Possible to add new precomposed characters for local language in Togo?

From: Mats Blakstad <mats.gbproject_at_gmail.com>
Date: Tue, 16 Feb 2016 00:32:49 +0100

I've worked to upload a keyboard for local languages in Togo to XKB
project, it is a combination keyboard based on French keyboard and extended
to make it possible to write all the local languages in Togo. However many
of the languages have several tones and even use combined tones. However
when I tried to update the composer to make it work it seems like the
composer only can give back a precomposed character and not a string with
combined characters.

I now wonder, generally, is it best to add new precomposed characters to
Unicode? Should there be a unicode symbol for each combination used? What
is best practise? I ask because I see some unicodes are precomposed
characters, I'm not sure why they are useful, but if they are maybe we also
should add these?

For reference here are the combinations needed, as you can see there are
many! I've tried to check over, I don't think there exists precomposed
characters for any of them.

ɛ / epsilon = U025B
<dead_acute> <U025B> : "ɛ́" LATIN SMALL LETTER
EPSILON WITH ACUTE
<dead_grave> <U025B> : "ɛ̀" LATIN SMALL LETTER
EPSILON WITH GRAVE
<dead_circumflex> <U025B> : "ɛ̂" LATIN SMALL LETTER EPSILON
WITH CIRCUMFLEX
<dead_caron> <U025B> : "ɛ̌" LATIN SMALL LETTER
EPSILON WITH CARON
<dead_macron> <U025B> : "ɛ̄" LATIN SMALL LETTER
EPSILON WITH MACRON
<dead_tilde> <U025B> : "ɛ̃" LATIN SMALL LETTER
EPSILON WITH TILDE
<dead_acute> <dead_tilde> <U025B> : "ɛ̃́" LATIN SMALL LETTER
EPSILON WITH TILDE AND ACUTE
<dead_grave> <dead_tilde> <U025B> : "ɛ̃̀" LATIN SMALL LETTER
EPSILON WITH TILDE AND GRAVE

Ɛ / EPSILON = U0190
<dead_acute> <U0190> : "Ɛ́" LATIN CAPITAL LETTER
EPSILON WITH ACUTE
<dead_grave> <U0190> : "Ɛ̀" LATIN CAPITAL LETTER
EPSILON WITH GRAVE
<dead_circumflex> <U0190> : "Ɛ̂" LATIN CAPITAL LETTER
EPSILON WITH CIRCUMFLEX
<dead_caron> <U0190> : "Ɛ̌" LATIN CAPITAL LETTER
EPSILON WITH CARON
<dead_macron> <U0190> : "Ɛ̄" LATIN CAPITAL LETTER
EPSILON WITH MACRON
<dead_tilde> <U0190> : "Ɛ̃" LATIN CAPITAL LETTER
EPSILON WITH TILDE
<dead_acute> <dead_tilde> <U0190> : "Ɛ̃́" LATIN CAPITAL LETTER
EPSILON WITH TILDE AND ACUTE
<dead_grave> <dead_tilde> <U0190> : "Ɛ̃̀" LATIN CAPITAL LETTER
EPSILON WITH TILDE AND GRAVE

ɩ / iota = U0269
<dead_acute> <U0269> : "ɩ́" LATIN SMALL LETTER IOTA
WITH ACUTE
<dead_grave> <U0269> : "ɩ̀" LATIN SMALL LETTER IOTA
WITH GRAVE
<dead_circumflex> <U0269> : "ɩ̂" LATIN SMALL LETTER IOTA
WITH CIRCUMFLEX
<dead_caron> <U0269> : "ɩ̌" LATIN SMALL LETTER IOTA
WITH CARON
<dead_macron> <U0269> : "ɩ̄" LATIN SMALL LETTER IOTA
WITH MACRON

ɩ / IOTA = U0196
<dead_acute> <U0196> : "Ɩ́" LATIN CAPITAL LETTER IOTA
WITH ACUTE
<dead_grave> <U0196> : "Ɩ̀" LATIN CAPITAL LETTER IOTA
WITH GRAVE
<dead_circumflex> <U0196> : "Ɩ̂" LATIN CAPITAL LETTER IOTA
WITH CIRCUMFLEX
<dead_caron> <U0196> : "Ɩ̌" LATIN CAPITAL LETTER IOTA
WITH CARON
<dead_macron> <U0196> : "Ɩ̄" LATIN CAPITAL LETTER
IOTA WITH MACRON

ɔ / open o = U0254
<dead_acute> <U0254> : "ɔ́" LATIN SMALL LETTER OPEN O
WITH ACUTE
<dead_grave> <U0254> : "ɔ̀" LATIN SMALL LETTER OPEN O
WITH GRAVE
<dead_circumflex> <U0254> : "ɔ̂" LATIN SMALL LETTER OPEN O
WITH CIRCUMFLEX
<dead_caron> <U0254> : "ɔ̌" LATIN SMALL LETTER OPEN O
WITH CARON
<dead_macron> <U0254> : "ɔ̄" LATIN SMALL LETTER OPEN
O WITH MACRON
<dead_tilde> <U0254> : "ɔ̃" LATIN SMALL LETTER OPEN O
WITH TILDE
<dead_acute> <dead_tilde> <U0254> : "ɔ̃́" LATIN SMALL LETTER OPEN O
WITH TILDE AND ACUTE
<dead_grave> <dead_tilde> <U0254> : "ɔ̃̀" LATIN SMALL LETTER OPEN O
WITH TILDE AND GRAVE

ɔ / OPEN O = U0186
<dead_acute> <U0186> : "Ɔ́" LATIN CAPITAL LETTER OPEN
O WITH ACUTE
<dead_grave> <U0186> : "Ɔ̀" LATIN CAPITAL LETTER OPEN
O WITH GRAVE
<dead_circumflex> <U0186> : "Ɔ̂" LATIN CAPITAL LETTER OPEN
O WITH CIRCUMFLEX
<dead_caron> <U0186> : "Ɔ̌" LATIN CAPITAL LETTER OPEN
O WITH CARON
<dead_macron> <U0186> : "Ɔ̄" LATIN CAPITAL LETTER
OPEN O WITH MACRON
<dead_tilde> <U0186> : "Ɔ̃" LATIN CAPITAL LETTER OPEN
O WITH TILDE
<dead_acute> <dead_tilde> <U0186> : "Ɔ̃́" LATIN CAPITAL LETTER OPEN
O WITH TILDE AND ACUTE
<dead_grave> <dead_tilde> <U0186> : "Ɔ̃̀" LATIN CAPITAL LETTER OPEN
O WITH TILDE AND GRAVE

ǝ / turned e = U01DD
<dead_acute> <U01DD> : "ǝ́" LATIN SMALL LETTER TURNED
E WITH ACUTE
<dead_grave> <U01DD> : "ǝ̀" LATIN SMALL LETTER TURNED
E WITH GRAVE
<dead_circumflex> <U01DD> : "ǝ̂" LATIN SMALL LETTER TURNED
E WITH CIRCUMFLEX
<dead_caron> <U01DD> : "ǝ̌" LATIN SMALL LETTER TURNED
E WITH CARON
<dead_macron> <U01DD> : "ǝ̄" LATIN SMALL LETTER
TURNED E WITH MACRON
<dead_tilde> <U01DD> : "ǝ̃" LATIN SMALL LETTER TURNED
E WITH TILDE
<dead_acute> <dead_tilde> <U01DD> : "ǝ̃́" LATIN SMALL LETTER TURNED
E WITH TILDE AND ACUTE
<dead_grave> <dead_tilde> <U01DD> : "ǝ̃̀" LATIN SMALL LETTER TURNED
E WITH TILDE AND GRAVE

Ǝ / TURNED E = U018E
<dead_acute> <U018E> : "Ǝ́" LATIN CAPITAL LETTER
TURNED E WITH ACUTE
<dead_grave> <U018E> : "Ǝ̀" LATIN CAPITAL LETTER
TURNED E WITH GRAVE
<dead_circumflex> <U018E> : "Ǝ̂" LATIN CAPITAL LETTER
TURNED E WITH CIRCUMFLEX
<dead_caron> <U018E> : "Ǝ̌" LATIN CAPITAL LETTER
TURNED E WITH CARON
<dead_macron> <U018E> : "Ǝ̄" LATIN CAPITAL LETTER
TURNED E WITH MACRON
<dead_tilde> <U018E> : "Ǝ̃" LATIN CAPITAL LETTER
TURNED E WITH TILDE
<dead_acute> <dead_tilde> <U018E> : "Ǝ̃́" LATIN CAPITAL LETTER
TURNED E WITH TILDE AND ACUTE
<dead_grave> <dead_tilde> <U018E> : "Ǝ̃̀" LATIN CAPITAL LETTER
TURNED E WITH TILDE AND GRAVE

ʋ / v with hook = U028B
<dead_acute> <U028B> : "ʋ́" LATIN SMALL LETTER V WITH
HOOK WITH ACUTE
<dead_grave> <U028B> : "ʋ̀" LATIN SMALL LETTER V WITH
HOOK WITH GRAVE
<dead_circumflex> <U028B> : "ʋ̂" LATIN SMALL LETTER V WITH
HOOK WITH CIRCUMFLEX
<dead_caron> <U028B> : "ʋ̌" LATIN SMALL LETTER V WITH
HOOK WITH CARON
<dead_macron> <U028B> : "ʋ̄" LATIN SMALL LETTER V
WITH HOOK WITH MACRON

Ʋ / V WITH HOOK = U01B2
<dead_acute> <U01B2> : "Ʋ́" LATIN CAPITAL LETTER V
WITH HOOK WITH ACUTE
<dead_grave> <U01B2> : "Ʋ̀" LATIN CAPITAL LETTER V
WITH HOOK WITH GRAVE
<dead_circumflex> <U01B2> : "Ʋ̂" LATIN CAPITAL LETTER V
WITH HOOK WITH CIRCUMFLEX
<dead_caron> <U01B2> : "Ʋ̌" LATIN CAPITAL LETTER V
WITH HOOK WITH CARON
<dead_macron> <U01B2> : "Ʋ̄" LATIN CAPITAL LETTER V
WITH HOOK WITH MACRON

ʊ / upsilon = U028A
<dead_acute> <U028A> : "ʊ́" LATIN SMALL LETTER
UPSILON WITH ACUTE
<dead_grave> <U028A> : "ʊ̀" LATIN SMALL LETTER
UPSILONK WITH GRAVE
<dead_circumflex> <U028A> : "ʊ̂" LATIN SMALL LETTER UPSILON
WITH CIRCUMFLEX
<dead_caron> <U028A> : "ʊ̌" LATIN SMALL LETTER
UPSILON WITH CARON
<dead_macron> <U028A> : "ʊ̄" LATIN SMALL LETTER
UPSILON WITH MACRON

Ʊ / UPSILON = U01B1
<dead_acute> <U01B1> : "Ʊ́" LATIN CAPITAL LETTER
UPSILON WITH ACUTE
<dead_grave> <U01B1> : "Ʊ̀" LATIN CAPITAL LETTER
UPSILONK WITH GRAVE
<dead_circumflex> <U01B1> : "Ʊ̂" LATIN CAPITAL LETTER
UPSILON WITH CIRCUMFLEX
<dead_caron> <U01B1> : "Ʊ̌" LATIN CAPITAL LETTER
UPSILON WITH CARON
<dead_macron> <U01B1> : "Ʊ̄" LATIN CAPITAL LETTER
UPSILON WITH MACRON

a
<dead_acute> <dead_tilde> <a> : "ã́" LATIN SMALL LETTER A WITH
TILDE AND ACUTE
<dead_grave> <dead_tilde> <a> : "ã̀" LATIN SMALL LETTER A WITH
TILDE AND GRAVE

A
<dead_acute> <dead_tilde> <A> : "Ã́" LATIN CAPITAL LETTER A WITH
TILDE AND ACUTE
<dead_grave> <dead_tilde> <A> : "Ã̀" LATIN CAPITAL LETTER A WITH
TILDE AND GRAVE

e
<dead_acute> <dead_tilde> <e> : "ẽ́" LATIN SMALL LETTER E WITH
TILDE AND ACUTE
<dead_grave> <dead_tilde> <e> : "ẽ̀" LATIN SMALL LETTER E WITH
TILDE AND GRAVE

E
<dead_acute> <dead_tilde> <E> : "Ẽ́" LATIN CAPITAL LETTER E WITH
TILDE AND ACUTE
<dead_grave> <dead_tilde> <E> : "Ẽ̀" LATIN CAPITAL LETTER E WITH
TILDE AND GRAVE

i
<dead_acute> <dead_tilde> <i> : "ĩ́" LATIN SMALL LETTER I WITH
TILDE AND ACUTE
<dead_grave> <dead_tilde> <i> : "ĩ̀" LATIN SMALL LETTER I WITH
TILDE AND GRAVE

I
<dead_acute> <dead_tilde> <I> : "Ĩ́" LATIN CAPITAL LETTER I WITH
TILDE AND ACUTE
<dead_grave> <dead_tilde> <I> : "Ĩ̀" LATIN CAPITAL LETTER I WITH
TILDE AND GRAVE

o
<dead_grave> <dead_tilde> <o> : "õ̀" LATIN SMALL LETTER O WITH
TILDE AND GRAVE

O
<dead_grave> <dead_tilde> <O> : "Õ̀" LATIN CAPITAL LETTER O WITH
TILDE AND GRAVE

u
<dead_grave> <dead_tilde> <u> : "ũ̀" LATIN SMALL LETTER U WITH
TILDE AND GRAVE

U
<dead_grave> <dead_tilde> <U> : "Ũ̀" LATIN CAPITAL LETTER U WITH
TILDE AND GRAVE

m
<dead_grave> <m> : "m̀" LATIN SMALL LETTER M WITH
GRAVE

M
<dead_grave> <M> : "M̀" LATIN CAPITAL LETTER M WITH
GRAVE

ŋ / eng = U014B
<dead_acute> <eng> : "ŋ́" LATIN SMALL LETTER ENG WITH ACUTE
<dead_grave> <eng> : "ŋ̀" LATIN SMALL LETTER ENG WITH GRAVE

ŋ / ENG = U014A
<dead_acute> <ENG> : "Ŋ́" LATIN CAPITAL LETTER ENG WITH ACUTE
<dead_grave> <ENG> : "Ŋ̀" LATIN CAPITAL LETTER ENG WITH GRAVE
Received on Mon Feb 15 2016 - 22:10:22 CST

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