[XeTeX] 00F5 low line - problems?

[Will Robertson]

On 21/08/2008, at 5:00 PM, Ulrike Fischer wrote:

> Partly. I know that underscore is a LaTeX package, but it is not very
> LaTeX-specific: the central parts of the code would probably works  
> also
> with other formats.

Yep, but it does to some lengths to deal with working around various  
LaTeX constructs.

> But I don't know if underscore works properly with
> an unicode orientated engine like xetex and with unicode encoded  
> fonts.

Oh, i see what you mean. Unless I'm mistaken, the underscore is taken  
from the ascii range even in unicode, so there should be no problem:

\documentclass{article}
\usepackage{xltxtra,underscore}
\setmainfont{Georgia}
\begin{document}
a_b
\end{document}

Hmmm, I see that unicode has a number of underscore-like characters  
such as "non-spacing underscore" and "double underscore". So I suppose  
there's scope for extending the "underscore.sty"-like functionality to  
select these instead of the stock standard ascii _ .

Cheers,
Will
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