0 $accept: expr $end
- 1 $@1: /* empty */
+ 1 $@1: %empty
2 expr: 'a' $@1 'b'
- 3 $@2: /* empty */
+ 3 $@2: %empty
4 expr: $@2 'c'
2 CONST_DEC_LIST: CONST_DEC
3 | CONST_DEC_LIST CONST_DEC
- 4 $@1: /* empty */
+ 4 $@1: %empty
5 CONST_DEC: $@1 undef_id_tok '=' const_id_tok ';'