-int parse_DATA_LIST_vars (char ***names, size_t *cnt, int opts);
-int parse_mixed_vars (char ***names, size_t *cnt, int opts);
-int parse_mixed_vars_pool (struct pool *,
+bool parse_DATA_LIST_vars (struct lexer *, char ***names, size_t *cnt, int opts);
+bool parse_DATA_LIST_vars_pool (struct lexer *, struct pool *,
+ char ***names, size_t *cnt, int opts);
+bool parse_mixed_vars (struct lexer *, const struct dictionary *dict,
+ char ***names, size_t *cnt, int opts);
+bool parse_mixed_vars_pool (struct lexer *, const struct dictionary *dict,
+ struct pool *,