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| 1 | +This software is Copyright (c) 2018 by Li ZHOU. |
| 2 | + |
| 3 | +This is free software, licensed under: |
| 4 | + |
| 5 | + The Artistic License 2.0 (GPL Compatible) |
| 6 | + |
| 7 | + The Artistic License 2.0 |
| 8 | + |
| 9 | + Copyright (c) 2000-2006, The Perl Foundation. |
| 10 | + |
| 11 | + Everyone is permitted to copy and distribute verbatim copies |
| 12 | + of this license document, but changing it is not allowed. |
| 13 | + |
| 14 | +Preamble |
| 15 | + |
| 16 | +This license establishes the terms under which a given free software |
| 17 | +Package may be copied, modified, distributed, and/or redistributed. |
| 18 | +The intent is that the Copyright Holder maintains some artistic |
| 19 | +control over the development of that Package while still keeping the |
| 20 | +Package available as open source and free software. |
| 21 | + |
| 22 | +You are always permitted to make arrangements wholly outside of this |
| 23 | +license directly with the Copyright Holder of a given Package. If the |
| 24 | +terms of this license do not permit the full use that you propose to |
| 25 | +make of the Package, you should contact the Copyright Holder and seek |
| 26 | +a different licensing arrangement. |
| 27 | + |
| 28 | +Definitions |
| 29 | + |
| 30 | + "Copyright Holder" means the individual(s) or organization(s) |
| 31 | + named in the copyright notice for the entire Package. |
| 32 | + |
| 33 | + "Contributor" means any party that has contributed code or other |
| 34 | + material to the Package, in accordance with the Copyright Holder's |
| 35 | + procedures. |
| 36 | + |
| 37 | + "You" and "your" means any person who would like to copy, |
| 38 | + distribute, or modify the Package. |
| 39 | + |
| 40 | + "Package" means the collection of files distributed by the |
| 41 | + Copyright Holder, and derivatives of that collection and/or of |
| 42 | + those files. A given Package may consist of either the Standard |
| 43 | + Version, or a Modified Version. |
| 44 | + |
| 45 | + "Distribute" means providing a copy of the Package or making it |
| 46 | + accessible to anyone else, or in the case of a company or |
| 47 | + organization, to others outside of your company or organization. |
| 48 | + |
| 49 | + "Distributor Fee" means any fee that you charge for Distributing |
| 50 | + this Package or providing support for this Package to another |
| 51 | + party. It does not mean licensing fees. |
| 52 | + |
| 53 | + "Standard Version" refers to the Package if it has not been |
| 54 | + modified, or has been modified only in ways explicitly requested |
| 55 | + by the Copyright Holder. |
| 56 | + |
| 57 | + "Modified Version" means the Package, if it has been changed, and |
| 58 | + such changes were not explicitly requested by the Copyright |
| 59 | + Holder. |
| 60 | + |
| 61 | + "Original License" means this Artistic License as Distributed with |
| 62 | + the Standard Version of the Package, in its current version or as |
| 63 | + it may be modified by The Perl Foundation in the future. |
| 64 | + |
| 65 | + "Source" form means the source code, documentation source, and |
| 66 | + configuration files for the Package. |
| 67 | + |
| 68 | + "Compiled" form means the compiled bytecode, object code, binary, |
| 69 | + or any other form resulting from mechanical transformation or |
| 70 | + translation of the Source form. |
| 71 | + |
| 72 | + |
| 73 | +Permission for Use and Modification Without Distribution |
| 74 | + |
| 75 | +(1) You are permitted to use the Standard Version and create and use |
| 76 | +Modified Versions for any purpose without restriction, provided that |
| 77 | +you do not Distribute the Modified Version. |
| 78 | + |
| 79 | + |
| 80 | +Permissions for Redistribution of the Standard Version |
| 81 | + |
| 82 | +(2) You may Distribute verbatim copies of the Source form of the |
| 83 | +Standard Version of this Package in any medium without restriction, |
| 84 | +either gratis or for a Distributor Fee, provided that you duplicate |
| 85 | +all of the original copyright notices and associated disclaimers. At |
| 86 | +your discretion, such verbatim copies may or may not include a |
| 87 | +Compiled form of the Package. |
| 88 | + |
| 89 | +(3) You may apply any bug fixes, portability changes, and other |
| 90 | +modifications made available from the Copyright Holder. The resulting |
| 91 | +Package will still be considered the Standard Version, and as such |
| 92 | +will be subject to the Original License. |
| 93 | + |
| 94 | + |
| 95 | +Distribution of Modified Versions of the Package as Source |
| 96 | + |
| 97 | +(4) You may Distribute your Modified Version as Source (either gratis |
| 98 | +or for a Distributor Fee, and with or without a Compiled form of the |
| 99 | +Modified Version) provided that you clearly document how it differs |
| 100 | +from the Standard Version, including, but not limited to, documenting |
| 101 | +any non-standard features, executables, or modules, and provided that |
| 102 | +you do at least ONE of the following: |
| 103 | + |
| 104 | + (a) make the Modified Version available to the Copyright Holder |
| 105 | + of the Standard Version, under the Original License, so that the |
| 106 | + Copyright Holder may include your modifications in the Standard |
| 107 | + Version. |
| 108 | + |
| 109 | + (b) ensure that installation of your Modified Version does not |
| 110 | + prevent the user installing or running the Standard Version. In |
| 111 | + addition, the Modified Version must bear a name that is different |
| 112 | + from the name of the Standard Version. |
| 113 | + |
| 114 | + (c) allow anyone who receives a copy of the Modified Version to |
| 115 | + make the Source form of the Modified Version available to others |
| 116 | + under |
| 117 | + |
| 118 | + (i) the Original License or |
| 119 | + |
| 120 | + (ii) a license that permits the licensee to freely copy, |
| 121 | + modify and redistribute the Modified Version using the same |
| 122 | + licensing terms that apply to the copy that the licensee |
| 123 | + received, and requires that the Source form of the Modified |
| 124 | + Version, and of any works derived from it, be made freely |
| 125 | + available in that license fees are prohibited but Distributor |
| 126 | + Fees are allowed. |
| 127 | + |
| 128 | + |
| 129 | +Distribution of Compiled Forms of the Standard Version |
| 130 | +or Modified Versions without the Source |
| 131 | + |
| 132 | +(5) You may Distribute Compiled forms of the Standard Version without |
| 133 | +the Source, provided that you include complete instructions on how to |
| 134 | +get the Source of the Standard Version. Such instructions must be |
| 135 | +valid at the time of your distribution. If these instructions, at any |
| 136 | +time while you are carrying out such distribution, become invalid, you |
| 137 | +must provide new instructions on demand or cease further distribution. |
| 138 | +If you provide valid instructions or cease distribution within thirty |
| 139 | +days after you become aware that the instructions are invalid, then |
| 140 | +you do not forfeit any of your rights under this license. |
| 141 | + |
| 142 | +(6) You may Distribute a Modified Version in Compiled form without |
| 143 | +the Source, provided that you comply with Section 4 with respect to |
| 144 | +the Source of the Modified Version. |
| 145 | + |
| 146 | + |
| 147 | +Aggregating or Linking the Package |
| 148 | + |
| 149 | +(7) You may aggregate the Package (either the Standard Version or |
| 150 | +Modified Version) with other packages and Distribute the resulting |
| 151 | +aggregation provided that you do not charge a licensing fee for the |
| 152 | +Package. Distributor Fees are permitted, and licensing fees for other |
| 153 | +components in the aggregation are permitted. The terms of this license |
| 154 | +apply to the use and Distribution of the Standard or Modified Versions |
| 155 | +as included in the aggregation. |
| 156 | + |
| 157 | +(8) You are permitted to link Modified and Standard Versions with |
| 158 | +other works, to embed the Package in a larger work of your own, or to |
| 159 | +build stand-alone binary or bytecode versions of applications that |
| 160 | +include the Package, and Distribute the result without restriction, |
| 161 | +provided the result does not expose a direct interface to the Package. |
| 162 | + |
| 163 | + |
| 164 | +Items That are Not Considered Part of a Modified Version |
| 165 | + |
| 166 | +(9) Works (including, but not limited to, modules and scripts) that |
| 167 | +merely extend or make use of the Package, do not, by themselves, cause |
| 168 | +the Package to be a Modified Version. In addition, such works are not |
| 169 | +considered parts of the Package itself, and are not subject to the |
| 170 | +terms of this license. |
| 171 | + |
| 172 | + |
| 173 | +General Provisions |
| 174 | + |
| 175 | +(10) Any use, modification, and distribution of the Standard or |
| 176 | +Modified Versions is governed by this Artistic License. By using, |
| 177 | +modifying or distributing the Package, you accept this license. Do not |
| 178 | +use, modify, or distribute the Package, if you do not accept this |
| 179 | +license. |
| 180 | + |
| 181 | +(11) If your Modified Version has been derived from a Modified |
| 182 | +Version made by someone other than you, you are nevertheless required |
| 183 | +to ensure that your Modified Version complies with the requirements of |
| 184 | +this license. |
| 185 | + |
| 186 | +(12) This license does not grant you the right to use any trademark, |
| 187 | +service mark, tradename, or logo of the Copyright Holder. |
| 188 | + |
| 189 | +(13) This license includes the non-exclusive, worldwide, |
| 190 | +free-of-charge patent license to make, have made, use, offer to sell, |
| 191 | +sell, import and otherwise transfer the Package with respect to any |
| 192 | +patent claims licensable by the Copyright Holder that are necessarily |
| 193 | +infringed by the Package. If you institute patent litigation |
| 194 | +(including a cross-claim or counterclaim) against any party alleging |
| 195 | +that the Package constitutes direct or contributory patent |
| 196 | +infringement, then this Artistic License to you shall terminate on the |
| 197 | +date that such litigation is filed. |
| 198 | + |
| 199 | +(14) Disclaimer of Warranty: |
| 200 | +THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS |
| 201 | +IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED |
| 202 | +WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR |
| 203 | +NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL |
| 204 | +LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL |
| 205 | +BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL |
| 206 | +DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF |
| 207 | +ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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