DocumentType createDocumentType(String qualifiedName, String publicId, String systemId) throws DOMException;
qualifiedName
The name of the document type. If you are using XML namespaces, this may be a qualified name that specifies a namespace prefix and a local name separated by a colon.
publicId
The public identifier of the document type, or null.
systemId
The system identifier of the document type, or null. This argument typically specifies the local filename of a DTD file.
A new DocumentType object with an ownerDocument property of null.
This method may throw a DOMException with one of the following code values:
INVALID_CHARACTER_ERR
qualifiedName contains an illegal character.
NAMESPACE_ERR
qualifiedName is malformed.
NOT_SUPPORTED_ERR
The current implementation does not support XML documents and has not implemented this method.
This method creates a new DocumentType node. This method specifies only an external subset of the document type. As of Level 2, the DOM standard does not provide any way for specifying an internal subset, and the returned DocumentType does not define any Entity or Notation nodes. This method is useful only with XML documents and may not be supported by HTML-only implementations.