<i18n dev> RFR: 8291660: Grapheme support in BreakIterator

[Stuart Marks]

On Tue, 23 Aug 2022 22:44:13 GMT, Naoto Sato <naoto at openjdk.org> wrote:

> This is to enhance the character break analysis in `java.text.BreakIterator` to conform to the extended grapheme cluster boundaries defined in https://www.unicode.org/reports/tr29/#Grapheme_Cluster_Boundaries. A corresponding CSR has also been drafted, as there will be behavioral changes with this modification.

I took a quick look. Overall looks reasonable. How much scrutiny did you need?

Also, nice use of method handles.

Might be helpful to provide an example of the behavior change in the CSR.

This is probably also worth a release note documenting the behavior change and showing an example.

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PR: https://git.openjdk.org/jdk/pull/9991