ICU check returns false error result on int placeholder for plural

[mikhirev]

Describe the issue

The following translation causes the ICU format check error:

    "loadCountMoreParticipants": "{count, plural, one{Загрузить еще одного участника} few{Загрузить еще # участников} other{Загрузить еще # участников}}",
    "@loadCountMoreParticipants": {
        "type": "String",
        "placeholders": {
            "count": {
                "type": "int"
            }
        }
    },

It reports that count has a wrong type. Seems that int is not listed as numeric type.

I already tried

• I've read and searched the documentation.
• I've searched for similar filed issues in this repository.

Steps to reproduce the behavior

1. Go to https://hosted.weblate.org/translate/fluffychat/translations/ru/?checksum=ca5b10e8398959e6
2. See the failed check.

Expected behavior

No response

Screenshots

Exception traceback

How do you run Weblate?

weblate.org service

Weblate versions

No response

Weblate deploy checks

Additional context

No response

[nijel]

Perhaps because int is not defined in the ICU specification? You can't choose random type names and expect them to work. See https://unicode-org.github.io/icu/userguide/format_parse/messages/mf2.html

[mikhirev]

Perhaps because int is not defined in the ICU specification? You can't choose random type names and expect them to work.

Tell this to Flutter devs.

[mikhirev]

Maybe the int type should be translated to number somewhere in the Weblate ARB parser. I have no idea. But anyway I get a error on a syntactically correct translation. The only relevant information I was able to find is this:

The count placeholder in plural messages is always of type int.

[nijel]

Is the Flutter MessageFormat documented somewhere, especially the bits they chose to diverge from ICU? I doubt this is the only difference…

[mikhirev]

There is a JSON schema and a specification. However the latter seems incomplete, in particular it does not enumerate property types.

[nijel]

The actual reason for the check trigger is that the source string is not using it as plural: Load {count} more participants and the check expects the same form to be used in the translation.