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| 1 | +++ a/LICENSE | ||
| 1 | + GNU GENERAL PUBLIC LICENSE | ||
| 2 | + Version 2, June 1991 | ||
| 3 | + | ||
| 4 | + Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/> | ||
| 5 | + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 6 | + Everyone is permitted to copy and distribute verbatim copies | ||
| 7 | + of this license document, but changing it is not allowed. | ||
| 8 | + | ||
| 9 | + Preamble | ||
| 10 | + | ||
| 11 | + The licenses for most software are designed to take away your | ||
| 12 | +freedom to share and change it. By contrast, the GNU General Public | ||
| 13 | +License is intended to guarantee your freedom to share and change free | ||
| 14 | +software--to make sure the software is free for all its users. This | ||
| 15 | +General Public License applies to most of the Free Software | ||
| 16 | +Foundation's software and to any other program whose authors commit to | ||
| 17 | +using it. (Some other Free Software Foundation software is covered by | ||
| 18 | +the GNU Lesser General Public License instead.) You can apply it to | ||
| 19 | +your programs, too. | ||
| 20 | + | ||
| 21 | + When we speak of free software, we are referring to freedom, not | ||
| 22 | +price. Our General Public Licenses are designed to make sure that you | ||
| 23 | +have the freedom to distribute copies of free software (and charge for | ||
| 24 | +this service if you wish), that you receive source code or can get it | ||
| 25 | +if you want it, that you can change the software or use pieces of it | ||
| 26 | +in new free programs; and that you know you can do these things. | ||
| 27 | + | ||
| 28 | + To protect your rights, we need to make restrictions that forbid | ||
| 29 | +anyone to deny you these rights or to ask you to surrender the rights. | ||
| 30 | +These restrictions translate to certain responsibilities for you if you | ||
| 31 | +distribute copies of the software, or if you modify it. | ||
| 32 | + | ||
| 33 | + For example, if you distribute copies of such a program, whether | ||
| 34 | +gratis or for a fee, you must give the recipients all the rights that | ||
| 35 | +you have. You must make sure that they, too, receive or can get the | ||
| 36 | +source code. And you must show them these terms so they know their | ||
| 37 | +rights. | ||
| 38 | + | ||
| 39 | + We protect your rights with two steps: (1) copyright the software, and | ||
| 40 | +(2) offer you this license which gives you legal permission to copy, | ||
| 41 | +distribute and/or modify the software. | ||
| 42 | + | ||
| 43 | + Also, for each author's protection and ours, we want to make certain | ||
| 44 | +that everyone understands that there is no warranty for this free | ||
| 45 | +software. If the software is modified by someone else and passed on, we | ||
| 46 | +want its recipients to know that what they have is not the original, so | ||
| 47 | +that any problems introduced by others will not reflect on the original | ||
| 48 | +authors' reputations. | ||
| 49 | + | ||
| 50 | + Finally, any free program is threatened constantly by software | ||
| 51 | +patents. We wish to avoid the danger that redistributors of a free | ||
| 52 | +program will individually obtain patent licenses, in effect making the | ||
| 53 | +program proprietary. To prevent this, we have made it clear that any | ||
| 54 | +patent must be licensed for everyone's free use or not licensed at all. | ||
| 55 | + | ||
| 56 | + The precise terms and conditions for copying, distribution and | ||
| 57 | +modification follow. | ||
| 58 | + | ||
| 59 | + GNU GENERAL PUBLIC LICENSE | ||
| 60 | + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | ||
| 61 | + | ||
| 62 | + 0. This License applies to any program or other work which contains | ||
| 63 | +a notice placed by the copyright holder saying it may be distributed | ||
| 64 | +under the terms of this General Public License. The "Program", below, | ||
| 65 | +refers to any such program or work, and a "work based on the Program" | ||
| 66 | +means either the Program or any derivative work under copyright law: | ||
| 67 | +that is to say, a work containing the Program or a portion of it, | ||
| 68 | +either verbatim or with modifications and/or translated into another | ||
| 69 | +language. (Hereinafter, translation is included without limitation in | ||
| 70 | +the term "modification".) Each licensee is addressed as "you". | ||
| 71 | + | ||
| 72 | +Activities other than copying, distribution and modification are not | ||
| 73 | +covered by this License; they are outside its scope. The act of | ||
| 74 | +running the Program is not restricted, and the output from the Program | ||
| 75 | +is covered only if its contents constitute a work based on the | ||
| 76 | +Program (independent of having been made by running the Program). | ||
| 77 | +Whether that is true depends on what the Program does. | ||
| 78 | + | ||
| 79 | + 1. You may copy and distribute verbatim copies of the Program's | ||
| 80 | +source code as you receive it, in any medium, provided that you | ||
| 81 | +conspicuously and appropriately publish on each copy an appropriate | ||
| 82 | +copyright notice and disclaimer of warranty; keep intact all the | ||
| 83 | +notices that refer to this License and to the absence of any warranty; | ||
| 84 | +and give any other recipients of the Program a copy of this License | ||
| 85 | +along with the Program. | ||
| 86 | + | ||
| 87 | +You may charge a fee for the physical act of transferring a copy, and | ||
| 88 | +you may at your option offer warranty protection in exchange for a fee. | ||
| 89 | + | ||
| 90 | + 2. You may modify your copy or copies of the Program or any portion | ||
| 91 | +of it, thus forming a work based on the Program, and copy and | ||
| 92 | +distribute such modifications or work under the terms of Section 1 | ||
| 93 | +above, provided that you also meet all of these conditions: | ||
| 94 | + | ||
| 95 | + a) You must cause the modified files to carry prominent notices | ||
| 96 | + stating that you changed the files and the date of any change. | ||
| 97 | + | ||
| 98 | + b) You must cause any work that you distribute or publish, that in | ||
| 99 | + whole or in part contains or is derived from the Program or any | ||
| 100 | + part thereof, to be licensed as a whole at no charge to all third | ||
| 101 | + parties under the terms of this License. | ||
| 102 | + | ||
| 103 | + c) If the modified program normally reads commands interactively | ||
| 104 | + when run, you must cause it, when started running for such | ||
| 105 | + interactive use in the most ordinary way, to print or display an | ||
| 106 | + announcement including an appropriate copyright notice and a | ||
| 107 | + notice that there is no warranty (or else, saying that you provide | ||
| 108 | + a warranty) and that users may redistribute the program under | ||
| 109 | + these conditions, and telling the user how to view a copy of this | ||
| 110 | + License. (Exception: if the Program itself is interactive but | ||
| 111 | + does not normally print such an announcement, your work based on | ||
| 112 | + the Program is not required to print an announcement.) | ||
| 113 | + | ||
| 114 | +These requirements apply to the modified work as a whole. If | ||
| 115 | +identifiable sections of that work are not derived from the Program, | ||
| 116 | +and can be reasonably considered independent and separate works in | ||
| 117 | +themselves, then this License, and its terms, do not apply to those | ||
| 118 | +sections when you distribute them as separate works. But when you | ||
| 119 | +distribute the same sections as part of a whole which is a work based | ||
| 120 | +on the Program, the distribution of the whole must be on the terms of | ||
| 121 | +this License, whose permissions for other licensees extend to the | ||
| 122 | +entire whole, and thus to each and every part regardless of who wrote it. | ||
| 123 | + | ||
| 124 | +Thus, it is not the intent of this section to claim rights or contest | ||
| 125 | +your rights to work written entirely by you; rather, the intent is to | ||
| 126 | +exercise the right to control the distribution of derivative or | ||
| 127 | +collective works based on the Program. | ||
| 128 | + | ||
| 129 | +In addition, mere aggregation of another work not based on the Program | ||
| 130 | +with the Program (or with a work based on the Program) on a volume of | ||
| 131 | +a storage or distribution medium does not bring the other work under | ||
| 132 | +the scope of this License. | ||
| 133 | + | ||
| 134 | + 3. You may copy and distribute the Program (or a work based on it, | ||
| 135 | +under Section 2) in object code or executable form under the terms of | ||
| 136 | +Sections 1 and 2 above provided that you also do one of the following: | ||
| 137 | + | ||
| 138 | + a) Accompany it with the complete corresponding machine-readable | ||
| 139 | + source code, which must be distributed under the terms of Sections | ||
| 140 | + 1 and 2 above on a medium customarily used for software interchange; or, | ||
| 141 | + | ||
| 142 | + b) Accompany it with a written offer, valid for at least three | ||
| 143 | + years, to give any third party, for a charge no more than your | ||
| 144 | + cost of physically performing source distribution, a complete | ||
| 145 | + machine-readable copy of the corresponding source code, to be | ||
| 146 | + distributed under the terms of Sections 1 and 2 above on a medium | ||
| 147 | + customarily used for software interchange; or, | ||
| 148 | + | ||
| 149 | + c) Accompany it with the information you received as to the offer | ||
| 150 | + to distribute corresponding source code. (This alternative is | ||
| 151 | + allowed only for noncommercial distribution and only if you | ||
| 152 | + received the program in object code or executable form with such | ||
| 153 | + an offer, in accord with Subsection b above.) | ||
| 154 | + | ||
| 155 | +The source code for a work means the preferred form of the work for | ||
| 156 | +making modifications to it. For an executable work, complete source | ||
| 157 | +code means all the source code for all modules it contains, plus any | ||
| 158 | +associated interface definition files, plus the scripts used to | ||
| 159 | +control compilation and installation of the executable. However, as a | ||
| 160 | +special exception, the source code distributed need not include | ||
| 161 | +anything that is normally distributed (in either source or binary | ||
| 162 | +form) with the major components (compiler, kernel, and so on) of the | ||
| 163 | +operating system on which the executable runs, unless that component | ||
| 164 | +itself accompanies the executable. | ||
| 165 | + | ||
| 166 | +If distribution of executable or object code is made by offering | ||
| 167 | +access to copy from a designated place, then offering equivalent | ||
| 168 | +access to copy the source code from the same place counts as | ||
| 169 | +distribution of the source code, even though third parties are not | ||
| 170 | +compelled to copy the source along with the object code. | ||
| 171 | + | ||
| 172 | + 4. You may not copy, modify, sublicense, or distribute the Program | ||
| 173 | +except as expressly provided under this License. Any attempt | ||
| 174 | +otherwise to copy, modify, sublicense or distribute the Program is | ||
| 175 | +void, and will automatically terminate your rights under this License. | ||
| 176 | +However, parties who have received copies, or rights, from you under | ||
| 177 | +this License will not have their licenses terminated so long as such | ||
| 178 | +parties remain in full compliance. | ||
| 179 | + | ||
| 180 | + 5. You are not required to accept this License, since you have not | ||
| 181 | +signed it. However, nothing else grants you permission to modify or | ||
| 182 | +distribute the Program or its derivative works. These actions are | ||
| 183 | +prohibited by law if you do not accept this License. Therefore, by | ||
| 184 | +modifying or distributing the Program (or any work based on the | ||
| 185 | +Program), you indicate your acceptance of this License to do so, and | ||
| 186 | +all its terms and conditions for copying, distributing or modifying | ||
| 187 | +the Program or works based on it. | ||
| 188 | + | ||
| 189 | + 6. Each time you redistribute the Program (or any work based on the | ||
| 190 | +Program), the recipient automatically receives a license from the | ||
| 191 | +original licensor to copy, distribute or modify the Program subject to | ||
| 192 | +these terms and conditions. You may not impose any further | ||
| 193 | +restrictions on the recipients' exercise of the rights granted herein. | ||
| 194 | +You are not responsible for enforcing compliance by third parties to | ||
| 195 | +this License. | ||
| 196 | + | ||
| 197 | + 7. If, as a consequence of a court judgment or allegation of patent | ||
| 198 | +infringement or for any other reason (not limited to patent issues), | ||
| 199 | +conditions are imposed on you (whether by court order, agreement or | ||
| 200 | +otherwise) that contradict the conditions of this License, they do not | ||
| 201 | +excuse you from the conditions of this License. If you cannot | ||
| 202 | +distribute so as to satisfy simultaneously your obligations under this | ||
| 203 | +License and any other pertinent obligations, then as a consequence you | ||
| 204 | +may not distribute the Program at all. For example, if a patent | ||
| 205 | +license would not permit royalty-free redistribution of the Program by | ||
| 206 | +all those who receive copies directly or indirectly through you, then | ||
| 207 | +the only way you could satisfy both it and this License would be to | ||
| 208 | +refrain entirely from distribution of the Program. | ||
| 209 | + | ||
| 210 | +If any portion of this section is held invalid or unenforceable under | ||
| 211 | +any particular circumstance, the balance of the section is intended to | ||
| 212 | +apply and the section as a whole is intended to apply in other | ||
| 213 | +circumstances. | ||
| 214 | + | ||
| 215 | +It is not the purpose of this section to induce you to infringe any | ||
| 216 | +patents or other property right claims or to contest validity of any | ||
| 217 | +such claims; this section has the sole purpose of protecting the | ||
| 218 | +integrity of the free software distribution system, which is | ||
| 219 | +implemented by public license practices. Many people have made | ||
| 220 | +generous contributions to the wide range of software distributed | ||
| 221 | +through that system in reliance on consistent application of that | ||
| 222 | +system; it is up to the author/donor to decide if he or she is willing | ||
| 223 | +to distribute software through any other system and a licensee cannot | ||
| 224 | +impose that choice. | ||
| 225 | + | ||
| 226 | +This section is intended to make thoroughly clear what is believed to | ||
| 227 | +be a consequence of the rest of this License. | ||
| 228 | + | ||
| 229 | + 8. If the distribution and/or use of the Program is restricted in | ||
| 230 | +certain countries either by patents or by copyrighted interfaces, the | ||
| 231 | +original copyright holder who places the Program under this License | ||
| 232 | +may add an explicit geographical distribution limitation excluding | ||
| 233 | +those countries, so that distribution is permitted only in or among | ||
| 234 | +countries not thus excluded. In such case, this License incorporates | ||
| 235 | +the limitation as if written in the body of this License. | ||
| 236 | + | ||
| 237 | + 9. The Free Software Foundation may publish revised and/or new versions | ||
| 238 | +of the General Public License from time to time. Such new versions will | ||
| 239 | +be similar in spirit to the present version, but may differ in detail to | ||
| 240 | +address new problems or concerns. | ||
| 241 | + | ||
| 242 | +Each version is given a distinguishing version number. If the Program | ||
| 243 | +specifies a version number of this License which applies to it and "any | ||
| 244 | +later version", you have the option of following the terms and conditions | ||
| 245 | +either of that version or of any later version published by the Free | ||
| 246 | +Software Foundation. If the Program does not specify a version number of | ||
| 247 | +this License, you may choose any version ever published by the Free Software | ||
| 248 | +Foundation. | ||
| 249 | + | ||
| 250 | + 10. If you wish to incorporate parts of the Program into other free | ||
| 251 | +programs whose distribution conditions are different, write to the author | ||
| 252 | +to ask for permission. For software which is copyrighted by the Free | ||
| 253 | +Software Foundation, write to the Free Software Foundation; we sometimes | ||
| 254 | +make exceptions for this. Our decision will be guided by the two goals | ||
| 255 | +of preserving the free status of all derivatives of our free software and | ||
| 256 | +of promoting the sharing and reuse of software generally. | ||
| 257 | + | ||
| 258 | + NO WARRANTY | ||
| 259 | + | ||
| 260 | + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY | ||
| 261 | +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN | ||
| 262 | +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES | ||
| 263 | +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED | ||
| 264 | +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
| 265 | +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS | ||
| 266 | +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE | ||
| 267 | +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, | ||
| 268 | +REPAIR OR CORRECTION. | ||
| 269 | + | ||
| 270 | + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING | ||
| 271 | +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR | ||
| 272 | +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | ||
| 273 | +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING | ||
| 274 | +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED | ||
| 275 | +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY | ||
| 276 | +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER | ||
| 277 | +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE | ||
| 278 | +POSSIBILITY OF SUCH DAMAGES. | ||
| 279 | + | ||
| 280 | + END OF TERMS AND CONDITIONS | ||
| 281 | + | ||
| 282 | + How to Apply These Terms to Your New Programs | ||
| 283 | + | ||
| 284 | + If you develop a new program, and you want it to be of the greatest | ||
| 285 | +possible use to the public, the best way to achieve this is to make it | ||
| 286 | +free software which everyone can redistribute and change under these terms. | ||
| 287 | + | ||
| 288 | + To do so, attach the following notices to the program. It is safest | ||
| 289 | +to attach them to the start of each source file to most effectively | ||
| 290 | +convey the exclusion of warranty; and each file should have at least | ||
| 291 | +the "copyright" line and a pointer to where the full notice is found. | ||
| 292 | + | ||
| 293 | + {description} | ||
| 294 | + Copyright (C) {year} {fullname} | ||
| 295 | + | ||
| 296 | + This program is free software; you can redistribute it and/or modify | ||
| 297 | + it under the terms of the GNU General Public License as published by | ||
| 298 | + the Free Software Foundation; either version 2 of the License, or | ||
| 299 | + (at your option) any later version. | ||
| 300 | + | ||
| 301 | + This program is distributed in the hope that it will be useful, | ||
| 302 | + but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 303 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 304 | + GNU General Public License for more details. | ||
| 305 | + | ||
| 306 | + You should have received a copy of the GNU General Public License along | ||
| 307 | + with this program; if not, write to the Free Software Foundation, Inc., | ||
| 308 | + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 309 | + | ||
| 310 | +Also add information on how to contact you by electronic and paper mail. | ||
| 311 | + | ||
| 312 | +If the program is interactive, make it output a short notice like this | ||
| 313 | +when it starts in an interactive mode: | ||
| 314 | + | ||
| 315 | + Gnomovision version 69, Copyright (C) year name of author | ||
| 316 | + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. | ||
| 317 | + This is free software, and you are welcome to redistribute it | ||
| 318 | + under certain conditions; type `show c' for details. | ||
| 319 | + | ||
| 320 | +The hypothetical commands `show w' and `show c' should show the appropriate | ||
| 321 | +parts of the General Public License. Of course, the commands you use may | ||
| 322 | +be called something other than `show w' and `show c'; they could even be | ||
| 323 | +mouse-clicks or menu items--whatever suits your program. | ||
| 324 | + | ||
| 325 | +You should also get your employer (if you work as a programmer) or your | ||
| 326 | +school, if any, to sign a "copyright disclaimer" for the program, if | ||
| 327 | +necessary. Here is a sample; alter the names: | ||
| 328 | + | ||
| 329 | + Yoyodyne, Inc., hereby disclaims all copyright interest in the program | ||
| 330 | + `Gnomovision' (which makes passes at compilers) written by James Hacker. | ||
| 331 | + | ||
| 332 | + {signature of Ty Coon}, 1 April 1989 | ||
| 333 | + Ty Coon, President of Vice | ||
| 334 | + | ||
| 335 | +This General Public License does not permit incorporating your program into | ||
| 336 | +proprietary programs. If your program is a subroutine library, you may | ||
| 337 | +consider it more useful to permit linking proprietary applications with the | ||
| 338 | +library. If this is what you want to do, use the GNU Lesser General | ||
| 339 | +Public License instead of this License. | ||
| 340 | + |