Chapter 13: Object-Based Abstractions

Another Scenario

But if there is another operator op2 beneath N on the stack, then we must compare the precedence of op and op2:

Stack Rest of Expression Next Action
... op2 N op ... $ Reduce, if prec(op2) ≥ prec(op)
Shift, otherwise

Stack	Rest of Expression	Next Action
... op2 N	op ... $	Reduce, if prec(op2) ≥ prec(op) Shift, otherwise