[antlr-interest] stuck on templates

[Warner Onstine]

I've been reading through the book and the CMinus example included in
the v3 zip example set and I must be missing something because I can't
get anything to work at all.

Here is what I gathered from the book and from the site and
(hopefully) you can tell me where my mistake is.

First a rule like this:
packageDecl
	:	'package' name=QID
	;

can be translated to something like this:
packageDecl
	:	'package' name=QID -> package_name(name=name.text)
	;

Where package_name() is declared in my stg file like this:

package_name ::= "package <name>;"

Is this right? If so, why do I keep getting an error in ANTLRWorks
saying "Undefined reference 'package_name'".

I also tried to do something similar to the CMinus example here:

program
scope {
  List globals;
  List functions;
}
@init {
  $program::globals = new ArrayList();
  $program::functions = new ArrayList();
}

But when I did that ANTLRWorks first complains about "program" being
defined already (in the @init section) and it then complains about not
finding ArrayList (even though I added it in the @header section.

Thanks for any help, just trying to wrap my head around this stuff.

-warner
-- 
Warner Onstine - Programmer/Author
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