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This folder contains the program used to generate the Unicode character categories file CharUnicodeInfoData.cs.

Before running this tool, ensure the following are all in sync:

• The package at https://github.com/dotnet/runtime-assets/tree/master/src/System.Private.Runtime.UnicodeData contains the up-to-date Unicode data you want to process.

• The element in $(REPOROOT)/eng/Versions.props contains the correct version of the package mentioned above.

• The <UnicodeUcdVersion> element in ./GenUnicodeProp.csproj contains the UCD version of the files you wish to process.

Once this has been configured, from this directory, invoke:

dotnet run

If you want to include casing data (simple case mappings + case folding) in the generated file, execute:

dotnet run -- -IncludeCasingData

Then move the generated CharUnicodeInfoData.cs file to $(LIBRARIESROOT)/System.Private.CoreLib/src/System/Globalization, overwriting the file in that directory, and commit it. DO NOT commit the file to this directory.

Update other components

• Follow the instructions to update the Unicode data in RegularExpressions library.
• Follow the instructions to update the Unicode data in System.Text.Encodings.Web library.