XML DTDs

• XML DTDs
• What is XML?
• XML is a Meta Markup Language
• A Song Description in HTML
• A Song Description in XML
• A DTD for Songs
• A Valid Song Document
• Validity
• Checking Validity
• What is XML used for?
• Domain-Specific Markup Languages
• Self-Describing Data
• Interchange of Data Among Applications
• Structured and Integrated Data
• XML Applications
• Well-formedness vs validity
• Well-formedness Rules
• Open and close all tags
• Empty tags end with />
• There is a unique root element
• Elements may not overlap
• Attribute values are quoted
• < and & are only used to start tags and entities
• Only the five predefined entity references are used
• DTDs and Validity
• What is a DTD?
• The importance of validation
• A DTD for greeting.xml
• Document Type Declarations
• Invalid Documents
• Validating Tools
• Internal DTDs
• An Example Document
• Element Declarations
• Content Specifications
• ANY
• #PCDATA
• #PCDATA
• #PCDATA
• Comments in DTDs
• Child Elements
• Child Elements
• Sequences
• More Sequences
• One or More Children +
• Zero or More Children *
• Zero or One Children ?
• Choices
• Grouping With Parentheses
• Mixed Content
• Empty elements
• Content Models You Can't Declare
• Attribute Declarations
• Multiple Attribute Declarations
• Attribute Default Values
• #REQUIRED
• #IMPLIED
• #FIXED
• Attribute Types
• CDATA
• ID
• IDREF
• IDREFS
• Finished DTD
• ENTITY
• ENTITIES
• NOTATION
• NMTOKEN
• NMTOKENS
• Enumerated
• The description element
• XHTML
• XHTML strict DTD
• External Parameter Entity References
• Finished DTD
• Internal DTD Subsets
• Schemas
• To Learn More
• Questions?

Entire Presentation as Single File