | |
| 8 @c your option) any later version. | |
|
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9 @c |
| 7018 | 10 @c Octave is distributed in the hope that it will be useful, but WITHOUT |
| 11 @c ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 @c FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 @c for more details. | |
|
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14 @c |
| 7018 | 15 @c You should have received a copy of the GNU General Public License |
| 16 @c along with Octave; see the file COPYING. If not, see | |
| 17 @c <http://www.gnu.org/licenses/>. | |
| 2333 | 18 |
| 19 @cindex warranty | |
| 20 @cindex copyright | |
| 21 @node Copying, Introduction, Acknowledgements, Top | |
| 22 @unnumbered GNU GENERAL PUBLIC LICENSE | |
| 7016 | 23 @center Version 3, 29 June 2007 |
| 2333 | 24 |
| 25 @display | |
| 7016 | 26 Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/} |
| 2333 | 27 |
| 7016 | 28 Everyone is permitted to copy and distribute verbatim copies of this |
| 29 license document, but changing it is not allowed. | |
| 2333 | 30 @end display |
| 31 | |
| 7016 | 32 @heading Preamble |
| 33 | |
| 34 The GNU General Public License is a free, copyleft license for | |
| 35 software and other kinds of works. | |
| 2333 | 36 |
| 7016 | 37 The licenses for most software and other practical works are designed |
| 38 to take away your freedom to share and change the works. By contrast, | |
| 39 the GNU General Public License is intended to guarantee your freedom | |
| 40 to share and change all versions of a program---to make sure it remains | |
| 41 free software for all its users. We, the Free Software Foundation, | |
| 42 use the GNU General Public License for most of our software; it | |
| 43 applies also to any other work released this way by its authors. You | |
| 44 can apply it to your programs, too. | |
| 2333 | 45 |
| 7016 | 46 When we speak of free software, we are referring to freedom, not |
| 2333 | 47 price. Our General Public Licenses are designed to make sure that you |
| 48 have the freedom to distribute copies of free software (and charge for | |
| 7016 | 49 them if you wish), that you receive source code or can get it if you |
| 50 want it, that you can change the software or use pieces of it in new | |
| 51 free programs, and that you know you can do these things. | |
| 52 | |
| 53 To protect your rights, we need to prevent others from denying you | |
| 54 these rights or asking you to surrender the rights. Therefore, you | |
| 55 have certain responsibilities if you distribute copies of the | |
| 56 software, or if you modify it: responsibilities to respect the freedom | |
| 57 of others. | |
| 2333 | 58 |
| 7016 | 59 For example, if you distribute copies of such a program, whether |
| 60 gratis or for a fee, you must pass on to the recipients the same | |
| 61 freedoms that you received. You must make sure that they, too, | |
| 62 receive or can get the source code. And you must show them these | |
| 63 terms so they know their rights. | |
| 2333 | 64 |
| 7016 | 65 Developers that use the GNU GPL protect your rights with two steps: |
| 66 (1) assert copyright on the software, and (2) offer you this License | |
| 67 giving you legal permission to copy, distribute and/or modify it. | |
| 2333 | 68 |
| 7016 | 69 For the developers' and authors' protection, the GPL clearly explains |
| 70 that there is no warranty for this free software. For both users' and | |
| 71 authors' sake, the GPL requires that modified versions be marked as | |
| 72 changed, so that their problems will not be attributed erroneously to | |
| 73 authors of previous versions. | |
| 2333 | 74 |
| 7016 | 75 Some devices are designed to deny users access to install or run |
| 76 modified versions of the software inside them, although the | |
| 77 manufacturer can do so. This is fundamentally incompatible with the | |
| 78 aim of protecting users' freedom to change the software. The | |
| 79 systematic pattern of such abuse occurs in the area of products for | |
| 80 individuals to use, which is precisely where it is most unacceptable. | |
| 81 Therefore, we have designed this version of the GPL to prohibit the | |
| 82 practice for those products. If such problems arise substantially in | |
| 83 other domains, we stand ready to extend this provision to those | |
| 84 domains in future versions of the GPL, as needed to protect the | |
| 85 freedom of users. | |
| 2333 | 86 |
| 7016 | 87 Finally, every program is threatened constantly by software patents. |
| 88 States should not allow patents to restrict development and use of | |
| 89 software on general-purpose computers, but in those that do, we wish | |
| 90 to avoid the special danger that patents applied to a free program | |
| 91 could make it effectively proprietary. To prevent this, the GPL | |
| 92 assures that patents cannot be used to render the program non-free. | |
| 2333 | 93 |
| 7016 | 94 The precise terms and conditions for copying, distribution and |
| 2333 | 95 modification follow. |
| 96 | |
| 7016 | 97 @heading TERMS AND CONDITIONS |
| 2333 | 98 |
| 99 @enumerate 0 | |
| 7016 | 100 @item Definitions. |
| 101 | |
| 102 ``This License'' refers to version 3 of the GNU General Public License. | |
| 103 | |
| 104 ``Copyright'' also means copyright-like laws that apply to other kinds | |
| 105 of works, such as semiconductor masks. | |
| 106 | |
| 107 ``The Program'' refers to any copyrightable work licensed under this | |
| 108 License. Each licensee is addressed as ``you''. ``Licensees'' and | |
| 109 ``recipients'' may be individuals or organizations. | |
| 110 | |
| 111 To ``modify'' a work means to copy from or adapt all or part of the work | |
| 112 in a fashion requiring copyright permission, other than the making of | |
| 113 an exact copy. The resulting work is called a ``modified version'' of | |
| 114 the earlier work or a work ``based on'' the earlier work. | |
| 115 | |
| 116 A ``covered work'' means either the unmodified Program or a work based | |
| 117 on the Program. | |
| 118 | |
| 119 To ``propagate'' a work means to do anything with it that, without | |
| 120 permission, would make you directly or secondarily liable for | |
| 121 infringement under applicable copyright law, except executing it on a | |
| 122 computer or modifying a private copy. Propagation includes copying, | |
| 123 distribution (with or without modification), making available to the | |
| 124 public, and in some countries other activities as well. | |
| 125 | |
| 126 To ``convey'' a work means any kind of propagation that enables other | |
| 127 parties to make or receive copies. Mere interaction with a user | |
| 128 through a computer network, with no transfer of a copy, is not | |
| 129 conveying. | |
| 2333 | 130 |
| 7016 | 131 An interactive user interface displays ``Appropriate Legal Notices'' to |
| 132 the extent that it includes a convenient and prominently visible | |
| 133 feature that (1) displays an appropriate copyright notice, and (2) | |
| 134 tells the user that there is no warranty for the work (except to the | |
| 135 extent that warranties are provided), that licensees may convey the | |
| 136 work under this License, and how to view a copy of this License. If | |
| 137 the interface presents a list of user commands or options, such as a | |
| 138 menu, a prominent item in the list meets this criterion. | |
| 139 | |
| 140 @item Source Code. | |
| 141 | |
| 142 The ``source code'' for a work means the preferred form of the work for | |
| 143 making modifications to it. ``Object code'' means any non-source form | |
| 144 of a work. | |
| 145 | |
| 146 A ``Standard Interface'' means an interface that either is an official | |
| 147 standard defined by a recognized standards body, or, in the case of | |
| 148 interfaces specified for a particular programming language, one that | |
| 149 is widely used among developers working in that language. | |
| 150 | |
| 151 The ``System Libraries'' of an executable work include anything, other | |
| 152 than the work as a whole, that (a) is included in the normal form of | |
| 153 packaging a Major Component, but which is not part of that Major | |
| 154 Component, and (b) serves only to enable use of the work with that | |
| 155 Major Component, or to implement a Standard Interface for which an | |
| 156 implementation is available to the public in source code form. A | |
| 157 ``Major Component'', in this context, means a major essential component | |
| 158 (kernel, window system, and so on) of the specific operating system | |
| 159 (if any) on which the executable work runs, or a compiler used to | |
| 160 produce the work, or an object code interpreter used to run it. | |
| 2333 | 161 |
| 7016 | 162 The ``Corresponding Source'' for a work in object code form means all |
| 163 the source code needed to generate, install, and (for an executable | |
| 164 work) run the object code and to modify the work, including scripts to | |
| 165 control those activities. However, it does not include the work's | |
| 166 System Libraries, or general-purpose tools or generally available free | |
| 167 programs which are used unmodified in performing those activities but | |
| 168 which are not part of the work. For example, Corresponding Source | |
| 169 includes interface definition files associated with source files for | |
| 170 the work, and the source code for shared libraries and dynamically | |
| 171 linked subprograms that the work is specifically designed to require, | |
| 172 such as by intimate data communication or control flow between those | |
| 173 subprograms and other parts of the work. | |
| 174 | |
| 175 The Corresponding Source need not include anything that users can | |
| 176 regenerate automatically from other parts of the Corresponding Source. | |
| 177 | |
| 178 The Corresponding Source for a work in source code form is that same | |
| 179 work. | |
| 180 | |
| 181 @item Basic Permissions. | |
| 182 | |
| 183 All rights granted under this License are granted for the term of | |
| 184 copyright on the Program, and are irrevocable provided the stated | |
| 185 conditions are met. This License explicitly affirms your unlimited | |
| 186 permission to run the unmodified Program. The output from running a | |
| 187 covered work is covered by this License only if the output, given its | |
| 188 content, constitutes a covered work. This License acknowledges your | |
| 189 rights of fair use or other equivalent, as provided by copyright law. | |
| 190 | |
| 191 You may make, run and propagate covered works that you do not convey, | |
| 192 without conditions so long as your license otherwise remains in force. | |
| 193 You may convey covered works to others for the sole purpose of having | |
| 194 them make modifications exclusively for you, or provide you with | |
| 195 facilities for running those works, provided that you comply with the | |
| 196 terms of this License in conveying all material for which you do not | |
| 197 control copyright. Those thus making or running the covered works for | |
| 198 you must do so exclusively on your behalf, under your direction and | |
| 199 control, on terms that prohibit them from making any copies of your | |
| 200 copyrighted material outside their relationship with you. | |
| 2333 | 201 |
| 7016 | 202 Conveying under any other circumstances is permitted solely under the |
| 203 conditions stated below. Sublicensing is not allowed; section 10 | |
| 204 makes it unnecessary. | |
| 205 | |
| 206 @item Protecting Users' Legal Rights From Anti-Circumvention Law. | |
| 207 | |
| 208 No covered work shall be deemed part of an effective technological | |
| 209 measure under any applicable law fulfilling obligations under article | |
| 210 11 of the WIPO copyright treaty adopted on 20 December 1996, or | |
| 211 similar laws prohibiting or restricting circumvention of such | |
| 212 measures. | |
| 213 | |
| 214 When you convey a covered work, you waive any legal power to forbid | |
| 215 circumvention of technological measures to the extent such | |
| 216 circumvention is effected by exercising rights under this License with | |
| 217 respect to the covered work, and you disclaim any intention to limit | |
| 218 operation or modification of the work as a means of enforcing, against | |
| 219 the work's users, your or third parties' legal rights to forbid | |
| 220 circumvention of technological measures. | |
| 2333 | 221 |
| 7016 | 222 @item Conveying Verbatim Copies. |
| 223 | |
| 224 You may convey verbatim copies of the Program's source code as you | |
| 225 receive it, in any medium, provided that you conspicuously and | |
| 226 appropriately publish on each copy an appropriate copyright notice; | |
| 227 keep intact all notices stating that this License and any | |
| 228 non-permissive terms added in accord with section 7 apply to the code; | |
| 229 keep intact all notices of the absence of any warranty; and give all | |
| 230 recipients a copy of this License along with the Program. | |
| 231 | |
| 232 You may charge any price or no price for each copy that you convey, | |
| 233 and you may offer support or warranty protection for a fee. | |
| 234 | |
| 235 @item Conveying Modified Source Versions. | |
| 236 | |
| 237 You may convey a work based on the Program, or the modifications to | |
| 238 produce it from the Program, in the form of source code under the | |
| 239 terms of section 4, provided that you also meet all of these | |
| 240 conditions: | |
| 2333 | 241 |
| 242 @enumerate a | |
|
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243 @item |
| 7016 | 244 The work must carry prominent notices stating that you modified it, |
| 245 and giving a relevant date. | |
| 2333 | 246 |
| 247 @item | |
| 7016 | 248 The work must carry prominent notices stating that it is released |
| 249 under this License and any conditions added under section 7. This | |
| 250 requirement modifies the requirement in section 4 to ``keep intact all | |
| 251 notices''. | |
| 2333 | 252 |
| 253 @item | |
| 7016 | 254 You must license the entire work, as a whole, under this License to |
| 255 anyone who comes into possession of a copy. This License will | |
| 256 therefore apply, along with any applicable section 7 additional terms, | |
| 257 to the whole of the work, and all its parts, regardless of how they | |
| 258 are packaged. This License gives no permission to license the work in | |
| 259 any other way, but it does not invalidate such permission if you have | |
| 260 separately received it. | |
| 261 | |
| 262 @item | |
| 263 If the work has interactive user interfaces, each must display | |
| 264 Appropriate Legal Notices; however, if the Program has interactive | |
| 265 interfaces that do not display Appropriate Legal Notices, your work | |
| 266 need not make them do so. | |
| 2333 | 267 @end enumerate |
| 268 | |
| 7016 | 269 A compilation of a covered work with other separate and independent |
| 270 works, which are not by their nature extensions of the covered work, | |
| 271 and which are not combined with it such as to form a larger program, | |
| 272 in or on a volume of a storage or distribution medium, is called an | |
| 273 ``aggregate'' if the compilation and its resulting copyright are not | |
| 274 used to limit the access or legal rights of the compilation's users | |
| 275 beyond what the individual works permit. Inclusion of a covered work | |
| 276 in an aggregate does not cause this License to apply to the other | |
| 277 parts of the aggregate. | |
| 2333 | 278 |
| 7016 | 279 @item Conveying Non-Source Forms. |
| 2333 | 280 |
| 7016 | 281 You may convey a covered work in object code form under the terms of |
| 282 sections 4 and 5, provided that you also convey the machine-readable | |
| 283 Corresponding Source under the terms of this License, in one of these | |
| 284 ways: | |
| 2333 | 285 |
| 286 @enumerate a | |
| 287 @item | |
| 7016 | 288 Convey the object code in, or embodied in, a physical product |
| 289 (including a physical distribution medium), accompanied by the | |
| 290 Corresponding Source fixed on a durable physical medium customarily | |
| 291 used for software interchange. | |
| 292 | |
| 293 @item | |
| 294 Convey the object code in, or embodied in, a physical product | |
| 295 (including a physical distribution medium), accompanied by a written | |
| 296 offer, valid for at least three years and valid for as long as you | |
| 297 offer spare parts or customer support for that product model, to give | |
| 298 anyone who possesses the object code either (1) a copy of the | |
| 299 Corresponding Source for all the software in the product that is | |
| 300 covered by this License, on a durable physical medium customarily used | |
| 301 for software interchange, for a price no more than your reasonable | |
| 302 cost of physically performing this conveying of source, or (2) access | |
| 303 to copy the Corresponding Source from a network server at no charge. | |
| 2333 | 304 |
| 305 @item | |
| 7016 | 306 Convey individual copies of the object code with a copy of the written |
| 307 offer to provide the Corresponding Source. This alternative is | |
| 308 allowed only occasionally and noncommercially, and only if you | |
| 309 received the object code with such an offer, in accord with subsection | |
| 310 6b. | |
| 2333 | 311 |
| 312 @item | |
| 7016 | 313 Convey the object code by offering access from a designated place |
| 314 (gratis or for a charge), and offer equivalent access to the | |
| 315 Corresponding Source in the same way through the same place at no | |
| 316 further charge. You need not require recipients to copy the | |
| 317 Corresponding Source along with the object code. If the place to copy | |
| 318 the object code is a network server, the Corresponding Source may be | |
| 319 on a different server (operated by you or a third party) that supports | |
| 320 equivalent copying facilities, provided you maintain clear directions | |
| 321 next to the object code saying where to find the Corresponding Source. | |
| 322 Regardless of what server hosts the Corresponding Source, you remain | |
| 323 obligated to ensure that it is available for as long as needed to | |
| 324 satisfy these requirements. | |
| 325 | |
| 326 @item | |
| 327 Convey the object code using peer-to-peer transmission, provided you | |
| 328 inform other peers where the object code and Corresponding Source of | |
| 329 the work are being offered to the general public at no charge under | |
| 330 subsection 6d. | |
| 331 | |
| 2333 | 332 @end enumerate |
| 333 | |
| 7016 | 334 A separable portion of the object code, whose source code is excluded |
| 335 from the Corresponding Source as a System Library, need not be | |
| 336 included in conveying the object code work. | |
| 337 | |
| 338 A ``User Product'' is either (1) a ``consumer product'', which means any | |
| 339 tangible personal property which is normally used for personal, | |
| 340 family, or household purposes, or (2) anything designed or sold for | |
| 341 incorporation into a dwelling. In determining whether a product is a | |
| 342 consumer product, doubtful cases shall be resolved in favor of | |
| 343 coverage. For a particular product received by a particular user, | |
| 344 ``normally used'' refers to a typical or common use of that class of | |
| 345 product, regardless of the status of the particular user or of the way | |
| 346 in which the particular user actually uses, or expects or is expected | |
| 347 to use, the product. A product is a consumer product regardless of | |
| 348 whether the product has substantial commercial, industrial or | |
| 349 non-consumer uses, unless such uses represent the only significant | |
| 350 mode of use of the product. | |
| 351 | |
| 352 ``Installation Information'' for a User Product means any methods, | |
| 353 procedures, authorization keys, or other information required to | |
| 354 install and execute modified versions of a covered work in that User | |
| 355 Product from a modified version of its Corresponding Source. The | |
| 356 information must suffice to ensure that the continued functioning of | |
| 357 the modified object code is in no case prevented or interfered with | |
| 358 solely because modification has been made. | |
| 359 | |
| 360 If you convey an object code work under this section in, or with, or | |
| 361 specifically for use in, a User Product, and the conveying occurs as | |
| 362 part of a transaction in which the right of possession and use of the | |
| 363 User Product is transferred to the recipient in perpetuity or for a | |
| 364 fixed term (regardless of how the transaction is characterized), the | |
| 365 Corresponding Source conveyed under this section must be accompanied | |
| 366 by the Installation Information. But this requirement does not apply | |
| 367 if neither you nor any third party retains the ability to install | |
| 368 modified object code on the User Product (for example, the work has | |
| 369 been installed in ROM). | |
| 2333 | 370 |
| 7016 | 371 The requirement to provide Installation Information does not include a |
| 372 requirement to continue to provide support service, warranty, or | |
| 373 updates for a work that has been modified or installed by the | |
| 374 recipient, or for the User Product in which it has been modified or | |
| 375 installed. Access to a network may be denied when the modification | |
| 376 itself materially and adversely affects the operation of the network | |
| 377 or violates the rules and protocols for communication across the | |
| 378 network. | |
| 379 | |
| 380 Corresponding Source conveyed, and Installation Information provided, | |
| 381 in accord with this section must be in a format that is publicly | |
| 382 documented (and with an implementation available to the public in | |
| 383 source code form), and must require no special password or key for | |
| 384 unpacking, reading or copying. | |
| 385 | |
| 386 @item Additional Terms. | |
| 387 | |
| 388 ``Additional permissions'' are terms that supplement the terms of this | |
| 389 License by making exceptions from one or more of its conditions. | |
| 390 Additional permissions that are applicable to the entire Program shall | |
| 391 be treated as though they were included in this License, to the extent | |
| 392 that they are valid under applicable law. If additional permissions | |
| 393 apply only to part of the Program, that part may be used separately | |
| 394 under those permissions, but the entire Program remains governed by | |
| 395 this License without regard to the additional permissions. | |
| 396 | |
| 397 When you convey a copy of a covered work, you may at your option | |
| 398 remove any additional permissions from that copy, or from any part of | |
| 399 it. (Additional permissions may be written to require their own | |
| 400 removal in certain cases when you modify the work.) You may place | |
| 401 additional permissions on material, added by you to a covered work, | |
| 402 for which you have or can give appropriate copyright permission. | |
| 403 | |
| 404 Notwithstanding any other provision of this License, for material you | |
| 405 add to a covered work, you may (if authorized by the copyright holders | |
| 406 of that material) supplement the terms of this License with terms: | |
| 407 | |
| 408 @enumerate a | |
| 409 @item | |
| 410 Disclaiming warranty or limiting liability differently from the terms | |
| 411 of sections 15 and 16 of this License; or | |
| 2333 | 412 |
| 413 @item | |
| 7016 | 414 Requiring preservation of specified reasonable legal notices or author |
| 415 attributions in that material or in the Appropriate Legal Notices | |
| 416 displayed by works containing it; or | |
| 2333 | 417 |
| 418 @item | |
| 7016 | 419 Prohibiting misrepresentation of the origin of that material, or |
| 420 requiring that modified versions of such material be marked in | |
| 421 reasonable ways as different from the original version; or | |
| 2333 | 422 |
| 423 @item | |
| 7016 | 424 Limiting the use for publicity purposes of names of licensors or |
| 425 authors of the material; or | |
| 426 | |
| 427 @item | |
| 428 Declining to grant rights under trademark law for use of some trade | |
| 429 names, trademarks, or service marks; or | |
| 2333 | 430 |
| 431 @item | |
| 7016 | 432 Requiring indemnification of licensors and authors of that material by |
| 433 anyone who conveys the material (or modified versions of it) with | |
| 434 contractual assumptions of liability to the recipient, for any | |
| 435 liability that these contractual assumptions directly impose on those | |
| 436 licensors and authors. | |
| 437 @end enumerate | |
| 438 | |
| 439 All other non-permissive additional terms are considered ``further | |
| 440 restrictions'' within the meaning of section 10. If the Program as you | |
| 441 received it, or any part of it, contains a notice stating that it is | |
| 442 governed by this License along with a term that is a further | |
| 443 restriction, you may remove that term. If a license document contains | |
| 444 a further restriction but permits relicensing or conveying under this | |
| 445 License, you may add to a covered work material governed by the terms | |
| 446 of that license document, provided that the further restriction does | |
| 447 not survive such relicensing or conveying. | |
| 448 | |
| 449 If you add terms to a covered work in accord with this section, you | |
| 450 must place, in the relevant source files, a statement of the | |
| 451 additional terms that apply to those files, or a notice indicating | |
| 452 where to find the applicable terms. | |
| 453 | |
| 454 Additional terms, permissive or non-permissive, may be stated in the | |
| 455 form of a separately written license, or stated as exceptions; the | |
| 456 above requirements apply either way. | |
| 457 | |
| 458 @item Termination. | |
| 459 | |
| 460 You may not propagate or modify a covered work except as expressly | |
| 461 provided under this License. Any attempt otherwise to propagate or | |
| 462 modify it is void, and will automatically terminate your rights under | |
| 463 this License (including any patent licenses granted under the third | |
| 464 paragraph of section 11). | |
| 465 | |
| 466 However, if you cease all violation of this License, then your license | |
| 467 from a particular copyright holder is reinstated (a) provisionally, | |
| 468 unless and until the copyright holder explicitly and finally | |
| 469 terminates your license, and (b) permanently, if the copyright holder | |
| 470 fails to notify you of the violation by some reasonable means prior to | |
| 471 60 days after the cessation. | |
| 2333 | 472 |
| 7016 | 473 Moreover, your license from a particular copyright holder is |
| 474 reinstated permanently if the copyright holder notifies you of the | |
| 475 violation by some reasonable means, this is the first time you have | |
| 476 received notice of violation of this License (for any work) from that | |
| 477 copyright holder, and you cure the violation prior to 30 days after | |
| 478 your receipt of the notice. | |
| 479 | |
| 480 Termination of your rights under this section does not terminate the | |
| 481 licenses of parties who have received copies or rights from you under | |
| 482 this License. If your rights have been terminated and not permanently | |
| 483 reinstated, you do not qualify to receive new licenses for the same | |
| 484 material under section 10. | |
| 485 | |
| 486 @item Acceptance Not Required for Having Copies. | |
| 487 | |
| 488 You are not required to accept this License in order to receive or run | |
| 489 a copy of the Program. Ancillary propagation of a covered work | |
| 490 occurring solely as a consequence of using peer-to-peer transmission | |
| 491 to receive a copy likewise does not require acceptance. However, | |
| 492 nothing other than this License grants you permission to propagate or | |
| 493 modify any covered work. These actions infringe copyright if you do | |
| 494 not accept this License. Therefore, by modifying or propagating a | |
| 495 covered work, you indicate your acceptance of this License to do so. | |
| 496 | |
| 497 @item Automatic Licensing of Downstream Recipients. | |
| 498 | |
| 499 Each time you convey a covered work, the recipient automatically | |
| 500 receives a license from the original licensors, to run, modify and | |
| 501 propagate that work, subject to this License. You are not responsible | |
| 502 for enforcing compliance by third parties with this License. | |
| 503 | |
| 504 An ``entity transaction'' is a transaction transferring control of an | |
| 505 organization, or substantially all assets of one, or subdividing an | |
| 506 organization, or merging organizations. If propagation of a covered | |
| 507 work results from an entity transaction, each party to that | |
| 508 transaction who receives a copy of the work also receives whatever | |
| 509 licenses to the work the party's predecessor in interest had or could | |
| 510 give under the previous paragraph, plus a right to possession of the | |
| 511 Corresponding Source of the work from the predecessor in interest, if | |
| 512 the predecessor has it or can get it with reasonable efforts. | |
| 513 | |
| 514 You may not impose any further restrictions on the exercise of the | |
| 515 rights granted or affirmed under this License. For example, you may | |
| 516 not impose a license fee, royalty, or other charge for exercise of | |
| 517 rights granted under this License, and you may not initiate litigation | |
| 518 (including a cross-claim or counterclaim in a lawsuit) alleging that | |
| 519 any patent claim is infringed by making, using, selling, offering for | |
| 520 sale, or importing the Program or any portion of it. | |
| 521 | |
| 522 @item Patents. | |
| 2333 | 523 |
| 7016 | 524 A ``contributor'' is a copyright holder who authorizes use under this |
| 525 License of the Program or a work on which the Program is based. The | |
| 526 work thus licensed is called the contributor's ``contributor version''. | |
| 527 | |
| 528 A contributor's ``essential patent claims'' are all patent claims owned | |
| 529 or controlled by the contributor, whether already acquired or | |
| 530 hereafter acquired, that would be infringed by some manner, permitted | |
| 531 by this License, of making, using, or selling its contributor version, | |
| 532 but do not include claims that would be infringed only as a | |
| 533 consequence of further modification of the contributor version. For | |
| 534 purposes of this definition, ``control'' includes the right to grant | |
| 535 patent sublicenses in a manner consistent with the requirements of | |
| 536 this License. | |
| 537 | |
| 538 Each contributor grants you a non-exclusive, worldwide, royalty-free | |
| 539 patent license under the contributor's essential patent claims, to | |
| 540 make, use, sell, offer for sale, import and otherwise run, modify and | |
| 541 propagate the contents of its contributor version. | |
| 2333 | 542 |
| 7016 | 543 In the following three paragraphs, a ``patent license'' is any express |
| 544 agreement or commitment, however denominated, not to enforce a patent | |
| 545 (such as an express permission to practice a patent or covenant not to | |
| 546 sue for patent infringement). To ``grant'' such a patent license to a | |
| 547 party means to make such an agreement or commitment not to enforce a | |
| 548 patent against the party. | |
| 549 | |
| 550 If you convey a covered work, knowingly relying on a patent license, | |
| 551 and the Corresponding Source of the work is not available for anyone | |
| 552 to copy, free of charge and under the terms of this License, through a | |
| 553 publicly available network server or other readily accessible means, | |
| 554 then you must either (1) cause the Corresponding Source to be so | |
| 555 available, or (2) arrange to deprive yourself of the benefit of the | |
| 556 patent license for this particular work, or (3) arrange, in a manner | |
| 557 consistent with the requirements of this License, to extend the patent | |
| 558 license to downstream recipients. ``Knowingly relying'' means you have | |
| 559 actual knowledge that, but for the patent license, your conveying the | |
| 560 covered work in a country, or your recipient's use of the covered work | |
| 561 in a country, would infringe one or more identifiable patents in that | |
| 562 country that you have reason to believe are valid. | |
| 563 | |
| 564 If, pursuant to or in connection with a single transaction or | |
| 565 arrangement, you convey, or propagate by procuring conveyance of, a | |
| 566 covered work, and grant a patent license to some of the parties | |
| 567 receiving the covered work authorizing them to use, propagate, modify | |
| 568 or convey a specific copy of the covered work, then the patent license | |
| 569 you grant is automatically extended to all recipients of the covered | |
| 570 work and works based on it. | |
| 2333 | 571 |
| 7016 | 572 A patent license is ``discriminatory'' if it does not include within the |
| 573 scope of its coverage, prohibits the exercise of, or is conditioned on | |
| 574 the non-exercise of one or more of the rights that are specifically | |
| 575 granted under this License. You may not convey a covered work if you | |
| 576 are a party to an arrangement with a third party that is in the | |
| 577 business of distributing software, under which you make payment to the | |
| 578 third party based on the extent of your activity of conveying the | |
| 579 work, and under which the third party grants, to any of the parties | |
| 580 who would receive the covered work from you, a discriminatory patent | |
| 581 license (a) in connection with copies of the covered work conveyed by | |
| 582 you (or copies made from those copies), or (b) primarily for and in | |
| 583 connection with specific products or compilations that contain the | |
| 584 covered work, unless you entered into that arrangement, or that patent | |
| 585 license was granted, prior to 28 March 2007. | |
| 586 | |
| 587 Nothing in this License shall be construed as excluding or limiting | |
| 588 any implied license or other defenses to infringement that may | |
| 589 otherwise be available to you under applicable patent law. | |
| 590 | |
| 591 @item No Surrender of Others' Freedom. | |
| 2333 | 592 |
| 7016 | 593 If conditions are imposed on you (whether by court order, agreement or |
| 594 otherwise) that contradict the conditions of this License, they do not | |
| 595 excuse you from the conditions of this License. If you cannot convey | |
| 596 a covered work so as to satisfy simultaneously your obligations under | |
| 597 this License and any other pertinent obligations, then as a | |
| 598 consequence you may not convey it at all. For example, if you agree | |
| 599 to terms that obligate you to collect a royalty for further conveying | |
| 600 from those to whom you convey the Program, the only way you could | |
| 601 satisfy both those terms and this License would be to refrain entirely | |
| 602 from conveying the Program. | |
| 603 | |
| 604 @item Use with the GNU Affero General Public License. | |
| 605 | |
| 606 Notwithstanding any other provision of this License, you have | |
| 607 permission to link or combine any covered work with a work licensed | |
| 608 under version 3 of the GNU Affero General Public License into a single | |
| 609 combined work, and to convey the resulting work. The terms of this | |
| 610 License will continue to apply to the part which is the covered work, | |
| 611 but the special requirements of the GNU Affero General Public License, | |
| 612 section 13, concerning interaction through a network will apply to the | |
| 613 combination as such. | |
| 614 | |
| 615 @item Revised Versions of this License. | |
| 616 | |
| 2333 | 617 The Free Software Foundation may publish revised and/or new versions |
| 7016 | 618 of the GNU General Public License from time to time. Such new |
| 619 versions will be similar in spirit to the present version, but may | |
| 620 differ in detail to address new problems or concerns. | |
| 2333 | 621 |
| 622 Each version is given a distinguishing version number. If the Program | |
| 7016 | 623 specifies that a certain numbered version of the GNU General Public |
| 624 License ``or any later version'' applies to it, you have the option of | |
| 625 following the terms and conditions either of that numbered version or | |
| 626 of any later version published by the Free Software Foundation. If | |
| 627 the Program does not specify a version number of the GNU General | |
| 628 Public License, you may choose any version ever published by the Free | |
| 629 Software Foundation. | |
| 2333 | 630 |
| 7016 | 631 If the Program specifies that a proxy can decide which future versions |
| 632 of the GNU General Public License can be used, that proxy's public | |
| 633 statement of acceptance of a version permanently authorizes you to | |
| 634 choose that version for the Program. | |
| 635 | |
| 636 Later license versions may give you additional or different | |
| 637 permissions. However, no additional obligations are imposed on any | |
| 638 author or copyright holder as a result of your choosing to follow a | |
| 639 later version. | |
| 640 | |
| 641 @item Disclaimer of Warranty. | |
| 2333 | 642 |
| 7016 | 643 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY |
| 644 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT | |
| 645 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT | |
| 646 WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT | |
| 647 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 648 A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND | |
| 649 PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE | |
| 650 DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR | |
| 651 CORRECTION. | |
| 652 | |
| 653 @item Limitation of Liability. | |
| 2333 | 654 |
| 7016 | 655 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING |
| 656 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR | |
| 657 CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | |
| 658 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES | |
| 659 ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT | |
| 660 NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR | |
| 661 LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM | |
| 662 TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER | |
| 663 PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| 2333 | 664 |
| 7016 | 665 @item Interpretation of Sections 15 and 16. |
| 666 | |
| 667 If the disclaimer of warranty and limitation of liability provided | |
| 668 above cannot be given local legal effect according to their terms, | |
| 669 reviewing courts shall apply local law that most closely approximates | |
| 670 an absolute waiver of all civil liability in connection with the | |
| 671 Program, unless a warranty or assumption of liability accompanies a | |
| 672 copy of the Program in return for a fee. | |
| 673 | |
| 2333 | 674 @end enumerate |
| 675 | |
| 676 @heading END OF TERMS AND CONDITIONS | |
| 7016 | 677 |
| 678 @heading How to Apply These Terms to Your New Programs | |
| 2333 | 679 |
| 7016 | 680 If you develop a new program, and you want it to be of the greatest |
| 2333 | 681 possible use to the public, the best way to achieve this is to make it |
| 7016 | 682 free software which everyone can redistribute and change under these |
| 683 terms. | |
| 2333 | 684 |
| 7016 | 685 To do so, attach the following notices to the program. It is safest |
| 2333 | 686 to attach them to the start of each source file to most effectively |
| 7016 | 687 state the exclusion of warranty; and each file should have at least |
| 2333 | 688 the ``copyright'' line and a pointer to where the full notice is found. |
| 689 | |
| 690 @smallexample | |
|
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691 @var{one line to give the program's name and a brief idea of what it does.} |
| 7016 | 692 Copyright (C) @var{year} @var{name of author} |
| 2333 | 693 |
| 7016 | 694 This program is free software: you can redistribute it and/or modify |
| 2333 | 695 it under the terms of the GNU General Public License as published by |
| 7016 | 696 the Free Software Foundation, either version 3 of the License, or (at |
| 697 your option) any later version. | |
| 2333 | 698 |
| 7016 | 699 This program is distributed in the hope that it will be useful, but |
| 700 WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 701 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 702 General Public License for more details. | |
| 2333 | 703 |
| 704 You should have received a copy of the GNU General Public License | |
| 7016 | 705 along with this program. If not, see @url{http://www.gnu.org/licenses/}. |
| 2333 | 706 @end smallexample |
| 707 | |
| 708 Also add information on how to contact you by electronic and paper mail. | |
| 709 | |
| 7016 | 710 If the program does terminal interaction, make it output a short |
| 711 notice like this when it starts in an interactive mode: | |
| 2333 | 712 |
| 713 @smallexample | |
|
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714 @var{program} Copyright (C) @var{year} @var{name of author} |
| 7016 | 715 This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}. |
| 2333 | 716 This is free software, and you are welcome to redistribute it |
| 7016 | 717 under certain conditions; type @samp{show c} for details. |
| 2333 | 718 @end smallexample |
| 719 | |
| 720 The hypothetical commands @samp{show w} and @samp{show c} should show | |
| 7016 | 721 the appropriate parts of the General Public License. Of course, your |
| 722 program's commands might be different; for a GUI interface, you would | |
| 723 use an ``about box''. | |
| 2333 | 724 |
| 7016 | 725 You should also get your employer (if you work as a programmer) or school, |
| 726 if any, to sign a ``copyright disclaimer'' for the program, if necessary. | |
| 727 For more information on this, and how to apply and follow the GNU GPL, see | |
| 728 @url{http://www.gnu.org/licenses/}. | |
| 2333 | 729 |
| 7016 | 730 The GNU General Public License does not permit incorporating your |
| 731 program into proprietary programs. If your program is a subroutine | |
| 732 library, you may consider it more useful to permit linking proprietary | |
| 733 applications with the library. If this is what you want to do, use | |
| 734 the GNU Lesser General Public License instead of this License. But | |
| 735 first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}. |