Date: Tue Jul 15 2003 - 10:06:20 EDT
William Overington wrote on 07/15/2003 07:22:22 AM:
> No, the Private Use Area codes would not be used for interchange, only
> locally for producing an elegant display in such applications as chose to
> use them. Other applications could ignore their existence.
Then why do you persist in public discussion of suggested codepoints for
such purposes? If it is for local, proprietary use internal to some
implementation, then the only one who needs to know, think or care about
these codepoints is the person creating that implementation.
> Publishing a list of Private Use Area code points would
have absolutely no purpose at all.
> mean that such
> display could be produced using a choice of fonts from various font
> using the same software
Now you are talking interchange. Interchange means more than just person A
sends a document to person B. It means that person A's document works with
person B's software using person C's font. (An alternate term that is often
used, interoperate, makes this clearer.)
> I feel that an important thing to remember is the dividing line between
> is in Unicode and what is in particular advanced format font technology
And best practice for advanced format font technologies eschews PUA
codepoints for glyph processing. You've been told that several times by
people who have expertise in advanced font technologies, an area in which
you are not deeply knowledgable or experienced, by your own admission.
> yet they are not suitable for platforms such as Windows 95 and
> Windows 98, whereas a eutocode typography file approach would be suitable
> for those platforms and for various other platforms.
Wm, if someone wanted, they could create an advanced font technology to
work on DOS, but why bother? Who's going to create all the new software
that works with that technology, and make it to work within the limitations
of a DOS system? Your idea is at best a mental exercise, and even if you or
someone else built an implementation, what is not needed is some public
agreement on PUA codepoints for use in glyph processing.
> I am hoping that the eutocode typography file approach with display
> added into the Private Use Area will be a useful technique in many areas,
> including, yet not limited to, interactive broadcasting.
If your ideas were to get used in some area like interactive broadcasting,
the use of PUA codepoints for rendering purposes would be relevant to that
technology, and out of scope for discussion on this list.
Non-Roman Script Initiative, SIL International
7500 W. Camp Wisdom Rd., Dallas, TX 75236, USA
Tel: +1 972 708 7485
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