type dtd_attr_default = Types.dtd_attr_default = | DTDDefault of string |
| DTDRequired |
| DTDImplied |
| DTDFixed of string |
type dtd_attr_type = Types.dtd_attr_type = | DTDCData |
| DTDNMToken |
| DTDEnum of string list |
| DTDID |
| DTDIDRef |
type dtd_item = Types.dtd_item = | DTDAttribute of string * string * dtd_attr_type * dtd_attr_default |
| DTDElement of string * dtd_element_type |