At 10:58 -0700 2003-08-11, Peter Kirk wrote:
On 11/08/2003 06:59, Jon Hanna wrote:

There are only two theoretical problems that I can see here, the first is
that a whitespace character other than space gets converted to space by
attribute value normalisation, and that this changes the meaning of the text
in some way. This could only occur if the combining character were the first
character in a line of text, which is quite a nonsensical construct to begin
with.

Not at all! Imagine a tutorial on a language, which might well list the accents used, in a format like this:

` (grave accent) is used with a, e and o, and indicates more open pronunciation
^ (circumflex accent) is used with any vowel, and indicates lengthening


So far so good, but when I get to an accent with no predefined spacing variant, I have a problem!

It has been explained the mechanism for doing this, and it has been explained that if it is not implemented correctly you should yell at the implementors.


In Mac OS X, for instance, the horizontal spacing seems to work all right for many accents, but they seem to prefer to rest just above the baseline. I'll report this as a rendering bug.
--
Michael Everson * * Everson Typography * * http://www.evertype.com




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