#30439: Translations issues on Django upgrade due to unexpected changes in
plural
forms
-------------------------------------+-------------------------------------
Reporter: Michal Čihař | Owner: Claude
| Paroz
Type: Bug | Status: closed
Component: | Version: 2.2
Internationalization |
Severity: Normal | Resolution: fixed
Keywords: | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by mhozza):
Replying to [comment:5 Michal Čihař]:
> It would be necessary to avoid merging of the catalogs and perform
lookup over several catalogs. With merging, the lookup in the catalog can
not respect plural equation defined in the file. With Czech language I
believe this is issue only because of a bug in the plural form (see
below), but there are language were several different plural forms are
widely used (for example
[https://hosted.weblate.org/languages/lv/#information Latvian], where they
have same number of plurals, but reverse ordering of the strings in one of
them).
>
>
> Going back to Czech locale, the plural equation for Czech (which you
apparently got from Transifex) doesn't make sense at all, because it
defines 4 plural forms, but it never evaluates to 2 because `n % 1` is
always 0:
>
> `(n == 1 && n % 1 == 0) ? 0 : (n >= 2 && n <= 4 && n % 1 == 0) ? 1: (n %
1 != 0 ) ? 2 : 3`
>
This is actually not true. `n%1 != 0` for decimal numbers. I believe Czech
has a special plural form for decimal numbers, similarly to Slovak, so the
formula is correct.
> So the correct fix here would be revert to original formula and blame
Transifex to fix this. Probably some damage was done to the plurals
translation meanwhile...
>
> PS: I've seen such messed up plurals already in several projects which
have decided to migrate from Transifex to [https://weblate.org/ Weblate]
(which I develop), not sure if anybody has reported this to them.
--
Ticket URL: <https://code.djangoproject.com/ticket/30439#comment:50>
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