license.txt

   1                The Artistic License 2.0
   2
   3         Copyright (c) 2000-2006, The Perl Foundation.
   4
   5      Everyone is permitted to copy and distribute verbatim copies
   6       of this license document, but changing it is not allowed.
   7
   8 Preamble
   9
  10 This license establishes the terms under which a given free software
  11 Package may be copied, modified, distributed, and/or redistributed.
  12 The intent is that the Copyright Holder maintains some artistic
  13 control over the development of that Package while still keeping the
  14 Package available as open source and free software.
  15
  16 You are always permitted to make arrangements wholly outside of this
  17 license directly with the Copyright Holder of a given Package.  If the
  18 terms of this license do not permit the full use that you propose to
  19 make of the Package, you should contact the Copyright Holder and seek
  20 a different licensing arrangement.
  21
  22 Definitions
  23
  24     "Copyright Holder" means the individual(s) or organization(s)
  25     named in the copyright notice for the entire Package.
  26
  27     "Contributor" means any party that has contributed code or other
  28     material to the Package, in accordance with the Copyright Holder's
  29     procedures.
  30
  31     "You" and "your" means any person who would like to copy,
  32     distribute, or modify the Package.
  33
  34     "Package" means the collection of files distributed by the
  35     Copyright Holder, and derivatives of that collection and/or of
  36     those files. A given Package may consist of either the Standard
  37     Version, or a Modified Version.
  38
  39     "Distribute" means providing a copy of the Package or making it
  40     accessible to anyone else, or in the case of a company or
  41     organization, to others outside of your company or organization.
  42
  43     "Distributor Fee" means any fee that you charge for Distributing
  44     this Package or providing support for this Package to another
  45     party.  It does not mean licensing fees.
  46
  47     "Standard Version" refers to the Package if it has not been
  48     modified, or has been modified only in ways explicitly requested
  49     by the Copyright Holder.
  50
  51     "Modified Version" means the Package, if it has been changed, and
  52     such changes were not explicitly requested by the Copyright
  53     Holder.
  54
  55     "Original License" means this Artistic License as Distributed with
  56     the Standard Version of the Package, in its current version or as
  57     it may be modified by The Perl Foundation in the future.
  58
  59     "Source" form means the source code, documentation source, and
  60     configuration files for the Package.
  61
  62     "Compiled" form means the compiled bytecode, object code, binary,
  63     or any other form resulting from mechanical transformation or
  64     translation of the Source form.
  65
  66
  67 Permission for Use and Modification Without Distribution
  68
  69 (1)  You are permitted to use the Standard Version and create and use
  70 Modified Versions for any purpose without restriction, provided that
  71 you do not Distribute the Modified Version.
  72
  73
  74 Permissions for Redistribution of the Standard Version
  75
  76 (2)  You may Distribute verbatim copies of the Source form of the
  77 Standard Version of this Package in any medium without restriction,
  78 either gratis or for a Distributor Fee, provided that you duplicate
  79 all of the original copyright notices and associated disclaimers.  At
  80 your discretion, such verbatim copies may or may not include a
  81 Compiled form of the Package.
  82
  83 (3)  You may apply any bug fixes, portability changes, and other
  84 modifications made available from the Copyright Holder.  The resulting
  85 Package will still be considered the Standard Version, and as such
  86 will be subject to the Original License.
  87
  88
  89 Distribution of Modified Versions of the Package as Source
  90
  91 (4)  You may Distribute your Modified Version as Source (either gratis
  92 or for a Distributor Fee, and with or without a Compiled form of the
  93 Modified Version) provided that you clearly document how it differs
  94 from the Standard Version, including, but not limited to, documenting
  95 any non-standard features, executables, or modules, and provided that
  96 you do at least ONE of the following:
  97
  98     (a)  make the Modified Version available to the Copyright Holder
  99     of the Standard Version, under the Original License, so that the
 100     Copyright Holder may include your modifications in the Standard
 101     Version.
 102
 103     (b)  ensure that installation of your Modified Version does not
 104     prevent the user installing or running the Standard Version. In
 105     addition, the Modified Version must bear a name that is different
 106     from the name of the Standard Version.
 107
 108     (c)  allow anyone who receives a copy of the Modified Version to
 109     make the Source form of the Modified Version available to others
 110     under
 111
 112     (i)  the Original License or
 113
 114     (ii)  a license that permits the licensee to freely copy,
 115     modify and redistribute the Modified Version using the same
 116     licensing terms that apply to the copy that the licensee
 117     received, and requires that the Source form of the Modified
 118     Version, and of any works derived from it, be made freely
 119     available in that license fees are prohibited but Distributor
 120     Fees are allowed.
 121
 122
 123 Distribution of Compiled Forms of the Standard Version
 124 or Modified Versions without the Source
 125
 126 (5)  You may Distribute Compiled forms of the Standard Version without
 127 the Source, provided that you include complete instructions on how to
 128 get the Source of the Standard Version.  Such instructions must be
 129 valid at the time of your distribution.  If these instructions, at any
 130 time while you are carrying out such distribution, become invalid, you
 131 must provide new instructions on demand or cease further distribution.
 132 If you provide valid instructions or cease distribution within thirty
 133 days after you become aware that the instructions are invalid, then
 134 you do not forfeit any of your rights under this license.
 135
 136 (6)  You may Distribute a Modified Version in Compiled form without
 137 the Source, provided that you comply with Section 4 with respect to
 138 the Source of the Modified Version.
 139
 140
 141 Aggregating or Linking the Package
 142
 143 (7)  You may aggregate the Package (either the Standard Version or
 144 Modified Version) with other packages and Distribute the resulting
 145 aggregation provided that you do not charge a licensing fee for the
 146 Package.  Distributor Fees are permitted, and licensing fees for other
 147 components in the aggregation are permitted. The terms of this license
 148 apply to the use and Distribution of the Standard or Modified Versions
 149 as included in the aggregation.
 150
 151 (8) You are permitted to link Modified and Standard Versions with
 152 other works, to embed the Package in a larger work of your own, or to
 153 build stand-alone binary or bytecode versions of applications that
 154 include the Package, and Distribute the result without restriction,
 155 provided the result does not expose a direct interface to the Package.
 156
 157
 158 Items That are Not Considered Part of a Modified Version
 159
 160 (9) Works (including, but not limited to, modules and scripts) that
 161 merely extend or make use of the Package, do not, by themselves, cause
 162 the Package to be a Modified Version.  In addition, such works are not
 163 considered parts of the Package itself, and are not subject to the
 164 terms of this license.
 165
 166
 167 General Provisions
 168
 169 (10)  Any use, modification, and distribution of the Standard or
 170 Modified Versions is governed by this Artistic License. By using,
 171 modifying or distributing the Package, you accept this license. Do not
 172 use, modify, or distribute the Package, if you do not accept this
 173 license.
 174
 175 (11)  If your Modified Version has been derived from a Modified
 176 Version made by someone other than you, you are nevertheless required
 177 to ensure that your Modified Version complies with the requirements of
 178 this license.
 179
 180 (12)  This license does not grant you the right to use any trademark,
 181 service mark, tradename, or logo of the Copyright Holder.
 182
 183 (13)  This license includes the non-exclusive, worldwide,
 184 free-of-charge patent license to make, have made, use, offer to sell,
 185 sell, import and otherwise transfer the Package with respect to any
 186 patent claims licensable by the Copyright Holder that are necessarily
 187 infringed by the Package. If you institute patent litigation
 188 (including a cross-claim or counterclaim) against any party alleging
 189 that the Package constitutes direct or contributory patent
 190 infringement, then this Artistic License to you shall terminate on the
 191 date that such litigation is filed.
 192
 193 (14)  Disclaimer of Warranty:
 194 THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
 195 IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED
 196 WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
 197 NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL
 198 LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL
 199 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
 200 DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF
 201 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.