[pre-v8] - Understanding MicroStation configuration files

Hello, 

This is my first post on Be Communities and I am very new to learning MicroStation, so please forgive me if my question seems silly or very elementary. 

I have a task at work that has me looking into the configuration files of MicroStation, specifically mslocal.cfg and msconfig.cfg. Right now I am only trying to dissect and understand what these files do and how to interpret them. I was wondering if someone can tell me what language/syntax these files are written in so I can cross reference this and get a better understanding of what is going on? For example, I'd like to interpret what this little snippet does within the msconfig.cfg file:

%level 0

%if defined(_macintosh)
%if exists ($(_macsyspref)ustation.cfg)
%include $(_macsyspref)ustation.cfg
%endif
%endif

%if defined (_os2)
MS_PRINTSRVA : ${_ROOTDIR}/PRINTSRV.EXE
%endif

Any help or direction regarding this is highly appreciated. 

Regards,

Cory