On Sat, 2022-12-10 at 13:28 -0800, Paul Eggert wrote:
On 2022-12-09 15:13, Benjamin Drung wrote:
https://github.com/unicode-org/cldr/blob/main/common/supplemental/metaZones.... says "Copyright © 1991-2013 Unicode, Inc." and "For terms of use, see http://www.unicode.org/copyright.html". This page points to https://www.unicode.org/license.txt
Thanks for pointing this out - I wasn't aware of the intent there. Still, I see some legal issues. copyright.html defines Unicode data files to be the data files published under the following URLs:
https://www.unicode.org/Public/ (except PDF online code charts) https://www.unicode.org/reports/ https://www.unicode.org/ivd/data/
license.txt says we have permission to redistribute modified versions of these data files. However, I don't see anything that grants permission to redistribute modified versions of <https://github.com/unicode-org/cldr/blob/main/common/supplemental/metaZones....> (the file you mentioned) as I could not find it under any of the abovementioned three URLs.
I expect the intent was that we have permission to redistribute working data like that metaZones.xml URL even though it isn't part of an official release, but if so the intent should be stated formally. (I've learned to be cautious when it comes to copyright....)
https://github.com/unicode-org/cldr comes with unicode-license.txt. The README.md says: "Usage of CLDR data and software is governed by the Unicode Terms of Use a copy of which is included as unicode- license.txt." and "SPDX-License-Identifier: Unicode-DFS-2016". Some of the files in the repository have this SPDX license header. We should ask them to add this license header to all relevant files including metaZones.xml. -- Benjamin Drung Debian & Ubuntu Developer