// cc_eeb.gr
// EEb example from CC04 submission

context_class EEB : public UserActions {};

terminals {
  0: TOK_EOF;
  1: TOK_PLUS "+";
  2: TOK_B "b";
  token(int) TOK_B;      // "b" sval is an int
}

nonterm(Node*) E {
  fun dup(n)     { n->incRefCt(); }
  fun del(n)     { n->delRefCt(); }
  fun merge(a,b) { return pickLeftAssocTree(a,b); }

  -> e1:E "+" e2:E       { return new PlusNode(e1, e2); }
  -> b:"b"               { return new LeafNode(b); }
}