Re: Yoruba Keyboard

From: Philippe Verdy (
Date: Wed May 05 2004 - 18:28:36 CDT

----- Original Message -----
From: "African Oracle" <>
To: <>
Sent: Wednesday, May 05, 2004 8:42 PM
Subject: Yoruba Keyboard

> This mail is written with the Yoruba Keyboard that was rolled out yetserday.
> Please just look at the issue raised earlier raised.
> áéíẹ́ọ́ú
> Looking at the above it is obvious that the acute on top of the e and o with
> dot below is a bit too high almost to the point of looking like a cedilla
> under E.
> In transit the acute and the grave could be removed by just putting the
> cursor in between ẹ́ and ọ́ because ther are combined in a way that is not
> binding.

And like this:

Tip: compose a <combining dot below> after the precomposed <e-acute>, <o-acute>,
<E-acute> and <O-acute>.

Note that theses forms are canonically equivalent, but are rendered differently,
meaning that renderer do not always change strings to a normalized form before
computing the layout of glyphs. If the input strings were normalized, both would
be rendered identically.

Note that XML string processing (as well as HTML and SGML) must not perform
normalization by default on their documents, unless specifically instructed to
do so. XML does not recognize by default canonical equivalences and clearly
identify those strings as distincts because they contain distinct code points.
For XML processing, the level of parsing is the single code point, not the
combining sequence or the grapheme cluster.

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