ooops; 2/19/2011, i note that "sits between +/- binary and * binary ops" is wrong.
I should be working on something else but got to thinking about how annoying it is specifying expressions in recursive descent parsers. You have to have a new rule for each precedence level. This is also very slow. Just to match 34 it has to descend about 15 method calls. I built a prototype single-rule (plus primary and suffix) operator matching thingie which I enclose below. I should be able to generate it from some metameta syntax in antlr. For example, this is what I would really like to specify when doing expressions rather than the 15 or so rules to define the precedence levels:
...