Name clashes in ppml..

[brad@cs.adelaide.edu.au (Bradley Alexander)]

Hello,
      I've decided to start on the creation of a Pretty Printer 
for the language which I'm working on (Adl). I'm having problems
with the ppml parser..

I define a set of precedence functions at the start of my ppml
program. The one that causes trouble starts...

function bop_prec is
      bop_prec(*exp where *exp in {or}) = 11;
      bop_prec(*exp where *exp in {and}) = 10;
                  .
                  .
                  .
end  bop_prec;

The problem is occuring with the "or" and "and" operators (which 
I have defined as singletons in the syntax of my language Adl).

I tried to fix the problem by defining a couple of new phyla:

phyla
   OROP = or;
   ANDOP = and;

function bop_prec is
  bop_prec(*exp where *exp in OROP) = 11;
            .
            .


But this only suceeded in moving the problem to the definition
of the phlya. Is there some way of avoiding this problem without 
changing my metal definition (an escape character string perhaps)?

Thanks,

Brad Alexander