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# XML Processing and Modeling

Parse XML documents.

## Topics

### Tree-Based Processing

[`XMLDTD`](/documentation/Foundation/XMLDTD)

A representation of a Document Type Definition.

[`XMLDTDNode`](/documentation/Foundation/XMLDTDNode)

A representation of element, attribute-list, entity, and notation declarations in a Document Type Definition.

[`XMLDocument`](/documentation/Foundation/XMLDocument)

An XML document as internalized into a logical tree structure.

[`XMLElement`](/documentation/Foundation/XMLElement)

The element nodes in an XML tree structure.

[`XMLNode`](/documentation/Foundation/XMLNode)

The nodes in the abstract, logical tree structure that represents an XML document.

### Event-Based Processing

[`XMLParser`](/documentation/Foundation/XMLParser)

An event driven parser of XML documents (including DTD declarations).

[`XMLParserDelegate`](/documentation/Foundation/XMLParserDelegate)

The interface an XML parser uses to inform its delegate about the content of the parsed document.


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