Com S 342 meeting -*- Outline -*-

* means of combination syntax
** syntax of expressions
   Q: What should the syntax be for expressions?
	consider parsing things like 3 + 4
	discuss parsing (LL(1) idea),
                parse trees (draw pictures)
                operator precedence (high, low)
	recall the goal of manipulating programs as data
        Q: how can we represent parse trees as linear text?
	what data structures do we have that would work?

** commands and combinations of commands
   Q: What commands do we need?
	assignment, sequencing, if-then-else,
        perhaps other special forms

	terms: expression language vs. statement language

        in 2001:

           primitive            compound
           ================================
           (set! x E)           (if b S1 S2)
           (f args)             while
           return               (begin S1 ... Sn)
           goto, break