[antlr-interest] How to split int a,b;

[Christian Andersson]

---------------------------- Original Message ----------------------------
Subject: How to split  int a,b;
From:    "Christian Andersson" <dt05ca4 at student.lth.se>
Date:    Mon, October 1, 2007 11:38
To:      antlr-interest at antlr.org
--------------------------------------------------------------------------

Hi all,

I have this type declaration below:

int a,b;


My simple grammar looks like the following:

vardecl
:type declarator_list ';' ->^(DECL type declarator_list)
;

declarator_list
: ID (',' ID)* ->^(ID)+
;

My problem is that I want to split up int a,b; into two
separate declarations in my AST without moving the declarator_list rule
up to the vardecl rule.


I want this tree:

DECL      DECL
|   \     |   \
int  'a'  int 'b'

instead of:

DECL
|   \
int  List
     |  \
    'a' 'b'


Thanks for any help
BR Christian