Closed Bug 1321298 Opened 5 years ago Closed 4 years ago

migration lacks cldr plural forms for various Firefox localizations


(Localization Infrastructure and Tools :: Fluent Migration, defect)

Not set


(Not tracked)



(Reporter: Pike, Unassigned)



In order to be able to successfully run migrations on all our languages, we'll need to pad languages that cldr doesn't have.

We probably also need such a bug for our runtime js API, gandalf?

Missing are:

ach, an, cak, csb, gn, hto, kok, lij, ltg, mai, oc, pbb, qvi, rw, sat, son, trs, tsz

That's way more than I expected.
Porting those CLDR plural forms to our JS API is not going to be very helpful since we're about to switch to Intl.PluralRules.

We should:

 * write a patch against Gecko's CLDR
 * upstream it
 * use it to patch our JS API

If you point me to where we take plural forms from now, I'll take this bug.
So we use "something" in gecko, I'm not sure to which extent those are vetted, and they also don't make any statement about the floats behavior.
ach, an, cak, gn, hto, kok, lij, mai, oc, sat, son, tsz - pluralRule: 1
csb - pluralRule: 9
ltg - pluralRule: 3

pbb, qvi, rw, trs - ?

so, we'd need to add csb and ltg to cldr. Not sure about the other 4 since I don't see them on this list.
There are two tasks here which I'd like to split up:

  a) supporting these locales in migrations so that we don't lose good translations which are currently stored in legacy files,
  b) supporting these locales in the runtime so that we can show theses good migrated translations to the users.

I would like to make this bug specifically about a).  We can take care of b) at a later time. It's not related to the migration module and it has a) as a dependency.

To fix a) we could patch our copy of the CLDR data in Would that be enough?
When we fix this, we should also fix the typo in; this code should read:

    self.plural_categories = get_plural_categories('en')
(In reply to Axel Hecht [:Pike] from comment #0)

> ach, an, cak, csb, gn, hto, kok, lij, ltg, mai, oc, pbb, qvi, rw, sat, son,
> trs, tsz

I ran the migration from bug 1411012 on all locales I cloned using the following all-locales file:

Only later did I realize that some locales are missing from it, namely:

    csb, hto, kok, pbb, qvi, rw, sat

I found one more for which our copy of CLDR doesn't have plural categories:


Lastly, the following two errored out during the annotation phase (bug 1426665); I don't know if plurals would work for them:

    ne-NP, si
Bug 1432163 added missing plurals to compare-locales and bug 1415844 switched python-fluent's migration to only use the data stored in compare-locales rather than a copy of the CLDR data. Marking as fixed.
Closed: 4 years ago
Resolution: --- → FIXED
No longer blocks: fluent.migrate
Component: Python Library → Fluent Migration
Product: L20n → Localization Infrastructure and Tools
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