Adding a custom collation

l10n
#1

Hello list members,

I am trying to add a collation tailoring for my language (Church
Slavic, ISO 639 code "cu"). Could someone please help clarify the
process? I looked on this page:
https://wiki.documentfoundation.org/LibreOffice_Localization_Guide/Advanced_Source_Code_Modifications#Collation_.28correct_alphabetic_order_for_a_given_locale.29

and it has a link to a document Collation in OpenOffice 2.0, but this
link is dead.

Pulling that link up using the WayBackMachine gives me this page:
http://web.archive.org/web/20130708143049/http://www.khmeros.info/tools/Collation_in_ooo_2.0.html

But the instructions seem to be a bit outdated. Anyway, here's what I've done:

I've added the rules to
i18npool/source/collator/data/cu_charset.txt

But the file:
i18npool/source/collator/data/collator_data.map
does not seem to exist. Is there a different file where I have to add the
get_cu_charset;
line?

I've added the relevant line:
<Collator unoid="charset" default="true"/>

to the i18npool/source/localedata/data/cu_RU.xml,

which is my new Church Slavic (Russia) locale.

I've compiled, but, while Church Slavic does now appear in the list of
languages, the collation does not appear to be supported. (I tested by
using the Sort functionality in Calc).

Any help is appreciated!

Cordially,

Aleksandr