Ready for Trial: Intl BestFitMatcher by using ICU LocaleMatcher

[Frank Tang]

Contact emails

ft...@google.com

Explainer

None

Specification

https://tc39.es/ecma402/#sec-bestfitmatcher

Design docs

https://docs.google.com/document/d/1cPGfiihn76yj2iAomKcspPFyLLcnk3WkCiqceBQPQyk/edit#

Summary

Use the ICU LocaleMatcher to implement the BestFitMatcher of ECMA402 in v8 JavaScript engine. ECMA402 defined the BestFitMatcher abstract operation to allow browser implementation to implement a better way to match locale data. ICU 67.1 (launched in April 2020) comes with an improved icu::LocaleMatcher API and implementation . This document shows how we implement v8's BestFitMatcher to use such API.

Blink component

Blink>JavaScript>Internationalization

TAG review

None

TAG review status

Not applicable

Risks

Interoperability and Compatibility

Gecko: No signal

WebKit: No signal

Web developers: No signals

Goals for experimentation

None

Ongoing technical constraints

None

Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?

No

Is this feature fully tested by web-platform-tests?

No

Flag name

--harmony_intl_best_fit_matcher

Tracking bug

https://bugs.chromium.org/p/v8/issues/detail?id=7051

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5407573287108608

This intent message was generated by Chrome Platform Status.

[Joe Medley]

Do you mean ready for an origin trial?

Joe Medley | Technical Writer, Chrome DevRel | jme...@google.com | 816-678-7195

If an API's not documented it doesn't exist.

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