Re: specifying precedences

Re: an extensible precedence mechanism:

AsTeR used a predefined collection of precedence levels but allowed the
precedence to be extensible by providing the following calls:

(define-math-precedence :operator operator :precedence same-as xxx)
where xx was already defined
and also
:precedence greater-than xxx,
less-than xxx etc.

This way, the extension facility we discussed in an earlier message thread
that handled the new notation introduced by user defined macros could
arbitrarily extend the precedence system. 

-- 
Best Regards,
--raman

      Adobe Systems                 Tel: 1 (415) 962 3945   (B-1 115)
      Advanced Technology Group     Fax: 1 (415) 962 6063 
      (E 1-160) 1585 Charleston Road       Email: raman@adobe.com 
      Mountain View, CA 94039 -7900  raman@cs.cornell.edu
      http://www-atg/People/Raman.html (Internal To Adobe)
      http://www.cs.cornell.edu/Info/People/raman/raman.html  (Cornell)
Disclaimer: The opinions expressed are my own and in no way should be taken
            as representative of my employer, Adobe Systems Inc.
____________________________________________________________________________