char **ret_type, char **ret_type_instance);
int parse_identifier_vl (const char *str, value_list_t *vl);
int parse_value (const char *value, value_t *ret_value, int ds_type);
-int parse_value_ext (const char *value, value_t *ret_value, int ds_type, const char *error_identifier);
int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds);
/* parse_value_file reads "path" and parses its content as an integer or