[Patch v3 6/14] [BZ #14095] update collation data from Unicode / ISO 14651

[Carlos O'Donell]

On 02/23/2018 02:21 AM, Mike FABIAN wrote:
> From 759aedd5ec485d9f792022e2432262ebaf4f74d8 Mon Sep 17 00:00:00 2001
> From: Mike FABIAN <mfabian@redhat.com>
> Date: Wed, 31 Jan 2018 06:18:47 +0100
> Subject: [PATCH 06/14] iso14651_t1_common: make the fourth level the codepoint
>  for characters which are ignorable on all 4 levels
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> Entries for characters which have “IGNORE” on all 4 levels like:
> 
>  <U0001> IGNORE;IGNORE;IGNORE;IGNORE % START OF HEADING (in ISO 6429)
> 
> are changed into:
> 
>  <U0001> IGNORE;IGNORE;IGNORE;<U0001> % START OF HEADING (in ISO 6429)
> 
> i.e. putting the code point of the character into the fourth level
> instead of “IGNORE”. Without that change, all such characters
> would compare equal which would make a wcscoll test case fail.
> It is better to have a clearly defined sort order even for characters
> like this so it is good to use the code point as a tie-break.
> 
> 	* localedata/locales/iso14651_t1_common: Use the code point of a character
> 	in the fourth collation level instead of IGNORE for all entries which
> 	have IGNORE on all 4 levels.
> ---
>  localedata/locales/iso14651_t1_common | 914 +++++++++++++++++-----------------
>  1 file changed, 457 insertions(+), 457 deletions(-)

LGTM.

I agree completely, the code point should be a tie-break, and I'm working the
same thing into the C.UTF-8 locale. I'll get back to that after this work and
hopefully you can't review that work for me :-)

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

-- 
Cheers,
Carlos.