DTD Syntax Glossary

DTD > DTD Syntax Glossary
 

The following expressions appear within a DTD document.  

DTD Expression Description
CDATA Data Type : Character Data
ID Data Type : Unique Identifier
IDREF Data Type : Reference to a Unique Identifier
IDREFS Data Type : Reference to a 0-n Unique Identifiers
ENTITY Data Type : Reference to an ENTITY Declaration
ENTITIES Data Type : Reference to an 0-n ENTITY Declarations
NMTOKEN Data Type : Named Token
NMTOKENS Data Type : 0-n Named Tokens
? Element cardinality : Optional (0-1)
* Element cardinality : Zero to Many (0-n)
+ Element cardinality : One to Many (1-n)
, Sequence : separates items within a sequence
| Choice : separates items within a choice
--> Ends a comment
<!-- Starts a comment
ANY Declares an attribute on an Element
ATTLIST Declares an attribute on an Element
EMPTY Declares an attribute on an Element
DOCTYPE Starts a DTD declaration
ELEMENT Defines an XML Element
ENTITY Defines an ENTITY, which can be used as a replacement token
NOTATION
#PCDATA Allows mixed content to be defined
#REQUIRED Attribute property : Attribute is required
#FIXED Attribute property : Attribute must have a specific value
#IMPLIED Attribute property : Attribute is optional (0-1)
SYSTEM ENTITY property : The entity value is to be loaded from a uri
PUBLIC ENTITY property : The entity value is refered to by a public identifier, or can be loaded from a uri

 

 

See Also

Try Liquid XML Free and see how we can help you today Free Trial