From: Rajeev J Sebastian (rajeev_jsv@dinamis.com)
Date: Wed Jun 01 2005 - 20:28:39 CDT
On Wednesday 01 June 2005 5:24 pm, Hans Aberg wrote:
> At 17:44 +0100 2005/06/01, Jon Hanna wrote:
> >>If one so wants, one can add all the glyphs one wants, adding a
> >>property field saying that it is a rendering character.
> >
> >No, we cannot. That would completely change the scope and purpose of
> > Unicode.
>
> It would change the scope of the current character set in that respect.
>
> So what do you feel is the purpose of Unicode? -- In the context the
> quote above is taken from, I am speaking about glyphs that are used
> to give proper rendering to semantic characters.
I may not fully understand this thread, but what you are saying, has already
been implemented: TrueType Open and OpenType Font handle ligatures (for any
language) by tagging a ligature glyph with the semantic (unicode) codepoints.
So the ffi ligature is tagged with "f+f+i". Similiar things are done for
placement of diacritics, and also optionally using positioning instead of
precomposing the ligatures into unencoded positions in the font file.
Rajeev J Sebastian
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