[plt-scheme] Checking to see if some variable is an mzscheme primitive or not?

On Fri, 18 Feb 2005, Danny Yoo wrote:

> I'm trying to write a function that will help me trace down the names of
> mzscheme primitives in a program, and I've written the following module:

[code cut]

> I know I shouldn't really be abusing exceptions like this, but this is
> something I need for a silly preprocessor program.  I couldn't find
> equivalent functionality in mzlib yet, but I'm just double checking to
> make sure I haven't reinvented the wheel.

Ok, I didn't look closely enough.  I just saw NAMESPACE-MAPPED-SYMBOLS,
which should do the trick for me.  Sorry about that!