文件中的关键字与对应的协议

1. GPL许可证

文件中的关键字：

（1）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.

版本：3.0及以后

（2）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 2, or (at your option) any later version.

版本：2.0及以后

（3）.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
.\" This is free documentation; 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 2 of
.\" the License, or (at your option) any later version.
.\"

版本：2.0及以后

2. LGPL许可证

文件中的关键字：

（1）The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

版本：2.1及以后

3. ISC许可证

文件中的关键字：

SPDX-License-Identifier: ISC

版本：无

4. Old MIT许可证

文件中的关键字：

HarfBuzz is licensed under the so-called "Old MIT" license.

版本：无

5. Apache许可证

文件中的关键字：

Apache License

Version 2.0, January 2004

http://www.apache.org/licenses/

版本：2.0

6. FDL许可证

文件中的关键字：

（1）@c The GNU Free Documentation License.
@center Version 1.3, 3 November 2008

版本：1.3

（2）Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation

版本：1.3

7. LIBRARY GPL许可证

文件中的关键字：

GNU LIBRARY GENERAL PUBLIC LICENSE
Version 2, June 1991

版本：2

8. Academic Free License许可证

文件中的关键字：

Licensed under the Academic Free License version 2.1

版本：2.1