Changes by: Jason Hickey (jyh at cs.caltech.edu)
Date: 1999-05-22 17:00:51 -0700 (Sat, 22 May 1999)
Revision: 2668
Log message:
Added ML side-conditions, so that rewrites and rules can be defined
with ML code in the really necessary cases. The ml_rw keyword
declares/defines an ML rewrite, and ml_rule declares/defines
an rule application defined in ML.