From: Doug Ewell (doug@ewellic.org)
Date: Sun Nov 23 2008 - 13:08:55 CST
Karl Pentzlin <karl dash pentzlin at acssoft dot de> wrote:
> Thus, custom-fitting is not "necessary" for virtually all
> combinations. It is a fine tuning for typographical quality, the
> necessity of which depends how much typographical quality the user
> needs in comparison to the quality which is accomplished by the
> algorithm, which in turn depends of the complexity of that algorithm
> itself.
I agree with that.
I took your original post about <04E9, 0304> as saying that these
combinations needed to look reasonably legible, and for that, it should
be possible to develop general algorithms that place floating diacritics
like macrons in a reasonably legible location for a wide variety of base
letters. If, instead, we are talking about fine typography, then much
more sophisticated algorithms (or precomposed glyphs) are certainly
required.
Many of the most widely available fonts don't even have glyph support
for combining marks such as U+0304. I sometimes wonder if one reason
for this is that font vendors and designers, knowing they don't have the
resources (or priorities) to provide fine-typography support for
languages like Orok, hear the "horrified" complaints on mailing lists
and newsgroups and such about the inadequacy of solutions that offer
minimal legibility, and decide it would be safer not to attempt to
support these combinations at all.
-- Doug Ewell * Thornton, Colorado, USA * RFC 4645 * UTN #14 http://www.ewellic.org http://www1.ietf.org/html.charters/ltru-charter.html http://www.alvestrand.no/mailman/listinfo/ietf-languages ˆ
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