collation tailoring using before

[Markus Scherer via CLDR-Users]

On Wed, Aug 9, 2017 at 2:23 AM, Martin Hosken via CLDR-Users <
cldr-users at unicode.org> wrote:

> I am trying to tailor (for the sake of argument) \u0300 to be primary
> ignorable and have a secondary collation key less than that of a primary
> character (a).
> [...]
> I'm wondering how I can get \u0300 [0000.0400.0500].
>

You can't, if you want to build a well-formed Collation Element Table:
http://www.unicode.org/reports/tr10/#WF2

markus
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