[iOS][globalization][icu] Tracking issue for HybridGlobalization: Native API + ICU

[mkhamoyan]

The task is to remove as much data from ICU files as possible and exchange ICU4C functions that are using this data with iOS native functions.

1. Implement Locale functions.

   • [x] GlobalizationNative_GetLocaleInfoString Implemented by #81470

   • [x] GlobalizationNative_GetLocaleInfoInt Implemented by #84417

   • [x] GlobalizationNative_GetLocaleInfoGroupingSizesNative Implemented by #84417

   • [x] GlobalizationNative_GetLocaleTimeFormat Implemented by #84417

2. Implement Collation functions.

   • [x] GlobalizationNative_CompareString Implemented by https://github.com/dotnet/runtime/pull/85965

   • [x] GlobalizationNative_IndexOf Implemented by https://github.com/dotnet/runtime/issues/86699

   • [x] GlobalizationNative_LastIndexOf Implemented by https://github.com/dotnet/runtime/issues/86699

   • [x] GlobalizationNative_StartsWith Implemented by https://github.com/dotnet/runtime/issues/86699

   • [x] GlobalizationNative_EndsWith Implemented by https://github.com/dotnet/runtime/issues/86699

   • [x] GlobalizationNative_ChangeCase https://github.com/dotnet/runtime/pull/87919 https://github.com/dotnet/runtime/issues/88180

   • [x] GlobalizationNative_ChangeCaseInvariant https://github.com/dotnet/runtime/pull/87919 https://github.com/dotnet/runtime/issues/88180

3. Implement Normalization functions

   • [x] IsNormalized Implemented by https://github.com/dotnet/runtime/pull/90582
   • [x] NormalizeString Implemented by https://github.com/dotnet/runtime/pull/90582

4. Implement calendar functions

   • [x] GlobalizationNative_GetCalendarInfo Implemented by https://github.com/dotnet/runtime/pull/90004

5. Implement timezoneinfo functions

   • [x] GetTimeZoneDisplayName Implemented by https://github.com/dotnet/runtime/pull/91458

6. Create new icu file for mobile, filtering out features that are implemented by native functions

   • [x] Filter out Locale related resources Implemented by https://github.com/dotnet/icu/pull/349 Implemented by https://github.com/dotnet/icu/pull/372

   • [x] Filter out Collation related resources Implemented by https://github.com/dotnet/icu/pull/363

7. Add HybridGlobalization flag to sdks and load icudt_hybrid.dat file when hybrid mode is on

   • [x] Add HybridGlobalization flag to dotnet/sdk https://github.com/dotnet/sdk/pull/33669
   • [x] Add HybridGlobalization flag to xamarin/macios sdk https://github.com/xamarin/xamarin-macios/pull/18498
   • [x] Load icudt_hybrid.dat file when hybrid mode is on https://github.com/dotnet/runtime/pull/88041

8. Tasks opened during feature implemetations

   • [x] https://github.com/dotnet/runtime/issues/86636
   • [x] https://github.com/dotnet/runtime/issues/83514
   • [x] https://github.com/dotnet/runtime/issues/87767

Details to be added.

cc @SamMonoRT

[ghost]

Tagging subscribers to 'os-ios': @steveisok, @akoeplinger See info in area-owners.md if you want to be subscribed.

Issue Details

---

The task is to remove as much data from ICU files as possible and exchange ICU4C functions that are using this data with iOS native functions. Details to be added.

Author:	mkhamoyan
Assignees:	mkhamoyan
Labels:	`area-System.Globalization`, `os-ios`, `needs-author-action`
Milestone:	-

[ghost]

This issue has been marked needs-author-action and may be missing some important information.

[steveisok]

@mkhamoyan @filipnavara put together a good mapping that will likely get us a ways there.

https://github.com/dotnet/designs/pull/225#discussion_r647668983

[ghost]

This issue has been automatically marked no-recent-activity because it has not had any activity for 14 days. It will be closed if no further activity occurs within 14 more days. Any new comment (by anyone, not necessarily the author) will remove no-recent-activity.

[mkhamoyan]

Closing this as all tickets mentioned are already implemented.