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GNU General Public License
==========================
_Version 3, 29 June 2007_
_Copyright © 2007 Free Software Foundation, Inc. &lt;<http://fsf.org/>&gt;_
Everyone is permitted to copy and distribute verbatim copies of this license
document, but changing it is not allowed.
## Preamble
The GNU General Public License is a free, copyleft license for software and other
kinds of works.
The licenses for most software and other practical works are designed to take away
your freedom to share and change the works. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change all versions of a
program--to make sure it remains free software for all its users. We, the Free
Software Foundation, use the GNU General Public License for most of our software; it
applies also to any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not price. Our General
Public Licenses are designed to make sure that you have the freedom to distribute
copies of free software (and charge for them if you wish), that you receive source
code or can get it if you want it, that you can change the software or use pieces of
it in new free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you these rights or
asking you to surrender the rights. Therefore, you have certain responsibilities if
you distribute copies of the software, or if you modify it: responsibilities to
respect the freedom of others.
For example, if you distribute copies of such a program, whether gratis or for a fee,
you must pass on to the recipients the same freedoms that you received. You must make
sure that they, too, receive or can get the source code. And you must show them these
terms so they know their rights.
Developers that use the GNU GPL protect your rights with two steps: **(1)** assert
copyright on the software, and **(2)** offer you this License giving you legal permission
to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains that there is
no warranty for this free software. For both users' and authors' sake, the GPL
requires that modified versions be marked as changed, so that their problems will not
be attributed erroneously to authors of previous versions.
Some devices are designed to deny users access to install or run modified versions of
the software inside them, although the manufacturer can do so. This is fundamentally
incompatible with the aim of protecting users' freedom to change the software. The
systematic pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we have designed
this version of the GPL to prohibit the practice for those products. If such problems
arise substantially in other domains, we stand ready to extend this provision to
those domains in future versions of the GPL, as needed to protect the freedom of
users.
Finally, every program is threatened constantly by software patents. States should
not allow patents to restrict development and use of software on general-purpose
computers, but in those that do, we wish to avoid the special danger that patents
applied to a free program could make it effectively proprietary. To prevent this, the
GPL assures that patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and modification follow.
## TERMS AND CONDITIONS
### 0. Definitions
“This License” refers to version 3 of the GNU General Public License.
“Copyright” also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
“The Program” refers to any copyrightable work licensed under this
License. Each licensee is addressed as “you”. “Licensees” and
“recipients” may be individuals or organizations.
To “modify” a work means to copy from or adapt all or part of the work in
a fashion requiring copyright permission, other than the making of an exact copy. The
resulting work is called a “modified version” of the earlier work or a
work “based on” the earlier work.
A “covered work” means either the unmodified Program or a work based on
the Program.
To “propagate” a work means to do anything with it that, without
permission, would make you directly or secondarily liable for infringement under
applicable copyright law, except executing it on a computer or modifying a private
copy. Propagation includes copying, distribution (with or without modification),
making available to the public, and in some countries other activities as well.
To “convey” a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through a computer
network, with no transfer of a copy, is not conveying.
An interactive user interface displays “Appropriate Legal Notices” to the
extent that it includes a convenient and prominently visible feature that **(1)**
displays an appropriate copyright notice, and **(2)** tells the user that there is no
warranty for the work (except to the extent that warranties are provided), that
licensees may convey the work under this License, and how to view a copy of this
License. If the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
### 1. Source Code
The “source code” for a work means the preferred form of the work for
making modifications to it. “Object code” means any non-source form of a
work.
A “Standard Interface” means an interface that either is an official
standard defined by a recognized standards body, or, in the case of interfaces
specified for a particular programming language, one that is widely used among
developers working in that language.
The “System Libraries” of an executable work include anything, other than
the work as a whole, that **(a)** is included in the normal form of packaging a Major
Component, but which is not part of that Major Component, and **(b)** serves only to
enable use of the work with that Major Component, or to implement a Standard
Interface for which an implementation is available to the public in source code form.
A “Major Component”, in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system (if any) on which
the executable work runs, or a compiler used to produce the work, or an object code
interpreter used to run it.
The “Corresponding Source” for a work in object code form means all the
source code needed to generate, install, and (for an executable work) run the object
code and to modify the work, including scripts to control those activities. However,
it does not include the work's System Libraries, or general-purpose tools or
generally available free programs which are used unmodified in performing those
activities but which are not part of the work. For example, Corresponding Source
includes interface definition files associated with source files for the work, and
the source code for shared libraries and dynamically linked subprograms that the work
is specifically designed to require, such as by intimate data communication or
control flow between those subprograms and other parts of the work.
The Corresponding Source need not include anything that users can regenerate
automatically from other parts of the Corresponding Source.
The Corresponding Source for a work in source code form is that same work.
### 2. Basic Permissions
All rights granted under this License are granted for the term of copyright on the
Program, and are irrevocable provided the stated conditions are met. This License
explicitly affirms your unlimited permission to run the unmodified Program. The
output from running a covered work is covered by this License only if the output,
given its content, constitutes a covered work. This License acknowledges your rights
of fair use or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not convey, without
conditions so long as your license otherwise remains in force. You may convey covered
works to others for the sole purpose of having them make modifications exclusively
for you, or provide you with facilities for running those works, provided that you
comply with the terms of this License in conveying all material for which you do not
control copyright. Those thus making or running the covered works for you must do so
exclusively on your behalf, under your direction and control, on terms that prohibit
them from making any copies of your copyrighted material outside their relationship
with you.
Conveying under any other circumstances is permitted solely under the conditions
stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
### 3. Protecting Users' Legal Rights From Anti-Circumvention Law
No covered work shall be deemed part of an effective technological measure under any
applicable law fulfilling obligations under article 11 of the WIPO copyright treaty
adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention
of such measures.
When you convey a covered work, you waive any legal power to forbid circumvention of
technological measures to the extent such circumvention is effected by exercising
rights under this License with respect to the covered work, and you disclaim any
intention to limit operation or modification of the work as a means of enforcing,
against the work's users, your or third parties' legal rights to forbid circumvention
of technological measures.
### 4. Conveying Verbatim Copies
You may convey verbatim copies of the Program's source code as you receive it, in any
medium, provided that you conspicuously and appropriately publish on each copy an
appropriate copyright notice; keep intact all notices stating that this License and
any non-permissive terms added in accord with section 7 apply to the code; keep
intact all notices of the absence of any warranty; and give all recipients a copy of
this License along with the Program.
You may charge any price or no price for each copy that you convey, and you may offer
support or warranty protection for a fee.
### 5. Conveying Modified Source Versions
You may convey a work based on the Program, or the modifications to produce it from
the Program, in the form of source code under the terms of section 4, provided that
you also meet all of these conditions:
* **a)** The work must carry prominent notices stating that you modified it, and giving a
relevant date.
* **b)** The work must carry prominent notices stating that it is released under this
License and any conditions added under section 7. This requirement modifies the
requirement in section 4 to “keep intact all notices”.
* **c)** You must license the entire work, as a whole, under this License to anyone who
comes into possession of a copy. This License will therefore apply, along with any
applicable section 7 additional terms, to the whole of the work, and all its parts,
regardless of how they are packaged. This License gives no permission to license the
work in any other way, but it does not invalidate such permission if you have
separately received it.
* **d)** If the work has interactive user interfaces, each must display Appropriate Legal
Notices; however, if the Program has interactive interfaces that do not display
Appropriate Legal Notices, your work need not make them do so.
A compilation of a covered work with other separate and independent works, which are
not by their nature extensions of the covered work, and which are not combined with
it such as to form a larger program, in or on a volume of a storage or distribution
medium, is called an “aggregate” if the compilation and its resulting
copyright are not used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work in an aggregate
does not cause this License to apply to the other parts of the aggregate.
### 6. Conveying Non-Source Forms
You may convey a covered work in object code form under the terms of sections 4 and
5, provided that you also convey the machine-readable Corresponding Source under the
terms of this License, in one of these ways:
* **a)** Convey the object code in, or embodied in, a physical product (including a
physical distribution medium), accompanied by the Corresponding Source fixed on a
durable physical medium customarily used for software interchange.
* **b)** Convey the object code in, or embodied in, a physical product (including a
physical distribution medium), accompanied by a written offer, valid for at least
three years and valid for as long as you offer spare parts or customer support for
that product model, to give anyone who possesses the object code either **(1)** a copy of
the Corresponding Source for all the software in the product that is covered by this
License, on a durable physical medium customarily used for software interchange, for
a price no more than your reasonable cost of physically performing this conveying of
source, or **(2)** access to copy the Corresponding Source from a network server at no
charge.
* **c)** Convey individual copies of the object code with a copy of the written offer to
provide the Corresponding Source. This alternative is allowed only occasionally and
noncommercially, and only if you received the object code with such an offer, in
accord with subsection 6b.
* **d)** Convey the object code by offering access from a designated place (gratis or for
a charge), and offer equivalent access to the Corresponding Source in the same way
through the same place at no further charge. You need not require recipients to copy
the Corresponding Source along with the object code. If the place to copy the object
code is a network server, the Corresponding Source may be on a different server
(operated by you or a third party) that supports equivalent copying facilities,
provided you maintain clear directions next to the object code saying where to find
the Corresponding Source. Regardless of what server hosts the Corresponding Source,
you remain obligated to ensure that it is available for as long as needed to satisfy
these requirements.
* **e)** Convey the object code using peer-to-peer transmission, provided you inform
other peers where the object code and Corresponding Source of the work are being
offered to the general public at no charge under subsection 6d.
A separable portion of the object code, whose source code is excluded from the
Corresponding Source as a System Library, need not be included in conveying the
object code work.
A “User Product” is either **(1)** a “consumer product”, which
means any tangible personal property which is normally used for personal, family, or
household purposes, or **(2)** anything designed or sold for incorporation into a
dwelling. In determining whether a product is a consumer product, doubtful cases
shall be resolved in favor of coverage. For a particular product received by a
particular user, “normally used” refers to a typical or common use of
that class of product, regardless of the status of the particular user or of the way
in which the particular user actually uses, or expects or is expected to use, the
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the only significant mode of use of the product.
“Installation Information” for a User Product means any methods,
procedures, authorization keys, or other information required to install and execute
modified versions of a covered work in that User Product from a modified version of
its Corresponding Source. The information must suffice to ensure that the continued
functioning of the modified object code is in no case prevented or interfered with
solely because modification has been made.
If you convey an object code work under this section in, or with, or specifically for
use in, a User Product, and the conveying occurs as part of a transaction in which
the right of possession and use of the User Product is transferred to the recipient
in perpetuity or for a fixed term (regardless of how the transaction is
characterized), the Corresponding Source conveyed under this section must be
accompanied by the Installation Information. But this requirement does not apply if
neither you nor any third party retains the ability to install modified object code
on the User Product (for example, the work has been installed in ROM).
The requirement to provide Installation Information does not include a requirement to
continue to provide support service, warranty, or updates for a work that has been
modified or installed by the recipient, or for the User Product in which it has been
modified or installed. Access to a network may be denied when the modification itself
materially and adversely affects the operation of the network or violates the rules
and protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided, in accord with
this section must be in a format that is publicly documented (and with an
implementation available to the public in source code form), and must require no
special password or key for unpacking, reading or copying.
### 7. Additional Terms
“Additional permissions” are terms that supplement the terms of this
License by making exceptions from one or more of its conditions. Additional
permissions that are applicable to the entire Program shall be treated as though they
were included in this License, to the extent that they are valid under applicable
law. If additional permissions apply only to part of the Program, that part may be
used separately under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option remove any
additional permissions from that copy, or from any part of it. (Additional
permissions may be written to require their own removal in certain cases when you
modify the work.) You may place additional permissions on material, added by you to a
covered work, for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you add to a
covered work, you may (if authorized by the copyright holders of that material)
supplement the terms of this License with terms:
* **a)** Disclaiming warranty or limiting liability differently from the terms of
sections 15 and 16 of this License; or
* **b)** Requiring preservation of specified reasonable legal notices or author
attributions in that material or in the Appropriate Legal Notices displayed by works
containing it; or
* **c)** Prohibiting misrepresentation of the origin of that material, or requiring that
modified versions of such material be marked in reasonable ways as different from the
original version; or
* **d)** Limiting the use for publicity purposes of names of licensors or authors of the
material; or
* **e)** Declining to grant rights under trademark law for use of some trade names,
trademarks, or service marks; or
* **f)** Requiring indemnification of licensors and authors of that material by anyone
who conveys the material (or modified versions of it) with contractual assumptions of
liability to the recipient, for any liability that these contractual assumptions
directly impose on those licensors and authors.
All other non-permissive additional terms are considered “further
restrictions” within the meaning of section 10. If the Program as you received
it, or any part of it, contains a notice stating that it is governed by this License
along with a term that is a further restriction, you may remove that term. If a
license document contains a further restriction but permits relicensing or conveying
under this License, you may add to a covered work material governed by the terms of
that license document, provided that the further restriction does not survive such
relicensing or conveying.
If you add terms to a covered work in accord with this section, you must place, in
the relevant source files, a statement of the additional terms that apply to those
files, or a notice indicating where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the form of a
separately written license, or stated as exceptions; the above requirements apply
either way.
### 8. Termination
You may not propagate or modify a covered work except as expressly provided under
this License. Any attempt otherwise to propagate or modify it is void, and will
automatically terminate your rights under this License (including any patent licenses
granted under the third paragraph of section 11).
However, if you cease all violation of this License, then your license from a
particular copyright holder is reinstated **(a)** provisionally, unless and until the
copyright holder explicitly and finally terminates your license, and **(b)** permanently,
if the copyright holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is reinstated permanently
if the copyright holder notifies you of the violation by some reasonable means, this
is the first time you have received notice of violation of this License (for any
work) from that copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the licenses of
parties who have received copies or rights from you under this License. If your
rights have been terminated and not permanently reinstated, you do not qualify to
receive new licenses for the same material under section 10.
### 9. Acceptance Not Required for Having Copies
You are not required to accept this License in order to receive or run a copy of the
Program. Ancillary propagation of a covered work occurring solely as a consequence of
using peer-to-peer transmission to receive a copy likewise does not require
acceptance. However, nothing other than this License grants you permission to
propagate or modify any covered work. These actions infringe copyright if you do not
accept this License. Therefore, by modifying or propagating a covered work, you
indicate your acceptance of this License to do so.
### 10. Automatic Licensing of Downstream Recipients
Each time you convey a covered work, the recipient automatically receives a license
from the original licensors, to run, modify and propagate that work, subject to this
License. You are not responsible for enforcing compliance by third parties with this
License.
An “entity transaction” is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an organization, or
merging organizations. If propagation of a covered work results from an entity
transaction, each party to that transaction who receives a copy of the work also
receives whatever licenses to the work the party's predecessor in interest had or
could give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if the predecessor
has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the rights granted or
affirmed under this License. For example, you may not impose a license fee, royalty,
or other charge for exercise of rights granted under this License, and you may not
initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging
that any patent claim is infringed by making, using, selling, offering for sale, or
importing the Program or any portion of it.
### 11. Patents
A “contributor” is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The work thus
licensed is called the contributor's “contributor version”.
A contributor's “essential patent claims” are all patent claims owned or
controlled by the contributor, whether already acquired or hereafter acquired, that
would be infringed by some manner, permitted by this License, of making, using, or
selling its contributor version, but do not include claims that would be infringed
only as a consequence of further modification of the contributor version. For
purposes of this definition, “control” includes the right to grant patent
sublicenses in a manner consistent with the requirements of this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free patent license
under the contributor's essential patent claims, to make, use, sell, offer for sale,
import and otherwise run, modify and propagate the contents of its contributor
version.
In the following three paragraphs, a “patent license” is any express
agreement or commitment, however denominated, not to enforce a patent (such as an
express permission to practice a patent or covenant not to sue for patent
infringement). To “grant” such a patent license to a party means to make
such an agreement or commitment not to enforce a patent against the party.
If you convey a covered work, knowingly relying on a patent license, and the
Corresponding Source of the work is not available for anyone to copy, free of charge
and under the terms of this License, through a publicly available network server or
other readily accessible means, then you must either **(1)** cause the Corresponding
Source to be so available, or **(2)** arrange to deprive yourself of the benefit of the
patent license for this particular work, or **(3)** arrange, in a manner consistent with
the requirements of this License, to extend the patent license to downstream
recipients. “Knowingly relying” means you have actual knowledge that, but
for the patent license, your conveying the covered work in a country, or your
recipient's use of the covered work in a country, would infringe one or more
identifiable patents in that country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or arrangement, you
convey, or propagate by procuring conveyance of, a covered work, and grant a patent
license to some of the parties receiving the covered work authorizing them to use,
propagate, modify or convey a specific copy of the covered work, then the patent
license you grant is automatically extended to all recipients of the covered work and
works based on it.
A patent license is “discriminatory” if it does not include within the
scope of its coverage, prohibits the exercise of, or is conditioned on the
non-exercise of one or more of the rights that are specifically granted under this
License. You may not convey a covered work if you are a party to an arrangement with
a third party that is in the business of distributing software, under which you make
payment to the third party based on the extent of your activity of conveying the
work, and under which the third party grants, to any of the parties who would receive
the covered work from you, a discriminatory patent license **(a)** in connection with
copies of the covered work conveyed by you (or copies made from those copies), or **(b)**
primarily for and in connection with specific products or compilations that contain
the covered work, unless you entered into that arrangement, or that patent license
was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting any implied
license or other defenses to infringement that may otherwise be available to you
under applicable patent law.
### 12. No Surrender of Others' Freedom
If conditions are imposed on you (whether by court order, agreement or otherwise)
that contradict the conditions of this License, they do not excuse you from the
conditions of this License. If you cannot convey a covered work so as to satisfy
simultaneously your obligations under this License and any other pertinent
obligations, then as a consequence you may not convey it at all. For example, if you
agree to terms that obligate you to collect a royalty for further conveying from
those to whom you convey the Program, the only way you could satisfy both those terms
and this License would be to refrain entirely from conveying the Program.
### 13. Use with the GNU Affero General Public License
Notwithstanding any other provision of this License, you have permission to link or
combine any covered work with a work licensed under version 3 of the GNU Affero
General Public License into a single combined work, and to convey the resulting work.
The terms of this License will continue to apply to the part which is the covered
work, but the special requirements of the GNU Affero General Public License, section
13, concerning interaction through a network will apply to the combination as such.
### 14. Revised Versions of this License
The Free Software Foundation may publish revised and/or new versions of the GNU
General Public License from time to time. Such new versions will be similar in spirit
to the present version, but may differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Program specifies that
a certain numbered version of the GNU General Public License “or any later
version” applies to it, you have the option of following the terms and
conditions either of that numbered version or of any later version published by the
Free Software Foundation. If the Program does not specify a version number of the GNU
General Public License, you may choose any version ever published by the Free
Software Foundation.
If the Program specifies that a proxy can decide which future versions of the GNU
General Public License can be used, that proxy's public statement of acceptance of a
version permanently authorizes you to choose that version for the Program.
Later license versions may give you additional or different permissions. However, no
additional obligations are imposed on any author or copyright holder as a result of
your choosing to follow a later version.
### 15. Disclaimer of Warranty
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
### 16. Limitation of Liability
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE
WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
### 17. Interpretation of Sections 15 and 16
If the disclaimer of warranty and limitation of liability provided above cannot be
given local legal effect according to their terms, reviewing courts shall apply local
law that most closely approximates an absolute waiver of all civil liability in
connection with the Program, unless a warranty or assumption of liability accompanies
a copy of the Program in return for a fee.
_END OF TERMS AND CONDITIONS_
## How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible use to
the public, the best way to achieve this is to make it free software which everyone
can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach them
to the start of each source file to most effectively state the exclusion of warranty;
and each file should have at least the “copyright” line and a pointer to
where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short notice like this
when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'show c' for details.
The hypothetical commands `show w` and `show c` should show the appropriate parts of
the General Public License. Of course, your program's commands might be different;
for a GUI interface, you would use an “about box”.
You should also get your employer (if you work as a programmer) or school, if any, to
sign a “copyright disclaimer” for the program, if necessary. For more
information on this, and how to apply and follow the GNU GPL, see
&lt;<http://www.gnu.org/licenses/>&gt;.
The GNU General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may consider it
more useful to permit linking proprietary applications with the library. If this is
what you want to do, use the GNU Lesser General Public License instead of this
License. But first, please read
&lt;<http://www.gnu.org/philosophy/why-not-lgpl.html>&gt;.

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GNU General Public License Mozilla Public License Version 2.0
========================== ==================================
_Version 3, 29 June 2007_ ### 1. Definitions
_Copyright © 2007 Free Software Foundation, Inc. &lt;<http://fsf.org/>&gt;_
**1.1. “Contributor”**
Everyone is permitted to copy and distribute verbatim copies of this license means each individual or legal entity that creates, contributes to
document, but changing it is not allowed. the creation of, or owns Covered Software.
## Preamble **1.2. “Contributor Version”**
means the combination of the Contributions of others (if any) used
The GNU General Public License is a free, copyleft license for software and other by a Contributor and that particular Contributor's Contribution.
kinds of works.
**1.3. “Contribution”**
The licenses for most software and other practical works are designed to take away means Covered Software of a particular Contributor.
your freedom to share and change the works. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change all versions of a **1.4. “Covered Software”**
program--to make sure it remains free software for all its users. We, the Free means Source Code Form to which the initial Contributor has attached
Software Foundation, use the GNU General Public License for most of our software; it the notice in Exhibit A, the Executable Form of such Source Code
applies also to any other work released this way by its authors. You can apply it to Form, and Modifications of such Source Code Form, in each case
your programs, too. including portions thereof.
When we speak of free software, we are referring to freedom, not price. Our General **1.5. “Incompatible With Secondary Licenses”**
Public Licenses are designed to make sure that you have the freedom to distribute means
copies of free software (and charge for them if you wish), that you receive source
code or can get it if you want it, that you can change the software or use pieces of * **(a)** that the initial Contributor has attached the notice described
it in new free programs, and that you know you can do these things. in Exhibit B to the Covered Software; or
* **(b)** that the Covered Software was made available under the terms of
To protect your rights, we need to prevent others from denying you these rights or version 1.1 or earlier of the License, but not also under the
asking you to surrender the rights. Therefore, you have certain responsibilities if terms of a Secondary License.
you distribute copies of the software, or if you modify it: responsibilities to
respect the freedom of others. **1.6. “Executable Form”**
means any form of the work other than Source Code Form.
For example, if you distribute copies of such a program, whether gratis or for a fee,
you must pass on to the recipients the same freedoms that you received. You must make **1.7. “Larger Work”**
sure that they, too, receive or can get the source code. And you must show them these means a work that combines Covered Software with other material, in
terms so they know their rights. a separate file or files, that is not Covered Software.
Developers that use the GNU GPL protect your rights with two steps: **(1)** assert **1.8. “License”**
copyright on the software, and **(2)** offer you this License giving you legal permission means this document.
to copy, distribute and/or modify it.
**1.9. “Licensable”**
For the developers' and authors' protection, the GPL clearly explains that there is means having the right to grant, to the maximum extent possible,
no warranty for this free software. For both users' and authors' sake, the GPL whether at the time of the initial grant or subsequently, any and
requires that modified versions be marked as changed, so that their problems will not all of the rights conveyed by this License.
be attributed erroneously to authors of previous versions.
**1.10. “Modifications”**
Some devices are designed to deny users access to install or run modified versions of means any of the following:
the software inside them, although the manufacturer can do so. This is fundamentally
incompatible with the aim of protecting users' freedom to change the software. The * **(a)** any file in Source Code Form that results from an addition to,
systematic pattern of such abuse occurs in the area of products for individuals to deletion from, or modification of the contents of Covered
use, which is precisely where it is most unacceptable. Therefore, we have designed Software; or
this version of the GPL to prohibit the practice for those products. If such problems * **(b)** any new file in Source Code Form that contains any Covered
arise substantially in other domains, we stand ready to extend this provision to Software.
those domains in future versions of the GPL, as needed to protect the freedom of
users. **1.11. “Patent Claims” of a Contributor**
means any patent claim(s), including without limitation, method,
Finally, every program is threatened constantly by software patents. States should process, and apparatus claims, in any patent Licensable by such
not allow patents to restrict development and use of software on general-purpose Contributor that would be infringed, but for the grant of the
computers, but in those that do, we wish to avoid the special danger that patents License, by the making, using, selling, offering for sale, having
applied to a free program could make it effectively proprietary. To prevent this, the made, import, or transfer of either its Contributions or its
GPL assures that patents cannot be used to render the program non-free. Contributor Version.
The precise terms and conditions for copying, distribution and modification follow. **1.12. “Secondary License”**
means either the GNU General Public License, Version 2.0, the GNU
## TERMS AND CONDITIONS Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
### 0. Definitions licenses.
“This License” refers to version 3 of the GNU General Public License. **1.13. “Source Code Form”**
means the form of the work preferred for making modifications.
“Copyright” also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks. **1.14. “You” (or “Your”)**
means an individual or a legal entity exercising rights under this
“The Program” refers to any copyrightable work licensed under this License. For legal entities, “You” includes any entity that
License. Each licensee is addressed as “you”. “Licensees” and controls, is controlled by, or is under common control with You. For
“recipients” may be individuals or organizations. purposes of this definition, “control” means **(a)** the power, direct
or indirect, to cause the direction or management of such entity,
To “modify” a work means to copy from or adapt all or part of the work in whether by contract or otherwise, or **(b)** ownership of more than
a fashion requiring copyright permission, other than the making of an exact copy. The fifty percent (50%) of the outstanding shares or beneficial
resulting work is called a “modified version” of the earlier work or a ownership of such entity.
work “based on” the earlier work.
A “covered work” means either the unmodified Program or a work based on ### 2. License Grants and Conditions
the Program.
#### 2.1. Grants
To “propagate” a work means to do anything with it that, without
permission, would make you directly or secondarily liable for infringement under Each Contributor hereby grants You a world-wide, royalty-free,
applicable copyright law, except executing it on a computer or modifying a private non-exclusive license:
copy. Propagation includes copying, distribution (with or without modification),
making available to the public, and in some countries other activities as well. * **(a)** under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
To “convey” a work means any kind of propagation that enables other modify, display, perform, distribute, and otherwise exploit its
parties to make or receive copies. Mere interaction with a user through a computer Contributions, either on an unmodified basis, with Modifications, or
network, with no transfer of a copy, is not conveying. as part of a Larger Work; and
* **(b)** under Patent Claims of such Contributor to make, use, sell, offer
An interactive user interface displays “Appropriate Legal Notices” to the for sale, have made, import, and otherwise transfer either its
extent that it includes a convenient and prominently visible feature that **(1)** Contributions or its Contributor Version.
displays an appropriate copyright notice, and **(2)** tells the user that there is no
warranty for the work (except to the extent that warranties are provided), that #### 2.2. Effective Date
licensees may convey the work under this License, and how to view a copy of this
License. If the interface presents a list of user commands or options, such as a The licenses granted in Section 2.1 with respect to any Contribution
menu, a prominent item in the list meets this criterion. become effective for each Contribution on the date the Contributor first
distributes such Contribution.
### 1. Source Code
#### 2.3. Limitations on Grant Scope
The “source code” for a work means the preferred form of the work for
making modifications to it. “Object code” means any non-source form of a The licenses granted in this Section 2 are the only rights granted under
work. this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
A “Standard Interface” means an interface that either is an official Notwithstanding Section 2.1(b) above, no patent license is granted by a
standard defined by a recognized standards body, or, in the case of interfaces Contributor:
specified for a particular programming language, one that is widely used among
developers working in that language. * **(a)** for any code that a Contributor has removed from Covered Software;
or
The “System Libraries” of an executable work include anything, other than * **(b)** for infringements caused by: **(i)** Your and any other third party's
the work as a whole, that **(a)** is included in the normal form of packaging a Major modifications of Covered Software, or **(ii)** the combination of its
Component, but which is not part of that Major Component, and **(b)** serves only to Contributions with other software (except as part of its Contributor
enable use of the work with that Major Component, or to implement a Standard Version); or
Interface for which an implementation is available to the public in source code form. * **(c)** under Patent Claims infringed by Covered Software in the absence of
A “Major Component”, in this context, means a major essential component its Contributions.
(kernel, window system, and so on) of the specific operating system (if any) on which
the executable work runs, or a compiler used to produce the work, or an object code This License does not grant any rights in the trademarks, service marks,
interpreter used to run it. or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
The “Corresponding Source” for a work in object code form means all the
source code needed to generate, install, and (for an executable work) run the object #### 2.4. Subsequent Licenses
code and to modify the work, including scripts to control those activities. However,
it does not include the work's System Libraries, or general-purpose tools or No Contributor makes additional grants as a result of Your choice to
generally available free programs which are used unmodified in performing those distribute the Covered Software under a subsequent version of this
activities but which are not part of the work. For example, Corresponding Source License (see Section 10.2) or under the terms of a Secondary License (if
includes interface definition files associated with source files for the work, and permitted under the terms of Section 3.3).
the source code for shared libraries and dynamically linked subprograms that the work
is specifically designed to require, such as by intimate data communication or #### 2.5. Representation
control flow between those subprograms and other parts of the work.
Each Contributor represents that the Contributor believes its
The Corresponding Source need not include anything that users can regenerate Contributions are its original creation(s) or it has sufficient rights
automatically from other parts of the Corresponding Source. to grant the rights to its Contributions conveyed by this License.
The Corresponding Source for a work in source code form is that same work. #### 2.6. Fair Use
### 2. Basic Permissions This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
All rights granted under this License are granted for the term of copyright on the equivalents.
Program, and are irrevocable provided the stated conditions are met. This License
explicitly affirms your unlimited permission to run the unmodified Program. The #### 2.7. Conditions
output from running a covered work is covered by this License only if the output,
given its content, constitutes a covered work. This License acknowledges your rights Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
of fair use or other equivalent, as provided by copyright law. in Section 2.1.
You may make, run and propagate covered works that you do not convey, without
conditions so long as your license otherwise remains in force. You may convey covered ### 3. Responsibilities
works to others for the sole purpose of having them make modifications exclusively
for you, or provide you with facilities for running those works, provided that you #### 3.1. Distribution of Source Form
comply with the terms of this License in conveying all material for which you do not
control copyright. Those thus making or running the covered works for you must do so All distribution of Covered Software in Source Code Form, including any
exclusively on your behalf, under your direction and control, on terms that prohibit Modifications that You create or to which You contribute, must be under
them from making any copies of your copyrighted material outside their relationship the terms of this License. You must inform recipients that the Source
with you. Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
Conveying under any other circumstances is permitted solely under the conditions attempt to alter or restrict the recipients' rights in the Source Code
stated below. Sublicensing is not allowed; section 10 makes it unnecessary. Form.
### 3. Protecting Users' Legal Rights From Anti-Circumvention Law #### 3.2. Distribution of Executable Form
No covered work shall be deemed part of an effective technological measure under any If You distribute Covered Software in Executable Form then:
applicable law fulfilling obligations under article 11 of the WIPO copyright treaty
adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention * **(a)** such Covered Software must also be made available in Source Code
of such measures. Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
When you convey a covered work, you waive any legal power to forbid circumvention of Form by reasonable means in a timely manner, at a charge no more
technological measures to the extent such circumvention is effected by exercising than the cost of distribution to the recipient; and
rights under this License with respect to the covered work, and you disclaim any
intention to limit operation or modification of the work as a means of enforcing, * **(b)** You may distribute such Executable Form under the terms of this
against the work's users, your or third parties' legal rights to forbid circumvention License, or sublicense it under different terms, provided that the
of technological measures. license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
### 4. Conveying Verbatim Copies
#### 3.3. Distribution of a Larger Work
You may convey verbatim copies of the Program's source code as you receive it, in any
medium, provided that you conspicuously and appropriately publish on each copy an You may create and distribute a Larger Work under terms of Your choice,
appropriate copyright notice; keep intact all notices stating that this License and provided that You also comply with the requirements of this License for
any non-permissive terms added in accord with section 7 apply to the code; keep the Covered Software. If the Larger Work is a combination of Covered
intact all notices of the absence of any warranty; and give all recipients a copy of Software with a work governed by one or more Secondary Licenses, and the
this License along with the Program. Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
You may charge any price or no price for each copy that you convey, and you may offer under the terms of such Secondary License(s), so that the recipient of
support or warranty protection for a fee. the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
### 5. Conveying Modified Source Versions License(s).
You may convey a work based on the Program, or the modifications to produce it from #### 3.4. Notices
the Program, in the form of source code under the terms of section 4, provided that
you also meet all of these conditions: You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
* **a)** The work must carry prominent notices stating that you modified it, and giving a or limitations of liability) contained within the Source Code Form of
relevant date. the Covered Software, except that You may alter any license notices to
* **b)** The work must carry prominent notices stating that it is released under this the extent required to remedy known factual inaccuracies.
License and any conditions added under section 7. This requirement modifies the
requirement in section 4 to “keep intact all notices”. #### 3.5. Application of Additional Terms
* **c)** You must license the entire work, as a whole, under this License to anyone who
comes into possession of a copy. This License will therefore apply, along with any You may choose to offer, and to charge a fee for, warranty, support,
applicable section 7 additional terms, to the whole of the work, and all its parts, indemnity or liability obligations to one or more recipients of Covered
regardless of how they are packaged. This License gives no permission to license the Software. However, You may do so only on Your own behalf, and not on
work in any other way, but it does not invalidate such permission if you have behalf of any Contributor. You must make it absolutely clear that any
separately received it. such warranty, support, indemnity, or liability obligation is offered by
* **d)** If the work has interactive user interfaces, each must display Appropriate Legal You alone, and You hereby agree to indemnify every Contributor for any
Notices; however, if the Program has interactive interfaces that do not display liability incurred by such Contributor as a result of warranty, support,
Appropriate Legal Notices, your work need not make them do so. indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
A compilation of a covered work with other separate and independent works, which are jurisdiction.
not by their nature extensions of the covered work, and which are not combined with
it such as to form a larger program, in or on a volume of a storage or distribution
medium, is called an “aggregate” if the compilation and its resulting ### 4. Inability to Comply Due to Statute or Regulation
copyright are not used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work in an aggregate If it is impossible for You to comply with any of the terms of this
does not cause this License to apply to the other parts of the aggregate. License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: **(a)** comply with
### 6. Conveying Non-Source Forms the terms of this License to the maximum extent possible; and **(b)**
describe the limitations and the code they affect. Such description must
You may convey a covered work in object code form under the terms of sections 4 and be placed in a text file included with all distributions of the Covered
5, provided that you also convey the machine-readable Corresponding Source under the Software under this License. Except to the extent prohibited by statute
terms of this License, in one of these ways: or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
* **a)** Convey the object code in, or embodied in, a physical product (including a
physical distribution medium), accompanied by the Corresponding Source fixed on a
durable physical medium customarily used for software interchange. ### 5. Termination
* **b)** Convey the object code in, or embodied in, a physical product (including a
physical distribution medium), accompanied by a written offer, valid for at least **5.1.** The rights granted under this License will terminate automatically
three years and valid for as long as you offer spare parts or customer support for if You fail to comply with any of its terms. However, if You become
that product model, to give anyone who possesses the object code either **(1)** a copy of compliant, then the rights granted under this License from a particular
the Corresponding Source for all the software in the product that is covered by this Contributor are reinstated **(a)** provisionally, unless and until such
License, on a durable physical medium customarily used for software interchange, for Contributor explicitly and finally terminates Your grants, and **(b)** on an
a price no more than your reasonable cost of physically performing this conveying of ongoing basis, if such Contributor fails to notify You of the
source, or **(2)** access to copy the Corresponding Source from a network server at no non-compliance by some reasonable means prior to 60 days after You have
charge. come back into compliance. Moreover, Your grants from a particular
* **c)** Convey individual copies of the object code with a copy of the written offer to Contributor are reinstated on an ongoing basis if such Contributor
provide the Corresponding Source. This alternative is allowed only occasionally and notifies You of the non-compliance by some reasonable means, this is the
noncommercially, and only if you received the object code with such an offer, in first time You have received notice of non-compliance with this License
accord with subsection 6b. from such Contributor, and You become compliant prior to 30 days after
* **d)** Convey the object code by offering access from a designated place (gratis or for Your receipt of the notice.
a charge), and offer equivalent access to the Corresponding Source in the same way
through the same place at no further charge. You need not require recipients to copy **5.2.** If You initiate litigation against any entity by asserting a patent
the Corresponding Source along with the object code. If the place to copy the object infringement claim (excluding declaratory judgment actions,
code is a network server, the Corresponding Source may be on a different server counter-claims, and cross-claims) alleging that a Contributor Version
(operated by you or a third party) that supports equivalent copying facilities, directly or indirectly infringes any patent, then the rights granted to
provided you maintain clear directions next to the object code saying where to find You by any and all Contributors for the Covered Software under Section
the Corresponding Source. Regardless of what server hosts the Corresponding Source, 2.1 of this License shall terminate.
you remain obligated to ensure that it is available for as long as needed to satisfy
these requirements. **5.3.** In the event of termination under Sections 5.1 or 5.2 above, all
* **e)** Convey the object code using peer-to-peer transmission, provided you inform end user license agreements (excluding distributors and resellers) which
other peers where the object code and Corresponding Source of the work are being have been validly granted by You or Your distributors under this License
offered to the general public at no charge under subsection 6d. prior to termination shall survive termination.
A separable portion of the object code, whose source code is excluded from the
Corresponding Source as a System Library, need not be included in conveying the ### 6. Disclaimer of Warranty
object code work.
> Covered Software is provided under this License on an “as is”
A “User Product” is either **(1)** a “consumer product”, which > basis, without warranty of any kind, either expressed, implied, or
means any tangible personal property which is normally used for personal, family, or > statutory, including, without limitation, warranties that the
household purposes, or **(2)** anything designed or sold for incorporation into a > Covered Software is free of defects, merchantable, fit for a
dwelling. In determining whether a product is a consumer product, doubtful cases > particular purpose or non-infringing. The entire risk as to the
shall be resolved in favor of coverage. For a particular product received by a > quality and performance of the Covered Software is with You.
particular user, “normally used” refers to a typical or common use of > Should any Covered Software prove defective in any respect, You
that class of product, regardless of the status of the particular user or of the way > (not any Contributor) assume the cost of any necessary servicing,
in which the particular user actually uses, or expects or is expected to use, the > repair, or correction. This disclaimer of warranty constitutes an
product. A product is a consumer product regardless of whether the product has > essential part of this License. No use of any Covered Software is
substantial commercial, industrial or non-consumer uses, unless such uses represent > authorized under this License except under this disclaimer.
the only significant mode of use of the product.
### 7. Limitation of Liability
“Installation Information” for a User Product means any methods,
procedures, authorization keys, or other information required to install and execute > Under no circumstances and under no legal theory, whether tort
modified versions of a covered work in that User Product from a modified version of > (including negligence), contract, or otherwise, shall any
its Corresponding Source. The information must suffice to ensure that the continued > Contributor, or anyone who distributes Covered Software as
functioning of the modified object code is in no case prevented or interfered with > permitted above, be liable to You for any direct, indirect,
solely because modification has been made. > special, incidental, or consequential damages of any character
> including, without limitation, damages for lost profits, loss of
If you convey an object code work under this section in, or with, or specifically for > goodwill, work stoppage, computer failure or malfunction, or any
use in, a User Product, and the conveying occurs as part of a transaction in which > and all other commercial damages or losses, even if such party
the right of possession and use of the User Product is transferred to the recipient > shall have been informed of the possibility of such damages. This
in perpetuity or for a fixed term (regardless of how the transaction is > limitation of liability shall not apply to liability for death or
characterized), the Corresponding Source conveyed under this section must be > personal injury resulting from such party's negligence to the
accompanied by the Installation Information. But this requirement does not apply if > extent applicable law prohibits such limitation. Some
neither you nor any third party retains the ability to install modified object code > jurisdictions do not allow the exclusion or limitation of
on the User Product (for example, the work has been installed in ROM). > incidental or consequential damages, so this exclusion and
> limitation may not apply to You.
The requirement to provide Installation Information does not include a requirement to
continue to provide support service, warranty, or updates for a work that has been
modified or installed by the recipient, or for the User Product in which it has been ### 8. Litigation
modified or installed. Access to a network may be denied when the modification itself
materially and adversely affects the operation of the network or violates the rules Any litigation relating to this License may be brought only in the
and protocols for communication across the network. courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
Corresponding Source conveyed, and Installation Information provided, in accord with jurisdiction, without reference to its conflict-of-law provisions.
this section must be in a format that is publicly documented (and with an Nothing in this Section shall prevent a party's ability to bring
implementation available to the public in source code form), and must require no cross-claims or counter-claims.
special password or key for unpacking, reading or copying.
### 7. Additional Terms ### 9. Miscellaneous
“Additional permissions” are terms that supplement the terms of this This License represents the complete agreement concerning the subject
License by making exceptions from one or more of its conditions. Additional matter hereof. If any provision of this License is held to be
permissions that are applicable to the entire Program shall be treated as though they unenforceable, such provision shall be reformed only to the extent
were included in this License, to the extent that they are valid under applicable necessary to make it enforceable. Any law or regulation which provides
law. If additional permissions apply only to part of the Program, that part may be that the language of a contract shall be construed against the drafter
used separately under those permissions, but the entire Program remains governed by shall not be used to construe this License against a Contributor.
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option remove any ### 10. Versions of the License
additional permissions from that copy, or from any part of it. (Additional
permissions may be written to require their own removal in certain cases when you #### 10.1. New Versions
modify the work.) You may place additional permissions on material, added by you to a
covered work, for which you have or can give appropriate copyright permission. Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
Notwithstanding any other provision of this License, for material you add to a publish new versions of this License. Each version will be given a
covered work, you may (if authorized by the copyright holders of that material) distinguishing version number.
supplement the terms of this License with terms:
#### 10.2. Effect of New Versions
* **a)** Disclaiming warranty or limiting liability differently from the terms of
sections 15 and 16 of this License; or You may distribute the Covered Software under the terms of the version
* **b)** Requiring preservation of specified reasonable legal notices or author of the License under which You originally received the Covered Software,
attributions in that material or in the Appropriate Legal Notices displayed by works or under the terms of any subsequent version published by the license
containing it; or steward.
* **c)** Prohibiting misrepresentation of the origin of that material, or requiring that
modified versions of such material be marked in reasonable ways as different from the #### 10.3. Modified Versions
original version; or
* **d)** Limiting the use for publicity purposes of names of licensors or authors of the If you create software not governed by this License, and you want to
material; or create a new license for such software, you may create and use a
* **e)** Declining to grant rights under trademark law for use of some trade names, modified version of this License if you rename the license and remove
trademarks, or service marks; or any references to the name of the license steward (except to note that
* **f)** Requiring indemnification of licensors and authors of that material by anyone such modified license differs from this License).
who conveys the material (or modified versions of it) with contractual assumptions of
liability to the recipient, for any liability that these contractual assumptions #### 10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
directly impose on those licensors and authors.
If You choose to distribute Source Code Form that is Incompatible With
All other non-permissive additional terms are considered “further Secondary Licenses under the terms of this version of the License, the
restrictions” within the meaning of section 10. If the Program as you received notice described in Exhibit B of this License must be attached.
it, or any part of it, contains a notice stating that it is governed by this License
along with a term that is a further restriction, you may remove that term. If a ## Exhibit A - Source Code Form License Notice
license document contains a further restriction but permits relicensing or conveying
under this License, you may add to a covered work material governed by the terms of This Source Code Form is subject to the terms of the Mozilla Public
that license document, provided that the further restriction does not survive such License, v. 2.0. If a copy of the MPL was not distributed with this
relicensing or conveying. file, You can obtain one at http://mozilla.org/MPL/2.0/.
If you add terms to a covered work in accord with this section, you must place, in If it is not possible or desirable to put the notice in a particular
the relevant source files, a statement of the additional terms that apply to those file, then You may include the notice in a location (such as a LICENSE
files, or a notice indicating where to find the applicable terms. file in a relevant directory) where a recipient would be likely to look
for such a notice.
Additional terms, permissive or non-permissive, may be stated in the form of a
separately written license, or stated as exceptions; the above requirements apply You may add additional accurate notices of copyright ownership.
either way.
## Exhibit B - “Incompatible With Secondary Licenses” Notice
### 8. Termination
This Source Code Form is "Incompatible With Secondary Licenses", as
You may not propagate or modify a covered work except as expressly provided under defined by the Mozilla Public License, v. 2.0.
this License. Any attempt otherwise to propagate or modify it is void, and will
automatically terminate your rights under this License (including any patent licenses
granted under the third paragraph of section 11).
However, if you cease all violation of this License, then your license from a
particular copyright holder is reinstated **(a)** provisionally, unless and until the
copyright holder explicitly and finally terminates your license, and **(b)** permanently,
if the copyright holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is reinstated permanently
if the copyright holder notifies you of the violation by some reasonable means, this
is the first time you have received notice of violation of this License (for any
work) from that copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the licenses of
parties who have received copies or rights from you under this License. If your
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### 9. Acceptance Not Required for Having Copies
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### 10. Automatic Licensing of Downstream Recipients
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You may not impose any further restrictions on the exercise of the rights granted or
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### 11. Patents
A “contributor” is a copyright holder who authorizes use under this
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A contributor's “essential patent claims” are all patent claims owned or
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If you convey a covered work, knowingly relying on a patent license, and the
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Nothing in this License shall be construed as excluding or limiting any implied
license or other defenses to infringement that may otherwise be available to you
under applicable patent law.
### 12. No Surrender of Others' Freedom
If conditions are imposed on you (whether by court order, agreement or otherwise)
that contradict the conditions of this License, they do not excuse you from the
conditions of this License. If you cannot convey a covered work so as to satisfy
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agree to terms that obligate you to collect a royalty for further conveying from
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and this License would be to refrain entirely from conveying the Program.
### 13. Use with the GNU Affero General Public License
Notwithstanding any other provision of this License, you have permission to link or
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The terms of this License will continue to apply to the part which is the covered
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13, concerning interaction through a network will apply to the combination as such.
### 14. Revised Versions of this License
The Free Software Foundation may publish revised and/or new versions of the GNU
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Each version is given a distinguishing version number. If the Program specifies that
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If the Program specifies that a proxy can decide which future versions of the GNU
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Later license versions may give you additional or different permissions. However, no
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### 15. Disclaimer of Warranty
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
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### 16. Limitation of Liability
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### 17. Interpretation of Sections 15 and 16
If the disclaimer of warranty and limitation of liability provided above cannot be
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_END OF TERMS AND CONDITIONS_
## How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible use to
the public, the best way to achieve this is to make it free software which everyone
can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach them
to the start of each source file to most effectively state the exclusion of warranty;
and each file should have at least the “copyright” line and a pointer to
where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short notice like this
when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'show c' for details.
The hypothetical commands `show w` and `show c` should show the appropriate parts of
the General Public License. Of course, your program's commands might be different;
for a GUI interface, you would use an “about box”.
You should also get your employer (if you work as a programmer) or school, if any, to
sign a “copyright disclaimer” for the program, if necessary. For more
information on this, and how to apply and follow the GNU GPL, see
&lt;<http://www.gnu.org/licenses/>&gt;.
The GNU General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may consider it
more useful to permit linking proprietary applications with the library. If this is
what you want to do, use the GNU Lesser General Public License instead of this
License. But first, please read
&lt;<http://www.gnu.org/philosophy/why-not-lgpl.html>&gt;.

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README.md
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@ -24,36 +24,21 @@ of DirectX and OpenGL, as well as Metal, are not supported (but pull-requests ar
## License ## License
Unless otherwise specified, _librashader_ is licensed under the GPLv3. The core parts of librashader such as the preprocessor, the preset parser,
the reflection library, and the runtimes, are all licensed under the Mozilla Public License version 2.0.
Copyright (C) 2022 Ronny Chan <ronny@ronnychan.ca>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
While librashader is an independent reimplementation of the RetroArch shader pipeline, referencing the RetroArch source
code was indispensable to its creation. As it is therefore considered a derivative work, the core parts of librashader
such as the preprocessor, the preset parser, the reflection library, and the runtimes, are all licensed under GPLv3.
The librashader C API, i.e. its headers and definitions, *not its implementation in `librashader_capi`*, The librashader C API, i.e. its headers and definitions, *not its implementation in `librashader_capi`*,
are unique to librashader and are more permissively licensed, and may allow you to use librashader in your permissively are unique to librashader and are more permissively licensed, and may allow you to use librashader in your permissively
licensed or proprietary project. licensed or proprietary project.
While the code for `librashader_capi` (`librashader.so` and `rashader.dll`) is still under GPLv3, While the code for `librashader_capi` (`librashader.so` and `rashader.dll`) is still under MPL-2.0,
you may use librashader in a non-GPL work by linking against the MIT licensed `librashader_ld`, you may use librashader in proprietary works by linking against the MIT licensed `librashader_ld`,
which implements the librashader C API, and thunks its calls to any `librashader.so` or `rashader.dll` which implements the librashader C API, and thunks its calls to any `librashader.so` or `rashader.dll`
library found in the load path, *provided that `librashader.so` or `rashader.dll` are distributed under the restrictions library found in the load path, *provided that `librashader.so` or `rashader.dll` are distributed under the restrictions
of GPLv3*. of MPLv2*.
Note that if your project is not compatible with GPLv3, you **can not distribute `librashader.so` or `rashader.dll`** Note that if your project is not compatible with MPLv2, you **can not distribute `librashader.so` or `rashader.dll`**
alongside your project, **only `librashader-ld.so` or `rashader-ld.dll`**, which will do nothing without a librashader alongside your project, **only `librashader-ld.so` or `rashader-ld.dll`**, which will do nothing without a librashader
implementation in the load path. The end user must obtain the implementation of librashader themselves. implementation in the load path. The end user must obtain the implementation of librashader themselves.
You may, at your discretion, choose to distribute `librashader` under the terms of MPL-2.0 instead of GPLv3.

0
librashader-runtime-dx11/src/filter_chain.rs Normal file
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