system-wide location for dictionary files and dictionary file name format

[Eike Rathke]

Hi,

On Wednesday, 2017-02-15 12:42:22 +0000, Caolán McNamara wrote:

> Yeah, "your mileage may vary" I guess kicks in there. The main "real-
> world" use case for BCP47 is to distinguish Cyrillic vs Latin Serbian.
> Couple of things. Firstly, you only get 8 letters for the part after x-
> so fr-x-moderne is valid bcp-47 while fr-x-classique is not (but fr-x-
> classiqu would be). If I add fr-x-classiqu.aff|dic then I see they are
> successfully added to the list of dictionaries available to
> LibreOffice.
> 
> Secondly, what the rest of LibreOffice does with this then is probably
> still a little unclear in parts. I see that in our format character
> dialog where we can directly enter bcp47 that I can successfully enter
> a tag like de-1996 but not fr-x-whatever so it appears the the private
> use tags are not allowed there for some additional reason I don't know
> (@erack?)

That's forced on purpose because it's unclear what should actually
happen with arbitrary invented privateuse tags. If those end up in
a document, loading them in another environment may likely be
unsupported or even map to a completely different thing, that's the
"private" in privateuse ... by definition of BCP47.

What we could do however is to check against already known on-the-fly
tags that were registered during loading dictionaries, and then *assume*
the system and user know what is done if it matches.

Best of course would be if someone registered proper French
classiq/moderne subtags with IANA instead of coming up with some x-...
mess. See http://www.langtag.net/register-new-subtag.html

  Eike

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