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1 |
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2 GNU LESSER GENERAL PUBLIC LICENSE |
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3 Version 2.1, February 1999 |
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4 |
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5 Copyright (C) 1991, 1999 Free Software Foundation, Inc. |
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6 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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7 Everyone is permitted to copy and distribute verbatim copies |
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10 [This is the first released version of the Lesser GPL. It also counts |
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14 Preamble |
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474 have at least the "copyright" line and a pointer to where the full |
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475 notice is found. |
|
476 |
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477 |
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478 <one line to give the library's name and a brief idea of what it does.> |
|
479 Copyright (C) <year> <name of author> |
|
480 |
|
481 This library is free software; you can redistribute it and/or |
|
482 modify it under the terms of the GNU Lesser General Public |
|
483 License as published by the Free Software Foundation; either |
|
484 version 2.1 of the License, or (at your option) any later version. |
|
485 |
|
486 This library is distributed in the hope that it will be useful, |
|
487 but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
488 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
489 Lesser General Public License for more details. |
|
490 |
|
491 You should have received a copy of the GNU Lesser General Public |
|
492 License along with this library; if not, write to the Free Software |
|
493 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|
494 |
|
495 Also add information on how to contact you by electronic and paper mail. |
|
496 |
|
497 You should also get your employer (if you work as a programmer) or |
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498 your school, if any, to sign a "copyright disclaimer" for the library, |
|
499 if necessary. Here is a sample; alter the names: |
|
500 |
|
501 Yoyodyne, Inc., hereby disclaims all copyright interest in the |
|
502 library `Frob' (a library for tweaking knobs) written by James |
|
503 Random Hacker. |
|
504 |
|
505 <signature of Ty Coon>, 1 April 1990 |
|
506 Ty Coon, President of Vice |
|
507 |
|
508 That's all there is to it! |
|
509 |
|
510 --------------------------------------------------------------------------- |
|
511 |
|
512 GNU Free Documentation License |
|
513 Version 1.2, November 2002 |
|
514 |
|
515 |
|
516 Copyright (C) 2000,2001,2002 Free Software Foundation, Inc. |
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517 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|
518 Everyone is permitted to copy and distribute verbatim copies |
|
519 of this license document, but changing it is not allowed. |
|
520 |
|
521 |
|
522 0. PREAMBLE |
|
523 |
|
524 The purpose of this License is to make a manual, textbook, or other |
|
525 functional and useful document "free" in the sense of freedom: to |
|
526 assure everyone the effective freedom to copy and redistribute it, |
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527 with or without modifying it, either commercially or noncommercially. |
|
528 Secondarily, this License preserves for the author and publisher a way |
|
529 to get credit for their work, while not being considered responsible |
|
530 for modifications made by others. |
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531 |
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532 This License is a kind of "copyleft", which means that derivative |
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533 works of the document must themselves be free in the same sense. It |
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534 complements the GNU General Public License, which is a copyleft |
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535 license designed for free software. |
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536 |
|
537 We have designed this License in order to use it for manuals for free |
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538 software, because free software needs free documentation: a free |
|
539 program should come with manuals providing the same freedoms that the |
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540 software does. But this License is not limited to software manuals; |
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541 it can be used for any textual work, regardless of subject matter or |
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542 whether it is published as a printed book. We recommend this License |
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543 principally for works whose purpose is instruction or reference. |
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544 |
|
545 |
|
546 1. APPLICABILITY AND DEFINITIONS |
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547 |
|
548 This License applies to any manual or other work, in any medium, that |
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549 contains a notice placed by the copyright holder saying it can be |
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550 distributed under the terms of this License. Such a notice grants a |
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551 world-wide, royalty-free license, unlimited in duration, to use that |
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552 work under the conditions stated herein. The "Document", below, |
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553 refers to any such manual or work. Any member of the public is a |
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554 licensee, and is addressed as "you". You accept the license if you |
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555 copy, modify or distribute the work in a way requiring permission |
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556 under copyright law. |
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557 |
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558 A "Modified Version" of the Document means any work containing the |
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559 Document or a portion of it, either copied verbatim, or with |
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560 modifications and/or translated into another language. |
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561 |
|
562 A "Secondary Section" is a named appendix or a front-matter section of |
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563 the Document that deals exclusively with the relationship of the |
|
564 publishers or authors of the Document to the Document's overall subject |
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565 (or to related matters) and contains nothing that could fall directly |
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566 within that overall subject. (Thus, if the Document is in part a |
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567 textbook of mathematics, a Secondary Section may not explain any |
|
568 mathematics.) The relationship could be a matter of historical |
|
569 connection with the subject or with related matters, or of legal, |
|
570 commercial, philosophical, ethical or political position regarding |
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571 them. |
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572 |
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573 The "Invariant Sections" are certain Secondary Sections whose titles |
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574 are designated, as being those of Invariant Sections, in the notice |
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575 that says that the Document is released under this License. If a |
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576 section does not fit the above definition of Secondary then it is not |
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577 allowed to be designated as Invariant. The Document may contain zero |
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578 Invariant Sections. If the Document does not identify any Invariant |
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579 Sections then there are none. |
|
580 |
|
581 The "Cover Texts" are certain short passages of text that are listed, |
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582 as Front-Cover Texts or Back-Cover Texts, in the notice that says that |
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583 the Document is released under this License. A Front-Cover Text may |
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584 be at most 5 words, and a Back-Cover Text may be at most 25 words. |
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585 |
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586 A "Transparent" copy of the Document means a machine-readable copy, |
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587 represented in a format whose specification is available to the |
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588 general public, that is suitable for revising the document |
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589 straightforwardly with generic text editors or (for images composed of |
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590 pixels) generic paint programs or (for drawings) some widely available |
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591 drawing editor, and that is suitable for input to text formatters or |
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592 for automatic translation to a variety of formats suitable for input |
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593 to text formatters. A copy made in an otherwise Transparent file |
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594 format whose markup, or absence of markup, has been arranged to thwart |
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595 or discourage subsequent modification by readers is not Transparent. |
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596 An image format is not Transparent if used for any substantial amount |
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597 of text. A copy that is not "Transparent" is called "Opaque". |
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598 |
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599 Examples of suitable formats for Transparent copies include plain |
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600 ASCII without markup, Texinfo input format, LaTeX input format, SGML |
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601 or XML using a publicly available DTD, and standard-conforming simple |
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602 HTML, PostScript or PDF designed for human modification. Examples of |
|
603 transparent image formats include PNG, XCF and JPG. Opaque formats |
|
604 include proprietary formats that can be read and edited only by |
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605 proprietary word processors, SGML or XML for which the DTD and/or |
|
606 processing tools are not generally available, and the |
|
607 machine-generated HTML, PostScript or PDF produced by some word |
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608 processors for output purposes only. |
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609 |
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610 The "Title Page" means, for a printed book, the title page itself, |
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611 plus such following pages as are needed to hold, legibly, the material |
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612 this License requires to appear in the title page. For works in |
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613 formats which do not have any title page as such, "Title Page" means |
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614 the text near the most prominent appearance of the work's title, |
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615 preceding the beginning of the body of the text. |
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616 |
|
617 A section "Entitled XYZ" means a named subunit of the Document whose |
|
618 title either is precisely XYZ or contains XYZ in parentheses following |
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619 text that translates XYZ in another language. (Here XYZ stands for a |
|
620 specific section name mentioned below, such as "Acknowledgements", |
|
621 "Dedications", "Endorsements", or "History".) To "Preserve the Title" |
|
622 of such a section when you modify the Document means that it remains a |
|
623 section "Entitled XYZ" according to this definition. |
|
624 |
|
625 The Document may include Warranty Disclaimers next to the notice which |
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626 states that this License applies to the Document. These Warranty |
|
627 Disclaimers are considered to be included by reference in this |
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628 License, but only as regards disclaiming warranties: any other |
|
629 implication that these Warranty Disclaimers may have is void and has |
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630 no effect on the meaning of this License. |
|
631 |
|
632 |
|
633 2. VERBATIM COPYING |
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634 |
|
635 You may copy and distribute the Document in any medium, either |
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636 commercially or noncommercially, provided that this License, the |
|
637 copyright notices, and the license notice saying this License applies |
|
638 to the Document are reproduced in all copies, and that you add no other |
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639 conditions whatsoever to those of this License. You may not use |
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640 technical measures to obstruct or control the reading or further |
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641 copying of the copies you make or distribute. However, you may accept |
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642 compensation in exchange for copies. If you distribute a large enough |
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643 number of copies you must also follow the conditions in section 3. |
|
644 |
|
645 You may also lend copies, under the same conditions stated above, and |
|
646 you may publicly display copies. |
|
647 |
|
648 |
|
649 3. COPYING IN QUANTITY |
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650 |
|
651 If you publish printed copies (or copies in media that commonly have |
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652 printed covers) of the Document, numbering more than 100, and the |
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653 Document's license notice requires Cover Texts, you must enclose the |
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654 copies in covers that carry, clearly and legibly, all these Cover |
|
655 Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on |
|
656 the back cover. Both covers must also clearly and legibly identify |
|
657 you as the publisher of these copies. The front cover must present |
|
658 the full title with all words of the title equally prominent and |
|
659 visible. You may add other material on the covers in addition. |
|
660 Copying with changes limited to the covers, as long as they preserve |
|
661 the title of the Document and satisfy these conditions, can be treated |
|
662 as verbatim copying in other respects. |
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663 |
|
664 If the required texts for either cover are too voluminous to fit |
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665 legibly, you should put the first ones listed (as many as fit |
|
666 reasonably) on the actual cover, and continue the rest onto adjacent |
|
667 pages. |
|
668 |
|
669 If you publish or distribute Opaque copies of the Document numbering |
|
670 more than 100, you must either include a machine-readable Transparent |
|
671 copy along with each Opaque copy, or state in or with each Opaque copy |
|
672 a computer-network location from which the general network-using |
|
673 public has access to download using public-standard network protocols |
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674 a complete Transparent copy of the Document, free of added material. |
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675 If you use the latter option, you must take reasonably prudent steps, |
|
676 when you begin distribution of Opaque copies in quantity, to ensure |
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677 that this Transparent copy will remain thus accessible at the stated |
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678 location until at least one year after the last time you distribute an |
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679 Opaque copy (directly or through your agents or retailers) of that |
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680 edition to the public. |
|
681 |
|
682 It is requested, but not required, that you contact the authors of the |
|
683 Document well before redistributing any large number of copies, to give |
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684 them a chance to provide you with an updated version of the Document. |
|
685 |
|
686 |
|
687 4. MODIFICATIONS |
|
688 |
|
689 You may copy and distribute a Modified Version of the Document under |
|
690 the conditions of sections 2 and 3 above, provided that you release |
|
691 the Modified Version under precisely this License, with the Modified |
|
692 Version filling the role of the Document, thus licensing distribution |
|
693 and modification of the Modified Version to whoever possesses a copy |
|
694 of it. In addition, you must do these things in the Modified Version: |
|
695 |
|
696 A. Use in the Title Page (and on the covers, if any) a title distinct |
|
697 from that of the Document, and from those of previous versions |
|
698 (which should, if there were any, be listed in the History section |
|
699 of the Document). You may use the same title as a previous version |
|
700 if the original publisher of that version gives permission. |
|
701 B. List on the Title Page, as authors, one or more persons or entities |
|
702 responsible for authorship of the modifications in the Modified |
|
703 Version, together with at least five of the principal authors of the |
|
704 Document (all of its principal authors, if it has fewer than five), |
|
705 unless they release you from this requirement. |
|
706 C. State on the Title page the name of the publisher of the |
|
707 Modified Version, as the publisher. |
|
708 D. Preserve all the copyright notices of the Document. |
|
709 E. Add an appropriate copyright notice for your modifications |
|
710 adjacent to the other copyright notices. |
|
711 F. Include, immediately after the copyright notices, a license notice |
|
712 giving the public permission to use the Modified Version under the |
|
713 terms of this License, in the form shown in the Addendum below. |
|
714 G. Preserve in that license notice the full lists of Invariant Sections |
|
715 and required Cover Texts given in the Document's license notice. |
|
716 H. Include an unaltered copy of this License. |
|
717 I. Preserve the section Entitled "History", Preserve its Title, and add |
|
718 to it an item stating at least the title, year, new authors, and |
|
719 publisher of the Modified Version as given on the Title Page. If |
|
720 there is no section Entitled "History" in the Document, create one |
|
721 stating the title, year, authors, and publisher of the Document as |
|
722 given on its Title Page, then add an item describing the Modified |
|
723 Version as stated in the previous sentence. |
|
724 J. Preserve the network location, if any, given in the Document for |
|
725 public access to a Transparent copy of the Document, and likewise |
|
726 the network locations given in the Document for previous versions |
|
727 it was based on. These may be placed in the "History" section. |
|
728 You may omit a network location for a work that was published at |
|
729 least four years before the Document itself, or if the original |
|
730 publisher of the version it refers to gives permission. |
|
731 K. For any section Entitled "Acknowledgements" or "Dedications", |
|
732 Preserve the Title of the section, and preserve in the section all |
|
733 the substance and tone of each of the contributor acknowledgements |
|
734 and/or dedications given therein. |
|
735 L. Preserve all the Invariant Sections of the Document, |
|
736 unaltered in their text and in their titles. Section numbers |
|
737 or the equivalent are not considered part of the section titles. |
|
738 M. Delete any section Entitled "Endorsements". Such a section |
|
739 may not be included in the Modified Version. |
|
740 N. Do not retitle any existing section to be Entitled "Endorsements" |
|
741 or to conflict in title with any Invariant Section. |
|
742 O. Preserve any Warranty Disclaimers. |
|
743 |
|
744 If the Modified Version includes new front-matter sections or |
|
745 appendices that qualify as Secondary Sections and contain no material |
|
746 copied from the Document, you may at your option designate some or all |
|
747 of these sections as invariant. To do this, add their titles to the |
|
748 list of Invariant Sections in the Modified Version's license notice. |
|
749 These titles must be distinct from any other section titles. |
|
750 |
|
751 You may add a section Entitled "Endorsements", provided it contains |
|
752 nothing but endorsements of your Modified Version by various |
|
753 parties--for example, statements of peer review or that the text has |
|
754 been approved by an organization as the authoritative definition of a |
|
755 standard. |
|
756 |
|
757 You may add a passage of up to five words as a Front-Cover Text, and a |
|
758 passage of up to 25 words as a Back-Cover Text, to the end of the list |
|
759 of Cover Texts in the Modified Version. Only one passage of |
|
760 Front-Cover Text and one of Back-Cover Text may be added by (or |
|
761 through arrangements made by) any one entity. If the Document already |
|
762 includes a cover text for the same cover, previously added by you or |
|
763 by arrangement made by the same entity you are acting on behalf of, |
|
764 you may not add another; but you may replace the old one, on explicit |
|
765 permission from the previous publisher that added the old one. |
|
766 |
|
767 The author(s) and publisher(s) of the Document do not by this License |
|
768 give permission to use their names for publicity for or to assert or |
|
769 imply endorsement of any Modified Version. |
|
770 |
|
771 |
|
772 5. COMBINING DOCUMENTS |
|
773 |
|
774 You may combine the Document with other documents released under this |
|
775 License, under the terms defined in section 4 above for modified |
|
776 versions, provided that you include in the combination all of the |
|
777 Invariant Sections of all of the original documents, unmodified, and |
|
778 list them all as Invariant Sections of your combined work in its |
|
779 license notice, and that you preserve all their Warranty Disclaimers. |
|
780 |
|
781 The combined work need only contain one copy of this License, and |
|
782 multiple identical Invariant Sections may be replaced with a single |
|
783 copy. If there are multiple Invariant Sections with the same name but |
|
784 different contents, make the title of each such section unique by |
|
785 adding at the end of it, in parentheses, the name of the original |
|
786 author or publisher of that section if known, or else a unique number. |
|
787 Make the same adjustment to the section titles in the list of |
|
788 Invariant Sections in the license notice of the combined work. |
|
789 |
|
790 In the combination, you must combine any sections Entitled "History" |
|
791 in the various original documents, forming one section Entitled |
|
792 "History"; likewise combine any sections Entitled "Acknowledgements", |
|
793 and any sections Entitled "Dedications". You must delete all sections |
|
794 Entitled "Endorsements". |
|
795 |
|
796 |
|
797 6. COLLECTIONS OF DOCUMENTS |
|
798 |
|
799 You may make a collection consisting of the Document and other documents |
|
800 released under this License, and replace the individual copies of this |
|
801 License in the various documents with a single copy that is included in |
|
802 the collection, provided that you follow the rules of this License for |
|
803 verbatim copying of each of the documents in all other respects. |
|
804 |
|
805 You may extract a single document from such a collection, and distribute |
|
806 it individually under this License, provided you insert a copy of this |
|
807 License into the extracted document, and follow this License in all |
|
808 other respects regarding verbatim copying of that document. |
|
809 |
|
810 |
|
811 7. AGGREGATION WITH INDEPENDENT WORKS |
|
812 |
|
813 A compilation of the Document or its derivatives with other separate |
|
814 and independent documents or works, in or on a volume of a storage or |
|
815 distribution medium, is called an "aggregate" if the copyright |
|
816 resulting from the compilation is not used to limit the legal rights |
|
817 of the compilation's users beyond what the individual works permit. |
|
818 When the Document is included in an aggregate, this License does not |
|
819 apply to the other works in the aggregate which are not themselves |
|
820 derivative works of the Document. |
|
821 |
|
822 If the Cover Text requirement of section 3 is applicable to these |
|
823 copies of the Document, then if the Document is less than one half of |
|
824 the entire aggregate, the Document's Cover Texts may be placed on |
|
825 covers that bracket the Document within the aggregate, or the |
|
826 electronic equivalent of covers if the Document is in electronic form. |
|
827 Otherwise they must appear on printed covers that bracket the whole |
|
828 aggregate. |
|
829 |
|
830 |
|
831 8. TRANSLATION |
|
832 |
|
833 Translation is considered a kind of modification, so you may |
|
834 distribute translations of the Document under the terms of section 4. |
|
835 Replacing Invariant Sections with translations requires special |
|
836 permission from their copyright holders, but you may include |
|
837 translations of some or all Invariant Sections in addition to the |
|
838 original versions of these Invariant Sections. You may include a |
|
839 translation of this License, and all the license notices in the |
|
840 Document, and any Warranty Disclaimers, provided that you also include |
|
841 the original English version of this License and the original versions |
|
842 of those notices and disclaimers. In case of a disagreement between |
|
843 the translation and the original version of this License or a notice |
|
844 or disclaimer, the original version will prevail. |
|
845 |
|
846 If a section in the Document is Entitled "Acknowledgements", |
|
847 "Dedications", or "History", the requirement (section 4) to Preserve |
|
848 its Title (section 1) will typically require changing the actual |
|
849 title. |
|
850 |
|
851 |
|
852 9. TERMINATION |
|
853 |
|
854 You may not copy, modify, sublicense, or distribute the Document except |
|
855 as expressly provided for under this License. Any other attempt to |
|
856 copy, modify, sublicense or distribute the Document is void, and will |
|
857 automatically terminate your rights under this License. However, |
|
858 parties who have received copies, or rights, from you under this |
|
859 License will not have their licenses terminated so long as such |
|
860 parties remain in full compliance. |
|
861 |
|
862 |
|
863 10. FUTURE REVISIONS OF THIS LICENSE |
|
864 |
|
865 The Free Software Foundation may publish new, revised versions |
|
866 of the GNU Free Documentation License from time to time. Such new |
|
867 versions will be similar in spirit to the present version, but may |
|
868 differ in detail to address new problems or concerns. See |
|
869 http://www.gnu.org/copyleft/. |
|
870 |
|
871 Each version of the License is given a distinguishing version number. |
|
872 If the Document specifies that a particular numbered version of this |
|
873 License "or any later version" applies to it, you have the option of |
|
874 following the terms and conditions either of that specified version or |
|
875 of any later version that has been published (not as a draft) by the |
|
876 Free Software Foundation. If the Document does not specify a version |
|
877 number of this License, you may choose any version ever published (not |
|
878 as a draft) by the Free Software Foundation. |
|
879 |
|
880 |
|
881 ADDENDUM: How to use this License for your documents |
|
882 |
|
883 To use this License in a document you have written, include a copy of |
|
884 the License in the document and put the following copyright and |
|
885 license notices just after the title page: |
|
886 |
|
887 Copyright (c) YEAR YOUR NAME. |
|
888 Permission is granted to copy, distribute and/or modify this document |
|
889 under the terms of the GNU Free Documentation License, Version 1.2 |
|
890 or any later version published by the Free Software Foundation; |
|
891 with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. |
|
892 A copy of the license is included in the section entitled "GNU |
|
893 Free Documentation License". |
|
894 |
|
895 If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, |
|
896 replace the "with...Texts." line with this: |
|
897 |
|
898 with the Invariant Sections being LIST THEIR TITLES, with the |
|
899 Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. |
|
900 |
|
901 If you have Invariant Sections without Cover Texts, or some other |
|
902 combination of the three, merge those two alternatives to suit the |
|
903 situation. |
|
904 |
|
905 If your document contains nontrivial examples of program code, we |
|
906 recommend releasing these examples in parallel under your choice of |
|
907 free software license, such as the GNU General Public License, |
|
908 to permit their use in free software. |