121 lines
3.3 KiB
JavaScript
121 lines
3.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.XmlNode = void 0;
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/**
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* Base interface for a node in an XML document.
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*/
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class XmlNode {
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constructor() {
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/**
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* Parent node of this node, or `null` if this node has no parent.
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*/
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this.parent = null;
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/**
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* Starting byte offset of this node in the original XML string, or `-1` if
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* the offset is unknown.
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*/
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this.start = -1;
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/**
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* Ending byte offset of this node in the original XML string, or `-1` if the
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* offset is unknown.
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*/
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this.end = -1;
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}
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/**
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* Document that contains this node, or `null` if this node is not associated
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* with a document.
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*/
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get document() {
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return this.parent?.document ?? null;
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}
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/**
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* Whether this node is the root node of the document (also known as the
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* document element).
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*/
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get isRootNode() {
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return this.parent !== null
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&& this.parent === this.document
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&& this.type === XmlNode.TYPE_ELEMENT;
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}
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/**
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* Whether whitespace should be preserved in the content of this element and
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* its children.
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*
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* This is influenced by the value of the special `xml:space` attribute, and
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* will be `true` for any node whose `xml:space` attribute is set to
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* "preserve". If a node has no such attribute, it will inherit the value of
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* the nearest ancestor that does (if any).
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*
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* @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-white-space
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*/
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get preserveWhitespace() {
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return !!this.parent?.preserveWhitespace;
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}
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/**
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* Type of this node.
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*
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* The value of this property is a string that matches one of the static
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* `TYPE_*` properties on the `XmlNode` class (e.g. `TYPE_ELEMENT`,
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* `TYPE_TEXT`, etc.).
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*
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* The `XmlNode` class itself is a base class and doesn't have its own type
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* name.
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*/
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get type() {
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return '';
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}
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/**
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* Returns a JSON-serializable object representing this node, minus properties
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* that could result in circular references.
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*/
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toJSON() {
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let json = {
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type: this.type,
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};
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if (this.isRootNode) {
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json.isRootNode = true;
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}
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if (this.preserveWhitespace) {
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json.preserveWhitespace = true;
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}
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if (this.start !== -1) {
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json.start = this.start;
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json.end = this.end;
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}
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return json;
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}
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}
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exports.XmlNode = XmlNode;
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/**
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* Type value for an `XmlCdata` node.
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*/
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XmlNode.TYPE_CDATA = 'cdata';
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/**
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* Type value for an `XmlComment` node.
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*/
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XmlNode.TYPE_COMMENT = 'comment';
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/**
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* Type value for an `XmlDocument` node.
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*/
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XmlNode.TYPE_DOCUMENT = 'document';
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/**
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* Type value for an `XmlDocumentType` node.
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*/
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XmlNode.TYPE_DOCUMENT_TYPE = 'doctype';
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/**
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* Type value for an `XmlElement` node.
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*/
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XmlNode.TYPE_ELEMENT = 'element';
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/**
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* Type value for an `XmlProcessingInstruction` node.
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*/
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XmlNode.TYPE_PROCESSING_INSTRUCTION = 'pi';
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/**
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* Type value for an `XmlText` node.
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*/
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XmlNode.TYPE_TEXT = 'text';
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/**
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* Type value for an `XmlDeclaration` node.
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*/
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XmlNode.TYPE_XML_DECLARATION = 'xmldecl';
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//# sourceMappingURL=XmlNode.js.map
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