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# CFXMLTree

```
typealias CFXMLTree = CFTree
```

## Overview

A CFXMLTree object is simply a CFTree object whose context data is known to be a CFXMLNode object. CFXMLTree is derived from CFTree—you can pass CFXMLTree objects in all the CFTree functions. As such, a CFXMLTree object can be used to represent an entire XML document; the CFTree object provides the tree structure of the document, while the CFXMLNode objects identify and describe the nodes of the tree. An XML document can be parsed to a CFXMLTree object, and a CFXMLTree object can generate the data for the equivalent XML document. This opaque type is expected to be used in conjunction with CFXMLParser and CFXMLNode objects.

## Topics

### CFXMLTree Miscellaneous Functions

[`CFXMLCreateStringByEscapingEntities(_:_:_:)`](/documentation/CoreFoundation/CFXMLCreateStringByEscapingEntities(_:_:_:))

Given a CFString object containing XML source with unescaped entities, returns a string with specified XML entities escaped.

[`CFXMLCreateStringByUnescapingEntities(_:_:_:)`](/documentation/CoreFoundation/CFXMLCreateStringByUnescapingEntities(_:_:_:))

Given a CFString object containing XML source with escaped entities, returns a string with specified XML entities unescaped.

[`CFXMLTreeCreateFromData`](/documentation/CoreFoundation/CFXMLTreeCreateFromData)

Parses the given XML data and returns the resulting CFXMLTree object.

[`CFXMLTreeCreateFromDataWithError`](/documentation/CoreFoundation/CFXMLTreeCreateFromDataWithError)

Parses the given XML data and returns the resulting CFXMLTree object and any error information.

[`CFXMLTreeCreateWithDataFromURL`](/documentation/CoreFoundation/CFXMLTreeCreateWithDataFromURL)

Creates a new CFXMLTree object by loading the data to be parsed directly from a data source.

[`CFXMLTreeCreateWithNode`](/documentation/CoreFoundation/CFXMLTreeCreateWithNode)

Creates a childless, parentless CFXMLTree object node for a CFXMLNode object.

[`CFXMLTreeCreateXMLData`](/documentation/CoreFoundation/CFXMLTreeCreateXMLData)

Generates an XML document from a CFXMLTree object which is ready to be written to permanent storage.

[`CFXMLTreeGetNode`](/documentation/CoreFoundation/CFXMLTreeGetNode)

Returns the node of a CFXMLTree object.

### Constants

[Error Dictionary Keys](/documentation/CoreFoundation/error-dictionary-keys)

The keys used in an error dictionary returned by some functions to provide more information about XML parse errors.

## See Also

  [XML Programming Topics for Core Foundation](https://developer.apple.com/library/archive/documentation/CoreFoundation/Conceptual/CFXML/CFXML.html#//apple_ref/doc/uid/10000138i)


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