pub unsafe extern "C" fn xmlIOParseDTD(
sax: xmlSAXHandlerPtr,
input: xmlParserInputBufferPtr,
enc: xmlCharEncoding,
) -> xmlDtdPtrpub unsafe extern "C" fn xmlIOParseDTD(
sax: xmlSAXHandlerPtr,
input: xmlParserInputBufferPtr,
enc: xmlCharEncoding,
) -> xmlDtdPtr