Object XmlDocumentType

The XmlDocumentType object is used to access the entities defined by XML

Inheritance

Member attributes

name

String, returns the name of the DTD

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readonly String XmlDocumentType.name;

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publicId

String, can return the public identifier of the external DTD

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readonly String XmlDocumentType.publicId;

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systemId

String, can return the system identifier of the external DTD

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readonly String XmlDocumentType.systemId;

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nodeType

Integer, returns the node type of the node

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readonly Integer XmlDocumentType.nodeType;

The nodeType of different objects will return different values:

• XmlElement: ELEMENT_NODE(1)
• XmlAttr: ATTRIBUTE_NODE(2)
• XmlText: TEXT_NODE(3)
• XmlCDATASection: CDATA_SECTION_NODE(4)
• XmlProcessingInstruction: PROCESSING_INSTRUCTION_NODE(7)
• XmlComment: COMMENT_NODE(8)
• XmlDocument: DOCUMENT_NODE(9)
• XmlDocumentType: DOCUMENT_TYPE_NODE(10)

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nodeName

String, returns the name of the node, according to its type

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readonly String XmlDocumentType.nodeName;

The nodeName of different objects will return different values:

• XmlElement: element name
• XmlAttr: Property name
• XmlText: #text
• XmlCDATASection: #cdata-section
• XmlProcessingInstruction: Return to the specified target
• XmlComment: #comment
• XmlDocument: #document
• XmlDocumentType: doctype name

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nodeValue

String, returns the name of the node, according to its type

1
String XmlDocumentType.nodeValue;

The nodeName of different objects will return different values:

• XmlElement: null
• XmlAttr: The value of the attribute
• XmlText: The content of the node
• XmlCDATASection: The content of the node
• XmlProcessingInstruction: Return the specified content data
• XmlComment: Comment text
• XmlDocument: null
• XmlDocumentType: null

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ownerDocument

XmlDocument, Returns the root element of the node (XmlDocument Object)

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readonly XmlDocument XmlDocumentType.ownerDocument;

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parentNode

XmlNode, Can return the parent node of a node

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readonly XmlNode XmlDocumentType.parentNode;

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childNodes

XmlNodeList, Returns the node list of the child nodes of the specified node

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readonly XmlNodeList XmlDocumentType.childNodes;

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firstChild

XmlNode, Return the first child node of the node

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readonly XmlNode XmlDocumentType.firstChild;

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lastChild

XmlNode, Return the last child node of the node

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readonly XmlNode XmlDocumentType.lastChild;

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previousSibling

XmlNode, Returns the node immediately before a certain node (at the same tree level), if there is no such node, then the attribute returns null

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readonly XmlNode XmlDocumentType.previousSibling;

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nextSibling

XmlNode, Returns the node immediately following an element (in the same tree level), if there is no such node, the property returns null

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readonly XmlNode XmlDocumentType.nextSibling;

Member function

hasChildNodes

Query whether there are child nodes

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Boolean XmlDocumentType.hasChildNodes();

Return result:

• Boolean, Return true if there are any child nodes, otherwise return false

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normalize

Merge adjacent Text nodes and delete empty Text nodes

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XmlDocumentType.normalize();

This method will traverse all descendant nodes of the current node, and normalize the document by deleting the empty Text node and merging all adjacent Text nodes. This method is useful for simplifying the structure of the document tree after inserting or deleting nodes.

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cloneNode

Create an exact copy of the specified node

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XmlNode XmlDocumentType.cloneNode(Boolean deep = true);

Call parameters:

• deep: Boolean, whether to deep copy, when true, the cloned node will clone all child nodes of the original node

Return result:

• XmlNode, Return the copied node

This method will copy and return a copy of the node that called it. If the parameter passed to it is true, it will also recursively copy all descendants of the current node. Otherwise, it only copies the current node. The returned node does not belong to the document tree, and its parentNode property is null. When the Element node is copied, all its attributes will be copied.

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lookupPrefix

Returns the prefix matching the specified namespace URI on the current node

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String XmlDocumentType.lookupPrefix(String namespaceURI);

Call parameters:

• namespaceURI: String, specify the matching namespace URI

Return result:

• String, Returns the matched prefix, returns null if it is not matched

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lookupNamespaceURI

Returns the namespace URI that matches the specified prefix on the current node

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String XmlDocumentType.lookupNamespaceURI(String prefix);

Call parameters:

• prefix: String, specify the matching prefix

Return result:

• String, Returns the matching namespace URI, returns null if it is not matched

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insertBefore

Insert a new child node before the existing child node

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2
XmlNode XmlDocumentType.insertBefore(XmlNode newChild,
    XmlNode refChild);

Call parameters:

• newChild: XmlNode, Insert a new node
• refChild: XmlNode, Insert a new node before this node

Return result:

• XmlNode, Return the new child node

If newChild already exists in the document tree, it will be deleted from the document tree and then reinserted in its new position. Nodes from one document (or nodes created by one document) cannot be inserted into another document. In other words, the ownerDocument property of newChild must be the same as the ownerDocument property of the current node.

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insertAfter

Insert a new child node after the existing child node

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2
XmlNode XmlDocumentType.insertAfter(XmlNode newChild,
    XmlNode refChild);

Call parameters:

• newChild: XmlNode, Insert a new node
• refChild: XmlNode, Insert a new node after this node

Return result:

• XmlNode, Return the new child node

If newChild already exists in the document tree, it will be deleted from the document tree and then reinserted in its new position. Nodes from one document (or nodes created by one document) cannot be inserted into another document. In other words, the ownerDocument property of newChild must be the same as the ownerDocument property of the current node.

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appendChild

Add a new child node to the end of the node's child node list

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XmlNode XmlDocumentType.appendChild(XmlNode newChild);

Call parameters:

• newChild: XmlNode, Specify the added node

Return result:

• XmlNode, Return this new child node

If newChild already exists in the document tree, it will be deleted from the document tree and then reinserted in its new position. Nodes from one document (or nodes created by one document) cannot be inserted into another document. In other words, the ownerDocument property of newChild must be the same as the ownerDocument property of the current node.

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replaceChild

Replace one child node with another

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2
XmlNode XmlDocumentType.replaceChild(XmlNode newChild,
    XmlNode oldChild);

Call parameters:

• newChild: XmlNode, Specify a new node
• oldChild: XmlNode, Specify the node to be replaced

Return result:

• XmlNode, If the replacement is successful, this method can return the replaced node, if the replacement fails, it returns null

If newChild already exists in the document tree, it will be deleted from the document tree and then reinserted in its new position. Nodes from one document (or nodes created by one document) cannot be inserted into another document. In other words, the ownerDocument property of newChild must be the same as the ownerDocument property of the current node.

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removeChild

Remove a node from the list of child nodes

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XmlNode XmlDocumentType.removeChild(XmlNode oldChild);

Call parameters:

• oldChild: XmlNode, Specify the node to be deleted

Return result:

• XmlNode, If the deletion is successful, this method can return the deleted node, if it fails, it returns null

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toString

Returns the string representation of the object, generally returns "[Native Object]", the object can be re-implemented according to its own characteristics

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String XmlDocumentType.toString();

Return result:

• String, Returns the string representation of the object

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toJSON

Returns the JSON format representation of the object, generally returns a collection of readable attributes defined by the object

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Value XmlDocumentType.toJSON(String key = "");

Call parameters:

• key: String, unused

Return result:

• Value, Returns a value containing JSON serializable