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# QDomDocumentType Class Reference
[QtXml module]

The QDomDocumentType class is the representation of the DTD in the document tree. More...

     #include <QDomDocumentType>

Inherits QDomNode.

Note: All the functions in this class are reentrant.

- List of all members, including inherited members

### Public Functions

- QDomDocumentType ()
- QDomDocumentType ( const QDomDocumentType & n )
- QDomNamedNodeMap entities () const
- QString internalSubset () const
- QString name () const
- QDomNode::NodeType nodeType () const
- QDomNamedNodeMap notations () const
- QString publicId () const
- QString systemId () const
- QDomDocumentType & operator= ( const QDomDocumentType & n )

- 65 public functions inherited from QDomNode

## Detailed Description

The QDomDocumentType class is the representation of the DTD in the document tree.

The QDomDocumentType class allows read-only access to some of the data structures in the DTD: it can return a map of all entities() and notations(). In addition the function name() returns the name of the document type as specified in the &lt;!DOCTYPE name&gt; tag. This class also provides the publicId(), systemId() and internalSubset() functions.

See also QDomDocument.

## Member Function Documentation

### QDomDocumentType::QDomDocumentType ()

Creates an empty QDomDocumentType object.

### QDomDocumentType::QDomDocumentType ( const QDomDocumentType & n )

Constructs a copy of n.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().

### QDomNamedNodeMap QDomDocumentType::entities () const

Returns a map of all entities described in the DTD.

### QString QDomDocumentType::internalSubset () const

Returns the internal subset of the document type or an empty string if there is no internal subset.

See also publicId() and systemId().

### QString QDomDocumentType::name () const

Returns the name of the document type as specified in the &lt;!DOCTYPE name&gt; tag.

See also nodeName().

### QDomNode::NodeType QDomDocumentType::nodeType () const

Returns `DocumentTypeNode`.

See also isDocumentType() and QDomNode::toDocumentType().

### QDomNamedNodeMap QDomDocumentType::notations () const

Returns a map of all notations described in the DTD.

### QString QDomDocumentType::publicId () const

Returns the public identifier of the external DTD subset or an empty string if there is no public identifier.

See also systemId(), internalSubset(), and QDomImplementation::createDocumentType().

### QString QDomDocumentType::systemId () const

Returns the system identifier of the external DTD subset or an empty string if there is no system identifier.

See also publicId(), internalSubset(), and QDomImplementation::createDocumentType().

### QDomDocumentType & QDomDocumentType::operator= ( const QDomDocumentType & n )

Assigns n to this document type.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().