[texhax] Upright digits in theorems

[William Adams]

On Jun 6, 2006, at 10:11 AM, Alex Scorpan wrote:

> What is the most elegant and robust way to arrange that digits and
> such always display upright inside a theorem-like environment, when
> the surrounding text is italic?  This is for a rather large-scale
> application.
>
> Our current approach is to make the various characters active inside
> the theorem environment and define them as \textup{...}.  However,
> that creates problems if anybody uses, say, a label with a digit or a
> \vskip or whatever.

Create a virtual italic font which contains the upright digits.

You can crib from the examples showing how to do old-style figures in  
the FontInst and Font Installation Guide documentation, also see Alan  
Hoenig's wonderful _TeX Unbound_

William

-- 
William Adams
senior graphic designer
Fry Communications



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