Am 12.06.2011 um 12:57 schrieb Hans Hagen:

On 11-6-2011 5:12, Wolfgang Schuster wrote:

Nice but i suggest to use \si as name for the command.

I don't like that one ... we're not exclusively dealing with si units

What a lame excuse, “si” is easier to remember than “su” and even

though the code isn’t limited to si units this isn’t a good reason

to avoid the name.

and it's also a language tag.

Not for ConTeXt:

\starttext

\show\si

\stoptext

> \si=undefined.

Collision between language tags a context commands do exist since

a long time, e.g. \sl or \it.

What’s still missing is a reimplementation of the \digits macro where you have more control about the decimal and thousand separator and a few more options.

I have a scanner for that as well (needs to be integrated)