[Chicken-users] Is there any way programmatically to determine a macro?

[Lam Luu]

Hello all!
Given an S-Expression, (here is an example), is there any way to write a 
script to determine whether or not that expression is a procedure-call 
or a macro? If it is a macro call, is there anyway to expand it back to 
the lowest level of special form possible?
Currently, the only way I know if is using expand-syntax procedure, but 
that seems to be for interactive use only.
Thank you,
Lam Luu