--- Karl Ove Hufthammer <[EMAIL PROTECTED]> wrote: >
Andrew Dunbar <[EMAIL PROTECTED]> wrote in
>
[EMAIL PROTECTED]:">news:[EMAIL PROTECTED]:
> 
> > Normalization Form C means "fully composed"
> > characters
> 
> Well, not always (Unicode 3.2), but you're basically
> right.
> 
> > - I think fonts are currently rare that
> > would support all characters we need fully
> composed.
> 
> Then the renderer should superimpose glyphs. Exactly
> how the
> abstract characters are written (pre- or decomposed)
> isn't
> important. E.g. if a font doesn't have an '�' glyph,
> but an 'a'
> and a '�' glyph, the '�' character could be
> displayed by
> superimposing these two glyphs.

I was thinking about this too and I think it would be
worth the work to support accented etc glyphs in an
abstract way.  So we'd do as you suggest and also
vice versa: if the document specified 'a' + '�' but
the font has no combining characters but does have
'�'.

> > I would think at this stage that a "compatibility"
> > normalization would be more suitable at this early
> > stage
> 
> No, compatibility normalization *loses* important
> information.

If we agree that the "abstract character" model above
is doable then I agree with you.  It's a bit more work
but I think not too hard and the benefits are good.

Andrew Dunbar.

> -- 
> Karl Ove Hufthammer 

=====
http://linguaphile.sourceforge.net http://www.abisource.com

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