ANTLR beginner

Hey, I'm an ANTLR beginner looking for some help with my first ANTLR 
grammar.

I'm defining the grammar for a statement that looks more or less like a 
Java package statement, except that the keyword is 'module'.  So an 
example input file should look like this:

module my.module.this;

And the final program should output "my.module.this".  However, I can't 
get the generated C++ to compile.  It gives me errors on a not being 
defined.

Any ANTLR experts want to help?

Thanks,

Owen



Here's what I have:

class DParser extends Parser;

parse	:
	moduleDecl
	;

moduleDecl	:
		MODULE
		a:(ID (DOT ID)* ) { cout << a->getText(); }
		SEMI
		;

class DLexer extends Lexer;

SEMI	:
	';'
	;

DOT	:
	'.'
	;

ID	:
	( 'a'..'z' | 'A'..'Z' | '_' )
	( 'a'..'z' | 'A'..'Z' | '_' | '0'..'9')*
	;

MODULE	:
	"module"
	;