[XeTeX] linux libertine and number

[Philip Taylor (Webmaster, Ret'd)]

Ulrike Fischer wrote:

> It is a very bad idea to make numbers active and to define them in
> this way. As an example try to uncomment one of the last lines:

Within a restricted universe of discourse, it is perfectly reasonable
to make digits active; if the author then chooses to forget that that
is what he/she has done, and use them as per your example, then /caveat
emptor/ must surely apply.

Philip Taylor