[antlr-interest] Can't see the wood (@init and @after)

[Paul Keir]

Hi Susan,

I tried it again just to be sure, and got the same result. If in the C.g 
file of the C project from the java ANTLR examples, I augment line 354's 
'expression' rule with two println calls, i.e.

expression

@init { System.out.println("a"); }
    : { System.out.println(" b"); } assignment_expression (',' 
assignment_expression)*
    ;

And then build and run the generated parser on the 'input' data, I find 
that I get a lot more letter 'a's output than letter 'b's. I don't 
understand why that is, but at least I have this example to hopefully 
learn from.

It's interesting that you can't repeat this. Perhaps someone else can, 
or help me to an understanding.

Cheers,
Paul