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<blockquote cite="mid:mailman.2480.1202717499.3672.xetex@tug.org"
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<pre wrap="">On 09/02/2008, at 9:39 PM, Till Rettig wrote:
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<pre wrap="">I tried recently to set a document with Linux Libertine (O) that
should
have old style numbers. Apparently this caused the use of normal old
style numbers also for superscript numbers (e.g. for footnotes).
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<pre wrap=""><!---->
I would argue that this is a bug in the font, but there's a chance
it's XeTeX's fault instead (Jonathan?). Take a look how the font is
interpreting the features:
\documentclass{article}
\usepackage{fontspec}
\begin{document}
\fontspec{Linux Libertine O}
[test 123]
\fontspec[Numbers=OldStyle]{Linux Libertine O}
[test 123]
\fontspec[VerticalPosition=Superior]{Linux Libertine O}
[test 123]
\fontspec[Numbers=OldStyle,VerticalPosition=Superior]{Linux Libertine O}
[test 123]
\end{document}
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This shows it really clearly and what I was suspecting already: old
style numbers are not mapped to normal superscript numbers. I will
report it. But about the xetex side: Is there an easy way to have an
override directly in the code or is it more complicated to implement
this? I mean exactly what you mention that overrides the font settings
so that direction rules over variant forms.<br>
<br>
Greetings<br>
Till<br>
<blockquote cite="mid:mailman.2480.1202717499.3672.xetex@tug.org"
type="cite">
<pre wrap="">
Or if you prefer in Plain XeTeX:
\font\x="Linux Libertine O:+onum" at 10pt\x [test 123]
\font\x="Linux Libertine O:+sups" at 10pt\x [test 123]
\font\x="Linux Libertine O:+onum,+sups" at 10pt\x [test 123]
\bye
Perhaps you could report this to the font maintainers? I believe that
the sups feature should override the onum feature...
I'm not sure if there's much that xltxtra can do about this, besides
adding a feature "\scriptfontfeatures{}" that overrides the features
of the main text font. This isn't such a bad idea, actually. I'll work
on it at some stage...
Cheers,
Will
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