pub unsafe fn add_doc_entity(
doc: *mut _xmlDoc,
name: *const xmlChar,
etype: c_int,
ExternalID: *const xmlChar,
SystemID: *const xmlChar,
content: *const xmlChar,
) -> *mut _xmlEntityExpand description
Add an entity declaration to the document’s internal subset (upstream
entities.c xmlAddDocEntity); creates the internal subset when absent.
§SAFETY
docmust be a valid document pointer or NULL.namemust be a valid null-terminated string.