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$Id: LICENSE 10600 2009-12-23 03:27:41Z FREQUENCY@cpan.org $

Legally speaking, this package and its contents are:

  Copyright 2009, Jonathan Yu <jawnsy@cpan.org>. All rights reserved.

But this is really just a legal technicality that allows the author to
offer this package under the public domain and also a variety of licensing
options. For all intents and purposes, this is public domain software,
which means you can do whatever you want with it. Really.

SUMMARY

I, the copyright holder of this package, hereby release the entire contents
therein into the public domain. This applies worldwide, to the extent that
it is permissible by law.

In case this is not legally possible, I grant any entity the right to use
this work for any purpose, without any conditions, unless such conditions
are required by law.

If you so choose, or if you are legally compelled to do so, you may use
this software under the terms of your choice of the following licenses:

1. The MIT/X11 License; or,
2. The Perl Artistic License, version 1 or later; or,
3. The GNU General Public License, version 1 or later

For the sake of convenience, the full text of the latest versions of these
licenses (as of writing) follows.

RATIONALE

As the author/copyright holder/intellectual property owner, I want this
codebase to be as free (both as in freedom and free beer) as possible in
your jurisdiction. This software and the code contained herein is (to
the best of my knowledge) completely unencumbered by patents, copyright,
licensing restrictions, etc.

DISCLAIMER OF WARRANTIES

The software is provided "AS IS", without warranty of any kind, express or
implied, including but not limited to the warranties of merchantability,
fitness for a particular purpose and noninfringement. In no event shall
the authors or copyright holders be liable for any claim, damages or other
liability, whether in an action of contract, tort or otherwise, arising
from, out of or in connection with the software or the use or other dealings
in the software.

-------------- MIT/X11 License -------------- 

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

-------------- Artistic License (Version 2.0) -------------- 

Copyright (c) 2000-2006, The Perl Foundation.

Everyone is permitted to copy and distribute verbatim copies of this license
document, but changing it is not allowed.

Preamble

This license establishes the terms under which a given free software Package
may be copied, modified, distributed, and/or redistributed. The intent is that
the Copyright Holder maintains some artistic control over the development of
that Package while still keeping the Package available as open source and free
software.

You are always permitted to make arrangements wholly outside of this license
directly with the Copyright Holder of a given Package. If the terms of this
license do not permit the full use that you propose to make of the Package,
you should contact the Copyright Holder and seek a different licensing
arrangement.

Definitions

"Copyright Holder" means the individual(s) or organization(s) named in the
copyright notice for the entire Package.

"Contributor" means any party that has contributed code or other material to
the Package, in accordance with the Copyright Holder's procedures.

"You" and "your" means any person who would like to copy, distribute, or
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"Package" means the collection of files distributed by the Copyright Holder,
and derivatives of that collection and/or of those files. A given Package may
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"Distribute" means providing a copy of the Package or making it accessible to
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were not explicitly requested by the Copyright Holder.

"Original License" means this Artistic License as Distributed with the
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"Compiled" form means the compiled bytecode, object code, binary, or any other
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Permission for Use and Modification Without Distribution

(1) You are permitted to use the Standard Version and create and use Modified
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Permissions for Redistribution of the Standard Version

(2) You may Distribute verbatim copies of the Source form of the Standard
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(3) You may apply any bug fixes, portability changes, and other modifications
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Distribution of Modified Versions of the Package as Source

(4) You may Distribute your Modified Version as Source (either gratis or for a
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    at least ONE of the following:

    (a) make the Modified Version available to the Copyright Holder of the
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    (c) allow anyone who receives a copy of the Modified Version to make the
        Source form of the Modified Version available to others under
        (i) the Original License or
        (ii) a license that permits the licensee to freely copy, modify and
             redistribute the Modified Version using the same licensing terms
             that apply to the copy that the licensee received, and requires
             that the Source form of the Modified Version, and of any works
             derived from it, be made freely available in that license fees
             are prohibited but Distributor Fees are allowed.

Distribution of Compiled Forms of the Standard Version or Modified Versions
without the Source

(5) You may Distribute Compiled forms of the Standard Version without the
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(6) You may Distribute a Modified Version in Compiled form without the Source,
    provided that you comply with Section 4 with respect to the Source of the
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Aggregating or Linking the Package

(7) You may aggregate the Package (either the Standard Version or Modified
    Version) with other packages and Distribute the resulting aggregation
    provided that you do not charge a licensing fee for the Package.
    Distributor Fees are permitted, and licensing fees for other components
    in the aggregation are permitted. The terms of this license apply to the
    use and Distribution of the Standard or Modified Versions as included in
    the aggregation.

(8) You are permitted to link Modified and Standard Versions with other works,
    to embed the Package in a larger work of your own, or to build stand-alone
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Items That are Not Considered Part of a Modified Version

(9) Works (including, but not limited to, modules and scripts) that merely
    extend or make use of the Package, do not, by themselves, cause the
    Package to be a Modified Version. In addition, such works are not
    considered parts of the Package itself, and are not subject to the terms
    of this license.

General Provisions

(10) Any use, modification, and distribution of the Standard or Modified
     Versions is governed by this Artistic License. By using, modifying or
     distributing the Package, you accept this license. Do not use, modify,
     or distribute the Package, if you do not accept this license.

(11) If your Modified Version has been derived from a Modified Version made by
     someone other than you, you are nevertheless required to ensure that your
     Modified Version complies with the requirements of this license.

(12) This license does not grant you the right to use any trademark, service
     mark, tradename, or logo of the Copyright Holder.

(13) This license includes the non-exclusive, worldwide, free-of-charge patent
     license to make, have made, use, offer to sell, sell, import and
     otherwise transfer the Package with respect to any patent claims
     licensable by the Copyright Holder that are necessarily infringed by the
     Package. If you institute patent litigation (including a cross-claim or
     counterclaim) against any party alleging that the Package constitutes
     direct or contributory patent infringement, then this Artistic License to
     you shall terminate on the date that such litigation is filed.

(14) Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER
     AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.
     THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY
     YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR
     CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR
     CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE,
     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

-------------- The GNU General Public License (Version 3.0) --------------

GNU GENERAL PUBLIC LICENSE

Version 3, 29 June 2007

Copyright (c) 2007 Free Software Foundation, Inc. <http://fsf.org/>

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
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For the developers' and authors' protection, the GPL clearly explains that
there is no warranty for this free software. For both users' and authors'
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Some devices are designed to deny users access to install or run modified
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This is fundamentally incompatible with the aim of protecting users' freedom
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Finally, every program is threatened constantly by software patents. States
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The precise terms and conditions for copying, distribution and modification
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TERMS AND CONDITIONS
0. Definitions.

  "This License" refers to version 3 of the GNU General Public License.

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1. Source Code.

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9. Acceptance Not Required for Having Copies.

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  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
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10. Automatic Licensing of Downstream Recipients.

  Each time you convey a covered work, the recipient automatically receives a
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  An "entity transaction" is a transaction transferring control of an
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  You may not impose any further restrictions on the exercise of the rights
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  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
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  licensed is called the contributor's "contributor version".

  A contributor's "essential patent claims" are all patent claims owned or
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  acquired, that would be infringed by some manner, permitted by this License,
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  Each contributor grants you a non-exclusive, worldwide, royalty-free patent
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  In the following three paragraphs, a "patent license" is any express
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  party.

  If you convey a covered work, knowingly relying on a patent license, and the
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  (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
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  If, pursuant to or in connection with a single transaction or arrangement,
  you convey, or propagate by procuring conveyance of, a covered work, and
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  A patent license is "discriminatory" if it does not include within the scope
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  non-exercise of one or more of the rights that are specifically granted
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  party grants, to any of the parties who would receive the covered work from
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  (a) in connection with copies of the covered work conveyed by you (or copies
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  (b) primarily for and in connection with specific products or compilations
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      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
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  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
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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
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  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
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  for the Program.

  Later license versions may give you additional or different permissions.
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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,
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16. Limitation of Liability.

  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
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  PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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  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
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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.