- Qt 6.8
- Qt XML
- C++ Classes
- QDomDocumentType
- Qt 6.8.1 Reference Documentation

# QDomDocumentType Class

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

Header: | `#include <QDomDocumentType>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Xml)` `target_link_libraries(mytarget PRIVATE Qt6::Xml)`
qmake: | `QT += xml`
Inherits: | QDomNode

- List of all members, including inherited members
- QDomDocumentType is part of XML Classes.

Note: All functions in this class are reentrant.

## Public Functions

| QDomDocumentType()
| QDomDocumentType(const QDomDocumentType &documentType)
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 &other)

## Detailed Description

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 &documentType)

Constructs a copy of documentType.

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 &other)

Assigns other 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().