Translations - plural forms

[wikiyu]

Is your feature request related to a problem? Please describe.

There is a lot of languages with more than two forms - singular and plural. For example in polish (and most of slavic languages) we have
1 comment - 1 komentarz
2 comments - 2 komentarze
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here we have two different forms of plurals. But ... there is much more fun in this area.
https://doc.qt.io/archives/qq/qq19-plurals.html - in QT library docs is quite nice example

Describe the solution you'd like

Best method that i even know about translations with support of many plural (and null) forms is gettext https://www.gnu.org/software/gettext/
with poEditor - tool to make very fast translations, and even online tool. As i found there is also javascript gettext implementation.
https://github.com/guillaumepotier/gettext.js/

Describe alternatives you've considered

Additional context

https://www.gnu.org/software/gettext/manual/gettext.html#Translating-plural-forms

[devmount]

Thank you for this request. This add-ons internationalization is built on vue-i18n, which has an option for custom pluralization:
https://kazupon.github.io/vue-i18n/guide/pluralization.html#custom-pluralization

So you just have to pass an optional pluralizationRules object into VueI18n constructor options.
@wikiyu Can you formulate these rules for Polish and create such an object?

[devmount]

Are you still interested in this feature request? If yes, I need some help creating the corresponding object to implement the special pluralization. @wikiyu @dfoltynski ?

[devmount]

@wikiyu Thanks to @arndissler, we now have Polish pluralization rules implemented. You can now translate l.6 of pl/messages.json like this: "Konto | Konta | Kont"

Would be awesome if you find some time to translate Polish to the latest state. You can use our localization tool for this (see #135). Wielkie dzięki!