[XeTeX] Active characters

[Will Robertson]

On 24/12/2007, at 2:46 AM, John Was wrote:

> Should there be some preceding code that makes \def^^^^  
> comprehensible to XeTeX?

Not really.
Here's an example that does work:

\documentclass{article}
\begin{document}
\catcode`\<=\active
\def<{lt}
<
\end{document}

If you can reproduce the error, send through an example like this and  
it should become easier to see where the problem is.

Cheers,
Will
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