[Pkg-fonts-devel] Bug#573125: otf-ipafont provides ttf
kohda at pm.tokushima-u.ac.jp
Mon Mar 15 12:35:45 UTC 2010
On Sat, 13 Mar 2010 21:42:54 +0900, Hideki Yamane wrote:
> On Tue, 09 Mar 2010 23:07:58 +0900 (JST)
> Atsuhito Kohda <kohda at pm.tokushima-u.ac.jp> wrote:
>> With XeTeX, OpenType fonts support vertical typesetting very well
>> but TrueType fonts don't. On the contrary, OpenType fonts make
>> XeTeX/LuaTeX to run very slowly but TrueType fonts make them
>> to run fast.
> It seems the problem in XeTeX/LuaTex, we cannot identify whether it is
> OpenType font or not with just its extensions. As I said, OpenType spec
> allows us to use .ttf extensions for OpenType font.
> Anyway, I want to deal with this (yes, sure). But add some tricks to detect
> OpenType (I don't know how to do ;) to those TeX implementations is better way
> to solve this. How about this?
I'm not sure but don't you think that TeX detects *.otf as
OpenType and *.ttf as TrueType fonts? If so, it is not
what I wanted to explain.
If IPA ver.3 and ver.2 use the same ipam.ttf then,
on a system with IPA ver.3, TeX will output vertical
typesettings correctly but will run slowly.
On the other hand, on a system with IPA ver.2,
TeX will fail to output vertical typesettings correctly
but will run rapidly.
I think this is unreasonable and confusing.
If I misunderstand you, I'm very sorry.
Best regards, 2010-3-15(Mon)
Debian Developer - much more I18N of Debian
Atsuhito Kohda <kohda AT debian.org>
Department of Math., Univ. of Tokushima
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