[Bug localedata/14095] Review / update collation data from Unicode / ISO 14651

[maiku.fabian at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=14095

--- Comment #9 from Mike FABIAN <maiku.fabian at gmail dot com> ---
(In reply to joseph@codesourcery.com from comment #8)
> I expect reviewing the sources of and past changes to collation data, and 
> writing suitable scripts to reproduce it from old upstream data / 
> regenerate it from new upstream data, taking due account of any deliberate 
> differences, to be substantially more work than the update of other data 
> from Unicode was.

I am actually working on an update, but it is indeed not easy at all
and a lot of work.

https://www.iso.org/standard/68309.html

has a newer version of ISO/IEC 14651:2016

downloadable from:

http://standards.iso.org/ittf/PubliclyAvailableStandards/index.html

And one can download this:

http://standards.iso.org/ittf/PubliclyAvailableStandards/c068309_ISO_IEC_14651_2016_Electronic_inserts.zip

Which contains a file named

ISO14651_2015_TABLE1_en.txt

which can be used as an update for our 
localedata/locales/iso14651_t1_common file 

But the collation symbols in the new file have changed a lot
and many adaptations in LC_COLLATE in many of our locales
are necessary, many of them a bit complicated.

I think this is the right way to go though, and I made
good progress so far, so I am quite confident now that 
I can do this.

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