[Rd] Region subtag in package 'Language' field

Kurt Hornik Kurt.Hornik at wu.ac.at
Mon Dec 18 20:32:35 CET 2017

>>>>> Jeroen Ooms writes:

All standard (not private use or grandfathered) IETF language tags
should be fine.  What WRE says about ISO-639 codes is meant to explain
the language subtags.


> I am looking for the appropriate field to let package authors to
> declare the pkg documentation language for spell checkers. The most
> important case is to specify a preference between "en-US" or "en-GB"
> which can be used by the hunspell or spelling pkg to select the
> appropriate dictionary.

> WRE defines the "Language" field for documentation language, but from
> the current description it seems restricted to 2 or 3 letter ISO-639
> codes such as "en" or "eng". WRE also mentions rfc-5646, which refers
> to ISO 3166-1 for region/country subtags but it is unclear if these
> are allowed in the field?

> Spell checking libraries (e.g. myspell/hunspell) typically use
> locale-like language names to identify the appropriate dictionary such
> as "en_GB" or "de_AT", see for example [1,2]. Merely specifying "en"
> or "de" is ambiguous to the spell checker. I was wondering if the WRE
> definition of the "Language" field could allow for this?

> [1] https://apps.fedoraproject.org/packages/hunspell-en/contents/
> [2] https://packages.debian.org/stretch/hunspell-en-gb

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