{ 'P', specifier_prefix_unescaped, NULL },
{ 'i', specifier_string, u->meta.instance },
{ 'I', specifier_instance_unescaped, NULL },
{ 'P', specifier_prefix_unescaped, NULL },
{ 'i', specifier_string, u->meta.instance },
{ 'I', specifier_instance_unescaped, NULL },