[ic] Accessing modifer value in perl

[interchange-users@icdevgroup.org (Ron Phipps)]

Hello,

I'm trying to access the value of a modifier from within a perl sub.  I
know that I can access the modifier like this in ITL:

[item-modifier modifiername]

How would I do the same from within a perl sub?  More importantly can I
do this from within a sub called from Common Adjust?

Thanks,
-Ron