CLDR uses the XML format provided by UTS #35: Unicode Locale Data Markup Language (LDML). LDML is a format used not only for CLDR, but also for gener

CLDR - Unicode Common Locale Data Repository

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CLDR uses the XML format provided by UTS #35: Unicode Locale Data Markup Language (LDML). LDML is a format used not only for CLDR, but also for general interchange of locale data, such as in Microsoft's .NET.

CLDR has an online tool to gather data, the Survey Tool. The Survey Tool is open twice a year to gather data for new structure, and make corrections in previously-released data.

The CLDR tooling supports the interactive Survey Tool, plus all of the tooling necessary to test and process the release. Programmers interested in contributing to the tooling are welcome; they may also be interested in contributing to ICU , which uses CLDR data. For more information, see http://cldr.unicode.org/development.

CLDR covers many different types of data, but not everything. For projects which may cover other types of data, see Other Projects.

People may file tickets with bug fixes or feature requests. Once a ticket is approved, they can also create pull requests on GitHub.